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 *_unused_source_target_list;
  96   GdkDragAction source_actions;
  97
  98   GtkTargetList *_unused_dest_target_list;
  99
 100   guint source_set : 1;
 101   guint dest_set : 1;
 102 };
 103
 104
 105 /* Signals */
 106 enum
 107 {
 108   ROW_ACTIVATED,
 109   TEST_EXPAND_ROW,
 110   TEST_COLLAPSE_ROW,
 111   ROW_EXPANDED,
 112   ROW_COLLAPSED,
 113   COLUMNS_CHANGED,
 114   CURSOR_CHANGED,
 115   MOVE_CURSOR,
 116   SELECT_ALL,
 117   UNSELECT_ALL,
 118   SELECT_CURSOR_ROW,
 119   TOGGLE_CURSOR_ROW,
 120   EXPAND_COLLAPSE_CURSOR_ROW,
 121   SELECT_CURSOR_PARENT,
 122   START_INTERACTIVE_SEARCH,
 123   LAST_SIGNAL
 124 };
 125
 126 /* Properties */
 127 enum {
 128   PROP_0,
 129   PROP_MODEL,
 130   PROP_HADJUSTMENT,
 131   PROP_VADJUSTMENT,
 132   PROP_HEADERS_VISIBLE,
 133   PROP_HEADERS_CLICKABLE,
 134   PROP_EXPANDER_COLUMN,
 135   PROP_REORDERABLE,
 136   PROP_RULES_HINT,
 137   PROP_ENABLE_SEARCH,
 138   PROP_SEARCH_COLUMN,
 139   PROP_FIXED_HEIGHT_MODE,
 140   PROP_HOVER_SELECTION,
 141   PROP_HOVER_EXPAND,
 142   PROP_SHOW_EXPANDERS,
 143   PROP_LEVEL_INDENTATION,
 144   PROP_RUBBER_BANDING,
 145   PROP_ENABLE_GRID_LINES,
 146   PROP_ENABLE_TREE_LINES,
 147   PROP_TOOLTIP_COLUMN
 148 };
 149
 150 /* object signals */
 151 static void     gtk_tree_view_finalize             (GObject          *object);
 152 static void     gtk_tree_view_set_property         (GObject         *object,
 153                                                     guint            prop_id,
 154                                                     const GValue    *value,
 155                                                     GParamSpec      *pspec);
 156 static void     gtk_tree_view_get_property         (GObject         *object,
 157                                                     guint            prop_id,
 158                                                     GValue          *value,
 159                                                     GParamSpec      *pspec);
 160
 161 /* gtkobject signals */
 162 static void     gtk_tree_view_destroy              (GtkObject        *object);
 163
 164 /* gtkwidget signals */
 165 static void     gtk_tree_view_realize              (GtkWidget        *widget);
 166 static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
 167 static void     gtk_tree_view_map                  (GtkWidget        *widget);
 168 static void     gtk_tree_view_size_request         (GtkWidget        *widget,
 169                                                     GtkRequisition   *requisition);
 170 static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
 171                                                     GtkAllocation    *allocation);
 172 static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
 173                                                     GdkEventExpose   *event);
 174 static gboolean gtk_tree_view_key_press            (GtkWidget        *widget,
 175                                                     GdkEventKey      *event);
 176 static gboolean gtk_tree_view_key_release          (GtkWidget        *widget,
 177                                                     GdkEventKey      *event);
 178 static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
 179                                                     GdkEventMotion   *event);
 180 static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
 181                                                     GdkEventCrossing *event);
 182 static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
 183                                                     GdkEventCrossing *event);
 184 static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
 185                                                     GdkEventButton   *event);
 186 static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
 187                                                     GdkEventButton   *event);
 188 static gboolean gtk_tree_view_grab_broken          (GtkWidget          *widget,
 189                                                     GdkEventGrabBroken *event);
 190 #if 0
 191 static gboolean gtk_tree_view_configure            (GtkWidget         *widget,
 192                                                     GdkEventConfigure *event);
 193 #endif
 194
 195 static void     gtk_tree_view_set_focus_child      (GtkContainer     *container,
 196                                                     GtkWidget        *child);
 197 static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
 198                                                     GdkEventFocus    *event);
 199 static gint     gtk_tree_view_focus                (GtkWidget        *widget,
 200                                                     GtkDirectionType  direction);
 201 static void     gtk_tree_view_grab_focus           (GtkWidget        *widget);
 202 static void     gtk_tree_view_style_set            (GtkWidget        *widget,
 203                                                     GtkStyle         *previous_style);
 204 static void     gtk_tree_view_grab_notify          (GtkWidget        *widget,
 205                                                     gboolean          was_grabbed);
 206 static void     gtk_tree_view_state_changed        (GtkWidget        *widget,
 207                                                     GtkStateType      previous_state);
 208
 209 /* container signals */
 210 static void     gtk_tree_view_remove               (GtkContainer     *container,
 211                                                     GtkWidget        *widget);
 212 static void     gtk_tree_view_forall               (GtkContainer     *container,
 213                                                     gboolean          include_internals,
 214                                                     GtkCallback       callback,
 215                                                     gpointer          callback_data);
 216
 217 /* Source side drag signals */
 218 static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
 219                                             GdkDragContext   *context);
 220 static void gtk_tree_view_drag_end         (GtkWidget        *widget,
 221                                             GdkDragContext   *context);
 222 static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
 223                                             GdkDragContext   *context,
 224                                             GtkSelectionData *selection_data,
 225                                             guint             info,
 226                                             guint             time);
 227 static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
 228                                             GdkDragContext   *context);
 229
 230 /* Target side drag signals */
 231 static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
 232                                                   GdkDragContext   *context,
 233                                                   guint             time);
 234 static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
 235                                                   GdkDragContext   *context,
 236                                                   gint              x,
 237                                                   gint              y,
 238                                                   guint             time);
 239 static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
 240                                                   GdkDragContext   *context,
 241                                                   gint              x,
 242                                                   gint              y,
 243                                                   guint             time);
 244 static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
 245                                                   GdkDragContext   *context,
 246                                                   gint              x,
 247                                                   gint              y,
 248                                                   GtkSelectionData *selection_data,
 249                                                   guint             info,
 250                                                   guint             time);
 251
 252 /* tree_model signals */
 253 static void gtk_tree_view_set_adjustments                 (GtkTreeView     *tree_view,
 254                                                            GtkAdjustment   *hadj,
 255                                                            GtkAdjustment   *vadj);
 256 static gboolean gtk_tree_view_real_move_cursor            (GtkTreeView     *tree_view,
 257                                                            GtkMovementStep  step,
 258                                                            gint             count);
 259 static gboolean gtk_tree_view_real_select_all             (GtkTreeView     *tree_view);
 260 static gboolean gtk_tree_view_real_unselect_all           (GtkTreeView     *tree_view);
 261 static gboolean gtk_tree_view_real_select_cursor_row      (GtkTreeView     *tree_view,
 262                                                            gboolean         start_editing);
 263 static gboolean gtk_tree_view_real_toggle_cursor_row      (GtkTreeView     *tree_view);
 264 static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView     *tree_view,
 265                                                                gboolean         logical,
 266                                                                gboolean         expand,
 267                                                                gboolean         open_all);
 268 static gboolean gtk_tree_view_real_select_cursor_parent   (GtkTreeView     *tree_view);
 269 static void gtk_tree_view_row_changed                     (GtkTreeModel    *model,
 270                                                            GtkTreePath     *path,
 271                                                            GtkTreeIter     *iter,
 272                                                            gpointer         data);
 273 static void gtk_tree_view_row_inserted                    (GtkTreeModel    *model,
 274                                                            GtkTreePath     *path,
 275                                                            GtkTreeIter     *iter,
 276                                                            gpointer         data);
 277 static void gtk_tree_view_row_has_child_toggled           (GtkTreeModel    *model,
 278                                                            GtkTreePath     *path,
 279                                                            GtkTreeIter     *iter,
 280                                                            gpointer         data);
 281 static void gtk_tree_view_row_deleted                     (GtkTreeModel    *model,
 282                                                            GtkTreePath     *path,
 283                                                            gpointer         data);
 284 static void gtk_tree_view_rows_reordered                  (GtkTreeModel    *model,
 285                                                            GtkTreePath     *parent,
 286                                                            GtkTreeIter     *iter,
 287                                                            gint            *new_order,
 288                                                            gpointer         data);
 289
 290 /* Incremental reflow */
 291 static gboolean validate_row             (GtkTreeView *tree_view,
 292                                           GtkRBTree   *tree,
 293                                           GtkRBNode   *node,
 294                                           GtkTreeIter *iter,
 295                                           GtkTreePath *path);
 296 static void     validate_visible_area    (GtkTreeView *tree_view);
 297 static gboolean validate_rows_handler    (GtkTreeView *tree_view);
 298 static gboolean do_validate_rows         (GtkTreeView *tree_view,
 299                                           gboolean     size_request);
 300 static gboolean validate_rows            (GtkTreeView *tree_view);
 301 static gboolean presize_handler_callback (gpointer     data);
 302 static void     install_presize_handler  (GtkTreeView *tree_view);
 303 static void     install_scroll_sync_handler (GtkTreeView *tree_view);
 304 static void     gtk_tree_view_set_top_row   (GtkTreeView *tree_view,
 305                                              GtkTreePath *path,
 306                                              gint         offset);
 307 static void     gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
 308 static void     gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
 309 static void     invalidate_empty_focus      (GtkTreeView *tree_view);
 310
 311 /* Internal functions */
 312 static gboolean gtk_tree_view_is_expander_column             (GtkTreeView        *tree_view,
 313                                                               GtkTreeViewColumn  *column);
 314 static void     gtk_tree_view_add_move_binding               (GtkBindingSet      *binding_set,
 315                                                               guint               keyval,
 316                                                               guint               modmask,
 317                                                               gboolean            add_shifted_binding,
 318                                                               GtkMovementStep     step,
 319                                                               gint                count);
 320 static gint     gtk_tree_view_unref_and_check_selection_tree (GtkTreeView        *tree_view,
 321                                                               GtkRBTree          *tree);
 322 static void     gtk_tree_view_queue_draw_path                (GtkTreeView        *tree_view,
 323                                                               GtkTreePath        *path,
 324                                                               const GdkRectangle *clip_rect);
 325 static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView        *tree_view,
 326                                                               GtkRBTree          *tree,
 327                                                               GtkRBNode          *node,
 328                                                               const GdkRectangle *clip_rect);
 329 static void     gtk_tree_view_draw_arrow                     (GtkTreeView        *tree_view,
 330                                                               GtkRBTree          *tree,
 331                                                               GtkRBNode          *node,
 332                                                               gint                x,
 333                                                               gint                y);
 334 static void     gtk_tree_view_get_arrow_xrange               (GtkTreeView        *tree_view,
 335                                                               GtkRBTree          *tree,
 336                                                               gint               *x1,
 337                                                               gint               *x2);
 338 static gint     gtk_tree_view_new_column_width               (GtkTreeView        *tree_view,
 339                                                               gint                i,
 340                                                               gint               *x);
 341 static void     gtk_tree_view_adjustment_changed             (GtkAdjustment      *adjustment,
 342                                                               GtkTreeView        *tree_view);
 343 static void     gtk_tree_view_build_tree                     (GtkTreeView        *tree_view,
 344                                                               GtkRBTree          *tree,
 345                                                               GtkTreeIter        *iter,
 346                                                               gint                depth,
 347                                                               gboolean            recurse);
 348 static 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 void     add_expand_collapse_timeout                  (GtkTreeView        *tree_view,
 395                                                               GtkRBTree          *tree,
 396                                                               GtkRBNode          *node,
 397                                                               gboolean            expand);
 398 static void     remove_expand_collapse_timeout               (GtkTreeView        *tree_view);
 399 static void     cancel_arrow_animation                       (GtkTreeView        *tree_view);
 400 static gboolean do_expand_collapse                           (GtkTreeView        *tree_view);
 401 static void     gtk_tree_view_stop_rubber_band               (GtkTreeView        *tree_view);
 402
 403 /* interactive search */
 404 static void     gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
 405 static void     gtk_tree_view_search_dialog_hide     (GtkWidget        *search_dialog,
 406                                                          GtkTreeView      *tree_view);
 407 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 408                                                          GtkWidget        *search_dialog,
 409                                                          gpointer          user_data);
 410 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 411                                                          GtkMenu          *menu,
 412                                                          gpointer          data);
 413 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 414                                                          GtkTreeView      *tree_view);
 415 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 416                                                          GtkTreeView      *tree_view);
 417 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 418 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 419                                                          gpointer          data);
 420 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 421                                                          GdkEventAny      *event,
 422                                                          GtkTreeView      *tree_view);
 423 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 424                                                          GdkEventButton   *event,
 425                                                          GtkTreeView      *tree_view);
 426 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 427                                                          GdkEventScroll   *event,
 428                                                          GtkTreeView      *tree_view);
 429 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 430                                                          GdkEventKey      *event,
 431                                                          GtkTreeView      *tree_view);
 432 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 433                                                          GtkTreeView      *tree_view,
 434                                                          gboolean          up);
 435 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 436                                                          gint              column,
 437                                                          const gchar      *key,
 438                                                          GtkTreeIter      *iter,
 439                                                          gpointer          search_data);
 440 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 441                                                          GtkTreeSelection *selection,
 442                                                          GtkTreeIter      *iter,
 443                                                          const gchar      *text,
 444                                                          gint             *count,
 445                                                          gint              n);
 446 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 447                                                          GtkTreeView      *tree_view);
 448 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 449                                                          GtkWidget        *child_widget,
 450                                                          gint              x,
 451                                                          gint              y,
 452                                                          gint              width,
 453                                                          gint              height);
 454 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 455                                                          GtkTreePath      *cursor_path);
 456 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 457                                               GtkTreeViewColumn *column,
 458                                               GtkTreePath       *path,
 459                                               GtkCellEditable   *cell_editable,
 460                                               GdkRectangle      *cell_area,
 461                                               GdkEvent          *event,
 462                                               guint              flags);
 463 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 464                                                          gboolean     cancel_editing);
 465 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 466                                                              gboolean     keybinding);
 467 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 468 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 469                                                          GtkTreeViewColumn *column,
 470                                                          gint               drop_position);
 471
 472 /* GtkBuildable */
 473 static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
 474                                                GtkBuilder  *builder,
 475                                                GObject     *child,
 476                                                const gchar *type);
 477 static void gtk_tree_view_buildable_init      (GtkBuildableIface *iface);
 478
 479
 480 static gboolean scroll_row_timeout                   (gpointer     data);
 481 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 482 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 483
 484 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 485
 486 \f
 487
 488 /* GType Methods
 489  */
 490
 491 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 492                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 493                                                 gtk_tree_view_buildable_init))
 494
 495 static void
 496 gtk_tree_view_class_init (GtkTreeViewClass *class)
 497 {
 498   GObjectClass *o_class;
 499   GtkObjectClass *object_class;
 500   GtkWidgetClass *widget_class;
 501   GtkContainerClass *container_class;
 502   GtkBindingSet *binding_set;
 503
 504   binding_set = gtk_binding_set_by_class (class);
 505
 506   o_class = (GObjectClass *) class;
 507   object_class = (GtkObjectClass *) class;
 508   widget_class = (GtkWidgetClass *) class;
 509   container_class = (GtkContainerClass *) class;
 510
 511   /* GObject signals */
 512   o_class->set_property = gtk_tree_view_set_property;
 513   o_class->get_property = gtk_tree_view_get_property;
 514   o_class->finalize = gtk_tree_view_finalize;
 515
 516   /* GtkObject signals */
 517   object_class->destroy = gtk_tree_view_destroy;
 518
 519   /* GtkWidget signals */
 520   widget_class->map = gtk_tree_view_map;
 521   widget_class->realize = gtk_tree_view_realize;
 522   widget_class->unrealize = gtk_tree_view_unrealize;
 523   widget_class->size_request = gtk_tree_view_size_request;
 524   widget_class->size_allocate = gtk_tree_view_size_allocate;
 525   widget_class->button_press_event = gtk_tree_view_button_press;
 526   widget_class->button_release_event = gtk_tree_view_button_release;
 527   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 528   /*widget_class->configure_event = gtk_tree_view_configure;*/
 529   widget_class->motion_notify_event = gtk_tree_view_motion;
 530   widget_class->expose_event = gtk_tree_view_expose;
 531   widget_class->key_press_event = gtk_tree_view_key_press;
 532   widget_class->key_release_event = gtk_tree_view_key_release;
 533   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 534   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 535   widget_class->focus_out_event = gtk_tree_view_focus_out;
 536   widget_class->drag_begin = gtk_tree_view_drag_begin;
 537   widget_class->drag_end = gtk_tree_view_drag_end;
 538   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 539   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 540   widget_class->drag_leave = gtk_tree_view_drag_leave;
 541   widget_class->drag_motion = gtk_tree_view_drag_motion;
 542   widget_class->drag_drop = gtk_tree_view_drag_drop;
 543   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 544   widget_class->focus = gtk_tree_view_focus;
 545   widget_class->grab_focus = gtk_tree_view_grab_focus;
 546   widget_class->style_set = gtk_tree_view_style_set;
 547   widget_class->grab_notify = gtk_tree_view_grab_notify;
 548   widget_class->state_changed = gtk_tree_view_state_changed;
 549
 550   /* GtkContainer signals */
 551   container_class->remove = gtk_tree_view_remove;
 552   container_class->forall = gtk_tree_view_forall;
 553   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 554
 555   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 556   class->move_cursor = gtk_tree_view_real_move_cursor;
 557   class->select_all = gtk_tree_view_real_select_all;
 558   class->unselect_all = gtk_tree_view_real_unselect_all;
 559   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 560   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 561   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 562   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 563   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 564
 565   /* Properties */
 566
 567   g_object_class_install_property (o_class,
 568                                    PROP_MODEL,
 569                                    g_param_spec_object ("model",
 570                                                         P_("TreeView Model"),
 571                                                         P_("The model for the tree view"),
 572                                                         GTK_TYPE_TREE_MODEL,
 573                                                         GTK_PARAM_READWRITE));
 574
 575   g_object_class_install_property (o_class,
 576                                    PROP_HADJUSTMENT,
 577                                    g_param_spec_object ("hadjustment",
 578                                                         P_("Horizontal Adjustment"),
 579                                                         P_("Horizontal Adjustment for the widget"),
 580                                                         GTK_TYPE_ADJUSTMENT,
 581                                                         GTK_PARAM_READWRITE));
 582
 583   g_object_class_install_property (o_class,
 584                                    PROP_VADJUSTMENT,
 585                                    g_param_spec_object ("vadjustment",
 586                                                         P_("Vertical Adjustment"),
 587                                                         P_("Vertical Adjustment for the widget"),
 588                                                         GTK_TYPE_ADJUSTMENT,
 589                                                         GTK_PARAM_READWRITE));
 590
 591   g_object_class_install_property (o_class,
 592                                    PROP_HEADERS_VISIBLE,
 593                                    g_param_spec_boolean ("headers-visible",
 594                                                          P_("Headers Visible"),
 595                                                          P_("Show the column header buttons"),
 596                                                          TRUE,
 597                                                          GTK_PARAM_READWRITE));
 598
 599   g_object_class_install_property (o_class,
 600                                    PROP_HEADERS_CLICKABLE,
 601                                    g_param_spec_boolean ("headers-clickable",
 602                                                          P_("Headers Clickable"),
 603                                                          P_("Column headers respond to click events"),
 604                                                          TRUE,
 605                                                          GTK_PARAM_READWRITE));
 606
 607   g_object_class_install_property (o_class,
 608                                    PROP_EXPANDER_COLUMN,
 609                                    g_param_spec_object ("expander-column",
 610                                                         P_("Expander Column"),
 611                                                         P_("Set the column for the expander column"),
 612                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 613                                                         GTK_PARAM_READWRITE));
 614
 615   g_object_class_install_property (o_class,
 616                                    PROP_REORDERABLE,
 617                                    g_param_spec_boolean ("reorderable",
 618                                                          P_("Reorderable"),
 619                                                          P_("View is reorderable"),
 620                                                          FALSE,
 621                                                          GTK_PARAM_READWRITE));
 622
 623   g_object_class_install_property (o_class,
 624                                    PROP_RULES_HINT,
 625                                    g_param_spec_boolean ("rules-hint",
 626                                                          P_("Rules Hint"),
 627                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 628                                                          FALSE,
 629                                                          GTK_PARAM_READWRITE));
 630
 631     g_object_class_install_property (o_class,
 632                                      PROP_ENABLE_SEARCH,
 633                                      g_param_spec_boolean ("enable-search",
 634                                                            P_("Enable Search"),
 635                                                            P_("View allows user to search through columns interactively"),
 636                                                            TRUE,
 637                                                            GTK_PARAM_READWRITE));
 638
 639     g_object_class_install_property (o_class,
 640                                      PROP_SEARCH_COLUMN,
 641                                      g_param_spec_int ("search-column",
 642                                                        P_("Search Column"),
 643                                                        P_("Model column to search through when searching through code"),
 644                                                        -1,
 645                                                        G_MAXINT,
 646                                                        -1,
 647                                                        GTK_PARAM_READWRITE));
 648
 649     /**
 650      * GtkTreeView:fixed-height-mode:
 651      *
 652      * Setting the ::fixed-height-mode property to %TRUE speeds up
 653      * #GtkTreeView by assuming that all rows have the same height.
 654      * Only enable this option if all rows are the same height.
 655      * Please see gtk_tree_view_set_fixed_height_mode() for more
 656      * information on this option.
 657      *
 658      * Since: 2.4
 659      **/
 660     g_object_class_install_property (o_class,
 661                                      PROP_FIXED_HEIGHT_MODE,
 662                                      g_param_spec_boolean ("fixed-height-mode",
 663                                                            P_("Fixed Height Mode"),
 664                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 665                                                            FALSE,
 666                                                            GTK_PARAM_READWRITE));
 667
 668     /**
 669      * GtkTreeView:hover-selection:
 670      *
 671      * Enables of disables the hover selection mode of @tree_view.
 672      * Hover selection makes the selected row follow the pointer.
 673      * Currently, this works only for the selection modes
 674      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 675      *
 676      * This mode is primarily indended for treeviews in popups, e.g.
 677      * in #GtkComboBox or #GtkEntryCompletion.
 678      *
 679      * Since: 2.6
 680      */
 681     g_object_class_install_property (o_class,
 682                                      PROP_HOVER_SELECTION,
 683                                      g_param_spec_boolean ("hover-selection",
 684                                                            P_("Hover Selection"),
 685                                                            P_("Whether the selection should follow the pointer"),
 686                                                            FALSE,
 687                                                            GTK_PARAM_READWRITE));
 688
 689     /**
 690      * GtkTreeView:hover-expand:
 691      *
 692      * Enables of disables the hover expansion mode of @tree_view.
 693      * Hover expansion makes rows expand or collaps if the pointer moves
 694      * over them.
 695      *
 696      * This mode is primarily indended for treeviews in popups, e.g.
 697      * in #GtkComboBox or #GtkEntryCompletion.
 698      *
 699      * Since: 2.6
 700      */
 701     g_object_class_install_property (o_class,
 702                                      PROP_HOVER_EXPAND,
 703                                      g_param_spec_boolean ("hover-expand",
 704                                                            P_("Hover Expand"),
 705                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 706                                                            FALSE,
 707                                                            GTK_PARAM_READWRITE));
 708
 709     /**
 710      * GtkTreeView:show-expanders:
 711      *
 712      * %TRUE if the view has expanders.
 713      *
 714      * Since: 2.12
 715      */
 716     g_object_class_install_property (o_class,
 717                                      PROP_SHOW_EXPANDERS,
 718                                      g_param_spec_boolean ("show-expanders",
 719                                                            P_("Show Expanders"),
 720                                                            P_("View has expanders"),
 721                                                            TRUE,
 722                                                            GTK_PARAM_READWRITE));
 723
 724     /**
 725      * GtkTreeView:level-indentation:
 726      *
 727      * Extra indentation for each level.
 728      *
 729      * Since: 2.12
 730      */
 731     g_object_class_install_property (o_class,
 732                                      PROP_LEVEL_INDENTATION,
 733                                      g_param_spec_int ("level-indentation",
 734                                                        P_("Level Indentation"),
 735                                                        P_("Extra indentation for each level"),
 736                                                        0,
 737                                                        G_MAXINT,
 738                                                        0,
 739                                                        GTK_PARAM_READWRITE));
 740
 741     g_object_class_install_property (o_class,
 742                                      PROP_RUBBER_BANDING,
 743                                      g_param_spec_boolean ("rubber-banding",
 744                                                            P_("Rubber Banding"),
 745                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 746                                                            FALSE,
 747                                                            GTK_PARAM_READWRITE));
 748
 749     g_object_class_install_property (o_class,
 750                                      PROP_ENABLE_GRID_LINES,
 751                                      g_param_spec_enum ("enable-grid-lines",
 752                                                         P_("Enable Grid Lines"),
 753                                                         P_("Whether grid lines should be drawn in the tree view"),
 754                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 755                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 756                                                         GTK_PARAM_READWRITE));
 757
 758     g_object_class_install_property (o_class,
 759                                      PROP_ENABLE_TREE_LINES,
 760                                      g_param_spec_boolean ("enable-tree-lines",
 761                                                            P_("Enable Tree Lines"),
 762                                                            P_("Whether tree lines should be drawn in the tree view"),
 763                                                            FALSE,
 764                                                            GTK_PARAM_READWRITE));
 765
 766     g_object_class_install_property (o_class,
 767                                      PROP_TOOLTIP_COLUMN,
 768                                      g_param_spec_int ("tooltip-column",
 769                                                        P_("Tooltip Column"),
 770                                                        P_("The column in the model containing the tooltip texts for the rows"),
 771                                                        -1,
 772                                                        G_MAXINT,
 773                                                        -1,
 774                                                        GTK_PARAM_READWRITE));
 775
 776   /* Style properties */
 777 #define _TREE_VIEW_EXPANDER_SIZE 12
 778 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 779 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 780
 781   gtk_widget_class_install_style_property (widget_class,
 782                                            g_param_spec_int ("expander-size",
 783                                                              P_("Expander Size"),
 784                                                              P_("Size of the expander arrow"),
 785                                                              0,
 786                                                              G_MAXINT,
 787                                                              _TREE_VIEW_EXPANDER_SIZE,
 788                                                              GTK_PARAM_READABLE));
 789
 790   gtk_widget_class_install_style_property (widget_class,
 791                                            g_param_spec_int ("vertical-separator",
 792                                                              P_("Vertical Separator Width"),
 793                                                              P_("Vertical space between cells.  Must be an even number"),
 794                                                              0,
 795                                                              G_MAXINT,
 796                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 797                                                              GTK_PARAM_READABLE));
 798
 799   gtk_widget_class_install_style_property (widget_class,
 800                                            g_param_spec_int ("horizontal-separator",
 801                                                              P_("Horizontal Separator Width"),
 802                                                              P_("Horizontal space between cells.  Must be an even number"),
 803                                                              0,
 804                                                              G_MAXINT,
 805                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 806                                                              GTK_PARAM_READABLE));
 807
 808   gtk_widget_class_install_style_property (widget_class,
 809                                            g_param_spec_boolean ("allow-rules",
 810                                                                  P_("Allow Rules"),
 811                                                                  P_("Allow drawing of alternating color rows"),
 812                                                                  TRUE,
 813                                                                  GTK_PARAM_READABLE));
 814
 815   gtk_widget_class_install_style_property (widget_class,
 816                                            g_param_spec_boolean ("indent-expanders",
 817                                                                  P_("Indent Expanders"),
 818                                                                  P_("Make the expanders indented"),
 819                                                                  TRUE,
 820                                                                  GTK_PARAM_READABLE));
 821
 822   gtk_widget_class_install_style_property (widget_class,
 823                                            g_param_spec_boxed ("even-row-color",
 824                                                                P_("Even Row Color"),
 825                                                                P_("Color to use for even rows"),
 826                                                                GDK_TYPE_COLOR,
 827                                                                GTK_PARAM_READABLE));
 828
 829   gtk_widget_class_install_style_property (widget_class,
 830                                            g_param_spec_boxed ("odd-row-color",
 831                                                                P_("Odd Row Color"),
 832                                                                P_("Color to use for odd rows"),
 833                                                                GDK_TYPE_COLOR,
 834                                                                GTK_PARAM_READABLE));
 835
 836   gtk_widget_class_install_style_property (widget_class,
 837                                            g_param_spec_boolean ("row-ending-details",
 838                                                                  P_("Row Ending details"),
 839                                                                  P_("Enable extended row background theming"),
 840                                                                  FALSE,
 841                                                                  GTK_PARAM_READABLE));
 842
 843   gtk_widget_class_install_style_property (widget_class,
 844                                            g_param_spec_int ("grid-line-width",
 845                                                              P_("Grid line width"),
 846                                                              P_("Width, in pixels, of the tree view grid lines"),
 847                                                              0, G_MAXINT, 1,
 848                                                              GTK_PARAM_READABLE));
 849
 850   gtk_widget_class_install_style_property (widget_class,
 851                                            g_param_spec_int ("tree-line-width",
 852                                                              P_("Tree line width"),
 853                                                              P_("Width, in pixels, of the tree view lines"),
 854                                                              0, G_MAXINT, 1,
 855                                                              GTK_PARAM_READABLE));
 856
 857   gtk_widget_class_install_style_property (widget_class,
 858                                            g_param_spec_string ("grid-line-pattern",
 859                                                                 P_("Grid line pattern"),
 860                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 861                                                                 "\1\1",
 862                                                                 GTK_PARAM_READABLE));
 863
 864   gtk_widget_class_install_style_property (widget_class,
 865                                            g_param_spec_string ("tree-line-pattern",
 866                                                                 P_("Tree line pattern"),
 867                                                                 P_("Dash pattern used to draw the tree view lines"),
 868                                                                 "\1\1",
 869                                                                 GTK_PARAM_READABLE));
 870
 871   /* Signals */
 872   widget_class->set_scroll_adjustments_signal =
 873     g_signal_new (I_("set_scroll_adjustments"),
 874                   G_TYPE_FROM_CLASS (o_class),
 875                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 876                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 877                   NULL, NULL,
 878                   _gtk_marshal_VOID__OBJECT_OBJECT,
 879                   G_TYPE_NONE, 2,
 880                   GTK_TYPE_ADJUSTMENT,
 881                   GTK_TYPE_ADJUSTMENT);
 882
 883   /**
 884    * GtkTreeView::row-activated:
 885    * @tree_view: the object on which the signal is emitted
 886    * @path: the #GtkTreePath for the activated row
 887    * @column: the #GtkTreeViewColumn in which the activation occurred
 888    *
 889    * The "row-activated" signal is emitted when the method
 890    * gtk_tree_view_row_activated() is called or the user double clicks
 891    * a treeview row. It is also emitted when a non-editable row is
 892    * selected and one of the keys: Space, Shift+Space, Return or
 893    * Enter is pressed.
 894    *
 895    * For selection handling refer to the <link linkend="TreeWidget">tree
 896    * widget conceptual overview</link> as well as #GtkTreeSelection.
 897    */
 898   tree_view_signals[ROW_ACTIVATED] =
 899     g_signal_new (I_("row_activated"),
 900                   G_TYPE_FROM_CLASS (o_class),
 901                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 902                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 903                   NULL, NULL,
 904                   _gtk_marshal_VOID__BOXED_OBJECT,
 905                   G_TYPE_NONE, 2,
 906                   GTK_TYPE_TREE_PATH,
 907                   GTK_TYPE_TREE_VIEW_COLUMN);
 908
 909   /**
 910    * GtkTreeView::test-expand-row:
 911    * @tree_view: the object on which the signal is emitted
 912    * @iter: the tree iter of the row to expand
 913    * @path: a tree path that points to the row
 914    *
 915    * The given row is about to be expanded (show its children nodes). Use this
 916    * signal if you need to control the expandability of individual rows.
 917    *
 918    * Returns: %FALSE to allow expansion, %TRUE to reject
 919    */
 920   tree_view_signals[TEST_EXPAND_ROW] =
 921     g_signal_new (I_("test-expand-row"),
 922                   G_TYPE_FROM_CLASS (o_class),
 923                   G_SIGNAL_RUN_LAST,
 924                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 925                   _gtk_boolean_handled_accumulator, NULL,
 926                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 927                   G_TYPE_BOOLEAN, 2,
 928                   GTK_TYPE_TREE_ITER,
 929                   GTK_TYPE_TREE_PATH);
 930
 931   /**
 932    * GtkTreeView::test-collapse-row:
 933    * @tree_view: the object on which the signal is emitted
 934    * @iter: the tree iter of the row to collapse
 935    * @path: a tree path that points to the row
 936    *
 937    * The given row is about to be collapsed (hide its children nodes). Use this
 938    * signal if you need to control the collapsibility of individual rows.
 939    *
 940    * Returns: %FALSE to allow collapsing, %TRUE to reject
 941    */
 942   tree_view_signals[TEST_COLLAPSE_ROW] =
 943     g_signal_new (I_("test-collapse-row"),
 944                   G_TYPE_FROM_CLASS (o_class),
 945                   G_SIGNAL_RUN_LAST,
 946                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 947                   _gtk_boolean_handled_accumulator, NULL,
 948                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 949                   G_TYPE_BOOLEAN, 2,
 950                   GTK_TYPE_TREE_ITER,
 951                   GTK_TYPE_TREE_PATH);
 952
 953   /**
 954    * GtkTreeView::row-expanded:
 955    * @tree_view: the object on which the signal is emitted
 956    * @iter: the tree iter of the expanded row
 957    * @path: a tree path that points to the row
 958    *
 959    * The given row has been expanded (child nodes are shown).
 960    */
 961   tree_view_signals[ROW_EXPANDED] =
 962     g_signal_new (I_("row-expanded"),
 963                   G_TYPE_FROM_CLASS (o_class),
 964                   G_SIGNAL_RUN_LAST,
 965                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 966                   NULL, NULL,
 967                   _gtk_marshal_VOID__BOXED_BOXED,
 968                   G_TYPE_NONE, 2,
 969                   GTK_TYPE_TREE_ITER,
 970                   GTK_TYPE_TREE_PATH);
 971
 972   /**
 973    * GtkTreeView::row-collapsed:
 974    * @tree_view: the object on which the signal is emitted
 975    * @iter: the tree iter of the collapsed row
 976    * @path: a tree path that points to the row
 977    *
 978    * The given row has been collapsed (child nodes are hidden).
 979    */
 980   tree_view_signals[ROW_COLLAPSED] =
 981     g_signal_new (I_("row-collapsed"),
 982                   G_TYPE_FROM_CLASS (o_class),
 983                   G_SIGNAL_RUN_LAST,
 984                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 985                   NULL, NULL,
 986                   _gtk_marshal_VOID__BOXED_BOXED,
 987                   G_TYPE_NONE, 2,
 988                   GTK_TYPE_TREE_ITER,
 989                   GTK_TYPE_TREE_PATH);
 990
 991   /**
 992    * GtkTreeView::columns-changed:
 993    * @tree_view: the object on which the signal is emitted
 994    *
 995    * The number of columns of the treeview has changed.
 996    */
 997   tree_view_signals[COLUMNS_CHANGED] =
 998     g_signal_new (I_("columns-changed"),
 999                   G_TYPE_FROM_CLASS (o_class),
1000                   G_SIGNAL_RUN_LAST,
1001                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
1002                   NULL, NULL,
1003                   _gtk_marshal_NONE__NONE,
1004                   G_TYPE_NONE, 0);
1005
1006   /**
1007    * GtkTreeView::cursor-changed:
1008    * @tree_view: the object on which the signal is emitted
1009    *
1010    * The position of the cursor (focused cell) has changed.
1011    */
1012   tree_view_signals[CURSOR_CHANGED] =
1013     g_signal_new (I_("cursor-changed"),
1014                   G_TYPE_FROM_CLASS (o_class),
1015                   G_SIGNAL_RUN_LAST,
1016                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1017                   NULL, NULL,
1018                   _gtk_marshal_NONE__NONE,
1019                   G_TYPE_NONE, 0);
1020
1021   tree_view_signals[MOVE_CURSOR] =
1022     g_signal_new (I_("move_cursor"),
1023                   G_TYPE_FROM_CLASS (object_class),
1024                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1025                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1026                   NULL, NULL,
1027                   _gtk_marshal_BOOLEAN__ENUM_INT,
1028                   G_TYPE_BOOLEAN, 2,
1029                   GTK_TYPE_MOVEMENT_STEP,
1030                   G_TYPE_INT);
1031
1032   tree_view_signals[SELECT_ALL] =
1033     g_signal_new (I_("select_all"),
1034                   G_TYPE_FROM_CLASS (object_class),
1035                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1036                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1037                   NULL, NULL,
1038                   _gtk_marshal_BOOLEAN__NONE,
1039                   G_TYPE_BOOLEAN, 0);
1040
1041   tree_view_signals[UNSELECT_ALL] =
1042     g_signal_new (I_("unselect_all"),
1043                   G_TYPE_FROM_CLASS (object_class),
1044                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1045                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1046                   NULL, NULL,
1047                   _gtk_marshal_BOOLEAN__NONE,
1048                   G_TYPE_BOOLEAN, 0);
1049
1050   tree_view_signals[SELECT_CURSOR_ROW] =
1051     g_signal_new (I_("select_cursor_row"),
1052                   G_TYPE_FROM_CLASS (object_class),
1053                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1054                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1055                   NULL, NULL,
1056                   _gtk_marshal_BOOLEAN__BOOLEAN,
1057                   G_TYPE_BOOLEAN, 1,
1058                   G_TYPE_BOOLEAN);
1059
1060   tree_view_signals[TOGGLE_CURSOR_ROW] =
1061     g_signal_new (I_("toggle_cursor_row"),
1062                   G_TYPE_FROM_CLASS (object_class),
1063                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1064                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1065                   NULL, NULL,
1066                   _gtk_marshal_BOOLEAN__NONE,
1067                   G_TYPE_BOOLEAN, 0);
1068
1069   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1070     g_signal_new (I_("expand_collapse_cursor_row"),
1071                   G_TYPE_FROM_CLASS (object_class),
1072                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1073                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1074                   NULL, NULL,
1075                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1076                   G_TYPE_BOOLEAN, 3,
1077                   G_TYPE_BOOLEAN,
1078                   G_TYPE_BOOLEAN,
1079                   G_TYPE_BOOLEAN);
1080
1081   tree_view_signals[SELECT_CURSOR_PARENT] =
1082     g_signal_new (I_("select_cursor_parent"),
1083                   G_TYPE_FROM_CLASS (object_class),
1084                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1085                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1086                   NULL, NULL,
1087                   _gtk_marshal_BOOLEAN__NONE,
1088                   G_TYPE_BOOLEAN, 0);
1089
1090   tree_view_signals[START_INTERACTIVE_SEARCH] =
1091     g_signal_new (I_("start_interactive_search"),
1092                   G_TYPE_FROM_CLASS (object_class),
1093                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1094                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1095                   NULL, NULL,
1096                   _gtk_marshal_BOOLEAN__NONE,
1097                   G_TYPE_BOOLEAN, 0);
1098
1099   /* Key bindings */
1100   gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0, TRUE,
1101                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1102   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0, TRUE,
1103                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1104
1105   gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0, TRUE,
1106                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1107   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0, TRUE,
1108                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1109
1110   gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, FALSE,
1111                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1112
1113   gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, FALSE,
1114                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1115
1116   gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0, TRUE,
1117                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1118   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0, TRUE,
1119                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1120
1121   gtk_tree_view_add_move_binding (binding_set, GDK_End, 0, TRUE,
1122                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1123   gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0, TRUE,
1124                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1125
1126   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0, TRUE,
1127                                   GTK_MOVEMENT_PAGES, -1);
1128   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, TRUE,
1129                                   GTK_MOVEMENT_PAGES, -1);
1130
1131   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0, TRUE,
1132                                   GTK_MOVEMENT_PAGES, 1);
1133   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, TRUE,
1134                                   GTK_MOVEMENT_PAGES, 1);
1135
1136
1137   gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move_cursor", 2,
1138                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1139                                 G_TYPE_INT, 1);
1140
1141   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move_cursor", 2,
1142                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1143                                 G_TYPE_INT, -1);
1144
1145   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move_cursor", 2,
1146                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1147                                 G_TYPE_INT, 1);
1148
1149   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move_cursor", 2,
1150                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1151                                 G_TYPE_INT, -1);
1152
1153   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1154                                 "move_cursor", 2,
1155                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1156                                 G_TYPE_INT, 1);
1157
1158   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1159                                 "move_cursor", 2,
1160                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1161                                 G_TYPE_INT, -1);
1162
1163   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1164                                 "move_cursor", 2,
1165                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1166                                 G_TYPE_INT, 1);
1167
1168   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1169                                 "move_cursor", 2,
1170                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1171                                 G_TYPE_INT, -1);
1172
1173   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_row", 0);
1174   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK, "toggle_cursor_row", 0);
1175
1176   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
1177   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select_all", 0);
1178
1179   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
1180   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect_all", 0);
1181
1182   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select_cursor_row", 1,
1183                                 G_TYPE_BOOLEAN, TRUE);
1184   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_SHIFT_MASK, "select_cursor_row", 1,
1185                                 G_TYPE_BOOLEAN, TRUE);
1186
1187   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_row", 1,
1188                                 G_TYPE_BOOLEAN, TRUE);
1189   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "select_cursor_row", 1,
1190                                 G_TYPE_BOOLEAN, TRUE);
1191   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select_cursor_row", 1,
1192                                 G_TYPE_BOOLEAN, TRUE);
1193   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select_cursor_row", 1,
1194                                 G_TYPE_BOOLEAN, TRUE);
1195   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select_cursor_row", 1,
1196                                 G_TYPE_BOOLEAN, TRUE);
1197
1198   /* expand and collapse rows */
1199   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand_collapse_cursor_row", 3,
1200                                 G_TYPE_BOOLEAN, TRUE,
1201                                 G_TYPE_BOOLEAN, TRUE,
1202                                 G_TYPE_BOOLEAN, FALSE);
1203
1204   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1205                                 "expand_collapse_cursor_row", 3,
1206                                 G_TYPE_BOOLEAN, TRUE,
1207                                 G_TYPE_BOOLEAN, TRUE,
1208                                 G_TYPE_BOOLEAN, TRUE);
1209   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1210                                 "expand_collapse_cursor_row", 3,
1211                                 G_TYPE_BOOLEAN, TRUE,
1212                                 G_TYPE_BOOLEAN, TRUE,
1213                                 G_TYPE_BOOLEAN, TRUE);
1214
1215   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1216                                 "expand_collapse_cursor_row", 3,
1217                                 G_TYPE_BOOLEAN, TRUE,
1218                                 G_TYPE_BOOLEAN, FALSE,
1219                                 G_TYPE_BOOLEAN, FALSE);
1220   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1221                                 "expand_collapse_cursor_row", 3,
1222                                 G_TYPE_BOOLEAN, TRUE,
1223                                 G_TYPE_BOOLEAN, FALSE,
1224                                 G_TYPE_BOOLEAN, FALSE);
1225
1226   /* Not doable on US keyboards */
1227   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1228                                 G_TYPE_BOOLEAN, TRUE,
1229                                 G_TYPE_BOOLEAN, TRUE,
1230                                 G_TYPE_BOOLEAN, TRUE);
1231   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand_collapse_cursor_row", 3,
1232                                 G_TYPE_BOOLEAN, TRUE,
1233                                 G_TYPE_BOOLEAN, TRUE,
1234                                 G_TYPE_BOOLEAN, FALSE);
1235   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1236                                 G_TYPE_BOOLEAN, TRUE,
1237                                 G_TYPE_BOOLEAN, TRUE,
1238                                 G_TYPE_BOOLEAN, TRUE);
1239   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1240                                 G_TYPE_BOOLEAN, TRUE,
1241                                 G_TYPE_BOOLEAN, TRUE,
1242                                 G_TYPE_BOOLEAN, TRUE);
1243   gtk_binding_entry_add_signal (binding_set, GDK_Right, 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, GDK_SHIFT_MASK,
1249                                 "expand_collapse_cursor_row", 3,
1250                                 G_TYPE_BOOLEAN, FALSE,
1251                                 G_TYPE_BOOLEAN, TRUE,
1252                                 G_TYPE_BOOLEAN, TRUE);
1253   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1254                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1255                                 "expand_collapse_cursor_row", 3,
1256                                 G_TYPE_BOOLEAN, FALSE,
1257                                 G_TYPE_BOOLEAN, TRUE,
1258                                 G_TYPE_BOOLEAN, TRUE);
1259   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1260                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1261                                 "expand_collapse_cursor_row", 3,
1262                                 G_TYPE_BOOLEAN, FALSE,
1263                                 G_TYPE_BOOLEAN, TRUE,
1264                                 G_TYPE_BOOLEAN, TRUE);
1265
1266   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand_collapse_cursor_row", 3,
1267                                 G_TYPE_BOOLEAN, TRUE,
1268                                 G_TYPE_BOOLEAN, FALSE,
1269                                 G_TYPE_BOOLEAN, FALSE);
1270   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1271                                 G_TYPE_BOOLEAN, TRUE,
1272                                 G_TYPE_BOOLEAN, FALSE,
1273                                 G_TYPE_BOOLEAN, TRUE);
1274   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand_collapse_cursor_row", 3,
1275                                 G_TYPE_BOOLEAN, TRUE,
1276                                 G_TYPE_BOOLEAN, FALSE,
1277                                 G_TYPE_BOOLEAN, FALSE);
1278   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
1279                                 G_TYPE_BOOLEAN, TRUE,
1280                                 G_TYPE_BOOLEAN, FALSE,
1281                                 G_TYPE_BOOLEAN, TRUE);
1282   gtk_binding_entry_add_signal (binding_set, GDK_Left, 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, GDK_SHIFT_MASK,
1288                                 "expand_collapse_cursor_row", 3,
1289                                 G_TYPE_BOOLEAN, FALSE,
1290                                 G_TYPE_BOOLEAN, FALSE,
1291                                 G_TYPE_BOOLEAN, TRUE);
1292   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1293                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1294                                 "expand_collapse_cursor_row", 3,
1295                                 G_TYPE_BOOLEAN, FALSE,
1296                                 G_TYPE_BOOLEAN, FALSE,
1297                                 G_TYPE_BOOLEAN, TRUE);
1298   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
1299                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1300                                 "expand_collapse_cursor_row", 3,
1301                                 G_TYPE_BOOLEAN, FALSE,
1302                                 G_TYPE_BOOLEAN, FALSE,
1303                                 G_TYPE_BOOLEAN, TRUE);
1304
1305   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select_cursor_parent", 0);
1306   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select_cursor_parent", 0);
1307
1308   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start_interactive_search", 0);
1309
1310   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start_interactive_search", 0);
1311
1312   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1313 }
1314
1315 static void
1316 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1317 {
1318   iface->add_child = gtk_tree_view_buildable_add_child;
1319 }
1320
1321 static void
1322 gtk_tree_view_init (GtkTreeView *tree_view)
1323 {
1324   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1325
1326   GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
1327
1328   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1329
1330   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1331                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1332                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1333
1334   /* We need some padding */
1335   tree_view->priv->dy = 0;
1336   tree_view->priv->cursor_offset = 0;
1337   tree_view->priv->n_columns = 0;
1338   tree_view->priv->header_height = 1;
1339   tree_view->priv->x_drag = 0;
1340   tree_view->priv->drag_pos = -1;
1341   tree_view->priv->header_has_focus = FALSE;
1342   tree_view->priv->pressed_button = -1;
1343   tree_view->priv->press_start_x = -1;
1344   tree_view->priv->press_start_y = -1;
1345   tree_view->priv->reorderable = FALSE;
1346   tree_view->priv->presize_handler_timer = 0;
1347   tree_view->priv->scroll_sync_timer = 0;
1348   tree_view->priv->fixed_height = -1;
1349   tree_view->priv->fixed_height_mode = FALSE;
1350   tree_view->priv->fixed_height_check = 0;
1351   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1352   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1353   tree_view->priv->enable_search = TRUE;
1354   tree_view->priv->search_column = -1;
1355   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1356   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1357   tree_view->priv->search_custom_entry_set = FALSE;
1358   tree_view->priv->typeselect_flush_timeout = 0;
1359   tree_view->priv->init_hadjust_value = TRUE;
1360   tree_view->priv->width = 0;
1361
1362   tree_view->priv->hover_selection = FALSE;
1363   tree_view->priv->hover_expand = FALSE;
1364
1365   tree_view->priv->level_indentation = 0;
1366
1367   tree_view->priv->rubber_banding_enable = FALSE;
1368
1369   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1370   tree_view->priv->tree_lines_enabled = FALSE;
1371
1372   tree_view->priv->tooltip_column = -1;
1373 }
1374
1375 \f
1376
1377 /* GObject Methods
1378  */
1379
1380 static void
1381 gtk_tree_view_set_property (GObject         *object,
1382                             guint            prop_id,
1383                             const GValue    *value,
1384                             GParamSpec      *pspec)
1385 {
1386   GtkTreeView *tree_view;
1387
1388   tree_view = GTK_TREE_VIEW (object);
1389
1390   switch (prop_id)
1391     {
1392     case PROP_MODEL:
1393       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1394       break;
1395     case PROP_HADJUSTMENT:
1396       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1397       break;
1398     case PROP_VADJUSTMENT:
1399       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1400       break;
1401     case PROP_HEADERS_VISIBLE:
1402       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1403       break;
1404     case PROP_HEADERS_CLICKABLE:
1405       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1406       break;
1407     case PROP_EXPANDER_COLUMN:
1408       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1409       break;
1410     case PROP_REORDERABLE:
1411       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1412       break;
1413     case PROP_RULES_HINT:
1414       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1415       break;
1416     case PROP_ENABLE_SEARCH:
1417       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1418       break;
1419     case PROP_SEARCH_COLUMN:
1420       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1421       break;
1422     case PROP_FIXED_HEIGHT_MODE:
1423       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1424       break;
1425     case PROP_HOVER_SELECTION:
1426       tree_view->priv->hover_selection = g_value_get_boolean (value);
1427       break;
1428     case PROP_HOVER_EXPAND:
1429       tree_view->priv->hover_expand = g_value_get_boolean (value);
1430       break;
1431     case PROP_SHOW_EXPANDERS:
1432       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1433       break;
1434     case PROP_LEVEL_INDENTATION:
1435       tree_view->priv->level_indentation = g_value_get_int (value);
1436       break;
1437     case PROP_RUBBER_BANDING:
1438       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1439       break;
1440     case PROP_ENABLE_GRID_LINES:
1441       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1442       break;
1443     case PROP_ENABLE_TREE_LINES:
1444       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1445       break;
1446     case PROP_TOOLTIP_COLUMN:
1447       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1448       break;
1449     default:
1450       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1451       break;
1452     }
1453 }
1454
1455 static void
1456 gtk_tree_view_get_property (GObject    *object,
1457                             guint       prop_id,
1458                             GValue     *value,
1459                             GParamSpec *pspec)
1460 {
1461   GtkTreeView *tree_view;
1462
1463   tree_view = GTK_TREE_VIEW (object);
1464
1465   switch (prop_id)
1466     {
1467     case PROP_MODEL:
1468       g_value_set_object (value, tree_view->priv->model);
1469       break;
1470     case PROP_HADJUSTMENT:
1471       g_value_set_object (value, tree_view->priv->hadjustment);
1472       break;
1473     case PROP_VADJUSTMENT:
1474       g_value_set_object (value, tree_view->priv->vadjustment);
1475       break;
1476     case PROP_HEADERS_VISIBLE:
1477       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1478       break;
1479     case PROP_HEADERS_CLICKABLE:
1480       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1481       break;
1482     case PROP_EXPANDER_COLUMN:
1483       g_value_set_object (value, tree_view->priv->expander_column);
1484       break;
1485     case PROP_REORDERABLE:
1486       g_value_set_boolean (value, tree_view->priv->reorderable);
1487       break;
1488     case PROP_RULES_HINT:
1489       g_value_set_boolean (value, tree_view->priv->has_rules);
1490       break;
1491     case PROP_ENABLE_SEARCH:
1492       g_value_set_boolean (value, tree_view->priv->enable_search);
1493       break;
1494     case PROP_SEARCH_COLUMN:
1495       g_value_set_int (value, tree_view->priv->search_column);
1496       break;
1497     case PROP_FIXED_HEIGHT_MODE:
1498       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1499       break;
1500     case PROP_HOVER_SELECTION:
1501       g_value_set_boolean (value, tree_view->priv->hover_selection);
1502       break;
1503     case PROP_HOVER_EXPAND:
1504       g_value_set_boolean (value, tree_view->priv->hover_expand);
1505       break;
1506     case PROP_SHOW_EXPANDERS:
1507       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1508       break;
1509     case PROP_LEVEL_INDENTATION:
1510       g_value_set_int (value, tree_view->priv->level_indentation);
1511       break;
1512     case PROP_RUBBER_BANDING:
1513       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1514       break;
1515     case PROP_ENABLE_GRID_LINES:
1516       g_value_set_enum (value, tree_view->priv->grid_lines);
1517       break;
1518     case PROP_ENABLE_TREE_LINES:
1519       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1520       break;
1521     case PROP_TOOLTIP_COLUMN:
1522       g_value_set_int (value, tree_view->priv->tooltip_column);
1523       break;
1524     default:
1525       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1526       break;
1527     }
1528 }
1529
1530 static void
1531 gtk_tree_view_finalize (GObject *object)
1532 {
1533   (* G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize) (object);
1534 }
1535
1536 \f
1537
1538 static void
1539 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1540                                    GtkBuilder  *builder,
1541                                    GObject     *child,
1542                                    const gchar *type)
1543 {
1544   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1545 }
1546
1547 /* GtkObject Methods
1548  */
1549
1550 static void
1551 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1552 {
1553   _gtk_rbtree_free (tree_view->priv->tree);
1554
1555   tree_view->priv->tree = NULL;
1556   tree_view->priv->button_pressed_node = NULL;
1557   tree_view->priv->button_pressed_tree = NULL;
1558   tree_view->priv->prelight_tree = NULL;
1559   tree_view->priv->prelight_node = NULL;
1560   tree_view->priv->expanded_collapsed_node = NULL;
1561   tree_view->priv->expanded_collapsed_tree = NULL;
1562 }
1563
1564 static void
1565 gtk_tree_view_destroy (GtkObject *object)
1566 {
1567   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1568   GList *list;
1569
1570   gtk_tree_view_stop_editing (tree_view, TRUE);
1571
1572   if (tree_view->priv->columns != NULL)
1573     {
1574       list = tree_view->priv->columns;
1575       while (list)
1576         {
1577           GtkTreeViewColumn *column;
1578           column = GTK_TREE_VIEW_COLUMN (list->data);
1579           list = list->next;
1580           gtk_tree_view_remove_column (tree_view, column);
1581         }
1582       tree_view->priv->columns = NULL;
1583     }
1584
1585   if (tree_view->priv->tree != NULL)
1586     {
1587       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1588
1589       gtk_tree_view_free_rbtree (tree_view);
1590     }
1591
1592   if (tree_view->priv->selection != NULL)
1593     {
1594       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1595       g_object_unref (tree_view->priv->selection);
1596       tree_view->priv->selection = NULL;
1597     }
1598
1599   if (tree_view->priv->scroll_to_path != NULL)
1600     {
1601       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1602       tree_view->priv->scroll_to_path = NULL;
1603     }
1604
1605   if (tree_view->priv->drag_dest_row != NULL)
1606     {
1607       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1608       tree_view->priv->drag_dest_row = NULL;
1609     }
1610
1611   if (tree_view->priv->last_button_press != NULL)
1612     {
1613       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
1614       tree_view->priv->last_button_press = NULL;
1615     }
1616
1617   if (tree_view->priv->last_button_press_2 != NULL)
1618     {
1619       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
1620       tree_view->priv->last_button_press_2 = NULL;
1621     }
1622
1623   if (tree_view->priv->top_row != NULL)
1624     {
1625       gtk_tree_row_reference_free (tree_view->priv->top_row);
1626       tree_view->priv->top_row = NULL;
1627     }
1628
1629   if (tree_view->priv->column_drop_func_data &&
1630       tree_view->priv->column_drop_func_data_destroy)
1631     {
1632       (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
1633       tree_view->priv->column_drop_func_data = NULL;
1634     }
1635
1636   if (tree_view->priv->destroy_count_destroy &&
1637       tree_view->priv->destroy_count_data)
1638     {
1639       (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
1640       tree_view->priv->destroy_count_data = NULL;
1641     }
1642
1643   gtk_tree_row_reference_free (tree_view->priv->cursor);
1644   tree_view->priv->cursor = NULL;
1645
1646   gtk_tree_row_reference_free (tree_view->priv->anchor);
1647   tree_view->priv->anchor = NULL;
1648
1649   /* destroy interactive search dialog */
1650   if (tree_view->priv->search_window)
1651     {
1652       gtk_widget_destroy (tree_view->priv->search_window);
1653       tree_view->priv->search_window = NULL;
1654       tree_view->priv->search_entry = NULL;
1655       if (tree_view->priv->typeselect_flush_timeout)
1656         {
1657           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1658           tree_view->priv->typeselect_flush_timeout = 0;
1659         }
1660     }
1661
1662   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1663     {
1664       (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
1665       tree_view->priv->search_user_data = NULL;
1666     }
1667
1668   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1669     {
1670       (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
1671       tree_view->priv->search_position_user_data = NULL;
1672     }
1673
1674   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1675     {
1676       (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
1677       tree_view->priv->row_separator_data = NULL;
1678     }
1679
1680   gtk_tree_view_set_model (tree_view, NULL);
1681
1682   if (tree_view->priv->hadjustment)
1683     {
1684       g_object_unref (tree_view->priv->hadjustment);
1685       tree_view->priv->hadjustment = NULL;
1686     }
1687   if (tree_view->priv->vadjustment)
1688     {
1689       g_object_unref (tree_view->priv->vadjustment);
1690       tree_view->priv->vadjustment = NULL;
1691     }
1692
1693   if (GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy)
1694     (* GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy) (object);
1695 }
1696
1697 \f
1698
1699 /* GtkWidget Methods
1700  */
1701
1702 /* GtkWidget::map helper */
1703 static void
1704 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1705 {
1706   GList *list;
1707
1708   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1709
1710   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1711     {
1712       GtkTreeViewColumn *column;
1713
1714       for (list = tree_view->priv->columns; list; list = list->next)
1715         {
1716           column = list->data;
1717           if (GTK_WIDGET_VISIBLE (column->button) &&
1718               !GTK_WIDGET_MAPPED (column->button))
1719             gtk_widget_map (column->button);
1720         }
1721       for (list = tree_view->priv->columns; list; list = list->next)
1722         {
1723           column = list->data;
1724           if (column->visible == FALSE)
1725             continue;
1726           if (column->resizable)
1727             {
1728               gdk_window_raise (column->window);
1729               gdk_window_show (column->window);
1730             }
1731           else
1732             gdk_window_hide (column->window);
1733         }
1734       gdk_window_show (tree_view->priv->header_window);
1735     }
1736 }
1737
1738 static void
1739 gtk_tree_view_map (GtkWidget *widget)
1740 {
1741   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1742   GList *tmp_list;
1743
1744   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1745
1746   tmp_list = tree_view->priv->children;
1747   while (tmp_list)
1748     {
1749       GtkTreeViewChild *child = tmp_list->data;
1750       tmp_list = tmp_list->next;
1751
1752       if (GTK_WIDGET_VISIBLE (child->widget))
1753         {
1754           if (!GTK_WIDGET_MAPPED (child->widget))
1755             gtk_widget_map (child->widget);
1756         }
1757     }
1758   gdk_window_show (tree_view->priv->bin_window);
1759
1760   gtk_tree_view_map_buttons (tree_view);
1761
1762   gdk_window_show (widget->window);
1763 }
1764
1765 static void
1766 gtk_tree_view_realize (GtkWidget *widget)
1767 {
1768   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1769   GList *tmp_list;
1770   GdkWindowAttr attributes;
1771   gint attributes_mask;
1772
1773   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1774
1775   /* Make the main, clipping window */
1776   attributes.window_type = GDK_WINDOW_CHILD;
1777   attributes.x = widget->allocation.x;
1778   attributes.y = widget->allocation.y;
1779   attributes.width = widget->allocation.width;
1780   attributes.height = widget->allocation.height;
1781   attributes.wclass = GDK_INPUT_OUTPUT;
1782   attributes.visual = gtk_widget_get_visual (widget);
1783   attributes.colormap = gtk_widget_get_colormap (widget);
1784   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1785
1786   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1787
1788   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1789                                    &attributes, attributes_mask);
1790   gdk_window_set_user_data (widget->window, widget);
1791
1792   /* Make the window for the tree */
1793   attributes.x = 0;
1794   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1795   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1796   attributes.height = widget->allocation.height;
1797   attributes.event_mask = GDK_EXPOSURE_MASK |
1798     GDK_SCROLL_MASK |
1799     GDK_POINTER_MOTION_MASK |
1800     GDK_ENTER_NOTIFY_MASK |
1801     GDK_LEAVE_NOTIFY_MASK |
1802     GDK_BUTTON_PRESS_MASK |
1803     GDK_BUTTON_RELEASE_MASK |
1804     gtk_widget_get_events (widget);
1805
1806   tree_view->priv->bin_window = gdk_window_new (widget->window,
1807                                                 &attributes, attributes_mask);
1808   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1809
1810   /* Make the column header window */
1811   attributes.x = 0;
1812   attributes.y = 0;
1813   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1814   attributes.height = tree_view->priv->header_height;
1815   attributes.event_mask = (GDK_EXPOSURE_MASK |
1816                            GDK_SCROLL_MASK |
1817                            GDK_BUTTON_PRESS_MASK |
1818                            GDK_BUTTON_RELEASE_MASK |
1819                            GDK_KEY_PRESS_MASK |
1820                            GDK_KEY_RELEASE_MASK) |
1821     gtk_widget_get_events (widget);
1822
1823   tree_view->priv->header_window = gdk_window_new (widget->window,
1824                                                    &attributes, attributes_mask);
1825   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1826
1827   /* Add them all up. */
1828   widget->style = gtk_style_attach (widget->style, widget->window);
1829   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1830   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1831   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1832
1833   tmp_list = tree_view->priv->children;
1834   while (tmp_list)
1835     {
1836       GtkTreeViewChild *child = tmp_list->data;
1837       tmp_list = tmp_list->next;
1838
1839       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1840     }
1841
1842   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1843     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1844
1845   /* Need to call those here, since they create GCs */
1846   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1847   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1848
1849   install_presize_handler (tree_view);
1850 }
1851
1852 static void
1853 gtk_tree_view_unrealize (GtkWidget *widget)
1854 {
1855   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1856   GtkTreeViewPrivate *priv = tree_view->priv;
1857   GList *list;
1858
1859   if (priv->scroll_timeout != 0)
1860     {
1861       g_source_remove (priv->scroll_timeout);
1862       priv->scroll_timeout = 0;
1863     }
1864
1865   if (priv->auto_expand_timeout != 0)
1866     {
1867       g_source_remove (priv->auto_expand_timeout);
1868       priv->auto_expand_timeout = 0;
1869     }
1870
1871   if (priv->open_dest_timeout != 0)
1872     {
1873       g_source_remove (priv->open_dest_timeout);
1874       priv->open_dest_timeout = 0;
1875     }
1876
1877   remove_expand_collapse_timeout (tree_view);
1878
1879   if (priv->presize_handler_timer != 0)
1880     {
1881       g_source_remove (priv->presize_handler_timer);
1882       priv->presize_handler_timer = 0;
1883     }
1884
1885   if (priv->validate_rows_timer != 0)
1886     {
1887       g_source_remove (priv->validate_rows_timer);
1888       priv->validate_rows_timer = 0;
1889     }
1890
1891   if (priv->scroll_sync_timer != 0)
1892     {
1893       g_source_remove (priv->scroll_sync_timer);
1894       priv->scroll_sync_timer = 0;
1895     }
1896
1897   if (priv->typeselect_flush_timeout)
1898     {
1899       g_source_remove (priv->typeselect_flush_timeout);
1900       priv->typeselect_flush_timeout = 0;
1901     }
1902
1903   for (list = priv->columns; list; list = list->next)
1904     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1905
1906   gdk_window_set_user_data (priv->bin_window, NULL);
1907   gdk_window_destroy (priv->bin_window);
1908   priv->bin_window = NULL;
1909
1910   gdk_window_set_user_data (priv->header_window, NULL);
1911   gdk_window_destroy (priv->header_window);
1912   priv->header_window = NULL;
1913
1914   if (priv->drag_window)
1915     {
1916       gdk_window_set_user_data (priv->drag_window, NULL);
1917       gdk_window_destroy (priv->drag_window);
1918       priv->drag_window = NULL;
1919     }
1920
1921   if (priv->drag_highlight_window)
1922     {
1923       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1924       gdk_window_destroy (priv->drag_highlight_window);
1925       priv->drag_highlight_window = NULL;
1926     }
1927
1928   if (priv->tree_line_gc)
1929     {
1930       g_object_unref (priv->tree_line_gc);
1931       priv->tree_line_gc = NULL;
1932     }
1933
1934   if (priv->grid_line_gc)
1935     {
1936       g_object_unref (priv->grid_line_gc);
1937       priv->grid_line_gc = NULL;
1938     }
1939
1940   /* GtkWidget::unrealize destroys children and widget->window */
1941   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize)
1942     (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize) (widget);
1943 }
1944
1945 /* GtkWidget::size_request helper */
1946 static void
1947 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1948 {
1949   GList *list;
1950
1951   tree_view->priv->header_height = 0;
1952
1953   if (tree_view->priv->model)
1954     {
1955       for (list = tree_view->priv->columns; list; list = list->next)
1956         {
1957           GtkRequisition requisition;
1958           GtkTreeViewColumn *column = list->data;
1959
1960           if (column->button == NULL)
1961             continue;
1962
1963           column = list->data;
1964
1965           gtk_widget_size_request (column->button, &requisition);
1966           column->button_request = requisition.width;
1967           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1968         }
1969     }
1970 }
1971
1972
1973 /* Called only by ::size_request */
1974 static void
1975 gtk_tree_view_update_size (GtkTreeView *tree_view)
1976 {
1977   GList *list;
1978   GtkTreeViewColumn *column;
1979   gint i;
1980
1981   if (tree_view->priv->model == NULL)
1982     {
1983       tree_view->priv->width = 0;
1984       tree_view->priv->prev_width = 0;
1985       tree_view->priv->height = 0;
1986       return;
1987     }
1988
1989   tree_view->priv->prev_width = tree_view->priv->width;
1990   tree_view->priv->width = 0;
1991   /* keep this in sync with size_allocate below */
1992   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1993     {
1994       gint real_requested_width = 0;
1995       column = list->data;
1996       if (!column->visible)
1997         continue;
1998
1999       if (column->use_resized_width)
2000         {
2001           real_requested_width = column->resized_width;
2002         }
2003       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2004         {
2005           real_requested_width = column->fixed_width;
2006         }
2007       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2008         {
2009           real_requested_width = MAX (column->requested_width, column->button_request);
2010         }
2011       else
2012         {
2013           real_requested_width = column->requested_width;
2014         }
2015
2016       if (column->min_width != -1)
2017         real_requested_width = MAX (real_requested_width, column->min_width);
2018       if (column->max_width != -1)
2019         real_requested_width = MIN (real_requested_width, column->max_width);
2020
2021       tree_view->priv->width += real_requested_width;
2022     }
2023
2024   if (tree_view->priv->tree == NULL)
2025     tree_view->priv->height = 0;
2026   else
2027     tree_view->priv->height = tree_view->priv->tree->root->offset;
2028 }
2029
2030 static void
2031 gtk_tree_view_size_request (GtkWidget      *widget,
2032                             GtkRequisition *requisition)
2033 {
2034   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2035   GList *tmp_list;
2036
2037   /* we validate GTK_TREE_VIEW_NUM_ROWS_PER_IDLE rows initially just to make
2038    * sure we have some size. In practice, with a lot of static lists, this
2039    * should get a good width.
