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_MAPPED (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_VISIBLE (column->button) &&
1715               !GTK_WIDGET_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_VISIBLE (child->widget))
1750         {
1751           if (!GTK_WIDGET_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_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   if (gtk_widget_get_can_focus (GTK_WIDGET (tree_view)) && !GTK_WIDGET_HAS_FOCUS (tree_view))
2500     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2501   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2502 }
2503
2504 static inline gboolean
2505 row_is_separator (GtkTreeView *tree_view,
2506                   GtkTreeIter *iter,
2507                   GtkTreePath *path)
2508 {
2509   gboolean is_separator = FALSE;
2510
2511   if (tree_view->priv->row_separator_func)
2512     {
2513       GtkTreeIter tmpiter;
2514
2515       if (iter)
2516         tmpiter = *iter;
2517       else
2518         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2519
2520       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2521                                                           &tmpiter,
2522                                                           tree_view->priv->row_separator_data);
2523     }
2524
2525   return is_separator;
2526 }
2527
2528 static gboolean
2529 gtk_tree_view_button_press (GtkWidget      *widget,
2530                             GdkEventButton *event)
2531 {
2532   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2533   GList *list;
2534   GtkTreeViewColumn *column = NULL;
2535   gint i;
2536   GdkRectangle background_area;
2537   GdkRectangle cell_area;
2538   gint vertical_separator;
2539   gint horizontal_separator;
2540   gboolean path_is_selectable;
2541   gboolean rtl;
2542
2543   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2544   gtk_tree_view_stop_editing (tree_view, FALSE);
2545   gtk_widget_style_get (widget,
2546                         "vertical-separator", &vertical_separator,
2547                         "horizontal-separator", &horizontal_separator,
2548                         NULL);
2549
2550
2551   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2552    * we're done handling the button press.
2553    */
2554
2555   if (event->window == tree_view->priv->bin_window)
2556     {
2557       GtkRBNode *node;
2558       GtkRBTree *tree;
2559       GtkTreePath *path;
2560       gchar *path_string;
2561       gint depth;
2562       gint new_y;
2563       gint y_offset;
2564       gint dval;
2565       gint pre_val, aft_val;
2566       GtkTreeViewColumn *column = NULL;
2567       GtkCellRenderer *focus_cell = NULL;
2568       gint column_handled_click = FALSE;
2569       gboolean row_double_click = FALSE;
2570       gboolean rtl;
2571       gboolean node_selected;
2572
2573       /* Empty tree? */
2574       if (tree_view->priv->tree == NULL)
2575         {
2576           grab_focus_and_unset_draw_keyfocus (tree_view);
2577           return TRUE;
2578         }
2579
2580       /* are we in an arrow? */
2581       if (tree_view->priv->prelight_node &&
2582           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2583           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2584         {
2585           if (event->button == 1)
2586             {
2587               gtk_grab_add (widget);
2588               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2589               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2590               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2591                                         tree_view->priv->prelight_tree,
2592                                         tree_view->priv->prelight_node,
2593                                         event->x,
2594                                         event->y);
2595             }
2596
2597           grab_focus_and_unset_draw_keyfocus (tree_view);
2598           return TRUE;
2599         }
2600
2601       /* find the node that was clicked */
2602       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2603       if (new_y < 0)
2604         new_y = 0;
2605       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2606
2607       if (node == NULL)
2608         {
2609           /* We clicked in dead space */
2610           grab_focus_and_unset_draw_keyfocus (tree_view);
2611           return TRUE;
2612         }
2613
2614       /* Get the path and the node */
2615       path = _gtk_tree_view_find_path (tree_view, tree, node);
2616       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2617
2618       if (!path_is_selectable)
2619         {
2620           gtk_tree_path_free (path);
2621           grab_focus_and_unset_draw_keyfocus (tree_view);
2622           return TRUE;
2623         }
2624
2625       depth = gtk_tree_path_get_depth (path);
2626       background_area.y = y_offset + event->y;
2627       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2628       background_area.x = 0;
2629
2630
2631       /* Let the column have a chance at selecting it. */
2632       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2633       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2634            list; list = (rtl ? list->prev : list->next))
2635         {
2636           GtkTreeViewColumn *candidate = list->data;
2637
2638           if (!candidate->visible)
2639             continue;
2640
2641           background_area.width = candidate->width;
2642           if ((background_area.x > (gint) event->x) ||
2643               (background_area.x + background_area.width <= (gint) event->x))
2644             {
2645               background_area.x += background_area.width;
2646               continue;
2647             }
2648
2649           /* we found the focus column */
2650           column = candidate;
2651           cell_area = background_area;
2652           cell_area.width -= horizontal_separator;
2653           cell_area.height -= vertical_separator;
2654           cell_area.x += horizontal_separator/2;
2655           cell_area.y += vertical_separator/2;
2656           if (gtk_tree_view_is_expander_column (tree_view, column))
2657             {
2658               if (!rtl)
2659                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2660               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2661
2662               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2663                 {
2664                   if (!rtl)
2665                     cell_area.x += depth * tree_view->priv->expander_size;
2666                   cell_area.width -= depth * tree_view->priv->expander_size;
2667                 }
2668             }
2669           break;
2670         }
2671
2672       if (column == NULL)
2673         {
2674           gtk_tree_path_free (path);
2675           grab_focus_and_unset_draw_keyfocus (tree_view);
2676           return FALSE;
2677         }
2678
2679       tree_view->priv->focus_column = column;
2680
2681       /* decide if we edit */
2682       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2683           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2684         {
2685           GtkTreePath *anchor;
2686           GtkTreeIter iter;
2687
2688           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2689           gtk_tree_view_column_cell_set_cell_data (column,
2690                                                    tree_view->priv->model,
2691                                                    &iter,
2692                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2693                                                    node->children?TRUE:FALSE);
2694
2695           if (tree_view->priv->anchor)
2696             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2697           else
2698             anchor = NULL;
2699
2700           if ((anchor && !gtk_tree_path_compare (anchor, path))
2701               || !_gtk_tree_view_column_has_editable_cell (column))
2702             {
2703               GtkCellEditable *cell_editable = NULL;
2704
2705               /* FIXME: get the right flags */
2706               guint flags = 0;
2707
2708               path_string = gtk_tree_path_to_string (path);
2709
2710               if (_gtk_tree_view_column_cell_event (column,
2711                                                     &cell_editable,
2712                                                     (GdkEvent *)event,
2713                                                     path_string,
2714                                                     &background_area,
2715                                                     &cell_area, flags))
2716                 {
2717                   if (cell_editable != NULL)
2718                     {
2719                       gint left, right;
2720                       GdkRectangle area;
2721
2722                       area = cell_area;
2723                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2724
2725                       area.x += left;
2726                       area.width -= right + left;
2727
2728                       gtk_tree_view_real_start_editing (tree_view,
2729                                                         column,
2730                                                         path,
2731                                                         cell_editable,
2732                                                         &area,
2733                                                         (GdkEvent *)event,
2734                                                         flags);
2735                       g_free (path_string);
2736                       gtk_tree_path_free (path);
2737                       gtk_tree_path_free (anchor);
2738                       return TRUE;
2739                     }
2740                   column_handled_click = TRUE;
2741                 }
2742               g_free (path_string);
2743             }
2744           if (anchor)
2745             gtk_tree_path_free (anchor);
2746         }
2747
2748       /* select */
2749       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2750       pre_val = tree_view->priv->vadjustment->value;
2751
2752       /* we only handle selection modifications on the first button press
2753        */
2754       if (event->type == GDK_BUTTON_PRESS)
2755         {
2756           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2757             tree_view->priv->ctrl_pressed = TRUE;
2758           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2759             tree_view->priv->shift_pressed = TRUE;
2760
2761           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2762           if (focus_cell)
2763             gtk_tree_view_column_focus_cell (column, focus_cell);
2764
2765           if (event->state & GDK_CONTROL_MASK)
2766             {
2767               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2768               gtk_tree_view_real_toggle_cursor_row (tree_view);
2769             }
2770           else if (event->state & GDK_SHIFT_MASK)
2771             {
2772               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2773               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2774             }
2775           else
2776             {
2777               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2778             }
2779
2780           tree_view->priv->ctrl_pressed = FALSE;
2781           tree_view->priv->shift_pressed = FALSE;
2782         }
2783
2784       /* the treeview may have been scrolled because of _set_cursor,
2785        * correct here
2786        */
2787
2788       aft_val = tree_view->priv->vadjustment->value;
2789       dval = pre_val - aft_val;
2790
2791       cell_area.y += dval;
2792       background_area.y += dval;
2793
2794       /* Save press to possibly begin a drag
2795        */
2796       if (!column_handled_click &&
2797           !tree_view->priv->in_grab &&
2798           tree_view->priv->pressed_button < 0)
2799         {
2800           tree_view->priv->pressed_button = event->button;
2801           tree_view->priv->press_start_x = event->x;
2802           tree_view->priv->press_start_y = event->y;
2803
2804           if (tree_view->priv->rubber_banding_enable
2805               && !node_selected
2806               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2807             {
2808               tree_view->priv->press_start_y += tree_view->priv->dy;
2809               tree_view->priv->rubber_band_x = event->x;
2810               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2811               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2812
2813               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2814                 tree_view->priv->rubber_band_ctrl = TRUE;
2815               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2816                 tree_view->priv->rubber_band_shift = TRUE;
2817             }
2818         }
2819
2820       /* Test if a double click happened on the same row. */
2821       if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
2822         {
2823           int double_click_time, double_click_distance;
2824
2825           g_object_get (gtk_settings_get_default (),
2826                         "gtk-double-click-time", &double_click_time,
2827                         "gtk-double-click-distance", &double_click_distance,
2828                         NULL);
2829
2830           /* Same conditions as _gdk_event_button_generate */
2831           if (tree_view->priv->last_button_x != -1 &&
2832               (event->time < tree_view->priv->last_button_time + double_click_time) &&
2833               (ABS (event->x - tree_view->priv->last_button_x) <= double_click_distance) &&
2834               (ABS (event->y - tree_view->priv->last_button_y) <= double_click_distance))
2835             {
2836               /* We do no longer compare paths of this row and the
2837                * row clicked previously.  We use the double click
2838                * distance to decide whether this is a valid click,
2839                * allowing the mouse to slightly move over another row.
2840                */
2841               row_double_click = TRUE;
2842
2843               tree_view->priv->last_button_time = 0;
2844               tree_view->priv->last_button_x = -1;
2845               tree_view->priv->last_button_y = -1;
2846             }
2847           else
2848             {
2849               tree_view->priv->last_button_time = event->time;
2850               tree_view->priv->last_button_x = event->x;
2851               tree_view->priv->last_button_y = event->y;
2852             }
2853         }
2854
2855       if (row_double_click)
2856         {
2857           gtk_grab_remove (widget);
2858           gtk_tree_view_row_activated (tree_view, path, column);
2859
2860           if (tree_view->priv->pressed_button == event->button)
2861             tree_view->priv->pressed_button = -1;
2862         }
2863
2864       gtk_tree_path_free (path);
2865
2866       /* If we activated the row through a double click we don't want to grab
2867        * focus back, as moving focus to another widget is pretty common.
2868        */
2869       if (!row_double_click)
2870         grab_focus_and_unset_draw_keyfocus (tree_view);
2871
2872       return TRUE;
2873     }
2874
2875   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2876    */
2877   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2878     {
2879       column = list->data;
2880       if (event->window == column->window &&
2881           column->resizable &&
2882           column->window)
2883         {
2884           gpointer drag_data;
2885
2886           if (event->type == GDK_2BUTTON_PRESS &&
2887               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2888             {
2889               column->use_resized_width = FALSE;
2890               _gtk_tree_view_column_autosize (tree_view, column);
2891               return TRUE;
2892             }
2893
2894           if (gdk_pointer_grab (column->window, FALSE,
2895                                 GDK_POINTER_MOTION_HINT_MASK |
2896                                 GDK_BUTTON1_MOTION_MASK |
2897                                 GDK_BUTTON_RELEASE_MASK,
2898                                 NULL, NULL, event->time))
2899             return FALSE;
2900
2901           gtk_grab_add (widget);
2902           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2903           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2904
2905           /* block attached dnd signal handler */
2906           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2907           if (drag_data)
2908             g_signal_handlers_block_matched (widget,
2909                                              G_SIGNAL_MATCH_DATA,
2910                                              0, 0, NULL, NULL,
2911                                              drag_data);
2912
2913           tree_view->priv->drag_pos = i;
2914           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2915
2916           if (!GTK_WIDGET_HAS_FOCUS (widget))
2917             gtk_widget_grab_focus (widget);
2918
2919           return TRUE;
2920         }
2921     }
2922   return FALSE;
2923 }
2924
2925 /* GtkWidget::button_release_event helper */
2926 static gboolean
2927 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2928                                           GdkEventButton *event)
2929 {
2930   GtkTreeView *tree_view;
2931   GList *l;
2932   gboolean rtl;
2933
2934   tree_view = GTK_TREE_VIEW (widget);
2935
2936   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2937   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2938   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2939
2940   /* Move the button back */
2941   g_object_ref (tree_view->priv->drag_column->button);
2942   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2943   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2944   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2945   g_object_unref (tree_view->priv->drag_column->button);
2946   gtk_widget_queue_resize (widget);
2947   if (tree_view->priv->drag_column->resizable)
2948     {
2949       gdk_window_raise (tree_view->priv->drag_column->window);
2950       gdk_window_show (tree_view->priv->drag_column->window);
2951     }
2952   else
2953     gdk_window_hide (tree_view->priv->drag_column->window);
2954
2955   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2956
2957   if (rtl)
2958     {
2959       if (tree_view->priv->cur_reorder &&
2960           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2961         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2962                                          tree_view->priv->cur_reorder->right_column);
2963     }
2964   else
2965     {
2966       if (tree_view->priv->cur_reorder &&
2967           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2968         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2969                                          tree_view->priv->cur_reorder->left_column);
2970     }
2971   tree_view->priv->drag_column = NULL;
2972   gdk_window_hide (tree_view->priv->drag_window);
2973
2974   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2975     g_slice_free (GtkTreeViewColumnReorder, l->data);
2976   g_list_free (tree_view->priv->column_drag_info);
2977   tree_view->priv->column_drag_info = NULL;
2978   tree_view->priv->cur_reorder = NULL;
2979
2980   if (tree_view->priv->drag_highlight_window)
2981     gdk_window_hide (tree_view->priv->drag_highlight_window);
2982
2983   /* Reset our flags */
2984   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2985   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2986
2987   return TRUE;
2988 }
2989
2990 /* GtkWidget::button_release_event helper */
2991 static gboolean
2992 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2993                                             GdkEventButton *event)
2994 {
2995   GtkTreeView *tree_view;
2996   gpointer drag_data;
2997
2998   tree_view = GTK_TREE_VIEW (widget);
2999
3000   tree_view->priv->drag_pos = -1;
3001
3002   /* unblock attached dnd signal handler */
3003   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
3004   if (drag_data)
3005     g_signal_handlers_unblock_matched (widget,
3006                                        G_SIGNAL_MATCH_DATA,
3007                                        0, 0, NULL, NULL,
3008                                        drag_data);
3009
3010   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
3011   gtk_grab_remove (widget);
3012   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
3013                               event->time);
3014   return TRUE;
3015 }
3016
3017 static gboolean
3018 gtk_tree_view_button_release (GtkWidget      *widget,
3019                               GdkEventButton *event)
3020 {
3021   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3022
3023   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3024     return gtk_tree_view_button_release_drag_column (widget, event);
3025
3026   if (tree_view->priv->rubber_band_status)
3027     gtk_tree_view_stop_rubber_band (tree_view);
3028
3029   if (tree_view->priv->pressed_button == event->button)
3030     tree_view->priv->pressed_button = -1;
3031
3032   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3033     return gtk_tree_view_button_release_column_resize (widget, event);
3034
3035   if (tree_view->priv->button_pressed_node == NULL)
3036     return FALSE;
3037
3038   if (event->button == 1)
3039     {
3040       gtk_grab_remove (widget);
3041       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3042           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3043         {
3044           GtkTreePath *path = NULL;
3045
3046           path = _gtk_tree_view_find_path (tree_view,
3047                                            tree_view->priv->button_pressed_tree,
3048                                            tree_view->priv->button_pressed_node);
3049           /* Actually activate the node */
3050           if (tree_view->priv->button_pressed_node->children == NULL)
3051             gtk_tree_view_real_expand_row (tree_view, path,
3052                                            tree_view->priv->button_pressed_tree,
3053                                            tree_view->priv->button_pressed_node,
3054                                            FALSE, TRUE);
3055           else
3056             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3057                                              tree_view->priv->button_pressed_tree,
3058                                              tree_view->priv->button_pressed_node, TRUE);
3059           gtk_tree_path_free (path);
3060         }
3061
3062       tree_view->priv->button_pressed_tree = NULL;
3063       tree_view->priv->button_pressed_node = NULL;
3064     }
3065
3066   return TRUE;
3067 }
3068
3069 static gboolean
3070 gtk_tree_view_grab_broken (GtkWidget          *widget,
3071                            GdkEventGrabBroken *event)
3072 {
3073   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3074
3075   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3076     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3077
3078   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3079     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3080
3081   return TRUE;
3082 }
3083
3084 #if 0
3085 static gboolean
3086 gtk_tree_view_configure (GtkWidget *widget,
3087                          GdkEventConfigure *event)
3088 {
3089   GtkTreeView *tree_view;
3090
3091   tree_view = GTK_TREE_VIEW (widget);
3092   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3093
3094   return FALSE;
3095 }
3096 #endif
3097
3098 /* GtkWidget::motion_event function set.
3099  */
3100
3101 static gboolean
3102 coords_are_over_arrow (GtkTreeView *tree_view,
3103                        GtkRBTree   *tree,
3104                        GtkRBNode   *node,
3105                        /* these are in bin window coords */
3106                        gint         x,
3107                        gint         y)
3108 {
3109   GdkRectangle arrow;
3110   gint x2;
3111
3112   if (!GTK_WIDGET_REALIZED (tree_view))
3113     return FALSE;
3114
3115   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3116     return FALSE;
3117
3118   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3119
3120   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3121
3122   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3123
3124   arrow.width = x2 - arrow.x;
3125
3126   return (x >= arrow.x &&
3127           x < (arrow.x + arrow.width) &&
3128           y >= arrow.y &&
3129           y < (arrow.y + arrow.height));
3130 }
3131
3132 static gboolean
3133 auto_expand_timeout (gpointer data)
3134 {
3135   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3136   GtkTreePath *path;
3137
3138   if (tree_view->priv->prelight_node)
3139     {
3140       path = _gtk_tree_view_find_path (tree_view,
3141                                        tree_view->priv->prelight_tree,
3142                                        tree_view->priv->prelight_node);
3143
3144       if (tree_view->priv->prelight_node->children)
3145         gtk_tree_view_collapse_row (tree_view, path);
3146       else
3147         gtk_tree_view_expand_row (tree_view, path, FALSE);
3148
3149       gtk_tree_path_free (path);
3150     }
3151
3152   tree_view->priv->auto_expand_timeout = 0;
3153
3154   return FALSE;
3155 }
3156
3157 static void
3158 remove_auto_expand_timeout (GtkTreeView *tree_view)
3159 {
3160   if (tree_view->priv->auto_expand_timeout != 0)
3161     {
3162       g_source_remove (tree_view->priv->auto_expand_timeout);
3163       tree_view->priv->auto_expand_timeout = 0;
3164     }
3165 }
3166
3167 static void
3168 do_prelight (GtkTreeView *tree_view,
3169              GtkRBTree   *tree,
3170              GtkRBNode   *node,
3171              /* these are in bin_window coords */
3172              gint         x,
3173              gint         y)
3174 {
3175   if (tree_view->priv->prelight_tree == tree &&
3176       tree_view->priv->prelight_node == node)
3177     {
3178       /*  We are still on the same node,
3179           but we might need to take care of the arrow  */
3180
3181       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3182         {
3183           gboolean over_arrow;
3184           gboolean flag_set;
3185
3186           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3187           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3188                                              GTK_TREE_VIEW_ARROW_PRELIT);
3189
3190           if (over_arrow != flag_set)
3191             {
3192               if (over_arrow)
3193                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3194                                         GTK_TREE_VIEW_ARROW_PRELIT);
3195               else
3196                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3197                                           GTK_TREE_VIEW_ARROW_PRELIT);
3198
3199               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3200             }
3201         }
3202
3203       return;
3204     }
3205
3206   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3207     {
3208       /*  Unprelight the old node and arrow  */
3209
3210       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3211                              GTK_RBNODE_IS_PRELIT);
3212
3213       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3214           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3215         {
3216           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3217
3218           gtk_tree_view_draw_arrow (tree_view,
3219                                     tree_view->priv->prelight_tree,
3220                                     tree_view->priv->prelight_node,
3221                                     x,
3222                                     y);
3223         }
3224
3225       _gtk_tree_view_queue_draw_node (tree_view,
3226                                       tree_view->priv->prelight_tree,
3227                                       tree_view->priv->prelight_node,
3228                                       NULL);
3229     }
3230
3231
3232   if (tree_view->priv->hover_expand)
3233     remove_auto_expand_timeout (tree_view);
3234
3235   /*  Set the new prelight values  */
3236   tree_view->priv->prelight_node = node;
3237   tree_view->priv->prelight_tree = tree;
3238
3239   if (!node || !tree)
3240     return;
3241
3242   /*  Prelight the new node and arrow  */
3243
3244   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3245       && coords_are_over_arrow (tree_view, tree, node, x, y))
3246     {
3247       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3248
3249       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3250     }
3251
3252   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3253
3254   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3255
3256   if (tree_view->priv->hover_expand)
3257     {
3258       tree_view->priv->auto_expand_timeout =
3259         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3260     }
3261 }
3262
3263 static void
3264 prelight_or_select (GtkTreeView *tree_view,
3265                     GtkRBTree   *tree,
3266                     GtkRBNode   *node,
3267                     /* these are in bin_window coords */
3268                     gint         x,
3269                     gint         y)
3270 {
3271   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3272
3273   if (tree_view->priv->hover_selection &&
3274       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3275       !(tree_view->priv->edited_column &&
3276         tree_view->priv->edited_column->editable_widget))
3277     {
3278       if (node)
3279         {
3280           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3281             {
3282               GtkTreePath *path;
3283
3284               path = _gtk_tree_view_find_path (tree_view, tree, node);
3285               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3286               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3287                 {
3288                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3289                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3290                 }
3291               gtk_tree_path_free (path);
3292             }
3293         }
3294
3295       else if (mode == GTK_SELECTION_SINGLE)
3296         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3297     }
3298
3299     do_prelight (tree_view, tree, node, x, y);
3300 }
3301
3302 static void
3303 ensure_unprelighted (GtkTreeView *tree_view)
3304 {
3305   do_prelight (tree_view,
3306                NULL, NULL,
3307                -1000, -1000); /* coords not possibly over an arrow */
3308
3309   g_assert (tree_view->priv->prelight_node == NULL);
3310 }
3311
3312 static void
3313 update_prelight (GtkTreeView *tree_view,
3314                  gint         x,
3315                  gint         y)
3316 {
3317   int new_y;
3318   GtkRBTree *tree;
3319   GtkRBNode *node;
3320
3321   if (x == -10000)
3322     {
3323       ensure_unprelighted (tree_view);
3324       return;
3325     }
3326
3327   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
3328   if (new_y < 0)
3329     new_y = 0;
3330
3331   _gtk_rbtree_find_offset (tree_view->priv->tree,
3332                            new_y, &tree, &node);
3333
3334   if (node)
3335     prelight_or_select (tree_view, tree, node, x, y);
3336 }
3337
3338
3339
3340
3341 /* Our motion arrow is either a box (in the case of the original spot)
3342  * or an arrow.  It is expander_size wide.
3343  */
3344 /*
3345  * 11111111111111
3346  * 01111111111110
3347  * 00111111111100
3348  * 00011111111000
3349  * 00001111110000
3350  * 00000111100000
3351  * 00000111100000
3352  * 00000111100000
3353  * ~ ~ ~ ~ ~ ~ ~
3354  * 00000111100000
3355  * 00000111100000
3356  * 00000111100000
3357  * 00001111110000
3358  * 00011111111000
3359  * 00111111111100
3360  * 01111111111110
3361  * 11111111111111
3362  */
3363
3364 static void
3365 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3366 {
3367   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3368   GtkWidget *widget = GTK_WIDGET (tree_view);
3369   GdkBitmap *mask = NULL;
3370   gint x;
3371   gint y;
3372   gint width;
3373   gint height;
3374   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3375   GdkWindowAttr attributes;
3376   guint attributes_mask;
3377
3378   if (!reorder ||
3379       reorder->left_column == tree_view->priv->drag_column ||
3380       reorder->right_column == tree_view->priv->drag_column)
3381     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3382   else if (reorder->left_column || reorder->right_column)
3383     {
3384       GdkRectangle visible_rect;
3385       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3386       if (reorder->left_column)
3387         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3388       else
3389         x = reorder->right_column->button->allocation.x;
3390
3391       if (x < visible_rect.x)
3392         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3393       else if (x > visible_rect.x + visible_rect.width)
3394         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3395       else
3396         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3397     }
3398
3399   /* We want to draw the rectangle over the initial location. */
3400   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3401     {
3402       GdkGC *gc;
3403       GdkColor col;
3404
3405       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3406         {
3407           if (tree_view->priv->drag_highlight_window)
3408             {
3409               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3410                                         NULL);
3411               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3412             }
3413
3414           attributes.window_type = GDK_WINDOW_CHILD;
3415           attributes.wclass = GDK_INPUT_OUTPUT;
3416           attributes.x = tree_view->priv->drag_column_x;
3417           attributes.y = 0;
3418           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3419           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3420           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3421           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3422           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3423           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3424           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3425           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3426
3427           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3428           gc = gdk_gc_new (mask);
3429           col.pixel = 1;
3430           gdk_gc_set_foreground (gc, &col);
3431           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3432           col.pixel = 0;
3433           gdk_gc_set_foreground(gc, &col);
3434           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3435           g_object_unref (gc);
3436
3437           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3438                                          mask, 0, 0);
3439           if (mask) g_object_unref (mask);
3440           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3441         }
3442     }
3443   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3444     {
3445       gint i, j = 1;
3446       GdkGC *gc;
3447       GdkColor col;
3448
3449       width = tree_view->priv->expander_size;
3450
3451       /* Get x, y, width, height of arrow */
3452       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3453       if (reorder->left_column)
3454         {
3455           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3456           height = reorder->left_column->button->allocation.height;
3457         }
3458       else
3459         {
3460           x += reorder->right_column->button->allocation.x - width/2;
3461           height = reorder->right_column->button->allocation.height;
3462         }
3463       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3464       height += tree_view->priv->expander_size;
3465
3466       /* Create the new window */
3467       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3468         {
3469           if (tree_view->priv->drag_highlight_window)
3470             {
3471               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3472                                         NULL);
3473               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3474             }
3475
3476           attributes.window_type = GDK_WINDOW_TEMP;
3477           attributes.wclass = GDK_INPUT_OUTPUT;
3478           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3479           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3480           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3481           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3482           attributes.x = x;
3483           attributes.y = y;
3484           attributes.width = width;
3485           attributes.height = height;
3486           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3487                                                                    &attributes, attributes_mask);
3488           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3489
3490           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3491           gc = gdk_gc_new (mask);
3492           col.pixel = 1;
3493           gdk_gc_set_foreground (gc, &col);
3494           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3495
3496           /* Draw the 2 arrows as per above */
3497           col.pixel = 0;
3498           gdk_gc_set_foreground (gc, &col);
3499           for (i = 0; i < width; i ++)
3500             {
3501               if (i == (width/2 - 1))
3502                 continue;
3503               gdk_draw_line (mask, gc, i, j, i, height - j);
3504               if (i < (width/2 - 1))
3505                 j++;
3506               else
3507                 j--;
3508             }
3509           g_object_unref (gc);
3510           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3511                                          mask, 0, 0);
3512           if (mask) g_object_unref (mask);
3513         }
3514
3515       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3516       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3517     }
3518   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3519            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3520     {
3521       gint i, j = 1;
3522       GdkGC *gc;
3523       GdkColor col;
3524
3525       width = tree_view->priv->expander_size;
3526
3527       /* Get x, y, width, height of arrow */
3528       width = width/2; /* remember, the arrow only takes half the available width */
3529       gdk_window_get_origin (widget->window, &x, &y);
3530       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3531         x += widget->allocation.width - width;
3532
3533       if (reorder->left_column)
3534         height = reorder->left_column->button->allocation.height;
3535       else
3536         height = reorder->right_column->button->allocation.height;
3537
3538       y -= tree_view->priv->expander_size;
3539       height += 2*tree_view->priv->expander_size;
3540
3541       /* Create the new window */
3542       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3543           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3544         {
3545           if (tree_view->priv->drag_highlight_window)
3546             {
3547               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3548                                         NULL);
3549               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3550             }
3551
3552           attributes.window_type = GDK_WINDOW_TEMP;
3553           attributes.wclass = GDK_INPUT_OUTPUT;
3554           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3555           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3556           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3557           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3558           attributes.x = x;
3559           attributes.y = y;
3560           attributes.width = width;
3561           attributes.height = height;
3562           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3563           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3564
3565           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3566           gc = gdk_gc_new (mask);
3567           col.pixel = 1;
3568           gdk_gc_set_foreground (gc, &col);
3569           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3570
3571           /* Draw the 2 arrows as per above */
3572           col.pixel = 0;
3573           gdk_gc_set_foreground (gc, &col);
3574           j = tree_view->priv->expander_size;
3575           for (i = 0; i < width; i ++)
3576             {
3577               gint k;
3578               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3579                 k = width - i - 1;
3580               else
3581                 k = i;
3582               gdk_draw_line (mask, gc, k, j, k, height - j);
3583               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3584               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3585               j--;
3586             }
3587           g_object_unref (gc);
3588           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3589                                          mask, 0, 0);
3590           if (mask) g_object_unref (mask);
3591         }
3592
3593       tree_view->priv->drag_column_window_state = arrow_type;
3594       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3595    }
3596   else
3597     {
3598       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3599       gdk_window_hide (tree_view->priv->drag_highlight_window);
3600       return;
3601     }
3602
3603   gdk_window_show (tree_view->priv->drag_highlight_window);
3604   gdk_window_raise (tree_view->priv->drag_highlight_window);
3605 }
3606
3607 static gboolean
3608 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3609                                     GdkEventMotion *event)
3610 {
3611   gint x;
3612   gint new_width;
3613   GtkTreeViewColumn *column;
3614   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3615
3616   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3617
3618   if (event->is_hint || event->window != widget->window)
3619     gtk_widget_get_pointer (widget, &x, NULL);
3620   else
3621     x = event->x;
3622
3623   if (tree_view->priv->hadjustment)
3624     x += tree_view->priv->hadjustment->value;
3625
3626   new_width = gtk_tree_view_new_column_width (tree_view,
3627                                               tree_view->priv->drag_pos, &x);
3628   if (x != tree_view->priv->x_drag &&
3629       (new_width != column->fixed_width))
3630     {
3631       column->use_resized_width = TRUE;
3632       column->resized_width = new_width;
3633       if (column->expand)
3634         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3635       gtk_widget_queue_resize (widget);
3636     }
3637
3638   return FALSE;
3639 }
3640
3641
3642 static void
3643 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3644 {
3645   GtkTreeViewColumnReorder *reorder = NULL;
3646   GList *list;
3647   gint mouse_x;
3648
3649   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3650   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3651     {
3652       reorder = (GtkTreeViewColumnReorder *) list->data;
3653       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3654         break;
3655       reorder = NULL;
3656     }
3657
3658   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3659       return;*/
3660
3661   tree_view->priv->cur_reorder = reorder;
3662   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3663 }
3664
3665 static void
3666 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3667 {
3668   GdkRectangle visible_rect;
3669   gint y;
3670   gint offset;
3671   gfloat value;
3672
3673   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3674   y += tree_view->priv->dy;
3675
3676   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3677
3678   /* see if we are near the edge. */
3679   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3680   if (offset > 0)
3681     {
3682       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3683       if (offset < 0)
3684         return;
3685     }
3686
3687   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3688                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3689   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3690 }
3691
3692 static gboolean
3693 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3694 {
3695   GdkRectangle visible_rect;
3696   gint x;
3697   gint offset;
3698   gfloat value;
3699
3700   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3701
3702   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3703
3704   /* See if we are near the edge. */
3705   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3706   if (offset > 0)
3707     {
3708       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3709       if (offset < 0)
3710         return TRUE;
3711     }
3712   offset = offset/3;
3713
3714   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3715                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3716   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3717
3718   return TRUE;
3719
3720 }
3721
3722 static gboolean
3723 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3724                                   GdkEventMotion *event)
3725 {
3726   GtkTreeView *tree_view = (GtkTreeView *) widget;
3727   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3728   gint x, y;
3729
3730   /* Sanity Check */
3731   if ((column == NULL) ||
3732       (event->window != tree_view->priv->drag_window))
3733     return FALSE;
3734
3735   /* Handle moving the header */
3736   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3737   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3738              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3739   gdk_window_move (tree_view->priv->drag_window, x, y);
3740
3741   /* autoscroll, if needed */
3742   gtk_tree_view_horizontal_autoscroll (tree_view);
3743   /* Update the current reorder position and arrow; */
3744   gtk_tree_view_update_current_reorder (tree_view);
3745
3746   return TRUE;
3747 }
3748
3749 static void
3750 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3751 {
3752   remove_scroll_timeout (tree_view);
3753   gtk_grab_remove (GTK_WIDGET (tree_view));
3754
3755   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3756     {
3757       GtkTreePath *tmp_path;
3758
3759       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3760
3761       /* The anchor path should be set to the start path */
3762       tmp_path = _gtk_tree_view_find_path (tree_view,
3763                                            tree_view->priv->rubber_band_start_tree,
3764                                            tree_view->priv->rubber_band_start_node);
3765
3766       if (tree_view->priv->anchor)
3767         gtk_tree_row_reference_free (tree_view->priv->anchor);
3768
3769       tree_view->priv->anchor =
3770         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3771                                           tree_view->priv->model,
3772                                           tmp_path);
3773
3774       gtk_tree_path_free (tmp_path);
3775
3776       /* ... and the cursor to the end path */
3777       tmp_path = _gtk_tree_view_find_path (tree_view,
3778                                            tree_view->priv->rubber_band_end_tree,
3779                                            tree_view->priv->rubber_band_end_node);
3780       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3781       gtk_tree_path_free (tmp_path);
3782
3783       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3784     }
3785
3786   /* Clear status variables */
3787   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3788   tree_view->priv->rubber_band_shift = 0;
3789   tree_view->priv->rubber_band_ctrl = 0;
3790
3791   tree_view->priv->rubber_band_start_node = NULL;
3792   tree_view->priv->rubber_band_start_tree = NULL;
3793   tree_view->priv->rubber_band_end_node = NULL;
3794   tree_view->priv->rubber_band_end_tree = NULL;
3795 }
3796
3797 static void
3798 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3799                                                  GtkRBTree   *start_tree,
3800                                                  GtkRBNode   *start_node,
3801                                                  GtkRBTree   *end_tree,
3802                                                  GtkRBNode   *end_node,
3803                                                  gboolean     select,
3804                                                  gboolean     skip_start,
3805                                                  gboolean     skip_end)
3806 {
3807   if (start_node == end_node)
3808     return;
3809
3810   /* We skip the first node and jump inside the loop */
3811   if (skip_start)
3812     goto skip_first;
3813
3814   do
3815     {
3816       /* Small optimization by assuming insensitive nodes are never
3817        * selected.
3818        */
3819       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3820         {
3821           GtkTreePath *path;
3822           gboolean selectable;
3823
3824           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3825           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3826           gtk_tree_path_free (path);
3827
3828           if (!selectable)
3829             goto node_not_selectable;
3830         }
3831
3832       if (select)
3833         {
3834           if (tree_view->priv->rubber_band_shift)
3835             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3836           else if (tree_view->priv->rubber_band_ctrl)
3837             {
3838               /* Toggle the selection state */
3839               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3840                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3841               else
3842                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3843             }
3844           else
3845             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3846         }
3847       else
3848         {
3849           /* Mirror the above */
3850           if (tree_view->priv->rubber_band_shift)
3851             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3852           else if (tree_view->priv->rubber_band_ctrl)
3853             {
3854               /* Toggle the selection state */
3855               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3856                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3857               else
3858                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3859             }
3860           else
3861             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3862         }
3863
3864       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3865
3866 node_not_selectable:
3867       if (start_node == end_node)
3868         break;
3869
3870 skip_first:
3871
3872       if (start_node->children)
3873         {
3874           start_tree = start_node->children;
3875           start_node = start_tree->root;
3876           while (start_node->left != start_tree->nil)
3877             start_node = start_node->left;
3878         }
3879       else
3880         {
3881           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3882
3883           if (!start_tree)
3884             /* Ran out of tree */
3885             break;
3886         }
3887
3888       if (skip_end && start_node == end_node)
3889         break;
3890     }
3891   while (TRUE);
3892 }
3893
3894 static void
3895 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3896 {
3897   GtkRBTree *start_tree, *end_tree;
3898   GtkRBNode *start_node, *end_node;
3899
3900   _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);
3901   _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);
3902
3903   /* Handle the start area first */
3904   if (!tree_view->priv->rubber_band_start_node)
3905     {
3906       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3907                                                        start_tree,
3908                                                        start_node,
3909                                                        end_tree,
3910                                                        end_node,
3911                                                        TRUE,
3912                                                        FALSE,
3913                                                        FALSE);
3914     }
3915   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3916            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3917     {
3918       /* New node is above the old one; selection became bigger */
3919       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3920                                                        start_tree,
3921                                                        start_node,
3922                                                        tree_view->priv->rubber_band_start_tree,
3923                                                        tree_view->priv->rubber_band_start_node,
3924                                                        TRUE,
3925                                                        FALSE,
3926                                                        TRUE);
3927     }
3928   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3929            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3930     {
3931       /* New node is below the old one; selection became smaller */
3932       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3933                                                        tree_view->priv->rubber_band_start_tree,
3934                                                        tree_view->priv->rubber_band_start_node,
3935                                                        start_tree,
3936                                                        start_node,
3937                                                        FALSE,
3938                                                        FALSE,
3939                                                        TRUE);
3940     }
3941
3942   tree_view->priv->rubber_band_start_tree = start_tree;
3943   tree_view->priv->rubber_band_start_node = start_node;
3944
3945   /* Next, handle the end area */
3946   if (!tree_view->priv->rubber_band_end_node)
3947     {
3948       /* In the event this happens, start_node was also NULL; this case is
3949        * handled above.
3950        */
3951     }
3952   else if (!end_node)
3953     {
3954       /* Find the last node in the tree */
3955       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3956                                &end_tree, &end_node);
3957
3958       /* Selection reached end of the tree */
3959       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3960                                                        tree_view->priv->rubber_band_end_tree,
3961                                                        tree_view->priv->rubber_band_end_node,
3962                                                        end_tree,
3963                                                        end_node,
3964                                                        TRUE,
3965                                                        TRUE,
3966                                                        FALSE);
3967     }
3968   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3969            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3970     {
3971       /* New node is below the old one; selection became bigger */
3972       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3973                                                        tree_view->priv->rubber_band_end_tree,
3974                                                        tree_view->priv->rubber_band_end_node,
3975                                                        end_tree,
3976                                                        end_node,
3977                                                        TRUE,
3978                                                        TRUE,
3979                                                        FALSE);
3980     }
3981   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3982            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3983     {
3984       /* New node is above the old one; selection became smaller */
3985       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3986                                                        end_tree,
3987                                                        end_node,
3988                                                        tree_view->priv->rubber_band_end_tree,
3989                                                        tree_view->priv->rubber_band_end_node,
3990                                                        FALSE,
3991                                                        TRUE,
3992                                                        FALSE);
3993     }
3994
3995   tree_view->priv->rubber_band_end_tree = end_tree;
3996   tree_view->priv->rubber_band_end_node = end_node;
3997 }
3998
3999 static void
4000 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
4001 {
4002   gint x, y;
4003   GdkRectangle old_area;
4004   GdkRectangle new_area;
4005   GdkRectangle common;
4006   GdkRegion *invalid_region;
4007
4008   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4009   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4010   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
4011   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
4012
4013   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
4014
4015   x = MAX (x, 0);
4016   y = MAX (y, 0) + tree_view->priv->dy;
4017
4018   new_area.x = MIN (tree_view->priv->press_start_x, x);
4019   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
4020   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
4021   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
4022
4023   invalid_region = gdk_region_rectangle (&old_area);
4024   gdk_region_union_with_rect (invalid_region, &new_area);
4025
4026   gdk_rectangle_intersect (&old_area, &new_area, &common);
4027   if (common.width > 2 && common.height > 2)
4028     {
4029       GdkRegion *common_region;
4030
4031       /* make sure the border is invalidated */
4032       common.x += 1;
4033       common.y += 1;
4034       common.width -= 2;
4035       common.height -= 2;
4036
4037       common_region = gdk_region_rectangle (&common);
4038
4039       gdk_region_subtract (invalid_region, common_region);
4040       gdk_region_destroy (common_region);
4041     }
4042
4043   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
4044
4045   gdk_region_destroy (invalid_region);
4046
4047   tree_view->priv->rubber_band_x = x;
4048   tree_view->priv->rubber_band_y = y;
4049
4050   gtk_tree_view_update_rubber_band_selection (tree_view);
4051 }
4052
4053 static void
4054 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
4055                                 GdkRectangle *area)
4056 {
4057   cairo_t *cr;
4058   GdkRectangle rect;
4059   GdkRectangle rubber_rect;
4060
4061   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4062   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4063   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4064   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4065
4066   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4067     return;
4068
4069   cr = gdk_cairo_create (tree_view->priv->bin_window);
4070   cairo_set_line_width (cr, 1.0);
4071
4072   cairo_set_source_rgba (cr,
4073                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4074                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4075                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4076                          .25);
4077
4078   gdk_cairo_rectangle (cr, &rect);
4079   cairo_clip (cr);
4080   cairo_paint (cr);
4081
4082   cairo_set_source_rgb (cr,
4083                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4084                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4085                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4086
4087   cairo_rectangle (cr,
4088                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4089                    rubber_rect.width - 1, rubber_rect.height - 1);
4090   cairo_stroke (cr);
4091
4092   cairo_destroy (cr);
4093 }
4094
4095 static gboolean
4096 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4097                                  GdkEventMotion *event)
4098 {
4099   GtkTreeView *tree_view;
4100   GtkRBTree *tree;
4101   GtkRBNode *node;
4102   gint new_y;
4103
4104   tree_view = (GtkTreeView *) widget;
4105
4106   if (tree_view->priv->tree == NULL)
4107     return FALSE;
4108
4109   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4110     {
4111       gtk_grab_add (GTK_WIDGET (tree_view));
4112       gtk_tree_view_update_rubber_band (tree_view);
4113
4114       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4115     }
4116   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4117     {
4118       gtk_tree_view_update_rubber_band (tree_view);
4119
4120       add_scroll_timeout (tree_view);
4121     }
4122
4123   /* only check for an initiated drag when a button is pressed */
4124   if (tree_view->priv->pressed_button >= 0
4125       && !tree_view->priv->rubber_band_status)
4126     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4127
4128   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4129   if (new_y < 0)
4130     new_y = 0;
4131
4132   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4133
4134   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4135   if ((tree_view->priv->button_pressed_node != NULL) &&
4136       (tree_view->priv->button_pressed_node != node))
4137     node = NULL;
4138
4139   tree_view->priv->event_last_x = event->x;
4140   tree_view->priv->event_last_y = event->y;
4141
4142   prelight_or_select (tree_view, tree, node, event->x, event->y);
4143
4144   return TRUE;
4145 }
4146
4147 static gboolean
4148 gtk_tree_view_motion (GtkWidget      *widget,
4149                       GdkEventMotion *event)
4150 {
4151   GtkTreeView *tree_view;
4152
4153   tree_view = (GtkTreeView *) widget;
4154
4155   /* Resizing a column */
4156   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4157     return gtk_tree_view_motion_resize_column (widget, event);
4158
4159   /* Drag column */
4160   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4161     return gtk_tree_view_motion_drag_column (widget, event);
4162
4163   /* Sanity check it */
4164   if (event->window == tree_view->priv->bin_window)
4165     return gtk_tree_view_motion_bin_window (widget, event);
4166
4167   return FALSE;
4168 }
4169
4170 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4171  * the tree is empty.
