Pileus Git - ~andy/gtk/blob - gtk/gtktreeview.c

   1 /* gtktreeview.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20
  21 #include "config.h"
  22 #include <string.h>
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "gtktreeview.h"
  26 #include "gtkrbtree.h"
  27 #include "gtktreednd.h"
  28 #include "gtktreeprivate.h"
  29 #include "gtkcellrenderer.h"
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkbuildable.h"
  33 #include "gtkbutton.h"
  34 #include "gtkalignment.h"
  35 #include "gtklabel.h"
  36 #include "gtkhbox.h"
  37 #include "gtkvbox.h"
  38 #include "gtkarrow.h"
  39 #include "gtkintl.h"
  40 #include "gtkbindings.h"
  41 #include "gtkcontainer.h"
  42 #include "gtkentry.h"
  43 #include "gtkframe.h"
  44 #include "gtktreemodelsort.h"
  45 #include "gtktooltip.h"
  46 #include "gtksizerequest.h"
  47 #include "gtkprivate.h"
  48
  49 #define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
  50 #define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
  51 #define GTK_TREE_VIEW_TIME_MS_PER_IDLE 30
  52 #define SCROLL_EDGE_SIZE 15
  53 #define EXPANDER_EXTRA_PADDING 4
  54 #define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
  55 #define AUTO_EXPAND_TIMEOUT 500
  56
  57 /* The "background" areas of all rows/cells add up to cover the entire tree.
  58  * The background includes all inter-row and inter-cell spacing.
  59  * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
  60  * i.e. just the cells, no spacing.
  61  */
  62
  63 #define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
  64 #define CELL_HEIGHT(node, separator) ((BACKGROUND_HEIGHT (node)) - (separator))
  65
  66 /* Translate from bin_window coordinates to rbtree (tree coordinates) and
  67  * vice versa.
  68  */
  69 #define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
  70 #define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)
  71
  72 /* This is in bin_window coordinates */
  73 #define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, _gtk_rbtree_node_find_offset ((tree), (node))))
  74 #define CELL_FIRST_PIXEL(tree_view,tree,node,separator) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + separator/2)
  75
  76 #define ROW_HEIGHT(tree_view,height) \
  77   ((height > 0) ? (height) : (tree_view)->priv->expander_size)
  78
  79
  80 typedef struct _GtkTreeViewChild GtkTreeViewChild;
  81 struct _GtkTreeViewChild
  82 {
  83   GtkWidget *widget;
  84   gint x;
  85   gint y;
  86   gint width;
  87   gint height;
  88 };
  89
  90
  91 typedef struct _TreeViewDragInfo TreeViewDragInfo;
  92 struct _TreeViewDragInfo
  93 {
  94   GdkModifierType start_button_mask;
  95   GtkTargetList *_unused_source_target_list;
  96   GdkDragAction source_actions;
  97
  98   GtkTargetList *_unused_dest_target_list;
  99
 100   guint source_set : 1;
 101   guint dest_set : 1;
 102 };
 103
 104
 105 /* Signals */
 106 enum
 107 {
 108   ROW_ACTIVATED,
 109   TEST_EXPAND_ROW,
 110   TEST_COLLAPSE_ROW,
 111   ROW_EXPANDED,
 112   ROW_COLLAPSED,
 113   COLUMNS_CHANGED,
 114   CURSOR_CHANGED,
 115   MOVE_CURSOR,
 116   SELECT_ALL,
 117   UNSELECT_ALL,
 118   SELECT_CURSOR_ROW,
 119   TOGGLE_CURSOR_ROW,
 120   EXPAND_COLLAPSE_CURSOR_ROW,
 121   SELECT_CURSOR_PARENT,
 122   START_INTERACTIVE_SEARCH,
 123   LAST_SIGNAL
 124 };
 125
 126 /* Properties */
 127 enum {
 128   PROP_0,
 129   PROP_MODEL,
 130   PROP_HADJUSTMENT,
 131   PROP_VADJUSTMENT,
 132   PROP_HEADERS_VISIBLE,
 133   PROP_HEADERS_CLICKABLE,
 134   PROP_EXPANDER_COLUMN,
 135   PROP_REORDERABLE,
 136   PROP_RULES_HINT,
 137   PROP_ENABLE_SEARCH,
 138   PROP_SEARCH_COLUMN,
 139   PROP_FIXED_HEIGHT_MODE,
 140   PROP_HOVER_SELECTION,
 141   PROP_HOVER_EXPAND,
 142   PROP_SHOW_EXPANDERS,
 143   PROP_LEVEL_INDENTATION,
 144   PROP_RUBBER_BANDING,
 145   PROP_ENABLE_GRID_LINES,
 146   PROP_ENABLE_TREE_LINES,
 147   PROP_TOOLTIP_COLUMN
 148 };
 149
 150 /* object signals */
 151 static void     gtk_tree_view_finalize             (GObject          *object);
 152 static void     gtk_tree_view_set_property         (GObject         *object,
 153                                                     guint            prop_id,
 154                                                     const GValue    *value,
 155                                                     GParamSpec      *pspec);
 156 static void     gtk_tree_view_get_property         (GObject         *object,
 157                                                     guint            prop_id,
 158                                                     GValue          *value,
 159                                                     GParamSpec      *pspec);
 160
 161 /* gtkobject signals */
 162 static void     gtk_tree_view_destroy              (GtkObject        *object);
 163
 164 /* gtkwidget signals */
 165 static void     gtk_tree_view_realize              (GtkWidget        *widget);
 166 static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
 167 static void     gtk_tree_view_map                  (GtkWidget        *widget);
 168 static void     gtk_tree_view_size_request         (GtkWidget        *widget,
 169                                                     GtkRequisition   *requisition);
 170 static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
 171                                                     GtkAllocation    *allocation);
 172 static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
 173                                                     GdkEventExpose   *event);
 174 static gboolean gtk_tree_view_key_press            (GtkWidget        *widget,
 175                                                     GdkEventKey      *event);
 176 static gboolean gtk_tree_view_key_release          (GtkWidget        *widget,
 177                                                     GdkEventKey      *event);
 178 static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
 179                                                     GdkEventMotion   *event);
 180 static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
 181                                                     GdkEventCrossing *event);
 182 static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
 183                                                     GdkEventCrossing *event);
 184 static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
 185                                                     GdkEventButton   *event);
 186 static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
 187                                                     GdkEventButton   *event);
 188 static gboolean gtk_tree_view_grab_broken          (GtkWidget          *widget,
 189                                                     GdkEventGrabBroken *event);
 190 #if 0
 191 static gboolean gtk_tree_view_configure            (GtkWidget         *widget,
 192                                                     GdkEventConfigure *event);
 193 #endif
 194
 195 static void     gtk_tree_view_set_focus_child      (GtkContainer     *container,
 196                                                     GtkWidget        *child);
 197 static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
 198                                                     GdkEventFocus    *event);
 199 static gint     gtk_tree_view_focus                (GtkWidget        *widget,
 200                                                     GtkDirectionType  direction);
 201 static void     gtk_tree_view_grab_focus           (GtkWidget        *widget);
 202 static void     gtk_tree_view_style_set            (GtkWidget        *widget,
 203                                                     GtkStyle         *previous_style);
 204 static void     gtk_tree_view_grab_notify          (GtkWidget        *widget,
 205                                                     gboolean          was_grabbed);
 206 static void     gtk_tree_view_state_changed        (GtkWidget        *widget,
 207                                                     GtkStateType      previous_state);
 208
 209 /* container signals */
 210 static void     gtk_tree_view_remove               (GtkContainer     *container,
 211                                                     GtkWidget        *widget);
 212 static void     gtk_tree_view_forall               (GtkContainer     *container,
 213                                                     gboolean          include_internals,
 214                                                     GtkCallback       callback,
 215                                                     gpointer          callback_data);
 216
 217 /* Source side drag signals */
 218 static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
 219                                             GdkDragContext   *context);
 220 static void gtk_tree_view_drag_end         (GtkWidget        *widget,
 221                                             GdkDragContext   *context);
 222 static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
 223                                             GdkDragContext   *context,
 224                                             GtkSelectionData *selection_data,
 225                                             guint             info,
 226                                             guint             time);
 227 static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
 228                                             GdkDragContext   *context);
 229
 230 /* Target side drag signals */
 231 static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
 232                                                   GdkDragContext   *context,
 233                                                   guint             time);
 234 static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
 235                                                   GdkDragContext   *context,
 236                                                   gint              x,
 237                                                   gint              y,
 238                                                   guint             time);
 239 static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
 240                                                   GdkDragContext   *context,
 241                                                   gint              x,
 242                                                   gint              y,
 243                                                   guint             time);
 244 static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
 245                                                   GdkDragContext   *context,
 246                                                   gint              x,
 247                                                   gint              y,
 248                                                   GtkSelectionData *selection_data,
 249                                                   guint             info,
 250                                                   guint             time);
 251
 252 /* tree_model signals */
 253 static void gtk_tree_view_set_adjustments                 (GtkTreeView     *tree_view,
 254                                                            GtkAdjustment   *hadj,
 255                                                            GtkAdjustment   *vadj);
 256 static gboolean gtk_tree_view_real_move_cursor            (GtkTreeView     *tree_view,
 257                                                            GtkMovementStep  step,
 258                                                            gint             count);
 259 static gboolean gtk_tree_view_real_select_all             (GtkTreeView     *tree_view);
 260 static gboolean gtk_tree_view_real_unselect_all           (GtkTreeView     *tree_view);
 261 static gboolean gtk_tree_view_real_select_cursor_row      (GtkTreeView     *tree_view,
 262                                                            gboolean         start_editing);
 263 static gboolean gtk_tree_view_real_toggle_cursor_row      (GtkTreeView     *tree_view);
 264 static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView     *tree_view,
 265                                                                gboolean         logical,
 266                                                                gboolean         expand,
 267                                                                gboolean         open_all);
 268 static gboolean gtk_tree_view_real_select_cursor_parent   (GtkTreeView     *tree_view);
 269 static void gtk_tree_view_row_changed                     (GtkTreeModel    *model,
 270                                                            GtkTreePath     *path,
 271                                                            GtkTreeIter     *iter,
 272                                                            gpointer         data);
 273 static void gtk_tree_view_row_inserted                    (GtkTreeModel    *model,
 274                                                            GtkTreePath     *path,
 275                                                            GtkTreeIter     *iter,
 276                                                            gpointer         data);
 277 static void gtk_tree_view_row_has_child_toggled           (GtkTreeModel    *model,
 278                                                            GtkTreePath     *path,
 279                                                            GtkTreeIter     *iter,
 280                                                            gpointer         data);
 281 static void gtk_tree_view_row_deleted                     (GtkTreeModel    *model,
 282                                                            GtkTreePath     *path,
 283                                                            gpointer         data);
 284 static void gtk_tree_view_rows_reordered                  (GtkTreeModel    *model,
 285                                                            GtkTreePath     *parent,
 286                                                            GtkTreeIter     *iter,
 287                                                            gint            *new_order,
 288                                                            gpointer         data);
 289
 290 /* Incremental reflow */
 291 static gboolean validate_row             (GtkTreeView *tree_view,
 292                                           GtkRBTree   *tree,
 293                                           GtkRBNode   *node,
 294                                           GtkTreeIter *iter,
 295                                           GtkTreePath *path);
 296 static void     validate_visible_area    (GtkTreeView *tree_view);
 297 static gboolean validate_rows_handler    (GtkTreeView *tree_view);
 298 static gboolean do_validate_rows         (GtkTreeView *tree_view,
 299                                           gboolean     size_request);
 300 static gboolean validate_rows            (GtkTreeView *tree_view);
 301 static gboolean presize_handler_callback (gpointer     data);
 302 static void     install_presize_handler  (GtkTreeView *tree_view);
 303 static void     install_scroll_sync_handler (GtkTreeView *tree_view);
 304 static void     gtk_tree_view_set_top_row   (GtkTreeView *tree_view,
 305                                              GtkTreePath *path,
 306                                              gint         offset);
 307 static void     gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
 308 static void     gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
 309 static void     invalidate_empty_focus      (GtkTreeView *tree_view);
 310
 311 /* Internal functions */
 312 static gboolean gtk_tree_view_is_expander_column             (GtkTreeView        *tree_view,
 313                                                               GtkTreeViewColumn  *column);
 314 static void     gtk_tree_view_add_move_binding               (GtkBindingSet      *binding_set,
 315                                                               guint               keyval,
 316                                                               guint               modmask,
 317                                                               gboolean            add_shifted_binding,
 318                                                               GtkMovementStep     step,
 319                                                               gint                count);
 320 static gint     gtk_tree_view_unref_and_check_selection_tree (GtkTreeView        *tree_view,
 321                                                               GtkRBTree          *tree);
 322 static void     gtk_tree_view_queue_draw_path                (GtkTreeView        *tree_view,
 323                                                               GtkTreePath        *path,
 324                                                               const GdkRectangle *clip_rect);
 325 static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView        *tree_view,
 326                                                               GtkRBTree          *tree,
 327                                                               GtkRBNode          *node,
 328                                                               const GdkRectangle *clip_rect);
 329 static void     gtk_tree_view_draw_arrow                     (GtkTreeView        *tree_view,
 330                                                               GtkRBTree          *tree,
 331                                                               GtkRBNode          *node,
 332                                                               gint                x,
 333                                                               gint                y);
 334 static void     gtk_tree_view_get_arrow_xrange               (GtkTreeView        *tree_view,
 335                                                               GtkRBTree          *tree,
 336                                                               gint               *x1,
 337                                                               gint               *x2);
 338 static gint     gtk_tree_view_new_column_width               (GtkTreeView        *tree_view,
 339                                                               gint                i,
 340                                                               gint               *x);
 341 static void     gtk_tree_view_adjustment_changed             (GtkAdjustment      *adjustment,
 342                                                               GtkTreeView        *tree_view);
 343 static void     gtk_tree_view_build_tree                     (GtkTreeView        *tree_view,
 344                                                               GtkRBTree          *tree,
 345                                                               GtkTreeIter        *iter,
 346                                                               gint                depth,
 347                                                               gboolean            recurse);
 348 static void     gtk_tree_view_clamp_node_visible             (GtkTreeView        *tree_view,
 349                                                               GtkRBTree          *tree,
 350                                                               GtkRBNode          *node);
 351 static void     gtk_tree_view_clamp_column_visible           (GtkTreeView        *tree_view,
 352                                                               GtkTreeViewColumn  *column,
 353                                                               gboolean            focus_to_cell);
 354 static gboolean gtk_tree_view_maybe_begin_dragging_row       (GtkTreeView        *tree_view,
 355                                                               GdkEventMotion     *event);
 356 static void     gtk_tree_view_focus_to_cursor                (GtkTreeView        *tree_view);
 357 static void     gtk_tree_view_move_cursor_up_down            (GtkTreeView        *tree_view,
 358                                                               gint                count);
 359 static void     gtk_tree_view_move_cursor_page_up_down       (GtkTreeView        *tree_view,
 360                                                               gint                count);
 361 static void     gtk_tree_view_move_cursor_left_right         (GtkTreeView        *tree_view,
 362                                                               gint                count);
 363 static void     gtk_tree_view_move_cursor_start_end          (GtkTreeView        *tree_view,
 364                                                               gint                count);
 365 static gboolean gtk_tree_view_real_collapse_row              (GtkTreeView        *tree_view,
 366                                                               GtkTreePath        *path,
 367                                                               GtkRBTree          *tree,
 368                                                               GtkRBNode          *node,
 369                                                               gboolean            animate);
 370 static gboolean gtk_tree_view_real_expand_row                (GtkTreeView        *tree_view,
 371                                                               GtkTreePath        *path,
 372                                                               GtkRBTree          *tree,
 373                                                               GtkRBNode          *node,
 374                                                               gboolean            open_all,
 375                                                               gboolean            animate);
 376 static void     gtk_tree_view_real_set_cursor                (GtkTreeView        *tree_view,
 377                                                               GtkTreePath        *path,
 378                                                               gboolean            clear_and_select,
 379                                                               gboolean            clamp_node);
 380 static gboolean gtk_tree_view_has_special_cell               (GtkTreeView        *tree_view);
 381 static void     column_sizing_notify                         (GObject            *object,
 382                                                               GParamSpec         *pspec,
 383                                                               gpointer            data);
 384 static gboolean expand_collapse_timeout                      (gpointer            data);
 385 static void     add_expand_collapse_timeout                  (GtkTreeView        *tree_view,
 386                                                               GtkRBTree          *tree,
 387                                                               GtkRBNode          *node,
 388                                                               gboolean            expand);
 389 static void     remove_expand_collapse_timeout               (GtkTreeView        *tree_view);
 390 static void     cancel_arrow_animation                       (GtkTreeView        *tree_view);
 391 static gboolean do_expand_collapse                           (GtkTreeView        *tree_view);
 392 static void     gtk_tree_view_stop_rubber_band               (GtkTreeView        *tree_view);
 393 static void     update_prelight                              (GtkTreeView        *tree_view,
 394                                                               int                 x,
 395                                                               int                 y);
 396
 397 /* interactive search */
 398 static void     gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
 399 static void     gtk_tree_view_search_dialog_hide        (GtkWidget        *search_dialog,
 400                                                          GtkTreeView      *tree_view,
 401                                                          GdkDevice        *device);
 402 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 403                                                          GtkWidget        *search_dialog,
 404                                                          gpointer          user_data);
 405 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 406                                                          GtkMenu          *menu,
 407                                                          gpointer          data);
 408 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 409                                                          GtkTreeView      *tree_view);
 410 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 411                                                          GtkTreeView      *tree_view);
 412 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 413 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 414                                                          gpointer          data);
 415 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 416                                                          GdkEventAny      *event,
 417                                                          GtkTreeView      *tree_view);
 418 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 419                                                          GdkEventButton   *event,
 420                                                          GtkTreeView      *tree_view);
 421 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 422                                                          GdkEventScroll   *event,
 423                                                          GtkTreeView      *tree_view);
 424 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 425                                                          GdkEventKey      *event,
 426                                                          GtkTreeView      *tree_view);
 427 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 428                                                          GtkTreeView      *tree_view,
 429                                                          gboolean          up);
 430 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 431                                                          gint              column,
 432                                                          const gchar      *key,
 433                                                          GtkTreeIter      *iter,
 434                                                          gpointer          search_data);
 435 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 436                                                          GtkTreeSelection *selection,
 437                                                          GtkTreeIter      *iter,
 438                                                          const gchar      *text,
 439                                                          gint             *count,
 440                                                          gint              n);
 441 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 442                                                          GtkTreeView      *tree_view);
 443 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 444                                                          GtkWidget        *child_widget,
 445                                                          gint              x,
 446                                                          gint              y,
 447                                                          gint              width,
 448                                                          gint              height);
 449 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 450                                                          GtkTreePath      *cursor_path);
 451 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 452                                               GtkTreeViewColumn *column,
 453                                               GtkTreePath       *path,
 454                                               GtkCellEditable   *cell_editable,
 455                                               GdkRectangle      *cell_area,
 456                                               GdkEvent          *event,
 457                                               guint              flags);
 458 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 459                                                          gboolean     cancel_editing);
 460 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 461                                                              GdkDevice   *device,
 462                                                              gboolean     keybinding);
 463 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 464 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 465                                                          GtkTreeViewColumn *column,
 466                                                          gint               drop_position);
 467
 468 /* GtkBuildable */
 469 static void     gtk_tree_view_buildable_add_child          (GtkBuildable      *tree_view,
 470                                                             GtkBuilder        *builder,
 471                                                             GObject           *child,
 472                                                             const gchar       *type);
 473 static GObject *gtk_tree_view_buildable_get_internal_child (GtkBuildable      *buildable,
 474                                                             GtkBuilder        *builder,
 475                                                             const gchar       *childname);
 476 static void     gtk_tree_view_buildable_init               (GtkBuildableIface *iface);
 477
 478
 479 static gboolean scroll_row_timeout                   (gpointer     data);
 480 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 481 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 482
 483 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 484
 485 \f
 486
 487 /* GType Methods
 488  */
 489
 490 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 491                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 492                                                 gtk_tree_view_buildable_init))
 493
 494 static void
 495 gtk_tree_view_class_init (GtkTreeViewClass *class)
 496 {
 497   GObjectClass *o_class;
 498   GtkObjectClass *object_class;
 499   GtkWidgetClass *widget_class;
 500   GtkContainerClass *container_class;
 501   GtkBindingSet *binding_set;
 502
 503   binding_set = gtk_binding_set_by_class (class);
 504
 505   o_class = (GObjectClass *) class;
 506   object_class = (GtkObjectClass *) class;
 507   widget_class = (GtkWidgetClass *) class;
 508   container_class = (GtkContainerClass *) class;
 509
 510   /* GObject signals */
 511   o_class->set_property = gtk_tree_view_set_property;
 512   o_class->get_property = gtk_tree_view_get_property;
 513   o_class->finalize = gtk_tree_view_finalize;
 514
 515   /* GtkObject signals */
 516   object_class->destroy = gtk_tree_view_destroy;
 517
 518   /* GtkWidget signals */
 519   widget_class->map = gtk_tree_view_map;
 520   widget_class->realize = gtk_tree_view_realize;
 521   widget_class->unrealize = gtk_tree_view_unrealize;
 522   widget_class->size_request = gtk_tree_view_size_request;
 523   widget_class->size_allocate = gtk_tree_view_size_allocate;
 524   widget_class->button_press_event = gtk_tree_view_button_press;
 525   widget_class->button_release_event = gtk_tree_view_button_release;
 526   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 527   /*widget_class->configure_event = gtk_tree_view_configure;*/
 528   widget_class->motion_notify_event = gtk_tree_view_motion;
 529   widget_class->expose_event = gtk_tree_view_expose;
 530   widget_class->key_press_event = gtk_tree_view_key_press;
 531   widget_class->key_release_event = gtk_tree_view_key_release;
 532   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 533   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 534   widget_class->focus_out_event = gtk_tree_view_focus_out;
 535   widget_class->drag_begin = gtk_tree_view_drag_begin;
 536   widget_class->drag_end = gtk_tree_view_drag_end;
 537   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 538   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 539   widget_class->drag_leave = gtk_tree_view_drag_leave;
 540   widget_class->drag_motion = gtk_tree_view_drag_motion;
 541   widget_class->drag_drop = gtk_tree_view_drag_drop;
 542   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 543   widget_class->focus = gtk_tree_view_focus;
 544   widget_class->grab_focus = gtk_tree_view_grab_focus;
 545   widget_class->style_set = gtk_tree_view_style_set;
 546   widget_class->grab_notify = gtk_tree_view_grab_notify;
 547   widget_class->state_changed = gtk_tree_view_state_changed;
 548
 549   /* GtkContainer signals */
 550   container_class->remove = gtk_tree_view_remove;
 551   container_class->forall = gtk_tree_view_forall;
 552   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 553
 554   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 555   class->move_cursor = gtk_tree_view_real_move_cursor;
 556   class->select_all = gtk_tree_view_real_select_all;
 557   class->unselect_all = gtk_tree_view_real_unselect_all;
 558   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 559   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 560   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 561   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 562   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 563
 564   /* Properties */
 565
 566   g_object_class_install_property (o_class,
 567                                    PROP_MODEL,
 568                                    g_param_spec_object ("model",
 569                                                         P_("TreeView Model"),
 570                                                         P_("The model for the tree view"),
 571                                                         GTK_TYPE_TREE_MODEL,
 572                                                         GTK_PARAM_READWRITE));
 573
 574   g_object_class_install_property (o_class,
 575                                    PROP_HADJUSTMENT,
 576                                    g_param_spec_object ("hadjustment",
 577                                                         P_("Horizontal Adjustment"),
 578                                                         P_("Horizontal Adjustment for the widget"),
 579                                                         GTK_TYPE_ADJUSTMENT,
 580                                                         GTK_PARAM_READWRITE));
 581
 582   g_object_class_install_property (o_class,
 583                                    PROP_VADJUSTMENT,
 584                                    g_param_spec_object ("vadjustment",
 585                                                         P_("Vertical Adjustment"),
 586                                                         P_("Vertical Adjustment for the widget"),
 587                                                         GTK_TYPE_ADJUSTMENT,
 588                                                         GTK_PARAM_READWRITE));
 589
 590   g_object_class_install_property (o_class,
 591                                    PROP_HEADERS_VISIBLE,
 592                                    g_param_spec_boolean ("headers-visible",
 593                                                          P_("Headers Visible"),
 594                                                          P_("Show the column header buttons"),
 595                                                          TRUE,
 596                                                          GTK_PARAM_READWRITE));
 597
 598   g_object_class_install_property (o_class,
 599                                    PROP_HEADERS_CLICKABLE,
 600                                    g_param_spec_boolean ("headers-clickable",
 601                                                          P_("Headers Clickable"),
 602                                                          P_("Column headers respond to click events"),
 603                                                          TRUE,
 604                                                          GTK_PARAM_READWRITE));
 605
 606   g_object_class_install_property (o_class,
 607                                    PROP_EXPANDER_COLUMN,
 608                                    g_param_spec_object ("expander-column",
 609                                                         P_("Expander Column"),
 610                                                         P_("Set the column for the expander column"),
 611                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 612                                                         GTK_PARAM_READWRITE));
 613
 614   g_object_class_install_property (o_class,
 615                                    PROP_REORDERABLE,
 616                                    g_param_spec_boolean ("reorderable",
 617                                                          P_("Reorderable"),
 618                                                          P_("View is reorderable"),
 619                                                          FALSE,
 620                                                          GTK_PARAM_READWRITE));
 621
 622   g_object_class_install_property (o_class,
 623                                    PROP_RULES_HINT,
 624                                    g_param_spec_boolean ("rules-hint",
 625                                                          P_("Rules Hint"),
 626                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 627                                                          FALSE,
 628                                                          GTK_PARAM_READWRITE));
 629
 630     g_object_class_install_property (o_class,
 631                                      PROP_ENABLE_SEARCH,
 632                                      g_param_spec_boolean ("enable-search",
 633                                                            P_("Enable Search"),
 634                                                            P_("View allows user to search through columns interactively"),
 635                                                            TRUE,
 636                                                            GTK_PARAM_READWRITE));
 637
 638     g_object_class_install_property (o_class,
 639                                      PROP_SEARCH_COLUMN,
 640                                      g_param_spec_int ("search-column",
 641                                                        P_("Search Column"),
 642                                                        P_("Model column to search through during interactive search"),
 643                                                        -1,
 644                                                        G_MAXINT,
 645                                                        -1,
 646                                                        GTK_PARAM_READWRITE));
 647
 648     /**
 649      * GtkTreeView:fixed-height-mode:
 650      *
 651      * Setting the ::fixed-height-mode property to %TRUE speeds up
 652      * #GtkTreeView by assuming that all rows have the same height.
 653      * Only enable this option if all rows are the same height.
 654      * Please see gtk_tree_view_set_fixed_height_mode() for more
 655      * information on this option.
 656      *
 657      * Since: 2.4
 658      **/
 659     g_object_class_install_property (o_class,
 660                                      PROP_FIXED_HEIGHT_MODE,
 661                                      g_param_spec_boolean ("fixed-height-mode",
 662                                                            P_("Fixed Height Mode"),
 663                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 664                                                            FALSE,
 665                                                            GTK_PARAM_READWRITE));
 666
 667     /**
 668      * GtkTreeView:hover-selection:
 669      *
 670      * Enables or disables the hover selection mode of @tree_view.
 671      * Hover selection makes the selected row follow the pointer.
 672      * Currently, this works only for the selection modes
 673      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 674      *
 675      * This mode is primarily intended for treeviews in popups, e.g.
 676      * in #GtkComboBox or #GtkEntryCompletion.
 677      *
 678      * Since: 2.6
 679      */
 680     g_object_class_install_property (o_class,
 681                                      PROP_HOVER_SELECTION,
 682                                      g_param_spec_boolean ("hover-selection",
 683                                                            P_("Hover Selection"),
 684                                                            P_("Whether the selection should follow the pointer"),
 685                                                            FALSE,
 686                                                            GTK_PARAM_READWRITE));
 687
 688     /**
 689      * GtkTreeView:hover-expand:
 690      *
 691      * Enables or disables the hover expansion mode of @tree_view.
 692      * Hover expansion makes rows expand or collapse if the pointer moves
 693      * over them.
 694      *
 695      * This mode is primarily intended for treeviews in popups, e.g.
 696      * in #GtkComboBox or #GtkEntryCompletion.
 697      *
 698      * Since: 2.6
 699      */
 700     g_object_class_install_property (o_class,
 701                                      PROP_HOVER_EXPAND,
 702                                      g_param_spec_boolean ("hover-expand",
 703                                                            P_("Hover Expand"),
 704                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 705                                                            FALSE,
 706                                                            GTK_PARAM_READWRITE));
 707
 708     /**
 709      * GtkTreeView:show-expanders:
 710      *
 711      * %TRUE if the view has expanders.
 712      *
 713      * Since: 2.12
 714      */
 715     g_object_class_install_property (o_class,
 716                                      PROP_SHOW_EXPANDERS,
 717                                      g_param_spec_boolean ("show-expanders",
 718                                                            P_("Show Expanders"),
 719                                                            P_("View has expanders"),
 720                                                            TRUE,
 721                                                            GTK_PARAM_READWRITE));
 722
 723     /**
 724      * GtkTreeView:level-indentation:
 725      *
 726      * Extra indentation for each level.
 727      *
 728      * Since: 2.12
 729      */
 730     g_object_class_install_property (o_class,
 731                                      PROP_LEVEL_INDENTATION,
 732                                      g_param_spec_int ("level-indentation",
 733                                                        P_("Level Indentation"),
 734                                                        P_("Extra indentation for each level"),
 735                                                        0,
 736                                                        G_MAXINT,
 737                                                        0,
 738                                                        GTK_PARAM_READWRITE));
 739
 740     g_object_class_install_property (o_class,
 741                                      PROP_RUBBER_BANDING,
 742                                      g_param_spec_boolean ("rubber-banding",
 743                                                            P_("Rubber Banding"),
 744                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 745                                                            FALSE,
 746                                                            GTK_PARAM_READWRITE));
 747
 748     g_object_class_install_property (o_class,
 749                                      PROP_ENABLE_GRID_LINES,
 750                                      g_param_spec_enum ("enable-grid-lines",
 751                                                         P_("Enable Grid Lines"),
 752                                                         P_("Whether grid lines should be drawn in the tree view"),
 753                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 754                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 755                                                         GTK_PARAM_READWRITE));
 756
 757     g_object_class_install_property (o_class,
 758                                      PROP_ENABLE_TREE_LINES,
 759                                      g_param_spec_boolean ("enable-tree-lines",
 760                                                            P_("Enable Tree Lines"),
 761                                                            P_("Whether tree lines should be drawn in the tree view"),
 762                                                            FALSE,
 763                                                            GTK_PARAM_READWRITE));
 764
 765     g_object_class_install_property (o_class,
 766                                      PROP_TOOLTIP_COLUMN,
 767                                      g_param_spec_int ("tooltip-column",
 768                                                        P_("Tooltip Column"),
 769                                                        P_("The column in the model containing the tooltip texts for the rows"),
 770                                                        -1,
 771                                                        G_MAXINT,
 772                                                        -1,
 773                                                        GTK_PARAM_READWRITE));
 774
 775   /* Style properties */
 776 #define _TREE_VIEW_EXPANDER_SIZE 12
 777 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 778 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 779
 780   gtk_widget_class_install_style_property (widget_class,
 781                                            g_param_spec_int ("expander-size",
 782                                                              P_("Expander Size"),
 783                                                              P_("Size of the expander arrow"),
 784                                                              0,
 785                                                              G_MAXINT,
 786                                                              _TREE_VIEW_EXPANDER_SIZE,
 787                                                              GTK_PARAM_READABLE));
 788
 789   gtk_widget_class_install_style_property (widget_class,
 790                                            g_param_spec_int ("vertical-separator",
 791                                                              P_("Vertical Separator Width"),
 792                                                              P_("Vertical space between cells.  Must be an even number"),
 793                                                              0,
 794                                                              G_MAXINT,
 795                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 796                                                              GTK_PARAM_READABLE));
 797
 798   gtk_widget_class_install_style_property (widget_class,
 799                                            g_param_spec_int ("horizontal-separator",
 800                                                              P_("Horizontal Separator Width"),
 801                                                              P_("Horizontal space between cells.  Must be an even number"),
 802                                                              0,
 803                                                              G_MAXINT,
 804                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 805                                                              GTK_PARAM_READABLE));
 806
 807   gtk_widget_class_install_style_property (widget_class,
 808                                            g_param_spec_boolean ("allow-rules",
 809                                                                  P_("Allow Rules"),
 810                                                                  P_("Allow drawing of alternating color rows"),
 811                                                                  TRUE,
 812                                                                  GTK_PARAM_READABLE));
 813
 814   gtk_widget_class_install_style_property (widget_class,
 815                                            g_param_spec_boolean ("indent-expanders",
 816                                                                  P_("Indent Expanders"),
 817                                                                  P_("Make the expanders indented"),
 818                                                                  TRUE,
 819                                                                  GTK_PARAM_READABLE));
 820
 821   gtk_widget_class_install_style_property (widget_class,
 822                                            g_param_spec_boxed ("even-row-color",
 823                                                                P_("Even Row Color"),
 824                                                                P_("Color to use for even rows"),
 825                                                                GDK_TYPE_COLOR,
 826                                                                GTK_PARAM_READABLE));
 827
 828   gtk_widget_class_install_style_property (widget_class,
 829                                            g_param_spec_boxed ("odd-row-color",
 830                                                                P_("Odd Row Color"),
 831                                                                P_("Color to use for odd rows"),
 832                                                                GDK_TYPE_COLOR,
 833                                                                GTK_PARAM_READABLE));
 834
 835   gtk_widget_class_install_style_property (widget_class,
 836                                            g_param_spec_int ("grid-line-width",
 837                                                              P_("Grid line width"),
 838                                                              P_("Width, in pixels, of the tree view grid lines"),
 839                                                              0, G_MAXINT, 1,
 840                                                              GTK_PARAM_READABLE));
 841
 842   gtk_widget_class_install_style_property (widget_class,
 843                                            g_param_spec_int ("tree-line-width",
 844                                                              P_("Tree line width"),
 845                                                              P_("Width, in pixels, of the tree view lines"),
 846                                                              0, G_MAXINT, 1,
 847                                                              GTK_PARAM_READABLE));
 848
 849   gtk_widget_class_install_style_property (widget_class,
 850                                            g_param_spec_string ("grid-line-pattern",
 851                                                                 P_("Grid line pattern"),
 852                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 853                                                                 "\1\1",
 854                                                                 GTK_PARAM_READABLE));
 855
 856   gtk_widget_class_install_style_property (widget_class,
 857                                            g_param_spec_string ("tree-line-pattern",
 858                                                                 P_("Tree line pattern"),
 859                                                                 P_("Dash pattern used to draw the tree view lines"),
 860                                                                 "\1\1",
 861                                                                 GTK_PARAM_READABLE));
 862
 863   /* Signals */
 864   /**
 865    * GtkTreeView::set-scroll-adjustments
 866    * @horizontal: the horizontal #GtkAdjustment
 867    * @vertical: the vertical #GtkAdjustment
 868    *
 869    * Set the scroll adjustments for the tree view. Usually scrolled containers
 870    * like #GtkScrolledWindow will emit this signal to connect two instances
 871    * of #GtkScrollbar to the scroll directions of the #GtkTreeView.
 872    */
 873   widget_class->set_scroll_adjustments_signal =
 874     g_signal_new (I_("set-scroll-adjustments"),
 875                   G_TYPE_FROM_CLASS (o_class),
 876                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 877                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 878                   NULL, NULL,
 879                   _gtk_marshal_VOID__OBJECT_OBJECT,
 880                   G_TYPE_NONE, 2,
 881                   GTK_TYPE_ADJUSTMENT,
 882                   GTK_TYPE_ADJUSTMENT);
 883
 884   /**
 885    * GtkTreeView::row-activated:
 886    * @tree_view: the object on which the signal is emitted
 887    * @path: the #GtkTreePath for the activated row
 888    * @column: the #GtkTreeViewColumn in which the activation occurred
 889    *
 890    * The "row-activated" signal is emitted when the method
 891    * gtk_tree_view_row_activated() is called or the user double clicks
 892    * a treeview row. It is also emitted when a non-editable row is
 893    * selected and one of the keys: Space, Shift+Space, Return or
 894    * Enter is pressed.
 895    *
 896    * For selection handling refer to the <link linkend="TreeWidget">tree
 897    * widget conceptual overview</link> as well as #GtkTreeSelection.
 898    */
 899   tree_view_signals[ROW_ACTIVATED] =
 900     g_signal_new (I_("row-activated"),
 901                   G_TYPE_FROM_CLASS (o_class),
 902                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 903                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 904                   NULL, NULL,
 905                   _gtk_marshal_VOID__BOXED_OBJECT,
 906                   G_TYPE_NONE, 2,
 907                   GTK_TYPE_TREE_PATH,
 908                   GTK_TYPE_TREE_VIEW_COLUMN);
 909
 910   /**
 911    * GtkTreeView::test-expand-row:
 912    * @tree_view: the object on which the signal is emitted
 913    * @iter: the tree iter of the row to expand
 914    * @path: a tree path that points to the row
 915    *
 916    * The given row is about to be expanded (show its children nodes). Use this
 917    * signal if you need to control the expandability of individual rows.
 918    *
 919    * Returns: %FALSE to allow expansion, %TRUE to reject
 920    */
 921   tree_view_signals[TEST_EXPAND_ROW] =
 922     g_signal_new (I_("test-expand-row"),
 923                   G_TYPE_FROM_CLASS (o_class),
 924                   G_SIGNAL_RUN_LAST,
 925                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 926                   _gtk_boolean_handled_accumulator, NULL,
 927                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 928                   G_TYPE_BOOLEAN, 2,
 929                   GTK_TYPE_TREE_ITER,
 930                   GTK_TYPE_TREE_PATH);
 931
 932   /**
 933    * GtkTreeView::test-collapse-row:
 934    * @tree_view: the object on which the signal is emitted
 935    * @iter: the tree iter of the row to collapse
 936    * @path: a tree path that points to the row
 937    *
 938    * The given row is about to be collapsed (hide its children nodes). Use this
 939    * signal if you need to control the collapsibility of individual rows.
 940    *
 941    * Returns: %FALSE to allow collapsing, %TRUE to reject
 942    */
 943   tree_view_signals[TEST_COLLAPSE_ROW] =
 944     g_signal_new (I_("test-collapse-row"),
 945                   G_TYPE_FROM_CLASS (o_class),
 946                   G_SIGNAL_RUN_LAST,
 947                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 948                   _gtk_boolean_handled_accumulator, NULL,
 949                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 950                   G_TYPE_BOOLEAN, 2,
 951                   GTK_TYPE_TREE_ITER,
 952                   GTK_TYPE_TREE_PATH);
 953
 954   /**
 955    * GtkTreeView::row-expanded:
 956    * @tree_view: the object on which the signal is emitted
 957    * @iter: the tree iter of the expanded row
 958    * @path: a tree path that points to the row
 959    *
 960    * The given row has been expanded (child nodes are shown).
 961    */
 962   tree_view_signals[ROW_EXPANDED] =
 963     g_signal_new (I_("row-expanded"),
 964                   G_TYPE_FROM_CLASS (o_class),
 965                   G_SIGNAL_RUN_LAST,
 966                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 967                   NULL, NULL,
 968                   _gtk_marshal_VOID__BOXED_BOXED,
 969                   G_TYPE_NONE, 2,
 970                   GTK_TYPE_TREE_ITER,
 971                   GTK_TYPE_TREE_PATH);
 972
 973   /**
 974    * GtkTreeView::row-collapsed:
 975    * @tree_view: the object on which the signal is emitted
 976    * @iter: the tree iter of the collapsed row
 977    * @path: a tree path that points to the row
 978    *
 979    * The given row has been collapsed (child nodes are hidden).
 980    */
 981   tree_view_signals[ROW_COLLAPSED] =
 982     g_signal_new (I_("row-collapsed"),
 983                   G_TYPE_FROM_CLASS (o_class),
 984                   G_SIGNAL_RUN_LAST,
 985                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 986                   NULL, NULL,
 987                   _gtk_marshal_VOID__BOXED_BOXED,
 988                   G_TYPE_NONE, 2,
 989                   GTK_TYPE_TREE_ITER,
 990                   GTK_TYPE_TREE_PATH);
 991
 992   /**
 993    * GtkTreeView::columns-changed:
 994    * @tree_view: the object on which the signal is emitted
 995    *
 996    * The number of columns of the treeview has changed.
 997    */
 998   tree_view_signals[COLUMNS_CHANGED] =
 999     g_signal_new (I_("columns-changed"),
1000                   G_TYPE_FROM_CLASS (o_class),
1001                   G_SIGNAL_RUN_LAST,
1002                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
1003                   NULL, NULL,
1004                   _gtk_marshal_VOID__VOID,
1005                   G_TYPE_NONE, 0);
1006
1007   /**
1008    * GtkTreeView::cursor-changed:
1009    * @tree_view: the object on which the signal is emitted
1010    *
1011    * The position of the cursor (focused cell) has changed.
