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   tree_view->priv->post_validation_flag = FALSE;
1375 }
1376
1377 \f
1378
1379 /* GObject Methods
1380  */
1381
1382 static void
1383 gtk_tree_view_set_property (GObject         *object,
1384                             guint            prop_id,
1385                             const GValue    *value,
1386                             GParamSpec      *pspec)
1387 {
1388   GtkTreeView *tree_view;
1389
1390   tree_view = GTK_TREE_VIEW (object);
1391
1392   switch (prop_id)
1393     {
1394     case PROP_MODEL:
1395       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1396       break;
1397     case PROP_HADJUSTMENT:
1398       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1399       break;
1400     case PROP_VADJUSTMENT:
1401       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1402       break;
1403     case PROP_HEADERS_VISIBLE:
1404       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1405       break;
1406     case PROP_HEADERS_CLICKABLE:
1407       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1408       break;
1409     case PROP_EXPANDER_COLUMN:
1410       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1411       break;
1412     case PROP_REORDERABLE:
1413       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1414       break;
1415     case PROP_RULES_HINT:
1416       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1417       break;
1418     case PROP_ENABLE_SEARCH:
1419       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1420       break;
1421     case PROP_SEARCH_COLUMN:
1422       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1423       break;
1424     case PROP_FIXED_HEIGHT_MODE:
1425       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1426       break;
1427     case PROP_HOVER_SELECTION:
1428       tree_view->priv->hover_selection = g_value_get_boolean (value);
1429       break;
1430     case PROP_HOVER_EXPAND:
1431       tree_view->priv->hover_expand = g_value_get_boolean (value);
1432       break;
1433     case PROP_SHOW_EXPANDERS:
1434       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1435       break;
1436     case PROP_LEVEL_INDENTATION:
1437       tree_view->priv->level_indentation = g_value_get_int (value);
1438       break;
1439     case PROP_RUBBER_BANDING:
1440       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1441       break;
1442     case PROP_ENABLE_GRID_LINES:
1443       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1444       break;
1445     case PROP_ENABLE_TREE_LINES:
1446       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1447       break;
1448     case PROP_TOOLTIP_COLUMN:
1449       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1450       break;
1451     default:
1452       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1453       break;
1454     }
1455 }
1456
1457 static void
1458 gtk_tree_view_get_property (GObject    *object,
1459                             guint       prop_id,
1460                             GValue     *value,
1461                             GParamSpec *pspec)
1462 {
1463   GtkTreeView *tree_view;
1464
1465   tree_view = GTK_TREE_VIEW (object);
1466
1467   switch (prop_id)
1468     {
1469     case PROP_MODEL:
1470       g_value_set_object (value, tree_view->priv->model);
1471       break;
1472     case PROP_HADJUSTMENT:
1473       g_value_set_object (value, tree_view->priv->hadjustment);
1474       break;
1475     case PROP_VADJUSTMENT:
1476       g_value_set_object (value, tree_view->priv->vadjustment);
1477       break;
1478     case PROP_HEADERS_VISIBLE:
1479       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1480       break;
1481     case PROP_HEADERS_CLICKABLE:
1482       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1483       break;
1484     case PROP_EXPANDER_COLUMN:
1485       g_value_set_object (value, tree_view->priv->expander_column);
1486       break;
1487     case PROP_REORDERABLE:
1488       g_value_set_boolean (value, tree_view->priv->reorderable);
1489       break;
1490     case PROP_RULES_HINT:
1491       g_value_set_boolean (value, tree_view->priv->has_rules);
1492       break;
1493     case PROP_ENABLE_SEARCH:
1494       g_value_set_boolean (value, tree_view->priv->enable_search);
1495       break;
1496     case PROP_SEARCH_COLUMN:
1497       g_value_set_int (value, tree_view->priv->search_column);
1498       break;
1499     case PROP_FIXED_HEIGHT_MODE:
1500       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1501       break;
1502     case PROP_HOVER_SELECTION:
1503       g_value_set_boolean (value, tree_view->priv->hover_selection);
1504       break;
1505     case PROP_HOVER_EXPAND:
1506       g_value_set_boolean (value, tree_view->priv->hover_expand);
1507       break;
1508     case PROP_SHOW_EXPANDERS:
1509       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1510       break;
1511     case PROP_LEVEL_INDENTATION:
1512       g_value_set_int (value, tree_view->priv->level_indentation);
1513       break;
1514     case PROP_RUBBER_BANDING:
1515       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1516       break;
1517     case PROP_ENABLE_GRID_LINES:
1518       g_value_set_enum (value, tree_view->priv->grid_lines);
1519       break;
1520     case PROP_ENABLE_TREE_LINES:
1521       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1522       break;
1523     case PROP_TOOLTIP_COLUMN:
1524       g_value_set_int (value, tree_view->priv->tooltip_column);
1525       break;
1526     default:
1527       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1528       break;
1529     }
1530 }
1531
1532 static void
1533 gtk_tree_view_finalize (GObject *object)
1534 {
1535   (* G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize) (object);
1536 }
1537
1538 \f
1539
1540 static void
1541 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1542                                    GtkBuilder  *builder,
1543                                    GObject     *child,
1544                                    const gchar *type)
1545 {
1546   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1547 }
1548
1549 /* GtkObject Methods
1550  */
1551
1552 static void
1553 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1554 {
1555   _gtk_rbtree_free (tree_view->priv->tree);
1556
1557   tree_view->priv->tree = NULL;
1558   tree_view->priv->button_pressed_node = NULL;
1559   tree_view->priv->button_pressed_tree = NULL;
1560   tree_view->priv->prelight_tree = NULL;
1561   tree_view->priv->prelight_node = NULL;
1562   tree_view->priv->expanded_collapsed_node = NULL;
1563   tree_view->priv->expanded_collapsed_tree = NULL;
1564 }
1565
1566 static void
1567 gtk_tree_view_destroy (GtkObject *object)
1568 {
1569   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1570   GList *list;
1571
1572   gtk_tree_view_stop_editing (tree_view, TRUE);
1573
1574   if (tree_view->priv->columns != NULL)
1575     {
1576       list = tree_view->priv->columns;
1577       while (list)
1578         {
1579           GtkTreeViewColumn *column;
1580           column = GTK_TREE_VIEW_COLUMN (list->data);
1581           list = list->next;
1582           gtk_tree_view_remove_column (tree_view, column);
1583         }
1584       tree_view->priv->columns = NULL;
1585     }
1586
1587   if (tree_view->priv->tree != NULL)
1588     {
1589       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1590
1591       gtk_tree_view_free_rbtree (tree_view);
1592     }
1593
1594   if (tree_view->priv->selection != NULL)
1595     {
1596       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1597       g_object_unref (tree_view->priv->selection);
1598       tree_view->priv->selection = NULL;
1599     }
1600
1601   if (tree_view->priv->scroll_to_path != NULL)
1602     {
1603       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1604       tree_view->priv->scroll_to_path = NULL;
1605     }
1606
1607   if (tree_view->priv->drag_dest_row != NULL)
1608     {
1609       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1610       tree_view->priv->drag_dest_row = NULL;
1611     }
1612
1613   if (tree_view->priv->last_button_press != NULL)
1614     {
1615       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
1616       tree_view->priv->last_button_press = NULL;
1617     }
1618
1619   if (tree_view->priv->last_button_press_2 != NULL)
1620     {
1621       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
1622       tree_view->priv->last_button_press_2 = NULL;
1623     }
1624
1625   if (tree_view->priv->top_row != NULL)
1626     {
1627       gtk_tree_row_reference_free (tree_view->priv->top_row);
1628       tree_view->priv->top_row = NULL;
1629     }
1630
1631   if (tree_view->priv->column_drop_func_data &&
1632       tree_view->priv->column_drop_func_data_destroy)
1633     {
1634       (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
1635       tree_view->priv->column_drop_func_data = NULL;
1636     }
1637
1638   if (tree_view->priv->destroy_count_destroy &&
1639       tree_view->priv->destroy_count_data)
1640     {
1641       (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
1642       tree_view->priv->destroy_count_data = NULL;
1643     }
1644
1645   gtk_tree_row_reference_free (tree_view->priv->cursor);
1646   tree_view->priv->cursor = NULL;
1647
1648   gtk_tree_row_reference_free (tree_view->priv->anchor);
1649   tree_view->priv->anchor = NULL;
1650
1651   /* destroy interactive search dialog */
1652   if (tree_view->priv->search_window)
1653     {
1654       gtk_widget_destroy (tree_view->priv->search_window);
1655       tree_view->priv->search_window = NULL;
1656       tree_view->priv->search_entry = NULL;
1657       if (tree_view->priv->typeselect_flush_timeout)
1658         {
1659           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1660           tree_view->priv->typeselect_flush_timeout = 0;
1661         }
1662     }
1663
1664   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1665     {
1666       (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
1667       tree_view->priv->search_user_data = NULL;
1668     }
1669
1670   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1671     {
1672       (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
1673       tree_view->priv->search_position_user_data = NULL;
1674     }
1675
1676   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1677     {
1678       (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
1679       tree_view->priv->row_separator_data = NULL;
1680     }
1681
1682   gtk_tree_view_set_model (tree_view, NULL);
1683
1684   if (tree_view->priv->hadjustment)
1685     {
1686       g_object_unref (tree_view->priv->hadjustment);
1687       tree_view->priv->hadjustment = NULL;
1688     }
1689   if (tree_view->priv->vadjustment)
1690     {
1691       g_object_unref (tree_view->priv->vadjustment);
1692       tree_view->priv->vadjustment = NULL;
1693     }
1694
1695   if (GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy)
1696     (* GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy) (object);
1697 }
1698
1699 \f
1700
1701 /* GtkWidget Methods
1702  */
1703
1704 /* GtkWidget::map helper */
1705 static void
1706 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1707 {
1708   GList *list;
1709
1710   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1711
1712   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1713     {
1714       GtkTreeViewColumn *column;
1715
1716       for (list = tree_view->priv->columns; list; list = list->next)
1717         {
1718           column = list->data;
1719           if (GTK_WIDGET_VISIBLE (column->button) &&
1720               !GTK_WIDGET_MAPPED (column->button))
1721             gtk_widget_map (column->button);
1722         }
1723       for (list = tree_view->priv->columns; list; list = list->next)
1724         {
1725           column = list->data;
1726           if (column->visible == FALSE)
1727             continue;
1728           if (column->resizable)
1729             {
1730               gdk_window_raise (column->window);
1731               gdk_window_show (column->window);
1732             }
1733           else
1734             gdk_window_hide (column->window);
1735         }
1736       gdk_window_show (tree_view->priv->header_window);
1737     }
1738 }
1739
1740 static void
1741 gtk_tree_view_map (GtkWidget *widget)
1742 {
1743   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1744   GList *tmp_list;
1745
1746   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1747
1748   tmp_list = tree_view->priv->children;
1749   while (tmp_list)
1750     {
1751       GtkTreeViewChild *child = tmp_list->data;
1752       tmp_list = tmp_list->next;
1753
1754       if (GTK_WIDGET_VISIBLE (child->widget))
1755         {
1756           if (!GTK_WIDGET_MAPPED (child->widget))
1757             gtk_widget_map (child->widget);
1758         }
1759     }
1760   gdk_window_show (tree_view->priv->bin_window);
1761
1762   gtk_tree_view_map_buttons (tree_view);
1763
1764   gdk_window_show (widget->window);
1765 }
1766
1767 static void
1768 gtk_tree_view_realize (GtkWidget *widget)
1769 {
1770   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1771   GList *tmp_list;
1772   GdkWindowAttr attributes;
1773   gint attributes_mask;
1774
1775   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1776
1777   /* Make the main, clipping window */
1778   attributes.window_type = GDK_WINDOW_CHILD;
1779   attributes.x = widget->allocation.x;
1780   attributes.y = widget->allocation.y;
1781   attributes.width = widget->allocation.width;
1782   attributes.height = widget->allocation.height;
1783   attributes.wclass = GDK_INPUT_OUTPUT;
1784   attributes.visual = gtk_widget_get_visual (widget);
1785   attributes.colormap = gtk_widget_get_colormap (widget);
1786   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1787
1788   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1789
1790   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1791                                    &attributes, attributes_mask);
1792   gdk_window_set_user_data (widget->window, widget);
1793
1794   /* Make the window for the tree */
1795   attributes.x = 0;
1796   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1797   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1798   attributes.height = widget->allocation.height;
1799   attributes.event_mask = GDK_EXPOSURE_MASK |
1800     GDK_SCROLL_MASK |
1801     GDK_POINTER_MOTION_MASK |
1802     GDK_ENTER_NOTIFY_MASK |
1803     GDK_LEAVE_NOTIFY_MASK |
1804     GDK_BUTTON_PRESS_MASK |
1805     GDK_BUTTON_RELEASE_MASK |
1806     gtk_widget_get_events (widget);
1807
1808   tree_view->priv->bin_window = gdk_window_new (widget->window,
1809                                                 &attributes, attributes_mask);
1810   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1811
1812   /* Make the column header window */
1813   attributes.x = 0;
1814   attributes.y = 0;
1815   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1816   attributes.height = tree_view->priv->header_height;
1817   attributes.event_mask = (GDK_EXPOSURE_MASK |
1818                            GDK_SCROLL_MASK |
1819                            GDK_BUTTON_PRESS_MASK |
1820                            GDK_BUTTON_RELEASE_MASK |
1821                            GDK_KEY_PRESS_MASK |
1822                            GDK_KEY_RELEASE_MASK) |
1823     gtk_widget_get_events (widget);
1824
1825   tree_view->priv->header_window = gdk_window_new (widget->window,
1826                                                    &attributes, attributes_mask);
1827   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1828
1829   /* Add them all up. */
1830   widget->style = gtk_style_attach (widget->style, widget->window);
1831   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1832   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1833   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1834
1835   tmp_list = tree_view->priv->children;
1836   while (tmp_list)
1837     {
1838       GtkTreeViewChild *child = tmp_list->data;
1839       tmp_list = tmp_list->next;
1840
1841       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1842     }
1843
1844   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1845     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1846
1847   /* Need to call those here, since they create GCs */
1848   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1849   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1850
1851   install_presize_handler (tree_view);
1852 }
1853
1854 static void
1855 gtk_tree_view_unrealize (GtkWidget *widget)
1856 {
1857   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1858   GtkTreeViewPrivate *priv = tree_view->priv;
1859   GList *list;
1860
1861   if (priv->scroll_timeout != 0)
1862     {
1863       g_source_remove (priv->scroll_timeout);
1864       priv->scroll_timeout = 0;
1865     }
1866
1867   if (priv->auto_expand_timeout != 0)
1868     {
1869       g_source_remove (priv->auto_expand_timeout);
1870       priv->auto_expand_timeout = 0;
1871     }
1872
1873   if (priv->open_dest_timeout != 0)
1874     {
1875       g_source_remove (priv->open_dest_timeout);
1876       priv->open_dest_timeout = 0;
1877     }
1878
1879   remove_expand_collapse_timeout (tree_view);
1880
1881   if (priv->presize_handler_timer != 0)
1882     {
1883       g_source_remove (priv->presize_handler_timer);
1884       priv->presize_handler_timer = 0;
1885     }
1886
1887   if (priv->validate_rows_timer != 0)
1888     {
1889       g_source_remove (priv->validate_rows_timer);
1890       priv->validate_rows_timer = 0;
1891     }
1892
1893   if (priv->scroll_sync_timer != 0)
1894     {
1895       g_source_remove (priv->scroll_sync_timer);
1896       priv->scroll_sync_timer = 0;
1897     }
1898
1899   if (priv->typeselect_flush_timeout)
1900     {
1901       g_source_remove (priv->typeselect_flush_timeout);
1902       priv->typeselect_flush_timeout = 0;
1903     }
1904
1905   for (list = priv->columns; list; list = list->next)
1906     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1907
1908   gdk_window_set_user_data (priv->bin_window, NULL);
1909   gdk_window_destroy (priv->bin_window);
1910   priv->bin_window = NULL;
1911
1912   gdk_window_set_user_data (priv->header_window, NULL);
1913   gdk_window_destroy (priv->header_window);
1914   priv->header_window = NULL;
1915
1916   if (priv->drag_window)
1917     {
1918       gdk_window_set_user_data (priv->drag_window, NULL);
1919       gdk_window_destroy (priv->drag_window);
1920       priv->drag_window = NULL;
1921     }
1922
1923   if (priv->drag_highlight_window)
1924     {
1925       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1926       gdk_window_destroy (priv->drag_highlight_window);
1927       priv->drag_highlight_window = NULL;
1928     }
1929
1930   if (priv->tree_line_gc)
1931     {
1932       g_object_unref (priv->tree_line_gc);
1933       priv->tree_line_gc = NULL;
1934     }
1935
1936   if (priv->grid_line_gc)
1937     {
1938       g_object_unref (priv->grid_line_gc);
1939       priv->grid_line_gc = NULL;
1940     }
1941
1942   /* GtkWidget::unrealize destroys children and widget->window */
1943   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize)
1944     (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize) (widget);
1945 }
1946
1947 /* GtkWidget::size_request helper */
1948 static void
1949 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1950 {
1951   GList *list;
1952
1953   tree_view->priv->header_height = 0;
1954
1955   if (tree_view->priv->model)
1956     {
1957       for (list = tree_view->priv->columns; list; list = list->next)
1958         {
1959           GtkRequisition requisition;
1960           GtkTreeViewColumn *column = list->data;
1961
1962           if (column->button == NULL)
1963             continue;
1964
1965           column = list->data;
1966
1967           gtk_widget_size_request (column->button, &requisition);
1968           column->button_request = requisition.width;
1969           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1970         }
1971     }
1972 }
1973
1974
1975 /* Called only by ::size_request */
1976 static void
1977 gtk_tree_view_update_size (GtkTreeView *tree_view)
1978 {
1979   GList *list;
1980   GtkTreeViewColumn *column;
1981   gint i;
1982
1983   if (tree_view->priv->model == NULL)
1984     {
1985       tree_view->priv->width = 0;
1986       tree_view->priv->prev_width = 0;
1987       tree_view->priv->height = 0;
1988       return;
1989     }
1990
1991   tree_view->priv->prev_width = tree_view->priv->width;
1992   tree_view->priv->width = 0;
1993
1994   /* keep this in sync with size_allocate below */
1995   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1996     {
1997       gint real_requested_width = 0;
1998       column = list->data;
1999       if (!column->visible)
2000         continue;
2001
2002       if (column->use_resized_width)
2003         {
2004           real_requested_width = column->resized_width;
2005         }
2006       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2007         {
2008           real_requested_width = column->fixed_width;
2009         }
2010       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2011         {
2012           real_requested_width = MAX (column->requested_width, column->button_request);
2013         }
2014       else
2015         {
2016           real_requested_width = column->requested_width;
2017         }
2018
2019       if (column->min_width != -1)
2020         real_requested_width = MAX (real_requested_width, column->min_width);
2021       if (column->max_width != -1)
2022         real_requested_width = MIN (real_requested_width, column->max_width);
2023
2024       tree_view->priv->width += real_requested_width;
2025     }
2026
2027   if (tree_view->priv->tree == NULL)
2028     tree_view->priv->height = 0;
2029   else
2030     tree_view->priv->height = tree_view->priv->tree->root->offset;
2031 }
2032
2033 static void
2034 gtk_tree_view_size_request (GtkWidget      *widget,
2035                             GtkRequisition *requisition)
2036 {
2037   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2038   GList *tmp_list;
2039
2040   /* we validate GTK_TREE_VIEW_NUM_ROWS_PER_IDLE rows initially just to make
2041    * sure we have some size. In practice, with a lot of static lists, this
2042    * should get a good width.
2043    */
2044   do_validate_rows (tree_view, FALSE);
2045   gtk_tree_view_size_request_columns (tree_view);
2046   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2047
2048   requisition->width = tree_view->priv->width;
2049   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2050
2051   tmp_list = tree_view->priv->children;
2052
2053   while (tmp_list)
2054     {
2055       GtkTreeViewChild *child = tmp_list->data;
2056       GtkRequisition child_requisition;
2057
2058       tmp_list = tmp_list->next;
2059
2060       if (GTK_WIDGET_VISIBLE (child->widget))
2061         gtk_widget_size_request (child->widget, &child_requisition);
2062     }
2063 }
2064
2065
2066 static void
2067 invalidate_column (GtkTreeView       *tree_view,
2068                    GtkTreeViewColumn *column)
2069 {
2070   gint column_offset = 0;
2071   GList *list;
2072   GtkWidget *widget = GTK_WIDGET (tree_view);
2073   gboolean rtl;
2074
2075   if (!GTK_WIDGET_REALIZED (widget))
2076     return;
2077
2078   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2079   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2080        list;
2081        list = (rtl ? list->prev : list->next))
2082     {
2083       GtkTreeViewColumn *tmpcolumn = list->data;
2084       if (tmpcolumn == column)
2085         {
2086           GdkRectangle invalid_rect;
2087
2088           invalid_rect.x = column_offset;
2089           invalid_rect.y = 0;
2090           invalid_rect.width = column->width;
2091           invalid_rect.height = widget->allocation.height;
2092
2093           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2094           break;
2095         }
2096
2097       column_offset += tmpcolumn->width;
2098     }
2099 }
2100
2101 static void
2102 invalidate_last_column (GtkTreeView *tree_view)
2103 {
2104   GList *last_column;
2105   gboolean rtl;
2106
2107   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2108
2109   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2110        last_column;
2111        last_column = (rtl ? last_column->next : last_column->prev))
2112     {
2113       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2114         {
2115           invalidate_column (tree_view, last_column->data);
2116           return;
2117         }
2118     }
2119 }
2120
2121 static gint
2122 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2123                                                     GtkTreeViewColumn *column)
2124 {
2125   gint real_requested_width;
2126
2127   if (column->use_resized_width)
2128     {
2129       real_requested_width = column->resized_width;
2130     }
2131   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2132     {
2133       real_requested_width = column->fixed_width;
2134     }
2135   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2136     {
2137       real_requested_width = MAX (column->requested_width, column->button_request);
2138     }
2139   else
2140     {
2141       real_requested_width = column->requested_width;
2142       if (real_requested_width < 0)
2143         real_requested_width = 0;
2144     }
2145
2146   if (column->min_width != -1)
2147     real_requested_width = MAX (real_requested_width, column->min_width);
2148   if (column->max_width != -1)
2149     real_requested_width = MIN (real_requested_width, column->max_width);
2150
2151   return real_requested_width;
2152 }
2153
2154 /* GtkWidget::size_allocate helper */
2155 static void
2156 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2157                                      gboolean  *width_changed)
2158 {
2159   GtkTreeView *tree_view;
2160   GList *list, *first_column, *last_column;
2161   GtkTreeViewColumn *column;
2162   GtkAllocation allocation;
2163   gint width = 0;
2164   gint extra, extra_per_column, extra_for_last;
2165   gint full_requested_width = 0;
2166   gint number_of_expand_columns = 0;
2167   gboolean column_changed = FALSE;
2168   gboolean rtl;
2169   gboolean update_expand;
2170
2171   tree_view = GTK_TREE_VIEW (widget);
2172
2173   for (last_column = g_list_last (tree_view->priv->columns);
2174        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2175        last_column = last_column->prev)
2176     ;
2177   if (last_column == NULL)
2178     return;
2179
2180   for (first_column = g_list_first (tree_view->priv->columns);
2181        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2182        first_column = first_column->next)
2183     ;
2184
2185   allocation.y = 0;
2186   allocation.height = tree_view->priv->header_height;
2187
2188   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2189
2190   /* find out how many extra space and expandable columns we have */
2191   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2192     {
2193       column = (GtkTreeViewColumn *)list->data;
2194
2195       if (!column->visible)
2196         continue;
2197
2198       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2199
2200       if (column->expand)
2201         number_of_expand_columns++;
2202     }
2203
2204   /* Only update the expand value if the width of the widget has changed,
2205    * or the number of expand columns has changed, or if there are no expand
2206    * columns, or if we didn't have an size-allocation yet after the
2207    * last validated node.
2208    */
2209   update_expand = (width_changed && *width_changed == TRUE)
2210       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2211       || number_of_expand_columns == 0
2212       || tree_view->priv->post_validation_flag == TRUE;
2213
2214   tree_view->priv->post_validation_flag = FALSE;
2215
2216   if (!update_expand)
2217     {
2218       extra = tree_view->priv->last_extra_space;
2219       extra_for_last = MAX (widget->allocation.width - full_requested_width - extra, 0);
2220     }
2221   else
2222     {
2223       extra = MAX (widget->allocation.width - full_requested_width, 0);
2224       extra_for_last = 0;
2225
2226       tree_view->priv->last_extra_space = extra;
2227     }
2228
2229   if (number_of_expand_columns > 0)
2230     extra_per_column = extra/number_of_expand_columns;
2231   else
2232     extra_per_column = 0;
2233
2234   if (update_expand)
2235     {
2236       tree_view->priv->last_extra_space_per_column = extra_per_column;
2237       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2238     }
2239
2240   for (list = (rtl ? last_column : first_column);
2241        list != (rtl ? first_column->prev : last_column->next);
2242        list = (rtl ? list->prev : list->next))
2243     {
2244       gint real_requested_width = 0;
2245       gint old_width;
2246
2247       column = list->data;
2248       old_width = column->width;
2249
2250       if (!column->visible)
2251         continue;
2252
2253       /* We need to handle the dragged button specially.
2254        */
2255       if (column == tree_view->priv->drag_column)
2256         {
2257           GtkAllocation drag_allocation;
2258           gdk_drawable_get_size (tree_view->priv->drag_window,
2259                                  &(drag_allocation.width),
2260                                  &(drag_allocation.height));
2261           drag_allocation.x = 0;
2262           drag_allocation.y = 0;
2263           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2264                                     &drag_allocation);
2265           width += drag_allocation.width;
2266           continue;
2267         }
2268
2269       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2270
2271       allocation.x = width;
2272       column->width = real_requested_width;
2273
2274       if (column->expand)
2275         {
2276           if (number_of_expand_columns == 1)
2277             {
2278               /* We add the remander to the last column as
2279                * */
2280               column->width += extra;
2281             }
2282           else
2283             {
2284               column->width += extra_per_column;
2285               extra -= extra_per_column;
2286               number_of_expand_columns --;
2287             }
2288         }
2289       else if (number_of_expand_columns == 0 &&
2290                list == last_column)
2291         {
2292           column->width += extra;
2293         }
2294
2295       /* In addition to expand, the last column can get even more
2296        * extra space so all available space is filled up.
2297        */
2298       if (extra_for_last > 0 && list == last_column)
2299         column->width += extra_for_last;
2300
2301       g_object_notify (G_OBJECT (column), "width");
2302
2303       allocation.width = column->width;
2304       width += column->width;
2305
2306       if (column->width > old_width)
2307         column_changed = TRUE;
2308
2309       gtk_widget_size_allocate (column->button, &allocation);
2310
2311       if (column->window)
2312         gdk_window_move_resize (column->window,
2313                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2314                                 allocation.y,
2315                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2316     }
2317
2318   /* We change the width here.  The user might have been resizing columns,
2319    * so the total width of the tree view changes.
2320    */
2321   tree_view->priv->width = width;
2322   if (width_changed)
2323     *width_changed = TRUE;
2324
2325   if (column_changed)
2326     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2327 }
2328
2329
2330 static void
2331 gtk_tree_view_size_allocate (GtkWidget     *widget,
2332                              GtkAllocation *allocation)
2333 {
2334   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2335   GList *tmp_list;
2336   gboolean width_changed = FALSE;
2337   gint old_width = widget->allocation.width;
2338
2339   if (allocation->width != widget->allocation.width)
2340     width_changed = TRUE;
2341
2342   widget->allocation = *allocation;
2343
2344   tmp_list = tree_view->priv->children;
2345
2346   while (tmp_list)
2347     {
2348       GtkAllocation allocation;
2349
2350       GtkTreeViewChild *child = tmp_list->data;
2351       tmp_list = tmp_list->next;
2352
2353       /* totally ignore our child's requisition */
2354       allocation.x = child->x;
2355       allocation.y = child->y;
2356       allocation.width = child->width;
2357       allocation.height = child->height;
2358       gtk_widget_size_allocate (child->widget, &allocation);
2359     }
2360
2361   /* We size-allocate the columns first because the width of the
2362    * tree view (used in updating the adjustments below) might change.
2363    */
2364   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2365
2366   tree_view->priv->hadjustment->page_size = allocation->width;
2367   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2368   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2369   tree_view->priv->hadjustment->lower = 0;
2370   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2371
2372   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2373     {
2374       if (allocation->width < tree_view->priv->width)
2375         {
2376           if (tree_view->priv->init_hadjust_value)
2377             {
2378               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2379               tree_view->priv->init_hadjust_value = FALSE;
2380             }
2381           else if (allocation->width != old_width)
2382             {
2383               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2384             }
2385           else
2386             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);
2387         }
2388       else
2389         {
2390           tree_view->priv->hadjustment->value = 0;
2391           tree_view->priv->init_hadjust_value = TRUE;
2392         }
2393     }
2394   else
2395     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2396       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2397
2398   gtk_adjustment_changed (tree_view->priv->hadjustment);
2399
2400   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2401   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2402   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2403   tree_view->priv->vadjustment->lower = 0;
2404   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2405
2406   gtk_adjustment_changed (tree_view->priv->vadjustment);
2407
2408   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2409   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2410     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2411   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2412     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2413                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2414   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2415     gtk_tree_view_top_row_to_dy (tree_view);
2416   else
2417     gtk_tree_view_dy_to_top_row (tree_view);
2418
2419   if (GTK_WIDGET_REALIZED (widget))
2420     {
2421       gdk_window_move_resize (widget->window,
2422                               allocation->x, allocation->y,
2423                               allocation->width, allocation->height);
2424       gdk_window_move_resize (tree_view->priv->header_window,
2425                               - (gint) tree_view->priv->hadjustment->value,
2426                               0,
2427                               MAX (tree_view->priv->width, allocation->width),
2428                               tree_view->priv->header_height);
2429       gdk_window_move_resize (tree_view->priv->bin_window,
2430                               - (gint) tree_view->priv->hadjustment->value,
2431                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2432                               MAX (tree_view->priv->width, allocation->width),
2433                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2434     }
2435
2436   if (tree_view->priv->tree == NULL)
2437     invalidate_empty_focus (tree_view);
2438
2439   if (GTK_WIDGET_REALIZED (widget))
2440     {
2441       gboolean has_expand_column = FALSE;
2442       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2443         {
2444           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2445             {
2446               has_expand_column = TRUE;
2447               break;
2448             }
2449         }
2450
2451       /* This little hack only works if we have an LTR locale, and no column has the  */
2452       if (width_changed)
2453         {
2454           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2455               ! has_expand_column)
2456             invalidate_last_column (tree_view);
2457           else
2458             gtk_widget_queue_draw (widget);
2459         }
2460     }
2461 }
2462
2463 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2464 static void
2465 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2466 {
2467   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
2468     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2469   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2470 }
2471
2472 static inline gboolean
2473 row_is_separator (GtkTreeView *tree_view,
2474                   GtkTreeIter *iter,
2475                   GtkTreePath *path)
2476 {
2477   gboolean is_separator = FALSE;
2478
2479   if (tree_view->priv->row_separator_func)
2480     {
2481       GtkTreeIter tmpiter;
2482
2483       if (iter)
2484         tmpiter = *iter;
2485       else
2486         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2487
2488       is_separator = (* tree_view->priv->row_separator_func) (tree_view->priv->model,
2489                                                               &tmpiter,
2490                                                               tree_view->priv->row_separator_data);
2491     }
2492
2493   return is_separator;
2494 }
2495
2496 static gboolean
2497 gtk_tree_view_button_press (GtkWidget      *widget,
2498                             GdkEventButton *event)
2499 {
2500   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2501   GList *list;
2502   GtkTreeViewColumn *column = NULL;
2503   gint i;
2504   GdkRectangle background_area;
2505   GdkRectangle cell_area;
2506   gint vertical_separator;
2507   gint horizontal_separator;
2508   gboolean path_is_selectable;
2509   gboolean rtl;
2510
2511   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2512   gtk_tree_view_stop_editing (tree_view, FALSE);
2513   gtk_widget_style_get (widget,
2514                         "vertical-separator", &vertical_separator,
2515                         "horizontal-separator", &horizontal_separator,
2516                         NULL);
2517
2518
2519   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2520    * we're done handling the button press.
2521    */
2522
2523   if (event->window == tree_view->priv->bin_window)
2524     {
2525       GtkRBNode *node;
2526       GtkRBTree *tree;
2527       GtkTreePath *path;
2528       gchar *path_string;
2529       gint depth;
2530       gint new_y;
2531       gint y_offset;
2532       gint dval;
2533       gint pre_val, aft_val;
2534       GtkTreeViewColumn *column = NULL;
2535       GtkCellRenderer *focus_cell = NULL;
2536       gint column_handled_click = FALSE;
2537       gboolean row_double_click = FALSE;
2538       gboolean rtl;
2539       gboolean node_selected;
2540
2541       /* Empty tree? */
2542       if (tree_view->priv->tree == NULL)
2543         {
2544           grab_focus_and_unset_draw_keyfocus (tree_view);
2545           return TRUE;
2546         }
2547
2548       /* are we in an arrow? */
2549       if (tree_view->priv->prelight_node &&
2550           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2551           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2552         {
2553           if (event->button == 1)
2554             {
2555               gtk_grab_add (widget);
2556               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2557               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2558               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2559                                         tree_view->priv->prelight_tree,
2560                                         tree_view->priv->prelight_node,
2561                                         event->x,
2562                                         event->y);
2563             }
2564
2565           grab_focus_and_unset_draw_keyfocus (tree_view);
2566           return TRUE;
2567         }
2568
2569       /* find the node that was clicked */
2570       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2571       if (new_y < 0)
2572         new_y = 0;
2573       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2574
2575       if (node == NULL)
2576         {
2577           /* We clicked in dead space */
2578           grab_focus_and_unset_draw_keyfocus (tree_view);
2579           return TRUE;
2580         }
2581
2582       /* Get the path and the node */
2583       path = _gtk_tree_view_find_path (tree_view, tree, node);
2584       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2585
2586       if (!path_is_selectable)
2587         {
2588           gtk_tree_path_free (path);
2589           grab_focus_and_unset_draw_keyfocus (tree_view);
2590           return TRUE;
2591         }
2592
2593       depth = gtk_tree_path_get_depth (path);
2594       background_area.y = y_offset + event->y;
2595       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2596       background_area.x = 0;
2597
2598
2599       /* Let the column have a chance at selecting it. */
2600       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2601       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2602            list; list = (rtl ? list->prev : list->next))
2603         {
2604           GtkTreeViewColumn *candidate = list->data;
2605
2606           if (!candidate->visible)
2607             continue;
2608
2609           background_area.width = candidate->width;
2610           if ((background_area.x > (gint) event->x) ||
2611               (background_area.x + background_area.width <= (gint) event->x))
2612             {
2613               background_area.x += background_area.width;
2614               continue;
2615             }
2616
2617           /* we found the focus column */
2618           column = candidate;
2619           cell_area = background_area;
2620           cell_area.width -= horizontal_separator;
2621           cell_area.height -= vertical_separator;
2622           cell_area.x += horizontal_separator/2;
2623           cell_area.y += vertical_separator/2;
2624           if (gtk_tree_view_is_expander_column (tree_view, column))
2625             {
2626               if (!rtl)
2627                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2628               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2629
2630               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2631                 {
2632                   if (!rtl)
2633                     cell_area.x += depth * tree_view->priv->expander_size;
2634                   cell_area.width -= depth * tree_view->priv->expander_size;
2635                 }
2636             }
2637           break;
2638         }
2639
2640       if (column == NULL)
2641         {
2642           gtk_tree_path_free (path);
2643           grab_focus_and_unset_draw_keyfocus (tree_view);
2644           return FALSE;
2645         }
2646
2647       tree_view->priv->focus_column = column;
2648
2649       /* decide if we edit */
2650       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2651           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2652         {
2653           GtkTreePath *anchor;
2654           GtkTreeIter iter;
2655
2656           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2657           gtk_tree_view_column_cell_set_cell_data (column,
2658                                                    tree_view->priv->model,
2659                                                    &iter,
2660                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2661                                                    node->children?TRUE:FALSE);
2662
2663           if (tree_view->priv->anchor)
2664             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2665           else
2666             anchor = NULL;
2667
2668           if ((anchor && !gtk_tree_path_compare (anchor, path))
2669               || !_gtk_tree_view_column_has_editable_cell (column))
2670             {
2671               GtkCellEditable *cell_editable = NULL;
2672
2673               /* FIXME: get the right flags */
2674               guint flags = 0;
2675
2676               path_string = gtk_tree_path_to_string (path);
2677
2678               if (_gtk_tree_view_column_cell_event (column,
2679                                                     &cell_editable,
2680                                                     (GdkEvent *)event,
2681                                                     path_string,
2682                                                     &background_area,
2683                                                     &cell_area, flags))
2684                 {
2685                   if (cell_editable != NULL)
2686                     {
2687                       gint left, right;
2688                       GdkRectangle area;
2689
2690                       area = cell_area;
2691                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2692
2693                       area.x += left;
2694                       area.width -= right + left;
2695
2696                       gtk_tree_view_real_start_editing (tree_view,
2697                                                         column,
2698                                                         path,
2699                                                         cell_editable,
2700                                                         &area,
2701                                                         (GdkEvent *)event,
2702                                                         flags);
2703                       g_free (path_string);
2704                       gtk_tree_path_free (path);
2705                       gtk_tree_path_free (anchor);
2706                       return TRUE;
2707                     }
2708                   column_handled_click = TRUE;
2709                 }
2710               g_free (path_string);
2711             }
2712           if (anchor)
2713             gtk_tree_path_free (anchor);
2714         }
2715
2716       /* select */
2717       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2718       pre_val = tree_view->priv->vadjustment->value;
2719
2720       /* we only handle selection modifications on the first button press
2721        */
2722       if (event->type == GDK_BUTTON_PRESS)
2723         {
2724           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2725             tree_view->priv->ctrl_pressed = TRUE;
2726           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2727             tree_view->priv->shift_pressed = TRUE;
2728
2729           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2730           if (focus_cell)
2731             gtk_tree_view_column_focus_cell (column, focus_cell);
2732
2733           if (event->state & GDK_CONTROL_MASK)
2734             {
2735               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2736               gtk_tree_view_real_toggle_cursor_row (tree_view);
2737             }
2738           else if (event->state & GDK_SHIFT_MASK)
2739             {
2740               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2741               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2742             }
2743           else
2744             {
2745               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2746             }
2747
2748           tree_view->priv->ctrl_pressed = FALSE;
2749           tree_view->priv->shift_pressed = FALSE;
2750         }
2751
2752       /* the treeview may have been scrolled because of _set_cursor,
2753        * correct here
2754        */
2755
2756       aft_val = tree_view->priv->vadjustment->value;
2757       dval = pre_val - aft_val;
2758
2759       cell_area.y += dval;
2760       background_area.y += dval;
2761
2762       /* Save press to possibly begin a drag
2763        */
2764       if (!column_handled_click &&
2765           !tree_view->priv->in_grab &&
2766           tree_view->priv->pressed_button < 0)
2767         {
2768           tree_view->priv->pressed_button = event->button;
2769           tree_view->priv->press_start_x = event->x;
2770           tree_view->priv->press_start_y = event->y;
2771
2772           if (tree_view->priv->rubber_banding_enable
2773               && !node_selected
2774               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2775             {
2776               tree_view->priv->press_start_y += tree_view->priv->dy;
2777               tree_view->priv->rubber_band_x = event->x;
2778               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2779               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2780
2781               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2782                 tree_view->priv->rubber_band_ctrl = TRUE;
2783               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2784                 tree_view->priv->rubber_band_shift = TRUE;
2785             }
2786         }
2787
2788       /* Test if a double click happened on the same row. */
2789       if (event->button == 1)
2790         {
2791           /* We also handle triple clicks here, because a user could have done
2792            * a first click and a second double click on different rows.
2793            */
2794           if ((event->type == GDK_2BUTTON_PRESS
2795                || event->type == GDK_3BUTTON_PRESS)
2796               && tree_view->priv->last_button_press)
2797             {
2798               GtkTreePath *lsc;
2799
2800               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2801
2802               if (lsc)
2803                 {
2804                   row_double_click = !gtk_tree_path_compare (lsc, path);
2805                   gtk_tree_path_free (lsc);
2806                 }
2807             }
2808
2809           if (row_double_click)
2810             {
2811               if (tree_view->priv->last_button_press)
2812                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2813               if (tree_view->priv->last_button_press_2)
2814                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2815               tree_view->priv->last_button_press = NULL;
2816               tree_view->priv->last_button_press_2 = NULL;
2817             }
2818           else
2819             {
2820               if (tree_view->priv->last_button_press)
2821                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2822               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2823               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2824             }
2825         }
2826
2827       if (row_double_click)
2828         {
2829           gtk_grab_remove (widget);
2830           gtk_tree_view_row_activated (tree_view, path, column);
2831
2832           if (tree_view->priv->pressed_button == event->button)
2833             tree_view->priv->pressed_button = -1;
2834         }
2835
2836       gtk_tree_path_free (path);
2837
2838       /* If we activated the row through a double click we don't want to grab
2839        * focus back, as moving focus to another widget is pretty common.
2840        */
2841       if (!row_double_click)
2842         grab_focus_and_unset_draw_keyfocus (tree_view);
2843
2844       return TRUE;
2845     }
2846
2847   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2848    */
2849   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2850     {
2851       column = list->data;
2852       if (event->window == column->window &&
2853           column->resizable &&
2854           column->window)
2855         {
2856           gpointer drag_data;
2857
2858           if (event->type == GDK_2BUTTON_PRESS &&
2859               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2860             {
2861               column->use_resized_width = FALSE;
2862               _gtk_tree_view_column_autosize (tree_view, column);
2863               return TRUE;
2864             }
2865
2866           if (gdk_pointer_grab (column->window, FALSE,
2867                                 GDK_POINTER_MOTION_HINT_MASK |
2868                                 GDK_BUTTON1_MOTION_MASK |
2869                                 GDK_BUTTON_RELEASE_MASK,
2870                                 NULL, NULL, event->time))
2871             return FALSE;
2872
2873           gtk_grab_add (widget);
2874           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2875           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2876
2877           /* block attached dnd signal handler */
2878           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2879           if (drag_data)
2880             g_signal_handlers_block_matched (widget,
2881                                              G_SIGNAL_MATCH_DATA,
2882                                              0, 0, NULL, NULL,
2883                                              drag_data);
2884
2885           tree_view->priv->drag_pos = i;
2886           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2887
2888           if (!GTK_WIDGET_HAS_FOCUS (widget))
2889             gtk_widget_grab_focus (widget);
2890
2891           return TRUE;
2892         }
2893     }
2894   return FALSE;
2895 }
2896
2897 /* GtkWidget::button_release_event helper */
2898 static gboolean
2899 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2900                                           GdkEventButton *event)
2901 {
2902   GtkTreeView *tree_view;
2903   GList *l;
2904   gboolean rtl;
2905
2906   tree_view = GTK_TREE_VIEW (widget);
2907
2908   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2909   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2910   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2911
2912   /* Move the button back */
2913   g_object_ref (tree_view->priv->drag_column->button);
2914   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2915   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2916   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2917   g_object_unref (tree_view->priv->drag_column->button);
2918   gtk_widget_queue_resize (widget);
2919   if (tree_view->priv->drag_column->resizable)
2920     {
2921       gdk_window_raise (tree_view->priv->drag_column->window);
2922       gdk_window_show (tree_view->priv->drag_column->window);
2923     }
2924   else
2925     gdk_window_hide (tree_view->priv->drag_column->window);
2926
2927   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2928
2929   if (rtl)
2930     {
2931       if (tree_view->priv->cur_reorder &&
2932           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2933         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2934                                          tree_view->priv->cur_reorder->right_column);
2935     }
2936   else
2937     {
2938       if (tree_view->priv->cur_reorder &&
2939           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2940         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2941                                          tree_view->priv->cur_reorder->left_column);
2942     }
2943   tree_view->priv->drag_column = NULL;
2944   gdk_window_hide (tree_view->priv->drag_window);
2945
2946   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2947     g_slice_free (GtkTreeViewColumnReorder, l->data);
2948   g_list_free (tree_view->priv->column_drag_info);
2949   tree_view->priv->column_drag_info = NULL;
2950   tree_view->priv->cur_reorder = NULL;
2951
2952   if (tree_view->priv->drag_highlight_window)
2953     gdk_window_hide (tree_view->priv->drag_highlight_window);
2954
2955   /* Reset our flags */
2956   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2957   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2958
2959   return TRUE;
2960 }
2961
2962 /* GtkWidget::button_release_event helper */
2963 static gboolean
2964 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2965                                             GdkEventButton *event)
2966 {
2967   GtkTreeView *tree_view;
2968   gpointer drag_data;
2969
2970   tree_view = GTK_TREE_VIEW (widget);
2971
2972   tree_view->priv->drag_pos = -1;
2973
2974   /* unblock attached dnd signal handler */
2975   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2976   if (drag_data)
2977     g_signal_handlers_unblock_matched (widget,
2978                                        G_SIGNAL_MATCH_DATA,
2979                                        0, 0, NULL, NULL,
2980                                        drag_data);
2981
2982   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2983   gtk_grab_remove (widget);
2984   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2985                               event->time);
2986   return TRUE;
2987 }
2988
2989 static gboolean
2990 gtk_tree_view_button_release (GtkWidget      *widget,
2991                               GdkEventButton *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     return gtk_tree_view_button_release_drag_column (widget, event);
2997
2998   if (tree_view->priv->rubber_band_status)
2999     gtk_tree_view_stop_rubber_band (tree_view);
3000
3001   if (tree_view->priv->pressed_button == event->button)
3002     tree_view->priv->pressed_button = -1;
3003
3004   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3005     return gtk_tree_view_button_release_column_resize (widget, event);
3006
3007   if (tree_view->priv->button_pressed_node == NULL)
3008     return FALSE;
3009
3010   if (event->button == 1)
3011     {
3012       gtk_grab_remove (widget);
3013       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3014           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3015         {
3016           GtkTreePath *path = NULL;
3017
3018           path = _gtk_tree_view_find_path (tree_view,
3019                                            tree_view->priv->button_pressed_tree,
3020                                            tree_view->priv->button_pressed_node);
3021           /* Actually activate the node */
3022           if (tree_view->priv->button_pressed_node->children == NULL)
3023             gtk_tree_view_real_expand_row (tree_view, path,
3024                                            tree_view->priv->button_pressed_tree,
3025                                            tree_view->priv->button_pressed_node,
3026                                            FALSE, TRUE);
3027           else
3028             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3029                                              tree_view->priv->button_pressed_tree,
3030                                              tree_view->priv->button_pressed_node, TRUE);
3031           gtk_tree_path_free (path);
3032         }
3033
3034       tree_view->priv->button_pressed_tree = NULL;
3035       tree_view->priv->button_pressed_node = NULL;
3036     }
3037
3038   return TRUE;
3039 }
3040
3041 static gboolean
3042 gtk_tree_view_grab_broken (GtkWidget          *widget,
3043                            GdkEventGrabBroken *event)
3044 {
3045   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3046
3047   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3048     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3049
3050   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3051     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3052
3053   return TRUE;
3054 }
3055
3056 #if 0
3057 static gboolean
3058 gtk_tree_view_configure (GtkWidget *widget,
3059                          GdkEventConfigure *event)
3060 {
3061   GtkTreeView *tree_view;
3062
3063   tree_view = GTK_TREE_VIEW (widget);
3064   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3065
3066   return FALSE;
3067 }
3068 #endif
3069
3070 /* GtkWidget::motion_event function set.
