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 "gtkprivate.h"
  47 #include "gtkalias.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 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 402                                                          GtkWidget        *search_dialog,
 403                                                          gpointer          user_data);
 404 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 405                                                          GtkMenu          *menu,
 406                                                          gpointer          data);
 407 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 408                                                          GtkTreeView      *tree_view);
 409 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 410                                                          GtkTreeView      *tree_view);
 411 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 412 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 413                                                          gpointer          data);
 414 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 415                                                          GdkEventAny      *event,
 416                                                          GtkTreeView      *tree_view);
 417 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 418                                                          GdkEventButton   *event,
 419                                                          GtkTreeView      *tree_view);
 420 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 421                                                          GdkEventScroll   *event,
 422                                                          GtkTreeView      *tree_view);
 423 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 424                                                          GdkEventKey      *event,
 425                                                          GtkTreeView      *tree_view);
 426 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 427                                                          GtkTreeView      *tree_view,
 428                                                          gboolean          up);
 429 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 430                                                          gint              column,
 431                                                          const gchar      *key,
 432                                                          GtkTreeIter      *iter,
 433                                                          gpointer          search_data);
 434 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 435                                                          GtkTreeSelection *selection,
 436                                                          GtkTreeIter      *iter,
 437                                                          const gchar      *text,
 438                                                          gint             *count,
 439                                                          gint              n);
 440 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 441                                                          GtkTreeView      *tree_view);
 442 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 443                                                          GtkWidget        *child_widget,
 444                                                          gint              x,
 445                                                          gint              y,
 446                                                          gint              width,
 447                                                          gint              height);
 448 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 449                                                          GtkTreePath      *cursor_path);
 450 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 451                                               GtkTreeViewColumn *column,
 452                                               GtkTreePath       *path,
 453                                               GtkCellEditable   *cell_editable,
 454                                               GdkRectangle      *cell_area,
 455                                               GdkEvent          *event,
 456                                               guint              flags);
 457 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 458                                                          gboolean     cancel_editing);
 459 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 460                                                              gboolean     keybinding);
 461 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 462 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 463                                                          GtkTreeViewColumn *column,
 464                                                          gint               drop_position);
 465
 466 /* GtkBuildable */
 467 static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
 468                                                GtkBuilder  *builder,
 469                                                GObject     *child,
 470                                                const gchar *type);
 471 static void gtk_tree_view_buildable_init      (GtkBuildableIface *iface);
 472
 473
 474 static gboolean scroll_row_timeout                   (gpointer     data);
 475 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 476 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 477
 478 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 479
 480 \f
 481
 482 /* GType Methods
 483  */
 484
 485 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 486                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 487                                                 gtk_tree_view_buildable_init))
 488
 489 static void
 490 gtk_tree_view_class_init (GtkTreeViewClass *class)
 491 {
 492   GObjectClass *o_class;
 493   GtkObjectClass *object_class;
 494   GtkWidgetClass *widget_class;
 495   GtkContainerClass *container_class;
 496   GtkBindingSet *binding_set;
 497
 498   binding_set = gtk_binding_set_by_class (class);
 499
 500   o_class = (GObjectClass *) class;
 501   object_class = (GtkObjectClass *) class;
 502   widget_class = (GtkWidgetClass *) class;
 503   container_class = (GtkContainerClass *) class;
 504
 505   /* GObject signals */
 506   o_class->set_property = gtk_tree_view_set_property;
 507   o_class->get_property = gtk_tree_view_get_property;
 508   o_class->finalize = gtk_tree_view_finalize;
 509
 510   /* GtkObject signals */
 511   object_class->destroy = gtk_tree_view_destroy;
 512
 513   /* GtkWidget signals */
 514   widget_class->map = gtk_tree_view_map;
 515   widget_class->realize = gtk_tree_view_realize;
 516   widget_class->unrealize = gtk_tree_view_unrealize;
 517   widget_class->size_request = gtk_tree_view_size_request;
 518   widget_class->size_allocate = gtk_tree_view_size_allocate;
 519   widget_class->button_press_event = gtk_tree_view_button_press;
 520   widget_class->button_release_event = gtk_tree_view_button_release;
 521   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 522   /*widget_class->configure_event = gtk_tree_view_configure;*/
 523   widget_class->motion_notify_event = gtk_tree_view_motion;
 524   widget_class->expose_event = gtk_tree_view_expose;
 525   widget_class->key_press_event = gtk_tree_view_key_press;
 526   widget_class->key_release_event = gtk_tree_view_key_release;
 527   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 528   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 529   widget_class->focus_out_event = gtk_tree_view_focus_out;
 530   widget_class->drag_begin = gtk_tree_view_drag_begin;
 531   widget_class->drag_end = gtk_tree_view_drag_end;
 532   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 533   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 534   widget_class->drag_leave = gtk_tree_view_drag_leave;
 535   widget_class->drag_motion = gtk_tree_view_drag_motion;
 536   widget_class->drag_drop = gtk_tree_view_drag_drop;
 537   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 538   widget_class->focus = gtk_tree_view_focus;
 539   widget_class->grab_focus = gtk_tree_view_grab_focus;
 540   widget_class->style_set = gtk_tree_view_style_set;
 541   widget_class->grab_notify = gtk_tree_view_grab_notify;
 542   widget_class->state_changed = gtk_tree_view_state_changed;
 543
 544   /* GtkContainer signals */
 545   container_class->remove = gtk_tree_view_remove;
 546   container_class->forall = gtk_tree_view_forall;
 547   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 548
 549   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 550   class->move_cursor = gtk_tree_view_real_move_cursor;
 551   class->select_all = gtk_tree_view_real_select_all;
 552   class->unselect_all = gtk_tree_view_real_unselect_all;
 553   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 554   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 555   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 556   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 557   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 558
 559   /* Properties */
 560
 561   g_object_class_install_property (o_class,
 562                                    PROP_MODEL,
 563                                    g_param_spec_object ("model",
 564                                                         P_("TreeView Model"),
 565                                                         P_("The model for the tree view"),
 566                                                         GTK_TYPE_TREE_MODEL,
 567                                                         GTK_PARAM_READWRITE));
 568
 569   g_object_class_install_property (o_class,
 570                                    PROP_HADJUSTMENT,
 571                                    g_param_spec_object ("hadjustment",
 572                                                         P_("Horizontal Adjustment"),
 573                                                         P_("Horizontal Adjustment for the widget"),
 574                                                         GTK_TYPE_ADJUSTMENT,
 575                                                         GTK_PARAM_READWRITE));
 576
 577   g_object_class_install_property (o_class,
 578                                    PROP_VADJUSTMENT,
 579                                    g_param_spec_object ("vadjustment",
 580                                                         P_("Vertical Adjustment"),
 581                                                         P_("Vertical Adjustment for the widget"),
 582                                                         GTK_TYPE_ADJUSTMENT,
 583                                                         GTK_PARAM_READWRITE));
 584
 585   g_object_class_install_property (o_class,
 586                                    PROP_HEADERS_VISIBLE,
 587                                    g_param_spec_boolean ("headers-visible",
 588                                                          P_("Headers Visible"),
 589                                                          P_("Show the column header buttons"),
 590                                                          TRUE,
 591                                                          GTK_PARAM_READWRITE));
 592
 593   g_object_class_install_property (o_class,
 594                                    PROP_HEADERS_CLICKABLE,
 595                                    g_param_spec_boolean ("headers-clickable",
 596                                                          P_("Headers Clickable"),
 597                                                          P_("Column headers respond to click events"),
 598                                                          TRUE,
 599                                                          GTK_PARAM_READWRITE));
 600
 601   g_object_class_install_property (o_class,
 602                                    PROP_EXPANDER_COLUMN,
 603                                    g_param_spec_object ("expander-column",
 604                                                         P_("Expander Column"),
 605                                                         P_("Set the column for the expander column"),
 606                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 607                                                         GTK_PARAM_READWRITE));
 608
 609   g_object_class_install_property (o_class,
 610                                    PROP_REORDERABLE,
 611                                    g_param_spec_boolean ("reorderable",
 612                                                          P_("Reorderable"),
 613                                                          P_("View is reorderable"),
 614                                                          FALSE,
 615                                                          GTK_PARAM_READWRITE));
 616
 617   g_object_class_install_property (o_class,
 618                                    PROP_RULES_HINT,
 619                                    g_param_spec_boolean ("rules-hint",
 620                                                          P_("Rules Hint"),
 621                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 622                                                          FALSE,
 623                                                          GTK_PARAM_READWRITE));
 624
 625     g_object_class_install_property (o_class,
 626                                      PROP_ENABLE_SEARCH,
 627                                      g_param_spec_boolean ("enable-search",
 628                                                            P_("Enable Search"),
 629                                                            P_("View allows user to search through columns interactively"),
 630                                                            TRUE,
 631                                                            GTK_PARAM_READWRITE));
 632
 633     g_object_class_install_property (o_class,
 634                                      PROP_SEARCH_COLUMN,
 635                                      g_param_spec_int ("search-column",
 636                                                        P_("Search Column"),
 637                                                        P_("Model column to search through during interactive search"),
 638                                                        -1,
 639                                                        G_MAXINT,
 640                                                        -1,
 641                                                        GTK_PARAM_READWRITE));
 642
 643     /**
 644      * GtkTreeView:fixed-height-mode:
 645      *
 646      * Setting the ::fixed-height-mode property to %TRUE speeds up
 647      * #GtkTreeView by assuming that all rows have the same height.
 648      * Only enable this option if all rows are the same height.
 649      * Please see gtk_tree_view_set_fixed_height_mode() for more
 650      * information on this option.
 651      *
 652      * Since: 2.4
 653      **/
 654     g_object_class_install_property (o_class,
 655                                      PROP_FIXED_HEIGHT_MODE,
 656                                      g_param_spec_boolean ("fixed-height-mode",
 657                                                            P_("Fixed Height Mode"),
 658                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 659                                                            FALSE,
 660                                                            GTK_PARAM_READWRITE));
 661
 662     /**
 663      * GtkTreeView:hover-selection:
 664      *
 665      * Enables of disables the hover selection mode of @tree_view.
 666      * Hover selection makes the selected row follow the pointer.
 667      * Currently, this works only for the selection modes
 668      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 669      *
 670      * This mode is primarily intended for treeviews in popups, e.g.
 671      * in #GtkComboBox or #GtkEntryCompletion.
 672      *
 673      * Since: 2.6
 674      */
 675     g_object_class_install_property (o_class,
 676                                      PROP_HOVER_SELECTION,
 677                                      g_param_spec_boolean ("hover-selection",
 678                                                            P_("Hover Selection"),
 679                                                            P_("Whether the selection should follow the pointer"),
 680                                                            FALSE,
 681                                                            GTK_PARAM_READWRITE));
 682
 683     /**
 684      * GtkTreeView:hover-expand:
 685      *
 686      * Enables of disables the hover expansion mode of @tree_view.
 687      * Hover expansion makes rows expand or collapse if the pointer moves
 688      * over them.
 689      *
 690      * This mode is primarily intended for treeviews in popups, e.g.
 691      * in #GtkComboBox or #GtkEntryCompletion.
 692      *
 693      * Since: 2.6
 694      */
 695     g_object_class_install_property (o_class,
 696                                      PROP_HOVER_EXPAND,
 697                                      g_param_spec_boolean ("hover-expand",
 698                                                            P_("Hover Expand"),
 699                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 700                                                            FALSE,
 701                                                            GTK_PARAM_READWRITE));
 702
 703     /**
 704      * GtkTreeView:show-expanders:
 705      *
 706      * %TRUE if the view has expanders.
 707      *
 708      * Since: 2.12
 709      */
 710     g_object_class_install_property (o_class,
 711                                      PROP_SHOW_EXPANDERS,
 712                                      g_param_spec_boolean ("show-expanders",
 713                                                            P_("Show Expanders"),
 714                                                            P_("View has expanders"),
 715                                                            TRUE,
 716                                                            GTK_PARAM_READWRITE));
 717
 718     /**
 719      * GtkTreeView:level-indentation:
 720      *
 721      * Extra indentation for each level.
 722      *
 723      * Since: 2.12
 724      */
 725     g_object_class_install_property (o_class,
 726                                      PROP_LEVEL_INDENTATION,
 727                                      g_param_spec_int ("level-indentation",
 728                                                        P_("Level Indentation"),
 729                                                        P_("Extra indentation for each level"),
 730                                                        0,
 731                                                        G_MAXINT,
 732                                                        0,
 733                                                        GTK_PARAM_READWRITE));
 734
 735     g_object_class_install_property (o_class,
 736                                      PROP_RUBBER_BANDING,
 737                                      g_param_spec_boolean ("rubber-banding",
 738                                                            P_("Rubber Banding"),
 739                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 740                                                            FALSE,
 741                                                            GTK_PARAM_READWRITE));
 742
 743     g_object_class_install_property (o_class,
 744                                      PROP_ENABLE_GRID_LINES,
 745                                      g_param_spec_enum ("enable-grid-lines",
 746                                                         P_("Enable Grid Lines"),
 747                                                         P_("Whether grid lines should be drawn in the tree view"),
 748                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 749                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 750                                                         GTK_PARAM_READWRITE));
 751
 752     g_object_class_install_property (o_class,
 753                                      PROP_ENABLE_TREE_LINES,
 754                                      g_param_spec_boolean ("enable-tree-lines",
 755                                                            P_("Enable Tree Lines"),
 756                                                            P_("Whether tree lines should be drawn in the tree view"),
 757                                                            FALSE,
 758                                                            GTK_PARAM_READWRITE));
 759
 760     g_object_class_install_property (o_class,
 761                                      PROP_TOOLTIP_COLUMN,
 762                                      g_param_spec_int ("tooltip-column",
 763                                                        P_("Tooltip Column"),
 764                                                        P_("The column in the model containing the tooltip texts for the rows"),
 765                                                        -1,
 766                                                        G_MAXINT,
 767                                                        -1,
 768                                                        GTK_PARAM_READWRITE));
 769
 770   /* Style properties */
 771 #define _TREE_VIEW_EXPANDER_SIZE 12
 772 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 773 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 774
 775   gtk_widget_class_install_style_property (widget_class,
 776                                            g_param_spec_int ("expander-size",
 777                                                              P_("Expander Size"),
 778                                                              P_("Size of the expander arrow"),
 779                                                              0,
 780                                                              G_MAXINT,
 781                                                              _TREE_VIEW_EXPANDER_SIZE,
 782                                                              GTK_PARAM_READABLE));
 783
 784   gtk_widget_class_install_style_property (widget_class,
 785                                            g_param_spec_int ("vertical-separator",
 786                                                              P_("Vertical Separator Width"),
 787                                                              P_("Vertical space between cells.  Must be an even number"),
 788                                                              0,
 789                                                              G_MAXINT,
 790                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 791                                                              GTK_PARAM_READABLE));
 792
 793   gtk_widget_class_install_style_property (widget_class,
 794                                            g_param_spec_int ("horizontal-separator",
 795                                                              P_("Horizontal Separator Width"),
 796                                                              P_("Horizontal space between cells.  Must be an even number"),
 797                                                              0,
 798                                                              G_MAXINT,
 799                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 800                                                              GTK_PARAM_READABLE));
 801
 802   gtk_widget_class_install_style_property (widget_class,
 803                                            g_param_spec_boolean ("allow-rules",
 804                                                                  P_("Allow Rules"),
 805                                                                  P_("Allow drawing of alternating color rows"),
 806                                                                  TRUE,
 807                                                                  GTK_PARAM_READABLE));
 808
 809   gtk_widget_class_install_style_property (widget_class,
 810                                            g_param_spec_boolean ("indent-expanders",
 811                                                                  P_("Indent Expanders"),
 812                                                                  P_("Make the expanders indented"),
 813                                                                  TRUE,
 814                                                                  GTK_PARAM_READABLE));
 815
 816   gtk_widget_class_install_style_property (widget_class,
 817                                            g_param_spec_boxed ("even-row-color",
 818                                                                P_("Even Row Color"),
 819                                                                P_("Color to use for even rows"),
 820                                                                GDK_TYPE_COLOR,
 821                                                                GTK_PARAM_READABLE));
 822
 823   gtk_widget_class_install_style_property (widget_class,
 824                                            g_param_spec_boxed ("odd-row-color",
 825                                                                P_("Odd Row Color"),
 826                                                                P_("Color to use for odd rows"),
 827                                                                GDK_TYPE_COLOR,
 828                                                                GTK_PARAM_READABLE));
 829
 830   gtk_widget_class_install_style_property (widget_class,
 831                                            g_param_spec_boolean ("row-ending-details",
 832                                                                  P_("Row Ending details"),
 833                                                                  P_("Enable extended row background theming"),
 834                                                                  FALSE,
 835                                                                  GTK_PARAM_READABLE));
 836
 837   gtk_widget_class_install_style_property (widget_class,
 838                                            g_param_spec_int ("grid-line-width",
 839                                                              P_("Grid line width"),
 840                                                              P_("Width, in pixels, of the tree view grid lines"),
 841                                                              0, G_MAXINT, 1,
 842                                                              GTK_PARAM_READABLE));
 843
 844   gtk_widget_class_install_style_property (widget_class,
 845                                            g_param_spec_int ("tree-line-width",
 846                                                              P_("Tree line width"),
 847                                                              P_("Width, in pixels, of the tree view lines"),
 848                                                              0, G_MAXINT, 1,
 849                                                              GTK_PARAM_READABLE));
 850
 851   gtk_widget_class_install_style_property (widget_class,
 852                                            g_param_spec_string ("grid-line-pattern",
 853                                                                 P_("Grid line pattern"),
 854                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 855                                                                 "\1\1",
 856                                                                 GTK_PARAM_READABLE));
 857
 858   gtk_widget_class_install_style_property (widget_class,
 859                                            g_param_spec_string ("tree-line-pattern",
 860                                                                 P_("Tree line pattern"),
 861                                                                 P_("Dash pattern used to draw the tree view lines"),
 862                                                                 "\1\1",
 863                                                                 GTK_PARAM_READABLE));
 864
 865   /* Signals */
 866   /**
 867    * GtkTreeView::set-scroll-adjustments
 868    * @horizontal: the horizontal #GtkAdjustment
 869    * @vertical: the vertical #GtkAdjustment
 870    *
 871    * Set the scroll adjustments for the tree view. Usually scrolled containers
 872    * like #GtkScrolledWindow will emit this signal to connect two instances
 873    * of #GtkScrollbar to the scroll directions of the #GtkTreeView.
 874    */
 875   widget_class->set_scroll_adjustments_signal =
 876     g_signal_new (I_("set-scroll-adjustments"),
 877                   G_TYPE_FROM_CLASS (o_class),
 878                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 879                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 880                   NULL, NULL,
 881                   _gtk_marshal_VOID__OBJECT_OBJECT,
 882                   G_TYPE_NONE, 2,
 883                   GTK_TYPE_ADJUSTMENT,
 884                   GTK_TYPE_ADJUSTMENT);
 885
 886   /**
 887    * GtkTreeView::row-activated:
 888    * @tree_view: the object on which the signal is emitted
 889    * @path: the #GtkTreePath for the activated row
 890    * @column: the #GtkTreeViewColumn in which the activation occurred
 891    *
 892    * The "row-activated" signal is emitted when the method
 893    * gtk_tree_view_row_activated() is called or the user double clicks
 894    * a treeview row. It is also emitted when a non-editable row is
 895    * selected and one of the keys: Space, Shift+Space, Return or
 896    * Enter is pressed.
 897    *
 898    * For selection handling refer to the <link linkend="TreeWidget">tree
 899    * widget conceptual overview</link> as well as #GtkTreeSelection.
 900    */
 901   tree_view_signals[ROW_ACTIVATED] =
 902     g_signal_new (I_("row-activated"),
 903                   G_TYPE_FROM_CLASS (o_class),
 904                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 905                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 906                   NULL, NULL,
 907                   _gtk_marshal_VOID__BOXED_OBJECT,
 908                   G_TYPE_NONE, 2,
 909                   GTK_TYPE_TREE_PATH,
 910                   GTK_TYPE_TREE_VIEW_COLUMN);
 911
 912   /**
 913    * GtkTreeView::test-expand-row:
 914    * @tree_view: the object on which the signal is emitted
 915    * @iter: the tree iter of the row to expand
 916    * @path: a tree path that points to the row
 917    *
 918    * The given row is about to be expanded (show its children nodes). Use this
 919    * signal if you need to control the expandability of individual rows.
 920    *
 921    * Returns: %FALSE to allow expansion, %TRUE to reject
 922    */
 923   tree_view_signals[TEST_EXPAND_ROW] =
 924     g_signal_new (I_("test-expand-row"),
 925                   G_TYPE_FROM_CLASS (o_class),
 926                   G_SIGNAL_RUN_LAST,
 927                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 928                   _gtk_boolean_handled_accumulator, NULL,
 929                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 930                   G_TYPE_BOOLEAN, 2,
 931                   GTK_TYPE_TREE_ITER,
 932                   GTK_TYPE_TREE_PATH);
 933
 934   /**
 935    * GtkTreeView::test-collapse-row:
 936    * @tree_view: the object on which the signal is emitted
 937    * @iter: the tree iter of the row to collapse
 938    * @path: a tree path that points to the row
 939    *
 940    * The given row is about to be collapsed (hide its children nodes). Use this
 941    * signal if you need to control the collapsibility of individual rows.
 942    *
 943    * Returns: %FALSE to allow collapsing, %TRUE to reject
 944    */
 945   tree_view_signals[TEST_COLLAPSE_ROW] =
 946     g_signal_new (I_("test-collapse-row"),
 947                   G_TYPE_FROM_CLASS (o_class),
 948                   G_SIGNAL_RUN_LAST,
 949                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 950                   _gtk_boolean_handled_accumulator, NULL,
 951                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 952                   G_TYPE_BOOLEAN, 2,
 953                   GTK_TYPE_TREE_ITER,
 954                   GTK_TYPE_TREE_PATH);
 955
 956   /**
 957    * GtkTreeView::row-expanded:
 958    * @tree_view: the object on which the signal is emitted
 959    * @iter: the tree iter of the expanded row
 960    * @path: a tree path that points to the row
 961    *
 962    * The given row has been expanded (child nodes are shown).
 963    */
 964   tree_view_signals[ROW_EXPANDED] =
 965     g_signal_new (I_("row-expanded"),
 966                   G_TYPE_FROM_CLASS (o_class),
 967                   G_SIGNAL_RUN_LAST,
 968                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 969                   NULL, NULL,
 970                   _gtk_marshal_VOID__BOXED_BOXED,
 971                   G_TYPE_NONE, 2,
 972                   GTK_TYPE_TREE_ITER,
 973                   GTK_TYPE_TREE_PATH);
 974
 975   /**
 976    * GtkTreeView::row-collapsed:
 977    * @tree_view: the object on which the signal is emitted
 978    * @iter: the tree iter of the collapsed row
 979    * @path: a tree path that points to the row
 980    *
 981    * The given row has been collapsed (child nodes are hidden).
 982    */
 983   tree_view_signals[ROW_COLLAPSED] =
 984     g_signal_new (I_("row-collapsed"),
 985                   G_TYPE_FROM_CLASS (o_class),
 986                   G_SIGNAL_RUN_LAST,
 987                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 988                   NULL, NULL,
 989                   _gtk_marshal_VOID__BOXED_BOXED,
 990                   G_TYPE_NONE, 2,
 991                   GTK_TYPE_TREE_ITER,
 992                   GTK_TYPE_TREE_PATH);
 993
 994   /**
 995    * GtkTreeView::columns-changed:
 996    * @tree_view: the object on which the signal is emitted
 997    *
 998    * The number of columns of the treeview has changed.
 999    */
1000   tree_view_signals[COLUMNS_CHANGED] =
1001     g_signal_new (I_("columns-changed"),
1002                   G_TYPE_FROM_CLASS (o_class),
1003                   G_SIGNAL_RUN_LAST,
1004                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
1005                   NULL, NULL,
1006                   _gtk_marshal_VOID__VOID,
1007                   G_TYPE_NONE, 0);
1008
1009   /**
1010    * GtkTreeView::cursor-changed:
1011    * @tree_view: the object on which the signal is emitted
1012    *
1013    * The position of the cursor (focused cell) has changed.
1014    */
1015   tree_view_signals[CURSOR_CHANGED] =
1016     g_signal_new (I_("cursor-changed"),
1017                   G_TYPE_FROM_CLASS (o_class),
1018                   G_SIGNAL_RUN_LAST,
1019                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1020                   NULL, NULL,
1021                   _gtk_marshal_VOID__VOID,
1022                   G_TYPE_NONE, 0);
1023
1024   tree_view_signals[MOVE_CURSOR] =
1025     g_signal_new (I_("move-cursor"),
1026                   G_TYPE_FROM_CLASS (object_class),
1027                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1028                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1029                   NULL, NULL,
1030                   _gtk_marshal_BOOLEAN__ENUM_INT,
1031                   G_TYPE_BOOLEAN, 2,
1032                   GTK_TYPE_MOVEMENT_STEP,
1033                   G_TYPE_INT);
1034
1035   tree_view_signals[SELECT_ALL] =
1036     g_signal_new (I_("select-all"),
1037                   G_TYPE_FROM_CLASS (object_class),
1038                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1039                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1040                   NULL, NULL,
1041                   _gtk_marshal_BOOLEAN__VOID,
1042                   G_TYPE_BOOLEAN, 0);
1043
1044   tree_view_signals[UNSELECT_ALL] =
1045     g_signal_new (I_("unselect-all"),
1046                   G_TYPE_FROM_CLASS (object_class),
1047                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1048                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1049                   NULL, NULL,
1050                   _gtk_marshal_BOOLEAN__VOID,
1051                   G_TYPE_BOOLEAN, 0);
1052
1053   tree_view_signals[SELECT_CURSOR_ROW] =
1054     g_signal_new (I_("select-cursor-row"),
1055                   G_TYPE_FROM_CLASS (object_class),
1056                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1057                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1058                   NULL, NULL,
1059                   _gtk_marshal_BOOLEAN__BOOLEAN,
1060                   G_TYPE_BOOLEAN, 1,
1061                   G_TYPE_BOOLEAN);
1062
1063   tree_view_signals[TOGGLE_CURSOR_ROW] =
1064     g_signal_new (I_("toggle-cursor-row"),
1065                   G_TYPE_FROM_CLASS (object_class),
1066                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1067                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1068                   NULL, NULL,
1069                   _gtk_marshal_BOOLEAN__VOID,
1070                   G_TYPE_BOOLEAN, 0);
1071
1072   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1073     g_signal_new (I_("expand-collapse-cursor-row"),
1074                   G_TYPE_FROM_CLASS (object_class),
1075                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1076                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1077                   NULL, NULL,
1078                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1079                   G_TYPE_BOOLEAN, 3,
1080                   G_TYPE_BOOLEAN,
1081                   G_TYPE_BOOLEAN,
1082                   G_TYPE_BOOLEAN);
1083
1084   tree_view_signals[SELECT_CURSOR_PARENT] =
1085     g_signal_new (I_("select-cursor-parent"),
1086                   G_TYPE_FROM_CLASS (object_class),
1087                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1088                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1089                   NULL, NULL,
1090                   _gtk_marshal_BOOLEAN__VOID,
1091                   G_TYPE_BOOLEAN, 0);
1092
1093   tree_view_signals[START_INTERACTIVE_SEARCH] =
1094     g_signal_new (I_("start-interactive-search"),
1095                   G_TYPE_FROM_CLASS (object_class),
1096                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1097                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1098                   NULL, NULL,
1099                   _gtk_marshal_BOOLEAN__VOID,
1100                   G_TYPE_BOOLEAN, 0);
1101
1102   /* Key bindings */
1103   gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0, TRUE,
1104                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1105   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0, TRUE,
1106                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1107
1108   gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0, TRUE,
1109                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1110   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0, TRUE,
1111                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1112
1113   gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, FALSE,
1114                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1115
1116   gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, FALSE,
1117                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1118
1119   gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0, TRUE,
1120                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1121   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0, TRUE,
1122                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1123
1124   gtk_tree_view_add_move_binding (binding_set, GDK_End, 0, TRUE,
1125                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1126   gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0, TRUE,
1127                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1128
1129   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0, TRUE,
1130                                   GTK_MOVEMENT_PAGES, -1);
1131   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, TRUE,
1132                                   GTK_MOVEMENT_PAGES, -1);
1133
1134   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0, TRUE,
1135                                   GTK_MOVEMENT_PAGES, 1);
1136   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, TRUE,
1137                                   GTK_MOVEMENT_PAGES, 1);
1138
1139
1140   gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move-cursor", 2,
1141                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1142                                 G_TYPE_INT, 1);
1143
1144   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move-cursor", 2,
1145                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1146                                 G_TYPE_INT, -1);
1147
1148   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move-cursor", 2,
1149                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1150                                 G_TYPE_INT, 1);
1151
1152   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move-cursor", 2,
1153                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1154                                 G_TYPE_INT, -1);
1155
1156   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1157                                 "move-cursor", 2,
1158                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1159                                 G_TYPE_INT, 1);
1160
1161   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1162                                 "move-cursor", 2,
1163                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1164                                 G_TYPE_INT, -1);
1165
1166   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1167                                 "move-cursor", 2,
1168                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1169                                 G_TYPE_INT, 1);
1170
1171   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1172                                 "move-cursor", 2,
1173                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1174                                 G_TYPE_INT, -1);
1175
1176   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1177   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1178
1179   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select-all", 0);
1180   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select-all", 0);
1181
1182   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
1183   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
1184
1185   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1186                                 G_TYPE_BOOLEAN, TRUE);
1187   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1188                                 G_TYPE_BOOLEAN, TRUE);
1189
1190   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select-cursor-row", 1,
1191                                 G_TYPE_BOOLEAN, TRUE);
1192   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "select-cursor-row", 1,
1193                                 G_TYPE_BOOLEAN, TRUE);
1194   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select-cursor-row", 1,
1195                                 G_TYPE_BOOLEAN, TRUE);
1196   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select-cursor-row", 1,
1197                                 G_TYPE_BOOLEAN, TRUE);
1198   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select-cursor-row", 1,
1199                                 G_TYPE_BOOLEAN, TRUE);
1200
1201   /* expand and collapse rows */
1202   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand-collapse-cursor-row", 3,
1203                                 G_TYPE_BOOLEAN, TRUE,
1204                                 G_TYPE_BOOLEAN, TRUE,
1205                                 G_TYPE_BOOLEAN, FALSE);
1206
1207   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1208                                 "expand-collapse-cursor-row", 3,
1209                                 G_TYPE_BOOLEAN, TRUE,
1210                                 G_TYPE_BOOLEAN, TRUE,
1211                                 G_TYPE_BOOLEAN, TRUE);
1212   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1213                                 "expand-collapse-cursor-row", 3,
1214                                 G_TYPE_BOOLEAN, TRUE,
1215                                 G_TYPE_BOOLEAN, TRUE,
1216                                 G_TYPE_BOOLEAN, TRUE);
1217
1218   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1219                                 "expand-collapse-cursor-row", 3,
1220                                 G_TYPE_BOOLEAN, TRUE,
1221                                 G_TYPE_BOOLEAN, FALSE,
1222                                 G_TYPE_BOOLEAN, FALSE);
1223   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1224                                 "expand-collapse-cursor-row", 3,
1225                                 G_TYPE_BOOLEAN, TRUE,
1226                                 G_TYPE_BOOLEAN, FALSE,
1227                                 G_TYPE_BOOLEAN, FALSE);
1228
1229   /* Not doable on US keyboards */
1230   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1231                                 G_TYPE_BOOLEAN, TRUE,
1232                                 G_TYPE_BOOLEAN, TRUE,
1233                                 G_TYPE_BOOLEAN, TRUE);
1234   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand-collapse-cursor-row", 3,
1235                                 G_TYPE_BOOLEAN, TRUE,
1236                                 G_TYPE_BOOLEAN, TRUE,
1237                                 G_TYPE_BOOLEAN, FALSE);
1238   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1239                                 G_TYPE_BOOLEAN, TRUE,
1240                                 G_TYPE_BOOLEAN, TRUE,
1241                                 G_TYPE_BOOLEAN, TRUE);
1242   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1243                                 G_TYPE_BOOLEAN, TRUE,
1244                                 G_TYPE_BOOLEAN, TRUE,
1245                                 G_TYPE_BOOLEAN, TRUE);
1246   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_SHIFT_MASK,
1247                                 "expand-collapse-cursor-row", 3,
1248                                 G_TYPE_BOOLEAN, FALSE,
1249                                 G_TYPE_BOOLEAN, TRUE,
1250                                 G_TYPE_BOOLEAN, TRUE);
1251   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_SHIFT_MASK,
1252                                 "expand-collapse-cursor-row", 3,
1253                                 G_TYPE_BOOLEAN, FALSE,
1254                                 G_TYPE_BOOLEAN, TRUE,
1255                                 G_TYPE_BOOLEAN, TRUE);
1256   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1257                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1258                                 "expand-collapse-cursor-row", 3,
1259                                 G_TYPE_BOOLEAN, FALSE,
1260                                 G_TYPE_BOOLEAN, TRUE,
1261                                 G_TYPE_BOOLEAN, TRUE);
1262   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1263                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1264                                 "expand-collapse-cursor-row", 3,
1265                                 G_TYPE_BOOLEAN, FALSE,
1266                                 G_TYPE_BOOLEAN, TRUE,
1267                                 G_TYPE_BOOLEAN, TRUE);
1268
1269   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand-collapse-cursor-row", 3,
1270                                 G_TYPE_BOOLEAN, TRUE,
1271                                 G_TYPE_BOOLEAN, FALSE,
1272                                 G_TYPE_BOOLEAN, FALSE);
1273   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1274                                 G_TYPE_BOOLEAN, TRUE,
1275                                 G_TYPE_BOOLEAN, FALSE,
1276                                 G_TYPE_BOOLEAN, TRUE);
1277   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
1278                                 G_TYPE_BOOLEAN, TRUE,
1279                                 G_TYPE_BOOLEAN, FALSE,
1280                                 G_TYPE_BOOLEAN, FALSE);
1281   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1282                                 G_TYPE_BOOLEAN, TRUE,
1283                                 G_TYPE_BOOLEAN, FALSE,
1284                                 G_TYPE_BOOLEAN, TRUE);
1285   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
1286                                 "expand-collapse-cursor-row", 3,
1287                                 G_TYPE_BOOLEAN, FALSE,
1288                                 G_TYPE_BOOLEAN, FALSE,
1289                                 G_TYPE_BOOLEAN, TRUE);
1290   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
1291                                 "expand-collapse-cursor-row", 3,
1292                                 G_TYPE_BOOLEAN, FALSE,
1293                                 G_TYPE_BOOLEAN, FALSE,
1294                                 G_TYPE_BOOLEAN, TRUE);
1295   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1296                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1297                                 "expand-collapse-cursor-row", 3,
1298                                 G_TYPE_BOOLEAN, FALSE,
1299                                 G_TYPE_BOOLEAN, FALSE,
1300                                 G_TYPE_BOOLEAN, TRUE);
1301   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
1302                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1303                                 "expand-collapse-cursor-row", 3,
1304                                 G_TYPE_BOOLEAN, FALSE,
1305                                 G_TYPE_BOOLEAN, FALSE,
1306                                 G_TYPE_BOOLEAN, TRUE);
1307
1308   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select-cursor-parent", 0);
1309   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
1310
1311   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
1312
1313   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
1314
1315   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1316 }
1317
1318 static void
1319 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1320 {
1321   iface->add_child = gtk_tree_view_buildable_add_child;
1322 }
1323
1324 static void
1325 gtk_tree_view_init (GtkTreeView *tree_view)
1326 {
1327   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1328
1329   gtk_widget_set_can_focus (GTK_WIDGET (tree_view), TRUE);
1330   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1331
1332   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1333                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1334                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1335
1336   /* We need some padding */
1337   tree_view->priv->dy = 0;
1338   tree_view->priv->cursor_offset = 0;
1339   tree_view->priv->n_columns = 0;
1340   tree_view->priv->header_height = 1;
1341   tree_view->priv->x_drag = 0;
1342   tree_view->priv->drag_pos = -1;
1343   tree_view->priv->header_has_focus = FALSE;
1344   tree_view->priv->pressed_button = -1;
1345   tree_view->priv->press_start_x = -1;
1346   tree_view->priv->press_start_y = -1;
1347   tree_view->priv->reorderable = FALSE;
1348   tree_view->priv->presize_handler_timer = 0;
1349   tree_view->priv->scroll_sync_timer = 0;
1350   tree_view->priv->fixed_height = -1;
1351   tree_view->priv->fixed_height_mode = FALSE;
1352   tree_view->priv->fixed_height_check = 0;
1353   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1354   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1355   tree_view->priv->enable_search = TRUE;
1356   tree_view->priv->search_column = -1;
1357   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1358   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1359   tree_view->priv->search_custom_entry_set = FALSE;
1360   tree_view->priv->typeselect_flush_timeout = 0;
1361   tree_view->priv->init_hadjust_value = TRUE;
1362   tree_view->priv->width = 0;
1363
1364   tree_view->priv->hover_selection = FALSE;
1365   tree_view->priv->hover_expand = FALSE;
1366
1367   tree_view->priv->level_indentation = 0;
1368
1369   tree_view->priv->rubber_banding_enable = FALSE;
1370
1371   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1372   tree_view->priv->tree_lines_enabled = FALSE;
1373
1374   tree_view->priv->tooltip_column = -1;
1375
1376   tree_view->priv->post_validation_flag = FALSE;
1377
1378   tree_view->priv->last_button_x = -1;
1379   tree_view->priv->last_button_y = -1;
1380
1381   tree_view->priv->event_last_x = -10000;
1382   tree_view->priv->event_last_y = -10000;
1383 }
1384
1385 \f
1386
1387 /* GObject Methods
1388  */
1389
1390 static void
1391 gtk_tree_view_set_property (GObject         *object,
1392                             guint            prop_id,
1393                             const GValue    *value,
1394                             GParamSpec      *pspec)
1395 {
1396   GtkTreeView *tree_view;
1397
1398   tree_view = GTK_TREE_VIEW (object);
1399
1400   switch (prop_id)
1401     {
1402     case PROP_MODEL:
1403       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1404       break;
1405     case PROP_HADJUSTMENT:
1406       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1407       break;
1408     case PROP_VADJUSTMENT:
1409       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1410       break;
1411     case PROP_HEADERS_VISIBLE:
1412       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1413       break;
1414     case PROP_HEADERS_CLICKABLE:
1415       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1416       break;
1417     case PROP_EXPANDER_COLUMN:
1418       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1419       break;
1420     case PROP_REORDERABLE:
1421       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1422       break;
1423     case PROP_RULES_HINT:
1424       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1425       break;
1426     case PROP_ENABLE_SEARCH:
1427       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1428       break;
1429     case PROP_SEARCH_COLUMN:
1430       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1431       break;
1432     case PROP_FIXED_HEIGHT_MODE:
1433       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1434       break;
1435     case PROP_HOVER_SELECTION:
1436       tree_view->priv->hover_selection = g_value_get_boolean (value);
1437       break;
1438     case PROP_HOVER_EXPAND:
1439       tree_view->priv->hover_expand = g_value_get_boolean (value);
1440       break;
1441     case PROP_SHOW_EXPANDERS:
1442       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1443       break;
1444     case PROP_LEVEL_INDENTATION:
1445       tree_view->priv->level_indentation = g_value_get_int (value);
1446       break;
1447     case PROP_RUBBER_BANDING:
1448       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1449       break;
1450     case PROP_ENABLE_GRID_LINES:
1451       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1452       break;
1453     case PROP_ENABLE_TREE_LINES:
1454       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1455       break;
1456     case PROP_TOOLTIP_COLUMN:
1457       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1458       break;
1459     default:
1460       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1461       break;
1462     }
1463 }
1464
1465 static void
1466 gtk_tree_view_get_property (GObject    *object,
1467                             guint       prop_id,
1468                             GValue     *value,
1469                             GParamSpec *pspec)
1470 {
1471   GtkTreeView *tree_view;
1472
1473   tree_view = GTK_TREE_VIEW (object);
1474
1475   switch (prop_id)
1476     {
1477     case PROP_MODEL:
1478       g_value_set_object (value, tree_view->priv->model);
1479       break;
1480     case PROP_HADJUSTMENT:
1481       g_value_set_object (value, tree_view->priv->hadjustment);
1482       break;
1483     case PROP_VADJUSTMENT:
1484       g_value_set_object (value, tree_view->priv->vadjustment);
1485       break;
1486     case PROP_HEADERS_VISIBLE:
1487       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1488       break;
1489     case PROP_HEADERS_CLICKABLE:
1490       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1491       break;
1492     case PROP_EXPANDER_COLUMN:
1493       g_value_set_object (value, tree_view->priv->expander_column);
1494       break;
1495     case PROP_REORDERABLE:
1496       g_value_set_boolean (value, tree_view->priv->reorderable);
1497       break;
1498     case PROP_RULES_HINT:
1499       g_value_set_boolean (value, tree_view->priv->has_rules);
1500       break;
1501     case PROP_ENABLE_SEARCH:
1502       g_value_set_boolean (value, tree_view->priv->enable_search);
1503       break;
1504     case PROP_SEARCH_COLUMN:
1505       g_value_set_int (value, tree_view->priv->search_column);
1506       break;
1507     case PROP_FIXED_HEIGHT_MODE:
1508       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1509       break;
1510     case PROP_HOVER_SELECTION:
1511       g_value_set_boolean (value, tree_view->priv->hover_selection);
1512       break;
1513     case PROP_HOVER_EXPAND:
1514       g_value_set_boolean (value, tree_view->priv->hover_expand);
1515       break;
1516     case PROP_SHOW_EXPANDERS:
1517       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1518       break;
1519     case PROP_LEVEL_INDENTATION:
1520       g_value_set_int (value, tree_view->priv->level_indentation);
1521       break;
1522     case PROP_RUBBER_BANDING:
1523       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1524       break;
1525     case PROP_ENABLE_GRID_LINES:
1526       g_value_set_enum (value, tree_view->priv->grid_lines);
1527       break;
1528     case PROP_ENABLE_TREE_LINES:
1529       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1530       break;
1531     case PROP_TOOLTIP_COLUMN:
1532       g_value_set_int (value, tree_view->priv->tooltip_column);
1533       break;
1534     default:
1535       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1536       break;
1537     }
1538 }
1539
1540 static void
1541 gtk_tree_view_finalize (GObject *object)
1542 {
1543   G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
1544 }
1545
1546 \f
1547
1548 static void
1549 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1550                                    GtkBuilder  *builder,
1551                                    GObject     *child,
1552                                    const gchar *type)
1553 {
1554   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1555 }
1556
1557 /* GtkObject Methods
1558  */
1559
1560 static void
1561 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1562 {
1563   _gtk_rbtree_free (tree_view->priv->tree);
1564
1565   tree_view->priv->tree = NULL;
1566   tree_view->priv->button_pressed_node = NULL;
1567   tree_view->priv->button_pressed_tree = NULL;
1568   tree_view->priv->prelight_tree = NULL;
1569   tree_view->priv->prelight_node = NULL;
1570   tree_view->priv->expanded_collapsed_node = NULL;
1571   tree_view->priv->expanded_collapsed_tree = NULL;
1572 }
1573
1574 static void
1575 gtk_tree_view_destroy (GtkObject *object)
1576 {
1577   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1578   GList *list;
1579
1580   gtk_tree_view_stop_editing (tree_view, TRUE);
1581
1582   if (tree_view->priv->columns != NULL)
1583     {
1584       list = tree_view->priv->columns;
1585       while (list)
1586         {
1587           GtkTreeViewColumn *column;
1588           column = GTK_TREE_VIEW_COLUMN (list->data);
1589           list = list->next;
1590           gtk_tree_view_remove_column (tree_view, column);
1591         }
1592       tree_view->priv->columns = NULL;
1593     }
1594
1595   if (tree_view->priv->tree != NULL)
1596     {
1597       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1598
1599       gtk_tree_view_free_rbtree (tree_view);
1600     }
1601
1602   if (tree_view->priv->selection != NULL)
1603     {
1604       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1605       g_object_unref (tree_view->priv->selection);
1606       tree_view->priv->selection = NULL;
1607     }
1608
1609   if (tree_view->priv->scroll_to_path != NULL)
1610     {
1611       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1612       tree_view->priv->scroll_to_path = NULL;
1613     }
1614
1615   if (tree_view->priv->drag_dest_row != NULL)
1616     {
1617       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1618       tree_view->priv->drag_dest_row = NULL;
1619     }
1620
1621   if (tree_view->priv->top_row != NULL)
1622     {
1623       gtk_tree_row_reference_free (tree_view->priv->top_row);
1624       tree_view->priv->top_row = NULL;
1625     }
1626
1627   if (tree_view->priv->column_drop_func_data &&
1628       tree_view->priv->column_drop_func_data_destroy)
1629     {
1630       tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
1631       tree_view->priv->column_drop_func_data = NULL;
1632     }
1633
1634   if (tree_view->priv->destroy_count_destroy &&
1635       tree_view->priv->destroy_count_data)
1636     {
1637       tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
1638       tree_view->priv->destroy_count_data = NULL;
1639     }
1640
1641   gtk_tree_row_reference_free (tree_view->priv->cursor);
1642   tree_view->priv->cursor = NULL;
1643
1644   gtk_tree_row_reference_free (tree_view->priv->anchor);
1645   tree_view->priv->anchor = NULL;
1646
1647   /* destroy interactive search dialog */
1648   if (tree_view->priv->search_window)
1649     {
1650       gtk_widget_destroy (tree_view->priv->search_window);
1651       tree_view->priv->search_window = NULL;
1652       tree_view->priv->search_entry = NULL;
1653       if (tree_view->priv->typeselect_flush_timeout)
1654         {
1655           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1656           tree_view->priv->typeselect_flush_timeout = 0;
1657         }
1658     }
1659
1660   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1661     {
1662       tree_view->priv->search_destroy (tree_view->priv->search_user_data);
1663       tree_view->priv->search_user_data = NULL;
1664     }
1665
1666   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1667     {
1668       tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
1669       tree_view->priv->search_position_user_data = NULL;
1670     }
1671
1672   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1673     {
1674       tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
1675       tree_view->priv->row_separator_data = NULL;
1676     }
1677
1678   gtk_tree_view_set_model (tree_view, NULL);
1679
1680   if (tree_view->priv->hadjustment)
1681     {
1682       g_object_unref (tree_view->priv->hadjustment);
1683       tree_view->priv->hadjustment = NULL;
1684     }
1685   if (tree_view->priv->vadjustment)
1686     {
1687       g_object_unref (tree_view->priv->vadjustment);
1688       tree_view->priv->vadjustment = NULL;
1689     }
1690
1691   GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy (object);
1692 }
1693
1694 \f
1695
1696 /* GtkWidget Methods
1697  */
1698
1699 /* GtkWidget::map helper */
1700 static void
1701 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1702 {
1703   GList *list;
1704
1705   g_return_if_fail (gtk_widget_get_mapped (GTK_WIDGET (tree_view)));
1706
1707   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1708     {
1709       GtkTreeViewColumn *column;
1710
1711       for (list = tree_view->priv->columns; list; list = list->next)
1712         {
1713           column = list->data;
1714           if (gtk_widget_get_visible (column->button) &&
1715               !gtk_widget_get_mapped (column->button))
1716             gtk_widget_map (column->button);
1717         }
1718       for (list = tree_view->priv->columns; list; list = list->next)
1719         {
1720           column = list->data;
1721           if (column->visible == FALSE)
1722             continue;
1723           if (column->resizable)
1724             {
1725               gdk_window_raise (column->window);
1726               gdk_window_show (column->window);
1727             }
1728           else
1729             gdk_window_hide (column->window);
1730         }
1731       gdk_window_show (tree_view->priv->header_window);
1732     }
1733 }
1734
1735 static void
1736 gtk_tree_view_map (GtkWidget *widget)
1737 {
1738   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1739   GList *tmp_list;
1740
1741   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1742
1743   tmp_list = tree_view->priv->children;
1744   while (tmp_list)
1745     {
1746       GtkTreeViewChild *child = tmp_list->data;
1747       tmp_list = tmp_list->next;
1748
1749       if (gtk_widget_get_visible (child->widget))
1750         {
1751           if (!gtk_widget_get_mapped (child->widget))
1752             gtk_widget_map (child->widget);
1753         }
1754     }
1755   gdk_window_show (tree_view->priv->bin_window);
1756
1757   gtk_tree_view_map_buttons (tree_view);
1758
1759   gdk_window_show (widget->window);
1760 }
1761
1762 static void
1763 gtk_tree_view_realize (GtkWidget *widget)
1764 {
1765   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1766   GList *tmp_list;
1767   GdkWindowAttr attributes;
1768   gint attributes_mask;
1769
1770   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1771
1772   /* Make the main, clipping window */
1773   attributes.window_type = GDK_WINDOW_CHILD;
1774   attributes.x = widget->allocation.x;
1775   attributes.y = widget->allocation.y;
1776   attributes.width = widget->allocation.width;
1777   attributes.height = widget->allocation.height;
1778   attributes.wclass = GDK_INPUT_OUTPUT;
1779   attributes.visual = gtk_widget_get_visual (widget);
1780   attributes.colormap = gtk_widget_get_colormap (widget);
1781   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1782
1783   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1784
1785   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1786                                    &attributes, attributes_mask);
1787   gdk_window_set_user_data (widget->window, widget);
1788
1789   /* Make the window for the tree */
1790   attributes.x = 0;
1791   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1792   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1793   attributes.height = widget->allocation.height;
1794   attributes.event_mask = (GDK_EXPOSURE_MASK |
1795                            GDK_SCROLL_MASK |
1796                            GDK_POINTER_MOTION_MASK |
1797                            GDK_ENTER_NOTIFY_MASK |
1798                            GDK_LEAVE_NOTIFY_MASK |
1799                            GDK_BUTTON_PRESS_MASK |
1800                            GDK_BUTTON_RELEASE_MASK |
1801                            gtk_widget_get_events (widget));
1802
1803   tree_view->priv->bin_window = gdk_window_new (widget->window,
1804                                                 &attributes, attributes_mask);
1805   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1806
1807   /* Make the column header window */
1808   attributes.x = 0;
1809   attributes.y = 0;
1810   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1811   attributes.height = tree_view->priv->header_height;
1812   attributes.event_mask = (GDK_EXPOSURE_MASK |
1813                            GDK_SCROLL_MASK |
1814                            GDK_BUTTON_PRESS_MASK |
1815                            GDK_BUTTON_RELEASE_MASK |
1816                            GDK_KEY_PRESS_MASK |
1817                            GDK_KEY_RELEASE_MASK |
1818                            gtk_widget_get_events (widget));
1819
1820   tree_view->priv->header_window = gdk_window_new (widget->window,
1821                                                    &attributes, attributes_mask);
1822   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1823
1824   /* Add them all up. */
1825   widget->style = gtk_style_attach (widget->style, widget->window);
1826   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1827   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1828   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1829
1830   tmp_list = tree_view->priv->children;
1831   while (tmp_list)
1832     {
1833       GtkTreeViewChild *child = tmp_list->data;
1834       tmp_list = tmp_list->next;
1835
1836       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1837     }
1838
1839   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1840     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1841
1842   /* Need to call those here, since they create GCs */
1843   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1844   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1845
1846   install_presize_handler (tree_view);
1847 }
1848
1849 static void
1850 gtk_tree_view_unrealize (GtkWidget *widget)
1851 {
1852   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1853   GtkTreeViewPrivate *priv = tree_view->priv;
1854   GList *list;
1855
1856   if (priv->scroll_timeout != 0)
1857     {
1858       g_source_remove (priv->scroll_timeout);
1859       priv->scroll_timeout = 0;
1860     }
1861
1862   if (priv->auto_expand_timeout != 0)
1863     {
1864       g_source_remove (priv->auto_expand_timeout);
1865       priv->auto_expand_timeout = 0;
1866     }
1867
1868   if (priv->open_dest_timeout != 0)
1869     {
1870       g_source_remove (priv->open_dest_timeout);
1871       priv->open_dest_timeout = 0;
1872     }
1873
1874   remove_expand_collapse_timeout (tree_view);
1875
1876   if (priv->presize_handler_timer != 0)
1877     {
1878       g_source_remove (priv->presize_handler_timer);
1879       priv->presize_handler_timer = 0;
1880     }
1881
1882   if (priv->validate_rows_timer != 0)
1883     {
1884       g_source_remove (priv->validate_rows_timer);
1885       priv->validate_rows_timer = 0;
1886     }
1887
1888   if (priv->scroll_sync_timer != 0)
1889     {
1890       g_source_remove (priv->scroll_sync_timer);
1891       priv->scroll_sync_timer = 0;
1892     }
1893
1894   if (priv->typeselect_flush_timeout)
1895     {
1896       g_source_remove (priv->typeselect_flush_timeout);
1897       priv->typeselect_flush_timeout = 0;
1898     }
1899
1900   for (list = priv->columns; list; list = list->next)
1901     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1902
1903   gdk_window_set_user_data (priv->bin_window, NULL);
1904   gdk_window_destroy (priv->bin_window);
1905   priv->bin_window = NULL;
1906
1907   gdk_window_set_user_data (priv->header_window, NULL);
1908   gdk_window_destroy (priv->header_window);
1909   priv->header_window = NULL;
1910
1911   if (priv->drag_window)
1912     {
1913       gdk_window_set_user_data (priv->drag_window, NULL);
1914       gdk_window_destroy (priv->drag_window);
1915       priv->drag_window = NULL;
1916     }
1917
1918   if (priv->drag_highlight_window)
1919     {
1920       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1921       gdk_window_destroy (priv->drag_highlight_window);
1922       priv->drag_highlight_window = NULL;
1923     }
1924
1925   if (priv->tree_line_gc)
1926     {
1927       g_object_unref (priv->tree_line_gc);
1928       priv->tree_line_gc = NULL;
1929     }
1930
1931   if (priv->grid_line_gc)
1932     {
1933       g_object_unref (priv->grid_line_gc);
1934       priv->grid_line_gc = NULL;
1935     }
1936
1937   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
1938 }
1939
1940 /* GtkWidget::size_request helper */
1941 static void
1942 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1943 {
1944   GList *list;
1945
1946   tree_view->priv->header_height = 0;
1947
1948   if (tree_view->priv->model)
1949     {
1950       for (list = tree_view->priv->columns; list; list = list->next)
1951         {
1952           GtkRequisition requisition;
1953           GtkTreeViewColumn *column = list->data;
1954
1955           if (column->button == NULL)
1956             continue;
1957
1958           column = list->data;
1959
1960           gtk_widget_size_request (column->button, &requisition);
1961           column->button_request = requisition.width;
1962           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1963         }
1964     }
1965 }
1966
1967
1968 /* Called only by ::size_request */
1969 static void
1970 gtk_tree_view_update_size (GtkTreeView *tree_view)
1971 {
1972   GList *list;
1973   GtkTreeViewColumn *column;
1974   gint i;
1975
1976   if (tree_view->priv->model == NULL)
1977     {
1978       tree_view->priv->width = 0;
1979       tree_view->priv->prev_width = 0;
1980       tree_view->priv->height = 0;
1981       return;
1982     }
1983
1984   tree_view->priv->prev_width = tree_view->priv->width;
1985   tree_view->priv->width = 0;
1986
1987   /* keep this in sync with size_allocate below */
1988   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1989     {
1990       gint real_requested_width = 0;
1991       column = list->data;
1992       if (!column->visible)
1993         continue;
1994
1995       if (column->use_resized_width)
1996         {
1997           real_requested_width = column->resized_width;
1998         }
1999       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2000         {
2001           real_requested_width = column->fixed_width;
2002         }
2003       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2004         {
2005           real_requested_width = MAX (column->requested_width, column->button_request);
2006         }
2007       else
2008         {
2009           real_requested_width = column->requested_width;
2010         }
2011
2012       if (column->min_width != -1)
2013         real_requested_width = MAX (real_requested_width, column->min_width);
2014       if (column->max_width != -1)
2015         real_requested_width = MIN (real_requested_width, column->max_width);
2016
2017       tree_view->priv->width += real_requested_width;
2018     }
2019
2020   if (tree_view->priv->tree == NULL)
2021     tree_view->priv->height = 0;
2022   else
2023     tree_view->priv->height = tree_view->priv->tree->root->offset;
2024 }
2025
2026 static void
2027 gtk_tree_view_size_request (GtkWidget      *widget,
2028                             GtkRequisition *requisition)
2029 {
2030   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2031   GList *tmp_list;
2032
2033   /* we validate some rows initially just to make sure we have some size.