1012    */
1013   tree_view_signals[CURSOR_CHANGED] =
1014     g_signal_new (I_("cursor-changed"),
1015                   G_TYPE_FROM_CLASS (o_class),
1016                   G_SIGNAL_RUN_LAST,
1017                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1018                   NULL, NULL,
1019                   _gtk_marshal_VOID__VOID,
1020                   G_TYPE_NONE, 0);
1021
1022   tree_view_signals[MOVE_CURSOR] =
1023     g_signal_new (I_("move-cursor"),
1024                   G_TYPE_FROM_CLASS (object_class),
1025                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1026                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1027                   NULL, NULL,
1028                   _gtk_marshal_BOOLEAN__ENUM_INT,
1029                   G_TYPE_BOOLEAN, 2,
1030                   GTK_TYPE_MOVEMENT_STEP,
1031                   G_TYPE_INT);
1032
1033   tree_view_signals[SELECT_ALL] =
1034     g_signal_new (I_("select-all"),
1035                   G_TYPE_FROM_CLASS (object_class),
1036                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1037                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1038                   NULL, NULL,
1039                   _gtk_marshal_BOOLEAN__VOID,
1040                   G_TYPE_BOOLEAN, 0);
1041
1042   tree_view_signals[UNSELECT_ALL] =
1043     g_signal_new (I_("unselect-all"),
1044                   G_TYPE_FROM_CLASS (object_class),
1045                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1046                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1047                   NULL, NULL,
1048                   _gtk_marshal_BOOLEAN__VOID,
1049                   G_TYPE_BOOLEAN, 0);
1050
1051   tree_view_signals[SELECT_CURSOR_ROW] =
1052     g_signal_new (I_("select-cursor-row"),
1053                   G_TYPE_FROM_CLASS (object_class),
1054                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1055                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1056                   NULL, NULL,
1057                   _gtk_marshal_BOOLEAN__BOOLEAN,
1058                   G_TYPE_BOOLEAN, 1,
1059                   G_TYPE_BOOLEAN);
1060
1061   tree_view_signals[TOGGLE_CURSOR_ROW] =
1062     g_signal_new (I_("toggle-cursor-row"),
1063                   G_TYPE_FROM_CLASS (object_class),
1064                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1065                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1066                   NULL, NULL,
1067                   _gtk_marshal_BOOLEAN__VOID,
1068                   G_TYPE_BOOLEAN, 0);
1069
1070   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1071     g_signal_new (I_("expand-collapse-cursor-row"),
1072                   G_TYPE_FROM_CLASS (object_class),
1073                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1074                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1075                   NULL, NULL,
1076                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1077                   G_TYPE_BOOLEAN, 3,
1078                   G_TYPE_BOOLEAN,
1079                   G_TYPE_BOOLEAN,
1080                   G_TYPE_BOOLEAN);
1081
1082   tree_view_signals[SELECT_CURSOR_PARENT] =
1083     g_signal_new (I_("select-cursor-parent"),
1084                   G_TYPE_FROM_CLASS (object_class),
1085                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1086                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1087                   NULL, NULL,
1088                   _gtk_marshal_BOOLEAN__VOID,
1089                   G_TYPE_BOOLEAN, 0);
1090
1091   tree_view_signals[START_INTERACTIVE_SEARCH] =
1092     g_signal_new (I_("start-interactive-search"),
1093                   G_TYPE_FROM_CLASS (object_class),
1094                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1095                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1096                   NULL, NULL,
1097                   _gtk_marshal_BOOLEAN__VOID,
1098                   G_TYPE_BOOLEAN, 0);
1099
1100   /* Key bindings */
1101   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Up, 0, TRUE,
1102                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1103   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Up, 0, TRUE,
1104                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1105
1106   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Down, 0, TRUE,
1107                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1108   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Down, 0, TRUE,
1109                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1110
1111   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_p, GDK_CONTROL_MASK, FALSE,
1112                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1113
1114   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_n, GDK_CONTROL_MASK, FALSE,
1115                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1116
1117   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Home, 0, TRUE,
1118                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1119   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Home, 0, TRUE,
1120                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1121
1122   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_End, 0, TRUE,
1123                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1124   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_End, 0, TRUE,
1125                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1126
1127   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Up, 0, TRUE,
1128                                   GTK_MOVEMENT_PAGES, -1);
1129   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, TRUE,
1130                                   GTK_MOVEMENT_PAGES, -1);
1131
1132   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Down, 0, TRUE,
1133                                   GTK_MOVEMENT_PAGES, 1);
1134   gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, TRUE,
1135                                   GTK_MOVEMENT_PAGES, 1);
1136
1137
1138   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, 0, "move-cursor", 2,
1139                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1140                                 G_TYPE_INT, 1);
1141
1142   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, 0, "move-cursor", 2,
1143                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1144                                 G_TYPE_INT, -1);
1145
1146   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, 0, "move-cursor", 2,
1147                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1148                                 G_TYPE_INT, 1);
1149
1150   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, 0, "move-cursor", 2,
1151                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1152                                 G_TYPE_INT, -1);
1153
1154   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
1155                                 "move-cursor", 2,
1156                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1157                                 G_TYPE_INT, 1);
1158
1159   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
1160                                 "move-cursor", 2,
1161                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1162                                 G_TYPE_INT, -1);
1163
1164   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
1165                                 "move-cursor", 2,
1166                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1167                                 G_TYPE_INT, 1);
1168
1169   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
1170                                 "move-cursor", 2,
1171                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1172                                 G_TYPE_INT, -1);
1173
1174   gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1175   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1176
1177   gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 0);
1178   gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "select-all", 0);
1179
1180   gtk_binding_entry_add_signal (binding_set, GDK_KEY_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
1181   gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
1182
1183   gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1184                                 G_TYPE_BOOLEAN, TRUE);
1185   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1186                                 G_TYPE_BOOLEAN, TRUE);
1187
1188   gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0, "select-cursor-row", 1,
1189                                 G_TYPE_BOOLEAN, TRUE);
1190   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0, "select-cursor-row", 1,
1191                                 G_TYPE_BOOLEAN, TRUE);
1192   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0, "select-cursor-row", 1,
1193                                 G_TYPE_BOOLEAN, TRUE);
1194   gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0, "select-cursor-row", 1,
1195                                 G_TYPE_BOOLEAN, TRUE);
1196   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0, "select-cursor-row", 1,
1197                                 G_TYPE_BOOLEAN, TRUE);
1198
1199   /* expand and collapse rows */
1200   gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, 0, "expand-collapse-cursor-row", 3,
1201                                 G_TYPE_BOOLEAN, TRUE,
1202                                 G_TYPE_BOOLEAN, TRUE,
1203                                 G_TYPE_BOOLEAN, FALSE);
1204
1205   gtk_binding_entry_add_signal (binding_set, GDK_KEY_asterisk, 0,
1206                                 "expand-collapse-cursor-row", 3,
1207                                 G_TYPE_BOOLEAN, TRUE,
1208                                 G_TYPE_BOOLEAN, TRUE,
1209                                 G_TYPE_BOOLEAN, TRUE);
1210   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Multiply, 0,
1211                                 "expand-collapse-cursor-row", 3,
1212                                 G_TYPE_BOOLEAN, TRUE,
1213                                 G_TYPE_BOOLEAN, TRUE,
1214                                 G_TYPE_BOOLEAN, TRUE);
1215
1216   gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, 0,
1217                                 "expand-collapse-cursor-row", 3,
1218                                 G_TYPE_BOOLEAN, TRUE,
1219                                 G_TYPE_BOOLEAN, FALSE,
1220                                 G_TYPE_BOOLEAN, FALSE);
1221   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Divide, 0,
1222                                 "expand-collapse-cursor-row", 3,
1223                                 G_TYPE_BOOLEAN, TRUE,
1224                                 G_TYPE_BOOLEAN, FALSE,
1225                                 G_TYPE_BOOLEAN, FALSE);
1226
1227   /* Not doable on US keyboards */
1228   gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1229                                 G_TYPE_BOOLEAN, TRUE,
1230                                 G_TYPE_BOOLEAN, TRUE,
1231                                 G_TYPE_BOOLEAN, TRUE);
1232   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, 0, "expand-collapse-cursor-row", 3,
1233                                 G_TYPE_BOOLEAN, TRUE,
1234                                 G_TYPE_BOOLEAN, TRUE,
1235                                 G_TYPE_BOOLEAN, FALSE);
1236   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1237                                 G_TYPE_BOOLEAN, TRUE,
1238                                 G_TYPE_BOOLEAN, TRUE,
1239                                 G_TYPE_BOOLEAN, TRUE);
1240   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1241                                 G_TYPE_BOOLEAN, TRUE,
1242                                 G_TYPE_BOOLEAN, TRUE,
1243                                 G_TYPE_BOOLEAN, TRUE);
1244   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_SHIFT_MASK,
1245                                 "expand-collapse-cursor-row", 3,
1246                                 G_TYPE_BOOLEAN, FALSE,
1247                                 G_TYPE_BOOLEAN, TRUE,
1248                                 G_TYPE_BOOLEAN, TRUE);
1249   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_SHIFT_MASK,
1250                                 "expand-collapse-cursor-row", 3,
1251                                 G_TYPE_BOOLEAN, FALSE,
1252                                 G_TYPE_BOOLEAN, TRUE,
1253                                 G_TYPE_BOOLEAN, TRUE);
1254   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right,
1255                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1256                                 "expand-collapse-cursor-row", 3,
1257                                 G_TYPE_BOOLEAN, FALSE,
1258                                 G_TYPE_BOOLEAN, TRUE,
1259                                 G_TYPE_BOOLEAN, TRUE);
1260   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right,
1261                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1262                                 "expand-collapse-cursor-row", 3,
1263                                 G_TYPE_BOOLEAN, FALSE,
1264                                 G_TYPE_BOOLEAN, TRUE,
1265                                 G_TYPE_BOOLEAN, TRUE);
1266
1267   gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, 0, "expand-collapse-cursor-row", 3,
1268                                 G_TYPE_BOOLEAN, TRUE,
1269                                 G_TYPE_BOOLEAN, FALSE,
1270                                 G_TYPE_BOOLEAN, FALSE);
1271   gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1272                                 G_TYPE_BOOLEAN, TRUE,
1273                                 G_TYPE_BOOLEAN, FALSE,
1274                                 G_TYPE_BOOLEAN, TRUE);
1275   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
1276                                 G_TYPE_BOOLEAN, TRUE,
1277                                 G_TYPE_BOOLEAN, FALSE,
1278                                 G_TYPE_BOOLEAN, FALSE);
1279   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1280                                 G_TYPE_BOOLEAN, TRUE,
1281                                 G_TYPE_BOOLEAN, FALSE,
1282                                 G_TYPE_BOOLEAN, TRUE);
1283   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_SHIFT_MASK,
1284                                 "expand-collapse-cursor-row", 3,
1285                                 G_TYPE_BOOLEAN, FALSE,
1286                                 G_TYPE_BOOLEAN, FALSE,
1287                                 G_TYPE_BOOLEAN, TRUE);
1288   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_SHIFT_MASK,
1289                                 "expand-collapse-cursor-row", 3,
1290                                 G_TYPE_BOOLEAN, FALSE,
1291                                 G_TYPE_BOOLEAN, FALSE,
1292                                 G_TYPE_BOOLEAN, TRUE);
1293   gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left,
1294                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1295                                 "expand-collapse-cursor-row", 3,
1296                                 G_TYPE_BOOLEAN, FALSE,
1297                                 G_TYPE_BOOLEAN, FALSE,
1298                                 G_TYPE_BOOLEAN, TRUE);
1299   gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left,
1300                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1301                                 "expand-collapse-cursor-row", 3,
1302                                 G_TYPE_BOOLEAN, FALSE,
1303                                 G_TYPE_BOOLEAN, FALSE,
1304                                 G_TYPE_BOOLEAN, TRUE);
1305
1306   gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "select-cursor-parent", 0);
1307   gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
1308
1309   gtk_binding_entry_add_signal (binding_set, GDK_KEY_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
1310
1311   gtk_binding_entry_add_signal (binding_set, GDK_KEY_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
1312
1313   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1314 }
1315
1316 static void
1317 gtk_tree_view_init (GtkTreeView *tree_view)
1318 {
1319   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1320
1321   gtk_widget_set_can_focus (GTK_WIDGET (tree_view), TRUE);
1322   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1323
1324   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1325                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1326                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1327
1328   /* We need some padding */
1329   tree_view->priv->dy = 0;
1330   tree_view->priv->cursor_offset = 0;
1331   tree_view->priv->n_columns = 0;
1332   tree_view->priv->header_height = 1;
1333   tree_view->priv->x_drag = 0;
1334   tree_view->priv->drag_pos = -1;
1335   tree_view->priv->header_has_focus = FALSE;
1336   tree_view->priv->pressed_button = -1;
1337   tree_view->priv->press_start_x = -1;
1338   tree_view->priv->press_start_y = -1;
1339   tree_view->priv->reorderable = FALSE;
1340   tree_view->priv->presize_handler_timer = 0;
1341   tree_view->priv->scroll_sync_timer = 0;
1342   tree_view->priv->fixed_height = -1;
1343   tree_view->priv->fixed_height_mode = FALSE;
1344   tree_view->priv->fixed_height_check = 0;
1345   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1346   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1347   tree_view->priv->enable_search = TRUE;
1348   tree_view->priv->search_column = -1;
1349   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1350   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1351   tree_view->priv->search_custom_entry_set = FALSE;
1352   tree_view->priv->typeselect_flush_timeout = 0;
1353   tree_view->priv->init_hadjust_value = TRUE;
1354   tree_view->priv->width = 0;
1355
1356   tree_view->priv->hover_selection = FALSE;
1357   tree_view->priv->hover_expand = FALSE;
1358
1359   tree_view->priv->level_indentation = 0;
1360
1361   tree_view->priv->rubber_banding_enable = FALSE;
1362
1363   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1364   tree_view->priv->tree_lines_enabled = FALSE;
1365
1366   tree_view->priv->tooltip_column = -1;
1367
1368   tree_view->priv->post_validation_flag = FALSE;
1369
1370   tree_view->priv->last_button_x = -1;
1371   tree_view->priv->last_button_y = -1;
1372
1373   tree_view->priv->event_last_x = -10000;
1374   tree_view->priv->event_last_y = -10000;
1375 }
1376
1377 \f
1378
1379 /* GObject Methods
1380  */
1381
1382 static void
1383 gtk_tree_view_set_property (GObject         *object,
1384                             guint            prop_id,
1385                             const GValue    *value,
1386                             GParamSpec      *pspec)
1387 {
1388   GtkTreeView *tree_view;
1389
1390   tree_view = GTK_TREE_VIEW (object);
1391
1392   switch (prop_id)
1393     {
1394     case PROP_MODEL:
1395       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1396       break;
1397     case PROP_HADJUSTMENT:
1398       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1399       break;
1400     case PROP_VADJUSTMENT:
1401       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1402       break;
1403     case PROP_HEADERS_VISIBLE:
1404       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1405       break;
1406     case PROP_HEADERS_CLICKABLE:
1407       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1408       break;
1409     case PROP_EXPANDER_COLUMN:
1410       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1411       break;
1412     case PROP_REORDERABLE:
1413       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1414       break;
1415     case PROP_RULES_HINT:
1416       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1417       break;
1418     case PROP_ENABLE_SEARCH:
1419       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1420       break;
1421     case PROP_SEARCH_COLUMN:
1422       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1423       break;
1424     case PROP_FIXED_HEIGHT_MODE:
1425       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1426       break;
1427     case PROP_HOVER_SELECTION:
1428       tree_view->priv->hover_selection = g_value_get_boolean (value);
1429       break;
1430     case PROP_HOVER_EXPAND:
1431       tree_view->priv->hover_expand = g_value_get_boolean (value);
1432       break;
1433     case PROP_SHOW_EXPANDERS:
1434       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1435       break;
1436     case PROP_LEVEL_INDENTATION:
1437       tree_view->priv->level_indentation = g_value_get_int (value);
1438       break;
1439     case PROP_RUBBER_BANDING:
1440       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1441       break;
1442     case PROP_ENABLE_GRID_LINES:
1443       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1444       break;
1445     case PROP_ENABLE_TREE_LINES:
1446       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1447       break;
1448     case PROP_TOOLTIP_COLUMN:
1449       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1450       break;
1451     default:
1452       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1453       break;
1454     }
1455 }
1456
1457 static void
1458 gtk_tree_view_get_property (GObject    *object,
1459                             guint       prop_id,
1460                             GValue     *value,
1461                             GParamSpec *pspec)
1462 {
1463   GtkTreeView *tree_view;
1464
1465   tree_view = GTK_TREE_VIEW (object);
1466
1467   switch (prop_id)
1468     {
1469     case PROP_MODEL:
1470       g_value_set_object (value, tree_view->priv->model);
1471       break;
1472     case PROP_HADJUSTMENT:
1473       g_value_set_object (value, tree_view->priv->hadjustment);
1474       break;
1475     case PROP_VADJUSTMENT:
1476       g_value_set_object (value, tree_view->priv->vadjustment);
1477       break;
1478     case PROP_HEADERS_VISIBLE:
1479       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1480       break;
1481     case PROP_HEADERS_CLICKABLE:
1482       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1483       break;
1484     case PROP_EXPANDER_COLUMN:
1485       g_value_set_object (value, tree_view->priv->expander_column);
1486       break;
1487     case PROP_REORDERABLE:
1488       g_value_set_boolean (value, tree_view->priv->reorderable);
1489       break;
1490     case PROP_RULES_HINT:
1491       g_value_set_boolean (value, tree_view->priv->has_rules);
1492       break;
1493     case PROP_ENABLE_SEARCH:
1494       g_value_set_boolean (value, tree_view->priv->enable_search);
1495       break;
1496     case PROP_SEARCH_COLUMN:
1497       g_value_set_int (value, tree_view->priv->search_column);
1498       break;
1499     case PROP_FIXED_HEIGHT_MODE:
1500       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1501       break;
1502     case PROP_HOVER_SELECTION:
1503       g_value_set_boolean (value, tree_view->priv->hover_selection);
1504       break;
1505     case PROP_HOVER_EXPAND:
1506       g_value_set_boolean (value, tree_view->priv->hover_expand);
1507       break;
1508     case PROP_SHOW_EXPANDERS:
1509       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1510       break;
1511     case PROP_LEVEL_INDENTATION:
1512       g_value_set_int (value, tree_view->priv->level_indentation);
1513       break;
1514     case PROP_RUBBER_BANDING:
1515       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1516       break;
1517     case PROP_ENABLE_GRID_LINES:
1518       g_value_set_enum (value, tree_view->priv->grid_lines);
1519       break;
1520     case PROP_ENABLE_TREE_LINES:
1521       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1522       break;
1523     case PROP_TOOLTIP_COLUMN:
1524       g_value_set_int (value, tree_view->priv->tooltip_column);
1525       break;
1526     default:
1527       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1528       break;
1529     }
1530 }
1531
1532 static void
1533 gtk_tree_view_finalize (GObject *object)
1534 {
1535   G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
1536 }
1537
1538
1539 static GtkBuildableIface *parent_buildable_iface;
1540
1541 static void
1542 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1543 {
1544   parent_buildable_iface = g_type_interface_peek_parent (iface);
1545   iface->add_child = gtk_tree_view_buildable_add_child;
1546   iface->get_internal_child = gtk_tree_view_buildable_get_internal_child;
1547 }
1548
1549 static void
1550 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1551                                    GtkBuilder  *builder,
1552                                    GObject     *child,
1553                                    const gchar *type)
1554 {
1555   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1556 }
1557
1558 static GObject *
1559 gtk_tree_view_buildable_get_internal_child (GtkBuildable      *buildable,
1560                                             GtkBuilder        *builder,
1561                                             const gchar       *childname)
1562 {
1563     if (strcmp (childname, "selection") == 0)
1564       return G_OBJECT (GTK_TREE_VIEW (buildable)->priv->selection);
1565
1566     return parent_buildable_iface->get_internal_child (buildable,
1567                                                        builder,
1568                                                        childname);
1569 }
1570
1571 /* GtkObject Methods
1572  */
1573
1574 static void
1575 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1576 {
1577   _gtk_rbtree_free (tree_view->priv->tree);
1578
1579   tree_view->priv->tree = NULL;
1580   tree_view->priv->button_pressed_node = NULL;
1581   tree_view->priv->button_pressed_tree = NULL;
1582   tree_view->priv->prelight_tree = NULL;
1583   tree_view->priv->prelight_node = NULL;
1584   tree_view->priv->expanded_collapsed_node = NULL;
1585   tree_view->priv->expanded_collapsed_tree = NULL;
1586 }
1587
1588 static void
1589 gtk_tree_view_destroy (GtkObject *object)
1590 {
1591   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1592   GList *list;
1593
1594   gtk_tree_view_stop_editing (tree_view, TRUE);
1595
1596   if (tree_view->priv->columns != NULL)
1597     {
1598       list = tree_view->priv->columns;
1599       while (list)
1600         {
1601           GtkTreeViewColumn *column;
1602           column = GTK_TREE_VIEW_COLUMN (list->data);
1603           list = list->next;
1604           gtk_tree_view_remove_column (tree_view, column);
1605         }
1606       tree_view->priv->columns = NULL;
1607     }
1608
1609   if (tree_view->priv->tree != NULL)
1610     {
1611       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1612
1613       gtk_tree_view_free_rbtree (tree_view);
1614     }
1615
1616   if (tree_view->priv->selection != NULL)
1617     {
1618       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1619       g_object_unref (tree_view->priv->selection);
1620       tree_view->priv->selection = NULL;
1621     }
1622
1623   if (tree_view->priv->scroll_to_path != NULL)
1624     {
1625       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1626       tree_view->priv->scroll_to_path = NULL;
1627     }
1628
1629   if (tree_view->priv->drag_dest_row != NULL)
1630     {
1631       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1632       tree_view->priv->drag_dest_row = NULL;
1633     }
1634
1635   if (tree_view->priv->top_row != NULL)
1636     {
1637       gtk_tree_row_reference_free (tree_view->priv->top_row);
1638       tree_view->priv->top_row = NULL;
1639     }
1640
1641   if (tree_view->priv->column_drop_func_data &&
1642       tree_view->priv->column_drop_func_data_destroy)
1643     {
1644       tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
1645       tree_view->priv->column_drop_func_data = NULL;
1646     }
1647
1648   if (tree_view->priv->destroy_count_destroy &&
1649       tree_view->priv->destroy_count_data)
1650     {
1651       tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
1652       tree_view->priv->destroy_count_data = NULL;
1653     }
1654
1655   gtk_tree_row_reference_free (tree_view->priv->cursor);
1656   tree_view->priv->cursor = NULL;
1657
1658   gtk_tree_row_reference_free (tree_view->priv->anchor);
1659   tree_view->priv->anchor = NULL;
1660
1661   /* destroy interactive search dialog */
1662   if (tree_view->priv->search_window)
1663     {
1664       gtk_widget_destroy (tree_view->priv->search_window);
1665       tree_view->priv->search_window = NULL;
1666       tree_view->priv->search_entry = NULL;
1667       if (tree_view->priv->typeselect_flush_timeout)
1668         {
1669           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1670           tree_view->priv->typeselect_flush_timeout = 0;
1671         }
1672     }
1673
1674   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1675     {
1676       tree_view->priv->search_destroy (tree_view->priv->search_user_data);
1677       tree_view->priv->search_user_data = NULL;
1678     }
1679
1680   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1681     {
1682       tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
1683       tree_view->priv->search_position_user_data = NULL;
1684     }
1685
1686   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1687     {
1688       tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
1689       tree_view->priv->row_separator_data = NULL;
1690     }
1691
1692   gtk_tree_view_set_model (tree_view, NULL);
1693
1694   if (tree_view->priv->hadjustment)
1695     {
1696       g_object_unref (tree_view->priv->hadjustment);
1697       tree_view->priv->hadjustment = NULL;
1698     }
1699   if (tree_view->priv->vadjustment)
1700     {
1701       g_object_unref (tree_view->priv->vadjustment);
1702       tree_view->priv->vadjustment = NULL;
1703     }
1704
1705   GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy (object);
1706 }
1707
1708 \f
1709
1710 /* GtkWidget Methods
1711  */
1712
1713 /* GtkWidget::map helper */
1714 static void
1715 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1716 {
1717   GList *list;
1718
1719   g_return_if_fail (gtk_widget_get_mapped (GTK_WIDGET (tree_view)));
1720
1721   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1722     {
1723       GtkTreeViewColumn *column;
1724
1725       for (list = tree_view->priv->columns; list; list = list->next)
1726         {
1727           column = list->data;
1728           if (gtk_widget_get_visible (column->button) &&
1729               !gtk_widget_get_mapped (column->button))
1730             gtk_widget_map (column->button);
1731         }
1732       for (list = tree_view->priv->columns; list; list = list->next)
1733         {
1734           column = list->data;
1735           if (column->visible == FALSE)
1736             continue;
1737           if (column->resizable)
1738             {
1739               gdk_window_raise (column->window);
1740               gdk_window_show (column->window);
1741             }
1742           else
1743             gdk_window_hide (column->window);
1744         }
1745       gdk_window_show (tree_view->priv->header_window);
1746     }
1747 }
1748
1749 static void
1750 gtk_tree_view_map (GtkWidget *widget)
1751 {
1752   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1753   GList *tmp_list;
1754
1755   gtk_widget_set_mapped (widget, TRUE);
1756
1757   tmp_list = tree_view->priv->children;
1758   while (tmp_list)
1759     {
1760       GtkTreeViewChild *child = tmp_list->data;
1761       tmp_list = tmp_list->next;
1762
1763       if (gtk_widget_get_visible (child->widget))
1764         {
1765           if (!gtk_widget_get_mapped (child->widget))
1766             gtk_widget_map (child->widget);
1767         }
1768     }
1769   gdk_window_show (tree_view->priv->bin_window);
1770
1771   gtk_tree_view_map_buttons (tree_view);
1772
1773   gdk_window_show (gtk_widget_get_window (widget));
1774 }
1775
1776 static void
1777 gtk_tree_view_realize (GtkWidget *widget)
1778 {
1779   GtkAllocation allocation;
1780   GtkStyle *style;
1781   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1782   GdkWindow *window;
1783   GdkWindowAttr attributes;
1784   GList *tmp_list;
1785   gint attributes_mask;
1786
1787   gtk_widget_set_realized (widget, TRUE);
1788
1789   gtk_widget_get_allocation (widget, &allocation);
1790
1791   /* Make the main, clipping window */
1792   attributes.window_type = GDK_WINDOW_CHILD;
1793   attributes.x = allocation.x;
1794   attributes.y = allocation.y;
1795   attributes.width = allocation.width;
1796   attributes.height = allocation.height;
1797   attributes.wclass = GDK_INPUT_OUTPUT;
1798   attributes.visual = gtk_widget_get_visual (widget);
1799   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1800
1801   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
1802
1803   window = gdk_window_new (gtk_widget_get_parent_window (widget),
1804                            &attributes, attributes_mask);
1805   gtk_widget_set_window (widget, window);
1806   gdk_window_set_user_data (window, widget);
1807
1808   gtk_widget_get_allocation (widget, &allocation);
1809
1810   /* Make the window for the tree */
1811   attributes.x = 0;
1812   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1813   attributes.width = MAX (tree_view->priv->width, allocation.width);
1814   attributes.height = allocation.height;
1815   attributes.event_mask = (GDK_EXPOSURE_MASK |
1816                            GDK_SCROLL_MASK |
1817                            GDK_POINTER_MOTION_MASK |
1818                            GDK_ENTER_NOTIFY_MASK |
1819                            GDK_LEAVE_NOTIFY_MASK |
1820                            GDK_BUTTON_PRESS_MASK |
1821                            GDK_BUTTON_RELEASE_MASK |
1822                            gtk_widget_get_events (widget));
1823
1824   tree_view->priv->bin_window = gdk_window_new (window,
1825                                                 &attributes, attributes_mask);
1826   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1827
1828   gtk_widget_get_allocation (widget, &allocation);
1829
1830   /* Make the column header window */
1831   attributes.x = 0;
1832   attributes.y = 0;
1833   attributes.width = MAX (tree_view->priv->width, allocation.width);
1834   attributes.height = tree_view->priv->header_height;
1835   attributes.event_mask = (GDK_EXPOSURE_MASK |
1836                            GDK_SCROLL_MASK |
1837                            GDK_ENTER_NOTIFY_MASK |
1838                            GDK_LEAVE_NOTIFY_MASK |
1839                            GDK_BUTTON_PRESS_MASK |
1840                            GDK_BUTTON_RELEASE_MASK |
1841                            GDK_KEY_PRESS_MASK |
1842                            GDK_KEY_RELEASE_MASK |
1843                            gtk_widget_get_events (widget));
1844
1845   tree_view->priv->header_window = gdk_window_new (window,
1846                                                    &attributes, attributes_mask);
1847   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1848
1849   /* Add them all up. */
1850   gtk_widget_style_attach (widget);
1851   style = gtk_widget_get_style (widget);
1852   gdk_window_set_background (tree_view->priv->bin_window,
1853                              &style->base[gtk_widget_get_state (widget)]);
1854   gtk_style_set_background (style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1855
1856   tmp_list = tree_view->priv->children;
1857   while (tmp_list)
1858     {
1859       GtkTreeViewChild *child = tmp_list->data;
1860       tmp_list = tmp_list->next;
1861
1862       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1863     }
1864
1865   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1866     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1867
1868   /* Need to call those here, since they create GCs */
1869   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1870   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1871
1872   install_presize_handler (tree_view);
1873 }
1874
1875 static void
1876 gtk_tree_view_unrealize (GtkWidget *widget)
1877 {
1878   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1879   GtkTreeViewPrivate *priv = tree_view->priv;
1880   GList *list;
1881
1882   if (priv->scroll_timeout != 0)
1883     {
1884       g_source_remove (priv->scroll_timeout);
1885       priv->scroll_timeout = 0;
1886     }
1887
1888   if (priv->auto_expand_timeout != 0)
1889     {
1890       g_source_remove (priv->auto_expand_timeout);
1891       priv->auto_expand_timeout = 0;
1892     }
1893
1894   if (priv->open_dest_timeout != 0)
1895     {
1896       g_source_remove (priv->open_dest_timeout);
1897       priv->open_dest_timeout = 0;
1898     }
1899
1900   remove_expand_collapse_timeout (tree_view);
1901
1902   if (priv->presize_handler_timer != 0)
1903     {
1904       g_source_remove (priv->presize_handler_timer);
1905       priv->presize_handler_timer = 0;
1906     }
1907
1908   if (priv->validate_rows_timer != 0)
1909     {
1910       g_source_remove (priv->validate_rows_timer);
1911       priv->validate_rows_timer = 0;
1912     }
1913
1914   if (priv->scroll_sync_timer != 0)
1915     {
1916       g_source_remove (priv->scroll_sync_timer);
1917       priv->scroll_sync_timer = 0;
1918     }
1919
1920   if (priv->typeselect_flush_timeout)
1921     {
1922       g_source_remove (priv->typeselect_flush_timeout);
1923       priv->typeselect_flush_timeout = 0;
1924     }
1925
1926   for (list = priv->columns; list; list = list->next)
1927     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1928
1929   gdk_window_set_user_data (priv->bin_window, NULL);
1930   gdk_window_destroy (priv->bin_window);
1931   priv->bin_window = NULL;
1932
1933   gdk_window_set_user_data (priv->header_window, NULL);
1934   gdk_window_destroy (priv->header_window);
1935   priv->header_window = NULL;
1936
1937   if (priv->drag_window)
1938     {
1939       gdk_window_set_user_data (priv->drag_window, NULL);
1940       gdk_window_destroy (priv->drag_window);
1941       priv->drag_window = NULL;
1942     }
1943
1944   if (priv->drag_highlight_window)
1945     {
1946       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1947       gdk_window_destroy (priv->drag_highlight_window);
1948       priv->drag_highlight_window = NULL;
1949     }
1950
1951   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
1952 }
1953
1954 /* GtkWidget::size_request helper */
1955 static void
1956 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1957 {
1958   GList *list;
1959
1960   tree_view->priv->header_height = 0;
1961
1962   if (tree_view->priv->model)
1963     {
1964       for (list = tree_view->priv->columns; list; list = list->next)
1965         {
1966           GtkRequisition requisition;
1967           GtkTreeViewColumn *column = list->data;
1968
1969           if (column->button == NULL)
1970             continue;
1971
1972           column = list->data;
1973
1974           gtk_size_request_get_size (GTK_SIZE_REQUEST (column->button),
1975                                      &requisition, NULL);
1976           column->button_request = requisition.width;
1977           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1978         }
1979     }
1980 }
1981
1982
1983 /* Called only by ::size_request */
1984 static void
1985 gtk_tree_view_update_size (GtkTreeView *tree_view)
1986 {
1987   GList *list;
1988   GtkTreeViewColumn *column;
1989   gint i;
1990
1991   if (tree_view->priv->model == NULL)
1992     {
1993       tree_view->priv->width = 0;
1994       tree_view->priv->prev_width = 0;
1995       tree_view->priv->height = 0;
1996       return;
1997     }
1998
1999   tree_view->priv->prev_width = tree_view->priv->width;
2000   tree_view->priv->width = 0;
2001
2002   /* keep this in sync with size_allocate below */
2003   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
2004     {
2005       gint real_requested_width = 0;
2006       column = list->data;
2007       if (!column->visible)
2008         continue;
2009
2010       if (column->use_resized_width)
2011         {
2012           real_requested_width = column->resized_width;
2013         }
2014       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2015         {
2016           real_requested_width = column->fixed_width;
2017         }
2018       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2019         {
2020           real_requested_width = MAX (column->requested_width, column->button_request);
2021         }
2022       else
2023         {
2024           real_requested_width = column->requested_width;
2025         }
2026
2027       if (column->min_width != -1)
2028         real_requested_width = MAX (real_requested_width, column->min_width);
2029       if (column->max_width != -1)
2030         real_requested_width = MIN (real_requested_width, column->max_width);
2031
2032       tree_view->priv->width += real_requested_width;
2033     }
2034
2035   if (tree_view->priv->tree == NULL)
2036     tree_view->priv->height = 0;
2037   else
2038     tree_view->priv->height = tree_view->priv->tree->root->offset;
2039 }
2040
2041 static void
2042 gtk_tree_view_size_request (GtkWidget      *widget,
2043                             GtkRequisition *requisition)
2044 {
2045   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2046   GList *tmp_list;
2047
2048   /* we validate some rows initially just to make sure we have some size.
2049    * In practice, with a lot of static lists, this should get a good width.
2050    */
2051   do_validate_rows (tree_view, FALSE);
2052   gtk_tree_view_size_request_columns (tree_view);
2053   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2054
2055   requisition->width = tree_view->priv->width;
2056   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2057
2058   tmp_list = tree_view->priv->children;
2059
2060   while (tmp_list)
2061     {
2062       GtkTreeViewChild *child = tmp_list->data;
2063       GtkRequisition child_requisition;
2064
2065       tmp_list = tmp_list->next;
2066
2067       if (gtk_widget_get_visible (child->widget))
2068         gtk_size_request_get_size (GTK_SIZE_REQUEST (child->widget),
2069                                    &child_requisition, NULL);
2070     }
2071 }
2072
2073 static int
2074 gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
2075 {
2076   int width = 0;
2077   GList *list;
2078   gboolean rtl;
2079
2080   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2081   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2082        list->data != tree_view->priv->expander_column;
2083        list = (rtl ? list->prev : list->next))
2084     {
2085       GtkTreeViewColumn *column = list->data;
2086
2087       width += column->width;
2088     }
2089
2090   return width;
2091 }
2092
2093 static void
2094 invalidate_column (GtkTreeView       *tree_view,
2095                    GtkTreeViewColumn *column)
2096 {
2097   gint column_offset = 0;
2098   GList *list;
2099   GtkWidget *widget = GTK_WIDGET (tree_view);
2100   gboolean rtl;
2101
2102   if (!gtk_widget_get_realized (widget))
2103     return;
2104
2105   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2106   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2107        list;
2108        list = (rtl ? list->prev : list->next))
2109     {
2110       GtkTreeViewColumn *tmpcolumn = list->data;
2111       if (tmpcolumn == column)
2112         {
2113           GtkAllocation allocation;
2114           GdkRectangle invalid_rect;
2115
2116           gtk_widget_get_allocation (widget, &allocation);
2117           invalid_rect.x = column_offset;
2118           invalid_rect.y = 0;
2119           invalid_rect.width = column->width;
2120           invalid_rect.height = allocation.height;
2121
2122           gdk_window_invalidate_rect (gtk_widget_get_window (widget), &invalid_rect, TRUE);
2123           break;
2124         }
2125
2126       column_offset += tmpcolumn->width;
2127     }
2128 }
2129
2130 static void
2131 invalidate_last_column (GtkTreeView *tree_view)
2132 {
2133   GList *last_column;
2134   gboolean rtl;
2135
2136   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2137
2138   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2139        last_column;
2140        last_column = (rtl ? last_column->next : last_column->prev))
2141     {
2142       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2143         {
2144           invalidate_column (tree_view, last_column->data);
2145           return;
2146         }
2147     }
2148 }
2149
2150 static gint
2151 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2152                                                     GtkTreeViewColumn *column)
2153 {
2154   gint real_requested_width;
2155
2156   if (column->use_resized_width)
2157     {
2158       real_requested_width = column->resized_width;
2159     }
2160   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2161     {
2162       real_requested_width = column->fixed_width;
2163     }
2164   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2165     {
2166       real_requested_width = MAX (column->requested_width, column->button_request);
2167     }
2168   else
2169     {
2170       real_requested_width = column->requested_width;
2171       if (real_requested_width < 0)
2172         real_requested_width = 0;
2173     }
2174
2175   if (column->min_width != -1)
2176     real_requested_width = MAX (real_requested_width, column->min_width);
2177   if (column->max_width != -1)
2178     real_requested_width = MIN (real_requested_width, column->max_width);
2179
2180   return real_requested_width;
2181 }
2182
2183 /* GtkWidget::size_allocate helper */
2184 static void
2185 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2186                                      gboolean  *width_changed)
2187 {
2188   GtkTreeView *tree_view;
2189   GList *list, *first_column, *last_column;
2190   GtkTreeViewColumn *column;
2191   GtkAllocation allocation;
2192   GtkAllocation widget_allocation;
2193   gint width = 0;
2194   gint extra, extra_per_column, extra_for_last;
2195   gint full_requested_width = 0;
2196   gint number_of_expand_columns = 0;
2197   gboolean column_changed = FALSE;
2198   gboolean rtl;
2199   gboolean update_expand;
2200
2201   tree_view = GTK_TREE_VIEW (widget);
2202
2203   for (last_column = g_list_last (tree_view->priv->columns);
2204        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2205        last_column = last_column->prev)
2206     ;
2207   if (last_column == NULL)
2208     return;
2209
2210   for (first_column = g_list_first (tree_view->priv->columns);
2211        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2212        first_column = first_column->next)
2213     ;
2214
2215   allocation.y = 0;
2216   allocation.height = tree_view->priv->header_height;
2217
2218   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2219
2220   /* find out how many extra space and expandable columns we have */
2221   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2222     {
2223       column = (GtkTreeViewColumn *)list->data;
2224
2225       if (!column->visible)
2226         continue;
2227
2228       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2229
2230       if (column->expand)
2231         number_of_expand_columns++;
2232     }
2233
2234   /* Only update the expand value if the width of the widget has changed,
2235    * or the number of expand columns has changed, or if there are no expand
2236    * columns, or if we didn't have an size-allocation yet after the
2237    * last validated node.
2238    */
2239   update_expand = (width_changed && *width_changed == TRUE)
2240       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2241       || number_of_expand_columns == 0
2242       || tree_view->priv->post_validation_flag == TRUE;
2243
2244   tree_view->priv->post_validation_flag = FALSE;
2245
2246   gtk_widget_get_allocation (widget, &widget_allocation);
2247   if (!update_expand)
2248     {
2249       extra = tree_view->priv->last_extra_space;
2250       extra_for_last = MAX (widget_allocation.width - full_requested_width - extra, 0);
2251     }
2252   else
2253     {
2254       extra = MAX (widget_allocation.width - full_requested_width, 0);
2255       extra_for_last = 0;
2256
2257       tree_view->priv->last_extra_space = extra;
2258     }
2259
2260   if (number_of_expand_columns > 0)
2261     extra_per_column = extra/number_of_expand_columns;
2262   else
2263     extra_per_column = 0;
2264
2265   if (update_expand)
2266     {
2267       tree_view->priv->last_extra_space_per_column = extra_per_column;
2268       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2269     }
2270
2271   for (list = (rtl ? last_column : first_column);
2272        list != (rtl ? first_column->prev : last_column->next);
2273        list = (rtl ? list->prev : list->next))
2274     {
2275       gint real_requested_width = 0;
2276       gint old_width;
2277
2278       column = list->data;
2279       old_width = column->width;
2280
2281       if (!column->visible)
2282         continue;
2283
2284       /* We need to handle the dragged button specially.
2285        */
2286       if (column == tree_view->priv->drag_column)
2287         {
2288           GtkAllocation drag_allocation;
2289           gdk_drawable_get_size (tree_view->priv->drag_window,
2290                                  &(drag_allocation.width),
2291                                  &(drag_allocation.height));
2292           drag_allocation.x = 0;
2293           drag_allocation.y = 0;
2294           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2295                                     &drag_allocation);
2296           width += drag_allocation.width;
2297           continue;
2298         }
2299
2300       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2301
2302       allocation.x = width;
2303       column->width = real_requested_width;
2304
2305       if (column->expand)
2306         {
2307           if (number_of_expand_columns == 1)
2308             {
2309               /* We add the remander to the last column as
2310                * */
2311               column->width += extra;
2312             }
2313           else
2314             {
2315               column->width += extra_per_column;
2316               extra -= extra_per_column;
2317               number_of_expand_columns --;
2318             }
2319         }
2320       else if (number_of_expand_columns == 0 &&
2321                list == last_column)
2322         {
2323           column->width += extra;
2324         }
2325
2326       /* In addition to expand, the last column can get even more
2327        * extra space so all available space is filled up.
2328        */
2329       if (extra_for_last > 0 && list == last_column)
2330         column->width += extra_for_last;
2331
2332       g_object_notify (G_OBJECT (column), "width");
2333
2334       allocation.width = column->width;
2335       width += column->width;
2336
2337       if (column->width > old_width)
2338         column_changed = TRUE;
2339
2340       gtk_widget_size_allocate (column->button, &allocation);
2341
2342       if (column->window)
2343         gdk_window_move_resize (column->window,
2344                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2345                                 allocation.y,
2346                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2347     }
2348
2349   /* We change the width here.  The user might have been resizing columns,
2350    * so the total width of the tree view changes.
2351    */
2352   tree_view->priv->width = width;
2353   if (width_changed)
2354     *width_changed = TRUE;
2355
2356   if (column_changed)
2357     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2358 }
2359
2360
2361 static void
2362 gtk_tree_view_size_allocate (GtkWidget     *widget,
2363                              GtkAllocation *allocation)
2364 {
2365   GtkAllocation widget_allocation;
2366   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2367   GList *tmp_list;
2368   gboolean width_changed = FALSE;
2369   gint old_width;
2370
2371   gtk_widget_get_allocation (widget, &widget_allocation);
2372   old_width = widget_allocation.width;
2373   if (allocation->width != widget_allocation.width)
2374     width_changed = TRUE;
2375
2376   gtk_widget_set_allocation (widget, allocation);
2377
2378   tmp_list = tree_view->priv->children;
2379
2380   while (tmp_list)
2381     {
2382       GtkAllocation allocation;
2383
2384       GtkTreeViewChild *child = tmp_list->data;
2385       tmp_list = tmp_list->next;
2386
2387       /* totally ignore our child's requisition */
2388       allocation.x = child->x;
2389       allocation.y = child->y;
2390       allocation.width = child->width;
2391       allocation.height = child->height;
2392       gtk_widget_size_allocate (child->widget, &allocation);
2393     }
2394
2395   /* We size-allocate the columns first because the width of the
2396    * tree view (used in updating the adjustments below) might change.
2397    */
2398   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2399
2400   tree_view->priv->hadjustment->page_size = allocation->width;
2401   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2402   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2403   tree_view->priv->hadjustment->lower = 0;
2404   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2405
2406   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2407     {
2408       if (allocation->width < tree_view->priv->width)
2409         {
2410           if (tree_view->priv->init_hadjust_value)
2411             {
2412               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2413               tree_view->priv->init_hadjust_value = FALSE;
2414             }
2415           else if (allocation->width != old_width)
2416             {
2417               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2418             }
2419           else
2420             tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->width - (tree_view->priv->prev_width - tree_view->priv->hadjustment->value), 0, tree_view->priv->width - allocation->width);
2421         }
2422       else
2423         {
2424           tree_view->priv->hadjustment->value = 0;
2425           tree_view->priv->init_hadjust_value = TRUE;
2426         }
2427     }
2428   else
2429     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2430       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2431
2432   gtk_adjustment_changed (tree_view->priv->hadjustment);
2433
2434   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2435   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2436   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2437   tree_view->priv->vadjustment->lower = 0;
2438   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2439
2440   gtk_adjustment_changed (tree_view->priv->vadjustment);
2441
2442   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2443   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2444     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2445   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2446     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2447                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2448   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2449     gtk_tree_view_top_row_to_dy (tree_view);
2450   else
2451     gtk_tree_view_dy_to_top_row (tree_view);
2452
2453   if (gtk_widget_get_realized (widget))
2454     {
2455       gdk_window_move_resize (gtk_widget_get_window (widget),
2456                               allocation->x, allocation->y,
2457                               allocation->width, allocation->height);
2458       gdk_window_move_resize (tree_view->priv->header_window,
2459                               - (gint) tree_view->priv->hadjustment->value,
2460                               0,
2461                               MAX (tree_view->priv->width, allocation->width),
2462                               tree_view->priv->header_height);
2463       gdk_window_move_resize (tree_view->priv->bin_window,
2464                               - (gint) tree_view->priv->hadjustment->value,
2465                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2466                               MAX (tree_view->priv->width, allocation->width),
2467                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2468     }
2469
2470   if (tree_view->priv->tree == NULL)
2471     invalidate_empty_focus (tree_view);
2472
2473   if (gtk_widget_get_realized (widget))
2474     {
2475       gboolean has_expand_column = FALSE;
2476       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2477         {
2478           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2479             {
2480               has_expand_column = TRUE;
2481               break;
2482             }
2483         }
2484
2485       if (width_changed && tree_view->priv->expander_column)
2486         {
2487           /* Might seem awkward, but is the best heuristic I could come up
2488            * with.  Only if the width of the columns before the expander
2489            * changes, we will update the prelight status.  It is this
2490            * width that makes the expander move vertically.  Always updating
2491            * prelight status causes trouble with hover selections.
2492            */
2493           gint width_before_expander;
2494
2495           width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view);
2496
2497           if (tree_view->priv->prev_width_before_expander
2498               != width_before_expander)
2499               update_prelight (tree_view,
2500                                tree_view->priv->event_last_x,
2501                                tree_view->priv->event_last_y);
2502
2503           tree_view->priv->prev_width_before_expander = width_before_expander;
2504         }
2505
2506       /* This little hack only works if we have an LTR locale, and no column has the  */
2507       if (width_changed)
2508         {
2509           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2510               ! has_expand_column)
2511             invalidate_last_column (tree_view);
2512           else
2513             gtk_widget_queue_draw (widget);
2514         }
2515     }
2516 }
2517
2518 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2519 static void
2520 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2521 {
2522   GtkWidget *widget = GTK_WIDGET (tree_view);
2523
2524   if (gtk_widget_get_can_focus (widget) && !gtk_widget_has_focus (widget))
2525     gtk_widget_grab_focus (widget);
2526   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2527 }
2528
2529 static inline gboolean
2530 row_is_separator (GtkTreeView *tree_view,
2531                   GtkTreeIter *iter,
2532                   GtkTreePath *path)
2533 {
2534   gboolean is_separator = FALSE;
2535
2536   if (tree_view->priv->row_separator_func)
2537     {
2538       GtkTreeIter tmpiter;
2539
2540       if (iter)
2541         tmpiter = *iter;
2542       else
2543         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2544
2545       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2546                                                           &tmpiter,
2547                                                           tree_view->priv->row_separator_data);
2548     }
2549
2550   return is_separator;
2551 }
2552
2553 static gboolean
2554 gtk_tree_view_button_press (GtkWidget      *widget,
2555                             GdkEventButton *event)
2556 {
2557   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2558   GList *list;
2559   GtkTreeViewColumn *column = NULL;
2560   gint i;
2561   GdkRectangle background_area;
2562   GdkRectangle cell_area;
2563   gint vertical_separator;
2564   gint horizontal_separator;
2565   gboolean path_is_selectable;
2566   gboolean rtl;
2567
2568   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2569   gtk_tree_view_stop_editing (tree_view, FALSE);
2570   gtk_widget_style_get (widget,
2571                         "vertical-separator", &vertical_separator,
2572                         "horizontal-separator", &horizontal_separator,
2573                         NULL);
2574
2575
2576   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2577    * we're done handling the button press.
2578    */
2579
2580   if (event->window == tree_view->priv->bin_window)
2581     {
2582       GtkRBNode *node;
2583       GtkRBTree *tree;
2584       GtkTreePath *path;
2585       gchar *path_string;
2586       gint depth;
2587       gint new_y;
2588       gint y_offset;
2589       gint dval;
2590       gint pre_val, aft_val;
2591       GtkTreeViewColumn *column = NULL;
2592       GtkCellRenderer *focus_cell = NULL;
2593       gint column_handled_click = FALSE;
2594       gboolean row_double_click = FALSE;
2595       gboolean rtl;
2596       gboolean node_selected;
2597
2598       /* Empty tree? */
2599       if (tree_view->priv->tree == NULL)
2600         {
2601           grab_focus_and_unset_draw_keyfocus (tree_view);
2602           return TRUE;
2603         }
2604
2605       /* are we in an arrow? */
2606       if (tree_view->priv->prelight_node &&
2607           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2608           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2609         {
2610           if (event->button == 1)
2611             {
2612               gtk_grab_add (widget);
2613               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2614               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2615               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2616                                         tree_view->priv->prelight_tree,
2617                                         tree_view->priv->prelight_node,
2618                                         event->x,
2619                                         event->y);
2620             }
2621
2622           grab_focus_and_unset_draw_keyfocus (tree_view);
2623           return TRUE;
2624         }
2625
2626       /* find the node that was clicked */
2627       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2628       if (new_y < 0)
2629         new_y = 0;
2630       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2631
2632       if (node == NULL)
2633         {
2634           /* We clicked in dead space */
2635           grab_focus_and_unset_draw_keyfocus (tree_view);
2636           return TRUE;
2637         }
2638
2639       /* Get the path and the node */
2640       path = _gtk_tree_view_find_path (tree_view, tree, node);
2641       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2642
2643       if (!path_is_selectable)
2644         {
2645           gtk_tree_path_free (path);
2646           grab_focus_and_unset_draw_keyfocus (tree_view);
2647           return TRUE;
2648         }
2649
2650       depth = gtk_tree_path_get_depth (path);
2651       background_area.y = y_offset + event->y;
2652       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2653       background_area.x = 0;
2654
2655
2656       /* Let the column have a chance at selecting it. */
2657       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2658       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2659            list; list = (rtl ? list->prev : list->next))
2660         {
2661           GtkTreeViewColumn *candidate = list->data;
2662
2663           if (!candidate->visible)
2664             continue;
2665
2666           background_area.width = candidate->width;
2667           if ((background_area.x > (gint) event->x) ||
2668               (background_area.x + background_area.width <= (gint) event->x))
2669             {
2670               background_area.x += background_area.width;
2671               continue;
2672             }
2673
2674           /* we found the focus column */
2675           column = candidate;
2676           cell_area = background_area;
2677           cell_area.width -= horizontal_separator;
2678           cell_area.height -= vertical_separator;
2679           cell_area.x += horizontal_separator/2;
2680           cell_area.y += vertical_separator/2;
2681           if (gtk_tree_view_is_expander_column (tree_view, column))
2682             {
2683               if (!rtl)
2684                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2685               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2686
2687               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2688                 {
2689                   if (!rtl)
2690                     cell_area.x += depth * tree_view->priv->expander_size;
2691                   cell_area.width -= depth * tree_view->priv->expander_size;
2692                 }
2693             }
2694           break;
2695         }
2696
2697       if (column == NULL)
2698         {
2699           gtk_tree_path_free (path);
2700           grab_focus_and_unset_draw_keyfocus (tree_view);
2701           return FALSE;
2702         }
2703
2704       tree_view->priv->focus_column = column;
2705
2706       /* decide if we edit */
2707       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2708           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2709         {
2710           GtkTreePath *anchor;
2711           GtkTreeIter iter;
2712
2713           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2714           gtk_tree_view_column_cell_set_cell_data (column,
2715                                                    tree_view->priv->model,
2716                                                    &iter,
2717                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2718                                                    node->children?TRUE:FALSE);
2719
2720           if (tree_view->priv->anchor)
2721             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2722           else
2723             anchor = NULL;
2724
2725           if ((anchor && !gtk_tree_path_compare (anchor, path))
2726               || !_gtk_tree_view_column_has_editable_cell (column))
2727             {
2728               GtkCellEditable *cell_editable = NULL;
2729
2730               /* FIXME: get the right flags */
2731               guint flags = 0;
2732
2733               path_string = gtk_tree_path_to_string (path);
2734
2735               if (_gtk_tree_view_column_cell_event (column,
2736                                                     &cell_editable,
2737                                                     (GdkEvent *)event,
2738                                                     path_string,
2739                                                     &background_area,
2740                                                     &cell_area, flags))
2741                 {
2742                   if (cell_editable != NULL)
2743                     {
2744                       gint left, right;
2745                       GdkRectangle area;
2746
2747                       area = cell_area;
2748                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2749
2750                       area.x += left;
2751                       area.width -= right + left;
2752
2753                       gtk_tree_view_real_start_editing (tree_view,
2754                                                         column,
2755                                                         path,
2756                                                         cell_editable,
2757                                                         &area,
2758                                                         (GdkEvent *)event,
2759                                                         flags);
2760                       g_free (path_string);
2761                       gtk_tree_path_free (path);
2762                       gtk_tree_path_free (anchor);
2763                       return TRUE;
2764                     }
2765                   column_handled_click = TRUE;
2766                 }
2767               g_free (path_string);
2768             }
2769           if (anchor)
2770             gtk_tree_path_free (anchor);
2771         }
2772
2773       /* select */
2774       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2775       pre_val = tree_view->priv->vadjustment->value;
2776
2777       /* we only handle selection modifications on the first button press
2778        */
2779       if (event->type == GDK_BUTTON_PRESS)
2780         {
2781           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2782             tree_view->priv->ctrl_pressed = TRUE;
2783           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2784             tree_view->priv->shift_pressed = TRUE;
2785
2786           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2787           if (focus_cell)
2788             gtk_tree_view_column_focus_cell (column, focus_cell);
2789
2790           if (event->state & GDK_CONTROL_MASK)
2791             {
2792               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2793               gtk_tree_view_real_toggle_cursor_row (tree_view);
2794             }
2795           else if (event->state & GDK_SHIFT_MASK)
2796             {
2797               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2798               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2799             }
2800           else
2801             {
2802               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2803             }
2804
2805           tree_view->priv->ctrl_pressed = FALSE;
2806           tree_view->priv->shift_pressed = FALSE;
2807         }
2808
2809       /* the treeview may have been scrolled because of _set_cursor,
2810        * correct here
2811        */
2812
2813       aft_val = tree_view->priv->vadjustment->value;
2814       dval = pre_val - aft_val;
2815
2816       cell_area.y += dval;
2817       background_area.y += dval;
2818
2819       /* Save press to possibly begin a drag
2820        */
2821       if (!column_handled_click &&
2822           !tree_view->priv->in_grab &&
2823           tree_view->priv->pressed_button < 0)
2824         {
2825           tree_view->priv->pressed_button = event->button;
2826           tree_view->priv->press_start_x = event->x;
2827           tree_view->priv->press_start_y = event->y;
2828
2829           if (tree_view->priv->rubber_banding_enable
2830               && !node_selected
2831               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2832             {
2833               tree_view->priv->press_start_y += tree_view->priv->dy;
2834               tree_view->priv->rubber_band_x = event->x;
2835               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2836               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2837
2838               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2839                 tree_view->priv->rubber_band_ctrl = TRUE;
2840               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2841                 tree_view->priv->rubber_band_shift = TRUE;
2842             }
2843         }
2844
2845       /* Test if a double click happened on the same row. */
2846       if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
2847         {
2848           int double_click_time, double_click_distance;
2849
2850           g_object_get (gtk_settings_get_default (),
2851                         "gtk-double-click-time", &double_click_time,
2852                         "gtk-double-click-distance", &double_click_distance,
2853                         NULL);
2854
2855           /* Same conditions as _gdk_event_button_generate */
2856           if (tree_view->priv->last_button_x != -1 &&
2857               (event->time < tree_view->priv->last_button_time + double_click_time) &&
2858               (ABS (event->x - tree_view->priv->last_button_x) <= double_click_distance) &&
2859               (ABS (event->y - tree_view->priv->last_button_y) <= double_click_distance))
2860             {
2861               /* We do no longer compare paths of this row and the
2862                * row clicked previously.  We use the double click
2863                * distance to decide whether this is a valid click,
2864                * allowing the mouse to slightly move over another row.
2865                */
2866               row_double_click = TRUE;
2867
2868               tree_view->priv->last_button_time = 0;
2869               tree_view->priv->last_button_x = -1;
2870               tree_view->priv->last_button_y = -1;
2871             }
2872           else
2873             {
2874               tree_view->priv->last_button_time = event->time;
2875               tree_view->priv->last_button_x = event->x;
2876               tree_view->priv->last_button_y = event->y;
2877             }
2878         }
2879
2880       if (row_double_click)
2881         {
2882           gtk_grab_remove (widget);
2883           gtk_tree_view_row_activated (tree_view, path, column);
2884
2885           if (tree_view->priv->pressed_button == event->button)
2886             tree_view->priv->pressed_button = -1;
2887         }
2888
2889       gtk_tree_path_free (path);
2890
2891       /* If we activated the row through a double click we don't want to grab
2892        * focus back, as moving focus to another widget is pretty common.
2893        */
2894       if (!row_double_click)
2895         grab_focus_and_unset_draw_keyfocus (tree_view);
2896
2897       return TRUE;
2898     }
2899
2900   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2901    */
2902   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2903     {
2904       column = list->data;
2905       if (event->window == column->window &&
2906           column->resizable &&
2907           column->window)
2908         {
2909           GtkAllocation button_allocation;
2910           gpointer drag_data;
2911
2912           if (event->type == GDK_2BUTTON_PRESS &&
2913               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2914             {
2915               column->use_resized_width = FALSE;
2916               _gtk_tree_view_column_autosize (tree_view, column);
2917               return TRUE;
2918             }
2919
2920           if (gdk_pointer_grab (column->window, FALSE,
2921                                 GDK_POINTER_MOTION_HINT_MASK |
2922                                 GDK_BUTTON1_MOTION_MASK |
2923                                 GDK_BUTTON_RELEASE_MASK,
2924                                 NULL, NULL, event->time))
2925             return FALSE;
2926
2927           gtk_grab_add (widget);
2928           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2929           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2930
2931           /* block attached dnd signal handler */
2932           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2933           if (drag_data)
2934             g_signal_handlers_block_matched (widget,
2935                                              G_SIGNAL_MATCH_DATA,
2936                                              0, 0, NULL, NULL,
2937                                              drag_data);
2938
2939           gtk_widget_get_allocation (column->button, &button_allocation);
2940           tree_view->priv->drag_pos = i;
2941           tree_view->priv->x_drag = button_allocation.x + (rtl ? 0 : button_allocation.width);
2942
2943           if (!gtk_widget_has_focus (widget))
2944             gtk_widget_grab_focus (widget);
2945
2946           return TRUE;
2947         }
2948     }
2949   return FALSE;
2950 }
2951
2952 /* GtkWidget::button_release_event helper */
2953 static gboolean
2954 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2955                                           GdkEventButton *event)
2956 {
2957   GtkTreeView *tree_view;
2958   GList *l;
2959   gboolean rtl;
2960
2961   tree_view = GTK_TREE_VIEW (widget);
2962
2963   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2964   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2965   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2966
2967   /* Move the button back */
2968   g_object_ref (tree_view->priv->drag_column->button);
2969   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2970   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2971   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2972   g_object_unref (tree_view->priv->drag_column->button);
2973   gtk_widget_queue_resize (widget);
2974   if (tree_view->priv->drag_column->resizable)
2975     {
2976       gdk_window_raise (tree_view->priv->drag_column->window);
2977       gdk_window_show (tree_view->priv->drag_column->window);
2978     }
2979   else
2980     gdk_window_hide (tree_view->priv->drag_column->window);
2981
2982   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2983
2984   if (rtl)
2985     {
2986       if (tree_view->priv->cur_reorder &&
2987           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2988         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2989                                          tree_view->priv->cur_reorder->right_column);
2990     }
2991   else
2992     {
2993       if (tree_view->priv->cur_reorder &&
2994           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2995         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2996                                          tree_view->priv->cur_reorder->left_column);
2997     }
2998   tree_view->priv->drag_column = NULL;
2999   gdk_window_hide (tree_view->priv->drag_window);
3000
3001   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
3002     g_slice_free (GtkTreeViewColumnReorder, l->data);
3003   g_list_free (tree_view->priv->column_drag_info);
3004   tree_view->priv->column_drag_info = NULL;
3005   tree_view->priv->cur_reorder = NULL;
3006
3007   if (tree_view->priv->drag_highlight_window)
3008     gdk_window_hide (tree_view->priv->drag_highlight_window);
3009
3010   /* Reset our flags */
3011   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
3012   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
3013
3014   return TRUE;
3015 }
3016
3017 /* GtkWidget::button_release_event helper */
3018 static gboolean
3019 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
3020                                             GdkEventButton *event)
3021 {
3022   GtkTreeView *tree_view;
3023   gpointer drag_data;
3024
3025   tree_view = GTK_TREE_VIEW (widget);
3026
3027   tree_view->priv->drag_pos = -1;
3028
3029   /* unblock attached dnd signal handler */
3030   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
3031   if (drag_data)
3032     g_signal_handlers_unblock_matched (widget,
3033                                        G_SIGNAL_MATCH_DATA,
3034                                        0, 0, NULL, NULL,
3035                                        drag_data);
3036
3037   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
3038   gtk_grab_remove (widget);
3039   gdk_display_pointer_ungrab (gdk_window_get_display (event->window),
3040                               event->time);
3041   return TRUE;
3042 }
3043
3044 static gboolean
3045 gtk_tree_view_button_release (GtkWidget      *widget,
3046                               GdkEventButton *event)
3047 {
3048   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3049
3050   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3051     return gtk_tree_view_button_release_drag_column (widget, event);
3052
3053   if (tree_view->priv->rubber_band_status)
3054     gtk_tree_view_stop_rubber_band (tree_view);
3055
3056   if (tree_view->priv->pressed_button == event->button)
3057     tree_view->priv->pressed_button = -1;
3058
3059   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3060     return gtk_tree_view_button_release_column_resize (widget, event);
3061
3062   if (tree_view->priv->button_pressed_node == NULL)
3063     return FALSE;
3064
3065   if (event->button == 1)
3066     {
3067       gtk_grab_remove (widget);
3068       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3069           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3070         {
3071           GtkTreePath *path = NULL;
3072
3073           path = _gtk_tree_view_find_path (tree_view,
3074                                            tree_view->priv->button_pressed_tree,
3075                                            tree_view->priv->button_pressed_node);
3076           /* Actually activate the node */
3077           if (tree_view->priv->button_pressed_node->children == NULL)
3078             gtk_tree_view_real_expand_row (tree_view, path,
3079                                            tree_view->priv->button_pressed_tree,
3080                                            tree_view->priv->button_pressed_node,
3081                                            FALSE, TRUE);
3082           else
3083             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3084                                              tree_view->priv->button_pressed_tree,
3085                                              tree_view->priv->button_pressed_node, TRUE);
3086           gtk_tree_path_free (path);
3087         }
3088
3089       tree_view->priv->button_pressed_tree = NULL;
3090       tree_view->priv->button_pressed_node = NULL;
3091     }
3092
3093   return TRUE;
3094 }
3095
3096 static gboolean
3097 gtk_tree_view_grab_broken (GtkWidget          *widget,
3098                            GdkEventGrabBroken *event)
3099 {
3100   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3101
3102   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3103     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3104
3105   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3106     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3107
3108   return TRUE;
3109 }
3110
3111 #if 0
3112 static gboolean
3113 gtk_tree_view_configure (GtkWidget *widget,
3114                          GdkEventConfigure *event)
3115 {
3116   GtkTreeView *tree_view;
3117
3118   tree_view = GTK_TREE_VIEW (widget);
3119   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3120
3121   return FALSE;
3122 }
3123 #endif
3124
3125 /* GtkWidget::motion_event function set.
3126  */
3127
3128 static gboolean
3129 coords_are_over_arrow (GtkTreeView *tree_view,
3130                        GtkRBTree   *tree,
3131                        GtkRBNode   *node,
3132                        /* these are in bin window coords */
3133                        gint         x,
3134                        gint         y)
3135 {
3136   GdkRectangle arrow;
3137   gint x2;
3138
3139   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
3140     return FALSE;
3141
3142   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3143     return FALSE;
3144
3145   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3146
3147   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3148
3149   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3150
3151   arrow.width = x2 - arrow.x;
3152
3153   return (x >= arrow.x &&
3154           x < (arrow.x + arrow.width) &&
3155           y >= arrow.y &&
3156           y < (arrow.y + arrow.height));
3157 }
3158
3159 static gboolean
3160 auto_expand_timeout (gpointer data)
3161 {
3162   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3163   GtkTreePath *path;
3164
3165   if (tree_view->priv->prelight_node)
3166     {
3167       path = _gtk_tree_view_find_path (tree_view,
3168                                        tree_view->priv->prelight_tree,
3169                                        tree_view->priv->prelight_node);
3170
3171       if (tree_view->priv->prelight_node->children)
3172         gtk_tree_view_collapse_row (tree_view, path);
3173       else
3174         gtk_tree_view_expand_row (tree_view, path, FALSE);
3175
3176       gtk_tree_path_free (path);
3177     }
3178
3179   tree_view->priv->auto_expand_timeout = 0;
3180
3181   return FALSE;
3182 }
3183
3184 static void
3185 remove_auto_expand_timeout (GtkTreeView *tree_view)
3186 {
3187   if (tree_view->priv->auto_expand_timeout != 0)
3188     {
3189       g_source_remove (tree_view->priv->auto_expand_timeout);
3190       tree_view->priv->auto_expand_timeout = 0;
3191     }
3192 }
3193
3194 static void
3195 do_prelight (GtkTreeView *tree_view,
3196              GtkRBTree   *tree,
3197              GtkRBNode   *node,
3198              /* these are in bin_window coords */
3199              gint         x,
3200              gint         y)
3201 {
3202   if (tree_view->priv->prelight_tree == tree &&
3203       tree_view->priv->prelight_node == node)
3204     {
3205       /*  We are still on the same node,
3206           but we might need to take care of the arrow  */
3207
3208       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3209         {
3210           gboolean over_arrow;
3211           gboolean flag_set;
3212
3213           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3214           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3215                                              GTK_TREE_VIEW_ARROW_PRELIT);
3216
3217           if (over_arrow != flag_set)
3218             {
3219               if (over_arrow)
3220                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3221                                         GTK_TREE_VIEW_ARROW_PRELIT);
3222               else
3223                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3224                                           GTK_TREE_VIEW_ARROW_PRELIT);
3225
3226               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3227             }
3228         }
3229
3230       return;
3231     }
3232
3233   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3234     {
3235       /*  Unprelight the old node and arrow  */
3236
3237       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3238                              GTK_RBNODE_IS_PRELIT);
3239
3240       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3241           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3242         {
3243           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3244
3245           gtk_tree_view_draw_arrow (tree_view,
3246                                     tree_view->priv->prelight_tree,
3247                                     tree_view->priv->prelight_node,
3248                                     x,
3249                                     y);
3250         }
3251
3252       _gtk_tree_view_queue_draw_node (tree_view,
3253                                       tree_view->priv->prelight_tree,
3254                                       tree_view->priv->prelight_node,
3255                                       NULL);
3256     }
3257
3258
3259   if (tree_view->priv->hover_expand)
3260     remove_auto_expand_timeout (tree_view);
3261
3262   /*  Set the new prelight values  */
3263   tree_view->priv->prelight_node = node;
3264   tree_view->priv->prelight_tree = tree;
3265
3266   if (!node || !tree)
3267     return;
3268
3269   /*  Prelight the new node and arrow  */
3270
3271   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3272       && coords_are_over_arrow (tree_view, tree, node, x, y))
3273     {
3274       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3275
3276       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3277     }
3278
3279   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3280
3281   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3282
3283   if (tree_view->priv->hover_expand)
3284     {
3285       tree_view->priv->auto_expand_timeout =
3286         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3287     }
3288 }
3289
3290 static void
3291 prelight_or_select (GtkTreeView *tree_view,
3292                     GtkRBTree   *tree,
3293                     GtkRBNode   *node,
3294                     /* these are in bin_window coords */
3295                     gint         x,
3296                     gint         y)
3297 {
3298   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3299
3300   if (tree_view->priv->hover_selection &&
3301       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3302       !(tree_view->priv->edited_column &&
3303         tree_view->priv->edited_column->editable_widget))
3304     {
3305       if (node)
3306         {
3307           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3308             {
3309               GtkTreePath *path;
3310
3311               path = _gtk_tree_view_find_path (tree_view, tree, node);
3312               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3313               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3314                 {
3315                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3316                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3317                 }
3318               gtk_tree_path_free (path);
3319             }
3320         }
3321
3322       else if (mode == GTK_SELECTION_SINGLE)
3323         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3324     }
3325
3326     do_prelight (tree_view, tree, node, x, y);
3327 }
3328
3329 static void
3330 ensure_unprelighted (GtkTreeView *tree_view)
3331 {
3332   do_prelight (tree_view,
3333                NULL, NULL,
3334                -1000, -1000); /* coords not possibly over an arrow */
3335
3336   g_assert (tree_view->priv->prelight_node == NULL);
3337 }
3338
3339 static void
3340 update_prelight (GtkTreeView *tree_view,
3341                  gint         x,
3342                  gint         y)
3343 {
3344   int new_y;
3345   GtkRBTree *tree;
3346   GtkRBNode *node;
3347
3348   if (tree_view->priv->tree == NULL)
3349     return;
3350
3351   if (x == -10000)
3352     {
3353       ensure_unprelighted (tree_view);
3354       return;
3355     }
3356
3357   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
3358   if (new_y < 0)
3359     new_y = 0;
3360
3361   _gtk_rbtree_find_offset (tree_view->priv->tree,
3362                            new_y, &tree, &node);
3363
3364   if (node)
3365     prelight_or_select (tree_view, tree, node, x, y);
3366 }
3367
3368
3369
3370
3371 /* Our motion arrow is either a box (in the case of the original spot)
3372  * or an arrow.  It is expander_size wide.