3071  */
3072
3073 static gboolean
3074 coords_are_over_arrow (GtkTreeView *tree_view,
3075                        GtkRBTree   *tree,
3076                        GtkRBNode   *node,
3077                        /* these are in bin window coords */
3078                        gint         x,
3079                        gint         y)
3080 {
3081   GdkRectangle arrow;
3082   gint x2;
3083
3084   if (!GTK_WIDGET_REALIZED (tree_view))
3085     return FALSE;
3086
3087   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3088     return FALSE;
3089
3090   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3091
3092   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3093
3094   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3095
3096   arrow.width = x2 - arrow.x;
3097
3098   return (x >= arrow.x &&
3099           x < (arrow.x + arrow.width) &&
3100           y >= arrow.y &&
3101           y < (arrow.y + arrow.height));
3102 }
3103
3104 static gboolean
3105 auto_expand_timeout (gpointer data)
3106 {
3107   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3108   GtkTreePath *path;
3109
3110   if (tree_view->priv->prelight_node)
3111     {
3112       path = _gtk_tree_view_find_path (tree_view,
3113                                        tree_view->priv->prelight_tree,
3114                                        tree_view->priv->prelight_node);
3115
3116       if (tree_view->priv->prelight_node->children)
3117         gtk_tree_view_collapse_row (tree_view, path);
3118       else
3119         gtk_tree_view_expand_row (tree_view, path, FALSE);
3120
3121       gtk_tree_path_free (path);
3122     }
3123
3124   tree_view->priv->auto_expand_timeout = 0;
3125
3126   return FALSE;
3127 }
3128
3129 static void
3130 remove_auto_expand_timeout (GtkTreeView *tree_view)
3131 {
3132   if (tree_view->priv->auto_expand_timeout != 0)
3133     {
3134       g_source_remove (tree_view->priv->auto_expand_timeout);
3135       tree_view->priv->auto_expand_timeout = 0;
3136     }
3137 }
3138
3139 static void
3140 do_prelight (GtkTreeView *tree_view,
3141              GtkRBTree   *tree,
3142              GtkRBNode   *node,
3143              /* these are in bin_window coords */
3144              gint         x,
3145              gint         y)
3146 {
3147   if (tree_view->priv->prelight_tree == tree &&
3148       tree_view->priv->prelight_node == node)
3149     {
3150       /*  We are still on the same node,
3151           but we might need to take care of the arrow  */
3152
3153       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3154         {
3155           gboolean over_arrow;
3156           gboolean flag_set;
3157
3158           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3159           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3160                                              GTK_TREE_VIEW_ARROW_PRELIT);
3161
3162           if (over_arrow != flag_set)
3163             {
3164               if (over_arrow)
3165                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3166                                         GTK_TREE_VIEW_ARROW_PRELIT);
3167               else
3168                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3169                                           GTK_TREE_VIEW_ARROW_PRELIT);
3170
3171               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3172             }
3173         }
3174
3175       return;
3176     }
3177
3178   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3179     {
3180       /*  Unprelight the old node and arrow  */
3181
3182       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3183                              GTK_RBNODE_IS_PRELIT);
3184
3185       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3186           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3187         {
3188           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3189
3190           gtk_tree_view_draw_arrow (tree_view,
3191                                     tree_view->priv->prelight_tree,
3192                                     tree_view->priv->prelight_node,
3193                                     x,
3194                                     y);
3195         }
3196
3197       _gtk_tree_view_queue_draw_node (tree_view,
3198                                       tree_view->priv->prelight_tree,
3199                                       tree_view->priv->prelight_node,
3200                                       NULL);
3201     }
3202
3203
3204   if (tree_view->priv->hover_expand)
3205     remove_auto_expand_timeout (tree_view);
3206
3207   /*  Set the new prelight values  */
3208   tree_view->priv->prelight_node = node;
3209   tree_view->priv->prelight_tree = tree;
3210
3211   if (!node || !tree)
3212     return;
3213
3214   /*  Prelight the new node and arrow  */
3215
3216   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3217       && coords_are_over_arrow (tree_view, tree, node, x, y))
3218     {
3219       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3220
3221       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3222     }
3223
3224   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3225
3226   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3227
3228   if (tree_view->priv->hover_expand)
3229     {
3230       tree_view->priv->auto_expand_timeout =
3231         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3232     }
3233 }
3234
3235 static void
3236 prelight_or_select (GtkTreeView *tree_view,
3237                     GtkRBTree   *tree,
3238                     GtkRBNode   *node,
3239                     /* these are in bin_window coords */
3240                     gint         x,
3241                     gint         y)
3242 {
3243   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3244
3245   if (tree_view->priv->hover_selection &&
3246       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3247       !(tree_view->priv->edited_column &&
3248         tree_view->priv->edited_column->editable_widget))
3249     {
3250       if (node)
3251         {
3252           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3253             {
3254               GtkTreePath *path;
3255
3256               path = _gtk_tree_view_find_path (tree_view, tree, node);
3257               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3258               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3259                 {
3260                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3261                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3262                 }
3263               gtk_tree_path_free (path);
3264             }
3265         }
3266
3267       else if (mode == GTK_SELECTION_SINGLE)
3268         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3269     }
3270
3271     do_prelight (tree_view, tree, node, x, y);
3272 }
3273
3274 static void
3275 ensure_unprelighted (GtkTreeView *tree_view)
3276 {
3277   do_prelight (tree_view,
3278                NULL, NULL,
3279                -1000, -1000); /* coords not possibly over an arrow */
3280
3281   g_assert (tree_view->priv->prelight_node == NULL);
3282 }
3283
3284
3285
3286
3287 /* Our motion arrow is either a box (in the case of the original spot)
3288  * or an arrow.  It is expander_size wide.
3289  */
3290 /*
3291  * 11111111111111
3292  * 01111111111110
3293  * 00111111111100
3294  * 00011111111000
3295  * 00001111110000
3296  * 00000111100000
3297  * 00000111100000
3298  * 00000111100000
3299  * ~ ~ ~ ~ ~ ~ ~
3300  * 00000111100000
3301  * 00000111100000
3302  * 00000111100000
3303  * 00001111110000
3304  * 00011111111000
3305  * 00111111111100
3306  * 01111111111110
3307  * 11111111111111
3308  */
3309
3310 static void
3311 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3312 {
3313   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3314   GtkWidget *widget = GTK_WIDGET (tree_view);
3315   GdkBitmap *mask = NULL;
3316   gint x;
3317   gint y;
3318   gint width;
3319   gint height;
3320   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3321   GdkWindowAttr attributes;
3322   guint attributes_mask;
3323
3324   if (!reorder ||
3325       reorder->left_column == tree_view->priv->drag_column ||
3326       reorder->right_column == tree_view->priv->drag_column)
3327     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3328   else if (reorder->left_column || reorder->right_column)
3329     {
3330       GdkRectangle visible_rect;
3331       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3332       if (reorder->left_column)
3333         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3334       else
3335         x = reorder->right_column->button->allocation.x;
3336
3337       if (x < visible_rect.x)
3338         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3339       else if (x > visible_rect.x + visible_rect.width)
3340         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3341       else
3342         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3343     }
3344
3345   /* We want to draw the rectangle over the initial location. */
3346   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3347     {
3348       GdkGC *gc;
3349       GdkColor col;
3350
3351       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3352         {
3353           if (tree_view->priv->drag_highlight_window)
3354             {
3355               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3356                                         NULL);
3357               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3358             }
3359
3360           attributes.window_type = GDK_WINDOW_CHILD;
3361           attributes.wclass = GDK_INPUT_OUTPUT;
3362           attributes.x = tree_view->priv->drag_column_x;
3363           attributes.y = 0;
3364           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3365           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3366           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3367           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3368           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3369           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3370           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3371           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3372
3373           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3374           gc = gdk_gc_new (mask);
3375           col.pixel = 1;
3376           gdk_gc_set_foreground (gc, &col);
3377           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3378           col.pixel = 0;
3379           gdk_gc_set_foreground(gc, &col);
3380           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3381           g_object_unref (gc);
3382
3383           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3384                                          mask, 0, 0);
3385           if (mask) g_object_unref (mask);
3386           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3387         }
3388     }
3389   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3390     {
3391       gint i, j = 1;
3392       GdkGC *gc;
3393       GdkColor col;
3394
3395       width = tree_view->priv->expander_size;
3396
3397       /* Get x, y, width, height of arrow */
3398       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3399       if (reorder->left_column)
3400         {
3401           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3402           height = reorder->left_column->button->allocation.height;
3403         }
3404       else
3405         {
3406           x += reorder->right_column->button->allocation.x - width/2;
3407           height = reorder->right_column->button->allocation.height;
3408         }
3409       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3410       height += tree_view->priv->expander_size;
3411
3412       /* Create the new window */
3413       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3414         {
3415           if (tree_view->priv->drag_highlight_window)
3416             {
3417               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3418                                         NULL);
3419               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3420             }
3421
3422           attributes.window_type = GDK_WINDOW_TEMP;
3423           attributes.wclass = GDK_INPUT_OUTPUT;
3424           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3425           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3426           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3427           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3428           attributes.x = x;
3429           attributes.y = y;
3430           attributes.width = width;
3431           attributes.height = height;
3432           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3433                                                                    &attributes, attributes_mask);
3434           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3435
3436           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3437           gc = gdk_gc_new (mask);
3438           col.pixel = 1;
3439           gdk_gc_set_foreground (gc, &col);
3440           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3441
3442           /* Draw the 2 arrows as per above */
3443           col.pixel = 0;
3444           gdk_gc_set_foreground (gc, &col);
3445           for (i = 0; i < width; i ++)
3446             {
3447               if (i == (width/2 - 1))
3448                 continue;
3449               gdk_draw_line (mask, gc, i, j, i, height - j);
3450               if (i < (width/2 - 1))
3451                 j++;
3452               else
3453                 j--;
3454             }
3455           g_object_unref (gc);
3456           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3457                                          mask, 0, 0);
3458           if (mask) g_object_unref (mask);
3459         }
3460
3461       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3462       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3463     }
3464   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3465            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3466     {
3467       gint i, j = 1;
3468       GdkGC *gc;
3469       GdkColor col;
3470
3471       width = tree_view->priv->expander_size;
3472
3473       /* Get x, y, width, height of arrow */
3474       width = width/2; /* remember, the arrow only takes half the available width */
3475       gdk_window_get_origin (widget->window, &x, &y);
3476       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3477         x += widget->allocation.width - width;
3478
3479       if (reorder->left_column)
3480         height = reorder->left_column->button->allocation.height;
3481       else
3482         height = reorder->right_column->button->allocation.height;
3483
3484       y -= tree_view->priv->expander_size;
3485       height += 2*tree_view->priv->expander_size;
3486
3487       /* Create the new window */
3488       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3489           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3490         {
3491           if (tree_view->priv->drag_highlight_window)
3492             {
3493               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3494                                         NULL);
3495               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3496             }
3497
3498           attributes.window_type = GDK_WINDOW_TEMP;
3499           attributes.wclass = GDK_INPUT_OUTPUT;
3500           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3501           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3502           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3503           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3504           attributes.x = x;
3505           attributes.y = y;
3506           attributes.width = width;
3507           attributes.height = height;
3508           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3509           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3510
3511           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3512           gc = gdk_gc_new (mask);
3513           col.pixel = 1;
3514           gdk_gc_set_foreground (gc, &col);
3515           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3516
3517           /* Draw the 2 arrows as per above */
3518           col.pixel = 0;
3519           gdk_gc_set_foreground (gc, &col);
3520           j = tree_view->priv->expander_size;
3521           for (i = 0; i < width; i ++)
3522             {
3523               gint k;
3524               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3525                 k = width - i - 1;
3526               else
3527                 k = i;
3528               gdk_draw_line (mask, gc, k, j, k, height - j);
3529               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3530               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3531               j--;
3532             }
3533           g_object_unref (gc);
3534           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3535                                          mask, 0, 0);
3536           if (mask) g_object_unref (mask);
3537         }
3538
3539       tree_view->priv->drag_column_window_state = arrow_type;
3540       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3541    }
3542   else
3543     {
3544       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3545       gdk_window_hide (tree_view->priv->drag_highlight_window);
3546       return;
3547     }
3548
3549   gdk_window_show (tree_view->priv->drag_highlight_window);
3550   gdk_window_raise (tree_view->priv->drag_highlight_window);
3551 }
3552
3553 static gboolean
3554 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3555                                     GdkEventMotion *event)
3556 {
3557   gint x;
3558   gint new_width;
3559   GtkTreeViewColumn *column;
3560   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3561
3562   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3563
3564   if (event->is_hint || event->window != widget->window)
3565     gtk_widget_get_pointer (widget, &x, NULL);
3566   else
3567     x = event->x;
3568
3569   if (tree_view->priv->hadjustment)
3570     x += tree_view->priv->hadjustment->value;
3571
3572   new_width = gtk_tree_view_new_column_width (tree_view,
3573                                               tree_view->priv->drag_pos, &x);
3574   if (x != tree_view->priv->x_drag &&
3575       (new_width != column->fixed_width))
3576     {
3577       column->use_resized_width = TRUE;
3578       column->resized_width = new_width;
3579       if (column->expand)
3580         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3581       gtk_widget_queue_resize (widget);
3582     }
3583
3584   return FALSE;
3585 }
3586
3587
3588 static void
3589 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3590 {
3591   GtkTreeViewColumnReorder *reorder = NULL;
3592   GList *list;
3593   gint mouse_x;
3594
3595   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3596   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3597     {
3598       reorder = (GtkTreeViewColumnReorder *) list->data;
3599       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3600         break;
3601       reorder = NULL;
3602     }
3603
3604   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3605       return;*/
3606
3607   tree_view->priv->cur_reorder = reorder;
3608   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3609 }
3610
3611 static void
3612 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3613 {
3614   GdkRectangle visible_rect;
3615   gint y;
3616   gint offset;
3617   gfloat value;
3618
3619   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3620   y += tree_view->priv->dy;
3621
3622   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3623
3624   /* see if we are near the edge. */
3625   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3626   if (offset > 0)
3627     {
3628       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3629       if (offset < 0)
3630         return;
3631     }
3632
3633   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3634                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3635   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3636 }
3637
3638 static gboolean
3639 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3640 {
3641   GdkRectangle visible_rect;
3642   gint x;
3643   gint offset;
3644   gfloat value;
3645
3646   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3647
3648   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3649
3650   /* See if we are near the edge. */
3651   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3652   if (offset > 0)
3653     {
3654       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3655       if (offset < 0)
3656         return TRUE;
3657     }
3658   offset = offset/3;
3659
3660   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3661                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3662   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3663
3664   return TRUE;
3665
3666 }
3667
3668 static gboolean
3669 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3670                                   GdkEventMotion *event)
3671 {
3672   GtkTreeView *tree_view = (GtkTreeView *) widget;
3673   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3674   gint x, y;
3675
3676   /* Sanity Check */
3677   if ((column == NULL) ||
3678       (event->window != tree_view->priv->drag_window))
3679     return FALSE;
3680
3681   /* Handle moving the header */
3682   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3683   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3684              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3685   gdk_window_move (tree_view->priv->drag_window, x, y);
3686
3687   /* autoscroll, if needed */
3688   gtk_tree_view_horizontal_autoscroll (tree_view);
3689   /* Update the current reorder position and arrow; */
3690   gtk_tree_view_update_current_reorder (tree_view);
3691
3692   return TRUE;
3693 }
3694
3695 static void
3696 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3697 {
3698   remove_scroll_timeout (tree_view);
3699   gtk_grab_remove (GTK_WIDGET (tree_view));
3700
3701   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3702     {
3703       GtkTreePath *tmp_path;
3704
3705       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3706
3707       /* The anchor path should be set to the start path */
3708       tmp_path = _gtk_tree_view_find_path (tree_view,
3709                                            tree_view->priv->rubber_band_start_tree,
3710                                            tree_view->priv->rubber_band_start_node);
3711
3712       if (tree_view->priv->anchor)
3713         gtk_tree_row_reference_free (tree_view->priv->anchor);
3714
3715       tree_view->priv->anchor =
3716         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3717                                           tree_view->priv->model,
3718                                           tmp_path);
3719
3720       gtk_tree_path_free (tmp_path);
3721
3722       /* ... and the cursor to the end path */
3723       tmp_path = _gtk_tree_view_find_path (tree_view,
3724                                            tree_view->priv->rubber_band_end_tree,
3725                                            tree_view->priv->rubber_band_end_node);
3726       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3727       gtk_tree_path_free (tmp_path);
3728
3729       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3730     }
3731
3732   /* Clear status variables */
3733   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3734   tree_view->priv->rubber_band_shift = 0;
3735   tree_view->priv->rubber_band_ctrl = 0;
3736
3737   tree_view->priv->rubber_band_start_node = NULL;
3738   tree_view->priv->rubber_band_start_tree = NULL;
3739   tree_view->priv->rubber_band_end_node = NULL;
3740   tree_view->priv->rubber_band_end_tree = NULL;
3741 }
3742
3743 static void
3744 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3745                                                  GtkRBTree   *start_tree,
3746                                                  GtkRBNode   *start_node,
3747                                                  GtkRBTree   *end_tree,
3748                                                  GtkRBNode   *end_node,
3749                                                  gboolean     select,
3750                                                  gboolean     skip_start,
3751                                                  gboolean     skip_end)
3752 {
3753   if (start_node == end_node)
3754     return;
3755
3756   /* We skip the first node and jump inside the loop */
3757   if (skip_start)
3758     goto skip_first;
3759
3760   do
3761     {
3762       /* Small optimization by assuming insensitive nodes are never
3763        * selected.
3764        */
3765       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3766         {
3767           GtkTreePath *path;
3768           gboolean selectable;
3769
3770           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3771           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3772           gtk_tree_path_free (path);
3773
3774           if (!selectable)
3775             goto node_not_selectable;
3776         }
3777
3778       if (select)
3779         {
3780           if (tree_view->priv->rubber_band_shift)
3781             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3782           else if (tree_view->priv->rubber_band_ctrl)
3783             {
3784               /* Toggle the selection state */
3785               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3786                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3787               else
3788                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3789             }
3790           else
3791             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3792         }
3793       else
3794         {
3795           /* Mirror the above */
3796           if (tree_view->priv->rubber_band_shift)
3797             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3798           else if (tree_view->priv->rubber_band_ctrl)
3799             {
3800               /* Toggle the selection state */
3801               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3802                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3803               else
3804                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3805             }
3806           else
3807             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3808         }
3809
3810       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3811
3812 node_not_selectable:
3813       if (start_node == end_node)
3814         break;
3815
3816 skip_first:
3817
3818       if (start_node->children)
3819         {
3820           start_tree = start_node->children;
3821           start_node = start_tree->root;
3822           while (start_node->left != start_tree->nil)
3823             start_node = start_node->left;
3824         }
3825       else
3826         {
3827           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3828
3829           if (!start_tree)
3830             /* Ran out of tree */
3831             break;
3832         }
3833
3834       if (skip_end && start_node == end_node)
3835         break;
3836     }
3837   while (TRUE);
3838 }
3839
3840 static void
3841 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3842 {
3843   GtkRBTree *start_tree, *end_tree;
3844   GtkRBNode *start_node, *end_node;
3845
3846   _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);
3847   _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);
3848
3849   /* Handle the start area first */
3850   if (!tree_view->priv->rubber_band_start_node)
3851     {
3852       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3853                                                        start_tree,
3854                                                        start_node,
3855                                                        end_tree,
3856                                                        end_node,
3857                                                        TRUE,
3858                                                        FALSE,
3859                                                        FALSE);
3860     }
3861   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3862            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3863     {
3864       /* New node is above the old one; selection became bigger */
3865       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3866                                                        start_tree,
3867                                                        start_node,
3868                                                        tree_view->priv->rubber_band_start_tree,
3869                                                        tree_view->priv->rubber_band_start_node,
3870                                                        TRUE,
3871                                                        FALSE,
3872                                                        TRUE);
3873     }
3874   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3875            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3876     {
3877       /* New node is below the old one; selection became smaller */
3878       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3879                                                        tree_view->priv->rubber_band_start_tree,
3880                                                        tree_view->priv->rubber_band_start_node,
3881                                                        start_tree,
3882                                                        start_node,
3883                                                        FALSE,
3884                                                        FALSE,
3885                                                        TRUE);
3886     }
3887
3888   tree_view->priv->rubber_band_start_tree = start_tree;
3889   tree_view->priv->rubber_band_start_node = start_node;
3890
3891   /* Next, handle the end area */
3892   if (!tree_view->priv->rubber_band_end_node)
3893     {
3894       /* In the event this happens, start_node was also NULL; this case is
3895        * handled above.
3896        */
3897     }
3898   else if (!end_node)
3899     {
3900       /* Find the last node in the tree */
3901       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3902                                &end_tree, &end_node);
3903
3904       /* Selection reached end of the tree */
3905       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3906                                                        tree_view->priv->rubber_band_end_tree,
3907                                                        tree_view->priv->rubber_band_end_node,
3908                                                        end_tree,
3909                                                        end_node,
3910                                                        TRUE,
3911                                                        TRUE,
3912                                                        FALSE);
3913     }
3914   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3915            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3916     {
3917       /* New node is below the old one; selection became bigger */
3918       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3919                                                        tree_view->priv->rubber_band_end_tree,
3920                                                        tree_view->priv->rubber_band_end_node,
3921                                                        end_tree,
3922                                                        end_node,
3923                                                        TRUE,
3924                                                        TRUE,
3925                                                        FALSE);
3926     }
3927   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3928            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3929     {
3930       /* New node is above the old one; selection became smaller */
3931       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3932                                                        end_tree,
3933                                                        end_node,
3934                                                        tree_view->priv->rubber_band_end_tree,
3935                                                        tree_view->priv->rubber_band_end_node,
3936                                                        FALSE,
3937                                                        TRUE,
3938                                                        FALSE);
3939     }
3940
3941   tree_view->priv->rubber_band_end_tree = end_tree;
3942   tree_view->priv->rubber_band_end_node = end_node;
3943 }
3944
3945 static void
3946 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3947 {
3948   gint x, y;
3949   GdkRectangle old_area;
3950   GdkRectangle new_area;
3951   GdkRectangle common;
3952   GdkRegion *invalid_region;
3953
3954   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3955   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3956   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3957   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3958
3959   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3960
3961   x = MAX (x, 0);
3962   y = MAX (y, 0) + tree_view->priv->dy;
3963
3964   new_area.x = MIN (tree_view->priv->press_start_x, x);
3965   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3966   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3967   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3968
3969   invalid_region = gdk_region_rectangle (&old_area);
3970   gdk_region_union_with_rect (invalid_region, &new_area);
3971
3972   gdk_rectangle_intersect (&old_area, &new_area, &common);
3973   if (common.width > 2 && common.height > 2)
3974     {
3975       GdkRegion *common_region;
3976
3977       /* make sure the border is invalidated */
3978       common.x += 1;
3979       common.y += 1;
3980       common.width -= 2;
3981       common.height -= 2;
3982
3983       common_region = gdk_region_rectangle (&common);
3984
3985       gdk_region_subtract (invalid_region, common_region);
3986       gdk_region_destroy (common_region);
3987     }
3988
3989   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3990
3991   gdk_region_destroy (invalid_region);
3992
3993   tree_view->priv->rubber_band_x = x;
3994   tree_view->priv->rubber_band_y = y;
3995
3996   gtk_tree_view_update_rubber_band_selection (tree_view);
3997 }
3998
3999 static void
4000 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
4001                                 GdkRectangle *area)
4002 {
4003   cairo_t *cr;
4004   GdkRectangle rect;
4005   GdkRectangle rubber_rect;
4006
4007   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4008   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4009   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4010   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4011
4012   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4013     return;
4014
4015   cr = gdk_cairo_create (tree_view->priv->bin_window);
4016   cairo_set_line_width (cr, 1.0);
4017
4018   cairo_set_source_rgba (cr,
4019                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4020                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4021                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4022                          .25);
4023
4024   gdk_cairo_rectangle (cr, &rect);
4025   cairo_clip (cr);
4026   cairo_paint (cr);
4027
4028   cairo_set_source_rgb (cr,
4029                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4030                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4031                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4032
4033   cairo_rectangle (cr,
4034                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4035                    rubber_rect.width - 1, rubber_rect.height - 1);
4036   cairo_stroke (cr);
4037
4038   cairo_destroy (cr);
4039 }
4040
4041 static gboolean
4042 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4043                                  GdkEventMotion *event)
4044 {
4045   GtkTreeView *tree_view;
4046   GtkRBTree *tree;
4047   GtkRBNode *node;
4048   gint new_y;
4049
4050   tree_view = (GtkTreeView *) widget;
4051
4052   if (tree_view->priv->tree == NULL)
4053     return FALSE;
4054
4055   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4056     {
4057       gtk_grab_add (GTK_WIDGET (tree_view));
4058       gtk_tree_view_update_rubber_band (tree_view);
4059
4060       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4061     }
4062   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4063     {
4064       gtk_tree_view_update_rubber_band (tree_view);
4065
4066       add_scroll_timeout (tree_view);
4067     }
4068
4069   /* only check for an initiated drag when a button is pressed */
4070   if (tree_view->priv->pressed_button >= 0
4071       && !tree_view->priv->rubber_band_status)
4072     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4073
4074   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4075   if (new_y < 0)
4076     new_y = 0;
4077
4078   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4079
4080   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4081   if ((tree_view->priv->button_pressed_node != NULL) &&
4082       (tree_view->priv->button_pressed_node != node))
4083     node = NULL;
4084
4085   prelight_or_select (tree_view, tree, node, event->x, event->y);
4086
4087   return TRUE;
4088 }
4089
4090 static gboolean
4091 gtk_tree_view_motion (GtkWidget      *widget,
4092                       GdkEventMotion *event)
4093 {
4094   GtkTreeView *tree_view;
4095
4096   tree_view = (GtkTreeView *) widget;
4097
4098   /* Resizing a column */
4099   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4100     return gtk_tree_view_motion_resize_column (widget, event);
4101
4102   /* Drag column */
4103   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4104     return gtk_tree_view_motion_drag_column (widget, event);
4105
4106   /* Sanity check it */
4107   if (event->window == tree_view->priv->bin_window)
4108     return gtk_tree_view_motion_bin_window (widget, event);
4109
4110   return FALSE;
4111 }
4112
4113 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4114  * the tree is empty.
4115  */
4116 static void
4117 invalidate_empty_focus (GtkTreeView *tree_view)
4118 {
4119   GdkRectangle area;
4120
4121   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4122     return;
4123
4124   area.x = 0;
4125   area.y = 0;
4126   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4127   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4128 }
4129
4130 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4131  * is empty.
4132  */
4133 static void
4134 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4135 {
4136   gint w, h;
4137
4138   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4139     return;
4140
4141   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4142
4143   w -= 2;
4144   h -= 2;
4145
4146   if (w > 0 && h > 0)
4147     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4148                      tree_view->priv->bin_window,
4149                      GTK_WIDGET_STATE (tree_view),
4150                      clip_area,
4151                      GTK_WIDGET (tree_view),
4152                      NULL,
4153                      1, 1, w, h);
4154 }
4155
4156 static void
4157 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4158                                GdkEventExpose *event,
4159                                gint            n_visible_columns)
4160 {
4161   GList *list = tree_view->priv->columns;
4162   gint i = 0;
4163   gint current_x = 0;
4164
4165   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4166       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4167     return;
4168
4169   /* Only draw the lines for visible rows and columns */
4170   for (list = tree_view->priv->columns; list; list = list->next, i++)
4171     {
4172       GtkTreeViewColumn *column = list->data;
4173
4174       /* We don't want a line for the last column */
4175       if (i == n_visible_columns - 1)
4176         break;
4177
4178       if (! column->visible)
4179         continue;
4180
4181       current_x += column->width;
4182
4183       gdk_draw_line (event->window,
4184                      tree_view->priv->grid_line_gc,
4185                      current_x - 1, 0,
4186                      current_x - 1, tree_view->priv->height);
4187     }
4188 }
4189
4190 /* Warning: Very scary function.
4191  * Modify at your own risk
4192  *
4193  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4194  * FIXME: It's not...
4195  */
4196 static gboolean
4197 gtk_tree_view_bin_expose (GtkWidget      *widget,
4198                           GdkEventExpose *event)
4199 {
4200   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4201   GtkTreePath *path;
4202   GtkRBTree *tree;
4203   GList *list;
4204   GtkRBNode *node;
4205   GtkRBNode *cursor = NULL;
4206   GtkRBTree *cursor_tree = NULL;
4207   GtkRBNode *drag_highlight = NULL;
4208   GtkRBTree *drag_highlight_tree = NULL;
4209   GtkTreeIter iter;
4210   gint new_y;
4211   gint y_offset, cell_offset;
4212   gint max_height;
4213   gint depth;
4214   GdkRectangle background_area;
4215   GdkRectangle cell_area;
4216   guint flags;
4217   gint highlight_x;
4218   gint expander_cell_width;
4219   gint bin_window_width;
4220   gint bin_window_height;
4221   GtkTreePath *cursor_path;
4222   GtkTreePath *drag_dest_path;
4223   GList *first_column, *last_column;
4224   gint vertical_separator;
4225   gint horizontal_separator;
4226   gint focus_line_width;
4227   gboolean allow_rules;
4228   gboolean has_special_cell;
4229   gboolean rtl;
4230   gint n_visible_columns;
4231   gint pointer_x, pointer_y;
4232   gint grid_line_width;
4233   gboolean got_pointer = FALSE;
4234   gboolean row_ending_details;
4235   gboolean draw_vgrid_lines, draw_hgrid_lines;
4236
4237   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4238
4239   gtk_widget_style_get (widget,
4240                         "horizontal-separator", &horizontal_separator,
4241                         "vertical-separator", &vertical_separator,
4242                         "allow-rules", &allow_rules,
4243                         "focus-line-width", &focus_line_width,
4244                         "row-ending-details", &row_ending_details,
4245                         NULL);
4246
4247   if (tree_view->priv->tree == NULL)
4248     {
4249       draw_empty_focus (tree_view, &event->area);
4250       return TRUE;
4251     }
4252
4253   /* clip event->area to the visible area */
4254   if (event->area.height < 0)
4255     return TRUE;
4256
4257   validate_visible_area (tree_view);
4258
4259   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4260
4261   if (new_y < 0)
4262     new_y = 0;
4263   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4264   gdk_drawable_get_size (tree_view->priv->bin_window,
4265                          &bin_window_width, &bin_window_height);
4266
4267   if (tree_view->priv->height < bin_window_height)
4268     {
4269       gtk_paint_flat_box (widget->style,
4270                           event->window,
4271                           widget->state,
4272                           GTK_SHADOW_NONE,
4273                           &event->area,
4274                           widget,
4275                           "cell_even",
4276                           0, tree_view->priv->height,
4277                           bin_window_width,
4278                           bin_window_height - tree_view->priv->height);
4279     }
4280
4281   if (node == NULL)
4282     return TRUE;
4283
4284   /* find the path for the node */
4285   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4286                                    tree,
4287                                    node);
4288   gtk_tree_model_get_iter (tree_view->priv->model,
4289                            &iter,
4290                            path);
4291   depth = gtk_tree_path_get_depth (path);
4292   gtk_tree_path_free (path);
4293
4294   cursor_path = NULL;
4295   drag_dest_path = NULL;
4296
4297   if (tree_view->priv->cursor)
4298     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4299
4300   if (cursor_path)
4301     _gtk_tree_view_find_node (tree_view, cursor_path,
4302                               &cursor_tree, &cursor);
4303
4304   if (tree_view->priv->drag_dest_row)
4305     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4306
4307   if (drag_dest_path)
4308     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4309                               &drag_highlight_tree, &drag_highlight);
4310
4311   draw_vgrid_lines =
4312     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4313     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4314   draw_hgrid_lines =
4315     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4316     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4317
4318   if (draw_vgrid_lines || draw_hgrid_lines)
4319     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4320
4321   n_visible_columns = 0;
4322   for (list = tree_view->priv->columns; list; list = list->next)
4323     {
4324       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4325         continue;
4326       n_visible_columns ++;
4327     }
4328
4329   /* Find the last column */
4330   for (last_column = g_list_last (tree_view->priv->columns);
4331        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4332        last_column = last_column->prev)
4333     ;
4334
4335   /* and the first */
4336   for (first_column = g_list_first (tree_view->priv->columns);
4337        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4338        first_column = first_column->next)
4339     ;
4340
4341   /* Actually process the expose event.  To do this, we want to
4342    * start at the first node of the event, and walk the tree in
4343    * order, drawing each successive node.
4344    */
4345
4346   do
4347     {
4348       gboolean parity;
4349       gboolean is_separator = FALSE;
4350       gboolean is_first = FALSE;
4351       gboolean is_last = FALSE;
4352
4353       is_separator = row_is_separator (tree_view, &iter, NULL);
4354
4355       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4356
4357       cell_offset = 0;
4358       highlight_x = 0; /* should match x coord of first cell */
4359       expander_cell_width = 0;
4360
4361       background_area.y = y_offset + event->area.y;
4362       background_area.height = max_height;
4363
4364       flags = 0;
4365
4366       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4367         flags |= GTK_CELL_RENDERER_PRELIT;
4368
4369       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4370         flags |= GTK_CELL_RENDERER_SELECTED;
4371
4372       parity = _gtk_rbtree_node_find_parity (tree, node);
4373
4374       /* we *need* to set cell data on all cells before the call
4375        * to _has_special_cell, else _has_special_cell() does not
4376        * return a correct value.
4377        */
4378       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4379            list;
4380            list = (rtl ? list->prev : list->next))
4381         {
4382           GtkTreeViewColumn *column = list->data;
4383           gtk_tree_view_column_cell_set_cell_data (column,
4384                                                    tree_view->priv->model,
4385                                                    &iter,
4386                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4387                                                    node->children?TRUE:FALSE);
4388         }
4389
4390       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4391
4392       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4393            list;
4394            list = (rtl ? list->prev : list->next))
4395         {
4396           GtkTreeViewColumn *column = list->data;
4397           const gchar *detail = NULL;
4398           GtkStateType state;
4399
4400           if (!column->visible)
4401             continue;
4402
4403           if (cell_offset > event->area.x + event->area.width ||
4404               cell_offset + column->width < event->area.x)
4405             {
4406               cell_offset += column->width;
4407               continue;
4408             }
4409
4410           if (column->show_sort_indicator)
4411             flags |= GTK_CELL_RENDERER_SORTED;
4412           else
4413             flags &= ~GTK_CELL_RENDERER_SORTED;
4414
4415           if (cursor == node)
4416             flags |= GTK_CELL_RENDERER_FOCUSED;
4417           else
4418             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4419
4420           background_area.x = cell_offset;
4421           background_area.width = column->width;
4422
4423           cell_area = background_area;
4424           cell_area.y += vertical_separator / 2;
4425           cell_area.x += horizontal_separator / 2;
4426           cell_area.height -= vertical_separator;
4427           cell_area.width -= horizontal_separator;
4428
4429           if (draw_vgrid_lines)
4430             {
4431               if (list == first_column)
4432                 {
4433                   cell_area.width -= grid_line_width / 2;
4434                 }
4435               else if (list == last_column)
4436                 {
4437                   cell_area.x += grid_line_width / 2;
4438                   cell_area.width -= grid_line_width / 2;
4439                 }
4440               else
4441                 {
4442                   cell_area.x += grid_line_width / 2;
4443                   cell_area.width -= grid_line_width;
4444                 }
4445             }
4446
4447           if (draw_hgrid_lines)
4448             {
4449               cell_area.y += grid_line_width / 2;
4450               cell_area.height -= grid_line_width;
4451             }
4452
4453           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4454             {
4455               cell_offset += column->width;
4456               continue;
4457             }
4458
4459           gtk_tree_view_column_cell_set_cell_data (column,
4460                                                    tree_view->priv->model,
4461                                                    &iter,
4462                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4463                                                    node->children?TRUE:FALSE);
4464
4465           /* Select the detail for drawing the cell.  relevant
4466            * factors are parity, sortedness, and whether to
4467            * display rules.
4468            */
4469           if (allow_rules && tree_view->priv->has_rules)
4470             {
4471               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4472                   n_visible_columns >= 3)
4473                 {
4474                   if (parity)
4475                     detail = "cell_odd_ruled_sorted";
4476                   else
4477                     detail = "cell_even_ruled_sorted";
4478                 }
4479               else
4480                 {
4481                   if (parity)
4482                     detail = "cell_odd_ruled";
4483                   else
4484                     detail = "cell_even_ruled";
4485                 }
4486             }
4487           else
4488             {
4489               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4490                   n_visible_columns >= 3)
4491                 {
4492                   if (parity)
4493                     detail = "cell_odd_sorted";
4494                   else
4495                     detail = "cell_even_sorted";
4496                 }
4497               else
4498                 {
4499                   if (parity)
4500                     detail = "cell_odd";
4501                   else
4502                     detail = "cell_even";
4503                 }
4504             }
4505
4506           g_assert (detail);
4507
4508           if (widget->state == GTK_STATE_INSENSITIVE)
4509             state = GTK_STATE_INSENSITIVE;
4510           else if (flags & GTK_CELL_RENDERER_SELECTED)
4511             state = GTK_STATE_SELECTED;
4512           else
4513             state = GTK_STATE_NORMAL;
4514
4515           /* Draw background */
4516           if (row_ending_details)
4517             {
4518               char new_detail[128];
4519
4520               is_first = (rtl ? !list->next : !list->prev);
4521               is_last = (rtl ? !list->prev : !list->next);
4522
4523               /* (I don't like the snprintfs either, but couldn't find a
4524                * less messy way).
4525                */
4526               if (is_first && is_last)
4527                 g_snprintf (new_detail, 127, "%s", detail);
4528               else if (is_first)
4529                 g_snprintf (new_detail, 127, "%s_start", detail);
4530               else if (is_last)
4531                 g_snprintf (new_detail, 127, "%s_end", detail);
4532               else
4533                 g_snprintf (new_detail, 128, "%s_middle", detail);
4534
4535               gtk_paint_flat_box (widget->style,
4536                                   event->window,
4537                                   state,
4538                                   GTK_SHADOW_NONE,
4539                                   &event->area,
4540                                   widget,
4541                                   new_detail,
4542                                   background_area.x,
4543                                   background_area.y,
4544                                   background_area.width,
4545                                   background_area.height);
4546             }
4547           else
4548             {
4549               gtk_paint_flat_box (widget->style,
4550                                   event->window,
4551                                   state,
4552                                   GTK_SHADOW_NONE,
4553                                   &event->area,
4554                                   widget,
4555                                   detail,
4556                                   background_area.x,
4557                                   background_area.y,
4558                                   background_area.width,
4559                                   background_area.height);
4560             }
4561
4562           if (draw_hgrid_lines)
4563             {
4564               if (background_area.y > 0)
4565                 gdk_draw_line (event->window,
4566                                tree_view->priv->grid_line_gc,
4567                                background_area.x, background_area.y,
4568                                background_area.x + background_area.width,
4569                                background_area.y);
4570
4571               if (y_offset + max_height >= event->area.height)
4572                 gdk_draw_line (event->window,
4573                                tree_view->priv->grid_line_gc,
4574                                background_area.x, background_area.y + max_height,
4575                                background_area.x + background_area.width,
4576                                background_area.y + max_height);
4577             }
4578
4579           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4580               tree_view->priv->tree_lines_enabled)
4581             {
4582               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4583                   && depth > 1)
4584                 {
4585                   gdk_draw_line (event->window,
4586                                  tree_view->priv->tree_line_gc,
4587                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4588                                  background_area.y + background_area.height / 2,
4589                                  background_area.x + tree_view->priv->expander_size * (depth - 1.1),
4590                                  background_area.y + background_area.height / 2);
4591                 }
4592               else if (depth > 1)
4593                 {
4594                   gdk_draw_line (event->window,
4595                                  tree_view->priv->tree_line_gc,
4596                                  background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4597                                  background_area.y + background_area.height / 2,
4598                                  background_area.x + tree_view->priv->expander_size * (depth - 0.5),
4599                                  background_area.y + background_area.height / 2);
4600                 }
4601
4602               if (depth > 1)
4603                 {
4604                   gint i;
4605                   GtkRBNode *tmp_node;
4606                   GtkRBTree *tmp_tree;
4607
4608                   if (!_gtk_rbtree_next (tree, node))
4609                     gdk_draw_line (event->window,
4610                                    tree_view->priv->tree_line_gc,
4611                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4612                                    background_area.y,
4613                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4614                                    background_area.y + background_area.height / 2);
4615                   else
4616                     gdk_draw_line (event->window,
4617                                    tree_view->priv->tree_line_gc,
4618                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4619                                    background_area.y,
4620                                    background_area.x + tree_view->priv->expander_size * (depth - 1.5),
4621                                    background_area.y + background_area.height);
4622
4623                   tmp_node = tree->parent_node;
4624                   tmp_tree = tree->parent_tree;
4625
4626                   for (i = depth - 2; i > 0; i--)
4627                     {
4628                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4629                         gdk_draw_line (event->window,
4630                                        tree_view->priv->tree_line_gc,
4631                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4632                                        background_area.y,
4633                                        background_area.x + tree_view->priv->expander_size * (i - 0.5),
4634                                        background_area.y + background_area.height);
4635
4636                       tmp_node = tmp_tree->parent_node;
4637                       tmp_tree = tmp_tree->parent_tree;
4638                     }
4639                 }
4640             }
4641
4642           if (gtk_tree_view_is_expander_column (tree_view, column))
4643             {
4644               if (!rtl)
4645                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4646               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4647
4648               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4649                 {
4650                   if (!rtl)
4651                     cell_area.x += depth * tree_view->priv->expander_size;
4652                   cell_area.width -= depth * tree_view->priv->expander_size;
4653                 }
4654
4655               /* If we have an expander column, the highlight underline
4656                * starts with that column, so that it indicates which
4657                * level of the tree we're dropping at.
4658                */
4659               highlight_x = cell_area.x;
4660               expander_cell_width = cell_area.width;
4661
4662               if (is_separator)
4663                 gtk_paint_hline (widget->style,
4664                                  event->window,
4665                                  state,
4666                                  &cell_area,
4667                                  widget,
4668                                  NULL,
4669                                  cell_area.x,
4670                                  cell_area.x + cell_area.width,
4671                                  cell_area.y + cell_area.height / 2);
4672               else
4673                 _gtk_tree_view_column_cell_render (column,
4674                                                    event->window,
4675                                                    &background_area,
4676                                                    &cell_area,
4677                                                    &event->area,
4678                                                    flags);
4679               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4680                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4681                 {
4682                   if (!got_pointer)
4683                     {
4684                       gdk_window_get_pointer (tree_view->priv->bin_window,
4685                                               &pointer_x, &pointer_y, NULL);
4686                       got_pointer = TRUE;
4687                     }
4688
4689                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4690                                             tree,
4691                                             node,
4692                                             pointer_x, pointer_y);
4693                 }
4694             }
4695           else
4696             {
4697               if (is_separator)
4698                 gtk_paint_hline (widget->style,
4699                                  event->window,
4700                                  state,
4701                                  &cell_area,
4702                                  widget,
4703                                  NULL,
4704                                  cell_area.x,
4705                                  cell_area.x + cell_area.width,
4706                                  cell_area.y + cell_area.height / 2);
4707               else
4708                 _gtk_tree_view_column_cell_render (column,
4709                                                    event->window,
4710                                                    &background_area,
4711                                                    &cell_area,
4712                                                    &event->area,
4713                                                    flags);
4714             }
4715           if (node == cursor && has_special_cell &&
4716               ((column == tree_view->priv->focus_column &&
4717                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4718                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4719                (column == tree_view->priv->edited_column)))
4720             {
4721               _gtk_tree_view_column_cell_draw_focus (column,
4722                                                      event->window,
4723                                                      &background_area,
4724                                                      &cell_area,
4725                                                      &event->area,
4726                                                      flags);
4727             }
4728           cell_offset += column->width;
4729         }
4730
4731       if (node == drag_highlight)
4732         {
4733           /* Draw indicator for the drop
4734            */
4735           gint highlight_y = -1;
4736           GtkRBTree *tree = NULL;
4737           GtkRBNode *node = NULL;
4738           gint width;
4739
4740           switch (tree_view->priv->drag_dest_pos)
4741             {
4742             case GTK_TREE_VIEW_DROP_BEFORE:
4743               highlight_y = background_area.y - 1;
4744               if (highlight_y < 0)
4745                       highlight_y = 0;
4746               break;
4747
4748             case GTK_TREE_VIEW_DROP_AFTER:
4749               highlight_y = background_area.y + background_area.height - 1;
4750               break;
4751
4752             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4753             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4754               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4755
4756               if (tree == NULL)
4757                 break;
4758               gdk_drawable_get_size (tree_view->priv->bin_window,
4759                                      &width, NULL);
4760
4761               if (row_ending_details)
4762                 gtk_paint_focus (widget->style,
4763                                  tree_view->priv->bin_window,
4764                                  GTK_WIDGET_STATE (widget),
4765                                  &event->area,
4766                                  widget,
4767                                  (is_first
4768                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4769                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4770                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4771                                  - focus_line_width / 2,
4772                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4773                                - focus_line_width + 1);
4774               else
4775                 gtk_paint_focus (widget->style,
4776                                  tree_view->priv->bin_window,
4777                                  GTK_WIDGET_STATE (widget),
4778                                  &event->area,
4779                                  widget,
4780                                  "treeview-drop-indicator",
4781                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4782                                  - focus_line_width / 2,
4783                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4784                                  - focus_line_width + 1);
4785               break;
4786             }
4787
4788           if (highlight_y >= 0)
4789             {
4790               gdk_draw_line (event->window,
4791                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4792                              rtl ? highlight_x + expander_cell_width : highlight_x,
4793                              highlight_y,
4794                              rtl ? 0 : bin_window_width,
4795                              highlight_y);
4796             }
4797         }
4798
4799       /* draw the big row-spanning focus rectangle, if needed */
4800       if (!has_special_cell && node == cursor &&
4801           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4802           GTK_WIDGET_HAS_FOCUS (widget))
4803         {
4804           gint tmp_y, tmp_height;
4805           gint width;
4806           GtkStateType focus_rect_state;
4807
4808           focus_rect_state =
4809             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4810             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4811              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4812               GTK_STATE_NORMAL));
4813
4814           gdk_drawable_get_size (tree_view->priv->bin_window,
4815                                  &width, NULL);
4816
4817           if (draw_hgrid_lines)
4818             {
4819               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4820               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4821             }
4822           else
4823             {
4824               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4825               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4826             }
4827
4828           if (row_ending_details)
4829             gtk_paint_focus (widget->style,
4830                              tree_view->priv->bin_window,
4831                              focus_rect_state,
4832                              &event->area,
4833                              widget,
4834                              (is_first
4835                               ? (is_last ? "treeview" : "treeview-left" )
4836                               : (is_last ? "treeview-right" : "treeview-middle" )),
4837                              0, tmp_y,
4838                              width, tmp_height);
4839           else
4840             gtk_paint_focus (widget->style,
4841                              tree_view->priv->bin_window,
4842                              focus_rect_state,
4843                              &event->area,
4844                              widget,
4845                              "treeview",
4846                              0, tmp_y,
4847                              width, tmp_height);
4848         }
4849
4850       y_offset += max_height;
4851       if (node->children)
4852         {
4853           GtkTreeIter parent = iter;
4854           gboolean has_child;
4855
4856           tree = node->children;
4857           node = tree->root;
4858
4859           g_assert (node != tree->nil);
4860
4861           while (node->left != tree->nil)
4862             node = node->left;
4863           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4864                                                     &iter,
4865                                                     &parent);
4866           depth++;
4867
4868           /* Sanity Check! */
4869           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4870         }
4871       else
4872         {
4873           gboolean done = FALSE;
4874
4875           do
4876             {
4877               node = _gtk_rbtree_next (tree, node);
4878               if (node != NULL)
4879                 {
4880                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4881                   done = TRUE;
4882
4883                   /* Sanity Check! */
4884                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4885                 }
4886               else
4887                 {
4888                   GtkTreeIter parent_iter = iter;
4889                   gboolean has_parent;
4890
4891                   node = tree->parent_node;
4892                   tree = tree->parent_tree;
4893                   if (tree == NULL)
4894                     /* we should go to done to free some memory */
4895                     goto done;
4896                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4897                                                            &iter,
4898                                                            &parent_iter);
4899                   depth--;
4900
4901                   /* Sanity check */
4902                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4903                 }
4904             }
4905           while (!done);
4906         }
4907     }
4908   while (y_offset < event->area.height);
4909
4910 done:
4911   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4912
4913  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4914    {
4915      GdkRectangle *rectangles;
4916      gint n_rectangles;
4917
4918      gdk_region_get_rectangles (event->region,
4919                                 &rectangles,
4920                                 &n_rectangles);
4921
4922      while (n_rectangles--)
4923        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4924
4925      g_free (rectangles);
4926    }
4927
4928   if (cursor_path)
4929     gtk_tree_path_free (cursor_path);
4930
4931   if (drag_dest_path)
4932     gtk_tree_path_free (drag_dest_path);
4933
4934   return FALSE;
4935 }
4936
4937 static gboolean
4938 gtk_tree_view_expose (GtkWidget      *widget,
4939                       GdkEventExpose *event)
4940 {
4941   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4942
4943   if (event->window == tree_view->priv->bin_window)
4944     {
4945       gboolean retval;
4946       GList *tmp_list;
4947
4948       retval = gtk_tree_view_bin_expose (widget, event);
4949
4950       /* We can't just chain up to Container::expose as it will try to send the
4951        * event to the headers, so we handle propagating it to our children
4952        * (eg. widgets being edited) ourselves.