2034    * In practice, with a lot of static lists, this should get a good width.
2035    */
2036   do_validate_rows (tree_view, FALSE);
2037   gtk_tree_view_size_request_columns (tree_view);
2038   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2039
2040   requisition->width = tree_view->priv->width;
2041   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2042
2043   tmp_list = tree_view->priv->children;
2044
2045   while (tmp_list)
2046     {
2047       GtkTreeViewChild *child = tmp_list->data;
2048       GtkRequisition child_requisition;
2049
2050       tmp_list = tmp_list->next;
2051
2052       if (gtk_widget_get_visible (child->widget))
2053         gtk_widget_size_request (child->widget, &child_requisition);
2054     }
2055 }
2056
2057 static int
2058 gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
2059 {
2060   int width = 0;
2061   GList *list;
2062   gboolean rtl;
2063
2064   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2065   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2066        list->data != tree_view->priv->expander_column;
2067        list = (rtl ? list->prev : list->next))
2068     {
2069       GtkTreeViewColumn *column = list->data;
2070
2071       width += column->width;
2072     }
2073
2074   return width;
2075 }
2076
2077 static void
2078 invalidate_column (GtkTreeView       *tree_view,
2079                    GtkTreeViewColumn *column)
2080 {
2081   gint column_offset = 0;
2082   GList *list;
2083   GtkWidget *widget = GTK_WIDGET (tree_view);
2084   gboolean rtl;
2085
2086   if (!GTK_WIDGET_REALIZED (widget))
2087     return;
2088
2089   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2090   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2091        list;
2092        list = (rtl ? list->prev : list->next))
2093     {
2094       GtkTreeViewColumn *tmpcolumn = list->data;
2095       if (tmpcolumn == column)
2096         {
2097           GdkRectangle invalid_rect;
2098
2099           invalid_rect.x = column_offset;
2100           invalid_rect.y = 0;
2101           invalid_rect.width = column->width;
2102           invalid_rect.height = widget->allocation.height;
2103
2104           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2105           break;
2106         }
2107
2108       column_offset += tmpcolumn->width;
2109     }
2110 }
2111
2112 static void
2113 invalidate_last_column (GtkTreeView *tree_view)
2114 {
2115   GList *last_column;
2116   gboolean rtl;
2117
2118   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2119
2120   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2121        last_column;
2122        last_column = (rtl ? last_column->next : last_column->prev))
2123     {
2124       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2125         {
2126           invalidate_column (tree_view, last_column->data);
2127           return;
2128         }
2129     }
2130 }
2131
2132 static gint
2133 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2134                                                     GtkTreeViewColumn *column)
2135 {
2136   gint real_requested_width;
2137
2138   if (column->use_resized_width)
2139     {
2140       real_requested_width = column->resized_width;
2141     }
2142   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2143     {
2144       real_requested_width = column->fixed_width;
2145     }
2146   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2147     {
2148       real_requested_width = MAX (column->requested_width, column->button_request);
2149     }
2150   else
2151     {
2152       real_requested_width = column->requested_width;
2153       if (real_requested_width < 0)
2154         real_requested_width = 0;
2155     }
2156
2157   if (column->min_width != -1)
2158     real_requested_width = MAX (real_requested_width, column->min_width);
2159   if (column->max_width != -1)
2160     real_requested_width = MIN (real_requested_width, column->max_width);
2161
2162   return real_requested_width;
2163 }
2164
2165 /* GtkWidget::size_allocate helper */
2166 static void
2167 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2168                                      gboolean  *width_changed)
2169 {
2170   GtkTreeView *tree_view;
2171   GList *list, *first_column, *last_column;
2172   GtkTreeViewColumn *column;
2173   GtkAllocation allocation;
2174   gint width = 0;
2175   gint extra, extra_per_column, extra_for_last;
2176   gint full_requested_width = 0;
2177   gint number_of_expand_columns = 0;
2178   gboolean column_changed = FALSE;
2179   gboolean rtl;
2180   gboolean update_expand;
2181
2182   tree_view = GTK_TREE_VIEW (widget);
2183
2184   for (last_column = g_list_last (tree_view->priv->columns);
2185        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2186        last_column = last_column->prev)
2187     ;
2188   if (last_column == NULL)
2189     return;
2190
2191   for (first_column = g_list_first (tree_view->priv->columns);
2192        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2193        first_column = first_column->next)
2194     ;
2195
2196   allocation.y = 0;
2197   allocation.height = tree_view->priv->header_height;
2198
2199   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2200
2201   /* find out how many extra space and expandable columns we have */
2202   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2203     {
2204       column = (GtkTreeViewColumn *)list->data;
2205
2206       if (!column->visible)
2207         continue;
2208
2209       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2210
2211       if (column->expand)
2212         number_of_expand_columns++;
2213     }
2214
2215   /* Only update the expand value if the width of the widget has changed,
2216    * or the number of expand columns has changed, or if there are no expand
2217    * columns, or if we didn't have an size-allocation yet after the
2218    * last validated node.
2219    */
2220   update_expand = (width_changed && *width_changed == TRUE)
2221       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2222       || number_of_expand_columns == 0
2223       || tree_view->priv->post_validation_flag == TRUE;
2224
2225   tree_view->priv->post_validation_flag = FALSE;
2226
2227   if (!update_expand)
2228     {
2229       extra = tree_view->priv->last_extra_space;
2230       extra_for_last = MAX (widget->allocation.width - full_requested_width - extra, 0);
2231     }
2232   else
2233     {
2234       extra = MAX (widget->allocation.width - full_requested_width, 0);
2235       extra_for_last = 0;
2236
2237       tree_view->priv->last_extra_space = extra;
2238     }
2239
2240   if (number_of_expand_columns > 0)
2241     extra_per_column = extra/number_of_expand_columns;
2242   else
2243     extra_per_column = 0;
2244
2245   if (update_expand)
2246     {
2247       tree_view->priv->last_extra_space_per_column = extra_per_column;
2248       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2249     }
2250
2251   for (list = (rtl ? last_column : first_column);
2252        list != (rtl ? first_column->prev : last_column->next);
2253        list = (rtl ? list->prev : list->next))
2254     {
2255       gint real_requested_width = 0;
2256       gint old_width;
2257
2258       column = list->data;
2259       old_width = column->width;
2260
2261       if (!column->visible)
2262         continue;
2263
2264       /* We need to handle the dragged button specially.
2265        */
2266       if (column == tree_view->priv->drag_column)
2267         {
2268           GtkAllocation drag_allocation;
2269           gdk_drawable_get_size (tree_view->priv->drag_window,
2270                                  &(drag_allocation.width),
2271                                  &(drag_allocation.height));
2272           drag_allocation.x = 0;
2273           drag_allocation.y = 0;
2274           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2275                                     &drag_allocation);
2276           width += drag_allocation.width;
2277           continue;
2278         }
2279
2280       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2281
2282       allocation.x = width;
2283       column->width = real_requested_width;
2284
2285       if (column->expand)
2286         {
2287           if (number_of_expand_columns == 1)
2288             {
2289               /* We add the remander to the last column as
2290                * */
2291               column->width += extra;
2292             }
2293           else
2294             {
2295               column->width += extra_per_column;
2296               extra -= extra_per_column;
2297               number_of_expand_columns --;
2298             }
2299         }
2300       else if (number_of_expand_columns == 0 &&
2301                list == last_column)
2302         {
2303           column->width += extra;
2304         }
2305
2306       /* In addition to expand, the last column can get even more
2307        * extra space so all available space is filled up.
2308        */
2309       if (extra_for_last > 0 && list == last_column)
2310         column->width += extra_for_last;
2311
2312       g_object_notify (G_OBJECT (column), "width");
2313
2314       allocation.width = column->width;
2315       width += column->width;
2316
2317       if (column->width > old_width)
2318         column_changed = TRUE;
2319
2320       gtk_widget_size_allocate (column->button, &allocation);
2321
2322       if (column->window)
2323         gdk_window_move_resize (column->window,
2324                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2325                                 allocation.y,
2326                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2327     }
2328
2329   /* We change the width here.  The user might have been resizing columns,
2330    * so the total width of the tree view changes.
2331    */
2332   tree_view->priv->width = width;
2333   if (width_changed)
2334     *width_changed = TRUE;
2335
2336   if (column_changed)
2337     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2338 }
2339
2340
2341 static void
2342 gtk_tree_view_size_allocate (GtkWidget     *widget,
2343                              GtkAllocation *allocation)
2344 {
2345   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2346   GList *tmp_list;
2347   gboolean width_changed = FALSE;
2348   gint old_width = widget->allocation.width;
2349
2350   if (allocation->width != widget->allocation.width)
2351     width_changed = TRUE;
2352
2353   widget->allocation = *allocation;
2354
2355   tmp_list = tree_view->priv->children;
2356
2357   while (tmp_list)
2358     {
2359       GtkAllocation allocation;
2360
2361       GtkTreeViewChild *child = tmp_list->data;
2362       tmp_list = tmp_list->next;
2363
2364       /* totally ignore our child's requisition */
2365       allocation.x = child->x;
2366       allocation.y = child->y;
2367       allocation.width = child->width;
2368       allocation.height = child->height;
2369       gtk_widget_size_allocate (child->widget, &allocation);
2370     }
2371
2372   /* We size-allocate the columns first because the width of the
2373    * tree view (used in updating the adjustments below) might change.
2374    */
2375   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2376
2377   tree_view->priv->hadjustment->page_size = allocation->width;
2378   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2379   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2380   tree_view->priv->hadjustment->lower = 0;
2381   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2382
2383   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2384     {
2385       if (allocation->width < tree_view->priv->width)
2386         {
2387           if (tree_view->priv->init_hadjust_value)
2388             {
2389               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2390               tree_view->priv->init_hadjust_value = FALSE;
2391             }
2392           else if (allocation->width != old_width)
2393             {
2394               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2395             }
2396           else
2397             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);
2398         }
2399       else
2400         {
2401           tree_view->priv->hadjustment->value = 0;
2402           tree_view->priv->init_hadjust_value = TRUE;
2403         }
2404     }
2405   else
2406     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2407       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2408
2409   gtk_adjustment_changed (tree_view->priv->hadjustment);
2410
2411   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2412   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2413   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2414   tree_view->priv->vadjustment->lower = 0;
2415   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2416
2417   gtk_adjustment_changed (tree_view->priv->vadjustment);
2418
2419   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2420   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2421     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2422   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2423     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2424                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2425   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2426     gtk_tree_view_top_row_to_dy (tree_view);
2427   else
2428     gtk_tree_view_dy_to_top_row (tree_view);
2429
2430   if (GTK_WIDGET_REALIZED (widget))
2431     {
2432       gdk_window_move_resize (widget->window,
2433                               allocation->x, allocation->y,
2434                               allocation->width, allocation->height);
2435       gdk_window_move_resize (tree_view->priv->header_window,
2436                               - (gint) tree_view->priv->hadjustment->value,
2437                               0,
2438                               MAX (tree_view->priv->width, allocation->width),
2439                               tree_view->priv->header_height);
2440       gdk_window_move_resize (tree_view->priv->bin_window,
2441                               - (gint) tree_view->priv->hadjustment->value,
2442                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2443                               MAX (tree_view->priv->width, allocation->width),
2444                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2445     }
2446
2447   if (tree_view->priv->tree == NULL)
2448     invalidate_empty_focus (tree_view);
2449
2450   if (GTK_WIDGET_REALIZED (widget))
2451     {
2452       gboolean has_expand_column = FALSE;
2453       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2454         {
2455           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2456             {
2457               has_expand_column = TRUE;
2458               break;
2459             }
2460         }
2461
2462       if (width_changed && tree_view->priv->expander_column)
2463         {
2464           /* Might seem awkward, but is the best heuristic I could come up
2465            * with.  Only if the width of the columns before the expander
2466            * changes, we will update the prelight status.  It is this
2467            * width that makes the expander move vertically.  Always updating
2468            * prelight status causes trouble with hover selections.
2469            */
2470           gint width_before_expander;
2471
2472           width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view);
2473
2474           if (tree_view->priv->prev_width_before_expander
2475               != width_before_expander)
2476               update_prelight (tree_view,
2477                                tree_view->priv->event_last_x,
2478                                tree_view->priv->event_last_y);
2479
2480           tree_view->priv->prev_width_before_expander = width_before_expander;
2481         }
2482
2483       /* This little hack only works if we have an LTR locale, and no column has the  */
2484       if (width_changed)
2485         {
2486           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2487               ! has_expand_column)
2488             invalidate_last_column (tree_view);
2489           else
2490             gtk_widget_queue_draw (widget);
2491         }
2492     }
2493 }
2494
2495 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2496 static void
2497 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2498 {
2499   GtkWidget *widget = GTK_WIDGET (tree_view);
2500
2501   if (gtk_widget_get_can_focus (widget) && !gtk_widget_has_focus (widget))
2502     gtk_widget_grab_focus (widget);
2503   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2504 }
2505
2506 static inline gboolean
2507 row_is_separator (GtkTreeView *tree_view,
2508                   GtkTreeIter *iter,
2509                   GtkTreePath *path)
2510 {
2511   gboolean is_separator = FALSE;
2512
2513   if (tree_view->priv->row_separator_func)
2514     {
2515       GtkTreeIter tmpiter;
2516
2517       if (iter)
2518         tmpiter = *iter;
2519       else
2520         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2521
2522       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2523                                                           &tmpiter,
2524                                                           tree_view->priv->row_separator_data);
2525     }
2526
2527   return is_separator;
2528 }
2529
2530 static gboolean
2531 gtk_tree_view_button_press (GtkWidget      *widget,
2532                             GdkEventButton *event)
2533 {
2534   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2535   GList *list;
2536   GtkTreeViewColumn *column = NULL;
2537   gint i;
2538   GdkRectangle background_area;
2539   GdkRectangle cell_area;
2540   gint vertical_separator;
2541   gint horizontal_separator;
2542   gboolean path_is_selectable;
2543   gboolean rtl;
2544
2545   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2546   gtk_tree_view_stop_editing (tree_view, FALSE);
2547   gtk_widget_style_get (widget,
2548                         "vertical-separator", &vertical_separator,
2549                         "horizontal-separator", &horizontal_separator,
2550                         NULL);
2551
2552
2553   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2554    * we're done handling the button press.
2555    */
2556
2557   if (event->window == tree_view->priv->bin_window)
2558     {
2559       GtkRBNode *node;
2560       GtkRBTree *tree;
2561       GtkTreePath *path;
2562       gchar *path_string;
2563       gint depth;
2564       gint new_y;
2565       gint y_offset;
2566       gint dval;
2567       gint pre_val, aft_val;
2568       GtkTreeViewColumn *column = NULL;
2569       GtkCellRenderer *focus_cell = NULL;
2570       gint column_handled_click = FALSE;
2571       gboolean row_double_click = FALSE;
2572       gboolean rtl;
2573       gboolean node_selected;
2574
2575       /* Empty tree? */
2576       if (tree_view->priv->tree == NULL)
2577         {
2578           grab_focus_and_unset_draw_keyfocus (tree_view);
2579           return TRUE;
2580         }
2581
2582       /* are we in an arrow? */
2583       if (tree_view->priv->prelight_node &&
2584           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2585           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2586         {
2587           if (event->button == 1)
2588             {
2589               gtk_grab_add (widget);
2590               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2591               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2592               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2593                                         tree_view->priv->prelight_tree,
2594                                         tree_view->priv->prelight_node,
2595                                         event->x,
2596                                         event->y);
2597             }
2598
2599           grab_focus_and_unset_draw_keyfocus (tree_view);
2600           return TRUE;
2601         }
2602
2603       /* find the node that was clicked */
2604       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2605       if (new_y < 0)
2606         new_y = 0;
2607       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2608
2609       if (node == NULL)
2610         {
2611           /* We clicked in dead space */
2612           grab_focus_and_unset_draw_keyfocus (tree_view);
2613           return TRUE;
2614         }
2615
2616       /* Get the path and the node */
2617       path = _gtk_tree_view_find_path (tree_view, tree, node);
2618       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2619
2620       if (!path_is_selectable)
2621         {
2622           gtk_tree_path_free (path);
2623           grab_focus_and_unset_draw_keyfocus (tree_view);
2624           return TRUE;
2625         }
2626
2627       depth = gtk_tree_path_get_depth (path);
2628       background_area.y = y_offset + event->y;
2629       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2630       background_area.x = 0;
2631
2632
2633       /* Let the column have a chance at selecting it. */
2634       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2635       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2636            list; list = (rtl ? list->prev : list->next))
2637         {
2638           GtkTreeViewColumn *candidate = list->data;
2639
2640           if (!candidate->visible)
2641             continue;
2642
2643           background_area.width = candidate->width;
2644           if ((background_area.x > (gint) event->x) ||
2645               (background_area.x + background_area.width <= (gint) event->x))
2646             {
2647               background_area.x += background_area.width;
2648               continue;
2649             }
2650
2651           /* we found the focus column */
2652           column = candidate;
2653           cell_area = background_area;
2654           cell_area.width -= horizontal_separator;
2655           cell_area.height -= vertical_separator;
2656           cell_area.x += horizontal_separator/2;
2657           cell_area.y += vertical_separator/2;
2658           if (gtk_tree_view_is_expander_column (tree_view, column))
2659             {
2660               if (!rtl)
2661                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2662               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2663
2664               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2665                 {
2666                   if (!rtl)
2667                     cell_area.x += depth * tree_view->priv->expander_size;
2668                   cell_area.width -= depth * tree_view->priv->expander_size;
2669                 }
2670             }
2671           break;
2672         }
2673
2674       if (column == NULL)
2675         {
2676           gtk_tree_path_free (path);
2677           grab_focus_and_unset_draw_keyfocus (tree_view);
2678           return FALSE;
2679         }
2680
2681       tree_view->priv->focus_column = column;
2682
2683       /* decide if we edit */
2684       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2685           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2686         {
2687           GtkTreePath *anchor;
2688           GtkTreeIter iter;
2689
2690           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2691           gtk_tree_view_column_cell_set_cell_data (column,
2692                                                    tree_view->priv->model,
2693                                                    &iter,
2694                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2695                                                    node->children?TRUE:FALSE);
2696
2697           if (tree_view->priv->anchor)
2698             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2699           else
2700             anchor = NULL;
2701
2702           if ((anchor && !gtk_tree_path_compare (anchor, path))
2703               || !_gtk_tree_view_column_has_editable_cell (column))
2704             {
2705               GtkCellEditable *cell_editable = NULL;
2706
2707               /* FIXME: get the right flags */
2708               guint flags = 0;
2709
2710               path_string = gtk_tree_path_to_string (path);
2711
2712               if (_gtk_tree_view_column_cell_event (column,
2713                                                     &cell_editable,
2714                                                     (GdkEvent *)event,
2715                                                     path_string,
2716                                                     &background_area,
2717                                                     &cell_area, flags))
2718                 {
2719                   if (cell_editable != NULL)
2720                     {
2721                       gint left, right;
2722                       GdkRectangle area;
2723
2724                       area = cell_area;
2725                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2726
2727                       area.x += left;
2728                       area.width -= right + left;
2729
2730                       gtk_tree_view_real_start_editing (tree_view,
2731                                                         column,
2732                                                         path,
2733                                                         cell_editable,
2734                                                         &area,
2735                                                         (GdkEvent *)event,
2736                                                         flags);
2737                       g_free (path_string);
2738                       gtk_tree_path_free (path);
2739                       gtk_tree_path_free (anchor);
2740                       return TRUE;
2741                     }
2742                   column_handled_click = TRUE;
2743                 }
2744               g_free (path_string);
2745             }
2746           if (anchor)
2747             gtk_tree_path_free (anchor);
2748         }
2749
2750       /* select */
2751       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2752       pre_val = tree_view->priv->vadjustment->value;
2753
2754       /* we only handle selection modifications on the first button press
2755        */
2756       if (event->type == GDK_BUTTON_PRESS)
2757         {
2758           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2759             tree_view->priv->ctrl_pressed = TRUE;
2760           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2761             tree_view->priv->shift_pressed = TRUE;
2762
2763           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2764           if (focus_cell)
2765             gtk_tree_view_column_focus_cell (column, focus_cell);
2766
2767           if (event->state & GDK_CONTROL_MASK)
2768             {
2769               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2770               gtk_tree_view_real_toggle_cursor_row (tree_view);
2771             }
2772           else if (event->state & GDK_SHIFT_MASK)
2773             {
2774               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2775               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2776             }
2777           else
2778             {
2779               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2780             }
2781
2782           tree_view->priv->ctrl_pressed = FALSE;
2783           tree_view->priv->shift_pressed = FALSE;
2784         }
2785
2786       /* the treeview may have been scrolled because of _set_cursor,
2787        * correct here
2788        */
2789
2790       aft_val = tree_view->priv->vadjustment->value;
2791       dval = pre_val - aft_val;
2792
2793       cell_area.y += dval;
2794       background_area.y += dval;
2795
2796       /* Save press to possibly begin a drag
2797        */
2798       if (!column_handled_click &&
2799           !tree_view->priv->in_grab &&
2800           tree_view->priv->pressed_button < 0)
2801         {
2802           tree_view->priv->pressed_button = event->button;
2803           tree_view->priv->press_start_x = event->x;
2804           tree_view->priv->press_start_y = event->y;
2805
2806           if (tree_view->priv->rubber_banding_enable
2807               && !node_selected
2808               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2809             {
2810               tree_view->priv->press_start_y += tree_view->priv->dy;
2811               tree_view->priv->rubber_band_x = event->x;
2812               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2813               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2814
2815               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2816                 tree_view->priv->rubber_band_ctrl = TRUE;
2817               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2818                 tree_view->priv->rubber_band_shift = TRUE;
2819             }
2820         }
2821
2822       /* Test if a double click happened on the same row. */
2823       if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
2824         {
2825           int double_click_time, double_click_distance;
2826
2827           g_object_get (gtk_settings_get_default (),
2828                         "gtk-double-click-time", &double_click_time,
2829                         "gtk-double-click-distance", &double_click_distance,
2830                         NULL);
2831
2832           /* Same conditions as _gdk_event_button_generate */
2833           if (tree_view->priv->last_button_x != -1 &&
2834               (event->time < tree_view->priv->last_button_time + double_click_time) &&
2835               (ABS (event->x - tree_view->priv->last_button_x) <= double_click_distance) &&
2836               (ABS (event->y - tree_view->priv->last_button_y) <= double_click_distance))
2837             {
2838               /* We do no longer compare paths of this row and the
2839                * row clicked previously.  We use the double click
2840                * distance to decide whether this is a valid click,
2841                * allowing the mouse to slightly move over another row.
2842                */
2843               row_double_click = TRUE;
2844
2845               tree_view->priv->last_button_time = 0;
2846               tree_view->priv->last_button_x = -1;
2847               tree_view->priv->last_button_y = -1;
2848             }
2849           else
2850             {
2851               tree_view->priv->last_button_time = event->time;
2852               tree_view->priv->last_button_x = event->x;
2853               tree_view->priv->last_button_y = event->y;
2854             }
2855         }
2856
2857       if (row_double_click)
2858         {
2859           gtk_grab_remove (widget);
2860           gtk_tree_view_row_activated (tree_view, path, column);
2861
2862           if (tree_view->priv->pressed_button == event->button)
2863             tree_view->priv->pressed_button = -1;
2864         }
2865
2866       gtk_tree_path_free (path);
2867
2868       /* If we activated the row through a double click we don't want to grab
2869        * focus back, as moving focus to another widget is pretty common.
2870        */
2871       if (!row_double_click)
2872         grab_focus_and_unset_draw_keyfocus (tree_view);
2873
2874       return TRUE;
2875     }
2876
2877   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2878    */
2879   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2880     {
2881       column = list->data;
2882       if (event->window == column->window &&
2883           column->resizable &&
2884           column->window)
2885         {
2886           gpointer drag_data;
2887
2888           if (event->type == GDK_2BUTTON_PRESS &&
2889               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2890             {
2891               column->use_resized_width = FALSE;
2892               _gtk_tree_view_column_autosize (tree_view, column);
2893               return TRUE;
2894             }
2895
2896           if (gdk_pointer_grab (column->window, FALSE,
2897                                 GDK_POINTER_MOTION_HINT_MASK |
2898                                 GDK_BUTTON1_MOTION_MASK |
2899                                 GDK_BUTTON_RELEASE_MASK,
2900                                 NULL, NULL, event->time))
2901             return FALSE;
2902
2903           gtk_grab_add (widget);
2904           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2905           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2906
2907           /* block attached dnd signal handler */
2908           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2909           if (drag_data)
2910             g_signal_handlers_block_matched (widget,
2911                                              G_SIGNAL_MATCH_DATA,
2912                                              0, 0, NULL, NULL,
2913                                              drag_data);
2914
2915           tree_view->priv->drag_pos = i;
2916           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2917
2918           if (!gtk_widget_has_focus (widget))
2919             gtk_widget_grab_focus (widget);
2920
2921           return TRUE;
2922         }
2923     }
2924   return FALSE;
2925 }
2926
2927 /* GtkWidget::button_release_event helper */
2928 static gboolean
2929 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2930                                           GdkEventButton *event)
2931 {
2932   GtkTreeView *tree_view;
2933   GList *l;
2934   gboolean rtl;
2935
2936   tree_view = GTK_TREE_VIEW (widget);
2937
2938   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2939   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2940   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2941
2942   /* Move the button back */
2943   g_object_ref (tree_view->priv->drag_column->button);
2944   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2945   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2946   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2947   g_object_unref (tree_view->priv->drag_column->button);
2948   gtk_widget_queue_resize (widget);
2949   if (tree_view->priv->drag_column->resizable)
2950     {
2951       gdk_window_raise (tree_view->priv->drag_column->window);
2952       gdk_window_show (tree_view->priv->drag_column->window);
2953     }
2954   else
2955     gdk_window_hide (tree_view->priv->drag_column->window);
2956
2957   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2958
2959   if (rtl)
2960     {
2961       if (tree_view->priv->cur_reorder &&
2962           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2963         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2964                                          tree_view->priv->cur_reorder->right_column);
2965     }
2966   else
2967     {
2968       if (tree_view->priv->cur_reorder &&
2969           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2970         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2971                                          tree_view->priv->cur_reorder->left_column);
2972     }
2973   tree_view->priv->drag_column = NULL;
2974   gdk_window_hide (tree_view->priv->drag_window);
2975
2976   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2977     g_slice_free (GtkTreeViewColumnReorder, l->data);
2978   g_list_free (tree_view->priv->column_drag_info);
2979   tree_view->priv->column_drag_info = NULL;
2980   tree_view->priv->cur_reorder = NULL;
2981
2982   if (tree_view->priv->drag_highlight_window)
2983     gdk_window_hide (tree_view->priv->drag_highlight_window);
2984
2985   /* Reset our flags */
2986   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2987   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2988
2989   return TRUE;
2990 }
2991
2992 /* GtkWidget::button_release_event helper */
2993 static gboolean
2994 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2995                                             GdkEventButton *event)
2996 {
2997   GtkTreeView *tree_view;
2998   gpointer drag_data;
2999
3000   tree_view = GTK_TREE_VIEW (widget);
3001
3002   tree_view->priv->drag_pos = -1;
3003
3004   /* unblock attached dnd signal handler */
3005   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
3006   if (drag_data)
3007     g_signal_handlers_unblock_matched (widget,
3008                                        G_SIGNAL_MATCH_DATA,
3009                                        0, 0, NULL, NULL,
3010                                        drag_data);
3011
3012   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
3013   gtk_grab_remove (widget);
3014   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
3015                               event->time);
3016   return TRUE;
3017 }
3018
3019 static gboolean
3020 gtk_tree_view_button_release (GtkWidget      *widget,
3021                               GdkEventButton *event)
3022 {
3023   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3024
3025   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3026     return gtk_tree_view_button_release_drag_column (widget, event);
3027
3028   if (tree_view->priv->rubber_band_status)
3029     gtk_tree_view_stop_rubber_band (tree_view);
3030
3031   if (tree_view->priv->pressed_button == event->button)
3032     tree_view->priv->pressed_button = -1;
3033
3034   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3035     return gtk_tree_view_button_release_column_resize (widget, event);
3036
3037   if (tree_view->priv->button_pressed_node == NULL)
3038     return FALSE;
3039
3040   if (event->button == 1)
3041     {
3042       gtk_grab_remove (widget);
3043       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3044           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3045         {
3046           GtkTreePath *path = NULL;
3047
3048           path = _gtk_tree_view_find_path (tree_view,
3049                                            tree_view->priv->button_pressed_tree,
3050                                            tree_view->priv->button_pressed_node);
3051           /* Actually activate the node */
3052           if (tree_view->priv->button_pressed_node->children == NULL)
3053             gtk_tree_view_real_expand_row (tree_view, path,
3054                                            tree_view->priv->button_pressed_tree,
3055                                            tree_view->priv->button_pressed_node,
3056                                            FALSE, TRUE);
3057           else
3058             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3059                                              tree_view->priv->button_pressed_tree,
3060                                              tree_view->priv->button_pressed_node, TRUE);
3061           gtk_tree_path_free (path);
3062         }
3063
3064       tree_view->priv->button_pressed_tree = NULL;
3065       tree_view->priv->button_pressed_node = NULL;
3066     }
3067
3068   return TRUE;
3069 }
3070
3071 static gboolean
3072 gtk_tree_view_grab_broken (GtkWidget          *widget,
3073                            GdkEventGrabBroken *event)
3074 {
3075   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3076
3077   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3078     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3079
3080   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3081     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3082
3083   return TRUE;
3084 }
3085
3086 #if 0
3087 static gboolean
3088 gtk_tree_view_configure (GtkWidget *widget,
3089                          GdkEventConfigure *event)
3090 {
3091   GtkTreeView *tree_view;
3092
3093   tree_view = GTK_TREE_VIEW (widget);
3094   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3095
3096   return FALSE;
3097 }
3098 #endif
3099
3100 /* GtkWidget::motion_event function set.
3101  */
3102
3103 static gboolean
3104 coords_are_over_arrow (GtkTreeView *tree_view,
3105                        GtkRBTree   *tree,
3106                        GtkRBNode   *node,
3107                        /* these are in bin window coords */
3108                        gint         x,
3109                        gint         y)
3110 {
3111   GdkRectangle arrow;
3112   gint x2;
3113
3114   if (!GTK_WIDGET_REALIZED (tree_view))
3115     return FALSE;
3116
3117   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3118     return FALSE;
3119
3120   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3121
3122   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3123
3124   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3125
3126   arrow.width = x2 - arrow.x;
3127
3128   return (x >= arrow.x &&
3129           x < (arrow.x + arrow.width) &&
3130           y >= arrow.y &&
3131           y < (arrow.y + arrow.height));
3132 }
3133
3134 static gboolean
3135 auto_expand_timeout (gpointer data)
3136 {
3137   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3138   GtkTreePath *path;
3139
3140   if (tree_view->priv->prelight_node)
3141     {
3142       path = _gtk_tree_view_find_path (tree_view,
3143                                        tree_view->priv->prelight_tree,
3144                                        tree_view->priv->prelight_node);
3145
3146       if (tree_view->priv->prelight_node->children)
3147         gtk_tree_view_collapse_row (tree_view, path);
3148       else
3149         gtk_tree_view_expand_row (tree_view, path, FALSE);
3150
3151       gtk_tree_path_free (path);
3152     }
3153
3154   tree_view->priv->auto_expand_timeout = 0;
3155
3156   return FALSE;
3157 }
3158
3159 static void
3160 remove_auto_expand_timeout (GtkTreeView *tree_view)
3161 {
3162   if (tree_view->priv->auto_expand_timeout != 0)
3163     {
3164       g_source_remove (tree_view->priv->auto_expand_timeout);
3165       tree_view->priv->auto_expand_timeout = 0;
3166     }
3167 }
3168
3169 static void
3170 do_prelight (GtkTreeView *tree_view,
3171              GtkRBTree   *tree,
3172              GtkRBNode   *node,
3173              /* these are in bin_window coords */
3174              gint         x,
3175              gint         y)
3176 {
3177   if (tree_view->priv->prelight_tree == tree &&
3178       tree_view->priv->prelight_node == node)
3179     {
3180       /*  We are still on the same node,
3181           but we might need to take care of the arrow  */
3182
3183       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3184         {
3185           gboolean over_arrow;
3186           gboolean flag_set;
3187
3188           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3189           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3190                                              GTK_TREE_VIEW_ARROW_PRELIT);
3191
3192           if (over_arrow != flag_set)
3193             {
3194               if (over_arrow)
3195                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3196                                         GTK_TREE_VIEW_ARROW_PRELIT);
3197               else
3198                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3199                                           GTK_TREE_VIEW_ARROW_PRELIT);
3200
3201               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3202             }
3203         }
3204
3205       return;
3206     }
3207
3208   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3209     {
3210       /*  Unprelight the old node and arrow  */
3211
3212       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3213                              GTK_RBNODE_IS_PRELIT);
3214
3215       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3216           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3217         {
3218           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3219
3220           gtk_tree_view_draw_arrow (tree_view,
3221                                     tree_view->priv->prelight_tree,
3222                                     tree_view->priv->prelight_node,
3223                                     x,
3224                                     y);
3225         }
3226
3227       _gtk_tree_view_queue_draw_node (tree_view,
3228                                       tree_view->priv->prelight_tree,
3229                                       tree_view->priv->prelight_node,
3230                                       NULL);
3231     }
3232
3233
3234   if (tree_view->priv->hover_expand)
3235     remove_auto_expand_timeout (tree_view);
3236
3237   /*  Set the new prelight values  */
3238   tree_view->priv->prelight_node = node;
3239   tree_view->priv->prelight_tree = tree;
3240
3241   if (!node || !tree)
3242     return;
3243
3244   /*  Prelight the new node and arrow  */
3245
3246   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3247       && coords_are_over_arrow (tree_view, tree, node, x, y))
3248     {
3249       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3250
3251       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3252     }
3253
3254   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3255
3256   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3257
3258   if (tree_view->priv->hover_expand)
3259     {
3260       tree_view->priv->auto_expand_timeout =
3261         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3262     }
3263 }
3264
3265 static void
3266 prelight_or_select (GtkTreeView *tree_view,
3267                     GtkRBTree   *tree,
3268                     GtkRBNode   *node,
3269                     /* these are in bin_window coords */
3270                     gint         x,
3271                     gint         y)
3272 {
3273   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3274
3275   if (tree_view->priv->hover_selection &&
3276       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3277       !(tree_view->priv->edited_column &&
3278         tree_view->priv->edited_column->editable_widget))
3279     {
3280       if (node)
3281         {
3282           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3283             {
3284               GtkTreePath *path;
3285
3286               path = _gtk_tree_view_find_path (tree_view, tree, node);
3287               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3288               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3289                 {
3290                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3291                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3292                 }
3293               gtk_tree_path_free (path);
3294             }
3295         }
3296
3297       else if (mode == GTK_SELECTION_SINGLE)
3298         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3299     }
3300
3301     do_prelight (tree_view, tree, node, x, y);
3302 }
3303
3304 static void
3305 ensure_unprelighted (GtkTreeView *tree_view)
3306 {
3307   do_prelight (tree_view,
3308                NULL, NULL,
3309                -1000, -1000); /* coords not possibly over an arrow */
3310
3311   g_assert (tree_view->priv->prelight_node == NULL);
3312 }
3313
3314 static void
3315 update_prelight (GtkTreeView *tree_view,
3316                  gint         x,
3317                  gint         y)
3318 {
3319   int new_y;
3320   GtkRBTree *tree;
3321   GtkRBNode *node;
3322
3323   if (tree_view->priv->tree == NULL)
3324     return;
3325
3326   if (x == -10000)
3327     {
3328       ensure_unprelighted (tree_view);
3329       return;
3330     }
3331
3332   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
3333   if (new_y < 0)
3334     new_y = 0;
3335
3336   _gtk_rbtree_find_offset (tree_view->priv->tree,
3337                            new_y, &tree, &node);
3338
3339   if (node)
3340     prelight_or_select (tree_view, tree, node, x, y);
3341 }
3342
3343
3344
3345
3346 /* Our motion arrow is either a box (in the case of the original spot)
3347  * or an arrow.  It is expander_size wide.
3348  */
3349 /*
3350  * 11111111111111
3351  * 01111111111110
3352  * 00111111111100
3353  * 00011111111000
3354  * 00001111110000
3355  * 00000111100000
3356  * 00000111100000
3357  * 00000111100000
3358  * ~ ~ ~ ~ ~ ~ ~
3359  * 00000111100000
3360  * 00000111100000
3361  * 00000111100000
3362  * 00001111110000
3363  * 00011111111000
3364  * 00111111111100
3365  * 01111111111110
3366  * 11111111111111
3367  */
3368
3369 static void
3370 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3371 {
3372   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3373   GtkWidget *widget = GTK_WIDGET (tree_view);
3374   GdkBitmap *mask = NULL;
3375   gint x;
3376   gint y;
3377   gint width;
3378   gint height;
3379   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3380   GdkWindowAttr attributes;
3381   guint attributes_mask;
3382
3383   if (!reorder ||
3384       reorder->left_column == tree_view->priv->drag_column ||
3385       reorder->right_column == tree_view->priv->drag_column)
3386     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3387   else if (reorder->left_column || reorder->right_column)
3388     {
3389       GdkRectangle visible_rect;
3390       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3391       if (reorder->left_column)
3392         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3393       else
3394         x = reorder->right_column->button->allocation.x;
3395
3396       if (x < visible_rect.x)
3397         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3398       else if (x > visible_rect.x + visible_rect.width)
3399         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3400       else
3401         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3402     }
3403
3404   /* We want to draw the rectangle over the initial location. */
3405   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3406     {
3407       GdkGC *gc;
3408       GdkColor col;
3409
3410       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3411         {
3412           if (tree_view->priv->drag_highlight_window)
3413             {
3414               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3415                                         NULL);
3416               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3417             }
3418
3419           attributes.window_type = GDK_WINDOW_CHILD;
3420           attributes.wclass = GDK_INPUT_OUTPUT;
3421           attributes.x = tree_view->priv->drag_column_x;
3422           attributes.y = 0;
3423           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3424           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3425           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3426           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3427           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3428           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3429           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3430           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3431
3432           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3433           gc = gdk_gc_new (mask);
3434           col.pixel = 1;
3435           gdk_gc_set_foreground (gc, &col);
3436           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3437           col.pixel = 0;
3438           gdk_gc_set_foreground(gc, &col);
3439           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3440           g_object_unref (gc);
3441
3442           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3443                                          mask, 0, 0);
3444           if (mask) g_object_unref (mask);
3445           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3446         }
3447     }
3448   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3449     {
3450       gint i, j = 1;
3451       GdkGC *gc;
3452       GdkColor col;
3453
3454       width = tree_view->priv->expander_size;
3455
3456       /* Get x, y, width, height of arrow */
3457       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3458       if (reorder->left_column)
3459         {
3460           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3461           height = reorder->left_column->button->allocation.height;
3462         }
3463       else
3464         {
3465           x += reorder->right_column->button->allocation.x - width/2;
3466           height = reorder->right_column->button->allocation.height;
3467         }
3468       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3469       height += tree_view->priv->expander_size;
3470
3471       /* Create the new window */
3472       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3473         {
3474           if (tree_view->priv->drag_highlight_window)
3475             {
3476               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3477                                         NULL);
3478               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3479             }
3480
3481           attributes.window_type = GDK_WINDOW_TEMP;
3482           attributes.wclass = GDK_INPUT_OUTPUT;
3483           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3484           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3485           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3486           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3487           attributes.x = x;
3488           attributes.y = y;
3489           attributes.width = width;
3490           attributes.height = height;
3491           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3492                                                                    &attributes, attributes_mask);
3493           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3494
3495           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3496           gc = gdk_gc_new (mask);
3497           col.pixel = 1;
3498           gdk_gc_set_foreground (gc, &col);
3499           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3500
3501           /* Draw the 2 arrows as per above */
3502           col.pixel = 0;
3503           gdk_gc_set_foreground (gc, &col);
3504           for (i = 0; i < width; i ++)
3505             {
3506               if (i == (width/2 - 1))
3507                 continue;
3508               gdk_draw_line (mask, gc, i, j, i, height - j);
3509               if (i < (width/2 - 1))
3510                 j++;
3511               else
3512                 j--;
3513             }
3514           g_object_unref (gc);
3515           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3516                                          mask, 0, 0);
3517           if (mask) g_object_unref (mask);
3518         }
3519
3520       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3521       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3522     }
3523   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3524            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3525     {
3526       gint i, j = 1;
3527       GdkGC *gc;
3528       GdkColor col;
3529
3530       width = tree_view->priv->expander_size;
3531
3532       /* Get x, y, width, height of arrow */
3533       width = width/2; /* remember, the arrow only takes half the available width */
3534       gdk_window_get_origin (widget->window, &x, &y);
3535       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3536         x += widget->allocation.width - width;
3537
3538       if (reorder->left_column)
3539         height = reorder->left_column->button->allocation.height;
3540       else
3541         height = reorder->right_column->button->allocation.height;
3542
3543       y -= tree_view->priv->expander_size;
3544       height += 2*tree_view->priv->expander_size;
3545
3546       /* Create the new window */
3547       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3548           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3549         {
3550           if (tree_view->priv->drag_highlight_window)
3551             {
3552               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3553                                         NULL);
3554               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3555             }
3556
3557           attributes.window_type = GDK_WINDOW_TEMP;
3558           attributes.wclass = GDK_INPUT_OUTPUT;
3559           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3560           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3561           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3562           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3563           attributes.x = x;
3564           attributes.y = y;
3565           attributes.width = width;
3566           attributes.height = height;
3567           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3568           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3569
3570           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3571           gc = gdk_gc_new (mask);
3572           col.pixel = 1;
3573           gdk_gc_set_foreground (gc, &col);
3574           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3575
3576           /* Draw the 2 arrows as per above */
3577           col.pixel = 0;
3578           gdk_gc_set_foreground (gc, &col);
3579           j = tree_view->priv->expander_size;
3580           for (i = 0; i < width; i ++)
3581             {
3582               gint k;
3583               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3584                 k = width - i - 1;
3585               else
3586                 k = i;
3587               gdk_draw_line (mask, gc, k, j, k, height - j);
3588               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3589               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3590               j--;
3591             }
3592           g_object_unref (gc);
3593           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3594                                          mask, 0, 0);
3595           if (mask) g_object_unref (mask);
3596         }
3597
3598       tree_view->priv->drag_column_window_state = arrow_type;
3599       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3600    }
3601   else
3602     {
3603       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3604       gdk_window_hide (tree_view->priv->drag_highlight_window);
3605       return;
3606     }
3607
3608   gdk_window_show (tree_view->priv->drag_highlight_window);
3609   gdk_window_raise (tree_view->priv->drag_highlight_window);
3610 }
3611
3612 static gboolean
3613 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3614                                     GdkEventMotion *event)
3615 {
3616   gint x;
3617   gint new_width;
3618   GtkTreeViewColumn *column;
3619   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3620
3621   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3622
3623   if (event->is_hint || event->window != widget->window)
3624     gtk_widget_get_pointer (widget, &x, NULL);
3625   else
3626     x = event->x;
3627
3628   if (tree_view->priv->hadjustment)
3629     x += tree_view->priv->hadjustment->value;
3630
3631   new_width = gtk_tree_view_new_column_width (tree_view,
3632                                               tree_view->priv->drag_pos, &x);
3633   if (x != tree_view->priv->x_drag &&
3634       (new_width != column->fixed_width))
3635     {
3636       column->use_resized_width = TRUE;
3637       column->resized_width = new_width;
3638       if (column->expand)
3639         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3640       gtk_widget_queue_resize (widget);
3641     }
3642
3643   return FALSE;
3644 }
3645
3646
3647 static void
3648 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3649 {
3650   GtkTreeViewColumnReorder *reorder = NULL;
3651   GList *list;
3652   gint mouse_x;
3653
3654   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3655   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3656     {
3657       reorder = (GtkTreeViewColumnReorder *) list->data;
3658       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3659         break;
3660       reorder = NULL;
3661     }
3662
3663   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3664       return;*/
3665
3666   tree_view->priv->cur_reorder = reorder;
3667   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3668 }
3669
3670 static void
3671 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3672 {
3673   GdkRectangle visible_rect;
3674   gint y;
3675   gint offset;
3676   gfloat value;
3677
3678   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3679   y += tree_view->priv->dy;
3680
3681   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3682
3683   /* see if we are near the edge. */
3684   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3685   if (offset > 0)
3686     {
3687       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3688       if (offset < 0)
3689         return;
3690     }
3691
3692   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3693                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3694   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3695 }
3696
3697 static gboolean
3698 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3699 {
3700   GdkRectangle visible_rect;
3701   gint x;
3702   gint offset;
3703   gfloat value;
3704
3705   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3706
3707   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3708
3709   /* See if we are near the edge. */
3710   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3711   if (offset > 0)
3712     {
3713       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3714       if (offset < 0)
3715         return TRUE;
3716     }
3717   offset = offset/3;
3718
3719   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3720                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3721   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3722
3723   return TRUE;
3724
3725 }
3726
3727 static gboolean
3728 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3729                                   GdkEventMotion *event)
3730 {
3731   GtkTreeView *tree_view = (GtkTreeView *) widget;
3732   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3733   gint x, y;
3734
3735   /* Sanity Check */
3736   if ((column == NULL) ||
3737       (event->window != tree_view->priv->drag_window))
3738     return FALSE;
3739
3740   /* Handle moving the header */
3741   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3742   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3743              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3744   gdk_window_move (tree_view->priv->drag_window, x, y);
3745
3746   /* autoscroll, if needed */
3747   gtk_tree_view_horizontal_autoscroll (tree_view);
3748   /* Update the current reorder position and arrow; */
3749   gtk_tree_view_update_current_reorder (tree_view);
3750
3751   return TRUE;
3752 }
3753
3754 static void
3755 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3756 {
3757   remove_scroll_timeout (tree_view);
3758   gtk_grab_remove (GTK_WIDGET (tree_view));
3759
3760   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3761     {
3762       GtkTreePath *tmp_path;
3763
3764       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3765
3766       /* The anchor path should be set to the start path */
3767       tmp_path = _gtk_tree_view_find_path (tree_view,
3768                                            tree_view->priv->rubber_band_start_tree,
3769                                            tree_view->priv->rubber_band_start_node);
3770
3771       if (tree_view->priv->anchor)
3772         gtk_tree_row_reference_free (tree_view->priv->anchor);
3773
3774       tree_view->priv->anchor =
3775         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3776                                           tree_view->priv->model,
3777                                           tmp_path);
3778
3779       gtk_tree_path_free (tmp_path);
3780
3781       /* ... and the cursor to the end path */
3782       tmp_path = _gtk_tree_view_find_path (tree_view,
3783                                            tree_view->priv->rubber_band_end_tree,
3784                                            tree_view->priv->rubber_band_end_node);
3785       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3786       gtk_tree_path_free (tmp_path);
3787
3788       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3789     }
3790
3791   /* Clear status variables */
3792   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3793   tree_view->priv->rubber_band_shift = 0;
3794   tree_view->priv->rubber_band_ctrl = 0;
3795
3796   tree_view->priv->rubber_band_start_node = NULL;
3797   tree_view->priv->rubber_band_start_tree = NULL;
3798   tree_view->priv->rubber_band_end_node = NULL;
3799   tree_view->priv->rubber_band_end_tree = NULL;
3800 }
3801
3802 static void
3803 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3804                                                  GtkRBTree   *start_tree,
3805                                                  GtkRBNode   *start_node,
3806                                                  GtkRBTree   *end_tree,
3807                                                  GtkRBNode   *end_node,
3808                                                  gboolean     select,
3809                                                  gboolean     skip_start,
3810                                                  gboolean     skip_end)
3811 {
3812   if (start_node == end_node)
3813     return;
3814
3815   /* We skip the first node and jump inside the loop */
3816   if (skip_start)
3817     goto skip_first;
3818
3819   do
3820     {
3821       /* Small optimization by assuming insensitive nodes are never
3822        * selected.
