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_NUM_ROWS_PER_IDLE 500
  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 *source_target_list;
  96   GdkDragAction source_actions;
  97
  98   GtkTargetList *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                                                               GdkRectangle      *clip_rect);
 325 static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView       *tree_view,
 326                                                               GtkRBTree         *tree,
 327                                                               GtkRBNode         *node,
 328                                                               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 gboolean gtk_tree_view_discover_dirty_iter            (GtkTreeView       *tree_view,
 349                                                               GtkTreeIter       *iter,
 350                                                               gint               depth,
 351                                                               gint              *height,
 352                                                               GtkRBNode         *node);
 353 static void     gtk_tree_view_discover_dirty                 (GtkTreeView       *tree_view,
 354                                                               GtkRBTree         *tree,
 355                                                               GtkTreeIter       *iter,
 356                                                               gint               depth);
 357 static void     gtk_tree_view_clamp_node_visible             (GtkTreeView       *tree_view,
 358                                                               GtkRBTree         *tree,
 359                                                               GtkRBNode         *node);
 360 static void     gtk_tree_view_clamp_column_visible           (GtkTreeView       *tree_view,
 361                                                               GtkTreeViewColumn *column,
 362                                                               gboolean           focus_to_cell);
 363 static gboolean gtk_tree_view_maybe_begin_dragging_row       (GtkTreeView       *tree_view,
 364                                                               GdkEventMotion    *event);
 365 static void     gtk_tree_view_focus_to_cursor                (GtkTreeView       *tree_view);
 366 static void     gtk_tree_view_move_cursor_up_down            (GtkTreeView       *tree_view,
 367                                                               gint               count);
 368 static void     gtk_tree_view_move_cursor_page_up_down       (GtkTreeView       *tree_view,
 369                                                               gint               count);
 370 static void     gtk_tree_view_move_cursor_left_right         (GtkTreeView       *tree_view,
 371                                                               gint               count);
 372 static void     gtk_tree_view_move_cursor_start_end          (GtkTreeView       *tree_view,
 373                                                               gint               count);
 374 static gboolean gtk_tree_view_real_collapse_row              (GtkTreeView       *tree_view,
 375                                                               GtkTreePath       *path,
 376                                                               GtkRBTree         *tree,
 377                                                               GtkRBNode         *node,
 378                                                               gboolean           animate);
 379 static gboolean gtk_tree_view_real_expand_row                (GtkTreeView       *tree_view,
 380                                                               GtkTreePath       *path,
 381                                                               GtkRBTree         *tree,
 382                                                               GtkRBNode         *node,
 383                                                               gboolean           open_all,
 384                                                               gboolean           animate);
 385 static void     gtk_tree_view_real_set_cursor                (GtkTreeView       *tree_view,
 386                                                               GtkTreePath       *path,
 387                                                               gboolean           clear_and_select,
 388                                                               gboolean           clamp_node);
 389 static gboolean gtk_tree_view_has_special_cell               (GtkTreeView       *tree_view);
 390 static void     column_sizing_notify                         (GObject           *object,
 391                                                               GParamSpec        *pspec,
 392                                                               gpointer           data);
 393 static gboolean expand_collapse_timeout                      (gpointer           data);
 394 static gboolean do_expand_collapse                           (GtkTreeView       *tree_view);
 395 static void     gtk_tree_view_stop_rubber_band                (GtkTreeView       *tree_view);
 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                                                          FALSE,
 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 when searching through code"),
 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 indended 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 collaps if the pointer moves
 688      * over them.
 689      *
 690      * This mode is primarily indended 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   widget_class->set_scroll_adjustments_signal =
 867     g_signal_new (I_("set_scroll_adjustments"),
 868                   G_TYPE_FROM_CLASS (o_class),
 869                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 870                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 871                   NULL, NULL,
 872                   _gtk_marshal_VOID__OBJECT_OBJECT,
 873                   G_TYPE_NONE, 2,
 874                   GTK_TYPE_ADJUSTMENT,
 875                   GTK_TYPE_ADJUSTMENT);
 876
 877   /**
 878    * GtkTreeView::row-activated:
 879    * @tree_view: the object on which the signal is emitted
 880    * @path: the #GtkTreePath for the activated row
 881    * @column: the #GtkTreeViewColumn in which the activation occurred
 882    *
 883    * The "row-activated" signal is emitted when the method
 884    * gtk_tree_view_row_activated() is called or the user double clicks
 885    * a treeview row. It is also emitted when a non-editable row is
 886    * selected and one of the keys: Space, Shift+Space, Return or
 887    * Enter is pressed.
 888    *
 889    * For selection handling refer to the <link linkend="TreeWidget">tree
 890    * widget conceptual overview</link> as well as #GtkTreeSelection.
 891    */
 892   tree_view_signals[ROW_ACTIVATED] =
 893     g_signal_new (I_("row_activated"),
 894                   G_TYPE_FROM_CLASS (o_class),
 895                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 896                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 897                   NULL, NULL,
 898                   _gtk_marshal_VOID__BOXED_OBJECT,
 899                   G_TYPE_NONE, 2,
 900                   GTK_TYPE_TREE_PATH,
 901                   GTK_TYPE_TREE_VIEW_COLUMN);
 902
 903   /**
 904    * GtkTreeView::test-expand-row:
 905    * @tree_view: the object on which the signal is emitted
 906    * @iter: the tree iter of the row to expand
 907    * @path: a tree path that points to the row
 908    *
 909    * The given row is about to be expanded (show its children nodes). Use this
 910    * signal if you need to control the expandability of individual rows.
 911    *
 912    * Returns: %FALSE to allow expansion, %TRUE to reject
 913    */
 914   tree_view_signals[TEST_EXPAND_ROW] =
 915     g_signal_new (I_("test-expand-row"),
 916                   G_TYPE_FROM_CLASS (o_class),
 917                   G_SIGNAL_RUN_LAST,
 918                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 919                   _gtk_boolean_handled_accumulator, NULL,
 920                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 921                   G_TYPE_BOOLEAN, 2,
 922                   GTK_TYPE_TREE_ITER,
 923                   GTK_TYPE_TREE_PATH);
 924
 925   /**
 926    * GtkTreeView::test-collapse-row:
 927    * @tree_view: the object on which the signal is emitted
 928    * @iter: the tree iter of the row to collapse
 929    * @path: a tree path that points to the row
 930    *
 931    * The given row is about to be collapsed (hide its children nodes). Use this
 932    * signal if you need to control the collapsibility of individual rows.
 933    *
 934    * Returns: %FALSE to allow collapsing, %TRUE to reject
 935    */
 936   tree_view_signals[TEST_COLLAPSE_ROW] =
 937     g_signal_new (I_("test-collapse-row"),
 938                   G_TYPE_FROM_CLASS (o_class),
 939                   G_SIGNAL_RUN_LAST,
 940                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 941                   _gtk_boolean_handled_accumulator, NULL,
 942                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 943                   G_TYPE_BOOLEAN, 2,
 944                   GTK_TYPE_TREE_ITER,
 945                   GTK_TYPE_TREE_PATH);
 946
 947   /**
 948    * GtkTreeView::row-expanded:
 949    * @tree_view: the object on which the signal is emitted
 950    * @iter: the tree iter of the expanded row
 951    * @path: a tree path that points to the row
 952    *
 953    * The given row has been expanded (child nodes are shown).
 954    */
 955   tree_view_signals[ROW_EXPANDED] =
 956     g_signal_new (I_("row-expanded"),
 957                   G_TYPE_FROM_CLASS (o_class),
 958                   G_SIGNAL_RUN_LAST,
 959                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 960                   NULL, NULL,
 961                   _gtk_marshal_VOID__BOXED_BOXED,
 962                   G_TYPE_NONE, 2,
 963                   GTK_TYPE_TREE_ITER,
 964                   GTK_TYPE_TREE_PATH);
 965
 966   /**
 967    * GtkTreeView::row-collapsed:
 968    * @tree_view: the object on which the signal is emitted
 969    * @iter: the tree iter of the collapsed row
 970    * @path: a tree path that points to the row
 971    *
 972    * The given row has been collapsed (child nodes are hidden).
 973    */
 974   tree_view_signals[ROW_COLLAPSED] =
 975     g_signal_new (I_("row-collapsed"),
 976                   G_TYPE_FROM_CLASS (o_class),
 977                   G_SIGNAL_RUN_LAST,
 978                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 979                   NULL, NULL,
 980                   _gtk_marshal_VOID__BOXED_BOXED,
 981                   G_TYPE_NONE, 2,
 982                   GTK_TYPE_TREE_ITER,
 983                   GTK_TYPE_TREE_PATH);
 984
 985   /**
 986    * GtkTreeView::columns-changed:
 987    * @tree_view: the object on which the signal is emitted
 988    *
 989    * The number of columns of the treeview has changed.
 990    */
 991   tree_view_signals[COLUMNS_CHANGED] =
 992     g_signal_new (I_("columns-changed"),
 993                   G_TYPE_FROM_CLASS (o_class),
 994                   G_SIGNAL_RUN_LAST,
 995                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
 996                   NULL, NULL,
 997                   _gtk_marshal_NONE__NONE,
 998                   G_TYPE_NONE, 0);
 999
1000   /**
1001    * GtkTreeView::cursor-changed:
1002    * @tree_view: the object on which the signal is emitted
1003    *
1004    * The position of the cursor (focused cell) has changed.
1005    */
1006   tree_view_signals[CURSOR_CHANGED] =
1007     g_signal_new (I_("cursor-changed"),
1008                   G_TYPE_FROM_CLASS (o_class),
1009                   G_SIGNAL_RUN_LAST,
1010                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1011                   NULL, NULL,
1012                   _gtk_marshal_NONE__NONE,
1013                   G_TYPE_NONE, 0);
1014
1015   tree_view_signals[MOVE_CURSOR] =
1016     g_signal_new (I_("move_cursor"),
1017                   G_TYPE_FROM_CLASS (object_class),
1018                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1019                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1020                   NULL, NULL,
1021                   _gtk_marshal_BOOLEAN__ENUM_INT,
1022                   G_TYPE_BOOLEAN, 2,
1023                   GTK_TYPE_MOVEMENT_STEP,
1024                   G_TYPE_INT);
1025
1026   tree_view_signals[SELECT_ALL] =
1027     g_signal_new (I_("select_all"),
1028                   G_TYPE_FROM_CLASS (object_class),
1029                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1030                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1031                   NULL, NULL,
1032                   _gtk_marshal_BOOLEAN__NONE,
1033                   G_TYPE_BOOLEAN, 0);
1034
1035   tree_view_signals[UNSELECT_ALL] =
1036     g_signal_new (I_("unselect_all"),
1037                   G_TYPE_FROM_CLASS (object_class),
1038                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1039                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1040                   NULL, NULL,
1041                   _gtk_marshal_BOOLEAN__NONE,
1042                   G_TYPE_BOOLEAN, 0);
1043
1044   tree_view_signals[SELECT_CURSOR_ROW] =
1045     g_signal_new (I_("select_cursor_row"),
1046                   G_TYPE_FROM_CLASS (object_class),
1047                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1048                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1049                   NULL, NULL,
1050                   _gtk_marshal_BOOLEAN__BOOLEAN,
1051                   G_TYPE_BOOLEAN, 1,
1052                   G_TYPE_BOOLEAN);
1053
1054   tree_view_signals[TOGGLE_CURSOR_ROW] =
1055     g_signal_new (I_("toggle_cursor_row"),
1056                   G_TYPE_FROM_CLASS (object_class),
1057                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1058                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1059                   NULL, NULL,
1060                   _gtk_marshal_BOOLEAN__NONE,
1061                   G_TYPE_BOOLEAN, 0);
1062
1063   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1064     g_signal_new (I_("expand_collapse_cursor_row"),
1065                   G_TYPE_FROM_CLASS (object_class),
1066                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1067                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1068                   NULL, NULL,
1069                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1070                   G_TYPE_BOOLEAN, 3,
1071                   G_TYPE_BOOLEAN,
1072                   G_TYPE_BOOLEAN,
1073                   G_TYPE_BOOLEAN);
1074
1075   tree_view_signals[SELECT_CURSOR_PARENT] =
1076     g_signal_new (I_("select_cursor_parent"),
1077                   G_TYPE_FROM_CLASS (object_class),
1078                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1079                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1080                   NULL, NULL,
1081                   _gtk_marshal_BOOLEAN__NONE,
1082                   G_TYPE_BOOLEAN, 0);
1083
1084   tree_view_signals[START_INTERACTIVE_SEARCH] =
1085     g_signal_new (I_("start_interactive_search"),
1086                   G_TYPE_FROM_CLASS (object_class),
1087                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1088                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1089                   NULL, NULL,
1090                   _gtk_marshal_BOOLEAN__NONE,
1091                   G_TYPE_BOOLEAN, 0);
1092
1093   /* Key bindings */
1094   gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0, TRUE,
1095                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1096   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0, TRUE,
1097                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1098
1099   gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0, TRUE,
1100                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1101   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0, TRUE,
1102                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1103
1104   gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, FALSE,
1105                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1106
1107   gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, FALSE,
1108                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1109
1110   gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0, TRUE,
1111                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1112   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0, TRUE,
1113                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1114
1115   gtk_tree_view_add_move_binding (binding_set, GDK_End, 0, TRUE,
1116                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1117   gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0, TRUE,
1118                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1119
1120   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0, TRUE,
1121                                   GTK_MOVEMENT_PAGES, -1);
1122   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, TRUE,
1123                                   GTK_MOVEMENT_PAGES, -1);
1124
1125   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0, TRUE,
1126                                   GTK_MOVEMENT_PAGES, 1);
1127   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, TRUE,
1128                                   GTK_MOVEMENT_PAGES, 1);
1129
1130
1131   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1132                                 "move_cursor", 2,
1133                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1134                                 G_TYPE_INT, 1);
1135
1136   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1137                                 "move_cursor", 2,
1138                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1139                                 G_TYPE_INT, -1);
1140
1141   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1142                                 "move_cursor", 2,
1143                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1144                                 G_TYPE_INT, 1);
1145
1146   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1147                                 "move_cursor", 2,
1148                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1149                                 G_TYPE_INT, -1);
1150
1151   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_row", 0);
1152
1153   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
1154   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select_all", 0);
1155
1156   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
1157   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect_all", 0);
1158
1159   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select_cursor_row", 1,
1160                                 G_TYPE_BOOLEAN, TRUE);
1161
1162   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_row", 1,
1163                                 G_TYPE_BOOLEAN, TRUE);
1164   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select_cursor_row", 1,
1165                                 G_TYPE_BOOLEAN, TRUE);
1166   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select_cursor_row", 1,
1167                                 G_TYPE_BOOLEAN, TRUE);
1168   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select_cursor_row", 1,
1169                                 G_TYPE_BOOLEAN, TRUE);
1170
1171   /* expand and collapse rows */
1172   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand_collapse_cursor_row", 3,
1173                                 G_TYPE_BOOLEAN, TRUE,
1174                                 G_TYPE_BOOLEAN, TRUE,
1175                                 G_TYPE_BOOLEAN, FALSE);
1176
1177   gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "expand_collapse_cursor_row", 3,
1178                                 G_TYPE_BOOLEAN, TRUE,
1179                                 G_TYPE_BOOLEAN, TRUE,
1180                                 G_TYPE_BOOLEAN, FALSE);
1181
1182   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "expand_collapse_cursor_row", 3,
1183                                 G_TYPE_BOOLEAN, TRUE,
1184                                 G_TYPE_BOOLEAN, TRUE,
1185                                 G_TYPE_BOOLEAN, FALSE);
1186
1187
1188   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1189                                 "expand_collapse_cursor_row", 3,
1190                                 G_TYPE_BOOLEAN, TRUE,
1191                                 G_TYPE_BOOLEAN, TRUE,
1192                                 G_TYPE_BOOLEAN, TRUE);
1193   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1194                                 "expand_collapse_cursor_row", 3,
1195                                 G_TYPE_BOOLEAN, TRUE,
1196                                 G_TYPE_BOOLEAN, TRUE,
1197                                 G_TYPE_BOOLEAN, TRUE);
1198
1199   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1200                                 "expand_collapse_cursor_row", 3,
1201                                 G_TYPE_BOOLEAN, TRUE,
1202                                 G_TYPE_BOOLEAN, FALSE,
1203                                 G_TYPE_BOOLEAN, FALSE);
1204   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1205                                 "expand_collapse_cursor_row", 3,
1206                                 G_TYPE_BOOLEAN, TRUE,
1207                                 G_TYPE_BOOLEAN, FALSE,
1208                                 G_TYPE_BOOLEAN, FALSE);
1209
1210   /* Not doable on US keyboards */
1211   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1212                                 G_TYPE_BOOLEAN, TRUE,
1213                                 G_TYPE_BOOLEAN, TRUE,
1214                                 G_TYPE_BOOLEAN, TRUE);
1215   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand_collapse_cursor_row", 3,
1216                                 G_TYPE_BOOLEAN, TRUE,
1217                                 G_TYPE_BOOLEAN, TRUE,
1218                                 G_TYPE_BOOLEAN, FALSE);
1219   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1220                                 G_TYPE_BOOLEAN, TRUE,
1221                                 G_TYPE_BOOLEAN, TRUE,
1222                                 G_TYPE_BOOLEAN, TRUE);
1223   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1224                                 G_TYPE_BOOLEAN, TRUE,
1225                                 G_TYPE_BOOLEAN, TRUE,
1226                                 G_TYPE_BOOLEAN, TRUE);
1227   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_SHIFT_MASK,
1228                                 "expand_collapse_cursor_row", 3,
1229                                 G_TYPE_BOOLEAN, FALSE,
1230                                 G_TYPE_BOOLEAN, TRUE,
1231                                 G_TYPE_BOOLEAN, TRUE);
1232   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_SHIFT_MASK,
1233                                 "expand_collapse_cursor_row", 3,
1234                                 G_TYPE_BOOLEAN, FALSE,
1235                                 G_TYPE_BOOLEAN, TRUE,
1236                                 G_TYPE_BOOLEAN, TRUE);
1237   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1238                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1239                                 "expand_collapse_cursor_row", 3,
1240                                 G_TYPE_BOOLEAN, FALSE,
1241                                 G_TYPE_BOOLEAN, TRUE,
1242                                 G_TYPE_BOOLEAN, TRUE);
1243   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1244                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1245                                 "expand_collapse_cursor_row", 3,
1246                                 G_TYPE_BOOLEAN, FALSE,
1247                                 G_TYPE_BOOLEAN, TRUE,
1248                                 G_TYPE_BOOLEAN, TRUE);
1249
1250   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand_collapse_cursor_row", 3,
1251                                 G_TYPE_BOOLEAN, TRUE,
1252                                 G_TYPE_BOOLEAN, FALSE,
1253                                 G_TYPE_BOOLEAN, FALSE);
1254   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "expand_collapse_cursor_row", 3,
1255                                 G_TYPE_BOOLEAN, TRUE,
1256                                 G_TYPE_BOOLEAN, FALSE,
1257                                 G_TYPE_BOOLEAN, FALSE);
1258   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1259                                 G_TYPE_BOOLEAN, TRUE,
1260                                 G_TYPE_BOOLEAN, FALSE,
1261                                 G_TYPE_BOOLEAN, TRUE);
1262   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand_collapse_cursor_row", 3,
1263                                 G_TYPE_BOOLEAN, TRUE,
1264                                 G_TYPE_BOOLEAN, FALSE,
1265                                 G_TYPE_BOOLEAN, FALSE);
1266   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "expand_collapse_cursor_row", 3,
1267                                 G_TYPE_BOOLEAN, TRUE,
1268                                 G_TYPE_BOOLEAN, FALSE,
1269                                 G_TYPE_BOOLEAN, FALSE);
1270   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1271                                 G_TYPE_BOOLEAN, TRUE,
1272                                 G_TYPE_BOOLEAN, FALSE,
1273                                 G_TYPE_BOOLEAN, TRUE);
1274   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
1275                                 "expand_collapse_cursor_row", 3,
1276                                 G_TYPE_BOOLEAN, FALSE,
1277                                 G_TYPE_BOOLEAN, FALSE,
1278                                 G_TYPE_BOOLEAN, TRUE);
1279   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
1280                                 "expand_collapse_cursor_row", 3,
1281                                 G_TYPE_BOOLEAN, FALSE,
1282                                 G_TYPE_BOOLEAN, FALSE,
1283                                 G_TYPE_BOOLEAN, TRUE);
1284   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1285                                 GDK_CONTROL_MASK | 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,
1291                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1292                                 "expand_collapse_cursor_row", 3,
1293                                 G_TYPE_BOOLEAN, FALSE,
1294                                 G_TYPE_BOOLEAN, FALSE,
1295                                 G_TYPE_BOOLEAN, TRUE);
1296
1297   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select_cursor_parent", 0);
1298   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select_cursor_parent", 0);
1299
1300   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start_interactive_search", 0);
1301
1302   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start_interactive_search", 0);
1303
1304   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1305 }
1306
1307 static void
1308 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1309 {
1310   iface->add_child = gtk_tree_view_buildable_add_child;
1311 }
1312
1313 static void
1314 gtk_tree_view_init (GtkTreeView *tree_view)
1315 {
1316   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1317
1318   GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
1319
1320   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1321
1322   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1323                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1324                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1325
1326   /* We need some padding */
1327   tree_view->priv->dy = 0;
1328   tree_view->priv->cursor_offset = 0;
1329   tree_view->priv->n_columns = 0;
1330   tree_view->priv->header_height = 1;
1331   tree_view->priv->x_drag = 0;
1332   tree_view->priv->drag_pos = -1;
1333   tree_view->priv->header_has_focus = FALSE;
1334   tree_view->priv->pressed_button = -1;
1335   tree_view->priv->press_start_x = -1;
1336   tree_view->priv->press_start_y = -1;
1337   tree_view->priv->reorderable = FALSE;
1338   tree_view->priv->presize_handler_timer = 0;
1339   tree_view->priv->scroll_sync_timer = 0;
1340   tree_view->priv->fixed_height = -1;
1341   tree_view->priv->fixed_height_mode = FALSE;
1342   tree_view->priv->fixed_height_check = 0;
1343   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1344   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1345   tree_view->priv->enable_search = TRUE;
1346   tree_view->priv->search_column = -1;
1347   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1348   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1349   tree_view->priv->search_custom_entry_set = FALSE;
1350   tree_view->priv->typeselect_flush_timeout = 0;
1351   tree_view->priv->init_hadjust_value = TRUE;
1352   tree_view->priv->width = 0;
1353
1354   tree_view->priv->hover_selection = FALSE;
1355   tree_view->priv->hover_expand = FALSE;
1356
1357   tree_view->priv->level_indentation = 0;
1358
1359   tree_view->priv->rubber_banding_enable = FALSE;
1360
1361   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1362   tree_view->priv->tree_lines_enabled = FALSE;
1363
1364   tree_view->priv->tooltip_column = -1;
1365 }
1366
1367 \f
1368
1369 /* GObject Methods
1370  */
1371
1372 static void
1373 gtk_tree_view_set_property (GObject         *object,
1374                             guint            prop_id,
1375                             const GValue    *value,
1376                             GParamSpec      *pspec)
1377 {
1378   GtkTreeView *tree_view;
1379
1380   tree_view = GTK_TREE_VIEW (object);
1381
1382   switch (prop_id)
1383     {
1384     case PROP_MODEL:
1385       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1386       break;
1387     case PROP_HADJUSTMENT:
1388       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1389       break;
1390     case PROP_VADJUSTMENT:
1391       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1392       break;
1393     case PROP_HEADERS_VISIBLE:
1394       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1395       break;
1396     case PROP_HEADERS_CLICKABLE:
1397       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1398       break;
1399     case PROP_EXPANDER_COLUMN:
1400       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1401       break;
1402     case PROP_REORDERABLE:
1403       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1404       break;
1405     case PROP_RULES_HINT:
1406       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1407       break;
1408     case PROP_ENABLE_SEARCH:
1409       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1410       break;
1411     case PROP_SEARCH_COLUMN:
1412       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1413       break;
1414     case PROP_FIXED_HEIGHT_MODE:
1415       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1416       break;
1417     case PROP_HOVER_SELECTION:
1418       tree_view->priv->hover_selection = g_value_get_boolean (value);
1419       break;
1420     case PROP_HOVER_EXPAND:
1421       tree_view->priv->hover_expand = g_value_get_boolean (value);
1422       break;
1423     case PROP_SHOW_EXPANDERS:
1424       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1425       break;
1426     case PROP_LEVEL_INDENTATION:
1427       tree_view->priv->level_indentation = g_value_get_int (value);
1428       break;
1429     case PROP_RUBBER_BANDING:
1430       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1431       break;
1432     case PROP_ENABLE_GRID_LINES:
1433       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1434       break;
1435     case PROP_ENABLE_TREE_LINES:
1436       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1437       break;
1438     case PROP_TOOLTIP_COLUMN:
1439       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1440       break;
1441     default:
1442       break;
1443     }
1444 }
1445
1446 static void
1447 gtk_tree_view_get_property (GObject    *object,
1448                             guint       prop_id,
1449                             GValue     *value,
1450                             GParamSpec *pspec)
1451 {
1452   GtkTreeView *tree_view;
1453
1454   tree_view = GTK_TREE_VIEW (object);
1455
1456   switch (prop_id)
1457     {
1458     case PROP_MODEL:
1459       g_value_set_object (value, tree_view->priv->model);
1460       break;
1461     case PROP_HADJUSTMENT:
1462       g_value_set_object (value, tree_view->priv->hadjustment);
1463       break;
1464     case PROP_VADJUSTMENT:
1465       g_value_set_object (value, tree_view->priv->vadjustment);
1466       break;
1467     case PROP_HEADERS_VISIBLE:
1468       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1469       break;
1470     case PROP_HEADERS_CLICKABLE:
1471       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1472       break;
1473     case PROP_EXPANDER_COLUMN:
1474       g_value_set_object (value, tree_view->priv->expander_column);
1475       break;
1476     case PROP_REORDERABLE:
1477       g_value_set_boolean (value, tree_view->priv->reorderable);
1478       break;
1479     case PROP_RULES_HINT:
1480       g_value_set_boolean (value, tree_view->priv->has_rules);
1481       break;
1482     case PROP_ENABLE_SEARCH:
1483       g_value_set_boolean (value, tree_view->priv->enable_search);
1484       break;
1485     case PROP_SEARCH_COLUMN:
1486       g_value_set_int (value, tree_view->priv->search_column);
1487       break;
1488     case PROP_FIXED_HEIGHT_MODE:
1489       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1490       break;
1491     case PROP_HOVER_SELECTION:
1492       g_value_set_boolean (value, tree_view->priv->hover_selection);
1493       break;
1494     case PROP_HOVER_EXPAND:
1495       g_value_set_boolean (value, tree_view->priv->hover_expand);
1496       break;
1497     case PROP_SHOW_EXPANDERS:
1498       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1499       break;
1500     case PROP_LEVEL_INDENTATION:
1501       g_value_set_int (value, tree_view->priv->level_indentation);
1502       break;
1503     case PROP_RUBBER_BANDING:
1504       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1505       break;
1506     case PROP_ENABLE_GRID_LINES:
1507       g_value_set_enum (value, tree_view->priv->grid_lines);
1508       break;
1509     case PROP_ENABLE_TREE_LINES:
1510       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1511       break;
1512     case PROP_TOOLTIP_COLUMN:
1513       g_value_set_boolean (value, tree_view->priv->tooltip_column);
1514       break;
1515     default:
1516       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1517       break;
1518     }
1519 }
1520
1521 static void
1522 gtk_tree_view_finalize (GObject *object)
1523 {
1524   (* G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize) (object);
1525 }
1526
1527 \f
1528
1529 static void
1530 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1531                                    GtkBuilder  *builder,
1532                                    GObject     *child,
1533                                    const gchar *type)
1534 {
1535   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1536 }
1537
1538 /* GtkObject Methods
1539  */
1540
1541 static void
1542 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1543 {
1544   _gtk_rbtree_free (tree_view->priv->tree);
1545
1546   tree_view->priv->tree = NULL;
1547   tree_view->priv->button_pressed_node = NULL;
1548   tree_view->priv->button_pressed_tree = NULL;
1549   tree_view->priv->prelight_tree = NULL;
1550   tree_view->priv->prelight_node = NULL;
1551   tree_view->priv->expanded_collapsed_node = NULL;
1552   tree_view->priv->expanded_collapsed_tree = NULL;
1553 }
1554
1555 static void
1556 gtk_tree_view_destroy (GtkObject *object)
1557 {
1558   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1559   GList *list;
1560
1561   gtk_tree_view_stop_editing (tree_view, TRUE);
1562
1563   if (tree_view->priv->columns != NULL)
1564     {
1565       list = tree_view->priv->columns;
1566       while (list)
1567         {
1568           GtkTreeViewColumn *column;
1569           column = GTK_TREE_VIEW_COLUMN (list->data);
1570           list = list->next;
1571           gtk_tree_view_remove_column (tree_view, column);
1572         }
1573       tree_view->priv->columns = NULL;
1574     }
1575
1576   if (tree_view->priv->tree != NULL)
1577     {
1578       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1579
1580       gtk_tree_view_free_rbtree (tree_view);
1581     }
1582
1583   if (tree_view->priv->selection != NULL)
1584     {
1585       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1586       g_object_unref (tree_view->priv->selection);
1587       tree_view->priv->selection = NULL;
1588     }
1589
1590   if (tree_view->priv->scroll_to_path != NULL)
1591     {
1592       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1593       tree_view->priv->scroll_to_path = NULL;
1594     }
1595
1596   if (tree_view->priv->drag_dest_row != NULL)
1597     {
1598       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1599       tree_view->priv->drag_dest_row = NULL;
1600     }
1601
1602   if (tree_view->priv->last_button_press != NULL)
1603     {
1604       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
1605       tree_view->priv->last_button_press = NULL;
1606     }
1607
1608   if (tree_view->priv->last_button_press_2 != NULL)
1609     {
1610       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
1611       tree_view->priv->last_button_press_2 = NULL;
1612     }
1613
1614   if (tree_view->priv->top_row != NULL)
1615     {
1616       gtk_tree_row_reference_free (tree_view->priv->top_row);
1617       tree_view->priv->top_row = NULL;
1618     }
1619
1620   if (tree_view->priv->column_drop_func_data &&
1621       tree_view->priv->column_drop_func_data_destroy)
1622     {
1623       (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
1624       tree_view->priv->column_drop_func_data = NULL;
1625     }
1626
1627   if (tree_view->priv->destroy_count_destroy &&
1628       tree_view->priv->destroy_count_data)
1629     {
1630       (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
1631       tree_view->priv->destroy_count_data = NULL;
1632     }
1633
1634   gtk_tree_row_reference_free (tree_view->priv->cursor);
1635   tree_view->priv->cursor = NULL;
1636
1637   gtk_tree_row_reference_free (tree_view->priv->anchor);
1638   tree_view->priv->anchor = NULL;
1639
1640   /* destroy interactive search dialog */
1641   if (tree_view->priv->search_window)
1642     {
1643       gtk_widget_destroy (tree_view->priv->search_window);
1644       tree_view->priv->search_window = NULL;
1645       tree_view->priv->search_entry = NULL;
1646       if (tree_view->priv->typeselect_flush_timeout)
1647         {
1648           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1649           tree_view->priv->typeselect_flush_timeout = 0;
1650         }
1651     }
1652
1653   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1654     {
1655       (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
1656       tree_view->priv->search_user_data = NULL;
1657     }
1658
1659   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1660     {
1661       (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
1662       tree_view->priv->search_position_user_data = NULL;
1663     }
1664
1665   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1666     {
1667       (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
1668       tree_view->priv->row_separator_data = NULL;
1669     }
1670
1671   gtk_tree_view_set_model (tree_view, NULL);
1672
1673   if (tree_view->priv->hadjustment)
1674     {
1675       g_object_unref (tree_view->priv->hadjustment);
1676       tree_view->priv->hadjustment = NULL;
1677     }
1678   if (tree_view->priv->vadjustment)
1679     {
1680       g_object_unref (tree_view->priv->vadjustment);
1681       tree_view->priv->vadjustment = NULL;
1682     }
1683
1684   if (GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy)
1685     (* GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy) (object);
1686 }
1687
1688 \f
1689
1690 /* GtkWidget Methods
1691  */
1692
1693 /* GtkWidget::map helper */
1694 static void
1695 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1696 {
1697   GList *list;
1698
1699   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1700
1701   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1702     {
1703       GtkTreeViewColumn *column;
1704
1705       for (list = tree_view->priv->columns; list; list = list->next)
1706         {
1707           column = list->data;
1708           if (GTK_WIDGET_VISIBLE (column->button) &&
1709               !GTK_WIDGET_MAPPED (column->button))
1710             gtk_widget_map (column->button);
1711         }
1712       for (list = tree_view->priv->columns; list; list = list->next)
1713         {
1714           column = list->data;
1715           if (column->visible == FALSE)
1716             continue;
1717           if (column->resizable)
1718             {
1719               gdk_window_raise (column->window);
1720               gdk_window_show (column->window);
1721             }
1722           else
1723             gdk_window_hide (column->window);
1724         }
1725       gdk_window_show (tree_view->priv->header_window);
1726     }
1727 }
1728
1729 static void
1730 gtk_tree_view_map (GtkWidget *widget)
1731 {
1732   GList *tmp_list;
1733   GtkTreeView *tree_view;
1734
1735   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1736
1737   tree_view = GTK_TREE_VIEW (widget);
1738
1739   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1740
1741   tmp_list = tree_view->priv->children;
1742   while (tmp_list)
1743     {
1744       GtkTreeViewChild *child = tmp_list->data;
1745       tmp_list = tmp_list->next;
1746
1747       if (GTK_WIDGET_VISIBLE (child->widget))
1748         {
1749           if (!GTK_WIDGET_MAPPED (child->widget))
1750             gtk_widget_map (child->widget);
1751         }
1752     }
1753   gdk_window_show (tree_view->priv->bin_window);
1754
1755   gtk_tree_view_map_buttons (tree_view);
1756
1757   gdk_window_show (widget->window);
1758 }
1759
1760 static void
1761 gtk_tree_view_realize (GtkWidget *widget)
1762 {
1763   GList *tmp_list;
1764   GtkTreeView *tree_view;
1765   GdkWindowAttr attributes;
1766   gint attributes_mask;
1767
1768   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1769
1770   tree_view = GTK_TREE_VIEW (widget);
1771
1772   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1773
1774   /* Make the main, clipping window */
1775   attributes.window_type = GDK_WINDOW_CHILD;
1776   attributes.x = widget->allocation.x;
1777   attributes.y = widget->allocation.y;
1778   attributes.width = widget->allocation.width;
1779   attributes.height = widget->allocation.height;
1780   attributes.wclass = GDK_INPUT_OUTPUT;
1781   attributes.visual = gtk_widget_get_visual (widget);
1782   attributes.colormap = gtk_widget_get_colormap (widget);
1783   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1784
1785   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1786
1787   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1788                                    &attributes, attributes_mask);
1789   gdk_window_set_user_data (widget->window, widget);
1790
1791   /* Make the window for the tree */
1792   attributes.x = 0;
1793   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1794   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1795   attributes.height = widget->allocation.height;
1796   attributes.event_mask = GDK_EXPOSURE_MASK |
1797     GDK_SCROLL_MASK |
1798     GDK_POINTER_MOTION_MASK |
1799     GDK_ENTER_NOTIFY_MASK |
1800     GDK_LEAVE_NOTIFY_MASK |
1801     GDK_BUTTON_PRESS_MASK |
1802     GDK_BUTTON_RELEASE_MASK |
1803     gtk_widget_get_events (widget);
1804
1805   tree_view->priv->bin_window = gdk_window_new (widget->window,
1806                                                 &attributes, attributes_mask);
1807   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1808
1809   /* Make the column header window */
1810   attributes.x = 0;
1811   attributes.y = 0;
1812   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1813   attributes.height = tree_view->priv->header_height;
1814   attributes.event_mask = (GDK_EXPOSURE_MASK |
1815                            GDK_SCROLL_MASK |
1816                            GDK_BUTTON_PRESS_MASK |
1817                            GDK_BUTTON_RELEASE_MASK |
1818                            GDK_KEY_PRESS_MASK |
1819                            GDK_KEY_RELEASE_MASK) |
1820     gtk_widget_get_events (widget);
1821
1822   tree_view->priv->header_window = gdk_window_new (widget->window,
1823                                                    &attributes, attributes_mask);
1824   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1825
1826   /* Add them all up. */
1827   widget->style = gtk_style_attach (widget->style, widget->window);
1828   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1829   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1830   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1831
1832   tmp_list = tree_view->priv->children;
1833   while (tmp_list)
1834     {
1835       GtkTreeViewChild *child = tmp_list->data;
1836       tmp_list = tmp_list->next;
1837
1838       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1839     }
1840
1841   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1842     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1843
1844   /* Need to call those here, since they create GCs */
1845   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1846   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1847
1848   install_presize_handler (tree_view);
1849 }
1850
1851 static void
1852 gtk_tree_view_unrealize (GtkWidget *widget)
1853 {
1854   GtkTreeView *tree_view;
1855   GtkTreeViewPrivate *priv;
1856   GList *list;
1857
1858   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1859
1860   tree_view = GTK_TREE_VIEW (widget);
1861   priv = tree_view->priv;
1862
1863   if (priv->scroll_timeout != 0)
1864     {
1865       g_source_remove (priv->scroll_timeout);
1866       priv->scroll_timeout = 0;
1867     }
1868
1869   if (priv->auto_expand_timeout != 0)
1870     {
1871       g_source_remove (priv->auto_expand_timeout);
1872       priv->auto_expand_timeout = 0;
1873     }
1874
1875   if (priv->open_dest_timeout != 0)
1876     {
1877       g_source_remove (priv->open_dest_timeout);
1878       priv->open_dest_timeout = 0;
1879     }
1880
1881   if (priv->expand_collapse_timeout != 0)
1882     {
1883       g_source_remove (priv->expand_collapse_timeout);
1884       priv->expand_collapse_timeout = 0;
1885     }
1886
1887   if (priv->presize_handler_timer != 0)
1888     {
1889       g_source_remove (priv->presize_handler_timer);
1890       priv->presize_handler_timer = 0;
1891     }
1892
1893   if (priv->validate_rows_timer != 0)
1894     {
1895       g_source_remove (priv->validate_rows_timer);
1896       priv->validate_rows_timer = 0;
1897     }
1898
1899   if (priv->scroll_sync_timer != 0)
1900     {
1901       g_source_remove (priv->scroll_sync_timer);
1902       priv->scroll_sync_timer = 0;
1903     }
1904
1905   if (priv->typeselect_flush_timeout)
1906     {
1907       g_source_remove (priv->typeselect_flush_timeout);
1908       priv->typeselect_flush_timeout = 0;
1909     }
1910
1911   for (list = priv->columns; list; list = list->next)
1912     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1913
1914   gdk_window_set_user_data (priv->bin_window, NULL);
1915   gdk_window_destroy (priv->bin_window);
1916   priv->bin_window = NULL;
1917
1918   gdk_window_set_user_data (priv->header_window, NULL);
1919   gdk_window_destroy (priv->header_window);
1920   priv->header_window = NULL;
1921
1922   if (priv->drag_window)
1923     {
1924       gdk_window_set_user_data (priv->drag_window, NULL);
1925       gdk_window_destroy (priv->drag_window);
1926       priv->drag_window = NULL;
1927     }
1928
1929   if (priv->drag_highlight_window)
1930     {
1931       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1932       gdk_window_destroy (priv->drag_highlight_window);
1933       priv->drag_highlight_window = NULL;
1934     }
1935
1936   if (priv->tree_line_gc)
1937     {
1938       g_object_unref (priv->tree_line_gc);
1939       priv->tree_line_gc = NULL;
1940     }
1941
1942   if (priv->grid_line_gc)
1943     {
1944       g_object_unref (priv->grid_line_gc);
1945       priv->grid_line_gc = NULL;
1946     }
1947
1948   /* GtkWidget::unrealize destroys children and widget->window */
1949   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize)
1950     (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize) (widget);
1951 }
1952
1953 /* GtkWidget::size_request helper */
1954 static void
1955 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1956 {
1957   GList *list;
1958
1959   tree_view->priv->header_height = 0;
1960
1961   if (tree_view->priv->model)
1962     {
1963       for (list = tree_view->priv->columns; list; list = list->next)
1964         {
1965           GtkRequisition requisition;
1966           GtkTreeViewColumn *column = list->data;
1967
1968           if (column->button == NULL)
1969             continue;
1970
1971           column = list->data;
1972
1973           gtk_widget_size_request (column->button, &requisition);
1974           column->button_request = requisition.width;
1975           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1976         }
1977     }
1978 }
1979
1980
1981 /* Called only by ::size_request */
1982 static void
1983 gtk_tree_view_update_size (GtkTreeView *tree_view)
1984 {
1985   GList *list;
1986   GtkTreeViewColumn *column;
1987   gint i;
1988
1989   if (tree_view->priv->model == NULL)
1990     {
1991       tree_view->priv->width = 0;
1992       tree_view->priv->prev_width = 0;
1993       tree_view->priv->height = 0;
1994       return;
1995     }
1996
1997   tree_view->priv->prev_width = tree_view->priv->width;
1998   tree_view->priv->width = 0;
1999   /* keep this in sync with size_allocate below */
2000   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
2001     {
2002       gint real_requested_width = 0;
2003       column = list->data;
2004       if (!column->visible)
2005         continue;
2006
2007       if (column->use_resized_width)
2008         {
2009           real_requested_width = column->resized_width;
2010         }
2011       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2012         {
2013           real_requested_width = column->fixed_width;
2014         }
2015       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2016         {
2017           real_requested_width = MAX (column->requested_width, column->button_request);
2018         }
2019       else
2020         {
2021           real_requested_width = column->requested_width;
2022         }
2023
2024       if (column->min_width != -1)
2025         real_requested_width = MAX (real_requested_width, column->min_width);
2026       if (column->max_width != -1)
2027         real_requested_width = MIN (real_requested_width, column->max_width);
2028
2029       tree_view->priv->width += real_requested_width;
2030     }
2031
2032   if (tree_view->priv->tree == NULL)
2033     tree_view->priv->height = 0;
2034   else
2035     tree_view->priv->height = tree_view->priv->tree->root->offset;
2036 }
2037
2038 static void
2039 gtk_tree_view_size_request (GtkWidget      *widget,
2040                             GtkRequisition *requisition)
2041 {
2042   GtkTreeView *tree_view;
2043   GList *tmp_list;
2044
2045   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
2046
2047   tree_view = GTK_TREE_VIEW (widget);
2048
2049   /* we validate GTK_TREE_VIEW_NUM_ROWS_PER_IDLE rows initially just to make
2050    * sure we have some size. In practice, with a lot of static lists, this
2051    * should get a good width.
2052    */
2053   do_validate_rows (tree_view, FALSE);
2054   gtk_tree_view_size_request_columns (tree_view);
2055   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2056
2057   requisition->width = tree_view->priv->width;
2058   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2059
2060   tmp_list = tree_view->priv->children;
2061
2062   while (tmp_list)
2063     {
2064       GtkTreeViewChild *child = tmp_list->data;
2065       GtkRequisition child_requisition;
2066
2067       tmp_list = tmp_list->next;
2068
2069       if (GTK_WIDGET_VISIBLE (child->widget))
2070         gtk_widget_size_request (child->widget, &child_requisition);
2071     }
2072 }
2073
2074
2075 static void
2076 invalidate_column (GtkTreeView       *tree_view,
2077                    GtkTreeViewColumn *column)
2078 {
2079   gint column_offset = 0;
2080   GList *list;
2081   GtkWidget *widget = GTK_WIDGET (tree_view);
2082   gboolean rtl;
2083
2084   if (!GTK_WIDGET_REALIZED (widget))
2085     return;
2086
2087   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2088   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2089        list;
2090        list = (rtl ? list->prev : list->next))
2091     {
2092       GtkTreeViewColumn *tmpcolumn = list->data;
2093       if (tmpcolumn == column)
2094         {
2095           GdkRectangle invalid_rect;
2096
2097           invalid_rect.x = column_offset;
2098           invalid_rect.y = 0;
2099           invalid_rect.width = column->width;
2100           invalid_rect.height = widget->allocation.height;
2101
2102           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2103           break;
2104         }
2105
2106       column_offset += tmpcolumn->width;
2107     }
2108 }
2109
2110 static void
2111 invalidate_last_column (GtkTreeView *tree_view)
2112 {
2113   GList *last_column;
2114   gboolean rtl;
2115
2116   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2117
2118   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2119        last_column;
2120        last_column = (rtl ? last_column->next : last_column->prev))
2121     {
2122       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2123         {
2124           invalidate_column (tree_view, last_column->data);
2125           return;
2126         }
2127     }
2128 }
2129
2130 static gint
2131 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2132                                                     GtkTreeViewColumn *column)
2133 {
2134   gint real_requested_width;
2135
2136   if (column->use_resized_width)
2137     {
2138       real_requested_width = column->resized_width;
2139     }
2140   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2141     {
2142       real_requested_width = column->fixed_width;
2143     }
2144   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2145     {
2146       real_requested_width = MAX (column->requested_width, column->button_request);
2147     }
2148   else
2149     {
2150       real_requested_width = column->requested_width;
2151       if (real_requested_width < 0)
2152         real_requested_width = 0;
2153     }
2154
2155   if (column->min_width != -1)
2156     real_requested_width = MAX (real_requested_width, column->min_width);
2157   if (column->max_width != -1)
2158     real_requested_width = MIN (real_requested_width, column->max_width);
2159
2160   return real_requested_width;
2161 }
2162
2163 /* GtkWidget::size_allocate helper */
2164 static void
2165 gtk_tree_view_size_allocate_columns (GtkWidget *widget)
2166 {
2167   GtkTreeView *tree_view;
2168   GList *list, *first_column, *last_column;
2169   GtkTreeViewColumn *column;
2170   GtkAllocation allocation;
2171   gint width = 0;
2172   gint extra, extra_per_column;
2173   gint full_requested_width = 0;
2174   gint number_of_expand_columns = 0;
2175   gboolean column_changed = FALSE;
2176   gboolean rtl;
2177
2178   tree_view = GTK_TREE_VIEW (widget);
2179
2180   for (last_column = g_list_last (tree_view->priv->columns);
2181        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2182        last_column = last_column->prev)
2183     ;
2184   if (last_column == NULL)
2185     return;
2186
2187   for (first_column = g_list_first (tree_view->priv->columns);
2188        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2189        first_column = first_column->next)
2190     ;
2191
2192   allocation.y = 0;
2193   allocation.height = tree_view->priv->header_height;
2194
2195   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2196
2197   /* find out how many extra space and expandable columns we have */
2198   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2199     {
2200       column = (GtkTreeViewColumn *)list->data;
2201
2202       if (!column->visible)
2203         continue;
2204
2205       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2206
2207       if (column->expand)
2208         number_of_expand_columns++;
2209     }
2210
2211   extra = MAX (widget->allocation.width - full_requested_width, 0);
2212   if (number_of_expand_columns > 0)
2213     extra_per_column = extra/number_of_expand_columns;
2214   else
2215     extra_per_column = 0;
2216
2217   for (list = (rtl ? last_column : first_column);
2218        list != (rtl ? first_column->prev : last_column->next);
2219        list = (rtl ? list->prev : list->next))
2220     {
2221       gint real_requested_width = 0;
2222       gint old_width;
2223
2224       column = list->data;
2225       old_width = column->width;
2226
2227       if (!column->visible)
2228         continue;
2229
2230       /* We need to handle the dragged button specially.