4953        */
4954       tmp_list = tree_view->priv->children;
4955       while (tmp_list)
4956         {
4957           GtkTreeViewChild *child = tmp_list->data;
4958           tmp_list = tmp_list->next;
4959
4960           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4961         }
4962
4963       return retval;
4964     }
4965
4966   else if (event->window == tree_view->priv->header_window)
4967     {
4968       GList *list;
4969
4970       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4971         {
4972           GtkTreeViewColumn *column = list->data;
4973
4974           if (column == tree_view->priv->drag_column)
4975             continue;
4976
4977           if (column->visible)
4978             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4979                                             column->button,
4980                                             event);
4981         }
4982     }
4983   else if (event->window == tree_view->priv->drag_window)
4984     {
4985       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4986                                       tree_view->priv->drag_column->button,
4987                                       event);
4988     }
4989   return TRUE;
4990 }
4991
4992 enum
4993 {
4994   DROP_HOME,
4995   DROP_RIGHT,
4996   DROP_LEFT,
4997   DROP_END
4998 };
4999
5000 /* returns 0x1 when no column has been found -- yes it's hackish */
5001 static GtkTreeViewColumn *
5002 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5003                                GtkTreeViewColumn *column,
5004                                gint               drop_position)
5005 {
5006   GtkTreeViewColumn *left_column = NULL;
5007   GtkTreeViewColumn *cur_column = NULL;
5008   GList *tmp_list;
5009
5010   if (!column->reorderable)
5011     return (GtkTreeViewColumn *)0x1;
5012
5013   switch (drop_position)
5014     {
5015       case DROP_HOME:
5016         /* find first column where we can drop */
5017         tmp_list = tree_view->priv->columns;
5018         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5019           return (GtkTreeViewColumn *)0x1;
5020
5021         while (tmp_list)
5022           {
5023             g_assert (tmp_list);
5024
5025             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5026             tmp_list = tmp_list->next;
5027
5028             if (left_column && left_column->visible == FALSE)
5029               continue;
5030
5031             if (!tree_view->priv->column_drop_func)
5032               return left_column;
5033
5034             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5035               {
5036                 left_column = cur_column;
5037                 continue;
5038               }
5039
5040             return left_column;
5041           }
5042
5043         if (!tree_view->priv->column_drop_func)
5044           return left_column;
5045
5046         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5047           return left_column;
5048         else
5049           return (GtkTreeViewColumn *)0x1;
5050         break;
5051
5052       case DROP_RIGHT:
5053         /* find first column after column where we can drop */
5054         tmp_list = tree_view->priv->columns;
5055
5056         for (; tmp_list; tmp_list = tmp_list->next)
5057           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5058             break;
5059
5060         if (!tmp_list || !tmp_list->next)
5061           return (GtkTreeViewColumn *)0x1;
5062
5063         tmp_list = tmp_list->next;
5064         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5065         tmp_list = tmp_list->next;
5066
5067         while (tmp_list)
5068           {
5069             g_assert (tmp_list);
5070
5071             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5072             tmp_list = tmp_list->next;
5073
5074             if (left_column && left_column->visible == FALSE)
5075               {
5076                 left_column = cur_column;
5077                 if (tmp_list)
5078                   tmp_list = tmp_list->next;
5079                 continue;
5080               }
5081
5082             if (!tree_view->priv->column_drop_func)
5083               return left_column;
5084
5085             if (!(*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5086               {
5087                 left_column = cur_column;
5088                 continue;
5089               }
5090
5091             return left_column;
5092           }
5093
5094         if (!tree_view->priv->column_drop_func)
5095           return left_column;
5096
5097         if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5098           return left_column;
5099         else
5100           return (GtkTreeViewColumn *)0x1;
5101         break;
5102
5103       case DROP_LEFT:
5104         /* find first column before column where we can drop */
5105         tmp_list = tree_view->priv->columns;
5106
5107         for (; tmp_list; tmp_list = tmp_list->next)
5108           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5109             break;
5110
5111         if (!tmp_list || !tmp_list->prev)
5112           return (GtkTreeViewColumn *)0x1;
5113
5114         tmp_list = tmp_list->prev;
5115         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5116         tmp_list = tmp_list->prev;
5117
5118         while (tmp_list)
5119           {
5120             g_assert (tmp_list);
5121
5122             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5123
5124             if (left_column && !left_column->visible)
5125               {
5126                 /*if (!tmp_list->prev)
5127                   return (GtkTreeViewColumn *)0x1;
5128                   */
5129 /*
5130                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5131                 tmp_list = tmp_list->prev->prev;
5132                 continue;*/
5133
5134                 cur_column = left_column;
5135                 if (tmp_list)
5136                   tmp_list = tmp_list->prev;
5137                 continue;
5138               }
5139
5140             if (!tree_view->priv->column_drop_func)
5141               return left_column;
5142
5143             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5144               return left_column;
5145
5146             cur_column = left_column;
5147             tmp_list = tmp_list->prev;
5148           }
5149
5150         if (!tree_view->priv->column_drop_func)
5151           return NULL;
5152
5153         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5154           return NULL;
5155         else
5156           return (GtkTreeViewColumn *)0x1;
5157         break;
5158
5159       case DROP_END:
5160         /* same as DROP_HOME case, but doing it backwards */
5161         tmp_list = g_list_last (tree_view->priv->columns);
5162         cur_column = NULL;
5163
5164         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5165           return (GtkTreeViewColumn *)0x1;
5166
5167         while (tmp_list)
5168           {
5169             g_assert (tmp_list);
5170
5171             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5172
5173             if (left_column && !left_column->visible)
5174               {
5175                 cur_column = left_column;
5176                 tmp_list = tmp_list->prev;
5177               }
5178
5179             if (!tree_view->priv->column_drop_func)
5180               return left_column;
5181
5182             if ((*tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5183               return left_column;
5184
5185             cur_column = left_column;
5186             tmp_list = tmp_list->prev;
5187           }
5188
5189         if (!tree_view->priv->column_drop_func)
5190           return NULL;
5191
5192         if ((*tree_view->priv->column_drop_func) (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5193           return NULL;
5194         else
5195           return (GtkTreeViewColumn *)0x1;
5196         break;
5197     }
5198
5199   return (GtkTreeViewColumn *)0x1;
5200 }
5201
5202 static gboolean
5203 gtk_tree_view_key_press (GtkWidget   *widget,
5204                          GdkEventKey *event)
5205 {
5206   GtkTreeView *tree_view = (GtkTreeView *) widget;
5207
5208   if (tree_view->priv->rubber_band_status)
5209     {
5210       if (event->keyval == GDK_Escape)
5211         gtk_tree_view_stop_rubber_band (tree_view);
5212
5213       return TRUE;
5214     }
5215
5216   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5217     {
5218       if (event->keyval == GDK_Escape)
5219         {
5220           tree_view->priv->cur_reorder = NULL;
5221           gtk_tree_view_button_release_drag_column (widget, NULL);
5222         }
5223       return TRUE;
5224     }
5225
5226   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5227     {
5228       GList *focus_column;
5229       gboolean rtl;
5230
5231       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5232
5233       for (focus_column = tree_view->priv->columns;
5234            focus_column;
5235            focus_column = focus_column->next)
5236         {
5237           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5238
5239           if (GTK_WIDGET_HAS_FOCUS (column->button))
5240             break;
5241         }
5242
5243       if (focus_column &&
5244           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5245           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5246            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5247         {
5248           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5249
5250           if (!column->resizable)
5251             {
5252               gtk_widget_error_bell (widget);
5253               return TRUE;
5254             }
5255
5256           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5257               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5258             {
5259               gint old_width = column->resized_width;
5260
5261               column->resized_width = MAX (column->resized_width,
5262                                            column->width);
5263               column->resized_width -= 2;
5264               if (column->resized_width < 0)
5265                 column->resized_width = 0;
5266
5267               if (column->min_width == -1)
5268                 column->resized_width = MAX (column->button->requisition.width,
5269                                              column->resized_width);
5270               else
5271                 column->resized_width = MAX (column->min_width,
5272                                              column->resized_width);
5273
5274               if (column->max_width != -1)
5275                 column->resized_width = MIN (column->resized_width,
5276                                              column->max_width);
5277
5278               column->use_resized_width = TRUE;
5279
5280               if (column->resized_width != old_width)
5281                 gtk_widget_queue_resize (widget);
5282               else
5283                 gtk_widget_error_bell (widget);
5284             }
5285           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5286                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5287             {
5288               gint old_width = column->resized_width;
5289
5290               column->resized_width = MAX (column->resized_width,
5291                                            column->width);
5292               column->resized_width += 2;
5293
5294               if (column->max_width != -1)
5295                 column->resized_width = MIN (column->resized_width,
5296                                              column->max_width);
5297
5298               column->use_resized_width = TRUE;
5299
5300               if (column->resized_width != old_width)
5301                 gtk_widget_queue_resize (widget);
5302               else
5303                 gtk_widget_error_bell (widget);
5304             }
5305
5306           return TRUE;
5307         }
5308
5309       if (focus_column &&
5310           (event->state & GDK_MOD1_MASK) &&
5311           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5312            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5313            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5314            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5315         {
5316           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5317
5318           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5319               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5320             {
5321               GtkTreeViewColumn *col;
5322               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5323               if (col != (GtkTreeViewColumn *)0x1)
5324                 gtk_tree_view_move_column_after (tree_view, column, col);
5325               else
5326                 gtk_widget_error_bell (widget);
5327             }
5328           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5329                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5330             {
5331               GtkTreeViewColumn *col;
5332               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5333               if (col != (GtkTreeViewColumn *)0x1)
5334                 gtk_tree_view_move_column_after (tree_view, column, col);
5335               else
5336                 gtk_widget_error_bell (widget);
5337             }
5338           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5339             {
5340               GtkTreeViewColumn *col;
5341               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5342               if (col != (GtkTreeViewColumn *)0x1)
5343                 gtk_tree_view_move_column_after (tree_view, column, col);
5344               else
5345                 gtk_widget_error_bell (widget);
5346             }
5347           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5348             {
5349               GtkTreeViewColumn *col;
5350               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5351               if (col != (GtkTreeViewColumn *)0x1)
5352                 gtk_tree_view_move_column_after (tree_view, column, col);
5353               else
5354                 gtk_widget_error_bell (widget);
5355             }
5356
5357           return TRUE;
5358         }
5359     }
5360
5361   /* Chain up to the parent class.  It handles the keybindings. */
5362   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5363     return TRUE;
5364
5365   /* We pass the event to the search_entry.  If its text changes, then we start
5366    * the typeahead find capabilities. */
5367   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5368       && tree_view->priv->enable_search
5369       && !tree_view->priv->search_custom_entry_set)
5370     {
5371       GdkEvent *new_event;
5372       char *old_text;
5373       const char *new_text;
5374       gboolean retval;
5375       GdkScreen *screen;
5376       gboolean text_modified;
5377       gulong popup_menu_id;
5378
5379       gtk_tree_view_ensure_interactive_directory (tree_view);
5380
5381       /* Make a copy of the current text */
5382       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5383       new_event = gdk_event_copy ((GdkEvent *) event);
5384       g_object_unref (((GdkEventKey *) new_event)->window);
5385       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5386       gtk_widget_realize (tree_view->priv->search_window);
5387
5388       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5389                                         "popup_menu", G_CALLBACK (gtk_true), NULL);
5390
5391       /* Move the entry off screen */
5392       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5393       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5394                        gdk_screen_get_width (screen) + 1,
5395                        gdk_screen_get_height (screen) + 1);
5396       gtk_widget_show (tree_view->priv->search_window);
5397
5398       /* Send the event to the window.  If the preedit_changed signal is emitted
5399        * during this event, we will set priv->imcontext_changed  */
5400       tree_view->priv->imcontext_changed = FALSE;
5401       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5402       gdk_event_free (new_event);
5403       gtk_widget_hide (tree_view->priv->search_window);
5404
5405       g_signal_handler_disconnect (tree_view->priv->search_entry,
5406                                    popup_menu_id);
5407
5408       /* We check to make sure that the entry tried to handle the text, and that
5409        * the text has changed.
5410        */
5411       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5412       text_modified = strcmp (old_text, new_text) != 0;
5413       g_free (old_text);
5414       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5415           (retval && text_modified))               /* ...or the text was modified */
5416         {
5417           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5418             {
5419               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5420               return TRUE;
5421             }
5422           else
5423             {
5424               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5425               return FALSE;
5426             }
5427         }
5428     }
5429
5430   return FALSE;
5431 }
5432
5433 static gboolean
5434 gtk_tree_view_key_release (GtkWidget   *widget,
5435                            GdkEventKey *event)
5436 {
5437   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5438
5439   if (tree_view->priv->rubber_band_status)
5440     return TRUE;
5441
5442   return (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event) (widget, event);
5443 }
5444
5445 /* FIXME Is this function necessary? Can I get an enter_notify event
5446  * w/o either an expose event or a mouse motion event?
5447  */
5448 static gboolean
5449 gtk_tree_view_enter_notify (GtkWidget        *widget,
5450                             GdkEventCrossing *event)
5451 {
5452   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5453   GtkRBTree *tree;
5454   GtkRBNode *node;
5455   gint new_y;
5456
5457   /* Sanity check it */
5458   if (event->window != tree_view->priv->bin_window)
5459     return FALSE;
5460
5461   if (tree_view->priv->tree == NULL)
5462     return FALSE;
5463
5464   /* find the node internally */
5465   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5466   if (new_y < 0)
5467     new_y = 0;
5468   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5469
5470   if ((tree_view->priv->button_pressed_node == NULL) ||
5471       (tree_view->priv->button_pressed_node == node))
5472     prelight_or_select (tree_view, tree, node, event->x, event->y);
5473
5474   return TRUE;
5475 }
5476
5477 static gboolean
5478 gtk_tree_view_leave_notify (GtkWidget        *widget,
5479                             GdkEventCrossing *event)
5480 {
5481   GtkTreeView *tree_view;
5482
5483   if (event->mode == GDK_CROSSING_GRAB)
5484     return TRUE;
5485
5486   tree_view = GTK_TREE_VIEW (widget);
5487
5488   if (tree_view->priv->prelight_node)
5489     _gtk_tree_view_queue_draw_node (tree_view,
5490                                    tree_view->priv->prelight_tree,
5491                                    tree_view->priv->prelight_node,
5492                                    NULL);
5493
5494   prelight_or_select (tree_view,
5495                       NULL, NULL,
5496                       -1000, -1000); /* coords not possibly over an arrow */
5497
5498   return TRUE;
5499 }
5500
5501
5502 static gint
5503 gtk_tree_view_focus_out (GtkWidget     *widget,
5504                          GdkEventFocus *event)
5505 {
5506   GtkTreeView *tree_view;
5507
5508   tree_view = GTK_TREE_VIEW (widget);
5509
5510   gtk_widget_queue_draw (widget);
5511
5512   /* destroy interactive search dialog */
5513   if (tree_view->priv->search_window)
5514     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5515
5516   return FALSE;
5517 }
5518
5519
5520 /* Incremental Reflow
5521  */
5522
5523 static void
5524 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5525                                  GtkRBTree   *tree,
5526                                  GtkRBNode   *node)
5527 {
5528   gint y;
5529
5530   y = _gtk_rbtree_node_find_offset (tree, node)
5531     - tree_view->priv->vadjustment->value
5532     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5533
5534   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5535                               0, y,
5536                               GTK_WIDGET (tree_view)->allocation.width,
5537                               GTK_RBNODE_GET_HEIGHT (node));
5538 }
5539
5540 static gboolean
5541 node_is_visible (GtkTreeView *tree_view,
5542                  GtkRBTree   *tree,
5543                  GtkRBNode   *node)
5544 {
5545   int y;
5546   int height;
5547
5548   y = _gtk_rbtree_node_find_offset (tree, node);
5549   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5550
5551   if (y >= tree_view->priv->vadjustment->value &&
5552       y + height <= (tree_view->priv->vadjustment->value
5553                      + tree_view->priv->vadjustment->page_size))
5554     return TRUE;
5555
5556   return FALSE;
5557 }
5558
5559 /* Returns TRUE if it updated the size
5560  */
5561 static gboolean
5562 validate_row (GtkTreeView *tree_view,
5563               GtkRBTree   *tree,
5564               GtkRBNode   *node,
5565               GtkTreeIter *iter,
5566               GtkTreePath *path)
5567 {
5568   GtkTreeViewColumn *column;
5569   GList *list, *first_column, *last_column;
5570   gint height = 0;
5571   gint horizontal_separator;
5572   gint vertical_separator;
5573   gint focus_line_width;
5574   gint depth = gtk_tree_path_get_depth (path);
5575   gboolean retval = FALSE;
5576   gboolean is_separator = FALSE;
5577   gboolean draw_vgrid_lines, draw_hgrid_lines;
5578   gint focus_pad;
5579   gint grid_line_width;
5580
5581   /* double check the row needs validating */
5582   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5583       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5584     return FALSE;
5585
5586   is_separator = row_is_separator (tree_view, iter, NULL);
5587
5588   gtk_widget_style_get (GTK_WIDGET (tree_view),
5589                         "focus-padding", &focus_pad,
5590                         "focus-line-width", &focus_line_width,
5591                         "horizontal-separator", &horizontal_separator,
5592                         "vertical-separator", &vertical_separator,
5593                         "grid-line-width", &grid_line_width,
5594                         NULL);
5595
5596   draw_vgrid_lines =
5597     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5598     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5599   draw_hgrid_lines =
5600     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5601     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5602
5603   for (last_column = g_list_last (tree_view->priv->columns);
5604        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5605        last_column = last_column->prev)
5606     ;
5607
5608   for (first_column = g_list_first (tree_view->priv->columns);
5609        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5610        first_column = first_column->next)
5611     ;
5612
5613   for (list = tree_view->priv->columns; list; list = list->next)
5614     {
5615       gint tmp_width;
5616       gint tmp_height;
5617
5618       column = list->data;
5619
5620       if (! column->visible)
5621         continue;
5622
5623       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5624         continue;
5625
5626       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5627                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5628                                                node->children?TRUE:FALSE);
5629       gtk_tree_view_column_cell_get_size (column,
5630                                           NULL, NULL, NULL,
5631                                           &tmp_width, &tmp_height);
5632
5633       if (!is_separator)
5634         {
5635           tmp_height += vertical_separator;
5636           height = MAX (height, tmp_height);
5637           height = MAX (height, tree_view->priv->expander_size);
5638         }
5639       else
5640         height = 2 + 2 * focus_pad;
5641
5642       if (gtk_tree_view_is_expander_column (tree_view, column))
5643         {
5644           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5645
5646           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5647             tmp_width += depth * tree_view->priv->expander_size;
5648         }
5649       else
5650         tmp_width = tmp_width + horizontal_separator;
5651
5652       if (draw_vgrid_lines)
5653         {
5654           if (list->data == first_column || list->data == last_column)
5655             tmp_width += grid_line_width / 2.0;
5656           else
5657             tmp_width += grid_line_width;
5658         }
5659
5660       if (tmp_width > column->requested_width)
5661         {
5662           retval = TRUE;
5663           column->requested_width = tmp_width;
5664         }
5665     }
5666
5667   if (draw_hgrid_lines)
5668     height += grid_line_width;
5669
5670   if (height != GTK_RBNODE_GET_HEIGHT (node))
5671     {
5672       retval = TRUE;
5673       _gtk_rbtree_node_set_height (tree, node, height);
5674     }
5675   _gtk_rbtree_node_mark_valid (tree, node);
5676   tree_view->priv->post_validation_flag = TRUE;
5677
5678   return retval;
5679 }
5680
5681
5682 static void
5683 validate_visible_area (GtkTreeView *tree_view)
5684 {
5685   GtkTreePath *path = NULL;
5686   GtkTreePath *above_path = NULL;
5687   GtkTreeIter iter;
5688   GtkRBTree *tree = NULL;
5689   GtkRBNode *node = NULL;
5690   gboolean need_redraw = FALSE;
5691   gboolean size_changed = FALSE;
5692   gint total_height;
5693   gint area_above = 0;
5694   gint area_below = 0;
5695
5696   if (tree_view->priv->tree == NULL)
5697     return;
5698
5699   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5700       tree_view->priv->scroll_to_path == NULL)
5701     return;
5702
5703   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5704
5705   if (total_height == 0)
5706     return;
5707
5708   /* First, we check to see if we need to scroll anywhere
5709    */
5710   if (tree_view->priv->scroll_to_path)
5711     {
5712       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5713       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5714         {
5715           /* we are going to scroll, and will update dy */
5716           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5717           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5718               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5719             {
5720               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5721               if (validate_row (tree_view, tree, node, &iter, path))
5722                 size_changed = TRUE;
5723             }
5724
5725           if (tree_view->priv->scroll_to_use_align)
5726             {
5727               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5728               area_above = (total_height - height) *
5729                 tree_view->priv->scroll_to_row_align;
5730               area_below = total_height - area_above - height;
5731               area_above = MAX (area_above, 0);
5732               area_below = MAX (area_below, 0);
5733             }
5734           else
5735             {
5736               /* two cases:
5737                * 1) row not visible
5738                * 2) row visible
5739                */
5740               gint dy;
5741               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5742
5743               dy = _gtk_rbtree_node_find_offset (tree, node);
5744
5745               if (dy >= tree_view->priv->vadjustment->value &&
5746                   dy + height <= (tree_view->priv->vadjustment->value
5747                                   + tree_view->priv->vadjustment->page_size))
5748                 {
5749                   /* row visible: keep the row at the same position */
5750                   area_above = dy - tree_view->priv->vadjustment->value;
5751                   area_below = (tree_view->priv->vadjustment->value +
5752                                 tree_view->priv->vadjustment->page_size)
5753                                - dy - height;
5754                 }
5755               else
5756                 {
5757                   /* row not visible */
5758                   if (dy >= 0
5759                       && dy + height <= tree_view->priv->vadjustment->page_size)
5760                     {
5761                       /* row at the beginning -- fixed */
5762                       area_above = dy;
5763                       area_below = tree_view->priv->vadjustment->page_size
5764                                    - area_above - height;
5765                     }
5766                   else if (dy >= (tree_view->priv->vadjustment->upper -
5767                                   tree_view->priv->vadjustment->page_size))
5768                     {
5769                       /* row at the end -- fixed */
5770                       area_above = dy - (tree_view->priv->vadjustment->upper -
5771                                    tree_view->priv->vadjustment->page_size);
5772                       area_below = tree_view->priv->vadjustment->page_size -
5773                                    area_above - height;
5774
5775                       if (area_below < 0)
5776                         {
5777                           area_above = tree_view->priv->vadjustment->page_size - height;
5778                           area_below = 0;
5779                         }
5780                     }
5781                   else
5782                     {
5783                       /* row somewhere in the middle, bring it to the top
5784                        * of the view
5785                        */
5786                       area_above = 0;
5787                       area_below = total_height - height;
5788                     }
5789                 }
5790             }
5791         }
5792       else
5793         /* the scroll to isn't valid; ignore it.
5794          */
5795         {
5796           if (tree_view->priv->scroll_to_path && !path)
5797             {
5798               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5799               tree_view->priv->scroll_to_path = NULL;
5800             }
5801           if (path)
5802             gtk_tree_path_free (path);
5803           path = NULL;
5804         }
5805     }
5806
5807   /* We didn't have a scroll_to set, so we just handle things normally
5808    */
5809   if (path == NULL)
5810     {
5811       gint offset;
5812
5813       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5814                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5815                                         &tree, &node);
5816       if (node == NULL)
5817         {
5818           /* In this case, nothing has been validated */
5819           path = gtk_tree_path_new_first ();
5820           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5821         }
5822       else
5823         {
5824           path = _gtk_tree_view_find_path (tree_view, tree, node);
5825           total_height += offset;
5826         }
5827
5828       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5829
5830       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5831           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5832         {
5833           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5834           if (validate_row (tree_view, tree, node, &iter, path))
5835             size_changed = TRUE;
5836         }
5837       area_above = 0;
5838       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5839     }
5840
5841   above_path = gtk_tree_path_copy (path);
5842
5843   /* if we do not validate any row above the new top_row, we will make sure
5844    * that the row immediately above top_row has been validated. (if we do not
5845    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5846    * when invalidated that row's height will be zero. and this will mess up
5847    * scrolling).
5848    */
5849   if (area_above == 0)
5850     {
5851       GtkRBTree *tmptree;
5852       GtkRBNode *tmpnode;
5853
5854       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5855       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5856
5857       if (tmpnode)
5858         {
5859           GtkTreePath *tmppath;
5860           GtkTreeIter tmpiter;
5861
5862           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5863           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5864
5865           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5866               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5867             {
5868               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5869               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5870                 size_changed = TRUE;
5871             }
5872
5873           gtk_tree_path_free (tmppath);
5874         }
5875     }
5876
5877   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5878    * backwards is much slower then forward, as there is no iter_prev function.
5879    * We go forwards first in case we run out of tree.  Then we go backwards to
5880    * fill out the top.
5881    */
5882   while (node && area_below > 0)
5883     {
5884       if (node->children)
5885         {
5886           GtkTreeIter parent = iter;
5887           gboolean has_child;
5888
5889           tree = node->children;
5890           node = tree->root;
5891
5892           g_assert (node != tree->nil);
5893
5894           while (node->left != tree->nil)
5895             node = node->left;
5896           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5897                                                     &iter,
5898                                                     &parent);
5899           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5900           gtk_tree_path_down (path);
5901         }
5902       else
5903         {
5904           gboolean done = FALSE;
5905           do
5906             {
5907               node = _gtk_rbtree_next (tree, node);
5908               if (node != NULL)
5909                 {
5910                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5911                   done = TRUE;
5912                   gtk_tree_path_next (path);
5913
5914                   /* Sanity Check! */
5915                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5916                 }
5917               else
5918                 {
5919                   GtkTreeIter parent_iter = iter;
5920                   gboolean has_parent;
5921
5922                   node = tree->parent_node;
5923                   tree = tree->parent_tree;
5924                   if (tree == NULL)
5925                     break;
5926                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5927                                                            &iter,
5928                                                            &parent_iter);
5929                   gtk_tree_path_up (path);
5930
5931                   /* Sanity check */
5932                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5933                 }
5934             }
5935           while (!done);
5936         }
5937
5938       if (!node)
5939         break;
5940
5941       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5942           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5943         {
5944           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5945           if (validate_row (tree_view, tree, node, &iter, path))
5946               size_changed = TRUE;
5947         }
5948
5949       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5950     }
5951   gtk_tree_path_free (path);
5952
5953   /* If we ran out of tree, and have extra area_below left, we need to add it
5954    * to area_above */
5955   if (area_below > 0)
5956     area_above += area_below;
5957
5958   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5959
5960   /* We walk backwards */
5961   while (area_above > 0)
5962     {
5963       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5964       if (! gtk_tree_path_prev (above_path) && node != NULL)
5965         {
5966           gtk_tree_path_free (above_path);
5967           above_path = _gtk_tree_view_find_path (tree_view, tree, node);
5968         }
5969       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
5970
5971       if (node == NULL)
5972         break;
5973
5974       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5975           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5976         {
5977           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5978           if (validate_row (tree_view, tree, node, &iter, above_path))
5979             size_changed = TRUE;
5980         }
5981       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5982     }
5983
5984   /* if we scrolled to a path, we need to set the dy here,
5985    * and sync the top row accordingly
5986    */
5987   if (tree_view->priv->scroll_to_path)
5988     {
5989       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
5990       gtk_tree_view_top_row_to_dy (tree_view);
5991
5992       need_redraw = TRUE;
5993     }
5994   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
5995     {
5996       /* when we are not scrolling, we should never set dy to something
5997        * else than zero. we update top_row to be in sync with dy = 0.
5998        */
5999       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6000       gtk_tree_view_dy_to_top_row (tree_view);
6001     }
6002   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6003     {
6004       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6005       gtk_tree_view_dy_to_top_row (tree_view);
6006     }
6007   else
6008     gtk_tree_view_top_row_to_dy (tree_view);
6009
6010   /* update width/height and queue a resize */
6011   if (size_changed)
6012     {
6013       GtkRequisition requisition;
6014
6015       /* We temporarily guess a size, under the assumption that it will be the
6016        * same when we get our next size_allocate.  If we don't do this, we'll be
6017        * in an inconsistent state if we call top_row_to_dy. */
6018
6019       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6020       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6021       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6022       gtk_adjustment_changed (tree_view->priv->hadjustment);
6023       gtk_adjustment_changed (tree_view->priv->vadjustment);
6024       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6025     }
6026
6027   if (tree_view->priv->scroll_to_path)
6028     {
6029       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6030       tree_view->priv->scroll_to_path = NULL;
6031     }
6032
6033   if (above_path)
6034     gtk_tree_path_free (above_path);
6035
6036   if (tree_view->priv->scroll_to_column)
6037     {
6038       tree_view->priv->scroll_to_column = NULL;
6039     }
6040   if (need_redraw)
6041     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6042 }
6043
6044 static void
6045 initialize_fixed_height_mode (GtkTreeView *tree_view)
6046 {
6047   if (!tree_view->priv->tree)
6048     return;
6049
6050   if (tree_view->priv->fixed_height < 0)
6051     {
6052       GtkTreeIter iter;
6053       GtkTreePath *path;
6054
6055       GtkRBTree *tree = NULL;
6056       GtkRBNode *node = NULL;
6057
6058       tree = tree_view->priv->tree;
6059       node = tree->root;
6060
6061       path = _gtk_tree_view_find_path (tree_view, tree, node);
6062       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6063
6064       validate_row (tree_view, tree, node, &iter, path);
6065
6066       gtk_tree_path_free (path);
6067
6068       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6069     }
6070
6071    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6072                                  tree_view->priv->fixed_height, TRUE);
6073 }
6074
6075 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6076  * the left-most uninvalidated node.  We then try walking right, validating
6077  * nodes.  Once we find a valid node, we repeat the previous process of finding
6078  * the first invalid node.
6079  */
6080
6081 static gboolean
6082 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6083 {
6084   GtkRBTree *tree = NULL;
6085   GtkRBNode *node = NULL;
6086   gboolean validated_area = FALSE;
6087   gint retval = TRUE;
6088   GtkTreePath *path = NULL;
6089   GtkTreeIter iter;
6090   gint i = 0;
6091
6092   gint prev_height = -1;
6093   gboolean fixed_height = TRUE;
6094
6095   g_assert (tree_view);
6096
6097   if (tree_view->priv->tree == NULL)
6098       return FALSE;
6099
6100   if (tree_view->priv->fixed_height_mode)
6101     {
6102       if (tree_view->priv->fixed_height < 0)
6103         initialize_fixed_height_mode (tree_view);
6104
6105       return FALSE;
6106     }
6107
6108   do
6109     {
6110       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6111         {
6112           retval = FALSE;
6113           goto done;
6114         }
6115
6116       if (path != NULL)
6117         {
6118           node = _gtk_rbtree_next (tree, node);
6119           if (node != NULL)
6120             {
6121               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6122               gtk_tree_path_next (path);
6123             }
6124           else
6125             {
6126               gtk_tree_path_free (path);
6127               path = NULL;
6128             }
6129         }
6130
6131       if (path == NULL)
6132         {
6133           tree = tree_view->priv->tree;
6134           node = tree_view->priv->tree->root;
6135
6136           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6137
6138           do
6139             {
6140               if (node->left != tree->nil &&
6141                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6142                 {
6143                   node = node->left;
6144                 }
6145               else if (node->right != tree->nil &&
6146                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6147                 {
6148                   node = node->right;
6149                 }
6150               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6151                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6152                 {
6153                   break;
6154                 }
6155               else if (node->children != NULL)
6156                 {
6157                   tree = node->children;
6158                   node = tree->root;
6159                 }
6160               else
6161                 /* RBTree corruption!  All bad */
6162                 g_assert_not_reached ();
6163             }
6164           while (TRUE);
6165           path = _gtk_tree_view_find_path (tree_view, tree, node);
6166           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6167         }
6168
6169       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6170                        validated_area;
6171
6172       if (!tree_view->priv->fixed_height_check)
6173         {
6174           gint height;
6175
6176           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6177           if (prev_height < 0)
6178             prev_height = height;
6179           else if (prev_height != height)
6180             fixed_height = FALSE;
6181         }
6182
6183       i++;
6184     }
6185   while (i < GTK_TREE_VIEW_NUM_ROWS_PER_IDLE);
6186
6187   if (!tree_view->priv->fixed_height_check)
6188    {
6189      if (fixed_height)
6190        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6191
6192      tree_view->priv->fixed_height_check = 1;
6193    }
6194
6195  done:
6196   if (validated_area)
6197     {
6198       GtkRequisition requisition;
6199       /* We temporarily guess a size, under the assumption that it will be the
6200        * same when we get our next size_allocate.  If we don't do this, we'll be
6201        * in an inconsistent state when we call top_row_to_dy. */
6202
6203       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6204       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6205       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6206       gtk_adjustment_changed (tree_view->priv->hadjustment);
6207       gtk_adjustment_changed (tree_view->priv->vadjustment);
6208
6209       if (queue_resize)
6210         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
6211     }
6212
6213   if (path) gtk_tree_path_free (path);
6214
6215   return retval;
6216 }
6217
6218 static gboolean
6219 validate_rows (GtkTreeView *tree_view)
6220 {
6221   gboolean retval;
6222
6223   retval = do_validate_rows (tree_view, TRUE);
6224
6225   if (! retval && tree_view->priv->validate_rows_timer)
6226     {
6227       g_source_remove (tree_view->priv->validate_rows_timer);
6228       tree_view->priv->validate_rows_timer = 0;
6229     }
6230
6231   return retval;
6232 }
6233
6234 static gboolean
6235 validate_rows_handler (GtkTreeView *tree_view)
6236 {
6237   gboolean retval;
6238
6239   retval = do_validate_rows (tree_view, TRUE);
6240   if (! retval && tree_view->priv->validate_rows_timer)
6241     {
6242       g_source_remove (tree_view->priv->validate_rows_timer);
6243       tree_view->priv->validate_rows_timer = 0;
6244     }
6245
6246   return retval;
6247 }
6248
6249 static gboolean
6250 do_presize_handler (GtkTreeView *tree_view)
6251 {
6252   if (tree_view->priv->mark_rows_col_dirty)
6253     {
6254       if (tree_view->priv->tree)
6255         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6256       tree_view->priv->mark_rows_col_dirty = FALSE;
6257     }
6258   validate_visible_area (tree_view);
6259   tree_view->priv->presize_handler_timer = 0;
6260
6261   if (tree_view->priv->fixed_height_mode)
6262     {
6263       GtkRequisition requisition;
6264
6265       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6266
6267       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6268       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6269       gtk_adjustment_changed (tree_view->priv->hadjustment);
6270       gtk_adjustment_changed (tree_view->priv->vadjustment);
6271       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6272     }
6273
6274   return FALSE;
6275 }
6276
6277 static gboolean
6278 presize_handler_callback (gpointer data)
6279 {
6280   do_presize_handler (GTK_TREE_VIEW (data));
6281
6282   return FALSE;
6283 }
6284
6285 static void
6286 install_presize_handler (GtkTreeView *tree_view)
6287 {
6288   if (! GTK_WIDGET_REALIZED (tree_view))
6289     return;
6290
6291   if (! tree_view->priv->presize_handler_timer)
6292     {
6293       tree_view->priv->presize_handler_timer =
6294         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6295     }
6296   if (! tree_view->priv->validate_rows_timer)
6297     {
6298       tree_view->priv->validate_rows_timer =
6299         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6300     }
6301 }
6302
6303 static gboolean
6304 scroll_sync_handler (GtkTreeView *tree_view)
6305 {
6306   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6307     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6308   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6309     gtk_tree_view_top_row_to_dy (tree_view);
6310   else
6311     gtk_tree_view_dy_to_top_row (tree_view);
6312
6313   tree_view->priv->scroll_sync_timer = 0;
6314
6315   return FALSE;
6316 }
6317
6318 static void
6319 install_scroll_sync_handler (GtkTreeView *tree_view)
6320 {
6321   if (! GTK_WIDGET_REALIZED (tree_view))
6322     return;
6323
6324   if (!tree_view->priv->scroll_sync_timer)
6325     {
6326       tree_view->priv->scroll_sync_timer =
6327         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6328     }
6329 }
6330
6331 static void
6332 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6333                            GtkTreePath *path,
6334                            gint         offset)
6335 {
6336   gtk_tree_row_reference_free (tree_view->priv->top_row);
6337
6338   if (!path)
6339     {
6340       tree_view->priv->top_row = NULL;
6341       tree_view->priv->top_row_dy = 0;
6342     }
6343   else
6344     {
6345       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6346       tree_view->priv->top_row_dy = offset;
6347     }
6348 }
6349
6350 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6351  * it's set to be NULL, and top_row_dy is 0;
6352  */
6353 static void
6354 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6355 {
6356   gint offset;
6357   GtkTreePath *path;
6358   GtkRBTree *tree;
6359   GtkRBNode *node;
6360
6361   if (tree_view->priv->tree == NULL)
6362     {
6363       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6364     }
6365   else
6366     {
6367       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6368                                         tree_view->priv->dy,
6369                                         &tree, &node);
6370
6371       if (tree == NULL)
6372         {
6373           tree_view->priv->top_row = NULL;
6374           tree_view->priv->top_row_dy = 0;
6375         }
6376       else
6377         {
6378           path = _gtk_tree_view_find_path (tree_view, tree, node);
6379           gtk_tree_view_set_top_row (tree_view, path, offset);
6380           gtk_tree_path_free (path);
6381         }
6382     }
6383 }
6384
6385 static void
6386 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6387 {
6388   GtkTreePath *path;
6389   GtkRBTree *tree;
6390   GtkRBNode *node;
6391   int new_dy;
6392
6393   if (tree_view->priv->top_row)
6394     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6395   else
6396     path = NULL;
6397
6398   if (!path)
6399     tree = NULL;
6400   else
6401     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6402
6403   if (path)
6404     gtk_tree_path_free (path);
6405
6406   if (tree == NULL)
6407     {
6408       /* keep dy and set new toprow */
6409       gtk_tree_row_reference_free (tree_view->priv->top_row);
6410       tree_view->priv->top_row = NULL;
6411       tree_view->priv->top_row_dy = 0;
6412       /* DO NOT install the idle handler */
6413       gtk_tree_view_dy_to_top_row (tree_view);
6414       return;
6415     }
6416
6417   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6418       < tree_view->priv->top_row_dy)
6419     {
6420       /* new top row -- do NOT install the idle handler */
6421       gtk_tree_view_dy_to_top_row (tree_view);
6422       return;
6423     }
6424
6425   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6426   new_dy += tree_view->priv->top_row_dy;
6427
6428   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6429     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6430
6431   new_dy = MAX (0, new_dy);
6432
6433   tree_view->priv->in_top_row_to_dy = TRUE;
6434   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6435   tree_view->priv->in_top_row_to_dy = FALSE;
6436 }
6437
6438
6439 void
6440 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6441 {
6442   tree_view->priv->mark_rows_col_dirty = TRUE;
6443
6444   install_presize_handler (tree_view);
6445 }
6446
6447 /*
6448  * This function works synchronously (due to the while (validate_rows...)
6449  * loop).
6450  *
6451  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6452  * here. You now need to check that yourself.
6453  */
6454 void
6455 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6456                                 GtkTreeViewColumn *column)
6457 {
6458   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6459   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6460
6461   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6462
6463   do_presize_handler (tree_view);
6464   while (validate_rows (tree_view));
6465
6466   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6467 }
6468
6469 /* Drag-and-drop */
6470
6471 static void
6472 set_source_row (GdkDragContext *context,
6473                 GtkTreeModel   *model,
6474                 GtkTreePath    *source_row)
6475 {
6476   g_object_set_data_full (G_OBJECT (context),
6477                           I_("gtk-tree-view-source-row"),
6478                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6479                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6480 }
6481
6482 static GtkTreePath*
6483 get_source_row (GdkDragContext *context)
6484 {
6485   GtkTreeRowReference *ref =
6486     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6487
6488   if (ref)
6489     return gtk_tree_row_reference_get_path (ref);
6490   else
6491     return NULL;
6492 }
6493
6494 typedef struct
6495 {
6496   GtkTreeRowReference *dest_row;
6497   guint                path_down_mode   : 1;
6498   guint                empty_view_drop  : 1;
6499   guint                drop_append_mode : 1;
6500 }
6501 DestRow;
6502
6503 static void
6504 dest_row_free (gpointer data)
6505 {
6506   DestRow *dr = (DestRow *)data;
6507
6508   gtk_tree_row_reference_free (dr->dest_row);
6509   g_slice_free (DestRow, dr);
6510 }
6511
6512 static void
6513 set_dest_row (GdkDragContext *context,
6514               GtkTreeModel   *model,
6515               GtkTreePath    *dest_row,
6516               gboolean        path_down_mode,
6517               gboolean        empty_view_drop,
6518               gboolean        drop_append_mode)
6519 {
6520   DestRow *dr;
6521
6522   if (!dest_row)
6523     {
6524       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6525                               NULL, NULL);
6526       return;
6527     }
6528
6529   dr = g_slice_new (DestRow);
6530
6531   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6532   dr->path_down_mode = path_down_mode != FALSE;
6533   dr->empty_view_drop = empty_view_drop != FALSE;
6534   dr->drop_append_mode = drop_append_mode != FALSE;
6535
6536   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6537                           dr, (GDestroyNotify) dest_row_free);
6538 }
6539
6540 static GtkTreePath*
6541 get_dest_row (GdkDragContext *context,
6542               gboolean       *path_down_mode)
6543 {
6544   DestRow *dr =
6545     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6546
6547   if (dr)
6548     {
6549       GtkTreePath *path = NULL;
6550
6551       if (path_down_mode)
6552         *path_down_mode = dr->path_down_mode;
6553
6554       if (dr->dest_row)
6555         path = gtk_tree_row_reference_get_path (dr->dest_row);
6556       else if (dr->empty_view_drop)
6557         path = gtk_tree_path_new_from_indices (0, -1);
6558       else
6559         path = NULL;
6560
6561       if (path && dr->drop_append_mode)
6562         gtk_tree_path_next (path);
6563
6564       return path;
6565     }
6566   else
6567     return NULL;
6568 }
6569
6570 /* Get/set whether drag_motion requested the drag data and
6571  * drag_data_received should thus not actually insert the data,
6572  * since the data doesn't result from a drop.