3823        */
3824       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3825         {
3826           GtkTreePath *path;
3827           gboolean selectable;
3828
3829           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3830           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3831           gtk_tree_path_free (path);
3832
3833           if (!selectable)
3834             goto node_not_selectable;
3835         }
3836
3837       if (select)
3838         {
3839           if (tree_view->priv->rubber_band_shift)
3840             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3841           else if (tree_view->priv->rubber_band_ctrl)
3842             {
3843               /* Toggle the selection state */
3844               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3845                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3846               else
3847                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3848             }
3849           else
3850             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3851         }
3852       else
3853         {
3854           /* Mirror the above */
3855           if (tree_view->priv->rubber_band_shift)
3856             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3857           else if (tree_view->priv->rubber_band_ctrl)
3858             {
3859               /* Toggle the selection state */
3860               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3861                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3862               else
3863                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3864             }
3865           else
3866             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3867         }
3868
3869       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3870
3871 node_not_selectable:
3872       if (start_node == end_node)
3873         break;
3874
3875 skip_first:
3876
3877       if (start_node->children)
3878         {
3879           start_tree = start_node->children;
3880           start_node = start_tree->root;
3881           while (start_node->left != start_tree->nil)
3882             start_node = start_node->left;
3883         }
3884       else
3885         {
3886           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3887
3888           if (!start_tree)
3889             /* Ran out of tree */
3890             break;
3891         }
3892
3893       if (skip_end && start_node == end_node)
3894         break;
3895     }
3896   while (TRUE);
3897 }
3898
3899 static void
3900 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3901 {
3902   GtkRBTree *start_tree, *end_tree;
3903   GtkRBNode *start_node, *end_node;
3904
3905   _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);
3906   _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);
3907
3908   /* Handle the start area first */
3909   if (!tree_view->priv->rubber_band_start_node)
3910     {
3911       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3912                                                        start_tree,
3913                                                        start_node,
3914                                                        end_tree,
3915                                                        end_node,
3916                                                        TRUE,
3917                                                        FALSE,
3918                                                        FALSE);
3919     }
3920   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3921            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3922     {
3923       /* New node is above the old one; selection became bigger */
3924       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3925                                                        start_tree,
3926                                                        start_node,
3927                                                        tree_view->priv->rubber_band_start_tree,
3928                                                        tree_view->priv->rubber_band_start_node,
3929                                                        TRUE,
3930                                                        FALSE,
3931                                                        TRUE);
3932     }
3933   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3934            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3935     {
3936       /* New node is below the old one; selection became smaller */
3937       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3938                                                        tree_view->priv->rubber_band_start_tree,
3939                                                        tree_view->priv->rubber_band_start_node,
3940                                                        start_tree,
3941                                                        start_node,
3942                                                        FALSE,
3943                                                        FALSE,
3944                                                        TRUE);
3945     }
3946
3947   tree_view->priv->rubber_band_start_tree = start_tree;
3948   tree_view->priv->rubber_band_start_node = start_node;
3949
3950   /* Next, handle the end area */
3951   if (!tree_view->priv->rubber_band_end_node)
3952     {
3953       /* In the event this happens, start_node was also NULL; this case is
3954        * handled above.
3955        */
3956     }
3957   else if (!end_node)
3958     {
3959       /* Find the last node in the tree */
3960       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3961                                &end_tree, &end_node);
3962
3963       /* Selection reached end of the tree */
3964       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3965                                                        tree_view->priv->rubber_band_end_tree,
3966                                                        tree_view->priv->rubber_band_end_node,
3967                                                        end_tree,
3968                                                        end_node,
3969                                                        TRUE,
3970                                                        TRUE,
3971                                                        FALSE);
3972     }
3973   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3974            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3975     {
3976       /* New node is below the old one; selection became bigger */
3977       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3978                                                        tree_view->priv->rubber_band_end_tree,
3979                                                        tree_view->priv->rubber_band_end_node,
3980                                                        end_tree,
3981                                                        end_node,
3982                                                        TRUE,
3983                                                        TRUE,
3984                                                        FALSE);
3985     }
3986   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3987            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3988     {
3989       /* New node is above the old one; selection became smaller */
3990       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3991                                                        end_tree,
3992                                                        end_node,
3993                                                        tree_view->priv->rubber_band_end_tree,
3994                                                        tree_view->priv->rubber_band_end_node,
3995                                                        FALSE,
3996                                                        TRUE,
3997                                                        FALSE);
3998     }
3999
4000   tree_view->priv->rubber_band_end_tree = end_tree;
4001   tree_view->priv->rubber_band_end_node = end_node;
4002 }
4003
4004 static void
4005 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
4006 {
4007   gint x, y;
4008   GdkRectangle old_area;
4009   GdkRectangle new_area;
4010   GdkRectangle common;
4011   GdkRegion *invalid_region;
4012
4013   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4014   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4015   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
4016   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
4017
4018   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
4019
4020   x = MAX (x, 0);
4021   y = MAX (y, 0) + tree_view->priv->dy;
4022
4023   new_area.x = MIN (tree_view->priv->press_start_x, x);
4024   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
4025   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
4026   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
4027
4028   invalid_region = gdk_region_rectangle (&old_area);
4029   gdk_region_union_with_rect (invalid_region, &new_area);
4030
4031   gdk_rectangle_intersect (&old_area, &new_area, &common);
4032   if (common.width > 2 && common.height > 2)
4033     {
4034       GdkRegion *common_region;
4035
4036       /* make sure the border is invalidated */
4037       common.x += 1;
4038       common.y += 1;
4039       common.width -= 2;
4040       common.height -= 2;
4041
4042       common_region = gdk_region_rectangle (&common);
4043
4044       gdk_region_subtract (invalid_region, common_region);
4045       gdk_region_destroy (common_region);
4046     }
4047
4048   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
4049
4050   gdk_region_destroy (invalid_region);
4051
4052   tree_view->priv->rubber_band_x = x;
4053   tree_view->priv->rubber_band_y = y;
4054
4055   gtk_tree_view_update_rubber_band_selection (tree_view);
4056 }
4057
4058 static void
4059 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
4060                                 GdkRectangle *area)
4061 {
4062   cairo_t *cr;
4063   GdkRectangle rect;
4064   GdkRectangle rubber_rect;
4065
4066   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4067   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4068   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4069   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4070
4071   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4072     return;
4073
4074   cr = gdk_cairo_create (tree_view->priv->bin_window);
4075   cairo_set_line_width (cr, 1.0);
4076
4077   cairo_set_source_rgba (cr,
4078                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4079                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4080                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4081                          .25);
4082
4083   gdk_cairo_rectangle (cr, &rect);
4084   cairo_clip (cr);
4085   cairo_paint (cr);
4086
4087   cairo_set_source_rgb (cr,
4088                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4089                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4090                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4091
4092   cairo_rectangle (cr,
4093                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4094                    rubber_rect.width - 1, rubber_rect.height - 1);
4095   cairo_stroke (cr);
4096
4097   cairo_destroy (cr);
4098 }
4099
4100 static gboolean
4101 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4102                                  GdkEventMotion *event)
4103 {
4104   GtkTreeView *tree_view;
4105   GtkRBTree *tree;
4106   GtkRBNode *node;
4107   gint new_y;
4108
4109   tree_view = (GtkTreeView *) widget;
4110
4111   if (tree_view->priv->tree == NULL)
4112     return FALSE;
4113
4114   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4115     {
4116       gtk_grab_add (GTK_WIDGET (tree_view));
4117       gtk_tree_view_update_rubber_band (tree_view);
4118
4119       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4120     }
4121   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4122     {
4123       gtk_tree_view_update_rubber_band (tree_view);
4124
4125       add_scroll_timeout (tree_view);
4126     }
4127
4128   /* only check for an initiated drag when a button is pressed */
4129   if (tree_view->priv->pressed_button >= 0
4130       && !tree_view->priv->rubber_band_status)
4131     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4132
4133   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4134   if (new_y < 0)
4135     new_y = 0;
4136
4137   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4138
4139   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4140   if ((tree_view->priv->button_pressed_node != NULL) &&
4141       (tree_view->priv->button_pressed_node != node))
4142     node = NULL;
4143
4144   tree_view->priv->event_last_x = event->x;
4145   tree_view->priv->event_last_y = event->y;
4146
4147   prelight_or_select (tree_view, tree, node, event->x, event->y);
4148
4149   return TRUE;
4150 }
4151
4152 static gboolean
4153 gtk_tree_view_motion (GtkWidget      *widget,
4154                       GdkEventMotion *event)
4155 {
4156   GtkTreeView *tree_view;
4157
4158   tree_view = (GtkTreeView *) widget;
4159
4160   /* Resizing a column */
4161   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4162     return gtk_tree_view_motion_resize_column (widget, event);
4163
4164   /* Drag column */
4165   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4166     return gtk_tree_view_motion_drag_column (widget, event);
4167
4168   /* Sanity check it */
4169   if (event->window == tree_view->priv->bin_window)
4170     return gtk_tree_view_motion_bin_window (widget, event);
4171
4172   return FALSE;
4173 }
4174
4175 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4176  * the tree is empty.
4177  */
4178 static void
4179 invalidate_empty_focus (GtkTreeView *tree_view)
4180 {
4181   GdkRectangle area;
4182
4183   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
4184     return;
4185
4186   area.x = 0;
4187   area.y = 0;
4188   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4189   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4190 }
4191
4192 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4193  * is empty.
4194  */
4195 static void
4196 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4197 {
4198   gint w, h;
4199
4200   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
4201     return;
4202
4203   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4204
4205   w -= 2;
4206   h -= 2;
4207
4208   if (w > 0 && h > 0)
4209     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4210                      tree_view->priv->bin_window,
4211                      GTK_WIDGET_STATE (tree_view),
4212                      clip_area,
4213                      GTK_WIDGET (tree_view),
4214                      NULL,
4215                      1, 1, w, h);
4216 }
4217
4218 static void
4219 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4220                                GdkEventExpose *event,
4221                                gint            n_visible_columns)
4222 {
4223   GList *list = tree_view->priv->columns;
4224   gint i = 0;
4225   gint current_x = 0;
4226
4227   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4228       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4229     return;
4230
4231   /* Only draw the lines for visible rows and columns */
4232   for (list = tree_view->priv->columns; list; list = list->next, i++)
4233     {
4234       GtkTreeViewColumn *column = list->data;
4235
4236       /* We don't want a line for the last column */
4237       if (i == n_visible_columns - 1)
4238         break;
4239
4240       if (! column->visible)
4241         continue;
4242
4243       current_x += column->width;
4244
4245       gdk_draw_line (event->window,
4246                      tree_view->priv->grid_line_gc,
4247                      current_x - 1, 0,
4248                      current_x - 1, tree_view->priv->height);
4249     }
4250 }
4251
4252 /* Warning: Very scary function.
4253  * Modify at your own risk
4254  *
4255  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4256  * FIXME: It's not...
4257  */
4258 static gboolean
4259 gtk_tree_view_bin_expose (GtkWidget      *widget,
4260                           GdkEventExpose *event)
4261 {
4262   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4263   GtkTreePath *path;
4264   GtkRBTree *tree;
4265   GList *list;
4266   GtkRBNode *node;
4267   GtkRBNode *cursor = NULL;
4268   GtkRBTree *cursor_tree = NULL;
4269   GtkRBNode *drag_highlight = NULL;
4270   GtkRBTree *drag_highlight_tree = NULL;
4271   GtkTreeIter iter;
4272   gint new_y;
4273   gint y_offset, cell_offset;
4274   gint max_height;
4275   gint depth;
4276   GdkRectangle background_area;
4277   GdkRectangle cell_area;
4278   guint flags;
4279   gint highlight_x;
4280   gint expander_cell_width;
4281   gint bin_window_width;
4282   gint bin_window_height;
4283   GtkTreePath *cursor_path;
4284   GtkTreePath *drag_dest_path;
4285   GList *first_column, *last_column;
4286   gint vertical_separator;
4287   gint horizontal_separator;
4288   gint focus_line_width;
4289   gboolean allow_rules;
4290   gboolean has_special_cell;
4291   gboolean rtl;
4292   gint n_visible_columns;
4293   gint pointer_x, pointer_y;
4294   gint grid_line_width;
4295   gboolean got_pointer = FALSE;
4296   gboolean row_ending_details;
4297   gboolean draw_vgrid_lines, draw_hgrid_lines;
4298
4299   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4300
4301   gtk_widget_style_get (widget,
4302                         "horizontal-separator", &horizontal_separator,
4303                         "vertical-separator", &vertical_separator,
4304                         "allow-rules", &allow_rules,
4305                         "focus-line-width", &focus_line_width,
4306                         "row-ending-details", &row_ending_details,
4307                         NULL);
4308
4309   if (tree_view->priv->tree == NULL)
4310     {
4311       draw_empty_focus (tree_view, &event->area);
4312       return TRUE;
4313     }
4314
4315   /* clip event->area to the visible area */
4316   if (event->area.height < 0)
4317     return TRUE;
4318
4319   validate_visible_area (tree_view);
4320
4321   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4322
4323   if (new_y < 0)
4324     new_y = 0;
4325   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4326   gdk_drawable_get_size (tree_view->priv->bin_window,
4327                          &bin_window_width, &bin_window_height);
4328
4329   if (tree_view->priv->height < bin_window_height)
4330     {
4331       gtk_paint_flat_box (widget->style,
4332                           event->window,
4333                           widget->state,
4334                           GTK_SHADOW_NONE,
4335                           &event->area,
4336                           widget,
4337                           "cell_even",
4338                           0, tree_view->priv->height,
4339                           bin_window_width,
4340                           bin_window_height - tree_view->priv->height);
4341     }
4342
4343   if (node == NULL)
4344     return TRUE;
4345
4346   /* find the path for the node */
4347   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4348                                    tree,
4349                                    node);
4350   gtk_tree_model_get_iter (tree_view->priv->model,
4351                            &iter,
4352                            path);
4353   depth = gtk_tree_path_get_depth (path);
4354   gtk_tree_path_free (path);
4355
4356   cursor_path = NULL;
4357   drag_dest_path = NULL;
4358
4359   if (tree_view->priv->cursor)
4360     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4361
4362   if (cursor_path)
4363     _gtk_tree_view_find_node (tree_view, cursor_path,
4364                               &cursor_tree, &cursor);
4365
4366   if (tree_view->priv->drag_dest_row)
4367     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4368
4369   if (drag_dest_path)
4370     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4371                               &drag_highlight_tree, &drag_highlight);
4372
4373   draw_vgrid_lines =
4374     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4375     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4376   draw_hgrid_lines =
4377     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4378     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4379
4380   if (draw_vgrid_lines || draw_hgrid_lines)
4381     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4382
4383   n_visible_columns = 0;
4384   for (list = tree_view->priv->columns; list; list = list->next)
4385     {
4386       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4387         continue;
4388       n_visible_columns ++;
4389     }
4390
4391   /* Find the last column */
4392   for (last_column = g_list_last (tree_view->priv->columns);
4393        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4394        last_column = last_column->prev)
4395     ;
4396
4397   /* and the first */
4398   for (first_column = g_list_first (tree_view->priv->columns);
4399        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4400        first_column = first_column->next)
4401     ;
4402
4403   /* Actually process the expose event.  To do this, we want to
4404    * start at the first node of the event, and walk the tree in
4405    * order, drawing each successive node.
4406    */
4407
4408   do
4409     {
4410       gboolean parity;
4411       gboolean is_separator = FALSE;
4412       gboolean is_first = FALSE;
4413       gboolean is_last = FALSE;
4414
4415       is_separator = row_is_separator (tree_view, &iter, NULL);
4416
4417       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4418
4419       cell_offset = 0;
4420       highlight_x = 0; /* should match x coord of first cell */
4421       expander_cell_width = 0;
4422
4423       background_area.y = y_offset + event->area.y;
4424       background_area.height = max_height;
4425
4426       flags = 0;
4427
4428       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4429         flags |= GTK_CELL_RENDERER_PRELIT;
4430
4431       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4432         flags |= GTK_CELL_RENDERER_SELECTED;
4433
4434       parity = _gtk_rbtree_node_find_parity (tree, node);
4435
4436       /* we *need* to set cell data on all cells before the call
4437        * to _has_special_cell, else _has_special_cell() does not
4438        * return a correct value.
4439        */
4440       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4441            list;
4442            list = (rtl ? list->prev : list->next))
4443         {
4444           GtkTreeViewColumn *column = list->data;
4445           gtk_tree_view_column_cell_set_cell_data (column,
4446                                                    tree_view->priv->model,
4447                                                    &iter,
4448                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4449                                                    node->children?TRUE:FALSE);
4450         }
4451
4452       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4453
4454       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4455            list;
4456            list = (rtl ? list->prev : list->next))
4457         {
4458           GtkTreeViewColumn *column = list->data;
4459           const gchar *detail = NULL;
4460           GtkStateType state;
4461
4462           if (!column->visible)
4463             continue;
4464
4465           if (cell_offset > event->area.x + event->area.width ||
4466               cell_offset + column->width < event->area.x)
4467             {
4468               cell_offset += column->width;
4469               continue;
4470             }
4471
4472           if (column->show_sort_indicator)
4473             flags |= GTK_CELL_RENDERER_SORTED;
4474           else
4475             flags &= ~GTK_CELL_RENDERER_SORTED;
4476
4477           if (cursor == node)
4478             flags |= GTK_CELL_RENDERER_FOCUSED;
4479           else
4480             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4481
4482           background_area.x = cell_offset;
4483           background_area.width = column->width;
4484
4485           cell_area = background_area;
4486           cell_area.y += vertical_separator / 2;
4487           cell_area.x += horizontal_separator / 2;
4488           cell_area.height -= vertical_separator;
4489           cell_area.width -= horizontal_separator;
4490
4491           if (draw_vgrid_lines)
4492             {
4493               if (list == first_column)
4494                 {
4495                   cell_area.width -= grid_line_width / 2;
4496                 }
4497               else if (list == last_column)
4498                 {
4499                   cell_area.x += grid_line_width / 2;
4500                   cell_area.width -= grid_line_width / 2;
4501                 }
4502               else
4503                 {
4504                   cell_area.x += grid_line_width / 2;
4505                   cell_area.width -= grid_line_width;
4506                 }
4507             }
4508
4509           if (draw_hgrid_lines)
4510             {
4511               cell_area.y += grid_line_width / 2;
4512               cell_area.height -= grid_line_width;
4513             }
4514
4515           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4516             {
4517               cell_offset += column->width;
4518               continue;
4519             }
4520
4521           gtk_tree_view_column_cell_set_cell_data (column,
4522                                                    tree_view->priv->model,
4523                                                    &iter,
4524                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4525                                                    node->children?TRUE:FALSE);
4526
4527           /* Select the detail for drawing the cell.  relevant
4528            * factors are parity, sortedness, and whether to
4529            * display rules.
4530            */
4531           if (allow_rules && tree_view->priv->has_rules)
4532             {
4533               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4534                   n_visible_columns >= 3)
4535                 {
4536                   if (parity)
4537                     detail = "cell_odd_ruled_sorted";
4538                   else
4539                     detail = "cell_even_ruled_sorted";
4540                 }
4541               else
4542                 {
4543                   if (parity)
4544                     detail = "cell_odd_ruled";
4545                   else
4546                     detail = "cell_even_ruled";
4547                 }
4548             }
4549           else
4550             {
4551               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4552                   n_visible_columns >= 3)
4553                 {
4554                   if (parity)
4555                     detail = "cell_odd_sorted";
4556                   else
4557                     detail = "cell_even_sorted";
4558                 }
4559               else
4560                 {
4561                   if (parity)
4562                     detail = "cell_odd";
4563                   else
4564                     detail = "cell_even";
4565                 }
4566             }
4567
4568           g_assert (detail);
4569
4570           if (widget->state == GTK_STATE_INSENSITIVE)
4571             state = GTK_STATE_INSENSITIVE;
4572           else if (flags & GTK_CELL_RENDERER_SELECTED)
4573             state = GTK_STATE_SELECTED;
4574           else
4575             state = GTK_STATE_NORMAL;
4576
4577           /* Draw background */
4578           if (row_ending_details)
4579             {
4580               char new_detail[128];
4581
4582               is_first = (rtl ? !list->next : !list->prev);
4583               is_last = (rtl ? !list->prev : !list->next);
4584
4585               /* (I don't like the snprintfs either, but couldn't find a
4586                * less messy way).
4587                */
4588               if (is_first && is_last)
4589                 g_snprintf (new_detail, 127, "%s", detail);
4590               else if (is_first)
4591                 g_snprintf (new_detail, 127, "%s_start", detail);
4592               else if (is_last)
4593                 g_snprintf (new_detail, 127, "%s_end", detail);
4594               else
4595                 g_snprintf (new_detail, 128, "%s_middle", detail);
4596
4597               gtk_paint_flat_box (widget->style,
4598                                   event->window,
4599                                   state,
4600                                   GTK_SHADOW_NONE,
4601                                   &event->area,
4602                                   widget,
4603                                   new_detail,
4604                                   background_area.x,
4605                                   background_area.y,
4606                                   background_area.width,
4607                                   background_area.height);
4608             }
4609           else
4610             {
4611               gtk_paint_flat_box (widget->style,
4612                                   event->window,
4613                                   state,
4614                                   GTK_SHADOW_NONE,
4615                                   &event->area,
4616                                   widget,
4617                                   detail,
4618                                   background_area.x,
4619                                   background_area.y,
4620                                   background_area.width,
4621                                   background_area.height);
4622             }
4623
4624           if (draw_hgrid_lines)
4625             {
4626               if (background_area.y > 0)
4627                 gdk_draw_line (event->window,
4628                                tree_view->priv->grid_line_gc,
4629                                background_area.x, background_area.y,
4630                                background_area.x + background_area.width,
4631                                background_area.y);
4632
4633               if (y_offset + max_height >= event->area.height)
4634                 gdk_draw_line (event->window,
4635                                tree_view->priv->grid_line_gc,
4636                                background_area.x, background_area.y + max_height,
4637                                background_area.x + background_area.width,
4638                                background_area.y + max_height);
4639             }
4640
4641           if (gtk_tree_view_is_expander_column (tree_view, column))
4642             {
4643               if (!rtl)
4644                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4645               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4646
4647               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4648                 {
4649                   if (!rtl)
4650                     cell_area.x += depth * tree_view->priv->expander_size;
4651                   cell_area.width -= depth * tree_view->priv->expander_size;
4652                 }
4653
4654               /* If we have an expander column, the highlight underline
4655                * starts with that column, so that it indicates which
4656                * level of the tree we're dropping at.
4657                */
4658               highlight_x = cell_area.x;
4659               expander_cell_width = cell_area.width;
4660
4661               if (is_separator)
4662                 gtk_paint_hline (widget->style,
4663                                  event->window,
4664                                  state,
4665                                  &cell_area,
4666                                  widget,
4667                                  NULL,
4668                                  cell_area.x,
4669                                  cell_area.x + cell_area.width,
4670                                  cell_area.y + cell_area.height / 2);
4671               else
4672                 _gtk_tree_view_column_cell_render (column,
4673                                                    event->window,
4674                                                    &background_area,
4675                                                    &cell_area,
4676                                                    &event->area,
4677                                                    flags);
4678               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4679                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4680                 {
4681                   if (!got_pointer)
4682                     {
4683                       gdk_window_get_pointer (tree_view->priv->bin_window,
4684                                               &pointer_x, &pointer_y, NULL);
4685                       got_pointer = TRUE;
4686                     }
4687
4688                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4689                                             tree,
4690                                             node,
4691                                             pointer_x, pointer_y);
4692                 }
4693             }
4694           else
4695             {
4696               if (is_separator)
4697                 gtk_paint_hline (widget->style,
4698                                  event->window,
4699                                  state,
4700                                  &cell_area,
4701                                  widget,
4702                                  NULL,
4703                                  cell_area.x,
4704                                  cell_area.x + cell_area.width,
4705                                  cell_area.y + cell_area.height / 2);
4706               else
4707                 _gtk_tree_view_column_cell_render (column,
4708                                                    event->window,
4709                                                    &background_area,
4710                                                    &cell_area,
4711                                                    &event->area,
4712                                                    flags);
4713             }
4714
4715           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4716               tree_view->priv->tree_lines_enabled)
4717             {
4718               gint x = background_area.x;
4719               gint mult = rtl ? -1 : 1;
4720               gint y0 = background_area.y;
4721               gint y1 = background_area.y + background_area.height/2;
4722               gint y2 = background_area.y + background_area.height;
4723
4724               if (rtl)
4725                 x += background_area.width - 1;
4726
4727               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4728                   && depth > 1)
4729                 {
4730                   gdk_draw_line (event->window,
4731                                  tree_view->priv->tree_line_gc,
4732                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4733                                  y1,
4734                                  x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4735                                  y1);
4736                 }
4737               else if (depth > 1)
4738                 {
4739                   gdk_draw_line (event->window,
4740                                  tree_view->priv->tree_line_gc,
4741                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4742                                  y1,
4743                                  x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4744                                  y1);
4745                 }
4746
4747               if (depth > 1)
4748                 {
4749                   gint i;
4750                   GtkRBNode *tmp_node;
4751                   GtkRBTree *tmp_tree;
4752
4753                   if (!_gtk_rbtree_next (tree, node))
4754                     gdk_draw_line (event->window,
4755                                    tree_view->priv->tree_line_gc,
4756                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4757                                    y0,
4758                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4759                                    y1);
4760                   else
4761                     gdk_draw_line (event->window,
4762                                    tree_view->priv->tree_line_gc,
4763                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4764                                    y0,
4765                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4766                                    y2);
4767
4768                   tmp_node = tree->parent_node;
4769                   tmp_tree = tree->parent_tree;
4770
4771                   for (i = depth - 2; i > 0; i--)
4772                     {
4773                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4774                         gdk_draw_line (event->window,
4775                                        tree_view->priv->tree_line_gc,
4776                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4777                                        y0,
4778                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4779                                        y2);
4780
4781                       tmp_node = tmp_tree->parent_node;
4782                       tmp_tree = tmp_tree->parent_tree;
4783                     }
4784                 }
4785             }
4786
4787           if (node == cursor && has_special_cell &&
4788               ((column == tree_view->priv->focus_column &&
4789                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4790                 gtk_widget_has_focus (widget)) ||
4791                (column == tree_view->priv->edited_column)))
4792             {
4793               _gtk_tree_view_column_cell_draw_focus (column,
4794                                                      event->window,
4795                                                      &background_area,
4796                                                      &cell_area,
4797                                                      &event->area,
4798                                                      flags);
4799             }
4800
4801           cell_offset += column->width;
4802         }
4803
4804       if (node == drag_highlight)
4805         {
4806           /* Draw indicator for the drop
4807            */
4808           gint highlight_y = -1;
4809           GtkRBTree *tree = NULL;
4810           GtkRBNode *node = NULL;
4811           gint width;
4812
4813           switch (tree_view->priv->drag_dest_pos)
4814             {
4815             case GTK_TREE_VIEW_DROP_BEFORE:
4816               highlight_y = background_area.y - 1;
4817               if (highlight_y < 0)
4818                       highlight_y = 0;
4819               break;
4820
4821             case GTK_TREE_VIEW_DROP_AFTER:
4822               highlight_y = background_area.y + background_area.height - 1;
4823               break;
4824
4825             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4826             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4827               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4828
4829               if (tree == NULL)
4830                 break;
4831               gdk_drawable_get_size (tree_view->priv->bin_window,
4832                                      &width, NULL);
4833
4834               if (row_ending_details)
4835                 gtk_paint_focus (widget->style,
4836                                  tree_view->priv->bin_window,
4837                                  GTK_WIDGET_STATE (widget),
4838                                  &event->area,
4839                                  widget,
4840                                  (is_first
4841                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4842                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4843                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4844                                  - focus_line_width / 2,
4845                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4846                                - focus_line_width + 1);
4847               else
4848                 gtk_paint_focus (widget->style,
4849                                  tree_view->priv->bin_window,
4850                                  GTK_WIDGET_STATE (widget),
4851                                  &event->area,
4852                                  widget,
4853                                  "treeview-drop-indicator",
4854                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4855                                  - focus_line_width / 2,
4856                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4857                                  - focus_line_width + 1);
4858               break;
4859             }
4860
4861           if (highlight_y >= 0)
4862             {
4863               gdk_draw_line (event->window,
4864                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4865                              rtl ? highlight_x + expander_cell_width : highlight_x,
4866                              highlight_y,
4867                              rtl ? 0 : bin_window_width,
4868                              highlight_y);
4869             }
4870         }
4871
4872       /* draw the big row-spanning focus rectangle, if needed */
4873       if (!has_special_cell && node == cursor &&
4874           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4875           gtk_widget_has_focus (widget))
4876         {
4877           gint tmp_y, tmp_height;
4878           gint width;
4879           GtkStateType focus_rect_state;
4880
4881           focus_rect_state =
4882             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4883             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4884              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4885               GTK_STATE_NORMAL));
4886
4887           gdk_drawable_get_size (tree_view->priv->bin_window,
4888                                  &width, NULL);
4889
4890           if (draw_hgrid_lines)
4891             {
4892               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4893               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4894             }
4895           else
4896             {
4897               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4898               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4899             }
4900
4901           if (row_ending_details)
4902             gtk_paint_focus (widget->style,
4903                              tree_view->priv->bin_window,
4904                              focus_rect_state,
4905                              &event->area,
4906                              widget,
4907                              (is_first
4908                               ? (is_last ? "treeview" : "treeview-left" )
4909                               : (is_last ? "treeview-right" : "treeview-middle" )),
4910                              0, tmp_y,
4911                              width, tmp_height);
4912           else
4913             gtk_paint_focus (widget->style,
4914                              tree_view->priv->bin_window,
4915                              focus_rect_state,
4916                              &event->area,
4917                              widget,
4918                              "treeview",
4919                              0, tmp_y,
4920                              width, tmp_height);
4921         }
4922
4923       y_offset += max_height;
4924       if (node->children)
4925         {
4926           GtkTreeIter parent = iter;
4927           gboolean has_child;
4928
4929           tree = node->children;
4930           node = tree->root;
4931
4932           g_assert (node != tree->nil);
4933
4934           while (node->left != tree->nil)
4935             node = node->left;
4936           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4937                                                     &iter,
4938                                                     &parent);
4939           depth++;
4940
4941           /* Sanity Check! */
4942           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4943         }
4944       else
4945         {
4946           gboolean done = FALSE;
4947
4948           do
4949             {
4950               node = _gtk_rbtree_next (tree, node);
4951               if (node != NULL)
4952                 {
4953                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4954                   done = TRUE;
4955
4956                   /* Sanity Check! */
4957                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4958                 }
4959               else
4960                 {
4961                   GtkTreeIter parent_iter = iter;
4962                   gboolean has_parent;
4963
4964                   node = tree->parent_node;
4965                   tree = tree->parent_tree;
4966                   if (tree == NULL)
4967                     /* we should go to done to free some memory */
4968                     goto done;
4969                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4970                                                            &iter,
4971                                                            &parent_iter);
4972                   depth--;
4973
4974                   /* Sanity check */
4975                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4976                 }
4977             }
4978           while (!done);
4979         }
4980     }
4981   while (y_offset < event->area.height);
4982
4983 done:
4984   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4985
4986  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4987    {
4988      GdkRectangle *rectangles;
4989      gint n_rectangles;
4990
4991      gdk_region_get_rectangles (event->region,
4992                                 &rectangles,
4993                                 &n_rectangles);
4994
4995      while (n_rectangles--)
4996        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4997
4998      g_free (rectangles);
4999    }
5000
5001   if (cursor_path)
5002     gtk_tree_path_free (cursor_path);
5003
5004   if (drag_dest_path)
5005     gtk_tree_path_free (drag_dest_path);
5006
5007   return FALSE;
5008 }
5009
5010 static gboolean
5011 gtk_tree_view_expose (GtkWidget      *widget,
5012                       GdkEventExpose *event)
5013 {
5014   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5015
5016   if (event->window == tree_view->priv->bin_window)
5017     {
5018       gboolean retval;
5019       GList *tmp_list;
5020
5021       retval = gtk_tree_view_bin_expose (widget, event);
5022
5023       /* We can't just chain up to Container::expose as it will try to send the
5024        * event to the headers, so we handle propagating it to our children
5025        * (eg. widgets being edited) ourselves.
5026        */
5027       tmp_list = tree_view->priv->children;
5028       while (tmp_list)
5029         {
5030           GtkTreeViewChild *child = tmp_list->data;
5031           tmp_list = tmp_list->next;
5032
5033           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
5034         }
5035
5036       return retval;
5037     }
5038
5039   else if (event->window == tree_view->priv->header_window)
5040     {
5041       GList *list;
5042
5043       for (list = tree_view->priv->columns; list != NULL; list = list->next)
5044         {
5045           GtkTreeViewColumn *column = list->data;
5046
5047           if (column == tree_view->priv->drag_column)
5048             continue;
5049
5050           if (column->visible)
5051             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5052                                             column->button,
5053                                             event);
5054         }
5055     }
5056   else if (event->window == tree_view->priv->drag_window)
5057     {
5058       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5059                                       tree_view->priv->drag_column->button,
5060                                       event);
5061     }
5062   return TRUE;
5063 }
5064
5065 enum
5066 {
5067   DROP_HOME,
5068   DROP_RIGHT,
5069   DROP_LEFT,
5070   DROP_END
5071 };
5072
5073 /* returns 0x1 when no column has been found -- yes it's hackish */
5074 static GtkTreeViewColumn *
5075 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5076                                GtkTreeViewColumn *column,
5077                                gint               drop_position)
5078 {
5079   GtkTreeViewColumn *left_column = NULL;
5080   GtkTreeViewColumn *cur_column = NULL;
5081   GList *tmp_list;
5082
5083   if (!column->reorderable)
5084     return (GtkTreeViewColumn *)0x1;
5085
5086   switch (drop_position)
5087     {
5088       case DROP_HOME:
5089         /* find first column where we can drop */
5090         tmp_list = tree_view->priv->columns;
5091         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5092           return (GtkTreeViewColumn *)0x1;
5093
5094         while (tmp_list)
5095           {
5096             g_assert (tmp_list);
5097
5098             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5099             tmp_list = tmp_list->next;
5100
5101             if (left_column && left_column->visible == FALSE)
5102               continue;
5103
5104             if (!tree_view->priv->column_drop_func)
5105               return left_column;
5106
5107             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5108               {
5109                 left_column = cur_column;
5110                 continue;
5111               }
5112
5113             return left_column;
5114           }
5115
5116         if (!tree_view->priv->column_drop_func)
5117           return left_column;
5118
5119         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5120           return left_column;
5121         else
5122           return (GtkTreeViewColumn *)0x1;
5123         break;
5124
5125       case DROP_RIGHT:
5126         /* find first column after column where we can drop */
5127         tmp_list = tree_view->priv->columns;
5128
5129         for (; tmp_list; tmp_list = tmp_list->next)
5130           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5131             break;
5132
5133         if (!tmp_list || !tmp_list->next)
5134           return (GtkTreeViewColumn *)0x1;
5135
5136         tmp_list = tmp_list->next;
5137         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5138         tmp_list = tmp_list->next;
5139
5140         while (tmp_list)
5141           {
5142             g_assert (tmp_list);
5143
5144             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5145             tmp_list = tmp_list->next;
5146
5147             if (left_column && left_column->visible == FALSE)
5148               {
5149                 left_column = cur_column;
5150                 if (tmp_list)
5151                   tmp_list = tmp_list->next;
5152                 continue;
5153               }
5154
5155             if (!tree_view->priv->column_drop_func)
5156               return left_column;
5157
5158             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5159               {
5160                 left_column = cur_column;
5161                 continue;
5162               }
5163
5164             return left_column;
5165           }
5166
5167         if (!tree_view->priv->column_drop_func)
5168           return left_column;
5169
5170         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5171           return left_column;
5172         else
5173           return (GtkTreeViewColumn *)0x1;
5174         break;
5175
5176       case DROP_LEFT:
5177         /* find first column before column where we can drop */
5178         tmp_list = tree_view->priv->columns;
5179
5180         for (; tmp_list; tmp_list = tmp_list->next)
5181           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5182             break;
5183
5184         if (!tmp_list || !tmp_list->prev)
5185           return (GtkTreeViewColumn *)0x1;
5186
5187         tmp_list = tmp_list->prev;
5188         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5189         tmp_list = tmp_list->prev;
5190
5191         while (tmp_list)
5192           {
5193             g_assert (tmp_list);
5194
5195             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5196
5197             if (left_column && !left_column->visible)
5198               {
5199                 /*if (!tmp_list->prev)
5200                   return (GtkTreeViewColumn *)0x1;
5201                   */
5202 /*
5203                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5204                 tmp_list = tmp_list->prev->prev;
5205                 continue;*/
5206
5207                 cur_column = left_column;
5208                 if (tmp_list)
5209                   tmp_list = tmp_list->prev;
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               return left_column;
5218
5219             cur_column = left_column;
5220             tmp_list = tmp_list->prev;
5221           }
5222
5223         if (!tree_view->priv->column_drop_func)
5224           return NULL;
5225
5226         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5227           return NULL;
5228         else
5229           return (GtkTreeViewColumn *)0x1;
5230         break;
5231
5232       case DROP_END:
5233         /* same as DROP_HOME case, but doing it backwards */
5234         tmp_list = g_list_last (tree_view->priv->columns);
5235         cur_column = NULL;
5236
5237         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5238           return (GtkTreeViewColumn *)0x1;
5239
5240         while (tmp_list)
5241           {
5242             g_assert (tmp_list);
5243
5244             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5245
5246             if (left_column && !left_column->visible)
5247               {
5248                 cur_column = left_column;
5249                 tmp_list = tmp_list->prev;
5250               }
5251
5252             if (!tree_view->priv->column_drop_func)
5253               return left_column;
5254
5255             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5256               return left_column;
5257
5258             cur_column = left_column;
5259             tmp_list = tmp_list->prev;
5260           }
5261
5262         if (!tree_view->priv->column_drop_func)
5263           return NULL;
5264
5265         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5266           return NULL;
5267         else
5268           return (GtkTreeViewColumn *)0x1;
5269         break;
5270     }
5271
5272   return (GtkTreeViewColumn *)0x1;
5273 }
5274
5275 static gboolean
5276 gtk_tree_view_key_press (GtkWidget   *widget,
5277                          GdkEventKey *event)
5278 {
5279   GtkTreeView *tree_view = (GtkTreeView *) widget;
5280
5281   if (tree_view->priv->rubber_band_status)
5282     {
5283       if (event->keyval == GDK_Escape)
5284         gtk_tree_view_stop_rubber_band (tree_view);
5285
5286       return TRUE;
5287     }
5288
5289   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5290     {
5291       if (event->keyval == GDK_Escape)
5292         {
5293           tree_view->priv->cur_reorder = NULL;
5294           gtk_tree_view_button_release_drag_column (widget, NULL);
5295         }
5296       return TRUE;
5297     }
5298
5299   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5300     {
5301       GList *focus_column;
5302       gboolean rtl;
5303
5304       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5305
5306       for (focus_column = tree_view->priv->columns;
5307            focus_column;
5308            focus_column = focus_column->next)
5309         {
5310           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5311
5312           if (gtk_widget_has_focus (column->button))
5313             break;
5314         }
5315
5316       if (focus_column &&
5317           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5318           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5319            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5320         {
5321           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5322
5323           if (!column->resizable)
5324             {
5325               gtk_widget_error_bell (widget);
5326               return TRUE;
5327             }
5328
5329           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5330               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5331             {
5332               gint old_width = column->resized_width;
5333
5334               column->resized_width = MAX (column->resized_width,
5335                                            column->width);
5336               column->resized_width -= 2;
5337               if (column->resized_width < 0)
5338                 column->resized_width = 0;
5339
5340               if (column->min_width == -1)
5341                 column->resized_width = MAX (column->button->requisition.width,
5342                                              column->resized_width);
5343               else
5344                 column->resized_width = MAX (column->min_width,
5345                                              column->resized_width);
5346
5347               if (column->max_width != -1)
5348                 column->resized_width = MIN (column->resized_width,
5349                                              column->max_width);
5350
5351               column->use_resized_width = TRUE;
5352
5353               if (column->resized_width != old_width)
5354                 gtk_widget_queue_resize (widget);
5355               else
5356                 gtk_widget_error_bell (widget);
5357             }
5358           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5359                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5360             {
5361               gint old_width = column->resized_width;
5362
5363               column->resized_width = MAX (column->resized_width,
5364                                            column->width);
5365               column->resized_width += 2;
5366
5367               if (column->max_width != -1)
5368                 column->resized_width = MIN (column->resized_width,
5369                                              column->max_width);
5370
5371               column->use_resized_width = TRUE;
5372
5373               if (column->resized_width != old_width)
5374                 gtk_widget_queue_resize (widget);
5375               else
5376                 gtk_widget_error_bell (widget);
5377             }
5378
5379           return TRUE;
5380         }
5381
5382       if (focus_column &&
5383           (event->state & GDK_MOD1_MASK) &&
5384           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5385            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5386            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5387            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5388         {
5389           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5390
5391           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5392               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5393             {
5394               GtkTreeViewColumn *col;
5395               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5396               if (col != (GtkTreeViewColumn *)0x1)
5397                 gtk_tree_view_move_column_after (tree_view, column, col);
5398               else
5399                 gtk_widget_error_bell (widget);
5400             }
5401           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5402                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5403             {
5404               GtkTreeViewColumn *col;
5405               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5406               if (col != (GtkTreeViewColumn *)0x1)
5407                 gtk_tree_view_move_column_after (tree_view, column, col);
5408               else
5409                 gtk_widget_error_bell (widget);
5410             }
5411           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5412             {
5413               GtkTreeViewColumn *col;
5414               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5415               if (col != (GtkTreeViewColumn *)0x1)
5416                 gtk_tree_view_move_column_after (tree_view, column, col);
5417               else
5418                 gtk_widget_error_bell (widget);
5419             }
5420           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5421             {
5422               GtkTreeViewColumn *col;
5423               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5424               if (col != (GtkTreeViewColumn *)0x1)
5425                 gtk_tree_view_move_column_after (tree_view, column, col);
5426               else
5427                 gtk_widget_error_bell (widget);
5428             }
5429
5430           return TRUE;
5431         }
5432     }
5433
5434   /* Chain up to the parent class.  It handles the keybindings. */
5435   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5436     return TRUE;
5437
5438   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5439     {
5440       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5441       return FALSE;
5442     }
5443
5444   /* We pass the event to the search_entry.  If its text changes, then we start
5445    * the typeahead find capabilities. */
5446   if (gtk_widget_has_focus (GTK_WIDGET (tree_view))
5447       && tree_view->priv->enable_search
5448       && !tree_view->priv->search_custom_entry_set)
5449     {
5450       GdkEvent *new_event;
5451       char *old_text;
5452       const char *new_text;
5453       gboolean retval;
5454       GdkScreen *screen;
5455       gboolean text_modified;
5456       gulong popup_menu_id;
5457
5458       gtk_tree_view_ensure_interactive_directory (tree_view);
5459
5460       /* Make a copy of the current text */
5461       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5462       new_event = gdk_event_copy ((GdkEvent *) event);
5463       g_object_unref (((GdkEventKey *) new_event)->window);
5464       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5465       gtk_widget_realize (tree_view->priv->search_window);
5466
5467       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5468                                         "popup-menu", G_CALLBACK (gtk_true),
5469                                         NULL);
5470
5471       /* Move the entry off screen */
5472       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5473       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5474                        gdk_screen_get_width (screen) + 1,
5475                        gdk_screen_get_height (screen) + 1);
5476       gtk_widget_show (tree_view->priv->search_window);
5477
5478       /* Send the event to the window.  If the preedit_changed signal is emitted
5479        * during this event, we will set priv->imcontext_changed  */
5480       tree_view->priv->imcontext_changed = FALSE;
5481       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5482       gdk_event_free (new_event);
5483       gtk_widget_hide (tree_view->priv->search_window);
5484
5485       g_signal_handler_disconnect (tree_view->priv->search_entry,
5486                                    popup_menu_id);
5487
5488       /* We check to make sure that the entry tried to handle the text, and that
5489        * the text has changed.
5490        */
5491       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5492       text_modified = strcmp (old_text, new_text) != 0;
5493       g_free (old_text);
5494       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5495           (retval && text_modified))               /* ...or the text was modified */
5496         {
5497           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5498             {
5499               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5500               return TRUE;
5501             }
5502           else
5503             {
5504               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5505               return FALSE;
5506             }
5507         }
5508     }
5509
5510   return FALSE;
5511 }
5512
5513 static gboolean
5514 gtk_tree_view_key_release (GtkWidget   *widget,
5515                            GdkEventKey *event)
5516 {
5517   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5518
5519   if (tree_view->priv->rubber_band_status)
5520     return TRUE;
5521
5522   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5523 }
5524
5525 /* FIXME Is this function necessary? Can I get an enter_notify event
5526  * w/o either an expose event or a mouse motion event?
5527  */
5528 static gboolean
5529 gtk_tree_view_enter_notify (GtkWidget        *widget,
5530                             GdkEventCrossing *event)
5531 {
5532   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5533   GtkRBTree *tree;
5534   GtkRBNode *node;
5535   gint new_y;
5536
5537   /* Sanity check it */
5538   if (event->window != tree_view->priv->bin_window)
5539     return FALSE;
5540
5541   if (tree_view->priv->tree == NULL)
5542     return FALSE;
5543
5544   if (event->mode == GDK_CROSSING_GRAB ||
5545       event->mode == GDK_CROSSING_GTK_GRAB ||
5546       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5547       event->mode == GDK_CROSSING_STATE_CHANGED)
5548     return TRUE;
5549
5550   /* find the node internally */
5551   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5552   if (new_y < 0)
5553     new_y = 0;
5554   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5555
5556   tree_view->priv->event_last_x = event->x;
5557   tree_view->priv->event_last_y = event->y;
5558
5559   if ((tree_view->priv->button_pressed_node == NULL) ||
5560       (tree_view->priv->button_pressed_node == node))
5561     prelight_or_select (tree_view, tree, node, event->x, event->y);
5562
5563   return TRUE;
5564 }
5565
5566 static gboolean
5567 gtk_tree_view_leave_notify (GtkWidget        *widget,
5568                             GdkEventCrossing *event)
5569 {
5570   GtkTreeView *tree_view;
5571
5572   if (event->mode == GDK_CROSSING_GRAB)
5573     return TRUE;
5574
5575   tree_view = GTK_TREE_VIEW (widget);
5576
5577   if (tree_view->priv->prelight_node)
5578     _gtk_tree_view_queue_draw_node (tree_view,
5579                                    tree_view->priv->prelight_tree,
5580                                    tree_view->priv->prelight_node,
5581                                    NULL);
5582
5583   tree_view->priv->event_last_x = -10000;
5584   tree_view->priv->event_last_y = -10000;
5585
5586   prelight_or_select (tree_view,
5587                       NULL, NULL,
5588                       -1000, -1000); /* coords not possibly over an arrow */
5589
5590   return TRUE;
5591 }
5592
5593
5594 static gint
5595 gtk_tree_view_focus_out (GtkWidget     *widget,
5596                          GdkEventFocus *event)
5597 {
5598   GtkTreeView *tree_view;
5599
5600   tree_view = GTK_TREE_VIEW (widget);
5601
5602   gtk_widget_queue_draw (widget);
5603
5604   /* destroy interactive search dialog */
5605   if (tree_view->priv->search_window)
5606     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5607
5608   return FALSE;
5609 }
5610
5611
5612 /* Incremental Reflow
5613  */
5614
5615 static void
5616 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5617                                  GtkRBTree   *tree,
5618                                  GtkRBNode   *node)
5619 {
5620   gint y;
5621
5622   y = _gtk_rbtree_node_find_offset (tree, node)
5623     - tree_view->priv->vadjustment->value
5624     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5625
5626   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5627                               0, y,
5628                               GTK_WIDGET (tree_view)->allocation.width,
5629                               GTK_RBNODE_GET_HEIGHT (node));
5630 }
5631
5632 static gboolean
5633 node_is_visible (GtkTreeView *tree_view,
5634                  GtkRBTree   *tree,
5635                  GtkRBNode   *node)
5636 {
5637   int y;
5638   int height;
5639
5640   y = _gtk_rbtree_node_find_offset (tree, node);
5641   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5642
5643   if (y >= tree_view->priv->vadjustment->value &&
5644       y + height <= (tree_view->priv->vadjustment->value
5645                      + tree_view->priv->vadjustment->page_size))
5646     return TRUE;
5647
5648   return FALSE;
5649 }
5650
5651 /* Returns TRUE if it updated the size
5652  */
5653 static gboolean
5654 validate_row (GtkTreeView *tree_view,
5655               GtkRBTree   *tree,
5656               GtkRBNode   *node,
5657               GtkTreeIter *iter,
5658               GtkTreePath *path)
5659 {
5660   GtkTreeViewColumn *column;
5661   GList *list, *first_column, *last_column;
5662   gint height = 0;
5663   gint horizontal_separator;
5664   gint vertical_separator;
5665   gint focus_line_width;
5666   gint depth = gtk_tree_path_get_depth (path);
5667   gboolean retval = FALSE;
5668   gboolean is_separator = FALSE;
5669   gboolean draw_vgrid_lines, draw_hgrid_lines;
5670   gint focus_pad;
5671   gint grid_line_width;
5672   gboolean wide_separators;
5673   gint separator_height;
5674
5675   /* double check the row needs validating */
5676   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5677       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5678     return FALSE;
5679
5680   is_separator = row_is_separator (tree_view, iter, NULL);
5681
5682   gtk_widget_style_get (GTK_WIDGET (tree_view),
5683                         "focus-padding", &focus_pad,
5684                         "focus-line-width", &focus_line_width,
5685                         "horizontal-separator", &horizontal_separator,
5686                         "vertical-separator", &vertical_separator,
5687                         "grid-line-width", &grid_line_width,
5688                         "wide-separators",  &wide_separators,
5689                         "separator-height", &separator_height,
5690                         NULL);
5691
5692   draw_vgrid_lines =
5693     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5694     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5695   draw_hgrid_lines =
5696     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5697     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5698
5699   for (last_column = g_list_last (tree_view->priv->columns);
5700        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5701        last_column = last_column->prev)
5702     ;
5703
5704   for (first_column = g_list_first (tree_view->priv->columns);
5705        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5706        first_column = first_column->next)
5707     ;
5708
5709   for (list = tree_view->priv->columns; list; list = list->next)
5710     {
5711       gint tmp_width;
5712       gint tmp_height;
5713
5714       column = list->data;
5715
5716       if (! column->visible)
5717         continue;
5718
5719       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5720         continue;
5721
5722       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5723                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5724                                                node->children?TRUE:FALSE);
5725       gtk_tree_view_column_cell_get_size (column,
5726                                           NULL, NULL, NULL,
5727                                           &tmp_width, &tmp_height);
5728
5729       if (!is_separator)
5730         {
5731           tmp_height += vertical_separator;
5732           height = MAX (height, tmp_height);
5733           height = MAX (height, tree_view->priv->expander_size);
5734         }
5735       else
5736         {
5737           if (wide_separators)
5738             height = separator_height + 2 * focus_pad;
5739           else
5740             height = 2 + 2 * focus_pad;
5741         }
5742
5743       if (gtk_tree_view_is_expander_column (tree_view, column))
5744         {
5745           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5746
5747           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5748             tmp_width += depth * tree_view->priv->expander_size;
5749         }
5750       else
5751         tmp_width = tmp_width + horizontal_separator;
5752
5753       if (draw_vgrid_lines)
5754         {
5755           if (list->data == first_column || list->data == last_column)
5756             tmp_width += grid_line_width / 2.0;
5757           else
5758             tmp_width += grid_line_width;
5759         }
5760
5761       if (tmp_width > column->requested_width)
5762         {
5763           retval = TRUE;
5764           column->requested_width = tmp_width;
5765         }
5766     }
5767
5768   if (draw_hgrid_lines)
5769     height += grid_line_width;
5770
5771   if (height != GTK_RBNODE_GET_HEIGHT (node))
5772     {
5773       retval = TRUE;
5774       _gtk_rbtree_node_set_height (tree, node, height);
5775     }
5776   _gtk_rbtree_node_mark_valid (tree, node);
5777   tree_view->priv->post_validation_flag = TRUE;
5778
5779   return retval;
5780 }
5781
5782
5783 static void
5784 validate_visible_area (GtkTreeView *tree_view)
5785 {
5786   GtkTreePath *path = NULL;
5787   GtkTreePath *above_path = NULL;
5788   GtkTreeIter iter;
5789   GtkRBTree *tree = NULL;
5790   GtkRBNode *node = NULL;
5791   gboolean need_redraw = FALSE;
5792   gboolean size_changed = FALSE;
5793   gint total_height;
5794   gint area_above = 0;
5795   gint area_below = 0;
5796
5797   if (tree_view->priv->tree == NULL)
5798     return;
5799
5800   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5801       tree_view->priv->scroll_to_path == NULL)
5802     return;
5803
5804   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5805
5806   if (total_height == 0)
5807     return;
5808
5809   /* First, we check to see if we need to scroll anywhere
5810    */
5811   if (tree_view->priv->scroll_to_path)
5812     {
5813       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5814       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5815         {
5816           /* we are going to scroll, and will update dy */
5817           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5818           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5819               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5820             {
5821               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5822               if (validate_row (tree_view, tree, node, &iter, path))
5823                 size_changed = TRUE;
5824             }
5825
5826           if (tree_view->priv->scroll_to_use_align)
5827             {
5828               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5829               area_above = (total_height - height) *
5830                 tree_view->priv->scroll_to_row_align;
5831               area_below = total_height - area_above - height;
5832               area_above = MAX (area_above, 0);
5833               area_below = MAX (area_below, 0);
5834             }
5835           else
5836             {
5837               /* two cases:
5838                * 1) row not visible
5839                * 2) row visible
5840                */
5841               gint dy;
5842               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5843
5844               dy = _gtk_rbtree_node_find_offset (tree, node);
5845
5846               if (dy >= tree_view->priv->vadjustment->value &&
5847                   dy + height <= (tree_view->priv->vadjustment->value
5848                                   + tree_view->priv->vadjustment->page_size))
5849                 {
5850                   /* row visible: keep the row at the same position */
5851                   area_above = dy - tree_view->priv->vadjustment->value;
5852                   area_below = (tree_view->priv->vadjustment->value +
5853                                 tree_view->priv->vadjustment->page_size)
5854                                - dy - height;
5855                 }
5856               else
5857                 {
5858                   /* row not visible */
5859                   if (dy >= 0
5860                       && dy + height <= tree_view->priv->vadjustment->page_size)
5861                     {
5862                       /* row at the beginning -- fixed */
5863                       area_above = dy;
5864                       area_below = tree_view->priv->vadjustment->page_size
5865                                    - area_above - height;
5866                     }
5867                   else if (dy >= (tree_view->priv->vadjustment->upper -
5868                                   tree_view->priv->vadjustment->page_size))
5869                     {
5870                       /* row at the end -- fixed */
5871                       area_above = dy - (tree_view->priv->vadjustment->upper -
5872                                    tree_view->priv->vadjustment->page_size);
5873                       area_below = tree_view->priv->vadjustment->page_size -
5874                                    area_above - height;
5875
5876                       if (area_below < 0)
5877                         {
5878                           area_above = tree_view->priv->vadjustment->page_size - height;
5879                           area_below = 0;
5880                         }
5881                     }
5882                   else
5883                     {
5884                       /* row somewhere in the middle, bring it to the top
5885                        * of the view
5886                        */
5887                       area_above = 0;
5888                       area_below = total_height - height;
5889                     }
5890                 }
5891             }
5892         }
5893       else
5894         /* the scroll to isn't valid; ignore it.