2231        */
2232       if (column == tree_view->priv->drag_column)
2233         {
2234           GtkAllocation drag_allocation;
2235           gdk_drawable_get_size (tree_view->priv->drag_window,
2236                                  &(drag_allocation.width),
2237                                  &(drag_allocation.height));
2238           drag_allocation.x = 0;
2239           drag_allocation.y = 0;
2240           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2241                                     &drag_allocation);
2242           width += drag_allocation.width;
2243           continue;
2244         }
2245
2246       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2247
2248       allocation.x = width;
2249       column->width = real_requested_width;
2250
2251       if (column->expand)
2252         {
2253           if (number_of_expand_columns == 1)
2254             {
2255               /* We add the remander to the last column as
2256                * */
2257               column->width += extra;
2258             }
2259           else
2260             {
2261               column->width += extra_per_column;
2262               extra -= extra_per_column;
2263               number_of_expand_columns --;
2264             }
2265         }
2266       else if (number_of_expand_columns == 0 &&
2267                list == last_column)
2268         {
2269           column->width += extra;
2270         }
2271
2272       g_object_notify (G_OBJECT (column), "width");
2273
2274       allocation.width = column->width;
2275       width += column->width;
2276
2277       if (column->width > old_width)
2278         column_changed = TRUE;
2279
2280       gtk_widget_size_allocate (column->button, &allocation);
2281
2282       if (column->window)
2283         gdk_window_move_resize (column->window,
2284                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2285                                 allocation.y,
2286                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2287     }
2288
2289   if (column_changed)
2290     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2291 }
2292
2293
2294 static void
2295 gtk_tree_view_size_allocate (GtkWidget     *widget,
2296                              GtkAllocation *allocation)
2297 {
2298   GList *tmp_list;
2299   GtkTreeView *tree_view;
2300   gboolean width_changed = FALSE;
2301   gint old_width = widget->allocation.width;
2302
2303   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
2304
2305   if (allocation->width != widget->allocation.width)
2306     width_changed = TRUE;
2307
2308   widget->allocation = *allocation;
2309
2310   tree_view = GTK_TREE_VIEW (widget);
2311
2312   tmp_list = tree_view->priv->children;
2313
2314   while (tmp_list)
2315     {
2316       GtkAllocation allocation;
2317
2318       GtkTreeViewChild *child = tmp_list->data;
2319       tmp_list = tmp_list->next;
2320
2321       /* totally ignore our child's requisition */
2322       allocation.x = child->x;
2323       allocation.y = child->y;
2324       allocation.width = child->width;
2325       allocation.height = child->height;
2326       gtk_widget_size_allocate (child->widget, &allocation);
2327     }
2328
2329
2330   tree_view->priv->hadjustment->page_size = allocation->width;
2331   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2332   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2333   tree_view->priv->hadjustment->lower = 0;
2334   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2335
2336   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2337      {
2338       if (allocation->width < tree_view->priv->width)
2339          {
2340          if (tree_view->priv->init_hadjust_value)
2341            {
2342            tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2343            tree_view->priv->init_hadjust_value = FALSE;
2344            }
2345          else if(allocation->width != old_width)
2346            tree_view->priv->hadjustment->value = CLAMP(tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2347          else
2348            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);
2349          }
2350       else
2351          {
2352          tree_view->priv->hadjustment->value = 0;
2353          tree_view->priv->init_hadjust_value = TRUE;
2354          }
2355      }
2356   else
2357      if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2358         tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2359
2360   gtk_adjustment_changed (tree_view->priv->hadjustment);
2361
2362   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2363   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2364   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2365   tree_view->priv->vadjustment->lower = 0;
2366   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2367
2368   gtk_adjustment_changed (tree_view->priv->vadjustment);
2369
2370   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2371   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2372     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2373   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2374     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2375                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2376   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2377     gtk_tree_view_top_row_to_dy (tree_view);
2378   else
2379     gtk_tree_view_dy_to_top_row (tree_view);
2380
2381   if (GTK_WIDGET_REALIZED (widget))
2382     {
2383       gdk_window_move_resize (widget->window,
2384                               allocation->x, allocation->y,
2385                               allocation->width, allocation->height);
2386       gdk_window_move_resize (tree_view->priv->header_window,
2387                               - (gint) tree_view->priv->hadjustment->value,
2388                               0,
2389                               MAX (tree_view->priv->width, allocation->width),
2390                               tree_view->priv->header_height);
2391       gdk_window_move_resize (tree_view->priv->bin_window,
2392                               - (gint) tree_view->priv->hadjustment->value,
2393                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2394                               MAX (tree_view->priv->width, allocation->width),
2395                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2396     }
2397
2398   gtk_tree_view_size_allocate_columns (widget);
2399
2400   if (tree_view->priv->tree == NULL)
2401     invalidate_empty_focus (tree_view);
2402
2403   if (GTK_WIDGET_REALIZED (widget))
2404     {
2405       gboolean has_expand_column = FALSE;
2406       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2407         {
2408           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2409             {
2410               has_expand_column = TRUE;
2411               break;
2412             }
2413         }
2414
2415       /* This little hack only works if we have an LTR locale, and no column has the  */
2416       if (width_changed)
2417         {
2418           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2419               ! has_expand_column)
2420             invalidate_last_column (tree_view);
2421           else
2422             gtk_widget_queue_draw (widget);
2423         }
2424     }
2425 }
2426
2427 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2428 static void
2429 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2430 {
2431   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
2432     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2433   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2434 }
2435
2436 static gboolean
2437 gtk_tree_view_button_press (GtkWidget      *widget,
2438                             GdkEventButton *event)
2439 {
2440   GtkTreeView *tree_view;
2441   GList *list;
2442   GtkTreeViewColumn *column = NULL;
2443   gint i;
2444   GdkRectangle background_area;
2445   GdkRectangle cell_area;
2446   gint vertical_separator;
2447   gint horizontal_separator;
2448   gboolean rtl;
2449
2450   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
2451   g_return_val_if_fail (event != NULL, FALSE);
2452
2453   tree_view = GTK_TREE_VIEW (widget);
2454   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2455   gtk_tree_view_stop_editing (tree_view, FALSE);
2456   gtk_widget_style_get (widget,
2457                         "vertical-separator", &vertical_separator,
2458                         "horizontal-separator", &horizontal_separator,
2459                         NULL);
2460
2461
2462   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2463    * we're done handling the button press.
2464    */
2465
2466   if (event->window == tree_view->priv->bin_window)
2467     {
2468       GtkRBNode *node;
2469       GtkRBTree *tree;
2470       GtkTreePath *path;
2471       gchar *path_string;
2472       gint depth;
2473       gint new_y;
2474       gint y_offset;
2475       gint dval;
2476       gint pre_val, aft_val;
2477       GtkTreeViewColumn *column = NULL;
2478       GtkCellRenderer *focus_cell = NULL;
2479       gint column_handled_click = FALSE;
2480       gboolean row_double_click = FALSE;
2481       gboolean rtl;
2482       gboolean node_selected;
2483
2484       /* Empty tree? */
2485       if (tree_view->priv->tree == NULL)
2486         {
2487           grab_focus_and_unset_draw_keyfocus (tree_view);
2488           return TRUE;
2489         }
2490
2491       /* are we in an arrow? */
2492       if (tree_view->priv->prelight_node &&
2493           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2494           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2495         {
2496           if (event->button == 1)
2497             {
2498               gtk_grab_add (widget);
2499               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2500               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2501               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2502                                         tree_view->priv->prelight_tree,
2503                                         tree_view->priv->prelight_node,
2504                                         event->x,
2505                                         event->y);
2506             }
2507
2508           grab_focus_and_unset_draw_keyfocus (tree_view);
2509           return TRUE;
2510         }
2511
2512       /* find the node that was clicked */
2513       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2514       if (new_y < 0)
2515         new_y = 0;
2516       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2517
2518       if (node == NULL)
2519         {
2520           /* We clicked in dead space */
2521           grab_focus_and_unset_draw_keyfocus (tree_view);
2522           return TRUE;
2523         }
2524
2525       /* Get the path and the node */
2526       path = _gtk_tree_view_find_path (tree_view, tree, node);
2527       depth = gtk_tree_path_get_depth (path);
2528       background_area.y = y_offset + event->y;
2529       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2530       background_area.x = 0;
2531
2532
2533       /* Let the column have a chance at selecting it. */
2534       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2535       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2536            list; list = (rtl ? list->prev : list->next))
2537         {
2538           GtkTreeViewColumn *candidate = list->data;
2539
2540           if (!candidate->visible)
2541             continue;
2542
2543           background_area.width = candidate->width;
2544           if ((background_area.x > (gint) event->x) ||
2545               (background_area.x + background_area.width <= (gint) event->x))
2546             {
2547               background_area.x += background_area.width;
2548               continue;
2549             }
2550
2551           /* we found the focus column */
2552           column = candidate;
2553           cell_area = background_area;
2554           cell_area.width -= horizontal_separator;
2555           cell_area.height -= vertical_separator;
2556           cell_area.x += horizontal_separator/2;
2557           cell_area.y += vertical_separator/2;
2558           if (gtk_tree_view_is_expander_column (tree_view, column))
2559             {
2560               if (!rtl)
2561                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2562               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2563
2564               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2565                 {
2566                   if (!rtl)
2567                     cell_area.x += depth * tree_view->priv->expander_size;
2568                   cell_area.width -= depth * tree_view->priv->expander_size;
2569                 }
2570             }
2571           break;
2572         }
2573
2574       if (column == NULL)
2575         {
2576           gtk_tree_path_free (path);
2577           grab_focus_and_unset_draw_keyfocus (tree_view);
2578           return FALSE;
2579         }
2580
2581       tree_view->priv->focus_column = column;
2582
2583       /* decide if we edit */
2584       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2585           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2586         {
2587           GtkTreePath *anchor;
2588           GtkTreeIter iter;
2589
2590           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2591           gtk_tree_view_column_cell_set_cell_data (column,
2592                                                    tree_view->priv->model,
2593                                                    &iter,
2594                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2595                                                    node->children?TRUE:FALSE);
2596
2597           if (tree_view->priv->anchor)
2598             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2599           else
2600             anchor = NULL;
2601
2602           if ((anchor && !gtk_tree_path_compare (anchor, path))
2603               || !_gtk_tree_view_column_has_editable_cell (column))
2604             {
2605               GtkCellEditable *cell_editable = NULL;
2606
2607               /* FIXME: get the right flags */
2608               guint flags = 0;
2609
2610               path_string = gtk_tree_path_to_string (path);
2611
2612               if (_gtk_tree_view_column_cell_event (column,
2613                                                     &cell_editable,
2614                                                     (GdkEvent *)event,
2615                                                     path_string,
2616                                                     &background_area,
2617                                                     &cell_area, flags))
2618                 {
2619                   if (cell_editable != NULL)
2620                     {
2621                       gint left, right;
2622                       GdkRectangle area;
2623
2624                       area = cell_area;
2625                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2626
2627                       area.x += left;
2628                       area.width -= right + left;
2629
2630                       gtk_tree_view_real_start_editing (tree_view,
2631                                                         column,
2632                                                         path,
2633                                                         cell_editable,
2634                                                         &area,
2635                                                         (GdkEvent *)event,
2636                                                         flags);
2637                       g_free (path_string);
2638                       gtk_tree_path_free (path);
2639                       gtk_tree_path_free (anchor);
2640                       return TRUE;
2641                     }
2642                   column_handled_click = TRUE;
2643                 }
2644               g_free (path_string);
2645             }
2646           if (anchor)
2647             gtk_tree_path_free (anchor);
2648         }
2649
2650       /* select */
2651       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2652       pre_val = tree_view->priv->vadjustment->value;
2653
2654       /* we only handle selection modifications on the first button press
2655        */
2656       if (event->type == GDK_BUTTON_PRESS)
2657         {
2658           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2659             tree_view->priv->ctrl_pressed = TRUE;
2660           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2661             tree_view->priv->shift_pressed = TRUE;
2662
2663           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2664           if (focus_cell)
2665             gtk_tree_view_column_focus_cell (column, focus_cell);
2666
2667           if (event->state & GDK_CONTROL_MASK)
2668             {
2669               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2670               gtk_tree_view_real_toggle_cursor_row (tree_view);
2671             }
2672           else if (event->state & GDK_SHIFT_MASK)
2673             {
2674               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2675               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2676             }
2677           else
2678             {
2679               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2680             }
2681
2682           tree_view->priv->ctrl_pressed = FALSE;
2683           tree_view->priv->shift_pressed = FALSE;
2684         }
2685
2686       /* the treeview may have been scrolled because of _set_cursor,
2687        * correct here
2688        */
2689
2690       aft_val = tree_view->priv->vadjustment->value;
2691       dval = pre_val - aft_val;
2692
2693       cell_area.y += dval;
2694       background_area.y += dval;
2695
2696       /* Save press to possibly begin a drag
2697        */
2698       if (!column_handled_click &&
2699           !tree_view->priv->in_grab &&
2700           tree_view->priv->pressed_button < 0)
2701         {
2702           tree_view->priv->pressed_button = event->button;
2703           tree_view->priv->press_start_x = event->x;
2704           tree_view->priv->press_start_y = event->y;
2705
2706           if (tree_view->priv->rubber_banding_enable
2707               && !node_selected
2708               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2709             {
2710               tree_view->priv->press_start_y += tree_view->priv->dy;
2711               tree_view->priv->rubber_band_x = event->x;
2712               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2713               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2714
2715               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2716                 tree_view->priv->rubber_band_ctrl = TRUE;
2717               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2718                 tree_view->priv->rubber_band_shift = TRUE;
2719             }
2720         }
2721
2722       /* Test if a double click happened on the same row. */
2723       if (event->button == 1)
2724         {
2725           /* We also handle triple clicks here, because a user could have done
2726            * a first click and a second double click on different rows.
2727            */
2728           if ((event->type == GDK_2BUTTON_PRESS
2729                || event->type == GDK_3BUTTON_PRESS)
2730               && tree_view->priv->last_button_press)
2731             {
2732               GtkTreePath *lsc;
2733
2734               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2735
2736               if (lsc)
2737                 {
2738                   row_double_click = !gtk_tree_path_compare (lsc, path);
2739                   gtk_tree_path_free (lsc);
2740                 }
2741             }
2742
2743           if (row_double_click)
2744             {
2745               if (tree_view->priv->last_button_press)
2746                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2747               if (tree_view->priv->last_button_press_2)
2748                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2749               tree_view->priv->last_button_press = NULL;
2750               tree_view->priv->last_button_press_2 = NULL;
2751             }
2752           else
2753             {
2754               if (tree_view->priv->last_button_press)
2755                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2756               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2757               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2758             }
2759         }
2760
2761       if (row_double_click)
2762         {
2763           gtk_grab_remove (widget);
2764           gtk_tree_view_row_activated (tree_view, path, column);
2765
2766           if (tree_view->priv->pressed_button == event->button)
2767             tree_view->priv->pressed_button = -1;
2768         }
2769
2770       gtk_tree_path_free (path);
2771
2772       /* If we activated the row through a double click we don't want to grab
2773        * focus back, as moving focus to another widget is pretty common.
2774        */
2775       if (!row_double_click)
2776         grab_focus_and_unset_draw_keyfocus (tree_view);
2777
2778       return TRUE;
2779     }
2780
2781   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2782    */
2783   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2784     {
2785       column = list->data;
2786       if (event->window == column->window &&
2787           column->resizable &&
2788           column->window)
2789         {
2790           gpointer drag_data;
2791
2792           if (event->type == GDK_2BUTTON_PRESS &&
2793               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2794             {
2795               column->use_resized_width = FALSE;
2796               _gtk_tree_view_column_autosize (tree_view, column);
2797               return TRUE;
2798             }
2799
2800           if (gdk_pointer_grab (column->window, FALSE,
2801                                 GDK_POINTER_MOTION_HINT_MASK |
2802                                 GDK_BUTTON1_MOTION_MASK |
2803                                 GDK_BUTTON_RELEASE_MASK,
2804                                 NULL, NULL, event->time))
2805             return FALSE;
2806
2807           gtk_grab_add (widget);
2808           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2809           column->resized_width = column->width;
2810
2811           /* block attached dnd signal handler */
2812           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2813           if (drag_data)
2814             g_signal_handlers_block_matched (widget,
2815                                              G_SIGNAL_MATCH_DATA,
2816                                              0, 0, NULL, NULL,
2817                                              drag_data);
2818
2819           tree_view->priv->drag_pos = i;
2820           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2821
2822           if (!GTK_WIDGET_HAS_FOCUS (widget))
2823             gtk_widget_grab_focus (widget);
2824
2825           return TRUE;
2826         }
2827     }
2828   return FALSE;
2829 }
2830
2831 /* GtkWidget::button_release_event helper */
2832 static gboolean
2833 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2834                                           GdkEventButton *event)
2835 {
2836   GtkTreeView *tree_view;
2837   gboolean rtl;
2838
2839   tree_view = GTK_TREE_VIEW (widget);
2840
2841   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2842   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2843   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2844
2845   /* Move the button back */
2846   g_object_ref (tree_view->priv->drag_column->button);
2847   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2848   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2849   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2850   g_object_unref (tree_view->priv->drag_column->button);
2851   gtk_widget_queue_resize (widget);
2852   if (tree_view->priv->drag_column->resizable)
2853     {
2854       gdk_window_raise (tree_view->priv->drag_column->window);
2855       gdk_window_show (tree_view->priv->drag_column->window);
2856     }
2857   else
2858     gdk_window_hide (tree_view->priv->drag_column->window);
2859
2860   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2861
2862   if (rtl)
2863     {
2864       if (tree_view->priv->cur_reorder &&
2865           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2866         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2867                                          tree_view->priv->cur_reorder->right_column);
2868     }
2869   else
2870     {
2871       if (tree_view->priv->cur_reorder &&
2872           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2873         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2874                                          tree_view->priv->cur_reorder->left_column);
2875     }
2876   tree_view->priv->drag_column = NULL;
2877   gdk_window_hide (tree_view->priv->drag_window);
2878
2879   g_list_foreach (tree_view->priv->column_drag_info, (GFunc) g_free, NULL);
2880   g_list_free (tree_view->priv->column_drag_info);
2881   tree_view->priv->column_drag_info = NULL;
2882   tree_view->priv->cur_reorder = NULL;
2883
2884   if (tree_view->priv->drag_highlight_window)
2885     gdk_window_hide (tree_view->priv->drag_highlight_window);
2886
2887   /* Reset our flags */
2888   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2889   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2890
2891   return TRUE;
2892 }
2893
2894 /* GtkWidget::button_release_event helper */
2895 static gboolean
2896 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2897                                             GdkEventButton *event)
2898 {
2899   GtkTreeView *tree_view;
2900   gpointer drag_data;
2901
2902   tree_view = GTK_TREE_VIEW (widget);
2903
2904   tree_view->priv->drag_pos = -1;
2905
2906   /* unblock attached dnd signal handler */
2907   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2908   if (drag_data)
2909     g_signal_handlers_unblock_matched (widget,
2910                                        G_SIGNAL_MATCH_DATA,
2911                                        0, 0, NULL, NULL,
2912                                        drag_data);
2913
2914   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2915   gtk_grab_remove (widget);
2916   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2917                               event->time);
2918   return TRUE;
2919 }
2920
2921 static gboolean
2922 gtk_tree_view_button_release (GtkWidget      *widget,
2923                               GdkEventButton *event)
2924 {
2925   GtkTreeView *tree_view;
2926
2927   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
2928   g_return_val_if_fail (event != NULL, FALSE);
2929
2930   tree_view = GTK_TREE_VIEW (widget);
2931
2932   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2933     return gtk_tree_view_button_release_drag_column (widget, event);
2934
2935   if (tree_view->priv->rubber_band_status)
2936     gtk_tree_view_stop_rubber_band (tree_view);
2937
2938   if (tree_view->priv->pressed_button == event->button)
2939     tree_view->priv->pressed_button = -1;
2940
2941   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
2942     return gtk_tree_view_button_release_column_resize (widget, event);
2943
2944   if (tree_view->priv->button_pressed_node == NULL)
2945     return FALSE;
2946
2947   if (event->button == 1)
2948     {
2949       gtk_grab_remove (widget);
2950       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
2951           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
2952         {
2953           GtkTreePath *path = NULL;
2954
2955           path = _gtk_tree_view_find_path (tree_view,
2956                                            tree_view->priv->button_pressed_tree,
2957                                            tree_view->priv->button_pressed_node);
2958           /* Actually activate the node */
2959           if (tree_view->priv->button_pressed_node->children == NULL)
2960             gtk_tree_view_real_expand_row (tree_view, path,
2961                                            tree_view->priv->button_pressed_tree,
2962                                            tree_view->priv->button_pressed_node,
2963                                            FALSE, TRUE);
2964           else
2965             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
2966                                              tree_view->priv->button_pressed_tree,
2967                                              tree_view->priv->button_pressed_node, TRUE);
2968           gtk_tree_path_free (path);
2969         }
2970
2971       tree_view->priv->button_pressed_tree = NULL;
2972       tree_view->priv->button_pressed_node = NULL;
2973     }
2974
2975   return TRUE;
2976 }
2977
2978 static gboolean
2979 gtk_tree_view_grab_broken (GtkWidget          *widget,
2980                            GdkEventGrabBroken *event)
2981 {
2982   GtkTreeView *tree_view;
2983
2984   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
2985   g_return_val_if_fail (event != NULL, FALSE);
2986
2987   tree_view = GTK_TREE_VIEW (widget);
2988
2989   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2990     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
2991
2992   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
2993     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
2994
2995   return TRUE;
2996 }
2997
2998 #if 0
2999 static gboolean
3000 gtk_tree_view_configure (GtkWidget *widget,
3001                          GdkEventConfigure *event)
3002 {
3003   GtkTreeView *tree_view;
3004
3005   tree_view = GTK_TREE_VIEW (widget);
3006   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3007
3008   return FALSE;
3009 }
3010 #endif
3011
3012 /* GtkWidget::motion_event function set.
3013  */
3014
3015 static gboolean
3016 coords_are_over_arrow (GtkTreeView *tree_view,
3017                        GtkRBTree   *tree,
3018                        GtkRBNode   *node,
3019                        /* these are in bin window coords */
3020                        gint         x,
3021                        gint         y)
3022 {
3023   GdkRectangle arrow;
3024   gint x2;
3025
3026   if (!GTK_WIDGET_REALIZED (tree_view))
3027     return FALSE;
3028
3029   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3030     return FALSE;
3031
3032   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3033
3034   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3035
3036   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3037
3038   arrow.width = x2 - arrow.x;
3039
3040   return (x >= arrow.x &&
3041           x < (arrow.x + arrow.width) &&
3042           y >= arrow.y &&
3043           y < (arrow.y + arrow.height));
3044 }
3045
3046 static gboolean
3047 auto_expand_timeout (gpointer data)
3048 {
3049   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3050   GtkTreePath *path;
3051
3052   if (tree_view->priv->prelight_node)
3053     {
3054       path = _gtk_tree_view_find_path (tree_view,
3055                                        tree_view->priv->prelight_tree,
3056                                        tree_view->priv->prelight_node);
3057
3058       if (tree_view->priv->prelight_node->children)
3059         gtk_tree_view_collapse_row (tree_view, path);
3060       else
3061         gtk_tree_view_expand_row (tree_view, path, FALSE);
3062
3063       gtk_tree_path_free (path);
3064     }
3065
3066   tree_view->priv->auto_expand_timeout = 0;
3067
3068   return FALSE;
3069 }
3070
3071 static void
3072 remove_auto_expand_timeout (GtkTreeView *tree_view)
3073 {
3074   if (tree_view->priv->auto_expand_timeout != 0)
3075     {
3076       g_source_remove (tree_view->priv->auto_expand_timeout);
3077       tree_view->priv->auto_expand_timeout = 0;
3078     }
3079 }
3080
3081 static void
3082 do_prelight (GtkTreeView *tree_view,
3083              GtkRBTree   *tree,
3084              GtkRBNode   *node,
3085              /* these are in bin_window coords */
3086              gint         x,
3087              gint         y)
3088 {
3089   if (tree_view->priv->prelight_tree == tree &&
3090       tree_view->priv->prelight_node == node)
3091     {
3092       /*  We are still on the same node,
3093           but we might need to take care of the arrow  */
3094
3095       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3096         {
3097           gboolean over_arrow;
3098           gboolean flag_set;
3099
3100           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3101           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3102                                              GTK_TREE_VIEW_ARROW_PRELIT);
3103
3104           if (over_arrow != flag_set)
3105             {
3106               if (over_arrow)
3107                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3108                                         GTK_TREE_VIEW_ARROW_PRELIT);
3109               else
3110                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3111                                           GTK_TREE_VIEW_ARROW_PRELIT);
3112
3113               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3114             }
3115         }
3116
3117       return;
3118     }
3119
3120   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3121     {
3122       /*  Unprelight the old node and arrow  */
3123
3124       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3125                              GTK_RBNODE_IS_PRELIT);
3126
3127       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3128           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3129         {
3130           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3131
3132           gtk_tree_view_draw_arrow (tree_view,
3133                                     tree_view->priv->prelight_tree,
3134                                     tree_view->priv->prelight_node,
3135                                     x,
3136                                     y);
3137         }
3138
3139       _gtk_tree_view_queue_draw_node (tree_view,
3140                                       tree_view->priv->prelight_tree,
3141                                       tree_view->priv->prelight_node,
3142                                       NULL);
3143     }
3144
3145
3146   if (tree_view->priv->hover_expand)
3147     remove_auto_expand_timeout (tree_view);
3148
3149   /*  Set the new prelight values  */
3150   tree_view->priv->prelight_node = node;
3151   tree_view->priv->prelight_tree = tree;
3152
3153   if (!node || !tree)
3154     return;
3155
3156   /*  Prelight the new node and arrow  */
3157
3158   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3159       && coords_are_over_arrow (tree_view, tree, node, x, y))
3160     {
3161       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3162
3163       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3164     }
3165
3166   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3167
3168   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3169
3170   if (tree_view->priv->hover_expand)
3171     {
3172       tree_view->priv->auto_expand_timeout =
3173         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3174     }
3175 }
3176
3177 static void
3178 prelight_or_select (GtkTreeView *tree_view,
3179                     GtkRBTree   *tree,
3180                     GtkRBNode   *node,
3181                     /* these are in bin_window coords */
3182                     gint         x,
3183                     gint         y)
3184 {
3185   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3186
3187   if (tree_view->priv->hover_selection &&
3188       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3189       !(tree_view->priv->edited_column &&
3190         tree_view->priv->edited_column->editable_widget))
3191     {
3192       if (node)
3193         {
3194           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3195             {
3196               GtkTreePath *path;
3197
3198               path = _gtk_tree_view_find_path (tree_view, tree, node);
3199               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3200               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3201                 {
3202                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3203                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3204                 }
3205               gtk_tree_path_free (path);
3206             }
3207         }
3208
3209       else if (mode == GTK_SELECTION_SINGLE)
3210         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3211     }
3212
3213     do_prelight (tree_view, tree, node, x, y);
3214 }
3215
3216 static void
3217 ensure_unprelighted (GtkTreeView *tree_view)
3218 {
3219   do_prelight (tree_view,
3220                NULL, NULL,
3221                -1000, -1000); /* coords not possibly over an arrow */
3222
3223   g_assert (tree_view->priv->prelight_node == NULL);
3224 }
3225
3226
3227
3228
3229 /* Our motion arrow is either a box (in the case of the original spot)
3230  * or an arrow.  It is expander_size wide.
3231  */
3232 /*
3233  * 11111111111111
3234  * 01111111111110
3235  * 00111111111100
3236  * 00011111111000
3237  * 00001111110000
3238  * 00000111100000
3239  * 00000111100000
3240  * 00000111100000
3241  * ~ ~ ~ ~ ~ ~ ~
3242  * 00000111100000
3243  * 00000111100000
3244  * 00000111100000
3245  * 00001111110000
3246  * 00011111111000
3247  * 00111111111100
3248  * 01111111111110
3249  * 11111111111111
3250  */
3251
3252 static void
3253 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3254 {
3255   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3256   GtkWidget *widget = GTK_WIDGET (tree_view);
3257   GdkBitmap *mask = NULL;
3258   gint x;
3259   gint y;
3260   gint width;
3261   gint height;
3262   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3263   GdkWindowAttr attributes;
3264   guint attributes_mask;
3265
3266   if (!reorder ||
3267       reorder->left_column == tree_view->priv->drag_column ||
3268       reorder->right_column == tree_view->priv->drag_column)
3269     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3270   else if (reorder->left_column || reorder->right_column)
3271     {
3272       GdkRectangle visible_rect;
3273       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3274       if (reorder->left_column)
3275         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3276       else
3277         x = reorder->right_column->button->allocation.x;
3278
3279       if (x < visible_rect.x)
3280         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3281       else if (x > visible_rect.x + visible_rect.width)
3282         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3283       else
3284         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3285     }
3286
3287   /* We want to draw the rectangle over the initial location. */
3288   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3289     {
3290       GdkGC *gc;
3291       GdkColor col;
3292
3293       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3294         {
3295           if (tree_view->priv->drag_highlight_window)
3296             {
3297               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3298                                         NULL);
3299               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3300             }
3301
3302           attributes.window_type = GDK_WINDOW_CHILD;
3303           attributes.wclass = GDK_INPUT_OUTPUT;
3304           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3305           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3306           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3307           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3308           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3309           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3310
3311           width = tree_view->priv->drag_column->button->allocation.width;
3312           height = tree_view->priv->drag_column->button->allocation.height;
3313           gdk_window_move_resize (tree_view->priv->drag_highlight_window,
3314                                   tree_view->priv->drag_column_x, 0, width, height);
3315
3316           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3317           gc = gdk_gc_new (mask);
3318           col.pixel = 1;
3319           gdk_gc_set_foreground (gc, &col);
3320           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3321           col.pixel = 0;
3322           gdk_gc_set_foreground(gc, &col);
3323           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3324           g_object_unref (gc);
3325
3326           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3327                                          mask, 0, 0);
3328           if (mask) g_object_unref (mask);
3329           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3330         }
3331     }
3332   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3333     {
3334       gint i, j = 1;
3335       GdkGC *gc;
3336       GdkColor col;
3337
3338       width = tree_view->priv->expander_size;
3339
3340       /* Get x, y, width, height of arrow */
3341       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3342       if (reorder->left_column)
3343         {
3344           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3345           height = reorder->left_column->button->allocation.height;
3346         }
3347       else
3348         {
3349           x += reorder->right_column->button->allocation.x - width/2;
3350           height = reorder->right_column->button->allocation.height;
3351         }
3352       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3353       height += tree_view->priv->expander_size;
3354
3355       /* Create the new window */
3356       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3357         {
3358           if (tree_view->priv->drag_highlight_window)
3359             {
3360               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3361                                         NULL);
3362               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3363             }
3364
3365           attributes.window_type = GDK_WINDOW_TEMP;
3366           attributes.wclass = GDK_INPUT_OUTPUT;
3367           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3368           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3369           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3370           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3371           attributes.width = width;
3372           attributes.height = height;
3373           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3374                                                                    &attributes, attributes_mask);
3375           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3376
3377           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3378           gc = gdk_gc_new (mask);
3379           col.pixel = 1;
3380           gdk_gc_set_foreground (gc, &col);
3381           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3382
3383           /* Draw the 2 arrows as per above */
3384           col.pixel = 0;
3385           gdk_gc_set_foreground (gc, &col);
3386           for (i = 0; i < width; i ++)
3387             {
3388               if (i == (width/2 - 1))
3389                 continue;
3390               gdk_draw_line (mask, gc, i, j, i, height - j);
3391               if (i < (width/2 - 1))
3392                 j++;
3393               else
3394                 j--;
3395             }
3396           g_object_unref (gc);
3397           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3398                                          mask, 0, 0);
3399           if (mask) g_object_unref (mask);
3400         }
3401
3402       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3403       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3404     }
3405   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3406            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3407     {
3408       gint i, j = 1;
3409       GdkGC *gc;
3410       GdkColor col;
3411
3412       width = tree_view->priv->expander_size;
3413
3414       /* Get x, y, width, height of arrow */
3415       width = width/2; /* remember, the arrow only takes half the available width */
3416       gdk_window_get_origin (widget->window, &x, &y);
3417       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3418         x += widget->allocation.width - width;
3419
3420       if (reorder->left_column)
3421         height = reorder->left_column->button->allocation.height;
3422       else
3423         height = reorder->right_column->button->allocation.height;
3424
3425       y -= tree_view->priv->expander_size;
3426       height += 2*tree_view->priv->expander_size;
3427
3428       /* Create the new window */
3429       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3430           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3431         {
3432           if (tree_view->priv->drag_highlight_window)
3433             {
3434               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3435                                         NULL);
3436               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3437             }
3438
3439           attributes.window_type = GDK_WINDOW_TEMP;
3440           attributes.wclass = GDK_INPUT_OUTPUT;
3441           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3442           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3443           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3444           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3445           attributes.width = width;
3446           attributes.height = height;
3447           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3448           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3449
3450           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3451           gc = gdk_gc_new (mask);
3452           col.pixel = 1;
3453           gdk_gc_set_foreground (gc, &col);
3454           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3455
3456           /* Draw the 2 arrows as per above */
3457           col.pixel = 0;
3458           gdk_gc_set_foreground (gc, &col);
3459           j = tree_view->priv->expander_size;
3460           for (i = 0; i < width; i ++)
3461             {
3462               gint k;
3463               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3464                 k = width - i - 1;
3465               else
3466                 k = i;
3467               gdk_draw_line (mask, gc, k, j, k, height - j);
3468               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3469               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3470               j--;
3471             }
3472           g_object_unref (gc);
3473           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3474                                          mask, 0, 0);
3475           if (mask) g_object_unref (mask);
3476         }
3477
3478       tree_view->priv->drag_column_window_state = arrow_type;
3479       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3480    }
3481   else
3482     {
3483       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3484       gdk_window_hide (tree_view->priv->drag_highlight_window);
3485       return;
3486     }
3487
3488   gdk_window_show (tree_view->priv->drag_highlight_window);
3489   gdk_window_raise (tree_view->priv->drag_highlight_window);
3490 }
3491
3492 static gboolean
3493 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3494                                     GdkEventMotion *event)
3495 {
3496   gint x;
3497   gint new_width;
3498   GtkTreeViewColumn *column;
3499   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3500
3501   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3502
3503   if (event->is_hint || event->window != widget->window)
3504     gtk_widget_get_pointer (widget, &x, NULL);
3505   else
3506     x = event->x;
3507
3508   if (tree_view->priv->hadjustment)
3509     x += tree_view->priv->hadjustment->value;
3510
3511   new_width = gtk_tree_view_new_column_width (tree_view,
3512                                               tree_view->priv->drag_pos, &x);
3513   if (x != tree_view->priv->x_drag &&
3514       (new_width != column->fixed_width))
3515     {
3516       column->use_resized_width = TRUE;
3517       column->resized_width = new_width;
3518       gtk_widget_queue_resize (widget);
3519     }
3520
3521   return FALSE;
3522 }
3523
3524
3525 static void
3526 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3527 {
3528   GtkTreeViewColumnReorder *reorder = NULL;
3529   GList *list;
3530   gint mouse_x;
3531
3532   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3533   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3534     {
3535       reorder = (GtkTreeViewColumnReorder *) list->data;
3536       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3537         break;
3538       reorder = NULL;
3539     }
3540
3541   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3542       return;*/
3543
3544   tree_view->priv->cur_reorder = reorder;
3545   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3546 }
3547
3548 static void
3549 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3550 {
3551   GdkRectangle visible_rect;
3552   gint y;
3553   gint offset;
3554   gfloat value;
3555
3556   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3557   y += tree_view->priv->dy;
3558
3559   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3560
3561   /* see if we are near the edge. */
3562   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3563   if (offset > 0)
3564     {
3565       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3566       if (offset < 0)
3567         return;
3568     }
3569
3570   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3571                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3572   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3573 }
3574
3575 static gboolean
3576 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3577 {
3578   GdkRectangle visible_rect;
3579   gint x;
3580   gint offset;
3581   gfloat value;
3582
3583   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3584
3585   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3586
3587   /* See if we are near the edge. */
3588   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3589   if (offset > 0)
3590     {
3591       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3592       if (offset < 0)
3593         return TRUE;
3594     }
3595   offset = offset/3;
3596
3597   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3598                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3599   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3600
3601   return TRUE;
3602
3603 }
3604
3605 static gboolean
3606 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3607                                   GdkEventMotion *event)
3608 {
3609   GtkTreeView *tree_view = (GtkTreeView *) widget;
3610   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3611   gint x, y;
3612
3613   /* Sanity Check */
3614   if ((column == NULL) ||
3615       (event->window != tree_view->priv->drag_window))
3616     return FALSE;
3617
3618   /* Handle moving the header */
3619   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3620   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3621              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3622   gdk_window_move (tree_view->priv->drag_window, x, y);
3623
3624   /* autoscroll, if needed */
3625   gtk_tree_view_horizontal_autoscroll (tree_view);
3626   /* Update the current reorder position and arrow; */
3627   gtk_tree_view_update_current_reorder (tree_view);
3628
3629   return TRUE;
3630 }
3631
3632 static void
3633 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3634 {
3635   remove_scroll_timeout (tree_view);
3636   gtk_grab_remove (GTK_WIDGET (tree_view));
3637
3638   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3639
3640   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3641     {
3642       GtkTreePath *tmp_path;
3643
3644       /* The anchor path should be set to the start path */
3645       tmp_path = _gtk_tree_view_find_path (tree_view,
3646                                            tree_view->priv->rubber_band_start_tree,
3647                                            tree_view->priv->rubber_band_start_node);
3648
3649       if (tree_view->priv->anchor)
3650         gtk_tree_row_reference_free (tree_view->priv->anchor);
3651
3652       tree_view->priv->anchor =
3653         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3654                                           tree_view->priv->model,
3655                                           tmp_path);
3656
3657       gtk_tree_path_free (tmp_path);
3658
3659       /* ... and the cursor to the end path */
3660       tmp_path = _gtk_tree_view_find_path (tree_view,
3661                                            tree_view->priv->rubber_band_end_tree,
3662                                            tree_view->priv->rubber_band_end_node);
3663       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3664       gtk_tree_path_free (tmp_path);
3665
3666       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3667     }
3668
3669   /* Clear status variables */
3670   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3671   tree_view->priv->rubber_band_shift = 0;
3672   tree_view->priv->rubber_band_ctrl = 0;
3673
3674   tree_view->priv->rubber_band_start_node = NULL;
3675   tree_view->priv->rubber_band_start_tree = NULL;
3676   tree_view->priv->rubber_band_end_node = NULL;
3677   tree_view->priv->rubber_band_end_tree = NULL;
3678 }
3679
3680 static void
3681 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3682                                                  GtkRBTree   *start_tree,
3683                                                  GtkRBNode   *start_node,
3684                                                  GtkRBTree   *end_tree,
3685                                                  GtkRBNode   *end_node,
3686                                                  gboolean     select,
3687                                                  gboolean     skip_start,
3688                                                  gboolean     skip_end)
3689 {
3690   if (start_node == end_node)
3691     return;
3692
3693   /* We skip the first node and jump inside the loop */
3694   if (skip_start)
3695     goto skip_first;
3696
3697   do
3698     {
3699       if (select)
3700         {
3701           if (tree_view->priv->rubber_band_shift)
3702             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3703           else if (tree_view->priv->rubber_band_ctrl)
3704             {
3705               /* Toggle the selection state */
3706               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3707                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3708               else
3709                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3710             }
3711           else
3712             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3713         }
3714       else
3715         {
3716           /* Mirror the above */
3717           if (tree_view->priv->rubber_band_shift)
3718             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3719           else if (tree_view->priv->rubber_band_ctrl)
3720             {
3721               /* Toggle the selection state */
3722               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3723                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3724               else
3725                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3726             }
3727           else
3728             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3729         }
3730
3731       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3732
3733       if (start_node == end_node)
3734         break;
3735
3736 skip_first:
3737
3738       if (start_node->children)
3739         {
3740           start_tree = start_node->children;
3741           start_node = start_tree->root;
3742           while (start_node->left != start_tree->nil)
3743             start_node = start_node->left;
3744         }
3745       else
3746         {
3747           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3748
3749           if (!start_tree)
3750             /* Ran out of tree */
3751             break;
3752         }
3753
3754       if (skip_end && start_node == end_node)
3755         break;
3756     }
3757   while (TRUE);
3758 }
3759
3760 static void
3761 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3762 {
3763   GtkRBTree *start_tree, *end_tree;
3764   GtkRBNode *start_node, *end_node;
3765
3766   _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);
3767   _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);
3768
3769   /* Handle the start area first */
3770   if (!tree_view->priv->rubber_band_start_node)
3771     {
3772       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3773                                                        start_tree,
3774                                                        start_node,
3775                                                        end_tree,
3776                                                        end_node,
3777                                                        TRUE,
3778                                                        FALSE,
3779                                                        FALSE);
3780     }
3781   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3782            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3783     {
3784       /* New node is above the old one; selection became bigger */
3785       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3786                                                        start_tree,
3787                                                        start_node,
3788                                                        tree_view->priv->rubber_band_start_tree,
3789                                                        tree_view->priv->rubber_band_start_node,
3790                                                        TRUE,
3791                                                        FALSE,
3792                                                        TRUE);
3793     }
3794   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3795            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3796     {
3797       /* New node is below the old one; selection became smaller */
3798       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3799                                                        tree_view->priv->rubber_band_start_tree,
3800                                                        tree_view->priv->rubber_band_start_node,
3801                                                        start_tree,
3802                                                        start_node,
3803                                                        FALSE,
3804                                                        FALSE,
3805                                                        TRUE);
3806     }
3807
3808   tree_view->priv->rubber_band_start_tree = start_tree;
3809   tree_view->priv->rubber_band_start_node = start_node;
3810
3811   /* Next, handle the end area */
3812   if (!tree_view->priv->rubber_band_end_node)
3813     {
3814       /* In the event this happens, start_node was also NULL; this case is
3815        * handled above.
3816        */
3817     }
3818   else if (!end_node)
3819     {
3820       /* Find the last node in the tree */
3821       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3822                                &end_tree, &end_node);
3823
3824       /* Selection reached end of the tree */
3825       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3826                                                        tree_view->priv->rubber_band_end_tree,
3827                                                        tree_view->priv->rubber_band_end_node,
3828                                                        end_tree,
3829                                                        end_node,
3830                                                        TRUE,
3831                                                        TRUE,
3832                                                        FALSE);
3833     }
3834   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3835            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3836     {
3837       /* New node is below the old one; selection became bigger */
3838       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3839                                                        tree_view->priv->rubber_band_end_tree,
3840                                                        tree_view->priv->rubber_band_end_node,
3841                                                        end_tree,
3842                                                        end_node,
3843                                                        TRUE,
3844                                                        TRUE,
3845                                                        FALSE);
3846     }
3847   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3848            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3849     {
3850       /* New node is above the old one; selection became smaller */
3851       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3852                                                        end_tree,
3853                                                        end_node,
3854                                                        tree_view->priv->rubber_band_end_tree,
3855                                                        tree_view->priv->rubber_band_end_node,
3856                                                        FALSE,
3857                                                        TRUE,
3858                                                        FALSE);
3859     }
3860
3861   tree_view->priv->rubber_band_end_tree = end_tree;
3862   tree_view->priv->rubber_band_end_node = end_node;
3863 }
3864
3865 static void
3866 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3867 {
3868   gint x, y;
3869   GdkRectangle old_area;
3870   GdkRectangle new_area;
3871   GdkRectangle common;
3872   GdkRegion *invalid_region;
3873
3874   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3875   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3876   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3877   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3878
3879   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3880
3881   x = MAX (x, 0);
3882   y = MAX (y, 0) + tree_view->priv->dy;
3883
3884   new_area.x = MIN (tree_view->priv->press_start_x, x);
3885   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3886   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3887   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3888
3889   invalid_region = gdk_region_rectangle (&old_area);
3890   gdk_region_union_with_rect (invalid_region, &new_area);
3891
3892   gdk_rectangle_intersect (&old_area, &new_area, &common);
3893   if (common.width > 2 && common.height > 2)
3894     {
3895       GdkRegion *common_region;
3896
3897       /* make sure the border is invalidated */
3898       common.x += 1;
3899       common.y += 1;
3900       common.width -= 2;
3901       common.height -= 2;
3902
3903       common_region = gdk_region_rectangle (&common);
3904
3905       gdk_region_subtract (invalid_region, common_region);
3906       gdk_region_destroy (common_region);
3907     }
3908
3909   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3910
3911   gdk_region_destroy (invalid_region);
3912
3913   tree_view->priv->rubber_band_x = x;
3914   tree_view->priv->rubber_band_y = y;
3915
3916   gtk_tree_view_update_rubber_band_selection (tree_view);
3917 }
3918
3919 static void
3920 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
3921                                 GdkRectangle *area)
3922 {
3923   cairo_t *cr;
3924   GdkRectangle rect;
3925   GdkRectangle rubber_rect;
3926
3927   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3928   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3929   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
3930   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
3931
3932   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
3933     return;
3934
3935   cr = gdk_cairo_create (tree_view->priv->bin_window);
3936   cairo_set_line_width (cr, 1.0);
3937
3938   cairo_set_source_rgba (cr,
3939                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3940                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3941                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
3942                          .25);
3943
3944   gdk_cairo_rectangle (cr, &rect);
3945   cairo_clip (cr);
3946   cairo_paint (cr);
3947
3948   cairo_set_source_rgb (cr,
3949                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3950                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3951                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
3952
3953   cairo_rectangle (cr,
3954                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
3955                    rubber_rect.width - 1, rubber_rect.height - 1);
3956   cairo_stroke (cr);
3957
3958   cairo_destroy (cr);
3959 }
3960
3961 static gboolean
3962 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
3963                                  GdkEventMotion *event)
3964 {
3965   GtkTreeView *tree_view;
3966   GtkRBTree *tree;
3967   GtkRBNode *node;
3968   gint new_y;
3969
3970   tree_view = (GtkTreeView *) widget;
3971
3972   if (tree_view->priv->tree == NULL)
3973     return FALSE;
3974
3975   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
3976     {
3977       gtk_grab_add (GTK_WIDGET (tree_view));
3978       gtk_tree_view_update_rubber_band (tree_view);
3979
3980       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
3981     }
3982   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3983     {
3984       gtk_tree_view_update_rubber_band (tree_view);
3985
3986       add_scroll_timeout (tree_view);
3987     }
3988
3989   /* only check for an initiated drag when a button is pressed */
3990   if (tree_view->priv->pressed_button >= 0
3991       && !tree_view->priv->rubber_band_status)
3992     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
3993
3994   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
3995   if (new_y < 0)
3996     new_y = 0;
3997
3998   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
3999
4000   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4001   if ((tree_view->priv->button_pressed_node != NULL) &&
4002       (tree_view->priv->button_pressed_node != node))
4003     node = NULL;
4004
4005   prelight_or_select (tree_view, tree, node, event->x, event->y);
4006
4007   return TRUE;
4008 }
4009
4010 static gboolean
4011 gtk_tree_view_motion (GtkWidget      *widget,
4012                       GdkEventMotion *event)
4013 {
4014   GtkTreeView *tree_view;
4015
4016   tree_view = (GtkTreeView *) widget;
4017
4018   /* Resizing a column */
4019   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4020     return gtk_tree_view_motion_resize_column (widget, event);
4021
4022   /* Drag column */
4023   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4024     return gtk_tree_view_motion_drag_column (widget, event);
4025
4026   /* Sanity check it */
4027   if (event->window == tree_view->priv->bin_window)
4028     return gtk_tree_view_motion_bin_window (widget, event);
4029
4030   return FALSE;
4031 }
4032
4033 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4034  * the tree is empty.
4035  */
4036 static void
4037 invalidate_empty_focus (GtkTreeView *tree_view)
4038 {
4039   GdkRectangle area;
4040
4041   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4042     return;
4043
4044   area.x = 0;
4045   area.y = 0;
4046   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4047   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4048 }
4049
4050 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4051  * is empty.
4052  */
4053 static void
4054 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4055 {
4056   gint w, h;
4057
4058   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4059     return;
4060
4061   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4062
4063   w -= 2;
4064   h -= 2;
4065
4066   if (w > 0 && h > 0)
4067     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4068                      tree_view->priv->bin_window,
4069                      GTK_WIDGET_STATE (tree_view),
4070                      clip_area,
4071                      GTK_WIDGET (tree_view),
4072                      NULL,
4073                      1, 1, w, h);
4074 }
4075
4076 static void
4077 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4078                                GdkEventExpose *event,
4079                                gint            n_visible_columns)
4080 {
4081   GList *list = tree_view->priv->columns;
4082   gint i = 0;
4083   gint current_x = 0;
4084
4085   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4086       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4087     return;
4088
4089   /* Only draw the lines for visible rows and columns */
4090   for (list = tree_view->priv->columns; list; list = list->next, i++)
4091     {
4092       GtkTreeViewColumn *column = list->data;
4093
4094       /* We don't want a line for the last column */
4095       if (i == n_visible_columns - 1)
4096         break;
4097
4098       if (! column->visible)
4099         continue;
4100
4101       current_x += column->width;
4102
4103       gdk_draw_line (event->window,
4104                      tree_view->priv->grid_line_gc,
4105                      current_x - 1, 0,
4106                      current_x - 1, tree_view->priv->height);
4107     }
4108 }
4109
4110 /* Warning: Very scary function.
4111  * Modify at your own risk
4112  *
4113  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4114  * FIXME: It's not...