4172  */
4173 static void
4174 invalidate_empty_focus (GtkTreeView *tree_view)
4175 {
4176   GdkRectangle area;
4177
4178   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4179     return;
4180
4181   area.x = 0;
4182   area.y = 0;
4183   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4184   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4185 }
4186
4187 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4188  * is empty.
4189  */
4190 static void
4191 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4192 {
4193   gint w, h;
4194
4195   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4196     return;
4197
4198   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4199
4200   w -= 2;
4201   h -= 2;
4202
4203   if (w > 0 && h > 0)
4204     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4205                      tree_view->priv->bin_window,
4206                      GTK_WIDGET_STATE (tree_view),
4207                      clip_area,
4208                      GTK_WIDGET (tree_view),
4209                      NULL,
4210                      1, 1, w, h);
4211 }
4212
4213 static void
4214 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4215                                GdkEventExpose *event,
4216                                gint            n_visible_columns)
4217 {
4218   GList *list = tree_view->priv->columns;
4219   gint i = 0;
4220   gint current_x = 0;
4221
4222   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4223       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4224     return;
4225
4226   /* Only draw the lines for visible rows and columns */
4227   for (list = tree_view->priv->columns; list; list = list->next, i++)
4228     {
4229       GtkTreeViewColumn *column = list->data;
4230
4231       /* We don't want a line for the last column */
4232       if (i == n_visible_columns - 1)
4233         break;
4234
4235       if (! column->visible)
4236         continue;
4237
4238       current_x += column->width;
4239
4240       gdk_draw_line (event->window,
4241                      tree_view->priv->grid_line_gc,
4242                      current_x - 1, 0,
4243                      current_x - 1, tree_view->priv->height);
4244     }
4245 }
4246
4247 /* Warning: Very scary function.
4248  * Modify at your own risk
4249  *
4250  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4251  * FIXME: It's not...
4252  */
4253 static gboolean
4254 gtk_tree_view_bin_expose (GtkWidget      *widget,
4255                           GdkEventExpose *event)
4256 {
4257   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4258   GtkTreePath *path;
4259   GtkRBTree *tree;
4260   GList *list;
4261   GtkRBNode *node;
4262   GtkRBNode *cursor = NULL;
4263   GtkRBTree *cursor_tree = NULL;
4264   GtkRBNode *drag_highlight = NULL;
4265   GtkRBTree *drag_highlight_tree = NULL;
4266   GtkTreeIter iter;
4267   gint new_y;
4268   gint y_offset, cell_offset;
4269   gint max_height;
4270   gint depth;
4271   GdkRectangle background_area;
4272   GdkRectangle cell_area;
4273   guint flags;
4274   gint highlight_x;
4275   gint expander_cell_width;
4276   gint bin_window_width;
4277   gint bin_window_height;
4278   GtkTreePath *cursor_path;
4279   GtkTreePath *drag_dest_path;
4280   GList *first_column, *last_column;
4281   gint vertical_separator;
4282   gint horizontal_separator;
4283   gint focus_line_width;
4284   gboolean allow_rules;
4285   gboolean has_special_cell;
4286   gboolean rtl;
4287   gint n_visible_columns;
4288   gint pointer_x, pointer_y;
4289   gint grid_line_width;
4290   gboolean got_pointer = FALSE;
4291   gboolean row_ending_details;
4292   gboolean draw_vgrid_lines, draw_hgrid_lines;
4293
4294   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4295
4296   gtk_widget_style_get (widget,
4297                         "horizontal-separator", &horizontal_separator,
4298                         "vertical-separator", &vertical_separator,
4299                         "allow-rules", &allow_rules,
4300                         "focus-line-width", &focus_line_width,
4301                         "row-ending-details", &row_ending_details,
4302                         NULL);
4303
4304   if (tree_view->priv->tree == NULL)
4305     {
4306       draw_empty_focus (tree_view, &event->area);
4307       return TRUE;
4308     }
4309
4310   /* clip event->area to the visible area */
4311   if (event->area.height < 0)
4312     return TRUE;
4313
4314   validate_visible_area (tree_view);
4315
4316   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4317
4318   if (new_y < 0)
4319     new_y = 0;
4320   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4321   gdk_drawable_get_size (tree_view->priv->bin_window,
4322                          &bin_window_width, &bin_window_height);
4323
4324   if (tree_view->priv->height < bin_window_height)
4325     {
4326       gtk_paint_flat_box (widget->style,
4327                           event->window,
4328                           widget->state,
4329                           GTK_SHADOW_NONE,
4330                           &event->area,
4331                           widget,
4332                           "cell_even",
4333                           0, tree_view->priv->height,
4334                           bin_window_width,
4335                           bin_window_height - tree_view->priv->height);
4336     }
4337
4338   if (node == NULL)
4339     return TRUE;
4340
4341   /* find the path for the node */
4342   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4343                                    tree,
4344                                    node);
4345   gtk_tree_model_get_iter (tree_view->priv->model,
4346                            &iter,
4347                            path);
4348   depth = gtk_tree_path_get_depth (path);
4349   gtk_tree_path_free (path);
4350
4351   cursor_path = NULL;
4352   drag_dest_path = NULL;
4353
4354   if (tree_view->priv->cursor)
4355     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4356
4357   if (cursor_path)
4358     _gtk_tree_view_find_node (tree_view, cursor_path,
4359                               &cursor_tree, &cursor);
4360
4361   if (tree_view->priv->drag_dest_row)
4362     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4363
4364   if (drag_dest_path)
4365     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4366                               &drag_highlight_tree, &drag_highlight);
4367
4368   draw_vgrid_lines =
4369     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4370     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4371   draw_hgrid_lines =
4372     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4373     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4374
4375   if (draw_vgrid_lines || draw_hgrid_lines)
4376     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4377
4378   n_visible_columns = 0;
4379   for (list = tree_view->priv->columns; list; list = list->next)
4380     {
4381       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4382         continue;
4383       n_visible_columns ++;
4384     }
4385
4386   /* Find the last column */
4387   for (last_column = g_list_last (tree_view->priv->columns);
4388        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4389        last_column = last_column->prev)
4390     ;
4391
4392   /* and the first */
4393   for (first_column = g_list_first (tree_view->priv->columns);
4394        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4395        first_column = first_column->next)
4396     ;
4397
4398   /* Actually process the expose event.  To do this, we want to
4399    * start at the first node of the event, and walk the tree in
4400    * order, drawing each successive node.
4401    */
4402
4403   do
4404     {
4405       gboolean parity;
4406       gboolean is_separator = FALSE;
4407       gboolean is_first = FALSE;
4408       gboolean is_last = FALSE;
4409
4410       is_separator = row_is_separator (tree_view, &iter, NULL);
4411
4412       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4413
4414       cell_offset = 0;
4415       highlight_x = 0; /* should match x coord of first cell */
4416       expander_cell_width = 0;
4417
4418       background_area.y = y_offset + event->area.y;
4419       background_area.height = max_height;
4420
4421       flags = 0;
4422
4423       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4424         flags |= GTK_CELL_RENDERER_PRELIT;
4425
4426       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4427         flags |= GTK_CELL_RENDERER_SELECTED;
4428
4429       parity = _gtk_rbtree_node_find_parity (tree, node);
4430
4431       /* we *need* to set cell data on all cells before the call
4432        * to _has_special_cell, else _has_special_cell() does not
4433        * return a correct value.
4434        */
4435       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4436            list;
4437            list = (rtl ? list->prev : list->next))
4438         {
4439           GtkTreeViewColumn *column = list->data;
4440           gtk_tree_view_column_cell_set_cell_data (column,
4441                                                    tree_view->priv->model,
4442                                                    &iter,
4443                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4444                                                    node->children?TRUE:FALSE);
4445         }
4446
4447       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4448
4449       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4450            list;
4451            list = (rtl ? list->prev : list->next))
4452         {
4453           GtkTreeViewColumn *column = list->data;
4454           const gchar *detail = NULL;
4455           GtkStateType state;
4456
4457           if (!column->visible)
4458             continue;
4459
4460           if (cell_offset > event->area.x + event->area.width ||
4461               cell_offset + column->width < event->area.x)
4462             {
4463               cell_offset += column->width;
4464               continue;
4465             }
4466
4467           if (column->show_sort_indicator)
4468             flags |= GTK_CELL_RENDERER_SORTED;
4469           else
4470             flags &= ~GTK_CELL_RENDERER_SORTED;
4471
4472           if (cursor == node)
4473             flags |= GTK_CELL_RENDERER_FOCUSED;
4474           else
4475             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4476
4477           background_area.x = cell_offset;
4478           background_area.width = column->width;
4479
4480           cell_area = background_area;
4481           cell_area.y += vertical_separator / 2;
4482           cell_area.x += horizontal_separator / 2;
4483           cell_area.height -= vertical_separator;
4484           cell_area.width -= horizontal_separator;
4485
4486           if (draw_vgrid_lines)
4487             {
4488               if (list == first_column)
4489                 {
4490                   cell_area.width -= grid_line_width / 2;
4491                 }
4492               else if (list == last_column)
4493                 {
4494                   cell_area.x += grid_line_width / 2;
4495                   cell_area.width -= grid_line_width / 2;
4496                 }
4497               else
4498                 {
4499                   cell_area.x += grid_line_width / 2;
4500                   cell_area.width -= grid_line_width;
4501                 }
4502             }
4503
4504           if (draw_hgrid_lines)
4505             {
4506               cell_area.y += grid_line_width / 2;
4507               cell_area.height -= grid_line_width;
4508             }
4509
4510           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4511             {
4512               cell_offset += column->width;
4513               continue;
4514             }
4515
4516           gtk_tree_view_column_cell_set_cell_data (column,
4517                                                    tree_view->priv->model,
4518                                                    &iter,
4519                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4520                                                    node->children?TRUE:FALSE);
4521
4522           /* Select the detail for drawing the cell.  relevant
4523            * factors are parity, sortedness, and whether to
4524            * display rules.
4525            */
4526           if (allow_rules && tree_view->priv->has_rules)
4527             {
4528               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4529                   n_visible_columns >= 3)
4530                 {
4531                   if (parity)
4532                     detail = "cell_odd_ruled_sorted";
4533                   else
4534                     detail = "cell_even_ruled_sorted";
4535                 }
4536               else
4537                 {
4538                   if (parity)
4539                     detail = "cell_odd_ruled";
4540                   else
4541                     detail = "cell_even_ruled";
4542                 }
4543             }
4544           else
4545             {
4546               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4547                   n_visible_columns >= 3)
4548                 {
4549                   if (parity)
4550                     detail = "cell_odd_sorted";
4551                   else
4552                     detail = "cell_even_sorted";
4553                 }
4554               else
4555                 {
4556                   if (parity)
4557                     detail = "cell_odd";
4558                   else
4559                     detail = "cell_even";
4560                 }
4561             }
4562
4563           g_assert (detail);
4564
4565           if (widget->state == GTK_STATE_INSENSITIVE)
4566             state = GTK_STATE_INSENSITIVE;
4567           else if (flags & GTK_CELL_RENDERER_SELECTED)
4568             state = GTK_STATE_SELECTED;
4569           else
4570             state = GTK_STATE_NORMAL;
4571
4572           /* Draw background */
4573           if (row_ending_details)
4574             {
4575               char new_detail[128];
4576
4577               is_first = (rtl ? !list->next : !list->prev);
4578               is_last = (rtl ? !list->prev : !list->next);
4579
4580               /* (I don't like the snprintfs either, but couldn't find a
4581                * less messy way).
4582                */
4583               if (is_first && is_last)
4584                 g_snprintf (new_detail, 127, "%s", detail);
4585               else if (is_first)
4586                 g_snprintf (new_detail, 127, "%s_start", detail);
4587               else if (is_last)
4588                 g_snprintf (new_detail, 127, "%s_end", detail);
4589               else
4590                 g_snprintf (new_detail, 128, "%s_middle", detail);
4591
4592               gtk_paint_flat_box (widget->style,
4593                                   event->window,
4594                                   state,
4595                                   GTK_SHADOW_NONE,
4596                                   &event->area,
4597                                   widget,
4598                                   new_detail,
4599                                   background_area.x,
4600                                   background_area.y,
4601                                   background_area.width,
4602                                   background_area.height);
4603             }
4604           else
4605             {
4606               gtk_paint_flat_box (widget->style,
4607                                   event->window,
4608                                   state,
4609                                   GTK_SHADOW_NONE,
4610                                   &event->area,
4611                                   widget,
4612                                   detail,
4613                                   background_area.x,
4614                                   background_area.y,
4615                                   background_area.width,
4616                                   background_area.height);
4617             }
4618
4619           if (draw_hgrid_lines)
4620             {
4621               if (background_area.y > 0)
4622                 gdk_draw_line (event->window,
4623                                tree_view->priv->grid_line_gc,
4624                                background_area.x, background_area.y,
4625                                background_area.x + background_area.width,
4626                                background_area.y);
4627
4628               if (y_offset + max_height >= event->area.height)
4629                 gdk_draw_line (event->window,
4630                                tree_view->priv->grid_line_gc,
4631                                background_area.x, background_area.y + max_height,
4632                                background_area.x + background_area.width,
4633                                background_area.y + max_height);
4634             }
4635
4636           if (gtk_tree_view_is_expander_column (tree_view, column))
4637             {
4638               if (!rtl)
4639                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4640               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4641
4642               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4643                 {
4644                   if (!rtl)
4645                     cell_area.x += depth * tree_view->priv->expander_size;
4646                   cell_area.width -= depth * tree_view->priv->expander_size;
4647                 }
4648
4649               /* If we have an expander column, the highlight underline
4650                * starts with that column, so that it indicates which
4651                * level of the tree we're dropping at.
4652                */
4653               highlight_x = cell_area.x;
4654               expander_cell_width = cell_area.width;
4655
4656               if (is_separator)
4657                 gtk_paint_hline (widget->style,
4658                                  event->window,
4659                                  state,
4660                                  &cell_area,
4661                                  widget,
4662                                  NULL,
4663                                  cell_area.x,
4664                                  cell_area.x + cell_area.width,
4665                                  cell_area.y + cell_area.height / 2);
4666               else
4667                 _gtk_tree_view_column_cell_render (column,
4668                                                    event->window,
4669                                                    &background_area,
4670                                                    &cell_area,
4671                                                    &event->area,
4672                                                    flags);
4673               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4674                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4675                 {
4676                   if (!got_pointer)
4677                     {
4678                       gdk_window_get_pointer (tree_view->priv->bin_window,
4679                                               &pointer_x, &pointer_y, NULL);
4680                       got_pointer = TRUE;
4681                     }
4682
4683                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4684                                             tree,
4685                                             node,
4686                                             pointer_x, pointer_y);
4687                 }
4688             }
4689           else
4690             {
4691               if (is_separator)
4692                 gtk_paint_hline (widget->style,
4693                                  event->window,
4694                                  state,
4695                                  &cell_area,
4696                                  widget,
4697                                  NULL,
4698                                  cell_area.x,
4699                                  cell_area.x + cell_area.width,
4700                                  cell_area.y + cell_area.height / 2);
4701               else
4702                 _gtk_tree_view_column_cell_render (column,
4703                                                    event->window,
4704                                                    &background_area,
4705                                                    &cell_area,
4706                                                    &event->area,
4707                                                    flags);
4708             }
4709
4710           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4711               tree_view->priv->tree_lines_enabled)
4712             {
4713               gint x = background_area.x;
4714               gint mult = rtl ? -1 : 1;
4715               gint y0 = background_area.y;
4716               gint y1 = background_area.y + background_area.height/2;
4717               gint y2 = background_area.y + background_area.height;
4718
4719               if (rtl)
4720                 x += background_area.width - 1;
4721
4722               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4723                   && depth > 1)
4724                 {
4725                   gdk_draw_line (event->window,
4726                                  tree_view->priv->tree_line_gc,
4727                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4728                                  y1,
4729                                  x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4730                                  y1);
4731                 }
4732               else if (depth > 1)
4733                 {
4734                   gdk_draw_line (event->window,
4735                                  tree_view->priv->tree_line_gc,
4736                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4737                                  y1,
4738                                  x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4739                                  y1);
4740                 }
4741
4742               if (depth > 1)
4743                 {
4744                   gint i;
4745                   GtkRBNode *tmp_node;
4746                   GtkRBTree *tmp_tree;
4747
4748                   if (!_gtk_rbtree_next (tree, node))
4749                     gdk_draw_line (event->window,
4750                                    tree_view->priv->tree_line_gc,
4751                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4752                                    y0,
4753                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4754                                    y1);
4755                   else
4756                     gdk_draw_line (event->window,
4757                                    tree_view->priv->tree_line_gc,
4758                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4759                                    y0,
4760                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4761                                    y2);
4762
4763                   tmp_node = tree->parent_node;
4764                   tmp_tree = tree->parent_tree;
4765
4766                   for (i = depth - 2; i > 0; i--)
4767                     {
4768                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4769                         gdk_draw_line (event->window,
4770                                        tree_view->priv->tree_line_gc,
4771                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4772                                        y0,
4773                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4774                                        y2);
4775
4776                       tmp_node = tmp_tree->parent_node;
4777                       tmp_tree = tmp_tree->parent_tree;
4778                     }
4779                 }
4780             }
4781
4782           if (node == cursor && has_special_cell &&
4783               ((column == tree_view->priv->focus_column &&
4784                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4785                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4786                (column == tree_view->priv->edited_column)))
4787             {
4788               _gtk_tree_view_column_cell_draw_focus (column,
4789                                                      event->window,
4790                                                      &background_area,
4791                                                      &cell_area,
4792                                                      &event->area,
4793                                                      flags);
4794             }
4795
4796           cell_offset += column->width;
4797         }
4798
4799       if (node == drag_highlight)
4800         {
4801           /* Draw indicator for the drop
4802            */
4803           gint highlight_y = -1;
4804           GtkRBTree *tree = NULL;
4805           GtkRBNode *node = NULL;
4806           gint width;
4807
4808           switch (tree_view->priv->drag_dest_pos)
4809             {
4810             case GTK_TREE_VIEW_DROP_BEFORE:
4811               highlight_y = background_area.y - 1;
4812               if (highlight_y < 0)
4813                       highlight_y = 0;
4814               break;
4815
4816             case GTK_TREE_VIEW_DROP_AFTER:
4817               highlight_y = background_area.y + background_area.height - 1;
4818               break;
4819
4820             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4821             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4822               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4823
4824               if (tree == NULL)
4825                 break;
4826               gdk_drawable_get_size (tree_view->priv->bin_window,
4827                                      &width, NULL);
4828
4829               if (row_ending_details)
4830                 gtk_paint_focus (widget->style,
4831                                  tree_view->priv->bin_window,
4832                                  GTK_WIDGET_STATE (widget),
4833                                  &event->area,
4834                                  widget,
4835                                  (is_first
4836                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4837                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4838                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4839                                  - focus_line_width / 2,
4840                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4841                                - focus_line_width + 1);
4842               else
4843                 gtk_paint_focus (widget->style,
4844                                  tree_view->priv->bin_window,
4845                                  GTK_WIDGET_STATE (widget),
4846                                  &event->area,
4847                                  widget,
4848                                  "treeview-drop-indicator",
4849                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4850                                  - focus_line_width / 2,
4851                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4852                                  - focus_line_width + 1);
4853               break;
4854             }
4855
4856           if (highlight_y >= 0)
4857             {
4858               gdk_draw_line (event->window,
4859                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4860                              rtl ? highlight_x + expander_cell_width : highlight_x,
4861                              highlight_y,
4862                              rtl ? 0 : bin_window_width,
4863                              highlight_y);
4864             }
4865         }
4866
4867       /* draw the big row-spanning focus rectangle, if needed */
4868       if (!has_special_cell && node == cursor &&
4869           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4870           GTK_WIDGET_HAS_FOCUS (widget))
4871         {
4872           gint tmp_y, tmp_height;
4873           gint width;
4874           GtkStateType focus_rect_state;
4875
4876           focus_rect_state =
4877             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4878             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4879              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4880               GTK_STATE_NORMAL));
4881
4882           gdk_drawable_get_size (tree_view->priv->bin_window,
4883                                  &width, NULL);
4884
4885           if (draw_hgrid_lines)
4886             {
4887               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4888               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4889             }
4890           else
4891             {
4892               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4893               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4894             }
4895
4896           if (row_ending_details)
4897             gtk_paint_focus (widget->style,
4898                              tree_view->priv->bin_window,
4899                              focus_rect_state,
4900                              &event->area,
4901                              widget,
4902                              (is_first
4903                               ? (is_last ? "treeview" : "treeview-left" )
4904                               : (is_last ? "treeview-right" : "treeview-middle" )),
4905                              0, tmp_y,
4906                              width, tmp_height);
4907           else
4908             gtk_paint_focus (widget->style,
4909                              tree_view->priv->bin_window,
4910                              focus_rect_state,
4911                              &event->area,
4912                              widget,
4913                              "treeview",
4914                              0, tmp_y,
4915                              width, tmp_height);
4916         }
4917
4918       y_offset += max_height;
4919       if (node->children)
4920         {
4921           GtkTreeIter parent = iter;
4922           gboolean has_child;
4923
4924           tree = node->children;
4925           node = tree->root;
4926
4927           g_assert (node != tree->nil);
4928
4929           while (node->left != tree->nil)
4930             node = node->left;
4931           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4932                                                     &iter,
4933                                                     &parent);
4934           depth++;
4935
4936           /* Sanity Check! */
4937           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4938         }
4939       else
4940         {
4941           gboolean done = FALSE;
4942
4943           do
4944             {
4945               node = _gtk_rbtree_next (tree, node);
4946               if (node != NULL)
4947                 {
4948                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4949                   done = TRUE;
4950
4951                   /* Sanity Check! */
4952                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4953                 }
4954               else
4955                 {
4956                   GtkTreeIter parent_iter = iter;
4957                   gboolean has_parent;
4958
4959                   node = tree->parent_node;
4960                   tree = tree->parent_tree;
4961                   if (tree == NULL)
4962                     /* we should go to done to free some memory */
4963                     goto done;
4964                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4965                                                            &iter,
4966                                                            &parent_iter);
4967                   depth--;
4968
4969                   /* Sanity check */
4970                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4971                 }
4972             }
4973           while (!done);
4974         }
4975     }
4976   while (y_offset < event->area.height);
4977
4978 done:
4979   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4980
4981  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4982    {
4983      GdkRectangle *rectangles;
4984      gint n_rectangles;
4985
4986      gdk_region_get_rectangles (event->region,
4987                                 &rectangles,
4988                                 &n_rectangles);
4989
4990      while (n_rectangles--)
4991        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4992
4993      g_free (rectangles);
4994    }
4995
4996   if (cursor_path)
4997     gtk_tree_path_free (cursor_path);
4998
4999   if (drag_dest_path)
5000     gtk_tree_path_free (drag_dest_path);
5001
5002   return FALSE;
5003 }
5004
5005 static gboolean
5006 gtk_tree_view_expose (GtkWidget      *widget,
5007                       GdkEventExpose *event)
5008 {
5009   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5010
5011   if (event->window == tree_view->priv->bin_window)
5012     {
5013       gboolean retval;
5014       GList *tmp_list;
5015
5016       retval = gtk_tree_view_bin_expose (widget, event);
5017
5018       /* We can't just chain up to Container::expose as it will try to send the
5019        * event to the headers, so we handle propagating it to our children
5020        * (eg. widgets being edited) ourselves.
5021        */
5022       tmp_list = tree_view->priv->children;
5023       while (tmp_list)
5024         {
5025           GtkTreeViewChild *child = tmp_list->data;
5026           tmp_list = tmp_list->next;
5027
5028           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
5029         }
5030
5031       return retval;
5032     }
5033
5034   else if (event->window == tree_view->priv->header_window)
5035     {
5036       GList *list;
5037
5038       for (list = tree_view->priv->columns; list != NULL; list = list->next)
5039         {
5040           GtkTreeViewColumn *column = list->data;
5041
5042           if (column == tree_view->priv->drag_column)
5043             continue;
5044
5045           if (column->visible)
5046             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5047                                             column->button,
5048                                             event);
5049         }
5050     }
5051   else if (event->window == tree_view->priv->drag_window)
5052     {
5053       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5054                                       tree_view->priv->drag_column->button,
5055                                       event);
5056     }
5057   return TRUE;
5058 }
5059
5060 enum
5061 {
5062   DROP_HOME,
5063   DROP_RIGHT,
5064   DROP_LEFT,
5065   DROP_END
5066 };
5067
5068 /* returns 0x1 when no column has been found -- yes it's hackish */
5069 static GtkTreeViewColumn *
5070 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5071                                GtkTreeViewColumn *column,
5072                                gint               drop_position)
5073 {
5074   GtkTreeViewColumn *left_column = NULL;
5075   GtkTreeViewColumn *cur_column = NULL;
5076   GList *tmp_list;
5077
5078   if (!column->reorderable)
5079     return (GtkTreeViewColumn *)0x1;
5080
5081   switch (drop_position)
5082     {
5083       case DROP_HOME:
5084         /* find first column where we can drop */
5085         tmp_list = tree_view->priv->columns;
5086         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5087           return (GtkTreeViewColumn *)0x1;
5088
5089         while (tmp_list)
5090           {
5091             g_assert (tmp_list);
5092
5093             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5094             tmp_list = tmp_list->next;
5095
5096             if (left_column && left_column->visible == FALSE)
5097               continue;
5098
5099             if (!tree_view->priv->column_drop_func)
5100               return left_column;
5101
5102             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5103               {
5104                 left_column = cur_column;
5105                 continue;
5106               }
5107
5108             return left_column;
5109           }
5110
5111         if (!tree_view->priv->column_drop_func)
5112           return left_column;
5113
5114         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5115           return left_column;
5116         else
5117           return (GtkTreeViewColumn *)0x1;
5118         break;
5119
5120       case DROP_RIGHT:
5121         /* find first column after column where we can drop */
5122         tmp_list = tree_view->priv->columns;
5123
5124         for (; tmp_list; tmp_list = tmp_list->next)
5125           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5126             break;
5127
5128         if (!tmp_list || !tmp_list->next)
5129           return (GtkTreeViewColumn *)0x1;
5130
5131         tmp_list = tmp_list->next;
5132         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5133         tmp_list = tmp_list->next;
5134
5135         while (tmp_list)
5136           {
5137             g_assert (tmp_list);
5138
5139             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5140             tmp_list = tmp_list->next;
5141
5142             if (left_column && left_column->visible == FALSE)
5143               {
5144                 left_column = cur_column;
5145                 if (tmp_list)
5146                   tmp_list = tmp_list->next;
5147                 continue;
5148               }
5149
5150             if (!tree_view->priv->column_drop_func)
5151               return left_column;
5152
5153             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5154               {
5155                 left_column = cur_column;
5156                 continue;
5157               }
5158
5159             return left_column;
5160           }
5161
5162         if (!tree_view->priv->column_drop_func)
5163           return left_column;
5164
5165         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5166           return left_column;
5167         else
5168           return (GtkTreeViewColumn *)0x1;
5169         break;
5170
5171       case DROP_LEFT:
5172         /* find first column before column where we can drop */
5173         tmp_list = tree_view->priv->columns;
5174
5175         for (; tmp_list; tmp_list = tmp_list->next)
5176           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5177             break;
5178
5179         if (!tmp_list || !tmp_list->prev)
5180           return (GtkTreeViewColumn *)0x1;
5181
5182         tmp_list = tmp_list->prev;
5183         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5184         tmp_list = tmp_list->prev;
5185
5186         while (tmp_list)
5187           {
5188             g_assert (tmp_list);
5189
5190             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5191
5192             if (left_column && !left_column->visible)
5193               {
5194                 /*if (!tmp_list->prev)
5195                   return (GtkTreeViewColumn *)0x1;
5196                   */
5197 /*
5198                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5199                 tmp_list = tmp_list->prev->prev;
5200                 continue;*/
5201
5202                 cur_column = left_column;
5203                 if (tmp_list)
5204                   tmp_list = tmp_list->prev;
5205                 continue;
5206               }
5207
5208             if (!tree_view->priv->column_drop_func)
5209               return left_column;
5210
5211             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5212               return left_column;
5213
5214             cur_column = left_column;
5215             tmp_list = tmp_list->prev;
5216           }
5217
5218         if (!tree_view->priv->column_drop_func)
5219           return NULL;
5220
5221         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5222           return NULL;
5223         else
5224           return (GtkTreeViewColumn *)0x1;
5225         break;
5226
5227       case DROP_END:
5228         /* same as DROP_HOME case, but doing it backwards */
5229         tmp_list = g_list_last (tree_view->priv->columns);
5230         cur_column = NULL;
5231
5232         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5233           return (GtkTreeViewColumn *)0x1;
5234
5235         while (tmp_list)
5236           {
5237             g_assert (tmp_list);
5238
5239             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5240
5241             if (left_column && !left_column->visible)
5242               {
5243                 cur_column = left_column;
5244                 tmp_list = tmp_list->prev;
5245               }
5246
5247             if (!tree_view->priv->column_drop_func)
5248               return left_column;
5249
5250             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5251               return left_column;
5252
5253             cur_column = left_column;
5254             tmp_list = tmp_list->prev;
5255           }
5256
5257         if (!tree_view->priv->column_drop_func)
5258           return NULL;
5259
5260         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5261           return NULL;
5262         else
5263           return (GtkTreeViewColumn *)0x1;
5264         break;
5265     }
5266
5267   return (GtkTreeViewColumn *)0x1;
5268 }
5269
5270 static gboolean
5271 gtk_tree_view_key_press (GtkWidget   *widget,
5272                          GdkEventKey *event)
5273 {
5274   GtkTreeView *tree_view = (GtkTreeView *) widget;
5275
5276   if (tree_view->priv->rubber_band_status)
5277     {
5278       if (event->keyval == GDK_Escape)
5279         gtk_tree_view_stop_rubber_band (tree_view);
5280
5281       return TRUE;
5282     }
5283
5284   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5285     {
5286       if (event->keyval == GDK_Escape)
5287         {
5288           tree_view->priv->cur_reorder = NULL;
5289           gtk_tree_view_button_release_drag_column (widget, NULL);
5290         }
5291       return TRUE;
5292     }
5293
5294   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5295     {
5296       GList *focus_column;
5297       gboolean rtl;
5298
5299       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5300
5301       for (focus_column = tree_view->priv->columns;
5302            focus_column;
5303            focus_column = focus_column->next)
5304         {
5305           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5306
5307           if (GTK_WIDGET_HAS_FOCUS (column->button))
5308             break;
5309         }
5310
5311       if (focus_column &&
5312           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5313           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5314            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5315         {
5316           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5317
5318           if (!column->resizable)
5319             {
5320               gtk_widget_error_bell (widget);
5321               return TRUE;
5322             }
5323
5324           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5325               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5326             {
5327               gint old_width = column->resized_width;
5328
5329               column->resized_width = MAX (column->resized_width,
5330                                            column->width);
5331               column->resized_width -= 2;
5332               if (column->resized_width < 0)
5333                 column->resized_width = 0;
5334
5335               if (column->min_width == -1)
5336                 column->resized_width = MAX (column->button->requisition.width,
5337                                              column->resized_width);
5338               else
5339                 column->resized_width = MAX (column->min_width,
5340                                              column->resized_width);
5341
5342               if (column->max_width != -1)
5343                 column->resized_width = MIN (column->resized_width,
5344                                              column->max_width);
5345
5346               column->use_resized_width = TRUE;
5347
5348               if (column->resized_width != old_width)
5349                 gtk_widget_queue_resize (widget);
5350               else
5351                 gtk_widget_error_bell (widget);
5352             }
5353           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5354                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5355             {
5356               gint old_width = column->resized_width;
5357
5358               column->resized_width = MAX (column->resized_width,
5359                                            column->width);
5360               column->resized_width += 2;
5361
5362               if (column->max_width != -1)
5363                 column->resized_width = MIN (column->resized_width,
5364                                              column->max_width);
5365
5366               column->use_resized_width = TRUE;
5367
5368               if (column->resized_width != old_width)
5369                 gtk_widget_queue_resize (widget);
5370               else
5371                 gtk_widget_error_bell (widget);
5372             }
5373
5374           return TRUE;
5375         }
5376
5377       if (focus_column &&
5378           (event->state & GDK_MOD1_MASK) &&
5379           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5380            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5381            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5382            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5383         {
5384           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5385
5386           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5387               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5388             {
5389               GtkTreeViewColumn *col;
5390               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5391               if (col != (GtkTreeViewColumn *)0x1)
5392                 gtk_tree_view_move_column_after (tree_view, column, col);
5393               else
5394                 gtk_widget_error_bell (widget);
5395             }
5396           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5397                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5398             {
5399               GtkTreeViewColumn *col;
5400               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5401               if (col != (GtkTreeViewColumn *)0x1)
5402                 gtk_tree_view_move_column_after (tree_view, column, col);
5403               else
5404                 gtk_widget_error_bell (widget);
5405             }
5406           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5407             {
5408               GtkTreeViewColumn *col;
5409               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5410               if (col != (GtkTreeViewColumn *)0x1)
5411                 gtk_tree_view_move_column_after (tree_view, column, col);
5412               else
5413                 gtk_widget_error_bell (widget);
5414             }
5415           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5416             {
5417               GtkTreeViewColumn *col;
5418               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5419               if (col != (GtkTreeViewColumn *)0x1)
5420                 gtk_tree_view_move_column_after (tree_view, column, col);
5421               else
5422                 gtk_widget_error_bell (widget);
5423             }
5424
5425           return TRUE;
5426         }
5427     }
5428
5429   /* Chain up to the parent class.  It handles the keybindings. */
5430   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5431     return TRUE;
5432
5433   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5434     {
5435       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5436       return FALSE;
5437     }
5438
5439   /* We pass the event to the search_entry.  If its text changes, then we start
5440    * the typeahead find capabilities. */
5441   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5442       && tree_view->priv->enable_search
5443       && !tree_view->priv->search_custom_entry_set)
5444     {
5445       GdkEvent *new_event;
5446       char *old_text;
5447       const char *new_text;
5448       gboolean retval;
5449       GdkScreen *screen;
5450       gboolean text_modified;
5451       gulong popup_menu_id;
5452
5453       gtk_tree_view_ensure_interactive_directory (tree_view);
5454
5455       /* Make a copy of the current text */
5456       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5457       new_event = gdk_event_copy ((GdkEvent *) event);
5458       g_object_unref (((GdkEventKey *) new_event)->window);
5459       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5460       gtk_widget_realize (tree_view->priv->search_window);
5461
5462       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5463                                         "popup-menu", G_CALLBACK (gtk_true),
5464                                         NULL);
5465
5466       /* Move the entry off screen */
5467       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5468       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5469                        gdk_screen_get_width (screen) + 1,
5470                        gdk_screen_get_height (screen) + 1);
5471       gtk_widget_show (tree_view->priv->search_window);
5472
5473       /* Send the event to the window.  If the preedit_changed signal is emitted
5474        * during this event, we will set priv->imcontext_changed  */
5475       tree_view->priv->imcontext_changed = FALSE;
5476       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5477       gdk_event_free (new_event);
5478       gtk_widget_hide (tree_view->priv->search_window);
5479
5480       g_signal_handler_disconnect (tree_view->priv->search_entry,
5481                                    popup_menu_id);
5482
5483       /* We check to make sure that the entry tried to handle the text, and that
5484        * the text has changed.
5485        */
5486       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5487       text_modified = strcmp (old_text, new_text) != 0;
5488       g_free (old_text);
5489       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5490           (retval && text_modified))               /* ...or the text was modified */
5491         {
5492           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5493             {
5494               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5495               return TRUE;
5496             }
5497           else
5498             {
5499               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5500               return FALSE;
5501             }
5502         }
5503     }
5504
5505   return FALSE;
5506 }
5507
5508 static gboolean
5509 gtk_tree_view_key_release (GtkWidget   *widget,
5510                            GdkEventKey *event)
5511 {
5512   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5513
5514   if (tree_view->priv->rubber_band_status)
5515     return TRUE;
5516
5517   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5518 }
5519
5520 /* FIXME Is this function necessary? Can I get an enter_notify event
5521  * w/o either an expose event or a mouse motion event?
5522  */
5523 static gboolean
5524 gtk_tree_view_enter_notify (GtkWidget        *widget,
5525                             GdkEventCrossing *event)
5526 {
5527   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5528   GtkRBTree *tree;
5529   GtkRBNode *node;
5530   gint new_y;
5531
5532   /* Sanity check it */
5533   if (event->window != tree_view->priv->bin_window)
5534     return FALSE;
5535
5536   if (tree_view->priv->tree == NULL)
5537     return FALSE;
5538
5539   if (event->mode == GDK_CROSSING_GRAB ||
5540       event->mode == GDK_CROSSING_GTK_GRAB ||
5541       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5542       event->mode == GDK_CROSSING_STATE_CHANGED)
5543     return TRUE;
5544
5545   /* find the node internally */
5546   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5547   if (new_y < 0)
5548     new_y = 0;
5549   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5550
5551   tree_view->priv->event_last_x = event->x;
5552   tree_view->priv->event_last_y = event->y;
5553
5554   if ((tree_view->priv->button_pressed_node == NULL) ||
5555       (tree_view->priv->button_pressed_node == node))
5556     prelight_or_select (tree_view, tree, node, event->x, event->y);
5557
5558   return TRUE;
5559 }
5560
5561 static gboolean
5562 gtk_tree_view_leave_notify (GtkWidget        *widget,
5563                             GdkEventCrossing *event)
5564 {
5565   GtkTreeView *tree_view;
5566
5567   if (event->mode == GDK_CROSSING_GRAB)
5568     return TRUE;
5569
5570   tree_view = GTK_TREE_VIEW (widget);
5571
5572   if (tree_view->priv->prelight_node)
5573     _gtk_tree_view_queue_draw_node (tree_view,
5574                                    tree_view->priv->prelight_tree,
5575                                    tree_view->priv->prelight_node,
5576                                    NULL);
5577
5578   tree_view->priv->event_last_x = -10000;
5579   tree_view->priv->event_last_y = -10000;
5580
5581   prelight_or_select (tree_view,
5582                       NULL, NULL,
5583                       -1000, -1000); /* coords not possibly over an arrow */
5584
5585   return TRUE;
5586 }
5587
5588
5589 static gint
5590 gtk_tree_view_focus_out (GtkWidget     *widget,
5591                          GdkEventFocus *event)
5592 {
5593   GtkTreeView *tree_view;
5594
5595   tree_view = GTK_TREE_VIEW (widget);
5596
5597   gtk_widget_queue_draw (widget);
5598
5599   /* destroy interactive search dialog */
5600   if (tree_view->priv->search_window)
5601     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5602
5603   return FALSE;
5604 }
5605
5606
5607 /* Incremental Reflow
5608  */
5609
5610 static void
5611 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5612                                  GtkRBTree   *tree,
5613                                  GtkRBNode   *node)
5614 {
5615   gint y;
5616
5617   y = _gtk_rbtree_node_find_offset (tree, node)
5618     - tree_view->priv->vadjustment->value
5619     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5620
5621   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5622                               0, y,
5623                               GTK_WIDGET (tree_view)->allocation.width,
5624                               GTK_RBNODE_GET_HEIGHT (node));
5625 }
5626
5627 static gboolean
5628 node_is_visible (GtkTreeView *tree_view,
5629                  GtkRBTree   *tree,
5630                  GtkRBNode   *node)
5631 {
5632   int y;
5633   int height;
5634
5635   y = _gtk_rbtree_node_find_offset (tree, node);
5636   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5637
5638   if (y >= tree_view->priv->vadjustment->value &&
5639       y + height <= (tree_view->priv->vadjustment->value
5640                      + tree_view->priv->vadjustment->page_size))
5641     return TRUE;
5642
5643   return FALSE;
5644 }
5645
5646 /* Returns TRUE if it updated the size
5647  */
5648 static gboolean
5649 validate_row (GtkTreeView *tree_view,
5650               GtkRBTree   *tree,
5651               GtkRBNode   *node,
5652               GtkTreeIter *iter,
5653               GtkTreePath *path)
5654 {
5655   GtkTreeViewColumn *column;
5656   GList *list, *first_column, *last_column;
5657   gint height = 0;
5658   gint horizontal_separator;
5659   gint vertical_separator;
5660   gint focus_line_width;
5661   gint depth = gtk_tree_path_get_depth (path);
5662   gboolean retval = FALSE;
5663   gboolean is_separator = FALSE;
5664   gboolean draw_vgrid_lines, draw_hgrid_lines;
5665   gint focus_pad;
5666   gint grid_line_width;
5667   gboolean wide_separators;
5668   gint separator_height;
5669
5670   /* double check the row needs validating */
5671   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5672       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5673     return FALSE;
5674
5675   is_separator = row_is_separator (tree_view, iter, NULL);
5676
5677   gtk_widget_style_get (GTK_WIDGET (tree_view),
5678                         "focus-padding", &focus_pad,
5679                         "focus-line-width", &focus_line_width,
5680                         "horizontal-separator", &horizontal_separator,
5681                         "vertical-separator", &vertical_separator,
5682                         "grid-line-width", &grid_line_width,
5683                         "wide-separators",  &wide_separators,
5684                         "separator-height", &separator_height,
5685                         NULL);
5686
5687   draw_vgrid_lines =
5688     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5689     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5690   draw_hgrid_lines =
5691     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5692     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5693
5694   for (last_column = g_list_last (tree_view->priv->columns);
5695        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5696        last_column = last_column->prev)
5697     ;
5698
5699   for (first_column = g_list_first (tree_view->priv->columns);
5700        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5701        first_column = first_column->next)
5702     ;
5703
5704   for (list = tree_view->priv->columns; list; list = list->next)
5705     {
5706       gint tmp_width;
5707       gint tmp_height;
5708
5709       column = list->data;
5710
5711       if (! column->visible)
5712         continue;
5713
5714       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5715         continue;
5716
5717       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5718                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5719                                                node->children?TRUE:FALSE);
5720       gtk_tree_view_column_cell_get_size (column,
5721                                           NULL, NULL, NULL,
5722                                           &tmp_width, &tmp_height);
5723
5724       if (!is_separator)
5725         {
5726           tmp_height += vertical_separator;
5727           height = MAX (height, tmp_height);
5728           height = MAX (height, tree_view->priv->expander_size);
5729         }
5730       else
5731         {
5732           if (wide_separators)
5733             height = separator_height + 2 * focus_pad;
5734           else
5735             height = 2 + 2 * focus_pad;
5736         }
5737
5738       if (gtk_tree_view_is_expander_column (tree_view, column))
5739         {
5740           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5741
5742           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5743             tmp_width += depth * tree_view->priv->expander_size;
5744         }
5745       else
5746         tmp_width = tmp_width + horizontal_separator;
5747
5748       if (draw_vgrid_lines)
5749         {
5750           if (list->data == first_column || list->data == last_column)
5751             tmp_width += grid_line_width / 2.0;
5752           else
5753             tmp_width += grid_line_width;
5754         }
5755
5756       if (tmp_width > column->requested_width)
5757         {
5758           retval = TRUE;
5759           column->requested_width = tmp_width;
5760         }
5761     }
5762
5763   if (draw_hgrid_lines)
5764     height += grid_line_width;
5765
5766   if (height != GTK_RBNODE_GET_HEIGHT (node))
5767     {
5768       retval = TRUE;
5769       _gtk_rbtree_node_set_height (tree, node, height);
5770     }
5771   _gtk_rbtree_node_mark_valid (tree, node);
5772   tree_view->priv->post_validation_flag = TRUE;
5773
5774   return retval;
5775 }
5776
5777
5778 static void
5779 validate_visible_area (GtkTreeView *tree_view)
5780 {
5781   GtkTreePath *path = NULL;
5782   GtkTreePath *above_path = NULL;
5783   GtkTreeIter iter;
5784   GtkRBTree *tree = NULL;
5785   GtkRBNode *node = NULL;
5786   gboolean need_redraw = FALSE;
5787   gboolean size_changed = FALSE;
5788   gint total_height;
5789   gint area_above = 0;
5790   gint area_below = 0;
5791
5792   if (tree_view->priv->tree == NULL)
5793     return;
5794
5795   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5796       tree_view->priv->scroll_to_path == NULL)
5797     return;
5798
5799   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5800
5801   if (total_height == 0)
5802     return;
5803
5804   /* First, we check to see if we need to scroll anywhere
5805    */
5806   if (tree_view->priv->scroll_to_path)
5807     {
5808       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5809       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5810         {
5811           /* we are going to scroll, and will update dy */
5812           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5813           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5814               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5815             {
5816               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5817               if (validate_row (tree_view, tree, node, &iter, path))
5818                 size_changed = TRUE;
5819             }
5820
5821           if (tree_view->priv->scroll_to_use_align)
5822             {
5823               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5824               area_above = (total_height - height) *
5825                 tree_view->priv->scroll_to_row_align;
5826               area_below = total_height - area_above - height;
5827               area_above = MAX (area_above, 0);
5828               area_below = MAX (area_below, 0);
5829             }
5830           else
5831             {
5832               /* two cases:
5833                * 1) row not visible
5834                * 2) row visible
5835                */
5836               gint dy;
5837               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5838
5839               dy = _gtk_rbtree_node_find_offset (tree, node);
5840
5841               if (dy >= tree_view->priv->vadjustment->value &&
5842                   dy + height <= (tree_view->priv->vadjustment->value
5843                                   + tree_view->priv->vadjustment->page_size))
5844                 {
5845                   /* row visible: keep the row at the same position */
5846                   area_above = dy - tree_view->priv->vadjustment->value;
5847                   area_below = (tree_view->priv->vadjustment->value +
5848                                 tree_view->priv->vadjustment->page_size)
5849                                - dy - height;
5850                 }
5851               else
5852                 {
5853                   /* row not visible */
5854                   if (dy >= 0
5855                       && dy + height <= tree_view->priv->vadjustment->page_size)
5856                     {
5857                       /* row at the beginning -- fixed */
5858                       area_above = dy;
5859                       area_below = tree_view->priv->vadjustment->page_size
5860                                    - area_above - height;
5861                     }
5862                   else if (dy >= (tree_view->priv->vadjustment->upper -
5863                                   tree_view->priv->vadjustment->page_size))
5864                     {
5865                       /* row at the end -- fixed */
5866                       area_above = dy - (tree_view->priv->vadjustment->upper -
5867                                    tree_view->priv->vadjustment->page_size);
5868                       area_below = tree_view->priv->vadjustment->page_size -
5869                                    area_above - height;
5870
5871                       if (area_below < 0)
5872                         {
5873                           area_above = tree_view->priv->vadjustment->page_size - height;
5874                           area_below = 0;
5875                         }
5876                     }
5877                   else
5878                     {
5879                       /* row somewhere in the middle, bring it to the top
5880                        * of the view
5881                        */
5882                       area_above = 0;
5883                       area_below = total_height - height;
5884                     }
5885                 }
5886             }
5887         }
5888       else
5889         /* the scroll to isn't valid; ignore it.