2040    */
2041   do_validate_rows (tree_view, FALSE);
2042   gtk_tree_view_size_request_columns (tree_view);
2043   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2044
2045   requisition->width = tree_view->priv->width;
2046   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2047
2048   tmp_list = tree_view->priv->children;
2049
2050   while (tmp_list)
2051     {
2052       GtkTreeViewChild *child = tmp_list->data;
2053       GtkRequisition child_requisition;
2054
2055       tmp_list = tmp_list->next;
2056
2057       if (GTK_WIDGET_VISIBLE (child->widget))
2058         gtk_widget_size_request (child->widget, &child_requisition);
2059     }
2060 }
2061
2062
2063 static void
2064 invalidate_column (GtkTreeView       *tree_view,
2065                    GtkTreeViewColumn *column)
2066 {
2067   gint column_offset = 0;
2068   GList *list;
2069   GtkWidget *widget = GTK_WIDGET (tree_view);
2070   gboolean rtl;
2071
2072   if (!GTK_WIDGET_REALIZED (widget))
2073     return;
2074
2075   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2076   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2077        list;
2078        list = (rtl ? list->prev : list->next))
2079     {
2080       GtkTreeViewColumn *tmpcolumn = list->data;
2081       if (tmpcolumn == column)
2082         {
2083           GdkRectangle invalid_rect;
2084
2085           invalid_rect.x = column_offset;
2086           invalid_rect.y = 0;
2087           invalid_rect.width = column->width;
2088           invalid_rect.height = widget->allocation.height;
2089
2090           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2091           break;
2092         }
2093
2094       column_offset += tmpcolumn->width;
2095     }
2096 }
2097
2098 static void
2099 invalidate_last_column (GtkTreeView *tree_view)
2100 {
2101   GList *last_column;
2102   gboolean rtl;
2103
2104   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2105
2106   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2107        last_column;
2108        last_column = (rtl ? last_column->next : last_column->prev))
2109     {
2110       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2111         {
2112           invalidate_column (tree_view, last_column->data);
2113           return;
2114         }
2115     }
2116 }
2117
2118 static gint
2119 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2120                                                     GtkTreeViewColumn *column)
2121 {
2122   gint real_requested_width;
2123
2124   if (column->use_resized_width)
2125     {
2126       real_requested_width = column->resized_width;
2127     }
2128   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2129     {
2130       real_requested_width = column->fixed_width;
2131     }
2132   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2133     {
2134       real_requested_width = MAX (column->requested_width, column->button_request);
2135     }
2136   else
2137     {
2138       real_requested_width = column->requested_width;
2139       if (real_requested_width < 0)
2140         real_requested_width = 0;
2141     }
2142
2143   if (column->min_width != -1)
2144     real_requested_width = MAX (real_requested_width, column->min_width);
2145   if (column->max_width != -1)
2146     real_requested_width = MIN (real_requested_width, column->max_width);
2147
2148   return real_requested_width;
2149 }
2150
2151 /* GtkWidget::size_allocate helper */
2152 static void
2153 gtk_tree_view_size_allocate_columns (GtkWidget *widget)
2154 {
2155   GtkTreeView *tree_view;
2156   GList *list, *first_column, *last_column;
2157   GtkTreeViewColumn *column;
2158   GtkAllocation allocation;
2159   gint width = 0;
2160   gint extra, extra_per_column;
2161   gint full_requested_width = 0;
2162   gint number_of_expand_columns = 0;
2163   gboolean column_changed = FALSE;
2164   gboolean rtl;
2165
2166   tree_view = GTK_TREE_VIEW (widget);
2167
2168   for (last_column = g_list_last (tree_view->priv->columns);
2169        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2170        last_column = last_column->prev)
2171     ;
2172   if (last_column == NULL)
2173     return;
2174
2175   for (first_column = g_list_first (tree_view->priv->columns);
2176        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2177        first_column = first_column->next)
2178     ;
2179
2180   allocation.y = 0;
2181   allocation.height = tree_view->priv->header_height;
2182
2183   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2184
2185   /* find out how many extra space and expandable columns we have */
2186   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2187     {
2188       column = (GtkTreeViewColumn *)list->data;
2189
2190       if (!column->visible)
2191         continue;
2192
2193       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2194
2195       if (column->expand)
2196         number_of_expand_columns++;
2197     }
2198
2199   extra = MAX (widget->allocation.width - full_requested_width, 0);
2200   if (number_of_expand_columns > 0)
2201     extra_per_column = extra/number_of_expand_columns;
2202   else
2203     extra_per_column = 0;
2204
2205   for (list = (rtl ? last_column : first_column);
2206        list != (rtl ? first_column->prev : last_column->next);
2207        list = (rtl ? list->prev : list->next))
2208     {
2209       gint real_requested_width = 0;
2210       gint old_width;
2211
2212       column = list->data;
2213       old_width = column->width;
2214
2215       if (!column->visible)
2216         continue;
2217
2218       /* We need to handle the dragged button specially.
2219        */
2220       if (column == tree_view->priv->drag_column)
2221         {
2222           GtkAllocation drag_allocation;
2223           gdk_drawable_get_size (tree_view->priv->drag_window,
2224                                  &(drag_allocation.width),
2225                                  &(drag_allocation.height));
2226           drag_allocation.x = 0;
2227           drag_allocation.y = 0;
2228           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2229                                     &drag_allocation);
2230           width += drag_allocation.width;
2231           continue;
2232         }
2233
2234       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2235
2236       allocation.x = width;
2237       column->width = real_requested_width;
2238
2239       if (column->expand)
2240         {
2241           if (number_of_expand_columns == 1)
2242             {
2243               /* We add the remander to the last column as
2244                * */
2245               column->width += extra;
2246             }
2247           else
2248             {
2249               column->width += extra_per_column;
2250               extra -= extra_per_column;
2251               number_of_expand_columns --;
2252             }
2253         }
2254       else if (number_of_expand_columns == 0 &&
2255                list == last_column)
2256         {
2257           column->width += extra;
2258         }
2259
2260       g_object_notify (G_OBJECT (column), "width");
2261
2262       allocation.width = column->width;
2263       width += column->width;
2264
2265       if (column->width > old_width)
2266         column_changed = TRUE;
2267
2268       gtk_widget_size_allocate (column->button, &allocation);
2269
2270       if (column->window)
2271         gdk_window_move_resize (column->window,
2272                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2273                                 allocation.y,
2274                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2275     }
2276
2277   if (column_changed)
2278     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2279 }
2280
2281
2282 static void
2283 gtk_tree_view_size_allocate (GtkWidget     *widget,
2284                              GtkAllocation *allocation)
2285 {
2286   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2287   GList *tmp_list;
2288   gboolean width_changed = FALSE;
2289   gint old_width = widget->allocation.width;
2290
2291   if (allocation->width != widget->allocation.width)
2292     width_changed = TRUE;
2293
2294   widget->allocation = *allocation;
2295
2296   tmp_list = tree_view->priv->children;
2297
2298   while (tmp_list)
2299     {
2300       GtkAllocation allocation;
2301
2302       GtkTreeViewChild *child = tmp_list->data;
2303       tmp_list = tmp_list->next;
2304
2305       /* totally ignore our child's requisition */
2306       allocation.x = child->x;
2307       allocation.y = child->y;
2308       allocation.width = child->width;
2309       allocation.height = child->height;
2310       gtk_widget_size_allocate (child->widget, &allocation);
2311     }
2312
2313
2314   tree_view->priv->hadjustment->page_size = allocation->width;
2315   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2316   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2317   tree_view->priv->hadjustment->lower = 0;
2318   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2319
2320   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2321      {
2322       if (allocation->width < tree_view->priv->width)
2323          {
2324          if (tree_view->priv->init_hadjust_value)
2325            {
2326            tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2327            tree_view->priv->init_hadjust_value = FALSE;
2328            }
2329          else if(allocation->width != old_width)
2330            tree_view->priv->hadjustment->value = CLAMP(tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2331          else
2332            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);
2333          }
2334       else
2335          {
2336          tree_view->priv->hadjustment->value = 0;
2337          tree_view->priv->init_hadjust_value = TRUE;
2338          }
2339      }
2340   else
2341      if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2342         tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2343
2344   gtk_adjustment_changed (tree_view->priv->hadjustment);
2345
2346   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2347   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2348   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2349   tree_view->priv->vadjustment->lower = 0;
2350   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2351
2352   gtk_adjustment_changed (tree_view->priv->vadjustment);
2353
2354   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2355   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2356     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2357   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2358     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2359                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2360   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2361     gtk_tree_view_top_row_to_dy (tree_view);
2362   else
2363     gtk_tree_view_dy_to_top_row (tree_view);
2364
2365   if (GTK_WIDGET_REALIZED (widget))
2366     {
2367       gdk_window_move_resize (widget->window,
2368                               allocation->x, allocation->y,
2369                               allocation->width, allocation->height);
2370       gdk_window_move_resize (tree_view->priv->header_window,
2371                               - (gint) tree_view->priv->hadjustment->value,
2372                               0,
2373                               MAX (tree_view->priv->width, allocation->width),
2374                               tree_view->priv->header_height);
2375       gdk_window_move_resize (tree_view->priv->bin_window,
2376                               - (gint) tree_view->priv->hadjustment->value,
2377                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2378                               MAX (tree_view->priv->width, allocation->width),
2379                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2380     }
2381
2382   gtk_tree_view_size_allocate_columns (widget);
2383
2384   if (tree_view->priv->tree == NULL)
2385     invalidate_empty_focus (tree_view);
2386
2387   if (GTK_WIDGET_REALIZED (widget))
2388     {
2389       gboolean has_expand_column = FALSE;
2390       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2391         {
2392           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2393             {
2394               has_expand_column = TRUE;
2395               break;
2396             }
2397         }
2398
2399       /* This little hack only works if we have an LTR locale, and no column has the  */
2400       if (width_changed)
2401         {
2402           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2403               ! has_expand_column)
2404             invalidate_last_column (tree_view);
2405           else
2406             gtk_widget_queue_draw (widget);
2407         }
2408     }
2409 }
2410
2411 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2412 static void
2413 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2414 {
2415   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
2416     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2417   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2418 }
2419
2420 static inline gboolean
2421 row_is_separator (GtkTreeView *tree_view,
2422                   GtkTreeIter *iter,
2423                   GtkTreePath *path)
2424 {
2425   gboolean is_separator = FALSE;
2426
2427   if (tree_view->priv->row_separator_func)
2428     {
2429       GtkTreeIter tmpiter;
2430
2431       if (iter)
2432         tmpiter = *iter;
2433       else
2434         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2435
2436       is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
2437                                                               &tmpiter,
2438                                                               tree_view->priv->row_separator_data);
2439     }
2440
2441   return is_separator;
2442 }
2443
2444 static gboolean
2445 gtk_tree_view_button_press (GtkWidget      *widget,
2446                             GdkEventButton *event)
2447 {
2448   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2449   GList *list;
2450   GtkTreeViewColumn *column = NULL;
2451   gint i;
2452   GdkRectangle background_area;
2453   GdkRectangle cell_area;
2454   gint vertical_separator;
2455   gint horizontal_separator;
2456   gboolean path_is_selectable;
2457   gboolean rtl;
2458
2459   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2460   gtk_tree_view_stop_editing (tree_view, FALSE);
2461   gtk_widget_style_get (widget,
2462                         "vertical-separator", &vertical_separator,
2463                         "horizontal-separator", &horizontal_separator,
2464                         NULL);
2465
2466
2467   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2468    * we're done handling the button press.
2469    */
2470
2471   if (event->window == tree_view->priv->bin_window)
2472     {
2473       GtkRBNode *node;
2474       GtkRBTree *tree;
2475       GtkTreePath *path;
2476       gchar *path_string;
2477       gint depth;
2478       gint new_y;
2479       gint y_offset;
2480       gint dval;
2481       gint pre_val, aft_val;
2482       GtkTreeViewColumn *column = NULL;
2483       GtkCellRenderer *focus_cell = NULL;
2484       gint column_handled_click = FALSE;
2485       gboolean row_double_click = FALSE;
2486       gboolean rtl;
2487       gboolean node_selected;
2488
2489       /* Empty tree? */
2490       if (tree_view->priv->tree == NULL)
2491         {
2492           grab_focus_and_unset_draw_keyfocus (tree_view);
2493           return TRUE;
2494         }
2495
2496       /* are we in an arrow? */
2497       if (tree_view->priv->prelight_node &&
2498           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2499           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2500         {
2501           if (event->button == 1)
2502             {
2503               gtk_grab_add (widget);
2504               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2505               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2506               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2507                                         tree_view->priv->prelight_tree,
2508                                         tree_view->priv->prelight_node,
2509                                         event->x,
2510                                         event->y);
2511             }
2512
2513           grab_focus_and_unset_draw_keyfocus (tree_view);
2514           return TRUE;
2515         }
2516
2517       /* find the node that was clicked */
2518       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2519       if (new_y < 0)
2520         new_y = 0;
2521       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2522
2523       if (node == NULL)
2524         {
2525           /* We clicked in dead space */
2526           grab_focus_and_unset_draw_keyfocus (tree_view);
2527           return TRUE;
2528         }
2529
2530       /* Get the path and the node */
2531       path = _gtk_tree_view_find_path (tree_view, tree, node);
2532       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2533
2534       if (!path_is_selectable)
2535         {
2536           gtk_tree_path_free (path);
2537           grab_focus_and_unset_draw_keyfocus (tree_view);
2538           return TRUE;
2539         }
2540
2541       depth = gtk_tree_path_get_depth (path);
2542       background_area.y = y_offset + event->y;
2543       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2544       background_area.x = 0;
2545
2546
2547       /* Let the column have a chance at selecting it. */
2548       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2549       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2550            list; list = (rtl ? list->prev : list->next))
2551         {
2552           GtkTreeViewColumn *candidate = list->data;
2553
2554           if (!candidate->visible)
2555             continue;
2556
2557           background_area.width = candidate->width;
2558           if ((background_area.x > (gint) event->x) ||
2559               (background_area.x + background_area.width <= (gint) event->x))
2560             {
2561               background_area.x += background_area.width;
2562               continue;
2563             }
2564
2565           /* we found the focus column */
2566           column = candidate;
2567           cell_area = background_area;
2568           cell_area.width -= horizontal_separator;
2569           cell_area.height -= vertical_separator;
2570           cell_area.x += horizontal_separator/2;
2571           cell_area.y += vertical_separator/2;
2572           if (gtk_tree_view_is_expander_column (tree_view, column))
2573             {
2574               if (!rtl)
2575                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2576               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2577
2578               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2579                 {
2580                   if (!rtl)
2581                     cell_area.x += depth * tree_view->priv->expander_size;
2582                   cell_area.width -= depth * tree_view->priv->expander_size;
2583                 }
2584             }
2585           break;
2586         }
2587
2588       if (column == NULL)
2589         {
2590           gtk_tree_path_free (path);
2591           grab_focus_and_unset_draw_keyfocus (tree_view);
2592           return FALSE;
2593         }
2594
2595       tree_view->priv->focus_column = column;
2596
2597       /* decide if we edit */
2598       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2599           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2600         {
2601           GtkTreePath *anchor;
2602           GtkTreeIter iter;
2603
2604           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2605           gtk_tree_view_column_cell_set_cell_data (column,
2606                                                    tree_view->priv->model,
2607                                                    &iter,
2608                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2609                                                    node->children?TRUE:FALSE);
2610
2611           if (tree_view->priv->anchor)
2612             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2613           else
2614             anchor = NULL;
2615
2616           if ((anchor && !gtk_tree_path_compare (anchor, path))
2617               || !_gtk_tree_view_column_has_editable_cell (column))
2618             {
2619               GtkCellEditable *cell_editable = NULL;
2620
2621               /* FIXME: get the right flags */
2622               guint flags = 0;
2623
2624               path_string = gtk_tree_path_to_string (path);
2625
2626               if (_gtk_tree_view_column_cell_event (column,
2627                                                     &cell_editable,
2628                                                     (GdkEvent *)event,
2629                                                     path_string,
2630                                                     &background_area,
2631                                                     &cell_area, flags))
2632                 {
2633                   if (cell_editable != NULL)
2634                     {
2635                       gint left, right;
2636                       GdkRectangle area;
2637
2638                       area = cell_area;
2639                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2640
2641                       area.x += left;
2642                       area.width -= right + left;
2643
2644                       gtk_tree_view_real_start_editing (tree_view,
2645                                                         column,
2646                                                         path,
2647                                                         cell_editable,
2648                                                         &area,
2649                                                         (GdkEvent *)event,
2650                                                         flags);
2651                       g_free (path_string);
2652                       gtk_tree_path_free (path);
2653                       gtk_tree_path_free (anchor);
2654                       return TRUE;
2655                     }
2656                   column_handled_click = TRUE;
2657                 }
2658               g_free (path_string);
2659             }
2660           if (anchor)
2661             gtk_tree_path_free (anchor);
2662         }
2663
2664       /* select */
2665       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2666       pre_val = tree_view->priv->vadjustment->value;
2667
2668       /* we only handle selection modifications on the first button press
2669        */
2670       if (event->type == GDK_BUTTON_PRESS)
2671         {
2672           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2673             tree_view->priv->ctrl_pressed = TRUE;
2674           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2675             tree_view->priv->shift_pressed = TRUE;
2676
2677           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2678           if (focus_cell)
2679             gtk_tree_view_column_focus_cell (column, focus_cell);
2680
2681           if (event->state & GDK_CONTROL_MASK)
2682             {
2683               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2684               gtk_tree_view_real_toggle_cursor_row (tree_view);
2685             }
2686           else if (event->state & GDK_SHIFT_MASK)
2687             {
2688               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2689               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2690             }
2691           else
2692             {
2693               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2694             }
2695
2696           tree_view->priv->ctrl_pressed = FALSE;
2697           tree_view->priv->shift_pressed = FALSE;
2698         }
2699
2700       /* the treeview may have been scrolled because of _set_cursor,
2701        * correct here
2702        */
2703
2704       aft_val = tree_view->priv->vadjustment->value;
2705       dval = pre_val - aft_val;
2706
2707       cell_area.y += dval;
2708       background_area.y += dval;
2709
2710       /* Save press to possibly begin a drag
2711        */
2712       if (!column_handled_click &&
2713           !tree_view->priv->in_grab &&
2714           tree_view->priv->pressed_button < 0)
2715         {
2716           tree_view->priv->pressed_button = event->button;
2717           tree_view->priv->press_start_x = event->x;
2718           tree_view->priv->press_start_y = event->y;
2719
2720           if (tree_view->priv->rubber_banding_enable
2721               && !node_selected
2722               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2723             {
2724               tree_view->priv->press_start_y += tree_view->priv->dy;
2725               tree_view->priv->rubber_band_x = event->x;
2726               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2727               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2728
2729               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2730                 tree_view->priv->rubber_band_ctrl = TRUE;
2731               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2732                 tree_view->priv->rubber_band_shift = TRUE;
2733             }
2734         }
2735
2736       /* Test if a double click happened on the same row. */
2737       if (event->button == 1)
2738         {
2739           /* We also handle triple clicks here, because a user could have done
2740            * a first click and a second double click on different rows.
2741            */
2742           if ((event->type == GDK_2BUTTON_PRESS
2743                || event->type == GDK_3BUTTON_PRESS)
2744               && tree_view->priv->last_button_press)
2745             {
2746               GtkTreePath *lsc;
2747
2748               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2749
2750               if (lsc)
2751                 {
2752                   row_double_click = !gtk_tree_path_compare (lsc, path);
2753                   gtk_tree_path_free (lsc);
2754                 }
2755             }
2756
2757           if (row_double_click)
2758             {
2759               if (tree_view->priv->last_button_press)
2760                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2761               if (tree_view->priv->last_button_press_2)
2762                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2763               tree_view->priv->last_button_press = NULL;
2764               tree_view->priv->last_button_press_2 = NULL;
2765             }
2766           else
2767             {
2768               if (tree_view->priv->last_button_press)
2769                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2770               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2771               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2772             }
2773         }
2774
2775       if (row_double_click)
2776         {
2777           gtk_grab_remove (widget);
2778           gtk_tree_view_row_activated (tree_view, path, column);
2779
2780           if (tree_view->priv->pressed_button == event->button)
2781             tree_view->priv->pressed_button = -1;
2782         }
2783
2784       gtk_tree_path_free (path);
2785
2786       /* If we activated the row through a double click we don't want to grab
2787        * focus back, as moving focus to another widget is pretty common.
2788        */
2789       if (!row_double_click)
2790         grab_focus_and_unset_draw_keyfocus (tree_view);
2791
2792       return TRUE;
2793     }
2794
2795   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2796    */
2797   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2798     {
2799       column = list->data;
2800       if (event->window == column->window &&
2801           column->resizable &&
2802           column->window)
2803         {
2804           gpointer drag_data;
2805
2806           if (event->type == GDK_2BUTTON_PRESS &&
2807               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2808             {
2809               column->use_resized_width = FALSE;
2810               _gtk_tree_view_column_autosize (tree_view, column);
2811               return TRUE;
2812             }
2813
2814           if (gdk_pointer_grab (column->window, FALSE,
2815                                 GDK_POINTER_MOTION_HINT_MASK |
2816                                 GDK_BUTTON1_MOTION_MASK |
2817                                 GDK_BUTTON_RELEASE_MASK,
2818                                 NULL, NULL, event->time))
2819             return FALSE;
2820
2821           gtk_grab_add (widget);
2822           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2823           column->resized_width = column->width;
2824
2825           /* block attached dnd signal handler */
2826           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2827           if (drag_data)
2828             g_signal_handlers_block_matched (widget,
2829                                              G_SIGNAL_MATCH_DATA,
2830                                              0, 0, NULL, NULL,
2831                                              drag_data);
2832
2833           tree_view->priv->drag_pos = i;
2834           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2835
2836           if (!GTK_WIDGET_HAS_FOCUS (widget))
2837             gtk_widget_grab_focus (widget);
2838
2839           return TRUE;
2840         }
2841     }
2842   return FALSE;
2843 }
2844
2845 /* GtkWidget::button_release_event helper */
2846 static gboolean
2847 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2848                                           GdkEventButton *event)
2849 {
2850   GtkTreeView *tree_view;
2851   GList *l;
2852   gboolean rtl;
2853
2854   tree_view = GTK_TREE_VIEW (widget);
2855
2856   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2857   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2858   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2859
2860   /* Move the button back */
2861   g_object_ref (tree_view->priv->drag_column->button);
2862   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2863   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2864   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2865   g_object_unref (tree_view->priv->drag_column->button);
2866   gtk_widget_queue_resize (widget);
2867   if (tree_view->priv->drag_column->resizable)
2868     {
2869       gdk_window_raise (tree_view->priv->drag_column->window);
2870       gdk_window_show (tree_view->priv->drag_column->window);
2871     }
2872   else
2873     gdk_window_hide (tree_view->priv->drag_column->window);
2874
2875   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2876
2877   if (rtl)
2878     {
2879       if (tree_view->priv->cur_reorder &&
2880           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2881         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2882                                          tree_view->priv->cur_reorder->right_column);
2883     }
2884   else
2885     {
2886       if (tree_view->priv->cur_reorder &&
2887           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2888         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2889                                          tree_view->priv->cur_reorder->left_column);
2890     }
2891   tree_view->priv->drag_column = NULL;
2892   gdk_window_hide (tree_view->priv->drag_window);
2893
2894   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2895     g_slice_free (GtkTreeViewColumnReorder, l->data);
2896   g_list_free (tree_view->priv->column_drag_info);
2897   tree_view->priv->column_drag_info = NULL;
2898   tree_view->priv->cur_reorder = NULL;
2899
2900   if (tree_view->priv->drag_highlight_window)
2901     gdk_window_hide (tree_view->priv->drag_highlight_window);
2902
2903   /* Reset our flags */
2904   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2905   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2906
2907   return TRUE;
2908 }
2909
2910 /* GtkWidget::button_release_event helper */
2911 static gboolean
2912 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2913                                             GdkEventButton *event)
2914 {
2915   GtkTreeView *tree_view;
2916   gpointer drag_data;
2917
2918   tree_view = GTK_TREE_VIEW (widget);
2919
2920   tree_view->priv->drag_pos = -1;
2921
2922   /* unblock attached dnd signal handler */
2923   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2924   if (drag_data)
2925     g_signal_handlers_unblock_matched (widget,
2926                                        G_SIGNAL_MATCH_DATA,
2927                                        0, 0, NULL, NULL,
2928                                        drag_data);
2929
2930   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2931   gtk_grab_remove (widget);
2932   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2933                               event->time);
2934   return TRUE;
2935 }
2936
2937 static gboolean
2938 gtk_tree_view_button_release (GtkWidget      *widget,
2939                               GdkEventButton *event)
2940 {
2941   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2942
2943   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2944     return gtk_tree_view_button_release_drag_column (widget, event);
2945
2946   if (tree_view->priv->rubber_band_status)
2947     gtk_tree_view_stop_rubber_band (tree_view);
2948
2949   if (tree_view->priv->pressed_button == event->button)
2950     tree_view->priv->pressed_button = -1;
2951
2952   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
2953     return gtk_tree_view_button_release_column_resize (widget, event);
2954
2955   if (tree_view->priv->button_pressed_node == NULL)
2956     return FALSE;
2957
2958   if (event->button == 1)
2959     {
2960       gtk_grab_remove (widget);
2961       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
2962           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
2963         {
2964           GtkTreePath *path = NULL;
2965
2966           path = _gtk_tree_view_find_path (tree_view,
2967                                            tree_view->priv->button_pressed_tree,
2968                                            tree_view->priv->button_pressed_node);
2969           /* Actually activate the node */
2970           if (tree_view->priv->button_pressed_node->children == NULL)
2971             gtk_tree_view_real_expand_row (tree_view, path,
2972                                            tree_view->priv->button_pressed_tree,
2973                                            tree_view->priv->button_pressed_node,
2974                                            FALSE, TRUE);
2975           else
2976             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
2977                                              tree_view->priv->button_pressed_tree,
2978                                              tree_view->priv->button_pressed_node, TRUE);
2979           gtk_tree_path_free (path);
2980         }
2981
2982       tree_view->priv->button_pressed_tree = NULL;
2983       tree_view->priv->button_pressed_node = NULL;
2984     }
2985
2986   return TRUE;
2987 }
2988
2989 static gboolean
2990 gtk_tree_view_grab_broken (GtkWidget          *widget,
2991                            GdkEventGrabBroken *event)
2992 {
2993   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2994
2995   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2996     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
2997
2998   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
2999     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3000
3001   return TRUE;
3002 }
3003
3004 #if 0
3005 static gboolean
3006 gtk_tree_view_configure (GtkWidget *widget,
3007                          GdkEventConfigure *event)
3008 {
3009   GtkTreeView *tree_view;
3010
3011   tree_view = GTK_TREE_VIEW (widget);
3012   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3013
3014   return FALSE;
3015 }
3016 #endif
3017
3018 /* GtkWidget::motion_event function set.
3019  */
3020
3021 static gboolean
3022 coords_are_over_arrow (GtkTreeView *tree_view,
3023                        GtkRBTree   *tree,
3024                        GtkRBNode   *node,
3025                        /* these are in bin window coords */
3026                        gint         x,
3027                        gint         y)
3028 {
3029   GdkRectangle arrow;
3030   gint x2;
3031
3032   if (!GTK_WIDGET_REALIZED (tree_view))
3033     return FALSE;
3034
3035   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3036     return FALSE;
3037
3038   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3039
3040   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3041
3042   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3043
3044   arrow.width = x2 - arrow.x;
3045
3046   return (x >= arrow.x &&
3047           x < (arrow.x + arrow.width) &&
3048           y >= arrow.y &&
3049           y < (arrow.y + arrow.height));
3050 }
3051
3052 static gboolean
3053 auto_expand_timeout (gpointer data)
3054 {
3055   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3056   GtkTreePath *path;
3057
3058   if (tree_view->priv->prelight_node)
3059     {
3060       path = _gtk_tree_view_find_path (tree_view,
3061                                        tree_view->priv->prelight_tree,
3062                                        tree_view->priv->prelight_node);
3063
3064       if (tree_view->priv->prelight_node->children)
3065         gtk_tree_view_collapse_row (tree_view, path);
3066       else
3067         gtk_tree_view_expand_row (tree_view, path, FALSE);
3068
3069       gtk_tree_path_free (path);
3070     }
3071
3072   tree_view->priv->auto_expand_timeout = 0;
3073
3074   return FALSE;
3075 }
3076
3077 static void
3078 remove_auto_expand_timeout (GtkTreeView *tree_view)
3079 {
3080   if (tree_view->priv->auto_expand_timeout != 0)
3081     {
3082       g_source_remove (tree_view->priv->auto_expand_timeout);
3083       tree_view->priv->auto_expand_timeout = 0;
3084     }
3085 }
3086
3087 static void
3088 do_prelight (GtkTreeView *tree_view,
3089              GtkRBTree   *tree,
3090              GtkRBNode   *node,
3091              /* these are in bin_window coords */
3092              gint         x,
3093              gint         y)
3094 {
3095   if (tree_view->priv->prelight_tree == tree &&
3096       tree_view->priv->prelight_node == node)
3097     {
3098       /*  We are still on the same node,
3099           but we might need to take care of the arrow  */
3100
3101       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3102         {
3103           gboolean over_arrow;
3104           gboolean flag_set;
3105
3106           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3107           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3108                                              GTK_TREE_VIEW_ARROW_PRELIT);
3109
3110           if (over_arrow != flag_set)
3111             {
3112               if (over_arrow)
3113                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3114                                         GTK_TREE_VIEW_ARROW_PRELIT);
3115               else
3116                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3117                                           GTK_TREE_VIEW_ARROW_PRELIT);
3118
3119               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3120             }
3121         }
3122
3123       return;
3124     }
3125
3126   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3127     {
3128       /*  Unprelight the old node and arrow  */
3129
3130       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3131                              GTK_RBNODE_IS_PRELIT);
3132
3133       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3134           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3135         {
3136           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3137
3138           gtk_tree_view_draw_arrow (tree_view,
3139                                     tree_view->priv->prelight_tree,
3140                                     tree_view->priv->prelight_node,
3141                                     x,
3142                                     y);
3143         }
3144
3145       _gtk_tree_view_queue_draw_node (tree_view,
3146                                       tree_view->priv->prelight_tree,
3147                                       tree_view->priv->prelight_node,
3148                                       NULL);
3149     }
3150
3151
3152   if (tree_view->priv->hover_expand)
3153     remove_auto_expand_timeout (tree_view);
3154
3155   /*  Set the new prelight values  */
3156   tree_view->priv->prelight_node = node;
3157   tree_view->priv->prelight_tree = tree;
3158
3159   if (!node || !tree)
3160     return;
3161
3162   /*  Prelight the new node and arrow  */
3163
3164   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3165       && coords_are_over_arrow (tree_view, tree, node, x, y))
3166     {
3167       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3168
3169       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3170     }
3171
3172   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3173
3174   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3175
3176   if (tree_view->priv->hover_expand)
3177     {
3178       tree_view->priv->auto_expand_timeout =
3179         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3180     }
3181 }
3182
3183 static void
3184 prelight_or_select (GtkTreeView *tree_view,
3185                     GtkRBTree   *tree,
3186                     GtkRBNode   *node,
3187                     /* these are in bin_window coords */
3188                     gint         x,
3189                     gint         y)
3190 {
3191   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3192
3193   if (tree_view->priv->hover_selection &&
3194       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3195       !(tree_view->priv->edited_column &&
3196         tree_view->priv->edited_column->editable_widget))
3197     {
3198       if (node)
3199         {
3200           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3201             {
3202               GtkTreePath *path;
3203
3204               path = _gtk_tree_view_find_path (tree_view, tree, node);
3205               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3206               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3207                 {
3208                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3209                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3210                 }
3211               gtk_tree_path_free (path);
3212             }
3213         }
3214
3215       else if (mode == GTK_SELECTION_SINGLE)
3216         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3217     }
3218
3219     do_prelight (tree_view, tree, node, x, y);
3220 }
3221
3222 static void
3223 ensure_unprelighted (GtkTreeView *tree_view)
3224 {
3225   do_prelight (tree_view,
3226                NULL, NULL,
3227                -1000, -1000); /* coords not possibly over an arrow */
3228
3229   g_assert (tree_view->priv->prelight_node == NULL);
3230 }
3231
3232
3233
3234
3235 /* Our motion arrow is either a box (in the case of the original spot)
3236  * or an arrow.  It is expander_size wide.