4115  */
4116 static gboolean
4117 gtk_tree_view_bin_expose (GtkWidget      *widget,
4118                           GdkEventExpose *event)
4119 {
4120   GtkTreeView *tree_view;
4121   GtkTreePath *path;
4122   GtkRBTree *tree;
4123   GList *list;
4124   GtkRBNode *node;
4125   GtkRBNode *cursor = NULL;
4126   GtkRBTree *cursor_tree = NULL;
4127   GtkRBNode *drag_highlight = NULL;
4128   GtkRBTree *drag_highlight_tree = NULL;
4129   GtkTreeIter iter;
4130   gint new_y;
4131   gint y_offset, cell_offset;
4132   gint max_height;
4133   gint depth;
4134   GdkRectangle background_area;
4135   GdkRectangle cell_area;
4136   guint flags;
4137   gint highlight_x;
4138   gint expander_cell_width;
4139   gint bin_window_width;
4140   gint bin_window_height;
4141   GtkTreePath *cursor_path;
4142   GtkTreePath *drag_dest_path;
4143   GList *first_column, *last_column;
4144   gint vertical_separator;
4145   gint horizontal_separator;
4146   gint focus_line_width;
4147   gboolean allow_rules;
4148   gboolean has_special_cell;
4149   gboolean rtl;
4150   gint n_visible_columns;
4151   gint pointer_x, pointer_y;
4152   gint grid_line_width;
4153   gboolean got_pointer = FALSE;
4154   gboolean row_ending_details;
4155   gboolean draw_vgrid_lines, draw_hgrid_lines;
4156
4157   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
4158
4159   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4160
4161   tree_view = GTK_TREE_VIEW (widget);
4162
4163   gtk_widget_style_get (widget,
4164                         "horizontal-separator", &horizontal_separator,
4165                         "vertical-separator", &vertical_separator,
4166                         "allow-rules", &allow_rules,
4167                         "focus-line-width", &focus_line_width,
4168                         "row-ending-details", &row_ending_details,
4169                         NULL);
4170
4171   if (tree_view->priv->tree == NULL)
4172     {
4173       draw_empty_focus (tree_view, &event->area);
4174       return TRUE;
4175     }
4176
4177   /* clip event->area to the visible area */
4178   if (event->area.height < 0)
4179     return TRUE;
4180
4181   validate_visible_area (tree_view);
4182
4183   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4184
4185   if (new_y < 0)
4186     new_y = 0;
4187   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4188   gdk_drawable_get_size (tree_view->priv->bin_window,
4189                          &bin_window_width, &bin_window_height);
4190
4191   if (tree_view->priv->height < bin_window_height)
4192     {
4193       gtk_paint_flat_box (widget->style,
4194                           event->window,
4195                           widget->state,
4196                           GTK_SHADOW_NONE,
4197                           &event->area,
4198                           widget,
4199                           "cell_even",
4200                           0, tree_view->priv->height,
4201                           bin_window_width,
4202                           bin_window_height - tree_view->priv->height);
4203     }
4204
4205   if (node == NULL)
4206     return TRUE;
4207
4208   /* find the path for the node */
4209   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4210                                    tree,
4211                                    node);
4212   gtk_tree_model_get_iter (tree_view->priv->model,
4213                            &iter,
4214                            path);
4215   depth = gtk_tree_path_get_depth (path);
4216   gtk_tree_path_free (path);
4217
4218   cursor_path = NULL;
4219   drag_dest_path = NULL;
4220
4221   if (tree_view->priv->cursor)
4222     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4223
4224   if (cursor_path)
4225     _gtk_tree_view_find_node (tree_view, cursor_path,
4226                               &cursor_tree, &cursor);
4227
4228   if (tree_view->priv->drag_dest_row)
4229     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4230
4231   if (drag_dest_path)
4232     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4233                               &drag_highlight_tree, &drag_highlight);
4234
4235   draw_vgrid_lines =
4236     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4237     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4238   draw_hgrid_lines =
4239     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4240     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4241
4242   if (draw_vgrid_lines || draw_hgrid_lines)
4243     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4244
4245   n_visible_columns = 0;
4246   for (list = tree_view->priv->columns; list; list = list->next)
4247     {
4248       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4249         continue;
4250       n_visible_columns ++;
4251     }
4252
4253   /* Find the last column */
4254   for (last_column = g_list_last (tree_view->priv->columns);
4255        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4256        last_column = last_column->prev)
4257     ;
4258
4259   /* and the first */
4260   for (first_column = g_list_first (tree_view->priv->columns);
4261        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4262        first_column = first_column->next)
4263     ;
4264
4265   /* Actually process the expose event.  To do this, we want to
4266    * start at the first node of the event, and walk the tree in
4267    * order, drawing each successive node.
4268    */
4269
4270   do
4271     {
4272       gboolean parity;
4273       gboolean is_separator = FALSE;
4274       gboolean is_first = FALSE;
4275       gboolean is_last = FALSE;
4276
4277       if (tree_view->priv->row_separator_func)
4278         {
4279           is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
4280                                                                   &iter,
4281                                                                   tree_view->priv->row_separator_data);
4282         }
4283
4284       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4285
4286       cell_offset = 0;
4287       highlight_x = 0; /* should match x coord of first cell */
4288       expander_cell_width = 0;
4289
4290       background_area.y = y_offset + event->area.y;
4291       background_area.height = max_height;
4292
4293       flags = 0;
4294
4295       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4296         flags |= GTK_CELL_RENDERER_PRELIT;
4297
4298       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4299         flags |= GTK_CELL_RENDERER_SELECTED;
4300
4301       parity = _gtk_rbtree_node_find_parity (tree, node);
4302
4303       /* we *need* to set cell data on all cells before the call
4304        * to _has_special_cell, else _has_special_cell() does not
4305        * return a correct value.
4306        */
4307       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4308            list;
4309            list = (rtl ? list->prev : list->next))
4310         {
4311           GtkTreeViewColumn *column = list->data;
4312           gtk_tree_view_column_cell_set_cell_data (column,
4313                                                    tree_view->priv->model,
4314                                                    &iter,
4315                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4316                                                    node->children?TRUE:FALSE);
4317         }
4318
4319       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4320
4321       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4322            list;
4323            list = (rtl ? list->prev : list->next))
4324         {
4325           GtkTreeViewColumn *column = list->data;
4326           const gchar *detail = NULL;
4327           GtkStateType state;
4328
4329           if (!column->visible)
4330             continue;
4331
4332           if (cell_offset > event->area.x + event->area.width ||
4333               cell_offset + column->width < event->area.x)
4334             {
4335               cell_offset += column->width;
4336               continue;
4337             }
4338
4339           if (column->show_sort_indicator)
4340             flags |= GTK_CELL_RENDERER_SORTED;
4341           else
4342             flags &= ~GTK_CELL_RENDERER_SORTED;
4343
4344           if (cursor == node)
4345             flags |= GTK_CELL_RENDERER_FOCUSED;
4346           else
4347             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4348
4349           background_area.x = cell_offset;
4350           background_area.width = column->width;
4351
4352           cell_area = background_area;
4353           cell_area.y += vertical_separator / 2;
4354           cell_area.x += horizontal_separator / 2;
4355           cell_area.height -= vertical_separator;
4356           cell_area.width -= horizontal_separator;
4357
4358           if (draw_vgrid_lines)
4359             {
4360               if (list == first_column)
4361                 {
4362                   cell_area.width -= grid_line_width / 2;
4363                 }
4364               else if (list == last_column)
4365                 {
4366                   cell_area.x += grid_line_width / 2;
4367                   cell_area.width -= grid_line_width / 2;
4368                 }
4369               else
4370                 {
4371                   cell_area.x += grid_line_width / 2;
4372                   cell_area.width -= grid_line_width;
4373                 }
4374             }
4375
4376           if (draw_hgrid_lines)
4377             {
4378               cell_area.y += grid_line_width / 2;
4379               cell_area.height -= grid_line_width;
4380             }
4381
4382           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4383             {
4384               cell_offset += column->width;
4385               continue;
4386             }
4387
4388           gtk_tree_view_column_cell_set_cell_data (column,
4389                                                    tree_view->priv->model,
4390                                                    &iter,
4391                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4392                                                    node->children?TRUE:FALSE);
4393
4394           /* Select the detail for drawing the cell.  relevant
4395            * factors are parity, sortedness, and whether to
4396            * display rules.
4397            */
4398           if (allow_rules && tree_view->priv->has_rules)
4399             {
4400               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4401                   n_visible_columns >= 3)
4402                 {
4403                   if (parity)
4404                     detail = "cell_odd_ruled_sorted";
4405                   else
4406                     detail = "cell_even_ruled_sorted";
4407                 }
4408               else
4409                 {
4410                   if (parity)
4411                     detail = "cell_odd_ruled";
4412                   else
4413                     detail = "cell_even_ruled";
4414                 }
4415             }
4416           else
4417             {
4418               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4419                   n_visible_columns >= 3)
4420                 {
4421                   if (parity)
4422                     detail = "cell_odd_sorted";
4423                   else
4424                     detail = "cell_even_sorted";
4425                 }
4426               else
4427                 {
4428                   if (parity)
4429                     detail = "cell_odd";
4430                   else
4431                     detail = "cell_even";
4432                 }
4433             }
4434
4435           g_assert (detail);
4436
4437           if (widget->state == GTK_STATE_INSENSITIVE)
4438             state = GTK_STATE_INSENSITIVE;
4439           else if (flags & GTK_CELL_RENDERER_SELECTED)
4440             state = GTK_STATE_SELECTED;
4441           else
4442             state = GTK_STATE_NORMAL;
4443
4444           /* Draw background */
4445           if (row_ending_details)
4446             {
4447               char new_detail[128];
4448
4449               is_first = (rtl ? !list->next : !list->prev);
4450               is_last = (rtl ? !list->prev : !list->next);
4451
4452               /* (I don't like the snprintfs either, but couldn't find a
4453                * less messy way).
4454                */
4455               if (is_first && is_last)
4456                 g_snprintf (new_detail, 127, "%s", detail);
4457               else if (is_first)
4458                 g_snprintf (new_detail, 127, "%s_start", detail);
4459               else if (is_last)
4460                 g_snprintf (new_detail, 127, "%s_end", detail);
4461               else
4462                 g_snprintf (new_detail, 128, "%s_middle", detail);
4463
4464               gtk_paint_flat_box (widget->style,
4465                                   event->window,
4466                                   state,
4467                                   GTK_SHADOW_NONE,
4468                                   &event->area,
4469                                   widget,
4470                                   new_detail,
4471                                   background_area.x,
4472                                   background_area.y,
4473                                   background_area.width,
4474                                   background_area.height);
4475             }
4476           else
4477             {
4478               gtk_paint_flat_box (widget->style,
4479                                   event->window,
4480                                   state,
4481                                   GTK_SHADOW_NONE,
4482                                   &event->area,
4483                                   widget,
4484                                   detail,
4485                                   background_area.x,
4486                                   background_area.y,
4487                                   background_area.width,
4488                                   background_area.height);
4489             }
4490
4491           if (draw_hgrid_lines)
4492             {
4493               if (background_area.y > 0)
4494                 gdk_draw_line (event->window,
4495                                tree_view->priv->grid_line_gc,
4496                                background_area.x, background_area.y,
4497                                background_area.x + background_area.width,
4498                                background_area.y);
4499
4500               if (y_offset + max_height >= event->area.height)
4501                 gdk_draw_line (event->window,
4502                                tree_view->priv->grid_line_gc,
4503                                background_area.x, background_area.y + max_height,
4504                                background_area.x + background_area.width,
4505                                background_area.y + max_height);
4506             }
4507
4508           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4509               tree_view->priv->tree_lines_enabled)
4510             {
4511               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4512                   && depth > 1)
4513                 {
4514                   gdk_draw_line (event->window,
4515                                  tree_view->priv->tree_line_gc,
4516                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4517                                  background_area.y + background_area.height / 2,
4518                                  background_area.x + tree_view->priv->expander_size * (depth - 1.1),
4519                                  background_area.y + background_area.height / 2);
4520                 }
4521               else if (depth > 1)
4522                 {
4523                   gdk_draw_line (event->window,
4524                                  tree_view->priv->tree_line_gc,
4525                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4526                                  background_area.y + background_area.height / 2,
4527                                  background_area.x + tree_view->priv->expander_size * (depth - 0.5),
4528                                  background_area.y + background_area.height / 2);
4529                 }
4530
4531               if (depth > 1)
4532                 {
4533                   gint i;
4534                   GtkRBNode *tmp_node;
4535                   GtkRBTree *tmp_tree;
4536
4537                   if (!_gtk_rbtree_next (tree, node))
4538                     gdk_draw_line (event->window,
4539                                    tree_view->priv->tree_line_gc,
4540                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4541                                    background_area.y,
4542                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4543                                    background_area.y + background_area.height / 2);
4544                   else
4545                     gdk_draw_line (event->window,
4546                                    tree_view->priv->tree_line_gc,
4547                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4548                                    background_area.y,
4549                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4550                                    background_area.y + background_area.height);
4551
4552                   tmp_node = tree->parent_node;
4553                   tmp_tree = tree->parent_tree;
4554
4555                   for (i = depth - 2; i > 0; i--)
4556                     {
4557                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4558                         gdk_draw_line (event->window,
4559                                        tree_view->priv->tree_line_gc,
4560                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4561                                        background_area.y,
4562                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4563                                        background_area.y + background_area.height);
4564
4565                       tmp_node = tmp_tree->parent_node;
4566                       tmp_tree = tmp_tree->parent_tree;
4567                     }
4568                 }
4569             }
4570
4571           if (gtk_tree_view_is_expander_column (tree_view, column))
4572             {
4573               if (!rtl)
4574                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4575               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4576
4577               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4578                 {
4579                   if (!rtl)
4580                     cell_area.x += depth * tree_view->priv->expander_size;
4581                   cell_area.width -= depth * tree_view->priv->expander_size;
4582                 }
4583
4584               /* If we have an expander column, the highlight underline
4585                * starts with that column, so that it indicates which
4586                * level of the tree we're dropping at.
4587                */
4588               highlight_x = cell_area.x;
4589               expander_cell_width = cell_area.width;
4590
4591               if (is_separator)
4592                 gtk_paint_hline (widget->style,
4593                                  event->window,
4594                                  state,
4595                                  &cell_area,
4596                                  widget,
4597                                  NULL,
4598                                  cell_area.x,
4599                                  cell_area.x + cell_area.width,
4600                                  cell_area.y + cell_area.height / 2);
4601               else
4602                 _gtk_tree_view_column_cell_render (column,
4603                                                    event->window,
4604                                                    &background_area,
4605                                                    &cell_area,
4606                                                    &event->area,
4607                                                    flags);
4608               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4609                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4610                 {
4611                   if (!got_pointer)
4612                     {
4613                       gdk_window_get_pointer (tree_view->priv->bin_window,
4614                                               &pointer_x, &pointer_y, NULL);
4615                       got_pointer = TRUE;
4616                     }
4617
4618                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4619                                             tree,
4620                                             node,
4621                                             pointer_x, pointer_y);
4622                 }
4623             }
4624           else
4625             {
4626               if (is_separator)
4627                 gtk_paint_hline (widget->style,
4628                                  event->window,
4629                                  state,
4630                                  &cell_area,
4631                                  widget,
4632                                  NULL,
4633                                  cell_area.x,
4634                                  cell_area.x + cell_area.width,
4635                                  cell_area.y + cell_area.height / 2);
4636               else
4637                 _gtk_tree_view_column_cell_render (column,
4638                                                    event->window,
4639                                                    &background_area,
4640                                                    &cell_area,
4641                                                    &event->area,
4642                                                    flags);
4643             }
4644           if (node == cursor && has_special_cell &&
4645               ((column == tree_view->priv->focus_column &&
4646                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4647                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4648                (column == tree_view->priv->edited_column)))
4649             {
4650               _gtk_tree_view_column_cell_draw_focus (column,
4651                                                      event->window,
4652                                                      &background_area,
4653                                                      &cell_area,
4654                                                      &event->area,
4655                                                      flags);
4656             }
4657           cell_offset += column->width;
4658         }
4659
4660       if (node == drag_highlight)
4661         {
4662           /* Draw indicator for the drop
4663            */
4664           gint highlight_y = -1;
4665           GtkRBTree *tree = NULL;
4666           GtkRBNode *node = NULL;
4667           gint width;
4668
4669           switch (tree_view->priv->drag_dest_pos)
4670             {
4671             case GTK_TREE_VIEW_DROP_BEFORE:
4672               highlight_y = background_area.y - 1;
4673               if (highlight_y < 0)
4674                       highlight_y = 0;
4675               break;
4676
4677             case GTK_TREE_VIEW_DROP_AFTER:
4678               highlight_y = background_area.y + background_area.height - 1;
4679               break;
4680
4681             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4682             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4683               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4684
4685               if (tree == NULL)
4686                 break;
4687               gdk_drawable_get_size (tree_view->priv->bin_window,
4688                                      &width, NULL);
4689
4690               if (row_ending_details)
4691                 gtk_paint_focus (widget->style,
4692                                  tree_view->priv->bin_window,
4693                                  GTK_WIDGET_STATE (widget),
4694                                  &event->area,
4695                                  widget,
4696                                  (is_first
4697                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4698                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4699                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4700                                  - focus_line_width / 2,
4701                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4702                                - focus_line_width + 1);
4703               else
4704                 gtk_paint_focus (widget->style,
4705                                  tree_view->priv->bin_window,
4706                                  GTK_WIDGET_STATE (widget),
4707                                  &event->area,
4708                                  widget,
4709                                  "treeview-drop-indicator",
4710                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4711                                  - focus_line_width / 2,
4712                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4713                                  - focus_line_width + 1);
4714               break;
4715             }
4716
4717           if (highlight_y >= 0)
4718             {
4719               gdk_draw_line (event->window,
4720                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4721                              rtl ? highlight_x + expander_cell_width : highlight_x,
4722                              highlight_y,
4723                              rtl ? 0 : bin_window_width,
4724                              highlight_y);
4725             }
4726         }
4727
4728       /* draw the big row-spanning focus rectangle, if needed */
4729       if (!has_special_cell && node == cursor &&
4730           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4731           GTK_WIDGET_HAS_FOCUS (widget))
4732         {
4733           gint tmp_y, tmp_height;
4734           gint width;
4735           GtkStateType focus_rect_state;
4736
4737           focus_rect_state =
4738             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4739             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4740              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4741               GTK_STATE_NORMAL));
4742
4743           gdk_drawable_get_size (tree_view->priv->bin_window,
4744                                  &width, NULL);
4745
4746           if (draw_hgrid_lines)
4747             {
4748               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4749               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4750             }
4751           else
4752             {
4753               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4754               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4755             }
4756
4757           if (row_ending_details)
4758             gtk_paint_focus (widget->style,
4759                              tree_view->priv->bin_window,
4760                              focus_rect_state,
4761                              &event->area,
4762                              widget,
4763                              (is_first
4764                               ? (is_last ? "treeview" : "treeview-left" )
4765                               : (is_last ? "treeview-right" : "treeview-middle" )),
4766                              0, tmp_y,
4767                              width, tmp_height);
4768           else
4769             gtk_paint_focus (widget->style,
4770                              tree_view->priv->bin_window,
4771                              focus_rect_state,
4772                              &event->area,
4773                              widget,
4774                              "treeview",
4775                              0, tmp_y,
4776                              width, tmp_height);
4777         }
4778
4779       y_offset += max_height;
4780       if (node->children)
4781         {
4782           GtkTreeIter parent = iter;
4783           gboolean has_child;
4784
4785           tree = node->children;
4786           node = tree->root;
4787
4788           g_assert (node != tree->nil);
4789
4790           while (node->left != tree->nil)
4791             node = node->left;
4792           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4793                                                     &iter,
4794                                                     &parent);
4795           depth++;
4796
4797           /* Sanity Check! */
4798           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4799         }
4800       else
4801         {
4802           gboolean done = FALSE;
4803
4804           do
4805             {
4806               node = _gtk_rbtree_next (tree, node);
4807               if (node != NULL)
4808                 {
4809                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4810                   done = TRUE;
4811
4812                   /* Sanity Check! */
4813                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4814                 }
4815               else
4816                 {
4817                   GtkTreeIter parent_iter = iter;
4818                   gboolean has_parent;
4819
4820                   node = tree->parent_node;
4821                   tree = tree->parent_tree;
4822                   if (tree == NULL)
4823                     /* we should go to done to free some memory */
4824                     goto done;
4825                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4826                                                            &iter,
4827                                                            &parent_iter);
4828                   depth--;
4829
4830                   /* Sanity check */
4831                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4832                 }
4833             }
4834           while (!done);
4835         }
4836     }
4837   while (y_offset < event->area.height);
4838
4839 done:
4840   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4841
4842  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4843    {
4844      GdkRectangle *rectangles;
4845      gint n_rectangles;
4846
4847      gdk_region_get_rectangles (event->region,
4848                                 &rectangles,
4849                                 &n_rectangles);
4850
4851      while (n_rectangles--)
4852        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4853
4854      g_free (rectangles);
4855    }
4856
4857   if (cursor_path)
4858     gtk_tree_path_free (cursor_path);
4859
4860   if (drag_dest_path)
4861     gtk_tree_path_free (drag_dest_path);
4862
4863   return FALSE;
4864 }
4865
4866 static gboolean
4867 gtk_tree_view_expose (GtkWidget      *widget,
4868                       GdkEventExpose *event)
4869 {
4870   GtkTreeView *tree_view;
4871
4872   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
4873
4874   tree_view = GTK_TREE_VIEW (widget);
4875
4876   if (event->window == tree_view->priv->bin_window)
4877     {
4878       gboolean retval;
4879       GList *tmp_list;
4880
4881       retval = gtk_tree_view_bin_expose (widget, event);
4882
4883       /* We can't just chain up to Container::expose as it will try to send the
4884        * event to the headers, so we handle propagating it to our children
4885        * (eg. widgets being edited) ourselves.
4886        */
4887       tmp_list = tree_view->priv->children;
4888       while (tmp_list)
4889         {
4890           GtkTreeViewChild *child = tmp_list->data;
4891           tmp_list = tmp_list->next;
4892
4893           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4894         }
4895
4896       return retval;
4897     }
4898
4899   else if (event->window == tree_view->priv->header_window)
4900     {
4901       GList *list;
4902
4903       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4904         {
4905           GtkTreeViewColumn *column = list->data;
4906
4907           if (column == tree_view->priv->drag_column)
4908             continue;
4909
4910           if (column->visible)
4911             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4912                                             column->button,
4913                                             event);
4914         }
4915     }
4916   else if (event->window == tree_view->priv->drag_window)
4917     {
4918       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4919                                       tree_view->priv->drag_column->button,
4920                                       event);
4921     }
4922   return TRUE;
4923 }
4924
4925 enum
4926 {
4927   DROP_HOME,
4928   DROP_RIGHT,
4929   DROP_LEFT,
4930   DROP_END
4931 };
4932
4933 /* returns 0x1 when no column has been found -- yes it's hackish */
4934 static GtkTreeViewColumn *
4935 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
4936                                GtkTreeViewColumn *column,
4937                                gint               drop_position)
4938 {
4939   GtkTreeViewColumn *left_column = NULL;
4940   GtkTreeViewColumn *cur_column = NULL;
4941   GList *tmp_list;
4942
4943   if (!column->reorderable)
4944     return (GtkTreeViewColumn *)0x1;
4945
4946   switch (drop_position)
4947     {
4948       case DROP_HOME:
4949         /* find first column where we can drop */
4950         tmp_list = tree_view->priv->columns;
4951         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
4952           return (GtkTreeViewColumn *)0x1;
4953
4954         while (tmp_list)
4955           {
4956             g_assert (tmp_list);
4957
4958             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
4959             tmp_list = tmp_list->next;
4960
4961             if (left_column && left_column->visible == FALSE)
4962               continue;
4963
4964             if (!tree_view->priv->column_drop_func)
4965               return left_column;
4966
4967             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
4968               {
4969                 left_column = cur_column;
4970                 continue;
4971               }
4972
4973             return left_column;
4974           }
4975
4976         if (!tree_view->priv->column_drop_func)
4977           return left_column;
4978
4979         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
4980           return left_column;
4981         else
4982           return (GtkTreeViewColumn *)0x1;
4983         break;
4984
4985       case DROP_RIGHT:
4986         /* find first column after column where we can drop */
4987         tmp_list = tree_view->priv->columns;
4988
4989         for (; tmp_list; tmp_list = tmp_list->next)
4990           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
4991             break;
4992
4993         if (!tmp_list || !tmp_list->next)
4994           return (GtkTreeViewColumn *)0x1;
4995
4996         tmp_list = tmp_list->next;
4997         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
4998         tmp_list = tmp_list->next;
4999
5000         while (tmp_list)
5001           {
5002             g_assert (tmp_list);
5003
5004             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5005             tmp_list = tmp_list->next;
5006
5007             if (left_column && left_column->visible == FALSE)
5008               {
5009                 left_column = cur_column;
5010                 if (tmp_list)
5011                   tmp_list = tmp_list->next;
5012                 continue;
5013               }
5014
5015             if (!tree_view->priv->column_drop_func)
5016               return left_column;
5017
5018             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5019               {
5020                 left_column = cur_column;
5021                 continue;
5022               }
5023
5024             return left_column;
5025           }
5026
5027         if (!tree_view->priv->column_drop_func)
5028           return left_column;
5029
5030         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5031           return left_column;
5032         else
5033           return (GtkTreeViewColumn *)0x1;
5034         break;
5035
5036       case DROP_LEFT:
5037         /* find first column before column where we can drop */
5038         tmp_list = tree_view->priv->columns;
5039
5040         for (; tmp_list; tmp_list = tmp_list->next)
5041           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5042             break;
5043
5044         if (!tmp_list || !tmp_list->prev)
5045           return (GtkTreeViewColumn *)0x1;
5046
5047         tmp_list = tmp_list->prev;
5048         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5049         tmp_list = tmp_list->prev;
5050
5051         while (tmp_list)
5052           {
5053             g_assert (tmp_list);
5054
5055             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5056
5057             if (left_column && !left_column->visible)
5058               {
5059                 /*if (!tmp_list->prev)
5060                   return (GtkTreeViewColumn *)0x1;
5061                   */
5062 /*
5063                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5064                 tmp_list = tmp_list->prev->prev;
5065                 continue;*/
5066
5067                 cur_column = left_column;
5068                 if (tmp_list)
5069                   tmp_list = tmp_list->prev;
5070                 continue;
5071               }
5072
5073             if (!tree_view->priv->column_drop_func)
5074               return left_column;
5075
5076             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5077               return left_column;
5078
5079             cur_column = left_column;
5080             tmp_list = tmp_list->prev;
5081           }
5082
5083         if (!tree_view->priv->column_drop_func)
5084           return NULL;
5085
5086         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5087           return NULL;
5088         else
5089           return (GtkTreeViewColumn *)0x1;
5090         break;
5091
5092       case DROP_END:
5093         /* same as DROP_HOME case, but doing it backwards */
5094         tmp_list = g_list_last (tree_view->priv->columns);
5095         cur_column = NULL;
5096
5097         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5098           return (GtkTreeViewColumn *)0x1;
5099
5100         while (tmp_list)
5101           {
5102             g_assert (tmp_list);
5103
5104             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5105
5106             if (left_column && !left_column->visible)
5107               {
5108                 cur_column = left_column;
5109                 tmp_list = tmp_list->prev;
5110               }
5111
5112             if (!tree_view->priv->column_drop_func)
5113               return left_column;
5114
5115             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5116               return left_column;
5117
5118             cur_column = left_column;
5119             tmp_list = tmp_list->prev;
5120           }
5121
5122         if (!tree_view->priv->column_drop_func)
5123           return NULL;
5124
5125         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5126           return NULL;
5127         else
5128           return (GtkTreeViewColumn *)0x1;
5129         break;
5130     }
5131
5132   return (GtkTreeViewColumn *)0x1;
5133 }
5134
5135 static gboolean
5136 gtk_tree_view_key_press (GtkWidget   *widget,
5137                          GdkEventKey *event)
5138 {
5139   GtkTreeView *tree_view = (GtkTreeView *) widget;
5140
5141   if (tree_view->priv->rubber_band_status)
5142     {
5143       if (event->keyval == GDK_Escape)
5144         gtk_tree_view_stop_rubber_band (tree_view);
5145
5146       return TRUE;
5147     }
5148
5149   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5150     {
5151       if (event->keyval == GDK_Escape)
5152         {
5153           tree_view->priv->cur_reorder = NULL;
5154           gtk_tree_view_button_release_drag_column (widget, NULL);
5155         }
5156       return TRUE;
5157     }
5158
5159   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5160     {
5161       GList *focus_column;
5162       gboolean rtl;
5163
5164       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5165
5166       for (focus_column = tree_view->priv->columns;
5167            focus_column;
5168            focus_column = focus_column->next)
5169         {
5170           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5171
5172           if (GTK_WIDGET_HAS_FOCUS (column->button))
5173             break;
5174         }
5175
5176       if (focus_column &&
5177           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5178           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5179            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5180         {
5181           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5182
5183           if (!column->resizable)
5184             {
5185               gtk_widget_error_bell (widget);
5186               return TRUE;
5187             }
5188
5189           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5190               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5191             {
5192               gint old_width = column->resized_width;
5193
5194               column->resized_width = MAX (column->resized_width,
5195                                            column->width);
5196               column->resized_width -= 2;
5197               if (column->resized_width < 0)
5198                 column->resized_width = 0;
5199
5200               if (column->min_width == -1)
5201                 column->resized_width = MAX (column->button->requisition.width,
5202                                              column->resized_width);
5203               else
5204                 column->resized_width = MAX (column->min_width,
5205                                              column->resized_width);
5206
5207               if (column->max_width != -1)
5208                 column->resized_width = MIN (column->resized_width,
5209                                              column->max_width);
5210
5211               column->use_resized_width = TRUE;
5212
5213               if (column->resized_width != old_width)
5214                 gtk_widget_queue_resize (widget);
5215               else
5216                 gtk_widget_error_bell (widget);
5217             }
5218           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5219                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5220             {
5221               gint old_width = column->resized_width;
5222
5223               column->resized_width = MAX (column->resized_width,
5224                                            column->width);
5225               column->resized_width += 2;
5226
5227               if (column->max_width != -1)
5228                 column->resized_width = MIN (column->resized_width,
5229                                              column->max_width);
5230
5231               column->use_resized_width = TRUE;
5232
5233               if (column->resized_width != old_width)
5234                 gtk_widget_queue_resize (widget);
5235               else
5236                 gtk_widget_error_bell (widget);
5237             }
5238
5239           return TRUE;
5240         }
5241
5242       if (focus_column &&
5243           (event->state & GDK_MOD1_MASK) &&
5244           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5245            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5246            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5247            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5248         {
5249           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5250
5251           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5252               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5253             {
5254               GtkTreeViewColumn *col;
5255               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5256               if (col != (GtkTreeViewColumn *)0x1)
5257                 gtk_tree_view_move_column_after (tree_view, column, col);
5258               else
5259                 gtk_widget_error_bell (widget);
5260             }
5261           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5262                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5263             {
5264               GtkTreeViewColumn *col;
5265               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5266               if (col != (GtkTreeViewColumn *)0x1)
5267                 gtk_tree_view_move_column_after (tree_view, column, col);
5268               else
5269                 gtk_widget_error_bell (widget);
5270             }
5271           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5272             {
5273               GtkTreeViewColumn *col;
5274               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5275               if (col != (GtkTreeViewColumn *)0x1)
5276                 gtk_tree_view_move_column_after (tree_view, column, col);
5277               else
5278                 gtk_widget_error_bell (widget);
5279             }
5280           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5281             {
5282               GtkTreeViewColumn *col;
5283               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5284               if (col != (GtkTreeViewColumn *)0x1)
5285                 gtk_tree_view_move_column_after (tree_view, column, col);
5286               else
5287                 gtk_widget_error_bell (widget);
5288             }
5289
5290           return TRUE;
5291         }
5292     }
5293
5294   /* Chain up to the parent class.  It handles the keybindings. */
5295   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5296     return TRUE;
5297
5298   /* We pass the event to the search_entry.  If its text changes, then we start
5299    * the typeahead find capabilities. */
5300   if (tree_view->priv->enable_search
5301       && !tree_view->priv->search_custom_entry_set)
5302     {
5303       GdkEvent *new_event;
5304       char *old_text;
5305       const char *new_text;
5306       gboolean retval;
5307       GdkScreen *screen;
5308       gboolean text_modified;
5309       gulong popup_menu_id;
5310
5311       gtk_tree_view_ensure_interactive_directory (tree_view);
5312
5313       /* Make a copy of the current text */
5314       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5315       new_event = gdk_event_copy ((GdkEvent *) event);
5316       g_object_unref (((GdkEventKey *) new_event)->window);
5317       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5318       gtk_widget_realize (tree_view->priv->search_window);
5319
5320       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5321                                         "popup_menu", G_CALLBACK (gtk_true), NULL);
5322
5323       /* Move the entry off screen */
5324       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5325       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5326                        gdk_screen_get_width (screen) + 1,
5327                        gdk_screen_get_height (screen) + 1);
5328       gtk_widget_show (tree_view->priv->search_window);
5329
5330       /* Send the event to the window.  If the preedit_changed signal is emitted
5331        * during this event, we will set priv->imcontext_changed  */
5332       tree_view->priv->imcontext_changed = FALSE;
5333       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5334       gdk_event_free (new_event);
5335       gtk_widget_hide (tree_view->priv->search_window);
5336
5337       g_signal_handler_disconnect (tree_view->priv->search_entry,
5338                                    popup_menu_id);
5339
5340       /* We check to make sure that the entry tried to handle the text, and that
5341        * the text has changed.
5342        */
5343       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5344       text_modified = strcmp (old_text, new_text) != 0;
5345       g_free (old_text);
5346       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5347           (retval && text_modified))               /* ...or the text was modified */
5348         {
5349           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5350             {
5351               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5352               return TRUE;
5353             }
5354           else
5355             {
5356               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5357               return FALSE;
5358             }
5359         }
5360     }
5361
5362   return FALSE;
5363 }
5364
5365 static gboolean
5366 gtk_tree_view_key_release (GtkWidget   *widget,
5367                            GdkEventKey *event)
5368 {
5369   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5370
5371   if (tree_view->priv->rubber_band_status)
5372     return TRUE;
5373
5374   return (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event) (widget, event);
5375 }
5376
5377 /* FIXME Is this function necessary? Can I get an enter_notify event
5378  * w/o either an expose event or a mouse motion event?
5379  */
5380 static gboolean
5381 gtk_tree_view_enter_notify (GtkWidget        *widget,
5382                             GdkEventCrossing *event)
5383 {
5384   GtkTreeView *tree_view;
5385   GtkRBTree *tree;
5386   GtkRBNode *node;
5387   gint new_y;
5388
5389   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
5390
5391   tree_view = GTK_TREE_VIEW (widget);
5392
5393   /* Sanity check it */
5394   if (event->window != tree_view->priv->bin_window)
5395     return FALSE;
5396
5397   if (tree_view->priv->tree == NULL)
5398     return FALSE;
5399
5400   /* find the node internally */
5401   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5402   if (new_y < 0)
5403     new_y = 0;
5404   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5405
5406   if ((tree_view->priv->button_pressed_node == NULL) ||
5407       (tree_view->priv->button_pressed_node == node))
5408     prelight_or_select (tree_view, tree, node, event->x, event->y);
5409
5410   return TRUE;
5411 }
5412
5413 static gboolean
5414 gtk_tree_view_leave_notify (GtkWidget        *widget,
5415                             GdkEventCrossing *event)
5416 {
5417   GtkTreeView *tree_view;
5418
5419   if (event->mode == GDK_CROSSING_GRAB)
5420     return TRUE;
5421
5422   tree_view = GTK_TREE_VIEW (widget);
5423
5424   if (tree_view->priv->prelight_node)
5425     _gtk_tree_view_queue_draw_node (tree_view,
5426                                    tree_view->priv->prelight_tree,
5427                                    tree_view->priv->prelight_node,
5428                                    NULL);
5429
5430   prelight_or_select (tree_view,
5431                       NULL, NULL,
5432                       -1000, -1000); /* coords not possibly over an arrow */
5433
5434   return TRUE;
5435 }
5436
5437
5438 static gint
5439 gtk_tree_view_focus_out (GtkWidget     *widget,
5440                          GdkEventFocus *event)
5441 {
5442   GtkTreeView *tree_view;
5443
5444   tree_view = GTK_TREE_VIEW (widget);
5445
5446   gtk_widget_queue_draw (widget);
5447
5448   /* destroy interactive search dialog */
5449   if (tree_view->priv->search_window)
5450     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5451
5452   return FALSE;
5453 }
5454
5455
5456 /* Incremental Reflow
5457  */
5458
5459 static void
5460 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5461                                  GtkRBTree   *tree,
5462                                  GtkRBNode   *node)
5463 {
5464   gint y;
5465
5466   y = _gtk_rbtree_node_find_offset (tree, node)
5467     - tree_view->priv->vadjustment->value
5468     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5469
5470   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5471                               0, y,
5472                               GTK_WIDGET (tree_view)->allocation.width,
5473                               GTK_RBNODE_GET_HEIGHT (node));
5474 }
5475
5476 static gboolean
5477 node_is_visible (GtkTreeView *tree_view,
5478                  GtkRBTree   *tree,
5479                  GtkRBNode   *node)
5480 {
5481   int y;
5482   int height;
5483
5484   y = _gtk_rbtree_node_find_offset (tree, node);
5485   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5486
5487   if (y >= tree_view->priv->vadjustment->value &&
5488       y + height <= (tree_view->priv->vadjustment->value
5489                      + tree_view->priv->vadjustment->page_size))
5490     return TRUE;
5491
5492   return FALSE;
5493 }
5494
5495 /* Returns TRUE if it updated the size
5496  */
5497 static gboolean
5498 validate_row (GtkTreeView *tree_view,
5499               GtkRBTree   *tree,
5500               GtkRBNode   *node,
5501               GtkTreeIter *iter,
5502               GtkTreePath *path)
5503 {
5504   GtkTreeViewColumn *column;
5505   GList *list, *first_column, *last_column;
5506   gint height = 0;
5507   gint horizontal_separator;
5508   gint vertical_separator;
5509   gint focus_line_width;
5510   gint depth = gtk_tree_path_get_depth (path);
5511   gboolean retval = FALSE;
5512   gboolean is_separator = FALSE;
5513   gboolean draw_vgrid_lines, draw_hgrid_lines;
5514   gint focus_pad;
5515   gint grid_line_width;
5516
5517   /* double check the row needs validating */
5518   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5519       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5520     return FALSE;
5521
5522   if (tree_view->priv->row_separator_func)
5523     {
5524       is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
5525                                                               iter,
5526                                                               tree_view->priv->row_separator_data);
5527     }
5528
5529   gtk_widget_style_get (GTK_WIDGET (tree_view),
5530                         "focus-padding", &focus_pad,
5531                         "focus-line-width", &focus_line_width,
5532                         "horizontal-separator", &horizontal_separator,
5533                         "vertical-separator", &vertical_separator,
5534                         "grid-line-width", &grid_line_width,
5535                         NULL);
5536
5537   draw_vgrid_lines =
5538     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5539     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5540   draw_hgrid_lines =
5541     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5542     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5543
5544   for (last_column = g_list_last (tree_view->priv->columns);
5545        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5546        last_column = last_column->prev)
5547     ;
5548
5549   for (first_column = g_list_first (tree_view->priv->columns);
5550        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5551        first_column = first_column->next)
5552     ;
5553
5554   for (list = tree_view->priv->columns; list; list = list->next)
5555     {
5556       gint tmp_width;
5557       gint tmp_height;
5558
5559       column = list->data;
5560
5561       if (! column->visible)
5562         continue;
5563
5564       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5565         continue;
5566
5567       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5568                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5569                                                node->children?TRUE:FALSE);
5570       gtk_tree_view_column_cell_get_size (column,
5571                                           NULL, NULL, NULL,
5572                                           &tmp_width, &tmp_height);
5573
5574       if (!is_separator)
5575         {
5576           tmp_height += vertical_separator;
5577           height = MAX (height, tmp_height);
5578           height = MAX (height, tree_view->priv->expander_size);
5579         }
5580       else
5581         height = 2 + 2 * focus_pad;
5582
5583       if (gtk_tree_view_is_expander_column (tree_view, column))
5584         {
5585           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5586
5587           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5588             tmp_width += depth * tree_view->priv->expander_size;
5589         }
5590       else
5591         tmp_width = tmp_width + horizontal_separator;
5592
5593       if (draw_vgrid_lines)
5594         {
5595           if (list->data == first_column || list->data == last_column)
5596             tmp_width += grid_line_width / 2.0;
5597           else
5598             tmp_width += grid_line_width;
5599         }
5600
5601       if (tmp_width > column->requested_width)
5602         {
5603           retval = TRUE;
5604           column->requested_width = tmp_width;
5605         }
5606     }
5607
5608   if (draw_hgrid_lines)
5609     height += grid_line_width;
5610
5611   if (height != GTK_RBNODE_GET_HEIGHT (node))
5612     {
5613       retval = TRUE;
5614       _gtk_rbtree_node_set_height (tree, node, height);
5615     }
5616   _gtk_rbtree_node_mark_valid (tree, node);
5617
5618   return retval;
5619 }
5620
5621
5622 static void
5623 validate_visible_area (GtkTreeView *tree_view)
5624 {
5625   GtkTreePath *path = NULL;
5626   GtkTreePath *above_path = NULL;
5627   GtkTreeIter iter;
5628   GtkRBTree *tree = NULL;
5629   GtkRBNode *node = NULL;
5630   gboolean need_redraw = FALSE;
5631   gboolean size_changed = FALSE;
5632   gint total_height;
5633   gint area_above = 0;
5634   gint area_below = 0;
5635
5636   if (tree_view->priv->tree == NULL)
5637     return;
5638
5639   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5640       tree_view->priv->scroll_to_path == NULL)
5641     return;
5642
5643   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5644
5645   if (total_height == 0)
5646     return;
5647
5648   /* First, we check to see if we need to scroll anywhere
5649    */
5650   if (tree_view->priv->scroll_to_path)
5651     {
5652       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5653       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5654         {
5655           /* we are going to scroll, and will update dy */
5656           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5657           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5658               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5659             {
5660               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5661               if (validate_row (tree_view, tree, node, &iter, path))
5662                 size_changed = TRUE;
5663             }
5664
5665           if (tree_view->priv->scroll_to_use_align)
5666             {
5667               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5668               area_above = (total_height - height) *
5669                 tree_view->priv->scroll_to_row_align;
5670               area_below = total_height - area_above - height;
5671               area_above = MAX (area_above, 0);
5672               area_below = MAX (area_below, 0);
5673             }
5674           else
5675             {
5676               /* two cases:
5677                * 1) row not visible
5678                * 2) row visible
5679                */
5680               gint dy;
5681               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5682
5683               dy = _gtk_rbtree_node_find_offset (tree, node);
5684
5685               if (dy >= tree_view->priv->vadjustment->value &&
5686                   dy + height <= (tree_view->priv->vadjustment->value
5687                                   + tree_view->priv->vadjustment->page_size))
5688                 {
5689                   /* row visible: keep the row at the same position */
5690                   area_above = dy - tree_view->priv->vadjustment->value;
5691                   area_below = (tree_view->priv->vadjustment->value +
5692                                 tree_view->priv->vadjustment->page_size)
5693                                - dy - height;
5694                 }
5695               else
5696                 {
5697                   /* row not visible */
5698                   if (dy >= 0
5699                       && dy + height <= tree_view->priv->vadjustment->page_size)
5700                     {
5701                       /* row at the beginning -- fixed */
5702                       area_above = dy;
5703                       area_below = tree_view->priv->vadjustment->page_size
5704                                    - area_above - height;
5705                     }
5706                   else if (dy >= (tree_view->priv->vadjustment->upper -
5707                                   tree_view->priv->vadjustment->page_size))
5708                     {
5709                       /* row at the end -- fixed */
5710                       area_above = dy - (tree_view->priv->vadjustment->upper -
5711                                    tree_view->priv->vadjustment->page_size);
5712                       area_below = tree_view->priv->vadjustment->page_size -
5713                                    area_above - height;
5714
5715                       if (area_below < 0)
5716                         {
5717                           area_above = tree_view->priv->vadjustment->page_size - height;
5718                           area_below = 0;
5719                         }
5720                     }
5721                   else
5722                     {
5723                       /* row somewhere in the middle, bring it to the top
5724                        * of the view
5725                        */
5726                       area_above = 0;
5727                       area_below = total_height - height;
5728                     }
5729                 }
5730             }
5731         }
5732       else
5733         /* the scroll to isn't valid; ignore it.
5734          */
5735         {
5736           if (tree_view->priv->scroll_to_path && !path)
5737             {
5738               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5739               tree_view->priv->scroll_to_path = NULL;
5740             }
5741           if (path)
5742             gtk_tree_path_free (path);
5743           path = NULL;
5744         }
5745     }
5746
5747   /* We didn't have a scroll_to set, so we just handle things normally
5748    */
5749   if (path == NULL)
5750     {
5751       gint offset;
5752
5753       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5754                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5755                                         &tree, &node);
5756       if (node == NULL)
5757         {
5758           /* In this case, nothing has been validated */
5759           path = gtk_tree_path_new_first ();
5760           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5761         }
5762       else
5763         {
5764           path = _gtk_tree_view_find_path (tree_view, tree, node);
5765           total_height += offset;
5766         }
5767
5768       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5769
5770       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5771           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5772         {
5773           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5774           if (validate_row (tree_view, tree, node, &iter, path))
5775             size_changed = TRUE;
5776         }
5777       area_above = 0;
5778       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5779     }
5780
5781   above_path = gtk_tree_path_copy (path);
5782
5783   /* if we do not validate any row above the new top_row, we will make sure
5784    * that the row immediately above top_row has been validated. (if we do not
5785    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5786    * when invalidated that row's height will be zero. and this will mess up
5787    * scrolling).
5788    */
5789   if (area_above == 0)
5790     {
5791       GtkRBTree *tmptree;
5792       GtkRBNode *tmpnode;
5793
5794       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5795       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5796
5797       if (tmpnode)
5798         {
5799           GtkTreePath *tmppath;
5800           GtkTreeIter tmpiter;
5801
5802           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5803           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5804
5805           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5806               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5807             {
5808               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5809               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5810                 size_changed = TRUE;
5811             }
5812
5813           gtk_tree_path_free (tmppath);
5814         }
5815     }
5816
5817   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5818    * backwards is much slower then forward, as there is no iter_prev function.
5819    * We go forwards first in case we run out of tree.  Then we go backwards to
5820    * fill out the top.
5821    */
5822   while (node && area_below > 0)
5823     {
5824       if (node->children)
5825         {
5826           GtkTreeIter parent = iter;
5827           gboolean has_child;
5828
5829           tree = node->children;
5830           node = tree->root;
5831
5832           g_assert (node != tree->nil);
5833
5834           while (node->left != tree->nil)
5835             node = node->left;
5836           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5837                                                     &iter,
5838                                                     &parent);
5839           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5840           gtk_tree_path_down (path);
5841         }
5842       else
5843         {
5844           gboolean done = FALSE;
5845           do
5846             {
5847               node = _gtk_rbtree_next (tree, node);
5848               if (node != NULL)
5849                 {
5850                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5851                   done = TRUE;
5852                   gtk_tree_path_next (path);
5853
5854                   /* Sanity Check! */
5855                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5856                 }
5857               else
5858                 {
5859                   GtkTreeIter parent_iter = iter;
5860                   gboolean has_parent;
5861
5862                   node = tree->parent_node;
5863                   tree = tree->parent_tree;
5864                   if (tree == NULL)
5865                     break;
5866                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5867                                                            &iter,
5868                                                            &parent_iter);
5869                   gtk_tree_path_up (path);
5870
5871                   /* Sanity check */
5872                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5873                 }
5874             }
5875           while (!done);
5876         }
5877
5878       if (!node)
5879         break;
5880
5881       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5882           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5883         {
5884           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5885           if (validate_row (tree_view, tree, node, &iter, path))
5886               size_changed = TRUE;
5887         }
5888
5889       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5890     }
5891   gtk_tree_path_free (path);
5892
5893   /* If we ran out of tree, and have extra area_below left, we need to add it
5894    * to area_above */
5895   if (area_below > 0)
5896     area_above += area_below;
5897
5898   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5899
5900   /* We walk backwards */
5901   while (area_above > 0)
5902     {
5903       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5904       if (! gtk_tree_path_prev (above_path) && node != NULL)
5905         {
5906           gtk_tree_path_free (above_path);
5907           above_path = _gtk_tree_view_find_path (tree_view, tree, node);
5908         }
5909       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
5910
5911       if (node == NULL)
5912         break;
5913
5914       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5915           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5916         {
5917           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5918           if (validate_row (tree_view, tree, node, &iter, above_path))
5919             size_changed = TRUE;
5920         }
5921       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5922     }
5923
5924   /* if we scrolled to a path, we need to set the dy here,
5925    * and sync the top row accordingly
5926    */
5927   if (tree_view->priv->scroll_to_path)
5928     {
5929       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
5930       gtk_tree_view_top_row_to_dy (tree_view);
5931
5932       need_redraw = TRUE;
5933     }
5934   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
5935     {
5936       /* when we are not scrolling, we should never set dy to something
5937        * else than zero. we update top_row to be in sync with dy = 0.
5938        */
5939       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
5940       gtk_tree_view_dy_to_top_row (tree_view);
5941     }
5942   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
5943     {
5944       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
5945       gtk_tree_view_dy_to_top_row (tree_view);
5946     }
5947   else
5948     gtk_tree_view_top_row_to_dy (tree_view);
5949
5950   /* update width/height and queue a resize */
5951   if (size_changed)
5952     {
5953       GtkRequisition requisition;
5954
5955       /* We temporarily guess a size, under the assumption that it will be the
5956        * same when we get our next size_allocate.  If we don't do this, we'll be
5957        * in an inconsistent state if we call top_row_to_dy. */
5958
5959       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
5960       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
5961       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
5962       gtk_adjustment_changed (tree_view->priv->hadjustment);
5963       gtk_adjustment_changed (tree_view->priv->vadjustment);
5964       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
5965     }
5966
5967   if (tree_view->priv->scroll_to_path)
5968     {
5969       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5970       tree_view->priv->scroll_to_path = NULL;
5971     }
5972
5973   if (above_path)
5974     gtk_tree_path_free (above_path);
5975
5976   if (tree_view->priv->scroll_to_column)
5977     {
5978       tree_view->priv->scroll_to_column = NULL;
5979     }
5980   if (need_redraw)
5981     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
5982 }
5983
5984 static void
5985 initialize_fixed_height_mode (GtkTreeView *tree_view)
5986 {
5987   if (!tree_view->priv->tree)
5988     return;
5989
5990   if (tree_view->priv->fixed_height < 0)
5991     {
5992       GtkTreeIter iter;
5993       GtkTreePath *path;
5994
5995       GtkRBTree *tree = NULL;
5996       GtkRBNode *node = NULL;
5997
5998       tree = tree_view->priv->tree;
5999       node = tree->root;
6000
6001       path = _gtk_tree_view_find_path (tree_view, tree, node);
6002       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6003
6004       validate_row (tree_view, tree, node, &iter, path);
6005
6006       gtk_tree_path_free (path);
6007
6008       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6009     }
6010
6011    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6012                                  tree_view->priv->fixed_height, TRUE);
6013 }
6014
6015 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6016  * the left-most uninvalidated node.  We then try walking right, validating
6017  * nodes.  Once we find a valid node, we repeat the previous process of finding
6018  * the first invalid node.