5895          */
5896         {
5897           if (tree_view->priv->scroll_to_path && !path)
5898             {
5899               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5900               tree_view->priv->scroll_to_path = NULL;
5901             }
5902           if (path)
5903             gtk_tree_path_free (path);
5904           path = NULL;
5905         }
5906     }
5907
5908   /* We didn't have a scroll_to set, so we just handle things normally
5909    */
5910   if (path == NULL)
5911     {
5912       gint offset;
5913
5914       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5915                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5916                                         &tree, &node);
5917       if (node == NULL)
5918         {
5919           /* In this case, nothing has been validated */
5920           path = gtk_tree_path_new_first ();
5921           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5922         }
5923       else
5924         {
5925           path = _gtk_tree_view_find_path (tree_view, tree, node);
5926           total_height += offset;
5927         }
5928
5929       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5930
5931       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5932           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5933         {
5934           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5935           if (validate_row (tree_view, tree, node, &iter, path))
5936             size_changed = TRUE;
5937         }
5938       area_above = 0;
5939       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5940     }
5941
5942   above_path = gtk_tree_path_copy (path);
5943
5944   /* if we do not validate any row above the new top_row, we will make sure
5945    * that the row immediately above top_row has been validated. (if we do not
5946    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5947    * when invalidated that row's height will be zero. and this will mess up
5948    * scrolling).
5949    */
5950   if (area_above == 0)
5951     {
5952       GtkRBTree *tmptree;
5953       GtkRBNode *tmpnode;
5954
5955       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5956       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5957
5958       if (tmpnode)
5959         {
5960           GtkTreePath *tmppath;
5961           GtkTreeIter tmpiter;
5962
5963           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5964           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5965
5966           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5967               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5968             {
5969               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5970               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5971                 size_changed = TRUE;
5972             }
5973
5974           gtk_tree_path_free (tmppath);
5975         }
5976     }
5977
5978   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5979    * backwards is much slower then forward, as there is no iter_prev function.
5980    * We go forwards first in case we run out of tree.  Then we go backwards to
5981    * fill out the top.
5982    */
5983   while (node && area_below > 0)
5984     {
5985       if (node->children)
5986         {
5987           GtkTreeIter parent = iter;
5988           gboolean has_child;
5989
5990           tree = node->children;
5991           node = tree->root;
5992
5993           g_assert (node != tree->nil);
5994
5995           while (node->left != tree->nil)
5996             node = node->left;
5997           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5998                                                     &iter,
5999                                                     &parent);
6000           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
6001           gtk_tree_path_down (path);
6002         }
6003       else
6004         {
6005           gboolean done = FALSE;
6006           do
6007             {
6008               node = _gtk_rbtree_next (tree, node);
6009               if (node != NULL)
6010                 {
6011                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
6012                   done = TRUE;
6013                   gtk_tree_path_next (path);
6014
6015                   /* Sanity Check! */
6016                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
6017                 }
6018               else
6019                 {
6020                   GtkTreeIter parent_iter = iter;
6021                   gboolean has_parent;
6022
6023                   node = tree->parent_node;
6024                   tree = tree->parent_tree;
6025                   if (tree == NULL)
6026                     break;
6027                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
6028                                                            &iter,
6029                                                            &parent_iter);
6030                   gtk_tree_path_up (path);
6031
6032                   /* Sanity check */
6033                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
6034                 }
6035             }
6036           while (!done);
6037         }
6038
6039       if (!node)
6040         break;
6041
6042       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6043           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6044         {
6045           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6046           if (validate_row (tree_view, tree, node, &iter, path))
6047               size_changed = TRUE;
6048         }
6049
6050       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6051     }
6052   gtk_tree_path_free (path);
6053
6054   /* If we ran out of tree, and have extra area_below left, we need to add it
6055    * to area_above */
6056   if (area_below > 0)
6057     area_above += area_below;
6058
6059   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
6060
6061   /* We walk backwards */
6062   while (area_above > 0)
6063     {
6064       _gtk_rbtree_prev_full (tree, node, &tree, &node);
6065
6066       /* Always find the new path in the tree.  We cannot just assume
6067        * a gtk_tree_path_prev() is enough here, as there might be children
6068        * in between this node and the previous sibling node.  If this
6069        * appears to be a performance hotspot in profiles, we can look into
6070        * intrigate logic for keeping path, node and iter in sync like
6071        * we do for forward walks.  (Which will be hard because of the lacking
6072        * iter_prev).
6073        */
6074
6075       if (node == NULL)
6076         break;
6077
6078       gtk_tree_path_free (above_path);
6079       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6080
6081       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6082
6083       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6084           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6085         {
6086           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6087           if (validate_row (tree_view, tree, node, &iter, above_path))
6088             size_changed = TRUE;
6089         }
6090       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6091     }
6092
6093   /* if we scrolled to a path, we need to set the dy here,
6094    * and sync the top row accordingly
6095    */
6096   if (tree_view->priv->scroll_to_path)
6097     {
6098       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6099       gtk_tree_view_top_row_to_dy (tree_view);
6100
6101       need_redraw = TRUE;
6102     }
6103   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6104     {
6105       /* when we are not scrolling, we should never set dy to something
6106        * else than zero. we update top_row to be in sync with dy = 0.
6107        */
6108       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6109       gtk_tree_view_dy_to_top_row (tree_view);
6110     }
6111   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6112     {
6113       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6114       gtk_tree_view_dy_to_top_row (tree_view);
6115     }
6116   else
6117     gtk_tree_view_top_row_to_dy (tree_view);
6118
6119   /* update width/height and queue a resize */
6120   if (size_changed)
6121     {
6122       GtkRequisition requisition;
6123
6124       /* We temporarily guess a size, under the assumption that it will be the
6125        * same when we get our next size_allocate.  If we don't do this, we'll be
6126        * in an inconsistent state if we call top_row_to_dy. */
6127
6128       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6129       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6130       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6131       gtk_adjustment_changed (tree_view->priv->hadjustment);
6132       gtk_adjustment_changed (tree_view->priv->vadjustment);
6133       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6134     }
6135
6136   if (tree_view->priv->scroll_to_path)
6137     {
6138       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6139       tree_view->priv->scroll_to_path = NULL;
6140     }
6141
6142   if (above_path)
6143     gtk_tree_path_free (above_path);
6144
6145   if (tree_view->priv->scroll_to_column)
6146     {
6147       tree_view->priv->scroll_to_column = NULL;
6148     }
6149   if (need_redraw)
6150     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6151 }
6152
6153 static void
6154 initialize_fixed_height_mode (GtkTreeView *tree_view)
6155 {
6156   if (!tree_view->priv->tree)
6157     return;
6158
6159   if (tree_view->priv->fixed_height < 0)
6160     {
6161       GtkTreeIter iter;
6162       GtkTreePath *path;
6163
6164       GtkRBTree *tree = NULL;
6165       GtkRBNode *node = NULL;
6166
6167       tree = tree_view->priv->tree;
6168       node = tree->root;
6169
6170       path = _gtk_tree_view_find_path (tree_view, tree, node);
6171       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6172
6173       validate_row (tree_view, tree, node, &iter, path);
6174
6175       gtk_tree_path_free (path);
6176
6177       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6178     }
6179
6180    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6181                                  tree_view->priv->fixed_height, TRUE);
6182 }
6183
6184 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6185  * the left-most uninvalidated node.  We then try walking right, validating
6186  * nodes.  Once we find a valid node, we repeat the previous process of finding
6187  * the first invalid node.
6188  */
6189
6190 static gboolean
6191 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6192 {
6193   GtkRBTree *tree = NULL;
6194   GtkRBNode *node = NULL;
6195   gboolean validated_area = FALSE;
6196   gint retval = TRUE;
6197   GtkTreePath *path = NULL;
6198   GtkTreeIter iter;
6199   GTimer *timer;
6200   gint i = 0;
6201
6202   gint prev_height = -1;
6203   gboolean fixed_height = TRUE;
6204
6205   g_assert (tree_view);
6206
6207   if (tree_view->priv->tree == NULL)
6208       return FALSE;
6209
6210   if (tree_view->priv->fixed_height_mode)
6211     {
6212       if (tree_view->priv->fixed_height < 0)
6213         initialize_fixed_height_mode (tree_view);
6214
6215       return FALSE;
6216     }
6217
6218   timer = g_timer_new ();
6219   g_timer_start (timer);
6220
6221   do
6222     {
6223       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6224         {
6225           retval = FALSE;
6226           goto done;
6227         }
6228
6229       if (path != NULL)
6230         {
6231           node = _gtk_rbtree_next (tree, node);
6232           if (node != NULL)
6233             {
6234               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6235               gtk_tree_path_next (path);
6236             }
6237           else
6238             {
6239               gtk_tree_path_free (path);
6240               path = NULL;
6241             }
6242         }
6243
6244       if (path == NULL)
6245         {
6246           tree = tree_view->priv->tree;
6247           node = tree_view->priv->tree->root;
6248
6249           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6250
6251           do
6252             {
6253               if (node->left != tree->nil &&
6254                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6255                 {
6256                   node = node->left;
6257                 }
6258               else if (node->right != tree->nil &&
6259                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6260                 {
6261                   node = node->right;
6262                 }
6263               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6264                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6265                 {
6266                   break;
6267                 }
6268               else if (node->children != NULL)
6269                 {
6270                   tree = node->children;
6271                   node = tree->root;
6272                 }
6273               else
6274                 /* RBTree corruption!  All bad */
6275                 g_assert_not_reached ();
6276             }
6277           while (TRUE);
6278           path = _gtk_tree_view_find_path (tree_view, tree, node);
6279           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6280         }
6281
6282       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6283                        validated_area;
6284
6285       if (!tree_view->priv->fixed_height_check)
6286         {
6287           gint height;
6288
6289           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6290           if (prev_height < 0)
6291             prev_height = height;
6292           else if (prev_height != height)
6293             fixed_height = FALSE;
6294         }
6295
6296       i++;
6297     }
6298   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6299
6300   if (!tree_view->priv->fixed_height_check)
6301    {
6302      if (fixed_height)
6303        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6304
6305      tree_view->priv->fixed_height_check = 1;
6306    }
6307
6308  done:
6309   if (validated_area)
6310     {
6311       GtkRequisition requisition;
6312       /* We temporarily guess a size, under the assumption that it will be the
6313        * same when we get our next size_allocate.  If we don't do this, we'll be
6314        * in an inconsistent state when we call top_row_to_dy. */
6315
6316       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6317       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6318       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6319       gtk_adjustment_changed (tree_view->priv->hadjustment);
6320       gtk_adjustment_changed (tree_view->priv->vadjustment);
6321
6322       if (queue_resize)
6323         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6324     }
6325
6326   if (path) gtk_tree_path_free (path);
6327   g_timer_destroy (timer);
6328
6329   return retval;
6330 }
6331
6332 static gboolean
6333 validate_rows (GtkTreeView *tree_view)
6334 {
6335   gboolean retval;
6336
6337   retval = do_validate_rows (tree_view, TRUE);
6338
6339   if (! retval && tree_view->priv->validate_rows_timer)
6340     {
6341       g_source_remove (tree_view->priv->validate_rows_timer);
6342       tree_view->priv->validate_rows_timer = 0;
6343     }
6344
6345   return retval;
6346 }
6347
6348 static gboolean
6349 validate_rows_handler (GtkTreeView *tree_view)
6350 {
6351   gboolean retval;
6352
6353   retval = do_validate_rows (tree_view, TRUE);
6354   if (! retval && tree_view->priv->validate_rows_timer)
6355     {
6356       g_source_remove (tree_view->priv->validate_rows_timer);
6357       tree_view->priv->validate_rows_timer = 0;
6358     }
6359
6360   return retval;
6361 }
6362
6363 static gboolean
6364 do_presize_handler (GtkTreeView *tree_view)
6365 {
6366   if (tree_view->priv->mark_rows_col_dirty)
6367     {
6368       if (tree_view->priv->tree)
6369         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6370       tree_view->priv->mark_rows_col_dirty = FALSE;
6371     }
6372   validate_visible_area (tree_view);
6373   tree_view->priv->presize_handler_timer = 0;
6374
6375   if (tree_view->priv->fixed_height_mode)
6376     {
6377       GtkRequisition requisition;
6378
6379       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6380
6381       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6382       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6383       gtk_adjustment_changed (tree_view->priv->hadjustment);
6384       gtk_adjustment_changed (tree_view->priv->vadjustment);
6385       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6386     }
6387
6388   return FALSE;
6389 }
6390
6391 static gboolean
6392 presize_handler_callback (gpointer data)
6393 {
6394   do_presize_handler (GTK_TREE_VIEW (data));
6395
6396   return FALSE;
6397 }
6398
6399 static void
6400 install_presize_handler (GtkTreeView *tree_view)
6401 {
6402   if (! GTK_WIDGET_REALIZED (tree_view))
6403     return;
6404
6405   if (! tree_view->priv->presize_handler_timer)
6406     {
6407       tree_view->priv->presize_handler_timer =
6408         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6409     }
6410   if (! tree_view->priv->validate_rows_timer)
6411     {
6412       tree_view->priv->validate_rows_timer =
6413         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6414     }
6415 }
6416
6417 static gboolean
6418 scroll_sync_handler (GtkTreeView *tree_view)
6419 {
6420   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6421     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6422   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6423     gtk_tree_view_top_row_to_dy (tree_view);
6424   else
6425     gtk_tree_view_dy_to_top_row (tree_view);
6426
6427   tree_view->priv->scroll_sync_timer = 0;
6428
6429   return FALSE;
6430 }
6431
6432 static void
6433 install_scroll_sync_handler (GtkTreeView *tree_view)
6434 {
6435   if (! GTK_WIDGET_REALIZED (tree_view))
6436     return;
6437
6438   if (!tree_view->priv->scroll_sync_timer)
6439     {
6440       tree_view->priv->scroll_sync_timer =
6441         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6442     }
6443 }
6444
6445 static void
6446 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6447                            GtkTreePath *path,
6448                            gint         offset)
6449 {
6450   gtk_tree_row_reference_free (tree_view->priv->top_row);
6451
6452   if (!path)
6453     {
6454       tree_view->priv->top_row = NULL;
6455       tree_view->priv->top_row_dy = 0;
6456     }
6457   else
6458     {
6459       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6460       tree_view->priv->top_row_dy = offset;
6461     }
6462 }
6463
6464 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6465  * it's set to be NULL, and top_row_dy is 0;
6466  */
6467 static void
6468 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6469 {
6470   gint offset;
6471   GtkTreePath *path;
6472   GtkRBTree *tree;
6473   GtkRBNode *node;
6474
6475   if (tree_view->priv->tree == NULL)
6476     {
6477       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6478     }
6479   else
6480     {
6481       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6482                                         tree_view->priv->dy,
6483                                         &tree, &node);
6484
6485       if (tree == NULL)
6486         {
6487           gtk_tree_view_set_top_row (tree_view, NULL, 0);
6488         }
6489       else
6490         {
6491           path = _gtk_tree_view_find_path (tree_view, tree, node);
6492           gtk_tree_view_set_top_row (tree_view, path, offset);
6493           gtk_tree_path_free (path);
6494         }
6495     }
6496 }
6497
6498 static void
6499 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6500 {
6501   GtkTreePath *path;
6502   GtkRBTree *tree;
6503   GtkRBNode *node;
6504   int new_dy;
6505
6506   /* Avoid recursive calls */
6507   if (tree_view->priv->in_top_row_to_dy)
6508     return;
6509
6510   if (tree_view->priv->top_row)
6511     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6512   else
6513     path = NULL;
6514
6515   if (!path)
6516     tree = NULL;
6517   else
6518     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6519
6520   if (path)
6521     gtk_tree_path_free (path);
6522
6523   if (tree == NULL)
6524     {
6525       /* keep dy and set new toprow */
6526       gtk_tree_row_reference_free (tree_view->priv->top_row);
6527       tree_view->priv->top_row = NULL;
6528       tree_view->priv->top_row_dy = 0;
6529       /* DO NOT install the idle handler */
6530       gtk_tree_view_dy_to_top_row (tree_view);
6531       return;
6532     }
6533
6534   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6535       < tree_view->priv->top_row_dy)
6536     {
6537       /* new top row -- do NOT install the idle handler */
6538       gtk_tree_view_dy_to_top_row (tree_view);
6539       return;
6540     }
6541
6542   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6543   new_dy += tree_view->priv->top_row_dy;
6544
6545   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6546     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6547
6548   new_dy = MAX (0, new_dy);
6549
6550   tree_view->priv->in_top_row_to_dy = TRUE;
6551   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6552   tree_view->priv->in_top_row_to_dy = FALSE;
6553 }
6554
6555
6556 void
6557 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6558 {
6559   tree_view->priv->mark_rows_col_dirty = TRUE;
6560
6561   install_presize_handler (tree_view);
6562 }
6563
6564 /*
6565  * This function works synchronously (due to the while (validate_rows...)
6566  * loop).
6567  *
6568  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6569  * here. You now need to check that yourself.
6570  */
6571 void
6572 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6573                                 GtkTreeViewColumn *column)
6574 {
6575   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6576   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6577
6578   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6579
6580   do_presize_handler (tree_view);
6581   while (validate_rows (tree_view));
6582
6583   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6584 }
6585
6586 /* Drag-and-drop */
6587
6588 static void
6589 set_source_row (GdkDragContext *context,
6590                 GtkTreeModel   *model,
6591                 GtkTreePath    *source_row)
6592 {
6593   g_object_set_data_full (G_OBJECT (context),
6594                           I_("gtk-tree-view-source-row"),
6595                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6596                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6597 }
6598
6599 static GtkTreePath*
6600 get_source_row (GdkDragContext *context)
6601 {
6602   GtkTreeRowReference *ref =
6603     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6604
6605   if (ref)
6606     return gtk_tree_row_reference_get_path (ref);
6607   else
6608     return NULL;
6609 }
6610
6611 typedef struct
6612 {
6613   GtkTreeRowReference *dest_row;
6614   guint                path_down_mode   : 1;
6615   guint                empty_view_drop  : 1;
6616   guint                drop_append_mode : 1;
6617 }
6618 DestRow;
6619
6620 static void
6621 dest_row_free (gpointer data)
6622 {
6623   DestRow *dr = (DestRow *)data;
6624
6625   gtk_tree_row_reference_free (dr->dest_row);
6626   g_slice_free (DestRow, dr);
6627 }
6628
6629 static void
6630 set_dest_row (GdkDragContext *context,
6631               GtkTreeModel   *model,
6632               GtkTreePath    *dest_row,
6633               gboolean        path_down_mode,
6634               gboolean        empty_view_drop,
6635               gboolean        drop_append_mode)
6636 {
6637   DestRow *dr;
6638
6639   if (!dest_row)
6640     {
6641       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6642                               NULL, NULL);
6643       return;
6644     }
6645
6646   dr = g_slice_new (DestRow);
6647
6648   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6649   dr->path_down_mode = path_down_mode != FALSE;
6650   dr->empty_view_drop = empty_view_drop != FALSE;
6651   dr->drop_append_mode = drop_append_mode != FALSE;
6652
6653   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6654                           dr, (GDestroyNotify) dest_row_free);
6655 }
6656
6657 static GtkTreePath*
6658 get_dest_row (GdkDragContext *context,
6659               gboolean       *path_down_mode)
6660 {
6661   DestRow *dr =
6662     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6663
6664   if (dr)
6665     {
6666       GtkTreePath *path = NULL;
6667
6668       if (path_down_mode)
6669         *path_down_mode = dr->path_down_mode;
6670
6671       if (dr->dest_row)
6672         path = gtk_tree_row_reference_get_path (dr->dest_row);
6673       else if (dr->empty_view_drop)
6674         path = gtk_tree_path_new_from_indices (0, -1);
6675       else
6676         path = NULL;
6677
6678       if (path && dr->drop_append_mode)
6679         gtk_tree_path_next (path);
6680
6681       return path;
6682     }
6683   else
6684     return NULL;
6685 }
6686
6687 /* Get/set whether drag_motion requested the drag data and
6688  * drag_data_received should thus not actually insert the data,
6689  * since the data doesn't result from a drop.
6690  */
6691 static void
6692 set_status_pending (GdkDragContext *context,
6693                     GdkDragAction   suggested_action)
6694 {
6695   g_object_set_data (G_OBJECT (context),
6696                      I_("gtk-tree-view-status-pending"),
6697                      GINT_TO_POINTER (suggested_action));
6698 }
6699
6700 static GdkDragAction
6701 get_status_pending (GdkDragContext *context)
6702 {
6703   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6704                                              "gtk-tree-view-status-pending"));
6705 }
6706
6707 static TreeViewDragInfo*
6708 get_info (GtkTreeView *tree_view)
6709 {
6710   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6711 }
6712
6713 static void
6714 destroy_info (TreeViewDragInfo *di)
6715 {
6716   g_slice_free (TreeViewDragInfo, di);
6717 }
6718
6719 static TreeViewDragInfo*
6720 ensure_info (GtkTreeView *tree_view)
6721 {
6722   TreeViewDragInfo *di;
6723
6724   di = get_info (tree_view);
6725
6726   if (di == NULL)
6727     {
6728       di = g_slice_new0 (TreeViewDragInfo);
6729
6730       g_object_set_data_full (G_OBJECT (tree_view),
6731                               I_("gtk-tree-view-drag-info"),
6732                               di,
6733                               (GDestroyNotify) destroy_info);
6734     }
6735
6736   return di;
6737 }
6738
6739 static void
6740 remove_info (GtkTreeView *tree_view)
6741 {
6742   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6743 }
6744
6745 #if 0
6746 static gint
6747 drag_scan_timeout (gpointer data)
6748 {
6749   GtkTreeView *tree_view;
6750   gint x, y;
6751   GdkModifierType state;
6752   GtkTreePath *path = NULL;
6753   GtkTreeViewColumn *column = NULL;
6754   GdkRectangle visible_rect;
6755
6756   GDK_THREADS_ENTER ();
6757
6758   tree_view = GTK_TREE_VIEW (data);
6759
6760   gdk_window_get_pointer (tree_view->priv->bin_window,
6761                           &x, &y, &state);
6762
6763   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6764
6765   /* See if we are near the edge. */
6766   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6767       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6768       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6769       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6770     {
6771       gtk_tree_view_get_path_at_pos (tree_view,
6772                                      tree_view->priv->bin_window,
6773                                      x, y,
6774                                      &path,
6775                                      &column,
6776                                      NULL,
6777                                      NULL);
6778
6779       if (path != NULL)
6780         {
6781           gtk_tree_view_scroll_to_cell (tree_view,
6782                                         path,
6783                                         column,
6784                                         TRUE,
6785                                         0.5, 0.5);
6786
6787           gtk_tree_path_free (path);
6788         }
6789     }
6790
6791   GDK_THREADS_LEAVE ();
6792
6793   return TRUE;
6794 }
6795 #endif /* 0 */
6796
6797 static void
6798 add_scroll_timeout (GtkTreeView *tree_view)
6799 {
6800   if (tree_view->priv->scroll_timeout == 0)
6801     {
6802       tree_view->priv->scroll_timeout =
6803         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6804     }
6805 }
6806
6807 static void
6808 remove_scroll_timeout (GtkTreeView *tree_view)
6809 {
6810   if (tree_view->priv->scroll_timeout != 0)
6811     {
6812       g_source_remove (tree_view->priv->scroll_timeout);
6813       tree_view->priv->scroll_timeout = 0;
6814     }
6815 }
6816
6817 static gboolean
6818 check_model_dnd (GtkTreeModel *model,
6819                  GType         required_iface,
6820                  const gchar  *signal)
6821 {
6822   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6823     {
6824       g_warning ("You must override the default '%s' handler "
6825                  "on GtkTreeView when using models that don't support "
6826                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6827                  "is to connect to '%s' and call "
6828                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6829                  "the default handler from running. Look at the source code "
6830                  "for the default handler in gtktreeview.c to get an idea what "
6831                  "your handler should do. (gtktreeview.c is in the GTK source "
6832                  "code.) If you're using GTK from a language other than C, "
6833                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6834                  signal, g_type_name (required_iface), signal);
6835       return FALSE;
6836     }
6837   else
6838     return TRUE;
6839 }
6840
6841 static void
6842 remove_open_timeout (GtkTreeView *tree_view)
6843 {
6844   if (tree_view->priv->open_dest_timeout != 0)
6845     {
6846       g_source_remove (tree_view->priv->open_dest_timeout);
6847       tree_view->priv->open_dest_timeout = 0;
6848     }
6849 }
6850
6851
6852 static gint
6853 open_row_timeout (gpointer data)
6854 {
6855   GtkTreeView *tree_view = data;
6856   GtkTreePath *dest_path = NULL;
6857   GtkTreeViewDropPosition pos;
6858   gboolean result = FALSE;
6859
6860   gtk_tree_view_get_drag_dest_row (tree_view,
6861                                    &dest_path,
6862                                    &pos);
6863
6864   if (dest_path &&
6865       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6866        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6867     {
6868       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6869       tree_view->priv->open_dest_timeout = 0;
6870
6871       gtk_tree_path_free (dest_path);
6872     }
6873   else
6874     {
6875       if (dest_path)
6876         gtk_tree_path_free (dest_path);
6877
6878       result = TRUE;
6879     }
6880
6881   return result;
6882 }
6883
6884 static gboolean
6885 scroll_row_timeout (gpointer data)
6886 {
6887   GtkTreeView *tree_view = data;
6888
6889   gtk_tree_view_vertical_autoscroll (tree_view);
6890
6891   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6892     gtk_tree_view_update_rubber_band (tree_view);
6893
6894   return TRUE;
6895 }
6896
6897 /* Returns TRUE if event should not be propagated to parent widgets */
6898 static gboolean
6899 set_destination_row (GtkTreeView    *tree_view,
6900                      GdkDragContext *context,
6901                      /* coordinates relative to the widget */
6902                      gint            x,
6903                      gint            y,
6904                      GdkDragAction  *suggested_action,
6905                      GdkAtom        *target)
6906 {
6907   GtkTreePath *path = NULL;
6908   GtkTreeViewDropPosition pos;
6909   GtkTreeViewDropPosition old_pos;
6910   TreeViewDragInfo *di;
6911   GtkWidget *widget;
6912   GtkTreePath *old_dest_path = NULL;
6913   gboolean can_drop = FALSE;
6914
6915   *suggested_action = 0;
6916   *target = GDK_NONE;
6917
6918   widget = GTK_WIDGET (tree_view);
6919
6920   di = get_info (tree_view);
6921
6922   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6923     {
6924       /* someone unset us as a drag dest, note that if
6925        * we return FALSE drag_leave isn't called
6926        */
6927
6928       gtk_tree_view_set_drag_dest_row (tree_view,
6929                                        NULL,
6930                                        GTK_TREE_VIEW_DROP_BEFORE);
6931
6932       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6933       remove_open_timeout (GTK_TREE_VIEW (widget));
6934
6935       return FALSE; /* no longer a drop site */
6936     }
6937
6938   *target = gtk_drag_dest_find_target (widget, context,
6939                                        gtk_drag_dest_get_target_list (widget));
6940   if (*target == GDK_NONE)
6941     {
6942       return FALSE;
6943     }
6944
6945   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6946                                           x, y,
6947                                           &path,
6948                                           &pos))
6949     {
6950       gint n_children;
6951       GtkTreeModel *model;
6952
6953       remove_open_timeout (tree_view);
6954
6955       /* the row got dropped on empty space, let's setup a special case
6956        */
6957
6958       if (path)
6959         gtk_tree_path_free (path);
6960
6961       model = gtk_tree_view_get_model (tree_view);
6962
6963       n_children = gtk_tree_model_iter_n_children (model, NULL);
6964       if (n_children)
6965         {
6966           pos = GTK_TREE_VIEW_DROP_AFTER;
6967           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6968         }
6969       else
6970         {
6971           pos = GTK_TREE_VIEW_DROP_BEFORE;
6972           path = gtk_tree_path_new_from_indices (0, -1);
6973         }
6974
6975       can_drop = TRUE;
6976
6977       goto out;
6978     }
6979
6980   g_assert (path);
6981
6982   /* If we left the current row's "open" zone, unset the timeout for
6983    * opening the row
6984    */
6985   gtk_tree_view_get_drag_dest_row (tree_view,
6986                                    &old_dest_path,
6987                                    &old_pos);
6988
6989   if (old_dest_path &&
6990       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6991        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6992          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6993     remove_open_timeout (tree_view);
6994
6995   if (old_dest_path)
6996     gtk_tree_path_free (old_dest_path);
6997
6998   if (TRUE /* FIXME if the location droppable predicate */)
6999     {
7000       can_drop = TRUE;
7001     }
7002
7003 out:
7004   if (can_drop)
7005     {
7006       GtkWidget *source_widget;
7007
7008       *suggested_action = context->suggested_action;
7009       source_widget = gtk_drag_get_source_widget (context);
7010
7011       if (source_widget == widget)
7012         {
7013           /* Default to MOVE, unless the user has
7014            * pressed ctrl or shift to affect available actions
7015            */
7016           if ((context->actions & GDK_ACTION_MOVE) != 0)
7017             *suggested_action = GDK_ACTION_MOVE;
7018         }
7019
7020       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7021                                        path, pos);
7022     }
7023   else
7024     {
7025       /* can't drop here */
7026       remove_open_timeout (tree_view);
7027
7028       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7029                                        NULL,
7030                                        GTK_TREE_VIEW_DROP_BEFORE);
7031     }
7032
7033   if (path)
7034     gtk_tree_path_free (path);
7035
7036   return TRUE;
7037 }
7038
7039 static GtkTreePath*
7040 get_logical_dest_row (GtkTreeView *tree_view,
7041                       gboolean    *path_down_mode,
7042                       gboolean    *drop_append_mode)
7043 {
7044   /* adjust path to point to the row the drop goes in front of */
7045   GtkTreePath *path = NULL;
7046   GtkTreeViewDropPosition pos;
7047
7048   g_return_val_if_fail (path_down_mode != NULL, NULL);
7049   g_return_val_if_fail (drop_append_mode != NULL, NULL);
7050
7051   *path_down_mode = FALSE;
7052   *drop_append_mode = 0;
7053
7054   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7055
7056   if (path == NULL)
7057     return NULL;
7058
7059   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
7060     ; /* do nothing */
7061   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
7062            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
7063     *path_down_mode = TRUE;
7064   else
7065     {
7066       GtkTreeIter iter;
7067       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
7068
7069       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
7070
7071       if (!gtk_tree_model_get_iter (model, &iter, path) ||
7072           !gtk_tree_model_iter_next (model, &iter))
7073         *drop_append_mode = 1;
7074       else
7075         {
7076           *drop_append_mode = 0;
7077           gtk_tree_path_next (path);
7078         }
7079     }
7080
7081   return path;
7082 }
7083
7084 static gboolean
7085 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7086                                         GdkEventMotion   *event)
7087 {
7088   GtkWidget *widget = GTK_WIDGET (tree_view);
7089   GdkDragContext *context;
7090   TreeViewDragInfo *di;
7091   GtkTreePath *path = NULL;
7092   gint button;
7093   gint cell_x, cell_y;
7094   GtkTreeModel *model;
7095   gboolean retval = FALSE;
7096
7097   di = get_info (tree_view);
7098
7099   if (di == NULL || !di->source_set)
7100     goto out;
7101
7102   if (tree_view->priv->pressed_button < 0)
7103     goto out;
7104
7105   if (!gtk_drag_check_threshold (widget,
7106                                  tree_view->priv->press_start_x,
7107                                  tree_view->priv->press_start_y,
7108                                  event->x, event->y))
7109     goto out;
7110
7111   model = gtk_tree_view_get_model (tree_view);
7112
7113   if (model == NULL)
7114     goto out;
7115
7116   button = tree_view->priv->pressed_button;
7117   tree_view->priv->pressed_button = -1;
7118
7119   gtk_tree_view_get_path_at_pos (tree_view,
7120                                  tree_view->priv->press_start_x,
7121                                  tree_view->priv->press_start_y,
7122                                  &path,
7123                                  NULL,
7124                                  &cell_x,
7125                                  &cell_y);
7126
7127   if (path == NULL)
7128     goto out;
7129
7130   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7131       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7132                                            path))
7133     goto out;
7134
7135   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7136     goto out;
7137
7138   /* Now we can begin the drag */
7139
7140   retval = TRUE;
7141
7142   context = gtk_drag_begin (widget,
7143                             gtk_drag_source_get_target_list (widget),
7144                             di->source_actions,
7145                             button,
7146                             (GdkEvent*)event);
7147
7148   set_source_row (context, model, path);
7149
7150  out:
7151   if (path)
7152     gtk_tree_path_free (path);
7153
7154   return retval;
7155 }
7156
7157
7158 static void
7159 gtk_tree_view_drag_begin (GtkWidget      *widget,
7160                           GdkDragContext *context)
7161 {
7162   GtkTreeView *tree_view;
7163   GtkTreePath *path = NULL;
7164   gint cell_x, cell_y;
7165   GdkPixmap *row_pix;
7166   TreeViewDragInfo *di;
7167
7168   tree_view = GTK_TREE_VIEW (widget);
7169
7170   /* if the user uses a custom DND source impl, we don't set the icon here */
7171   di = get_info (tree_view);
7172
7173   if (di == NULL || !di->source_set)
7174     return;
7175
7176   gtk_tree_view_get_path_at_pos (tree_view,
7177                                  tree_view->priv->press_start_x,
7178                                  tree_view->priv->press_start_y,
7179                                  &path,
7180                                  NULL,
7181                                  &cell_x,
7182                                  &cell_y);
7183
7184   g_return_if_fail (path != NULL);
7185
7186   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7187                                                 path);
7188
7189   gtk_drag_set_icon_pixmap (context,
7190                             gdk_drawable_get_colormap (row_pix),
7191                             row_pix,
7192                             NULL,
7193                             /* the + 1 is for the black border in the icon */
7194                             tree_view->priv->press_start_x + 1,
7195                             cell_y + 1);
7196
7197   g_object_unref (row_pix);
7198   gtk_tree_path_free (path);
7199 }
7200
7201 static void
7202 gtk_tree_view_drag_end (GtkWidget      *widget,
7203                         GdkDragContext *context)
7204 {
7205   /* do nothing */
7206 }
7207
7208 /* Default signal implementations for the drag signals */
7209 static void
7210 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7211                              GdkDragContext   *context,
7212                              GtkSelectionData *selection_data,
7213                              guint             info,
7214                              guint             time)
7215 {
7216   GtkTreeView *tree_view;
7217   GtkTreeModel *model;
7218   TreeViewDragInfo *di;
7219   GtkTreePath *source_row;
7220
7221   tree_view = GTK_TREE_VIEW (widget);
7222
7223   model = gtk_tree_view_get_model (tree_view);
7224
7225   if (model == NULL)
7226     return;
7227
7228   di = get_info (GTK_TREE_VIEW (widget));
7229
7230   if (di == NULL)
7231     return;
7232
7233   source_row = get_source_row (context);
7234
7235   if (source_row == NULL)
7236     return;
7237
7238   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7239    * any model; for DragSource models there are some other targets
7240    * we also support.
7241    */
7242
7243   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7244       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7245                                           source_row,
7246                                           selection_data))
7247     goto done;
7248
7249   /* If drag_data_get does nothing, try providing row data. */
7250   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7251     {
7252       gtk_tree_set_row_drag_data (selection_data,
7253                                   model,
7254                                   source_row);
7255     }
7256
7257  done:
7258   gtk_tree_path_free (source_row);
7259 }
7260
7261
7262 static void
7263 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7264                                 GdkDragContext *context)
7265 {
7266   TreeViewDragInfo *di;
7267   GtkTreeModel *model;
7268   GtkTreeView *tree_view;
7269   GtkTreePath *source_row;
7270
7271   tree_view = GTK_TREE_VIEW (widget);
7272   model = gtk_tree_view_get_model (tree_view);
7273
7274   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7275     return;
7276
7277   di = get_info (tree_view);
7278
7279   if (di == NULL)
7280     return;
7281
7282   source_row = get_source_row (context);
7283
7284   if (source_row == NULL)
7285     return;
7286
7287   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7288                                          source_row);
7289
7290   gtk_tree_path_free (source_row);
7291
7292   set_source_row (context, NULL, NULL);
7293 }
7294
7295 static void
7296 gtk_tree_view_drag_leave (GtkWidget      *widget,
7297                           GdkDragContext *context,
7298                           guint             time)
7299 {
7300   /* unset any highlight row */
7301   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7302                                    NULL,
7303                                    GTK_TREE_VIEW_DROP_BEFORE);
7304
7305   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7306   remove_open_timeout (GTK_TREE_VIEW (widget));
7307 }
7308
7309
7310 static gboolean
7311 gtk_tree_view_drag_motion (GtkWidget        *widget,
7312                            GdkDragContext   *context,
7313                            /* coordinates relative to the widget */
7314                            gint              x,
7315                            gint              y,
7316                            guint             time)
7317 {
7318   gboolean empty;
7319   GtkTreePath *path = NULL;
7320   GtkTreeViewDropPosition pos;
7321   GtkTreeView *tree_view;
7322   GdkDragAction suggested_action = 0;
7323   GdkAtom target;
7324
7325   tree_view = GTK_TREE_VIEW (widget);
7326
7327   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7328     return FALSE;
7329
7330   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7331
7332   /* we only know this *after* set_desination_row */
7333   empty = tree_view->priv->empty_view_drop;
7334
7335   if (path == NULL && !empty)
7336     {
7337       /* Can't drop here. */
7338       gdk_drag_status (context, 0, time);
7339     }
7340   else
7341     {
7342       if (tree_view->priv->open_dest_timeout == 0 &&
7343           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7344            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7345         {
7346           tree_view->priv->open_dest_timeout =
7347             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7348         }
7349       else
7350         {
7351           add_scroll_timeout (tree_view);
7352         }
7353
7354       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7355         {
7356           /* Request data so we can use the source row when
7357            * determining whether to accept the drop
7358            */
7359           set_status_pending (context, suggested_action);
7360           gtk_drag_get_data (widget, context, target, time);
7361         }
7362       else
7363         {
7364           set_status_pending (context, 0);
7365           gdk_drag_status (context, suggested_action, time);
7366         }
7367     }
7368
7369   if (path)
7370     gtk_tree_path_free (path);
7371
7372   return TRUE;
7373 }
7374
7375
7376 static gboolean
7377 gtk_tree_view_drag_drop (GtkWidget        *widget,
7378                          GdkDragContext   *context,
7379                          /* coordinates relative to the widget */
7380                          gint              x,
7381                          gint              y,
7382                          guint             time)
7383 {
7384   GtkTreeView *tree_view;
7385   GtkTreePath *path;
7386   GdkDragAction suggested_action = 0;
7387   GdkAtom target = GDK_NONE;
7388   TreeViewDragInfo *di;
7389   GtkTreeModel *model;
7390   gboolean path_down_mode;
7391   gboolean drop_append_mode;
7392
7393   tree_view = GTK_TREE_VIEW (widget);
7394
7395   model = gtk_tree_view_get_model (tree_view);
7396
7397   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7398   remove_open_timeout (GTK_TREE_VIEW (widget));
7399
7400   di = get_info (tree_view);
7401
7402   if (di == NULL)
7403     return FALSE;
7404
7405   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7406     return FALSE;
7407
7408   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7409     return FALSE;
7410
7411   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7412
7413   if (target != GDK_NONE && path != NULL)
7414     {
7415       /* in case a motion had requested drag data, change things so we
7416        * treat drag data receives as a drop.
7417        */
7418       set_status_pending (context, 0);
7419       set_dest_row (context, model, path,
7420                     path_down_mode, tree_view->priv->empty_view_drop,
7421                     drop_append_mode);
7422     }
7423
7424   if (path)
7425     gtk_tree_path_free (path);
7426
7427   /* Unset this thing */
7428   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7429                                    NULL,
7430                                    GTK_TREE_VIEW_DROP_BEFORE);
7431
7432   if (target != GDK_NONE)
7433     {
7434       gtk_drag_get_data (widget, context, target, time);
7435       return TRUE;
7436     }
7437   else
7438     return FALSE;
7439 }
7440
7441 static void
7442 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7443                                   GdkDragContext   *context,
7444                                   /* coordinates relative to the widget */
7445                                   gint              x,
7446                                   gint              y,
7447                                   GtkSelectionData *selection_data,
7448                                   guint             info,
7449                                   guint             time)
7450 {
7451   GtkTreePath *path;
7452   TreeViewDragInfo *di;
7453   gboolean accepted = FALSE;
7454   GtkTreeModel *model;
7455   GtkTreeView *tree_view;
7456   GtkTreePath *dest_row;
7457   GdkDragAction suggested_action;
7458   gboolean path_down_mode;
7459   gboolean drop_append_mode;
7460
7461   tree_view = GTK_TREE_VIEW (widget);
7462
7463   model = gtk_tree_view_get_model (tree_view);
7464
7465   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7466     return;
7467
7468   di = get_info (tree_view);
7469
7470   if (di == NULL)
7471     return;
7472
7473   suggested_action = get_status_pending (context);
7474
7475   if (suggested_action)
7476     {
7477       /* We are getting this data due to a request in drag_motion,
7478        * rather than due to a request in drag_drop, so we are just
7479        * supposed to call drag_status, not actually paste in the
7480        * data.
7481        */
7482       path = get_logical_dest_row (tree_view, &path_down_mode,
7483                                    &drop_append_mode);
7484
7485       if (path == NULL)
7486         suggested_action = 0;
7487       else if (path_down_mode)
7488         gtk_tree_path_down (path);
7489
7490       if (suggested_action)
7491         {
7492           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7493                                                      path,
7494                                                      selection_data))
7495             {
7496               if (path_down_mode)
7497                 {
7498                   path_down_mode = FALSE;
7499                   gtk_tree_path_up (path);
7500
7501                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7502                                                              path,
7503                                                              selection_data))
7504                     suggested_action = 0;
7505                 }
7506               else
7507                 suggested_action = 0;
7508             }
7509         }
7510
7511       gdk_drag_status (context, suggested_action, time);
7512
7513       if (path)
7514         gtk_tree_path_free (path);
7515
7516       /* If you can't drop, remove user drop indicator until the next motion */
7517       if (suggested_action == 0)
7518         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7519                                          NULL,
7520                                          GTK_TREE_VIEW_DROP_BEFORE);
7521
7522       return;
7523     }
7524
7525   dest_row = get_dest_row (context, &path_down_mode);
7526
7527   if (dest_row == NULL)
7528     return;
7529
7530   if (selection_data->length >= 0)
7531     {
7532       if (path_down_mode)
7533         {
7534           gtk_tree_path_down (dest_row);
7535           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7536                                                      dest_row, selection_data))
7537             gtk_tree_path_up (dest_row);
7538         }
7539     }
7540
7541   if (selection_data->length >= 0)
7542     {
7543       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7544                                                  dest_row,
7545                                                  selection_data))
7546         accepted = TRUE;
7547     }
7548
7549   gtk_drag_finish (context,
7550                    accepted,
7551                    (context->action == GDK_ACTION_MOVE),
7552                    time);
7553
7554   if (gtk_tree_path_get_depth (dest_row) == 1
7555       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7556     {
7557       /* special special case drag to "0", scroll to first item */
7558       if (!tree_view->priv->scroll_to_path)
7559         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7560     }
7561
7562   gtk_tree_path_free (dest_row);
7563
7564   /* drop dest_row */
7565   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7566 }
7567
7568
7569
7570 /* GtkContainer Methods
7571  */
7572
7573
7574 static void
7575 gtk_tree_view_remove (GtkContainer *container,
7576                       GtkWidget    *widget)
7577 {
7578   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7579   GtkTreeViewChild *child = NULL;
7580   GList *tmp_list;
7581
7582   tmp_list = tree_view->priv->children;
7583   while (tmp_list)
7584     {
7585       child = tmp_list->data;
7586       if (child->widget == widget)
7587         {
7588           gtk_widget_unparent (widget);
7589
7590           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7591           g_list_free_1 (tmp_list);
7592           g_slice_free (GtkTreeViewChild, child);
7593           return;
7594         }
7595
7596       tmp_list = tmp_list->next;
7597     }
7598
7599   tmp_list = tree_view->priv->columns;
7600
7601   while (tmp_list)
7602     {
7603       GtkTreeViewColumn *column;
7604       column = tmp_list->data;
7605       if (column->button == widget)
7606         {
7607           gtk_widget_unparent (widget);
7608           return;
7609         }
7610       tmp_list = tmp_list->next;
7611     }
7612 }
7613
7614 static void
7615 gtk_tree_view_forall (GtkContainer *container,
7616                       gboolean      include_internals,
7617                       GtkCallback   callback,
7618                       gpointer      callback_data)
7619 {
7620   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7621   GtkTreeViewChild *child = NULL;
7622   GtkTreeViewColumn *column;
7623   GList *tmp_list;
7624
7625   tmp_list = tree_view->priv->children;
7626   while (tmp_list)
7627     {
7628       child = tmp_list->data;
7629       tmp_list = tmp_list->next;
7630
7631       (* callback) (child->widget, callback_data);
7632     }
7633   if (include_internals == FALSE)
7634     return;
7635
7636   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7637     {
7638       column = tmp_list->data;
7639
7640       if (column->button)
7641         (* callback) (column->button, callback_data);
7642     }
7643 }
7644
7645 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7646  * cells. If so we draw one big row-spanning focus rectangle.
7647  */
7648 static gboolean
7649 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7650 {
7651   GList *list;
7652
7653   for (list = tree_view->priv->columns; list; list = list->next)
7654     {
7655       if (!((GtkTreeViewColumn *)list->data)->visible)
7656         continue;
7657       if (_gtk_tree_view_column_count_special_cells (list->data))
7658         return TRUE;
7659     }
7660
7661   return FALSE;
7662 }
7663
7664 static void
7665 column_sizing_notify (GObject    *object,
7666                       GParamSpec *pspec,
7667                       gpointer    data)
7668 {
7669   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7670
7671   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7672     /* disable fixed height mode */
7673     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7674 }
7675
7676 /**
7677  * gtk_tree_view_set_fixed_height_mode:
7678  * @tree_view: a #GtkTreeView
7679  * @enable: %TRUE to enable fixed height mode
7680  *
7681  * Enables or disables the fixed height mode of @tree_view.
7682  * Fixed height mode speeds up #GtkTreeView by assuming that all
7683  * rows have the same height.
7684  * Only enable this option if all rows are the same height and all
7685  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7686  *
7687  * Since: 2.6
7688  **/
7689 void
7690 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7691                                      gboolean     enable)
7692 {
7693   GList *l;
7694
7695   enable = enable != FALSE;
7696
7697   if (enable == tree_view->priv->fixed_height_mode)
7698     return;
7699
7700   if (!enable)
7701     {
7702       tree_view->priv->fixed_height_mode = 0;
7703       tree_view->priv->fixed_height = -1;
7704
7705       /* force a revalidation */
7706       install_presize_handler (tree_view);
7707     }
7708   else
7709     {
7710       /* make sure all columns are of type FIXED */
7711       for (l = tree_view->priv->columns; l; l = l->next)
7712         {
7713           GtkTreeViewColumn *c = l->data;
7714
7715           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7716         }
7717
7718       /* yes, we really have to do this is in a separate loop */
7719       for (l = tree_view->priv->columns; l; l = l->next)
7720         g_signal_connect (l->data, "notify::sizing",
7721                           G_CALLBACK (column_sizing_notify), tree_view);
7722
7723       tree_view->priv->fixed_height_mode = 1;
7724       tree_view->priv->fixed_height = -1;
7725
7726       if (tree_view->priv->tree)
7727         initialize_fixed_height_mode (tree_view);
7728     }
7729
7730   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7731 }
7732
7733 /**
7734  * gtk_tree_view_get_fixed_height_mode:
7735  * @tree_view: a #GtkTreeView
7736  *
7737  * Returns whether fixed height mode is turned on for @tree_view.