3373  */
3374 /*
3375  * 11111111111111
3376  * 01111111111110
3377  * 00111111111100
3378  * 00011111111000
3379  * 00001111110000
3380  * 00000111100000
3381  * 00000111100000
3382  * 00000111100000
3383  * ~ ~ ~ ~ ~ ~ ~
3384  * 00000111100000
3385  * 00000111100000
3386  * 00000111100000
3387  * 00001111110000
3388  * 00011111111000
3389  * 00111111111100
3390  * 01111111111110
3391  * 11111111111111
3392  */
3393
3394 static void
3395 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3396 {
3397   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3398   GtkWidget *widget = GTK_WIDGET (tree_view);
3399   cairo_surface_t *mask_image;
3400   cairo_region_t *mask_region;
3401   gint x;
3402   gint y;
3403   gint width;
3404   gint height;
3405   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3406   GdkWindowAttr attributes;
3407   guint attributes_mask;
3408   cairo_t *cr;
3409
3410   if (!reorder ||
3411       reorder->left_column == tree_view->priv->drag_column ||
3412       reorder->right_column == tree_view->priv->drag_column)
3413     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3414   else if (reorder->left_column || reorder->right_column)
3415     {
3416       GtkAllocation left_allocation, right_allocation;
3417       GdkRectangle visible_rect;
3418
3419       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3420       if (reorder->left_column)
3421         {
3422           gtk_widget_get_allocation (reorder->left_column->button, &left_allocation);
3423           x = left_allocation.x + left_allocation.width;
3424         }
3425       else
3426         {
3427           gtk_widget_get_allocation (reorder->right_column->button, &right_allocation);
3428           x = right_allocation.x;
3429         }
3430
3431       if (x < visible_rect.x)
3432         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3433       else if (x > visible_rect.x + visible_rect.width)
3434         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3435       else
3436         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3437     }
3438
3439   /* We want to draw the rectangle over the initial location. */
3440   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3441     {
3442       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3443         {
3444           GtkAllocation drag_allocation;
3445
3446           if (tree_view->priv->drag_highlight_window)
3447             {
3448               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3449                                         NULL);
3450               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3451             }
3452
3453           attributes.window_type = GDK_WINDOW_CHILD;
3454           attributes.wclass = GDK_INPUT_OUTPUT;
3455           attributes.x = tree_view->priv->drag_column_x;
3456           attributes.y = 0;
3457           gtk_widget_get_allocation (tree_view->priv->drag_column->button, &drag_allocation);
3458           width = attributes.width = drag_allocation.width;
3459           height = attributes.height = drag_allocation.height;
3460           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3461           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3462           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
3463           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3464           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3465
3466           mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
3467           cr = cairo_create (mask_image);
3468
3469           cairo_rectangle (cr, 1, 1, width - 2, height - 2);
3470           cairo_stroke (cr);
3471           cairo_destroy (cr);
3472
3473           mask_region = gdk_cairo_region_create_from_surface (mask_image);
3474           gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
3475                                            mask_region, 0, 0);
3476
3477           cairo_region_destroy (mask_region);
3478           cairo_surface_destroy (mask_image);
3479
3480           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3481         }
3482     }
3483   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3484     {
3485       GtkAllocation button_allocation;
3486
3487       width = tree_view->priv->expander_size;
3488
3489       /* Get x, y, width, height of arrow */
3490       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3491       if (reorder->left_column)
3492         {
3493           gtk_widget_get_allocation (reorder->left_column->button, &button_allocation);
3494           x += button_allocation.x + button_allocation.width - width/2;
3495           height = button_allocation.height;
3496         }
3497       else
3498         {
3499           gtk_widget_get_allocation (reorder->right_column->button, &button_allocation);
3500           x += button_allocation.x - width/2;
3501           height = button_allocation.height;
3502         }
3503       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3504       height += tree_view->priv->expander_size;
3505
3506       /* Create the new window */
3507       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3508         {
3509           if (tree_view->priv->drag_highlight_window)
3510             {
3511               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3512                                         NULL);
3513               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3514             }
3515
3516           attributes.window_type = GDK_WINDOW_TEMP;
3517           attributes.wclass = GDK_INPUT_OUTPUT;
3518           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3519           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3520           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
3521           attributes.x = x;
3522           attributes.y = y;
3523           attributes.width = width;
3524           attributes.height = height;
3525           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3526                                                                    &attributes, attributes_mask);
3527           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3528
3529           mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
3530
3531           cr = cairo_create (mask_image);
3532           cairo_move_to (cr, 0, 0);
3533           cairo_line_to (cr, width, 0);
3534           cairo_line_to (cr, width / 2., width / 2);
3535           cairo_move_to (cr, 0, height);
3536           cairo_line_to (cr, width, height);
3537           cairo_line_to (cr, width / 2., height - width / 2.);
3538           cairo_fill (cr);
3539           cairo_destroy (cr);
3540
3541           mask_region = gdk_cairo_region_create_from_surface (mask_image);
3542           gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
3543                                            mask_region, 0, 0);
3544
3545           cairo_region_destroy (mask_region);
3546           cairo_surface_destroy (mask_image);
3547         }
3548
3549       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3550       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3551     }
3552   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3553            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3554     {
3555       GtkAllocation allocation;
3556
3557       width = tree_view->priv->expander_size;
3558
3559       /* Get x, y, width, height of arrow */
3560       width = width/2; /* remember, the arrow only takes half the available width */
3561       gdk_window_get_origin (gtk_widget_get_window (widget),
3562                              &x, &y);
3563       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3564         {
3565           gtk_widget_get_allocation (widget, &allocation);
3566           x += allocation.width - width;
3567         }
3568
3569       if (reorder->left_column)
3570         {
3571           gtk_widget_get_allocation (reorder->left_column->button, &allocation);
3572           height = allocation.height;
3573         }
3574       else
3575         {
3576           gtk_widget_get_allocation (reorder->right_column->button, &allocation);
3577           height = allocation.height;
3578         }
3579
3580       y -= tree_view->priv->expander_size;
3581       height += 2*tree_view->priv->expander_size;
3582
3583       /* Create the new window */
3584       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3585           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3586         {
3587           if (tree_view->priv->drag_highlight_window)
3588             {
3589               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3590                                         NULL);
3591               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3592             }
3593
3594           attributes.window_type = GDK_WINDOW_TEMP;
3595           attributes.wclass = GDK_INPUT_OUTPUT;
3596           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3597           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3598           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
3599           attributes.x = x;
3600           attributes.y = y;
3601           attributes.width = width;
3602           attributes.height = height;
3603           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3604           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3605
3606           mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
3607
3608           cr = cairo_create (mask_image);
3609           /* mirror if we're on the left */
3610           if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3611             {
3612               cairo_translate (cr, width, 0);
3613               cairo_scale (cr, -1, 1);
3614             }
3615           cairo_move_to (cr, 0, 0);
3616           cairo_line_to (cr, width, width);
3617           cairo_line_to (cr, 0, tree_view->priv->expander_size);
3618           cairo_move_to (cr, 0, height);
3619           cairo_line_to (cr, width, height - width);
3620           cairo_line_to (cr, 0, height - tree_view->priv->expander_size);
3621           cairo_fill (cr);
3622           cairo_destroy (cr);
3623
3624           mask_region = gdk_cairo_region_create_from_surface (mask_image);
3625           gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
3626                                            mask_region, 0, 0);
3627
3628           cairo_region_destroy (mask_region);
3629           cairo_surface_destroy (mask_image);
3630         }
3631
3632       tree_view->priv->drag_column_window_state = arrow_type;
3633       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3634    }
3635   else
3636     {
3637       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3638       gdk_window_hide (tree_view->priv->drag_highlight_window);
3639       return;
3640     }
3641
3642   gdk_window_show (tree_view->priv->drag_highlight_window);
3643   gdk_window_raise (tree_view->priv->drag_highlight_window);
3644 }
3645
3646 static gboolean
3647 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3648                                     GdkEventMotion *event)
3649 {
3650   gint x;
3651   gint new_width;
3652   GtkTreeViewColumn *column;
3653   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3654
3655   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3656
3657   if (event->is_hint || event->window != gtk_widget_get_window (widget))
3658     gtk_widget_get_pointer (widget, &x, NULL);
3659   else
3660     x = event->x;
3661
3662   if (tree_view->priv->hadjustment)
3663     x += tree_view->priv->hadjustment->value;
3664
3665   new_width = gtk_tree_view_new_column_width (tree_view,
3666                                               tree_view->priv->drag_pos, &x);
3667   if (x != tree_view->priv->x_drag &&
3668       (new_width != column->fixed_width))
3669     {
3670       column->use_resized_width = TRUE;
3671       column->resized_width = new_width;
3672       if (column->expand)
3673         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3674       gtk_widget_queue_resize (widget);
3675     }
3676
3677   return FALSE;
3678 }
3679
3680
3681 static void
3682 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3683 {
3684   GtkTreeViewColumnReorder *reorder = NULL;
3685   GList *list;
3686   gint mouse_x;
3687
3688   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3689   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3690     {
3691       reorder = (GtkTreeViewColumnReorder *) list->data;
3692       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3693         break;
3694       reorder = NULL;
3695     }
3696
3697   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3698       return;*/
3699
3700   tree_view->priv->cur_reorder = reorder;
3701   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3702 }
3703
3704 static void
3705 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3706 {
3707   GdkRectangle visible_rect;
3708   gint y;
3709   gint offset;
3710
3711   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3712   y += tree_view->priv->dy;
3713
3714   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3715
3716   /* see if we are near the edge. */
3717   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3718   if (offset > 0)
3719     {
3720       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3721       if (offset < 0)
3722         return;
3723     }
3724
3725   gtk_adjustment_set_value (tree_view->priv->vadjustment,
3726                             MAX (tree_view->priv->vadjustment->value + offset, 0.0));
3727 }
3728
3729 static gboolean
3730 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3731 {
3732   GdkRectangle visible_rect;
3733   gint x;
3734   gint offset;
3735
3736   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3737
3738   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3739
3740   /* See if we are near the edge. */
3741   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3742   if (offset > 0)
3743     {
3744       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3745       if (offset < 0)
3746         return TRUE;
3747     }
3748   offset = offset/3;
3749
3750   gtk_adjustment_set_value (tree_view->priv->hadjustment,
3751                             MAX (tree_view->priv->hadjustment->value + offset, 0.0));
3752
3753   return TRUE;
3754
3755 }
3756
3757 static gboolean
3758 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3759                                   GdkEventMotion *event)
3760 {
3761   GtkAllocation allocation, button_allocation;
3762   GtkTreeView *tree_view = (GtkTreeView *) widget;
3763   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3764   gint x, y;
3765
3766   /* Sanity Check */
3767   if ((column == NULL) ||
3768       (event->window != tree_view->priv->drag_window))
3769     return FALSE;
3770
3771   /* Handle moving the header */
3772   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3773   gtk_widget_get_allocation (widget, &allocation);
3774   gtk_widget_get_allocation (column->button, &button_allocation);
3775   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3776              MAX (tree_view->priv->width, allocation.width) - button_allocation.width);
3777   gdk_window_move (tree_view->priv->drag_window, x, y);
3778
3779   /* autoscroll, if needed */
3780   gtk_tree_view_horizontal_autoscroll (tree_view);
3781   /* Update the current reorder position and arrow; */
3782   gtk_tree_view_update_current_reorder (tree_view);
3783
3784   return TRUE;
3785 }
3786
3787 static void
3788 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3789 {
3790   remove_scroll_timeout (tree_view);
3791   gtk_grab_remove (GTK_WIDGET (tree_view));
3792
3793   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3794     {
3795       GtkTreePath *tmp_path;
3796
3797       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3798
3799       /* The anchor path should be set to the start path */
3800       tmp_path = _gtk_tree_view_find_path (tree_view,
3801                                            tree_view->priv->rubber_band_start_tree,
3802                                            tree_view->priv->rubber_band_start_node);
3803
3804       if (tree_view->priv->anchor)
3805         gtk_tree_row_reference_free (tree_view->priv->anchor);
3806
3807       tree_view->priv->anchor =
3808         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3809                                           tree_view->priv->model,
3810                                           tmp_path);
3811
3812       gtk_tree_path_free (tmp_path);
3813
3814       /* ... and the cursor to the end path */
3815       tmp_path = _gtk_tree_view_find_path (tree_view,
3816                                            tree_view->priv->rubber_band_end_tree,
3817                                            tree_view->priv->rubber_band_end_node);
3818       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3819       gtk_tree_path_free (tmp_path);
3820
3821       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3822     }
3823
3824   /* Clear status variables */
3825   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3826   tree_view->priv->rubber_band_shift = 0;
3827   tree_view->priv->rubber_band_ctrl = 0;
3828
3829   tree_view->priv->rubber_band_start_node = NULL;
3830   tree_view->priv->rubber_band_start_tree = NULL;
3831   tree_view->priv->rubber_band_end_node = NULL;
3832   tree_view->priv->rubber_band_end_tree = NULL;
3833 }
3834
3835 static void
3836 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3837                                                  GtkRBTree   *start_tree,
3838                                                  GtkRBNode   *start_node,
3839                                                  GtkRBTree   *end_tree,
3840                                                  GtkRBNode   *end_node,
3841                                                  gboolean     select,
3842                                                  gboolean     skip_start,
3843                                                  gboolean     skip_end)
3844 {
3845   if (start_node == end_node)
3846     return;
3847
3848   /* We skip the first node and jump inside the loop */
3849   if (skip_start)
3850     goto skip_first;
3851
3852   do
3853     {
3854       /* Small optimization by assuming insensitive nodes are never
3855        * selected.
3856        */
3857       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3858         {
3859           GtkTreePath *path;
3860           gboolean selectable;
3861
3862           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3863           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3864           gtk_tree_path_free (path);
3865
3866           if (!selectable)
3867             goto node_not_selectable;
3868         }
3869
3870       if (select)
3871         {
3872           if (tree_view->priv->rubber_band_shift)
3873             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3874           else if (tree_view->priv->rubber_band_ctrl)
3875             {
3876               /* Toggle the selection state */
3877               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3878                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3879               else
3880                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3881             }
3882           else
3883             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3884         }
3885       else
3886         {
3887           /* Mirror the above */
3888           if (tree_view->priv->rubber_band_shift)
3889             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3890           else if (tree_view->priv->rubber_band_ctrl)
3891             {
3892               /* Toggle the selection state */
3893               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3894                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3895               else
3896                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3897             }
3898           else
3899             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3900         }
3901
3902       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3903
3904 node_not_selectable:
3905       if (start_node == end_node)
3906         break;
3907
3908 skip_first:
3909
3910       if (start_node->children)
3911         {
3912           start_tree = start_node->children;
3913           start_node = start_tree->root;
3914           while (start_node->left != start_tree->nil)
3915             start_node = start_node->left;
3916         }
3917       else
3918         {
3919           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3920
3921           if (!start_tree)
3922             /* Ran out of tree */
3923             break;
3924         }
3925
3926       if (skip_end && start_node == end_node)
3927         break;
3928     }
3929   while (TRUE);
3930 }
3931
3932 static void
3933 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3934 {
3935   GtkRBTree *start_tree, *end_tree;
3936   GtkRBNode *start_node, *end_node;
3937
3938   _gtk_rbtree_find_offset (tree_view->priv->tree, MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &start_tree, &start_node);
3939   _gtk_rbtree_find_offset (tree_view->priv->tree, MAX (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &end_tree, &end_node);
3940
3941   /* Handle the start area first */
3942   if (!tree_view->priv->rubber_band_start_node)
3943     {
3944       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3945                                                        start_tree,
3946                                                        start_node,
3947                                                        end_tree,
3948                                                        end_node,
3949                                                        TRUE,
3950                                                        FALSE,
3951                                                        FALSE);
3952     }
3953   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3954            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3955     {
3956       /* New node is above the old one; selection became bigger */
3957       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3958                                                        start_tree,
3959                                                        start_node,
3960                                                        tree_view->priv->rubber_band_start_tree,
3961                                                        tree_view->priv->rubber_band_start_node,
3962                                                        TRUE,
3963                                                        FALSE,
3964                                                        TRUE);
3965     }
3966   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3967            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3968     {
3969       /* New node is below the old one; selection became smaller */
3970       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3971                                                        tree_view->priv->rubber_band_start_tree,
3972                                                        tree_view->priv->rubber_band_start_node,
3973                                                        start_tree,
3974                                                        start_node,
3975                                                        FALSE,
3976                                                        FALSE,
3977                                                        TRUE);
3978     }
3979
3980   tree_view->priv->rubber_band_start_tree = start_tree;
3981   tree_view->priv->rubber_band_start_node = start_node;
3982
3983   /* Next, handle the end area */
3984   if (!tree_view->priv->rubber_band_end_node)
3985     {
3986       /* In the event this happens, start_node was also NULL; this case is
3987        * handled above.
3988        */
3989     }
3990   else if (!end_node)
3991     {
3992       /* Find the last node in the tree */
3993       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3994                                &end_tree, &end_node);
3995
3996       /* Selection reached end of the tree */
3997       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3998                                                        tree_view->priv->rubber_band_end_tree,
3999                                                        tree_view->priv->rubber_band_end_node,
4000                                                        end_tree,
4001                                                        end_node,
4002                                                        TRUE,
4003                                                        TRUE,
4004                                                        FALSE);
4005     }
4006   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
4007            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
4008     {
4009       /* New node is below the old one; selection became bigger */
4010       gtk_tree_view_update_rubber_band_selection_range (tree_view,
4011                                                        tree_view->priv->rubber_band_end_tree,
4012                                                        tree_view->priv->rubber_band_end_node,
4013                                                        end_tree,
4014                                                        end_node,
4015                                                        TRUE,
4016                                                        TRUE,
4017                                                        FALSE);
4018     }
4019   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
4020            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
4021     {
4022       /* New node is above the old one; selection became smaller */
4023       gtk_tree_view_update_rubber_band_selection_range (tree_view,
4024                                                        end_tree,
4025                                                        end_node,
4026                                                        tree_view->priv->rubber_band_end_tree,
4027                                                        tree_view->priv->rubber_band_end_node,
4028                                                        FALSE,
4029                                                        TRUE,
4030                                                        FALSE);
4031     }
4032
4033   tree_view->priv->rubber_band_end_tree = end_tree;
4034   tree_view->priv->rubber_band_end_node = end_node;
4035 }
4036
4037 static void
4038 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
4039 {
4040   gint x, y;
4041   GdkRectangle old_area;
4042   GdkRectangle new_area;
4043   GdkRectangle common;
4044   cairo_region_t *invalid_region;
4045
4046   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4047   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4048   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
4049   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
4050
4051   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
4052
4053   x = MAX (x, 0);
4054   y = MAX (y, 0) + tree_view->priv->dy;
4055
4056   new_area.x = MIN (tree_view->priv->press_start_x, x);
4057   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
4058   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
4059   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
4060
4061   invalid_region = cairo_region_create_rectangle (&old_area);
4062   cairo_region_union_rectangle (invalid_region, &new_area);
4063
4064   gdk_rectangle_intersect (&old_area, &new_area, &common);
4065   if (common.width > 2 && common.height > 2)
4066     {
4067       cairo_region_t *common_region;
4068
4069       /* make sure the border is invalidated */
4070       common.x += 1;
4071       common.y += 1;
4072       common.width -= 2;
4073       common.height -= 2;
4074
4075       common_region = cairo_region_create_rectangle (&common);
4076
4077       cairo_region_subtract (invalid_region, common_region);
4078       cairo_region_destroy (common_region);
4079     }
4080
4081   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
4082
4083   cairo_region_destroy (invalid_region);
4084
4085   tree_view->priv->rubber_band_x = x;
4086   tree_view->priv->rubber_band_y = y;
4087
4088   gtk_tree_view_update_rubber_band_selection (tree_view);
4089 }
4090
4091 static void
4092 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
4093                                 GdkRectangle *area)
4094 {
4095   GtkStyle *style;
4096   cairo_t *cr;
4097   GdkRectangle rect;
4098   GdkRectangle rubber_rect;
4099
4100   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4101   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4102   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4103   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4104
4105   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4106     return;
4107
4108   cr = gdk_cairo_create (tree_view->priv->bin_window);
4109   cairo_set_line_width (cr, 1.0);
4110
4111   style = gtk_widget_get_style (GTK_WIDGET (tree_view));
4112
4113   cairo_set_source_rgba (cr,
4114                          style->fg[GTK_STATE_NORMAL].red / 65535.,
4115                          style->fg[GTK_STATE_NORMAL].green / 65535.,
4116                          style->fg[GTK_STATE_NORMAL].blue / 65535.,
4117                          .25);
4118
4119   gdk_cairo_rectangle (cr, &rect);
4120   cairo_clip (cr);
4121   cairo_paint (cr);
4122
4123   cairo_set_source_rgb (cr,
4124                         style->fg[GTK_STATE_NORMAL].red / 65535.,
4125                         style->fg[GTK_STATE_NORMAL].green / 65535.,
4126                         style->fg[GTK_STATE_NORMAL].blue / 65535.);
4127
4128   cairo_rectangle (cr,
4129                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4130                    rubber_rect.width - 1, rubber_rect.height - 1);
4131   cairo_stroke (cr);
4132
4133   cairo_destroy (cr);
4134 }
4135
4136 static gboolean
4137 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4138                                  GdkEventMotion *event)
4139 {
4140   GtkTreeView *tree_view;
4141   GtkRBTree *tree;
4142   GtkRBNode *node;
4143   gint new_y;
4144
4145   tree_view = (GtkTreeView *) widget;
4146
4147   if (tree_view->priv->tree == NULL)
4148     return FALSE;
4149
4150   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4151     {
4152       gtk_grab_add (GTK_WIDGET (tree_view));
4153       gtk_tree_view_update_rubber_band (tree_view);
4154
4155       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4156     }
4157   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4158     {
4159       gtk_tree_view_update_rubber_band (tree_view);
4160
4161       add_scroll_timeout (tree_view);
4162     }
4163
4164   /* only check for an initiated drag when a button is pressed */
4165   if (tree_view->priv->pressed_button >= 0
4166       && !tree_view->priv->rubber_band_status)
4167     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4168
4169   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4170   if (new_y < 0)
4171     new_y = 0;
4172
4173   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4174
4175   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4176   if ((tree_view->priv->button_pressed_node != NULL) &&
4177       (tree_view->priv->button_pressed_node != node))
4178     node = NULL;
4179
4180   tree_view->priv->event_last_x = event->x;
4181   tree_view->priv->event_last_y = event->y;
4182
4183   prelight_or_select (tree_view, tree, node, event->x, event->y);
4184
4185   return TRUE;
4186 }
4187
4188 static gboolean
4189 gtk_tree_view_motion (GtkWidget      *widget,
4190                       GdkEventMotion *event)
4191 {
4192   GtkTreeView *tree_view;
4193
4194   tree_view = (GtkTreeView *) widget;
4195
4196   /* Resizing a column */
4197   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4198     return gtk_tree_view_motion_resize_column (widget, event);
4199
4200   /* Drag column */
4201   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4202     return gtk_tree_view_motion_drag_column (widget, event);
4203
4204   /* Sanity check it */
4205   if (event->window == tree_view->priv->bin_window)
4206     return gtk_tree_view_motion_bin_window (widget, event);
4207
4208   return FALSE;
4209 }
4210
4211 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4212  * the tree is empty.
4213  */
4214 static void
4215 invalidate_empty_focus (GtkTreeView *tree_view)
4216 {
4217   GdkRectangle area;
4218
4219   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
4220     return;
4221
4222   area.x = 0;
4223   area.y = 0;
4224   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4225   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4226 }
4227
4228 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4229  * is empty.
4230  */
4231 static void
4232 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4233 {
4234   GtkWidget *widget = GTK_WIDGET (tree_view);
4235   gint w, h;
4236
4237   if (!gtk_widget_has_focus (widget))
4238     return;
4239
4240   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4241
4242   w -= 2;
4243   h -= 2;
4244
4245   if (w > 0 && h > 0)
4246     gtk_paint_focus (gtk_widget_get_style (widget),
4247                      tree_view->priv->bin_window,
4248                      gtk_widget_get_state (widget),
4249                      clip_area,
4250                      widget,
4251                      NULL,
4252                      1, 1, w, h);
4253 }
4254
4255 typedef enum {
4256   GTK_TREE_VIEW_GRID_LINE,
4257   GTK_TREE_VIEW_TREE_LINE,
4258   GTK_TREE_VIEW_FOREGROUND_LINE
4259 } GtkTreeViewLineType;
4260
4261 static void
4262 gtk_tree_view_draw_line (GtkTreeView         *tree_view,
4263                          GdkWindow           *window,
4264                          GtkTreeViewLineType  type,
4265                          int                  x1,
4266                          int                  y1,
4267                          int                  x2,
4268                          int                  y2)
4269 {
4270   cairo_t *cr;
4271
4272   cr = gdk_cairo_create (window);
4273
4274   switch (type)
4275     {
4276     case GTK_TREE_VIEW_TREE_LINE:
4277       cairo_set_source_rgb (cr, 0, 0, 0);
4278       cairo_set_line_width (cr, tree_view->priv->tree_line_width);
4279       if (tree_view->priv->tree_line_dashes[0])
4280         cairo_set_dash (cr,
4281                         tree_view->priv->tree_line_dashes,
4282                         2, 0.5);
4283       break;
4284     case GTK_TREE_VIEW_GRID_LINE:
4285       cairo_set_source_rgb (cr, 0, 0, 0);
4286       cairo_set_line_width (cr, tree_view->priv->grid_line_width);
4287       if (tree_view->priv->grid_line_dashes[0])
4288         cairo_set_dash (cr,
4289                         tree_view->priv->grid_line_dashes,
4290                         2, 0.5);
4291       break;
4292     default:
4293       g_assert_not_reached ();
4294       /* fall through */
4295     case GTK_TREE_VIEW_FOREGROUND_LINE:
4296       cairo_set_line_width (cr, 1.0);
4297       gdk_cairo_set_source_color (cr,
4298                                   &gtk_widget_get_style (GTK_WIDGET (tree_view))->fg[gtk_widget_get_state (GTK_WIDGET (tree_view))]);
4299       break;
4300     }
4301
4302   cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
4303   cairo_line_to (cr, x2 + 0.5, y2 + 0.5);
4304   cairo_stroke (cr);
4305
4306   cairo_destroy (cr);
4307 }
4308
4309 static void
4310 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4311                                GdkEventExpose *event,
4312                                gint            n_visible_columns)
4313 {
4314   GList *list = tree_view->priv->columns;
4315   gint i = 0;
4316   gint current_x = 0;
4317
4318   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4319       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4320     return;
4321
4322   /* Only draw the lines for visible rows and columns */
4323   for (list = tree_view->priv->columns; list; list = list->next, i++)
4324     {
4325       GtkTreeViewColumn *column = list->data;
4326
4327       /* We don't want a line for the last column */
4328       if (i == n_visible_columns - 1)
4329         break;
4330
4331       if (! column->visible)
4332         continue;
4333
4334       current_x += column->width;
4335
4336       gtk_tree_view_draw_line (tree_view, event->window,
4337                                GTK_TREE_VIEW_GRID_LINE,
4338                                current_x - 1, 0,
4339                                current_x - 1, tree_view->priv->height);
4340     }
4341 }
4342
4343 /* Warning: Very scary function.
4344  * Modify at your own risk
4345  *
4346  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4347  * FIXME: It's not...
4348  */
4349 static gboolean
4350 gtk_tree_view_bin_expose (GtkWidget      *widget,
4351                           GdkEventExpose *event)
4352 {
4353   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4354   GtkTreePath *path;
4355   GtkStyle *style;
4356   GtkRBTree *tree;
4357   GList *list;
4358   GtkRBNode *node;
4359   GtkRBNode *cursor = NULL;
4360   GtkRBTree *cursor_tree = NULL;
4361   GtkRBNode *drag_highlight = NULL;
4362   GtkRBTree *drag_highlight_tree = NULL;
4363   GtkTreeIter iter;
4364   gint new_y;
4365   gint y_offset, cell_offset;
4366   gint max_height;
4367   gint depth;
4368   GdkRectangle background_area;
4369   GdkRectangle cell_area;
4370   guint flags;
4371   gint highlight_x;
4372   gint expander_cell_width;
4373   gint bin_window_width;
4374   gint bin_window_height;
4375   GtkTreePath *cursor_path;
4376   GtkTreePath *drag_dest_path;
4377   GList *first_column, *last_column;
4378   gint vertical_separator;
4379   gint horizontal_separator;
4380   gint focus_line_width;
4381   gboolean allow_rules;
4382   gboolean has_special_cell;
4383   gboolean rtl;
4384   gint n_visible_columns;
4385   gint pointer_x, pointer_y;
4386   gint grid_line_width;
4387   gboolean got_pointer = FALSE;
4388   gboolean draw_vgrid_lines, draw_hgrid_lines;
4389   cairo_t *cr;
4390
4391   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4392
4393   gtk_widget_style_get (widget,
4394                         "horizontal-separator", &horizontal_separator,
4395                         "vertical-separator", &vertical_separator,
4396                         "allow-rules", &allow_rules,
4397                         "focus-line-width", &focus_line_width,
4398                         NULL);
4399
4400   if (tree_view->priv->tree == NULL)
4401     {
4402       draw_empty_focus (tree_view, &event->area);
4403       return TRUE;
4404     }
4405
4406   /* clip event->area to the visible area */
4407   if (event->area.height < 0)
4408     return TRUE;
4409
4410   validate_visible_area (tree_view);
4411
4412   cr = gdk_cairo_create (event->window);
4413   gdk_cairo_region (cr, event->region);
4414   cairo_clip (cr);
4415
4416   style = gtk_widget_get_style (widget);
4417
4418   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4419
4420   if (new_y < 0)
4421     new_y = 0;
4422   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4423   gdk_drawable_get_size (tree_view->priv->bin_window,
4424                          &bin_window_width, &bin_window_height);
4425
4426   if (tree_view->priv->height < bin_window_height)
4427     {
4428       gtk_paint_flat_box (style,
4429                           event->window,
4430                           gtk_widget_get_state (widget),
4431                           GTK_SHADOW_NONE,
4432                           &event->area,
4433                           widget,
4434                           "cell_even",
4435                           0, tree_view->priv->height,
4436                           bin_window_width,
4437                           bin_window_height - tree_view->priv->height);
4438     }
4439
4440   if (node == NULL)
4441     {
4442       cairo_destroy (cr);
4443       return TRUE;
4444     }
4445
4446   /* find the path for the node */
4447   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4448                                    tree,
4449                                    node);
4450   gtk_tree_model_get_iter (tree_view->priv->model,
4451                            &iter,
4452                            path);
4453   depth = gtk_tree_path_get_depth (path);
4454   gtk_tree_path_free (path);
4455
4456   cursor_path = NULL;
4457   drag_dest_path = NULL;
4458
4459   if (tree_view->priv->cursor)
4460     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4461
4462   if (cursor_path)
4463     _gtk_tree_view_find_node (tree_view, cursor_path,
4464                               &cursor_tree, &cursor);
4465
4466   if (tree_view->priv->drag_dest_row)
4467     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4468
4469   if (drag_dest_path)
4470     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4471                               &drag_highlight_tree, &drag_highlight);
4472
4473   draw_vgrid_lines =
4474     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4475     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4476   draw_hgrid_lines =
4477     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4478     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4479
4480   if (draw_vgrid_lines || draw_hgrid_lines)
4481     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4482
4483   n_visible_columns = 0;
4484   for (list = tree_view->priv->columns; list; list = list->next)
4485     {
4486       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4487         continue;
4488       n_visible_columns ++;
4489     }
4490
4491   /* Find the last column */
4492   for (last_column = g_list_last (tree_view->priv->columns);
4493        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4494        last_column = last_column->prev)
4495     ;
4496
4497   /* and the first */
4498   for (first_column = g_list_first (tree_view->priv->columns);
4499        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4500        first_column = first_column->next)
4501     ;
4502
4503   /* Actually process the expose event.  To do this, we want to
4504    * start at the first node of the event, and walk the tree in
4505    * order, drawing each successive node.
4506    */
4507
4508   do
4509     {
4510       gboolean parity;
4511       gboolean is_separator = FALSE;
4512       gboolean is_first = FALSE;
4513       gboolean is_last = FALSE;
4514
4515       is_separator = row_is_separator (tree_view, &iter, NULL);
4516
4517       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4518
4519       cell_offset = 0;
4520       highlight_x = 0; /* should match x coord of first cell */
4521       expander_cell_width = 0;
4522
4523       background_area.y = y_offset + event->area.y;
4524       background_area.height = max_height;
4525
4526       flags = 0;
4527
4528       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4529         flags |= GTK_CELL_RENDERER_PRELIT;
4530
4531       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4532         flags |= GTK_CELL_RENDERER_SELECTED;
4533
4534       parity = _gtk_rbtree_node_find_parity (tree, node);
4535
4536       /* we *need* to set cell data on all cells before the call
4537        * to _has_special_cell, else _has_special_cell() does not
4538        * return a correct value.
4539        */
4540       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4541            list;
4542            list = (rtl ? list->prev : list->next))
4543         {
4544           GtkTreeViewColumn *column = list->data;
4545           gtk_tree_view_column_cell_set_cell_data (column,
4546                                                    tree_view->priv->model,
4547                                                    &iter,
4548                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4549                                                    node->children?TRUE:FALSE);
4550         }
4551
4552       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4553
4554       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4555            list;
4556            list = (rtl ? list->prev : list->next))
4557         {
4558           GtkTreeViewColumn *column = list->data;
4559           const gchar *detail = NULL;
4560           gchar new_detail[128];
4561           GtkStateType state;
4562
4563           if (!column->visible)
4564             continue;
4565
4566           if (cell_offset > event->area.x + event->area.width ||
4567               cell_offset + column->width < event->area.x)
4568             {
4569               cell_offset += column->width;
4570               continue;
4571             }
4572
4573           if (column->show_sort_indicator)
4574             flags |= GTK_CELL_RENDERER_SORTED;
4575           else
4576             flags &= ~GTK_CELL_RENDERER_SORTED;
4577
4578           if (cursor == node)
4579             flags |= GTK_CELL_RENDERER_FOCUSED;
4580           else
4581             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4582
4583           background_area.x = cell_offset;
4584           background_area.width = column->width;
4585
4586           cell_area = background_area;
4587           cell_area.y += vertical_separator / 2;
4588           cell_area.x += horizontal_separator / 2;
4589           cell_area.height -= vertical_separator;
4590           cell_area.width -= horizontal_separator;
4591
4592           if (draw_vgrid_lines)
4593             {
4594               if (list == first_column)
4595                 {
4596                   cell_area.width -= grid_line_width / 2;
4597                 }
4598               else if (list == last_column)
4599                 {
4600                   cell_area.x += grid_line_width / 2;
4601                   cell_area.width -= grid_line_width / 2;
4602                 }
4603               else
4604                 {
4605                   cell_area.x += grid_line_width / 2;
4606                   cell_area.width -= grid_line_width;
4607                 }
4608             }
4609
4610           if (draw_hgrid_lines)
4611             {
4612               cell_area.y += grid_line_width / 2;
4613               cell_area.height -= grid_line_width;
4614             }
4615
4616           if (cairo_region_contains_rectangle (event->region, &background_area) == CAIRO_REGION_OVERLAP_OUT)
4617             {
4618               cell_offset += column->width;
4619               continue;
4620             }
4621
4622           gtk_tree_view_column_cell_set_cell_data (column,
4623                                                    tree_view->priv->model,
4624                                                    &iter,
4625                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4626                                                    node->children?TRUE:FALSE);
4627
4628           /* Select the detail for drawing the cell.  relevant
4629            * factors are parity, sortedness, and whether to
4630            * display rules.
4631            */
4632           if (allow_rules && tree_view->priv->has_rules)
4633             {
4634               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4635                   n_visible_columns >= 3)
4636                 {
4637                   if (parity)
4638                     detail = "cell_odd_ruled_sorted";
4639                   else
4640                     detail = "cell_even_ruled_sorted";
4641                 }
4642               else
4643                 {
4644                   if (parity)
4645                     detail = "cell_odd_ruled";
4646                   else
4647                     detail = "cell_even_ruled";
4648                 }
4649             }
4650           else
4651             {
4652               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4653                   n_visible_columns >= 3)
4654                 {
4655                   if (parity)
4656                     detail = "cell_odd_sorted";
4657                   else
4658                     detail = "cell_even_sorted";
4659                 }
4660               else
4661                 {
4662                   if (parity)
4663                     detail = "cell_odd";
4664                   else
4665                     detail = "cell_even";
4666                 }
4667             }
4668
4669           g_assert (detail);
4670
4671           if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
4672             state = GTK_STATE_INSENSITIVE;
4673           else if (flags & GTK_CELL_RENDERER_SELECTED)
4674             state = GTK_STATE_SELECTED;
4675           else
4676             state = GTK_STATE_NORMAL;
4677
4678           /* Draw background */
4679           is_first = (rtl ? !list->next : !list->prev);
4680           is_last = (rtl ? !list->prev : !list->next);
4681
4682           /* (I don't like the snprintfs either, but couldn't find a
4683            * less messy way).
4684            */
4685           if (is_first && is_last)
4686             g_snprintf (new_detail, 127, "%s", detail);
4687           else if (is_first)
4688             g_snprintf (new_detail, 127, "%s_start", detail);
4689           else if (is_last)
4690             g_snprintf (new_detail, 127, "%s_end", detail);
4691           else
4692             g_snprintf (new_detail, 127, "%s_middle", detail);
4693
4694           gtk_paint_flat_box (style,
4695                               event->window,
4696                               state,
4697                               GTK_SHADOW_NONE,
4698                               &event->area,
4699                               widget,
4700                               new_detail,
4701                               background_area.x,
4702                               background_area.y,
4703                               background_area.width,
4704                               background_area.height);
4705
4706           if (gtk_tree_view_is_expander_column (tree_view, column))
4707             {
4708               if (!rtl)
4709                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4710               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4711
4712               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4713                 {
4714                   if (!rtl)
4715                     cell_area.x += depth * tree_view->priv->expander_size;
4716                   cell_area.width -= depth * tree_view->priv->expander_size;
4717                 }
4718
4719               /* If we have an expander column, the highlight underline
4720                * starts with that column, so that it indicates which
4721                * level of the tree we're dropping at.
4722                */
4723               highlight_x = cell_area.x;
4724               expander_cell_width = cell_area.width;
4725
4726               if (is_separator)
4727                 gtk_paint_hline (style,
4728                                  event->window,
4729                                  state,
4730                                  &cell_area,
4731                                  widget,
4732                                  NULL,
4733                                  cell_area.x,
4734                                  cell_area.x + cell_area.width,
4735                                  cell_area.y + cell_area.height / 2);
4736               else
4737                 _gtk_tree_view_column_cell_render (column,
4738                                                    cr,
4739                                                    &background_area,
4740                                                    &cell_area,
4741                                                    flags);
4742               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4743                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4744                 {
4745                   if (!got_pointer)
4746                     {
4747                       gdk_window_get_pointer (tree_view->priv->bin_window,
4748                                               &pointer_x, &pointer_y, NULL);
4749                       got_pointer = TRUE;
4750                     }
4751
4752                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4753                                             tree,
4754                                             node,
4755                                             pointer_x, pointer_y);
4756                 }
4757             }
4758           else
4759             {
4760               if (is_separator)
4761                 gtk_paint_hline (style,
4762                                  event->window,
4763                                  state,
4764                                  &cell_area,
4765                                  widget,
4766                                  NULL,
4767                                  cell_area.x,
4768                                  cell_area.x + cell_area.width,
4769                                  cell_area.y + cell_area.height / 2);
4770               else
4771                 _gtk_tree_view_column_cell_render (column,
4772                                                    cr,
4773                                                    &background_area,
4774                                                    &cell_area,
4775                                                    flags);
4776             }
4777
4778           if (draw_hgrid_lines)
4779             {
4780               if (background_area.y > 0)
4781                 gtk_tree_view_draw_line (tree_view, event->window,
4782                                          GTK_TREE_VIEW_GRID_LINE,
4783                                          background_area.x, background_area.y,
4784                                          background_area.x + background_area.width,
4785                                          background_area.y);
4786
4787               if (y_offset + max_height >= event->area.height)
4788                 gtk_tree_view_draw_line (tree_view, event->window,
4789                                          GTK_TREE_VIEW_GRID_LINE,
4790                                          background_area.x, background_area.y + max_height,
4791                                          background_area.x + background_area.width,
4792                                          background_area.y + max_height);
4793             }
4794
4795           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4796               tree_view->priv->tree_lines_enabled)
4797             {
4798               gint x = background_area.x;
4799               gint mult = rtl ? -1 : 1;
4800               gint y0 = background_area.y;
4801               gint y1 = background_area.y + background_area.height/2;
4802               gint y2 = background_area.y + background_area.height;
4803
4804               if (rtl)
4805                 x += background_area.width - 1;
4806
4807               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4808                   && depth > 1)
4809                 {
4810                   gtk_tree_view_draw_line (tree_view, event->window,
4811                                            GTK_TREE_VIEW_TREE_LINE,
4812                                            x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4813                                            y1,
4814                                            x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4815                                            y1);
4816                 }
4817               else if (depth > 1)
4818                 {
4819                   gtk_tree_view_draw_line (tree_view, event->window,
4820                                            GTK_TREE_VIEW_TREE_LINE,
4821                                            x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4822                                            y1,
4823                                            x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4824                                            y1);
4825                 }
4826
4827               if (depth > 1)
4828                 {
4829                   gint i;
4830                   GtkRBNode *tmp_node;
4831                   GtkRBTree *tmp_tree;
4832
4833                   if (!_gtk_rbtree_next (tree, node))
4834                     gtk_tree_view_draw_line (tree_view, event->window,
4835                                              GTK_TREE_VIEW_TREE_LINE,
4836                                              x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4837                                              y0,
4838                                              x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4839                                              y1);
4840                   else
4841                     gtk_tree_view_draw_line (tree_view, event->window,
4842                                              GTK_TREE_VIEW_TREE_LINE,
4843                                              x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4844                                              y0,
4845                                              x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4846                                              y2);
4847
4848                   tmp_node = tree->parent_node;
4849                   tmp_tree = tree->parent_tree;
4850
4851                   for (i = depth - 2; i > 0; i--)
4852                     {
4853                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4854                         gtk_tree_view_draw_line (tree_view, event->window,
4855                                                  GTK_TREE_VIEW_TREE_LINE,
4856                                                  x + tree_view->priv->expander_size * (i - 0.5) * mult,
4857                                                  y0,
4858                                                  x + tree_view->priv->expander_size * (i - 0.5) * mult,
4859                                                  y2);
4860
4861                       tmp_node = tmp_tree->parent_node;
4862                       tmp_tree = tmp_tree->parent_tree;
4863                     }
4864                 }
4865             }
4866
4867           if (node == cursor && has_special_cell &&
4868               ((column == tree_view->priv->focus_column &&
4869                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4870                 gtk_widget_has_focus (widget)) ||
4871                (column == tree_view->priv->edited_column)))
4872             {
4873               _gtk_tree_view_column_cell_draw_focus (column,
4874                                                      cr,
4875                                                      &background_area,
4876                                                      &cell_area,
4877                                                      flags);
4878             }
4879
4880           cell_offset += column->width;
4881         }
4882
4883       if (node == drag_highlight)
4884         {
4885           /* Draw indicator for the drop
4886            */
4887           gint highlight_y = -1;
4888           GtkRBTree *tree = NULL;
4889           GtkRBNode *node = NULL;
4890           gint width;
4891
4892           switch (tree_view->priv->drag_dest_pos)
4893             {
4894             case GTK_TREE_VIEW_DROP_BEFORE:
4895               highlight_y = background_area.y - 1;
4896               if (highlight_y < 0)
4897                       highlight_y = 0;
4898               break;
4899
4900             case GTK_TREE_VIEW_DROP_AFTER:
4901               highlight_y = background_area.y + background_area.height - 1;
4902               break;
4903
4904             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4905             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4906               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4907
4908               if (tree == NULL)
4909                 break;
4910               gdk_drawable_get_size (tree_view->priv->bin_window,
4911                                      &width, NULL);
4912
4913               gtk_paint_focus (style,
4914                                tree_view->priv->bin_window,
4915                                gtk_widget_get_state (widget),
4916                                &event->area,
4917                                widget,
4918                                (is_first
4919                                 ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4920                                 : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4921                                 0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4922                                    - focus_line_width / 2,
4923                                 width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4924                                        - focus_line_width + 1);
4925               break;
4926             }
4927
4928           if (highlight_y >= 0)
4929             {
4930               gtk_tree_view_draw_line (tree_view, event->window,
4931                                        GTK_TREE_VIEW_FOREGROUND_LINE,
4932                                        rtl ? highlight_x + expander_cell_width : highlight_x,
4933                                        highlight_y,
4934                                        rtl ? 0 : bin_window_width,
4935                                        highlight_y);
4936             }
4937         }
4938
4939       /* draw the big row-spanning focus rectangle, if needed */
4940       if (!has_special_cell && node == cursor &&
4941           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4942           gtk_widget_has_focus (widget))
4943         {
4944           gint tmp_y, tmp_height;
4945           gint width;
4946           GtkStateType focus_rect_state;
4947
4948           focus_rect_state =
4949             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4950             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4951              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4952               GTK_STATE_NORMAL));
4953
4954           gdk_drawable_get_size (tree_view->priv->bin_window,
4955                                  &width, NULL);
4956
4957           if (draw_hgrid_lines)
4958             {
4959               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4960               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4961             }
4962           else
4963             {
4964               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4965               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4966             }
4967
4968           gtk_paint_focus (style,
4969                            tree_view->priv->bin_window,
4970                            focus_rect_state,
4971                            &event->area,
4972                            widget,
4973                            (is_first
4974                             ? (is_last ? "treeview" : "treeview-left" )
4975                             : (is_last ? "treeview-right" : "treeview-middle" )),
4976                            0, tmp_y,
4977                            width, tmp_height);
4978         }
4979
4980       y_offset += max_height;
4981       if (node->children)
4982         {
4983           GtkTreeIter parent = iter;
4984           gboolean has_child;
4985
4986           tree = node->children;
4987           node = tree->root;
4988
4989           g_assert (node != tree->nil);
4990
4991           while (node->left != tree->nil)
4992             node = node->left;
4993           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4994                                                     &iter,
4995                                                     &parent);
4996           depth++;
4997
4998           /* Sanity Check! */
4999           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
5000         }
5001       else
5002         {
5003           gboolean done = FALSE;
5004
5005           do
5006             {
5007               node = _gtk_rbtree_next (tree, node);
5008               if (node != NULL)
5009                 {
5010                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5011                   done = TRUE;
5012
5013                   /* Sanity Check! */
5014                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
5015                 }
5016               else
5017                 {
5018                   GtkTreeIter parent_iter = iter;
5019                   gboolean has_parent;
5020
5021                   node = tree->parent_node;
5022                   tree = tree->parent_tree;
5023                   if (tree == NULL)
5024                     /* we should go to done to free some memory */
5025                     goto done;
5026                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5027                                                            &iter,
5028                                                            &parent_iter);
5029                   depth--;
5030
5031                   /* Sanity check */
5032                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
5033                 }
5034             }
5035           while (!done);
5036         }
5037     }
5038   while (y_offset < event->area.height);
5039
5040 done:
5041   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
5042
5043   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
5044     {
5045       GdkRectangle rectangle;
5046       gint n_rectangles;
5047
5048       n_rectangles = cairo_region_num_rectangles (event->region);
5049
5050       while (n_rectangles--)
5051         {
5052           cairo_region_get_rectangle (event->region, n_rectangles, &rectangle);
5053           gtk_tree_view_paint_rubber_band (tree_view, &rectangle);
5054         }
5055     }
5056
5057   if (cursor_path)
5058     gtk_tree_path_free (cursor_path);
5059
5060   if (drag_dest_path)
5061     gtk_tree_path_free (drag_dest_path);
5062
5063   cairo_destroy (cr);
5064
5065   return FALSE;
5066 }
5067
5068 static gboolean
5069 gtk_tree_view_expose (GtkWidget      *widget,
5070                       GdkEventExpose *event)
5071 {
5072   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5073
5074   if (event->window == tree_view->priv->bin_window)
5075     {
5076       gboolean retval;
5077       GList *tmp_list;
5078
5079       retval = gtk_tree_view_bin_expose (widget, event);
5080
5081       /* We can't just chain up to Container::expose as it will try to send the
5082        * event to the headers, so we handle propagating it to our children
5083        * (eg. widgets being edited) ourselves.