6019  */
6020
6021 static gboolean
6022 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6023 {
6024   GtkRBTree *tree = NULL;
6025   GtkRBNode *node = NULL;
6026   gboolean validated_area = FALSE;
6027   gint retval = TRUE;
6028   GtkTreePath *path = NULL;
6029   GtkTreeIter iter;
6030   gint i = 0;
6031
6032   gint prev_height = -1;
6033   gboolean fixed_height = TRUE;
6034
6035   g_assert (tree_view);
6036
6037   if (tree_view->priv->tree == NULL)
6038       return FALSE;
6039
6040   if (tree_view->priv->fixed_height_mode)
6041     {
6042       if (tree_view->priv->fixed_height < 0)
6043         initialize_fixed_height_mode (tree_view);
6044
6045       return FALSE;
6046     }
6047
6048   do
6049     {
6050       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6051         {
6052           retval = FALSE;
6053           goto done;
6054         }
6055
6056       if (path != NULL)
6057         {
6058           node = _gtk_rbtree_next (tree, node);
6059           if (node != NULL)
6060             {
6061               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6062               gtk_tree_path_next (path);
6063             }
6064           else
6065             {
6066               gtk_tree_path_free (path);
6067               path = NULL;
6068             }
6069         }
6070
6071       if (path == NULL)
6072         {
6073           tree = tree_view->priv->tree;
6074           node = tree_view->priv->tree->root;
6075
6076           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6077
6078           do
6079             {
6080               if (node->left != tree->nil &&
6081                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6082                 {
6083                   node = node->left;
6084                 }
6085               else if (node->right != tree->nil &&
6086                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6087                 {
6088                   node = node->right;
6089                 }
6090               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6091                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6092                 {
6093                   break;
6094                 }
6095               else if (node->children != NULL)
6096                 {
6097                   tree = node->children;
6098                   node = tree->root;
6099                 }
6100               else
6101                 /* RBTree corruption!  All bad */
6102                 g_assert_not_reached ();
6103             }
6104           while (TRUE);
6105           path = _gtk_tree_view_find_path (tree_view, tree, node);
6106           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6107         }
6108
6109       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6110                        validated_area;
6111
6112       if (!tree_view->priv->fixed_height_check)
6113         {
6114           gint height;
6115
6116           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6117           if (prev_height < 0)
6118             prev_height = height;
6119           else if (prev_height != height)
6120             fixed_height = FALSE;
6121         }
6122
6123       i++;
6124     }
6125   while (i < GTK_TREE_VIEW_NUM_ROWS_PER_IDLE);
6126
6127   if (!tree_view->priv->fixed_height_check)
6128    {
6129      if (fixed_height)
6130        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6131
6132      tree_view->priv->fixed_height_check = 1;
6133    }
6134
6135  done:
6136   if (validated_area)
6137     {
6138       GtkRequisition requisition;
6139       /* We temporarily guess a size, under the assumption that it will be the
6140        * same when we get our next size_allocate.  If we don't do this, we'll be
6141        * in an inconsistent state when we call top_row_to_dy. */
6142
6143       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6144       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6145       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6146       gtk_adjustment_changed (tree_view->priv->hadjustment);
6147       gtk_adjustment_changed (tree_view->priv->vadjustment);
6148
6149       if (queue_resize)
6150         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
6151     }
6152
6153   if (path) gtk_tree_path_free (path);
6154
6155   return retval;
6156 }
6157
6158 static gboolean
6159 validate_rows (GtkTreeView *tree_view)
6160 {
6161   gboolean retval;
6162
6163   retval = do_validate_rows (tree_view, TRUE);
6164
6165   if (! retval && tree_view->priv->validate_rows_timer)
6166     {
6167       g_source_remove (tree_view->priv->validate_rows_timer);
6168       tree_view->priv->validate_rows_timer = 0;
6169     }
6170
6171   return retval;
6172 }
6173
6174 static gboolean
6175 validate_rows_handler (GtkTreeView *tree_view)
6176 {
6177   gboolean retval;
6178
6179   retval = do_validate_rows (tree_view, TRUE);
6180   if (! retval && tree_view->priv->validate_rows_timer)
6181     {
6182       g_source_remove (tree_view->priv->validate_rows_timer);
6183       tree_view->priv->validate_rows_timer = 0;
6184     }
6185
6186   return retval;
6187 }
6188
6189 static gboolean
6190 do_presize_handler (GtkTreeView *tree_view)
6191 {
6192   if (tree_view->priv->mark_rows_col_dirty)
6193     {
6194       if (tree_view->priv->tree)
6195         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6196       tree_view->priv->mark_rows_col_dirty = FALSE;
6197     }
6198   validate_visible_area (tree_view);
6199   tree_view->priv->presize_handler_timer = 0;
6200
6201   if (tree_view->priv->fixed_height_mode)
6202     {
6203       GtkRequisition requisition;
6204
6205       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6206
6207       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6208       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6209       gtk_adjustment_changed (tree_view->priv->hadjustment);
6210       gtk_adjustment_changed (tree_view->priv->vadjustment);
6211       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6212     }
6213
6214   return FALSE;
6215 }
6216
6217 static gboolean
6218 presize_handler_callback (gpointer data)
6219 {
6220   do_presize_handler (GTK_TREE_VIEW (data));
6221
6222   return FALSE;
6223 }
6224
6225 static void
6226 install_presize_handler (GtkTreeView *tree_view)
6227 {
6228   if (! GTK_WIDGET_REALIZED (tree_view))
6229     return;
6230
6231   if (! tree_view->priv->presize_handler_timer)
6232     {
6233       tree_view->priv->presize_handler_timer =
6234         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6235     }
6236   if (! tree_view->priv->validate_rows_timer)
6237     {
6238       tree_view->priv->validate_rows_timer =
6239         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6240     }
6241 }
6242
6243 static gboolean
6244 scroll_sync_handler (GtkTreeView *tree_view)
6245 {
6246   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6247     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6248   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6249     gtk_tree_view_top_row_to_dy (tree_view);
6250   else
6251     gtk_tree_view_dy_to_top_row (tree_view);
6252
6253   tree_view->priv->scroll_sync_timer = 0;
6254
6255   return FALSE;
6256 }
6257
6258 static void
6259 install_scroll_sync_handler (GtkTreeView *tree_view)
6260 {
6261   if (! GTK_WIDGET_REALIZED (tree_view))
6262     return;
6263
6264   if (!tree_view->priv->scroll_sync_timer)
6265     {
6266       tree_view->priv->scroll_sync_timer =
6267         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6268     }
6269 }
6270
6271 static void
6272 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6273                            GtkTreePath *path,
6274                            gint         offset)
6275 {
6276   gtk_tree_row_reference_free (tree_view->priv->top_row);
6277
6278   if (!path)
6279     {
6280       tree_view->priv->top_row = NULL;
6281       tree_view->priv->top_row_dy = 0;
6282     }
6283   else
6284     {
6285       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6286       tree_view->priv->top_row_dy = offset;
6287     }
6288 }
6289
6290 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6291  * it's set to be NULL, and top_row_dy is 0;
6292  */
6293 static void
6294 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6295 {
6296   gint offset;
6297   GtkTreePath *path;
6298   GtkRBTree *tree;
6299   GtkRBNode *node;
6300
6301   if (tree_view->priv->tree == NULL)
6302     {
6303       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6304     }
6305   else
6306     {
6307       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6308                                         tree_view->priv->dy,
6309                                         &tree, &node);
6310
6311       if (tree == NULL)
6312         {
6313           tree_view->priv->top_row = NULL;
6314           tree_view->priv->top_row_dy = 0;
6315         }
6316       else
6317         {
6318           path = _gtk_tree_view_find_path (tree_view, tree, node);
6319           gtk_tree_view_set_top_row (tree_view, path, offset);
6320           gtk_tree_path_free (path);
6321         }
6322     }
6323 }
6324
6325 static void
6326 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6327 {
6328   GtkTreePath *path;
6329   GtkRBTree *tree;
6330   GtkRBNode *node;
6331
6332   if (tree_view->priv->top_row)
6333     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6334   else
6335     path = NULL;
6336
6337   if (!path)
6338     tree = NULL;
6339   else
6340     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6341
6342   if (path)
6343     gtk_tree_path_free (path);
6344
6345   if (tree == NULL)
6346     {
6347       /* keep dy and set new toprow */
6348       gtk_tree_row_reference_free (tree_view->priv->top_row);
6349       tree_view->priv->top_row = NULL;
6350       tree_view->priv->top_row_dy = 0;
6351       /* DO NOT install the idle handler */
6352       gtk_tree_view_dy_to_top_row (tree_view);
6353       return;
6354     }
6355
6356   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6357       < tree_view->priv->top_row_dy)
6358     {
6359       /* new top row -- do NOT install the idle handler */
6360       gtk_tree_view_dy_to_top_row (tree_view);
6361       return;
6362     }
6363
6364   tree_view->priv->dy = _gtk_rbtree_node_find_offset (tree, node);
6365   tree_view->priv->dy += tree_view->priv->top_row_dy;
6366
6367   if (tree_view->priv->dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6368     tree_view->priv->dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6369
6370   tree_view->priv->dy = MAX (0, tree_view->priv->dy);
6371
6372   gtk_adjustment_set_value (tree_view->priv->vadjustment,
6373                             (gdouble)tree_view->priv->dy);
6374 }
6375
6376
6377 void
6378 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6379 {
6380   tree_view->priv->mark_rows_col_dirty = TRUE;
6381
6382   install_presize_handler (tree_view);
6383 }
6384
6385 /*
6386  * This function works synchronously (due to the while (validate_rows...)
6387  * loop).
6388  *
6389  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6390  * here. You now need to check that yourself.
6391  */
6392 void
6393 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6394                                 GtkTreeViewColumn *column)
6395 {
6396   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6397   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6398
6399   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6400
6401   do_presize_handler (tree_view);
6402   while (validate_rows (tree_view));
6403
6404   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6405 }
6406
6407 /* Drag-and-drop */
6408
6409 static void
6410 set_source_row (GdkDragContext *context,
6411                 GtkTreeModel   *model,
6412                 GtkTreePath    *source_row)
6413 {
6414   g_object_set_data_full (G_OBJECT (context),
6415                           I_("gtk-tree-view-source-row"),
6416                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6417                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6418 }
6419
6420 static GtkTreePath*
6421 get_source_row (GdkDragContext *context)
6422 {
6423   GtkTreeRowReference *ref =
6424     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6425
6426   if (ref)
6427     return gtk_tree_row_reference_get_path (ref);
6428   else
6429     return NULL;
6430 }
6431
6432 typedef struct
6433 {
6434   GtkTreeRowReference *dest_row;
6435   gboolean             path_down_mode;
6436   gboolean             empty_view_drop;
6437   gboolean             drop_append_mode;
6438 }
6439 DestRow;
6440
6441 static void
6442 dest_row_free (gpointer data)
6443 {
6444   DestRow *dr = (DestRow *)data;
6445
6446   gtk_tree_row_reference_free (dr->dest_row);
6447   g_free (dr);
6448 }
6449
6450
6451 static void
6452 set_dest_row (GdkDragContext *context,
6453               GtkTreeModel   *model,
6454               GtkTreePath    *dest_row,
6455               gboolean        path_down_mode,
6456               gboolean        empty_view_drop,
6457               gboolean        drop_append_mode)
6458 {
6459   DestRow *dr;
6460
6461   if (!dest_row)
6462     {
6463       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6464                               NULL, NULL);
6465       return;
6466     }
6467
6468   dr = g_new0 (DestRow, 1);
6469
6470   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6471   dr->path_down_mode = path_down_mode;
6472   dr->empty_view_drop = empty_view_drop;
6473   dr->drop_append_mode = drop_append_mode;
6474
6475   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6476                           dr, (GDestroyNotify) dest_row_free);
6477 }
6478
6479 static GtkTreePath*
6480 get_dest_row (GdkDragContext *context,
6481               gboolean       *path_down_mode)
6482 {
6483   DestRow *dr =
6484     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6485
6486   if (dr)
6487     {
6488       GtkTreePath *path = NULL;
6489
6490       if (path_down_mode)
6491         *path_down_mode = dr->path_down_mode;
6492
6493       if (dr->dest_row)
6494         path = gtk_tree_row_reference_get_path (dr->dest_row);
6495       else if (dr->empty_view_drop)
6496         path = gtk_tree_path_new_from_indices (0, -1);
6497       else
6498         path = NULL;
6499
6500       if (path && dr->drop_append_mode)
6501         gtk_tree_path_next (path);
6502
6503       return path;
6504     }
6505   else
6506     return NULL;
6507 }
6508
6509 /* Get/set whether drag_motion requested the drag data and
6510  * drag_data_received should thus not actually insert the data,
6511  * since the data doesn't result from a drop.
6512  */
6513 static void
6514 set_status_pending (GdkDragContext *context,
6515                     GdkDragAction   suggested_action)
6516 {
6517   g_object_set_data (G_OBJECT (context),
6518                      I_("gtk-tree-view-status-pending"),
6519                      GINT_TO_POINTER (suggested_action));
6520 }
6521
6522 static GdkDragAction
6523 get_status_pending (GdkDragContext *context)
6524 {
6525   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6526                                              "gtk-tree-view-status-pending"));
6527 }
6528
6529 static TreeViewDragInfo*
6530 get_info (GtkTreeView *tree_view)
6531 {
6532   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6533 }
6534
6535 static void
6536 clear_source_info (TreeViewDragInfo *di)
6537 {
6538   if (di->source_target_list)
6539     gtk_target_list_unref (di->source_target_list);
6540
6541   di->source_target_list = NULL;
6542 }
6543
6544 static void
6545 clear_dest_info (TreeViewDragInfo *di)
6546 {
6547   if (di->dest_target_list)
6548     gtk_target_list_unref (di->dest_target_list);
6549
6550   di->dest_target_list = NULL;
6551 }
6552
6553 static void
6554 destroy_info (TreeViewDragInfo *di)
6555 {
6556   clear_source_info (di);
6557   clear_dest_info (di);
6558   g_free (di);
6559 }
6560
6561 static TreeViewDragInfo*
6562 ensure_info (GtkTreeView *tree_view)
6563 {
6564   TreeViewDragInfo *di;
6565
6566   di = get_info (tree_view);
6567
6568   if (di == NULL)
6569     {
6570       di = g_new0 (TreeViewDragInfo, 1);
6571
6572       g_object_set_data_full (G_OBJECT (tree_view),
6573                               I_("gtk-tree-view-drag-info"),
6574                               di,
6575                               (GDestroyNotify) destroy_info);
6576     }
6577
6578   return di;
6579 }
6580
6581 static void
6582 remove_info (GtkTreeView *tree_view)
6583 {
6584   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6585 }
6586
6587 #if 0
6588 static gint
6589 drag_scan_timeout (gpointer data)
6590 {
6591   GtkTreeView *tree_view;
6592   gint x, y;
6593   GdkModifierType state;
6594   GtkTreePath *path = NULL;
6595   GtkTreeViewColumn *column = NULL;
6596   GdkRectangle visible_rect;
6597
6598   GDK_THREADS_ENTER ();
6599
6600   tree_view = GTK_TREE_VIEW (data);
6601
6602   gdk_window_get_pointer (tree_view->priv->bin_window,
6603                           &x, &y, &state);
6604
6605   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6606
6607   /* See if we are near the edge. */
6608   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6609       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6610       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6611       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6612     {
6613       gtk_tree_view_get_path_at_pos (tree_view,
6614                                      tree_view->priv->bin_window,
6615                                      x, y,
6616                                      &path,
6617                                      &column,
6618                                      NULL,
6619                                      NULL);
6620
6621       if (path != NULL)
6622         {
6623           gtk_tree_view_scroll_to_cell (tree_view,
6624                                         path,
6625                                         column,
6626                                         TRUE,
6627                                         0.5, 0.5);
6628
6629           gtk_tree_path_free (path);
6630         }
6631     }
6632
6633   GDK_THREADS_LEAVE ();
6634
6635   return TRUE;
6636 }
6637 #endif /* 0 */
6638
6639 static void
6640 add_scroll_timeout (GtkTreeView *tree_view)
6641 {
6642   if (tree_view->priv->scroll_timeout == 0)
6643     {
6644       tree_view->priv->scroll_timeout =
6645         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6646     }
6647 }
6648
6649 static void
6650 remove_scroll_timeout (GtkTreeView *tree_view)
6651 {
6652   if (tree_view->priv->scroll_timeout != 0)
6653     {
6654       g_source_remove (tree_view->priv->scroll_timeout);
6655       tree_view->priv->scroll_timeout = 0;
6656     }
6657 }
6658
6659 static gboolean
6660 check_model_dnd (GtkTreeModel *model,
6661                  GType         required_iface,
6662                  const gchar  *signal)
6663 {
6664   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6665     {
6666       g_warning ("You must override the default '%s' handler "
6667                  "on GtkTreeView when using models that don't support "
6668                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6669                  "is to connect to '%s' and call "
6670                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6671                  "the default handler from running. Look at the source code "
6672                  "for the default handler in gtktreeview.c to get an idea what "
6673                  "your handler should do. (gtktreeview.c is in the GTK source "
6674                  "code.) If you're using GTK from a language other than C, "
6675                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6676                  signal, g_type_name (required_iface), signal);
6677       return FALSE;
6678     }
6679   else
6680     return TRUE;
6681 }
6682
6683 static void
6684 remove_open_timeout (GtkTreeView *tree_view)
6685 {
6686   if (tree_view->priv->open_dest_timeout != 0)
6687     {
6688       g_source_remove (tree_view->priv->open_dest_timeout);
6689       tree_view->priv->open_dest_timeout = 0;
6690     }
6691 }
6692
6693
6694 static gint
6695 open_row_timeout (gpointer data)
6696 {
6697   GtkTreeView *tree_view = data;
6698   GtkTreePath *dest_path = NULL;
6699   GtkTreeViewDropPosition pos;
6700   gboolean result = FALSE;
6701
6702   gtk_tree_view_get_drag_dest_row (tree_view,
6703                                    &dest_path,
6704                                    &pos);
6705
6706   if (dest_path &&
6707       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6708        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6709     {
6710       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6711       tree_view->priv->open_dest_timeout = 0;
6712
6713       gtk_tree_path_free (dest_path);
6714     }
6715   else
6716     {
6717       if (dest_path)
6718         gtk_tree_path_free (dest_path);
6719
6720       result = TRUE;
6721     }
6722
6723   return result;
6724 }
6725
6726 static gboolean
6727 scroll_row_timeout (gpointer data)
6728 {
6729   GtkTreeView *tree_view = data;
6730
6731   gtk_tree_view_vertical_autoscroll (tree_view);
6732
6733   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6734     gtk_tree_view_update_rubber_band (tree_view);
6735
6736   return TRUE;
6737 }
6738
6739 /* Returns TRUE if event should not be propagated to parent widgets */
6740 static gboolean
6741 set_destination_row (GtkTreeView    *tree_view,
6742                      GdkDragContext *context,
6743                      /* coordinates relative to the widget */
6744                      gint            x,
6745                      gint            y,
6746                      GdkDragAction  *suggested_action,
6747                      GdkAtom        *target)
6748 {
6749   GtkTreePath *path = NULL;
6750   GtkTreeViewDropPosition pos;
6751   GtkTreeViewDropPosition old_pos;
6752   TreeViewDragInfo *di;
6753   GtkWidget *widget;
6754   GtkTreePath *old_dest_path = NULL;
6755   gboolean can_drop = FALSE;
6756
6757   *suggested_action = 0;
6758   *target = GDK_NONE;
6759
6760   widget = GTK_WIDGET (tree_view);
6761
6762   di = get_info (tree_view);
6763
6764   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6765     {
6766       /* someone unset us as a drag dest, note that if
6767        * we return FALSE drag_leave isn't called
6768        */
6769
6770       gtk_tree_view_set_drag_dest_row (tree_view,
6771                                        NULL,
6772                                        GTK_TREE_VIEW_DROP_BEFORE);
6773
6774       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6775       remove_open_timeout (GTK_TREE_VIEW (widget));
6776
6777       return FALSE; /* no longer a drop site */
6778     }
6779
6780   *target = gtk_drag_dest_find_target (widget, context, di->dest_target_list);
6781   if (*target == GDK_NONE)
6782     {
6783       return FALSE;
6784     }
6785
6786   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6787                                           x, y,
6788                                           &path,
6789                                           &pos))
6790     {
6791       gint n_children;
6792       GtkTreeModel *model;
6793
6794       remove_open_timeout (tree_view);
6795
6796       /* the row got dropped on empty space, let's setup a special case
6797        */
6798
6799       if (path)
6800         gtk_tree_path_free (path);
6801
6802       model = gtk_tree_view_get_model (tree_view);
6803
6804       n_children = gtk_tree_model_iter_n_children (model, NULL);
6805       if (n_children)
6806         {
6807           pos = GTK_TREE_VIEW_DROP_AFTER;
6808           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6809         }
6810       else
6811         {
6812           pos = GTK_TREE_VIEW_DROP_BEFORE;
6813           path = gtk_tree_path_new_from_indices (0, -1);
6814         }
6815
6816       can_drop = TRUE;
6817
6818       goto out;
6819     }
6820
6821   g_assert (path);
6822
6823   /* If we left the current row's "open" zone, unset the timeout for
6824    * opening the row
6825    */
6826   gtk_tree_view_get_drag_dest_row (tree_view,
6827                                    &old_dest_path,
6828                                    &old_pos);
6829
6830   if (old_dest_path &&
6831       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6832        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6833          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6834     remove_open_timeout (tree_view);
6835
6836   if (old_dest_path)
6837     gtk_tree_path_free (old_dest_path);
6838
6839   if (TRUE /* FIXME if the location droppable predicate */)
6840     {
6841       can_drop = TRUE;
6842     }
6843
6844 out:
6845   if (can_drop)
6846     {
6847       GtkWidget *source_widget;
6848
6849       *suggested_action = context->suggested_action;
6850       source_widget = gtk_drag_get_source_widget (context);
6851
6852       if (source_widget == widget)
6853         {
6854           /* Default to MOVE, unless the user has
6855            * pressed ctrl or shift to affect available actions
6856            */
6857           if ((context->actions & GDK_ACTION_MOVE) != 0)
6858             *suggested_action = GDK_ACTION_MOVE;
6859         }
6860
6861       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6862                                        path, pos);
6863     }
6864   else
6865     {
6866       /* can't drop here */
6867       remove_open_timeout (tree_view);
6868
6869       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6870                                        NULL,
6871                                        GTK_TREE_VIEW_DROP_BEFORE);
6872     }
6873
6874   if (path)
6875     gtk_tree_path_free (path);
6876
6877   return TRUE;
6878 }
6879
6880 static GtkTreePath*
6881 get_logical_dest_row (GtkTreeView *tree_view,
6882                       gboolean    *path_down_mode,
6883                       gboolean    *drop_append_mode)
6884 {
6885   /* adjust path to point to the row the drop goes in front of */
6886   GtkTreePath *path = NULL;
6887   GtkTreeViewDropPosition pos;
6888
6889   g_return_val_if_fail (path_down_mode != NULL, NULL);
6890   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6891
6892   *path_down_mode = FALSE;
6893   *drop_append_mode = 0;
6894
6895   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6896
6897   if (path == NULL)
6898     return NULL;
6899
6900   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6901     ; /* do nothing */
6902   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6903            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6904     *path_down_mode = TRUE;
6905   else
6906     {
6907       GtkTreeIter iter;
6908       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6909
6910       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6911
6912       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6913           !gtk_tree_model_iter_next (model, &iter))
6914         *drop_append_mode = 1;
6915       else
6916         {
6917           *drop_append_mode = 0;
6918           gtk_tree_path_next (path);
6919         }
6920     }
6921
6922   return path;
6923 }
6924
6925 static gboolean
6926 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
6927                                         GdkEventMotion   *event)
6928 {
6929   GdkDragContext *context;
6930   TreeViewDragInfo *di;
6931   GtkTreePath *path = NULL;
6932   gint button;
6933   gint cell_x, cell_y;
6934   GtkTreeModel *model;
6935   gboolean retval = FALSE;
6936
6937   di = get_info (tree_view);
6938
6939   if (di == NULL || !di->source_set)
6940     goto out;
6941
6942   if (tree_view->priv->pressed_button < 0)
6943     goto out;
6944
6945   if (!gtk_drag_check_threshold (GTK_WIDGET (tree_view),
6946                                  tree_view->priv->press_start_x,
6947                                  tree_view->priv->press_start_y,
6948                                  event->x, event->y))
6949     goto out;
6950
6951   model = gtk_tree_view_get_model (tree_view);
6952
6953   if (model == NULL)
6954     goto out;
6955
6956   button = tree_view->priv->pressed_button;
6957   tree_view->priv->pressed_button = -1;
6958
6959   gtk_tree_view_get_path_at_pos (tree_view,
6960                                  tree_view->priv->press_start_x,
6961                                  tree_view->priv->press_start_y,
6962                                  &path,
6963                                  NULL,
6964                                  &cell_x,
6965                                  &cell_y);
6966
6967   if (path == NULL)
6968     goto out;
6969
6970   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
6971       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
6972                                            path))
6973     goto out;
6974
6975   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
6976     goto out;
6977
6978   /* Now we can begin the drag */
6979
6980   retval = TRUE;
6981
6982   context = gtk_drag_begin (GTK_WIDGET (tree_view),
6983                             di->source_target_list,
6984                             di->source_actions,
6985                             button,
6986                             (GdkEvent*)event);
6987
6988   set_source_row (context, model, path);
6989
6990  out:
6991   if (path)
6992     gtk_tree_path_free (path);
6993
6994   return retval;
6995 }
6996
6997
6998 static void
6999 gtk_tree_view_drag_begin (GtkWidget      *widget,
7000                           GdkDragContext *context)
7001 {
7002   GtkTreeView *tree_view;
7003   GtkTreePath *path = NULL;
7004   gint cell_x, cell_y;
7005   GdkPixmap *row_pix;
7006   TreeViewDragInfo *di;
7007
7008   tree_view = GTK_TREE_VIEW (widget);
7009
7010   /* if the user uses a custom DND source impl, we don't set the icon here */
7011   di = get_info (tree_view);
7012
7013   if (di == NULL || !di->source_set)
7014     return;
7015
7016   gtk_tree_view_get_path_at_pos (tree_view,
7017                                  tree_view->priv->press_start_x,
7018                                  tree_view->priv->press_start_y,
7019                                  &path,
7020                                  NULL,
7021                                  &cell_x,
7022                                  &cell_y);
7023
7024   g_return_if_fail (path != NULL);
7025
7026   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7027                                                 path);
7028
7029   gtk_drag_set_icon_pixmap (context,
7030                             gdk_drawable_get_colormap (row_pix),
7031                             row_pix,
7032                             NULL,
7033                             /* the + 1 is for the black border in the icon */
7034                             tree_view->priv->press_start_x + 1,
7035                             cell_y + 1);
7036
7037   g_object_unref (row_pix);
7038   gtk_tree_path_free (path);
7039 }
7040
7041 static void
7042 gtk_tree_view_drag_end (GtkWidget      *widget,
7043                         GdkDragContext *context)
7044 {
7045   /* do nothing */
7046 }
7047
7048 /* Default signal implementations for the drag signals */
7049 static void
7050 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7051                              GdkDragContext   *context,
7052                              GtkSelectionData *selection_data,
7053                              guint             info,
7054                              guint             time)
7055 {
7056   GtkTreeView *tree_view;
7057   GtkTreeModel *model;
7058   TreeViewDragInfo *di;
7059   GtkTreePath *source_row;
7060
7061   tree_view = GTK_TREE_VIEW (widget);
7062
7063   model = gtk_tree_view_get_model (tree_view);
7064
7065   if (model == NULL)
7066     return;
7067
7068   di = get_info (GTK_TREE_VIEW (widget));
7069
7070   if (di == NULL)
7071     return;
7072
7073   source_row = get_source_row (context);
7074
7075   if (source_row == NULL)
7076     return;
7077
7078   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7079    * any model; for DragSource models there are some other targets
7080    * we also support.
7081    */
7082
7083   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7084       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7085                                           source_row,
7086                                           selection_data))
7087     goto done;
7088
7089   /* If drag_data_get does nothing, try providing row data. */
7090   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7091     {
7092       gtk_tree_set_row_drag_data (selection_data,
7093                                   model,
7094                                   source_row);
7095     }
7096
7097  done:
7098   gtk_tree_path_free (source_row);
7099 }
7100
7101
7102 static void
7103 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7104                                 GdkDragContext *context)
7105 {
7106   TreeViewDragInfo *di;
7107   GtkTreeModel *model;
7108   GtkTreeView *tree_view;
7109   GtkTreePath *source_row;
7110
7111   tree_view = GTK_TREE_VIEW (widget);
7112   model = gtk_tree_view_get_model (tree_view);
7113
7114   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7115     return;
7116
7117   di = get_info (tree_view);
7118
7119   if (di == NULL)
7120     return;
7121
7122   source_row = get_source_row (context);
7123
7124   if (source_row == NULL)
7125     return;
7126
7127   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7128                                          source_row);
7129
7130   gtk_tree_path_free (source_row);
7131
7132   set_source_row (context, NULL, NULL);
7133 }
7134
7135 static void
7136 gtk_tree_view_drag_leave (GtkWidget      *widget,
7137                           GdkDragContext *context,
7138                           guint             time)
7139 {
7140   /* unset any highlight row */
7141   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7142                                    NULL,
7143                                    GTK_TREE_VIEW_DROP_BEFORE);
7144
7145   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7146   remove_open_timeout (GTK_TREE_VIEW (widget));
7147 }
7148
7149
7150 static gboolean
7151 gtk_tree_view_drag_motion (GtkWidget        *widget,
7152                            GdkDragContext   *context,
7153                            /* coordinates relative to the widget */
7154                            gint              x,
7155                            gint              y,
7156                            guint             time)
7157 {
7158   gboolean empty;
7159   GtkTreePath *path = NULL;
7160   GtkTreeViewDropPosition pos;
7161   GtkTreeView *tree_view;
7162   GdkDragAction suggested_action = 0;
7163   GdkAtom target;
7164
7165   tree_view = GTK_TREE_VIEW (widget);
7166
7167   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7168     return FALSE;
7169
7170   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7171
7172   /* we only know this *after* set_desination_row */
7173   empty = tree_view->priv->empty_view_drop;
7174
7175   if (path == NULL && !empty)
7176     {
7177       /* Can't drop here. */
7178       gdk_drag_status (context, 0, time);
7179     }
7180   else
7181     {
7182       if (tree_view->priv->open_dest_timeout == 0 &&
7183           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7184            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7185         {
7186           tree_view->priv->open_dest_timeout =
7187             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7188         }
7189       else
7190         {
7191           add_scroll_timeout (tree_view);
7192         }
7193
7194       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7195         {
7196           /* Request data so we can use the source row when
7197            * determining whether to accept the drop
7198            */
7199           set_status_pending (context, suggested_action);
7200           gtk_drag_get_data (widget, context, target, time);
7201         }
7202       else
7203         {
7204           set_status_pending (context, 0);
7205           gdk_drag_status (context, suggested_action, time);
7206         }
7207     }
7208
7209   if (path)
7210     gtk_tree_path_free (path);
7211
7212   return TRUE;
7213 }
7214
7215
7216 static gboolean
7217 gtk_tree_view_drag_drop (GtkWidget        *widget,
7218                          GdkDragContext   *context,
7219                          /* coordinates relative to the widget */
7220                          gint              x,
7221                          gint              y,
7222                          guint             time)
7223 {
7224   GtkTreeView *tree_view;
7225   GtkTreePath *path;
7226   GdkDragAction suggested_action = 0;
7227   GdkAtom target = GDK_NONE;
7228   TreeViewDragInfo *di;
7229   GtkTreeModel *model;
7230   gboolean path_down_mode;
7231   gboolean drop_append_mode;
7232
7233   tree_view = GTK_TREE_VIEW (widget);
7234
7235   model = gtk_tree_view_get_model (tree_view);
7236
7237   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7238   remove_open_timeout (GTK_TREE_VIEW (widget));
7239
7240   di = get_info (tree_view);
7241
7242   if (di == NULL)
7243     return FALSE;
7244
7245   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7246     return FALSE;
7247
7248   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7249     return FALSE;
7250
7251   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7252
7253   if (target != GDK_NONE && path != NULL)
7254     {
7255       /* in case a motion had requested drag data, change things so we
7256        * treat drag data receives as a drop.
7257        */
7258       set_status_pending (context, 0);
7259       set_dest_row (context, model, path,
7260                     path_down_mode, tree_view->priv->empty_view_drop,
7261                     drop_append_mode);
7262     }
7263
7264   if (path)
7265     gtk_tree_path_free (path);
7266
7267   /* Unset this thing */
7268   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7269                                    NULL,
7270                                    GTK_TREE_VIEW_DROP_BEFORE);
7271
7272   if (target != GDK_NONE)
7273     {
7274       gtk_drag_get_data (widget, context, target, time);
7275       return TRUE;
7276     }
7277   else
7278     return FALSE;
7279 }
7280
7281 static void
7282 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7283                                   GdkDragContext   *context,
7284                                   /* coordinates relative to the widget */
7285                                   gint              x,
7286                                   gint              y,
7287                                   GtkSelectionData *selection_data,
7288                                   guint             info,
7289                                   guint             time)
7290 {
7291   GtkTreePath *path;
7292   TreeViewDragInfo *di;
7293   gboolean accepted = FALSE;
7294   GtkTreeModel *model;
7295   GtkTreeView *tree_view;
7296   GtkTreePath *dest_row;
7297   GdkDragAction suggested_action;
7298   gboolean path_down_mode;
7299   gboolean drop_append_mode;
7300
7301   tree_view = GTK_TREE_VIEW (widget);
7302
7303   model = gtk_tree_view_get_model (tree_view);
7304
7305   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7306     return;
7307
7308   di = get_info (tree_view);
7309
7310   if (di == NULL)
7311     return;
7312
7313   suggested_action = get_status_pending (context);
7314
7315   if (suggested_action)
7316     {
7317       /* We are getting this data due to a request in drag_motion,
7318        * rather than due to a request in drag_drop, so we are just
7319        * supposed to call drag_status, not actually paste in the
7320        * data.
7321        */
7322       path = get_logical_dest_row (tree_view, &path_down_mode,
7323                                    &drop_append_mode);
7324
7325       if (path == NULL)
7326         suggested_action = 0;
7327       else if (path_down_mode)
7328         gtk_tree_path_down (path);
7329
7330       if (suggested_action)
7331         {
7332           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7333                                                      path,
7334                                                      selection_data))
7335             {
7336               if (path_down_mode)
7337                 {
7338                   path_down_mode = FALSE;
7339                   gtk_tree_path_up (path);
7340
7341                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7342                                                              path,
7343                                                              selection_data))
7344                     suggested_action = 0;
7345                 }
7346               else
7347                 suggested_action = 0;
7348             }
7349         }
7350
7351       gdk_drag_status (context, suggested_action, time);
7352
7353       if (path)
7354         gtk_tree_path_free (path);
7355
7356       /* If you can't drop, remove user drop indicator until the next motion */
7357       if (suggested_action == 0)
7358         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7359                                          NULL,
7360                                          GTK_TREE_VIEW_DROP_BEFORE);
7361
7362       return;
7363     }
7364
7365   dest_row = get_dest_row (context, &path_down_mode);
7366
7367   if (dest_row == NULL)
7368     return;
7369
7370   if (selection_data->length >= 0)
7371     {
7372       if (path_down_mode)
7373         {
7374           gtk_tree_path_down (dest_row);
7375           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7376                                                      dest_row, selection_data))
7377             gtk_tree_path_up (dest_row);
7378         }
7379     }
7380
7381   if (selection_data->length >= 0)
7382     {
7383       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7384                                                  dest_row,
7385                                                  selection_data))
7386         accepted = TRUE;
7387     }
7388
7389   gtk_drag_finish (context,
7390                    accepted,
7391                    (context->action == GDK_ACTION_MOVE),
7392                    time);
7393
7394   if (gtk_tree_path_get_depth (dest_row) == 1
7395       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7396     {
7397       /* special special case drag to "0", scroll to first item */
7398       if (!tree_view->priv->scroll_to_path)
7399         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7400     }
7401
7402   gtk_tree_path_free (dest_row);
7403
7404   /* drop dest_row */
7405   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7406 }
7407
7408
7409
7410 /* GtkContainer Methods
7411  */
7412
7413
7414 static void
7415 gtk_tree_view_remove (GtkContainer *container,
7416                       GtkWidget    *widget)
7417 {
7418   GtkTreeView *tree_view;
7419   GtkTreeViewChild *child = NULL;
7420   GList *tmp_list;
7421
7422   g_return_if_fail (GTK_IS_TREE_VIEW (container));
7423
7424   tree_view = GTK_TREE_VIEW (container);
7425
7426   tmp_list = tree_view->priv->children;
7427   while (tmp_list)
7428     {
7429       child = tmp_list->data;
7430       if (child->widget == widget)
7431         {
7432           gtk_widget_unparent (widget);
7433
7434           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7435           g_list_free_1 (tmp_list);
7436           g_free (child);
7437           return;
7438         }
7439
7440       tmp_list = tmp_list->next;
7441     }
7442
7443   tmp_list = tree_view->priv->columns;
7444
7445   while (tmp_list)
7446     {
7447       GtkTreeViewColumn *column;
7448       column = tmp_list->data;
7449       if (column->button == widget)
7450         {
7451           gtk_widget_unparent (widget);
7452           return;
7453         }
7454       tmp_list = tmp_list->next;
7455     }
7456 }
7457
7458 static void
7459 gtk_tree_view_forall (GtkContainer *container,
7460                       gboolean      include_internals,
7461                       GtkCallback   callback,
7462                       gpointer      callback_data)
7463 {
7464   GtkTreeView *tree_view;
7465   GtkTreeViewChild *child = NULL;
7466   GtkTreeViewColumn *column;
7467   GList *tmp_list;
7468
7469   g_return_if_fail (GTK_IS_TREE_VIEW (container));
7470   g_return_if_fail (callback != NULL);
7471
7472   tree_view = GTK_TREE_VIEW (container);
7473
7474   tmp_list = tree_view->priv->children;
7475   while (tmp_list)
7476     {
7477       child = tmp_list->data;
7478       tmp_list = tmp_list->next;
7479
7480       (* callback) (child->widget, callback_data);
7481     }
7482   if (include_internals == FALSE)
7483     return;
7484
7485   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7486     {
7487       column = tmp_list->data;
7488
7489       if (column->button)
7490         (* callback) (column->button, callback_data);
7491     }
7492 }
7493
7494 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7495  * cells. If so we draw one big row-spanning focus rectangle.
7496  */
7497 static gboolean
7498 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7499 {
7500   GList *list;
7501
7502   for (list = tree_view->priv->columns; list; list = list->next)
7503     {
7504       if (!((GtkTreeViewColumn *)list->data)->visible)
7505         continue;
7506       if (_gtk_tree_view_column_count_special_cells (list->data))
7507         return TRUE;
7508     }
7509
7510   return FALSE;
7511 }
7512
7513 static void
7514 column_sizing_notify (GObject    *object,
7515                       GParamSpec *pspec,
7516                       gpointer    data)
7517 {
7518   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7519
7520   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7521     /* disable fixed height mode */
7522     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7523 }
7524
7525 /**
7526  * gtk_tree_view_set_fixed_height_mode:
7527  * @tree_view: a #GtkTreeView
7528  * @enable: %TRUE to enable fixed height mode
7529  *
7530  * Enables or disables the fixed height mode of @tree_view.
7531  * Fixed height mode speeds up #GtkTreeView by assuming that all
7532  * rows have the same height.
7533  * Only enable this option if all rows are the same height and all
7534  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7535  *
7536  * Since: 2.6
7537  **/
7538 void
7539 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7540                                      gboolean     enable)
7541 {
7542   GList *l;
7543
7544   enable = enable != FALSE;
7545
7546   if (enable == tree_view->priv->fixed_height_mode)
7547     return;
7548
7549   if (!enable)
7550     {
7551       tree_view->priv->fixed_height_mode = 0;
7552       tree_view->priv->fixed_height = -1;
7553
7554       /* force a revalidation */
7555       install_presize_handler (tree_view);
7556     }
7557   else
7558     {
7559       /* make sure all columns are of type FIXED */
7560       for (l = tree_view->priv->columns; l; l = l->next)
7561         {
7562           GtkTreeViewColumn *c = l->data;
7563
7564           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7565         }
7566
7567       /* yes, we really have to do this is in a separate loop */
7568       for (l = tree_view->priv->columns; l; l = l->next)
7569         g_signal_connect (l->data, "notify::sizing",
7570                           G_CALLBACK (column_sizing_notify), tree_view);
7571
7572       tree_view->priv->fixed_height_mode = 1;
7573       tree_view->priv->fixed_height = -1;
7574
7575       if (tree_view->priv->tree)
7576         initialize_fixed_height_mode (tree_view);
7577     }
7578
7579   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7580 }
7581
7582 /**
7583  * gtk_tree_view_get_fixed_height_mode:
7584  * @tree_view: a #GtkTreeView
7585  *
7586  * Returns whether fixed height mode is turned on for @tree_view.
7587  *
7588  * Return value: %TRUE if @tree_view is in fixed height mode
7589  *
7590  * Since: 2.6
7591  **/
7592 gboolean
7593 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7594 {
7595   return tree_view->priv->fixed_height_mode;
7596 }
7597
7598 /* Returns TRUE if the focus is within the headers, after the focus operation is
7599  * done
7600  */
7601 static gboolean
7602 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7603                             GtkDirectionType  dir,
7604                             gboolean          clamp_column_visible)
7605 {
7606   GtkWidget *focus_child;
7607
7608   GList *last_column, *first_column;
7609   GList *tmp_list;
7610   gboolean rtl;
7611
7612   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7613     return FALSE;
7614
7615   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7616
7617   first_column = tree_view->priv->columns;
7618   while (first_column)
7619     {
7620       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7621           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7622           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7623            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7624         break;
7625       first_column = first_column->next;
7626     }
7627
7628   /* No headers are visible, or are focusable.  We can't focus in or out.
7629    */
7630   if (first_column == NULL)
7631     return FALSE;
7632
7633   last_column = g_list_last (tree_view->priv->columns);
7634   while (last_column)
7635     {
7636       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7637           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7638           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7639            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7640         break;
7641       last_column = last_column->prev;
7642     }
7643
7644
7645   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7646
7647   switch (dir)
7648     {
7649     case GTK_DIR_TAB_BACKWARD:
7650     case GTK_DIR_TAB_FORWARD:
7651     case GTK_DIR_UP:
7652     case GTK_DIR_DOWN:
7653       if (focus_child == NULL)
7654         {
7655           if (tree_view->priv->focus_column != NULL)
7656             focus_child = tree_view->priv->focus_column->button;
7657           else
7658             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7659           gtk_widget_grab_focus (focus_child);
7660           break;
7661         }
7662       return FALSE;
7663
7664     case GTK_DIR_LEFT:
7665     case GTK_DIR_RIGHT:
7666       if (focus_child == NULL)
7667         {
7668           if (tree_view->priv->focus_column != NULL)
7669             focus_child = tree_view->priv->focus_column->button;
7670           else if (dir == GTK_DIR_LEFT)
7671             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7672           else
7673             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7674           gtk_widget_grab_focus (focus_child);
7675           break;
7676         }
7677
7678       if (gtk_widget_child_focus (focus_child, dir))
7679         {
7680           /* The focus moves inside the button. */
7681           /* This is probably a great example of bad UI */
7682           break;
7683         }
7684
7685       /* We need to move the focus among the row of buttons. */
7686       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7687         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7688           break;
7689
7690       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7691           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7692         {
7693           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7694           break;
7695         }
7696
7697       while (tmp_list)
7698         {
7699           GtkTreeViewColumn *column;
7700
7701           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7702             tmp_list = tmp_list->next;
7703           else
7704             tmp_list = tmp_list->prev;
7705
7706           if (tmp_list == NULL)
7707             {
7708               g_warning ("Internal button not found");
7709               break;
7710             }
7711           column = tmp_list->data;
7712           if (column->button &&
7713               column->visible &&
7714               GTK_WIDGET_CAN_FOCUS (column->button))
7715             {
7716               focus_child = column->button;
7717               gtk_widget_grab_focus (column->button);
7718               break;
7719             }
7720         }
7721       break;
7722     default:
7723       g_assert_not_reached ();
7724       break;
7725     }
7726
7727   /* if focus child is non-null, we assume it's been set to the current focus child
7728    */
7729   if (focus_child)
7730     {
7731       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7732         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7733           {
7734             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7735             break;
7736           }
7737
7738       if (clamp_column_visible)
7739         {
7740           gtk_tree_view_clamp_column_visible (tree_view,
7741                                               tree_view->priv->focus_column,
7742                                               FALSE);
7743         }
7744     }
7745
7746   return (focus_child != NULL);
7747 }
7748
7749 static gint
7750 gtk_tree_view_focus (GtkWidget        *widget,
7751                      GtkDirectionType  direction)
7752 {
7753   GtkTreeView *tree_view;
7754   GtkWidget *focus_child;
7755   GtkContainer *container;
7756
7757   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
7758   g_return_val_if_fail (GTK_WIDGET_VISIBLE (widget), FALSE);
7759
7760   container = GTK_CONTAINER (widget);
7761   tree_view = GTK_TREE_VIEW (widget);
7762
7763   if (!GTK_WIDGET_IS_SENSITIVE (container))
7764     return FALSE;
7765
7766   focus_child = container->focus_child;
7767
7768   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7769   /* Case 1.  Headers currently have focus. */
7770   if (focus_child)
7771     {
7772       switch (direction)
7773         {
7774         case GTK_DIR_LEFT:
7775         case GTK_DIR_RIGHT:
7776           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7777           return TRUE;
7778         case GTK_DIR_TAB_BACKWARD:
7779         case GTK_DIR_UP:
7780           return FALSE;
7781         case GTK_DIR_TAB_FORWARD:
7782         case GTK_DIR_DOWN:
7783           gtk_widget_grab_focus (widget);
7784           return TRUE;
7785         default:
7786           g_assert_not_reached ();
7787           return FALSE;
7788         }
7789     }
7790
7791   /* Case 2. We don't have focus at all. */
7792   if (!GTK_WIDGET_HAS_FOCUS (container))
7793     {
7794       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7795         gtk_widget_grab_focus (widget);
7796       return TRUE;
7797     }
7798
7799   /* Case 3. We have focus already. */
7800   if (direction == GTK_DIR_TAB_BACKWARD)
7801     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7802   else if (direction == GTK_DIR_TAB_FORWARD)
7803     return FALSE;
7804
7805   /* Other directions caught by the keybindings */
7806   gtk_widget_grab_focus (widget);
7807   return TRUE;
7808 }
7809
7810 static void
7811 gtk_tree_view_grab_focus (GtkWidget *widget)
7812 {
7813   (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus) (widget);
7814
7815   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7816 }
7817
7818 static void
7819 gtk_tree_view_style_set (GtkWidget *widget,
7820                          GtkStyle *previous_style)
7821 {
7822   GtkTreeView *tree_view;
7823   GList *list;
7824   GtkTreeViewColumn *column;
7825
7826   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
7827
7828   tree_view = GTK_TREE_VIEW (widget);
7829
7830   if (GTK_WIDGET_REALIZED (widget))
7831     {
7832       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7833       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7834       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7835
7836       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7837       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7838     }
7839
7840   gtk_widget_style_get (widget,
7841                         "expander-size", &tree_view->priv->expander_size,
7842                         NULL);
7843   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7844
7845   for (list = tree_view->priv->columns; list; list = list->next)
7846     {
7847       column = list->data;
7848       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7849     }
7850
7851   tree_view->priv->fixed_height = -1;
7852   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7853
7854   gtk_widget_queue_resize (widget);
7855 }
7856
7857
7858 static void
7859 gtk_tree_view_set_focus_child (GtkContainer *container,
7860                                GtkWidget    *child)
7861 {
7862   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7863   GList *list;
7864
7865   for (list = tree_view->priv->columns; list; list = list->next)
7866     {
7867       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7868         {
7869           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7870           break;
7871         }
7872     }
7873
7874   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7875 }
7876
7877 static void
7878 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7879                                GtkAdjustment *hadj,
7880                                GtkAdjustment *vadj)
7881 {
7882   gboolean need_adjust = FALSE;
7883
7884   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
7885
7886   if (hadj)
7887     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
7888   else
7889     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7890   if (vadj)
7891     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
7892   else
7893     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7894
7895   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
7896     {
7897       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
7898                                             gtk_tree_view_adjustment_changed,
7899                                             tree_view);
7900       g_object_unref (tree_view->priv->hadjustment);
7901     }
7902
7903   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
7904     {
7905       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
7906                                             gtk_tree_view_adjustment_changed,
7907                                             tree_view);
7908       g_object_unref (tree_view->priv->vadjustment);
7909     }
7910
7911   if (tree_view->priv->hadjustment != hadj)
7912     {
7913       tree_view->priv->hadjustment = hadj;
7914       g_object_ref_sink (tree_view->priv->hadjustment);
7915
7916       g_signal_connect (tree_view->priv->hadjustment, "value_changed",
7917                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7918                         tree_view);
7919       need_adjust = TRUE;
7920     }
7921
7922   if (tree_view->priv->vadjustment != vadj)
7923     {
7924       tree_view->priv->vadjustment = vadj;
7925       g_object_ref_sink (tree_view->priv->vadjustment);
7926
7927       g_signal_connect (tree_view->priv->vadjustment, "value_changed",
7928                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7929                         tree_view);
7930       need_adjust = TRUE;
7931     }
7932
7933   if (need_adjust)
7934     gtk_tree_view_adjustment_changed (NULL, tree_view);
7935 }
7936
7937
7938 static gboolean
7939 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
7940                                 GtkMovementStep    step,
7941                                 gint               count)
7942 {
7943   GdkModifierType state;
7944
7945   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
7946   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
7947                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
7948                         step == GTK_MOVEMENT_DISPLAY_LINES ||
7949                         step == GTK_MOVEMENT_PAGES ||
7950                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
7951
7952   if (tree_view->priv->tree == NULL)
7953     return FALSE;
7954   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
7955     return FALSE;
7956
7957   gtk_tree_view_stop_editing (tree_view, FALSE);
7958   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
7959   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
7960
7961   if (gtk_get_current_event_state (&state))
7962     {
7963       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
7964         tree_view->priv->ctrl_pressed = TRUE;
7965       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
7966         tree_view->priv->shift_pressed = TRUE;
7967     }
7968   /* else we assume not pressed */
7969
7970   switch (step)
7971     {
7972       /* currently we make no distinction.  When we go bi-di, we need to */
7973     case GTK_MOVEMENT_LOGICAL_POSITIONS:
7974     case GTK_MOVEMENT_VISUAL_POSITIONS:
7975       gtk_tree_view_move_cursor_left_right (tree_view, count);
7976       break;
7977     case GTK_MOVEMENT_DISPLAY_LINES:
7978       gtk_tree_view_move_cursor_up_down (tree_view, count);
7979       break;
7980     case GTK_MOVEMENT_PAGES:
7981       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
7982       break;
7983     case GTK_MOVEMENT_BUFFER_ENDS:
7984       gtk_tree_view_move_cursor_start_end (tree_view, count);
7985       break;
7986     default:
7987       g_assert_not_reached ();
7988     }
7989
7990   tree_view->priv->ctrl_pressed = FALSE;
7991   tree_view->priv->shift_pressed = FALSE;
7992
7993   return TRUE;
7994 }
7995
7996 static void
7997 gtk_tree_view_put (GtkTreeView *tree_view,
7998                    GtkWidget   *child_widget,
7999                    /* in tree coordinates */
8000                    gint         x,
8001                    gint         y,
8002                    gint         width,
8003                    gint         height)
8004 {
8005   GtkTreeViewChild *child;
8006
8007   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8008   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8009
8010   child = g_new (GtkTreeViewChild, 1);
8011
8012   child->widget = child_widget;
8013   child->x = x;
8014   child->y = y;
8015   child->width = width;
8016   child->height = height;
8017
8018   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8019
8020   if (GTK_WIDGET_REALIZED (tree_view))
8021     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8022
8023   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8024 }
8025
8026 void
8027 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8028                                   GtkWidget   *widget,
8029                                   /* in tree coordinates */
8030                                   gint         x,
8031                                   gint         y,
8032                                   gint         width,
8033                                   gint         height)
8034 {
8035   GtkTreeViewChild *child = NULL;
8036   GList *list;
8037   GdkRectangle allocation;
8038
8039   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8040   g_return_if_fail (GTK_IS_WIDGET (widget));
8041
8042   for (list = tree_view->priv->children; list; list = list->next)
8043     {
8044       if (((GtkTreeViewChild *)list->data)->widget == widget)
8045         {
8046           child = list->data;
8047           break;
8048         }
8049     }
8050   if (child == NULL)
8051     return;
8052
8053   allocation.x = child->x = x;
8054   allocation.y = child->y = y;
8055   allocation.width = child->width = width;
8056   allocation.height = child->height = height;
8057
8058   if (GTK_WIDGET_REALIZED (widget))
8059     gtk_widget_size_allocate (widget, &allocation);
8060 }
8061
8062
8063 /* TreeModel Callbacks
8064  */
8065
8066 static void
8067 gtk_tree_view_row_changed (GtkTreeModel *model,
8068                            GtkTreePath  *path,
8069                            GtkTreeIter  *iter,
8070                            gpointer      data)
8071 {
8072   GtkTreeView *tree_view = (GtkTreeView *)data;
8073   GtkRBTree *tree;
8074   GtkRBNode *node;
8075   gboolean free_path = FALSE;
8076   GList *list;
8077   GtkTreePath *cursor_path;
8078
8079   g_return_if_fail (path != NULL || iter != NULL);
8080
8081   if (tree_view->priv->cursor != NULL)
8082     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8083   else
8084     cursor_path = NULL;
8085
8086   if (tree_view->priv->edited_column &&
8087       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8088     gtk_tree_view_stop_editing (tree_view, TRUE);
8089
8090   if (cursor_path != NULL)
8091     gtk_tree_path_free (cursor_path);
8092
8093   if (path == NULL)
8094     {
8095       path = gtk_tree_model_get_path (model, iter);
8096       free_path = TRUE;
8097     }
8098   else if (iter == NULL)
8099     gtk_tree_model_get_iter (model, iter, path);
8100
8101   if (_gtk_tree_view_find_node (tree_view,
8102                                 path,
8103                                 &tree,
8104                                 &node))
8105     /* We aren't actually showing the node */
8106     goto done;
8107
8108   if (tree == NULL)
8109     goto done;
8110
8111   if (tree_view->priv->fixed_height_mode
8112       && tree_view->priv->fixed_height >= 0)
8113     {
8114       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8115       if (GTK_WIDGET_REALIZED (tree_view))
8116         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8117     }
8118   else
8119     {
8120       _gtk_rbtree_node_mark_invalid (tree, node);
8121       for (list = tree_view->priv->columns; list; list = list->next)
8122         {
8123           GtkTreeViewColumn *column;
8124
8125           column = list->data;
8126           if (! column->visible)
8127             continue;
8128
8129           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8130             {
8131               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8132             }
8133         }
8134     }
8135
8136  done:
8137   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8138     install_presize_handler (tree_view);
8139   if (free_path)
8140     gtk_tree_path_free (path);
8141 }
8142
8143 static void
8144 gtk_tree_view_row_inserted (GtkTreeModel *model,
8145                             GtkTreePath  *path,
8146                             GtkTreeIter  *iter,
8147                             gpointer      data)
8148 {
8149   GtkTreeView *tree_view = (GtkTreeView *) data;
8150   gint *indices;
8151   GtkRBTree *tmptree, *tree;
8152   GtkRBNode *tmpnode = NULL;
8153   gint depth;
8154   gint i = 0;
8155   gint height;
8156   gboolean free_path = FALSE;
8157   gboolean node_visible = TRUE;
8158
8159   g_return_if_fail (path != NULL || iter != NULL);
8160
8161   if (tree_view->priv->fixed_height_mode
8162       && tree_view->priv->fixed_height >= 0)
8163     height = tree_view->priv->fixed_height;
8164   else
8165     height = 0;
8166
8167   if (path == NULL)
8168     {
8169       path = gtk_tree_model_get_path (model, iter);
8170       free_path = TRUE;
8171     }
8172   else if (iter == NULL)
8173     gtk_tree_model_get_iter (model, iter, path);
8174
8175   if (tree_view->priv->tree == NULL)
8176     tree_view->priv->tree = _gtk_rbtree_new ();
8177
8178   tmptree = tree = tree_view->priv->tree;
8179
8180   /* Update all row-references */
8181   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8182   depth = gtk_tree_path_get_depth (path);
8183   indices = gtk_tree_path_get_indices (path);
8184
8185   /* First, find the parent tree */
8186   while (i < depth - 1)
8187     {
8188       if (tmptree == NULL)
8189         {
8190           /* We aren't showing the node */
8191           node_visible = FALSE;
8192           goto done;
8193         }
8194
8195       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8196       if (tmpnode == NULL)
8197         {
8198           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8199                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8200                      "before the parent was inserted.");
8201           goto done;
8202         }
8203       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8204         {
8205           /* FIXME enforce correct behavior on model, probably */
8206           /* In theory, the model should have emitted has_child_toggled here.  We
8207            * try to catch it anyway, just to be safe, in case the model hasn't.