6573  */
6574 static void
6575 set_status_pending (GdkDragContext *context,
6576                     GdkDragAction   suggested_action)
6577 {
6578   g_object_set_data (G_OBJECT (context),
6579                      I_("gtk-tree-view-status-pending"),
6580                      GINT_TO_POINTER (suggested_action));
6581 }
6582
6583 static GdkDragAction
6584 get_status_pending (GdkDragContext *context)
6585 {
6586   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6587                                              "gtk-tree-view-status-pending"));
6588 }
6589
6590 static TreeViewDragInfo*
6591 get_info (GtkTreeView *tree_view)
6592 {
6593   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6594 }
6595
6596 static void
6597 destroy_info (TreeViewDragInfo *di)
6598 {
6599   g_slice_free (TreeViewDragInfo, di);
6600 }
6601
6602 static TreeViewDragInfo*
6603 ensure_info (GtkTreeView *tree_view)
6604 {
6605   TreeViewDragInfo *di;
6606
6607   di = get_info (tree_view);
6608
6609   if (di == NULL)
6610     {
6611       di = g_slice_new0 (TreeViewDragInfo);
6612
6613       g_object_set_data_full (G_OBJECT (tree_view),
6614                               I_("gtk-tree-view-drag-info"),
6615                               di,
6616                               (GDestroyNotify) destroy_info);
6617     }
6618
6619   return di;
6620 }
6621
6622 static void
6623 remove_info (GtkTreeView *tree_view)
6624 {
6625   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6626 }
6627
6628 #if 0
6629 static gint
6630 drag_scan_timeout (gpointer data)
6631 {
6632   GtkTreeView *tree_view;
6633   gint x, y;
6634   GdkModifierType state;
6635   GtkTreePath *path = NULL;
6636   GtkTreeViewColumn *column = NULL;
6637   GdkRectangle visible_rect;
6638
6639   GDK_THREADS_ENTER ();
6640
6641   tree_view = GTK_TREE_VIEW (data);
6642
6643   gdk_window_get_pointer (tree_view->priv->bin_window,
6644                           &x, &y, &state);
6645
6646   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6647
6648   /* See if we are near the edge. */
6649   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6650       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6651       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6652       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6653     {
6654       gtk_tree_view_get_path_at_pos (tree_view,
6655                                      tree_view->priv->bin_window,
6656                                      x, y,
6657                                      &path,
6658                                      &column,
6659                                      NULL,
6660                                      NULL);
6661
6662       if (path != NULL)
6663         {
6664           gtk_tree_view_scroll_to_cell (tree_view,
6665                                         path,
6666                                         column,
6667                                         TRUE,
6668                                         0.5, 0.5);
6669
6670           gtk_tree_path_free (path);
6671         }
6672     }
6673
6674   GDK_THREADS_LEAVE ();
6675
6676   return TRUE;
6677 }
6678 #endif /* 0 */
6679
6680 static void
6681 add_scroll_timeout (GtkTreeView *tree_view)
6682 {
6683   if (tree_view->priv->scroll_timeout == 0)
6684     {
6685       tree_view->priv->scroll_timeout =
6686         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6687     }
6688 }
6689
6690 static void
6691 remove_scroll_timeout (GtkTreeView *tree_view)
6692 {
6693   if (tree_view->priv->scroll_timeout != 0)
6694     {
6695       g_source_remove (tree_view->priv->scroll_timeout);
6696       tree_view->priv->scroll_timeout = 0;
6697     }
6698 }
6699
6700 static gboolean
6701 check_model_dnd (GtkTreeModel *model,
6702                  GType         required_iface,
6703                  const gchar  *signal)
6704 {
6705   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6706     {
6707       g_warning ("You must override the default '%s' handler "
6708                  "on GtkTreeView when using models that don't support "
6709                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6710                  "is to connect to '%s' and call "
6711                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6712                  "the default handler from running. Look at the source code "
6713                  "for the default handler in gtktreeview.c to get an idea what "
6714                  "your handler should do. (gtktreeview.c is in the GTK source "
6715                  "code.) If you're using GTK from a language other than C, "
6716                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6717                  signal, g_type_name (required_iface), signal);
6718       return FALSE;
6719     }
6720   else
6721     return TRUE;
6722 }
6723
6724 static void
6725 remove_open_timeout (GtkTreeView *tree_view)
6726 {
6727   if (tree_view->priv->open_dest_timeout != 0)
6728     {
6729       g_source_remove (tree_view->priv->open_dest_timeout);
6730       tree_view->priv->open_dest_timeout = 0;
6731     }
6732 }
6733
6734
6735 static gint
6736 open_row_timeout (gpointer data)
6737 {
6738   GtkTreeView *tree_view = data;
6739   GtkTreePath *dest_path = NULL;
6740   GtkTreeViewDropPosition pos;
6741   gboolean result = FALSE;
6742
6743   gtk_tree_view_get_drag_dest_row (tree_view,
6744                                    &dest_path,
6745                                    &pos);
6746
6747   if (dest_path &&
6748       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6749        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6750     {
6751       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6752       tree_view->priv->open_dest_timeout = 0;
6753
6754       gtk_tree_path_free (dest_path);
6755     }
6756   else
6757     {
6758       if (dest_path)
6759         gtk_tree_path_free (dest_path);
6760
6761       result = TRUE;
6762     }
6763
6764   return result;
6765 }
6766
6767 static gboolean
6768 scroll_row_timeout (gpointer data)
6769 {
6770   GtkTreeView *tree_view = data;
6771
6772   gtk_tree_view_vertical_autoscroll (tree_view);
6773
6774   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6775     gtk_tree_view_update_rubber_band (tree_view);
6776
6777   return TRUE;
6778 }
6779
6780 /* Returns TRUE if event should not be propagated to parent widgets */
6781 static gboolean
6782 set_destination_row (GtkTreeView    *tree_view,
6783                      GdkDragContext *context,
6784                      /* coordinates relative to the widget */
6785                      gint            x,
6786                      gint            y,
6787                      GdkDragAction  *suggested_action,
6788                      GdkAtom        *target)
6789 {
6790   GtkTreePath *path = NULL;
6791   GtkTreeViewDropPosition pos;
6792   GtkTreeViewDropPosition old_pos;
6793   TreeViewDragInfo *di;
6794   GtkWidget *widget;
6795   GtkTreePath *old_dest_path = NULL;
6796   gboolean can_drop = FALSE;
6797
6798   *suggested_action = 0;
6799   *target = GDK_NONE;
6800
6801   widget = GTK_WIDGET (tree_view);
6802
6803   di = get_info (tree_view);
6804
6805   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6806     {
6807       /* someone unset us as a drag dest, note that if
6808        * we return FALSE drag_leave isn't called
6809        */
6810
6811       gtk_tree_view_set_drag_dest_row (tree_view,
6812                                        NULL,
6813                                        GTK_TREE_VIEW_DROP_BEFORE);
6814
6815       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6816       remove_open_timeout (GTK_TREE_VIEW (widget));
6817
6818       return FALSE; /* no longer a drop site */
6819     }
6820
6821   *target = gtk_drag_dest_find_target (widget, context,
6822                                        gtk_drag_dest_get_target_list (widget));
6823   if (*target == GDK_NONE)
6824     {
6825       return FALSE;
6826     }
6827
6828   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6829                                           x, y,
6830                                           &path,
6831                                           &pos))
6832     {
6833       gint n_children;
6834       GtkTreeModel *model;
6835
6836       remove_open_timeout (tree_view);
6837
6838       /* the row got dropped on empty space, let's setup a special case
6839        */
6840
6841       if (path)
6842         gtk_tree_path_free (path);
6843
6844       model = gtk_tree_view_get_model (tree_view);
6845
6846       n_children = gtk_tree_model_iter_n_children (model, NULL);
6847       if (n_children)
6848         {
6849           pos = GTK_TREE_VIEW_DROP_AFTER;
6850           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6851         }
6852       else
6853         {
6854           pos = GTK_TREE_VIEW_DROP_BEFORE;
6855           path = gtk_tree_path_new_from_indices (0, -1);
6856         }
6857
6858       can_drop = TRUE;
6859
6860       goto out;
6861     }
6862
6863   g_assert (path);
6864
6865   /* If we left the current row's "open" zone, unset the timeout for
6866    * opening the row
6867    */
6868   gtk_tree_view_get_drag_dest_row (tree_view,
6869                                    &old_dest_path,
6870                                    &old_pos);
6871
6872   if (old_dest_path &&
6873       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6874        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6875          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6876     remove_open_timeout (tree_view);
6877
6878   if (old_dest_path)
6879     gtk_tree_path_free (old_dest_path);
6880
6881   if (TRUE /* FIXME if the location droppable predicate */)
6882     {
6883       can_drop = TRUE;
6884     }
6885
6886 out:
6887   if (can_drop)
6888     {
6889       GtkWidget *source_widget;
6890
6891       *suggested_action = context->suggested_action;
6892       source_widget = gtk_drag_get_source_widget (context);
6893
6894       if (source_widget == widget)
6895         {
6896           /* Default to MOVE, unless the user has
6897            * pressed ctrl or shift to affect available actions
6898            */
6899           if ((context->actions & GDK_ACTION_MOVE) != 0)
6900             *suggested_action = GDK_ACTION_MOVE;
6901         }
6902
6903       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6904                                        path, pos);
6905     }
6906   else
6907     {
6908       /* can't drop here */
6909       remove_open_timeout (tree_view);
6910
6911       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6912                                        NULL,
6913                                        GTK_TREE_VIEW_DROP_BEFORE);
6914     }
6915
6916   if (path)
6917     gtk_tree_path_free (path);
6918
6919   return TRUE;
6920 }
6921
6922 static GtkTreePath*
6923 get_logical_dest_row (GtkTreeView *tree_view,
6924                       gboolean    *path_down_mode,
6925                       gboolean    *drop_append_mode)
6926 {
6927   /* adjust path to point to the row the drop goes in front of */
6928   GtkTreePath *path = NULL;
6929   GtkTreeViewDropPosition pos;
6930
6931   g_return_val_if_fail (path_down_mode != NULL, NULL);
6932   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6933
6934   *path_down_mode = FALSE;
6935   *drop_append_mode = 0;
6936
6937   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6938
6939   if (path == NULL)
6940     return NULL;
6941
6942   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6943     ; /* do nothing */
6944   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6945            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6946     *path_down_mode = TRUE;
6947   else
6948     {
6949       GtkTreeIter iter;
6950       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6951
6952       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6953
6954       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6955           !gtk_tree_model_iter_next (model, &iter))
6956         *drop_append_mode = 1;
6957       else
6958         {
6959           *drop_append_mode = 0;
6960           gtk_tree_path_next (path);
6961         }
6962     }
6963
6964   return path;
6965 }
6966
6967 static gboolean
6968 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
6969                                         GdkEventMotion   *event)
6970 {
6971   GtkWidget *widget = GTK_WIDGET (tree_view);
6972   GdkDragContext *context;
6973   TreeViewDragInfo *di;
6974   GtkTreePath *path = NULL;
6975   gint button;
6976   gint cell_x, cell_y;
6977   GtkTreeModel *model;
6978   gboolean retval = FALSE;
6979
6980   di = get_info (tree_view);
6981
6982   if (di == NULL || !di->source_set)
6983     goto out;
6984
6985   if (tree_view->priv->pressed_button < 0)
6986     goto out;
6987
6988   if (!gtk_drag_check_threshold (widget,
6989                                  tree_view->priv->press_start_x,
6990                                  tree_view->priv->press_start_y,
6991                                  event->x, event->y))
6992     goto out;
6993
6994   model = gtk_tree_view_get_model (tree_view);
6995
6996   if (model == NULL)
6997     goto out;
6998
6999   button = tree_view->priv->pressed_button;
7000   tree_view->priv->pressed_button = -1;
7001
7002   gtk_tree_view_get_path_at_pos (tree_view,
7003                                  tree_view->priv->press_start_x,
7004                                  tree_view->priv->press_start_y,
7005                                  &path,
7006                                  NULL,
7007                                  &cell_x,
7008                                  &cell_y);
7009
7010   if (path == NULL)
7011     goto out;
7012
7013   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7014       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7015                                            path))
7016     goto out;
7017
7018   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7019     goto out;
7020
7021   /* Now we can begin the drag */
7022
7023   retval = TRUE;
7024
7025   context = gtk_drag_begin (widget,
7026                             gtk_drag_source_get_target_list (widget),
7027                             di->source_actions,
7028                             button,
7029                             (GdkEvent*)event);
7030
7031   set_source_row (context, model, path);
7032
7033  out:
7034   if (path)
7035     gtk_tree_path_free (path);
7036
7037   return retval;
7038 }
7039
7040
7041 static void
7042 gtk_tree_view_drag_begin (GtkWidget      *widget,
7043                           GdkDragContext *context)
7044 {
7045   GtkTreeView *tree_view;
7046   GtkTreePath *path = NULL;
7047   gint cell_x, cell_y;
7048   GdkPixmap *row_pix;
7049   TreeViewDragInfo *di;
7050
7051   tree_view = GTK_TREE_VIEW (widget);
7052
7053   /* if the user uses a custom DND source impl, we don't set the icon here */
7054   di = get_info (tree_view);
7055
7056   if (di == NULL || !di->source_set)
7057     return;
7058
7059   gtk_tree_view_get_path_at_pos (tree_view,
7060                                  tree_view->priv->press_start_x,
7061                                  tree_view->priv->press_start_y,
7062                                  &path,
7063                                  NULL,
7064                                  &cell_x,
7065                                  &cell_y);
7066
7067   g_return_if_fail (path != NULL);
7068
7069   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7070                                                 path);
7071
7072   gtk_drag_set_icon_pixmap (context,
7073                             gdk_drawable_get_colormap (row_pix),
7074                             row_pix,
7075                             NULL,
7076                             /* the + 1 is for the black border in the icon */
7077                             tree_view->priv->press_start_x + 1,
7078                             cell_y + 1);
7079
7080   g_object_unref (row_pix);
7081   gtk_tree_path_free (path);
7082 }
7083
7084 static void
7085 gtk_tree_view_drag_end (GtkWidget      *widget,
7086                         GdkDragContext *context)
7087 {
7088   /* do nothing */
7089 }
7090
7091 /* Default signal implementations for the drag signals */
7092 static void
7093 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7094                              GdkDragContext   *context,
7095                              GtkSelectionData *selection_data,
7096                              guint             info,
7097                              guint             time)
7098 {
7099   GtkTreeView *tree_view;
7100   GtkTreeModel *model;
7101   TreeViewDragInfo *di;
7102   GtkTreePath *source_row;
7103
7104   tree_view = GTK_TREE_VIEW (widget);
7105
7106   model = gtk_tree_view_get_model (tree_view);
7107
7108   if (model == NULL)
7109     return;
7110
7111   di = get_info (GTK_TREE_VIEW (widget));
7112
7113   if (di == NULL)
7114     return;
7115
7116   source_row = get_source_row (context);
7117
7118   if (source_row == NULL)
7119     return;
7120
7121   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7122    * any model; for DragSource models there are some other targets
7123    * we also support.
7124    */
7125
7126   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7127       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7128                                           source_row,
7129                                           selection_data))
7130     goto done;
7131
7132   /* If drag_data_get does nothing, try providing row data. */
7133   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7134     {
7135       gtk_tree_set_row_drag_data (selection_data,
7136                                   model,
7137                                   source_row);
7138     }
7139
7140  done:
7141   gtk_tree_path_free (source_row);
7142 }
7143
7144
7145 static void
7146 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7147                                 GdkDragContext *context)
7148 {
7149   TreeViewDragInfo *di;
7150   GtkTreeModel *model;
7151   GtkTreeView *tree_view;
7152   GtkTreePath *source_row;
7153
7154   tree_view = GTK_TREE_VIEW (widget);
7155   model = gtk_tree_view_get_model (tree_view);
7156
7157   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7158     return;
7159
7160   di = get_info (tree_view);
7161
7162   if (di == NULL)
7163     return;
7164
7165   source_row = get_source_row (context);
7166
7167   if (source_row == NULL)
7168     return;
7169
7170   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7171                                          source_row);
7172
7173   gtk_tree_path_free (source_row);
7174
7175   set_source_row (context, NULL, NULL);
7176 }
7177
7178 static void
7179 gtk_tree_view_drag_leave (GtkWidget      *widget,
7180                           GdkDragContext *context,
7181                           guint             time)
7182 {
7183   /* unset any highlight row */
7184   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7185                                    NULL,
7186                                    GTK_TREE_VIEW_DROP_BEFORE);
7187
7188   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7189   remove_open_timeout (GTK_TREE_VIEW (widget));
7190 }
7191
7192
7193 static gboolean
7194 gtk_tree_view_drag_motion (GtkWidget        *widget,
7195                            GdkDragContext   *context,
7196                            /* coordinates relative to the widget */
7197                            gint              x,
7198                            gint              y,
7199                            guint             time)
7200 {
7201   gboolean empty;
7202   GtkTreePath *path = NULL;
7203   GtkTreeViewDropPosition pos;
7204   GtkTreeView *tree_view;
7205   GdkDragAction suggested_action = 0;
7206   GdkAtom target;
7207
7208   tree_view = GTK_TREE_VIEW (widget);
7209
7210   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7211     return FALSE;
7212
7213   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7214
7215   /* we only know this *after* set_desination_row */
7216   empty = tree_view->priv->empty_view_drop;
7217
7218   if (path == NULL && !empty)
7219     {
7220       /* Can't drop here. */
7221       gdk_drag_status (context, 0, time);
7222     }
7223   else
7224     {
7225       if (tree_view->priv->open_dest_timeout == 0 &&
7226           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7227            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7228         {
7229           tree_view->priv->open_dest_timeout =
7230             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7231         }
7232       else
7233         {
7234           add_scroll_timeout (tree_view);
7235         }
7236
7237       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7238         {
7239           /* Request data so we can use the source row when
7240            * determining whether to accept the drop
7241            */
7242           set_status_pending (context, suggested_action);
7243           gtk_drag_get_data (widget, context, target, time);
7244         }
7245       else
7246         {
7247           set_status_pending (context, 0);
7248           gdk_drag_status (context, suggested_action, time);
7249         }
7250     }
7251
7252   if (path)
7253     gtk_tree_path_free (path);
7254
7255   return TRUE;
7256 }
7257
7258
7259 static gboolean
7260 gtk_tree_view_drag_drop (GtkWidget        *widget,
7261                          GdkDragContext   *context,
7262                          /* coordinates relative to the widget */
7263                          gint              x,
7264                          gint              y,
7265                          guint             time)
7266 {
7267   GtkTreeView *tree_view;
7268   GtkTreePath *path;
7269   GdkDragAction suggested_action = 0;
7270   GdkAtom target = GDK_NONE;
7271   TreeViewDragInfo *di;
7272   GtkTreeModel *model;
7273   gboolean path_down_mode;
7274   gboolean drop_append_mode;
7275
7276   tree_view = GTK_TREE_VIEW (widget);
7277
7278   model = gtk_tree_view_get_model (tree_view);
7279
7280   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7281   remove_open_timeout (GTK_TREE_VIEW (widget));
7282
7283   di = get_info (tree_view);
7284
7285   if (di == NULL)
7286     return FALSE;
7287
7288   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7289     return FALSE;
7290
7291   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7292     return FALSE;
7293
7294   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7295
7296   if (target != GDK_NONE && path != NULL)
7297     {
7298       /* in case a motion had requested drag data, change things so we
7299        * treat drag data receives as a drop.
7300        */
7301       set_status_pending (context, 0);
7302       set_dest_row (context, model, path,
7303                     path_down_mode, tree_view->priv->empty_view_drop,
7304                     drop_append_mode);
7305     }
7306
7307   if (path)
7308     gtk_tree_path_free (path);
7309
7310   /* Unset this thing */
7311   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7312                                    NULL,
7313                                    GTK_TREE_VIEW_DROP_BEFORE);
7314
7315   if (target != GDK_NONE)
7316     {
7317       gtk_drag_get_data (widget, context, target, time);
7318       return TRUE;
7319     }
7320   else
7321     return FALSE;
7322 }
7323
7324 static void
7325 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7326                                   GdkDragContext   *context,
7327                                   /* coordinates relative to the widget */
7328                                   gint              x,
7329                                   gint              y,
7330                                   GtkSelectionData *selection_data,
7331                                   guint             info,
7332                                   guint             time)
7333 {
7334   GtkTreePath *path;
7335   TreeViewDragInfo *di;
7336   gboolean accepted = FALSE;
7337   GtkTreeModel *model;
7338   GtkTreeView *tree_view;
7339   GtkTreePath *dest_row;
7340   GdkDragAction suggested_action;
7341   gboolean path_down_mode;
7342   gboolean drop_append_mode;
7343
7344   tree_view = GTK_TREE_VIEW (widget);
7345
7346   model = gtk_tree_view_get_model (tree_view);
7347
7348   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7349     return;
7350
7351   di = get_info (tree_view);
7352
7353   if (di == NULL)
7354     return;
7355
7356   suggested_action = get_status_pending (context);
7357
7358   if (suggested_action)
7359     {
7360       /* We are getting this data due to a request in drag_motion,
7361        * rather than due to a request in drag_drop, so we are just
7362        * supposed to call drag_status, not actually paste in the
7363        * data.
7364        */
7365       path = get_logical_dest_row (tree_view, &path_down_mode,
7366                                    &drop_append_mode);
7367
7368       if (path == NULL)
7369         suggested_action = 0;
7370       else if (path_down_mode)
7371         gtk_tree_path_down (path);
7372
7373       if (suggested_action)
7374         {
7375           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7376                                                      path,
7377                                                      selection_data))
7378             {
7379               if (path_down_mode)
7380                 {
7381                   path_down_mode = FALSE;
7382                   gtk_tree_path_up (path);
7383
7384                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7385                                                              path,
7386                                                              selection_data))
7387                     suggested_action = 0;
7388                 }
7389               else
7390                 suggested_action = 0;
7391             }
7392         }
7393
7394       gdk_drag_status (context, suggested_action, time);
7395
7396       if (path)
7397         gtk_tree_path_free (path);
7398
7399       /* If you can't drop, remove user drop indicator until the next motion */
7400       if (suggested_action == 0)
7401         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7402                                          NULL,
7403                                          GTK_TREE_VIEW_DROP_BEFORE);
7404
7405       return;
7406     }
7407
7408   dest_row = get_dest_row (context, &path_down_mode);
7409
7410   if (dest_row == NULL)
7411     return;
7412
7413   if (selection_data->length >= 0)
7414     {
7415       if (path_down_mode)
7416         {
7417           gtk_tree_path_down (dest_row);
7418           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7419                                                      dest_row, selection_data))
7420             gtk_tree_path_up (dest_row);
7421         }
7422     }
7423
7424   if (selection_data->length >= 0)
7425     {
7426       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7427                                                  dest_row,
7428                                                  selection_data))
7429         accepted = TRUE;
7430     }
7431
7432   gtk_drag_finish (context,
7433                    accepted,
7434                    (context->action == GDK_ACTION_MOVE),
7435                    time);
7436
7437   if (gtk_tree_path_get_depth (dest_row) == 1
7438       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7439     {
7440       /* special special case drag to "0", scroll to first item */
7441       if (!tree_view->priv->scroll_to_path)
7442         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7443     }
7444
7445   gtk_tree_path_free (dest_row);
7446
7447   /* drop dest_row */
7448   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7449 }
7450
7451
7452
7453 /* GtkContainer Methods
7454  */
7455
7456
7457 static void
7458 gtk_tree_view_remove (GtkContainer *container,
7459                       GtkWidget    *widget)
7460 {
7461   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7462   GtkTreeViewChild *child = NULL;
7463   GList *tmp_list;
7464
7465   tmp_list = tree_view->priv->children;
7466   while (tmp_list)
7467     {
7468       child = tmp_list->data;
7469       if (child->widget == widget)
7470         {
7471           gtk_widget_unparent (widget);
7472
7473           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7474           g_list_free_1 (tmp_list);
7475           g_slice_free (GtkTreeViewChild, child);
7476           return;
7477         }
7478
7479       tmp_list = tmp_list->next;
7480     }
7481
7482   tmp_list = tree_view->priv->columns;
7483
7484   while (tmp_list)
7485     {
7486       GtkTreeViewColumn *column;
7487       column = tmp_list->data;
7488       if (column->button == widget)
7489         {
7490           gtk_widget_unparent (widget);
7491           return;
7492         }
7493       tmp_list = tmp_list->next;
7494     }
7495 }
7496
7497 static void
7498 gtk_tree_view_forall (GtkContainer *container,
7499                       gboolean      include_internals,
7500                       GtkCallback   callback,
7501                       gpointer      callback_data)
7502 {
7503   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7504   GtkTreeViewChild *child = NULL;
7505   GtkTreeViewColumn *column;
7506   GList *tmp_list;
7507
7508   tmp_list = tree_view->priv->children;
7509   while (tmp_list)
7510     {
7511       child = tmp_list->data;
7512       tmp_list = tmp_list->next;
7513
7514       (* callback) (child->widget, callback_data);
7515     }
7516   if (include_internals == FALSE)
7517     return;
7518
7519   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7520     {
7521       column = tmp_list->data;
7522
7523       if (column->button)
7524         (* callback) (column->button, callback_data);
7525     }
7526 }
7527
7528 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7529  * cells. If so we draw one big row-spanning focus rectangle.
7530  */
7531 static gboolean
7532 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7533 {
7534   GList *list;
7535
7536   for (list = tree_view->priv->columns; list; list = list->next)
7537     {
7538       if (!((GtkTreeViewColumn *)list->data)->visible)
7539         continue;
7540       if (_gtk_tree_view_column_count_special_cells (list->data))
7541         return TRUE;
7542     }
7543
7544   return FALSE;
7545 }
7546
7547 static void
7548 column_sizing_notify (GObject    *object,
7549                       GParamSpec *pspec,
7550                       gpointer    data)
7551 {
7552   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7553
7554   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7555     /* disable fixed height mode */
7556     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7557 }
7558
7559 /**
7560  * gtk_tree_view_set_fixed_height_mode:
7561  * @tree_view: a #GtkTreeView
7562  * @enable: %TRUE to enable fixed height mode
7563  *
7564  * Enables or disables the fixed height mode of @tree_view.
7565  * Fixed height mode speeds up #GtkTreeView by assuming that all
7566  * rows have the same height.
7567  * Only enable this option if all rows are the same height and all
7568  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7569  *
7570  * Since: 2.6
7571  **/
7572 void
7573 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7574                                      gboolean     enable)
7575 {
7576   GList *l;
7577
7578   enable = enable != FALSE;
7579
7580   if (enable == tree_view->priv->fixed_height_mode)
7581     return;
7582
7583   if (!enable)
7584     {
7585       tree_view->priv->fixed_height_mode = 0;
7586       tree_view->priv->fixed_height = -1;
7587
7588       /* force a revalidation */
7589       install_presize_handler (tree_view);
7590     }
7591   else
7592     {
7593       /* make sure all columns are of type FIXED */
7594       for (l = tree_view->priv->columns; l; l = l->next)
7595         {
7596           GtkTreeViewColumn *c = l->data;
7597
7598           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7599         }
7600
7601       /* yes, we really have to do this is in a separate loop */
7602       for (l = tree_view->priv->columns; l; l = l->next)
7603         g_signal_connect (l->data, "notify::sizing",
7604                           G_CALLBACK (column_sizing_notify), tree_view);
7605
7606       tree_view->priv->fixed_height_mode = 1;
7607       tree_view->priv->fixed_height = -1;
7608
7609       if (tree_view->priv->tree)
7610         initialize_fixed_height_mode (tree_view);
7611     }
7612
7613   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7614 }
7615
7616 /**
7617  * gtk_tree_view_get_fixed_height_mode:
7618  * @tree_view: a #GtkTreeView
7619  *
7620  * Returns whether fixed height mode is turned on for @tree_view.
7621  *
7622  * Return value: %TRUE if @tree_view is in fixed height mode
7623  *
7624  * Since: 2.6
7625  **/
7626 gboolean
7627 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7628 {
7629   return tree_view->priv->fixed_height_mode;
7630 }
7631
7632 /* Returns TRUE if the focus is within the headers, after the focus operation is
7633  * done
7634  */
7635 static gboolean
7636 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7637                             GtkDirectionType  dir,
7638                             gboolean          clamp_column_visible)
7639 {
7640   GtkWidget *focus_child;
7641
7642   GList *last_column, *first_column;
7643   GList *tmp_list;
7644   gboolean rtl;
7645
7646   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7647     return FALSE;
7648
7649   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7650
7651   first_column = tree_view->priv->columns;
7652   while (first_column)
7653     {
7654       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7655           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7656           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7657            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7658         break;
7659       first_column = first_column->next;
7660     }
7661
7662   /* No headers are visible, or are focusable.  We can't focus in or out.
7663    */
7664   if (first_column == NULL)
7665     return FALSE;
7666
7667   last_column = g_list_last (tree_view->priv->columns);
7668   while (last_column)
7669     {
7670       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7671           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7672           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7673            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7674         break;
7675       last_column = last_column->prev;
7676     }
7677
7678
7679   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7680
7681   switch (dir)
7682     {
7683     case GTK_DIR_TAB_BACKWARD:
7684     case GTK_DIR_TAB_FORWARD:
7685     case GTK_DIR_UP:
7686     case GTK_DIR_DOWN:
7687       if (focus_child == NULL)
7688         {
7689           if (tree_view->priv->focus_column != NULL)
7690             focus_child = tree_view->priv->focus_column->button;
7691           else
7692             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7693           gtk_widget_grab_focus (focus_child);
7694           break;
7695         }
7696       return FALSE;
7697
7698     case GTK_DIR_LEFT:
7699     case GTK_DIR_RIGHT:
7700       if (focus_child == NULL)
7701         {
7702           if (tree_view->priv->focus_column != NULL)
7703             focus_child = tree_view->priv->focus_column->button;
7704           else if (dir == GTK_DIR_LEFT)
7705             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7706           else
7707             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7708           gtk_widget_grab_focus (focus_child);
7709           break;
7710         }
7711
7712       if (gtk_widget_child_focus (focus_child, dir))
7713         {
7714           /* The focus moves inside the button. */
7715           /* This is probably a great example of bad UI */
7716           break;
7717         }
7718
7719       /* We need to move the focus among the row of buttons. */
7720       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7721         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7722           break;
7723
7724       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7725           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7726         {
7727           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7728           break;
7729         }
7730
7731       while (tmp_list)
7732         {
7733           GtkTreeViewColumn *column;
7734
7735           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7736             tmp_list = tmp_list->next;
7737           else
7738             tmp_list = tmp_list->prev;
7739
7740           if (tmp_list == NULL)
7741             {
7742               g_warning ("Internal button not found");
7743               break;
7744             }
7745           column = tmp_list->data;
7746           if (column->button &&
7747               column->visible &&
7748               GTK_WIDGET_CAN_FOCUS (column->button))
7749             {
7750               focus_child = column->button;
7751               gtk_widget_grab_focus (column->button);
7752               break;
7753             }
7754         }
7755       break;
7756     default:
7757       g_assert_not_reached ();
7758       break;
7759     }
7760
7761   /* if focus child is non-null, we assume it's been set to the current focus child
7762    */
7763   if (focus_child)
7764     {
7765       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7766         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7767           {
7768             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7769             break;
7770           }
7771
7772       if (clamp_column_visible)
7773         {
7774           gtk_tree_view_clamp_column_visible (tree_view,
7775                                               tree_view->priv->focus_column,
7776                                               FALSE);
7777         }
7778     }
7779
7780   return (focus_child != NULL);
7781 }
7782
7783 /* This function returns in 'path' the first focusable path, if the given path
7784  * is already focusable, it's the returned one.
7785  */
7786 static gboolean
7787 search_first_focusable_path (GtkTreeView  *tree_view,
7788                              GtkTreePath **path,
7789                              gboolean      search_forward,
7790                              GtkRBTree   **new_tree,
7791                              GtkRBNode   **new_node)
7792 {
7793   GtkRBTree *tree = NULL;
7794   GtkRBNode *node = NULL;
7795
7796   if (!path || !*path)
7797     return FALSE;
7798
7799   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7800
7801   if (!tree || !node)
7802     return FALSE;
7803
7804   while (node && row_is_separator (tree_view, NULL, *path))
7805     {
7806       if (search_forward)
7807         _gtk_rbtree_next_full (tree, node, &tree, &node);
7808       else
7809         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7810
7811       if (*path)
7812         gtk_tree_path_free (*path);
7813
7814       if (node)
7815         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7816       else
7817         *path = NULL;
7818     }
7819
7820   if (new_tree)
7821     *new_tree = tree;
7822
7823   if (new_node)
7824     *new_node = node;
7825
7826   return (*path != NULL);
7827 }
7828
7829 static gint
7830 gtk_tree_view_focus (GtkWidget        *widget,
7831                      GtkDirectionType  direction)
7832 {
7833   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7834   GtkContainer *container = GTK_CONTAINER (widget);
7835   GtkWidget *focus_child;
7836
7837   if (!GTK_WIDGET_IS_SENSITIVE (container))
7838     return FALSE;
7839
7840   focus_child = container->focus_child;
7841
7842   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7843   /* Case 1.  Headers currently have focus. */
7844   if (focus_child)
7845     {
7846       switch (direction)
7847         {
7848         case GTK_DIR_LEFT:
7849         case GTK_DIR_RIGHT:
7850           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7851           return TRUE;
7852         case GTK_DIR_TAB_BACKWARD:
7853         case GTK_DIR_UP:
7854           return FALSE;
7855         case GTK_DIR_TAB_FORWARD:
7856         case GTK_DIR_DOWN:
7857           gtk_widget_grab_focus (widget);
7858           return TRUE;
7859         default:
7860           g_assert_not_reached ();
7861           return FALSE;
7862         }
7863     }
7864
7865   /* Case 2. We don't have focus at all. */
7866   if (!GTK_WIDGET_HAS_FOCUS (container))
7867     {
7868       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7869         gtk_widget_grab_focus (widget);
7870       return TRUE;
7871     }
7872
7873   /* Case 3. We have focus already. */
7874   if (direction == GTK_DIR_TAB_BACKWARD)
7875     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7876   else if (direction == GTK_DIR_TAB_FORWARD)
7877     return FALSE;
7878
7879   /* Other directions caught by the keybindings */
7880   gtk_widget_grab_focus (widget);
7881   return TRUE;
7882 }
7883
7884 static void
7885 gtk_tree_view_grab_focus (GtkWidget *widget)
7886 {
7887   (* GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus) (widget);
7888
7889   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7890 }
7891
7892 static void
7893 gtk_tree_view_style_set (GtkWidget *widget,
7894                          GtkStyle *previous_style)
7895 {
7896   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7897   GList *list;
7898   GtkTreeViewColumn *column;
7899
7900   if (GTK_WIDGET_REALIZED (widget))
7901     {
7902       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7903       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7904       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7905
7906       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7907       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7908     }
7909
7910   gtk_widget_style_get (widget,
7911                         "expander-size", &tree_view->priv->expander_size,
7912                         NULL);
7913   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7914
7915   for (list = tree_view->priv->columns; list; list = list->next)
7916     {
7917       column = list->data;
7918       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7919     }
7920
7921   tree_view->priv->fixed_height = -1;
7922   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7923
7924   gtk_widget_queue_resize (widget);
7925 }
7926
7927
7928 static void
7929 gtk_tree_view_set_focus_child (GtkContainer *container,
7930                                GtkWidget    *child)
7931 {
7932   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7933   GList *list;
7934
7935   for (list = tree_view->priv->columns; list; list = list->next)
7936     {
7937       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7938         {
7939           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7940           break;
7941         }
7942     }
7943
7944   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7945 }
7946
7947 static void
7948 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7949                                GtkAdjustment *hadj,
7950                                GtkAdjustment *vadj)
7951 {
7952   gboolean need_adjust = FALSE;
7953
7954   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
7955
7956   if (hadj)
7957     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
7958   else
7959     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7960   if (vadj)
7961     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
7962   else
7963     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7964
7965   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
7966     {
7967       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
7968                                             gtk_tree_view_adjustment_changed,
7969                                             tree_view);
7970       g_object_unref (tree_view->priv->hadjustment);
7971     }
7972
7973   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
7974     {
7975       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
7976                                             gtk_tree_view_adjustment_changed,
7977                                             tree_view);
7978       g_object_unref (tree_view->priv->vadjustment);
7979     }
7980
7981   if (tree_view->priv->hadjustment != hadj)
7982     {
7983       tree_view->priv->hadjustment = hadj;
7984       g_object_ref_sink (tree_view->priv->hadjustment);
7985
7986       g_signal_connect (tree_view->priv->hadjustment, "value_changed",
7987                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7988                         tree_view);
7989       need_adjust = TRUE;
7990     }
7991
7992   if (tree_view->priv->vadjustment != vadj)
7993     {
7994       tree_view->priv->vadjustment = vadj;
7995       g_object_ref_sink (tree_view->priv->vadjustment);
7996
7997       g_signal_connect (tree_view->priv->vadjustment, "value_changed",
7998                         G_CALLBACK (gtk_tree_view_adjustment_changed),
7999                         tree_view);
8000       need_adjust = TRUE;
8001     }
8002
8003   if (need_adjust)
8004     gtk_tree_view_adjustment_changed (NULL, tree_view);
8005 }
8006
8007
8008 static gboolean
8009 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8010                                 GtkMovementStep    step,
8011                                 gint               count)
8012 {
8013   GdkModifierType state;
8014
8015   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8016   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8017                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8018                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8019                         step == GTK_MOVEMENT_PAGES ||
8020                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8021
8022   if (tree_view->priv->tree == NULL)
8023     return FALSE;
8024   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8025     return FALSE;
8026
8027   gtk_tree_view_stop_editing (tree_view, FALSE);
8028   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8029   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8030
8031   if (gtk_get_current_event_state (&state))
8032     {
8033       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8034         tree_view->priv->ctrl_pressed = TRUE;
8035       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8036         tree_view->priv->shift_pressed = TRUE;
8037     }
8038   /* else we assume not pressed */
8039
8040   switch (step)
8041     {
8042       /* currently we make no distinction.  When we go bi-di, we need to */
8043     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8044     case GTK_MOVEMENT_VISUAL_POSITIONS:
8045       gtk_tree_view_move_cursor_left_right (tree_view, count);
8046       break;
8047     case GTK_MOVEMENT_DISPLAY_LINES:
8048       gtk_tree_view_move_cursor_up_down (tree_view, count);
8049       break;
8050     case GTK_MOVEMENT_PAGES:
8051       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8052       break;
8053     case GTK_MOVEMENT_BUFFER_ENDS:
8054       gtk_tree_view_move_cursor_start_end (tree_view, count);
8055       break;
8056     default:
8057       g_assert_not_reached ();
8058     }
8059
8060   tree_view->priv->ctrl_pressed = FALSE;
8061   tree_view->priv->shift_pressed = FALSE;
8062
8063   return TRUE;
8064 }
8065
8066 static void
8067 gtk_tree_view_put (GtkTreeView *tree_view,
8068                    GtkWidget   *child_widget,
8069                    /* in bin_window coordinates */
8070                    gint         x,
8071                    gint         y,
8072                    gint         width,
8073                    gint         height)
8074 {
8075   GtkTreeViewChild *child;
8076
8077   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8078   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8079
8080   child = g_slice_new (GtkTreeViewChild);
8081
8082   child->widget = child_widget;
8083   child->x = x;
8084   child->y = y;
8085   child->width = width;
8086   child->height = height;
8087
8088   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8089
8090   if (GTK_WIDGET_REALIZED (tree_view))
8091     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8092
8093   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8094 }
8095
8096 void
8097 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8098                                   GtkWidget   *widget,
8099                                   /* in tree coordinates */
8100                                   gint         x,
8101                                   gint         y,
8102                                   gint         width,
8103                                   gint         height)
8104 {
8105   GtkTreeViewChild *child = NULL;
8106   GList *list;
8107   GdkRectangle allocation;
8108
8109   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8110   g_return_if_fail (GTK_IS_WIDGET (widget));
8111
8112   for (list = tree_view->priv->children; list; list = list->next)
8113     {
8114       if (((GtkTreeViewChild *)list->data)->widget == widget)
8115         {
8116           child = list->data;
8117           break;
8118         }
8119     }
8120   if (child == NULL)
8121     return;
8122
8123   allocation.x = child->x = x;
8124   allocation.y = child->y = y;
8125   allocation.width = child->width = width;
8126   allocation.height = child->height = height;
8127
8128   if (GTK_WIDGET_REALIZED (widget))
8129     gtk_widget_size_allocate (widget, &allocation);
8130 }
8131
8132
8133 /* TreeModel Callbacks
8134  */
8135
8136 static void
8137 gtk_tree_view_row_changed (GtkTreeModel *model,
8138                            GtkTreePath  *path,
8139                            GtkTreeIter  *iter,
8140                            gpointer      data)
8141 {
8142   GtkTreeView *tree_view = (GtkTreeView *)data;
8143   GtkRBTree *tree;
8144   GtkRBNode *node;
8145   gboolean free_path = FALSE;
8146   GList *list;
8147   GtkTreePath *cursor_path;
8148
8149   g_return_if_fail (path != NULL || iter != NULL);
8150
8151   if (tree_view->priv->cursor != NULL)
8152     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8153   else
8154     cursor_path = NULL;
8155
8156   if (tree_view->priv->edited_column &&
8157       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8158     gtk_tree_view_stop_editing (tree_view, TRUE);
8159
8160   if (cursor_path != NULL)
8161     gtk_tree_path_free (cursor_path);
8162
8163   if (path == NULL)
8164     {
8165       path = gtk_tree_model_get_path (model, iter);
8166       free_path = TRUE;
8167     }
8168   else if (iter == NULL)
8169     gtk_tree_model_get_iter (model, iter, path);
8170
8171   if (_gtk_tree_view_find_node (tree_view,
8172                                 path,
8173                                 &tree,
8174                                 &node))
8175     /* We aren't actually showing the node */
8176     goto done;
8177
8178   if (tree == NULL)
8179     goto done;
8180
8181   if (tree_view->priv->fixed_height_mode
8182       && tree_view->priv->fixed_height >= 0)
8183     {
8184       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8185       if (GTK_WIDGET_REALIZED (tree_view))
8186         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8187     }
8188   else
8189     {
8190       _gtk_rbtree_node_mark_invalid (tree, node);
8191       for (list = tree_view->priv->columns; list; list = list->next)
8192         {
8193           GtkTreeViewColumn *column;
8194
8195           column = list->data;
8196           if (! column->visible)
8197             continue;
8198
8199           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8200             {
8201               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8202             }
8203         }
8204     }
8205
8206  done:
8207   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8208     install_presize_handler (tree_view);
8209   if (free_path)
8210     gtk_tree_path_free (path);
8211 }
8212
8213 static void
8214 gtk_tree_view_row_inserted (GtkTreeModel *model,
8215                             GtkTreePath  *path,
8216                             GtkTreeIter  *iter,
8217                             gpointer      data)
8218 {
8219   GtkTreeView *tree_view = (GtkTreeView *) data;
8220   gint *indices;
8221   GtkRBTree *tmptree, *tree;
8222   GtkRBNode *tmpnode = NULL;
8223   gint depth;
8224   gint i = 0;
8225   gint height;
8226   gboolean free_path = FALSE;
8227   gboolean node_visible = TRUE;
8228
8229   g_return_if_fail (path != NULL || iter != NULL);
8230
8231   if (tree_view->priv->fixed_height_mode
8232       && tree_view->priv->fixed_height >= 0)
8233     height = tree_view->priv->fixed_height;
8234   else
8235     height = 0;
8236
8237   if (path == NULL)
8238     {
8239       path = gtk_tree_model_get_path (model, iter);
8240       free_path = TRUE;
8241     }
8242   else if (iter == NULL)
8243     gtk_tree_model_get_iter (model, iter, path);
8244
8245   if (tree_view->priv->tree == NULL)
8246     tree_view->priv->tree = _gtk_rbtree_new ();
8247
8248   tmptree = tree = tree_view->priv->tree;
8249
8250   /* Update all row-references */
8251   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8252   depth = gtk_tree_path_get_depth (path);
8253   indices = gtk_tree_path_get_indices (path);
8254
8255   /* First, find the parent tree */
8256   while (i < depth - 1)
8257     {
8258       if (tmptree == NULL)
8259         {
8260           /* We aren't showing the node */
8261           node_visible = FALSE;
8262           goto done;
8263         }
8264
8265       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8266       if (tmpnode == NULL)
8267         {
8268           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8269                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8270                      "before the parent was inserted.");
8271           goto done;
8272         }
8273       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8274         {
8275           /* FIXME enforce correct behavior on model, probably */
8276           /* In theory, the model should have emitted has_child_toggled here.  We
8277            * try to catch it anyway, just to be safe, in case the model hasn't.
8278            */
8279           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8280                                                            tree,
8281                                                            tmpnode);
8282           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8283           gtk_tree_path_free (tmppath);
8284           goto done;
8285         }
8286
8287       tmptree = tmpnode->children;
8288       tree = tmptree;
8289       i++;
8290     }
8291
8292   if (tree == NULL)
8293     {
8294       node_visible = FALSE;
8295       goto done;
8296     }
8297
8298   /* ref the node */
8299   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8300   if (indices[depth - 1] == 0)
8301     {
8302       tmpnode = _gtk_rbtree_find_count (tree, 1);
8303       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8304     }
8305   else
8306     {
8307       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8308       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8309     }
8310
8311  done:
8312   if (height > 0)
8313     {
8314       if (tree)
8315         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8316
8317       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8318         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8319       else
8320         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8321     }
8322   else
8323     install_presize_handler (tree_view);
8324   if (free_path)
8325     gtk_tree_path_free (path);
8326 }
8327
8328 static void
8329 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8330                                      GtkTreePath  *path,
8331                                      GtkTreeIter  *iter,
8332                                      gpointer      data)
8333 {
8334   GtkTreeView *tree_view = (GtkTreeView *)data;
8335   GtkTreeIter real_iter;
8336   gboolean has_child;
8337   GtkRBTree *tree;
8338   GtkRBNode *node;
8339   gboolean free_path = FALSE;
8340
8341   g_return_if_fail (path != NULL || iter != NULL);
8342
8343   if (iter)
8344     real_iter = *iter;
8345
8346   if (path == NULL)
8347     {
8348       path = gtk_tree_model_get_path (model, iter);
8349       free_path = TRUE;
8350     }
8351   else if (iter == NULL)
8352     gtk_tree_model_get_iter (model, &real_iter, path);
8353
8354   if (_gtk_tree_view_find_node (tree_view,
8355                                 path,
8356                                 &tree,
8357                                 &node))
8358     /* We aren't actually showing the node */
8359     goto done;
8360
8361   if (tree == NULL)
8362     goto done;
8363
8364   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8365   /* Sanity check.