5084        */
5085       tmp_list = tree_view->priv->children;
5086       while (tmp_list)
5087         {
5088           GtkTreeViewChild *child = tmp_list->data;
5089           tmp_list = tmp_list->next;
5090
5091           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
5092         }
5093
5094       return retval;
5095     }
5096
5097   else if (event->window == tree_view->priv->header_window)
5098     {
5099       GList *list;
5100
5101       for (list = tree_view->priv->columns; list != NULL; list = list->next)
5102         {
5103           GtkTreeViewColumn *column = list->data;
5104
5105           if (column == tree_view->priv->drag_column)
5106             continue;
5107
5108           if (column->visible)
5109             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5110                                             column->button,
5111                                             event);
5112         }
5113     }
5114   else if (event->window == tree_view->priv->drag_window)
5115     {
5116       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5117                                       tree_view->priv->drag_column->button,
5118                                       event);
5119     }
5120   return TRUE;
5121 }
5122
5123 enum
5124 {
5125   DROP_HOME,
5126   DROP_RIGHT,
5127   DROP_LEFT,
5128   DROP_END
5129 };
5130
5131 /* returns 0x1 when no column has been found -- yes it's hackish */
5132 static GtkTreeViewColumn *
5133 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5134                                GtkTreeViewColumn *column,
5135                                gint               drop_position)
5136 {
5137   GtkTreeViewColumn *left_column = NULL;
5138   GtkTreeViewColumn *cur_column = NULL;
5139   GList *tmp_list;
5140
5141   if (!column->reorderable)
5142     return (GtkTreeViewColumn *)0x1;
5143
5144   switch (drop_position)
5145     {
5146       case DROP_HOME:
5147         /* find first column where we can drop */
5148         tmp_list = tree_view->priv->columns;
5149         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5150           return (GtkTreeViewColumn *)0x1;
5151
5152         while (tmp_list)
5153           {
5154             g_assert (tmp_list);
5155
5156             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5157             tmp_list = tmp_list->next;
5158
5159             if (left_column && left_column->visible == FALSE)
5160               continue;
5161
5162             if (!tree_view->priv->column_drop_func)
5163               return left_column;
5164
5165             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5166               {
5167                 left_column = cur_column;
5168                 continue;
5169               }
5170
5171             return left_column;
5172           }
5173
5174         if (!tree_view->priv->column_drop_func)
5175           return left_column;
5176
5177         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5178           return left_column;
5179         else
5180           return (GtkTreeViewColumn *)0x1;
5181         break;
5182
5183       case DROP_RIGHT:
5184         /* find first column after column where we can drop */
5185         tmp_list = tree_view->priv->columns;
5186
5187         for (; tmp_list; tmp_list = tmp_list->next)
5188           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5189             break;
5190
5191         if (!tmp_list || !tmp_list->next)
5192           return (GtkTreeViewColumn *)0x1;
5193
5194         tmp_list = tmp_list->next;
5195         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5196         tmp_list = tmp_list->next;
5197
5198         while (tmp_list)
5199           {
5200             g_assert (tmp_list);
5201
5202             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5203             tmp_list = tmp_list->next;
5204
5205             if (left_column && left_column->visible == FALSE)
5206               {
5207                 left_column = cur_column;
5208                 if (tmp_list)
5209                   tmp_list = tmp_list->next;
5210                 continue;
5211               }
5212
5213             if (!tree_view->priv->column_drop_func)
5214               return left_column;
5215
5216             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5217               {
5218                 left_column = cur_column;
5219                 continue;
5220               }
5221
5222             return left_column;
5223           }
5224
5225         if (!tree_view->priv->column_drop_func)
5226           return left_column;
5227
5228         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5229           return left_column;
5230         else
5231           return (GtkTreeViewColumn *)0x1;
5232         break;
5233
5234       case DROP_LEFT:
5235         /* find first column before column where we can drop */
5236         tmp_list = tree_view->priv->columns;
5237
5238         for (; tmp_list; tmp_list = tmp_list->next)
5239           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5240             break;
5241
5242         if (!tmp_list || !tmp_list->prev)
5243           return (GtkTreeViewColumn *)0x1;
5244
5245         tmp_list = tmp_list->prev;
5246         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5247         tmp_list = tmp_list->prev;
5248
5249         while (tmp_list)
5250           {
5251             g_assert (tmp_list);
5252
5253             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5254
5255             if (left_column && !left_column->visible)
5256               {
5257                 /*if (!tmp_list->prev)
5258                   return (GtkTreeViewColumn *)0x1;
5259                   */
5260 /*
5261                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5262                 tmp_list = tmp_list->prev->prev;
5263                 continue;*/
5264
5265                 cur_column = left_column;
5266                 if (tmp_list)
5267                   tmp_list = tmp_list->prev;
5268                 continue;
5269               }
5270
5271             if (!tree_view->priv->column_drop_func)
5272               return left_column;
5273
5274             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5275               return left_column;
5276
5277             cur_column = left_column;
5278             tmp_list = tmp_list->prev;
5279           }
5280
5281         if (!tree_view->priv->column_drop_func)
5282           return NULL;
5283
5284         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5285           return NULL;
5286         else
5287           return (GtkTreeViewColumn *)0x1;
5288         break;
5289
5290       case DROP_END:
5291         /* same as DROP_HOME case, but doing it backwards */
5292         tmp_list = g_list_last (tree_view->priv->columns);
5293         cur_column = NULL;
5294
5295         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5296           return (GtkTreeViewColumn *)0x1;
5297
5298         while (tmp_list)
5299           {
5300             g_assert (tmp_list);
5301
5302             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5303
5304             if (left_column && !left_column->visible)
5305               {
5306                 cur_column = left_column;
5307                 tmp_list = tmp_list->prev;
5308               }
5309
5310             if (!tree_view->priv->column_drop_func)
5311               return left_column;
5312
5313             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5314               return left_column;
5315
5316             cur_column = left_column;
5317             tmp_list = tmp_list->prev;
5318           }
5319
5320         if (!tree_view->priv->column_drop_func)
5321           return NULL;
5322
5323         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5324           return NULL;
5325         else
5326           return (GtkTreeViewColumn *)0x1;
5327         break;
5328     }
5329
5330   return (GtkTreeViewColumn *)0x1;
5331 }
5332
5333 static gboolean
5334 gtk_tree_view_key_press (GtkWidget   *widget,
5335                          GdkEventKey *event)
5336 {
5337   GtkTreeView *tree_view = (GtkTreeView *) widget;
5338
5339   if (tree_view->priv->rubber_band_status)
5340     {
5341       if (event->keyval == GDK_KEY_Escape)
5342         gtk_tree_view_stop_rubber_band (tree_view);
5343
5344       return TRUE;
5345     }
5346
5347   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5348     {
5349       if (event->keyval == GDK_KEY_Escape)
5350         {
5351           tree_view->priv->cur_reorder = NULL;
5352           gtk_tree_view_button_release_drag_column (widget, NULL);
5353         }
5354       return TRUE;
5355     }
5356
5357   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5358     {
5359       GList *focus_column;
5360       gboolean rtl;
5361
5362       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5363
5364       for (focus_column = tree_view->priv->columns;
5365            focus_column;
5366            focus_column = focus_column->next)
5367         {
5368           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5369
5370           if (gtk_widget_has_focus (column->button))
5371             break;
5372         }
5373
5374       if (focus_column &&
5375           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5376           (event->keyval == GDK_KEY_Left || event->keyval == GDK_KEY_KP_Left
5377            || event->keyval == GDK_KEY_Right || event->keyval == GDK_KEY_KP_Right))
5378         {
5379           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5380
5381           if (!column->resizable)
5382             {
5383               gtk_widget_error_bell (widget);
5384               return TRUE;
5385             }
5386
5387           if (event->keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
5388               || event->keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
5389             {
5390               GtkRequisition button_req;
5391               gint old_width = column->resized_width;
5392
5393               gtk_size_request_get_size (GTK_SIZE_REQUEST (column->button), &button_req, NULL);
5394
5395               column->resized_width = MAX (column->resized_width,
5396                                            column->width);
5397               column->resized_width -= 2;
5398               if (column->resized_width < 0)
5399                 column->resized_width = 0;
5400
5401               if (column->min_width == -1)
5402                 column->resized_width = MAX (button_req.width,
5403                                              column->resized_width);
5404               else
5405                 {
5406                   column->resized_width = MAX (column->min_width,
5407                                                column->resized_width);
5408                 }
5409
5410               if (column->max_width != -1)
5411                 column->resized_width = MIN (column->resized_width,
5412                                              column->max_width);
5413
5414               column->use_resized_width = TRUE;
5415
5416               if (column->resized_width != old_width)
5417                 gtk_widget_queue_resize (widget);
5418               else
5419                 gtk_widget_error_bell (widget);
5420             }
5421           else if (event->keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
5422                    || event->keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
5423             {
5424               gint old_width = column->resized_width;
5425
5426               column->resized_width = MAX (column->resized_width,
5427                                            column->width);
5428               column->resized_width += 2;
5429
5430               if (column->max_width != -1)
5431                 column->resized_width = MIN (column->resized_width,
5432                                              column->max_width);
5433
5434               column->use_resized_width = TRUE;
5435
5436               if (column->resized_width != old_width)
5437                 gtk_widget_queue_resize (widget);
5438               else
5439                 gtk_widget_error_bell (widget);
5440             }
5441
5442           return TRUE;
5443         }
5444
5445       if (focus_column &&
5446           (event->state & GDK_MOD1_MASK) &&
5447           (event->keyval == GDK_KEY_Left || event->keyval == GDK_KEY_KP_Left
5448            || event->keyval == GDK_KEY_Right || event->keyval == GDK_KEY_KP_Right
5449            || event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_KP_Home
5450            || event->keyval == GDK_KEY_End || event->keyval == GDK_KEY_KP_End))
5451         {
5452           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5453
5454           if (event->keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
5455               || event->keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
5456             {
5457               GtkTreeViewColumn *col;
5458               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5459               if (col != (GtkTreeViewColumn *)0x1)
5460                 gtk_tree_view_move_column_after (tree_view, column, col);
5461               else
5462                 gtk_widget_error_bell (widget);
5463             }
5464           else if (event->keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
5465                    || event->keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
5466             {
5467               GtkTreeViewColumn *col;
5468               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5469               if (col != (GtkTreeViewColumn *)0x1)
5470                 gtk_tree_view_move_column_after (tree_view, column, col);
5471               else
5472                 gtk_widget_error_bell (widget);
5473             }
5474           else if (event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_KP_Home)
5475             {
5476               GtkTreeViewColumn *col;
5477               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5478               if (col != (GtkTreeViewColumn *)0x1)
5479                 gtk_tree_view_move_column_after (tree_view, column, col);
5480               else
5481                 gtk_widget_error_bell (widget);
5482             }
5483           else if (event->keyval == GDK_KEY_End || event->keyval == GDK_KEY_KP_End)
5484             {
5485               GtkTreeViewColumn *col;
5486               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5487               if (col != (GtkTreeViewColumn *)0x1)
5488                 gtk_tree_view_move_column_after (tree_view, column, col);
5489               else
5490                 gtk_widget_error_bell (widget);
5491             }
5492
5493           return TRUE;
5494         }
5495     }
5496
5497   /* Chain up to the parent class.  It handles the keybindings. */
5498   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5499     return TRUE;
5500
5501   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5502     {
5503       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5504       return FALSE;
5505     }
5506
5507   /* We pass the event to the search_entry.  If its text changes, then we start
5508    * the typeahead find capabilities. */
5509   if (gtk_widget_has_focus (GTK_WIDGET (tree_view))
5510       && tree_view->priv->enable_search
5511       && !tree_view->priv->search_custom_entry_set)
5512     {
5513       GdkEvent *new_event;
5514       char *old_text;
5515       const char *new_text;
5516       gboolean retval;
5517       GdkScreen *screen;
5518       gboolean text_modified;
5519       gulong popup_menu_id;
5520
5521       gtk_tree_view_ensure_interactive_directory (tree_view);
5522
5523       /* Make a copy of the current text */
5524       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5525       new_event = gdk_event_copy ((GdkEvent *) event);
5526       g_object_unref (((GdkEventKey *) new_event)->window);
5527       ((GdkEventKey *) new_event)->window = g_object_ref (gtk_widget_get_window (tree_view->priv->search_window));
5528       gtk_widget_realize (tree_view->priv->search_window);
5529
5530       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5531                                         "popup-menu", G_CALLBACK (gtk_true),
5532                                         NULL);
5533
5534       /* Move the entry off screen */
5535       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5536       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5537                        gdk_screen_get_width (screen) + 1,
5538                        gdk_screen_get_height (screen) + 1);
5539       gtk_widget_show (tree_view->priv->search_window);
5540
5541       /* Send the event to the window.  If the preedit_changed signal is emitted
5542        * during this event, we will set priv->imcontext_changed  */
5543       tree_view->priv->imcontext_changed = FALSE;
5544       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5545       gdk_event_free (new_event);
5546       gtk_widget_hide (tree_view->priv->search_window);
5547
5548       g_signal_handler_disconnect (tree_view->priv->search_entry,
5549                                    popup_menu_id);
5550
5551       /* We check to make sure that the entry tried to handle the text, and that
5552        * the text has changed.
5553        */
5554       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5555       text_modified = strcmp (old_text, new_text) != 0;
5556       g_free (old_text);
5557       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5558           (retval && text_modified))               /* ...or the text was modified */
5559         {
5560           if (gtk_tree_view_real_start_interactive_search (tree_view,
5561                                                            gdk_event_get_device ((GdkEvent *) event),
5562                                                            FALSE))
5563             {
5564               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5565               return TRUE;
5566             }
5567           else
5568             {
5569               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5570               return FALSE;
5571             }
5572         }
5573     }
5574
5575   return FALSE;
5576 }
5577
5578 static gboolean
5579 gtk_tree_view_key_release (GtkWidget   *widget,
5580                            GdkEventKey *event)
5581 {
5582   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5583
5584   if (tree_view->priv->rubber_band_status)
5585     return TRUE;
5586
5587   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5588 }
5589
5590 /* FIXME Is this function necessary? Can I get an enter_notify event
5591  * w/o either an expose event or a mouse motion event?
5592  */
5593 static gboolean
5594 gtk_tree_view_enter_notify (GtkWidget        *widget,
5595                             GdkEventCrossing *event)
5596 {
5597   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5598   GtkRBTree *tree;
5599   GtkRBNode *node;
5600   gint new_y;
5601
5602   /* Sanity check it */
5603   if (event->window != tree_view->priv->bin_window)
5604     return FALSE;
5605
5606   if (tree_view->priv->tree == NULL)
5607     return FALSE;
5608
5609   if (event->mode == GDK_CROSSING_GRAB ||
5610       event->mode == GDK_CROSSING_GTK_GRAB ||
5611       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5612       event->mode == GDK_CROSSING_STATE_CHANGED)
5613     return TRUE;
5614
5615   /* find the node internally */
5616   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5617   if (new_y < 0)
5618     new_y = 0;
5619   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5620
5621   tree_view->priv->event_last_x = event->x;
5622   tree_view->priv->event_last_y = event->y;
5623
5624   if ((tree_view->priv->button_pressed_node == NULL) ||
5625       (tree_view->priv->button_pressed_node == node))
5626     prelight_or_select (tree_view, tree, node, event->x, event->y);
5627
5628   return TRUE;
5629 }
5630
5631 static gboolean
5632 gtk_tree_view_leave_notify (GtkWidget        *widget,
5633                             GdkEventCrossing *event)
5634 {
5635   GtkTreeView *tree_view;
5636
5637   if (event->mode == GDK_CROSSING_GRAB)
5638     return TRUE;
5639
5640   tree_view = GTK_TREE_VIEW (widget);
5641
5642   if (tree_view->priv->prelight_node)
5643     _gtk_tree_view_queue_draw_node (tree_view,
5644                                    tree_view->priv->prelight_tree,
5645                                    tree_view->priv->prelight_node,
5646                                    NULL);
5647
5648   tree_view->priv->event_last_x = -10000;
5649   tree_view->priv->event_last_y = -10000;
5650
5651   prelight_or_select (tree_view,
5652                       NULL, NULL,
5653                       -1000, -1000); /* coords not possibly over an arrow */
5654
5655   return TRUE;
5656 }
5657
5658
5659 static gint
5660 gtk_tree_view_focus_out (GtkWidget     *widget,
5661                          GdkEventFocus *event)
5662 {
5663   GtkTreeView *tree_view;
5664
5665   tree_view = GTK_TREE_VIEW (widget);
5666
5667   gtk_widget_queue_draw (widget);
5668
5669   /* destroy interactive search dialog */
5670   if (tree_view->priv->search_window)
5671     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view,
5672                                       gdk_event_get_device ((GdkEvent *) event));
5673
5674   return FALSE;
5675 }
5676
5677
5678 /* Incremental Reflow
5679  */
5680
5681 static void
5682 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5683                                  GtkRBTree   *tree,
5684                                  GtkRBNode   *node)
5685 {
5686   GtkAllocation allocation;
5687   gint y;
5688
5689   y = _gtk_rbtree_node_find_offset (tree, node)
5690     - tree_view->priv->vadjustment->value
5691     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5692
5693   gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
5694   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5695                               0, y,
5696                               allocation.width,
5697                               GTK_RBNODE_GET_HEIGHT (node));
5698 }
5699
5700 static gboolean
5701 node_is_visible (GtkTreeView *tree_view,
5702                  GtkRBTree   *tree,
5703                  GtkRBNode   *node)
5704 {
5705   int y;
5706   int height;
5707
5708   y = _gtk_rbtree_node_find_offset (tree, node);
5709   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5710
5711   if (y >= tree_view->priv->vadjustment->value &&
5712       y + height <= (tree_view->priv->vadjustment->value
5713                      + tree_view->priv->vadjustment->page_size))
5714     return TRUE;
5715
5716   return FALSE;
5717 }
5718
5719 /* Returns TRUE if it updated the size
5720  */
5721 static gboolean
5722 validate_row (GtkTreeView *tree_view,
5723               GtkRBTree   *tree,
5724               GtkRBNode   *node,
5725               GtkTreeIter *iter,
5726               GtkTreePath *path)
5727 {
5728   GtkTreeViewColumn *column;
5729   GList *list, *first_column, *last_column;
5730   gint height = 0;
5731   gint horizontal_separator;
5732   gint vertical_separator;
5733   gint focus_line_width;
5734   gint depth = gtk_tree_path_get_depth (path);
5735   gboolean retval = FALSE;
5736   gboolean is_separator = FALSE;
5737   gboolean draw_vgrid_lines, draw_hgrid_lines;
5738   gint focus_pad;
5739   gint grid_line_width;
5740   gboolean wide_separators;
5741   gint separator_height;
5742
5743   /* double check the row needs validating */
5744   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5745       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5746     return FALSE;
5747
5748   is_separator = row_is_separator (tree_view, iter, NULL);
5749
5750   gtk_widget_style_get (GTK_WIDGET (tree_view),
5751                         "focus-padding", &focus_pad,
5752                         "focus-line-width", &focus_line_width,
5753                         "horizontal-separator", &horizontal_separator,
5754                         "vertical-separator", &vertical_separator,
5755                         "grid-line-width", &grid_line_width,
5756                         "wide-separators",  &wide_separators,
5757                         "separator-height", &separator_height,
5758                         NULL);
5759
5760   draw_vgrid_lines =
5761     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5762     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5763   draw_hgrid_lines =
5764     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5765     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5766
5767   for (last_column = g_list_last (tree_view->priv->columns);
5768        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5769        last_column = last_column->prev)
5770     ;
5771
5772   for (first_column = g_list_first (tree_view->priv->columns);
5773        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5774        first_column = first_column->next)
5775     ;
5776
5777   for (list = tree_view->priv->columns; list; list = list->next)
5778     {
5779       gint tmp_width;
5780       gint tmp_height;
5781
5782       column = list->data;
5783
5784       if (! column->visible)
5785         continue;
5786
5787       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5788         continue;
5789
5790       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5791                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5792                                                node->children?TRUE:FALSE);
5793       gtk_tree_view_column_cell_get_size (column,
5794                                           NULL, NULL, NULL,
5795                                           &tmp_width, &tmp_height);
5796
5797       if (!is_separator)
5798         {
5799           tmp_height += vertical_separator;
5800           height = MAX (height, tmp_height);
5801           height = MAX (height, tree_view->priv->expander_size);
5802         }
5803       else
5804         {
5805           if (wide_separators)
5806             height = separator_height + 2 * focus_pad;
5807           else
5808             height = 2 + 2 * focus_pad;
5809         }
5810
5811       if (gtk_tree_view_is_expander_column (tree_view, column))
5812         {
5813           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5814
5815           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5816             tmp_width += depth * tree_view->priv->expander_size;
5817         }
5818       else
5819         tmp_width = tmp_width + horizontal_separator;
5820
5821       if (draw_vgrid_lines)
5822         {
5823           if (list->data == first_column || list->data == last_column)
5824             tmp_width += grid_line_width / 2.0;
5825           else
5826             tmp_width += grid_line_width;
5827         }
5828
5829       if (tmp_width > column->requested_width)
5830         {
5831           retval = TRUE;
5832           column->requested_width = tmp_width;
5833         }
5834     }
5835
5836   if (draw_hgrid_lines)
5837     height += grid_line_width;
5838
5839   if (height != GTK_RBNODE_GET_HEIGHT (node))
5840     {
5841       retval = TRUE;
5842       _gtk_rbtree_node_set_height (tree, node, height);
5843     }
5844   _gtk_rbtree_node_mark_valid (tree, node);
5845   tree_view->priv->post_validation_flag = TRUE;
5846
5847   return retval;
5848 }
5849
5850
5851 static void
5852 validate_visible_area (GtkTreeView *tree_view)
5853 {
5854   GtkAllocation allocation;
5855   GtkTreePath *path = NULL;
5856   GtkTreePath *above_path = NULL;
5857   GtkTreeIter iter;
5858   GtkRBTree *tree = NULL;
5859   GtkRBNode *node = NULL;
5860   gboolean need_redraw = FALSE;
5861   gboolean size_changed = FALSE;
5862   gint total_height;
5863   gint area_above = 0;
5864   gint area_below = 0;
5865
5866   if (tree_view->priv->tree == NULL)
5867     return;
5868
5869   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5870       tree_view->priv->scroll_to_path == NULL)
5871     return;
5872
5873   gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
5874   total_height = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5875
5876   if (total_height == 0)
5877     return;
5878
5879   /* First, we check to see if we need to scroll anywhere
5880    */
5881   if (tree_view->priv->scroll_to_path)
5882     {
5883       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5884       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5885         {
5886           /* we are going to scroll, and will update dy */
5887           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5888           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5889               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5890             {
5891               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5892               if (validate_row (tree_view, tree, node, &iter, path))
5893                 size_changed = TRUE;
5894             }
5895
5896           if (tree_view->priv->scroll_to_use_align)
5897             {
5898               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5899               area_above = (total_height - height) *
5900                 tree_view->priv->scroll_to_row_align;
5901               area_below = total_height - area_above - height;
5902               area_above = MAX (area_above, 0);
5903               area_below = MAX (area_below, 0);
5904             }
5905           else
5906             {
5907               /* two cases:
5908                * 1) row not visible
5909                * 2) row visible
5910                */
5911               gint dy;
5912               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5913
5914               dy = _gtk_rbtree_node_find_offset (tree, node);
5915
5916               if (dy >= tree_view->priv->vadjustment->value &&
5917                   dy + height <= (tree_view->priv->vadjustment->value
5918                                   + tree_view->priv->vadjustment->page_size))
5919                 {
5920                   /* row visible: keep the row at the same position */
5921                   area_above = dy - tree_view->priv->vadjustment->value;
5922                   area_below = (tree_view->priv->vadjustment->value +
5923                                 tree_view->priv->vadjustment->page_size)
5924                                - dy - height;
5925                 }
5926               else
5927                 {
5928                   /* row not visible */
5929                   if (dy >= 0
5930                       && dy + height <= tree_view->priv->vadjustment->page_size)
5931                     {
5932                       /* row at the beginning -- fixed */
5933                       area_above = dy;
5934                       area_below = tree_view->priv->vadjustment->page_size
5935                                    - area_above - height;
5936                     }
5937                   else if (dy >= (tree_view->priv->vadjustment->upper -
5938                                   tree_view->priv->vadjustment->page_size))
5939                     {
5940                       /* row at the end -- fixed */
5941                       area_above = dy - (tree_view->priv->vadjustment->upper -
5942                                    tree_view->priv->vadjustment->page_size);
5943                       area_below = tree_view->priv->vadjustment->page_size -
5944                                    area_above - height;
5945
5946                       if (area_below < 0)
5947                         {
5948                           area_above = tree_view->priv->vadjustment->page_size - height;
5949                           area_below = 0;
5950                         }
5951                     }
5952                   else
5953                     {
5954                       /* row somewhere in the middle, bring it to the top
5955                        * of the view
5956                        */
5957                       area_above = 0;
5958                       area_below = total_height - height;
5959                     }
5960                 }
5961             }
5962         }
5963       else
5964         /* the scroll to isn't valid; ignore it.
5965          */
5966         {
5967           if (tree_view->priv->scroll_to_path && !path)
5968             {
5969               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5970               tree_view->priv->scroll_to_path = NULL;
5971             }
5972           if (path)
5973             gtk_tree_path_free (path);
5974           path = NULL;
5975         }
5976     }
5977
5978   /* We didn't have a scroll_to set, so we just handle things normally
5979    */
5980   if (path == NULL)
5981     {
5982       gint offset;
5983
5984       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5985                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5986                                         &tree, &node);
5987       if (node == NULL)
5988         {
5989           /* In this case, nothing has been validated */
5990           path = gtk_tree_path_new_first ();
5991           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5992         }
5993       else
5994         {
5995           path = _gtk_tree_view_find_path (tree_view, tree, node);
5996           total_height += offset;
5997         }
5998
5999       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6000
6001       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6002           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6003         {
6004           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6005           if (validate_row (tree_view, tree, node, &iter, path))
6006             size_changed = TRUE;
6007         }
6008       area_above = 0;
6009       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6010     }
6011
6012   above_path = gtk_tree_path_copy (path);
6013
6014   /* if we do not validate any row above the new top_row, we will make sure
6015    * that the row immediately above top_row has been validated. (if we do not
6016    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
6017    * when invalidated that row's height will be zero. and this will mess up
6018    * scrolling).
6019    */
6020   if (area_above == 0)
6021     {
6022       GtkRBTree *tmptree;
6023       GtkRBNode *tmpnode;
6024
6025       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
6026       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
6027
6028       if (tmpnode)
6029         {
6030           GtkTreePath *tmppath;
6031           GtkTreeIter tmpiter;
6032
6033           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
6034           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
6035
6036           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
6037               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
6038             {
6039               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
6040               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
6041                 size_changed = TRUE;
6042             }
6043
6044           gtk_tree_path_free (tmppath);
6045         }
6046     }
6047
6048   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
6049    * backwards is much slower then forward, as there is no iter_prev function.
6050    * We go forwards first in case we run out of tree.  Then we go backwards to
6051    * fill out the top.
6052    */
6053   while (node && area_below > 0)
6054     {
6055       if (node->children)
6056         {
6057           GtkTreeIter parent = iter;
6058           gboolean has_child;
6059
6060           tree = node->children;
6061           node = tree->root;
6062
6063           g_assert (node != tree->nil);
6064
6065           while (node->left != tree->nil)
6066             node = node->left;
6067           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
6068                                                     &iter,
6069                                                     &parent);
6070           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
6071           gtk_tree_path_down (path);
6072         }
6073       else
6074         {
6075           gboolean done = FALSE;
6076           do
6077             {
6078               node = _gtk_rbtree_next (tree, node);
6079               if (node != NULL)
6080                 {
6081                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
6082                   done = TRUE;
6083                   gtk_tree_path_next (path);
6084
6085                   /* Sanity Check! */
6086                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
6087                 }
6088               else
6089                 {
6090                   GtkTreeIter parent_iter = iter;
6091                   gboolean has_parent;
6092
6093                   node = tree->parent_node;
6094                   tree = tree->parent_tree;
6095                   if (tree == NULL)
6096                     break;
6097                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
6098                                                            &iter,
6099                                                            &parent_iter);
6100                   gtk_tree_path_up (path);
6101
6102                   /* Sanity check */
6103                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
6104                 }
6105             }
6106           while (!done);
6107         }
6108
6109       if (!node)
6110         break;
6111
6112       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6113           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6114         {
6115           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6116           if (validate_row (tree_view, tree, node, &iter, path))
6117               size_changed = TRUE;
6118         }
6119
6120       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6121     }
6122   gtk_tree_path_free (path);
6123
6124   /* If we ran out of tree, and have extra area_below left, we need to add it
6125    * to area_above */
6126   if (area_below > 0)
6127     area_above += area_below;
6128
6129   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
6130
6131   /* We walk backwards */
6132   while (area_above > 0)
6133     {
6134       _gtk_rbtree_prev_full (tree, node, &tree, &node);
6135
6136       /* Always find the new path in the tree.  We cannot just assume
6137        * a gtk_tree_path_prev() is enough here, as there might be children
6138        * in between this node and the previous sibling node.  If this
6139        * appears to be a performance hotspot in profiles, we can look into
6140        * intrigate logic for keeping path, node and iter in sync like
6141        * we do for forward walks.  (Which will be hard because of the lacking
6142        * iter_prev).
6143        */
6144
6145       if (node == NULL)
6146         break;
6147
6148       gtk_tree_path_free (above_path);
6149       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6150
6151       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6152
6153       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6154           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6155         {
6156           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6157           if (validate_row (tree_view, tree, node, &iter, above_path))
6158             size_changed = TRUE;
6159         }
6160       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6161     }
6162
6163   /* if we scrolled to a path, we need to set the dy here,
6164    * and sync the top row accordingly
6165    */
6166   if (tree_view->priv->scroll_to_path)
6167     {
6168       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6169       gtk_tree_view_top_row_to_dy (tree_view);
6170
6171       need_redraw = TRUE;
6172     }
6173   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6174     {
6175       /* when we are not scrolling, we should never set dy to something
6176        * else than zero. we update top_row to be in sync with dy = 0.
6177        */
6178       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6179       gtk_tree_view_dy_to_top_row (tree_view);
6180     }
6181   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6182     {
6183       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6184       gtk_tree_view_dy_to_top_row (tree_view);
6185     }
6186   else
6187     gtk_tree_view_top_row_to_dy (tree_view);
6188
6189   /* update width/height and queue a resize */
6190   if (size_changed)
6191     {
6192       GtkRequisition requisition;
6193
6194       /* We temporarily guess a size, under the assumption that it will be the
6195        * same when we get our next size_allocate.  If we don't do this, we'll be
6196        * in an inconsistent state if we call top_row_to_dy. */
6197
6198       gtk_size_request_get_size (GTK_SIZE_REQUEST (tree_view),
6199                                  &requisition, NULL);
6200       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6201       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6202       gtk_adjustment_changed (tree_view->priv->hadjustment);
6203       gtk_adjustment_changed (tree_view->priv->vadjustment);
6204       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6205     }
6206
6207   if (tree_view->priv->scroll_to_path)
6208     {
6209       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6210       tree_view->priv->scroll_to_path = NULL;
6211     }
6212
6213   if (above_path)
6214     gtk_tree_path_free (above_path);
6215
6216   if (tree_view->priv->scroll_to_column)
6217     {
6218       tree_view->priv->scroll_to_column = NULL;
6219     }
6220   if (need_redraw)
6221     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6222 }
6223
6224 static void
6225 initialize_fixed_height_mode (GtkTreeView *tree_view)
6226 {
6227   if (!tree_view->priv->tree)
6228     return;
6229
6230   if (tree_view->priv->fixed_height < 0)
6231     {
6232       GtkTreeIter iter;
6233       GtkTreePath *path;
6234
6235       GtkRBTree *tree = NULL;
6236       GtkRBNode *node = NULL;
6237
6238       tree = tree_view->priv->tree;
6239       node = tree->root;
6240
6241       path = _gtk_tree_view_find_path (tree_view, tree, node);
6242       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6243
6244       validate_row (tree_view, tree, node, &iter, path);
6245
6246       gtk_tree_path_free (path);
6247
6248       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6249     }
6250
6251    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6252                                  tree_view->priv->fixed_height, TRUE);
6253 }
6254
6255 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6256  * the left-most uninvalidated node.  We then try walking right, validating
6257  * nodes.  Once we find a valid node, we repeat the previous process of finding
6258  * the first invalid node.
6259  */
6260
6261 static gboolean
6262 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6263 {
6264   GtkRBTree *tree = NULL;
6265   GtkRBNode *node = NULL;
6266   gboolean validated_area = FALSE;
6267   gint retval = TRUE;
6268   GtkTreePath *path = NULL;
6269   GtkTreeIter iter;
6270   GTimer *timer;
6271   gint i = 0;
6272
6273   gint prev_height = -1;
6274   gboolean fixed_height = TRUE;
6275
6276   g_assert (tree_view);
6277
6278   if (tree_view->priv->tree == NULL)
6279       return FALSE;
6280
6281   if (tree_view->priv->fixed_height_mode)
6282     {
6283       if (tree_view->priv->fixed_height < 0)
6284         initialize_fixed_height_mode (tree_view);
6285
6286       return FALSE;
6287     }
6288
6289   timer = g_timer_new ();
6290   g_timer_start (timer);
6291
6292   do
6293     {
6294       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6295         {
6296           retval = FALSE;
6297           goto done;
6298         }
6299
6300       if (path != NULL)
6301         {
6302           node = _gtk_rbtree_next (tree, node);
6303           if (node != NULL)
6304             {
6305               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6306               gtk_tree_path_next (path);
6307             }
6308           else
6309             {
6310               gtk_tree_path_free (path);
6311               path = NULL;
6312             }
6313         }
6314
6315       if (path == NULL)
6316         {
6317           tree = tree_view->priv->tree;
6318           node = tree_view->priv->tree->root;
6319
6320           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6321
6322           do
6323             {
6324               if (node->left != tree->nil &&
6325                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6326                 {
6327                   node = node->left;
6328                 }
6329               else if (node->right != tree->nil &&
6330                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6331                 {
6332                   node = node->right;
6333                 }
6334               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6335                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6336                 {
6337                   break;
6338                 }
6339               else if (node->children != NULL)
6340                 {
6341                   tree = node->children;
6342                   node = tree->root;
6343                 }
6344               else
6345                 /* RBTree corruption!  All bad */
6346                 g_assert_not_reached ();
6347             }
6348           while (TRUE);
6349           path = _gtk_tree_view_find_path (tree_view, tree, node);
6350           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6351         }
6352
6353       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6354                        validated_area;
6355
6356       if (!tree_view->priv->fixed_height_check)
6357         {
6358           gint height;
6359
6360           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6361           if (prev_height < 0)
6362             prev_height = height;
6363           else if (prev_height != height)
6364             fixed_height = FALSE;
6365         }
6366
6367       i++;
6368     }
6369   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6370
6371   if (!tree_view->priv->fixed_height_check)
6372    {
6373      if (fixed_height)
6374        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6375
6376      tree_view->priv->fixed_height_check = 1;
6377    }
6378
6379  done:
6380   if (validated_area)
6381     {
6382       GtkRequisition requisition;
6383       /* We temporarily guess a size, under the assumption that it will be the
6384        * same when we get our next size_allocate.  If we don't do this, we'll be
6385        * in an inconsistent state when we call top_row_to_dy. */
6386
6387       gtk_size_request_get_size (GTK_SIZE_REQUEST (tree_view),
6388                                  &requisition, NULL);
6389       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6390       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6391       gtk_adjustment_changed (tree_view->priv->hadjustment);
6392       gtk_adjustment_changed (tree_view->priv->vadjustment);
6393
6394       if (queue_resize)
6395         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6396     }
6397
6398   if (path) gtk_tree_path_free (path);
6399   g_timer_destroy (timer);
6400
6401   return retval;
6402 }
6403
6404 static gboolean
6405 validate_rows (GtkTreeView *tree_view)
6406 {
6407   gboolean retval;
6408
6409   retval = do_validate_rows (tree_view, TRUE);
6410
6411   if (! retval && tree_view->priv->validate_rows_timer)
6412     {
6413       g_source_remove (tree_view->priv->validate_rows_timer);
6414       tree_view->priv->validate_rows_timer = 0;
6415     }
6416
6417   return retval;
6418 }
6419
6420 static gboolean
6421 validate_rows_handler (GtkTreeView *tree_view)
6422 {
6423   gboolean retval;
6424
6425   retval = do_validate_rows (tree_view, TRUE);
6426   if (! retval && tree_view->priv->validate_rows_timer)
6427     {
6428       g_source_remove (tree_view->priv->validate_rows_timer);
6429       tree_view->priv->validate_rows_timer = 0;
6430     }
6431
6432   return retval;
6433 }
6434
6435 static gboolean
6436 do_presize_handler (GtkTreeView *tree_view)
6437 {
6438   if (tree_view->priv->mark_rows_col_dirty)
6439     {
6440       if (tree_view->priv->tree)
6441         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6442       tree_view->priv->mark_rows_col_dirty = FALSE;
6443     }
6444   validate_visible_area (tree_view);
6445   tree_view->priv->presize_handler_timer = 0;
6446
6447   if (tree_view->priv->fixed_height_mode)
6448     {
6449       GtkRequisition requisition;
6450
6451       gtk_size_request_get_size (GTK_SIZE_REQUEST (tree_view),
6452                                  &requisition, NULL);
6453
6454       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6455       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6456       gtk_adjustment_changed (tree_view->priv->hadjustment);
6457       gtk_adjustment_changed (tree_view->priv->vadjustment);
6458       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6459     }
6460
6461   return FALSE;
6462 }
6463
6464 static gboolean
6465 presize_handler_callback (gpointer data)
6466 {
6467   do_presize_handler (GTK_TREE_VIEW (data));
6468
6469   return FALSE;
6470 }
6471
6472 static void
6473 install_presize_handler (GtkTreeView *tree_view)
6474 {
6475   if (! gtk_widget_get_realized (GTK_WIDGET (tree_view)))
6476     return;
6477
6478   if (! tree_view->priv->presize_handler_timer)
6479     {
6480       tree_view->priv->presize_handler_timer =
6481         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6482     }
6483   if (! tree_view->priv->validate_rows_timer)
6484     {
6485       tree_view->priv->validate_rows_timer =
6486         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6487     }
6488 }
6489
6490 static gboolean
6491 scroll_sync_handler (GtkTreeView *tree_view)
6492 {
6493   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6494     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6495   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6496     gtk_tree_view_top_row_to_dy (tree_view);
6497   else
6498     gtk_tree_view_dy_to_top_row (tree_view);
6499
6500   tree_view->priv->scroll_sync_timer = 0;
6501
6502   return FALSE;
6503 }
6504
6505 static void
6506 install_scroll_sync_handler (GtkTreeView *tree_view)
6507 {
6508   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
6509     return;
6510
6511   if (!tree_view->priv->scroll_sync_timer)
6512     {
6513       tree_view->priv->scroll_sync_timer =
6514         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6515     }
6516 }
6517
6518 static void
6519 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6520                            GtkTreePath *path,
6521                            gint         offset)
6522 {
6523   gtk_tree_row_reference_free (tree_view->priv->top_row);
6524
6525   if (!path)
6526     {
6527       tree_view->priv->top_row = NULL;
6528       tree_view->priv->top_row_dy = 0;
6529     }
6530   else
6531     {
6532       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6533       tree_view->priv->top_row_dy = offset;
6534     }
6535 }
6536
6537 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6538  * it's set to be NULL, and top_row_dy is 0;
6539  */
6540 static void
6541 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6542 {
6543   gint offset;
6544   GtkTreePath *path;
6545   GtkRBTree *tree;
6546   GtkRBNode *node;
6547
6548   if (tree_view->priv->tree == NULL)
6549     {
6550       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6551     }
6552   else
6553     {
6554       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6555                                         tree_view->priv->dy,
6556                                         &tree, &node);
6557
6558       if (tree == NULL)
6559         {
6560           gtk_tree_view_set_top_row (tree_view, NULL, 0);
6561         }
6562       else
6563         {
6564           path = _gtk_tree_view_find_path (tree_view, tree, node);
6565           gtk_tree_view_set_top_row (tree_view, path, offset);
6566           gtk_tree_path_free (path);
6567         }
6568     }
6569 }
6570
6571 static void
6572 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6573 {
6574   GtkTreePath *path;
6575   GtkRBTree *tree;
6576   GtkRBNode *node;
6577   int new_dy;
6578
6579   /* Avoid recursive calls */
6580   if (tree_view->priv->in_top_row_to_dy)
6581     return;
6582
6583   if (tree_view->priv->top_row)
6584     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6585   else
6586     path = NULL;
6587
6588   if (!path)
6589     tree = NULL;
6590   else
6591     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6592
6593   if (path)
6594     gtk_tree_path_free (path);
6595
6596   if (tree == NULL)
6597     {
6598       /* keep dy and set new toprow */
6599       gtk_tree_row_reference_free (tree_view->priv->top_row);
6600       tree_view->priv->top_row = NULL;
6601       tree_view->priv->top_row_dy = 0;
6602       /* DO NOT install the idle handler */
6603       gtk_tree_view_dy_to_top_row (tree_view);
6604       return;
6605     }
6606
6607   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6608       < tree_view->priv->top_row_dy)
6609     {
6610       /* new top row -- do NOT install the idle handler */
6611       gtk_tree_view_dy_to_top_row (tree_view);
6612       return;
6613     }
6614
6615   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6616   new_dy += tree_view->priv->top_row_dy;
6617
6618   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6619     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6620
6621   new_dy = MAX (0, new_dy);
6622
6623   tree_view->priv->in_top_row_to_dy = TRUE;
6624   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6625   tree_view->priv->in_top_row_to_dy = FALSE;
6626 }
6627
6628
6629 void
6630 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6631 {
6632   tree_view->priv->mark_rows_col_dirty = TRUE;
6633
6634   install_presize_handler (tree_view);
6635 }
6636
6637 /*
6638  * This function works synchronously (due to the while (validate_rows...)
6639  * loop).
6640  *
6641  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6642  * here. You now need to check that yourself.
6643  */
6644 void
6645 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6646                                 GtkTreeViewColumn *column)
6647 {
6648   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6649   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6650
6651   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6652
6653   do_presize_handler (tree_view);
6654   while (validate_rows (tree_view));
6655
6656   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6657 }
6658
6659 /* Drag-and-drop */
6660
6661 static void
6662 set_source_row (GdkDragContext *context,
6663                 GtkTreeModel   *model,
6664                 GtkTreePath    *source_row)
6665 {
6666   g_object_set_data_full (G_OBJECT (context),
6667                           I_("gtk-tree-view-source-row"),
6668                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6669                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6670 }
6671
6672 static GtkTreePath*
6673 get_source_row (GdkDragContext *context)
6674 {
6675   GtkTreeRowReference *ref =
6676     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6677
6678   if (ref)
6679     return gtk_tree_row_reference_get_path (ref);
6680   else
6681     return NULL;
6682 }
6683
6684 typedef struct
6685 {
6686   GtkTreeRowReference *dest_row;
6687   guint                path_down_mode   : 1;
6688   guint                empty_view_drop  : 1;
6689   guint                drop_append_mode : 1;
6690 }
6691 DestRow;
6692
6693 static void
6694 dest_row_free (gpointer data)
6695 {
6696   DestRow *dr = (DestRow *)data;
6697
6698   gtk_tree_row_reference_free (dr->dest_row);
6699   g_slice_free (DestRow, dr);
6700 }
6701
6702 static void
6703 set_dest_row (GdkDragContext *context,
6704               GtkTreeModel   *model,
6705               GtkTreePath    *dest_row,
6706               gboolean        path_down_mode,
6707               gboolean        empty_view_drop,
6708               gboolean        drop_append_mode)
6709 {
6710   DestRow *dr;
6711
6712   if (!dest_row)
6713     {
6714       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6715                               NULL, NULL);
6716       return;
6717     }
6718
6719   dr = g_slice_new (DestRow);
6720
6721   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6722   dr->path_down_mode = path_down_mode != FALSE;
6723   dr->empty_view_drop = empty_view_drop != FALSE;
6724   dr->drop_append_mode = drop_append_mode != FALSE;
6725
6726   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6727                           dr, (GDestroyNotify) dest_row_free);
6728 }
6729
6730 static GtkTreePath*
6731 get_dest_row (GdkDragContext *context,
6732               gboolean       *path_down_mode)
6733 {
6734   DestRow *dr =
6735     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6736
6737   if (dr)
6738     {
6739       GtkTreePath *path = NULL;
6740
6741       if (path_down_mode)
6742         *path_down_mode = dr->path_down_mode;
6743
6744       if (dr->dest_row)
6745         path = gtk_tree_row_reference_get_path (dr->dest_row);
6746       else if (dr->empty_view_drop)
6747         path = gtk_tree_path_new_from_indices (0, -1);
6748       else
6749         path = NULL;
6750
6751       if (path && dr->drop_append_mode)
6752         gtk_tree_path_next (path);
6753
6754       return path;
6755     }
6756   else
6757     return NULL;
6758 }
6759
6760 /* Get/set whether drag_motion requested the drag data and
6761  * drag_data_received should thus not actually insert the data,
6762  * since the data doesn't result from a drop.
6763  */
6764 static void
6765 set_status_pending (GdkDragContext *context,
6766                     GdkDragAction   suggested_action)
6767 {
6768   g_object_set_data (G_OBJECT (context),
6769                      I_("gtk-tree-view-status-pending"),
6770                      GINT_TO_POINTER (suggested_action));
6771 }
6772
6773 static GdkDragAction
6774 get_status_pending (GdkDragContext *context)
6775 {
6776   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6777                                              "gtk-tree-view-status-pending"));
6778 }
6779
6780 static TreeViewDragInfo*
6781 get_info (GtkTreeView *tree_view)
6782 {
6783   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6784 }
6785
6786 static void
6787 destroy_info (TreeViewDragInfo *di)
6788 {
6789   g_slice_free (TreeViewDragInfo, di);
6790 }
6791
6792 static TreeViewDragInfo*
6793 ensure_info (GtkTreeView *tree_view)
6794 {
6795   TreeViewDragInfo *di;
6796
6797   di = get_info (tree_view);
6798
6799   if (di == NULL)
6800     {
6801       di = g_slice_new0 (TreeViewDragInfo);
6802
6803       g_object_set_data_full (G_OBJECT (tree_view),
6804                               I_("gtk-tree-view-drag-info"),
6805                               di,
6806                               (GDestroyNotify) destroy_info);
6807     }
6808
6809   return di;
6810 }
6811
6812 static void
6813 remove_info (GtkTreeView *tree_view)
6814 {
6815   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6816 }
6817
6818 #if 0
6819 static gint
6820 drag_scan_timeout (gpointer data)
6821 {
6822   GtkTreeView *tree_view;
6823   gint x, y;
6824   GdkModifierType state;
6825   GtkTreePath *path = NULL;
6826   GtkTreeViewColumn *column = NULL;
6827   GdkRectangle visible_rect;
6828
6829   GDK_THREADS_ENTER ();
6830
6831   tree_view = GTK_TREE_VIEW (data);
6832
6833   gdk_window_get_pointer (tree_view->priv->bin_window,
6834                           &x, &y, &state);
6835
6836   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6837
6838   /* See if we are near the edge. */
6839   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6840       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6841       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6842       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6843     {
6844       gtk_tree_view_get_path_at_pos (tree_view,
6845                                      tree_view->priv->bin_window,
6846                                      x, y,
6847                                      &path,
6848                                      &column,
6849                                      NULL,
6850                                      NULL);
6851
6852       if (path != NULL)
6853         {
6854           gtk_tree_view_scroll_to_cell (tree_view,
6855                                         path,
6856                                         column,
6857                                         TRUE,
6858                                         0.5, 0.5);
6859
6860           gtk_tree_path_free (path);
6861         }
6862     }
6863
6864   GDK_THREADS_LEAVE ();
6865
6866   return TRUE;
6867 }
6868 #endif /* 0 */
6869
6870 static void
6871 add_scroll_timeout (GtkTreeView *tree_view)
6872 {
6873   if (tree_view->priv->scroll_timeout == 0)
6874     {
6875       tree_view->priv->scroll_timeout =
6876         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6877     }
6878 }
6879
6880 static void
6881 remove_scroll_timeout (GtkTreeView *tree_view)
6882 {
6883   if (tree_view->priv->scroll_timeout != 0)
6884     {
6885       g_source_remove (tree_view->priv->scroll_timeout);
6886       tree_view->priv->scroll_timeout = 0;
6887     }
6888 }
6889
6890 static gboolean
6891 check_model_dnd (GtkTreeModel *model,
6892                  GType         required_iface,
6893                  const gchar  *signal)
6894 {
6895   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6896     {
6897       g_warning ("You must override the default '%s' handler "
6898                  "on GtkTreeView when using models that don't support "
6899                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6900                  "is to connect to '%s' and call "
6901                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6902                  "the default handler from running. Look at the source code "
6903                  "for the default handler in gtktreeview.c to get an idea what "
6904                  "your handler should do. (gtktreeview.c is in the GTK source "
6905                  "code.) If you're using GTK from a language other than C, "
6906                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6907                  signal, g_type_name (required_iface), signal);
6908       return FALSE;
6909     }
6910   else
6911     return TRUE;
6912 }
6913
6914 static void
6915 remove_open_timeout (GtkTreeView *tree_view)
6916 {
6917   if (tree_view->priv->open_dest_timeout != 0)
6918     {
6919       g_source_remove (tree_view->priv->open_dest_timeout);
6920       tree_view->priv->open_dest_timeout = 0;
6921     }
6922 }
6923
6924
6925 static gint
6926 open_row_timeout (gpointer data)
6927 {
6928   GtkTreeView *tree_view = data;
6929   GtkTreePath *dest_path = NULL;
6930   GtkTreeViewDropPosition pos;
6931   gboolean result = FALSE;
6932
6933   gtk_tree_view_get_drag_dest_row (tree_view,
6934                                    &dest_path,
6935                                    &pos);
6936
6937   if (dest_path &&
6938       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6939        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6940     {
6941       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6942       tree_view->priv->open_dest_timeout = 0;
6943
6944       gtk_tree_path_free (dest_path);
6945     }
6946   else
6947     {
6948       if (dest_path)
6949         gtk_tree_path_free (dest_path);
6950
6951       result = TRUE;
6952     }
6953
6954   return result;
6955 }
6956
6957 static gboolean
6958 scroll_row_timeout (gpointer data)
6959 {
6960   GtkTreeView *tree_view = data;
6961
6962   gtk_tree_view_vertical_autoscroll (tree_view);
6963
6964   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6965     gtk_tree_view_update_rubber_band (tree_view);
6966
6967   return TRUE;
6968 }
6969
6970 /* Returns TRUE if event should not be propagated to parent widgets */
6971 static gboolean
6972 set_destination_row (GtkTreeView    *tree_view,
6973                      GdkDragContext *context,
6974                      /* coordinates relative to the widget */
6975                      gint            x,
6976                      gint            y,
6977                      GdkDragAction  *suggested_action,
6978                      GdkAtom        *target)
6979 {
6980   GtkTreePath *path = NULL;
6981   GtkTreeViewDropPosition pos;
6982   GtkTreeViewDropPosition old_pos;
6983   TreeViewDragInfo *di;
6984   GtkWidget *widget;
6985   GtkTreePath *old_dest_path = NULL;
6986   gboolean can_drop = FALSE;
6987
6988   *suggested_action = 0;
6989   *target = GDK_NONE;
6990
6991   widget = GTK_WIDGET (tree_view);
6992
6993   di = get_info (tree_view);
6994
6995   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6996     {
6997       /* someone unset us as a drag dest, note that if
6998        * we return FALSE drag_leave isn't called
6999        */
7000
7001       gtk_tree_view_set_drag_dest_row (tree_view,
7002                                        NULL,
7003                                        GTK_TREE_VIEW_DROP_BEFORE);
7004
7005       remove_scroll_timeout (GTK_TREE_VIEW (widget));
7006       remove_open_timeout (GTK_TREE_VIEW (widget));
7007
7008       return FALSE; /* no longer a drop site */
7009     }
7010
7011   *target = gtk_drag_dest_find_target (widget, context,
7012                                        gtk_drag_dest_get_target_list (widget));
7013   if (*target == GDK_NONE)
7014     {
7015       return FALSE;
7016     }
7017
7018   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
7019                                           x, y,
7020                                           &path,
7021                                           &pos))
7022     {
7023       gint n_children;
7024       GtkTreeModel *model;
7025
7026       remove_open_timeout (tree_view);
7027
7028       /* the row got dropped on empty space, let's setup a special case
7029        */
7030
7031       if (path)
7032         gtk_tree_path_free (path);
7033
7034       model = gtk_tree_view_get_model (tree_view);
7035
7036       n_children = gtk_tree_model_iter_n_children (model, NULL);
7037       if (n_children)
7038         {
7039           pos = GTK_TREE_VIEW_DROP_AFTER;
7040           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
7041         }
7042       else
7043         {
7044           pos = GTK_TREE_VIEW_DROP_BEFORE;
7045           path = gtk_tree_path_new_from_indices (0, -1);
7046         }
7047
7048       can_drop = TRUE;
7049
7050       goto out;
7051     }
7052
7053   g_assert (path);
7054
7055   /* If we left the current row's "open" zone, unset the timeout for
7056    * opening the row
7057    */
7058   gtk_tree_view_get_drag_dest_row (tree_view,
7059                                    &old_dest_path,
7060                                    &old_pos);
7061
7062   if (old_dest_path &&
7063       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
7064        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7065          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
7066     remove_open_timeout (tree_view);
7067
7068   if (old_dest_path)
7069     gtk_tree_path_free (old_dest_path);
7070
7071   if (TRUE /* FIXME if the location droppable predicate */)
7072     {
7073       can_drop = TRUE;
7074     }
7075
7076 out:
7077   if (can_drop)
7078     {
7079       GtkWidget *source_widget;
7080
7081       *suggested_action = context->suggested_action;
7082       source_widget = gtk_drag_get_source_widget (context);
7083
7084       if (source_widget == widget)
7085         {
7086           /* Default to MOVE, unless the user has
7087            * pressed ctrl or shift to affect available actions
7088            */
7089           if ((context->actions & GDK_ACTION_MOVE) != 0)
7090             *suggested_action = GDK_ACTION_MOVE;
7091         }
7092
7093       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7094                                        path, pos);
7095     }
7096   else
7097     {
7098       /* can't drop here */
7099       remove_open_timeout (tree_view);
7100
7101       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7102                                        NULL,
7103                                        GTK_TREE_VIEW_DROP_BEFORE);
7104     }
7105
7106   if (path)
7107     gtk_tree_path_free (path);
7108
7109   return TRUE;
7110 }
7111
7112 static GtkTreePath*
7113 get_logical_dest_row (GtkTreeView *tree_view,
7114                       gboolean    *path_down_mode,
7115                       gboolean    *drop_append_mode)
7116 {
7117   /* adjust path to point to the row the drop goes in front of */
7118   GtkTreePath *path = NULL;
7119   GtkTreeViewDropPosition pos;
7120
7121   g_return_val_if_fail (path_down_mode != NULL, NULL);
7122   g_return_val_if_fail (drop_append_mode != NULL, NULL);
7123
7124   *path_down_mode = FALSE;
7125   *drop_append_mode = 0;
7126
7127   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7128
7129   if (path == NULL)
7130     return NULL;
7131
7132   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
7133     ; /* do nothing */
7134   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
7135            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
7136     *path_down_mode = TRUE;
7137   else
7138     {
7139       GtkTreeIter iter;
7140       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
7141
7142       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
7143
7144       if (!gtk_tree_model_get_iter (model, &iter, path) ||
7145           !gtk_tree_model_iter_next (model, &iter))
7146         *drop_append_mode = 1;
7147       else
7148         {
7149           *drop_append_mode = 0;
7150           gtk_tree_path_next (path);
7151         }
7152     }
7153
7154   return path;
7155 }
7156
7157 static gboolean
7158 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7159                                         GdkEventMotion   *event)
7160 {
7161   GtkWidget *widget = GTK_WIDGET (tree_view);
7162   GdkDragContext *context;
7163   TreeViewDragInfo *di;
7164   GtkTreePath *path = NULL;
7165   gint button;
7166   gint cell_x, cell_y;
7167   GtkTreeModel *model;
7168   gboolean retval = FALSE;
7169
7170   di = get_info (tree_view);
7171
7172   if (di == NULL || !di->source_set)
7173     goto out;
7174
7175   if (tree_view->priv->pressed_button < 0)
7176     goto out;
7177
7178   if (!gtk_drag_check_threshold (widget,
7179                                  tree_view->priv->press_start_x,
7180                                  tree_view->priv->press_start_y,
7181                                  event->x, event->y))
7182     goto out;
7183
7184   model = gtk_tree_view_get_model (tree_view);
7185
7186   if (model == NULL)
7187     goto out;
7188
7189   button = tree_view->priv->pressed_button;
7190   tree_view->priv->pressed_button = -1;
7191
7192   gtk_tree_view_get_path_at_pos (tree_view,
7193                                  tree_view->priv->press_start_x,
7194                                  tree_view->priv->press_start_y,
7195                                  &path,
7196                                  NULL,
7197                                  &cell_x,
7198                                  &cell_y);
7199
7200   if (path == NULL)
7201     goto out;
7202
7203   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7204       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7205                                            path))
7206     goto out;
7207
7208   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7209     goto out;
7210
7211   /* Now we can begin the drag */
7212
7213   retval = TRUE;
7214
7215   context = gtk_drag_begin (widget,
7216                             gtk_drag_source_get_target_list (widget),
7217                             di->source_actions,
7218                             button,
7219                             (GdkEvent*)event);
7220
7221   set_source_row (context, model, path);
7222
7223  out:
7224   if (path)
7225     gtk_tree_path_free (path);
7226
7227   return retval;
7228 }
7229
7230
7231 static void
7232 gtk_tree_view_drag_begin (GtkWidget      *widget,
7233                           GdkDragContext *context)
7234 {
7235   GtkTreeView *tree_view;
7236   GtkTreePath *path = NULL;
7237   gint cell_x, cell_y;
7238   cairo_surface_t *row_pix;
7239   TreeViewDragInfo *di;
7240
7241   tree_view = GTK_TREE_VIEW (widget);
7242
7243   /* if the user uses a custom DND source impl, we don't set the icon here */
7244   di = get_info (tree_view);
7245
7246   if (di == NULL || !di->source_set)
7247     return;
7248
7249   gtk_tree_view_get_path_at_pos (tree_view,
7250                                  tree_view->priv->press_start_x,
7251                                  tree_view->priv->press_start_y,
7252                                  &path,
7253                                  NULL,
7254                                  &cell_x,
7255                                  &cell_y);
7256
7257   g_return_if_fail (path != NULL);
7258
7259   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7260                                                 path);
7261   cairo_surface_set_device_offset (row_pix,
7262                                    /* the + 1 is for the black border in the icon */
7263                                    - (tree_view->priv->press_start_x + 1),
7264                                    - (cell_y + 1));
7265
7266   gtk_drag_set_icon_surface (context, row_pix);
7267
7268   cairo_surface_destroy (row_pix);
7269   gtk_tree_path_free (path);
7270 }
7271
7272 static void
7273 gtk_tree_view_drag_end (GtkWidget      *widget,
7274                         GdkDragContext *context)
7275 {
7276   /* do nothing */
7277 }
7278
7279 /* Default signal implementations for the drag signals */
7280 static void
7281 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7282                              GdkDragContext   *context,
7283                              GtkSelectionData *selection_data,
7284                              guint             info,
7285                              guint             time)
7286 {
7287   GtkTreeView *tree_view;
7288   GtkTreeModel *model;
7289   TreeViewDragInfo *di;
7290   GtkTreePath *source_row;
7291
7292   tree_view = GTK_TREE_VIEW (widget);
7293
7294   model = gtk_tree_view_get_model (tree_view);
7295
7296   if (model == NULL)
7297     return;
7298
7299   di = get_info (GTK_TREE_VIEW (widget));
7300
7301   if (di == NULL)
7302     return;
7303
7304   source_row = get_source_row (context);
7305
7306   if (source_row == NULL)
7307     return;
7308
7309   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7310    * any model; for DragSource models there are some other targets
7311    * we also support.