3237  */
3238 /*
3239  * 11111111111111
3240  * 01111111111110
3241  * 00111111111100
3242  * 00011111111000
3243  * 00001111110000
3244  * 00000111100000
3245  * 00000111100000
3246  * 00000111100000
3247  * ~ ~ ~ ~ ~ ~ ~
3248  * 00000111100000
3249  * 00000111100000
3250  * 00000111100000
3251  * 00001111110000
3252  * 00011111111000
3253  * 00111111111100
3254  * 01111111111110
3255  * 11111111111111
3256  */
3257
3258 static void
3259 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3260 {
3261   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3262   GtkWidget *widget = GTK_WIDGET (tree_view);
3263   GdkBitmap *mask = NULL;
3264   gint x;
3265   gint y;
3266   gint width;
3267   gint height;
3268   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3269   GdkWindowAttr attributes;
3270   guint attributes_mask;
3271
3272   if (!reorder ||
3273       reorder->left_column == tree_view->priv->drag_column ||
3274       reorder->right_column == tree_view->priv->drag_column)
3275     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3276   else if (reorder->left_column || reorder->right_column)
3277     {
3278       GdkRectangle visible_rect;
3279       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3280       if (reorder->left_column)
3281         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3282       else
3283         x = reorder->right_column->button->allocation.x;
3284
3285       if (x < visible_rect.x)
3286         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3287       else if (x > visible_rect.x + visible_rect.width)
3288         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3289       else
3290         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3291     }
3292
3293   /* We want to draw the rectangle over the initial location. */
3294   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3295     {
3296       GdkGC *gc;
3297       GdkColor col;
3298
3299       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3300         {
3301           if (tree_view->priv->drag_highlight_window)
3302             {
3303               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3304                                         NULL);
3305               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3306             }
3307
3308           attributes.window_type = GDK_WINDOW_CHILD;
3309           attributes.wclass = GDK_INPUT_OUTPUT;
3310           attributes.x = tree_view->priv->drag_column_x;
3311           attributes.y = 0;
3312           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3313           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3314           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3315           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3316           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3317           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3318           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3319           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3320
3321           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3322           gc = gdk_gc_new (mask);
3323           col.pixel = 1;
3324           gdk_gc_set_foreground (gc, &col);
3325           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3326           col.pixel = 0;
3327           gdk_gc_set_foreground(gc, &col);
3328           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3329           g_object_unref (gc);
3330
3331           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3332                                          mask, 0, 0);
3333           if (mask) g_object_unref (mask);
3334           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3335         }
3336     }
3337   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3338     {
3339       gint i, j = 1;
3340       GdkGC *gc;
3341       GdkColor col;
3342
3343       width = tree_view->priv->expander_size;
3344
3345       /* Get x, y, width, height of arrow */
3346       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3347       if (reorder->left_column)
3348         {
3349           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3350           height = reorder->left_column->button->allocation.height;
3351         }
3352       else
3353         {
3354           x += reorder->right_column->button->allocation.x - width/2;
3355           height = reorder->right_column->button->allocation.height;
3356         }
3357       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3358       height += tree_view->priv->expander_size;
3359
3360       /* Create the new window */
3361       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3362         {
3363           if (tree_view->priv->drag_highlight_window)
3364             {
3365               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3366                                         NULL);
3367               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3368             }
3369
3370           attributes.window_type = GDK_WINDOW_TEMP;
3371           attributes.wclass = GDK_INPUT_OUTPUT;
3372           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3373           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3374           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3375           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3376           attributes.x = x;
3377           attributes.y = y;
3378           attributes.width = width;
3379           attributes.height = height;
3380           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3381                                                                    &attributes, attributes_mask);
3382           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3383
3384           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3385           gc = gdk_gc_new (mask);
3386           col.pixel = 1;
3387           gdk_gc_set_foreground (gc, &col);
3388           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3389
3390           /* Draw the 2 arrows as per above */
3391           col.pixel = 0;
3392           gdk_gc_set_foreground (gc, &col);
3393           for (i = 0; i < width; i ++)
3394             {
3395               if (i == (width/2 - 1))
3396                 continue;
3397               gdk_draw_line (mask, gc, i, j, i, height - j);
3398               if (i < (width/2 - 1))
3399                 j++;
3400               else
3401                 j--;
3402             }
3403           g_object_unref (gc);
3404           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3405                                          mask, 0, 0);
3406           if (mask) g_object_unref (mask);
3407         }
3408
3409       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3410       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3411     }
3412   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3413            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3414     {
3415       gint i, j = 1;
3416       GdkGC *gc;
3417       GdkColor col;
3418
3419       width = tree_view->priv->expander_size;
3420
3421       /* Get x, y, width, height of arrow */
3422       width = width/2; /* remember, the arrow only takes half the available width */
3423       gdk_window_get_origin (widget->window, &x, &y);
3424       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3425         x += widget->allocation.width - width;
3426
3427       if (reorder->left_column)
3428         height = reorder->left_column->button->allocation.height;
3429       else
3430         height = reorder->right_column->button->allocation.height;
3431
3432       y -= tree_view->priv->expander_size;
3433       height += 2*tree_view->priv->expander_size;
3434
3435       /* Create the new window */
3436       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3437           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3438         {
3439           if (tree_view->priv->drag_highlight_window)
3440             {
3441               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3442                                         NULL);
3443               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3444             }
3445
3446           attributes.window_type = GDK_WINDOW_TEMP;
3447           attributes.wclass = GDK_INPUT_OUTPUT;
3448           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3449           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3450           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3451           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3452           attributes.x = x;
3453           attributes.y = y;
3454           attributes.width = width;
3455           attributes.height = height;
3456           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3457           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3458
3459           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3460           gc = gdk_gc_new (mask);
3461           col.pixel = 1;
3462           gdk_gc_set_foreground (gc, &col);
3463           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3464
3465           /* Draw the 2 arrows as per above */
3466           col.pixel = 0;
3467           gdk_gc_set_foreground (gc, &col);
3468           j = tree_view->priv->expander_size;
3469           for (i = 0; i < width; i ++)
3470             {
3471               gint k;
3472               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3473                 k = width - i - 1;
3474               else
3475                 k = i;
3476               gdk_draw_line (mask, gc, k, j, k, height - j);
3477               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3478               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3479               j--;
3480             }
3481           g_object_unref (gc);
3482           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3483                                          mask, 0, 0);
3484           if (mask) g_object_unref (mask);
3485         }
3486
3487       tree_view->priv->drag_column_window_state = arrow_type;
3488       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3489    }
3490   else
3491     {
3492       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3493       gdk_window_hide (tree_view->priv->drag_highlight_window);
3494       return;
3495     }
3496
3497   gdk_window_show (tree_view->priv->drag_highlight_window);
3498   gdk_window_raise (tree_view->priv->drag_highlight_window);
3499 }
3500
3501 static gboolean
3502 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3503                                     GdkEventMotion *event)
3504 {
3505   gint x;
3506   gint new_width;
3507   GtkTreeViewColumn *column;
3508   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3509
3510   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3511
3512   if (event->is_hint || event->window != widget->window)
3513     gtk_widget_get_pointer (widget, &x, NULL);
3514   else
3515     x = event->x;
3516
3517   if (tree_view->priv->hadjustment)
3518     x += tree_view->priv->hadjustment->value;
3519
3520   new_width = gtk_tree_view_new_column_width (tree_view,
3521                                               tree_view->priv->drag_pos, &x);
3522   if (x != tree_view->priv->x_drag &&
3523       (new_width != column->fixed_width))
3524     {
3525       column->use_resized_width = TRUE;
3526       column->resized_width = new_width;
3527       gtk_widget_queue_resize (widget);
3528     }
3529
3530   return FALSE;
3531 }
3532
3533
3534 static void
3535 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3536 {
3537   GtkTreeViewColumnReorder *reorder = NULL;
3538   GList *list;
3539   gint mouse_x;
3540
3541   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3542   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3543     {
3544       reorder = (GtkTreeViewColumnReorder *) list->data;
3545       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3546         break;
3547       reorder = NULL;
3548     }
3549
3550   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3551       return;*/
3552
3553   tree_view->priv->cur_reorder = reorder;
3554   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3555 }
3556
3557 static void
3558 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3559 {
3560   GdkRectangle visible_rect;
3561   gint y;
3562   gint offset;
3563   gfloat value;
3564
3565   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3566   y += tree_view->priv->dy;
3567
3568   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3569
3570   /* see if we are near the edge. */
3571   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3572   if (offset > 0)
3573     {
3574       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3575       if (offset < 0)
3576         return;
3577     }
3578
3579   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3580                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3581   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3582 }
3583
3584 static gboolean
3585 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3586 {
3587   GdkRectangle visible_rect;
3588   gint x;
3589   gint offset;
3590   gfloat value;
3591
3592   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3593
3594   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3595
3596   /* See if we are near the edge. */
3597   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3598   if (offset > 0)
3599     {
3600       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3601       if (offset < 0)
3602         return TRUE;
3603     }
3604   offset = offset/3;
3605
3606   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3607                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3608   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3609
3610   return TRUE;
3611
3612 }
3613
3614 static gboolean
3615 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3616                                   GdkEventMotion *event)
3617 {
3618   GtkTreeView *tree_view = (GtkTreeView *) widget;
3619   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3620   gint x, y;
3621
3622   /* Sanity Check */
3623   if ((column == NULL) ||
3624       (event->window != tree_view->priv->drag_window))
3625     return FALSE;
3626
3627   /* Handle moving the header */
3628   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3629   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3630              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3631   gdk_window_move (tree_view->priv->drag_window, x, y);
3632
3633   /* autoscroll, if needed */
3634   gtk_tree_view_horizontal_autoscroll (tree_view);
3635   /* Update the current reorder position and arrow; */
3636   gtk_tree_view_update_current_reorder (tree_view);
3637
3638   return TRUE;
3639 }
3640
3641 static void
3642 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3643 {
3644   remove_scroll_timeout (tree_view);
3645   gtk_grab_remove (GTK_WIDGET (tree_view));
3646
3647   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3648     {
3649       GtkTreePath *tmp_path;
3650
3651       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3652
3653       /* The anchor path should be set to the start path */
3654       tmp_path = _gtk_tree_view_find_path (tree_view,
3655                                            tree_view->priv->rubber_band_start_tree,
3656                                            tree_view->priv->rubber_band_start_node);
3657
3658       if (tree_view->priv->anchor)
3659         gtk_tree_row_reference_free (tree_view->priv->anchor);
3660
3661       tree_view->priv->anchor =
3662         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3663                                           tree_view->priv->model,
3664                                           tmp_path);
3665
3666       gtk_tree_path_free (tmp_path);
3667
3668       /* ... and the cursor to the end path */
3669       tmp_path = _gtk_tree_view_find_path (tree_view,
3670                                            tree_view->priv->rubber_band_end_tree,
3671                                            tree_view->priv->rubber_band_end_node);
3672       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3673       gtk_tree_path_free (tmp_path);
3674
3675       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3676     }
3677
3678   /* Clear status variables */
3679   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3680   tree_view->priv->rubber_band_shift = 0;
3681   tree_view->priv->rubber_band_ctrl = 0;
3682
3683   tree_view->priv->rubber_band_start_node = NULL;
3684   tree_view->priv->rubber_band_start_tree = NULL;
3685   tree_view->priv->rubber_band_end_node = NULL;
3686   tree_view->priv->rubber_band_end_tree = NULL;
3687 }
3688
3689 static void
3690 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3691                                                  GtkRBTree   *start_tree,
3692                                                  GtkRBNode   *start_node,
3693                                                  GtkRBTree   *end_tree,
3694                                                  GtkRBNode   *end_node,
3695                                                  gboolean     select,
3696                                                  gboolean     skip_start,
3697                                                  gboolean     skip_end)
3698 {
3699   if (start_node == end_node)
3700     return;
3701
3702   /* We skip the first node and jump inside the loop */
3703   if (skip_start)
3704     goto skip_first;
3705
3706   do
3707     {
3708       /* Small optimization by assuming insensitive nodes are never
3709        * selected.
3710        */
3711       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3712         {
3713           GtkTreePath *path;
3714           gboolean selectable;
3715
3716           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3717           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3718           gtk_tree_path_free (path);
3719
3720           if (!selectable)
3721             goto node_not_selectable;
3722         }
3723
3724       if (select)
3725         {
3726           if (tree_view->priv->rubber_band_shift)
3727             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3728           else if (tree_view->priv->rubber_band_ctrl)
3729             {
3730               /* Toggle the selection state */
3731               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3732                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3733               else
3734                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3735             }
3736           else
3737             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3738         }
3739       else
3740         {
3741           /* Mirror the above */
3742           if (tree_view->priv->rubber_band_shift)
3743             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3744           else if (tree_view->priv->rubber_band_ctrl)
3745             {
3746               /* Toggle the selection state */
3747               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3748                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3749               else
3750                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3751             }
3752           else
3753             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3754         }
3755
3756       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3757
3758 node_not_selectable:
3759       if (start_node == end_node)
3760         break;
3761
3762 skip_first:
3763
3764       if (start_node->children)
3765         {
3766           start_tree = start_node->children;
3767           start_node = start_tree->root;
3768           while (start_node->left != start_tree->nil)
3769             start_node = start_node->left;
3770         }
3771       else
3772         {
3773           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3774
3775           if (!start_tree)
3776             /* Ran out of tree */
3777             break;
3778         }
3779
3780       if (skip_end && start_node == end_node)
3781         break;
3782     }
3783   while (TRUE);
3784 }
3785
3786 static void
3787 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3788 {
3789   GtkRBTree *start_tree, *end_tree;
3790   GtkRBNode *start_node, *end_node;
3791
3792   _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);
3793   _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);
3794
3795   /* Handle the start area first */
3796   if (!tree_view->priv->rubber_band_start_node)
3797     {
3798       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3799                                                        start_tree,
3800                                                        start_node,
3801                                                        end_tree,
3802                                                        end_node,
3803                                                        TRUE,
3804                                                        FALSE,
3805                                                        FALSE);
3806     }
3807   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3808            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3809     {
3810       /* New node is above the old one; selection became bigger */
3811       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3812                                                        start_tree,
3813                                                        start_node,
3814                                                        tree_view->priv->rubber_band_start_tree,
3815                                                        tree_view->priv->rubber_band_start_node,
3816                                                        TRUE,
3817                                                        FALSE,
3818                                                        TRUE);
3819     }
3820   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3821            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3822     {
3823       /* New node is below the old one; selection became smaller */
3824       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3825                                                        tree_view->priv->rubber_band_start_tree,
3826                                                        tree_view->priv->rubber_band_start_node,
3827                                                        start_tree,
3828                                                        start_node,
3829                                                        FALSE,
3830                                                        FALSE,
3831                                                        TRUE);
3832     }
3833
3834   tree_view->priv->rubber_band_start_tree = start_tree;
3835   tree_view->priv->rubber_band_start_node = start_node;
3836
3837   /* Next, handle the end area */
3838   if (!tree_view->priv->rubber_band_end_node)
3839     {
3840       /* In the event this happens, start_node was also NULL; this case is
3841        * handled above.
3842        */
3843     }
3844   else if (!end_node)
3845     {
3846       /* Find the last node in the tree */
3847       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3848                                &end_tree, &end_node);
3849
3850       /* Selection reached end of the tree */
3851       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3852                                                        tree_view->priv->rubber_band_end_tree,
3853                                                        tree_view->priv->rubber_band_end_node,
3854                                                        end_tree,
3855                                                        end_node,
3856                                                        TRUE,
3857                                                        TRUE,
3858                                                        FALSE);
3859     }
3860   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3861            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3862     {
3863       /* New node is below the old one; selection became bigger */
3864       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3865                                                        tree_view->priv->rubber_band_end_tree,
3866                                                        tree_view->priv->rubber_band_end_node,
3867                                                        end_tree,
3868                                                        end_node,
3869                                                        TRUE,
3870                                                        TRUE,
3871                                                        FALSE);
3872     }
3873   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3874            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3875     {
3876       /* New node is above the old one; selection became smaller */
3877       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3878                                                        end_tree,
3879                                                        end_node,
3880                                                        tree_view->priv->rubber_band_end_tree,
3881                                                        tree_view->priv->rubber_band_end_node,
3882                                                        FALSE,
3883                                                        TRUE,
3884                                                        FALSE);
3885     }
3886
3887   tree_view->priv->rubber_band_end_tree = end_tree;
3888   tree_view->priv->rubber_band_end_node = end_node;
3889 }
3890
3891 static void
3892 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3893 {
3894   gint x, y;
3895   GdkRectangle old_area;
3896   GdkRectangle new_area;
3897   GdkRectangle common;
3898   GdkRegion *invalid_region;
3899
3900   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3901   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3902   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3903   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3904
3905   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3906
3907   x = MAX (x, 0);
3908   y = MAX (y, 0) + tree_view->priv->dy;
3909
3910   new_area.x = MIN (tree_view->priv->press_start_x, x);
3911   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3912   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3913   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3914
3915   invalid_region = gdk_region_rectangle (&old_area);
3916   gdk_region_union_with_rect (invalid_region, &new_area);
3917
3918   gdk_rectangle_intersect (&old_area, &new_area, &common);
3919   if (common.width > 2 && common.height > 2)
3920     {
3921       GdkRegion *common_region;
3922
3923       /* make sure the border is invalidated */
3924       common.x += 1;
3925       common.y += 1;
3926       common.width -= 2;
3927       common.height -= 2;
3928
3929       common_region = gdk_region_rectangle (&common);
3930
3931       gdk_region_subtract (invalid_region, common_region);
3932       gdk_region_destroy (common_region);
3933     }
3934
3935   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3936
3937   gdk_region_destroy (invalid_region);
3938
3939   tree_view->priv->rubber_band_x = x;
3940   tree_view->priv->rubber_band_y = y;
3941
3942   gtk_tree_view_update_rubber_band_selection (tree_view);
3943 }
3944
3945 static void
3946 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
3947                                 GdkRectangle *area)
3948 {
3949   cairo_t *cr;
3950   GdkRectangle rect;
3951   GdkRectangle rubber_rect;
3952
3953   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3954   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3955   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
3956   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
3957
3958   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
3959     return;
3960
3961   cr = gdk_cairo_create (tree_view->priv->bin_window);
3962   cairo_set_line_width (cr, 1.0);
3963
3964   cairo_set_source_rgba (cr,
3965                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3966                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3967                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
3968                          .25);
3969
3970   gdk_cairo_rectangle (cr, &rect);
3971   cairo_clip (cr);
3972   cairo_paint (cr);
3973
3974   cairo_set_source_rgb (cr,
3975                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
3976                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
3977                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
3978
3979   cairo_rectangle (cr,
3980                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
3981                    rubber_rect.width - 1, rubber_rect.height - 1);
3982   cairo_stroke (cr);
3983
3984   cairo_destroy (cr);
3985 }
3986
3987 static gboolean
3988 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
3989                                  GdkEventMotion *event)
3990 {
3991   GtkTreeView *tree_view;
3992   GtkRBTree *tree;
3993   GtkRBNode *node;
3994   gint new_y;
3995
3996   tree_view = (GtkTreeView *) widget;
3997
3998   if (tree_view->priv->tree == NULL)
3999     return FALSE;
4000
4001   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4002     {
4003       gtk_grab_add (GTK_WIDGET (tree_view));
4004       gtk_tree_view_update_rubber_band (tree_view);
4005
4006       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4007     }
4008   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4009     {
4010       gtk_tree_view_update_rubber_band (tree_view);
4011
4012       add_scroll_timeout (tree_view);
4013     }
4014
4015   /* only check for an initiated drag when a button is pressed */
4016   if (tree_view->priv->pressed_button >= 0
4017       && !tree_view->priv->rubber_band_status)
4018     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4019
4020   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4021   if (new_y < 0)
4022     new_y = 0;
4023
4024   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4025
4026   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4027   if ((tree_view->priv->button_pressed_node != NULL) &&
4028       (tree_view->priv->button_pressed_node != node))
4029     node = NULL;
4030
4031   prelight_or_select (tree_view, tree, node, event->x, event->y);
4032
4033   return TRUE;
4034 }
4035
4036 static gboolean
4037 gtk_tree_view_motion (GtkWidget      *widget,
4038                       GdkEventMotion *event)
4039 {
4040   GtkTreeView *tree_view;
4041
4042   tree_view = (GtkTreeView *) widget;
4043
4044   /* Resizing a column */
4045   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4046     return gtk_tree_view_motion_resize_column (widget, event);
4047
4048   /* Drag column */
4049   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4050     return gtk_tree_view_motion_drag_column (widget, event);
4051
4052   /* Sanity check it */
4053   if (event->window == tree_view->priv->bin_window)
4054     return gtk_tree_view_motion_bin_window (widget, event);
4055
4056   return FALSE;
4057 }
4058
4059 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4060  * the tree is empty.
4061  */
4062 static void
4063 invalidate_empty_focus (GtkTreeView *tree_view)
4064 {
4065   GdkRectangle area;
4066
4067   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4068     return;
4069
4070   area.x = 0;
4071   area.y = 0;
4072   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4073   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4074 }
4075
4076 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4077  * is empty.
4078  */
4079 static void
4080 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4081 {
4082   gint w, h;
4083
4084   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4085     return;
4086
4087   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4088
4089   w -= 2;
4090   h -= 2;
4091
4092   if (w > 0 && h > 0)
4093     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4094                      tree_view->priv->bin_window,
4095                      GTK_WIDGET_STATE (tree_view),
4096                      clip_area,
4097                      GTK_WIDGET (tree_view),
4098                      NULL,
4099                      1, 1, w, h);
4100 }
4101
4102 static void
4103 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4104                                GdkEventExpose *event,
4105                                gint            n_visible_columns)
4106 {
4107   GList *list = tree_view->priv->columns;
4108   gint i = 0;
4109   gint current_x = 0;
4110
4111   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4112       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4113     return;
4114
4115   /* Only draw the lines for visible rows and columns */
4116   for (list = tree_view->priv->columns; list; list = list->next, i++)
4117     {
4118       GtkTreeViewColumn *column = list->data;
4119
4120       /* We don't want a line for the last column */
4121       if (i == n_visible_columns - 1)
4122         break;
4123
4124       if (! column->visible)
4125         continue;
4126
4127       current_x += column->width;
4128
4129       gdk_draw_line (event->window,
4130                      tree_view->priv->grid_line_gc,
4131                      current_x - 1, 0,
4132                      current_x - 1, tree_view->priv->height);
4133     }
4134 }
4135
4136 /* Warning: Very scary function.
4137  * Modify at your own risk
4138  *
4139  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4140  * FIXME: It's not...
4141  */
4142 static gboolean
4143 gtk_tree_view_bin_expose (GtkWidget      *widget,
4144                           GdkEventExpose *event)
4145 {
4146   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4147   GtkTreePath *path;
4148   GtkRBTree *tree;
4149   GList *list;
4150   GtkRBNode *node;
4151   GtkRBNode *cursor = NULL;
4152   GtkRBTree *cursor_tree = NULL;
4153   GtkRBNode *drag_highlight = NULL;
4154   GtkRBTree *drag_highlight_tree = NULL;
4155   GtkTreeIter iter;
4156   gint new_y;
4157   gint y_offset, cell_offset;
4158   gint max_height;
4159   gint depth;
4160   GdkRectangle background_area;
4161   GdkRectangle cell_area;
4162   guint flags;
4163   gint highlight_x;
4164   gint expander_cell_width;
4165   gint bin_window_width;
4166   gint bin_window_height;
4167   GtkTreePath *cursor_path;
4168   GtkTreePath *drag_dest_path;
4169   GList *first_column, *last_column;
4170   gint vertical_separator;
4171   gint horizontal_separator;
4172   gint focus_line_width;
4173   gboolean allow_rules;
4174   gboolean has_special_cell;
4175   gboolean rtl;
4176   gint n_visible_columns;
4177   gint pointer_x, pointer_y;
4178   gint grid_line_width;
4179   gboolean got_pointer = FALSE;
4180   gboolean row_ending_details;
4181   gboolean draw_vgrid_lines, draw_hgrid_lines;
4182
4183   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4184
4185   gtk_widget_style_get (widget,
4186                         "horizontal-separator", &horizontal_separator,
4187                         "vertical-separator", &vertical_separator,
4188                         "allow-rules", &allow_rules,
4189                         "focus-line-width", &focus_line_width,
4190                         "row-ending-details", &row_ending_details,
4191                         NULL);
4192
4193   if (tree_view->priv->tree == NULL)
4194     {
4195       draw_empty_focus (tree_view, &event->area);
4196       return TRUE;
4197     }
4198
4199   /* clip event->area to the visible area */
4200   if (event->area.height < 0)
4201     return TRUE;
4202
4203   validate_visible_area (tree_view);
4204
4205   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4206
4207   if (new_y < 0)
4208     new_y = 0;
4209   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4210   gdk_drawable_get_size (tree_view->priv->bin_window,
4211                          &bin_window_width, &bin_window_height);
4212
4213   if (tree_view->priv->height < bin_window_height)
4214     {
4215       gtk_paint_flat_box (widget->style,
4216                           event->window,
4217                           widget->state,
4218                           GTK_SHADOW_NONE,
4219                           &event->area,
4220                           widget,
4221                           "cell_even",
4222                           0, tree_view->priv->height,
4223                           bin_window_width,
4224                           bin_window_height - tree_view->priv->height);
4225     }
4226
4227   if (node == NULL)
4228     return TRUE;
4229
4230   /* find the path for the node */
4231   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4232                                    tree,
4233                                    node);
4234   gtk_tree_model_get_iter (tree_view->priv->model,
4235                            &iter,
4236                            path);
4237   depth = gtk_tree_path_get_depth (path);
4238   gtk_tree_path_free (path);
4239
4240   cursor_path = NULL;
4241   drag_dest_path = NULL;
4242
4243   if (tree_view->priv->cursor)
4244     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4245
4246   if (cursor_path)
4247     _gtk_tree_view_find_node (tree_view, cursor_path,
4248                               &cursor_tree, &cursor);
4249
4250   if (tree_view->priv->drag_dest_row)
4251     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4252
4253   if (drag_dest_path)
4254     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4255                               &drag_highlight_tree, &drag_highlight);
4256
4257   draw_vgrid_lines =
4258     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4259     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4260   draw_hgrid_lines =
4261     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4262     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4263
4264   if (draw_vgrid_lines || draw_hgrid_lines)
4265     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4266
4267   n_visible_columns = 0;
4268   for (list = tree_view->priv->columns; list; list = list->next)
4269     {
4270       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4271         continue;
4272       n_visible_columns ++;
4273     }
4274
4275   /* Find the last column */
4276   for (last_column = g_list_last (tree_view->priv->columns);
4277        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4278        last_column = last_column->prev)
4279     ;
4280
4281   /* and the first */
4282   for (first_column = g_list_first (tree_view->priv->columns);
4283        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4284        first_column = first_column->next)
4285     ;
4286
4287   /* Actually process the expose event.  To do this, we want to
4288    * start at the first node of the event, and walk the tree in
4289    * order, drawing each successive node.
4290    */
4291
4292   do
4293     {
4294       gboolean parity;
4295       gboolean is_separator = FALSE;
4296       gboolean is_first = FALSE;
4297       gboolean is_last = FALSE;
4298
4299       is_separator = row_is_separator (tree_view, &iter, NULL);
4300
4301       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4302
4303       cell_offset = 0;
4304       highlight_x = 0; /* should match x coord of first cell */
4305       expander_cell_width = 0;
4306
4307       background_area.y = y_offset + event->area.y;
4308       background_area.height = max_height;
4309
4310       flags = 0;
4311
4312       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4313         flags |= GTK_CELL_RENDERER_PRELIT;
4314
4315       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4316         flags |= GTK_CELL_RENDERER_SELECTED;
4317
4318       parity = _gtk_rbtree_node_find_parity (tree, node);
4319
4320       /* we *need* to set cell data on all cells before the call
4321        * to _has_special_cell, else _has_special_cell() does not
4322        * return a correct value.
4323        */
4324       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4325            list;
4326            list = (rtl ? list->prev : list->next))
4327         {
4328           GtkTreeViewColumn *column = list->data;
4329           gtk_tree_view_column_cell_set_cell_data (column,
4330                                                    tree_view->priv->model,
4331                                                    &iter,
4332                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4333                                                    node->children?TRUE:FALSE);
4334         }
4335
4336       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4337
4338       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4339            list;
4340            list = (rtl ? list->prev : list->next))
4341         {
4342           GtkTreeViewColumn *column = list->data;
4343           const gchar *detail = NULL;
4344           GtkStateType state;
4345
4346           if (!column->visible)
4347             continue;
4348
4349           if (cell_offset > event->area.x + event->area.width ||
4350               cell_offset + column->width < event->area.x)
4351             {
4352               cell_offset += column->width;
4353               continue;
4354             }
4355
4356           if (column->show_sort_indicator)
4357             flags |= GTK_CELL_RENDERER_SORTED;
4358           else
4359             flags &= ~GTK_CELL_RENDERER_SORTED;
4360
4361           if (cursor == node)
4362             flags |= GTK_CELL_RENDERER_FOCUSED;
4363           else
4364             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4365
4366           background_area.x = cell_offset;
4367           background_area.width = column->width;
4368
4369           cell_area = background_area;
4370           cell_area.y += vertical_separator / 2;
4371           cell_area.x += horizontal_separator / 2;
4372           cell_area.height -= vertical_separator;
4373           cell_area.width -= horizontal_separator;
4374
4375           if (draw_vgrid_lines)
4376             {
4377               if (list == first_column)
4378                 {
4379                   cell_area.width -= grid_line_width / 2;
4380                 }
4381               else if (list == last_column)
4382                 {
4383                   cell_area.x += grid_line_width / 2;
4384                   cell_area.width -= grid_line_width / 2;
4385                 }
4386               else
4387                 {
4388                   cell_area.x += grid_line_width / 2;
4389                   cell_area.width -= grid_line_width;
4390                 }
4391             }
4392
4393           if (draw_hgrid_lines)
4394             {
4395               cell_area.y += grid_line_width / 2;
4396               cell_area.height -= grid_line_width;
4397             }
4398
4399           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4400             {
4401               cell_offset += column->width;
4402               continue;
4403             }
4404
4405           gtk_tree_view_column_cell_set_cell_data (column,
4406                                                    tree_view->priv->model,
4407                                                    &iter,
4408                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4409                                                    node->children?TRUE:FALSE);
4410
4411           /* Select the detail for drawing the cell.  relevant
4412            * factors are parity, sortedness, and whether to
4413            * display rules.
4414            */
4415           if (allow_rules && tree_view->priv->has_rules)
4416             {
4417               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4418                   n_visible_columns >= 3)
4419                 {
4420                   if (parity)
4421                     detail = "cell_odd_ruled_sorted";
4422                   else
4423                     detail = "cell_even_ruled_sorted";
4424                 }
4425               else
4426                 {
4427                   if (parity)
4428                     detail = "cell_odd_ruled";
4429                   else
4430                     detail = "cell_even_ruled";
4431                 }
4432             }
4433           else
4434             {
4435               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4436                   n_visible_columns >= 3)
4437                 {
4438                   if (parity)
4439                     detail = "cell_odd_sorted";
4440                   else
4441                     detail = "cell_even_sorted";
4442                 }
4443               else
4444                 {
4445                   if (parity)
4446                     detail = "cell_odd";
4447                   else
4448                     detail = "cell_even";
4449                 }
4450             }
4451
4452           g_assert (detail);
4453
4454           if (widget->state == GTK_STATE_INSENSITIVE)
4455             state = GTK_STATE_INSENSITIVE;
4456           else if (flags & GTK_CELL_RENDERER_SELECTED)
4457             state = GTK_STATE_SELECTED;
4458           else
4459             state = GTK_STATE_NORMAL;
4460
4461           /* Draw background */
4462           if (row_ending_details)
4463             {
4464               char new_detail[128];
4465
4466               is_first = (rtl ? !list->next : !list->prev);
4467               is_last = (rtl ? !list->prev : !list->next);
4468
4469               /* (I don't like the snprintfs either, but couldn't find a
4470                * less messy way).
4471                */
4472               if (is_first && is_last)
4473                 g_snprintf (new_detail, 127, "%s", detail);
4474               else if (is_first)
4475                 g_snprintf (new_detail, 127, "%s_start", detail);
4476               else if (is_last)
4477                 g_snprintf (new_detail, 127, "%s_end", detail);
4478               else
4479                 g_snprintf (new_detail, 128, "%s_middle", detail);
4480
4481               gtk_paint_flat_box (widget->style,
4482                                   event->window,
4483                                   state,
4484                                   GTK_SHADOW_NONE,
4485                                   &event->area,
4486                                   widget,
4487                                   new_detail,
4488                                   background_area.x,
4489                                   background_area.y,
4490                                   background_area.width,
4491                                   background_area.height);
4492             }
4493           else
4494             {
4495               gtk_paint_flat_box (widget->style,
4496                                   event->window,
4497                                   state,
4498                                   GTK_SHADOW_NONE,
4499                                   &event->area,
4500                                   widget,
4501                                   detail,
4502                                   background_area.x,
4503                                   background_area.y,
4504                                   background_area.width,
4505                                   background_area.height);
4506             }
4507
4508           if (draw_hgrid_lines)
4509             {
4510               if (background_area.y > 0)
4511                 gdk_draw_line (event->window,
4512                                tree_view->priv->grid_line_gc,
4513                                background_area.x, background_area.y,
4514                                background_area.x + background_area.width,
4515                                background_area.y);
4516
4517               if (y_offset + max_height >= event->area.height)
4518                 gdk_draw_line (event->window,
4519                                tree_view->priv->grid_line_gc,
4520                                background_area.x, background_area.y + max_height,
4521                                background_area.x + background_area.width,
4522                                background_area.y + max_height);
4523             }
4524
4525           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4526               tree_view->priv->tree_lines_enabled)
4527             {
4528               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4529                   && depth > 1)
4530                 {
4531                   gdk_draw_line (event->window,
4532                                  tree_view->priv->tree_line_gc,
4533                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4534                                  background_area.y + background_area.height / 2,
4535                                  background_area.x + tree_view->priv->expander_size * (depth - 1.1),
4536                                  background_area.y + background_area.height / 2);
4537                 }
4538               else if (depth > 1)
4539                 {
4540                   gdk_draw_line (event->window,
4541                                  tree_view->priv->tree_line_gc,
4542                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4543                                  background_area.y + background_area.height / 2,
4544                                  background_area.x + tree_view->priv->expander_size * (depth - 0.5),
4545                                  background_area.y + background_area.height / 2);
4546                 }
4547
4548               if (depth > 1)
4549                 {
4550                   gint i;
4551                   GtkRBNode *tmp_node;
4552                   GtkRBTree *tmp_tree;
4553
4554                   if (!_gtk_rbtree_next (tree, node))
4555                     gdk_draw_line (event->window,
4556                                    tree_view->priv->tree_line_gc,
4557                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4558                                    background_area.y,
4559                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4560                                    background_area.y + background_area.height / 2);
4561                   else
4562                     gdk_draw_line (event->window,
4563                                    tree_view->priv->tree_line_gc,
4564                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4565                                    background_area.y,
4566                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4567                                    background_area.y + background_area.height);
4568
4569                   tmp_node = tree->parent_node;
4570                   tmp_tree = tree->parent_tree;
4571
4572                   for (i = depth - 2; i > 0; i--)
4573                     {
4574                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4575                         gdk_draw_line (event->window,
4576                                        tree_view->priv->tree_line_gc,
4577                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4578                                        background_area.y,
4579                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4580                                        background_area.y + background_area.height);
4581
4582                       tmp_node = tmp_tree->parent_node;
4583                       tmp_tree = tmp_tree->parent_tree;
4584                     }
4585                 }
4586             }
4587
4588           if (gtk_tree_view_is_expander_column (tree_view, column))
4589             {
4590               if (!rtl)
4591                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4592               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4593
4594               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4595                 {
4596                   if (!rtl)
4597                     cell_area.x += depth * tree_view->priv->expander_size;
4598                   cell_area.width -= depth * tree_view->priv->expander_size;
4599                 }
4600
4601               /* If we have an expander column, the highlight underline
4602                * starts with that column, so that it indicates which
4603                * level of the tree we're dropping at.
4604                */
4605               highlight_x = cell_area.x;
4606               expander_cell_width = cell_area.width;
4607
4608               if (is_separator)
4609                 gtk_paint_hline (widget->style,
4610                                  event->window,
4611                                  state,
4612                                  &cell_area,
4613                                  widget,
4614                                  NULL,
4615                                  cell_area.x,
4616                                  cell_area.x + cell_area.width,
4617                                  cell_area.y + cell_area.height / 2);
4618               else
4619                 _gtk_tree_view_column_cell_render (column,
4620                                                    event->window,
4621                                                    &background_area,
4622                                                    &cell_area,
4623                                                    &event->area,
4624                                                    flags);
4625               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4626                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4627                 {
4628                   if (!got_pointer)
4629                     {
4630                       gdk_window_get_pointer (tree_view->priv->bin_window,
4631                                               &pointer_x, &pointer_y, NULL);
4632                       got_pointer = TRUE;
4633                     }
4634
4635                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4636                                             tree,
4637                                             node,
4638                                             pointer_x, pointer_y);
4639                 }
4640             }
4641           else
4642             {
4643               if (is_separator)
4644                 gtk_paint_hline (widget->style,
4645                                  event->window,
4646                                  state,
4647                                  &cell_area,
4648                                  widget,
4649                                  NULL,
4650                                  cell_area.x,
4651                                  cell_area.x + cell_area.width,
4652                                  cell_area.y + cell_area.height / 2);
4653               else
4654                 _gtk_tree_view_column_cell_render (column,
4655                                                    event->window,
4656                                                    &background_area,
4657                                                    &cell_area,
4658                                                    &event->area,
4659                                                    flags);
4660             }
4661           if (node == cursor && has_special_cell &&
4662               ((column == tree_view->priv->focus_column &&
4663                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4664                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4665                (column == tree_view->priv->edited_column)))
4666             {
4667               _gtk_tree_view_column_cell_draw_focus (column,
4668                                                      event->window,
4669                                                      &background_area,
4670                                                      &cell_area,
4671                                                      &event->area,
4672                                                      flags);
4673             }
4674           cell_offset += column->width;
4675         }
4676
4677       if (node == drag_highlight)
4678         {
4679           /* Draw indicator for the drop
4680            */
4681           gint highlight_y = -1;
4682           GtkRBTree *tree = NULL;
4683           GtkRBNode *node = NULL;
4684           gint width;
4685
4686           switch (tree_view->priv->drag_dest_pos)
4687             {
4688             case GTK_TREE_VIEW_DROP_BEFORE:
4689               highlight_y = background_area.y - 1;
4690               if (highlight_y < 0)
4691                       highlight_y = 0;
4692               break;
4693
4694             case GTK_TREE_VIEW_DROP_AFTER:
4695               highlight_y = background_area.y + background_area.height - 1;
4696               break;
4697
4698             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4699             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4700               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4701
4702               if (tree == NULL)
4703                 break;
4704               gdk_drawable_get_size (tree_view->priv->bin_window,
4705                                      &width, NULL);
4706
4707               if (row_ending_details)
4708                 gtk_paint_focus (widget->style,
4709                                  tree_view->priv->bin_window,
4710                                  GTK_WIDGET_STATE (widget),
4711                                  &event->area,
4712                                  widget,
4713                                  (is_first
4714                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4715                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4716                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4717                                  - focus_line_width / 2,
4718                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4719                                - focus_line_width + 1);
4720               else
4721                 gtk_paint_focus (widget->style,
4722                                  tree_view->priv->bin_window,
4723                                  GTK_WIDGET_STATE (widget),
4724                                  &event->area,
4725                                  widget,
4726                                  "treeview-drop-indicator",
4727                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4728                                  - focus_line_width / 2,
4729                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4730                                  - focus_line_width + 1);
4731               break;
4732             }
4733
4734           if (highlight_y >= 0)
4735             {
4736               gdk_draw_line (event->window,
4737                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4738                              rtl ? highlight_x + expander_cell_width : highlight_x,
4739                              highlight_y,
4740                              rtl ? 0 : bin_window_width,
4741                              highlight_y);
4742             }
4743         }
4744
4745       /* draw the big row-spanning focus rectangle, if needed */
4746       if (!has_special_cell && node == cursor &&
4747           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4748           GTK_WIDGET_HAS_FOCUS (widget))
4749         {
4750           gint tmp_y, tmp_height;
4751           gint width;
4752           GtkStateType focus_rect_state;
4753
4754           focus_rect_state =
4755             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4756             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4757              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4758               GTK_STATE_NORMAL));
4759
4760           gdk_drawable_get_size (tree_view->priv->bin_window,
4761                                  &width, NULL);
4762
4763           if (draw_hgrid_lines)
4764             {
4765               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4766               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4767             }
4768           else
4769             {
4770               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4771               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4772             }
4773
4774           if (row_ending_details)
4775             gtk_paint_focus (widget->style,
4776                              tree_view->priv->bin_window,
4777                              focus_rect_state,
4778                              &event->area,
4779                              widget,
4780                              (is_first
4781                               ? (is_last ? "treeview" : "treeview-left" )
4782                               : (is_last ? "treeview-right" : "treeview-middle" )),
4783                              0, tmp_y,
4784                              width, tmp_height);
4785           else
4786             gtk_paint_focus (widget->style,
4787                              tree_view->priv->bin_window,
4788                              focus_rect_state,
4789                              &event->area,
4790                              widget,
4791                              "treeview",
4792                              0, tmp_y,
4793                              width, tmp_height);
4794         }
4795
4796       y_offset += max_height;
4797       if (node->children)
4798         {
4799           GtkTreeIter parent = iter;
4800           gboolean has_child;
4801
4802           tree = node->children;
4803           node = tree->root;
4804
4805           g_assert (node != tree->nil);
4806
4807           while (node->left != tree->nil)
4808             node = node->left;
4809           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4810                                                     &iter,
4811                                                     &parent);
4812           depth++;
4813
4814           /* Sanity Check! */
4815           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4816         }
4817       else
4818         {
4819           gboolean done = FALSE;
4820
4821           do
4822             {
4823               node = _gtk_rbtree_next (tree, node);
4824               if (node != NULL)
4825                 {
4826                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4827                   done = TRUE;
4828
4829                   /* Sanity Check! */
4830                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4831                 }
4832               else
4833                 {
4834                   GtkTreeIter parent_iter = iter;
4835                   gboolean has_parent;
4836
4837                   node = tree->parent_node;
4838                   tree = tree->parent_tree;
4839                   if (tree == NULL)
4840                     /* we should go to done to free some memory */
4841                     goto done;
4842                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4843                                                            &iter,
4844                                                            &parent_iter);
4845                   depth--;
4846
4847                   /* Sanity check */
4848                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4849                 }
4850             }
4851           while (!done);
4852         }
4853     }
4854   while (y_offset < event->area.height);
4855
4856 done:
4857   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4858
4859  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4860    {
4861      GdkRectangle *rectangles;
4862      gint n_rectangles;
4863
4864      gdk_region_get_rectangles (event->region,
4865                                 &rectangles,
4866                                 &n_rectangles);
4867
4868      while (n_rectangles--)
4869        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4870
4871      g_free (rectangles);
4872    }
4873
4874   if (cursor_path)
4875     gtk_tree_path_free (cursor_path);
4876
4877   if (drag_dest_path)
4878     gtk_tree_path_free (drag_dest_path);
4879
4880   return FALSE;
4881 }
4882
4883 static gboolean
4884 gtk_tree_view_expose (GtkWidget      *widget,
4885                       GdkEventExpose *event)
4886 {
4887   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4888
4889   if (event->window == tree_view->priv->bin_window)
4890     {
4891       gboolean retval;
4892       GList *tmp_list;
4893
4894       retval = gtk_tree_view_bin_expose (widget, event);
4895
4896       /* We can't just chain up to Container::expose as it will try to send the
4897        * event to the headers, so we handle propagating it to our children
4898        * (eg. widgets being edited) ourselves.
4899        */
4900       tmp_list = tree_view->priv->children;
4901       while (tmp_list)
4902         {
4903           GtkTreeViewChild *child = tmp_list->data;
4904           tmp_list = tmp_list->next;
4905
4906           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4907         }
4908
4909       return retval;
4910     }
4911
4912   else if (event->window == tree_view->priv->header_window)
4913     {
4914       GList *list;
4915
4916       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4917         {
4918           GtkTreeViewColumn *column = list->data;
4919
4920           if (column == tree_view->priv->drag_column)
4921             continue;
4922
4923           if (column->visible)
4924             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4925                                             column->button,
4926                                             event);
4927         }
4928     }
4929   else if (event->window == tree_view->priv->drag_window)
4930     {
4931       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4932                                       tree_view->priv->drag_column->button,
4933                                       event);
4934     }
4935   return TRUE;
4936 }
4937
4938 enum
4939 {
4940   DROP_HOME,
4941   DROP_RIGHT,
4942   DROP_LEFT,
4943   DROP_END
4944 };
4945
4946 /* returns 0x1 when no column has been found -- yes it's hackish */
4947 static GtkTreeViewColumn *
4948 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
4949                                GtkTreeViewColumn *column,
4950                                gint               drop_position)
4951 {
4952   GtkTreeViewColumn *left_column = NULL;
4953   GtkTreeViewColumn *cur_column = NULL;
4954   GList *tmp_list;
4955
4956   if (!column->reorderable)
4957     return (GtkTreeViewColumn *)0x1;
4958
4959   switch (drop_position)
4960     {
4961       case DROP_HOME:
4962         /* find first column where we can drop */
4963         tmp_list = tree_view->priv->columns;
4964         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
4965           return (GtkTreeViewColumn *)0x1;
4966
4967         while (tmp_list)
4968           {
4969             g_assert (tmp_list);
4970
4971             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
4972             tmp_list = tmp_list->next;
4973
4974             if (left_column && left_column->visible == FALSE)
4975               continue;
4976
4977             if (!tree_view->priv->column_drop_func)
4978               return left_column;
4979
4980             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
4981               {
4982                 left_column = cur_column;
4983                 continue;
4984               }
4985
4986             return left_column;
4987           }
4988
4989         if (!tree_view->priv->column_drop_func)
4990           return left_column;
4991
4992         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
4993           return left_column;
4994         else
4995           return (GtkTreeViewColumn *)0x1;
4996         break;
4997
4998       case DROP_RIGHT:
4999         /* find first column after column where we can drop */
5000         tmp_list = tree_view->priv->columns;
5001
5002         for (; tmp_list; tmp_list = tmp_list->next)
5003           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5004             break;
5005
5006         if (!tmp_list || !tmp_list->next)
5007           return (GtkTreeViewColumn *)0x1;
5008
5009         tmp_list = tmp_list->next;
5010         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5011         tmp_list = tmp_list->next;
5012
5013         while (tmp_list)
5014           {
5015             g_assert (tmp_list);
5016
5017             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5018             tmp_list = tmp_list->next;
5019
5020             if (left_column && left_column->visible == FALSE)
5021               {
5022                 left_column = cur_column;
5023                 if (tmp_list)
5024                   tmp_list = tmp_list->next;
5025                 continue;
5026               }
5027
5028             if (!tree_view->priv->column_drop_func)
5029               return left_column;
5030
5031             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5032               {
5033                 left_column = cur_column;
5034                 continue;
5035               }
5036
5037             return left_column;
5038           }
5039
5040         if (!tree_view->priv->column_drop_func)
5041           return left_column;
5042
5043         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5044           return left_column;
5045         else
5046           return (GtkTreeViewColumn *)0x1;
5047         break;
5048
5049       case DROP_LEFT:
5050         /* find first column before column where we can drop */
5051         tmp_list = tree_view->priv->columns;
5052
5053         for (; tmp_list; tmp_list = tmp_list->next)
5054           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5055             break;
5056
5057         if (!tmp_list || !tmp_list->prev)
5058           return (GtkTreeViewColumn *)0x1;
5059
5060         tmp_list = tmp_list->prev;
5061         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5062         tmp_list = tmp_list->prev;
5063
5064         while (tmp_list)
5065           {
5066             g_assert (tmp_list);
5067
5068             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5069
5070             if (left_column && !left_column->visible)
5071               {
5072                 /*if (!tmp_list->prev)
5073                   return (GtkTreeViewColumn *)0x1;
5074                   */
5075 /*
5076                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5077                 tmp_list = tmp_list->prev->prev;
5078                 continue;*/
5079
5080                 cur_column = left_column;
5081                 if (tmp_list)
5082                   tmp_list = tmp_list->prev;
5083                 continue;
5084               }
5085
5086             if (!tree_view->priv->column_drop_func)
5087               return left_column;
5088
5089             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5090               return left_column;
5091
5092             cur_column = left_column;
5093             tmp_list = tmp_list->prev;
5094           }
5095
5096         if (!tree_view->priv->column_drop_func)
5097           return NULL;
5098
5099         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5100           return NULL;
5101         else
5102           return (GtkTreeViewColumn *)0x1;
5103         break;
5104
5105       case DROP_END:
5106         /* same as DROP_HOME case, but doing it backwards */
5107         tmp_list = g_list_last (tree_view->priv->columns);
5108         cur_column = NULL;
5109
5110         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5111           return (GtkTreeViewColumn *)0x1;
5112
5113         while (tmp_list)
5114           {
5115             g_assert (tmp_list);
5116
5117             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5118
5119             if (left_column && !left_column->visible)
5120               {
5121                 cur_column = left_column;
5122                 tmp_list = tmp_list->prev;
5123               }
5124
5125             if (!tree_view->priv->column_drop_func)
5126               return left_column;
5127
5128             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5129               return left_column;
5130
5131             cur_column = left_column;
5132             tmp_list = tmp_list->prev;
5133           }
5134
5135         if (!tree_view->priv->column_drop_func)
5136           return NULL;
5137
5138         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5139           return NULL;
5140         else
5141           return (GtkTreeViewColumn *)0x1;
5142         break;
5143     }
5144
5145   return (GtkTreeViewColumn *)0x1;
5146 }
5147
5148 static gboolean
5149 gtk_tree_view_key_press (GtkWidget   *widget,
5150                          GdkEventKey *event)
5151 {
5152   GtkTreeView *tree_view = (GtkTreeView *) widget;
5153
5154   if (tree_view->priv->rubber_band_status)
5155     {
5156       if (event->keyval == GDK_Escape)
5157         gtk_tree_view_stop_rubber_band (tree_view);
5158
5159       return TRUE;
5160     }
5161
5162   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5163     {
5164       if (event->keyval == GDK_Escape)
5165         {
5166           tree_view->priv->cur_reorder = NULL;
5167           gtk_tree_view_button_release_drag_column (widget, NULL);
5168         }
5169       return TRUE;
5170     }
5171
5172   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5173     {
5174       GList *focus_column;
5175       gboolean rtl;
5176
5177       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5178
5179       for (focus_column = tree_view->priv->columns;
5180            focus_column;
5181            focus_column = focus_column->next)
5182         {
5183           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5184
5185           if (GTK_WIDGET_HAS_FOCUS (column->button))
5186             break;
5187         }
5188
5189       if (focus_column &&
5190           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5191           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5192            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5193         {
5194           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5195
5196           if (!column->resizable)
5197             {
5198               gtk_widget_error_bell (widget);
5199               return TRUE;
5200             }
5201
5202           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5203               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5204             {
5205               gint old_width = column->resized_width;
5206
5207               column->resized_width = MAX (column->resized_width,
5208                                            column->width);
5209               column->resized_width -= 2;
5210               if (column->resized_width < 0)
5211                 column->resized_width = 0;
5212
5213               if (column->min_width == -1)
5214                 column->resized_width = MAX (column->button->requisition.width,
5215                                              column->resized_width);
5216               else
5217                 column->resized_width = MAX (column->min_width,
5218                                              column->resized_width);
5219
5220               if (column->max_width != -1)
5221                 column->resized_width = MIN (column->resized_width,
5222                                              column->max_width);
5223
5224               column->use_resized_width = TRUE;
5225
5226               if (column->resized_width != old_width)
5227                 gtk_widget_queue_resize (widget);
5228               else
5229                 gtk_widget_error_bell (widget);
5230             }
5231           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5232                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5233             {
5234               gint old_width = column->resized_width;
5235
5236               column->resized_width = MAX (column->resized_width,
5237                                            column->width);
5238               column->resized_width += 2;
5239
5240               if (column->max_width != -1)
5241                 column->resized_width = MIN (column->resized_width,
5242                                              column->max_width);
5243
5244               column->use_resized_width = TRUE;
5245
5246               if (column->resized_width != old_width)
5247                 gtk_widget_queue_resize (widget);
5248               else
5249                 gtk_widget_error_bell (widget);
5250             }
5251
5252           return TRUE;
5253         }
5254
5255       if (focus_column &&
5256           (event->state & GDK_MOD1_MASK) &&
5257           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5258            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5259            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5260            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5261         {
5262           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5263
5264           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5265               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5266             {
5267               GtkTreeViewColumn *col;
5268               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5269               if (col != (GtkTreeViewColumn *)0x1)
5270                 gtk_tree_view_move_column_after (tree_view, column, col);
5271               else
5272                 gtk_widget_error_bell (widget);
5273             }
5274           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5275                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5276             {
5277               GtkTreeViewColumn *col;
5278               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5279               if (col != (GtkTreeViewColumn *)0x1)
5280                 gtk_tree_view_move_column_after (tree_view, column, col);
5281               else
5282                 gtk_widget_error_bell (widget);
5283             }
5284           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5285             {
5286               GtkTreeViewColumn *col;
5287               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5288               if (col != (GtkTreeViewColumn *)0x1)
5289                 gtk_tree_view_move_column_after (tree_view, column, col);
5290               else
5291                 gtk_widget_error_bell (widget);
5292             }
5293           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5294             {
5295               GtkTreeViewColumn *col;
5296               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5297               if (col != (GtkTreeViewColumn *)0x1)
5298                 gtk_tree_view_move_column_after (tree_view, column, col);
5299               else
5300                 gtk_widget_error_bell (widget);
5301             }
5302
5303           return TRUE;
5304         }
5305     }
5306
5307   /* Chain up to the parent class.  It handles the keybindings. */
5308   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5309     return TRUE;
5310
5311   /* We pass the event to the search_entry.  If its text changes, then we start
5312    * the typeahead find capabilities. */
5313   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5314       && tree_view->priv->enable_search
5315       && !tree_view->priv->search_custom_entry_set)
5316     {
5317       GdkEvent *new_event;
5318       char *old_text;
5319       const char *new_text;
5320       gboolean retval;
5321       GdkScreen *screen;
5322       gboolean text_modified;
5323       gulong popup_menu_id;
5324
5325       gtk_tree_view_ensure_interactive_directory (tree_view);
5326
5327       /* Make a copy of the current text */
5328       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5329       new_event = gdk_event_copy ((GdkEvent *) event);
5330       g_object_unref (((GdkEventKey *) new_event)->window);
5331       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5332       gtk_widget_realize (tree_view->priv->search_window);
5333
5334       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5335                                         "popup_menu", G_CALLBACK (gtk_true), NULL);
5336
5337       /* Move the entry off screen */
5338       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5339       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5340                        gdk_screen_get_width (screen) + 1,
5341                        gdk_screen_get_height (screen) + 1);
5342       gtk_widget_show (tree_view->priv->search_window);
5343
5344       /* Send the event to the window.  If the preedit_changed signal is emitted
5345        * during this event, we will set priv->imcontext_changed  */
5346       tree_view->priv->imcontext_changed = FALSE;
5347       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5348       gdk_event_free (new_event);
5349       gtk_widget_hide (tree_view->priv->search_window);
5350
5351       g_signal_handler_disconnect (tree_view->priv->search_entry,
5352                                    popup_menu_id);
5353
5354       /* We check to make sure that the entry tried to handle the text, and that
5355        * the text has changed.
5356        */
5357       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5358       text_modified = strcmp (old_text, new_text) != 0;
5359       g_free (old_text);
5360       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5361           (retval && text_modified))               /* ...or the text was modified */
5362         {
5363           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5364             {
5365               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5366               return TRUE;
5367             }
5368           else
5369             {
5370               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5371               return FALSE;
5372             }
5373         }
5374     }
5375
5376   return FALSE;
5377 }
5378
5379 static gboolean
5380 gtk_tree_view_key_release (GtkWidget   *widget,
5381                            GdkEventKey *event)
5382 {
5383   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5384
5385   if (tree_view->priv->rubber_band_status)
5386     return TRUE;
5387
5388   return (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event) (widget, event);
5389 }
5390
5391 /* FIXME Is this function necessary? Can I get an enter_notify event
5392  * w/o either an expose event or a mouse motion event?
