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                                                          TRUE,
 599                                                          GTK_PARAM_READWRITE));
 600
 601   g_object_class_install_property (o_class,
 602                                    PROP_EXPANDER_COLUMN,
 603                                    g_param_spec_object ("expander-column",
 604                                                         P_("Expander Column"),
 605                                                         P_("Set the column for the expander column"),
 606                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 607                                                         GTK_PARAM_READWRITE));
 608
 609   g_object_class_install_property (o_class,
 610                                    PROP_REORDERABLE,
 611                                    g_param_spec_boolean ("reorderable",
 612                                                          P_("Reorderable"),
 613                                                          P_("View is reorderable"),
 614                                                          FALSE,
 615                                                          GTK_PARAM_READWRITE));
 616
 617   g_object_class_install_property (o_class,
 618                                    PROP_RULES_HINT,
 619                                    g_param_spec_boolean ("rules-hint",
 620                                                          P_("Rules Hint"),
 621                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 622                                                          FALSE,
 623                                                          GTK_PARAM_READWRITE));
 624
 625     g_object_class_install_property (o_class,
 626                                      PROP_ENABLE_SEARCH,
 627                                      g_param_spec_boolean ("enable-search",
 628                                                            P_("Enable Search"),
 629                                                            P_("View allows user to search through columns interactively"),
 630                                                            TRUE,
 631                                                            GTK_PARAM_READWRITE));
 632
 633     g_object_class_install_property (o_class,
 634                                      PROP_SEARCH_COLUMN,
 635                                      g_param_spec_int ("search-column",
 636                                                        P_("Search Column"),
 637                                                        P_("Model column to search through 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, 0, "move_cursor", 2,
1132                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1133                                 G_TYPE_INT, 1);
1134
1135   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move_cursor", 2,
1136                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1137                                 G_TYPE_INT, -1);
1138
1139   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move_cursor", 2,
1140                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1141                                 G_TYPE_INT, 1);
1142
1143   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move_cursor", 2,
1144                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1145                                 G_TYPE_INT, -1);
1146
1147   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1148                                 "move_cursor", 2,
1149                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1150                                 G_TYPE_INT, 1);
1151
1152   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1153                                 "move_cursor", 2,
1154                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1155                                 G_TYPE_INT, -1);
1156
1157   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1158                                 "move_cursor", 2,
1159                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1160                                 G_TYPE_INT, 1);
1161
1162   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1163                                 "move_cursor", 2,
1164                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1165                                 G_TYPE_INT, -1);
1166
1167   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_row", 0);
1168
1169   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
1170   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select_all", 0);
1171
1172   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
1173   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect_all", 0);
1174
1175   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select_cursor_row", 1,
1176                                 G_TYPE_BOOLEAN, TRUE);
1177
1178   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_row", 1,
1179                                 G_TYPE_BOOLEAN, TRUE);
1180   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select_cursor_row", 1,
1181                                 G_TYPE_BOOLEAN, TRUE);
1182   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select_cursor_row", 1,
1183                                 G_TYPE_BOOLEAN, TRUE);
1184   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select_cursor_row", 1,
1185                                 G_TYPE_BOOLEAN, TRUE);
1186
1187   /* expand and collapse rows */
1188   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand_collapse_cursor_row", 3,
1189                                 G_TYPE_BOOLEAN, TRUE,
1190                                 G_TYPE_BOOLEAN, TRUE,
1191                                 G_TYPE_BOOLEAN, FALSE);
1192
1193   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1194                                 "expand_collapse_cursor_row", 3,
1195                                 G_TYPE_BOOLEAN, TRUE,
1196                                 G_TYPE_BOOLEAN, TRUE,
1197                                 G_TYPE_BOOLEAN, TRUE);
1198   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1199                                 "expand_collapse_cursor_row", 3,
1200                                 G_TYPE_BOOLEAN, TRUE,
1201                                 G_TYPE_BOOLEAN, TRUE,
1202                                 G_TYPE_BOOLEAN, TRUE);
1203
1204   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1205                                 "expand_collapse_cursor_row", 3,
1206                                 G_TYPE_BOOLEAN, TRUE,
1207                                 G_TYPE_BOOLEAN, FALSE,
1208                                 G_TYPE_BOOLEAN, FALSE);
1209   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1210                                 "expand_collapse_cursor_row", 3,
1211                                 G_TYPE_BOOLEAN, TRUE,
1212                                 G_TYPE_BOOLEAN, FALSE,
1213                                 G_TYPE_BOOLEAN, FALSE);
1214
1215   /* Not doable on US keyboards */
1216   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1217                                 G_TYPE_BOOLEAN, TRUE,
1218                                 G_TYPE_BOOLEAN, TRUE,
1219                                 G_TYPE_BOOLEAN, TRUE);
1220   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand_collapse_cursor_row", 3,
1221                                 G_TYPE_BOOLEAN, TRUE,
1222                                 G_TYPE_BOOLEAN, TRUE,
1223                                 G_TYPE_BOOLEAN, FALSE);
1224   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1225                                 G_TYPE_BOOLEAN, TRUE,
1226                                 G_TYPE_BOOLEAN, TRUE,
1227                                 G_TYPE_BOOLEAN, TRUE);
1228   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1229                                 G_TYPE_BOOLEAN, TRUE,
1230                                 G_TYPE_BOOLEAN, TRUE,
1231                                 G_TYPE_BOOLEAN, TRUE);
1232   gtk_binding_entry_add_signal (binding_set, GDK_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_KP_Right, GDK_SHIFT_MASK,
1238                                 "expand_collapse_cursor_row", 3,
1239                                 G_TYPE_BOOLEAN, FALSE,
1240                                 G_TYPE_BOOLEAN, TRUE,
1241                                 G_TYPE_BOOLEAN, TRUE);
1242   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1243                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1244                                 "expand_collapse_cursor_row", 3,
1245                                 G_TYPE_BOOLEAN, FALSE,
1246                                 G_TYPE_BOOLEAN, TRUE,
1247                                 G_TYPE_BOOLEAN, TRUE);
1248   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1249                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1250                                 "expand_collapse_cursor_row", 3,
1251                                 G_TYPE_BOOLEAN, FALSE,
1252                                 G_TYPE_BOOLEAN, TRUE,
1253                                 G_TYPE_BOOLEAN, TRUE);
1254
1255   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand_collapse_cursor_row", 3,
1256                                 G_TYPE_BOOLEAN, TRUE,
1257                                 G_TYPE_BOOLEAN, FALSE,
1258                                 G_TYPE_BOOLEAN, FALSE);
1259   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1260                                 G_TYPE_BOOLEAN, TRUE,
1261                                 G_TYPE_BOOLEAN, FALSE,
1262                                 G_TYPE_BOOLEAN, TRUE);
1263   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand_collapse_cursor_row", 3,
1264                                 G_TYPE_BOOLEAN, TRUE,
1265                                 G_TYPE_BOOLEAN, FALSE,
1266                                 G_TYPE_BOOLEAN, FALSE);
1267   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1268                                 G_TYPE_BOOLEAN, TRUE,
1269                                 G_TYPE_BOOLEAN, FALSE,
1270                                 G_TYPE_BOOLEAN, TRUE);
1271   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
1272                                 "expand_collapse_cursor_row", 3,
1273                                 G_TYPE_BOOLEAN, FALSE,
1274                                 G_TYPE_BOOLEAN, FALSE,
1275                                 G_TYPE_BOOLEAN, TRUE);
1276   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
1277                                 "expand_collapse_cursor_row", 3,
1278                                 G_TYPE_BOOLEAN, FALSE,
1279                                 G_TYPE_BOOLEAN, FALSE,
1280                                 G_TYPE_BOOLEAN, TRUE);
1281   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1282                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1283                                 "expand_collapse_cursor_row", 3,
1284                                 G_TYPE_BOOLEAN, FALSE,
1285                                 G_TYPE_BOOLEAN, FALSE,
1286                                 G_TYPE_BOOLEAN, TRUE);
1287   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
1288                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1289                                 "expand_collapse_cursor_row", 3,
1290                                 G_TYPE_BOOLEAN, FALSE,
1291                                 G_TYPE_BOOLEAN, FALSE,
1292                                 G_TYPE_BOOLEAN, TRUE);
1293
1294   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select_cursor_parent", 0);
1295   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select_cursor_parent", 0);
1296
1297   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start_interactive_search", 0);
1298
1299   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start_interactive_search", 0);
1300
1301   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1302 }
1303
1304 static void
1305 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1306 {
1307   iface->add_child = gtk_tree_view_buildable_add_child;
1308 }
1309
1310 static void
1311 gtk_tree_view_init (GtkTreeView *tree_view)
1312 {
1313   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1314
1315   GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
1316
1317   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1318
1319   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1320                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1321                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1322
1323   /* We need some padding */
1324   tree_view->priv->dy = 0;
1325   tree_view->priv->cursor_offset = 0;
1326   tree_view->priv->n_columns = 0;
1327   tree_view->priv->header_height = 1;
1328   tree_view->priv->x_drag = 0;
1329   tree_view->priv->drag_pos = -1;
1330   tree_view->priv->header_has_focus = FALSE;
1331   tree_view->priv->pressed_button = -1;
1332   tree_view->priv->press_start_x = -1;
1333   tree_view->priv->press_start_y = -1;
1334   tree_view->priv->reorderable = FALSE;
1335   tree_view->priv->presize_handler_timer = 0;
1336   tree_view->priv->scroll_sync_timer = 0;
1337   tree_view->priv->fixed_height = -1;
1338   tree_view->priv->fixed_height_mode = FALSE;
1339   tree_view->priv->fixed_height_check = 0;
1340   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1341   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1342   tree_view->priv->enable_search = TRUE;
1343   tree_view->priv->search_column = -1;
1344   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1345   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1346   tree_view->priv->search_custom_entry_set = FALSE;
1347   tree_view->priv->typeselect_flush_timeout = 0;
1348   tree_view->priv->init_hadjust_value = TRUE;
1349   tree_view->priv->width = 0;
1350
1351   tree_view->priv->hover_selection = FALSE;
1352   tree_view->priv->hover_expand = FALSE;
1353
1354   tree_view->priv->level_indentation = 0;
1355
1356   tree_view->priv->rubber_banding_enable = FALSE;
1357
1358   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1359   tree_view->priv->tree_lines_enabled = FALSE;
1360
1361   tree_view->priv->tooltip_column = -1;
1362 }
1363
1364 \f
1365
1366 /* GObject Methods
1367  */
1368
1369 static void
1370 gtk_tree_view_set_property (GObject         *object,
1371                             guint            prop_id,
1372                             const GValue    *value,
1373                             GParamSpec      *pspec)
1374 {
1375   GtkTreeView *tree_view;
1376
1377   tree_view = GTK_TREE_VIEW (object);
1378
1379   switch (prop_id)
1380     {
1381     case PROP_MODEL:
1382       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1383       break;
1384     case PROP_HADJUSTMENT:
1385       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1386       break;
1387     case PROP_VADJUSTMENT:
1388       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1389       break;
1390     case PROP_HEADERS_VISIBLE:
1391       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1392       break;
1393     case PROP_HEADERS_CLICKABLE:
1394       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1395       break;
1396     case PROP_EXPANDER_COLUMN:
1397       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1398       break;
1399     case PROP_REORDERABLE:
1400       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1401       break;
1402     case PROP_RULES_HINT:
1403       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1404       break;
1405     case PROP_ENABLE_SEARCH:
1406       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1407       break;
1408     case PROP_SEARCH_COLUMN:
1409       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1410       break;
1411     case PROP_FIXED_HEIGHT_MODE:
1412       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1413       break;
1414     case PROP_HOVER_SELECTION:
1415       tree_view->priv->hover_selection = g_value_get_boolean (value);
1416       break;
1417     case PROP_HOVER_EXPAND:
1418       tree_view->priv->hover_expand = g_value_get_boolean (value);
1419       break;
1420     case PROP_SHOW_EXPANDERS:
1421       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1422       break;
1423     case PROP_LEVEL_INDENTATION:
1424       tree_view->priv->level_indentation = g_value_get_int (value);
1425       break;
1426     case PROP_RUBBER_BANDING:
1427       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1428       break;
1429     case PROP_ENABLE_GRID_LINES:
1430       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1431       break;
1432     case PROP_ENABLE_TREE_LINES:
1433       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1434       break;
1435     case PROP_TOOLTIP_COLUMN:
1436       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1437       break;
1438     default:
1439       break;
1440     }
1441 }
1442
1443 static void
1444 gtk_tree_view_get_property (GObject    *object,
1445                             guint       prop_id,
1446                             GValue     *value,
1447                             GParamSpec *pspec)
1448 {
1449   GtkTreeView *tree_view;
1450
1451   tree_view = GTK_TREE_VIEW (object);
1452
1453   switch (prop_id)
1454     {
1455     case PROP_MODEL:
1456       g_value_set_object (value, tree_view->priv->model);
1457       break;
1458     case PROP_HADJUSTMENT:
1459       g_value_set_object (value, tree_view->priv->hadjustment);
1460       break;
1461     case PROP_VADJUSTMENT:
1462       g_value_set_object (value, tree_view->priv->vadjustment);
1463       break;
1464     case PROP_HEADERS_VISIBLE:
1465       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1466       break;
1467     case PROP_HEADERS_CLICKABLE:
1468       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1469       break;
1470     case PROP_EXPANDER_COLUMN:
1471       g_value_set_object (value, tree_view->priv->expander_column);
1472       break;
1473     case PROP_REORDERABLE:
1474       g_value_set_boolean (value, tree_view->priv->reorderable);
1475       break;
1476     case PROP_RULES_HINT:
1477       g_value_set_boolean (value, tree_view->priv->has_rules);
1478       break;
1479     case PROP_ENABLE_SEARCH:
1480       g_value_set_boolean (value, tree_view->priv->enable_search);
1481       break;
1482     case PROP_SEARCH_COLUMN:
1483       g_value_set_int (value, tree_view->priv->search_column);
1484       break;
1485     case PROP_FIXED_HEIGHT_MODE:
1486       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1487       break;
1488     case PROP_HOVER_SELECTION:
1489       g_value_set_boolean (value, tree_view->priv->hover_selection);
1490       break;
1491     case PROP_HOVER_EXPAND:
1492       g_value_set_boolean (value, tree_view->priv->hover_expand);
1493       break;
1494     case PROP_SHOW_EXPANDERS:
1495       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1496       break;
1497     case PROP_LEVEL_INDENTATION:
1498       g_value_set_int (value, tree_view->priv->level_indentation);
1499       break;
1500     case PROP_RUBBER_BANDING:
1501       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1502       break;
1503     case PROP_ENABLE_GRID_LINES:
1504       g_value_set_enum (value, tree_view->priv->grid_lines);
1505       break;
1506     case PROP_ENABLE_TREE_LINES:
1507       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1508       break;
1509     case PROP_TOOLTIP_COLUMN:
1510       g_value_set_int (value, tree_view->priv->tooltip_column);
1511       break;
1512     default:
1513       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1514       break;
1515     }
1516 }
1517
1518 static void
1519 gtk_tree_view_finalize (GObject *object)
1520 {
1521   (* G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize) (object);
1522 }
1523
1524 \f
1525
1526 static void
1527 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1528                                    GtkBuilder  *builder,
1529                                    GObject     *child,
1530                                    const gchar *type)
1531 {
1532   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1533 }
1534
1535 /* GtkObject Methods
1536  */
1537
1538 static void
1539 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1540 {
1541   _gtk_rbtree_free (tree_view->priv->tree);
1542
1543   tree_view->priv->tree = NULL;
1544   tree_view->priv->button_pressed_node = NULL;
1545   tree_view->priv->button_pressed_tree = NULL;
1546   tree_view->priv->prelight_tree = NULL;
1547   tree_view->priv->prelight_node = NULL;
1548   tree_view->priv->expanded_collapsed_node = NULL;
1549   tree_view->priv->expanded_collapsed_tree = NULL;
1550 }
1551
1552 static void
1553 gtk_tree_view_destroy (GtkObject *object)
1554 {
1555   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1556   GList *list;
1557
1558   gtk_tree_view_stop_editing (tree_view, TRUE);
1559
1560   if (tree_view->priv->columns != NULL)
1561     {
1562       list = tree_view->priv->columns;
1563       while (list)
1564         {
1565           GtkTreeViewColumn *column;
1566           column = GTK_TREE_VIEW_COLUMN (list->data);
1567           list = list->next;
1568           gtk_tree_view_remove_column (tree_view, column);
1569         }
1570       tree_view->priv->columns = NULL;
1571     }
1572
1573   if (tree_view->priv->tree != NULL)
1574     {
1575       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1576
1577       gtk_tree_view_free_rbtree (tree_view);
1578     }
1579
1580   if (tree_view->priv->selection != NULL)
1581     {
1582       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1583       g_object_unref (tree_view->priv->selection);
1584       tree_view->priv->selection = NULL;
1585     }
1586
1587   if (tree_view->priv->scroll_to_path != NULL)
1588     {
1589       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1590       tree_view->priv->scroll_to_path = NULL;
1591     }
1592
1593   if (tree_view->priv->drag_dest_row != NULL)
1594     {
1595       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1596       tree_view->priv->drag_dest_row = NULL;
1597     }
1598
1599   if (tree_view->priv->last_button_press != NULL)
1600     {
1601       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
1602       tree_view->priv->last_button_press = NULL;
1603     }
1604
1605   if (tree_view->priv->last_button_press_2 != NULL)
1606     {
1607       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
1608       tree_view->priv->last_button_press_2 = NULL;
1609     }
1610
1611   if (tree_view->priv->top_row != NULL)
1612     {
1613       gtk_tree_row_reference_free (tree_view->priv->top_row);
1614       tree_view->priv->top_row = NULL;
1615     }
1616
1617   if (tree_view->priv->column_drop_func_data &&
1618       tree_view->priv->column_drop_func_data_destroy)
1619     {
1620       (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
1621       tree_view->priv->column_drop_func_data = NULL;
1622     }
1623
1624   if (tree_view->priv->destroy_count_destroy &&
1625       tree_view->priv->destroy_count_data)
1626     {
1627       (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
1628       tree_view->priv->destroy_count_data = NULL;
1629     }
1630
1631   gtk_tree_row_reference_free (tree_view->priv->cursor);
1632   tree_view->priv->cursor = NULL;
1633
1634   gtk_tree_row_reference_free (tree_view->priv->anchor);
1635   tree_view->priv->anchor = NULL;
1636
1637   /* destroy interactive search dialog */
1638   if (tree_view->priv->search_window)
1639     {
1640       gtk_widget_destroy (tree_view->priv->search_window);
1641       tree_view->priv->search_window = NULL;
1642       tree_view->priv->search_entry = NULL;
1643       if (tree_view->priv->typeselect_flush_timeout)
1644         {
1645           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1646           tree_view->priv->typeselect_flush_timeout = 0;
1647         }
1648     }
1649
1650   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1651     {
1652       (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
1653       tree_view->priv->search_user_data = NULL;
1654     }
1655
1656   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1657     {
1658       (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
1659       tree_view->priv->search_position_user_data = NULL;
1660     }
1661
1662   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1663     {
1664       (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
1665       tree_view->priv->row_separator_data = NULL;
1666     }
1667
1668   gtk_tree_view_set_model (tree_view, NULL);
1669
1670   if (tree_view->priv->hadjustment)
1671     {
1672       g_object_unref (tree_view->priv->hadjustment);
1673       tree_view->priv->hadjustment = NULL;
1674     }
1675   if (tree_view->priv->vadjustment)
1676     {
1677       g_object_unref (tree_view->priv->vadjustment);
1678       tree_view->priv->vadjustment = NULL;
1679     }
1680
1681   if (GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy)
1682     (* GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy) (object);
1683 }
1684
1685 \f
1686
1687 /* GtkWidget Methods
1688  */
1689
1690 /* GtkWidget::map helper */
1691 static void
1692 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1693 {
1694   GList *list;
1695
1696   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1697
1698   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1699     {
1700       GtkTreeViewColumn *column;
1701
1702       for (list = tree_view->priv->columns; list; list = list->next)
1703         {
1704           column = list->data;
1705           if (GTK_WIDGET_VISIBLE (column->button) &&
1706               !GTK_WIDGET_MAPPED (column->button))
1707             gtk_widget_map (column->button);
1708         }
1709       for (list = tree_view->priv->columns; list; list = list->next)
1710         {
1711           column = list->data;
1712           if (column->visible == FALSE)
1713             continue;
1714           if (column->resizable)
1715             {
1716               gdk_window_raise (column->window);
1717               gdk_window_show (column->window);
1718             }
1719           else
1720             gdk_window_hide (column->window);
1721         }
1722       gdk_window_show (tree_view->priv->header_window);
1723     }
1724 }
1725
1726 static void
1727 gtk_tree_view_map (GtkWidget *widget)
1728 {
1729   GList *tmp_list;
1730   GtkTreeView *tree_view;
1731
1732   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1733
1734   tree_view = GTK_TREE_VIEW (widget);
1735
1736   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1737
1738   tmp_list = tree_view->priv->children;
1739   while (tmp_list)
1740     {
1741       GtkTreeViewChild *child = tmp_list->data;
1742       tmp_list = tmp_list->next;
1743
1744       if (GTK_WIDGET_VISIBLE (child->widget))
1745         {
1746           if (!GTK_WIDGET_MAPPED (child->widget))
1747             gtk_widget_map (child->widget);
1748         }
1749     }
1750   gdk_window_show (tree_view->priv->bin_window);
1751
1752   gtk_tree_view_map_buttons (tree_view);
1753
1754   gdk_window_show (widget->window);
1755 }
1756
1757 static void
1758 gtk_tree_view_realize (GtkWidget *widget)
1759 {
1760   GList *tmp_list;
1761   GtkTreeView *tree_view;
1762   GdkWindowAttr attributes;
1763   gint attributes_mask;
1764
1765   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1766
1767   tree_view = GTK_TREE_VIEW (widget);
1768
1769   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1770
1771   /* Make the main, clipping window */
1772   attributes.window_type = GDK_WINDOW_CHILD;
1773   attributes.x = widget->allocation.x;
1774   attributes.y = widget->allocation.y;
1775   attributes.width = widget->allocation.width;
1776   attributes.height = widget->allocation.height;
1777   attributes.wclass = GDK_INPUT_OUTPUT;
1778   attributes.visual = gtk_widget_get_visual (widget);
1779   attributes.colormap = gtk_widget_get_colormap (widget);
1780   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1781
1782   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1783
1784   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1785                                    &attributes, attributes_mask);
1786   gdk_window_set_user_data (widget->window, widget);
1787
1788   /* Make the window for the tree */
1789   attributes.x = 0;
1790   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1791   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1792   attributes.height = widget->allocation.height;
1793   attributes.event_mask = GDK_EXPOSURE_MASK |
1794     GDK_SCROLL_MASK |
1795     GDK_POINTER_MOTION_MASK |
1796     GDK_ENTER_NOTIFY_MASK |
1797     GDK_LEAVE_NOTIFY_MASK |
1798     GDK_BUTTON_PRESS_MASK |
1799     GDK_BUTTON_RELEASE_MASK |
1800     gtk_widget_get_events (widget);
1801
1802   tree_view->priv->bin_window = gdk_window_new (widget->window,
1803                                                 &attributes, attributes_mask);
1804   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1805
1806   /* Make the column header window */
1807   attributes.x = 0;
1808   attributes.y = 0;
1809   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1810   attributes.height = tree_view->priv->header_height;
1811   attributes.event_mask = (GDK_EXPOSURE_MASK |
1812                            GDK_SCROLL_MASK |
1813                            GDK_BUTTON_PRESS_MASK |
1814                            GDK_BUTTON_RELEASE_MASK |
1815                            GDK_KEY_PRESS_MASK |
1816                            GDK_KEY_RELEASE_MASK) |
1817     gtk_widget_get_events (widget);
1818
1819   tree_view->priv->header_window = gdk_window_new (widget->window,
1820                                                    &attributes, attributes_mask);
1821   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1822
1823   /* Add them all up. */
1824   widget->style = gtk_style_attach (widget->style, widget->window);
1825   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1826   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1827   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1828
1829   tmp_list = tree_view->priv->children;
1830   while (tmp_list)
1831     {
1832       GtkTreeViewChild *child = tmp_list->data;
1833       tmp_list = tmp_list->next;
1834
1835       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1836     }
1837
1838   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1839     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1840
1841   /* Need to call those here, since they create GCs */
1842   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1843   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1844
1845   install_presize_handler (tree_view);
1846 }
1847
1848 static void
1849 gtk_tree_view_unrealize (GtkWidget *widget)
1850 {
1851   GtkTreeView *tree_view;
1852   GtkTreeViewPrivate *priv;
1853   GList *list;
1854
1855   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
1856
1857   tree_view = GTK_TREE_VIEW (widget);
1858   priv = tree_view->priv;
1859
1860   if (priv->scroll_timeout != 0)
1861     {
1862       g_source_remove (priv->scroll_timeout);
1863       priv->scroll_timeout = 0;
1864     }
1865
1866   if (priv->auto_expand_timeout != 0)
1867     {
1868       g_source_remove (priv->auto_expand_timeout);
1869       priv->auto_expand_timeout = 0;
1870     }
1871
1872   if (priv->open_dest_timeout != 0)
1873     {
1874       g_source_remove (priv->open_dest_timeout);
1875       priv->open_dest_timeout = 0;
1876     }
1877
1878   if (priv->expand_collapse_timeout != 0)
1879     {
1880       g_source_remove (priv->expand_collapse_timeout);
1881       priv->expand_collapse_timeout = 0;
1882     }
1883
1884   if (priv->presize_handler_timer != 0)
1885     {
1886       g_source_remove (priv->presize_handler_timer);
1887       priv->presize_handler_timer = 0;
1888     }
1889
1890   if (priv->validate_rows_timer != 0)
1891     {
1892       g_source_remove (priv->validate_rows_timer);
1893       priv->validate_rows_timer = 0;
1894     }
1895
1896   if (priv->scroll_sync_timer != 0)
1897     {
1898       g_source_remove (priv->scroll_sync_timer);
1899       priv->scroll_sync_timer = 0;
1900     }
1901
1902   if (priv->typeselect_flush_timeout)
1903     {
1904       g_source_remove (priv->typeselect_flush_timeout);
1905       priv->typeselect_flush_timeout = 0;
1906     }
1907
1908   for (list = priv->columns; list; list = list->next)
1909     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1910
1911   gdk_window_set_user_data (priv->bin_window, NULL);
1912   gdk_window_destroy (priv->bin_window);
1913   priv->bin_window = NULL;
1914
1915   gdk_window_set_user_data (priv->header_window, NULL);
1916   gdk_window_destroy (priv->header_window);
1917   priv->header_window = NULL;
1918
1919   if (priv->drag_window)
1920     {
1921       gdk_window_set_user_data (priv->drag_window, NULL);
1922       gdk_window_destroy (priv->drag_window);
1923       priv->drag_window = NULL;
1924     }
1925
1926   if (priv->drag_highlight_window)
1927     {
1928       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1929       gdk_window_destroy (priv->drag_highlight_window);
1930       priv->drag_highlight_window = NULL;
1931     }
1932
1933   if (priv->tree_line_gc)
1934     {
1935       g_object_unref (priv->tree_line_gc);
1936       priv->tree_line_gc = NULL;
1937     }
1938
1939   if (priv->grid_line_gc)
1940     {
1941       g_object_unref (priv->grid_line_gc);
1942       priv->grid_line_gc = NULL;
1943     }
1944
1945   /* GtkWidget::unrealize destroys children and widget->window */
1946   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize)
1947     (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize) (widget);
1948 }
1949
1950 /* GtkWidget::size_request helper */
1951 static void
1952 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1953 {
1954   GList *list;
1955
1956   tree_view->priv->header_height = 0;
1957
1958   if (tree_view->priv->model)
1959     {
1960       for (list = tree_view->priv->columns; list; list = list->next)
1961         {
1962           GtkRequisition requisition;
1963           GtkTreeViewColumn *column = list->data;
1964
1965           if (column->button == NULL)
1966             continue;
1967
1968           column = list->data;
1969
1970           gtk_widget_size_request (column->button, &requisition);
1971           column->button_request = requisition.width;
1972           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1973         }
1974     }
1975 }
1976
1977
1978 /* Called only by ::size_request */
1979 static void
1980 gtk_tree_view_update_size (GtkTreeView *tree_view)
1981 {
1982   GList *list;
1983   GtkTreeViewColumn *column;
1984   gint i;
1985
1986   if (tree_view->priv->model == NULL)
1987     {
1988       tree_view->priv->width = 0;
1989       tree_view->priv->prev_width = 0;
1990       tree_view->priv->height = 0;
1991       return;
1992     }
1993
1994   tree_view->priv->prev_width = tree_view->priv->width;
1995   tree_view->priv->width = 0;
1996   /* keep this in sync with size_allocate below */
1997   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1998     {
1999       gint real_requested_width = 0;
2000       column = list->data;
2001       if (!column->visible)
2002         continue;
2003
2004       if (column->use_resized_width)
2005         {
2006           real_requested_width = column->resized_width;
2007         }
2008       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2009         {
2010           real_requested_width = column->fixed_width;
2011         }
2012       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2013         {
2014           real_requested_width = MAX (column->requested_width, column->button_request);
2015         }
2016       else
2017         {
2018           real_requested_width = column->requested_width;
2019         }
2020
2021       if (column->min_width != -1)
2022         real_requested_width = MAX (real_requested_width, column->min_width);
2023       if (column->max_width != -1)
2024         real_requested_width = MIN (real_requested_width, column->max_width);
2025
2026       tree_view->priv->width += real_requested_width;
2027     }
2028
2029   if (tree_view->priv->tree == NULL)
2030     tree_view->priv->height = 0;
2031   else
2032     tree_view->priv->height = tree_view->priv->tree->root->offset;
2033 }
2034
2035 static void
2036 gtk_tree_view_size_request (GtkWidget      *widget,
2037                             GtkRequisition *requisition)
2038 {
2039   GtkTreeView *tree_view;
2040   GList *tmp_list;
2041
2042   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
2043
2044   tree_view = GTK_TREE_VIEW (widget);
2045
2046   /* we validate GTK_TREE_VIEW_NUM_ROWS_PER_IDLE rows initially just to make
2047    * sure we have some size. In practice, with a lot of static lists, this
2048    * should get a good width.
2049    */
2050   do_validate_rows (tree_view, FALSE);
2051   gtk_tree_view_size_request_columns (tree_view);
2052   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2053
2054   requisition->width = tree_view->priv->width;
2055   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2056
2057   tmp_list = tree_view->priv->children;
2058
2059   while (tmp_list)
2060     {
2061       GtkTreeViewChild *child = tmp_list->data;
2062       GtkRequisition child_requisition;
2063
2064       tmp_list = tmp_list->next;
2065
2066       if (GTK_WIDGET_VISIBLE (child->widget))
2067         gtk_widget_size_request (child->widget, &child_requisition);
2068     }
2069 }
2070
2071
2072 static void
2073 invalidate_column (GtkTreeView       *tree_view,
2074                    GtkTreeViewColumn *column)
2075 {
2076   gint column_offset = 0;
2077   GList *list;
2078   GtkWidget *widget = GTK_WIDGET (tree_view);
2079   gboolean rtl;
2080
2081   if (!GTK_WIDGET_REALIZED (widget))
2082     return;
2083
2084   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2085   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2086        list;
2087        list = (rtl ? list->prev : list->next))
2088     {
2089       GtkTreeViewColumn *tmpcolumn = list->data;
2090       if (tmpcolumn == column)
2091         {
2092           GdkRectangle invalid_rect;
2093
2094           invalid_rect.x = column_offset;
2095           invalid_rect.y = 0;
2096           invalid_rect.width = column->width;
2097           invalid_rect.height = widget->allocation.height;
2098
2099           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2100           break;
2101         }
2102
2103       column_offset += tmpcolumn->width;
2104     }
2105 }
2106
2107 static void
2108 invalidate_last_column (GtkTreeView *tree_view)
2109 {
2110   GList *last_column;
2111   gboolean rtl;
2112
2113   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2114
2115   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2116        last_column;
2117        last_column = (rtl ? last_column->next : last_column->prev))
2118     {
2119       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2120         {
2121           invalidate_column (tree_view, last_column->data);
2122           return;
2123         }
2124     }
2125 }
2126
2127 static gint
2128 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2129                                                     GtkTreeViewColumn *column)
2130 {
2131   gint real_requested_width;
2132
2133   if (column->use_resized_width)
2134     {
2135       real_requested_width = column->resized_width;
2136     }
2137   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2138     {
2139       real_requested_width = column->fixed_width;
2140     }
2141   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2142     {
2143       real_requested_width = MAX (column->requested_width, column->button_request);
2144     }
2145   else
2146     {
2147       real_requested_width = column->requested_width;
2148       if (real_requested_width < 0)
2149         real_requested_width = 0;
2150     }
2151
2152   if (column->min_width != -1)
2153     real_requested_width = MAX (real_requested_width, column->min_width);
2154   if (column->max_width != -1)
2155     real_requested_width = MIN (real_requested_width, column->max_width);
2156
2157   return real_requested_width;
2158 }
2159
2160 /* GtkWidget::size_allocate helper */
2161 static void
2162 gtk_tree_view_size_allocate_columns (GtkWidget *widget)
2163 {
2164   GtkTreeView *tree_view;
2165   GList *list, *first_column, *last_column;
2166   GtkTreeViewColumn *column;
2167   GtkAllocation allocation;
2168   gint width = 0;
2169   gint extra, extra_per_column;
2170   gint full_requested_width = 0;
2171   gint number_of_expand_columns = 0;
2172   gboolean column_changed = FALSE;
2173   gboolean rtl;
2174
2175   tree_view = GTK_TREE_VIEW (widget);
2176
2177   for (last_column = g_list_last (tree_view->priv->columns);
2178        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2179        last_column = last_column->prev)
2180     ;
2181   if (last_column == NULL)
2182     return;
2183
2184   for (first_column = g_list_first (tree_view->priv->columns);
2185        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2186        first_column = first_column->next)
2187     ;
2188
2189   allocation.y = 0;
2190   allocation.height = tree_view->priv->header_height;
2191
2192   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2193
2194   /* find out how many extra space and expandable columns we have */
2195   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2196     {
2197       column = (GtkTreeViewColumn *)list->data;
2198
2199       if (!column->visible)
2200         continue;
2201
2202       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2203
2204       if (column->expand)
2205         number_of_expand_columns++;
2206     }
2207
2208   extra = MAX (widget->allocation.width - full_requested_width, 0);
2209   if (number_of_expand_columns > 0)
2210     extra_per_column = extra/number_of_expand_columns;
2211   else
2212     extra_per_column = 0;
2213
2214   for (list = (rtl ? last_column : first_column);
2215        list != (rtl ? first_column->prev : last_column->next);
2216        list = (rtl ? list->prev : list->next))
2217     {
2218       gint real_requested_width = 0;
2219       gint old_width;
2220
2221       column = list->data;
2222       old_width = column->width;
2223
2224       if (!column->visible)
2225         continue;
2226
2227       /* We need to handle the dragged button specially.
2228        */
2229       if (column == tree_view->priv->drag_column)
2230         {
2231           GtkAllocation drag_allocation;
2232           gdk_drawable_get_size (tree_view->priv->drag_window,
2233                                  &(drag_allocation.width),
2234                                  &(drag_allocation.height));
2235           drag_allocation.x = 0;
2236           drag_allocation.y = 0;
2237           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2238                                     &drag_allocation);
2239           width += drag_allocation.width;
2240           continue;
2241         }
2242
2243       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2244
2245       allocation.x = width;
2246       column->width = real_requested_width;
2247
2248       if (column->expand)
2249         {
2250           if (number_of_expand_columns == 1)
2251             {
2252               /* We add the remander to the last column as
2253                * */
2254               column->width += extra;
2255             }
2256           else
2257             {
2258               column->width += extra_per_column;
2259               extra -= extra_per_column;
2260               number_of_expand_columns --;
2261             }
2262         }
2263       else if (number_of_expand_columns == 0 &&
2264                list == last_column)
2265         {
2266           column->width += extra;
2267         }
2268
2269       g_object_notify (G_OBJECT (column), "width");
2270
2271       allocation.width = column->width;
2272       width += column->width;
2273
2274       if (column->width > old_width)
2275         column_changed = TRUE;
2276
2277       gtk_widget_size_allocate (column->button, &allocation);
2278
2279       if (column->window)
2280         gdk_window_move_resize (column->window,
2281                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2282                                 allocation.y,
2283                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2284     }
2285
2286   if (column_changed)
2287     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2288 }
2289
2290
2291 static void
2292 gtk_tree_view_size_allocate (GtkWidget     *widget,
2293                              GtkAllocation *allocation)
2294 {
2295   GList *tmp_list;
2296   GtkTreeView *tree_view;
2297   gboolean width_changed = FALSE;
2298   gint old_width = widget->allocation.width;
2299
2300   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
2301
2302   if (allocation->width != widget->allocation.width)
2303     width_changed = TRUE;
2304
2305   widget->allocation = *allocation;
2306
2307   tree_view = GTK_TREE_VIEW (widget);
2308
2309   tmp_list = tree_view->priv->children;
2310
2311   while (tmp_list)
2312     {
2313       GtkAllocation allocation;
2314
2315       GtkTreeViewChild *child = tmp_list->data;
2316       tmp_list = tmp_list->next;
2317
2318       /* totally ignore our child's requisition */
2319       allocation.x = child->x;
2320       allocation.y = child->y;
2321       allocation.width = child->width;
2322       allocation.height = child->height;
2323       gtk_widget_size_allocate (child->widget, &allocation);
2324     }
2325
2326
2327   tree_view->priv->hadjustment->page_size = allocation->width;
2328   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2329   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2330   tree_view->priv->hadjustment->lower = 0;
2331   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2332
2333   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2334      {
2335       if (allocation->width < tree_view->priv->width)
2336          {
2337          if (tree_view->priv->init_hadjust_value)
2338            {
2339            tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2340            tree_view->priv->init_hadjust_value = FALSE;
2341            }
2342          else if(allocation->width != old_width)
2343            tree_view->priv->hadjustment->value = CLAMP(tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2344          else
2345            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);
2346          }
2347       else
2348          {
2349          tree_view->priv->hadjustment->value = 0;
2350          tree_view->priv->init_hadjust_value = TRUE;
2351          }
2352      }
2353   else
2354      if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2355         tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2356
2357   gtk_adjustment_changed (tree_view->priv->hadjustment);
2358
2359   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2360   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2361   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2362   tree_view->priv->vadjustment->lower = 0;
2363   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2364
2365   gtk_adjustment_changed (tree_view->priv->vadjustment);
2366
2367   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2368   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2369     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2370   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2371     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2372                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2373   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2374     gtk_tree_view_top_row_to_dy (tree_view);
2375   else
2376     gtk_tree_view_dy_to_top_row (tree_view);
2377
2378   if (GTK_WIDGET_REALIZED (widget))
2379     {
2380       gdk_window_move_resize (widget->window,
2381                               allocation->x, allocation->y,
2382                               allocation->width, allocation->height);
2383       gdk_window_move_resize (tree_view->priv->header_window,
2384                               - (gint) tree_view->priv->hadjustment->value,
2385                               0,
2386                               MAX (tree_view->priv->width, allocation->width),
2387                               tree_view->priv->header_height);
2388       gdk_window_move_resize (tree_view->priv->bin_window,
2389                               - (gint) tree_view->priv->hadjustment->value,
2390                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2391                               MAX (tree_view->priv->width, allocation->width),
2392                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2393     }
2394
2395   gtk_tree_view_size_allocate_columns (widget);
2396
2397   if (tree_view->priv->tree == NULL)
2398     invalidate_empty_focus (tree_view);
2399
2400   if (GTK_WIDGET_REALIZED (widget))
2401     {
2402       gboolean has_expand_column = FALSE;
2403       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2404         {
2405           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2406             {
2407               has_expand_column = TRUE;
2408               break;
2409             }
2410         }
2411
2412       /* This little hack only works if we have an LTR locale, and no column has the  */
2413       if (width_changed)
2414         {
2415           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2416               ! has_expand_column)
2417             invalidate_last_column (tree_view);
2418           else
2419             gtk_widget_queue_draw (widget);
2420         }
2421     }
2422 }
2423
2424 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2425 static void
2426 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2427 {
2428   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
2429     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2430   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2431 }
2432
2433 static inline gboolean
2434 row_is_separator (GtkTreeView *tree_view,
2435                   GtkTreeIter *iter,
2436                   GtkTreePath *path)
2437 {
2438   gboolean is_separator = FALSE;
2439
2440   if (tree_view->priv->row_separator_func)
2441     {
2442       GtkTreeIter tmpiter;
2443
2444       if (iter)
2445         tmpiter = *iter;
2446       else
2447         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2448
2449       is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
2450                                                               &tmpiter,
2451                                                               tree_view->priv->row_separator_data);
2452     }
2453
2454   return is_separator;
2455 }
2456
2457 static gboolean
2458 gtk_tree_view_button_press (GtkWidget      *widget,
2459                             GdkEventButton *event)
2460 {
2461   GtkTreeView *tree_view;
2462   GList *list;
2463   GtkTreeViewColumn *column = NULL;
2464   gint i;
2465   GdkRectangle background_area;
2466   GdkRectangle cell_area;
2467   gint vertical_separator;
2468   gint horizontal_separator;
2469   gboolean path_is_selectable;
2470   gboolean rtl;
2471
2472   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
2473   g_return_val_if_fail (event != NULL, FALSE);
2474
2475   tree_view = GTK_TREE_VIEW (widget);
2476   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2477   gtk_tree_view_stop_editing (tree_view, FALSE);
2478   gtk_widget_style_get (widget,
2479                         "vertical-separator", &vertical_separator,
2480                         "horizontal-separator", &horizontal_separator,
2481                         NULL);
2482
2483
2484   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2485    * we're done handling the button press.
2486    */
2487
2488   if (event->window == tree_view->priv->bin_window)
2489     {
2490       GtkRBNode *node;
2491       GtkRBTree *tree;
2492       GtkTreePath *path;
2493       gchar *path_string;
2494       gint depth;
2495       gint new_y;
2496       gint y_offset;
2497       gint dval;
2498       gint pre_val, aft_val;
2499       GtkTreeViewColumn *column = NULL;
2500       GtkCellRenderer *focus_cell = NULL;
2501       gint column_handled_click = FALSE;
2502       gboolean row_double_click = FALSE;
2503       gboolean rtl;
2504       gboolean node_selected;
2505
2506       /* Empty tree? */
2507       if (tree_view->priv->tree == NULL)
2508         {
2509           grab_focus_and_unset_draw_keyfocus (tree_view);
2510           return TRUE;
2511         }
2512
2513       /* are we in an arrow? */
2514       if (tree_view->priv->prelight_node &&
2515           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2516           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2517         {
2518           if (event->button == 1)
2519             {
2520               gtk_grab_add (widget);
2521               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2522               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2523               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2524                                         tree_view->priv->prelight_tree,
2525                                         tree_view->priv->prelight_node,
2526                                         event->x,
2527                                         event->y);
2528             }
2529
2530           grab_focus_and_unset_draw_keyfocus (tree_view);
2531           return TRUE;
2532         }
2533
2534       /* find the node that was clicked */
2535       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2536       if (new_y < 0)
2537         new_y = 0;
2538       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2539
2540       if (node == NULL)
2541         {
2542           /* We clicked in dead space */
2543           grab_focus_and_unset_draw_keyfocus (tree_view);
2544           return TRUE;
2545         }
2546
2547       /* Get the path and the node */
2548       path = _gtk_tree_view_find_path (tree_view, tree, node);
2549       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2550
2551       if (!path_is_selectable)
2552         {
2553           gtk_tree_path_free (path);
2554           grab_focus_and_unset_draw_keyfocus (tree_view);
2555           return TRUE;
2556         }
2557
2558       depth = gtk_tree_path_get_depth (path);
2559       background_area.y = y_offset + event->y;
2560       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2561       background_area.x = 0;
2562
2563
2564       /* Let the column have a chance at selecting it. */
2565       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2566       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2567            list; list = (rtl ? list->prev : list->next))
2568         {
2569           GtkTreeViewColumn *candidate = list->data;
2570
2571           if (!candidate->visible)
2572             continue;
2573
2574           background_area.width = candidate->width;
2575           if ((background_area.x > (gint) event->x) ||
2576               (background_area.x + background_area.width <= (gint) event->x))
2577             {
2578               background_area.x += background_area.width;
2579               continue;
2580             }
2581
2582           /* we found the focus column */
2583           column = candidate;
2584           cell_area = background_area;
2585           cell_area.width -= horizontal_separator;
2586           cell_area.height -= vertical_separator;
2587           cell_area.x += horizontal_separator/2;
2588           cell_area.y += vertical_separator/2;
2589           if (gtk_tree_view_is_expander_column (tree_view, column))
2590             {
2591               if (!rtl)
2592                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2593               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2594
2595               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2596                 {
2597                   if (!rtl)
2598                     cell_area.x += depth * tree_view->priv->expander_size;
2599                   cell_area.width -= depth * tree_view->priv->expander_size;
2600                 }
2601             }
2602           break;
2603         }
2604
2605       if (column == NULL)
2606         {
2607           gtk_tree_path_free (path);
2608           grab_focus_and_unset_draw_keyfocus (tree_view);
2609           return FALSE;
2610         }
2611
2612       tree_view->priv->focus_column = column;
2613
2614       /* decide if we edit */
2615       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2616           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2617         {
2618           GtkTreePath *anchor;
2619           GtkTreeIter iter;
2620
2621           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2622           gtk_tree_view_column_cell_set_cell_data (column,
2623                                                    tree_view->priv->model,
2624                                                    &iter,
2625                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2626                                                    node->children?TRUE:FALSE);
2627
2628           if (tree_view->priv->anchor)
2629             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2630           else
2631             anchor = NULL;
2632
2633           if ((anchor && !gtk_tree_path_compare (anchor, path))
2634               || !_gtk_tree_view_column_has_editable_cell (column))
2635             {
2636               GtkCellEditable *cell_editable = NULL;
2637
2638               /* FIXME: get the right flags */
2639               guint flags = 0;
2640
2641               path_string = gtk_tree_path_to_string (path);
2642
2643               if (_gtk_tree_view_column_cell_event (column,
2644                                                     &cell_editable,
2645                                                     (GdkEvent *)event,
2646                                                     path_string,
2647                                                     &background_area,
2648                                                     &cell_area, flags))
2649                 {
2650                   if (cell_editable != NULL)
2651                     {
2652                       gint left, right;
2653                       GdkRectangle area;
2654
2655                       area = cell_area;
2656                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2657
2658                       area.x += left;
2659                       area.width -= right + left;
2660
2661                       gtk_tree_view_real_start_editing (tree_view,
2662                                                         column,
2663                                                         path,
2664                                                         cell_editable,
2665                                                         &area,
2666                                                         (GdkEvent *)event,
2667                                                         flags);
2668                       g_free (path_string);
2669                       gtk_tree_path_free (path);
2670                       gtk_tree_path_free (anchor);
2671                       return TRUE;
2672                     }
2673                   column_handled_click = TRUE;
2674                 }
2675               g_free (path_string);
2676             }
2677           if (anchor)
2678             gtk_tree_path_free (anchor);
2679         }
2680
2681       /* select */
2682       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2683       pre_val = tree_view->priv->vadjustment->value;
2684
2685       /* we only handle selection modifications on the first button press
2686        */
2687       if (event->type == GDK_BUTTON_PRESS)
2688         {
2689           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2690             tree_view->priv->ctrl_pressed = TRUE;
2691           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2692             tree_view->priv->shift_pressed = TRUE;
2693
2694           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2695           if (focus_cell)
2696             gtk_tree_view_column_focus_cell (column, focus_cell);
2697
2698           if (event->state & GDK_CONTROL_MASK)
2699             {
2700               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2701               gtk_tree_view_real_toggle_cursor_row (tree_view);
2702             }
2703           else if (event->state & GDK_SHIFT_MASK)
2704             {
2705               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2706               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2707             }
2708           else
2709             {
2710               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2711             }
2712
2713           tree_view->priv->ctrl_pressed = FALSE;
2714           tree_view->priv->shift_pressed = FALSE;
2715         }
2716
2717       /* the treeview may have been scrolled because of _set_cursor,
2718        * correct here
2719        */
2720
2721       aft_val = tree_view->priv->vadjustment->value;
2722       dval = pre_val - aft_val;
2723
2724       cell_area.y += dval;
2725       background_area.y += dval;
2726
2727       /* Save press to possibly begin a drag
2728        */
2729       if (!column_handled_click &&
2730           !tree_view->priv->in_grab &&
2731           tree_view->priv->pressed_button < 0)
2732         {
2733           tree_view->priv->pressed_button = event->button;
2734           tree_view->priv->press_start_x = event->x;
2735           tree_view->priv->press_start_y = event->y;
2736
2737           if (tree_view->priv->rubber_banding_enable
2738               && !node_selected
2739               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2740             {
2741               tree_view->priv->press_start_y += tree_view->priv->dy;
2742               tree_view->priv->rubber_band_x = event->x;
2743               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2744               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2745
2746               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2747                 tree_view->priv->rubber_band_ctrl = TRUE;
2748               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2749                 tree_view->priv->rubber_band_shift = TRUE;
2750             }
2751         }
2752
2753       /* Test if a double click happened on the same row. */
2754       if (event->button == 1)
2755         {
2756           /* We also handle triple clicks here, because a user could have done
2757            * a first click and a second double click on different rows.