5890          */
5891         {
5892           if (tree_view->priv->scroll_to_path && !path)
5893             {
5894               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5895               tree_view->priv->scroll_to_path = NULL;
5896             }
5897           if (path)
5898             gtk_tree_path_free (path);
5899           path = NULL;
5900         }
5901     }
5902
5903   /* We didn't have a scroll_to set, so we just handle things normally
5904    */
5905   if (path == NULL)
5906     {
5907       gint offset;
5908
5909       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5910                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5911                                         &tree, &node);
5912       if (node == NULL)
5913         {
5914           /* In this case, nothing has been validated */
5915           path = gtk_tree_path_new_first ();
5916           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5917         }
5918       else
5919         {
5920           path = _gtk_tree_view_find_path (tree_view, tree, node);
5921           total_height += offset;
5922         }
5923
5924       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5925
5926       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5927           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5928         {
5929           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5930           if (validate_row (tree_view, tree, node, &iter, path))
5931             size_changed = TRUE;
5932         }
5933       area_above = 0;
5934       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5935     }
5936
5937   above_path = gtk_tree_path_copy (path);
5938
5939   /* if we do not validate any row above the new top_row, we will make sure
5940    * that the row immediately above top_row has been validated. (if we do not
5941    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5942    * when invalidated that row's height will be zero. and this will mess up
5943    * scrolling).
5944    */
5945   if (area_above == 0)
5946     {
5947       GtkRBTree *tmptree;
5948       GtkRBNode *tmpnode;
5949
5950       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5951       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5952
5953       if (tmpnode)
5954         {
5955           GtkTreePath *tmppath;
5956           GtkTreeIter tmpiter;
5957
5958           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5959           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5960
5961           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5962               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5963             {
5964               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5965               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5966                 size_changed = TRUE;
5967             }
5968
5969           gtk_tree_path_free (tmppath);
5970         }
5971     }
5972
5973   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5974    * backwards is much slower then forward, as there is no iter_prev function.
5975    * We go forwards first in case we run out of tree.  Then we go backwards to
5976    * fill out the top.
5977    */
5978   while (node && area_below > 0)
5979     {
5980       if (node->children)
5981         {
5982           GtkTreeIter parent = iter;
5983           gboolean has_child;
5984
5985           tree = node->children;
5986           node = tree->root;
5987
5988           g_assert (node != tree->nil);
5989
5990           while (node->left != tree->nil)
5991             node = node->left;
5992           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5993                                                     &iter,
5994                                                     &parent);
5995           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5996           gtk_tree_path_down (path);
5997         }
5998       else
5999         {
6000           gboolean done = FALSE;
6001           do
6002             {
6003               node = _gtk_rbtree_next (tree, node);
6004               if (node != NULL)
6005                 {
6006                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
6007                   done = TRUE;
6008                   gtk_tree_path_next (path);
6009
6010                   /* Sanity Check! */
6011                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
6012                 }
6013               else
6014                 {
6015                   GtkTreeIter parent_iter = iter;
6016                   gboolean has_parent;
6017
6018                   node = tree->parent_node;
6019                   tree = tree->parent_tree;
6020                   if (tree == NULL)
6021                     break;
6022                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
6023                                                            &iter,
6024                                                            &parent_iter);
6025                   gtk_tree_path_up (path);
6026
6027                   /* Sanity check */
6028                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
6029                 }
6030             }
6031           while (!done);
6032         }
6033
6034       if (!node)
6035         break;
6036
6037       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6038           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6039         {
6040           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6041           if (validate_row (tree_view, tree, node, &iter, path))
6042               size_changed = TRUE;
6043         }
6044
6045       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6046     }
6047   gtk_tree_path_free (path);
6048
6049   /* If we ran out of tree, and have extra area_below left, we need to add it
6050    * to area_above */
6051   if (area_below > 0)
6052     area_above += area_below;
6053
6054   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
6055
6056   /* We walk backwards */
6057   while (area_above > 0)
6058     {
6059       _gtk_rbtree_prev_full (tree, node, &tree, &node);
6060
6061       /* Always find the new path in the tree.  We cannot just assume
6062        * a gtk_tree_path_prev() is enough here, as there might be children
6063        * in between this node and the previous sibling node.  If this
6064        * appears to be a performance hotspot in profiles, we can look into
6065        * intrigate logic for keeping path, node and iter in sync like
6066        * we do for forward walks.  (Which will be hard because of the lacking
6067        * iter_prev).
6068        */
6069
6070       if (node == NULL)
6071         break;
6072
6073       gtk_tree_path_free (above_path);
6074       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6075
6076       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6077
6078       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6079           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6080         {
6081           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6082           if (validate_row (tree_view, tree, node, &iter, above_path))
6083             size_changed = TRUE;
6084         }
6085       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6086     }
6087
6088   /* if we scrolled to a path, we need to set the dy here,
6089    * and sync the top row accordingly
6090    */
6091   if (tree_view->priv->scroll_to_path)
6092     {
6093       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6094       gtk_tree_view_top_row_to_dy (tree_view);
6095
6096       need_redraw = TRUE;
6097     }
6098   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6099     {
6100       /* when we are not scrolling, we should never set dy to something
6101        * else than zero. we update top_row to be in sync with dy = 0.
6102        */
6103       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6104       gtk_tree_view_dy_to_top_row (tree_view);
6105     }
6106   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6107     {
6108       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6109       gtk_tree_view_dy_to_top_row (tree_view);
6110     }
6111   else
6112     gtk_tree_view_top_row_to_dy (tree_view);
6113
6114   /* update width/height and queue a resize */
6115   if (size_changed)
6116     {
6117       GtkRequisition requisition;
6118
6119       /* We temporarily guess a size, under the assumption that it will be the
6120        * same when we get our next size_allocate.  If we don't do this, we'll be
6121        * in an inconsistent state if we call top_row_to_dy. */
6122
6123       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6124       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6125       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6126       gtk_adjustment_changed (tree_view->priv->hadjustment);
6127       gtk_adjustment_changed (tree_view->priv->vadjustment);
6128       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6129     }
6130
6131   if (tree_view->priv->scroll_to_path)
6132     {
6133       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6134       tree_view->priv->scroll_to_path = NULL;
6135     }
6136
6137   if (above_path)
6138     gtk_tree_path_free (above_path);
6139
6140   if (tree_view->priv->scroll_to_column)
6141     {
6142       tree_view->priv->scroll_to_column = NULL;
6143     }
6144   if (need_redraw)
6145     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6146 }
6147
6148 static void
6149 initialize_fixed_height_mode (GtkTreeView *tree_view)
6150 {
6151   if (!tree_view->priv->tree)
6152     return;
6153
6154   if (tree_view->priv->fixed_height < 0)
6155     {
6156       GtkTreeIter iter;
6157       GtkTreePath *path;
6158
6159       GtkRBTree *tree = NULL;
6160       GtkRBNode *node = NULL;
6161
6162       tree = tree_view->priv->tree;
6163       node = tree->root;
6164
6165       path = _gtk_tree_view_find_path (tree_view, tree, node);
6166       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6167
6168       validate_row (tree_view, tree, node, &iter, path);
6169
6170       gtk_tree_path_free (path);
6171
6172       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6173     }
6174
6175    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6176                                  tree_view->priv->fixed_height, TRUE);
6177 }
6178
6179 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6180  * the left-most uninvalidated node.  We then try walking right, validating
6181  * nodes.  Once we find a valid node, we repeat the previous process of finding
6182  * the first invalid node.
6183  */
6184
6185 static gboolean
6186 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6187 {
6188   GtkRBTree *tree = NULL;
6189   GtkRBNode *node = NULL;
6190   gboolean validated_area = FALSE;
6191   gint retval = TRUE;
6192   GtkTreePath *path = NULL;
6193   GtkTreeIter iter;
6194   GTimer *timer;
6195   gint i = 0;
6196
6197   gint prev_height = -1;
6198   gboolean fixed_height = TRUE;
6199
6200   g_assert (tree_view);
6201
6202   if (tree_view->priv->tree == NULL)
6203       return FALSE;
6204
6205   if (tree_view->priv->fixed_height_mode)
6206     {
6207       if (tree_view->priv->fixed_height < 0)
6208         initialize_fixed_height_mode (tree_view);
6209
6210       return FALSE;
6211     }
6212
6213   timer = g_timer_new ();
6214   g_timer_start (timer);
6215
6216   do
6217     {
6218       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6219         {
6220           retval = FALSE;
6221           goto done;
6222         }
6223
6224       if (path != NULL)
6225         {
6226           node = _gtk_rbtree_next (tree, node);
6227           if (node != NULL)
6228             {
6229               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6230               gtk_tree_path_next (path);
6231             }
6232           else
6233             {
6234               gtk_tree_path_free (path);
6235               path = NULL;
6236             }
6237         }
6238
6239       if (path == NULL)
6240         {
6241           tree = tree_view->priv->tree;
6242           node = tree_view->priv->tree->root;
6243
6244           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6245
6246           do
6247             {
6248               if (node->left != tree->nil &&
6249                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6250                 {
6251                   node = node->left;
6252                 }
6253               else if (node->right != tree->nil &&
6254                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6255                 {
6256                   node = node->right;
6257                 }
6258               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6259                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6260                 {
6261                   break;
6262                 }
6263               else if (node->children != NULL)
6264                 {
6265                   tree = node->children;
6266                   node = tree->root;
6267                 }
6268               else
6269                 /* RBTree corruption!  All bad */
6270                 g_assert_not_reached ();
6271             }
6272           while (TRUE);
6273           path = _gtk_tree_view_find_path (tree_view, tree, node);
6274           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6275         }
6276
6277       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6278                        validated_area;
6279
6280       if (!tree_view->priv->fixed_height_check)
6281         {
6282           gint height;
6283
6284           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6285           if (prev_height < 0)
6286             prev_height = height;
6287           else if (prev_height != height)
6288             fixed_height = FALSE;
6289         }
6290
6291       i++;
6292     }
6293   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6294
6295   if (!tree_view->priv->fixed_height_check)
6296    {
6297      if (fixed_height)
6298        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6299
6300      tree_view->priv->fixed_height_check = 1;
6301    }
6302
6303  done:
6304   if (validated_area)
6305     {
6306       GtkRequisition requisition;
6307       /* We temporarily guess a size, under the assumption that it will be the
6308        * same when we get our next size_allocate.  If we don't do this, we'll be
6309        * in an inconsistent state when we call top_row_to_dy. */
6310
6311       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6312       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6313       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6314       gtk_adjustment_changed (tree_view->priv->hadjustment);
6315       gtk_adjustment_changed (tree_view->priv->vadjustment);
6316
6317       if (queue_resize)
6318         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6319     }
6320
6321   if (path) gtk_tree_path_free (path);
6322   g_timer_destroy (timer);
6323
6324   return retval;
6325 }
6326
6327 static gboolean
6328 validate_rows (GtkTreeView *tree_view)
6329 {
6330   gboolean retval;
6331
6332   retval = do_validate_rows (tree_view, TRUE);
6333
6334   if (! retval && tree_view->priv->validate_rows_timer)
6335     {
6336       g_source_remove (tree_view->priv->validate_rows_timer);
6337       tree_view->priv->validate_rows_timer = 0;
6338     }
6339
6340   return retval;
6341 }
6342
6343 static gboolean
6344 validate_rows_handler (GtkTreeView *tree_view)
6345 {
6346   gboolean retval;
6347
6348   retval = do_validate_rows (tree_view, TRUE);
6349   if (! retval && tree_view->priv->validate_rows_timer)
6350     {
6351       g_source_remove (tree_view->priv->validate_rows_timer);
6352       tree_view->priv->validate_rows_timer = 0;
6353     }
6354
6355   return retval;
6356 }
6357
6358 static gboolean
6359 do_presize_handler (GtkTreeView *tree_view)
6360 {
6361   if (tree_view->priv->mark_rows_col_dirty)
6362     {
6363       if (tree_view->priv->tree)
6364         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6365       tree_view->priv->mark_rows_col_dirty = FALSE;
6366     }
6367   validate_visible_area (tree_view);
6368   tree_view->priv->presize_handler_timer = 0;
6369
6370   if (tree_view->priv->fixed_height_mode)
6371     {
6372       GtkRequisition requisition;
6373
6374       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6375
6376       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6377       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6378       gtk_adjustment_changed (tree_view->priv->hadjustment);
6379       gtk_adjustment_changed (tree_view->priv->vadjustment);
6380       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6381     }
6382
6383   return FALSE;
6384 }
6385
6386 static gboolean
6387 presize_handler_callback (gpointer data)
6388 {
6389   do_presize_handler (GTK_TREE_VIEW (data));
6390
6391   return FALSE;
6392 }
6393
6394 static void
6395 install_presize_handler (GtkTreeView *tree_view)
6396 {
6397   if (! GTK_WIDGET_REALIZED (tree_view))
6398     return;
6399
6400   if (! tree_view->priv->presize_handler_timer)
6401     {
6402       tree_view->priv->presize_handler_timer =
6403         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6404     }
6405   if (! tree_view->priv->validate_rows_timer)
6406     {
6407       tree_view->priv->validate_rows_timer =
6408         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6409     }
6410 }
6411
6412 static gboolean
6413 scroll_sync_handler (GtkTreeView *tree_view)
6414 {
6415   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6416     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6417   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6418     gtk_tree_view_top_row_to_dy (tree_view);
6419   else
6420     gtk_tree_view_dy_to_top_row (tree_view);
6421
6422   tree_view->priv->scroll_sync_timer = 0;
6423
6424   return FALSE;
6425 }
6426
6427 static void
6428 install_scroll_sync_handler (GtkTreeView *tree_view)
6429 {
6430   if (! GTK_WIDGET_REALIZED (tree_view))
6431     return;
6432
6433   if (!tree_view->priv->scroll_sync_timer)
6434     {
6435       tree_view->priv->scroll_sync_timer =
6436         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6437     }
6438 }
6439
6440 static void
6441 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6442                            GtkTreePath *path,
6443                            gint         offset)
6444 {
6445   gtk_tree_row_reference_free (tree_view->priv->top_row);
6446
6447   if (!path)
6448     {
6449       tree_view->priv->top_row = NULL;
6450       tree_view->priv->top_row_dy = 0;
6451     }
6452   else
6453     {
6454       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6455       tree_view->priv->top_row_dy = offset;
6456     }
6457 }
6458
6459 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6460  * it's set to be NULL, and top_row_dy is 0;
6461  */
6462 static void
6463 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6464 {
6465   gint offset;
6466   GtkTreePath *path;
6467   GtkRBTree *tree;
6468   GtkRBNode *node;
6469
6470   if (tree_view->priv->tree == NULL)
6471     {
6472       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6473     }
6474   else
6475     {
6476       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6477                                         tree_view->priv->dy,
6478                                         &tree, &node);
6479
6480       if (tree == NULL)
6481         {
6482           gtk_tree_view_set_top_row (tree_view, NULL, 0);
6483         }
6484       else
6485         {
6486           path = _gtk_tree_view_find_path (tree_view, tree, node);
6487           gtk_tree_view_set_top_row (tree_view, path, offset);
6488           gtk_tree_path_free (path);
6489         }
6490     }
6491 }
6492
6493 static void
6494 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6495 {
6496   GtkTreePath *path;
6497   GtkRBTree *tree;
6498   GtkRBNode *node;
6499   int new_dy;
6500
6501   /* Avoid recursive calls */
6502   if (tree_view->priv->in_top_row_to_dy)
6503     return;
6504
6505   if (tree_view->priv->top_row)
6506     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6507   else
6508     path = NULL;
6509
6510   if (!path)
6511     tree = NULL;
6512   else
6513     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6514
6515   if (path)
6516     gtk_tree_path_free (path);
6517
6518   if (tree == NULL)
6519     {
6520       /* keep dy and set new toprow */
6521       gtk_tree_row_reference_free (tree_view->priv->top_row);
6522       tree_view->priv->top_row = NULL;
6523       tree_view->priv->top_row_dy = 0;
6524       /* DO NOT install the idle handler */
6525       gtk_tree_view_dy_to_top_row (tree_view);
6526       return;
6527     }
6528
6529   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6530       < tree_view->priv->top_row_dy)
6531     {
6532       /* new top row -- do NOT install the idle handler */
6533       gtk_tree_view_dy_to_top_row (tree_view);
6534       return;
6535     }
6536
6537   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6538   new_dy += tree_view->priv->top_row_dy;
6539
6540   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6541     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6542
6543   new_dy = MAX (0, new_dy);
6544
6545   tree_view->priv->in_top_row_to_dy = TRUE;
6546   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6547   tree_view->priv->in_top_row_to_dy = FALSE;
6548 }
6549
6550
6551 void
6552 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6553 {
6554   tree_view->priv->mark_rows_col_dirty = TRUE;
6555
6556   install_presize_handler (tree_view);
6557 }
6558
6559 /*
6560  * This function works synchronously (due to the while (validate_rows...)
6561  * loop).
6562  *
6563  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6564  * here. You now need to check that yourself.
6565  */
6566 void
6567 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6568                                 GtkTreeViewColumn *column)
6569 {
6570   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6571   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6572
6573   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6574
6575   do_presize_handler (tree_view);
6576   while (validate_rows (tree_view));
6577
6578   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6579 }
6580
6581 /* Drag-and-drop */
6582
6583 static void
6584 set_source_row (GdkDragContext *context,
6585                 GtkTreeModel   *model,
6586                 GtkTreePath    *source_row)
6587 {
6588   g_object_set_data_full (G_OBJECT (context),
6589                           I_("gtk-tree-view-source-row"),
6590                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6591                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6592 }
6593
6594 static GtkTreePath*
6595 get_source_row (GdkDragContext *context)
6596 {
6597   GtkTreeRowReference *ref =
6598     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6599
6600   if (ref)
6601     return gtk_tree_row_reference_get_path (ref);
6602   else
6603     return NULL;
6604 }
6605
6606 typedef struct
6607 {
6608   GtkTreeRowReference *dest_row;
6609   guint                path_down_mode   : 1;
6610   guint                empty_view_drop  : 1;
6611   guint                drop_append_mode : 1;
6612 }
6613 DestRow;
6614
6615 static void
6616 dest_row_free (gpointer data)
6617 {
6618   DestRow *dr = (DestRow *)data;
6619
6620   gtk_tree_row_reference_free (dr->dest_row);
6621   g_slice_free (DestRow, dr);
6622 }
6623
6624 static void
6625 set_dest_row (GdkDragContext *context,
6626               GtkTreeModel   *model,
6627               GtkTreePath    *dest_row,
6628               gboolean        path_down_mode,
6629               gboolean        empty_view_drop,
6630               gboolean        drop_append_mode)
6631 {
6632   DestRow *dr;
6633
6634   if (!dest_row)
6635     {
6636       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6637                               NULL, NULL);
6638       return;
6639     }
6640
6641   dr = g_slice_new (DestRow);
6642
6643   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6644   dr->path_down_mode = path_down_mode != FALSE;
6645   dr->empty_view_drop = empty_view_drop != FALSE;
6646   dr->drop_append_mode = drop_append_mode != FALSE;
6647
6648   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6649                           dr, (GDestroyNotify) dest_row_free);
6650 }
6651
6652 static GtkTreePath*
6653 get_dest_row (GdkDragContext *context,
6654               gboolean       *path_down_mode)
6655 {
6656   DestRow *dr =
6657     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6658
6659   if (dr)
6660     {
6661       GtkTreePath *path = NULL;
6662
6663       if (path_down_mode)
6664         *path_down_mode = dr->path_down_mode;
6665
6666       if (dr->dest_row)
6667         path = gtk_tree_row_reference_get_path (dr->dest_row);
6668       else if (dr->empty_view_drop)
6669         path = gtk_tree_path_new_from_indices (0, -1);
6670       else
6671         path = NULL;
6672
6673       if (path && dr->drop_append_mode)
6674         gtk_tree_path_next (path);
6675
6676       return path;
6677     }
6678   else
6679     return NULL;
6680 }
6681
6682 /* Get/set whether drag_motion requested the drag data and
6683  * drag_data_received should thus not actually insert the data,
6684  * since the data doesn't result from a drop.
6685  */
6686 static void
6687 set_status_pending (GdkDragContext *context,
6688                     GdkDragAction   suggested_action)
6689 {
6690   g_object_set_data (G_OBJECT (context),
6691                      I_("gtk-tree-view-status-pending"),
6692                      GINT_TO_POINTER (suggested_action));
6693 }
6694
6695 static GdkDragAction
6696 get_status_pending (GdkDragContext *context)
6697 {
6698   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6699                                              "gtk-tree-view-status-pending"));
6700 }
6701
6702 static TreeViewDragInfo*
6703 get_info (GtkTreeView *tree_view)
6704 {
6705   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6706 }
6707
6708 static void
6709 destroy_info (TreeViewDragInfo *di)
6710 {
6711   g_slice_free (TreeViewDragInfo, di);
6712 }
6713
6714 static TreeViewDragInfo*
6715 ensure_info (GtkTreeView *tree_view)
6716 {
6717   TreeViewDragInfo *di;
6718
6719   di = get_info (tree_view);
6720
6721   if (di == NULL)
6722     {
6723       di = g_slice_new0 (TreeViewDragInfo);
6724
6725       g_object_set_data_full (G_OBJECT (tree_view),
6726                               I_("gtk-tree-view-drag-info"),
6727                               di,
6728                               (GDestroyNotify) destroy_info);
6729     }
6730
6731   return di;
6732 }
6733
6734 static void
6735 remove_info (GtkTreeView *tree_view)
6736 {
6737   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6738 }
6739
6740 #if 0
6741 static gint
6742 drag_scan_timeout (gpointer data)
6743 {
6744   GtkTreeView *tree_view;
6745   gint x, y;
6746   GdkModifierType state;
6747   GtkTreePath *path = NULL;
6748   GtkTreeViewColumn *column = NULL;
6749   GdkRectangle visible_rect;
6750
6751   GDK_THREADS_ENTER ();
6752
6753   tree_view = GTK_TREE_VIEW (data);
6754
6755   gdk_window_get_pointer (tree_view->priv->bin_window,
6756                           &x, &y, &state);
6757
6758   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6759
6760   /* See if we are near the edge. */
6761   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6762       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6763       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6764       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6765     {
6766       gtk_tree_view_get_path_at_pos (tree_view,
6767                                      tree_view->priv->bin_window,
6768                                      x, y,
6769                                      &path,
6770                                      &column,
6771                                      NULL,
6772                                      NULL);
6773
6774       if (path != NULL)
6775         {
6776           gtk_tree_view_scroll_to_cell (tree_view,
6777                                         path,
6778                                         column,
6779                                         TRUE,
6780                                         0.5, 0.5);
6781
6782           gtk_tree_path_free (path);
6783         }
6784     }
6785
6786   GDK_THREADS_LEAVE ();
6787
6788   return TRUE;
6789 }
6790 #endif /* 0 */
6791
6792 static void
6793 add_scroll_timeout (GtkTreeView *tree_view)
6794 {
6795   if (tree_view->priv->scroll_timeout == 0)
6796     {
6797       tree_view->priv->scroll_timeout =
6798         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6799     }
6800 }
6801
6802 static void
6803 remove_scroll_timeout (GtkTreeView *tree_view)
6804 {
6805   if (tree_view->priv->scroll_timeout != 0)
6806     {
6807       g_source_remove (tree_view->priv->scroll_timeout);
6808       tree_view->priv->scroll_timeout = 0;
6809     }
6810 }
6811
6812 static gboolean
6813 check_model_dnd (GtkTreeModel *model,
6814                  GType         required_iface,
6815                  const gchar  *signal)
6816 {
6817   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6818     {
6819       g_warning ("You must override the default '%s' handler "
6820                  "on GtkTreeView when using models that don't support "
6821                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6822                  "is to connect to '%s' and call "
6823                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6824                  "the default handler from running. Look at the source code "
6825                  "for the default handler in gtktreeview.c to get an idea what "
6826                  "your handler should do. (gtktreeview.c is in the GTK source "
6827                  "code.) If you're using GTK from a language other than C, "
6828                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6829                  signal, g_type_name (required_iface), signal);
6830       return FALSE;
6831     }
6832   else
6833     return TRUE;
6834 }
6835
6836 static void
6837 remove_open_timeout (GtkTreeView *tree_view)
6838 {
6839   if (tree_view->priv->open_dest_timeout != 0)
6840     {
6841       g_source_remove (tree_view->priv->open_dest_timeout);
6842       tree_view->priv->open_dest_timeout = 0;
6843     }
6844 }
6845
6846
6847 static gint
6848 open_row_timeout (gpointer data)
6849 {
6850   GtkTreeView *tree_view = data;
6851   GtkTreePath *dest_path = NULL;
6852   GtkTreeViewDropPosition pos;
6853   gboolean result = FALSE;
6854
6855   gtk_tree_view_get_drag_dest_row (tree_view,
6856                                    &dest_path,
6857                                    &pos);
6858
6859   if (dest_path &&
6860       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6861        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6862     {
6863       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6864       tree_view->priv->open_dest_timeout = 0;
6865
6866       gtk_tree_path_free (dest_path);
6867     }
6868   else
6869     {
6870       if (dest_path)
6871         gtk_tree_path_free (dest_path);
6872
6873       result = TRUE;
6874     }
6875
6876   return result;
6877 }
6878
6879 static gboolean
6880 scroll_row_timeout (gpointer data)
6881 {
6882   GtkTreeView *tree_view = data;
6883
6884   gtk_tree_view_vertical_autoscroll (tree_view);
6885
6886   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6887     gtk_tree_view_update_rubber_band (tree_view);
6888
6889   return TRUE;
6890 }
6891
6892 /* Returns TRUE if event should not be propagated to parent widgets */
6893 static gboolean
6894 set_destination_row (GtkTreeView    *tree_view,
6895                      GdkDragContext *context,
6896                      /* coordinates relative to the widget */
6897                      gint            x,
6898                      gint            y,
6899                      GdkDragAction  *suggested_action,
6900                      GdkAtom        *target)
6901 {
6902   GtkTreePath *path = NULL;
6903   GtkTreeViewDropPosition pos;
6904   GtkTreeViewDropPosition old_pos;
6905   TreeViewDragInfo *di;
6906   GtkWidget *widget;
6907   GtkTreePath *old_dest_path = NULL;
6908   gboolean can_drop = FALSE;
6909
6910   *suggested_action = 0;
6911   *target = GDK_NONE;
6912
6913   widget = GTK_WIDGET (tree_view);
6914
6915   di = get_info (tree_view);
6916
6917   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6918     {
6919       /* someone unset us as a drag dest, note that if
6920        * we return FALSE drag_leave isn't called
6921        */
6922
6923       gtk_tree_view_set_drag_dest_row (tree_view,
6924                                        NULL,
6925                                        GTK_TREE_VIEW_DROP_BEFORE);
6926
6927       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6928       remove_open_timeout (GTK_TREE_VIEW (widget));
6929
6930       return FALSE; /* no longer a drop site */
6931     }
6932
6933   *target = gtk_drag_dest_find_target (widget, context,
6934                                        gtk_drag_dest_get_target_list (widget));
6935   if (*target == GDK_NONE)
6936     {
6937       return FALSE;
6938     }
6939
6940   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6941                                           x, y,
6942                                           &path,
6943                                           &pos))
6944     {
6945       gint n_children;
6946       GtkTreeModel *model;
6947
6948       remove_open_timeout (tree_view);
6949
6950       /* the row got dropped on empty space, let's setup a special case
6951        */
6952
6953       if (path)
6954         gtk_tree_path_free (path);
6955
6956       model = gtk_tree_view_get_model (tree_view);
6957
6958       n_children = gtk_tree_model_iter_n_children (model, NULL);
6959       if (n_children)
6960         {
6961           pos = GTK_TREE_VIEW_DROP_AFTER;
6962           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6963         }
6964       else
6965         {
6966           pos = GTK_TREE_VIEW_DROP_BEFORE;
6967           path = gtk_tree_path_new_from_indices (0, -1);
6968         }
6969
6970       can_drop = TRUE;
6971
6972       goto out;
6973     }
6974
6975   g_assert (path);
6976
6977   /* If we left the current row's "open" zone, unset the timeout for
6978    * opening the row
6979    */
6980   gtk_tree_view_get_drag_dest_row (tree_view,
6981                                    &old_dest_path,
6982                                    &old_pos);
6983
6984   if (old_dest_path &&
6985       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6986        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6987          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6988     remove_open_timeout (tree_view);
6989
6990   if (old_dest_path)
6991     gtk_tree_path_free (old_dest_path);
6992
6993   if (TRUE /* FIXME if the location droppable predicate */)
6994     {
6995       can_drop = TRUE;
6996     }
6997
6998 out:
6999   if (can_drop)
7000     {
7001       GtkWidget *source_widget;
7002
7003       *suggested_action = context->suggested_action;
7004       source_widget = gtk_drag_get_source_widget (context);
7005
7006       if (source_widget == widget)
7007         {
7008           /* Default to MOVE, unless the user has
7009            * pressed ctrl or shift to affect available actions
7010            */
7011           if ((context->actions & GDK_ACTION_MOVE) != 0)
7012             *suggested_action = GDK_ACTION_MOVE;
7013         }
7014
7015       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7016                                        path, pos);
7017     }
7018   else
7019     {
7020       /* can't drop here */
7021       remove_open_timeout (tree_view);
7022
7023       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7024                                        NULL,
7025                                        GTK_TREE_VIEW_DROP_BEFORE);
7026     }
7027
7028   if (path)
7029     gtk_tree_path_free (path);
7030
7031   return TRUE;
7032 }
7033
7034 static GtkTreePath*
7035 get_logical_dest_row (GtkTreeView *tree_view,
7036                       gboolean    *path_down_mode,
7037                       gboolean    *drop_append_mode)
7038 {
7039   /* adjust path to point to the row the drop goes in front of */
7040   GtkTreePath *path = NULL;
7041   GtkTreeViewDropPosition pos;
7042
7043   g_return_val_if_fail (path_down_mode != NULL, NULL);
7044   g_return_val_if_fail (drop_append_mode != NULL, NULL);
7045
7046   *path_down_mode = FALSE;
7047   *drop_append_mode = 0;
7048
7049   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7050
7051   if (path == NULL)
7052     return NULL;
7053
7054   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
7055     ; /* do nothing */
7056   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
7057            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
7058     *path_down_mode = TRUE;
7059   else
7060     {
7061       GtkTreeIter iter;
7062       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
7063
7064       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
7065
7066       if (!gtk_tree_model_get_iter (model, &iter, path) ||
7067           !gtk_tree_model_iter_next (model, &iter))
7068         *drop_append_mode = 1;
7069       else
7070         {
7071           *drop_append_mode = 0;
7072           gtk_tree_path_next (path);
7073         }
7074     }
7075
7076   return path;
7077 }
7078
7079 static gboolean
7080 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7081                                         GdkEventMotion   *event)
7082 {
7083   GtkWidget *widget = GTK_WIDGET (tree_view);
7084   GdkDragContext *context;
7085   TreeViewDragInfo *di;
7086   GtkTreePath *path = NULL;
7087   gint button;
7088   gint cell_x, cell_y;
7089   GtkTreeModel *model;
7090   gboolean retval = FALSE;
7091
7092   di = get_info (tree_view);
7093
7094   if (di == NULL || !di->source_set)
7095     goto out;
7096
7097   if (tree_view->priv->pressed_button < 0)
7098     goto out;
7099
7100   if (!gtk_drag_check_threshold (widget,
7101                                  tree_view->priv->press_start_x,
7102                                  tree_view->priv->press_start_y,
7103                                  event->x, event->y))
7104     goto out;
7105
7106   model = gtk_tree_view_get_model (tree_view);
7107
7108   if (model == NULL)
7109     goto out;
7110
7111   button = tree_view->priv->pressed_button;
7112   tree_view->priv->pressed_button = -1;
7113
7114   gtk_tree_view_get_path_at_pos (tree_view,
7115                                  tree_view->priv->press_start_x,
7116                                  tree_view->priv->press_start_y,
7117                                  &path,
7118                                  NULL,
7119                                  &cell_x,
7120                                  &cell_y);
7121
7122   if (path == NULL)
7123     goto out;
7124
7125   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7126       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7127                                            path))
7128     goto out;
7129
7130   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7131     goto out;
7132
7133   /* Now we can begin the drag */
7134
7135   retval = TRUE;
7136
7137   context = gtk_drag_begin (widget,
7138                             gtk_drag_source_get_target_list (widget),
7139                             di->source_actions,
7140                             button,
7141                             (GdkEvent*)event);
7142
7143   set_source_row (context, model, path);
7144
7145  out:
7146   if (path)
7147     gtk_tree_path_free (path);
7148
7149   return retval;
7150 }
7151
7152
7153 static void
7154 gtk_tree_view_drag_begin (GtkWidget      *widget,
7155                           GdkDragContext *context)
7156 {
7157   GtkTreeView *tree_view;
7158   GtkTreePath *path = NULL;
7159   gint cell_x, cell_y;
7160   GdkPixmap *row_pix;
7161   TreeViewDragInfo *di;
7162
7163   tree_view = GTK_TREE_VIEW (widget);
7164
7165   /* if the user uses a custom DND source impl, we don't set the icon here */
7166   di = get_info (tree_view);
7167
7168   if (di == NULL || !di->source_set)
7169     return;
7170
7171   gtk_tree_view_get_path_at_pos (tree_view,
7172                                  tree_view->priv->press_start_x,
7173                                  tree_view->priv->press_start_y,
7174                                  &path,
7175                                  NULL,
7176                                  &cell_x,
7177                                  &cell_y);
7178
7179   g_return_if_fail (path != NULL);
7180
7181   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7182                                                 path);
7183
7184   gtk_drag_set_icon_pixmap (context,
7185                             gdk_drawable_get_colormap (row_pix),
7186                             row_pix,
7187                             NULL,
7188                             /* the + 1 is for the black border in the icon */
7189                             tree_view->priv->press_start_x + 1,
7190                             cell_y + 1);
7191
7192   g_object_unref (row_pix);
7193   gtk_tree_path_free (path);
7194 }
7195
7196 static void
7197 gtk_tree_view_drag_end (GtkWidget      *widget,
7198                         GdkDragContext *context)
7199 {
7200   /* do nothing */
7201 }
7202
7203 /* Default signal implementations for the drag signals */
7204 static void
7205 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7206                              GdkDragContext   *context,
7207                              GtkSelectionData *selection_data,
7208                              guint             info,
7209                              guint             time)
7210 {
7211   GtkTreeView *tree_view;
7212   GtkTreeModel *model;
7213   TreeViewDragInfo *di;
7214   GtkTreePath *source_row;
7215
7216   tree_view = GTK_TREE_VIEW (widget);
7217
7218   model = gtk_tree_view_get_model (tree_view);
7219
7220   if (model == NULL)
7221     return;
7222
7223   di = get_info (GTK_TREE_VIEW (widget));
7224
7225   if (di == NULL)
7226     return;
7227
7228   source_row = get_source_row (context);
7229
7230   if (source_row == NULL)
7231     return;
7232
7233   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7234    * any model; for DragSource models there are some other targets
7235    * we also support.
7236    */
7237
7238   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7239       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7240                                           source_row,
7241                                           selection_data))
7242     goto done;
7243
7244   /* If drag_data_get does nothing, try providing row data. */
7245   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7246     {
7247       gtk_tree_set_row_drag_data (selection_data,
7248                                   model,
7249                                   source_row);
7250     }
7251
7252  done:
7253   gtk_tree_path_free (source_row);
7254 }
7255
7256
7257 static void
7258 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7259                                 GdkDragContext *context)
7260 {
7261   TreeViewDragInfo *di;
7262   GtkTreeModel *model;
7263   GtkTreeView *tree_view;
7264   GtkTreePath *source_row;
7265
7266   tree_view = GTK_TREE_VIEW (widget);
7267   model = gtk_tree_view_get_model (tree_view);
7268
7269   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7270     return;
7271
7272   di = get_info (tree_view);
7273
7274   if (di == NULL)
7275     return;
7276
7277   source_row = get_source_row (context);
7278
7279   if (source_row == NULL)
7280     return;
7281
7282   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7283                                          source_row);
7284
7285   gtk_tree_path_free (source_row);
7286
7287   set_source_row (context, NULL, NULL);
7288 }
7289
7290 static void
7291 gtk_tree_view_drag_leave (GtkWidget      *widget,
7292                           GdkDragContext *context,
7293                           guint             time)
7294 {
7295   /* unset any highlight row */
7296   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7297                                    NULL,
7298                                    GTK_TREE_VIEW_DROP_BEFORE);
7299
7300   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7301   remove_open_timeout (GTK_TREE_VIEW (widget));
7302 }
7303
7304
7305 static gboolean
7306 gtk_tree_view_drag_motion (GtkWidget        *widget,
7307                            GdkDragContext   *context,
7308                            /* coordinates relative to the widget */
7309                            gint              x,
7310                            gint              y,
7311                            guint             time)
7312 {
7313   gboolean empty;
7314   GtkTreePath *path = NULL;
7315   GtkTreeViewDropPosition pos;
7316   GtkTreeView *tree_view;
7317   GdkDragAction suggested_action = 0;
7318   GdkAtom target;
7319
7320   tree_view = GTK_TREE_VIEW (widget);
7321
7322   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7323     return FALSE;
7324
7325   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7326
7327   /* we only know this *after* set_desination_row */
7328   empty = tree_view->priv->empty_view_drop;
7329
7330   if (path == NULL && !empty)
7331     {
7332       /* Can't drop here. */
7333       gdk_drag_status (context, 0, time);
7334     }
7335   else
7336     {
7337       if (tree_view->priv->open_dest_timeout == 0 &&
7338           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7339            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7340         {
7341           tree_view->priv->open_dest_timeout =
7342             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7343         }
7344       else
7345         {
7346           add_scroll_timeout (tree_view);
7347         }
7348
7349       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7350         {
7351           /* Request data so we can use the source row when
7352            * determining whether to accept the drop
7353            */
7354           set_status_pending (context, suggested_action);
7355           gtk_drag_get_data (widget, context, target, time);
7356         }
7357       else
7358         {
7359           set_status_pending (context, 0);
7360           gdk_drag_status (context, suggested_action, time);
7361         }
7362     }
7363
7364   if (path)
7365     gtk_tree_path_free (path);
7366
7367   return TRUE;
7368 }
7369
7370
7371 static gboolean
7372 gtk_tree_view_drag_drop (GtkWidget        *widget,
7373                          GdkDragContext   *context,
7374                          /* coordinates relative to the widget */
7375                          gint              x,
7376                          gint              y,
7377                          guint             time)
7378 {
7379   GtkTreeView *tree_view;
7380   GtkTreePath *path;
7381   GdkDragAction suggested_action = 0;
7382   GdkAtom target = GDK_NONE;
7383   TreeViewDragInfo *di;
7384   GtkTreeModel *model;
7385   gboolean path_down_mode;
7386   gboolean drop_append_mode;
7387
7388   tree_view = GTK_TREE_VIEW (widget);
7389
7390   model = gtk_tree_view_get_model (tree_view);
7391
7392   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7393   remove_open_timeout (GTK_TREE_VIEW (widget));
7394
7395   di = get_info (tree_view);
7396
7397   if (di == NULL)
7398     return FALSE;
7399
7400   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7401     return FALSE;
7402
7403   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7404     return FALSE;
7405
7406   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7407
7408   if (target != GDK_NONE && path != NULL)
7409     {
7410       /* in case a motion had requested drag data, change things so we
7411        * treat drag data receives as a drop.