7312    */
7313
7314   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7315       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7316                                           source_row,
7317                                           selection_data))
7318     goto done;
7319
7320   /* If drag_data_get does nothing, try providing row data. */
7321   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7322     {
7323       gtk_tree_set_row_drag_data (selection_data,
7324                                   model,
7325                                   source_row);
7326     }
7327
7328  done:
7329   gtk_tree_path_free (source_row);
7330 }
7331
7332
7333 static void
7334 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7335                                 GdkDragContext *context)
7336 {
7337   TreeViewDragInfo *di;
7338   GtkTreeModel *model;
7339   GtkTreeView *tree_view;
7340   GtkTreePath *source_row;
7341
7342   tree_view = GTK_TREE_VIEW (widget);
7343   model = gtk_tree_view_get_model (tree_view);
7344
7345   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7346     return;
7347
7348   di = get_info (tree_view);
7349
7350   if (di == NULL)
7351     return;
7352
7353   source_row = get_source_row (context);
7354
7355   if (source_row == NULL)
7356     return;
7357
7358   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7359                                          source_row);
7360
7361   gtk_tree_path_free (source_row);
7362
7363   set_source_row (context, NULL, NULL);
7364 }
7365
7366 static void
7367 gtk_tree_view_drag_leave (GtkWidget      *widget,
7368                           GdkDragContext *context,
7369                           guint             time)
7370 {
7371   /* unset any highlight row */
7372   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7373                                    NULL,
7374                                    GTK_TREE_VIEW_DROP_BEFORE);
7375
7376   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7377   remove_open_timeout (GTK_TREE_VIEW (widget));
7378 }
7379
7380
7381 static gboolean
7382 gtk_tree_view_drag_motion (GtkWidget        *widget,
7383                            GdkDragContext   *context,
7384                            /* coordinates relative to the widget */
7385                            gint              x,
7386                            gint              y,
7387                            guint             time)
7388 {
7389   gboolean empty;
7390   GtkTreePath *path = NULL;
7391   GtkTreeViewDropPosition pos;
7392   GtkTreeView *tree_view;
7393   GdkDragAction suggested_action = 0;
7394   GdkAtom target;
7395
7396   tree_view = GTK_TREE_VIEW (widget);
7397
7398   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7399     return FALSE;
7400
7401   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7402
7403   /* we only know this *after* set_desination_row */
7404   empty = tree_view->priv->empty_view_drop;
7405
7406   if (path == NULL && !empty)
7407     {
7408       /* Can't drop here. */
7409       gdk_drag_status (context, 0, time);
7410     }
7411   else
7412     {
7413       if (tree_view->priv->open_dest_timeout == 0 &&
7414           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7415            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7416         {
7417           tree_view->priv->open_dest_timeout =
7418             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7419         }
7420       else
7421         {
7422           add_scroll_timeout (tree_view);
7423         }
7424
7425       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7426         {
7427           /* Request data so we can use the source row when
7428            * determining whether to accept the drop
7429            */
7430           set_status_pending (context, suggested_action);
7431           gtk_drag_get_data (widget, context, target, time);
7432         }
7433       else
7434         {
7435           set_status_pending (context, 0);
7436           gdk_drag_status (context, suggested_action, time);
7437         }
7438     }
7439
7440   if (path)
7441     gtk_tree_path_free (path);
7442
7443   return TRUE;
7444 }
7445
7446
7447 static gboolean
7448 gtk_tree_view_drag_drop (GtkWidget        *widget,
7449                          GdkDragContext   *context,
7450                          /* coordinates relative to the widget */
7451                          gint              x,
7452                          gint              y,
7453                          guint             time)
7454 {
7455   GtkTreeView *tree_view;
7456   GtkTreePath *path;
7457   GdkDragAction suggested_action = 0;
7458   GdkAtom target = GDK_NONE;
7459   TreeViewDragInfo *di;
7460   GtkTreeModel *model;
7461   gboolean path_down_mode;
7462   gboolean drop_append_mode;
7463
7464   tree_view = GTK_TREE_VIEW (widget);
7465
7466   model = gtk_tree_view_get_model (tree_view);
7467
7468   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7469   remove_open_timeout (GTK_TREE_VIEW (widget));
7470
7471   di = get_info (tree_view);
7472
7473   if (di == NULL)
7474     return FALSE;
7475
7476   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7477     return FALSE;
7478
7479   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7480     return FALSE;
7481
7482   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7483
7484   if (target != GDK_NONE && path != NULL)
7485     {
7486       /* in case a motion had requested drag data, change things so we
7487        * treat drag data receives as a drop.
7488        */
7489       set_status_pending (context, 0);
7490       set_dest_row (context, model, path,
7491                     path_down_mode, tree_view->priv->empty_view_drop,
7492                     drop_append_mode);
7493     }
7494
7495   if (path)
7496     gtk_tree_path_free (path);
7497
7498   /* Unset this thing */
7499   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7500                                    NULL,
7501                                    GTK_TREE_VIEW_DROP_BEFORE);
7502
7503   if (target != GDK_NONE)
7504     {
7505       gtk_drag_get_data (widget, context, target, time);
7506       return TRUE;
7507     }
7508   else
7509     return FALSE;
7510 }
7511
7512 static void
7513 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7514                                   GdkDragContext   *context,
7515                                   /* coordinates relative to the widget */
7516                                   gint              x,
7517                                   gint              y,
7518                                   GtkSelectionData *selection_data,
7519                                   guint             info,
7520                                   guint             time)
7521 {
7522   GtkTreePath *path;
7523   TreeViewDragInfo *di;
7524   gboolean accepted = FALSE;
7525   GtkTreeModel *model;
7526   GtkTreeView *tree_view;
7527   GtkTreePath *dest_row;
7528   GdkDragAction suggested_action;
7529   gboolean path_down_mode;
7530   gboolean drop_append_mode;
7531
7532   tree_view = GTK_TREE_VIEW (widget);
7533
7534   model = gtk_tree_view_get_model (tree_view);
7535
7536   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7537     return;
7538
7539   di = get_info (tree_view);
7540
7541   if (di == NULL)
7542     return;
7543
7544   suggested_action = get_status_pending (context);
7545
7546   if (suggested_action)
7547     {
7548       /* We are getting this data due to a request in drag_motion,
7549        * rather than due to a request in drag_drop, so we are just
7550        * supposed to call drag_status, not actually paste in the
7551        * data.
7552        */
7553       path = get_logical_dest_row (tree_view, &path_down_mode,
7554                                    &drop_append_mode);
7555
7556       if (path == NULL)
7557         suggested_action = 0;
7558       else if (path_down_mode)
7559         gtk_tree_path_down (path);
7560
7561       if (suggested_action)
7562         {
7563           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7564                                                      path,
7565                                                      selection_data))
7566             {
7567               if (path_down_mode)
7568                 {
7569                   path_down_mode = FALSE;
7570                   gtk_tree_path_up (path);
7571
7572                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7573                                                              path,
7574                                                              selection_data))
7575                     suggested_action = 0;
7576                 }
7577               else
7578                 suggested_action = 0;
7579             }
7580         }
7581
7582       gdk_drag_status (context, suggested_action, time);
7583
7584       if (path)
7585         gtk_tree_path_free (path);
7586
7587       /* If you can't drop, remove user drop indicator until the next motion */
7588       if (suggested_action == 0)
7589         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7590                                          NULL,
7591                                          GTK_TREE_VIEW_DROP_BEFORE);
7592
7593       return;
7594     }
7595
7596   dest_row = get_dest_row (context, &path_down_mode);
7597
7598   if (dest_row == NULL)
7599     return;
7600
7601   if (selection_data->length >= 0)
7602     {
7603       if (path_down_mode)
7604         {
7605           gtk_tree_path_down (dest_row);
7606           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7607                                                      dest_row, selection_data))
7608             gtk_tree_path_up (dest_row);
7609         }
7610     }
7611
7612   if (selection_data->length >= 0)
7613     {
7614       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7615                                                  dest_row,
7616                                                  selection_data))
7617         accepted = TRUE;
7618     }
7619
7620   gtk_drag_finish (context,
7621                    accepted,
7622                    (context->action == GDK_ACTION_MOVE),
7623                    time);
7624
7625   if (gtk_tree_path_get_depth (dest_row) == 1
7626       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7627     {
7628       /* special special case drag to "0", scroll to first item */
7629       if (!tree_view->priv->scroll_to_path)
7630         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7631     }
7632
7633   gtk_tree_path_free (dest_row);
7634
7635   /* drop dest_row */
7636   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7637 }
7638
7639
7640
7641 /* GtkContainer Methods
7642  */
7643
7644
7645 static void
7646 gtk_tree_view_remove (GtkContainer *container,
7647                       GtkWidget    *widget)
7648 {
7649   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7650   GtkTreeViewChild *child = NULL;
7651   GList *tmp_list;
7652
7653   tmp_list = tree_view->priv->children;
7654   while (tmp_list)
7655     {
7656       child = tmp_list->data;
7657       if (child->widget == widget)
7658         {
7659           gtk_widget_unparent (widget);
7660
7661           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7662           g_list_free_1 (tmp_list);
7663           g_slice_free (GtkTreeViewChild, child);
7664           return;
7665         }
7666
7667       tmp_list = tmp_list->next;
7668     }
7669
7670   tmp_list = tree_view->priv->columns;
7671
7672   while (tmp_list)
7673     {
7674       GtkTreeViewColumn *column;
7675       column = tmp_list->data;
7676       if (column->button == widget)
7677         {
7678           gtk_widget_unparent (widget);
7679           return;
7680         }
7681       tmp_list = tmp_list->next;
7682     }
7683 }
7684
7685 static void
7686 gtk_tree_view_forall (GtkContainer *container,
7687                       gboolean      include_internals,
7688                       GtkCallback   callback,
7689                       gpointer      callback_data)
7690 {
7691   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7692   GtkTreeViewChild *child = NULL;
7693   GtkTreeViewColumn *column;
7694   GList *tmp_list;
7695
7696   tmp_list = tree_view->priv->children;
7697   while (tmp_list)
7698     {
7699       child = tmp_list->data;
7700       tmp_list = tmp_list->next;
7701
7702       (* callback) (child->widget, callback_data);
7703     }
7704   if (include_internals == FALSE)
7705     return;
7706
7707   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7708     {
7709       column = tmp_list->data;
7710
7711       if (column->button)
7712         (* callback) (column->button, callback_data);
7713     }
7714 }
7715
7716 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7717  * cells. If so we draw one big row-spanning focus rectangle.
7718  */
7719 static gboolean
7720 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7721 {
7722   GList *list;
7723
7724   for (list = tree_view->priv->columns; list; list = list->next)
7725     {
7726       if (!((GtkTreeViewColumn *)list->data)->visible)
7727         continue;
7728       if (_gtk_tree_view_column_count_special_cells (list->data))
7729         return TRUE;
7730     }
7731
7732   return FALSE;
7733 }
7734
7735 static void
7736 column_sizing_notify (GObject    *object,
7737                       GParamSpec *pspec,
7738                       gpointer    data)
7739 {
7740   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7741
7742   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7743     /* disable fixed height mode */
7744     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7745 }
7746
7747 /**
7748  * gtk_tree_view_set_fixed_height_mode:
7749  * @tree_view: a #GtkTreeView
7750  * @enable: %TRUE to enable fixed height mode
7751  *
7752  * Enables or disables the fixed height mode of @tree_view.
7753  * Fixed height mode speeds up #GtkTreeView by assuming that all
7754  * rows have the same height.
7755  * Only enable this option if all rows are the same height and all
7756  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7757  *
7758  * Since: 2.6
7759  **/
7760 void
7761 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7762                                      gboolean     enable)
7763 {
7764   GList *l;
7765
7766   enable = enable != FALSE;
7767
7768   if (enable == tree_view->priv->fixed_height_mode)
7769     return;
7770
7771   if (!enable)
7772     {
7773       tree_view->priv->fixed_height_mode = 0;
7774       tree_view->priv->fixed_height = -1;
7775
7776       /* force a revalidation */
7777       install_presize_handler (tree_view);
7778     }
7779   else
7780     {
7781       /* make sure all columns are of type FIXED */
7782       for (l = tree_view->priv->columns; l; l = l->next)
7783         {
7784           GtkTreeViewColumn *c = l->data;
7785
7786           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7787         }
7788
7789       /* yes, we really have to do this is in a separate loop */
7790       for (l = tree_view->priv->columns; l; l = l->next)
7791         g_signal_connect (l->data, "notify::sizing",
7792                           G_CALLBACK (column_sizing_notify), tree_view);
7793
7794       tree_view->priv->fixed_height_mode = 1;
7795       tree_view->priv->fixed_height = -1;
7796
7797       if (tree_view->priv->tree)
7798         initialize_fixed_height_mode (tree_view);
7799     }
7800
7801   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7802 }
7803
7804 /**
7805  * gtk_tree_view_get_fixed_height_mode:
7806  * @tree_view: a #GtkTreeView
7807  *
7808  * Returns whether fixed height mode is turned on for @tree_view.
7809  *
7810  * Return value: %TRUE if @tree_view is in fixed height mode
7811  *
7812  * Since: 2.6
7813  **/
7814 gboolean
7815 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7816 {
7817   return tree_view->priv->fixed_height_mode;
7818 }
7819
7820 /* Returns TRUE if the focus is within the headers, after the focus operation is
7821  * done
7822  */
7823 static gboolean
7824 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7825                             GtkDirectionType  dir,
7826                             gboolean          clamp_column_visible)
7827 {
7828   GtkWidget *focus_child;
7829
7830   GList *last_column, *first_column;
7831   GList *tmp_list;
7832   gboolean rtl;
7833
7834   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7835     return FALSE;
7836
7837   focus_child = gtk_container_get_focus_child (GTK_CONTAINER (tree_view));
7838
7839   first_column = tree_view->priv->columns;
7840   while (first_column)
7841     {
7842       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7843           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7844           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7845            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7846         break;
7847       first_column = first_column->next;
7848     }
7849
7850   /* No headers are visible, or are focusable.  We can't focus in or out.
7851    */
7852   if (first_column == NULL)
7853     return FALSE;
7854
7855   last_column = g_list_last (tree_view->priv->columns);
7856   while (last_column)
7857     {
7858       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7859           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7860           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7861            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7862         break;
7863       last_column = last_column->prev;
7864     }
7865
7866
7867   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7868
7869   switch (dir)
7870     {
7871     case GTK_DIR_TAB_BACKWARD:
7872     case GTK_DIR_TAB_FORWARD:
7873     case GTK_DIR_UP:
7874     case GTK_DIR_DOWN:
7875       if (focus_child == NULL)
7876         {
7877           if (tree_view->priv->focus_column != NULL &&
7878               gtk_widget_get_can_focus (tree_view->priv->focus_column->button))
7879             focus_child = tree_view->priv->focus_column->button;
7880           else
7881             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7882           gtk_widget_grab_focus (focus_child);
7883           break;
7884         }
7885       return FALSE;
7886
7887     case GTK_DIR_LEFT:
7888     case GTK_DIR_RIGHT:
7889       if (focus_child == NULL)
7890         {
7891           if (tree_view->priv->focus_column != NULL)
7892             focus_child = tree_view->priv->focus_column->button;
7893           else if (dir == GTK_DIR_LEFT)
7894             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7895           else
7896             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7897           gtk_widget_grab_focus (focus_child);
7898           break;
7899         }
7900
7901       if (gtk_widget_child_focus (focus_child, dir))
7902         {
7903           /* The focus moves inside the button. */
7904           /* This is probably a great example of bad UI */
7905           break;
7906         }
7907
7908       /* We need to move the focus among the row of buttons. */
7909       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7910         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7911           break;
7912
7913       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7914           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7915         {
7916           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7917           break;
7918         }
7919
7920       while (tmp_list)
7921         {
7922           GtkTreeViewColumn *column;
7923
7924           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7925             tmp_list = tmp_list->next;
7926           else
7927             tmp_list = tmp_list->prev;
7928
7929           if (tmp_list == NULL)
7930             {
7931               g_warning ("Internal button not found");
7932               break;
7933             }
7934           column = tmp_list->data;
7935           if (column->button &&
7936               column->visible &&
7937               gtk_widget_get_can_focus (column->button))
7938             {
7939               focus_child = column->button;
7940               gtk_widget_grab_focus (column->button);
7941               break;
7942             }
7943         }
7944       break;
7945     default:
7946       g_assert_not_reached ();
7947       break;
7948     }
7949
7950   /* if focus child is non-null, we assume it's been set to the current focus child
7951    */
7952   if (focus_child)
7953     {
7954       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7955         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7956           {
7957             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7958             break;
7959           }
7960
7961       if (clamp_column_visible)
7962         {
7963           gtk_tree_view_clamp_column_visible (tree_view,
7964                                               tree_view->priv->focus_column,
7965                                               FALSE);
7966         }
7967     }
7968
7969   return (focus_child != NULL);
7970 }
7971
7972 /* This function returns in 'path' the first focusable path, if the given path
7973  * is already focusable, it's the returned one.
7974  */
7975 static gboolean
7976 search_first_focusable_path (GtkTreeView  *tree_view,
7977                              GtkTreePath **path,
7978                              gboolean      search_forward,
7979                              GtkRBTree   **new_tree,
7980                              GtkRBNode   **new_node)
7981 {
7982   GtkRBTree *tree = NULL;
7983   GtkRBNode *node = NULL;
7984
7985   if (!path || !*path)
7986     return FALSE;
7987
7988   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7989
7990   if (!tree || !node)
7991     return FALSE;
7992
7993   while (node && row_is_separator (tree_view, NULL, *path))
7994     {
7995       if (search_forward)
7996         _gtk_rbtree_next_full (tree, node, &tree, &node);
7997       else
7998         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7999
8000       if (*path)
8001         gtk_tree_path_free (*path);
8002
8003       if (node)
8004         *path = _gtk_tree_view_find_path (tree_view, tree, node);
8005       else
8006         *path = NULL;
8007     }
8008
8009   if (new_tree)
8010     *new_tree = tree;
8011
8012   if (new_node)
8013     *new_node = node;
8014
8015   return (*path != NULL);
8016 }
8017
8018 static gint
8019 gtk_tree_view_focus (GtkWidget        *widget,
8020                      GtkDirectionType  direction)
8021 {
8022   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
8023   GtkContainer *container = GTK_CONTAINER (widget);
8024   GtkWidget *focus_child;
8025
8026   if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_can_focus (widget))
8027     return FALSE;
8028
8029   focus_child = gtk_container_get_focus_child (container);
8030
8031   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
8032   /* Case 1.  Headers currently have focus. */
8033   if (focus_child)
8034     {
8035       switch (direction)
8036         {
8037         case GTK_DIR_LEFT:
8038         case GTK_DIR_RIGHT:
8039           gtk_tree_view_header_focus (tree_view, direction, TRUE);
8040           return TRUE;
8041         case GTK_DIR_TAB_BACKWARD:
8042         case GTK_DIR_UP:
8043           return FALSE;
8044         case GTK_DIR_TAB_FORWARD:
8045         case GTK_DIR_DOWN:
8046           gtk_widget_grab_focus (widget);
8047           return TRUE;
8048         default:
8049           g_assert_not_reached ();
8050           return FALSE;
8051         }
8052     }
8053
8054   /* Case 2. We don't have focus at all. */
8055   if (!gtk_widget_has_focus (widget))
8056     {
8057       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
8058         gtk_widget_grab_focus (widget);
8059       return TRUE;
8060     }
8061
8062   /* Case 3. We have focus already. */
8063   if (direction == GTK_DIR_TAB_BACKWARD)
8064     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
8065   else if (direction == GTK_DIR_TAB_FORWARD)
8066     return FALSE;
8067
8068   /* Other directions caught by the keybindings */
8069   gtk_widget_grab_focus (widget);
8070   return TRUE;
8071 }
8072
8073 static void
8074 gtk_tree_view_grab_focus (GtkWidget *widget)
8075 {
8076   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
8077
8078   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
8079 }
8080
8081 static void
8082 gtk_tree_view_style_set (GtkWidget *widget,
8083                          GtkStyle *previous_style)
8084 {
8085   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
8086   GtkStyle *style;
8087   GList *list;
8088   GtkTreeViewColumn *column;
8089
8090   if (gtk_widget_get_realized (widget))
8091     {
8092       style = gtk_widget_get_style (widget);
8093       gdk_window_set_background (tree_view->priv->bin_window,
8094                                  &style->base[gtk_widget_get_state (widget)]);
8095       gtk_style_set_background (style, tree_view->priv->header_window, GTK_STATE_NORMAL);
8096
8097       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
8098       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
8099     }
8100
8101   gtk_widget_style_get (widget,
8102                         "expander-size", &tree_view->priv->expander_size,
8103                         NULL);
8104   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
8105
8106   for (list = tree_view->priv->columns; list; list = list->next)
8107     {
8108       column = list->data;
8109       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8110     }
8111
8112   tree_view->priv->fixed_height = -1;
8113   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
8114
8115   gtk_widget_queue_resize (widget);
8116 }
8117
8118
8119 static void
8120 gtk_tree_view_set_focus_child (GtkContainer *container,
8121                                GtkWidget    *child)
8122 {
8123   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
8124   GList *list;
8125
8126   for (list = tree_view->priv->columns; list; list = list->next)
8127     {
8128       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
8129         {
8130           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
8131           break;
8132         }
8133     }
8134
8135   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
8136 }
8137
8138 static void
8139 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
8140                                GtkAdjustment *hadj,
8141                                GtkAdjustment *vadj)
8142 {
8143   gboolean need_adjust = FALSE;
8144
8145   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8146
8147   if (hadj)
8148     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8149   else
8150     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8151   if (vadj)
8152     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8153   else
8154     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8155
8156   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8157     {
8158       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8159                                             gtk_tree_view_adjustment_changed,
8160                                             tree_view);
8161       g_object_unref (tree_view->priv->hadjustment);
8162     }
8163
8164   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8165     {
8166       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8167                                             gtk_tree_view_adjustment_changed,
8168                                             tree_view);
8169       g_object_unref (tree_view->priv->vadjustment);
8170     }
8171
8172   if (tree_view->priv->hadjustment != hadj)
8173     {
8174       tree_view->priv->hadjustment = hadj;
8175       g_object_ref_sink (tree_view->priv->hadjustment);
8176
8177       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8178                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8179                         tree_view);
8180       need_adjust = TRUE;
8181     }
8182
8183   if (tree_view->priv->vadjustment != vadj)
8184     {
8185       tree_view->priv->vadjustment = vadj;
8186       g_object_ref_sink (tree_view->priv->vadjustment);
8187
8188       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8189                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8190                         tree_view);
8191       need_adjust = TRUE;
8192     }
8193
8194   if (need_adjust)
8195     gtk_tree_view_adjustment_changed (NULL, tree_view);
8196 }
8197
8198
8199 static gboolean
8200 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8201                                 GtkMovementStep    step,
8202                                 gint               count)
8203 {
8204   GdkModifierType state;
8205
8206   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8207   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8208                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8209                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8210                         step == GTK_MOVEMENT_PAGES ||
8211                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8212
8213   if (tree_view->priv->tree == NULL)
8214     return FALSE;
8215   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
8216     return FALSE;
8217
8218   gtk_tree_view_stop_editing (tree_view, FALSE);
8219   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8220   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8221
8222   if (gtk_get_current_event_state (&state))
8223     {
8224       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8225         tree_view->priv->ctrl_pressed = TRUE;
8226       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8227         tree_view->priv->shift_pressed = TRUE;
8228     }
8229   /* else we assume not pressed */
8230
8231   switch (step)
8232     {
8233       /* currently we make no distinction.  When we go bi-di, we need to */
8234     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8235     case GTK_MOVEMENT_VISUAL_POSITIONS:
8236       gtk_tree_view_move_cursor_left_right (tree_view, count);
8237       break;
8238     case GTK_MOVEMENT_DISPLAY_LINES:
8239       gtk_tree_view_move_cursor_up_down (tree_view, count);
8240       break;
8241     case GTK_MOVEMENT_PAGES:
8242       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8243       break;
8244     case GTK_MOVEMENT_BUFFER_ENDS:
8245       gtk_tree_view_move_cursor_start_end (tree_view, count);
8246       break;
8247     default:
8248       g_assert_not_reached ();
8249     }
8250
8251   tree_view->priv->ctrl_pressed = FALSE;
8252   tree_view->priv->shift_pressed = FALSE;
8253
8254   return TRUE;
8255 }
8256
8257 static void
8258 gtk_tree_view_put (GtkTreeView *tree_view,
8259                    GtkWidget   *child_widget,
8260                    /* in bin_window coordinates */
8261                    gint         x,
8262                    gint         y,
8263                    gint         width,
8264                    gint         height)
8265 {
8266   GtkTreeViewChild *child;
8267
8268   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8269   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8270
8271   child = g_slice_new (GtkTreeViewChild);
8272
8273   child->widget = child_widget;
8274   child->x = x;
8275   child->y = y;
8276   child->width = width;
8277   child->height = height;
8278
8279   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8280
8281   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
8282     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8283
8284   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8285 }
8286
8287 void
8288 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8289                                   GtkWidget   *widget,
8290                                   /* in tree coordinates */
8291                                   gint         x,
8292                                   gint         y,
8293                                   gint         width,
8294                                   gint         height)
8295 {
8296   GtkTreeViewChild *child = NULL;
8297   GList *list;
8298   GdkRectangle allocation;
8299
8300   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8301   g_return_if_fail (GTK_IS_WIDGET (widget));
8302
8303   for (list = tree_view->priv->children; list; list = list->next)
8304     {
8305       if (((GtkTreeViewChild *)list->data)->widget == widget)
8306         {
8307           child = list->data;
8308           break;
8309         }
8310     }
8311   if (child == NULL)
8312     return;
8313
8314   allocation.x = child->x = x;
8315   allocation.y = child->y = y;
8316   allocation.width = child->width = width;
8317   allocation.height = child->height = height;
8318
8319   if (gtk_widget_get_realized (widget))
8320     gtk_widget_size_allocate (widget, &allocation);
8321 }
8322
8323
8324 /* TreeModel Callbacks
8325  */
8326
8327 static void
8328 gtk_tree_view_row_changed (GtkTreeModel *model,
8329                            GtkTreePath  *path,
8330                            GtkTreeIter  *iter,
8331                            gpointer      data)
8332 {
8333   GtkTreeView *tree_view = (GtkTreeView *)data;
8334   GtkRBTree *tree;
8335   GtkRBNode *node;
8336   gboolean free_path = FALSE;
8337   GList *list;
8338   GtkTreePath *cursor_path;
8339
8340   g_return_if_fail (path != NULL || iter != NULL);
8341
8342   if (tree_view->priv->cursor != NULL)
8343     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8344   else
8345     cursor_path = NULL;
8346
8347   if (tree_view->priv->edited_column &&
8348       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8349     gtk_tree_view_stop_editing (tree_view, TRUE);
8350
8351   if (cursor_path != NULL)
8352     gtk_tree_path_free (cursor_path);
8353
8354   if (path == NULL)
8355     {
8356       path = gtk_tree_model_get_path (model, iter);
8357       free_path = TRUE;
8358     }
8359   else if (iter == NULL)
8360     gtk_tree_model_get_iter (model, iter, path);
8361
8362   if (_gtk_tree_view_find_node (tree_view,
8363                                 path,
8364                                 &tree,
8365                                 &node))
8366     /* We aren't actually showing the node */
8367     goto done;
8368
8369   if (tree == NULL)
8370     goto done;
8371
8372   if (tree_view->priv->fixed_height_mode
8373       && tree_view->priv->fixed_height >= 0)
8374     {
8375       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8376       if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
8377         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8378     }
8379   else
8380     {
8381       _gtk_rbtree_node_mark_invalid (tree, node);
8382       for (list = tree_view->priv->columns; list; list = list->next)
8383         {
8384           GtkTreeViewColumn *column;
8385
8386           column = list->data;
8387           if (! column->visible)
8388             continue;
8389
8390           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8391             {
8392               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8393             }
8394         }
8395     }
8396
8397  done:
8398   if (!tree_view->priv->fixed_height_mode &&
8399       gtk_widget_get_realized (GTK_WIDGET (tree_view)))
8400     install_presize_handler (tree_view);
8401   if (free_path)
8402     gtk_tree_path_free (path);
8403 }
8404
8405 static void
8406 gtk_tree_view_row_inserted (GtkTreeModel *model,
8407                             GtkTreePath  *path,
8408                             GtkTreeIter  *iter,
8409                             gpointer      data)
8410 {
8411   GtkTreeView *tree_view = (GtkTreeView *) data;
8412   gint *indices;
8413   GtkRBTree *tmptree, *tree;
8414   GtkRBNode *tmpnode = NULL;
8415   gint depth;
8416   gint i = 0;
8417   gint height;
8418   gboolean free_path = FALSE;
8419   gboolean node_visible = TRUE;
8420
8421   g_return_if_fail (path != NULL || iter != NULL);
8422
8423   if (tree_view->priv->fixed_height_mode
8424       && tree_view->priv->fixed_height >= 0)
8425     height = tree_view->priv->fixed_height;
8426   else
8427     height = 0;
8428
8429   if (path == NULL)
8430     {
8431       path = gtk_tree_model_get_path (model, iter);
8432       free_path = TRUE;
8433     }
8434   else if (iter == NULL)
8435     gtk_tree_model_get_iter (model, iter, path);
8436
8437   if (tree_view->priv->tree == NULL)
8438     tree_view->priv->tree = _gtk_rbtree_new ();
8439
8440   tmptree = tree = tree_view->priv->tree;
8441
8442   /* Update all row-references */
8443   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8444   depth = gtk_tree_path_get_depth (path);
8445   indices = gtk_tree_path_get_indices (path);
8446
8447   /* First, find the parent tree */
8448   while (i < depth - 1)
8449     {
8450       if (tmptree == NULL)
8451         {
8452           /* We aren't showing the node */
8453           node_visible = FALSE;
8454           goto done;
8455         }
8456
8457       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8458       if (tmpnode == NULL)
8459         {
8460           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8461                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8462                      "before the parent was inserted.");
8463           goto done;
8464         }
8465       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8466         {
8467           /* FIXME enforce correct behavior on model, probably */
8468           /* In theory, the model should have emitted has_child_toggled here.  We
8469            * try to catch it anyway, just to be safe, in case the model hasn't.
8470            */
8471           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8472                                                            tree,
8473                                                            tmpnode);
8474           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8475           gtk_tree_path_free (tmppath);
8476           goto done;
8477         }
8478
8479       tmptree = tmpnode->children;
8480       tree = tmptree;
8481       i++;
8482     }
8483
8484   if (tree == NULL)
8485     {
8486       node_visible = FALSE;
8487       goto done;
8488     }
8489
8490   /* ref the node */
8491   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8492   if (indices[depth - 1] == 0)
8493     {
8494       tmpnode = _gtk_rbtree_find_count (tree, 1);
8495       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8496     }
8497   else
8498     {
8499       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8500       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8501     }
8502
8503  done:
8504   if (height > 0)
8505     {
8506       if (tree)
8507         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8508
8509       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8510         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8511       else
8512         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8513     }
8514   else
8515     install_presize_handler (tree_view);
8516   if (free_path)
8517     gtk_tree_path_free (path);
8518 }
8519
8520 static void
8521 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8522                                      GtkTreePath  *path,
8523                                      GtkTreeIter  *iter,
8524                                      gpointer      data)
8525 {
8526   GtkTreeView *tree_view = (GtkTreeView *)data;
8527   GtkTreeIter real_iter;
8528   gboolean has_child;
8529   GtkRBTree *tree;
8530   GtkRBNode *node;
8531   gboolean free_path = FALSE;
8532
8533   g_return_if_fail (path != NULL || iter != NULL);
8534
8535   if (iter)
8536     real_iter = *iter;
8537
8538   if (path == NULL)
8539     {
8540       path = gtk_tree_model_get_path (model, iter);
8541       free_path = TRUE;
8542     }
8543   else if (iter == NULL)
8544     gtk_tree_model_get_iter (model, &real_iter, path);
8545
8546   if (_gtk_tree_view_find_node (tree_view,
8547                                 path,
8548                                 &tree,
8549                                 &node))
8550     /* We aren't actually showing the node */
8551     goto done;
8552
8553   if (tree == NULL)
8554     goto done;
8555
8556   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8557   /* Sanity check.
8558    */
8559   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8560     goto done;
8561
8562   if (has_child)
8563     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8564   else
8565     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8566
8567   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8568     {
8569       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8570       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8571         {
8572           GList *list;
8573
8574           for (list = tree_view->priv->columns; list; list = list->next)
8575             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8576               {
8577                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8578                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8579                 break;
8580               }
8581         }
8582       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8583     }
8584   else
8585     {
8586       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8587     }
8588
8589  done:
8590   if (free_path)
8591     gtk_tree_path_free (path);
8592 }
8593
8594 static void
8595 count_children_helper (GtkRBTree *tree,
8596                        GtkRBNode *node,
8597                        gpointer   data)
8598 {
8599   if (node->children)
8600     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8601   (*((gint *)data))++;
8602 }
8603
8604 static void
8605 check_selection_helper (GtkRBTree *tree,
8606                         GtkRBNode *node,
8607                         gpointer   data)
8608 {
8609   gint *value = (gint *)data;
8610
8611   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8612
8613   if (node->children && !*value)
8614     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8615 }
8616
8617 static void
8618 gtk_tree_view_row_deleted (GtkTreeModel *model,
8619                            GtkTreePath  *path,
8620                            gpointer      data)
8621 {
8622   GtkTreeView *tree_view = (GtkTreeView *)data;
8623   GtkRBTree *tree;
8624   GtkRBNode *node;
8625   GList *list;
8626   gint selection_changed = FALSE;
8627
8628   g_return_if_fail (path != NULL);
8629
8630   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8631
8632   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8633     return;
8634
8635   if (tree == NULL)
8636     return;
8637
8638   /* check if the selection has been changed */
8639   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8640                         check_selection_helper, &selection_changed);
8641
8642   for (list = tree_view->priv->columns; list; list = list->next)
8643     if (((GtkTreeViewColumn *)list->data)->visible &&
8644         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8645       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8646
8647   /* Ensure we don't have a dangling pointer to a dead node */
8648   ensure_unprelighted (tree_view);
8649
8650   /* Cancel editting if we've started */
8651   gtk_tree_view_stop_editing (tree_view, TRUE);
8652
8653   /* If we have a node expanded/collapsed timeout, remove it */
8654   remove_expand_collapse_timeout (tree_view);
8655
8656   if (tree_view->priv->destroy_count_func)
8657     {
8658       gint child_count = 0;
8659       if (node->children)
8660         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8661       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8662     }
8663
8664   if (tree->root->count == 1)
8665     {
8666       if (tree_view->priv->tree == tree)
8667         tree_view->priv->tree = NULL;
8668
8669       _gtk_rbtree_remove (tree);
8670     }
8671   else
8672     {
8673       _gtk_rbtree_remove_node (tree, node);
8674     }
8675
8676   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8677     {
8678       gtk_tree_row_reference_free (tree_view->priv->top_row);
8679       tree_view->priv->top_row = NULL;
8680     }
8681
8682   install_scroll_sync_handler (tree_view);
8683
8684   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8685
8686   if (selection_changed)
8687     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8688 }
8689
8690 static void
8691 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8692                               GtkTreePath  *parent,
8693                               GtkTreeIter  *iter,
8694                               gint         *new_order,
8695                               gpointer      data)
8696 {
8697   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8698   GtkRBTree *tree;
8699   GtkRBNode *node;
8700   gint len;
8701
8702   len = gtk_tree_model_iter_n_children (model, iter);
8703
8704   if (len < 2)
8705     return;
8706
8707   gtk_tree_row_reference_reordered (G_OBJECT (data),
8708                                     parent,
8709                                     iter,
8710                                     new_order);
8711
8712   if (_gtk_tree_view_find_node (tree_view,
8713                                 parent,
8714                                 &tree,
8715                                 &node))
8716     return;
8717
8718   /* We need to special case the parent path */
8719   if (tree == NULL)
8720     tree = tree_view->priv->tree;
8721   else
8722     tree = node->children;
8723
8724   if (tree == NULL)
8725     return;
8726
8727   if (tree_view->priv->edited_column)
8728     gtk_tree_view_stop_editing (tree_view, TRUE);
8729
8730   /* we need to be unprelighted */
8731   ensure_unprelighted (tree_view);
8732
8733   /* clear the timeout */
8734   cancel_arrow_animation (tree_view);
8735
8736   _gtk_rbtree_reorder (tree, new_order, len);
8737
8738   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8739
8740   gtk_tree_view_dy_to_top_row (tree_view);
8741 }
8742
8743
8744 /* Internal tree functions
8745  */
8746
8747
8748 static void
8749 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8750                                      GtkRBTree         *tree,
8751                                      GtkTreeViewColumn *column,
8752                                      gint              *x1,
8753                                      gint              *x2)
8754 {
8755   GtkTreeViewColumn *tmp_column = NULL;
8756   gint total_width;
8757   GList *list;
8758   gboolean rtl;
8759
8760   if (x1)
8761     *x1 = 0;
8762
8763   if (x2)
8764     *x2 = 0;
8765
8766   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8767
8768   total_width = 0;
8769   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8770        list;
8771        list = (rtl ? list->prev : list->next))
8772     {
8773       tmp_column = list->data;
8774
8775       if (tmp_column == column)
8776         break;
8777
8778       if (tmp_column->visible)
8779         total_width += tmp_column->width;
8780     }
8781
8782   if (tmp_column != column)
8783     {
8784       g_warning (G_STRLOC": passed-in column isn't in the tree");
8785       return;
8786     }
8787
8788   if (x1)
8789     *x1 = total_width;
8790
8791   if (x2)
8792     {
8793       if (column->visible)
8794         *x2 = total_width + column->width;
8795       else
8796         *x2 = total_width; /* width of 0 */
8797     }
8798 }
8799 static void
8800 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8801                                 GtkRBTree   *tree,
8802                                 gint        *x1,
8803                                 gint        *x2)
8804 {
8805   gint x_offset = 0;
8806   GList *list;
8807   GtkTreeViewColumn *tmp_column = NULL;
8808   gint total_width;
8809   gboolean indent_expanders;
8810   gboolean rtl;
8811
8812   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8813
8814   total_width = 0;
8815   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8816        list;
8817        list = (rtl ? list->prev : list->next))
8818     {
8819       tmp_column = list->data;
8820
8821       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8822         {
8823           if (rtl)
8824             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8825           else
8826             x_offset = total_width;
8827           break;
8828         }
8829
8830       if (tmp_column->visible)
8831         total_width += tmp_column->width;
8832     }
8833
8834   gtk_widget_style_get (GTK_WIDGET (tree_view),
8835                         "indent-expanders", &indent_expanders,
8836                         NULL);
8837
8838   if (indent_expanders)
8839     {
8840       if (rtl)
8841         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8842       else
8843         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8844     }
8845
8846   *x1 = x_offset;
8847
8848   if (tmp_column && tmp_column->visible)
8849     /* +1 because x2 isn't included in the range. */
8850     *x2 = *x1 + tree_view->priv->expander_size + 1;
8851   else
8852     *x2 = *x1;
8853 }
8854
8855 static void
8856 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8857                           GtkRBTree   *tree,
8858                           GtkTreeIter *iter,
8859                           gint         depth,
8860                           gboolean     recurse)
8861 {
8862   GtkRBNode *temp = NULL;
8863   GtkTreePath *path = NULL;
8864   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8865
8866   do
8867     {
8868       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8869       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8870
8871       if (tree_view->priv->fixed_height > 0)
8872         {
8873           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8874             {
8875               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8876               _gtk_rbtree_node_mark_valid (tree, temp);
8877             }
8878         }
8879
8880       if (is_list)
8881         continue;
8882
8883       if (recurse)
8884         {
8885           GtkTreeIter child;
8886
8887           if (!path)
8888             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8889           else
8890             gtk_tree_path_next (path);
8891
8892           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8893             {
8894               gboolean expand;
8895
8896               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8897
8898               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8899                   && !expand)
8900                 {
8901                   temp->children = _gtk_rbtree_new ();
8902                   temp->children->parent_tree = tree;
8903                   temp->children->parent_node = temp;
8904                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8905                 }
8906             }
8907         }
8908
8909       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8910         {
8911           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8912             temp->flags ^= GTK_RBNODE_IS_PARENT;
8913         }
8914     }
8915   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8916
8917   if (path)
8918     gtk_tree_path_free (path);
8919 }
8920
8921 /* Make sure the node is visible vertically */
8922 static void
8923 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8924                                   GtkRBTree   *tree,
8925                                   GtkRBNode   *node)
8926 {
8927   gint node_dy, height;
8928   GtkTreePath *path = NULL;
8929
8930   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
8931     return;
8932
8933   /* just return if the node is visible, avoiding a costly expose */
8934   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8935   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8936   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8937       && node_dy >= tree_view->priv->vadjustment->value
8938       && node_dy + height <= (tree_view->priv->vadjustment->value
8939                               + tree_view->priv->vadjustment->page_size))
8940     return;
8941
8942   path = _gtk_tree_view_find_path (tree_view, tree, node);
8943   if (path)
8944     {
8945       /* We process updates because we want to clear old selected items when we scroll.
8946        * if this is removed, we get a "selection streak" at the bottom. */
8947       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8948       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8949       gtk_tree_path_free (path);
8950     }
8951 }
8952
8953 static void
8954 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8955                                     GtkTreeViewColumn *column,
8956                                     gboolean           focus_to_cell)
8957 {
8958   GtkAllocation allocation;
8959   gint x, width;
8960
8961   if (column == NULL)
8962     return;
8963
8964   gtk_widget_get_allocation (column->button, &allocation);
8965   x = allocation.x;
8966   width = allocation.width;
8967
8968   if (width > tree_view->priv->hadjustment->page_size)
8969     {
8970       /* The column is larger than the horizontal page size.  If the
8971        * column has cells which can be focussed individually, then we make
8972        * sure the cell which gets focus is fully visible (if even the
8973        * focus cell is bigger than the page size, we make sure the
8974        * left-hand side of the cell is visible).
8975        *
8976        * If the column does not have those so-called special cells, we
8977        * make sure the left-hand side of the column is visible.
8978        */
8979
8980       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8981         {
8982           GtkTreePath *cursor_path;
8983           GdkRectangle background_area, cell_area, focus_area;
8984
8985           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8986
8987           gtk_tree_view_get_cell_area (tree_view,
8988                                        cursor_path, column, &cell_area);
8989           gtk_tree_view_get_background_area (tree_view,
8990                                              cursor_path, column,
8991                                              &background_area);
8992
8993           gtk_tree_path_free (cursor_path);
8994
8995           _gtk_tree_view_column_get_focus_area (column,
8996                                                 &background_area,
8997                                                 &cell_area,
8998                                                 &focus_area);
8999
9000           x = focus_area.x;
9001           width = focus_area.width;
9002
9003           if (width < tree_view->priv->hadjustment->page_size)
9004             {
9005               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
9006                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
9007                                           x + width - tree_view->priv->hadjustment->page_size);
9008               else if (tree_view->priv->hadjustment->value > x)
9009                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
9010             }
9011         }
9012
9013       gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
9014     }
9015   else
9016     {
9017       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
9018           gtk_adjustment_set_value (tree_view->priv->hadjustment,
9019                                     x + width - tree_view->priv->hadjustment->page_size);
9020       else if (tree_view->priv->hadjustment->value > x)
9021         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
9022   }
9023 }
9024
9025 /* This function could be more efficient.  I'll optimize it if profiling seems
9026  * to imply that it is important */
9027 GtkTreePath *
9028 _gtk_tree_view_find_path (GtkTreeView *tree_view,
9029                           GtkRBTree   *tree,
9030                           GtkRBNode   *node)
9031 {
9032   GtkTreePath *path;
9033   GtkRBTree *tmp_tree;
9034   GtkRBNode *tmp_node, *last;
9035   gint count;
9036
9037   path = gtk_tree_path_new ();
9038
9039   g_return_val_if_fail (node != NULL, path);
9040   g_return_val_if_fail (node != tree->nil, path);
9041
9042   count = 1 + node->left->count;
9043
9044   last = node;
9045   tmp_node = node->parent;
9046   tmp_tree = tree;
9047   while (tmp_tree)
9048     {
9049       while (tmp_node != tmp_tree->nil)
9050         {
9051           if (tmp_node->right == last)
9052             count += 1 + tmp_node->left->count;
9053           last = tmp_node;
9054           tmp_node = tmp_node->parent;
9055         }
9056       gtk_tree_path_prepend_index (path, count - 1);
9057       last = tmp_tree->parent_node;
9058       tmp_tree = tmp_tree->parent_tree;
9059       if (last)
9060         {
9061           count = 1 + last->left->count;
9062           tmp_node = last->parent;
9063         }
9064     }
9065   return path;
9066 }
9067
9068 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
9069  * invalid (ie. points to a node that's not in the tree), *tree and *node are
9070  * both set to NULL.
9071  */
9072 gboolean
9073 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
9074                           GtkTreePath  *path,
9075                           GtkRBTree   **tree,
9076                           GtkRBNode   **node)
9077 {
9078   GtkRBNode *tmpnode = NULL;
9079   GtkRBTree *tmptree = tree_view->priv->tree;
9080   gint *indices = gtk_tree_path_get_indices (path);
9081   gint depth = gtk_tree_path_get_depth (path);
9082   gint i = 0;
9083
9084   *node = NULL;
9085   *tree = NULL;
9086
9087   if (depth == 0 || tmptree == NULL)
9088     return FALSE;
9089   do
9090     {
9091       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9092       ++i;
9093       if (tmpnode == NULL)
9094         {
9095           *tree = NULL;
9096           *node = NULL;
9097           return FALSE;
9098         }
9099       if (i >= depth)
9100         {
9101           *tree = tmptree;
9102           *node = tmpnode;
9103           return FALSE;
9104         }
9105       *tree = tmptree;
9106       *node = tmpnode;
9107       tmptree = tmpnode->children;
9108       if (tmptree == NULL)
9109         return TRUE;
9110     }
9111   while (1);
9112 }
9113
9114 static gboolean
9115 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9116                                   GtkTreeViewColumn *column)
9117 {
9118   GList *list;
9119
9120   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9121     return FALSE;
9122
9123   if (tree_view->priv->expander_column != NULL)
9124     {
9125       if (tree_view->priv->expander_column == column)
9126         return TRUE;
9127       return FALSE;
9128     }
9129   else
9130     {
9131       for (list = tree_view->priv->columns;
9132            list;
9133            list = list->next)
9134         if (((GtkTreeViewColumn *)list->data)->visible)
9135           break;
9136       if (list && list->data == column)
9137         return TRUE;
9138     }
9139   return FALSE;
9140 }
9141
9142 static void
9143 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9144                                 guint           keyval,
9145                                 guint           modmask,
9146                                 gboolean        add_shifted_binding,
9147                                 GtkMovementStep step,
9148                                 gint            count)
9149 {
9150
9151   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9152                                 "move-cursor", 2,
9153                                 G_TYPE_ENUM, step,
9154                                 G_TYPE_INT, count);
9155
9156   if (add_shifted_binding)
9157     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9158                                   "move-cursor", 2,
9159                                   G_TYPE_ENUM, step,
9160                                   G_TYPE_INT, count);
9161
9162   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9163    return;
9164
9165   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9166                                 "move-cursor", 2,
9167                                 G_TYPE_ENUM, step,
9168                                 G_TYPE_INT, count);
9169
9170   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9171                                 "move-cursor", 2,
9172                                 G_TYPE_ENUM, step,
9173                                 G_TYPE_INT, count);
9174 }
9175
9176 static gint
9177 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9178                                  GtkTreeIter  *iter,
9179                                  GtkRBTree    *tree,
9180                                  GtkRBNode    *node)
9181 {
9182   gint retval = FALSE;
9183   do
9184     {
9185       g_return_val_if_fail (node != NULL, FALSE);
9186
9187       if (node->children)
9188         {
9189           GtkTreeIter child;
9190           GtkRBTree *new_tree;
9191           GtkRBNode *new_node;
9192
9193           new_tree = node->children;
9194           new_node = new_tree->root;
9195
9196           while (new_node && new_node->left != new_tree->nil)
9197             new_node = new_node->left;
9198
9199           if (!gtk_tree_model_iter_children (model, &child, iter))
9200             return FALSE;
9201
9202           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9203         }
9204
9205       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9206         retval = TRUE;
9207       gtk_tree_model_unref_node (model, iter);
9208       node = _gtk_rbtree_next (tree, node);
9209     }
9210   while (gtk_tree_model_iter_next (model, iter));
9211
9212   return retval;
9213 }
9214
9215 static gint
9216 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9217                                               GtkRBTree   *tree)
9218 {
9219   GtkTreeIter iter;
9220   GtkTreePath *path;
9221   GtkRBNode *node;
9222   gint retval;
9223
9224   if (!tree)
9225     return FALSE;
9226
9227   node = tree->root;
9228   while (node && node->left != tree->nil)
9229     node = node->left;
9230
9231   g_return_val_if_fail (node != NULL, FALSE);
9232   path = _gtk_tree_view_find_path (tree_view, tree, node);
9233   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9234                            &iter, path);
9235   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9236   gtk_tree_path_free (path);
9237
9238   return retval;
9239 }
9240
9241 static void
9242 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9243                                     GtkTreeViewColumn *column)
9244 {
9245   GtkTreeViewColumn *left_column;
9246   GtkTreeViewColumn *cur_column = NULL;
9247   GtkTreeViewColumnReorder *reorder;
9248   gboolean rtl;
9249   GList *tmp_list;
9250   gint left;
9251
9252   /* We want to precalculate the motion list such that we know what column slots
9253    * are available.
9254    */
9255   left_column = NULL;
9256   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9257
9258   /* First, identify all possible drop spots */
9259   if (rtl)
9260     tmp_list = g_list_last (tree_view->priv->columns);
9261   else
9262     tmp_list = g_list_first (tree_view->priv->columns);
9263
9264   while (tmp_list)
9265     {
9266       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9267       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9268
9269       if (cur_column->visible == FALSE)
9270         continue;
9271
9272       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9273       if (left_column != column && cur_column != column &&
9274           tree_view->priv->column_drop_func &&
9275           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9276         {
9277           left_column = cur_column;
9278           continue;
9279         }
9280       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9281       reorder->left_column = left_column;
9282       left_column = reorder->right_column = cur_column;
9283
9284       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9285     }
9286
9287   /* Add the last one */
9288   if (tree_view->priv->column_drop_func == NULL ||
9289       ((left_column != column) &&
9290        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9291     {
9292       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9293       reorder->left_column = left_column;
9294       reorder->right_column = NULL;
9295       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9296     }
9297
9298   /* We quickly check to see if it even makes sense to reorder columns. */
9299   /* If there is nothing that can be moved, then we return */
9300
9301   if (tree_view->priv->column_drag_info == NULL)
9302     return;
9303
9304   /* We know there are always 2 slots possbile, as you can always return column. */
9305   /* If that's all there is, return */
9306   if (tree_view->priv->column_drag_info->next == NULL ||
9307       (tree_view->priv->column_drag_info->next->next == NULL &&
9308        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9309        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9310     {
9311       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9312         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9313       g_list_free (tree_view->priv->column_drag_info);
9314       tree_view->priv->column_drag_info = NULL;
9315       return;
9316     }
9317   /* We fill in the ranges for the columns, now that we've isolated them */
9318   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9319
9320   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9321     {
9322       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9323
9324       reorder->left_align = left;
9325       if (tmp_list->next != NULL)
9326         {
9327           GtkAllocation right_allocation, left_allocation;
9328
9329           g_assert (tmp_list->next->data);
9330
9331           gtk_widget_get_allocation (reorder->right_column->button, &right_allocation);
9332           gtk_widget_get_allocation (((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button, &left_allocation);
9333           left = reorder->right_align = (right_allocation.x + right_allocation.width + left_allocation.x) / 2;
9334         }
9335       else
9336         {
9337           gint width;
9338
9339           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9340           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9341         }
9342     }
9343 }
9344
9345 void
9346 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9347                                   GtkTreeViewColumn *column,
9348                                   GdkDevice         *device)
9349 {
9350   GdkEvent *send_event;
9351   GtkAllocation allocation;
9352   GtkAllocation button_allocation;
9353   gint x, y, width, height;
9354   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9355   GdkDisplay *display = gdk_screen_get_display (screen);
9356
9357   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9358   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9359
9360   gtk_tree_view_set_column_drag_info (tree_view, column);
9361
9362   if (tree_view->priv->column_drag_info == NULL)
9363     return;
9364
9365   if (tree_view->priv->drag_window == NULL)
9366     {
9367       GdkWindowAttr attributes;
9368       guint attributes_mask;
9369
9370       gtk_widget_get_allocation (column->button, &button_allocation);
9371
9372       attributes.window_type = GDK_WINDOW_CHILD;
9373       attributes.wclass = GDK_INPUT_OUTPUT;
9374       attributes.x = button_allocation.x;
9375       attributes.y = 0;
9376       attributes.width = button_allocation.width;
9377       attributes.height = button_allocation.height;
9378       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9379       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9380       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
9381
9382       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9383                                                      &attributes,
9384                                                      attributes_mask);
9385       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9386     }
9387
9388   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9389   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9390
9391   gtk_grab_remove (column->button);
9392
9393   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9394   send_event->crossing.send_event = TRUE;
9395   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9396   send_event->crossing.subwindow = NULL;
9397   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9398   send_event->crossing.time = GDK_CURRENT_TIME;
9399   gdk_event_set_device (send_event, device);
9400
9401   gtk_propagate_event (column->button, send_event);
9402   gdk_event_free (send_event);
9403
9404   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9405   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9406   send_event->button.send_event = TRUE;
9407   send_event->button.time = GDK_CURRENT_TIME;
9408   send_event->button.x = -1;
9409   send_event->button.y = -1;
9410   send_event->button.axes = NULL;
9411   send_event->button.state = 0;
9412   send_event->button.button = 1;
9413   send_event->button.x_root = 0;
9414   send_event->button.y_root = 0;
9415   gdk_event_set_device (send_event, device);
9416
9417   gtk_propagate_event (column->button, send_event);
9418   gdk_event_free (send_event);
9419
9420   /* Kids, don't try this at home */
9421   g_object_ref (column->button);
9422   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9423   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9424   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9425   g_object_unref (column->button);
9426
9427   gtk_widget_get_allocation (column->button, &button_allocation);
9428   tree_view->priv->drag_column_x = button_allocation.x;
9429   allocation = button_allocation;
9430   allocation.x = 0;
9431   gtk_widget_size_allocate (column->button, &allocation);
9432   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9433
9434   tree_view->priv->drag_column = column;
9435   gdk_window_show (tree_view->priv->drag_window);
9436
9437   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9438   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9439
9440   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9441   while (gtk_events_pending ())
9442     gtk_main_iteration ();
9443
9444   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9445   gdk_pointer_grab (tree_view->priv->drag_window,
9446                     FALSE,
9447                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9448                     NULL, NULL, GDK_CURRENT_TIME);
9449   gdk_keyboard_grab (tree_view->priv->drag_window,
9450                      FALSE,
9451                      GDK_CURRENT_TIME);
9452 }
9453
9454 static void
9455 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9456                                 GtkRBTree          *tree,
9457                                 GtkRBNode          *node,
9458                                 const GdkRectangle *clip_rect)
9459 {
9460   GtkAllocation allocation;
9461   GdkRectangle rect;
9462
9463   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
9464     return;
9465
9466   gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
9467   rect.x = 0;
9468   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, allocation.width));
9469
9470   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9471   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9472
9473   if (clip_rect)
9474     {
9475       GdkRectangle new_rect;
9476
9477       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9478
9479       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9480     }
9481   else
9482     {
9483       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9484     }
9485 }
9486
9487 void
9488 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9489                                 GtkRBTree          *tree,
9490                                 GtkRBNode          *node,
9491                                 const GdkRectangle *clip_rect)
9492 {
9493   GtkAllocation allocation;
9494   GdkRectangle rect;
9495
9496   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
9497     return;
9498
9499   gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
9500   rect.x = 0;
9501   rect.width = MAX (tree_view->priv->width, allocation.width);
9502
9503   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9504   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9505
9506   if (clip_rect)
9507     {
9508       GdkRectangle new_rect;
9509
9510       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9511
9512       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9513     }
9514   else
9515     {
9516       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9517     }
9518 }
9519
9520 static void
9521 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9522                                GtkTreePath        *path,
9523                                const GdkRectangle *clip_rect)
9524 {
9525   GtkRBTree *tree = NULL;
9526   GtkRBNode *node = NULL;
9527
9528   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9529
9530   if (tree)
9531     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9532 }
9533
9534 /* x and y are the mouse position
9535  */
9536 static void
9537 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9538                           GtkRBTree   *tree,
9539                           GtkRBNode   *node,
9540                           /* in bin_window coordinates */
9541                           gint         x,
9542                           gint         y)
9543 {
9544   GdkRectangle area;
9545   GtkStateType state;
9546   GtkWidget *widget;
9547   gint x_offset = 0;
9548   gint x2;
9549   gint vertical_separator;
9550   gint expander_size;
9551   GtkExpanderStyle expander_style;
9552
9553   widget = GTK_WIDGET (tree_view);
9554
9555   gtk_widget_style_get (widget,
9556                         "vertical-separator", &vertical_separator,
9557                         NULL);
9558   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9559
9560   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9561     return;
9562
9563   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9564
9565   area.x = x_offset;
9566   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9567   area.width = expander_size + 2;
9568   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9569
9570   if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
9571     {
9572       state = GTK_STATE_INSENSITIVE;
9573     }
9574   else if (node == tree_view->priv->button_pressed_node)
9575     {
9576       if (x >= area.x && x <= (area.x + area.width) &&
9577           y >= area.y && y <= (area.y + area.height))
9578         state = GTK_STATE_ACTIVE;
9579       else
9580         state = GTK_STATE_NORMAL;
9581     }
9582   else
9583     {
9584       if (node == tree_view->priv->prelight_node &&
9585           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9586         state = GTK_STATE_PRELIGHT;
9587       else
9588         state = GTK_STATE_NORMAL;
9589     }
9590
9591   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9592     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9593   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9594     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9595   else if (node->children != NULL)
9596     expander_style = GTK_EXPANDER_EXPANDED;
9597   else
9598     expander_style = GTK_EXPANDER_COLLAPSED;
9599
9600   gtk_paint_expander (gtk_widget_get_style (widget),
9601                       tree_view->priv->bin_window,
9602                       state,
9603                       &area,
9604                       widget,
9605                       "treeview",
9606                       area.x + area.width / 2,
9607                       area.y + area.height / 2,
9608                       expander_style);
9609 }
9610
9611 static void
9612 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9613
9614 {
9615   GtkTreePath *cursor_path;
9616
9617   if ((tree_view->priv->tree == NULL) ||
9618       (! gtk_widget_get_realized (GTK_WIDGET (tree_view))))
9619     return;
9620
9621   cursor_path = NULL;
9622   if (tree_view->priv->cursor)
9623     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9624
9625   if (cursor_path == NULL)
9626     {
9627       /* Consult the selection before defaulting to the
9628        * first focusable element
9629        */
9630       GList *selected_rows;
9631       GtkTreeModel *model;
9632       GtkTreeSelection *selection;
9633
9634       selection = gtk_tree_view_get_selection (tree_view);
9635       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9636
9637       if (selected_rows)
9638         {
9639           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9640           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9641           g_list_free (selected_rows);
9642         }
9643       else
9644         {
9645           cursor_path = gtk_tree_path_new_first ();
9646           search_first_focusable_path (tree_view, &cursor_path,
9647                                        TRUE, NULL, NULL);
9648         }
9649
9650       gtk_tree_row_reference_free (tree_view->priv->cursor);
9651       tree_view->priv->cursor = NULL;
9652
9653       if (cursor_path)
9654         {
9655           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9656             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9657           else
9658             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9659         }
9660     }
9661
9662   if (cursor_path)
9663     {
9664       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9665
9666       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9667       gtk_tree_path_free (cursor_path);
9668
9669       if (tree_view->priv->focus_column == NULL)
9670         {
9671           GList *list;
9672           for (list = tree_view->priv->columns; list; list = list->next)
9673             {
9674               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9675                 {
9676                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9677                   break;
9678                 }
9679             }
9680         }
9681     }
9682 }
9683
9684 static void
9685 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9686                                    gint         count)
9687 {
9688   gint selection_count;
9689   GtkRBTree *cursor_tree = NULL;
9690   GtkRBNode *cursor_node = NULL;
9691   GtkRBTree *new_cursor_tree = NULL;
9692   GtkRBNode *new_cursor_node = NULL;
9693   GtkTreePath *cursor_path = NULL;
9694   gboolean grab_focus = TRUE;
9695   gboolean selectable;
9696
9697   if (! gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9698     return;
9699
9700   cursor_path = NULL;
9701   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9702     /* FIXME: we lost the cursor; should we get the first? */
9703     return;
9704
9705   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9706   _gtk_tree_view_find_node (tree_view, cursor_path,
9707                             &cursor_tree, &cursor_node);
9708
9709   if (cursor_tree == NULL)
9710     /* FIXME: we lost the cursor; should we get the first? */
9711     return;
9712
9713   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9714   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9715                                                       cursor_node,
9716                                                       cursor_path);
9717
9718   if (selection_count == 0
9719       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9720       && !tree_view->priv->ctrl_pressed
9721       && selectable)
9722     {
9723       /* Don't move the cursor, but just select the current node */
9724       new_cursor_tree = cursor_tree;
9725       new_cursor_node = cursor_node;
9726     }
9727   else
9728     {
9729       if (count == -1)
9730         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9731                                &new_cursor_tree, &new_cursor_node);
9732       else
9733         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9734                                &new_cursor_tree, &new_cursor_node);
9735     }
9736
9737   gtk_tree_path_free (cursor_path);
9738
9739   if (new_cursor_node)
9740     {
9741       cursor_path = _gtk_tree_view_find_path (tree_view,
9742                                               new_cursor_tree, new_cursor_node);
9743
9744       search_first_focusable_path (tree_view, &cursor_path,
9745                                    (count != -1),
9746                                    &new_cursor_tree,
9747                                    &new_cursor_node);
9748
9749       if (cursor_path)
9750         gtk_tree_path_free (cursor_path);
9751     }
9752
9753   /*
9754    * If the list has only one item and multi-selection is set then select
9755    * the row (if not yet selected).