2758            */
2759           if ((event->type == GDK_2BUTTON_PRESS
2760                || event->type == GDK_3BUTTON_PRESS)
2761               && tree_view->priv->last_button_press)
2762             {
2763               GtkTreePath *lsc;
2764
2765               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2766
2767               if (lsc)
2768                 {
2769                   row_double_click = !gtk_tree_path_compare (lsc, path);
2770                   gtk_tree_path_free (lsc);
2771                 }
2772             }
2773
2774           if (row_double_click)
2775             {
2776               if (tree_view->priv->last_button_press)
2777                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2778               if (tree_view->priv->last_button_press_2)
2779                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2780               tree_view->priv->last_button_press = NULL;
2781               tree_view->priv->last_button_press_2 = NULL;
2782             }
2783           else
2784             {
2785               if (tree_view->priv->last_button_press)
2786                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2787               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2788               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2789             }
2790         }
2791
2792       if (row_double_click)
2793         {
2794           gtk_grab_remove (widget);
2795           gtk_tree_view_row_activated (tree_view, path, column);
2796
2797           if (tree_view->priv->pressed_button == event->button)
2798             tree_view->priv->pressed_button = -1;
2799         }
2800
2801       gtk_tree_path_free (path);
2802
2803       /* If we activated the row through a double click we don't want to grab
2804        * focus back, as moving focus to another widget is pretty common.
2805        */
2806       if (!row_double_click)
2807         grab_focus_and_unset_draw_keyfocus (tree_view);
2808
2809       return TRUE;
2810     }
2811
2812   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2813    */
2814   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2815     {
2816       column = list->data;
2817       if (event->window == column->window &&
2818           column->resizable &&
2819           column->window)
2820         {
2821           gpointer drag_data;
2822
2823           if (event->type == GDK_2BUTTON_PRESS &&
2824               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2825             {
2826               column->use_resized_width = FALSE;
2827               _gtk_tree_view_column_autosize (tree_view, column);
2828               return TRUE;
2829             }
2830
2831           if (gdk_pointer_grab (column->window, FALSE,
2832                                 GDK_POINTER_MOTION_HINT_MASK |
2833                                 GDK_BUTTON1_MOTION_MASK |
2834                                 GDK_BUTTON_RELEASE_MASK,
2835                                 NULL, NULL, event->time))
2836             return FALSE;
2837
2838           gtk_grab_add (widget);
2839           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2840           column->resized_width = column->width;
2841
2842           /* block attached dnd signal handler */
2843           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2844           if (drag_data)
2845             g_signal_handlers_block_matched (widget,
2846                                              G_SIGNAL_MATCH_DATA,
2847                                              0, 0, NULL, NULL,
2848                                              drag_data);
2849
2850           tree_view->priv->drag_pos = i;
2851           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2852
2853           if (!GTK_WIDGET_HAS_FOCUS (widget))
2854             gtk_widget_grab_focus (widget);
2855
2856           return TRUE;
2857         }
2858     }
2859   return FALSE;
2860 }
2861
2862 /* GtkWidget::button_release_event helper */
2863 static gboolean
2864 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2865                                           GdkEventButton *event)
2866 {
2867   GtkTreeView *tree_view;
2868   gboolean rtl;
2869
2870   tree_view = GTK_TREE_VIEW (widget);
2871
2872   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2873   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2874   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2875
2876   /* Move the button back */
2877   g_object_ref (tree_view->priv->drag_column->button);
2878   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2879   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2880   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2881   g_object_unref (tree_view->priv->drag_column->button);
2882   gtk_widget_queue_resize (widget);
2883   if (tree_view->priv->drag_column->resizable)
2884     {
2885       gdk_window_raise (tree_view->priv->drag_column->window);
2886       gdk_window_show (tree_view->priv->drag_column->window);
2887     }
2888   else
2889     gdk_window_hide (tree_view->priv->drag_column->window);
2890
2891   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2892
2893   if (rtl)
2894     {
2895       if (tree_view->priv->cur_reorder &&
2896           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2897         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2898                                          tree_view->priv->cur_reorder->right_column);
2899     }
2900   else
2901     {
2902       if (tree_view->priv->cur_reorder &&
2903           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2904         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2905                                          tree_view->priv->cur_reorder->left_column);
2906     }
2907   tree_view->priv->drag_column = NULL;
2908   gdk_window_hide (tree_view->priv->drag_window);
2909
2910   g_list_foreach (tree_view->priv->column_drag_info, (GFunc) g_free, NULL);
2911   g_list_free (tree_view->priv->column_drag_info);
2912   tree_view->priv->column_drag_info = NULL;
2913   tree_view->priv->cur_reorder = NULL;
2914
2915   if (tree_view->priv->drag_highlight_window)
2916     gdk_window_hide (tree_view->priv->drag_highlight_window);
2917
2918   /* Reset our flags */
2919   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2920   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2921
2922   return TRUE;
2923 }
2924
2925 /* GtkWidget::button_release_event helper */
2926 static gboolean
2927 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2928                                             GdkEventButton *event)
2929 {
2930   GtkTreeView *tree_view;
2931   gpointer drag_data;
2932
2933   tree_view = GTK_TREE_VIEW (widget);
2934
2935   tree_view->priv->drag_pos = -1;
2936
2937   /* unblock attached dnd signal handler */
2938   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2939   if (drag_data)
2940     g_signal_handlers_unblock_matched (widget,
2941                                        G_SIGNAL_MATCH_DATA,
2942                                        0, 0, NULL, NULL,
2943                                        drag_data);
2944
2945   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2946   gtk_grab_remove (widget);
2947   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2948                               event->time);
2949   return TRUE;
2950 }
2951
2952 static gboolean
2953 gtk_tree_view_button_release (GtkWidget      *widget,
2954                               GdkEventButton *event)
2955 {
2956   GtkTreeView *tree_view;
2957
2958   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
2959   g_return_val_if_fail (event != NULL, FALSE);
2960
2961   tree_view = GTK_TREE_VIEW (widget);
2962
2963   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2964     return gtk_tree_view_button_release_drag_column (widget, event);
2965
2966   if (tree_view->priv->rubber_band_status)
2967     gtk_tree_view_stop_rubber_band (tree_view);
2968
2969   if (tree_view->priv->pressed_button == event->button)
2970     tree_view->priv->pressed_button = -1;
2971
2972   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
2973     return gtk_tree_view_button_release_column_resize (widget, event);
2974
2975   if (tree_view->priv->button_pressed_node == NULL)
2976     return FALSE;
2977
2978   if (event->button == 1)
2979     {
2980       gtk_grab_remove (widget);
2981       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
2982           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
2983         {
2984           GtkTreePath *path = NULL;
2985
2986           path = _gtk_tree_view_find_path (tree_view,
2987                                            tree_view->priv->button_pressed_tree,
2988                                            tree_view->priv->button_pressed_node);
2989           /* Actually activate the node */
2990           if (tree_view->priv->button_pressed_node->children == NULL)
2991             gtk_tree_view_real_expand_row (tree_view, path,
2992                                            tree_view->priv->button_pressed_tree,
2993                                            tree_view->priv->button_pressed_node,
2994                                            FALSE, TRUE);
2995           else
2996             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
2997                                              tree_view->priv->button_pressed_tree,
2998                                              tree_view->priv->button_pressed_node, TRUE);
2999           gtk_tree_path_free (path);
3000         }
3001
3002       tree_view->priv->button_pressed_tree = NULL;
3003       tree_view->priv->button_pressed_node = NULL;
3004     }
3005
3006   return TRUE;
3007 }
3008
3009 static gboolean
3010 gtk_tree_view_grab_broken (GtkWidget          *widget,
3011                            GdkEventGrabBroken *event)
3012 {
3013   GtkTreeView *tree_view;
3014
3015   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
3016   g_return_val_if_fail (event != NULL, FALSE);
3017
3018   tree_view = GTK_TREE_VIEW (widget);
3019
3020   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3021     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3022
3023   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3024     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3025
3026   return TRUE;
3027 }
3028
3029 #if 0
3030 static gboolean
3031 gtk_tree_view_configure (GtkWidget *widget,
3032                          GdkEventConfigure *event)
3033 {
3034   GtkTreeView *tree_view;
3035
3036   tree_view = GTK_TREE_VIEW (widget);
3037   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3038
3039   return FALSE;
3040 }
3041 #endif
3042
3043 /* GtkWidget::motion_event function set.
3044  */
3045
3046 static gboolean
3047 coords_are_over_arrow (GtkTreeView *tree_view,
3048                        GtkRBTree   *tree,
3049                        GtkRBNode   *node,
3050                        /* these are in bin window coords */
3051                        gint         x,
3052                        gint         y)
3053 {
3054   GdkRectangle arrow;
3055   gint x2;
3056
3057   if (!GTK_WIDGET_REALIZED (tree_view))
3058     return FALSE;
3059
3060   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3061     return FALSE;
3062
3063   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3064
3065   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3066
3067   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3068
3069   arrow.width = x2 - arrow.x;
3070
3071   return (x >= arrow.x &&
3072           x < (arrow.x + arrow.width) &&
3073           y >= arrow.y &&
3074           y < (arrow.y + arrow.height));
3075 }
3076
3077 static gboolean
3078 auto_expand_timeout (gpointer data)
3079 {
3080   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3081   GtkTreePath *path;
3082
3083   if (tree_view->priv->prelight_node)
3084     {
3085       path = _gtk_tree_view_find_path (tree_view,
3086                                        tree_view->priv->prelight_tree,
3087                                        tree_view->priv->prelight_node);
3088
3089       if (tree_view->priv->prelight_node->children)
3090         gtk_tree_view_collapse_row (tree_view, path);
3091       else
3092         gtk_tree_view_expand_row (tree_view, path, FALSE);
3093
3094       gtk_tree_path_free (path);
3095     }
3096
3097   tree_view->priv->auto_expand_timeout = 0;
3098
3099   return FALSE;
3100 }
3101
3102 static void
3103 remove_auto_expand_timeout (GtkTreeView *tree_view)
3104 {
3105   if (tree_view->priv->auto_expand_timeout != 0)
3106     {
3107       g_source_remove (tree_view->priv->auto_expand_timeout);
3108       tree_view->priv->auto_expand_timeout = 0;
3109     }
3110 }
3111
3112 static void
3113 do_prelight (GtkTreeView *tree_view,
3114              GtkRBTree   *tree,
3115              GtkRBNode   *node,
3116              /* these are in bin_window coords */
3117              gint         x,
3118              gint         y)
3119 {
3120   if (tree_view->priv->prelight_tree == tree &&
3121       tree_view->priv->prelight_node == node)
3122     {
3123       /*  We are still on the same node,
3124           but we might need to take care of the arrow  */
3125
3126       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3127         {
3128           gboolean over_arrow;
3129           gboolean flag_set;
3130
3131           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3132           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3133                                              GTK_TREE_VIEW_ARROW_PRELIT);
3134
3135           if (over_arrow != flag_set)
3136             {
3137               if (over_arrow)
3138                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3139                                         GTK_TREE_VIEW_ARROW_PRELIT);
3140               else
3141                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3142                                           GTK_TREE_VIEW_ARROW_PRELIT);
3143
3144               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3145             }
3146         }
3147
3148       return;
3149     }
3150
3151   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3152     {
3153       /*  Unprelight the old node and arrow  */
3154
3155       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3156                              GTK_RBNODE_IS_PRELIT);
3157
3158       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3159           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3160         {
3161           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3162
3163           gtk_tree_view_draw_arrow (tree_view,
3164                                     tree_view->priv->prelight_tree,
3165                                     tree_view->priv->prelight_node,
3166                                     x,
3167                                     y);
3168         }
3169
3170       _gtk_tree_view_queue_draw_node (tree_view,
3171                                       tree_view->priv->prelight_tree,
3172                                       tree_view->priv->prelight_node,
3173                                       NULL);
3174     }
3175
3176
3177   if (tree_view->priv->hover_expand)
3178     remove_auto_expand_timeout (tree_view);
3179
3180   /*  Set the new prelight values  */
3181   tree_view->priv->prelight_node = node;
3182   tree_view->priv->prelight_tree = tree;
3183
3184   if (!node || !tree)
3185     return;
3186
3187   /*  Prelight the new node and arrow  */
3188
3189   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3190       && coords_are_over_arrow (tree_view, tree, node, x, y))
3191     {
3192       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3193
3194       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3195     }
3196
3197   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3198
3199   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3200
3201   if (tree_view->priv->hover_expand)
3202     {
3203       tree_view->priv->auto_expand_timeout =
3204         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3205     }
3206 }
3207
3208 static void
3209 prelight_or_select (GtkTreeView *tree_view,
3210                     GtkRBTree   *tree,
3211                     GtkRBNode   *node,
3212                     /* these are in bin_window coords */
3213                     gint         x,
3214                     gint         y)
3215 {
3216   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3217
3218   if (tree_view->priv->hover_selection &&
3219       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3220       !(tree_view->priv->edited_column &&
3221         tree_view->priv->edited_column->editable_widget))
3222     {
3223       if (node)
3224         {
3225           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3226             {
3227               GtkTreePath *path;
3228
3229               path = _gtk_tree_view_find_path (tree_view, tree, node);
3230               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3231               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3232                 {
3233                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3234                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3235                 }
3236               gtk_tree_path_free (path);
3237             }
3238         }
3239
3240       else if (mode == GTK_SELECTION_SINGLE)
3241         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3242     }
3243
3244     do_prelight (tree_view, tree, node, x, y);
3245 }
3246
3247 static void
3248 ensure_unprelighted (GtkTreeView *tree_view)
3249 {
3250   do_prelight (tree_view,
3251                NULL, NULL,
3252                -1000, -1000); /* coords not possibly over an arrow */
3253
3254   g_assert (tree_view->priv->prelight_node == NULL);
3255 }
3256
3257
3258
3259
3260 /* Our motion arrow is either a box (in the case of the original spot)
3261  * or an arrow.  It is expander_size wide.
3262  */
3263 /*
3264  * 11111111111111
3265  * 01111111111110
3266  * 00111111111100
3267  * 00011111111000
3268  * 00001111110000
3269  * 00000111100000
3270  * 00000111100000
3271  * 00000111100000
3272  * ~ ~ ~ ~ ~ ~ ~
3273  * 00000111100000
3274  * 00000111100000
3275  * 00000111100000
3276  * 00001111110000
3277  * 00011111111000
3278  * 00111111111100
3279  * 01111111111110
3280  * 11111111111111
3281  */
3282
3283 static void
3284 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3285 {
3286   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3287   GtkWidget *widget = GTK_WIDGET (tree_view);
3288   GdkBitmap *mask = NULL;
3289   gint x;
3290   gint y;
3291   gint width;
3292   gint height;
3293   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3294   GdkWindowAttr attributes;
3295   guint attributes_mask;
3296
3297   if (!reorder ||
3298       reorder->left_column == tree_view->priv->drag_column ||
3299       reorder->right_column == tree_view->priv->drag_column)
3300     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3301   else if (reorder->left_column || reorder->right_column)
3302     {
3303       GdkRectangle visible_rect;
3304       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3305       if (reorder->left_column)
3306         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3307       else
3308         x = reorder->right_column->button->allocation.x;
3309
3310       if (x < visible_rect.x)
3311         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3312       else if (x > visible_rect.x + visible_rect.width)
3313         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3314       else
3315         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3316     }
3317
3318   /* We want to draw the rectangle over the initial location. */
3319   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3320     {
3321       GdkGC *gc;
3322       GdkColor col;
3323
3324       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3325         {
3326           if (tree_view->priv->drag_highlight_window)
3327             {
3328               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3329                                         NULL);
3330               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3331             }
3332
3333           attributes.window_type = GDK_WINDOW_CHILD;
3334           attributes.wclass = GDK_INPUT_OUTPUT;
3335           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3336           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3337           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3338           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3339           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3340           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3341
3342           width = tree_view->priv->drag_column->button->allocation.width;
3343           height = tree_view->priv->drag_column->button->allocation.height;
3344           gdk_window_move_resize (tree_view->priv->drag_highlight_window,
3345                                   tree_view->priv->drag_column_x, 0, width, height);
3346
3347           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3348           gc = gdk_gc_new (mask);
3349           col.pixel = 1;
3350           gdk_gc_set_foreground (gc, &col);
3351           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3352           col.pixel = 0;
3353           gdk_gc_set_foreground(gc, &col);
3354           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3355           g_object_unref (gc);
3356
3357           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3358                                          mask, 0, 0);
3359           if (mask) g_object_unref (mask);
3360           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3361         }
3362     }
3363   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3364     {
3365       gint i, j = 1;
3366       GdkGC *gc;
3367       GdkColor col;
3368
3369       width = tree_view->priv->expander_size;
3370
3371       /* Get x, y, width, height of arrow */
3372       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3373       if (reorder->left_column)
3374         {
3375           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3376           height = reorder->left_column->button->allocation.height;
3377         }
3378       else
3379         {
3380           x += reorder->right_column->button->allocation.x - width/2;
3381           height = reorder->right_column->button->allocation.height;
3382         }
3383       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3384       height += tree_view->priv->expander_size;
3385
3386       /* Create the new window */
3387       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3388         {
3389           if (tree_view->priv->drag_highlight_window)
3390             {
3391               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3392                                         NULL);
3393               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3394             }
3395
3396           attributes.window_type = GDK_WINDOW_TEMP;
3397           attributes.wclass = GDK_INPUT_OUTPUT;
3398           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3399           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3400           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3401           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3402           attributes.width = width;
3403           attributes.height = height;
3404           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3405                                                                    &attributes, attributes_mask);
3406           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3407
3408           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3409           gc = gdk_gc_new (mask);
3410           col.pixel = 1;
3411           gdk_gc_set_foreground (gc, &col);
3412           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3413
3414           /* Draw the 2 arrows as per above */
3415           col.pixel = 0;
3416           gdk_gc_set_foreground (gc, &col);
3417           for (i = 0; i < width; i ++)
3418             {
3419               if (i == (width/2 - 1))
3420                 continue;
3421               gdk_draw_line (mask, gc, i, j, i, height - j);
3422               if (i < (width/2 - 1))
3423                 j++;
3424               else
3425                 j--;
3426             }
3427           g_object_unref (gc);
3428           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3429                                          mask, 0, 0);
3430           if (mask) g_object_unref (mask);
3431         }
3432
3433       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3434       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3435     }
3436   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3437            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3438     {
3439       gint i, j = 1;
3440       GdkGC *gc;
3441       GdkColor col;
3442
3443       width = tree_view->priv->expander_size;
3444
3445       /* Get x, y, width, height of arrow */
3446       width = width/2; /* remember, the arrow only takes half the available width */
3447       gdk_window_get_origin (widget->window, &x, &y);
3448       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3449         x += widget->allocation.width - width;
3450
3451       if (reorder->left_column)
3452         height = reorder->left_column->button->allocation.height;
3453       else
3454         height = reorder->right_column->button->allocation.height;
3455
3456       y -= tree_view->priv->expander_size;
3457       height += 2*tree_view->priv->expander_size;
3458
3459       /* Create the new window */
3460       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3461           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3462         {
3463           if (tree_view->priv->drag_highlight_window)
3464             {
3465               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3466                                         NULL);
3467               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3468             }
3469
3470           attributes.window_type = GDK_WINDOW_TEMP;
3471           attributes.wclass = GDK_INPUT_OUTPUT;
3472           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3473           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3474           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3475           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3476           attributes.width = width;
3477           attributes.height = height;
3478           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3479           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3480
3481           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3482           gc = gdk_gc_new (mask);
3483           col.pixel = 1;
3484           gdk_gc_set_foreground (gc, &col);
3485           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3486
3487           /* Draw the 2 arrows as per above */
3488           col.pixel = 0;
3489           gdk_gc_set_foreground (gc, &col);
3490           j = tree_view->priv->expander_size;
3491           for (i = 0; i < width; i ++)
3492             {
3493               gint k;
3494               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3495                 k = width - i - 1;
3496               else
3497                 k = i;
3498               gdk_draw_line (mask, gc, k, j, k, height - j);
3499               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3500               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3501               j--;
3502             }
3503           g_object_unref (gc);
3504           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3505                                          mask, 0, 0);
3506           if (mask) g_object_unref (mask);
3507         }
3508
3509       tree_view->priv->drag_column_window_state = arrow_type;
3510       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3511    }
3512   else
3513     {
3514       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3515       gdk_window_hide (tree_view->priv->drag_highlight_window);
3516       return;
3517     }
3518
3519   gdk_window_show (tree_view->priv->drag_highlight_window);
3520   gdk_window_raise (tree_view->priv->drag_highlight_window);
3521 }
3522
3523 static gboolean
3524 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3525                                     GdkEventMotion *event)
3526 {
3527   gint x;
3528   gint new_width;
3529   GtkTreeViewColumn *column;
3530   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3531
3532   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3533
3534   if (event->is_hint || event->window != widget->window)
3535     gtk_widget_get_pointer (widget, &x, NULL);
3536   else
3537     x = event->x;
3538
3539   if (tree_view->priv->hadjustment)
3540     x += tree_view->priv->hadjustment->value;
3541
3542   new_width = gtk_tree_view_new_column_width (tree_view,
3543                                               tree_view->priv->drag_pos, &x);
3544   if (x != tree_view->priv->x_drag &&
3545       (new_width != column->fixed_width))
3546     {
3547       column->use_resized_width = TRUE;
3548       column->resized_width = new_width;
3549       gtk_widget_queue_resize (widget);
3550     }
3551
3552   return FALSE;
3553 }
3554
3555
3556 static void
3557 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3558 {
3559   GtkTreeViewColumnReorder *reorder = NULL;
3560   GList *list;
3561   gint mouse_x;
3562
3563   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3564   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3565     {
3566       reorder = (GtkTreeViewColumnReorder *) list->data;
3567       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3568         break;
3569       reorder = NULL;
3570     }
3571
3572   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3573       return;*/
3574
3575   tree_view->priv->cur_reorder = reorder;
3576   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3577 }
3578
3579 static void
3580 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3581 {
3582   GdkRectangle visible_rect;
3583   gint y;
3584   gint offset;
3585   gfloat value;
3586
3587   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3588   y += tree_view->priv->dy;
3589
3590   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3591
3592   /* see if we are near the edge. */
3593   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3594   if (offset > 0)
3595     {
3596       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3597       if (offset < 0)
3598         return;
3599     }
3600
3601   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3602                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3603   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3604 }
3605
3606 static gboolean
3607 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3608 {
3609   GdkRectangle visible_rect;
3610   gint x;
3611   gint offset;
3612   gfloat value;
3613
3614   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3615
3616   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3617
3618   /* See if we are near the edge. */
3619   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3620   if (offset > 0)
3621     {
3622       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3623       if (offset < 0)
3624         return TRUE;
3625     }
3626   offset = offset/3;
3627
3628   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3629                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3630   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3631
3632   return TRUE;
3633
3634 }
3635
3636 static gboolean
3637 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3638                                   GdkEventMotion *event)
3639 {
3640   GtkTreeView *tree_view = (GtkTreeView *) widget;
3641   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3642   gint x, y;
3643
3644   /* Sanity Check */
3645   if ((column == NULL) ||
3646       (event->window != tree_view->priv->drag_window))
3647     return FALSE;
3648
3649   /* Handle moving the header */
3650   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3651   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3652              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3653   gdk_window_move (tree_view->priv->drag_window, x, y);
3654
3655   /* autoscroll, if needed */
3656   gtk_tree_view_horizontal_autoscroll (tree_view);
3657   /* Update the current reorder position and arrow; */
3658   gtk_tree_view_update_current_reorder (tree_view);
3659
3660   return TRUE;
3661 }
3662
3663 static void
3664 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3665 {
3666   remove_scroll_timeout (tree_view);
3667   gtk_grab_remove (GTK_WIDGET (tree_view));
3668
3669   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3670
3671   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3672     {
3673       GtkTreePath *tmp_path;
3674
3675       /* The anchor path should be set to the start path */
3676       tmp_path = _gtk_tree_view_find_path (tree_view,
3677                                            tree_view->priv->rubber_band_start_tree,
3678                                            tree_view->priv->rubber_band_start_node);
3679
3680       if (tree_view->priv->anchor)
3681         gtk_tree_row_reference_free (tree_view->priv->anchor);
3682
3683       tree_view->priv->anchor =
3684         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3685                                           tree_view->priv->model,
3686                                           tmp_path);
3687
3688       gtk_tree_path_free (tmp_path);
3689
3690       /* ... and the cursor to the end path */
3691       tmp_path = _gtk_tree_view_find_path (tree_view,
3692                                            tree_view->priv->rubber_band_end_tree,
3693                                            tree_view->priv->rubber_band_end_node);
3694       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3695       gtk_tree_path_free (tmp_path);
3696
3697       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3698     }
3699
3700   /* Clear status variables */
3701   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3702   tree_view->priv->rubber_band_shift = 0;
3703   tree_view->priv->rubber_band_ctrl = 0;
3704
3705   tree_view->priv->rubber_band_start_node = NULL;
3706   tree_view->priv->rubber_band_start_tree = NULL;
3707   tree_view->priv->rubber_band_end_node = NULL;
3708   tree_view->priv->rubber_band_end_tree = NULL;
3709 }
3710
3711 static void
3712 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3713                                                  GtkRBTree   *start_tree,
3714                                                  GtkRBNode   *start_node,
3715                                                  GtkRBTree   *end_tree,
3716                                                  GtkRBNode   *end_node,
3717                                                  gboolean     select,
3718                                                  gboolean     skip_start,
3719                                                  gboolean     skip_end)
3720 {
3721   if (start_node == end_node)
3722     return;
3723
3724   /* We skip the first node and jump inside the loop */
3725   if (skip_start)
3726     goto skip_first;
3727
3728   do
3729     {
3730       /* Small optimization by assuming insensitive nodes are never
3731        * selected.
3732        */
3733       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3734         {
3735           GtkTreePath *path;
3736           gboolean selectable;
3737
3738           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3739           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3740           gtk_tree_path_free (path);
3741
3742           if (!selectable)
3743             goto node_not_selectable;
3744         }
3745
3746       if (select)
3747         {
3748           if (tree_view->priv->rubber_band_shift)
3749             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3750           else if (tree_view->priv->rubber_band_ctrl)
3751             {
3752               /* Toggle the selection state */
3753               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3754                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3755               else
3756                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3757             }
3758           else
3759             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3760         }
3761       else
3762         {
3763           /* Mirror the above */
3764           if (tree_view->priv->rubber_band_shift)
3765             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3766           else if (tree_view->priv->rubber_band_ctrl)
3767             {
3768               /* Toggle the selection state */
3769               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3770                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3771               else
3772                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3773             }
3774           else
3775             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3776         }
3777
3778       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3779
3780 node_not_selectable:
3781       if (start_node == end_node)
3782         break;
3783
3784 skip_first:
3785
3786       if (start_node->children)
3787         {
3788           start_tree = start_node->children;
3789           start_node = start_tree->root;
3790           while (start_node->left != start_tree->nil)
3791             start_node = start_node->left;
3792         }
3793       else
3794         {
3795           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3796
3797           if (!start_tree)
3798             /* Ran out of tree */
3799             break;
3800         }
3801
3802       if (skip_end && start_node == end_node)
3803         break;
3804     }
3805   while (TRUE);
3806 }
3807
3808 static void
3809 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3810 {
3811   GtkRBTree *start_tree, *end_tree;
3812   GtkRBNode *start_node, *end_node;
3813
3814   _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);
3815   _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);
3816
3817   /* Handle the start area first */
3818   if (!tree_view->priv->rubber_band_start_node)
3819     {
3820       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3821                                                        start_tree,
3822                                                        start_node,
3823                                                        end_tree,
3824                                                        end_node,
3825                                                        TRUE,
3826                                                        FALSE,
3827                                                        FALSE);
3828     }
3829   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3830            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3831     {
3832       /* New node is above the old one; selection became bigger */
3833       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3834                                                        start_tree,
3835                                                        start_node,
3836                                                        tree_view->priv->rubber_band_start_tree,
3837                                                        tree_view->priv->rubber_band_start_node,
3838                                                        TRUE,
3839                                                        FALSE,
3840                                                        TRUE);
3841     }
3842   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3843            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3844     {
3845       /* New node is below the old one; selection became smaller */
3846       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3847                                                        tree_view->priv->rubber_band_start_tree,
3848                                                        tree_view->priv->rubber_band_start_node,
3849                                                        start_tree,
3850                                                        start_node,
3851                                                        FALSE,
3852                                                        FALSE,
3853                                                        TRUE);
3854     }
3855
3856   tree_view->priv->rubber_band_start_tree = start_tree;
3857   tree_view->priv->rubber_band_start_node = start_node;
3858
3859   /* Next, handle the end area */
3860   if (!tree_view->priv->rubber_band_end_node)
3861     {
3862       /* In the event this happens, start_node was also NULL; this case is
3863        * handled above.
3864        */
3865     }
3866   else if (!end_node)
3867     {
3868       /* Find the last node in the tree */
3869       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3870                                &end_tree, &end_node);
3871
3872       /* Selection reached end of the tree */
3873       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3874                                                        tree_view->priv->rubber_band_end_tree,
3875                                                        tree_view->priv->rubber_band_end_node,
3876                                                        end_tree,
3877                                                        end_node,
3878                                                        TRUE,
3879                                                        TRUE,
3880                                                        FALSE);
3881     }
3882   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3883            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3884     {
3885       /* New node is below the old one; selection became bigger */
3886       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3887                                                        tree_view->priv->rubber_band_end_tree,
3888                                                        tree_view->priv->rubber_band_end_node,
3889                                                        end_tree,
3890                                                        end_node,
3891                                                        TRUE,
3892                                                        TRUE,
3893                                                        FALSE);
3894     }
3895   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3896            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3897     {
3898       /* New node is above the old one; selection became smaller */
3899       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3900                                                        end_tree,
3901                                                        end_node,
3902                                                        tree_view->priv->rubber_band_end_tree,
3903                                                        tree_view->priv->rubber_band_end_node,
3904                                                        FALSE,
3905                                                        TRUE,
3906                                                        FALSE);
3907     }
3908
3909   tree_view->priv->rubber_band_end_tree = end_tree;
3910   tree_view->priv->rubber_band_end_node = end_node;
3911 }
3912
3913 static void
3914 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3915 {
3916   gint x, y;
3917   GdkRectangle old_area;
3918   GdkRectangle new_area;
3919   GdkRectangle common;
3920   GdkRegion *invalid_region;
3921
3922   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3923   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3924   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3925   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3926
3927   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3928
3929   x = MAX (x, 0);
3930   y = MAX (y, 0) + tree_view->priv->dy;
3931
3932   new_area.x = MIN (tree_view->priv->press_start_x, x);
3933   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3934   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3935   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3936
3937   invalid_region = gdk_region_rectangle (&old_area);
3938   gdk_region_union_with_rect (invalid_region, &new_area);
3939
3940   gdk_rectangle_intersect (&old_area, &new_area, &common);
3941   if (common.width > 2 && common.height > 2)
3942     {
3943       GdkRegion *common_region;
3944
3945       /* make sure the border is invalidated */
3946       common.x += 1;
3947       common.y += 1;
3948       common.width -= 2;
3949       common.height -= 2;
3950
3951       common_region = gdk_region_rectangle (&common);
3952
3953       gdk_region_subtract (invalid_region, common_region);
3954       gdk_region_destroy (common_region);
3955     }
3956
3957   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3958
3959   gdk_region_destroy (invalid_region);
3960
3961   tree_view->priv->rubber_band_x = x;
3962   tree_view->priv->rubber_band_y = y;
3963
3964   gtk_tree_view_update_rubber_band_selection (tree_view);
3965 }
3966
3967 static void
3968 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
3969                                 GdkRectangle *area)
3970 {
3971   cairo_t *cr;
3972   GdkRectangle rect;
3973   GdkRectangle rubber_rect;
3974
3975   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3976   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3977   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
3978   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
3979
3980   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
3981     return;
3982
3983   cr = gdk_cairo_create (tree_view->priv->bin_window);
3984   cairo_set_line_width (cr, 1.0);
3985
3986   cairo_set_source_rgba (cr,
3987                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3988                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3989                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
3990                          .25);
3991
3992   gdk_cairo_rectangle (cr, &rect);
3993   cairo_clip (cr);
3994   cairo_paint (cr);
3995
3996   cairo_set_source_rgb (cr,
3997                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3998                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3999                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4000
4001   cairo_rectangle (cr,
4002                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4003                    rubber_rect.width - 1, rubber_rect.height - 1);
4004   cairo_stroke (cr);
4005
4006   cairo_destroy (cr);
4007 }
4008
4009 static gboolean
4010 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4011                                  GdkEventMotion *event)
4012 {
4013   GtkTreeView *tree_view;
4014   GtkRBTree *tree;
4015   GtkRBNode *node;
4016   gint new_y;
4017
4018   tree_view = (GtkTreeView *) widget;
4019
4020   if (tree_view->priv->tree == NULL)
4021     return FALSE;
4022
4023   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4024     {
4025       gtk_grab_add (GTK_WIDGET (tree_view));
4026       gtk_tree_view_update_rubber_band (tree_view);
4027
4028       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4029     }
4030   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4031     {
4032       gtk_tree_view_update_rubber_band (tree_view);
4033
4034       add_scroll_timeout (tree_view);
4035     }
4036
4037   /* only check for an initiated drag when a button is pressed */
4038   if (tree_view->priv->pressed_button >= 0
4039       && !tree_view->priv->rubber_band_status)
4040     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4041
4042   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4043   if (new_y < 0)
4044     new_y = 0;
4045
4046   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4047
4048   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4049   if ((tree_view->priv->button_pressed_node != NULL) &&
4050       (tree_view->priv->button_pressed_node != node))
4051     node = NULL;
4052
4053   prelight_or_select (tree_view, tree, node, event->x, event->y);
4054
4055   return TRUE;
4056 }
4057
4058 static gboolean
4059 gtk_tree_view_motion (GtkWidget      *widget,
4060                       GdkEventMotion *event)
4061 {
4062   GtkTreeView *tree_view;
4063
4064   tree_view = (GtkTreeView *) widget;
4065
4066   /* Resizing a column */
4067   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4068     return gtk_tree_view_motion_resize_column (widget, event);
4069
4070   /* Drag column */
4071   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4072     return gtk_tree_view_motion_drag_column (widget, event);
4073
4074   /* Sanity check it */
4075   if (event->window == tree_view->priv->bin_window)
4076     return gtk_tree_view_motion_bin_window (widget, event);
4077
4078   return FALSE;
4079 }
4080
4081 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4082  * the tree is empty.
4083  */
4084 static void
4085 invalidate_empty_focus (GtkTreeView *tree_view)
4086 {
4087   GdkRectangle area;
4088
4089   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4090     return;
4091
4092   area.x = 0;
4093   area.y = 0;
4094   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4095   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4096 }
4097
4098 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4099  * is empty.
4100  */
4101 static void
4102 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4103 {
4104   gint w, h;
4105
4106   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4107     return;
4108
4109   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4110
4111   w -= 2;
4112   h -= 2;
4113
4114   if (w > 0 && h > 0)
4115     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4116                      tree_view->priv->bin_window,
4117                      GTK_WIDGET_STATE (tree_view),
4118                      clip_area,
4119                      GTK_WIDGET (tree_view),
4120                      NULL,
4121                      1, 1, w, h);
4122 }
4123
4124 static void
4125 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4126                                GdkEventExpose *event,
4127                                gint            n_visible_columns)
4128 {
4129   GList *list = tree_view->priv->columns;
4130   gint i = 0;
4131   gint current_x = 0;
4132
4133   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4134       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4135     return;
4136
4137   /* Only draw the lines for visible rows and columns */
4138   for (list = tree_view->priv->columns; list; list = list->next, i++)
4139     {
4140       GtkTreeViewColumn *column = list->data;
4141
4142       /* We don't want a line for the last column */
4143       if (i == n_visible_columns - 1)
4144         break;
4145
4146       if (! column->visible)
4147         continue;
4148
4149       current_x += column->width;
4150
4151       gdk_draw_line (event->window,
4152                      tree_view->priv->grid_line_gc,
4153                      current_x - 1, 0,
4154                      current_x - 1, tree_view->priv->height);
4155     }
4156 }
4157
4158 /* Warning: Very scary function.
4159  * Modify at your own risk
4160  *
4161  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4162  * FIXME: It's not...
4163  */
4164 static gboolean
4165 gtk_tree_view_bin_expose (GtkWidget      *widget,
4166                           GdkEventExpose *event)
4167 {
4168   GtkTreeView *tree_view;
4169   GtkTreePath *path;
4170   GtkRBTree *tree;
4171   GList *list;
4172   GtkRBNode *node;
4173   GtkRBNode *cursor = NULL;
4174   GtkRBTree *cursor_tree = NULL;
4175   GtkRBNode *drag_highlight = NULL;
4176   GtkRBTree *drag_highlight_tree = NULL;
4177   GtkTreeIter iter;
4178   gint new_y;
4179   gint y_offset, cell_offset;
4180   gint max_height;
4181   gint depth;
4182   GdkRectangle background_area;
4183   GdkRectangle cell_area;
4184   guint flags;
4185   gint highlight_x;
4186   gint expander_cell_width;
4187   gint bin_window_width;
4188   gint bin_window_height;
4189   GtkTreePath *cursor_path;
4190   GtkTreePath *drag_dest_path;
4191   GList *first_column, *last_column;
4192   gint vertical_separator;
4193   gint horizontal_separator;
4194   gint focus_line_width;
4195   gboolean allow_rules;
4196   gboolean has_special_cell;
4197   gboolean rtl;
4198   gint n_visible_columns;
4199   gint pointer_x, pointer_y;
4200   gint grid_line_width;
4201   gboolean got_pointer = FALSE;
4202   gboolean row_ending_details;
4203   gboolean draw_vgrid_lines, draw_hgrid_lines;
4204
4205   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
4206
4207   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4208
4209   tree_view = GTK_TREE_VIEW (widget);
4210
4211   gtk_widget_style_get (widget,
4212                         "horizontal-separator", &horizontal_separator,
4213                         "vertical-separator", &vertical_separator,
4214                         "allow-rules", &allow_rules,
4215                         "focus-line-width", &focus_line_width,
4216                         "row-ending-details", &row_ending_details,
4217                         NULL);
4218
4219   if (tree_view->priv->tree == NULL)
4220     {
4221       draw_empty_focus (tree_view, &event->area);
4222       return TRUE;
4223     }
4224
4225   /* clip event->area to the visible area */
4226   if (event->area.height < 0)
4227     return TRUE;
4228
4229   validate_visible_area (tree_view);
4230
4231   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4232
4233   if (new_y < 0)
4234     new_y = 0;
4235   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4236   gdk_drawable_get_size (tree_view->priv->bin_window,
4237                          &bin_window_width, &bin_window_height);
4238
4239   if (tree_view->priv->height < bin_window_height)
4240     {
4241       gtk_paint_flat_box (widget->style,
4242                           event->window,
4243                           widget->state,
4244                           GTK_SHADOW_NONE,
4245                           &event->area,
4246                           widget,
4247                           "cell_even",
4248                           0, tree_view->priv->height,
4249                           bin_window_width,
4250                           bin_window_height - tree_view->priv->height);
4251     }
4252
4253   if (node == NULL)
4254     return TRUE;
4255
4256   /* find the path for the node */
4257   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4258                                    tree,
4259                                    node);
4260   gtk_tree_model_get_iter (tree_view->priv->model,
4261                            &iter,
4262                            path);
4263   depth = gtk_tree_path_get_depth (path);
4264   gtk_tree_path_free (path);
4265
4266   cursor_path = NULL;
4267   drag_dest_path = NULL;
4268
4269   if (tree_view->priv->cursor)
4270     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4271
4272   if (cursor_path)
4273     _gtk_tree_view_find_node (tree_view, cursor_path,
4274                               &cursor_tree, &cursor);
4275
4276   if (tree_view->priv->drag_dest_row)
4277     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4278
4279   if (drag_dest_path)
4280     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4281                               &drag_highlight_tree, &drag_highlight);
4282
4283   draw_vgrid_lines =
4284     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4285     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4286   draw_hgrid_lines =
4287     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4288     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4289
4290   if (draw_vgrid_lines || draw_hgrid_lines)
4291     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4292
4293   n_visible_columns = 0;
4294   for (list = tree_view->priv->columns; list; list = list->next)
4295     {
4296       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4297         continue;
4298       n_visible_columns ++;
4299     }
4300
4301   /* Find the last column */
4302   for (last_column = g_list_last (tree_view->priv->columns);
4303        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4304        last_column = last_column->prev)
4305     ;
4306
4307   /* and the first */
4308   for (first_column = g_list_first (tree_view->priv->columns);
4309        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4310        first_column = first_column->next)
4311     ;
4312
4313   /* Actually process the expose event.  To do this, we want to
4314    * start at the first node of the event, and walk the tree in
4315    * order, drawing each successive node.
4316    */
4317
4318   do
4319     {
4320       gboolean parity;
4321       gboolean is_separator = FALSE;
4322       gboolean is_first = FALSE;
4323       gboolean is_last = FALSE;
4324
4325       is_separator = row_is_separator (tree_view, &iter, NULL);
4326
4327       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4328
4329       cell_offset = 0;
4330       highlight_x = 0; /* should match x coord of first cell */
4331       expander_cell_width = 0;
4332
4333       background_area.y = y_offset + event->area.y;
4334       background_area.height = max_height;
4335
4336       flags = 0;
4337
4338       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4339         flags |= GTK_CELL_RENDERER_PRELIT;
4340
4341       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4342         flags |= GTK_CELL_RENDERER_SELECTED;
4343
4344       parity = _gtk_rbtree_node_find_parity (tree, node);
4345
4346       /* we *need* to set cell data on all cells before the call
4347        * to _has_special_cell, else _has_special_cell() does not
4348        * return a correct value.
4349        */
4350       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4351            list;
4352            list = (rtl ? list->prev : list->next))
4353         {
4354           GtkTreeViewColumn *column = list->data;
4355           gtk_tree_view_column_cell_set_cell_data (column,
4356                                                    tree_view->priv->model,
4357                                                    &iter,
4358                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4359                                                    node->children?TRUE:FALSE);
4360         }
4361
4362       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4363
4364       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4365            list;
4366            list = (rtl ? list->prev : list->next))
4367         {
4368           GtkTreeViewColumn *column = list->data;
4369           const gchar *detail = NULL;
4370           GtkStateType state;
4371
4372           if (!column->visible)
4373             continue;
4374
4375           if (cell_offset > event->area.x + event->area.width ||
4376               cell_offset + column->width < event->area.x)
4377             {
4378               cell_offset += column->width;
4379               continue;
4380             }
4381
4382           if (column->show_sort_indicator)
4383             flags |= GTK_CELL_RENDERER_SORTED;
4384           else
4385             flags &= ~GTK_CELL_RENDERER_SORTED;
4386
4387           if (cursor == node)
4388             flags |= GTK_CELL_RENDERER_FOCUSED;
4389           else
4390             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4391
4392           background_area.x = cell_offset;
4393           background_area.width = column->width;
4394
4395           cell_area = background_area;
4396           cell_area.y += vertical_separator / 2;
4397           cell_area.x += horizontal_separator / 2;
4398           cell_area.height -= vertical_separator;
4399           cell_area.width -= horizontal_separator;
4400
4401           if (draw_vgrid_lines)
4402             {
4403               if (list == first_column)
4404                 {
4405                   cell_area.width -= grid_line_width / 2;
4406                 }
4407               else if (list == last_column)
4408                 {
4409                   cell_area.x += grid_line_width / 2;
4410                   cell_area.width -= grid_line_width / 2;
4411                 }
4412               else
4413                 {
4414                   cell_area.x += grid_line_width / 2;
4415                   cell_area.width -= grid_line_width;
4416                 }
4417             }
4418
4419           if (draw_hgrid_lines)
4420             {
4421               cell_area.y += grid_line_width / 2;
4422               cell_area.height -= grid_line_width;
4423             }
4424
4425           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4426             {
4427               cell_offset += column->width;
4428               continue;
4429             }
4430
4431           gtk_tree_view_column_cell_set_cell_data (column,
4432                                                    tree_view->priv->model,
4433                                                    &iter,
4434                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4435                                                    node->children?TRUE:FALSE);
4436
4437           /* Select the detail for drawing the cell.  relevant
4438            * factors are parity, sortedness, and whether to
4439            * display rules.
4440            */
4441           if (allow_rules && tree_view->priv->has_rules)
4442             {
4443               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4444                   n_visible_columns >= 3)
4445                 {
4446                   if (parity)
4447                     detail = "cell_odd_ruled_sorted";
4448                   else
4449                     detail = "cell_even_ruled_sorted";
4450                 }
4451               else
4452                 {
4453                   if (parity)
4454                     detail = "cell_odd_ruled";
4455                   else
4456                     detail = "cell_even_ruled";
4457                 }
4458             }
4459           else
4460             {
4461               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4462                   n_visible_columns >= 3)
4463                 {
4464                   if (parity)
4465                     detail = "cell_odd_sorted";
4466                   else
4467                     detail = "cell_even_sorted";
4468                 }
4469               else
4470                 {
4471                   if (parity)
4472                     detail = "cell_odd";
4473                   else
4474                     detail = "cell_even";
4475                 }
4476             }
4477
4478           g_assert (detail);
4479
4480           if (widget->state == GTK_STATE_INSENSITIVE)
4481             state = GTK_STATE_INSENSITIVE;
4482           else if (flags & GTK_CELL_RENDERER_SELECTED)
4483             state = GTK_STATE_SELECTED;
4484           else
4485             state = GTK_STATE_NORMAL;
4486
4487           /* Draw background */
4488           if (row_ending_details)
4489             {
4490               char new_detail[128];
4491
4492               is_first = (rtl ? !list->next : !list->prev);
4493               is_last = (rtl ? !list->prev : !list->next);
4494
4495               /* (I don't like the snprintfs either, but couldn't find a
4496                * less messy way).