7412        */
7413       set_status_pending (context, 0);
7414       set_dest_row (context, model, path,
7415                     path_down_mode, tree_view->priv->empty_view_drop,
7416                     drop_append_mode);
7417     }
7418
7419   if (path)
7420     gtk_tree_path_free (path);
7421
7422   /* Unset this thing */
7423   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7424                                    NULL,
7425                                    GTK_TREE_VIEW_DROP_BEFORE);
7426
7427   if (target != GDK_NONE)
7428     {
7429       gtk_drag_get_data (widget, context, target, time);
7430       return TRUE;
7431     }
7432   else
7433     return FALSE;
7434 }
7435
7436 static void
7437 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7438                                   GdkDragContext   *context,
7439                                   /* coordinates relative to the widget */
7440                                   gint              x,
7441                                   gint              y,
7442                                   GtkSelectionData *selection_data,
7443                                   guint             info,
7444                                   guint             time)
7445 {
7446   GtkTreePath *path;
7447   TreeViewDragInfo *di;
7448   gboolean accepted = FALSE;
7449   GtkTreeModel *model;
7450   GtkTreeView *tree_view;
7451   GtkTreePath *dest_row;
7452   GdkDragAction suggested_action;
7453   gboolean path_down_mode;
7454   gboolean drop_append_mode;
7455
7456   tree_view = GTK_TREE_VIEW (widget);
7457
7458   model = gtk_tree_view_get_model (tree_view);
7459
7460   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7461     return;
7462
7463   di = get_info (tree_view);
7464
7465   if (di == NULL)
7466     return;
7467
7468   suggested_action = get_status_pending (context);
7469
7470   if (suggested_action)
7471     {
7472       /* We are getting this data due to a request in drag_motion,
7473        * rather than due to a request in drag_drop, so we are just
7474        * supposed to call drag_status, not actually paste in the
7475        * data.
7476        */
7477       path = get_logical_dest_row (tree_view, &path_down_mode,
7478                                    &drop_append_mode);
7479
7480       if (path == NULL)
7481         suggested_action = 0;
7482       else if (path_down_mode)
7483         gtk_tree_path_down (path);
7484
7485       if (suggested_action)
7486         {
7487           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7488                                                      path,
7489                                                      selection_data))
7490             {
7491               if (path_down_mode)
7492                 {
7493                   path_down_mode = FALSE;
7494                   gtk_tree_path_up (path);
7495
7496                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7497                                                              path,
7498                                                              selection_data))
7499                     suggested_action = 0;
7500                 }
7501               else
7502                 suggested_action = 0;
7503             }
7504         }
7505
7506       gdk_drag_status (context, suggested_action, time);
7507
7508       if (path)
7509         gtk_tree_path_free (path);
7510
7511       /* If you can't drop, remove user drop indicator until the next motion */
7512       if (suggested_action == 0)
7513         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7514                                          NULL,
7515                                          GTK_TREE_VIEW_DROP_BEFORE);
7516
7517       return;
7518     }
7519
7520   dest_row = get_dest_row (context, &path_down_mode);
7521
7522   if (dest_row == NULL)
7523     return;
7524
7525   if (selection_data->length >= 0)
7526     {
7527       if (path_down_mode)
7528         {
7529           gtk_tree_path_down (dest_row);
7530           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7531                                                      dest_row, selection_data))
7532             gtk_tree_path_up (dest_row);
7533         }
7534     }
7535
7536   if (selection_data->length >= 0)
7537     {
7538       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7539                                                  dest_row,
7540                                                  selection_data))
7541         accepted = TRUE;
7542     }
7543
7544   gtk_drag_finish (context,
7545                    accepted,
7546                    (context->action == GDK_ACTION_MOVE),
7547                    time);
7548
7549   if (gtk_tree_path_get_depth (dest_row) == 1
7550       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7551     {
7552       /* special special case drag to "0", scroll to first item */
7553       if (!tree_view->priv->scroll_to_path)
7554         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7555     }
7556
7557   gtk_tree_path_free (dest_row);
7558
7559   /* drop dest_row */
7560   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7561 }
7562
7563
7564
7565 /* GtkContainer Methods
7566  */
7567
7568
7569 static void
7570 gtk_tree_view_remove (GtkContainer *container,
7571                       GtkWidget    *widget)
7572 {
7573   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7574   GtkTreeViewChild *child = NULL;
7575   GList *tmp_list;
7576
7577   tmp_list = tree_view->priv->children;
7578   while (tmp_list)
7579     {
7580       child = tmp_list->data;
7581       if (child->widget == widget)
7582         {
7583           gtk_widget_unparent (widget);
7584
7585           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7586           g_list_free_1 (tmp_list);
7587           g_slice_free (GtkTreeViewChild, child);
7588           return;
7589         }
7590
7591       tmp_list = tmp_list->next;
7592     }
7593
7594   tmp_list = tree_view->priv->columns;
7595
7596   while (tmp_list)
7597     {
7598       GtkTreeViewColumn *column;
7599       column = tmp_list->data;
7600       if (column->button == widget)
7601         {
7602           gtk_widget_unparent (widget);
7603           return;
7604         }
7605       tmp_list = tmp_list->next;
7606     }
7607 }
7608
7609 static void
7610 gtk_tree_view_forall (GtkContainer *container,
7611                       gboolean      include_internals,
7612                       GtkCallback   callback,
7613                       gpointer      callback_data)
7614 {
7615   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7616   GtkTreeViewChild *child = NULL;
7617   GtkTreeViewColumn *column;
7618   GList *tmp_list;
7619
7620   tmp_list = tree_view->priv->children;
7621   while (tmp_list)
7622     {
7623       child = tmp_list->data;
7624       tmp_list = tmp_list->next;
7625
7626       (* callback) (child->widget, callback_data);
7627     }
7628   if (include_internals == FALSE)
7629     return;
7630
7631   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7632     {
7633       column = tmp_list->data;
7634
7635       if (column->button)
7636         (* callback) (column->button, callback_data);
7637     }
7638 }
7639
7640 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7641  * cells. If so we draw one big row-spanning focus rectangle.
7642  */
7643 static gboolean
7644 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7645 {
7646   GList *list;
7647
7648   for (list = tree_view->priv->columns; list; list = list->next)
7649     {
7650       if (!((GtkTreeViewColumn *)list->data)->visible)
7651         continue;
7652       if (_gtk_tree_view_column_count_special_cells (list->data))
7653         return TRUE;
7654     }
7655
7656   return FALSE;
7657 }
7658
7659 static void
7660 column_sizing_notify (GObject    *object,
7661                       GParamSpec *pspec,
7662                       gpointer    data)
7663 {
7664   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7665
7666   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7667     /* disable fixed height mode */
7668     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7669 }
7670
7671 /**
7672  * gtk_tree_view_set_fixed_height_mode:
7673  * @tree_view: a #GtkTreeView
7674  * @enable: %TRUE to enable fixed height mode
7675  *
7676  * Enables or disables the fixed height mode of @tree_view.
7677  * Fixed height mode speeds up #GtkTreeView by assuming that all
7678  * rows have the same height.
7679  * Only enable this option if all rows are the same height and all
7680  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7681  *
7682  * Since: 2.6
7683  **/
7684 void
7685 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7686                                      gboolean     enable)
7687 {
7688   GList *l;
7689
7690   enable = enable != FALSE;
7691
7692   if (enable == tree_view->priv->fixed_height_mode)
7693     return;
7694
7695   if (!enable)
7696     {
7697       tree_view->priv->fixed_height_mode = 0;
7698       tree_view->priv->fixed_height = -1;
7699
7700       /* force a revalidation */
7701       install_presize_handler (tree_view);
7702     }
7703   else
7704     {
7705       /* make sure all columns are of type FIXED */
7706       for (l = tree_view->priv->columns; l; l = l->next)
7707         {
7708           GtkTreeViewColumn *c = l->data;
7709
7710           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7711         }
7712
7713       /* yes, we really have to do this is in a separate loop */
7714       for (l = tree_view->priv->columns; l; l = l->next)
7715         g_signal_connect (l->data, "notify::sizing",
7716                           G_CALLBACK (column_sizing_notify), tree_view);
7717
7718       tree_view->priv->fixed_height_mode = 1;
7719       tree_view->priv->fixed_height = -1;
7720
7721       if (tree_view->priv->tree)
7722         initialize_fixed_height_mode (tree_view);
7723     }
7724
7725   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7726 }
7727
7728 /**
7729  * gtk_tree_view_get_fixed_height_mode:
7730  * @tree_view: a #GtkTreeView
7731  *
7732  * Returns whether fixed height mode is turned on for @tree_view.
7733  *
7734  * Return value: %TRUE if @tree_view is in fixed height mode
7735  *
7736  * Since: 2.6
7737  **/
7738 gboolean
7739 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7740 {
7741   return tree_view->priv->fixed_height_mode;
7742 }
7743
7744 /* Returns TRUE if the focus is within the headers, after the focus operation is
7745  * done
7746  */
7747 static gboolean
7748 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7749                             GtkDirectionType  dir,
7750                             gboolean          clamp_column_visible)
7751 {
7752   GtkWidget *focus_child;
7753
7754   GList *last_column, *first_column;
7755   GList *tmp_list;
7756   gboolean rtl;
7757
7758   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7759     return FALSE;
7760
7761   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7762
7763   first_column = tree_view->priv->columns;
7764   while (first_column)
7765     {
7766       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7767           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7768           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7769            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7770         break;
7771       first_column = first_column->next;
7772     }
7773
7774   /* No headers are visible, or are focusable.  We can't focus in or out.
7775    */
7776   if (first_column == NULL)
7777     return FALSE;
7778
7779   last_column = g_list_last (tree_view->priv->columns);
7780   while (last_column)
7781     {
7782       if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7783           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7784           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7785            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7786         break;
7787       last_column = last_column->prev;
7788     }
7789
7790
7791   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7792
7793   switch (dir)
7794     {
7795     case GTK_DIR_TAB_BACKWARD:
7796     case GTK_DIR_TAB_FORWARD:
7797     case GTK_DIR_UP:
7798     case GTK_DIR_DOWN:
7799       if (focus_child == NULL)
7800         {
7801           if (tree_view->priv->focus_column != NULL &&
7802               gtk_widget_get_can_focus (tree_view->priv->focus_column->button))
7803             focus_child = tree_view->priv->focus_column->button;
7804           else
7805             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7806           gtk_widget_grab_focus (focus_child);
7807           break;
7808         }
7809       return FALSE;
7810
7811     case GTK_DIR_LEFT:
7812     case GTK_DIR_RIGHT:
7813       if (focus_child == NULL)
7814         {
7815           if (tree_view->priv->focus_column != NULL)
7816             focus_child = tree_view->priv->focus_column->button;
7817           else if (dir == GTK_DIR_LEFT)
7818             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7819           else
7820             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7821           gtk_widget_grab_focus (focus_child);
7822           break;
7823         }
7824
7825       if (gtk_widget_child_focus (focus_child, dir))
7826         {
7827           /* The focus moves inside the button. */
7828           /* This is probably a great example of bad UI */
7829           break;
7830         }
7831
7832       /* We need to move the focus among the row of buttons. */
7833       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7834         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7835           break;
7836
7837       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7838           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7839         {
7840           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7841           break;
7842         }
7843
7844       while (tmp_list)
7845         {
7846           GtkTreeViewColumn *column;
7847
7848           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7849             tmp_list = tmp_list->next;
7850           else
7851             tmp_list = tmp_list->prev;
7852
7853           if (tmp_list == NULL)
7854             {
7855               g_warning ("Internal button not found");
7856               break;
7857             }
7858           column = tmp_list->data;
7859           if (column->button &&
7860               column->visible &&
7861               gtk_widget_get_can_focus (column->button))
7862             {
7863               focus_child = column->button;
7864               gtk_widget_grab_focus (column->button);
7865               break;
7866             }
7867         }
7868       break;
7869     default:
7870       g_assert_not_reached ();
7871       break;
7872     }
7873
7874   /* if focus child is non-null, we assume it's been set to the current focus child
7875    */
7876   if (focus_child)
7877     {
7878       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7879         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7880           {
7881             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7882             break;
7883           }
7884
7885       if (clamp_column_visible)
7886         {
7887           gtk_tree_view_clamp_column_visible (tree_view,
7888                                               tree_view->priv->focus_column,
7889                                               FALSE);
7890         }
7891     }
7892
7893   return (focus_child != NULL);
7894 }
7895
7896 /* This function returns in 'path' the first focusable path, if the given path
7897  * is already focusable, it's the returned one.
7898  */
7899 static gboolean
7900 search_first_focusable_path (GtkTreeView  *tree_view,
7901                              GtkTreePath **path,
7902                              gboolean      search_forward,
7903                              GtkRBTree   **new_tree,
7904                              GtkRBNode   **new_node)
7905 {
7906   GtkRBTree *tree = NULL;
7907   GtkRBNode *node = NULL;
7908
7909   if (!path || !*path)
7910     return FALSE;
7911
7912   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7913
7914   if (!tree || !node)
7915     return FALSE;
7916
7917   while (node && row_is_separator (tree_view, NULL, *path))
7918     {
7919       if (search_forward)
7920         _gtk_rbtree_next_full (tree, node, &tree, &node);
7921       else
7922         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7923
7924       if (*path)
7925         gtk_tree_path_free (*path);
7926
7927       if (node)
7928         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7929       else
7930         *path = NULL;
7931     }
7932
7933   if (new_tree)
7934     *new_tree = tree;
7935
7936   if (new_node)
7937     *new_node = node;
7938
7939   return (*path != NULL);
7940 }
7941
7942 static gint
7943 gtk_tree_view_focus (GtkWidget        *widget,
7944                      GtkDirectionType  direction)
7945 {
7946   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7947   GtkContainer *container = GTK_CONTAINER (widget);
7948   GtkWidget *focus_child;
7949
7950   if (!GTK_WIDGET_IS_SENSITIVE (container) || !gtk_widget_get_can_focus (widget))
7951     return FALSE;
7952
7953   focus_child = container->focus_child;
7954
7955   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7956   /* Case 1.  Headers currently have focus. */
7957   if (focus_child)
7958     {
7959       switch (direction)
7960         {
7961         case GTK_DIR_LEFT:
7962         case GTK_DIR_RIGHT:
7963           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7964           return TRUE;
7965         case GTK_DIR_TAB_BACKWARD:
7966         case GTK_DIR_UP:
7967           return FALSE;
7968         case GTK_DIR_TAB_FORWARD:
7969         case GTK_DIR_DOWN:
7970           gtk_widget_grab_focus (widget);
7971           return TRUE;
7972         default:
7973           g_assert_not_reached ();
7974           return FALSE;
7975         }
7976     }
7977
7978   /* Case 2. We don't have focus at all. */
7979   if (!GTK_WIDGET_HAS_FOCUS (container))
7980     {
7981       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7982         gtk_widget_grab_focus (widget);
7983       return TRUE;
7984     }
7985
7986   /* Case 3. We have focus already. */
7987   if (direction == GTK_DIR_TAB_BACKWARD)
7988     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7989   else if (direction == GTK_DIR_TAB_FORWARD)
7990     return FALSE;
7991
7992   /* Other directions caught by the keybindings */
7993   gtk_widget_grab_focus (widget);
7994   return TRUE;
7995 }
7996
7997 static void
7998 gtk_tree_view_grab_focus (GtkWidget *widget)
7999 {
8000   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
8001
8002   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
8003 }
8004
8005 static void
8006 gtk_tree_view_style_set (GtkWidget *widget,
8007                          GtkStyle *previous_style)
8008 {
8009   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
8010   GList *list;
8011   GtkTreeViewColumn *column;
8012
8013   if (GTK_WIDGET_REALIZED (widget))
8014     {
8015       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
8016       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
8017       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
8018
8019       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
8020       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
8021     }
8022
8023   gtk_widget_style_get (widget,
8024                         "expander-size", &tree_view->priv->expander_size,
8025                         NULL);
8026   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
8027
8028   for (list = tree_view->priv->columns; list; list = list->next)
8029     {
8030       column = list->data;
8031       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8032     }
8033
8034   tree_view->priv->fixed_height = -1;
8035   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
8036
8037   gtk_widget_queue_resize (widget);
8038 }
8039
8040
8041 static void
8042 gtk_tree_view_set_focus_child (GtkContainer *container,
8043                                GtkWidget    *child)
8044 {
8045   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
8046   GList *list;
8047
8048   for (list = tree_view->priv->columns; list; list = list->next)
8049     {
8050       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
8051         {
8052           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
8053           break;
8054         }
8055     }
8056
8057   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
8058 }
8059
8060 static void
8061 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
8062                                GtkAdjustment *hadj,
8063                                GtkAdjustment *vadj)
8064 {
8065   gboolean need_adjust = FALSE;
8066
8067   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8068
8069   if (hadj)
8070     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8071   else
8072     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8073   if (vadj)
8074     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8075   else
8076     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8077
8078   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8079     {
8080       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8081                                             gtk_tree_view_adjustment_changed,
8082                                             tree_view);
8083       g_object_unref (tree_view->priv->hadjustment);
8084     }
8085
8086   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8087     {
8088       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8089                                             gtk_tree_view_adjustment_changed,
8090                                             tree_view);
8091       g_object_unref (tree_view->priv->vadjustment);
8092     }
8093
8094   if (tree_view->priv->hadjustment != hadj)
8095     {
8096       tree_view->priv->hadjustment = hadj;
8097       g_object_ref_sink (tree_view->priv->hadjustment);
8098
8099       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8100                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8101                         tree_view);
8102       need_adjust = TRUE;
8103     }
8104
8105   if (tree_view->priv->vadjustment != vadj)
8106     {
8107       tree_view->priv->vadjustment = vadj;
8108       g_object_ref_sink (tree_view->priv->vadjustment);
8109
8110       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8111                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8112                         tree_view);
8113       need_adjust = TRUE;
8114     }
8115
8116   if (need_adjust)
8117     gtk_tree_view_adjustment_changed (NULL, tree_view);
8118 }
8119
8120
8121 static gboolean
8122 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8123                                 GtkMovementStep    step,
8124                                 gint               count)
8125 {
8126   GdkModifierType state;
8127
8128   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8129   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8130                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8131                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8132                         step == GTK_MOVEMENT_PAGES ||
8133                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8134
8135   if (tree_view->priv->tree == NULL)
8136     return FALSE;
8137   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8138     return FALSE;
8139
8140   gtk_tree_view_stop_editing (tree_view, FALSE);
8141   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8142   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8143
8144   if (gtk_get_current_event_state (&state))
8145     {
8146       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8147         tree_view->priv->ctrl_pressed = TRUE;
8148       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8149         tree_view->priv->shift_pressed = TRUE;
8150     }
8151   /* else we assume not pressed */
8152
8153   switch (step)
8154     {
8155       /* currently we make no distinction.  When we go bi-di, we need to */
8156     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8157     case GTK_MOVEMENT_VISUAL_POSITIONS:
8158       gtk_tree_view_move_cursor_left_right (tree_view, count);
8159       break;
8160     case GTK_MOVEMENT_DISPLAY_LINES:
8161       gtk_tree_view_move_cursor_up_down (tree_view, count);
8162       break;
8163     case GTK_MOVEMENT_PAGES:
8164       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8165       break;
8166     case GTK_MOVEMENT_BUFFER_ENDS:
8167       gtk_tree_view_move_cursor_start_end (tree_view, count);
8168       break;
8169     default:
8170       g_assert_not_reached ();
8171     }
8172
8173   tree_view->priv->ctrl_pressed = FALSE;
8174   tree_view->priv->shift_pressed = FALSE;
8175
8176   return TRUE;
8177 }
8178
8179 static void
8180 gtk_tree_view_put (GtkTreeView *tree_view,
8181                    GtkWidget   *child_widget,
8182                    /* in bin_window coordinates */
8183                    gint         x,
8184                    gint         y,
8185                    gint         width,
8186                    gint         height)
8187 {
8188   GtkTreeViewChild *child;
8189
8190   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8191   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8192
8193   child = g_slice_new (GtkTreeViewChild);
8194
8195   child->widget = child_widget;
8196   child->x = x;
8197   child->y = y;
8198   child->width = width;
8199   child->height = height;
8200
8201   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8202
8203   if (GTK_WIDGET_REALIZED (tree_view))
8204     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8205
8206   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8207 }
8208
8209 void
8210 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8211                                   GtkWidget   *widget,
8212                                   /* in tree coordinates */
8213                                   gint         x,
8214                                   gint         y,
8215                                   gint         width,
8216                                   gint         height)
8217 {
8218   GtkTreeViewChild *child = NULL;
8219   GList *list;
8220   GdkRectangle allocation;
8221
8222   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8223   g_return_if_fail (GTK_IS_WIDGET (widget));
8224
8225   for (list = tree_view->priv->children; list; list = list->next)
8226     {
8227       if (((GtkTreeViewChild *)list->data)->widget == widget)
8228         {
8229           child = list->data;
8230           break;
8231         }
8232     }
8233   if (child == NULL)
8234     return;
8235
8236   allocation.x = child->x = x;
8237   allocation.y = child->y = y;
8238   allocation.width = child->width = width;
8239   allocation.height = child->height = height;
8240
8241   if (GTK_WIDGET_REALIZED (widget))
8242     gtk_widget_size_allocate (widget, &allocation);
8243 }
8244
8245
8246 /* TreeModel Callbacks
8247  */
8248
8249 static void
8250 gtk_tree_view_row_changed (GtkTreeModel *model,
8251                            GtkTreePath  *path,
8252                            GtkTreeIter  *iter,
8253                            gpointer      data)
8254 {
8255   GtkTreeView *tree_view = (GtkTreeView *)data;
8256   GtkRBTree *tree;
8257   GtkRBNode *node;
8258   gboolean free_path = FALSE;
8259   GList *list;
8260   GtkTreePath *cursor_path;
8261
8262   g_return_if_fail (path != NULL || iter != NULL);
8263
8264   if (tree_view->priv->cursor != NULL)
8265     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8266   else
8267     cursor_path = NULL;
8268
8269   if (tree_view->priv->edited_column &&
8270       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8271     gtk_tree_view_stop_editing (tree_view, TRUE);
8272
8273   if (cursor_path != NULL)
8274     gtk_tree_path_free (cursor_path);
8275
8276   if (path == NULL)
8277     {
8278       path = gtk_tree_model_get_path (model, iter);
8279       free_path = TRUE;
8280     }
8281   else if (iter == NULL)
8282     gtk_tree_model_get_iter (model, iter, path);
8283
8284   if (_gtk_tree_view_find_node (tree_view,
8285                                 path,
8286                                 &tree,
8287                                 &node))
8288     /* We aren't actually showing the node */
8289     goto done;
8290
8291   if (tree == NULL)
8292     goto done;
8293
8294   if (tree_view->priv->fixed_height_mode
8295       && tree_view->priv->fixed_height >= 0)
8296     {
8297       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8298       if (GTK_WIDGET_REALIZED (tree_view))
8299         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8300     }
8301   else
8302     {
8303       _gtk_rbtree_node_mark_invalid (tree, node);
8304       for (list = tree_view->priv->columns; list; list = list->next)
8305         {
8306           GtkTreeViewColumn *column;
8307
8308           column = list->data;
8309           if (! column->visible)
8310             continue;
8311
8312           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8313             {
8314               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8315             }
8316         }
8317     }
8318
8319  done:
8320   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8321     install_presize_handler (tree_view);
8322   if (free_path)
8323     gtk_tree_path_free (path);
8324 }
8325
8326 static void
8327 gtk_tree_view_row_inserted (GtkTreeModel *model,
8328                             GtkTreePath  *path,
8329                             GtkTreeIter  *iter,
8330                             gpointer      data)
8331 {
8332   GtkTreeView *tree_view = (GtkTreeView *) data;
8333   gint *indices;
8334   GtkRBTree *tmptree, *tree;
8335   GtkRBNode *tmpnode = NULL;
8336   gint depth;
8337   gint i = 0;
8338   gint height;
8339   gboolean free_path = FALSE;
8340   gboolean node_visible = TRUE;
8341
8342   g_return_if_fail (path != NULL || iter != NULL);
8343
8344   if (tree_view->priv->fixed_height_mode
8345       && tree_view->priv->fixed_height >= 0)
8346     height = tree_view->priv->fixed_height;
8347   else
8348     height = 0;
8349
8350   if (path == NULL)
8351     {
8352       path = gtk_tree_model_get_path (model, iter);
8353       free_path = TRUE;
8354     }
8355   else if (iter == NULL)
8356     gtk_tree_model_get_iter (model, iter, path);
8357
8358   if (tree_view->priv->tree == NULL)
8359     tree_view->priv->tree = _gtk_rbtree_new ();
8360
8361   tmptree = tree = tree_view->priv->tree;
8362
8363   /* Update all row-references */
8364   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8365   depth = gtk_tree_path_get_depth (path);
8366   indices = gtk_tree_path_get_indices (path);
8367
8368   /* First, find the parent tree */
8369   while (i < depth - 1)
8370     {
8371       if (tmptree == NULL)
8372         {
8373           /* We aren't showing the node */
8374           node_visible = FALSE;
8375           goto done;
8376         }
8377
8378       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8379       if (tmpnode == NULL)
8380         {
8381           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8382                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8383                      "before the parent was inserted.");
8384           goto done;
8385         }
8386       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8387         {
8388           /* FIXME enforce correct behavior on model, probably */
8389           /* In theory, the model should have emitted has_child_toggled here.  We
8390            * try to catch it anyway, just to be safe, in case the model hasn't.
8391            */
8392           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8393                                                            tree,
8394                                                            tmpnode);
8395           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8396           gtk_tree_path_free (tmppath);
8397           goto done;
8398         }
8399
8400       tmptree = tmpnode->children;
8401       tree = tmptree;
8402       i++;
8403     }
8404
8405   if (tree == NULL)
8406     {
8407       node_visible = FALSE;
8408       goto done;
8409     }
8410
8411   /* ref the node */
8412   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8413   if (indices[depth - 1] == 0)
8414     {
8415       tmpnode = _gtk_rbtree_find_count (tree, 1);
8416       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8417     }
8418   else
8419     {
8420       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8421       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8422     }
8423
8424  done:
8425   if (height > 0)
8426     {
8427       if (tree)
8428         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8429
8430       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8431         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8432       else
8433         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8434     }
8435   else
8436     install_presize_handler (tree_view);
8437   if (free_path)
8438     gtk_tree_path_free (path);
8439 }
8440
8441 static void
8442 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8443                                      GtkTreePath  *path,
8444                                      GtkTreeIter  *iter,
8445                                      gpointer      data)
8446 {
8447   GtkTreeView *tree_view = (GtkTreeView *)data;
8448   GtkTreeIter real_iter;
8449   gboolean has_child;
8450   GtkRBTree *tree;
8451   GtkRBNode *node;
8452   gboolean free_path = FALSE;
8453
8454   g_return_if_fail (path != NULL || iter != NULL);
8455
8456   if (iter)
8457     real_iter = *iter;
8458
8459   if (path == NULL)
8460     {
8461       path = gtk_tree_model_get_path (model, iter);
8462       free_path = TRUE;
8463     }
8464   else if (iter == NULL)
8465     gtk_tree_model_get_iter (model, &real_iter, path);
8466
8467   if (_gtk_tree_view_find_node (tree_view,
8468                                 path,
8469                                 &tree,
8470                                 &node))
8471     /* We aren't actually showing the node */
8472     goto done;
8473
8474   if (tree == NULL)
8475     goto done;
8476
8477   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8478   /* Sanity check.
8479    */
8480   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8481     goto done;
8482
8483   if (has_child)
8484     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8485   else
8486     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8487
8488   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8489     {
8490       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8491       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8492         {
8493           GList *list;
8494
8495           for (list = tree_view->priv->columns; list; list = list->next)
8496             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8497               {
8498                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8499                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8500                 break;
8501               }
8502         }
8503       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8504     }
8505   else
8506     {
8507       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8508     }
8509
8510  done:
8511   if (free_path)
8512     gtk_tree_path_free (path);
8513 }
8514
8515 static void
8516 count_children_helper (GtkRBTree *tree,
8517                        GtkRBNode *node,
8518                        gpointer   data)
8519 {
8520   if (node->children)
8521     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8522   (*((gint *)data))++;
8523 }
8524
8525 static void
8526 check_selection_helper (GtkRBTree *tree,
8527                         GtkRBNode *node,
8528                         gpointer   data)
8529 {
8530   gint *value = (gint *)data;
8531
8532   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8533
8534   if (node->children && !*value)
8535     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8536 }
8537
8538 static void
8539 gtk_tree_view_row_deleted (GtkTreeModel *model,
8540                            GtkTreePath  *path,
8541                            gpointer      data)
8542 {
8543   GtkTreeView *tree_view = (GtkTreeView *)data;
8544   GtkRBTree *tree;
8545   GtkRBNode *node;
8546   GList *list;
8547   gint selection_changed = FALSE;
8548
8549   g_return_if_fail (path != NULL);
8550
8551   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8552
8553   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8554     return;
8555
8556   if (tree == NULL)
8557     return;
8558
8559   /* check if the selection has been changed */
8560   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8561                         check_selection_helper, &selection_changed);
8562
8563   for (list = tree_view->priv->columns; list; list = list->next)
8564     if (((GtkTreeViewColumn *)list->data)->visible &&
8565         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8566       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8567
8568   /* Ensure we don't have a dangling pointer to a dead node */
8569   ensure_unprelighted (tree_view);
8570
8571   /* Cancel editting if we've started */
8572   gtk_tree_view_stop_editing (tree_view, TRUE);
8573
8574   /* If we have a node expanded/collapsed timeout, remove it */
8575   remove_expand_collapse_timeout (tree_view);
8576
8577   if (tree_view->priv->destroy_count_func)
8578     {
8579       gint child_count = 0;
8580       if (node->children)
8581         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8582       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8583     }
8584
8585   if (tree->root->count == 1)
8586     {
8587       if (tree_view->priv->tree == tree)
8588         tree_view->priv->tree = NULL;
8589
8590       _gtk_rbtree_remove (tree);
8591     }
8592   else
8593     {
8594       _gtk_rbtree_remove_node (tree, node);
8595     }
8596
8597   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8598     {
8599       gtk_tree_row_reference_free (tree_view->priv->top_row);
8600       tree_view->priv->top_row = NULL;
8601     }
8602
8603   install_scroll_sync_handler (tree_view);
8604
8605   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8606
8607   if (selection_changed)
8608     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8609 }
8610
8611 static void
8612 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8613                               GtkTreePath  *parent,
8614                               GtkTreeIter  *iter,
8615                               gint         *new_order,
8616                               gpointer      data)
8617 {
8618   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8619   GtkRBTree *tree;
8620   GtkRBNode *node;
8621   gint len;
8622
8623   len = gtk_tree_model_iter_n_children (model, iter);
8624
8625   if (len < 2)
8626     return;
8627
8628   gtk_tree_row_reference_reordered (G_OBJECT (data),
8629                                     parent,
8630                                     iter,
8631                                     new_order);
8632
8633   if (_gtk_tree_view_find_node (tree_view,
8634                                 parent,
8635                                 &tree,
8636                                 &node))
8637     return;
8638
8639   /* We need to special case the parent path */
8640   if (tree == NULL)
8641     tree = tree_view->priv->tree;
8642   else
8643     tree = node->children;
8644
8645   if (tree == NULL)
8646     return;
8647
8648   if (tree_view->priv->edited_column)
8649     gtk_tree_view_stop_editing (tree_view, TRUE);
8650
8651   /* we need to be unprelighted */
8652   ensure_unprelighted (tree_view);
8653
8654   /* clear the timeout */
8655   cancel_arrow_animation (tree_view);
8656
8657   _gtk_rbtree_reorder (tree, new_order, len);
8658
8659   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8660
8661   gtk_tree_view_dy_to_top_row (tree_view);
8662 }
8663
8664
8665 /* Internal tree functions
8666  */
8667
8668
8669 static void
8670 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8671                                      GtkRBTree         *tree,
8672                                      GtkTreeViewColumn *column,
8673                                      gint              *x1,
8674                                      gint              *x2)
8675 {
8676   GtkTreeViewColumn *tmp_column = NULL;
8677   gint total_width;
8678   GList *list;
8679   gboolean rtl;
8680
8681   if (x1)
8682     *x1 = 0;
8683
8684   if (x2)
8685     *x2 = 0;
8686
8687   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8688
8689   total_width = 0;
8690   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8691        list;
8692        list = (rtl ? list->prev : list->next))
8693     {
8694       tmp_column = list->data;
8695
8696       if (tmp_column == column)
8697         break;
8698
8699       if (tmp_column->visible)
8700         total_width += tmp_column->width;
8701     }
8702
8703   if (tmp_column != column)
8704     {
8705       g_warning (G_STRLOC": passed-in column isn't in the tree");
8706       return;
8707     }
8708
8709   if (x1)
8710     *x1 = total_width;
8711
8712   if (x2)
8713     {
8714       if (column->visible)
8715         *x2 = total_width + column->width;
8716       else
8717         *x2 = total_width; /* width of 0 */
8718     }
8719 }
8720 static void
8721 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8722                                 GtkRBTree   *tree,
8723                                 gint        *x1,
8724                                 gint        *x2)
8725 {
8726   gint x_offset = 0;
8727   GList *list;
8728   GtkTreeViewColumn *tmp_column = NULL;
8729   gint total_width;
8730   gboolean indent_expanders;
8731   gboolean rtl;
8732
8733   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8734
8735   total_width = 0;
8736   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8737        list;
8738        list = (rtl ? list->prev : list->next))
8739     {
8740       tmp_column = list->data;
8741
8742       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8743         {
8744           if (rtl)
8745             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8746           else
8747             x_offset = total_width;
8748           break;
8749         }
8750
8751       if (tmp_column->visible)
8752         total_width += tmp_column->width;
8753     }
8754
8755   gtk_widget_style_get (GTK_WIDGET (tree_view),
8756                         "indent-expanders", &indent_expanders,
8757                         NULL);
8758
8759   if (indent_expanders)
8760     {
8761       if (rtl)
8762         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8763       else
8764         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8765     }
8766
8767   *x1 = x_offset;
8768
8769   if (tmp_column && tmp_column->visible)
8770     /* +1 because x2 isn't included in the range. */
8771     *x2 = *x1 + tree_view->priv->expander_size + 1;
8772   else
8773     *x2 = *x1;
8774 }
8775
8776 static void
8777 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8778                           GtkRBTree   *tree,
8779                           GtkTreeIter *iter,
8780                           gint         depth,
8781                           gboolean     recurse)
8782 {
8783   GtkRBNode *temp = NULL;
8784   GtkTreePath *path = NULL;
8785   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8786
8787   do
8788     {
8789       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8790       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8791
8792       if (tree_view->priv->fixed_height > 0)
8793         {
8794           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8795             {
8796               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8797               _gtk_rbtree_node_mark_valid (tree, temp);
8798             }
8799         }
8800
8801       if (is_list)
8802         continue;
8803
8804       if (recurse)
8805         {
8806           GtkTreeIter child;
8807
8808           if (!path)
8809             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8810           else
8811             gtk_tree_path_next (path);
8812
8813           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8814             {
8815               gboolean expand;
8816
8817               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8818
8819               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8820                   && !expand)
8821                 {
8822                   temp->children = _gtk_rbtree_new ();
8823                   temp->children->parent_tree = tree;
8824                   temp->children->parent_node = temp;
8825                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8826                 }
8827             }
8828         }
8829
8830       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8831         {
8832           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8833             temp->flags ^= GTK_RBNODE_IS_PARENT;
8834         }
8835     }
8836   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8837
8838   if (path)
8839     gtk_tree_path_free (path);
8840 }
8841
8842 /* Make sure the node is visible vertically */
8843 static void
8844 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8845                                   GtkRBTree   *tree,
8846                                   GtkRBNode   *node)
8847 {
8848   gint node_dy, height;
8849   GtkTreePath *path = NULL;
8850
8851   if (!GTK_WIDGET_REALIZED (tree_view))
8852     return;
8853
8854   /* just return if the node is visible, avoiding a costly expose */
8855   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8856   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8857   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8858       && node_dy >= tree_view->priv->vadjustment->value
8859       && node_dy + height <= (tree_view->priv->vadjustment->value
8860                               + tree_view->priv->vadjustment->page_size))
8861     return;
8862
8863   path = _gtk_tree_view_find_path (tree_view, tree, node);
8864   if (path)
8865     {
8866       /* We process updates because we want to clear old selected items when we scroll.
8867        * if this is removed, we get a "selection streak" at the bottom. */
8868       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8869       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8870       gtk_tree_path_free (path);
8871     }
8872 }
8873
8874 static void
8875 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8876                                     GtkTreeViewColumn *column,
8877                                     gboolean           focus_to_cell)
8878 {
8879   gint x, width;
8880
8881   if (column == NULL)
8882     return;
8883
8884   x = column->button->allocation.x;
8885   width = column->button->allocation.width;
8886
8887   if (width > tree_view->priv->hadjustment->page_size)
8888     {
8889       /* The column is larger than the horizontal page size.  If the
8890        * column has cells which can be focussed individually, then we make
8891        * sure the cell which gets focus is fully visible (if even the
8892        * focus cell is bigger than the page size, we make sure the
8893        * left-hand side of the cell is visible).
8894        *
8895        * If the column does not have those so-called special cells, we
8896        * make sure the left-hand side of the column is visible.
8897        */
8898
8899       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8900         {
8901           GtkTreePath *cursor_path;
8902           GdkRectangle background_area, cell_area, focus_area;
8903
8904           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8905
8906           gtk_tree_view_get_cell_area (tree_view,
8907                                        cursor_path, column, &cell_area);
8908           gtk_tree_view_get_background_area (tree_view,
8909                                              cursor_path, column,
8910                                              &background_area);
8911
8912           gtk_tree_path_free (cursor_path);
8913
8914           _gtk_tree_view_column_get_focus_area (column,
8915                                                 &background_area,
8916                                                 &cell_area,
8917                                                 &focus_area);
8918
8919           x = focus_area.x;
8920           width = focus_area.width;
8921
8922           if (width < tree_view->priv->hadjustment->page_size)
8923             {
8924               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8925                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8926                                           x + width - tree_view->priv->hadjustment->page_size);
8927               else if (tree_view->priv->hadjustment->value > x)
8928                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8929             }
8930         }
8931
8932       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8933                                 CLAMP (x,
8934                                        tree_view->priv->hadjustment->lower,
8935                                        tree_view->priv->hadjustment->upper
8936                                        - tree_view->priv->hadjustment->page_size));
8937     }
8938   else
8939     {
8940       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8941           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8942                                     x + width - tree_view->priv->hadjustment->page_size);
8943       else if (tree_view->priv->hadjustment->value > x)
8944         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8945   }
8946 }
8947
8948 /* This function could be more efficient.  I'll optimize it if profiling seems
8949  * to imply that it is important */
8950 GtkTreePath *
8951 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8952                           GtkRBTree   *tree,
8953                           GtkRBNode   *node)
8954 {
8955   GtkTreePath *path;
8956   GtkRBTree *tmp_tree;
8957   GtkRBNode *tmp_node, *last;
8958   gint count;
8959
8960   path = gtk_tree_path_new ();
8961
8962   g_return_val_if_fail (node != NULL, path);
8963   g_return_val_if_fail (node != tree->nil, path);
8964
8965   count = 1 + node->left->count;
8966
8967   last = node;
8968   tmp_node = node->parent;
8969   tmp_tree = tree;
8970   while (tmp_tree)
8971     {
8972       while (tmp_node != tmp_tree->nil)
8973         {
8974           if (tmp_node->right == last)
8975             count += 1 + tmp_node->left->count;
8976           last = tmp_node;
8977           tmp_node = tmp_node->parent;
8978         }
8979       gtk_tree_path_prepend_index (path, count - 1);
8980       last = tmp_tree->parent_node;
8981       tmp_tree = tmp_tree->parent_tree;
8982       if (last)
8983         {
8984           count = 1 + last->left->count;
8985           tmp_node = last->parent;
8986         }
8987     }
8988   return path;
8989 }
8990
8991 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8992  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8993  * both set to NULL.
8994  */
8995 gboolean
8996 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
8997                           GtkTreePath  *path,
8998                           GtkRBTree   **tree,
8999                           GtkRBNode   **node)
9000 {
9001   GtkRBNode *tmpnode = NULL;
9002   GtkRBTree *tmptree = tree_view->priv->tree;
9003   gint *indices = gtk_tree_path_get_indices (path);
9004   gint depth = gtk_tree_path_get_depth (path);
9005   gint i = 0;
9006
9007   *node = NULL;
9008   *tree = NULL;
9009
9010   if (depth == 0 || tmptree == NULL)
9011     return FALSE;
9012   do
9013     {
9014       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9015       ++i;
9016       if (tmpnode == NULL)
9017         {
9018           *tree = NULL;
9019           *node = NULL;
9020           return FALSE;
9021         }
9022       if (i >= depth)
9023         {
9024           *tree = tmptree;
9025           *node = tmpnode;
9026           return FALSE;
9027         }
9028       *tree = tmptree;
9029       *node = tmpnode;
9030       tmptree = tmpnode->children;
9031       if (tmptree == NULL)
9032         return TRUE;
9033     }
9034   while (1);
9035 }
9036
9037 static gboolean
9038 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9039                                   GtkTreeViewColumn *column)
9040 {
9041   GList *list;
9042
9043   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9044     return FALSE;
9045
9046   if (tree_view->priv->expander_column != NULL)
9047     {
9048       if (tree_view->priv->expander_column == column)
9049         return TRUE;
9050       return FALSE;
9051     }
9052   else
9053     {
9054       for (list = tree_view->priv->columns;
9055            list;
9056            list = list->next)
9057         if (((GtkTreeViewColumn *)list->data)->visible)
9058           break;
9059       if (list && list->data == column)
9060         return TRUE;
9061     }
9062   return FALSE;
9063 }
9064
9065 static void
9066 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9067                                 guint           keyval,
9068                                 guint           modmask,
9069                                 gboolean        add_shifted_binding,
9070                                 GtkMovementStep step,
9071                                 gint            count)
9072 {
9073
9074   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9075                                 "move-cursor", 2,
9076                                 G_TYPE_ENUM, step,
9077                                 G_TYPE_INT, count);
9078
9079   if (add_shifted_binding)
9080     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9081                                   "move-cursor", 2,
9082                                   G_TYPE_ENUM, step,
9083                                   G_TYPE_INT, count);
9084
9085   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9086    return;
9087
9088   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9089                                 "move-cursor", 2,
9090                                 G_TYPE_ENUM, step,
9091                                 G_TYPE_INT, count);
9092
9093   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9094                                 "move-cursor", 2,
9095                                 G_TYPE_ENUM, step,
9096                                 G_TYPE_INT, count);
9097 }
9098
9099 static gint
9100 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9101                                  GtkTreeIter  *iter,
9102                                  GtkRBTree    *tree,
9103                                  GtkRBNode    *node)
9104 {
9105   gint retval = FALSE;
9106   do
9107     {
9108       g_return_val_if_fail (node != NULL, FALSE);
9109
9110       if (node->children)
9111         {
9112           GtkTreeIter child;
9113           GtkRBTree *new_tree;
9114           GtkRBNode *new_node;
9115
9116           new_tree = node->children;
9117           new_node = new_tree->root;
9118
9119           while (new_node && new_node->left != new_tree->nil)
9120             new_node = new_node->left;
9121
9122           if (!gtk_tree_model_iter_children (model, &child, iter))
9123             return FALSE;
9124
9125           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9126         }
9127
9128       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9129         retval = TRUE;
9130       gtk_tree_model_unref_node (model, iter);
9131       node = _gtk_rbtree_next (tree, node);
9132     }
9133   while (gtk_tree_model_iter_next (model, iter));
9134
9135   return retval;
9136 }
9137
9138 static gint
9139 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9140                                               GtkRBTree   *tree)
9141 {
9142   GtkTreeIter iter;
9143   GtkTreePath *path;
9144   GtkRBNode *node;
9145   gint retval;
9146
9147   if (!tree)
9148     return FALSE;
9149
9150   node = tree->root;
9151   while (node && node->left != tree->nil)
9152     node = node->left;
9153
9154   g_return_val_if_fail (node != NULL, FALSE);
9155   path = _gtk_tree_view_find_path (tree_view, tree, node);
9156   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9157                            &iter, path);
9158   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9159   gtk_tree_path_free (path);
9160
9161   return retval;
9162 }
9163
9164 static void
9165 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9166                                     GtkTreeViewColumn *column)
9167 {
9168   GtkTreeViewColumn *left_column;
9169   GtkTreeViewColumn *cur_column = NULL;
9170   GtkTreeViewColumnReorder *reorder;
9171   gboolean rtl;
9172   GList *tmp_list;
9173   gint left;
9174
9175   /* We want to precalculate the motion list such that we know what column slots
9176    * are available.