8208            */
8209           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8210                                                            tree,
8211                                                            tmpnode);
8212           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8213           gtk_tree_path_free (tmppath);
8214           goto done;
8215         }
8216
8217       tmptree = tmpnode->children;
8218       tree = tmptree;
8219       i++;
8220     }
8221
8222   if (tree == NULL)
8223     {
8224       node_visible = FALSE;
8225       goto done;
8226     }
8227
8228   /* ref the node */
8229   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8230   if (indices[depth - 1] == 0)
8231     {
8232       tmpnode = _gtk_rbtree_find_count (tree, 1);
8233       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8234     }
8235   else
8236     {
8237       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8238       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8239     }
8240
8241  done:
8242   if (height > 0)
8243     {
8244       if (tree)
8245         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8246
8247       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8248         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8249       else
8250         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8251     }
8252   else
8253     install_presize_handler (tree_view);
8254   if (free_path)
8255     gtk_tree_path_free (path);
8256 }
8257
8258 static void
8259 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8260                                      GtkTreePath  *path,
8261                                      GtkTreeIter  *iter,
8262                                      gpointer      data)
8263 {
8264   GtkTreeView *tree_view = (GtkTreeView *)data;
8265   GtkTreeIter real_iter;
8266   gboolean has_child;
8267   GtkRBTree *tree;
8268   GtkRBNode *node;
8269   gboolean free_path = FALSE;
8270
8271   g_return_if_fail (path != NULL || iter != NULL);
8272
8273   if (iter)
8274     real_iter = *iter;
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, &real_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   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8295   /* Sanity check.
8296    */
8297   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8298     goto done;
8299
8300   if (has_child)
8301     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8302   else
8303     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8304
8305   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8306     {
8307       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8308       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8309         {
8310           GList *list;
8311
8312           for (list = tree_view->priv->columns; list; list = list->next)
8313             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8314               {
8315                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8316                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8317                 break;
8318               }
8319         }
8320       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8321     }
8322   else
8323     {
8324       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8325     }
8326
8327  done:
8328   if (free_path)
8329     gtk_tree_path_free (path);
8330 }
8331
8332 static void
8333 count_children_helper (GtkRBTree *tree,
8334                        GtkRBNode *node,
8335                        gpointer   data)
8336 {
8337   if (node->children)
8338     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8339   (*((gint *)data))++;
8340 }
8341
8342 static void
8343 check_selection_helper (GtkRBTree *tree,
8344                         GtkRBNode *node,
8345                         gpointer   data)
8346 {
8347   gint *value = (gint *)data;
8348
8349   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8350
8351   if (node->children && !*value)
8352     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8353 }
8354
8355 static void
8356 gtk_tree_view_row_deleted (GtkTreeModel *model,
8357                            GtkTreePath  *path,
8358                            gpointer      data)
8359 {
8360   GtkTreeView *tree_view = (GtkTreeView *)data;
8361   GtkRBTree *tree;
8362   GtkRBNode *node;
8363   GList *list;
8364   gint selection_changed = FALSE;
8365
8366   g_return_if_fail (path != NULL);
8367
8368   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8369
8370   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8371     return;
8372
8373   if (tree == NULL)
8374     return;
8375
8376   /* check if the selection has been changed */
8377   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8378                         check_selection_helper, &selection_changed);
8379
8380   for (list = tree_view->priv->columns; list; list = list->next)
8381     if (((GtkTreeViewColumn *)list->data)->visible &&
8382         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8383       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8384
8385   /* Ensure we don't have a dangling pointer to a dead node */
8386   ensure_unprelighted (tree_view);
8387
8388   /* Cancel editting if we've started */
8389   gtk_tree_view_stop_editing (tree_view, TRUE);
8390
8391   /* If we have a node expanded/collapsed timeout, remove it */
8392   if (tree_view->priv->expand_collapse_timeout != 0)
8393     {
8394       g_source_remove (tree_view->priv->expand_collapse_timeout);
8395       tree_view->priv->expand_collapse_timeout = 0;
8396
8397       /* Reset node */
8398       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
8399       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
8400       tree_view->priv->expanded_collapsed_node = NULL;
8401     }
8402
8403   if (tree_view->priv->destroy_count_func)
8404     {
8405       gint child_count = 0;
8406       if (node->children)
8407         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8408       (* tree_view->priv->destroy_count_func) (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8409     }
8410
8411   if (tree->root->count == 1)
8412     {
8413       if (tree_view->priv->tree == tree)
8414         tree_view->priv->tree = NULL;
8415
8416       _gtk_rbtree_remove (tree);
8417     }
8418   else
8419     {
8420       _gtk_rbtree_remove_node (tree, node);
8421     }
8422
8423   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8424     {
8425       gtk_tree_row_reference_free (tree_view->priv->top_row);
8426       tree_view->priv->top_row = NULL;
8427     }
8428
8429   install_scroll_sync_handler (tree_view);
8430
8431   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8432
8433   if (selection_changed)
8434     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8435 }
8436
8437 static void
8438 cancel_arrow_animation (GtkTreeView *tree_view)
8439 {
8440   if (tree_view->priv->expand_collapse_timeout)
8441     {
8442       while (do_expand_collapse (tree_view));
8443
8444       g_source_remove (tree_view->priv->expand_collapse_timeout);
8445       tree_view->priv->expand_collapse_timeout = 0;
8446     }
8447 }
8448
8449 static void
8450 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8451                               GtkTreePath  *parent,
8452                               GtkTreeIter  *iter,
8453                               gint         *new_order,
8454                               gpointer      data)
8455 {
8456   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8457   GtkRBTree *tree;
8458   GtkRBNode *node;
8459   gint len;
8460
8461   len = gtk_tree_model_iter_n_children (model, iter);
8462
8463   if (len < 2)
8464     return;
8465
8466   gtk_tree_row_reference_reordered (G_OBJECT (data),
8467                                     parent,
8468                                     iter,
8469                                     new_order);
8470
8471   if (_gtk_tree_view_find_node (tree_view,
8472                                 parent,
8473                                 &tree,
8474                                 &node))
8475     return;
8476
8477   /* We need to special case the parent path */
8478   if (tree == NULL)
8479     tree = tree_view->priv->tree;
8480   else
8481     tree = node->children;
8482
8483   if (tree == NULL)
8484     return;
8485
8486   if (tree_view->priv->edited_column)
8487     gtk_tree_view_stop_editing (tree_view, TRUE);
8488
8489   /* we need to be unprelighted */
8490   ensure_unprelighted (tree_view);
8491
8492   /* clear the timeout */
8493   cancel_arrow_animation (tree_view);
8494
8495   _gtk_rbtree_reorder (tree, new_order, len);
8496
8497   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8498
8499   gtk_tree_view_dy_to_top_row (tree_view);
8500 }
8501
8502
8503 /* Internal tree functions
8504  */
8505
8506
8507 static void
8508 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8509                                      GtkRBTree         *tree,
8510                                      GtkTreeViewColumn *column,
8511                                      gint              *x1,
8512                                      gint              *x2)
8513 {
8514   GtkTreeViewColumn *tmp_column = NULL;
8515   gint total_width;
8516   GList *list;
8517   gboolean rtl;
8518
8519   if (x1)
8520     *x1 = 0;
8521
8522   if (x2)
8523     *x2 = 0;
8524
8525   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8526
8527   total_width = 0;
8528   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8529        list;
8530        list = (rtl ? list->prev : list->next))
8531     {
8532       tmp_column = list->data;
8533
8534       if (tmp_column == column)
8535         break;
8536
8537       if (tmp_column->visible)
8538         total_width += tmp_column->width;
8539     }
8540
8541   if (tmp_column != column)
8542     {
8543       g_warning (G_STRLOC": passed-in column isn't in the tree");
8544       return;
8545     }
8546
8547   if (x1)
8548     *x1 = total_width;
8549
8550   if (x2)
8551     {
8552       if (column->visible)
8553         *x2 = total_width + column->width;
8554       else
8555         *x2 = total_width; /* width of 0 */
8556     }
8557 }
8558 static void
8559 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8560                                 GtkRBTree   *tree,
8561                                 gint        *x1,
8562                                 gint        *x2)
8563 {
8564   gint x_offset = 0;
8565   GList *list;
8566   GtkTreeViewColumn *tmp_column = NULL;
8567   gint total_width;
8568   gboolean indent_expanders;
8569   gboolean rtl;
8570
8571   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8572
8573   total_width = 0;
8574   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8575        list;
8576        list = (rtl ? list->prev : list->next))
8577     {
8578       tmp_column = list->data;
8579
8580       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8581         {
8582           if (rtl)
8583             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8584           else
8585             x_offset = total_width;
8586           break;
8587         }
8588
8589       if (tmp_column->visible)
8590         total_width += tmp_column->width;
8591     }
8592
8593   gtk_widget_style_get (GTK_WIDGET (tree_view),
8594                         "indent-expanders", &indent_expanders,
8595                         NULL);
8596
8597   if (indent_expanders)
8598     {
8599       if (rtl)
8600         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8601       else
8602         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8603     }
8604
8605   *x1 = x_offset;
8606
8607   if (tmp_column && tmp_column->visible)
8608     /* +1 because x2 isn't included in the range. */
8609     *x2 = *x1 + tree_view->priv->expander_size + 1;
8610   else
8611     *x2 = *x1;
8612 }
8613
8614 static void
8615 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8616                           GtkRBTree   *tree,
8617                           GtkTreeIter *iter,
8618                           gint         depth,
8619                           gboolean     recurse)
8620 {
8621   GtkRBNode *temp = NULL;
8622   GtkTreePath *path = NULL;
8623   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8624
8625   do
8626     {
8627       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8628       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8629
8630       if (tree_view->priv->fixed_height > 0)
8631         {
8632           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8633             {
8634               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8635               _gtk_rbtree_node_mark_valid (tree, temp);
8636             }
8637         }
8638
8639       if (is_list)
8640         continue;
8641
8642       if (recurse)
8643         {
8644           GtkTreeIter child;
8645
8646           if (!path)
8647             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8648           else
8649             gtk_tree_path_next (path);
8650
8651           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8652             {
8653               gboolean expand;
8654
8655               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
8656
8657               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8658                   && !expand)
8659                 {
8660                   temp->children = _gtk_rbtree_new ();
8661                   temp->children->parent_tree = tree;
8662                   temp->children->parent_node = temp;
8663                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8664                 }
8665             }
8666         }
8667
8668       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8669         {
8670           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8671             temp->flags ^= GTK_RBNODE_IS_PARENT;
8672         }
8673     }
8674   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8675
8676   if (path)
8677     gtk_tree_path_free (path);
8678 }
8679
8680 /* If height is non-NULL, then we set it to be the new height.  if it's all
8681  * dirty, then height is -1.  We know we'll remeasure dirty rows, anyways.
8682  */
8683 static gboolean
8684 gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
8685                                    GtkTreeIter *iter,
8686                                    gint         depth,
8687                                    gint        *height,
8688                                    GtkRBNode   *node)
8689 {
8690   GtkTreeViewColumn *column;
8691   GList *list;
8692   gboolean retval = FALSE;
8693   gint tmpheight;
8694   gint horizontal_separator;
8695
8696   gtk_widget_style_get (GTK_WIDGET (tree_view),
8697                         "horizontal-separator", &horizontal_separator,
8698                         NULL);
8699
8700   if (height)
8701     *height = -1;
8702
8703   for (list = tree_view->priv->columns; list; list = list->next)
8704     {
8705       gint width;
8706       column = list->data;
8707       if (column->dirty == TRUE)
8708         continue;
8709       if (height == NULL && column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
8710         continue;
8711       if (!column->visible)
8712         continue;
8713
8714       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
8715                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
8716                                                node->children?TRUE:FALSE);
8717
8718       if (height)
8719         {
8720           gtk_tree_view_column_cell_get_size (column,
8721                                               NULL, NULL, NULL,
8722                                               &width, &tmpheight);
8723           *height = MAX (*height, tmpheight);
8724         }
8725       else
8726         {
8727           gtk_tree_view_column_cell_get_size (column,
8728                                               NULL, NULL, NULL,
8729                                               &width, NULL);
8730         }
8731
8732       if (gtk_tree_view_is_expander_column (tree_view, column))
8733         {
8734           int tmp = 0;
8735
8736           tmp = horizontal_separator + width + (depth - 1) * tree_view->priv->level_indentation;
8737           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
8738             tmp += depth * tree_view->priv->expander_size;
8739
8740           if (tmp > column->requested_width)
8741             {
8742               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8743               retval = TRUE;
8744             }
8745         }
8746       else
8747         {
8748           if (horizontal_separator + width > column->requested_width)
8749             {
8750               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8751               retval = TRUE;
8752             }
8753         }
8754     }
8755
8756   return retval;
8757 }
8758
8759 static void
8760 gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
8761                               GtkRBTree   *tree,
8762                               GtkTreeIter *iter,
8763                               gint         depth)
8764 {
8765   GtkRBNode *temp = tree->root;
8766   GtkTreeViewColumn *column;
8767   GList *list;
8768   GtkTreeIter child;
8769   gboolean is_all_dirty;
8770
8771   TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
8772
8773   while (temp->left != tree->nil)
8774     temp = temp->left;
8775
8776   do
8777     {
8778       TREE_VIEW_INTERNAL_ASSERT_VOID (temp != NULL);
8779       is_all_dirty = TRUE;
8780       for (list = tree_view->priv->columns; list; list = list->next)
8781         {
8782           column = list->data;
8783           if (column->dirty == FALSE)
8784             {
8785               is_all_dirty = FALSE;
8786               break;
8787             }
8788         }
8789
8790       if (is_all_dirty)
8791         return;
8792
8793       gtk_tree_view_discover_dirty_iter (tree_view,
8794                                          iter,
8795                                          depth,
8796                                          NULL,
8797                                          temp);
8798       if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
8799           temp->children != NULL)
8800         gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
8801       temp = _gtk_rbtree_next (tree, temp);
8802     }
8803   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8804 }
8805
8806
8807 /* Make sure the node is visible vertically */
8808 static void
8809 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8810                                   GtkRBTree   *tree,
8811                                   GtkRBNode   *node)
8812 {
8813   gint node_dy, height;
8814   GtkTreePath *path = NULL;
8815
8816   if (!GTK_WIDGET_REALIZED (tree_view))
8817     return;
8818
8819   /* just return if the node is visible, avoiding a costly expose */
8820   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8821   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8822   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8823       && node_dy >= tree_view->priv->vadjustment->value
8824       && node_dy + height <= (tree_view->priv->vadjustment->value
8825                               + tree_view->priv->vadjustment->page_size))
8826     return;
8827
8828   path = _gtk_tree_view_find_path (tree_view, tree, node);
8829   if (path)
8830     {
8831       /* We process updates because we want to clear old selected items when we scroll.
8832        * if this is removed, we get a "selection streak" at the bottom. */
8833       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8834       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8835       gtk_tree_path_free (path);
8836     }
8837 }
8838
8839 static void
8840 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8841                                     GtkTreeViewColumn *column,
8842                                     gboolean           focus_to_cell)
8843 {
8844   gint x, width;
8845
8846   if (column == NULL)
8847     return;
8848
8849   x = column->button->allocation.x;
8850   width = column->button->allocation.width;
8851
8852   if (width > tree_view->priv->hadjustment->page_size)
8853     {
8854       /* The column is larger than the horizontal page size.  If the
8855        * column has cells which can be focussed individually, then we make
8856        * sure the cell which gets focus is fully visible (if even the
8857        * focus cell is bigger than the page size, we make sure the
8858        * left-hand side of the cell is visible).
8859        *
8860        * If the column does not have those so-called special cells, we
8861        * make sure the left-hand side of the column is visible.
8862        */
8863
8864       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8865         {
8866           GtkTreePath *cursor_path;
8867           GdkRectangle background_area, cell_area, focus_area;
8868
8869           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8870
8871           gtk_tree_view_get_cell_area (tree_view,
8872                                        cursor_path, column, &cell_area);
8873           gtk_tree_view_get_background_area (tree_view,
8874                                              cursor_path, column,
8875                                              &background_area);
8876
8877           gtk_tree_path_free (cursor_path);
8878
8879           _gtk_tree_view_column_get_focus_area (column,
8880                                                 &background_area,
8881                                                 &cell_area,
8882                                                 &focus_area);
8883
8884           x = focus_area.x;
8885           width = focus_area.width;
8886
8887           if (width < tree_view->priv->hadjustment->page_size)
8888             {
8889               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8890                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8891                                           x + width - tree_view->priv->hadjustment->page_size);
8892               else if (tree_view->priv->hadjustment->value > x)
8893                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8894             }
8895         }
8896
8897       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8898                                 CLAMP (x,
8899                                        tree_view->priv->hadjustment->lower,
8900                                        tree_view->priv->hadjustment->upper
8901                                        - tree_view->priv->hadjustment->page_size));
8902     }
8903   else
8904     {
8905       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8906           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8907                                     x + width - tree_view->priv->hadjustment->page_size);
8908       else if (tree_view->priv->hadjustment->value > x)
8909         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8910   }
8911 }
8912
8913 /* This function could be more efficient.  I'll optimize it if profiling seems
8914  * to imply that it is important */
8915 GtkTreePath *
8916 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8917                           GtkRBTree   *tree,
8918                           GtkRBNode   *node)
8919 {
8920   GtkTreePath *path;
8921   GtkRBTree *tmp_tree;
8922   GtkRBNode *tmp_node, *last;
8923   gint count;
8924
8925   path = gtk_tree_path_new ();
8926
8927   g_return_val_if_fail (node != NULL, path);
8928   g_return_val_if_fail (node != tree->nil, path);
8929
8930   count = 1 + node->left->count;
8931
8932   last = node;
8933   tmp_node = node->parent;
8934   tmp_tree = tree;
8935   while (tmp_tree)
8936     {
8937       while (tmp_node != tmp_tree->nil)
8938         {
8939           if (tmp_node->right == last)
8940             count += 1 + tmp_node->left->count;
8941           last = tmp_node;
8942           tmp_node = tmp_node->parent;
8943         }
8944       gtk_tree_path_prepend_index (path, count - 1);
8945       last = tmp_tree->parent_node;
8946       tmp_tree = tmp_tree->parent_tree;
8947       if (last)
8948         {
8949           count = 1 + last->left->count;
8950           tmp_node = last->parent;
8951         }
8952     }
8953   return path;
8954 }
8955
8956 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8957  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8958  * both set to NULL.
8959  */
8960 gboolean
8961 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
8962                           GtkTreePath  *path,
8963                           GtkRBTree   **tree,
8964                           GtkRBNode   **node)
8965 {
8966   GtkRBNode *tmpnode = NULL;
8967   GtkRBTree *tmptree = tree_view->priv->tree;
8968   gint *indices = gtk_tree_path_get_indices (path);
8969   gint depth = gtk_tree_path_get_depth (path);
8970   gint i = 0;
8971
8972   *node = NULL;
8973   *tree = NULL;
8974
8975   if (depth == 0 || tmptree == NULL)
8976     return FALSE;
8977   do
8978     {
8979       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8980       ++i;
8981       if (tmpnode == NULL)
8982         {
8983           *tree = NULL;
8984           *node = NULL;
8985           return FALSE;
8986         }
8987       if (i >= depth)
8988         {
8989           *tree = tmptree;
8990           *node = tmpnode;
8991           return FALSE;
8992         }
8993       *tree = tmptree;
8994       *node = tmpnode;
8995       tmptree = tmpnode->children;
8996       if (tmptree == NULL)
8997         return TRUE;
8998     }
8999   while (1);
9000 }
9001
9002 static gboolean
9003 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9004                                   GtkTreeViewColumn *column)
9005 {
9006   GList *list;
9007
9008   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9009     return FALSE;
9010
9011   if (tree_view->priv->expander_column != NULL)
9012     {
9013       if (tree_view->priv->expander_column == column)
9014         return TRUE;
9015       return FALSE;
9016     }
9017   else
9018     {
9019       for (list = tree_view->priv->columns;
9020            list;
9021            list = list->next)
9022         if (((GtkTreeViewColumn *)list->data)->visible)
9023           break;
9024       if (list && list->data == column)
9025         return TRUE;
9026     }
9027   return FALSE;
9028 }
9029
9030 static void
9031 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9032                                 guint           keyval,
9033                                 guint           modmask,
9034                                 gboolean        add_shifted_binding,
9035                                 GtkMovementStep step,
9036                                 gint            count)
9037 {
9038
9039   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9040                                 "move_cursor", 2,
9041                                 G_TYPE_ENUM, step,
9042                                 G_TYPE_INT, count);
9043
9044   if (add_shifted_binding)
9045     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9046                                   "move_cursor", 2,
9047                                   G_TYPE_ENUM, step,
9048                                   G_TYPE_INT, count);
9049
9050   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9051    return;
9052
9053   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9054                                 "move_cursor", 2,
9055                                 G_TYPE_ENUM, step,
9056                                 G_TYPE_INT, count);
9057
9058   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9059                                 "move_cursor", 2,
9060                                 G_TYPE_ENUM, step,
9061                                 G_TYPE_INT, count);
9062 }
9063
9064 static gint
9065 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9066                                  GtkTreeIter  *iter,
9067                                  GtkRBTree    *tree,
9068                                  GtkRBNode    *node)
9069 {
9070   gint retval = FALSE;
9071   do
9072     {
9073       g_return_val_if_fail (node != NULL, FALSE);
9074
9075       if (node->children)
9076         {
9077           GtkTreeIter child;
9078           GtkRBTree *new_tree;
9079           GtkRBNode *new_node;
9080
9081           new_tree = node->children;
9082           new_node = new_tree->root;
9083
9084           while (new_node && new_node->left != new_tree->nil)
9085             new_node = new_node->left;
9086
9087           if (!gtk_tree_model_iter_children (model, &child, iter))
9088             return FALSE;
9089
9090           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9091         }
9092
9093       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9094         retval = TRUE;
9095       gtk_tree_model_unref_node (model, iter);
9096       node = _gtk_rbtree_next (tree, node);
9097     }
9098   while (gtk_tree_model_iter_next (model, iter));
9099
9100   return retval;
9101 }
9102
9103 static gint
9104 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9105                                               GtkRBTree   *tree)
9106 {
9107   GtkTreeIter iter;
9108   GtkTreePath *path;
9109   GtkRBNode *node;
9110   gint retval;
9111
9112   if (!tree)
9113     return FALSE;
9114
9115   node = tree->root;
9116   while (node && node->left != tree->nil)
9117     node = node->left;
9118
9119   g_return_val_if_fail (node != NULL, FALSE);
9120   path = _gtk_tree_view_find_path (tree_view, tree, node);
9121   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9122                            &iter, path);
9123   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9124   gtk_tree_path_free (path);
9125
9126   return retval;
9127 }
9128
9129 static void
9130 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9131                                     GtkTreeViewColumn *column)
9132 {
9133   GtkTreeViewColumn *left_column;
9134   GtkTreeViewColumn *cur_column = NULL;
9135   GtkTreeViewColumnReorder *reorder;
9136   gboolean rtl;
9137   GList *tmp_list;
9138   gint left;
9139
9140   /* We want to precalculate the motion list such that we know what column slots
9141    * are available.
9142    */
9143   left_column = NULL;
9144   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9145
9146   /* First, identify all possible drop spots */
9147   if (rtl)
9148     tmp_list = g_list_last (tree_view->priv->columns);
9149   else
9150     tmp_list = g_list_first (tree_view->priv->columns);
9151
9152   while (tmp_list)
9153     {
9154       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9155       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9156
9157       if (cur_column->visible == FALSE)
9158         continue;
9159
9160       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9161       if (left_column != column && cur_column != column &&
9162           tree_view->priv->column_drop_func &&
9163           ! (* tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9164         {
9165           left_column = cur_column;
9166           continue;
9167         }
9168       reorder = g_new (GtkTreeViewColumnReorder, 1);
9169       reorder->left_column = left_column;
9170       left_column = reorder->right_column = cur_column;
9171
9172       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9173     }
9174
9175   /* Add the last one */
9176   if (tree_view->priv->column_drop_func == NULL ||
9177       ((left_column != column) &&
9178        (* tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9179     {
9180       reorder = g_new (GtkTreeViewColumnReorder, 1);
9181       reorder->left_column = left_column;
9182       reorder->right_column = NULL;
9183       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9184     }
9185
9186   /* We quickly check to see if it even makes sense to reorder columns. */
9187   /* If there is nothing that can be moved, then we return */
9188
9189   if (tree_view->priv->column_drag_info == NULL)
9190     return;
9191
9192   /* We know there are always 2 slots possbile, as you can always return column. */
9193   /* If that's all there is, return */
9194   if (tree_view->priv->column_drag_info->next == NULL ||
9195       (tree_view->priv->column_drag_info->next->next == NULL &&
9196        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9197        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9198     {
9199       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9200         g_free (tmp_list->data);
9201       g_list_free (tree_view->priv->column_drag_info);
9202       tree_view->priv->column_drag_info = NULL;
9203       return;
9204     }
9205   /* We fill in the ranges for the columns, now that we've isolated them */
9206   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9207
9208   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9209     {
9210       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9211
9212       reorder->left_align = left;
9213       if (tmp_list->next != NULL)
9214         {
9215           g_assert (tmp_list->next->data);
9216           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9217                                          reorder->right_column->button->allocation.width +
9218                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9219         }
9220       else
9221         {
9222           gint width;
9223
9224           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9225           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9226         }
9227     }
9228 }
9229
9230 void
9231 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9232                                   GtkTreeViewColumn *column)
9233 {
9234   GdkEvent *send_event;
9235   GtkAllocation allocation;
9236   gint x, y, width, height;
9237   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9238   GdkDisplay *display = gdk_screen_get_display (screen);
9239
9240   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9241   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9242
9243   gtk_tree_view_set_column_drag_info (tree_view, column);
9244
9245   if (tree_view->priv->column_drag_info == NULL)
9246     return;
9247
9248   if (tree_view->priv->drag_window == NULL)
9249     {
9250       GdkWindowAttr attributes;
9251       guint attributes_mask;
9252
9253       attributes.window_type = GDK_WINDOW_CHILD;
9254       attributes.wclass = GDK_INPUT_OUTPUT;
9255       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9256       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9257       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9258       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9259
9260       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9261                                                      &attributes,
9262                                                      attributes_mask);
9263       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9264     }
9265
9266   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9267   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9268
9269   gtk_grab_remove (column->button);
9270
9271   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9272   send_event->crossing.send_event = TRUE;
9273   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9274   send_event->crossing.subwindow = NULL;
9275   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9276   send_event->crossing.time = GDK_CURRENT_TIME;
9277
9278   gtk_propagate_event (column->button, send_event);
9279   gdk_event_free (send_event);
9280
9281   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9282   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9283   send_event->button.send_event = TRUE;
9284   send_event->button.time = GDK_CURRENT_TIME;
9285   send_event->button.x = -1;
9286   send_event->button.y = -1;
9287   send_event->button.axes = NULL;
9288   send_event->button.state = 0;
9289   send_event->button.button = 1;
9290   send_event->button.device = gdk_display_get_core_pointer (display);
9291   send_event->button.x_root = 0;
9292   send_event->button.y_root = 0;
9293
9294   gtk_propagate_event (column->button, send_event);
9295   gdk_event_free (send_event);
9296
9297   gdk_window_move_resize (tree_view->priv->drag_window,
9298                           column->button->allocation.x,
9299                           0,
9300                           column->button->allocation.width,
9301                           column->button->allocation.height);
9302
9303   /* Kids, don't try this at home */
9304   g_object_ref (column->button);
9305   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9306   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9307   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9308   g_object_unref (column->button);
9309
9310   tree_view->priv->drag_column_x = column->button->allocation.x;
9311   allocation = column->button->allocation;
9312   allocation.x = 0;
9313   gtk_widget_size_allocate (column->button, &allocation);
9314   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9315
9316   tree_view->priv->drag_column = column;
9317   gdk_window_show (tree_view->priv->drag_window);
9318
9319   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9320   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9321
9322   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9323   while (gtk_events_pending ())
9324     gtk_main_iteration ();
9325
9326   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9327   gdk_pointer_grab (tree_view->priv->drag_window,
9328                     FALSE,
9329                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9330                     NULL, NULL, GDK_CURRENT_TIME);
9331   gdk_keyboard_grab (tree_view->priv->drag_window,
9332                      FALSE,
9333                      GDK_CURRENT_TIME);
9334 }
9335
9336 static void
9337 gtk_tree_view_queue_draw_arrow (GtkTreeView      *tree_view,
9338                                 GtkRBTree        *tree,
9339                                 GtkRBNode        *node,
9340                                 GdkRectangle     *clip_rect)
9341 {
9342   GdkRectangle rect;
9343
9344   if (!GTK_WIDGET_REALIZED (tree_view))
9345     return;
9346
9347   rect.x = 0;
9348   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9349
9350   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9351   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9352
9353   if (clip_rect)
9354     {
9355       GdkRectangle new_rect;
9356
9357       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9358
9359       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9360     }
9361   else
9362     {
9363       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9364     }
9365 }
9366
9367 void
9368 _gtk_tree_view_queue_draw_node (GtkTreeView  *tree_view,
9369                                 GtkRBTree    *tree,
9370                                 GtkRBNode    *node,
9371                                 GdkRectangle *clip_rect)
9372 {
9373   GdkRectangle rect;
9374
9375   if (!GTK_WIDGET_REALIZED (tree_view))
9376     return;
9377
9378   rect.x = 0;
9379   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9380
9381   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9382   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9383
9384   if (clip_rect)
9385     {
9386       GdkRectangle new_rect;
9387
9388       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9389
9390       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9391     }
9392   else
9393     {
9394       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9395     }
9396 }
9397
9398 static void
9399 gtk_tree_view_queue_draw_path (GtkTreeView      *tree_view,
9400                                GtkTreePath      *path,
9401                                GdkRectangle     *clip_rect)
9402 {
9403   GtkRBTree *tree = NULL;
9404   GtkRBNode *node = NULL;
9405
9406   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9407
9408   if (tree)
9409     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9410 }
9411
9412 /* x and y are the mouse position
9413  */
9414 static void
9415 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9416                           GtkRBTree   *tree,
9417                           GtkRBNode   *node,
9418                           /* in bin_window coordinates */
9419                           gint         x,
9420                           gint         y)
9421 {
9422   GdkRectangle area;
9423   GtkStateType state;
9424   GtkWidget *widget;
9425   gint x_offset = 0;
9426   gint x2;
9427   gint vertical_separator;
9428   gint expander_size;
9429   GtkExpanderStyle expander_style;
9430
9431   gtk_widget_style_get (GTK_WIDGET (tree_view),
9432                         "vertical-separator", &vertical_separator,
9433                         NULL);
9434   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9435
9436   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9437     return;
9438
9439   widget = GTK_WIDGET (tree_view);
9440
9441   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9442
9443   area.x = x_offset;
9444   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9445   area.width = expander_size + 2;
9446   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9447
9448   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9449     {
9450       state = GTK_STATE_INSENSITIVE;
9451     }
9452   else if (node == tree_view->priv->button_pressed_node)
9453     {
9454       if (x >= area.x && x <= (area.x + area.width) &&
9455           y >= area.y && y <= (area.y + area.height))
9456         state = GTK_STATE_ACTIVE;
9457       else
9458         state = GTK_STATE_NORMAL;
9459     }
9460   else
9461     {
9462       if (node == tree_view->priv->prelight_node &&
9463           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9464         state = GTK_STATE_PRELIGHT;
9465       else
9466         state = GTK_STATE_NORMAL;
9467     }
9468
9469   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9470     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9471   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9472     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9473   else if (node->children != NULL)
9474     expander_style = GTK_EXPANDER_EXPANDED;
9475   else
9476     expander_style = GTK_EXPANDER_COLLAPSED;
9477
9478   gtk_paint_expander (widget->style,
9479                       tree_view->priv->bin_window,
9480                       state,
9481                       &area,
9482                       widget,
9483                       "treeview",
9484                       area.x + area.width / 2,
9485                       area.y + area.height / 2,
9486                       expander_style);
9487 }
9488
9489 static void
9490 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9491
9492 {
9493   GtkTreePath *cursor_path;
9494
9495   if ((tree_view->priv->tree == NULL) ||
9496       (! GTK_WIDGET_REALIZED (tree_view)))
9497     return;
9498
9499   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9500
9501   cursor_path = NULL;
9502   if (tree_view->priv->cursor)
9503     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9504
9505   if (cursor_path == NULL)
9506     {
9507       /* Consult the selection before defaulting to the first element */
9508       GtkTreeSelection *selection;
9509       GtkTreeModel     *model;
9510       GList            *selected_rows;
9511
9512       selection = gtk_tree_view_get_selection (tree_view);
9513       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9514       if (selected_rows)
9515         {
9516           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9517           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9518           g_list_free (selected_rows);
9519         }
9520       else
9521         cursor_path = gtk_tree_path_new_first ();
9522
9523       gtk_tree_row_reference_free (tree_view->priv->cursor);
9524       tree_view->priv->cursor = NULL;
9525
9526       if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9527         gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9528       else
9529         gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9530     }
9531   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9532   gtk_tree_path_free (cursor_path);
9533
9534   if (tree_view->priv->focus_column == NULL)
9535     {
9536       GList *list;
9537       for (list = tree_view->priv->columns; list; list = list->next)
9538         {
9539           if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9540             {
9541               tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9542               break;
9543             }
9544         }
9545     }
9546 }
9547
9548 static void
9549 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9550                                    gint         count)
9551 {
9552   gint selection_count;
9553   GtkRBTree *cursor_tree = NULL;
9554   GtkRBNode *cursor_node = NULL;
9555   GtkRBTree *new_cursor_tree = NULL;
9556   GtkRBNode *new_cursor_node = NULL;
9557   GtkTreePath *cursor_path = NULL;
9558   gboolean grab_focus = TRUE;
9559
9560   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9561     return;
9562
9563   cursor_path = NULL;
9564   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9565     /* FIXME: we lost the cursor; should we get the first? */
9566     return;
9567
9568   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9569   _gtk_tree_view_find_node (tree_view, cursor_path,
9570                             &cursor_tree, &cursor_node);
9571   gtk_tree_path_free (cursor_path);
9572
9573   if (cursor_tree == NULL)
9574     /* FIXME: we lost the cursor; should we get the first? */
9575     return;
9576
9577   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9578
9579   if (selection_count == 0
9580       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9581       && !tree_view->priv->ctrl_pressed)
9582     {
9583       /* Don't move the cursor, but just select the current node */
9584       new_cursor_tree = cursor_tree;
9585       new_cursor_node = cursor_node;
9586     }
9587   else
9588     {
9589       if (count == -1)
9590         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9591                                &new_cursor_tree, &new_cursor_node);
9592       else
9593         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9594                                &new_cursor_tree, &new_cursor_node);
9595     }
9596
9597   /*
9598    * If the list has only one item and multi-selection is set then select
9599    * the row.
9600    */
9601   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9602       new_cursor_node == NULL)
9603     {
9604       if (count == -1)
9605         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9606                                &new_cursor_tree, &new_cursor_node);
9607       else
9608         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9609                                &new_cursor_tree, &new_cursor_node);
9610
9611       if (new_cursor_node == NULL)
9612         {
9613           new_cursor_node = cursor_node;
9614           new_cursor_tree = cursor_tree;
9615         }
9616       else
9617         {
9618           new_cursor_node = NULL;
9619         }
9620     }
9621
9622   if (new_cursor_node)
9623     {
9624       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9625       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9626       gtk_tree_path_free (cursor_path);
9627     }
9628   else
9629     {
9630       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9631
9632       if (!tree_view->priv->shift_pressed)
9633         {
9634           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9635                                           count < 0 ?
9636                                           GTK_DIR_UP : GTK_DIR_DOWN))
9637             {
9638               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9639
9640               if (toplevel)
9641                 gtk_widget_child_focus (toplevel,
9642                                         count < 0 ?