7738  *
7739  * Return value: %TRUE if @tree_view is in fixed height mode
7740  *
7741  * Since: 2.6
7742  **/
7743 gboolean
7744 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7745 {
7746   return tree_view->priv->fixed_height_mode;
7747 }
7748
7749 /* Returns TRUE if the focus is within the headers, after the focus operation is
7750  * done
7751  */
7752 static gboolean
7753 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7754                             GtkDirectionType  dir,
7755                             gboolean          clamp_column_visible)
7756 {
7757   GtkWidget *focus_child;
7758
7759   GList *last_column, *first_column;
7760   GList *tmp_list;
7761   gboolean rtl;
7762
7763   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7764     return FALSE;
7765
7766   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7767
7768   first_column = tree_view->priv->columns;
7769   while (first_column)
7770     {
7771       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7772           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7773           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7774            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7775         break;
7776       first_column = first_column->next;
7777     }
7778
7779   /* No headers are visible, or are focusable.  We can't focus in or out.
7780    */
7781   if (first_column == NULL)
7782     return FALSE;
7783
7784   last_column = g_list_last (tree_view->priv->columns);
7785   while (last_column)
7786     {
7787       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7788           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7789           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7790            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7791         break;
7792       last_column = last_column->prev;
7793     }
7794
7795
7796   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7797
7798   switch (dir)
7799     {
7800     case GTK_DIR_TAB_BACKWARD:
7801     case GTK_DIR_TAB_FORWARD:
7802     case GTK_DIR_UP:
7803     case GTK_DIR_DOWN:
7804       if (focus_child == NULL)
7805         {
7806           if (tree_view->priv->focus_column != NULL &&
7807               gtk_widget_get_can_focus (tree_view->priv->focus_column->button))
7808             focus_child = tree_view->priv->focus_column->button;
7809           else
7810             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7811           gtk_widget_grab_focus (focus_child);
7812           break;
7813         }
7814       return FALSE;
7815
7816     case GTK_DIR_LEFT:
7817     case GTK_DIR_RIGHT:
7818       if (focus_child == NULL)
7819         {
7820           if (tree_view->priv->focus_column != NULL)
7821             focus_child = tree_view->priv->focus_column->button;
7822           else if (dir == GTK_DIR_LEFT)
7823             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7824           else
7825             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7826           gtk_widget_grab_focus (focus_child);
7827           break;
7828         }
7829
7830       if (gtk_widget_child_focus (focus_child, dir))
7831         {
7832           /* The focus moves inside the button. */
7833           /* This is probably a great example of bad UI */
7834           break;
7835         }
7836
7837       /* We need to move the focus among the row of buttons. */
7838       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7839         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7840           break;
7841
7842       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7843           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7844         {
7845           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7846           break;
7847         }
7848
7849       while (tmp_list)
7850         {
7851           GtkTreeViewColumn *column;
7852
7853           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7854             tmp_list = tmp_list->next;
7855           else
7856             tmp_list = tmp_list->prev;
7857
7858           if (tmp_list == NULL)
7859             {
7860               g_warning ("Internal button not found");
7861               break;
7862             }
7863           column = tmp_list->data;
7864           if (column->button &&
7865               column->visible &&
7866               gtk_widget_get_can_focus (column->button))
7867             {
7868               focus_child = column->button;
7869               gtk_widget_grab_focus (column->button);
7870               break;
7871             }
7872         }
7873       break;
7874     default:
7875       g_assert_not_reached ();
7876       break;
7877     }
7878
7879   /* if focus child is non-null, we assume it's been set to the current focus child
7880    */
7881   if (focus_child)
7882     {
7883       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7884         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7885           {
7886             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7887             break;
7888           }
7889
7890       if (clamp_column_visible)
7891         {
7892           gtk_tree_view_clamp_column_visible (tree_view,
7893                                               tree_view->priv->focus_column,
7894                                               FALSE);
7895         }
7896     }
7897
7898   return (focus_child != NULL);
7899 }
7900
7901 /* This function returns in 'path' the first focusable path, if the given path
7902  * is already focusable, it's the returned one.
7903  */
7904 static gboolean
7905 search_first_focusable_path (GtkTreeView  *tree_view,
7906                              GtkTreePath **path,
7907                              gboolean      search_forward,
7908                              GtkRBTree   **new_tree,
7909                              GtkRBNode   **new_node)
7910 {
7911   GtkRBTree *tree = NULL;
7912   GtkRBNode *node = NULL;
7913
7914   if (!path || !*path)
7915     return FALSE;
7916
7917   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7918
7919   if (!tree || !node)
7920     return FALSE;
7921
7922   while (node && row_is_separator (tree_view, NULL, *path))
7923     {
7924       if (search_forward)
7925         _gtk_rbtree_next_full (tree, node, &tree, &node);
7926       else
7927         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7928
7929       if (*path)
7930         gtk_tree_path_free (*path);
7931
7932       if (node)
7933         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7934       else
7935         *path = NULL;
7936     }
7937
7938   if (new_tree)
7939     *new_tree = tree;
7940
7941   if (new_node)
7942     *new_node = node;
7943
7944   return (*path != NULL);
7945 }
7946
7947 static gint
7948 gtk_tree_view_focus (GtkWidget        *widget,
7949                      GtkDirectionType  direction)
7950 {
7951   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7952   GtkContainer *container = GTK_CONTAINER (widget);
7953   GtkWidget *focus_child;
7954
7955   if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_can_focus (widget))
7956     return FALSE;
7957
7958   focus_child = container->focus_child;
7959
7960   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7961   /* Case 1.  Headers currently have focus. */
7962   if (focus_child)
7963     {
7964       switch (direction)
7965         {
7966         case GTK_DIR_LEFT:
7967         case GTK_DIR_RIGHT:
7968           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7969           return TRUE;
7970         case GTK_DIR_TAB_BACKWARD:
7971         case GTK_DIR_UP:
7972           return FALSE;
7973         case GTK_DIR_TAB_FORWARD:
7974         case GTK_DIR_DOWN:
7975           gtk_widget_grab_focus (widget);
7976           return TRUE;
7977         default:
7978           g_assert_not_reached ();
7979           return FALSE;
7980         }
7981     }
7982
7983   /* Case 2. We don't have focus at all. */
7984   if (!gtk_widget_has_focus (widget))
7985     {
7986       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7987         gtk_widget_grab_focus (widget);
7988       return TRUE;
7989     }
7990
7991   /* Case 3. We have focus already. */
7992   if (direction == GTK_DIR_TAB_BACKWARD)
7993     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7994   else if (direction == GTK_DIR_TAB_FORWARD)
7995     return FALSE;
7996
7997   /* Other directions caught by the keybindings */
7998   gtk_widget_grab_focus (widget);
7999   return TRUE;
8000 }
8001
8002 static void
8003 gtk_tree_view_grab_focus (GtkWidget *widget)
8004 {
8005   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
8006
8007   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
8008 }
8009
8010 static void
8011 gtk_tree_view_style_set (GtkWidget *widget,
8012                          GtkStyle *previous_style)
8013 {
8014   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
8015   GList *list;
8016   GtkTreeViewColumn *column;
8017
8018   if (GTK_WIDGET_REALIZED (widget))
8019     {
8020       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
8021       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
8022       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
8023
8024       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
8025       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
8026     }
8027
8028   gtk_widget_style_get (widget,
8029                         "expander-size", &tree_view->priv->expander_size,
8030                         NULL);
8031   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
8032
8033   for (list = tree_view->priv->columns; list; list = list->next)
8034     {
8035       column = list->data;
8036       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8037     }
8038
8039   tree_view->priv->fixed_height = -1;
8040   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
8041
8042   gtk_widget_queue_resize (widget);
8043 }
8044
8045
8046 static void
8047 gtk_tree_view_set_focus_child (GtkContainer *container,
8048                                GtkWidget    *child)
8049 {
8050   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
8051   GList *list;
8052
8053   for (list = tree_view->priv->columns; list; list = list->next)
8054     {
8055       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
8056         {
8057           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
8058           break;
8059         }
8060     }
8061
8062   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
8063 }
8064
8065 static void
8066 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
8067                                GtkAdjustment *hadj,
8068                                GtkAdjustment *vadj)
8069 {
8070   gboolean need_adjust = FALSE;
8071
8072   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8073
8074   if (hadj)
8075     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8076   else
8077     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8078   if (vadj)
8079     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8080   else
8081     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8082
8083   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8084     {
8085       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8086                                             gtk_tree_view_adjustment_changed,
8087                                             tree_view);
8088       g_object_unref (tree_view->priv->hadjustment);
8089     }
8090
8091   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8092     {
8093       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8094                                             gtk_tree_view_adjustment_changed,
8095                                             tree_view);
8096       g_object_unref (tree_view->priv->vadjustment);
8097     }
8098
8099   if (tree_view->priv->hadjustment != hadj)
8100     {
8101       tree_view->priv->hadjustment = hadj;
8102       g_object_ref_sink (tree_view->priv->hadjustment);
8103
8104       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8105                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8106                         tree_view);
8107       need_adjust = TRUE;
8108     }
8109
8110   if (tree_view->priv->vadjustment != vadj)
8111     {
8112       tree_view->priv->vadjustment = vadj;
8113       g_object_ref_sink (tree_view->priv->vadjustment);
8114
8115       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8116                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8117                         tree_view);
8118       need_adjust = TRUE;
8119     }
8120
8121   if (need_adjust)
8122     gtk_tree_view_adjustment_changed (NULL, tree_view);
8123 }
8124
8125
8126 static gboolean
8127 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8128                                 GtkMovementStep    step,
8129                                 gint               count)
8130 {
8131   GdkModifierType state;
8132
8133   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8134   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8135                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8136                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8137                         step == GTK_MOVEMENT_PAGES ||
8138                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8139
8140   if (tree_view->priv->tree == NULL)
8141     return FALSE;
8142   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
8143     return FALSE;
8144
8145   gtk_tree_view_stop_editing (tree_view, FALSE);
8146   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8147   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8148
8149   if (gtk_get_current_event_state (&state))
8150     {
8151       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8152         tree_view->priv->ctrl_pressed = TRUE;
8153       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8154         tree_view->priv->shift_pressed = TRUE;
8155     }
8156   /* else we assume not pressed */
8157
8158   switch (step)
8159     {
8160       /* currently we make no distinction.  When we go bi-di, we need to */
8161     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8162     case GTK_MOVEMENT_VISUAL_POSITIONS:
8163       gtk_tree_view_move_cursor_left_right (tree_view, count);
8164       break;
8165     case GTK_MOVEMENT_DISPLAY_LINES:
8166       gtk_tree_view_move_cursor_up_down (tree_view, count);
8167       break;
8168     case GTK_MOVEMENT_PAGES:
8169       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8170       break;
8171     case GTK_MOVEMENT_BUFFER_ENDS:
8172       gtk_tree_view_move_cursor_start_end (tree_view, count);
8173       break;
8174     default:
8175       g_assert_not_reached ();
8176     }
8177
8178   tree_view->priv->ctrl_pressed = FALSE;
8179   tree_view->priv->shift_pressed = FALSE;
8180
8181   return TRUE;
8182 }
8183
8184 static void
8185 gtk_tree_view_put (GtkTreeView *tree_view,
8186                    GtkWidget   *child_widget,
8187                    /* in bin_window coordinates */
8188                    gint         x,
8189                    gint         y,
8190                    gint         width,
8191                    gint         height)
8192 {
8193   GtkTreeViewChild *child;
8194
8195   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8196   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8197
8198   child = g_slice_new (GtkTreeViewChild);
8199
8200   child->widget = child_widget;
8201   child->x = x;
8202   child->y = y;
8203   child->width = width;
8204   child->height = height;
8205
8206   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8207
8208   if (GTK_WIDGET_REALIZED (tree_view))
8209     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8210
8211   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8212 }
8213
8214 void
8215 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8216                                   GtkWidget   *widget,
8217                                   /* in tree coordinates */
8218                                   gint         x,
8219                                   gint         y,
8220                                   gint         width,
8221                                   gint         height)
8222 {
8223   GtkTreeViewChild *child = NULL;
8224   GList *list;
8225   GdkRectangle allocation;
8226
8227   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8228   g_return_if_fail (GTK_IS_WIDGET (widget));
8229
8230   for (list = tree_view->priv->children; list; list = list->next)
8231     {
8232       if (((GtkTreeViewChild *)list->data)->widget == widget)
8233         {
8234           child = list->data;
8235           break;
8236         }
8237     }
8238   if (child == NULL)
8239     return;
8240
8241   allocation.x = child->x = x;
8242   allocation.y = child->y = y;
8243   allocation.width = child->width = width;
8244   allocation.height = child->height = height;
8245
8246   if (GTK_WIDGET_REALIZED (widget))
8247     gtk_widget_size_allocate (widget, &allocation);
8248 }
8249
8250
8251 /* TreeModel Callbacks
8252  */
8253
8254 static void
8255 gtk_tree_view_row_changed (GtkTreeModel *model,
8256                            GtkTreePath  *path,
8257                            GtkTreeIter  *iter,
8258                            gpointer      data)
8259 {
8260   GtkTreeView *tree_view = (GtkTreeView *)data;
8261   GtkRBTree *tree;
8262   GtkRBNode *node;
8263   gboolean free_path = FALSE;
8264   GList *list;
8265   GtkTreePath *cursor_path;
8266
8267   g_return_if_fail (path != NULL || iter != NULL);
8268
8269   if (tree_view->priv->cursor != NULL)
8270     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8271   else
8272     cursor_path = NULL;
8273
8274   if (tree_view->priv->edited_column &&
8275       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8276     gtk_tree_view_stop_editing (tree_view, TRUE);
8277
8278   if (cursor_path != NULL)
8279     gtk_tree_path_free (cursor_path);
8280
8281   if (path == NULL)
8282     {
8283       path = gtk_tree_model_get_path (model, iter);
8284       free_path = TRUE;
8285     }
8286   else if (iter == NULL)
8287     gtk_tree_model_get_iter (model, iter, path);
8288
8289   if (_gtk_tree_view_find_node (tree_view,
8290                                 path,
8291                                 &tree,
8292                                 &node))
8293     /* We aren't actually showing the node */
8294     goto done;
8295
8296   if (tree == NULL)
8297     goto done;
8298
8299   if (tree_view->priv->fixed_height_mode
8300       && tree_view->priv->fixed_height >= 0)
8301     {
8302       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8303       if (GTK_WIDGET_REALIZED (tree_view))
8304         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8305     }
8306   else
8307     {
8308       _gtk_rbtree_node_mark_invalid (tree, node);
8309       for (list = tree_view->priv->columns; list; list = list->next)
8310         {
8311           GtkTreeViewColumn *column;
8312
8313           column = list->data;
8314           if (! column->visible)
8315             continue;
8316
8317           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8318             {
8319               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8320             }
8321         }
8322     }
8323
8324  done:
8325   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8326     install_presize_handler (tree_view);
8327   if (free_path)
8328     gtk_tree_path_free (path);
8329 }
8330
8331 static void
8332 gtk_tree_view_row_inserted (GtkTreeModel *model,
8333                             GtkTreePath  *path,
8334                             GtkTreeIter  *iter,
8335                             gpointer      data)
8336 {
8337   GtkTreeView *tree_view = (GtkTreeView *) data;
8338   gint *indices;
8339   GtkRBTree *tmptree, *tree;
8340   GtkRBNode *tmpnode = NULL;
8341   gint depth;
8342   gint i = 0;
8343   gint height;
8344   gboolean free_path = FALSE;
8345   gboolean node_visible = TRUE;
8346
8347   g_return_if_fail (path != NULL || iter != NULL);
8348
8349   if (tree_view->priv->fixed_height_mode
8350       && tree_view->priv->fixed_height >= 0)
8351     height = tree_view->priv->fixed_height;
8352   else
8353     height = 0;
8354
8355   if (path == NULL)
8356     {
8357       path = gtk_tree_model_get_path (model, iter);
8358       free_path = TRUE;
8359     }
8360   else if (iter == NULL)
8361     gtk_tree_model_get_iter (model, iter, path);
8362
8363   if (tree_view->priv->tree == NULL)
8364     tree_view->priv->tree = _gtk_rbtree_new ();
8365
8366   tmptree = tree = tree_view->priv->tree;
8367
8368   /* Update all row-references */
8369   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8370   depth = gtk_tree_path_get_depth (path);
8371   indices = gtk_tree_path_get_indices (path);
8372
8373   /* First, find the parent tree */
8374   while (i < depth - 1)
8375     {
8376       if (tmptree == NULL)
8377         {
8378           /* We aren't showing the node */
8379           node_visible = FALSE;
8380           goto done;
8381         }
8382
8383       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8384       if (tmpnode == NULL)
8385         {
8386           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8387                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8388                      "before the parent was inserted.");
8389           goto done;
8390         }
8391       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8392         {
8393           /* FIXME enforce correct behavior on model, probably */
8394           /* In theory, the model should have emitted has_child_toggled here.  We
8395            * try to catch it anyway, just to be safe, in case the model hasn't.
8396            */
8397           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8398                                                            tree,
8399                                                            tmpnode);
8400           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8401           gtk_tree_path_free (tmppath);
8402           goto done;
8403         }
8404
8405       tmptree = tmpnode->children;
8406       tree = tmptree;
8407       i++;
8408     }
8409
8410   if (tree == NULL)
8411     {
8412       node_visible = FALSE;
8413       goto done;
8414     }
8415
8416   /* ref the node */
8417   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8418   if (indices[depth - 1] == 0)
8419     {
8420       tmpnode = _gtk_rbtree_find_count (tree, 1);
8421       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8422     }
8423   else
8424     {
8425       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8426       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8427     }
8428
8429  done:
8430   if (height > 0)
8431     {
8432       if (tree)
8433         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8434
8435       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8436         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8437       else
8438         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8439     }
8440   else
8441     install_presize_handler (tree_view);
8442   if (free_path)
8443     gtk_tree_path_free (path);
8444 }
8445
8446 static void
8447 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8448                                      GtkTreePath  *path,
8449                                      GtkTreeIter  *iter,
8450                                      gpointer      data)
8451 {
8452   GtkTreeView *tree_view = (GtkTreeView *)data;
8453   GtkTreeIter real_iter;
8454   gboolean has_child;
8455   GtkRBTree *tree;
8456   GtkRBNode *node;
8457   gboolean free_path = FALSE;
8458
8459   g_return_if_fail (path != NULL || iter != NULL);
8460
8461   if (iter)
8462     real_iter = *iter;
8463
8464   if (path == NULL)
8465     {
8466       path = gtk_tree_model_get_path (model, iter);
8467       free_path = TRUE;
8468     }
8469   else if (iter == NULL)
8470     gtk_tree_model_get_iter (model, &real_iter, path);
8471
8472   if (_gtk_tree_view_find_node (tree_view,
8473                                 path,
8474                                 &tree,
8475                                 &node))
8476     /* We aren't actually showing the node */
8477     goto done;
8478
8479   if (tree == NULL)
8480     goto done;
8481
8482   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8483   /* Sanity check.
8484    */
8485   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8486     goto done;
8487
8488   if (has_child)
8489     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8490   else
8491     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8492
8493   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8494     {
8495       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8496       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8497         {
8498           GList *list;
8499
8500           for (list = tree_view->priv->columns; list; list = list->next)
8501             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8502               {
8503                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8504                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8505                 break;
8506               }
8507         }
8508       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8509     }
8510   else
8511     {
8512       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8513     }
8514
8515  done:
8516   if (free_path)
8517     gtk_tree_path_free (path);
8518 }
8519
8520 static void
8521 count_children_helper (GtkRBTree *tree,
8522                        GtkRBNode *node,
8523                        gpointer   data)
8524 {
8525   if (node->children)
8526     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8527   (*((gint *)data))++;
8528 }
8529
8530 static void
8531 check_selection_helper (GtkRBTree *tree,
8532                         GtkRBNode *node,
8533                         gpointer   data)
8534 {
8535   gint *value = (gint *)data;
8536
8537   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8538
8539   if (node->children && !*value)
8540     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8541 }
8542
8543 static void
8544 gtk_tree_view_row_deleted (GtkTreeModel *model,
8545                            GtkTreePath  *path,
8546                            gpointer      data)
8547 {
8548   GtkTreeView *tree_view = (GtkTreeView *)data;
8549   GtkRBTree *tree;
8550   GtkRBNode *node;
8551   GList *list;
8552   gint selection_changed = FALSE;
8553
8554   g_return_if_fail (path != NULL);
8555
8556   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8557
8558   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8559     return;
8560
8561   if (tree == NULL)
8562     return;
8563
8564   /* check if the selection has been changed */
8565   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8566                         check_selection_helper, &selection_changed);
8567
8568   for (list = tree_view->priv->columns; list; list = list->next)
8569     if (((GtkTreeViewColumn *)list->data)->visible &&
8570         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8571       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8572
8573   /* Ensure we don't have a dangling pointer to a dead node */
8574   ensure_unprelighted (tree_view);
8575
8576   /* Cancel editting if we've started */
8577   gtk_tree_view_stop_editing (tree_view, TRUE);
8578
8579   /* If we have a node expanded/collapsed timeout, remove it */
8580   remove_expand_collapse_timeout (tree_view);
8581
8582   if (tree_view->priv->destroy_count_func)
8583     {
8584       gint child_count = 0;
8585       if (node->children)
8586         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8587       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8588     }
8589
8590   if (tree->root->count == 1)
8591     {
8592       if (tree_view->priv->tree == tree)
8593         tree_view->priv->tree = NULL;
8594
8595       _gtk_rbtree_remove (tree);
8596     }
8597   else
8598     {
8599       _gtk_rbtree_remove_node (tree, node);
8600     }
8601
8602   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8603     {
8604       gtk_tree_row_reference_free (tree_view->priv->top_row);
8605       tree_view->priv->top_row = NULL;
8606     }
8607
8608   install_scroll_sync_handler (tree_view);
8609
8610   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8611
8612   if (selection_changed)
8613     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8614 }
8615
8616 static void
8617 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8618                               GtkTreePath  *parent,
8619                               GtkTreeIter  *iter,
8620                               gint         *new_order,
8621                               gpointer      data)
8622 {
8623   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8624   GtkRBTree *tree;
8625   GtkRBNode *node;
8626   gint len;
8627
8628   len = gtk_tree_model_iter_n_children (model, iter);
8629
8630   if (len < 2)
8631     return;
8632
8633   gtk_tree_row_reference_reordered (G_OBJECT (data),
8634                                     parent,
8635                                     iter,
8636                                     new_order);
8637
8638   if (_gtk_tree_view_find_node (tree_view,
8639                                 parent,
8640                                 &tree,
8641                                 &node))
8642     return;
8643
8644   /* We need to special case the parent path */
8645   if (tree == NULL)
8646     tree = tree_view->priv->tree;
8647   else
8648     tree = node->children;
8649
8650   if (tree == NULL)
8651     return;
8652
8653   if (tree_view->priv->edited_column)
8654     gtk_tree_view_stop_editing (tree_view, TRUE);
8655
8656   /* we need to be unprelighted */
8657   ensure_unprelighted (tree_view);
8658
8659   /* clear the timeout */
8660   cancel_arrow_animation (tree_view);
8661
8662   _gtk_rbtree_reorder (tree, new_order, len);
8663
8664   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8665
8666   gtk_tree_view_dy_to_top_row (tree_view);
8667 }
8668
8669
8670 /* Internal tree functions
8671  */
8672
8673
8674 static void
8675 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8676                                      GtkRBTree         *tree,
8677                                      GtkTreeViewColumn *column,
8678                                      gint              *x1,
8679                                      gint              *x2)
8680 {
8681   GtkTreeViewColumn *tmp_column = NULL;
8682   gint total_width;
8683   GList *list;
8684   gboolean rtl;
8685
8686   if (x1)
8687     *x1 = 0;
8688
8689   if (x2)
8690     *x2 = 0;
8691
8692   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8693
8694   total_width = 0;
8695   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8696        list;
8697        list = (rtl ? list->prev : list->next))
8698     {
8699       tmp_column = list->data;
8700
8701       if (tmp_column == column)
8702         break;
8703
8704       if (tmp_column->visible)
8705         total_width += tmp_column->width;
8706     }
8707
8708   if (tmp_column != column)
8709     {
8710       g_warning (G_STRLOC": passed-in column isn't in the tree");
8711       return;
8712     }
8713
8714   if (x1)
8715     *x1 = total_width;
8716
8717   if (x2)
8718     {
8719       if (column->visible)
8720         *x2 = total_width + column->width;
8721       else
8722         *x2 = total_width; /* width of 0 */
8723     }
8724 }
8725 static void
8726 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8727                                 GtkRBTree   *tree,
8728                                 gint        *x1,
8729                                 gint        *x2)
8730 {
8731   gint x_offset = 0;
8732   GList *list;
8733   GtkTreeViewColumn *tmp_column = NULL;
8734   gint total_width;
8735   gboolean indent_expanders;
8736   gboolean rtl;
8737
8738   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8739
8740   total_width = 0;
8741   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8742        list;
8743        list = (rtl ? list->prev : list->next))
8744     {
8745       tmp_column = list->data;
8746
8747       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8748         {
8749           if (rtl)
8750             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8751           else
8752             x_offset = total_width;
8753           break;
8754         }
8755
8756       if (tmp_column->visible)
8757         total_width += tmp_column->width;
8758     }
8759
8760   gtk_widget_style_get (GTK_WIDGET (tree_view),
8761                         "indent-expanders", &indent_expanders,
8762                         NULL);
8763
8764   if (indent_expanders)
8765     {
8766       if (rtl)
8767         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8768       else
8769         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8770     }
8771
8772   *x1 = x_offset;
8773
8774   if (tmp_column && tmp_column->visible)
8775     /* +1 because x2 isn't included in the range. */
8776     *x2 = *x1 + tree_view->priv->expander_size + 1;
8777   else
8778     *x2 = *x1;
8779 }
8780
8781 static void
8782 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8783                           GtkRBTree   *tree,
8784                           GtkTreeIter *iter,
8785                           gint         depth,
8786                           gboolean     recurse)
8787 {
8788   GtkRBNode *temp = NULL;
8789   GtkTreePath *path = NULL;
8790   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8791
8792   do
8793     {
8794       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8795       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8796
8797       if (tree_view->priv->fixed_height > 0)
8798         {
8799           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8800             {
8801               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8802               _gtk_rbtree_node_mark_valid (tree, temp);
8803             }
8804         }
8805
8806       if (is_list)
8807         continue;
8808
8809       if (recurse)
8810         {
8811           GtkTreeIter child;
8812
8813           if (!path)
8814             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8815           else
8816             gtk_tree_path_next (path);
8817
8818           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8819             {
8820               gboolean expand;
8821
8822               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8823
8824               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8825                   && !expand)
8826                 {
8827                   temp->children = _gtk_rbtree_new ();
8828                   temp->children->parent_tree = tree;
8829                   temp->children->parent_node = temp;
8830                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8831                 }
8832             }
8833         }
8834
8835       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8836         {
8837           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8838             temp->flags ^= GTK_RBNODE_IS_PARENT;
8839         }
8840     }
8841   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8842
8843   if (path)
8844     gtk_tree_path_free (path);
8845 }
8846
8847 /* Make sure the node is visible vertically */
8848 static void
8849 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8850                                   GtkRBTree   *tree,
8851                                   GtkRBNode   *node)
8852 {
8853   gint node_dy, height;
8854   GtkTreePath *path = NULL;
8855
8856   if (!GTK_WIDGET_REALIZED (tree_view))
8857     return;
8858
8859   /* just return if the node is visible, avoiding a costly expose */
8860   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8861   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8862   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8863       && node_dy >= tree_view->priv->vadjustment->value
8864       && node_dy + height <= (tree_view->priv->vadjustment->value
8865                               + tree_view->priv->vadjustment->page_size))
8866     return;
8867
8868   path = _gtk_tree_view_find_path (tree_view, tree, node);
8869   if (path)
8870     {
8871       /* We process updates because we want to clear old selected items when we scroll.
8872        * if this is removed, we get a "selection streak" at the bottom. */
8873       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8874       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8875       gtk_tree_path_free (path);
8876     }
8877 }
8878
8879 static void
8880 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8881                                     GtkTreeViewColumn *column,
8882                                     gboolean           focus_to_cell)
8883 {
8884   gint x, width;
8885
8886   if (column == NULL)
8887     return;
8888
8889   x = column->button->allocation.x;
8890   width = column->button->allocation.width;
8891
8892   if (width > tree_view->priv->hadjustment->page_size)
8893     {
8894       /* The column is larger than the horizontal page size.  If the
8895        * column has cells which can be focussed individually, then we make
8896        * sure the cell which gets focus is fully visible (if even the
8897        * focus cell is bigger than the page size, we make sure the
8898        * left-hand side of the cell is visible).
8899        *
8900        * If the column does not have those so-called special cells, we
8901        * make sure the left-hand side of the column is visible.
8902        */
8903
8904       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8905         {
8906           GtkTreePath *cursor_path;
8907           GdkRectangle background_area, cell_area, focus_area;
8908
8909           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8910
8911           gtk_tree_view_get_cell_area (tree_view,
8912                                        cursor_path, column, &cell_area);
8913           gtk_tree_view_get_background_area (tree_view,
8914                                              cursor_path, column,
8915                                              &background_area);
8916
8917           gtk_tree_path_free (cursor_path);
8918
8919           _gtk_tree_view_column_get_focus_area (column,
8920                                                 &background_area,
8921                                                 &cell_area,
8922                                                 &focus_area);
8923
8924           x = focus_area.x;
8925           width = focus_area.width;
8926
8927           if (width < tree_view->priv->hadjustment->page_size)
8928             {
8929               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8930                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8931                                           x + width - tree_view->priv->hadjustment->page_size);
8932               else if (tree_view->priv->hadjustment->value > x)
8933                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8934             }
8935         }
8936
8937       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8938                                 CLAMP (x,
8939                                        tree_view->priv->hadjustment->lower,
8940                                        tree_view->priv->hadjustment->upper
8941                                        - tree_view->priv->hadjustment->page_size));
8942     }
8943   else
8944     {
8945       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8946           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8947                                     x + width - tree_view->priv->hadjustment->page_size);
8948       else if (tree_view->priv->hadjustment->value > x)
8949         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8950   }
8951 }
8952
8953 /* This function could be more efficient.  I'll optimize it if profiling seems
8954  * to imply that it is important */
8955 GtkTreePath *
8956 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8957                           GtkRBTree   *tree,
8958                           GtkRBNode   *node)
8959 {
8960   GtkTreePath *path;
8961   GtkRBTree *tmp_tree;
8962   GtkRBNode *tmp_node, *last;
8963   gint count;
8964
8965   path = gtk_tree_path_new ();
8966
8967   g_return_val_if_fail (node != NULL, path);
8968   g_return_val_if_fail (node != tree->nil, path);
8969
8970   count = 1 + node->left->count;
8971
8972   last = node;
8973   tmp_node = node->parent;
8974   tmp_tree = tree;
8975   while (tmp_tree)
8976     {
8977       while (tmp_node != tmp_tree->nil)
8978         {
8979           if (tmp_node->right == last)
8980             count += 1 + tmp_node->left->count;
8981           last = tmp_node;
8982           tmp_node = tmp_node->parent;
8983         }
8984       gtk_tree_path_prepend_index (path, count - 1);
8985       last = tmp_tree->parent_node;
8986       tmp_tree = tmp_tree->parent_tree;
8987       if (last)
8988         {
8989           count = 1 + last->left->count;
8990           tmp_node = last->parent;
8991         }
8992     }
8993   return path;
8994 }
8995
8996 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8997  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8998  * both set to NULL.
8999  */
9000 gboolean
9001 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
9002                           GtkTreePath  *path,
9003                           GtkRBTree   **tree,
9004                           GtkRBNode   **node)
9005 {
9006   GtkRBNode *tmpnode = NULL;
9007   GtkRBTree *tmptree = tree_view->priv->tree;
9008   gint *indices = gtk_tree_path_get_indices (path);
9009   gint depth = gtk_tree_path_get_depth (path);
9010   gint i = 0;
9011
9012   *node = NULL;
9013   *tree = NULL;
9014
9015   if (depth == 0 || tmptree == NULL)
9016     return FALSE;
9017   do
9018     {
9019       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9020       ++i;
9021       if (tmpnode == NULL)
9022         {
9023           *tree = NULL;
9024           *node = NULL;
9025           return FALSE;
9026         }
9027       if (i >= depth)
9028         {
9029           *tree = tmptree;
9030           *node = tmpnode;
9031           return FALSE;
9032         }
9033       *tree = tmptree;
9034       *node = tmpnode;
9035       tmptree = tmpnode->children;
9036       if (tmptree == NULL)
9037         return TRUE;
9038     }
9039   while (1);
9040 }
9041
9042 static gboolean
9043 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9044                                   GtkTreeViewColumn *column)
9045 {
9046   GList *list;
9047
9048   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9049     return FALSE;
9050
9051   if (tree_view->priv->expander_column != NULL)
9052     {
9053       if (tree_view->priv->expander_column == column)
9054         return TRUE;
9055       return FALSE;
9056     }
9057   else
9058     {
9059       for (list = tree_view->priv->columns;
9060            list;
9061            list = list->next)
9062         if (((GtkTreeViewColumn *)list->data)->visible)
9063           break;
9064       if (list && list->data == column)
9065         return TRUE;
9066     }
9067   return FALSE;
9068 }
9069
9070 static void
9071 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9072                                 guint           keyval,
9073                                 guint           modmask,
9074                                 gboolean        add_shifted_binding,
9075                                 GtkMovementStep step,
9076                                 gint            count)
9077 {
9078
9079   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9080                                 "move-cursor", 2,
9081                                 G_TYPE_ENUM, step,
9082                                 G_TYPE_INT, count);
9083
9084   if (add_shifted_binding)
9085     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9086                                   "move-cursor", 2,
9087                                   G_TYPE_ENUM, step,
9088                                   G_TYPE_INT, count);
9089
9090   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9091    return;
9092
9093   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9094                                 "move-cursor", 2,
9095                                 G_TYPE_ENUM, step,
9096                                 G_TYPE_INT, count);
9097
9098   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9099                                 "move-cursor", 2,
9100                                 G_TYPE_ENUM, step,
9101                                 G_TYPE_INT, count);
9102 }
9103
9104 static gint
9105 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9106                                  GtkTreeIter  *iter,
9107                                  GtkRBTree    *tree,
9108                                  GtkRBNode    *node)
9109 {
9110   gint retval = FALSE;
9111   do
9112     {
9113       g_return_val_if_fail (node != NULL, FALSE);
9114
9115       if (node->children)
9116         {
9117           GtkTreeIter child;
9118           GtkRBTree *new_tree;
9119           GtkRBNode *new_node;
9120
9121           new_tree = node->children;
9122           new_node = new_tree->root;
9123
9124           while (new_node && new_node->left != new_tree->nil)
9125             new_node = new_node->left;
9126
9127           if (!gtk_tree_model_iter_children (model, &child, iter))
9128             return FALSE;
9129
9130           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9131         }
9132
9133       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9134         retval = TRUE;
9135       gtk_tree_model_unref_node (model, iter);
9136       node = _gtk_rbtree_next (tree, node);
9137     }
9138   while (gtk_tree_model_iter_next (model, iter));
9139
9140   return retval;
9141 }
9142
9143 static gint
9144 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9145                                               GtkRBTree   *tree)
9146 {
9147   GtkTreeIter iter;
9148   GtkTreePath *path;
9149   GtkRBNode *node;
9150   gint retval;
9151
9152   if (!tree)
9153     return FALSE;
9154
9155   node = tree->root;
9156   while (node && node->left != tree->nil)
9157     node = node->left;
9158
9159   g_return_val_if_fail (node != NULL, FALSE);
9160   path = _gtk_tree_view_find_path (tree_view, tree, node);
9161   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9162                            &iter, path);
9163   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9164   gtk_tree_path_free (path);
9165
9166   return retval;
9167 }
9168
9169 static void
9170 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9171                                     GtkTreeViewColumn *column)
9172 {
9173   GtkTreeViewColumn *left_column;
9174   GtkTreeViewColumn *cur_column = NULL;
9175   GtkTreeViewColumnReorder *reorder;
9176   gboolean rtl;
9177   GList *tmp_list;
9178   gint left;
9179
9180   /* We want to precalculate the motion list such that we know what column slots
9181    * are available.
9182    */
9183   left_column = NULL;
9184   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9185
9186   /* First, identify all possible drop spots */
9187   if (rtl)
9188     tmp_list = g_list_last (tree_view->priv->columns);
9189   else
9190     tmp_list = g_list_first (tree_view->priv->columns);
9191
9192   while (tmp_list)
9193     {
9194       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9195       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9196
9197       if (cur_column->visible == FALSE)
9198         continue;
9199
9200       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9201       if (left_column != column && cur_column != column &&
9202           tree_view->priv->column_drop_func &&
9203           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9204         {
9205           left_column = cur_column;
9206           continue;
9207         }
9208       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9209       reorder->left_column = left_column;
9210       left_column = reorder->right_column = cur_column;
9211
9212       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9213     }
9214
9215   /* Add the last one */
9216   if (tree_view->priv->column_drop_func == NULL ||
9217       ((left_column != column) &&
9218        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9219     {
9220       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9221       reorder->left_column = left_column;
9222       reorder->right_column = NULL;
9223       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9224     }
9225
9226   /* We quickly check to see if it even makes sense to reorder columns. */
9227   /* If there is nothing that can be moved, then we return */
9228
9229   if (tree_view->priv->column_drag_info == NULL)
9230     return;
9231
9232   /* We know there are always 2 slots possbile, as you can always return column. */
9233   /* If that's all there is, return */
9234   if (tree_view->priv->column_drag_info->next == NULL ||
9235       (tree_view->priv->column_drag_info->next->next == NULL &&
9236        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9237        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9238     {
9239       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9240         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9241       g_list_free (tree_view->priv->column_drag_info);
9242       tree_view->priv->column_drag_info = NULL;
9243       return;
9244     }
9245   /* We fill in the ranges for the columns, now that we've isolated them */
9246   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9247
9248   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9249     {
9250       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9251
9252       reorder->left_align = left;
9253       if (tmp_list->next != NULL)
9254         {
9255           g_assert (tmp_list->next->data);
9256           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9257                                          reorder->right_column->button->allocation.width +
9258                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9259         }
9260       else
9261         {
9262           gint width;
9263
9264           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9265           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9266         }
9267     }
9268 }
9269
9270 void
9271 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9272                                   GtkTreeViewColumn *column)
9273 {
9274   GdkEvent *send_event;
9275   GtkAllocation allocation;
9276   gint x, y, width, height;
9277   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9278   GdkDisplay *display = gdk_screen_get_display (screen);
9279
9280   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9281   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9282
9283   gtk_tree_view_set_column_drag_info (tree_view, column);
9284
9285   if (tree_view->priv->column_drag_info == NULL)
9286     return;
9287
9288   if (tree_view->priv->drag_window == NULL)
9289     {
9290       GdkWindowAttr attributes;
9291       guint attributes_mask;
9292
9293       attributes.window_type = GDK_WINDOW_CHILD;
9294       attributes.wclass = GDK_INPUT_OUTPUT;
9295       attributes.x = column->button->allocation.x;
9296       attributes.y = 0;
9297       attributes.width = column->button->allocation.width;
9298       attributes.height = column->button->allocation.height;
9299       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9300       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9301       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9302       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9303
9304       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9305                                                      &attributes,
9306                                                      attributes_mask);
9307       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9308     }
9309
9310   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9311   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9312
9313   gtk_grab_remove (column->button);
9314
9315   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9316   send_event->crossing.send_event = TRUE;
9317   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9318   send_event->crossing.subwindow = NULL;
9319   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9320   send_event->crossing.time = GDK_CURRENT_TIME;
9321
9322   gtk_propagate_event (column->button, send_event);
9323   gdk_event_free (send_event);
9324
9325   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9326   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9327   send_event->button.send_event = TRUE;
9328   send_event->button.time = GDK_CURRENT_TIME;
9329   send_event->button.x = -1;
9330   send_event->button.y = -1;
9331   send_event->button.axes = NULL;
9332   send_event->button.state = 0;
9333   send_event->button.button = 1;
9334   send_event->button.device = gdk_display_get_core_pointer (display);
9335   send_event->button.x_root = 0;
9336   send_event->button.y_root = 0;
9337
9338   gtk_propagate_event (column->button, send_event);
9339   gdk_event_free (send_event);
9340
9341   /* Kids, don't try this at home */
9342   g_object_ref (column->button);
9343   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9344   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9345   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9346   g_object_unref (column->button);
9347
9348   tree_view->priv->drag_column_x = column->button->allocation.x;
9349   allocation = column->button->allocation;
9350   allocation.x = 0;
9351   gtk_widget_size_allocate (column->button, &allocation);
9352   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9353
9354   tree_view->priv->drag_column = column;
9355   gdk_window_show (tree_view->priv->drag_window);
9356
9357   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9358   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9359
9360   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9361   while (gtk_events_pending ())
9362     gtk_main_iteration ();
9363
9364   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9365   gdk_pointer_grab (tree_view->priv->drag_window,
9366                     FALSE,
9367                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9368                     NULL, NULL, GDK_CURRENT_TIME);
9369   gdk_keyboard_grab (tree_view->priv->drag_window,
9370                      FALSE,
9371                      GDK_CURRENT_TIME);
9372 }
9373
9374 static void
9375 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9376                                 GtkRBTree          *tree,
9377                                 GtkRBNode          *node,
9378                                 const GdkRectangle *clip_rect)
9379 {
9380   GdkRectangle rect;
9381
9382   if (!GTK_WIDGET_REALIZED (tree_view))
9383     return;
9384
9385   rect.x = 0;
9386   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9387
9388   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9389   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9390
9391   if (clip_rect)
9392     {
9393       GdkRectangle new_rect;
9394
9395       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9396
9397       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9398     }
9399   else
9400     {
9401       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9402     }
9403 }
9404
9405 void
9406 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9407                                 GtkRBTree          *tree,
9408                                 GtkRBNode          *node,
9409                                 const GdkRectangle *clip_rect)
9410 {
9411   GdkRectangle rect;
9412
9413   if (!GTK_WIDGET_REALIZED (tree_view))
9414     return;
9415
9416   rect.x = 0;
9417   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9418
9419   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9420   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9421
9422   if (clip_rect)
9423     {
9424       GdkRectangle new_rect;
9425
9426       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9427
9428       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9429     }
9430   else
9431     {
9432       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9433     }
9434 }
9435
9436 static void
9437 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9438                                GtkTreePath        *path,
9439                                const GdkRectangle *clip_rect)
9440 {
9441   GtkRBTree *tree = NULL;
9442   GtkRBNode *node = NULL;
9443
9444   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9445
9446   if (tree)
9447     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9448 }
9449
9450 /* x and y are the mouse position
9451  */
9452 static void
9453 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9454                           GtkRBTree   *tree,
9455                           GtkRBNode   *node,
9456                           /* in bin_window coordinates */
9457                           gint         x,
9458                           gint         y)
9459 {
9460   GdkRectangle area;
9461   GtkStateType state;
9462   GtkWidget *widget;
9463   gint x_offset = 0;
9464   gint x2;
9465   gint vertical_separator;
9466   gint expander_size;
9467   GtkExpanderStyle expander_style;
9468
9469   gtk_widget_style_get (GTK_WIDGET (tree_view),
9470                         "vertical-separator", &vertical_separator,
9471                         NULL);
9472   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9473
9474   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9475     return;
9476
9477   widget = GTK_WIDGET (tree_view);
9478
9479   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9480
9481   area.x = x_offset;
9482   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9483   area.width = expander_size + 2;
9484   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9485
9486   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9487     {
9488       state = GTK_STATE_INSENSITIVE;
9489     }
9490   else if (node == tree_view->priv->button_pressed_node)
9491     {
9492       if (x >= area.x && x <= (area.x + area.width) &&
9493           y >= area.y && y <= (area.y + area.height))
9494         state = GTK_STATE_ACTIVE;
9495       else
9496         state = GTK_STATE_NORMAL;
9497     }
9498   else
9499     {
9500       if (node == tree_view->priv->prelight_node &&
9501           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9502         state = GTK_STATE_PRELIGHT;
9503       else
9504         state = GTK_STATE_NORMAL;
9505     }
9506
9507   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9508     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9509   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9510     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9511   else if (node->children != NULL)
9512     expander_style = GTK_EXPANDER_EXPANDED;
9513   else
9514     expander_style = GTK_EXPANDER_COLLAPSED;
9515
9516   gtk_paint_expander (widget->style,
9517                       tree_view->priv->bin_window,
9518                       state,
9519                       &area,
9520                       widget,
9521                       "treeview",
9522                       area.x + area.width / 2,
9523                       area.y + area.height / 2,
9524                       expander_style);
9525 }
9526
9527 static void
9528 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9529
9530 {
9531   GtkTreePath *cursor_path;
9532
9533   if ((tree_view->priv->tree == NULL) ||
9534       (! GTK_WIDGET_REALIZED (tree_view)))
9535     return;
9536
9537   cursor_path = NULL;
9538   if (tree_view->priv->cursor)
9539     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9540
9541   if (cursor_path == NULL)
9542     {
9543       /* Consult the selection before defaulting to the
9544        * first focusable element
9545        */
9546       GList *selected_rows;
9547       GtkTreeModel *model;
9548       GtkTreeSelection *selection;
9549
9550       selection = gtk_tree_view_get_selection (tree_view);
9551       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9552
9553       if (selected_rows)
9554         {
9555           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9556           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9557           g_list_free (selected_rows);
9558         }
9559       else
9560         {
9561           cursor_path = gtk_tree_path_new_first ();
9562           search_first_focusable_path (tree_view, &cursor_path,
9563                                        TRUE, NULL, NULL);
9564         }
9565
9566       gtk_tree_row_reference_free (tree_view->priv->cursor);
9567       tree_view->priv->cursor = NULL;
9568
9569       if (cursor_path)
9570         {
9571           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9572             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9573           else
9574             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9575         }
9576     }
9577
9578   if (cursor_path)
9579     {
9580       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9581
9582       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9583       gtk_tree_path_free (cursor_path);
9584
9585       if (tree_view->priv->focus_column == NULL)
9586         {
9587           GList *list;
9588           for (list = tree_view->priv->columns; list; list = list->next)
9589             {
9590               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9591                 {
9592                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9593                   break;
9594                 }
9595             }
9596         }
9597     }
9598 }
9599
9600 static void
9601 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9602                                    gint         count)
9603 {
9604   gint selection_count;
9605   GtkRBTree *cursor_tree = NULL;
9606   GtkRBNode *cursor_node = NULL;
9607   GtkRBTree *new_cursor_tree = NULL;
9608   GtkRBNode *new_cursor_node = NULL;
9609   GtkTreePath *cursor_path = NULL;
9610   gboolean grab_focus = TRUE;
9611   gboolean selectable;
9612
9613   if (! gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9614     return;
9615
9616   cursor_path = NULL;
9617   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9618     /* FIXME: we lost the cursor; should we get the first? */
9619     return;
9620
9621   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9622   _gtk_tree_view_find_node (tree_view, cursor_path,
9623                             &cursor_tree, &cursor_node);
9624
9625   if (cursor_tree == NULL)
9626     /* FIXME: we lost the cursor; should we get the first? */
9627     return;
9628
9629   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9630   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9631                                                       cursor_node,
9632                                                       cursor_path);
9633
9634   if (selection_count == 0
9635       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9636       && !tree_view->priv->ctrl_pressed
9637       && selectable)
9638     {
9639       /* Don't move the cursor, but just select the current node */
9640       new_cursor_tree = cursor_tree;
9641       new_cursor_node = cursor_node;
9642     }
9643   else
9644     {
9645       if (count == -1)
9646         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9647                                &new_cursor_tree, &new_cursor_node);
9648       else
9649         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9650                                &new_cursor_tree, &new_cursor_node);
9651     }
9652
9653   gtk_tree_path_free (cursor_path);
9654
9655   if (new_cursor_node)
9656     {
9657       cursor_path = _gtk_tree_view_find_path (tree_view,
9658                                               new_cursor_tree, new_cursor_node);
9659
9660       search_first_focusable_path (tree_view, &cursor_path,
9661                                    (count != -1),
9662                                    &new_cursor_tree,
9663                                    &new_cursor_node);
9664
9665       if (cursor_path)
9666         gtk_tree_path_free (cursor_path);
9667     }
9668
9669   /*
9670    * If the list has only one item and multi-selection is set then select
9671    * the row (if not yet selected).
9672    */
9673   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9674       new_cursor_node == NULL)
9675     {
9676       if (count == -1)
9677         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9678                                &new_cursor_tree, &new_cursor_node);
9679       else
9680         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9681                                &new_cursor_tree, &new_cursor_node);
9682
9683       if (new_cursor_node == NULL
9684           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9685         {
9686           new_cursor_node = cursor_node;
9687           new_cursor_tree = cursor_tree;
9688         }
9689       else
9690         {
9691           new_cursor_node = NULL;
9692         }
9693     }
9694
9695   if (new_cursor_node)
9696     {
9697       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9698       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9699       gtk_tree_path_free (cursor_path);
9700     }
9701   else
9702     {
9703       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9704
9705       if (!tree_view->priv->shift_pressed)
9706         {
9707           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9708                                           count < 0 ?
9709                                           GTK_DIR_UP : GTK_DIR_DOWN))
9710             {
9711               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9712
9713               if (toplevel)
9714                 gtk_widget_child_focus (toplevel,
9715                                         count < 0 ?
9716                                         GTK_DIR_TAB_BACKWARD :
9717                                         GTK_DIR_TAB_FORWARD);
9718
9719               grab_focus = FALSE;
9720             }
9721         }
9722       else
9723         {
9724           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9725         }
9726     }
9727
9728   if (grab_focus)
9729     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9730 }
9731
9732 static void
9733 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9734                                         gint         count)
9735 {
9736   GtkRBTree *cursor_tree = NULL;
9737   GtkRBNode *cursor_node = NULL;
9738   GtkTreePath *old_cursor_path = NULL;
9739   GtkTreePath *cursor_path = NULL;
9740   GtkRBTree *start_cursor_tree = NULL;
9741   GtkRBNode *start_cursor_node = NULL;
9742   gint y;
9743   gint window_y;
9744   gint vertical_separator;
9745
9746   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9747     return;
9748
9749   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9750     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9751   else
9752     /* This is sorta weird.  Focus in should give us a cursor */
9753     return;
9754
9755   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9756   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9757                             &cursor_tree, &cursor_node);
9758
9759   if (cursor_tree == NULL)
9760     {
9761       /* FIXME: we lost the cursor.  Should we try to get one? */
9762       gtk_tree_path_free (old_cursor_path);
9763       return;
9764     }
9765   g_return_if_fail (cursor_node != NULL);
9766
9767   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9768   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9769   y += tree_view->priv->cursor_offset;
9770   y += count * (int)tree_view->priv->vadjustment->page_increment;
9771   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9772
9773   if (y >= tree_view->priv->height)
9774     y = tree_view->priv->height - 1;
9775
9776   tree_view->priv->cursor_offset =
9777     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9778                              &cursor_tree, &cursor_node);
9779
9780   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9781     {
9782       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9783                              &cursor_tree, &cursor_node);
9784       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9785     }
9786
9787   y -= tree_view->priv->cursor_offset;
9788   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9789
9790   start_cursor_tree = cursor_tree;
9791   start_cursor_node = cursor_node;
9792
9793   if (! search_first_focusable_path (tree_view, &cursor_path,
9794                                      (count != -1),
9795                                      &cursor_tree, &cursor_node))
9796     {
9797       /* It looks like we reached the end of the view without finding
9798        * a focusable row.  We will step backwards to find the last
9799        * focusable row.