5393  */
5394 static gboolean
5395 gtk_tree_view_enter_notify (GtkWidget        *widget,
5396                             GdkEventCrossing *event)
5397 {
5398   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5399   GtkRBTree *tree;
5400   GtkRBNode *node;
5401   gint new_y;
5402
5403   /* Sanity check it */
5404   if (event->window != tree_view->priv->bin_window)
5405     return FALSE;
5406
5407   if (tree_view->priv->tree == NULL)
5408     return FALSE;
5409
5410   /* find the node internally */
5411   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5412   if (new_y < 0)
5413     new_y = 0;
5414   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5415
5416   if ((tree_view->priv->button_pressed_node == NULL) ||
5417       (tree_view->priv->button_pressed_node == node))
5418     prelight_or_select (tree_view, tree, node, event->x, event->y);
5419
5420   return TRUE;
5421 }
5422
5423 static gboolean
5424 gtk_tree_view_leave_notify (GtkWidget        *widget,
5425                             GdkEventCrossing *event)
5426 {
5427   GtkTreeView *tree_view;
5428
5429   if (event->mode == GDK_CROSSING_GRAB)
5430     return TRUE;
5431
5432   tree_view = GTK_TREE_VIEW (widget);
5433
5434   if (tree_view->priv->prelight_node)
5435     _gtk_tree_view_queue_draw_node (tree_view,
5436                                    tree_view->priv->prelight_tree,
5437                                    tree_view->priv->prelight_node,
5438                                    NULL);
5439
5440   prelight_or_select (tree_view,
5441                       NULL, NULL,
5442                       -1000, -1000); /* coords not possibly over an arrow */
5443
5444   return TRUE;
5445 }
5446
5447
5448 static gint
5449 gtk_tree_view_focus_out (GtkWidget     *widget,
5450                          GdkEventFocus *event)
5451 {
5452   GtkTreeView *tree_view;
5453
5454   tree_view = GTK_TREE_VIEW (widget);
5455
5456   gtk_widget_queue_draw (widget);
5457
5458   /* destroy interactive search dialog */
5459   if (tree_view->priv->search_window)
5460     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5461
5462   return FALSE;
5463 }
5464
5465
5466 /* Incremental Reflow
5467  */
5468
5469 static void
5470 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5471                                  GtkRBTree   *tree,
5472                                  GtkRBNode   *node)
5473 {
5474   gint y;
5475
5476   y = _gtk_rbtree_node_find_offset (tree, node)
5477     - tree_view->priv->vadjustment->value
5478     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5479
5480   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5481                               0, y,
5482                               GTK_WIDGET (tree_view)->allocation.width,
5483                               GTK_RBNODE_GET_HEIGHT (node));
5484 }
5485
5486 static gboolean
5487 node_is_visible (GtkTreeView *tree_view,
5488                  GtkRBTree   *tree,
5489                  GtkRBNode   *node)
5490 {
5491   int y;
5492   int height;
5493
5494   y = _gtk_rbtree_node_find_offset (tree, node);
5495   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5496
5497   if (y >= tree_view->priv->vadjustment->value &&
5498       y + height <= (tree_view->priv->vadjustment->value
5499                      + tree_view->priv->vadjustment->page_size))
5500     return TRUE;
5501
5502   return FALSE;
5503 }
5504
5505 /* Returns TRUE if it updated the size
5506  */
5507 static gboolean
5508 validate_row (GtkTreeView *tree_view,
5509               GtkRBTree   *tree,
5510               GtkRBNode   *node,
5511               GtkTreeIter *iter,
5512               GtkTreePath *path)
5513 {
5514   GtkTreeViewColumn *column;
5515   GList *list, *first_column, *last_column;
5516   gint height = 0;
5517   gint horizontal_separator;
5518   gint vertical_separator;
5519   gint focus_line_width;
5520   gint depth = gtk_tree_path_get_depth (path);
5521   gboolean retval = FALSE;
5522   gboolean is_separator = FALSE;
5523   gboolean draw_vgrid_lines, draw_hgrid_lines;
5524   gint focus_pad;
5525   gint grid_line_width;
5526
5527   /* double check the row needs validating */
5528   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5529       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5530     return FALSE;
5531
5532   is_separator = row_is_separator (tree_view, iter, NULL);
5533
5534   gtk_widget_style_get (GTK_WIDGET (tree_view),
5535                         "focus-padding", &focus_pad,
5536                         "focus-line-width", &focus_line_width,
5537                         "horizontal-separator", &horizontal_separator,
5538                         "vertical-separator", &vertical_separator,
5539                         "grid-line-width", &grid_line_width,
5540                         NULL);
5541
5542   draw_vgrid_lines =
5543     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5544     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5545   draw_hgrid_lines =
5546     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5547     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5548
5549   for (last_column = g_list_last (tree_view->priv->columns);
5550        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5551        last_column = last_column->prev)
5552     ;
5553
5554   for (first_column = g_list_first (tree_view->priv->columns);
5555        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5556        first_column = first_column->next)
5557     ;
5558
5559   for (list = tree_view->priv->columns; list; list = list->next)
5560     {
5561       gint tmp_width;
5562       gint tmp_height;
5563
5564       column = list->data;
5565
5566       if (! column->visible)
5567         continue;
5568
5569       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5570         continue;
5571
5572       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5573                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5574                                                node->children?TRUE:FALSE);
5575       gtk_tree_view_column_cell_get_size (column,
5576                                           NULL, NULL, NULL,
5577                                           &tmp_width, &tmp_height);
5578
5579       if (!is_separator)
5580         {
5581           tmp_height += vertical_separator;
5582           height = MAX (height, tmp_height);
5583           height = MAX (height, tree_view->priv->expander_size);
5584         }
5585       else
5586         height = 2 + 2 * focus_pad;
5587
5588       if (gtk_tree_view_is_expander_column (tree_view, column))
5589         {
5590           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5591
5592           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5593             tmp_width += depth * tree_view->priv->expander_size;
5594         }
5595       else
5596         tmp_width = tmp_width + horizontal_separator;
5597
5598       if (draw_vgrid_lines)
5599         {
5600           if (list->data == first_column || list->data == last_column)
5601             tmp_width += grid_line_width / 2.0;
5602           else
5603             tmp_width += grid_line_width;
5604         }
5605
5606       if (tmp_width > column->requested_width)
5607         {
5608           retval = TRUE;
5609           column->requested_width = tmp_width;
5610         }
5611     }
5612
5613   if (draw_hgrid_lines)
5614     height += grid_line_width;
5615
5616   if (height != GTK_RBNODE_GET_HEIGHT (node))
5617     {
5618       retval = TRUE;
5619       _gtk_rbtree_node_set_height (tree, node, height);
5620     }
5621   _gtk_rbtree_node_mark_valid (tree, node);
5622
5623   return retval;
5624 }
5625
5626
5627 static void
5628 validate_visible_area (GtkTreeView *tree_view)
5629 {
5630   GtkTreePath *path = NULL;
5631   GtkTreePath *above_path = NULL;
5632   GtkTreeIter iter;
5633   GtkRBTree *tree = NULL;
5634   GtkRBNode *node = NULL;
5635   gboolean need_redraw = FALSE;
5636   gboolean size_changed = FALSE;
5637   gint total_height;
5638   gint area_above = 0;
5639   gint area_below = 0;
5640
5641   if (tree_view->priv->tree == NULL)
5642     return;
5643
5644   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5645       tree_view->priv->scroll_to_path == NULL)
5646     return;
5647
5648   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5649
5650   if (total_height == 0)
5651     return;
5652
5653   /* First, we check to see if we need to scroll anywhere
5654    */
5655   if (tree_view->priv->scroll_to_path)
5656     {
5657       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5658       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5659         {
5660           /* we are going to scroll, and will update dy */
5661           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5662           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5663               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5664             {
5665               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5666               if (validate_row (tree_view, tree, node, &iter, path))
5667                 size_changed = TRUE;
5668             }
5669
5670           if (tree_view->priv->scroll_to_use_align)
5671             {
5672               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5673               area_above = (total_height - height) *
5674                 tree_view->priv->scroll_to_row_align;
5675               area_below = total_height - area_above - height;
5676               area_above = MAX (area_above, 0);
5677               area_below = MAX (area_below, 0);
5678             }
5679           else
5680             {
5681               /* two cases:
5682                * 1) row not visible
5683                * 2) row visible
5684                */
5685               gint dy;
5686               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5687
5688               dy = _gtk_rbtree_node_find_offset (tree, node);
5689
5690               if (dy >= tree_view->priv->vadjustment->value &&
5691                   dy + height <= (tree_view->priv->vadjustment->value
5692                                   + tree_view->priv->vadjustment->page_size))
5693                 {
5694                   /* row visible: keep the row at the same position */
5695                   area_above = dy - tree_view->priv->vadjustment->value;
5696                   area_below = (tree_view->priv->vadjustment->value +
5697                                 tree_view->priv->vadjustment->page_size)
5698                                - dy - height;
5699                 }
5700               else
5701                 {
5702                   /* row not visible */
5703                   if (dy >= 0
5704                       && dy + height <= tree_view->priv->vadjustment->page_size)
5705                     {
5706                       /* row at the beginning -- fixed */
5707                       area_above = dy;
5708                       area_below = tree_view->priv->vadjustment->page_size
5709                                    - area_above - height;
5710                     }
5711                   else if (dy >= (tree_view->priv->vadjustment->upper -
5712                                   tree_view->priv->vadjustment->page_size))
5713                     {
5714                       /* row at the end -- fixed */
5715                       area_above = dy - (tree_view->priv->vadjustment->upper -
5716                                    tree_view->priv->vadjustment->page_size);
5717                       area_below = tree_view->priv->vadjustment->page_size -
5718                                    area_above - height;
5719
5720                       if (area_below < 0)
5721                         {
5722                           area_above = tree_view->priv->vadjustment->page_size - height;
5723                           area_below = 0;
5724                         }
5725                     }
5726                   else
5727                     {
5728                       /* row somewhere in the middle, bring it to the top
5729                        * of the view
5730                        */
5731                       area_above = 0;
5732                       area_below = total_height - height;
5733                     }
5734                 }
5735             }
5736         }
5737       else
5738         /* the scroll to isn't valid; ignore it.
5739          */
5740         {
5741           if (tree_view->priv->scroll_to_path && !path)
5742             {
5743               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5744               tree_view->priv->scroll_to_path = NULL;
5745             }
5746           if (path)
5747             gtk_tree_path_free (path);
5748           path = NULL;
5749         }
5750     }
5751
5752   /* We didn't have a scroll_to set, so we just handle things normally
5753    */
5754   if (path == NULL)
5755     {
5756       gint offset;
5757
5758       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5759                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5760                                         &tree, &node);
5761       if (node == NULL)
5762         {
5763           /* In this case, nothing has been validated */
5764           path = gtk_tree_path_new_first ();
5765           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5766         }
5767       else
5768         {
5769           path = _gtk_tree_view_find_path (tree_view, tree, node);
5770           total_height += offset;
5771         }
5772
5773       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5774
5775       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5776           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5777         {
5778           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5779           if (validate_row (tree_view, tree, node, &iter, path))
5780             size_changed = TRUE;
5781         }
5782       area_above = 0;
5783       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5784     }
5785
5786   above_path = gtk_tree_path_copy (path);
5787
5788   /* if we do not validate any row above the new top_row, we will make sure
5789    * that the row immediately above top_row has been validated. (if we do not
5790    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5791    * when invalidated that row's height will be zero. and this will mess up
5792    * scrolling).
5793    */
5794   if (area_above == 0)
5795     {
5796       GtkRBTree *tmptree;
5797       GtkRBNode *tmpnode;
5798
5799       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5800       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5801
5802       if (tmpnode)
5803         {
5804           GtkTreePath *tmppath;
5805           GtkTreeIter tmpiter;
5806
5807           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5808           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5809
5810           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5811               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5812             {
5813               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5814               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5815                 size_changed = TRUE;
5816             }
5817
5818           gtk_tree_path_free (tmppath);
5819         }
5820     }
5821
5822   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5823    * backwards is much slower then forward, as there is no iter_prev function.
5824    * We go forwards first in case we run out of tree.  Then we go backwards to
5825    * fill out the top.
5826    */
5827   while (node && area_below > 0)
5828     {
5829       if (node->children)
5830         {
5831           GtkTreeIter parent = iter;
5832           gboolean has_child;
5833
5834           tree = node->children;
5835           node = tree->root;
5836
5837           g_assert (node != tree->nil);
5838
5839           while (node->left != tree->nil)
5840             node = node->left;
5841           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5842                                                     &iter,
5843                                                     &parent);
5844           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5845           gtk_tree_path_down (path);
5846         }
5847       else
5848         {
5849           gboolean done = FALSE;
5850           do
5851             {
5852               node = _gtk_rbtree_next (tree, node);
5853               if (node != NULL)
5854                 {
5855                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5856                   done = TRUE;
5857                   gtk_tree_path_next (path);
5858
5859                   /* Sanity Check! */
5860                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5861                 }
5862               else
5863                 {
5864                   GtkTreeIter parent_iter = iter;
5865                   gboolean has_parent;
5866
5867                   node = tree->parent_node;
5868                   tree = tree->parent_tree;
5869                   if (tree == NULL)
5870                     break;
5871                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5872                                                            &iter,
5873                                                            &parent_iter);
5874                   gtk_tree_path_up (path);
5875
5876                   /* Sanity check */
5877                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5878                 }
5879             }
5880           while (!done);
5881         }
5882
5883       if (!node)
5884         break;
5885
5886       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5887           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5888         {
5889           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5890           if (validate_row (tree_view, tree, node, &iter, path))
5891               size_changed = TRUE;
5892         }
5893
5894       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5895     }
5896   gtk_tree_path_free (path);
5897
5898   /* If we ran out of tree, and have extra area_below left, we need to add it
5899    * to area_above */
5900   if (area_below > 0)
5901     area_above += area_below;
5902
5903   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5904
5905   /* We walk backwards */
5906   while (area_above > 0)
5907     {
5908       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5909       if (! gtk_tree_path_prev (above_path) && node != NULL)
5910         {
5911           gtk_tree_path_free (above_path);
5912           above_path = _gtk_tree_view_find_path (tree_view, tree, node);
5913         }
5914       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
5915
5916       if (node == NULL)
5917         break;
5918
5919       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5920           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5921         {
5922           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5923           if (validate_row (tree_view, tree, node, &iter, above_path))
5924             size_changed = TRUE;
5925         }
5926       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5927     }
5928
5929   /* if we scrolled to a path, we need to set the dy here,
5930    * and sync the top row accordingly
5931    */
5932   if (tree_view->priv->scroll_to_path)
5933     {
5934       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
5935       gtk_tree_view_top_row_to_dy (tree_view);
5936
5937       need_redraw = TRUE;
5938     }
5939   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
5940     {
5941       /* when we are not scrolling, we should never set dy to something
5942        * else than zero. we update top_row to be in sync with dy = 0.
5943        */
5944       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
5945       gtk_tree_view_dy_to_top_row (tree_view);
5946     }
5947   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
5948     {
5949       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
5950       gtk_tree_view_dy_to_top_row (tree_view);
5951     }
5952   else
5953     gtk_tree_view_top_row_to_dy (tree_view);
5954
5955   /* update width/height and queue a resize */
5956   if (size_changed)
5957     {
5958       GtkRequisition requisition;
5959
5960       /* We temporarily guess a size, under the assumption that it will be the
5961        * same when we get our next size_allocate.  If we don't do this, we'll be
5962        * in an inconsistent state if we call top_row_to_dy. */
5963
5964       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
5965       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
5966       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
5967       gtk_adjustment_changed (tree_view->priv->hadjustment);
5968       gtk_adjustment_changed (tree_view->priv->vadjustment);
5969       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
5970     }
5971
5972   if (tree_view->priv->scroll_to_path)
5973     {
5974       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5975       tree_view->priv->scroll_to_path = NULL;
5976     }
5977
5978   if (above_path)
5979     gtk_tree_path_free (above_path);
5980
5981   if (tree_view->priv->scroll_to_column)
5982     {
5983       tree_view->priv->scroll_to_column = NULL;
5984     }
5985   if (need_redraw)
5986     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
5987 }
5988
5989 static void
5990 initialize_fixed_height_mode (GtkTreeView *tree_view)
5991 {
5992   if (!tree_view->priv->tree)
5993     return;
5994
5995   if (tree_view->priv->fixed_height < 0)
5996     {
5997       GtkTreeIter iter;
5998       GtkTreePath *path;
5999
6000       GtkRBTree *tree = NULL;
6001       GtkRBNode *node = NULL;
6002
6003       tree = tree_view->priv->tree;
6004       node = tree->root;
6005
6006       path = _gtk_tree_view_find_path (tree_view, tree, node);
6007       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6008
6009       validate_row (tree_view, tree, node, &iter, path);
6010
6011       gtk_tree_path_free (path);
6012
6013       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6014     }
6015
6016    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6017                                  tree_view->priv->fixed_height, TRUE);
6018 }
6019
6020 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6021  * the left-most uninvalidated node.  We then try walking right, validating
6022  * nodes.  Once we find a valid node, we repeat the previous process of finding
6023  * the first invalid node.
6024  */
6025
6026 static gboolean
6027 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6028 {
6029   GtkRBTree *tree = NULL;
6030   GtkRBNode *node = NULL;
6031   gboolean validated_area = FALSE;
6032   gint retval = TRUE;
6033   GtkTreePath *path = NULL;
6034   GtkTreeIter iter;
6035   gint i = 0;
6036
6037   gint prev_height = -1;
6038   gboolean fixed_height = TRUE;
6039
6040   g_assert (tree_view);
6041
6042   if (tree_view->priv->tree == NULL)
6043       return FALSE;
6044
6045   if (tree_view->priv->fixed_height_mode)
6046     {
6047       if (tree_view->priv->fixed_height < 0)
6048         initialize_fixed_height_mode (tree_view);
6049
6050       return FALSE;
6051     }
6052
6053   do
6054     {
6055       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6056         {
6057           retval = FALSE;
6058           goto done;
6059         }
6060
6061       if (path != NULL)
6062         {
6063           node = _gtk_rbtree_next (tree, node);
6064           if (node != NULL)
6065             {
6066               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6067               gtk_tree_path_next (path);
6068             }
6069           else
6070             {
6071               gtk_tree_path_free (path);
6072               path = NULL;
6073             }
6074         }
6075
6076       if (path == NULL)
6077         {
6078           tree = tree_view->priv->tree;
6079           node = tree_view->priv->tree->root;
6080
6081           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6082
6083           do
6084             {
6085               if (node->left != tree->nil &&
6086                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6087                 {
6088                   node = node->left;
6089                 }
6090               else if (node->right != tree->nil &&
6091                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6092                 {
6093                   node = node->right;
6094                 }
6095               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6096                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6097                 {
6098                   break;
6099                 }
6100               else if (node->children != NULL)
6101                 {
6102                   tree = node->children;
6103                   node = tree->root;
6104                 }
6105               else
6106                 /* RBTree corruption!  All bad */
6107                 g_assert_not_reached ();
6108             }
6109           while (TRUE);
6110           path = _gtk_tree_view_find_path (tree_view, tree, node);
6111           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6112         }
6113
6114       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6115                        validated_area;
6116
6117       if (!tree_view->priv->fixed_height_check)
6118         {
6119           gint height;
6120
6121           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6122           if (prev_height < 0)
6123             prev_height = height;
6124           else if (prev_height != height)
6125             fixed_height = FALSE;
6126         }
6127
6128       i++;
6129     }
6130   while (i < GTK_TREE_VIEW_NUM_ROWS_PER_IDLE);
6131
6132   if (!tree_view->priv->fixed_height_check)
6133    {
6134      if (fixed_height)
6135        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6136
6137      tree_view->priv->fixed_height_check = 1;
6138    }
6139
6140  done:
6141   if (validated_area)
6142     {
6143       GtkRequisition requisition;
6144       /* We temporarily guess a size, under the assumption that it will be the
6145        * same when we get our next size_allocate.  If we don't do this, we'll be
6146        * in an inconsistent state when we call top_row_to_dy. */
6147
6148       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6149       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6150       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6151       gtk_adjustment_changed (tree_view->priv->hadjustment);
6152       gtk_adjustment_changed (tree_view->priv->vadjustment);
6153
6154       if (queue_resize)
6155         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
6156     }
6157
6158   if (path) gtk_tree_path_free (path);
6159
6160   return retval;
6161 }
6162
6163 static gboolean
6164 validate_rows (GtkTreeView *tree_view)
6165 {
6166   gboolean retval;
6167
6168   retval = do_validate_rows (tree_view, TRUE);
6169
6170   if (! retval && tree_view->priv->validate_rows_timer)
6171     {
6172       g_source_remove (tree_view->priv->validate_rows_timer);
6173       tree_view->priv->validate_rows_timer = 0;
6174     }
6175
6176   return retval;
6177 }
6178
6179 static gboolean
6180 validate_rows_handler (GtkTreeView *tree_view)
6181 {
6182   gboolean retval;
6183
6184   retval = do_validate_rows (tree_view, TRUE);
6185   if (! retval && tree_view->priv->validate_rows_timer)
6186     {
6187       g_source_remove (tree_view->priv->validate_rows_timer);
6188       tree_view->priv->validate_rows_timer = 0;
6189     }
6190
6191   return retval;
6192 }
6193
6194 static gboolean
6195 do_presize_handler (GtkTreeView *tree_view)
6196 {
6197   if (tree_view->priv->mark_rows_col_dirty)
6198     {
6199       if (tree_view->priv->tree)
6200         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6201       tree_view->priv->mark_rows_col_dirty = FALSE;
6202     }
6203   validate_visible_area (tree_view);
6204   tree_view->priv->presize_handler_timer = 0;
6205
6206   if (tree_view->priv->fixed_height_mode)
6207     {
6208       GtkRequisition requisition;
6209
6210       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6211
6212       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6213       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6214       gtk_adjustment_changed (tree_view->priv->hadjustment);
6215       gtk_adjustment_changed (tree_view->priv->vadjustment);
6216       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6217     }
6218
6219   return FALSE;
6220 }
6221
6222 static gboolean
6223 presize_handler_callback (gpointer data)
6224 {
6225   do_presize_handler (GTK_TREE_VIEW (data));
6226
6227   return FALSE;
6228 }
6229
6230 static void
6231 install_presize_handler (GtkTreeView *tree_view)
6232 {
6233   if (! GTK_WIDGET_REALIZED (tree_view))
6234     return;
6235
6236   if (! tree_view->priv->presize_handler_timer)
6237     {
6238       tree_view->priv->presize_handler_timer =
6239         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6240     }
6241   if (! tree_view->priv->validate_rows_timer)
6242     {
6243       tree_view->priv->validate_rows_timer =
6244         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6245     }
6246 }
6247
6248 static gboolean
6249 scroll_sync_handler (GtkTreeView *tree_view)
6250 {
6251   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6252     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6253   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6254     gtk_tree_view_top_row_to_dy (tree_view);
6255   else
6256     gtk_tree_view_dy_to_top_row (tree_view);
6257
6258   tree_view->priv->scroll_sync_timer = 0;
6259
6260   return FALSE;
6261 }
6262
6263 static void
6264 install_scroll_sync_handler (GtkTreeView *tree_view)
6265 {
6266   if (! GTK_WIDGET_REALIZED (tree_view))
6267     return;
6268
6269   if (!tree_view->priv->scroll_sync_timer)
6270     {
6271       tree_view->priv->scroll_sync_timer =
6272         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6273     }
6274 }
6275
6276 static void
6277 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6278                            GtkTreePath *path,
6279                            gint         offset)
6280 {
6281   gtk_tree_row_reference_free (tree_view->priv->top_row);
6282
6283   if (!path)
6284     {
6285       tree_view->priv->top_row = NULL;
6286       tree_view->priv->top_row_dy = 0;
6287     }
6288   else
6289     {
6290       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6291       tree_view->priv->top_row_dy = offset;
6292     }
6293 }
6294
6295 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6296  * it's set to be NULL, and top_row_dy is 0;
6297  */
6298 static void
6299 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6300 {
6301   gint offset;
6302   GtkTreePath *path;
6303   GtkRBTree *tree;
6304   GtkRBNode *node;
6305
6306   if (tree_view->priv->tree == NULL)
6307     {
6308       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6309     }
6310   else
6311     {
6312       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6313                                         tree_view->priv->dy,
6314                                         &tree, &node);
6315
6316       if (tree == NULL)
6317         {
6318           tree_view->priv->top_row = NULL;
6319           tree_view->priv->top_row_dy = 0;
6320         }
6321       else
6322         {
6323           path = _gtk_tree_view_find_path (tree_view, tree, node);
6324           gtk_tree_view_set_top_row (tree_view, path, offset);
6325           gtk_tree_path_free (path);
6326         }
6327     }
6328 }
6329
6330 static void
6331 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6332 {
6333   GtkTreePath *path;
6334   GtkRBTree *tree;
6335   GtkRBNode *node;
6336   int new_dy;
6337
6338   if (tree_view->priv->top_row)
6339     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6340   else
6341     path = NULL;
6342
6343   if (!path)
6344     tree = NULL;
6345   else
6346     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6347
6348   if (path)
6349     gtk_tree_path_free (path);
6350
6351   if (tree == NULL)
6352     {
6353       /* keep dy and set new toprow */
6354       gtk_tree_row_reference_free (tree_view->priv->top_row);
6355       tree_view->priv->top_row = NULL;
6356       tree_view->priv->top_row_dy = 0;
6357       /* DO NOT install the idle handler */
6358       gtk_tree_view_dy_to_top_row (tree_view);
6359       return;
6360     }
6361
6362   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6363       < tree_view->priv->top_row_dy)
6364     {
6365       /* new top row -- do NOT install the idle handler */
6366       gtk_tree_view_dy_to_top_row (tree_view);
6367       return;
6368     }
6369
6370   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6371   new_dy += tree_view->priv->top_row_dy;
6372
6373   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6374     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6375
6376   new_dy = MAX (0, new_dy);
6377
6378   tree_view->priv->in_top_row_to_dy = TRUE;
6379   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6380   tree_view->priv->in_top_row_to_dy = FALSE;
6381 }
6382
6383
6384 void
6385 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6386 {
6387   tree_view->priv->mark_rows_col_dirty = TRUE;
6388
6389   install_presize_handler (tree_view);
6390 }
6391
6392 /*
6393  * This function works synchronously (due to the while (validate_rows...)
6394  * loop).
6395  *
6396  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6397  * here. You now need to check that yourself.
6398  */
6399 void
6400 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6401                                 GtkTreeViewColumn *column)
6402 {
6403   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6404   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6405
6406   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6407
6408   do_presize_handler (tree_view);
6409   while (validate_rows (tree_view));
6410
6411   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6412 }
6413
6414 /* Drag-and-drop */
6415
6416 static void
6417 set_source_row (GdkDragContext *context,
6418                 GtkTreeModel   *model,
6419                 GtkTreePath    *source_row)
6420 {
6421   g_object_set_data_full (G_OBJECT (context),
6422                           I_("gtk-tree-view-source-row"),
6423                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6424                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6425 }
6426
6427 static GtkTreePath*
6428 get_source_row (GdkDragContext *context)
6429 {
6430   GtkTreeRowReference *ref =
6431     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6432
6433   if (ref)
6434     return gtk_tree_row_reference_get_path (ref);
6435   else
6436     return NULL;
6437 }
6438
6439 typedef struct
6440 {
6441   GtkTreeRowReference *dest_row;
6442   guint                path_down_mode   : 1;
6443   guint                empty_view_drop  : 1;
6444   guint                drop_append_mode : 1;
6445 }
6446 DestRow;
6447
6448 static void
6449 dest_row_free (gpointer data)
6450 {
6451   DestRow *dr = (DestRow *)data;
6452
6453   gtk_tree_row_reference_free (dr->dest_row);
6454   g_slice_free (DestRow, dr);
6455 }
6456
6457 static void
6458 set_dest_row (GdkDragContext *context,
6459               GtkTreeModel   *model,
6460               GtkTreePath    *dest_row,
6461               gboolean        path_down_mode,
6462               gboolean        empty_view_drop,
6463               gboolean        drop_append_mode)
6464 {
6465   DestRow *dr;
6466
6467   if (!dest_row)
6468     {
6469       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6470                               NULL, NULL);
6471       return;
6472     }
6473
6474   dr = g_slice_new (DestRow);
6475
6476   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6477   dr->path_down_mode = path_down_mode != FALSE;
6478   dr->empty_view_drop = empty_view_drop != FALSE;
6479   dr->drop_append_mode = drop_append_mode != FALSE;
6480
6481   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6482                           dr, (GDestroyNotify) dest_row_free);
6483 }
6484
6485 static GtkTreePath*
6486 get_dest_row (GdkDragContext *context,
6487               gboolean       *path_down_mode)
6488 {
6489   DestRow *dr =
6490     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6491
6492   if (dr)
6493     {
6494       GtkTreePath *path = NULL;
6495
6496       if (path_down_mode)
6497         *path_down_mode = dr->path_down_mode;
6498
6499       if (dr->dest_row)
6500         path = gtk_tree_row_reference_get_path (dr->dest_row);
6501       else if (dr->empty_view_drop)
6502         path = gtk_tree_path_new_from_indices (0, -1);
6503       else
6504         path = NULL;
6505
6506       if (path && dr->drop_append_mode)
6507         gtk_tree_path_next (path);
6508
6509       return path;
6510     }
6511   else
6512     return NULL;
6513 }
6514
6515 /* Get/set whether drag_motion requested the drag data and
6516  * drag_data_received should thus not actually insert the data,
6517  * since the data doesn't result from a drop.
6518  */
6519 static void
6520 set_status_pending (GdkDragContext *context,
6521                     GdkDragAction   suggested_action)
6522 {
6523   g_object_set_data (G_OBJECT (context),
6524                      I_("gtk-tree-view-status-pending"),
6525                      GINT_TO_POINTER (suggested_action));
6526 }
6527
6528 static GdkDragAction
6529 get_status_pending (GdkDragContext *context)
6530 {
6531   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6532                                              "gtk-tree-view-status-pending"));
6533 }
6534
6535 static TreeViewDragInfo*
6536 get_info (GtkTreeView *tree_view)
6537 {
6538   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6539 }
6540
6541 static void
6542 destroy_info (TreeViewDragInfo *di)
6543 {
6544   g_slice_free (TreeViewDragInfo, di);
6545 }
6546
6547 static TreeViewDragInfo*
6548 ensure_info (GtkTreeView *tree_view)
6549 {
6550   TreeViewDragInfo *di;
6551
6552   di = get_info (tree_view);
6553
6554   if (di == NULL)
6555     {
6556       di = g_slice_new0 (TreeViewDragInfo);
6557
6558       g_object_set_data_full (G_OBJECT (tree_view),
6559                               I_("gtk-tree-view-drag-info"),
6560                               di,
6561                               (GDestroyNotify) destroy_info);
6562     }
6563
6564   return di;
6565 }
6566
6567 static void
6568 remove_info (GtkTreeView *tree_view)
6569 {
6570   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6571 }
6572
6573 #if 0
6574 static gint
6575 drag_scan_timeout (gpointer data)
6576 {
6577   GtkTreeView *tree_view;
6578   gint x, y;
6579   GdkModifierType state;
6580   GtkTreePath *path = NULL;
6581   GtkTreeViewColumn *column = NULL;
6582   GdkRectangle visible_rect;
6583
6584   GDK_THREADS_ENTER ();
6585
6586   tree_view = GTK_TREE_VIEW (data);
6587
6588   gdk_window_get_pointer (tree_view->priv->bin_window,
6589                           &x, &y, &state);
6590
6591   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6592
6593   /* See if we are near the edge. */
6594   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6595       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6596       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6597       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6598     {
6599       gtk_tree_view_get_path_at_pos (tree_view,
6600                                      tree_view->priv->bin_window,
6601                                      x, y,
6602                                      &path,
6603                                      &column,
6604                                      NULL,
6605                                      NULL);
6606
6607       if (path != NULL)
6608         {
6609           gtk_tree_view_scroll_to_cell (tree_view,
6610                                         path,
6611                                         column,
6612                                         TRUE,
6613                                         0.5, 0.5);
6614
6615           gtk_tree_path_free (path);
6616         }
6617     }
6618
6619   GDK_THREADS_LEAVE ();
6620
6621   return TRUE;
6622 }
6623 #endif /* 0 */
6624
6625 static void
6626 add_scroll_timeout (GtkTreeView *tree_view)
6627 {
6628   if (tree_view->priv->scroll_timeout == 0)
6629     {
6630       tree_view->priv->scroll_timeout =
6631         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6632     }
6633 }
6634
6635 static void
6636 remove_scroll_timeout (GtkTreeView *tree_view)
6637 {
6638   if (tree_view->priv->scroll_timeout != 0)
6639     {
6640       g_source_remove (tree_view->priv->scroll_timeout);
6641       tree_view->priv->scroll_timeout = 0;
6642     }
6643 }
6644
6645 static gboolean
6646 check_model_dnd (GtkTreeModel *model,
6647                  GType         required_iface,
6648                  const gchar  *signal)
6649 {
6650   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6651     {
6652       g_warning ("You must override the default '%s' handler "
6653                  "on GtkTreeView when using models that don't support "
6654                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6655                  "is to connect to '%s' and call "
6656                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6657                  "the default handler from running. Look at the source code "
6658                  "for the default handler in gtktreeview.c to get an idea what "
6659                  "your handler should do. (gtktreeview.c is in the GTK source "
6660                  "code.) If you're using GTK from a language other than C, "
6661                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6662                  signal, g_type_name (required_iface), signal);
6663       return FALSE;
6664     }
6665   else
6666     return TRUE;
6667 }
6668
6669 static void
6670 remove_open_timeout (GtkTreeView *tree_view)
6671 {
6672   if (tree_view->priv->open_dest_timeout != 0)
6673     {
6674       g_source_remove (tree_view->priv->open_dest_timeout);
6675       tree_view->priv->open_dest_timeout = 0;
6676     }
6677 }
6678
6679
6680 static gint
6681 open_row_timeout (gpointer data)
6682 {
6683   GtkTreeView *tree_view = data;
6684   GtkTreePath *dest_path = NULL;
6685   GtkTreeViewDropPosition pos;
6686   gboolean result = FALSE;
6687
6688   gtk_tree_view_get_drag_dest_row (tree_view,
6689                                    &dest_path,
6690                                    &pos);
6691
6692   if (dest_path &&
6693       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6694        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6695     {
6696       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6697       tree_view->priv->open_dest_timeout = 0;
6698
6699       gtk_tree_path_free (dest_path);
6700     }
6701   else
6702     {
6703       if (dest_path)
6704         gtk_tree_path_free (dest_path);
6705
6706       result = TRUE;
6707     }
6708
6709   return result;
6710 }
6711
6712 static gboolean
6713 scroll_row_timeout (gpointer data)
6714 {
6715   GtkTreeView *tree_view = data;
6716
6717   gtk_tree_view_vertical_autoscroll (tree_view);
6718
6719   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6720     gtk_tree_view_update_rubber_band (tree_view);
6721
6722   return TRUE;
6723 }
6724
6725 /* Returns TRUE if event should not be propagated to parent widgets */
6726 static gboolean
6727 set_destination_row (GtkTreeView    *tree_view,
6728                      GdkDragContext *context,
6729                      /* coordinates relative to the widget */
6730                      gint            x,
6731                      gint            y,
6732                      GdkDragAction  *suggested_action,
6733                      GdkAtom        *target)
6734 {
6735   GtkTreePath *path = NULL;
6736   GtkTreeViewDropPosition pos;
6737   GtkTreeViewDropPosition old_pos;
6738   TreeViewDragInfo *di;
6739   GtkWidget *widget;
6740   GtkTreePath *old_dest_path = NULL;
6741   gboolean can_drop = FALSE;
6742
6743   *suggested_action = 0;
6744   *target = GDK_NONE;
6745
6746   widget = GTK_WIDGET (tree_view);
6747
6748   di = get_info (tree_view);
6749
6750   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6751     {
6752       /* someone unset us as a drag dest, note that if
6753        * we return FALSE drag_leave isn't called
6754        */
6755
6756       gtk_tree_view_set_drag_dest_row (tree_view,
6757                                        NULL,
6758                                        GTK_TREE_VIEW_DROP_BEFORE);
6759
6760       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6761       remove_open_timeout (GTK_TREE_VIEW (widget));
6762
6763       return FALSE; /* no longer a drop site */
6764     }
6765
6766   *target = gtk_drag_dest_find_target (widget, context,
6767                                        gtk_drag_dest_get_target_list (widget));
6768   if (*target == GDK_NONE)
6769     {
6770       return FALSE;
6771     }
6772
6773   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6774                                           x, y,
6775                                           &path,
6776                                           &pos))
6777     {
6778       gint n_children;
6779       GtkTreeModel *model;
6780
6781       remove_open_timeout (tree_view);
6782
6783       /* the row got dropped on empty space, let's setup a special case
6784        */
6785
6786       if (path)
6787         gtk_tree_path_free (path);
6788
6789       model = gtk_tree_view_get_model (tree_view);
6790
6791       n_children = gtk_tree_model_iter_n_children (model, NULL);
6792       if (n_children)
6793         {
6794           pos = GTK_TREE_VIEW_DROP_AFTER;
6795           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6796         }
6797       else
6798         {
6799           pos = GTK_TREE_VIEW_DROP_BEFORE;
6800           path = gtk_tree_path_new_from_indices (0, -1);
6801         }
6802
6803       can_drop = TRUE;
6804
6805       goto out;
6806     }
6807
6808   g_assert (path);
6809
6810   /* If we left the current row's "open" zone, unset the timeout for
6811    * opening the row
6812    */
6813   gtk_tree_view_get_drag_dest_row (tree_view,
6814                                    &old_dest_path,
6815                                    &old_pos);
6816
6817   if (old_dest_path &&
6818       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6819        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6820          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6821     remove_open_timeout (tree_view);
6822
6823   if (old_dest_path)
6824     gtk_tree_path_free (old_dest_path);
6825
6826   if (TRUE /* FIXME if the location droppable predicate */)
6827     {
6828       can_drop = TRUE;
6829     }
6830
6831 out:
6832   if (can_drop)
6833     {
6834       GtkWidget *source_widget;
6835
6836       *suggested_action = context->suggested_action;
6837       source_widget = gtk_drag_get_source_widget (context);
6838
6839       if (source_widget == widget)
6840         {
6841           /* Default to MOVE, unless the user has
6842            * pressed ctrl or shift to affect available actions
6843            */
6844           if ((context->actions & GDK_ACTION_MOVE) != 0)
6845             *suggested_action = GDK_ACTION_MOVE;
6846         }
6847
6848       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6849                                        path, pos);
6850     }
6851   else
6852     {
6853       /* can't drop here */
6854       remove_open_timeout (tree_view);
6855
6856       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6857                                        NULL,
6858                                        GTK_TREE_VIEW_DROP_BEFORE);
6859     }
6860
6861   if (path)
6862     gtk_tree_path_free (path);
6863
6864   return TRUE;
6865 }
6866
6867 static GtkTreePath*
6868 get_logical_dest_row (GtkTreeView *tree_view,
6869                       gboolean    *path_down_mode,
6870                       gboolean    *drop_append_mode)
6871 {
6872   /* adjust path to point to the row the drop goes in front of */
6873   GtkTreePath *path = NULL;
6874   GtkTreeViewDropPosition pos;
6875
6876   g_return_val_if_fail (path_down_mode != NULL, NULL);
6877   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6878
6879   *path_down_mode = FALSE;
6880   *drop_append_mode = 0;
6881
6882   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6883
6884   if (path == NULL)
6885     return NULL;
6886
6887   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6888     ; /* do nothing */
6889   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6890            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6891     *path_down_mode = TRUE;
6892   else
6893     {
6894       GtkTreeIter iter;
6895       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6896
6897       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6898
6899       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6900           !gtk_tree_model_iter_next (model, &iter))
6901         *drop_append_mode = 1;
6902       else
6903         {
6904           *drop_append_mode = 0;
6905           gtk_tree_path_next (path);
6906         }
6907     }
6908
6909   return path;
6910 }
6911
6912 static gboolean
6913 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
6914                                         GdkEventMotion   *event)
6915 {
6916   GtkWidget *widget = GTK_WIDGET (tree_view);
6917   GdkDragContext *context;
6918   TreeViewDragInfo *di;
6919   GtkTreePath *path = NULL;
6920   gint button;
6921   gint cell_x, cell_y;
6922   GtkTreeModel *model;
6923   gboolean retval = FALSE;
6924
6925   di = get_info (tree_view);
6926
6927   if (di == NULL || !di->source_set)
6928     goto out;
6929
6930   if (tree_view->priv->pressed_button < 0)
6931     goto out;
6932
6933   if (!gtk_drag_check_threshold (widget,
6934                                  tree_view->priv->press_start_x,
6935                                  tree_view->priv->press_start_y,
6936                                  event->x, event->y))
6937     goto out;
6938
6939   model = gtk_tree_view_get_model (tree_view);
6940
6941   if (model == NULL)
6942     goto out;
6943
6944   button = tree_view->priv->pressed_button;
6945   tree_view->priv->pressed_button = -1;
6946
6947   gtk_tree_view_get_path_at_pos (tree_view,
6948                                  tree_view->priv->press_start_x,
6949                                  tree_view->priv->press_start_y,
6950                                  &path,
6951                                  NULL,
6952                                  &cell_x,
6953                                  &cell_y);
6954
6955   if (path == NULL)
6956     goto out;
6957
6958   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
6959       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
6960                                            path))
6961     goto out;
6962
6963   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
6964     goto out;
6965
6966   /* Now we can begin the drag */
6967
6968   retval = TRUE;
6969
6970   context = gtk_drag_begin (widget,
6971                             gtk_drag_source_get_target_list (widget),
6972                             di->source_actions,
6973                             button,
6974                             (GdkEvent*)event);
6975
6976   set_source_row (context, model, path);
6977
6978  out:
6979   if (path)
6980     gtk_tree_path_free (path);
6981
6982   return retval;
6983 }
6984
6985
6986 static void
6987 gtk_tree_view_drag_begin (GtkWidget      *widget,
6988                           GdkDragContext *context)
6989 {
6990   GtkTreeView *tree_view;
6991   GtkTreePath *path = NULL;
6992   gint cell_x, cell_y;
6993   GdkPixmap *row_pix;
6994   TreeViewDragInfo *di;
6995
6996   tree_view = GTK_TREE_VIEW (widget);
6997
6998   /* if the user uses a custom DND source impl, we don't set the icon here */
6999   di = get_info (tree_view);
7000
7001   if (di == NULL || !di->source_set)
7002     return;
7003
7004   gtk_tree_view_get_path_at_pos (tree_view,
7005                                  tree_view->priv->press_start_x,
7006                                  tree_view->priv->press_start_y,
7007                                  &path,
7008                                  NULL,
7009                                  &cell_x,
7010                                  &cell_y);
7011
7012   g_return_if_fail (path != NULL);
7013
7014   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7015                                                 path);
7016
7017   gtk_drag_set_icon_pixmap (context,
7018                             gdk_drawable_get_colormap (row_pix),
7019                             row_pix,
7020                             NULL,
7021                             /* the + 1 is for the black border in the icon */
7022                             tree_view->priv->press_start_x + 1,
7023                             cell_y + 1);
7024
7025   g_object_unref (row_pix);
7026   gtk_tree_path_free (path);
7027 }
7028
7029 static void
7030 gtk_tree_view_drag_end (GtkWidget      *widget,
7031                         GdkDragContext *context)
7032 {
7033   /* do nothing */
7034 }
7035
7036 /* Default signal implementations for the drag signals */
7037 static void
7038 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7039                              GdkDragContext   *context,
7040                              GtkSelectionData *selection_data,
7041                              guint             info,
7042                              guint             time)
7043 {
7044   GtkTreeView *tree_view;
7045   GtkTreeModel *model;
7046   TreeViewDragInfo *di;
7047   GtkTreePath *source_row;
7048
7049   tree_view = GTK_TREE_VIEW (widget);
7050
7051   model = gtk_tree_view_get_model (tree_view);
7052
7053   if (model == NULL)
7054     return;
7055
7056   di = get_info (GTK_TREE_VIEW (widget));
7057
7058   if (di == NULL)
7059     return;
7060
7061   source_row = get_source_row (context);
7062
7063   if (source_row == NULL)
7064     return;
7065
7066   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7067    * any model; for DragSource models there are some other targets
7068    * we also support.
7069    */
7070
7071   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7072       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7073                                           source_row,
7074                                           selection_data))
7075     goto done;
7076
7077   /* If drag_data_get does nothing, try providing row data. */
7078   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7079     {
7080       gtk_tree_set_row_drag_data (selection_data,
7081                                   model,
7082                                   source_row);
7083     }
7084
7085  done:
7086   gtk_tree_path_free (source_row);
7087 }
7088
7089
7090 static void
7091 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7092                                 GdkDragContext *context)
7093 {
7094   TreeViewDragInfo *di;
7095   GtkTreeModel *model;
7096   GtkTreeView *tree_view;
7097   GtkTreePath *source_row;
7098
7099   tree_view = GTK_TREE_VIEW (widget);
7100   model = gtk_tree_view_get_model (tree_view);
7101
7102   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7103     return;
7104
7105   di = get_info (tree_view);
7106
7107   if (di == NULL)
7108     return;
7109
7110   source_row = get_source_row (context);
7111
7112   if (source_row == NULL)
7113     return;
7114
7115   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7116                                          source_row);
7117
7118   gtk_tree_path_free (source_row);
7119
7120   set_source_row (context, NULL, NULL);
7121 }
7122
7123 static void
7124 gtk_tree_view_drag_leave (GtkWidget      *widget,
7125                           GdkDragContext *context,
7126                           guint             time)
7127 {
7128   /* unset any highlight row */
7129   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7130                                    NULL,
7131                                    GTK_TREE_VIEW_DROP_BEFORE);
7132
7133   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7134   remove_open_timeout (GTK_TREE_VIEW (widget));
7135 }
7136
7137
7138 static gboolean
7139 gtk_tree_view_drag_motion (GtkWidget        *widget,
7140                            GdkDragContext   *context,
7141                            /* coordinates relative to the widget */
7142                            gint              x,
7143                            gint              y,
7144                            guint             time)
7145 {
7146   gboolean empty;
7147   GtkTreePath *path = NULL;
7148   GtkTreeViewDropPosition pos;
7149   GtkTreeView *tree_view;
7150   GdkDragAction suggested_action = 0;
7151   GdkAtom target;
7152
7153   tree_view = GTK_TREE_VIEW (widget);
7154
7155   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7156     return FALSE;
7157
7158   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7159
7160   /* we only know this *after* set_desination_row */
7161   empty = tree_view->priv->empty_view_drop;
7162
7163   if (path == NULL && !empty)
7164     {
7165       /* Can't drop here. */
7166       gdk_drag_status (context, 0, time);
7167     }
7168   else
7169     {
7170       if (tree_view->priv->open_dest_timeout == 0 &&
7171           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7172            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7173         {
7174           tree_view->priv->open_dest_timeout =
7175             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7176         }
7177       else
7178         {
7179           add_scroll_timeout (tree_view);
7180         }
7181
7182       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7183         {
7184           /* Request data so we can use the source row when
7185            * determining whether to accept the drop
7186            */
7187           set_status_pending (context, suggested_action);
7188           gtk_drag_get_data (widget, context, target, time);
7189         }
7190       else
7191         {
7192           set_status_pending (context, 0);
7193           gdk_drag_status (context, suggested_action, time);
7194         }
7195     }
7196
7197   if (path)
7198     gtk_tree_path_free (path);
7199
7200   return TRUE;
7201 }
7202
7203
7204 static gboolean
7205 gtk_tree_view_drag_drop (GtkWidget        *widget,
7206                          GdkDragContext   *context,
7207                          /* coordinates relative to the widget */
7208                          gint              x,
7209                          gint              y,
7210                          guint             time)
7211 {
7212   GtkTreeView *tree_view;
7213   GtkTreePath *path;
7214   GdkDragAction suggested_action = 0;
7215   GdkAtom target = GDK_NONE;
7216   TreeViewDragInfo *di;
7217   GtkTreeModel *model;
7218   gboolean path_down_mode;
7219   gboolean drop_append_mode;
7220
7221   tree_view = GTK_TREE_VIEW (widget);
7222
7223   model = gtk_tree_view_get_model (tree_view);
7224
7225   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7226   remove_open_timeout (GTK_TREE_VIEW (widget));
7227
7228   di = get_info (tree_view);
7229
7230   if (di == NULL)
7231     return FALSE;
7232
7233   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7234     return FALSE;
7235
7236   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7237     return FALSE;
7238
7239   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7240
7241   if (target != GDK_NONE && path != NULL)
7242     {
7243       /* in case a motion had requested drag data, change things so we
7244        * treat drag data receives as a drop.
7245        */
7246       set_status_pending (context, 0);
7247       set_dest_row (context, model, path,
7248                     path_down_mode, tree_view->priv->empty_view_drop,
7249                     drop_append_mode);
7250     }
7251
7252   if (path)
7253     gtk_tree_path_free (path);
7254
7255   /* Unset this thing */
7256   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7257                                    NULL,
7258                                    GTK_TREE_VIEW_DROP_BEFORE);
7259
7260   if (target != GDK_NONE)
7261     {
7262       gtk_drag_get_data (widget, context, target, time);
7263       return TRUE;
7264     }
7265   else
7266     return FALSE;
7267 }
7268
7269 static void
7270 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7271                                   GdkDragContext   *context,
7272                                   /* coordinates relative to the widget */
7273                                   gint              x,
7274                                   gint              y,
7275                                   GtkSelectionData *selection_data,
7276                                   guint             info,
7277                                   guint             time)
7278 {
7279   GtkTreePath *path;
7280   TreeViewDragInfo *di;
7281   gboolean accepted = FALSE;
7282   GtkTreeModel *model;
7283   GtkTreeView *tree_view;
7284   GtkTreePath *dest_row;
7285   GdkDragAction suggested_action;
7286   gboolean path_down_mode;
7287   gboolean drop_append_mode;
7288
7289   tree_view = GTK_TREE_VIEW (widget);
7290
7291   model = gtk_tree_view_get_model (tree_view);
7292
7293   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7294     return;
7295
7296   di = get_info (tree_view);
7297
7298   if (di == NULL)
7299     return;
7300
7301   suggested_action = get_status_pending (context);
7302
7303   if (suggested_action)
7304     {
7305       /* We are getting this data due to a request in drag_motion,
7306        * rather than due to a request in drag_drop, so we are just
7307        * supposed to call drag_status, not actually paste in the
7308        * data.
7309        */
7310       path = get_logical_dest_row (tree_view, &path_down_mode,
7311                                    &drop_append_mode);
7312
7313       if (path == NULL)
7314         suggested_action = 0;
7315       else if (path_down_mode)
7316         gtk_tree_path_down (path);
7317
7318       if (suggested_action)
7319         {
7320           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7321                                                      path,
7322                                                      selection_data))
7323             {
7324               if (path_down_mode)
7325                 {
7326                   path_down_mode = FALSE;
7327                   gtk_tree_path_up (path);
7328
7329                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7330                                                              path,
7331                                                              selection_data))
7332                     suggested_action = 0;
7333                 }
7334               else
7335                 suggested_action = 0;
7336             }
7337         }
7338
7339       gdk_drag_status (context, suggested_action, time);
7340
7341       if (path)
7342         gtk_tree_path_free (path);
7343
7344       /* If you can't drop, remove user drop indicator until the next motion */
7345       if (suggested_action == 0)
7346         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7347                                          NULL,
7348                                          GTK_TREE_VIEW_DROP_BEFORE);
7349
7350       return;
7351     }
7352
7353   dest_row = get_dest_row (context, &path_down_mode);
7354
7355   if (dest_row == NULL)
7356     return;
7357
7358   if (selection_data->length >= 0)
7359     {
7360       if (path_down_mode)
7361         {
7362           gtk_tree_path_down (dest_row);
7363           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7364                                                      dest_row, selection_data))
7365             gtk_tree_path_up (dest_row);
7366         }
7367     }
7368
7369   if (selection_data->length >= 0)
7370     {
7371       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7372                                                  dest_row,
7373                                                  selection_data))
7374         accepted = TRUE;
7375     }
7376
7377   gtk_drag_finish (context,
7378                    accepted,
7379                    (context->action == GDK_ACTION_MOVE),
7380                    time);
7381
7382   if (gtk_tree_path_get_depth (dest_row) == 1
7383       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7384     {
7385       /* special special case drag to "0", scroll to first item */
7386       if (!tree_view->priv->scroll_to_path)
7387         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7388     }
7389
7390   gtk_tree_path_free (dest_row);
7391
7392   /* drop dest_row */
7393   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7394 }
7395
7396
7397
7398 /* GtkContainer Methods
7399  */
7400
7401
7402 static void
7403 gtk_tree_view_remove (GtkContainer *container,
7404                       GtkWidget    *widget)
7405 {
7406   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7407   GtkTreeViewChild *child = NULL;
7408   GList *tmp_list;
7409
7410   tmp_list = tree_view->priv->children;
7411   while (tmp_list)
7412     {
7413       child = tmp_list->data;
7414       if (child->widget == widget)
7415         {
7416           gtk_widget_unparent (widget);
7417
7418           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7419           g_list_free_1 (tmp_list);
7420           g_slice_free (GtkTreeViewChild, child);
7421           return;
7422         }
7423
7424       tmp_list = tmp_list->next;
7425     }
7426
7427   tmp_list = tree_view->priv->columns;
7428
7429   while (tmp_list)
7430     {
7431       GtkTreeViewColumn *column;
7432       column = tmp_list->data;
7433       if (column->button == widget)
7434         {
7435           gtk_widget_unparent (widget);
7436           return;
7437         }
7438       tmp_list = tmp_list->next;
7439     }
7440 }
7441
7442 static void
7443 gtk_tree_view_forall (GtkContainer *container,
7444                       gboolean      include_internals,
7445                       GtkCallback   callback,
7446                       gpointer      callback_data)
7447 {
7448   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7449   GtkTreeViewChild *child = NULL;
7450   GtkTreeViewColumn *column;
7451   GList *tmp_list;
7452
7453   tmp_list = tree_view->priv->children;
7454   while (tmp_list)
7455     {
7456       child = tmp_list->data;
7457       tmp_list = tmp_list->next;
7458
7459       (* callback) (child->widget, callback_data);
7460     }
7461   if (include_internals == FALSE)
7462     return;
7463
7464   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7465     {
7466       column = tmp_list->data;
7467
7468       if (column->button)
7469         (* callback) (column->button, callback_data);
7470     }
7471 }
7472
7473 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7474  * cells. If so we draw one big row-spanning focus rectangle.
7475  */
7476 static gboolean
7477 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7478 {
7479   GList *list;
7480
7481   for (list = tree_view->priv->columns; list; list = list->next)
7482     {
7483       if (!((GtkTreeViewColumn *)list->data)->visible)
7484         continue;
7485       if (_gtk_tree_view_column_count_special_cells (list->data))
7486         return TRUE;
7487     }
7488
7489   return FALSE;
7490 }
7491
7492 static void
7493 column_sizing_notify (GObject    *object,
7494                       GParamSpec *pspec,
7495                       gpointer    data)
7496 {
7497   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7498
7499   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7500     /* disable fixed height mode */
7501     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7502 }
7503
7504 /**
7505  * gtk_tree_view_set_fixed_height_mode:
7506  * @tree_view: a #GtkTreeView
7507  * @enable: %TRUE to enable fixed height mode
7508  *
7509  * Enables or disables the fixed height mode of @tree_view.