9643                                         GTK_DIR_TAB_BACKWARD :
9644                                         GTK_DIR_TAB_FORWARD);
9645
9646               grab_focus = FALSE;
9647             }
9648         }
9649       else
9650         {
9651           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9652         }
9653     }
9654
9655   if (grab_focus)
9656     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9657 }
9658
9659 static void
9660 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9661                                         gint         count)
9662 {
9663   GtkRBTree *cursor_tree = NULL;
9664   GtkRBNode *cursor_node = NULL;
9665   GtkTreePath *old_cursor_path = NULL;
9666   GtkTreePath *cursor_path = NULL;
9667   gint y;
9668   gint window_y;
9669   gint vertical_separator;
9670
9671   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9672     return;
9673
9674   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9675     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9676   else
9677     /* This is sorta weird.  Focus in should give us a cursor */
9678     return;
9679
9680   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9681   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9682                             &cursor_tree, &cursor_node);
9683
9684   if (cursor_tree == NULL)
9685     {
9686       /* FIXME: we lost the cursor.  Should we try to get one? */
9687       gtk_tree_path_free (old_cursor_path);
9688       return;
9689     }
9690   g_return_if_fail (cursor_node != NULL);
9691
9692   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9693   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9694   y += tree_view->priv->cursor_offset;
9695   y += count * (int)tree_view->priv->vadjustment->page_increment;
9696   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9697
9698   if (y >= tree_view->priv->height)
9699     y = tree_view->priv->height - 1;
9700
9701   tree_view->priv->cursor_offset =
9702     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9703                              &cursor_tree, &cursor_node);
9704
9705   if (tree_view->priv->cursor_offset >= BACKGROUND_HEIGHT (cursor_node))
9706     {
9707       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9708                              &cursor_tree, &cursor_node);
9709       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9710     }
9711
9712   y -= tree_view->priv->cursor_offset;
9713   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9714   g_return_if_fail (cursor_path != NULL);
9715   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9716
9717   y -= window_y;
9718   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9719   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9720
9721   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9722     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9723
9724   gtk_tree_path_free (old_cursor_path);
9725   gtk_tree_path_free (cursor_path);
9726 }
9727
9728 static void
9729 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9730                                       gint         count)
9731 {
9732   GtkRBTree *cursor_tree = NULL;
9733   GtkRBNode *cursor_node = NULL;
9734   GtkTreePath *cursor_path = NULL;
9735   GtkTreeViewColumn *column;
9736   GtkTreeIter iter;
9737   GList *list;
9738   gboolean found_column = FALSE;
9739   gboolean rtl;
9740
9741   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9742
9743   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9744     return;
9745
9746   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9747     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9748   else
9749     return;
9750
9751   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9752   if (cursor_tree == NULL)
9753     return;
9754   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9755     {
9756       gtk_tree_path_free (cursor_path);
9757       return;
9758     }
9759   gtk_tree_path_free (cursor_path);
9760
9761   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9762   if (tree_view->priv->focus_column)
9763     {
9764       for (; list; list = (rtl ? list->prev : list->next))
9765         {
9766           if (list->data == tree_view->priv->focus_column)
9767             break;
9768         }
9769     }
9770
9771   while (list)
9772     {
9773       gboolean left, right;
9774
9775       column = list->data;
9776       if (column->visible == FALSE)
9777         goto loop_end;
9778
9779       gtk_tree_view_column_cell_set_cell_data (column,
9780                                                tree_view->priv->model,
9781                                                &iter,
9782                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9783                                                cursor_node->children?TRUE:FALSE);
9784
9785       if (rtl)
9786         {
9787           right = list->prev ? TRUE : FALSE;
9788           left = list->next ? TRUE : FALSE;
9789         }
9790       else
9791         {
9792           left = list->prev ? TRUE : FALSE;
9793           right = list->next ? TRUE : FALSE;
9794         }
9795
9796       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9797         {
9798           tree_view->priv->focus_column = column;
9799           found_column = TRUE;
9800           break;
9801         }
9802     loop_end:
9803       if (count == 1)
9804         list = rtl ? list->prev : list->next;
9805       else
9806         list = rtl ? list->next : list->prev;
9807     }
9808
9809   if (found_column)
9810     {
9811       if (!gtk_tree_view_has_special_cell (tree_view))
9812         _gtk_tree_view_queue_draw_node (tree_view,
9813                                         cursor_tree,
9814                                         cursor_node,
9815                                         NULL);
9816       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9817     }
9818   else
9819     {
9820       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9821     }
9822
9823   gtk_tree_view_clamp_column_visible (tree_view,
9824                                       tree_view->priv->focus_column, TRUE);
9825 }
9826
9827 static void
9828 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9829                                      gint         count)
9830 {
9831   GtkRBTree *cursor_tree;
9832   GtkRBNode *cursor_node;
9833   GtkTreePath *path;
9834   GtkTreePath *old_path;
9835
9836   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9837     return;
9838
9839   g_return_if_fail (tree_view->priv->tree != NULL);
9840
9841   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9842
9843   cursor_tree = tree_view->priv->tree;
9844   cursor_node = cursor_tree->root;
9845
9846   if (count == -1)
9847     {
9848       while (cursor_node && cursor_node->left != cursor_tree->nil)
9849         cursor_node = cursor_node->left;
9850     }
9851   else
9852     {
9853       do
9854         {
9855           while (cursor_node && cursor_node->right != cursor_tree->nil)
9856             cursor_node = cursor_node->right;
9857           if (cursor_node->children == NULL)
9858             break;
9859
9860           cursor_tree = cursor_node->children;
9861           cursor_node = cursor_tree->root;
9862         }
9863       while (1);
9864     }
9865
9866   path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9867
9868   if (gtk_tree_path_compare (old_path, path))
9869     {
9870       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9871     }
9872   else
9873     {
9874       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9875     }
9876
9877   gtk_tree_path_free (old_path);
9878   gtk_tree_path_free (path);
9879 }
9880
9881 static gboolean
9882 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
9883 {
9884   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9885     return FALSE;
9886
9887   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9888     return FALSE;
9889
9890   gtk_tree_selection_select_all (tree_view->priv->selection);
9891
9892   return TRUE;
9893 }
9894
9895 static gboolean
9896 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
9897 {
9898   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9899     return FALSE;
9900
9901   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9902     return FALSE;
9903
9904   gtk_tree_selection_unselect_all (tree_view->priv->selection);
9905
9906   return TRUE;
9907 }
9908
9909 static gboolean
9910 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
9911                                       gboolean     start_editing)
9912 {
9913   GtkRBTree *cursor_tree = NULL;
9914   GtkRBNode *cursor_node = NULL;
9915   GtkTreePath *cursor_path = NULL;
9916   GtkTreeSelectMode mode = 0;
9917
9918   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9919     return FALSE;
9920
9921   if (tree_view->priv->cursor)
9922     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9923
9924   if (cursor_path == NULL)
9925     return FALSE;
9926
9927   _gtk_tree_view_find_node (tree_view, cursor_path,
9928                             &cursor_tree, &cursor_node);
9929
9930   if (cursor_tree == NULL)
9931     {
9932       gtk_tree_path_free (cursor_path);
9933       return FALSE;
9934     }
9935
9936   if (!tree_view->priv->shift_pressed && start_editing &&
9937       tree_view->priv->focus_column)
9938     {
9939       if (gtk_tree_view_start_editing (tree_view, cursor_path))
9940         {
9941           gtk_tree_path_free (cursor_path);
9942           return TRUE;
9943         }
9944     }
9945
9946   if (tree_view->priv->ctrl_pressed)
9947     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
9948   if (tree_view->priv->shift_pressed)
9949     mode |= GTK_TREE_SELECT_MODE_EXTEND;
9950
9951   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
9952                                             cursor_node,
9953                                             cursor_tree,
9954                                             cursor_path,
9955                                             mode,
9956                                             FALSE);
9957
9958   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9959
9960   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9961   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9962
9963   if (!tree_view->priv->shift_pressed)
9964     gtk_tree_view_row_activated (tree_view, cursor_path,
9965                                  tree_view->priv->focus_column);
9966
9967   gtk_tree_path_free (cursor_path);
9968
9969   return TRUE;
9970 }
9971
9972 static gboolean
9973 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
9974 {
9975   GtkRBTree *cursor_tree = NULL;
9976   GtkRBNode *cursor_node = NULL;
9977   GtkTreePath *cursor_path = NULL;
9978
9979   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9980     return FALSE;
9981
9982   cursor_path = NULL;
9983   if (tree_view->priv->cursor)
9984     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9985
9986   if (cursor_path == NULL)
9987     return FALSE;
9988
9989   _gtk_tree_view_find_node (tree_view, cursor_path,
9990                             &cursor_tree, &cursor_node);
9991   if (cursor_tree == NULL)
9992     {
9993       gtk_tree_path_free (cursor_path);
9994       return FALSE;
9995     }
9996
9997   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
9998                                             cursor_node,
9999                                             cursor_tree,
10000                                             cursor_path,
10001                                             GTK_TREE_SELECT_MODE_TOGGLE,
10002                                             FALSE);
10003
10004   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10005
10006   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10007   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10008   gtk_tree_path_free (cursor_path);
10009
10010   return TRUE;
10011 }
10012
10013 static gboolean
10014 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10015                                                gboolean     logical,
10016                                                gboolean     expand,
10017                                                gboolean     open_all)
10018 {
10019   GtkTreePath *cursor_path = NULL;
10020   GtkRBTree *tree;
10021   GtkRBNode *node;
10022
10023   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10024     return FALSE;
10025
10026   cursor_path = NULL;
10027   if (tree_view->priv->cursor)
10028     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10029
10030   if (cursor_path == NULL)
10031     return FALSE;
10032
10033   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10034     return FALSE;
10035
10036   /* Don't handle the event if we aren't an expander */
10037   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10038     return FALSE;
10039
10040   if (!logical
10041       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10042     expand = !expand;
10043
10044   if (expand)
10045     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10046   else
10047     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10048
10049   gtk_tree_path_free (cursor_path);
10050
10051   return TRUE;
10052 }
10053
10054 static gboolean
10055 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10056 {
10057   GtkRBTree *cursor_tree = NULL;
10058   GtkRBNode *cursor_node = NULL;
10059   GtkTreePath *cursor_path = NULL;
10060   GdkModifierType state;
10061
10062   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10063     return FALSE;
10064
10065   cursor_path = NULL;
10066   if (tree_view->priv->cursor)
10067     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10068
10069   if (cursor_path == NULL)
10070     return FALSE;
10071
10072   _gtk_tree_view_find_node (tree_view, cursor_path,
10073                             &cursor_tree, &cursor_node);
10074   if (cursor_tree == NULL)
10075     {
10076       gtk_tree_path_free (cursor_path);
10077       return FALSE;
10078     }
10079
10080   if (gtk_get_current_event_state (&state))
10081     {
10082       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10083         tree_view->priv->ctrl_pressed = TRUE;
10084     }
10085
10086   if (cursor_tree->parent_node)
10087     {
10088       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10089       cursor_node = cursor_tree->parent_node;
10090       cursor_tree = cursor_tree->parent_tree;
10091
10092       gtk_tree_path_up (cursor_path);
10093
10094       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10095     }
10096
10097   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10098
10099   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10100   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10101   gtk_tree_path_free (cursor_path);
10102
10103   tree_view->priv->ctrl_pressed = FALSE;
10104
10105   return TRUE;
10106 }
10107 static gboolean
10108 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10109 {
10110   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10111   tree_view->priv->typeselect_flush_timeout = 0;
10112
10113   return FALSE;
10114 }
10115
10116 /* Cut and paste from gtkwindow.c */
10117 static void
10118 send_focus_change (GtkWidget *widget,
10119                    gboolean   in)
10120 {
10121   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10122
10123   g_object_ref (widget);
10124
10125  if (in)
10126     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10127   else
10128     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10129
10130   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10131   fevent->focus_change.window = g_object_ref (widget->window);
10132   fevent->focus_change.in = in;
10133
10134   gtk_widget_event (widget, fevent);
10135
10136   g_object_notify (G_OBJECT (widget), "has-focus");
10137
10138   g_object_unref (widget);
10139   gdk_event_free (fevent);
10140 }
10141
10142 static void
10143 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10144 {
10145   GtkWidget *frame, *vbox, *toplevel;
10146
10147   if (tree_view->priv->search_custom_entry_set)
10148     return;
10149
10150   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10151
10152    if (tree_view->priv->search_window != NULL)
10153      {
10154        if (GTK_WINDOW (toplevel)->group)
10155          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10156                                       GTK_WINDOW (tree_view->priv->search_window));
10157        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10158          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10159                                          GTK_WINDOW (tree_view->priv->search_window));
10160        return;
10161      }
10162
10163   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10164
10165   if (GTK_WINDOW (toplevel)->group)
10166     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10167                                  GTK_WINDOW (tree_view->priv->search_window));
10168
10169   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10170   g_signal_connect (tree_view->priv->search_window, "delete_event",
10171                     G_CALLBACK (gtk_tree_view_search_delete_event),
10172                     tree_view);
10173   g_signal_connect (tree_view->priv->search_window, "key_press_event",
10174                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10175                     tree_view);
10176   g_signal_connect (tree_view->priv->search_window, "button_press_event",
10177                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10178                     tree_view);
10179   g_signal_connect (tree_view->priv->search_window, "scroll_event",
10180                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10181                     tree_view);
10182
10183   frame = gtk_frame_new (NULL);
10184   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10185   gtk_widget_show (frame);
10186   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10187
10188   vbox = gtk_vbox_new (FALSE, 0);
10189   gtk_widget_show (vbox);
10190   gtk_container_add (GTK_CONTAINER (frame), vbox);
10191   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10192
10193   /* add entry */
10194   tree_view->priv->search_entry = gtk_entry_new ();
10195   gtk_widget_show (tree_view->priv->search_entry);
10196   g_signal_connect (tree_view->priv->search_entry, "populate_popup",
10197                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10198                     tree_view);
10199   g_signal_connect (tree_view->priv->search_entry,
10200                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10201                     tree_view);
10202   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10203                     "preedit_changed",
10204                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10205                     tree_view);
10206   gtk_container_add (GTK_CONTAINER (vbox),
10207                      tree_view->priv->search_entry);
10208
10209   gtk_widget_realize (tree_view->priv->search_entry);
10210 }
10211
10212 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10213  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10214  */
10215 static gboolean
10216 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10217                                              gboolean     keybinding)
10218 {
10219   /* We only start interactive search if we have focus or the columns
10220    * have focus.  If one of our children have focus, we don't want to
10221    * start the search.
10222    */
10223   GList *list;
10224   gboolean found_focus = FALSE;
10225   GtkWidgetClass *entry_parent_class;
10226
10227   if (!tree_view->priv->enable_search && !keybinding)
10228     return FALSE;
10229
10230   if (tree_view->priv->search_custom_entry_set)
10231     return FALSE;
10232
10233   if (tree_view->priv->search_window != NULL &&
10234       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10235     return TRUE;
10236
10237   for (list = tree_view->priv->columns; list; list = list->next)
10238     {
10239       GtkTreeViewColumn *column;
10240
10241       column = list->data;
10242       if (! column->visible)
10243         continue;
10244
10245       if (GTK_WIDGET_HAS_FOCUS (column->button))
10246         {
10247           found_focus = TRUE;
10248           break;
10249         }
10250     }
10251
10252   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10253     found_focus = TRUE;
10254
10255   if (!found_focus)
10256     return FALSE;
10257
10258   if (tree_view->priv->search_column < 0)
10259     return FALSE;
10260
10261   gtk_tree_view_ensure_interactive_directory (tree_view);
10262
10263   if (keybinding)
10264     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10265
10266   /* done, show it */
10267   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10268   gtk_widget_show (tree_view->priv->search_window);
10269   if (tree_view->priv->search_entry_changed_id == 0)
10270     {
10271       tree_view->priv->search_entry_changed_id =
10272         g_signal_connect (tree_view->priv->search_entry, "changed",
10273                           G_CALLBACK (gtk_tree_view_search_init),
10274                           tree_view);
10275     }
10276
10277   tree_view->priv->typeselect_flush_timeout =
10278     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10279                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10280                    tree_view);
10281
10282   /* Grab focus will select all the text.  We don't want that to happen, so we
10283    * call the parent instance and bypass the selection change.  This is probably
10284    * really non-kosher. */
10285   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10286   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10287
10288   /* send focus-in event */
10289   send_focus_change (tree_view->priv->search_entry, TRUE);
10290
10291   /* search first matching iter */
10292   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10293
10294   return TRUE;
10295 }
10296
10297 static gboolean
10298 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10299 {
10300   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10301 }
10302
10303 /* this function returns the new width of the column being resized given
10304  * the column and x position of the cursor; the x cursor position is passed
10305  * in as a pointer and automagicly corrected if it's beyond min/max limits
10306  */
10307 static gint
10308 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10309                                 gint       i,
10310                                 gint      *x)
10311 {
10312   GtkTreeViewColumn *column;
10313   gint width;
10314   gboolean rtl;
10315
10316   /* first translate the x position from widget->window
10317    * to clist->clist_window
10318    */
10319   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10320   column = g_list_nth (tree_view->priv->columns, i)->data;
10321   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10322
10323   /* Clamp down the value */
10324   if (column->min_width == -1)
10325     width = MAX (column->button->requisition.width,
10326                  width);
10327   else
10328     width = MAX (column->min_width,
10329                  width);
10330   if (column->max_width != -1)
10331     width = MIN (width, column->max_width);
10332
10333   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10334
10335   return width;
10336 }
10337
10338
10339 /* FIXME this adjust_allocation is a big cut-and-paste from
10340  * GtkCList, needs to be some "official" way to do this
10341  * factored out.
10342  */
10343 typedef struct
10344 {
10345   GdkWindow *window;
10346   int dx;
10347   int dy;
10348 } ScrollData;
10349
10350 /* The window to which widget->window is relative */
10351 #define ALLOCATION_WINDOW(widget)               \
10352    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10353     (widget)->window :                          \
10354      gdk_window_get_parent ((widget)->window))
10355
10356 static void
10357 adjust_allocation_recurse (GtkWidget *widget,
10358                            gpointer   data)
10359 {
10360   ScrollData *scroll_data = data;
10361
10362   /* Need to really size allocate instead of just poking
10363    * into widget->allocation if the widget is not realized.
10364    * FIXME someone figure out why this was.
10365    */
10366   if (!GTK_WIDGET_REALIZED (widget))
10367     {
10368       if (GTK_WIDGET_VISIBLE (widget))
10369         {
10370           GdkRectangle tmp_rectangle = widget->allocation;
10371           tmp_rectangle.x += scroll_data->dx;
10372           tmp_rectangle.y += scroll_data->dy;
10373
10374           gtk_widget_size_allocate (widget, &tmp_rectangle);
10375         }
10376     }
10377   else
10378     {
10379       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10380         {
10381           widget->allocation.x += scroll_data->dx;
10382           widget->allocation.y += scroll_data->dy;
10383
10384           if (GTK_IS_CONTAINER (widget))
10385             gtk_container_forall (GTK_CONTAINER (widget),
10386                                   adjust_allocation_recurse,
10387                                   data);
10388         }
10389     }
10390 }
10391
10392 static void
10393 adjust_allocation (GtkWidget *widget,
10394                    int        dx,
10395                    int        dy)
10396 {
10397   ScrollData scroll_data;
10398
10399   if (GTK_WIDGET_REALIZED (widget))
10400     scroll_data.window = ALLOCATION_WINDOW (widget);
10401   else
10402     scroll_data.window = NULL;
10403
10404   scroll_data.dx = dx;
10405   scroll_data.dy = dy;
10406
10407   adjust_allocation_recurse (widget, &scroll_data);
10408 }
10409
10410 /* Callbacks */
10411 static void
10412 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10413                                   GtkTreeView   *tree_view)
10414 {
10415   if (GTK_WIDGET_REALIZED (tree_view))
10416     {
10417       gint dy;
10418
10419       gdk_window_move (tree_view->priv->bin_window,
10420                        - tree_view->priv->hadjustment->value,
10421                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10422       gdk_window_move (tree_view->priv->header_window,
10423                        - tree_view->priv->hadjustment->value,
10424                        0);
10425       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10426       if (dy && tree_view->priv->edited_column)
10427         {
10428           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10429             {
10430               GList *list;
10431               GtkWidget *widget;
10432               GtkTreeViewChild *child = NULL;
10433
10434               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10435               adjust_allocation (widget, 0, dy);
10436
10437               for (list = tree_view->priv->children; list; list = list->next)
10438                 {
10439                   child = (GtkTreeViewChild *)list->data;
10440                   if (child->widget == widget)
10441                     {
10442                       child->y += dy;
10443                       break;
10444                     }
10445                 }
10446             }
10447         }
10448       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10449
10450       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10451         {
10452           /* update our dy and top_row */
10453           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10454           gtk_tree_view_dy_to_top_row (tree_view);
10455         }
10456     }
10457 }
10458
10459 \f
10460
10461 /* Public methods
10462  */
10463
10464 /**
10465  * gtk_tree_view_new:
10466  *
10467  * Creates a new #GtkTreeView widget.
10468  *
10469  * Return value: A newly created #GtkTreeView widget.
10470  **/
10471 GtkWidget *
10472 gtk_tree_view_new (void)
10473 {
10474   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10475 }
10476
10477 /**
10478  * gtk_tree_view_new_with_model:
10479  * @model: the model.
10480  *
10481  * Creates a new #GtkTreeView widget with the model initialized to @model.
10482  *
10483  * Return value: A newly created #GtkTreeView widget.
10484  **/
10485 GtkWidget *
10486 gtk_tree_view_new_with_model (GtkTreeModel *model)
10487 {
10488   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10489 }
10490
10491 /* Public Accessors
10492  */
10493
10494 /**
10495  * gtk_tree_view_get_model:
10496  * @tree_view: a #GtkTreeView
10497  *
10498  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10499  * model is unset.
10500  *
10501  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10502  **/
10503 GtkTreeModel *
10504 gtk_tree_view_get_model (GtkTreeView *tree_view)
10505 {
10506   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10507
10508   return tree_view->priv->model;
10509 }
10510
10511 /**
10512  * gtk_tree_view_set_model:
10513  * @tree_view: A #GtkTreeNode.
10514  * @model: The model.
10515  *
10516  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10517  * set, it will remove it before setting the new model.  If @model is %NULL,
10518  * then it will unset the old model.
10519  **/
10520 void
10521 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10522                          GtkTreeModel *model)
10523 {
10524   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10525
10526   if (model != NULL)
10527     g_return_if_fail (GTK_IS_TREE_MODEL (model));
10528
10529   if (model == tree_view->priv->model)
10530     return;
10531
10532   if (tree_view->priv->scroll_to_path)
10533     {
10534       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10535       tree_view->priv->scroll_to_path = NULL;
10536     }
10537
10538   if (tree_view->priv->model)
10539     {
10540       GList *tmplist = tree_view->priv->columns;
10541
10542       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10543       gtk_tree_view_stop_editing (tree_view, TRUE);
10544
10545       if (tree_view->priv->expand_collapse_timeout)
10546         {
10547           g_source_remove (tree_view->priv->expand_collapse_timeout);
10548           tree_view->priv->expand_collapse_timeout = 0;
10549         }
10550
10551       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10552                                             gtk_tree_view_row_changed,
10553                                             tree_view);
10554       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10555                                             gtk_tree_view_row_inserted,
10556                                             tree_view);
10557       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10558                                             gtk_tree_view_row_has_child_toggled,
10559                                             tree_view);
10560       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10561                                             gtk_tree_view_row_deleted,
10562                                             tree_view);
10563       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10564                                             gtk_tree_view_rows_reordered,
10565                                             tree_view);
10566
10567       for (; tmplist; tmplist = tmplist->next)
10568         _gtk_tree_view_column_unset_model (tmplist->data,
10569                                            tree_view->priv->model);
10570
10571       if (tree_view->priv->tree)
10572         gtk_tree_view_free_rbtree (tree_view);
10573
10574       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10575       tree_view->priv->drag_dest_row = NULL;
10576       gtk_tree_row_reference_free (tree_view->priv->cursor);
10577       tree_view->priv->cursor = NULL;
10578       gtk_tree_row_reference_free (tree_view->priv->anchor);
10579       tree_view->priv->anchor = NULL;
10580       gtk_tree_row_reference_free (tree_view->priv->top_row);
10581       tree_view->priv->top_row = NULL;
10582       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10583       tree_view->priv->last_button_press = NULL;
10584       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10585       tree_view->priv->last_button_press_2 = NULL;
10586       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10587       tree_view->priv->scroll_to_path = NULL;
10588
10589       tree_view->priv->scroll_to_column = NULL;
10590
10591       g_object_unref (tree_view->priv->model);
10592
10593       tree_view->priv->search_column = -1;
10594       tree_view->priv->fixed_height_check = 0;
10595       tree_view->priv->fixed_height = -1;
10596       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10597     }
10598
10599   tree_view->priv->model = model;
10600
10601   if (tree_view->priv->model)
10602     {
10603       gint i;
10604       GtkTreePath *path;
10605       GtkTreeIter iter;
10606       GtkTreeModelFlags flags;
10607
10608       if (tree_view->priv->search_column == -1)
10609         {
10610           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10611             {
10612               GType type = gtk_tree_model_get_column_type (model, i);
10613
10614               if (g_value_type_transformable (type, G_TYPE_STRING))
10615                 {
10616                   tree_view->priv->search_column = i;
10617                   break;
10618                 }
10619             }
10620         }
10621
10622       g_object_ref (tree_view->priv->model);
10623       g_signal_connect (tree_view->priv->model,
10624                         "row_changed",
10625                         G_CALLBACK (gtk_tree_view_row_changed),
10626                         tree_view);
10627       g_signal_connect (tree_view->priv->model,
10628                         "row_inserted",
10629                         G_CALLBACK (gtk_tree_view_row_inserted),
10630                         tree_view);
10631       g_signal_connect (tree_view->priv->model,
10632                         "row_has_child_toggled",
10633                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10634                         tree_view);
10635       g_signal_connect (tree_view->priv->model,
10636                         "row_deleted",
10637                         G_CALLBACK (gtk_tree_view_row_deleted),
10638                         tree_view);
10639       g_signal_connect (tree_view->priv->model,
10640                         "rows_reordered",
10641                         G_CALLBACK (gtk_tree_view_rows_reordered),
10642                         tree_view);
10643
10644       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10645       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10646         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10647       else
10648         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10649
10650       path = gtk_tree_path_new_first ();
10651       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10652         {
10653           tree_view->priv->tree = _gtk_rbtree_new ();
10654           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10655         }
10656       gtk_tree_path_free (path);
10657
10658       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10659       install_presize_handler (tree_view);
10660     }
10661
10662   g_object_notify (G_OBJECT (tree_view), "model");
10663
10664   if (tree_view->priv->selection)
10665   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10666
10667   if (GTK_WIDGET_REALIZED (tree_view))
10668     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10669 }
10670
10671 /**
10672  * gtk_tree_view_get_selection:
10673  * @tree_view: A #GtkTreeView.
10674  *
10675  * Gets the #GtkTreeSelection associated with @tree_view.
10676  *
10677  * Return value: A #GtkTreeSelection object.
10678  **/
10679 GtkTreeSelection *
10680 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10681 {
10682   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10683
10684   return tree_view->priv->selection;
10685 }
10686
10687 /**
10688  * gtk_tree_view_get_hadjustment:
10689  * @tree_view: A #GtkTreeView
10690  *
10691  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10692  *
10693  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10694  * used.
10695  **/
10696 GtkAdjustment *
10697 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10698 {
10699   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10700
10701   if (tree_view->priv->hadjustment == NULL)
10702     gtk_tree_view_set_hadjustment (tree_view, NULL);
10703
10704   return tree_view->priv->hadjustment;
10705 }
10706
10707 /**
10708  * gtk_tree_view_set_hadjustment:
10709  * @tree_view: A #GtkTreeView
10710  * @adjustment: The #GtkAdjustment to set, or %NULL
10711  *
10712  * Sets the #GtkAdjustment for the current horizontal aspect.
10713  **/
10714 void
10715 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10716                                GtkAdjustment *adjustment)
10717 {
10718   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10719
10720   gtk_tree_view_set_adjustments (tree_view,
10721                                  adjustment,
10722                                  tree_view->priv->vadjustment);
10723
10724   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10725 }
10726
10727 /**
10728  * gtk_tree_view_get_vadjustment:
10729  * @tree_view: A #GtkTreeView
10730  *
10731  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10732  *
10733  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10734  * used.
10735  **/
10736 GtkAdjustment *
10737 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10738 {
10739   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10740
10741   if (tree_view->priv->vadjustment == NULL)
10742     gtk_tree_view_set_vadjustment (tree_view, NULL);
10743
10744   return tree_view->priv->vadjustment;
10745 }
10746
10747 /**
10748  * gtk_tree_view_set_vadjustment:
10749  * @tree_view: A #GtkTreeView
10750  * @adjustment: The #GtkAdjustment to set, or %NULL
10751  *
10752  * Sets the #GtkAdjustment for the current vertical aspect.
10753  **/
10754 void
10755 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10756                                GtkAdjustment *adjustment)
10757 {
10758   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10759
10760   gtk_tree_view_set_adjustments (tree_view,
10761                                  tree_view->priv->hadjustment,
10762                                  adjustment);
10763
10764   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10765 }
10766
10767 /* Column and header operations */
10768
10769 /**
10770  * gtk_tree_view_get_headers_visible:
10771  * @tree_view: A #GtkTreeView.
10772  *
10773  * Returns %TRUE if the headers on the @tree_view are visible.
10774  *
10775  * Return value: Whether the headers are visible or not.
10776  **/
10777 gboolean
10778 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10779 {
10780   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10781
10782   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10783 }
10784
10785 /**
10786  * gtk_tree_view_set_headers_visible:
10787  * @tree_view: A #GtkTreeView.
10788  * @headers_visible: %TRUE if the headers are visible
10789  *
10790  * Sets the visibility state of the headers.
10791  **/
10792 void
10793 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10794                                    gboolean     headers_visible)
10795 {
10796   gint x, y;
10797   GList *list;
10798   GtkTreeViewColumn *column;
10799
10800   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10801
10802   headers_visible = !! headers_visible;
10803
10804   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10805     return;
10806
10807   if (headers_visible)
10808     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10809   else
10810     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10811
10812   if (GTK_WIDGET_REALIZED (tree_view))
10813     {
10814       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10815       if (headers_visible)
10816         {
10817           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));
10818
10819           if (GTK_WIDGET_MAPPED (tree_view))
10820             gtk_tree_view_map_buttons (tree_view);
10821         }
10822       else
10823         {
10824           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10825
10826           for (list = tree_view->priv->columns; list; list = list->next)
10827             {
10828               column = list->data;
10829               gtk_widget_unmap (column->button);
10830             }
10831           gdk_window_hide (tree_view->priv->header_window);
10832         }
10833     }
10834
10835   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10836   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10837   tree_view->priv->vadjustment->lower = 0;
10838   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10839   gtk_adjustment_changed (tree_view->priv->vadjustment);
10840
10841   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10842
10843   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10844 }
10845
10846 /**
10847  * gtk_tree_view_columns_autosize:
10848  * @tree_view: A #GtkTreeView.
10849  *
10850  * Resizes all columns to their optimal width. Only works after the
10851  * treeview has been realized.
10852  **/
10853 void
10854 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
10855 {
10856   gboolean dirty = FALSE;
10857   GList *list;
10858   GtkTreeViewColumn *column;
10859
10860   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10861
10862   for (list = tree_view->priv->columns; list; list = list->next)
10863     {
10864       column = list->data;
10865       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
10866         continue;
10867       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
10868       dirty = TRUE;
10869     }
10870
10871   if (dirty)
10872     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10873 }
10874
10875 /**
10876  * gtk_tree_view_set_headers_clickable:
10877  * @tree_view: A #GtkTreeView.
10878  * @setting: %TRUE if the columns are clickable.
10879  *
10880  * Allow the column title buttons to be clicked.
10881  **/
10882 void
10883 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
10884                                      gboolean   setting)
10885 {
10886   GList *list;
10887
10888   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10889
10890   for (list = tree_view->priv->columns; list; list = list->next)
10891     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
10892
10893   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
10894 }
10895
10896
10897 /**
10898  * gtk_tree_view_get_headers_clickable:
10899  * @tree_view: A #GtkTreeView.
10900  *
10901  * Returns whether all header columns are clickable.
10902  *
10903  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
10904  *
10905  * Since: 2.10
10906  **/
10907 gboolean
10908 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
10909 {
10910   GList *list;
10911
10912   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10913
10914   for (list = tree_view->priv->columns; list; list = list->next)
10915     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
10916       return FALSE;
10917
10918   return TRUE;
10919 }
10920
10921 /**
10922  * gtk_tree_view_set_rules_hint
10923  * @tree_view: a #GtkTreeView
10924  * @setting: %TRUE if the tree requires reading across rows
10925  *
10926  * This function tells GTK+ that the user interface for your
10927  * application requires users to read across tree rows and associate
10928  * cells with one another. By default, GTK+ will then render the tree
10929  * with alternating row colors. Do <emphasis>not</emphasis> use it
10930  * just because you prefer the appearance of the ruled tree; that's a
10931  * question for the theme. Some themes will draw tree rows in
10932  * alternating colors even when rules are turned off, and users who
10933  * prefer that appearance all the time can choose those themes. You
10934  * should call this function only as a <emphasis>semantic</emphasis>
10935  * hint to the theme engine that your tree makes alternating colors
10936  * useful from a functional standpoint (since it has lots of columns,
10937  * generally).
10938  *
10939  **/
10940 void
10941 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
10942                               gboolean      setting)
10943 {
10944   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10945
10946   setting = setting != FALSE;
10947
10948   if (tree_view->priv->has_rules != setting)
10949     {
10950       tree_view->priv->has_rules = setting;
10951       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
10952     }
10953
10954   g_object_notify (G_OBJECT (tree_view), "rules-hint");
10955 }
10956
10957 /**
10958  * gtk_tree_view_get_rules_hint
10959  * @tree_view: a #GtkTreeView
10960  *
10961  * Gets the setting set by gtk_tree_view_set_rules_hint().
10962  *
10963  * Return value: %TRUE if rules are useful for the user of this tree
10964  **/
10965 gboolean
10966 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
10967 {
10968   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10969
10970   return tree_view->priv->has_rules;
10971 }
10972
10973 /* Public Column functions
10974  */
10975
10976 /**
10977  * gtk_tree_view_append_column:
10978  * @tree_view: A #GtkTreeView.
10979  * @column: The #GtkTreeViewColumn to add.
10980  *
10981  * Appends @column to the list of columns. If @tree_view has "fixed_height"
10982  * mode enabled, then @column must have its "sizing" property set to be
10983  * GTK_TREE_VIEW_COLUMN_FIXED.
10984  *
10985  * Return value: The number of columns in @tree_view after appending.
10986  **/
10987 gint
10988 gtk_tree_view_append_column (GtkTreeView       *tree_view,
10989                              GtkTreeViewColumn *column)
10990 {
10991   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
10992   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
10993   g_return_val_if_fail (column->tree_view == NULL, -1);
10994
10995   return gtk_tree_view_insert_column (tree_view, column, -1);
10996 }
10997
10998
10999 /**
11000  * gtk_tree_view_remove_column:
11001  * @tree_view: A #GtkTreeView.
11002  * @column: The #GtkTreeViewColumn to remove.
11003  *
11004  * Removes @column from @tree_view.
11005  *
11006  * Return value: The number of columns in @tree_view after removing.
11007  **/
11008 gint
11009 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11010                              GtkTreeViewColumn *column)
11011 {
11012   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11013   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11014   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11015
11016   if (tree_view->priv->focus_column == column)
11017     tree_view->priv->focus_column = NULL;
11018
11019   if (tree_view->priv->edited_column == column)
11020     {
11021       gtk_tree_view_stop_editing (tree_view, TRUE);
11022
11023       /* no need to, but just to be sure ... */
11024       tree_view->priv->edited_column = NULL;
11025     }
11026
11027   g_signal_handlers_disconnect_by_func (column,
11028                                         G_CALLBACK (column_sizing_notify),
11029                                         tree_view);
11030
11031   _gtk_tree_view_column_unset_tree_view (column);
11032
11033   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11034   tree_view->priv->n_columns--;
11035
11036   if (GTK_WIDGET_REALIZED (tree_view))
11037     {
11038       GList *list;
11039
11040       _gtk_tree_view_column_unrealize_button (column);
11041       for (list = tree_view->priv->columns; list; list = list->next)
11042         {
11043           GtkTreeViewColumn *tmp_column;
11044
11045           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11046           if (tmp_column->visible)
11047             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11048         }
11049
11050       if (tree_view->priv->n_columns == 0 &&
11051           gtk_tree_view_get_headers_visible (tree_view))
11052         gdk_window_hide (tree_view->priv->header_window);
11053
11054       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11055     }
11056
11057   g_object_unref (column);
11058   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11059
11060   return tree_view->priv->n_columns;
11061 }
11062
11063 /**
11064  * gtk_tree_view_insert_column:
11065  * @tree_view: A #GtkTreeView.
11066  * @column: The #GtkTreeViewColumn to be inserted.
11067  * @position: The position to insert @column in.
11068  *
11069  * This inserts the @column into the @tree_view at @position.  If @position is
11070  * -1, then the column is inserted at the end. If @tree_view has
11071  * "fixed_height" mode enabled, then @column must have its "sizing" property
11072  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11073  *
11074  * Return value: The number of columns in @tree_view after insertion.
11075  **/
11076 gint
11077 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11078                              GtkTreeViewColumn *column,
11079                              gint               position)
11080 {
11081   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11082   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11083   g_return_val_if_fail (column->tree_view == NULL, -1);
11084
11085   if (tree_view->priv->fixed_height_mode)
11086     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11087                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11088
11089   g_object_ref_sink (column);
11090
11091   if (tree_view->priv->n_columns == 0 &&
11092       GTK_WIDGET_REALIZED (tree_view) &&
11093       gtk_tree_view_get_headers_visible (tree_view))
11094     {
11095       gdk_window_show (tree_view->priv->header_window);
11096     }
11097
11098   g_signal_connect (column, "notify::sizing",
11099                     G_CALLBACK (column_sizing_notify), tree_view);
11100
11101   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11102                                             column, position);
11103   tree_view->priv->n_columns++;
11104
11105   _gtk_tree_view_column_set_tree_view (column, tree_view);
11106
11107   if (GTK_WIDGET_REALIZED (tree_view))
11108     {
11109       GList *list;
11110
11111       _gtk_tree_view_column_realize_button (column);
11112
11113       for (list = tree_view->priv->columns; list; list = list->next)
11114         {
11115           column = GTK_TREE_VIEW_COLUMN (list->data);
11116           if (column->visible)
11117             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11118         }
11119       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11120     }
11121
11122   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11123
11124   return tree_view->priv->n_columns;
11125 }
11126
11127 /**
11128  * gtk_tree_view_insert_column_with_attributes:
11129  * @tree_view: A #GtkTreeView
11130  * @position: The position to insert the new column in.
11131  * @title: The title to set the header to.
11132  * @cell: The #GtkCellRenderer.
11133  * @Varargs: A %NULL-terminated list of attributes.
11134  *
11135  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11136  * @position.  If @position is -1, then the newly created column is inserted at
11137  * the end.  The column is initialized with the attributes given. If @tree_view
11138  * has "fixed_height" mode enabled, then the new column will have its sizing
11139  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11140  *
11141  * Return value: The number of columns in @tree_view after insertion.
11142  **/
11143 gint
11144 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11145                                              gint             position,
11146                                              const gchar     *title,
11147                                              GtkCellRenderer *cell,
11148                                              ...)
11149 {
11150   GtkTreeViewColumn *column;
11151   gchar *attribute;
11152   va_list args;
11153   gint column_id;
11154
11155   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11156
11157   column = gtk_tree_view_column_new ();
11158   if (tree_view->priv->fixed_height_mode)
11159     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11160
11161   gtk_tree_view_column_set_title (column, title);
11162   gtk_tree_view_column_pack_start (column, cell, TRUE);
11163
11164   va_start (args, cell);
11165
11166   attribute = va_arg (args, gchar *);
11167
11168   while (attribute != NULL)
11169     {
11170       column_id = va_arg (args, gint);
11171       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11172       attribute = va_arg (args, gchar *);
11173     }
11174
11175   va_end (args);
11176
11177   gtk_tree_view_insert_column (tree_view, column, position);
11178
11179   return tree_view->priv->n_columns;
11180 }
11181
11182 /**
11183  * gtk_tree_view_insert_column_with_data_func:
11184  * @tree_view: a #GtkTreeView
11185  * @position: Position to insert, -1 for append
11186  * @title: column title
11187  * @cell: cell renderer for column
11188  * @func: function to set attributes of cell renderer
11189  * @data: data for @func
11190  * @dnotify: destroy notifier for @data
11191  *
11192  * Convenience function that inserts a new column into the #GtkTreeView
11193  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11194  * attributes (normally using data from the model). See also
11195  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11196  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11197  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11198  *
11199  * Return value: number of columns in the tree view post-insert
11200  **/
11201 gint
11202 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11203                                              gint                       position,
11204                                              const gchar               *title,
11205                                              GtkCellRenderer           *cell,
11206                                              GtkTreeCellDataFunc        func,
11207                                              gpointer                   data,
11208                                              GDestroyNotify             dnotify)
11209 {
11210   GtkTreeViewColumn *column;
11211
11212   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11213
11214   column = gtk_tree_view_column_new ();
11215   if (tree_view->priv->fixed_height_mode)
11216     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11217
11218   gtk_tree_view_column_set_title (column, title);
11219   gtk_tree_view_column_pack_start (column, cell, TRUE);
11220   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11221
11222   gtk_tree_view_insert_column (tree_view, column, position);
11223
11224   return tree_view->priv->n_columns;
11225 }
11226
11227 /**
11228  * gtk_tree_view_get_column:
11229  * @tree_view: A #GtkTreeView.
11230  * @n: The position of the column, counting from 0.
11231  *
11232  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11233  *
11234  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11235  * range of columns.
11236  **/
11237 GtkTreeViewColumn *
11238 gtk_tree_view_get_column (GtkTreeView *tree_view,
11239                           gint         n)
11240 {
11241   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11242
11243   if (n < 0 || n >= tree_view->priv->n_columns)
11244     return NULL;
11245
11246   if (tree_view->priv->columns == NULL)
11247     return NULL;
11248
11249   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11250 }
11251
11252 /**
11253  * gtk_tree_view_get_columns:
11254  * @tree_view: A #GtkTreeView
11255  *
11256  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11257  * The returned list must be freed with g_list_free ().
11258  *
11259  * Return value: A list of #GtkTreeViewColumn s
11260  **/
11261 GList *
11262 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11263 {
11264   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11265
11266   return g_list_copy (tree_view->priv->columns);
11267 }
11268
11269 /**
11270  * gtk_tree_view_move_column_after:
11271  * @tree_view: A #GtkTreeView
11272  * @column: The #GtkTreeViewColumn to be moved.
11273  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11274  *
11275  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11276  * @column is placed in the first position.
11277  **/
11278 void
11279 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11280                                  GtkTreeViewColumn *column,
11281                                  GtkTreeViewColumn *base_column)
11282 {
11283   GList *column_list_el, *base_el = NULL;
11284
11285   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11286
11287   column_list_el = g_list_find (tree_view->priv->columns, column);
11288   g_return_if_fail (column_list_el != NULL);
11289
11290   if (base_column)
11291     {
11292       base_el = g_list_find (tree_view->priv->columns, base_column);
11293       g_return_if_fail (base_el != NULL);
11294     }
11295
11296   if (column_list_el->prev == base_el)
11297     return;
11298
11299   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11300   if (base_el == NULL)
11301     {
11302       column_list_el->prev = NULL;
11303       column_list_el->next = tree_view->priv->columns;
11304       if (column_list_el->next)
11305         column_list_el->next->prev = column_list_el;
11306       tree_view->priv->columns = column_list_el;
11307     }
11308   else
11309     {
11310       column_list_el->prev = base_el;
11311       column_list_el->next = base_el->next;
11312       if (column_list_el->next)
11313         column_list_el->next->prev = column_list_el;
11314       base_el->next = column_list_el;
11315     }
11316
11317   if (GTK_WIDGET_REALIZED (tree_view))
11318     {
11319       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11320       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view));
11321     }
11322
11323   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11324 }
11325
11326 /**
11327  * gtk_tree_view_set_expander_column:
11328  * @tree_view: A #GtkTreeView
11329  * @column: %NULL, or the column to draw the expander arrow at.
11330  *
11331  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11332  * If @column is %NULL, then the expander arrow is always at the first
11333  * visible column.
11334  *
11335  * If you do not want expander arrow to appear in your tree, set the
11336  * expander column to a hidden column.
11337  **/
11338 void
11339 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11340                                    GtkTreeViewColumn *column)
11341 {
11342   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11343   if (column != NULL)
11344     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
11345
11346   if (tree_view->priv->expander_column != column)
11347     {
11348       GList *list;
11349
11350       if (column)
11351         {
11352           /* Confirm that column is in tree_view */
11353           for (list = tree_view->priv->columns; list; list = list->next)
11354             if (list->data == column)
11355               break;
11356           g_return_if_fail (list != NULL);
11357         }
11358
11359       tree_view->priv->expander_column = column;
11360       g_object_notify (G_OBJECT (tree_view), "expander-column");
11361     }
11362 }
11363
11364 /**
11365  * gtk_tree_view_get_expander_column:
11366  * @tree_view: A #GtkTreeView
11367  *
11368  * Returns the column that is the current expander column.  This
11369  * column has the expander arrow drawn next to it.
11370  *
11371  * Return value: The expander column.
11372  **/
11373 GtkTreeViewColumn *
11374 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11375 {
11376   GList *list;
11377
11378   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11379
11380   for (list = tree_view->priv->columns; list; list = list->next)
11381     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11382       return (GtkTreeViewColumn *) list->data;
11383   return NULL;
11384 }
11385
11386
11387 /**
11388  * gtk_tree_view_set_column_drag_function:
11389  * @tree_view: A #GtkTreeView.
11390  * @func: A function to determine which columns are reorderable, or %NULL.
11391  * @user_data: User data to be passed to @func, or %NULL
11392  * @destroy: Destroy notifier for @user_data, or %NULL
11393  *
11394  * Sets a user function for determining where a column may be dropped when
11395  * dragged.  This function is called on every column pair in turn at the
11396  * beginning of a column drag to determine where a drop can take place.  The
11397  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11398  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11399  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11400  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11401  * @tree_view reverts to the default behavior of allowing all columns to be
11402  * dropped everywhere.
11403  **/
11404 void
11405 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11406                                         GtkTreeViewColumnDropFunc  func,
11407                                         gpointer                   user_data,
11408                                         GtkDestroyNotify           destroy)
11409 {
11410   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11411
11412   if (tree_view->priv->column_drop_func_data_destroy)
11413     (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
11414
11415   tree_view->priv->column_drop_func = func;
11416   tree_view->priv->column_drop_func_data = user_data;
11417   tree_view->priv->column_drop_func_data_destroy = destroy;
11418 }
11419
11420 /**
11421  * gtk_tree_view_scroll_to_point:
11422  * @tree_view: a #GtkTreeView
11423  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11424  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11425  *
11426  * Scrolls the tree view such that the top-left corner of the visible
11427  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11428  * in tree coordinates.  The @tree_view must be realized before
11429  * this function is called.  If it isn't, you probably want to be
11430  * using gtk_tree_view_scroll_to_cell().
11431  *
11432  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11433  **/
11434 void
11435 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11436                                gint         tree_x,
11437                                gint         tree_y)
11438 {
11439   GtkAdjustment *hadj;
11440   GtkAdjustment *vadj;
11441
11442   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11443   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11444
11445   hadj = tree_view->priv->hadjustment;
11446   vadj = tree_view->priv->vadjustment;
11447
11448   if (tree_x != -1)
11449     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11450   if (tree_y != -1)
11451     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11452 }
11453
11454 /**
11455  * gtk_tree_view_scroll_to_cell:
11456  * @tree_view: A #GtkTreeView.
11457  * @path: The path of the row to move to, or %NULL.
11458  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11459  * @use_align: whether to use alignment arguments, or %FALSE.
11460  * @row_align: The vertical alignment of the row specified by @path.
11461  * @col_align: The horizontal alignment of the column specified by @column.
11462  *
11463  * Moves the alignments of @tree_view to the position specified by @column and
11464  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11465  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11466  * or @path need to be non-%NULL.  @row_align determines where the row is
11467  * placed, and @col_align determines where @column is placed.  Both are expected
11468  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11469  * right/bottom alignment, 0.5 means center.
11470  *
11471  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11472  * tree does the minimum amount of work to scroll the cell onto the screen.
11473  * This means that the cell will be scrolled to the edge closest to its current
11474  * position.  If the cell is currently visible on the screen, nothing is done.
11475  *
11476  * This function only works if the model is set, and @path is a valid row on the
11477  * model.  If the model changes before the @tree_view is realized, the centered
11478  * path will be modified to reflect this change.
11479  **/
11480 void
11481 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11482                               GtkTreePath       *path,
11483                               GtkTreeViewColumn *column,
11484                               gboolean           use_align,
11485                               gfloat             row_align,
11486                               gfloat             col_align)
11487 {
11488   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11489   g_return_if_fail (tree_view->priv->model != NULL);
11490   g_return_if_fail (tree_view->priv->tree != NULL);
11491   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11492   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11493   g_return_if_fail (path != NULL || column != NULL);
11494
11495 #if 0
11496   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11497            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11498 #endif
11499   row_align = CLAMP (row_align, 0.0, 1.0);
11500   col_align = CLAMP (col_align, 0.0, 1.0);
11501
11502
11503   /* Note: Despite the benefits that come from having one code path for the
11504    * scrolling code, we short-circuit validate_visible_area's immplementation as
11505    * it is much slower than just going to the point.
11506    */
11507   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11508       ! GTK_WIDGET_REALIZED (tree_view) ||
11509       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11510       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11511     {
11512       if (tree_view->priv->scroll_to_path)
11513         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11514
11515       tree_view->priv->scroll_to_path = NULL;
11516       tree_view->priv->scroll_to_column = NULL;
11517
11518       if (path)
11519         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11520       if (column)
11521         tree_view->priv->scroll_to_column = column;
11522       tree_view->priv->scroll_to_use_align = use_align;
11523       tree_view->priv->scroll_to_row_align = row_align;
11524       tree_view->priv->scroll_to_col_align = col_align;
11525
11526       install_presize_handler (tree_view);
11527     }
11528   else
11529     {
11530       GdkRectangle cell_rect;
11531       GdkRectangle vis_rect;
11532       gint dest_x, dest_y;
11533
11534       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11535       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11536
11537       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11538
11539       dest_x = vis_rect.x;
11540       dest_y = vis_rect.y;
11541
11542       if (column)
11543         {
11544           if (use_align)
11545             {
11546               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11547             }
11548           else
11549             {
11550               if (cell_rect.x < vis_rect.x)
11551                 dest_x = cell_rect.x;
11552               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11553                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11554             }
11555         }
11556
11557       if (path)
11558         {
11559           if (use_align)
11560             {
11561               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11562               dest_y = MAX (dest_y, 0);
11563             }
11564           else
11565             {
11566               if (cell_rect.y < vis_rect.y)
11567                 dest_y = cell_rect.y;
11568               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11569                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11570             }
11571         }
11572
11573       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11574     }
11575 }
11576
11577 /**
11578  * gtk_tree_view_row_activated:
11579  * @tree_view: A #GtkTreeView
11580  * @path: The #GtkTreePath to be activated.
11581  * @column: The #GtkTreeViewColumn to be activated.
11582  *
11583  * Activates the cell determined by @path and @column.
11584  **/
11585 void
11586 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11587                              GtkTreePath       *path,
11588                              GtkTreeViewColumn *column)
11589 {
11590   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11591
11592   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11593 }
11594
11595
11596 static void
11597 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11598                                           GtkRBNode *node,
11599                                           gpointer   data)
11600 {
11601   GtkTreeView *tree_view = data;
11602
11603   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11604       node->children)
11605     {
11606       GtkTreePath *path;
11607       GtkTreeIter iter;
11608
11609       path = _gtk_tree_view_find_path (tree_view, tree, node);
11610       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11611
11612       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11613
11614       gtk_tree_path_free (path);
11615     }
11616
11617   if (node->children)
11618     _gtk_rbtree_traverse (node->children,
11619                           node->children->root,
11620                           G_PRE_ORDER,
11621                           gtk_tree_view_expand_all_emission_helper,
11622                           tree_view);
11623 }
11624 /**
11625  * gtk_tree_view_expand_all:
11626  * @tree_view: A #GtkTreeView.
11627  *
11628  * Recursively expands all nodes in the @tree_view.
11629  **/
11630 void
11631 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11632 {
11633   GtkTreePath *path;
11634   GtkRBTree *tree;
11635   GtkRBNode *node;
11636
11637   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11638
11639   if (tree_view->priv->tree == NULL)
11640     return;
11641
11642   path = gtk_tree_path_new_first ();
11643   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11644
11645   while (node)
11646     {
11647       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11648       node = _gtk_rbtree_next (tree, node);
11649       gtk_tree_path_next (path);
11650   }
11651
11652   gtk_tree_path_free (path);
11653 }
11654
11655 /* Timeout to animate the expander during expands and collapses */
11656 static gboolean
11657 expand_collapse_timeout (gpointer data)
11658 {
11659   return do_expand_collapse (data);
11660 }
11661
11662 static gboolean
11663 do_expand_collapse (GtkTreeView *tree_view)
11664 {
11665   GtkRBNode *node;
11666   GtkRBTree *tree;
11667   gboolean expanding;
11668   gboolean redraw;
11669
11670   redraw = FALSE;
11671   expanding = TRUE;
11672
11673   node = tree_view->priv->expanded_collapsed_node;
11674   tree = tree_view->priv->expanded_collapsed_tree;
11675
11676   if (node->children == NULL)
11677     expanding = FALSE;
11678
11679   if (expanding)
11680     {
11681       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11682         {
11683           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11684           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11685
11686           redraw = TRUE;
11687
11688         }
11689       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11690         {
11691           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11692
11693           redraw = TRUE;
11694         }
11695     }
11696   else
11697     {
11698       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11699         {
11700           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11701           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11702
11703           redraw = TRUE;
11704         }
11705       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11706         {
11707           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11708
11709           redraw = TRUE;
11710
11711         }
11712     }
11713
11714   if (redraw)
11715     {
11716       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11717
11718       return TRUE;
11719     }
11720
11721   return FALSE;
11722 }
11723
11724 /**
11725  * gtk_tree_view_collapse_all:
11726  * @tree_view: A #GtkTreeView.
11727  *
11728  * Recursively collapses all visible, expanded nodes in @tree_view.
11729  **/
11730 void
11731 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11732 {
11733   GtkRBTree *tree;
11734   GtkRBNode *node;
11735   GtkTreePath *path;
11736   gint *indices;
11737
11738   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11739
11740   if (tree_view->priv->tree == NULL)
11741     return;
11742
11743   path = gtk_tree_path_new ();
11744   gtk_tree_path_down (path);
11745   indices = gtk_tree_path_get_indices (path);
11746
11747   tree = tree_view->priv->tree;
11748   node = tree->root;
11749   while (node && node->left != tree->nil)
11750     node = node->left;
11751
11752   while (node)
11753     {
11754       if (node->children)
11755         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11756       indices[0]++;
11757       node = _gtk_rbtree_next (tree, node);
11758     }
11759
11760   gtk_tree_path_free (path);
11761 }
11762
11763 /**
11764  * gtk_tree_view_expand_to_path:
11765  * @tree_view: A #GtkTreeView.
11766  * @path: path to a row.
11767  *
11768  * Expands the row at @path. This will also expand all parent rows of
11769  * @path as necessary.