8366    */
8367   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8368     goto done;
8369
8370   if (has_child)
8371     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8372   else
8373     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8374
8375   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8376     {
8377       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8378       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8379         {
8380           GList *list;
8381
8382           for (list = tree_view->priv->columns; list; list = list->next)
8383             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8384               {
8385                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8386                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8387                 break;
8388               }
8389         }
8390       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8391     }
8392   else
8393     {
8394       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8395     }
8396
8397  done:
8398   if (free_path)
8399     gtk_tree_path_free (path);
8400 }
8401
8402 static void
8403 count_children_helper (GtkRBTree *tree,
8404                        GtkRBNode *node,
8405                        gpointer   data)
8406 {
8407   if (node->children)
8408     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8409   (*((gint *)data))++;
8410 }
8411
8412 static void
8413 check_selection_helper (GtkRBTree *tree,
8414                         GtkRBNode *node,
8415                         gpointer   data)
8416 {
8417   gint *value = (gint *)data;
8418
8419   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8420
8421   if (node->children && !*value)
8422     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8423 }
8424
8425 static void
8426 gtk_tree_view_row_deleted (GtkTreeModel *model,
8427                            GtkTreePath  *path,
8428                            gpointer      data)
8429 {
8430   GtkTreeView *tree_view = (GtkTreeView *)data;
8431   GtkRBTree *tree;
8432   GtkRBNode *node;
8433   GList *list;
8434   gint selection_changed = FALSE;
8435
8436   g_return_if_fail (path != NULL);
8437
8438   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8439
8440   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8441     return;
8442
8443   if (tree == NULL)
8444     return;
8445
8446   /* check if the selection has been changed */
8447   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8448                         check_selection_helper, &selection_changed);
8449
8450   for (list = tree_view->priv->columns; list; list = list->next)
8451     if (((GtkTreeViewColumn *)list->data)->visible &&
8452         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8453       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8454
8455   /* Ensure we don't have a dangling pointer to a dead node */
8456   ensure_unprelighted (tree_view);
8457
8458   /* Cancel editting if we've started */
8459   gtk_tree_view_stop_editing (tree_view, TRUE);
8460
8461   /* If we have a node expanded/collapsed timeout, remove it */
8462   remove_expand_collapse_timeout (tree_view);
8463
8464   if (tree_view->priv->destroy_count_func)
8465     {
8466       gint child_count = 0;
8467       if (node->children)
8468         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8469       (* tree_view->priv->destroy_count_func) (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8470     }
8471
8472   if (tree->root->count == 1)
8473     {
8474       if (tree_view->priv->tree == tree)
8475         tree_view->priv->tree = NULL;
8476
8477       _gtk_rbtree_remove (tree);
8478     }
8479   else
8480     {
8481       _gtk_rbtree_remove_node (tree, node);
8482     }
8483
8484   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8485     {
8486       gtk_tree_row_reference_free (tree_view->priv->top_row);
8487       tree_view->priv->top_row = NULL;
8488     }
8489
8490   install_scroll_sync_handler (tree_view);
8491
8492   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8493
8494   if (selection_changed)
8495     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8496 }
8497
8498 static void
8499 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8500                               GtkTreePath  *parent,
8501                               GtkTreeIter  *iter,
8502                               gint         *new_order,
8503                               gpointer      data)
8504 {
8505   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8506   GtkRBTree *tree;
8507   GtkRBNode *node;
8508   gint len;
8509
8510   len = gtk_tree_model_iter_n_children (model, iter);
8511
8512   if (len < 2)
8513     return;
8514
8515   gtk_tree_row_reference_reordered (G_OBJECT (data),
8516                                     parent,
8517                                     iter,
8518                                     new_order);
8519
8520   if (_gtk_tree_view_find_node (tree_view,
8521                                 parent,
8522                                 &tree,
8523                                 &node))
8524     return;
8525
8526   /* We need to special case the parent path */
8527   if (tree == NULL)
8528     tree = tree_view->priv->tree;
8529   else
8530     tree = node->children;
8531
8532   if (tree == NULL)
8533     return;
8534
8535   if (tree_view->priv->edited_column)
8536     gtk_tree_view_stop_editing (tree_view, TRUE);
8537
8538   /* we need to be unprelighted */
8539   ensure_unprelighted (tree_view);
8540
8541   /* clear the timeout */
8542   cancel_arrow_animation (tree_view);
8543
8544   _gtk_rbtree_reorder (tree, new_order, len);
8545
8546   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8547
8548   gtk_tree_view_dy_to_top_row (tree_view);
8549 }
8550
8551
8552 /* Internal tree functions
8553  */
8554
8555
8556 static void
8557 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8558                                      GtkRBTree         *tree,
8559                                      GtkTreeViewColumn *column,
8560                                      gint              *x1,
8561                                      gint              *x2)
8562 {
8563   GtkTreeViewColumn *tmp_column = NULL;
8564   gint total_width;
8565   GList *list;
8566   gboolean rtl;
8567
8568   if (x1)
8569     *x1 = 0;
8570
8571   if (x2)
8572     *x2 = 0;
8573
8574   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8575
8576   total_width = 0;
8577   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8578        list;
8579        list = (rtl ? list->prev : list->next))
8580     {
8581       tmp_column = list->data;
8582
8583       if (tmp_column == column)
8584         break;
8585
8586       if (tmp_column->visible)
8587         total_width += tmp_column->width;
8588     }
8589
8590   if (tmp_column != column)
8591     {
8592       g_warning (G_STRLOC": passed-in column isn't in the tree");
8593       return;
8594     }
8595
8596   if (x1)
8597     *x1 = total_width;
8598
8599   if (x2)
8600     {
8601       if (column->visible)
8602         *x2 = total_width + column->width;
8603       else
8604         *x2 = total_width; /* width of 0 */
8605     }
8606 }
8607 static void
8608 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8609                                 GtkRBTree   *tree,
8610                                 gint        *x1,
8611                                 gint        *x2)
8612 {
8613   gint x_offset = 0;
8614   GList *list;
8615   GtkTreeViewColumn *tmp_column = NULL;
8616   gint total_width;
8617   gboolean indent_expanders;
8618   gboolean rtl;
8619
8620   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8621
8622   total_width = 0;
8623   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8624        list;
8625        list = (rtl ? list->prev : list->next))
8626     {
8627       tmp_column = list->data;
8628
8629       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8630         {
8631           if (rtl)
8632             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8633           else
8634             x_offset = total_width;
8635           break;
8636         }
8637
8638       if (tmp_column->visible)
8639         total_width += tmp_column->width;
8640     }
8641
8642   gtk_widget_style_get (GTK_WIDGET (tree_view),
8643                         "indent-expanders", &indent_expanders,
8644                         NULL);
8645
8646   if (indent_expanders)
8647     {
8648       if (rtl)
8649         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8650       else
8651         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8652     }
8653
8654   *x1 = x_offset;
8655
8656   if (tmp_column && tmp_column->visible)
8657     /* +1 because x2 isn't included in the range. */
8658     *x2 = *x1 + tree_view->priv->expander_size + 1;
8659   else
8660     *x2 = *x1;
8661 }
8662
8663 static void
8664 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8665                           GtkRBTree   *tree,
8666                           GtkTreeIter *iter,
8667                           gint         depth,
8668                           gboolean     recurse)
8669 {
8670   GtkRBNode *temp = NULL;
8671   GtkTreePath *path = NULL;
8672   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8673
8674   do
8675     {
8676       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8677       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8678
8679       if (tree_view->priv->fixed_height > 0)
8680         {
8681           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8682             {
8683               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8684               _gtk_rbtree_node_mark_valid (tree, temp);
8685             }
8686         }
8687
8688       if (is_list)
8689         continue;
8690
8691       if (recurse)
8692         {
8693           GtkTreeIter child;
8694
8695           if (!path)
8696             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8697           else
8698             gtk_tree_path_next (path);
8699
8700           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8701             {
8702               gboolean expand;
8703
8704               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8705
8706               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8707                   && !expand)
8708                 {
8709                   temp->children = _gtk_rbtree_new ();
8710                   temp->children->parent_tree = tree;
8711                   temp->children->parent_node = temp;
8712                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8713                 }
8714             }
8715         }
8716
8717       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8718         {
8719           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8720             temp->flags ^= GTK_RBNODE_IS_PARENT;
8721         }
8722     }
8723   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8724
8725   if (path)
8726     gtk_tree_path_free (path);
8727 }
8728
8729 /* If height is non-NULL, then we set it to be the new height.  if it's all
8730  * dirty, then height is -1.  We know we'll remeasure dirty rows, anyways.
8731  */
8732 static gboolean
8733 gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
8734                                    GtkTreeIter *iter,
8735                                    gint         depth,
8736                                    gint        *height,
8737                                    GtkRBNode   *node)
8738 {
8739   GtkTreeViewColumn *column;
8740   GList *list;
8741   gboolean retval = FALSE;
8742   gint tmpheight;
8743   gint horizontal_separator;
8744
8745   gtk_widget_style_get (GTK_WIDGET (tree_view),
8746                         "horizontal-separator", &horizontal_separator,
8747                         NULL);
8748
8749   if (height)
8750     *height = -1;
8751
8752   for (list = tree_view->priv->columns; list; list = list->next)
8753     {
8754       gint width;
8755       column = list->data;
8756       if (column->dirty == TRUE)
8757         continue;
8758       if (height == NULL && column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
8759         continue;
8760       if (!column->visible)
8761         continue;
8762
8763       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
8764                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
8765                                                node->children?TRUE:FALSE);
8766
8767       if (height)
8768         {
8769           gtk_tree_view_column_cell_get_size (column,
8770                                               NULL, NULL, NULL,
8771                                               &width, &tmpheight);
8772           *height = MAX (*height, tmpheight);
8773         }
8774       else
8775         {
8776           gtk_tree_view_column_cell_get_size (column,
8777                                               NULL, NULL, NULL,
8778                                               &width, NULL);
8779         }
8780
8781       if (gtk_tree_view_is_expander_column (tree_view, column))
8782         {
8783           int tmp = 0;
8784
8785           tmp = horizontal_separator + width + (depth - 1) * tree_view->priv->level_indentation;
8786           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
8787             tmp += depth * tree_view->priv->expander_size;
8788
8789           if (tmp > column->requested_width)
8790             {
8791               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8792               retval = TRUE;
8793             }
8794         }
8795       else
8796         {
8797           if (horizontal_separator + width > column->requested_width)
8798             {
8799               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8800               retval = TRUE;
8801             }
8802         }
8803     }
8804
8805   return retval;
8806 }
8807
8808 static void
8809 gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
8810                               GtkRBTree   *tree,
8811                               GtkTreeIter *iter,
8812                               gint         depth)
8813 {
8814   GtkRBNode *temp = tree->root;
8815   GtkTreeViewColumn *column;
8816   GList *list;
8817   GtkTreeIter child;
8818   gboolean is_all_dirty;
8819
8820   TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
8821
8822   while (temp->left != tree->nil)
8823     temp = temp->left;
8824
8825   do
8826     {
8827       TREE_VIEW_INTERNAL_ASSERT_VOID (temp != NULL);
8828       is_all_dirty = TRUE;
8829       for (list = tree_view->priv->columns; list; list = list->next)
8830         {
8831           column = list->data;
8832           if (column->dirty == FALSE)
8833             {
8834               is_all_dirty = FALSE;
8835               break;
8836             }
8837         }
8838
8839       if (is_all_dirty)
8840         return;
8841
8842       gtk_tree_view_discover_dirty_iter (tree_view,
8843                                          iter,
8844                                          depth,
8845                                          NULL,
8846                                          temp);
8847       if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
8848           temp->children != NULL)
8849         gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
8850       temp = _gtk_rbtree_next (tree, temp);
8851     }
8852   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8853 }
8854
8855
8856 /* Make sure the node is visible vertically */
8857 static void
8858 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8859                                   GtkRBTree   *tree,
8860                                   GtkRBNode   *node)
8861 {
8862   gint node_dy, height;
8863   GtkTreePath *path = NULL;
8864
8865   if (!GTK_WIDGET_REALIZED (tree_view))
8866     return;
8867
8868   /* just return if the node is visible, avoiding a costly expose */
8869   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8870   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8871   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8872       && node_dy >= tree_view->priv->vadjustment->value
8873       && node_dy + height <= (tree_view->priv->vadjustment->value
8874                               + tree_view->priv->vadjustment->page_size))
8875     return;
8876
8877   path = _gtk_tree_view_find_path (tree_view, tree, node);
8878   if (path)
8879     {
8880       /* We process updates because we want to clear old selected items when we scroll.
8881        * if this is removed, we get a "selection streak" at the bottom. */
8882       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8883       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8884       gtk_tree_path_free (path);
8885     }
8886 }
8887
8888 static void
8889 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8890                                     GtkTreeViewColumn *column,
8891                                     gboolean           focus_to_cell)
8892 {
8893   gint x, width;
8894
8895   if (column == NULL)
8896     return;
8897
8898   x = column->button->allocation.x;
8899   width = column->button->allocation.width;
8900
8901   if (width > tree_view->priv->hadjustment->page_size)
8902     {
8903       /* The column is larger than the horizontal page size.  If the
8904        * column has cells which can be focussed individually, then we make
8905        * sure the cell which gets focus is fully visible (if even the
8906        * focus cell is bigger than the page size, we make sure the
8907        * left-hand side of the cell is visible).
8908        *
8909        * If the column does not have those so-called special cells, we
8910        * make sure the left-hand side of the column is visible.
8911        */
8912
8913       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8914         {
8915           GtkTreePath *cursor_path;
8916           GdkRectangle background_area, cell_area, focus_area;
8917
8918           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8919
8920           gtk_tree_view_get_cell_area (tree_view,
8921                                        cursor_path, column, &cell_area);
8922           gtk_tree_view_get_background_area (tree_view,
8923                                              cursor_path, column,
8924                                              &background_area);
8925
8926           gtk_tree_path_free (cursor_path);
8927
8928           _gtk_tree_view_column_get_focus_area (column,
8929                                                 &background_area,
8930                                                 &cell_area,
8931                                                 &focus_area);
8932
8933           x = focus_area.x;
8934           width = focus_area.width;
8935
8936           if (width < tree_view->priv->hadjustment->page_size)
8937             {
8938               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8939                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8940                                           x + width - tree_view->priv->hadjustment->page_size);
8941               else if (tree_view->priv->hadjustment->value > x)
8942                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8943             }
8944         }
8945
8946       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8947                                 CLAMP (x,
8948                                        tree_view->priv->hadjustment->lower,
8949                                        tree_view->priv->hadjustment->upper
8950                                        - tree_view->priv->hadjustment->page_size));
8951     }
8952   else
8953     {
8954       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8955           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8956                                     x + width - tree_view->priv->hadjustment->page_size);
8957       else if (tree_view->priv->hadjustment->value > x)
8958         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8959   }
8960 }
8961
8962 /* This function could be more efficient.  I'll optimize it if profiling seems
8963  * to imply that it is important */
8964 GtkTreePath *
8965 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8966                           GtkRBTree   *tree,
8967                           GtkRBNode   *node)
8968 {
8969   GtkTreePath *path;
8970   GtkRBTree *tmp_tree;
8971   GtkRBNode *tmp_node, *last;
8972   gint count;
8973
8974   path = gtk_tree_path_new ();
8975
8976   g_return_val_if_fail (node != NULL, path);
8977   g_return_val_if_fail (node != tree->nil, path);
8978
8979   count = 1 + node->left->count;
8980
8981   last = node;
8982   tmp_node = node->parent;
8983   tmp_tree = tree;
8984   while (tmp_tree)
8985     {
8986       while (tmp_node != tmp_tree->nil)
8987         {
8988           if (tmp_node->right == last)
8989             count += 1 + tmp_node->left->count;
8990           last = tmp_node;
8991           tmp_node = tmp_node->parent;
8992         }
8993       gtk_tree_path_prepend_index (path, count - 1);
8994       last = tmp_tree->parent_node;
8995       tmp_tree = tmp_tree->parent_tree;
8996       if (last)
8997         {
8998           count = 1 + last->left->count;
8999           tmp_node = last->parent;
9000         }
9001     }
9002   return path;
9003 }
9004
9005 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
9006  * invalid (ie. points to a node that's not in the tree), *tree and *node are
9007  * both set to NULL.
9008  */
9009 gboolean
9010 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
9011                           GtkTreePath  *path,
9012                           GtkRBTree   **tree,
9013                           GtkRBNode   **node)
9014 {
9015   GtkRBNode *tmpnode = NULL;
9016   GtkRBTree *tmptree = tree_view->priv->tree;
9017   gint *indices = gtk_tree_path_get_indices (path);
9018   gint depth = gtk_tree_path_get_depth (path);
9019   gint i = 0;
9020
9021   *node = NULL;
9022   *tree = NULL;
9023
9024   if (depth == 0 || tmptree == NULL)
9025     return FALSE;
9026   do
9027     {
9028       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9029       ++i;
9030       if (tmpnode == NULL)
9031         {
9032           *tree = NULL;
9033           *node = NULL;
9034           return FALSE;
9035         }
9036       if (i >= depth)
9037         {
9038           *tree = tmptree;
9039           *node = tmpnode;
9040           return FALSE;
9041         }
9042       *tree = tmptree;
9043       *node = tmpnode;
9044       tmptree = tmpnode->children;
9045       if (tmptree == NULL)
9046         return TRUE;
9047     }
9048   while (1);
9049 }
9050
9051 static gboolean
9052 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9053                                   GtkTreeViewColumn *column)
9054 {
9055   GList *list;
9056
9057   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9058     return FALSE;
9059
9060   if (tree_view->priv->expander_column != NULL)
9061     {
9062       if (tree_view->priv->expander_column == column)
9063         return TRUE;
9064       return FALSE;
9065     }
9066   else
9067     {
9068       for (list = tree_view->priv->columns;
9069            list;
9070            list = list->next)
9071         if (((GtkTreeViewColumn *)list->data)->visible)
9072           break;
9073       if (list && list->data == column)
9074         return TRUE;
9075     }
9076   return FALSE;
9077 }
9078
9079 static void
9080 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9081                                 guint           keyval,
9082                                 guint           modmask,
9083                                 gboolean        add_shifted_binding,
9084                                 GtkMovementStep step,
9085                                 gint            count)
9086 {
9087
9088   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9089                                 "move_cursor", 2,
9090                                 G_TYPE_ENUM, step,
9091                                 G_TYPE_INT, count);
9092
9093   if (add_shifted_binding)
9094     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9095                                   "move_cursor", 2,
9096                                   G_TYPE_ENUM, step,
9097                                   G_TYPE_INT, count);
9098
9099   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9100    return;
9101
9102   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9103                                 "move_cursor", 2,
9104                                 G_TYPE_ENUM, step,
9105                                 G_TYPE_INT, count);
9106
9107   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9108                                 "move_cursor", 2,
9109                                 G_TYPE_ENUM, step,
9110                                 G_TYPE_INT, count);
9111 }
9112
9113 static gint
9114 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9115                                  GtkTreeIter  *iter,
9116                                  GtkRBTree    *tree,
9117                                  GtkRBNode    *node)
9118 {
9119   gint retval = FALSE;
9120   do
9121     {
9122       g_return_val_if_fail (node != NULL, FALSE);
9123
9124       if (node->children)
9125         {
9126           GtkTreeIter child;
9127           GtkRBTree *new_tree;
9128           GtkRBNode *new_node;
9129
9130           new_tree = node->children;
9131           new_node = new_tree->root;
9132
9133           while (new_node && new_node->left != new_tree->nil)
9134             new_node = new_node->left;
9135
9136           if (!gtk_tree_model_iter_children (model, &child, iter))
9137             return FALSE;
9138
9139           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9140         }
9141
9142       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9143         retval = TRUE;
9144       gtk_tree_model_unref_node (model, iter);
9145       node = _gtk_rbtree_next (tree, node);
9146     }
9147   while (gtk_tree_model_iter_next (model, iter));
9148
9149   return retval;
9150 }
9151
9152 static gint
9153 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9154                                               GtkRBTree   *tree)
9155 {
9156   GtkTreeIter iter;
9157   GtkTreePath *path;
9158   GtkRBNode *node;
9159   gint retval;
9160
9161   if (!tree)
9162     return FALSE;
9163
9164   node = tree->root;
9165   while (node && node->left != tree->nil)
9166     node = node->left;
9167
9168   g_return_val_if_fail (node != NULL, FALSE);
9169   path = _gtk_tree_view_find_path (tree_view, tree, node);
9170   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9171                            &iter, path);
9172   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9173   gtk_tree_path_free (path);
9174
9175   return retval;
9176 }
9177
9178 static void
9179 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9180                                     GtkTreeViewColumn *column)
9181 {
9182   GtkTreeViewColumn *left_column;
9183   GtkTreeViewColumn *cur_column = NULL;
9184   GtkTreeViewColumnReorder *reorder;
9185   gboolean rtl;
9186   GList *tmp_list;
9187   gint left;
9188
9189   /* We want to precalculate the motion list such that we know what column slots
9190    * are available.
9191    */
9192   left_column = NULL;
9193   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9194
9195   /* First, identify all possible drop spots */
9196   if (rtl)
9197     tmp_list = g_list_last (tree_view->priv->columns);
9198   else
9199     tmp_list = g_list_first (tree_view->priv->columns);
9200
9201   while (tmp_list)
9202     {
9203       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9204       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9205
9206       if (cur_column->visible == FALSE)
9207         continue;
9208
9209       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9210       if (left_column != column && cur_column != column &&
9211           tree_view->priv->column_drop_func &&
9212           ! (* tree_view->priv->column_drop_func) (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9213         {
9214           left_column = cur_column;
9215           continue;
9216         }
9217       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9218       reorder->left_column = left_column;
9219       left_column = reorder->right_column = cur_column;
9220
9221       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9222     }
9223
9224   /* Add the last one */
9225   if (tree_view->priv->column_drop_func == NULL ||
9226       ((left_column != column) &&
9227        (* tree_view->priv->column_drop_func) (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9228     {
9229       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9230       reorder->left_column = left_column;
9231       reorder->right_column = NULL;
9232       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9233     }
9234
9235   /* We quickly check to see if it even makes sense to reorder columns. */
9236   /* If there is nothing that can be moved, then we return */
9237
9238   if (tree_view->priv->column_drag_info == NULL)
9239     return;
9240
9241   /* We know there are always 2 slots possbile, as you can always return column. */
9242   /* If that's all there is, return */
9243   if (tree_view->priv->column_drag_info->next == NULL ||
9244       (tree_view->priv->column_drag_info->next->next == NULL &&
9245        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9246        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9247     {
9248       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9249         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9250       g_list_free (tree_view->priv->column_drag_info);
9251       tree_view->priv->column_drag_info = NULL;
9252       return;
9253     }
9254   /* We fill in the ranges for the columns, now that we've isolated them */
9255   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9256
9257   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9258     {
9259       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9260
9261       reorder->left_align = left;
9262       if (tmp_list->next != NULL)
9263         {
9264           g_assert (tmp_list->next->data);
9265           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9266                                          reorder->right_column->button->allocation.width +
9267                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9268         }
9269       else
9270         {
9271           gint width;
9272
9273           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9274           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9275         }
9276     }
9277 }
9278
9279 void
9280 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9281                                   GtkTreeViewColumn *column)
9282 {
9283   GdkEvent *send_event;
9284   GtkAllocation allocation;
9285   gint x, y, width, height;
9286   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9287   GdkDisplay *display = gdk_screen_get_display (screen);
9288
9289   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9290   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9291
9292   gtk_tree_view_set_column_drag_info (tree_view, column);
9293
9294   if (tree_view->priv->column_drag_info == NULL)
9295     return;
9296
9297   if (tree_view->priv->drag_window == NULL)
9298     {
9299       GdkWindowAttr attributes;
9300       guint attributes_mask;
9301
9302       attributes.window_type = GDK_WINDOW_CHILD;
9303       attributes.wclass = GDK_INPUT_OUTPUT;
9304       attributes.x = column->button->allocation.x;
9305       attributes.y = 0;
9306       attributes.width = column->button->allocation.width;
9307       attributes.height = column->button->allocation.height;
9308       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9309       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9310       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9311       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9312
9313       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9314                                                      &attributes,
9315                                                      attributes_mask);
9316       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9317     }
9318
9319   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9320   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9321
9322   gtk_grab_remove (column->button);
9323
9324   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9325   send_event->crossing.send_event = TRUE;
9326   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9327   send_event->crossing.subwindow = NULL;
9328   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9329   send_event->crossing.time = GDK_CURRENT_TIME;
9330
9331   gtk_propagate_event (column->button, send_event);
9332   gdk_event_free (send_event);
9333
9334   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9335   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9336   send_event->button.send_event = TRUE;
9337   send_event->button.time = GDK_CURRENT_TIME;
9338   send_event->button.x = -1;
9339   send_event->button.y = -1;
9340   send_event->button.axes = NULL;
9341   send_event->button.state = 0;
9342   send_event->button.button = 1;
9343   send_event->button.device = gdk_display_get_core_pointer (display);
9344   send_event->button.x_root = 0;
9345   send_event->button.y_root = 0;
9346
9347   gtk_propagate_event (column->button, send_event);
9348   gdk_event_free (send_event);
9349
9350   /* Kids, don't try this at home */
9351   g_object_ref (column->button);
9352   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9353   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9354   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9355   g_object_unref (column->button);
9356
9357   tree_view->priv->drag_column_x = column->button->allocation.x;
9358   allocation = column->button->allocation;
9359   allocation.x = 0;
9360   gtk_widget_size_allocate (column->button, &allocation);
9361   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9362
9363   tree_view->priv->drag_column = column;
9364   gdk_window_show (tree_view->priv->drag_window);
9365
9366   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9367   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9368
9369   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9370   while (gtk_events_pending ())
9371     gtk_main_iteration ();
9372
9373   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9374   gdk_pointer_grab (tree_view->priv->drag_window,
9375                     FALSE,
9376                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9377                     NULL, NULL, GDK_CURRENT_TIME);
9378   gdk_keyboard_grab (tree_view->priv->drag_window,
9379                      FALSE,
9380                      GDK_CURRENT_TIME);
9381 }
9382
9383 static void
9384 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9385                                 GtkRBTree          *tree,
9386                                 GtkRBNode          *node,
9387                                 const GdkRectangle *clip_rect)
9388 {
9389   GdkRectangle rect;
9390
9391   if (!GTK_WIDGET_REALIZED (tree_view))
9392     return;
9393
9394   rect.x = 0;
9395   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9396
9397   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9398   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9399
9400   if (clip_rect)
9401     {
9402       GdkRectangle new_rect;
9403
9404       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9405
9406       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9407     }
9408   else
9409     {
9410       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9411     }
9412 }
9413
9414 void
9415 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9416                                 GtkRBTree          *tree,
9417                                 GtkRBNode          *node,
9418                                 const GdkRectangle *clip_rect)
9419 {
9420   GdkRectangle rect;
9421
9422   if (!GTK_WIDGET_REALIZED (tree_view))
9423     return;
9424
9425   rect.x = 0;
9426   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9427
9428   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9429   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9430
9431   if (clip_rect)
9432     {
9433       GdkRectangle new_rect;
9434
9435       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9436
9437       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9438     }
9439   else
9440     {
9441       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9442     }
9443 }
9444
9445 static void
9446 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9447                                GtkTreePath        *path,
9448                                const GdkRectangle *clip_rect)
9449 {
9450   GtkRBTree *tree = NULL;
9451   GtkRBNode *node = NULL;
9452
9453   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9454
9455   if (tree)
9456     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9457 }
9458
9459 /* x and y are the mouse position
9460  */
9461 static void
9462 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9463                           GtkRBTree   *tree,
9464                           GtkRBNode   *node,
9465                           /* in bin_window coordinates */
9466                           gint         x,
9467                           gint         y)
9468 {
9469   GdkRectangle area;
9470   GtkStateType state;
9471   GtkWidget *widget;
9472   gint x_offset = 0;
9473   gint x2;
9474   gint vertical_separator;
9475   gint expander_size;
9476   GtkExpanderStyle expander_style;
9477
9478   gtk_widget_style_get (GTK_WIDGET (tree_view),
9479                         "vertical-separator", &vertical_separator,
9480                         NULL);
9481   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9482
9483   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9484     return;
9485
9486   widget = GTK_WIDGET (tree_view);
9487
9488   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9489
9490   area.x = x_offset;
9491   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9492   area.width = expander_size + 2;
9493   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9494
9495   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9496     {
9497       state = GTK_STATE_INSENSITIVE;
9498     }
9499   else if (node == tree_view->priv->button_pressed_node)
9500     {
9501       if (x >= area.x && x <= (area.x + area.width) &&
9502           y >= area.y && y <= (area.y + area.height))
9503         state = GTK_STATE_ACTIVE;
9504       else
9505         state = GTK_STATE_NORMAL;
9506     }
9507   else
9508     {
9509       if (node == tree_view->priv->prelight_node &&
9510           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9511         state = GTK_STATE_PRELIGHT;
9512       else
9513         state = GTK_STATE_NORMAL;
9514     }
9515
9516   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9517     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9518   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9519     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9520   else if (node->children != NULL)
9521     expander_style = GTK_EXPANDER_EXPANDED;
9522   else
9523     expander_style = GTK_EXPANDER_COLLAPSED;
9524
9525   gtk_paint_expander (widget->style,
9526                       tree_view->priv->bin_window,
9527                       state,
9528                       &area,
9529                       widget,
9530                       "treeview",
9531                       area.x + area.width / 2,
9532                       area.y + area.height / 2,
9533                       expander_style);
9534 }
9535
9536 static void
9537 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9538
9539 {
9540   GtkTreePath *cursor_path;
9541
9542   if ((tree_view->priv->tree == NULL) ||
9543       (! GTK_WIDGET_REALIZED (tree_view)))
9544     return;
9545
9546   cursor_path = NULL;
9547   if (tree_view->priv->cursor)
9548     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9549
9550   if (cursor_path == NULL)
9551     {
9552       /* Consult the selection before defaulting to the
9553        * first focusable element
9554        */
9555       GList *selected_rows;
9556       GtkTreeModel *model;
9557       GtkTreeSelection *selection;
9558
9559       selection = gtk_tree_view_get_selection (tree_view);
9560       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9561
9562       if (selected_rows)
9563         {
9564           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9565           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9566           g_list_free (selected_rows);
9567         }
9568       else
9569         {
9570           cursor_path = gtk_tree_path_new_first ();
9571           search_first_focusable_path (tree_view, &cursor_path,
9572                                        TRUE, NULL, NULL);
9573         }
9574
9575       gtk_tree_row_reference_free (tree_view->priv->cursor);
9576       tree_view->priv->cursor = NULL;
9577
9578       if (cursor_path)
9579         {
9580           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9581             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9582           else
9583             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9584         }
9585     }
9586
9587   if (cursor_path)
9588     {
9589       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9590
9591       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9592       gtk_tree_path_free (cursor_path);
9593
9594       if (tree_view->priv->focus_column == NULL)
9595         {
9596           GList *list;
9597           for (list = tree_view->priv->columns; list; list = list->next)
9598             {
9599               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9600                 {
9601                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9602                   break;
9603                 }
9604             }
9605         }
9606     }
9607 }
9608
9609 static void
9610 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9611                                    gint         count)
9612 {
9613   gint selection_count;
9614   GtkRBTree *cursor_tree = NULL;
9615   GtkRBNode *cursor_node = NULL;
9616   GtkRBTree *new_cursor_tree = NULL;
9617   GtkRBNode *new_cursor_node = NULL;
9618   GtkTreePath *cursor_path = NULL;
9619   gboolean grab_focus = TRUE;
9620   gboolean selectable;
9621
9622   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9623     return;
9624
9625   cursor_path = NULL;
9626   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9627     /* FIXME: we lost the cursor; should we get the first? */
9628     return;
9629
9630   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9631   _gtk_tree_view_find_node (tree_view, cursor_path,
9632                             &cursor_tree, &cursor_node);
9633
9634   if (cursor_tree == NULL)
9635     /* FIXME: we lost the cursor; should we get the first? */
9636     return;
9637
9638   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9639   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9640                                                       cursor_node,
9641                                                       cursor_path);
9642
9643   if (selection_count == 0
9644       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9645       && !tree_view->priv->ctrl_pressed
9646       && selectable)
9647     {
9648       /* Don't move the cursor, but just select the current node */
9649       new_cursor_tree = cursor_tree;
9650       new_cursor_node = cursor_node;
9651     }
9652   else
9653     {
9654       if (count == -1)
9655         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9656                                &new_cursor_tree, &new_cursor_node);
9657       else
9658         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9659                                &new_cursor_tree, &new_cursor_node);
9660     }
9661
9662   gtk_tree_path_free (cursor_path);
9663
9664   if (new_cursor_node)
9665     {
9666       cursor_path = _gtk_tree_view_find_path (tree_view,
9667                                               new_cursor_tree, new_cursor_node);
9668
9669       search_first_focusable_path (tree_view, &cursor_path,
9670                                    (count != -1),
9671                                    &new_cursor_tree,
9672                                    &new_cursor_node);
9673
9674       if (cursor_path)
9675         gtk_tree_path_free (cursor_path);
9676     }
9677
9678   /*
9679    * If the list has only one item and multi-selection is set then select
9680    * the row (if not yet selected).
9681    */
9682   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9683       new_cursor_node == NULL)
9684     {
9685       if (count == -1)
9686         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9687                                &new_cursor_tree, &new_cursor_node);
9688       else
9689         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9690                                &new_cursor_tree, &new_cursor_node);
9691
9692       if (new_cursor_node == NULL
9693           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9694         {
9695           new_cursor_node = cursor_node;
9696           new_cursor_tree = cursor_tree;
9697         }
9698       else
9699         {
9700           new_cursor_node = NULL;
9701         }
9702     }
9703
9704   if (new_cursor_node)
9705     {
9706       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9707       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9708       gtk_tree_path_free (cursor_path);
9709     }
9710   else
9711     {
9712       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9713
9714       if (!tree_view->priv->shift_pressed)
9715         {
9716           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9717                                           count < 0 ?
9718                                           GTK_DIR_UP : GTK_DIR_DOWN))
9719             {
9720               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9721
9722               if (toplevel)
9723                 gtk_widget_child_focus (toplevel,
9724                                         count < 0 ?
9725                                         GTK_DIR_TAB_BACKWARD :
9726                                         GTK_DIR_TAB_FORWARD);
9727
9728               grab_focus = FALSE;
9729             }
9730         }
9731       else
9732         {
9733           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9734         }
9735     }
9736
9737   if (grab_focus)
9738     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9739 }
9740
9741 static void
9742 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9743                                         gint         count)
9744 {
9745   GtkRBTree *cursor_tree = NULL;
9746   GtkRBNode *cursor_node = NULL;
9747   GtkTreePath *old_cursor_path = NULL;
9748   GtkTreePath *cursor_path = NULL;
9749   GtkRBTree *start_cursor_tree = NULL;
9750   GtkRBNode *start_cursor_node = NULL;
9751   gint y;
9752   gint window_y;
9753   gint vertical_separator;
9754
9755   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9756     return;
9757
9758   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9759     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9760   else
9761     /* This is sorta weird.  Focus in should give us a cursor */
9762     return;
9763
9764   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9765   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9766                             &cursor_tree, &cursor_node);
9767
9768   if (cursor_tree == NULL)
9769     {
9770       /* FIXME: we lost the cursor.  Should we try to get one? */
9771       gtk_tree_path_free (old_cursor_path);
9772       return;
9773     }
9774   g_return_if_fail (cursor_node != NULL);
9775
9776   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9777   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9778   y += tree_view->priv->cursor_offset;
9779   y += count * (int)tree_view->priv->vadjustment->page_increment;
9780   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9781
9782   if (y >= tree_view->priv->height)
9783     y = tree_view->priv->height - 1;
9784
9785   tree_view->priv->cursor_offset =
9786     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9787                              &cursor_tree, &cursor_node);
9788
9789   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9790     {
9791       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9792                              &cursor_tree, &cursor_node);
9793       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9794     }
9795
9796   y -= tree_view->priv->cursor_offset;
9797   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9798
9799   start_cursor_tree = cursor_tree;
9800   start_cursor_node = cursor_node;
9801
9802   if (! search_first_focusable_path (tree_view, &cursor_path,
9803                                      (count != -1),
9804                                      &cursor_tree, &cursor_node))
9805     {
9806       /* It looks like we reached the end of the view without finding
9807        * a focusable row.  We will step backwards to find the last
9808        * focusable row.
9809        */
9810       cursor_tree = start_cursor_tree;
9811       cursor_node = start_cursor_node;
9812       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9813
9814       search_first_focusable_path (tree_view, &cursor_path,
9815                                    (count == -1),
9816                                    &cursor_tree, &cursor_node);
9817     }
9818
9819   if (!cursor_path)
9820     goto cleanup;
9821
9822   /* update y */
9823   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9824
9825   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9826
9827   y -= window_y;
9828   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9829   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9830   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9831
9832   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9833     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9834
9835 cleanup:
9836   gtk_tree_path_free (old_cursor_path);
9837   gtk_tree_path_free (cursor_path);
9838 }
9839
9840 static void
9841 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9842                                       gint         count)
9843 {
9844   GtkRBTree *cursor_tree = NULL;
9845   GtkRBNode *cursor_node = NULL;
9846   GtkTreePath *cursor_path = NULL;
9847   GtkTreeViewColumn *column;
9848   GtkTreeIter iter;
9849   GList *list;
9850   gboolean found_column = FALSE;
9851   gboolean rtl;
9852
9853   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9854
9855   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9856     return;
9857
9858   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9859     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9860   else
9861     return;
9862
9863   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9864   if (cursor_tree == NULL)
9865     return;
9866   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9867     {
9868       gtk_tree_path_free (cursor_path);
9869       return;
9870     }
9871   gtk_tree_path_free (cursor_path);
9872
9873   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9874   if (tree_view->priv->focus_column)
9875     {
9876       for (; list; list = (rtl ? list->prev : list->next))
9877         {
9878           if (list->data == tree_view->priv->focus_column)
9879             break;
9880         }
9881     }
9882
9883   while (list)
9884     {
9885       gboolean left, right;
9886
9887       column = list->data;
9888       if (column->visible == FALSE)
9889         goto loop_end;
9890
9891       gtk_tree_view_column_cell_set_cell_data (column,
9892                                                tree_view->priv->model,
9893                                                &iter,
9894                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9895                                                cursor_node->children?TRUE:FALSE);
9896
9897       if (rtl)
9898         {
9899           right = list->prev ? TRUE : FALSE;
9900           left = list->next ? TRUE : FALSE;
9901         }
9902       else
9903         {
9904           left = list->prev ? TRUE : FALSE;
9905           right = list->next ? TRUE : FALSE;
9906         }
9907
9908       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9909         {
9910           tree_view->priv->focus_column = column;
9911           found_column = TRUE;
9912           break;
9913         }
9914     loop_end:
9915       if (count == 1)
9916         list = rtl ? list->prev : list->next;
9917       else
9918         list = rtl ? list->next : list->prev;
9919     }
9920
9921   if (found_column)
9922     {
9923       if (!gtk_tree_view_has_special_cell (tree_view))
9924         _gtk_tree_view_queue_draw_node (tree_view,
9925                                         cursor_tree,
9926                                         cursor_node,
9927                                         NULL);
9928       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9929     }
9930   else
9931     {
9932       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9933     }
9934
9935   gtk_tree_view_clamp_column_visible (tree_view,
9936                                       tree_view->priv->focus_column, TRUE);
9937 }
9938
9939 static void
9940 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9941                                      gint         count)
9942 {
9943   GtkRBTree *cursor_tree;
9944   GtkRBNode *cursor_node;
9945   GtkTreePath *path;
9946   GtkTreePath *old_path;
9947
9948   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9949     return;
9950
9951   g_return_if_fail (tree_view->priv->tree != NULL);
9952
9953   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9954
9955   cursor_tree = tree_view->priv->tree;
9956   cursor_node = cursor_tree->root;
9957
9958   if (count == -1)
9959     {
9960       while (cursor_node && cursor_node->left != cursor_tree->nil)
9961         cursor_node = cursor_node->left;
9962
9963       /* Now go forward to find the first focusable row. */
9964       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9965       search_first_focusable_path (tree_view, &path,
9966                                    TRUE, &cursor_tree, &cursor_node);
9967     }
9968   else
9969     {
9970       do
9971         {
9972           while (cursor_node && cursor_node->right != cursor_tree->nil)
9973             cursor_node = cursor_node->right;
9974           if (cursor_node->children == NULL)
9975             break;
9976
9977           cursor_tree = cursor_node->children;
9978           cursor_node = cursor_tree->root;
9979         }
9980       while (1);
9981
9982       /* Now go backwards to find last focusable row. */
9983       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9984       search_first_focusable_path (tree_view, &path,
9985                                    FALSE, &cursor_tree, &cursor_node);
9986     }
9987
9988   if (!path)
9989     goto cleanup;
9990
9991   if (gtk_tree_path_compare (old_path, path))
9992     {
9993       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9994     }
9995   else
9996     {
9997       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9998     }
9999
10000 cleanup:
10001   gtk_tree_path_free (old_path);
10002   gtk_tree_path_free (path);
10003 }
10004
10005 static gboolean
10006 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
10007 {
10008   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10009     return FALSE;
10010
10011   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10012     return FALSE;
10013
10014   gtk_tree_selection_select_all (tree_view->priv->selection);
10015
10016   return TRUE;
10017 }
10018
10019 static gboolean
10020 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10021 {
10022   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10023     return FALSE;
10024
10025   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10026     return FALSE;
10027
10028   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10029
10030   return TRUE;
10031 }
10032
10033 static gboolean
10034 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10035                                       gboolean     start_editing)
10036 {
10037   GtkRBTree *new_tree = NULL;
10038   GtkRBNode *new_node = NULL;
10039   GtkRBTree *cursor_tree = NULL;
10040   GtkRBNode *cursor_node = NULL;
10041   GtkTreePath *cursor_path = NULL;
10042   GtkTreeSelectMode mode = 0;
10043
10044   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10045     return FALSE;
10046
10047   if (tree_view->priv->cursor)
10048     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10049
10050   if (cursor_path == NULL)
10051     return FALSE;
10052
10053   _gtk_tree_view_find_node (tree_view, cursor_path,
10054                             &cursor_tree, &cursor_node);
10055
10056   if (cursor_tree == NULL)
10057     {
10058       gtk_tree_path_free (cursor_path);
10059       return FALSE;
10060     }
10061
10062   if (!tree_view->priv->shift_pressed && start_editing &&
10063       tree_view->priv->focus_column)
10064     {
10065       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10066         {
10067           gtk_tree_path_free (cursor_path);
10068           return TRUE;
10069         }
10070     }
10071
10072   if (tree_view->priv->ctrl_pressed)
10073     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10074   if (tree_view->priv->shift_pressed)
10075     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10076
10077   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10078                                             cursor_node,
10079                                             cursor_tree,
10080                                             cursor_path,
10081                                             mode,
10082                                             FALSE);
10083
10084   /* We bail out if the original (tree, node) don't exist anymore after
10085    * handling the selection-changed callback.  We do return TRUE because
10086    * the key press has been handled at this point.
10087    */
10088   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10089
10090   if (cursor_tree != new_tree || cursor_node != new_node)
10091     return FALSE;
10092
10093   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10094
10095   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10096   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10097
10098   if (!tree_view->priv->shift_pressed)
10099     gtk_tree_view_row_activated (tree_view, cursor_path,
10100                                  tree_view->priv->focus_column);
10101
10102   gtk_tree_path_free (cursor_path);
10103
10104   return TRUE;
10105 }
10106
10107 static gboolean
10108 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10109 {
10110   GtkRBTree *new_tree = NULL;
10111   GtkRBNode *new_node = NULL;
10112   GtkRBTree *cursor_tree = NULL;
10113   GtkRBNode *cursor_node = NULL;
10114   GtkTreePath *cursor_path = NULL;
10115
10116   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10117     return FALSE;
10118
10119   cursor_path = NULL;
10120   if (tree_view->priv->cursor)
10121     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10122
10123   if (cursor_path == NULL)
10124     return FALSE;
10125
10126   _gtk_tree_view_find_node (tree_view, cursor_path,
10127                             &cursor_tree, &cursor_node);
10128   if (cursor_tree == NULL)
10129     {
10130       gtk_tree_path_free (cursor_path);
10131       return FALSE;
10132     }
10133
10134   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10135                                             cursor_node,
10136                                             cursor_tree,
10137                                             cursor_path,
10138                                             GTK_TREE_SELECT_MODE_TOGGLE,
10139                                             FALSE);
10140
10141   /* We bail out if the original (tree, node) don't exist anymore after
10142    * handling the selection-changed callback.  We do return TRUE because
10143    * the key press has been handled at this point.
10144    */
10145   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10146
10147   if (cursor_tree != new_tree || cursor_node != new_node)
10148     return FALSE;
10149
10150   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10151
10152   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10153   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10154   gtk_tree_path_free (cursor_path);
10155
10156   return TRUE;
10157 }
10158
10159 static gboolean
10160 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10161                                                gboolean     logical,
10162                                                gboolean     expand,
10163                                                gboolean     open_all)
10164 {
10165   GtkTreePath *cursor_path = NULL;
10166   GtkRBTree *tree;
10167   GtkRBNode *node;
10168
10169   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10170     return FALSE;
10171
10172   cursor_path = NULL;
10173   if (tree_view->priv->cursor)
10174     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10175
10176   if (cursor_path == NULL)
10177     return FALSE;
10178
10179   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10180     return FALSE;
10181
10182   /* Don't handle the event if we aren't an expander */
10183   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10184     return FALSE;
10185
10186   if (!logical
10187       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10188     expand = !expand;
10189
10190   if (expand)
10191     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10192   else
10193     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10194
10195   gtk_tree_path_free (cursor_path);
10196
10197   return TRUE;
10198 }
10199
10200 static gboolean
10201 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10202 {
10203   GtkRBTree *cursor_tree = NULL;
10204   GtkRBNode *cursor_node = NULL;
10205   GtkTreePath *cursor_path = NULL;
10206   GdkModifierType state;
10207
10208   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10209     return FALSE;
10210
10211   cursor_path = NULL;
10212   if (tree_view->priv->cursor)
10213     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10214
10215   if (cursor_path == NULL)
10216     return FALSE;
10217
10218   _gtk_tree_view_find_node (tree_view, cursor_path,
10219                             &cursor_tree, &cursor_node);
10220   if (cursor_tree == NULL)
10221     {
10222       gtk_tree_path_free (cursor_path);
10223       return FALSE;
10224     }
10225
10226   if (gtk_get_current_event_state (&state))
10227     {
10228       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10229         tree_view->priv->ctrl_pressed = TRUE;
10230     }
10231
10232   if (cursor_tree->parent_node)
10233     {
10234       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10235       cursor_node = cursor_tree->parent_node;
10236       cursor_tree = cursor_tree->parent_tree;
10237
10238       gtk_tree_path_up (cursor_path);
10239
10240       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10241     }
10242
10243   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10244
10245   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10246   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10247   gtk_tree_path_free (cursor_path);
10248
10249   tree_view->priv->ctrl_pressed = FALSE;
10250
10251   return TRUE;
10252 }
10253 static gboolean
10254 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10255 {
10256   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10257   tree_view->priv->typeselect_flush_timeout = 0;
10258
10259   return FALSE;
10260 }
10261
10262 /* Cut and paste from gtkwindow.c */
10263 static void
10264 send_focus_change (GtkWidget *widget,
10265                    gboolean   in)
10266 {
10267   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10268
10269   g_object_ref (widget);
10270
10271  if (in)
10272     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10273   else
10274     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10275
10276   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10277   fevent->focus_change.window = g_object_ref (widget->window);
10278   fevent->focus_change.in = in;
10279
10280   gtk_widget_event (widget, fevent);
10281
10282   g_object_notify (G_OBJECT (widget), "has-focus");
10283
10284   g_object_unref (widget);
10285   gdk_event_free (fevent);
10286 }
10287
10288 static void
10289 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10290 {
10291   GtkWidget *frame, *vbox, *toplevel;
10292
10293   if (tree_view->priv->search_custom_entry_set)
10294     return;
10295
10296   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10297
10298    if (tree_view->priv->search_window != NULL)
10299      {
10300        if (GTK_WINDOW (toplevel)->group)
10301          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10302                                       GTK_WINDOW (tree_view->priv->search_window));
10303        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10304          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10305                                          GTK_WINDOW (tree_view->priv->search_window));
10306        return;
10307      }
10308
10309   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10310
10311   if (GTK_WINDOW (toplevel)->group)
10312     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10313                                  GTK_WINDOW (tree_view->priv->search_window));
10314
10315   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10316                             GDK_WINDOW_TYPE_HINT_UTILITY);
10317   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10318   g_signal_connect (tree_view->priv->search_window, "delete_event",
10319                     G_CALLBACK (gtk_tree_view_search_delete_event),
10320                     tree_view);
10321   g_signal_connect (tree_view->priv->search_window, "key_press_event",
10322                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10323                     tree_view);
10324   g_signal_connect (tree_view->priv->search_window, "button_press_event",
10325                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10326                     tree_view);
10327   g_signal_connect (tree_view->priv->search_window, "scroll_event",
10328                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10329                     tree_view);
10330
10331   frame = gtk_frame_new (NULL);
10332   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10333   gtk_widget_show (frame);
10334   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10335
10336   vbox = gtk_vbox_new (FALSE, 0);
10337   gtk_widget_show (vbox);
10338   gtk_container_add (GTK_CONTAINER (frame), vbox);
10339   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10340
10341   /* add entry */
10342   tree_view->priv->search_entry = gtk_entry_new ();
10343   gtk_widget_show (tree_view->priv->search_entry);
10344   g_signal_connect (tree_view->priv->search_entry, "populate_popup",
10345                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10346                     tree_view);
10347   g_signal_connect (tree_view->priv->search_entry,
10348                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10349                     tree_view);
10350   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10351                     "preedit_changed",
10352                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10353                     tree_view);
10354   gtk_container_add (GTK_CONTAINER (vbox),
10355                      tree_view->priv->search_entry);
10356
10357   gtk_widget_realize (tree_view->priv->search_entry);
10358 }
10359
10360 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10361  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10362  */
10363 static gboolean
10364 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10365                                              gboolean     keybinding)
10366 {
10367   /* We only start interactive search if we have focus or the columns
10368    * have focus.  If one of our children have focus, we don't want to
10369    * start the search.