7510  * Fixed height mode speeds up #GtkTreeView by assuming that all
7511  * rows have the same height.
7512  * Only enable this option if all rows are the same height and all
7513  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7514  *
7515  * Since: 2.6
7516  **/
7517 void
7518 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7519                                      gboolean     enable)
7520 {
7521   GList *l;
7522
7523   enable = enable != FALSE;
7524
7525   if (enable == tree_view->priv->fixed_height_mode)
7526     return;
7527
7528   if (!enable)
7529     {
7530       tree_view->priv->fixed_height_mode = 0;
7531       tree_view->priv->fixed_height = -1;
7532
7533       /* force a revalidation */
7534       install_presize_handler (tree_view);
7535     }
7536   else
7537     {
7538       /* make sure all columns are of type FIXED */
7539       for (l = tree_view->priv->columns; l; l = l->next)
7540         {
7541           GtkTreeViewColumn *c = l->data;
7542
7543           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7544         }
7545
7546       /* yes, we really have to do this is in a separate loop */
7547       for (l = tree_view->priv->columns; l; l = l->next)
7548         g_signal_connect (l->data, "notify::sizing",
7549                           G_CALLBACK (column_sizing_notify), tree_view);
7550
7551       tree_view->priv->fixed_height_mode = 1;
7552       tree_view->priv->fixed_height = -1;
7553
7554       if (tree_view->priv->tree)
7555         initialize_fixed_height_mode (tree_view);
7556     }
7557
7558   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7559 }
7560
7561 /**
7562  * gtk_tree_view_get_fixed_height_mode:
7563  * @tree_view: a #GtkTreeView
7564  *
7565  * Returns whether fixed height mode is turned on for @tree_view.
7566  *
7567  * Return value: %TRUE if @tree_view is in fixed height mode
7568  *
7569  * Since: 2.6
7570  **/
7571 gboolean
7572 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7573 {
7574   return tree_view->priv->fixed_height_mode;
7575 }
7576
7577 /* Returns TRUE if the focus is within the headers, after the focus operation is
7578  * done
7579  */
7580 static gboolean
7581 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7582                             GtkDirectionType  dir,
7583                             gboolean          clamp_column_visible)
7584 {
7585   GtkWidget *focus_child;
7586
7587   GList *last_column, *first_column;
7588   GList *tmp_list;
7589   gboolean rtl;
7590
7591   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7592     return FALSE;
7593
7594   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7595
7596   first_column = tree_view->priv->columns;
7597   while (first_column)
7598     {
7599       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7600           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7601           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7602            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7603         break;
7604       first_column = first_column->next;
7605     }
7606
7607   /* No headers are visible, or are focusable.  We can't focus in or out.
7608    */
7609   if (first_column == NULL)
7610     return FALSE;
7611
7612   last_column = g_list_last (tree_view->priv->columns);
7613   while (last_column)
7614     {
7615       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7616           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7617           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7618            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7619         break;
7620       last_column = last_column->prev;
7621     }
7622
7623
7624   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7625
7626   switch (dir)
7627     {
7628     case GTK_DIR_TAB_BACKWARD:
7629     case GTK_DIR_TAB_FORWARD:
7630     case GTK_DIR_UP:
7631     case GTK_DIR_DOWN:
7632       if (focus_child == NULL)
7633         {
7634           if (tree_view->priv->focus_column != NULL)
7635             focus_child = tree_view->priv->focus_column->button;
7636           else
7637             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7638           gtk_widget_grab_focus (focus_child);
7639           break;
7640         }
7641       return FALSE;
7642
7643     case GTK_DIR_LEFT:
7644     case GTK_DIR_RIGHT:
7645       if (focus_child == NULL)
7646         {
7647           if (tree_view->priv->focus_column != NULL)
7648             focus_child = tree_view->priv->focus_column->button;
7649           else if (dir == GTK_DIR_LEFT)
7650             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7651           else
7652             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7653           gtk_widget_grab_focus (focus_child);
7654           break;
7655         }
7656
7657       if (gtk_widget_child_focus (focus_child, dir))
7658         {
7659           /* The focus moves inside the button. */
7660           /* This is probably a great example of bad UI */
7661           break;
7662         }
7663
7664       /* We need to move the focus among the row of buttons. */
7665       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7666         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7667           break;
7668
7669       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7670           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7671         {
7672           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7673           break;
7674         }
7675
7676       while (tmp_list)
7677         {
7678           GtkTreeViewColumn *column;
7679
7680           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7681             tmp_list = tmp_list->next;
7682           else
7683             tmp_list = tmp_list->prev;
7684
7685           if (tmp_list == NULL)
7686             {
7687               g_warning ("Internal button not found");
7688               break;
7689             }
7690           column = tmp_list->data;
7691           if (column->button &&
7692               column->visible &&
7693               GTK_WIDGET_CAN_FOCUS (column->button))
7694             {
7695               focus_child = column->button;
7696               gtk_widget_grab_focus (column->button);
7697               break;
7698             }
7699         }
7700       break;
7701     default:
7702       g_assert_not_reached ();
7703       break;
7704     }
7705
7706   /* if focus child is non-null, we assume it's been set to the current focus child
7707    */
7708   if (focus_child)
7709     {
7710       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7711         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7712           {
7713             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7714             break;
7715           }
7716
7717       if (clamp_column_visible)
7718         {
7719           gtk_tree_view_clamp_column_visible (tree_view,
7720                                               tree_view->priv->focus_column,
7721                                               FALSE);
7722         }
7723     }
7724
7725   return (focus_child != NULL);
7726 }
7727
7728 /* This function returns in 'path' the first focusable path, if the given path
7729  * is already focusable, it's the returned one.
7730  */
7731 static gboolean
7732 search_first_focusable_path (GtkTreeView  *tree_view,
7733                              GtkTreePath **path,
7734                              gboolean      search_forward,
7735                              GtkRBTree   **new_tree,
7736                              GtkRBNode   **new_node)
7737 {
7738   GtkRBTree *tree = NULL;
7739   GtkRBNode *node = NULL;
7740
7741   if (!path || !*path)
7742     return FALSE;
7743
7744   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7745
7746   if (!tree || !node)
7747     return FALSE;
7748
7749   while (node && row_is_separator (tree_view, NULL, *path))
7750     {
7751       if (search_forward)
7752         _gtk_rbtree_next_full (tree, node, &tree, &node);
7753       else
7754         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7755
7756       if (*path)
7757         gtk_tree_path_free (*path);
7758
7759       if (node)
7760         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7761       else
7762         *path = NULL;
7763     }
7764
7765   if (new_tree)
7766     *new_tree = tree;
7767
7768   if (new_node)
7769     *new_node = node;
7770
7771   return (*path != NULL);
7772 }
7773
7774 static gint
7775 gtk_tree_view_focus (GtkWidget        *widget,
7776                      GtkDirectionType  direction)
7777 {
7778   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7779   GtkContainer *container = GTK_CONTAINER (widget);
7780   GtkWidget *focus_child;
7781
7782   if (!GTK_WIDGET_IS_SENSITIVE (container))
7783     return FALSE;
7784
7785   focus_child = container->focus_child;
7786
7787   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7788   /* Case 1.  Headers currently have focus. */
7789   if (focus_child)
7790     {
7791       switch (direction)
7792         {
7793         case GTK_DIR_LEFT:
7794         case GTK_DIR_RIGHT:
7795           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7796           return TRUE;
7797         case GTK_DIR_TAB_BACKWARD:
7798         case GTK_DIR_UP:
7799           return FALSE;
7800         case GTK_DIR_TAB_FORWARD:
7801         case GTK_DIR_DOWN:
7802           gtk_widget_grab_focus (widget);
7803           return TRUE;
7804         default:
7805           g_assert_not_reached ();
7806           return FALSE;
7807         }
7808     }
7809
7810   /* Case 2. We don't have focus at all. */
7811   if (!GTK_WIDGET_HAS_FOCUS (container))
7812     {
7813       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7814         gtk_widget_grab_focus (widget);
7815       return TRUE;
7816     }
7817
7818   /* Case 3. We have focus already. */
7819   if (direction == GTK_DIR_TAB_BACKWARD)
7820     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7821   else if (direction == GTK_DIR_TAB_FORWARD)
7822     return FALSE;
7823
7824   /* Other directions caught by the keybindings */
7825   gtk_widget_grab_focus (widget);
7826   return TRUE;
7827 }
7828
7829 static void
7830 gtk_tree_view_grab_focus (GtkWidget *widget)
7831 {
7832   (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus) (widget);
7833
7834   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7835 }
7836
7837 static void
7838 gtk_tree_view_style_set (GtkWidget *widget,
7839                          GtkStyle *previous_style)
7840 {
7841   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7842   GList *list;
7843   GtkTreeViewColumn *column;
7844
7845   if (GTK_WIDGET_REALIZED (widget))
7846     {
7847       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7848       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7849       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7850
7851       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7852       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7853     }
7854
7855   gtk_widget_style_get (widget,
7856                         "expander-size", &tree_view->priv->expander_size,
7857                         NULL);
7858   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7859
7860   for (list = tree_view->priv->columns; list; list = list->next)
7861     {
7862       column = list->data;
7863       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7864     }
7865
7866   tree_view->priv->fixed_height = -1;
7867   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7868
7869   gtk_widget_queue_resize (widget);
7870 }
7871
7872
7873 static void
7874 gtk_tree_view_set_focus_child (GtkContainer *container,
7875                                GtkWidget    *child)
7876 {
7877   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7878   GList *list;
7879
7880   for (list = tree_view->priv->columns; list; list = list->next)
7881     {
7882       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7883         {
7884           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7885           break;
7886         }
7887     }
7888
7889   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7890 }
7891
7892 static void
7893 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7894                                GtkAdjustment *hadj,
7895                                GtkAdjustment *vadj)
7896 {
7897   gboolean need_adjust = FALSE;
7898
7899   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
7900
7901   if (hadj)
7902     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
7903   else
7904     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7905   if (vadj)
7906     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
7907   else
7908     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7909
7910   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
7911     {
7912       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
7913                                             gtk_tree_view_adjustment_changed,
7914                                             tree_view);
7915       g_object_unref (tree_view->priv->hadjustment);
7916     }
7917
7918   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
7919     {
7920       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
7921                                             gtk_tree_view_adjustment_changed,
7922                                             tree_view);
7923       g_object_unref (tree_view->priv->vadjustment);
7924     }
7925
7926   if (tree_view->priv->hadjustment != hadj)
7927     {
7928       tree_view->priv->hadjustment = hadj;
7929       g_object_ref_sink (tree_view->priv->hadjustment);
7930
7931       g_signal_connect (tree_view->priv->hadjustment, "value_changed",
7932                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7933                         tree_view);
7934       need_adjust = TRUE;
7935     }
7936
7937   if (tree_view->priv->vadjustment != vadj)
7938     {
7939       tree_view->priv->vadjustment = vadj;
7940       g_object_ref_sink (tree_view->priv->vadjustment);
7941
7942       g_signal_connect (tree_view->priv->vadjustment, "value_changed",
7943                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7944                         tree_view);
7945       need_adjust = TRUE;
7946     }
7947
7948   if (need_adjust)
7949     gtk_tree_view_adjustment_changed (NULL, tree_view);
7950 }
7951
7952
7953 static gboolean
7954 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
7955                                 GtkMovementStep    step,
7956                                 gint               count)
7957 {
7958   GdkModifierType state;
7959
7960   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
7961   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
7962                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
7963                         step == GTK_MOVEMENT_DISPLAY_LINES ||
7964                         step == GTK_MOVEMENT_PAGES ||
7965                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
7966
7967   if (tree_view->priv->tree == NULL)
7968     return FALSE;
7969   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
7970     return FALSE;
7971
7972   gtk_tree_view_stop_editing (tree_view, FALSE);
7973   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
7974   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
7975
7976   if (gtk_get_current_event_state (&state))
7977     {
7978       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
7979         tree_view->priv->ctrl_pressed = TRUE;
7980       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
7981         tree_view->priv->shift_pressed = TRUE;
7982     }
7983   /* else we assume not pressed */
7984
7985   switch (step)
7986     {
7987       /* currently we make no distinction.  When we go bi-di, we need to */
7988     case GTK_MOVEMENT_LOGICAL_POSITIONS:
7989     case GTK_MOVEMENT_VISUAL_POSITIONS:
7990       gtk_tree_view_move_cursor_left_right (tree_view, count);
7991       break;
7992     case GTK_MOVEMENT_DISPLAY_LINES:
7993       gtk_tree_view_move_cursor_up_down (tree_view, count);
7994       break;
7995     case GTK_MOVEMENT_PAGES:
7996       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
7997       break;
7998     case GTK_MOVEMENT_BUFFER_ENDS:
7999       gtk_tree_view_move_cursor_start_end (tree_view, count);
8000       break;
8001     default:
8002       g_assert_not_reached ();
8003     }
8004
8005   tree_view->priv->ctrl_pressed = FALSE;
8006   tree_view->priv->shift_pressed = FALSE;
8007
8008   return TRUE;
8009 }
8010
8011 static void
8012 gtk_tree_view_put (GtkTreeView *tree_view,
8013                    GtkWidget   *child_widget,
8014                    /* in bin_window coordinates */
8015                    gint         x,
8016                    gint         y,
8017                    gint         width,
8018                    gint         height)
8019 {
8020   GtkTreeViewChild *child;
8021
8022   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8023   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8024
8025   child = g_slice_new (GtkTreeViewChild);
8026
8027   child->widget = child_widget;
8028   child->x = x;
8029   child->y = y;
8030   child->width = width;
8031   child->height = height;
8032
8033   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8034
8035   if (GTK_WIDGET_REALIZED (tree_view))
8036     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8037
8038   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8039 }
8040
8041 void
8042 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8043                                   GtkWidget   *widget,
8044                                   /* in tree coordinates */
8045                                   gint         x,
8046                                   gint         y,
8047                                   gint         width,
8048                                   gint         height)
8049 {
8050   GtkTreeViewChild *child = NULL;
8051   GList *list;
8052   GdkRectangle allocation;
8053
8054   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8055   g_return_if_fail (GTK_IS_WIDGET (widget));
8056
8057   for (list = tree_view->priv->children; list; list = list->next)
8058     {
8059       if (((GtkTreeViewChild *)list->data)->widget == widget)
8060         {
8061           child = list->data;
8062           break;
8063         }
8064     }
8065   if (child == NULL)
8066     return;
8067
8068   allocation.x = child->x = x;
8069   allocation.y = child->y = y;
8070   allocation.width = child->width = width;
8071   allocation.height = child->height = height;
8072
8073   if (GTK_WIDGET_REALIZED (widget))
8074     gtk_widget_size_allocate (widget, &allocation);
8075 }
8076
8077
8078 /* TreeModel Callbacks
8079  */
8080
8081 static void
8082 gtk_tree_view_row_changed (GtkTreeModel *model,
8083                            GtkTreePath  *path,
8084                            GtkTreeIter  *iter,
8085                            gpointer      data)
8086 {
8087   GtkTreeView *tree_view = (GtkTreeView *)data;
8088   GtkRBTree *tree;
8089   GtkRBNode *node;
8090   gboolean free_path = FALSE;
8091   GList *list;
8092   GtkTreePath *cursor_path;
8093
8094   g_return_if_fail (path != NULL || iter != NULL);
8095
8096   if (tree_view->priv->cursor != NULL)
8097     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8098   else
8099     cursor_path = NULL;
8100
8101   if (tree_view->priv->edited_column &&
8102       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8103     gtk_tree_view_stop_editing (tree_view, TRUE);
8104
8105   if (cursor_path != NULL)
8106     gtk_tree_path_free (cursor_path);
8107
8108   if (path == NULL)
8109     {
8110       path = gtk_tree_model_get_path (model, iter);
8111       free_path = TRUE;
8112     }
8113   else if (iter == NULL)
8114     gtk_tree_model_get_iter (model, iter, path);
8115
8116   if (_gtk_tree_view_find_node (tree_view,
8117                                 path,
8118                                 &tree,
8119                                 &node))
8120     /* We aren't actually showing the node */
8121     goto done;
8122
8123   if (tree == NULL)
8124     goto done;
8125
8126   if (tree_view->priv->fixed_height_mode
8127       && tree_view->priv->fixed_height >= 0)
8128     {
8129       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8130       if (GTK_WIDGET_REALIZED (tree_view))
8131         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8132     }
8133   else
8134     {
8135       _gtk_rbtree_node_mark_invalid (tree, node);
8136       for (list = tree_view->priv->columns; list; list = list->next)
8137         {
8138           GtkTreeViewColumn *column;
8139
8140           column = list->data;
8141           if (! column->visible)
8142             continue;
8143
8144           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8145             {
8146               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8147             }
8148         }
8149     }
8150
8151  done:
8152   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8153     install_presize_handler (tree_view);
8154   if (free_path)
8155     gtk_tree_path_free (path);
8156 }
8157
8158 static void
8159 gtk_tree_view_row_inserted (GtkTreeModel *model,
8160                             GtkTreePath  *path,
8161                             GtkTreeIter  *iter,
8162                             gpointer      data)
8163 {
8164   GtkTreeView *tree_view = (GtkTreeView *) data;
8165   gint *indices;
8166   GtkRBTree *tmptree, *tree;
8167   GtkRBNode *tmpnode = NULL;
8168   gint depth;
8169   gint i = 0;
8170   gint height;
8171   gboolean free_path = FALSE;
8172   gboolean node_visible = TRUE;
8173
8174   g_return_if_fail (path != NULL || iter != NULL);
8175
8176   if (tree_view->priv->fixed_height_mode
8177       && tree_view->priv->fixed_height >= 0)
8178     height = tree_view->priv->fixed_height;
8179   else
8180     height = 0;
8181
8182   if (path == NULL)
8183     {
8184       path = gtk_tree_model_get_path (model, iter);
8185       free_path = TRUE;
8186     }
8187   else if (iter == NULL)
8188     gtk_tree_model_get_iter (model, iter, path);
8189
8190   if (tree_view->priv->tree == NULL)
8191     tree_view->priv->tree = _gtk_rbtree_new ();
8192
8193   tmptree = tree = tree_view->priv->tree;
8194
8195   /* Update all row-references */
8196   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8197   depth = gtk_tree_path_get_depth (path);
8198   indices = gtk_tree_path_get_indices (path);
8199
8200   /* First, find the parent tree */
8201   while (i < depth - 1)
8202     {
8203       if (tmptree == NULL)
8204         {
8205           /* We aren't showing the node */
8206           node_visible = FALSE;
8207           goto done;
8208         }
8209
8210       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8211       if (tmpnode == NULL)
8212         {
8213           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8214                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8215                      "before the parent was inserted.");
8216           goto done;
8217         }
8218       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8219         {
8220           /* FIXME enforce correct behavior on model, probably */
8221           /* In theory, the model should have emitted has_child_toggled here.  We
8222            * try to catch it anyway, just to be safe, in case the model hasn't.
8223            */
8224           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8225                                                            tree,
8226                                                            tmpnode);
8227           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8228           gtk_tree_path_free (tmppath);
8229           goto done;
8230         }
8231
8232       tmptree = tmpnode->children;
8233       tree = tmptree;
8234       i++;
8235     }
8236
8237   if (tree == NULL)
8238     {
8239       node_visible = FALSE;
8240       goto done;
8241     }
8242
8243   /* ref the node */
8244   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8245   if (indices[depth - 1] == 0)
8246     {
8247       tmpnode = _gtk_rbtree_find_count (tree, 1);
8248       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8249     }
8250   else
8251     {
8252       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8253       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8254     }
8255
8256  done:
8257   if (height > 0)
8258     {
8259       if (tree)
8260         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8261
8262       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8263         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8264       else
8265         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8266     }
8267   else
8268     install_presize_handler (tree_view);
8269   if (free_path)
8270     gtk_tree_path_free (path);
8271 }
8272
8273 static void
8274 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8275                                      GtkTreePath  *path,
8276                                      GtkTreeIter  *iter,
8277                                      gpointer      data)
8278 {
8279   GtkTreeView *tree_view = (GtkTreeView *)data;
8280   GtkTreeIter real_iter;
8281   gboolean has_child;
8282   GtkRBTree *tree;
8283   GtkRBNode *node;
8284   gboolean free_path = FALSE;
8285
8286   g_return_if_fail (path != NULL || iter != NULL);
8287
8288   if (iter)
8289     real_iter = *iter;
8290
8291   if (path == NULL)
8292     {
8293       path = gtk_tree_model_get_path (model, iter);
8294       free_path = TRUE;
8295     }
8296   else if (iter == NULL)
8297     gtk_tree_model_get_iter (model, &real_iter, path);
8298
8299   if (_gtk_tree_view_find_node (tree_view,
8300                                 path,
8301                                 &tree,
8302                                 &node))
8303     /* We aren't actually showing the node */
8304     goto done;
8305
8306   if (tree == NULL)
8307     goto done;
8308
8309   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8310   /* Sanity check.
8311    */
8312   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8313     goto done;
8314
8315   if (has_child)
8316     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8317   else
8318     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8319
8320   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8321     {
8322       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8323       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8324         {
8325           GList *list;
8326
8327           for (list = tree_view->priv->columns; list; list = list->next)
8328             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8329               {
8330                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8331                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8332                 break;
8333               }
8334         }
8335       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8336     }
8337   else
8338     {
8339       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8340     }
8341
8342  done:
8343   if (free_path)
8344     gtk_tree_path_free (path);
8345 }
8346
8347 static void
8348 count_children_helper (GtkRBTree *tree,
8349                        GtkRBNode *node,
8350                        gpointer   data)
8351 {
8352   if (node->children)
8353     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8354   (*((gint *)data))++;
8355 }
8356
8357 static void
8358 check_selection_helper (GtkRBTree *tree,
8359                         GtkRBNode *node,
8360                         gpointer   data)
8361 {
8362   gint *value = (gint *)data;
8363
8364   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8365
8366   if (node->children && !*value)
8367     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8368 }
8369
8370 static void
8371 gtk_tree_view_row_deleted (GtkTreeModel *model,
8372                            GtkTreePath  *path,
8373                            gpointer      data)
8374 {
8375   GtkTreeView *tree_view = (GtkTreeView *)data;
8376   GtkRBTree *tree;
8377   GtkRBNode *node;
8378   GList *list;
8379   gint selection_changed = FALSE;
8380
8381   g_return_if_fail (path != NULL);
8382
8383   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8384
8385   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8386     return;
8387
8388   if (tree == NULL)
8389     return;
8390
8391   /* check if the selection has been changed */
8392   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8393                         check_selection_helper, &selection_changed);
8394
8395   for (list = tree_view->priv->columns; list; list = list->next)
8396     if (((GtkTreeViewColumn *)list->data)->visible &&
8397         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8398       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8399
8400   /* Ensure we don't have a dangling pointer to a dead node */
8401   ensure_unprelighted (tree_view);
8402
8403   /* Cancel editting if we've started */
8404   gtk_tree_view_stop_editing (tree_view, TRUE);
8405
8406   /* If we have a node expanded/collapsed timeout, remove it */
8407   remove_expand_collapse_timeout (tree_view);
8408
8409   if (tree_view->priv->destroy_count_func)
8410     {
8411       gint child_count = 0;
8412       if (node->children)
8413         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8414       (* tree_view->priv->destroy_count_func) (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8415     }
8416
8417   if (tree->root->count == 1)
8418     {
8419       if (tree_view->priv->tree == tree)
8420         tree_view->priv->tree = NULL;
8421
8422       _gtk_rbtree_remove (tree);
8423     }
8424   else
8425     {
8426       _gtk_rbtree_remove_node (tree, node);
8427     }
8428
8429   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8430     {
8431       gtk_tree_row_reference_free (tree_view->priv->top_row);
8432       tree_view->priv->top_row = NULL;
8433     }
8434
8435   install_scroll_sync_handler (tree_view);
8436
8437   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8438
8439   if (selection_changed)
8440     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8441 }
8442
8443 static void
8444 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8445                               GtkTreePath  *parent,
8446                               GtkTreeIter  *iter,
8447                               gint         *new_order,
8448                               gpointer      data)
8449 {
8450   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8451   GtkRBTree *tree;
8452   GtkRBNode *node;
8453   gint len;
8454
8455   len = gtk_tree_model_iter_n_children (model, iter);
8456
8457   if (len < 2)
8458     return;
8459
8460   gtk_tree_row_reference_reordered (G_OBJECT (data),
8461                                     parent,
8462                                     iter,
8463                                     new_order);
8464
8465   if (_gtk_tree_view_find_node (tree_view,
8466                                 parent,
8467                                 &tree,
8468                                 &node))
8469     return;
8470
8471   /* We need to special case the parent path */
8472   if (tree == NULL)
8473     tree = tree_view->priv->tree;
8474   else
8475     tree = node->children;
8476
8477   if (tree == NULL)
8478     return;
8479
8480   if (tree_view->priv->edited_column)
8481     gtk_tree_view_stop_editing (tree_view, TRUE);
8482
8483   /* we need to be unprelighted */
8484   ensure_unprelighted (tree_view);
8485
8486   /* clear the timeout */
8487   cancel_arrow_animation (tree_view);
8488
8489   _gtk_rbtree_reorder (tree, new_order, len);
8490
8491   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8492
8493   gtk_tree_view_dy_to_top_row (tree_view);
8494 }
8495
8496
8497 /* Internal tree functions
8498  */
8499
8500
8501 static void
8502 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8503                                      GtkRBTree         *tree,
8504                                      GtkTreeViewColumn *column,
8505                                      gint              *x1,
8506                                      gint              *x2)
8507 {
8508   GtkTreeViewColumn *tmp_column = NULL;
8509   gint total_width;
8510   GList *list;
8511   gboolean rtl;
8512
8513   if (x1)
8514     *x1 = 0;
8515
8516   if (x2)
8517     *x2 = 0;
8518
8519   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8520
8521   total_width = 0;
8522   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8523        list;
8524        list = (rtl ? list->prev : list->next))
8525     {
8526       tmp_column = list->data;
8527
8528       if (tmp_column == column)
8529         break;
8530
8531       if (tmp_column->visible)
8532         total_width += tmp_column->width;
8533     }
8534
8535   if (tmp_column != column)
8536     {
8537       g_warning (G_STRLOC": passed-in column isn't in the tree");
8538       return;
8539     }
8540
8541   if (x1)
8542     *x1 = total_width;
8543
8544   if (x2)
8545     {
8546       if (column->visible)
8547         *x2 = total_width + column->width;
8548       else
8549         *x2 = total_width; /* width of 0 */
8550     }
8551 }
8552 static void
8553 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8554                                 GtkRBTree   *tree,
8555                                 gint        *x1,
8556                                 gint        *x2)
8557 {
8558   gint x_offset = 0;
8559   GList *list;
8560   GtkTreeViewColumn *tmp_column = NULL;
8561   gint total_width;
8562   gboolean indent_expanders;
8563   gboolean rtl;
8564
8565   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8566
8567   total_width = 0;
8568   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8569        list;
8570        list = (rtl ? list->prev : list->next))
8571     {
8572       tmp_column = list->data;
8573
8574       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8575         {
8576           if (rtl)
8577             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8578           else
8579             x_offset = total_width;
8580           break;
8581         }
8582
8583       if (tmp_column->visible)
8584         total_width += tmp_column->width;
8585     }
8586
8587   gtk_widget_style_get (GTK_WIDGET (tree_view),
8588                         "indent-expanders", &indent_expanders,
8589                         NULL);
8590
8591   if (indent_expanders)
8592     {
8593       if (rtl)
8594         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8595       else
8596         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8597     }
8598
8599   *x1 = x_offset;
8600
8601   if (tmp_column && tmp_column->visible)
8602     /* +1 because x2 isn't included in the range. */
8603     *x2 = *x1 + tree_view->priv->expander_size + 1;
8604   else
8605     *x2 = *x1;
8606 }
8607
8608 static void
8609 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8610                           GtkRBTree   *tree,
8611                           GtkTreeIter *iter,
8612                           gint         depth,
8613                           gboolean     recurse)
8614 {
8615   GtkRBNode *temp = NULL;
8616   GtkTreePath *path = NULL;
8617   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8618
8619   do
8620     {
8621       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8622       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8623
8624       if (tree_view->priv->fixed_height > 0)
8625         {
8626           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8627             {
8628               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8629               _gtk_rbtree_node_mark_valid (tree, temp);
8630             }
8631         }
8632
8633       if (is_list)
8634         continue;
8635
8636       if (recurse)
8637         {
8638           GtkTreeIter child;
8639
8640           if (!path)
8641             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8642           else
8643             gtk_tree_path_next (path);
8644
8645           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8646             {
8647               gboolean expand;
8648
8649               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8650
8651               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8652                   && !expand)
8653                 {
8654                   temp->children = _gtk_rbtree_new ();
8655                   temp->children->parent_tree = tree;
8656                   temp->children->parent_node = temp;
8657                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8658                 }
8659             }
8660         }
8661
8662       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8663         {
8664           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8665             temp->flags ^= GTK_RBNODE_IS_PARENT;
8666         }
8667     }
8668   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8669
8670   if (path)
8671     gtk_tree_path_free (path);
8672 }
8673
8674 /* If height is non-NULL, then we set it to be the new height.  if it's all
8675  * dirty, then height is -1.  We know we'll remeasure dirty rows, anyways.
8676  */
8677 static gboolean
8678 gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
8679                                    GtkTreeIter *iter,
8680                                    gint         depth,
8681                                    gint        *height,
8682                                    GtkRBNode   *node)
8683 {
8684   GtkTreeViewColumn *column;
8685   GList *list;
8686   gboolean retval = FALSE;
8687   gint tmpheight;
8688   gint horizontal_separator;
8689
8690   gtk_widget_style_get (GTK_WIDGET (tree_view),
8691                         "horizontal-separator", &horizontal_separator,
8692                         NULL);
8693
8694   if (height)
8695     *height = -1;
8696
8697   for (list = tree_view->priv->columns; list; list = list->next)
8698     {
8699       gint width;
8700       column = list->data;
8701       if (column->dirty == TRUE)
8702         continue;
8703       if (height == NULL && column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
8704         continue;
8705       if (!column->visible)
8706         continue;
8707
8708       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
8709                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
8710                                                node->children?TRUE:FALSE);
8711
8712       if (height)
8713         {
8714           gtk_tree_view_column_cell_get_size (column,
8715                                               NULL, NULL, NULL,
8716                                               &width, &tmpheight);
8717           *height = MAX (*height, tmpheight);
8718         }
8719       else
8720         {
8721           gtk_tree_view_column_cell_get_size (column,
8722                                               NULL, NULL, NULL,
8723                                               &width, NULL);
8724         }
8725
8726       if (gtk_tree_view_is_expander_column (tree_view, column))
8727         {
8728           int tmp = 0;
8729
8730           tmp = horizontal_separator + width + (depth - 1) * tree_view->priv->level_indentation;
8731           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
8732             tmp += depth * tree_view->priv->expander_size;
8733
8734           if (tmp > column->requested_width)
8735             {
8736               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8737               retval = TRUE;
8738             }
8739         }
8740       else
8741         {
8742           if (horizontal_separator + width > column->requested_width)
8743             {
8744               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8745               retval = TRUE;
8746             }
8747         }
8748     }
8749
8750   return retval;
8751 }
8752
8753 static void
8754 gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
8755                               GtkRBTree   *tree,
8756                               GtkTreeIter *iter,
8757                               gint         depth)
8758 {
8759   GtkRBNode *temp = tree->root;
8760   GtkTreeViewColumn *column;
8761   GList *list;
8762   GtkTreeIter child;
8763   gboolean is_all_dirty;
8764
8765   TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
8766
8767   while (temp->left != tree->nil)
8768     temp = temp->left;
8769
8770   do
8771     {
8772       TREE_VIEW_INTERNAL_ASSERT_VOID (temp != NULL);
8773       is_all_dirty = TRUE;
8774       for (list = tree_view->priv->columns; list; list = list->next)
8775         {
8776           column = list->data;
8777           if (column->dirty == FALSE)
8778             {
8779               is_all_dirty = FALSE;
8780               break;
8781             }
8782         }
8783
8784       if (is_all_dirty)
8785         return;
8786
8787       gtk_tree_view_discover_dirty_iter (tree_view,
8788                                          iter,
8789                                          depth,
8790                                          NULL,
8791                                          temp);
8792       if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
8793           temp->children != NULL)
8794         gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
8795       temp = _gtk_rbtree_next (tree, temp);
8796     }
8797   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8798 }
8799
8800
8801 /* Make sure the node is visible vertically */
8802 static void
8803 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8804                                   GtkRBTree   *tree,
8805                                   GtkRBNode   *node)
8806 {
8807   gint node_dy, height;
8808   GtkTreePath *path = NULL;
8809
8810   if (!GTK_WIDGET_REALIZED (tree_view))
8811     return;
8812
8813   /* just return if the node is visible, avoiding a costly expose */
8814   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8815   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8816   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8817       && node_dy >= tree_view->priv->vadjustment->value
8818       && node_dy + height <= (tree_view->priv->vadjustment->value
8819                               + tree_view->priv->vadjustment->page_size))
8820     return;
8821
8822   path = _gtk_tree_view_find_path (tree_view, tree, node);
8823   if (path)
8824     {
8825       /* We process updates because we want to clear old selected items when we scroll.
8826        * if this is removed, we get a "selection streak" at the bottom. */
8827       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8828       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8829       gtk_tree_path_free (path);
8830     }
8831 }
8832
8833 static void
8834 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8835                                     GtkTreeViewColumn *column,
8836                                     gboolean           focus_to_cell)
8837 {
8838   gint x, width;
8839
8840   if (column == NULL)
8841     return;
8842
8843   x = column->button->allocation.x;
8844   width = column->button->allocation.width;
8845
8846   if (width > tree_view->priv->hadjustment->page_size)
8847     {
8848       /* The column is larger than the horizontal page size.  If the
8849        * column has cells which can be focussed individually, then we make
8850        * sure the cell which gets focus is fully visible (if even the
8851        * focus cell is bigger than the page size, we make sure the
8852        * left-hand side of the cell is visible).
8853        *
8854        * If the column does not have those so-called special cells, we
8855        * make sure the left-hand side of the column is visible.
8856        */
8857
8858       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8859         {
8860           GtkTreePath *cursor_path;
8861           GdkRectangle background_area, cell_area, focus_area;
8862
8863           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8864
8865           gtk_tree_view_get_cell_area (tree_view,
8866                                        cursor_path, column, &cell_area);
8867           gtk_tree_view_get_background_area (tree_view,
8868                                              cursor_path, column,
8869                                              &background_area);
8870
8871           gtk_tree_path_free (cursor_path);
8872
8873           _gtk_tree_view_column_get_focus_area (column,
8874                                                 &background_area,
8875                                                 &cell_area,
8876                                                 &focus_area);
8877
8878           x = focus_area.x;
8879           width = focus_area.width;
8880
8881           if (width < tree_view->priv->hadjustment->page_size)
8882             {
8883               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8884                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8885                                           x + width - tree_view->priv->hadjustment->page_size);
8886               else if (tree_view->priv->hadjustment->value > x)
8887                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8888             }
8889         }
8890
8891       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8892                                 CLAMP (x,
8893                                        tree_view->priv->hadjustment->lower,
8894                                        tree_view->priv->hadjustment->upper
8895                                        - tree_view->priv->hadjustment->page_size));
8896     }
8897   else
8898     {
8899       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8900           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8901                                     x + width - tree_view->priv->hadjustment->page_size);
8902       else if (tree_view->priv->hadjustment->value > x)
8903         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8904   }
8905 }
8906
8907 /* This function could be more efficient.  I'll optimize it if profiling seems
8908  * to imply that it is important */
8909 GtkTreePath *
8910 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8911                           GtkRBTree   *tree,
8912                           GtkRBNode   *node)
8913 {
8914   GtkTreePath *path;
8915   GtkRBTree *tmp_tree;
8916   GtkRBNode *tmp_node, *last;
8917   gint count;
8918
8919   path = gtk_tree_path_new ();
8920
8921   g_return_val_if_fail (node != NULL, path);
8922   g_return_val_if_fail (node != tree->nil, path);
8923
8924   count = 1 + node->left->count;
8925
8926   last = node;
8927   tmp_node = node->parent;
8928   tmp_tree = tree;
8929   while (tmp_tree)
8930     {
8931       while (tmp_node != tmp_tree->nil)
8932         {
8933           if (tmp_node->right == last)
8934             count += 1 + tmp_node->left->count;
8935           last = tmp_node;
8936           tmp_node = tmp_node->parent;
8937         }
8938       gtk_tree_path_prepend_index (path, count - 1);
8939       last = tmp_tree->parent_node;
8940       tmp_tree = tmp_tree->parent_tree;
8941       if (last)
8942         {
8943           count = 1 + last->left->count;
8944           tmp_node = last->parent;
8945         }
8946     }
8947   return path;
8948 }
8949
8950 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8951  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8952  * both set to NULL.
8953  */
8954 gboolean
8955 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
8956                           GtkTreePath  *path,
8957                           GtkRBTree   **tree,
8958                           GtkRBNode   **node)
8959 {
8960   GtkRBNode *tmpnode = NULL;
8961   GtkRBTree *tmptree = tree_view->priv->tree;
8962   gint *indices = gtk_tree_path_get_indices (path);
8963   gint depth = gtk_tree_path_get_depth (path);
8964   gint i = 0;
8965
8966   *node = NULL;
8967   *tree = NULL;
8968
8969   if (depth == 0 || tmptree == NULL)
8970     return FALSE;
8971   do
8972     {
8973       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8974       ++i;
8975       if (tmpnode == NULL)
8976         {
8977           *tree = NULL;
8978           *node = NULL;
8979           return FALSE;
8980         }
8981       if (i >= depth)
8982         {
8983           *tree = tmptree;
8984           *node = tmpnode;
8985           return FALSE;
8986         }
8987       *tree = tmptree;
8988       *node = tmpnode;
8989       tmptree = tmpnode->children;
8990       if (tmptree == NULL)
8991         return TRUE;
8992     }
8993   while (1);
8994 }
8995
8996 static gboolean
8997 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
8998                                   GtkTreeViewColumn *column)
8999 {
9000   GList *list;
9001
9002   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9003     return FALSE;
9004
9005   if (tree_view->priv->expander_column != NULL)
9006     {
9007       if (tree_view->priv->expander_column == column)
9008         return TRUE;
9009       return FALSE;
9010     }
9011   else
9012     {
9013       for (list = tree_view->priv->columns;
9014            list;
9015            list = list->next)
9016         if (((GtkTreeViewColumn *)list->data)->visible)
9017           break;
9018       if (list && list->data == column)
9019         return TRUE;
9020     }
9021   return FALSE;
9022 }
9023
9024 static void
9025 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9026                                 guint           keyval,
9027                                 guint           modmask,
9028                                 gboolean        add_shifted_binding,
9029                                 GtkMovementStep step,
9030                                 gint            count)
9031 {
9032
9033   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9034                                 "move_cursor", 2,
9035                                 G_TYPE_ENUM, step,
9036                                 G_TYPE_INT, count);
9037
9038   if (add_shifted_binding)
9039     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9040                                   "move_cursor", 2,
9041                                   G_TYPE_ENUM, step,
9042                                   G_TYPE_INT, count);
9043
9044   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9045    return;
9046
9047   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9048                                 "move_cursor", 2,
9049                                 G_TYPE_ENUM, step,
9050                                 G_TYPE_INT, count);
9051
9052   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9053                                 "move_cursor", 2,
9054                                 G_TYPE_ENUM, step,
9055                                 G_TYPE_INT, count);
9056 }
9057
9058 static gint
9059 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9060                                  GtkTreeIter  *iter,
9061                                  GtkRBTree    *tree,
9062                                  GtkRBNode    *node)
9063 {
9064   gint retval = FALSE;
9065   do
9066     {
9067       g_return_val_if_fail (node != NULL, FALSE);
9068
9069       if (node->children)
9070         {
9071           GtkTreeIter child;
9072           GtkRBTree *new_tree;
9073           GtkRBNode *new_node;
9074
9075           new_tree = node->children;
9076           new_node = new_tree->root;
9077
9078           while (new_node && new_node->left != new_tree->nil)
9079             new_node = new_node->left;
9080
9081           if (!gtk_tree_model_iter_children (model, &child, iter))
9082             return FALSE;
9083
9084           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9085         }
9086
9087       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9088         retval = TRUE;
9089       gtk_tree_model_unref_node (model, iter);
9090       node = _gtk_rbtree_next (tree, node);
9091     }
9092   while (gtk_tree_model_iter_next (model, iter));
9093
9094   return retval;
9095 }
9096
9097 static gint
9098 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9099                                               GtkRBTree   *tree)
9100 {
9101   GtkTreeIter iter;
9102   GtkTreePath *path;
9103   GtkRBNode *node;
9104   gint retval;
9105
9106   if (!tree)
9107     return FALSE;
9108
9109   node = tree->root;
9110   while (node && node->left != tree->nil)
9111     node = node->left;
9112
9113   g_return_val_if_fail (node != NULL, FALSE);
9114   path = _gtk_tree_view_find_path (tree_view, tree, node);
9115   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9116                            &iter, path);
9117   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9118   gtk_tree_path_free (path);
9119
9120   return retval;
9121 }
9122
9123 static void
9124 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9125                                     GtkTreeViewColumn *column)
9126 {
9127   GtkTreeViewColumn *left_column;
9128   GtkTreeViewColumn *cur_column = NULL;
9129   GtkTreeViewColumnReorder *reorder;
9130   gboolean rtl;
9131   GList *tmp_list;
9132   gint left;
9133
9134   /* We want to precalculate the motion list such that we know what column slots
9135    * are available.
9136    */
9137   left_column = NULL;
9138   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9139
9140   /* First, identify all possible drop spots */
9141   if (rtl)
9142     tmp_list = g_list_last (tree_view->priv->columns);
9143   else
9144     tmp_list = g_list_first (tree_view->priv->columns);
9145
9146   while (tmp_list)
9147     {
9148       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9149       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9150
9151       if (cur_column->visible == FALSE)
9152         continue;
9153
9154       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9155       if (left_column != column && cur_column != column &&
9156           tree_view->priv->column_drop_func &&
9157           ! (* tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9158         {
9159           left_column = cur_column;
9160           continue;
9161         }
9162       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9163       reorder->left_column = left_column;
9164       left_column = reorder->right_column = cur_column;
9165
9166       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9167     }
9168
9169   /* Add the last one */
9170   if (tree_view->priv->column_drop_func == NULL ||
9171       ((left_column != column) &&
9172        (* tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9173     {
9174       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9175       reorder->left_column = left_column;
9176       reorder->right_column = NULL;
9177       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9178     }
9179
9180   /* We quickly check to see if it even makes sense to reorder columns. */
9181   /* If there is nothing that can be moved, then we return */
9182
9183   if (tree_view->priv->column_drag_info == NULL)
9184     return;
9185
9186   /* We know there are always 2 slots possbile, as you can always return column. */
9187   /* If that's all there is, return */
9188   if (tree_view->priv->column_drag_info->next == NULL ||
9189       (tree_view->priv->column_drag_info->next->next == NULL &&
9190        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9191        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9192     {
9193       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9194         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9195       g_list_free (tree_view->priv->column_drag_info);
9196       tree_view->priv->column_drag_info = NULL;
9197       return;
9198     }
9199   /* We fill in the ranges for the columns, now that we've isolated them */
9200   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9201
9202   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9203     {
9204       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9205
9206       reorder->left_align = left;
9207       if (tmp_list->next != NULL)
9208         {
9209           g_assert (tmp_list->next->data);
9210           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9211                                          reorder->right_column->button->allocation.width +
9212                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9213         }
9214       else
9215         {
9216           gint width;
9217
9218           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9219           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9220         }
9221     }
9222 }
9223
9224 void
9225 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9226                                   GtkTreeViewColumn *column)
9227 {
9228   GdkEvent *send_event;
9229   GtkAllocation allocation;
9230   gint x, y, width, height;
9231   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9232   GdkDisplay *display = gdk_screen_get_display (screen);
9233
9234   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9235   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9236
9237   gtk_tree_view_set_column_drag_info (tree_view, column);
9238
9239   if (tree_view->priv->column_drag_info == NULL)
9240     return;
9241
9242   if (tree_view->priv->drag_window == NULL)
9243     {
9244       GdkWindowAttr attributes;
9245       guint attributes_mask;
9246
9247       attributes.window_type = GDK_WINDOW_CHILD;
9248       attributes.wclass = GDK_INPUT_OUTPUT;
9249       attributes.x = column->button->allocation.x;
9250       attributes.y = 0;
9251       attributes.width = column->button->allocation.width;
9252       attributes.height = column->button->allocation.height;
9253       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9254       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9255       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9256       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9257
9258       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9259                                                      &attributes,
9260                                                      attributes_mask);
9261       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9262     }
9263
9264   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9265   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9266
9267   gtk_grab_remove (column->button);
9268
9269   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9270   send_event->crossing.send_event = TRUE;
9271   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9272   send_event->crossing.subwindow = NULL;
9273   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9274   send_event->crossing.time = GDK_CURRENT_TIME;
9275
9276   gtk_propagate_event (column->button, send_event);
9277   gdk_event_free (send_event);
9278
9279   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9280   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9281   send_event->button.send_event = TRUE;
9282   send_event->button.time = GDK_CURRENT_TIME;
9283   send_event->button.x = -1;
9284   send_event->button.y = -1;
9285   send_event->button.axes = NULL;
9286   send_event->button.state = 0;
9287   send_event->button.button = 1;
9288   send_event->button.device = gdk_display_get_core_pointer (display);
9289   send_event->button.x_root = 0;
9290   send_event->button.y_root = 0;
9291
9292   gtk_propagate_event (column->button, send_event);
9293   gdk_event_free (send_event);
9294
9295   /* Kids, don't try this at home */
9296   g_object_ref (column->button);
9297   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9298   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9299   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9300   g_object_unref (column->button);
9301
9302   tree_view->priv->drag_column_x = column->button->allocation.x;
9303   allocation = column->button->allocation;
9304   allocation.x = 0;
9305   gtk_widget_size_allocate (column->button, &allocation);
9306   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9307
9308   tree_view->priv->drag_column = column;
9309   gdk_window_show (tree_view->priv->drag_window);
9310
9311   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9312   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9313
9314   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9315   while (gtk_events_pending ())
9316     gtk_main_iteration ();
9317
9318   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9319   gdk_pointer_grab (tree_view->priv->drag_window,
9320                     FALSE,
9321                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9322                     NULL, NULL, GDK_CURRENT_TIME);
9323   gdk_keyboard_grab (tree_view->priv->drag_window,
9324                      FALSE,
9325                      GDK_CURRENT_TIME);
9326 }
9327
9328 static void
9329 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9330                                 GtkRBTree          *tree,
9331                                 GtkRBNode          *node,
9332                                 const GdkRectangle *clip_rect)
9333 {
9334   GdkRectangle rect;
9335
9336   if (!GTK_WIDGET_REALIZED (tree_view))
9337     return;
9338
9339   rect.x = 0;
9340   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9341
9342   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9343   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9344
9345   if (clip_rect)
9346     {
9347       GdkRectangle new_rect;
9348
9349       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9350
9351       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9352     }
9353   else
9354     {
9355       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9356     }
9357 }
9358
9359 void
9360 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9361                                 GtkRBTree          *tree,
9362                                 GtkRBNode          *node,
9363                                 const GdkRectangle *clip_rect)
9364 {
9365   GdkRectangle rect;
9366
9367   if (!GTK_WIDGET_REALIZED (tree_view))
9368     return;
9369
9370   rect.x = 0;
9371   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9372
9373   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9374   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9375
9376   if (clip_rect)
9377     {
9378       GdkRectangle new_rect;
9379
9380       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9381
9382       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9383     }
9384   else
9385     {
9386       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9387     }
9388 }
9389
9390 static void
9391 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9392                                GtkTreePath        *path,
9393                                const GdkRectangle *clip_rect)
9394 {
9395   GtkRBTree *tree = NULL;
9396   GtkRBNode *node = NULL;
9397
9398   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9399
9400   if (tree)
9401     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9402 }
9403
9404 /* x and y are the mouse position
9405  */
9406 static void
9407 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9408                           GtkRBTree   *tree,
9409                           GtkRBNode   *node,
9410                           /* in bin_window coordinates */
9411                           gint         x,
9412                           gint         y)
9413 {
9414   GdkRectangle area;
9415   GtkStateType state;
9416   GtkWidget *widget;
9417   gint x_offset = 0;
9418   gint x2;
9419   gint vertical_separator;
9420   gint expander_size;
9421   GtkExpanderStyle expander_style;
9422
9423   gtk_widget_style_get (GTK_WIDGET (tree_view),
9424                         "vertical-separator", &vertical_separator,
9425                         NULL);
9426   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9427
9428   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9429     return;
9430
9431   widget = GTK_WIDGET (tree_view);
9432
9433   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9434
9435   area.x = x_offset;
9436   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9437   area.width = expander_size + 2;
9438   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9439
9440   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9441     {
9442       state = GTK_STATE_INSENSITIVE;
9443     }
9444   else if (node == tree_view->priv->button_pressed_node)
9445     {
9446       if (x >= area.x && x <= (area.x + area.width) &&
9447           y >= area.y && y <= (area.y + area.height))
9448         state = GTK_STATE_ACTIVE;
9449       else
9450         state = GTK_STATE_NORMAL;
9451     }
9452   else
9453     {
9454       if (node == tree_view->priv->prelight_node &&
9455           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9456         state = GTK_STATE_PRELIGHT;
9457       else
9458         state = GTK_STATE_NORMAL;
9459     }
9460
9461   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9462     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9463   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9464     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9465   else if (node->children != NULL)
9466     expander_style = GTK_EXPANDER_EXPANDED;
9467   else
9468     expander_style = GTK_EXPANDER_COLLAPSED;
9469
9470   gtk_paint_expander (widget->style,
9471                       tree_view->priv->bin_window,
9472                       state,
9473                       &area,
9474                       widget,
9475                       "treeview",
9476                       area.x + area.width / 2,
9477                       area.y + area.height / 2,
9478                       expander_style);
9479 }
9480
9481 static void
9482 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9483
9484 {
9485   GtkTreePath *cursor_path;
9486
9487   if ((tree_view->priv->tree == NULL) ||
9488       (! GTK_WIDGET_REALIZED (tree_view)))
9489     return;
9490
9491   cursor_path = NULL;
9492   if (tree_view->priv->cursor)
9493     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9494
9495   if (cursor_path == NULL)
9496     {
9497       /* Consult the selection before defaulting to the
9498        * first focusable element
9499        */
9500       GList *selected_rows;
9501       GtkTreeModel *model;
9502       GtkTreeSelection *selection;
9503
9504       selection = gtk_tree_view_get_selection (tree_view);
9505       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9506
9507       if (selected_rows)
9508         {
9509           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9510           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9511           g_list_free (selected_rows);
9512         }
9513       else
9514         {
9515           cursor_path = gtk_tree_path_new_first ();
9516           search_first_focusable_path (tree_view, &cursor_path,
9517                                        TRUE, NULL, NULL);
9518         }
9519
9520       gtk_tree_row_reference_free (tree_view->priv->cursor);
9521       tree_view->priv->cursor = NULL;
9522
9523       if (cursor_path)
9524         {
9525           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9526             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9527           else
9528             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9529         }
9530     }
9531
9532   if (cursor_path)
9533     {
9534       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9535
9536       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9537       gtk_tree_path_free (cursor_path);
9538
9539       if (tree_view->priv->focus_column == NULL)
9540         {
9541           GList *list;
9542           for (list = tree_view->priv->columns; list; list = list->next)
9543             {
9544               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9545                 {
9546                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9547                   break;
9548                 }
9549             }
9550         }
9551     }
9552 }
9553
9554 static void
9555 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9556                                    gint         count)
9557 {
9558   gint selection_count;
9559   GtkRBTree *cursor_tree = NULL;
9560   GtkRBNode *cursor_node = NULL;
9561   GtkRBTree *new_cursor_tree = NULL;
9562   GtkRBNode *new_cursor_node = NULL;
9563   GtkTreePath *cursor_path = NULL;
9564   gboolean grab_focus = TRUE;
9565   gboolean selectable;
9566
9567   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9568     return;
9569
9570   cursor_path = NULL;
9571   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9572     /* FIXME: we lost the cursor; should we get the first? */
9573     return;
9574
9575   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9576   _gtk_tree_view_find_node (tree_view, cursor_path,
9577                             &cursor_tree, &cursor_node);
9578
9579   if (cursor_tree == NULL)
9580     /* FIXME: we lost the cursor; should we get the first? */
9581     return;
9582
9583   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9584   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9585                                                       cursor_node,
9586                                                       cursor_path);
9587
9588   if (selection_count == 0
9589       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9590       && !tree_view->priv->ctrl_pressed
9591       && selectable)
9592     {
9593       /* Don't move the cursor, but just select the current node */
9594       new_cursor_tree = cursor_tree;
9595       new_cursor_node = cursor_node;
9596     }
9597   else
9598     {
9599       if (count == -1)
9600         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9601                                &new_cursor_tree, &new_cursor_node);
9602       else
9603         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9604                                &new_cursor_tree, &new_cursor_node);
9605     }
9606
9607   gtk_tree_path_free (cursor_path);
9608
9609   if (new_cursor_node)
9610     {
9611       cursor_path = _gtk_tree_view_find_path (tree_view,
9612                                               new_cursor_tree, new_cursor_node);
9613
9614       search_first_focusable_path (tree_view, &cursor_path,
9615                                    (count != -1),
9616                                    &new_cursor_tree,
9617                                    &new_cursor_node);
9618
9619       if (cursor_path)
9620         gtk_tree_path_free (cursor_path);
9621     }
9622
9623   /*
9624    * If the list has only one item and multi-selection is set then select
9625    * the row (if not yet selected).