11770  *
11771  * Since: 2.2
11772  **/
11773 void
11774 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11775                               GtkTreePath *path)
11776 {
11777   gint i, depth;
11778   gint *indices;
11779   GtkTreePath *tmp;
11780
11781   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11782   g_return_if_fail (path != NULL);
11783
11784   depth = gtk_tree_path_get_depth (path);
11785   indices = gtk_tree_path_get_indices (path);
11786
11787   tmp = gtk_tree_path_new ();
11788   g_return_if_fail (tmp != NULL);
11789
11790   for (i = 0; i < depth; i++)
11791     {
11792       gtk_tree_path_append_index (tmp, indices[i]);
11793       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11794     }
11795
11796   gtk_tree_path_free (tmp);
11797 }
11798
11799 /* FIXME the bool return values for expand_row and collapse_row are
11800  * not analagous; they should be TRUE if the row had children and
11801  * was not already in the requested state.
11802  */
11803
11804
11805 static gboolean
11806 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
11807                                GtkTreePath *path,
11808                                GtkRBTree   *tree,
11809                                GtkRBNode   *node,
11810                                gboolean     open_all,
11811                                gboolean     animate)
11812 {
11813   GtkTreeIter iter;
11814   GtkTreeIter temp;
11815   gboolean expand;
11816
11817   if (animate)
11818     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11819                   "gtk-enable-animations", &animate,
11820                   NULL);
11821
11822   remove_auto_expand_timeout (tree_view);
11823
11824   if (node->children && !open_all)
11825     return FALSE;
11826
11827   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
11828     return FALSE;
11829
11830   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11831   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11832     return FALSE;
11833
11834
11835    if (node->children && open_all)
11836     {
11837       gboolean retval = FALSE;
11838       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
11839
11840       gtk_tree_path_append_index (tmp_path, 0);
11841       tree = node->children;
11842       node = tree->root;
11843       while (node->left != tree->nil)
11844         node = node->left;
11845       /* try to expand the children */
11846       do
11847         {
11848          gboolean t;
11849          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
11850                                             TRUE, animate);
11851          if (t)
11852            retval = TRUE;
11853
11854          gtk_tree_path_next (tmp_path);
11855          node = _gtk_rbtree_next (tree, node);
11856        }
11857       while (node != NULL);
11858
11859       gtk_tree_path_free (tmp_path);
11860
11861       return retval;
11862     }
11863
11864   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
11865
11866   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11867     return FALSE;
11868
11869   if (expand)
11870     return FALSE;
11871
11872   node->children = _gtk_rbtree_new ();
11873   node->children->parent_tree = tree;
11874   node->children->parent_node = node;
11875
11876   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
11877
11878   gtk_tree_view_build_tree (tree_view,
11879                             node->children,
11880                             &temp,
11881                             gtk_tree_path_get_depth (path) + 1,
11882                             open_all);
11883
11884   if (tree_view->priv->expand_collapse_timeout)
11885     {
11886       g_source_remove (tree_view->priv->expand_collapse_timeout);
11887       tree_view->priv->expand_collapse_timeout = 0;
11888     }
11889
11890   if (tree_view->priv->expanded_collapsed_node != NULL)
11891     {
11892       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11893       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11894
11895       tree_view->priv->expanded_collapsed_node = NULL;
11896     }
11897
11898   if (animate)
11899     {
11900       tree_view->priv->expand_collapse_timeout = gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11901       tree_view->priv->expanded_collapsed_node = node;
11902       tree_view->priv->expanded_collapsed_tree = tree;
11903
11904       GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11905     }
11906
11907   install_presize_handler (tree_view);
11908
11909   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11910   if (open_all && node->children)
11911     {
11912       _gtk_rbtree_traverse (node->children,
11913                             node->children->root,
11914                             G_PRE_ORDER,
11915                             gtk_tree_view_expand_all_emission_helper,
11916                             tree_view);
11917     }
11918   return TRUE;
11919 }
11920
11921
11922 /**
11923  * gtk_tree_view_expand_row:
11924  * @tree_view: a #GtkTreeView
11925  * @path: path to a row
11926  * @open_all: whether to recursively expand, or just expand immediate children
11927  *
11928  * Opens the row so its children are visible.
11929  *
11930  * Return value: %TRUE if the row existed and had children
11931  **/
11932 gboolean
11933 gtk_tree_view_expand_row (GtkTreeView *tree_view,
11934                           GtkTreePath *path,
11935                           gboolean     open_all)
11936 {
11937   GtkRBTree *tree;
11938   GtkRBNode *node;
11939
11940   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11941   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
11942   g_return_val_if_fail (path != NULL, FALSE);
11943
11944   if (_gtk_tree_view_find_node (tree_view,
11945                                 path,
11946                                 &tree,
11947                                 &node))
11948     return FALSE;
11949
11950   if (tree != NULL)
11951     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
11952   else
11953     return FALSE;
11954 }
11955
11956 static gboolean
11957 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
11958                                  GtkTreePath *path,
11959                                  GtkRBTree   *tree,
11960                                  GtkRBNode   *node,
11961                                  gboolean     animate)
11962 {
11963   GtkTreeIter iter;
11964   GtkTreeIter children;
11965   gboolean collapse;
11966   gint x, y;
11967   GList *list;
11968   GdkWindow *child, *parent;
11969
11970   if (animate)
11971     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11972                   "gtk-enable-animations", &animate,
11973                   NULL);
11974
11975   remove_auto_expand_timeout (tree_view);
11976
11977   if (node->children == NULL)
11978     return FALSE;
11979
11980   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11981
11982   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
11983
11984   if (collapse)
11985     return FALSE;
11986
11987   /* if the prelighted node is a child of us, we want to unprelight it.  We have
11988    * a chance to prelight the correct node below */
11989
11990   if (tree_view->priv->prelight_tree)
11991     {
11992       GtkRBTree *parent_tree;
11993       GtkRBNode *parent_node;
11994
11995       parent_tree = tree_view->priv->prelight_tree->parent_tree;
11996       parent_node = tree_view->priv->prelight_tree->parent_node;
11997       while (parent_tree)
11998         {
11999           if (parent_tree == tree && parent_node == node)
12000             {
12001               ensure_unprelighted (tree_view);
12002               break;
12003             }
12004           parent_node = parent_tree->parent_node;
12005           parent_tree = parent_tree->parent_tree;
12006         }
12007     }
12008
12009   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12010
12011   for (list = tree_view->priv->columns; list; list = list->next)
12012     {
12013       GtkTreeViewColumn *column = list->data;
12014
12015       if (column->visible == FALSE)
12016         continue;
12017       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12018         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12019     }
12020
12021   if (tree_view->priv->destroy_count_func)
12022     {
12023       GtkTreePath *child_path;
12024       gint child_count = 0;
12025       child_path = gtk_tree_path_copy (path);
12026       gtk_tree_path_down (child_path);
12027       if (node->children)
12028         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12029       (* tree_view->priv->destroy_count_func) (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12030       gtk_tree_path_free (child_path);
12031     }
12032
12033   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12034     {
12035       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12036
12037       if (gtk_tree_path_is_ancestor (path, cursor_path))
12038         {
12039           gtk_tree_row_reference_free (tree_view->priv->cursor);
12040           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12041                                                                       tree_view->priv->model,
12042                                                                       path);
12043         }
12044       gtk_tree_path_free (cursor_path);
12045     }
12046
12047   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12048     {
12049       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12050       if (gtk_tree_path_is_ancestor (path, anchor_path))
12051         {
12052           gtk_tree_row_reference_free (tree_view->priv->anchor);
12053           tree_view->priv->anchor = NULL;
12054         }
12055       gtk_tree_path_free (anchor_path);
12056     }
12057
12058   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12059     {
12060       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12061       if (gtk_tree_path_is_ancestor (path, lsc))
12062         {
12063           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12064           tree_view->priv->last_button_press = NULL;
12065         }
12066       gtk_tree_path_free (lsc);
12067     }
12068
12069   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12070     {
12071       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12072       if (gtk_tree_path_is_ancestor (path, lsc))
12073         {
12074           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12075           tree_view->priv->last_button_press_2 = NULL;
12076         }
12077       gtk_tree_path_free (lsc);
12078     }
12079
12080   if (tree_view->priv->expanded_collapsed_node != NULL)
12081     {
12082       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
12083       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12084
12085       tree_view->priv->expanded_collapsed_node = NULL;
12086     }
12087
12088   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12089     {
12090       _gtk_rbtree_remove (node->children);
12091       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12092     }
12093   else
12094     _gtk_rbtree_remove (node->children);
12095
12096   if (tree_view->priv->expand_collapse_timeout)
12097     {
12098       g_source_remove (tree_view->priv->expand_collapse_timeout);
12099       tree_view->priv->expand_collapse_timeout = 0;
12100     }
12101
12102   if (animate)
12103     {
12104       tree_view->priv->expand_collapse_timeout = gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
12105       tree_view->priv->expanded_collapsed_node = node;
12106       tree_view->priv->expanded_collapsed_tree = tree;
12107
12108       GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
12109     }
12110
12111   if (GTK_WIDGET_MAPPED (tree_view))
12112     {
12113       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12114     }
12115
12116   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12117
12118   if (GTK_WIDGET_MAPPED (tree_view))
12119     {
12120       /* now that we've collapsed all rows, we want to try to set the prelight
12121        * again. To do this, we fake a motion event and send it to ourselves. */
12122
12123       child = tree_view->priv->bin_window;
12124       parent = gdk_window_get_parent (child);
12125
12126       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12127         {
12128           GdkEventMotion event;
12129           gint child_x, child_y;
12130
12131           gdk_window_get_position (child, &child_x, &child_y);
12132
12133           event.window = tree_view->priv->bin_window;
12134           event.x = x - child_x;
12135           event.y = y - child_y;
12136
12137           /* despite the fact this isn't a real event, I'm almost positive it will
12138            * never trigger a drag event.  maybe_drag is the only function that uses
12139            * more than just event.x and event.y. */
12140           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12141         }
12142     }
12143
12144   return TRUE;
12145 }
12146
12147 /**
12148  * gtk_tree_view_collapse_row:
12149  * @tree_view: a #GtkTreeView
12150  * @path: path to a row in the @tree_view
12151  *
12152  * Collapses a row (hides its child rows, if they exist).
12153  *
12154  * Return value: %TRUE if the row was collapsed.
12155  **/
12156 gboolean
12157 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12158                             GtkTreePath *path)
12159 {
12160   GtkRBTree *tree;
12161   GtkRBNode *node;
12162
12163   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12164   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12165   g_return_val_if_fail (path != NULL, FALSE);
12166
12167   if (_gtk_tree_view_find_node (tree_view,
12168                                 path,
12169                                 &tree,
12170                                 &node))
12171     return FALSE;
12172
12173   if (tree == NULL || node->children == NULL)
12174     return FALSE;
12175
12176   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12177 }
12178
12179 static void
12180 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12181                                         GtkRBTree              *tree,
12182                                         GtkTreePath            *path,
12183                                         GtkTreeViewMappingFunc  func,
12184                                         gpointer                user_data)
12185 {
12186   GtkRBNode *node;
12187
12188   if (tree == NULL || tree->root == NULL)
12189     return;
12190
12191   node = tree->root;
12192
12193   while (node && node->left != tree->nil)
12194     node = node->left;
12195
12196   while (node)
12197     {
12198       if (node->children)
12199         {
12200           (* func) (tree_view, path, user_data);
12201           gtk_tree_path_down (path);
12202           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12203           gtk_tree_path_up (path);
12204         }
12205       gtk_tree_path_next (path);
12206       node = _gtk_rbtree_next (tree, node);
12207     }
12208 }
12209
12210 /**
12211  * gtk_tree_view_map_expanded_rows:
12212  * @tree_view: A #GtkTreeView
12213  * @func: A function to be called
12214  * @data: User data to be passed to the function.
12215  *
12216  * Calls @func on all expanded rows.
12217  **/
12218 void
12219 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12220                                  GtkTreeViewMappingFunc  func,
12221                                  gpointer                user_data)
12222 {
12223   GtkTreePath *path;
12224
12225   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12226   g_return_if_fail (func != NULL);
12227
12228   path = gtk_tree_path_new_first ();
12229
12230   gtk_tree_view_map_expanded_rows_helper (tree_view,
12231                                           tree_view->priv->tree,
12232                                           path, func, user_data);
12233
12234   gtk_tree_path_free (path);
12235 }
12236
12237 /**
12238  * gtk_tree_view_row_expanded:
12239  * @tree_view: A #GtkTreeView.
12240  * @path: A #GtkTreePath to test expansion state.
12241  *
12242  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12243  *
12244  * Return value: %TRUE if #path is expanded.
12245  **/
12246 gboolean
12247 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12248                             GtkTreePath *path)
12249 {
12250   GtkRBTree *tree;
12251   GtkRBNode *node;
12252
12253   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12254   g_return_val_if_fail (path != NULL, FALSE);
12255
12256   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12257
12258   if (node == NULL)
12259     return FALSE;
12260
12261   return (node->children != NULL);
12262 }
12263
12264 static const GtkTargetEntry row_targets[] = {
12265   { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12266 };
12267
12268
12269 /**
12270  * gtk_tree_view_get_reorderable:
12271  * @tree_view: a #GtkTreeView
12272  *
12273  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12274  * gtk_tree_view_set_reorderable().
12275  *
12276  * Return value: %TRUE if the tree can be reordered.
12277  **/
12278 gboolean
12279 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12280 {
12281   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12282
12283   return tree_view->priv->reorderable;
12284 }
12285
12286 /**
12287  * gtk_tree_view_set_reorderable:
12288  * @tree_view: A #GtkTreeView.
12289  * @reorderable: %TRUE, if the tree can be reordered.
12290  *
12291  * This function is a convenience function to allow you to reorder models that
12292  * support the #GtkDragSourceIface and the #GtkDragDestIface.  Both
12293  * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
12294  * the user can reorder the model by dragging and dropping rows.  The
12295  * developer can listen to these changes by connecting to the model's
12296  * row_inserted and row_deleted signals.
12297  *
12298  * This function does not give you any degree of control over the order -- any
12299  * reordering is allowed.  If more control is needed, you should probably
12300  * handle drag and drop manually.
12301  **/
12302 void
12303 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12304                                gboolean     reorderable)
12305 {
12306   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12307
12308   reorderable = reorderable != FALSE;
12309
12310   if (tree_view->priv->reorderable == reorderable)
12311     return;
12312
12313   if (reorderable)
12314     {
12315       gtk_tree_view_enable_model_drag_source (tree_view,
12316                                               GDK_BUTTON1_MASK,
12317                                               row_targets,
12318                                               G_N_ELEMENTS (row_targets),
12319                                               GDK_ACTION_MOVE);
12320       gtk_tree_view_enable_model_drag_dest (tree_view,
12321                                             row_targets,
12322                                             G_N_ELEMENTS (row_targets),
12323                                             GDK_ACTION_MOVE);
12324     }
12325   else
12326     {
12327       gtk_tree_view_unset_rows_drag_source (tree_view);
12328       gtk_tree_view_unset_rows_drag_dest (tree_view);
12329     }
12330
12331   tree_view->priv->reorderable = reorderable;
12332
12333   g_object_notify (G_OBJECT (tree_view), "reorderable");
12334 }
12335
12336 static void
12337 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12338                                GtkTreePath     *path,
12339                                gboolean         clear_and_select,
12340                                gboolean         clamp_node)
12341 {
12342   GtkRBTree *tree = NULL;
12343   GtkRBNode *node = NULL;
12344
12345   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12346     {
12347       GtkTreePath *cursor_path;
12348       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12349       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12350       gtk_tree_path_free (cursor_path);
12351     }
12352
12353   gtk_tree_row_reference_free (tree_view->priv->cursor);
12354
12355   tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12356                                                               tree_view->priv->model,
12357                                                               path);
12358   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12359   if (tree != NULL)
12360     {
12361       GtkRBTree *new_tree = NULL;
12362       GtkRBNode *new_node = NULL;
12363
12364       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12365         {
12366           GtkTreeSelectMode mode = 0;
12367
12368           if (tree_view->priv->ctrl_pressed)
12369             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12370           if (tree_view->priv->shift_pressed)
12371             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12372
12373           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12374                                                     node, tree, path, mode,
12375                                                     FALSE);
12376         }
12377
12378       /* We have to re-find tree and node here again, somebody might have
12379        * cleared the node or the whole tree in the GtkTreeSelection::changed
12380        * callback. If the nodes differ we bail out here.
12381        */
12382       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12383
12384       if (tree != new_tree || node != new_node)
12385         return;
12386
12387       if (clamp_node)
12388         {
12389           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12390           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12391         }
12392     }
12393
12394   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12395 }
12396
12397 /**
12398  * gtk_tree_view_get_cursor:
12399  * @tree_view: A #GtkTreeView
12400  * @path: A pointer to be filled with the current cursor path, or %NULL
12401  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12402  *
12403  * Fills in @path and @focus_column with the current path and focus column.  If
12404  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12405  * currently has focus, then *@focus_column will be %NULL.
12406  *
12407  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12408  * you are done with it.
12409  **/
12410 void
12411 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12412                           GtkTreePath       **path,
12413                           GtkTreeViewColumn **focus_column)
12414 {
12415   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12416
12417   if (path)
12418     {
12419       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12420         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12421       else
12422         *path = NULL;
12423     }
12424
12425   if (focus_column)
12426     {
12427       *focus_column = tree_view->priv->focus_column;
12428     }
12429 }
12430
12431 /**
12432  * gtk_tree_view_set_cursor:
12433  * @tree_view: A #GtkTreeView
12434  * @path: A #GtkTreePath
12435  * @focus_column: A #GtkTreeViewColumn, or %NULL
12436  * @start_editing: %TRUE if the specified cell should start being edited.
12437  *
12438  * Sets the current keyboard focus to be at @path, and selects it.  This is
12439  * useful when you want to focus the user's attention on a particular row.  If
12440  * @focus_column is not %NULL, then focus is given to the column specified by
12441  * it. Additionally, if @focus_column is specified, and @start_editing is
12442  * %TRUE, then editing should be started in the specified cell.
12443  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12444  * in order to give keyboard focus to the widget.  Please note that editing
12445  * can only happen when the widget is realized.
12446  **/
12447 void
12448 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12449                           GtkTreePath       *path,
12450                           GtkTreeViewColumn *focus_column,
12451                           gboolean           start_editing)
12452 {
12453   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12454                                     NULL, start_editing);
12455 }
12456
12457 /**
12458  * gtk_tree_view_set_cursor_on_cell:
12459  * @tree_view: A #GtkTreeView
12460  * @path: A #GtkTreePath
12461  * @focus_column: A #GtkTreeViewColumn, or %NULL
12462  * @focus_cell: A #GtkCellRenderer, or %NULL
12463  * @start_editing: %TRUE if the specified cell should start being edited.
12464  *
12465  * Sets the current keyboard focus to be at @path, and selects it.  This is
12466  * useful when you want to focus the user's attention on a particular row.  If
12467  * @focus_column is not %NULL, then focus is given to the column specified by
12468  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12469  * contains 2 or more editable or activatable cells, then focus is given to
12470  * the cell specified by @focus_cell. Additionally, if @focus_column is
12471  * specified, and @start_editing is %TRUE, then editing should be started in
12472  * the specified cell.  This function is often followed by
12473  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12474  * widget.  Please note that editing can only happen when the widget is
12475  * realized.
12476  *
12477  * Since: 2.2
12478  **/
12479 void
12480 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12481                                   GtkTreePath       *path,
12482                                   GtkTreeViewColumn *focus_column,
12483                                   GtkCellRenderer   *focus_cell,
12484                                   gboolean           start_editing)
12485 {
12486   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12487   g_return_if_fail (path != NULL);
12488   if (focus_column)
12489     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (focus_column));
12490   if (focus_cell)
12491     {
12492       g_return_if_fail (focus_column);
12493       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12494     }
12495
12496   /* cancel the current editing, if it exists */
12497   if (tree_view->priv->edited_column &&
12498       tree_view->priv->edited_column->editable_widget)
12499     gtk_tree_view_stop_editing (tree_view, TRUE);
12500
12501   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12502
12503   if (focus_column && focus_column->visible)
12504     {
12505       GList *list;
12506       gboolean column_in_tree = FALSE;
12507
12508       for (list = tree_view->priv->columns; list; list = list->next)
12509         if (list->data == focus_column)
12510           {
12511             column_in_tree = TRUE;
12512             break;
12513           }
12514       g_return_if_fail (column_in_tree);
12515       tree_view->priv->focus_column = focus_column;
12516       if (focus_cell)
12517         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12518       if (start_editing)
12519         gtk_tree_view_start_editing (tree_view, path);
12520     }
12521 }
12522
12523 /**
12524  * gtk_tree_view_get_bin_window:
12525  * @tree_view: A #GtkTreeView
12526  *
12527  * Returns the window that @tree_view renders to.  This is used primarily to
12528  * compare to <literal>event->window</literal> to confirm that the event on
12529  * @tree_view is on the right window.
12530  *
12531  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12532  **/
12533 GdkWindow *
12534 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12535 {
12536   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12537
12538   return tree_view->priv->bin_window;
12539 }
12540
12541 /**
12542  * gtk_tree_view_get_path_at_pos:
12543  * @tree_view: A #GtkTreeView.
12544  * @x: The x position to be identified (relative to bin_window).
12545  * @y: The y position to be identified (relative to bin_window).
12546  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12547  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12548  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12549  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12550  *
12551  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12552  * (please see gtk_tree_view_get_bin_window()).
12553  * That is, @x and @y are relative to an events coordinates. @x and @y must
12554  * come from an event on the @tree_view only where <literal>event->window ==
12555  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12556  * things like popup menus. If @path is non-%NULL, then it will be filled
12557  * with the #GtkTreePath at that point.  This path should be freed with
12558  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12559  * with the column at that point.  @cell_x and @cell_y return the coordinates
12560  * relative to the cell background (i.e. the @background_area passed to
12561  * gtk_cell_renderer_render()).  This function is only meaningful if
12562  * @tree_view is realized.
12563  *
12564  * For converting widget coordinates (eg. the ones you get from
12565  * GtkWidget::query-tooltip), please see
12566  * gtk_tree_view_convert_widget_to_bin_window_coords().
12567  *
12568  * Return value: %TRUE if a row exists at that coordinate.
12569  **/
12570 gboolean
12571 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12572                                gint                x,
12573                                gint                y,
12574                                GtkTreePath       **path,
12575                                GtkTreeViewColumn **column,
12576                                gint               *cell_x,
12577                                gint               *cell_y)
12578 {
12579   GtkRBTree *tree;
12580   GtkRBNode *node;
12581   gint y_offset;
12582
12583   g_return_val_if_fail (tree_view != NULL, FALSE);
12584   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
12585
12586   if (path)
12587     *path = NULL;
12588   if (column)
12589     *column = NULL;
12590
12591   if (tree_view->priv->tree == NULL)
12592     return FALSE;
12593
12594   if (x > tree_view->priv->hadjustment->upper)
12595     return FALSE;
12596
12597   if (x < 0 || y < 0)
12598     return FALSE;
12599
12600   if (column || cell_x)
12601     {
12602       GtkTreeViewColumn *tmp_column;
12603       GtkTreeViewColumn *last_column = NULL;
12604       GList *list;
12605       gint remaining_x = x;
12606       gboolean found = FALSE;
12607       gboolean rtl;
12608
12609       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12610       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12611            list;
12612            list = (rtl ? list->prev : list->next))
12613         {
12614           tmp_column = list->data;
12615
12616           if (tmp_column->visible == FALSE)
12617             continue;
12618
12619           last_column = tmp_column;
12620           if (remaining_x <= tmp_column->width)
12621             {
12622               found = TRUE;
12623
12624               if (column)
12625                 *column = tmp_column;
12626
12627               if (cell_x)
12628                 *cell_x = remaining_x;
12629
12630               break;
12631             }
12632           remaining_x -= tmp_column->width;
12633         }
12634
12635       /* If found is FALSE and there is a last_column, then it the remainder
12636        * space is in that area
12637        */
12638       if (!found)
12639         {
12640           if (last_column)
12641             {
12642               if (column)
12643                 *column = last_column;
12644
12645               if (cell_x)
12646                 *cell_x = last_column->width + remaining_x;
12647             }
12648           else
12649             {
12650               return FALSE;
12651             }
12652         }
12653     }
12654
12655   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12656                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12657                                       &tree, &node);
12658
12659   if (tree == NULL)
12660     return FALSE;
12661
12662   if (cell_y)
12663     *cell_y = y_offset;
12664
12665   if (path)
12666     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12667
12668   return TRUE;
12669 }
12670
12671
12672 /**
12673  * gtk_tree_view_get_cell_area:
12674  * @tree_view: a #GtkTreeView
12675  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12676  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12677  * @rect: rectangle to fill with cell rect
12678  *
12679  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12680  * row specified by @path and the column specified by @column.  If @path is
12681  * %NULL, or points to a path not currently displayed, the @y and @height fields
12682  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12683  * fields will be filled with 0.  The sum of all cell rects does not cover the
12684  * entire tree; there are extra pixels in between rows, for example. The
12685  * returned rectangle is equivalent to the @cell_area passed to
12686  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12687  * realized.
12688  **/
12689 void
12690 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12691                              GtkTreePath        *path,
12692                              GtkTreeViewColumn  *column,
12693                              GdkRectangle       *rect)
12694 {
12695   GtkRBTree *tree = NULL;
12696   GtkRBNode *node = NULL;
12697   gint vertical_separator;
12698   gint horizontal_separator;
12699
12700   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12701   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12702   g_return_if_fail (rect != NULL);
12703   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12704   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12705
12706   gtk_widget_style_get (GTK_WIDGET (tree_view),
12707                         "vertical-separator", &vertical_separator,
12708                         "horizontal-separator", &horizontal_separator,
12709                         NULL);
12710
12711   rect->x = 0;
12712   rect->y = 0;
12713   rect->width = 0;
12714   rect->height = 0;
12715
12716   if (column)
12717     {
12718       rect->x = column->button->allocation.x + horizontal_separator/2;
12719       rect->width = column->button->allocation.width - horizontal_separator;
12720     }
12721
12722   if (path)
12723     {
12724       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12725
12726       /* Get vertical coords */
12727       if ((!ret && tree == NULL) || ret)
12728         return;
12729
12730       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12731       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12732
12733       if (column &&
12734           gtk_tree_view_is_expander_column (tree_view, column))
12735         {
12736           gint depth = gtk_tree_path_get_depth (path);
12737           gboolean rtl;
12738
12739           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12740
12741           if (!rtl)
12742             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12743           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12744
12745           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12746             {
12747               if (!rtl)
12748                 rect->x += depth * tree_view->priv->expander_size;
12749               rect->width -= depth * tree_view->priv->expander_size;
12750             }
12751
12752           rect->width = MAX (rect->width, 0);
12753         }
12754     }
12755 }
12756
12757 /**
12758  * gtk_tree_view_get_background_area:
12759  * @tree_view: a #GtkTreeView
12760  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12761  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12762  * @rect: rectangle to fill with cell background rect
12763  *
12764  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12765  * row specified by @path and the column specified by @column.  If @path is
12766  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12767  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12768  * fields will be filled with 0.  The returned rectangle is equivalent to the
12769  * @background_area passed to gtk_cell_renderer_render().  These background
12770  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12771  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12772  * itself, excluding surrounding borders and the tree expander area.
12773  *
12774  **/
12775 void
12776 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12777                                    GtkTreePath        *path,
12778                                    GtkTreeViewColumn  *column,
12779                                    GdkRectangle       *rect)
12780 {
12781   GtkRBTree *tree = NULL;
12782   GtkRBNode *node = NULL;
12783
12784   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12785   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12786   g_return_if_fail (rect != NULL);
12787
12788   rect->x = 0;
12789   rect->y = 0;
12790   rect->width = 0;
12791   rect->height = 0;
12792
12793   if (path)
12794     {
12795       /* Get vertical coords */
12796
12797       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12798           tree == NULL)
12799         return;
12800
12801       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12802
12803       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12804     }
12805
12806   if (column)
12807     {
12808       gint x2 = 0;
12809
12810       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12811       rect->width = x2 - rect->x;
12812     }
12813 }
12814
12815 /**
12816  * gtk_tree_view_get_visible_rect:
12817  * @tree_view: a #GtkTreeView
12818  * @visible_rect: rectangle to fill
12819  *
12820  * Fills @visible_rect with the currently-visible region of the
12821  * buffer, in tree coordinates. Convert to bin_window coordinates with
12822  * gtk_tree_view_convert_tree_to_bin_window_coords().
12823  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12824  * scrollable area of the tree.
12825  **/
12826 void
12827 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12828                                 GdkRectangle *visible_rect)
12829 {
12830   GtkWidget *widget;
12831
12832   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12833
12834   widget = GTK_WIDGET (tree_view);
12835
12836   if (visible_rect)
12837     {
12838       visible_rect->x = tree_view->priv->hadjustment->value;
12839       visible_rect->y = tree_view->priv->vadjustment->value;
12840       visible_rect->width = widget->allocation.width;
12841       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
12842     }
12843 }
12844
12845 /**
12846  * gtk_tree_view_widget_to_tree_coords:
12847  * @tree_view: a #GtkTreeView
12848  * @wx: X coordinate relative to bin_window
12849  * @wy: Y coordinate relative to bin_window
12850  * @tx: return location for tree X coordinate
12851  * @ty: return location for tree Y coordinate
12852  *
12853  * Converts bin_window coordinates to coordinates for the
12854  * tree (the full scrollable area of the tree).
12855  *
12856  * Deprecated: 2.12: Due to historial reasons the name of this function is
12857  * incorrect.  For converting coordinates relative to the widget to
12858  * bin_window coordinates, please see
12859  * gtk_tree_view_convert_widget_to_bin_window_coords().
12860  *
12861  **/
12862 void
12863 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
12864                                       gint         wx,
12865                                       gint         wy,
12866                                       gint        *tx,
12867                                       gint        *ty)
12868 {
12869   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12870
12871   if (tx)
12872     *tx = wx + tree_view->priv->hadjustment->value;
12873   if (ty)
12874     *ty = wy + tree_view->priv->dy;
12875 }
12876
12877 /**
12878  * gtk_tree_view_tree_to_widget_coords:
12879  * @tree_view: a #GtkTreeView
12880  * @tx: tree X coordinate
12881  * @ty: tree Y coordinate
12882  * @wx: return location for X coordinate relative to bin_window
12883  * @wy: return location for Y coordinate relative to bin_window
12884  *
12885  * Converts tree coordinates (coordinates in full scrollable area of the tree)
12886  * to bin_window coordinates.
12887  *
12888  * Deprecated: 2.12: Due to historial reasons the name of this function is
12889  * incorrect.  For converting bin_window coordinates to coordinates relative
12890  * to bin_window, please see
12891  * gtk_tree_view_convert_bin_window_to_widget_coords().
12892  *
12893  **/
12894 void
12895 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
12896                                      gint         tx,
12897                                      gint         ty,
12898                                      gint        *wx,
12899                                      gint        *wy)
12900 {
12901   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12902
12903   if (wx)
12904     *wx = tx - tree_view->priv->hadjustment->value;
12905   if (wy)
12906     *wy = ty - tree_view->priv->dy;
12907 }
12908
12909
12910 /**
12911  * gtk_tree_view_convert_widget_to_tree_coords:
12912  * @tree_view: a #GtkTreeView
12913  * @wx: X coordinate relative to the widget
12914  * @wy: Y coordinate relative to the widget
12915  * @tx: return location for tree X coordinate
12916  * @ty: return location for tree Y coordinate
12917  *
12918  * Converts widget coordinates to coordinates for the
12919  * tree (the full scrollable area of the tree).
12920  *
12921  * Since: 2.12
12922  **/
12923 void
12924 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
12925                                              gint         wx,
12926                                              gint         wy,
12927                                              gint        *tx,
12928                                              gint        *ty)
12929 {
12930   gint x, y;
12931
12932   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12933
12934   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
12935                                                      wx, wy,
12936                                                      &x, &y);
12937   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
12938                                                    x, y,
12939                                                    tx, ty);
12940 }
12941
12942 /**
12943  * gtk_tree_view_convert_tree_to_widget_coords:
12944  * @tree_view: a #GtkTreeView
12945  * @tx: X coordinate relative to the tree
12946  * @ty: Y coordinate relative to the tree
12947  * @wx: return location for widget X coordinate
12948  * @wy: return location for widget Y coordinate
12949  *
12950  * Converts tree coordinates (coordinates in full scrollable area of the tree)
12951  * to widget coordinates.
12952  *
12953  * Since: 2.12
12954  **/
12955 void
12956 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
12957                                              gint         tx,
12958                                              gint         ty,
12959                                              gint        *wx,
12960                                              gint        *wy)
12961 {
12962   gint x, y;
12963
12964   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12965
12966   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
12967                                                    tx, ty,
12968                                                    &x, &y);
12969   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
12970                                                      x, y,
12971                                                      wx, wy);
12972 }
12973
12974 /**
12975  * gtk_tree_view_convert_widget_to_bin_window_coords:
12976  * @tree_view: a #GtkTreeView
12977  * @wx: X coordinate relative to the widget
12978  * @wy: Y coordinate relative to the widget
12979  * @bx: return location for bin_window X coordinate
12980  * @by: return location for bin_window Y coordinate
12981  *
12982  * Converts widget coordinates to coordinates for the bin_window
12983  * (see gtk_tree_view_get_bin_window()).
12984  *
12985  * Since: 2.12
12986  **/
12987 void
12988 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
12989                                                    gint         wx,
12990                                                    gint         wy,
12991                                                    gint        *bx,
12992                                                    gint        *by)
12993 {
12994   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12995
12996   if (bx)
12997     *bx = wx + tree_view->priv->hadjustment->value;
12998   if (by)
12999     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13000 }
13001
13002 /**
13003  * gtk_tree_view_convert_bin_window_to_widget_coords:
13004  * @tree_view: a #GtkTreeView
13005  * @bx: bin_window X coordinate
13006  * @by: bin_window Y coordinate
13007  * @wx: return location for widget X coordinate
13008  * @wy: return location for widget Y coordinate
13009  *
13010  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13011  * to widget relative coordinates.
13012  *
13013  * Since: 2.12
13014  **/
13015 void
13016 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13017                                                    gint         bx,
13018                                                    gint         by,
13019                                                    gint        *wx,
13020                                                    gint        *wy)
13021 {
13022   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13023
13024   if (wx)
13025     *wx = bx - tree_view->priv->hadjustment->value;
13026   if (wy)
13027     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13028 }
13029
13030 /**
13031  * gtk_tree_view_convert_tree_to_bin_window_coords:
13032  * @tree_view: a #GtkTreeView
13033  * @tx: tree X coordinate
13034  * @ty: tree Y coordinate
13035  * @bx: return location for X coordinate relative to bin_window
13036  * @by: return location for Y coordinate relative to bin_window
13037  *
13038  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13039  * to bin_window coordinates.
13040  *
13041  * Since: 2.12
13042  **/
13043 void
13044 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13045                                                  gint         tx,
13046                                                  gint         ty,
13047                                                  gint        *bx,
13048                                                  gint        *by)
13049 {
13050   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13051
13052   if (bx)
13053     *bx = tx;
13054   if (by)
13055     *by = ty - tree_view->priv->dy;
13056 }
13057
13058 /**
13059  * gtk_tree_view_convert_bin_window_to_tree_coords:
13060  * @tree_view: a #GtkTreeView
13061  * @bx: X coordinate relative to bin_window
13062  * @by: Y coordinate relative to bin_window
13063  * @tx: return location for tree X coordinate
13064  * @ty: return location for tree Y coordinate
13065  *
13066  * Converts bin_window coordinates to coordinates for the
13067  * tree (the full scrollable area of the tree).
13068  *
13069  * Since: 2.12
13070  **/
13071 void
13072 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13073                                                  gint         bx,
13074                                                  gint         by,
13075                                                  gint        *tx,
13076                                                  gint        *ty)
13077 {
13078   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13079
13080   if (tx)
13081     *tx = bx;
13082   if (ty)
13083     *ty = by + tree_view->priv->dy;
13084 }
13085
13086
13087
13088 /**
13089  * gtk_tree_view_get_visible_range:
13090  * @tree_view: A #GtkTreeView
13091  * @start_path: Return location for start of region, or %NULL.
13092  * @end_path: Return location for end of region, or %NULL.
13093  *
13094  * Sets @start_path and @end_path to be the first and last visible path.
13095  * Note that there may be invisible paths in between.
13096  *
13097  * The paths should be freed with gtk_tree_path_free() after use.
13098  *
13099  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13100  *
13101  * Since: 2.8
13102  **/
13103 gboolean
13104 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13105                                  GtkTreePath **start_path,
13106                                  GtkTreePath **end_path)
13107 {
13108   GtkRBTree *tree;
13109   GtkRBNode *node;
13110
13111   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13112
13113   if (!tree_view->priv->tree)
13114     return FALSE;
13115
13116   if (start_path)
13117     {
13118       _gtk_rbtree_find_offset (tree_view->priv->tree,
13119                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13120                                &tree, &node);
13121       *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13122     }
13123
13124   if (end_path)
13125     {
13126       gint y;
13127
13128       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13129         y = tree_view->priv->height - 1;
13130       else
13131         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13132
13133       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13134       *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13135     }
13136
13137   return TRUE;
13138 }
13139
13140 static void
13141 unset_reorderable (GtkTreeView *tree_view)
13142 {
13143   if (tree_view->priv->reorderable)
13144     {
13145       tree_view->priv->reorderable = FALSE;
13146       g_object_notify (G_OBJECT (tree_view), "reorderable");
13147     }
13148 }
13149
13150 /**
13151  * gtk_tree_view_enable_model_drag_source:
13152  * @tree_view: a #GtkTreeView
13153  * @start_button_mask: Mask of allowed buttons to start drag
13154  * @targets: the table of targets that the drag will support
13155  * @n_targets: the number of items in @targets
13156  * @actions: the bitmask of possible actions for a drag from this
13157  *    widget
13158  *
13159  * Turns @tree_view into a drag source for automatic DND.
13160  **/
13161 void
13162 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13163                                         GdkModifierType           start_button_mask,
13164                                         const GtkTargetEntry     *targets,
13165                                         gint                      n_targets,
13166                                         GdkDragAction             actions)
13167 {
13168   TreeViewDragInfo *di;
13169
13170   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13171
13172   gtk_drag_source_set (GTK_WIDGET (tree_view),
13173                        0,
13174                        targets,
13175                        n_targets,
13176                        actions);
13177
13178   di = ensure_info (tree_view);
13179   clear_source_info (di);
13180
13181   di->start_button_mask = start_button_mask;
13182   di->source_target_list = gtk_target_list_new (targets, n_targets);
13183   di->source_actions = actions;
13184
13185   di->source_set = TRUE;
13186
13187   unset_reorderable (tree_view);
13188 }
13189
13190 /**
13191  * gtk_tree_view_enable_model_drag_dest:
13192  * @tree_view: a #GtkTreeView
13193  * @targets: the table of targets that the drag will support
13194  * @n_targets: the number of items in @targets
13195  * @actions: the bitmask of possible actions for a drag from this
13196  *    widget
13197  *
13198  * Turns @tree_view into a drop destination for automatic DND.
13199  **/
13200 void
13201 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13202                                       const GtkTargetEntry     *targets,
13203                                       gint                      n_targets,
13204                                       GdkDragAction             actions)
13205 {
13206   TreeViewDragInfo *di;
13207
13208   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13209
13210   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13211                      0,
13212                      targets,
13213                      n_targets,
13214                      actions);
13215
13216   di = ensure_info (tree_view);
13217   clear_dest_info (di);
13218
13219   if (targets)
13220     di->dest_target_list = gtk_target_list_new (targets, n_targets);
13221
13222   di->dest_set = TRUE;
13223
13224   unset_reorderable (tree_view);
13225 }
13226
13227 /**
13228  * gtk_tree_view_unset_rows_drag_source:
13229  * @tree_view: a #GtkTreeView
13230  *
13231  * Undoes the effect of gtk_tree_view_enable_model_drag_source().
13232  **/
13233 void
13234 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13235 {
13236   TreeViewDragInfo *di;
13237
13238   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13239
13240   di = get_info (tree_view);
13241
13242   if (di)
13243     {
13244       if (di->source_set)
13245         {
13246           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13247           clear_source_info (di);
13248           di->source_set = FALSE;
13249         }
13250
13251       if (!di->dest_set && !di->source_set)
13252         remove_info (tree_view);
13253     }
13254
13255   unset_reorderable (tree_view);
13256 }
13257
13258 /**
13259  * gtk_tree_view_unset_rows_drag_dest:
13260  * @tree_view: a #GtkTreeView
13261  *
13262  * Undoes the effect of gtk_tree_view_enable_model_drag_dest().
13263  **/
13264 void
13265 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13266 {
13267   TreeViewDragInfo *di;
13268
13269   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13270
13271   di = get_info (tree_view);
13272
13273   if (di)
13274     {
13275       if (di->dest_set)
13276         {
13277           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13278           clear_dest_info (di);
13279           di->dest_set = FALSE;
13280         }
13281
13282       if (!di->dest_set && !di->source_set)
13283         remove_info (tree_view);
13284     }
13285
13286   unset_reorderable (tree_view);
13287 }
13288
13289 /**
13290  * gtk_tree_view_set_drag_dest_row:
13291  * @tree_view: a #GtkTreeView
13292  * @path: The path of the row to highlight, or %NULL.
13293  * @pos: Specifies whether to drop before, after or into the row
13294  *
13295  * Sets the row that is highlighted for feedback.
13296  **/
13297 void
13298 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13299                                  GtkTreePath            *path,
13300                                  GtkTreeViewDropPosition pos)
13301 {
13302   GtkTreePath *current_dest;
13303
13304   /* Note; this function is exported to allow a custom DND
13305    * implementation, so it can't touch TreeViewDragInfo
13306    */
13307
13308   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13309
13310   current_dest = NULL;
13311
13312   if (tree_view->priv->drag_dest_row)
13313     {
13314       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13315       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13316     }
13317
13318   /* special case a drop on an empty model */
13319   tree_view->priv->empty_view_drop = 0;
13320
13321   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13322       && gtk_tree_path_get_depth (path) == 1
13323       && gtk_tree_path_get_indices (path)[0] == 0)
13324     {
13325       gint n_children;
13326
13327       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13328                                                    NULL);
13329
13330       if (!n_children)
13331         tree_view->priv->empty_view_drop = 1;
13332     }
13333
13334   tree_view->priv->drag_dest_pos = pos;
13335
13336   if (path)
13337     {
13338       tree_view->priv->drag_dest_row =
13339         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13340       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13341     }
13342   else
13343     tree_view->priv->drag_dest_row = NULL;
13344
13345   if (current_dest)
13346     {
13347       GtkRBTree *tree, *new_tree;
13348       GtkRBNode *node, *new_node;
13349
13350       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13351       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13352
13353       if (tree && node)
13354         {
13355           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13356           if (new_tree && new_node)
13357             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13358
13359           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13360           if (new_tree && new_node)
13361             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13362         }
13363       gtk_tree_path_free (current_dest);
13364     }
13365 }
13366
13367 /**
13368  * gtk_tree_view_get_drag_dest_row:
13369  * @tree_view: a #GtkTreeView
13370  * @path: Return location for the path of the highlighted row, or %NULL.
13371  * @pos: Return location for the drop position, or %NULL
13372  *
13373  * Gets information about the row that is highlighted for feedback.
13374  **/
13375 void
13376 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13377                                  GtkTreePath             **path,
13378                                  GtkTreeViewDropPosition  *pos)
13379 {
13380   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13381
13382   if (path)
13383     {
13384       if (tree_view->priv->drag_dest_row)
13385         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13386       else
13387         {
13388           if (tree_view->priv->empty_view_drop)
13389             *path = gtk_tree_path_new_from_indices (0, -1);
13390           else
13391             *path = NULL;
13392         }
13393     }
13394
13395   if (pos)
13396     *pos = tree_view->priv->drag_dest_pos;
13397 }
13398
13399 /**
13400  * gtk_tree_view_get_dest_row_at_pos:
13401  * @tree_view: a #GtkTreeView
13402  * @drag_x: the position to determine the destination row for
13403  * @drag_y: the position to determine the destination row for
13404  * @path: Return location for the path of the highlighted row, or %NULL.
13405  * @pos: Return location for the drop position, or %NULL
13406  *
13407  * Determines the destination row for a given position.  @drag_x and
13408  * @drag_y are expected to be in widget coordinates.
13409  *
13410  * Return value: whether there is a row at the given position.
13411  **/
13412 gboolean
13413 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13414                                    gint                     drag_x,
13415                                    gint                     drag_y,
13416                                    GtkTreePath            **path,
13417                                    GtkTreeViewDropPosition *pos)
13418 {
13419   gint cell_y;
13420   gint bin_x, bin_y;
13421   gdouble offset_into_row;
13422   gdouble third;
13423   GdkRectangle cell;
13424   GtkTreeViewColumn *column = NULL;
13425   GtkTreePath *tmp_path = NULL;
13426
13427   /* Note; this function is exported to allow a custom DND
13428    * implementation, so it can't touch TreeViewDragInfo
13429    */
13430
13431   g_return_val_if_fail (tree_view != NULL, FALSE);
13432   g_return_val_if_fail (drag_x >= 0, FALSE);
13433   g_return_val_if_fail (drag_y >= 0, FALSE);
13434   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
13435
13436
13437   if (path)
13438     *path = NULL;
13439
13440   if (tree_view->priv->tree == NULL)
13441     return FALSE;
13442
13443   /* If in the top third of a row, we drop before that row; if
13444    * in the bottom third, drop after that row; if in the middle,
13445    * and the row has children, drop into the row.
13446    */
13447   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13448                                                      &bin_x, &bin_y);
13449
13450   if (!gtk_tree_view_get_path_at_pos (tree_view,
13451                                       bin_x,
13452                                       bin_y,
13453                                       &tmp_path,
13454                                       &column,
13455                                       NULL,
13456                                       &cell_y))
13457     return FALSE;
13458
13459   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13460                                      &cell);
13461
13462   offset_into_row = cell_y;
13463
13464   if (path)
13465     *path = tmp_path;
13466   else
13467     gtk_tree_path_free (tmp_path);
13468
13469   tmp_path = NULL;
13470
13471   third = cell.height / 3.0;
13472
13473   if (pos)
13474     {
13475       if (offset_into_row < third)
13476         {
13477           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13478         }
13479       else if (offset_into_row < (cell.height / 2.0))
13480         {
13481           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13482         }
13483       else if (offset_into_row < third * 2.0)
13484         {
13485           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13486         }
13487       else
13488         {
13489           *pos = GTK_TREE_VIEW_DROP_AFTER;
13490         }
13491     }
13492
13493   return TRUE;
13494 }
13495
13496
13497
13498 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13499 /**
13500  * gtk_tree_view_create_row_drag_icon:
13501  * @tree_view: a #GtkTreeView
13502  * @path: a #GtkTreePath in @tree_view
13503  *
13504  * Creates a #GdkPixmap representation of the row at @path.
13505  * This image is used for a drag icon.
13506  *
13507  * Return value: a newly-allocated pixmap of the drag icon.
13508  **/
13509 GdkPixmap *
13510 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13511                                     GtkTreePath  *path)
13512 {
13513   GtkTreeIter   iter;
13514   GtkRBTree    *tree;
13515   GtkRBNode    *node;
13516   gint cell_offset;
13517   GList *list;
13518   GdkRectangle background_area;
13519   GdkRectangle expose_area;
13520   GtkWidget *widget;
13521   gint depth;
13522   /* start drawing inside the black outline */
13523   gint x = 1, y = 1;
13524   GdkDrawable *drawable;
13525   gint bin_window_width;
13526   gboolean is_separator = FALSE;
13527   gboolean rtl;
13528
13529   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13530   g_return_val_if_fail (path != NULL, NULL);
13531
13532   widget = GTK_WIDGET (tree_view);
13533
13534   if (!GTK_WIDGET_REALIZED (tree_view))
13535     return NULL;
13536
13537   depth = gtk_tree_path_get_depth (path);
13538
13539   _gtk_tree_view_find_node (tree_view,
13540                             path,
13541                             &tree,
13542                             &node);
13543
13544   if (tree == NULL)
13545     return NULL;
13546
13547   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13548                                 &iter,
13549                                 path))
13550     return NULL;
13551
13552   if (tree_view->priv->row_separator_func)
13553     {
13554       is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
13555                                                               &iter,
13556                                                               tree_view->priv->row_separator_data);
13557     }
13558
13559   cell_offset = x;
13560
13561   background_area.y = y;
13562   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13563
13564   gdk_drawable_get_size (tree_view->priv->bin_window,
13565                          &bin_window_width, NULL);
13566
13567   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13568                              bin_window_width + 2,
13569                              background_area.height + 2,
13570                              -1);
13571
13572   expose_area.x = 0;
13573   expose_area.y = 0;
13574   expose_area.width = bin_window_width + 2;
13575   expose_area.height = background_area.height + 2;
13576
13577   gdk_draw_rectangle (drawable,
13578                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13579                       TRUE,
13580                       0, 0,
13581                       bin_window_width + 2,
13582                       background_area.height + 2);
13583
13584   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13585
13586   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13587       list;
13588       list = (rtl ? list->prev : list->next))
13589     {
13590       GtkTreeViewColumn *column = list->data;
13591       GdkRectangle cell_area;
13592       gint vertical_separator;
13593
13594       if (!column->visible)
13595         continue;
13596
13597       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13598                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13599                                                node->children?TRUE:FALSE);
13600
13601       background_area.x = cell_offset;
13602       background_area.width = column->width;
13603
13604       gtk_widget_style_get (widget,
13605                             "vertical-separator", &vertical_separator,
13606                             NULL);
13607
13608       cell_area = background_area;
13609
13610       cell_area.y += vertical_separator / 2;
13611       cell_area.height -= vertical_separator;
13612
13613       if (gtk_tree_view_is_expander_column (tree_view, column))
13614         {
13615           if (!rtl)
13616             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13617           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13618
13619           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13620             {
13621               if (!rtl)
13622                 cell_area.x += depth * tree_view->priv->expander_size;
13623               cell_area.width -= depth * tree_view->priv->expander_size;
13624             }
13625         }
13626
13627       if (gtk_tree_view_column_cell_is_visible (column))
13628         {
13629           if (is_separator)
13630             gtk_paint_hline (widget->style,
13631                              drawable,
13632                              GTK_STATE_NORMAL,
13633                              &cell_area,
13634                              widget,
13635                              NULL,
13636                              cell_area.x,
13637                              cell_area.x + cell_area.width,
13638                              cell_area.y + cell_area.height / 2);
13639           else
13640             _gtk_tree_view_column_cell_render (column,
13641                                                drawable,
13642                                                &background_area,
13643                                                &cell_area,
13644                                                &expose_area,
13645                                                0);
13646         }
13647       cell_offset += column->width;
13648     }
13649
13650   gdk_draw_rectangle (drawable,
13651                       widget->style->black_gc,
13652                       FALSE,
13653                       0, 0,
13654                       bin_window_width + 1,
13655                       background_area.height + 1);
13656
13657   return drawable;
13658 }
13659
13660
13661 /**
13662  * gtk_tree_view_set_destroy_count_func:
13663  * @tree_view: A #GtkTreeView
13664  * @func: Function to be called when a view row is destroyed, or %NULL
13665  * @data: User data to be passed to @func, or %NULL
13666  * @destroy: Destroy notifier for @data, or %NULL
13667  *
13668  * This function should almost never be used.  It is meant for private use by
13669  * ATK for determining the number of visible children that are removed when the
13670  * user collapses a row, or a row is deleted.