10370    */
10371   GList *list;
10372   gboolean found_focus = FALSE;
10373   GtkWidgetClass *entry_parent_class;
10374
10375   if (!tree_view->priv->enable_search && !keybinding)
10376     return FALSE;
10377
10378   if (tree_view->priv->search_custom_entry_set)
10379     return FALSE;
10380
10381   if (tree_view->priv->search_window != NULL &&
10382       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10383     return TRUE;
10384
10385   for (list = tree_view->priv->columns; list; list = list->next)
10386     {
10387       GtkTreeViewColumn *column;
10388
10389       column = list->data;
10390       if (! column->visible)
10391         continue;
10392
10393       if (GTK_WIDGET_HAS_FOCUS (column->button))
10394         {
10395           found_focus = TRUE;
10396           break;
10397         }
10398     }
10399
10400   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10401     found_focus = TRUE;
10402
10403   if (!found_focus)
10404     return FALSE;
10405
10406   if (tree_view->priv->search_column < 0)
10407     return FALSE;
10408
10409   gtk_tree_view_ensure_interactive_directory (tree_view);
10410
10411   if (keybinding)
10412     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10413
10414   /* done, show it */
10415   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10416   gtk_widget_show (tree_view->priv->search_window);
10417   if (tree_view->priv->search_entry_changed_id == 0)
10418     {
10419       tree_view->priv->search_entry_changed_id =
10420         g_signal_connect (tree_view->priv->search_entry, "changed",
10421                           G_CALLBACK (gtk_tree_view_search_init),
10422                           tree_view);
10423     }
10424
10425   tree_view->priv->typeselect_flush_timeout =
10426     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10427                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10428                    tree_view);
10429
10430   /* Grab focus will select all the text.  We don't want that to happen, so we
10431    * call the parent instance and bypass the selection change.  This is probably
10432    * really non-kosher. */
10433   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10434   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10435
10436   /* send focus-in event */
10437   send_focus_change (tree_view->priv->search_entry, TRUE);
10438
10439   /* search first matching iter */
10440   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10441
10442   return TRUE;
10443 }
10444
10445 static gboolean
10446 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10447 {
10448   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10449 }
10450
10451 /* this function returns the new width of the column being resized given
10452  * the column and x position of the cursor; the x cursor position is passed
10453  * in as a pointer and automagicly corrected if it's beyond min/max limits
10454  */
10455 static gint
10456 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10457                                 gint       i,
10458                                 gint      *x)
10459 {
10460   GtkTreeViewColumn *column;
10461   gint width;
10462   gboolean rtl;
10463
10464   /* first translate the x position from widget->window
10465    * to clist->clist_window
10466    */
10467   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10468   column = g_list_nth (tree_view->priv->columns, i)->data;
10469   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10470
10471   /* Clamp down the value */
10472   if (column->min_width == -1)
10473     width = MAX (column->button->requisition.width,
10474                  width);
10475   else
10476     width = MAX (column->min_width,
10477                  width);
10478   if (column->max_width != -1)
10479     width = MIN (width, column->max_width);
10480
10481   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10482
10483   return width;
10484 }
10485
10486
10487 /* FIXME this adjust_allocation is a big cut-and-paste from
10488  * GtkCList, needs to be some "official" way to do this
10489  * factored out.
10490  */
10491 typedef struct
10492 {
10493   GdkWindow *window;
10494   int dx;
10495   int dy;
10496 } ScrollData;
10497
10498 /* The window to which widget->window is relative */
10499 #define ALLOCATION_WINDOW(widget)               \
10500    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10501     (widget)->window :                          \
10502      gdk_window_get_parent ((widget)->window))
10503
10504 static void
10505 adjust_allocation_recurse (GtkWidget *widget,
10506                            gpointer   data)
10507 {
10508   ScrollData *scroll_data = data;
10509
10510   /* Need to really size allocate instead of just poking
10511    * into widget->allocation if the widget is not realized.
10512    * FIXME someone figure out why this was.
10513    */
10514   if (!GTK_WIDGET_REALIZED (widget))
10515     {
10516       if (GTK_WIDGET_VISIBLE (widget))
10517         {
10518           GdkRectangle tmp_rectangle = widget->allocation;
10519           tmp_rectangle.x += scroll_data->dx;
10520           tmp_rectangle.y += scroll_data->dy;
10521
10522           gtk_widget_size_allocate (widget, &tmp_rectangle);
10523         }
10524     }
10525   else
10526     {
10527       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10528         {
10529           widget->allocation.x += scroll_data->dx;
10530           widget->allocation.y += scroll_data->dy;
10531
10532           if (GTK_IS_CONTAINER (widget))
10533             gtk_container_forall (GTK_CONTAINER (widget),
10534                                   adjust_allocation_recurse,
10535                                   data);
10536         }
10537     }
10538 }
10539
10540 static void
10541 adjust_allocation (GtkWidget *widget,
10542                    int        dx,
10543                    int        dy)
10544 {
10545   ScrollData scroll_data;
10546
10547   if (GTK_WIDGET_REALIZED (widget))
10548     scroll_data.window = ALLOCATION_WINDOW (widget);
10549   else
10550     scroll_data.window = NULL;
10551
10552   scroll_data.dx = dx;
10553   scroll_data.dy = dy;
10554
10555   adjust_allocation_recurse (widget, &scroll_data);
10556 }
10557
10558 /* Callbacks */
10559 static void
10560 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10561                                   GtkTreeView   *tree_view)
10562 {
10563   if (GTK_WIDGET_REALIZED (tree_view))
10564     {
10565       gint dy;
10566
10567       gdk_window_move (tree_view->priv->bin_window,
10568                        - tree_view->priv->hadjustment->value,
10569                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10570       gdk_window_move (tree_view->priv->header_window,
10571                        - tree_view->priv->hadjustment->value,
10572                        0);
10573       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10574       if (dy && tree_view->priv->edited_column)
10575         {
10576           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10577             {
10578               GList *list;
10579               GtkWidget *widget;
10580               GtkTreeViewChild *child = NULL;
10581
10582               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10583               adjust_allocation (widget, 0, dy);
10584
10585               for (list = tree_view->priv->children; list; list = list->next)
10586                 {
10587                   child = (GtkTreeViewChild *)list->data;
10588                   if (child->widget == widget)
10589                     {
10590                       child->y += dy;
10591                       break;
10592                     }
10593                 }
10594             }
10595         }
10596       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10597
10598       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10599         {
10600           /* update our dy and top_row */
10601           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10602
10603           if (!tree_view->priv->in_top_row_to_dy)
10604             gtk_tree_view_dy_to_top_row (tree_view);
10605         }
10606     }
10607 }
10608
10609 \f
10610
10611 /* Public methods
10612  */
10613
10614 /**
10615  * gtk_tree_view_new:
10616  *
10617  * Creates a new #GtkTreeView widget.
10618  *
10619  * Return value: A newly created #GtkTreeView widget.
10620  **/
10621 GtkWidget *
10622 gtk_tree_view_new (void)
10623 {
10624   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10625 }
10626
10627 /**
10628  * gtk_tree_view_new_with_model:
10629  * @model: the model.
10630  *
10631  * Creates a new #GtkTreeView widget with the model initialized to @model.
10632  *
10633  * Return value: A newly created #GtkTreeView widget.
10634  **/
10635 GtkWidget *
10636 gtk_tree_view_new_with_model (GtkTreeModel *model)
10637 {
10638   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10639 }
10640
10641 /* Public Accessors
10642  */
10643
10644 /**
10645  * gtk_tree_view_get_model:
10646  * @tree_view: a #GtkTreeView
10647  *
10648  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10649  * model is unset.
10650  *
10651  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10652  **/
10653 GtkTreeModel *
10654 gtk_tree_view_get_model (GtkTreeView *tree_view)
10655 {
10656   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10657
10658   return tree_view->priv->model;
10659 }
10660
10661 /**
10662  * gtk_tree_view_set_model:
10663  * @tree_view: A #GtkTreeNode.
10664  * @model: The model.
10665  *
10666  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10667  * set, it will remove it before setting the new model.  If @model is %NULL,
10668  * then it will unset the old model.
10669  **/
10670 void
10671 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10672                          GtkTreeModel *model)
10673 {
10674   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10675
10676   if (model != NULL)
10677     g_return_if_fail (GTK_IS_TREE_MODEL (model));
10678
10679   if (model == tree_view->priv->model)
10680     return;
10681
10682   if (tree_view->priv->scroll_to_path)
10683     {
10684       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10685       tree_view->priv->scroll_to_path = NULL;
10686     }
10687
10688   if (tree_view->priv->model)
10689     {
10690       GList *tmplist = tree_view->priv->columns;
10691
10692       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10693       gtk_tree_view_stop_editing (tree_view, TRUE);
10694
10695       remove_expand_collapse_timeout (tree_view);
10696
10697       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10698                                             gtk_tree_view_row_changed,
10699                                             tree_view);
10700       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10701                                             gtk_tree_view_row_inserted,
10702                                             tree_view);
10703       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10704                                             gtk_tree_view_row_has_child_toggled,
10705                                             tree_view);
10706       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10707                                             gtk_tree_view_row_deleted,
10708                                             tree_view);
10709       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10710                                             gtk_tree_view_rows_reordered,
10711                                             tree_view);
10712
10713       for (; tmplist; tmplist = tmplist->next)
10714         _gtk_tree_view_column_unset_model (tmplist->data,
10715                                            tree_view->priv->model);
10716
10717       if (tree_view->priv->tree)
10718         gtk_tree_view_free_rbtree (tree_view);
10719
10720       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10721       tree_view->priv->drag_dest_row = NULL;
10722       gtk_tree_row_reference_free (tree_view->priv->cursor);
10723       tree_view->priv->cursor = NULL;
10724       gtk_tree_row_reference_free (tree_view->priv->anchor);
10725       tree_view->priv->anchor = NULL;
10726       gtk_tree_row_reference_free (tree_view->priv->top_row);
10727       tree_view->priv->top_row = NULL;
10728       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10729       tree_view->priv->last_button_press = NULL;
10730       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10731       tree_view->priv->last_button_press_2 = NULL;
10732       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10733       tree_view->priv->scroll_to_path = NULL;
10734
10735       tree_view->priv->scroll_to_column = NULL;
10736
10737       g_object_unref (tree_view->priv->model);
10738
10739       tree_view->priv->search_column = -1;
10740       tree_view->priv->fixed_height_check = 0;
10741       tree_view->priv->fixed_height = -1;
10742       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10743     }
10744
10745   tree_view->priv->model = model;
10746
10747   if (tree_view->priv->model)
10748     {
10749       gint i;
10750       GtkTreePath *path;
10751       GtkTreeIter iter;
10752       GtkTreeModelFlags flags;
10753
10754       if (tree_view->priv->search_column == -1)
10755         {
10756           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10757             {
10758               GType type = gtk_tree_model_get_column_type (model, i);
10759
10760               if (g_value_type_transformable (type, G_TYPE_STRING))
10761                 {
10762                   tree_view->priv->search_column = i;
10763                   break;
10764                 }
10765             }
10766         }
10767
10768       g_object_ref (tree_view->priv->model);
10769       g_signal_connect (tree_view->priv->model,
10770                         "row_changed",
10771                         G_CALLBACK (gtk_tree_view_row_changed),
10772                         tree_view);
10773       g_signal_connect (tree_view->priv->model,
10774                         "row_inserted",
10775                         G_CALLBACK (gtk_tree_view_row_inserted),
10776                         tree_view);
10777       g_signal_connect (tree_view->priv->model,
10778                         "row_has_child_toggled",
10779                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10780                         tree_view);
10781       g_signal_connect (tree_view->priv->model,
10782                         "row_deleted",
10783                         G_CALLBACK (gtk_tree_view_row_deleted),
10784                         tree_view);
10785       g_signal_connect (tree_view->priv->model,
10786                         "rows_reordered",
10787                         G_CALLBACK (gtk_tree_view_rows_reordered),
10788                         tree_view);
10789
10790       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10791       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10792         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10793       else
10794         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10795
10796       path = gtk_tree_path_new_first ();
10797       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10798         {
10799           tree_view->priv->tree = _gtk_rbtree_new ();
10800           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10801         }
10802       gtk_tree_path_free (path);
10803
10804       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10805       install_presize_handler (tree_view);
10806     }
10807
10808   g_object_notify (G_OBJECT (tree_view), "model");
10809
10810   if (tree_view->priv->selection)
10811   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10812
10813   if (GTK_WIDGET_REALIZED (tree_view))
10814     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10815 }
10816
10817 /**
10818  * gtk_tree_view_get_selection:
10819  * @tree_view: A #GtkTreeView.
10820  *
10821  * Gets the #GtkTreeSelection associated with @tree_view.
10822  *
10823  * Return value: A #GtkTreeSelection object.
10824  **/
10825 GtkTreeSelection *
10826 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10827 {
10828   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10829
10830   return tree_view->priv->selection;
10831 }
10832
10833 /**
10834  * gtk_tree_view_get_hadjustment:
10835  * @tree_view: A #GtkTreeView
10836  *
10837  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10838  *
10839  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10840  * used.
10841  **/
10842 GtkAdjustment *
10843 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10844 {
10845   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10846
10847   if (tree_view->priv->hadjustment == NULL)
10848     gtk_tree_view_set_hadjustment (tree_view, NULL);
10849
10850   return tree_view->priv->hadjustment;
10851 }
10852
10853 /**
10854  * gtk_tree_view_set_hadjustment:
10855  * @tree_view: A #GtkTreeView
10856  * @adjustment: The #GtkAdjustment to set, or %NULL
10857  *
10858  * Sets the #GtkAdjustment for the current horizontal aspect.
10859  **/
10860 void
10861 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10862                                GtkAdjustment *adjustment)
10863 {
10864   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10865
10866   gtk_tree_view_set_adjustments (tree_view,
10867                                  adjustment,
10868                                  tree_view->priv->vadjustment);
10869
10870   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10871 }
10872
10873 /**
10874  * gtk_tree_view_get_vadjustment:
10875  * @tree_view: A #GtkTreeView
10876  *
10877  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10878  *
10879  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10880  * used.
10881  **/
10882 GtkAdjustment *
10883 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10884 {
10885   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10886
10887   if (tree_view->priv->vadjustment == NULL)
10888     gtk_tree_view_set_vadjustment (tree_view, NULL);
10889
10890   return tree_view->priv->vadjustment;
10891 }
10892
10893 /**
10894  * gtk_tree_view_set_vadjustment:
10895  * @tree_view: A #GtkTreeView
10896  * @adjustment: The #GtkAdjustment to set, or %NULL
10897  *
10898  * Sets the #GtkAdjustment for the current vertical aspect.
10899  **/
10900 void
10901 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10902                                GtkAdjustment *adjustment)
10903 {
10904   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10905
10906   gtk_tree_view_set_adjustments (tree_view,
10907                                  tree_view->priv->hadjustment,
10908                                  adjustment);
10909
10910   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10911 }
10912
10913 /* Column and header operations */
10914
10915 /**
10916  * gtk_tree_view_get_headers_visible:
10917  * @tree_view: A #GtkTreeView.
10918  *
10919  * Returns %TRUE if the headers on the @tree_view are visible.
10920  *
10921  * Return value: Whether the headers are visible or not.
10922  **/
10923 gboolean
10924 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10925 {
10926   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10927
10928   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10929 }
10930
10931 /**
10932  * gtk_tree_view_set_headers_visible:
10933  * @tree_view: A #GtkTreeView.
10934  * @headers_visible: %TRUE if the headers are visible
10935  *
10936  * Sets the visibility state of the headers.
10937  **/
10938 void
10939 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10940                                    gboolean     headers_visible)
10941 {
10942   gint x, y;
10943   GList *list;
10944   GtkTreeViewColumn *column;
10945
10946   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10947
10948   headers_visible = !! headers_visible;
10949
10950   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10951     return;
10952
10953   if (headers_visible)
10954     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10955   else
10956     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10957
10958   if (GTK_WIDGET_REALIZED (tree_view))
10959     {
10960       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10961       if (headers_visible)
10962         {
10963           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));
10964
10965           if (GTK_WIDGET_MAPPED (tree_view))
10966             gtk_tree_view_map_buttons (tree_view);
10967         }
10968       else
10969         {
10970           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10971
10972           for (list = tree_view->priv->columns; list; list = list->next)
10973             {
10974               column = list->data;
10975               gtk_widget_unmap (column->button);
10976             }
10977           gdk_window_hide (tree_view->priv->header_window);
10978         }
10979     }
10980
10981   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10982   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10983   tree_view->priv->vadjustment->lower = 0;
10984   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10985   gtk_adjustment_changed (tree_view->priv->vadjustment);
10986
10987   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10988
10989   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10990 }
10991
10992 /**
10993  * gtk_tree_view_columns_autosize:
10994  * @tree_view: A #GtkTreeView.
10995  *
10996  * Resizes all columns to their optimal width. Only works after the
10997  * treeview has been realized.
10998  **/
10999 void
11000 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11001 {
11002   gboolean dirty = FALSE;
11003   GList *list;
11004   GtkTreeViewColumn *column;
11005
11006   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11007
11008   for (list = tree_view->priv->columns; list; list = list->next)
11009     {
11010       column = list->data;
11011       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11012         continue;
11013       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11014       dirty = TRUE;
11015     }
11016
11017   if (dirty)
11018     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11019 }
11020
11021 /**
11022  * gtk_tree_view_set_headers_clickable:
11023  * @tree_view: A #GtkTreeView.
11024  * @setting: %TRUE if the columns are clickable.
11025  *
11026  * Allow the column title buttons to be clicked.
11027  **/
11028 void
11029 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11030                                      gboolean   setting)
11031 {
11032   GList *list;
11033
11034   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11035
11036   for (list = tree_view->priv->columns; list; list = list->next)
11037     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11038
11039   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11040 }
11041
11042
11043 /**
11044  * gtk_tree_view_get_headers_clickable:
11045  * @tree_view: A #GtkTreeView.
11046  *
11047  * Returns whether all header columns are clickable.
11048  *
11049  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11050  *
11051  * Since: 2.10
11052  **/
11053 gboolean
11054 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11055 {
11056   GList *list;
11057
11058   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11059
11060   for (list = tree_view->priv->columns; list; list = list->next)
11061     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11062       return FALSE;
11063
11064   return TRUE;
11065 }
11066
11067 /**
11068  * gtk_tree_view_set_rules_hint
11069  * @tree_view: a #GtkTreeView
11070  * @setting: %TRUE if the tree requires reading across rows
11071  *
11072  * This function tells GTK+ that the user interface for your
11073  * application requires users to read across tree rows and associate
11074  * cells with one another. By default, GTK+ will then render the tree
11075  * with alternating row colors. Do <emphasis>not</emphasis> use it
11076  * just because you prefer the appearance of the ruled tree; that's a
11077  * question for the theme. Some themes will draw tree rows in
11078  * alternating colors even when rules are turned off, and users who
11079  * prefer that appearance all the time can choose those themes. You
11080  * should call this function only as a <emphasis>semantic</emphasis>
11081  * hint to the theme engine that your tree makes alternating colors
11082  * useful from a functional standpoint (since it has lots of columns,
11083  * generally).
11084  *
11085  **/
11086 void
11087 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11088                               gboolean      setting)
11089 {
11090   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11091
11092   setting = setting != FALSE;
11093
11094   if (tree_view->priv->has_rules != setting)
11095     {
11096       tree_view->priv->has_rules = setting;
11097       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11098     }
11099
11100   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11101 }
11102
11103 /**
11104  * gtk_tree_view_get_rules_hint
11105  * @tree_view: a #GtkTreeView
11106  *
11107  * Gets the setting set by gtk_tree_view_set_rules_hint().
11108  *
11109  * Return value: %TRUE if rules are useful for the user of this tree
11110  **/
11111 gboolean
11112 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11113 {
11114   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11115
11116   return tree_view->priv->has_rules;
11117 }
11118
11119 /* Public Column functions
11120  */
11121
11122 /**
11123  * gtk_tree_view_append_column:
11124  * @tree_view: A #GtkTreeView.
11125  * @column: The #GtkTreeViewColumn to add.
11126  *
11127  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11128  * mode enabled, then @column must have its "sizing" property set to be
11129  * GTK_TREE_VIEW_COLUMN_FIXED.
11130  *
11131  * Return value: The number of columns in @tree_view after appending.
11132  **/
11133 gint
11134 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11135                              GtkTreeViewColumn *column)
11136 {
11137   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11138   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11139   g_return_val_if_fail (column->tree_view == NULL, -1);
11140
11141   return gtk_tree_view_insert_column (tree_view, column, -1);
11142 }
11143
11144
11145 /**
11146  * gtk_tree_view_remove_column:
11147  * @tree_view: A #GtkTreeView.
11148  * @column: The #GtkTreeViewColumn to remove.
11149  *
11150  * Removes @column from @tree_view.
11151  *
11152  * Return value: The number of columns in @tree_view after removing.
11153  **/
11154 gint
11155 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11156                              GtkTreeViewColumn *column)
11157 {
11158   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11159   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11160   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11161
11162   if (tree_view->priv->focus_column == column)
11163     tree_view->priv->focus_column = NULL;
11164
11165   if (tree_view->priv->edited_column == column)
11166     {
11167       gtk_tree_view_stop_editing (tree_view, TRUE);
11168
11169       /* no need to, but just to be sure ... */
11170       tree_view->priv->edited_column = NULL;
11171     }
11172
11173   g_signal_handlers_disconnect_by_func (column,
11174                                         G_CALLBACK (column_sizing_notify),
11175                                         tree_view);
11176
11177   _gtk_tree_view_column_unset_tree_view (column);
11178
11179   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11180   tree_view->priv->n_columns--;
11181
11182   if (GTK_WIDGET_REALIZED (tree_view))
11183     {
11184       GList *list;
11185
11186       _gtk_tree_view_column_unrealize_button (column);
11187       for (list = tree_view->priv->columns; list; list = list->next)
11188         {
11189           GtkTreeViewColumn *tmp_column;
11190
11191           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11192           if (tmp_column->visible)
11193             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11194         }
11195
11196       if (tree_view->priv->n_columns == 0 &&
11197           gtk_tree_view_get_headers_visible (tree_view))
11198         gdk_window_hide (tree_view->priv->header_window);
11199
11200       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11201     }
11202
11203   g_object_unref (column);
11204   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11205
11206   return tree_view->priv->n_columns;
11207 }
11208
11209 /**
11210  * gtk_tree_view_insert_column:
11211  * @tree_view: A #GtkTreeView.
11212  * @column: The #GtkTreeViewColumn to be inserted.
11213  * @position: The position to insert @column in.
11214  *
11215  * This inserts the @column into the @tree_view at @position.  If @position is
11216  * -1, then the column is inserted at the end. If @tree_view has
11217  * "fixed_height" mode enabled, then @column must have its "sizing" property
11218  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11219  *
11220  * Return value: The number of columns in @tree_view after insertion.
11221  **/
11222 gint
11223 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11224                              GtkTreeViewColumn *column,
11225                              gint               position)
11226 {
11227   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11228   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11229   g_return_val_if_fail (column->tree_view == NULL, -1);
11230
11231   if (tree_view->priv->fixed_height_mode)
11232     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11233                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11234
11235   g_object_ref_sink (column);
11236
11237   if (tree_view->priv->n_columns == 0 &&
11238       GTK_WIDGET_REALIZED (tree_view) &&
11239       gtk_tree_view_get_headers_visible (tree_view))
11240     {
11241       gdk_window_show (tree_view->priv->header_window);
11242     }
11243
11244   g_signal_connect (column, "notify::sizing",
11245                     G_CALLBACK (column_sizing_notify), tree_view);
11246
11247   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11248                                             column, position);
11249   tree_view->priv->n_columns++;
11250
11251   _gtk_tree_view_column_set_tree_view (column, tree_view);
11252
11253   if (GTK_WIDGET_REALIZED (tree_view))
11254     {
11255       GList *list;
11256
11257       _gtk_tree_view_column_realize_button (column);
11258
11259       for (list = tree_view->priv->columns; list; list = list->next)
11260         {
11261           column = GTK_TREE_VIEW_COLUMN (list->data);
11262           if (column->visible)
11263             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11264         }
11265       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11266     }
11267
11268   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11269
11270   return tree_view->priv->n_columns;
11271 }
11272
11273 /**
11274  * gtk_tree_view_insert_column_with_attributes:
11275  * @tree_view: A #GtkTreeView
11276  * @position: The position to insert the new column in.
11277  * @title: The title to set the header to.
11278  * @cell: The #GtkCellRenderer.
11279  * @Varargs: A %NULL-terminated list of attributes.
11280  *
11281  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11282  * @position.  If @position is -1, then the newly created column is inserted at
11283  * the end.  The column is initialized with the attributes given. If @tree_view
11284  * has "fixed_height" mode enabled, then the new column will have its sizing
11285  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11286  *
11287  * Return value: The number of columns in @tree_view after insertion.
11288  **/
11289 gint
11290 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11291                                              gint             position,
11292                                              const gchar     *title,
11293                                              GtkCellRenderer *cell,
11294                                              ...)
11295 {
11296   GtkTreeViewColumn *column;
11297   gchar *attribute;
11298   va_list args;
11299   gint column_id;
11300
11301   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11302
11303   column = gtk_tree_view_column_new ();
11304   if (tree_view->priv->fixed_height_mode)
11305     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11306
11307   gtk_tree_view_column_set_title (column, title);
11308   gtk_tree_view_column_pack_start (column, cell, TRUE);
11309
11310   va_start (args, cell);
11311
11312   attribute = va_arg (args, gchar *);
11313
11314   while (attribute != NULL)
11315     {
11316       column_id = va_arg (args, gint);
11317       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11318       attribute = va_arg (args, gchar *);
11319     }
11320
11321   va_end (args);
11322
11323   gtk_tree_view_insert_column (tree_view, column, position);
11324
11325   return tree_view->priv->n_columns;
11326 }
11327
11328 /**
11329  * gtk_tree_view_insert_column_with_data_func:
11330  * @tree_view: a #GtkTreeView
11331  * @position: Position to insert, -1 for append
11332  * @title: column title
11333  * @cell: cell renderer for column
11334  * @func: function to set attributes of cell renderer
11335  * @data: data for @func
11336  * @dnotify: destroy notifier for @data
11337  *
11338  * Convenience function that inserts a new column into the #GtkTreeView
11339  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11340  * attributes (normally using data from the model). See also
11341  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11342  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11343  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11344  *
11345  * Return value: number of columns in the tree view post-insert
11346  **/
11347 gint
11348 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11349                                              gint                       position,
11350                                              const gchar               *title,
11351                                              GtkCellRenderer           *cell,
11352                                              GtkTreeCellDataFunc        func,
11353                                              gpointer                   data,
11354                                              GDestroyNotify             dnotify)
11355 {
11356   GtkTreeViewColumn *column;
11357
11358   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11359
11360   column = gtk_tree_view_column_new ();
11361   if (tree_view->priv->fixed_height_mode)
11362     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11363
11364   gtk_tree_view_column_set_title (column, title);
11365   gtk_tree_view_column_pack_start (column, cell, TRUE);
11366   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11367
11368   gtk_tree_view_insert_column (tree_view, column, position);
11369
11370   return tree_view->priv->n_columns;
11371 }
11372
11373 /**
11374  * gtk_tree_view_get_column:
11375  * @tree_view: A #GtkTreeView.
11376  * @n: The position of the column, counting from 0.
11377  *
11378  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11379  *
11380  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11381  * range of columns.
11382  **/
11383 GtkTreeViewColumn *
11384 gtk_tree_view_get_column (GtkTreeView *tree_view,
11385                           gint         n)
11386 {
11387   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11388
11389   if (n < 0 || n >= tree_view->priv->n_columns)
11390     return NULL;
11391
11392   if (tree_view->priv->columns == NULL)
11393     return NULL;
11394
11395   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11396 }
11397
11398 /**
11399  * gtk_tree_view_get_columns:
11400  * @tree_view: A #GtkTreeView
11401  *
11402  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11403  * The returned list must be freed with g_list_free ().
11404  *
11405  * Return value: A list of #GtkTreeViewColumn s
11406  **/
11407 GList *
11408 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11409 {
11410   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11411
11412   return g_list_copy (tree_view->priv->columns);
11413 }
11414
11415 /**
11416  * gtk_tree_view_move_column_after:
11417  * @tree_view: A #GtkTreeView
11418  * @column: The #GtkTreeViewColumn to be moved.
11419  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11420  *
11421  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11422  * @column is placed in the first position.
11423  **/
11424 void
11425 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11426                                  GtkTreeViewColumn *column,
11427                                  GtkTreeViewColumn *base_column)
11428 {
11429   GList *column_list_el, *base_el = NULL;
11430
11431   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11432
11433   column_list_el = g_list_find (tree_view->priv->columns, column);
11434   g_return_if_fail (column_list_el != NULL);
11435
11436   if (base_column)
11437     {
11438       base_el = g_list_find (tree_view->priv->columns, base_column);
11439       g_return_if_fail (base_el != NULL);
11440     }
11441
11442   if (column_list_el->prev == base_el)
11443     return;
11444
11445   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11446   if (base_el == NULL)
11447     {
11448       column_list_el->prev = NULL;
11449       column_list_el->next = tree_view->priv->columns;
11450       if (column_list_el->next)
11451         column_list_el->next->prev = column_list_el;
11452       tree_view->priv->columns = column_list_el;
11453     }
11454   else
11455     {
11456       column_list_el->prev = base_el;
11457       column_list_el->next = base_el->next;
11458       if (column_list_el->next)
11459         column_list_el->next->prev = column_list_el;
11460       base_el->next = column_list_el;
11461     }
11462
11463   if (GTK_WIDGET_REALIZED (tree_view))
11464     {
11465       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11466       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11467     }
11468
11469   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11470 }
11471
11472 /**
11473  * gtk_tree_view_set_expander_column:
11474  * @tree_view: A #GtkTreeView
11475  * @column: %NULL, or the column to draw the expander arrow at.
11476  *
11477  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11478  * If @column is %NULL, then the expander arrow is always at the first
11479  * visible column.
11480  *
11481  * If you do not want expander arrow to appear in your tree, set the
11482  * expander column to a hidden column.
11483  **/
11484 void
11485 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11486                                    GtkTreeViewColumn *column)
11487 {
11488   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11489   if (column != NULL)
11490     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
11491
11492   if (tree_view->priv->expander_column != column)
11493     {
11494       GList *list;
11495
11496       if (column)
11497         {
11498           /* Confirm that column is in tree_view */
11499           for (list = tree_view->priv->columns; list; list = list->next)
11500             if (list->data == column)
11501               break;
11502           g_return_if_fail (list != NULL);
11503         }
11504
11505       tree_view->priv->expander_column = column;
11506       g_object_notify (G_OBJECT (tree_view), "expander-column");
11507     }
11508 }
11509
11510 /**
11511  * gtk_tree_view_get_expander_column:
11512  * @tree_view: A #GtkTreeView
11513  *
11514  * Returns the column that is the current expander column.  This
11515  * column has the expander arrow drawn next to it.
11516  *
11517  * Return value: The expander column.
11518  **/
11519 GtkTreeViewColumn *
11520 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11521 {
11522   GList *list;
11523
11524   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11525
11526   for (list = tree_view->priv->columns; list; list = list->next)
11527     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11528       return (GtkTreeViewColumn *) list->data;
11529   return NULL;
11530 }
11531
11532
11533 /**
11534  * gtk_tree_view_set_column_drag_function:
11535  * @tree_view: A #GtkTreeView.
11536  * @func: A function to determine which columns are reorderable, or %NULL.
11537  * @user_data: User data to be passed to @func, or %NULL
11538  * @destroy: Destroy notifier for @user_data, or %NULL
11539  *
11540  * Sets a user function for determining where a column may be dropped when
11541  * dragged.  This function is called on every column pair in turn at the
11542  * beginning of a column drag to determine where a drop can take place.  The
11543  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11544  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11545  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11546  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11547  * @tree_view reverts to the default behavior of allowing all columns to be
11548  * dropped everywhere.
11549  **/
11550 void
11551 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11552                                         GtkTreeViewColumnDropFunc  func,
11553                                         gpointer                   user_data,
11554                                         GDestroyNotify             destroy)
11555 {
11556   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11557
11558   if (tree_view->priv->column_drop_func_data_destroy)
11559     (* tree_view->priv->column_drop_func_data_destroy) (tree_view->priv->column_drop_func_data);
11560
11561   tree_view->priv->column_drop_func = func;
11562   tree_view->priv->column_drop_func_data = user_data;
11563   tree_view->priv->column_drop_func_data_destroy = destroy;
11564 }
11565
11566 /**
11567  * gtk_tree_view_scroll_to_point:
11568  * @tree_view: a #GtkTreeView
11569  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11570  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11571  *
11572  * Scrolls the tree view such that the top-left corner of the visible
11573  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11574  * in tree coordinates.  The @tree_view must be realized before
11575  * this function is called.  If it isn't, you probably want to be
11576  * using gtk_tree_view_scroll_to_cell().
11577  *
11578  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11579  **/
11580 void
11581 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11582                                gint         tree_x,
11583                                gint         tree_y)
11584 {
11585   GtkAdjustment *hadj;
11586   GtkAdjustment *vadj;
11587
11588   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11589   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11590
11591   hadj = tree_view->priv->hadjustment;
11592   vadj = tree_view->priv->vadjustment;
11593
11594   if (tree_x != -1)
11595     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11596   if (tree_y != -1)
11597     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11598 }
11599
11600 /**
11601  * gtk_tree_view_scroll_to_cell:
11602  * @tree_view: A #GtkTreeView.
11603  * @path: The path of the row to move to, or %NULL.
11604  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11605  * @use_align: whether to use alignment arguments, or %FALSE.
11606  * @row_align: The vertical alignment of the row specified by @path.
11607  * @col_align: The horizontal alignment of the column specified by @column.
11608  *
11609  * Moves the alignments of @tree_view to the position specified by @column and
11610  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11611  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11612  * or @path need to be non-%NULL.  @row_align determines where the row is
11613  * placed, and @col_align determines where @column is placed.  Both are expected
11614  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11615  * right/bottom alignment, 0.5 means center.
11616  *
11617  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11618  * tree does the minimum amount of work to scroll the cell onto the screen.
11619  * This means that the cell will be scrolled to the edge closest to its current
11620  * position.  If the cell is currently visible on the screen, nothing is done.
11621  *
11622  * This function only works if the model is set, and @path is a valid row on the
11623  * model.  If the model changes before the @tree_view is realized, the centered
11624  * path will be modified to reflect this change.
11625  **/
11626 void
11627 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11628                               GtkTreePath       *path,
11629                               GtkTreeViewColumn *column,
11630                               gboolean           use_align,
11631                               gfloat             row_align,
11632                               gfloat             col_align)
11633 {
11634   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11635   g_return_if_fail (tree_view->priv->model != NULL);
11636   g_return_if_fail (tree_view->priv->tree != NULL);
11637   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11638   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11639   g_return_if_fail (path != NULL || column != NULL);
11640
11641 #if 0
11642   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11643            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11644 #endif
11645   row_align = CLAMP (row_align, 0.0, 1.0);
11646   col_align = CLAMP (col_align, 0.0, 1.0);
11647
11648
11649   /* Note: Despite the benefits that come from having one code path for the
11650    * scrolling code, we short-circuit validate_visible_area's immplementation as
11651    * it is much slower than just going to the point.
11652    */
11653   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11654       ! GTK_WIDGET_REALIZED (tree_view) ||
11655       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11656       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11657     {
11658       if (tree_view->priv->scroll_to_path)
11659         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11660
11661       tree_view->priv->scroll_to_path = NULL;
11662       tree_view->priv->scroll_to_column = NULL;
11663
11664       if (path)
11665         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11666       if (column)
11667         tree_view->priv->scroll_to_column = column;
11668       tree_view->priv->scroll_to_use_align = use_align;
11669       tree_view->priv->scroll_to_row_align = row_align;
11670       tree_view->priv->scroll_to_col_align = col_align;
11671
11672       install_presize_handler (tree_view);
11673     }
11674   else
11675     {
11676       GdkRectangle cell_rect;
11677       GdkRectangle vis_rect;
11678       gint dest_x, dest_y;
11679
11680       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11681       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11682
11683       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11684
11685       dest_x = vis_rect.x;
11686       dest_y = vis_rect.y;
11687
11688       if (column)
11689         {
11690           if (use_align)
11691             {
11692               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11693             }
11694           else
11695             {
11696               if (cell_rect.x < vis_rect.x)
11697                 dest_x = cell_rect.x;
11698               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11699                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11700             }
11701         }
11702
11703       if (path)
11704         {
11705           if (use_align)
11706             {
11707               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11708               dest_y = MAX (dest_y, 0);
11709             }
11710           else
11711             {
11712               if (cell_rect.y < vis_rect.y)
11713                 dest_y = cell_rect.y;
11714               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11715                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11716             }
11717         }
11718
11719       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11720     }
11721 }
11722
11723 /**
11724  * gtk_tree_view_row_activated:
11725  * @tree_view: A #GtkTreeView
11726  * @path: The #GtkTreePath to be activated.
11727  * @column: The #GtkTreeViewColumn to be activated.
11728  *
11729  * Activates the cell determined by @path and @column.
11730  **/
11731 void
11732 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11733                              GtkTreePath       *path,
11734                              GtkTreeViewColumn *column)
11735 {
11736   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11737
11738   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11739 }
11740
11741
11742 static void
11743 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11744                                           GtkRBNode *node,
11745                                           gpointer   data)
11746 {
11747   GtkTreeView *tree_view = data;
11748
11749   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11750       node->children)
11751     {
11752       GtkTreePath *path;
11753       GtkTreeIter iter;
11754
11755       path = _gtk_tree_view_find_path (tree_view, tree, node);
11756       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11757
11758       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11759
11760       gtk_tree_path_free (path);
11761     }
11762
11763   if (node->children)
11764     _gtk_rbtree_traverse (node->children,
11765                           node->children->root,
11766                           G_PRE_ORDER,
11767                           gtk_tree_view_expand_all_emission_helper,
11768                           tree_view);
11769 }
11770
11771 /**
11772  * gtk_tree_view_expand_all:
11773  * @tree_view: A #GtkTreeView.
11774  *
11775  * Recursively expands all nodes in the @tree_view.
11776  **/
11777 void
11778 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11779 {
11780   GtkTreePath *path;
11781   GtkRBTree *tree;
11782   GtkRBNode *node;
11783
11784   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11785
11786   if (tree_view->priv->tree == NULL)
11787     return;
11788
11789   path = gtk_tree_path_new_first ();
11790   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11791
11792   while (node)
11793     {
11794       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11795       node = _gtk_rbtree_next (tree, node);
11796       gtk_tree_path_next (path);
11797   }
11798
11799   gtk_tree_path_free (path);
11800 }
11801
11802 /* Timeout to animate the expander during expands and collapses */
11803 static gboolean
11804 expand_collapse_timeout (gpointer data)
11805 {
11806   return do_expand_collapse (data);
11807 }
11808
11809 static void
11810 add_expand_collapse_timeout (GtkTreeView *tree_view,
11811                              GtkRBTree   *tree,
11812                              GtkRBNode   *node,
11813                              gboolean     expand)
11814 {
11815   if (tree_view->priv->expand_collapse_timeout != 0)
11816     return;
11817
11818   tree_view->priv->expand_collapse_timeout =
11819       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11820   tree_view->priv->expanded_collapsed_tree = tree;
11821   tree_view->priv->expanded_collapsed_node = node;
11822
11823   if (expand)
11824     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11825   else
11826     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11827 }
11828
11829 static void
11830 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11831 {
11832   if (tree_view->priv->expand_collapse_timeout)
11833     {
11834       g_source_remove (tree_view->priv->expand_collapse_timeout);
11835       tree_view->priv->expand_collapse_timeout = 0;
11836     }
11837
11838   if (tree_view->priv->expanded_collapsed_node != NULL)
11839     {
11840       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11841       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11842
11843       tree_view->priv->expanded_collapsed_node = NULL;
11844     }
11845 }
11846
11847 static void
11848 cancel_arrow_animation (GtkTreeView *tree_view)
11849 {
11850   if (tree_view->priv->expand_collapse_timeout)
11851     {
11852       while (do_expand_collapse (tree_view));
11853
11854       remove_expand_collapse_timeout (tree_view);
11855     }
11856 }
11857
11858 static gboolean
11859 do_expand_collapse (GtkTreeView *tree_view)
11860 {
11861   GtkRBNode *node;
11862   GtkRBTree *tree;
11863   gboolean expanding;
11864   gboolean redraw;
11865
11866   redraw = FALSE;
11867   expanding = TRUE;
11868
11869   node = tree_view->priv->expanded_collapsed_node;
11870   tree = tree_view->priv->expanded_collapsed_tree;
11871
11872   if (node->children == NULL)
11873     expanding = FALSE;
11874
11875   if (expanding)
11876     {
11877       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11878         {
11879           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11880           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11881
11882           redraw = TRUE;
11883
11884         }
11885       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11886         {
11887           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11888
11889           redraw = TRUE;
11890         }
11891     }
11892   else
11893     {
11894       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11895         {
11896           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11897           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11898
11899           redraw = TRUE;
11900         }
11901       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11902         {
11903           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11904
11905           redraw = TRUE;
11906
11907         }
11908     }
11909
11910   if (redraw)
11911     {
11912       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11913
11914       return TRUE;
11915     }
11916
11917   return FALSE;
11918 }
11919
11920 /**
11921  * gtk_tree_view_collapse_all:
11922  * @tree_view: A #GtkTreeView.
11923  *
11924  * Recursively collapses all visible, expanded nodes in @tree_view.
11925  **/
11926 void
11927 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11928 {
11929   GtkRBTree *tree;
11930   GtkRBNode *node;
11931   GtkTreePath *path;
11932   gint *indices;
11933
11934   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11935
11936   if (tree_view->priv->tree == NULL)
11937     return;
11938
11939   path = gtk_tree_path_new ();
11940   gtk_tree_path_down (path);
11941   indices = gtk_tree_path_get_indices (path);
11942
11943   tree = tree_view->priv->tree;
11944   node = tree->root;
11945   while (node && node->left != tree->nil)
11946     node = node->left;
11947
11948   while (node)
11949     {
11950       if (node->children)
11951         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11952       indices[0]++;
11953       node = _gtk_rbtree_next (tree, node);
11954     }
11955
11956   gtk_tree_path_free (path);
11957 }
11958
11959 /**
11960  * gtk_tree_view_expand_to_path:
11961  * @tree_view: A #GtkTreeView.
11962  * @path: path to a row.
11963  *
11964  * Expands the row at @path. This will also expand all parent rows of
11965  * @path as necessary.
11966  *
11967  * Since: 2.2
11968  **/
11969 void
11970 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11971                               GtkTreePath *path)
11972 {
11973   gint i, depth;
11974   gint *indices;
11975   GtkTreePath *tmp;
11976
11977   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11978   g_return_if_fail (path != NULL);
11979
11980   depth = gtk_tree_path_get_depth (path);
11981   indices = gtk_tree_path_get_indices (path);
11982
11983   tmp = gtk_tree_path_new ();
11984   g_return_if_fail (tmp != NULL);
11985
11986   for (i = 0; i < depth; i++)
11987     {
11988       gtk_tree_path_append_index (tmp, indices[i]);
11989       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11990     }
11991
11992   gtk_tree_path_free (tmp);
11993 }
11994
11995 /* FIXME the bool return values for expand_row and collapse_row are
11996  * not analagous; they should be TRUE if the row had children and
11997  * was not already in the requested state.
11998  */
11999
12000
12001 static gboolean
12002 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
12003                                GtkTreePath *path,
12004                                GtkRBTree   *tree,
12005                                GtkRBNode   *node,
12006                                gboolean     open_all,
12007                                gboolean     animate)
12008 {
12009   GtkTreeIter iter;
12010   GtkTreeIter temp;
12011   gboolean expand;
12012
12013   if (animate)
12014     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12015                   "gtk-enable-animations", &animate,
12016                   NULL);
12017
12018   remove_auto_expand_timeout (tree_view);
12019
12020   if (node->children && !open_all)
12021     return FALSE;
12022
12023   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
12024     return FALSE;
12025
12026   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12027   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12028     return FALSE;
12029
12030
12031    if (node->children && open_all)
12032     {
12033       gboolean retval = FALSE;
12034       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12035
12036       gtk_tree_path_append_index (tmp_path, 0);
12037       tree = node->children;
12038       node = tree->root;
12039       while (node->left != tree->nil)
12040         node = node->left;
12041       /* try to expand the children */
12042       do
12043         {
12044          gboolean t;
12045          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12046                                             TRUE, animate);
12047          if (t)
12048            retval = TRUE;
12049
12050          gtk_tree_path_next (tmp_path);
12051          node = _gtk_rbtree_next (tree, node);
12052        }
12053       while (node != NULL);
12054
12055       gtk_tree_path_free (tmp_path);
12056
12057       return retval;
12058     }
12059
12060   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12061
12062   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12063     return FALSE;
12064
12065   if (expand)
12066     return FALSE;
12067
12068   node->children = _gtk_rbtree_new ();
12069   node->children->parent_tree = tree;
12070   node->children->parent_node = node;
12071
12072   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12073
12074   gtk_tree_view_build_tree (tree_view,
12075                             node->children,
12076                             &temp,
12077                             gtk_tree_path_get_depth (path) + 1,
12078                             open_all);
12079
12080   remove_expand_collapse_timeout (tree_view);
12081
12082   if (animate)
12083     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12084
12085   install_presize_handler (tree_view);
12086
12087   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12088   if (open_all && node->children)
12089     {
12090       _gtk_rbtree_traverse (node->children,
12091                             node->children->root,
12092                             G_PRE_ORDER,
12093                             gtk_tree_view_expand_all_emission_helper,
12094                             tree_view);
12095     }
12096   return TRUE;
12097 }
12098
12099
12100 /**
12101  * gtk_tree_view_expand_row:
12102  * @tree_view: a #GtkTreeView
12103  * @path: path to a row
12104  * @open_all: whether to recursively expand, or just expand immediate children
12105  *
12106  * Opens the row so its children are visible.