9177    */
9178   left_column = NULL;
9179   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9180
9181   /* First, identify all possible drop spots */
9182   if (rtl)
9183     tmp_list = g_list_last (tree_view->priv->columns);
9184   else
9185     tmp_list = g_list_first (tree_view->priv->columns);
9186
9187   while (tmp_list)
9188     {
9189       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9190       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9191
9192       if (cur_column->visible == FALSE)
9193         continue;
9194
9195       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9196       if (left_column != column && cur_column != column &&
9197           tree_view->priv->column_drop_func &&
9198           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9199         {
9200           left_column = cur_column;
9201           continue;
9202         }
9203       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9204       reorder->left_column = left_column;
9205       left_column = reorder->right_column = cur_column;
9206
9207       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9208     }
9209
9210   /* Add the last one */
9211   if (tree_view->priv->column_drop_func == NULL ||
9212       ((left_column != column) &&
9213        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9214     {
9215       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9216       reorder->left_column = left_column;
9217       reorder->right_column = NULL;
9218       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9219     }
9220
9221   /* We quickly check to see if it even makes sense to reorder columns. */
9222   /* If there is nothing that can be moved, then we return */
9223
9224   if (tree_view->priv->column_drag_info == NULL)
9225     return;
9226
9227   /* We know there are always 2 slots possbile, as you can always return column. */
9228   /* If that's all there is, return */
9229   if (tree_view->priv->column_drag_info->next == NULL ||
9230       (tree_view->priv->column_drag_info->next->next == NULL &&
9231        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9232        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9233     {
9234       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9235         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9236       g_list_free (tree_view->priv->column_drag_info);
9237       tree_view->priv->column_drag_info = NULL;
9238       return;
9239     }
9240   /* We fill in the ranges for the columns, now that we've isolated them */
9241   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9242
9243   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9244     {
9245       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9246
9247       reorder->left_align = left;
9248       if (tmp_list->next != NULL)
9249         {
9250           g_assert (tmp_list->next->data);
9251           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9252                                          reorder->right_column->button->allocation.width +
9253                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9254         }
9255       else
9256         {
9257           gint width;
9258
9259           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9260           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9261         }
9262     }
9263 }
9264
9265 void
9266 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9267                                   GtkTreeViewColumn *column)
9268 {
9269   GdkEvent *send_event;
9270   GtkAllocation allocation;
9271   gint x, y, width, height;
9272   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9273   GdkDisplay *display = gdk_screen_get_display (screen);
9274
9275   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9276   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9277
9278   gtk_tree_view_set_column_drag_info (tree_view, column);
9279
9280   if (tree_view->priv->column_drag_info == NULL)
9281     return;
9282
9283   if (tree_view->priv->drag_window == NULL)
9284     {
9285       GdkWindowAttr attributes;
9286       guint attributes_mask;
9287
9288       attributes.window_type = GDK_WINDOW_CHILD;
9289       attributes.wclass = GDK_INPUT_OUTPUT;
9290       attributes.x = column->button->allocation.x;
9291       attributes.y = 0;
9292       attributes.width = column->button->allocation.width;
9293       attributes.height = column->button->allocation.height;
9294       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9295       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9296       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9297       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9298
9299       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9300                                                      &attributes,
9301                                                      attributes_mask);
9302       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9303     }
9304
9305   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9306   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9307
9308   gtk_grab_remove (column->button);
9309
9310   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9311   send_event->crossing.send_event = TRUE;
9312   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9313   send_event->crossing.subwindow = NULL;
9314   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9315   send_event->crossing.time = GDK_CURRENT_TIME;
9316
9317   gtk_propagate_event (column->button, send_event);
9318   gdk_event_free (send_event);
9319
9320   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9321   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9322   send_event->button.send_event = TRUE;
9323   send_event->button.time = GDK_CURRENT_TIME;
9324   send_event->button.x = -1;
9325   send_event->button.y = -1;
9326   send_event->button.axes = NULL;
9327   send_event->button.state = 0;
9328   send_event->button.button = 1;
9329   send_event->button.device = gdk_display_get_core_pointer (display);
9330   send_event->button.x_root = 0;
9331   send_event->button.y_root = 0;
9332
9333   gtk_propagate_event (column->button, send_event);
9334   gdk_event_free (send_event);
9335
9336   /* Kids, don't try this at home */
9337   g_object_ref (column->button);
9338   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9339   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9340   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9341   g_object_unref (column->button);
9342
9343   tree_view->priv->drag_column_x = column->button->allocation.x;
9344   allocation = column->button->allocation;
9345   allocation.x = 0;
9346   gtk_widget_size_allocate (column->button, &allocation);
9347   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9348
9349   tree_view->priv->drag_column = column;
9350   gdk_window_show (tree_view->priv->drag_window);
9351
9352   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9353   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9354
9355   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9356   while (gtk_events_pending ())
9357     gtk_main_iteration ();
9358
9359   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9360   gdk_pointer_grab (tree_view->priv->drag_window,
9361                     FALSE,
9362                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9363                     NULL, NULL, GDK_CURRENT_TIME);
9364   gdk_keyboard_grab (tree_view->priv->drag_window,
9365                      FALSE,
9366                      GDK_CURRENT_TIME);
9367 }
9368
9369 static void
9370 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9371                                 GtkRBTree          *tree,
9372                                 GtkRBNode          *node,
9373                                 const GdkRectangle *clip_rect)
9374 {
9375   GdkRectangle rect;
9376
9377   if (!GTK_WIDGET_REALIZED (tree_view))
9378     return;
9379
9380   rect.x = 0;
9381   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9382
9383   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9384   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9385
9386   if (clip_rect)
9387     {
9388       GdkRectangle new_rect;
9389
9390       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9391
9392       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9393     }
9394   else
9395     {
9396       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9397     }
9398 }
9399
9400 void
9401 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9402                                 GtkRBTree          *tree,
9403                                 GtkRBNode          *node,
9404                                 const GdkRectangle *clip_rect)
9405 {
9406   GdkRectangle rect;
9407
9408   if (!GTK_WIDGET_REALIZED (tree_view))
9409     return;
9410
9411   rect.x = 0;
9412   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9413
9414   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9415   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9416
9417   if (clip_rect)
9418     {
9419       GdkRectangle new_rect;
9420
9421       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9422
9423       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9424     }
9425   else
9426     {
9427       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9428     }
9429 }
9430
9431 static void
9432 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9433                                GtkTreePath        *path,
9434                                const GdkRectangle *clip_rect)
9435 {
9436   GtkRBTree *tree = NULL;
9437   GtkRBNode *node = NULL;
9438
9439   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9440
9441   if (tree)
9442     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9443 }
9444
9445 /* x and y are the mouse position
9446  */
9447 static void
9448 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9449                           GtkRBTree   *tree,
9450                           GtkRBNode   *node,
9451                           /* in bin_window coordinates */
9452                           gint         x,
9453                           gint         y)
9454 {
9455   GdkRectangle area;
9456   GtkStateType state;
9457   GtkWidget *widget;
9458   gint x_offset = 0;
9459   gint x2;
9460   gint vertical_separator;
9461   gint expander_size;
9462   GtkExpanderStyle expander_style;
9463
9464   gtk_widget_style_get (GTK_WIDGET (tree_view),
9465                         "vertical-separator", &vertical_separator,
9466                         NULL);
9467   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9468
9469   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9470     return;
9471
9472   widget = GTK_WIDGET (tree_view);
9473
9474   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9475
9476   area.x = x_offset;
9477   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9478   area.width = expander_size + 2;
9479   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9480
9481   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9482     {
9483       state = GTK_STATE_INSENSITIVE;
9484     }
9485   else if (node == tree_view->priv->button_pressed_node)
9486     {
9487       if (x >= area.x && x <= (area.x + area.width) &&
9488           y >= area.y && y <= (area.y + area.height))
9489         state = GTK_STATE_ACTIVE;
9490       else
9491         state = GTK_STATE_NORMAL;
9492     }
9493   else
9494     {
9495       if (node == tree_view->priv->prelight_node &&
9496           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9497         state = GTK_STATE_PRELIGHT;
9498       else
9499         state = GTK_STATE_NORMAL;
9500     }
9501
9502   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9503     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9504   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9505     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9506   else if (node->children != NULL)
9507     expander_style = GTK_EXPANDER_EXPANDED;
9508   else
9509     expander_style = GTK_EXPANDER_COLLAPSED;
9510
9511   gtk_paint_expander (widget->style,
9512                       tree_view->priv->bin_window,
9513                       state,
9514                       &area,
9515                       widget,
9516                       "treeview",
9517                       area.x + area.width / 2,
9518                       area.y + area.height / 2,
9519                       expander_style);
9520 }
9521
9522 static void
9523 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9524
9525 {
9526   GtkTreePath *cursor_path;
9527
9528   if ((tree_view->priv->tree == NULL) ||
9529       (! GTK_WIDGET_REALIZED (tree_view)))
9530     return;
9531
9532   cursor_path = NULL;
9533   if (tree_view->priv->cursor)
9534     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9535
9536   if (cursor_path == NULL)
9537     {
9538       /* Consult the selection before defaulting to the
9539        * first focusable element
9540        */
9541       GList *selected_rows;
9542       GtkTreeModel *model;
9543       GtkTreeSelection *selection;
9544
9545       selection = gtk_tree_view_get_selection (tree_view);
9546       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9547
9548       if (selected_rows)
9549         {
9550           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9551           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9552           g_list_free (selected_rows);
9553         }
9554       else
9555         {
9556           cursor_path = gtk_tree_path_new_first ();
9557           search_first_focusable_path (tree_view, &cursor_path,
9558                                        TRUE, NULL, NULL);
9559         }
9560
9561       gtk_tree_row_reference_free (tree_view->priv->cursor);
9562       tree_view->priv->cursor = NULL;
9563
9564       if (cursor_path)
9565         {
9566           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9567             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9568           else
9569             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9570         }
9571     }
9572
9573   if (cursor_path)
9574     {
9575       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9576
9577       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9578       gtk_tree_path_free (cursor_path);
9579
9580       if (tree_view->priv->focus_column == NULL)
9581         {
9582           GList *list;
9583           for (list = tree_view->priv->columns; list; list = list->next)
9584             {
9585               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9586                 {
9587                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9588                   break;
9589                 }
9590             }
9591         }
9592     }
9593 }
9594
9595 static void
9596 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9597                                    gint         count)
9598 {
9599   gint selection_count;
9600   GtkRBTree *cursor_tree = NULL;
9601   GtkRBNode *cursor_node = NULL;
9602   GtkRBTree *new_cursor_tree = NULL;
9603   GtkRBNode *new_cursor_node = NULL;
9604   GtkTreePath *cursor_path = NULL;
9605   gboolean grab_focus = TRUE;
9606   gboolean selectable;
9607
9608   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9609     return;
9610
9611   cursor_path = NULL;
9612   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9613     /* FIXME: we lost the cursor; should we get the first? */
9614     return;
9615
9616   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9617   _gtk_tree_view_find_node (tree_view, cursor_path,
9618                             &cursor_tree, &cursor_node);
9619
9620   if (cursor_tree == NULL)
9621     /* FIXME: we lost the cursor; should we get the first? */
9622     return;
9623
9624   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9625   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9626                                                       cursor_node,
9627                                                       cursor_path);
9628
9629   if (selection_count == 0
9630       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9631       && !tree_view->priv->ctrl_pressed
9632       && selectable)
9633     {
9634       /* Don't move the cursor, but just select the current node */
9635       new_cursor_tree = cursor_tree;
9636       new_cursor_node = cursor_node;
9637     }
9638   else
9639     {
9640       if (count == -1)
9641         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9642                                &new_cursor_tree, &new_cursor_node);
9643       else
9644         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9645                                &new_cursor_tree, &new_cursor_node);
9646     }
9647
9648   gtk_tree_path_free (cursor_path);
9649
9650   if (new_cursor_node)
9651     {
9652       cursor_path = _gtk_tree_view_find_path (tree_view,
9653                                               new_cursor_tree, new_cursor_node);
9654
9655       search_first_focusable_path (tree_view, &cursor_path,
9656                                    (count != -1),
9657                                    &new_cursor_tree,
9658                                    &new_cursor_node);
9659
9660       if (cursor_path)
9661         gtk_tree_path_free (cursor_path);
9662     }
9663
9664   /*
9665    * If the list has only one item and multi-selection is set then select
9666    * the row (if not yet selected).
9667    */
9668   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9669       new_cursor_node == NULL)
9670     {
9671       if (count == -1)
9672         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9673                                &new_cursor_tree, &new_cursor_node);
9674       else
9675         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9676                                &new_cursor_tree, &new_cursor_node);
9677
9678       if (new_cursor_node == NULL
9679           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9680         {
9681           new_cursor_node = cursor_node;
9682           new_cursor_tree = cursor_tree;
9683         }
9684       else
9685         {
9686           new_cursor_node = NULL;
9687         }
9688     }
9689
9690   if (new_cursor_node)
9691     {
9692       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9693       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9694       gtk_tree_path_free (cursor_path);
9695     }
9696   else
9697     {
9698       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9699
9700       if (!tree_view->priv->shift_pressed)
9701         {
9702           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9703                                           count < 0 ?
9704                                           GTK_DIR_UP : GTK_DIR_DOWN))
9705             {
9706               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9707
9708               if (toplevel)
9709                 gtk_widget_child_focus (toplevel,
9710                                         count < 0 ?
9711                                         GTK_DIR_TAB_BACKWARD :
9712                                         GTK_DIR_TAB_FORWARD);
9713
9714               grab_focus = FALSE;
9715             }
9716         }
9717       else
9718         {
9719           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9720         }
9721     }
9722
9723   if (grab_focus)
9724     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9725 }
9726
9727 static void
9728 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9729                                         gint         count)
9730 {
9731   GtkRBTree *cursor_tree = NULL;
9732   GtkRBNode *cursor_node = NULL;
9733   GtkTreePath *old_cursor_path = NULL;
9734   GtkTreePath *cursor_path = NULL;
9735   GtkRBTree *start_cursor_tree = NULL;
9736   GtkRBNode *start_cursor_node = NULL;
9737   gint y;
9738   gint window_y;
9739   gint vertical_separator;
9740
9741   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9742     return;
9743
9744   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9745     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9746   else
9747     /* This is sorta weird.  Focus in should give us a cursor */
9748     return;
9749
9750   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9751   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9752                             &cursor_tree, &cursor_node);
9753
9754   if (cursor_tree == NULL)
9755     {
9756       /* FIXME: we lost the cursor.  Should we try to get one? */
9757       gtk_tree_path_free (old_cursor_path);
9758       return;
9759     }
9760   g_return_if_fail (cursor_node != NULL);
9761
9762   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9763   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9764   y += tree_view->priv->cursor_offset;
9765   y += count * (int)tree_view->priv->vadjustment->page_increment;
9766   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9767
9768   if (y >= tree_view->priv->height)
9769     y = tree_view->priv->height - 1;
9770
9771   tree_view->priv->cursor_offset =
9772     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9773                              &cursor_tree, &cursor_node);
9774
9775   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9776     {
9777       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9778                              &cursor_tree, &cursor_node);
9779       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9780     }
9781
9782   y -= tree_view->priv->cursor_offset;
9783   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9784
9785   start_cursor_tree = cursor_tree;
9786   start_cursor_node = cursor_node;
9787
9788   if (! search_first_focusable_path (tree_view, &cursor_path,
9789                                      (count != -1),
9790                                      &cursor_tree, &cursor_node))
9791     {
9792       /* It looks like we reached the end of the view without finding
9793        * a focusable row.  We will step backwards to find the last
9794        * focusable row.
9795        */
9796       cursor_tree = start_cursor_tree;
9797       cursor_node = start_cursor_node;
9798       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9799
9800       search_first_focusable_path (tree_view, &cursor_path,
9801                                    (count == -1),
9802                                    &cursor_tree, &cursor_node);
9803     }
9804
9805   if (!cursor_path)
9806     goto cleanup;
9807
9808   /* update y */
9809   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9810
9811   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9812
9813   y -= window_y;
9814   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9815   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9816   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9817
9818   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9819     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9820
9821   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9822
9823 cleanup:
9824   gtk_tree_path_free (old_cursor_path);
9825   gtk_tree_path_free (cursor_path);
9826 }
9827
9828 static void
9829 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9830                                       gint         count)
9831 {
9832   GtkRBTree *cursor_tree = NULL;
9833   GtkRBNode *cursor_node = NULL;
9834   GtkTreePath *cursor_path = NULL;
9835   GtkTreeViewColumn *column;
9836   GtkTreeIter iter;
9837   GList *list;
9838   gboolean found_column = FALSE;
9839   gboolean rtl;
9840
9841   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9842
9843   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9844     return;
9845
9846   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9847     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9848   else
9849     return;
9850
9851   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9852   if (cursor_tree == NULL)
9853     return;
9854   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9855     {
9856       gtk_tree_path_free (cursor_path);
9857       return;
9858     }
9859   gtk_tree_path_free (cursor_path);
9860
9861   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9862   if (tree_view->priv->focus_column)
9863     {
9864       for (; list; list = (rtl ? list->prev : list->next))
9865         {
9866           if (list->data == tree_view->priv->focus_column)
9867             break;
9868         }
9869     }
9870
9871   while (list)
9872     {
9873       gboolean left, right;
9874
9875       column = list->data;
9876       if (column->visible == FALSE)
9877         goto loop_end;
9878
9879       gtk_tree_view_column_cell_set_cell_data (column,
9880                                                tree_view->priv->model,
9881                                                &iter,
9882                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9883                                                cursor_node->children?TRUE:FALSE);
9884
9885       if (rtl)
9886         {
9887           right = list->prev ? TRUE : FALSE;
9888           left = list->next ? TRUE : FALSE;
9889         }
9890       else
9891         {
9892           left = list->prev ? TRUE : FALSE;
9893           right = list->next ? TRUE : FALSE;
9894         }
9895
9896       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9897         {
9898           tree_view->priv->focus_column = column;
9899           found_column = TRUE;
9900           break;
9901         }
9902     loop_end:
9903       if (count == 1)
9904         list = rtl ? list->prev : list->next;
9905       else
9906         list = rtl ? list->next : list->prev;
9907     }
9908
9909   if (found_column)
9910     {
9911       if (!gtk_tree_view_has_special_cell (tree_view))
9912         _gtk_tree_view_queue_draw_node (tree_view,
9913                                         cursor_tree,
9914                                         cursor_node,
9915                                         NULL);
9916       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9917       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9918     }
9919   else
9920     {
9921       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9922     }
9923
9924   gtk_tree_view_clamp_column_visible (tree_view,
9925                                       tree_view->priv->focus_column, TRUE);
9926 }
9927
9928 static void
9929 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9930                                      gint         count)
9931 {
9932   GtkRBTree *cursor_tree;
9933   GtkRBNode *cursor_node;
9934   GtkTreePath *path;
9935   GtkTreePath *old_path;
9936
9937   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9938     return;
9939
9940   g_return_if_fail (tree_view->priv->tree != NULL);
9941
9942   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9943
9944   cursor_tree = tree_view->priv->tree;
9945   cursor_node = cursor_tree->root;
9946
9947   if (count == -1)
9948     {
9949       while (cursor_node && cursor_node->left != cursor_tree->nil)
9950         cursor_node = cursor_node->left;
9951
9952       /* Now go forward to find the first focusable row. */
9953       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9954       search_first_focusable_path (tree_view, &path,
9955                                    TRUE, &cursor_tree, &cursor_node);
9956     }
9957   else
9958     {
9959       do
9960         {
9961           while (cursor_node && cursor_node->right != cursor_tree->nil)
9962             cursor_node = cursor_node->right;
9963           if (cursor_node->children == NULL)
9964             break;
9965
9966           cursor_tree = cursor_node->children;
9967           cursor_node = cursor_tree->root;
9968         }
9969       while (1);
9970
9971       /* Now go backwards to find last focusable row. */
9972       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9973       search_first_focusable_path (tree_view, &path,
9974                                    FALSE, &cursor_tree, &cursor_node);
9975     }
9976
9977   if (!path)
9978     goto cleanup;
9979
9980   if (gtk_tree_path_compare (old_path, path))
9981     {
9982       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9983       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9984     }
9985   else
9986     {
9987       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9988     }
9989
9990 cleanup:
9991   gtk_tree_path_free (old_path);
9992   gtk_tree_path_free (path);
9993 }
9994
9995 static gboolean
9996 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
9997 {
9998   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9999     return FALSE;
10000
10001   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10002     return FALSE;
10003
10004   gtk_tree_selection_select_all (tree_view->priv->selection);
10005
10006   return TRUE;
10007 }
10008
10009 static gboolean
10010 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10011 {
10012   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10013     return FALSE;
10014
10015   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10016     return FALSE;
10017
10018   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10019
10020   return TRUE;
10021 }
10022
10023 static gboolean
10024 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10025                                       gboolean     start_editing)
10026 {
10027   GtkRBTree *new_tree = NULL;
10028   GtkRBNode *new_node = NULL;
10029   GtkRBTree *cursor_tree = NULL;
10030   GtkRBNode *cursor_node = NULL;
10031   GtkTreePath *cursor_path = NULL;
10032   GtkTreeSelectMode mode = 0;
10033
10034   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10035     return FALSE;
10036
10037   if (tree_view->priv->cursor)
10038     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10039
10040   if (cursor_path == NULL)
10041     return FALSE;
10042
10043   _gtk_tree_view_find_node (tree_view, cursor_path,
10044                             &cursor_tree, &cursor_node);
10045
10046   if (cursor_tree == NULL)
10047     {
10048       gtk_tree_path_free (cursor_path);
10049       return FALSE;
10050     }
10051
10052   if (!tree_view->priv->shift_pressed && start_editing &&
10053       tree_view->priv->focus_column)
10054     {
10055       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10056         {
10057           gtk_tree_path_free (cursor_path);
10058           return TRUE;
10059         }
10060     }
10061
10062   if (tree_view->priv->ctrl_pressed)
10063     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10064   if (tree_view->priv->shift_pressed)
10065     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10066
10067   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10068                                             cursor_node,
10069                                             cursor_tree,
10070                                             cursor_path,
10071                                             mode,
10072                                             FALSE);
10073
10074   /* We bail out if the original (tree, node) don't exist anymore after
10075    * handling the selection-changed callback.  We do return TRUE because
10076    * the key press has been handled at this point.
10077    */
10078   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10079
10080   if (cursor_tree != new_tree || cursor_node != new_node)
10081     return FALSE;
10082
10083   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10084
10085   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10086   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10087
10088   if (!tree_view->priv->shift_pressed)
10089     gtk_tree_view_row_activated (tree_view, cursor_path,
10090                                  tree_view->priv->focus_column);
10091
10092   gtk_tree_path_free (cursor_path);
10093
10094   return TRUE;
10095 }
10096
10097 static gboolean
10098 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10099 {
10100   GtkRBTree *new_tree = NULL;
10101   GtkRBNode *new_node = NULL;
10102   GtkRBTree *cursor_tree = NULL;
10103   GtkRBNode *cursor_node = NULL;
10104   GtkTreePath *cursor_path = NULL;
10105
10106   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10107     return FALSE;
10108
10109   cursor_path = NULL;
10110   if (tree_view->priv->cursor)
10111     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10112
10113   if (cursor_path == NULL)
10114     return FALSE;
10115
10116   _gtk_tree_view_find_node (tree_view, cursor_path,
10117                             &cursor_tree, &cursor_node);
10118   if (cursor_tree == NULL)
10119     {
10120       gtk_tree_path_free (cursor_path);
10121       return FALSE;
10122     }
10123
10124   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10125                                             cursor_node,
10126                                             cursor_tree,
10127                                             cursor_path,
10128                                             GTK_TREE_SELECT_MODE_TOGGLE,
10129                                             FALSE);
10130
10131   /* We bail out if the original (tree, node) don't exist anymore after
10132    * handling the selection-changed callback.  We do return TRUE because
10133    * the key press has been handled at this point.
10134    */
10135   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10136
10137   if (cursor_tree != new_tree || cursor_node != new_node)
10138     return FALSE;
10139
10140   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10141
10142   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10143   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10144   gtk_tree_path_free (cursor_path);
10145
10146   return TRUE;
10147 }
10148
10149 static gboolean
10150 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10151                                                gboolean     logical,
10152                                                gboolean     expand,
10153                                                gboolean     open_all)
10154 {
10155   GtkTreePath *cursor_path = NULL;
10156   GtkRBTree *tree;
10157   GtkRBNode *node;
10158
10159   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10160     return FALSE;
10161
10162   cursor_path = NULL;
10163   if (tree_view->priv->cursor)
10164     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10165
10166   if (cursor_path == NULL)
10167     return FALSE;
10168
10169   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10170     return FALSE;
10171
10172   /* Don't handle the event if we aren't an expander */
10173   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10174     return FALSE;
10175
10176   if (!logical
10177       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10178     expand = !expand;
10179
10180   if (expand)
10181     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10182   else
10183     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10184
10185   gtk_tree_path_free (cursor_path);
10186
10187   return TRUE;
10188 }
10189
10190 static gboolean
10191 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10192 {
10193   GtkRBTree *cursor_tree = NULL;
10194   GtkRBNode *cursor_node = NULL;
10195   GtkTreePath *cursor_path = NULL;
10196   GdkModifierType state;
10197
10198   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10199     goto out;
10200
10201   cursor_path = NULL;
10202   if (tree_view->priv->cursor)
10203     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10204
10205   if (cursor_path == NULL)
10206     goto out;
10207
10208   _gtk_tree_view_find_node (tree_view, cursor_path,
10209                             &cursor_tree, &cursor_node);
10210   if (cursor_tree == NULL)
10211     {
10212       gtk_tree_path_free (cursor_path);
10213       goto out;
10214     }
10215
10216   if (cursor_tree->parent_node)
10217     {
10218       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10219       cursor_node = cursor_tree->parent_node;
10220       cursor_tree = cursor_tree->parent_tree;
10221
10222       gtk_tree_path_up (cursor_path);
10223
10224       if (gtk_get_current_event_state (&state))
10225         {
10226           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10227             tree_view->priv->ctrl_pressed = TRUE;
10228         }
10229
10230       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10231       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10232
10233       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10234       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10235       gtk_tree_path_free (cursor_path);
10236
10237       tree_view->priv->ctrl_pressed = FALSE;
10238
10239       return TRUE;
10240     }
10241
10242  out:
10243
10244   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10245   return FALSE;
10246 }
10247
10248 static gboolean
10249 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10250 {
10251   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10252   tree_view->priv->typeselect_flush_timeout = 0;
10253
10254   return FALSE;
10255 }
10256
10257 /* Cut and paste from gtkwindow.c */
10258 static void
10259 send_focus_change (GtkWidget *widget,
10260                    gboolean   in)
10261 {
10262   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10263
10264   g_object_ref (widget);
10265
10266  if (in)
10267     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10268   else
10269     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10270
10271   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10272   fevent->focus_change.window = g_object_ref (widget->window);
10273   fevent->focus_change.in = in;
10274
10275   gtk_widget_event (widget, fevent);
10276
10277   g_object_notify (G_OBJECT (widget), "has-focus");
10278
10279   g_object_unref (widget);
10280   gdk_event_free (fevent);
10281 }
10282
10283 static void
10284 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10285 {
10286   GtkWidget *frame, *vbox, *toplevel;
10287   GdkScreen *screen;
10288
10289   if (tree_view->priv->search_custom_entry_set)
10290     return;
10291
10292   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10293   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10294
10295    if (tree_view->priv->search_window != NULL)
10296      {
10297        if (GTK_WINDOW (toplevel)->group)
10298          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10299                                       GTK_WINDOW (tree_view->priv->search_window));
10300        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10301          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10302                                          GTK_WINDOW (tree_view->priv->search_window));
10303        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10304        return;
10305      }
10306
10307   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10308   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10309
10310   if (GTK_WINDOW (toplevel)->group)
10311     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10312                                  GTK_WINDOW (tree_view->priv->search_window));
10313
10314   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10315                             GDK_WINDOW_TYPE_HINT_UTILITY);
10316   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10317   g_signal_connect (tree_view->priv->search_window, "delete-event",
10318                     G_CALLBACK (gtk_tree_view_search_delete_event),
10319                     tree_view);
10320   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10321                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10322                     tree_view);
10323   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10324                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10325                     tree_view);
10326   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10327                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10328                     tree_view);
10329
10330   frame = gtk_frame_new (NULL);
10331   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10332   gtk_widget_show (frame);
10333   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10334
10335   vbox = gtk_vbox_new (FALSE, 0);
10336   gtk_widget_show (vbox);
10337   gtk_container_add (GTK_CONTAINER (frame), vbox);
10338   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10339
10340   /* add entry */
10341   tree_view->priv->search_entry = gtk_entry_new ();
10342   gtk_widget_show (tree_view->priv->search_entry);
10343   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10344                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10345                     tree_view);
10346   g_signal_connect (tree_view->priv->search_entry,
10347                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10348                     tree_view);
10349   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10350                     "preedit-changed",
10351                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10352                     tree_view);
10353   gtk_container_add (GTK_CONTAINER (vbox),
10354                      tree_view->priv->search_entry);
10355
10356   gtk_widget_realize (tree_view->priv->search_entry);
10357 }
10358
10359 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10360  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10361  */
10362 static gboolean
10363 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10364                                              gboolean     keybinding)
10365 {
10366   /* We only start interactive search if we have focus or the columns
10367    * have focus.  If one of our children have focus, we don't want to
10368    * start the search.
10369    */
10370   GList *list;
10371   gboolean found_focus = FALSE;
10372   GtkWidgetClass *entry_parent_class;
10373
10374   if (!tree_view->priv->enable_search && !keybinding)
10375     return FALSE;
10376
10377   if (tree_view->priv->search_custom_entry_set)
10378     return FALSE;
10379
10380   if (tree_view->priv->search_window != NULL &&
10381       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10382     return TRUE;
10383
10384   for (list = tree_view->priv->columns; list; list = list->next)
10385     {
10386       GtkTreeViewColumn *column;
10387
10388       column = list->data;
10389       if (! column->visible)
10390         continue;
10391
10392       if (GTK_WIDGET_HAS_FOCUS (column->button))
10393         {
10394           found_focus = TRUE;
10395           break;
10396         }
10397     }
10398
10399   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10400     found_focus = TRUE;
10401
10402   if (!found_focus)
10403     return FALSE;
10404
10405   if (tree_view->priv->search_column < 0)
10406     return FALSE;
10407
10408   gtk_tree_view_ensure_interactive_directory (tree_view);
10409
10410   if (keybinding)
10411     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10412
10413   /* done, show it */
10414   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10415   gtk_widget_show (tree_view->priv->search_window);
10416   if (tree_view->priv->search_entry_changed_id == 0)
10417     {
10418       tree_view->priv->search_entry_changed_id =
10419         g_signal_connect (tree_view->priv->search_entry, "changed",
10420                           G_CALLBACK (gtk_tree_view_search_init),
10421                           tree_view);
10422     }
10423
10424   tree_view->priv->typeselect_flush_timeout =
10425     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10426                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10427                    tree_view);
10428
10429   /* Grab focus will select all the text.  We don't want that to happen, so we
10430    * call the parent instance and bypass the selection change.  This is probably
10431    * really non-kosher. */
10432   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10433   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10434
10435   /* send focus-in event */
10436   send_focus_change (tree_view->priv->search_entry, TRUE);
10437
10438   /* search first matching iter */
10439   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10440
10441   return TRUE;
10442 }
10443
10444 static gboolean
10445 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10446 {
10447   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10448 }
10449
10450 /* this function returns the new width of the column being resized given
10451  * the column and x position of the cursor; the x cursor position is passed
10452  * in as a pointer and automagicly corrected if it's beyond min/max limits
10453  */
10454 static gint
10455 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10456                                 gint       i,
10457                                 gint      *x)
10458 {
10459   GtkTreeViewColumn *column;
10460   gint width;
10461   gboolean rtl;
10462
10463   /* first translate the x position from widget->window
10464    * to clist->clist_window
10465    */
10466   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10467   column = g_list_nth (tree_view->priv->columns, i)->data;
10468   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10469
10470   /* Clamp down the value */
10471   if (column->min_width == -1)
10472     width = MAX (column->button->requisition.width,
10473                  width);
10474   else
10475     width = MAX (column->min_width,
10476                  width);
10477   if (column->max_width != -1)
10478     width = MIN (width, column->max_width);
10479
10480   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10481
10482   return width;
10483 }
10484
10485
10486 /* FIXME this adjust_allocation is a big cut-and-paste from
10487  * GtkCList, needs to be some "official" way to do this
10488  * factored out.
10489  */
10490 typedef struct
10491 {
10492   GdkWindow *window;
10493   int dx;
10494   int dy;
10495 } ScrollData;
10496
10497 /* The window to which widget->window is relative */
10498 #define ALLOCATION_WINDOW(widget)               \
10499    (!gtk_widget_get_has_window (widget) ?               \
10500     (widget)->window :                          \
10501      gdk_window_get_parent ((widget)->window))
10502
10503 static void
10504 adjust_allocation_recurse (GtkWidget *widget,
10505                            gpointer   data)
10506 {
10507   ScrollData *scroll_data = data;
10508
10509   /* Need to really size allocate instead of just poking
10510    * into widget->allocation if the widget is not realized.
10511    * FIXME someone figure out why this was.
10512    */
10513   if (!GTK_WIDGET_REALIZED (widget))
10514     {
10515       if (GTK_WIDGET_VISIBLE (widget))
10516         {
10517           GdkRectangle tmp_rectangle = widget->allocation;
10518           tmp_rectangle.x += scroll_data->dx;
10519           tmp_rectangle.y += scroll_data->dy;
10520
10521           gtk_widget_size_allocate (widget, &tmp_rectangle);
10522         }
10523     }
10524   else
10525     {
10526       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10527         {
10528           widget->allocation.x += scroll_data->dx;
10529           widget->allocation.y += scroll_data->dy;
10530
10531           if (GTK_IS_CONTAINER (widget))
10532             gtk_container_forall (GTK_CONTAINER (widget),
10533                                   adjust_allocation_recurse,
10534                                   data);
10535         }
10536     }
10537 }
10538
10539 static void
10540 adjust_allocation (GtkWidget *widget,
10541                    int        dx,
10542                    int        dy)
10543 {
10544   ScrollData scroll_data;
10545
10546   if (GTK_WIDGET_REALIZED (widget))
10547     scroll_data.window = ALLOCATION_WINDOW (widget);
10548   else
10549     scroll_data.window = NULL;
10550
10551   scroll_data.dx = dx;
10552   scroll_data.dy = dy;
10553
10554   adjust_allocation_recurse (widget, &scroll_data);
10555 }
10556
10557 /* Callbacks */
10558 static void
10559 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10560                                   GtkTreeView   *tree_view)
10561 {
10562   if (GTK_WIDGET_REALIZED (tree_view))
10563     {
10564       gint dy;
10565
10566       gdk_window_move (tree_view->priv->bin_window,
10567                        - tree_view->priv->hadjustment->value,
10568                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10569       gdk_window_move (tree_view->priv->header_window,
10570                        - tree_view->priv->hadjustment->value,
10571                        0);
10572       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10573       if (dy)
10574         {
10575           if (tree_view->priv->tree)
10576             update_prelight (tree_view,
10577                              tree_view->priv->event_last_x,
10578                              tree_view->priv->event_last_y - dy);
10579
10580           if (tree_view->priv->edited_column &&
10581               GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10582             {
10583               GList *list;
10584               GtkWidget *widget;
10585               GtkTreeViewChild *child = NULL;
10586
10587               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10588               adjust_allocation (widget, 0, dy);
10589
10590               for (list = tree_view->priv->children; list; list = list->next)
10591                 {
10592                   child = (GtkTreeViewChild *)list->data;
10593                   if (child->widget == widget)
10594                     {
10595                       child->y += dy;
10596                       break;
10597                     }
10598                 }
10599             }
10600         }
10601       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10602
10603       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10604         {
10605           /* update our dy and top_row */
10606           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10607
10608           if (!tree_view->priv->in_top_row_to_dy)
10609             gtk_tree_view_dy_to_top_row (tree_view);
10610         }
10611
10612       gdk_window_process_updates (tree_view->priv->header_window, TRUE);
10613       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
10614     }
10615 }
10616
10617 \f
10618
10619 /* Public methods
10620  */
10621
10622 /**
10623  * gtk_tree_view_new:
10624  *
10625  * Creates a new #GtkTreeView widget.
10626  *
10627  * Return value: A newly created #GtkTreeView widget.
10628  **/
10629 GtkWidget *
10630 gtk_tree_view_new (void)
10631 {
10632   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10633 }
10634
10635 /**
10636  * gtk_tree_view_new_with_model:
10637  * @model: the model.
10638  *
10639  * Creates a new #GtkTreeView widget with the model initialized to @model.
10640  *
10641  * Return value: A newly created #GtkTreeView widget.
10642  **/
10643 GtkWidget *
10644 gtk_tree_view_new_with_model (GtkTreeModel *model)
10645 {
10646   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10647 }
10648
10649 /* Public Accessors
10650  */
10651
10652 /**
10653  * gtk_tree_view_get_model:
10654  * @tree_view: a #GtkTreeView
10655  *
10656  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10657  * model is unset.
10658  *
10659  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10660  **/
10661 GtkTreeModel *
10662 gtk_tree_view_get_model (GtkTreeView *tree_view)
10663 {
10664   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10665
10666   return tree_view->priv->model;
10667 }
10668
10669 /**
10670  * gtk_tree_view_set_model:
10671  * @tree_view: A #GtkTreeNode.
10672  * @model: (allow-none): The model.
10673  *
10674  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10675  * set, it will remove it before setting the new model.  If @model is %NULL,
10676  * then it will unset the old model.
10677  **/
10678 void
10679 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10680                          GtkTreeModel *model)
10681 {
10682   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10683   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10684
10685   if (model == tree_view->priv->model)
10686     return;
10687
10688   if (tree_view->priv->scroll_to_path)
10689     {
10690       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10691       tree_view->priv->scroll_to_path = NULL;
10692     }
10693
10694   if (tree_view->priv->model)
10695     {
10696       GList *tmplist = tree_view->priv->columns;
10697
10698       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10699       gtk_tree_view_stop_editing (tree_view, TRUE);
10700
10701       remove_expand_collapse_timeout (tree_view);
10702
10703       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10704                                             gtk_tree_view_row_changed,
10705                                             tree_view);
10706       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10707                                             gtk_tree_view_row_inserted,
10708                                             tree_view);
10709       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10710                                             gtk_tree_view_row_has_child_toggled,
10711                                             tree_view);
10712       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10713                                             gtk_tree_view_row_deleted,
10714                                             tree_view);
10715       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10716                                             gtk_tree_view_rows_reordered,
10717                                             tree_view);
10718
10719       for (; tmplist; tmplist = tmplist->next)
10720         _gtk_tree_view_column_unset_model (tmplist->data,
10721                                            tree_view->priv->model);
10722
10723       if (tree_view->priv->tree)
10724         gtk_tree_view_free_rbtree (tree_view);
10725
10726       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10727       tree_view->priv->drag_dest_row = NULL;
10728       gtk_tree_row_reference_free (tree_view->priv->cursor);
10729       tree_view->priv->cursor = NULL;
10730       gtk_tree_row_reference_free (tree_view->priv->anchor);
10731       tree_view->priv->anchor = NULL;
10732       gtk_tree_row_reference_free (tree_view->priv->top_row);
10733       tree_view->priv->top_row = NULL;
10734       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10735       tree_view->priv->scroll_to_path = NULL;
10736
10737       tree_view->priv->scroll_to_column = NULL;
10738
10739       g_object_unref (tree_view->priv->model);
10740
10741       tree_view->priv->search_column = -1;
10742       tree_view->priv->fixed_height_check = 0;
10743       tree_view->priv->fixed_height = -1;
10744       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10745       tree_view->priv->last_button_x = -1;
10746       tree_view->priv->last_button_y = -1;
10747     }
10748
10749   tree_view->priv->model = model;
10750
10751   if (tree_view->priv->model)
10752     {
10753       gint i;
10754       GtkTreePath *path;
10755       GtkTreeIter iter;
10756       GtkTreeModelFlags flags;
10757
10758       if (tree_view->priv->search_column == -1)
10759         {
10760           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10761             {
10762               GType type = gtk_tree_model_get_column_type (model, i);
10763
10764               if (g_value_type_transformable (type, G_TYPE_STRING))
10765                 {
10766                   tree_view->priv->search_column = i;
10767                   break;
10768                 }
10769             }
10770         }
10771
10772       g_object_ref (tree_view->priv->model);
10773       g_signal_connect (tree_view->priv->model,
10774                         "row-changed",
10775                         G_CALLBACK (gtk_tree_view_row_changed),
10776                         tree_view);
10777       g_signal_connect (tree_view->priv->model,
10778                         "row-inserted",
10779                         G_CALLBACK (gtk_tree_view_row_inserted),
10780                         tree_view);
10781       g_signal_connect (tree_view->priv->model,
10782                         "row-has-child-toggled",
10783                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10784                         tree_view);
10785       g_signal_connect (tree_view->priv->model,
10786                         "row-deleted",
10787                         G_CALLBACK (gtk_tree_view_row_deleted),
10788                         tree_view);
10789       g_signal_connect (tree_view->priv->model,
10790                         "rows-reordered",
10791                         G_CALLBACK (gtk_tree_view_rows_reordered),
10792                         tree_view);
10793
10794       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10795       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10796         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10797       else
10798         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10799
10800       path = gtk_tree_path_new_first ();
10801       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10802         {
10803           tree_view->priv->tree = _gtk_rbtree_new ();
10804           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10805         }
10806       gtk_tree_path_free (path);
10807
10808       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10809       install_presize_handler (tree_view);
10810     }
10811
10812   g_object_notify (G_OBJECT (tree_view), "model");
10813
10814   if (tree_view->priv->selection)
10815   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10816
10817   if (GTK_WIDGET_REALIZED (tree_view))
10818     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10819 }
10820
10821 /**
10822  * gtk_tree_view_get_selection:
10823  * @tree_view: A #GtkTreeView.