4497                */
4498               if (is_first && is_last)
4499                 g_snprintf (new_detail, 127, "%s", detail);
4500               else if (is_first)
4501                 g_snprintf (new_detail, 127, "%s_start", detail);
4502               else if (is_last)
4503                 g_snprintf (new_detail, 127, "%s_end", detail);
4504               else
4505                 g_snprintf (new_detail, 128, "%s_middle", detail);
4506
4507               gtk_paint_flat_box (widget->style,
4508                                   event->window,
4509                                   state,
4510                                   GTK_SHADOW_NONE,
4511                                   &event->area,
4512                                   widget,
4513                                   new_detail,
4514                                   background_area.x,
4515                                   background_area.y,
4516                                   background_area.width,
4517                                   background_area.height);
4518             }
4519           else
4520             {
4521               gtk_paint_flat_box (widget->style,
4522                                   event->window,
4523                                   state,
4524                                   GTK_SHADOW_NONE,
4525                                   &event->area,
4526                                   widget,
4527                                   detail,
4528                                   background_area.x,
4529                                   background_area.y,
4530                                   background_area.width,
4531                                   background_area.height);
4532             }
4533
4534           if (draw_hgrid_lines)
4535             {
4536               if (background_area.y > 0)
4537                 gdk_draw_line (event->window,
4538                                tree_view->priv->grid_line_gc,
4539                                background_area.x, background_area.y,
4540                                background_area.x + background_area.width,
4541                                background_area.y);
4542
4543               if (y_offset + max_height >= event->area.height)
4544                 gdk_draw_line (event->window,
4545                                tree_view->priv->grid_line_gc,
4546                                background_area.x, background_area.y + max_height,
4547                                background_area.x + background_area.width,
4548                                background_area.y + max_height);
4549             }
4550
4551           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4552               tree_view->priv->tree_lines_enabled)
4553             {
4554               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4555                   && depth > 1)
4556                 {
4557                   gdk_draw_line (event->window,
4558                                  tree_view->priv->tree_line_gc,
4559                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4560                                  background_area.y + background_area.height / 2,
4561                                  background_area.x + tree_view->priv->expander_size * (depth - 1.1),
4562                                  background_area.y + background_area.height / 2);
4563                 }
4564               else if (depth > 1)
4565                 {
4566                   gdk_draw_line (event->window,
4567                                  tree_view->priv->tree_line_gc,
4568                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4569                                  background_area.y + background_area.height / 2,
4570                                  background_area.x + tree_view->priv->expander_size * (depth - 0.5),
4571                                  background_area.y + background_area.height / 2);
4572                 }
4573
4574               if (depth > 1)
4575                 {
4576                   gint i;
4577                   GtkRBNode *tmp_node;
4578                   GtkRBTree *tmp_tree;
4579
4580                   if (!_gtk_rbtree_next (tree, node))
4581                     gdk_draw_line (event->window,
4582                                    tree_view->priv->tree_line_gc,
4583                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4584                                    background_area.y,
4585                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4586                                    background_area.y + background_area.height / 2);
4587                   else
4588                     gdk_draw_line (event->window,
4589                                    tree_view->priv->tree_line_gc,
4590                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4591                                    background_area.y,
4592                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4593                                    background_area.y + background_area.height);
4594
4595                   tmp_node = tree->parent_node;
4596                   tmp_tree = tree->parent_tree;
4597
4598                   for (i = depth - 2; i > 0; i--)
4599                     {
4600                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4601                         gdk_draw_line (event->window,
4602                                        tree_view->priv->tree_line_gc,
4603                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4604                                        background_area.y,
4605                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4606                                        background_area.y + background_area.height);
4607
4608                       tmp_node = tmp_tree->parent_node;
4609                       tmp_tree = tmp_tree->parent_tree;
4610                     }
4611                 }
4612             }
4613
4614           if (gtk_tree_view_is_expander_column (tree_view, column))
4615             {
4616               if (!rtl)
4617                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4618               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4619
4620               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4621                 {
4622                   if (!rtl)
4623                     cell_area.x += depth * tree_view->priv->expander_size;
4624                   cell_area.width -= depth * tree_view->priv->expander_size;
4625                 }
4626
4627               /* If we have an expander column, the highlight underline
4628                * starts with that column, so that it indicates which
4629                * level of the tree we're dropping at.
4630                */
4631               highlight_x = cell_area.x;
4632               expander_cell_width = cell_area.width;
4633
4634               if (is_separator)
4635                 gtk_paint_hline (widget->style,
4636                                  event->window,
4637                                  state,
4638                                  &cell_area,
4639                                  widget,
4640                                  NULL,
4641                                  cell_area.x,
4642                                  cell_area.x + cell_area.width,
4643                                  cell_area.y + cell_area.height / 2);
4644               else
4645                 _gtk_tree_view_column_cell_render (column,
4646                                                    event->window,
4647                                                    &background_area,
4648                                                    &cell_area,
4649                                                    &event->area,
4650                                                    flags);
4651               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4652                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4653                 {
4654                   if (!got_pointer)
4655                     {
4656                       gdk_window_get_pointer (tree_view->priv->bin_window,
4657                                               &pointer_x, &pointer_y, NULL);
4658                       got_pointer = TRUE;
4659                     }
4660
4661                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4662                                             tree,
4663                                             node,
4664                                             pointer_x, pointer_y);
4665                 }
4666             }
4667           else
4668             {
4669               if (is_separator)
4670                 gtk_paint_hline (widget->style,
4671                                  event->window,
4672                                  state,
4673                                  &cell_area,
4674                                  widget,
4675                                  NULL,
4676                                  cell_area.x,
4677                                  cell_area.x + cell_area.width,
4678                                  cell_area.y + cell_area.height / 2);
4679               else
4680                 _gtk_tree_view_column_cell_render (column,
4681                                                    event->window,
4682                                                    &background_area,
4683                                                    &cell_area,
4684                                                    &event->area,
4685                                                    flags);
4686             }
4687           if (node == cursor && has_special_cell &&
4688               ((column == tree_view->priv->focus_column &&
4689                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4690                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4691                (column == tree_view->priv->edited_column)))
4692             {
4693               _gtk_tree_view_column_cell_draw_focus (column,
4694                                                      event->window,
4695                                                      &background_area,
4696                                                      &cell_area,
4697                                                      &event->area,
4698                                                      flags);
4699             }
4700           cell_offset += column->width;
4701         }
4702
4703       if (node == drag_highlight)
4704         {
4705           /* Draw indicator for the drop
4706            */
4707           gint highlight_y = -1;
4708           GtkRBTree *tree = NULL;
4709           GtkRBNode *node = NULL;
4710           gint width;
4711
4712           switch (tree_view->priv->drag_dest_pos)
4713             {
4714             case GTK_TREE_VIEW_DROP_BEFORE:
4715               highlight_y = background_area.y - 1;
4716               if (highlight_y < 0)
4717                       highlight_y = 0;
4718               break;
4719
4720             case GTK_TREE_VIEW_DROP_AFTER:
4721               highlight_y = background_area.y + background_area.height - 1;
4722               break;
4723
4724             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4725             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4726               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4727
4728               if (tree == NULL)
4729                 break;
4730               gdk_drawable_get_size (tree_view->priv->bin_window,
4731                                      &width, NULL);
4732
4733               if (row_ending_details)
4734                 gtk_paint_focus (widget->style,
4735                                  tree_view->priv->bin_window,
4736                                  GTK_WIDGET_STATE (widget),
4737                                  &event->area,
4738                                  widget,
4739                                  (is_first
4740                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4741                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4742                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4743                                  - focus_line_width / 2,
4744                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4745                                - focus_line_width + 1);
4746               else
4747                 gtk_paint_focus (widget->style,
4748                                  tree_view->priv->bin_window,
4749                                  GTK_WIDGET_STATE (widget),
4750                                  &event->area,
4751                                  widget,
4752                                  "treeview-drop-indicator",
4753                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4754                                  - focus_line_width / 2,
4755                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4756                                  - focus_line_width + 1);
4757               break;
4758             }
4759
4760           if (highlight_y >= 0)
4761             {
4762               gdk_draw_line (event->window,
4763                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4764                              rtl ? highlight_x + expander_cell_width : highlight_x,
4765                              highlight_y,
4766                              rtl ? 0 : bin_window_width,
4767                              highlight_y);
4768             }
4769         }
4770
4771       /* draw the big row-spanning focus rectangle, if needed */
4772       if (!has_special_cell && node == cursor &&
4773           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4774           GTK_WIDGET_HAS_FOCUS (widget))
4775         {
4776           gint tmp_y, tmp_height;
4777           gint width;
4778           GtkStateType focus_rect_state;
4779
4780           focus_rect_state =
4781             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4782             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4783              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4784               GTK_STATE_NORMAL));
4785
4786           gdk_drawable_get_size (tree_view->priv->bin_window,
4787                                  &width, NULL);
4788
4789           if (draw_hgrid_lines)
4790             {
4791               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4792               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4793             }
4794           else
4795             {
4796               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4797               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4798             }
4799
4800           if (row_ending_details)
4801             gtk_paint_focus (widget->style,
4802                              tree_view->priv->bin_window,
4803                              focus_rect_state,
4804                              &event->area,
4805                              widget,
4806                              (is_first
4807                               ? (is_last ? "treeview" : "treeview-left" )
4808                               : (is_last ? "treeview-right" : "treeview-middle" )),
4809                              0, tmp_y,
4810                              width, tmp_height);
4811           else
4812             gtk_paint_focus (widget->style,
4813                              tree_view->priv->bin_window,
4814                              focus_rect_state,
4815                              &event->area,
4816                              widget,
4817                              "treeview",
4818                              0, tmp_y,
4819                              width, tmp_height);
4820         }
4821
4822       y_offset += max_height;
4823       if (node->children)
4824         {
4825           GtkTreeIter parent = iter;
4826           gboolean has_child;
4827
4828           tree = node->children;
4829           node = tree->root;
4830
4831           g_assert (node != tree->nil);
4832
4833           while (node->left != tree->nil)
4834             node = node->left;
4835           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4836                                                     &iter,
4837                                                     &parent);
4838           depth++;
4839
4840           /* Sanity Check! */
4841           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4842         }
4843       else
4844         {
4845           gboolean done = FALSE;
4846
4847           do
4848             {
4849               node = _gtk_rbtree_next (tree, node);
4850               if (node != NULL)
4851                 {
4852                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4853                   done = TRUE;
4854
4855                   /* Sanity Check! */
4856                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4857                 }
4858               else
4859                 {
4860                   GtkTreeIter parent_iter = iter;
4861                   gboolean has_parent;
4862
4863                   node = tree->parent_node;
4864                   tree = tree->parent_tree;
4865                   if (tree == NULL)
4866                     /* we should go to done to free some memory */
4867                     goto done;
4868                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4869                                                            &iter,
4870                                                            &parent_iter);
4871                   depth--;
4872
4873                   /* Sanity check */
4874                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4875                 }
4876             }
4877           while (!done);
4878         }
4879     }
4880   while (y_offset < event->area.height);
4881
4882 done:
4883   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4884
4885  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4886    {
4887      GdkRectangle *rectangles;
4888      gint n_rectangles;
4889
4890      gdk_region_get_rectangles (event->region,
4891                                 &rectangles,
4892                                 &n_rectangles);
4893
4894      while (n_rectangles--)
4895        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4896
4897      g_free (rectangles);
4898    }
4899
4900   if (cursor_path)
4901     gtk_tree_path_free (cursor_path);
4902
4903   if (drag_dest_path)
4904     gtk_tree_path_free (drag_dest_path);
4905
4906   return FALSE;
4907 }
4908
4909 static gboolean
4910 gtk_tree_view_expose (GtkWidget      *widget,
4911                       GdkEventExpose *event)
4912 {
4913   GtkTreeView *tree_view;
4914
4915   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
4916
4917   tree_view = GTK_TREE_VIEW (widget);
4918
4919   if (event->window == tree_view->priv->bin_window)
4920     {
4921       gboolean retval;
4922       GList *tmp_list;
4923
4924       retval = gtk_tree_view_bin_expose (widget, event);
4925
4926       /* We can't just chain up to Container::expose as it will try to send the
4927        * event to the headers, so we handle propagating it to our children
4928        * (eg. widgets being edited) ourselves.
4929        */
4930       tmp_list = tree_view->priv->children;
4931       while (tmp_list)
4932         {
4933           GtkTreeViewChild *child = tmp_list->data;
4934           tmp_list = tmp_list->next;
4935
4936           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4937         }
4938
4939       return retval;
4940     }
4941
4942   else if (event->window == tree_view->priv->header_window)
4943     {
4944       GList *list;
4945
4946       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4947         {
4948           GtkTreeViewColumn *column = list->data;
4949
4950           if (column == tree_view->priv->drag_column)
4951             continue;
4952
4953           if (column->visible)
4954             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4955                                             column->button,
4956                                             event);
4957         }
4958     }
4959   else if (event->window == tree_view->priv->drag_window)
4960     {
4961       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4962                                       tree_view->priv->drag_column->button,
4963                                       event);
4964     }
4965   return TRUE;
4966 }
4967
4968 enum
4969 {
4970   DROP_HOME,
4971   DROP_RIGHT,
4972   DROP_LEFT,
4973   DROP_END
4974 };
4975
4976 /* returns 0x1 when no column has been found -- yes it's hackish */
4977 static GtkTreeViewColumn *
4978 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
4979                                GtkTreeViewColumn *column,
4980                                gint               drop_position)
4981 {
4982   GtkTreeViewColumn *left_column = NULL;
4983   GtkTreeViewColumn *cur_column = NULL;
4984   GList *tmp_list;
4985
4986   if (!column->reorderable)
4987     return (GtkTreeViewColumn *)0x1;
4988
4989   switch (drop_position)
4990     {
4991       case DROP_HOME:
4992         /* find first column where we can drop */
4993         tmp_list = tree_view->priv->columns;
4994         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
4995           return (GtkTreeViewColumn *)0x1;
4996
4997         while (tmp_list)
4998           {
4999             g_assert (tmp_list);
5000
5001             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5002             tmp_list = tmp_list->next;
5003
5004             if (left_column && left_column->visible == FALSE)
5005               continue;
5006
5007             if (!tree_view->priv->column_drop_func)
5008               return left_column;
5009
5010             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5011               {
5012                 left_column = cur_column;
5013                 continue;
5014               }
5015
5016             return left_column;
5017           }
5018
5019         if (!tree_view->priv->column_drop_func)
5020           return left_column;
5021
5022         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5023           return left_column;
5024         else
5025           return (GtkTreeViewColumn *)0x1;
5026         break;
5027
5028       case DROP_RIGHT:
5029         /* find first column after column where we can drop */
5030         tmp_list = tree_view->priv->columns;
5031
5032         for (; tmp_list; tmp_list = tmp_list->next)
5033           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5034             break;
5035
5036         if (!tmp_list || !tmp_list->next)
5037           return (GtkTreeViewColumn *)0x1;
5038
5039         tmp_list = tmp_list->next;
5040         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5041         tmp_list = tmp_list->next;
5042
5043         while (tmp_list)
5044           {
5045             g_assert (tmp_list);
5046
5047             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5048             tmp_list = tmp_list->next;
5049
5050             if (left_column && left_column->visible == FALSE)
5051               {
5052                 left_column = cur_column;
5053                 if (tmp_list)
5054                   tmp_list = tmp_list->next;
5055                 continue;
5056               }
5057
5058             if (!tree_view->priv->column_drop_func)
5059               return left_column;
5060
5061             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5062               {
5063                 left_column = cur_column;
5064                 continue;
5065               }
5066
5067             return left_column;
5068           }
5069
5070         if (!tree_view->priv->column_drop_func)
5071           return left_column;
5072
5073         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5074           return left_column;
5075         else
5076           return (GtkTreeViewColumn *)0x1;
5077         break;
5078
5079       case DROP_LEFT:
5080         /* find first column before column where we can drop */
5081         tmp_list = tree_view->priv->columns;
5082
5083         for (; tmp_list; tmp_list = tmp_list->next)
5084           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5085             break;
5086
5087         if (!tmp_list || !tmp_list->prev)
5088           return (GtkTreeViewColumn *)0x1;
5089
5090         tmp_list = tmp_list->prev;
5091         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5092         tmp_list = tmp_list->prev;
5093
5094         while (tmp_list)
5095           {
5096             g_assert (tmp_list);
5097
5098             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5099
5100             if (left_column && !left_column->visible)
5101               {
5102                 /*if (!tmp_list->prev)
5103                   return (GtkTreeViewColumn *)0x1;
5104                   */
5105 /*
5106                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5107                 tmp_list = tmp_list->prev->prev;
5108                 continue;*/
5109
5110                 cur_column = left_column;
5111                 if (tmp_list)
5112                   tmp_list = tmp_list->prev;
5113                 continue;
5114               }
5115
5116             if (!tree_view->priv->column_drop_func)
5117               return left_column;
5118
5119             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5120               return left_column;
5121
5122             cur_column = left_column;
5123             tmp_list = tmp_list->prev;
5124           }
5125
5126         if (!tree_view->priv->column_drop_func)
5127           return NULL;
5128
5129         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5130           return NULL;
5131         else
5132           return (GtkTreeViewColumn *)0x1;
5133         break;
5134
5135       case DROP_END:
5136         /* same as DROP_HOME case, but doing it backwards */
5137         tmp_list = g_list_last (tree_view->priv->columns);
5138         cur_column = NULL;
5139
5140         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5141           return (GtkTreeViewColumn *)0x1;
5142
5143         while (tmp_list)
5144           {
5145             g_assert (tmp_list);
5146
5147             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5148
5149             if (left_column && !left_column->visible)
5150               {
5151                 cur_column = left_column;
5152                 tmp_list = tmp_list->prev;
5153               }
5154
5155             if (!tree_view->priv->column_drop_func)
5156               return left_column;
5157
5158             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5159               return left_column;
5160
5161             cur_column = left_column;
5162             tmp_list = tmp_list->prev;
5163           }
5164
5165         if (!tree_view->priv->column_drop_func)
5166           return NULL;
5167
5168         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5169           return NULL;
5170         else
5171           return (GtkTreeViewColumn *)0x1;
5172         break;
5173     }
5174
5175   return (GtkTreeViewColumn *)0x1;
5176 }
5177
5178 static gboolean
5179 gtk_tree_view_key_press (GtkWidget   *widget,
5180                          GdkEventKey *event)
5181 {
5182   GtkTreeView *tree_view = (GtkTreeView *) widget;
5183
5184   if (tree_view->priv->rubber_band_status)
5185     {
5186       if (event->keyval == GDK_Escape)
5187         gtk_tree_view_stop_rubber_band (tree_view);
5188
5189       return TRUE;
5190     }
5191
5192   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5193     {
5194       if (event->keyval == GDK_Escape)
5195         {
5196           tree_view->priv->cur_reorder = NULL;
5197           gtk_tree_view_button_release_drag_column (widget, NULL);
5198         }
5199       return TRUE;
5200     }
5201
5202   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5203     {
5204       GList *focus_column;
5205       gboolean rtl;
5206
5207       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5208
5209       for (focus_column = tree_view->priv->columns;
5210            focus_column;
5211            focus_column = focus_column->next)
5212         {
5213           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5214
5215           if (GTK_WIDGET_HAS_FOCUS (column->button))
5216             break;
5217         }
5218
5219       if (focus_column &&
5220           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5221           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5222            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5223         {
5224           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5225
5226           if (!column->resizable)
5227             {
5228               gtk_widget_error_bell (widget);
5229               return TRUE;
5230             }
5231
5232           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5233               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5234             {
5235               gint old_width = column->resized_width;
5236
5237               column->resized_width = MAX (column->resized_width,
5238                                            column->width);
5239               column->resized_width -= 2;
5240               if (column->resized_width < 0)
5241                 column->resized_width = 0;
5242
5243               if (column->min_width == -1)
5244                 column->resized_width = MAX (column->button->requisition.width,
5245                                              column->resized_width);
5246               else
5247                 column->resized_width = MAX (column->min_width,
5248                                              column->resized_width);
5249
5250               if (column->max_width != -1)
5251                 column->resized_width = MIN (column->resized_width,
5252                                              column->max_width);
5253
5254               column->use_resized_width = TRUE;
5255
5256               if (column->resized_width != old_width)
5257                 gtk_widget_queue_resize (widget);
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               gint old_width = column->resized_width;
5265
5266               column->resized_width = MAX (column->resized_width,
5267                                            column->width);
5268               column->resized_width += 2;
5269
5270               if (column->max_width != -1)
5271                 column->resized_width = MIN (column->resized_width,
5272                                              column->max_width);
5273
5274               column->use_resized_width = TRUE;
5275
5276               if (column->resized_width != old_width)
5277                 gtk_widget_queue_resize (widget);
5278               else
5279                 gtk_widget_error_bell (widget);
5280             }
5281
5282           return TRUE;
5283         }
5284
5285       if (focus_column &&
5286           (event->state & GDK_MOD1_MASK) &&
5287           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5288            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5289            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5290            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5291         {
5292           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5293
5294           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5295               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5296             {
5297               GtkTreeViewColumn *col;
5298               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5299               if (col != (GtkTreeViewColumn *)0x1)
5300                 gtk_tree_view_move_column_after (tree_view, column, col);
5301               else
5302                 gtk_widget_error_bell (widget);
5303             }
5304           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5305                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5306             {
5307               GtkTreeViewColumn *col;
5308               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5309               if (col != (GtkTreeViewColumn *)0x1)
5310                 gtk_tree_view_move_column_after (tree_view, column, col);
5311               else
5312                 gtk_widget_error_bell (widget);
5313             }
5314           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5315             {
5316               GtkTreeViewColumn *col;
5317               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5318               if (col != (GtkTreeViewColumn *)0x1)
5319                 gtk_tree_view_move_column_after (tree_view, column, col);
5320               else
5321                 gtk_widget_error_bell (widget);
5322             }
5323           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5324             {
5325               GtkTreeViewColumn *col;
5326               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5327               if (col != (GtkTreeViewColumn *)0x1)
5328                 gtk_tree_view_move_column_after (tree_view, column, col);
5329               else
5330                 gtk_widget_error_bell (widget);
5331             }
5332
5333           return TRUE;
5334         }
5335     }
5336
5337   /* Chain up to the parent class.  It handles the keybindings. */
5338   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5339     return TRUE;
5340
5341   /* We pass the event to the search_entry.  If its text changes, then we start
5342    * the typeahead find capabilities. */
5343   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5344       && tree_view->priv->enable_search
5345       && !tree_view->priv->search_custom_entry_set)
5346     {
5347       GdkEvent *new_event;
5348       char *old_text;
5349       const char *new_text;
5350       gboolean retval;
5351       GdkScreen *screen;
5352       gboolean text_modified;
5353       gulong popup_menu_id;
5354
5355       gtk_tree_view_ensure_interactive_directory (tree_view);
5356
5357       /* Make a copy of the current text */
5358       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5359       new_event = gdk_event_copy ((GdkEvent *) event);
5360       g_object_unref (((GdkEventKey *) new_event)->window);
5361       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5362       gtk_widget_realize (tree_view->priv->search_window);
5363
5364       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5365                                         "popup_menu", G_CALLBACK (gtk_true), NULL);
5366
5367       /* Move the entry off screen */
5368       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5369       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5370                        gdk_screen_get_width (screen) + 1,
5371                        gdk_screen_get_height (screen) + 1);
5372       gtk_widget_show (tree_view->priv->search_window);
5373
5374       /* Send the event to the window.  If the preedit_changed signal is emitted
5375        * during this event, we will set priv->imcontext_changed  */
5376       tree_view->priv->imcontext_changed = FALSE;
5377       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5378       gdk_event_free (new_event);
5379       gtk_widget_hide (tree_view->priv->search_window);
5380
5381       g_signal_handler_disconnect (tree_view->priv->search_entry,
5382                                    popup_menu_id);
5383
5384       /* We check to make sure that the entry tried to handle the text, and that
5385        * the text has changed.
5386        */
5387       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5388       text_modified = strcmp (old_text, new_text) != 0;
5389       g_free (old_text);
5390       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5391           (retval && text_modified))               /* ...or the text was modified */
5392         {
5393           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5394             {
5395               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5396               return TRUE;
5397             }
5398           else
5399             {
5400               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5401               return FALSE;
5402             }
5403         }
5404     }
5405
5406   return FALSE;
5407 }
5408
5409 static gboolean
5410 gtk_tree_view_key_release (GtkWidget   *widget,
5411                            GdkEventKey *event)
5412 {
5413   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5414
5415   if (tree_view->priv->rubber_band_status)
5416     return TRUE;
5417
5418   return (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event) (widget, event);
5419 }
5420
5421 /* FIXME Is this function necessary? Can I get an enter_notify event
5422  * w/o either an expose event or a mouse motion event?
5423  */
5424 static gboolean
5425 gtk_tree_view_enter_notify (GtkWidget        *widget,
5426                             GdkEventCrossing *event)
5427 {
5428   GtkTreeView *tree_view;
5429   GtkRBTree *tree;
5430   GtkRBNode *node;
5431   gint new_y;
5432
5433   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
5434
5435   tree_view = GTK_TREE_VIEW (widget);
5436
5437   /* Sanity check it */
5438   if (event->window != tree_view->priv->bin_window)
5439     return FALSE;
5440
5441   if (tree_view->priv->tree == NULL)
5442     return FALSE;
5443
5444   /* find the node internally */
5445   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5446   if (new_y < 0)
5447     new_y = 0;
5448   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5449
5450   if ((tree_view->priv->button_pressed_node == NULL) ||
5451       (tree_view->priv->button_pressed_node == node))
5452     prelight_or_select (tree_view, tree, node, event->x, event->y);
5453
5454   return TRUE;
5455 }
5456
5457 static gboolean
5458 gtk_tree_view_leave_notify (GtkWidget        *widget,
5459                             GdkEventCrossing *event)
5460 {
5461   GtkTreeView *tree_view;
5462
5463   if (event->mode == GDK_CROSSING_GRAB)
5464     return TRUE;
5465
5466   tree_view = GTK_TREE_VIEW (widget);
5467
5468   if (tree_view->priv->prelight_node)
5469     _gtk_tree_view_queue_draw_node (tree_view,
5470                                    tree_view->priv->prelight_tree,
5471                                    tree_view->priv->prelight_node,
5472                                    NULL);
5473
5474   prelight_or_select (tree_view,
5475                       NULL, NULL,
5476                       -1000, -1000); /* coords not possibly over an arrow */
5477
5478   return TRUE;
5479 }
5480
5481
5482 static gint
5483 gtk_tree_view_focus_out (GtkWidget     *widget,
5484                          GdkEventFocus *event)
5485 {
5486   GtkTreeView *tree_view;
5487
5488   tree_view = GTK_TREE_VIEW (widget);
5489
5490   gtk_widget_queue_draw (widget);
5491
5492   /* destroy interactive search dialog */
5493   if (tree_view->priv->search_window)
5494     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5495
5496   return FALSE;
5497 }
5498
5499
5500 /* Incremental Reflow
5501  */
5502
5503 static void
5504 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5505                                  GtkRBTree   *tree,
5506                                  GtkRBNode   *node)
5507 {
5508   gint y;
5509
5510   y = _gtk_rbtree_node_find_offset (tree, node)
5511     - tree_view->priv->vadjustment->value
5512     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5513
5514   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5515                               0, y,
5516                               GTK_WIDGET (tree_view)->allocation.width,
5517                               GTK_RBNODE_GET_HEIGHT (node));
5518 }
5519
5520 static gboolean
5521 node_is_visible (GtkTreeView *tree_view,
5522                  GtkRBTree   *tree,
5523                  GtkRBNode   *node)
5524 {
5525   int y;
5526   int height;
5527
5528   y = _gtk_rbtree_node_find_offset (tree, node);
5529   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5530
5531   if (y >= tree_view->priv->vadjustment->value &&
5532       y + height <= (tree_view->priv->vadjustment->value
5533                      + tree_view->priv->vadjustment->page_size))
5534     return TRUE;
5535
5536   return FALSE;
5537 }
5538
5539 /* Returns TRUE if it updated the size
5540  */
5541 static gboolean
5542 validate_row (GtkTreeView *tree_view,
5543               GtkRBTree   *tree,
5544               GtkRBNode   *node,
5545               GtkTreeIter *iter,
5546               GtkTreePath *path)
5547 {
5548   GtkTreeViewColumn *column;
5549   GList *list, *first_column, *last_column;
5550   gint height = 0;
5551   gint horizontal_separator;
5552   gint vertical_separator;
5553   gint focus_line_width;
5554   gint depth = gtk_tree_path_get_depth (path);
5555   gboolean retval = FALSE;
5556   gboolean is_separator = FALSE;
5557   gboolean draw_vgrid_lines, draw_hgrid_lines;
5558   gint focus_pad;
5559   gint grid_line_width;
5560
5561   /* double check the row needs validating */
5562   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5563       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5564     return FALSE;
5565
5566   is_separator = row_is_separator (tree_view, iter, NULL);
5567
5568   gtk_widget_style_get (GTK_WIDGET (tree_view),
5569                         "focus-padding", &focus_pad,
5570                         "focus-line-width", &focus_line_width,
5571                         "horizontal-separator", &horizontal_separator,
5572                         "vertical-separator", &vertical_separator,
5573                         "grid-line-width", &grid_line_width,
5574                         NULL);
5575
5576   draw_vgrid_lines =
5577     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5578     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5579   draw_hgrid_lines =
5580     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5581     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5582
5583   for (last_column = g_list_last (tree_view->priv->columns);
5584        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5585        last_column = last_column->prev)
5586     ;
5587
5588   for (first_column = g_list_first (tree_view->priv->columns);
5589        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5590        first_column = first_column->next)
5591     ;
5592
5593   for (list = tree_view->priv->columns; list; list = list->next)
5594     {
5595       gint tmp_width;
5596       gint tmp_height;
5597
5598       column = list->data;
5599
5600       if (! column->visible)
5601         continue;
5602
5603       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5604         continue;
5605
5606       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5607                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5608                                                node->children?TRUE:FALSE);
5609       gtk_tree_view_column_cell_get_size (column,
5610                                           NULL, NULL, NULL,
5611                                           &tmp_width, &tmp_height);
5612
5613       if (!is_separator)
5614         {
5615           tmp_height += vertical_separator;
5616           height = MAX (height, tmp_height);
5617           height = MAX (height, tree_view->priv->expander_size);
5618         }
5619       else
5620         height = 2 + 2 * focus_pad;
5621
5622       if (gtk_tree_view_is_expander_column (tree_view, column))
5623         {
5624           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5625
5626           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5627             tmp_width += depth * tree_view->priv->expander_size;
5628         }
5629       else
5630         tmp_width = tmp_width + horizontal_separator;
5631
5632       if (draw_vgrid_lines)
5633         {
5634           if (list->data == first_column || list->data == last_column)
5635             tmp_width += grid_line_width / 2.0;
5636           else
5637             tmp_width += grid_line_width;
5638         }
5639
5640       if (tmp_width > column->requested_width)
5641         {
5642           retval = TRUE;
5643           column->requested_width = tmp_width;
5644         }
5645     }
5646
5647   if (draw_hgrid_lines)
5648     height += grid_line_width;
5649
5650   if (height != GTK_RBNODE_GET_HEIGHT (node))
5651     {
5652       retval = TRUE;
5653       _gtk_rbtree_node_set_height (tree, node, height);
5654     }
5655   _gtk_rbtree_node_mark_valid (tree, node);
5656
5657   return retval;
5658 }
5659
5660
5661 static void
5662 validate_visible_area (GtkTreeView *tree_view)
5663 {
5664   GtkTreePath *path = NULL;
5665   GtkTreePath *above_path = NULL;
5666   GtkTreeIter iter;
5667   GtkRBTree *tree = NULL;
5668   GtkRBNode *node = NULL;
5669   gboolean need_redraw = FALSE;
5670   gboolean size_changed = FALSE;
5671   gint total_height;
5672   gint area_above = 0;
5673   gint area_below = 0;
5674
5675   if (tree_view->priv->tree == NULL)
5676     return;
5677
5678   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5679       tree_view->priv->scroll_to_path == NULL)
5680     return;
5681
5682   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5683
5684   if (total_height == 0)
5685     return;
5686
5687   /* First, we check to see if we need to scroll anywhere
5688    */
5689   if (tree_view->priv->scroll_to_path)
5690     {
5691       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5692       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5693         {
5694           /* we are going to scroll, and will update dy */
5695           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5696           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5697               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5698             {
5699               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5700               if (validate_row (tree_view, tree, node, &iter, path))
5701                 size_changed = TRUE;
5702             }
5703
5704           if (tree_view->priv->scroll_to_use_align)
5705             {
5706               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5707               area_above = (total_height - height) *
5708                 tree_view->priv->scroll_to_row_align;
5709               area_below = total_height - area_above - height;
5710               area_above = MAX (area_above, 0);
5711               area_below = MAX (area_below, 0);
5712             }
5713           else
5714             {
5715               /* two cases:
5716                * 1) row not visible
5717                * 2) row visible
5718                */
5719               gint dy;
5720               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5721
5722               dy = _gtk_rbtree_node_find_offset (tree, node);
5723
5724               if (dy >= tree_view->priv->vadjustment->value &&
5725                   dy + height <= (tree_view->priv->vadjustment->value
5726                                   + tree_view->priv->vadjustment->page_size))
5727                 {
5728                   /* row visible: keep the row at the same position */
5729                   area_above = dy - tree_view->priv->vadjustment->value;
5730                   area_below = (tree_view->priv->vadjustment->value +
5731                                 tree_view->priv->vadjustment->page_size)
5732                                - dy - height;
5733                 }
5734               else
5735                 {
5736                   /* row not visible */
5737                   if (dy >= 0
5738                       && dy + height <= tree_view->priv->vadjustment->page_size)
5739                     {
5740                       /* row at the beginning -- fixed */
5741                       area_above = dy;
5742                       area_below = tree_view->priv->vadjustment->page_size
5743                                    - area_above - height;
5744                     }
5745                   else if (dy >= (tree_view->priv->vadjustment->upper -
5746                                   tree_view->priv->vadjustment->page_size))
5747                     {
5748                       /* row at the end -- fixed */
5749                       area_above = dy - (tree_view->priv->vadjustment->upper -
5750                                    tree_view->priv->vadjustment->page_size);
5751                       area_below = tree_view->priv->vadjustment->page_size -
5752                                    area_above - height;
5753
5754                       if (area_below < 0)
5755                         {
5756                           area_above = tree_view->priv->vadjustment->page_size - height;
5757                           area_below = 0;
5758                         }
5759                     }
5760                   else
5761                     {
5762                       /* row somewhere in the middle, bring it to the top
5763                        * of the view
5764                        */
5765                       area_above = 0;
5766                       area_below = total_height - height;
5767                     }
5768                 }
5769             }
5770         }
5771       else
5772         /* the scroll to isn't valid; ignore it.
5773          */
5774         {
5775           if (tree_view->priv->scroll_to_path && !path)
5776             {
5777               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5778               tree_view->priv->scroll_to_path = NULL;
5779             }
5780           if (path)
5781             gtk_tree_path_free (path);
5782           path = NULL;
5783         }
5784     }
5785
5786   /* We didn't have a scroll_to set, so we just handle things normally
5787    */
5788   if (path == NULL)
5789     {
5790       gint offset;
5791
5792       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5793                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5794                                         &tree, &node);
5795       if (node == NULL)
5796         {
5797           /* In this case, nothing has been validated */
5798           path = gtk_tree_path_new_first ();
5799           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5800         }
5801       else
5802         {
5803           path = _gtk_tree_view_find_path (tree_view, tree, node);
5804           total_height += offset;
5805         }
5806
5807       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5808
5809       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5810           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5811         {
5812           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5813           if (validate_row (tree_view, tree, node, &iter, path))
5814             size_changed = TRUE;
5815         }
5816       area_above = 0;
5817       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5818     }
5819
5820   above_path = gtk_tree_path_copy (path);
5821
5822   /* if we do not validate any row above the new top_row, we will make sure
5823    * that the row immediately above top_row has been validated. (if we do not
5824    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5825    * when invalidated that row's height will be zero. and this will mess up
5826    * scrolling).
5827    */
5828   if (area_above == 0)
5829     {
5830       GtkRBTree *tmptree;
5831       GtkRBNode *tmpnode;
5832
5833       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5834       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5835
5836       if (tmpnode)
5837         {
5838           GtkTreePath *tmppath;
5839           GtkTreeIter tmpiter;
5840
5841           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5842           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5843
5844           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5845               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5846             {
5847               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5848               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5849                 size_changed = TRUE;
5850             }
5851
5852           gtk_tree_path_free (tmppath);
5853         }
5854     }
5855
5856   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5857    * backwards is much slower then forward, as there is no iter_prev function.
5858    * We go forwards first in case we run out of tree.  Then we go backwards to
5859    * fill out the top.
5860    */
5861   while (node && area_below > 0)
5862     {
5863       if (node->children)
5864         {
5865           GtkTreeIter parent = iter;
5866           gboolean has_child;
5867
5868           tree = node->children;
5869           node = tree->root;
5870
5871           g_assert (node != tree->nil);
5872
5873           while (node->left != tree->nil)
5874             node = node->left;
5875           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5876                                                     &iter,
5877                                                     &parent);
5878           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5879           gtk_tree_path_down (path);
5880         }
5881       else
5882         {
5883           gboolean done = FALSE;
5884           do
5885             {
5886               node = _gtk_rbtree_next (tree, node);
5887               if (node != NULL)
5888                 {
5889                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5890                   done = TRUE;
5891                   gtk_tree_path_next (path);
5892
5893                   /* Sanity Check! */
5894                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5895                 }
5896               else
5897                 {
5898                   GtkTreeIter parent_iter = iter;
5899                   gboolean has_parent;
5900
5901                   node = tree->parent_node;
5902                   tree = tree->parent_tree;
5903                   if (tree == NULL)
5904                     break;
5905                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5906                                                            &iter,
5907                                                            &parent_iter);
5908                   gtk_tree_path_up (path);
5909
5910                   /* Sanity check */
5911                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5912                 }
5913             }
5914           while (!done);
5915         }
5916
5917       if (!node)
5918         break;
5919
5920       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5921           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5922         {
5923           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5924           if (validate_row (tree_view, tree, node, &iter, path))
5925               size_changed = TRUE;
5926         }
5927
5928       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5929     }
5930   gtk_tree_path_free (path);
5931
5932   /* If we ran out of tree, and have extra area_below left, we need to add it
5933    * to area_above */
5934   if (area_below > 0)
5935     area_above += area_below;
5936
5937   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5938
5939   /* We walk backwards */
5940   while (area_above > 0)
5941     {
5942       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5943       if (! gtk_tree_path_prev (above_path) && node != NULL)
5944         {
5945           gtk_tree_path_free (above_path);
5946           above_path = _gtk_tree_view_find_path (tree_view, tree, node);
5947         }
5948       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
5949
5950       if (node == NULL)
5951         break;
5952
5953       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5954           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5955         {
5956           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5957           if (validate_row (tree_view, tree, node, &iter, above_path))
5958             size_changed = TRUE;
5959         }
5960       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5961     }
5962
5963   /* if we scrolled to a path, we need to set the dy here,
5964    * and sync the top row accordingly
5965    */
5966   if (tree_view->priv->scroll_to_path)
5967     {
5968       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
5969       gtk_tree_view_top_row_to_dy (tree_view);
5970
5971       need_redraw = TRUE;
5972     }
5973   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
5974     {
5975       /* when we are not scrolling, we should never set dy to something
5976        * else than zero. we update top_row to be in sync with dy = 0.
5977        */
5978       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
5979       gtk_tree_view_dy_to_top_row (tree_view);
5980     }
5981   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
5982     {
5983       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
5984       gtk_tree_view_dy_to_top_row (tree_view);
5985     }
5986   else
5987     gtk_tree_view_top_row_to_dy (tree_view);
5988
5989   /* update width/height and queue a resize */
5990   if (size_changed)
5991     {
5992       GtkRequisition requisition;
5993
5994       /* We temporarily guess a size, under the assumption that it will be the
5995        * same when we get our next size_allocate.  If we don't do this, we'll be
5996        * in an inconsistent state if we call top_row_to_dy. */
5997
5998       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
5999       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6000       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6001       gtk_adjustment_changed (tree_view->priv->hadjustment);
6002       gtk_adjustment_changed (tree_view->priv->vadjustment);
6003       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6004     }
6005
6006   if (tree_view->priv->scroll_to_path)
6007     {
6008       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6009       tree_view->priv->scroll_to_path = NULL;
6010     }
6011
6012   if (above_path)
6013     gtk_tree_path_free (above_path);
6014
6015   if (tree_view->priv->scroll_to_column)
6016     {
6017       tree_view->priv->scroll_to_column = NULL;
6018     }
6019   if (need_redraw)
6020     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6021 }
6022
6023 static void
6024 initialize_fixed_height_mode (GtkTreeView *tree_view)
6025 {
6026   if (!tree_view->priv->tree)
6027     return;
6028
6029   if (tree_view->priv->fixed_height < 0)
6030     {
6031       GtkTreeIter iter;
6032       GtkTreePath *path;
6033
6034       GtkRBTree *tree = NULL;
6035       GtkRBNode *node = NULL;
6036
6037       tree = tree_view->priv->tree;
6038       node = tree->root;
6039
6040       path = _gtk_tree_view_find_path (tree_view, tree, node);
6041       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6042
6043       validate_row (tree_view, tree, node, &iter, path);
6044
6045       gtk_tree_path_free (path);
6046
6047       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6048     }
6049
6050    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6051                                  tree_view->priv->fixed_height, TRUE);
6052 }
6053
6054 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6055  * the left-most uninvalidated node.  We then try walking right, validating
6056  * nodes.  Once we find a valid node, we repeat the previous process of finding
6057  * the first invalid node.
6058  */
6059
6060 static gboolean
6061 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6062 {
6063   GtkRBTree *tree = NULL;
6064   GtkRBNode *node = NULL;
6065   gboolean validated_area = FALSE;
6066   gint retval = TRUE;
6067   GtkTreePath *path = NULL;
6068   GtkTreeIter iter;
6069   gint i = 0;
6070
6071   gint prev_height = -1;
6072   gboolean fixed_height = TRUE;
6073
6074   g_assert (tree_view);
6075
6076   if (tree_view->priv->tree == NULL)
6077       return FALSE;
6078
6079   if (tree_view->priv->fixed_height_mode)
6080     {
6081       if (tree_view->priv->fixed_height < 0)
6082         initialize_fixed_height_mode (tree_view);
6083
6084       return FALSE;
6085     }
6086
6087   do
6088     {
6089       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6090         {
6091           retval = FALSE;
6092           goto done;
6093         }
6094
6095       if (path != NULL)
6096         {
6097           node = _gtk_rbtree_next (tree, node);
6098           if (node != NULL)
6099             {
6100               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6101               gtk_tree_path_next (path);
6102             }
6103           else
6104             {
6105               gtk_tree_path_free (path);
6106               path = NULL;
6107             }
6108         }
6109
6110       if (path == NULL)
6111         {
6112           tree = tree_view->priv->tree;
6113           node = tree_view->priv->tree->root;
6114
6115           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6116
6117           do
6118             {
6119               if (node->left != tree->nil &&
6120                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6121                 {
6122                   node = node->left;
6123                 }
6124               else if (node->right != tree->nil &&
6125                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6126                 {
6127                   node = node->right;
6128                 }
6129               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6130                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6131                 {
6132                   break;
6133                 }
6134               else if (node->children != NULL)
6135                 {
6136                   tree = node->children;
6137                   node = tree->root;
6138                 }
6139               else
6140                 /* RBTree corruption!  All bad */
6141                 g_assert_not_reached ();
6142             }
6143           while (TRUE);
6144           path = _gtk_tree_view_find_path (tree_view, tree, node);
6145           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6146         }
6147
6148       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6149                        validated_area;
6150
6151       if (!tree_view->priv->fixed_height_check)
6152         {
6153           gint height;
6154
6155           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6156           if (prev_height < 0)
6157             prev_height = height;
6158           else if (prev_height != height)
6159             fixed_height = FALSE;
6160         }
6161
6162       i++;
6163     }
6164   while (i < GTK_TREE_VIEW_NUM_ROWS_PER_IDLE);
6165
6166   if (!tree_view->priv->fixed_height_check)
6167    {
6168      if (fixed_height)
6169        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6170
6171      tree_view->priv->fixed_height_check = 1;
6172    }
6173
6174  done:
6175   if (validated_area)
6176     {
6177       GtkRequisition requisition;
6178       /* We temporarily guess a size, under the assumption that it will be the
6179        * same when we get our next size_allocate.  If we don't do this, we'll be
6180        * in an inconsistent state when we call top_row_to_dy. */
6181
6182       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6183       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6184       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6185       gtk_adjustment_changed (tree_view->priv->hadjustment);
6186       gtk_adjustment_changed (tree_view->priv->vadjustment);
6187
6188       if (queue_resize)
6189         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
6190     }
6191
6192   if (path) gtk_tree_path_free (path);
6193
6194   return retval;
6195 }
6196
6197 static gboolean
6198 validate_rows (GtkTreeView *tree_view)
6199 {
6200   gboolean retval;
6201
6202   retval = do_validate_rows (tree_view, TRUE);
6203
6204   if (! retval && tree_view->priv->validate_rows_timer)
6205     {
6206       g_source_remove (tree_view->priv->validate_rows_timer);
6207       tree_view->priv->validate_rows_timer = 0;
6208     }
6209
6210   return retval;
6211 }
6212
6213 static gboolean
6214 validate_rows_handler (GtkTreeView *tree_view)
6215 {
6216   gboolean retval;
6217
6218   retval = do_validate_rows (tree_view, TRUE);
6219   if (! retval && tree_view->priv->validate_rows_timer)
6220     {
6221       g_source_remove (tree_view->priv->validate_rows_timer);
6222       tree_view->priv->validate_rows_timer = 0;
6223     }
6224
6225   return retval;
6226 }
6227
6228 static gboolean
6229 do_presize_handler (GtkTreeView *tree_view)
6230 {
6231   if (tree_view->priv->mark_rows_col_dirty)
6232     {
6233       if (tree_view->priv->tree)
6234         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6235       tree_view->priv->mark_rows_col_dirty = FALSE;
6236     }
6237   validate_visible_area (tree_view);
6238   tree_view->priv->presize_handler_timer = 0;
6239
6240   if (tree_view->priv->fixed_height_mode)
6241     {
6242       GtkRequisition requisition;
6243
6244       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6245
6246       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6247       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6248       gtk_adjustment_changed (tree_view->priv->hadjustment);
6249       gtk_adjustment_changed (tree_view->priv->vadjustment);
6250       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6251     }
6252
6253   return FALSE;
6254 }
6255
6256 static gboolean
6257 presize_handler_callback (gpointer data)
6258 {
6259   do_presize_handler (GTK_TREE_VIEW (data));
6260
6261   return FALSE;
6262 }
6263
6264 static void
6265 install_presize_handler (GtkTreeView *tree_view)
6266 {
6267   if (! GTK_WIDGET_REALIZED (tree_view))
6268     return;
6269
6270   if (! tree_view->priv->presize_handler_timer)
6271     {
6272       tree_view->priv->presize_handler_timer =
6273         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6274     }
6275   if (! tree_view->priv->validate_rows_timer)
6276     {
6277       tree_view->priv->validate_rows_timer =
6278         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6279     }
6280 }
6281
6282 static gboolean
6283 scroll_sync_handler (GtkTreeView *tree_view)
6284 {
6285   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6286     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6287   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6288     gtk_tree_view_top_row_to_dy (tree_view);
6289   else
6290     gtk_tree_view_dy_to_top_row (tree_view);
6291
6292   tree_view->priv->scroll_sync_timer = 0;
6293
6294   return FALSE;
6295 }
6296
6297 static void
6298 install_scroll_sync_handler (GtkTreeView *tree_view)
6299 {
6300   if (! GTK_WIDGET_REALIZED (tree_view))
6301     return;
6302
6303   if (!tree_view->priv->scroll_sync_timer)
6304     {
6305       tree_view->priv->scroll_sync_timer =
6306         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6307     }
6308 }
6309
6310 static void
6311 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6312                            GtkTreePath *path,
6313                            gint         offset)
6314 {
6315   gtk_tree_row_reference_free (tree_view->priv->top_row);
6316
6317   if (!path)
6318     {
6319       tree_view->priv->top_row = NULL;
6320       tree_view->priv->top_row_dy = 0;
6321     }
6322   else
6323     {
6324       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6325       tree_view->priv->top_row_dy = offset;
6326     }
6327 }
6328
6329 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6330  * it's set to be NULL, and top_row_dy is 0;
6331  */
6332 static void
6333 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6334 {
6335   gint offset;
6336   GtkTreePath *path;
6337   GtkRBTree *tree;
6338   GtkRBNode *node;
6339
6340   if (tree_view->priv->tree == NULL)
6341     {
6342       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6343     }
6344   else
6345     {
6346       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6347                                         tree_view->priv->dy,
6348                                         &tree, &node);
6349
6350       if (tree == NULL)
6351         {
6352           tree_view->priv->top_row = NULL;
6353           tree_view->priv->top_row_dy = 0;
6354         }
6355       else
6356         {
6357           path = _gtk_tree_view_find_path (tree_view, tree, node);
6358           gtk_tree_view_set_top_row (tree_view, path, offset);
6359           gtk_tree_path_free (path);
6360         }
6361     }
6362 }
6363
6364 static void
6365 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6366 {
6367   GtkTreePath *path;
6368   GtkRBTree *tree;
6369   GtkRBNode *node;
6370
6371   if (tree_view->priv->top_row)
6372     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6373   else
6374     path = NULL;
6375
6376   if (!path)
6377     tree = NULL;
6378   else
6379     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6380
6381   if (path)
6382     gtk_tree_path_free (path);
6383
6384   if (tree == NULL)
6385     {
6386       /* keep dy and set new toprow */
6387       gtk_tree_row_reference_free (tree_view->priv->top_row);
6388       tree_view->priv->top_row = NULL;
6389       tree_view->priv->top_row_dy = 0;
6390       /* DO NOT install the idle handler */
6391       gtk_tree_view_dy_to_top_row (tree_view);
6392       return;
6393     }
6394
6395   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6396       < tree_view->priv->top_row_dy)
6397     {
6398       /* new top row -- do NOT install the idle handler */
6399       gtk_tree_view_dy_to_top_row (tree_view);
6400       return;
6401     }
6402
6403   tree_view->priv->dy = _gtk_rbtree_node_find_offset (tree, node);
6404   tree_view->priv->dy += tree_view->priv->top_row_dy;
6405
6406   if (tree_view->priv->dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6407     tree_view->priv->dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6408
6409   tree_view->priv->dy = MAX (0, tree_view->priv->dy);
6410
6411   gtk_adjustment_set_value (tree_view->priv->vadjustment,
6412                             (gdouble)tree_view->priv->dy);
6413 }
6414
6415
6416 void
6417 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6418 {
6419   tree_view->priv->mark_rows_col_dirty = TRUE;
6420
6421   install_presize_handler (tree_view);
6422 }
6423
6424 /*
6425  * This function works synchronously (due to the while (validate_rows...)