12107  *
12108  * Return value: %TRUE if the row existed and had children
12109  **/
12110 gboolean
12111 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12112                           GtkTreePath *path,
12113                           gboolean     open_all)
12114 {
12115   GtkRBTree *tree;
12116   GtkRBNode *node;
12117
12118   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12119   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12120   g_return_val_if_fail (path != NULL, FALSE);
12121
12122   if (_gtk_tree_view_find_node (tree_view,
12123                                 path,
12124                                 &tree,
12125                                 &node))
12126     return FALSE;
12127
12128   if (tree != NULL)
12129     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12130   else
12131     return FALSE;
12132 }
12133
12134 static gboolean
12135 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12136                                  GtkTreePath *path,
12137                                  GtkRBTree   *tree,
12138                                  GtkRBNode   *node,
12139                                  gboolean     animate)
12140 {
12141   GtkTreeIter iter;
12142   GtkTreeIter children;
12143   gboolean collapse;
12144   gint x, y;
12145   GList *list;
12146   GdkWindow *child, *parent;
12147
12148   if (animate)
12149     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12150                   "gtk-enable-animations", &animate,
12151                   NULL);
12152
12153   remove_auto_expand_timeout (tree_view);
12154
12155   if (node->children == NULL)
12156     return FALSE;
12157
12158   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12159
12160   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12161
12162   if (collapse)
12163     return FALSE;
12164
12165   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12166    * a chance to prelight the correct node below */
12167
12168   if (tree_view->priv->prelight_tree)
12169     {
12170       GtkRBTree *parent_tree;
12171       GtkRBNode *parent_node;
12172
12173       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12174       parent_node = tree_view->priv->prelight_tree->parent_node;
12175       while (parent_tree)
12176         {
12177           if (parent_tree == tree && parent_node == node)
12178             {
12179               ensure_unprelighted (tree_view);
12180               break;
12181             }
12182           parent_node = parent_tree->parent_node;
12183           parent_tree = parent_tree->parent_tree;
12184         }
12185     }
12186
12187   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12188
12189   for (list = tree_view->priv->columns; list; list = list->next)
12190     {
12191       GtkTreeViewColumn *column = list->data;
12192
12193       if (column->visible == FALSE)
12194         continue;
12195       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12196         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12197     }
12198
12199   if (tree_view->priv->destroy_count_func)
12200     {
12201       GtkTreePath *child_path;
12202       gint child_count = 0;
12203       child_path = gtk_tree_path_copy (path);
12204       gtk_tree_path_down (child_path);
12205       if (node->children)
12206         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12207       (* tree_view->priv->destroy_count_func) (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12208       gtk_tree_path_free (child_path);
12209     }
12210
12211   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12212     {
12213       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12214
12215       if (gtk_tree_path_is_ancestor (path, cursor_path))
12216         {
12217           gtk_tree_row_reference_free (tree_view->priv->cursor);
12218           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12219                                                                       tree_view->priv->model,
12220                                                                       path);
12221         }
12222       gtk_tree_path_free (cursor_path);
12223     }
12224
12225   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12226     {
12227       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12228       if (gtk_tree_path_is_ancestor (path, anchor_path))
12229         {
12230           gtk_tree_row_reference_free (tree_view->priv->anchor);
12231           tree_view->priv->anchor = NULL;
12232         }
12233       gtk_tree_path_free (anchor_path);
12234     }
12235
12236   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12237     {
12238       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12239       if (gtk_tree_path_is_ancestor (path, lsc))
12240         {
12241           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12242           tree_view->priv->last_button_press = NULL;
12243         }
12244       gtk_tree_path_free (lsc);
12245     }
12246
12247   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12248     {
12249       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12250       if (gtk_tree_path_is_ancestor (path, lsc))
12251         {
12252           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12253           tree_view->priv->last_button_press_2 = NULL;
12254         }
12255       gtk_tree_path_free (lsc);
12256     }
12257
12258   remove_expand_collapse_timeout (tree_view);
12259
12260   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12261     {
12262       _gtk_rbtree_remove (node->children);
12263       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12264     }
12265   else
12266     _gtk_rbtree_remove (node->children);
12267
12268   if (animate)
12269     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12270
12271   if (GTK_WIDGET_MAPPED (tree_view))
12272     {
12273       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12274     }
12275
12276   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12277
12278   if (GTK_WIDGET_MAPPED (tree_view))
12279     {
12280       /* now that we've collapsed all rows, we want to try to set the prelight
12281        * again. To do this, we fake a motion event and send it to ourselves. */
12282
12283       child = tree_view->priv->bin_window;
12284       parent = gdk_window_get_parent (child);
12285
12286       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12287         {
12288           GdkEventMotion event;
12289           gint child_x, child_y;
12290
12291           gdk_window_get_position (child, &child_x, &child_y);
12292
12293           event.window = tree_view->priv->bin_window;
12294           event.x = x - child_x;
12295           event.y = y - child_y;
12296
12297           /* despite the fact this isn't a real event, I'm almost positive it will
12298            * never trigger a drag event.  maybe_drag is the only function that uses
12299            * more than just event.x and event.y. */
12300           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12301         }
12302     }
12303
12304   return TRUE;
12305 }
12306
12307 /**
12308  * gtk_tree_view_collapse_row:
12309  * @tree_view: a #GtkTreeView
12310  * @path: path to a row in the @tree_view
12311  *
12312  * Collapses a row (hides its child rows, if they exist).
12313  *
12314  * Return value: %TRUE if the row was collapsed.
12315  **/
12316 gboolean
12317 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12318                             GtkTreePath *path)
12319 {
12320   GtkRBTree *tree;
12321   GtkRBNode *node;
12322
12323   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12324   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12325   g_return_val_if_fail (path != NULL, FALSE);
12326
12327   if (_gtk_tree_view_find_node (tree_view,
12328                                 path,
12329                                 &tree,
12330                                 &node))
12331     return FALSE;
12332
12333   if (tree == NULL || node->children == NULL)
12334     return FALSE;
12335
12336   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12337 }
12338
12339 static void
12340 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12341                                         GtkRBTree              *tree,
12342                                         GtkTreePath            *path,
12343                                         GtkTreeViewMappingFunc  func,
12344                                         gpointer                user_data)
12345 {
12346   GtkRBNode *node;
12347
12348   if (tree == NULL || tree->root == NULL)
12349     return;
12350
12351   node = tree->root;
12352
12353   while (node && node->left != tree->nil)
12354     node = node->left;
12355
12356   while (node)
12357     {
12358       if (node->children)
12359         {
12360           (* func) (tree_view, path, user_data);
12361           gtk_tree_path_down (path);
12362           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12363           gtk_tree_path_up (path);
12364         }
12365       gtk_tree_path_next (path);
12366       node = _gtk_rbtree_next (tree, node);
12367     }
12368 }
12369
12370 /**
12371  * gtk_tree_view_map_expanded_rows:
12372  * @tree_view: A #GtkTreeView
12373  * @func: A function to be called
12374  * @data: User data to be passed to the function.
12375  *
12376  * Calls @func on all expanded rows.
12377  **/
12378 void
12379 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12380                                  GtkTreeViewMappingFunc  func,
12381                                  gpointer                user_data)
12382 {
12383   GtkTreePath *path;
12384
12385   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12386   g_return_if_fail (func != NULL);
12387
12388   path = gtk_tree_path_new_first ();
12389
12390   gtk_tree_view_map_expanded_rows_helper (tree_view,
12391                                           tree_view->priv->tree,
12392                                           path, func, user_data);
12393
12394   gtk_tree_path_free (path);
12395 }
12396
12397 /**
12398  * gtk_tree_view_row_expanded:
12399  * @tree_view: A #GtkTreeView.
12400  * @path: A #GtkTreePath to test expansion state.
12401  *
12402  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12403  *
12404  * Return value: %TRUE if #path is expanded.
12405  **/
12406 gboolean
12407 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12408                             GtkTreePath *path)
12409 {
12410   GtkRBTree *tree;
12411   GtkRBNode *node;
12412
12413   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12414   g_return_val_if_fail (path != NULL, FALSE);
12415
12416   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12417
12418   if (node == NULL)
12419     return FALSE;
12420
12421   return (node->children != NULL);
12422 }
12423
12424 /**
12425  * gtk_tree_view_get_reorderable:
12426  * @tree_view: a #GtkTreeView
12427  *
12428  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12429  * gtk_tree_view_set_reorderable().
12430  *
12431  * Return value: %TRUE if the tree can be reordered.
12432  **/
12433 gboolean
12434 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12435 {
12436   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12437
12438   return tree_view->priv->reorderable;
12439 }
12440
12441 /**
12442  * gtk_tree_view_set_reorderable:
12443  * @tree_view: A #GtkTreeView.
12444  * @reorderable: %TRUE, if the tree can be reordered.
12445  *
12446  * This function is a convenience function to allow you to reorder models that
12447  * support the #GtkDragSourceIface and the #GtkDragDestIface.  Both
12448  * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
12449  * the user can reorder the model by dragging and dropping rows.  The
12450  * developer can listen to these changes by connecting to the model's
12451  * row_inserted and row_deleted signals.
12452  *
12453  * This function does not give you any degree of control over the order -- any
12454  * reordering is allowed.  If more control is needed, you should probably
12455  * handle drag and drop manually.
12456  **/
12457 void
12458 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12459                                gboolean     reorderable)
12460 {
12461   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12462
12463   reorderable = reorderable != FALSE;
12464
12465   if (tree_view->priv->reorderable == reorderable)
12466     return;
12467
12468   if (reorderable)
12469     {
12470       const GtkTargetEntry row_targets[] = {
12471         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12472       };
12473
12474       gtk_tree_view_enable_model_drag_source (tree_view,
12475                                               GDK_BUTTON1_MASK,
12476                                               row_targets,
12477                                               G_N_ELEMENTS (row_targets),
12478                                               GDK_ACTION_MOVE);
12479       gtk_tree_view_enable_model_drag_dest (tree_view,
12480                                             row_targets,
12481                                             G_N_ELEMENTS (row_targets),
12482                                             GDK_ACTION_MOVE);
12483     }
12484   else
12485     {
12486       gtk_tree_view_unset_rows_drag_source (tree_view);
12487       gtk_tree_view_unset_rows_drag_dest (tree_view);
12488     }
12489
12490   tree_view->priv->reorderable = reorderable;
12491
12492   g_object_notify (G_OBJECT (tree_view), "reorderable");
12493 }
12494
12495 static void
12496 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12497                                GtkTreePath     *path,
12498                                gboolean         clear_and_select,
12499                                gboolean         clamp_node)
12500 {
12501   GtkRBTree *tree = NULL;
12502   GtkRBNode *node = NULL;
12503
12504   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12505     {
12506       GtkTreePath *cursor_path;
12507       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12508       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12509       gtk_tree_path_free (cursor_path);
12510     }
12511
12512   gtk_tree_row_reference_free (tree_view->priv->cursor);
12513   tree_view->priv->cursor = NULL;
12514
12515   /* One cannot set the cursor on a separator. */
12516   if (!row_is_separator (tree_view, NULL, path))
12517     {
12518       tree_view->priv->cursor =
12519         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12520                                           tree_view->priv->model,
12521                                           path);
12522       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12523     }
12524
12525   if (tree != NULL)
12526     {
12527       GtkRBTree *new_tree = NULL;
12528       GtkRBNode *new_node = NULL;
12529
12530       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12531         {
12532           GtkTreeSelectMode mode = 0;
12533
12534           if (tree_view->priv->ctrl_pressed)
12535             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12536           if (tree_view->priv->shift_pressed)
12537             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12538
12539           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12540                                                     node, tree, path, mode,
12541                                                     FALSE);
12542         }
12543
12544       /* We have to re-find tree and node here again, somebody might have
12545        * cleared the node or the whole tree in the GtkTreeSelection::changed
12546        * callback. If the nodes differ we bail out here.
12547        */
12548       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12549
12550       if (tree != new_tree || node != new_node)
12551         return;
12552
12553       if (clamp_node)
12554         {
12555           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12556           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12557         }
12558     }
12559
12560   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12561 }
12562
12563 /**
12564  * gtk_tree_view_get_cursor:
12565  * @tree_view: A #GtkTreeView
12566  * @path: A pointer to be filled with the current cursor path, or %NULL
12567  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12568  *
12569  * Fills in @path and @focus_column with the current path and focus column.  If
12570  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12571  * currently has focus, then *@focus_column will be %NULL.
12572  *
12573  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12574  * you are done with it.
12575  **/
12576 void
12577 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12578                           GtkTreePath       **path,
12579                           GtkTreeViewColumn **focus_column)
12580 {
12581   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12582
12583   if (path)
12584     {
12585       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12586         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12587       else
12588         *path = NULL;
12589     }
12590
12591   if (focus_column)
12592     {
12593       *focus_column = tree_view->priv->focus_column;
12594     }
12595 }
12596
12597 /**
12598  * gtk_tree_view_set_cursor:
12599  * @tree_view: A #GtkTreeView
12600  * @path: A #GtkTreePath
12601  * @focus_column: A #GtkTreeViewColumn, or %NULL
12602  * @start_editing: %TRUE if the specified cell should start being edited.
12603  *
12604  * Sets the current keyboard focus to be at @path, and selects it.  This is
12605  * useful when you want to focus the user's attention on a particular row.  If
12606  * @focus_column is not %NULL, then focus is given to the column specified by
12607  * it. Additionally, if @focus_column is specified, and @start_editing is
12608  * %TRUE, then editing should be started in the specified cell.
12609  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12610  * in order to give keyboard focus to the widget.  Please note that editing
12611  * can only happen when the widget is realized.
12612  **/
12613 void
12614 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12615                           GtkTreePath       *path,
12616                           GtkTreeViewColumn *focus_column,
12617                           gboolean           start_editing)
12618 {
12619   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12620                                     NULL, start_editing);
12621 }
12622
12623 /**
12624  * gtk_tree_view_set_cursor_on_cell:
12625  * @tree_view: A #GtkTreeView
12626  * @path: A #GtkTreePath
12627  * @focus_column: A #GtkTreeViewColumn, or %NULL
12628  * @focus_cell: A #GtkCellRenderer, or %NULL
12629  * @start_editing: %TRUE if the specified cell should start being edited.
12630  *
12631  * Sets the current keyboard focus to be at @path, and selects it.  This is
12632  * useful when you want to focus the user's attention on a particular row.  If
12633  * @focus_column is not %NULL, then focus is given to the column specified by
12634  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12635  * contains 2 or more editable or activatable cells, then focus is given to
12636  * the cell specified by @focus_cell. Additionally, if @focus_column is
12637  * specified, and @start_editing is %TRUE, then editing should be started in
12638  * the specified cell.  This function is often followed by
12639  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12640  * widget.  Please note that editing can only happen when the widget is
12641  * realized.
12642  *
12643  * Since: 2.2
12644  **/
12645 void
12646 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12647                                   GtkTreePath       *path,
12648                                   GtkTreeViewColumn *focus_column,
12649                                   GtkCellRenderer   *focus_cell,
12650                                   gboolean           start_editing)
12651 {
12652   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12653   g_return_if_fail (tree_view->priv->tree != NULL);
12654   g_return_if_fail (path != NULL);
12655   if (focus_column)
12656     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (focus_column));
12657   if (focus_cell)
12658     {
12659       g_return_if_fail (focus_column);
12660       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12661     }
12662
12663   /* cancel the current editing, if it exists */
12664   if (tree_view->priv->edited_column &&
12665       tree_view->priv->edited_column->editable_widget)
12666     gtk_tree_view_stop_editing (tree_view, TRUE);
12667
12668   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12669
12670   if (focus_column && focus_column->visible)
12671     {
12672       GList *list;
12673       gboolean column_in_tree = FALSE;
12674
12675       for (list = tree_view->priv->columns; list; list = list->next)
12676         if (list->data == focus_column)
12677           {
12678             column_in_tree = TRUE;
12679             break;
12680           }
12681       g_return_if_fail (column_in_tree);
12682       tree_view->priv->focus_column = focus_column;
12683       if (focus_cell)
12684         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12685       if (start_editing)
12686         gtk_tree_view_start_editing (tree_view, path);
12687     }
12688 }
12689
12690 /**
12691  * gtk_tree_view_get_bin_window:
12692  * @tree_view: A #GtkTreeView
12693  *
12694  * Returns the window that @tree_view renders to.  This is used primarily to
12695  * compare to <literal>event->window</literal> to confirm that the event on
12696  * @tree_view is on the right window.
12697  *
12698  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12699  **/
12700 GdkWindow *
12701 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12702 {
12703   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12704
12705   return tree_view->priv->bin_window;
12706 }
12707
12708 /**
12709  * gtk_tree_view_get_path_at_pos:
12710  * @tree_view: A #GtkTreeView.
12711  * @x: The x position to be identified (relative to bin_window).
12712  * @y: The y position to be identified (relative to bin_window).
12713  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12714  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12715  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12716  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12717  *
12718  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12719  * (please see gtk_tree_view_get_bin_window()).
12720  * That is, @x and @y are relative to an events coordinates. @x and @y must
12721  * come from an event on the @tree_view only where <literal>event->window ==
12722  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12723  * things like popup menus. If @path is non-%NULL, then it will be filled
12724  * with the #GtkTreePath at that point.  This path should be freed with
12725  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12726  * with the column at that point.  @cell_x and @cell_y return the coordinates
12727  * relative to the cell background (i.e. the @background_area passed to
12728  * gtk_cell_renderer_render()).  This function is only meaningful if
12729  * @tree_view is realized.
12730  *
12731  * For converting widget coordinates (eg. the ones you get from
12732  * GtkWidget::query-tooltip), please see
12733  * gtk_tree_view_convert_widget_to_bin_window_coords().
12734  *
12735  * Return value: %TRUE if a row exists at that coordinate.
12736  **/
12737 gboolean
12738 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12739                                gint                x,
12740                                gint                y,
12741                                GtkTreePath       **path,
12742                                GtkTreeViewColumn **column,
12743                                gint               *cell_x,
12744                                gint               *cell_y)
12745 {
12746   GtkRBTree *tree;
12747   GtkRBNode *node;
12748   gint y_offset;
12749
12750   g_return_val_if_fail (tree_view != NULL, FALSE);
12751   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
12752
12753   if (path)
12754     *path = NULL;
12755   if (column)
12756     *column = NULL;
12757
12758   if (tree_view->priv->tree == NULL)
12759     return FALSE;
12760
12761   if (x > tree_view->priv->hadjustment->upper)
12762     return FALSE;
12763
12764   if (x < 0 || y < 0)
12765     return FALSE;
12766
12767   if (column || cell_x)
12768     {
12769       GtkTreeViewColumn *tmp_column;
12770       GtkTreeViewColumn *last_column = NULL;
12771       GList *list;
12772       gint remaining_x = x;
12773       gboolean found = FALSE;
12774       gboolean rtl;
12775
12776       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12777       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12778            list;
12779            list = (rtl ? list->prev : list->next))
12780         {
12781           tmp_column = list->data;
12782
12783           if (tmp_column->visible == FALSE)
12784             continue;
12785
12786           last_column = tmp_column;
12787           if (remaining_x <= tmp_column->width)
12788             {
12789               found = TRUE;
12790
12791               if (column)
12792                 *column = tmp_column;
12793
12794               if (cell_x)
12795                 *cell_x = remaining_x;
12796
12797               break;
12798             }
12799           remaining_x -= tmp_column->width;
12800         }
12801
12802       /* If found is FALSE and there is a last_column, then it the remainder
12803        * space is in that area
12804        */
12805       if (!found)
12806         {
12807           if (last_column)
12808             {
12809               if (column)
12810                 *column = last_column;
12811
12812               if (cell_x)
12813                 *cell_x = last_column->width + remaining_x;
12814             }
12815           else
12816             {
12817               return FALSE;
12818             }
12819         }
12820     }
12821
12822   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12823                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12824                                       &tree, &node);
12825
12826   if (tree == NULL)
12827     return FALSE;
12828
12829   if (cell_y)
12830     *cell_y = y_offset;
12831
12832   if (path)
12833     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12834
12835   return TRUE;
12836 }
12837
12838
12839 /**
12840  * gtk_tree_view_get_cell_area:
12841  * @tree_view: a #GtkTreeView
12842  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12843  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12844  * @rect: rectangle to fill with cell rect
12845  *
12846  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12847  * row specified by @path and the column specified by @column.  If @path is
12848  * %NULL, or points to a path not currently displayed, the @y and @height fields
12849  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12850  * fields will be filled with 0.  The sum of all cell rects does not cover the
12851  * entire tree; there are extra pixels in between rows, for example. The
12852  * returned rectangle is equivalent to the @cell_area passed to
12853  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12854  * realized.
12855  **/
12856 void
12857 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12858                              GtkTreePath        *path,
12859                              GtkTreeViewColumn  *column,
12860                              GdkRectangle       *rect)
12861 {
12862   GtkRBTree *tree = NULL;
12863   GtkRBNode *node = NULL;
12864   gint vertical_separator;
12865   gint horizontal_separator;
12866
12867   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12868   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12869   g_return_if_fail (rect != NULL);
12870   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12871   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12872
12873   gtk_widget_style_get (GTK_WIDGET (tree_view),
12874                         "vertical-separator", &vertical_separator,
12875                         "horizontal-separator", &horizontal_separator,
12876                         NULL);
12877
12878   rect->x = 0;
12879   rect->y = 0;
12880   rect->width = 0;
12881   rect->height = 0;
12882
12883   if (column)
12884     {
12885       rect->x = column->button->allocation.x + horizontal_separator/2;
12886       rect->width = column->button->allocation.width - horizontal_separator;
12887     }
12888
12889   if (path)
12890     {
12891       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12892
12893       /* Get vertical coords */
12894       if ((!ret && tree == NULL) || ret)
12895         return;
12896
12897       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12898       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12899
12900       if (column &&
12901           gtk_tree_view_is_expander_column (tree_view, column))
12902         {
12903           gint depth = gtk_tree_path_get_depth (path);
12904           gboolean rtl;
12905
12906           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12907
12908           if (!rtl)
12909             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12910           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12911
12912           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12913             {
12914               if (!rtl)
12915                 rect->x += depth * tree_view->priv->expander_size;
12916               rect->width -= depth * tree_view->priv->expander_size;
12917             }
12918
12919           rect->width = MAX (rect->width, 0);
12920         }
12921     }
12922 }
12923
12924 /**
12925  * gtk_tree_view_get_background_area:
12926  * @tree_view: a #GtkTreeView
12927  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12928  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12929  * @rect: rectangle to fill with cell background rect
12930  *
12931  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12932  * row specified by @path and the column specified by @column.  If @path is
12933  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12934  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12935  * fields will be filled with 0.  The returned rectangle is equivalent to the
12936  * @background_area passed to gtk_cell_renderer_render().  These background
12937  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12938  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12939  * itself, excluding surrounding borders and the tree expander area.
12940  *
12941  **/
12942 void
12943 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12944                                    GtkTreePath        *path,
12945                                    GtkTreeViewColumn  *column,
12946                                    GdkRectangle       *rect)
12947 {
12948   GtkRBTree *tree = NULL;
12949   GtkRBNode *node = NULL;
12950
12951   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12952   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12953   g_return_if_fail (rect != NULL);
12954
12955   rect->x = 0;
12956   rect->y = 0;
12957   rect->width = 0;
12958   rect->height = 0;
12959
12960   if (path)
12961     {
12962       /* Get vertical coords */
12963
12964       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12965           tree == NULL)
12966         return;
12967
12968       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12969
12970       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12971     }
12972
12973   if (column)
12974     {
12975       gint x2 = 0;
12976
12977       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12978       rect->width = x2 - rect->x;
12979     }
12980 }
12981
12982 /**
12983  * gtk_tree_view_get_visible_rect:
12984  * @tree_view: a #GtkTreeView
12985  * @visible_rect: rectangle to fill
12986  *
12987  * Fills @visible_rect with the currently-visible region of the
12988  * buffer, in tree coordinates. Convert to bin_window coordinates with
12989  * gtk_tree_view_convert_tree_to_bin_window_coords().
12990  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12991  * scrollable area of the tree.
12992  **/
12993 void
12994 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12995                                 GdkRectangle *visible_rect)
12996 {
12997   GtkWidget *widget;
12998
12999   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13000
13001   widget = GTK_WIDGET (tree_view);
13002
13003   if (visible_rect)
13004     {
13005       visible_rect->x = tree_view->priv->hadjustment->value;
13006       visible_rect->y = tree_view->priv->vadjustment->value;
13007       visible_rect->width = widget->allocation.width;
13008       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13009     }
13010 }
13011
13012 /**
13013  * gtk_tree_view_widget_to_tree_coords:
13014  * @tree_view: a #GtkTreeView
13015  * @wx: X coordinate relative to bin_window
13016  * @wy: Y coordinate relative to bin_window
13017  * @tx: return location for tree X coordinate
13018  * @ty: return location for tree Y coordinate
13019  *
13020  * Converts bin_window coordinates to coordinates for the
13021  * tree (the full scrollable area of the tree).
13022  *
13023  * Deprecated: 2.12: Due to historial reasons the name of this function is
13024  * incorrect.  For converting coordinates relative to the widget to
13025  * bin_window coordinates, please see
13026  * gtk_tree_view_convert_widget_to_bin_window_coords().
13027  *
13028  **/
13029 void
13030 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
13031                                       gint         wx,
13032                                       gint         wy,
13033                                       gint        *tx,
13034                                       gint        *ty)
13035 {
13036   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13037
13038   if (tx)
13039     *tx = wx + tree_view->priv->hadjustment->value;
13040   if (ty)
13041     *ty = wy + tree_view->priv->dy;
13042 }
13043
13044 /**
13045  * gtk_tree_view_tree_to_widget_coords:
13046  * @tree_view: a #GtkTreeView
13047  * @tx: tree X coordinate
13048  * @ty: tree Y coordinate
13049  * @wx: return location for X coordinate relative to bin_window
13050  * @wy: return location for Y coordinate relative to bin_window
13051  *
13052  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13053  * to bin_window coordinates.
13054  *
13055  * Deprecated: 2.12: Due to historial reasons the name of this function is
13056  * incorrect.  For converting bin_window coordinates to coordinates relative
13057  * to bin_window, please see
13058  * gtk_tree_view_convert_bin_window_to_widget_coords().
13059  *
13060  **/
13061 void
13062 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13063                                      gint         tx,
13064                                      gint         ty,
13065                                      gint        *wx,
13066                                      gint        *wy)
13067 {
13068   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13069
13070   if (wx)
13071     *wx = tx - tree_view->priv->hadjustment->value;
13072   if (wy)
13073     *wy = ty - tree_view->priv->dy;
13074 }
13075
13076
13077 /**
13078  * gtk_tree_view_convert_widget_to_tree_coords:
13079  * @tree_view: a #GtkTreeView
13080  * @wx: X coordinate relative to the widget
13081  * @wy: Y coordinate relative to the widget
13082  * @tx: return location for tree X coordinate
13083  * @ty: return location for tree Y coordinate
13084  *
13085  * Converts widget coordinates to coordinates for the
13086  * tree (the full scrollable area of the tree).
13087  *
13088  * Since: 2.12
13089  **/
13090 void
13091 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13092                                              gint         wx,
13093                                              gint         wy,
13094                                              gint        *tx,
13095                                              gint        *ty)
13096 {
13097   gint x, y;
13098
13099   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13100
13101   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13102                                                      wx, wy,
13103                                                      &x, &y);
13104   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13105                                                    x, y,
13106                                                    tx, ty);
13107 }
13108
13109 /**
13110  * gtk_tree_view_convert_tree_to_widget_coords:
13111  * @tree_view: a #GtkTreeView
13112  * @tx: X coordinate relative to the tree
13113  * @ty: Y coordinate relative to the tree
13114  * @wx: return location for widget X coordinate
13115  * @wy: return location for widget Y coordinate
13116  *
13117  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13118  * to widget coordinates.
13119  *
13120  * Since: 2.12
13121  **/
13122 void
13123 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13124                                              gint         tx,
13125                                              gint         ty,
13126                                              gint        *wx,
13127                                              gint        *wy)
13128 {
13129   gint x, y;
13130
13131   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13132
13133   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13134                                                    tx, ty,
13135                                                    &x, &y);
13136   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13137                                                      x, y,
13138                                                      wx, wy);
13139 }
13140
13141 /**
13142  * gtk_tree_view_convert_widget_to_bin_window_coords:
13143  * @tree_view: a #GtkTreeView
13144  * @wx: X coordinate relative to the widget
13145  * @wy: Y coordinate relative to the widget
13146  * @bx: return location for bin_window X coordinate
13147  * @by: return location for bin_window Y coordinate
13148  *
13149  * Converts widget coordinates to coordinates for the bin_window
13150  * (see gtk_tree_view_get_bin_window()).
13151  *
13152  * Since: 2.12
13153  **/
13154 void
13155 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13156                                                    gint         wx,
13157                                                    gint         wy,
13158                                                    gint        *bx,
13159                                                    gint        *by)
13160 {
13161   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13162
13163   if (bx)
13164     *bx = wx + tree_view->priv->hadjustment->value;
13165   if (by)
13166     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13167 }
13168
13169 /**
13170  * gtk_tree_view_convert_bin_window_to_widget_coords:
13171  * @tree_view: a #GtkTreeView
13172  * @bx: bin_window X coordinate
13173  * @by: bin_window Y coordinate
13174  * @wx: return location for widget X coordinate
13175  * @wy: return location for widget Y coordinate
13176  *
13177  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13178  * to widget relative coordinates.
13179  *
13180  * Since: 2.12
13181  **/
13182 void
13183 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13184                                                    gint         bx,
13185                                                    gint         by,
13186                                                    gint        *wx,
13187                                                    gint        *wy)
13188 {
13189   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13190
13191   if (wx)
13192     *wx = bx - tree_view->priv->hadjustment->value;
13193   if (wy)
13194     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13195 }
13196
13197 /**
13198  * gtk_tree_view_convert_tree_to_bin_window_coords:
13199  * @tree_view: a #GtkTreeView
13200  * @tx: tree X coordinate
13201  * @ty: tree Y coordinate
13202  * @bx: return location for X coordinate relative to bin_window
13203  * @by: return location for Y coordinate relative to bin_window
13204  *
13205  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13206  * to bin_window coordinates.
13207  *
13208  * Since: 2.12
13209  **/
13210 void
13211 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13212                                                  gint         tx,
13213                                                  gint         ty,
13214                                                  gint        *bx,
13215                                                  gint        *by)
13216 {
13217   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13218
13219   if (bx)
13220     *bx = tx;
13221   if (by)
13222     *by = ty - tree_view->priv->dy;
13223 }
13224
13225 /**
13226  * gtk_tree_view_convert_bin_window_to_tree_coords:
13227  * @tree_view: a #GtkTreeView
13228  * @bx: X coordinate relative to bin_window
13229  * @by: Y coordinate relative to bin_window
13230  * @tx: return location for tree X coordinate
13231  * @ty: return location for tree Y coordinate
13232  *
13233  * Converts bin_window coordinates to coordinates for the
13234  * tree (the full scrollable area of the tree).
13235  *
13236  * Since: 2.12
13237  **/
13238 void
13239 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13240                                                  gint         bx,
13241                                                  gint         by,
13242                                                  gint        *tx,
13243                                                  gint        *ty)
13244 {
13245   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13246
13247   if (tx)
13248     *tx = bx;
13249   if (ty)
13250     *ty = by + tree_view->priv->dy;
13251 }
13252
13253
13254
13255 /**
13256  * gtk_tree_view_get_visible_range:
13257  * @tree_view: A #GtkTreeView
13258  * @start_path: Return location for start of region, or %NULL.
13259  * @end_path: Return location for end of region, or %NULL.
13260  *
13261  * Sets @start_path and @end_path to be the first and last visible path.
13262  * Note that there may be invisible paths in between.
13263  *
13264  * The paths should be freed with gtk_tree_path_free() after use.
13265  *
13266  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13267  *
13268  * Since: 2.8
13269  **/
13270 gboolean
13271 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13272                                  GtkTreePath **start_path,
13273                                  GtkTreePath **end_path)
13274 {
13275   GtkRBTree *tree;
13276   GtkRBNode *node;
13277   gboolean retval;
13278
13279   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13280
13281   if (!tree_view->priv->tree)
13282     return FALSE;
13283
13284   retval = TRUE;
13285
13286   if (start_path)
13287     {
13288       _gtk_rbtree_find_offset (tree_view->priv->tree,
13289                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13290                                &tree, &node);
13291       if (node)
13292         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13293       else
13294         retval = FALSE;
13295     }
13296
13297   if (end_path)
13298     {
13299       gint y;
13300
13301       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13302         y = tree_view->priv->height - 1;
13303       else
13304         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13305
13306       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13307       if (node)
13308         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13309       else
13310         retval = FALSE;
13311     }
13312
13313   return retval;
13314 }
13315
13316 static void
13317 unset_reorderable (GtkTreeView *tree_view)
13318 {
13319   if (tree_view->priv->reorderable)
13320     {
13321       tree_view->priv->reorderable = FALSE;
13322       g_object_notify (G_OBJECT (tree_view), "reorderable");
13323     }
13324 }
13325
13326 /**
13327  * gtk_tree_view_enable_model_drag_source:
13328  * @tree_view: a #GtkTreeView
13329  * @start_button_mask: Mask of allowed buttons to start drag
13330  * @targets: the table of targets that the drag will support
13331  * @n_targets: the number of items in @targets
13332  * @actions: the bitmask of possible actions for a drag from this
13333  *    widget
13334  *
13335  * Turns @tree_view into a drag source for automatic DND.
13336  **/
13337 void
13338 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13339                                         GdkModifierType           start_button_mask,
13340                                         const GtkTargetEntry     *targets,
13341                                         gint                      n_targets,
13342                                         GdkDragAction             actions)
13343 {
13344   TreeViewDragInfo *di;
13345
13346   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13347
13348   gtk_drag_source_set (GTK_WIDGET (tree_view),
13349                        0,
13350                        targets,
13351                        n_targets,
13352                        actions);
13353
13354   di = ensure_info (tree_view);
13355
13356   di->start_button_mask = start_button_mask;
13357   di->source_actions = actions;
13358   di->source_set = TRUE;
13359
13360   unset_reorderable (tree_view);
13361 }
13362
13363 /**
13364  * gtk_tree_view_enable_model_drag_dest:
13365  * @tree_view: a #GtkTreeView
13366  * @targets: the table of targets that the drag will support
13367  * @n_targets: the number of items in @targets
13368  * @actions: the bitmask of possible actions for a drag from this
13369  *    widget
13370  *
13371  * Turns @tree_view into a drop destination for automatic DND.
13372  **/
13373 void
13374 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13375                                       const GtkTargetEntry     *targets,
13376                                       gint                      n_targets,
13377                                       GdkDragAction             actions)
13378 {
13379   TreeViewDragInfo *di;
13380
13381   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13382
13383   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13384                      0,
13385                      targets,
13386                      n_targets,
13387                      actions);
13388
13389   di = ensure_info (tree_view);
13390   di->dest_set = TRUE;
13391
13392   unset_reorderable (tree_view);
13393 }
13394
13395 /**
13396  * gtk_tree_view_unset_rows_drag_source:
13397  * @tree_view: a #GtkTreeView
13398  *
13399  * Undoes the effect of gtk_tree_view_enable_model_drag_source().
13400  **/
13401 void
13402 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13403 {
13404   TreeViewDragInfo *di;
13405
13406   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13407
13408   di = get_info (tree_view);
13409
13410   if (di)
13411     {
13412       if (di->source_set)
13413         {
13414           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13415           di->source_set = FALSE;
13416         }
13417
13418       if (!di->dest_set && !di->source_set)
13419         remove_info (tree_view);
13420     }
13421
13422   unset_reorderable (tree_view);
13423 }
13424
13425 /**
13426  * gtk_tree_view_unset_rows_drag_dest:
13427  * @tree_view: a #GtkTreeView
13428  *
13429  * Undoes the effect of gtk_tree_view_enable_model_drag_dest().
13430  **/
13431 void
13432 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13433 {
13434   TreeViewDragInfo *di;
13435
13436   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13437
13438   di = get_info (tree_view);
13439
13440   if (di)
13441     {
13442       if (di->dest_set)
13443         {
13444           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13445           di->dest_set = FALSE;
13446         }
13447
13448       if (!di->dest_set && !di->source_set)
13449         remove_info (tree_view);
13450     }
13451
13452   unset_reorderable (tree_view);
13453 }
13454
13455 /**
13456  * gtk_tree_view_set_drag_dest_row:
13457  * @tree_view: a #GtkTreeView
13458  * @path: The path of the row to highlight, or %NULL.
13459  * @pos: Specifies whether to drop before, after or into the row
13460  *
13461  * Sets the row that is highlighted for feedback.
13462  **/
13463 void
13464 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13465                                  GtkTreePath            *path,
13466                                  GtkTreeViewDropPosition pos)
13467 {
13468   GtkTreePath *current_dest;
13469
13470   /* Note; this function is exported to allow a custom DND
13471    * implementation, so it can't touch TreeViewDragInfo
13472    */
13473
13474   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13475
13476   current_dest = NULL;
13477
13478   if (tree_view->priv->drag_dest_row)
13479     {
13480       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13481       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13482     }
13483
13484   /* special case a drop on an empty model */
13485   tree_view->priv->empty_view_drop = 0;
13486
13487   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13488       && gtk_tree_path_get_depth (path) == 1
13489       && gtk_tree_path_get_indices (path)[0] == 0)
13490     {
13491       gint n_children;
13492
13493       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13494                                                    NULL);
13495
13496       if (!n_children)
13497         tree_view->priv->empty_view_drop = 1;
13498     }
13499
13500   tree_view->priv->drag_dest_pos = pos;
13501
13502   if (path)
13503     {
13504       tree_view->priv->drag_dest_row =
13505         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13506       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13507     }
13508   else
13509     tree_view->priv->drag_dest_row = NULL;
13510
13511   if (current_dest)
13512     {
13513       GtkRBTree *tree, *new_tree;
13514       GtkRBNode *node, *new_node;
13515
13516       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13517       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13518
13519       if (tree && node)
13520         {
13521           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13522           if (new_tree && new_node)
13523             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13524
13525           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13526           if (new_tree && new_node)
13527             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13528         }
13529       gtk_tree_path_free (current_dest);
13530     }
13531 }
13532
13533 /**
13534  * gtk_tree_view_get_drag_dest_row:
13535  * @tree_view: a #GtkTreeView
13536  * @path: Return location for the path of the highlighted row, or %NULL.
13537  * @pos: Return location for the drop position, or %NULL
13538  *
13539  * Gets information about the row that is highlighted for feedback.
13540  **/
13541 void
13542 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13543                                  GtkTreePath             **path,
13544                                  GtkTreeViewDropPosition  *pos)
13545 {
13546   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13547
13548   if (path)
13549     {
13550       if (tree_view->priv->drag_dest_row)
13551         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13552       else
13553         {
13554           if (tree_view->priv->empty_view_drop)
13555             *path = gtk_tree_path_new_from_indices (0, -1);
13556           else
13557             *path = NULL;
13558         }
13559     }
13560
13561   if (pos)
13562     *pos = tree_view->priv->drag_dest_pos;
13563 }
13564
13565 /**
13566  * gtk_tree_view_get_dest_row_at_pos:
13567  * @tree_view: a #GtkTreeView
13568  * @drag_x: the position to determine the destination row for
13569  * @drag_y: the position to determine the destination row for
13570  * @path: Return location for the path of the highlighted row, or %NULL.
13571  * @pos: Return location for the drop position, or %NULL
13572  *
13573  * Determines the destination row for a given position.  @drag_x and
13574  * @drag_y are expected to be in widget coordinates.
13575  *
13576  * Return value: whether there is a row at the given position.
13577  **/
13578 gboolean
13579 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13580                                    gint                     drag_x,
13581                                    gint                     drag_y,
13582                                    GtkTreePath            **path,
13583                                    GtkTreeViewDropPosition *pos)
13584 {
13585   gint cell_y;
13586   gint bin_x, bin_y;
13587   gdouble offset_into_row;
13588   gdouble third;
13589   GdkRectangle cell;
13590   GtkTreeViewColumn *column = NULL;
13591   GtkTreePath *tmp_path = NULL;
13592
13593   /* Note; this function is exported to allow a custom DND
13594    * implementation, so it can't touch TreeViewDragInfo
13595    */
13596
13597   g_return_val_if_fail (tree_view != NULL, FALSE);
13598   g_return_val_if_fail (drag_x >= 0, FALSE);
13599   g_return_val_if_fail (drag_y >= 0, FALSE);
13600   g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
13601
13602
13603   if (path)
13604     *path = NULL;
13605
13606   if (tree_view->priv->tree == NULL)
13607     return FALSE;
13608
13609   /* If in the top third of a row, we drop before that row; if
13610    * in the bottom third, drop after that row; if in the middle,
13611    * and the row has children, drop into the row.
13612    */
13613   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13614                                                      &bin_x, &bin_y);
13615
13616   if (!gtk_tree_view_get_path_at_pos (tree_view,
13617                                       bin_x,
13618                                       bin_y,
13619                                       &tmp_path,
13620                                       &column,
13621                                       NULL,
13622                                       &cell_y))
13623     return FALSE;
13624
13625   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13626                                      &cell);
13627
13628   offset_into_row = cell_y;
13629
13630   if (path)
13631     *path = tmp_path;
13632   else
13633     gtk_tree_path_free (tmp_path);
13634
13635   tmp_path = NULL;
13636
13637   third = cell.height / 3.0;
13638
13639   if (pos)
13640     {
13641       if (offset_into_row < third)
13642         {
13643           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13644         }
13645       else if (offset_into_row < (cell.height / 2.0))
13646         {
13647           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13648         }
13649       else if (offset_into_row < third * 2.0)
13650         {
13651           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13652         }
13653       else
13654         {
13655           *pos = GTK_TREE_VIEW_DROP_AFTER;
13656         }
13657     }
13658
13659   return TRUE;
13660 }
13661
13662
13663
13664 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13665 /**
13666  * gtk_tree_view_create_row_drag_icon:
13667  * @tree_view: a #GtkTreeView
13668  * @path: a #GtkTreePath in @tree_view
13669  *
13670  * Creates a #GdkPixmap representation of the row at @path.
13671  * This image is used for a drag icon.
13672  *
13673  * Return value: a newly-allocated pixmap of the drag icon.
13674  **/
13675 GdkPixmap *
13676 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13677                                     GtkTreePath  *path)
13678 {
13679   GtkTreeIter   iter;
13680   GtkRBTree    *tree;
13681   GtkRBNode    *node;
13682   gint cell_offset;
13683   GList *list;
13684   GdkRectangle background_area;
13685   GdkRectangle expose_area;
13686   GtkWidget *widget;
13687   gint depth;
13688   /* start drawing inside the black outline */
13689   gint x = 1, y = 1;
13690   GdkDrawable *drawable;
13691   gint bin_window_width;
13692   gboolean is_separator = FALSE;
13693   gboolean rtl;
13694
13695   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13696   g_return_val_if_fail (path != NULL, NULL);
13697
13698   widget = GTK_WIDGET (tree_view);
13699
13700   if (!GTK_WIDGET_REALIZED (tree_view))
13701     return NULL;
13702
13703   depth = gtk_tree_path_get_depth (path);
13704
13705   _gtk_tree_view_find_node (tree_view,
13706                             path,
13707                             &tree,
13708                             &node);
13709
13710   if (tree == NULL)
13711     return NULL;
13712
13713   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13714                                 &iter,
13715                                 path))
13716     return NULL;
13717
13718   is_separator = row_is_separator (tree_view, &iter, NULL);
13719
13720   cell_offset = x;
13721
13722   background_area.y = y;
13723   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13724
13725   gdk_drawable_get_size (tree_view->priv->bin_window,
13726                          &bin_window_width, NULL);
13727
13728   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13729                              bin_window_width + 2,
13730                              background_area.height + 2,
13731                              -1);
13732
13733   expose_area.x = 0;
13734   expose_area.y = 0;
13735   expose_area.width = bin_window_width + 2;
13736   expose_area.height = background_area.height + 2;
13737
13738   gdk_draw_rectangle (drawable,
13739                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13740                       TRUE,
13741                       0, 0,
13742                       bin_window_width + 2,
13743                       background_area.height + 2);
13744
13745   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13746
13747   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13748       list;
13749       list = (rtl ? list->prev : list->next))
13750     {
13751       GtkTreeViewColumn *column = list->data;
13752       GdkRectangle cell_area;
13753       gint vertical_separator;
13754
13755       if (!column->visible)
13756         continue;
13757
13758       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13759                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13760                                                node->children?TRUE:FALSE);
13761
13762       background_area.x = cell_offset;
13763       background_area.width = column->width;
13764
13765       gtk_widget_style_get (widget,
13766                             "vertical-separator", &vertical_separator,
13767                             NULL);
13768
13769       cell_area = background_area;
13770
13771       cell_area.y += vertical_separator / 2;
13772       cell_area.height -= vertical_separator;
13773
13774       if (gtk_tree_view_is_expander_column (tree_view, column))
13775         {
13776           if (!rtl)
13777             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13778           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13779
13780           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13781             {
13782               if (!rtl)
13783                 cell_area.x += depth * tree_view->priv->expander_size;
13784               cell_area.width -= depth * tree_view->priv->expander_size;
13785             }
13786         }
13787
13788       if (gtk_tree_view_column_cell_is_visible (column))
13789         {
13790           if (is_separator)
13791             gtk_paint_hline (widget->style,
13792                              drawable,
13793                              GTK_STATE_NORMAL,
13794                              &cell_area,
13795                              widget,
13796                              NULL,
13797                              cell_area.x,
13798                              cell_area.x + cell_area.width,
13799                              cell_area.y + cell_area.height / 2);
13800           else
13801             _gtk_tree_view_column_cell_render (column,
13802                                                drawable,
13803                                                &background_area,
13804                                                &cell_area,
13805                                                &expose_area,
13806                                                0);
13807         }
13808       cell_offset += column->width;
13809     }
13810
13811   gdk_draw_rectangle (drawable,
13812                       widget->style->black_gc,
13813                       FALSE,
13814                       0, 0,
13815                       bin_window_width + 1,
13816                       background_area.height + 1);
13817
13818   return drawable;
13819 }
13820
13821
13822 /**
13823  * gtk_tree_view_set_destroy_count_func:
13824  * @tree_view: A #GtkTreeView
13825  * @func: Function to be called when a view row is destroyed, or %NULL
13826  * @data: User data to be passed to @func, or %NULL
13827  * @destroy: Destroy notifier for @data, or %NULL
13828  *
13829  * This function should almost never be used.  It is meant for private use by
13830  * ATK for determining the number of visible children that are removed when the
13831  * user collapses a row, or a row is deleted.
13832  **/
13833 void
13834 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13835                                       GtkTreeDestroyCountFunc  func,
13836                                       gpointer                 data,
13837                                       GDestroyNotify           destroy)
13838 {
13839   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13840
13841   if (tree_view->priv->destroy_count_destroy)
13842     (* tree_view->priv->destroy_count_destroy) (tree_view->priv->destroy_count_data);
13843
13844   tree_view->priv->destroy_count_func = func;
13845   tree_view->priv->destroy_count_data = data;
13846   tree_view->priv->destroy_count_destroy = destroy;
13847 }
13848
13849
13850 /*
13851  * Interactive search
13852  */
13853
13854 /**
13855  * gtk_tree_view_set_enable_search:
13856  * @tree_view: A #GtkTreeView
13857  * @enable_search: %TRUE, if the user can search interactively
13858  *
13859  * If @enable_search is set, then the user can type in text to search through
13860  * the tree interactively (this is sometimes called "typeahead find").
13861  *
13862  * Note that even if this is %FALSE, the user can still initiate a search
13863  * using the "start-interactive-search" key binding.
13864  */
13865 void
13866 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13867                                  gboolean     enable_search)
13868 {
13869   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13870
13871   enable_search = !!enable_search;
13872
13873   if (tree_view->priv->enable_search != enable_search)
13874     {
13875        tree_view->priv->enable_search = enable_search;
13876        g_object_notify (G_OBJECT (tree_view), "enable-search");
13877     }
13878 }
13879
13880 /**
13881  * gtk_tree_view_get_enable_search:
13882  * @tree_view: A #GtkTreeView
13883  *
13884  * Returns whether or not the tree allows to start interactive searching
13885  * by typing in text.