10824  *
10825  * Gets the #GtkTreeSelection associated with @tree_view.
10826  *
10827  * Return value: A #GtkTreeSelection object.
10828  **/
10829 GtkTreeSelection *
10830 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10831 {
10832   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10833
10834   return tree_view->priv->selection;
10835 }
10836
10837 /**
10838  * gtk_tree_view_get_hadjustment:
10839  * @tree_view: A #GtkTreeView
10840  *
10841  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10842  *
10843  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10844  * used.
10845  **/
10846 GtkAdjustment *
10847 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10848 {
10849   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10850
10851   if (tree_view->priv->hadjustment == NULL)
10852     gtk_tree_view_set_hadjustment (tree_view, NULL);
10853
10854   return tree_view->priv->hadjustment;
10855 }
10856
10857 /**
10858  * gtk_tree_view_set_hadjustment:
10859  * @tree_view: A #GtkTreeView
10860  * @adjustment: The #GtkAdjustment to set, or %NULL
10861  *
10862  * Sets the #GtkAdjustment for the current horizontal aspect.
10863  **/
10864 void
10865 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10866                                GtkAdjustment *adjustment)
10867 {
10868   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10869
10870   gtk_tree_view_set_adjustments (tree_view,
10871                                  adjustment,
10872                                  tree_view->priv->vadjustment);
10873
10874   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10875 }
10876
10877 /**
10878  * gtk_tree_view_get_vadjustment:
10879  * @tree_view: A #GtkTreeView
10880  *
10881  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10882  *
10883  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10884  * used.
10885  **/
10886 GtkAdjustment *
10887 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10888 {
10889   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10890
10891   if (tree_view->priv->vadjustment == NULL)
10892     gtk_tree_view_set_vadjustment (tree_view, NULL);
10893
10894   return tree_view->priv->vadjustment;
10895 }
10896
10897 /**
10898  * gtk_tree_view_set_vadjustment:
10899  * @tree_view: A #GtkTreeView
10900  * @adjustment: The #GtkAdjustment to set, or %NULL
10901  *
10902  * Sets the #GtkAdjustment for the current vertical aspect.
10903  **/
10904 void
10905 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10906                                GtkAdjustment *adjustment)
10907 {
10908   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10909
10910   gtk_tree_view_set_adjustments (tree_view,
10911                                  tree_view->priv->hadjustment,
10912                                  adjustment);
10913
10914   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10915 }
10916
10917 /* Column and header operations */
10918
10919 /**
10920  * gtk_tree_view_get_headers_visible:
10921  * @tree_view: A #GtkTreeView.
10922  *
10923  * Returns %TRUE if the headers on the @tree_view are visible.
10924  *
10925  * Return value: Whether the headers are visible or not.
10926  **/
10927 gboolean
10928 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10929 {
10930   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10931
10932   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10933 }
10934
10935 /**
10936  * gtk_tree_view_set_headers_visible:
10937  * @tree_view: A #GtkTreeView.
10938  * @headers_visible: %TRUE if the headers are visible
10939  *
10940  * Sets the visibility state of the headers.
10941  **/
10942 void
10943 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10944                                    gboolean     headers_visible)
10945 {
10946   gint x, y;
10947   GList *list;
10948   GtkTreeViewColumn *column;
10949
10950   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10951
10952   headers_visible = !! headers_visible;
10953
10954   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10955     return;
10956
10957   if (headers_visible)
10958     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10959   else
10960     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10961
10962   if (GTK_WIDGET_REALIZED (tree_view))
10963     {
10964       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10965       if (headers_visible)
10966         {
10967           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));
10968
10969           if (GTK_WIDGET_MAPPED (tree_view))
10970             gtk_tree_view_map_buttons (tree_view);
10971         }
10972       else
10973         {
10974           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10975
10976           for (list = tree_view->priv->columns; list; list = list->next)
10977             {
10978               column = list->data;
10979               gtk_widget_unmap (column->button);
10980             }
10981           gdk_window_hide (tree_view->priv->header_window);
10982         }
10983     }
10984
10985   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10986   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10987   tree_view->priv->vadjustment->lower = 0;
10988   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10989   gtk_adjustment_changed (tree_view->priv->vadjustment);
10990
10991   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10992
10993   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10994 }
10995
10996 /**
10997  * gtk_tree_view_columns_autosize:
10998  * @tree_view: A #GtkTreeView.
10999  *
11000  * Resizes all columns to their optimal width. Only works after the
11001  * treeview has been realized.
11002  **/
11003 void
11004 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11005 {
11006   gboolean dirty = FALSE;
11007   GList *list;
11008   GtkTreeViewColumn *column;
11009
11010   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11011
11012   for (list = tree_view->priv->columns; list; list = list->next)
11013     {
11014       column = list->data;
11015       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11016         continue;
11017       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11018       dirty = TRUE;
11019     }
11020
11021   if (dirty)
11022     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11023 }
11024
11025 /**
11026  * gtk_tree_view_set_headers_clickable:
11027  * @tree_view: A #GtkTreeView.
11028  * @setting: %TRUE if the columns are clickable.
11029  *
11030  * Allow the column title buttons to be clicked.
11031  **/
11032 void
11033 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11034                                      gboolean   setting)
11035 {
11036   GList *list;
11037
11038   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11039
11040   for (list = tree_view->priv->columns; list; list = list->next)
11041     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11042
11043   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11044 }
11045
11046
11047 /**
11048  * gtk_tree_view_get_headers_clickable:
11049  * @tree_view: A #GtkTreeView.
11050  *
11051  * Returns whether all header columns are clickable.
11052  *
11053  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11054  *
11055  * Since: 2.10
11056  **/
11057 gboolean
11058 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11059 {
11060   GList *list;
11061
11062   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11063
11064   for (list = tree_view->priv->columns; list; list = list->next)
11065     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11066       return FALSE;
11067
11068   return TRUE;
11069 }
11070
11071 /**
11072  * gtk_tree_view_set_rules_hint
11073  * @tree_view: a #GtkTreeView
11074  * @setting: %TRUE if the tree requires reading across rows
11075  *
11076  * This function tells GTK+ that the user interface for your
11077  * application requires users to read across tree rows and associate
11078  * cells with one another. By default, GTK+ will then render the tree
11079  * with alternating row colors. Do <emphasis>not</emphasis> use it
11080  * just because you prefer the appearance of the ruled tree; that's a
11081  * question for the theme. Some themes will draw tree rows in
11082  * alternating colors even when rules are turned off, and users who
11083  * prefer that appearance all the time can choose those themes. You
11084  * should call this function only as a <emphasis>semantic</emphasis>
11085  * hint to the theme engine that your tree makes alternating colors
11086  * useful from a functional standpoint (since it has lots of columns,
11087  * generally).
11088  *
11089  **/
11090 void
11091 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11092                               gboolean      setting)
11093 {
11094   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11095
11096   setting = setting != FALSE;
11097
11098   if (tree_view->priv->has_rules != setting)
11099     {
11100       tree_view->priv->has_rules = setting;
11101       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11102     }
11103
11104   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11105 }
11106
11107 /**
11108  * gtk_tree_view_get_rules_hint
11109  * @tree_view: a #GtkTreeView
11110  *
11111  * Gets the setting set by gtk_tree_view_set_rules_hint().
11112  *
11113  * Return value: %TRUE if rules are useful for the user of this tree
11114  **/
11115 gboolean
11116 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11117 {
11118   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11119
11120   return tree_view->priv->has_rules;
11121 }
11122
11123 /* Public Column functions
11124  */
11125
11126 /**
11127  * gtk_tree_view_append_column:
11128  * @tree_view: A #GtkTreeView.
11129  * @column: The #GtkTreeViewColumn to add.
11130  *
11131  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11132  * mode enabled, then @column must have its "sizing" property set to be
11133  * GTK_TREE_VIEW_COLUMN_FIXED.
11134  *
11135  * Return value: The number of columns in @tree_view after appending.
11136  **/
11137 gint
11138 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11139                              GtkTreeViewColumn *column)
11140 {
11141   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11142   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11143   g_return_val_if_fail (column->tree_view == NULL, -1);
11144
11145   return gtk_tree_view_insert_column (tree_view, column, -1);
11146 }
11147
11148
11149 /**
11150  * gtk_tree_view_remove_column:
11151  * @tree_view: A #GtkTreeView.
11152  * @column: The #GtkTreeViewColumn to remove.
11153  *
11154  * Removes @column from @tree_view.
11155  *
11156  * Return value: The number of columns in @tree_view after removing.
11157  **/
11158 gint
11159 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11160                              GtkTreeViewColumn *column)
11161 {
11162   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11163   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11164   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11165
11166   if (tree_view->priv->focus_column == column)
11167     tree_view->priv->focus_column = NULL;
11168
11169   if (tree_view->priv->edited_column == column)
11170     {
11171       gtk_tree_view_stop_editing (tree_view, TRUE);
11172
11173       /* no need to, but just to be sure ... */
11174       tree_view->priv->edited_column = NULL;
11175     }
11176
11177   if (tree_view->priv->expander_column == column)
11178     tree_view->priv->expander_column = NULL;
11179
11180   g_signal_handlers_disconnect_by_func (column,
11181                                         G_CALLBACK (column_sizing_notify),
11182                                         tree_view);
11183
11184   _gtk_tree_view_column_unset_tree_view (column);
11185
11186   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11187   tree_view->priv->n_columns--;
11188
11189   if (GTK_WIDGET_REALIZED (tree_view))
11190     {
11191       GList *list;
11192
11193       _gtk_tree_view_column_unrealize_button (column);
11194       for (list = tree_view->priv->columns; list; list = list->next)
11195         {
11196           GtkTreeViewColumn *tmp_column;
11197
11198           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11199           if (tmp_column->visible)
11200             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11201         }
11202
11203       if (tree_view->priv->n_columns == 0 &&
11204           gtk_tree_view_get_headers_visible (tree_view))
11205         gdk_window_hide (tree_view->priv->header_window);
11206
11207       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11208     }
11209
11210   g_object_unref (column);
11211   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11212
11213   return tree_view->priv->n_columns;
11214 }
11215
11216 /**
11217  * gtk_tree_view_insert_column:
11218  * @tree_view: A #GtkTreeView.
11219  * @column: The #GtkTreeViewColumn to be inserted.
11220  * @position: The position to insert @column in.
11221  *
11222  * This inserts the @column into the @tree_view at @position.  If @position is
11223  * -1, then the column is inserted at the end. If @tree_view has
11224  * "fixed_height" mode enabled, then @column must have its "sizing" property
11225  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11226  *
11227  * Return value: The number of columns in @tree_view after insertion.
11228  **/
11229 gint
11230 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11231                              GtkTreeViewColumn *column,
11232                              gint               position)
11233 {
11234   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11235   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11236   g_return_val_if_fail (column->tree_view == NULL, -1);
11237
11238   if (tree_view->priv->fixed_height_mode)
11239     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11240                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11241
11242   g_object_ref_sink (column);
11243
11244   if (tree_view->priv->n_columns == 0 &&
11245       GTK_WIDGET_REALIZED (tree_view) &&
11246       gtk_tree_view_get_headers_visible (tree_view))
11247     {
11248       gdk_window_show (tree_view->priv->header_window);
11249     }
11250
11251   g_signal_connect (column, "notify::sizing",
11252                     G_CALLBACK (column_sizing_notify), tree_view);
11253
11254   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11255                                             column, position);
11256   tree_view->priv->n_columns++;
11257
11258   _gtk_tree_view_column_set_tree_view (column, tree_view);
11259
11260   if (GTK_WIDGET_REALIZED (tree_view))
11261     {
11262       GList *list;
11263
11264       _gtk_tree_view_column_realize_button (column);
11265
11266       for (list = tree_view->priv->columns; list; list = list->next)
11267         {
11268           column = GTK_TREE_VIEW_COLUMN (list->data);
11269           if (column->visible)
11270             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11271         }
11272       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11273     }
11274
11275   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11276
11277   return tree_view->priv->n_columns;
11278 }
11279
11280 /**
11281  * gtk_tree_view_insert_column_with_attributes:
11282  * @tree_view: A #GtkTreeView
11283  * @position: The position to insert the new column in.
11284  * @title: The title to set the header to.
11285  * @cell: The #GtkCellRenderer.
11286  * @Varargs: A %NULL-terminated list of attributes.
11287  *
11288  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11289  * @position.  If @position is -1, then the newly created column is inserted at
11290  * the end.  The column is initialized with the attributes given. If @tree_view
11291  * has "fixed_height" mode enabled, then the new column will have its sizing
11292  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11293  *
11294  * Return value: The number of columns in @tree_view after insertion.
11295  **/
11296 gint
11297 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11298                                              gint             position,
11299                                              const gchar     *title,
11300                                              GtkCellRenderer *cell,
11301                                              ...)
11302 {
11303   GtkTreeViewColumn *column;
11304   gchar *attribute;
11305   va_list args;
11306   gint column_id;
11307
11308   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11309
11310   column = gtk_tree_view_column_new ();
11311   if (tree_view->priv->fixed_height_mode)
11312     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11313
11314   gtk_tree_view_column_set_title (column, title);
11315   gtk_tree_view_column_pack_start (column, cell, TRUE);
11316
11317   va_start (args, cell);
11318
11319   attribute = va_arg (args, gchar *);
11320
11321   while (attribute != NULL)
11322     {
11323       column_id = va_arg (args, gint);
11324       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11325       attribute = va_arg (args, gchar *);
11326     }
11327
11328   va_end (args);
11329
11330   gtk_tree_view_insert_column (tree_view, column, position);
11331
11332   return tree_view->priv->n_columns;
11333 }
11334
11335 /**
11336  * gtk_tree_view_insert_column_with_data_func:
11337  * @tree_view: a #GtkTreeView
11338  * @position: Position to insert, -1 for append
11339  * @title: column title
11340  * @cell: cell renderer for column
11341  * @func: function to set attributes of cell renderer
11342  * @data: data for @func
11343  * @dnotify: destroy notifier for @data
11344  *
11345  * Convenience function that inserts a new column into the #GtkTreeView
11346  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11347  * attributes (normally using data from the model). See also
11348  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11349  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11350  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11351  *
11352  * Return value: number of columns in the tree view post-insert
11353  **/
11354 gint
11355 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11356                                              gint                       position,
11357                                              const gchar               *title,
11358                                              GtkCellRenderer           *cell,
11359                                              GtkTreeCellDataFunc        func,
11360                                              gpointer                   data,
11361                                              GDestroyNotify             dnotify)
11362 {
11363   GtkTreeViewColumn *column;
11364
11365   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11366
11367   column = gtk_tree_view_column_new ();
11368   if (tree_view->priv->fixed_height_mode)
11369     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11370
11371   gtk_tree_view_column_set_title (column, title);
11372   gtk_tree_view_column_pack_start (column, cell, TRUE);
11373   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11374
11375   gtk_tree_view_insert_column (tree_view, column, position);
11376
11377   return tree_view->priv->n_columns;
11378 }
11379
11380 /**
11381  * gtk_tree_view_get_column:
11382  * @tree_view: A #GtkTreeView.
11383  * @n: The position of the column, counting from 0.
11384  *
11385  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11386  *
11387  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11388  * range of columns.
11389  **/
11390 GtkTreeViewColumn *
11391 gtk_tree_view_get_column (GtkTreeView *tree_view,
11392                           gint         n)
11393 {
11394   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11395
11396   if (n < 0 || n >= tree_view->priv->n_columns)
11397     return NULL;
11398
11399   if (tree_view->priv->columns == NULL)
11400     return NULL;
11401
11402   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11403 }
11404
11405 /**
11406  * gtk_tree_view_get_columns:
11407  * @tree_view: A #GtkTreeView
11408  *
11409  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11410  * The returned list must be freed with g_list_free ().
11411  *
11412  * Return value: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
11413  **/
11414 GList *
11415 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11416 {
11417   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11418
11419   return g_list_copy (tree_view->priv->columns);
11420 }
11421
11422 /**
11423  * gtk_tree_view_move_column_after:
11424  * @tree_view: A #GtkTreeView
11425  * @column: The #GtkTreeViewColumn to be moved.
11426  * @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
11427  *
11428  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11429  * @column is placed in the first position.
11430  **/
11431 void
11432 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11433                                  GtkTreeViewColumn *column,
11434                                  GtkTreeViewColumn *base_column)
11435 {
11436   GList *column_list_el, *base_el = NULL;
11437
11438   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11439
11440   column_list_el = g_list_find (tree_view->priv->columns, column);
11441   g_return_if_fail (column_list_el != NULL);
11442
11443   if (base_column)
11444     {
11445       base_el = g_list_find (tree_view->priv->columns, base_column);
11446       g_return_if_fail (base_el != NULL);
11447     }
11448
11449   if (column_list_el->prev == base_el)
11450     return;
11451
11452   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11453   if (base_el == NULL)
11454     {
11455       column_list_el->prev = NULL;
11456       column_list_el->next = tree_view->priv->columns;
11457       if (column_list_el->next)
11458         column_list_el->next->prev = column_list_el;
11459       tree_view->priv->columns = column_list_el;
11460     }
11461   else
11462     {
11463       column_list_el->prev = base_el;
11464       column_list_el->next = base_el->next;
11465       if (column_list_el->next)
11466         column_list_el->next->prev = column_list_el;
11467       base_el->next = column_list_el;
11468     }
11469
11470   if (GTK_WIDGET_REALIZED (tree_view))
11471     {
11472       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11473       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11474     }
11475
11476   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11477 }
11478
11479 /**
11480  * gtk_tree_view_set_expander_column:
11481  * @tree_view: A #GtkTreeView
11482  * @column: %NULL, or the column to draw the expander arrow at.
11483  *
11484  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11485  * If @column is %NULL, then the expander arrow is always at the first
11486  * visible column.
11487  *
11488  * If you do not want expander arrow to appear in your tree, set the
11489  * expander column to a hidden column.
11490  **/
11491 void
11492 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11493                                    GtkTreeViewColumn *column)
11494 {
11495   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11496   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11497
11498   if (tree_view->priv->expander_column != column)
11499     {
11500       GList *list;
11501
11502       if (column)
11503         {
11504           /* Confirm that column is in tree_view */
11505           for (list = tree_view->priv->columns; list; list = list->next)
11506             if (list->data == column)
11507               break;
11508           g_return_if_fail (list != NULL);
11509         }
11510
11511       tree_view->priv->expander_column = column;
11512       g_object_notify (G_OBJECT (tree_view), "expander-column");
11513     }
11514 }
11515
11516 /**
11517  * gtk_tree_view_get_expander_column:
11518  * @tree_view: A #GtkTreeView
11519  *
11520  * Returns the column that is the current expander column.  This
11521  * column has the expander arrow drawn next to it.
11522  *
11523  * Return value: The expander column.
11524  **/
11525 GtkTreeViewColumn *
11526 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11527 {
11528   GList *list;
11529
11530   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11531
11532   for (list = tree_view->priv->columns; list; list = list->next)
11533     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11534       return (GtkTreeViewColumn *) list->data;
11535   return NULL;
11536 }
11537
11538
11539 /**
11540  * gtk_tree_view_set_column_drag_function:
11541  * @tree_view: A #GtkTreeView.
11542  * @func: A function to determine which columns are reorderable, or %NULL.
11543  * @user_data: User data to be passed to @func, or %NULL
11544  * @destroy: Destroy notifier for @user_data, or %NULL
11545  *
11546  * Sets a user function for determining where a column may be dropped when
11547  * dragged.  This function is called on every column pair in turn at the
11548  * beginning of a column drag to determine where a drop can take place.  The
11549  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11550  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11551  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11552  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11553  * @tree_view reverts to the default behavior of allowing all columns to be
11554  * dropped everywhere.
11555  **/
11556 void
11557 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11558                                         GtkTreeViewColumnDropFunc  func,
11559                                         gpointer                   user_data,
11560                                         GDestroyNotify             destroy)
11561 {
11562   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11563
11564   if (tree_view->priv->column_drop_func_data_destroy)
11565     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11566
11567   tree_view->priv->column_drop_func = func;
11568   tree_view->priv->column_drop_func_data = user_data;
11569   tree_view->priv->column_drop_func_data_destroy = destroy;
11570 }
11571
11572 /**
11573  * gtk_tree_view_scroll_to_point:
11574  * @tree_view: a #GtkTreeView
11575  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11576  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11577  *
11578  * Scrolls the tree view such that the top-left corner of the visible
11579  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11580  * in tree coordinates.  The @tree_view must be realized before
11581  * this function is called.  If it isn't, you probably want to be
11582  * using gtk_tree_view_scroll_to_cell().
11583  *
11584  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11585  **/
11586 void
11587 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11588                                gint         tree_x,
11589                                gint         tree_y)
11590 {
11591   GtkAdjustment *hadj;
11592   GtkAdjustment *vadj;
11593
11594   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11595   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11596
11597   hadj = tree_view->priv->hadjustment;
11598   vadj = tree_view->priv->vadjustment;
11599
11600   if (tree_x != -1)
11601     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11602   if (tree_y != -1)
11603     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11604 }
11605
11606 /**
11607  * gtk_tree_view_scroll_to_cell:
11608  * @tree_view: A #GtkTreeView.
11609  * @path: (allow-none): The path of the row to move to, or %NULL.
11610  * @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
11611  * @use_align: whether to use alignment arguments, or %FALSE.
11612  * @row_align: The vertical alignment of the row specified by @path.
11613  * @col_align: The horizontal alignment of the column specified by @column.
11614  *
11615  * Moves the alignments of @tree_view to the position specified by @column and
11616  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11617  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11618  * or @path need to be non-%NULL.  @row_align determines where the row is
11619  * placed, and @col_align determines where @column is placed.  Both are expected
11620  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11621  * right/bottom alignment, 0.5 means center.
11622  *
11623  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11624  * tree does the minimum amount of work to scroll the cell onto the screen.
11625  * This means that the cell will be scrolled to the edge closest to its current
11626  * position.  If the cell is currently visible on the screen, nothing is done.
11627  *
11628  * This function only works if the model is set, and @path is a valid row on the
11629  * model.  If the model changes before the @tree_view is realized, the centered
11630  * path will be modified to reflect this change.
11631  **/
11632 void
11633 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11634                               GtkTreePath       *path,
11635                               GtkTreeViewColumn *column,
11636                               gboolean           use_align,
11637                               gfloat             row_align,
11638                               gfloat             col_align)
11639 {
11640   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11641   g_return_if_fail (tree_view->priv->model != NULL);
11642   g_return_if_fail (tree_view->priv->tree != NULL);
11643   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11644   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11645   g_return_if_fail (path != NULL || column != NULL);
11646
11647 #if 0
11648   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11649            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11650 #endif
11651   row_align = CLAMP (row_align, 0.0, 1.0);
11652   col_align = CLAMP (col_align, 0.0, 1.0);
11653
11654
11655   /* Note: Despite the benefits that come from having one code path for the
11656    * scrolling code, we short-circuit validate_visible_area's immplementation as
11657    * it is much slower than just going to the point.
11658    */
11659   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11660       ! GTK_WIDGET_REALIZED (tree_view) ||
11661       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11662       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11663     {
11664       if (tree_view->priv->scroll_to_path)
11665         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11666
11667       tree_view->priv->scroll_to_path = NULL;
11668       tree_view->priv->scroll_to_column = NULL;
11669
11670       if (path)
11671         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11672       if (column)
11673         tree_view->priv->scroll_to_column = column;
11674       tree_view->priv->scroll_to_use_align = use_align;
11675       tree_view->priv->scroll_to_row_align = row_align;
11676       tree_view->priv->scroll_to_col_align = col_align;
11677
11678       install_presize_handler (tree_view);
11679     }
11680   else
11681     {
11682       GdkRectangle cell_rect;
11683       GdkRectangle vis_rect;
11684       gint dest_x, dest_y;
11685
11686       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11687       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11688
11689       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11690
11691       dest_x = vis_rect.x;
11692       dest_y = vis_rect.y;
11693
11694       if (column)
11695         {
11696           if (use_align)
11697             {
11698               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11699             }
11700           else
11701             {
11702               if (cell_rect.x < vis_rect.x)
11703                 dest_x = cell_rect.x;
11704               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11705                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11706             }
11707         }
11708
11709       if (path)
11710         {
11711           if (use_align)
11712             {
11713               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11714               dest_y = MAX (dest_y, 0);
11715             }
11716           else
11717             {
11718               if (cell_rect.y < vis_rect.y)
11719                 dest_y = cell_rect.y;
11720               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11721                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11722             }
11723         }
11724
11725       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11726     }
11727 }
11728
11729 /**
11730  * gtk_tree_view_row_activated:
11731  * @tree_view: A #GtkTreeView
11732  * @path: The #GtkTreePath to be activated.
11733  * @column: The #GtkTreeViewColumn to be activated.
11734  *
11735  * Activates the cell determined by @path and @column.
11736  **/
11737 void
11738 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11739                              GtkTreePath       *path,
11740                              GtkTreeViewColumn *column)
11741 {
11742   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11743
11744   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11745 }
11746
11747
11748 static void
11749 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11750                                           GtkRBNode *node,
11751                                           gpointer   data)
11752 {
11753   GtkTreeView *tree_view = data;
11754
11755   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11756       node->children)
11757     {
11758       GtkTreePath *path;
11759       GtkTreeIter iter;
11760
11761       path = _gtk_tree_view_find_path (tree_view, tree, node);
11762       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11763
11764       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11765
11766       gtk_tree_path_free (path);
11767     }
11768
11769   if (node->children)
11770     _gtk_rbtree_traverse (node->children,
11771                           node->children->root,
11772                           G_PRE_ORDER,
11773                           gtk_tree_view_expand_all_emission_helper,
11774                           tree_view);
11775 }
11776
11777 /**
11778  * gtk_tree_view_expand_all:
11779  * @tree_view: A #GtkTreeView.
11780  *
11781  * Recursively expands all nodes in the @tree_view.
11782  **/
11783 void
11784 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11785 {
11786   GtkTreePath *path;
11787   GtkRBTree *tree;
11788   GtkRBNode *node;
11789
11790   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11791
11792   if (tree_view->priv->tree == NULL)
11793     return;
11794
11795   path = gtk_tree_path_new_first ();
11796   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11797
11798   while (node)
11799     {
11800       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11801       node = _gtk_rbtree_next (tree, node);
11802       gtk_tree_path_next (path);
11803   }
11804
11805   gtk_tree_path_free (path);
11806 }
11807
11808 /* Timeout to animate the expander during expands and collapses */
11809 static gboolean
11810 expand_collapse_timeout (gpointer data)
11811 {
11812   return do_expand_collapse (data);
11813 }
11814
11815 static void
11816 add_expand_collapse_timeout (GtkTreeView *tree_view,
11817                              GtkRBTree   *tree,
11818                              GtkRBNode   *node,
11819                              gboolean     expand)
11820 {
11821   if (tree_view->priv->expand_collapse_timeout != 0)
11822     return;
11823
11824   tree_view->priv->expand_collapse_timeout =
11825       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11826   tree_view->priv->expanded_collapsed_tree = tree;
11827   tree_view->priv->expanded_collapsed_node = node;
11828
11829   if (expand)
11830     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11831   else
11832     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11833 }
11834
11835 static void
11836 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11837 {
11838   if (tree_view->priv->expand_collapse_timeout)
11839     {
11840       g_source_remove (tree_view->priv->expand_collapse_timeout);
11841       tree_view->priv->expand_collapse_timeout = 0;
11842     }
11843
11844   if (tree_view->priv->expanded_collapsed_node != NULL)
11845     {
11846       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11847       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11848
11849       tree_view->priv->expanded_collapsed_node = NULL;
11850     }
11851 }
11852
11853 static void
11854 cancel_arrow_animation (GtkTreeView *tree_view)
11855 {
11856   if (tree_view->priv->expand_collapse_timeout)
11857     {
11858       while (do_expand_collapse (tree_view));
11859
11860       remove_expand_collapse_timeout (tree_view);
11861     }
11862 }
11863
11864 static gboolean
11865 do_expand_collapse (GtkTreeView *tree_view)
11866 {
11867   GtkRBNode *node;
11868   GtkRBTree *tree;
11869   gboolean expanding;
11870   gboolean redraw;
11871
11872   redraw = FALSE;
11873   expanding = TRUE;
11874
11875   node = tree_view->priv->expanded_collapsed_node;
11876   tree = tree_view->priv->expanded_collapsed_tree;
11877
11878   if (node->children == NULL)
11879     expanding = FALSE;
11880
11881   if (expanding)
11882     {
11883       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11884         {
11885           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11886           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11887
11888           redraw = TRUE;
11889
11890         }
11891       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11892         {
11893           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11894
11895           redraw = TRUE;
11896         }
11897     }
11898   else
11899     {
11900       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11901         {
11902           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11903           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11904
11905           redraw = TRUE;
11906         }
11907       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11908         {
11909           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11910
11911           redraw = TRUE;
11912
11913         }
11914     }
11915
11916   if (redraw)
11917     {
11918       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11919
11920       return TRUE;
11921     }
11922
11923   return FALSE;
11924 }
11925
11926 /**
11927  * gtk_tree_view_collapse_all:
11928  * @tree_view: A #GtkTreeView.
11929  *
11930  * Recursively collapses all visible, expanded nodes in @tree_view.
11931  **/
11932 void
11933 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11934 {
11935   GtkRBTree *tree;
11936   GtkRBNode *node;
11937   GtkTreePath *path;
11938   gint *indices;
11939
11940   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11941
11942   if (tree_view->priv->tree == NULL)
11943     return;
11944
11945   path = gtk_tree_path_new ();
11946   gtk_tree_path_down (path);
11947   indices = gtk_tree_path_get_indices (path);
11948
11949   tree = tree_view->priv->tree;
11950   node = tree->root;
11951   while (node && node->left != tree->nil)
11952     node = node->left;
11953
11954   while (node)
11955     {
11956       if (node->children)
11957         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11958       indices[0]++;
11959       node = _gtk_rbtree_next (tree, node);
11960     }
11961
11962   gtk_tree_path_free (path);
11963 }
11964
11965 /**
11966  * gtk_tree_view_expand_to_path:
11967  * @tree_view: A #GtkTreeView.
11968  * @path: path to a row.
11969  *
11970  * Expands the row at @path. This will also expand all parent rows of
11971  * @path as necessary.
11972  *
11973  * Since: 2.2
11974  **/
11975 void
11976 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11977                               GtkTreePath *path)
11978 {
11979   gint i, depth;
11980   gint *indices;
11981   GtkTreePath *tmp;
11982
11983   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11984   g_return_if_fail (path != NULL);
11985
11986   depth = gtk_tree_path_get_depth (path);
11987   indices = gtk_tree_path_get_indices (path);
11988
11989   tmp = gtk_tree_path_new ();
11990   g_return_if_fail (tmp != NULL);
11991
11992   for (i = 0; i < depth; i++)
11993     {
11994       gtk_tree_path_append_index (tmp, indices[i]);
11995       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11996     }
11997
11998   gtk_tree_path_free (tmp);
11999 }
12000
12001 /* FIXME the bool return values for expand_row and collapse_row are
12002  * not analagous; they should be TRUE if the row had children and
12003  * was not already in the requested state.
12004  */
12005
12006
12007 static gboolean
12008 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
12009                                GtkTreePath *path,
12010                                GtkRBTree   *tree,
12011                                GtkRBNode   *node,
12012                                gboolean     open_all,
12013                                gboolean     animate)
12014 {
12015   GtkTreeIter iter;
12016   GtkTreeIter temp;
12017   gboolean expand;
12018
12019   if (animate)
12020     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12021                   "gtk-enable-animations", &animate,
12022                   NULL);
12023
12024   remove_auto_expand_timeout (tree_view);
12025
12026   if (node->children && !open_all)
12027     return FALSE;
12028
12029   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
12030     return FALSE;
12031
12032   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12033   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12034     return FALSE;
12035
12036
12037    if (node->children && open_all)
12038     {
12039       gboolean retval = FALSE;
12040       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12041
12042       gtk_tree_path_append_index (tmp_path, 0);
12043       tree = node->children;
12044       node = tree->root;
12045       while (node->left != tree->nil)
12046         node = node->left;
12047       /* try to expand the children */
12048       do
12049         {
12050          gboolean t;
12051          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12052                                             TRUE, animate);
12053          if (t)
12054            retval = TRUE;
12055
12056          gtk_tree_path_next (tmp_path);
12057          node = _gtk_rbtree_next (tree, node);
12058        }
12059       while (node != NULL);
12060
12061       gtk_tree_path_free (tmp_path);
12062
12063       return retval;
12064     }
12065
12066   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12067
12068   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12069     return FALSE;
12070
12071   if (expand)
12072     return FALSE;
12073
12074   node->children = _gtk_rbtree_new ();
12075   node->children->parent_tree = tree;
12076   node->children->parent_node = node;
12077
12078   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12079
12080   gtk_tree_view_build_tree (tree_view,
12081                             node->children,
12082                             &temp,
12083                             gtk_tree_path_get_depth (path) + 1,
12084                             open_all);
12085
12086   remove_expand_collapse_timeout (tree_view);
12087
12088   if (animate)
12089     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12090
12091   install_presize_handler (tree_view);
12092
12093   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12094   if (open_all && node->children)
12095     {
12096       _gtk_rbtree_traverse (node->children,
12097                             node->children->root,
12098                             G_PRE_ORDER,
12099                             gtk_tree_view_expand_all_emission_helper,
12100                             tree_view);
12101     }
12102   return TRUE;
12103 }
12104
12105
12106 /**
12107  * gtk_tree_view_expand_row:
12108  * @tree_view: a #GtkTreeView
12109  * @path: path to a row
12110  * @open_all: whether to recursively expand, or just expand immediate children
12111  *
12112  * Opens the row so its children are visible.
12113  *
12114  * Return value: %TRUE if the row existed and had children
12115  **/
12116 gboolean
12117 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12118                           GtkTreePath *path,
12119                           gboolean     open_all)
12120 {
12121   GtkRBTree *tree;
12122   GtkRBNode *node;
12123
12124   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12125   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12126   g_return_val_if_fail (path != NULL, FALSE);
12127
12128   if (_gtk_tree_view_find_node (tree_view,
12129                                 path,
12130                                 &tree,
12131                                 &node))
12132     return FALSE;
12133
12134   if (tree != NULL)
12135     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12136   else
12137     return FALSE;
12138 }
12139
12140 static gboolean
12141 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12142                                  GtkTreePath *path,
12143                                  GtkRBTree   *tree,
12144                                  GtkRBNode   *node,
12145                                  gboolean     animate)
12146 {
12147   GtkTreeIter iter;
12148   GtkTreeIter children;
12149   gboolean collapse;
12150   gint x, y;
12151   GList *list;
12152   GdkWindow *child, *parent;
12153
12154   if (animate)
12155     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12156                   "gtk-enable-animations", &animate,
12157                   NULL);
12158
12159   remove_auto_expand_timeout (tree_view);
12160
12161   if (node->children == NULL)
12162     return FALSE;
12163
12164   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12165
12166   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12167
12168   if (collapse)
12169     return FALSE;
12170
12171   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12172    * a chance to prelight the correct node below */
12173
12174   if (tree_view->priv->prelight_tree)
12175     {
12176       GtkRBTree *parent_tree;
12177       GtkRBNode *parent_node;
12178
12179       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12180       parent_node = tree_view->priv->prelight_tree->parent_node;
12181       while (parent_tree)
12182         {
12183           if (parent_tree == tree && parent_node == node)
12184             {
12185               ensure_unprelighted (tree_view);
12186               break;
12187             }
12188           parent_node = parent_tree->parent_node;
12189           parent_tree = parent_tree->parent_tree;
12190         }
12191     }
12192
12193   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12194
12195   for (list = tree_view->priv->columns; list; list = list->next)
12196     {
12197       GtkTreeViewColumn *column = list->data;
12198
12199       if (column->visible == FALSE)
12200         continue;
12201       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12202         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12203     }
12204
12205   if (tree_view->priv->destroy_count_func)
12206     {
12207       GtkTreePath *child_path;
12208       gint child_count = 0;
12209       child_path = gtk_tree_path_copy (path);
12210       gtk_tree_path_down (child_path);
12211       if (node->children)
12212         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12213       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12214       gtk_tree_path_free (child_path);
12215     }
12216
12217   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12218     {
12219       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12220
12221       if (gtk_tree_path_is_ancestor (path, cursor_path))
12222         {
12223           gtk_tree_row_reference_free (tree_view->priv->cursor);
12224           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12225                                                                       tree_view->priv->model,
12226                                                                       path);
12227         }
12228       gtk_tree_path_free (cursor_path);
12229     }
12230
12231   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12232     {
12233       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12234       if (gtk_tree_path_is_ancestor (path, anchor_path))
12235         {
12236           gtk_tree_row_reference_free (tree_view->priv->anchor);
12237           tree_view->priv->anchor = NULL;
12238         }
12239       gtk_tree_path_free (anchor_path);
12240     }
12241
12242   /* Stop a pending double click */
12243   tree_view->priv->last_button_x = -1;
12244   tree_view->priv->last_button_y = -1;
12245
12246   remove_expand_collapse_timeout (tree_view);
12247
12248   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12249     {
12250       _gtk_rbtree_remove (node->children);
12251       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12252     }
12253   else
12254     _gtk_rbtree_remove (node->children);
12255
12256   if (animate)
12257     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12258
12259   if (GTK_WIDGET_MAPPED (tree_view))
12260     {
12261       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12262     }
12263
12264   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12265
12266   if (GTK_WIDGET_MAPPED (tree_view))
12267     {
12268       /* now that we've collapsed all rows, we want to try to set the prelight
12269        * again. To do this, we fake a motion event and send it to ourselves. */
12270
12271       child = tree_view->priv->bin_window;
12272       parent = gdk_window_get_parent (child);
12273
12274       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12275         {
12276           GdkEventMotion event;
12277           gint child_x, child_y;
12278
12279           gdk_window_get_position (child, &child_x, &child_y);
12280
12281           event.window = tree_view->priv->bin_window;
12282           event.x = x - child_x;
12283           event.y = y - child_y;
12284
12285           /* despite the fact this isn't a real event, I'm almost positive it will
12286            * never trigger a drag event.  maybe_drag is the only function that uses
12287            * more than just event.x and event.y. */
12288           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12289         }
12290     }
12291
12292   return TRUE;
12293 }
12294
12295 /**
12296  * gtk_tree_view_collapse_row:
12297  * @tree_view: a #GtkTreeView
12298  * @path: path to a row in the @tree_view
12299  *
12300  * Collapses a row (hides its child rows, if they exist).
12301  *
12302  * Return value: %TRUE if the row was collapsed.
12303  **/
12304 gboolean
12305 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12306                             GtkTreePath *path)
12307 {
12308   GtkRBTree *tree;
12309   GtkRBNode *node;
12310
12311   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12312   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12313   g_return_val_if_fail (path != NULL, FALSE);
12314
12315   if (_gtk_tree_view_find_node (tree_view,
12316                                 path,
12317                                 &tree,
12318                                 &node))
12319     return FALSE;
12320
12321   if (tree == NULL || node->children == NULL)
12322     return FALSE;
12323
12324   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12325 }
12326
12327 static void
12328 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12329                                         GtkRBTree              *tree,
12330                                         GtkTreePath            *path,
12331                                         GtkTreeViewMappingFunc  func,
12332                                         gpointer                user_data)
12333 {
12334   GtkRBNode *node;
12335
12336   if (tree == NULL || tree->root == NULL)
12337     return;
12338
12339   node = tree->root;
12340
12341   while (node && node->left != tree->nil)
12342     node = node->left;
12343
12344   while (node)
12345     {
12346       if (node->children)
12347         {
12348           (* func) (tree_view, path, user_data);
12349           gtk_tree_path_down (path);
12350           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12351           gtk_tree_path_up (path);
12352         }
12353       gtk_tree_path_next (path);
12354       node = _gtk_rbtree_next (tree, node);
12355     }
12356 }
12357
12358 /**
12359  * gtk_tree_view_map_expanded_rows:
12360  * @tree_view: A #GtkTreeView
12361  * @func: A function to be called
12362  * @data: User data to be passed to the function.
12363  *
12364  * Calls @func on all expanded rows.
12365  **/
12366 void
12367 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12368                                  GtkTreeViewMappingFunc  func,
12369                                  gpointer                user_data)
12370 {
12371   GtkTreePath *path;
12372
12373   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12374   g_return_if_fail (func != NULL);
12375
12376   path = gtk_tree_path_new_first ();
12377
12378   gtk_tree_view_map_expanded_rows_helper (tree_view,
12379                                           tree_view->priv->tree,
12380                                           path, func, user_data);
12381
12382   gtk_tree_path_free (path);
12383 }
12384
12385 /**
12386  * gtk_tree_view_row_expanded:
12387  * @tree_view: A #GtkTreeView.
12388  * @path: A #GtkTreePath to test expansion state.
12389  *
12390  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12391  *
12392  * Return value: %TRUE if #path is expanded.
12393  **/
12394 gboolean
12395 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12396                             GtkTreePath *path)
12397 {
12398   GtkRBTree *tree;
12399   GtkRBNode *node;
12400
12401   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12402   g_return_val_if_fail (path != NULL, FALSE);
12403
12404   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12405
12406   if (node == NULL)
12407     return FALSE;
12408
12409   return (node->children != NULL);
12410 }
12411
12412 /**
12413  * gtk_tree_view_get_reorderable:
12414  * @tree_view: a #GtkTreeView
12415  *
12416  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12417  * gtk_tree_view_set_reorderable().
12418  *
12419  * Return value: %TRUE if the tree can be reordered.
12420  **/
12421 gboolean
12422 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12423 {
12424   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12425
12426   return tree_view->priv->reorderable;
12427 }
12428
12429 /**
12430  * gtk_tree_view_set_reorderable:
12431  * @tree_view: A #GtkTreeView.
12432  * @reorderable: %TRUE, if the tree can be reordered.
12433  *
12434  * This function is a convenience function to allow you to reorder
12435  * models that support the #GtkDragSourceIface and the
12436  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12437  * these.  If @reorderable is %TRUE, then the user can reorder the
12438  * model by dragging and dropping rows. The developer can listen to
12439  * these changes by connecting to the model's row_inserted and
12440  * row_deleted signals. The reordering is implemented by setting up
12441  * the tree view as a drag source and destination. Therefore, drag and
12442  * drop can not be used in a reorderable view for any other purpose.
12443  *
12444  * This function does not give you any degree of control over the order -- any
12445  * reordering is allowed.  If more control is needed, you should probably
12446  * handle drag and drop manually.