13671  **/
13672 void
13673 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13674                                       GtkTreeDestroyCountFunc  func,
13675                                       gpointer                 data,
13676                                       GtkDestroyNotify         destroy)
13677 {
13678   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13679
13680   if (tree_view->priv->destroy_count_destroy)
13681     (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
13682
13683   tree_view->priv->destroy_count_func = func;
13684   tree_view->priv->destroy_count_data = data;
13685   tree_view->priv->destroy_count_destroy = destroy;
13686 }
13687
13688
13689 /*
13690  * Interactive search
13691  */
13692
13693 /**
13694  * gtk_tree_view_set_enable_search:
13695  * @tree_view: A #GtkTreeView
13696  * @enable_search: %TRUE, if the user can search interactively
13697  *
13698  * If @enable_search is set, then the user can type in text to search through
13699  * the tree interactively (this is sometimes called "typeahead find").
13700  *
13701  * Note that even if this is %FALSE, the user can still initiate a search
13702  * using the "start-interactive-search" key binding.
13703  */
13704 void
13705 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13706                                  gboolean     enable_search)
13707 {
13708   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13709
13710   enable_search = !!enable_search;
13711
13712   if (tree_view->priv->enable_search != enable_search)
13713     {
13714        tree_view->priv->enable_search = enable_search;
13715        g_object_notify (G_OBJECT (tree_view), "enable-search");
13716     }
13717 }
13718
13719 /**
13720  * gtk_tree_view_get_enable_search:
13721  * @tree_view: A #GtkTreeView
13722  *
13723  * Returns whether or not the tree allows to start interactive searching
13724  * by typing in text.
13725  *
13726  * Return value: whether or not to let the user search interactively
13727  */
13728 gboolean
13729 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13730 {
13731   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13732
13733   return tree_view->priv->enable_search;
13734 }
13735
13736
13737 /**
13738  * gtk_tree_view_get_search_column:
13739  * @tree_view: A #GtkTreeView
13740  *
13741  * Gets the column searched on by the interactive search code.
13742  *
13743  * Return value: the column the interactive search code searches in.
13744  */
13745 gint
13746 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13747 {
13748   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13749
13750   return (tree_view->priv->search_column);
13751 }
13752
13753 /**
13754  * gtk_tree_view_set_search_column:
13755  * @tree_view: A #GtkTreeView
13756  * @column: the column of the model to search in, or -1 to disable searching
13757  *
13758  * Sets @column as the column where the interactive search code should
13759  * search in.
13760  *
13761  * If the sort column is set, users can use the "start-interactive-search"
13762  * key binding to bring up search popup. The enable-search property controls
13763  * whether simply typing text will also start an interactive search.
13764  *
13765  * Note that @column refers to a column of the model.
13766  */
13767 void
13768 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13769                                  gint         column)
13770 {
13771   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13772   g_return_if_fail (column >= -1);
13773
13774   if (tree_view->priv->search_column == column)
13775     return;
13776
13777   tree_view->priv->search_column = column;
13778   g_object_notify (G_OBJECT (tree_view), "search-column");
13779 }
13780
13781 /**
13782  * gtk_tree_view_get_search_equal_func:
13783  * @tree_view: A #GtkTreeView
13784  *
13785  * Returns the compare function currently in use.
13786  *
13787  * Return value: the currently used compare function for the search code.
13788  */
13789
13790 GtkTreeViewSearchEqualFunc
13791 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13792 {
13793   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13794
13795   return tree_view->priv->search_equal_func;
13796 }
13797
13798 /**
13799  * gtk_tree_view_set_search_equal_func:
13800  * @tree_view: A #GtkTreeView
13801  * @search_equal_func: the compare function to use during the search
13802  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13803  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13804  *
13805  * Sets the compare function for the interactive search capabilities; note
13806  * that somewhat like strcmp() returning 0 for equality
13807  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13808  **/
13809 void
13810 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13811                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13812                                      gpointer                    search_user_data,
13813                                      GtkDestroyNotify            search_destroy)
13814 {
13815   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13816   g_return_if_fail (search_equal_func != NULL);
13817
13818   if (tree_view->priv->search_destroy)
13819     (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
13820
13821   tree_view->priv->search_equal_func = search_equal_func;
13822   tree_view->priv->search_user_data = search_user_data;
13823   tree_view->priv->search_destroy = search_destroy;
13824   if (tree_view->priv->search_equal_func == NULL)
13825     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13826 }
13827
13828 /**
13829  * gtk_tree_view_get_search_entry:
13830  * @tree_view: A #GtkTreeView
13831  *
13832  * Returns the GtkEntry which is currently in use as interactive search
13833  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13834  * will be returned.
13835  *
13836  * Return value: the entry currently in use as search entry.
13837  *
13838  * Since: 2.10
13839  */
13840 GtkEntry *
13841 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
13842 {
13843   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13844
13845   if (tree_view->priv->search_custom_entry_set)
13846     return GTK_ENTRY (tree_view->priv->search_entry);
13847
13848   return NULL;
13849 }
13850
13851 /**
13852  * gtk_tree_view_set_search_entry:
13853  * @tree_view: A #GtkTreeView
13854  * @entry: the entry the interactive search code of @tree_view should use or %NULL
13855  *
13856  * Sets the entry which the interactive search code will use for this
13857  * @tree_view.  This is useful when you want to provide a search entry
13858  * in our interface at all time at a fixed position.  Passing %NULL for
13859  * @entry will make the interactive search code use the built-in popup
13860  * entry again.
13861  *
13862  * Since: 2.10
13863  */
13864 void
13865 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
13866                                 GtkEntry    *entry)
13867 {
13868   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13869   if (entry != NULL)
13870     g_return_if_fail (GTK_IS_ENTRY (entry));
13871
13872   if (tree_view->priv->search_custom_entry_set)
13873     {
13874       if (tree_view->priv->search_entry_changed_id)
13875         {
13876           g_signal_handler_disconnect (tree_view->priv->search_entry,
13877                                        tree_view->priv->search_entry_changed_id);
13878           tree_view->priv->search_entry_changed_id = 0;
13879         }
13880       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
13881                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
13882                                             tree_view);
13883
13884       g_object_unref (tree_view->priv->search_entry);
13885     }
13886   else if (tree_view->priv->search_window)
13887     {
13888       gtk_widget_destroy (tree_view->priv->search_window);
13889
13890       tree_view->priv->search_window = NULL;
13891     }
13892
13893   if (entry)
13894     {
13895       tree_view->priv->search_entry = g_object_ref (entry);
13896       tree_view->priv->search_custom_entry_set = TRUE;
13897
13898       if (tree_view->priv->search_entry_changed_id == 0)
13899         {
13900           tree_view->priv->search_entry_changed_id =
13901             g_signal_connect (tree_view->priv->search_entry, "changed",
13902                               G_CALLBACK (gtk_tree_view_search_init),
13903                               tree_view);
13904         }
13905
13906         g_signal_connect (tree_view->priv->search_entry, "key_press_event",
13907                           G_CALLBACK (gtk_tree_view_search_key_press_event),
13908                           tree_view);
13909
13910         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
13911     }
13912   else
13913     {
13914       tree_view->priv->search_entry = NULL;
13915       tree_view->priv->search_custom_entry_set = FALSE;
13916     }
13917 }
13918
13919 /**
13920  * gtk_tree_view_set_search_position_func:
13921  * @tree_view: A #GtkTreeView
13922  * @func: the function to use to position the search dialog, or %NULL
13923  *    to use the default search position function
13924  * @data: user data to pass to @func, or %NULL
13925  * @destroy: Destroy notifier for @data, or %NULL
13926  *
13927  * Sets the function to use when positioning the seach dialog.
13928  *
13929  * Since: 2.10
13930  **/
13931 void
13932 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
13933                                         GtkTreeViewSearchPositionFunc  func,
13934                                         gpointer                       user_data,
13935                                         GDestroyNotify                 destroy)
13936 {
13937   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13938
13939   if (tree_view->priv->search_position_destroy)
13940     (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
13941
13942   tree_view->priv->search_position_func = func;
13943   tree_view->priv->search_position_user_data = user_data;
13944   tree_view->priv->search_position_destroy = destroy;
13945   if (tree_view->priv->search_position_func == NULL)
13946     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
13947 }
13948
13949 /**
13950  * gtk_tree_view_get_search_position_func:
13951  * @tree_view: A #GtkTreeView
13952  *
13953  * Returns the positioning function currently in use.
13954  *
13955  * Return value: the currently used function for positioning the search dialog.
13956  *
13957  * Since: 2.10
13958  */
13959 GtkTreeViewSearchPositionFunc
13960 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
13961 {
13962   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13963
13964   return tree_view->priv->search_position_func;
13965 }
13966
13967
13968 static void
13969 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
13970                                   GtkTreeView *tree_view)
13971 {
13972   if (tree_view->priv->disable_popdown)
13973     return;
13974
13975   if (tree_view->priv->search_entry_changed_id)
13976     {
13977       g_signal_handler_disconnect (tree_view->priv->search_entry,
13978                                    tree_view->priv->search_entry_changed_id);
13979       tree_view->priv->search_entry_changed_id = 0;
13980     }
13981   if (tree_view->priv->typeselect_flush_timeout)
13982     {
13983       g_source_remove (tree_view->priv->typeselect_flush_timeout);
13984       tree_view->priv->typeselect_flush_timeout = 0;
13985     }
13986
13987   if (GTK_WIDGET_VISIBLE (search_dialog))
13988     {
13989       /* send focus-in event */
13990       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
13991       gtk_widget_hide (search_dialog);
13992       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
13993       send_focus_change (GTK_WIDGET (tree_view), TRUE);
13994     }
13995 }
13996
13997 static void
13998 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
13999                                     GtkWidget   *search_dialog,
14000                                     gpointer     user_data)
14001 {
14002   gint x, y;
14003   gint tree_x, tree_y;
14004   gint tree_width, tree_height;
14005   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14006   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14007   GtkRequisition requisition;
14008   gint monitor_num;
14009   GdkRectangle monitor;
14010
14011   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14012   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14013
14014   gtk_widget_realize (search_dialog);
14015
14016   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14017   gdk_drawable_get_size (tree_window,
14018                          &tree_width,
14019                          &tree_height);
14020   gtk_widget_size_request (search_dialog, &requisition);
14021
14022   if (tree_x + tree_width > gdk_screen_get_width (screen))
14023     x = gdk_screen_get_width (screen) - requisition.width;
14024   else if (tree_x + tree_width - requisition.width < 0)
14025     x = 0;
14026   else
14027     x = tree_x + tree_width - requisition.width;
14028
14029   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14030     y = gdk_screen_get_height (screen) - requisition.height;
14031   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14032     y = 0;
14033   else
14034     y = tree_y + tree_height;
14035
14036   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14037 }
14038
14039 static void
14040 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14041                                       GtkMenu  *menu,
14042                                       gpointer  data)
14043 {
14044   GtkTreeView *tree_view = (GtkTreeView *)data;
14045
14046   tree_view->priv->disable_popdown = 1;
14047   g_signal_connect (menu, "hide",
14048                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14049 }
14050
14051 /* Because we're visible but offscreen, we just set a flag in the preedit
14052  * callback.
14053  */
14054 static void
14055 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14056                                       GtkTreeView  *tree_view)
14057 {
14058   tree_view->priv->imcontext_changed = 1;
14059   if (tree_view->priv->typeselect_flush_timeout)
14060     {
14061       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14062       tree_view->priv->typeselect_flush_timeout =
14063         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14064                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14065                        tree_view);
14066     }
14067
14068 }
14069
14070 static void
14071 gtk_tree_view_search_activate (GtkEntry    *entry,
14072                                GtkTreeView *tree_view)
14073 {
14074   GtkTreePath *path;
14075   GtkRBNode *node;
14076   GtkRBTree *tree;
14077
14078   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14079                                     tree_view);
14080
14081   /* If we have a row selected and it's the cursor row, we activate
14082    * the row XXX */
14083   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14084     {
14085       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14086
14087       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14088
14089       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14090         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14091
14092       gtk_tree_path_free (path);
14093     }
14094 }
14095
14096 static gboolean
14097 gtk_tree_view_real_search_enable_popdown (gpointer data)
14098 {
14099   GtkTreeView *tree_view = (GtkTreeView *)data;
14100
14101   tree_view->priv->disable_popdown = 0;
14102
14103   return FALSE;
14104 }
14105
14106 static void
14107 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14108                                      gpointer   data)
14109 {
14110   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14111 }
14112
14113 static gboolean
14114 gtk_tree_view_search_delete_event (GtkWidget *widget,
14115                                    GdkEventAny *event,
14116                                    GtkTreeView *tree_view)
14117 {
14118   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14119
14120   gtk_tree_view_search_dialog_hide (widget, tree_view);
14121
14122   return TRUE;
14123 }
14124
14125 static gboolean
14126 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14127                                          GdkEventButton *event,
14128                                          GtkTreeView *tree_view)
14129 {
14130   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14131
14132   gtk_tree_view_search_dialog_hide (widget, tree_view);
14133
14134   if (event->window == tree_view->priv->bin_window)
14135     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14136
14137   return TRUE;
14138 }
14139
14140 static gboolean
14141 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14142                                    GdkEventScroll *event,
14143                                    GtkTreeView *tree_view)
14144 {
14145   gboolean retval = FALSE;
14146
14147   if (event->direction == GDK_SCROLL_UP)
14148     {
14149       gtk_tree_view_search_move (widget, tree_view, TRUE);
14150       retval = TRUE;
14151     }
14152   else if (event->direction == GDK_SCROLL_DOWN)
14153     {
14154       gtk_tree_view_search_move (widget, tree_view, FALSE);
14155       retval = TRUE;
14156     }
14157
14158   /* renew the flush timeout */
14159   if (retval && tree_view->priv->typeselect_flush_timeout
14160       && !tree_view->priv->search_custom_entry_set)
14161     {
14162       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14163       tree_view->priv->typeselect_flush_timeout =
14164         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14165                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14166                        tree_view);
14167     }
14168
14169   return retval;
14170 }
14171
14172 static gboolean
14173 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14174                                       GdkEventKey *event,
14175                                       GtkTreeView *tree_view)
14176 {
14177   gboolean retval = FALSE;
14178
14179   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14180   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14181
14182   /* close window and cancel the search */
14183   if (!tree_view->priv->search_custom_entry_set
14184       && (event->keyval == GDK_Escape ||
14185           event->keyval == GDK_Tab ||
14186             event->keyval == GDK_KP_Tab ||
14187             event->keyval == GDK_ISO_Left_Tab))
14188     {
14189       gtk_tree_view_search_dialog_hide (widget, tree_view);
14190       return TRUE;
14191     }
14192
14193   /* select previous matching iter */
14194   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14195     {
14196       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14197         gtk_widget_error_bell (widget);
14198
14199       retval = TRUE;
14200     }
14201
14202   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14203       && (event->keyval == GDK_g || event->keyval == GDK_G))
14204     {
14205       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14206         gtk_widget_error_bell (widget);
14207
14208       retval = TRUE;
14209     }
14210
14211   /* select next matching iter */
14212   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14213     {
14214       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14215         gtk_widget_error_bell (widget);
14216
14217       retval = TRUE;
14218     }
14219
14220   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14221       && (event->keyval == GDK_g || event->keyval == GDK_G))
14222     {
14223       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14224         gtk_widget_error_bell (widget);
14225
14226       retval = TRUE;
14227     }
14228
14229   /* renew the flush timeout */
14230   if (retval && tree_view->priv->typeselect_flush_timeout
14231       && !tree_view->priv->search_custom_entry_set)
14232     {
14233       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14234       tree_view->priv->typeselect_flush_timeout =
14235         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14236                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14237                        tree_view);
14238     }
14239
14240   return retval;
14241 }
14242
14243 /*  this function returns FALSE if there is a search string but
14244  *  nothing was found, and TRUE otherwise.
14245  */
14246 static gboolean
14247 gtk_tree_view_search_move (GtkWidget   *window,
14248                            GtkTreeView *tree_view,
14249                            gboolean     up)
14250 {
14251   gboolean ret;
14252   gint len;
14253   gint count = 0;
14254   const gchar *text;
14255   GtkTreeIter iter;
14256   GtkTreeModel *model;
14257   GtkTreeSelection *selection;
14258
14259   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14260
14261   g_return_val_if_fail (text != NULL, FALSE);
14262
14263   len = strlen (text);
14264
14265   if (up && tree_view->priv->selected_iter == 1)
14266     return strlen (text) < 1;
14267
14268   len = strlen (text);
14269
14270   if (len < 1)
14271     return TRUE;
14272
14273   model = gtk_tree_view_get_model (tree_view);
14274   selection = gtk_tree_view_get_selection (tree_view);
14275
14276   /* search */
14277   gtk_tree_selection_unselect_all (selection);
14278   if (!gtk_tree_model_get_iter_first (model, &iter))
14279     return TRUE;
14280
14281   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14282                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14283
14284   if (ret)
14285     {
14286       /* found */
14287       tree_view->priv->selected_iter += up?(-1):(1);
14288       return TRUE;
14289     }
14290   else
14291     {
14292       /* return to old iter */
14293       count = 0;
14294       gtk_tree_model_get_iter_first (model, &iter);
14295       gtk_tree_view_search_iter (model, selection,
14296                                  &iter, text,
14297                                  &count, tree_view->priv->selected_iter);
14298       return FALSE;
14299     }
14300 }
14301
14302 static gboolean
14303 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14304                                  gint          column,
14305                                  const gchar  *key,
14306                                  GtkTreeIter  *iter,
14307                                  gpointer      search_data)
14308 {
14309   gboolean retval = TRUE;
14310   const gchar *str;
14311   gchar *normalized_string;
14312   gchar *normalized_key;
14313   gchar *case_normalized_string = NULL;
14314   gchar *case_normalized_key = NULL;
14315   GValue value = {0,};
14316   GValue transformed = {0,};
14317
14318   gtk_tree_model_get_value (model, iter, column, &value);
14319
14320   g_value_init (&transformed, G_TYPE_STRING);
14321
14322   if (!g_value_transform (&value, &transformed))
14323     {
14324       g_value_unset (&value);
14325       return TRUE;
14326     }
14327
14328   g_value_unset (&value);
14329
14330   str = g_value_get_string (&transformed);
14331   if (!str)
14332     {
14333       g_value_unset (&transformed);
14334       return TRUE;
14335     }
14336
14337   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14338   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14339
14340   if (normalized_string && normalized_key)
14341     {
14342       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14343       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14344
14345       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14346         retval = FALSE;
14347     }
14348
14349   g_value_unset (&transformed);
14350   g_free (normalized_key);
14351   g_free (normalized_string);
14352   g_free (case_normalized_key);
14353   g_free (case_normalized_string);
14354
14355   return retval;
14356 }
14357
14358 static gboolean
14359 gtk_tree_view_search_iter (GtkTreeModel     *model,
14360                            GtkTreeSelection *selection,
14361                            GtkTreeIter      *iter,
14362                            const gchar      *text,
14363                            gint             *count,
14364                            gint              n)
14365 {
14366   GtkRBTree *tree = NULL;
14367   GtkRBNode *node = NULL;
14368   GtkTreePath *path;
14369
14370   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14371
14372   path = gtk_tree_model_get_path (model, iter);
14373   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14374
14375   do
14376     {
14377       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14378         {
14379           (*count)++;
14380           if (*count == n)
14381             {
14382               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14383                                             TRUE, 0.5, 0.0);
14384               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14385               gtk_tree_selection_select_iter (selection, iter);
14386
14387               if (path)
14388                 gtk_tree_path_free (path);
14389
14390               return TRUE;
14391             }
14392         }
14393
14394       if (node->children)
14395         {
14396           gboolean has_child;
14397           GtkTreeIter tmp;
14398
14399           tree = node->children;
14400           node = tree->root;
14401
14402           while (node->left != tree->nil)
14403             node = node->left;
14404
14405           tmp = *iter;
14406           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14407           gtk_tree_path_down (path);
14408
14409           /* sanity check */
14410           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14411         }
14412       else
14413         {
14414           gboolean done = FALSE;
14415
14416           do
14417             {
14418               node = _gtk_rbtree_next (tree, node);
14419
14420               if (node)
14421                 {
14422                   gboolean has_next;
14423
14424                   has_next = gtk_tree_model_iter_next (model, iter);
14425
14426                   done = TRUE;
14427                   gtk_tree_path_next (path);
14428
14429                   /* sanity check */
14430                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14431                 }
14432               else
14433                 {
14434                   gboolean has_parent;
14435                   GtkTreeIter tmp_iter = *iter;
14436
14437                   node = tree->parent_node;
14438                   tree = tree->parent_tree;
14439
14440                   if (!tree)
14441                     {
14442                       if (path)
14443                         gtk_tree_path_free (path);
14444
14445                       /* we've run out of tree, done with this func */
14446                       return FALSE;
14447                     }
14448
14449                   has_parent = gtk_tree_model_iter_parent (model,
14450                                                            iter,
14451                                                            &tmp_iter);
14452                   gtk_tree_path_up (path);
14453
14454                   /* sanity check */
14455                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14456                 }
14457             }
14458           while (!done);
14459         }
14460     }
14461   while (1);
14462
14463   return FALSE;
14464 }
14465
14466 static void
14467 gtk_tree_view_search_init (GtkWidget   *entry,
14468                            GtkTreeView *tree_view)
14469 {
14470   gint ret;
14471   gint len;
14472   gint count = 0;
14473   const gchar *text;
14474   GtkTreeIter iter;
14475   GtkTreeModel *model;
14476   GtkTreeSelection *selection;
14477
14478   g_return_if_fail (GTK_IS_ENTRY (entry));
14479   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14480
14481   text = gtk_entry_get_text (GTK_ENTRY (entry));
14482   len = strlen (text);
14483   model = gtk_tree_view_get_model (tree_view);
14484   selection = gtk_tree_view_get_selection (tree_view);
14485
14486   /* search */
14487   gtk_tree_selection_unselect_all (selection);
14488   if (tree_view->priv->typeselect_flush_timeout
14489       && !tree_view->priv->search_custom_entry_set)
14490     {
14491       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14492       tree_view->priv->typeselect_flush_timeout =
14493         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14494                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14495                        tree_view);
14496     }
14497
14498   if (len < 1)
14499     return;
14500
14501   if (!gtk_tree_model_get_iter_first (model, &iter))
14502     return;
14503
14504   ret = gtk_tree_view_search_iter (model, selection,
14505                                    &iter, text,
14506                                    &count, 1);
14507
14508   if (ret)
14509     tree_view->priv->selected_iter = 1;
14510 }
14511
14512 static void
14513 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14514                              GtkTreeView     *tree_view)
14515 {
14516   if (tree_view->priv->edited_column == NULL)
14517     return;
14518
14519   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14520   tree_view->priv->edited_column = NULL;
14521
14522   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14523     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14524
14525   g_signal_handlers_disconnect_by_func (cell_editable,
14526                                         gtk_tree_view_remove_widget,
14527                                         tree_view);
14528
14529   gtk_container_remove (GTK_CONTAINER (tree_view),
14530                         GTK_WIDGET (cell_editable));
14531
14532   /* FIXME should only redraw a single node */
14533   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14534 }
14535
14536 static gboolean
14537 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14538                              GtkTreePath *cursor_path)
14539 {
14540   GtkTreeIter iter;
14541   GdkRectangle background_area;
14542   GdkRectangle cell_area;
14543   GtkCellEditable *editable_widget = NULL;
14544   gchar *path_string;
14545   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14546   gint retval = FALSE;
14547   GtkRBTree *cursor_tree;
14548   GtkRBNode *cursor_node;
14549
14550   g_assert (tree_view->priv->focus_column);
14551
14552   if (! GTK_WIDGET_REALIZED (tree_view))
14553     return FALSE;
14554
14555   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14556       cursor_node == NULL)
14557     return FALSE;
14558
14559   path_string = gtk_tree_path_to_string (cursor_path);
14560   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14561
14562   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14563
14564   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14565                                            tree_view->priv->model,
14566                                            &iter,
14567                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14568                                            cursor_node->children?TRUE:FALSE);
14569   gtk_tree_view_get_background_area (tree_view,
14570                                      cursor_path,
14571                                      tree_view->priv->focus_column,
14572                                      &background_area);
14573   gtk_tree_view_get_cell_area (tree_view,
14574                                cursor_path,
14575                                tree_view->priv->focus_column,
14576                                &cell_area);
14577
14578   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14579                                         &editable_widget,
14580                                         NULL,
14581                                         path_string,
14582                                         &background_area,
14583                                         &cell_area,
14584                                         flags))
14585     {
14586       retval = TRUE;
14587       if (editable_widget != NULL)
14588         {
14589           gint left, right;
14590           GdkRectangle area;
14591           GtkCellRenderer *cell;
14592
14593           area = cell_area;
14594           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14595
14596           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14597
14598           area.x += left;
14599           area.width -= right + left;
14600
14601           gtk_tree_view_real_start_editing (tree_view,
14602                                             tree_view->priv->focus_column,
14603                                             cursor_path,
14604                                             editable_widget,
14605                                             &area,
14606                                             NULL,
14607                                             flags);
14608         }
14609
14610     }
14611   g_free (path_string);
14612   return retval;
14613 }
14614
14615 static void
14616 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14617                                   GtkTreeViewColumn *column,
14618                                   GtkTreePath       *path,
14619                                   GtkCellEditable   *cell_editable,
14620                                   GdkRectangle      *cell_area,
14621                                   GdkEvent          *event,
14622                                   guint              flags)
14623 {
14624   gint pre_val = tree_view->priv->vadjustment->value;
14625   GtkRequisition requisition;
14626
14627   tree_view->priv->edited_column = column;
14628   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14629
14630   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14631
14632   cell_area->y += pre_val - tree_view->priv->vadjustment->value;
14633
14634   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14635
14636   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14637
14638   if (requisition.height < cell_area->height)
14639     {
14640       gint diff = cell_area->height - requisition.height;
14641       gtk_tree_view_put (tree_view,
14642                          GTK_WIDGET (cell_editable),
14643                          cell_area->x, cell_area->y + diff/2,
14644                          cell_area->width, requisition.height);
14645     }
14646   else
14647     {
14648       gtk_tree_view_put (tree_view,
14649                          GTK_WIDGET (cell_editable),
14650                          cell_area->x, cell_area->y,
14651                          cell_area->width, cell_area->height);
14652     }
14653
14654   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14655                                    (GdkEvent *)event);
14656
14657   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14658   g_signal_connect (cell_editable, "remove_widget",
14659                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14660 }
14661
14662 static void
14663 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14664                             gboolean     cancel_editing)
14665 {
14666   GtkTreeViewColumn *column;
14667   GtkCellRenderer *cell;
14668
14669   if (tree_view->priv->edited_column == NULL)
14670     return;
14671
14672   /*
14673    * This is very evil. We need to do this, because
14674    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14675    * later on. If gtk_tree_view_row_changed notices
14676    * tree_view->priv->edited_column != NULL, it'll call
14677    * gtk_tree_view_stop_editing again. Bad things will happen then.
14678    *
14679    * Please read that again if you intend to modify anything here.
14680    */
14681
14682   column = tree_view->priv->edited_column;
14683   tree_view->priv->edited_column = NULL;
14684
14685   cell = _gtk_tree_view_column_get_edited_cell (column);
14686   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14687
14688   if (!cancel_editing)
14689     gtk_cell_editable_editing_done (column->editable_widget);
14690
14691   tree_view->priv->edited_column = column;
14692
14693   gtk_cell_editable_remove_widget (column->editable_widget);
14694 }
14695
14696
14697 /**
14698  * gtk_tree_view_set_hover_selection:
14699  * @tree_view: a #GtkTreeView
14700  * @hover: %TRUE to enable hover selection mode
14701  *
14702  * Enables of disables the hover selection mode of @tree_view.
14703  * Hover selection makes the selected row follow the pointer.
14704  * Currently, this works only for the selection modes
14705  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14706  *
14707  * Since: 2.6
14708  **/
14709 void
14710 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14711                                    gboolean     hover)
14712 {
14713   hover = hover != FALSE;
14714
14715   if (hover != tree_view->priv->hover_selection)
14716     {
14717       tree_view->priv->hover_selection = hover;
14718
14719       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14720     }
14721 }
14722
14723 /**
14724  * gtk_tree_view_get_hover_selection:
14725  * @tree_view: a #GtkTreeView
14726  *
14727  * Returns whether hover selection mode is turned on for @tree_view.
14728  *
14729  * Return value: %TRUE if @tree_view is in hover selection mode
14730  *
14731  * Since: 2.6
14732  **/
14733 gboolean
14734 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14735 {
14736   return tree_view->priv->hover_selection;
14737 }
14738
14739 /**
14740  * gtk_tree_view_set_hover_expand:
14741  * @tree_view: a #GtkTreeView
14742  * @expand: %TRUE to enable hover selection mode
14743  *
14744  * Enables of disables the hover expansion mode of @tree_view.
14745  * Hover expansion makes rows expand or collaps if the pointer
14746  * moves over them.
14747  *
14748  * Since: 2.6
14749  **/
14750 void
14751 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14752                                 gboolean     expand)
14753 {
14754   expand = expand != FALSE;
14755
14756   if (expand != tree_view->priv->hover_expand)
14757     {
14758       tree_view->priv->hover_expand = expand;
14759
14760       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14761     }
14762 }
14763
14764 /**
14765  * gtk_tree_view_get_hover_expand:
14766  * @tree_view: a #GtkTreeView
14767  *
14768  * Returns whether hover expansion mode is turned on for @tree_view.
14769  *
14770  * Return value: %TRUE if @tree_view is in hover expansion mode
14771  *
14772  * Since: 2.6
14773  **/
14774 gboolean
14775 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14776 {
14777   return tree_view->priv->hover_expand;
14778 }
14779
14780 /**
14781  * gtk_tree_view_set_rubber_banding:
14782  * @tree_view: a #GtkTreeView
14783  * @enable: %TRUE to enable rubber banding
14784  *
14785  * Enables or disables rubber banding in @tree_view.  If the selection mode
14786  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14787  * multiple rows by dragging the mouse.
14788  *
14789  * Since: 2.10
14790  **/
14791 void
14792 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14793                                   gboolean     enable)
14794 {
14795   enable = enable != FALSE;
14796
14797   if (enable != tree_view->priv->rubber_banding_enable)
14798     {
14799       tree_view->priv->rubber_banding_enable = enable;
14800
14801       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14802     }
14803 }
14804
14805 /**
14806  * gtk_tree_view_get_rubber_banding:
14807  * @tree_view: a #GtkTreeView
14808  *
14809  * Returns whether rubber banding is turned on for @tree_view.  If the
14810  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14811  * user to select multiple rows by dragging the mouse.
14812  *
14813  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14814  *
14815  * Since: 2.10
14816  **/
14817 gboolean
14818 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14819 {
14820   return tree_view->priv->rubber_banding_enable;
14821 }
14822
14823 /**
14824  * gtk_tree_view_is_rubber_banding_active:
14825  * @tree_view: a #GtkTreeView
14826  *
14827  * Returns whether a rubber banding operation is currently being done
14828  * in @tree_view.
14829  *
14830  * Return value: %TRUE if a rubber banding operation is currently being
14831  * done in @tree_view.
14832  *
14833  * Since: 2.12
14834  **/
14835 gboolean
14836 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
14837 {
14838   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14839
14840   if (tree_view->priv->rubber_banding_enable
14841       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
14842     return TRUE;
14843
14844   return FALSE;
14845 }
14846
14847 /**
14848  * gtk_tree_view_get_row_separator_func:
14849  * @tree_view: a #GtkTreeView
14850  *
14851  * Returns the current row separator function.
14852  *
14853  * Return value: the current row separator function.
14854  *
14855  * Since: 2.6
14856  **/
14857 GtkTreeViewRowSeparatorFunc
14858 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
14859 {
14860   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14861
14862   return tree_view->priv->row_separator_func;
14863 }
14864
14865 /**
14866  * gtk_tree_view_set_row_separator_func:
14867  * @tree_view: a #GtkTreeView
14868  * @func: a #GtkTreeViewRowSeparatorFunc
14869  * @data: user data to pass to @func, or %NULL
14870  * @destroy: destroy notifier for @data, or %NULL
14871  *
14872  * Sets the row separator function, which is used to determine
14873  * whether a row should be drawn as a separator. If the row separator
14874  * function is %NULL, no separators are drawn. This is the default value.
14875  *
14876  * Since: 2.6
14877  **/
14878 void
14879 gtk_tree_view_set_row_separator_func (GtkTreeView                *tree_view,
14880                                       GtkTreeViewRowSeparatorFunc func,
14881                                       gpointer                    data,
14882                                       GtkDestroyNotify            destroy)
14883 {
14884   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14885
14886   if (tree_view->priv->row_separator_destroy)
14887     (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
14888
14889   tree_view->priv->row_separator_func = func;
14890   tree_view->priv->row_separator_data = data;
14891   tree_view->priv->row_separator_destroy = destroy;
14892 }
14893
14894
14895 static void
14896 gtk_tree_view_grab_notify (GtkWidget *widget,
14897                            gboolean   was_grabbed)
14898 {
14899   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
14900
14901   tree_view->priv->in_grab = !was_grabbed;
14902
14903   if (!was_grabbed)
14904     {
14905       tree_view->priv->pressed_button = -1;
14906
14907       if (tree_view->priv->rubber_band_status)
14908         gtk_tree_view_stop_rubber_band (tree_view);
14909     }
14910 }
14911
14912 static void
14913 gtk_tree_view_state_changed (GtkWidget      *widget,
14914                              GtkStateType    previous_state)
14915 {
14916   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
14917
14918   if (GTK_WIDGET_REALIZED (widget))
14919     {
14920       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
14921       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
14922     }
14923
14924   gtk_widget_queue_draw (widget);
14925 }
14926
14927 /**
14928  * gtk_tree_view_get_grid_lines:
14929  * @tree_view: a #GtkTreeView
14930  *
14931  * Returns which grid lines are enabled in @tree_view.
14932  *
14933  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
14934  * are enabled.
14935  *
14936  * Since: 2.10
14937  */
14938 GtkTreeViewGridLines
14939 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
14940 {
14941   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
14942
14943   return tree_view->priv->grid_lines;
14944 }
14945
14946 /**
14947  * gtk_tree_view_set_grid_lines:
14948  * @tree_view: a #GtkTreeView
14949  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
14950  * enable.
14951  *
14952  * Sets which grid lines to draw in @tree_view.
14953  *
14954  * Since: 2.10
14955  */
14956 void
14957 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
14958                               GtkTreeViewGridLines   grid_lines)
14959 {
14960   GtkTreeViewPrivate *priv;
14961   GtkWidget *widget;
14962   GtkTreeViewGridLines old_grid_lines;
14963
14964   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14965
14966   priv = tree_view->priv;
14967   widget = GTK_WIDGET (tree_view);
14968
14969   old_grid_lines = priv->grid_lines;
14970   priv->grid_lines = grid_lines;
14971
14972   if (GTK_WIDGET_REALIZED (widget))
14973     {
14974       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
14975           priv->grid_line_gc)
14976         {
14977           g_object_unref (priv->grid_line_gc);
14978           priv->grid_line_gc = NULL;
14979         }
14980
14981       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
14982           !priv->grid_line_gc)
14983         {
14984           gint line_width;
14985           guint8 *dash_list;
14986
14987           gtk_widget_style_get (widget,
14988                                 "grid-line-width", &line_width,
14989                                 "grid-line-pattern", (gchar *)&dash_list,
14990                                 NULL);
14991
14992           priv->grid_line_gc = gdk_gc_new (widget->window);
14993           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
14994
14995           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
14996                                       GDK_LINE_ON_OFF_DASH,
14997                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
14998           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
14999
15000           g_free (dash_list);
15001         }
15002     }
15003
15004   if (old_grid_lines != grid_lines)
15005     {
15006       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15007
15008       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15009     }
15010 }
15011
15012 /**
15013  * gtk_tree_view_get_enable_tree_lines:
15014  * @tree_view: a #GtkTreeView.
15015  *
15016  * Returns whether or not tree lines are drawn in @tree_view.
15017  *
15018  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15019  * otherwise.
15020  *
15021  * Since: 2.10
15022  */
15023 gboolean
15024 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15025 {
15026   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15027
15028   return tree_view->priv->tree_lines_enabled;
15029 }
15030
15031 /**
15032  * gtk_tree_view_set_enable_tree_lines:
15033  * @tree_view: a #GtkTreeView
15034  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15035  *
15036  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15037  * This does not have any visible effects for lists.
15038  *
15039  * Since: 2.10
15040  */
15041 void
15042 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15043                                      gboolean     enabled)
15044 {
15045   GtkTreeViewPrivate *priv;
15046   GtkWidget *widget;
15047   gboolean was_enabled;
15048
15049   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15050
15051   enabled = enabled != FALSE;
15052
15053   priv = tree_view->priv;
15054   widget = GTK_WIDGET (tree_view);
15055
15056   was_enabled = priv->tree_lines_enabled;
15057
15058   priv->tree_lines_enabled = enabled;
15059
15060   if (GTK_WIDGET_REALIZED (widget))
15061     {
15062       if (!enabled && priv->tree_line_gc)
15063         {
15064           g_object_unref (priv->tree_line_gc);
15065           priv->tree_line_gc = NULL;
15066         }
15067
15068       if (enabled && !priv->tree_line_gc)
15069         {
15070           gint line_width;
15071           guint8 *dash_list;
15072           gtk_widget_style_get (widget,
15073                                 "tree-line-width", &line_width,
15074                                 "tree-line-pattern", (gchar *)&dash_list,
15075                                 NULL);
15076
15077           priv->tree_line_gc = gdk_gc_new (widget->window);
15078           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15079
15080           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15081                                       GDK_LINE_ON_OFF_DASH,
15082                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15083           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15084
15085           g_free (dash_list);
15086         }
15087     }
15088
15089   if (was_enabled != enabled)
15090     {
15091       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15092
15093       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15094     }
15095 }
15096
15097
15098 /**
15099  * gtk_tree_view_set_show_expanders:
15100  * @tree_view: a #GtkTreeView
15101  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15102  *
15103  * Sets whether to draw and enable expanders and indent child rows in
15104  * @tree_view.  When disabled there will be no expanders visible in trees
15105  * and there will be no way to expand and collapse rows by default.  Also
15106  * note that hiding the expanders will disable the default indentation.  You
15107  * can set a custom indentation in this case using
15108  * gtk_tree_view_set_level_indentation().
15109  * This does not have any visible effects for lists.
15110  *
15111  * Since: 2.12
15112  */
15113 void
15114 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15115                                   gboolean     enabled)
15116 {
15117   gboolean was_enabled;
15118
15119   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15120
15121   enabled = enabled != FALSE;
15122   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15123
15124   if (enabled)
15125     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15126   else
15127     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15128
15129   if (was_enabled != was_enabled)
15130     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15131 }
15132
15133 /**
15134  * gtk_tree_view_get_show_expanders:
15135  * @tree_view: a #GtkTreeView.
15136  *
15137  * Returns whether or not expanders are drawn in @tree_view.
15138  *
15139  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15140  * otherwise.
15141  *
15142  * Since: 2.12
15143  */
15144 gboolean
15145 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15146 {
15147   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15148
15149   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15150 }
15151
15152 /**
15153  * gtk_tree_view_set_level_indentation:
15154  * @tree_view: a #GtkTreeView
15155  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15156  *
15157  * Sets the amount of extra indentation for child levels to use in @tree_view
15158  * in addition to the default indentation.  The value should be specified in
15159  * pixels, a value of 0 disables this feature and in this case only the default
15160  * indentation will be used.
15161  * This does not have any visible effects for lists.
15162  *
15163  * Since: 2.12
15164  */
15165 void
15166 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15167                                      gint         indentation)
15168 {
15169   tree_view->priv->level_indentation = indentation;
15170
15171   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15172 }
15173
15174 /**
15175  * gtk_tree_view_get_level_indentation:
15176  * @tree_view: a #GtkTreeView.
15177  *
15178  * Returns the amount, in pixels, of extra indentation for child levels
15179  * in @tree_view.
15180  *
15181  * Return value: the amount of extra indentation for child levels in
15182  * @tree_view.  A return value of 0 means that this feature is disabled.
15183  *
15184  * Since: 2.12
15185  */
15186 gint
15187 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15188 {
15189   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15190
15191   return tree_view->priv->level_indentation;
15192 }
15193
15194 /**
15195  * gtk_tree_view_set_tooltip_row:
15196  * @tree_view: a #GtkTreeView
15197  * @tooltip: a #GtkTooltip
15198  * @path: a #GtkTreePath
15199  *
15200  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15201  * See also gtk_tooltip_set_tip_area().
15202  *
15203  * Since: 2.12
15204  */
15205 void
15206 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15207                                GtkTooltip  *tooltip,
15208                                GtkTreePath *path)
15209 {
15210   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15211   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15212
15213   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15214 }
15215
15216 /**
15217  * gtk_tree_view_set_tooltip_cell:
15218  * @tree_view: a #GtkTreeView
15219  * @tooltip: a #GtkTooltip
15220  * @path: a #GtkTreePath or %NULL
15221  * @column: a #GtkTreeViewColumn or %NULL
15222  * @cell: a #GtkCellRendererText or %NULL
15223  *
15224  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15225  * in common.  For example if @path is %NULL and @column is set, the tip
15226  * area will be set to the full area covered by @column.  See also
15227  * gtk_tooltip_set_tip_area().
15228  *
15229  * Since: 2.12
15230  */
15231 void
15232 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15233                                 GtkTooltip        *tooltip,
15234                                 GtkTreePath       *path,
15235                                 GtkTreeViewColumn *column,
15236                                 GtkCellRenderer   *cell)
15237 {
15238   GdkRectangle rect;
15239
15240   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15241   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15242
15243   if (column)
15244     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
15245
15246   if (cell)
15247     g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
15248
15249   /* Determine x values. */
15250   if (column && cell)
15251     {
15252       GdkRectangle tmp;
15253       gint start, width;
15254
15255       gtk_tree_view_get_cell_area (tree_view, NULL, column, &tmp);
15256       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15257
15258       /* FIXME: a need a path here to correctly correct for indent */
15259
15260       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15261                                                          tmp.x + start, 0,
15262                                                          &rect.x, NULL);
15263       rect.width = width;
15264     }
15265   else if (column)
15266     {
15267       GdkRectangle tmp;
15268
15269       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15270       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15271                                                          tmp.x, 0,
15272                                                          &rect.x, NULL);
15273       rect.width = tmp.width;
15274     }
15275   else
15276     {
15277       rect.x = 0;
15278       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15279     }
15280
15281   /* Determine y values. */
15282   if (path)
15283     {
15284       GdkRectangle tmp;
15285
15286       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15287       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15288                                                          0, tmp.y,
15289                                                          NULL, &rect.y);
15290       rect.height = tmp.height;
15291     }
15292   else
15293     {
15294       rect.y = 0;
15295       rect.height = tree_view->priv->vadjustment->page_size;
15296     }
15297
15298   gtk_tooltip_set_tip_area (tooltip, &rect);
15299 }
15300
15301 /**
15302  * gtk_tree_view_get_tooltip_context:
15303  * @tree_view: a #GtkTreeView
15304  * @x: the x coordinate (relative to widget coordinates)
15305  * @y: the y coordinate (relative to widget coordinates)
15306  * @keyboard_tip: whether this is a keyboard tooltip or not
15307  * @model: a pointer to receive a #GtkTreeModel or %NULL
15308  * @path: a pointer to receive a #GtkTreePath or %NULL
15309  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15310  *
15311  * This function is supposed to be used in a #GtkWidget::query-tooltip
15312  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15313  * which are received in the signal handler, should be passed to this
15314  * function without modification.
15315  *
15316  * The return value indicates whether there is a tree view row at the given
15317  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15318  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15319  * @model, @path and @iter which have been provided will be set to point to
15320  * that row and the corresponding model.  @x and @y will always be converted
15321  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15322  *
15323  * Return value: whether or not the given tooltip context points to a row.
15324  *
15325  * Since: 2.12
15326  */
15327 gboolean
15328 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15329                                    gint          *x,
15330                                    gint          *y,
15331                                    gboolean       keyboard_tip,
15332                                    GtkTreeModel **model,
15333                                    GtkTreePath  **path,
15334                                    GtkTreeIter   *iter)
15335 {
15336   GtkTreePath *tmppath = NULL;
15337
15338   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15339   g_return_val_if_fail (x != NULL, FALSE);
15340   g_return_val_if_fail (y != NULL, FALSE);
15341
15342   if (keyboard_tip)
15343     {
15344       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15345
15346       if (!tmppath)
15347         return FALSE;
15348     }
15349   else
15350     {
15351       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15352                                                          x, y);
15353
15354       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15355                                           &tmppath, NULL, NULL, NULL))
15356         return FALSE;
15357     }
15358
15359   if (model)
15360     *model = gtk_tree_view_get_model (tree_view);
15361
15362   if (iter)
15363     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15364                              iter, tmppath);
15365
15366   if (path)
15367     *path = tmppath;
15368   else
15369     gtk_tree_path_free (tmppath);
15370
15371   return TRUE;
15372 }
15373
15374 static gboolean
15375 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15376                                     gint        x,
15377                                     gint        y,
15378                                     gboolean    keyboard_tip,
15379                                     GtkTooltip *tooltip,
15380                                     gpointer    data)
15381 {
15382   gchar *str;
15383   GtkTreeIter iter;
15384   GtkTreePath *path;
15385   GtkTreeModel *model;
15386   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15387
15388   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15389                                           &x, &y,
15390                                           keyboard_tip,
15391                                           &model, &path, &iter))
15392     return FALSE;
15393
15394   gtk_tree_model_get (model, &iter, tree_view->priv->tooltip_column, &str, -1);
15395
15396   if (!str)
15397     {
15398       gtk_tree_path_free (path);
15399       return FALSE;
15400     }
15401
15402   gtk_tooltip_set_markup (tooltip, str);
15403   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15404
15405   gtk_tree_path_free (path);
15406   g_free (str);
15407
15408   return TRUE;
15409 }
15410
15411 /**
15412  * gtk_tree_view_set_tooltip_column:
15413  * @tree_view: a #GtkTreeView
15414  * @column: an integer, which is a valid column number for @tree_view's model
15415  *
15416  * If you only plan to have simple (text-only) tooltips on full rows, you
15417  * can use this function to have #GtkTreeView handle these automatically
15418  * for you. @column should be set to the column in @tree_view's model
15419  * containing the tooltip texts, or -1 to disable this feature.
15420  *
15421  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15422  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15423  *
15424  * Since: 2.12
15425  */
15426 void
15427 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15428                                   gint         column)
15429 {
15430   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15431
15432   if (column == tree_view->priv->tooltip_column)
15433     return;
15434
15435   if (column == -1)
15436     {
15437       g_signal_handlers_disconnect_by_func (tree_view,
15438                                             gtk_tree_view_set_tooltip_query_cb,
15439                                             NULL);
15440       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15441     }
15442   else
15443     {
15444       if (tree_view->priv->tooltip_column == -1)
15445         {
15446           g_signal_connect (tree_view, "query-tooltip",
15447                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15448           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15449         }
15450     }
15451
15452   tree_view->priv->tooltip_column = column;
15453   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15454 }
15455
15456 /**
15457  * gtk_tree_view_get_tooltip_column:
15458  * @tree_view: a #GtkTreeView
15459  *
15460  * Returns the column of @tree_view's model which is being used for
15461  * displaying tooltips on @tree_view's rows.
15462  *
15463  * Return value: the index of the tooltip column that is currently being
15464  * used, or -1 if this is disabled.
15465  *
15466  * Since: 2.12
15467  */
15468 gint
15469 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15470 {
15471   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15472
15473   return tree_view->priv->tooltip_column;
15474 }
15475
15476 #define __GTK_TREE_VIEW_C__
15477 #include "gtkaliasdef.c"