9626    */
9627   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9628       new_cursor_node == NULL)
9629     {
9630       if (count == -1)
9631         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9632                                &new_cursor_tree, &new_cursor_node);
9633       else
9634         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9635                                &new_cursor_tree, &new_cursor_node);
9636
9637       if (new_cursor_node == NULL
9638           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9639         {
9640           new_cursor_node = cursor_node;
9641           new_cursor_tree = cursor_tree;
9642         }
9643       else
9644         {
9645           new_cursor_node = NULL;
9646         }
9647     }
9648
9649   if (new_cursor_node)
9650     {
9651       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9652       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9653       gtk_tree_path_free (cursor_path);
9654     }
9655   else
9656     {
9657       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9658
9659       if (!tree_view->priv->shift_pressed)
9660         {
9661           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9662                                           count < 0 ?
9663                                           GTK_DIR_UP : GTK_DIR_DOWN))
9664             {
9665               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9666
9667               if (toplevel)
9668                 gtk_widget_child_focus (toplevel,
9669                                         count < 0 ?
9670                                         GTK_DIR_TAB_BACKWARD :
9671                                         GTK_DIR_TAB_FORWARD);
9672
9673               grab_focus = FALSE;
9674             }
9675         }
9676       else
9677         {
9678           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9679         }
9680     }
9681
9682   if (grab_focus)
9683     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9684 }
9685
9686 static void
9687 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9688                                         gint         count)
9689 {
9690   GtkRBTree *cursor_tree = NULL;
9691   GtkRBNode *cursor_node = NULL;
9692   GtkTreePath *old_cursor_path = NULL;
9693   GtkTreePath *cursor_path = NULL;
9694   GtkRBTree *start_cursor_tree = NULL;
9695   GtkRBNode *start_cursor_node = NULL;
9696   gint y;
9697   gint window_y;
9698   gint vertical_separator;
9699
9700   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9701     return;
9702
9703   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9704     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9705   else
9706     /* This is sorta weird.  Focus in should give us a cursor */
9707     return;
9708
9709   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9710   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9711                             &cursor_tree, &cursor_node);
9712
9713   if (cursor_tree == NULL)
9714     {
9715       /* FIXME: we lost the cursor.  Should we try to get one? */
9716       gtk_tree_path_free (old_cursor_path);
9717       return;
9718     }
9719   g_return_if_fail (cursor_node != NULL);
9720
9721   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9722   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9723   y += tree_view->priv->cursor_offset;
9724   y += count * (int)tree_view->priv->vadjustment->page_increment;
9725   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9726
9727   if (y >= tree_view->priv->height)
9728     y = tree_view->priv->height - 1;
9729
9730   tree_view->priv->cursor_offset =
9731     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9732                              &cursor_tree, &cursor_node);
9733
9734   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9735     {
9736       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9737                              &cursor_tree, &cursor_node);
9738       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9739     }
9740
9741   y -= tree_view->priv->cursor_offset;
9742   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9743
9744   start_cursor_tree = cursor_tree;
9745   start_cursor_node = cursor_node;
9746
9747   if (! search_first_focusable_path (tree_view, &cursor_path,
9748                                      (count != -1),
9749                                      &cursor_tree, &cursor_node))
9750     {
9751       /* It looks like we reached the end of the view without finding
9752        * a focusable row.  We will step backwards to find the last
9753        * focusable row.
9754        */
9755       cursor_tree = start_cursor_tree;
9756       cursor_node = start_cursor_node;
9757       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9758
9759       search_first_focusable_path (tree_view, &cursor_path,
9760                                    (count == -1),
9761                                    &cursor_tree, &cursor_node);
9762     }
9763
9764   if (!cursor_path)
9765     goto cleanup;
9766
9767   /* update y */
9768   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9769
9770   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9771
9772   y -= window_y;
9773   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9774   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9775   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9776
9777   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9778     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9779
9780 cleanup:
9781   gtk_tree_path_free (old_cursor_path);
9782   gtk_tree_path_free (cursor_path);
9783 }
9784
9785 static void
9786 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9787                                       gint         count)
9788 {
9789   GtkRBTree *cursor_tree = NULL;
9790   GtkRBNode *cursor_node = NULL;
9791   GtkTreePath *cursor_path = NULL;
9792   GtkTreeViewColumn *column;
9793   GtkTreeIter iter;
9794   GList *list;
9795   gboolean found_column = FALSE;
9796   gboolean rtl;
9797
9798   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9799
9800   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9801     return;
9802
9803   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9804     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9805   else
9806     return;
9807
9808   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9809   if (cursor_tree == NULL)
9810     return;
9811   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9812     {
9813       gtk_tree_path_free (cursor_path);
9814       return;
9815     }
9816   gtk_tree_path_free (cursor_path);
9817
9818   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9819   if (tree_view->priv->focus_column)
9820     {
9821       for (; list; list = (rtl ? list->prev : list->next))
9822         {
9823           if (list->data == tree_view->priv->focus_column)
9824             break;
9825         }
9826     }
9827
9828   while (list)
9829     {
9830       gboolean left, right;
9831
9832       column = list->data;
9833       if (column->visible == FALSE)
9834         goto loop_end;
9835
9836       gtk_tree_view_column_cell_set_cell_data (column,
9837                                                tree_view->priv->model,
9838                                                &iter,
9839                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9840                                                cursor_node->children?TRUE:FALSE);
9841
9842       if (rtl)
9843         {
9844           right = list->prev ? TRUE : FALSE;
9845           left = list->next ? TRUE : FALSE;
9846         }
9847       else
9848         {
9849           left = list->prev ? TRUE : FALSE;
9850           right = list->next ? TRUE : FALSE;
9851         }
9852
9853       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9854         {
9855           tree_view->priv->focus_column = column;
9856           found_column = TRUE;
9857           break;
9858         }
9859     loop_end:
9860       if (count == 1)
9861         list = rtl ? list->prev : list->next;
9862       else
9863         list = rtl ? list->next : list->prev;
9864     }
9865
9866   if (found_column)
9867     {
9868       if (!gtk_tree_view_has_special_cell (tree_view))
9869         _gtk_tree_view_queue_draw_node (tree_view,
9870                                         cursor_tree,
9871                                         cursor_node,
9872                                         NULL);
9873       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9874     }
9875   else
9876     {
9877       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9878     }
9879
9880   gtk_tree_view_clamp_column_visible (tree_view,
9881                                       tree_view->priv->focus_column, TRUE);
9882 }
9883
9884 static void
9885 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9886                                      gint         count)
9887 {
9888   GtkRBTree *cursor_tree;
9889   GtkRBNode *cursor_node;
9890   GtkTreePath *path;
9891   GtkTreePath *old_path;
9892
9893   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9894     return;
9895
9896   g_return_if_fail (tree_view->priv->tree != NULL);
9897
9898   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9899
9900   cursor_tree = tree_view->priv->tree;
9901   cursor_node = cursor_tree->root;
9902
9903   if (count == -1)
9904     {
9905       while (cursor_node && cursor_node->left != cursor_tree->nil)
9906         cursor_node = cursor_node->left;
9907
9908       /* Now go forward to find the first focusable row. */
9909       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9910       search_first_focusable_path (tree_view, &path,
9911                                    TRUE, &cursor_tree, &cursor_node);
9912     }
9913   else
9914     {
9915       do
9916         {
9917           while (cursor_node && cursor_node->right != cursor_tree->nil)
9918             cursor_node = cursor_node->right;
9919           if (cursor_node->children == NULL)
9920             break;
9921
9922           cursor_tree = cursor_node->children;
9923           cursor_node = cursor_tree->root;
9924         }
9925       while (1);
9926
9927       /* Now go backwards to find last focusable row. */
9928       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9929       search_first_focusable_path (tree_view, &path,
9930                                    FALSE, &cursor_tree, &cursor_node);
9931     }
9932
9933   if (!path)
9934     goto cleanup;
9935
9936   if (gtk_tree_path_compare (old_path, path))
9937     {
9938       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9939     }
9940   else
9941     {
9942       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9943     }
9944
9945 cleanup:
9946   gtk_tree_path_free (old_path);
9947   gtk_tree_path_free (path);
9948 }
9949
9950 static gboolean
9951 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
9952 {
9953   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9954     return FALSE;
9955
9956   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9957     return FALSE;
9958
9959   gtk_tree_selection_select_all (tree_view->priv->selection);
9960
9961   return TRUE;
9962 }
9963
9964 static gboolean
9965 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
9966 {
9967   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9968     return FALSE;
9969
9970   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9971     return FALSE;
9972
9973   gtk_tree_selection_unselect_all (tree_view->priv->selection);
9974
9975   return TRUE;
9976 }
9977
9978 static gboolean
9979 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
9980                                       gboolean     start_editing)
9981 {
9982   GtkRBTree *new_tree = NULL;
9983   GtkRBNode *new_node = NULL;
9984   GtkRBTree *cursor_tree = NULL;
9985   GtkRBNode *cursor_node = NULL;
9986   GtkTreePath *cursor_path = NULL;
9987   GtkTreeSelectMode mode = 0;
9988
9989   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9990     return FALSE;
9991
9992   if (tree_view->priv->cursor)
9993     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9994
9995   if (cursor_path == NULL)
9996     return FALSE;
9997
9998   _gtk_tree_view_find_node (tree_view, cursor_path,
9999                             &cursor_tree, &cursor_node);
10000
10001   if (cursor_tree == NULL)
10002     {
10003       gtk_tree_path_free (cursor_path);
10004       return FALSE;
10005     }
10006
10007   if (!tree_view->priv->shift_pressed && start_editing &&
10008       tree_view->priv->focus_column)
10009     {
10010       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10011         {
10012           gtk_tree_path_free (cursor_path);
10013           return TRUE;
10014         }
10015     }
10016
10017   if (tree_view->priv->ctrl_pressed)
10018     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10019   if (tree_view->priv->shift_pressed)
10020     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10021
10022   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10023                                             cursor_node,
10024                                             cursor_tree,
10025                                             cursor_path,
10026                                             mode,
10027                                             FALSE);
10028
10029   /* We bail out if the original (tree, node) don't exist anymore after
10030    * handling the selection-changed callback.  We do return TRUE because
10031    * the key press has been handled at this point.
10032    */
10033   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10034
10035   if (cursor_tree != new_tree || cursor_node != new_node)
10036     return FALSE;
10037
10038   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10039
10040   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10041   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10042
10043   if (!tree_view->priv->shift_pressed)
10044     gtk_tree_view_row_activated (tree_view, cursor_path,
10045                                  tree_view->priv->focus_column);
10046
10047   gtk_tree_path_free (cursor_path);
10048
10049   return TRUE;
10050 }
10051
10052 static gboolean
10053 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10054 {
10055   GtkRBTree *new_tree = NULL;
10056   GtkRBNode *new_node = NULL;
10057   GtkRBTree *cursor_tree = NULL;
10058   GtkRBNode *cursor_node = NULL;
10059   GtkTreePath *cursor_path = NULL;
10060
10061   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10062     return FALSE;
10063
10064   cursor_path = NULL;
10065   if (tree_view->priv->cursor)
10066     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10067
10068   if (cursor_path == NULL)
10069     return FALSE;
10070
10071   _gtk_tree_view_find_node (tree_view, cursor_path,
10072                             &cursor_tree, &cursor_node);
10073   if (cursor_tree == NULL)
10074     {
10075       gtk_tree_path_free (cursor_path);
10076       return FALSE;
10077     }
10078
10079   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10080                                             cursor_node,
10081                                             cursor_tree,
10082                                             cursor_path,
10083                                             GTK_TREE_SELECT_MODE_TOGGLE,
10084                                             FALSE);
10085
10086   /* We bail out if the original (tree, node) don't exist anymore after
10087    * handling the selection-changed callback.  We do return TRUE because
10088    * the key press has been handled at this point.
10089    */
10090   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10091
10092   if (cursor_tree != new_tree || cursor_node != new_node)
10093     return FALSE;
10094
10095   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10096
10097   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10098   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10099   gtk_tree_path_free (cursor_path);
10100
10101   return TRUE;
10102 }
10103
10104 static gboolean
10105 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10106                                                gboolean     logical,
10107                                                gboolean     expand,
10108                                                gboolean     open_all)
10109 {
10110   GtkTreePath *cursor_path = NULL;
10111   GtkRBTree *tree;
10112   GtkRBNode *node;
10113
10114   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10115     return FALSE;
10116
10117   cursor_path = NULL;
10118   if (tree_view->priv->cursor)
10119     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10120
10121   if (cursor_path == NULL)
10122     return FALSE;
10123
10124   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10125     return FALSE;
10126
10127   /* Don't handle the event if we aren't an expander */
10128   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10129     return FALSE;
10130
10131   if (!logical
10132       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10133     expand = !expand;
10134
10135   if (expand)
10136     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10137   else
10138     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10139
10140   gtk_tree_path_free (cursor_path);
10141
10142   return TRUE;
10143 }
10144
10145 static gboolean
10146 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10147 {
10148   GtkRBTree *cursor_tree = NULL;
10149   GtkRBNode *cursor_node = NULL;
10150   GtkTreePath *cursor_path = NULL;
10151   GdkModifierType state;
10152
10153   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10154     return FALSE;
10155
10156   cursor_path = NULL;
10157   if (tree_view->priv->cursor)
10158     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10159
10160   if (cursor_path == NULL)
10161     return FALSE;
10162
10163   _gtk_tree_view_find_node (tree_view, cursor_path,
10164                             &cursor_tree, &cursor_node);
10165   if (cursor_tree == NULL)
10166     {
10167       gtk_tree_path_free (cursor_path);
10168       return FALSE;
10169     }
10170
10171   if (gtk_get_current_event_state (&state))
10172     {
10173       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10174         tree_view->priv->ctrl_pressed = TRUE;
10175     }
10176
10177   if (cursor_tree->parent_node)
10178     {
10179       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10180       cursor_node = cursor_tree->parent_node;
10181       cursor_tree = cursor_tree->parent_tree;
10182
10183       gtk_tree_path_up (cursor_path);
10184
10185       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10186     }
10187
10188   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10189
10190   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10191   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10192   gtk_tree_path_free (cursor_path);
10193
10194   tree_view->priv->ctrl_pressed = FALSE;
10195
10196   return TRUE;
10197 }
10198 static gboolean
10199 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10200 {
10201   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10202   tree_view->priv->typeselect_flush_timeout = 0;
10203
10204   return FALSE;
10205 }
10206
10207 /* Cut and paste from gtkwindow.c */
10208 static void
10209 send_focus_change (GtkWidget *widget,
10210                    gboolean   in)
10211 {
10212   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10213
10214   g_object_ref (widget);
10215
10216  if (in)
10217     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10218   else
10219     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10220
10221   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10222   fevent->focus_change.window = g_object_ref (widget->window);
10223   fevent->focus_change.in = in;
10224
10225   gtk_widget_event (widget, fevent);
10226
10227   g_object_notify (G_OBJECT (widget), "has-focus");
10228
10229   g_object_unref (widget);
10230   gdk_event_free (fevent);
10231 }
10232
10233 static void
10234 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10235 {
10236   GtkWidget *frame, *vbox, *toplevel;
10237
10238   if (tree_view->priv->search_custom_entry_set)
10239     return;
10240
10241   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10242
10243    if (tree_view->priv->search_window != NULL)
10244      {
10245        if (GTK_WINDOW (toplevel)->group)
10246          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10247                                       GTK_WINDOW (tree_view->priv->search_window));
10248        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10249          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10250                                          GTK_WINDOW (tree_view->priv->search_window));
10251        return;
10252      }
10253
10254   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10255
10256   if (GTK_WINDOW (toplevel)->group)
10257     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10258                                  GTK_WINDOW (tree_view->priv->search_window));
10259
10260   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10261                             GDK_WINDOW_TYPE_HINT_UTILITY);
10262   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10263   g_signal_connect (tree_view->priv->search_window, "delete_event",
10264                     G_CALLBACK (gtk_tree_view_search_delete_event),
10265                     tree_view);
10266   g_signal_connect (tree_view->priv->search_window, "key_press_event",
10267                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10268                     tree_view);
10269   g_signal_connect (tree_view->priv->search_window, "button_press_event",
10270                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10271                     tree_view);
10272   g_signal_connect (tree_view->priv->search_window, "scroll_event",
10273                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10274                     tree_view);
10275
10276   frame = gtk_frame_new (NULL);
10277   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10278   gtk_widget_show (frame);
10279   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10280
10281   vbox = gtk_vbox_new (FALSE, 0);
10282   gtk_widget_show (vbox);
10283   gtk_container_add (GTK_CONTAINER (frame), vbox);
10284   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10285
10286   /* add entry */
10287   tree_view->priv->search_entry = gtk_entry_new ();
10288   gtk_widget_show (tree_view->priv->search_entry);
10289   g_signal_connect (tree_view->priv->search_entry, "populate_popup",
10290                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10291                     tree_view);
10292   g_signal_connect (tree_view->priv->search_entry,
10293                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10294                     tree_view);
10295   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10296                     "preedit_changed",
10297                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10298                     tree_view);
10299   gtk_container_add (GTK_CONTAINER (vbox),
10300                      tree_view->priv->search_entry);
10301
10302   gtk_widget_realize (tree_view->priv->search_entry);
10303 }
10304
10305 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10306  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10307  */
10308 static gboolean
10309 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10310                                              gboolean     keybinding)
10311 {
10312   /* We only start interactive search if we have focus or the columns
10313    * have focus.  If one of our children have focus, we don't want to
10314    * start the search.
10315    */
10316   GList *list;
10317   gboolean found_focus = FALSE;
10318   GtkWidgetClass *entry_parent_class;
10319
10320   if (!tree_view->priv->enable_search && !keybinding)
10321     return FALSE;
10322
10323   if (tree_view->priv->search_custom_entry_set)
10324     return FALSE;
10325
10326   if (tree_view->priv->search_window != NULL &&
10327       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10328     return TRUE;
10329
10330   for (list = tree_view->priv->columns; list; list = list->next)
10331     {
10332       GtkTreeViewColumn *column;
10333
10334       column = list->data;
10335       if (! column->visible)
10336         continue;
10337
10338       if (GTK_WIDGET_HAS_FOCUS (column->button))
10339         {
10340           found_focus = TRUE;
10341           break;
10342         }
10343     }
10344
10345   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10346     found_focus = TRUE;
10347
10348   if (!found_focus)
10349     return FALSE;
10350
10351   if (tree_view->priv->search_column < 0)
10352     return FALSE;
10353
10354   gtk_tree_view_ensure_interactive_directory (tree_view);
10355
10356   if (keybinding)
10357     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10358
10359   /* done, show it */
10360   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10361   gtk_widget_show (tree_view->priv->search_window);
10362   if (tree_view->priv->search_entry_changed_id == 0)
10363     {
10364       tree_view->priv->search_entry_changed_id =
10365         g_signal_connect (tree_view->priv->search_entry, "changed",
10366                           G_CALLBACK (gtk_tree_view_search_init),
10367                           tree_view);
10368     }
10369
10370   tree_view->priv->typeselect_flush_timeout =
10371     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10372                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10373                    tree_view);
10374
10375   /* Grab focus will select all the text.  We don't want that to happen, so we
10376    * call the parent instance and bypass the selection change.  This is probably
10377    * really non-kosher. */
10378   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10379   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10380
10381   /* send focus-in event */
10382   send_focus_change (tree_view->priv->search_entry, TRUE);
10383
10384   /* search first matching iter */
10385   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10386
10387   return TRUE;
10388 }
10389
10390 static gboolean
10391 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10392 {
10393   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10394 }
10395
10396 /* this function returns the new width of the column being resized given
10397  * the column and x position of the cursor; the x cursor position is passed
10398  * in as a pointer and automagicly corrected if it's beyond min/max limits
10399  */
10400 static gint
10401 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10402                                 gint       i,
10403                                 gint      *x)
10404 {
10405   GtkTreeViewColumn *column;
10406   gint width;
10407   gboolean rtl;
10408
10409   /* first translate the x position from widget->window
10410    * to clist->clist_window
10411    */
10412   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10413   column = g_list_nth (tree_view->priv->columns, i)->data;
10414   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10415
10416   /* Clamp down the value */
10417   if (column->min_width == -1)
10418     width = MAX (column->button->requisition.width,
10419                  width);
10420   else
10421     width = MAX (column->min_width,
10422                  width);
10423   if (column->max_width != -1)
10424     width = MIN (width, column->max_width);
10425
10426   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10427
10428   return width;
10429 }
10430
10431
10432 /* FIXME this adjust_allocation is a big cut-and-paste from
10433  * GtkCList, needs to be some "official" way to do this
10434  * factored out.
10435  */
10436 typedef struct
10437 {
10438   GdkWindow *window;
10439   int dx;
10440   int dy;
10441 } ScrollData;
10442
10443 /* The window to which widget->window is relative */
10444 #define ALLOCATION_WINDOW(widget)               \
10445    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10446     (widget)->window :                          \
10447      gdk_window_get_parent ((widget)->window))
10448
10449 static void
10450 adjust_allocation_recurse (GtkWidget *widget,
10451                            gpointer   data)
10452 {
10453   ScrollData *scroll_data = data;
10454
10455   /* Need to really size allocate instead of just poking
10456    * into widget->allocation if the widget is not realized.
10457    * FIXME someone figure out why this was.
10458    */
10459   if (!GTK_WIDGET_REALIZED (widget))
10460     {
10461       if (GTK_WIDGET_VISIBLE (widget))
10462         {
10463           GdkRectangle tmp_rectangle = widget->allocation;
10464           tmp_rectangle.x += scroll_data->dx;
10465           tmp_rectangle.y += scroll_data->dy;
10466
10467           gtk_widget_size_allocate (widget, &tmp_rectangle);
10468         }
10469     }
10470   else
10471     {
10472       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10473         {
10474           widget->allocation.x += scroll_data->dx;
10475           widget->allocation.y += scroll_data->dy;
10476
10477           if (GTK_IS_CONTAINER (widget))
10478             gtk_container_forall (GTK_CONTAINER (widget),
10479                                   adjust_allocation_recurse,
10480                                   data);
10481         }
10482     }
10483 }
10484
10485 static void
10486 adjust_allocation (GtkWidget *widget,
10487                    int        dx,
10488                    int        dy)
10489 {
10490   ScrollData scroll_data;
10491
10492   if (GTK_WIDGET_REALIZED (widget))
10493     scroll_data.window = ALLOCATION_WINDOW (widget);
10494   else
10495     scroll_data.window = NULL;
10496
10497   scroll_data.dx = dx;
10498   scroll_data.dy = dy;
10499
10500   adjust_allocation_recurse (widget, &scroll_data);
10501 }
10502
10503 /* Callbacks */
10504 static void
10505 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10506                                   GtkTreeView   *tree_view)
10507 {
10508   if (GTK_WIDGET_REALIZED (tree_view))
10509     {
10510       gint dy;
10511
10512       gdk_window_move (tree_view->priv->bin_window,
10513                        - tree_view->priv->hadjustment->value,
10514                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10515       gdk_window_move (tree_view->priv->header_window,
10516                        - tree_view->priv->hadjustment->value,
10517                        0);
10518       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10519       if (dy && tree_view->priv->edited_column)
10520         {
10521           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10522             {
10523               GList *list;
10524               GtkWidget *widget;
10525               GtkTreeViewChild *child = NULL;
10526
10527               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10528               adjust_allocation (widget, 0, dy);
10529
10530               for (list = tree_view->priv->children; list; list = list->next)
10531                 {
10532                   child = (GtkTreeViewChild *)list->data;
10533                   if (child->widget == widget)
10534                     {
10535                       child->y += dy;
10536                       break;
10537                     }
10538                 }
10539             }
10540         }
10541       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10542
10543       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10544         {
10545           /* update our dy and top_row */
10546           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10547
10548           if (!tree_view->priv->in_top_row_to_dy)
10549             gtk_tree_view_dy_to_top_row (tree_view);
10550         }
10551     }
10552 }
10553
10554 \f
10555
10556 /* Public methods
10557  */
10558
10559 /**
10560  * gtk_tree_view_new:
10561  *
10562  * Creates a new #GtkTreeView widget.
10563  *
10564  * Return value: A newly created #GtkTreeView widget.
10565  **/
10566 GtkWidget *
10567 gtk_tree_view_new (void)
10568 {
10569   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10570 }
10571
10572 /**
10573  * gtk_tree_view_new_with_model:
10574  * @model: the model.
10575  *
10576  * Creates a new #GtkTreeView widget with the model initialized to @model.
10577  *
10578  * Return value: A newly created #GtkTreeView widget.
10579  **/
10580 GtkWidget *
10581 gtk_tree_view_new_with_model (GtkTreeModel *model)
10582 {
10583   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10584 }
10585
10586 /* Public Accessors
10587  */
10588
10589 /**
10590  * gtk_tree_view_get_model:
10591  * @tree_view: a #GtkTreeView
10592  *
10593  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10594  * model is unset.
10595  *
10596  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10597  **/
10598 GtkTreeModel *
10599 gtk_tree_view_get_model (GtkTreeView *tree_view)
10600 {
10601   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10602
10603   return tree_view->priv->model;
10604 }
10605
10606 /**
10607  * gtk_tree_view_set_model:
10608  * @tree_view: A #GtkTreeNode.
10609  * @model: The model.
10610  *
10611  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10612  * set, it will remove it before setting the new model.  If @model is %NULL,
10613  * then it will unset the old model.
10614  **/
10615 void
10616 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10617                          GtkTreeModel *model)
10618 {
10619   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10620
10621   if (model != NULL)
10622     g_return_if_fail (GTK_IS_TREE_MODEL (model));
10623
10624   if (model == tree_view->priv->model)
10625     return;
10626
10627   if (tree_view->priv->scroll_to_path)
10628     {
10629       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10630       tree_view->priv->scroll_to_path = NULL;
10631     }
10632
10633   if (tree_view->priv->model)
10634     {
10635       GList *tmplist = tree_view->priv->columns;
10636
10637       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10638       gtk_tree_view_stop_editing (tree_view, TRUE);
10639
10640       remove_expand_collapse_timeout (tree_view);
10641
10642       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10643                                             gtk_tree_view_row_changed,
10644                                             tree_view);
10645       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10646                                             gtk_tree_view_row_inserted,
10647                                             tree_view);
10648       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10649                                             gtk_tree_view_row_has_child_toggled,
10650                                             tree_view);
10651       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10652                                             gtk_tree_view_row_deleted,
10653                                             tree_view);
10654       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10655                                             gtk_tree_view_rows_reordered,
10656                                             tree_view);
10657
10658       for (; tmplist; tmplist = tmplist->next)
10659         _gtk_tree_view_column_unset_model (tmplist->data,
10660                                            tree_view->priv->model);
10661
10662       if (tree_view->priv->tree)
10663         gtk_tree_view_free_rbtree (tree_view);
10664
10665       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10666       tree_view->priv->drag_dest_row = NULL;
10667       gtk_tree_row_reference_free (tree_view->priv->cursor);
10668       tree_view->priv->cursor = NULL;
10669       gtk_tree_row_reference_free (tree_view->priv->anchor);
10670       tree_view->priv->anchor = NULL;
10671       gtk_tree_row_reference_free (tree_view->priv->top_row);
10672       tree_view->priv->top_row = NULL;
10673       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10674       tree_view->priv->last_button_press = NULL;
10675       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10676       tree_view->priv->last_button_press_2 = NULL;
10677       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10678       tree_view->priv->scroll_to_path = NULL;
10679
10680       tree_view->priv->scroll_to_column = NULL;
10681
10682       g_object_unref (tree_view->priv->model);
10683
10684       tree_view->priv->search_column = -1;
10685       tree_view->priv->fixed_height_check = 0;
10686       tree_view->priv->fixed_height = -1;
10687       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10688     }
10689
10690   tree_view->priv->model = model;
10691
10692   if (tree_view->priv->model)
10693     {
10694       gint i;
10695       GtkTreePath *path;
10696       GtkTreeIter iter;
10697       GtkTreeModelFlags flags;
10698
10699       if (tree_view->priv->search_column == -1)
10700         {
10701           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10702             {
10703               GType type = gtk_tree_model_get_column_type (model, i);
10704
10705               if (g_value_type_transformable (type, G_TYPE_STRING))
10706                 {
10707                   tree_view->priv->search_column = i;
10708                   break;
10709                 }
10710             }
10711         }
10712
10713       g_object_ref (tree_view->priv->model);
10714       g_signal_connect (tree_view->priv->model,
10715                         "row_changed",
10716                         G_CALLBACK (gtk_tree_view_row_changed),
10717                         tree_view);
10718       g_signal_connect (tree_view->priv->model,
10719                         "row_inserted",
10720                         G_CALLBACK (gtk_tree_view_row_inserted),
10721                         tree_view);
10722       g_signal_connect (tree_view->priv->model,
10723                         "row_has_child_toggled",
10724                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10725                         tree_view);
10726       g_signal_connect (tree_view->priv->model,
10727                         "row_deleted",
10728                         G_CALLBACK (gtk_tree_view_row_deleted),
10729                         tree_view);
10730       g_signal_connect (tree_view->priv->model,
10731                         "rows_reordered",
10732                         G_CALLBACK (gtk_tree_view_rows_reordered),
10733                         tree_view);
10734
10735       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10736       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10737         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10738       else
10739         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10740
10741       path = gtk_tree_path_new_first ();
10742       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10743         {
10744           tree_view->priv->tree = _gtk_rbtree_new ();
10745           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10746         }
10747       gtk_tree_path_free (path);
10748
10749       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10750       install_presize_handler (tree_view);
10751     }
10752
10753   g_object_notify (G_OBJECT (tree_view), "model");
10754
10755   if (tree_view->priv->selection)
10756   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10757
10758   if (GTK_WIDGET_REALIZED (tree_view))
10759     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10760 }
10761
10762 /**
10763  * gtk_tree_view_get_selection:
10764  * @tree_view: A #GtkTreeView.
10765  *
10766  * Gets the #GtkTreeSelection associated with @tree_view.
10767  *
10768  * Return value: A #GtkTreeSelection object.
10769  **/
10770 GtkTreeSelection *
10771 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10772 {
10773   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10774
10775   return tree_view->priv->selection;
10776 }
10777
10778 /**
10779  * gtk_tree_view_get_hadjustment:
10780  * @tree_view: A #GtkTreeView
10781  *
10782  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10783  *
10784  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10785  * used.
10786  **/
10787 GtkAdjustment *
10788 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10789 {
10790   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10791
10792   if (tree_view->priv->hadjustment == NULL)
10793     gtk_tree_view_set_hadjustment (tree_view, NULL);
10794
10795   return tree_view->priv->hadjustment;
10796 }
10797
10798 /**
10799  * gtk_tree_view_set_hadjustment:
10800  * @tree_view: A #GtkTreeView
10801  * @adjustment: The #GtkAdjustment to set, or %NULL
10802  *
10803  * Sets the #GtkAdjustment for the current horizontal aspect.
10804  **/
10805 void
10806 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10807                                GtkAdjustment *adjustment)
10808 {
10809   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10810
10811   gtk_tree_view_set_adjustments (tree_view,
10812                                  adjustment,
10813                                  tree_view->priv->vadjustment);
10814
10815   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10816 }
10817
10818 /**
10819  * gtk_tree_view_get_vadjustment:
10820  * @tree_view: A #GtkTreeView
10821  *
10822  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10823  *
10824  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10825  * used.
10826  **/
10827 GtkAdjustment *
10828 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10829 {
10830   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10831
10832   if (tree_view->priv->vadjustment == NULL)
10833     gtk_tree_view_set_vadjustment (tree_view, NULL);
10834
10835   return tree_view->priv->vadjustment;
10836 }
10837
10838 /**
10839  * gtk_tree_view_set_vadjustment:
10840  * @tree_view: A #GtkTreeView
10841  * @adjustment: The #GtkAdjustment to set, or %NULL
10842  *
10843  * Sets the #GtkAdjustment for the current vertical aspect.
10844  **/
10845 void
10846 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10847                                GtkAdjustment *adjustment)
10848 {
10849   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10850
10851   gtk_tree_view_set_adjustments (tree_view,
10852                                  tree_view->priv->hadjustment,
10853                                  adjustment);
10854
10855   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10856 }
10857
10858 /* Column and header operations */
10859
10860 /**
10861  * gtk_tree_view_get_headers_visible:
10862  * @tree_view: A #GtkTreeView.
10863  *
10864  * Returns %TRUE if the headers on the @tree_view are visible.
10865  *
10866  * Return value: Whether the headers are visible or not.
10867  **/
10868 gboolean
10869 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10870 {
10871   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10872
10873   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10874 }
10875
10876 /**
10877  * gtk_tree_view_set_headers_visible:
10878  * @tree_view: A #GtkTreeView.
10879  * @headers_visible: %TRUE if the headers are visible
10880  *
10881  * Sets the visibility state of the headers.
10882  **/
10883 void
10884 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10885                                    gboolean     headers_visible)
10886 {
10887   gint x, y;
10888   GList *list;
10889   GtkTreeViewColumn *column;
10890
10891   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10892
10893   headers_visible = !! headers_visible;
10894
10895   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10896     return;
10897
10898   if (headers_visible)
10899     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10900   else
10901     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10902
10903   if (GTK_WIDGET_REALIZED (tree_view))
10904     {
10905       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10906       if (headers_visible)
10907         {
10908           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));
10909
10910           if (GTK_WIDGET_MAPPED (tree_view))
10911             gtk_tree_view_map_buttons (tree_view);
10912         }
10913       else
10914         {
10915           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10916
10917           for (list = tree_view->priv->columns; list; list = list->next)
10918             {
10919               column = list->data;
10920               gtk_widget_unmap (column->button);
10921             }
10922           gdk_window_hide (tree_view->priv->header_window);
10923         }
10924     }
10925
10926   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10927   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10928   tree_view->priv->vadjustment->lower = 0;
10929   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10930   gtk_adjustment_changed (tree_view->priv->vadjustment);
10931
10932   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10933
10934   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10935 }
10936
10937 /**
10938  * gtk_tree_view_columns_autosize:
10939  * @tree_view: A #GtkTreeView.
10940  *
10941  * Resizes all columns to their optimal width. Only works after the
10942  * treeview has been realized.
10943  **/
10944 void
10945 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
10946 {
10947   gboolean dirty = FALSE;
10948   GList *list;
10949   GtkTreeViewColumn *column;
10950
10951   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10952
10953   for (list = tree_view->priv->columns; list; list = list->next)
10954     {
10955       column = list->data;
10956       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
10957         continue;
10958       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
10959       dirty = TRUE;
10960     }
10961
10962   if (dirty)
10963     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10964 }
10965
10966 /**
10967  * gtk_tree_view_set_headers_clickable:
10968  * @tree_view: A #GtkTreeView.
10969  * @setting: %TRUE if the columns are clickable.
10970  *
10971  * Allow the column title buttons to be clicked.
10972  **/
10973 void
10974 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
10975                                      gboolean   setting)
10976 {
10977   GList *list;
10978
10979   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10980
10981   for (list = tree_view->priv->columns; list; list = list->next)
10982     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
10983
10984   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
10985 }
10986
10987
10988 /**
10989  * gtk_tree_view_get_headers_clickable:
10990  * @tree_view: A #GtkTreeView.
10991  *
10992  * Returns whether all header columns are clickable.
10993  *
10994  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
10995  *
10996  * Since: 2.10
10997  **/
10998 gboolean
10999 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11000 {
11001   GList *list;
11002
11003   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11004
11005   for (list = tree_view->priv->columns; list; list = list->next)
11006     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11007       return FALSE;
11008
11009   return TRUE;
11010 }
11011
11012 /**
11013  * gtk_tree_view_set_rules_hint
11014  * @tree_view: a #GtkTreeView
11015  * @setting: %TRUE if the tree requires reading across rows
11016  *
11017  * This function tells GTK+ that the user interface for your
11018  * application requires users to read across tree rows and associate
11019  * cells with one another. By default, GTK+ will then render the tree
11020  * with alternating row colors. Do <emphasis>not</emphasis> use it
11021  * just because you prefer the appearance of the ruled tree; that's a
11022  * question for the theme. Some themes will draw tree rows in
11023  * alternating colors even when rules are turned off, and users who
11024  * prefer that appearance all the time can choose those themes. You
11025  * should call this function only as a <emphasis>semantic</emphasis>
11026  * hint to the theme engine that your tree makes alternating colors
11027  * useful from a functional standpoint (since it has lots of columns,
11028  * generally).
11029  *
11030  **/
11031 void
11032 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11033                               gboolean      setting)
11034 {
11035   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11036
11037   setting = setting != FALSE;
11038
11039   if (tree_view->priv->has_rules != setting)
11040     {
11041       tree_view->priv->has_rules = setting;
11042       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11043     }
11044
11045   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11046 }
11047
11048 /**
11049  * gtk_tree_view_get_rules_hint
11050  * @tree_view: a #GtkTreeView
11051  *
11052  * Gets the setting set by gtk_tree_view_set_rules_hint().
11053  *
11054  * Return value: %TRUE if rules are useful for the user of this tree
11055  **/
11056 gboolean
11057 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11058 {
11059   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11060
11061   return tree_view->priv->has_rules;
11062 }
11063
11064 /* Public Column functions
11065  */
11066
11067 /**
11068  * gtk_tree_view_append_column:
11069  * @tree_view: A #GtkTreeView.
11070  * @column: The #GtkTreeViewColumn to add.
11071  *
11072  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11073  * mode enabled, then @column must have its "sizing" property set to be
11074  * GTK_TREE_VIEW_COLUMN_FIXED.
11075  *
11076  * Return value: The number of columns in @tree_view after appending.
11077  **/
11078 gint
11079 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11080                              GtkTreeViewColumn *column)
11081 {
11082   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11083   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11084   g_return_val_if_fail (column->tree_view == NULL, -1);
11085
11086   return gtk_tree_view_insert_column (tree_view, column, -1);
11087 }
11088
11089
11090 /**
11091  * gtk_tree_view_remove_column:
11092  * @tree_view: A #GtkTreeView.
11093  * @column: The #GtkTreeViewColumn to remove.
11094  *
11095  * Removes @column from @tree_view.
11096  *
11097  * Return value: The number of columns in @tree_view after removing.
11098  **/
11099 gint
11100 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11101                              GtkTreeViewColumn *column)
11102 {
11103   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11104   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11105   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11106
11107   if (tree_view->priv->focus_column == column)
11108     tree_view->priv->focus_column = NULL;
11109
11110   if (tree_view->priv->edited_column == column)
11111     {
11112       gtk_tree_view_stop_editing (tree_view, TRUE);
11113
11114       /* no need to, but just to be sure ... */
11115       tree_view->priv->edited_column = NULL;
11116     }
11117
11118   g_signal_handlers_disconnect_by_func (column,
11119                                         G_CALLBACK (column_sizing_notify),
11120                                         tree_view);
11121
11122   _gtk_tree_view_column_unset_tree_view (column);
11123
11124   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11125   tree_view->priv->n_columns--;
11126
11127   if (GTK_WIDGET_REALIZED (tree_view))
11128     {
11129       GList *list;
11130
11131       _gtk_tree_view_column_unrealize_button (column);
11132       for (list = tree_view->priv->columns; list; list = list->next)
11133         {
11134           GtkTreeViewColumn *tmp_column;
11135
11136           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11137           if (tmp_column->visible)
11138             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11139         }
11140
11141       if (tree_view->priv->n_columns == 0 &&
11142           gtk_tree_view_get_headers_visible (tree_view))
11143         gdk_window_hide (tree_view->priv->header_window);
11144
11145       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11146     }
11147
11148   g_object_unref (column);
11149   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11150
11151   return tree_view->priv->n_columns;
11152 }
11153
11154 /**
11155  * gtk_tree_view_insert_column:
11156  * @tree_view: A #GtkTreeView.
11157  * @column: The #GtkTreeViewColumn to be inserted.
11158  * @position: The position to insert @column in.
11159  *
11160  * This inserts the @column into the @tree_view at @position.  If @position is
11161  * -1, then the column is inserted at the end. If @tree_view has
11162  * "fixed_height" mode enabled, then @column must have its "sizing" property
11163  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11164  *
11165  * Return value: The number of columns in @tree_view after insertion.
11166  **/
11167 gint
11168 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11169                              GtkTreeViewColumn *column,
11170                              gint               position)
11171 {
11172   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11173   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11174   g_return_val_if_fail (column->tree_view == NULL, -1);
11175
11176   if (tree_view->priv->fixed_height_mode)
11177     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11178                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11179
11180   g_object_ref_sink (column);
11181
11182   if (tree_view->priv->n_columns == 0 &&
11183       GTK_WIDGET_REALIZED (tree_view) &&
11184       gtk_tree_view_get_headers_visible (tree_view))
11185     {
11186       gdk_window_show (tree_view->priv->header_window);
11187     }
11188
11189   g_signal_connect (column, "notify::sizing",
11190                     G_CALLBACK (column_sizing_notify), tree_view);
11191
11192   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11193                                             column, position);
11194   tree_view->priv->n_columns++;
11195
11196   _gtk_tree_view_column_set_tree_view (column, tree_view);
11197
11198   if (GTK_WIDGET_REALIZED (tree_view))
11199     {
11200       GList *list;
11201
11202       _gtk_tree_view_column_realize_button (column);
11203
11204       for (list = tree_view->priv->columns; list; list = list->next)
11205         {
11206           column = GTK_TREE_VIEW_COLUMN (list->data);
11207           if (column->visible)
11208             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11209         }
11210       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11211     }
11212
11213   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11214
11215   return tree_view->priv->n_columns;
11216 }
11217
11218 /**
11219  * gtk_tree_view_insert_column_with_attributes:
11220  * @tree_view: A #GtkTreeView
11221  * @position: The position to insert the new column in.
11222  * @title: The title to set the header to.
11223  * @cell: The #GtkCellRenderer.
11224  * @Varargs: A %NULL-terminated list of attributes.
11225  *
11226  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11227  * @position.  If @position is -1, then the newly created column is inserted at
11228  * the end.  The column is initialized with the attributes given. If @tree_view
11229  * has "fixed_height" mode enabled, then the new column will have its sizing
11230  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11231  *
11232  * Return value: The number of columns in @tree_view after insertion.
11233  **/
11234 gint
11235 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11236                                              gint             position,
11237                                              const gchar     *title,
11238                                              GtkCellRenderer *cell,
11239                                              ...)
11240 {
11241   GtkTreeViewColumn *column;
11242   gchar *attribute;
11243   va_list args;
11244   gint column_id;
11245
11246   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11247
11248   column = gtk_tree_view_column_new ();
11249   if (tree_view->priv->fixed_height_mode)
11250     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11251
11252   gtk_tree_view_column_set_title (column, title);
11253   gtk_tree_view_column_pack_start (column, cell, TRUE);
11254
11255   va_start (args, cell);
11256
11257   attribute = va_arg (args, gchar *);
11258
11259   while (attribute != NULL)
11260     {
11261       column_id = va_arg (args, gint);
11262       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11263       attribute = va_arg (args, gchar *);
11264     }
11265
11266   va_end (args);
11267
11268   gtk_tree_view_insert_column (tree_view, column, position);
11269
11270   return tree_view->priv->n_columns;
11271 }
11272
11273 /**
11274  * gtk_tree_view_insert_column_with_data_func:
11275  * @tree_view: a #GtkTreeView
11276  * @position: Position to insert, -1 for append
11277  * @title: column title
11278  * @cell: cell renderer for column
11279  * @func: function to set attributes of cell renderer
11280  * @data: data for @func
11281  * @dnotify: destroy notifier for @data
11282  *
11283  * Convenience function that inserts a new column into the #GtkTreeView
11284  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11285  * attributes (normally using data from the model). See also
11286  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11287  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11288  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11289  *
11290  * Return value: number of columns in the tree view post-insert
11291  **/
11292 gint
11293 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11294                                              gint                       position,
11295                                              const gchar               *title,
11296                                              GtkCellRenderer           *cell,
11297                                              GtkTreeCellDataFunc        func,
11298                                              gpointer                   data,
11299                                              GDestroyNotify             dnotify)
11300 {
11301   GtkTreeViewColumn *column;
11302
11303   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11304
11305   column = gtk_tree_view_column_new ();
11306   if (tree_view->priv->fixed_height_mode)
11307     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11308
11309   gtk_tree_view_column_set_title (column, title);
11310   gtk_tree_view_column_pack_start (column, cell, TRUE);
11311   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11312
11313   gtk_tree_view_insert_column (tree_view, column, position);
11314
11315   return tree_view->priv->n_columns;
11316 }
11317
11318 /**
11319  * gtk_tree_view_get_column:
11320  * @tree_view: A #GtkTreeView.
11321  * @n: The position of the column, counting from 0.
11322  *
11323  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11324  *
11325  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11326  * range of columns.
11327  **/
11328 GtkTreeViewColumn *
11329 gtk_tree_view_get_column (GtkTreeView *tree_view,
11330                           gint         n)
11331 {
11332   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11333
11334   if (n < 0 || n >= tree_view->priv->n_columns)
11335     return NULL;
11336
11337   if (tree_view->priv->columns == NULL)
11338     return NULL;
11339
11340   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11341 }
11342
11343 /**
11344  * gtk_tree_view_get_columns:
11345  * @tree_view: A #GtkTreeView
11346  *
11347  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11348  * The returned list must be freed with g_list_free ().
11349  *
11350  * Return value: A list of #GtkTreeViewColumn s
11351  **/
11352 GList *
11353 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11354 {
11355   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11356
11357   return g_list_copy (tree_view->priv->columns);
11358 }
11359
11360 /**
11361  * gtk_tree_view_move_column_after:
11362  * @tree_view: A #GtkTreeView
11363  * @column: The #GtkTreeViewColumn to be moved.
11364  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11365  *
11366  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11367  * @column is placed in the first position.
11368  **/
11369 void
11370 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11371                                  GtkTreeViewColumn *column,
11372                                  GtkTreeViewColumn *base_column)
11373 {
11374   GList *column_list_el, *base_el = NULL;
11375
11376   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11377
11378   column_list_el = g_list_find (tree_view->priv->columns, column);
11379   g_return_if_fail (column_list_el != NULL);
11380
11381   if (base_column)
11382     {
11383       base_el = g_list_find (tree_view->priv->columns, base_column);
11384       g_return_if_fail (base_el != NULL);
11385     }
11386
11387   if (column_list_el->prev == base_el)
11388     return;
11389
11390   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11391   if (base_el == NULL)
11392     {
11393       column_list_el->prev = NULL;
11394       column_list_el->next = tree_view->priv->columns;
11395       if (column_list_el->next)
11396         column_list_el->next->prev = column_list_el;
11397       tree_view->priv->columns = column_list_el;
11398     }
11399   else
11400     {
11401       column_list_el->prev = base_el;
11402       column_list_el->next = base_el->next;
11403       if (column_list_el->next)
11404         column_list_el->next->prev = column_list_el;
11405       base_el->next = column_list_el;
11406     }
11407
11408   if (GTK_WIDGET_REALIZED (tree_view))
11409     {
11410       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11411       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view));
11412     }
11413
11414   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11415 }
11416
11417 /**
11418  * gtk_tree_view_set_expander_column:
11419  * @tree_view: A #GtkTreeView
11420  * @column: %NULL, or the column to draw the expander arrow at.
11421  *
11422  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11423  * If @column is %NULL, then the expander arrow is always at the first
11424  * visible column.
11425  *
11426  * If you do not want expander arrow to appear in your tree, set the
11427  * expander column to a hidden column.
11428  **/
11429 void
11430 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11431                                    GtkTreeViewColumn *column)
11432 {
11433   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11434   if (column != NULL)
11435     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
11436
11437   if (tree_view->priv->expander_column != column)
11438     {
11439       GList *list;
11440
11441       if (column)
11442         {
11443           /* Confirm that column is in tree_view */
11444           for (list = tree_view->priv->columns; list; list = list->next)
11445             if (list->data == column)
11446               break;
11447           g_return_if_fail (list != NULL);
11448         }
11449
11450       tree_view->priv->expander_column = column;
11451       g_object_notify (G_OBJECT (tree_view), "expander-column");
11452     }
11453 }
11454
11455 /**
11456  * gtk_tree_view_get_expander_column:
11457  * @tree_view: A #GtkTreeView
11458  *
11459  * Returns the column that is the current expander column.  This
11460  * column has the expander arrow drawn next to it.
11461  *
11462  * Return value: The expander column.
11463  **/
11464 GtkTreeViewColumn *
11465 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11466 {
11467   GList *list;
11468
11469   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11470
11471   for (list = tree_view->priv->columns; list; list = list->next)
11472     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11473       return (GtkTreeViewColumn *) list->data;
11474   return NULL;
11475 }
11476
11477
11478 /**
11479  * gtk_tree_view_set_column_drag_function:
11480  * @tree_view: A #GtkTreeView.
11481  * @func: A function to determine which columns are reorderable, or %NULL.
11482  * @user_data: User data to be passed to @func, or %NULL
11483  * @destroy: Destroy notifier for @user_data, or %NULL
11484  *
11485  * Sets a user function for determining where a column may be dropped when
11486  * dragged.  This function is called on every column pair in turn at the
11487  * beginning of a column drag to determine where a drop can take place.  The
11488  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11489  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11490  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11491  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11492  * @tree_view reverts to the default behavior of allowing all columns to be
11493  * dropped everywhere.
11494  **/
11495 void
11496 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11497                                         GtkTreeViewColumnDropFunc  func,
11498                                         gpointer                   user_data,
11499                                         GtkDestroyNotify           destroy)
11500 {
11501   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11502
11503   if (tree_view->priv->column_drop_func_data_destroy)
11504     (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
11505
11506   tree_view->priv->column_drop_func = func;
11507   tree_view->priv->column_drop_func_data = user_data;
11508   tree_view->priv->column_drop_func_data_destroy = destroy;
11509 }
11510
11511 /**
11512  * gtk_tree_view_scroll_to_point:
11513  * @tree_view: a #GtkTreeView
11514  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11515  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11516  *
11517  * Scrolls the tree view such that the top-left corner of the visible
11518  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11519  * in tree coordinates.  The @tree_view must be realized before
11520  * this function is called.  If it isn't, you probably want to be
11521  * using gtk_tree_view_scroll_to_cell().
11522  *
11523  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11524  **/
11525 void
11526 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11527                                gint         tree_x,
11528                                gint         tree_y)
11529 {
11530   GtkAdjustment *hadj;
11531   GtkAdjustment *vadj;
11532
11533   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11534   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11535
11536   hadj = tree_view->priv->hadjustment;
11537   vadj = tree_view->priv->vadjustment;
11538
11539   if (tree_x != -1)
11540     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11541   if (tree_y != -1)
11542     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11543 }
11544
11545 /**
11546  * gtk_tree_view_scroll_to_cell:
11547  * @tree_view: A #GtkTreeView.
11548  * @path: The path of the row to move to, or %NULL.
11549  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11550  * @use_align: whether to use alignment arguments, or %FALSE.
11551  * @row_align: The vertical alignment of the row specified by @path.
11552  * @col_align: The horizontal alignment of the column specified by @column.
11553  *
11554  * Moves the alignments of @tree_view to the position specified by @column and
11555  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11556  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11557  * or @path need to be non-%NULL.  @row_align determines where the row is
11558  * placed, and @col_align determines where @column is placed.  Both are expected
11559  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11560  * right/bottom alignment, 0.5 means center.
11561  *
11562  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11563  * tree does the minimum amount of work to scroll the cell onto the screen.
11564  * This means that the cell will be scrolled to the edge closest to its current
11565  * position.  If the cell is currently visible on the screen, nothing is done.
11566  *
11567  * This function only works if the model is set, and @path is a valid row on the
11568  * model.  If the model changes before the @tree_view is realized, the centered
11569  * path will be modified to reflect this change.
11570  **/
11571 void
11572 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11573                               GtkTreePath       *path,
11574                               GtkTreeViewColumn *column,
11575                               gboolean           use_align,
11576                               gfloat             row_align,
11577                               gfloat             col_align)
11578 {
11579   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11580   g_return_if_fail (tree_view->priv->model != NULL);
11581   g_return_if_fail (tree_view->priv->tree != NULL);
11582   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11583   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11584   g_return_if_fail (path != NULL || column != NULL);
11585
11586 #if 0
11587   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11588            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11589 #endif
11590   row_align = CLAMP (row_align, 0.0, 1.0);
11591   col_align = CLAMP (col_align, 0.0, 1.0);
11592
11593
11594   /* Note: Despite the benefits that come from having one code path for the
11595    * scrolling code, we short-circuit validate_visible_area's immplementation as
11596    * it is much slower than just going to the point.