9756    */
9757   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9758       new_cursor_node == NULL)
9759     {
9760       if (count == -1)
9761         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9762                                &new_cursor_tree, &new_cursor_node);
9763       else
9764         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9765                                &new_cursor_tree, &new_cursor_node);
9766
9767       if (new_cursor_node == NULL
9768           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9769         {
9770           new_cursor_node = cursor_node;
9771           new_cursor_tree = cursor_tree;
9772         }
9773       else
9774         {
9775           new_cursor_node = NULL;
9776         }
9777     }
9778
9779   if (new_cursor_node)
9780     {
9781       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9782       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9783       gtk_tree_path_free (cursor_path);
9784     }
9785   else
9786     {
9787       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9788
9789       if (!tree_view->priv->shift_pressed)
9790         {
9791           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9792                                           count < 0 ?
9793                                           GTK_DIR_UP : GTK_DIR_DOWN))
9794             {
9795               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9796
9797               if (toplevel)
9798                 gtk_widget_child_focus (toplevel,
9799                                         count < 0 ?
9800                                         GTK_DIR_TAB_BACKWARD :
9801                                         GTK_DIR_TAB_FORWARD);
9802
9803               grab_focus = FALSE;
9804             }
9805         }
9806       else
9807         {
9808           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9809         }
9810     }
9811
9812   if (grab_focus)
9813     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9814 }
9815
9816 static void
9817 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9818                                         gint         count)
9819 {
9820   GtkRBTree *cursor_tree = NULL;
9821   GtkRBNode *cursor_node = NULL;
9822   GtkTreePath *old_cursor_path = NULL;
9823   GtkTreePath *cursor_path = NULL;
9824   GtkRBTree *start_cursor_tree = NULL;
9825   GtkRBNode *start_cursor_node = NULL;
9826   gint y;
9827   gint window_y;
9828   gint vertical_separator;
9829
9830   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9831     return;
9832
9833   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9834     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9835   else
9836     /* This is sorta weird.  Focus in should give us a cursor */
9837     return;
9838
9839   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9840   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9841                             &cursor_tree, &cursor_node);
9842
9843   if (cursor_tree == NULL)
9844     {
9845       /* FIXME: we lost the cursor.  Should we try to get one? */
9846       gtk_tree_path_free (old_cursor_path);
9847       return;
9848     }
9849   g_return_if_fail (cursor_node != NULL);
9850
9851   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9852   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9853   y += tree_view->priv->cursor_offset;
9854   y += count * (int)tree_view->priv->vadjustment->page_increment;
9855   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9856
9857   if (y >= tree_view->priv->height)
9858     y = tree_view->priv->height - 1;
9859
9860   tree_view->priv->cursor_offset =
9861     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9862                              &cursor_tree, &cursor_node);
9863
9864   if (cursor_tree == NULL)
9865     {
9866       /* FIXME: we lost the cursor.  Should we try to get one? */
9867       gtk_tree_path_free (old_cursor_path);
9868       return;
9869     }
9870
9871   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9872     {
9873       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9874                              &cursor_tree, &cursor_node);
9875       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9876     }
9877
9878   y -= tree_view->priv->cursor_offset;
9879   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9880
9881   start_cursor_tree = cursor_tree;
9882   start_cursor_node = cursor_node;
9883
9884   if (! search_first_focusable_path (tree_view, &cursor_path,
9885                                      (count != -1),
9886                                      &cursor_tree, &cursor_node))
9887     {
9888       /* It looks like we reached the end of the view without finding
9889        * a focusable row.  We will step backwards to find the last
9890        * focusable row.
9891        */
9892       cursor_tree = start_cursor_tree;
9893       cursor_node = start_cursor_node;
9894       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9895
9896       search_first_focusable_path (tree_view, &cursor_path,
9897                                    (count == -1),
9898                                    &cursor_tree, &cursor_node);
9899     }
9900
9901   if (!cursor_path)
9902     goto cleanup;
9903
9904   /* update y */
9905   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9906
9907   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9908
9909   y -= window_y;
9910   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9911   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9912   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9913
9914   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9915     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9916
9917   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9918
9919 cleanup:
9920   gtk_tree_path_free (old_cursor_path);
9921   gtk_tree_path_free (cursor_path);
9922 }
9923
9924 static void
9925 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9926                                       gint         count)
9927 {
9928   GtkRBTree *cursor_tree = NULL;
9929   GtkRBNode *cursor_node = NULL;
9930   GtkTreePath *cursor_path = NULL;
9931   GtkTreeViewColumn *column;
9932   GtkTreeIter iter;
9933   GList *list;
9934   gboolean found_column = FALSE;
9935   gboolean rtl;
9936
9937   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9938
9939   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9940     return;
9941
9942   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9943     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9944   else
9945     return;
9946
9947   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9948   if (cursor_tree == NULL)
9949     return;
9950   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9951     {
9952       gtk_tree_path_free (cursor_path);
9953       return;
9954     }
9955   gtk_tree_path_free (cursor_path);
9956
9957   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9958   if (tree_view->priv->focus_column)
9959     {
9960       for (; list; list = (rtl ? list->prev : list->next))
9961         {
9962           if (list->data == tree_view->priv->focus_column)
9963             break;
9964         }
9965     }
9966
9967   while (list)
9968     {
9969       gboolean left, right;
9970
9971       column = list->data;
9972       if (column->visible == FALSE)
9973         goto loop_end;
9974
9975       gtk_tree_view_column_cell_set_cell_data (column,
9976                                                tree_view->priv->model,
9977                                                &iter,
9978                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9979                                                cursor_node->children?TRUE:FALSE);
9980
9981       if (rtl)
9982         {
9983           right = list->prev ? TRUE : FALSE;
9984           left = list->next ? TRUE : FALSE;
9985         }
9986       else
9987         {
9988           left = list->prev ? TRUE : FALSE;
9989           right = list->next ? TRUE : FALSE;
9990         }
9991
9992       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9993         {
9994           tree_view->priv->focus_column = column;
9995           found_column = TRUE;
9996           break;
9997         }
9998     loop_end:
9999       if (count == 1)
10000         list = rtl ? list->prev : list->next;
10001       else
10002         list = rtl ? list->next : list->prev;
10003     }
10004
10005   if (found_column)
10006     {
10007       if (!gtk_tree_view_has_special_cell (tree_view))
10008         _gtk_tree_view_queue_draw_node (tree_view,
10009                                         cursor_tree,
10010                                         cursor_node,
10011                                         NULL);
10012       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
10013       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10014     }
10015   else
10016     {
10017       gtk_widget_error_bell (GTK_WIDGET (tree_view));
10018     }
10019
10020   gtk_tree_view_clamp_column_visible (tree_view,
10021                                       tree_view->priv->focus_column, TRUE);
10022 }
10023
10024 static void
10025 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
10026                                      gint         count)
10027 {
10028   GtkRBTree *cursor_tree;
10029   GtkRBNode *cursor_node;
10030   GtkTreePath *path;
10031   GtkTreePath *old_path;
10032
10033   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10034     return;
10035
10036   g_return_if_fail (tree_view->priv->tree != NULL);
10037
10038   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
10039
10040   cursor_tree = tree_view->priv->tree;
10041   cursor_node = cursor_tree->root;
10042
10043   if (count == -1)
10044     {
10045       while (cursor_node && cursor_node->left != cursor_tree->nil)
10046         cursor_node = cursor_node->left;
10047
10048       /* Now go forward to find the first focusable row. */
10049       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
10050       search_first_focusable_path (tree_view, &path,
10051                                    TRUE, &cursor_tree, &cursor_node);
10052     }
10053   else
10054     {
10055       do
10056         {
10057           while (cursor_node && cursor_node->right != cursor_tree->nil)
10058             cursor_node = cursor_node->right;
10059           if (cursor_node->children == NULL)
10060             break;
10061
10062           cursor_tree = cursor_node->children;
10063           cursor_node = cursor_tree->root;
10064         }
10065       while (1);
10066
10067       /* Now go backwards to find last focusable row. */
10068       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
10069       search_first_focusable_path (tree_view, &path,
10070                                    FALSE, &cursor_tree, &cursor_node);
10071     }
10072
10073   if (!path)
10074     goto cleanup;
10075
10076   if (gtk_tree_path_compare (old_path, path))
10077     {
10078       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
10079       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10080     }
10081   else
10082     {
10083       gtk_widget_error_bell (GTK_WIDGET (tree_view));
10084     }
10085
10086 cleanup:
10087   gtk_tree_path_free (old_path);
10088   gtk_tree_path_free (path);
10089 }
10090
10091 static gboolean
10092 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
10093 {
10094   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10095     return FALSE;
10096
10097   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10098     return FALSE;
10099
10100   gtk_tree_selection_select_all (tree_view->priv->selection);
10101
10102   return TRUE;
10103 }
10104
10105 static gboolean
10106 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10107 {
10108   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10109     return FALSE;
10110
10111   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10112     return FALSE;
10113
10114   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10115
10116   return TRUE;
10117 }
10118
10119 static gboolean
10120 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10121                                       gboolean     start_editing)
10122 {
10123   GtkRBTree *new_tree = NULL;
10124   GtkRBNode *new_node = NULL;
10125   GtkRBTree *cursor_tree = NULL;
10126   GtkRBNode *cursor_node = NULL;
10127   GtkTreePath *cursor_path = NULL;
10128   GtkTreeSelectMode mode = 0;
10129
10130   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10131     return FALSE;
10132
10133   if (tree_view->priv->cursor)
10134     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10135
10136   if (cursor_path == NULL)
10137     return FALSE;
10138
10139   _gtk_tree_view_find_node (tree_view, cursor_path,
10140                             &cursor_tree, &cursor_node);
10141
10142   if (cursor_tree == NULL)
10143     {
10144       gtk_tree_path_free (cursor_path);
10145       return FALSE;
10146     }
10147
10148   if (!tree_view->priv->shift_pressed && start_editing &&
10149       tree_view->priv->focus_column)
10150     {
10151       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10152         {
10153           gtk_tree_path_free (cursor_path);
10154           return TRUE;
10155         }
10156     }
10157
10158   if (tree_view->priv->ctrl_pressed)
10159     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10160   if (tree_view->priv->shift_pressed)
10161     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10162
10163   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10164                                             cursor_node,
10165                                             cursor_tree,
10166                                             cursor_path,
10167                                             mode,
10168                                             FALSE);
10169
10170   /* We bail out if the original (tree, node) don't exist anymore after
10171    * handling the selection-changed callback.  We do return TRUE because
10172    * the key press has been handled at this point.
10173    */
10174   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10175
10176   if (cursor_tree != new_tree || cursor_node != new_node)
10177     return FALSE;
10178
10179   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10180
10181   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10182   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10183
10184   if (!tree_view->priv->shift_pressed)
10185     gtk_tree_view_row_activated (tree_view, cursor_path,
10186                                  tree_view->priv->focus_column);
10187
10188   gtk_tree_path_free (cursor_path);
10189
10190   return TRUE;
10191 }
10192
10193 static gboolean
10194 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10195 {
10196   GtkRBTree *new_tree = NULL;
10197   GtkRBNode *new_node = NULL;
10198   GtkRBTree *cursor_tree = NULL;
10199   GtkRBNode *cursor_node = NULL;
10200   GtkTreePath *cursor_path = NULL;
10201
10202   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10203     return FALSE;
10204
10205   cursor_path = NULL;
10206   if (tree_view->priv->cursor)
10207     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10208
10209   if (cursor_path == NULL)
10210     return FALSE;
10211
10212   _gtk_tree_view_find_node (tree_view, cursor_path,
10213                             &cursor_tree, &cursor_node);
10214   if (cursor_tree == NULL)
10215     {
10216       gtk_tree_path_free (cursor_path);
10217       return FALSE;
10218     }
10219
10220   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10221                                             cursor_node,
10222                                             cursor_tree,
10223                                             cursor_path,
10224                                             GTK_TREE_SELECT_MODE_TOGGLE,
10225                                             FALSE);
10226
10227   /* We bail out if the original (tree, node) don't exist anymore after
10228    * handling the selection-changed callback.  We do return TRUE because
10229    * the key press has been handled at this point.
10230    */
10231   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10232
10233   if (cursor_tree != new_tree || cursor_node != new_node)
10234     return FALSE;
10235
10236   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10237
10238   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10239   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10240   gtk_tree_path_free (cursor_path);
10241
10242   return TRUE;
10243 }
10244
10245 static gboolean
10246 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10247                                                gboolean     logical,
10248                                                gboolean     expand,
10249                                                gboolean     open_all)
10250 {
10251   GtkTreePath *cursor_path = NULL;
10252   GtkRBTree *tree;
10253   GtkRBNode *node;
10254
10255   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10256     return FALSE;
10257
10258   cursor_path = NULL;
10259   if (tree_view->priv->cursor)
10260     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10261
10262   if (cursor_path == NULL)
10263     return FALSE;
10264
10265   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10266     return FALSE;
10267
10268   /* Don't handle the event if we aren't an expander */
10269   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10270     return FALSE;
10271
10272   if (!logical
10273       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10274     expand = !expand;
10275
10276   if (expand)
10277     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10278   else
10279     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10280
10281   gtk_tree_path_free (cursor_path);
10282
10283   return TRUE;
10284 }
10285
10286 static gboolean
10287 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10288 {
10289   GtkRBTree *cursor_tree = NULL;
10290   GtkRBNode *cursor_node = NULL;
10291   GtkTreePath *cursor_path = NULL;
10292   GdkModifierType state;
10293
10294   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10295     goto out;
10296
10297   cursor_path = NULL;
10298   if (tree_view->priv->cursor)
10299     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10300
10301   if (cursor_path == NULL)
10302     goto out;
10303
10304   _gtk_tree_view_find_node (tree_view, cursor_path,
10305                             &cursor_tree, &cursor_node);
10306   if (cursor_tree == NULL)
10307     {
10308       gtk_tree_path_free (cursor_path);
10309       goto out;
10310     }
10311
10312   if (cursor_tree->parent_node)
10313     {
10314       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10315       cursor_node = cursor_tree->parent_node;
10316       cursor_tree = cursor_tree->parent_tree;
10317
10318       gtk_tree_path_up (cursor_path);
10319
10320       if (gtk_get_current_event_state (&state))
10321         {
10322           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10323             tree_view->priv->ctrl_pressed = TRUE;
10324         }
10325
10326       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10327       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10328
10329       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10330       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10331       gtk_tree_path_free (cursor_path);
10332
10333       tree_view->priv->ctrl_pressed = FALSE;
10334
10335       return TRUE;
10336     }
10337
10338  out:
10339
10340   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10341   return FALSE;
10342 }
10343
10344 static gboolean
10345 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10346 {
10347   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view, NULL);
10348   tree_view->priv->typeselect_flush_timeout = 0;
10349
10350   return FALSE;
10351 }
10352
10353 /* Cut and paste from gtkwindow.c */
10354 static void
10355 send_focus_change (GtkWidget *widget,
10356                    GdkDevice *device,
10357                    gboolean   in)
10358 {
10359   GdkDeviceManager *device_manager;
10360   GList *devices, *d;
10361
10362   device_manager = gdk_display_get_device_manager (gtk_widget_get_display (widget));
10363   devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
10364   devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_SLAVE));
10365   devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING));
10366
10367   for (d = devices; d; d = d->next)
10368     {
10369       GdkDevice *dev = d->data;
10370       GdkEvent *fevent;
10371       GdkWindow *window;
10372
10373       if (dev->source != GDK_SOURCE_KEYBOARD)
10374         continue;
10375
10376       window = gtk_widget_get_window (widget);
10377
10378       /* Skip non-master keyboards that haven't
10379        * selected for events from this window
10380        */
10381       if (gdk_device_get_device_type (dev) != GDK_DEVICE_TYPE_MASTER &&
10382           !gdk_window_get_device_events (window, dev))
10383         continue;
10384
10385       fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10386
10387       fevent->focus_change.type = GDK_FOCUS_CHANGE;
10388       fevent->focus_change.window = g_object_ref (window);
10389       fevent->focus_change.in = in;
10390       gdk_event_set_device (fevent, device);
10391
10392       gtk_widget_send_focus_change (widget, fevent);
10393
10394       gdk_event_free (fevent);
10395     }
10396 }
10397
10398 static void
10399 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10400 {
10401   GtkWidget *frame, *vbox, *toplevel;
10402   GdkScreen *screen;
10403
10404   if (tree_view->priv->search_custom_entry_set)
10405     return;
10406
10407   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10408   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10409
10410    if (tree_view->priv->search_window != NULL)
10411      {
10412        if (gtk_window_has_group (GTK_WINDOW (toplevel)))
10413          gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
10414                                       GTK_WINDOW (tree_view->priv->search_window));
10415        else if (gtk_window_has_group (GTK_WINDOW (tree_view->priv->search_window)))
10416          gtk_window_group_remove_window (gtk_window_get_group (GTK_WINDOW (tree_view->priv->search_window)),
10417                                          GTK_WINDOW (tree_view->priv->search_window));
10418
10419        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10420
10421        return;
10422      }
10423
10424   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10425   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10426
10427   if (gtk_window_has_group (GTK_WINDOW (toplevel)))
10428     gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
10429                                  GTK_WINDOW (tree_view->priv->search_window));
10430
10431   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10432                             GDK_WINDOW_TYPE_HINT_UTILITY);
10433   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10434   g_signal_connect (tree_view->priv->search_window, "delete-event",
10435                     G_CALLBACK (gtk_tree_view_search_delete_event),
10436                     tree_view);
10437   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10438                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10439                     tree_view);
10440   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10441                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10442                     tree_view);
10443   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10444                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10445                     tree_view);
10446
10447   frame = gtk_frame_new (NULL);
10448   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10449   gtk_widget_show (frame);
10450   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10451
10452   vbox = gtk_vbox_new (FALSE, 0);
10453   gtk_widget_show (vbox);
10454   gtk_container_add (GTK_CONTAINER (frame), vbox);
10455   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10456
10457   /* add entry */
10458   tree_view->priv->search_entry = gtk_entry_new ();
10459   gtk_widget_show (tree_view->priv->search_entry);
10460   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10461                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10462                     tree_view);
10463   g_signal_connect (tree_view->priv->search_entry,
10464                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10465                     tree_view);
10466   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10467                     "preedit-changed",
10468                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10469                     tree_view);
10470   gtk_container_add (GTK_CONTAINER (vbox),
10471                      tree_view->priv->search_entry);
10472
10473   gtk_widget_realize (tree_view->priv->search_entry);
10474 }
10475
10476 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10477  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10478  */
10479 static gboolean
10480 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10481                                              GdkDevice   *device,
10482                                              gboolean     keybinding)
10483 {
10484   /* We only start interactive search if we have focus or the columns
10485    * have focus.  If one of our children have focus, we don't want to
10486    * start the search.
10487    */
10488   GList *list;
10489   gboolean found_focus = FALSE;
10490   GtkWidgetClass *entry_parent_class;
10491
10492   if (!tree_view->priv->enable_search && !keybinding)
10493     return FALSE;
10494
10495   if (tree_view->priv->search_custom_entry_set)
10496     return FALSE;
10497
10498   if (tree_view->priv->search_window != NULL &&
10499       gtk_widget_get_visible (tree_view->priv->search_window))
10500     return TRUE;
10501
10502   for (list = tree_view->priv->columns; list; list = list->next)
10503     {
10504       GtkTreeViewColumn *column;
10505
10506       column = list->data;
10507       if (! column->visible)
10508         continue;
10509
10510       if (gtk_widget_has_focus (column->button))
10511         {
10512           found_focus = TRUE;
10513           break;
10514         }
10515     }
10516
10517   if (gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10518     found_focus = TRUE;
10519
10520   if (!found_focus)
10521     return FALSE;
10522
10523   if (tree_view->priv->search_column < 0)
10524     return FALSE;
10525
10526   gtk_tree_view_ensure_interactive_directory (tree_view);
10527
10528   if (keybinding)
10529     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10530
10531   /* done, show it */
10532   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10533   gtk_widget_show (tree_view->priv->search_window);
10534   if (tree_view->priv->search_entry_changed_id == 0)
10535     {
10536       tree_view->priv->search_entry_changed_id =
10537         g_signal_connect (tree_view->priv->search_entry, "changed",
10538                           G_CALLBACK (gtk_tree_view_search_init),
10539                           tree_view);
10540     }
10541
10542   tree_view->priv->typeselect_flush_timeout =
10543     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10544                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10545                    tree_view);
10546
10547   /* Grab focus will select all the text.  We don't want that to happen, so we
10548    * call the parent instance and bypass the selection change.  This is probably
10549    * really non-kosher. */
10550   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10551   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10552
10553   /* send focus-in event */
10554   send_focus_change (tree_view->priv->search_entry, device, TRUE);
10555
10556   /* search first matching iter */
10557   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10558
10559   return TRUE;
10560 }
10561
10562 static gboolean
10563 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10564 {
10565   return gtk_tree_view_real_start_interactive_search (tree_view,
10566                                                       gtk_get_current_event_device (),
10567                                                       TRUE);
10568 }
10569
10570 /* this function returns the new width of the column being resized given
10571  * the column and x position of the cursor; the x cursor position is passed
10572  * in as a pointer and automagicly corrected if it's beyond min/max limits
10573  */
10574 static gint
10575 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10576                                 gint       i,
10577                                 gint      *x)
10578 {
10579   GtkAllocation allocation;
10580   GtkTreeViewColumn *column;
10581   GtkRequisition button_req;
10582   gint width;
10583   gboolean rtl;
10584
10585   /* first translate the x position from widget->window
10586    * to clist->clist_window
10587    */
10588   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10589   column = g_list_nth (tree_view->priv->columns, i)->data;
10590   gtk_widget_get_allocation (column->button, &allocation);
10591   width = rtl ? (allocation.x + allocation.width - *x) : (*x - allocation.x);
10592
10593   /* Clamp down the value */
10594   if (column->min_width == -1)
10595     {
10596       gtk_size_request_get_size (GTK_SIZE_REQUEST (column->button), &button_req, NULL);
10597       width = MAX (button_req.width, width);
10598     }
10599   else
10600     width = MAX (column->min_width,
10601                  width);
10602   if (column->max_width != -1)
10603     width = MIN (width, column->max_width);
10604
10605   *x = rtl ? (allocation.x + allocation.width - width) : (allocation.x + width);
10606
10607   return width;
10608 }
10609
10610
10611 /* FIXME this adjust_allocation is a big cut-and-paste from
10612  * GtkCList, needs to be some "official" way to do this
10613  * factored out.
10614  */
10615 typedef struct
10616 {
10617   GdkWindow *window;
10618   int dx;
10619   int dy;
10620 } ScrollData;
10621
10622 /* The window to which widget->window is relative */
10623 #define ALLOCATION_WINDOW(widget)               \
10624    (!gtk_widget_get_has_window (widget) ?                   \
10625     gtk_widget_get_window (widget) :                        \
10626     gdk_window_get_parent (gtk_widget_get_window (widget)))
10627
10628 static void
10629 adjust_allocation_recurse (GtkWidget *widget,
10630                            gpointer   data)
10631 {
10632   GtkAllocation allocation;
10633   ScrollData *scroll_data = data;
10634
10635   /* Need to really size allocate instead of just poking
10636    * into widget->allocation if the widget is not realized.
10637    * FIXME someone figure out why this was.
10638    */
10639   gtk_widget_get_allocation (widget, &allocation);
10640   if (!gtk_widget_get_realized (widget))
10641     {
10642       if (gtk_widget_get_visible (widget))
10643         {
10644           GdkRectangle tmp_rectangle = allocation;
10645           tmp_rectangle.x += scroll_data->dx;
10646           tmp_rectangle.y += scroll_data->dy;
10647
10648           gtk_widget_size_allocate (widget, &tmp_rectangle);
10649         }
10650     }
10651   else
10652     {
10653       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10654         {
10655           allocation.x += scroll_data->dx;
10656           allocation.y += scroll_data->dy;
10657           gtk_widget_set_allocation (widget, &allocation);
10658
10659           if (GTK_IS_CONTAINER (widget))
10660             gtk_container_forall (GTK_CONTAINER (widget),
10661                                   adjust_allocation_recurse,
10662                                   data);
10663         }
10664     }
10665 }
10666
10667 static void
10668 adjust_allocation (GtkWidget *widget,
10669                    int        dx,
10670                    int        dy)
10671 {
10672   ScrollData scroll_data;
10673
10674   if (gtk_widget_get_realized (widget))
10675     scroll_data.window = ALLOCATION_WINDOW (widget);
10676   else
10677     scroll_data.window = NULL;
10678
10679   scroll_data.dx = dx;
10680   scroll_data.dy = dy;
10681
10682   adjust_allocation_recurse (widget, &scroll_data);
10683 }
10684
10685 /* Callbacks */
10686 static void
10687 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10688                                   GtkTreeView   *tree_view)
10689 {
10690   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
10691     {
10692       gint dy;
10693
10694       gdk_window_move (tree_view->priv->bin_window,
10695                        - tree_view->priv->hadjustment->value,
10696                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10697       gdk_window_move (tree_view->priv->header_window,
10698                        - tree_view->priv->hadjustment->value,
10699                        0);
10700       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10701       if (dy)
10702         {
10703           update_prelight (tree_view,
10704                            tree_view->priv->event_last_x,
10705                            tree_view->priv->event_last_y - dy);
10706
10707           if (tree_view->priv->edited_column &&
10708               GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10709             {
10710               GList *list;
10711               GtkWidget *widget;
10712               GtkTreeViewChild *child = NULL;
10713
10714               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10715               adjust_allocation (widget, 0, dy);
10716
10717               for (list = tree_view->priv->children; list; list = list->next)
10718                 {
10719                   child = (GtkTreeViewChild *)list->data;
10720                   if (child->widget == widget)
10721                     {
10722                       child->y += dy;
10723                       break;
10724                     }
10725                 }
10726             }
10727         }
10728       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10729
10730       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10731         {
10732           /* update our dy and top_row */
10733           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10734
10735           if (!tree_view->priv->in_top_row_to_dy)
10736             gtk_tree_view_dy_to_top_row (tree_view);
10737         }
10738
10739       gdk_window_process_updates (tree_view->priv->header_window, TRUE);
10740       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
10741     }
10742 }
10743
10744 \f
10745
10746 /* Public methods
10747  */
10748
10749 /**
10750  * gtk_tree_view_new:
10751  *
10752  * Creates a new #GtkTreeView widget.
10753  *
10754  * Return value: A newly created #GtkTreeView widget.
10755  **/
10756 GtkWidget *
10757 gtk_tree_view_new (void)
10758 {
10759   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10760 }
10761
10762 /**
10763  * gtk_tree_view_new_with_model:
10764  * @model: the model.
10765  *
10766  * Creates a new #GtkTreeView widget with the model initialized to @model.
10767  *
10768  * Return value: A newly created #GtkTreeView widget.
10769  **/
10770 GtkWidget *
10771 gtk_tree_view_new_with_model (GtkTreeModel *model)
10772 {
10773   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10774 }
10775
10776 /* Public Accessors
10777  */
10778
10779 /**
10780  * gtk_tree_view_get_model:
10781  * @tree_view: a #GtkTreeView
10782  *
10783  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10784  * model is unset.
10785  *
10786  * Return value: (transfer none): A #GtkTreeModel, or %NULL if none is currently being used.
10787  **/
10788 GtkTreeModel *
10789 gtk_tree_view_get_model (GtkTreeView *tree_view)
10790 {
10791   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10792
10793   return tree_view->priv->model;
10794 }
10795
10796 /**
10797  * gtk_tree_view_set_model:
10798  * @tree_view: A #GtkTreeNode.
10799  * @model: (allow-none): The model.
10800  *
10801  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10802  * set, it will remove it before setting the new model.  If @model is %NULL,
10803  * then it will unset the old model.
10804  **/
10805 void
10806 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10807                          GtkTreeModel *model)
10808 {
10809   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10810   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10811
10812   if (model == tree_view->priv->model)
10813     return;
10814
10815   if (tree_view->priv->scroll_to_path)
10816     {
10817       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10818       tree_view->priv->scroll_to_path = NULL;
10819     }
10820
10821   if (tree_view->priv->model)
10822     {
10823       GList *tmplist = tree_view->priv->columns;
10824
10825       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10826       gtk_tree_view_stop_editing (tree_view, TRUE);
10827
10828       remove_expand_collapse_timeout (tree_view);
10829
10830       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10831                                             gtk_tree_view_row_changed,
10832                                             tree_view);
10833       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10834                                             gtk_tree_view_row_inserted,
10835                                             tree_view);
10836       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10837                                             gtk_tree_view_row_has_child_toggled,
10838                                             tree_view);
10839       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10840                                             gtk_tree_view_row_deleted,
10841                                             tree_view);
10842       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10843                                             gtk_tree_view_rows_reordered,
10844                                             tree_view);
10845
10846       for (; tmplist; tmplist = tmplist->next)
10847         _gtk_tree_view_column_unset_model (tmplist->data,
10848                                            tree_view->priv->model);
10849
10850       if (tree_view->priv->tree)
10851         gtk_tree_view_free_rbtree (tree_view);
10852
10853       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10854       tree_view->priv->drag_dest_row = NULL;
10855       gtk_tree_row_reference_free (tree_view->priv->cursor);
10856       tree_view->priv->cursor = NULL;
10857       gtk_tree_row_reference_free (tree_view->priv->anchor);
10858       tree_view->priv->anchor = NULL;
10859       gtk_tree_row_reference_free (tree_view->priv->top_row);
10860       tree_view->priv->top_row = NULL;
10861       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10862       tree_view->priv->scroll_to_path = NULL;
10863
10864       tree_view->priv->scroll_to_column = NULL;
10865
10866       g_object_unref (tree_view->priv->model);
10867
10868       tree_view->priv->search_column = -1;
10869       tree_view->priv->fixed_height_check = 0;
10870       tree_view->priv->fixed_height = -1;
10871       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10872       tree_view->priv->last_button_x = -1;
10873       tree_view->priv->last_button_y = -1;
10874     }
10875
10876   tree_view->priv->model = model;
10877
10878   if (tree_view->priv->model)
10879     {
10880       gint i;
10881       GtkTreePath *path;
10882       GtkTreeIter iter;
10883       GtkTreeModelFlags flags;
10884
10885       if (tree_view->priv->search_column == -1)
10886         {
10887           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10888             {
10889               GType type = gtk_tree_model_get_column_type (model, i);
10890
10891               if (g_value_type_transformable (type, G_TYPE_STRING))
10892                 {
10893                   tree_view->priv->search_column = i;
10894                   break;
10895                 }
10896             }
10897         }
10898
10899       g_object_ref (tree_view->priv->model);
10900       g_signal_connect (tree_view->priv->model,
10901                         "row-changed",
10902                         G_CALLBACK (gtk_tree_view_row_changed),
10903                         tree_view);
10904       g_signal_connect (tree_view->priv->model,
10905                         "row-inserted",
10906                         G_CALLBACK (gtk_tree_view_row_inserted),
10907                         tree_view);
10908       g_signal_connect (tree_view->priv->model,
10909                         "row-has-child-toggled",
10910                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10911                         tree_view);
10912       g_signal_connect (tree_view->priv->model,
10913                         "row-deleted",
10914                         G_CALLBACK (gtk_tree_view_row_deleted),
10915                         tree_view);
10916       g_signal_connect (tree_view->priv->model,
10917                         "rows-reordered",
10918                         G_CALLBACK (gtk_tree_view_rows_reordered),
10919                         tree_view);
10920
10921       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10922       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10923         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10924       else
10925         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10926
10927       path = gtk_tree_path_new_first ();
10928       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10929         {
10930           tree_view->priv->tree = _gtk_rbtree_new ();
10931           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10932         }
10933       gtk_tree_path_free (path);
10934
10935       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10936       install_presize_handler (tree_view);
10937     }
10938
10939   g_object_notify (G_OBJECT (tree_view), "model");
10940
10941   if (tree_view->priv->selection)
10942   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10943
10944   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
10945     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10946 }
10947
10948 /**
10949  * gtk_tree_view_get_selection:
10950  * @tree_view: A #GtkTreeView.
10951  *
10952  * Gets the #GtkTreeSelection associated with @tree_view.
10953  *
10954  * Return value: (transfer none): A #GtkTreeSelection object.
10955  **/
10956 GtkTreeSelection *
10957 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10958 {
10959   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10960
10961   return tree_view->priv->selection;
10962 }
10963
10964 /**
10965  * gtk_tree_view_get_hadjustment:
10966  * @tree_view: A #GtkTreeView
10967  *
10968  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10969  *
10970  * Return value: (transfer none): A #GtkAdjustment object, or %NULL
10971  *     if none is currently being used.
10972  **/
10973 GtkAdjustment *
10974 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10975 {
10976   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10977
10978   if (tree_view->priv->hadjustment == NULL)
10979     gtk_tree_view_set_hadjustment (tree_view, NULL);
10980
10981   return tree_view->priv->hadjustment;
10982 }
10983
10984 /**
10985  * gtk_tree_view_set_hadjustment:
10986  * @tree_view: A #GtkTreeView
10987  * @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
10988  *
10989  * Sets the #GtkAdjustment for the current horizontal aspect.
10990  **/
10991 void
10992 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10993                                GtkAdjustment *adjustment)
10994 {
10995   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10996
10997   gtk_tree_view_set_adjustments (tree_view,
10998                                  adjustment,
10999                                  tree_view->priv->vadjustment);
11000
11001   g_object_notify (G_OBJECT (tree_view), "hadjustment");
11002 }
11003
11004 /**
11005  * gtk_tree_view_get_vadjustment:
11006  * @tree_view: A #GtkTreeView
11007  *
11008  * Gets the #GtkAdjustment currently being used for the vertical aspect.
11009  *
11010  * Return value: (transfer none): A #GtkAdjustment object, or %NULL
11011  *     if none is currently being used.
11012  **/
11013 GtkAdjustment *
11014 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
11015 {
11016   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11017
11018   if (tree_view->priv->vadjustment == NULL)
11019     gtk_tree_view_set_vadjustment (tree_view, NULL);
11020
11021   return tree_view->priv->vadjustment;
11022 }
11023
11024 /**
11025  * gtk_tree_view_set_vadjustment:
11026  * @tree_view: A #GtkTreeView
11027  * @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
11028  *
11029  * Sets the #GtkAdjustment for the current vertical aspect.
11030  **/
11031 void
11032 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
11033                                GtkAdjustment *adjustment)
11034 {
11035   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11036
11037   gtk_tree_view_set_adjustments (tree_view,
11038                                  tree_view->priv->hadjustment,
11039                                  adjustment);
11040
11041   g_object_notify (G_OBJECT (tree_view), "vadjustment");
11042 }
11043
11044 /* Column and header operations */
11045
11046 /**
11047  * gtk_tree_view_get_headers_visible:
11048  * @tree_view: A #GtkTreeView.
11049  *
11050  * Returns %TRUE if the headers on the @tree_view are visible.
11051  *
11052  * Return value: Whether the headers are visible or not.
11053  **/
11054 gboolean
11055 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
11056 {
11057   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11058
11059   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
11060 }
11061
11062 /**
11063  * gtk_tree_view_set_headers_visible:
11064  * @tree_view: A #GtkTreeView.
11065  * @headers_visible: %TRUE if the headers are visible
11066  *
11067  * Sets the visibility state of the headers.
11068  **/
11069 void
11070 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
11071                                    gboolean     headers_visible)
11072 {
11073   gint x, y;
11074   GList *list;
11075   GtkTreeViewColumn *column;
11076   GtkAllocation allocation;
11077
11078   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11079
11080   headers_visible = !! headers_visible;
11081
11082   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
11083     return;
11084
11085   if (headers_visible)
11086     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
11087   else
11088     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
11089
11090   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
11091     {
11092       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
11093       if (headers_visible)
11094         {
11095           gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
11096           gdk_window_move_resize (tree_view->priv->bin_window,
11097                                   x, y  + TREE_VIEW_HEADER_HEIGHT (tree_view),
11098                                   tree_view->priv->width, allocation.height -  + TREE_VIEW_HEADER_HEIGHT (tree_view));
11099
11100           if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
11101             gtk_tree_view_map_buttons (tree_view);
11102         }
11103       else
11104         {
11105           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
11106
11107           for (list = tree_view->priv->columns; list; list = list->next)
11108             {
11109               column = list->data;
11110               gtk_widget_unmap (column->button);
11111             }
11112           gdk_window_hide (tree_view->priv->header_window);
11113         }
11114     }
11115
11116   gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
11117   tree_view->priv->vadjustment->page_size = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
11118   tree_view->priv->vadjustment->page_increment = (allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
11119   tree_view->priv->vadjustment->lower = 0;
11120   tree_view->priv->vadjustment->upper = tree_view->priv->height;
11121   gtk_adjustment_changed (tree_view->priv->vadjustment);
11122
11123   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11124
11125   g_object_notify (G_OBJECT (tree_view), "headers-visible");
11126 }
11127
11128 /**
11129  * gtk_tree_view_columns_autosize:
11130  * @tree_view: A #GtkTreeView.
11131  *
11132  * Resizes all columns to their optimal width. Only works after the
11133  * treeview has been realized.
11134  **/
11135 void
11136 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11137 {
11138   gboolean dirty = FALSE;
11139   GList *list;
11140   GtkTreeViewColumn *column;
11141
11142   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11143
11144   for (list = tree_view->priv->columns; list; list = list->next)
11145     {
11146       column = list->data;
11147       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11148         continue;
11149       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11150       dirty = TRUE;
11151     }
11152
11153   if (dirty)
11154     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11155 }
11156
11157 /**
11158  * gtk_tree_view_set_headers_clickable:
11159  * @tree_view: A #GtkTreeView.
11160  * @setting: %TRUE if the columns are clickable.
11161  *
11162  * Allow the column title buttons to be clicked.
11163  **/
11164 void
11165 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11166                                      gboolean   setting)
11167 {
11168   GList *list;
11169
11170   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11171
11172   for (list = tree_view->priv->columns; list; list = list->next)
11173     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11174
11175   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11176 }
11177
11178
11179 /**
11180  * gtk_tree_view_get_headers_clickable:
11181  * @tree_view: A #GtkTreeView.
11182  *
11183  * Returns whether all header columns are clickable.
11184  *
11185  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11186  *
11187  * Since: 2.10
11188  **/
11189 gboolean
11190 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11191 {
11192   GList *list;
11193
11194   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11195
11196   for (list = tree_view->priv->columns; list; list = list->next)
11197     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11198       return FALSE;
11199
11200   return TRUE;
11201 }
11202
11203 /**
11204  * gtk_tree_view_set_rules_hint
11205  * @tree_view: a #GtkTreeView
11206  * @setting: %TRUE if the tree requires reading across rows
11207  *
11208  * This function tells GTK+ that the user interface for your
11209  * application requires users to read across tree rows and associate
11210  * cells with one another. By default, GTK+ will then render the tree
11211  * with alternating row colors. Do <emphasis>not</emphasis> use it
11212  * just because you prefer the appearance of the ruled tree; that's a
11213  * question for the theme. Some themes will draw tree rows in
11214  * alternating colors even when rules are turned off, and users who
11215  * prefer that appearance all the time can choose those themes. You
11216  * should call this function only as a <emphasis>semantic</emphasis>
11217  * hint to the theme engine that your tree makes alternating colors
11218  * useful from a functional standpoint (since it has lots of columns,
11219  * generally).
11220  *
11221  **/
11222 void
11223 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11224                               gboolean      setting)
11225 {
11226   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11227
11228   setting = setting != FALSE;
11229
11230   if (tree_view->priv->has_rules != setting)
11231     {
11232       tree_view->priv->has_rules = setting;
11233       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11234     }
11235
11236   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11237 }
11238
11239 /**
11240  * gtk_tree_view_get_rules_hint
11241  * @tree_view: a #GtkTreeView
11242  *
11243  * Gets the setting set by gtk_tree_view_set_rules_hint().
11244  *
11245  * Return value: %TRUE if rules are useful for the user of this tree
11246  **/
11247 gboolean
11248 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11249 {
11250   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11251
11252   return tree_view->priv->has_rules;
11253 }
11254
11255 /* Public Column functions
11256  */
11257
11258 /**
11259  * gtk_tree_view_append_column:
11260  * @tree_view: A #GtkTreeView.
11261  * @column: The #GtkTreeViewColumn to add.
11262  *
11263  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11264  * mode enabled, then @column must have its "sizing" property set to be
11265  * GTK_TREE_VIEW_COLUMN_FIXED.
11266  *
11267  * Return value: The number of columns in @tree_view after appending.
11268  **/
11269 gint
11270 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11271                              GtkTreeViewColumn *column)
11272 {
11273   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11274   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11275   g_return_val_if_fail (column->tree_view == NULL, -1);
11276
11277   return gtk_tree_view_insert_column (tree_view, column, -1);
11278 }
11279
11280
11281 /**
11282  * gtk_tree_view_remove_column:
11283  * @tree_view: A #GtkTreeView.
11284  * @column: The #GtkTreeViewColumn to remove.
11285  *
11286  * Removes @column from @tree_view.
11287  *
11288  * Return value: The number of columns in @tree_view after removing.
11289  **/
11290 gint
11291 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11292                              GtkTreeViewColumn *column)
11293 {
11294   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11295   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11296   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11297
11298   if (tree_view->priv->focus_column == column)
11299     tree_view->priv->focus_column = NULL;
11300
11301   if (tree_view->priv->edited_column == column)
11302     {
11303       gtk_tree_view_stop_editing (tree_view, TRUE);
11304
11305       /* no need to, but just to be sure ... */
11306       tree_view->priv->edited_column = NULL;
11307     }
11308
11309   if (tree_view->priv->expander_column == column)
11310     tree_view->priv->expander_column = NULL;
11311
11312   g_signal_handlers_disconnect_by_func (column,
11313                                         G_CALLBACK (column_sizing_notify),
11314                                         tree_view);
11315
11316   _gtk_tree_view_column_unset_tree_view (column);
11317
11318   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11319   tree_view->priv->n_columns--;
11320
11321   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
11322     {
11323       GList *list;
11324
11325       _gtk_tree_view_column_unrealize_button (column);
11326       for (list = tree_view->priv->columns; list; list = list->next)
11327         {
11328           GtkTreeViewColumn *tmp_column;
11329
11330           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11331           if (tmp_column->visible)
11332             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11333         }
11334
11335       if (tree_view->priv->n_columns == 0 &&
11336           gtk_tree_view_get_headers_visible (tree_view))
11337         gdk_window_hide (tree_view->priv->header_window);
11338
11339       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11340     }
11341
11342   g_object_unref (column);
11343   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11344
11345   return tree_view->priv->n_columns;
11346 }
11347
11348 /**
11349  * gtk_tree_view_insert_column:
11350  * @tree_view: A #GtkTreeView.
11351  * @column: The #GtkTreeViewColumn to be inserted.
11352  * @position: The position to insert @column in.
11353  *
11354  * This inserts the @column into the @tree_view at @position.  If @position is
11355  * -1, then the column is inserted at the end. If @tree_view has
11356  * "fixed_height" mode enabled, then @column must have its "sizing" property
11357  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11358  *
11359  * Return value: The number of columns in @tree_view after insertion.
11360  **/
11361 gint
11362 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11363                              GtkTreeViewColumn *column,
11364                              gint               position)
11365 {
11366   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11367   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11368   g_return_val_if_fail (column->tree_view == NULL, -1);
11369
11370   if (tree_view->priv->fixed_height_mode)
11371     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11372                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11373
11374   g_object_ref_sink (column);
11375
11376   if (tree_view->priv->n_columns == 0 &&
11377       gtk_widget_get_realized (GTK_WIDGET (tree_view)) &&
11378       gtk_tree_view_get_headers_visible (tree_view))
11379     {
11380       gdk_window_show (tree_view->priv->header_window);
11381     }
11382
11383   g_signal_connect (column, "notify::sizing",
11384                     G_CALLBACK (column_sizing_notify), tree_view);
11385
11386   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11387                                             column, position);
11388   tree_view->priv->n_columns++;
11389
11390   _gtk_tree_view_column_set_tree_view (column, tree_view);
11391
11392   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
11393     {
11394       GList *list;
11395
11396       _gtk_tree_view_column_realize_button (column);
11397
11398       for (list = tree_view->priv->columns; list; list = list->next)
11399         {
11400           column = GTK_TREE_VIEW_COLUMN (list->data);
11401           if (column->visible)
11402             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11403         }
11404       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11405     }
11406
11407   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11408
11409   return tree_view->priv->n_columns;
11410 }
11411
11412 /**
11413  * gtk_tree_view_insert_column_with_attributes:
11414  * @tree_view: A #GtkTreeView
11415  * @position: The position to insert the new column in.
11416  * @title: The title to set the header to.
11417  * @cell: The #GtkCellRenderer.
11418  * @Varargs: A %NULL-terminated list of attributes.
11419  *
11420  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11421  * @position.  If @position is -1, then the newly created column is inserted at
11422  * the end.  The column is initialized with the attributes given. If @tree_view
11423  * has "fixed_height" mode enabled, then the new column will have its sizing
11424  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11425  *
11426  * Return value: The number of columns in @tree_view after insertion.
11427  **/
11428 gint
11429 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11430                                              gint             position,
11431                                              const gchar     *title,
11432                                              GtkCellRenderer *cell,
11433                                              ...)
11434 {
11435   GtkTreeViewColumn *column;
11436   gchar *attribute;
11437   va_list args;
11438   gint column_id;
11439
11440   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11441
11442   column = gtk_tree_view_column_new ();
11443   if (tree_view->priv->fixed_height_mode)
11444     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11445
11446   gtk_tree_view_column_set_title (column, title);
11447   gtk_tree_view_column_pack_start (column, cell, TRUE);
11448
11449   va_start (args, cell);
11450
11451   attribute = va_arg (args, gchar *);
11452
11453   while (attribute != NULL)
11454     {
11455       column_id = va_arg (args, gint);
11456       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11457       attribute = va_arg (args, gchar *);
11458     }
11459
11460   va_end (args);
11461
11462   gtk_tree_view_insert_column (tree_view, column, position);
11463
11464   return tree_view->priv->n_columns;
11465 }
11466
11467 /**
11468  * gtk_tree_view_insert_column_with_data_func:
11469  * @tree_view: a #GtkTreeView
11470  * @position: Position to insert, -1 for append
11471  * @title: column title
11472  * @cell: cell renderer for column
11473  * @func: function to set attributes of cell renderer
11474  * @data: data for @func
11475  * @dnotify: destroy notifier for @data
11476  *
11477  * Convenience function that inserts a new column into the #GtkTreeView
11478  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11479  * attributes (normally using data from the model). See also
11480  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11481  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11482  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11483  *
11484  * Return value: number of columns in the tree view post-insert
11485  **/
11486 gint
11487 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11488                                              gint                       position,
11489                                              const gchar               *title,
11490                                              GtkCellRenderer           *cell,
11491                                              GtkTreeCellDataFunc        func,
11492                                              gpointer                   data,
11493                                              GDestroyNotify             dnotify)
11494 {
11495   GtkTreeViewColumn *column;
11496
11497   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11498
11499   column = gtk_tree_view_column_new ();
11500   if (tree_view->priv->fixed_height_mode)
11501     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11502
11503   gtk_tree_view_column_set_title (column, title);
11504   gtk_tree_view_column_pack_start (column, cell, TRUE);
11505   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11506
11507   gtk_tree_view_insert_column (tree_view, column, position);
11508
11509   return tree_view->priv->n_columns;
11510 }
11511
11512 /**
11513  * gtk_tree_view_get_column:
11514  * @tree_view: A #GtkTreeView.
11515  * @n: The position of the column, counting from 0.
11516  *
11517  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11518  *
11519  * Return value: (transfer none): The #GtkTreeViewColumn, or %NULL if the
11520  *     position is outside the range of columns.
11521  **/
11522 GtkTreeViewColumn *
11523 gtk_tree_view_get_column (GtkTreeView *tree_view,
11524                           gint         n)
11525 {
11526   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11527
11528   if (n < 0 || n >= tree_view->priv->n_columns)
11529     return NULL;
11530
11531   if (tree_view->priv->columns == NULL)
11532     return NULL;
11533
11534   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11535 }
11536
11537 /**
11538  * gtk_tree_view_get_columns:
11539  * @tree_view: A #GtkTreeView
11540  *
11541  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11542  * The returned list must be freed with g_list_free ().
11543  *
11544  * Return value: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
11545  **/
11546 GList *
11547 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11548 {
11549   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11550
11551   return g_list_copy (tree_view->priv->columns);
11552 }
11553
11554 /**
11555  * gtk_tree_view_move_column_after:
11556  * @tree_view: A #GtkTreeView
11557  * @column: The #GtkTreeViewColumn to be moved.
11558  * @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
11559  *
11560  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11561  * @column is placed in the first position.
11562  **/
11563 void
11564 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11565                                  GtkTreeViewColumn *column,
11566                                  GtkTreeViewColumn *base_column)
11567 {
11568   GList *column_list_el, *base_el = NULL;
11569
11570   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11571
11572   column_list_el = g_list_find (tree_view->priv->columns, column);
11573   g_return_if_fail (column_list_el != NULL);
11574
11575   if (base_column)
11576     {
11577       base_el = g_list_find (tree_view->priv->columns, base_column);
11578       g_return_if_fail (base_el != NULL);
11579     }
11580
11581   if (column_list_el->prev == base_el)
11582     return;
11583
11584   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11585   if (base_el == NULL)
11586     {
11587       column_list_el->prev = NULL;
11588       column_list_el->next = tree_view->priv->columns;
11589       if (column_list_el->next)
11590         column_list_el->next->prev = column_list_el;
11591       tree_view->priv->columns = column_list_el;
11592     }
11593   else
11594     {
11595       column_list_el->prev = base_el;
11596       column_list_el->next = base_el->next;
11597       if (column_list_el->next)
11598         column_list_el->next->prev = column_list_el;
11599       base_el->next = column_list_el;
11600     }
11601
11602   if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
11603     {
11604       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11605       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11606     }
11607
11608   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11609 }
11610
11611 /**
11612  * gtk_tree_view_set_expander_column:
11613  * @tree_view: A #GtkTreeView
11614  * @column: %NULL, or the column to draw the expander arrow at.
11615  *
11616  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11617  * If @column is %NULL, then the expander arrow is always at the first
11618  * visible column.
11619  *
11620  * If you do not want expander arrow to appear in your tree, set the
11621  * expander column to a hidden column.
11622  **/
11623 void
11624 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11625                                    GtkTreeViewColumn *column)
11626 {
11627   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11628   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11629
11630   if (tree_view->priv->expander_column != column)
11631     {
11632       GList *list;
11633
11634       if (column)
11635         {
11636           /* Confirm that column is in tree_view */
11637           for (list = tree_view->priv->columns; list; list = list->next)
11638             if (list->data == column)
11639               break;
11640           g_return_if_fail (list != NULL);
11641         }
11642
11643       tree_view->priv->expander_column = column;
11644       g_object_notify (G_OBJECT (tree_view), "expander-column");
11645     }
11646 }
11647
11648 /**
11649  * gtk_tree_view_get_expander_column:
11650  * @tree_view: A #GtkTreeView
11651  *
11652  * Returns the column that is the current expander column.
11653  * This column has the expander arrow drawn next to it.