6426  * loop).
6427  *
6428  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6429  * here. You now need to check that yourself.
6430  */
6431 void
6432 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6433                                 GtkTreeViewColumn *column)
6434 {
6435   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6436   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6437
6438   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6439
6440   do_presize_handler (tree_view);
6441   while (validate_rows (tree_view));
6442
6443   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6444 }
6445
6446 /* Drag-and-drop */
6447
6448 static void
6449 set_source_row (GdkDragContext *context,
6450                 GtkTreeModel   *model,
6451                 GtkTreePath    *source_row)
6452 {
6453   g_object_set_data_full (G_OBJECT (context),
6454                           I_("gtk-tree-view-source-row"),
6455                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6456                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6457 }
6458
6459 static GtkTreePath*
6460 get_source_row (GdkDragContext *context)
6461 {
6462   GtkTreeRowReference *ref =
6463     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6464
6465   if (ref)
6466     return gtk_tree_row_reference_get_path (ref);
6467   else
6468     return NULL;
6469 }
6470
6471 typedef struct
6472 {
6473   GtkTreeRowReference *dest_row;
6474   gboolean             path_down_mode;
6475   gboolean             empty_view_drop;
6476   gboolean             drop_append_mode;
6477 }
6478 DestRow;
6479
6480 static void
6481 dest_row_free (gpointer data)
6482 {
6483   DestRow *dr = (DestRow *)data;
6484
6485   gtk_tree_row_reference_free (dr->dest_row);
6486   g_free (dr);
6487 }
6488
6489
6490 static void
6491 set_dest_row (GdkDragContext *context,
6492               GtkTreeModel   *model,
6493               GtkTreePath    *dest_row,
6494               gboolean        path_down_mode,
6495               gboolean        empty_view_drop,
6496               gboolean        drop_append_mode)
6497 {
6498   DestRow *dr;
6499
6500   if (!dest_row)
6501     {
6502       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6503                               NULL, NULL);
6504       return;
6505     }
6506
6507   dr = g_new0 (DestRow, 1);
6508
6509   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6510   dr->path_down_mode = path_down_mode;
6511   dr->empty_view_drop = empty_view_drop;
6512   dr->drop_append_mode = drop_append_mode;
6513
6514   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6515                           dr, (GDestroyNotify) dest_row_free);
6516 }
6517
6518 static GtkTreePath*
6519 get_dest_row (GdkDragContext *context,
6520               gboolean       *path_down_mode)
6521 {
6522   DestRow *dr =
6523     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6524
6525   if (dr)
6526     {
6527       GtkTreePath *path = NULL;
6528
6529       if (path_down_mode)
6530         *path_down_mode = dr->path_down_mode;
6531
6532       if (dr->dest_row)
6533         path = gtk_tree_row_reference_get_path (dr->dest_row);
6534       else if (dr->empty_view_drop)
6535         path = gtk_tree_path_new_from_indices (0, -1);
6536       else
6537         path = NULL;
6538
6539       if (path && dr->drop_append_mode)
6540         gtk_tree_path_next (path);
6541
6542       return path;
6543     }
6544   else
6545     return NULL;
6546 }
6547
6548 /* Get/set whether drag_motion requested the drag data and
6549  * drag_data_received should thus not actually insert the data,
6550  * since the data doesn't result from a drop.
6551  */
6552 static void
6553 set_status_pending (GdkDragContext *context,
6554                     GdkDragAction   suggested_action)
6555 {
6556   g_object_set_data (G_OBJECT (context),
6557                      I_("gtk-tree-view-status-pending"),
6558                      GINT_TO_POINTER (suggested_action));
6559 }
6560
6561 static GdkDragAction
6562 get_status_pending (GdkDragContext *context)
6563 {
6564   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6565                                              "gtk-tree-view-status-pending"));
6566 }
6567
6568 static TreeViewDragInfo*
6569 get_info (GtkTreeView *tree_view)
6570 {
6571   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6572 }
6573
6574 static void
6575 clear_source_info (TreeViewDragInfo *di)
6576 {
6577   if (di->source_target_list)
6578     gtk_target_list_unref (di->source_target_list);
6579
6580   di->source_target_list = NULL;
6581 }
6582
6583 static void
6584 clear_dest_info (TreeViewDragInfo *di)
6585 {
6586   if (di->dest_target_list)
6587     gtk_target_list_unref (di->dest_target_list);
6588
6589   di->dest_target_list = NULL;
6590 }
6591
6592 static void
6593 destroy_info (TreeViewDragInfo *di)
6594 {
6595   clear_source_info (di);
6596   clear_dest_info (di);
6597   g_free (di);
6598 }
6599
6600 static TreeViewDragInfo*
6601 ensure_info (GtkTreeView *tree_view)
6602 {
6603   TreeViewDragInfo *di;
6604
6605   di = get_info (tree_view);
6606
6607   if (di == NULL)
6608     {
6609       di = g_new0 (TreeViewDragInfo, 1);
6610
6611       g_object_set_data_full (G_OBJECT (tree_view),
6612                               I_("gtk-tree-view-drag-info"),
6613                               di,
6614                               (GDestroyNotify) destroy_info);
6615     }
6616
6617   return di;
6618 }
6619
6620 static void
6621 remove_info (GtkTreeView *tree_view)
6622 {
6623   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6624 }
6625
6626 #if 0
6627 static gint
6628 drag_scan_timeout (gpointer data)
6629 {
6630   GtkTreeView *tree_view;
6631   gint x, y;
6632   GdkModifierType state;
6633   GtkTreePath *path = NULL;
6634   GtkTreeViewColumn *column = NULL;
6635   GdkRectangle visible_rect;
6636
6637   GDK_THREADS_ENTER ();
6638
6639   tree_view = GTK_TREE_VIEW (data);
6640
6641   gdk_window_get_pointer (tree_view->priv->bin_window,
6642                           &x, &y, &state);
6643
6644   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6645
6646   /* See if we are near the edge. */
6647   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6648       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6649       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6650       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6651     {
6652       gtk_tree_view_get_path_at_pos (tree_view,
6653                                      tree_view->priv->bin_window,
6654                                      x, y,
6655                                      &path,
6656                                      &column,
6657                                      NULL,
6658                                      NULL);
6659
6660       if (path != NULL)
6661         {
6662           gtk_tree_view_scroll_to_cell (tree_view,
6663                                         path,
6664                                         column,
6665                                         TRUE,
6666                                         0.5, 0.5);
6667
6668           gtk_tree_path_free (path);
6669         }
6670     }
6671
6672   GDK_THREADS_LEAVE ();
6673
6674   return TRUE;
6675 }
6676 #endif /* 0 */
6677
6678 static void
6679 add_scroll_timeout (GtkTreeView *tree_view)
6680 {
6681   if (tree_view->priv->scroll_timeout == 0)
6682     {
6683       tree_view->priv->scroll_timeout =
6684         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6685     }
6686 }
6687
6688 static void
6689 remove_scroll_timeout (GtkTreeView *tree_view)
6690 {
6691   if (tree_view->priv->scroll_timeout != 0)
6692     {
6693       g_source_remove (tree_view->priv->scroll_timeout);
6694       tree_view->priv->scroll_timeout = 0;
6695     }
6696 }
6697
6698 static gboolean
6699 check_model_dnd (GtkTreeModel *model,
6700                  GType         required_iface,
6701                  const gchar  *signal)
6702 {
6703   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6704     {
6705       g_warning ("You must override the default '%s' handler "
6706                  "on GtkTreeView when using models that don't support "
6707                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6708                  "is to connect to '%s' and call "
6709                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6710                  "the default handler from running. Look at the source code "
6711                  "for the default handler in gtktreeview.c to get an idea what "
6712                  "your handler should do. (gtktreeview.c is in the GTK source "
6713                  "code.) If you're using GTK from a language other than C, "
6714                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6715                  signal, g_type_name (required_iface), signal);
6716       return FALSE;
6717     }
6718   else
6719     return TRUE;
6720 }
6721
6722 static void
6723 remove_open_timeout (GtkTreeView *tree_view)
6724 {
6725   if (tree_view->priv->open_dest_timeout != 0)
6726     {
6727       g_source_remove (tree_view->priv->open_dest_timeout);
6728       tree_view->priv->open_dest_timeout = 0;
6729     }
6730 }
6731
6732
6733 static gint
6734 open_row_timeout (gpointer data)
6735 {
6736   GtkTreeView *tree_view = data;
6737   GtkTreePath *dest_path = NULL;
6738   GtkTreeViewDropPosition pos;
6739   gboolean result = FALSE;
6740
6741   gtk_tree_view_get_drag_dest_row (tree_view,
6742                                    &dest_path,
6743                                    &pos);
6744
6745   if (dest_path &&
6746       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6747        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6748     {
6749       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6750       tree_view->priv->open_dest_timeout = 0;
6751
6752       gtk_tree_path_free (dest_path);
6753     }
6754   else
6755     {
6756       if (dest_path)
6757         gtk_tree_path_free (dest_path);
6758
6759       result = TRUE;
6760     }
6761
6762   return result;
6763 }
6764
6765 static gboolean
6766 scroll_row_timeout (gpointer data)
6767 {
6768   GtkTreeView *tree_view = data;
6769
6770   gtk_tree_view_vertical_autoscroll (tree_view);
6771
6772   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6773     gtk_tree_view_update_rubber_band (tree_view);
6774
6775   return TRUE;
6776 }
6777
6778 /* Returns TRUE if event should not be propagated to parent widgets */
6779 static gboolean
6780 set_destination_row (GtkTreeView    *tree_view,
6781                      GdkDragContext *context,
6782                      /* coordinates relative to the widget */
6783                      gint            x,
6784                      gint            y,
6785                      GdkDragAction  *suggested_action,
6786                      GdkAtom        *target)
6787 {
6788   GtkTreePath *path = NULL;
6789   GtkTreeViewDropPosition pos;
6790   GtkTreeViewDropPosition old_pos;
6791   TreeViewDragInfo *di;
6792   GtkWidget *widget;
6793   GtkTreePath *old_dest_path = NULL;
6794   gboolean can_drop = FALSE;
6795
6796   *suggested_action = 0;
6797   *target = GDK_NONE;
6798
6799   widget = GTK_WIDGET (tree_view);
6800
6801   di = get_info (tree_view);
6802
6803   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6804     {
6805       /* someone unset us as a drag dest, note that if
6806        * we return FALSE drag_leave isn't called
6807        */
6808
6809       gtk_tree_view_set_drag_dest_row (tree_view,
6810                                        NULL,
6811                                        GTK_TREE_VIEW_DROP_BEFORE);
6812
6813       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6814       remove_open_timeout (GTK_TREE_VIEW (widget));
6815
6816       return FALSE; /* no longer a drop site */
6817     }
6818
6819   *target = gtk_drag_dest_find_target (widget, context, di->dest_target_list);
6820   if (*target == GDK_NONE)
6821     {
6822       return FALSE;
6823     }
6824
6825   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6826                                           x, y,
6827                                           &path,
6828                                           &pos))
6829     {
6830       gint n_children;
6831       GtkTreeModel *model;
6832
6833       remove_open_timeout (tree_view);
6834
6835       /* the row got dropped on empty space, let's setup a special case
6836        */
6837
6838       if (path)
6839         gtk_tree_path_free (path);
6840
6841       model = gtk_tree_view_get_model (tree_view);
6842
6843       n_children = gtk_tree_model_iter_n_children (model, NULL);
6844       if (n_children)
6845         {
6846           pos = GTK_TREE_VIEW_DROP_AFTER;
6847           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6848         }
6849       else
6850         {
6851           pos = GTK_TREE_VIEW_DROP_BEFORE;
6852           path = gtk_tree_path_new_from_indices (0, -1);
6853         }
6854
6855       can_drop = TRUE;
6856
6857       goto out;
6858     }
6859
6860   g_assert (path);
6861
6862   /* If we left the current row's "open" zone, unset the timeout for
6863    * opening the row
6864    */
6865   gtk_tree_view_get_drag_dest_row (tree_view,
6866                                    &old_dest_path,
6867                                    &old_pos);
6868
6869   if (old_dest_path &&
6870       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6871        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6872          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6873     remove_open_timeout (tree_view);
6874
6875   if (old_dest_path)
6876     gtk_tree_path_free (old_dest_path);
6877
6878   if (TRUE /* FIXME if the location droppable predicate */)
6879     {
6880       can_drop = TRUE;
6881     }
6882
6883 out:
6884   if (can_drop)
6885     {
6886       GtkWidget *source_widget;
6887
6888       *suggested_action = context->suggested_action;
6889       source_widget = gtk_drag_get_source_widget (context);
6890
6891       if (source_widget == widget)
6892         {
6893           /* Default to MOVE, unless the user has
6894            * pressed ctrl or shift to affect available actions
6895            */
6896           if ((context->actions & GDK_ACTION_MOVE) != 0)
6897             *suggested_action = GDK_ACTION_MOVE;
6898         }
6899
6900       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6901                                        path, pos);
6902     }
6903   else
6904     {
6905       /* can't drop here */
6906       remove_open_timeout (tree_view);
6907
6908       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6909                                        NULL,
6910                                        GTK_TREE_VIEW_DROP_BEFORE);
6911     }
6912
6913   if (path)
6914     gtk_tree_path_free (path);
6915
6916   return TRUE;
6917 }
6918
6919 static GtkTreePath*
6920 get_logical_dest_row (GtkTreeView *tree_view,
6921                       gboolean    *path_down_mode,
6922                       gboolean    *drop_append_mode)
6923 {
6924   /* adjust path to point to the row the drop goes in front of */
6925   GtkTreePath *path = NULL;
6926   GtkTreeViewDropPosition pos;
6927
6928   g_return_val_if_fail (path_down_mode != NULL, NULL);
6929   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6930
6931   *path_down_mode = FALSE;
6932   *drop_append_mode = 0;
6933
6934   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6935
6936   if (path == NULL)
6937     return NULL;
6938
6939   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6940     ; /* do nothing */
6941   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6942            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6943     *path_down_mode = TRUE;
6944   else
6945     {
6946       GtkTreeIter iter;
6947       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6948
6949       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6950
6951       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6952           !gtk_tree_model_iter_next (model, &iter))
6953         *drop_append_mode = 1;
6954       else
6955         {
6956           *drop_append_mode = 0;
6957           gtk_tree_path_next (path);
6958         }
6959     }
6960
6961   return path;
6962 }
6963
6964 static gboolean
6965 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
6966                                         GdkEventMotion   *event)
6967 {
6968   GdkDragContext *context;
6969   TreeViewDragInfo *di;
6970   GtkTreePath *path = NULL;
6971   gint button;
6972   gint cell_x, cell_y;
6973   GtkTreeModel *model;
6974   gboolean retval = FALSE;
6975
6976   di = get_info (tree_view);
6977
6978   if (di == NULL || !di->source_set)
6979     goto out;
6980
6981   if (tree_view->priv->pressed_button < 0)
6982     goto out;
6983
6984   if (!gtk_drag_check_threshold (GTK_WIDGET (tree_view),
6985                                  tree_view->priv->press_start_x,
6986                                  tree_view->priv->press_start_y,
6987                                  event->x, event->y))
6988     goto out;
6989
6990   model = gtk_tree_view_get_model (tree_view);
6991
6992   if (model == NULL)
6993     goto out;
6994
6995   button = tree_view->priv->pressed_button;
6996   tree_view->priv->pressed_button = -1;
6997
6998   gtk_tree_view_get_path_at_pos (tree_view,
6999                                  tree_view->priv->press_start_x,
7000                                  tree_view->priv->press_start_y,
7001                                  &path,
7002                                  NULL,
7003                                  &cell_x,
7004                                  &cell_y);
7005
7006   if (path == NULL)
7007     goto out;
7008
7009   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7010       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7011                                            path))
7012     goto out;
7013
7014   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7015     goto out;
7016
7017   /* Now we can begin the drag */
7018
7019   retval = TRUE;
7020
7021   context = gtk_drag_begin (GTK_WIDGET (tree_view),
7022                             di->source_target_list,
7023                             di->source_actions,
7024                             button,
7025                             (GdkEvent*)event);
7026
7027   set_source_row (context, model, path);
7028
7029  out:
7030   if (path)
7031     gtk_tree_path_free (path);
7032
7033   return retval;
7034 }
7035
7036
7037 static void
7038 gtk_tree_view_drag_begin (GtkWidget      *widget,
7039                           GdkDragContext *context)
7040 {
7041   GtkTreeView *tree_view;
7042   GtkTreePath *path = NULL;
7043   gint cell_x, cell_y;
7044   GdkPixmap *row_pix;
7045   TreeViewDragInfo *di;
7046
7047   tree_view = GTK_TREE_VIEW (widget);
7048
7049   /* if the user uses a custom DND source impl, we don't set the icon here */
7050   di = get_info (tree_view);
7051
7052   if (di == NULL || !di->source_set)
7053     return;
7054
7055   gtk_tree_view_get_path_at_pos (tree_view,
7056                                  tree_view->priv->press_start_x,
7057                                  tree_view->priv->press_start_y,
7058                                  &path,
7059                                  NULL,
7060                                  &cell_x,
7061                                  &cell_y);
7062
7063   g_return_if_fail (path != NULL);
7064
7065   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7066                                                 path);
7067
7068   gtk_drag_set_icon_pixmap (context,
7069                             gdk_drawable_get_colormap (row_pix),
7070                             row_pix,
7071                             NULL,
7072                             /* the + 1 is for the black border in the icon */
7073                             tree_view->priv->press_start_x + 1,
7074                             cell_y + 1);
7075
7076   g_object_unref (row_pix);
7077   gtk_tree_path_free (path);
7078 }
7079
7080 static void
7081 gtk_tree_view_drag_end (GtkWidget      *widget,
7082                         GdkDragContext *context)
7083 {
7084   /* do nothing */
7085 }
7086
7087 /* Default signal implementations for the drag signals */
7088 static void
7089 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7090                              GdkDragContext   *context,
7091                              GtkSelectionData *selection_data,
7092                              guint             info,
7093                              guint             time)
7094 {
7095   GtkTreeView *tree_view;
7096   GtkTreeModel *model;
7097   TreeViewDragInfo *di;
7098   GtkTreePath *source_row;
7099
7100   tree_view = GTK_TREE_VIEW (widget);
7101
7102   model = gtk_tree_view_get_model (tree_view);
7103
7104   if (model == NULL)
7105     return;
7106
7107   di = get_info (GTK_TREE_VIEW (widget));
7108
7109   if (di == NULL)
7110     return;
7111
7112   source_row = get_source_row (context);
7113
7114   if (source_row == NULL)
7115     return;
7116
7117   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7118    * any model; for DragSource models there are some other targets
7119    * we also support.
7120    */
7121
7122   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7123       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7124                                           source_row,
7125                                           selection_data))
7126     goto done;
7127
7128   /* If drag_data_get does nothing, try providing row data. */
7129   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7130     {
7131       gtk_tree_set_row_drag_data (selection_data,
7132                                   model,
7133                                   source_row);
7134     }
7135
7136  done:
7137   gtk_tree_path_free (source_row);
7138 }
7139
7140
7141 static void
7142 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7143                                 GdkDragContext *context)
7144 {
7145   TreeViewDragInfo *di;
7146   GtkTreeModel *model;
7147   GtkTreeView *tree_view;
7148   GtkTreePath *source_row;
7149
7150   tree_view = GTK_TREE_VIEW (widget);
7151   model = gtk_tree_view_get_model (tree_view);
7152
7153   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7154     return;
7155
7156   di = get_info (tree_view);
7157
7158   if (di == NULL)
7159     return;
7160
7161   source_row = get_source_row (context);
7162
7163   if (source_row == NULL)
7164     return;
7165
7166   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7167                                          source_row);
7168
7169   gtk_tree_path_free (source_row);
7170
7171   set_source_row (context, NULL, NULL);
7172 }
7173
7174 static void
7175 gtk_tree_view_drag_leave (GtkWidget      *widget,
7176                           GdkDragContext *context,
7177                           guint             time)
7178 {
7179   /* unset any highlight row */
7180   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7181                                    NULL,
7182                                    GTK_TREE_VIEW_DROP_BEFORE);
7183
7184   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7185   remove_open_timeout (GTK_TREE_VIEW (widget));
7186 }
7187
7188
7189 static gboolean
7190 gtk_tree_view_drag_motion (GtkWidget        *widget,
7191                            GdkDragContext   *context,
7192                            /* coordinates relative to the widget */
7193                            gint              x,
7194                            gint              y,
7195                            guint             time)
7196 {
7197   gboolean empty;
7198   GtkTreePath *path = NULL;
7199   GtkTreeViewDropPosition pos;
7200   GtkTreeView *tree_view;
7201   GdkDragAction suggested_action = 0;
7202   GdkAtom target;
7203
7204   tree_view = GTK_TREE_VIEW (widget);
7205
7206   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7207     return FALSE;
7208
7209   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7210
7211   /* we only know this *after* set_desination_row */
7212   empty = tree_view->priv->empty_view_drop;
7213
7214   if (path == NULL && !empty)
7215     {
7216       /* Can't drop here. */
7217       gdk_drag_status (context, 0, time);
7218     }
7219   else
7220     {
7221       if (tree_view->priv->open_dest_timeout == 0 &&
7222           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7223            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7224         {
7225           tree_view->priv->open_dest_timeout =
7226             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7227         }
7228       else
7229         {
7230           add_scroll_timeout (tree_view);
7231         }
7232
7233       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7234         {
7235           /* Request data so we can use the source row when
7236            * determining whether to accept the drop
7237            */
7238           set_status_pending (context, suggested_action);
7239           gtk_drag_get_data (widget, context, target, time);
7240         }
7241       else
7242         {
7243           set_status_pending (context, 0);
7244           gdk_drag_status (context, suggested_action, time);
7245         }
7246     }
7247
7248   if (path)
7249     gtk_tree_path_free (path);
7250
7251   return TRUE;
7252 }
7253
7254
7255 static gboolean
7256 gtk_tree_view_drag_drop (GtkWidget        *widget,
7257                          GdkDragContext   *context,
7258                          /* coordinates relative to the widget */
7259                          gint              x,
7260                          gint              y,
7261                          guint             time)
7262 {
7263   GtkTreeView *tree_view;
7264   GtkTreePath *path;
7265   GdkDragAction suggested_action = 0;
7266   GdkAtom target = GDK_NONE;
7267   TreeViewDragInfo *di;
7268   GtkTreeModel *model;
7269   gboolean path_down_mode;
7270   gboolean drop_append_mode;
7271
7272   tree_view = GTK_TREE_VIEW (widget);
7273
7274   model = gtk_tree_view_get_model (tree_view);
7275
7276   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7277   remove_open_timeout (GTK_TREE_VIEW (widget));
7278
7279   di = get_info (tree_view);
7280
7281   if (di == NULL)
7282     return FALSE;
7283
7284   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7285     return FALSE;
7286
7287   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7288     return FALSE;
7289
7290   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7291
7292   if (target != GDK_NONE && path != NULL)
7293     {
7294       /* in case a motion had requested drag data, change things so we
7295        * treat drag data receives as a drop.
7296        */
7297       set_status_pending (context, 0);
7298       set_dest_row (context, model, path,
7299                     path_down_mode, tree_view->priv->empty_view_drop,
7300                     drop_append_mode);
7301     }
7302
7303   if (path)
7304     gtk_tree_path_free (path);
7305
7306   /* Unset this thing */
7307   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7308                                    NULL,
7309                                    GTK_TREE_VIEW_DROP_BEFORE);
7310
7311   if (target != GDK_NONE)
7312     {
7313       gtk_drag_get_data (widget, context, target, time);
7314       return TRUE;
7315     }
7316   else
7317     return FALSE;
7318 }
7319
7320 static void
7321 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7322                                   GdkDragContext   *context,
7323                                   /* coordinates relative to the widget */
7324                                   gint              x,
7325                                   gint              y,
7326                                   GtkSelectionData *selection_data,
7327                                   guint             info,
7328                                   guint             time)
7329 {
7330   GtkTreePath *path;
7331   TreeViewDragInfo *di;
7332   gboolean accepted = FALSE;
7333   GtkTreeModel *model;
7334   GtkTreeView *tree_view;
7335   GtkTreePath *dest_row;
7336   GdkDragAction suggested_action;
7337   gboolean path_down_mode;
7338   gboolean drop_append_mode;
7339
7340   tree_view = GTK_TREE_VIEW (widget);
7341
7342   model = gtk_tree_view_get_model (tree_view);
7343
7344   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7345     return;
7346
7347   di = get_info (tree_view);
7348
7349   if (di == NULL)
7350     return;
7351
7352   suggested_action = get_status_pending (context);
7353
7354   if (suggested_action)
7355     {
7356       /* We are getting this data due to a request in drag_motion,
7357        * rather than due to a request in drag_drop, so we are just
7358        * supposed to call drag_status, not actually paste in the
7359        * data.
7360        */
7361       path = get_logical_dest_row (tree_view, &path_down_mode,
7362                                    &drop_append_mode);
7363
7364       if (path == NULL)
7365         suggested_action = 0;
7366       else if (path_down_mode)
7367         gtk_tree_path_down (path);
7368
7369       if (suggested_action)
7370         {
7371           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7372                                                      path,
7373                                                      selection_data))
7374             {
7375               if (path_down_mode)
7376                 {
7377                   path_down_mode = FALSE;
7378                   gtk_tree_path_up (path);
7379
7380                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7381                                                              path,
7382                                                              selection_data))
7383                     suggested_action = 0;
7384                 }
7385               else
7386                 suggested_action = 0;
7387             }
7388         }
7389
7390       gdk_drag_status (context, suggested_action, time);
7391
7392       if (path)
7393         gtk_tree_path_free (path);
7394
7395       /* If you can't drop, remove user drop indicator until the next motion */
7396       if (suggested_action == 0)
7397         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7398                                          NULL,
7399                                          GTK_TREE_VIEW_DROP_BEFORE);
7400
7401       return;
7402     }
7403
7404   dest_row = get_dest_row (context, &path_down_mode);
7405
7406   if (dest_row == NULL)
7407     return;
7408
7409   if (selection_data->length >= 0)
7410     {
7411       if (path_down_mode)
7412         {
7413           gtk_tree_path_down (dest_row);
7414           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7415                                                      dest_row, selection_data))
7416             gtk_tree_path_up (dest_row);
7417         }
7418     }
7419
7420   if (selection_data->length >= 0)
7421     {
7422       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7423                                                  dest_row,
7424                                                  selection_data))
7425         accepted = TRUE;
7426     }
7427
7428   gtk_drag_finish (context,
7429                    accepted,
7430                    (context->action == GDK_ACTION_MOVE),
7431                    time);
7432
7433   if (gtk_tree_path_get_depth (dest_row) == 1
7434       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7435     {
7436       /* special special case drag to "0", scroll to first item */
7437       if (!tree_view->priv->scroll_to_path)
7438         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7439     }
7440
7441   gtk_tree_path_free (dest_row);
7442
7443   /* drop dest_row */
7444   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7445 }
7446
7447
7448
7449 /* GtkContainer Methods
7450  */
7451
7452
7453 static void
7454 gtk_tree_view_remove (GtkContainer *container,
7455                       GtkWidget    *widget)
7456 {
7457   GtkTreeView *tree_view;
7458   GtkTreeViewChild *child = NULL;
7459   GList *tmp_list;
7460
7461   g_return_if_fail (GTK_IS_TREE_VIEW (container));
7462
7463   tree_view = GTK_TREE_VIEW (container);
7464
7465   tmp_list = tree_view->priv->children;
7466   while (tmp_list)
7467     {
7468       child = tmp_list->data;
7469       if (child->widget == widget)
7470         {
7471           gtk_widget_unparent (widget);
7472
7473           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7474           g_list_free_1 (tmp_list);
7475           g_free (child);
7476           return;
7477         }
7478
7479       tmp_list = tmp_list->next;
7480     }
7481
7482   tmp_list = tree_view->priv->columns;
7483
7484   while (tmp_list)
7485     {
7486       GtkTreeViewColumn *column;
7487       column = tmp_list->data;
7488       if (column->button == widget)
7489         {
7490           gtk_widget_unparent (widget);
7491           return;
7492         }
7493       tmp_list = tmp_list->next;
7494     }
7495 }
7496
7497 static void
7498 gtk_tree_view_forall (GtkContainer *container,
7499                       gboolean      include_internals,
7500                       GtkCallback   callback,
7501                       gpointer      callback_data)
7502 {
7503   GtkTreeView *tree_view;
7504   GtkTreeViewChild *child = NULL;
7505   GtkTreeViewColumn *column;
7506   GList *tmp_list;
7507
7508   g_return_if_fail (GTK_IS_TREE_VIEW (container));
7509   g_return_if_fail (callback != NULL);
7510
7511   tree_view = GTK_TREE_VIEW (container);
7512
7513   tmp_list = tree_view->priv->children;
7514   while (tmp_list)
7515     {
7516       child = tmp_list->data;
7517       tmp_list = tmp_list->next;
7518
7519       (* callback) (child->widget, callback_data);
7520     }
7521   if (include_internals == FALSE)
7522     return;
7523
7524   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7525     {
7526       column = tmp_list->data;
7527
7528       if (column->button)
7529         (* callback) (column->button, callback_data);
7530     }
7531 }
7532
7533 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7534  * cells. If so we draw one big row-spanning focus rectangle.
7535  */
7536 static gboolean
7537 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7538 {
7539   GList *list;
7540
7541   for (list = tree_view->priv->columns; list; list = list->next)
7542     {
7543       if (!((GtkTreeViewColumn *)list->data)->visible)
7544         continue;
7545       if (_gtk_tree_view_column_count_special_cells (list->data))
7546         return TRUE;
7547     }
7548
7549   return FALSE;
7550 }
7551
7552 static void
7553 column_sizing_notify (GObject    *object,
7554                       GParamSpec *pspec,
7555                       gpointer    data)
7556 {
7557   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7558
7559   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7560     /* disable fixed height mode */
7561     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7562 }
7563
7564 /**
7565  * gtk_tree_view_set_fixed_height_mode:
7566  * @tree_view: a #GtkTreeView
7567  * @enable: %TRUE to enable fixed height mode
7568  *
7569  * Enables or disables the fixed height mode of @tree_view.
7570  * Fixed height mode speeds up #GtkTreeView by assuming that all
7571  * rows have the same height.
7572  * Only enable this option if all rows are the same height and all
7573  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7574  *
7575  * Since: 2.6
7576  **/
7577 void
7578 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7579                                      gboolean     enable)
7580 {
7581   GList *l;
7582
7583   enable = enable != FALSE;
7584
7585   if (enable == tree_view->priv->fixed_height_mode)
7586     return;
7587
7588   if (!enable)
7589     {
7590       tree_view->priv->fixed_height_mode = 0;
7591       tree_view->priv->fixed_height = -1;
7592
7593       /* force a revalidation */
7594       install_presize_handler (tree_view);
7595     }
7596   else
7597     {
7598       /* make sure all columns are of type FIXED */
7599       for (l = tree_view->priv->columns; l; l = l->next)
7600         {
7601           GtkTreeViewColumn *c = l->data;
7602
7603           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7604         }
7605
7606       /* yes, we really have to do this is in a separate loop */
7607       for (l = tree_view->priv->columns; l; l = l->next)
7608         g_signal_connect (l->data, "notify::sizing",
7609                           G_CALLBACK (column_sizing_notify), tree_view);
7610
7611       tree_view->priv->fixed_height_mode = 1;
7612       tree_view->priv->fixed_height = -1;
7613
7614       if (tree_view->priv->tree)
7615         initialize_fixed_height_mode (tree_view);
7616     }
7617
7618   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7619 }
7620
7621 /**
7622  * gtk_tree_view_get_fixed_height_mode:
7623  * @tree_view: a #GtkTreeView
7624  *
7625  * Returns whether fixed height mode is turned on for @tree_view.
7626  *
7627  * Return value: %TRUE if @tree_view is in fixed height mode
7628  *
7629  * Since: 2.6
7630  **/
7631 gboolean
7632 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7633 {
7634   return tree_view->priv->fixed_height_mode;
7635 }
7636
7637 /* Returns TRUE if the focus is within the headers, after the focus operation is
7638  * done
7639  */
7640 static gboolean
7641 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7642                             GtkDirectionType  dir,
7643                             gboolean          clamp_column_visible)
7644 {
7645   GtkWidget *focus_child;
7646
7647   GList *last_column, *first_column;
7648   GList *tmp_list;
7649   gboolean rtl;
7650
7651   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7652     return FALSE;
7653
7654   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7655
7656   first_column = tree_view->priv->columns;
7657   while (first_column)
7658     {
7659       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7660           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7661           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7662            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7663         break;
7664       first_column = first_column->next;
7665     }
7666
7667   /* No headers are visible, or are focusable.  We can't focus in or out.
7668    */
7669   if (first_column == NULL)
7670     return FALSE;
7671
7672   last_column = g_list_last (tree_view->priv->columns);
7673   while (last_column)
7674     {
7675       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7676           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7677           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7678            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7679         break;
7680       last_column = last_column->prev;
7681     }
7682
7683
7684   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7685
7686   switch (dir)
7687     {
7688     case GTK_DIR_TAB_BACKWARD:
7689     case GTK_DIR_TAB_FORWARD:
7690     case GTK_DIR_UP:
7691     case GTK_DIR_DOWN:
7692       if (focus_child == NULL)
7693         {
7694           if (tree_view->priv->focus_column != NULL)
7695             focus_child = tree_view->priv->focus_column->button;
7696           else
7697             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7698           gtk_widget_grab_focus (focus_child);
7699           break;
7700         }
7701       return FALSE;
7702
7703     case GTK_DIR_LEFT:
7704     case GTK_DIR_RIGHT:
7705       if (focus_child == NULL)
7706         {
7707           if (tree_view->priv->focus_column != NULL)
7708             focus_child = tree_view->priv->focus_column->button;
7709           else if (dir == GTK_DIR_LEFT)
7710             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7711           else
7712             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7713           gtk_widget_grab_focus (focus_child);
7714           break;
7715         }
7716
7717       if (gtk_widget_child_focus (focus_child, dir))
7718         {
7719           /* The focus moves inside the button. */
7720           /* This is probably a great example of bad UI */
7721           break;
7722         }
7723
7724       /* We need to move the focus among the row of buttons. */
7725       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7726         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7727           break;
7728
7729       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7730           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7731         {
7732           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7733           break;
7734         }
7735
7736       while (tmp_list)
7737         {
7738           GtkTreeViewColumn *column;
7739
7740           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7741             tmp_list = tmp_list->next;
7742           else
7743             tmp_list = tmp_list->prev;
7744
7745           if (tmp_list == NULL)
7746             {
7747               g_warning ("Internal button not found");
7748               break;
7749             }
7750           column = tmp_list->data;
7751           if (column->button &&
7752               column->visible &&
7753               GTK_WIDGET_CAN_FOCUS (column->button))
7754             {
7755               focus_child = column->button;
7756               gtk_widget_grab_focus (column->button);
7757               break;
7758             }
7759         }
7760       break;
7761     default:
7762       g_assert_not_reached ();
7763       break;
7764     }
7765
7766   /* if focus child is non-null, we assume it's been set to the current focus child
7767    */
7768   if (focus_child)
7769     {
7770       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7771         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7772           {
7773             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7774             break;
7775           }
7776
7777       if (clamp_column_visible)
7778         {
7779           gtk_tree_view_clamp_column_visible (tree_view,
7780                                               tree_view->priv->focus_column,
7781                                               FALSE);
7782         }
7783     }
7784
7785   return (focus_child != NULL);
7786 }
7787
7788 /* This function returns in 'path' the first focusable path, if the given path
7789  * is already focusable, it's the returned one.
7790  */
7791 static gboolean
7792 search_first_focusable_path (GtkTreeView  *tree_view,
7793                              GtkTreePath **path,
7794                              gboolean      search_forward,
7795                              GtkRBTree   **new_tree,
7796                              GtkRBNode   **new_node)
7797 {
7798   GtkRBTree *tree = NULL;
7799   GtkRBNode *node = NULL;
7800
7801   if (!path || !*path)
7802     return FALSE;
7803
7804   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7805
7806   if (!tree || !node)
7807     return FALSE;
7808
7809   while (node && row_is_separator (tree_view, NULL, *path))
7810     {
7811       if (search_forward)
7812         _gtk_rbtree_next_full (tree, node, &tree, &node);
7813       else
7814         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7815
7816       if (*path)
7817         gtk_tree_path_free (*path);
7818
7819       if (node)
7820         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7821       else
7822         *path = NULL;
7823     }
7824
7825   if (new_tree)
7826     *new_tree = tree;
7827
7828   if (new_node)
7829     *new_node = node;
7830
7831   return (*path != NULL);
7832 }
7833
7834 static gint
7835 gtk_tree_view_focus (GtkWidget        *widget,
7836                      GtkDirectionType  direction)
7837 {
7838   GtkTreeView *tree_view;
7839   GtkWidget *focus_child;
7840   GtkContainer *container;
7841
7842   g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
7843   g_return_val_if_fail (GTK_WIDGET_VISIBLE (widget), FALSE);
7844
7845   container = GTK_CONTAINER (widget);
7846   tree_view = GTK_TREE_VIEW (widget);
7847
7848   if (!GTK_WIDGET_IS_SENSITIVE (container))
7849     return FALSE;
7850
7851   focus_child = container->focus_child;
7852
7853   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7854   /* Case 1.  Headers currently have focus. */
7855   if (focus_child)
7856     {
7857       switch (direction)
7858         {
7859         case GTK_DIR_LEFT:
7860         case GTK_DIR_RIGHT:
7861           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7862           return TRUE;
7863         case GTK_DIR_TAB_BACKWARD:
7864         case GTK_DIR_UP:
7865           return FALSE;
7866         case GTK_DIR_TAB_FORWARD:
7867         case GTK_DIR_DOWN:
7868           gtk_widget_grab_focus (widget);
7869           return TRUE;
7870         default:
7871           g_assert_not_reached ();
7872           return FALSE;
7873         }
7874     }
7875
7876   /* Case 2. We don't have focus at all. */
7877   if (!GTK_WIDGET_HAS_FOCUS (container))
7878     {
7879       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7880         gtk_widget_grab_focus (widget);
7881       return TRUE;
7882     }
7883
7884   /* Case 3. We have focus already. */
7885   if (direction == GTK_DIR_TAB_BACKWARD)
7886     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7887   else if (direction == GTK_DIR_TAB_FORWARD)
7888     return FALSE;
7889
7890   /* Other directions caught by the keybindings */
7891   gtk_widget_grab_focus (widget);
7892   return TRUE;
7893 }
7894
7895 static void
7896 gtk_tree_view_grab_focus (GtkWidget *widget)
7897 {
7898   (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus) (widget);
7899
7900   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7901 }
7902
7903 static void
7904 gtk_tree_view_style_set (GtkWidget *widget,
7905                          GtkStyle *previous_style)
7906 {
7907   GtkTreeView *tree_view;
7908   GList *list;
7909   GtkTreeViewColumn *column;
7910
7911   g_return_if_fail (GTK_IS_TREE_VIEW (widget));
7912
7913   tree_view = GTK_TREE_VIEW (widget);
7914
7915   if (GTK_WIDGET_REALIZED (widget))
7916     {
7917       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7918       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7919       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7920
7921       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7922       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7923     }
7924
7925   gtk_widget_style_get (widget,
7926                         "expander-size", &tree_view->priv->expander_size,
7927                         NULL);
7928   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7929
7930   for (list = tree_view->priv->columns; list; list = list->next)
7931     {
7932       column = list->data;
7933       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7934     }
7935
7936   tree_view->priv->fixed_height = -1;
7937   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7938
7939   gtk_widget_queue_resize (widget);
7940 }
7941
7942
7943 static void
7944 gtk_tree_view_set_focus_child (GtkContainer *container,
7945                                GtkWidget    *child)
7946 {
7947   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7948   GList *list;
7949
7950   for (list = tree_view->priv->columns; list; list = list->next)
7951     {
7952       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7953         {
7954           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7955           break;
7956         }
7957     }
7958
7959   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7960 }
7961
7962 static void
7963 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7964                                GtkAdjustment *hadj,
7965                                GtkAdjustment *vadj)
7966 {
7967   gboolean need_adjust = FALSE;
7968
7969   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
7970
7971   if (hadj)
7972     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
7973   else
7974     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7975   if (vadj)
7976     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
7977   else
7978     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7979
7980   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
7981     {
7982       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
7983                                             gtk_tree_view_adjustment_changed,
7984                                             tree_view);
7985       g_object_unref (tree_view->priv->hadjustment);
7986     }
7987
7988   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
7989     {
7990       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
7991                                             gtk_tree_view_adjustment_changed,
7992                                             tree_view);
7993       g_object_unref (tree_view->priv->vadjustment);
7994     }
7995
7996   if (tree_view->priv->hadjustment != hadj)
7997     {
7998       tree_view->priv->hadjustment = hadj;
7999       g_object_ref_sink (tree_view->priv->hadjustment);
8000
8001       g_signal_connect (tree_view->priv->hadjustment, "value_changed",
8002                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8003                         tree_view);
8004       need_adjust = TRUE;
8005     }
8006
8007   if (tree_view->priv->vadjustment != vadj)
8008     {
8009       tree_view->priv->vadjustment = vadj;
8010       g_object_ref_sink (tree_view->priv->vadjustment);
8011
8012       g_signal_connect (tree_view->priv->vadjustment, "value_changed",
8013                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8014                         tree_view);
8015       need_adjust = TRUE;
8016     }
8017
8018   if (need_adjust)
8019     gtk_tree_view_adjustment_changed (NULL, tree_view);
8020 }
8021
8022
8023 static gboolean
8024 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8025                                 GtkMovementStep    step,
8026                                 gint               count)
8027 {
8028   GdkModifierType state;
8029
8030   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8031   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8032                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8033                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8034                         step == GTK_MOVEMENT_PAGES ||
8035                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8036
8037   if (tree_view->priv->tree == NULL)
8038     return FALSE;
8039   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8040     return FALSE;
8041
8042   gtk_tree_view_stop_editing (tree_view, FALSE);
8043   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8044   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8045
8046   if (gtk_get_current_event_state (&state))
8047     {
8048       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8049         tree_view->priv->ctrl_pressed = TRUE;
8050       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8051         tree_view->priv->shift_pressed = TRUE;
8052     }
8053   /* else we assume not pressed */
8054
8055   switch (step)
8056     {
8057       /* currently we make no distinction.  When we go bi-di, we need to */
8058     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8059     case GTK_MOVEMENT_VISUAL_POSITIONS:
8060       gtk_tree_view_move_cursor_left_right (tree_view, count);
8061       break;
8062     case GTK_MOVEMENT_DISPLAY_LINES:
8063       gtk_tree_view_move_cursor_up_down (tree_view, count);
8064       break;
8065     case GTK_MOVEMENT_PAGES:
8066       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8067       break;
8068     case GTK_MOVEMENT_BUFFER_ENDS:
8069       gtk_tree_view_move_cursor_start_end (tree_view, count);
8070       break;
8071     default:
8072       g_assert_not_reached ();
8073     }
8074
8075   tree_view->priv->ctrl_pressed = FALSE;
8076   tree_view->priv->shift_pressed = FALSE;
8077
8078   return TRUE;
8079 }
8080
8081 static void
8082 gtk_tree_view_put (GtkTreeView *tree_view,
8083                    GtkWidget   *child_widget,
8084                    /* in tree coordinates */
8085                    gint         x,
8086                    gint         y,
8087                    gint         width,
8088                    gint         height)
8089 {
8090   GtkTreeViewChild *child;
8091
8092   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8093   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8094
8095   child = g_new (GtkTreeViewChild, 1);
8096
8097   child->widget = child_widget;
8098   child->x = x;
8099   child->y = y;
8100   child->width = width;
8101   child->height = height;
8102
8103   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8104
8105   if (GTK_WIDGET_REALIZED (tree_view))
8106     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8107
8108   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8109 }
8110
8111 void
8112 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8113                                   GtkWidget   *widget,
8114                                   /* in tree coordinates */
8115                                   gint         x,
8116                                   gint         y,
8117                                   gint         width,
8118                                   gint         height)
8119 {
8120   GtkTreeViewChild *child = NULL;
8121   GList *list;
8122   GdkRectangle allocation;
8123
8124   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8125   g_return_if_fail (GTK_IS_WIDGET (widget));
8126
8127   for (list = tree_view->priv->children; list; list = list->next)
8128     {
8129       if (((GtkTreeViewChild *)list->data)->widget == widget)
8130         {
8131           child = list->data;
8132           break;
8133         }
8134     }
8135   if (child == NULL)
8136     return;
8137
8138   allocation.x = child->x = x;
8139   allocation.y = child->y = y;
8140   allocation.width = child->width = width;
8141   allocation.height = child->height = height;
8142
8143   if (GTK_WIDGET_REALIZED (widget))
8144     gtk_widget_size_allocate (widget, &allocation);
8145 }
8146
8147
8148 /* TreeModel Callbacks
8149  */
8150
8151 static void
8152 gtk_tree_view_row_changed (GtkTreeModel *model,
8153                            GtkTreePath  *path,
8154                            GtkTreeIter  *iter,
8155                            gpointer      data)
8156 {
8157   GtkTreeView *tree_view = (GtkTreeView *)data;
8158   GtkRBTree *tree;
8159   GtkRBNode *node;
8160   gboolean free_path = FALSE;
8161   GList *list;
8162   GtkTreePath *cursor_path;
8163
8164   g_return_if_fail (path != NULL || iter != NULL);
8165
8166   if (tree_view->priv->cursor != NULL)
8167     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8168   else
8169     cursor_path = NULL;
8170
8171   if (tree_view->priv->edited_column &&
8172       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8173     gtk_tree_view_stop_editing (tree_view, TRUE);
8174
8175   if (cursor_path != NULL)
8176     gtk_tree_path_free (cursor_path);
8177
8178   if (path == NULL)
8179     {
8180       path = gtk_tree_model_get_path (model, iter);
8181       free_path = TRUE;
8182     }
8183   else if (iter == NULL)
8184     gtk_tree_model_get_iter (model, iter, path);
8185
8186   if (_gtk_tree_view_find_node (tree_view,
8187                                 path,
8188                                 &tree,
8189                                 &node))
8190     /* We aren't actually showing the node */
8191     goto done;
8192
8193   if (tree == NULL)
8194     goto done;
8195
8196   if (tree_view->priv->fixed_height_mode
8197       && tree_view->priv->fixed_height >= 0)
8198     {
8199       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8200       if (GTK_WIDGET_REALIZED (tree_view))
8201         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8202     }
8203   else
8204     {
8205       _gtk_rbtree_node_mark_invalid (tree, node);
8206       for (list = tree_view->priv->columns; list; list = list->next)
8207         {
8208           GtkTreeViewColumn *column;
8209
8210           column = list->data;
8211           if (! column->visible)
8212             continue;
8213
8214           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8215             {
8216               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8217             }
8218         }
8219     }
8220
8221  done:
8222   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8223     install_presize_handler (tree_view);
8224   if (free_path)
8225     gtk_tree_path_free (path);
8226 }
8227
8228 static void
8229 gtk_tree_view_row_inserted (GtkTreeModel *model,
8230                             GtkTreePath  *path,
8231                             GtkTreeIter  *iter,
8232                             gpointer      data)
8233 {
8234   GtkTreeView *tree_view = (GtkTreeView *) data;
8235   gint *indices;
8236   GtkRBTree *tmptree, *tree;
8237   GtkRBNode *tmpnode = NULL;
8238   gint depth;
8239   gint i = 0;
8240   gint height;
8241   gboolean free_path = FALSE;
8242   gboolean node_visible = TRUE;
8243
8244   g_return_if_fail (path != NULL || iter != NULL);
8245
8246   if (tree_view->priv->fixed_height_mode
8247       && tree_view->priv->fixed_height >= 0)
8248     height = tree_view->priv->fixed_height;
8249   else
8250     height = 0;
8251
8252   if (path == NULL)
8253     {
8254       path = gtk_tree_model_get_path (model, iter);
8255       free_path = TRUE;
8256     }
8257   else if (iter == NULL)
8258     gtk_tree_model_get_iter (model, iter, path);
8259
8260   if (tree_view->priv->tree == NULL)
8261     tree_view->priv->tree = _gtk_rbtree_new ();
8262
8263   tmptree = tree = tree_view->priv->tree;
8264
8265   /* Update all row-references */
8266   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8267   depth = gtk_tree_path_get_depth (path);
8268   indices = gtk_tree_path_get_indices (path);
8269
8270   /* First, find the parent tree */
8271   while (i < depth - 1)
8272     {
8273       if (tmptree == NULL)
8274         {
8275           /* We aren't showing the node */
8276           node_visible = FALSE;
8277           goto done;
8278         }
8279
8280       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8281       if (tmpnode == NULL)
8282         {
8283           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8284                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8285                      "before the parent was inserted.");
8286           goto done;
8287         }
8288       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8289         {
8290           /* FIXME enforce correct behavior on model, probably */
8291           /* In theory, the model should have emitted has_child_toggled here.  We
8292            * try to catch it anyway, just to be safe, in case the model hasn't.