11597    */
11598   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11599       ! GTK_WIDGET_REALIZED (tree_view) ||
11600       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11601       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11602     {
11603       if (tree_view->priv->scroll_to_path)
11604         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11605
11606       tree_view->priv->scroll_to_path = NULL;
11607       tree_view->priv->scroll_to_column = NULL;
11608
11609       if (path)
11610         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11611       if (column)
11612         tree_view->priv->scroll_to_column = column;
11613       tree_view->priv->scroll_to_use_align = use_align;
11614       tree_view->priv->scroll_to_row_align = row_align;
11615       tree_view->priv->scroll_to_col_align = col_align;
11616
11617       install_presize_handler (tree_view);
11618     }
11619   else
11620     {
11621       GdkRectangle cell_rect;
11622       GdkRectangle vis_rect;
11623       gint dest_x, dest_y;
11624
11625       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11626       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11627
11628       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11629
11630       dest_x = vis_rect.x;
11631       dest_y = vis_rect.y;
11632
11633       if (column)
11634         {
11635           if (use_align)
11636             {
11637               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11638             }
11639           else
11640             {
11641               if (cell_rect.x < vis_rect.x)
11642                 dest_x = cell_rect.x;
11643               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11644                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11645             }
11646         }
11647
11648       if (path)
11649         {
11650           if (use_align)
11651             {
11652               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11653               dest_y = MAX (dest_y, 0);
11654             }
11655           else
11656             {
11657               if (cell_rect.y < vis_rect.y)
11658                 dest_y = cell_rect.y;
11659               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11660                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11661             }
11662         }
11663
11664       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11665     }
11666 }
11667
11668 /**
11669  * gtk_tree_view_row_activated:
11670  * @tree_view: A #GtkTreeView
11671  * @path: The #GtkTreePath to be activated.
11672  * @column: The #GtkTreeViewColumn to be activated.
11673  *
11674  * Activates the cell determined by @path and @column.
11675  **/
11676 void
11677 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11678                              GtkTreePath       *path,
11679                              GtkTreeViewColumn *column)
11680 {
11681   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11682
11683   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11684 }
11685
11686
11687 static void
11688 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11689                                           GtkRBNode *node,
11690                                           gpointer   data)
11691 {
11692   GtkTreeView *tree_view = data;
11693
11694   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11695       node->children)
11696     {
11697       GtkTreePath *path;
11698       GtkTreeIter iter;
11699
11700       path = _gtk_tree_view_find_path (tree_view, tree, node);
11701       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11702
11703       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11704
11705       gtk_tree_path_free (path);
11706     }
11707
11708   if (node->children)
11709     _gtk_rbtree_traverse (node->children,
11710                           node->children->root,
11711                           G_PRE_ORDER,
11712                           gtk_tree_view_expand_all_emission_helper,
11713                           tree_view);
11714 }
11715
11716 /**
11717  * gtk_tree_view_expand_all:
11718  * @tree_view: A #GtkTreeView.
11719  *
11720  * Recursively expands all nodes in the @tree_view.
11721  **/
11722 void
11723 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11724 {
11725   GtkTreePath *path;
11726   GtkRBTree *tree;
11727   GtkRBNode *node;
11728
11729   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11730
11731   if (tree_view->priv->tree == NULL)
11732     return;
11733
11734   path = gtk_tree_path_new_first ();
11735   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11736
11737   while (node)
11738     {
11739       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11740       node = _gtk_rbtree_next (tree, node);
11741       gtk_tree_path_next (path);
11742   }
11743
11744   gtk_tree_path_free (path);
11745 }
11746
11747 /* Timeout to animate the expander during expands and collapses */
11748 static gboolean
11749 expand_collapse_timeout (gpointer data)
11750 {
11751   return do_expand_collapse (data);
11752 }
11753
11754 static void
11755 add_expand_collapse_timeout (GtkTreeView *tree_view,
11756                              GtkRBTree   *tree,
11757                              GtkRBNode   *node,
11758                              gboolean     expand)
11759 {
11760   if (tree_view->priv->expand_collapse_timeout != 0)
11761     return;
11762
11763   tree_view->priv->expand_collapse_timeout =
11764       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11765   tree_view->priv->expanded_collapsed_tree = tree;
11766   tree_view->priv->expanded_collapsed_node = node;
11767
11768   if (expand)
11769     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11770   else
11771     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11772 }
11773
11774 static void
11775 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11776 {
11777   if (tree_view->priv->expand_collapse_timeout)
11778     {
11779       g_source_remove (tree_view->priv->expand_collapse_timeout);
11780       tree_view->priv->expand_collapse_timeout = 0;
11781     }
11782
11783   if (tree_view->priv->expanded_collapsed_node != NULL)
11784     {
11785       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11786       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11787
11788       tree_view->priv->expanded_collapsed_node = NULL;
11789     }
11790 }
11791
11792 static void
11793 cancel_arrow_animation (GtkTreeView *tree_view)
11794 {
11795   if (tree_view->priv->expand_collapse_timeout)
11796     {
11797       while (do_expand_collapse (tree_view));
11798
11799       remove_expand_collapse_timeout (tree_view);
11800     }
11801 }
11802
11803 static gboolean
11804 do_expand_collapse (GtkTreeView *tree_view)
11805 {
11806   GtkRBNode *node;
11807   GtkRBTree *tree;
11808   gboolean expanding;
11809   gboolean redraw;
11810
11811   redraw = FALSE;
11812   expanding = TRUE;
11813
11814   node = tree_view->priv->expanded_collapsed_node;
11815   tree = tree_view->priv->expanded_collapsed_tree;
11816
11817   if (node->children == NULL)
11818     expanding = FALSE;
11819
11820   if (expanding)
11821     {
11822       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11823         {
11824           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11825           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11826
11827           redraw = TRUE;
11828
11829         }
11830       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11831         {
11832           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11833
11834           redraw = TRUE;
11835         }
11836     }
11837   else
11838     {
11839       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11840         {
11841           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11842           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11843
11844           redraw = TRUE;
11845         }
11846       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11847         {
11848           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11849
11850           redraw = TRUE;
11851
11852         }
11853     }
11854
11855   if (redraw)
11856     {
11857       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11858
11859       return TRUE;
11860     }
11861
11862   return FALSE;
11863 }
11864
11865 /**
11866  * gtk_tree_view_collapse_all:
11867  * @tree_view: A #GtkTreeView.
11868  *
11869  * Recursively collapses all visible, expanded nodes in @tree_view.
11870  **/
11871 void
11872 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11873 {
11874   GtkRBTree *tree;
11875   GtkRBNode *node;
11876   GtkTreePath *path;
11877   gint *indices;
11878
11879   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11880
11881   if (tree_view->priv->tree == NULL)
11882     return;
11883
11884   path = gtk_tree_path_new ();
11885   gtk_tree_path_down (path);
11886   indices = gtk_tree_path_get_indices (path);
11887
11888   tree = tree_view->priv->tree;
11889   node = tree->root;
11890   while (node && node->left != tree->nil)
11891     node = node->left;
11892
11893   while (node)
11894     {
11895       if (node->children)
11896         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11897       indices[0]++;
11898       node = _gtk_rbtree_next (tree, node);
11899     }
11900
11901   gtk_tree_path_free (path);
11902 }
11903
11904 /**
11905  * gtk_tree_view_expand_to_path:
11906  * @tree_view: A #GtkTreeView.
11907  * @path: path to a row.
11908  *
11909  * Expands the row at @path. This will also expand all parent rows of
11910  * @path as necessary.
11911  *
11912  * Since: 2.2
11913  **/
11914 void
11915 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11916                               GtkTreePath *path)
11917 {
11918   gint i, depth;
11919   gint *indices;
11920   GtkTreePath *tmp;
11921
11922   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11923   g_return_if_fail (path != NULL);
11924
11925   depth = gtk_tree_path_get_depth (path);
11926   indices = gtk_tree_path_get_indices (path);
11927
11928   tmp = gtk_tree_path_new ();
11929   g_return_if_fail (tmp != NULL);
11930
11931   for (i = 0; i < depth; i++)
11932     {
11933       gtk_tree_path_append_index (tmp, indices[i]);
11934       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11935     }
11936
11937   gtk_tree_path_free (tmp);
11938 }
11939
11940 /* FIXME the bool return values for expand_row and collapse_row are
11941  * not analagous; they should be TRUE if the row had children and
11942  * was not already in the requested state.
11943  */
11944
11945
11946 static gboolean
11947 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
11948                                GtkTreePath *path,
11949                                GtkRBTree   *tree,
11950                                GtkRBNode   *node,
11951                                gboolean     open_all,
11952                                gboolean     animate)
11953 {
11954   GtkTreeIter iter;
11955   GtkTreeIter temp;
11956   gboolean expand;
11957
11958   if (animate)
11959     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11960                   "gtk-enable-animations", &animate,
11961                   NULL);
11962
11963   remove_auto_expand_timeout (tree_view);
11964
11965   if (node->children && !open_all)
11966     return FALSE;
11967
11968   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
11969     return FALSE;
11970
11971   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11972   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11973     return FALSE;
11974
11975
11976    if (node->children && open_all)
11977     {
11978       gboolean retval = FALSE;
11979       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
11980
11981       gtk_tree_path_append_index (tmp_path, 0);
11982       tree = node->children;
11983       node = tree->root;
11984       while (node->left != tree->nil)
11985         node = node->left;
11986       /* try to expand the children */
11987       do
11988         {
11989          gboolean t;
11990          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
11991                                             TRUE, animate);
11992          if (t)
11993            retval = TRUE;
11994
11995          gtk_tree_path_next (tmp_path);
11996          node = _gtk_rbtree_next (tree, node);
11997        }
11998       while (node != NULL);
11999
12000       gtk_tree_path_free (tmp_path);
12001
12002       return retval;
12003     }
12004
12005   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12006
12007   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12008     return FALSE;
12009
12010   if (expand)
12011     return FALSE;
12012
12013   node->children = _gtk_rbtree_new ();
12014   node->children->parent_tree = tree;
12015   node->children->parent_node = node;
12016
12017   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12018
12019   gtk_tree_view_build_tree (tree_view,
12020                             node->children,
12021                             &temp,
12022                             gtk_tree_path_get_depth (path) + 1,
12023                             open_all);
12024
12025   remove_expand_collapse_timeout (tree_view);
12026
12027   if (animate)
12028     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12029
12030   install_presize_handler (tree_view);
12031
12032   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12033   if (open_all && node->children)
12034     {
12035       _gtk_rbtree_traverse (node->children,
12036                             node->children->root,
12037                             G_PRE_ORDER,
12038                             gtk_tree_view_expand_all_emission_helper,
12039                             tree_view);
12040     }
12041   return TRUE;
12042 }
12043
12044
12045 /**
12046  * gtk_tree_view_expand_row:
12047  * @tree_view: a #GtkTreeView
12048  * @path: path to a row
12049  * @open_all: whether to recursively expand, or just expand immediate children
12050  *
12051  * Opens the row so its children are visible.
12052  *
12053  * Return value: %TRUE if the row existed and had children
12054  **/
12055 gboolean
12056 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12057                           GtkTreePath *path,
12058                           gboolean     open_all)
12059 {
12060   GtkRBTree *tree;
12061   GtkRBNode *node;
12062
12063   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12064   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12065   g_return_val_if_fail (path != NULL, FALSE);
12066
12067   if (_gtk_tree_view_find_node (tree_view,
12068                                 path,
12069                                 &tree,
12070                                 &node))
12071     return FALSE;
12072
12073   if (tree != NULL)
12074     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12075   else
12076     return FALSE;
12077 }
12078
12079 static gboolean
12080 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12081                                  GtkTreePath *path,
12082                                  GtkRBTree   *tree,
12083                                  GtkRBNode   *node,
12084                                  gboolean     animate)
12085 {
12086   GtkTreeIter iter;
12087   GtkTreeIter children;
12088   gboolean collapse;
12089   gint x, y;
12090   GList *list;
12091   GdkWindow *child, *parent;
12092
12093   if (animate)
12094     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12095                   "gtk-enable-animations", &animate,
12096                   NULL);
12097
12098   remove_auto_expand_timeout (tree_view);
12099
12100   if (node->children == NULL)
12101     return FALSE;
12102
12103   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12104
12105   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12106
12107   if (collapse)
12108     return FALSE;
12109
12110   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12111    * a chance to prelight the correct node below */
12112
12113   if (tree_view->priv->prelight_tree)
12114     {
12115       GtkRBTree *parent_tree;
12116       GtkRBNode *parent_node;
12117
12118       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12119       parent_node = tree_view->priv->prelight_tree->parent_node;
12120       while (parent_tree)
12121         {
12122           if (parent_tree == tree && parent_node == node)
12123             {
12124               ensure_unprelighted (tree_view);
12125               break;
12126             }
12127           parent_node = parent_tree->parent_node;
12128           parent_tree = parent_tree->parent_tree;
12129         }
12130     }
12131
12132   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12133
12134   for (list = tree_view->priv->columns; list; list = list->next)
12135     {
12136       GtkTreeViewColumn *column = list->data;
12137
12138       if (column->visible == FALSE)
12139         continue;
12140       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12141         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12142     }
12143
12144   if (tree_view->priv->destroy_count_func)
12145     {
12146       GtkTreePath *child_path;
12147       gint child_count = 0;
12148       child_path = gtk_tree_path_copy (path);
12149       gtk_tree_path_down (child_path);
12150       if (node->children)
12151         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12152       (* tree_view->priv->destroy_count_func) (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12153       gtk_tree_path_free (child_path);
12154     }
12155
12156   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12157     {
12158       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12159
12160       if (gtk_tree_path_is_ancestor (path, cursor_path))
12161         {
12162           gtk_tree_row_reference_free (tree_view->priv->cursor);
12163           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12164                                                                       tree_view->priv->model,
12165                                                                       path);
12166         }
12167       gtk_tree_path_free (cursor_path);
12168     }
12169
12170   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12171     {
12172       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12173       if (gtk_tree_path_is_ancestor (path, anchor_path))
12174         {
12175           gtk_tree_row_reference_free (tree_view->priv->anchor);
12176           tree_view->priv->anchor = NULL;
12177         }
12178       gtk_tree_path_free (anchor_path);
12179     }
12180
12181   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12182     {
12183       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12184       if (gtk_tree_path_is_ancestor (path, lsc))
12185         {
12186           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12187           tree_view->priv->last_button_press = NULL;
12188         }
12189       gtk_tree_path_free (lsc);
12190     }
12191
12192   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12193     {
12194       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12195       if (gtk_tree_path_is_ancestor (path, lsc))
12196         {
12197           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12198           tree_view->priv->last_button_press_2 = NULL;
12199         }
12200       gtk_tree_path_free (lsc);
12201     }
12202
12203   remove_expand_collapse_timeout (tree_view);
12204
12205   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12206     {
12207       _gtk_rbtree_remove (node->children);
12208       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12209     }
12210   else
12211     _gtk_rbtree_remove (node->children);
12212
12213   if (animate)
12214     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12215
12216   if (GTK_WIDGET_MAPPED (tree_view))
12217     {
12218       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12219     }
12220
12221   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12222
12223   if (GTK_WIDGET_MAPPED (tree_view))
12224     {
12225       /* now that we've collapsed all rows, we want to try to set the prelight
12226        * again. To do this, we fake a motion event and send it to ourselves. */
12227
12228       child = tree_view->priv->bin_window;
12229       parent = gdk_window_get_parent (child);
12230
12231       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12232         {
12233           GdkEventMotion event;
12234           gint child_x, child_y;
12235
12236           gdk_window_get_position (child, &child_x, &child_y);
12237
12238           event.window = tree_view->priv->bin_window;
12239           event.x = x - child_x;
12240           event.y = y - child_y;
12241
12242           /* despite the fact this isn't a real event, I'm almost positive it will
12243            * never trigger a drag event.  maybe_drag is the only function that uses
12244            * more than just event.x and event.y. */
12245           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12246         }
12247     }
12248
12249   return TRUE;
12250 }
12251
12252 /**
12253  * gtk_tree_view_collapse_row:
12254  * @tree_view: a #GtkTreeView
12255  * @path: path to a row in the @tree_view
12256  *
12257  * Collapses a row (hides its child rows, if they exist).
12258  *
12259  * Return value: %TRUE if the row was collapsed.
12260  **/
12261 gboolean
12262 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12263                             GtkTreePath *path)
12264 {
12265   GtkRBTree *tree;
12266   GtkRBNode *node;
12267
12268   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12269   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12270   g_return_val_if_fail (path != NULL, FALSE);
12271
12272   if (_gtk_tree_view_find_node (tree_view,
12273                                 path,
12274                                 &tree,
12275                                 &node))
12276     return FALSE;
12277
12278   if (tree == NULL || node->children == NULL)
12279     return FALSE;
12280
12281   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12282 }
12283
12284 static void
12285 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12286                                         GtkRBTree              *tree,
12287                                         GtkTreePath            *path,
12288                                         GtkTreeViewMappingFunc  func,
12289                                         gpointer                user_data)
12290 {
12291   GtkRBNode *node;
12292
12293   if (tree == NULL || tree->root == NULL)
12294     return;
12295
12296   node = tree->root;
12297
12298   while (node && node->left != tree->nil)
12299     node = node->left;
12300
12301   while (node)
12302     {
12303       if (node->children)
12304         {
12305           (* func) (tree_view, path, user_data);
12306           gtk_tree_path_down (path);
12307           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12308           gtk_tree_path_up (path);
12309         }
12310       gtk_tree_path_next (path);
12311       node = _gtk_rbtree_next (tree, node);
12312     }
12313 }
12314
12315 /**
12316  * gtk_tree_view_map_expanded_rows:
12317  * @tree_view: A #GtkTreeView
12318  * @func: A function to be called
12319  * @data: User data to be passed to the function.
12320  *
12321  * Calls @func on all expanded rows.
12322  **/
12323 void
12324 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12325                                  GtkTreeViewMappingFunc  func,
12326                                  gpointer                user_data)
12327 {
12328   GtkTreePath *path;
12329
12330   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12331   g_return_if_fail (func != NULL);
12332
12333   path = gtk_tree_path_new_first ();
12334
12335   gtk_tree_view_map_expanded_rows_helper (tree_view,
12336                                           tree_view->priv->tree,
12337                                           path, func, user_data);
12338
12339   gtk_tree_path_free (path);
12340 }
12341
12342 /**
12343  * gtk_tree_view_row_expanded:
12344  * @tree_view: A #GtkTreeView.
12345  * @path: A #GtkTreePath to test expansion state.
12346  *
12347  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12348  *
12349  * Return value: %TRUE if #path is expanded.
12350  **/
12351 gboolean
12352 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12353                             GtkTreePath *path)
12354 {
12355   GtkRBTree *tree;
12356   GtkRBNode *node;
12357
12358   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12359   g_return_val_if_fail (path != NULL, FALSE);
12360
12361   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12362
12363   if (node == NULL)
12364     return FALSE;
12365
12366   return (node->children != NULL);
12367 }
12368
12369 /**
12370  * gtk_tree_view_get_reorderable:
12371  * @tree_view: a #GtkTreeView
12372  *
12373  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12374  * gtk_tree_view_set_reorderable().
12375  *
12376  * Return value: %TRUE if the tree can be reordered.
12377  **/
12378 gboolean
12379 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12380 {
12381   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12382
12383   return tree_view->priv->reorderable;
12384 }
12385
12386 /**
12387  * gtk_tree_view_set_reorderable:
12388  * @tree_view: A #GtkTreeView.
12389  * @reorderable: %TRUE, if the tree can be reordered.
12390  *
12391  * This function is a convenience function to allow you to reorder models that
12392  * support the #GtkDragSourceIface and the #GtkDragDestIface.  Both
12393  * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
12394  * the user can reorder the model by dragging and dropping rows.  The
12395  * developer can listen to these changes by connecting to the model's
12396  * row_inserted and row_deleted signals.
12397  *
12398  * This function does not give you any degree of control over the order -- any
12399  * reordering is allowed.  If more control is needed, you should probably
12400  * handle drag and drop manually.
12401  **/
12402 void
12403 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12404                                gboolean     reorderable)
12405 {
12406   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12407
12408   reorderable = reorderable != FALSE;
12409
12410   if (tree_view->priv->reorderable == reorderable)
12411     return;
12412
12413   if (reorderable)
12414     {
12415       const GtkTargetEntry row_targets[] = {
12416         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12417       };
12418
12419       gtk_tree_view_enable_model_drag_source (tree_view,
12420                                               GDK_BUTTON1_MASK,
12421                                               row_targets,
12422                                               G_N_ELEMENTS (row_targets),
12423                                               GDK_ACTION_MOVE);
12424       gtk_tree_view_enable_model_drag_dest (tree_view,
12425                                             row_targets,
12426                                             G_N_ELEMENTS (row_targets),
12427                                             GDK_ACTION_MOVE);
12428     }
12429   else
12430     {
12431       gtk_tree_view_unset_rows_drag_source (tree_view);
12432       gtk_tree_view_unset_rows_drag_dest (tree_view);
12433     }
12434
12435   tree_view->priv->reorderable = reorderable;
12436
12437   g_object_notify (G_OBJECT (tree_view), "reorderable");
12438 }
12439
12440 static void
12441 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12442                                GtkTreePath     *path,
12443                                gboolean         clear_and_select,
12444                                gboolean         clamp_node)
12445 {
12446   GtkRBTree *tree = NULL;
12447   GtkRBNode *node = NULL;
12448
12449   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12450     {
12451       GtkTreePath *cursor_path;
12452       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12453       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12454       gtk_tree_path_free (cursor_path);
12455     }
12456
12457   gtk_tree_row_reference_free (tree_view->priv->cursor);
12458   tree_view->priv->cursor = NULL;
12459
12460   /* One cannot set the cursor on a separator. */
12461   if (!row_is_separator (tree_view, NULL, path))
12462     {
12463       tree_view->priv->cursor =
12464         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12465                                           tree_view->priv->model,
12466                                           path);
12467       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12468     }
12469
12470   if (tree != NULL)
12471     {
12472       GtkRBTree *new_tree = NULL;
12473       GtkRBNode *new_node = NULL;
12474
12475       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12476         {
12477           GtkTreeSelectMode mode = 0;
12478
12479           if (tree_view->priv->ctrl_pressed)
12480             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12481           if (tree_view->priv->shift_pressed)
12482             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12483
12484           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12485                                                     node, tree, path, mode,
12486                                                     FALSE);
12487         }
12488
12489       /* We have to re-find tree and node here again, somebody might have
12490        * cleared the node or the whole tree in the GtkTreeSelection::changed
12491        * callback. If the nodes differ we bail out here.
12492        */
12493       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12494
12495       if (tree != new_tree || node != new_node)
12496         return;
12497
12498       if (clamp_node)
12499         {
12500           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12501           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12502         }
12503     }
12504
12505   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12506 }
12507
12508 /**
12509  * gtk_tree_view_get_cursor:
12510  * @tree_view: A #GtkTreeView
12511  * @path: A pointer to be filled with the current cursor path, or %NULL
12512  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12513  *
12514  * Fills in @path and @focus_column with the current path and focus column.  If
12515  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12516  * currently has focus, then *@focus_column will be %NULL.
12517  *
12518  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12519  * you are done with it.
12520  **/
12521 void
12522 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12523                           GtkTreePath       **path,
12524                           GtkTreeViewColumn **focus_column)
12525 {
12526   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12527
12528   if (path)
12529     {
12530       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12531         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12532       else
12533         *path = NULL;
12534     }
12535
12536   if (focus_column)
12537     {
12538       *focus_column = tree_view->priv->focus_column;
12539     }
12540 }
12541
12542 /**
12543  * gtk_tree_view_set_cursor:
12544  * @tree_view: A #GtkTreeView
12545  * @path: A #GtkTreePath
12546  * @focus_column: A #GtkTreeViewColumn, or %NULL
12547  * @start_editing: %TRUE if the specified cell should start being edited.
12548  *
12549  * Sets the current keyboard focus to be at @path, and selects it.  This is
12550  * useful when you want to focus the user's attention on a particular row.  If
12551  * @focus_column is not %NULL, then focus is given to the column specified by
12552  * it. Additionally, if @focus_column is specified, and @start_editing is
12553  * %TRUE, then editing should be started in the specified cell.
12554  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12555  * in order to give keyboard focus to the widget.  Please note that editing
12556  * can only happen when the widget is realized.
12557  **/
12558 void
12559 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12560                           GtkTreePath       *path,
12561                           GtkTreeViewColumn *focus_column,
12562                           gboolean           start_editing)
12563 {
12564   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12565                                     NULL, start_editing);
12566 }
12567
12568 /**
12569  * gtk_tree_view_set_cursor_on_cell:
12570  * @tree_view: A #GtkTreeView
12571  * @path: A #GtkTreePath
12572  * @focus_column: A #GtkTreeViewColumn, or %NULL
12573  * @focus_cell: A #GtkCellRenderer, or %NULL
12574  * @start_editing: %TRUE if the specified cell should start being edited.
12575  *
12576  * Sets the current keyboard focus to be at @path, and selects it.  This is
12577  * useful when you want to focus the user's attention on a particular row.  If
12578  * @focus_column is not %NULL, then focus is given to the column specified by
12579  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12580  * contains 2 or more editable or activatable cells, then focus is given to
12581  * the cell specified by @focus_cell. Additionally, if @focus_column is
12582  * specified, and @start_editing is %TRUE, then editing should be started in
12583  * the specified cell.  This function is often followed by
12584  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12585  * widget.  Please note that editing can only happen when the widget is
12586  * realized.
12587  *
12588  * Since: 2.2
12589  **/
12590 void
12591 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12592                                   GtkTreePath       *path,
12593                                   GtkTreeViewColumn *focus_column,
12594                                   GtkCellRenderer   *focus_cell,
12595                                   gboolean           start_editing)
12596 {
12597   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12598   g_return_if_fail (tree_view->priv->tree != NULL);
12599   g_return_if_fail (path != NULL);
12600   if (focus_column)
12601     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (focus_column));
12602   if (focus_cell)
12603     {
12604       g_return_if_fail (focus_column);
12605       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12606     }
12607
12608   /* cancel the current editing, if it exists */
12609   if (tree_view->priv->edited_column &&
12610       tree_view->priv->edited_column->editable_widget)
12611     gtk_tree_view_stop_editing (tree_view, TRUE);
12612
12613   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12614
12615   if (focus_column && focus_column->visible)
12616     {
12617       GList *list;
12618       gboolean column_in_tree = FALSE;
12619
12620       for (list = tree_view->priv->columns; list; list = list->next)
12621         if (list->data == focus_column)
12622           {
12623             column_in_tree = TRUE;
12624             break;
12625           }
12626       g_return_if_fail (column_in_tree);
12627       tree_view->priv->focus_column = focus_column;
12628       if (focus_cell)
12629         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12630       if (start_editing)
12631         gtk_tree_view_start_editing (tree_view, path);
12632     }
12633 }
12634
12635 /**
12636  * gtk_tree_view_get_bin_window:
12637  * @tree_view: A #GtkTreeView
12638  *
12639  * Returns the window that @tree_view renders to.  This is used primarily to
12640  * compare to <literal>event->window</literal> to confirm that the event on
12641  * @tree_view is on the right window.
12642  *
12643  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12644  **/
12645 GdkWindow *
12646 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12647 {
12648   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12649
12650   return tree_view->priv->bin_window;
12651 }
12652
12653 /**
12654  * gtk_tree_view_get_path_at_pos:
12655  * @tree_view: A #GtkTreeView.
12656  * @x: The x position to be identified (relative to bin_window).
12657  * @y: The y position to be identified (relative to bin_window).
12658  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12659  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12660  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12661  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12662  *
12663  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12664  * (please see gtk_tree_view_get_bin_window()).
12665  * That is, @x and @y are relative to an events coordinates. @x and @y must
12666  * come from an event on the @tree_view only where <literal>event->window ==
12667  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12668  * things like popup menus. If @path is non-%NULL, then it will be filled
12669  * with the #GtkTreePath at that point.  This path should be freed with
12670  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12671  * with the column at that point.  @cell_x and @cell_y return the coordinates
12672  * relative to the cell background (i.e. the @background_area passed to
12673  * gtk_cell_renderer_render()).  This function is only meaningful if
12674  * @tree_view is realized.
12675  *
12676  * For converting widget coordinates (eg. the ones you get from
12677  * GtkWidget::query-tooltip), please see
12678  * gtk_tree_view_convert_widget_to_bin_window_coords().
12679  *
12680  * Return value: %TRUE if a row exists at that coordinate.
12681  **/
12682 gboolean
12683 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12684                                gint                x,
12685                                gint                y,
12686                                GtkTreePath       **path,
12687                                GtkTreeViewColumn **column,
12688                                gint               *cell_x,
12689                                gint               *cell_y)
12690 {
12691   GtkRBTree *tree;
12692   GtkRBNode *node;
12693   gint y_offset;
12694
12695   g_return_val_if_fail (tree_view != NULL, FALSE);
12696   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
12697
12698   if (path)
12699     *path = NULL;
12700   if (column)
12701     *column = NULL;
12702
12703   if (tree_view->priv->tree == NULL)
12704     return FALSE;
12705
12706   if (x > tree_view->priv->hadjustment->upper)
12707     return FALSE;
12708
12709   if (x < 0 || y < 0)
12710     return FALSE;
12711
12712   if (column || cell_x)
12713     {
12714       GtkTreeViewColumn *tmp_column;
12715       GtkTreeViewColumn *last_column = NULL;
12716       GList *list;
12717       gint remaining_x = x;
12718       gboolean found = FALSE;
12719       gboolean rtl;
12720
12721       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12722       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12723            list;
12724            list = (rtl ? list->prev : list->next))
12725         {
12726           tmp_column = list->data;
12727
12728           if (tmp_column->visible == FALSE)
12729             continue;
12730
12731           last_column = tmp_column;
12732           if (remaining_x <= tmp_column->width)
12733             {
12734               found = TRUE;
12735
12736               if (column)
12737                 *column = tmp_column;
12738
12739               if (cell_x)
12740                 *cell_x = remaining_x;
12741
12742               break;
12743             }
12744           remaining_x -= tmp_column->width;
12745         }
12746
12747       /* If found is FALSE and there is a last_column, then it the remainder
12748        * space is in that area
12749        */
12750       if (!found)
12751         {
12752           if (last_column)
12753             {
12754               if (column)
12755                 *column = last_column;
12756
12757               if (cell_x)
12758                 *cell_x = last_column->width + remaining_x;
12759             }
12760           else
12761             {
12762               return FALSE;
12763             }
12764         }
12765     }
12766
12767   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12768                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12769                                       &tree, &node);
12770
12771   if (tree == NULL)
12772     return FALSE;
12773
12774   if (cell_y)
12775     *cell_y = y_offset;
12776
12777   if (path)
12778     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12779
12780   return TRUE;
12781 }
12782
12783
12784 /**
12785  * gtk_tree_view_get_cell_area:
12786  * @tree_view: a #GtkTreeView
12787  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12788  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12789  * @rect: rectangle to fill with cell rect
12790  *
12791  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12792  * row specified by @path and the column specified by @column.  If @path is
12793  * %NULL, or points to a path not currently displayed, the @y and @height fields
12794  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12795  * fields will be filled with 0.  The sum of all cell rects does not cover the
12796  * entire tree; there are extra pixels in between rows, for example. The
12797  * returned rectangle is equivalent to the @cell_area passed to
12798  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12799  * realized.
12800  **/
12801 void
12802 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12803                              GtkTreePath        *path,
12804                              GtkTreeViewColumn  *column,
12805                              GdkRectangle       *rect)
12806 {
12807   GtkRBTree *tree = NULL;
12808   GtkRBNode *node = NULL;
12809   gint vertical_separator;
12810   gint horizontal_separator;
12811
12812   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12813   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12814   g_return_if_fail (rect != NULL);
12815   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12816   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12817
12818   gtk_widget_style_get (GTK_WIDGET (tree_view),
12819                         "vertical-separator", &vertical_separator,
12820                         "horizontal-separator", &horizontal_separator,
12821                         NULL);
12822
12823   rect->x = 0;
12824   rect->y = 0;
12825   rect->width = 0;
12826   rect->height = 0;
12827
12828   if (column)
12829     {
12830       rect->x = column->button->allocation.x + horizontal_separator/2;
12831       rect->width = column->button->allocation.width - horizontal_separator;
12832     }
12833
12834   if (path)
12835     {
12836       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12837
12838       /* Get vertical coords */
12839       if ((!ret && tree == NULL) || ret)
12840         return;
12841
12842       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12843       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12844
12845       if (column &&
12846           gtk_tree_view_is_expander_column (tree_view, column))
12847         {
12848           gint depth = gtk_tree_path_get_depth (path);
12849           gboolean rtl;
12850
12851           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12852
12853           if (!rtl)
12854             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12855           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12856
12857           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12858             {
12859               if (!rtl)
12860                 rect->x += depth * tree_view->priv->expander_size;
12861               rect->width -= depth * tree_view->priv->expander_size;
12862             }
12863
12864           rect->width = MAX (rect->width, 0);
12865         }
12866     }
12867 }
12868
12869 /**
12870  * gtk_tree_view_get_background_area:
12871  * @tree_view: a #GtkTreeView
12872  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12873  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12874  * @rect: rectangle to fill with cell background rect
12875  *
12876  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12877  * row specified by @path and the column specified by @column.  If @path is
12878  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12879  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12880  * fields will be filled with 0.  The returned rectangle is equivalent to the
12881  * @background_area passed to gtk_cell_renderer_render().  These background
12882  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12883  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12884  * itself, excluding surrounding borders and the tree expander area.
12885  *
12886  **/
12887 void
12888 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12889                                    GtkTreePath        *path,
12890                                    GtkTreeViewColumn  *column,
12891                                    GdkRectangle       *rect)
12892 {
12893   GtkRBTree *tree = NULL;
12894   GtkRBNode *node = NULL;
12895
12896   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12897   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12898   g_return_if_fail (rect != NULL);
12899
12900   rect->x = 0;
12901   rect->y = 0;
12902   rect->width = 0;
12903   rect->height = 0;
12904
12905   if (path)
12906     {
12907       /* Get vertical coords */
12908
12909       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12910           tree == NULL)
12911         return;
12912
12913       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12914
12915       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12916     }
12917
12918   if (column)
12919     {
12920       gint x2 = 0;
12921
12922       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12923       rect->width = x2 - rect->x;
12924     }
12925 }
12926
12927 /**
12928  * gtk_tree_view_get_visible_rect:
12929  * @tree_view: a #GtkTreeView
12930  * @visible_rect: rectangle to fill
12931  *
12932  * Fills @visible_rect with the currently-visible region of the
12933  * buffer, in tree coordinates. Convert to bin_window coordinates with
12934  * gtk_tree_view_convert_tree_to_bin_window_coords().
12935  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12936  * scrollable area of the tree.
12937  **/
12938 void
12939 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12940                                 GdkRectangle *visible_rect)
12941 {
12942   GtkWidget *widget;
12943
12944   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12945
12946   widget = GTK_WIDGET (tree_view);
12947
12948   if (visible_rect)
12949     {
12950       visible_rect->x = tree_view->priv->hadjustment->value;
12951       visible_rect->y = tree_view->priv->vadjustment->value;
12952       visible_rect->width = widget->allocation.width;
12953       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
12954     }
12955 }
12956
12957 /**
12958  * gtk_tree_view_widget_to_tree_coords:
12959  * @tree_view: a #GtkTreeView
12960  * @wx: X coordinate relative to bin_window
12961  * @wy: Y coordinate relative to bin_window
12962  * @tx: return location for tree X coordinate
12963  * @ty: return location for tree Y coordinate
12964  *
12965  * Converts bin_window coordinates to coordinates for the
12966  * tree (the full scrollable area of the tree).
12967  *
12968  * Deprecated: 2.12: Due to historial reasons the name of this function is
12969  * incorrect.  For converting coordinates relative to the widget to
12970  * bin_window coordinates, please see
12971  * gtk_tree_view_convert_widget_to_bin_window_coords().
12972  *
12973  **/
12974 void
12975 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
12976                                       gint         wx,
12977                                       gint         wy,
12978                                       gint        *tx,
12979                                       gint        *ty)
12980 {
12981   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12982
12983   if (tx)
12984     *tx = wx + tree_view->priv->hadjustment->value;
12985   if (ty)
12986     *ty = wy + tree_view->priv->dy;
12987 }
12988
12989 /**
12990  * gtk_tree_view_tree_to_widget_coords:
12991  * @tree_view: a #GtkTreeView
12992  * @tx: tree X coordinate
12993  * @ty: tree Y coordinate
12994  * @wx: return location for X coordinate relative to bin_window
12995  * @wy: return location for Y coordinate relative to bin_window
12996  *
12997  * Converts tree coordinates (coordinates in full scrollable area of the tree)
12998  * to bin_window coordinates.
12999  *
13000  * Deprecated: 2.12: Due to historial reasons the name of this function is
13001  * incorrect.  For converting bin_window coordinates to coordinates relative
13002  * to bin_window, please see
13003  * gtk_tree_view_convert_bin_window_to_widget_coords().
13004  *
13005  **/
13006 void
13007 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13008                                      gint         tx,
13009                                      gint         ty,
13010                                      gint        *wx,
13011                                      gint        *wy)
13012 {
13013   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13014
13015   if (wx)
13016     *wx = tx - tree_view->priv->hadjustment->value;
13017   if (wy)
13018     *wy = ty - tree_view->priv->dy;
13019 }
13020
13021
13022 /**
13023  * gtk_tree_view_convert_widget_to_tree_coords:
13024  * @tree_view: a #GtkTreeView
13025  * @wx: X coordinate relative to the widget
13026  * @wy: Y coordinate relative to the widget
13027  * @tx: return location for tree X coordinate
13028  * @ty: return location for tree Y coordinate
13029  *
13030  * Converts widget coordinates to coordinates for the
13031  * tree (the full scrollable area of the tree).
13032  *
13033  * Since: 2.12
13034  **/
13035 void
13036 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13037                                              gint         wx,
13038                                              gint         wy,
13039                                              gint        *tx,
13040                                              gint        *ty)
13041 {
13042   gint x, y;
13043
13044   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13045
13046   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13047                                                      wx, wy,
13048                                                      &x, &y);
13049   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13050                                                    x, y,
13051                                                    tx, ty);
13052 }
13053
13054 /**
13055  * gtk_tree_view_convert_tree_to_widget_coords:
13056  * @tree_view: a #GtkTreeView
13057  * @tx: X coordinate relative to the tree
13058  * @ty: Y coordinate relative to the tree
13059  * @wx: return location for widget X coordinate
13060  * @wy: return location for widget Y coordinate
13061  *
13062  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13063  * to widget coordinates.
13064  *
13065  * Since: 2.12
13066  **/
13067 void
13068 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13069                                              gint         tx,
13070                                              gint         ty,
13071                                              gint        *wx,
13072                                              gint        *wy)
13073 {
13074   gint x, y;
13075
13076   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13077
13078   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13079                                                    tx, ty,
13080                                                    &x, &y);
13081   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13082                                                      x, y,
13083                                                      wx, wy);
13084 }
13085
13086 /**
13087  * gtk_tree_view_convert_widget_to_bin_window_coords:
13088  * @tree_view: a #GtkTreeView
13089  * @wx: X coordinate relative to the widget
13090  * @wy: Y coordinate relative to the widget
13091  * @bx: return location for bin_window X coordinate
13092  * @by: return location for bin_window Y coordinate
13093  *
13094  * Converts widget coordinates to coordinates for the bin_window
13095  * (see gtk_tree_view_get_bin_window()).
13096  *
13097  * Since: 2.12
13098  **/
13099 void
13100 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13101                                                    gint         wx,
13102                                                    gint         wy,
13103                                                    gint        *bx,
13104                                                    gint        *by)
13105 {
13106   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13107
13108   if (bx)
13109     *bx = wx + tree_view->priv->hadjustment->value;
13110   if (by)
13111     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13112 }
13113
13114 /**
13115  * gtk_tree_view_convert_bin_window_to_widget_coords:
13116  * @tree_view: a #GtkTreeView
13117  * @bx: bin_window X coordinate
13118  * @by: bin_window Y coordinate
13119  * @wx: return location for widget X coordinate
13120  * @wy: return location for widget Y coordinate
13121  *
13122  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13123  * to widget relative coordinates.
13124  *
13125  * Since: 2.12
13126  **/
13127 void
13128 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13129                                                    gint         bx,
13130                                                    gint         by,
13131                                                    gint        *wx,
13132                                                    gint        *wy)
13133 {
13134   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13135
13136   if (wx)
13137     *wx = bx - tree_view->priv->hadjustment->value;
13138   if (wy)
13139     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13140 }
13141
13142 /**
13143  * gtk_tree_view_convert_tree_to_bin_window_coords:
13144  * @tree_view: a #GtkTreeView
13145  * @tx: tree X coordinate
13146  * @ty: tree Y coordinate
13147  * @bx: return location for X coordinate relative to bin_window
13148  * @by: return location for Y coordinate relative to bin_window
13149  *
13150  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13151  * to bin_window coordinates.
13152  *
13153  * Since: 2.12
13154  **/
13155 void
13156 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13157                                                  gint         tx,
13158                                                  gint         ty,
13159                                                  gint        *bx,
13160                                                  gint        *by)
13161 {
13162   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13163
13164   if (bx)
13165     *bx = tx;
13166   if (by)
13167     *by = ty - tree_view->priv->dy;
13168 }
13169
13170 /**
13171  * gtk_tree_view_convert_bin_window_to_tree_coords:
13172  * @tree_view: a #GtkTreeView
13173  * @bx: X coordinate relative to bin_window
13174  * @by: Y coordinate relative to bin_window
13175  * @tx: return location for tree X coordinate
13176  * @ty: return location for tree Y coordinate
13177  *
13178  * Converts bin_window coordinates to coordinates for the
13179  * tree (the full scrollable area of the tree).
13180  *
13181  * Since: 2.12
13182  **/
13183 void
13184 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13185                                                  gint         bx,
13186                                                  gint         by,
13187                                                  gint        *tx,
13188                                                  gint        *ty)
13189 {
13190   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13191
13192   if (tx)
13193     *tx = bx;
13194   if (ty)
13195     *ty = by + tree_view->priv->dy;
13196 }
13197
13198
13199
13200 /**
13201  * gtk_tree_view_get_visible_range:
13202  * @tree_view: A #GtkTreeView
13203  * @start_path: Return location for start of region, or %NULL.
13204  * @end_path: Return location for end of region, or %NULL.
13205  *
13206  * Sets @start_path and @end_path to be the first and last visible path.
13207  * Note that there may be invisible paths in between.
13208  *
13209  * The paths should be freed with gtk_tree_path_free() after use.
13210  *
13211  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13212  *
13213  * Since: 2.8
13214  **/
13215 gboolean
13216 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13217                                  GtkTreePath **start_path,
13218                                  GtkTreePath **end_path)
13219 {
13220   GtkRBTree *tree;
13221   GtkRBNode *node;
13222   gboolean retval;
13223
13224   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13225
13226   if (!tree_view->priv->tree)
13227     return FALSE;
13228
13229   retval = TRUE;
13230
13231   if (start_path)
13232     {
13233       _gtk_rbtree_find_offset (tree_view->priv->tree,
13234                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13235                                &tree, &node);
13236       if (node)
13237         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13238       else
13239         retval = FALSE;
13240     }
13241
13242   if (end_path)
13243     {
13244       gint y;
13245
13246       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13247         y = tree_view->priv->height - 1;
13248       else
13249         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13250
13251       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13252       if (node)
13253         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13254       else
13255         retval = FALSE;
13256     }
13257
13258   return retval;
13259 }
13260
13261 static void
13262 unset_reorderable (GtkTreeView *tree_view)
13263 {
13264   if (tree_view->priv->reorderable)
13265     {
13266       tree_view->priv->reorderable = FALSE;
13267       g_object_notify (G_OBJECT (tree_view), "reorderable");
13268     }
13269 }
13270
13271 /**
13272  * gtk_tree_view_enable_model_drag_source:
13273  * @tree_view: a #GtkTreeView
13274  * @start_button_mask: Mask of allowed buttons to start drag
13275  * @targets: the table of targets that the drag will support
13276  * @n_targets: the number of items in @targets
13277  * @actions: the bitmask of possible actions for a drag from this
13278  *    widget
13279  *
13280  * Turns @tree_view into a drag source for automatic DND.
13281  **/
13282 void
13283 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13284                                         GdkModifierType           start_button_mask,
13285                                         const GtkTargetEntry     *targets,
13286                                         gint                      n_targets,
13287                                         GdkDragAction             actions)
13288 {
13289   TreeViewDragInfo *di;
13290
13291   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13292
13293   gtk_drag_source_set (GTK_WIDGET (tree_view),
13294                        0,
13295                        targets,
13296                        n_targets,
13297                        actions);
13298
13299   di = ensure_info (tree_view);
13300
13301   di->start_button_mask = start_button_mask;
13302   di->source_actions = actions;
13303   di->source_set = TRUE;
13304
13305   unset_reorderable (tree_view);
13306 }
13307
13308 /**
13309  * gtk_tree_view_enable_model_drag_dest:
13310  * @tree_view: a #GtkTreeView
13311  * @targets: the table of targets that the drag will support
13312  * @n_targets: the number of items in @targets
13313  * @actions: the bitmask of possible actions for a drag from this
13314  *    widget
13315  *
13316  * Turns @tree_view into a drop destination for automatic DND.
13317  **/
13318 void
13319 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13320                                       const GtkTargetEntry     *targets,
13321                                       gint                      n_targets,
13322                                       GdkDragAction             actions)
13323 {
13324   TreeViewDragInfo *di;
13325
13326   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13327
13328   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13329                      0,
13330                      targets,
13331                      n_targets,
13332                      actions);
13333
13334   di = ensure_info (tree_view);
13335   di->dest_set = TRUE;
13336
13337   unset_reorderable (tree_view);
13338 }
13339
13340 /**
13341  * gtk_tree_view_unset_rows_drag_source:
13342  * @tree_view: a #GtkTreeView
13343  *
13344  * Undoes the effect of gtk_tree_view_enable_model_drag_source().
13345  **/
13346 void
13347 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13348 {
13349   TreeViewDragInfo *di;
13350
13351   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13352
13353   di = get_info (tree_view);
13354
13355   if (di)
13356     {
13357       if (di->source_set)
13358         {
13359           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13360           di->source_set = FALSE;
13361         }
13362
13363       if (!di->dest_set && !di->source_set)
13364         remove_info (tree_view);
13365     }
13366
13367   unset_reorderable (tree_view);
13368 }
13369
13370 /**
13371  * gtk_tree_view_unset_rows_drag_dest:
13372  * @tree_view: a #GtkTreeView
13373  *
13374  * Undoes the effect of gtk_tree_view_enable_model_drag_dest().
13375  **/
13376 void
13377 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13378 {
13379   TreeViewDragInfo *di;
13380
13381   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13382
13383   di = get_info (tree_view);
13384
13385   if (di)
13386     {
13387       if (di->dest_set)
13388         {
13389           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13390           di->dest_set = FALSE;
13391         }
13392
13393       if (!di->dest_set && !di->source_set)
13394         remove_info (tree_view);
13395     }
13396
13397   unset_reorderable (tree_view);
13398 }
13399
13400 /**
13401  * gtk_tree_view_set_drag_dest_row:
13402  * @tree_view: a #GtkTreeView
13403  * @path: The path of the row to highlight, or %NULL.
13404  * @pos: Specifies whether to drop before, after or into the row
13405  *
13406  * Sets the row that is highlighted for feedback.
13407  **/
13408 void
13409 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13410                                  GtkTreePath            *path,
13411                                  GtkTreeViewDropPosition pos)
13412 {
13413   GtkTreePath *current_dest;
13414
13415   /* Note; this function is exported to allow a custom DND
13416    * implementation, so it can't touch TreeViewDragInfo
13417    */
13418
13419   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13420
13421   current_dest = NULL;
13422
13423   if (tree_view->priv->drag_dest_row)
13424     {
13425       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13426       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13427     }
13428
13429   /* special case a drop on an empty model */
13430   tree_view->priv->empty_view_drop = 0;
13431
13432   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13433       && gtk_tree_path_get_depth (path) == 1
13434       && gtk_tree_path_get_indices (path)[0] == 0)
13435     {
13436       gint n_children;
13437
13438       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13439                                                    NULL);
13440
13441       if (!n_children)
13442         tree_view->priv->empty_view_drop = 1;
13443     }
13444
13445   tree_view->priv->drag_dest_pos = pos;
13446
13447   if (path)
13448     {
13449       tree_view->priv->drag_dest_row =
13450         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13451       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13452     }
13453   else
13454     tree_view->priv->drag_dest_row = NULL;
13455
13456   if (current_dest)
13457     {
13458       GtkRBTree *tree, *new_tree;
13459       GtkRBNode *node, *new_node;
13460
13461       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13462       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13463
13464       if (tree && node)
13465         {
13466           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13467           if (new_tree && new_node)
13468             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13469
13470           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13471           if (new_tree && new_node)
13472             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13473         }
13474       gtk_tree_path_free (current_dest);
13475     }
13476 }
13477
13478 /**
13479  * gtk_tree_view_get_drag_dest_row:
13480  * @tree_view: a #GtkTreeView
13481  * @path: Return location for the path of the highlighted row, or %NULL.
13482  * @pos: Return location for the drop position, or %NULL
13483  *
13484  * Gets information about the row that is highlighted for feedback.
13485  **/
13486 void
13487 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13488                                  GtkTreePath             **path,
13489                                  GtkTreeViewDropPosition  *pos)
13490 {
13491   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13492
13493   if (path)
13494     {
13495       if (tree_view->priv->drag_dest_row)
13496         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13497       else
13498         {
13499           if (tree_view->priv->empty_view_drop)
13500             *path = gtk_tree_path_new_from_indices (0, -1);
13501           else
13502             *path = NULL;
13503         }
13504     }
13505
13506   if (pos)
13507     *pos = tree_view->priv->drag_dest_pos;
13508 }
13509
13510 /**
13511  * gtk_tree_view_get_dest_row_at_pos:
13512  * @tree_view: a #GtkTreeView
13513  * @drag_x: the position to determine the destination row for
13514  * @drag_y: the position to determine the destination row for
13515  * @path: Return location for the path of the highlighted row, or %NULL.
13516  * @pos: Return location for the drop position, or %NULL
13517  *
13518  * Determines the destination row for a given position.  @drag_x and
13519  * @drag_y are expected to be in widget coordinates.
13520  *
13521  * Return value: whether there is a row at the given position.
13522  **/
13523 gboolean
13524 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13525                                    gint                     drag_x,
13526                                    gint                     drag_y,
13527                                    GtkTreePath            **path,
13528                                    GtkTreeViewDropPosition *pos)
13529 {
13530   gint cell_y;
13531   gint bin_x, bin_y;
13532   gdouble offset_into_row;
13533   gdouble third;
13534   GdkRectangle cell;
13535   GtkTreeViewColumn *column = NULL;
13536   GtkTreePath *tmp_path = NULL;
13537
13538   /* Note; this function is exported to allow a custom DND
13539    * implementation, so it can't touch TreeViewDragInfo
13540    */
13541
13542   g_return_val_if_fail (tree_view != NULL, FALSE);
13543   g_return_val_if_fail (drag_x >= 0, FALSE);
13544   g_return_val_if_fail (drag_y >= 0, FALSE);
13545   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
13546
13547
13548   if (path)
13549     *path = NULL;
13550
13551   if (tree_view->priv->tree == NULL)
13552     return FALSE;
13553
13554   /* If in the top third of a row, we drop before that row; if
13555    * in the bottom third, drop after that row; if in the middle,
13556    * and the row has children, drop into the row.
13557    */
13558   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13559                                                      &bin_x, &bin_y);
13560
13561   if (!gtk_tree_view_get_path_at_pos (tree_view,
13562                                       bin_x,
13563                                       bin_y,
13564                                       &tmp_path,
13565                                       &column,
13566                                       NULL,
13567                                       &cell_y))
13568     return FALSE;
13569
13570   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13571                                      &cell);
13572
13573   offset_into_row = cell_y;
13574
13575   if (path)
13576     *path = tmp_path;
13577   else
13578     gtk_tree_path_free (tmp_path);
13579
13580   tmp_path = NULL;
13581
13582   third = cell.height / 3.0;
13583
13584   if (pos)
13585     {
13586       if (offset_into_row < third)
13587         {
13588           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13589         }
13590       else if (offset_into_row < (cell.height / 2.0))
13591         {
13592           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13593         }
13594       else if (offset_into_row < third * 2.0)
13595         {
13596           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13597         }
13598       else
13599         {
13600           *pos = GTK_TREE_VIEW_DROP_AFTER;
13601         }
13602     }
13603
13604   return TRUE;
13605 }
13606
13607
13608
13609 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13610 /**
13611  * gtk_tree_view_create_row_drag_icon:
13612  * @tree_view: a #GtkTreeView
13613  * @path: a #GtkTreePath in @tree_view
13614  *
13615  * Creates a #GdkPixmap representation of the row at @path.