12447  **/
12448 void
12449 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12450                                gboolean     reorderable)
12451 {
12452   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12453
12454   reorderable = reorderable != FALSE;
12455
12456   if (tree_view->priv->reorderable == reorderable)
12457     return;
12458
12459   if (reorderable)
12460     {
12461       const GtkTargetEntry row_targets[] = {
12462         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12463       };
12464
12465       gtk_tree_view_enable_model_drag_source (tree_view,
12466                                               GDK_BUTTON1_MASK,
12467                                               row_targets,
12468                                               G_N_ELEMENTS (row_targets),
12469                                               GDK_ACTION_MOVE);
12470       gtk_tree_view_enable_model_drag_dest (tree_view,
12471                                             row_targets,
12472                                             G_N_ELEMENTS (row_targets),
12473                                             GDK_ACTION_MOVE);
12474     }
12475   else
12476     {
12477       gtk_tree_view_unset_rows_drag_source (tree_view);
12478       gtk_tree_view_unset_rows_drag_dest (tree_view);
12479     }
12480
12481   tree_view->priv->reorderable = reorderable;
12482
12483   g_object_notify (G_OBJECT (tree_view), "reorderable");
12484 }
12485
12486 static void
12487 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12488                                GtkTreePath     *path,
12489                                gboolean         clear_and_select,
12490                                gboolean         clamp_node)
12491 {
12492   GtkRBTree *tree = NULL;
12493   GtkRBNode *node = NULL;
12494
12495   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12496     {
12497       GtkTreePath *cursor_path;
12498       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12499       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12500       gtk_tree_path_free (cursor_path);
12501     }
12502
12503   gtk_tree_row_reference_free (tree_view->priv->cursor);
12504   tree_view->priv->cursor = NULL;
12505
12506   /* One cannot set the cursor on a separator.   Also, if
12507    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12508    * before finding the tree and node belonging to path.  The
12509    * path maps to a non-existing path and we will silently bail out.
12510    * We unset tree and node to avoid further processing.
12511    */
12512   if (!row_is_separator (tree_view, NULL, path)
12513       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12514     {
12515       tree_view->priv->cursor =
12516           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12517                                             tree_view->priv->model,
12518                                             path);
12519     }
12520   else
12521     {
12522       tree = NULL;
12523       node = NULL;
12524     }
12525
12526   if (tree != NULL)
12527     {
12528       GtkRBTree *new_tree = NULL;
12529       GtkRBNode *new_node = NULL;
12530
12531       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12532         {
12533           GtkTreeSelectMode mode = 0;
12534
12535           if (tree_view->priv->ctrl_pressed)
12536             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12537           if (tree_view->priv->shift_pressed)
12538             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12539
12540           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12541                                                     node, tree, path, mode,
12542                                                     FALSE);
12543         }
12544
12545       /* We have to re-find tree and node here again, somebody might have
12546        * cleared the node or the whole tree in the GtkTreeSelection::changed
12547        * callback. If the nodes differ we bail out here.
12548        */
12549       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12550
12551       if (tree != new_tree || node != new_node)
12552         return;
12553
12554       if (clamp_node)
12555         {
12556           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12557           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12558         }
12559     }
12560
12561   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12562 }
12563
12564 /**
12565  * gtk_tree_view_get_cursor:
12566  * @tree_view: A #GtkTreeView
12567  * @path: A pointer to be filled with the current cursor path, or %NULL
12568  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12569  *
12570  * Fills in @path and @focus_column with the current path and focus column.  If
12571  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12572  * currently has focus, then *@focus_column will be %NULL.
12573  *
12574  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12575  * you are done with it.
12576  **/
12577 void
12578 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12579                           GtkTreePath       **path,
12580                           GtkTreeViewColumn **focus_column)
12581 {
12582   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12583
12584   if (path)
12585     {
12586       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12587         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12588       else
12589         *path = NULL;
12590     }
12591
12592   if (focus_column)
12593     {
12594       *focus_column = tree_view->priv->focus_column;
12595     }
12596 }
12597
12598 /**
12599  * gtk_tree_view_set_cursor:
12600  * @tree_view: A #GtkTreeView
12601  * @path: A #GtkTreePath
12602  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12603  * @start_editing: %TRUE if the specified cell should start being edited.
12604  *
12605  * Sets the current keyboard focus to be at @path, and selects it.  This is
12606  * useful when you want to focus the user's attention on a particular row.  If
12607  * @focus_column is not %NULL, then focus is given to the column specified by
12608  * it. Additionally, if @focus_column is specified, and @start_editing is
12609  * %TRUE, then editing should be started in the specified cell.
12610  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12611  * in order to give keyboard focus to the widget.  Please note that editing
12612  * can only happen when the widget is realized.
12613  *
12614  * If @path is invalid for @model, the current cursor (if any) will be unset
12615  * and the function will return without failing.
12616  **/
12617 void
12618 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12619                           GtkTreePath       *path,
12620                           GtkTreeViewColumn *focus_column,
12621                           gboolean           start_editing)
12622 {
12623   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12624                                     NULL, start_editing);
12625 }
12626
12627 /**
12628  * gtk_tree_view_set_cursor_on_cell:
12629  * @tree_view: A #GtkTreeView
12630  * @path: A #GtkTreePath
12631  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12632  * @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
12633  * @start_editing: %TRUE if the specified cell should start being edited.
12634  *
12635  * Sets the current keyboard focus to be at @path, and selects it.  This is
12636  * useful when you want to focus the user's attention on a particular row.  If
12637  * @focus_column is not %NULL, then focus is given to the column specified by
12638  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12639  * contains 2 or more editable or activatable cells, then focus is given to
12640  * the cell specified by @focus_cell. Additionally, if @focus_column is
12641  * specified, and @start_editing is %TRUE, then editing should be started in
12642  * the specified cell.  This function is often followed by
12643  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12644  * widget.  Please note that editing can only happen when the widget is
12645  * realized.
12646  *
12647  * If @path is invalid for @model, the current cursor (if any) will be unset
12648  * and the function will return without failing.
12649  *
12650  * Since: 2.2
12651  **/
12652 void
12653 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12654                                   GtkTreePath       *path,
12655                                   GtkTreeViewColumn *focus_column,
12656                                   GtkCellRenderer   *focus_cell,
12657                                   gboolean           start_editing)
12658 {
12659   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12660   g_return_if_fail (path != NULL);
12661   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12662
12663   if (!tree_view->priv->model)
12664     return;
12665
12666   if (focus_cell)
12667     {
12668       g_return_if_fail (focus_column);
12669       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12670     }
12671
12672   /* cancel the current editing, if it exists */
12673   if (tree_view->priv->edited_column &&
12674       tree_view->priv->edited_column->editable_widget)
12675     gtk_tree_view_stop_editing (tree_view, TRUE);
12676
12677   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12678
12679   if (focus_column && focus_column->visible)
12680     {
12681       GList *list;
12682       gboolean column_in_tree = FALSE;
12683
12684       for (list = tree_view->priv->columns; list; list = list->next)
12685         if (list->data == focus_column)
12686           {
12687             column_in_tree = TRUE;
12688             break;
12689           }
12690       g_return_if_fail (column_in_tree);
12691       tree_view->priv->focus_column = focus_column;
12692       if (focus_cell)
12693         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12694       if (start_editing)
12695         gtk_tree_view_start_editing (tree_view, path);
12696     }
12697 }
12698
12699 /**
12700  * gtk_tree_view_get_bin_window:
12701  * @tree_view: A #GtkTreeView
12702  *
12703  * Returns the window that @tree_view renders to.  This is used primarily to
12704  * compare to <literal>event->window</literal> to confirm that the event on
12705  * @tree_view is on the right window.
12706  *
12707  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12708  **/
12709 GdkWindow *
12710 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12711 {
12712   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12713
12714   return tree_view->priv->bin_window;
12715 }
12716
12717 /**
12718  * gtk_tree_view_get_path_at_pos:
12719  * @tree_view: A #GtkTreeView.
12720  * @x: The x position to be identified (relative to bin_window).
12721  * @y: The y position to be identified (relative to bin_window).
12722  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12723  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12724  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12725  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12726  *
12727  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12728  * (please see gtk_tree_view_get_bin_window()).
12729  * That is, @x and @y are relative to an events coordinates. @x and @y must
12730  * come from an event on the @tree_view only where <literal>event->window ==
12731  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12732  * things like popup menus. If @path is non-%NULL, then it will be filled
12733  * with the #GtkTreePath at that point.  This path should be freed with
12734  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12735  * with the column at that point.  @cell_x and @cell_y return the coordinates
12736  * relative to the cell background (i.e. the @background_area passed to
12737  * gtk_cell_renderer_render()).  This function is only meaningful if
12738  * @tree_view is realized.  Therefore this function will always return %FALSE
12739  * if @tree_view is not realized or does not have a model.
12740  *
12741  * For converting widget coordinates (eg. the ones you get from
12742  * GtkWidget::query-tooltip), please see
12743  * gtk_tree_view_convert_widget_to_bin_window_coords().
12744  *
12745  * Return value: %TRUE if a row exists at that coordinate.
12746  **/
12747 gboolean
12748 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12749                                gint                x,
12750                                gint                y,
12751                                GtkTreePath       **path,
12752                                GtkTreeViewColumn **column,
12753                                gint               *cell_x,
12754                                gint               *cell_y)
12755 {
12756   GtkRBTree *tree;
12757   GtkRBNode *node;
12758   gint y_offset;
12759
12760   g_return_val_if_fail (tree_view != NULL, FALSE);
12761
12762   if (path)
12763     *path = NULL;
12764   if (column)
12765     *column = NULL;
12766
12767   if (tree_view->priv->bin_window == NULL)
12768     return FALSE;
12769
12770   if (tree_view->priv->tree == NULL)
12771     return FALSE;
12772
12773   if (x > tree_view->priv->hadjustment->upper)
12774     return FALSE;
12775
12776   if (x < 0 || y < 0)
12777     return FALSE;
12778
12779   if (column || cell_x)
12780     {
12781       GtkTreeViewColumn *tmp_column;
12782       GtkTreeViewColumn *last_column = NULL;
12783       GList *list;
12784       gint remaining_x = x;
12785       gboolean found = FALSE;
12786       gboolean rtl;
12787
12788       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12789       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12790            list;
12791            list = (rtl ? list->prev : list->next))
12792         {
12793           tmp_column = list->data;
12794
12795           if (tmp_column->visible == FALSE)
12796             continue;
12797
12798           last_column = tmp_column;
12799           if (remaining_x <= tmp_column->width)
12800             {
12801               found = TRUE;
12802
12803               if (column)
12804                 *column = tmp_column;
12805
12806               if (cell_x)
12807                 *cell_x = remaining_x;
12808
12809               break;
12810             }
12811           remaining_x -= tmp_column->width;
12812         }
12813
12814       /* If found is FALSE and there is a last_column, then it the remainder
12815        * space is in that area
12816        */
12817       if (!found)
12818         {
12819           if (last_column)
12820             {
12821               if (column)
12822                 *column = last_column;
12823
12824               if (cell_x)
12825                 *cell_x = last_column->width + remaining_x;
12826             }
12827           else
12828             {
12829               return FALSE;
12830             }
12831         }
12832     }
12833
12834   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12835                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12836                                       &tree, &node);
12837
12838   if (tree == NULL)
12839     return FALSE;
12840
12841   if (cell_y)
12842     *cell_y = y_offset;
12843
12844   if (path)
12845     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12846
12847   return TRUE;
12848 }
12849
12850
12851 /**
12852  * gtk_tree_view_get_cell_area:
12853  * @tree_view: a #GtkTreeView
12854  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12855  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12856  * @rect: rectangle to fill with cell rect
12857  *
12858  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12859  * row specified by @path and the column specified by @column.  If @path is
12860  * %NULL, or points to a path not currently displayed, the @y and @height fields
12861  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12862  * fields will be filled with 0.  The sum of all cell rects does not cover the
12863  * entire tree; there are extra pixels in between rows, for example. The
12864  * returned rectangle is equivalent to the @cell_area passed to
12865  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12866  * realized.
12867  **/
12868 void
12869 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12870                              GtkTreePath        *path,
12871                              GtkTreeViewColumn  *column,
12872                              GdkRectangle       *rect)
12873 {
12874   GtkRBTree *tree = NULL;
12875   GtkRBNode *node = NULL;
12876   gint vertical_separator;
12877   gint horizontal_separator;
12878
12879   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12880   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12881   g_return_if_fail (rect != NULL);
12882   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12883   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12884
12885   gtk_widget_style_get (GTK_WIDGET (tree_view),
12886                         "vertical-separator", &vertical_separator,
12887                         "horizontal-separator", &horizontal_separator,
12888                         NULL);
12889
12890   rect->x = 0;
12891   rect->y = 0;
12892   rect->width = 0;
12893   rect->height = 0;
12894
12895   if (column)
12896     {
12897       rect->x = column->button->allocation.x + horizontal_separator/2;
12898       rect->width = column->button->allocation.width - horizontal_separator;
12899     }
12900
12901   if (path)
12902     {
12903       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12904
12905       /* Get vertical coords */
12906       if ((!ret && tree == NULL) || ret)
12907         return;
12908
12909       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12910       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12911
12912       if (column &&
12913           gtk_tree_view_is_expander_column (tree_view, column))
12914         {
12915           gint depth = gtk_tree_path_get_depth (path);
12916           gboolean rtl;
12917
12918           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12919
12920           if (!rtl)
12921             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12922           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12923
12924           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12925             {
12926               if (!rtl)
12927                 rect->x += depth * tree_view->priv->expander_size;
12928               rect->width -= depth * tree_view->priv->expander_size;
12929             }
12930
12931           rect->width = MAX (rect->width, 0);
12932         }
12933     }
12934 }
12935
12936 /**
12937  * gtk_tree_view_get_background_area:
12938  * @tree_view: a #GtkTreeView
12939  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12940  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12941  * @rect: rectangle to fill with cell background rect
12942  *
12943  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12944  * row specified by @path and the column specified by @column.  If @path is
12945  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12946  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12947  * fields will be filled with 0.  The returned rectangle is equivalent to the
12948  * @background_area passed to gtk_cell_renderer_render().  These background
12949  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12950  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12951  * itself, excluding surrounding borders and the tree expander area.
12952  *
12953  **/
12954 void
12955 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12956                                    GtkTreePath        *path,
12957                                    GtkTreeViewColumn  *column,
12958                                    GdkRectangle       *rect)
12959 {
12960   GtkRBTree *tree = NULL;
12961   GtkRBNode *node = NULL;
12962
12963   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12964   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12965   g_return_if_fail (rect != NULL);
12966
12967   rect->x = 0;
12968   rect->y = 0;
12969   rect->width = 0;
12970   rect->height = 0;
12971
12972   if (path)
12973     {
12974       /* Get vertical coords */
12975
12976       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12977           tree == NULL)
12978         return;
12979
12980       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12981
12982       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12983     }
12984
12985   if (column)
12986     {
12987       gint x2 = 0;
12988
12989       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12990       rect->width = x2 - rect->x;
12991     }
12992 }
12993
12994 /**
12995  * gtk_tree_view_get_visible_rect:
12996  * @tree_view: a #GtkTreeView
12997  * @visible_rect: rectangle to fill
12998  *
12999  * Fills @visible_rect with the currently-visible region of the
13000  * buffer, in tree coordinates. Convert to bin_window coordinates with
13001  * gtk_tree_view_convert_tree_to_bin_window_coords().
13002  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
13003  * scrollable area of the tree.
13004  **/
13005 void
13006 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
13007                                 GdkRectangle *visible_rect)
13008 {
13009   GtkWidget *widget;
13010
13011   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13012
13013   widget = GTK_WIDGET (tree_view);
13014
13015   if (visible_rect)
13016     {
13017       visible_rect->x = tree_view->priv->hadjustment->value;
13018       visible_rect->y = tree_view->priv->vadjustment->value;
13019       visible_rect->width = widget->allocation.width;
13020       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13021     }
13022 }
13023
13024 /**
13025  * gtk_tree_view_widget_to_tree_coords:
13026  * @tree_view: a #GtkTreeView
13027  * @wx: X coordinate relative to bin_window
13028  * @wy: Y coordinate relative to bin_window
13029  * @tx: return location for tree X coordinate
13030  * @ty: return location for tree Y coordinate
13031  *
13032  * Converts bin_window coordinates to coordinates for the
13033  * tree (the full scrollable area of the tree).
13034  *
13035  * Deprecated: 2.12: Due to historial reasons the name of this function is
13036  * incorrect.  For converting coordinates relative to the widget to
13037  * bin_window coordinates, please see
13038  * gtk_tree_view_convert_widget_to_bin_window_coords().
13039  *
13040  **/
13041 void
13042 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
13043                                       gint         wx,
13044                                       gint         wy,
13045                                       gint        *tx,
13046                                       gint        *ty)
13047 {
13048   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13049
13050   if (tx)
13051     *tx = wx + tree_view->priv->hadjustment->value;
13052   if (ty)
13053     *ty = wy + tree_view->priv->dy;
13054 }
13055
13056 /**
13057  * gtk_tree_view_tree_to_widget_coords:
13058  * @tree_view: a #GtkTreeView
13059  * @tx: tree X coordinate
13060  * @ty: tree Y coordinate
13061  * @wx: return location for X coordinate relative to bin_window
13062  * @wy: return location for Y coordinate relative to bin_window
13063  *
13064  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13065  * to bin_window coordinates.
13066  *
13067  * Deprecated: 2.12: Due to historial reasons the name of this function is
13068  * incorrect.  For converting bin_window coordinates to coordinates relative
13069  * to bin_window, please see
13070  * gtk_tree_view_convert_bin_window_to_widget_coords().
13071  *
13072  **/
13073 void
13074 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13075                                      gint         tx,
13076                                      gint         ty,
13077                                      gint        *wx,
13078                                      gint        *wy)
13079 {
13080   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13081
13082   if (wx)
13083     *wx = tx - tree_view->priv->hadjustment->value;
13084   if (wy)
13085     *wy = ty - tree_view->priv->dy;
13086 }
13087
13088
13089 /**
13090  * gtk_tree_view_convert_widget_to_tree_coords:
13091  * @tree_view: a #GtkTreeView
13092  * @wx: X coordinate relative to the widget
13093  * @wy: Y coordinate relative to the widget
13094  * @tx: return location for tree X coordinate
13095  * @ty: return location for tree Y coordinate
13096  *
13097  * Converts widget coordinates to coordinates for the
13098  * tree (the full scrollable area of the tree).
13099  *
13100  * Since: 2.12
13101  **/
13102 void
13103 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13104                                              gint         wx,
13105                                              gint         wy,
13106                                              gint        *tx,
13107                                              gint        *ty)
13108 {
13109   gint x, y;
13110
13111   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13112
13113   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13114                                                      wx, wy,
13115                                                      &x, &y);
13116   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13117                                                    x, y,
13118                                                    tx, ty);
13119 }
13120
13121 /**
13122  * gtk_tree_view_convert_tree_to_widget_coords:
13123  * @tree_view: a #GtkTreeView
13124  * @tx: X coordinate relative to the tree
13125  * @ty: Y coordinate relative to the tree
13126  * @wx: return location for widget X coordinate
13127  * @wy: return location for widget Y coordinate
13128  *
13129  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13130  * to widget coordinates.
13131  *
13132  * Since: 2.12
13133  **/
13134 void
13135 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13136                                              gint         tx,
13137                                              gint         ty,
13138                                              gint        *wx,
13139                                              gint        *wy)
13140 {
13141   gint x, y;
13142
13143   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13144
13145   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13146                                                    tx, ty,
13147                                                    &x, &y);
13148   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13149                                                      x, y,
13150                                                      wx, wy);
13151 }
13152
13153 /**
13154  * gtk_tree_view_convert_widget_to_bin_window_coords:
13155  * @tree_view: a #GtkTreeView
13156  * @wx: X coordinate relative to the widget
13157  * @wy: Y coordinate relative to the widget
13158  * @bx: return location for bin_window X coordinate
13159  * @by: return location for bin_window Y coordinate
13160  *
13161  * Converts widget coordinates to coordinates for the bin_window
13162  * (see gtk_tree_view_get_bin_window()).
13163  *
13164  * Since: 2.12
13165  **/
13166 void
13167 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13168                                                    gint         wx,
13169                                                    gint         wy,
13170                                                    gint        *bx,
13171                                                    gint        *by)
13172 {
13173   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13174
13175   if (bx)
13176     *bx = wx + tree_view->priv->hadjustment->value;
13177   if (by)
13178     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13179 }
13180
13181 /**
13182  * gtk_tree_view_convert_bin_window_to_widget_coords:
13183  * @tree_view: a #GtkTreeView
13184  * @bx: bin_window X coordinate
13185  * @by: bin_window Y coordinate
13186  * @wx: return location for widget X coordinate
13187  * @wy: return location for widget Y coordinate
13188  *
13189  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13190  * to widget relative coordinates.
13191  *
13192  * Since: 2.12
13193  **/
13194 void
13195 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13196                                                    gint         bx,
13197                                                    gint         by,
13198                                                    gint        *wx,
13199                                                    gint        *wy)
13200 {
13201   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13202
13203   if (wx)
13204     *wx = bx - tree_view->priv->hadjustment->value;
13205   if (wy)
13206     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13207 }
13208
13209 /**
13210  * gtk_tree_view_convert_tree_to_bin_window_coords:
13211  * @tree_view: a #GtkTreeView
13212  * @tx: tree X coordinate
13213  * @ty: tree Y coordinate
13214  * @bx: return location for X coordinate relative to bin_window
13215  * @by: return location for Y coordinate relative to bin_window
13216  *
13217  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13218  * to bin_window coordinates.
13219  *
13220  * Since: 2.12
13221  **/
13222 void
13223 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13224                                                  gint         tx,
13225                                                  gint         ty,
13226                                                  gint        *bx,
13227                                                  gint        *by)
13228 {
13229   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13230
13231   if (bx)
13232     *bx = tx;
13233   if (by)
13234     *by = ty - tree_view->priv->dy;
13235 }
13236
13237 /**
13238  * gtk_tree_view_convert_bin_window_to_tree_coords:
13239  * @tree_view: a #GtkTreeView
13240  * @bx: X coordinate relative to bin_window
13241  * @by: Y coordinate relative to bin_window
13242  * @tx: return location for tree X coordinate
13243  * @ty: return location for tree Y coordinate
13244  *
13245  * Converts bin_window coordinates to coordinates for the
13246  * tree (the full scrollable area of the tree).
13247  *
13248  * Since: 2.12
13249  **/
13250 void
13251 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13252                                                  gint         bx,
13253                                                  gint         by,
13254                                                  gint        *tx,
13255                                                  gint        *ty)
13256 {
13257   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13258
13259   if (tx)
13260     *tx = bx;
13261   if (ty)
13262     *ty = by + tree_view->priv->dy;
13263 }
13264
13265
13266
13267 /**
13268  * gtk_tree_view_get_visible_range:
13269  * @tree_view: A #GtkTreeView
13270  * @start_path: Return location for start of region, or %NULL.
13271  * @end_path: Return location for end of region, or %NULL.
13272  *
13273  * Sets @start_path and @end_path to be the first and last visible path.
13274  * Note that there may be invisible paths in between.
13275  *
13276  * The paths should be freed with gtk_tree_path_free() after use.
13277  *
13278  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13279  *
13280  * Since: 2.8
13281  **/
13282 gboolean
13283 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13284                                  GtkTreePath **start_path,
13285                                  GtkTreePath **end_path)
13286 {
13287   GtkRBTree *tree;
13288   GtkRBNode *node;
13289   gboolean retval;
13290
13291   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13292
13293   if (!tree_view->priv->tree)
13294     return FALSE;
13295
13296   retval = TRUE;
13297
13298   if (start_path)
13299     {
13300       _gtk_rbtree_find_offset (tree_view->priv->tree,
13301                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13302                                &tree, &node);
13303       if (node)
13304         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13305       else
13306         retval = FALSE;
13307     }
13308
13309   if (end_path)
13310     {
13311       gint y;
13312
13313       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13314         y = tree_view->priv->height - 1;
13315       else
13316         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13317
13318       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13319       if (node)
13320         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13321       else
13322         retval = FALSE;
13323     }
13324
13325   return retval;
13326 }
13327
13328 static void
13329 unset_reorderable (GtkTreeView *tree_view)
13330 {
13331   if (tree_view->priv->reorderable)
13332     {
13333       tree_view->priv->reorderable = FALSE;
13334       g_object_notify (G_OBJECT (tree_view), "reorderable");
13335     }
13336 }
13337
13338 /**
13339  * gtk_tree_view_enable_model_drag_source:
13340  * @tree_view: a #GtkTreeView
13341  * @start_button_mask: Mask of allowed buttons to start drag
13342  * @targets: the table of targets that the drag will support
13343  * @n_targets: the number of items in @targets
13344  * @actions: the bitmask of possible actions for a drag from this
13345  *    widget
13346  *
13347  * Turns @tree_view into a drag source for automatic DND. Calling this
13348  * method sets #GtkTreeView:reorderable to %FALSE.
13349  **/
13350 void
13351 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13352                                         GdkModifierType           start_button_mask,
13353                                         const GtkTargetEntry     *targets,
13354                                         gint                      n_targets,
13355                                         GdkDragAction             actions)
13356 {
13357   TreeViewDragInfo *di;
13358
13359   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13360
13361   gtk_drag_source_set (GTK_WIDGET (tree_view),
13362                        0,
13363                        targets,
13364                        n_targets,
13365                        actions);
13366
13367   di = ensure_info (tree_view);
13368
13369   di->start_button_mask = start_button_mask;
13370   di->source_actions = actions;
13371   di->source_set = TRUE;
13372
13373   unset_reorderable (tree_view);
13374 }
13375
13376 /**
13377  * gtk_tree_view_enable_model_drag_dest:
13378  * @tree_view: a #GtkTreeView
13379  * @targets: the table of targets that the drag will support
13380  * @n_targets: the number of items in @targets
13381  * @actions: the bitmask of possible actions for a drag from this
13382  *    widget
13383  *
13384  * Turns @tree_view into a drop destination for automatic DND. Calling
13385  * this method sets #GtkTreeView:reorderable to %FALSE.
13386  **/
13387 void
13388 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13389                                       const GtkTargetEntry     *targets,
13390                                       gint                      n_targets,
13391                                       GdkDragAction             actions)
13392 {
13393   TreeViewDragInfo *di;
13394
13395   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13396
13397   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13398                      0,
13399                      targets,
13400                      n_targets,
13401                      actions);
13402
13403   di = ensure_info (tree_view);
13404   di->dest_set = TRUE;
13405
13406   unset_reorderable (tree_view);
13407 }
13408
13409 /**
13410  * gtk_tree_view_unset_rows_drag_source:
13411  * @tree_view: a #GtkTreeView
13412  *
13413  * Undoes the effect of
13414  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13415  * #GtkTreeView:reorderable to %FALSE.
13416  **/
13417 void
13418 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13419 {
13420   TreeViewDragInfo *di;
13421
13422   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13423
13424   di = get_info (tree_view);
13425
13426   if (di)
13427     {
13428       if (di->source_set)
13429         {
13430           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13431           di->source_set = FALSE;
13432         }
13433
13434       if (!di->dest_set && !di->source_set)
13435         remove_info (tree_view);
13436     }
13437
13438   unset_reorderable (tree_view);
13439 }
13440
13441 /**
13442  * gtk_tree_view_unset_rows_drag_dest:
13443  * @tree_view: a #GtkTreeView
13444  *
13445  * Undoes the effect of
13446  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13447  * #GtkTreeView:reorderable to %FALSE.
13448  **/
13449 void
13450 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13451 {
13452   TreeViewDragInfo *di;
13453
13454   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13455
13456   di = get_info (tree_view);
13457
13458   if (di)
13459     {
13460       if (di->dest_set)
13461         {
13462           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13463           di->dest_set = FALSE;
13464         }
13465
13466       if (!di->dest_set && !di->source_set)
13467         remove_info (tree_view);
13468     }
13469
13470   unset_reorderable (tree_view);
13471 }
13472
13473 /**
13474  * gtk_tree_view_set_drag_dest_row:
13475  * @tree_view: a #GtkTreeView
13476  * @path: The path of the row to highlight, or %NULL.
13477  * @pos: Specifies whether to drop before, after or into the row
13478  *
13479  * Sets the row that is highlighted for feedback.
13480  **/
13481 void
13482 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13483                                  GtkTreePath            *path,
13484                                  GtkTreeViewDropPosition pos)
13485 {
13486   GtkTreePath *current_dest;
13487
13488   /* Note; this function is exported to allow a custom DND
13489    * implementation, so it can't touch TreeViewDragInfo
13490    */
13491
13492   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13493
13494   current_dest = NULL;
13495
13496   if (tree_view->priv->drag_dest_row)
13497     {
13498       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13499       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13500     }
13501
13502   /* special case a drop on an empty model */
13503   tree_view->priv->empty_view_drop = 0;
13504
13505   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13506       && gtk_tree_path_get_depth (path) == 1
13507       && gtk_tree_path_get_indices (path)[0] == 0)
13508     {
13509       gint n_children;
13510
13511       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13512                                                    NULL);
13513
13514       if (!n_children)
13515         tree_view->priv->empty_view_drop = 1;
13516     }
13517
13518   tree_view->priv->drag_dest_pos = pos;
13519
13520   if (path)
13521     {
13522       tree_view->priv->drag_dest_row =
13523         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13524       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13525     }
13526   else
13527     tree_view->priv->drag_dest_row = NULL;
13528
13529   if (current_dest)
13530     {
13531       GtkRBTree *tree, *new_tree;
13532       GtkRBNode *node, *new_node;
13533
13534       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13535       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13536
13537       if (tree && node)
13538         {
13539           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13540           if (new_tree && new_node)
13541             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13542
13543           _gtk_rbtree_prev_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_tree_path_free (current_dest);
13548     }
13549 }
13550
13551 /**
13552  * gtk_tree_view_get_drag_dest_row:
13553  * @tree_view: a #GtkTreeView
13554  * @path: Return location for the path of the highlighted row, or %NULL.
13555  * @pos: Return location for the drop position, or %NULL
13556  *
13557  * Gets information about the row that is highlighted for feedback.
13558  **/
13559 void
13560 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13561                                  GtkTreePath             **path,
13562                                  GtkTreeViewDropPosition  *pos)
13563 {
13564   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13565
13566   if (path)
13567     {
13568       if (tree_view->priv->drag_dest_row)
13569         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13570       else
13571         {
13572           if (tree_view->priv->empty_view_drop)
13573             *path = gtk_tree_path_new_from_indices (0, -1);
13574           else
13575             *path = NULL;
13576         }
13577     }
13578
13579   if (pos)
13580     *pos = tree_view->priv->drag_dest_pos;
13581 }
13582
13583 /**
13584  * gtk_tree_view_get_dest_row_at_pos:
13585  * @tree_view: a #GtkTreeView
13586  * @drag_x: the position to determine the destination row for
13587  * @drag_y: the position to determine the destination row for
13588  * @path: Return location for the path of the highlighted row, or %NULL.
13589  * @pos: Return location for the drop position, or %NULL
13590  *
13591  * Determines the destination row for a given position.  @drag_x and
13592  * @drag_y are expected to be in widget coordinates.  This function is only
13593  * meaningful if @tree_view is realized.  Therefore this function will always
13594  * return %FALSE if @tree_view is not realized or does not have a model.
13595  *
13596  * Return value: whether there is a row at the given position, %TRUE if this
13597  * is indeed the case.
13598  **/
13599 gboolean
13600 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13601                                    gint                     drag_x,
13602                                    gint                     drag_y,
13603                                    GtkTreePath            **path,
13604                                    GtkTreeViewDropPosition *pos)
13605 {
13606   gint cell_y;
13607   gint bin_x, bin_y;
13608   gdouble offset_into_row;
13609   gdouble third;
13610   GdkRectangle cell;
13611   GtkTreeViewColumn *column = NULL;
13612   GtkTreePath *tmp_path = NULL;
13613
13614   /* Note; this function is exported to allow a custom DND
13615    * implementation, so it can't touch TreeViewDragInfo
13616    */
13617
13618   g_return_val_if_fail (tree_view != NULL, FALSE);
13619   g_return_val_if_fail (drag_x >= 0, FALSE);
13620   g_return_val_if_fail (drag_y >= 0, FALSE);
13621
13622   if (path)
13623     *path = NULL;
13624
13625   if (tree_view->priv->bin_window == NULL)
13626     return FALSE;
13627
13628   if (tree_view->priv->tree == NULL)
13629     return FALSE;
13630
13631   /* If in the top third of a row, we drop before that row; if
13632    * in the bottom third, drop after that row; if in the middle,
13633    * and the row has children, drop into the row.
13634    */
13635   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13636                                                      &bin_x, &bin_y);
13637
13638   if (!gtk_tree_view_get_path_at_pos (tree_view,
13639                                       bin_x,
13640                                       bin_y,
13641                                       &tmp_path,
13642                                       &column,
13643                                       NULL,
13644                                       &cell_y))
13645     return FALSE;
13646
13647   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13648                                      &cell);
13649
13650   offset_into_row = cell_y;
13651
13652   if (path)
13653     *path = tmp_path;
13654   else
13655     gtk_tree_path_free (tmp_path);
13656
13657   tmp_path = NULL;
13658
13659   third = cell.height / 3.0;
13660
13661   if (pos)
13662     {
13663       if (offset_into_row < third)
13664         {
13665           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13666         }
13667       else if (offset_into_row < (cell.height / 2.0))
13668         {
13669           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13670         }
13671       else if (offset_into_row < third * 2.0)
13672         {
13673           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13674         }
13675       else
13676         {
13677           *pos = GTK_TREE_VIEW_DROP_AFTER;
13678         }
13679     }
13680
13681   return TRUE;
13682 }
13683
13684
13685
13686 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13687 /**
13688  * gtk_tree_view_create_row_drag_icon:
13689  * @tree_view: a #GtkTreeView
13690  * @path: a #GtkTreePath in @tree_view
13691  *
13692  * Creates a #GdkPixmap representation of the row at @path.
13693  * This image is used for a drag icon.
13694  *
13695  * Return value: a newly-allocated pixmap of the drag icon.
13696  **/
13697 GdkPixmap *
13698 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13699                                     GtkTreePath  *path)
13700 {
13701   GtkTreeIter   iter;
13702   GtkRBTree    *tree;
13703   GtkRBNode    *node;
13704   gint cell_offset;
13705   GList *list;
13706   GdkRectangle background_area;
13707   GdkRectangle expose_area;
13708   GtkWidget *widget;
13709   gint depth;
13710   /* start drawing inside the black outline */
13711   gint x = 1, y = 1;
13712   GdkDrawable *drawable;
13713   gint bin_window_width;
13714   gboolean is_separator = FALSE;
13715   gboolean rtl;
13716
13717   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13718   g_return_val_if_fail (path != NULL, NULL);
13719
13720   widget = GTK_WIDGET (tree_view);
13721
13722   if (!GTK_WIDGET_REALIZED (tree_view))
13723     return NULL;
13724
13725   depth = gtk_tree_path_get_depth (path);
13726
13727   _gtk_tree_view_find_node (tree_view,
13728                             path,
13729                             &tree,
13730                             &node);
13731
13732   if (tree == NULL)
13733     return NULL;
13734
13735   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13736                                 &iter,
13737                                 path))
13738     return NULL;
13739
13740   is_separator = row_is_separator (tree_view, &iter, NULL);
13741
13742   cell_offset = x;
13743
13744   background_area.y = y;
13745   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13746
13747   gdk_drawable_get_size (tree_view->priv->bin_window,
13748                          &bin_window_width, NULL);
13749
13750   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13751                              bin_window_width + 2,
13752                              background_area.height + 2,
13753                              -1);
13754
13755   expose_area.x = 0;
13756   expose_area.y = 0;
13757   expose_area.width = bin_window_width + 2;
13758   expose_area.height = background_area.height + 2;
13759
13760   gdk_draw_rectangle (drawable,
13761                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13762                       TRUE,
13763                       0, 0,
13764                       bin_window_width + 2,
13765                       background_area.height + 2);
13766
13767   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13768
13769   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13770       list;
13771       list = (rtl ? list->prev : list->next))
13772     {
13773       GtkTreeViewColumn *column = list->data;
13774       GdkRectangle cell_area;
13775       gint vertical_separator;
13776
13777       if (!column->visible)
13778         continue;
13779
13780       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13781                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13782                                                node->children?TRUE:FALSE);
13783
13784       background_area.x = cell_offset;
13785       background_area.width = column->width;
13786
13787       gtk_widget_style_get (widget,
13788                             "vertical-separator", &vertical_separator,
13789                             NULL);
13790
13791       cell_area = background_area;
13792
13793       cell_area.y += vertical_separator / 2;
13794       cell_area.height -= vertical_separator;
13795
13796       if (gtk_tree_view_is_expander_column (tree_view, column))
13797         {
13798           if (!rtl)
13799             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13800           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13801
13802           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13803             {
13804               if (!rtl)
13805                 cell_area.x += depth * tree_view->priv->expander_size;
13806               cell_area.width -= depth * tree_view->priv->expander_size;
13807             }
13808         }
13809
13810       if (gtk_tree_view_column_cell_is_visible (column))
13811         {
13812           if (is_separator)
13813             gtk_paint_hline (widget->style,
13814                              drawable,
13815                              GTK_STATE_NORMAL,
13816                              &cell_area,
13817                              widget,
13818                              NULL,
13819                              cell_area.x,
13820                              cell_area.x + cell_area.width,
13821                              cell_area.y + cell_area.height / 2);
13822           else
13823             _gtk_tree_view_column_cell_render (column,
13824                                                drawable,
13825                                                &background_area,
13826                                                &cell_area,
13827                                                &expose_area,
13828                                                0);
13829         }
13830       cell_offset += column->width;
13831     }
13832
13833   gdk_draw_rectangle (drawable,
13834                       widget->style->black_gc,
13835                       FALSE,
13836                       0, 0,
13837                       bin_window_width + 1,
13838                       background_area.height + 1);
13839
13840   return drawable;
13841 }
13842
13843
13844 /**
13845  * gtk_tree_view_set_destroy_count_func:
13846  * @tree_view: A #GtkTreeView
13847  * @func: Function to be called when a view row is destroyed, or %NULL
13848  * @data: User data to be passed to @func, or %NULL
13849  * @destroy: Destroy notifier for @data, or %NULL
13850  *
13851  * This function should almost never be used.  It is meant for private use by
13852  * ATK for determining the number of visible children that are removed when the
13853  * user collapses a row, or a row is deleted.
13854  **/
13855 void
13856 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13857                                       GtkTreeDestroyCountFunc  func,
13858                                       gpointer                 data,
13859                                       GDestroyNotify           destroy)
13860 {
13861   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13862
13863   if (tree_view->priv->destroy_count_destroy)
13864     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13865
13866   tree_view->priv->destroy_count_func = func;
13867   tree_view->priv->destroy_count_data = data;
13868   tree_view->priv->destroy_count_destroy = destroy;
13869 }
13870
13871
13872 /*
13873  * Interactive search
13874  */
13875
13876 /**
13877  * gtk_tree_view_set_enable_search:
13878  * @tree_view: A #GtkTreeView
13879  * @enable_search: %TRUE, if the user can search interactively
13880  *
13881  * If @enable_search is set, then the user can type in text to search through
13882  * the tree interactively (this is sometimes called "typeahead find").
13883  *
13884  * Note that even if this is %FALSE, the user can still initiate a search
13885  * using the "start-interactive-search" key binding.
13886  */
13887 void
13888 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13889                                  gboolean     enable_search)
13890 {
13891   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13892
13893   enable_search = !!enable_search;
13894
13895   if (tree_view->priv->enable_search != enable_search)
13896     {
13897        tree_view->priv->enable_search = enable_search;
13898        g_object_notify (G_OBJECT (tree_view), "enable-search");
13899     }
13900 }
13901
13902 /**
13903  * gtk_tree_view_get_enable_search:
13904  * @tree_view: A #GtkTreeView
13905  *
13906  * Returns whether or not the tree allows to start interactive searching
13907  * by typing in text.
13908  *
13909  * Return value: whether or not to let the user search interactively
13910  */
13911 gboolean
13912 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13913 {
13914   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13915
13916   return tree_view->priv->enable_search;
13917 }
13918
13919
13920 /**
13921  * gtk_tree_view_get_search_column:
13922  * @tree_view: A #GtkTreeView
13923  *
13924  * Gets the column searched on by the interactive search code.
13925  *
13926  * Return value: the column the interactive search code searches in.
13927  */
13928 gint
13929 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13930 {
13931   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13932
13933   return (tree_view->priv->search_column);
13934 }
13935
13936 /**
13937  * gtk_tree_view_set_search_column:
13938  * @tree_view: A #GtkTreeView
13939  * @column: the column of the model to search in, or -1 to disable searching
13940  *
13941  * Sets @column as the column where the interactive search code should
13942  * search in for the current model.
13943  *
13944  * If the search column is set, users can use the "start-interactive-search"
13945  * key binding to bring up search popup. The enable-search property controls
13946  * whether simply typing text will also start an interactive search.
13947  *
13948  * Note that @column refers to a column of the current model. The search
13949  * column is reset to -1 when the model is changed.
13950  */
13951 void
13952 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13953                                  gint         column)
13954 {
13955   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13956   g_return_if_fail (column >= -1);
13957
13958   if (tree_view->priv->search_column == column)
13959     return;
13960
13961   tree_view->priv->search_column = column;
13962   g_object_notify (G_OBJECT (tree_view), "search-column");
13963 }
13964
13965 /**
13966  * gtk_tree_view_get_search_equal_func:
13967  * @tree_view: A #GtkTreeView
13968  *
13969  * Returns the compare function currently in use.
13970  *
13971  * Return value: the currently used compare function for the search code.
13972  */
13973
13974 GtkTreeViewSearchEqualFunc
13975 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13976 {
13977   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13978
13979   return tree_view->priv->search_equal_func;
13980 }
13981
13982 /**
13983  * gtk_tree_view_set_search_equal_func:
13984  * @tree_view: A #GtkTreeView
13985  * @search_equal_func: the compare function to use during the search
13986  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13987  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13988  *
13989  * Sets the compare function for the interactive search capabilities; note
13990  * that somewhat like strcmp() returning 0 for equality
13991  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13992  **/
13993 void
13994 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13995                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13996                                      gpointer                    search_user_data,
13997                                      GDestroyNotify              search_destroy)
13998 {
13999   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14000   g_return_if_fail (search_equal_func != NULL);
14001
14002   if (tree_view->priv->search_destroy)
14003     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
14004
14005   tree_view->priv->search_equal_func = search_equal_func;
14006   tree_view->priv->search_user_data = search_user_data;
14007   tree_view->priv->search_destroy = search_destroy;
14008   if (tree_view->priv->search_equal_func == NULL)
14009     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
14010 }
14011
14012 /**
14013  * gtk_tree_view_get_search_entry:
14014  * @tree_view: A #GtkTreeView
14015  *
14016  * Returns the #GtkEntry which is currently in use as interactive search
14017  * entry for @tree_view.  In case the built-in entry is being used, %NULL
14018  * will be returned.
14019  *
14020  * Return value: the entry currently in use as search entry.