8293            */
8294           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8295                                                            tree,
8296                                                            tmpnode);
8297           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8298           gtk_tree_path_free (tmppath);
8299           goto done;
8300         }
8301
8302       tmptree = tmpnode->children;
8303       tree = tmptree;
8304       i++;
8305     }
8306
8307   if (tree == NULL)
8308     {
8309       node_visible = FALSE;
8310       goto done;
8311     }
8312
8313   /* ref the node */
8314   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8315   if (indices[depth - 1] == 0)
8316     {
8317       tmpnode = _gtk_rbtree_find_count (tree, 1);
8318       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8319     }
8320   else
8321     {
8322       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8323       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8324     }
8325
8326  done:
8327   if (height > 0)
8328     {
8329       if (tree)
8330         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8331
8332       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8333         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8334       else
8335         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8336     }
8337   else
8338     install_presize_handler (tree_view);
8339   if (free_path)
8340     gtk_tree_path_free (path);
8341 }
8342
8343 static void
8344 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8345                                      GtkTreePath  *path,
8346                                      GtkTreeIter  *iter,
8347                                      gpointer      data)
8348 {
8349   GtkTreeView *tree_view = (GtkTreeView *)data;
8350   GtkTreeIter real_iter;
8351   gboolean has_child;
8352   GtkRBTree *tree;
8353   GtkRBNode *node;
8354   gboolean free_path = FALSE;
8355
8356   g_return_if_fail (path != NULL || iter != NULL);
8357
8358   if (iter)
8359     real_iter = *iter;
8360
8361   if (path == NULL)
8362     {
8363       path = gtk_tree_model_get_path (model, iter);
8364       free_path = TRUE;
8365     }
8366   else if (iter == NULL)
8367     gtk_tree_model_get_iter (model, &real_iter, path);
8368
8369   if (_gtk_tree_view_find_node (tree_view,
8370                                 path,
8371                                 &tree,
8372                                 &node))
8373     /* We aren't actually showing the node */
8374     goto done;
8375
8376   if (tree == NULL)
8377     goto done;
8378
8379   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8380   /* Sanity check.
8381    */
8382   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8383     goto done;
8384
8385   if (has_child)
8386     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8387   else
8388     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8389
8390   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8391     {
8392       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8393       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8394         {
8395           GList *list;
8396
8397           for (list = tree_view->priv->columns; list; list = list->next)
8398             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8399               {
8400                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8401                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8402                 break;
8403               }
8404         }
8405       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8406     }
8407   else
8408     {
8409       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8410     }
8411
8412  done:
8413   if (free_path)
8414     gtk_tree_path_free (path);
8415 }
8416
8417 static void
8418 count_children_helper (GtkRBTree *tree,
8419                        GtkRBNode *node,
8420                        gpointer   data)
8421 {
8422   if (node->children)
8423     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8424   (*((gint *)data))++;
8425 }
8426
8427 static void
8428 check_selection_helper (GtkRBTree *tree,
8429                         GtkRBNode *node,
8430                         gpointer   data)
8431 {
8432   gint *value = (gint *)data;
8433
8434   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8435
8436   if (node->children && !*value)
8437     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8438 }
8439
8440 static void
8441 gtk_tree_view_row_deleted (GtkTreeModel *model,
8442                            GtkTreePath  *path,
8443                            gpointer      data)
8444 {
8445   GtkTreeView *tree_view = (GtkTreeView *)data;
8446   GtkRBTree *tree;
8447   GtkRBNode *node;
8448   GList *list;
8449   gint selection_changed = FALSE;
8450
8451   g_return_if_fail (path != NULL);
8452
8453   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8454
8455   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8456     return;
8457
8458   if (tree == NULL)
8459     return;
8460
8461   /* check if the selection has been changed */
8462   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8463                         check_selection_helper, &selection_changed);
8464
8465   for (list = tree_view->priv->columns; list; list = list->next)
8466     if (((GtkTreeViewColumn *)list->data)->visible &&
8467         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8468       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8469
8470   /* Ensure we don't have a dangling pointer to a dead node */
8471   ensure_unprelighted (tree_view);
8472
8473   /* Cancel editting if we've started */
8474   gtk_tree_view_stop_editing (tree_view, TRUE);
8475
8476   /* If we have a node expanded/collapsed timeout, remove it */
8477   if (tree_view->priv->expand_collapse_timeout != 0)
8478     {
8479       g_source_remove (tree_view->priv->expand_collapse_timeout);
8480       tree_view->priv->expand_collapse_timeout = 0;
8481
8482       /* Reset node */
8483       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
8484       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
8485       tree_view->priv->expanded_collapsed_node = NULL;
8486     }
8487
8488   if (tree_view->priv->destroy_count_func)
8489     {
8490       gint child_count = 0;
8491       if (node->children)
8492         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8493       (* tree_view->priv->destroy_count_func) (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8494     }
8495
8496   if (tree->root->count == 1)
8497     {
8498       if (tree_view->priv->tree == tree)
8499         tree_view->priv->tree = NULL;
8500
8501       _gtk_rbtree_remove (tree);
8502     }
8503   else
8504     {
8505       _gtk_rbtree_remove_node (tree, node);
8506     }
8507
8508   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8509     {
8510       gtk_tree_row_reference_free (tree_view->priv->top_row);
8511       tree_view->priv->top_row = NULL;
8512     }
8513
8514   install_scroll_sync_handler (tree_view);
8515
8516   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8517
8518   if (selection_changed)
8519     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8520 }
8521
8522 static void
8523 cancel_arrow_animation (GtkTreeView *tree_view)
8524 {
8525   if (tree_view->priv->expand_collapse_timeout)
8526     {
8527       while (do_expand_collapse (tree_view));
8528
8529       g_source_remove (tree_view->priv->expand_collapse_timeout);
8530       tree_view->priv->expand_collapse_timeout = 0;
8531     }
8532 }
8533
8534 static void
8535 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8536                               GtkTreePath  *parent,
8537                               GtkTreeIter  *iter,
8538                               gint         *new_order,
8539                               gpointer      data)
8540 {
8541   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8542   GtkRBTree *tree;
8543   GtkRBNode *node;
8544   gint len;
8545
8546   len = gtk_tree_model_iter_n_children (model, iter);
8547
8548   if (len < 2)
8549     return;
8550
8551   gtk_tree_row_reference_reordered (G_OBJECT (data),
8552                                     parent,
8553                                     iter,
8554                                     new_order);
8555
8556   if (_gtk_tree_view_find_node (tree_view,
8557                                 parent,
8558                                 &tree,
8559                                 &node))
8560     return;
8561
8562   /* We need to special case the parent path */
8563   if (tree == NULL)
8564     tree = tree_view->priv->tree;
8565   else
8566     tree = node->children;
8567
8568   if (tree == NULL)
8569     return;
8570
8571   if (tree_view->priv->edited_column)
8572     gtk_tree_view_stop_editing (tree_view, TRUE);
8573
8574   /* we need to be unprelighted */
8575   ensure_unprelighted (tree_view);
8576
8577   /* clear the timeout */
8578   cancel_arrow_animation (tree_view);
8579
8580   _gtk_rbtree_reorder (tree, new_order, len);
8581
8582   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8583
8584   gtk_tree_view_dy_to_top_row (tree_view);
8585 }
8586
8587
8588 /* Internal tree functions
8589  */
8590
8591
8592 static void
8593 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8594                                      GtkRBTree         *tree,
8595                                      GtkTreeViewColumn *column,
8596                                      gint              *x1,
8597                                      gint              *x2)
8598 {
8599   GtkTreeViewColumn *tmp_column = NULL;
8600   gint total_width;
8601   GList *list;
8602   gboolean rtl;
8603
8604   if (x1)
8605     *x1 = 0;
8606
8607   if (x2)
8608     *x2 = 0;
8609
8610   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8611
8612   total_width = 0;
8613   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8614        list;
8615        list = (rtl ? list->prev : list->next))
8616     {
8617       tmp_column = list->data;
8618
8619       if (tmp_column == column)
8620         break;
8621
8622       if (tmp_column->visible)
8623         total_width += tmp_column->width;
8624     }
8625
8626   if (tmp_column != column)
8627     {
8628       g_warning (G_STRLOC": passed-in column isn't in the tree");
8629       return;
8630     }
8631
8632   if (x1)
8633     *x1 = total_width;
8634
8635   if (x2)
8636     {
8637       if (column->visible)
8638         *x2 = total_width + column->width;
8639       else
8640         *x2 = total_width; /* width of 0 */
8641     }
8642 }
8643 static void
8644 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8645                                 GtkRBTree   *tree,
8646                                 gint        *x1,
8647                                 gint        *x2)
8648 {
8649   gint x_offset = 0;
8650   GList *list;
8651   GtkTreeViewColumn *tmp_column = NULL;
8652   gint total_width;
8653   gboolean indent_expanders;
8654   gboolean rtl;
8655
8656   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8657
8658   total_width = 0;
8659   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8660        list;
8661        list = (rtl ? list->prev : list->next))
8662     {
8663       tmp_column = list->data;
8664
8665       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8666         {
8667           if (rtl)
8668             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8669           else
8670             x_offset = total_width;
8671           break;
8672         }
8673
8674       if (tmp_column->visible)
8675         total_width += tmp_column->width;
8676     }
8677
8678   gtk_widget_style_get (GTK_WIDGET (tree_view),
8679                         "indent-expanders", &indent_expanders,
8680                         NULL);
8681
8682   if (indent_expanders)
8683     {
8684       if (rtl)
8685         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8686       else
8687         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8688     }
8689
8690   *x1 = x_offset;
8691
8692   if (tmp_column && tmp_column->visible)
8693     /* +1 because x2 isn't included in the range. */
8694     *x2 = *x1 + tree_view->priv->expander_size + 1;
8695   else
8696     *x2 = *x1;
8697 }
8698
8699 static void
8700 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8701                           GtkRBTree   *tree,
8702                           GtkTreeIter *iter,
8703                           gint         depth,
8704                           gboolean     recurse)
8705 {
8706   GtkRBNode *temp = NULL;
8707   GtkTreePath *path = NULL;
8708   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8709
8710   do
8711     {
8712       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8713       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8714
8715       if (tree_view->priv->fixed_height > 0)
8716         {
8717           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8718             {
8719               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8720               _gtk_rbtree_node_mark_valid (tree, temp);
8721             }
8722         }
8723
8724       if (is_list)
8725         continue;
8726
8727       if (recurse)
8728         {
8729           GtkTreeIter child;
8730
8731           if (!path)
8732             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8733           else
8734             gtk_tree_path_next (path);
8735
8736           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8737             {
8738               gboolean expand;
8739
8740               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8741
8742               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8743                   && !expand)
8744                 {
8745                   temp->children = _gtk_rbtree_new ();
8746                   temp->children->parent_tree = tree;
8747                   temp->children->parent_node = temp;
8748                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8749                 }
8750             }
8751         }
8752
8753       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8754         {
8755           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8756             temp->flags ^= GTK_RBNODE_IS_PARENT;
8757         }
8758     }
8759   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8760
8761   if (path)
8762     gtk_tree_path_free (path);
8763 }
8764
8765 /* If height is non-NULL, then we set it to be the new height.  if it's all
8766  * dirty, then height is -1.  We know we'll remeasure dirty rows, anyways.
8767  */
8768 static gboolean
8769 gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
8770                                    GtkTreeIter *iter,
8771                                    gint         depth,
8772                                    gint        *height,
8773                                    GtkRBNode   *node)
8774 {
8775   GtkTreeViewColumn *column;
8776   GList *list;
8777   gboolean retval = FALSE;
8778   gint tmpheight;
8779   gint horizontal_separator;
8780
8781   gtk_widget_style_get (GTK_WIDGET (tree_view),
8782                         "horizontal-separator", &horizontal_separator,
8783                         NULL);
8784
8785   if (height)
8786     *height = -1;
8787
8788   for (list = tree_view->priv->columns; list; list = list->next)
8789     {
8790       gint width;
8791       column = list->data;
8792       if (column->dirty == TRUE)
8793         continue;
8794       if (height == NULL && column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
8795         continue;
8796       if (!column->visible)
8797         continue;
8798
8799       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
8800                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
8801                                                node->children?TRUE:FALSE);
8802
8803       if (height)
8804         {
8805           gtk_tree_view_column_cell_get_size (column,
8806                                               NULL, NULL, NULL,
8807                                               &width, &tmpheight);
8808           *height = MAX (*height, tmpheight);
8809         }
8810       else
8811         {
8812           gtk_tree_view_column_cell_get_size (column,
8813                                               NULL, NULL, NULL,
8814                                               &width, NULL);
8815         }
8816
8817       if (gtk_tree_view_is_expander_column (tree_view, column))
8818         {
8819           int tmp = 0;
8820
8821           tmp = horizontal_separator + width + (depth - 1) * tree_view->priv->level_indentation;
8822           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
8823             tmp += depth * tree_view->priv->expander_size;
8824
8825           if (tmp > column->requested_width)
8826             {
8827               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8828               retval = TRUE;
8829             }
8830         }
8831       else
8832         {
8833           if (horizontal_separator + width > column->requested_width)
8834             {
8835               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8836               retval = TRUE;
8837             }
8838         }
8839     }
8840
8841   return retval;
8842 }
8843
8844 static void
8845 gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
8846                               GtkRBTree   *tree,
8847                               GtkTreeIter *iter,
8848                               gint         depth)
8849 {
8850   GtkRBNode *temp = tree->root;
8851   GtkTreeViewColumn *column;
8852   GList *list;
8853   GtkTreeIter child;
8854   gboolean is_all_dirty;
8855
8856   TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
8857
8858   while (temp->left != tree->nil)
8859     temp = temp->left;
8860
8861   do
8862     {
8863       TREE_VIEW_INTERNAL_ASSERT_VOID (temp != NULL);
8864       is_all_dirty = TRUE;
8865       for (list = tree_view->priv->columns; list; list = list->next)
8866         {
8867           column = list->data;
8868           if (column->dirty == FALSE)
8869             {
8870               is_all_dirty = FALSE;
8871               break;
8872             }
8873         }
8874
8875       if (is_all_dirty)
8876         return;
8877
8878       gtk_tree_view_discover_dirty_iter (tree_view,
8879                                          iter,
8880                                          depth,
8881                                          NULL,
8882                                          temp);
8883       if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
8884           temp->children != NULL)
8885         gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
8886       temp = _gtk_rbtree_next (tree, temp);
8887     }
8888   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8889 }
8890
8891
8892 /* Make sure the node is visible vertically */
8893 static void
8894 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8895                                   GtkRBTree   *tree,
8896                                   GtkRBNode   *node)
8897 {
8898   gint node_dy, height;
8899   GtkTreePath *path = NULL;
8900
8901   if (!GTK_WIDGET_REALIZED (tree_view))
8902     return;
8903
8904   /* just return if the node is visible, avoiding a costly expose */
8905   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8906   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8907   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8908       && node_dy >= tree_view->priv->vadjustment->value
8909       && node_dy + height <= (tree_view->priv->vadjustment->value
8910                               + tree_view->priv->vadjustment->page_size))
8911     return;
8912
8913   path = _gtk_tree_view_find_path (tree_view, tree, node);
8914   if (path)
8915     {
8916       /* We process updates because we want to clear old selected items when we scroll.
8917        * if this is removed, we get a "selection streak" at the bottom. */
8918       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8919       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8920       gtk_tree_path_free (path);
8921     }
8922 }
8923
8924 static void
8925 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8926                                     GtkTreeViewColumn *column,
8927                                     gboolean           focus_to_cell)
8928 {
8929   gint x, width;
8930
8931   if (column == NULL)
8932     return;
8933
8934   x = column->button->allocation.x;
8935   width = column->button->allocation.width;
8936
8937   if (width > tree_view->priv->hadjustment->page_size)
8938     {
8939       /* The column is larger than the horizontal page size.  If the
8940        * column has cells which can be focussed individually, then we make
8941        * sure the cell which gets focus is fully visible (if even the
8942        * focus cell is bigger than the page size, we make sure the
8943        * left-hand side of the cell is visible).
8944        *
8945        * If the column does not have those so-called special cells, we
8946        * make sure the left-hand side of the column is visible.
8947        */
8948
8949       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8950         {
8951           GtkTreePath *cursor_path;
8952           GdkRectangle background_area, cell_area, focus_area;
8953
8954           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8955
8956           gtk_tree_view_get_cell_area (tree_view,
8957                                        cursor_path, column, &cell_area);
8958           gtk_tree_view_get_background_area (tree_view,
8959                                              cursor_path, column,
8960                                              &background_area);
8961
8962           gtk_tree_path_free (cursor_path);
8963
8964           _gtk_tree_view_column_get_focus_area (column,
8965                                                 &background_area,
8966                                                 &cell_area,
8967                                                 &focus_area);
8968
8969           x = focus_area.x;
8970           width = focus_area.width;
8971
8972           if (width < tree_view->priv->hadjustment->page_size)
8973             {
8974               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8975                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8976                                           x + width - tree_view->priv->hadjustment->page_size);
8977               else if (tree_view->priv->hadjustment->value > x)
8978                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8979             }
8980         }
8981
8982       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8983                                 CLAMP (x,
8984                                        tree_view->priv->hadjustment->lower,
8985                                        tree_view->priv->hadjustment->upper
8986                                        - tree_view->priv->hadjustment->page_size));
8987     }
8988   else
8989     {
8990       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8991           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8992                                     x + width - tree_view->priv->hadjustment->page_size);
8993       else if (tree_view->priv->hadjustment->value > x)
8994         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8995   }
8996 }
8997
8998 /* This function could be more efficient.  I'll optimize it if profiling seems
8999  * to imply that it is important */
9000 GtkTreePath *
9001 _gtk_tree_view_find_path (GtkTreeView *tree_view,
9002                           GtkRBTree   *tree,
9003                           GtkRBNode   *node)
9004 {
9005   GtkTreePath *path;
9006   GtkRBTree *tmp_tree;
9007   GtkRBNode *tmp_node, *last;
9008   gint count;
9009
9010   path = gtk_tree_path_new ();
9011
9012   g_return_val_if_fail (node != NULL, path);
9013   g_return_val_if_fail (node != tree->nil, path);
9014
9015   count = 1 + node->left->count;
9016
9017   last = node;
9018   tmp_node = node->parent;
9019   tmp_tree = tree;
9020   while (tmp_tree)
9021     {
9022       while (tmp_node != tmp_tree->nil)
9023         {
9024           if (tmp_node->right == last)
9025             count += 1 + tmp_node->left->count;
9026           last = tmp_node;
9027           tmp_node = tmp_node->parent;
9028         }
9029       gtk_tree_path_prepend_index (path, count - 1);
9030       last = tmp_tree->parent_node;
9031       tmp_tree = tmp_tree->parent_tree;
9032       if (last)
9033         {
9034           count = 1 + last->left->count;
9035           tmp_node = last->parent;
9036         }
9037     }
9038   return path;
9039 }
9040
9041 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
9042  * invalid (ie. points to a node that's not in the tree), *tree and *node are
9043  * both set to NULL.
9044  */
9045 gboolean
9046 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
9047                           GtkTreePath  *path,
9048                           GtkRBTree   **tree,
9049                           GtkRBNode   **node)
9050 {
9051   GtkRBNode *tmpnode = NULL;
9052   GtkRBTree *tmptree = tree_view->priv->tree;
9053   gint *indices = gtk_tree_path_get_indices (path);
9054   gint depth = gtk_tree_path_get_depth (path);
9055   gint i = 0;
9056
9057   *node = NULL;
9058   *tree = NULL;
9059
9060   if (depth == 0 || tmptree == NULL)
9061     return FALSE;
9062   do
9063     {
9064       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9065       ++i;
9066       if (tmpnode == NULL)
9067         {
9068           *tree = NULL;
9069           *node = NULL;
9070           return FALSE;
9071         }
9072       if (i >= depth)
9073         {
9074           *tree = tmptree;
9075           *node = tmpnode;
9076           return FALSE;
9077         }
9078       *tree = tmptree;
9079       *node = tmpnode;
9080       tmptree = tmpnode->children;
9081       if (tmptree == NULL)
9082         return TRUE;
9083     }
9084   while (1);
9085 }
9086
9087 static gboolean
9088 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9089                                   GtkTreeViewColumn *column)
9090 {
9091   GList *list;
9092
9093   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9094     return FALSE;
9095
9096   if (tree_view->priv->expander_column != NULL)
9097     {
9098       if (tree_view->priv->expander_column == column)
9099         return TRUE;
9100       return FALSE;
9101     }
9102   else
9103     {
9104       for (list = tree_view->priv->columns;
9105            list;
9106            list = list->next)
9107         if (((GtkTreeViewColumn *)list->data)->visible)
9108           break;
9109       if (list && list->data == column)
9110         return TRUE;
9111     }
9112   return FALSE;
9113 }
9114
9115 static void
9116 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9117                                 guint           keyval,
9118                                 guint           modmask,
9119                                 gboolean        add_shifted_binding,
9120                                 GtkMovementStep step,
9121                                 gint            count)
9122 {
9123
9124   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9125                                 "move_cursor", 2,
9126                                 G_TYPE_ENUM, step,
9127                                 G_TYPE_INT, count);
9128
9129   if (add_shifted_binding)
9130     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9131                                   "move_cursor", 2,
9132                                   G_TYPE_ENUM, step,
9133                                   G_TYPE_INT, count);
9134
9135   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9136    return;
9137
9138   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9139                                 "move_cursor", 2,
9140                                 G_TYPE_ENUM, step,
9141                                 G_TYPE_INT, count);
9142
9143   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9144                                 "move_cursor", 2,
9145                                 G_TYPE_ENUM, step,
9146                                 G_TYPE_INT, count);
9147 }
9148
9149 static gint
9150 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9151                                  GtkTreeIter  *iter,
9152                                  GtkRBTree    *tree,
9153                                  GtkRBNode    *node)
9154 {
9155   gint retval = FALSE;
9156   do
9157     {
9158       g_return_val_if_fail (node != NULL, FALSE);
9159
9160       if (node->children)
9161         {
9162           GtkTreeIter child;
9163           GtkRBTree *new_tree;
9164           GtkRBNode *new_node;
9165
9166           new_tree = node->children;
9167           new_node = new_tree->root;
9168
9169           while (new_node && new_node->left != new_tree->nil)
9170             new_node = new_node->left;
9171
9172           if (!gtk_tree_model_iter_children (model, &child, iter))
9173             return FALSE;
9174
9175           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9176         }
9177
9178       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9179         retval = TRUE;
9180       gtk_tree_model_unref_node (model, iter);
9181       node = _gtk_rbtree_next (tree, node);
9182     }
9183   while (gtk_tree_model_iter_next (model, iter));
9184
9185   return retval;
9186 }
9187
9188 static gint
9189 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9190                                               GtkRBTree   *tree)
9191 {
9192   GtkTreeIter iter;
9193   GtkTreePath *path;
9194   GtkRBNode *node;
9195   gint retval;
9196
9197   if (!tree)
9198     return FALSE;
9199
9200   node = tree->root;
9201   while (node && node->left != tree->nil)
9202     node = node->left;
9203
9204   g_return_val_if_fail (node != NULL, FALSE);
9205   path = _gtk_tree_view_find_path (tree_view, tree, node);
9206   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9207                            &iter, path);
9208   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9209   gtk_tree_path_free (path);
9210
9211   return retval;
9212 }
9213
9214 static void
9215 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9216                                     GtkTreeViewColumn *column)
9217 {
9218   GtkTreeViewColumn *left_column;
9219   GtkTreeViewColumn *cur_column = NULL;
9220   GtkTreeViewColumnReorder *reorder;
9221   gboolean rtl;
9222   GList *tmp_list;
9223   gint left;
9224
9225   /* We want to precalculate the motion list such that we know what column slots
9226    * are available.
9227    */
9228   left_column = NULL;
9229   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9230
9231   /* First, identify all possible drop spots */
9232   if (rtl)
9233     tmp_list = g_list_last (tree_view->priv->columns);
9234   else
9235     tmp_list = g_list_first (tree_view->priv->columns);
9236
9237   while (tmp_list)
9238     {
9239       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9240       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9241
9242       if (cur_column->visible == FALSE)
9243         continue;
9244
9245       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9246       if (left_column != column && cur_column != column &&
9247           tree_view->priv->column_drop_func &&
9248           ! (* tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9249         {
9250           left_column = cur_column;
9251           continue;
9252         }
9253       reorder = g_new (GtkTreeViewColumnReorder, 1);
9254       reorder->left_column = left_column;
9255       left_column = reorder->right_column = cur_column;
9256
9257       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9258     }
9259
9260   /* Add the last one */
9261   if (tree_view->priv->column_drop_func == NULL ||
9262       ((left_column != column) &&
9263        (* tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9264     {
9265       reorder = g_new (GtkTreeViewColumnReorder, 1);
9266       reorder->left_column = left_column;
9267       reorder->right_column = NULL;
9268       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9269     }
9270
9271   /* We quickly check to see if it even makes sense to reorder columns. */
9272   /* If there is nothing that can be moved, then we return */
9273
9274   if (tree_view->priv->column_drag_info == NULL)
9275     return;
9276
9277   /* We know there are always 2 slots possbile, as you can always return column. */
9278   /* If that's all there is, return */
9279   if (tree_view->priv->column_drag_info->next == NULL ||
9280       (tree_view->priv->column_drag_info->next->next == NULL &&
9281        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9282        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9283     {
9284       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9285         g_free (tmp_list->data);
9286       g_list_free (tree_view->priv->column_drag_info);
9287       tree_view->priv->column_drag_info = NULL;
9288       return;
9289     }
9290   /* We fill in the ranges for the columns, now that we've isolated them */
9291   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9292
9293   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9294     {
9295       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9296
9297       reorder->left_align = left;
9298       if (tmp_list->next != NULL)
9299         {
9300           g_assert (tmp_list->next->data);
9301           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9302                                          reorder->right_column->button->allocation.width +
9303                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9304         }
9305       else
9306         {
9307           gint width;
9308
9309           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9310           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9311         }
9312     }
9313 }
9314
9315 void
9316 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9317                                   GtkTreeViewColumn *column)
9318 {
9319   GdkEvent *send_event;
9320   GtkAllocation allocation;
9321   gint x, y, width, height;
9322   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9323   GdkDisplay *display = gdk_screen_get_display (screen);
9324
9325   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9326   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9327
9328   gtk_tree_view_set_column_drag_info (tree_view, column);
9329
9330   if (tree_view->priv->column_drag_info == NULL)
9331     return;
9332
9333   if (tree_view->priv->drag_window == NULL)
9334     {
9335       GdkWindowAttr attributes;
9336       guint attributes_mask;
9337
9338       attributes.window_type = GDK_WINDOW_CHILD;
9339       attributes.wclass = GDK_INPUT_OUTPUT;
9340       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9341       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9342       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9343       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9344
9345       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9346                                                      &attributes,
9347                                                      attributes_mask);
9348       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9349     }
9350
9351   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9352   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9353
9354   gtk_grab_remove (column->button);
9355
9356   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9357   send_event->crossing.send_event = TRUE;
9358   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9359   send_event->crossing.subwindow = NULL;
9360   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9361   send_event->crossing.time = GDK_CURRENT_TIME;
9362
9363   gtk_propagate_event (column->button, send_event);
9364   gdk_event_free (send_event);
9365
9366   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9367   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9368   send_event->button.send_event = TRUE;
9369   send_event->button.time = GDK_CURRENT_TIME;
9370   send_event->button.x = -1;
9371   send_event->button.y = -1;
9372   send_event->button.axes = NULL;
9373   send_event->button.state = 0;
9374   send_event->button.button = 1;
9375   send_event->button.device = gdk_display_get_core_pointer (display);
9376   send_event->button.x_root = 0;
9377   send_event->button.y_root = 0;
9378
9379   gtk_propagate_event (column->button, send_event);
9380   gdk_event_free (send_event);
9381
9382   gdk_window_move_resize (tree_view->priv->drag_window,
9383                           column->button->allocation.x,
9384                           0,
9385                           column->button->allocation.width,
9386                           column->button->allocation.height);
9387
9388   /* Kids, don't try this at home */
9389   g_object_ref (column->button);
9390   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9391   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9392   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9393   g_object_unref (column->button);
9394
9395   tree_view->priv->drag_column_x = column->button->allocation.x;
9396   allocation = column->button->allocation;
9397   allocation.x = 0;
9398   gtk_widget_size_allocate (column->button, &allocation);
9399   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9400
9401   tree_view->priv->drag_column = column;
9402   gdk_window_show (tree_view->priv->drag_window);
9403
9404   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9405   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9406
9407   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9408   while (gtk_events_pending ())
9409     gtk_main_iteration ();
9410
9411   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9412   gdk_pointer_grab (tree_view->priv->drag_window,
9413                     FALSE,
9414                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9415                     NULL, NULL, GDK_CURRENT_TIME);
9416   gdk_keyboard_grab (tree_view->priv->drag_window,
9417                      FALSE,
9418                      GDK_CURRENT_TIME);
9419 }
9420
9421 static void
9422 gtk_tree_view_queue_draw_arrow (GtkTreeView      *tree_view,
9423                                 GtkRBTree        *tree,
9424                                 GtkRBNode        *node,
9425                                 GdkRectangle     *clip_rect)
9426 {
9427   GdkRectangle rect;
9428
9429   if (!GTK_WIDGET_REALIZED (tree_view))
9430     return;
9431
9432   rect.x = 0;
9433   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9434
9435   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9436   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9437
9438   if (clip_rect)
9439     {
9440       GdkRectangle new_rect;
9441
9442       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9443
9444       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9445     }
9446   else
9447     {
9448       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9449     }
9450 }
9451
9452 void
9453 _gtk_tree_view_queue_draw_node (GtkTreeView  *tree_view,
9454                                 GtkRBTree    *tree,
9455                                 GtkRBNode    *node,
9456                                 GdkRectangle *clip_rect)
9457 {
9458   GdkRectangle rect;
9459
9460   if (!GTK_WIDGET_REALIZED (tree_view))
9461     return;
9462
9463   rect.x = 0;
9464   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9465
9466   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9467   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9468
9469   if (clip_rect)
9470     {
9471       GdkRectangle new_rect;
9472
9473       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9474
9475       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9476     }
9477   else
9478     {
9479       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9480     }
9481 }
9482
9483 static void
9484 gtk_tree_view_queue_draw_path (GtkTreeView      *tree_view,
9485                                GtkTreePath      *path,
9486                                GdkRectangle     *clip_rect)
9487 {
9488   GtkRBTree *tree = NULL;
9489   GtkRBNode *node = NULL;
9490
9491   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9492
9493   if (tree)
9494     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9495 }
9496
9497 /* x and y are the mouse position
9498  */
9499 static void
9500 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9501                           GtkRBTree   *tree,
9502                           GtkRBNode   *node,
9503                           /* in bin_window coordinates */
9504                           gint         x,
9505                           gint         y)
9506 {
9507   GdkRectangle area;
9508   GtkStateType state;
9509   GtkWidget *widget;
9510   gint x_offset = 0;
9511   gint x2;
9512   gint vertical_separator;
9513   gint expander_size;
9514   GtkExpanderStyle expander_style;
9515
9516   gtk_widget_style_get (GTK_WIDGET (tree_view),
9517                         "vertical-separator", &vertical_separator,
9518                         NULL);
9519   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9520
9521   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9522     return;
9523
9524   widget = GTK_WIDGET (tree_view);
9525
9526   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9527
9528   area.x = x_offset;
9529   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9530   area.width = expander_size + 2;
9531   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9532
9533   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9534     {
9535       state = GTK_STATE_INSENSITIVE;
9536     }
9537   else if (node == tree_view->priv->button_pressed_node)
9538     {
9539       if (x >= area.x && x <= (area.x + area.width) &&
9540           y >= area.y && y <= (area.y + area.height))
9541         state = GTK_STATE_ACTIVE;
9542       else
9543         state = GTK_STATE_NORMAL;
9544     }
9545   else
9546     {
9547       if (node == tree_view->priv->prelight_node &&
9548           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9549         state = GTK_STATE_PRELIGHT;
9550       else
9551         state = GTK_STATE_NORMAL;
9552     }
9553
9554   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9555     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9556   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9557     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9558   else if (node->children != NULL)
9559     expander_style = GTK_EXPANDER_EXPANDED;
9560   else
9561     expander_style = GTK_EXPANDER_COLLAPSED;
9562
9563   gtk_paint_expander (widget->style,
9564                       tree_view->priv->bin_window,
9565                       state,
9566                       &area,
9567                       widget,
9568                       "treeview",
9569                       area.x + area.width / 2,
9570                       area.y + area.height / 2,
9571                       expander_style);
9572 }
9573
9574 static void
9575 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9576
9577 {
9578   GtkTreePath *cursor_path;
9579
9580   if ((tree_view->priv->tree == NULL) ||
9581       (! GTK_WIDGET_REALIZED (tree_view)))
9582     return;
9583
9584   cursor_path = NULL;
9585   if (tree_view->priv->cursor)
9586     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9587
9588   if (cursor_path == NULL)
9589     {
9590       /* Consult the selection before defaulting to the
9591        * first focusable element
9592        */
9593       GList *selected_rows;
9594       GtkTreeModel *model;
9595       GtkTreeSelection *selection;
9596
9597       selection = gtk_tree_view_get_selection (tree_view);
9598       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9599
9600       if (selected_rows)
9601         {
9602           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9603           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9604           g_list_free (selected_rows);
9605         }
9606       else
9607         {
9608           cursor_path = gtk_tree_path_new_first ();
9609           search_first_focusable_path (tree_view, &cursor_path,
9610                                        TRUE, NULL, NULL);
9611         }
9612
9613       gtk_tree_row_reference_free (tree_view->priv->cursor);
9614       tree_view->priv->cursor = NULL;
9615
9616       if (cursor_path)
9617         {
9618           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9619             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9620           else
9621             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9622         }
9623     }
9624
9625   if (cursor_path)
9626     {
9627       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9628
9629       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9630       gtk_tree_path_free (cursor_path);
9631
9632       if (tree_view->priv->focus_column == NULL)
9633         {
9634           GList *list;
9635           for (list = tree_view->priv->columns; list; list = list->next)
9636             {
9637               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9638                 {
9639                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9640                   break;
9641                 }
9642             }
9643         }
9644     }
9645 }
9646
9647 static void
9648 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9649                                    gint         count)
9650 {
9651   gint selection_count;
9652   GtkRBTree *cursor_tree = NULL;
9653   GtkRBNode *cursor_node = NULL;
9654   GtkRBTree *new_cursor_tree = NULL;
9655   GtkRBNode *new_cursor_node = NULL;
9656   GtkTreePath *cursor_path = NULL;
9657   gboolean grab_focus = TRUE;
9658   gboolean selectable;
9659
9660   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9661     return;
9662
9663   cursor_path = NULL;
9664   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9665     /* FIXME: we lost the cursor; should we get the first? */
9666     return;
9667
9668   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9669   _gtk_tree_view_find_node (tree_view, cursor_path,
9670                             &cursor_tree, &cursor_node);
9671
9672   if (cursor_tree == NULL)
9673     /* FIXME: we lost the cursor; should we get the first? */
9674     return;
9675
9676   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9677   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9678                                                       cursor_node,
9679                                                       cursor_path);
9680
9681   if (selection_count == 0
9682       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9683       && !tree_view->priv->ctrl_pressed
9684       && selectable)
9685     {
9686       /* Don't move the cursor, but just select the current node */
9687       new_cursor_tree = cursor_tree;
9688       new_cursor_node = cursor_node;
9689     }
9690   else
9691     {
9692       if (count == -1)
9693         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9694                                &new_cursor_tree, &new_cursor_node);
9695       else
9696         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9697                                &new_cursor_tree, &new_cursor_node);
9698     }
9699
9700   gtk_tree_path_free (cursor_path);
9701
9702   if (new_cursor_node)
9703     {
9704       cursor_path = _gtk_tree_view_find_path (tree_view,
9705                                               new_cursor_tree, new_cursor_node);
9706
9707       search_first_focusable_path (tree_view, &cursor_path,
9708                                    (count != -1),
9709                                    &new_cursor_tree,
9710                                    &new_cursor_node);
9711
9712       if (cursor_path)
9713         gtk_tree_path_free (cursor_path);
9714     }
9715
9716   /*
9717    * If the list has only one item and multi-selection is set then select
9718    * the row (if not yet selected).
9719    */
9720   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9721       new_cursor_node == NULL)
9722     {
9723       if (count == -1)
9724         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9725                                &new_cursor_tree, &new_cursor_node);
9726       else
9727         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9728                                &new_cursor_tree, &new_cursor_node);
9729
9730       if (new_cursor_node == NULL
9731           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9732         {
9733           new_cursor_node = cursor_node;
9734           new_cursor_tree = cursor_tree;
9735         }
9736       else
9737         {
9738           new_cursor_node = NULL;
9739         }
9740     }
9741
9742   if (new_cursor_node)
9743     {
9744       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9745       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9746       gtk_tree_path_free (cursor_path);
9747     }
9748   else
9749     {
9750       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9751
9752       if (!tree_view->priv->shift_pressed)
9753         {
9754           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9755                                           count < 0 ?
9756                                           GTK_DIR_UP : GTK_DIR_DOWN))
9757             {
9758               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9759
9760               if (toplevel)
9761                 gtk_widget_child_focus (toplevel,
9762                                         count < 0 ?
9763                                         GTK_DIR_TAB_BACKWARD :
9764                                         GTK_DIR_TAB_FORWARD);
9765
9766               grab_focus = FALSE;
9767             }
9768         }
9769       else
9770         {
9771           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9772         }
9773     }
9774
9775   if (grab_focus)
9776     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9777 }
9778
9779 static void
9780 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9781                                         gint         count)
9782 {
9783   GtkRBTree *cursor_tree = NULL;
9784   GtkRBNode *cursor_node = NULL;
9785   GtkTreePath *old_cursor_path = NULL;
9786   GtkTreePath *cursor_path = NULL;
9787   GtkRBTree *start_cursor_tree = NULL;
9788   GtkRBNode *start_cursor_node = NULL;
9789   gint y;
9790   gint window_y;
9791   gint vertical_separator;
9792
9793   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9794     return;
9795
9796   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9797     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9798   else
9799     /* This is sorta weird.  Focus in should give us a cursor */
9800     return;
9801
9802   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9803   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9804                             &cursor_tree, &cursor_node);
9805
9806   if (cursor_tree == NULL)
9807     {
9808       /* FIXME: we lost the cursor.  Should we try to get one? */
9809       gtk_tree_path_free (old_cursor_path);
9810       return;
9811     }
9812   g_return_if_fail (cursor_node != NULL);
9813
9814   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9815   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9816   y += tree_view->priv->cursor_offset;
9817   y += count * (int)tree_view->priv->vadjustment->page_increment;
9818   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9819
9820   if (y >= tree_view->priv->height)
9821     y = tree_view->priv->height - 1;
9822
9823   tree_view->priv->cursor_offset =
9824     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9825                              &cursor_tree, &cursor_node);
9826
9827   if (tree_view->priv->cursor_offset >= BACKGROUND_HEIGHT (cursor_node))
9828     {
9829       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9830                              &cursor_tree, &cursor_node);
9831       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9832     }
9833
9834   y -= tree_view->priv->cursor_offset;
9835   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9836
9837   start_cursor_tree = cursor_tree;
9838   start_cursor_node = cursor_node;
9839
9840   if (! search_first_focusable_path (tree_view, &cursor_path,
9841                                      (count != -1),
9842                                      &cursor_tree, &cursor_node))
9843     {
9844       /* It looks like we reached the end of the view without finding
9845        * a focusable row.  We will step backwards to find the last
9846        * focusable row.
9847        */
9848       cursor_tree = start_cursor_tree;
9849       cursor_node = start_cursor_node;
9850       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9851
9852       search_first_focusable_path (tree_view, &cursor_path,
9853                                    (count == -1),
9854                                    &cursor_tree, &cursor_node);
9855     }
9856
9857   if (!cursor_path)
9858     goto cleanup;
9859
9860   /* update y */
9861   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9862
9863   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9864
9865   y -= window_y;
9866   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9867   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9868   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9869
9870   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9871     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9872
9873 cleanup:
9874   gtk_tree_path_free (old_cursor_path);
9875   gtk_tree_path_free (cursor_path);
9876 }
9877
9878 static void
9879 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9880                                       gint         count)
9881 {
9882   GtkRBTree *cursor_tree = NULL;
9883   GtkRBNode *cursor_node = NULL;
9884   GtkTreePath *cursor_path = NULL;
9885   GtkTreeViewColumn *column;
9886   GtkTreeIter iter;
9887   GList *list;
9888   gboolean found_column = FALSE;
9889   gboolean rtl;
9890
9891   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9892
9893   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9894     return;
9895
9896   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9897     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9898   else
9899     return;
9900
9901   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9902   if (cursor_tree == NULL)
9903     return;
9904   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9905     {
9906       gtk_tree_path_free (cursor_path);
9907       return;
9908     }
9909   gtk_tree_path_free (cursor_path);
9910
9911   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9912   if (tree_view->priv->focus_column)
9913     {
9914       for (; list; list = (rtl ? list->prev : list->next))
9915         {
9916           if (list->data == tree_view->priv->focus_column)
9917             break;
9918         }
9919     }
9920
9921   while (list)
9922     {
9923       gboolean left, right;
9924
9925       column = list->data;
9926       if (column->visible == FALSE)
9927         goto loop_end;
9928
9929       gtk_tree_view_column_cell_set_cell_data (column,
9930                                                tree_view->priv->model,
9931                                                &iter,
9932                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9933                                                cursor_node->children?TRUE:FALSE);
9934
9935       if (rtl)
9936         {
9937           right = list->prev ? TRUE : FALSE;
9938           left = list->next ? TRUE : FALSE;
9939         }
9940       else
9941         {
9942           left = list->prev ? TRUE : FALSE;
9943           right = list->next ? TRUE : FALSE;
9944         }
9945
9946       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9947         {
9948           tree_view->priv->focus_column = column;
9949           found_column = TRUE;
9950           break;
9951         }
9952     loop_end:
9953       if (count == 1)
9954         list = rtl ? list->prev : list->next;
9955       else
9956         list = rtl ? list->next : list->prev;
9957     }
9958
9959   if (found_column)
9960     {
9961       if (!gtk_tree_view_has_special_cell (tree_view))
9962         _gtk_tree_view_queue_draw_node (tree_view,
9963                                         cursor_tree,
9964                                         cursor_node,
9965                                         NULL);
9966       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9967     }
9968   else
9969     {
9970       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9971     }
9972
9973   gtk_tree_view_clamp_column_visible (tree_view,
9974                                       tree_view->priv->focus_column, TRUE);
9975 }
9976
9977 static void
9978 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9979                                      gint         count)
9980 {
9981   GtkRBTree *cursor_tree;
9982   GtkRBNode *cursor_node;
9983   GtkTreePath *path;
9984   GtkTreePath *old_path;
9985
9986   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9987     return;
9988
9989   g_return_if_fail (tree_view->priv->tree != NULL);
9990
9991   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9992
9993   cursor_tree = tree_view->priv->tree;
9994   cursor_node = cursor_tree->root;
9995
9996   if (count == -1)
9997     {
9998       while (cursor_node && cursor_node->left != cursor_tree->nil)
9999         cursor_node = cursor_node->left;
10000
10001       /* Now go forward to find the first focusable row. */
10002       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
10003       search_first_focusable_path (tree_view, &path,
10004                                    TRUE, &cursor_tree, &cursor_node);
10005     }
10006   else
10007     {
10008       do
10009         {
10010           while (cursor_node && cursor_node->right != cursor_tree->nil)
10011             cursor_node = cursor_node->right;
10012           if (cursor_node->children == NULL)
10013             break;
10014
10015           cursor_tree = cursor_node->children;
10016           cursor_node = cursor_tree->root;
10017         }
10018       while (1);
10019
10020       /* Now go backwards to find last focusable row. */
10021       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
10022       search_first_focusable_path (tree_view, &path,
10023                                    FALSE, &cursor_tree, &cursor_node);
10024     }
10025
10026   if (!path)
10027     goto cleanup;
10028
10029   if (gtk_tree_path_compare (old_path, path))
10030     {
10031       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
10032     }
10033   else
10034     {
10035       gtk_widget_error_bell (GTK_WIDGET (tree_view));
10036     }
10037
10038 cleanup:
10039   gtk_tree_path_free (old_path);
10040   gtk_tree_path_free (path);
10041 }
10042
10043 static gboolean
10044 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
10045 {
10046   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10047     return FALSE;
10048
10049   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10050     return FALSE;
10051
10052   gtk_tree_selection_select_all (tree_view->priv->selection);
10053
10054   return TRUE;
10055 }
10056
10057 static gboolean
10058 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10059 {
10060   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10061     return FALSE;
10062
10063   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10064     return FALSE;
10065
10066   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10067
10068   return TRUE;
10069 }
10070
10071 static gboolean
10072 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10073                                       gboolean     start_editing)
10074 {
10075   GtkRBTree *cursor_tree = NULL;
10076   GtkRBNode *cursor_node = NULL;
10077   GtkTreePath *cursor_path = NULL;
10078   GtkTreeSelectMode mode = 0;
10079
10080   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10081     return FALSE;
10082
10083   if (tree_view->priv->cursor)
10084     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10085
10086   if (cursor_path == NULL)
10087     return FALSE;
10088
10089   _gtk_tree_view_find_node (tree_view, cursor_path,
10090                             &cursor_tree, &cursor_node);
10091
10092   if (cursor_tree == NULL)
10093     {
10094       gtk_tree_path_free (cursor_path);
10095       return FALSE;
10096     }
10097
10098   if (!tree_view->priv->shift_pressed && start_editing &&
10099       tree_view->priv->focus_column)
10100     {
10101       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10102         {
10103           gtk_tree_path_free (cursor_path);
10104           return TRUE;
10105         }
10106     }
10107
10108   if (tree_view->priv->ctrl_pressed)
10109     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10110   if (tree_view->priv->shift_pressed)
10111     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10112
10113   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10114                                             cursor_node,
10115                                             cursor_tree,
10116                                             cursor_path,
10117                                             mode,
10118                                             FALSE);
10119
10120   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10121
10122   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10123   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10124
10125   if (!tree_view->priv->shift_pressed)
10126     gtk_tree_view_row_activated (tree_view, cursor_path,
10127                                  tree_view->priv->focus_column);
10128
10129   gtk_tree_path_free (cursor_path);
10130
10131   return TRUE;
10132 }
10133
10134 static gboolean
10135 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10136 {
10137   GtkRBTree *cursor_tree = NULL;
10138   GtkRBNode *cursor_node = NULL;
10139   GtkTreePath *cursor_path = NULL;
10140
10141   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10142     return FALSE;
10143
10144   cursor_path = NULL;
10145   if (tree_view->priv->cursor)
10146     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10147
10148   if (cursor_path == NULL)
10149     return FALSE;
10150
10151   _gtk_tree_view_find_node (tree_view, cursor_path,
10152                             &cursor_tree, &cursor_node);
10153   if (cursor_tree == NULL)
10154     {
10155       gtk_tree_path_free (cursor_path);
10156       return FALSE;
10157     }
10158
10159   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10160                                             cursor_node,
10161                                             cursor_tree,
10162                                             cursor_path,
10163                                             GTK_TREE_SELECT_MODE_TOGGLE,
10164                                             FALSE);
10165
10166   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10167
10168   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10169   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10170   gtk_tree_path_free (cursor_path);
10171
10172   return TRUE;
10173 }
10174
10175 static gboolean
10176 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10177                                                gboolean     logical,
10178                                                gboolean     expand,
10179                                                gboolean     open_all)
10180 {
10181   GtkTreePath *cursor_path = NULL;
10182   GtkRBTree *tree;
10183   GtkRBNode *node;
10184
10185   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10186     return FALSE;
10187
10188   cursor_path = NULL;
10189   if (tree_view->priv->cursor)
10190     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10191
10192   if (cursor_path == NULL)
10193     return FALSE;
10194
10195   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10196     return FALSE;
10197
10198   /* Don't handle the event if we aren't an expander */
10199   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10200     return FALSE;
10201
10202   if (!logical
10203       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10204     expand = !expand;
10205
10206   if (expand)
10207     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10208   else
10209     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10210
10211   gtk_tree_path_free (cursor_path);
10212
10213   return TRUE;
10214 }
10215
10216 static gboolean
10217 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10218 {
10219   GtkRBTree *cursor_tree = NULL;
10220   GtkRBNode *cursor_node = NULL;
10221   GtkTreePath *cursor_path = NULL;
10222   GdkModifierType state;
10223
10224   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10225     return FALSE;
10226
10227   cursor_path = NULL;
10228   if (tree_view->priv->cursor)
10229     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10230
10231   if (cursor_path == NULL)
10232     return FALSE;
10233
10234   _gtk_tree_view_find_node (tree_view, cursor_path,
10235                             &cursor_tree, &cursor_node);
10236   if (cursor_tree == NULL)
10237     {
10238       gtk_tree_path_free (cursor_path);
10239       return FALSE;
10240     }
10241
10242   if (gtk_get_current_event_state (&state))
10243     {
10244       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10245         tree_view->priv->ctrl_pressed = TRUE;
10246     }
10247
10248   if (cursor_tree->parent_node)
10249     {
10250       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10251       cursor_node = cursor_tree->parent_node;
10252       cursor_tree = cursor_tree->parent_tree;
10253
10254       gtk_tree_path_up (cursor_path);
10255
10256       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10257     }
10258
10259   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10260
10261   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10262   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10263   gtk_tree_path_free (cursor_path);
10264
10265   tree_view->priv->ctrl_pressed = FALSE;
10266
10267   return TRUE;
10268 }
10269 static gboolean
10270 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10271 {
10272   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10273   tree_view->priv->typeselect_flush_timeout = 0;
10274
10275   return FALSE;
10276 }
10277
10278 /* Cut and paste from gtkwindow.c */
10279 static void
10280 send_focus_change (GtkWidget *widget,
10281                    gboolean   in)
10282 {
10283   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10284
10285   g_object_ref (widget);
10286
10287  if (in)
10288     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10289   else
10290     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10291
10292   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10293   fevent->focus_change.window = g_object_ref (widget->window);
10294   fevent->focus_change.in = in;
10295
10296   gtk_widget_event (widget, fevent);
10297
10298   g_object_notify (G_OBJECT (widget), "has-focus");
10299
10300   g_object_unref (widget);
10301   gdk_event_free (fevent);
10302 }
10303
10304 static void
10305 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10306 {
10307   GtkWidget *frame, *vbox, *toplevel;
10308
10309   if (tree_view->priv->search_custom_entry_set)
10310     return;
10311
10312   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10313
10314    if (tree_view->priv->search_window != NULL)
10315      {
10316        if (GTK_WINDOW (toplevel)->group)
10317          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10318                                       GTK_WINDOW (tree_view->priv->search_window));
10319        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10320          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10321                                          GTK_WINDOW (tree_view->priv->search_window));
10322        return;
10323      }
10324
10325   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10326
10327   if (GTK_WINDOW (toplevel)->group)
10328     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10329                                  GTK_WINDOW (tree_view->priv->search_window));
10330
10331   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10332   g_signal_connect (tree_view->priv->search_window, "delete_event",
10333                     G_CALLBACK (gtk_tree_view_search_delete_event),
10334                     tree_view);
10335   g_signal_connect (tree_view->priv->search_window, "key_press_event",
10336                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10337                     tree_view);
10338   g_signal_connect (tree_view->priv->search_window, "button_press_event",
10339                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10340                     tree_view);
10341   g_signal_connect (tree_view->priv->search_window, "scroll_event",
10342                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10343                     tree_view);
10344
10345   frame = gtk_frame_new (NULL);
10346   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10347   gtk_widget_show (frame);
10348   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10349
10350   vbox = gtk_vbox_new (FALSE, 0);
10351   gtk_widget_show (vbox);
10352   gtk_container_add (GTK_CONTAINER (frame), vbox);
10353   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10354
10355   /* add entry */
10356   tree_view->priv->search_entry = gtk_entry_new ();
10357   gtk_widget_show (tree_view->priv->search_entry);
10358   g_signal_connect (tree_view->priv->search_entry, "populate_popup",
10359                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10360                     tree_view);
10361   g_signal_connect (tree_view->priv->search_entry,
10362                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10363                     tree_view);
10364   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10365                     "preedit_changed",
10366                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10367                     tree_view);
10368   gtk_container_add (GTK_CONTAINER (vbox),
10369                      tree_view->priv->search_entry);
10370
10371   gtk_widget_realize (tree_view->priv->search_entry);
10372 }
10373
10374 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10375  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10376  */
10377 static gboolean
10378 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10379                                              gboolean     keybinding)
10380 {
10381   /* We only start interactive search if we have focus or the columns
10382    * have focus.  If one of our children have focus, we don't want to
10383    * start the search.