9800        */
9801       cursor_tree = start_cursor_tree;
9802       cursor_node = start_cursor_node;
9803       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9804
9805       search_first_focusable_path (tree_view, &cursor_path,
9806                                    (count == -1),
9807                                    &cursor_tree, &cursor_node);
9808     }
9809
9810   if (!cursor_path)
9811     goto cleanup;
9812
9813   /* update y */
9814   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9815
9816   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9817
9818   y -= window_y;
9819   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9820   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9821   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9822
9823   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9824     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9825
9826   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9827
9828 cleanup:
9829   gtk_tree_path_free (old_cursor_path);
9830   gtk_tree_path_free (cursor_path);
9831 }
9832
9833 static void
9834 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9835                                       gint         count)
9836 {
9837   GtkRBTree *cursor_tree = NULL;
9838   GtkRBNode *cursor_node = NULL;
9839   GtkTreePath *cursor_path = NULL;
9840   GtkTreeViewColumn *column;
9841   GtkTreeIter iter;
9842   GList *list;
9843   gboolean found_column = FALSE;
9844   gboolean rtl;
9845
9846   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9847
9848   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9849     return;
9850
9851   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9852     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9853   else
9854     return;
9855
9856   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9857   if (cursor_tree == NULL)
9858     return;
9859   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9860     {
9861       gtk_tree_path_free (cursor_path);
9862       return;
9863     }
9864   gtk_tree_path_free (cursor_path);
9865
9866   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9867   if (tree_view->priv->focus_column)
9868     {
9869       for (; list; list = (rtl ? list->prev : list->next))
9870         {
9871           if (list->data == tree_view->priv->focus_column)
9872             break;
9873         }
9874     }
9875
9876   while (list)
9877     {
9878       gboolean left, right;
9879
9880       column = list->data;
9881       if (column->visible == FALSE)
9882         goto loop_end;
9883
9884       gtk_tree_view_column_cell_set_cell_data (column,
9885                                                tree_view->priv->model,
9886                                                &iter,
9887                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9888                                                cursor_node->children?TRUE:FALSE);
9889
9890       if (rtl)
9891         {
9892           right = list->prev ? TRUE : FALSE;
9893           left = list->next ? TRUE : FALSE;
9894         }
9895       else
9896         {
9897           left = list->prev ? TRUE : FALSE;
9898           right = list->next ? TRUE : FALSE;
9899         }
9900
9901       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9902         {
9903           tree_view->priv->focus_column = column;
9904           found_column = TRUE;
9905           break;
9906         }
9907     loop_end:
9908       if (count == 1)
9909         list = rtl ? list->prev : list->next;
9910       else
9911         list = rtl ? list->next : list->prev;
9912     }
9913
9914   if (found_column)
9915     {
9916       if (!gtk_tree_view_has_special_cell (tree_view))
9917         _gtk_tree_view_queue_draw_node (tree_view,
9918                                         cursor_tree,
9919                                         cursor_node,
9920                                         NULL);
9921       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9922       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9923     }
9924   else
9925     {
9926       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9927     }
9928
9929   gtk_tree_view_clamp_column_visible (tree_view,
9930                                       tree_view->priv->focus_column, TRUE);
9931 }
9932
9933 static void
9934 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9935                                      gint         count)
9936 {
9937   GtkRBTree *cursor_tree;
9938   GtkRBNode *cursor_node;
9939   GtkTreePath *path;
9940   GtkTreePath *old_path;
9941
9942   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
9943     return;
9944
9945   g_return_if_fail (tree_view->priv->tree != NULL);
9946
9947   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9948
9949   cursor_tree = tree_view->priv->tree;
9950   cursor_node = cursor_tree->root;
9951
9952   if (count == -1)
9953     {
9954       while (cursor_node && cursor_node->left != cursor_tree->nil)
9955         cursor_node = cursor_node->left;
9956
9957       /* Now go forward to find the first focusable row. */
9958       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9959       search_first_focusable_path (tree_view, &path,
9960                                    TRUE, &cursor_tree, &cursor_node);
9961     }
9962   else
9963     {
9964       do
9965         {
9966           while (cursor_node && cursor_node->right != cursor_tree->nil)
9967             cursor_node = cursor_node->right;
9968           if (cursor_node->children == NULL)
9969             break;
9970
9971           cursor_tree = cursor_node->children;
9972           cursor_node = cursor_tree->root;
9973         }
9974       while (1);
9975
9976       /* Now go backwards to find last focusable row. */
9977       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9978       search_first_focusable_path (tree_view, &path,
9979                                    FALSE, &cursor_tree, &cursor_node);
9980     }
9981
9982   if (!path)
9983     goto cleanup;
9984
9985   if (gtk_tree_path_compare (old_path, path))
9986     {
9987       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9988       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9989     }
9990   else
9991     {
9992       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9993     }
9994
9995 cleanup:
9996   gtk_tree_path_free (old_path);
9997   gtk_tree_path_free (path);
9998 }
9999
10000 static gboolean
10001 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
10002 {
10003   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10004     return FALSE;
10005
10006   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10007     return FALSE;
10008
10009   gtk_tree_selection_select_all (tree_view->priv->selection);
10010
10011   return TRUE;
10012 }
10013
10014 static gboolean
10015 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10016 {
10017   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10018     return FALSE;
10019
10020   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10021     return FALSE;
10022
10023   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10024
10025   return TRUE;
10026 }
10027
10028 static gboolean
10029 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10030                                       gboolean     start_editing)
10031 {
10032   GtkRBTree *new_tree = NULL;
10033   GtkRBNode *new_node = NULL;
10034   GtkRBTree *cursor_tree = NULL;
10035   GtkRBNode *cursor_node = NULL;
10036   GtkTreePath *cursor_path = NULL;
10037   GtkTreeSelectMode mode = 0;
10038
10039   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10040     return FALSE;
10041
10042   if (tree_view->priv->cursor)
10043     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10044
10045   if (cursor_path == NULL)
10046     return FALSE;
10047
10048   _gtk_tree_view_find_node (tree_view, cursor_path,
10049                             &cursor_tree, &cursor_node);
10050
10051   if (cursor_tree == NULL)
10052     {
10053       gtk_tree_path_free (cursor_path);
10054       return FALSE;
10055     }
10056
10057   if (!tree_view->priv->shift_pressed && start_editing &&
10058       tree_view->priv->focus_column)
10059     {
10060       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10061         {
10062           gtk_tree_path_free (cursor_path);
10063           return TRUE;
10064         }
10065     }
10066
10067   if (tree_view->priv->ctrl_pressed)
10068     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10069   if (tree_view->priv->shift_pressed)
10070     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10071
10072   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10073                                             cursor_node,
10074                                             cursor_tree,
10075                                             cursor_path,
10076                                             mode,
10077                                             FALSE);
10078
10079   /* We bail out if the original (tree, node) don't exist anymore after
10080    * handling the selection-changed callback.  We do return TRUE because
10081    * the key press has been handled at this point.
10082    */
10083   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10084
10085   if (cursor_tree != new_tree || cursor_node != new_node)
10086     return FALSE;
10087
10088   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10089
10090   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10091   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10092
10093   if (!tree_view->priv->shift_pressed)
10094     gtk_tree_view_row_activated (tree_view, cursor_path,
10095                                  tree_view->priv->focus_column);
10096
10097   gtk_tree_path_free (cursor_path);
10098
10099   return TRUE;
10100 }
10101
10102 static gboolean
10103 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10104 {
10105   GtkRBTree *new_tree = NULL;
10106   GtkRBNode *new_node = NULL;
10107   GtkRBTree *cursor_tree = NULL;
10108   GtkRBNode *cursor_node = NULL;
10109   GtkTreePath *cursor_path = NULL;
10110
10111   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10112     return FALSE;
10113
10114   cursor_path = NULL;
10115   if (tree_view->priv->cursor)
10116     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10117
10118   if (cursor_path == NULL)
10119     return FALSE;
10120
10121   _gtk_tree_view_find_node (tree_view, cursor_path,
10122                             &cursor_tree, &cursor_node);
10123   if (cursor_tree == NULL)
10124     {
10125       gtk_tree_path_free (cursor_path);
10126       return FALSE;
10127     }
10128
10129   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10130                                             cursor_node,
10131                                             cursor_tree,
10132                                             cursor_path,
10133                                             GTK_TREE_SELECT_MODE_TOGGLE,
10134                                             FALSE);
10135
10136   /* We bail out if the original (tree, node) don't exist anymore after
10137    * handling the selection-changed callback.  We do return TRUE because
10138    * the key press has been handled at this point.
10139    */
10140   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10141
10142   if (cursor_tree != new_tree || cursor_node != new_node)
10143     return FALSE;
10144
10145   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10146
10147   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10148   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10149   gtk_tree_path_free (cursor_path);
10150
10151   return TRUE;
10152 }
10153
10154 static gboolean
10155 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10156                                                gboolean     logical,
10157                                                gboolean     expand,
10158                                                gboolean     open_all)
10159 {
10160   GtkTreePath *cursor_path = NULL;
10161   GtkRBTree *tree;
10162   GtkRBNode *node;
10163
10164   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10165     return FALSE;
10166
10167   cursor_path = NULL;
10168   if (tree_view->priv->cursor)
10169     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10170
10171   if (cursor_path == NULL)
10172     return FALSE;
10173
10174   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10175     return FALSE;
10176
10177   /* Don't handle the event if we aren't an expander */
10178   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10179     return FALSE;
10180
10181   if (!logical
10182       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10183     expand = !expand;
10184
10185   if (expand)
10186     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10187   else
10188     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10189
10190   gtk_tree_path_free (cursor_path);
10191
10192   return TRUE;
10193 }
10194
10195 static gboolean
10196 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10197 {
10198   GtkRBTree *cursor_tree = NULL;
10199   GtkRBNode *cursor_node = NULL;
10200   GtkTreePath *cursor_path = NULL;
10201   GdkModifierType state;
10202
10203   if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10204     goto out;
10205
10206   cursor_path = NULL;
10207   if (tree_view->priv->cursor)
10208     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10209
10210   if (cursor_path == NULL)
10211     goto out;
10212
10213   _gtk_tree_view_find_node (tree_view, cursor_path,
10214                             &cursor_tree, &cursor_node);
10215   if (cursor_tree == NULL)
10216     {
10217       gtk_tree_path_free (cursor_path);
10218       goto out;
10219     }
10220
10221   if (cursor_tree->parent_node)
10222     {
10223       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10224       cursor_node = cursor_tree->parent_node;
10225       cursor_tree = cursor_tree->parent_tree;
10226
10227       gtk_tree_path_up (cursor_path);
10228
10229       if (gtk_get_current_event_state (&state))
10230         {
10231           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10232             tree_view->priv->ctrl_pressed = TRUE;
10233         }
10234
10235       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
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       tree_view->priv->ctrl_pressed = FALSE;
10243
10244       return TRUE;
10245     }
10246
10247  out:
10248
10249   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10250   return FALSE;
10251 }
10252
10253 static gboolean
10254 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10255 {
10256   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10257   tree_view->priv->typeselect_flush_timeout = 0;
10258
10259   return FALSE;
10260 }
10261
10262 /* Cut and paste from gtkwindow.c */
10263 static void
10264 send_focus_change (GtkWidget *widget,
10265                    gboolean   in)
10266 {
10267   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10268
10269   g_object_ref (widget);
10270
10271  if (in)
10272     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10273   else
10274     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10275
10276   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10277   fevent->focus_change.window = g_object_ref (widget->window);
10278   fevent->focus_change.in = in;
10279
10280   gtk_widget_event (widget, fevent);
10281
10282   g_object_notify (G_OBJECT (widget), "has-focus");
10283
10284   g_object_unref (widget);
10285   gdk_event_free (fevent);
10286 }
10287
10288 static void
10289 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10290 {
10291   GtkWidget *frame, *vbox, *toplevel;
10292   GdkScreen *screen;
10293
10294   if (tree_view->priv->search_custom_entry_set)
10295     return;
10296
10297   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10298   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10299
10300    if (tree_view->priv->search_window != NULL)
10301      {
10302        if (GTK_WINDOW (toplevel)->group)
10303          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10304                                       GTK_WINDOW (tree_view->priv->search_window));
10305        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10306          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10307                                          GTK_WINDOW (tree_view->priv->search_window));
10308        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10309        return;
10310      }
10311
10312   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10313   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10314
10315   if (GTK_WINDOW (toplevel)->group)
10316     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10317                                  GTK_WINDOW (tree_view->priv->search_window));
10318
10319   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10320                             GDK_WINDOW_TYPE_HINT_UTILITY);
10321   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10322   g_signal_connect (tree_view->priv->search_window, "delete-event",
10323                     G_CALLBACK (gtk_tree_view_search_delete_event),
10324                     tree_view);
10325   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10326                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10327                     tree_view);
10328   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10329                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10330                     tree_view);
10331   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10332                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10333                     tree_view);
10334
10335   frame = gtk_frame_new (NULL);
10336   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10337   gtk_widget_show (frame);
10338   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10339
10340   vbox = gtk_vbox_new (FALSE, 0);
10341   gtk_widget_show (vbox);
10342   gtk_container_add (GTK_CONTAINER (frame), vbox);
10343   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10344
10345   /* add entry */
10346   tree_view->priv->search_entry = gtk_entry_new ();
10347   gtk_widget_show (tree_view->priv->search_entry);
10348   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10349                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10350                     tree_view);
10351   g_signal_connect (tree_view->priv->search_entry,
10352                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10353                     tree_view);
10354   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10355                     "preedit-changed",
10356                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10357                     tree_view);
10358   gtk_container_add (GTK_CONTAINER (vbox),
10359                      tree_view->priv->search_entry);
10360
10361   gtk_widget_realize (tree_view->priv->search_entry);
10362 }
10363
10364 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10365  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10366  */
10367 static gboolean
10368 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10369                                              gboolean     keybinding)
10370 {
10371   /* We only start interactive search if we have focus or the columns
10372    * have focus.  If one of our children have focus, we don't want to
10373    * start the search.
10374    */
10375   GList *list;
10376   gboolean found_focus = FALSE;
10377   GtkWidgetClass *entry_parent_class;
10378
10379   if (!tree_view->priv->enable_search && !keybinding)
10380     return FALSE;
10381
10382   if (tree_view->priv->search_custom_entry_set)
10383     return FALSE;
10384
10385   if (tree_view->priv->search_window != NULL &&
10386       gtk_widget_get_visible (tree_view->priv->search_window))
10387     return TRUE;
10388
10389   for (list = tree_view->priv->columns; list; list = list->next)
10390     {
10391       GtkTreeViewColumn *column;
10392
10393       column = list->data;
10394       if (! column->visible)
10395         continue;
10396
10397       if (gtk_widget_has_focus (column->button))
10398         {
10399           found_focus = TRUE;
10400           break;
10401         }
10402     }
10403
10404   if (gtk_widget_has_focus (GTK_WIDGET (tree_view)))
10405     found_focus = TRUE;
10406
10407   if (!found_focus)
10408     return FALSE;
10409
10410   if (tree_view->priv->search_column < 0)
10411     return FALSE;
10412
10413   gtk_tree_view_ensure_interactive_directory (tree_view);
10414
10415   if (keybinding)
10416     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10417
10418   /* done, show it */
10419   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10420   gtk_widget_show (tree_view->priv->search_window);
10421   if (tree_view->priv->search_entry_changed_id == 0)
10422     {
10423       tree_view->priv->search_entry_changed_id =
10424         g_signal_connect (tree_view->priv->search_entry, "changed",
10425                           G_CALLBACK (gtk_tree_view_search_init),
10426                           tree_view);
10427     }
10428
10429   tree_view->priv->typeselect_flush_timeout =
10430     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10431                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10432                    tree_view);
10433
10434   /* Grab focus will select all the text.  We don't want that to happen, so we
10435    * call the parent instance and bypass the selection change.  This is probably
10436    * really non-kosher. */
10437   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10438   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10439
10440   /* send focus-in event */
10441   send_focus_change (tree_view->priv->search_entry, TRUE);
10442
10443   /* search first matching iter */
10444   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10445
10446   return TRUE;
10447 }
10448
10449 static gboolean
10450 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10451 {
10452   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10453 }
10454
10455 /* this function returns the new width of the column being resized given
10456  * the column and x position of the cursor; the x cursor position is passed
10457  * in as a pointer and automagicly corrected if it's beyond min/max limits
10458  */
10459 static gint
10460 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10461                                 gint       i,
10462                                 gint      *x)
10463 {
10464   GtkTreeViewColumn *column;
10465   gint width;
10466   gboolean rtl;
10467
10468   /* first translate the x position from widget->window
10469    * to clist->clist_window
10470    */
10471   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10472   column = g_list_nth (tree_view->priv->columns, i)->data;
10473   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10474
10475   /* Clamp down the value */
10476   if (column->min_width == -1)
10477     width = MAX (column->button->requisition.width,
10478                  width);
10479   else
10480     width = MAX (column->min_width,
10481                  width);
10482   if (column->max_width != -1)
10483     width = MIN (width, column->max_width);
10484
10485   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10486
10487   return width;
10488 }
10489
10490
10491 /* FIXME this adjust_allocation is a big cut-and-paste from
10492  * GtkCList, needs to be some "official" way to do this
10493  * factored out.
10494  */
10495 typedef struct
10496 {
10497   GdkWindow *window;
10498   int dx;
10499   int dy;
10500 } ScrollData;
10501
10502 /* The window to which widget->window is relative */
10503 #define ALLOCATION_WINDOW(widget)               \
10504    (!gtk_widget_get_has_window (widget) ?               \
10505     (widget)->window :                          \
10506      gdk_window_get_parent ((widget)->window))
10507
10508 static void
10509 adjust_allocation_recurse (GtkWidget *widget,
10510                            gpointer   data)
10511 {
10512   ScrollData *scroll_data = data;
10513
10514   /* Need to really size allocate instead of just poking
10515    * into widget->allocation if the widget is not realized.
10516    * FIXME someone figure out why this was.
10517    */
10518   if (!GTK_WIDGET_REALIZED (widget))
10519     {
10520       if (gtk_widget_get_visible (widget))
10521         {
10522           GdkRectangle tmp_rectangle = widget->allocation;
10523           tmp_rectangle.x += scroll_data->dx;
10524           tmp_rectangle.y += scroll_data->dy;
10525
10526           gtk_widget_size_allocate (widget, &tmp_rectangle);
10527         }
10528     }
10529   else
10530     {
10531       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10532         {
10533           widget->allocation.x += scroll_data->dx;
10534           widget->allocation.y += scroll_data->dy;
10535
10536           if (GTK_IS_CONTAINER (widget))
10537             gtk_container_forall (GTK_CONTAINER (widget),
10538                                   adjust_allocation_recurse,
10539                                   data);
10540         }
10541     }
10542 }
10543
10544 static void
10545 adjust_allocation (GtkWidget *widget,
10546                    int        dx,
10547                    int        dy)
10548 {
10549   ScrollData scroll_data;
10550
10551   if (GTK_WIDGET_REALIZED (widget))
10552     scroll_data.window = ALLOCATION_WINDOW (widget);
10553   else
10554     scroll_data.window = NULL;
10555
10556   scroll_data.dx = dx;
10557   scroll_data.dy = dy;
10558
10559   adjust_allocation_recurse (widget, &scroll_data);
10560 }
10561
10562 /* Callbacks */
10563 static void
10564 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10565                                   GtkTreeView   *tree_view)
10566 {
10567   if (GTK_WIDGET_REALIZED (tree_view))
10568     {
10569       gint dy;
10570
10571       gdk_window_move (tree_view->priv->bin_window,
10572                        - tree_view->priv->hadjustment->value,
10573                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10574       gdk_window_move (tree_view->priv->header_window,
10575                        - tree_view->priv->hadjustment->value,
10576                        0);
10577       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10578       if (dy)
10579         {
10580           update_prelight (tree_view,
10581                            tree_view->priv->event_last_x,
10582                            tree_view->priv->event_last_y - dy);
10583
10584           if (tree_view->priv->edited_column &&
10585               GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10586             {
10587               GList *list;
10588               GtkWidget *widget;
10589               GtkTreeViewChild *child = NULL;
10590
10591               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10592               adjust_allocation (widget, 0, dy);
10593
10594               for (list = tree_view->priv->children; list; list = list->next)
10595                 {
10596                   child = (GtkTreeViewChild *)list->data;
10597                   if (child->widget == widget)
10598                     {
10599                       child->y += dy;
10600                       break;
10601                     }
10602                 }
10603             }
10604         }
10605       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10606
10607       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10608         {
10609           /* update our dy and top_row */
10610           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10611
10612           if (!tree_view->priv->in_top_row_to_dy)
10613             gtk_tree_view_dy_to_top_row (tree_view);
10614         }
10615
10616       gdk_window_process_updates (tree_view->priv->header_window, TRUE);
10617       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
10618     }
10619 }
10620
10621 \f
10622
10623 /* Public methods
10624  */
10625
10626 /**
10627  * gtk_tree_view_new:
10628  *
10629  * Creates a new #GtkTreeView widget.
10630  *
10631  * Return value: A newly created #GtkTreeView widget.
10632  **/
10633 GtkWidget *
10634 gtk_tree_view_new (void)
10635 {
10636   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10637 }
10638
10639 /**
10640  * gtk_tree_view_new_with_model:
10641  * @model: the model.
10642  *
10643  * Creates a new #GtkTreeView widget with the model initialized to @model.
10644  *
10645  * Return value: A newly created #GtkTreeView widget.
10646  **/
10647 GtkWidget *
10648 gtk_tree_view_new_with_model (GtkTreeModel *model)
10649 {
10650   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10651 }
10652
10653 /* Public Accessors
10654  */
10655
10656 /**
10657  * gtk_tree_view_get_model:
10658  * @tree_view: a #GtkTreeView
10659  *
10660  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10661  * model is unset.
10662  *
10663  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10664  **/
10665 GtkTreeModel *
10666 gtk_tree_view_get_model (GtkTreeView *tree_view)
10667 {
10668   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10669
10670   return tree_view->priv->model;
10671 }
10672
10673 /**
10674  * gtk_tree_view_set_model:
10675  * @tree_view: A #GtkTreeNode.
10676  * @model: (allow-none): The model.
10677  *
10678  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10679  * set, it will remove it before setting the new model.  If @model is %NULL,
10680  * then it will unset the old model.
10681  **/
10682 void
10683 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10684                          GtkTreeModel *model)
10685 {
10686   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10687   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10688
10689   if (model == tree_view->priv->model)
10690     return;
10691
10692   if (tree_view->priv->scroll_to_path)
10693     {
10694       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10695       tree_view->priv->scroll_to_path = NULL;
10696     }
10697
10698   if (tree_view->priv->model)
10699     {
10700       GList *tmplist = tree_view->priv->columns;
10701
10702       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10703       gtk_tree_view_stop_editing (tree_view, TRUE);
10704
10705       remove_expand_collapse_timeout (tree_view);
10706
10707       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10708                                             gtk_tree_view_row_changed,
10709                                             tree_view);
10710       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10711                                             gtk_tree_view_row_inserted,
10712                                             tree_view);
10713       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10714                                             gtk_tree_view_row_has_child_toggled,
10715                                             tree_view);
10716       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10717                                             gtk_tree_view_row_deleted,
10718                                             tree_view);
10719       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10720                                             gtk_tree_view_rows_reordered,
10721                                             tree_view);
10722
10723       for (; tmplist; tmplist = tmplist->next)
10724         _gtk_tree_view_column_unset_model (tmplist->data,
10725                                            tree_view->priv->model);
10726
10727       if (tree_view->priv->tree)
10728         gtk_tree_view_free_rbtree (tree_view);
10729
10730       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10731       tree_view->priv->drag_dest_row = NULL;
10732       gtk_tree_row_reference_free (tree_view->priv->cursor);
10733       tree_view->priv->cursor = NULL;
10734       gtk_tree_row_reference_free (tree_view->priv->anchor);
10735       tree_view->priv->anchor = NULL;
10736       gtk_tree_row_reference_free (tree_view->priv->top_row);
10737       tree_view->priv->top_row = NULL;
10738       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10739       tree_view->priv->scroll_to_path = NULL;
10740
10741       tree_view->priv->scroll_to_column = NULL;
10742
10743       g_object_unref (tree_view->priv->model);
10744
10745       tree_view->priv->search_column = -1;
10746       tree_view->priv->fixed_height_check = 0;
10747       tree_view->priv->fixed_height = -1;
10748       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10749       tree_view->priv->last_button_x = -1;
10750       tree_view->priv->last_button_y = -1;
10751     }
10752
10753   tree_view->priv->model = model;
10754
10755   if (tree_view->priv->model)
10756     {
10757       gint i;
10758       GtkTreePath *path;
10759       GtkTreeIter iter;
10760       GtkTreeModelFlags flags;
10761
10762       if (tree_view->priv->search_column == -1)
10763         {
10764           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10765             {
10766               GType type = gtk_tree_model_get_column_type (model, i);
10767
10768               if (g_value_type_transformable (type, G_TYPE_STRING))
10769                 {
10770                   tree_view->priv->search_column = i;
10771                   break;
10772                 }
10773             }
10774         }
10775
10776       g_object_ref (tree_view->priv->model);
10777       g_signal_connect (tree_view->priv->model,
10778                         "row-changed",
10779                         G_CALLBACK (gtk_tree_view_row_changed),
10780                         tree_view);
10781       g_signal_connect (tree_view->priv->model,
10782                         "row-inserted",
10783                         G_CALLBACK (gtk_tree_view_row_inserted),
10784                         tree_view);
10785       g_signal_connect (tree_view->priv->model,
10786                         "row-has-child-toggled",
10787                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10788                         tree_view);
10789       g_signal_connect (tree_view->priv->model,
10790                         "row-deleted",
10791                         G_CALLBACK (gtk_tree_view_row_deleted),
10792                         tree_view);
10793       g_signal_connect (tree_view->priv->model,
10794                         "rows-reordered",
10795                         G_CALLBACK (gtk_tree_view_rows_reordered),
10796                         tree_view);
10797
10798       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10799       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10800         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10801       else
10802         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10803
10804       path = gtk_tree_path_new_first ();
10805       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10806         {
10807           tree_view->priv->tree = _gtk_rbtree_new ();
10808           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10809         }
10810       gtk_tree_path_free (path);
10811
10812       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10813       install_presize_handler (tree_view);
10814     }
10815
10816   g_object_notify (G_OBJECT (tree_view), "model");
10817
10818   if (tree_view->priv->selection)
10819   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10820
10821   if (GTK_WIDGET_REALIZED (tree_view))
10822     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10823 }
10824
10825 /**
10826  * gtk_tree_view_get_selection:
10827  * @tree_view: A #GtkTreeView.
10828  *
10829  * Gets the #GtkTreeSelection associated with @tree_view.
10830  *
10831  * Return value: A #GtkTreeSelection object.
10832  **/
10833 GtkTreeSelection *
10834 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10835 {
10836   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10837
10838   return tree_view->priv->selection;
10839 }
10840
10841 /**
10842  * gtk_tree_view_get_hadjustment:
10843  * @tree_view: A #GtkTreeView
10844  *
10845  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10846  *
10847  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10848  * used.
10849  **/
10850 GtkAdjustment *
10851 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10852 {
10853   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10854
10855   if (tree_view->priv->hadjustment == NULL)
10856     gtk_tree_view_set_hadjustment (tree_view, NULL);
10857
10858   return tree_view->priv->hadjustment;
10859 }
10860
10861 /**
10862  * gtk_tree_view_set_hadjustment:
10863  * @tree_view: A #GtkTreeView
10864  * @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
10865  *
10866  * Sets the #GtkAdjustment for the current horizontal aspect.
10867  **/
10868 void
10869 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10870                                GtkAdjustment *adjustment)
10871 {
10872   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10873
10874   gtk_tree_view_set_adjustments (tree_view,
10875                                  adjustment,
10876                                  tree_view->priv->vadjustment);
10877
10878   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10879 }
10880
10881 /**
10882  * gtk_tree_view_get_vadjustment:
10883  * @tree_view: A #GtkTreeView
10884  *
10885  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10886  *
10887  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10888  * used.
10889  **/
10890 GtkAdjustment *
10891 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10892 {
10893   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10894
10895   if (tree_view->priv->vadjustment == NULL)
10896     gtk_tree_view_set_vadjustment (tree_view, NULL);
10897
10898   return tree_view->priv->vadjustment;
10899 }
10900
10901 /**
10902  * gtk_tree_view_set_vadjustment:
10903  * @tree_view: A #GtkTreeView
10904  * @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
10905  *
10906  * Sets the #GtkAdjustment for the current vertical aspect.
10907  **/
10908 void
10909 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10910                                GtkAdjustment *adjustment)
10911 {
10912   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10913
10914   gtk_tree_view_set_adjustments (tree_view,
10915                                  tree_view->priv->hadjustment,
10916                                  adjustment);
10917
10918   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10919 }
10920
10921 /* Column and header operations */
10922
10923 /**
10924  * gtk_tree_view_get_headers_visible:
10925  * @tree_view: A #GtkTreeView.
10926  *
10927  * Returns %TRUE if the headers on the @tree_view are visible.
10928  *
10929  * Return value: Whether the headers are visible or not.
10930  **/
10931 gboolean
10932 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10933 {
10934   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10935
10936   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10937 }
10938
10939 /**
10940  * gtk_tree_view_set_headers_visible:
10941  * @tree_view: A #GtkTreeView.
10942  * @headers_visible: %TRUE if the headers are visible
10943  *
10944  * Sets the visibility state of the headers.
10945  **/
10946 void
10947 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10948                                    gboolean     headers_visible)
10949 {
10950   gint x, y;
10951   GList *list;
10952   GtkTreeViewColumn *column;
10953
10954   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10955
10956   headers_visible = !! headers_visible;
10957
10958   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10959     return;
10960
10961   if (headers_visible)
10962     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10963   else
10964     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10965
10966   if (GTK_WIDGET_REALIZED (tree_view))
10967     {
10968       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10969       if (headers_visible)
10970         {
10971           gdk_window_move_resize (tree_view->priv->bin_window, x, y  + TREE_VIEW_HEADER_HEIGHT (tree_view), tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.height -  + TREE_VIEW_HEADER_HEIGHT (tree_view));
10972
10973           if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
10974             gtk_tree_view_map_buttons (tree_view);
10975         }
10976       else
10977         {
10978           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10979
10980           for (list = tree_view->priv->columns; list; list = list->next)
10981             {
10982               column = list->data;
10983               gtk_widget_unmap (column->button);
10984             }
10985           gdk_window_hide (tree_view->priv->header_window);
10986         }
10987     }
10988
10989   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10990   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10991   tree_view->priv->vadjustment->lower = 0;
10992   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10993   gtk_adjustment_changed (tree_view->priv->vadjustment);
10994
10995   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10996
10997   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10998 }
10999
11000 /**
11001  * gtk_tree_view_columns_autosize:
11002  * @tree_view: A #GtkTreeView.
11003  *
11004  * Resizes all columns to their optimal width. Only works after the
11005  * treeview has been realized.
11006  **/
11007 void
11008 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11009 {
11010   gboolean dirty = FALSE;
11011   GList *list;
11012   GtkTreeViewColumn *column;
11013
11014   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11015
11016   for (list = tree_view->priv->columns; list; list = list->next)
11017     {
11018       column = list->data;
11019       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11020         continue;
11021       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11022       dirty = TRUE;
11023     }
11024
11025   if (dirty)
11026     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11027 }
11028
11029 /**
11030  * gtk_tree_view_set_headers_clickable:
11031  * @tree_view: A #GtkTreeView.
11032  * @setting: %TRUE if the columns are clickable.
11033  *
11034  * Allow the column title buttons to be clicked.
11035  **/
11036 void
11037 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11038                                      gboolean   setting)
11039 {
11040   GList *list;
11041
11042   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11043
11044   for (list = tree_view->priv->columns; list; list = list->next)
11045     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11046
11047   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11048 }
11049
11050
11051 /**
11052  * gtk_tree_view_get_headers_clickable:
11053  * @tree_view: A #GtkTreeView.
11054  *
11055  * Returns whether all header columns are clickable.
11056  *
11057  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11058  *
11059  * Since: 2.10
11060  **/
11061 gboolean
11062 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11063 {
11064   GList *list;
11065
11066   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11067
11068   for (list = tree_view->priv->columns; list; list = list->next)
11069     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11070       return FALSE;
11071
11072   return TRUE;
11073 }
11074
11075 /**
11076  * gtk_tree_view_set_rules_hint
11077  * @tree_view: a #GtkTreeView
11078  * @setting: %TRUE if the tree requires reading across rows
11079  *
11080  * This function tells GTK+ that the user interface for your
11081  * application requires users to read across tree rows and associate
11082  * cells with one another. By default, GTK+ will then render the tree
11083  * with alternating row colors. Do <emphasis>not</emphasis> use it
11084  * just because you prefer the appearance of the ruled tree; that's a
11085  * question for the theme. Some themes will draw tree rows in
11086  * alternating colors even when rules are turned off, and users who
11087  * prefer that appearance all the time can choose those themes. You
11088  * should call this function only as a <emphasis>semantic</emphasis>
11089  * hint to the theme engine that your tree makes alternating colors
11090  * useful from a functional standpoint (since it has lots of columns,
11091  * generally).
11092  *
11093  **/
11094 void
11095 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11096                               gboolean      setting)
11097 {
11098   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11099
11100   setting = setting != FALSE;
11101
11102   if (tree_view->priv->has_rules != setting)
11103     {
11104       tree_view->priv->has_rules = setting;
11105       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11106     }
11107
11108   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11109 }
11110
11111 /**
11112  * gtk_tree_view_get_rules_hint
11113  * @tree_view: a #GtkTreeView
11114  *
11115  * Gets the setting set by gtk_tree_view_set_rules_hint().
11116  *
11117  * Return value: %TRUE if rules are useful for the user of this tree
11118  **/
11119 gboolean
11120 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11121 {
11122   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11123
11124   return tree_view->priv->has_rules;
11125 }
11126
11127 /* Public Column functions
11128  */
11129
11130 /**
11131  * gtk_tree_view_append_column:
11132  * @tree_view: A #GtkTreeView.
11133  * @column: The #GtkTreeViewColumn to add.
11134  *
11135  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11136  * mode enabled, then @column must have its "sizing" property set to be
11137  * GTK_TREE_VIEW_COLUMN_FIXED.
11138  *
11139  * Return value: The number of columns in @tree_view after appending.
11140  **/
11141 gint
11142 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11143                              GtkTreeViewColumn *column)
11144 {
11145   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11146   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11147   g_return_val_if_fail (column->tree_view == NULL, -1);
11148
11149   return gtk_tree_view_insert_column (tree_view, column, -1);
11150 }
11151
11152
11153 /**
11154  * gtk_tree_view_remove_column:
11155  * @tree_view: A #GtkTreeView.
11156  * @column: The #GtkTreeViewColumn to remove.
11157  *
11158  * Removes @column from @tree_view.
11159  *
11160  * Return value: The number of columns in @tree_view after removing.
11161  **/
11162 gint
11163 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11164                              GtkTreeViewColumn *column)
11165 {
11166   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11167   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11168   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11169
11170   if (tree_view->priv->focus_column == column)
11171     tree_view->priv->focus_column = NULL;
11172
11173   if (tree_view->priv->edited_column == column)
11174     {
11175       gtk_tree_view_stop_editing (tree_view, TRUE);
11176
11177       /* no need to, but just to be sure ... */
11178       tree_view->priv->edited_column = NULL;
11179     }
11180
11181   if (tree_view->priv->expander_column == column)
11182     tree_view->priv->expander_column = NULL;
11183
11184   g_signal_handlers_disconnect_by_func (column,
11185                                         G_CALLBACK (column_sizing_notify),
11186                                         tree_view);
11187
11188   _gtk_tree_view_column_unset_tree_view (column);
11189
11190   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11191   tree_view->priv->n_columns--;
11192
11193   if (GTK_WIDGET_REALIZED (tree_view))
11194     {
11195       GList *list;
11196
11197       _gtk_tree_view_column_unrealize_button (column);
11198       for (list = tree_view->priv->columns; list; list = list->next)
11199         {
11200           GtkTreeViewColumn *tmp_column;
11201
11202           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11203           if (tmp_column->visible)
11204             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11205         }
11206
11207       if (tree_view->priv->n_columns == 0 &&
11208           gtk_tree_view_get_headers_visible (tree_view))
11209         gdk_window_hide (tree_view->priv->header_window);
11210
11211       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11212     }
11213
11214   g_object_unref (column);
11215   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11216
11217   return tree_view->priv->n_columns;
11218 }
11219
11220 /**
11221  * gtk_tree_view_insert_column:
11222  * @tree_view: A #GtkTreeView.
11223  * @column: The #GtkTreeViewColumn to be inserted.
11224  * @position: The position to insert @column in.
11225  *
11226  * This inserts the @column into the @tree_view at @position.  If @position is
11227  * -1, then the column is inserted at the end. If @tree_view has
11228  * "fixed_height" mode enabled, then @column must have its "sizing" property
11229  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11230  *
11231  * Return value: The number of columns in @tree_view after insertion.
11232  **/
11233 gint
11234 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11235                              GtkTreeViewColumn *column,
11236                              gint               position)
11237 {
11238   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11239   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11240   g_return_val_if_fail (column->tree_view == NULL, -1);
11241
11242   if (tree_view->priv->fixed_height_mode)
11243     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11244                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11245
11246   g_object_ref_sink (column);
11247
11248   if (tree_view->priv->n_columns == 0 &&
11249       GTK_WIDGET_REALIZED (tree_view) &&
11250       gtk_tree_view_get_headers_visible (tree_view))
11251     {
11252       gdk_window_show (tree_view->priv->header_window);
11253     }
11254
11255   g_signal_connect (column, "notify::sizing",
11256                     G_CALLBACK (column_sizing_notify), tree_view);
11257
11258   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11259                                             column, position);
11260   tree_view->priv->n_columns++;
11261
11262   _gtk_tree_view_column_set_tree_view (column, tree_view);
11263
11264   if (GTK_WIDGET_REALIZED (tree_view))
11265     {
11266       GList *list;
11267
11268       _gtk_tree_view_column_realize_button (column);
11269
11270       for (list = tree_view->priv->columns; list; list = list->next)
11271         {
11272           column = GTK_TREE_VIEW_COLUMN (list->data);
11273           if (column->visible)
11274             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11275         }
11276       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11277     }
11278
11279   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11280
11281   return tree_view->priv->n_columns;
11282 }
11283
11284 /**
11285  * gtk_tree_view_insert_column_with_attributes:
11286  * @tree_view: A #GtkTreeView
11287  * @position: The position to insert the new column in.
11288  * @title: The title to set the header to.
11289  * @cell: The #GtkCellRenderer.
11290  * @Varargs: A %NULL-terminated list of attributes.
11291  *
11292  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11293  * @position.  If @position is -1, then the newly created column is inserted at
11294  * the end.  The column is initialized with the attributes given. If @tree_view
11295  * has "fixed_height" mode enabled, then the new column will have its sizing
11296  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11297  *
11298  * Return value: The number of columns in @tree_view after insertion.
11299  **/
11300 gint
11301 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11302                                              gint             position,
11303                                              const gchar     *title,
11304                                              GtkCellRenderer *cell,
11305                                              ...)
11306 {
11307   GtkTreeViewColumn *column;
11308   gchar *attribute;
11309   va_list args;
11310   gint column_id;
11311
11312   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11313
11314   column = gtk_tree_view_column_new ();
11315   if (tree_view->priv->fixed_height_mode)
11316     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11317
11318   gtk_tree_view_column_set_title (column, title);
11319   gtk_tree_view_column_pack_start (column, cell, TRUE);
11320
11321   va_start (args, cell);
11322
11323   attribute = va_arg (args, gchar *);
11324
11325   while (attribute != NULL)
11326     {
11327       column_id = va_arg (args, gint);
11328       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11329       attribute = va_arg (args, gchar *);
11330     }
11331
11332   va_end (args);
11333
11334   gtk_tree_view_insert_column (tree_view, column, position);
11335
11336   return tree_view->priv->n_columns;
11337 }
11338
11339 /**
11340  * gtk_tree_view_insert_column_with_data_func:
11341  * @tree_view: a #GtkTreeView
11342  * @position: Position to insert, -1 for append
11343  * @title: column title
11344  * @cell: cell renderer for column
11345  * @func: function to set attributes of cell renderer
11346  * @data: data for @func
11347  * @dnotify: destroy notifier for @data
11348  *
11349  * Convenience function that inserts a new column into the #GtkTreeView
11350  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11351  * attributes (normally using data from the model). See also
11352  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11353  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11354  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11355  *
11356  * Return value: number of columns in the tree view post-insert
11357  **/
11358 gint
11359 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11360                                              gint                       position,
11361                                              const gchar               *title,
11362                                              GtkCellRenderer           *cell,
11363                                              GtkTreeCellDataFunc        func,
11364                                              gpointer                   data,
11365                                              GDestroyNotify             dnotify)
11366 {
11367   GtkTreeViewColumn *column;
11368
11369   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11370
11371   column = gtk_tree_view_column_new ();
11372   if (tree_view->priv->fixed_height_mode)
11373     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11374
11375   gtk_tree_view_column_set_title (column, title);
11376   gtk_tree_view_column_pack_start (column, cell, TRUE);
11377   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11378
11379   gtk_tree_view_insert_column (tree_view, column, position);
11380
11381   return tree_view->priv->n_columns;
11382 }
11383
11384 /**
11385  * gtk_tree_view_get_column:
11386  * @tree_view: A #GtkTreeView.
11387  * @n: The position of the column, counting from 0.
11388  *
11389  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11390  *
11391  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11392  * range of columns.
11393  **/
11394 GtkTreeViewColumn *
11395 gtk_tree_view_get_column (GtkTreeView *tree_view,
11396                           gint         n)
11397 {
11398   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11399
11400   if (n < 0 || n >= tree_view->priv->n_columns)
11401     return NULL;
11402
11403   if (tree_view->priv->columns == NULL)
11404     return NULL;
11405
11406   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11407 }
11408
11409 /**
11410  * gtk_tree_view_get_columns:
11411  * @tree_view: A #GtkTreeView
11412  *
11413  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11414  * The returned list must be freed with g_list_free ().
11415  *
11416  * Return value: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
11417  **/
11418 GList *
11419 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11420 {
11421   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11422
11423   return g_list_copy (tree_view->priv->columns);
11424 }
11425
11426 /**
11427  * gtk_tree_view_move_column_after:
11428  * @tree_view: A #GtkTreeView
11429  * @column: The #GtkTreeViewColumn to be moved.
11430  * @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
11431  *
11432  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11433  * @column is placed in the first position.
11434  **/
11435 void
11436 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11437                                  GtkTreeViewColumn *column,
11438                                  GtkTreeViewColumn *base_column)
11439 {
11440   GList *column_list_el, *base_el = NULL;
11441
11442   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11443
11444   column_list_el = g_list_find (tree_view->priv->columns, column);
11445   g_return_if_fail (column_list_el != NULL);
11446
11447   if (base_column)
11448     {
11449       base_el = g_list_find (tree_view->priv->columns, base_column);
11450       g_return_if_fail (base_el != NULL);
11451     }
11452
11453   if (column_list_el->prev == base_el)
11454     return;
11455
11456   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11457   if (base_el == NULL)
11458     {
11459       column_list_el->prev = NULL;
11460       column_list_el->next = tree_view->priv->columns;
11461       if (column_list_el->next)
11462         column_list_el->next->prev = column_list_el;
11463       tree_view->priv->columns = column_list_el;
11464     }
11465   else
11466     {
11467       column_list_el->prev = base_el;
11468       column_list_el->next = base_el->next;
11469       if (column_list_el->next)
11470         column_list_el->next->prev = column_list_el;
11471       base_el->next = column_list_el;
11472     }
11473
11474   if (GTK_WIDGET_REALIZED (tree_view))
11475     {
11476       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11477       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11478     }
11479
11480   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11481 }
11482
11483 /**
11484  * gtk_tree_view_set_expander_column:
11485  * @tree_view: A #GtkTreeView
11486  * @column: %NULL, or the column to draw the expander arrow at.
11487  *
11488  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11489  * If @column is %NULL, then the expander arrow is always at the first
11490  * visible column.
11491  *
11492  * If you do not want expander arrow to appear in your tree, set the
11493  * expander column to a hidden column.
11494  **/
11495 void
11496 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11497                                    GtkTreeViewColumn *column)
11498 {
11499   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11500   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11501
11502   if (tree_view->priv->expander_column != column)
11503     {
11504       GList *list;
11505
11506       if (column)
11507         {
11508           /* Confirm that column is in tree_view */
11509           for (list = tree_view->priv->columns; list; list = list->next)
11510             if (list->data == column)
11511               break;
11512           g_return_if_fail (list != NULL);
11513         }
11514
11515       tree_view->priv->expander_column = column;
11516       g_object_notify (G_OBJECT (tree_view), "expander-column");
11517     }
11518 }
11519
11520 /**
11521  * gtk_tree_view_get_expander_column:
11522  * @tree_view: A #GtkTreeView
11523  *
11524  * Returns the column that is the current expander column.  This
11525  * column has the expander arrow drawn next to it.
11526  *
11527  * Return value: The expander column.
11528  **/
11529 GtkTreeViewColumn *
11530 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11531 {
11532   GList *list;
11533
11534   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11535
11536   for (list = tree_view->priv->columns; list; list = list->next)
11537     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11538       return (GtkTreeViewColumn *) list->data;
11539   return NULL;
11540 }
11541
11542
11543 /**
11544  * gtk_tree_view_set_column_drag_function:
11545  * @tree_view: A #GtkTreeView.
11546  * @func: (allow-none): A function to determine which columns are reorderable, or %NULL.
11547  * @user_data: (allow-none): User data to be passed to @func, or %NULL
11548  * @destroy: (allow-none): Destroy notifier for @user_data, or %NULL
11549  *
11550  * Sets a user function for determining where a column may be dropped when
11551  * dragged.  This function is called on every column pair in turn at the
11552  * beginning of a column drag to determine where a drop can take place.  The
11553  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11554  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11555  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11556  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11557  * @tree_view reverts to the default behavior of allowing all columns to be
11558  * dropped everywhere.
11559  **/
11560 void
11561 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11562                                         GtkTreeViewColumnDropFunc  func,
11563                                         gpointer                   user_data,
11564                                         GDestroyNotify             destroy)
11565 {
11566   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11567
11568   if (tree_view->priv->column_drop_func_data_destroy)
11569     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11570
11571   tree_view->priv->column_drop_func = func;
11572   tree_view->priv->column_drop_func_data = user_data;
11573   tree_view->priv->column_drop_func_data_destroy = destroy;
11574 }
11575
11576 /**
11577  * gtk_tree_view_scroll_to_point:
11578  * @tree_view: a #GtkTreeView
11579  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11580  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11581  *
11582  * Scrolls the tree view such that the top-left corner of the visible
11583  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11584  * in tree coordinates.  The @tree_view must be realized before
11585  * this function is called.  If it isn't, you probably want to be
11586  * using gtk_tree_view_scroll_to_cell().
11587  *
11588  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11589  **/
11590 void
11591 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11592                                gint         tree_x,
11593                                gint         tree_y)
11594 {
11595   GtkAdjustment *hadj;
11596   GtkAdjustment *vadj;
11597
11598   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11599   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11600
11601   hadj = tree_view->priv->hadjustment;
11602   vadj = tree_view->priv->vadjustment;
11603
11604   if (tree_x != -1)
11605     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11606   if (tree_y != -1)
11607     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11608 }
11609
11610 /**
11611  * gtk_tree_view_scroll_to_cell:
11612  * @tree_view: A #GtkTreeView.
11613  * @path: (allow-none): The path of the row to move to, or %NULL.
11614  * @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
11615  * @use_align: whether to use alignment arguments, or %FALSE.
11616  * @row_align: The vertical alignment of the row specified by @path.
11617  * @col_align: The horizontal alignment of the column specified by @column.
11618  *
11619  * Moves the alignments of @tree_view to the position specified by @column and
11620  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11621  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11622  * or @path need to be non-%NULL.  @row_align determines where the row is
11623  * placed, and @col_align determines where @column is placed.  Both are expected
11624  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11625  * right/bottom alignment, 0.5 means center.
11626  *
11627  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11628  * tree does the minimum amount of work to scroll the cell onto the screen.
11629  * This means that the cell will be scrolled to the edge closest to its current
11630  * position.  If the cell is currently visible on the screen, nothing is done.
11631  *
11632  * This function only works if the model is set, and @path is a valid row on the
11633  * model.  If the model changes before the @tree_view is realized, the centered
11634  * path will be modified to reflect this change.
11635  **/
11636 void
11637 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11638                               GtkTreePath       *path,
11639                               GtkTreeViewColumn *column,
11640                               gboolean           use_align,
11641                               gfloat             row_align,
11642                               gfloat             col_align)
11643 {
11644   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11645   g_return_if_fail (tree_view->priv->model != NULL);
11646   g_return_if_fail (tree_view->priv->tree != NULL);
11647   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11648   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11649   g_return_if_fail (path != NULL || column != NULL);
11650
11651 #if 0
11652   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11653            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11654 #endif
11655   row_align = CLAMP (row_align, 0.0, 1.0);
11656   col_align = CLAMP (col_align, 0.0, 1.0);
11657
11658
11659   /* Note: Despite the benefits that come from having one code path for the
11660    * scrolling code, we short-circuit validate_visible_area's immplementation as
11661    * it is much slower than just going to the point.
11662    */
11663   if (! gtk_widget_get_visible (GTK_WIDGET (tree_view)) ||
11664       ! GTK_WIDGET_REALIZED (tree_view) ||
11665       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11666       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11667     {
11668       if (tree_view->priv->scroll_to_path)
11669         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11670
11671       tree_view->priv->scroll_to_path = NULL;
11672       tree_view->priv->scroll_to_column = NULL;
11673
11674       if (path)
11675         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11676       if (column)
11677         tree_view->priv->scroll_to_column = column;
11678       tree_view->priv->scroll_to_use_align = use_align;
11679       tree_view->priv->scroll_to_row_align = row_align;
11680       tree_view->priv->scroll_to_col_align = col_align;
11681
11682       install_presize_handler (tree_view);
11683     }
11684   else
11685     {
11686       GdkRectangle cell_rect;
11687       GdkRectangle vis_rect;
11688       gint dest_x, dest_y;
11689
11690       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11691       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11692
11693       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11694
11695       dest_x = vis_rect.x;
11696       dest_y = vis_rect.y;
11697
11698       if (column)
11699         {
11700           if (use_align)
11701             {
11702               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11703             }
11704           else
11705             {
11706               if (cell_rect.x < vis_rect.x)
11707                 dest_x = cell_rect.x;
11708               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11709                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11710             }
11711         }
11712
11713       if (path)
11714         {
11715           if (use_align)
11716             {
11717               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11718               dest_y = MAX (dest_y, 0);
11719             }
11720           else
11721             {
11722               if (cell_rect.y < vis_rect.y)
11723                 dest_y = cell_rect.y;
11724               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11725                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11726             }
11727         }
11728
11729       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11730     }
11731 }
11732
11733 /**
11734  * gtk_tree_view_row_activated:
11735  * @tree_view: A #GtkTreeView
11736  * @path: The #GtkTreePath to be activated.
11737  * @column: The #GtkTreeViewColumn to be activated.
11738  *
11739  * Activates the cell determined by @path and @column.
11740  **/
11741 void
11742 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11743                              GtkTreePath       *path,
11744                              GtkTreeViewColumn *column)
11745 {
11746   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11747
11748   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11749 }
11750
11751
11752 static void
11753 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11754                                           GtkRBNode *node,
11755                                           gpointer   data)
11756 {
11757   GtkTreeView *tree_view = data;
11758
11759   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11760       node->children)
11761     {
11762       GtkTreePath *path;
11763       GtkTreeIter iter;
11764
11765       path = _gtk_tree_view_find_path (tree_view, tree, node);
11766       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11767
11768       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11769
11770       gtk_tree_path_free (path);
11771     }
11772
11773   if (node->children)
11774     _gtk_rbtree_traverse (node->children,
11775                           node->children->root,
11776                           G_PRE_ORDER,
11777                           gtk_tree_view_expand_all_emission_helper,
11778                           tree_view);
11779 }
11780
11781 /**
11782  * gtk_tree_view_expand_all:
11783  * @tree_view: A #GtkTreeView.
11784  *
11785  * Recursively expands all nodes in the @tree_view.