13886  *
13887  * Return value: whether or not to let the user search interactively
13888  */
13889 gboolean
13890 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13891 {
13892   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13893
13894   return tree_view->priv->enable_search;
13895 }
13896
13897
13898 /**
13899  * gtk_tree_view_get_search_column:
13900  * @tree_view: A #GtkTreeView
13901  *
13902  * Gets the column searched on by the interactive search code.
13903  *
13904  * Return value: the column the interactive search code searches in.
13905  */
13906 gint
13907 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13908 {
13909   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13910
13911   return (tree_view->priv->search_column);
13912 }
13913
13914 /**
13915  * gtk_tree_view_set_search_column:
13916  * @tree_view: A #GtkTreeView
13917  * @column: the column of the model to search in, or -1 to disable searching
13918  *
13919  * Sets @column as the column where the interactive search code should
13920  * search in for the current model.
13921  *
13922  * If the search column is set, users can use the "start-interactive-search"
13923  * key binding to bring up search popup. The enable-search property controls
13924  * whether simply typing text will also start an interactive search.
13925  *
13926  * Note that @column refers to a column of the current model. The search
13927  * column is reset to -1 when the model is changed.
13928  */
13929 void
13930 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13931                                  gint         column)
13932 {
13933   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13934   g_return_if_fail (column >= -1);
13935
13936   if (tree_view->priv->search_column == column)
13937     return;
13938
13939   tree_view->priv->search_column = column;
13940   g_object_notify (G_OBJECT (tree_view), "search-column");
13941 }
13942
13943 /**
13944  * gtk_tree_view_get_search_equal_func:
13945  * @tree_view: A #GtkTreeView
13946  *
13947  * Returns the compare function currently in use.
13948  *
13949  * Return value: the currently used compare function for the search code.
13950  */
13951
13952 GtkTreeViewSearchEqualFunc
13953 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13954 {
13955   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13956
13957   return tree_view->priv->search_equal_func;
13958 }
13959
13960 /**
13961  * gtk_tree_view_set_search_equal_func:
13962  * @tree_view: A #GtkTreeView
13963  * @search_equal_func: the compare function to use during the search
13964  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13965  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13966  *
13967  * Sets the compare function for the interactive search capabilities; note
13968  * that somewhat like strcmp() returning 0 for equality
13969  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13970  **/
13971 void
13972 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13973                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13974                                      gpointer                    search_user_data,
13975                                      GDestroyNotify              search_destroy)
13976 {
13977   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13978   g_return_if_fail (search_equal_func != NULL);
13979
13980   if (tree_view->priv->search_destroy)
13981     (* tree_view->priv->search_destroy) (tree_view->priv->search_user_data);
13982
13983   tree_view->priv->search_equal_func = search_equal_func;
13984   tree_view->priv->search_user_data = search_user_data;
13985   tree_view->priv->search_destroy = search_destroy;
13986   if (tree_view->priv->search_equal_func == NULL)
13987     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13988 }
13989
13990 /**
13991  * gtk_tree_view_get_search_entry:
13992  * @tree_view: A #GtkTreeView
13993  *
13994  * Returns the GtkEntry which is currently in use as interactive search
13995  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13996  * will be returned.
13997  *
13998  * Return value: the entry currently in use as search entry.
13999  *
14000  * Since: 2.10
14001  */
14002 GtkEntry *
14003 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14004 {
14005   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14006
14007   if (tree_view->priv->search_custom_entry_set)
14008     return GTK_ENTRY (tree_view->priv->search_entry);
14009
14010   return NULL;
14011 }
14012
14013 /**
14014  * gtk_tree_view_set_search_entry:
14015  * @tree_view: A #GtkTreeView
14016  * @entry: the entry the interactive search code of @tree_view should use or %NULL
14017  *
14018  * Sets the entry which the interactive search code will use for this
14019  * @tree_view.  This is useful when you want to provide a search entry
14020  * in our interface at all time at a fixed position.  Passing %NULL for
14021  * @entry will make the interactive search code use the built-in popup
14022  * entry again.
14023  *
14024  * Since: 2.10
14025  */
14026 void
14027 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14028                                 GtkEntry    *entry)
14029 {
14030   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14031   if (entry != NULL)
14032     g_return_if_fail (GTK_IS_ENTRY (entry));
14033
14034   if (tree_view->priv->search_custom_entry_set)
14035     {
14036       if (tree_view->priv->search_entry_changed_id)
14037         {
14038           g_signal_handler_disconnect (tree_view->priv->search_entry,
14039                                        tree_view->priv->search_entry_changed_id);
14040           tree_view->priv->search_entry_changed_id = 0;
14041         }
14042       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14043                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14044                                             tree_view);
14045
14046       g_object_unref (tree_view->priv->search_entry);
14047     }
14048   else if (tree_view->priv->search_window)
14049     {
14050       gtk_widget_destroy (tree_view->priv->search_window);
14051
14052       tree_view->priv->search_window = NULL;
14053     }
14054
14055   if (entry)
14056     {
14057       tree_view->priv->search_entry = g_object_ref (entry);
14058       tree_view->priv->search_custom_entry_set = TRUE;
14059
14060       if (tree_view->priv->search_entry_changed_id == 0)
14061         {
14062           tree_view->priv->search_entry_changed_id =
14063             g_signal_connect (tree_view->priv->search_entry, "changed",
14064                               G_CALLBACK (gtk_tree_view_search_init),
14065                               tree_view);
14066         }
14067
14068         g_signal_connect (tree_view->priv->search_entry, "key_press_event",
14069                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14070                           tree_view);
14071
14072         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14073     }
14074   else
14075     {
14076       tree_view->priv->search_entry = NULL;
14077       tree_view->priv->search_custom_entry_set = FALSE;
14078     }
14079 }
14080
14081 /**
14082  * gtk_tree_view_set_search_position_func:
14083  * @tree_view: A #GtkTreeView
14084  * @func: the function to use to position the search dialog, or %NULL
14085  *    to use the default search position function
14086  * @data: user data to pass to @func, or %NULL
14087  * @destroy: Destroy notifier for @data, or %NULL
14088  *
14089  * Sets the function to use when positioning the seach dialog.
14090  *
14091  * Since: 2.10
14092  **/
14093 void
14094 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14095                                         GtkTreeViewSearchPositionFunc  func,
14096                                         gpointer                       user_data,
14097                                         GDestroyNotify                 destroy)
14098 {
14099   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14100
14101   if (tree_view->priv->search_position_destroy)
14102     (* tree_view->priv->search_position_destroy) (tree_view->priv->search_position_user_data);
14103
14104   tree_view->priv->search_position_func = func;
14105   tree_view->priv->search_position_user_data = user_data;
14106   tree_view->priv->search_position_destroy = destroy;
14107   if (tree_view->priv->search_position_func == NULL)
14108     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14109 }
14110
14111 /**
14112  * gtk_tree_view_get_search_position_func:
14113  * @tree_view: A #GtkTreeView
14114  *
14115  * Returns the positioning function currently in use.
14116  *
14117  * Return value: the currently used function for positioning the search dialog.
14118  *
14119  * Since: 2.10
14120  */
14121 GtkTreeViewSearchPositionFunc
14122 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14123 {
14124   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14125
14126   return tree_view->priv->search_position_func;
14127 }
14128
14129
14130 static void
14131 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14132                                   GtkTreeView *tree_view)
14133 {
14134   if (tree_view->priv->disable_popdown)
14135     return;
14136
14137   if (tree_view->priv->search_entry_changed_id)
14138     {
14139       g_signal_handler_disconnect (tree_view->priv->search_entry,
14140                                    tree_view->priv->search_entry_changed_id);
14141       tree_view->priv->search_entry_changed_id = 0;
14142     }
14143   if (tree_view->priv->typeselect_flush_timeout)
14144     {
14145       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14146       tree_view->priv->typeselect_flush_timeout = 0;
14147     }
14148
14149   if (GTK_WIDGET_VISIBLE (search_dialog))
14150     {
14151       /* send focus-in event */
14152       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14153       gtk_widget_hide (search_dialog);
14154       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14155       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14156     }
14157 }
14158
14159 static void
14160 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14161                                     GtkWidget   *search_dialog,
14162                                     gpointer     user_data)
14163 {
14164   gint x, y;
14165   gint tree_x, tree_y;
14166   gint tree_width, tree_height;
14167   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14168   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14169   GtkRequisition requisition;
14170   gint monitor_num;
14171   GdkRectangle monitor;
14172
14173   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14174   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14175
14176   gtk_widget_realize (search_dialog);
14177
14178   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14179   gdk_drawable_get_size (tree_window,
14180                          &tree_width,
14181                          &tree_height);
14182   gtk_widget_size_request (search_dialog, &requisition);
14183
14184   if (tree_x + tree_width > gdk_screen_get_width (screen))
14185     x = gdk_screen_get_width (screen) - requisition.width;
14186   else if (tree_x + tree_width - requisition.width < 0)
14187     x = 0;
14188   else
14189     x = tree_x + tree_width - requisition.width;
14190
14191   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14192     y = gdk_screen_get_height (screen) - requisition.height;
14193   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14194     y = 0;
14195   else
14196     y = tree_y + tree_height;
14197
14198   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14199 }
14200
14201 static void
14202 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14203                                       GtkMenu  *menu,
14204                                       gpointer  data)
14205 {
14206   GtkTreeView *tree_view = (GtkTreeView *)data;
14207
14208   tree_view->priv->disable_popdown = 1;
14209   g_signal_connect (menu, "hide",
14210                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14211 }
14212
14213 /* Because we're visible but offscreen, we just set a flag in the preedit
14214  * callback.
14215  */
14216 static void
14217 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14218                                       GtkTreeView  *tree_view)
14219 {
14220   tree_view->priv->imcontext_changed = 1;
14221   if (tree_view->priv->typeselect_flush_timeout)
14222     {
14223       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14224       tree_view->priv->typeselect_flush_timeout =
14225         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14226                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14227                        tree_view);
14228     }
14229
14230 }
14231
14232 static void
14233 gtk_tree_view_search_activate (GtkEntry    *entry,
14234                                GtkTreeView *tree_view)
14235 {
14236   GtkTreePath *path;
14237   GtkRBNode *node;
14238   GtkRBTree *tree;
14239
14240   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14241                                     tree_view);
14242
14243   /* If we have a row selected and it's the cursor row, we activate
14244    * the row XXX */
14245   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14246     {
14247       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14248
14249       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14250
14251       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14252         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14253
14254       gtk_tree_path_free (path);
14255     }
14256 }
14257
14258 static gboolean
14259 gtk_tree_view_real_search_enable_popdown (gpointer data)
14260 {
14261   GtkTreeView *tree_view = (GtkTreeView *)data;
14262
14263   tree_view->priv->disable_popdown = 0;
14264
14265   return FALSE;
14266 }
14267
14268 static void
14269 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14270                                      gpointer   data)
14271 {
14272   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14273 }
14274
14275 static gboolean
14276 gtk_tree_view_search_delete_event (GtkWidget *widget,
14277                                    GdkEventAny *event,
14278                                    GtkTreeView *tree_view)
14279 {
14280   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14281
14282   gtk_tree_view_search_dialog_hide (widget, tree_view);
14283
14284   return TRUE;
14285 }
14286
14287 static gboolean
14288 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14289                                          GdkEventButton *event,
14290                                          GtkTreeView *tree_view)
14291 {
14292   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14293
14294   gtk_tree_view_search_dialog_hide (widget, tree_view);
14295
14296   if (event->window == tree_view->priv->bin_window)
14297     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14298
14299   return TRUE;
14300 }
14301
14302 static gboolean
14303 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14304                                    GdkEventScroll *event,
14305                                    GtkTreeView *tree_view)
14306 {
14307   gboolean retval = FALSE;
14308
14309   if (event->direction == GDK_SCROLL_UP)
14310     {
14311       gtk_tree_view_search_move (widget, tree_view, TRUE);
14312       retval = TRUE;
14313     }
14314   else if (event->direction == GDK_SCROLL_DOWN)
14315     {
14316       gtk_tree_view_search_move (widget, tree_view, FALSE);
14317       retval = TRUE;
14318     }
14319
14320   /* renew the flush timeout */
14321   if (retval && tree_view->priv->typeselect_flush_timeout
14322       && !tree_view->priv->search_custom_entry_set)
14323     {
14324       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14325       tree_view->priv->typeselect_flush_timeout =
14326         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14327                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14328                        tree_view);
14329     }
14330
14331   return retval;
14332 }
14333
14334 static gboolean
14335 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14336                                       GdkEventKey *event,
14337                                       GtkTreeView *tree_view)
14338 {
14339   gboolean retval = FALSE;
14340
14341   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14342   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14343
14344   /* close window and cancel the search */
14345   if (!tree_view->priv->search_custom_entry_set
14346       && (event->keyval == GDK_Escape ||
14347           event->keyval == GDK_Tab ||
14348             event->keyval == GDK_KP_Tab ||
14349             event->keyval == GDK_ISO_Left_Tab))
14350     {
14351       gtk_tree_view_search_dialog_hide (widget, tree_view);
14352       return TRUE;
14353     }
14354
14355   /* select previous matching iter */
14356   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14357     {
14358       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14359         gtk_widget_error_bell (widget);
14360
14361       retval = TRUE;
14362     }
14363
14364   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14365       && (event->keyval == GDK_g || event->keyval == GDK_G))
14366     {
14367       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14368         gtk_widget_error_bell (widget);
14369
14370       retval = TRUE;
14371     }
14372
14373   /* select next matching iter */
14374   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14375     {
14376       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14377         gtk_widget_error_bell (widget);
14378
14379       retval = TRUE;
14380     }
14381
14382   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14383       && (event->keyval == GDK_g || event->keyval == GDK_G))
14384     {
14385       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14386         gtk_widget_error_bell (widget);
14387
14388       retval = TRUE;
14389     }
14390
14391   /* renew the flush timeout */
14392   if (retval && tree_view->priv->typeselect_flush_timeout
14393       && !tree_view->priv->search_custom_entry_set)
14394     {
14395       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14396       tree_view->priv->typeselect_flush_timeout =
14397         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14398                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14399                        tree_view);
14400     }
14401
14402   return retval;
14403 }
14404
14405 /*  this function returns FALSE if there is a search string but
14406  *  nothing was found, and TRUE otherwise.
14407  */
14408 static gboolean
14409 gtk_tree_view_search_move (GtkWidget   *window,
14410                            GtkTreeView *tree_view,
14411                            gboolean     up)
14412 {
14413   gboolean ret;
14414   gint len;
14415   gint count = 0;
14416   const gchar *text;
14417   GtkTreeIter iter;
14418   GtkTreeModel *model;
14419   GtkTreeSelection *selection;
14420
14421   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14422
14423   g_return_val_if_fail (text != NULL, FALSE);
14424
14425   len = strlen (text);
14426
14427   if (up && tree_view->priv->selected_iter == 1)
14428     return strlen (text) < 1;
14429
14430   len = strlen (text);
14431
14432   if (len < 1)
14433     return TRUE;
14434
14435   model = gtk_tree_view_get_model (tree_view);
14436   selection = gtk_tree_view_get_selection (tree_view);
14437
14438   /* search */
14439   gtk_tree_selection_unselect_all (selection);
14440   if (!gtk_tree_model_get_iter_first (model, &iter))
14441     return TRUE;
14442
14443   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14444                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14445
14446   if (ret)
14447     {
14448       /* found */
14449       tree_view->priv->selected_iter += up?(-1):(1);
14450       return TRUE;
14451     }
14452   else
14453     {
14454       /* return to old iter */
14455       count = 0;
14456       gtk_tree_model_get_iter_first (model, &iter);
14457       gtk_tree_view_search_iter (model, selection,
14458                                  &iter, text,
14459                                  &count, tree_view->priv->selected_iter);
14460       return FALSE;
14461     }
14462 }
14463
14464 static gboolean
14465 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14466                                  gint          column,
14467                                  const gchar  *key,
14468                                  GtkTreeIter  *iter,
14469                                  gpointer      search_data)
14470 {
14471   gboolean retval = TRUE;
14472   const gchar *str;
14473   gchar *normalized_string;
14474   gchar *normalized_key;
14475   gchar *case_normalized_string = NULL;
14476   gchar *case_normalized_key = NULL;
14477   GValue value = {0,};
14478   GValue transformed = {0,};
14479
14480   gtk_tree_model_get_value (model, iter, column, &value);
14481
14482   g_value_init (&transformed, G_TYPE_STRING);
14483
14484   if (!g_value_transform (&value, &transformed))
14485     {
14486       g_value_unset (&value);
14487       return TRUE;
14488     }
14489
14490   g_value_unset (&value);
14491
14492   str = g_value_get_string (&transformed);
14493   if (!str)
14494     {
14495       g_value_unset (&transformed);
14496       return TRUE;
14497     }
14498
14499   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14500   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14501
14502   if (normalized_string && normalized_key)
14503     {
14504       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14505       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14506
14507       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14508         retval = FALSE;
14509     }
14510
14511   g_value_unset (&transformed);
14512   g_free (normalized_key);
14513   g_free (normalized_string);
14514   g_free (case_normalized_key);
14515   g_free (case_normalized_string);
14516
14517   return retval;
14518 }
14519
14520 static gboolean
14521 gtk_tree_view_search_iter (GtkTreeModel     *model,
14522                            GtkTreeSelection *selection,
14523                            GtkTreeIter      *iter,
14524                            const gchar      *text,
14525                            gint             *count,
14526                            gint              n)
14527 {
14528   GtkRBTree *tree = NULL;
14529   GtkRBNode *node = NULL;
14530   GtkTreePath *path;
14531
14532   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14533
14534   path = gtk_tree_model_get_path (model, iter);
14535   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14536
14537   do
14538     {
14539       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14540         {
14541           (*count)++;
14542           if (*count == n)
14543             {
14544               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14545                                             TRUE, 0.5, 0.0);
14546               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14547               gtk_tree_selection_select_iter (selection, iter);
14548
14549               if (path)
14550                 gtk_tree_path_free (path);
14551
14552               return TRUE;
14553             }
14554         }
14555
14556       if (node->children)
14557         {
14558           gboolean has_child;
14559           GtkTreeIter tmp;
14560
14561           tree = node->children;
14562           node = tree->root;
14563
14564           while (node->left != tree->nil)
14565             node = node->left;
14566
14567           tmp = *iter;
14568           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14569           gtk_tree_path_down (path);
14570
14571           /* sanity check */
14572           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14573         }
14574       else
14575         {
14576           gboolean done = FALSE;
14577
14578           do
14579             {
14580               node = _gtk_rbtree_next (tree, node);
14581
14582               if (node)
14583                 {
14584                   gboolean has_next;
14585
14586                   has_next = gtk_tree_model_iter_next (model, iter);
14587
14588                   done = TRUE;
14589                   gtk_tree_path_next (path);
14590
14591                   /* sanity check */
14592                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14593                 }
14594               else
14595                 {
14596                   gboolean has_parent;
14597                   GtkTreeIter tmp_iter = *iter;
14598
14599                   node = tree->parent_node;
14600                   tree = tree->parent_tree;
14601
14602                   if (!tree)
14603                     {
14604                       if (path)
14605                         gtk_tree_path_free (path);
14606
14607                       /* we've run out of tree, done with this func */
14608                       return FALSE;
14609                     }
14610
14611                   has_parent = gtk_tree_model_iter_parent (model,
14612                                                            iter,
14613                                                            &tmp_iter);
14614                   gtk_tree_path_up (path);
14615
14616                   /* sanity check */
14617                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14618                 }
14619             }
14620           while (!done);
14621         }
14622     }
14623   while (1);
14624
14625   return FALSE;
14626 }
14627
14628 static void
14629 gtk_tree_view_search_init (GtkWidget   *entry,
14630                            GtkTreeView *tree_view)
14631 {
14632   gint ret;
14633   gint len;
14634   gint count = 0;
14635   const gchar *text;
14636   GtkTreeIter iter;
14637   GtkTreeModel *model;
14638   GtkTreeSelection *selection;
14639
14640   g_return_if_fail (GTK_IS_ENTRY (entry));
14641   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14642
14643   text = gtk_entry_get_text (GTK_ENTRY (entry));
14644   len = strlen (text);
14645   model = gtk_tree_view_get_model (tree_view);
14646   selection = gtk_tree_view_get_selection (tree_view);
14647
14648   /* search */
14649   gtk_tree_selection_unselect_all (selection);
14650   if (tree_view->priv->typeselect_flush_timeout
14651       && !tree_view->priv->search_custom_entry_set)
14652     {
14653       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14654       tree_view->priv->typeselect_flush_timeout =
14655         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14656                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14657                        tree_view);
14658     }
14659
14660   if (len < 1)
14661     return;
14662
14663   if (!gtk_tree_model_get_iter_first (model, &iter))
14664     return;
14665
14666   ret = gtk_tree_view_search_iter (model, selection,
14667                                    &iter, text,
14668                                    &count, 1);
14669
14670   if (ret)
14671     tree_view->priv->selected_iter = 1;
14672 }
14673
14674 static void
14675 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14676                              GtkTreeView     *tree_view)
14677 {
14678   if (tree_view->priv->edited_column == NULL)
14679     return;
14680
14681   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14682   tree_view->priv->edited_column = NULL;
14683
14684   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14685     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14686
14687   g_signal_handlers_disconnect_by_func (cell_editable,
14688                                         gtk_tree_view_remove_widget,
14689                                         tree_view);
14690
14691   gtk_container_remove (GTK_CONTAINER (tree_view),
14692                         GTK_WIDGET (cell_editable));
14693
14694   /* FIXME should only redraw a single node */
14695   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14696 }
14697
14698 static gboolean
14699 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14700                              GtkTreePath *cursor_path)
14701 {
14702   GtkTreeIter iter;
14703   GdkRectangle background_area;
14704   GdkRectangle cell_area;
14705   GtkCellEditable *editable_widget = NULL;
14706   gchar *path_string;
14707   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14708   gint retval = FALSE;
14709   GtkRBTree *cursor_tree;
14710   GtkRBNode *cursor_node;
14711
14712   g_assert (tree_view->priv->focus_column);
14713
14714   if (! GTK_WIDGET_REALIZED (tree_view))
14715     return FALSE;
14716
14717   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14718       cursor_node == NULL)
14719     return FALSE;
14720
14721   path_string = gtk_tree_path_to_string (cursor_path);
14722   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14723
14724   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14725
14726   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14727                                            tree_view->priv->model,
14728                                            &iter,
14729                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14730                                            cursor_node->children?TRUE:FALSE);
14731   gtk_tree_view_get_background_area (tree_view,
14732                                      cursor_path,
14733                                      tree_view->priv->focus_column,
14734                                      &background_area);
14735   gtk_tree_view_get_cell_area (tree_view,
14736                                cursor_path,
14737                                tree_view->priv->focus_column,
14738                                &cell_area);
14739
14740   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14741                                         &editable_widget,
14742                                         NULL,
14743                                         path_string,
14744                                         &background_area,
14745                                         &cell_area,
14746                                         flags))
14747     {
14748       retval = TRUE;
14749       if (editable_widget != NULL)
14750         {
14751           gint left, right;
14752           GdkRectangle area;
14753           GtkCellRenderer *cell;
14754
14755           area = cell_area;
14756           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14757
14758           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14759
14760           area.x += left;
14761           area.width -= right + left;
14762
14763           gtk_tree_view_real_start_editing (tree_view,
14764                                             tree_view->priv->focus_column,
14765                                             cursor_path,
14766                                             editable_widget,
14767                                             &area,
14768                                             NULL,
14769                                             flags);
14770         }
14771
14772     }
14773   g_free (path_string);
14774   return retval;
14775 }
14776
14777 static void
14778 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14779                                   GtkTreeViewColumn *column,
14780                                   GtkTreePath       *path,
14781                                   GtkCellEditable   *cell_editable,
14782                                   GdkRectangle      *cell_area,
14783                                   GdkEvent          *event,
14784                                   guint              flags)
14785 {
14786   gint pre_val = tree_view->priv->vadjustment->value;
14787   GtkRequisition requisition;
14788
14789   tree_view->priv->edited_column = column;
14790   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14791
14792   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14793   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14794
14795   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14796
14797   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14798
14799   if (requisition.height < cell_area->height)
14800     {
14801       gint diff = cell_area->height - requisition.height;
14802       gtk_tree_view_put (tree_view,
14803                          GTK_WIDGET (cell_editable),
14804                          cell_area->x, cell_area->y + diff/2,
14805                          cell_area->width, requisition.height);
14806     }
14807   else
14808     {
14809       gtk_tree_view_put (tree_view,
14810                          GTK_WIDGET (cell_editable),
14811                          cell_area->x, cell_area->y,
14812                          cell_area->width, cell_area->height);
14813     }
14814
14815   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14816                                    (GdkEvent *)event);
14817
14818   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14819   g_signal_connect (cell_editable, "remove_widget",
14820                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14821 }
14822
14823 static void
14824 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14825                             gboolean     cancel_editing)
14826 {
14827   GtkTreeViewColumn *column;
14828   GtkCellRenderer *cell;
14829
14830   if (tree_view->priv->edited_column == NULL)
14831     return;
14832
14833   /*
14834    * This is very evil. We need to do this, because
14835    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14836    * later on. If gtk_tree_view_row_changed notices
14837    * tree_view->priv->edited_column != NULL, it'll call
14838    * gtk_tree_view_stop_editing again. Bad things will happen then.
14839    *
14840    * Please read that again if you intend to modify anything here.
14841    */
14842
14843   column = tree_view->priv->edited_column;
14844   tree_view->priv->edited_column = NULL;
14845
14846   cell = _gtk_tree_view_column_get_edited_cell (column);
14847   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14848
14849   if (!cancel_editing)
14850     gtk_cell_editable_editing_done (column->editable_widget);
14851
14852   tree_view->priv->edited_column = column;
14853
14854   gtk_cell_editable_remove_widget (column->editable_widget);
14855 }
14856
14857
14858 /**
14859  * gtk_tree_view_set_hover_selection:
14860  * @tree_view: a #GtkTreeView
14861  * @hover: %TRUE to enable hover selection mode
14862  *
14863  * Enables of disables the hover selection mode of @tree_view.
14864  * Hover selection makes the selected row follow the pointer.
14865  * Currently, this works only for the selection modes
14866  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14867  *
14868  * Since: 2.6
14869  **/
14870 void
14871 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14872                                    gboolean     hover)
14873 {
14874   hover = hover != FALSE;
14875
14876   if (hover != tree_view->priv->hover_selection)
14877     {
14878       tree_view->priv->hover_selection = hover;
14879
14880       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14881     }
14882 }
14883
14884 /**
14885  * gtk_tree_view_get_hover_selection:
14886  * @tree_view: a #GtkTreeView
14887  *
14888  * Returns whether hover selection mode is turned on for @tree_view.
14889  *
14890  * Return value: %TRUE if @tree_view is in hover selection mode
14891  *
14892  * Since: 2.6
14893  **/
14894 gboolean
14895 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14896 {
14897   return tree_view->priv->hover_selection;
14898 }
14899
14900 /**
14901  * gtk_tree_view_set_hover_expand:
14902  * @tree_view: a #GtkTreeView
14903  * @expand: %TRUE to enable hover selection mode
14904  *
14905  * Enables of disables the hover expansion mode of @tree_view.
14906  * Hover expansion makes rows expand or collaps if the pointer
14907  * moves over them.
14908  *
14909  * Since: 2.6
14910  **/
14911 void
14912 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14913                                 gboolean     expand)
14914 {
14915   expand = expand != FALSE;
14916
14917   if (expand != tree_view->priv->hover_expand)
14918     {
14919       tree_view->priv->hover_expand = expand;
14920
14921       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14922     }
14923 }
14924
14925 /**
14926  * gtk_tree_view_get_hover_expand:
14927  * @tree_view: a #GtkTreeView
14928  *
14929  * Returns whether hover expansion mode is turned on for @tree_view.
14930  *
14931  * Return value: %TRUE if @tree_view is in hover expansion mode
14932  *
14933  * Since: 2.6
14934  **/
14935 gboolean
14936 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14937 {
14938   return tree_view->priv->hover_expand;
14939 }
14940
14941 /**
14942  * gtk_tree_view_set_rubber_banding:
14943  * @tree_view: a #GtkTreeView
14944  * @enable: %TRUE to enable rubber banding
14945  *
14946  * Enables or disables rubber banding in @tree_view.  If the selection mode
14947  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14948  * multiple rows by dragging the mouse.
14949  *
14950  * Since: 2.10
14951  **/
14952 void
14953 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14954                                   gboolean     enable)
14955 {
14956   enable = enable != FALSE;
14957
14958   if (enable != tree_view->priv->rubber_banding_enable)
14959     {
14960       tree_view->priv->rubber_banding_enable = enable;
14961
14962       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14963     }
14964 }
14965
14966 /**
14967  * gtk_tree_view_get_rubber_banding:
14968  * @tree_view: a #GtkTreeView
14969  *
14970  * Returns whether rubber banding is turned on for @tree_view.  If the
14971  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14972  * user to select multiple rows by dragging the mouse.
14973  *
14974  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14975  *
14976  * Since: 2.10
14977  **/
14978 gboolean
14979 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14980 {
14981   return tree_view->priv->rubber_banding_enable;
14982 }
14983
14984 /**
14985  * gtk_tree_view_is_rubber_banding_active:
14986  * @tree_view: a #GtkTreeView
14987  *
14988  * Returns whether a rubber banding operation is currently being done
14989  * in @tree_view.
14990  *
14991  * Return value: %TRUE if a rubber banding operation is currently being
14992  * done in @tree_view.
14993  *
14994  * Since: 2.12
14995  **/
14996 gboolean
14997 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
14998 {
14999   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15000
15001   if (tree_view->priv->rubber_banding_enable
15002       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15003     return TRUE;
15004
15005   return FALSE;
15006 }
15007
15008 /**
15009  * gtk_tree_view_get_row_separator_func:
15010  * @tree_view: a #GtkTreeView
15011  *
15012  * Returns the current row separator function.
15013  *
15014  * Return value: the current row separator function.
15015  *
15016  * Since: 2.6
15017  **/
15018 GtkTreeViewRowSeparatorFunc
15019 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15020 {
15021   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15022
15023   return tree_view->priv->row_separator_func;
15024 }
15025
15026 /**
15027  * gtk_tree_view_set_row_separator_func:
15028  * @tree_view: a #GtkTreeView
15029  * @func: a #GtkTreeViewRowSeparatorFunc
15030  * @data: user data to pass to @func, or %NULL
15031  * @destroy: destroy notifier for @data, or %NULL
15032  *
15033  * Sets the row separator function, which is used to determine
15034  * whether a row should be drawn as a separator. If the row separator
15035  * function is %NULL, no separators are drawn. This is the default value.
15036  *
15037  * Since: 2.6
15038  **/
15039 void
15040 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15041                                       GtkTreeViewRowSeparatorFunc  func,
15042                                       gpointer                     data,
15043                                       GDestroyNotify               destroy)
15044 {
15045   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15046
15047   if (tree_view->priv->row_separator_destroy)
15048     (* tree_view->priv->row_separator_destroy) (tree_view->priv->row_separator_data);
15049
15050   tree_view->priv->row_separator_func = func;
15051   tree_view->priv->row_separator_data = data;
15052   tree_view->priv->row_separator_destroy = destroy;
15053 }
15054
15055
15056 static void
15057 gtk_tree_view_grab_notify (GtkWidget *widget,
15058                            gboolean   was_grabbed)
15059 {
15060   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15061
15062   tree_view->priv->in_grab = !was_grabbed;
15063
15064   if (!was_grabbed)
15065     {
15066       tree_view->priv->pressed_button = -1;
15067
15068       if (tree_view->priv->rubber_band_status)
15069         gtk_tree_view_stop_rubber_band (tree_view);
15070     }
15071 }
15072
15073 static void
15074 gtk_tree_view_state_changed (GtkWidget      *widget,
15075                              GtkStateType    previous_state)
15076 {
15077   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15078
15079   if (GTK_WIDGET_REALIZED (widget))
15080     {
15081       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15082       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15083     }
15084
15085   gtk_widget_queue_draw (widget);
15086 }
15087
15088 /**
15089  * gtk_tree_view_get_grid_lines:
15090  * @tree_view: a #GtkTreeView
15091  *
15092  * Returns which grid lines are enabled in @tree_view.
15093  *
15094  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15095  * are enabled.
15096  *
15097  * Since: 2.10
15098  */
15099 GtkTreeViewGridLines
15100 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15101 {
15102   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15103
15104   return tree_view->priv->grid_lines;
15105 }
15106
15107 /**
15108  * gtk_tree_view_set_grid_lines:
15109  * @tree_view: a #GtkTreeView
15110  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15111  * enable.
15112  *
15113  * Sets which grid lines to draw in @tree_view.
15114  *
15115  * Since: 2.10
15116  */
15117 void
15118 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15119                               GtkTreeViewGridLines   grid_lines)
15120 {
15121   GtkTreeViewPrivate *priv;
15122   GtkWidget *widget;
15123   GtkTreeViewGridLines old_grid_lines;
15124
15125   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15126
15127   priv = tree_view->priv;
15128   widget = GTK_WIDGET (tree_view);
15129
15130   old_grid_lines = priv->grid_lines;
15131   priv->grid_lines = grid_lines;
15132
15133   if (GTK_WIDGET_REALIZED (widget))
15134     {
15135       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15136           priv->grid_line_gc)
15137         {
15138           g_object_unref (priv->grid_line_gc);
15139           priv->grid_line_gc = NULL;
15140         }
15141
15142       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15143           !priv->grid_line_gc)
15144         {
15145           gint line_width;
15146           gint8 *dash_list;
15147
15148           gtk_widget_style_get (widget,
15149                                 "grid-line-width", &line_width,
15150                                 "grid-line-pattern", (gchar *)&dash_list,
15151                                 NULL);
15152
15153           priv->grid_line_gc = gdk_gc_new (widget->window);
15154           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15155
15156           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15157                                       GDK_LINE_ON_OFF_DASH,
15158                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15159           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15160
15161           g_free (dash_list);
15162         }
15163     }
15164
15165   if (old_grid_lines != grid_lines)
15166     {
15167       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15168
15169       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15170     }
15171 }
15172
15173 /**
15174  * gtk_tree_view_get_enable_tree_lines:
15175  * @tree_view: a #GtkTreeView.
15176  *
15177  * Returns whether or not tree lines are drawn in @tree_view.
15178  *
15179  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15180  * otherwise.
15181  *
15182  * Since: 2.10
15183  */
15184 gboolean
15185 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15186 {
15187   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15188
15189   return tree_view->priv->tree_lines_enabled;
15190 }
15191
15192 /**
15193  * gtk_tree_view_set_enable_tree_lines:
15194  * @tree_view: a #GtkTreeView
15195  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15196  *
15197  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15198  * This does not have any visible effects for lists.
15199  *
15200  * Since: 2.10
15201  */
15202 void
15203 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15204                                      gboolean     enabled)
15205 {
15206   GtkTreeViewPrivate *priv;
15207   GtkWidget *widget;
15208   gboolean was_enabled;
15209
15210   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15211
15212   enabled = enabled != FALSE;
15213
15214   priv = tree_view->priv;
15215   widget = GTK_WIDGET (tree_view);
15216
15217   was_enabled = priv->tree_lines_enabled;
15218
15219   priv->tree_lines_enabled = enabled;
15220
15221   if (GTK_WIDGET_REALIZED (widget))
15222     {
15223       if (!enabled && priv->tree_line_gc)
15224         {
15225           g_object_unref (priv->tree_line_gc);
15226           priv->tree_line_gc = NULL;
15227         }
15228
15229       if (enabled && !priv->tree_line_gc)
15230         {
15231           gint line_width;
15232           gint8 *dash_list;
15233           gtk_widget_style_get (widget,
15234                                 "tree-line-width", &line_width,
15235                                 "tree-line-pattern", (gchar *)&dash_list,
15236                                 NULL);
15237
15238           priv->tree_line_gc = gdk_gc_new (widget->window);
15239           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15240
15241           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15242                                       GDK_LINE_ON_OFF_DASH,
15243                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15244           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15245
15246           g_free (dash_list);
15247         }
15248     }
15249
15250   if (was_enabled != enabled)
15251     {
15252       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15253
15254       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15255     }
15256 }
15257
15258
15259 /**
15260  * gtk_tree_view_set_show_expanders:
15261  * @tree_view: a #GtkTreeView
15262  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15263  *
15264  * Sets whether to draw and enable expanders and indent child rows in
15265  * @tree_view.  When disabled there will be no expanders visible in trees
15266  * and there will be no way to expand and collapse rows by default.  Also
15267  * note that hiding the expanders will disable the default indentation.  You
15268  * can set a custom indentation in this case using
15269  * gtk_tree_view_set_level_indentation().
15270  * This does not have any visible effects for lists.
15271  *
15272  * Since: 2.12
15273  */
15274 void
15275 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15276                                   gboolean     enabled)
15277 {
15278   gboolean was_enabled;
15279
15280   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15281
15282   enabled = enabled != FALSE;
15283   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15284
15285   if (enabled)
15286     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15287   else
15288     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15289
15290   if (enabled != was_enabled)
15291     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15292 }
15293
15294 /**
15295  * gtk_tree_view_get_show_expanders:
15296  * @tree_view: a #GtkTreeView.
15297  *
15298  * Returns whether or not expanders are drawn in @tree_view.
15299  *
15300  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15301  * otherwise.
15302  *
15303  * Since: 2.12
15304  */
15305 gboolean
15306 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15307 {
15308   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15309
15310   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15311 }
15312
15313 /**
15314  * gtk_tree_view_set_level_indentation:
15315  * @tree_view: a #GtkTreeView
15316  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15317  *
15318  * Sets the amount of extra indentation for child levels to use in @tree_view
15319  * in addition to the default indentation.  The value should be specified in
15320  * pixels, a value of 0 disables this feature and in this case only the default
15321  * indentation will be used.
15322  * This does not have any visible effects for lists.
15323  *
15324  * Since: 2.12
15325  */
15326 void
15327 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15328                                      gint         indentation)
15329 {
15330   tree_view->priv->level_indentation = indentation;
15331
15332   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15333 }
15334
15335 /**
15336  * gtk_tree_view_get_level_indentation:
15337  * @tree_view: a #GtkTreeView.
15338  *
15339  * Returns the amount, in pixels, of extra indentation for child levels
15340  * in @tree_view.
15341  *
15342  * Return value: the amount of extra indentation for child levels in
15343  * @tree_view.  A return value of 0 means that this feature is disabled.
15344  *
15345  * Since: 2.12
15346  */
15347 gint
15348 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15349 {
15350   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15351
15352   return tree_view->priv->level_indentation;
15353 }
15354
15355 /**
15356  * gtk_tree_view_set_tooltip_row:
15357  * @tree_view: a #GtkTreeView
15358  * @tooltip: a #GtkTooltip
15359  * @path: a #GtkTreePath
15360  *
15361  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15362  * See also gtk_tooltip_set_tip_area().
15363  *
15364  * Since: 2.12
15365  */
15366 void
15367 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15368                                GtkTooltip  *tooltip,
15369                                GtkTreePath *path)
15370 {
15371   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15372   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15373
15374   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15375 }
15376
15377 /**
15378  * gtk_tree_view_set_tooltip_cell:
15379  * @tree_view: a #GtkTreeView
15380  * @tooltip: a #GtkTooltip
15381  * @path: a #GtkTreePath or %NULL
15382  * @column: a #GtkTreeViewColumn or %NULL
15383  * @cell: a #GtkCellRenderer or %NULL
15384  *
15385  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15386  * in common.  For example if @path is %NULL and @column is set, the tip
15387  * area will be set to the full area covered by @column.  See also
15388  * gtk_tooltip_set_tip_area().
15389  *
15390  * Note that if @path is not specified and @cell is set and part of a column
15391  * containing the expander, the tooltip might not show and hide at the correct
15392  * position.  In such cases @path must be set to the current node under the
15393  * mouse cursor for this function to operate correctly.
15394  *
15395  * Since: 2.12
15396  */
15397 void
15398 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15399                                 GtkTooltip        *tooltip,
15400                                 GtkTreePath       *path,
15401                                 GtkTreeViewColumn *column,
15402                                 GtkCellRenderer   *cell)
15403 {
15404   GdkRectangle rect;
15405
15406   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15407   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15408
15409   if (column)
15410     g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
15411
15412   if (cell)
15413     g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
15414
15415   /* Determine x values. */
15416   if (column && cell)
15417     {
15418       GdkRectangle tmp;
15419       gint start, width;
15420
15421       /* We always pass in path here, whether it is NULL or not.
15422        * For cells in expander columns path must be specified so that
15423        * we can correctly account for the indentation.  This also means
15424        * that the tooltip is constrained vertically by the "Determine y
15425        * values" code below; this is not a real problem since cells actually
15426        * don't stretch vertically in constrast to columns.
15427        */
15428       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15429       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15430
15431       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15432                                                          tmp.x + start, 0,
15433                                                          &rect.x, NULL);
15434       rect.width = width;
15435     }
15436   else if (column)
15437     {
15438       GdkRectangle tmp;
15439
15440       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15441       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15442                                                          tmp.x, 0,
15443                                                          &rect.x, NULL);
15444       rect.width = tmp.width;
15445     }
15446   else
15447     {
15448       rect.x = 0;
15449       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15450     }
15451
15452   /* Determine y values. */
15453   if (path)
15454     {
15455       GdkRectangle tmp;
15456
15457       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15458       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15459                                                          0, tmp.y,
15460                                                          NULL, &rect.y);
15461       rect.height = tmp.height;
15462     }
15463   else
15464     {
15465       rect.y = 0;
15466       rect.height = tree_view->priv->vadjustment->page_size;
15467     }
15468
15469   gtk_tooltip_set_tip_area (tooltip, &rect);
15470 }
15471
15472 /**
15473  * gtk_tree_view_get_tooltip_context:
15474  * @tree_view: a #GtkTreeView
15475  * @x: the x coordinate (relative to widget coordinates)
15476  * @y: the y coordinate (relative to widget coordinates)
15477  * @keyboard_tip: whether this is a keyboard tooltip or not
15478  * @model: a pointer to receive a #GtkTreeModel or %NULL
15479  * @path: a pointer to receive a #GtkTreePath or %NULL
15480  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15481  *
15482  * This function is supposed to be used in a #GtkWidget::query-tooltip
15483  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15484  * which are received in the signal handler, should be passed to this
15485  * function without modification.
15486  *
15487  * The return value indicates whether there is a tree view row at the given
15488  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15489  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15490  * @model, @path and @iter which have been provided will be set to point to
15491  * that row and the corresponding model.  @x and @y will always be converted
15492  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15493  *
15494  * Return value: whether or not the given tooltip context points to a row.
15495  *
15496  * Since: 2.12
15497  */
15498 gboolean
15499 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15500                                    gint          *x,
15501                                    gint          *y,
15502                                    gboolean       keyboard_tip,
15503                                    GtkTreeModel **model,
15504                                    GtkTreePath  **path,
15505                                    GtkTreeIter   *iter)
15506 {
15507   GtkTreePath *tmppath = NULL;
15508
15509   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15510   g_return_val_if_fail (x != NULL, FALSE);
15511   g_return_val_if_fail (y != NULL, FALSE);
15512
15513   if (keyboard_tip)
15514     {
15515       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15516
15517       if (!tmppath)
15518         return FALSE;
15519     }
15520   else
15521     {
15522       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15523                                                          x, y);
15524
15525       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15526                                           &tmppath, NULL, NULL, NULL))
15527         return FALSE;
15528     }
15529
15530   if (model)
15531     *model = gtk_tree_view_get_model (tree_view);
15532
15533   if (iter)
15534     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15535                              iter, tmppath);
15536
15537   if (path)
15538     *path = tmppath;
15539   else
15540     gtk_tree_path_free (tmppath);
15541
15542   return TRUE;
15543 }
15544
15545 static gboolean
15546 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15547                                     gint        x,
15548                                     gint        y,
15549                                     gboolean    keyboard_tip,
15550                                     GtkTooltip *tooltip,
15551                                     gpointer    data)
15552 {
15553   GValue value = { 0, };
15554   GValue transformed = { 0, };
15555   GtkTreeIter iter;
15556   GtkTreePath *path;
15557   GtkTreeModel *model;
15558   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15559
15560   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15561                                           &x, &y,
15562                                           keyboard_tip,
15563                                           &model, &path, &iter))
15564     return FALSE;
15565
15566   gtk_tree_model_get_value (model, &iter,
15567                             tree_view->priv->tooltip_column, &value);
15568
15569   g_value_init (&transformed, G_TYPE_STRING);
15570
15571   if (!g_value_transform (&value, &transformed))
15572     {
15573       g_value_unset (&value);
15574       gtk_tree_path_free (path);
15575
15576       return FALSE;
15577     }
15578
15579   g_value_unset (&value);
15580
15581   if (!g_value_get_string (&transformed))
15582     {
15583       g_value_unset (&transformed);
15584       gtk_tree_path_free (path);
15585
15586       return FALSE;
15587     }
15588
15589   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15590   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15591
15592   gtk_tree_path_free (path);
15593   g_value_unset (&transformed);
15594
15595   return TRUE;
15596 }
15597
15598 /**
15599  * gtk_tree_view_set_tooltip_column:
15600  * @tree_view: a #GtkTreeView
15601  * @column: an integer, which is a valid column number for @tree_view's model
15602  *
15603  * If you only plan to have simple (text-only) tooltips on full rows, you
15604  * can use this function to have #GtkTreeView handle these automatically
15605  * for you. @column should be set to the column in @tree_view's model
15606  * containing the tooltip texts, or -1 to disable this feature.
15607  *
15608  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15609  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15610  *
15611  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15612  * so &amp;, &lt;, etc have to be escaped in the text.
15613  *
15614  * Since: 2.12
15615  */
15616 void
15617 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15618                                   gint         column)
15619 {
15620   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15621
15622   if (column == tree_view->priv->tooltip_column)
15623     return;
15624
15625   if (column == -1)
15626     {
15627       g_signal_handlers_disconnect_by_func (tree_view,
15628                                             gtk_tree_view_set_tooltip_query_cb,
15629                                             NULL);
15630       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15631     }
15632   else
15633     {
15634       if (tree_view->priv->tooltip_column == -1)
15635         {
15636           g_signal_connect (tree_view, "query-tooltip",
15637                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15638           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15639         }
15640     }
15641
15642   tree_view->priv->tooltip_column = column;
15643   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15644 }
15645
15646 /**
15647  * gtk_tree_view_get_tooltip_column:
15648  * @tree_view: a #GtkTreeView
15649  *
15650  * Returns the column of @tree_view's model which is being used for
15651  * displaying tooltips on @tree_view's rows.
15652  *
15653  * Return value: the index of the tooltip column that is currently being
15654  * used, or -1 if this is disabled.
15655  *
15656  * Since: 2.12
15657  */
15658 gint
15659 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15660 {
15661   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15662
15663   return tree_view->priv->tooltip_column;
15664 }
15665
15666 #define __GTK_TREE_VIEW_C__
15667 #include "gtkaliasdef.c"