10384    */
10385   GList *list;
10386   gboolean found_focus = FALSE;
10387   GtkWidgetClass *entry_parent_class;
10388
10389   if (!tree_view->priv->enable_search && !keybinding)
10390     return FALSE;
10391
10392   if (tree_view->priv->search_custom_entry_set)
10393     return FALSE;
10394
10395   if (tree_view->priv->search_window != NULL &&
10396       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10397     return TRUE;
10398
10399   for (list = tree_view->priv->columns; list; list = list->next)
10400     {
10401       GtkTreeViewColumn *column;
10402
10403       column = list->data;
10404       if (! column->visible)
10405         continue;
10406
10407       if (GTK_WIDGET_HAS_FOCUS (column->button))
10408         {
10409           found_focus = TRUE;
10410           break;
10411         }
10412     }
10413
10414   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10415     found_focus = TRUE;
10416
10417   if (!found_focus)
10418     return FALSE;
10419
10420   if (tree_view->priv->search_column < 0)
10421     return FALSE;
10422
10423   gtk_tree_view_ensure_interactive_directory (tree_view);
10424
10425   if (keybinding)
10426     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10427
10428   /* done, show it */
10429   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10430   gtk_widget_show (tree_view->priv->search_window);
10431   if (tree_view->priv->search_entry_changed_id == 0)
10432     {
10433       tree_view->priv->search_entry_changed_id =
10434         g_signal_connect (tree_view->priv->search_entry, "changed",
10435                           G_CALLBACK (gtk_tree_view_search_init),
10436                           tree_view);
10437     }
10438
10439   tree_view->priv->typeselect_flush_timeout =
10440     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10441                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10442                    tree_view);
10443
10444   /* Grab focus will select all the text.  We don't want that to happen, so we
10445    * call the parent instance and bypass the selection change.  This is probably
10446    * really non-kosher. */
10447   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10448   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10449
10450   /* send focus-in event */
10451   send_focus_change (tree_view->priv->search_entry, TRUE);
10452
10453   /* search first matching iter */
10454   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10455
10456   return TRUE;
10457 }
10458
10459 static gboolean
10460 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10461 {
10462   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10463 }
10464
10465 /* this function returns the new width of the column being resized given
10466  * the column and x position of the cursor; the x cursor position is passed
10467  * in as a pointer and automagicly corrected if it's beyond min/max limits
10468  */
10469 static gint
10470 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10471                                 gint       i,
10472                                 gint      *x)
10473 {
10474   GtkTreeViewColumn *column;
10475   gint width;
10476   gboolean rtl;
10477
10478   /* first translate the x position from widget->window
10479    * to clist->clist_window
10480    */
10481   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10482   column = g_list_nth (tree_view->priv->columns, i)->data;
10483   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10484
10485   /* Clamp down the value */
10486   if (column->min_width == -1)
10487     width = MAX (column->button->requisition.width,
10488                  width);
10489   else
10490     width = MAX (column->min_width,
10491                  width);
10492   if (column->max_width != -1)
10493     width = MIN (width, column->max_width);
10494
10495   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10496
10497   return width;
10498 }
10499
10500
10501 /* FIXME this adjust_allocation is a big cut-and-paste from
10502  * GtkCList, needs to be some "official" way to do this
10503  * factored out.
10504  */
10505 typedef struct
10506 {
10507   GdkWindow *window;
10508   int dx;
10509   int dy;
10510 } ScrollData;
10511
10512 /* The window to which widget->window is relative */
10513 #define ALLOCATION_WINDOW(widget)               \
10514    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10515     (widget)->window :                          \
10516      gdk_window_get_parent ((widget)->window))
10517
10518 static void
10519 adjust_allocation_recurse (GtkWidget *widget,
10520                            gpointer   data)
10521 {
10522   ScrollData *scroll_data = data;
10523
10524   /* Need to really size allocate instead of just poking
10525    * into widget->allocation if the widget is not realized.
10526    * FIXME someone figure out why this was.
10527    */
10528   if (!GTK_WIDGET_REALIZED (widget))
10529     {
10530       if (GTK_WIDGET_VISIBLE (widget))
10531         {
10532           GdkRectangle tmp_rectangle = widget->allocation;
10533           tmp_rectangle.x += scroll_data->dx;
10534           tmp_rectangle.y += scroll_data->dy;
10535
10536           gtk_widget_size_allocate (widget, &tmp_rectangle);
10537         }
10538     }
10539   else
10540     {
10541       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10542         {
10543           widget->allocation.x += scroll_data->dx;
10544           widget->allocation.y += scroll_data->dy;
10545
10546           if (GTK_IS_CONTAINER (widget))
10547             gtk_container_forall (GTK_CONTAINER (widget),
10548                                   adjust_allocation_recurse,
10549                                   data);
10550         }
10551     }
10552 }
10553
10554 static void
10555 adjust_allocation (GtkWidget *widget,
10556                    int        dx,
10557                    int        dy)
10558 {
10559   ScrollData scroll_data;
10560
10561   if (GTK_WIDGET_REALIZED (widget))
10562     scroll_data.window = ALLOCATION_WINDOW (widget);
10563   else
10564     scroll_data.window = NULL;
10565
10566   scroll_data.dx = dx;
10567   scroll_data.dy = dy;
10568
10569   adjust_allocation_recurse (widget, &scroll_data);
10570 }
10571
10572 /* Callbacks */
10573 static void
10574 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10575                                   GtkTreeView   *tree_view)
10576 {
10577   if (GTK_WIDGET_REALIZED (tree_view))
10578     {
10579       gint dy;
10580
10581       gdk_window_move (tree_view->priv->bin_window,
10582                        - tree_view->priv->hadjustment->value,
10583                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10584       gdk_window_move (tree_view->priv->header_window,
10585                        - tree_view->priv->hadjustment->value,
10586                        0);
10587       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10588       if (dy && tree_view->priv->edited_column)
10589         {
10590           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10591             {
10592               GList *list;
10593               GtkWidget *widget;
10594               GtkTreeViewChild *child = NULL;
10595
10596               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10597               adjust_allocation (widget, 0, dy);
10598
10599               for (list = tree_view->priv->children; list; list = list->next)
10600                 {
10601                   child = (GtkTreeViewChild *)list->data;
10602                   if (child->widget == widget)
10603                     {
10604                       child->y += dy;
10605                       break;
10606                     }
10607                 }
10608             }
10609         }
10610       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10611
10612       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10613         {
10614           /* update our dy and top_row */
10615           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10616           gtk_tree_view_dy_to_top_row (tree_view);
10617         }
10618     }
10619 }
10620
10621 \f
10622
10623 /* Public methods
10624  */
10625
10626 /**
10627  * gtk_tree_view_new:
10628  *
10629  * Creates a new #GtkTreeView widget.
10630  *
10631  * Return value: A newly created #GtkTreeView widget.
10632  **/
10633 GtkWidget *
10634 gtk_tree_view_new (void)
10635 {
10636   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10637 }
10638
10639 /**
10640  * gtk_tree_view_new_with_model:
10641  * @model: the model.
10642  *
10643  * Creates a new #GtkTreeView widget with the model initialized to @model.
10644  *
10645  * Return value: A newly created #GtkTreeView widget.
10646  **/
10647 GtkWidget *
10648 gtk_tree_view_new_with_model (GtkTreeModel *model)
10649 {
10650   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10651 }
10652
10653 /* Public Accessors
10654  */
10655
10656 /**
10657  * gtk_tree_view_get_model:
10658  * @tree_view: a #GtkTreeView
10659  *
10660  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10661  * model is unset.
10662  *
10663  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10664  **/
10665 GtkTreeModel *
10666 gtk_tree_view_get_model (GtkTreeView *tree_view)
10667 {
10668   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10669
10670   return tree_view->priv->model;
10671 }
10672
10673 /**
10674  * gtk_tree_view_set_model:
10675  * @tree_view: A #GtkTreeNode.
10676  * @model: The model.
10677  *
10678  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10679  * set, it will remove it before setting the new model.  If @model is %NULL,
10680  * then it will unset the old model.
10681  **/
10682 void
10683 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10684                          GtkTreeModel *model)
10685 {
10686   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10687
10688   if (model != NULL)
10689     g_return_if_fail (GTK_IS_TREE_MODEL (model));
10690
10691   if (model == tree_view->priv->model)
10692     return;
10693
10694   if (tree_view->priv->scroll_to_path)
10695     {
10696       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10697       tree_view->priv->scroll_to_path = NULL;
10698     }
10699
10700   if (tree_view->priv->model)
10701     {
10702       GList *tmplist = tree_view->priv->columns;
10703
10704       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10705       gtk_tree_view_stop_editing (tree_view, TRUE);
10706
10707       if (tree_view->priv->expand_collapse_timeout)
10708         {
10709           g_source_remove (tree_view->priv->expand_collapse_timeout);
10710           tree_view->priv->expand_collapse_timeout = 0;
10711         }
10712
10713       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10714                                             gtk_tree_view_row_changed,
10715                                             tree_view);
10716       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10717                                             gtk_tree_view_row_inserted,
10718                                             tree_view);
10719       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10720                                             gtk_tree_view_row_has_child_toggled,
10721                                             tree_view);
10722       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10723                                             gtk_tree_view_row_deleted,
10724                                             tree_view);
10725       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10726                                             gtk_tree_view_rows_reordered,
10727                                             tree_view);
10728
10729       for (; tmplist; tmplist = tmplist->next)
10730         _gtk_tree_view_column_unset_model (tmplist->data,
10731                                            tree_view->priv->model);
10732
10733       if (tree_view->priv->tree)
10734         gtk_tree_view_free_rbtree (tree_view);
10735
10736       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10737       tree_view->priv->drag_dest_row = NULL;
10738       gtk_tree_row_reference_free (tree_view->priv->cursor);
10739       tree_view->priv->cursor = NULL;
10740       gtk_tree_row_reference_free (tree_view->priv->anchor);
10741       tree_view->priv->anchor = NULL;
10742       gtk_tree_row_reference_free (tree_view->priv->top_row);
10743       tree_view->priv->top_row = NULL;
10744       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10745       tree_view->priv->last_button_press = NULL;
10746       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10747       tree_view->priv->last_button_press_2 = NULL;
10748       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10749       tree_view->priv->scroll_to_path = NULL;
10750
10751       tree_view->priv->scroll_to_column = NULL;
10752
10753       g_object_unref (tree_view->priv->model);
10754
10755       tree_view->priv->search_column = -1;
10756       tree_view->priv->fixed_height_check = 0;
10757       tree_view->priv->fixed_height = -1;
10758       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10759     }
10760
10761   tree_view->priv->model = model;
10762
10763   if (tree_view->priv->model)
10764     {
10765       gint i;
10766       GtkTreePath *path;
10767       GtkTreeIter iter;
10768       GtkTreeModelFlags flags;
10769
10770       if (tree_view->priv->search_column == -1)
10771         {
10772           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10773             {
10774               GType type = gtk_tree_model_get_column_type (model, i);
10775
10776               if (g_value_type_transformable (type, G_TYPE_STRING))
10777                 {
10778                   tree_view->priv->search_column = i;
10779                   break;
10780                 }
10781             }
10782         }
10783
10784       g_object_ref (tree_view->priv->model);
10785       g_signal_connect (tree_view->priv->model,
10786                         "row_changed",
10787                         G_CALLBACK (gtk_tree_view_row_changed),
10788                         tree_view);
10789       g_signal_connect (tree_view->priv->model,
10790                         "row_inserted",
10791                         G_CALLBACK (gtk_tree_view_row_inserted),
10792                         tree_view);
10793       g_signal_connect (tree_view->priv->model,
10794                         "row_has_child_toggled",
10795                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10796                         tree_view);
10797       g_signal_connect (tree_view->priv->model,
10798                         "row_deleted",
10799                         G_CALLBACK (gtk_tree_view_row_deleted),
10800                         tree_view);
10801       g_signal_connect (tree_view->priv->model,
10802                         "rows_reordered",
10803                         G_CALLBACK (gtk_tree_view_rows_reordered),
10804                         tree_view);
10805
10806       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10807       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10808         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10809       else
10810         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10811
10812       path = gtk_tree_path_new_first ();
10813       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10814         {
10815           tree_view->priv->tree = _gtk_rbtree_new ();
10816           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10817         }
10818       gtk_tree_path_free (path);
10819
10820       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10821       install_presize_handler (tree_view);
10822     }
10823
10824   g_object_notify (G_OBJECT (tree_view), "model");
10825
10826   if (tree_view->priv->selection)
10827   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10828
10829   if (GTK_WIDGET_REALIZED (tree_view))
10830     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10831 }
10832
10833 /**
10834  * gtk_tree_view_get_selection:
10835  * @tree_view: A #GtkTreeView.
10836  *
10837  * Gets the #GtkTreeSelection associated with @tree_view.
10838  *
10839  * Return value: A #GtkTreeSelection object.
10840  **/
10841 GtkTreeSelection *
10842 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10843 {
10844   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10845
10846   return tree_view->priv->selection;
10847 }
10848
10849 /**
10850  * gtk_tree_view_get_hadjustment:
10851  * @tree_view: A #GtkTreeView
10852  *
10853  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10854  *
10855  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10856  * used.
10857  **/
10858 GtkAdjustment *
10859 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10860 {
10861   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10862
10863   if (tree_view->priv->hadjustment == NULL)
10864     gtk_tree_view_set_hadjustment (tree_view, NULL);
10865
10866   return tree_view->priv->hadjustment;
10867 }
10868
10869 /**
10870  * gtk_tree_view_set_hadjustment:
10871  * @tree_view: A #GtkTreeView
10872  * @adjustment: The #GtkAdjustment to set, or %NULL
10873  *
10874  * Sets the #GtkAdjustment for the current horizontal aspect.
10875  **/
10876 void
10877 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10878                                GtkAdjustment *adjustment)
10879 {
10880   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10881
10882   gtk_tree_view_set_adjustments (tree_view,
10883                                  adjustment,
10884                                  tree_view->priv->vadjustment);
10885
10886   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10887 }
10888
10889 /**
10890  * gtk_tree_view_get_vadjustment:
10891  * @tree_view: A #GtkTreeView
10892  *
10893  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10894  *
10895  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10896  * used.
10897  **/
10898 GtkAdjustment *
10899 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10900 {
10901   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10902
10903   if (tree_view->priv->vadjustment == NULL)
10904     gtk_tree_view_set_vadjustment (tree_view, NULL);
10905
10906   return tree_view->priv->vadjustment;
10907 }
10908
10909 /**
10910  * gtk_tree_view_set_vadjustment:
10911  * @tree_view: A #GtkTreeView
10912  * @adjustment: The #GtkAdjustment to set, or %NULL
10913  *
10914  * Sets the #GtkAdjustment for the current vertical aspect.
10915  **/
10916 void
10917 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10918                                GtkAdjustment *adjustment)
10919 {
10920   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10921
10922   gtk_tree_view_set_adjustments (tree_view,
10923                                  tree_view->priv->hadjustment,
10924                                  adjustment);
10925
10926   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10927 }
10928
10929 /* Column and header operations */
10930
10931 /**
10932  * gtk_tree_view_get_headers_visible:
10933  * @tree_view: A #GtkTreeView.
10934  *
10935  * Returns %TRUE if the headers on the @tree_view are visible.
10936  *
10937  * Return value: Whether the headers are visible or not.
10938  **/
10939 gboolean
10940 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10941 {
10942   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10943
10944   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10945 }
10946
10947 /**
10948  * gtk_tree_view_set_headers_visible:
10949  * @tree_view: A #GtkTreeView.
10950  * @headers_visible: %TRUE if the headers are visible
10951  *
10952  * Sets the visibility state of the headers.
10953  **/
10954 void
10955 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10956                                    gboolean     headers_visible)
10957 {
10958   gint x, y;
10959   GList *list;
10960   GtkTreeViewColumn *column;
10961
10962   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10963
10964   headers_visible = !! headers_visible;
10965
10966   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10967     return;
10968
10969   if (headers_visible)
10970     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10971   else
10972     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10973
10974   if (GTK_WIDGET_REALIZED (tree_view))
10975     {
10976       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10977       if (headers_visible)
10978         {
10979           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));
10980
10981           if (GTK_WIDGET_MAPPED (tree_view))
10982             gtk_tree_view_map_buttons (tree_view);
10983         }
10984       else
10985         {
10986           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10987
10988           for (list = tree_view->priv->columns; list; list = list->next)
10989             {
10990               column = list->data;
10991               gtk_widget_unmap (column->button);
10992             }
10993           gdk_window_hide (tree_view->priv->header_window);
10994         }
10995     }
10996
10997   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10998   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10999   tree_view->priv->vadjustment->lower = 0;
11000   tree_view->priv->vadjustment->upper = tree_view->priv->height;
11001   gtk_adjustment_changed (tree_view->priv->vadjustment);
11002
11003   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11004
11005   g_object_notify (G_OBJECT (tree_view), "headers-visible");
11006 }
11007
11008 /**
11009  * gtk_tree_view_columns_autosize:
11010  * @tree_view: A #GtkTreeView.
11011  *
11012  * Resizes all columns to their optimal width. Only works after the
11013  * treeview has been realized.
11014  **/
11015 void
11016 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11017 {
11018   gboolean dirty = FALSE;
11019   GList *list;
11020   GtkTreeViewColumn *column;
11021
11022   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11023
11024   for (list = tree_view->priv->columns; list; list = list->next)
11025     {
11026       column = list->data;
11027       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11028         continue;
11029       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11030       dirty = TRUE;
11031     }
11032
11033   if (dirty)
11034     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11035 }
11036
11037 /**
11038  * gtk_tree_view_set_headers_clickable:
11039  * @tree_view: A #GtkTreeView.
11040  * @setting: %TRUE if the columns are clickable.
11041  *
11042  * Allow the column title buttons to be clicked.
11043  **/
11044 void
11045 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11046                                      gboolean   setting)
11047 {
11048   GList *list;
11049
11050   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11051
11052   for (list = tree_view->priv->columns; list; list = list->next)
11053     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11054
11055   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11056 }
11057
11058
11059 /**
11060  * gtk_tree_view_get_headers_clickable:
11061  * @tree_view: A #GtkTreeView.
11062  *
11063  * Returns whether all header columns are clickable.
11064  *
11065  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11066  *
11067  * Since: 2.10
11068  **/
11069 gboolean
11070 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11071 {
11072   GList *list;
11073
11074   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11075
11076   for (list = tree_view->priv->columns; list; list = list->next)
11077     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11078       return FALSE;
11079
11080   return TRUE;
11081 }
11082
11083 /**
11084  * gtk_tree_view_set_rules_hint
11085  * @tree_view: a #GtkTreeView
11086  * @setting: %TRUE if the tree requires reading across rows
11087  *
11088  * This function tells GTK+ that the user interface for your
11089  * application requires users to read across tree rows and associate
11090  * cells with one another. By default, GTK+ will then render the tree
11091  * with alternating row colors. Do <emphasis>not</emphasis> use it
11092  * just because you prefer the appearance of the ruled tree; that's a
11093  * question for the theme. Some themes will draw tree rows in
11094  * alternating colors even when rules are turned off, and users who
11095  * prefer that appearance all the time can choose those themes. You
11096  * should call this function only as a <emphasis>semantic</emphasis>
11097  * hint to the theme engine that your tree makes alternating colors
11098  * useful from a functional standpoint (since it has lots of columns,
11099  * generally).
11100  *
11101  **/
11102 void
11103 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11104                               gboolean      setting)
11105 {
11106   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11107
11108   setting = setting != FALSE;
11109
11110   if (tree_view->priv->has_rules != setting)
11111     {
11112       tree_view->priv->has_rules = setting;
11113       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11114     }
11115
11116   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11117 }
11118
11119 /**
11120  * gtk_tree_view_get_rules_hint
11121  * @tree_view: a #GtkTreeView
11122  *
11123  * Gets the setting set by gtk_tree_view_set_rules_hint().
11124  *
11125  * Return value: %TRUE if rules are useful for the user of this tree
11126  **/
11127 gboolean
11128 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11129 {
11130   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11131
11132   return tree_view->priv->has_rules;
11133 }
11134
11135 /* Public Column functions
11136  */
11137
11138 /**
11139  * gtk_tree_view_append_column:
11140  * @tree_view: A #GtkTreeView.
11141  * @column: The #GtkTreeViewColumn to add.
11142  *
11143  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11144  * mode enabled, then @column must have its "sizing" property set to be
11145  * GTK_TREE_VIEW_COLUMN_FIXED.
11146  *
11147  * Return value: The number of columns in @tree_view after appending.
11148  **/
11149 gint
11150 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11151                              GtkTreeViewColumn *column)
11152 {
11153   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11154   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11155   g_return_val_if_fail (column->tree_view == NULL, -1);
11156
11157   return gtk_tree_view_insert_column (tree_view, column, -1);
11158 }
11159
11160
11161 /**
11162  * gtk_tree_view_remove_column:
11163  * @tree_view: A #GtkTreeView.
11164  * @column: The #GtkTreeViewColumn to remove.
11165  *
11166  * Removes @column from @tree_view.
11167  *
11168  * Return value: The number of columns in @tree_view after removing.
11169  **/
11170 gint
11171 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11172                              GtkTreeViewColumn *column)
11173 {
11174   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11175   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11176   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11177
11178   if (tree_view->priv->focus_column == column)
11179     tree_view->priv->focus_column = NULL;
11180
11181   if (tree_view->priv->edited_column == column)
11182     {
11183       gtk_tree_view_stop_editing (tree_view, TRUE);
11184
11185       /* no need to, but just to be sure ... */
11186       tree_view->priv->edited_column = NULL;
11187     }
11188
11189   g_signal_handlers_disconnect_by_func (column,
11190                                         G_CALLBACK (column_sizing_notify),
11191                                         tree_view);
11192
11193   _gtk_tree_view_column_unset_tree_view (column);
11194
11195   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11196   tree_view->priv->n_columns--;
11197
11198   if (GTK_WIDGET_REALIZED (tree_view))
11199     {
11200       GList *list;
11201
11202       _gtk_tree_view_column_unrealize_button (column);
11203       for (list = tree_view->priv->columns; list; list = list->next)
11204         {
11205           GtkTreeViewColumn *tmp_column;
11206
11207           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11208           if (tmp_column->visible)
11209             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11210         }
11211
11212       if (tree_view->priv->n_columns == 0 &&
11213           gtk_tree_view_get_headers_visible (tree_view))
11214         gdk_window_hide (tree_view->priv->header_window);
11215
11216       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11217     }
11218
11219   g_object_unref (column);
11220   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11221
11222   return tree_view->priv->n_columns;
11223 }
11224
11225 /**
11226  * gtk_tree_view_insert_column:
11227  * @tree_view: A #GtkTreeView.
11228  * @column: The #GtkTreeViewColumn to be inserted.
11229  * @position: The position to insert @column in.
11230  *
11231  * This inserts the @column into the @tree_view at @position.  If @position is
11232  * -1, then the column is inserted at the end. If @tree_view has
11233  * "fixed_height" mode enabled, then @column must have its "sizing" property
11234  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11235  *
11236  * Return value: The number of columns in @tree_view after insertion.
11237  **/
11238 gint
11239 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11240                              GtkTreeViewColumn *column,
11241                              gint               position)
11242 {
11243   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11244   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11245   g_return_val_if_fail (column->tree_view == NULL, -1);
11246
11247   if (tree_view->priv->fixed_height_mode)
11248     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11249                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11250
11251   g_object_ref_sink (column);
11252
11253   if (tree_view->priv->n_columns == 0 &&
11254       GTK_WIDGET_REALIZED (tree_view) &&
11255       gtk_tree_view_get_headers_visible (tree_view))
11256     {
11257       gdk_window_show (tree_view->priv->header_window);
11258     }
11259
11260   g_signal_connect (column, "notify::sizing",
11261                     G_CALLBACK (column_sizing_notify), tree_view);
11262
11263   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11264                                             column, position);
11265   tree_view->priv->n_columns++;
11266
11267   _gtk_tree_view_column_set_tree_view (column, tree_view);
11268
11269   if (GTK_WIDGET_REALIZED (tree_view))
11270     {
11271       GList *list;
11272
11273       _gtk_tree_view_column_realize_button (column);
11274
11275       for (list = tree_view->priv->columns; list; list = list->next)
11276         {
11277           column = GTK_TREE_VIEW_COLUMN (list->data);
11278           if (column->visible)
11279             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11280         }
11281       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11282     }
11283
11284   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11285
11286   return tree_view->priv->n_columns;
11287 }
11288
11289 /**
11290  * gtk_tree_view_insert_column_with_attributes:
11291  * @tree_view: A #GtkTreeView
11292  * @position: The position to insert the new column in.
11293  * @title: The title to set the header to.
11294  * @cell: The #GtkCellRenderer.
11295  * @Varargs: A %NULL-terminated list of attributes.
11296  *
11297  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11298  * @position.  If @position is -1, then the newly created column is inserted at
11299  * the end.  The column is initialized with the attributes given. If @tree_view
11300  * has "fixed_height" mode enabled, then the new column will have its sizing
11301  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11302  *
11303  * Return value: The number of columns in @tree_view after insertion.
11304  **/
11305 gint
11306 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11307                                              gint             position,
11308                                              const gchar     *title,
11309                                              GtkCellRenderer *cell,
11310                                              ...)
11311 {
11312   GtkTreeViewColumn *column;
11313   gchar *attribute;
11314   va_list args;
11315   gint column_id;
11316
11317   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11318
11319   column = gtk_tree_view_column_new ();
11320   if (tree_view->priv->fixed_height_mode)
11321     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11322
11323   gtk_tree_view_column_set_title (column, title);
11324   gtk_tree_view_column_pack_start (column, cell, TRUE);
11325
11326   va_start (args, cell);
11327
11328   attribute = va_arg (args, gchar *);
11329
11330   while (attribute != NULL)
11331     {
11332       column_id = va_arg (args, gint);
11333       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11334       attribute = va_arg (args, gchar *);
11335     }
11336
11337   va_end (args);
11338
11339   gtk_tree_view_insert_column (tree_view, column, position);
11340
11341   return tree_view->priv->n_columns;
11342 }
11343
11344 /**
11345  * gtk_tree_view_insert_column_with_data_func:
11346  * @tree_view: a #GtkTreeView
11347  * @position: Position to insert, -1 for append
11348  * @title: column title
11349  * @cell: cell renderer for column
11350  * @func: function to set attributes of cell renderer
11351  * @data: data for @func
11352  * @dnotify: destroy notifier for @data
11353  *
11354  * Convenience function that inserts a new column into the #GtkTreeView
11355  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11356  * attributes (normally using data from the model). See also
11357  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11358  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11359  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11360  *
11361  * Return value: number of columns in the tree view post-insert
11362  **/
11363 gint
11364 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11365                                              gint                       position,
11366                                              const gchar               *title,
11367                                              GtkCellRenderer           *cell,
11368                                              GtkTreeCellDataFunc        func,
11369                                              gpointer                   data,
11370                                              GDestroyNotify             dnotify)
11371 {
11372   GtkTreeViewColumn *column;
11373
11374   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11375
11376   column = gtk_tree_view_column_new ();
11377   if (tree_view->priv->fixed_height_mode)
11378     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11379
11380   gtk_tree_view_column_set_title (column, title);
11381   gtk_tree_view_column_pack_start (column, cell, TRUE);
11382   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11383
11384   gtk_tree_view_insert_column (tree_view, column, position);
11385
11386   return tree_view->priv->n_columns;
11387 }
11388
11389 /**
11390  * gtk_tree_view_get_column:
11391  * @tree_view: A #GtkTreeView.
11392  * @n: The position of the column, counting from 0.
11393  *
11394  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11395  *
11396  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11397  * range of columns.
11398  **/
11399 GtkTreeViewColumn *
11400 gtk_tree_view_get_column (GtkTreeView *tree_view,
11401                           gint         n)
11402 {
11403   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11404
11405   if (n < 0 || n >= tree_view->priv->n_columns)
11406     return NULL;
11407
11408   if (tree_view->priv->columns == NULL)
11409     return NULL;
11410
11411   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11412 }
11413
11414 /**
11415  * gtk_tree_view_get_columns:
11416  * @tree_view: A #GtkTreeView
11417  *
11418  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11419  * The returned list must be freed with g_list_free ().
11420  *
11421  * Return value: A list of #GtkTreeViewColumn s
11422  **/
11423 GList *
11424 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11425 {
11426   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11427
11428   return g_list_copy (tree_view->priv->columns);
11429 }
11430
11431 /**
11432  * gtk_tree_view_move_column_after:
11433  * @tree_view: A #GtkTreeView
11434  * @column: The #GtkTreeViewColumn to be moved.
11435  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11436  *
11437  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11438  * @column is placed in the first position.
11439  **/
11440 void
11441 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11442                                  GtkTreeViewColumn *column,
11443                                  GtkTreeViewColumn *base_column)
11444 {
11445   GList *column_list_el, *base_el = NULL;
11446
11447   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11448
11449   column_list_el = g_list_find (tree_view->priv->columns, column);
11450   g_return_if_fail (column_list_el != NULL);
11451
11452   if (base_column)
11453     {
11454       base_el = g_list_find (tree_view->priv->columns, base_column);
11455       g_return_if_fail (base_el != NULL);
11456     }
11457
11458   if (column_list_el->prev == base_el)
11459     return;
11460
11461   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11462   if (base_el == NULL)
11463     {
11464       column_list_el->prev = NULL;
11465       column_list_el->next = tree_view->priv->columns;
11466       if (column_list_el->next)
11467         column_list_el->next->prev = column_list_el;
11468       tree_view->priv->columns = column_list_el;
11469     }
11470   else
11471     {
11472       column_list_el->prev = base_el;
11473       column_list_el->next = base_el->next;
11474       if (column_list_el->next)
11475         column_list_el->next->prev = column_list_el;
11476       base_el->next = column_list_el;
11477     }
11478
11479   if (GTK_WIDGET_REALIZED (tree_view))
11480     {
11481       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11482       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view));
11483     }
11484
11485   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11486 }
11487
11488 /**
11489  * gtk_tree_view_set_expander_column:
11490  * @tree_view: A #GtkTreeView
11491  * @column: %NULL, or the column to draw the expander arrow at.
11492  *
11493  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11494  * If @column is %NULL, then the expander arrow is always at the first
11495  * visible column.
11496  *
11497  * If you do not want expander arrow to appear in your tree, set the
11498  * expander column to a hidden column.
11499  **/
11500 void
11501 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11502                                    GtkTreeViewColumn *column)
11503 {
11504   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11505   if (column != NULL)
11506     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
11507
11508   if (tree_view->priv->expander_column != column)
11509     {
11510       GList *list;
11511
11512       if (column)
11513         {
11514           /* Confirm that column is in tree_view */
11515           for (list = tree_view->priv->columns; list; list = list->next)
11516             if (list->data == column)
11517               break;
11518           g_return_if_fail (list != NULL);
11519         }
11520
11521       tree_view->priv->expander_column = column;
11522       g_object_notify (G_OBJECT (tree_view), "expander-column");
11523     }
11524 }
11525
11526 /**
11527  * gtk_tree_view_get_expander_column:
11528  * @tree_view: A #GtkTreeView
11529  *
11530  * Returns the column that is the current expander column.  This
11531  * column has the expander arrow drawn next to it.
11532  *
11533  * Return value: The expander column.
11534  **/
11535 GtkTreeViewColumn *
11536 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11537 {
11538   GList *list;
11539
11540   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11541
11542   for (list = tree_view->priv->columns; list; list = list->next)
11543     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11544       return (GtkTreeViewColumn *) list->data;
11545   return NULL;
11546 }
11547
11548
11549 /**
11550  * gtk_tree_view_set_column_drag_function:
11551  * @tree_view: A #GtkTreeView.
11552  * @func: A function to determine which columns are reorderable, or %NULL.
11553  * @user_data: User data to be passed to @func, or %NULL
11554  * @destroy: Destroy notifier for @user_data, or %NULL
11555  *
11556  * Sets a user function for determining where a column may be dropped when
11557  * dragged.  This function is called on every column pair in turn at the
11558  * beginning of a column drag to determine where a drop can take place.  The
11559  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11560  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11561  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11562  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11563  * @tree_view reverts to the default behavior of allowing all columns to be
11564  * dropped everywhere.
11565  **/
11566 void
11567 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11568                                         GtkTreeViewColumnDropFunc  func,
11569                                         gpointer                   user_data,
11570                                         GtkDestroyNotify           destroy)
11571 {
11572   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11573
11574   if (tree_view->priv->column_drop_func_data_destroy)
11575     (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
11576
11577   tree_view->priv->column_drop_func = func;
11578   tree_view->priv->column_drop_func_data = user_data;
11579   tree_view->priv->column_drop_func_data_destroy = destroy;
11580 }
11581
11582 /**
11583  * gtk_tree_view_scroll_to_point:
11584  * @tree_view: a #GtkTreeView
11585  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11586  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11587  *
11588  * Scrolls the tree view such that the top-left corner of the visible
11589  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11590  * in tree coordinates.  The @tree_view must be realized before
11591  * this function is called.  If it isn't, you probably want to be
11592  * using gtk_tree_view_scroll_to_cell().
11593  *
11594  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11595  **/
11596 void
11597 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11598                                gint         tree_x,
11599                                gint         tree_y)
11600 {
11601   GtkAdjustment *hadj;
11602   GtkAdjustment *vadj;
11603
11604   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11605   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11606
11607   hadj = tree_view->priv->hadjustment;
11608   vadj = tree_view->priv->vadjustment;
11609
11610   if (tree_x != -1)
11611     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11612   if (tree_y != -1)
11613     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11614 }
11615
11616 /**
11617  * gtk_tree_view_scroll_to_cell:
11618  * @tree_view: A #GtkTreeView.
11619  * @path: The path of the row to move to, or %NULL.
11620  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11621  * @use_align: whether to use alignment arguments, or %FALSE.
11622  * @row_align: The vertical alignment of the row specified by @path.
11623  * @col_align: The horizontal alignment of the column specified by @column.
11624  *
11625  * Moves the alignments of @tree_view to the position specified by @column and
11626  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11627  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11628  * or @path need to be non-%NULL.  @row_align determines where the row is
11629  * placed, and @col_align determines where @column is placed.  Both are expected
11630  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11631  * right/bottom alignment, 0.5 means center.
11632  *
11633  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11634  * tree does the minimum amount of work to scroll the cell onto the screen.
11635  * This means that the cell will be scrolled to the edge closest to its current
11636  * position.  If the cell is currently visible on the screen, nothing is done.
11637  *
11638  * This function only works if the model is set, and @path is a valid row on the
11639  * model.  If the model changes before the @tree_view is realized, the centered
11640  * path will be modified to reflect this change.
11641  **/
11642 void
11643 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11644                               GtkTreePath       *path,
11645                               GtkTreeViewColumn *column,
11646                               gboolean           use_align,
11647                               gfloat             row_align,
11648                               gfloat             col_align)
11649 {
11650   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11651   g_return_if_fail (tree_view->priv->model != NULL);
11652   g_return_if_fail (tree_view->priv->tree != NULL);
11653   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11654   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11655   g_return_if_fail (path != NULL || column != NULL);
11656
11657 #if 0
11658   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11659            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11660 #endif
11661   row_align = CLAMP (row_align, 0.0, 1.0);
11662   col_align = CLAMP (col_align, 0.0, 1.0);
11663
11664
11665   /* Note: Despite the benefits that come from having one code path for the
11666    * scrolling code, we short-circuit validate_visible_area's immplementation as
11667    * it is much slower than just going to the point.
11668    */
11669   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11670       ! GTK_WIDGET_REALIZED (tree_view) ||
11671       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11672       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11673     {
11674       if (tree_view->priv->scroll_to_path)
11675         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11676
11677       tree_view->priv->scroll_to_path = NULL;
11678       tree_view->priv->scroll_to_column = NULL;
11679
11680       if (path)
11681         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11682       if (column)
11683         tree_view->priv->scroll_to_column = column;
11684       tree_view->priv->scroll_to_use_align = use_align;
11685       tree_view->priv->scroll_to_row_align = row_align;
11686       tree_view->priv->scroll_to_col_align = col_align;
11687
11688       install_presize_handler (tree_view);
11689     }
11690   else
11691     {
11692       GdkRectangle cell_rect;
11693       GdkRectangle vis_rect;
11694       gint dest_x, dest_y;
11695
11696       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11697       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11698
11699       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11700
11701       dest_x = vis_rect.x;
11702       dest_y = vis_rect.y;
11703
11704       if (column)
11705         {
11706           if (use_align)
11707             {
11708               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11709             }
11710           else
11711             {
11712               if (cell_rect.x < vis_rect.x)
11713                 dest_x = cell_rect.x;
11714               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11715                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11716             }
11717         }
11718
11719       if (path)
11720         {
11721           if (use_align)
11722             {
11723               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11724               dest_y = MAX (dest_y, 0);
11725             }
11726           else
11727             {
11728               if (cell_rect.y < vis_rect.y)
11729                 dest_y = cell_rect.y;
11730               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11731                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11732             }
11733         }
11734
11735       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11736     }
11737 }
11738
11739 /**
11740  * gtk_tree_view_row_activated:
11741  * @tree_view: A #GtkTreeView
11742  * @path: The #GtkTreePath to be activated.
11743  * @column: The #GtkTreeViewColumn to be activated.
11744  *
11745  * Activates the cell determined by @path and @column.
11746  **/
11747 void
11748 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11749                              GtkTreePath       *path,
11750                              GtkTreeViewColumn *column)
11751 {
11752   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11753
11754   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11755 }
11756
11757
11758 static void
11759 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11760                                           GtkRBNode *node,
11761                                           gpointer   data)
11762 {
11763   GtkTreeView *tree_view = data;
11764
11765   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11766       node->children)
11767     {
11768       GtkTreePath *path;
11769       GtkTreeIter iter;
11770
11771       path = _gtk_tree_view_find_path (tree_view, tree, node);
11772       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11773
11774       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11775
11776       gtk_tree_path_free (path);
11777     }
11778
11779   if (node->children)
11780     _gtk_rbtree_traverse (node->children,
11781                           node->children->root,
11782                           G_PRE_ORDER,
11783                           gtk_tree_view_expand_all_emission_helper,
11784                           tree_view);
11785 }
11786 /**
11787  * gtk_tree_view_expand_all:
11788  * @tree_view: A #GtkTreeView.
11789  *
11790  * Recursively expands all nodes in the @tree_view.
11791  **/
11792 void
11793 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11794 {
11795   GtkTreePath *path;
11796   GtkRBTree *tree;
11797   GtkRBNode *node;
11798
11799   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11800
11801   if (tree_view->priv->tree == NULL)
11802     return;
11803
11804   path = gtk_tree_path_new_first ();
11805   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11806
11807   while (node)
11808     {
11809       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11810       node = _gtk_rbtree_next (tree, node);
11811       gtk_tree_path_next (path);
11812   }
11813
11814   gtk_tree_path_free (path);
11815 }
11816
11817 /* Timeout to animate the expander during expands and collapses */
11818 static gboolean
11819 expand_collapse_timeout (gpointer data)
11820 {
11821   return do_expand_collapse (data);
11822 }
11823
11824 static gboolean
11825 do_expand_collapse (GtkTreeView *tree_view)
11826 {
11827   GtkRBNode *node;
11828   GtkRBTree *tree;
11829   gboolean expanding;
11830   gboolean redraw;
11831
11832   redraw = FALSE;
11833   expanding = TRUE;
11834
11835   node = tree_view->priv->expanded_collapsed_node;
11836   tree = tree_view->priv->expanded_collapsed_tree;
11837
11838   if (node->children == NULL)
11839     expanding = FALSE;
11840
11841   if (expanding)
11842     {
11843       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11844         {
11845           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11846           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11847
11848           redraw = TRUE;
11849
11850         }
11851       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11852         {
11853           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11854
11855           redraw = TRUE;
11856         }
11857     }
11858   else
11859     {
11860       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11861         {
11862           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11863           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11864
11865           redraw = TRUE;
11866         }
11867       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11868         {
11869           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11870
11871           redraw = TRUE;
11872
11873         }
11874     }
11875
11876   if (redraw)
11877     {
11878       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11879
11880       return TRUE;
11881     }
11882
11883   return FALSE;
11884 }
11885
11886 /**
11887  * gtk_tree_view_collapse_all:
11888  * @tree_view: A #GtkTreeView.
11889  *
11890  * Recursively collapses all visible, expanded nodes in @tree_view.
11891  **/
11892 void
11893 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11894 {
11895   GtkRBTree *tree;
11896   GtkRBNode *node;
11897   GtkTreePath *path;
11898   gint *indices;
11899
11900   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11901
11902   if (tree_view->priv->tree == NULL)
11903     return;
11904
11905   path = gtk_tree_path_new ();
11906   gtk_tree_path_down (path);
11907   indices = gtk_tree_path_get_indices (path);
11908
11909   tree = tree_view->priv->tree;
11910   node = tree->root;
11911   while (node && node->left != tree->nil)
11912     node = node->left;
11913
11914   while (node)
11915     {
11916       if (node->children)
11917         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11918       indices[0]++;
11919       node = _gtk_rbtree_next (tree, node);
11920     }
11921
11922   gtk_tree_path_free (path);
11923 }
11924
11925 /**
11926  * gtk_tree_view_expand_to_path:
11927  * @tree_view: A #GtkTreeView.
11928  * @path: path to a row.
11929  *
11930  * Expands the row at @path. This will also expand all parent rows of
11931  * @path as necessary.
11932  *
11933  * Since: 2.2
11934  **/
11935 void
11936 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11937                               GtkTreePath *path)
11938 {
11939   gint i, depth;
11940   gint *indices;
11941   GtkTreePath *tmp;
11942
11943   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11944   g_return_if_fail (path != NULL);
11945
11946   depth = gtk_tree_path_get_depth (path);
11947   indices = gtk_tree_path_get_indices (path);
11948
11949   tmp = gtk_tree_path_new ();
11950   g_return_if_fail (tmp != NULL);
11951
11952   for (i = 0; i < depth; i++)
11953     {
11954       gtk_tree_path_append_index (tmp, indices[i]);
11955       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11956     }
11957
11958   gtk_tree_path_free (tmp);
11959 }
11960
11961 /* FIXME the bool return values for expand_row and collapse_row are
11962  * not analagous; they should be TRUE if the row had children and
11963  * was not already in the requested state.