11654  *
11655  * Return value: (transfer none): The expander column.
11656  **/
11657 GtkTreeViewColumn *
11658 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11659 {
11660   GList *list;
11661
11662   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11663
11664   for (list = tree_view->priv->columns; list; list = list->next)
11665     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11666       return (GtkTreeViewColumn *) list->data;
11667   return NULL;
11668 }
11669
11670
11671 /**
11672  * gtk_tree_view_set_column_drag_function:
11673  * @tree_view: A #GtkTreeView.
11674  * @func: (allow-none): A function to determine which columns are reorderable, or %NULL.
11675  * @user_data: (allow-none): User data to be passed to @func, or %NULL
11676  * @destroy: (allow-none): Destroy notifier for @user_data, or %NULL
11677  *
11678  * Sets a user function for determining where a column may be dropped when
11679  * dragged.  This function is called on every column pair in turn at the
11680  * beginning of a column drag to determine where a drop can take place.  The
11681  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11682  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11683  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11684  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11685  * @tree_view reverts to the default behavior of allowing all columns to be
11686  * dropped everywhere.
11687  **/
11688 void
11689 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11690                                         GtkTreeViewColumnDropFunc  func,
11691                                         gpointer                   user_data,
11692                                         GDestroyNotify             destroy)
11693 {
11694   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11695
11696   if (tree_view->priv->column_drop_func_data_destroy)
11697     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11698
11699   tree_view->priv->column_drop_func = func;
11700   tree_view->priv->column_drop_func_data = user_data;
11701   tree_view->priv->column_drop_func_data_destroy = destroy;
11702 }
11703
11704 /**
11705  * gtk_tree_view_scroll_to_point:
11706  * @tree_view: a #GtkTreeView
11707  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11708  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11709  *
11710  * Scrolls the tree view such that the top-left corner of the visible
11711  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11712  * in tree coordinates.  The @tree_view must be realized before
11713  * this function is called.  If it isn't, you probably want to be
11714  * using gtk_tree_view_scroll_to_cell().
11715  *
11716  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11717  **/
11718 void
11719 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11720                                gint         tree_x,
11721                                gint         tree_y)
11722 {
11723   GtkAdjustment *hadj;
11724   GtkAdjustment *vadj;
11725
11726   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11727   g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
11728
11729   hadj = tree_view->priv->hadjustment;
11730   vadj = tree_view->priv->vadjustment;
11731
11732   if (tree_x != -1)
11733     gtk_adjustment_set_value (hadj, tree_x);
11734   if (tree_y != -1)
11735     gtk_adjustment_set_value (vadj, tree_y);
11736 }
11737
11738 /**
11739  * gtk_tree_view_scroll_to_cell:
11740  * @tree_view: A #GtkTreeView.
11741  * @path: (allow-none): The path of the row to move to, or %NULL.
11742  * @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
11743  * @use_align: whether to use alignment arguments, or %FALSE.
11744  * @row_align: The vertical alignment of the row specified by @path.
11745  * @col_align: The horizontal alignment of the column specified by @column.
11746  *
11747  * Moves the alignments of @tree_view to the position specified by @column and
11748  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11749  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11750  * or @path need to be non-%NULL.  @row_align determines where the row is
11751  * placed, and @col_align determines where @column is placed.  Both are expected
11752  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11753  * right/bottom alignment, 0.5 means center.
11754  *
11755  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11756  * tree does the minimum amount of work to scroll the cell onto the screen.
11757  * This means that the cell will be scrolled to the edge closest to its current
11758  * position.  If the cell is currently visible on the screen, nothing is done.
11759  *
11760  * This function only works if the model is set, and @path is a valid row on the
11761  * model.  If the model changes before the @tree_view is realized, the centered
11762  * path will be modified to reflect this change.
11763  **/
11764 void
11765 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11766                               GtkTreePath       *path,
11767                               GtkTreeViewColumn *column,
11768                               gboolean           use_align,
11769                               gfloat             row_align,
11770                               gfloat             col_align)
11771 {
11772   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11773   g_return_if_fail (tree_view->priv->model != NULL);
11774   g_return_if_fail (tree_view->priv->tree != NULL);
11775   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11776   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11777   g_return_if_fail (path != NULL || column != NULL);
11778
11779 #if 0
11780   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11781            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11782 #endif
11783   row_align = CLAMP (row_align, 0.0, 1.0);
11784   col_align = CLAMP (col_align, 0.0, 1.0);
11785
11786
11787   /* Note: Despite the benefits that come from having one code path for the
11788    * scrolling code, we short-circuit validate_visible_area's immplementation as
11789    * it is much slower than just going to the point.
11790    */
11791   if (!gtk_widget_get_visible (GTK_WIDGET (tree_view)) ||
11792       !gtk_widget_get_realized (GTK_WIDGET (tree_view)) ||
11793       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11794       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11795     {
11796       if (tree_view->priv->scroll_to_path)
11797         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11798
11799       tree_view->priv->scroll_to_path = NULL;
11800       tree_view->priv->scroll_to_column = NULL;
11801
11802       if (path)
11803         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11804       if (column)
11805         tree_view->priv->scroll_to_column = column;
11806       tree_view->priv->scroll_to_use_align = use_align;
11807       tree_view->priv->scroll_to_row_align = row_align;
11808       tree_view->priv->scroll_to_col_align = col_align;
11809
11810       install_presize_handler (tree_view);
11811     }
11812   else
11813     {
11814       GdkRectangle cell_rect;
11815       GdkRectangle vis_rect;
11816       gint dest_x, dest_y;
11817
11818       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11819       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11820
11821       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11822
11823       dest_x = vis_rect.x;
11824       dest_y = vis_rect.y;
11825
11826       if (column)
11827         {
11828           if (use_align)
11829             {
11830               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11831             }
11832           else
11833             {
11834               if (cell_rect.x < vis_rect.x)
11835                 dest_x = cell_rect.x;
11836               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11837                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11838             }
11839         }
11840
11841       if (path)
11842         {
11843           if (use_align)
11844             {
11845               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11846               dest_y = MAX (dest_y, 0);
11847             }
11848           else
11849             {
11850               if (cell_rect.y < vis_rect.y)
11851                 dest_y = cell_rect.y;
11852               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11853                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11854             }
11855         }
11856
11857       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11858     }
11859 }
11860
11861 /**
11862  * gtk_tree_view_row_activated:
11863  * @tree_view: A #GtkTreeView
11864  * @path: The #GtkTreePath to be activated.
11865  * @column: The #GtkTreeViewColumn to be activated.
11866  *
11867  * Activates the cell determined by @path and @column.
11868  **/
11869 void
11870 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11871                              GtkTreePath       *path,
11872                              GtkTreeViewColumn *column)
11873 {
11874   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11875
11876   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11877 }
11878
11879
11880 static void
11881 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11882                                           GtkRBNode *node,
11883                                           gpointer   data)
11884 {
11885   GtkTreeView *tree_view = data;
11886
11887   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11888       node->children)
11889     {
11890       GtkTreePath *path;
11891       GtkTreeIter iter;
11892
11893       path = _gtk_tree_view_find_path (tree_view, tree, node);
11894       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11895
11896       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11897
11898       gtk_tree_path_free (path);
11899     }
11900
11901   if (node->children)
11902     _gtk_rbtree_traverse (node->children,
11903                           node->children->root,
11904                           G_PRE_ORDER,
11905                           gtk_tree_view_expand_all_emission_helper,
11906                           tree_view);
11907 }
11908
11909 /**
11910  * gtk_tree_view_expand_all:
11911  * @tree_view: A #GtkTreeView.
11912  *
11913  * Recursively expands all nodes in the @tree_view.
11914  **/
11915 void
11916 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11917 {
11918   GtkTreePath *path;
11919   GtkRBTree *tree;
11920   GtkRBNode *node;
11921
11922   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11923
11924   if (tree_view->priv->tree == NULL)
11925     return;
11926
11927   path = gtk_tree_path_new_first ();
11928   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11929
11930   while (node)
11931     {
11932       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11933       node = _gtk_rbtree_next (tree, node);
11934       gtk_tree_path_next (path);
11935   }
11936
11937   gtk_tree_path_free (path);
11938 }
11939
11940 /* Timeout to animate the expander during expands and collapses */
11941 static gboolean
11942 expand_collapse_timeout (gpointer data)
11943 {
11944   return do_expand_collapse (data);
11945 }
11946
11947 static void
11948 add_expand_collapse_timeout (GtkTreeView *tree_view,
11949                              GtkRBTree   *tree,
11950                              GtkRBNode   *node,
11951                              gboolean     expand)
11952 {
11953   if (tree_view->priv->expand_collapse_timeout != 0)
11954     return;
11955
11956   tree_view->priv->expand_collapse_timeout =
11957       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11958   tree_view->priv->expanded_collapsed_tree = tree;
11959   tree_view->priv->expanded_collapsed_node = node;
11960
11961   if (expand)
11962     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11963   else
11964     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11965 }
11966
11967 static void
11968 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11969 {
11970   if (tree_view->priv->expand_collapse_timeout)
11971     {
11972       g_source_remove (tree_view->priv->expand_collapse_timeout);
11973       tree_view->priv->expand_collapse_timeout = 0;
11974     }
11975
11976   if (tree_view->priv->expanded_collapsed_node != NULL)
11977     {
11978       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11979       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11980
11981       tree_view->priv->expanded_collapsed_node = NULL;
11982     }
11983 }
11984
11985 static void
11986 cancel_arrow_animation (GtkTreeView *tree_view)
11987 {
11988   if (tree_view->priv->expand_collapse_timeout)
11989     {
11990       while (do_expand_collapse (tree_view));
11991
11992       remove_expand_collapse_timeout (tree_view);
11993     }
11994 }
11995
11996 static gboolean
11997 do_expand_collapse (GtkTreeView *tree_view)
11998 {
11999   GtkRBNode *node;
12000   GtkRBTree *tree;
12001   gboolean expanding;
12002   gboolean redraw;
12003
12004   redraw = FALSE;
12005   expanding = TRUE;
12006
12007   node = tree_view->priv->expanded_collapsed_node;
12008   tree = tree_view->priv->expanded_collapsed_tree;
12009
12010   if (node->children == NULL)
12011     expanding = FALSE;
12012
12013   if (expanding)
12014     {
12015       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
12016         {
12017           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12018           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
12019
12020           redraw = TRUE;
12021
12022         }
12023       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
12024         {
12025           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
12026
12027           redraw = TRUE;
12028         }
12029     }
12030   else
12031     {
12032       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
12033         {
12034           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
12035           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12036
12037           redraw = TRUE;
12038         }
12039       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
12040         {
12041           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12042
12043           redraw = TRUE;
12044
12045         }
12046     }
12047
12048   if (redraw)
12049     {
12050       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
12051
12052       return TRUE;
12053     }
12054
12055   return FALSE;
12056 }
12057
12058 /**
12059  * gtk_tree_view_collapse_all:
12060  * @tree_view: A #GtkTreeView.
12061  *
12062  * Recursively collapses all visible, expanded nodes in @tree_view.
12063  **/
12064 void
12065 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
12066 {
12067   GtkRBTree *tree;
12068   GtkRBNode *node;
12069   GtkTreePath *path;
12070   gint *indices;
12071
12072   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12073
12074   if (tree_view->priv->tree == NULL)
12075     return;
12076
12077   path = gtk_tree_path_new ();
12078   gtk_tree_path_down (path);
12079   indices = gtk_tree_path_get_indices (path);
12080
12081   tree = tree_view->priv->tree;
12082   node = tree->root;
12083   while (node && node->left != tree->nil)
12084     node = node->left;
12085
12086   while (node)
12087     {
12088       if (node->children)
12089         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12090       indices[0]++;
12091       node = _gtk_rbtree_next (tree, node);
12092     }
12093
12094   gtk_tree_path_free (path);
12095 }
12096
12097 /**
12098  * gtk_tree_view_expand_to_path:
12099  * @tree_view: A #GtkTreeView.
12100  * @path: path to a row.
12101  *
12102  * Expands the row at @path. This will also expand all parent rows of
12103  * @path as necessary.
12104  *
12105  * Since: 2.2
12106  **/
12107 void
12108 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
12109                               GtkTreePath *path)
12110 {
12111   gint i, depth;
12112   gint *indices;
12113   GtkTreePath *tmp;
12114
12115   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12116   g_return_if_fail (path != NULL);
12117
12118   depth = gtk_tree_path_get_depth (path);
12119   indices = gtk_tree_path_get_indices (path);
12120
12121   tmp = gtk_tree_path_new ();
12122   g_return_if_fail (tmp != NULL);
12123
12124   for (i = 0; i < depth; i++)
12125     {
12126       gtk_tree_path_append_index (tmp, indices[i]);
12127       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
12128     }
12129
12130   gtk_tree_path_free (tmp);
12131 }
12132
12133 /* FIXME the bool return values for expand_row and collapse_row are
12134  * not analagous; they should be TRUE if the row had children and
12135  * was not already in the requested state.
12136  */
12137
12138
12139 static gboolean
12140 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
12141                                GtkTreePath *path,
12142                                GtkRBTree   *tree,
12143                                GtkRBNode   *node,
12144                                gboolean     open_all,
12145                                gboolean     animate)
12146 {
12147   GtkTreeIter iter;
12148   GtkTreeIter temp;
12149   gboolean expand;
12150
12151   if (animate)
12152     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12153                   "gtk-enable-animations", &animate,
12154                   NULL);
12155
12156   remove_auto_expand_timeout (tree_view);
12157
12158   if (node->children && !open_all)
12159     return FALSE;
12160
12161   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
12162     return FALSE;
12163
12164   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12165   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12166     return FALSE;
12167
12168
12169    if (node->children && open_all)
12170     {
12171       gboolean retval = FALSE;
12172       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12173
12174       gtk_tree_path_append_index (tmp_path, 0);
12175       tree = node->children;
12176       node = tree->root;
12177       while (node->left != tree->nil)
12178         node = node->left;
12179       /* try to expand the children */
12180       do
12181         {
12182          gboolean t;
12183          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12184                                             TRUE, animate);
12185          if (t)
12186            retval = TRUE;
12187
12188          gtk_tree_path_next (tmp_path);
12189          node = _gtk_rbtree_next (tree, node);
12190        }
12191       while (node != NULL);
12192
12193       gtk_tree_path_free (tmp_path);
12194
12195       return retval;
12196     }
12197
12198   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12199
12200   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12201     return FALSE;
12202
12203   if (expand)
12204     return FALSE;
12205
12206   node->children = _gtk_rbtree_new ();
12207   node->children->parent_tree = tree;
12208   node->children->parent_node = node;
12209
12210   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12211
12212   gtk_tree_view_build_tree (tree_view,
12213                             node->children,
12214                             &temp,
12215                             gtk_tree_path_get_depth (path) + 1,
12216                             open_all);
12217
12218   remove_expand_collapse_timeout (tree_view);
12219
12220   if (animate)
12221     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12222
12223   install_presize_handler (tree_view);
12224
12225   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12226   if (open_all && node->children)
12227     {
12228       _gtk_rbtree_traverse (node->children,
12229                             node->children->root,
12230                             G_PRE_ORDER,
12231                             gtk_tree_view_expand_all_emission_helper,
12232                             tree_view);
12233     }
12234   return TRUE;
12235 }
12236
12237
12238 /**
12239  * gtk_tree_view_expand_row:
12240  * @tree_view: a #GtkTreeView
12241  * @path: path to a row
12242  * @open_all: whether to recursively expand, or just expand immediate children
12243  *
12244  * Opens the row so its children are visible.
12245  *
12246  * Return value: %TRUE if the row existed and had children
12247  **/
12248 gboolean
12249 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12250                           GtkTreePath *path,
12251                           gboolean     open_all)
12252 {
12253   GtkRBTree *tree;
12254   GtkRBNode *node;
12255
12256   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12257   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12258   g_return_val_if_fail (path != NULL, FALSE);
12259
12260   if (_gtk_tree_view_find_node (tree_view,
12261                                 path,
12262                                 &tree,
12263                                 &node))
12264     return FALSE;
12265
12266   if (tree != NULL)
12267     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12268   else
12269     return FALSE;
12270 }
12271
12272 static gboolean
12273 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12274                                  GtkTreePath *path,
12275                                  GtkRBTree   *tree,
12276                                  GtkRBNode   *node,
12277                                  gboolean     animate)
12278 {
12279   GtkTreeIter iter;
12280   GtkTreeIter children;
12281   gboolean collapse;
12282   gint x, y;
12283   GList *list;
12284   GdkWindow *child, *parent;
12285
12286   if (animate)
12287     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12288                   "gtk-enable-animations", &animate,
12289                   NULL);
12290
12291   remove_auto_expand_timeout (tree_view);
12292
12293   if (node->children == NULL)
12294     return FALSE;
12295
12296   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12297
12298   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12299
12300   if (collapse)
12301     return FALSE;
12302
12303   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12304    * a chance to prelight the correct node below */
12305
12306   if (tree_view->priv->prelight_tree)
12307     {
12308       GtkRBTree *parent_tree;
12309       GtkRBNode *parent_node;
12310
12311       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12312       parent_node = tree_view->priv->prelight_tree->parent_node;
12313       while (parent_tree)
12314         {
12315           if (parent_tree == tree && parent_node == node)
12316             {
12317               ensure_unprelighted (tree_view);
12318               break;
12319             }
12320           parent_node = parent_tree->parent_node;
12321           parent_tree = parent_tree->parent_tree;
12322         }
12323     }
12324
12325   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12326
12327   for (list = tree_view->priv->columns; list; list = list->next)
12328     {
12329       GtkTreeViewColumn *column = list->data;
12330
12331       if (column->visible == FALSE)
12332         continue;
12333       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12334         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12335     }
12336
12337   if (tree_view->priv->destroy_count_func)
12338     {
12339       GtkTreePath *child_path;
12340       gint child_count = 0;
12341       child_path = gtk_tree_path_copy (path);
12342       gtk_tree_path_down (child_path);
12343       if (node->children)
12344         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12345       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12346       gtk_tree_path_free (child_path);
12347     }
12348
12349   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12350     {
12351       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12352
12353       if (gtk_tree_path_is_ancestor (path, cursor_path))
12354         {
12355           gtk_tree_row_reference_free (tree_view->priv->cursor);
12356           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12357                                                                       tree_view->priv->model,
12358                                                                       path);
12359         }
12360       gtk_tree_path_free (cursor_path);
12361     }
12362
12363   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12364     {
12365       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12366       if (gtk_tree_path_is_ancestor (path, anchor_path))
12367         {
12368           gtk_tree_row_reference_free (tree_view->priv->anchor);
12369           tree_view->priv->anchor = NULL;
12370         }
12371       gtk_tree_path_free (anchor_path);
12372     }
12373
12374   /* Stop a pending double click */
12375   tree_view->priv->last_button_x = -1;
12376   tree_view->priv->last_button_y = -1;
12377
12378   remove_expand_collapse_timeout (tree_view);
12379
12380   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12381     {
12382       _gtk_rbtree_remove (node->children);
12383       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12384     }
12385   else
12386     _gtk_rbtree_remove (node->children);
12387
12388   if (animate)
12389     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12390
12391   if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
12392     {
12393       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12394     }
12395
12396   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12397
12398   if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
12399     {
12400       /* now that we've collapsed all rows, we want to try to set the prelight
12401        * again. To do this, we fake a motion event and send it to ourselves. */
12402
12403       child = tree_view->priv->bin_window;
12404       parent = gdk_window_get_parent (child);
12405
12406       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12407         {
12408           GdkEventMotion event;
12409           gint child_x, child_y;
12410
12411           gdk_window_get_position (child, &child_x, &child_y);
12412
12413           event.window = tree_view->priv->bin_window;
12414           event.x = x - child_x;
12415           event.y = y - child_y;
12416
12417           /* despite the fact this isn't a real event, I'm almost positive it will
12418            * never trigger a drag event.  maybe_drag is the only function that uses
12419            * more than just event.x and event.y. */
12420           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12421         }
12422     }
12423
12424   return TRUE;
12425 }
12426
12427 /**
12428  * gtk_tree_view_collapse_row:
12429  * @tree_view: a #GtkTreeView
12430  * @path: path to a row in the @tree_view
12431  *
12432  * Collapses a row (hides its child rows, if they exist).
12433  *
12434  * Return value: %TRUE if the row was collapsed.
12435  **/
12436 gboolean
12437 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12438                             GtkTreePath *path)
12439 {
12440   GtkRBTree *tree;
12441   GtkRBNode *node;
12442
12443   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12444   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12445   g_return_val_if_fail (path != NULL, FALSE);
12446
12447   if (_gtk_tree_view_find_node (tree_view,
12448                                 path,
12449                                 &tree,
12450                                 &node))
12451     return FALSE;
12452
12453   if (tree == NULL || node->children == NULL)
12454     return FALSE;
12455
12456   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12457 }
12458
12459 static void
12460 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12461                                         GtkRBTree              *tree,
12462                                         GtkTreePath            *path,
12463                                         GtkTreeViewMappingFunc  func,
12464                                         gpointer                user_data)
12465 {
12466   GtkRBNode *node;
12467
12468   if (tree == NULL || tree->root == NULL)
12469     return;
12470
12471   node = tree->root;
12472
12473   while (node && node->left != tree->nil)
12474     node = node->left;
12475
12476   while (node)
12477     {
12478       if (node->children)
12479         {
12480           (* func) (tree_view, path, user_data);
12481           gtk_tree_path_down (path);
12482           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12483           gtk_tree_path_up (path);
12484         }
12485       gtk_tree_path_next (path);
12486       node = _gtk_rbtree_next (tree, node);
12487     }
12488 }
12489
12490 /**
12491  * gtk_tree_view_map_expanded_rows:
12492  * @tree_view: A #GtkTreeView
12493  * @func: (scope call): A function to be called
12494  * @data: User data to be passed to the function.
12495  *
12496  * Calls @func on all expanded rows.
12497  **/
12498 void
12499 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12500                                  GtkTreeViewMappingFunc  func,
12501                                  gpointer                user_data)
12502 {
12503   GtkTreePath *path;
12504
12505   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12506   g_return_if_fail (func != NULL);
12507
12508   path = gtk_tree_path_new_first ();
12509
12510   gtk_tree_view_map_expanded_rows_helper (tree_view,
12511                                           tree_view->priv->tree,
12512                                           path, func, user_data);
12513
12514   gtk_tree_path_free (path);
12515 }
12516
12517 /**
12518  * gtk_tree_view_row_expanded:
12519  * @tree_view: A #GtkTreeView.
12520  * @path: A #GtkTreePath to test expansion state.
12521  *
12522  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12523  *
12524  * Return value: %TRUE if #path is expanded.
12525  **/
12526 gboolean
12527 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12528                             GtkTreePath *path)
12529 {
12530   GtkRBTree *tree;
12531   GtkRBNode *node;
12532
12533   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12534   g_return_val_if_fail (path != NULL, FALSE);
12535
12536   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12537
12538   if (node == NULL)
12539     return FALSE;
12540
12541   return (node->children != NULL);
12542 }
12543
12544 /**
12545  * gtk_tree_view_get_reorderable:
12546  * @tree_view: a #GtkTreeView
12547  *
12548  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12549  * gtk_tree_view_set_reorderable().
12550  *
12551  * Return value: %TRUE if the tree can be reordered.
12552  **/
12553 gboolean
12554 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12555 {
12556   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12557
12558   return tree_view->priv->reorderable;
12559 }
12560
12561 /**
12562  * gtk_tree_view_set_reorderable:
12563  * @tree_view: A #GtkTreeView.
12564  * @reorderable: %TRUE, if the tree can be reordered.
12565  *
12566  * This function is a convenience function to allow you to reorder
12567  * models that support the #GtkDragSourceIface and the
12568  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12569  * these.  If @reorderable is %TRUE, then the user can reorder the
12570  * model by dragging and dropping rows. The developer can listen to
12571  * these changes by connecting to the model's row_inserted and
12572  * row_deleted signals. The reordering is implemented by setting up
12573  * the tree view as a drag source and destination. Therefore, drag and
12574  * drop can not be used in a reorderable view for any other purpose.
12575  *
12576  * This function does not give you any degree of control over the order -- any
12577  * reordering is allowed.  If more control is needed, you should probably
12578  * handle drag and drop manually.
12579  **/
12580 void
12581 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12582                                gboolean     reorderable)
12583 {
12584   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12585
12586   reorderable = reorderable != FALSE;
12587
12588   if (tree_view->priv->reorderable == reorderable)
12589     return;
12590
12591   if (reorderable)
12592     {
12593       const GtkTargetEntry row_targets[] = {
12594         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12595       };
12596
12597       gtk_tree_view_enable_model_drag_source (tree_view,
12598                                               GDK_BUTTON1_MASK,
12599                                               row_targets,
12600                                               G_N_ELEMENTS (row_targets),
12601                                               GDK_ACTION_MOVE);
12602       gtk_tree_view_enable_model_drag_dest (tree_view,
12603                                             row_targets,
12604                                             G_N_ELEMENTS (row_targets),
12605                                             GDK_ACTION_MOVE);
12606     }
12607   else
12608     {
12609       gtk_tree_view_unset_rows_drag_source (tree_view);
12610       gtk_tree_view_unset_rows_drag_dest (tree_view);
12611     }
12612
12613   tree_view->priv->reorderable = reorderable;
12614
12615   g_object_notify (G_OBJECT (tree_view), "reorderable");
12616 }
12617
12618 static void
12619 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12620                                GtkTreePath     *path,
12621                                gboolean         clear_and_select,
12622                                gboolean         clamp_node)
12623 {
12624   GtkRBTree *tree = NULL;
12625   GtkRBNode *node = NULL;
12626
12627   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12628     {
12629       GtkTreePath *cursor_path;
12630       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12631       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12632       gtk_tree_path_free (cursor_path);
12633     }
12634
12635   gtk_tree_row_reference_free (tree_view->priv->cursor);
12636   tree_view->priv->cursor = NULL;
12637
12638   /* One cannot set the cursor on a separator.   Also, if
12639    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12640    * before finding the tree and node belonging to path.  The
12641    * path maps to a non-existing path and we will silently bail out.
12642    * We unset tree and node to avoid further processing.
12643    */
12644   if (!row_is_separator (tree_view, NULL, path)
12645       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12646     {
12647       tree_view->priv->cursor =
12648           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12649                                             tree_view->priv->model,
12650                                             path);
12651     }
12652   else
12653     {
12654       tree = NULL;
12655       node = NULL;
12656     }
12657
12658   if (tree != NULL)
12659     {
12660       GtkRBTree *new_tree = NULL;
12661       GtkRBNode *new_node = NULL;
12662
12663       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12664         {
12665           GtkTreeSelectMode mode = 0;
12666
12667           if (tree_view->priv->ctrl_pressed)
12668             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12669           if (tree_view->priv->shift_pressed)
12670             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12671
12672           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12673                                                     node, tree, path, mode,
12674                                                     FALSE);
12675         }
12676
12677       /* We have to re-find tree and node here again, somebody might have
12678        * cleared the node or the whole tree in the GtkTreeSelection::changed
12679        * callback. If the nodes differ we bail out here.
12680        */
12681       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12682
12683       if (tree != new_tree || node != new_node)
12684         return;
12685
12686       if (clamp_node)
12687         {
12688           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12689           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12690         }
12691     }
12692
12693   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12694 }
12695
12696 /**
12697  * gtk_tree_view_get_cursor:
12698  * @tree_view: A #GtkTreeView
12699  * @path: (out) (allow-none): A pointer to be filled with the current cursor path, or %NULL
12700  * @focus_column: (out) (allow-none): A pointer to be filled with the current focus column, or %NULL
12701  *
12702  * Fills in @path and @focus_column with the current path and focus column.  If
12703  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12704  * currently has focus, then *@focus_column will be %NULL.
12705  *
12706  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12707  * you are done with it.
12708  **/
12709 void
12710 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12711                           GtkTreePath       **path,
12712                           GtkTreeViewColumn **focus_column)
12713 {
12714   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12715
12716   if (path)
12717     {
12718       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12719         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12720       else
12721         *path = NULL;
12722     }
12723
12724   if (focus_column)
12725     {
12726       *focus_column = tree_view->priv->focus_column;
12727     }
12728 }
12729
12730 /**
12731  * gtk_tree_view_set_cursor:
12732  * @tree_view: A #GtkTreeView
12733  * @path: A #GtkTreePath
12734  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12735  * @start_editing: %TRUE if the specified cell should start being edited.
12736  *
12737  * Sets the current keyboard focus to be at @path, and selects it.  This is
12738  * useful when you want to focus the user's attention on a particular row.  If
12739  * @focus_column is not %NULL, then focus is given to the column specified by
12740  * it. Additionally, if @focus_column is specified, and @start_editing is
12741  * %TRUE, then editing should be started in the specified cell.
12742  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12743  * in order to give keyboard focus to the widget.  Please note that editing
12744  * can only happen when the widget is realized.
12745  *
12746  * If @path is invalid for @model, the current cursor (if any) will be unset
12747  * and the function will return without failing.
12748  **/
12749 void
12750 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12751                           GtkTreePath       *path,
12752                           GtkTreeViewColumn *focus_column,
12753                           gboolean           start_editing)
12754 {
12755   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12756                                     NULL, start_editing);
12757 }
12758
12759 /**
12760  * gtk_tree_view_set_cursor_on_cell:
12761  * @tree_view: A #GtkTreeView
12762  * @path: A #GtkTreePath
12763  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12764  * @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
12765  * @start_editing: %TRUE if the specified cell should start being edited.
12766  *
12767  * Sets the current keyboard focus to be at @path, and selects it.  This is
12768  * useful when you want to focus the user's attention on a particular row.  If
12769  * @focus_column is not %NULL, then focus is given to the column specified by
12770  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12771  * contains 2 or more editable or activatable cells, then focus is given to
12772  * the cell specified by @focus_cell. Additionally, if @focus_column is
12773  * specified, and @start_editing is %TRUE, then editing should be started in
12774  * the specified cell.  This function is often followed by
12775  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12776  * widget.  Please note that editing can only happen when the widget is
12777  * realized.
12778  *
12779  * If @path is invalid for @model, the current cursor (if any) will be unset
12780  * and the function will return without failing.
12781  *
12782  * Since: 2.2
12783  **/
12784 void
12785 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12786                                   GtkTreePath       *path,
12787                                   GtkTreeViewColumn *focus_column,
12788                                   GtkCellRenderer   *focus_cell,
12789                                   gboolean           start_editing)
12790 {
12791   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12792   g_return_if_fail (path != NULL);
12793   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12794
12795   if (!tree_view->priv->model)
12796     return;
12797
12798   if (focus_cell)
12799     {
12800       g_return_if_fail (focus_column);
12801       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12802     }
12803
12804   /* cancel the current editing, if it exists */
12805   if (tree_view->priv->edited_column &&
12806       tree_view->priv->edited_column->editable_widget)
12807     gtk_tree_view_stop_editing (tree_view, TRUE);
12808
12809   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12810
12811   if (focus_column && focus_column->visible)
12812     {
12813       GList *list;
12814       gboolean column_in_tree = FALSE;
12815
12816       for (list = tree_view->priv->columns; list; list = list->next)
12817         if (list->data == focus_column)
12818           {
12819             column_in_tree = TRUE;
12820             break;
12821           }
12822       g_return_if_fail (column_in_tree);
12823       tree_view->priv->focus_column = focus_column;
12824       if (focus_cell)
12825         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12826       if (start_editing)
12827         gtk_tree_view_start_editing (tree_view, path);
12828     }
12829 }
12830
12831 /**
12832  * gtk_tree_view_get_bin_window:
12833  * @tree_view: A #GtkTreeView
12834  *
12835  * Returns the window that @tree_view renders to.
12836  * This is used primarily to compare to <literal>event->window</literal>
12837  * to confirm that the event on @tree_view is on the right window.
12838  *
12839  * Return value: (transfer none): A #GdkWindow, or %NULL when @tree_view
12840  *     hasn't been realized yet
12841  **/
12842 GdkWindow *
12843 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12844 {
12845   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12846
12847   return tree_view->priv->bin_window;
12848 }
12849
12850 /**
12851  * gtk_tree_view_get_path_at_pos:
12852  * @tree_view: A #GtkTreeView.
12853  * @x: The x position to be identified (relative to bin_window).
12854  * @y: The y position to be identified (relative to bin_window).
12855  * @path: (out) (allow-none): A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12856  * @column: (out) (allow-none): A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12857  * @cell_x: (out) (allow-none): A pointer where the X coordinate relative to the cell can be placed, or %NULL
12858  * @cell_y: (out) (allow-none): A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12859  *
12860  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12861  * (please see gtk_tree_view_get_bin_window()).
12862  * That is, @x and @y are relative to an events coordinates. @x and @y must
12863  * come from an event on the @tree_view only where <literal>event->window ==
12864  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12865  * things like popup menus. If @path is non-%NULL, then it will be filled
12866  * with the #GtkTreePath at that point.  This path should be freed with
12867  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12868  * with the column at that point.  @cell_x and @cell_y return the coordinates
12869  * relative to the cell background (i.e. the @background_area passed to
12870  * gtk_cell_renderer_render()).  This function is only meaningful if
12871  * @tree_view is realized.  Therefore this function will always return %FALSE
12872  * if @tree_view is not realized or does not have a model.
12873  *
12874  * For converting widget coordinates (eg. the ones you get from
12875  * GtkWidget::query-tooltip), please see
12876  * gtk_tree_view_convert_widget_to_bin_window_coords().
12877  *
12878  * Return value: %TRUE if a row exists at that coordinate.
12879  **/
12880 gboolean
12881 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12882                                gint                x,
12883                                gint                y,
12884                                GtkTreePath       **path,
12885                                GtkTreeViewColumn **column,
12886                                gint               *cell_x,
12887                                gint               *cell_y)
12888 {
12889   GtkRBTree *tree;
12890   GtkRBNode *node;
12891   gint y_offset;
12892
12893   g_return_val_if_fail (tree_view != NULL, FALSE);
12894
12895   if (path)
12896     *path = NULL;
12897   if (column)
12898     *column = NULL;
12899
12900   if (tree_view->priv->bin_window == NULL)
12901     return FALSE;
12902
12903   if (tree_view->priv->tree == NULL)
12904     return FALSE;
12905
12906   if (x > tree_view->priv->hadjustment->upper)
12907     return FALSE;
12908
12909   if (x < 0 || y < 0)
12910     return FALSE;
12911
12912   if (column || cell_x)
12913     {
12914       GtkTreeViewColumn *tmp_column;
12915       GtkTreeViewColumn *last_column = NULL;
12916       GList *list;
12917       gint remaining_x = x;
12918       gboolean found = FALSE;
12919       gboolean rtl;
12920
12921       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12922       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12923            list;
12924            list = (rtl ? list->prev : list->next))
12925         {
12926           tmp_column = list->data;
12927
12928           if (tmp_column->visible == FALSE)
12929             continue;
12930
12931           last_column = tmp_column;
12932           if (remaining_x <= tmp_column->width)
12933             {
12934               found = TRUE;
12935
12936               if (column)
12937                 *column = tmp_column;
12938
12939               if (cell_x)
12940                 *cell_x = remaining_x;
12941
12942               break;
12943             }
12944           remaining_x -= tmp_column->width;
12945         }
12946
12947       /* If found is FALSE and there is a last_column, then it the remainder
12948        * space is in that area
12949        */
12950       if (!found)
12951         {
12952           if (last_column)
12953             {
12954               if (column)
12955                 *column = last_column;
12956
12957               if (cell_x)
12958                 *cell_x = last_column->width + remaining_x;
12959             }
12960           else
12961             {
12962               return FALSE;
12963             }
12964         }
12965     }
12966
12967   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12968                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12969                                       &tree, &node);
12970
12971   if (tree == NULL)
12972     return FALSE;
12973
12974   if (cell_y)
12975     *cell_y = y_offset;
12976
12977   if (path)
12978     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12979
12980   return TRUE;
12981 }
12982
12983
12984 /**
12985  * gtk_tree_view_get_cell_area:
12986  * @tree_view: a #GtkTreeView
12987  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12988  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12989  * @rect: rectangle to fill with cell rect
12990  *
12991  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12992  * row specified by @path and the column specified by @column.  If @path is
12993  * %NULL, or points to a path not currently displayed, the @y and @height fields
12994  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12995  * fields will be filled with 0.  The sum of all cell rects does not cover the
12996  * entire tree; there are extra pixels in between rows, for example. The
12997  * returned rectangle is equivalent to the @cell_area passed to
12998  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12999  * realized.
13000  **/
13001 void
13002 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
13003                              GtkTreePath        *path,
13004                              GtkTreeViewColumn  *column,
13005                              GdkRectangle       *rect)
13006 {
13007   GtkAllocation allocation;
13008   GtkRBTree *tree = NULL;
13009   GtkRBNode *node = NULL;
13010   gint vertical_separator;
13011   gint horizontal_separator;
13012
13013   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13014   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
13015   g_return_if_fail (rect != NULL);
13016   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
13017   g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
13018
13019   gtk_widget_style_get (GTK_WIDGET (tree_view),
13020                         "vertical-separator", &vertical_separator,
13021                         "horizontal-separator", &horizontal_separator,
13022                         NULL);
13023
13024   rect->x = 0;
13025   rect->y = 0;
13026   rect->width = 0;
13027   rect->height = 0;
13028
13029   if (column)
13030     {
13031       gtk_widget_get_allocation (column->button, &allocation);
13032       rect->x = allocation.x + horizontal_separator/2;
13033       rect->width = allocation.width - horizontal_separator;
13034     }
13035
13036   if (path)
13037     {
13038       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
13039
13040       /* Get vertical coords */
13041       if ((!ret && tree == NULL) || ret)
13042         return;
13043
13044       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
13045       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
13046
13047       if (column &&
13048           gtk_tree_view_is_expander_column (tree_view, column))
13049         {
13050           gint depth = gtk_tree_path_get_depth (path);
13051           gboolean rtl;
13052
13053           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13054
13055           if (!rtl)
13056             rect->x += (depth - 1) * tree_view->priv->level_indentation;
13057           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
13058
13059           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
13060             {
13061               if (!rtl)
13062                 rect->x += depth * tree_view->priv->expander_size;
13063               rect->width -= depth * tree_view->priv->expander_size;
13064             }
13065
13066           rect->width = MAX (rect->width, 0);
13067         }
13068     }
13069 }
13070
13071 /**
13072  * gtk_tree_view_get_background_area:
13073  * @tree_view: a #GtkTreeView
13074  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
13075  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
13076  * @rect: rectangle to fill with cell background rect
13077  *
13078  * Fills the bounding rectangle in bin_window coordinates for the cell at the
13079  * row specified by @path and the column specified by @column.  If @path is
13080  * %NULL, or points to a node not found in the tree, the @y and @height fields of
13081  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
13082  * fields will be filled with 0.  The returned rectangle is equivalent to the
13083  * @background_area passed to gtk_cell_renderer_render().  These background
13084  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
13085  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
13086  * itself, excluding surrounding borders and the tree expander area.
13087  *
13088  **/
13089 void
13090 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
13091                                    GtkTreePath        *path,
13092                                    GtkTreeViewColumn  *column,
13093                                    GdkRectangle       *rect)
13094 {
13095   GtkRBTree *tree = NULL;
13096   GtkRBNode *node = NULL;
13097
13098   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13099   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
13100   g_return_if_fail (rect != NULL);
13101
13102   rect->x = 0;
13103   rect->y = 0;
13104   rect->width = 0;
13105   rect->height = 0;
13106
13107   if (path)
13108     {
13109       /* Get vertical coords */
13110
13111       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
13112           tree == NULL)
13113         return;
13114
13115       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
13116
13117       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13118     }
13119
13120   if (column)
13121     {
13122       gint x2 = 0;
13123
13124       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
13125       rect->width = x2 - rect->x;
13126     }
13127 }
13128
13129 /**
13130  * gtk_tree_view_get_visible_rect:
13131  * @tree_view: a #GtkTreeView
13132  * @visible_rect: rectangle to fill
13133  *
13134  * Fills @visible_rect with the currently-visible region of the
13135  * buffer, in tree coordinates. Convert to bin_window coordinates with
13136  * gtk_tree_view_convert_tree_to_bin_window_coords().
13137  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
13138  * scrollable area of the tree.
13139  **/
13140 void
13141 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
13142                                 GdkRectangle *visible_rect)
13143 {
13144   GtkAllocation allocation;
13145   GtkWidget *widget;
13146
13147   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13148
13149   widget = GTK_WIDGET (tree_view);
13150
13151   if (visible_rect)
13152     {
13153       gtk_widget_get_allocation (widget, &allocation);
13154       visible_rect->x = tree_view->priv->hadjustment->value;
13155       visible_rect->y = tree_view->priv->vadjustment->value;
13156       visible_rect->width = allocation.width;
13157       visible_rect->height = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13158     }
13159 }
13160
13161 /**
13162  * gtk_tree_view_convert_widget_to_tree_coords:
13163  * @tree_view: a #GtkTreeView
13164  * @wx: X coordinate relative to the widget
13165  * @wy: Y coordinate relative to the widget
13166  * @tx: return location for tree X coordinate
13167  * @ty: return location for tree Y coordinate
13168  *
13169  * Converts widget coordinates to coordinates for the
13170  * tree (the full scrollable area of the tree).
13171  *
13172  * Since: 2.12
13173  **/
13174 void
13175 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13176                                              gint         wx,
13177                                              gint         wy,
13178                                              gint        *tx,
13179                                              gint        *ty)
13180 {
13181   gint x, y;
13182
13183   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13184
13185   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13186                                                      wx, wy,
13187                                                      &x, &y);
13188   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13189                                                    x, y,
13190                                                    tx, ty);
13191 }
13192
13193 /**
13194  * gtk_tree_view_convert_tree_to_widget_coords:
13195  * @tree_view: a #GtkTreeView
13196  * @tx: X coordinate relative to the tree
13197  * @ty: Y coordinate relative to the tree
13198  * @wx: return location for widget X coordinate
13199  * @wy: return location for widget Y coordinate
13200  *
13201  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13202  * to widget coordinates.
13203  *
13204  * Since: 2.12
13205  **/
13206 void
13207 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13208                                              gint         tx,
13209                                              gint         ty,
13210                                              gint        *wx,
13211                                              gint        *wy)
13212 {
13213   gint x, y;
13214
13215   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13216
13217   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13218                                                    tx, ty,
13219                                                    &x, &y);
13220   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13221                                                      x, y,
13222                                                      wx, wy);
13223 }
13224
13225 /**
13226  * gtk_tree_view_convert_widget_to_bin_window_coords:
13227  * @tree_view: a #GtkTreeView
13228  * @wx: X coordinate relative to the widget
13229  * @wy: Y coordinate relative to the widget
13230  * @bx: return location for bin_window X coordinate
13231  * @by: return location for bin_window Y coordinate
13232  *
13233  * Converts widget coordinates to coordinates for the bin_window
13234  * (see gtk_tree_view_get_bin_window()).
13235  *
13236  * Since: 2.12
13237  **/
13238 void
13239 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13240                                                    gint         wx,
13241                                                    gint         wy,
13242                                                    gint        *bx,
13243                                                    gint        *by)
13244 {
13245   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13246
13247   if (bx)
13248     *bx = wx + tree_view->priv->hadjustment->value;
13249   if (by)
13250     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13251 }
13252
13253 /**
13254  * gtk_tree_view_convert_bin_window_to_widget_coords:
13255  * @tree_view: a #GtkTreeView
13256  * @bx: bin_window X coordinate
13257  * @by: bin_window Y coordinate
13258  * @wx: return location for widget X coordinate
13259  * @wy: return location for widget Y coordinate
13260  *
13261  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13262  * to widget relative coordinates.
13263  *
13264  * Since: 2.12
13265  **/
13266 void
13267 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13268                                                    gint         bx,
13269                                                    gint         by,
13270                                                    gint        *wx,
13271                                                    gint        *wy)
13272 {
13273   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13274
13275   if (wx)
13276     *wx = bx - tree_view->priv->hadjustment->value;
13277   if (wy)
13278     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13279 }
13280
13281 /**
13282  * gtk_tree_view_convert_tree_to_bin_window_coords:
13283  * @tree_view: a #GtkTreeView
13284  * @tx: tree X coordinate
13285  * @ty: tree Y coordinate
13286  * @bx: return location for X coordinate relative to bin_window
13287  * @by: return location for Y coordinate relative to bin_window
13288  *
13289  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13290  * to bin_window coordinates.
13291  *
13292  * Since: 2.12
13293  **/
13294 void
13295 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13296                                                  gint         tx,
13297                                                  gint         ty,
13298                                                  gint        *bx,
13299                                                  gint        *by)
13300 {
13301   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13302
13303   if (bx)
13304     *bx = tx;
13305   if (by)
13306     *by = ty - tree_view->priv->dy;
13307 }
13308
13309 /**
13310  * gtk_tree_view_convert_bin_window_to_tree_coords:
13311  * @tree_view: a #GtkTreeView
13312  * @bx: X coordinate relative to bin_window
13313  * @by: Y coordinate relative to bin_window
13314  * @tx: return location for tree X coordinate
13315  * @ty: return location for tree Y coordinate
13316  *
13317  * Converts bin_window coordinates to coordinates for the
13318  * tree (the full scrollable area of the tree).
13319  *
13320  * Since: 2.12
13321  **/
13322 void
13323 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13324                                                  gint         bx,
13325                                                  gint         by,
13326                                                  gint        *tx,
13327                                                  gint        *ty)
13328 {
13329   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13330
13331   if (tx)
13332     *tx = bx;
13333   if (ty)
13334     *ty = by + tree_view->priv->dy;
13335 }
13336
13337
13338
13339 /**
13340  * gtk_tree_view_get_visible_range:
13341  * @tree_view: A #GtkTreeView
13342  * @start_path: (allow-none): Return location for start of region, or %NULL.
13343  * @end_path: (allow-none): Return location for end of region, or %NULL.
13344  *
13345  * Sets @start_path and @end_path to be the first and last visible path.
13346  * Note that there may be invisible paths in between.
13347  *
13348  * The paths should be freed with gtk_tree_path_free() after use.
13349  *
13350  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13351  *
13352  * Since: 2.8
13353  **/
13354 gboolean
13355 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13356                                  GtkTreePath **start_path,
13357                                  GtkTreePath **end_path)
13358 {
13359   GtkRBTree *tree;
13360   GtkRBNode *node;
13361   gboolean retval;
13362
13363   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13364
13365   if (!tree_view->priv->tree)
13366     return FALSE;
13367
13368   retval = TRUE;
13369
13370   if (start_path)
13371     {
13372       _gtk_rbtree_find_offset (tree_view->priv->tree,
13373                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13374                                &tree, &node);
13375       if (node)
13376         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13377       else
13378         retval = FALSE;
13379     }
13380
13381   if (end_path)
13382     {
13383       gint y;
13384
13385       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13386         y = tree_view->priv->height - 1;
13387       else
13388         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13389
13390       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13391       if (node)
13392         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13393       else
13394         retval = FALSE;
13395     }
13396
13397   return retval;
13398 }
13399
13400 static void
13401 unset_reorderable (GtkTreeView *tree_view)
13402 {
13403   if (tree_view->priv->reorderable)
13404     {
13405       tree_view->priv->reorderable = FALSE;
13406       g_object_notify (G_OBJECT (tree_view), "reorderable");
13407     }
13408 }
13409
13410 /**
13411  * gtk_tree_view_enable_model_drag_source:
13412  * @tree_view: a #GtkTreeView
13413  * @start_button_mask: Mask of allowed buttons to start drag
13414  * @targets: the table of targets that the drag will support
13415  * @n_targets: the number of items in @targets
13416  * @actions: the bitmask of possible actions for a drag from this
13417  *    widget
13418  *
13419  * Turns @tree_view into a drag source for automatic DND. Calling this
13420  * method sets #GtkTreeView:reorderable to %FALSE.
13421  **/
13422 void
13423 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13424                                         GdkModifierType           start_button_mask,
13425                                         const GtkTargetEntry     *targets,
13426                                         gint                      n_targets,
13427                                         GdkDragAction             actions)
13428 {
13429   TreeViewDragInfo *di;
13430
13431   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13432
13433   gtk_drag_source_set (GTK_WIDGET (tree_view),
13434                        0,
13435                        targets,
13436                        n_targets,
13437                        actions);
13438
13439   di = ensure_info (tree_view);
13440
13441   di->start_button_mask = start_button_mask;
13442   di->source_actions = actions;
13443   di->source_set = TRUE;
13444
13445   unset_reorderable (tree_view);
13446 }
13447
13448 /**
13449  * gtk_tree_view_enable_model_drag_dest:
13450  * @tree_view: a #GtkTreeView
13451  * @targets: the table of targets that the drag will support
13452  * @n_targets: the number of items in @targets
13453  * @actions: the bitmask of possible actions for a drag from this
13454  *    widget
13455  *
13456  * Turns @tree_view into a drop destination for automatic DND. Calling
13457  * this method sets #GtkTreeView:reorderable to %FALSE.
13458  **/
13459 void
13460 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13461                                       const GtkTargetEntry     *targets,
13462                                       gint                      n_targets,
13463                                       GdkDragAction             actions)
13464 {
13465   TreeViewDragInfo *di;
13466
13467   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13468
13469   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13470                      0,
13471                      targets,
13472                      n_targets,
13473                      actions);
13474
13475   di = ensure_info (tree_view);
13476   di->dest_set = TRUE;
13477
13478   unset_reorderable (tree_view);
13479 }
13480
13481 /**
13482  * gtk_tree_view_unset_rows_drag_source:
13483  * @tree_view: a #GtkTreeView
13484  *
13485  * Undoes the effect of
13486  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13487  * #GtkTreeView:reorderable to %FALSE.
13488  **/
13489 void
13490 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13491 {
13492   TreeViewDragInfo *di;
13493
13494   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13495
13496   di = get_info (tree_view);
13497
13498   if (di)
13499     {
13500       if (di->source_set)
13501         {
13502           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13503           di->source_set = FALSE;
13504         }
13505
13506       if (!di->dest_set && !di->source_set)
13507         remove_info (tree_view);
13508     }
13509
13510   unset_reorderable (tree_view);
13511 }
13512
13513 /**
13514  * gtk_tree_view_unset_rows_drag_dest:
13515  * @tree_view: a #GtkTreeView
13516  *
13517  * Undoes the effect of
13518  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13519  * #GtkTreeView:reorderable to %FALSE.
13520  **/
13521 void
13522 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13523 {
13524   TreeViewDragInfo *di;
13525
13526   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13527
13528   di = get_info (tree_view);
13529
13530   if (di)
13531     {
13532       if (di->dest_set)
13533         {
13534           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13535           di->dest_set = FALSE;
13536         }
13537
13538       if (!di->dest_set && !di->source_set)
13539         remove_info (tree_view);
13540     }
13541
13542   unset_reorderable (tree_view);
13543 }
13544
13545 /**
13546  * gtk_tree_view_set_drag_dest_row:
13547  * @tree_view: a #GtkTreeView
13548  * @path: (allow-none): The path of the row to highlight, or %NULL.
13549  * @pos: Specifies whether to drop before, after or into the row
13550  *
13551  * Sets the row that is highlighted for feedback.
13552  **/
13553 void
13554 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13555                                  GtkTreePath            *path,
13556                                  GtkTreeViewDropPosition pos)
13557 {
13558   GtkTreePath *current_dest;
13559
13560   /* Note; this function is exported to allow a custom DND
13561    * implementation, so it can't touch TreeViewDragInfo
13562    */
13563
13564   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13565
13566   current_dest = NULL;
13567
13568   if (tree_view->priv->drag_dest_row)
13569     {
13570       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13571       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13572     }
13573
13574   /* special case a drop on an empty model */
13575   tree_view->priv->empty_view_drop = 0;
13576
13577   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13578       && gtk_tree_path_get_depth (path) == 1
13579       && gtk_tree_path_get_indices (path)[0] == 0)
13580     {
13581       gint n_children;
13582
13583       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13584                                                    NULL);
13585
13586       if (!n_children)
13587         tree_view->priv->empty_view_drop = 1;
13588     }
13589
13590   tree_view->priv->drag_dest_pos = pos;
13591
13592   if (path)
13593     {
13594       tree_view->priv->drag_dest_row =
13595         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13596       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13597     }
13598   else
13599     tree_view->priv->drag_dest_row = NULL;
13600
13601   if (current_dest)
13602     {
13603       GtkRBTree *tree, *new_tree;
13604       GtkRBNode *node, *new_node;
13605
13606       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13607       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13608
13609       if (tree && node)
13610         {
13611           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13612           if (new_tree && new_node)
13613             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13614
13615           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13616           if (new_tree && new_node)
13617             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13618         }
13619       gtk_tree_path_free (current_dest);
13620     }
13621 }
13622
13623 /**
13624  * gtk_tree_view_get_drag_dest_row:
13625  * @tree_view: a #GtkTreeView
13626  * @path: (out) (allow-none): Return location for the path of the highlighted row, or %NULL.
13627  * @pos: (out) (allow-none): Return location for the drop position, or %NULL
13628  *
13629  * Gets information about the row that is highlighted for feedback.
13630  **/
13631 void
13632 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13633                                  GtkTreePath             **path,
13634                                  GtkTreeViewDropPosition  *pos)
13635 {
13636   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13637
13638   if (path)
13639     {
13640       if (tree_view->priv->drag_dest_row)
13641         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13642       else
13643         {
13644           if (tree_view->priv->empty_view_drop)
13645             *path = gtk_tree_path_new_from_indices (0, -1);
13646           else
13647             *path = NULL;
13648         }
13649     }
13650
13651   if (pos)
13652     *pos = tree_view->priv->drag_dest_pos;
13653 }
13654
13655 /**
13656  * gtk_tree_view_get_dest_row_at_pos:
13657  * @tree_view: a #GtkTreeView
13658  * @drag_x: the position to determine the destination row for
13659  * @drag_y: the position to determine the destination row for
13660  * @path: (out) (allow-none): Return location for the path of the highlighted row, or %NULL.
13661  * @pos: (out) (allow-none): Return location for the drop position, or %NULL
13662  *
13663  * Determines the destination row for a given position.  @drag_x and
13664  * @drag_y are expected to be in widget coordinates.  This function is only
13665  * meaningful if @tree_view is realized.  Therefore this function will always
13666  * return %FALSE if @tree_view is not realized or does not have a model.
13667  *
13668  * Return value: whether there is a row at the given position, %TRUE if this
13669  * is indeed the case.
13670  **/
13671 gboolean
13672 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13673                                    gint                     drag_x,
13674                                    gint                     drag_y,
13675                                    GtkTreePath            **path,
13676                                    GtkTreeViewDropPosition *pos)
13677 {
13678   gint cell_y;
13679   gint bin_x, bin_y;
13680   gdouble offset_into_row;
13681   gdouble third;
13682   GdkRectangle cell;
13683   GtkTreeViewColumn *column = NULL;
13684   GtkTreePath *tmp_path = NULL;
13685
13686   /* Note; this function is exported to allow a custom DND
13687    * implementation, so it can't touch TreeViewDragInfo
13688    */
13689
13690   g_return_val_if_fail (tree_view != NULL, FALSE);
13691   g_return_val_if_fail (drag_x >= 0, FALSE);
13692   g_return_val_if_fail (drag_y >= 0, FALSE);
13693
13694   if (path)
13695     *path = NULL;
13696
13697   if (tree_view->priv->bin_window == NULL)
13698     return FALSE;
13699
13700   if (tree_view->priv->tree == NULL)
13701     return FALSE;
13702
13703   /* If in the top third of a row, we drop before that row; if
13704    * in the bottom third, drop after that row; if in the middle,
13705    * and the row has children, drop into the row.