13616  * This image is used for a drag icon.
13617  *
13618  * Return value: a newly-allocated pixmap of the drag icon.
13619  **/
13620 GdkPixmap *
13621 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13622                                     GtkTreePath  *path)
13623 {
13624   GtkTreeIter   iter;
13625   GtkRBTree    *tree;
13626   GtkRBNode    *node;
13627   gint cell_offset;
13628   GList *list;
13629   GdkRectangle background_area;
13630   GdkRectangle expose_area;
13631   GtkWidget *widget;
13632   gint depth;
13633   /* start drawing inside the black outline */
13634   gint x = 1, y = 1;
13635   GdkDrawable *drawable;
13636   gint bin_window_width;
13637   gboolean is_separator = FALSE;
13638   gboolean rtl;
13639
13640   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13641   g_return_val_if_fail (path != NULL, NULL);
13642
13643   widget = GTK_WIDGET (tree_view);
13644
13645   if (!GTK_WIDGET_REALIZED (tree_view))
13646     return NULL;
13647
13648   depth = gtk_tree_path_get_depth (path);
13649
13650   _gtk_tree_view_find_node (tree_view,
13651                             path,
13652                             &tree,
13653                             &node);
13654
13655   if (tree == NULL)
13656     return NULL;
13657
13658   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13659                                 &iter,
13660                                 path))
13661     return NULL;
13662
13663   is_separator = row_is_separator (tree_view, &iter, NULL);
13664
13665   cell_offset = x;
13666
13667   background_area.y = y;
13668   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13669
13670   gdk_drawable_get_size (tree_view->priv->bin_window,
13671                          &bin_window_width, NULL);
13672
13673   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13674                              bin_window_width + 2,
13675                              background_area.height + 2,
13676                              -1);
13677
13678   expose_area.x = 0;
13679   expose_area.y = 0;
13680   expose_area.width = bin_window_width + 2;
13681   expose_area.height = background_area.height + 2;
13682
13683   gdk_draw_rectangle (drawable,
13684                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13685                       TRUE,
13686                       0, 0,
13687                       bin_window_width + 2,
13688                       background_area.height + 2);
13689
13690   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13691
13692   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13693       list;
13694       list = (rtl ? list->prev : list->next))
13695     {
13696       GtkTreeViewColumn *column = list->data;
13697       GdkRectangle cell_area;
13698       gint vertical_separator;
13699
13700       if (!column->visible)
13701         continue;
13702
13703       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13704                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13705                                                node->children?TRUE:FALSE);
13706
13707       background_area.x = cell_offset;
13708       background_area.width = column->width;
13709
13710       gtk_widget_style_get (widget,
13711                             "vertical-separator", &vertical_separator,
13712                             NULL);
13713
13714       cell_area = background_area;
13715
13716       cell_area.y += vertical_separator / 2;
13717       cell_area.height -= vertical_separator;
13718
13719       if (gtk_tree_view_is_expander_column (tree_view, column))
13720         {
13721           if (!rtl)
13722             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13723           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13724
13725           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13726             {
13727               if (!rtl)
13728                 cell_area.x += depth * tree_view->priv->expander_size;
13729               cell_area.width -= depth * tree_view->priv->expander_size;
13730             }
13731         }
13732
13733       if (gtk_tree_view_column_cell_is_visible (column))
13734         {
13735           if (is_separator)
13736             gtk_paint_hline (widget->style,
13737                              drawable,
13738                              GTK_STATE_NORMAL,
13739                              &cell_area,
13740                              widget,
13741                              NULL,
13742                              cell_area.x,
13743                              cell_area.x + cell_area.width,
13744                              cell_area.y + cell_area.height / 2);
13745           else
13746             _gtk_tree_view_column_cell_render (column,
13747                                                drawable,
13748                                                &background_area,
13749                                                &cell_area,
13750                                                &expose_area,
13751                                                0);
13752         }
13753       cell_offset += column->width;
13754     }
13755
13756   gdk_draw_rectangle (drawable,
13757                       widget->style->black_gc,
13758                       FALSE,
13759                       0, 0,
13760                       bin_window_width + 1,
13761                       background_area.height + 1);
13762
13763   return drawable;
13764 }
13765
13766
13767 /**
13768  * gtk_tree_view_set_destroy_count_func:
13769  * @tree_view: A #GtkTreeView
13770  * @func: Function to be called when a view row is destroyed, or %NULL
13771  * @data: User data to be passed to @func, or %NULL
13772  * @destroy: Destroy notifier for @data, or %NULL
13773  *
13774  * This function should almost never be used.  It is meant for private use by
13775  * ATK for determining the number of visible children that are removed when the
13776  * user collapses a row, or a row is deleted.
13777  **/
13778 void
13779 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13780                                       GtkTreeDestroyCountFunc  func,
13781                                       gpointer                 data,
13782                                       GtkDestroyNotify         destroy)
13783 {
13784   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13785
13786   if (tree_view->priv->destroy_count_destroy)
13787     (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
13788
13789   tree_view->priv->destroy_count_func = func;
13790   tree_view->priv->destroy_count_data = data;
13791   tree_view->priv->destroy_count_destroy = destroy;
13792 }
13793
13794
13795 /*
13796  * Interactive search
13797  */
13798
13799 /**
13800  * gtk_tree_view_set_enable_search:
13801  * @tree_view: A #GtkTreeView
13802  * @enable_search: %TRUE, if the user can search interactively
13803  *
13804  * If @enable_search is set, then the user can type in text to search through
13805  * the tree interactively (this is sometimes called "typeahead find").
13806  *
13807  * Note that even if this is %FALSE, the user can still initiate a search
13808  * using the "start-interactive-search" key binding.
13809  */
13810 void
13811 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13812                                  gboolean     enable_search)
13813 {
13814   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13815
13816   enable_search = !!enable_search;
13817
13818   if (tree_view->priv->enable_search != enable_search)
13819     {
13820        tree_view->priv->enable_search = enable_search;
13821        g_object_notify (G_OBJECT (tree_view), "enable-search");
13822     }
13823 }
13824
13825 /**
13826  * gtk_tree_view_get_enable_search:
13827  * @tree_view: A #GtkTreeView
13828  *
13829  * Returns whether or not the tree allows to start interactive searching
13830  * by typing in text.
13831  *
13832  * Return value: whether or not to let the user search interactively
13833  */
13834 gboolean
13835 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13836 {
13837   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13838
13839   return tree_view->priv->enable_search;
13840 }
13841
13842
13843 /**
13844  * gtk_tree_view_get_search_column:
13845  * @tree_view: A #GtkTreeView
13846  *
13847  * Gets the column searched on by the interactive search code.
13848  *
13849  * Return value: the column the interactive search code searches in.
13850  */
13851 gint
13852 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13853 {
13854   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13855
13856   return (tree_view->priv->search_column);
13857 }
13858
13859 /**
13860  * gtk_tree_view_set_search_column:
13861  * @tree_view: A #GtkTreeView
13862  * @column: the column of the model to search in, or -1 to disable searching
13863  *
13864  * Sets @column as the column where the interactive search code should
13865  * search in for the current model.
13866  *
13867  * If the search column is set, users can use the "start-interactive-search"
13868  * key binding to bring up search popup. The enable-search property controls
13869  * whether simply typing text will also start an interactive search.
13870  *
13871  * Note that @column refers to a column of the current model. The search
13872  * column is reset to -1 when the model is changed.
13873  */
13874 void
13875 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13876                                  gint         column)
13877 {
13878   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13879   g_return_if_fail (column >= -1);
13880
13881   if (tree_view->priv->search_column == column)
13882     return;
13883
13884   tree_view->priv->search_column = column;
13885   g_object_notify (G_OBJECT (tree_view), "search-column");
13886 }
13887
13888 /**
13889  * gtk_tree_view_get_search_equal_func:
13890  * @tree_view: A #GtkTreeView
13891  *
13892  * Returns the compare function currently in use.
13893  *
13894  * Return value: the currently used compare function for the search code.
13895  */
13896
13897 GtkTreeViewSearchEqualFunc
13898 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13899 {
13900   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13901
13902   return tree_view->priv->search_equal_func;
13903 }
13904
13905 /**
13906  * gtk_tree_view_set_search_equal_func:
13907  * @tree_view: A #GtkTreeView
13908  * @search_equal_func: the compare function to use during the search
13909  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13910  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13911  *
13912  * Sets the compare function for the interactive search capabilities; note
13913  * that somewhat like strcmp() returning 0 for equality
13914  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13915  **/
13916 void
13917 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13918                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13919                                      gpointer                    search_user_data,
13920                                      GtkDestroyNotify            search_destroy)
13921 {
13922   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13923   g_return_if_fail (search_equal_func != NULL);
13924
13925   if (tree_view->priv->search_destroy)
13926     (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
13927
13928   tree_view->priv->search_equal_func = search_equal_func;
13929   tree_view->priv->search_user_data = search_user_data;
13930   tree_view->priv->search_destroy = search_destroy;
13931   if (tree_view->priv->search_equal_func == NULL)
13932     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13933 }
13934
13935 /**
13936  * gtk_tree_view_get_search_entry:
13937  * @tree_view: A #GtkTreeView
13938  *
13939  * Returns the GtkEntry which is currently in use as interactive search
13940  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13941  * will be returned.
13942  *
13943  * Return value: the entry currently in use as search entry.
13944  *
13945  * Since: 2.10
13946  */
13947 GtkEntry *
13948 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
13949 {
13950   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13951
13952   if (tree_view->priv->search_custom_entry_set)
13953     return GTK_ENTRY (tree_view->priv->search_entry);
13954
13955   return NULL;
13956 }
13957
13958 /**
13959  * gtk_tree_view_set_search_entry:
13960  * @tree_view: A #GtkTreeView
13961  * @entry: the entry the interactive search code of @tree_view should use or %NULL
13962  *
13963  * Sets the entry which the interactive search code will use for this
13964  * @tree_view.  This is useful when you want to provide a search entry
13965  * in our interface at all time at a fixed position.  Passing %NULL for
13966  * @entry will make the interactive search code use the built-in popup
13967  * entry again.
13968  *
13969  * Since: 2.10
13970  */
13971 void
13972 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
13973                                 GtkEntry    *entry)
13974 {
13975   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13976   if (entry != NULL)
13977     g_return_if_fail (GTK_IS_ENTRY (entry));
13978
13979   if (tree_view->priv->search_custom_entry_set)
13980     {
13981       if (tree_view->priv->search_entry_changed_id)
13982         {
13983           g_signal_handler_disconnect (tree_view->priv->search_entry,
13984                                        tree_view->priv->search_entry_changed_id);
13985           tree_view->priv->search_entry_changed_id = 0;
13986         }
13987       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
13988                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
13989                                             tree_view);
13990
13991       g_object_unref (tree_view->priv->search_entry);
13992     }
13993   else if (tree_view->priv->search_window)
13994     {
13995       gtk_widget_destroy (tree_view->priv->search_window);
13996
13997       tree_view->priv->search_window = NULL;
13998     }
13999
14000   if (entry)
14001     {
14002       tree_view->priv->search_entry = g_object_ref (entry);
14003       tree_view->priv->search_custom_entry_set = TRUE;
14004
14005       if (tree_view->priv->search_entry_changed_id == 0)
14006         {
14007           tree_view->priv->search_entry_changed_id =
14008             g_signal_connect (tree_view->priv->search_entry, "changed",
14009                               G_CALLBACK (gtk_tree_view_search_init),
14010                               tree_view);
14011         }
14012
14013         g_signal_connect (tree_view->priv->search_entry, "key_press_event",
14014                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14015                           tree_view);
14016
14017         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14018     }
14019   else
14020     {
14021       tree_view->priv->search_entry = NULL;
14022       tree_view->priv->search_custom_entry_set = FALSE;
14023     }
14024 }
14025
14026 /**
14027  * gtk_tree_view_set_search_position_func:
14028  * @tree_view: A #GtkTreeView
14029  * @func: the function to use to position the search dialog, or %NULL
14030  *    to use the default search position function
14031  * @data: user data to pass to @func, or %NULL
14032  * @destroy: Destroy notifier for @data, or %NULL
14033  *
14034  * Sets the function to use when positioning the seach dialog.
14035  *
14036  * Since: 2.10
14037  **/
14038 void
14039 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14040                                         GtkTreeViewSearchPositionFunc  func,
14041                                         gpointer                       user_data,
14042                                         GDestroyNotify                 destroy)
14043 {
14044   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14045
14046   if (tree_view->priv->search_position_destroy)
14047     (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
14048
14049   tree_view->priv->search_position_func = func;
14050   tree_view->priv->search_position_user_data = user_data;
14051   tree_view->priv->search_position_destroy = destroy;
14052   if (tree_view->priv->search_position_func == NULL)
14053     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14054 }
14055
14056 /**
14057  * gtk_tree_view_get_search_position_func:
14058  * @tree_view: A #GtkTreeView
14059  *
14060  * Returns the positioning function currently in use.
14061  *
14062  * Return value: the currently used function for positioning the search dialog.
14063  *
14064  * Since: 2.10
14065  */
14066 GtkTreeViewSearchPositionFunc
14067 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14068 {
14069   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14070
14071   return tree_view->priv->search_position_func;
14072 }
14073
14074
14075 static void
14076 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14077                                   GtkTreeView *tree_view)
14078 {
14079   if (tree_view->priv->disable_popdown)
14080     return;
14081
14082   if (tree_view->priv->search_entry_changed_id)
14083     {
14084       g_signal_handler_disconnect (tree_view->priv->search_entry,
14085                                    tree_view->priv->search_entry_changed_id);
14086       tree_view->priv->search_entry_changed_id = 0;
14087     }
14088   if (tree_view->priv->typeselect_flush_timeout)
14089     {
14090       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14091       tree_view->priv->typeselect_flush_timeout = 0;
14092     }
14093
14094   if (GTK_WIDGET_VISIBLE (search_dialog))
14095     {
14096       /* send focus-in event */
14097       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14098       gtk_widget_hide (search_dialog);
14099       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14100       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14101     }
14102 }
14103
14104 static void
14105 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14106                                     GtkWidget   *search_dialog,
14107                                     gpointer     user_data)
14108 {
14109   gint x, y;
14110   gint tree_x, tree_y;
14111   gint tree_width, tree_height;
14112   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14113   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14114   GtkRequisition requisition;
14115   gint monitor_num;
14116   GdkRectangle monitor;
14117
14118   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14119   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14120
14121   gtk_widget_realize (search_dialog);
14122
14123   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14124   gdk_drawable_get_size (tree_window,
14125                          &tree_width,
14126                          &tree_height);
14127   gtk_widget_size_request (search_dialog, &requisition);
14128
14129   if (tree_x + tree_width > gdk_screen_get_width (screen))
14130     x = gdk_screen_get_width (screen) - requisition.width;
14131   else if (tree_x + tree_width - requisition.width < 0)
14132     x = 0;
14133   else
14134     x = tree_x + tree_width - requisition.width;
14135
14136   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14137     y = gdk_screen_get_height (screen) - requisition.height;
14138   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14139     y = 0;
14140   else
14141     y = tree_y + tree_height;
14142
14143   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14144 }
14145
14146 static void
14147 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14148                                       GtkMenu  *menu,
14149                                       gpointer  data)
14150 {
14151   GtkTreeView *tree_view = (GtkTreeView *)data;
14152
14153   tree_view->priv->disable_popdown = 1;
14154   g_signal_connect (menu, "hide",
14155                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14156 }
14157
14158 /* Because we're visible but offscreen, we just set a flag in the preedit
14159  * callback.
14160  */
14161 static void
14162 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14163                                       GtkTreeView  *tree_view)
14164 {
14165   tree_view->priv->imcontext_changed = 1;
14166   if (tree_view->priv->typeselect_flush_timeout)
14167     {
14168       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14169       tree_view->priv->typeselect_flush_timeout =
14170         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14171                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14172                        tree_view);
14173     }
14174
14175 }
14176
14177 static void
14178 gtk_tree_view_search_activate (GtkEntry    *entry,
14179                                GtkTreeView *tree_view)
14180 {
14181   GtkTreePath *path;
14182   GtkRBNode *node;
14183   GtkRBTree *tree;
14184
14185   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14186                                     tree_view);
14187
14188   /* If we have a row selected and it's the cursor row, we activate
14189    * the row XXX */
14190   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14191     {
14192       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14193
14194       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14195
14196       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14197         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14198
14199       gtk_tree_path_free (path);
14200     }
14201 }
14202
14203 static gboolean
14204 gtk_tree_view_real_search_enable_popdown (gpointer data)
14205 {
14206   GtkTreeView *tree_view = (GtkTreeView *)data;
14207
14208   tree_view->priv->disable_popdown = 0;
14209
14210   return FALSE;
14211 }
14212
14213 static void
14214 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14215                                      gpointer   data)
14216 {
14217   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14218 }
14219
14220 static gboolean
14221 gtk_tree_view_search_delete_event (GtkWidget *widget,
14222                                    GdkEventAny *event,
14223                                    GtkTreeView *tree_view)
14224 {
14225   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14226
14227   gtk_tree_view_search_dialog_hide (widget, tree_view);
14228
14229   return TRUE;
14230 }
14231
14232 static gboolean
14233 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14234                                          GdkEventButton *event,
14235                                          GtkTreeView *tree_view)
14236 {
14237   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14238
14239   gtk_tree_view_search_dialog_hide (widget, tree_view);
14240
14241   if (event->window == tree_view->priv->bin_window)
14242     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14243
14244   return TRUE;
14245 }
14246
14247 static gboolean
14248 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14249                                    GdkEventScroll *event,
14250                                    GtkTreeView *tree_view)
14251 {
14252   gboolean retval = FALSE;
14253
14254   if (event->direction == GDK_SCROLL_UP)
14255     {
14256       gtk_tree_view_search_move (widget, tree_view, TRUE);
14257       retval = TRUE;
14258     }
14259   else if (event->direction == GDK_SCROLL_DOWN)
14260     {
14261       gtk_tree_view_search_move (widget, tree_view, FALSE);
14262       retval = TRUE;
14263     }
14264
14265   /* renew the flush timeout */
14266   if (retval && tree_view->priv->typeselect_flush_timeout
14267       && !tree_view->priv->search_custom_entry_set)
14268     {
14269       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14270       tree_view->priv->typeselect_flush_timeout =
14271         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14272                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14273                        tree_view);
14274     }
14275
14276   return retval;
14277 }
14278
14279 static gboolean
14280 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14281                                       GdkEventKey *event,
14282                                       GtkTreeView *tree_view)
14283 {
14284   gboolean retval = FALSE;
14285
14286   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14287   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14288
14289   /* close window and cancel the search */
14290   if (!tree_view->priv->search_custom_entry_set
14291       && (event->keyval == GDK_Escape ||
14292           event->keyval == GDK_Tab ||
14293             event->keyval == GDK_KP_Tab ||
14294             event->keyval == GDK_ISO_Left_Tab))
14295     {
14296       gtk_tree_view_search_dialog_hide (widget, tree_view);
14297       return TRUE;
14298     }
14299
14300   /* select previous matching iter */
14301   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14302     {
14303       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14304         gtk_widget_error_bell (widget);
14305
14306       retval = TRUE;
14307     }
14308
14309   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14310       && (event->keyval == GDK_g || event->keyval == GDK_G))
14311     {
14312       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14313         gtk_widget_error_bell (widget);
14314
14315       retval = TRUE;
14316     }
14317
14318   /* select next matching iter */
14319   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14320     {
14321       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14322         gtk_widget_error_bell (widget);
14323
14324       retval = TRUE;
14325     }
14326
14327   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14328       && (event->keyval == GDK_g || event->keyval == GDK_G))
14329     {
14330       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14331         gtk_widget_error_bell (widget);
14332
14333       retval = TRUE;
14334     }
14335
14336   /* renew the flush timeout */
14337   if (retval && tree_view->priv->typeselect_flush_timeout
14338       && !tree_view->priv->search_custom_entry_set)
14339     {
14340       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14341       tree_view->priv->typeselect_flush_timeout =
14342         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14343                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14344                        tree_view);
14345     }
14346
14347   return retval;
14348 }
14349
14350 /*  this function returns FALSE if there is a search string but
14351  *  nothing was found, and TRUE otherwise.
14352  */
14353 static gboolean
14354 gtk_tree_view_search_move (GtkWidget   *window,
14355                            GtkTreeView *tree_view,
14356                            gboolean     up)
14357 {
14358   gboolean ret;
14359   gint len;
14360   gint count = 0;
14361   const gchar *text;
14362   GtkTreeIter iter;
14363   GtkTreeModel *model;
14364   GtkTreeSelection *selection;
14365
14366   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14367
14368   g_return_val_if_fail (text != NULL, FALSE);
14369
14370   len = strlen (text);
14371
14372   if (up && tree_view->priv->selected_iter == 1)
14373     return strlen (text) < 1;
14374
14375   len = strlen (text);
14376
14377   if (len < 1)
14378     return TRUE;
14379
14380   model = gtk_tree_view_get_model (tree_view);
14381   selection = gtk_tree_view_get_selection (tree_view);
14382
14383   /* search */
14384   gtk_tree_selection_unselect_all (selection);
14385   if (!gtk_tree_model_get_iter_first (model, &iter))
14386     return TRUE;
14387
14388   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14389                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14390
14391   if (ret)
14392     {
14393       /* found */
14394       tree_view->priv->selected_iter += up?(-1):(1);
14395       return TRUE;
14396     }
14397   else
14398     {
14399       /* return to old iter */
14400       count = 0;
14401       gtk_tree_model_get_iter_first (model, &iter);
14402       gtk_tree_view_search_iter (model, selection,
14403                                  &iter, text,
14404                                  &count, tree_view->priv->selected_iter);
14405       return FALSE;
14406     }
14407 }
14408
14409 static gboolean
14410 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14411                                  gint          column,
14412                                  const gchar  *key,
14413                                  GtkTreeIter  *iter,
14414                                  gpointer      search_data)
14415 {
14416   gboolean retval = TRUE;
14417   const gchar *str;
14418   gchar *normalized_string;
14419   gchar *normalized_key;
14420   gchar *case_normalized_string = NULL;
14421   gchar *case_normalized_key = NULL;
14422   GValue value = {0,};
14423   GValue transformed = {0,};
14424
14425   gtk_tree_model_get_value (model, iter, column, &value);
14426
14427   g_value_init (&transformed, G_TYPE_STRING);
14428
14429   if (!g_value_transform (&value, &transformed))
14430     {
14431       g_value_unset (&value);
14432       return TRUE;
14433     }
14434
14435   g_value_unset (&value);
14436
14437   str = g_value_get_string (&transformed);
14438   if (!str)
14439     {
14440       g_value_unset (&transformed);
14441       return TRUE;
14442     }
14443
14444   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14445   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14446
14447   if (normalized_string && normalized_key)
14448     {
14449       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14450       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14451
14452       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14453         retval = FALSE;
14454     }
14455
14456   g_value_unset (&transformed);
14457   g_free (normalized_key);
14458   g_free (normalized_string);
14459   g_free (case_normalized_key);
14460   g_free (case_normalized_string);
14461
14462   return retval;
14463 }
14464
14465 static gboolean
14466 gtk_tree_view_search_iter (GtkTreeModel     *model,
14467                            GtkTreeSelection *selection,
14468                            GtkTreeIter      *iter,
14469                            const gchar      *text,
14470                            gint             *count,
14471                            gint              n)
14472 {
14473   GtkRBTree *tree = NULL;
14474   GtkRBNode *node = NULL;
14475   GtkTreePath *path;
14476
14477   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14478
14479   path = gtk_tree_model_get_path (model, iter);
14480   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14481
14482   do
14483     {
14484       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14485         {
14486           (*count)++;
14487           if (*count == n)
14488             {
14489               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14490                                             TRUE, 0.5, 0.0);
14491               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14492               gtk_tree_selection_select_iter (selection, iter);
14493
14494               if (path)
14495                 gtk_tree_path_free (path);
14496
14497               return TRUE;
14498             }
14499         }
14500
14501       if (node->children)
14502         {
14503           gboolean has_child;
14504           GtkTreeIter tmp;
14505
14506           tree = node->children;
14507           node = tree->root;
14508
14509           while (node->left != tree->nil)
14510             node = node->left;
14511
14512           tmp = *iter;
14513           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14514           gtk_tree_path_down (path);
14515
14516           /* sanity check */
14517           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14518         }
14519       else
14520         {
14521           gboolean done = FALSE;
14522
14523           do
14524             {
14525               node = _gtk_rbtree_next (tree, node);
14526
14527               if (node)
14528                 {
14529                   gboolean has_next;
14530
14531                   has_next = gtk_tree_model_iter_next (model, iter);
14532
14533                   done = TRUE;
14534                   gtk_tree_path_next (path);
14535
14536                   /* sanity check */
14537                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14538                 }
14539               else
14540                 {
14541                   gboolean has_parent;
14542                   GtkTreeIter tmp_iter = *iter;
14543
14544                   node = tree->parent_node;
14545                   tree = tree->parent_tree;
14546
14547                   if (!tree)
14548                     {
14549                       if (path)
14550                         gtk_tree_path_free (path);
14551
14552                       /* we've run out of tree, done with this func */
14553                       return FALSE;
14554                     }
14555
14556                   has_parent = gtk_tree_model_iter_parent (model,
14557                                                            iter,
14558                                                            &tmp_iter);
14559                   gtk_tree_path_up (path);
14560
14561                   /* sanity check */
14562                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14563                 }
14564             }
14565           while (!done);
14566         }
14567     }
14568   while (1);
14569
14570   return FALSE;
14571 }
14572
14573 static void
14574 gtk_tree_view_search_init (GtkWidget   *entry,
14575                            GtkTreeView *tree_view)
14576 {
14577   gint ret;
14578   gint len;
14579   gint count = 0;
14580   const gchar *text;
14581   GtkTreeIter iter;
14582   GtkTreeModel *model;
14583   GtkTreeSelection *selection;
14584
14585   g_return_if_fail (GTK_IS_ENTRY (entry));
14586   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14587
14588   text = gtk_entry_get_text (GTK_ENTRY (entry));
14589   len = strlen (text);
14590   model = gtk_tree_view_get_model (tree_view);
14591   selection = gtk_tree_view_get_selection (tree_view);
14592
14593   /* search */
14594   gtk_tree_selection_unselect_all (selection);
14595   if (tree_view->priv->typeselect_flush_timeout
14596       && !tree_view->priv->search_custom_entry_set)
14597     {
14598       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14599       tree_view->priv->typeselect_flush_timeout =
14600         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14601                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14602                        tree_view);
14603     }
14604
14605   if (len < 1)
14606     return;
14607
14608   if (!gtk_tree_model_get_iter_first (model, &iter))
14609     return;
14610
14611   ret = gtk_tree_view_search_iter (model, selection,
14612                                    &iter, text,
14613                                    &count, 1);
14614
14615   if (ret)
14616     tree_view->priv->selected_iter = 1;
14617 }
14618
14619 static void
14620 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14621                              GtkTreeView     *tree_view)
14622 {
14623   if (tree_view->priv->edited_column == NULL)
14624     return;
14625
14626   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14627   tree_view->priv->edited_column = NULL;
14628
14629   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14630     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14631
14632   g_signal_handlers_disconnect_by_func (cell_editable,
14633                                         gtk_tree_view_remove_widget,
14634                                         tree_view);
14635
14636   gtk_container_remove (GTK_CONTAINER (tree_view),
14637                         GTK_WIDGET (cell_editable));
14638
14639   /* FIXME should only redraw a single node */
14640   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14641 }
14642
14643 static gboolean
14644 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14645                              GtkTreePath *cursor_path)
14646 {
14647   GtkTreeIter iter;
14648   GdkRectangle background_area;
14649   GdkRectangle cell_area;
14650   GtkCellEditable *editable_widget = NULL;
14651   gchar *path_string;
14652   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14653   gint retval = FALSE;
14654   GtkRBTree *cursor_tree;
14655   GtkRBNode *cursor_node;
14656
14657   g_assert (tree_view->priv->focus_column);
14658
14659   if (! GTK_WIDGET_REALIZED (tree_view))
14660     return FALSE;
14661
14662   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14663       cursor_node == NULL)
14664     return FALSE;
14665
14666   path_string = gtk_tree_path_to_string (cursor_path);
14667   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14668
14669   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14670
14671   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14672                                            tree_view->priv->model,
14673                                            &iter,
14674                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14675                                            cursor_node->children?TRUE:FALSE);
14676   gtk_tree_view_get_background_area (tree_view,
14677                                      cursor_path,
14678                                      tree_view->priv->focus_column,
14679                                      &background_area);
14680   gtk_tree_view_get_cell_area (tree_view,
14681                                cursor_path,
14682                                tree_view->priv->focus_column,
14683                                &cell_area);
14684
14685   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14686                                         &editable_widget,
14687                                         NULL,
14688                                         path_string,
14689                                         &background_area,
14690                                         &cell_area,
14691                                         flags))
14692     {
14693       retval = TRUE;
14694       if (editable_widget != NULL)
14695         {
14696           gint left, right;
14697           GdkRectangle area;
14698           GtkCellRenderer *cell;
14699
14700           area = cell_area;
14701           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14702
14703           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14704
14705           area.x += left;
14706           area.width -= right + left;
14707
14708           gtk_tree_view_real_start_editing (tree_view,
14709                                             tree_view->priv->focus_column,
14710                                             cursor_path,
14711                                             editable_widget,
14712                                             &area,
14713                                             NULL,
14714                                             flags);
14715         }
14716
14717     }
14718   g_free (path_string);
14719   return retval;
14720 }
14721
14722 static void
14723 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14724                                   GtkTreeViewColumn *column,
14725                                   GtkTreePath       *path,
14726                                   GtkCellEditable   *cell_editable,
14727                                   GdkRectangle      *cell_area,
14728                                   GdkEvent          *event,
14729                                   guint              flags)
14730 {
14731   gint pre_val = tree_view->priv->vadjustment->value;
14732   GtkRequisition requisition;
14733
14734   tree_view->priv->edited_column = column;
14735   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14736
14737   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14738   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14739
14740   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14741
14742   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14743
14744   if (requisition.height < cell_area->height)
14745     {
14746       gint diff = cell_area->height - requisition.height;
14747       gtk_tree_view_put (tree_view,
14748                          GTK_WIDGET (cell_editable),
14749                          cell_area->x, cell_area->y + diff/2,
14750                          cell_area->width, requisition.height);
14751     }
14752   else
14753     {
14754       gtk_tree_view_put (tree_view,
14755                          GTK_WIDGET (cell_editable),
14756                          cell_area->x, cell_area->y,
14757                          cell_area->width, cell_area->height);
14758     }
14759
14760   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14761                                    (GdkEvent *)event);
14762
14763   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14764   g_signal_connect (cell_editable, "remove_widget",
14765                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14766 }
14767
14768 static void
14769 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14770                             gboolean     cancel_editing)
14771 {
14772   GtkTreeViewColumn *column;
14773   GtkCellRenderer *cell;
14774
14775   if (tree_view->priv->edited_column == NULL)
14776     return;
14777
14778   /*
14779    * This is very evil. We need to do this, because
14780    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14781    * later on. If gtk_tree_view_row_changed notices
14782    * tree_view->priv->edited_column != NULL, it'll call
14783    * gtk_tree_view_stop_editing again. Bad things will happen then.
14784    *
14785    * Please read that again if you intend to modify anything here.
14786    */
14787
14788   column = tree_view->priv->edited_column;
14789   tree_view->priv->edited_column = NULL;
14790
14791   cell = _gtk_tree_view_column_get_edited_cell (column);
14792   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14793
14794   if (!cancel_editing)
14795     gtk_cell_editable_editing_done (column->editable_widget);
14796
14797   tree_view->priv->edited_column = column;
14798
14799   gtk_cell_editable_remove_widget (column->editable_widget);
14800 }
14801
14802
14803 /**
14804  * gtk_tree_view_set_hover_selection:
14805  * @tree_view: a #GtkTreeView
14806  * @hover: %TRUE to enable hover selection mode
14807  *
14808  * Enables of disables the hover selection mode of @tree_view.
14809  * Hover selection makes the selected row follow the pointer.
14810  * Currently, this works only for the selection modes
14811  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14812  *
14813  * Since: 2.6
14814  **/
14815 void
14816 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14817                                    gboolean     hover)
14818 {
14819   hover = hover != FALSE;
14820
14821   if (hover != tree_view->priv->hover_selection)
14822     {
14823       tree_view->priv->hover_selection = hover;
14824
14825       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14826     }
14827 }
14828
14829 /**
14830  * gtk_tree_view_get_hover_selection:
14831  * @tree_view: a #GtkTreeView
14832  *
14833  * Returns whether hover selection mode is turned on for @tree_view.
14834  *
14835  * Return value: %TRUE if @tree_view is in hover selection mode
14836  *
14837  * Since: 2.6
14838  **/
14839 gboolean
14840 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14841 {
14842   return tree_view->priv->hover_selection;
14843 }
14844
14845 /**
14846  * gtk_tree_view_set_hover_expand:
14847  * @tree_view: a #GtkTreeView
14848  * @expand: %TRUE to enable hover selection mode
14849  *
14850  * Enables of disables the hover expansion mode of @tree_view.
14851  * Hover expansion makes rows expand or collaps if the pointer
14852  * moves over them.
14853  *
14854  * Since: 2.6
14855  **/
14856 void
14857 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14858                                 gboolean     expand)
14859 {
14860   expand = expand != FALSE;
14861
14862   if (expand != tree_view->priv->hover_expand)
14863     {
14864       tree_view->priv->hover_expand = expand;
14865
14866       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14867     }
14868 }
14869
14870 /**
14871  * gtk_tree_view_get_hover_expand:
14872  * @tree_view: a #GtkTreeView
14873  *
14874  * Returns whether hover expansion mode is turned on for @tree_view.
14875  *
14876  * Return value: %TRUE if @tree_view is in hover expansion mode
14877  *
14878  * Since: 2.6
14879  **/
14880 gboolean
14881 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14882 {
14883   return tree_view->priv->hover_expand;
14884 }
14885
14886 /**
14887  * gtk_tree_view_set_rubber_banding:
14888  * @tree_view: a #GtkTreeView
14889  * @enable: %TRUE to enable rubber banding
14890  *
14891  * Enables or disables rubber banding in @tree_view.  If the selection mode
14892  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14893  * multiple rows by dragging the mouse.
14894  *
14895  * Since: 2.10
14896  **/
14897 void
14898 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14899                                   gboolean     enable)
14900 {
14901   enable = enable != FALSE;
14902
14903   if (enable != tree_view->priv->rubber_banding_enable)
14904     {
14905       tree_view->priv->rubber_banding_enable = enable;
14906
14907       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14908     }
14909 }
14910
14911 /**
14912  * gtk_tree_view_get_rubber_banding:
14913  * @tree_view: a #GtkTreeView
14914  *
14915  * Returns whether rubber banding is turned on for @tree_view.  If the
14916  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14917  * user to select multiple rows by dragging the mouse.
14918  *
14919  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14920  *
14921  * Since: 2.10
14922  **/
14923 gboolean
14924 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14925 {
14926   return tree_view->priv->rubber_banding_enable;
14927 }
14928
14929 /**
14930  * gtk_tree_view_is_rubber_banding_active:
14931  * @tree_view: a #GtkTreeView
14932  *
14933  * Returns whether a rubber banding operation is currently being done
14934  * in @tree_view.
14935  *
14936  * Return value: %TRUE if a rubber banding operation is currently being
14937  * done in @tree_view.
14938  *
14939  * Since: 2.12
14940  **/
14941 gboolean
14942 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
14943 {
14944   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14945
14946   if (tree_view->priv->rubber_banding_enable
14947       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
14948     return TRUE;
14949
14950   return FALSE;
14951 }
14952
14953 /**
14954  * gtk_tree_view_get_row_separator_func:
14955  * @tree_view: a #GtkTreeView
14956  *
14957  * Returns the current row separator function.
14958  *
14959  * Return value: the current row separator function.
14960  *
14961  * Since: 2.6
14962  **/
14963 GtkTreeViewRowSeparatorFunc
14964 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
14965 {
14966   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14967
14968   return tree_view->priv->row_separator_func;
14969 }
14970
14971 /**
14972  * gtk_tree_view_set_row_separator_func:
14973  * @tree_view: a #GtkTreeView
14974  * @func: a #GtkTreeViewRowSeparatorFunc
14975  * @data: user data to pass to @func, or %NULL
14976  * @destroy: destroy notifier for @data, or %NULL
14977  *
14978  * Sets the row separator function, which is used to determine
14979  * whether a row should be drawn as a separator. If the row separator
14980  * function is %NULL, no separators are drawn. This is the default value.
14981  *
14982  * Since: 2.6
14983  **/
14984 void
14985 gtk_tree_view_set_row_separator_func (GtkTreeView                *tree_view,
14986                                       GtkTreeViewRowSeparatorFunc func,
14987                                       gpointer                    data,
14988                                       GtkDestroyNotify            destroy)
14989 {
14990   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14991
14992   if (tree_view->priv->row_separator_destroy)
14993     (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
14994
14995   tree_view->priv->row_separator_func = func;
14996   tree_view->priv->row_separator_data = data;
14997   tree_view->priv->row_separator_destroy = destroy;
14998 }
14999
15000
15001 static void
15002 gtk_tree_view_grab_notify (GtkWidget *widget,
15003                            gboolean   was_grabbed)
15004 {
15005   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15006
15007   tree_view->priv->in_grab = !was_grabbed;
15008
15009   if (!was_grabbed)
15010     {
15011       tree_view->priv->pressed_button = -1;
15012
15013       if (tree_view->priv->rubber_band_status)
15014         gtk_tree_view_stop_rubber_band (tree_view);
15015     }
15016 }
15017
15018 static void
15019 gtk_tree_view_state_changed (GtkWidget      *widget,
15020                              GtkStateType    previous_state)
15021 {
15022   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15023
15024   if (GTK_WIDGET_REALIZED (widget))
15025     {
15026       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15027       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15028     }
15029
15030   gtk_widget_queue_draw (widget);
15031 }
15032
15033 /**
15034  * gtk_tree_view_get_grid_lines:
15035  * @tree_view: a #GtkTreeView
15036  *
15037  * Returns which grid lines are enabled in @tree_view.
15038  *
15039  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15040  * are enabled.
15041  *
15042  * Since: 2.10
15043  */
15044 GtkTreeViewGridLines
15045 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15046 {
15047   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15048
15049   return tree_view->priv->grid_lines;
15050 }
15051
15052 /**
15053  * gtk_tree_view_set_grid_lines:
15054  * @tree_view: a #GtkTreeView
15055  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15056  * enable.
15057  *
15058  * Sets which grid lines to draw in @tree_view.
15059  *
15060  * Since: 2.10
15061  */
15062 void
15063 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15064                               GtkTreeViewGridLines   grid_lines)
15065 {
15066   GtkTreeViewPrivate *priv;
15067   GtkWidget *widget;
15068   GtkTreeViewGridLines old_grid_lines;
15069
15070   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15071
15072   priv = tree_view->priv;
15073   widget = GTK_WIDGET (tree_view);
15074
15075   old_grid_lines = priv->grid_lines;
15076   priv->grid_lines = grid_lines;
15077
15078   if (GTK_WIDGET_REALIZED (widget))
15079     {
15080       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15081           priv->grid_line_gc)
15082         {
15083           g_object_unref (priv->grid_line_gc);
15084           priv->grid_line_gc = NULL;
15085         }
15086
15087       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15088           !priv->grid_line_gc)
15089         {
15090           gint line_width;
15091           guint8 *dash_list;
15092
15093           gtk_widget_style_get (widget,
15094                                 "grid-line-width", &line_width,
15095                                 "grid-line-pattern", (gchar *)&dash_list,
15096                                 NULL);
15097
15098           priv->grid_line_gc = gdk_gc_new (widget->window);
15099           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15100
15101           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15102                                       GDK_LINE_ON_OFF_DASH,
15103                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15104           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15105
15106           g_free (dash_list);
15107         }
15108     }
15109
15110   if (old_grid_lines != grid_lines)
15111     {
15112       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15113
15114       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15115     }
15116 }
15117
15118 /**
15119  * gtk_tree_view_get_enable_tree_lines:
15120  * @tree_view: a #GtkTreeView.
15121  *
15122  * Returns whether or not tree lines are drawn in @tree_view.
15123  *
15124  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15125  * otherwise.
15126  *
15127  * Since: 2.10
15128  */
15129 gboolean
15130 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15131 {
15132   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15133
15134   return tree_view->priv->tree_lines_enabled;
15135 }
15136
15137 /**
15138  * gtk_tree_view_set_enable_tree_lines:
15139  * @tree_view: a #GtkTreeView
15140  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15141  *
15142  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15143  * This does not have any visible effects for lists.
15144  *
15145  * Since: 2.10
15146  */
15147 void
15148 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15149                                      gboolean     enabled)
15150 {
15151   GtkTreeViewPrivate *priv;
15152   GtkWidget *widget;
15153   gboolean was_enabled;
15154
15155   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15156
15157   enabled = enabled != FALSE;
15158
15159   priv = tree_view->priv;
15160   widget = GTK_WIDGET (tree_view);
15161
15162   was_enabled = priv->tree_lines_enabled;
15163
15164   priv->tree_lines_enabled = enabled;
15165
15166   if (GTK_WIDGET_REALIZED (widget))
15167     {
15168       if (!enabled && priv->tree_line_gc)
15169         {
15170           g_object_unref (priv->tree_line_gc);
15171           priv->tree_line_gc = NULL;
15172         }
15173
15174       if (enabled && !priv->tree_line_gc)
15175         {
15176           gint line_width;
15177           guint8 *dash_list;
15178           gtk_widget_style_get (widget,
15179                                 "tree-line-width", &line_width,
15180                                 "tree-line-pattern", (gchar *)&dash_list,
15181                                 NULL);
15182
15183           priv->tree_line_gc = gdk_gc_new (widget->window);
15184           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15185
15186           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15187                                       GDK_LINE_ON_OFF_DASH,
15188                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15189           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15190
15191           g_free (dash_list);
15192         }
15193     }
15194
15195   if (was_enabled != enabled)
15196     {
15197       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15198
15199       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15200     }
15201 }
15202
15203
15204 /**
15205  * gtk_tree_view_set_show_expanders:
15206  * @tree_view: a #GtkTreeView
15207  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15208  *
15209  * Sets whether to draw and enable expanders and indent child rows in
15210  * @tree_view.  When disabled there will be no expanders visible in trees
15211  * and there will be no way to expand and collapse rows by default.  Also
15212  * note that hiding the expanders will disable the default indentation.  You
15213  * can set a custom indentation in this case using
15214  * gtk_tree_view_set_level_indentation().
15215  * This does not have any visible effects for lists.
15216  *
15217  * Since: 2.12
15218  */
15219 void
15220 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15221                                   gboolean     enabled)
15222 {
15223   gboolean was_enabled;
15224
15225   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15226
15227   enabled = enabled != FALSE;
15228   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15229
15230   if (enabled)
15231     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15232   else
15233     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15234
15235   if (enabled != was_enabled)
15236     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15237 }
15238
15239 /**
15240  * gtk_tree_view_get_show_expanders:
15241  * @tree_view: a #GtkTreeView.
15242  *
15243  * Returns whether or not expanders are drawn in @tree_view.
15244  *
15245  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15246  * otherwise.
15247  *
15248  * Since: 2.12
15249  */
15250 gboolean
15251 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15252 {
15253   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15254
15255   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15256 }
15257
15258 /**
15259  * gtk_tree_view_set_level_indentation:
15260  * @tree_view: a #GtkTreeView
15261  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15262  *
15263  * Sets the amount of extra indentation for child levels to use in @tree_view
15264  * in addition to the default indentation.  The value should be specified in
15265  * pixels, a value of 0 disables this feature and in this case only the default
15266  * indentation will be used.
15267  * This does not have any visible effects for lists.
15268  *
15269  * Since: 2.12
15270  */
15271 void
15272 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15273                                      gint         indentation)
15274 {
15275   tree_view->priv->level_indentation = indentation;
15276
15277   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15278 }
15279
15280 /**
15281  * gtk_tree_view_get_level_indentation:
15282  * @tree_view: a #GtkTreeView.
15283  *
15284  * Returns the amount, in pixels, of extra indentation for child levels
15285  * in @tree_view.
15286  *
15287  * Return value: the amount of extra indentation for child levels in
15288  * @tree_view.  A return value of 0 means that this feature is disabled.
15289  *
15290  * Since: 2.12
15291  */
15292 gint
15293 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15294 {
15295   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15296
15297   return tree_view->priv->level_indentation;
15298 }
15299
15300 /**
15301  * gtk_tree_view_set_tooltip_row:
15302  * @tree_view: a #GtkTreeView
15303  * @tooltip: a #GtkTooltip
15304  * @path: a #GtkTreePath
15305  *
15306  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15307  * See also gtk_tooltip_set_tip_area().
15308  *
15309  * Since: 2.12
15310  */
15311 void
15312 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15313                                GtkTooltip  *tooltip,
15314                                GtkTreePath *path)
15315 {
15316   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15317   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15318
15319   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15320 }
15321
15322 /**
15323  * gtk_tree_view_set_tooltip_cell:
15324  * @tree_view: a #GtkTreeView
15325  * @tooltip: a #GtkTooltip
15326  * @path: a #GtkTreePath or %NULL
15327  * @column: a #GtkTreeViewColumn or %NULL
15328  * @cell: a #GtkCellRenderer or %NULL
15329  *
15330  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15331  * in common.  For example if @path is %NULL and @column is set, the tip
15332  * area will be set to the full area covered by @column.  See also
15333  * gtk_tooltip_set_tip_area().
15334  *
15335  * Note that if @path is not specified and @cell is set and part of a column
15336  * containing the expander, the tooltip might not show and hide at the correct
15337  * position.  In such cases @path must be set to the current node under the
15338  * mouse cursor for this function to operate correctly.
15339  *
15340  * Since: 2.12
15341  */
15342 void
15343 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15344                                 GtkTooltip        *tooltip,
15345                                 GtkTreePath       *path,
15346                                 GtkTreeViewColumn *column,
15347                                 GtkCellRenderer   *cell)
15348 {
15349   GdkRectangle rect;
15350
15351   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15352   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15353
15354   if (column)
15355     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
15356
15357   if (cell)
15358     g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
15359
15360   /* Determine x values. */
15361   if (column && cell)
15362     {
15363       GdkRectangle tmp;
15364       gint start, width;
15365
15366       /* We always pass in path here, whether it is NULL or not.
15367        * For cells in expander columns path must be specified so that
15368        * we can correctly account for the indentation.  This also means
15369        * that the tooltip is constrained vertically by the "Determine y
15370        * values" code below; this is not a real problem since cells actually
15371        * don't stretch vertically in constrast to columns.
15372        */
15373       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15374       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15375
15376       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15377                                                          tmp.x + start, 0,
15378                                                          &rect.x, NULL);
15379       rect.width = width;
15380     }
15381   else if (column)
15382     {
15383       GdkRectangle tmp;
15384
15385       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15386       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15387                                                          tmp.x, 0,
15388                                                          &rect.x, NULL);
15389       rect.width = tmp.width;
15390     }
15391   else
15392     {
15393       rect.x = 0;
15394       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15395     }
15396
15397   /* Determine y values. */
15398   if (path)
15399     {
15400       GdkRectangle tmp;
15401
15402       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15403       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15404                                                          0, tmp.y,
15405                                                          NULL, &rect.y);
15406       rect.height = tmp.height;
15407     }
15408   else
15409     {
15410       rect.y = 0;
15411       rect.height = tree_view->priv->vadjustment->page_size;
15412     }
15413
15414   gtk_tooltip_set_tip_area (tooltip, &rect);
15415 }
15416
15417 /**
15418  * gtk_tree_view_get_tooltip_context:
15419  * @tree_view: a #GtkTreeView
15420  * @x: the x coordinate (relative to widget coordinates)
15421  * @y: the y coordinate (relative to widget coordinates)
15422  * @keyboard_tip: whether this is a keyboard tooltip or not
15423  * @model: a pointer to receive a #GtkTreeModel or %NULL
15424  * @path: a pointer to receive a #GtkTreePath or %NULL
15425  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15426  *
15427  * This function is supposed to be used in a #GtkWidget::query-tooltip
15428  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15429  * which are received in the signal handler, should be passed to this
15430  * function without modification.
15431  *
15432  * The return value indicates whether there is a tree view row at the given
15433  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15434  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15435  * @model, @path and @iter which have been provided will be set to point to
15436  * that row and the corresponding model.  @x and @y will always be converted
15437  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15438  *
15439  * Return value: whether or not the given tooltip context points to a row.
15440  *
15441  * Since: 2.12
15442  */
15443 gboolean
15444 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15445                                    gint          *x,
15446                                    gint          *y,
15447                                    gboolean       keyboard_tip,
15448                                    GtkTreeModel **model,
15449                                    GtkTreePath  **path,
15450                                    GtkTreeIter   *iter)
15451 {
15452   GtkTreePath *tmppath = NULL;
15453
15454   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15455   g_return_val_if_fail (x != NULL, FALSE);
15456   g_return_val_if_fail (y != NULL, FALSE);
15457
15458   if (keyboard_tip)
15459     {
15460       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15461
15462       if (!tmppath)
15463         return FALSE;
15464     }
15465   else
15466     {
15467       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15468                                                          x, y);
15469
15470       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15471                                           &tmppath, NULL, NULL, NULL))
15472         return FALSE;
15473     }
15474
15475   if (model)
15476     *model = gtk_tree_view_get_model (tree_view);
15477
15478   if (iter)
15479     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15480                              iter, tmppath);
15481
15482   if (path)
15483     *path = tmppath;
15484   else
15485     gtk_tree_path_free (tmppath);
15486
15487   return TRUE;
15488 }
15489
15490 static gboolean
15491 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15492                                     gint        x,
15493                                     gint        y,
15494                                     gboolean    keyboard_tip,
15495                                     GtkTooltip *tooltip,
15496                                     gpointer    data)
15497 {
15498   GValue value = { 0, };
15499   GValue transformed = { 0, };
15500   GtkTreeIter iter;
15501   GtkTreePath *path;
15502   GtkTreeModel *model;
15503   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15504
15505   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15506                                           &x, &y,
15507                                           keyboard_tip,
15508                                           &model, &path, &iter))
15509     return FALSE;
15510
15511   gtk_tree_model_get_value (model, &iter,
15512                             tree_view->priv->tooltip_column, &value);
15513
15514   g_value_init (&transformed, G_TYPE_STRING);
15515
15516   if (!g_value_transform (&value, &transformed))
15517     {
15518       g_value_unset (&value);
15519       gtk_tree_path_free (path);
15520
15521       return FALSE;
15522     }
15523
15524   g_value_unset (&value);
15525
15526   if (!g_value_get_string (&transformed))
15527     {
15528       g_value_unset (&transformed);
15529       gtk_tree_path_free (path);
15530
15531       return FALSE;
15532     }
15533
15534   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15535   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15536
15537   gtk_tree_path_free (path);
15538   g_value_unset (&transformed);
15539
15540   return TRUE;
15541 }
15542
15543 /**
15544  * gtk_tree_view_set_tooltip_column:
15545  * @tree_view: a #GtkTreeView
15546  * @column: an integer, which is a valid column number for @tree_view's model
15547  *
15548  * If you only plan to have simple (text-only) tooltips on full rows, you
15549  * can use this function to have #GtkTreeView handle these automatically
15550  * for you. @column should be set to the column in @tree_view's model
15551  * containing the tooltip texts, or -1 to disable this feature.
15552  *
15553  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15554  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15555  *
15556  * Since: 2.12
15557  */
15558 void
15559 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15560                                   gint         column)
15561 {
15562   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15563
15564   if (column == tree_view->priv->tooltip_column)
15565     return;
15566
15567   if (column == -1)
15568     {
15569       g_signal_handlers_disconnect_by_func (tree_view,
15570                                             gtk_tree_view_set_tooltip_query_cb,
15571                                             NULL);
15572       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15573     }
15574   else
15575     {
15576       if (tree_view->priv->tooltip_column == -1)
15577         {
15578           g_signal_connect (tree_view, "query-tooltip",
15579                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15580           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15581         }
15582     }
15583
15584   tree_view->priv->tooltip_column = column;
15585   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15586 }
15587
15588 /**
15589  * gtk_tree_view_get_tooltip_column:
15590  * @tree_view: a #GtkTreeView
15591  *
15592  * Returns the column of @tree_view's model which is being used for
15593  * displaying tooltips on @tree_view's rows.
15594  *
15595  * Return value: the index of the tooltip column that is currently being
15596  * used, or -1 if this is disabled.
15597  *
15598  * Since: 2.12
15599  */
15600 gint
15601 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15602 {
15603   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15604
15605   return tree_view->priv->tooltip_column;
15606 }
15607
15608 #define __GTK_TREE_VIEW_C__
15609 #include "gtkaliasdef.c"