11964  */
11965
11966
11967 static gboolean
11968 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
11969                                GtkTreePath *path,
11970                                GtkRBTree   *tree,
11971                                GtkRBNode   *node,
11972                                gboolean     open_all,
11973                                gboolean     animate)
11974 {
11975   GtkTreeIter iter;
11976   GtkTreeIter temp;
11977   gboolean expand;
11978
11979   if (animate)
11980     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11981                   "gtk-enable-animations", &animate,
11982                   NULL);
11983
11984   remove_auto_expand_timeout (tree_view);
11985
11986   if (node->children && !open_all)
11987     return FALSE;
11988
11989   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
11990     return FALSE;
11991
11992   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11993   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11994     return FALSE;
11995
11996
11997    if (node->children && open_all)
11998     {
11999       gboolean retval = FALSE;
12000       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12001
12002       gtk_tree_path_append_index (tmp_path, 0);
12003       tree = node->children;
12004       node = tree->root;
12005       while (node->left != tree->nil)
12006         node = node->left;
12007       /* try to expand the children */
12008       do
12009         {
12010          gboolean t;
12011          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12012                                             TRUE, animate);
12013          if (t)
12014            retval = TRUE;
12015
12016          gtk_tree_path_next (tmp_path);
12017          node = _gtk_rbtree_next (tree, node);
12018        }
12019       while (node != NULL);
12020
12021       gtk_tree_path_free (tmp_path);
12022
12023       return retval;
12024     }
12025
12026   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12027
12028   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12029     return FALSE;
12030
12031   if (expand)
12032     return FALSE;
12033
12034   node->children = _gtk_rbtree_new ();
12035   node->children->parent_tree = tree;
12036   node->children->parent_node = node;
12037
12038   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12039
12040   gtk_tree_view_build_tree (tree_view,
12041                             node->children,
12042                             &temp,
12043                             gtk_tree_path_get_depth (path) + 1,
12044                             open_all);
12045
12046   if (tree_view->priv->expand_collapse_timeout)
12047     {
12048       g_source_remove (tree_view->priv->expand_collapse_timeout);
12049       tree_view->priv->expand_collapse_timeout = 0;
12050     }
12051
12052   if (tree_view->priv->expanded_collapsed_node != NULL)
12053     {
12054       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
12055       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12056
12057       tree_view->priv->expanded_collapsed_node = NULL;
12058     }
12059
12060   if (animate)
12061     {
12062       tree_view->priv->expand_collapse_timeout = gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
12063       tree_view->priv->expanded_collapsed_node = node;
12064       tree_view->priv->expanded_collapsed_tree = tree;
12065
12066       GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12067     }
12068
12069   install_presize_handler (tree_view);
12070
12071   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12072   if (open_all && node->children)
12073     {
12074       _gtk_rbtree_traverse (node->children,
12075                             node->children->root,
12076                             G_PRE_ORDER,
12077                             gtk_tree_view_expand_all_emission_helper,
12078                             tree_view);
12079     }
12080   return TRUE;
12081 }
12082
12083
12084 /**
12085  * gtk_tree_view_expand_row:
12086  * @tree_view: a #GtkTreeView
12087  * @path: path to a row
12088  * @open_all: whether to recursively expand, or just expand immediate children
12089  *
12090  * Opens the row so its children are visible.
12091  *
12092  * Return value: %TRUE if the row existed and had children
12093  **/
12094 gboolean
12095 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12096                           GtkTreePath *path,
12097                           gboolean     open_all)
12098 {
12099   GtkRBTree *tree;
12100   GtkRBNode *node;
12101
12102   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12103   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12104   g_return_val_if_fail (path != NULL, FALSE);
12105
12106   if (_gtk_tree_view_find_node (tree_view,
12107                                 path,
12108                                 &tree,
12109                                 &node))
12110     return FALSE;
12111
12112   if (tree != NULL)
12113     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12114   else
12115     return FALSE;
12116 }
12117
12118 static gboolean
12119 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12120                                  GtkTreePath *path,
12121                                  GtkRBTree   *tree,
12122                                  GtkRBNode   *node,
12123                                  gboolean     animate)
12124 {
12125   GtkTreeIter iter;
12126   GtkTreeIter children;
12127   gboolean collapse;
12128   gint x, y;
12129   GList *list;
12130   GdkWindow *child, *parent;
12131
12132   if (animate)
12133     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12134                   "gtk-enable-animations", &animate,
12135                   NULL);
12136
12137   remove_auto_expand_timeout (tree_view);
12138
12139   if (node->children == NULL)
12140     return FALSE;
12141
12142   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12143
12144   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12145
12146   if (collapse)
12147     return FALSE;
12148
12149   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12150    * a chance to prelight the correct node below */
12151
12152   if (tree_view->priv->prelight_tree)
12153     {
12154       GtkRBTree *parent_tree;
12155       GtkRBNode *parent_node;
12156
12157       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12158       parent_node = tree_view->priv->prelight_tree->parent_node;
12159       while (parent_tree)
12160         {
12161           if (parent_tree == tree && parent_node == node)
12162             {
12163               ensure_unprelighted (tree_view);
12164               break;
12165             }
12166           parent_node = parent_tree->parent_node;
12167           parent_tree = parent_tree->parent_tree;
12168         }
12169     }
12170
12171   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12172
12173   for (list = tree_view->priv->columns; list; list = list->next)
12174     {
12175       GtkTreeViewColumn *column = list->data;
12176
12177       if (column->visible == FALSE)
12178         continue;
12179       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12180         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12181     }
12182
12183   if (tree_view->priv->destroy_count_func)
12184     {
12185       GtkTreePath *child_path;
12186       gint child_count = 0;
12187       child_path = gtk_tree_path_copy (path);
12188       gtk_tree_path_down (child_path);
12189       if (node->children)
12190         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12191       (* tree_view->priv->destroy_count_func) (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12192       gtk_tree_path_free (child_path);
12193     }
12194
12195   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12196     {
12197       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12198
12199       if (gtk_tree_path_is_ancestor (path, cursor_path))
12200         {
12201           gtk_tree_row_reference_free (tree_view->priv->cursor);
12202           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12203                                                                       tree_view->priv->model,
12204                                                                       path);
12205         }
12206       gtk_tree_path_free (cursor_path);
12207     }
12208
12209   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12210     {
12211       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12212       if (gtk_tree_path_is_ancestor (path, anchor_path))
12213         {
12214           gtk_tree_row_reference_free (tree_view->priv->anchor);
12215           tree_view->priv->anchor = NULL;
12216         }
12217       gtk_tree_path_free (anchor_path);
12218     }
12219
12220   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12221     {
12222       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12223       if (gtk_tree_path_is_ancestor (path, lsc))
12224         {
12225           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12226           tree_view->priv->last_button_press = NULL;
12227         }
12228       gtk_tree_path_free (lsc);
12229     }
12230
12231   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12232     {
12233       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12234       if (gtk_tree_path_is_ancestor (path, lsc))
12235         {
12236           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12237           tree_view->priv->last_button_press_2 = NULL;
12238         }
12239       gtk_tree_path_free (lsc);
12240     }
12241
12242   if (tree_view->priv->expanded_collapsed_node != NULL)
12243     {
12244       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
12245       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
12246
12247       tree_view->priv->expanded_collapsed_node = NULL;
12248     }
12249
12250   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12251     {
12252       _gtk_rbtree_remove (node->children);
12253       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12254     }
12255   else
12256     _gtk_rbtree_remove (node->children);
12257
12258   if (tree_view->priv->expand_collapse_timeout)
12259     {
12260       g_source_remove (tree_view->priv->expand_collapse_timeout);
12261       tree_view->priv->expand_collapse_timeout = 0;
12262     }
12263
12264   if (animate)
12265     {
12266       tree_view->priv->expand_collapse_timeout = gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
12267       tree_view->priv->expanded_collapsed_node = node;
12268       tree_view->priv->expanded_collapsed_tree = tree;
12269
12270       GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
12271     }
12272
12273   if (GTK_WIDGET_MAPPED (tree_view))
12274     {
12275       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12276     }
12277
12278   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12279
12280   if (GTK_WIDGET_MAPPED (tree_view))
12281     {
12282       /* now that we've collapsed all rows, we want to try to set the prelight
12283        * again. To do this, we fake a motion event and send it to ourselves. */
12284
12285       child = tree_view->priv->bin_window;
12286       parent = gdk_window_get_parent (child);
12287
12288       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12289         {
12290           GdkEventMotion event;
12291           gint child_x, child_y;
12292
12293           gdk_window_get_position (child, &child_x, &child_y);
12294
12295           event.window = tree_view->priv->bin_window;
12296           event.x = x - child_x;
12297           event.y = y - child_y;
12298
12299           /* despite the fact this isn't a real event, I'm almost positive it will
12300            * never trigger a drag event.  maybe_drag is the only function that uses
12301            * more than just event.x and event.y. */
12302           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12303         }
12304     }
12305
12306   return TRUE;
12307 }
12308
12309 /**
12310  * gtk_tree_view_collapse_row:
12311  * @tree_view: a #GtkTreeView
12312  * @path: path to a row in the @tree_view
12313  *
12314  * Collapses a row (hides its child rows, if they exist).
12315  *
12316  * Return value: %TRUE if the row was collapsed.
12317  **/
12318 gboolean
12319 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12320                             GtkTreePath *path)
12321 {
12322   GtkRBTree *tree;
12323   GtkRBNode *node;
12324
12325   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12326   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12327   g_return_val_if_fail (path != NULL, FALSE);
12328
12329   if (_gtk_tree_view_find_node (tree_view,
12330                                 path,
12331                                 &tree,
12332                                 &node))
12333     return FALSE;
12334
12335   if (tree == NULL || node->children == NULL)
12336     return FALSE;
12337
12338   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12339 }
12340
12341 static void
12342 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12343                                         GtkRBTree              *tree,
12344                                         GtkTreePath            *path,
12345                                         GtkTreeViewMappingFunc  func,
12346                                         gpointer                user_data)
12347 {
12348   GtkRBNode *node;
12349
12350   if (tree == NULL || tree->root == NULL)
12351     return;
12352
12353   node = tree->root;
12354
12355   while (node && node->left != tree->nil)
12356     node = node->left;
12357
12358   while (node)
12359     {
12360       if (node->children)
12361         {
12362           (* func) (tree_view, path, user_data);
12363           gtk_tree_path_down (path);
12364           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12365           gtk_tree_path_up (path);
12366         }
12367       gtk_tree_path_next (path);
12368       node = _gtk_rbtree_next (tree, node);
12369     }
12370 }
12371
12372 /**
12373  * gtk_tree_view_map_expanded_rows:
12374  * @tree_view: A #GtkTreeView
12375  * @func: A function to be called
12376  * @data: User data to be passed to the function.
12377  *
12378  * Calls @func on all expanded rows.
12379  **/
12380 void
12381 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12382                                  GtkTreeViewMappingFunc  func,
12383                                  gpointer                user_data)
12384 {
12385   GtkTreePath *path;
12386
12387   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12388   g_return_if_fail (func != NULL);
12389
12390   path = gtk_tree_path_new_first ();
12391
12392   gtk_tree_view_map_expanded_rows_helper (tree_view,
12393                                           tree_view->priv->tree,
12394                                           path, func, user_data);
12395
12396   gtk_tree_path_free (path);
12397 }
12398
12399 /**
12400  * gtk_tree_view_row_expanded:
12401  * @tree_view: A #GtkTreeView.
12402  * @path: A #GtkTreePath to test expansion state.
12403  *
12404  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12405  *
12406  * Return value: %TRUE if #path is expanded.
12407  **/
12408 gboolean
12409 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12410                             GtkTreePath *path)
12411 {
12412   GtkRBTree *tree;
12413   GtkRBNode *node;
12414
12415   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12416   g_return_val_if_fail (path != NULL, FALSE);
12417
12418   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12419
12420   if (node == NULL)
12421     return FALSE;
12422
12423   return (node->children != NULL);
12424 }
12425
12426 static const GtkTargetEntry row_targets[] = {
12427   { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12428 };
12429
12430
12431 /**
12432  * gtk_tree_view_get_reorderable:
12433  * @tree_view: a #GtkTreeView
12434  *
12435  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12436  * gtk_tree_view_set_reorderable().
12437  *
12438  * Return value: %TRUE if the tree can be reordered.
12439  **/
12440 gboolean
12441 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12442 {
12443   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12444
12445   return tree_view->priv->reorderable;
12446 }
12447
12448 /**
12449  * gtk_tree_view_set_reorderable:
12450  * @tree_view: A #GtkTreeView.
12451  * @reorderable: %TRUE, if the tree can be reordered.
12452  *
12453  * This function is a convenience function to allow you to reorder models that
12454  * support the #GtkDragSourceIface and the #GtkDragDestIface.  Both
12455  * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
12456  * the user can reorder the model by dragging and dropping rows.  The
12457  * developer can listen to these changes by connecting to the model's
12458  * row_inserted and row_deleted signals.
12459  *
12460  * This function does not give you any degree of control over the order -- any
12461  * reordering is allowed.  If more control is needed, you should probably
12462  * handle drag and drop manually.
12463  **/
12464 void
12465 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12466                                gboolean     reorderable)
12467 {
12468   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12469
12470   reorderable = reorderable != FALSE;
12471
12472   if (tree_view->priv->reorderable == reorderable)
12473     return;
12474
12475   if (reorderable)
12476     {
12477       gtk_tree_view_enable_model_drag_source (tree_view,
12478                                               GDK_BUTTON1_MASK,
12479                                               row_targets,
12480                                               G_N_ELEMENTS (row_targets),
12481                                               GDK_ACTION_MOVE);
12482       gtk_tree_view_enable_model_drag_dest (tree_view,
12483                                             row_targets,
12484                                             G_N_ELEMENTS (row_targets),
12485                                             GDK_ACTION_MOVE);
12486     }
12487   else
12488     {
12489       gtk_tree_view_unset_rows_drag_source (tree_view);
12490       gtk_tree_view_unset_rows_drag_dest (tree_view);
12491     }
12492
12493   tree_view->priv->reorderable = reorderable;
12494
12495   g_object_notify (G_OBJECT (tree_view), "reorderable");
12496 }
12497
12498 static void
12499 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12500                                GtkTreePath     *path,
12501                                gboolean         clear_and_select,
12502                                gboolean         clamp_node)
12503 {
12504   GtkRBTree *tree = NULL;
12505   GtkRBNode *node = NULL;
12506
12507   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12508     {
12509       GtkTreePath *cursor_path;
12510       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12511       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12512       gtk_tree_path_free (cursor_path);
12513     }
12514
12515   gtk_tree_row_reference_free (tree_view->priv->cursor);
12516   tree_view->priv->cursor = NULL;
12517
12518   /* One cannot set the cursor on a separator. */
12519   if (!row_is_separator (tree_view, NULL, path))
12520     {
12521       tree_view->priv->cursor =
12522         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12523                                           tree_view->priv->model,
12524                                           path);
12525       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12526     }
12527
12528   if (tree != NULL)
12529     {
12530       GtkRBTree *new_tree = NULL;
12531       GtkRBNode *new_node = NULL;
12532
12533       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12534         {
12535           GtkTreeSelectMode mode = 0;
12536
12537           if (tree_view->priv->ctrl_pressed)
12538             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12539           if (tree_view->priv->shift_pressed)
12540             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12541
12542           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12543                                                     node, tree, path, mode,
12544                                                     FALSE);
12545         }
12546
12547       /* We have to re-find tree and node here again, somebody might have
12548        * cleared the node or the whole tree in the GtkTreeSelection::changed
12549        * callback. If the nodes differ we bail out here.
12550        */
12551       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12552
12553       if (tree != new_tree || node != new_node)
12554         return;
12555
12556       if (clamp_node)
12557         {
12558           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12559           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12560         }
12561     }
12562
12563   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12564 }
12565
12566 /**
12567  * gtk_tree_view_get_cursor:
12568  * @tree_view: A #GtkTreeView
12569  * @path: A pointer to be filled with the current cursor path, or %NULL
12570  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12571  *
12572  * Fills in @path and @focus_column with the current path and focus column.  If
12573  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12574  * currently has focus, then *@focus_column will be %NULL.
12575  *
12576  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12577  * you are done with it.
12578  **/
12579 void
12580 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12581                           GtkTreePath       **path,
12582                           GtkTreeViewColumn **focus_column)
12583 {
12584   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12585
12586   if (path)
12587     {
12588       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12589         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12590       else
12591         *path = NULL;
12592     }
12593
12594   if (focus_column)
12595     {
12596       *focus_column = tree_view->priv->focus_column;
12597     }
12598 }
12599
12600 /**
12601  * gtk_tree_view_set_cursor:
12602  * @tree_view: A #GtkTreeView
12603  * @path: A #GtkTreePath
12604  * @focus_column: A #GtkTreeViewColumn, or %NULL
12605  * @start_editing: %TRUE if the specified cell should start being edited.
12606  *
12607  * Sets the current keyboard focus to be at @path, and selects it.  This is
12608  * useful when you want to focus the user's attention on a particular row.  If
12609  * @focus_column is not %NULL, then focus is given to the column specified by
12610  * it. Additionally, if @focus_column is specified, and @start_editing is
12611  * %TRUE, then editing should be started in the specified cell.
12612  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12613  * in order to give keyboard focus to the widget.  Please note that editing
12614  * can only happen when the widget is realized.
12615  **/
12616 void
12617 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12618                           GtkTreePath       *path,
12619                           GtkTreeViewColumn *focus_column,
12620                           gboolean           start_editing)
12621 {
12622   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12623                                     NULL, start_editing);
12624 }
12625
12626 /**
12627  * gtk_tree_view_set_cursor_on_cell:
12628  * @tree_view: A #GtkTreeView
12629  * @path: A #GtkTreePath
12630  * @focus_column: A #GtkTreeViewColumn, or %NULL
12631  * @focus_cell: A #GtkCellRenderer, or %NULL
12632  * @start_editing: %TRUE if the specified cell should start being edited.
12633  *
12634  * Sets the current keyboard focus to be at @path, and selects it.  This is
12635  * useful when you want to focus the user's attention on a particular row.  If
12636  * @focus_column is not %NULL, then focus is given to the column specified by
12637  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12638  * contains 2 or more editable or activatable cells, then focus is given to
12639  * the cell specified by @focus_cell. Additionally, if @focus_column is
12640  * specified, and @start_editing is %TRUE, then editing should be started in
12641  * the specified cell.  This function is often followed by
12642  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12643  * widget.  Please note that editing can only happen when the widget is
12644  * realized.
12645  *
12646  * Since: 2.2
12647  **/
12648 void
12649 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12650                                   GtkTreePath       *path,
12651                                   GtkTreeViewColumn *focus_column,
12652                                   GtkCellRenderer   *focus_cell,
12653                                   gboolean           start_editing)
12654 {
12655   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12656   g_return_if_fail (path != NULL);
12657   if (focus_column)
12658     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (focus_column));
12659   if (focus_cell)
12660     {
12661       g_return_if_fail (focus_column);
12662       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12663     }
12664
12665   /* cancel the current editing, if it exists */
12666   if (tree_view->priv->edited_column &&
12667       tree_view->priv->edited_column->editable_widget)
12668     gtk_tree_view_stop_editing (tree_view, TRUE);
12669
12670   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12671
12672   if (focus_column && focus_column->visible)
12673     {
12674       GList *list;
12675       gboolean column_in_tree = FALSE;
12676
12677       for (list = tree_view->priv->columns; list; list = list->next)
12678         if (list->data == focus_column)
12679           {
12680             column_in_tree = TRUE;
12681             break;
12682           }
12683       g_return_if_fail (column_in_tree);
12684       tree_view->priv->focus_column = focus_column;
12685       if (focus_cell)
12686         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12687       if (start_editing)
12688         gtk_tree_view_start_editing (tree_view, path);
12689     }
12690 }
12691
12692 /**
12693  * gtk_tree_view_get_bin_window:
12694  * @tree_view: A #GtkTreeView
12695  *
12696  * Returns the window that @tree_view renders to.  This is used primarily to
12697  * compare to <literal>event->window</literal> to confirm that the event on
12698  * @tree_view is on the right window.
12699  *
12700  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12701  **/
12702 GdkWindow *
12703 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12704 {
12705   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12706
12707   return tree_view->priv->bin_window;
12708 }
12709
12710 /**
12711  * gtk_tree_view_get_path_at_pos:
12712  * @tree_view: A #GtkTreeView.
12713  * @x: The x position to be identified (relative to bin_window).
12714  * @y: The y position to be identified (relative to bin_window).
12715  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12716  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12717  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12718  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12719  *
12720  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12721  * (please see gtk_tree_view_get_bin_window()).
12722  * That is, @x and @y are relative to an events coordinates. @x and @y must
12723  * come from an event on the @tree_view only where <literal>event->window ==
12724  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12725  * things like popup menus. If @path is non-%NULL, then it will be filled
12726  * with the #GtkTreePath at that point.  This path should be freed with
12727  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12728  * with the column at that point.  @cell_x and @cell_y return the coordinates
12729  * relative to the cell background (i.e. the @background_area passed to
12730  * gtk_cell_renderer_render()).  This function is only meaningful if
12731  * @tree_view is realized.
12732  *
12733  * For converting widget coordinates (eg. the ones you get from
12734  * GtkWidget::query-tooltip), please see
12735  * gtk_tree_view_convert_widget_to_bin_window_coords().
12736  *
12737  * Return value: %TRUE if a row exists at that coordinate.
12738  **/
12739 gboolean
12740 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12741                                gint                x,
12742                                gint                y,
12743                                GtkTreePath       **path,
12744                                GtkTreeViewColumn **column,
12745                                gint               *cell_x,
12746                                gint               *cell_y)
12747 {
12748   GtkRBTree *tree;
12749   GtkRBNode *node;
12750   gint y_offset;
12751
12752   g_return_val_if_fail (tree_view != NULL, FALSE);
12753   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
12754
12755   if (path)
12756     *path = NULL;
12757   if (column)
12758     *column = NULL;
12759
12760   if (tree_view->priv->tree == NULL)
12761     return FALSE;
12762
12763   if (x > tree_view->priv->hadjustment->upper)
12764     return FALSE;
12765
12766   if (x < 0 || y < 0)
12767     return FALSE;
12768
12769   if (column || cell_x)
12770     {
12771       GtkTreeViewColumn *tmp_column;
12772       GtkTreeViewColumn *last_column = NULL;
12773       GList *list;
12774       gint remaining_x = x;
12775       gboolean found = FALSE;
12776       gboolean rtl;
12777
12778       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12779       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12780            list;
12781            list = (rtl ? list->prev : list->next))
12782         {
12783           tmp_column = list->data;
12784
12785           if (tmp_column->visible == FALSE)
12786             continue;
12787
12788           last_column = tmp_column;
12789           if (remaining_x <= tmp_column->width)
12790             {
12791               found = TRUE;
12792
12793               if (column)
12794                 *column = tmp_column;
12795
12796               if (cell_x)
12797                 *cell_x = remaining_x;
12798
12799               break;
12800             }
12801           remaining_x -= tmp_column->width;
12802         }
12803
12804       /* If found is FALSE and there is a last_column, then it the remainder
12805        * space is in that area
12806        */
12807       if (!found)
12808         {
12809           if (last_column)
12810             {
12811               if (column)
12812                 *column = last_column;
12813
12814               if (cell_x)
12815                 *cell_x = last_column->width + remaining_x;
12816             }
12817           else
12818             {
12819               return FALSE;
12820             }
12821         }
12822     }
12823
12824   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12825                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12826                                       &tree, &node);
12827
12828   if (tree == NULL)
12829     return FALSE;
12830
12831   if (cell_y)
12832     *cell_y = y_offset;
12833
12834   if (path)
12835     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12836
12837   return TRUE;
12838 }
12839
12840
12841 /**
12842  * gtk_tree_view_get_cell_area:
12843  * @tree_view: a #GtkTreeView
12844  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12845  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12846  * @rect: rectangle to fill with cell rect
12847  *
12848  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12849  * row specified by @path and the column specified by @column.  If @path is
12850  * %NULL, or points to a path not currently displayed, the @y and @height fields
12851  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12852  * fields will be filled with 0.  The sum of all cell rects does not cover the
12853  * entire tree; there are extra pixels in between rows, for example. The
12854  * returned rectangle is equivalent to the @cell_area passed to
12855  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12856  * realized.
12857  **/
12858 void
12859 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12860                              GtkTreePath        *path,
12861                              GtkTreeViewColumn  *column,
12862                              GdkRectangle       *rect)
12863 {
12864   GtkRBTree *tree = NULL;
12865   GtkRBNode *node = NULL;
12866   gint vertical_separator;
12867   gint horizontal_separator;
12868
12869   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12870   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12871   g_return_if_fail (rect != NULL);
12872   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12873   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12874
12875   gtk_widget_style_get (GTK_WIDGET (tree_view),
12876                         "vertical-separator", &vertical_separator,
12877                         "horizontal-separator", &horizontal_separator,
12878                         NULL);
12879
12880   rect->x = 0;
12881   rect->y = 0;
12882   rect->width = 0;
12883   rect->height = 0;
12884
12885   if (column)
12886     {
12887       rect->x = column->button->allocation.x + horizontal_separator/2;
12888       rect->width = column->button->allocation.width - horizontal_separator;
12889     }
12890
12891   if (path)
12892     {
12893       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12894
12895       /* Get vertical coords */
12896       if ((!ret && tree == NULL) || ret)
12897         return;
12898
12899       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12900       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12901
12902       if (column &&
12903           gtk_tree_view_is_expander_column (tree_view, column))
12904         {
12905           gint depth = gtk_tree_path_get_depth (path);
12906           gboolean rtl;
12907
12908           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12909
12910           if (!rtl)
12911             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12912           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12913
12914           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12915             {
12916               if (!rtl)
12917                 rect->x += depth * tree_view->priv->expander_size;
12918               rect->width -= depth * tree_view->priv->expander_size;
12919             }
12920
12921           rect->width = MAX (rect->width, 0);
12922         }
12923     }
12924 }
12925
12926 /**
12927  * gtk_tree_view_get_background_area:
12928  * @tree_view: a #GtkTreeView
12929  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12930  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12931  * @rect: rectangle to fill with cell background rect
12932  *
12933  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12934  * row specified by @path and the column specified by @column.  If @path is
12935  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12936  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12937  * fields will be filled with 0.  The returned rectangle is equivalent to the
12938  * @background_area passed to gtk_cell_renderer_render().  These background
12939  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12940  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12941  * itself, excluding surrounding borders and the tree expander area.
12942  *
12943  **/
12944 void
12945 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12946                                    GtkTreePath        *path,
12947                                    GtkTreeViewColumn  *column,
12948                                    GdkRectangle       *rect)
12949 {
12950   GtkRBTree *tree = NULL;
12951   GtkRBNode *node = NULL;
12952
12953   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12954   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12955   g_return_if_fail (rect != NULL);
12956
12957   rect->x = 0;
12958   rect->y = 0;
12959   rect->width = 0;
12960   rect->height = 0;
12961
12962   if (path)
12963     {
12964       /* Get vertical coords */
12965
12966       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12967           tree == NULL)
12968         return;
12969
12970       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12971
12972       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12973     }
12974
12975   if (column)
12976     {
12977       gint x2 = 0;
12978
12979       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12980       rect->width = x2 - rect->x;
12981     }
12982 }
12983
12984 /**
12985  * gtk_tree_view_get_visible_rect:
12986  * @tree_view: a #GtkTreeView
12987  * @visible_rect: rectangle to fill
12988  *
12989  * Fills @visible_rect with the currently-visible region of the
12990  * buffer, in tree coordinates. Convert to bin_window coordinates with
12991  * gtk_tree_view_convert_tree_to_bin_window_coords().
12992  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12993  * scrollable area of the tree.
12994  **/
12995 void
12996 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12997                                 GdkRectangle *visible_rect)
12998 {
12999   GtkWidget *widget;
13000
13001   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13002
13003   widget = GTK_WIDGET (tree_view);
13004
13005   if (visible_rect)
13006     {
13007       visible_rect->x = tree_view->priv->hadjustment->value;
13008       visible_rect->y = tree_view->priv->vadjustment->value;
13009       visible_rect->width = widget->allocation.width;
13010       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13011     }
13012 }
13013
13014 /**
13015  * gtk_tree_view_widget_to_tree_coords:
13016  * @tree_view: a #GtkTreeView
13017  * @wx: X coordinate relative to bin_window
13018  * @wy: Y coordinate relative to bin_window
13019  * @tx: return location for tree X coordinate
13020  * @ty: return location for tree Y coordinate
13021  *
13022  * Converts bin_window coordinates to coordinates for the
13023  * tree (the full scrollable area of the tree).
13024  *
13025  * Deprecated: 2.12: Due to historial reasons the name of this function is
13026  * incorrect.  For converting coordinates relative to the widget to
13027  * bin_window coordinates, please see
13028  * gtk_tree_view_convert_widget_to_bin_window_coords().
13029  *
13030  **/
13031 void
13032 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
13033                                       gint         wx,
13034                                       gint         wy,
13035                                       gint        *tx,
13036                                       gint        *ty)
13037 {
13038   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13039
13040   if (tx)
13041     *tx = wx + tree_view->priv->hadjustment->value;
13042   if (ty)
13043     *ty = wy + tree_view->priv->dy;
13044 }
13045
13046 /**
13047  * gtk_tree_view_tree_to_widget_coords:
13048  * @tree_view: a #GtkTreeView
13049  * @tx: tree X coordinate
13050  * @ty: tree Y coordinate
13051  * @wx: return location for X coordinate relative to bin_window
13052  * @wy: return location for Y coordinate relative to bin_window
13053  *
13054  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13055  * to bin_window coordinates.
13056  *
13057  * Deprecated: 2.12: Due to historial reasons the name of this function is
13058  * incorrect.  For converting bin_window coordinates to coordinates relative
13059  * to bin_window, please see
13060  * gtk_tree_view_convert_bin_window_to_widget_coords().
13061  *
13062  **/
13063 void
13064 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13065                                      gint         tx,
13066                                      gint         ty,
13067                                      gint        *wx,
13068                                      gint        *wy)
13069 {
13070   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13071
13072   if (wx)
13073     *wx = tx - tree_view->priv->hadjustment->value;
13074   if (wy)
13075     *wy = ty - tree_view->priv->dy;
13076 }
13077
13078
13079 /**
13080  * gtk_tree_view_convert_widget_to_tree_coords:
13081  * @tree_view: a #GtkTreeView
13082  * @wx: X coordinate relative to the widget
13083  * @wy: Y coordinate relative to the widget
13084  * @tx: return location for tree X coordinate
13085  * @ty: return location for tree Y coordinate
13086  *
13087  * Converts widget coordinates to coordinates for the
13088  * tree (the full scrollable area of the tree).
13089  *
13090  * Since: 2.12
13091  **/
13092 void
13093 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13094                                              gint         wx,
13095                                              gint         wy,
13096                                              gint        *tx,
13097                                              gint        *ty)
13098 {
13099   gint x, y;
13100
13101   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13102
13103   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13104                                                      wx, wy,
13105                                                      &x, &y);
13106   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13107                                                    x, y,
13108                                                    tx, ty);
13109 }
13110
13111 /**
13112  * gtk_tree_view_convert_tree_to_widget_coords:
13113  * @tree_view: a #GtkTreeView
13114  * @tx: X coordinate relative to the tree
13115  * @ty: Y coordinate relative to the tree
13116  * @wx: return location for widget X coordinate
13117  * @wy: return location for widget Y coordinate
13118  *
13119  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13120  * to widget coordinates.
13121  *
13122  * Since: 2.12
13123  **/
13124 void
13125 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13126                                              gint         tx,
13127                                              gint         ty,
13128                                              gint        *wx,
13129                                              gint        *wy)
13130 {
13131   gint x, y;
13132
13133   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13134
13135   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13136                                                    tx, ty,
13137                                                    &x, &y);
13138   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13139                                                      x, y,
13140                                                      wx, wy);
13141 }
13142
13143 /**
13144  * gtk_tree_view_convert_widget_to_bin_window_coords:
13145  * @tree_view: a #GtkTreeView
13146  * @wx: X coordinate relative to the widget
13147  * @wy: Y coordinate relative to the widget
13148  * @bx: return location for bin_window X coordinate
13149  * @by: return location for bin_window Y coordinate
13150  *
13151  * Converts widget coordinates to coordinates for the bin_window
13152  * (see gtk_tree_view_get_bin_window()).
13153  *
13154  * Since: 2.12
13155  **/
13156 void
13157 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13158                                                    gint         wx,
13159                                                    gint         wy,
13160                                                    gint        *bx,
13161                                                    gint        *by)
13162 {
13163   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13164
13165   if (bx)
13166     *bx = wx + tree_view->priv->hadjustment->value;
13167   if (by)
13168     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13169 }
13170
13171 /**
13172  * gtk_tree_view_convert_bin_window_to_widget_coords:
13173  * @tree_view: a #GtkTreeView
13174  * @bx: bin_window X coordinate
13175  * @by: bin_window Y coordinate
13176  * @wx: return location for widget X coordinate
13177  * @wy: return location for widget Y coordinate
13178  *
13179  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13180  * to widget relative coordinates.
13181  *
13182  * Since: 2.12
13183  **/
13184 void
13185 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13186                                                    gint         bx,
13187                                                    gint         by,
13188                                                    gint        *wx,
13189                                                    gint        *wy)
13190 {
13191   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13192
13193   if (wx)
13194     *wx = bx - tree_view->priv->hadjustment->value;
13195   if (wy)
13196     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13197 }
13198
13199 /**
13200  * gtk_tree_view_convert_tree_to_bin_window_coords:
13201  * @tree_view: a #GtkTreeView
13202  * @tx: tree X coordinate
13203  * @ty: tree Y coordinate
13204  * @bx: return location for X coordinate relative to bin_window
13205  * @by: return location for Y coordinate relative to bin_window
13206  *
13207  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13208  * to bin_window coordinates.
13209  *
13210  * Since: 2.12
13211  **/
13212 void
13213 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13214                                                  gint         tx,
13215                                                  gint         ty,
13216                                                  gint        *bx,
13217                                                  gint        *by)
13218 {
13219   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13220
13221   if (bx)
13222     *bx = tx;
13223   if (by)
13224     *by = ty - tree_view->priv->dy;
13225 }
13226
13227 /**
13228  * gtk_tree_view_convert_bin_window_to_tree_coords:
13229  * @tree_view: a #GtkTreeView
13230  * @bx: X coordinate relative to bin_window
13231  * @by: Y coordinate relative to bin_window
13232  * @tx: return location for tree X coordinate
13233  * @ty: return location for tree Y coordinate
13234  *
13235  * Converts bin_window coordinates to coordinates for the
13236  * tree (the full scrollable area of the tree).
13237  *
13238  * Since: 2.12
13239  **/
13240 void
13241 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13242                                                  gint         bx,
13243                                                  gint         by,
13244                                                  gint        *tx,
13245                                                  gint        *ty)
13246 {
13247   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13248
13249   if (tx)
13250     *tx = bx;
13251   if (ty)
13252     *ty = by + tree_view->priv->dy;
13253 }
13254
13255
13256
13257 /**
13258  * gtk_tree_view_get_visible_range:
13259  * @tree_view: A #GtkTreeView
13260  * @start_path: Return location for start of region, or %NULL.
13261  * @end_path: Return location for end of region, or %NULL.
13262  *
13263  * Sets @start_path and @end_path to be the first and last visible path.
13264  * Note that there may be invisible paths in between.
13265  *
13266  * The paths should be freed with gtk_tree_path_free() after use.
13267  *
13268  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13269  *
13270  * Since: 2.8
13271  **/
13272 gboolean
13273 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13274                                  GtkTreePath **start_path,
13275                                  GtkTreePath **end_path)
13276 {
13277   GtkRBTree *tree;
13278   GtkRBNode *node;
13279
13280   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13281
13282   if (!tree_view->priv->tree)
13283     return FALSE;
13284
13285   if (start_path)
13286     {
13287       _gtk_rbtree_find_offset (tree_view->priv->tree,
13288                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13289                                &tree, &node);
13290       *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13291     }
13292
13293   if (end_path)
13294     {
13295       gint y;
13296
13297       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13298         y = tree_view->priv->height - 1;
13299       else
13300         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13301
13302       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13303       *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13304     }
13305
13306   return TRUE;
13307 }
13308
13309 static void
13310 unset_reorderable (GtkTreeView *tree_view)
13311 {
13312   if (tree_view->priv->reorderable)
13313     {
13314       tree_view->priv->reorderable = FALSE;
13315       g_object_notify (G_OBJECT (tree_view), "reorderable");
13316     }
13317 }
13318
13319 /**
13320  * gtk_tree_view_enable_model_drag_source:
13321  * @tree_view: a #GtkTreeView
13322  * @start_button_mask: Mask of allowed buttons to start drag
13323  * @targets: the table of targets that the drag will support
13324  * @n_targets: the number of items in @targets
13325  * @actions: the bitmask of possible actions for a drag from this
13326  *    widget
13327  *
13328  * Turns @tree_view into a drag source for automatic DND.
13329  **/
13330 void
13331 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13332                                         GdkModifierType           start_button_mask,
13333                                         const GtkTargetEntry     *targets,
13334                                         gint                      n_targets,
13335                                         GdkDragAction             actions)
13336 {
13337   TreeViewDragInfo *di;
13338
13339   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13340
13341   gtk_drag_source_set (GTK_WIDGET (tree_view),
13342                        0,
13343                        targets,
13344                        n_targets,
13345                        actions);
13346
13347   di = ensure_info (tree_view);
13348   clear_source_info (di);
13349
13350   di->start_button_mask = start_button_mask;
13351   di->source_target_list = gtk_target_list_new (targets, n_targets);
13352   di->source_actions = actions;
13353
13354   di->source_set = TRUE;
13355
13356   unset_reorderable (tree_view);
13357 }
13358
13359 /**
13360  * gtk_tree_view_enable_model_drag_dest:
13361  * @tree_view: a #GtkTreeView
13362  * @targets: the table of targets that the drag will support
13363  * @n_targets: the number of items in @targets
13364  * @actions: the bitmask of possible actions for a drag from this
13365  *    widget
13366  *
13367  * Turns @tree_view into a drop destination for automatic DND.
13368  **/
13369 void
13370 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13371                                       const GtkTargetEntry     *targets,
13372                                       gint                      n_targets,
13373                                       GdkDragAction             actions)
13374 {
13375   TreeViewDragInfo *di;
13376
13377   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13378
13379   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13380                      0,
13381                      targets,
13382                      n_targets,
13383                      actions);
13384
13385   di = ensure_info (tree_view);
13386   clear_dest_info (di);
13387
13388   if (targets)
13389     di->dest_target_list = gtk_target_list_new (targets, n_targets);
13390
13391   di->dest_set = TRUE;
13392
13393   unset_reorderable (tree_view);
13394 }
13395
13396 /**
13397  * gtk_tree_view_unset_rows_drag_source:
13398  * @tree_view: a #GtkTreeView
13399  *
13400  * Undoes the effect of gtk_tree_view_enable_model_drag_source().
13401  **/
13402 void
13403 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13404 {
13405   TreeViewDragInfo *di;
13406
13407   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13408
13409   di = get_info (tree_view);
13410
13411   if (di)
13412     {
13413       if (di->source_set)
13414         {
13415           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13416           clear_source_info (di);
13417           di->source_set = FALSE;
13418         }
13419
13420       if (!di->dest_set && !di->source_set)
13421         remove_info (tree_view);
13422     }
13423
13424   unset_reorderable (tree_view);
13425 }
13426
13427 /**
13428  * gtk_tree_view_unset_rows_drag_dest:
13429  * @tree_view: a #GtkTreeView
13430  *
13431  * Undoes the effect of gtk_tree_view_enable_model_drag_dest().
13432  **/
13433 void
13434 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13435 {
13436   TreeViewDragInfo *di;
13437
13438   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13439
13440   di = get_info (tree_view);
13441
13442   if (di)
13443     {
13444       if (di->dest_set)
13445         {
13446           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13447           clear_dest_info (di);
13448           di->dest_set = FALSE;
13449         }
13450
13451       if (!di->dest_set && !di->source_set)
13452         remove_info (tree_view);
13453     }
13454
13455   unset_reorderable (tree_view);
13456 }
13457
13458 /**
13459  * gtk_tree_view_set_drag_dest_row:
13460  * @tree_view: a #GtkTreeView
13461  * @path: The path of the row to highlight, or %NULL.
13462  * @pos: Specifies whether to drop before, after or into the row
13463  *
13464  * Sets the row that is highlighted for feedback.
13465  **/
13466 void
13467 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13468                                  GtkTreePath            *path,
13469                                  GtkTreeViewDropPosition pos)
13470 {
13471   GtkTreePath *current_dest;
13472
13473   /* Note; this function is exported to allow a custom DND
13474    * implementation, so it can't touch TreeViewDragInfo
13475    */
13476
13477   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13478
13479   current_dest = NULL;
13480
13481   if (tree_view->priv->drag_dest_row)
13482     {
13483       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13484       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13485     }
13486
13487   /* special case a drop on an empty model */
13488   tree_view->priv->empty_view_drop = 0;
13489
13490   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13491       && gtk_tree_path_get_depth (path) == 1
13492       && gtk_tree_path_get_indices (path)[0] == 0)
13493     {
13494       gint n_children;
13495
13496       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13497                                                    NULL);
13498
13499       if (!n_children)
13500         tree_view->priv->empty_view_drop = 1;
13501     }
13502
13503   tree_view->priv->drag_dest_pos = pos;
13504
13505   if (path)
13506     {
13507       tree_view->priv->drag_dest_row =
13508         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13509       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13510     }
13511   else
13512     tree_view->priv->drag_dest_row = NULL;
13513
13514   if (current_dest)
13515     {
13516       GtkRBTree *tree, *new_tree;
13517       GtkRBNode *node, *new_node;
13518
13519       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13520       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13521
13522       if (tree && node)
13523         {
13524           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13525           if (new_tree && new_node)
13526             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13527
13528           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13529           if (new_tree && new_node)
13530             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13531         }
13532       gtk_tree_path_free (current_dest);
13533     }
13534 }
13535
13536 /**
13537  * gtk_tree_view_get_drag_dest_row:
13538  * @tree_view: a #GtkTreeView
13539  * @path: Return location for the path of the highlighted row, or %NULL.
13540  * @pos: Return location for the drop position, or %NULL
13541  *
13542  * Gets information about the row that is highlighted for feedback.
13543  **/
13544 void
13545 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13546                                  GtkTreePath             **path,
13547                                  GtkTreeViewDropPosition  *pos)
13548 {
13549   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13550
13551   if (path)
13552     {
13553       if (tree_view->priv->drag_dest_row)
13554         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13555       else
13556         {
13557           if (tree_view->priv->empty_view_drop)
13558             *path = gtk_tree_path_new_from_indices (0, -1);
13559           else
13560             *path = NULL;
13561         }
13562     }
13563
13564   if (pos)
13565     *pos = tree_view->priv->drag_dest_pos;
13566 }
13567
13568 /**
13569  * gtk_tree_view_get_dest_row_at_pos:
13570  * @tree_view: a #GtkTreeView
13571  * @drag_x: the position to determine the destination row for
13572  * @drag_y: the position to determine the destination row for
13573  * @path: Return location for the path of the highlighted row, or %NULL.
13574  * @pos: Return location for the drop position, or %NULL
13575  *
13576  * Determines the destination row for a given position.  @drag_x and
13577  * @drag_y are expected to be in widget coordinates.
13578  *
13579  * Return value: whether there is a row at the given position.
13580  **/
13581 gboolean
13582 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13583                                    gint                     drag_x,
13584                                    gint                     drag_y,
13585                                    GtkTreePath            **path,
13586                                    GtkTreeViewDropPosition *pos)
13587 {
13588   gint cell_y;
13589   gint bin_x, bin_y;
13590   gdouble offset_into_row;
13591   gdouble third;
13592   GdkRectangle cell;
13593   GtkTreeViewColumn *column = NULL;
13594   GtkTreePath *tmp_path = NULL;
13595
13596   /* Note; this function is exported to allow a custom DND
13597    * implementation, so it can't touch TreeViewDragInfo
13598    */
13599
13600   g_return_val_if_fail (tree_view != NULL, FALSE);
13601   g_return_val_if_fail (drag_x >= 0, FALSE);
13602   g_return_val_if_fail (drag_y >= 0, FALSE);
13603   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
13604
13605
13606   if (path)
13607     *path = NULL;
13608
13609   if (tree_view->priv->tree == NULL)
13610     return FALSE;
13611
13612   /* If in the top third of a row, we drop before that row; if
13613    * in the bottom third, drop after that row; if in the middle,
13614    * and the row has children, drop into the row.
13615    */
13616   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13617                                                      &bin_x, &bin_y);
13618
13619   if (!gtk_tree_view_get_path_at_pos (tree_view,
13620                                       bin_x,
13621                                       bin_y,
13622                                       &tmp_path,
13623                                       &column,
13624                                       NULL,
13625                                       &cell_y))
13626     return FALSE;
13627
13628   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13629                                      &cell);
13630
13631   offset_into_row = cell_y;
13632
13633   if (path)
13634     *path = tmp_path;
13635   else
13636     gtk_tree_path_free (tmp_path);
13637
13638   tmp_path = NULL;
13639
13640   third = cell.height / 3.0;
13641
13642   if (pos)
13643     {
13644       if (offset_into_row < third)
13645         {
13646           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13647         }
13648       else if (offset_into_row < (cell.height / 2.0))
13649         {
13650           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13651         }
13652       else if (offset_into_row < third * 2.0)
13653         {
13654           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13655         }
13656       else
13657         {
13658           *pos = GTK_TREE_VIEW_DROP_AFTER;
13659         }
13660     }
13661
13662   return TRUE;
13663 }
13664
13665
13666
13667 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13668 /**
13669  * gtk_tree_view_create_row_drag_icon:
13670  * @tree_view: a #GtkTreeView
13671  * @path: a #GtkTreePath in @tree_view
13672  *
13673  * Creates a #GdkPixmap representation of the row at @path.
13674  * This image is used for a drag icon.
13675  *
13676  * Return value: a newly-allocated pixmap of the drag icon.
13677  **/
13678 GdkPixmap *
13679 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13680                                     GtkTreePath  *path)
13681 {
13682   GtkTreeIter   iter;
13683   GtkRBTree    *tree;
13684   GtkRBNode    *node;
13685   gint cell_offset;
13686   GList *list;
13687   GdkRectangle background_area;
13688   GdkRectangle expose_area;
13689   GtkWidget *widget;
13690   gint depth;
13691   /* start drawing inside the black outline */
13692   gint x = 1, y = 1;
13693   GdkDrawable *drawable;
13694   gint bin_window_width;
13695   gboolean is_separator = FALSE;
13696   gboolean rtl;
13697
13698   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13699   g_return_val_if_fail (path != NULL, NULL);
13700
13701   widget = GTK_WIDGET (tree_view);
13702
13703   if (!GTK_WIDGET_REALIZED (tree_view))
13704     return NULL;
13705
13706   depth = gtk_tree_path_get_depth (path);
13707
13708   _gtk_tree_view_find_node (tree_view,
13709                             path,
13710                             &tree,
13711                             &node);
13712
13713   if (tree == NULL)
13714     return NULL;
13715
13716   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13717                                 &iter,
13718                                 path))
13719     return NULL;
13720
13721   is_separator = row_is_separator (tree_view, &iter, NULL);
13722
13723   cell_offset = x;
13724
13725   background_area.y = y;
13726   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13727
13728   gdk_drawable_get_size (tree_view->priv->bin_window,
13729                          &bin_window_width, NULL);
13730
13731   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13732                              bin_window_width + 2,
13733                              background_area.height + 2,
13734                              -1);
13735
13736   expose_area.x = 0;
13737   expose_area.y = 0;
13738   expose_area.width = bin_window_width + 2;
13739   expose_area.height = background_area.height + 2;
13740
13741   gdk_draw_rectangle (drawable,
13742                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13743                       TRUE,
13744                       0, 0,
13745                       bin_window_width + 2,
13746                       background_area.height + 2);
13747
13748   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13749
13750   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13751       list;
13752       list = (rtl ? list->prev : list->next))
13753     {
13754       GtkTreeViewColumn *column = list->data;
13755       GdkRectangle cell_area;
13756       gint vertical_separator;
13757
13758       if (!column->visible)
13759         continue;
13760
13761       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13762                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13763                                                node->children?TRUE:FALSE);
13764
13765       background_area.x = cell_offset;
13766       background_area.width = column->width;
13767
13768       gtk_widget_style_get (widget,
13769                             "vertical-separator", &vertical_separator,
13770                             NULL);
13771
13772       cell_area = background_area;
13773
13774       cell_area.y += vertical_separator / 2;
13775       cell_area.height -= vertical_separator;
13776
13777       if (gtk_tree_view_is_expander_column (tree_view, column))
13778         {
13779           if (!rtl)
13780             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13781           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13782
13783           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13784             {
13785               if (!rtl)
13786                 cell_area.x += depth * tree_view->priv->expander_size;
13787               cell_area.width -= depth * tree_view->priv->expander_size;
13788             }
13789         }
13790
13791       if (gtk_tree_view_column_cell_is_visible (column))
13792         {
13793           if (is_separator)
13794             gtk_paint_hline (widget->style,
13795                              drawable,
13796                              GTK_STATE_NORMAL,
13797                              &cell_area,
13798                              widget,
13799                              NULL,
13800                              cell_area.x,
13801                              cell_area.x + cell_area.width,
13802                              cell_area.y + cell_area.height / 2);
13803           else
13804             _gtk_tree_view_column_cell_render (column,
13805                                                drawable,
13806                                                &background_area,
13807                                                &cell_area,
13808                                                &expose_area,
13809                                                0);
13810         }
13811       cell_offset += column->width;
13812     }
13813
13814   gdk_draw_rectangle (drawable,
13815                       widget->style->black_gc,
13816                       FALSE,
13817                       0, 0,
13818                       bin_window_width + 1,
13819                       background_area.height + 1);
13820
13821   return drawable;
13822 }
13823
13824
13825 /**
13826  * gtk_tree_view_set_destroy_count_func:
13827  * @tree_view: A #GtkTreeView
13828  * @func: Function to be called when a view row is destroyed, or %NULL
13829  * @data: User data to be passed to @func, or %NULL
13830  * @destroy: Destroy notifier for @data, or %NULL
13831  *
13832  * This function should almost never be used.  It is meant for private use by
13833  * ATK for determining the number of visible children that are removed when the
13834  * user collapses a row, or a row is deleted.