13706    */
13707   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13708                                                      &bin_x, &bin_y);
13709
13710   if (!gtk_tree_view_get_path_at_pos (tree_view,
13711                                       bin_x,
13712                                       bin_y,
13713                                       &tmp_path,
13714                                       &column,
13715                                       NULL,
13716                                       &cell_y))
13717     return FALSE;
13718
13719   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13720                                      &cell);
13721
13722   offset_into_row = cell_y;
13723
13724   if (path)
13725     *path = tmp_path;
13726   else
13727     gtk_tree_path_free (tmp_path);
13728
13729   tmp_path = NULL;
13730
13731   third = cell.height / 3.0;
13732
13733   if (pos)
13734     {
13735       if (offset_into_row < third)
13736         {
13737           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13738         }
13739       else if (offset_into_row < (cell.height / 2.0))
13740         {
13741           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13742         }
13743       else if (offset_into_row < third * 2.0)
13744         {
13745           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13746         }
13747       else
13748         {
13749           *pos = GTK_TREE_VIEW_DROP_AFTER;
13750         }
13751     }
13752
13753   return TRUE;
13754 }
13755
13756
13757
13758 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13759 /**
13760  * gtk_tree_view_create_row_drag_icon:
13761  * @tree_view: a #GtkTreeView
13762  * @path: a #GtkTreePath in @tree_view
13763  *
13764  * Creates a #cairo_surface_t representation of the row at @path.
13765  * This image is used for a drag icon.
13766  *
13767  * Return value: (transfer full): a newly-allocated surface of the drag icon.
13768  **/
13769 cairo_surface_t *
13770 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13771                                     GtkTreePath  *path)
13772 {
13773   GtkTreeIter   iter;
13774   GtkRBTree    *tree;
13775   GtkRBNode    *node;
13776   GtkStyle *style;
13777   gint cell_offset;
13778   GList *list;
13779   GdkRectangle background_area;
13780   GtkWidget *widget;
13781   gint depth;
13782   /* start drawing inside the black outline */
13783   gint x = 1, y = 1;
13784   cairo_surface_t *surface;
13785   gint bin_window_width;
13786   gboolean is_separator = FALSE;
13787   gboolean rtl;
13788   cairo_t *cr;
13789
13790   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13791   g_return_val_if_fail (path != NULL, NULL);
13792
13793   widget = GTK_WIDGET (tree_view);
13794
13795   if (!gtk_widget_get_realized (widget))
13796     return NULL;
13797
13798   depth = gtk_tree_path_get_depth (path);
13799
13800   _gtk_tree_view_find_node (tree_view,
13801                             path,
13802                             &tree,
13803                             &node);
13804
13805   if (tree == NULL)
13806     return NULL;
13807
13808   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13809                                 &iter,
13810                                 path))
13811     return NULL;
13812
13813   style = gtk_widget_get_style (widget);
13814
13815   is_separator = row_is_separator (tree_view, &iter, NULL);
13816
13817   cell_offset = x;
13818
13819   background_area.y = y;
13820   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13821
13822   gdk_drawable_get_size (tree_view->priv->bin_window,
13823                          &bin_window_width, NULL);
13824
13825   surface = gdk_window_create_similar_surface (tree_view->priv->bin_window,
13826                                                CAIRO_CONTENT_COLOR,
13827                                                bin_window_width + 2,
13828                                                background_area.height + 2);
13829
13830   cr = cairo_create (surface);
13831   gdk_cairo_set_source_color (cr, &style->base [gtk_widget_get_state (widget)]);
13832   cairo_paint (cr);
13833
13834   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13835
13836   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13837       list;
13838       list = (rtl ? list->prev : list->next))
13839     {
13840       GtkTreeViewColumn *column = list->data;
13841       GdkRectangle cell_area;
13842       gint vertical_separator;
13843
13844       if (!column->visible)
13845         continue;
13846
13847       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13848                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13849                                                node->children?TRUE:FALSE);
13850
13851       background_area.x = cell_offset;
13852       background_area.width = column->width;
13853
13854       gtk_widget_style_get (widget,
13855                             "vertical-separator", &vertical_separator,
13856                             NULL);
13857
13858       cell_area = background_area;
13859
13860       cell_area.y += vertical_separator / 2;
13861       cell_area.height -= vertical_separator;
13862
13863       if (gtk_tree_view_is_expander_column (tree_view, column))
13864         {
13865           if (!rtl)
13866             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13867           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13868
13869           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13870             {
13871               if (!rtl)
13872                 cell_area.x += depth * tree_view->priv->expander_size;
13873               cell_area.width -= depth * tree_view->priv->expander_size;
13874             }
13875         }
13876
13877       if (gtk_tree_view_column_cell_is_visible (column))
13878         {
13879           if (is_separator)
13880             gtk_cairo_paint_hline (style,
13881                                    cr,
13882                                    GTK_STATE_NORMAL,
13883                                    widget,
13884                                    NULL,
13885                                    cell_area.x,
13886                                    cell_area.x + cell_area.width,
13887                                    cell_area.y + cell_area.height / 2);
13888           else
13889             _gtk_tree_view_column_cell_render (column,
13890                                                cr,
13891                                                &background_area,
13892                                                &cell_area,
13893                                                0);
13894         }
13895       cell_offset += column->width;
13896     }
13897
13898   cairo_set_source_rgb (cr, 0, 0, 0);
13899   cairo_rectangle (cr,
13900                    0.5, 0.5,
13901                    bin_window_width + 1,
13902                    background_area.height + 1);
13903   cairo_set_line_width (cr, 1.0);
13904   cairo_stroke (cr);
13905
13906   cairo_destroy (cr);
13907
13908   cairo_surface_set_device_offset (surface, 2, 2);
13909
13910   return surface;
13911 }
13912
13913
13914 /**
13915  * gtk_tree_view_set_destroy_count_func:
13916  * @tree_view: A #GtkTreeView
13917  * @func: (allow-none): Function to be called when a view row is destroyed, or %NULL
13918  * @data: (allow-none): User data to be passed to @func, or %NULL
13919  * @destroy: (allow-none): Destroy notifier for @data, or %NULL
13920  *
13921  * This function should almost never be used.  It is meant for private use by
13922  * ATK for determining the number of visible children that are removed when the
13923  * user collapses a row, or a row is deleted.
13924  **/
13925 void
13926 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13927                                       GtkTreeDestroyCountFunc  func,
13928                                       gpointer                 data,
13929                                       GDestroyNotify           destroy)
13930 {
13931   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13932
13933   if (tree_view->priv->destroy_count_destroy)
13934     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13935
13936   tree_view->priv->destroy_count_func = func;
13937   tree_view->priv->destroy_count_data = data;
13938   tree_view->priv->destroy_count_destroy = destroy;
13939 }
13940
13941
13942 /*
13943  * Interactive search
13944  */
13945
13946 /**
13947  * gtk_tree_view_set_enable_search:
13948  * @tree_view: A #GtkTreeView
13949  * @enable_search: %TRUE, if the user can search interactively
13950  *
13951  * If @enable_search is set, then the user can type in text to search through
13952  * the tree interactively (this is sometimes called "typeahead find").
13953  *
13954  * Note that even if this is %FALSE, the user can still initiate a search
13955  * using the "start-interactive-search" key binding.
13956  */
13957 void
13958 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13959                                  gboolean     enable_search)
13960 {
13961   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13962
13963   enable_search = !!enable_search;
13964
13965   if (tree_view->priv->enable_search != enable_search)
13966     {
13967        tree_view->priv->enable_search = enable_search;
13968        g_object_notify (G_OBJECT (tree_view), "enable-search");
13969     }
13970 }
13971
13972 /**
13973  * gtk_tree_view_get_enable_search:
13974  * @tree_view: A #GtkTreeView
13975  *
13976  * Returns whether or not the tree allows to start interactive searching
13977  * by typing in text.
13978  *
13979  * Return value: whether or not to let the user search interactively
13980  */
13981 gboolean
13982 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13983 {
13984   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13985
13986   return tree_view->priv->enable_search;
13987 }
13988
13989
13990 /**
13991  * gtk_tree_view_get_search_column:
13992  * @tree_view: A #GtkTreeView
13993  *
13994  * Gets the column searched on by the interactive search code.
13995  *
13996  * Return value: the column the interactive search code searches in.
13997  */
13998 gint
13999 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
14000 {
14001   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
14002
14003   return (tree_view->priv->search_column);
14004 }
14005
14006 /**
14007  * gtk_tree_view_set_search_column:
14008  * @tree_view: A #GtkTreeView
14009  * @column: the column of the model to search in, or -1 to disable searching
14010  *
14011  * Sets @column as the column where the interactive search code should
14012  * search in for the current model.
14013  *
14014  * If the search column is set, users can use the "start-interactive-search"
14015  * key binding to bring up search popup. The enable-search property controls
14016  * whether simply typing text will also start an interactive search.
14017  *
14018  * Note that @column refers to a column of the current model. The search
14019  * column is reset to -1 when the model is changed.
14020  */
14021 void
14022 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
14023                                  gint         column)
14024 {
14025   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14026   g_return_if_fail (column >= -1);
14027
14028   if (tree_view->priv->search_column == column)
14029     return;
14030
14031   tree_view->priv->search_column = column;
14032   g_object_notify (G_OBJECT (tree_view), "search-column");
14033 }
14034
14035 /**
14036  * gtk_tree_view_get_search_equal_func:
14037  * @tree_view: A #GtkTreeView
14038  *
14039  * Returns the compare function currently in use.
14040  *
14041  * Return value: the currently used compare function for the search code.
14042  */
14043
14044 GtkTreeViewSearchEqualFunc
14045 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
14046 {
14047   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14048
14049   return tree_view->priv->search_equal_func;
14050 }
14051
14052 /**
14053  * gtk_tree_view_set_search_equal_func:
14054  * @tree_view: A #GtkTreeView
14055  * @search_equal_func: the compare function to use during the search
14056  * @search_user_data: (allow-none): user data to pass to @search_equal_func, or %NULL
14057  * @search_destroy: (allow-none): Destroy notifier for @search_user_data, or %NULL
14058  *
14059  * Sets the compare function for the interactive search capabilities; note
14060  * that somewhat like strcmp() returning 0 for equality
14061  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
14062  **/
14063 void
14064 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
14065                                      GtkTreeViewSearchEqualFunc  search_equal_func,
14066                                      gpointer                    search_user_data,
14067                                      GDestroyNotify              search_destroy)
14068 {
14069   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14070   g_return_if_fail (search_equal_func != NULL);
14071
14072   if (tree_view->priv->search_destroy)
14073     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
14074
14075   tree_view->priv->search_equal_func = search_equal_func;
14076   tree_view->priv->search_user_data = search_user_data;
14077   tree_view->priv->search_destroy = search_destroy;
14078   if (tree_view->priv->search_equal_func == NULL)
14079     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
14080 }
14081
14082 /**
14083  * gtk_tree_view_get_search_entry:
14084  * @tree_view: A #GtkTreeView
14085  *
14086  * Returns the #GtkEntry which is currently in use as interactive search
14087  * entry for @tree_view.  In case the built-in entry is being used, %NULL
14088  * will be returned.
14089  *
14090  * Return value: (transfer none): the entry currently in use as search entry.
14091  *
14092  * Since: 2.10
14093  */
14094 GtkEntry *
14095 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14096 {
14097   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14098
14099   if (tree_view->priv->search_custom_entry_set)
14100     return GTK_ENTRY (tree_view->priv->search_entry);
14101
14102   return NULL;
14103 }
14104
14105 /**
14106  * gtk_tree_view_set_search_entry:
14107  * @tree_view: A #GtkTreeView
14108  * @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
14109  *
14110  * Sets the entry which the interactive search code will use for this
14111  * @tree_view.  This is useful when you want to provide a search entry
14112  * in our interface at all time at a fixed position.  Passing %NULL for
14113  * @entry will make the interactive search code use the built-in popup
14114  * entry again.
14115  *
14116  * Since: 2.10
14117  */
14118 void
14119 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14120                                 GtkEntry    *entry)
14121 {
14122   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14123   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
14124
14125   if (tree_view->priv->search_custom_entry_set)
14126     {
14127       if (tree_view->priv->search_entry_changed_id)
14128         {
14129           g_signal_handler_disconnect (tree_view->priv->search_entry,
14130                                        tree_view->priv->search_entry_changed_id);
14131           tree_view->priv->search_entry_changed_id = 0;
14132         }
14133       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14134                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14135                                             tree_view);
14136
14137       g_object_unref (tree_view->priv->search_entry);
14138     }
14139   else if (tree_view->priv->search_window)
14140     {
14141       gtk_widget_destroy (tree_view->priv->search_window);
14142
14143       tree_view->priv->search_window = NULL;
14144     }
14145
14146   if (entry)
14147     {
14148       tree_view->priv->search_entry = g_object_ref (entry);
14149       tree_view->priv->search_custom_entry_set = TRUE;
14150
14151       if (tree_view->priv->search_entry_changed_id == 0)
14152         {
14153           tree_view->priv->search_entry_changed_id =
14154             g_signal_connect (tree_view->priv->search_entry, "changed",
14155                               G_CALLBACK (gtk_tree_view_search_init),
14156                               tree_view);
14157         }
14158
14159         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14160                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14161                           tree_view);
14162
14163         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14164     }
14165   else
14166     {
14167       tree_view->priv->search_entry = NULL;
14168       tree_view->priv->search_custom_entry_set = FALSE;
14169     }
14170 }
14171
14172 /**
14173  * gtk_tree_view_set_search_position_func:
14174  * @tree_view: A #GtkTreeView
14175  * @func: (allow-none): the function to use to position the search dialog, or %NULL
14176  *    to use the default search position function
14177  * @data: (allow-none): user data to pass to @func, or %NULL
14178  * @destroy: (allow-none): Destroy notifier for @data, or %NULL
14179  *
14180  * Sets the function to use when positioning the search dialog.
14181  *
14182  * Since: 2.10
14183  **/
14184 void
14185 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14186                                         GtkTreeViewSearchPositionFunc  func,
14187                                         gpointer                       user_data,
14188                                         GDestroyNotify                 destroy)
14189 {
14190   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14191
14192   if (tree_view->priv->search_position_destroy)
14193     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14194
14195   tree_view->priv->search_position_func = func;
14196   tree_view->priv->search_position_user_data = user_data;
14197   tree_view->priv->search_position_destroy = destroy;
14198   if (tree_view->priv->search_position_func == NULL)
14199     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14200 }
14201
14202 /**
14203  * gtk_tree_view_get_search_position_func:
14204  * @tree_view: A #GtkTreeView
14205  *
14206  * Returns the positioning function currently in use.
14207  *
14208  * Return value: the currently used function for positioning the search dialog.
14209  *
14210  * Since: 2.10
14211  */
14212 GtkTreeViewSearchPositionFunc
14213 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14214 {
14215   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14216
14217   return tree_view->priv->search_position_func;
14218 }
14219
14220
14221 static void
14222 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14223                                   GtkTreeView *tree_view,
14224                                   GdkDevice   *device)
14225 {
14226   if (tree_view->priv->disable_popdown)
14227     return;
14228
14229   if (tree_view->priv->search_entry_changed_id)
14230     {
14231       g_signal_handler_disconnect (tree_view->priv->search_entry,
14232                                    tree_view->priv->search_entry_changed_id);
14233       tree_view->priv->search_entry_changed_id = 0;
14234     }
14235   if (tree_view->priv->typeselect_flush_timeout)
14236     {
14237       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14238       tree_view->priv->typeselect_flush_timeout = 0;
14239     }
14240
14241   if (gtk_widget_get_visible (search_dialog))
14242     {
14243       /* send focus-in event */
14244       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), device, FALSE);
14245       gtk_widget_hide (search_dialog);
14246       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14247       send_focus_change (GTK_WIDGET (tree_view), device, TRUE);
14248     }
14249 }
14250
14251 static void
14252 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14253                                     GtkWidget   *search_dialog,
14254                                     gpointer     user_data)
14255 {
14256   gint x, y;
14257   gint tree_x, tree_y;
14258   gint tree_width, tree_height;
14259   GdkWindow *tree_window = gtk_widget_get_window (GTK_WIDGET (tree_view));
14260   GdkScreen *screen = gdk_window_get_screen (tree_window);
14261   GtkRequisition requisition;
14262   gint monitor_num;
14263   GdkRectangle monitor;
14264
14265   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14266   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14267
14268   gtk_widget_realize (search_dialog);
14269
14270   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14271   gdk_drawable_get_size (tree_window,
14272                          &tree_width,
14273                          &tree_height);
14274   gtk_size_request_get_size (GTK_SIZE_REQUEST (search_dialog),
14275                              &requisition, NULL);
14276
14277   if (tree_x + tree_width > gdk_screen_get_width (screen))
14278     x = gdk_screen_get_width (screen) - requisition.width;
14279   else if (tree_x + tree_width - requisition.width < 0)
14280     x = 0;
14281   else
14282     x = tree_x + tree_width - requisition.width;
14283
14284   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14285     y = gdk_screen_get_height (screen) - requisition.height;
14286   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14287     y = 0;
14288   else
14289     y = tree_y + tree_height;
14290
14291   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14292 }
14293
14294 static void
14295 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14296                                       GtkMenu  *menu,
14297                                       gpointer  data)
14298 {
14299   GtkTreeView *tree_view = (GtkTreeView *)data;
14300
14301   tree_view->priv->disable_popdown = 1;
14302   g_signal_connect (menu, "hide",
14303                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14304 }
14305
14306 /* Because we're visible but offscreen, we just set a flag in the preedit
14307  * callback.
14308  */
14309 static void
14310 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14311                                       GtkTreeView  *tree_view)
14312 {
14313   tree_view->priv->imcontext_changed = 1;
14314   if (tree_view->priv->typeselect_flush_timeout)
14315     {
14316       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14317       tree_view->priv->typeselect_flush_timeout =
14318         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14319                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14320                        tree_view);
14321     }
14322
14323 }
14324
14325 static void
14326 gtk_tree_view_search_activate (GtkEntry    *entry,
14327                                GtkTreeView *tree_view)
14328 {
14329   GtkTreePath *path;
14330   GtkRBNode *node;
14331   GtkRBTree *tree;
14332
14333   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14334                                     tree_view,
14335                                     gtk_get_current_event_device ());
14336
14337   /* If we have a row selected and it's the cursor row, we activate
14338    * the row XXX */
14339   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14340     {
14341       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14342
14343       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14344
14345       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14346         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14347
14348       gtk_tree_path_free (path);
14349     }
14350 }
14351
14352 static gboolean
14353 gtk_tree_view_real_search_enable_popdown (gpointer data)
14354 {
14355   GtkTreeView *tree_view = (GtkTreeView *)data;
14356
14357   tree_view->priv->disable_popdown = 0;
14358
14359   return FALSE;
14360 }
14361
14362 static void
14363 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14364                                      gpointer   data)
14365 {
14366   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14367 }
14368
14369 static gboolean
14370 gtk_tree_view_search_delete_event (GtkWidget *widget,
14371                                    GdkEventAny *event,
14372                                    GtkTreeView *tree_view)
14373 {
14374   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14375
14376   gtk_tree_view_search_dialog_hide (widget, tree_view, NULL);
14377
14378   return TRUE;
14379 }
14380
14381 static gboolean
14382 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14383                                          GdkEventButton *event,
14384                                          GtkTreeView *tree_view)
14385 {
14386   GdkDevice *keyb_device;
14387
14388   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14389
14390   keyb_device = gdk_device_get_associated_device (event->device);
14391   gtk_tree_view_search_dialog_hide (widget, tree_view, keyb_device);
14392
14393   if (event->window == tree_view->priv->bin_window)
14394     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14395
14396   return TRUE;
14397 }
14398
14399 static gboolean
14400 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14401                                    GdkEventScroll *event,
14402                                    GtkTreeView *tree_view)
14403 {
14404   gboolean retval = FALSE;
14405
14406   if (event->direction == GDK_SCROLL_UP)
14407     {
14408       gtk_tree_view_search_move (widget, tree_view, TRUE);
14409       retval = TRUE;
14410     }
14411   else if (event->direction == GDK_SCROLL_DOWN)
14412     {
14413       gtk_tree_view_search_move (widget, tree_view, FALSE);
14414       retval = TRUE;
14415     }
14416
14417   /* renew the flush timeout */
14418   if (retval && tree_view->priv->typeselect_flush_timeout
14419       && !tree_view->priv->search_custom_entry_set)
14420     {
14421       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14422       tree_view->priv->typeselect_flush_timeout =
14423         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14424                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14425                        tree_view);
14426     }
14427
14428   return retval;
14429 }
14430
14431 static gboolean
14432 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14433                                       GdkEventKey *event,
14434                                       GtkTreeView *tree_view)
14435 {
14436   gboolean retval = FALSE;
14437
14438   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14439   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14440
14441   /* close window and cancel the search */
14442   if (!tree_view->priv->search_custom_entry_set
14443       && (event->keyval == GDK_KEY_Escape ||
14444           event->keyval == GDK_KEY_Tab ||
14445             event->keyval == GDK_KEY_KP_Tab ||
14446             event->keyval == GDK_KEY_ISO_Left_Tab))
14447     {
14448       gtk_tree_view_search_dialog_hide (widget, tree_view,
14449                                         gdk_event_get_device ((GdkEvent *) event));
14450       return TRUE;
14451     }
14452
14453   /* select previous matching iter */
14454   if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_KP_Up)
14455     {
14456       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14457         gtk_widget_error_bell (widget);
14458
14459       retval = TRUE;
14460     }
14461
14462   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK))
14463       && (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
14464     {
14465       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14466         gtk_widget_error_bell (widget);
14467
14468       retval = TRUE;
14469     }
14470
14471   /* select next matching iter */
14472   if (event->keyval == GDK_KEY_Down || event->keyval == GDK_KEY_KP_Down)
14473     {
14474       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14475         gtk_widget_error_bell (widget);
14476
14477       retval = TRUE;
14478     }
14479
14480   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == GTK_DEFAULT_ACCEL_MOD_MASK)
14481       && (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
14482     {
14483       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14484         gtk_widget_error_bell (widget);
14485
14486       retval = TRUE;
14487     }
14488
14489   /* renew the flush timeout */
14490   if (retval && tree_view->priv->typeselect_flush_timeout
14491       && !tree_view->priv->search_custom_entry_set)
14492     {
14493       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14494       tree_view->priv->typeselect_flush_timeout =
14495         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14496                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14497                        tree_view);
14498     }
14499
14500   return retval;
14501 }
14502
14503 /*  this function returns FALSE if there is a search string but
14504  *  nothing was found, and TRUE otherwise.
14505  */
14506 static gboolean
14507 gtk_tree_view_search_move (GtkWidget   *window,
14508                            GtkTreeView *tree_view,
14509                            gboolean     up)
14510 {
14511   gboolean ret;
14512   gint len;
14513   gint count = 0;
14514   const gchar *text;
14515   GtkTreeIter iter;
14516   GtkTreeModel *model;
14517   GtkTreeSelection *selection;
14518
14519   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14520
14521   g_return_val_if_fail (text != NULL, FALSE);
14522
14523   len = strlen (text);
14524
14525   if (up && tree_view->priv->selected_iter == 1)
14526     return strlen (text) < 1;
14527
14528   len = strlen (text);
14529
14530   if (len < 1)
14531     return TRUE;
14532
14533   model = gtk_tree_view_get_model (tree_view);
14534   selection = gtk_tree_view_get_selection (tree_view);
14535
14536   /* search */
14537   gtk_tree_selection_unselect_all (selection);
14538   if (!gtk_tree_model_get_iter_first (model, &iter))
14539     return TRUE;
14540
14541   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14542                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14543
14544   if (ret)
14545     {
14546       /* found */
14547       tree_view->priv->selected_iter += up?(-1):(1);
14548       return TRUE;
14549     }
14550   else
14551     {
14552       /* return to old iter */
14553       count = 0;
14554       gtk_tree_model_get_iter_first (model, &iter);
14555       gtk_tree_view_search_iter (model, selection,
14556                                  &iter, text,
14557                                  &count, tree_view->priv->selected_iter);
14558       return FALSE;
14559     }
14560 }
14561
14562 static gboolean
14563 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14564                                  gint          column,
14565                                  const gchar  *key,
14566                                  GtkTreeIter  *iter,
14567                                  gpointer      search_data)
14568 {
14569   gboolean retval = TRUE;
14570   const gchar *str;
14571   gchar *normalized_string;
14572   gchar *normalized_key;
14573   gchar *case_normalized_string = NULL;
14574   gchar *case_normalized_key = NULL;
14575   GValue value = {0,};
14576   GValue transformed = {0,};
14577
14578   gtk_tree_model_get_value (model, iter, column, &value);
14579
14580   g_value_init (&transformed, G_TYPE_STRING);
14581
14582   if (!g_value_transform (&value, &transformed))
14583     {
14584       g_value_unset (&value);
14585       return TRUE;
14586     }
14587
14588   g_value_unset (&value);
14589
14590   str = g_value_get_string (&transformed);
14591   if (!str)
14592     {
14593       g_value_unset (&transformed);
14594       return TRUE;
14595     }
14596
14597   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14598   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14599
14600   if (normalized_string && normalized_key)
14601     {
14602       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14603       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14604
14605       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14606         retval = FALSE;
14607     }
14608
14609   g_value_unset (&transformed);
14610   g_free (normalized_key);
14611   g_free (normalized_string);
14612   g_free (case_normalized_key);
14613   g_free (case_normalized_string);
14614
14615   return retval;
14616 }
14617
14618 static gboolean
14619 gtk_tree_view_search_iter (GtkTreeModel     *model,
14620                            GtkTreeSelection *selection,
14621                            GtkTreeIter      *iter,
14622                            const gchar      *text,
14623                            gint             *count,
14624                            gint              n)
14625 {
14626   GtkRBTree *tree = NULL;
14627   GtkRBNode *node = NULL;
14628   GtkTreePath *path;
14629
14630   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14631
14632   path = gtk_tree_model_get_path (model, iter);
14633   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14634
14635   do
14636     {
14637       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14638         {
14639           (*count)++;
14640           if (*count == n)
14641             {
14642               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14643                                             TRUE, 0.5, 0.0);
14644               gtk_tree_selection_select_iter (selection, iter);
14645               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14646
14647               if (path)
14648                 gtk_tree_path_free (path);
14649
14650               return TRUE;
14651             }
14652         }
14653
14654       if (node->children)
14655         {
14656           gboolean has_child;
14657           GtkTreeIter tmp;
14658
14659           tree = node->children;
14660           node = tree->root;
14661
14662           while (node->left != tree->nil)
14663             node = node->left;
14664
14665           tmp = *iter;
14666           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14667           gtk_tree_path_down (path);
14668
14669           /* sanity check */
14670           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14671         }
14672       else
14673         {
14674           gboolean done = FALSE;
14675
14676           do
14677             {
14678               node = _gtk_rbtree_next (tree, node);
14679
14680               if (node)
14681                 {
14682                   gboolean has_next;
14683
14684                   has_next = gtk_tree_model_iter_next (model, iter);
14685
14686                   done = TRUE;
14687                   gtk_tree_path_next (path);
14688
14689                   /* sanity check */
14690                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14691                 }
14692               else
14693                 {
14694                   gboolean has_parent;
14695                   GtkTreeIter tmp_iter = *iter;
14696
14697                   node = tree->parent_node;
14698                   tree = tree->parent_tree;
14699
14700                   if (!tree)
14701                     {
14702                       if (path)
14703                         gtk_tree_path_free (path);
14704
14705                       /* we've run out of tree, done with this func */
14706                       return FALSE;
14707                     }
14708
14709                   has_parent = gtk_tree_model_iter_parent (model,
14710                                                            iter,
14711                                                            &tmp_iter);
14712                   gtk_tree_path_up (path);
14713
14714                   /* sanity check */
14715                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14716                 }
14717             }
14718           while (!done);
14719         }
14720     }
14721   while (1);
14722
14723   return FALSE;
14724 }
14725
14726 static void
14727 gtk_tree_view_search_init (GtkWidget   *entry,
14728                            GtkTreeView *tree_view)
14729 {
14730   gint ret;
14731   gint count = 0;
14732   const gchar *text;
14733   GtkTreeIter iter;
14734   GtkTreeModel *model;
14735   GtkTreeSelection *selection;
14736
14737   g_return_if_fail (GTK_IS_ENTRY (entry));
14738   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14739
14740   text = gtk_entry_get_text (GTK_ENTRY (entry));
14741
14742   model = gtk_tree_view_get_model (tree_view);
14743   selection = gtk_tree_view_get_selection (tree_view);
14744
14745   /* search */
14746   gtk_tree_selection_unselect_all (selection);
14747   if (tree_view->priv->typeselect_flush_timeout
14748       && !tree_view->priv->search_custom_entry_set)
14749     {
14750       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14751       tree_view->priv->typeselect_flush_timeout =
14752         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14753                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14754                        tree_view);
14755     }
14756
14757   if (*text == '\0')
14758     return;
14759
14760   if (!gtk_tree_model_get_iter_first (model, &iter))
14761     return;
14762
14763   ret = gtk_tree_view_search_iter (model, selection,
14764                                    &iter, text,
14765                                    &count, 1);
14766
14767   if (ret)
14768     tree_view->priv->selected_iter = 1;
14769 }
14770
14771 static void
14772 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14773                              GtkTreeView     *tree_view)
14774 {
14775   if (tree_view->priv->edited_column == NULL)
14776     return;
14777
14778   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14779   tree_view->priv->edited_column = NULL;
14780
14781   if (gtk_widget_has_focus (GTK_WIDGET (cell_editable)))
14782     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14783
14784   g_signal_handlers_disconnect_by_func (cell_editable,
14785                                         gtk_tree_view_remove_widget,
14786                                         tree_view);
14787
14788   gtk_container_remove (GTK_CONTAINER (tree_view),
14789                         GTK_WIDGET (cell_editable));
14790
14791   /* FIXME should only redraw a single node */
14792   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14793 }
14794
14795 static gboolean
14796 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14797                              GtkTreePath *cursor_path)
14798 {
14799   GtkTreeIter iter;
14800   GdkRectangle background_area;
14801   GdkRectangle cell_area;
14802   GtkCellEditable *editable_widget = NULL;
14803   gchar *path_string;
14804   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14805   gint retval = FALSE;
14806   GtkRBTree *cursor_tree;
14807   GtkRBNode *cursor_node;
14808
14809   g_assert (tree_view->priv->focus_column);
14810
14811   if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
14812     return FALSE;
14813
14814   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14815       cursor_node == NULL)
14816     return FALSE;
14817
14818   path_string = gtk_tree_path_to_string (cursor_path);
14819   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14820
14821   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14822
14823   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14824                                            tree_view->priv->model,
14825                                            &iter,
14826                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14827                                            cursor_node->children?TRUE:FALSE);
14828   gtk_tree_view_get_background_area (tree_view,
14829                                      cursor_path,
14830                                      tree_view->priv->focus_column,
14831                                      &background_area);
14832   gtk_tree_view_get_cell_area (tree_view,
14833                                cursor_path,
14834                                tree_view->priv->focus_column,
14835                                &cell_area);
14836
14837   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14838                                         &editable_widget,
14839                                         NULL,
14840                                         path_string,
14841                                         &background_area,
14842                                         &cell_area,
14843                                         flags))
14844     {
14845       retval = TRUE;
14846       if (editable_widget != NULL)
14847         {
14848           gint left, right;
14849           GdkRectangle area;
14850           GtkCellRenderer *cell;
14851
14852           area = cell_area;
14853           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14854
14855           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14856
14857           area.x += left;
14858           area.width -= right + left;
14859
14860           gtk_tree_view_real_start_editing (tree_view,
14861                                             tree_view->priv->focus_column,
14862                                             cursor_path,
14863                                             editable_widget,
14864                                             &area,
14865                                             NULL,
14866                                             flags);
14867         }
14868
14869     }
14870   g_free (path_string);
14871   return retval;
14872 }
14873
14874 static void
14875 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14876                                   GtkTreeViewColumn *column,
14877                                   GtkTreePath       *path,
14878                                   GtkCellEditable   *cell_editable,
14879                                   GdkRectangle      *cell_area,
14880                                   GdkEvent          *event,
14881                                   guint              flags)
14882 {
14883   gint pre_val = tree_view->priv->vadjustment->value;
14884   GtkRequisition requisition;
14885
14886   tree_view->priv->edited_column = column;
14887   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14888
14889   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14890   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14891
14892   gtk_size_request_get_size (GTK_SIZE_REQUEST (cell_editable),
14893                              &requisition, NULL);
14894
14895   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14896
14897   if (requisition.height < cell_area->height)
14898     {
14899       gint diff = cell_area->height - requisition.height;
14900       gtk_tree_view_put (tree_view,
14901                          GTK_WIDGET (cell_editable),
14902                          cell_area->x, cell_area->y + diff/2,
14903                          cell_area->width, requisition.height);
14904     }
14905   else
14906     {
14907       gtk_tree_view_put (tree_view,
14908                          GTK_WIDGET (cell_editable),
14909                          cell_area->x, cell_area->y,
14910                          cell_area->width, cell_area->height);
14911     }
14912
14913   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14914                                    (GdkEvent *)event);
14915
14916   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14917   g_signal_connect (cell_editable, "remove-widget",
14918                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14919 }
14920
14921 static void
14922 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14923                             gboolean     cancel_editing)
14924 {
14925   GtkTreeViewColumn *column;
14926   GtkCellRenderer *cell;
14927
14928   if (tree_view->priv->edited_column == NULL)
14929     return;
14930
14931   /*
14932    * This is very evil. We need to do this, because
14933    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14934    * later on. If gtk_tree_view_row_changed notices
14935    * tree_view->priv->edited_column != NULL, it'll call
14936    * gtk_tree_view_stop_editing again. Bad things will happen then.
14937    *
14938    * Please read that again if you intend to modify anything here.
14939    */
14940
14941   column = tree_view->priv->edited_column;
14942   tree_view->priv->edited_column = NULL;
14943
14944   cell = _gtk_tree_view_column_get_edited_cell (column);
14945   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14946
14947   if (!cancel_editing)
14948     gtk_cell_editable_editing_done (column->editable_widget);
14949
14950   tree_view->priv->edited_column = column;
14951
14952   gtk_cell_editable_remove_widget (column->editable_widget);
14953 }
14954
14955
14956 /**
14957  * gtk_tree_view_set_hover_selection:
14958  * @tree_view: a #GtkTreeView
14959  * @hover: %TRUE to enable hover selection mode
14960  *
14961  * Enables of disables the hover selection mode of @tree_view.
14962  * Hover selection makes the selected row follow the pointer.
14963  * Currently, this works only for the selection modes
14964  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14965  *
14966  * Since: 2.6
14967  **/
14968 void
14969 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14970                                    gboolean     hover)
14971 {
14972   hover = hover != FALSE;
14973
14974   if (hover != tree_view->priv->hover_selection)
14975     {
14976       tree_view->priv->hover_selection = hover;
14977
14978       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14979     }
14980 }
14981
14982 /**
14983  * gtk_tree_view_get_hover_selection:
14984  * @tree_view: a #GtkTreeView
14985  *
14986  * Returns whether hover selection mode is turned on for @tree_view.
14987  *
14988  * Return value: %TRUE if @tree_view is in hover selection mode
14989  *
14990  * Since: 2.6
14991  **/
14992 gboolean
14993 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14994 {
14995   return tree_view->priv->hover_selection;
14996 }
14997
14998 /**
14999  * gtk_tree_view_set_hover_expand:
15000  * @tree_view: a #GtkTreeView
15001  * @expand: %TRUE to enable hover selection mode
15002  *
15003  * Enables of disables the hover expansion mode of @tree_view.
15004  * Hover expansion makes rows expand or collapse if the pointer
15005  * moves over them.
15006  *
15007  * Since: 2.6
15008  **/
15009 void
15010 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
15011                                 gboolean     expand)
15012 {
15013   expand = expand != FALSE;
15014
15015   if (expand != tree_view->priv->hover_expand)
15016     {
15017       tree_view->priv->hover_expand = expand;
15018
15019       g_object_notify (G_OBJECT (tree_view), "hover-expand");
15020     }
15021 }
15022
15023 /**
15024  * gtk_tree_view_get_hover_expand:
15025  * @tree_view: a #GtkTreeView
15026  *
15027  * Returns whether hover expansion mode is turned on for @tree_view.
15028  *
15029  * Return value: %TRUE if @tree_view is in hover expansion mode
15030  *
15031  * Since: 2.6
15032  **/
15033 gboolean
15034 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
15035 {
15036   return tree_view->priv->hover_expand;
15037 }
15038
15039 /**
15040  * gtk_tree_view_set_rubber_banding:
15041  * @tree_view: a #GtkTreeView
15042  * @enable: %TRUE to enable rubber banding
15043  *
15044  * Enables or disables rubber banding in @tree_view.  If the selection mode
15045  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
15046  * multiple rows by dragging the mouse.
15047  *
15048  * Since: 2.10
15049  **/
15050 void
15051 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
15052                                   gboolean     enable)
15053 {
15054   enable = enable != FALSE;
15055
15056   if (enable != tree_view->priv->rubber_banding_enable)
15057     {
15058       tree_view->priv->rubber_banding_enable = enable;
15059
15060       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
15061     }
15062 }
15063
15064 /**
15065  * gtk_tree_view_get_rubber_banding:
15066  * @tree_view: a #GtkTreeView
15067  *
15068  * Returns whether rubber banding is turned on for @tree_view.  If the
15069  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
15070  * user to select multiple rows by dragging the mouse.
15071  *
15072  * Return value: %TRUE if rubber banding in @tree_view is enabled.
15073  *
15074  * Since: 2.10
15075  **/
15076 gboolean
15077 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
15078 {
15079   return tree_view->priv->rubber_banding_enable;
15080 }
15081
15082 /**
15083  * gtk_tree_view_is_rubber_banding_active:
15084  * @tree_view: a #GtkTreeView
15085  *
15086  * Returns whether a rubber banding operation is currently being done
15087  * in @tree_view.
15088  *
15089  * Return value: %TRUE if a rubber banding operation is currently being
15090  * done in @tree_view.
15091  *
15092  * Since: 2.12
15093  **/
15094 gboolean
15095 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
15096 {
15097   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15098
15099   if (tree_view->priv->rubber_banding_enable
15100       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15101     return TRUE;
15102
15103   return FALSE;
15104 }
15105
15106 /**
15107  * gtk_tree_view_get_row_separator_func:
15108  * @tree_view: a #GtkTreeView
15109  *
15110  * Returns the current row separator function.
15111  *
15112  * Return value: the current row separator function.
15113  *
15114  * Since: 2.6
15115  **/
15116 GtkTreeViewRowSeparatorFunc
15117 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15118 {
15119   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15120
15121   return tree_view->priv->row_separator_func;
15122 }
15123
15124 /**
15125  * gtk_tree_view_set_row_separator_func:
15126  * @tree_view: a #GtkTreeView
15127  * @func: (allow-none): a #GtkTreeViewRowSeparatorFunc
15128  * @data: (allow-none): user data to pass to @func, or %NULL
15129  * @destroy: (allow-none): destroy notifier for @data, or %NULL
15130  *
15131  * Sets the row separator function, which is used to determine
15132  * whether a row should be drawn as a separator. If the row separator
15133  * function is %NULL, no separators are drawn. This is the default value.
15134  *
15135  * Since: 2.6
15136  **/
15137 void
15138 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15139                                       GtkTreeViewRowSeparatorFunc  func,
15140                                       gpointer                     data,
15141                                       GDestroyNotify               destroy)
15142 {
15143   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15144
15145   if (tree_view->priv->row_separator_destroy)
15146     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15147
15148   tree_view->priv->row_separator_func = func;
15149   tree_view->priv->row_separator_data = data;
15150   tree_view->priv->row_separator_destroy = destroy;
15151
15152   /* Have the tree recalculate heights */
15153   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
15154   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
15155 }
15156
15157
15158 static void
15159 gtk_tree_view_grab_notify (GtkWidget *widget,
15160                            gboolean   was_grabbed)
15161 {
15162   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15163
15164   tree_view->priv->in_grab = !was_grabbed;
15165
15166   if (!was_grabbed)
15167     {
15168       tree_view->priv->pressed_button = -1;
15169
15170       if (tree_view->priv->rubber_band_status)
15171         gtk_tree_view_stop_rubber_band (tree_view);
15172     }
15173 }
15174
15175 static void
15176 gtk_tree_view_state_changed (GtkWidget      *widget,
15177                              GtkStateType    previous_state)
15178 {
15179   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15180
15181   if (gtk_widget_get_realized (widget))
15182     {
15183       gdk_window_set_background (tree_view->priv->bin_window,
15184                                  &gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
15185     }
15186
15187   gtk_widget_queue_draw (widget);
15188 }
15189
15190 /**
15191  * gtk_tree_view_get_grid_lines:
15192  * @tree_view: a #GtkTreeView
15193  *
15194  * Returns which grid lines are enabled in @tree_view.
15195  *
15196  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15197  * are enabled.
15198  *
15199  * Since: 2.10
15200  */
15201 GtkTreeViewGridLines
15202 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15203 {
15204   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15205
15206   return tree_view->priv->grid_lines;
15207 }
15208
15209 /**
15210  * gtk_tree_view_set_grid_lines:
15211  * @tree_view: a #GtkTreeView
15212  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15213  * enable.
15214  *
15215  * Sets which grid lines to draw in @tree_view.
15216  *
15217  * Since: 2.10
15218  */
15219 void
15220 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15221                               GtkTreeViewGridLines   grid_lines)
15222 {
15223   GtkTreeViewPrivate *priv;
15224   GtkWidget *widget;
15225   GtkTreeViewGridLines old_grid_lines;
15226
15227   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15228
15229   priv = tree_view->priv;
15230   widget = GTK_WIDGET (tree_view);
15231
15232   old_grid_lines = priv->grid_lines;
15233   priv->grid_lines = grid_lines;
15234
15235   if (gtk_widget_get_realized (widget))
15236     {
15237       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15238           priv->grid_line_width)
15239         {
15240           priv->grid_line_width = 0;
15241         }
15242
15243       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15244           !priv->grid_line_width)
15245         {
15246           gint8 *dash_list;
15247
15248           gtk_widget_style_get (widget,
15249                                 "grid-line-width", &priv->grid_line_width,
15250                                 "grid-line-pattern", (gchar *)&dash_list,
15251                                 NULL);
15252
15253           if (dash_list)
15254             {
15255               priv->grid_line_dashes[0] = dash_list[0];
15256               if (dash_list[0])
15257                 priv->grid_line_dashes[1] = dash_list[1];
15258
15259               g_free (dash_list);
15260             }
15261           else
15262             {
15263               priv->grid_line_dashes[0] = 1;
15264               priv->grid_line_dashes[1] = 1;
15265             }
15266         }
15267     }
15268
15269   if (old_grid_lines != grid_lines)
15270     {
15271       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15272
15273       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15274     }
15275 }
15276
15277 /**
15278  * gtk_tree_view_get_enable_tree_lines:
15279  * @tree_view: a #GtkTreeView.
15280  *
15281  * Returns whether or not tree lines are drawn in @tree_view.
15282  *
15283  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15284  * otherwise.
15285  *
15286  * Since: 2.10
15287  */
15288 gboolean
15289 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15290 {
15291   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15292
15293   return tree_view->priv->tree_lines_enabled;
15294 }
15295
15296 /**
15297  * gtk_tree_view_set_enable_tree_lines:
15298  * @tree_view: a #GtkTreeView
15299  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15300  *
15301  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15302  * This does not have any visible effects for lists.
15303  *
15304  * Since: 2.10
15305  */
15306 void
15307 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15308                                      gboolean     enabled)
15309 {
15310   GtkTreeViewPrivate *priv;
15311   GtkWidget *widget;
15312   gboolean was_enabled;
15313
15314   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15315
15316   enabled = enabled != FALSE;
15317
15318   priv = tree_view->priv;
15319   widget = GTK_WIDGET (tree_view);
15320
15321   was_enabled = priv->tree_lines_enabled;
15322
15323   priv->tree_lines_enabled = enabled;
15324
15325   if (gtk_widget_get_realized (widget))
15326     {
15327       if (!enabled && priv->tree_line_width)
15328         {
15329           priv->tree_line_width = 0;
15330         }
15331
15332       if (enabled && !priv->tree_line_width)
15333         {
15334           gint8 *dash_list;
15335           gtk_widget_style_get (widget,
15336                                 "tree-line-width", &priv->tree_line_width,
15337                                 "tree-line-pattern", (gchar *)&dash_list,
15338                                 NULL);
15339
15340           if (dash_list)
15341             {
15342               priv->tree_line_dashes[0] = dash_list[0];
15343               if (dash_list[0])
15344                 priv->tree_line_dashes[1] = dash_list[1];
15345
15346               g_free (dash_list);
15347             }
15348           else
15349             {
15350               priv->tree_line_dashes[0] = 1;
15351               priv->tree_line_dashes[1] = 1;
15352             }
15353         }
15354     }
15355
15356   if (was_enabled != enabled)
15357     {
15358       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15359
15360       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15361     }
15362 }
15363
15364
15365 /**
15366  * gtk_tree_view_set_show_expanders:
15367  * @tree_view: a #GtkTreeView
15368  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15369  *
15370  * Sets whether to draw and enable expanders and indent child rows in
15371  * @tree_view.  When disabled there will be no expanders visible in trees
15372  * and there will be no way to expand and collapse rows by default.  Also
15373  * note that hiding the expanders will disable the default indentation.  You
15374  * can set a custom indentation in this case using
15375  * gtk_tree_view_set_level_indentation().
15376  * This does not have any visible effects for lists.
15377  *
15378  * Since: 2.12
15379  */
15380 void
15381 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15382                                   gboolean     enabled)
15383 {
15384   gboolean was_enabled;
15385
15386   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15387
15388   enabled = enabled != FALSE;
15389   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15390
15391   if (enabled)
15392     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15393   else
15394     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15395
15396   if (enabled != was_enabled)
15397     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15398 }
15399
15400 /**
15401  * gtk_tree_view_get_show_expanders:
15402  * @tree_view: a #GtkTreeView.
15403  *
15404  * Returns whether or not expanders are drawn in @tree_view.
15405  *
15406  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15407  * otherwise.
15408  *
15409  * Since: 2.12
15410  */
15411 gboolean
15412 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15413 {
15414   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15415
15416   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15417 }
15418
15419 /**
15420  * gtk_tree_view_set_level_indentation:
15421  * @tree_view: a #GtkTreeView
15422  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15423  *
15424  * Sets the amount of extra indentation for child levels to use in @tree_view
15425  * in addition to the default indentation.  The value should be specified in
15426  * pixels, a value of 0 disables this feature and in this case only the default
15427  * indentation will be used.
15428  * This does not have any visible effects for lists.
15429  *
15430  * Since: 2.12
15431  */
15432 void
15433 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15434                                      gint         indentation)
15435 {
15436   tree_view->priv->level_indentation = indentation;
15437
15438   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15439 }
15440
15441 /**
15442  * gtk_tree_view_get_level_indentation:
15443  * @tree_view: a #GtkTreeView.
15444  *
15445  * Returns the amount, in pixels, of extra indentation for child levels
15446  * in @tree_view.
15447  *
15448  * Return value: the amount of extra indentation for child levels in
15449  * @tree_view.  A return value of 0 means that this feature is disabled.
15450  *
15451  * Since: 2.12
15452  */
15453 gint
15454 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15455 {
15456   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15457
15458   return tree_view->priv->level_indentation;
15459 }
15460
15461 /**
15462  * gtk_tree_view_set_tooltip_row:
15463  * @tree_view: a #GtkTreeView
15464  * @tooltip: a #GtkTooltip
15465  * @path: a #GtkTreePath
15466  *
15467  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15468  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15469  * See also gtk_tooltip_set_tip_area().
15470  *
15471  * Since: 2.12
15472  */
15473 void
15474 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15475                                GtkTooltip  *tooltip,
15476                                GtkTreePath *path)
15477 {
15478   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15479   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15480
15481   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15482 }
15483
15484 /**
15485  * gtk_tree_view_set_tooltip_cell:
15486  * @tree_view: a #GtkTreeView
15487  * @tooltip: a #GtkTooltip
15488  * @path: (allow-none): a #GtkTreePath or %NULL
15489  * @column: (allow-none): a #GtkTreeViewColumn or %NULL
15490  * @cell: (allow-none): a #GtkCellRenderer or %NULL
15491  *
15492  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15493  * in common.  For example if @path is %NULL and @column is set, the tip
15494  * area will be set to the full area covered by @column.  See also
15495  * gtk_tooltip_set_tip_area().
15496  *
15497  * Note that if @path is not specified and @cell is set and part of a column
15498  * containing the expander, the tooltip might not show and hide at the correct
15499  * position.  In such cases @path must be set to the current node under the
15500  * mouse cursor for this function to operate correctly.
15501  *
15502  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15503  *
15504  * Since: 2.12
15505  */
15506 void
15507 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15508                                 GtkTooltip        *tooltip,
15509                                 GtkTreePath       *path,
15510                                 GtkTreeViewColumn *column,
15511                                 GtkCellRenderer   *cell)
15512 {
15513   GtkAllocation allocation;
15514   GdkRectangle rect;
15515
15516   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15517   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15518   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15519   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15520
15521   /* Determine x values. */
15522   if (column && cell)
15523     {
15524       GdkRectangle tmp;
15525       gint start, width;
15526
15527       /* We always pass in path here, whether it is NULL or not.
15528        * For cells in expander columns path must be specified so that
15529        * we can correctly account for the indentation.  This also means
15530        * that the tooltip is constrained vertically by the "Determine y
15531        * values" code below; this is not a real problem since cells actually
15532        * don't stretch vertically in constrast to columns.
15533        */
15534       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15535       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15536
15537       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15538                                                          tmp.x + start, 0,
15539                                                          &rect.x, NULL);
15540       rect.width = width;
15541     }
15542   else if (column)
15543     {
15544       GdkRectangle tmp;
15545
15546       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15547       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15548                                                          tmp.x, 0,
15549                                                          &rect.x, NULL);
15550       rect.width = tmp.width;
15551     }
15552   else
15553     {
15554       gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
15555       rect.x = 0;
15556       rect.width = allocation.width;
15557     }
15558
15559   /* Determine y values. */
15560   if (path)
15561     {
15562       GdkRectangle tmp;
15563
15564       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15565       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15566                                                          0, tmp.y,
15567                                                          NULL, &rect.y);
15568       rect.height = tmp.height;
15569     }
15570   else
15571     {
15572       rect.y = 0;
15573       rect.height = tree_view->priv->vadjustment->page_size;
15574     }
15575
15576   gtk_tooltip_set_tip_area (tooltip, &rect);
15577 }
15578
15579 /**
15580  * gtk_tree_view_get_tooltip_context:
15581  * @tree_view: a #GtkTreeView
15582  * @x: the x coordinate (relative to widget coordinates)
15583  * @y: the y coordinate (relative to widget coordinates)
15584  * @keyboard_tip: whether this is a keyboard tooltip or not
15585  * @model: (out) (allow-none): a pointer to receive a #GtkTreeModel or %NULL
15586  * @path: (out) (allow-none): a pointer to receive a #GtkTreePath or %NULL
15587  * @iter: (out) (allow-none): a pointer to receive a #GtkTreeIter or %NULL
15588  *
15589  * This function is supposed to be used in a #GtkWidget::query-tooltip
15590  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15591  * which are received in the signal handler, should be passed to this
15592  * function without modification.
15593  *
15594  * The return value indicates whether there is a tree view row at the given
15595  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15596  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15597  * @model, @path and @iter which have been provided will be set to point to
15598  * that row and the corresponding model.  @x and @y will always be converted
15599  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15600  *
15601  * Return value: whether or not the given tooltip context points to a row.
15602  *
15603  * Since: 2.12
15604  */
15605 gboolean
15606 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15607                                    gint          *x,
15608                                    gint          *y,
15609                                    gboolean       keyboard_tip,
15610                                    GtkTreeModel **model,
15611                                    GtkTreePath  **path,
15612                                    GtkTreeIter   *iter)
15613 {
15614   GtkTreePath *tmppath = NULL;
15615
15616   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15617   g_return_val_if_fail (x != NULL, FALSE);
15618   g_return_val_if_fail (y != NULL, FALSE);
15619
15620   if (keyboard_tip)
15621     {
15622       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15623
15624       if (!tmppath)
15625         return FALSE;
15626     }
15627   else
15628     {
15629       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15630                                                          x, y);
15631
15632       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15633                                           &tmppath, NULL, NULL, NULL))
15634         return FALSE;
15635     }
15636
15637   if (model)
15638     *model = gtk_tree_view_get_model (tree_view);
15639
15640   if (iter)
15641     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15642                              iter, tmppath);
15643
15644   if (path)
15645     *path = tmppath;
15646   else
15647     gtk_tree_path_free (tmppath);
15648
15649   return TRUE;
15650 }
15651
15652 static gboolean
15653 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15654                                     gint        x,
15655                                     gint        y,
15656                                     gboolean    keyboard_tip,
15657                                     GtkTooltip *tooltip,
15658                                     gpointer    data)
15659 {
15660   GValue value = { 0, };
15661   GValue transformed = { 0, };
15662   GtkTreeIter iter;
15663   GtkTreePath *path;
15664   GtkTreeModel *model;
15665   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15666
15667   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15668                                           &x, &y,
15669                                           keyboard_tip,
15670                                           &model, &path, &iter))
15671     return FALSE;
15672
15673   gtk_tree_model_get_value (model, &iter,
15674                             tree_view->priv->tooltip_column, &value);
15675
15676   g_value_init (&transformed, G_TYPE_STRING);
15677
15678   if (!g_value_transform (&value, &transformed))
15679     {
15680       g_value_unset (&value);
15681       gtk_tree_path_free (path);
15682
15683       return FALSE;
15684     }
15685
15686   g_value_unset (&value);
15687
15688   if (!g_value_get_string (&transformed))
15689     {
15690       g_value_unset (&transformed);
15691       gtk_tree_path_free (path);
15692
15693       return FALSE;
15694     }
15695
15696   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15697   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15698
15699   gtk_tree_path_free (path);
15700   g_value_unset (&transformed);
15701
15702   return TRUE;
15703 }
15704
15705 /**
15706  * gtk_tree_view_set_tooltip_column:
15707  * @tree_view: a #GtkTreeView
15708  * @column: an integer, which is a valid column number for @tree_view's model
15709  *
15710  * If you only plan to have simple (text-only) tooltips on full rows, you
15711  * can use this function to have #GtkTreeView handle these automatically
15712  * for you. @column should be set to the column in @tree_view's model
15713  * containing the tooltip texts, or -1 to disable this feature.
15714  *
15715  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15716  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15717  *
15718  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15719  * so &amp;, &lt;, etc have to be escaped in the text.
15720  *
15721  * Since: 2.12
15722  */
15723 void
15724 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15725                                   gint         column)
15726 {
15727   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15728
15729   if (column == tree_view->priv->tooltip_column)
15730     return;
15731
15732   if (column == -1)
15733     {
15734       g_signal_handlers_disconnect_by_func (tree_view,
15735                                             gtk_tree_view_set_tooltip_query_cb,
15736                                             NULL);
15737       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15738     }
15739   else
15740     {
15741       if (tree_view->priv->tooltip_column == -1)
15742         {
15743           g_signal_connect (tree_view, "query-tooltip",
15744                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15745           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15746         }
15747     }
15748
15749   tree_view->priv->tooltip_column = column;
15750   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15751 }
15752
15753 /**
15754  * gtk_tree_view_get_tooltip_column:
15755  * @tree_view: a #GtkTreeView
15756  *
15757  * Returns the column of @tree_view's model which is being used for
15758  * displaying tooltips on @tree_view's rows.
15759  *
15760  * Return value: the index of the tooltip column that is currently being
15761  * used, or -1 if this is disabled.
15762  *
15763  * Since: 2.12
15764  */
15765 gint
15766 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15767 {
15768   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15769
15770   return tree_view->priv->tooltip_column;
15771 }