14021  *
14022  * Since: 2.10
14023  */
14024 GtkEntry *
14025 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14026 {
14027   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14028
14029   if (tree_view->priv->search_custom_entry_set)
14030     return GTK_ENTRY (tree_view->priv->search_entry);
14031
14032   return NULL;
14033 }
14034
14035 /**
14036  * gtk_tree_view_set_search_entry:
14037  * @tree_view: A #GtkTreeView
14038  * @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
14039  *
14040  * Sets the entry which the interactive search code will use for this
14041  * @tree_view.  This is useful when you want to provide a search entry
14042  * in our interface at all time at a fixed position.  Passing %NULL for
14043  * @entry will make the interactive search code use the built-in popup
14044  * entry again.
14045  *
14046  * Since: 2.10
14047  */
14048 void
14049 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14050                                 GtkEntry    *entry)
14051 {
14052   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14053   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
14054
14055   if (tree_view->priv->search_custom_entry_set)
14056     {
14057       if (tree_view->priv->search_entry_changed_id)
14058         {
14059           g_signal_handler_disconnect (tree_view->priv->search_entry,
14060                                        tree_view->priv->search_entry_changed_id);
14061           tree_view->priv->search_entry_changed_id = 0;
14062         }
14063       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14064                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14065                                             tree_view);
14066
14067       g_object_unref (tree_view->priv->search_entry);
14068     }
14069   else if (tree_view->priv->search_window)
14070     {
14071       gtk_widget_destroy (tree_view->priv->search_window);
14072
14073       tree_view->priv->search_window = NULL;
14074     }
14075
14076   if (entry)
14077     {
14078       tree_view->priv->search_entry = g_object_ref (entry);
14079       tree_view->priv->search_custom_entry_set = TRUE;
14080
14081       if (tree_view->priv->search_entry_changed_id == 0)
14082         {
14083           tree_view->priv->search_entry_changed_id =
14084             g_signal_connect (tree_view->priv->search_entry, "changed",
14085                               G_CALLBACK (gtk_tree_view_search_init),
14086                               tree_view);
14087         }
14088
14089         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14090                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14091                           tree_view);
14092
14093         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14094     }
14095   else
14096     {
14097       tree_view->priv->search_entry = NULL;
14098       tree_view->priv->search_custom_entry_set = FALSE;
14099     }
14100 }
14101
14102 /**
14103  * gtk_tree_view_set_search_position_func:
14104  * @tree_view: A #GtkTreeView
14105  * @func: the function to use to position the search dialog, or %NULL
14106  *    to use the default search position function
14107  * @data: user data to pass to @func, or %NULL
14108  * @destroy: Destroy notifier for @data, or %NULL
14109  *
14110  * Sets the function to use when positioning the search dialog.
14111  *
14112  * Since: 2.10
14113  **/
14114 void
14115 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14116                                         GtkTreeViewSearchPositionFunc  func,
14117                                         gpointer                       user_data,
14118                                         GDestroyNotify                 destroy)
14119 {
14120   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14121
14122   if (tree_view->priv->search_position_destroy)
14123     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14124
14125   tree_view->priv->search_position_func = func;
14126   tree_view->priv->search_position_user_data = user_data;
14127   tree_view->priv->search_position_destroy = destroy;
14128   if (tree_view->priv->search_position_func == NULL)
14129     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14130 }
14131
14132 /**
14133  * gtk_tree_view_get_search_position_func:
14134  * @tree_view: A #GtkTreeView
14135  *
14136  * Returns the positioning function currently in use.
14137  *
14138  * Return value: the currently used function for positioning the search dialog.
14139  *
14140  * Since: 2.10
14141  */
14142 GtkTreeViewSearchPositionFunc
14143 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14144 {
14145   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14146
14147   return tree_view->priv->search_position_func;
14148 }
14149
14150
14151 static void
14152 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14153                                   GtkTreeView *tree_view)
14154 {
14155   if (tree_view->priv->disable_popdown)
14156     return;
14157
14158   if (tree_view->priv->search_entry_changed_id)
14159     {
14160       g_signal_handler_disconnect (tree_view->priv->search_entry,
14161                                    tree_view->priv->search_entry_changed_id);
14162       tree_view->priv->search_entry_changed_id = 0;
14163     }
14164   if (tree_view->priv->typeselect_flush_timeout)
14165     {
14166       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14167       tree_view->priv->typeselect_flush_timeout = 0;
14168     }
14169
14170   if (GTK_WIDGET_VISIBLE (search_dialog))
14171     {
14172       /* send focus-in event */
14173       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14174       gtk_widget_hide (search_dialog);
14175       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14176       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14177     }
14178 }
14179
14180 static void
14181 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14182                                     GtkWidget   *search_dialog,
14183                                     gpointer     user_data)
14184 {
14185   gint x, y;
14186   gint tree_x, tree_y;
14187   gint tree_width, tree_height;
14188   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14189   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14190   GtkRequisition requisition;
14191   gint monitor_num;
14192   GdkRectangle monitor;
14193
14194   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14195   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14196
14197   gtk_widget_realize (search_dialog);
14198
14199   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14200   gdk_drawable_get_size (tree_window,
14201                          &tree_width,
14202                          &tree_height);
14203   gtk_widget_size_request (search_dialog, &requisition);
14204
14205   if (tree_x + tree_width > gdk_screen_get_width (screen))
14206     x = gdk_screen_get_width (screen) - requisition.width;
14207   else if (tree_x + tree_width - requisition.width < 0)
14208     x = 0;
14209   else
14210     x = tree_x + tree_width - requisition.width;
14211
14212   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14213     y = gdk_screen_get_height (screen) - requisition.height;
14214   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14215     y = 0;
14216   else
14217     y = tree_y + tree_height;
14218
14219   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14220 }
14221
14222 static void
14223 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14224                                       GtkMenu  *menu,
14225                                       gpointer  data)
14226 {
14227   GtkTreeView *tree_view = (GtkTreeView *)data;
14228
14229   tree_view->priv->disable_popdown = 1;
14230   g_signal_connect (menu, "hide",
14231                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14232 }
14233
14234 /* Because we're visible but offscreen, we just set a flag in the preedit
14235  * callback.
14236  */
14237 static void
14238 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14239                                       GtkTreeView  *tree_view)
14240 {
14241   tree_view->priv->imcontext_changed = 1;
14242   if (tree_view->priv->typeselect_flush_timeout)
14243     {
14244       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14245       tree_view->priv->typeselect_flush_timeout =
14246         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14247                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14248                        tree_view);
14249     }
14250
14251 }
14252
14253 static void
14254 gtk_tree_view_search_activate (GtkEntry    *entry,
14255                                GtkTreeView *tree_view)
14256 {
14257   GtkTreePath *path;
14258   GtkRBNode *node;
14259   GtkRBTree *tree;
14260
14261   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14262                                     tree_view);
14263
14264   /* If we have a row selected and it's the cursor row, we activate
14265    * the row XXX */
14266   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14267     {
14268       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14269
14270       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14271
14272       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14273         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14274
14275       gtk_tree_path_free (path);
14276     }
14277 }
14278
14279 static gboolean
14280 gtk_tree_view_real_search_enable_popdown (gpointer data)
14281 {
14282   GtkTreeView *tree_view = (GtkTreeView *)data;
14283
14284   tree_view->priv->disable_popdown = 0;
14285
14286   return FALSE;
14287 }
14288
14289 static void
14290 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14291                                      gpointer   data)
14292 {
14293   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14294 }
14295
14296 static gboolean
14297 gtk_tree_view_search_delete_event (GtkWidget *widget,
14298                                    GdkEventAny *event,
14299                                    GtkTreeView *tree_view)
14300 {
14301   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14302
14303   gtk_tree_view_search_dialog_hide (widget, tree_view);
14304
14305   return TRUE;
14306 }
14307
14308 static gboolean
14309 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14310                                          GdkEventButton *event,
14311                                          GtkTreeView *tree_view)
14312 {
14313   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14314
14315   gtk_tree_view_search_dialog_hide (widget, tree_view);
14316
14317   if (event->window == tree_view->priv->bin_window)
14318     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14319
14320   return TRUE;
14321 }
14322
14323 static gboolean
14324 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14325                                    GdkEventScroll *event,
14326                                    GtkTreeView *tree_view)
14327 {
14328   gboolean retval = FALSE;
14329
14330   if (event->direction == GDK_SCROLL_UP)
14331     {
14332       gtk_tree_view_search_move (widget, tree_view, TRUE);
14333       retval = TRUE;
14334     }
14335   else if (event->direction == GDK_SCROLL_DOWN)
14336     {
14337       gtk_tree_view_search_move (widget, tree_view, FALSE);
14338       retval = TRUE;
14339     }
14340
14341   /* renew the flush timeout */
14342   if (retval && tree_view->priv->typeselect_flush_timeout
14343       && !tree_view->priv->search_custom_entry_set)
14344     {
14345       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14346       tree_view->priv->typeselect_flush_timeout =
14347         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14348                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14349                        tree_view);
14350     }
14351
14352   return retval;
14353 }
14354
14355 static gboolean
14356 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14357                                       GdkEventKey *event,
14358                                       GtkTreeView *tree_view)
14359 {
14360   gboolean retval = FALSE;
14361
14362   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14363   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14364
14365   /* close window and cancel the search */
14366   if (!tree_view->priv->search_custom_entry_set
14367       && (event->keyval == GDK_Escape ||
14368           event->keyval == GDK_Tab ||
14369             event->keyval == GDK_KP_Tab ||
14370             event->keyval == GDK_ISO_Left_Tab))
14371     {
14372       gtk_tree_view_search_dialog_hide (widget, tree_view);
14373       return TRUE;
14374     }
14375
14376   /* select previous matching iter */
14377   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14378     {
14379       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14380         gtk_widget_error_bell (widget);
14381
14382       retval = TRUE;
14383     }
14384
14385   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK))
14386       && (event->keyval == GDK_g || event->keyval == GDK_G))
14387     {
14388       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14389         gtk_widget_error_bell (widget);
14390
14391       retval = TRUE;
14392     }
14393
14394   /* select next matching iter */
14395   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14396     {
14397       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14398         gtk_widget_error_bell (widget);
14399
14400       retval = TRUE;
14401     }
14402
14403   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == GTK_DEFAULT_ACCEL_MOD_MASK)
14404       && (event->keyval == GDK_g || event->keyval == GDK_G))
14405     {
14406       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14407         gtk_widget_error_bell (widget);
14408
14409       retval = TRUE;
14410     }
14411
14412   /* renew the flush timeout */
14413   if (retval && tree_view->priv->typeselect_flush_timeout
14414       && !tree_view->priv->search_custom_entry_set)
14415     {
14416       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14417       tree_view->priv->typeselect_flush_timeout =
14418         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14419                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14420                        tree_view);
14421     }
14422
14423   return retval;
14424 }
14425
14426 /*  this function returns FALSE if there is a search string but
14427  *  nothing was found, and TRUE otherwise.
14428  */
14429 static gboolean
14430 gtk_tree_view_search_move (GtkWidget   *window,
14431                            GtkTreeView *tree_view,
14432                            gboolean     up)
14433 {
14434   gboolean ret;
14435   gint len;
14436   gint count = 0;
14437   const gchar *text;
14438   GtkTreeIter iter;
14439   GtkTreeModel *model;
14440   GtkTreeSelection *selection;
14441
14442   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14443
14444   g_return_val_if_fail (text != NULL, FALSE);
14445
14446   len = strlen (text);
14447
14448   if (up && tree_view->priv->selected_iter == 1)
14449     return strlen (text) < 1;
14450
14451   len = strlen (text);
14452
14453   if (len < 1)
14454     return TRUE;
14455
14456   model = gtk_tree_view_get_model (tree_view);
14457   selection = gtk_tree_view_get_selection (tree_view);
14458
14459   /* search */
14460   gtk_tree_selection_unselect_all (selection);
14461   if (!gtk_tree_model_get_iter_first (model, &iter))
14462     return TRUE;
14463
14464   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14465                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14466
14467   if (ret)
14468     {
14469       /* found */
14470       tree_view->priv->selected_iter += up?(-1):(1);
14471       return TRUE;
14472     }
14473   else
14474     {
14475       /* return to old iter */
14476       count = 0;
14477       gtk_tree_model_get_iter_first (model, &iter);
14478       gtk_tree_view_search_iter (model, selection,
14479                                  &iter, text,
14480                                  &count, tree_view->priv->selected_iter);
14481       return FALSE;
14482     }
14483 }
14484
14485 static gboolean
14486 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14487                                  gint          column,
14488                                  const gchar  *key,
14489                                  GtkTreeIter  *iter,
14490                                  gpointer      search_data)
14491 {
14492   gboolean retval = TRUE;
14493   const gchar *str;
14494   gchar *normalized_string;
14495   gchar *normalized_key;
14496   gchar *case_normalized_string = NULL;
14497   gchar *case_normalized_key = NULL;
14498   GValue value = {0,};
14499   GValue transformed = {0,};
14500
14501   gtk_tree_model_get_value (model, iter, column, &value);
14502
14503   g_value_init (&transformed, G_TYPE_STRING);
14504
14505   if (!g_value_transform (&value, &transformed))
14506     {
14507       g_value_unset (&value);
14508       return TRUE;
14509     }
14510
14511   g_value_unset (&value);
14512
14513   str = g_value_get_string (&transformed);
14514   if (!str)
14515     {
14516       g_value_unset (&transformed);
14517       return TRUE;
14518     }
14519
14520   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14521   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14522
14523   if (normalized_string && normalized_key)
14524     {
14525       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14526       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14527
14528       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14529         retval = FALSE;
14530     }
14531
14532   g_value_unset (&transformed);
14533   g_free (normalized_key);
14534   g_free (normalized_string);
14535   g_free (case_normalized_key);
14536   g_free (case_normalized_string);
14537
14538   return retval;
14539 }
14540
14541 static gboolean
14542 gtk_tree_view_search_iter (GtkTreeModel     *model,
14543                            GtkTreeSelection *selection,
14544                            GtkTreeIter      *iter,
14545                            const gchar      *text,
14546                            gint             *count,
14547                            gint              n)
14548 {
14549   GtkRBTree *tree = NULL;
14550   GtkRBNode *node = NULL;
14551   GtkTreePath *path;
14552
14553   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14554
14555   path = gtk_tree_model_get_path (model, iter);
14556   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14557
14558   do
14559     {
14560       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14561         {
14562           (*count)++;
14563           if (*count == n)
14564             {
14565               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14566                                             TRUE, 0.5, 0.0);
14567               gtk_tree_selection_select_iter (selection, iter);
14568               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14569
14570               if (path)
14571                 gtk_tree_path_free (path);
14572
14573               return TRUE;
14574             }
14575         }
14576
14577       if (node->children)
14578         {
14579           gboolean has_child;
14580           GtkTreeIter tmp;
14581
14582           tree = node->children;
14583           node = tree->root;
14584
14585           while (node->left != tree->nil)
14586             node = node->left;
14587
14588           tmp = *iter;
14589           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14590           gtk_tree_path_down (path);
14591
14592           /* sanity check */
14593           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14594         }
14595       else
14596         {
14597           gboolean done = FALSE;
14598
14599           do
14600             {
14601               node = _gtk_rbtree_next (tree, node);
14602
14603               if (node)
14604                 {
14605                   gboolean has_next;
14606
14607                   has_next = gtk_tree_model_iter_next (model, iter);
14608
14609                   done = TRUE;
14610                   gtk_tree_path_next (path);
14611
14612                   /* sanity check */
14613                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14614                 }
14615               else
14616                 {
14617                   gboolean has_parent;
14618                   GtkTreeIter tmp_iter = *iter;
14619
14620                   node = tree->parent_node;
14621                   tree = tree->parent_tree;
14622
14623                   if (!tree)
14624                     {
14625                       if (path)
14626                         gtk_tree_path_free (path);
14627
14628                       /* we've run out of tree, done with this func */
14629                       return FALSE;
14630                     }
14631
14632                   has_parent = gtk_tree_model_iter_parent (model,
14633                                                            iter,
14634                                                            &tmp_iter);
14635                   gtk_tree_path_up (path);
14636
14637                   /* sanity check */
14638                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14639                 }
14640             }
14641           while (!done);
14642         }
14643     }
14644   while (1);
14645
14646   return FALSE;
14647 }
14648
14649 static void
14650 gtk_tree_view_search_init (GtkWidget   *entry,
14651                            GtkTreeView *tree_view)
14652 {
14653   gint ret;
14654   gint count = 0;
14655   const gchar *text;
14656   GtkTreeIter iter;
14657   GtkTreeModel *model;
14658   GtkTreeSelection *selection;
14659
14660   g_return_if_fail (GTK_IS_ENTRY (entry));
14661   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14662
14663   text = gtk_entry_get_text (GTK_ENTRY (entry));
14664
14665   model = gtk_tree_view_get_model (tree_view);
14666   selection = gtk_tree_view_get_selection (tree_view);
14667
14668   /* search */
14669   gtk_tree_selection_unselect_all (selection);
14670   if (tree_view->priv->typeselect_flush_timeout
14671       && !tree_view->priv->search_custom_entry_set)
14672     {
14673       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14674       tree_view->priv->typeselect_flush_timeout =
14675         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14676                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14677                        tree_view);
14678     }
14679
14680   if (*text == '\0')
14681     return;
14682
14683   if (!gtk_tree_model_get_iter_first (model, &iter))
14684     return;
14685
14686   ret = gtk_tree_view_search_iter (model, selection,
14687                                    &iter, text,
14688                                    &count, 1);
14689
14690   if (ret)
14691     tree_view->priv->selected_iter = 1;
14692 }
14693
14694 static void
14695 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14696                              GtkTreeView     *tree_view)
14697 {
14698   if (tree_view->priv->edited_column == NULL)
14699     return;
14700
14701   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14702   tree_view->priv->edited_column = NULL;
14703
14704   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14705     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14706
14707   g_signal_handlers_disconnect_by_func (cell_editable,
14708                                         gtk_tree_view_remove_widget,
14709                                         tree_view);
14710
14711   gtk_container_remove (GTK_CONTAINER (tree_view),
14712                         GTK_WIDGET (cell_editable));
14713
14714   /* FIXME should only redraw a single node */
14715   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14716 }
14717
14718 static gboolean
14719 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14720                              GtkTreePath *cursor_path)
14721 {
14722   GtkTreeIter iter;
14723   GdkRectangle background_area;
14724   GdkRectangle cell_area;
14725   GtkCellEditable *editable_widget = NULL;
14726   gchar *path_string;
14727   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14728   gint retval = FALSE;
14729   GtkRBTree *cursor_tree;
14730   GtkRBNode *cursor_node;
14731
14732   g_assert (tree_view->priv->focus_column);
14733
14734   if (! GTK_WIDGET_REALIZED (tree_view))
14735     return FALSE;
14736
14737   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14738       cursor_node == NULL)
14739     return FALSE;
14740
14741   path_string = gtk_tree_path_to_string (cursor_path);
14742   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14743
14744   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14745
14746   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14747                                            tree_view->priv->model,
14748                                            &iter,
14749                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14750                                            cursor_node->children?TRUE:FALSE);
14751   gtk_tree_view_get_background_area (tree_view,
14752                                      cursor_path,
14753                                      tree_view->priv->focus_column,
14754                                      &background_area);
14755   gtk_tree_view_get_cell_area (tree_view,
14756                                cursor_path,
14757                                tree_view->priv->focus_column,
14758                                &cell_area);
14759
14760   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14761                                         &editable_widget,
14762                                         NULL,
14763                                         path_string,
14764                                         &background_area,
14765                                         &cell_area,
14766                                         flags))
14767     {
14768       retval = TRUE;
14769       if (editable_widget != NULL)
14770         {
14771           gint left, right;
14772           GdkRectangle area;
14773           GtkCellRenderer *cell;
14774
14775           area = cell_area;
14776           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14777
14778           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14779
14780           area.x += left;
14781           area.width -= right + left;
14782
14783           gtk_tree_view_real_start_editing (tree_view,
14784                                             tree_view->priv->focus_column,
14785                                             cursor_path,
14786                                             editable_widget,
14787                                             &area,
14788                                             NULL,
14789                                             flags);
14790         }
14791
14792     }
14793   g_free (path_string);
14794   return retval;
14795 }
14796
14797 static void
14798 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14799                                   GtkTreeViewColumn *column,
14800                                   GtkTreePath       *path,
14801                                   GtkCellEditable   *cell_editable,
14802                                   GdkRectangle      *cell_area,
14803                                   GdkEvent          *event,
14804                                   guint              flags)
14805 {
14806   gint pre_val = tree_view->priv->vadjustment->value;
14807   GtkRequisition requisition;
14808
14809   tree_view->priv->edited_column = column;
14810   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14811
14812   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14813   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14814
14815   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14816
14817   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14818
14819   if (requisition.height < cell_area->height)
14820     {
14821       gint diff = cell_area->height - requisition.height;
14822       gtk_tree_view_put (tree_view,
14823                          GTK_WIDGET (cell_editable),
14824                          cell_area->x, cell_area->y + diff/2,
14825                          cell_area->width, requisition.height);
14826     }
14827   else
14828     {
14829       gtk_tree_view_put (tree_view,
14830                          GTK_WIDGET (cell_editable),
14831                          cell_area->x, cell_area->y,
14832                          cell_area->width, cell_area->height);
14833     }
14834
14835   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14836                                    (GdkEvent *)event);
14837
14838   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14839   g_signal_connect (cell_editable, "remove-widget",
14840                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14841 }
14842
14843 static void
14844 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14845                             gboolean     cancel_editing)
14846 {
14847   GtkTreeViewColumn *column;
14848   GtkCellRenderer *cell;
14849
14850   if (tree_view->priv->edited_column == NULL)
14851     return;
14852
14853   /*
14854    * This is very evil. We need to do this, because
14855    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14856    * later on. If gtk_tree_view_row_changed notices
14857    * tree_view->priv->edited_column != NULL, it'll call
14858    * gtk_tree_view_stop_editing again. Bad things will happen then.
14859    *
14860    * Please read that again if you intend to modify anything here.
14861    */
14862
14863   column = tree_view->priv->edited_column;
14864   tree_view->priv->edited_column = NULL;
14865
14866   cell = _gtk_tree_view_column_get_edited_cell (column);
14867   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14868
14869   if (!cancel_editing)
14870     gtk_cell_editable_editing_done (column->editable_widget);
14871
14872   tree_view->priv->edited_column = column;
14873
14874   gtk_cell_editable_remove_widget (column->editable_widget);
14875 }
14876
14877
14878 /**
14879  * gtk_tree_view_set_hover_selection:
14880  * @tree_view: a #GtkTreeView
14881  * @hover: %TRUE to enable hover selection mode
14882  *
14883  * Enables of disables the hover selection mode of @tree_view.
14884  * Hover selection makes the selected row follow the pointer.
14885  * Currently, this works only for the selection modes
14886  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14887  *
14888  * Since: 2.6
14889  **/
14890 void
14891 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14892                                    gboolean     hover)
14893 {
14894   hover = hover != FALSE;
14895
14896   if (hover != tree_view->priv->hover_selection)
14897     {
14898       tree_view->priv->hover_selection = hover;
14899
14900       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14901     }
14902 }
14903
14904 /**
14905  * gtk_tree_view_get_hover_selection:
14906  * @tree_view: a #GtkTreeView
14907  *
14908  * Returns whether hover selection mode is turned on for @tree_view.
14909  *
14910  * Return value: %TRUE if @tree_view is in hover selection mode
14911  *
14912  * Since: 2.6
14913  **/
14914 gboolean
14915 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14916 {
14917   return tree_view->priv->hover_selection;
14918 }
14919
14920 /**
14921  * gtk_tree_view_set_hover_expand:
14922  * @tree_view: a #GtkTreeView
14923  * @expand: %TRUE to enable hover selection mode
14924  *
14925  * Enables of disables the hover expansion mode of @tree_view.
14926  * Hover expansion makes rows expand or collapse if the pointer
14927  * moves over them.
14928  *
14929  * Since: 2.6
14930  **/
14931 void
14932 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14933                                 gboolean     expand)
14934 {
14935   expand = expand != FALSE;
14936
14937   if (expand != tree_view->priv->hover_expand)
14938     {
14939       tree_view->priv->hover_expand = expand;
14940
14941       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14942     }
14943 }
14944
14945 /**
14946  * gtk_tree_view_get_hover_expand:
14947  * @tree_view: a #GtkTreeView
14948  *
14949  * Returns whether hover expansion mode is turned on for @tree_view.
14950  *
14951  * Return value: %TRUE if @tree_view is in hover expansion mode
14952  *
14953  * Since: 2.6
14954  **/
14955 gboolean
14956 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14957 {
14958   return tree_view->priv->hover_expand;
14959 }
14960
14961 /**
14962  * gtk_tree_view_set_rubber_banding:
14963  * @tree_view: a #GtkTreeView
14964  * @enable: %TRUE to enable rubber banding
14965  *
14966  * Enables or disables rubber banding in @tree_view.  If the selection mode
14967  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14968  * multiple rows by dragging the mouse.
14969  *
14970  * Since: 2.10
14971  **/
14972 void
14973 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14974                                   gboolean     enable)
14975 {
14976   enable = enable != FALSE;
14977
14978   if (enable != tree_view->priv->rubber_banding_enable)
14979     {
14980       tree_view->priv->rubber_banding_enable = enable;
14981
14982       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14983     }
14984 }
14985
14986 /**
14987  * gtk_tree_view_get_rubber_banding:
14988  * @tree_view: a #GtkTreeView
14989  *
14990  * Returns whether rubber banding is turned on for @tree_view.  If the
14991  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14992  * user to select multiple rows by dragging the mouse.
14993  *
14994  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14995  *
14996  * Since: 2.10
14997  **/
14998 gboolean
14999 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
15000 {
15001   return tree_view->priv->rubber_banding_enable;
15002 }
15003
15004 /**
15005  * gtk_tree_view_is_rubber_banding_active:
15006  * @tree_view: a #GtkTreeView
15007  *
15008  * Returns whether a rubber banding operation is currently being done
15009  * in @tree_view.
15010  *
15011  * Return value: %TRUE if a rubber banding operation is currently being
15012  * done in @tree_view.
15013  *
15014  * Since: 2.12
15015  **/
15016 gboolean
15017 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
15018 {
15019   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15020
15021   if (tree_view->priv->rubber_banding_enable
15022       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15023     return TRUE;
15024
15025   return FALSE;
15026 }
15027
15028 /**
15029  * gtk_tree_view_get_row_separator_func:
15030  * @tree_view: a #GtkTreeView
15031  *
15032  * Returns the current row separator function.
15033  *
15034  * Return value: the current row separator function.
15035  *
15036  * Since: 2.6
15037  **/
15038 GtkTreeViewRowSeparatorFunc
15039 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15040 {
15041   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15042
15043   return tree_view->priv->row_separator_func;
15044 }
15045
15046 /**
15047  * gtk_tree_view_set_row_separator_func:
15048  * @tree_view: a #GtkTreeView
15049  * @func: a #GtkTreeViewRowSeparatorFunc
15050  * @data: user data to pass to @func, or %NULL
15051  * @destroy: destroy notifier for @data, or %NULL
15052  *
15053  * Sets the row separator function, which is used to determine
15054  * whether a row should be drawn as a separator. If the row separator
15055  * function is %NULL, no separators are drawn. This is the default value.
15056  *
15057  * Since: 2.6
15058  **/
15059 void
15060 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15061                                       GtkTreeViewRowSeparatorFunc  func,
15062                                       gpointer                     data,
15063                                       GDestroyNotify               destroy)
15064 {
15065   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15066
15067   if (tree_view->priv->row_separator_destroy)
15068     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15069
15070   tree_view->priv->row_separator_func = func;
15071   tree_view->priv->row_separator_data = data;
15072   tree_view->priv->row_separator_destroy = destroy;
15073
15074   /* Have the tree recalculate heights */
15075   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
15076   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
15077 }
15078
15079
15080 static void
15081 gtk_tree_view_grab_notify (GtkWidget *widget,
15082                            gboolean   was_grabbed)
15083 {
15084   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15085
15086   tree_view->priv->in_grab = !was_grabbed;
15087
15088   if (!was_grabbed)
15089     {
15090       tree_view->priv->pressed_button = -1;
15091
15092       if (tree_view->priv->rubber_band_status)
15093         gtk_tree_view_stop_rubber_band (tree_view);
15094     }
15095 }
15096
15097 static void
15098 gtk_tree_view_state_changed (GtkWidget      *widget,
15099                              GtkStateType    previous_state)
15100 {
15101   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15102
15103   if (GTK_WIDGET_REALIZED (widget))
15104     {
15105       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15106       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15107     }
15108
15109   gtk_widget_queue_draw (widget);
15110 }
15111
15112 /**
15113  * gtk_tree_view_get_grid_lines:
15114  * @tree_view: a #GtkTreeView
15115  *
15116  * Returns which grid lines are enabled in @tree_view.
15117  *
15118  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15119  * are enabled.
15120  *
15121  * Since: 2.10
15122  */
15123 GtkTreeViewGridLines
15124 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15125 {
15126   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15127
15128   return tree_view->priv->grid_lines;
15129 }
15130
15131 /**
15132  * gtk_tree_view_set_grid_lines:
15133  * @tree_view: a #GtkTreeView
15134  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15135  * enable.
15136  *
15137  * Sets which grid lines to draw in @tree_view.
15138  *
15139  * Since: 2.10
15140  */
15141 void
15142 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15143                               GtkTreeViewGridLines   grid_lines)
15144 {
15145   GtkTreeViewPrivate *priv;
15146   GtkWidget *widget;
15147   GtkTreeViewGridLines old_grid_lines;
15148
15149   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15150
15151   priv = tree_view->priv;
15152   widget = GTK_WIDGET (tree_view);
15153
15154   old_grid_lines = priv->grid_lines;
15155   priv->grid_lines = grid_lines;
15156
15157   if (GTK_WIDGET_REALIZED (widget))
15158     {
15159       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15160           priv->grid_line_gc)
15161         {
15162           g_object_unref (priv->grid_line_gc);
15163           priv->grid_line_gc = NULL;
15164         }
15165
15166       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15167           !priv->grid_line_gc)
15168         {
15169           gint line_width;
15170           gint8 *dash_list;
15171
15172           gtk_widget_style_get (widget,
15173                                 "grid-line-width", &line_width,
15174                                 "grid-line-pattern", (gchar *)&dash_list,
15175                                 NULL);
15176
15177           priv->grid_line_gc = gdk_gc_new (widget->window);
15178           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15179
15180           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15181                                       GDK_LINE_ON_OFF_DASH,
15182                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15183           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15184
15185           g_free (dash_list);
15186         }
15187     }
15188
15189   if (old_grid_lines != grid_lines)
15190     {
15191       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15192
15193       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15194     }
15195 }
15196
15197 /**
15198  * gtk_tree_view_get_enable_tree_lines:
15199  * @tree_view: a #GtkTreeView.
15200  *
15201  * Returns whether or not tree lines are drawn in @tree_view.
15202  *
15203  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15204  * otherwise.
15205  *
15206  * Since: 2.10
15207  */
15208 gboolean
15209 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15210 {
15211   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15212
15213   return tree_view->priv->tree_lines_enabled;
15214 }
15215
15216 /**
15217  * gtk_tree_view_set_enable_tree_lines:
15218  * @tree_view: a #GtkTreeView
15219  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15220  *
15221  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15222  * This does not have any visible effects for lists.
15223  *
15224  * Since: 2.10
15225  */
15226 void
15227 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15228                                      gboolean     enabled)
15229 {
15230   GtkTreeViewPrivate *priv;
15231   GtkWidget *widget;
15232   gboolean was_enabled;
15233
15234   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15235
15236   enabled = enabled != FALSE;
15237
15238   priv = tree_view->priv;
15239   widget = GTK_WIDGET (tree_view);
15240
15241   was_enabled = priv->tree_lines_enabled;
15242
15243   priv->tree_lines_enabled = enabled;
15244
15245   if (GTK_WIDGET_REALIZED (widget))
15246     {
15247       if (!enabled && priv->tree_line_gc)
15248         {
15249           g_object_unref (priv->tree_line_gc);
15250           priv->tree_line_gc = NULL;
15251         }
15252
15253       if (enabled && !priv->tree_line_gc)
15254         {
15255           gint line_width;
15256           gint8 *dash_list;
15257           gtk_widget_style_get (widget,
15258                                 "tree-line-width", &line_width,
15259                                 "tree-line-pattern", (gchar *)&dash_list,
15260                                 NULL);
15261
15262           priv->tree_line_gc = gdk_gc_new (widget->window);
15263           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15264
15265           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15266                                       GDK_LINE_ON_OFF_DASH,
15267                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15268           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15269
15270           g_free (dash_list);
15271         }
15272     }
15273
15274   if (was_enabled != enabled)
15275     {
15276       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15277
15278       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15279     }
15280 }
15281
15282
15283 /**
15284  * gtk_tree_view_set_show_expanders:
15285  * @tree_view: a #GtkTreeView
15286  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15287  *
15288  * Sets whether to draw and enable expanders and indent child rows in
15289  * @tree_view.  When disabled there will be no expanders visible in trees
15290  * and there will be no way to expand and collapse rows by default.  Also
15291  * note that hiding the expanders will disable the default indentation.  You
15292  * can set a custom indentation in this case using
15293  * gtk_tree_view_set_level_indentation().
15294  * This does not have any visible effects for lists.
15295  *
15296  * Since: 2.12
15297  */
15298 void
15299 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15300                                   gboolean     enabled)
15301 {
15302   gboolean was_enabled;
15303
15304   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15305
15306   enabled = enabled != FALSE;
15307   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15308
15309   if (enabled)
15310     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15311   else
15312     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15313
15314   if (enabled != was_enabled)
15315     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15316 }
15317
15318 /**
15319  * gtk_tree_view_get_show_expanders:
15320  * @tree_view: a #GtkTreeView.
15321  *
15322  * Returns whether or not expanders are drawn in @tree_view.
15323  *
15324  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15325  * otherwise.
15326  *
15327  * Since: 2.12
15328  */
15329 gboolean
15330 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15331 {
15332   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15333
15334   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15335 }
15336
15337 /**
15338  * gtk_tree_view_set_level_indentation:
15339  * @tree_view: a #GtkTreeView
15340  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15341  *
15342  * Sets the amount of extra indentation for child levels to use in @tree_view
15343  * in addition to the default indentation.  The value should be specified in
15344  * pixels, a value of 0 disables this feature and in this case only the default
15345  * indentation will be used.
15346  * This does not have any visible effects for lists.
15347  *
15348  * Since: 2.12
15349  */
15350 void
15351 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15352                                      gint         indentation)
15353 {
15354   tree_view->priv->level_indentation = indentation;
15355
15356   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15357 }
15358
15359 /**
15360  * gtk_tree_view_get_level_indentation:
15361  * @tree_view: a #GtkTreeView.
15362  *
15363  * Returns the amount, in pixels, of extra indentation for child levels
15364  * in @tree_view.
15365  *
15366  * Return value: the amount of extra indentation for child levels in
15367  * @tree_view.  A return value of 0 means that this feature is disabled.
15368  *
15369  * Since: 2.12
15370  */
15371 gint
15372 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15373 {
15374   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15375
15376   return tree_view->priv->level_indentation;
15377 }
15378
15379 /**
15380  * gtk_tree_view_set_tooltip_row:
15381  * @tree_view: a #GtkTreeView
15382  * @tooltip: a #GtkTooltip
15383  * @path: a #GtkTreePath
15384  *
15385  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15386  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15387  * See also gtk_tooltip_set_tip_area().
15388  *
15389  * Since: 2.12
15390  */
15391 void
15392 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15393                                GtkTooltip  *tooltip,
15394                                GtkTreePath *path)
15395 {
15396   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15397   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15398
15399   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15400 }
15401
15402 /**
15403  * gtk_tree_view_set_tooltip_cell:
15404  * @tree_view: a #GtkTreeView
15405  * @tooltip: a #GtkTooltip
15406  * @path: a #GtkTreePath or %NULL
15407  * @column: a #GtkTreeViewColumn or %NULL
15408  * @cell: a #GtkCellRenderer or %NULL
15409  *
15410  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15411  * in common.  For example if @path is %NULL and @column is set, the tip
15412  * area will be set to the full area covered by @column.  See also
15413  * gtk_tooltip_set_tip_area().
15414  *
15415  * Note that if @path is not specified and @cell is set and part of a column
15416  * containing the expander, the tooltip might not show and hide at the correct
15417  * position.  In such cases @path must be set to the current node under the
15418  * mouse cursor for this function to operate correctly.
15419  *
15420  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15421  *
15422  * Since: 2.12
15423  */
15424 void
15425 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15426                                 GtkTooltip        *tooltip,
15427                                 GtkTreePath       *path,
15428                                 GtkTreeViewColumn *column,
15429                                 GtkCellRenderer   *cell)
15430 {
15431   GdkRectangle rect;
15432
15433   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15434   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15435   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15436   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15437
15438   /* Determine x values. */
15439   if (column && cell)
15440     {
15441       GdkRectangle tmp;
15442       gint start, width;
15443
15444       /* We always pass in path here, whether it is NULL or not.
15445        * For cells in expander columns path must be specified so that
15446        * we can correctly account for the indentation.  This also means
15447        * that the tooltip is constrained vertically by the "Determine y
15448        * values" code below; this is not a real problem since cells actually
15449        * don't stretch vertically in constrast to columns.
15450        */
15451       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15452       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15453
15454       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15455                                                          tmp.x + start, 0,
15456                                                          &rect.x, NULL);
15457       rect.width = width;
15458     }
15459   else if (column)
15460     {
15461       GdkRectangle tmp;
15462
15463       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15464       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15465                                                          tmp.x, 0,
15466                                                          &rect.x, NULL);
15467       rect.width = tmp.width;
15468     }
15469   else
15470     {
15471       rect.x = 0;
15472       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15473     }
15474
15475   /* Determine y values. */
15476   if (path)
15477     {
15478       GdkRectangle tmp;
15479
15480       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15481       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15482                                                          0, tmp.y,
15483                                                          NULL, &rect.y);
15484       rect.height = tmp.height;
15485     }
15486   else
15487     {
15488       rect.y = 0;
15489       rect.height = tree_view->priv->vadjustment->page_size;
15490     }
15491
15492   gtk_tooltip_set_tip_area (tooltip, &rect);
15493 }
15494
15495 /**
15496  * gtk_tree_view_get_tooltip_context:
15497  * @tree_view: a #GtkTreeView
15498  * @x: the x coordinate (relative to widget coordinates)
15499  * @y: the y coordinate (relative to widget coordinates)
15500  * @keyboard_tip: whether this is a keyboard tooltip or not
15501  * @model: a pointer to receive a #GtkTreeModel or %NULL
15502  * @path: a pointer to receive a #GtkTreePath or %NULL
15503  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15504  *
15505  * This function is supposed to be used in a #GtkWidget::query-tooltip
15506  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15507  * which are received in the signal handler, should be passed to this
15508  * function without modification.
15509  *
15510  * The return value indicates whether there is a tree view row at the given
15511  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15512  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15513  * @model, @path and @iter which have been provided will be set to point to
15514  * that row and the corresponding model.  @x and @y will always be converted
15515  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15516  *
15517  * Return value: whether or not the given tooltip context points to a row.
15518  *
15519  * Since: 2.12
15520  */
15521 gboolean
15522 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15523                                    gint          *x,
15524                                    gint          *y,
15525                                    gboolean       keyboard_tip,
15526                                    GtkTreeModel **model,
15527                                    GtkTreePath  **path,
15528                                    GtkTreeIter   *iter)
15529 {
15530   GtkTreePath *tmppath = NULL;
15531
15532   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15533   g_return_val_if_fail (x != NULL, FALSE);
15534   g_return_val_if_fail (y != NULL, FALSE);
15535
15536   if (keyboard_tip)
15537     {
15538       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15539
15540       if (!tmppath)
15541         return FALSE;
15542     }
15543   else
15544     {
15545       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15546                                                          x, y);
15547
15548       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15549                                           &tmppath, NULL, NULL, NULL))
15550         return FALSE;
15551     }
15552
15553   if (model)
15554     *model = gtk_tree_view_get_model (tree_view);
15555
15556   if (iter)
15557     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15558                              iter, tmppath);
15559
15560   if (path)
15561     *path = tmppath;
15562   else
15563     gtk_tree_path_free (tmppath);
15564
15565   return TRUE;
15566 }
15567
15568 static gboolean
15569 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15570                                     gint        x,
15571                                     gint        y,
15572                                     gboolean    keyboard_tip,
15573                                     GtkTooltip *tooltip,
15574                                     gpointer    data)
15575 {
15576   GValue value = { 0, };
15577   GValue transformed = { 0, };
15578   GtkTreeIter iter;
15579   GtkTreePath *path;
15580   GtkTreeModel *model;
15581   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15582
15583   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15584                                           &x, &y,
15585                                           keyboard_tip,
15586                                           &model, &path, &iter))
15587     return FALSE;
15588
15589   gtk_tree_model_get_value (model, &iter,
15590                             tree_view->priv->tooltip_column, &value);
15591
15592   g_value_init (&transformed, G_TYPE_STRING);
15593
15594   if (!g_value_transform (&value, &transformed))
15595     {
15596       g_value_unset (&value);
15597       gtk_tree_path_free (path);
15598
15599       return FALSE;
15600     }
15601
15602   g_value_unset (&value);
15603
15604   if (!g_value_get_string (&transformed))
15605     {
15606       g_value_unset (&transformed);
15607       gtk_tree_path_free (path);
15608
15609       return FALSE;
15610     }
15611
15612   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15613   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15614
15615   gtk_tree_path_free (path);
15616   g_value_unset (&transformed);
15617
15618   return TRUE;
15619 }
15620
15621 /**
15622  * gtk_tree_view_set_tooltip_column:
15623  * @tree_view: a #GtkTreeView
15624  * @column: an integer, which is a valid column number for @tree_view's model
15625  *
15626  * If you only plan to have simple (text-only) tooltips on full rows, you
15627  * can use this function to have #GtkTreeView handle these automatically
15628  * for you. @column should be set to the column in @tree_view's model
15629  * containing the tooltip texts, or -1 to disable this feature.
15630  *
15631  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15632  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15633  *
15634  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15635  * so &amp;, &lt;, etc have to be escaped in the text.
15636  *
15637  * Since: 2.12
15638  */
15639 void
15640 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15641                                   gint         column)
15642 {
15643   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15644
15645   if (column == tree_view->priv->tooltip_column)
15646     return;
15647
15648   if (column == -1)
15649     {
15650       g_signal_handlers_disconnect_by_func (tree_view,
15651                                             gtk_tree_view_set_tooltip_query_cb,
15652                                             NULL);
15653       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15654     }
15655   else
15656     {
15657       if (tree_view->priv->tooltip_column == -1)
15658         {
15659           g_signal_connect (tree_view, "query-tooltip",
15660                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15661           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15662         }
15663     }
15664
15665   tree_view->priv->tooltip_column = column;
15666   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15667 }
15668
15669 /**
15670  * gtk_tree_view_get_tooltip_column:
15671  * @tree_view: a #GtkTreeView
15672  *
15673  * Returns the column of @tree_view's model which is being used for
15674  * displaying tooltips on @tree_view's rows.
15675  *
15676  * Return value: the index of the tooltip column that is currently being
15677  * used, or -1 if this is disabled.
15678  *
15679  * Since: 2.12
15680  */
15681 gint
15682 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15683 {
15684   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15685
15686   return tree_view->priv->tooltip_column;
15687 }
15688
15689 #define __GTK_TREE_VIEW_C__
15690 #include "gtkaliasdef.c"