13835  **/
13836 void
13837 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13838                                       GtkTreeDestroyCountFunc  func,
13839                                       gpointer                 data,
13840                                       GtkDestroyNotify         destroy)
13841 {
13842   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13843
13844   if (tree_view->priv->destroy_count_destroy)
13845     (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
13846
13847   tree_view->priv->destroy_count_func = func;
13848   tree_view->priv->destroy_count_data = data;
13849   tree_view->priv->destroy_count_destroy = destroy;
13850 }
13851
13852
13853 /*
13854  * Interactive search
13855  */
13856
13857 /**
13858  * gtk_tree_view_set_enable_search:
13859  * @tree_view: A #GtkTreeView
13860  * @enable_search: %TRUE, if the user can search interactively
13861  *
13862  * If @enable_search is set, then the user can type in text to search through
13863  * the tree interactively (this is sometimes called "typeahead find").
13864  *
13865  * Note that even if this is %FALSE, the user can still initiate a search
13866  * using the "start-interactive-search" key binding.
13867  */
13868 void
13869 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13870                                  gboolean     enable_search)
13871 {
13872   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13873
13874   enable_search = !!enable_search;
13875
13876   if (tree_view->priv->enable_search != enable_search)
13877     {
13878        tree_view->priv->enable_search = enable_search;
13879        g_object_notify (G_OBJECT (tree_view), "enable-search");
13880     }
13881 }
13882
13883 /**
13884  * gtk_tree_view_get_enable_search:
13885  * @tree_view: A #GtkTreeView
13886  *
13887  * Returns whether or not the tree allows to start interactive searching
13888  * by typing in text.
13889  *
13890  * Return value: whether or not to let the user search interactively
13891  */
13892 gboolean
13893 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13894 {
13895   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13896
13897   return tree_view->priv->enable_search;
13898 }
13899
13900
13901 /**
13902  * gtk_tree_view_get_search_column:
13903  * @tree_view: A #GtkTreeView
13904  *
13905  * Gets the column searched on by the interactive search code.
13906  *
13907  * Return value: the column the interactive search code searches in.
13908  */
13909 gint
13910 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13911 {
13912   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13913
13914   return (tree_view->priv->search_column);
13915 }
13916
13917 /**
13918  * gtk_tree_view_set_search_column:
13919  * @tree_view: A #GtkTreeView
13920  * @column: the column of the model to search in, or -1 to disable searching
13921  *
13922  * Sets @column as the column where the interactive search code should
13923  * search in.
13924  *
13925  * If the sort column is set, users can use the "start-interactive-search"
13926  * key binding to bring up search popup. The enable-search property controls
13927  * whether simply typing text will also start an interactive search.
13928  *
13929  * Note that @column refers to a column of the model.
13930  */
13931 void
13932 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13933                                  gint         column)
13934 {
13935   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13936   g_return_if_fail (column >= -1);
13937
13938   if (tree_view->priv->search_column == column)
13939     return;
13940
13941   tree_view->priv->search_column = column;
13942   g_object_notify (G_OBJECT (tree_view), "search-column");
13943 }
13944
13945 /**
13946  * gtk_tree_view_get_search_equal_func:
13947  * @tree_view: A #GtkTreeView
13948  *
13949  * Returns the compare function currently in use.
13950  *
13951  * Return value: the currently used compare function for the search code.
13952  */
13953
13954 GtkTreeViewSearchEqualFunc
13955 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13956 {
13957   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13958
13959   return tree_view->priv->search_equal_func;
13960 }
13961
13962 /**
13963  * gtk_tree_view_set_search_equal_func:
13964  * @tree_view: A #GtkTreeView
13965  * @search_equal_func: the compare function to use during the search
13966  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13967  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13968  *
13969  * Sets the compare function for the interactive search capabilities; note
13970  * that somewhat like strcmp() returning 0 for equality
13971  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13972  **/
13973 void
13974 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13975                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13976                                      gpointer                    search_user_data,
13977                                      GtkDestroyNotify            search_destroy)
13978 {
13979   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13980   g_return_if_fail (search_equal_func != NULL);
13981
13982   if (tree_view->priv->search_destroy)
13983     (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
13984
13985   tree_view->priv->search_equal_func = search_equal_func;
13986   tree_view->priv->search_user_data = search_user_data;
13987   tree_view->priv->search_destroy = search_destroy;
13988   if (tree_view->priv->search_equal_func == NULL)
13989     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13990 }
13991
13992 /**
13993  * gtk_tree_view_get_search_entry:
13994  * @tree_view: A #GtkTreeView
13995  *
13996  * Returns the GtkEntry which is currently in use as interactive search
13997  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13998  * will be returned.
13999  *
14000  * Return value: the entry currently in use as search entry.
14001  *
14002  * Since: 2.10
14003  */
14004 GtkEntry *
14005 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14006 {
14007   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14008
14009   if (tree_view->priv->search_custom_entry_set)
14010     return GTK_ENTRY (tree_view->priv->search_entry);
14011
14012   return NULL;
14013 }
14014
14015 /**
14016  * gtk_tree_view_set_search_entry:
14017  * @tree_view: A #GtkTreeView
14018  * @entry: the entry the interactive search code of @tree_view should use or %NULL
14019  *
14020  * Sets the entry which the interactive search code will use for this
14021  * @tree_view.  This is useful when you want to provide a search entry
14022  * in our interface at all time at a fixed position.  Passing %NULL for
14023  * @entry will make the interactive search code use the built-in popup
14024  * entry again.
14025  *
14026  * Since: 2.10
14027  */
14028 void
14029 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14030                                 GtkEntry    *entry)
14031 {
14032   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14033   if (entry != NULL)
14034     g_return_if_fail (GTK_IS_ENTRY (entry));
14035
14036   if (tree_view->priv->search_custom_entry_set)
14037     {
14038       if (tree_view->priv->search_entry_changed_id)
14039         {
14040           g_signal_handler_disconnect (tree_view->priv->search_entry,
14041                                        tree_view->priv->search_entry_changed_id);
14042           tree_view->priv->search_entry_changed_id = 0;
14043         }
14044       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14045                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14046                                             tree_view);
14047
14048       g_object_unref (tree_view->priv->search_entry);
14049     }
14050   else if (tree_view->priv->search_window)
14051     {
14052       gtk_widget_destroy (tree_view->priv->search_window);
14053
14054       tree_view->priv->search_window = NULL;
14055     }
14056
14057   if (entry)
14058     {
14059       tree_view->priv->search_entry = g_object_ref (entry);
14060       tree_view->priv->search_custom_entry_set = TRUE;
14061
14062       if (tree_view->priv->search_entry_changed_id == 0)
14063         {
14064           tree_view->priv->search_entry_changed_id =
14065             g_signal_connect (tree_view->priv->search_entry, "changed",
14066                               G_CALLBACK (gtk_tree_view_search_init),
14067                               tree_view);
14068         }
14069
14070         g_signal_connect (tree_view->priv->search_entry, "key_press_event",
14071                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14072                           tree_view);
14073
14074         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14075     }
14076   else
14077     {
14078       tree_view->priv->search_entry = NULL;
14079       tree_view->priv->search_custom_entry_set = FALSE;
14080     }
14081 }
14082
14083 /**
14084  * gtk_tree_view_set_search_position_func:
14085  * @tree_view: A #GtkTreeView
14086  * @func: the function to use to position the search dialog, or %NULL
14087  *    to use the default search position function
14088  * @data: user data to pass to @func, or %NULL
14089  * @destroy: Destroy notifier for @data, or %NULL
14090  *
14091  * Sets the function to use when positioning the seach dialog.
14092  *
14093  * Since: 2.10
14094  **/
14095 void
14096 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14097                                         GtkTreeViewSearchPositionFunc  func,
14098                                         gpointer                       user_data,
14099                                         GDestroyNotify                 destroy)
14100 {
14101   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14102
14103   if (tree_view->priv->search_position_destroy)
14104     (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
14105
14106   tree_view->priv->search_position_func = func;
14107   tree_view->priv->search_position_user_data = user_data;
14108   tree_view->priv->search_position_destroy = destroy;
14109   if (tree_view->priv->search_position_func == NULL)
14110     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14111 }
14112
14113 /**
14114  * gtk_tree_view_get_search_position_func:
14115  * @tree_view: A #GtkTreeView
14116  *
14117  * Returns the positioning function currently in use.
14118  *
14119  * Return value: the currently used function for positioning the search dialog.
14120  *
14121  * Since: 2.10
14122  */
14123 GtkTreeViewSearchPositionFunc
14124 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14125 {
14126   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14127
14128   return tree_view->priv->search_position_func;
14129 }
14130
14131
14132 static void
14133 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14134                                   GtkTreeView *tree_view)
14135 {
14136   if (tree_view->priv->disable_popdown)
14137     return;
14138
14139   if (tree_view->priv->search_entry_changed_id)
14140     {
14141       g_signal_handler_disconnect (tree_view->priv->search_entry,
14142                                    tree_view->priv->search_entry_changed_id);
14143       tree_view->priv->search_entry_changed_id = 0;
14144     }
14145   if (tree_view->priv->typeselect_flush_timeout)
14146     {
14147       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14148       tree_view->priv->typeselect_flush_timeout = 0;
14149     }
14150
14151   if (GTK_WIDGET_VISIBLE (search_dialog))
14152     {
14153       /* send focus-in event */
14154       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14155       gtk_widget_hide (search_dialog);
14156       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14157       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14158     }
14159 }
14160
14161 static void
14162 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14163                                     GtkWidget   *search_dialog,
14164                                     gpointer     user_data)
14165 {
14166   gint x, y;
14167   gint tree_x, tree_y;
14168   gint tree_width, tree_height;
14169   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14170   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14171   GtkRequisition requisition;
14172   gint monitor_num;
14173   GdkRectangle monitor;
14174
14175   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14176   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14177
14178   gtk_widget_realize (search_dialog);
14179
14180   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14181   gdk_drawable_get_size (tree_window,
14182                          &tree_width,
14183                          &tree_height);
14184   gtk_widget_size_request (search_dialog, &requisition);
14185
14186   if (tree_x + tree_width > gdk_screen_get_width (screen))
14187     x = gdk_screen_get_width (screen) - requisition.width;
14188   else if (tree_x + tree_width - requisition.width < 0)
14189     x = 0;
14190   else
14191     x = tree_x + tree_width - requisition.width;
14192
14193   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14194     y = gdk_screen_get_height (screen) - requisition.height;
14195   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14196     y = 0;
14197   else
14198     y = tree_y + tree_height;
14199
14200   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14201 }
14202
14203 static void
14204 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14205                                       GtkMenu  *menu,
14206                                       gpointer  data)
14207 {
14208   GtkTreeView *tree_view = (GtkTreeView *)data;
14209
14210   tree_view->priv->disable_popdown = 1;
14211   g_signal_connect (menu, "hide",
14212                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14213 }
14214
14215 /* Because we're visible but offscreen, we just set a flag in the preedit
14216  * callback.
14217  */
14218 static void
14219 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14220                                       GtkTreeView  *tree_view)
14221 {
14222   tree_view->priv->imcontext_changed = 1;
14223   if (tree_view->priv->typeselect_flush_timeout)
14224     {
14225       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14226       tree_view->priv->typeselect_flush_timeout =
14227         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14228                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14229                        tree_view);
14230     }
14231
14232 }
14233
14234 static void
14235 gtk_tree_view_search_activate (GtkEntry    *entry,
14236                                GtkTreeView *tree_view)
14237 {
14238   GtkTreePath *path;
14239   GtkRBNode *node;
14240   GtkRBTree *tree;
14241
14242   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14243                                     tree_view);
14244
14245   /* If we have a row selected and it's the cursor row, we activate
14246    * the row XXX */
14247   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14248     {
14249       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14250
14251       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14252
14253       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14254         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14255
14256       gtk_tree_path_free (path);
14257     }
14258 }
14259
14260 static gboolean
14261 gtk_tree_view_real_search_enable_popdown (gpointer data)
14262 {
14263   GtkTreeView *tree_view = (GtkTreeView *)data;
14264
14265   tree_view->priv->disable_popdown = 0;
14266
14267   return FALSE;
14268 }
14269
14270 static void
14271 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14272                                      gpointer   data)
14273 {
14274   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14275 }
14276
14277 static gboolean
14278 gtk_tree_view_search_delete_event (GtkWidget *widget,
14279                                    GdkEventAny *event,
14280                                    GtkTreeView *tree_view)
14281 {
14282   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14283
14284   gtk_tree_view_search_dialog_hide (widget, tree_view);
14285
14286   return TRUE;
14287 }
14288
14289 static gboolean
14290 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14291                                          GdkEventButton *event,
14292                                          GtkTreeView *tree_view)
14293 {
14294   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14295
14296   gtk_tree_view_search_dialog_hide (widget, tree_view);
14297
14298   if (event->window == tree_view->priv->bin_window)
14299     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14300
14301   return TRUE;
14302 }
14303
14304 static gboolean
14305 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14306                                    GdkEventScroll *event,
14307                                    GtkTreeView *tree_view)
14308 {
14309   gboolean retval = FALSE;
14310
14311   if (event->direction == GDK_SCROLL_UP)
14312     {
14313       gtk_tree_view_search_move (widget, tree_view, TRUE);
14314       retval = TRUE;
14315     }
14316   else if (event->direction == GDK_SCROLL_DOWN)
14317     {
14318       gtk_tree_view_search_move (widget, tree_view, FALSE);
14319       retval = TRUE;
14320     }
14321
14322   /* renew the flush timeout */
14323   if (retval && tree_view->priv->typeselect_flush_timeout
14324       && !tree_view->priv->search_custom_entry_set)
14325     {
14326       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14327       tree_view->priv->typeselect_flush_timeout =
14328         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14329                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14330                        tree_view);
14331     }
14332
14333   return retval;
14334 }
14335
14336 static gboolean
14337 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14338                                       GdkEventKey *event,
14339                                       GtkTreeView *tree_view)
14340 {
14341   gboolean retval = FALSE;
14342
14343   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14344   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14345
14346   /* close window and cancel the search */
14347   if (!tree_view->priv->search_custom_entry_set
14348       && (event->keyval == GDK_Escape ||
14349           event->keyval == GDK_Tab ||
14350             event->keyval == GDK_KP_Tab ||
14351             event->keyval == GDK_ISO_Left_Tab))
14352     {
14353       gtk_tree_view_search_dialog_hide (widget, tree_view);
14354       return TRUE;
14355     }
14356
14357   /* select previous matching iter */
14358   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14359     {
14360       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14361         gtk_widget_error_bell (widget);
14362
14363       retval = TRUE;
14364     }
14365
14366   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14367       && (event->keyval == GDK_g || event->keyval == GDK_G))
14368     {
14369       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14370         gtk_widget_error_bell (widget);
14371
14372       retval = TRUE;
14373     }
14374
14375   /* select next matching iter */
14376   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14377     {
14378       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14379         gtk_widget_error_bell (widget);
14380
14381       retval = TRUE;
14382     }
14383
14384   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14385       && (event->keyval == GDK_g || event->keyval == GDK_G))
14386     {
14387       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14388         gtk_widget_error_bell (widget);
14389
14390       retval = TRUE;
14391     }
14392
14393   /* renew the flush timeout */
14394   if (retval && tree_view->priv->typeselect_flush_timeout
14395       && !tree_view->priv->search_custom_entry_set)
14396     {
14397       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14398       tree_view->priv->typeselect_flush_timeout =
14399         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14400                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14401                        tree_view);
14402     }
14403
14404   return retval;
14405 }
14406
14407 /*  this function returns FALSE if there is a search string but
14408  *  nothing was found, and TRUE otherwise.
14409  */
14410 static gboolean
14411 gtk_tree_view_search_move (GtkWidget   *window,
14412                            GtkTreeView *tree_view,
14413                            gboolean     up)
14414 {
14415   gboolean ret;
14416   gint len;
14417   gint count = 0;
14418   const gchar *text;
14419   GtkTreeIter iter;
14420   GtkTreeModel *model;
14421   GtkTreeSelection *selection;
14422
14423   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14424
14425   g_return_val_if_fail (text != NULL, FALSE);
14426
14427   len = strlen (text);
14428
14429   if (up && tree_view->priv->selected_iter == 1)
14430     return strlen (text) < 1;
14431
14432   len = strlen (text);
14433
14434   if (len < 1)
14435     return TRUE;
14436
14437   model = gtk_tree_view_get_model (tree_view);
14438   selection = gtk_tree_view_get_selection (tree_view);
14439
14440   /* search */
14441   gtk_tree_selection_unselect_all (selection);
14442   if (!gtk_tree_model_get_iter_first (model, &iter))
14443     return TRUE;
14444
14445   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14446                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14447
14448   if (ret)
14449     {
14450       /* found */
14451       tree_view->priv->selected_iter += up?(-1):(1);
14452       return TRUE;
14453     }
14454   else
14455     {
14456       /* return to old iter */
14457       count = 0;
14458       gtk_tree_model_get_iter_first (model, &iter);
14459       gtk_tree_view_search_iter (model, selection,
14460                                  &iter, text,
14461                                  &count, tree_view->priv->selected_iter);
14462       return FALSE;
14463     }
14464 }
14465
14466 static gboolean
14467 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14468                                  gint          column,
14469                                  const gchar  *key,
14470                                  GtkTreeIter  *iter,
14471                                  gpointer      search_data)
14472 {
14473   gboolean retval = TRUE;
14474   const gchar *str;
14475   gchar *normalized_string;
14476   gchar *normalized_key;
14477   gchar *case_normalized_string = NULL;
14478   gchar *case_normalized_key = NULL;
14479   GValue value = {0,};
14480   GValue transformed = {0,};
14481
14482   gtk_tree_model_get_value (model, iter, column, &value);
14483
14484   g_value_init (&transformed, G_TYPE_STRING);
14485
14486   if (!g_value_transform (&value, &transformed))
14487     {
14488       g_value_unset (&value);
14489       return TRUE;
14490     }
14491
14492   g_value_unset (&value);
14493
14494   str = g_value_get_string (&transformed);
14495   if (!str)
14496     {
14497       g_value_unset (&transformed);
14498       return TRUE;
14499     }
14500
14501   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14502   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14503
14504   if (normalized_string && normalized_key)
14505     {
14506       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14507       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14508
14509       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14510         retval = FALSE;
14511     }
14512
14513   g_value_unset (&transformed);
14514   g_free (normalized_key);
14515   g_free (normalized_string);
14516   g_free (case_normalized_key);
14517   g_free (case_normalized_string);
14518
14519   return retval;
14520 }
14521
14522 static gboolean
14523 gtk_tree_view_search_iter (GtkTreeModel     *model,
14524                            GtkTreeSelection *selection,
14525                            GtkTreeIter      *iter,
14526                            const gchar      *text,
14527                            gint             *count,
14528                            gint              n)
14529 {
14530   GtkRBTree *tree = NULL;
14531   GtkRBNode *node = NULL;
14532   GtkTreePath *path;
14533
14534   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14535
14536   path = gtk_tree_model_get_path (model, iter);
14537   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14538
14539   do
14540     {
14541       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14542         {
14543           (*count)++;
14544           if (*count == n)
14545             {
14546               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14547                                             TRUE, 0.5, 0.0);
14548               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14549               gtk_tree_selection_select_iter (selection, iter);
14550
14551               if (path)
14552                 gtk_tree_path_free (path);
14553
14554               return TRUE;
14555             }
14556         }
14557
14558       if (node->children)
14559         {
14560           gboolean has_child;
14561           GtkTreeIter tmp;
14562
14563           tree = node->children;
14564           node = tree->root;
14565
14566           while (node->left != tree->nil)
14567             node = node->left;
14568
14569           tmp = *iter;
14570           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14571           gtk_tree_path_down (path);
14572
14573           /* sanity check */
14574           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14575         }
14576       else
14577         {
14578           gboolean done = FALSE;
14579
14580           do
14581             {
14582               node = _gtk_rbtree_next (tree, node);
14583
14584               if (node)
14585                 {
14586                   gboolean has_next;
14587
14588                   has_next = gtk_tree_model_iter_next (model, iter);
14589
14590                   done = TRUE;
14591                   gtk_tree_path_next (path);
14592
14593                   /* sanity check */
14594                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14595                 }
14596               else
14597                 {
14598                   gboolean has_parent;
14599                   GtkTreeIter tmp_iter = *iter;
14600
14601                   node = tree->parent_node;
14602                   tree = tree->parent_tree;
14603
14604                   if (!tree)
14605                     {
14606                       if (path)
14607                         gtk_tree_path_free (path);
14608
14609                       /* we've run out of tree, done with this func */
14610                       return FALSE;
14611                     }
14612
14613                   has_parent = gtk_tree_model_iter_parent (model,
14614                                                            iter,
14615                                                            &tmp_iter);
14616                   gtk_tree_path_up (path);
14617
14618                   /* sanity check */
14619                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14620                 }
14621             }
14622           while (!done);
14623         }
14624     }
14625   while (1);
14626
14627   return FALSE;
14628 }
14629
14630 static void
14631 gtk_tree_view_search_init (GtkWidget   *entry,
14632                            GtkTreeView *tree_view)
14633 {
14634   gint ret;
14635   gint len;
14636   gint count = 0;
14637   const gchar *text;
14638   GtkTreeIter iter;
14639   GtkTreeModel *model;
14640   GtkTreeSelection *selection;
14641
14642   g_return_if_fail (GTK_IS_ENTRY (entry));
14643   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14644
14645   text = gtk_entry_get_text (GTK_ENTRY (entry));
14646   len = strlen (text);
14647   model = gtk_tree_view_get_model (tree_view);
14648   selection = gtk_tree_view_get_selection (tree_view);
14649
14650   /* search */
14651   gtk_tree_selection_unselect_all (selection);
14652   if (tree_view->priv->typeselect_flush_timeout
14653       && !tree_view->priv->search_custom_entry_set)
14654     {
14655       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14656       tree_view->priv->typeselect_flush_timeout =
14657         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14658                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14659                        tree_view);
14660     }
14661
14662   if (len < 1)
14663     return;
14664
14665   if (!gtk_tree_model_get_iter_first (model, &iter))
14666     return;
14667
14668   ret = gtk_tree_view_search_iter (model, selection,
14669                                    &iter, text,
14670                                    &count, 1);
14671
14672   if (ret)
14673     tree_view->priv->selected_iter = 1;
14674 }
14675
14676 static void
14677 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14678                              GtkTreeView     *tree_view)
14679 {
14680   if (tree_view->priv->edited_column == NULL)
14681     return;
14682
14683   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14684   tree_view->priv->edited_column = NULL;
14685
14686   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14687     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14688
14689   g_signal_handlers_disconnect_by_func (cell_editable,
14690                                         gtk_tree_view_remove_widget,
14691                                         tree_view);
14692
14693   gtk_container_remove (GTK_CONTAINER (tree_view),
14694                         GTK_WIDGET (cell_editable));
14695
14696   /* FIXME should only redraw a single node */
14697   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14698 }
14699
14700 static gboolean
14701 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14702                              GtkTreePath *cursor_path)
14703 {
14704   GtkTreeIter iter;
14705   GdkRectangle background_area;
14706   GdkRectangle cell_area;
14707   GtkCellEditable *editable_widget = NULL;
14708   gchar *path_string;
14709   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14710   gint retval = FALSE;
14711   GtkRBTree *cursor_tree;
14712   GtkRBNode *cursor_node;
14713
14714   g_assert (tree_view->priv->focus_column);
14715
14716   if (! GTK_WIDGET_REALIZED (tree_view))
14717     return FALSE;
14718
14719   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14720       cursor_node == NULL)
14721     return FALSE;
14722
14723   path_string = gtk_tree_path_to_string (cursor_path);
14724   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14725
14726   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14727
14728   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14729                                            tree_view->priv->model,
14730                                            &iter,
14731                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14732                                            cursor_node->children?TRUE:FALSE);
14733   gtk_tree_view_get_background_area (tree_view,
14734                                      cursor_path,
14735                                      tree_view->priv->focus_column,
14736                                      &background_area);
14737   gtk_tree_view_get_cell_area (tree_view,
14738                                cursor_path,
14739                                tree_view->priv->focus_column,
14740                                &cell_area);
14741
14742   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14743                                         &editable_widget,
14744                                         NULL,
14745                                         path_string,
14746                                         &background_area,
14747                                         &cell_area,
14748                                         flags))
14749     {
14750       retval = TRUE;
14751       if (editable_widget != NULL)
14752         {
14753           gint left, right;
14754           GdkRectangle area;
14755           GtkCellRenderer *cell;
14756
14757           area = cell_area;
14758           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14759
14760           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14761
14762           area.x += left;
14763           area.width -= right + left;
14764
14765           gtk_tree_view_real_start_editing (tree_view,
14766                                             tree_view->priv->focus_column,
14767                                             cursor_path,
14768                                             editable_widget,
14769                                             &area,
14770                                             NULL,
14771                                             flags);
14772         }
14773
14774     }
14775   g_free (path_string);
14776   return retval;
14777 }
14778
14779 static void
14780 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14781                                   GtkTreeViewColumn *column,
14782                                   GtkTreePath       *path,
14783                                   GtkCellEditable   *cell_editable,
14784                                   GdkRectangle      *cell_area,
14785                                   GdkEvent          *event,
14786                                   guint              flags)
14787 {
14788   gint pre_val = tree_view->priv->vadjustment->value;
14789   GtkRequisition requisition;
14790
14791   tree_view->priv->edited_column = column;
14792   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14793
14794   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14795
14796   cell_area->y += pre_val - tree_view->priv->vadjustment->value;
14797
14798   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14799
14800   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14801
14802   if (requisition.height < cell_area->height)
14803     {
14804       gint diff = cell_area->height - requisition.height;
14805       gtk_tree_view_put (tree_view,
14806                          GTK_WIDGET (cell_editable),
14807                          cell_area->x, cell_area->y + diff/2,
14808                          cell_area->width, requisition.height);
14809     }
14810   else
14811     {
14812       gtk_tree_view_put (tree_view,
14813                          GTK_WIDGET (cell_editable),
14814                          cell_area->x, cell_area->y,
14815                          cell_area->width, cell_area->height);
14816     }
14817
14818   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14819                                    (GdkEvent *)event);
14820
14821   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14822   g_signal_connect (cell_editable, "remove_widget",
14823                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14824 }
14825
14826 static void
14827 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14828                             gboolean     cancel_editing)
14829 {
14830   GtkTreeViewColumn *column;
14831   GtkCellRenderer *cell;
14832
14833   if (tree_view->priv->edited_column == NULL)
14834     return;
14835
14836   /*
14837    * This is very evil. We need to do this, because
14838    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14839    * later on. If gtk_tree_view_row_changed notices
14840    * tree_view->priv->edited_column != NULL, it'll call
14841    * gtk_tree_view_stop_editing again. Bad things will happen then.
14842    *
14843    * Please read that again if you intend to modify anything here.
14844    */
14845
14846   column = tree_view->priv->edited_column;
14847   tree_view->priv->edited_column = NULL;
14848
14849   cell = _gtk_tree_view_column_get_edited_cell (column);
14850   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14851
14852   if (!cancel_editing)
14853     gtk_cell_editable_editing_done (column->editable_widget);
14854
14855   tree_view->priv->edited_column = column;
14856
14857   gtk_cell_editable_remove_widget (column->editable_widget);
14858 }
14859
14860
14861 /**
14862  * gtk_tree_view_set_hover_selection:
14863  * @tree_view: a #GtkTreeView
14864  * @hover: %TRUE to enable hover selection mode
14865  *
14866  * Enables of disables the hover selection mode of @tree_view.
14867  * Hover selection makes the selected row follow the pointer.
14868  * Currently, this works only for the selection modes
14869  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14870  *
14871  * Since: 2.6
14872  **/
14873 void
14874 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14875                                    gboolean     hover)
14876 {
14877   hover = hover != FALSE;
14878
14879   if (hover != tree_view->priv->hover_selection)
14880     {
14881       tree_view->priv->hover_selection = hover;
14882
14883       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14884     }
14885 }
14886
14887 /**
14888  * gtk_tree_view_get_hover_selection:
14889  * @tree_view: a #GtkTreeView
14890  *
14891  * Returns whether hover selection mode is turned on for @tree_view.
14892  *
14893  * Return value: %TRUE if @tree_view is in hover selection mode
14894  *
14895  * Since: 2.6
14896  **/
14897 gboolean
14898 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14899 {
14900   return tree_view->priv->hover_selection;
14901 }
14902
14903 /**
14904  * gtk_tree_view_set_hover_expand:
14905  * @tree_view: a #GtkTreeView
14906  * @expand: %TRUE to enable hover selection mode
14907  *
14908  * Enables of disables the hover expansion mode of @tree_view.
14909  * Hover expansion makes rows expand or collaps if the pointer
14910  * moves over them.
14911  *
14912  * Since: 2.6
14913  **/
14914 void
14915 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14916                                 gboolean     expand)
14917 {
14918   expand = expand != FALSE;
14919
14920   if (expand != tree_view->priv->hover_expand)
14921     {
14922       tree_view->priv->hover_expand = expand;
14923
14924       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14925     }
14926 }
14927
14928 /**
14929  * gtk_tree_view_get_hover_expand:
14930  * @tree_view: a #GtkTreeView
14931  *
14932  * Returns whether hover expansion mode is turned on for @tree_view.
14933  *
14934  * Return value: %TRUE if @tree_view is in hover expansion mode
14935  *
14936  * Since: 2.6
14937  **/
14938 gboolean
14939 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14940 {
14941   return tree_view->priv->hover_expand;
14942 }
14943
14944 /**
14945  * gtk_tree_view_set_rubber_banding:
14946  * @tree_view: a #GtkTreeView
14947  * @enable: %TRUE to enable rubber banding
14948  *
14949  * Enables or disables rubber banding in @tree_view.  If the selection mode
14950  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14951  * multiple rows by dragging the mouse.
14952  *
14953  * Since: 2.10
14954  **/
14955 void
14956 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14957                                   gboolean     enable)
14958 {
14959   enable = enable != FALSE;
14960
14961   if (enable != tree_view->priv->rubber_banding_enable)
14962     {
14963       tree_view->priv->rubber_banding_enable = enable;
14964
14965       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14966     }
14967 }
14968
14969 /**
14970  * gtk_tree_view_get_rubber_banding:
14971  * @tree_view: a #GtkTreeView
14972  *
14973  * Returns whether rubber banding is turned on for @tree_view.  If the
14974  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14975  * user to select multiple rows by dragging the mouse.
14976  *
14977  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14978  *
14979  * Since: 2.10
14980  **/
14981 gboolean
14982 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14983 {
14984   return tree_view->priv->rubber_banding_enable;
14985 }
14986
14987 /**
14988  * gtk_tree_view_is_rubber_banding_active:
14989  * @tree_view: a #GtkTreeView
14990  *
14991  * Returns whether a rubber banding operation is currently being done
14992  * in @tree_view.
14993  *
14994  * Return value: %TRUE if a rubber banding operation is currently being
14995  * done in @tree_view.
14996  *
14997  * Since: 2.12
14998  **/
14999 gboolean
15000 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
15001 {
15002   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15003
15004   if (tree_view->priv->rubber_banding_enable
15005       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15006     return TRUE;
15007
15008   return FALSE;
15009 }
15010
15011 /**
15012  * gtk_tree_view_get_row_separator_func:
15013  * @tree_view: a #GtkTreeView
15014  *
15015  * Returns the current row separator function.
15016  *
15017  * Return value: the current row separator function.
15018  *
15019  * Since: 2.6
15020  **/
15021 GtkTreeViewRowSeparatorFunc
15022 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15023 {
15024   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15025
15026   return tree_view->priv->row_separator_func;
15027 }
15028
15029 /**
15030  * gtk_tree_view_set_row_separator_func:
15031  * @tree_view: a #GtkTreeView
15032  * @func: a #GtkTreeViewRowSeparatorFunc
15033  * @data: user data to pass to @func, or %NULL
15034  * @destroy: destroy notifier for @data, or %NULL
15035  *
15036  * Sets the row separator function, which is used to determine
15037  * whether a row should be drawn as a separator. If the row separator
15038  * function is %NULL, no separators are drawn. This is the default value.
15039  *
15040  * Since: 2.6
15041  **/
15042 void
15043 gtk_tree_view_set_row_separator_func (GtkTreeView                *tree_view,
15044                                       GtkTreeViewRowSeparatorFunc func,
15045                                       gpointer                    data,
15046                                       GtkDestroyNotify            destroy)
15047 {
15048   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15049
15050   if (tree_view->priv->row_separator_destroy)
15051     (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
15052
15053   tree_view->priv->row_separator_func = func;
15054   tree_view->priv->row_separator_data = data;
15055   tree_view->priv->row_separator_destroy = destroy;
15056 }
15057
15058
15059 static void
15060 gtk_tree_view_grab_notify (GtkWidget *widget,
15061                            gboolean   was_grabbed)
15062 {
15063   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15064
15065   tree_view->priv->in_grab = !was_grabbed;
15066
15067   if (!was_grabbed)
15068     {
15069       tree_view->priv->pressed_button = -1;
15070
15071       if (tree_view->priv->rubber_band_status)
15072         gtk_tree_view_stop_rubber_band (tree_view);
15073     }
15074 }
15075
15076 static void
15077 gtk_tree_view_state_changed (GtkWidget      *widget,
15078                              GtkStateType    previous_state)
15079 {
15080   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15081
15082   if (GTK_WIDGET_REALIZED (widget))
15083     {
15084       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15085       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15086     }
15087
15088   gtk_widget_queue_draw (widget);
15089 }
15090
15091 /**
15092  * gtk_tree_view_get_grid_lines:
15093  * @tree_view: a #GtkTreeView
15094  *
15095  * Returns which grid lines are enabled in @tree_view.
15096  *
15097  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15098  * are enabled.
15099  *
15100  * Since: 2.10
15101  */
15102 GtkTreeViewGridLines
15103 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15104 {
15105   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15106
15107   return tree_view->priv->grid_lines;
15108 }
15109
15110 /**
15111  * gtk_tree_view_set_grid_lines:
15112  * @tree_view: a #GtkTreeView
15113  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15114  * enable.
15115  *
15116  * Sets which grid lines to draw in @tree_view.
15117  *
15118  * Since: 2.10
15119  */
15120 void
15121 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15122                               GtkTreeViewGridLines   grid_lines)
15123 {
15124   GtkTreeViewPrivate *priv;
15125   GtkWidget *widget;
15126   GtkTreeViewGridLines old_grid_lines;
15127
15128   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15129
15130   priv = tree_view->priv;
15131   widget = GTK_WIDGET (tree_view);
15132
15133   old_grid_lines = priv->grid_lines;
15134   priv->grid_lines = grid_lines;
15135
15136   if (GTK_WIDGET_REALIZED (widget))
15137     {
15138       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15139           priv->grid_line_gc)
15140         {
15141           g_object_unref (priv->grid_line_gc);
15142           priv->grid_line_gc = NULL;
15143         }
15144
15145       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15146           !priv->grid_line_gc)
15147         {
15148           gint line_width;
15149           guint8 *dash_list;
15150
15151           gtk_widget_style_get (widget,
15152                                 "grid-line-width", &line_width,
15153                                 "grid-line-pattern", (gchar *)&dash_list,
15154                                 NULL);
15155
15156           priv->grid_line_gc = gdk_gc_new (widget->window);
15157           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15158
15159           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15160                                       GDK_LINE_ON_OFF_DASH,
15161                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15162           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15163
15164           g_free (dash_list);
15165         }
15166     }
15167
15168   if (old_grid_lines != grid_lines)
15169     {
15170       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15171
15172       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15173     }
15174 }
15175
15176 /**
15177  * gtk_tree_view_get_enable_tree_lines:
15178  * @tree_view: a #GtkTreeView.
15179  *
15180  * Returns whether or not tree lines are drawn in @tree_view.
15181  *
15182  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15183  * otherwise.
15184  *
15185  * Since: 2.10
15186  */
15187 gboolean
15188 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15189 {
15190   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15191
15192   return tree_view->priv->tree_lines_enabled;
15193 }
15194
15195 /**
15196  * gtk_tree_view_set_enable_tree_lines:
15197  * @tree_view: a #GtkTreeView
15198  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15199  *
15200  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15201  * This does not have any visible effects for lists.
15202  *
15203  * Since: 2.10
15204  */
15205 void
15206 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15207                                      gboolean     enabled)
15208 {
15209   GtkTreeViewPrivate *priv;
15210   GtkWidget *widget;
15211   gboolean was_enabled;
15212
15213   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15214
15215   enabled = enabled != FALSE;
15216
15217   priv = tree_view->priv;
15218   widget = GTK_WIDGET (tree_view);
15219
15220   was_enabled = priv->tree_lines_enabled;
15221
15222   priv->tree_lines_enabled = enabled;
15223
15224   if (GTK_WIDGET_REALIZED (widget))
15225     {
15226       if (!enabled && priv->tree_line_gc)
15227         {
15228           g_object_unref (priv->tree_line_gc);
15229           priv->tree_line_gc = NULL;
15230         }
15231
15232       if (enabled && !priv->tree_line_gc)
15233         {
15234           gint line_width;
15235           guint8 *dash_list;
15236           gtk_widget_style_get (widget,
15237                                 "tree-line-width", &line_width,
15238                                 "tree-line-pattern", (gchar *)&dash_list,
15239                                 NULL);
15240
15241           priv->tree_line_gc = gdk_gc_new (widget->window);
15242           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15243
15244           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15245                                       GDK_LINE_ON_OFF_DASH,
15246                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15247           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15248
15249           g_free (dash_list);
15250         }
15251     }
15252
15253   if (was_enabled != enabled)
15254     {
15255       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15256
15257       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15258     }
15259 }
15260
15261
15262 /**
15263  * gtk_tree_view_set_show_expanders:
15264  * @tree_view: a #GtkTreeView
15265  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15266  *
15267  * Sets whether to draw and enable expanders and indent child rows in
15268  * @tree_view.  When disabled there will be no expanders visible in trees
15269  * and there will be no way to expand and collapse rows by default.  Also
15270  * note that hiding the expanders will disable the default indentation.  You
15271  * can set a custom indentation in this case using
15272  * gtk_tree_view_set_level_indentation().
15273  * This does not have any visible effects for lists.
15274  *
15275  * Since: 2.12
15276  */
15277 void
15278 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15279                                   gboolean     enabled)
15280 {
15281   gboolean was_enabled;
15282
15283   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15284
15285   enabled = enabled != FALSE;
15286   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15287
15288   if (enabled)
15289     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15290   else
15291     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15292
15293   if (enabled != was_enabled)
15294     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15295 }
15296
15297 /**
15298  * gtk_tree_view_get_show_expanders:
15299  * @tree_view: a #GtkTreeView.
15300  *
15301  * Returns whether or not expanders are drawn in @tree_view.
15302  *
15303  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15304  * otherwise.
15305  *
15306  * Since: 2.12
15307  */
15308 gboolean
15309 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15310 {
15311   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15312
15313   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15314 }
15315
15316 /**
15317  * gtk_tree_view_set_level_indentation:
15318  * @tree_view: a #GtkTreeView
15319  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15320  *
15321  * Sets the amount of extra indentation for child levels to use in @tree_view
15322  * in addition to the default indentation.  The value should be specified in
15323  * pixels, a value of 0 disables this feature and in this case only the default
15324  * indentation will be used.
15325  * This does not have any visible effects for lists.
15326  *
15327  * Since: 2.12
15328  */
15329 void
15330 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15331                                      gint         indentation)
15332 {
15333   tree_view->priv->level_indentation = indentation;
15334
15335   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15336 }
15337
15338 /**
15339  * gtk_tree_view_get_level_indentation:
15340  * @tree_view: a #GtkTreeView.
15341  *
15342  * Returns the amount, in pixels, of extra indentation for child levels
15343  * in @tree_view.
15344  *
15345  * Return value: the amount of extra indentation for child levels in
15346  * @tree_view.  A return value of 0 means that this feature is disabled.
15347  *
15348  * Since: 2.12
15349  */
15350 gint
15351 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15352 {
15353   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15354
15355   return tree_view->priv->level_indentation;
15356 }
15357
15358 /**
15359  * gtk_tree_view_set_tooltip_row:
15360  * @tree_view: a #GtkTreeView
15361  * @tooltip: a #GtkTooltip
15362  * @path: a #GtkTreePath
15363  *
15364  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15365  * See also gtk_tooltip_set_tip_area().
15366  *
15367  * Since: 2.12
15368  */
15369 void
15370 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15371                                GtkTooltip  *tooltip,
15372                                GtkTreePath *path)
15373 {
15374   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15375   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15376
15377   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15378 }
15379
15380 /**
15381  * gtk_tree_view_set_tooltip_cell:
15382  * @tree_view: a #GtkTreeView
15383  * @tooltip: a #GtkTooltip
15384  * @path: a #GtkTreePath or %NULL
15385  * @column: a #GtkTreeViewColumn or %NULL
15386  * @cell: a #GtkCellRenderer or %NULL
15387  *
15388  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15389  * in common.  For example if @path is %NULL and @column is set, the tip
15390  * area will be set to the full area covered by @column.  See also
15391  * gtk_tooltip_set_tip_area().
15392  *
15393  * Note that if @path is not specified and @cell is set and part of a column
15394  * containing the expander, the tooltip might not show and hide at the correct
15395  * position.  In such cases @path must be set to the current node under the
15396  * mouse cursor for this function to operate correctly.
15397  *
15398  * Since: 2.12
15399  */
15400 void
15401 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15402                                 GtkTooltip        *tooltip,
15403                                 GtkTreePath       *path,
15404                                 GtkTreeViewColumn *column,
15405                                 GtkCellRenderer   *cell)
15406 {
15407   GdkRectangle rect;
15408
15409   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15410   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15411
15412   if (column)
15413     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
15414
15415   if (cell)
15416     g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
15417
15418   /* Determine x values. */
15419   if (column && cell)
15420     {
15421       GdkRectangle tmp;
15422       gint start, width;
15423
15424       /* We always pass in path here, whether it is NULL or not.
15425        * For cells in expander columns path must be specified so that
15426        * we can correctly account for the indentation.  This also means
15427        * that the tooltip is constrained vertically by the "Determine y
15428        * values" code below; this is not a real problem since cells actually
15429        * don't stretch vertically in constrast to columns.
15430        */
15431       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15432       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15433
15434       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15435                                                          tmp.x + start, 0,
15436                                                          &rect.x, NULL);
15437       rect.width = width;
15438     }
15439   else if (column)
15440     {
15441       GdkRectangle tmp;
15442
15443       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15444       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15445                                                          tmp.x, 0,
15446                                                          &rect.x, NULL);
15447       rect.width = tmp.width;
15448     }
15449   else
15450     {
15451       rect.x = 0;
15452       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15453     }
15454
15455   /* Determine y values. */
15456   if (path)
15457     {
15458       GdkRectangle tmp;
15459
15460       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15461       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15462                                                          0, tmp.y,
15463                                                          NULL, &rect.y);
15464       rect.height = tmp.height;
15465     }
15466   else
15467     {
15468       rect.y = 0;
15469       rect.height = tree_view->priv->vadjustment->page_size;
15470     }
15471
15472   gtk_tooltip_set_tip_area (tooltip, &rect);
15473 }
15474
15475 /**
15476  * gtk_tree_view_get_tooltip_context:
15477  * @tree_view: a #GtkTreeView
15478  * @x: the x coordinate (relative to widget coordinates)
15479  * @y: the y coordinate (relative to widget coordinates)
15480  * @keyboard_tip: whether this is a keyboard tooltip or not
15481  * @model: a pointer to receive a #GtkTreeModel or %NULL
15482  * @path: a pointer to receive a #GtkTreePath or %NULL
15483  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15484  *
15485  * This function is supposed to be used in a #GtkWidget::query-tooltip
15486  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15487  * which are received in the signal handler, should be passed to this
15488  * function without modification.
15489  *
15490  * The return value indicates whether there is a tree view row at the given
15491  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15492  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15493  * @model, @path and @iter which have been provided will be set to point to
15494  * that row and the corresponding model.  @x and @y will always be converted
15495  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15496  *
15497  * Return value: whether or not the given tooltip context points to a row.
15498  *
15499  * Since: 2.12
15500  */
15501 gboolean
15502 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15503                                    gint          *x,
15504                                    gint          *y,
15505                                    gboolean       keyboard_tip,
15506                                    GtkTreeModel **model,
15507                                    GtkTreePath  **path,
15508                                    GtkTreeIter   *iter)
15509 {
15510   GtkTreePath *tmppath = NULL;
15511
15512   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15513   g_return_val_if_fail (x != NULL, FALSE);
15514   g_return_val_if_fail (y != NULL, FALSE);
15515
15516   if (keyboard_tip)
15517     {
15518       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15519
15520       if (!tmppath)
15521         return FALSE;
15522     }
15523   else
15524     {
15525       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15526                                                          x, y);
15527
15528       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15529                                           &tmppath, NULL, NULL, NULL))
15530         return FALSE;
15531     }
15532
15533   if (model)
15534     *model = gtk_tree_view_get_model (tree_view);
15535
15536   if (iter)
15537     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15538                              iter, tmppath);
15539
15540   if (path)
15541     *path = tmppath;
15542   else
15543     gtk_tree_path_free (tmppath);
15544
15545   return TRUE;
15546 }
15547
15548 static gboolean
15549 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15550                                     gint        x,
15551                                     gint        y,
15552                                     gboolean    keyboard_tip,
15553                                     GtkTooltip *tooltip,
15554                                     gpointer    data)
15555 {
15556   gchar *str;
15557   GtkTreeIter iter;
15558   GtkTreePath *path;
15559   GtkTreeModel *model;
15560   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15561
15562   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15563                                           &x, &y,
15564                                           keyboard_tip,
15565                                           &model, &path, &iter))
15566     return FALSE;
15567
15568   gtk_tree_model_get (model, &iter, tree_view->priv->tooltip_column, &str, -1);
15569
15570   if (!str)
15571     {
15572       gtk_tree_path_free (path);
15573       return FALSE;
15574     }
15575
15576   gtk_tooltip_set_markup (tooltip, str);
15577   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15578
15579   gtk_tree_path_free (path);
15580   g_free (str);
15581
15582   return TRUE;
15583 }
15584
15585 /**
15586  * gtk_tree_view_set_tooltip_column:
15587  * @tree_view: a #GtkTreeView
15588  * @column: an integer, which is a valid column number for @tree_view's model
15589  *
15590  * If you only plan to have simple (text-only) tooltips on full rows, you
15591  * can use this function to have #GtkTreeView handle these automatically
15592  * for you. @column should be set to the column in @tree_view's model
15593  * containing the tooltip texts, or -1 to disable this feature.
15594  *
15595  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15596  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15597  *
15598  * Since: 2.12
15599  */
15600 void
15601 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15602                                   gint         column)
15603 {
15604   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15605
15606   if (column == tree_view->priv->tooltip_column)
15607     return;
15608
15609   if (column == -1)
15610     {
15611       g_signal_handlers_disconnect_by_func (tree_view,
15612                                             gtk_tree_view_set_tooltip_query_cb,
15613                                             NULL);
15614       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15615     }
15616   else
15617     {
15618       if (tree_view->priv->tooltip_column == -1)
15619         {
15620           g_signal_connect (tree_view, "query-tooltip",
15621                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15622           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15623         }
15624     }
15625
15626   tree_view->priv->tooltip_column = column;
15627   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15628 }
15629
15630 /**
15631  * gtk_tree_view_get_tooltip_column:
15632  * @tree_view: a #GtkTreeView
15633  *
15634  * Returns the column of @tree_view's model which is being used for
15635  * displaying tooltips on @tree_view's rows.
15636  *
15637  * Return value: the index of the tooltip column that is currently being
15638  * used, or -1 if this is disabled.
15639  *
15640  * Since: 2.12
15641  */
15642 gint
15643 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15644 {
15645   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15646
15647   return tree_view->priv->tooltip_column;
15648 }
15649
15650 #define __GTK_TREE_VIEW_C__
15651 #include "gtkaliasdef.c"