11786  **/
11787 void
11788 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11789 {
11790   GtkTreePath *path;
11791   GtkRBTree *tree;
11792   GtkRBNode *node;
11793
11794   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11795
11796   if (tree_view->priv->tree == NULL)
11797     return;
11798
11799   path = gtk_tree_path_new_first ();
11800   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11801
11802   while (node)
11803     {
11804       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11805       node = _gtk_rbtree_next (tree, node);
11806       gtk_tree_path_next (path);
11807   }
11808
11809   gtk_tree_path_free (path);
11810 }
11811
11812 /* Timeout to animate the expander during expands and collapses */
11813 static gboolean
11814 expand_collapse_timeout (gpointer data)
11815 {
11816   return do_expand_collapse (data);
11817 }
11818
11819 static void
11820 add_expand_collapse_timeout (GtkTreeView *tree_view,
11821                              GtkRBTree   *tree,
11822                              GtkRBNode   *node,
11823                              gboolean     expand)
11824 {
11825   if (tree_view->priv->expand_collapse_timeout != 0)
11826     return;
11827
11828   tree_view->priv->expand_collapse_timeout =
11829       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11830   tree_view->priv->expanded_collapsed_tree = tree;
11831   tree_view->priv->expanded_collapsed_node = node;
11832
11833   if (expand)
11834     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11835   else
11836     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11837 }
11838
11839 static void
11840 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11841 {
11842   if (tree_view->priv->expand_collapse_timeout)
11843     {
11844       g_source_remove (tree_view->priv->expand_collapse_timeout);
11845       tree_view->priv->expand_collapse_timeout = 0;
11846     }
11847
11848   if (tree_view->priv->expanded_collapsed_node != NULL)
11849     {
11850       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11851       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11852
11853       tree_view->priv->expanded_collapsed_node = NULL;
11854     }
11855 }
11856
11857 static void
11858 cancel_arrow_animation (GtkTreeView *tree_view)
11859 {
11860   if (tree_view->priv->expand_collapse_timeout)
11861     {
11862       while (do_expand_collapse (tree_view));
11863
11864       remove_expand_collapse_timeout (tree_view);
11865     }
11866 }
11867
11868 static gboolean
11869 do_expand_collapse (GtkTreeView *tree_view)
11870 {
11871   GtkRBNode *node;
11872   GtkRBTree *tree;
11873   gboolean expanding;
11874   gboolean redraw;
11875
11876   redraw = FALSE;
11877   expanding = TRUE;
11878
11879   node = tree_view->priv->expanded_collapsed_node;
11880   tree = tree_view->priv->expanded_collapsed_tree;
11881
11882   if (node->children == NULL)
11883     expanding = FALSE;
11884
11885   if (expanding)
11886     {
11887       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11888         {
11889           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11890           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11891
11892           redraw = TRUE;
11893
11894         }
11895       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11896         {
11897           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11898
11899           redraw = TRUE;
11900         }
11901     }
11902   else
11903     {
11904       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11905         {
11906           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11907           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11908
11909           redraw = TRUE;
11910         }
11911       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11912         {
11913           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11914
11915           redraw = TRUE;
11916
11917         }
11918     }
11919
11920   if (redraw)
11921     {
11922       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11923
11924       return TRUE;
11925     }
11926
11927   return FALSE;
11928 }
11929
11930 /**
11931  * gtk_tree_view_collapse_all:
11932  * @tree_view: A #GtkTreeView.
11933  *
11934  * Recursively collapses all visible, expanded nodes in @tree_view.
11935  **/
11936 void
11937 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11938 {
11939   GtkRBTree *tree;
11940   GtkRBNode *node;
11941   GtkTreePath *path;
11942   gint *indices;
11943
11944   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11945
11946   if (tree_view->priv->tree == NULL)
11947     return;
11948
11949   path = gtk_tree_path_new ();
11950   gtk_tree_path_down (path);
11951   indices = gtk_tree_path_get_indices (path);
11952
11953   tree = tree_view->priv->tree;
11954   node = tree->root;
11955   while (node && node->left != tree->nil)
11956     node = node->left;
11957
11958   while (node)
11959     {
11960       if (node->children)
11961         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11962       indices[0]++;
11963       node = _gtk_rbtree_next (tree, node);
11964     }
11965
11966   gtk_tree_path_free (path);
11967 }
11968
11969 /**
11970  * gtk_tree_view_expand_to_path:
11971  * @tree_view: A #GtkTreeView.
11972  * @path: path to a row.
11973  *
11974  * Expands the row at @path. This will also expand all parent rows of
11975  * @path as necessary.
11976  *
11977  * Since: 2.2
11978  **/
11979 void
11980 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11981                               GtkTreePath *path)
11982 {
11983   gint i, depth;
11984   gint *indices;
11985   GtkTreePath *tmp;
11986
11987   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11988   g_return_if_fail (path != NULL);
11989
11990   depth = gtk_tree_path_get_depth (path);
11991   indices = gtk_tree_path_get_indices (path);
11992
11993   tmp = gtk_tree_path_new ();
11994   g_return_if_fail (tmp != NULL);
11995
11996   for (i = 0; i < depth; i++)
11997     {
11998       gtk_tree_path_append_index (tmp, indices[i]);
11999       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
12000     }
12001
12002   gtk_tree_path_free (tmp);
12003 }
12004
12005 /* FIXME the bool return values for expand_row and collapse_row are
12006  * not analagous; they should be TRUE if the row had children and
12007  * was not already in the requested state.
12008  */
12009
12010
12011 static gboolean
12012 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
12013                                GtkTreePath *path,
12014                                GtkRBTree   *tree,
12015                                GtkRBNode   *node,
12016                                gboolean     open_all,
12017                                gboolean     animate)
12018 {
12019   GtkTreeIter iter;
12020   GtkTreeIter temp;
12021   gboolean expand;
12022
12023   if (animate)
12024     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12025                   "gtk-enable-animations", &animate,
12026                   NULL);
12027
12028   remove_auto_expand_timeout (tree_view);
12029
12030   if (node->children && !open_all)
12031     return FALSE;
12032
12033   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
12034     return FALSE;
12035
12036   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12037   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12038     return FALSE;
12039
12040
12041    if (node->children && open_all)
12042     {
12043       gboolean retval = FALSE;
12044       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12045
12046       gtk_tree_path_append_index (tmp_path, 0);
12047       tree = node->children;
12048       node = tree->root;
12049       while (node->left != tree->nil)
12050         node = node->left;
12051       /* try to expand the children */
12052       do
12053         {
12054          gboolean t;
12055          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12056                                             TRUE, animate);
12057          if (t)
12058            retval = TRUE;
12059
12060          gtk_tree_path_next (tmp_path);
12061          node = _gtk_rbtree_next (tree, node);
12062        }
12063       while (node != NULL);
12064
12065       gtk_tree_path_free (tmp_path);
12066
12067       return retval;
12068     }
12069
12070   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12071
12072   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12073     return FALSE;
12074
12075   if (expand)
12076     return FALSE;
12077
12078   node->children = _gtk_rbtree_new ();
12079   node->children->parent_tree = tree;
12080   node->children->parent_node = node;
12081
12082   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12083
12084   gtk_tree_view_build_tree (tree_view,
12085                             node->children,
12086                             &temp,
12087                             gtk_tree_path_get_depth (path) + 1,
12088                             open_all);
12089
12090   remove_expand_collapse_timeout (tree_view);
12091
12092   if (animate)
12093     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12094
12095   install_presize_handler (tree_view);
12096
12097   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12098   if (open_all && node->children)
12099     {
12100       _gtk_rbtree_traverse (node->children,
12101                             node->children->root,
12102                             G_PRE_ORDER,
12103                             gtk_tree_view_expand_all_emission_helper,
12104                             tree_view);
12105     }
12106   return TRUE;
12107 }
12108
12109
12110 /**
12111  * gtk_tree_view_expand_row:
12112  * @tree_view: a #GtkTreeView
12113  * @path: path to a row
12114  * @open_all: whether to recursively expand, or just expand immediate children
12115  *
12116  * Opens the row so its children are visible.
12117  *
12118  * Return value: %TRUE if the row existed and had children
12119  **/
12120 gboolean
12121 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12122                           GtkTreePath *path,
12123                           gboolean     open_all)
12124 {
12125   GtkRBTree *tree;
12126   GtkRBNode *node;
12127
12128   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12129   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12130   g_return_val_if_fail (path != NULL, FALSE);
12131
12132   if (_gtk_tree_view_find_node (tree_view,
12133                                 path,
12134                                 &tree,
12135                                 &node))
12136     return FALSE;
12137
12138   if (tree != NULL)
12139     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12140   else
12141     return FALSE;
12142 }
12143
12144 static gboolean
12145 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12146                                  GtkTreePath *path,
12147                                  GtkRBTree   *tree,
12148                                  GtkRBNode   *node,
12149                                  gboolean     animate)
12150 {
12151   GtkTreeIter iter;
12152   GtkTreeIter children;
12153   gboolean collapse;
12154   gint x, y;
12155   GList *list;
12156   GdkWindow *child, *parent;
12157
12158   if (animate)
12159     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12160                   "gtk-enable-animations", &animate,
12161                   NULL);
12162
12163   remove_auto_expand_timeout (tree_view);
12164
12165   if (node->children == NULL)
12166     return FALSE;
12167
12168   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12169
12170   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12171
12172   if (collapse)
12173     return FALSE;
12174
12175   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12176    * a chance to prelight the correct node below */
12177
12178   if (tree_view->priv->prelight_tree)
12179     {
12180       GtkRBTree *parent_tree;
12181       GtkRBNode *parent_node;
12182
12183       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12184       parent_node = tree_view->priv->prelight_tree->parent_node;
12185       while (parent_tree)
12186         {
12187           if (parent_tree == tree && parent_node == node)
12188             {
12189               ensure_unprelighted (tree_view);
12190               break;
12191             }
12192           parent_node = parent_tree->parent_node;
12193           parent_tree = parent_tree->parent_tree;
12194         }
12195     }
12196
12197   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12198
12199   for (list = tree_view->priv->columns; list; list = list->next)
12200     {
12201       GtkTreeViewColumn *column = list->data;
12202
12203       if (column->visible == FALSE)
12204         continue;
12205       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12206         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12207     }
12208
12209   if (tree_view->priv->destroy_count_func)
12210     {
12211       GtkTreePath *child_path;
12212       gint child_count = 0;
12213       child_path = gtk_tree_path_copy (path);
12214       gtk_tree_path_down (child_path);
12215       if (node->children)
12216         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12217       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12218       gtk_tree_path_free (child_path);
12219     }
12220
12221   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12222     {
12223       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12224
12225       if (gtk_tree_path_is_ancestor (path, cursor_path))
12226         {
12227           gtk_tree_row_reference_free (tree_view->priv->cursor);
12228           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12229                                                                       tree_view->priv->model,
12230                                                                       path);
12231         }
12232       gtk_tree_path_free (cursor_path);
12233     }
12234
12235   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12236     {
12237       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12238       if (gtk_tree_path_is_ancestor (path, anchor_path))
12239         {
12240           gtk_tree_row_reference_free (tree_view->priv->anchor);
12241           tree_view->priv->anchor = NULL;
12242         }
12243       gtk_tree_path_free (anchor_path);
12244     }
12245
12246   /* Stop a pending double click */
12247   tree_view->priv->last_button_x = -1;
12248   tree_view->priv->last_button_y = -1;
12249
12250   remove_expand_collapse_timeout (tree_view);
12251
12252   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12253     {
12254       _gtk_rbtree_remove (node->children);
12255       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12256     }
12257   else
12258     _gtk_rbtree_remove (node->children);
12259
12260   if (animate)
12261     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12262
12263   if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
12264     {
12265       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12266     }
12267
12268   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12269
12270   if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
12271     {
12272       /* now that we've collapsed all rows, we want to try to set the prelight
12273        * again. To do this, we fake a motion event and send it to ourselves. */
12274
12275       child = tree_view->priv->bin_window;
12276       parent = gdk_window_get_parent (child);
12277
12278       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12279         {
12280           GdkEventMotion event;
12281           gint child_x, child_y;
12282
12283           gdk_window_get_position (child, &child_x, &child_y);
12284
12285           event.window = tree_view->priv->bin_window;
12286           event.x = x - child_x;
12287           event.y = y - child_y;
12288
12289           /* despite the fact this isn't a real event, I'm almost positive it will
12290            * never trigger a drag event.  maybe_drag is the only function that uses
12291            * more than just event.x and event.y. */
12292           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12293         }
12294     }
12295
12296   return TRUE;
12297 }
12298
12299 /**
12300  * gtk_tree_view_collapse_row:
12301  * @tree_view: a #GtkTreeView
12302  * @path: path to a row in the @tree_view
12303  *
12304  * Collapses a row (hides its child rows, if they exist).
12305  *
12306  * Return value: %TRUE if the row was collapsed.
12307  **/
12308 gboolean
12309 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12310                             GtkTreePath *path)
12311 {
12312   GtkRBTree *tree;
12313   GtkRBNode *node;
12314
12315   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12316   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12317   g_return_val_if_fail (path != NULL, FALSE);
12318
12319   if (_gtk_tree_view_find_node (tree_view,
12320                                 path,
12321                                 &tree,
12322                                 &node))
12323     return FALSE;
12324
12325   if (tree == NULL || node->children == NULL)
12326     return FALSE;
12327
12328   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12329 }
12330
12331 static void
12332 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12333                                         GtkRBTree              *tree,
12334                                         GtkTreePath            *path,
12335                                         GtkTreeViewMappingFunc  func,
12336                                         gpointer                user_data)
12337 {
12338   GtkRBNode *node;
12339
12340   if (tree == NULL || tree->root == NULL)
12341     return;
12342
12343   node = tree->root;
12344
12345   while (node && node->left != tree->nil)
12346     node = node->left;
12347
12348   while (node)
12349     {
12350       if (node->children)
12351         {
12352           (* func) (tree_view, path, user_data);
12353           gtk_tree_path_down (path);
12354           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12355           gtk_tree_path_up (path);
12356         }
12357       gtk_tree_path_next (path);
12358       node = _gtk_rbtree_next (tree, node);
12359     }
12360 }
12361
12362 /**
12363  * gtk_tree_view_map_expanded_rows:
12364  * @tree_view: A #GtkTreeView
12365  * @func: A function to be called
12366  * @data: User data to be passed to the function.
12367  *
12368  * Calls @func on all expanded rows.
12369  **/
12370 void
12371 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12372                                  GtkTreeViewMappingFunc  func,
12373                                  gpointer                user_data)
12374 {
12375   GtkTreePath *path;
12376
12377   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12378   g_return_if_fail (func != NULL);
12379
12380   path = gtk_tree_path_new_first ();
12381
12382   gtk_tree_view_map_expanded_rows_helper (tree_view,
12383                                           tree_view->priv->tree,
12384                                           path, func, user_data);
12385
12386   gtk_tree_path_free (path);
12387 }
12388
12389 /**
12390  * gtk_tree_view_row_expanded:
12391  * @tree_view: A #GtkTreeView.
12392  * @path: A #GtkTreePath to test expansion state.
12393  *
12394  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12395  *
12396  * Return value: %TRUE if #path is expanded.
12397  **/
12398 gboolean
12399 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12400                             GtkTreePath *path)
12401 {
12402   GtkRBTree *tree;
12403   GtkRBNode *node;
12404
12405   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12406   g_return_val_if_fail (path != NULL, FALSE);
12407
12408   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12409
12410   if (node == NULL)
12411     return FALSE;
12412
12413   return (node->children != NULL);
12414 }
12415
12416 /**
12417  * gtk_tree_view_get_reorderable:
12418  * @tree_view: a #GtkTreeView
12419  *
12420  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12421  * gtk_tree_view_set_reorderable().
12422  *
12423  * Return value: %TRUE if the tree can be reordered.
12424  **/
12425 gboolean
12426 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12427 {
12428   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12429
12430   return tree_view->priv->reorderable;
12431 }
12432
12433 /**
12434  * gtk_tree_view_set_reorderable:
12435  * @tree_view: A #GtkTreeView.
12436  * @reorderable: %TRUE, if the tree can be reordered.
12437  *
12438  * This function is a convenience function to allow you to reorder
12439  * models that support the #GtkDragSourceIface and the
12440  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12441  * these.  If @reorderable is %TRUE, then the user can reorder the
12442  * model by dragging and dropping rows. The developer can listen to
12443  * these changes by connecting to the model's row_inserted and
12444  * row_deleted signals. The reordering is implemented by setting up
12445  * the tree view as a drag source and destination. Therefore, drag and
12446  * drop can not be used in a reorderable view for any other purpose.
12447  *
12448  * This function does not give you any degree of control over the order -- any
12449  * reordering is allowed.  If more control is needed, you should probably
12450  * handle drag and drop manually.
12451  **/
12452 void
12453 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12454                                gboolean     reorderable)
12455 {
12456   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12457
12458   reorderable = reorderable != FALSE;
12459
12460   if (tree_view->priv->reorderable == reorderable)
12461     return;
12462
12463   if (reorderable)
12464     {
12465       const GtkTargetEntry row_targets[] = {
12466         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12467       };
12468
12469       gtk_tree_view_enable_model_drag_source (tree_view,
12470                                               GDK_BUTTON1_MASK,
12471                                               row_targets,
12472                                               G_N_ELEMENTS (row_targets),
12473                                               GDK_ACTION_MOVE);
12474       gtk_tree_view_enable_model_drag_dest (tree_view,
12475                                             row_targets,
12476                                             G_N_ELEMENTS (row_targets),
12477                                             GDK_ACTION_MOVE);
12478     }
12479   else
12480     {
12481       gtk_tree_view_unset_rows_drag_source (tree_view);
12482       gtk_tree_view_unset_rows_drag_dest (tree_view);
12483     }
12484
12485   tree_view->priv->reorderable = reorderable;
12486
12487   g_object_notify (G_OBJECT (tree_view), "reorderable");
12488 }
12489
12490 static void
12491 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12492                                GtkTreePath     *path,
12493                                gboolean         clear_and_select,
12494                                gboolean         clamp_node)
12495 {
12496   GtkRBTree *tree = NULL;
12497   GtkRBNode *node = NULL;
12498
12499   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12500     {
12501       GtkTreePath *cursor_path;
12502       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12503       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12504       gtk_tree_path_free (cursor_path);
12505     }
12506
12507   gtk_tree_row_reference_free (tree_view->priv->cursor);
12508   tree_view->priv->cursor = NULL;
12509
12510   /* One cannot set the cursor on a separator.   Also, if
12511    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12512    * before finding the tree and node belonging to path.  The
12513    * path maps to a non-existing path and we will silently bail out.
12514    * We unset tree and node to avoid further processing.
12515    */
12516   if (!row_is_separator (tree_view, NULL, path)
12517       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12518     {
12519       tree_view->priv->cursor =
12520           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12521                                             tree_view->priv->model,
12522                                             path);
12523     }
12524   else
12525     {
12526       tree = NULL;
12527       node = NULL;
12528     }
12529
12530   if (tree != NULL)
12531     {
12532       GtkRBTree *new_tree = NULL;
12533       GtkRBNode *new_node = NULL;
12534
12535       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12536         {
12537           GtkTreeSelectMode mode = 0;
12538
12539           if (tree_view->priv->ctrl_pressed)
12540             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12541           if (tree_view->priv->shift_pressed)
12542             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12543
12544           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12545                                                     node, tree, path, mode,
12546                                                     FALSE);
12547         }
12548
12549       /* We have to re-find tree and node here again, somebody might have
12550        * cleared the node or the whole tree in the GtkTreeSelection::changed
12551        * callback. If the nodes differ we bail out here.
12552        */
12553       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12554
12555       if (tree != new_tree || node != new_node)
12556         return;
12557
12558       if (clamp_node)
12559         {
12560           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12561           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12562         }
12563     }
12564
12565   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12566 }
12567
12568 /**
12569  * gtk_tree_view_get_cursor:
12570  * @tree_view: A #GtkTreeView
12571  * @path: (allow-none): A pointer to be filled with the current cursor path, or %NULL
12572  * @focus_column: (allow-none): A pointer to be filled with the current focus column, or %NULL
12573  *
12574  * Fills in @path and @focus_column with the current path and focus column.  If
12575  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12576  * currently has focus, then *@focus_column will be %NULL.
12577  *
12578  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12579  * you are done with it.
12580  **/
12581 void
12582 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12583                           GtkTreePath       **path,
12584                           GtkTreeViewColumn **focus_column)
12585 {
12586   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12587
12588   if (path)
12589     {
12590       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12591         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12592       else
12593         *path = NULL;
12594     }
12595
12596   if (focus_column)
12597     {
12598       *focus_column = tree_view->priv->focus_column;
12599     }
12600 }
12601
12602 /**
12603  * gtk_tree_view_set_cursor:
12604  * @tree_view: A #GtkTreeView
12605  * @path: A #GtkTreePath
12606  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12607  * @start_editing: %TRUE if the specified cell should start being edited.
12608  *
12609  * Sets the current keyboard focus to be at @path, and selects it.  This is
12610  * useful when you want to focus the user's attention on a particular row.  If
12611  * @focus_column is not %NULL, then focus is given to the column specified by
12612  * it. Additionally, if @focus_column is specified, and @start_editing is
12613  * %TRUE, then editing should be started in the specified cell.
12614  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12615  * in order to give keyboard focus to the widget.  Please note that editing
12616  * can only happen when the widget is realized.
12617  *
12618  * If @path is invalid for @model, the current cursor (if any) will be unset
12619  * and the function will return without failing.
12620  **/
12621 void
12622 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12623                           GtkTreePath       *path,
12624                           GtkTreeViewColumn *focus_column,
12625                           gboolean           start_editing)
12626 {
12627   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12628                                     NULL, start_editing);
12629 }
12630
12631 /**
12632  * gtk_tree_view_set_cursor_on_cell:
12633  * @tree_view: A #GtkTreeView
12634  * @path: A #GtkTreePath
12635  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12636  * @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
12637  * @start_editing: %TRUE if the specified cell should start being edited.
12638  *
12639  * Sets the current keyboard focus to be at @path, and selects it.  This is
12640  * useful when you want to focus the user's attention on a particular row.  If
12641  * @focus_column is not %NULL, then focus is given to the column specified by
12642  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12643  * contains 2 or more editable or activatable cells, then focus is given to
12644  * the cell specified by @focus_cell. Additionally, if @focus_column is
12645  * specified, and @start_editing is %TRUE, then editing should be started in
12646  * the specified cell.  This function is often followed by
12647  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12648  * widget.  Please note that editing can only happen when the widget is
12649  * realized.
12650  *
12651  * If @path is invalid for @model, the current cursor (if any) will be unset
12652  * and the function will return without failing.
12653  *
12654  * Since: 2.2
12655  **/
12656 void
12657 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12658                                   GtkTreePath       *path,
12659                                   GtkTreeViewColumn *focus_column,
12660                                   GtkCellRenderer   *focus_cell,
12661                                   gboolean           start_editing)
12662 {
12663   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12664   g_return_if_fail (path != NULL);
12665   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12666
12667   if (!tree_view->priv->model)
12668     return;
12669
12670   if (focus_cell)
12671     {
12672       g_return_if_fail (focus_column);
12673       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12674     }
12675
12676   /* cancel the current editing, if it exists */
12677   if (tree_view->priv->edited_column &&
12678       tree_view->priv->edited_column->editable_widget)
12679     gtk_tree_view_stop_editing (tree_view, TRUE);
12680
12681   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12682
12683   if (focus_column && focus_column->visible)
12684     {
12685       GList *list;
12686       gboolean column_in_tree = FALSE;
12687
12688       for (list = tree_view->priv->columns; list; list = list->next)
12689         if (list->data == focus_column)
12690           {
12691             column_in_tree = TRUE;
12692             break;
12693           }
12694       g_return_if_fail (column_in_tree);
12695       tree_view->priv->focus_column = focus_column;
12696       if (focus_cell)
12697         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12698       if (start_editing)
12699         gtk_tree_view_start_editing (tree_view, path);
12700     }
12701 }
12702
12703 /**
12704  * gtk_tree_view_get_bin_window:
12705  * @tree_view: A #GtkTreeView
12706  *
12707  * Returns the window that @tree_view renders to.  This is used primarily to
12708  * compare to <literal>event->window</literal> to confirm that the event on
12709  * @tree_view is on the right window.
12710  *
12711  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12712  **/
12713 GdkWindow *
12714 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12715 {
12716   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12717
12718   return tree_view->priv->bin_window;
12719 }
12720
12721 /**
12722  * gtk_tree_view_get_path_at_pos:
12723  * @tree_view: A #GtkTreeView.
12724  * @x: The x position to be identified (relative to bin_window).
12725  * @y: The y position to be identified (relative to bin_window).
12726  * @path: (out) (allow-none): A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12727  * @column: (out) (allow-none): A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12728  * @cell_x: (out) (allow-none): A pointer where the X coordinate relative to the cell can be placed, or %NULL
12729  * @cell_y: (out) (allow-none): A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12730  *
12731  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12732  * (please see gtk_tree_view_get_bin_window()).
12733  * That is, @x and @y are relative to an events coordinates. @x and @y must
12734  * come from an event on the @tree_view only where <literal>event->window ==
12735  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12736  * things like popup menus. If @path is non-%NULL, then it will be filled
12737  * with the #GtkTreePath at that point.  This path should be freed with
12738  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12739  * with the column at that point.  @cell_x and @cell_y return the coordinates
12740  * relative to the cell background (i.e. the @background_area passed to
12741  * gtk_cell_renderer_render()).  This function is only meaningful if
12742  * @tree_view is realized.  Therefore this function will always return %FALSE
12743  * if @tree_view is not realized or does not have a model.
12744  *
12745  * For converting widget coordinates (eg. the ones you get from
12746  * GtkWidget::query-tooltip), please see
12747  * gtk_tree_view_convert_widget_to_bin_window_coords().
12748  *
12749  * Return value: %TRUE if a row exists at that coordinate.
12750  **/
12751 gboolean
12752 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12753                                gint                x,
12754                                gint                y,
12755                                GtkTreePath       **path,
12756                                GtkTreeViewColumn **column,
12757                                gint               *cell_x,
12758                                gint               *cell_y)
12759 {
12760   GtkRBTree *tree;
12761   GtkRBNode *node;
12762   gint y_offset;
12763
12764   g_return_val_if_fail (tree_view != NULL, FALSE);
12765
12766   if (path)
12767     *path = NULL;
12768   if (column)
12769     *column = NULL;
12770
12771   if (tree_view->priv->bin_window == NULL)
12772     return FALSE;
12773
12774   if (tree_view->priv->tree == NULL)
12775     return FALSE;
12776
12777   if (x > tree_view->priv->hadjustment->upper)
12778     return FALSE;
12779
12780   if (x < 0 || y < 0)
12781     return FALSE;
12782
12783   if (column || cell_x)
12784     {
12785       GtkTreeViewColumn *tmp_column;
12786       GtkTreeViewColumn *last_column = NULL;
12787       GList *list;
12788       gint remaining_x = x;
12789       gboolean found = FALSE;
12790       gboolean rtl;
12791
12792       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12793       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12794            list;
12795            list = (rtl ? list->prev : list->next))
12796         {
12797           tmp_column = list->data;
12798
12799           if (tmp_column->visible == FALSE)
12800             continue;
12801
12802           last_column = tmp_column;
12803           if (remaining_x <= tmp_column->width)
12804             {
12805               found = TRUE;
12806
12807               if (column)
12808                 *column = tmp_column;
12809
12810               if (cell_x)
12811                 *cell_x = remaining_x;
12812
12813               break;
12814             }
12815           remaining_x -= tmp_column->width;
12816         }
12817
12818       /* If found is FALSE and there is a last_column, then it the remainder
12819        * space is in that area
12820        */
12821       if (!found)
12822         {
12823           if (last_column)
12824             {
12825               if (column)
12826                 *column = last_column;
12827
12828               if (cell_x)
12829                 *cell_x = last_column->width + remaining_x;
12830             }
12831           else
12832             {
12833               return FALSE;
12834             }
12835         }
12836     }
12837
12838   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12839                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12840                                       &tree, &node);
12841
12842   if (tree == NULL)
12843     return FALSE;
12844
12845   if (cell_y)
12846     *cell_y = y_offset;
12847
12848   if (path)
12849     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12850
12851   return TRUE;
12852 }
12853
12854
12855 /**
12856  * gtk_tree_view_get_cell_area:
12857  * @tree_view: a #GtkTreeView
12858  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12859  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12860  * @rect: rectangle to fill with cell rect
12861  *
12862  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12863  * row specified by @path and the column specified by @column.  If @path is
12864  * %NULL, or points to a path not currently displayed, the @y and @height fields
12865  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12866  * fields will be filled with 0.  The sum of all cell rects does not cover the
12867  * entire tree; there are extra pixels in between rows, for example. The
12868  * returned rectangle is equivalent to the @cell_area passed to
12869  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12870  * realized.
12871  **/
12872 void
12873 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12874                              GtkTreePath        *path,
12875                              GtkTreeViewColumn  *column,
12876                              GdkRectangle       *rect)
12877 {
12878   GtkRBTree *tree = NULL;
12879   GtkRBNode *node = NULL;
12880   gint vertical_separator;
12881   gint horizontal_separator;
12882
12883   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12884   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12885   g_return_if_fail (rect != NULL);
12886   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12887   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12888
12889   gtk_widget_style_get (GTK_WIDGET (tree_view),
12890                         "vertical-separator", &vertical_separator,
12891                         "horizontal-separator", &horizontal_separator,
12892                         NULL);
12893
12894   rect->x = 0;
12895   rect->y = 0;
12896   rect->width = 0;
12897   rect->height = 0;
12898
12899   if (column)
12900     {
12901       rect->x = column->button->allocation.x + horizontal_separator/2;
12902       rect->width = column->button->allocation.width - horizontal_separator;
12903     }
12904
12905   if (path)
12906     {
12907       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12908
12909       /* Get vertical coords */
12910       if ((!ret && tree == NULL) || ret)
12911         return;
12912
12913       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12914       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12915
12916       if (column &&
12917           gtk_tree_view_is_expander_column (tree_view, column))
12918         {
12919           gint depth = gtk_tree_path_get_depth (path);
12920           gboolean rtl;
12921
12922           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12923
12924           if (!rtl)
12925             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12926           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12927
12928           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12929             {
12930               if (!rtl)
12931                 rect->x += depth * tree_view->priv->expander_size;
12932               rect->width -= depth * tree_view->priv->expander_size;
12933             }
12934
12935           rect->width = MAX (rect->width, 0);
12936         }
12937     }
12938 }
12939
12940 /**
12941  * gtk_tree_view_get_background_area:
12942  * @tree_view: a #GtkTreeView
12943  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12944  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12945  * @rect: rectangle to fill with cell background rect
12946  *
12947  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12948  * row specified by @path and the column specified by @column.  If @path is
12949  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12950  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12951  * fields will be filled with 0.  The returned rectangle is equivalent to the
12952  * @background_area passed to gtk_cell_renderer_render().  These background
12953  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12954  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12955  * itself, excluding surrounding borders and the tree expander area.
12956  *
12957  **/
12958 void
12959 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12960                                    GtkTreePath        *path,
12961                                    GtkTreeViewColumn  *column,
12962                                    GdkRectangle       *rect)
12963 {
12964   GtkRBTree *tree = NULL;
12965   GtkRBNode *node = NULL;
12966
12967   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12968   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12969   g_return_if_fail (rect != NULL);
12970
12971   rect->x = 0;
12972   rect->y = 0;
12973   rect->width = 0;
12974   rect->height = 0;
12975
12976   if (path)
12977     {
12978       /* Get vertical coords */
12979
12980       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12981           tree == NULL)
12982         return;
12983
12984       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12985
12986       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12987     }
12988
12989   if (column)
12990     {
12991       gint x2 = 0;
12992
12993       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12994       rect->width = x2 - rect->x;
12995     }
12996 }
12997
12998 /**
12999  * gtk_tree_view_get_visible_rect:
13000  * @tree_view: a #GtkTreeView
13001  * @visible_rect: rectangle to fill
13002  *
13003  * Fills @visible_rect with the currently-visible region of the
13004  * buffer, in tree coordinates. Convert to bin_window coordinates with
13005  * gtk_tree_view_convert_tree_to_bin_window_coords().
13006  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
13007  * scrollable area of the tree.
13008  **/
13009 void
13010 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
13011                                 GdkRectangle *visible_rect)
13012 {
13013   GtkWidget *widget;
13014
13015   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13016
13017   widget = GTK_WIDGET (tree_view);
13018
13019   if (visible_rect)
13020     {
13021       visible_rect->x = tree_view->priv->hadjustment->value;
13022       visible_rect->y = tree_view->priv->vadjustment->value;
13023       visible_rect->width = widget->allocation.width;
13024       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13025     }
13026 }
13027
13028 /**
13029  * gtk_tree_view_widget_to_tree_coords:
13030  * @tree_view: a #GtkTreeView
13031  * @wx: X coordinate relative to bin_window
13032  * @wy: Y coordinate relative to bin_window
13033  * @tx: return location for tree X coordinate
13034  * @ty: return location for tree Y coordinate
13035  *
13036  * Converts bin_window coordinates to coordinates for the
13037  * tree (the full scrollable area of the tree).
13038  *
13039  * Deprecated: 2.12: Due to historial reasons the name of this function is
13040  * incorrect.  For converting coordinates relative to the widget to
13041  * bin_window coordinates, please see
13042  * gtk_tree_view_convert_widget_to_bin_window_coords().
13043  *
13044  **/
13045 void
13046 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
13047                                       gint         wx,
13048                                       gint         wy,
13049                                       gint        *tx,
13050                                       gint        *ty)
13051 {
13052   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13053
13054   if (tx)
13055     *tx = wx + tree_view->priv->hadjustment->value;
13056   if (ty)
13057     *ty = wy + tree_view->priv->dy;
13058 }
13059
13060 /**
13061  * gtk_tree_view_tree_to_widget_coords:
13062  * @tree_view: a #GtkTreeView
13063  * @tx: tree X coordinate
13064  * @ty: tree Y coordinate
13065  * @wx: return location for X coordinate relative to bin_window
13066  * @wy: return location for Y coordinate relative to bin_window
13067  *
13068  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13069  * to bin_window coordinates.
13070  *
13071  * Deprecated: 2.12: Due to historial reasons the name of this function is
13072  * incorrect.  For converting bin_window coordinates to coordinates relative
13073  * to bin_window, please see
13074  * gtk_tree_view_convert_bin_window_to_widget_coords().
13075  *
13076  **/
13077 void
13078 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13079                                      gint         tx,
13080                                      gint         ty,
13081                                      gint        *wx,
13082                                      gint        *wy)
13083 {
13084   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13085
13086   if (wx)
13087     *wx = tx - tree_view->priv->hadjustment->value;
13088   if (wy)
13089     *wy = ty - tree_view->priv->dy;
13090 }
13091
13092
13093 /**
13094  * gtk_tree_view_convert_widget_to_tree_coords:
13095  * @tree_view: a #GtkTreeView
13096  * @wx: X coordinate relative to the widget
13097  * @wy: Y coordinate relative to the widget
13098  * @tx: return location for tree X coordinate
13099  * @ty: return location for tree Y coordinate
13100  *
13101  * Converts widget coordinates to coordinates for the
13102  * tree (the full scrollable area of the tree).
13103  *
13104  * Since: 2.12
13105  **/
13106 void
13107 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13108                                              gint         wx,
13109                                              gint         wy,
13110                                              gint        *tx,
13111                                              gint        *ty)
13112 {
13113   gint x, y;
13114
13115   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13116
13117   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13118                                                      wx, wy,
13119                                                      &x, &y);
13120   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13121                                                    x, y,
13122                                                    tx, ty);
13123 }
13124
13125 /**
13126  * gtk_tree_view_convert_tree_to_widget_coords:
13127  * @tree_view: a #GtkTreeView
13128  * @tx: X coordinate relative to the tree
13129  * @ty: Y coordinate relative to the tree
13130  * @wx: return location for widget X coordinate
13131  * @wy: return location for widget Y coordinate
13132  *
13133  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13134  * to widget coordinates.
13135  *
13136  * Since: 2.12
13137  **/
13138 void
13139 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13140                                              gint         tx,
13141                                              gint         ty,
13142                                              gint        *wx,
13143                                              gint        *wy)
13144 {
13145   gint x, y;
13146
13147   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13148
13149   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13150                                                    tx, ty,
13151                                                    &x, &y);
13152   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13153                                                      x, y,
13154                                                      wx, wy);
13155 }
13156
13157 /**
13158  * gtk_tree_view_convert_widget_to_bin_window_coords:
13159  * @tree_view: a #GtkTreeView
13160  * @wx: X coordinate relative to the widget
13161  * @wy: Y coordinate relative to the widget
13162  * @bx: return location for bin_window X coordinate
13163  * @by: return location for bin_window Y coordinate
13164  *
13165  * Converts widget coordinates to coordinates for the bin_window
13166  * (see gtk_tree_view_get_bin_window()).
13167  *
13168  * Since: 2.12
13169  **/
13170 void
13171 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13172                                                    gint         wx,
13173                                                    gint         wy,
13174                                                    gint        *bx,
13175                                                    gint        *by)
13176 {
13177   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13178
13179   if (bx)
13180     *bx = wx + tree_view->priv->hadjustment->value;
13181   if (by)
13182     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13183 }
13184
13185 /**
13186  * gtk_tree_view_convert_bin_window_to_widget_coords:
13187  * @tree_view: a #GtkTreeView
13188  * @bx: bin_window X coordinate
13189  * @by: bin_window Y coordinate
13190  * @wx: return location for widget X coordinate
13191  * @wy: return location for widget Y coordinate
13192  *
13193  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13194  * to widget relative coordinates.
13195  *
13196  * Since: 2.12
13197  **/
13198 void
13199 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13200                                                    gint         bx,
13201                                                    gint         by,
13202                                                    gint        *wx,
13203                                                    gint        *wy)
13204 {
13205   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13206
13207   if (wx)
13208     *wx = bx - tree_view->priv->hadjustment->value;
13209   if (wy)
13210     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13211 }
13212
13213 /**
13214  * gtk_tree_view_convert_tree_to_bin_window_coords:
13215  * @tree_view: a #GtkTreeView
13216  * @tx: tree X coordinate
13217  * @ty: tree Y coordinate
13218  * @bx: return location for X coordinate relative to bin_window
13219  * @by: return location for Y coordinate relative to bin_window
13220  *
13221  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13222  * to bin_window coordinates.
13223  *
13224  * Since: 2.12
13225  **/
13226 void
13227 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13228                                                  gint         tx,
13229                                                  gint         ty,
13230                                                  gint        *bx,
13231                                                  gint        *by)
13232 {
13233   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13234
13235   if (bx)
13236     *bx = tx;
13237   if (by)
13238     *by = ty - tree_view->priv->dy;
13239 }
13240
13241 /**
13242  * gtk_tree_view_convert_bin_window_to_tree_coords:
13243  * @tree_view: a #GtkTreeView
13244  * @bx: X coordinate relative to bin_window
13245  * @by: Y coordinate relative to bin_window
13246  * @tx: return location for tree X coordinate
13247  * @ty: return location for tree Y coordinate
13248  *
13249  * Converts bin_window coordinates to coordinates for the
13250  * tree (the full scrollable area of the tree).
13251  *
13252  * Since: 2.12
13253  **/
13254 void
13255 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13256                                                  gint         bx,
13257                                                  gint         by,
13258                                                  gint        *tx,
13259                                                  gint        *ty)
13260 {
13261   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13262
13263   if (tx)
13264     *tx = bx;
13265   if (ty)
13266     *ty = by + tree_view->priv->dy;
13267 }
13268
13269
13270
13271 /**
13272  * gtk_tree_view_get_visible_range:
13273  * @tree_view: A #GtkTreeView
13274  * @start_path: (allow-none): Return location for start of region, or %NULL.
13275  * @end_path: (allow-none): Return location for end of region, or %NULL.
13276  *
13277  * Sets @start_path and @end_path to be the first and last visible path.
13278  * Note that there may be invisible paths in between.
13279  *
13280  * The paths should be freed with gtk_tree_path_free() after use.
13281  *
13282  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13283  *
13284  * Since: 2.8
13285  **/
13286 gboolean
13287 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13288                                  GtkTreePath **start_path,
13289                                  GtkTreePath **end_path)
13290 {
13291   GtkRBTree *tree;
13292   GtkRBNode *node;
13293   gboolean retval;
13294
13295   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13296
13297   if (!tree_view->priv->tree)
13298     return FALSE;
13299
13300   retval = TRUE;
13301
13302   if (start_path)
13303     {
13304       _gtk_rbtree_find_offset (tree_view->priv->tree,
13305                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13306                                &tree, &node);
13307       if (node)
13308         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13309       else
13310         retval = FALSE;
13311     }
13312
13313   if (end_path)
13314     {
13315       gint y;
13316
13317       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13318         y = tree_view->priv->height - 1;
13319       else
13320         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13321
13322       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13323       if (node)
13324         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13325       else
13326         retval = FALSE;
13327     }
13328
13329   return retval;
13330 }
13331
13332 static void
13333 unset_reorderable (GtkTreeView *tree_view)
13334 {
13335   if (tree_view->priv->reorderable)
13336     {
13337       tree_view->priv->reorderable = FALSE;
13338       g_object_notify (G_OBJECT (tree_view), "reorderable");
13339     }
13340 }
13341
13342 /**
13343  * gtk_tree_view_enable_model_drag_source:
13344  * @tree_view: a #GtkTreeView
13345  * @start_button_mask: Mask of allowed buttons to start drag
13346  * @targets: the table of targets that the drag will support
13347  * @n_targets: the number of items in @targets
13348  * @actions: the bitmask of possible actions for a drag from this
13349  *    widget
13350  *
13351  * Turns @tree_view into a drag source for automatic DND. Calling this
13352  * method sets #GtkTreeView:reorderable to %FALSE.
13353  **/
13354 void
13355 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13356                                         GdkModifierType           start_button_mask,
13357                                         const GtkTargetEntry     *targets,
13358                                         gint                      n_targets,
13359                                         GdkDragAction             actions)
13360 {
13361   TreeViewDragInfo *di;
13362
13363   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13364
13365   gtk_drag_source_set (GTK_WIDGET (tree_view),
13366                        0,
13367                        targets,
13368                        n_targets,
13369                        actions);
13370
13371   di = ensure_info (tree_view);
13372
13373   di->start_button_mask = start_button_mask;
13374   di->source_actions = actions;
13375   di->source_set = TRUE;
13376
13377   unset_reorderable (tree_view);
13378 }
13379
13380 /**
13381  * gtk_tree_view_enable_model_drag_dest:
13382  * @tree_view: a #GtkTreeView
13383  * @targets: the table of targets that the drag will support
13384  * @n_targets: the number of items in @targets
13385  * @actions: the bitmask of possible actions for a drag from this
13386  *    widget
13387  *
13388  * Turns @tree_view into a drop destination for automatic DND. Calling
13389  * this method sets #GtkTreeView:reorderable to %FALSE.
13390  **/
13391 void
13392 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13393                                       const GtkTargetEntry     *targets,
13394                                       gint                      n_targets,
13395                                       GdkDragAction             actions)
13396 {
13397   TreeViewDragInfo *di;
13398
13399   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13400
13401   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13402                      0,
13403                      targets,
13404                      n_targets,
13405                      actions);
13406
13407   di = ensure_info (tree_view);
13408   di->dest_set = TRUE;
13409
13410   unset_reorderable (tree_view);
13411 }
13412
13413 /**
13414  * gtk_tree_view_unset_rows_drag_source:
13415  * @tree_view: a #GtkTreeView
13416  *
13417  * Undoes the effect of
13418  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13419  * #GtkTreeView:reorderable to %FALSE.
13420  **/
13421 void
13422 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13423 {
13424   TreeViewDragInfo *di;
13425
13426   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13427
13428   di = get_info (tree_view);
13429
13430   if (di)
13431     {
13432       if (di->source_set)
13433         {
13434           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13435           di->source_set = FALSE;
13436         }
13437
13438       if (!di->dest_set && !di->source_set)
13439         remove_info (tree_view);
13440     }
13441
13442   unset_reorderable (tree_view);
13443 }
13444
13445 /**
13446  * gtk_tree_view_unset_rows_drag_dest:
13447  * @tree_view: a #GtkTreeView
13448  *
13449  * Undoes the effect of
13450  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13451  * #GtkTreeView:reorderable to %FALSE.
13452  **/
13453 void
13454 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13455 {
13456   TreeViewDragInfo *di;
13457
13458   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13459
13460   di = get_info (tree_view);
13461
13462   if (di)
13463     {
13464       if (di->dest_set)
13465         {
13466           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13467           di->dest_set = FALSE;
13468         }
13469
13470       if (!di->dest_set && !di->source_set)
13471         remove_info (tree_view);
13472     }
13473
13474   unset_reorderable (tree_view);
13475 }
13476
13477 /**
13478  * gtk_tree_view_set_drag_dest_row:
13479  * @tree_view: a #GtkTreeView
13480  * @path: (allow-none): The path of the row to highlight, or %NULL.
13481  * @pos: Specifies whether to drop before, after or into the row
13482  *
13483  * Sets the row that is highlighted for feedback.
13484  **/
13485 void
13486 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13487                                  GtkTreePath            *path,
13488                                  GtkTreeViewDropPosition pos)
13489 {
13490   GtkTreePath *current_dest;
13491
13492   /* Note; this function is exported to allow a custom DND
13493    * implementation, so it can't touch TreeViewDragInfo
13494    */
13495
13496   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13497
13498   current_dest = NULL;
13499
13500   if (tree_view->priv->drag_dest_row)
13501     {
13502       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13503       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13504     }
13505
13506   /* special case a drop on an empty model */
13507   tree_view->priv->empty_view_drop = 0;
13508
13509   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13510       && gtk_tree_path_get_depth (path) == 1
13511       && gtk_tree_path_get_indices (path)[0] == 0)
13512     {
13513       gint n_children;
13514
13515       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13516                                                    NULL);
13517
13518       if (!n_children)
13519         tree_view->priv->empty_view_drop = 1;
13520     }
13521
13522   tree_view->priv->drag_dest_pos = pos;
13523
13524   if (path)
13525     {
13526       tree_view->priv->drag_dest_row =
13527         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13528       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13529     }
13530   else
13531     tree_view->priv->drag_dest_row = NULL;
13532
13533   if (current_dest)
13534     {
13535       GtkRBTree *tree, *new_tree;
13536       GtkRBNode *node, *new_node;
13537
13538       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13539       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13540
13541       if (tree && node)
13542         {
13543           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13544           if (new_tree && new_node)
13545             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13546
13547           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13548           if (new_tree && new_node)
13549             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13550         }
13551       gtk_tree_path_free (current_dest);
13552     }
13553 }
13554
13555 /**
13556  * gtk_tree_view_get_drag_dest_row:
13557  * @tree_view: a #GtkTreeView
13558  * @path: (allow-none): Return location for the path of the highlighted row, or %NULL.
13559  * @pos: (allow-none): Return location for the drop position, or %NULL
13560  *
13561  * Gets information about the row that is highlighted for feedback.
13562  **/
13563 void
13564 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13565                                  GtkTreePath             **path,
13566                                  GtkTreeViewDropPosition  *pos)
13567 {
13568   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13569
13570   if (path)
13571     {
13572       if (tree_view->priv->drag_dest_row)
13573         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13574       else
13575         {
13576           if (tree_view->priv->empty_view_drop)
13577             *path = gtk_tree_path_new_from_indices (0, -1);
13578           else
13579             *path = NULL;
13580         }
13581     }
13582
13583   if (pos)
13584     *pos = tree_view->priv->drag_dest_pos;
13585 }
13586
13587 /**
13588  * gtk_tree_view_get_dest_row_at_pos:
13589  * @tree_view: a #GtkTreeView
13590  * @drag_x: the position to determine the destination row for
13591  * @drag_y: the position to determine the destination row for
13592  * @path: (allow-none): Return location for the path of the highlighted row, or %NULL.
13593  * @pos: (allow-none): Return location for the drop position, or %NULL
13594  *
13595  * Determines the destination row for a given position.  @drag_x and
13596  * @drag_y are expected to be in widget coordinates.  This function is only
13597  * meaningful if @tree_view is realized.  Therefore this function will always
13598  * return %FALSE if @tree_view is not realized or does not have a model.
13599  *
13600  * Return value: whether there is a row at the given position, %TRUE if this
13601  * is indeed the case.
13602  **/
13603 gboolean
13604 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13605                                    gint                     drag_x,
13606                                    gint                     drag_y,
13607                                    GtkTreePath            **path,
13608                                    GtkTreeViewDropPosition *pos)
13609 {
13610   gint cell_y;
13611   gint bin_x, bin_y;
13612   gdouble offset_into_row;
13613   gdouble third;
13614   GdkRectangle cell;
13615   GtkTreeViewColumn *column = NULL;
13616   GtkTreePath *tmp_path = NULL;
13617
13618   /* Note; this function is exported to allow a custom DND
13619    * implementation, so it can't touch TreeViewDragInfo
13620    */
13621
13622   g_return_val_if_fail (tree_view != NULL, FALSE);
13623   g_return_val_if_fail (drag_x >= 0, FALSE);
13624   g_return_val_if_fail (drag_y >= 0, FALSE);
13625
13626   if (path)
13627     *path = NULL;
13628
13629   if (tree_view->priv->bin_window == NULL)
13630     return FALSE;
13631
13632   if (tree_view->priv->tree == NULL)
13633     return FALSE;
13634
13635   /* If in the top third of a row, we drop before that row; if
13636    * in the bottom third, drop after that row; if in the middle,
13637    * and the row has children, drop into the row.
13638    */
13639   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13640                                                      &bin_x, &bin_y);
13641
13642   if (!gtk_tree_view_get_path_at_pos (tree_view,
13643                                       bin_x,
13644                                       bin_y,
13645                                       &tmp_path,
13646                                       &column,
13647                                       NULL,
13648                                       &cell_y))
13649     return FALSE;
13650
13651   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13652                                      &cell);
13653
13654   offset_into_row = cell_y;
13655
13656   if (path)
13657     *path = tmp_path;
13658   else
13659     gtk_tree_path_free (tmp_path);
13660
13661   tmp_path = NULL;
13662
13663   third = cell.height / 3.0;
13664
13665   if (pos)
13666     {
13667       if (offset_into_row < third)
13668         {
13669           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13670         }
13671       else if (offset_into_row < (cell.height / 2.0))
13672         {
13673           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13674         }
13675       else if (offset_into_row < third * 2.0)
13676         {
13677           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13678         }
13679       else
13680         {
13681           *pos = GTK_TREE_VIEW_DROP_AFTER;
13682         }
13683     }
13684
13685   return TRUE;
13686 }
13687
13688
13689
13690 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13691 /**
13692  * gtk_tree_view_create_row_drag_icon:
13693  * @tree_view: a #GtkTreeView
13694  * @path: a #GtkTreePath in @tree_view
13695  *
13696  * Creates a #GdkPixmap representation of the row at @path.
13697  * This image is used for a drag icon.
13698  *
13699  * Return value: a newly-allocated pixmap of the drag icon.
13700  **/
13701 GdkPixmap *
13702 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13703                                     GtkTreePath  *path)
13704 {
13705   GtkTreeIter   iter;
13706   GtkRBTree    *tree;
13707   GtkRBNode    *node;
13708   gint cell_offset;
13709   GList *list;
13710   GdkRectangle background_area;
13711   GdkRectangle expose_area;
13712   GtkWidget *widget;
13713   gint depth;
13714   /* start drawing inside the black outline */
13715   gint x = 1, y = 1;
13716   GdkDrawable *drawable;
13717   gint bin_window_width;
13718   gboolean is_separator = FALSE;
13719   gboolean rtl;
13720
13721   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13722   g_return_val_if_fail (path != NULL, NULL);
13723
13724   widget = GTK_WIDGET (tree_view);
13725
13726   if (!GTK_WIDGET_REALIZED (tree_view))
13727     return NULL;
13728
13729   depth = gtk_tree_path_get_depth (path);
13730
13731   _gtk_tree_view_find_node (tree_view,
13732                             path,
13733                             &tree,
13734                             &node);
13735
13736   if (tree == NULL)
13737     return NULL;
13738
13739   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13740                                 &iter,
13741                                 path))
13742     return NULL;
13743
13744   is_separator = row_is_separator (tree_view, &iter, NULL);
13745
13746   cell_offset = x;
13747
13748   background_area.y = y;
13749   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13750
13751   gdk_drawable_get_size (tree_view->priv->bin_window,
13752                          &bin_window_width, NULL);
13753
13754   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13755                              bin_window_width + 2,
13756                              background_area.height + 2,
13757                              -1);
13758
13759   expose_area.x = 0;
13760   expose_area.y = 0;
13761   expose_area.width = bin_window_width + 2;
13762   expose_area.height = background_area.height + 2;
13763
13764   gdk_draw_rectangle (drawable,
13765                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13766                       TRUE,
13767                       0, 0,
13768                       bin_window_width + 2,
13769                       background_area.height + 2);
13770
13771   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13772
13773   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13774       list;
13775       list = (rtl ? list->prev : list->next))
13776     {
13777       GtkTreeViewColumn *column = list->data;
13778       GdkRectangle cell_area;
13779       gint vertical_separator;
13780
13781       if (!column->visible)
13782         continue;
13783
13784       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13785                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13786                                                node->children?TRUE:FALSE);
13787
13788       background_area.x = cell_offset;
13789       background_area.width = column->width;
13790
13791       gtk_widget_style_get (widget,
13792                             "vertical-separator", &vertical_separator,
13793                             NULL);
13794
13795       cell_area = background_area;
13796
13797       cell_area.y += vertical_separator / 2;
13798       cell_area.height -= vertical_separator;
13799
13800       if (gtk_tree_view_is_expander_column (tree_view, column))
13801         {
13802           if (!rtl)
13803             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13804           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13805
13806           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13807             {
13808               if (!rtl)
13809                 cell_area.x += depth * tree_view->priv->expander_size;
13810               cell_area.width -= depth * tree_view->priv->expander_size;
13811             }
13812         }
13813
13814       if (gtk_tree_view_column_cell_is_visible (column))
13815         {
13816           if (is_separator)
13817             gtk_paint_hline (widget->style,
13818                              drawable,
13819                              GTK_STATE_NORMAL,
13820                              &cell_area,
13821                              widget,
13822                              NULL,
13823                              cell_area.x,
13824                              cell_area.x + cell_area.width,
13825                              cell_area.y + cell_area.height / 2);
13826           else
13827             _gtk_tree_view_column_cell_render (column,
13828                                                drawable,
13829                                                &background_area,
13830                                                &cell_area,
13831                                                &expose_area,
13832                                                0);
13833         }
13834       cell_offset += column->width;
13835     }
13836
13837   gdk_draw_rectangle (drawable,
13838                       widget->style->black_gc,
13839                       FALSE,
13840                       0, 0,
13841                       bin_window_width + 1,
13842                       background_area.height + 1);
13843
13844   return drawable;
13845 }
13846
13847
13848 /**
13849  * gtk_tree_view_set_destroy_count_func:
13850  * @tree_view: A #GtkTreeView
13851  * @func: (allow-none): Function to be called when a view row is destroyed, or %NULL
13852  * @data: (allow-none): User data to be passed to @func, or %NULL
13853  * @destroy: (allow-none): Destroy notifier for @data, or %NULL
13854  *
13855  * This function should almost never be used.  It is meant for private use by
13856  * ATK for determining the number of visible children that are removed when the
13857  * user collapses a row, or a row is deleted.
13858  **/
13859 void
13860 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13861                                       GtkTreeDestroyCountFunc  func,
13862                                       gpointer                 data,
13863                                       GDestroyNotify           destroy)
13864 {
13865   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13866
13867   if (tree_view->priv->destroy_count_destroy)
13868     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13869
13870   tree_view->priv->destroy_count_func = func;
13871   tree_view->priv->destroy_count_data = data;
13872   tree_view->priv->destroy_count_destroy = destroy;
13873 }
13874
13875
13876 /*
13877  * Interactive search
13878  */
13879
13880 /**
13881  * gtk_tree_view_set_enable_search:
13882  * @tree_view: A #GtkTreeView
13883  * @enable_search: %TRUE, if the user can search interactively
13884  *
13885  * If @enable_search is set, then the user can type in text to search through
13886  * the tree interactively (this is sometimes called "typeahead find").
13887  *
13888  * Note that even if this is %FALSE, the user can still initiate a search
13889  * using the "start-interactive-search" key binding.
13890  */
13891 void
13892 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13893                                  gboolean     enable_search)
13894 {
13895   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13896
13897   enable_search = !!enable_search;
13898
13899   if (tree_view->priv->enable_search != enable_search)
13900     {
13901        tree_view->priv->enable_search = enable_search;
13902        g_object_notify (G_OBJECT (tree_view), "enable-search");
13903     }
13904 }
13905
13906 /**
13907  * gtk_tree_view_get_enable_search:
13908  * @tree_view: A #GtkTreeView
13909  *
13910  * Returns whether or not the tree allows to start interactive searching
13911  * by typing in text.
13912  *
13913  * Return value: whether or not to let the user search interactively
13914  */
13915 gboolean
13916 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13917 {
13918   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13919
13920   return tree_view->priv->enable_search;
13921 }
13922
13923
13924 /**
13925  * gtk_tree_view_get_search_column:
13926  * @tree_view: A #GtkTreeView
13927  *
13928  * Gets the column searched on by the interactive search code.
13929  *
13930  * Return value: the column the interactive search code searches in.
13931  */
13932 gint
13933 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13934 {
13935   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13936
13937   return (tree_view->priv->search_column);
13938 }
13939
13940 /**
13941  * gtk_tree_view_set_search_column:
13942  * @tree_view: A #GtkTreeView
13943  * @column: the column of the model to search in, or -1 to disable searching
13944  *
13945  * Sets @column as the column where the interactive search code should
13946  * search in for the current model.
13947  *
13948  * If the search column is set, users can use the "start-interactive-search"
13949  * key binding to bring up search popup. The enable-search property controls
13950  * whether simply typing text will also start an interactive search.
13951  *
13952  * Note that @column refers to a column of the current model. The search
13953  * column is reset to -1 when the model is changed.
13954  */
13955 void
13956 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13957                                  gint         column)
13958 {
13959   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13960   g_return_if_fail (column >= -1);
13961
13962   if (tree_view->priv->search_column == column)
13963     return;
13964
13965   tree_view->priv->search_column = column;
13966   g_object_notify (G_OBJECT (tree_view), "search-column");
13967 }
13968
13969 /**
13970  * gtk_tree_view_get_search_equal_func:
13971  * @tree_view: A #GtkTreeView
13972  *
13973  * Returns the compare function currently in use.
13974  *
13975  * Return value: the currently used compare function for the search code.
13976  */
13977
13978 GtkTreeViewSearchEqualFunc
13979 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13980 {
13981   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13982
13983   return tree_view->priv->search_equal_func;
13984 }
13985
13986 /**
13987  * gtk_tree_view_set_search_equal_func:
13988  * @tree_view: A #GtkTreeView
13989  * @search_equal_func: the compare function to use during the search
13990  * @search_user_data: (allow-none): user data to pass to @search_equal_func, or %NULL
13991  * @search_destroy: (allow-none): Destroy notifier for @search_user_data, or %NULL
13992  *
13993  * Sets the compare function for the interactive search capabilities; note
13994  * that somewhat like strcmp() returning 0 for equality
13995  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13996  **/
13997 void
13998 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13999                                      GtkTreeViewSearchEqualFunc  search_equal_func,
14000                                      gpointer                    search_user_data,
14001                                      GDestroyNotify              search_destroy)
14002 {
14003   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14004   g_return_if_fail (search_equal_func != NULL);
14005
14006   if (tree_view->priv->search_destroy)
14007     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
14008
14009   tree_view->priv->search_equal_func = search_equal_func;
14010   tree_view->priv->search_user_data = search_user_data;
14011   tree_view->priv->search_destroy = search_destroy;
14012   if (tree_view->priv->search_equal_func == NULL)
14013     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
14014 }
14015
14016 /**
14017  * gtk_tree_view_get_search_entry:
14018  * @tree_view: A #GtkTreeView
14019  *
14020  * Returns the #GtkEntry which is currently in use as interactive search
14021  * entry for @tree_view.  In case the built-in entry is being used, %NULL
14022  * will be returned.
14023  *
14024  * Return value: the entry currently in use as search entry.
14025  *
14026  * Since: 2.10
14027  */
14028 GtkEntry *
14029 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14030 {
14031   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14032
14033   if (tree_view->priv->search_custom_entry_set)
14034     return GTK_ENTRY (tree_view->priv->search_entry);
14035
14036   return NULL;
14037 }
14038
14039 /**
14040  * gtk_tree_view_set_search_entry:
14041  * @tree_view: A #GtkTreeView
14042  * @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
14043  *
14044  * Sets the entry which the interactive search code will use for this
14045  * @tree_view.  This is useful when you want to provide a search entry
14046  * in our interface at all time at a fixed position.  Passing %NULL for
14047  * @entry will make the interactive search code use the built-in popup
14048  * entry again.
14049  *
14050  * Since: 2.10
14051  */
14052 void
14053 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14054                                 GtkEntry    *entry)
14055 {
14056   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14057   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
14058
14059   if (tree_view->priv->search_custom_entry_set)
14060     {
14061       if (tree_view->priv->search_entry_changed_id)
14062         {
14063           g_signal_handler_disconnect (tree_view->priv->search_entry,
14064                                        tree_view->priv->search_entry_changed_id);
14065           tree_view->priv->search_entry_changed_id = 0;
14066         }
14067       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14068                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14069                                             tree_view);
14070
14071       g_object_unref (tree_view->priv->search_entry);
14072     }
14073   else if (tree_view->priv->search_window)
14074     {
14075       gtk_widget_destroy (tree_view->priv->search_window);
14076
14077       tree_view->priv->search_window = NULL;
14078     }
14079
14080   if (entry)
14081     {
14082       tree_view->priv->search_entry = g_object_ref (entry);
14083       tree_view->priv->search_custom_entry_set = TRUE;
14084
14085       if (tree_view->priv->search_entry_changed_id == 0)
14086         {
14087           tree_view->priv->search_entry_changed_id =
14088             g_signal_connect (tree_view->priv->search_entry, "changed",
14089                               G_CALLBACK (gtk_tree_view_search_init),
14090                               tree_view);
14091         }
14092
14093         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14094                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14095                           tree_view);
14096
14097         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14098     }
14099   else
14100     {
14101       tree_view->priv->search_entry = NULL;
14102       tree_view->priv->search_custom_entry_set = FALSE;
14103     }
14104 }
14105
14106 /**
14107  * gtk_tree_view_set_search_position_func:
14108  * @tree_view: A #GtkTreeView
14109  * @func: (allow-none): the function to use to position the search dialog, or %NULL
14110  *    to use the default search position function
14111  * @data: (allow-none): user data to pass to @func, or %NULL
14112  * @destroy: (allow-none): Destroy notifier for @data, or %NULL
14113  *
14114  * Sets the function to use when positioning the search dialog.
14115  *
14116  * Since: 2.10
14117  **/
14118 void
14119 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14120                                         GtkTreeViewSearchPositionFunc  func,
14121                                         gpointer                       user_data,
14122                                         GDestroyNotify                 destroy)
14123 {
14124   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14125
14126   if (tree_view->priv->search_position_destroy)
14127     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14128
14129   tree_view->priv->search_position_func = func;
14130   tree_view->priv->search_position_user_data = user_data;
14131   tree_view->priv->search_position_destroy = destroy;
14132   if (tree_view->priv->search_position_func == NULL)
14133     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14134 }
14135
14136 /**
14137  * gtk_tree_view_get_search_position_func:
14138  * @tree_view: A #GtkTreeView
14139  *
14140  * Returns the positioning function currently in use.
14141  *
14142  * Return value: the currently used function for positioning the search dialog.
14143  *
14144  * Since: 2.10
14145  */
14146 GtkTreeViewSearchPositionFunc
14147 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14148 {
14149   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14150
14151   return tree_view->priv->search_position_func;
14152 }
14153
14154
14155 static void
14156 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14157                                   GtkTreeView *tree_view)
14158 {
14159   if (tree_view->priv->disable_popdown)
14160     return;
14161
14162   if (tree_view->priv->search_entry_changed_id)
14163     {
14164       g_signal_handler_disconnect (tree_view->priv->search_entry,
14165                                    tree_view->priv->search_entry_changed_id);
14166       tree_view->priv->search_entry_changed_id = 0;
14167     }
14168   if (tree_view->priv->typeselect_flush_timeout)
14169     {
14170       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14171       tree_view->priv->typeselect_flush_timeout = 0;
14172     }
14173
14174   if (gtk_widget_get_visible (search_dialog))
14175     {
14176       /* send focus-in event */
14177       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14178       gtk_widget_hide (search_dialog);
14179       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14180       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14181     }
14182 }
14183
14184 static void
14185 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14186                                     GtkWidget   *search_dialog,
14187                                     gpointer     user_data)
14188 {
14189   gint x, y;
14190   gint tree_x, tree_y;
14191   gint tree_width, tree_height;
14192   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14193   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14194   GtkRequisition requisition;
14195   gint monitor_num;
14196   GdkRectangle monitor;
14197
14198   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14199   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14200
14201   gtk_widget_realize (search_dialog);
14202
14203   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14204   gdk_drawable_get_size (tree_window,
14205                          &tree_width,
14206                          &tree_height);
14207   gtk_widget_size_request (search_dialog, &requisition);
14208
14209   if (tree_x + tree_width > gdk_screen_get_width (screen))
14210     x = gdk_screen_get_width (screen) - requisition.width;
14211   else if (tree_x + tree_width - requisition.width < 0)
14212     x = 0;
14213   else
14214     x = tree_x + tree_width - requisition.width;
14215
14216   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14217     y = gdk_screen_get_height (screen) - requisition.height;
14218   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14219     y = 0;
14220   else
14221     y = tree_y + tree_height;
14222
14223   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14224 }
14225
14226 static void
14227 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14228                                       GtkMenu  *menu,
14229                                       gpointer  data)
14230 {
14231   GtkTreeView *tree_view = (GtkTreeView *)data;
14232
14233   tree_view->priv->disable_popdown = 1;
14234   g_signal_connect (menu, "hide",
14235                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14236 }
14237
14238 /* Because we're visible but offscreen, we just set a flag in the preedit
14239  * callback.
14240  */
14241 static void
14242 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14243                                       GtkTreeView  *tree_view)
14244 {
14245   tree_view->priv->imcontext_changed = 1;
14246   if (tree_view->priv->typeselect_flush_timeout)
14247     {
14248       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14249       tree_view->priv->typeselect_flush_timeout =
14250         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14251                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14252                        tree_view);
14253     }
14254
14255 }
14256
14257 static void
14258 gtk_tree_view_search_activate (GtkEntry    *entry,
14259                                GtkTreeView *tree_view)
14260 {
14261   GtkTreePath *path;
14262   GtkRBNode *node;
14263   GtkRBTree *tree;
14264
14265   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14266                                     tree_view);
14267
14268   /* If we have a row selected and it's the cursor row, we activate
14269    * the row XXX */
14270   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14271     {
14272       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14273
14274       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14275
14276       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14277         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14278
14279       gtk_tree_path_free (path);
14280     }
14281 }
14282
14283 static gboolean
14284 gtk_tree_view_real_search_enable_popdown (gpointer data)
14285 {
14286   GtkTreeView *tree_view = (GtkTreeView *)data;
14287
14288   tree_view->priv->disable_popdown = 0;
14289
14290   return FALSE;
14291 }
14292
14293 static void
14294 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14295                                      gpointer   data)
14296 {
14297   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14298 }
14299
14300 static gboolean
14301 gtk_tree_view_search_delete_event (GtkWidget *widget,
14302                                    GdkEventAny *event,
14303                                    GtkTreeView *tree_view)
14304 {
14305   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14306
14307   gtk_tree_view_search_dialog_hide (widget, tree_view);
14308
14309   return TRUE;
14310 }
14311
14312 static gboolean
14313 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14314                                          GdkEventButton *event,
14315                                          GtkTreeView *tree_view)
14316 {
14317   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14318
14319   gtk_tree_view_search_dialog_hide (widget, tree_view);
14320
14321   if (event->window == tree_view->priv->bin_window)
14322     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14323
14324   return TRUE;
14325 }
14326
14327 static gboolean
14328 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14329                                    GdkEventScroll *event,
14330                                    GtkTreeView *tree_view)
14331 {
14332   gboolean retval = FALSE;
14333
14334   if (event->direction == GDK_SCROLL_UP)
14335     {
14336       gtk_tree_view_search_move (widget, tree_view, TRUE);
14337       retval = TRUE;
14338     }
14339   else if (event->direction == GDK_SCROLL_DOWN)
14340     {
14341       gtk_tree_view_search_move (widget, tree_view, FALSE);
14342       retval = TRUE;
14343     }
14344
14345   /* renew the flush timeout */
14346   if (retval && tree_view->priv->typeselect_flush_timeout
14347       && !tree_view->priv->search_custom_entry_set)
14348     {
14349       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14350       tree_view->priv->typeselect_flush_timeout =
14351         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14352                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14353                        tree_view);
14354     }
14355
14356   return retval;
14357 }
14358
14359 static gboolean
14360 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14361                                       GdkEventKey *event,
14362                                       GtkTreeView *tree_view)
14363 {
14364   gboolean retval = FALSE;
14365
14366   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14367   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14368
14369   /* close window and cancel the search */
14370   if (!tree_view->priv->search_custom_entry_set
14371       && (event->keyval == GDK_Escape ||
14372           event->keyval == GDK_Tab ||
14373             event->keyval == GDK_KP_Tab ||
14374             event->keyval == GDK_ISO_Left_Tab))
14375     {
14376       gtk_tree_view_search_dialog_hide (widget, tree_view);
14377       return TRUE;
14378     }
14379
14380   /* select previous matching iter */
14381   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14382     {
14383       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14384         gtk_widget_error_bell (widget);
14385
14386       retval = TRUE;
14387     }
14388
14389   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK))
14390       && (event->keyval == GDK_g || event->keyval == GDK_G))
14391     {
14392       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14393         gtk_widget_error_bell (widget);
14394
14395       retval = TRUE;
14396     }
14397
14398   /* select next matching iter */
14399   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14400     {
14401       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14402         gtk_widget_error_bell (widget);
14403
14404       retval = TRUE;
14405     }
14406
14407   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == GTK_DEFAULT_ACCEL_MOD_MASK)
14408       && (event->keyval == GDK_g || event->keyval == GDK_G))
14409     {
14410       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14411         gtk_widget_error_bell (widget);
14412
14413       retval = TRUE;
14414     }
14415
14416   /* renew the flush timeout */
14417   if (retval && tree_view->priv->typeselect_flush_timeout
14418       && !tree_view->priv->search_custom_entry_set)
14419     {
14420       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14421       tree_view->priv->typeselect_flush_timeout =
14422         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14423                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14424                        tree_view);
14425     }
14426
14427   return retval;
14428 }
14429
14430 /*  this function returns FALSE if there is a search string but
14431  *  nothing was found, and TRUE otherwise.
14432  */
14433 static gboolean
14434 gtk_tree_view_search_move (GtkWidget   *window,
14435                            GtkTreeView *tree_view,
14436                            gboolean     up)
14437 {
14438   gboolean ret;
14439   gint len;
14440   gint count = 0;
14441   const gchar *text;
14442   GtkTreeIter iter;
14443   GtkTreeModel *model;
14444   GtkTreeSelection *selection;
14445
14446   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14447
14448   g_return_val_if_fail (text != NULL, FALSE);
14449
14450   len = strlen (text);
14451
14452   if (up && tree_view->priv->selected_iter == 1)
14453     return strlen (text) < 1;
14454
14455   len = strlen (text);
14456
14457   if (len < 1)
14458     return TRUE;
14459
14460   model = gtk_tree_view_get_model (tree_view);
14461   selection = gtk_tree_view_get_selection (tree_view);
14462
14463   /* search */
14464   gtk_tree_selection_unselect_all (selection);
14465   if (!gtk_tree_model_get_iter_first (model, &iter))
14466     return TRUE;
14467
14468   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14469                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14470
14471   if (ret)
14472     {
14473       /* found */
14474       tree_view->priv->selected_iter += up?(-1):(1);
14475       return TRUE;
14476     }
14477   else
14478     {
14479       /* return to old iter */
14480       count = 0;
14481       gtk_tree_model_get_iter_first (model, &iter);
14482       gtk_tree_view_search_iter (model, selection,
14483                                  &iter, text,
14484                                  &count, tree_view->priv->selected_iter);
14485       return FALSE;
14486     }
14487 }
14488
14489 static gboolean
14490 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14491                                  gint          column,
14492                                  const gchar  *key,
14493                                  GtkTreeIter  *iter,
14494                                  gpointer      search_data)
14495 {
14496   gboolean retval = TRUE;
14497   const gchar *str;
14498   gchar *normalized_string;
14499   gchar *normalized_key;
14500   gchar *case_normalized_string = NULL;
14501   gchar *case_normalized_key = NULL;
14502   GValue value = {0,};
14503   GValue transformed = {0,};
14504
14505   gtk_tree_model_get_value (model, iter, column, &value);
14506
14507   g_value_init (&transformed, G_TYPE_STRING);
14508
14509   if (!g_value_transform (&value, &transformed))
14510     {
14511       g_value_unset (&value);
14512       return TRUE;
14513     }
14514
14515   g_value_unset (&value);
14516
14517   str = g_value_get_string (&transformed);
14518   if (!str)
14519     {
14520       g_value_unset (&transformed);
14521       return TRUE;
14522     }
14523
14524   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14525   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14526
14527   if (normalized_string && normalized_key)
14528     {
14529       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14530       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14531
14532       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14533         retval = FALSE;
14534     }
14535
14536   g_value_unset (&transformed);
14537   g_free (normalized_key);
14538   g_free (normalized_string);
14539   g_free (case_normalized_key);
14540   g_free (case_normalized_string);
14541
14542   return retval;
14543 }
14544
14545 static gboolean
14546 gtk_tree_view_search_iter (GtkTreeModel     *model,
14547                            GtkTreeSelection *selection,
14548                            GtkTreeIter      *iter,
14549                            const gchar      *text,
14550                            gint             *count,
14551                            gint              n)
14552 {
14553   GtkRBTree *tree = NULL;
14554   GtkRBNode *node = NULL;
14555   GtkTreePath *path;
14556
14557   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14558
14559   path = gtk_tree_model_get_path (model, iter);
14560   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14561
14562   do
14563     {
14564       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14565         {
14566           (*count)++;
14567           if (*count == n)
14568             {
14569               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14570                                             TRUE, 0.5, 0.0);
14571               gtk_tree_selection_select_iter (selection, iter);
14572               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14573
14574               if (path)
14575                 gtk_tree_path_free (path);
14576
14577               return TRUE;
14578             }
14579         }
14580
14581       if (node->children)
14582         {
14583           gboolean has_child;
14584           GtkTreeIter tmp;
14585
14586           tree = node->children;
14587           node = tree->root;
14588
14589           while (node->left != tree->nil)
14590             node = node->left;
14591
14592           tmp = *iter;
14593           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14594           gtk_tree_path_down (path);
14595
14596           /* sanity check */
14597           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14598         }
14599       else
14600         {
14601           gboolean done = FALSE;
14602
14603           do
14604             {
14605               node = _gtk_rbtree_next (tree, node);
14606
14607               if (node)
14608                 {
14609                   gboolean has_next;
14610
14611                   has_next = gtk_tree_model_iter_next (model, iter);
14612
14613                   done = TRUE;
14614                   gtk_tree_path_next (path);
14615
14616                   /* sanity check */
14617                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14618                 }
14619               else
14620                 {
14621                   gboolean has_parent;
14622                   GtkTreeIter tmp_iter = *iter;
14623
14624                   node = tree->parent_node;
14625                   tree = tree->parent_tree;
14626
14627                   if (!tree)
14628                     {
14629                       if (path)
14630                         gtk_tree_path_free (path);
14631
14632                       /* we've run out of tree, done with this func */
14633                       return FALSE;
14634                     }
14635
14636                   has_parent = gtk_tree_model_iter_parent (model,
14637                                                            iter,
14638                                                            &tmp_iter);
14639                   gtk_tree_path_up (path);
14640
14641                   /* sanity check */
14642                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14643                 }
14644             }
14645           while (!done);
14646         }
14647     }
14648   while (1);
14649
14650   return FALSE;
14651 }
14652
14653 static void
14654 gtk_tree_view_search_init (GtkWidget   *entry,
14655                            GtkTreeView *tree_view)
14656 {
14657   gint ret;
14658   gint count = 0;
14659   const gchar *text;
14660   GtkTreeIter iter;
14661   GtkTreeModel *model;
14662   GtkTreeSelection *selection;
14663
14664   g_return_if_fail (GTK_IS_ENTRY (entry));
14665   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14666
14667   text = gtk_entry_get_text (GTK_ENTRY (entry));
14668
14669   model = gtk_tree_view_get_model (tree_view);
14670   selection = gtk_tree_view_get_selection (tree_view);
14671
14672   /* search */
14673   gtk_tree_selection_unselect_all (selection);
14674   if (tree_view->priv->typeselect_flush_timeout
14675       && !tree_view->priv->search_custom_entry_set)
14676     {
14677       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14678       tree_view->priv->typeselect_flush_timeout =
14679         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14680                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14681                        tree_view);
14682     }
14683
14684   if (*text == '\0')
14685     return;
14686
14687   if (!gtk_tree_model_get_iter_first (model, &iter))
14688     return;
14689
14690   ret = gtk_tree_view_search_iter (model, selection,
14691                                    &iter, text,
14692                                    &count, 1);
14693
14694   if (ret)
14695     tree_view->priv->selected_iter = 1;
14696 }
14697
14698 static void
14699 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14700                              GtkTreeView     *tree_view)
14701 {
14702   if (tree_view->priv->edited_column == NULL)
14703     return;
14704
14705   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14706   tree_view->priv->edited_column = NULL;
14707
14708   if (gtk_widget_has_focus (GTK_WIDGET (cell_editable)))
14709     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14710
14711   g_signal_handlers_disconnect_by_func (cell_editable,
14712                                         gtk_tree_view_remove_widget,
14713                                         tree_view);
14714
14715   gtk_container_remove (GTK_CONTAINER (tree_view),
14716                         GTK_WIDGET (cell_editable));
14717
14718   /* FIXME should only redraw a single node */
14719   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14720 }
14721
14722 static gboolean
14723 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14724                              GtkTreePath *cursor_path)
14725 {
14726   GtkTreeIter iter;
14727   GdkRectangle background_area;
14728   GdkRectangle cell_area;
14729   GtkCellEditable *editable_widget = NULL;
14730   gchar *path_string;
14731   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14732   gint retval = FALSE;
14733   GtkRBTree *cursor_tree;
14734   GtkRBNode *cursor_node;
14735
14736   g_assert (tree_view->priv->focus_column);
14737
14738   if (! GTK_WIDGET_REALIZED (tree_view))
14739     return FALSE;
14740
14741   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14742       cursor_node == NULL)
14743     return FALSE;
14744
14745   path_string = gtk_tree_path_to_string (cursor_path);
14746   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14747
14748   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14749
14750   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14751                                            tree_view->priv->model,
14752                                            &iter,
14753                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14754                                            cursor_node->children?TRUE:FALSE);
14755   gtk_tree_view_get_background_area (tree_view,
14756                                      cursor_path,
14757                                      tree_view->priv->focus_column,
14758                                      &background_area);
14759   gtk_tree_view_get_cell_area (tree_view,
14760                                cursor_path,
14761                                tree_view->priv->focus_column,
14762                                &cell_area);
14763
14764   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14765                                         &editable_widget,
14766                                         NULL,
14767                                         path_string,
14768                                         &background_area,
14769                                         &cell_area,
14770                                         flags))
14771     {
14772       retval = TRUE;
14773       if (editable_widget != NULL)
14774         {
14775           gint left, right;
14776           GdkRectangle area;
14777           GtkCellRenderer *cell;
14778
14779           area = cell_area;
14780           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14781
14782           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14783
14784           area.x += left;
14785           area.width -= right + left;
14786
14787           gtk_tree_view_real_start_editing (tree_view,
14788                                             tree_view->priv->focus_column,
14789                                             cursor_path,
14790                                             editable_widget,
14791                                             &area,
14792                                             NULL,
14793                                             flags);
14794         }
14795
14796     }
14797   g_free (path_string);
14798   return retval;
14799 }
14800
14801 static void
14802 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14803                                   GtkTreeViewColumn *column,
14804                                   GtkTreePath       *path,
14805                                   GtkCellEditable   *cell_editable,
14806                                   GdkRectangle      *cell_area,
14807                                   GdkEvent          *event,
14808                                   guint              flags)
14809 {
14810   gint pre_val = tree_view->priv->vadjustment->value;
14811   GtkRequisition requisition;
14812
14813   tree_view->priv->edited_column = column;
14814   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14815
14816   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14817   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14818
14819   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14820
14821   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14822
14823   if (requisition.height < cell_area->height)
14824     {
14825       gint diff = cell_area->height - requisition.height;
14826       gtk_tree_view_put (tree_view,
14827                          GTK_WIDGET (cell_editable),
14828                          cell_area->x, cell_area->y + diff/2,
14829                          cell_area->width, requisition.height);
14830     }
14831   else
14832     {
14833       gtk_tree_view_put (tree_view,
14834                          GTK_WIDGET (cell_editable),
14835                          cell_area->x, cell_area->y,
14836                          cell_area->width, cell_area->height);
14837     }
14838
14839   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14840                                    (GdkEvent *)event);
14841
14842   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14843   g_signal_connect (cell_editable, "remove-widget",
14844                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14845 }
14846
14847 static void
14848 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14849                             gboolean     cancel_editing)
14850 {
14851   GtkTreeViewColumn *column;
14852   GtkCellRenderer *cell;
14853
14854   if (tree_view->priv->edited_column == NULL)
14855     return;
14856
14857   /*
14858    * This is very evil. We need to do this, because
14859    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14860    * later on. If gtk_tree_view_row_changed notices
14861    * tree_view->priv->edited_column != NULL, it'll call
14862    * gtk_tree_view_stop_editing again. Bad things will happen then.
14863    *
14864    * Please read that again if you intend to modify anything here.
14865    */
14866
14867   column = tree_view->priv->edited_column;
14868   tree_view->priv->edited_column = NULL;
14869
14870   cell = _gtk_tree_view_column_get_edited_cell (column);
14871   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14872
14873   if (!cancel_editing)
14874     gtk_cell_editable_editing_done (column->editable_widget);
14875
14876   tree_view->priv->edited_column = column;
14877
14878   gtk_cell_editable_remove_widget (column->editable_widget);
14879 }
14880
14881
14882 /**
14883  * gtk_tree_view_set_hover_selection:
14884  * @tree_view: a #GtkTreeView
14885  * @hover: %TRUE to enable hover selection mode
14886  *
14887  * Enables of disables the hover selection mode of @tree_view.
14888  * Hover selection makes the selected row follow the pointer.
14889  * Currently, this works only for the selection modes
14890  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14891  *
14892  * Since: 2.6
14893  **/
14894 void
14895 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14896                                    gboolean     hover)
14897 {
14898   hover = hover != FALSE;
14899
14900   if (hover != tree_view->priv->hover_selection)
14901     {
14902       tree_view->priv->hover_selection = hover;
14903
14904       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14905     }
14906 }
14907
14908 /**
14909  * gtk_tree_view_get_hover_selection:
14910  * @tree_view: a #GtkTreeView
14911  *
14912  * Returns whether hover selection mode is turned on for @tree_view.
14913  *
14914  * Return value: %TRUE if @tree_view is in hover selection mode
14915  *
14916  * Since: 2.6
14917  **/
14918 gboolean
14919 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14920 {
14921   return tree_view->priv->hover_selection;
14922 }
14923
14924 /**
14925  * gtk_tree_view_set_hover_expand:
14926  * @tree_view: a #GtkTreeView
14927  * @expand: %TRUE to enable hover selection mode
14928  *
14929  * Enables of disables the hover expansion mode of @tree_view.
14930  * Hover expansion makes rows expand or collapse if the pointer
14931  * moves over them.
14932  *
14933  * Since: 2.6
14934  **/
14935 void
14936 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14937                                 gboolean     expand)
14938 {
14939   expand = expand != FALSE;
14940
14941   if (expand != tree_view->priv->hover_expand)
14942     {
14943       tree_view->priv->hover_expand = expand;
14944
14945       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14946     }
14947 }
14948
14949 /**
14950  * gtk_tree_view_get_hover_expand:
14951  * @tree_view: a #GtkTreeView
14952  *
14953  * Returns whether hover expansion mode is turned on for @tree_view.
14954  *
14955  * Return value: %TRUE if @tree_view is in hover expansion mode
14956  *
14957  * Since: 2.6
14958  **/
14959 gboolean
14960 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14961 {
14962   return tree_view->priv->hover_expand;
14963 }
14964
14965 /**
14966  * gtk_tree_view_set_rubber_banding:
14967  * @tree_view: a #GtkTreeView
14968  * @enable: %TRUE to enable rubber banding
14969  *
14970  * Enables or disables rubber banding in @tree_view.  If the selection mode
14971  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14972  * multiple rows by dragging the mouse.
14973  *
14974  * Since: 2.10
14975  **/
14976 void
14977 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14978                                   gboolean     enable)
14979 {
14980   enable = enable != FALSE;
14981
14982   if (enable != tree_view->priv->rubber_banding_enable)
14983     {
14984       tree_view->priv->rubber_banding_enable = enable;
14985
14986       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14987     }
14988 }
14989
14990 /**
14991  * gtk_tree_view_get_rubber_banding:
14992  * @tree_view: a #GtkTreeView
14993  *
14994  * Returns whether rubber banding is turned on for @tree_view.  If the
14995  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14996  * user to select multiple rows by dragging the mouse.
14997  *
14998  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14999  *
15000  * Since: 2.10
15001  **/
15002 gboolean
15003 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
15004 {
15005   return tree_view->priv->rubber_banding_enable;
15006 }
15007
15008 /**
15009  * gtk_tree_view_is_rubber_banding_active:
15010  * @tree_view: a #GtkTreeView
15011  *
15012  * Returns whether a rubber banding operation is currently being done
15013  * in @tree_view.
15014  *
15015  * Return value: %TRUE if a rubber banding operation is currently being
15016  * done in @tree_view.
15017  *
15018  * Since: 2.12
15019  **/
15020 gboolean
15021 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
15022 {
15023   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15024
15025   if (tree_view->priv->rubber_banding_enable
15026       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15027     return TRUE;
15028
15029   return FALSE;
15030 }
15031
15032 /**
15033  * gtk_tree_view_get_row_separator_func:
15034  * @tree_view: a #GtkTreeView
15035  *
15036  * Returns the current row separator function.
15037  *
15038  * Return value: the current row separator function.
15039  *
15040  * Since: 2.6
15041  **/
15042 GtkTreeViewRowSeparatorFunc
15043 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15044 {
15045   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15046
15047   return tree_view->priv->row_separator_func;
15048 }
15049
15050 /**
15051  * gtk_tree_view_set_row_separator_func:
15052  * @tree_view: a #GtkTreeView
15053  * @func: a #GtkTreeViewRowSeparatorFunc
15054  * @data: (allow-none): user data to pass to @func, or %NULL
15055  * @destroy: (allow-none): destroy notifier for @data, or %NULL
15056  *
15057  * Sets the row separator function, which is used to determine
15058  * whether a row should be drawn as a separator. If the row separator
15059  * function is %NULL, no separators are drawn. This is the default value.
15060  *
15061  * Since: 2.6
15062  **/
15063 void
15064 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15065                                       GtkTreeViewRowSeparatorFunc  func,
15066                                       gpointer                     data,
15067                                       GDestroyNotify               destroy)
15068 {
15069   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15070
15071   if (tree_view->priv->row_separator_destroy)
15072     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15073
15074   tree_view->priv->row_separator_func = func;
15075   tree_view->priv->row_separator_data = data;
15076   tree_view->priv->row_separator_destroy = destroy;
15077
15078   /* Have the tree recalculate heights */
15079   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
15080   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
15081 }
15082
15083
15084 static void
15085 gtk_tree_view_grab_notify (GtkWidget *widget,
15086                            gboolean   was_grabbed)
15087 {
15088   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15089
15090   tree_view->priv->in_grab = !was_grabbed;
15091
15092   if (!was_grabbed)
15093     {
15094       tree_view->priv->pressed_button = -1;
15095
15096       if (tree_view->priv->rubber_band_status)
15097         gtk_tree_view_stop_rubber_band (tree_view);
15098     }
15099 }
15100
15101 static void
15102 gtk_tree_view_state_changed (GtkWidget      *widget,
15103                              GtkStateType    previous_state)
15104 {
15105   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15106
15107   if (GTK_WIDGET_REALIZED (widget))
15108     {
15109       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15110       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15111     }
15112
15113   gtk_widget_queue_draw (widget);
15114 }
15115
15116 /**
15117  * gtk_tree_view_get_grid_lines:
15118  * @tree_view: a #GtkTreeView
15119  *
15120  * Returns which grid lines are enabled in @tree_view.
15121  *
15122  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15123  * are enabled.
15124  *
15125  * Since: 2.10
15126  */
15127 GtkTreeViewGridLines
15128 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15129 {
15130   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15131
15132   return tree_view->priv->grid_lines;
15133 }
15134
15135 /**
15136  * gtk_tree_view_set_grid_lines:
15137  * @tree_view: a #GtkTreeView
15138  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15139  * enable.
15140  *
15141  * Sets which grid lines to draw in @tree_view.
15142  *
15143  * Since: 2.10
15144  */
15145 void
15146 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15147                               GtkTreeViewGridLines   grid_lines)
15148 {
15149   GtkTreeViewPrivate *priv;
15150   GtkWidget *widget;
15151   GtkTreeViewGridLines old_grid_lines;
15152
15153   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15154
15155   priv = tree_view->priv;
15156   widget = GTK_WIDGET (tree_view);
15157
15158   old_grid_lines = priv->grid_lines;
15159   priv->grid_lines = grid_lines;
15160
15161   if (GTK_WIDGET_REALIZED (widget))
15162     {
15163       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15164           priv->grid_line_gc)
15165         {
15166           g_object_unref (priv->grid_line_gc);
15167           priv->grid_line_gc = NULL;
15168         }
15169
15170       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15171           !priv->grid_line_gc)
15172         {
15173           gint line_width;
15174           gint8 *dash_list;
15175
15176           gtk_widget_style_get (widget,
15177                                 "grid-line-width", &line_width,
15178                                 "grid-line-pattern", (gchar *)&dash_list,
15179                                 NULL);
15180
15181           priv->grid_line_gc = gdk_gc_new (widget->window);
15182           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15183
15184           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15185                                       GDK_LINE_ON_OFF_DASH,
15186                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15187           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15188
15189           g_free (dash_list);
15190         }
15191     }
15192
15193   if (old_grid_lines != grid_lines)
15194     {
15195       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15196
15197       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15198     }
15199 }
15200
15201 /**
15202  * gtk_tree_view_get_enable_tree_lines:
15203  * @tree_view: a #GtkTreeView.
15204  *
15205  * Returns whether or not tree lines are drawn in @tree_view.
15206  *
15207  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15208  * otherwise.
15209  *
15210  * Since: 2.10
15211  */
15212 gboolean
15213 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15214 {
15215   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15216
15217   return tree_view->priv->tree_lines_enabled;
15218 }
15219
15220 /**
15221  * gtk_tree_view_set_enable_tree_lines:
15222  * @tree_view: a #GtkTreeView
15223  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15224  *
15225  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15226  * This does not have any visible effects for lists.
15227  *
15228  * Since: 2.10
15229  */
15230 void
15231 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15232                                      gboolean     enabled)
15233 {
15234   GtkTreeViewPrivate *priv;
15235   GtkWidget *widget;
15236   gboolean was_enabled;
15237
15238   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15239
15240   enabled = enabled != FALSE;
15241
15242   priv = tree_view->priv;
15243   widget = GTK_WIDGET (tree_view);
15244
15245   was_enabled = priv->tree_lines_enabled;
15246
15247   priv->tree_lines_enabled = enabled;
15248
15249   if (GTK_WIDGET_REALIZED (widget))
15250     {
15251       if (!enabled && priv->tree_line_gc)
15252         {
15253           g_object_unref (priv->tree_line_gc);
15254           priv->tree_line_gc = NULL;
15255         }
15256
15257       if (enabled && !priv->tree_line_gc)
15258         {
15259           gint line_width;
15260           gint8 *dash_list;
15261           gtk_widget_style_get (widget,
15262                                 "tree-line-width", &line_width,
15263                                 "tree-line-pattern", (gchar *)&dash_list,
15264                                 NULL);
15265
15266           priv->tree_line_gc = gdk_gc_new (widget->window);
15267           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15268
15269           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15270                                       GDK_LINE_ON_OFF_DASH,
15271                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15272           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15273
15274           g_free (dash_list);
15275         }
15276     }
15277
15278   if (was_enabled != enabled)
15279     {
15280       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15281
15282       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15283     }
15284 }
15285
15286
15287 /**
15288  * gtk_tree_view_set_show_expanders:
15289  * @tree_view: a #GtkTreeView
15290  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15291  *
15292  * Sets whether to draw and enable expanders and indent child rows in
15293  * @tree_view.  When disabled there will be no expanders visible in trees
15294  * and there will be no way to expand and collapse rows by default.  Also
15295  * note that hiding the expanders will disable the default indentation.  You
15296  * can set a custom indentation in this case using
15297  * gtk_tree_view_set_level_indentation().
15298  * This does not have any visible effects for lists.
15299  *
15300  * Since: 2.12
15301  */
15302 void
15303 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15304                                   gboolean     enabled)
15305 {
15306   gboolean was_enabled;
15307
15308   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15309
15310   enabled = enabled != FALSE;
15311   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15312
15313   if (enabled)
15314     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15315   else
15316     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15317
15318   if (enabled != was_enabled)
15319     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15320 }
15321
15322 /**
15323  * gtk_tree_view_get_show_expanders:
15324  * @tree_view: a #GtkTreeView.
15325  *
15326  * Returns whether or not expanders are drawn in @tree_view.
15327  *
15328  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15329  * otherwise.
15330  *
15331  * Since: 2.12
15332  */
15333 gboolean
15334 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15335 {
15336   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15337
15338   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15339 }
15340
15341 /**
15342  * gtk_tree_view_set_level_indentation:
15343  * @tree_view: a #GtkTreeView
15344  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15345  *
15346  * Sets the amount of extra indentation for child levels to use in @tree_view
15347  * in addition to the default indentation.  The value should be specified in
15348  * pixels, a value of 0 disables this feature and in this case only the default
15349  * indentation will be used.
15350  * This does not have any visible effects for lists.
15351  *
15352  * Since: 2.12
15353  */
15354 void
15355 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15356                                      gint         indentation)
15357 {
15358   tree_view->priv->level_indentation = indentation;
15359
15360   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15361 }
15362
15363 /**
15364  * gtk_tree_view_get_level_indentation:
15365  * @tree_view: a #GtkTreeView.
15366  *
15367  * Returns the amount, in pixels, of extra indentation for child levels
15368  * in @tree_view.
15369  *
15370  * Return value: the amount of extra indentation for child levels in
15371  * @tree_view.  A return value of 0 means that this feature is disabled.
15372  *
15373  * Since: 2.12
15374  */
15375 gint
15376 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15377 {
15378   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15379
15380   return tree_view->priv->level_indentation;
15381 }
15382
15383 /**
15384  * gtk_tree_view_set_tooltip_row:
15385  * @tree_view: a #GtkTreeView
15386  * @tooltip: a #GtkTooltip
15387  * @path: a #GtkTreePath
15388  *
15389  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15390  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15391  * See also gtk_tooltip_set_tip_area().
15392  *
15393  * Since: 2.12
15394  */
15395 void
15396 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15397                                GtkTooltip  *tooltip,
15398                                GtkTreePath *path)
15399 {
15400   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15401   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15402
15403   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15404 }
15405
15406 /**
15407  * gtk_tree_view_set_tooltip_cell:
15408  * @tree_view: a #GtkTreeView
15409  * @tooltip: a #GtkTooltip
15410  * @path: (allow-none): a #GtkTreePath or %NULL
15411  * @column: (allow-none): a #GtkTreeViewColumn or %NULL
15412  * @cell: (allow-none): a #GtkCellRenderer or %NULL
15413  *
15414  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15415  * in common.  For example if @path is %NULL and @column is set, the tip
15416  * area will be set to the full area covered by @column.  See also
15417  * gtk_tooltip_set_tip_area().
15418  *
15419  * Note that if @path is not specified and @cell is set and part of a column
15420  * containing the expander, the tooltip might not show and hide at the correct
15421  * position.  In such cases @path must be set to the current node under the
15422  * mouse cursor for this function to operate correctly.
15423  *
15424  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15425  *
15426  * Since: 2.12
15427  */
15428 void
15429 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15430                                 GtkTooltip        *tooltip,
15431                                 GtkTreePath       *path,
15432                                 GtkTreeViewColumn *column,
15433                                 GtkCellRenderer   *cell)
15434 {
15435   GdkRectangle rect;
15436
15437   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15438   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15439   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15440   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15441
15442   /* Determine x values. */
15443   if (column && cell)
15444     {
15445       GdkRectangle tmp;
15446       gint start, width;
15447
15448       /* We always pass in path here, whether it is NULL or not.
15449        * For cells in expander columns path must be specified so that
15450        * we can correctly account for the indentation.  This also means
15451        * that the tooltip is constrained vertically by the "Determine y
15452        * values" code below; this is not a real problem since cells actually
15453        * don't stretch vertically in constrast to columns.
15454        */
15455       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15456       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15457
15458       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15459                                                          tmp.x + start, 0,
15460                                                          &rect.x, NULL);
15461       rect.width = width;
15462     }
15463   else if (column)
15464     {
15465       GdkRectangle tmp;
15466
15467       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15468       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15469                                                          tmp.x, 0,
15470                                                          &rect.x, NULL);
15471       rect.width = tmp.width;
15472     }
15473   else
15474     {
15475       rect.x = 0;
15476       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15477     }
15478
15479   /* Determine y values. */
15480   if (path)
15481     {
15482       GdkRectangle tmp;
15483
15484       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15485       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15486                                                          0, tmp.y,
15487                                                          NULL, &rect.y);
15488       rect.height = tmp.height;
15489     }
15490   else
15491     {
15492       rect.y = 0;
15493       rect.height = tree_view->priv->vadjustment->page_size;
15494     }
15495
15496   gtk_tooltip_set_tip_area (tooltip, &rect);
15497 }
15498
15499 /**
15500  * gtk_tree_view_get_tooltip_context:
15501  * @tree_view: a #GtkTreeView
15502  * @x: the x coordinate (relative to widget coordinates)
15503  * @y: the y coordinate (relative to widget coordinates)
15504  * @keyboard_tip: whether this is a keyboard tooltip or not
15505  * @model: (allow-none): a pointer to receive a #GtkTreeModel or %NULL
15506  * @path: (allow-none): a pointer to receive a #GtkTreePath or %NULL
15507  * @iter: (allow-none): a pointer to receive a #GtkTreeIter or %NULL
15508  *
15509  * This function is supposed to be used in a #GtkWidget::query-tooltip
15510  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15511  * which are received in the signal handler, should be passed to this
15512  * function without modification.
15513  *
15514  * The return value indicates whether there is a tree view row at the given
15515  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15516  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15517  * @model, @path and @iter which have been provided will be set to point to
15518  * that row and the corresponding model.  @x and @y will always be converted
15519  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15520  *
15521  * Return value: whether or not the given tooltip context points to a row.
15522  *
15523  * Since: 2.12
15524  */
15525 gboolean
15526 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15527                                    gint          *x,
15528                                    gint          *y,
15529                                    gboolean       keyboard_tip,
15530                                    GtkTreeModel **model,
15531                                    GtkTreePath  **path,
15532                                    GtkTreeIter   *iter)
15533 {
15534   GtkTreePath *tmppath = NULL;
15535
15536   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15537   g_return_val_if_fail (x != NULL, FALSE);
15538   g_return_val_if_fail (y != NULL, FALSE);
15539
15540   if (keyboard_tip)
15541     {
15542       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15543
15544       if (!tmppath)
15545         return FALSE;
15546     }
15547   else
15548     {
15549       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15550                                                          x, y);
15551
15552       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15553                                           &tmppath, NULL, NULL, NULL))
15554         return FALSE;
15555     }
15556
15557   if (model)
15558     *model = gtk_tree_view_get_model (tree_view);
15559
15560   if (iter)
15561     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15562                              iter, tmppath);
15563
15564   if (path)
15565     *path = tmppath;
15566   else
15567     gtk_tree_path_free (tmppath);
15568
15569   return TRUE;
15570 }
15571
15572 static gboolean
15573 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15574                                     gint        x,
15575                                     gint        y,
15576                                     gboolean    keyboard_tip,
15577                                     GtkTooltip *tooltip,
15578                                     gpointer    data)
15579 {
15580   GValue value = { 0, };
15581   GValue transformed = { 0, };
15582   GtkTreeIter iter;
15583   GtkTreePath *path;
15584   GtkTreeModel *model;
15585   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15586
15587   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15588                                           &x, &y,
15589                                           keyboard_tip,
15590                                           &model, &path, &iter))
15591     return FALSE;
15592
15593   gtk_tree_model_get_value (model, &iter,
15594                             tree_view->priv->tooltip_column, &value);
15595
15596   g_value_init (&transformed, G_TYPE_STRING);
15597
15598   if (!g_value_transform (&value, &transformed))
15599     {
15600       g_value_unset (&value);
15601       gtk_tree_path_free (path);
15602
15603       return FALSE;
15604     }
15605
15606   g_value_unset (&value);
15607
15608   if (!g_value_get_string (&transformed))
15609     {
15610       g_value_unset (&transformed);
15611       gtk_tree_path_free (path);
15612
15613       return FALSE;
15614     }
15615
15616   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15617   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15618
15619   gtk_tree_path_free (path);
15620   g_value_unset (&transformed);
15621
15622   return TRUE;
15623 }
15624
15625 /**
15626  * gtk_tree_view_set_tooltip_column:
15627  * @tree_view: a #GtkTreeView
15628  * @column: an integer, which is a valid column number for @tree_view's model
15629  *
15630  * If you only plan to have simple (text-only) tooltips on full rows, you
15631  * can use this function to have #GtkTreeView handle these automatically
15632  * for you. @column should be set to the column in @tree_view's model
15633  * containing the tooltip texts, or -1 to disable this feature.
15634  *
15635  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15636  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15637  *
15638  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15639  * so &amp;, &lt;, etc have to be escaped in the text.
15640  *
15641  * Since: 2.12
15642  */
15643 void
15644 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15645                                   gint         column)
15646 {
15647   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15648
15649   if (column == tree_view->priv->tooltip_column)
15650     return;
15651
15652   if (column == -1)
15653     {
15654       g_signal_handlers_disconnect_by_func (tree_view,
15655                                             gtk_tree_view_set_tooltip_query_cb,
15656                                             NULL);
15657       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15658     }
15659   else
15660     {
15661       if (tree_view->priv->tooltip_column == -1)
15662         {
15663           g_signal_connect (tree_view, "query-tooltip",
15664                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15665           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15666         }
15667     }
15668
15669   tree_view->priv->tooltip_column = column;
15670   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15671 }
15672
15673 /**
15674  * gtk_tree_view_get_tooltip_column:
15675  * @tree_view: a #GtkTreeView
15676  *
15677  * Returns the column of @tree_view's model which is being used for
15678  * displaying tooltips on @tree_view's rows.
15679  *
15680  * Return value: the index of the tooltip column that is currently being
15681  * used, or -1 if this is disabled.
15682  *
15683  * Since: 2.12
15684  */
15685 gint
15686 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15687 {
15688   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15689
15690   return tree_view->priv->tooltip_column;
15691 }
15692
15693 #define __GTK_TREE_VIEW_C__
15694 #include "gtkaliasdef.c"