Pileus Git - ~andy/gtk/blob - gtk/gtktreeview.c

   1 /* gtktreeview.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20
  21 #include "config.h"
  22 #include <string.h>
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "gtktreeview.h"
  26 #include "gtkrbtree.h"
  27 #include "gtktreednd.h"
  28 #include "gtktreeprivate.h"
  29 #include "gtkcellrenderer.h"
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkbuildable.h"
  33 #include "gtkbutton.h"
  34 #include "gtkalignment.h"
  35 #include "gtklabel.h"
  36 #include "gtkhbox.h"
  37 #include "gtkvbox.h"
  38 #include "gtkarrow.h"
  39 #include "gtkintl.h"
  40 #include "gtkbindings.h"
  41 #include "gtkcontainer.h"
  42 #include "gtkentry.h"
  43 #include "gtkframe.h"
  44 #include "gtktreemodelsort.h"
  45 #include "gtktooltip.h"
  46 #include "gtkprivate.h"
  47 #include "gtkalias.h"
  48
  49 #define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
  50 #define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
  51 #define GTK_TREE_VIEW_TIME_MS_PER_IDLE 30
  52 #define SCROLL_EDGE_SIZE 15
  53 #define EXPANDER_EXTRA_PADDING 4
  54 #define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
  55 #define AUTO_EXPAND_TIMEOUT 500
  56
  57 /* The "background" areas of all rows/cells add up to cover the entire tree.
  58  * The background includes all inter-row and inter-cell spacing.
  59  * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
  60  * i.e. just the cells, no spacing.
  61  */
  62
  63 #define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
  64 #define CELL_HEIGHT(node, separator) ((BACKGROUND_HEIGHT (node)) - (separator))
  65
  66 /* Translate from bin_window coordinates to rbtree (tree coordinates) and
  67  * vice versa.
  68  */
  69 #define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
  70 #define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)
  71
  72 /* This is in bin_window coordinates */
  73 #define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, _gtk_rbtree_node_find_offset ((tree), (node))))
  74 #define CELL_FIRST_PIXEL(tree_view,tree,node,separator) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + separator/2)
  75
  76 #define ROW_HEIGHT(tree_view,height) \
  77   ((height > 0) ? (height) : (tree_view)->priv->expander_size)
  78
  79
  80 typedef struct _GtkTreeViewChild GtkTreeViewChild;
  81 struct _GtkTreeViewChild
  82 {
  83   GtkWidget *widget;
  84   gint x;
  85   gint y;
  86   gint width;
  87   gint height;
  88 };
  89
  90
  91 typedef struct _TreeViewDragInfo TreeViewDragInfo;
  92 struct _TreeViewDragInfo
  93 {
  94   GdkModifierType start_button_mask;
  95   GtkTargetList *_unused_source_target_list;
  96   GdkDragAction source_actions;
  97
  98   GtkTargetList *_unused_dest_target_list;
  99
 100   guint source_set : 1;
 101   guint dest_set : 1;
 102 };
 103
 104
 105 /* Signals */
 106 enum
 107 {
 108   ROW_ACTIVATED,
 109   TEST_EXPAND_ROW,
 110   TEST_COLLAPSE_ROW,
 111   ROW_EXPANDED,
 112   ROW_COLLAPSED,
 113   COLUMNS_CHANGED,
 114   CURSOR_CHANGED,
 115   MOVE_CURSOR,
 116   SELECT_ALL,
 117   UNSELECT_ALL,
 118   SELECT_CURSOR_ROW,
 119   TOGGLE_CURSOR_ROW,
 120   EXPAND_COLLAPSE_CURSOR_ROW,
 121   SELECT_CURSOR_PARENT,
 122   START_INTERACTIVE_SEARCH,
 123   LAST_SIGNAL
 124 };
 125
 126 /* Properties */
 127 enum {
 128   PROP_0,
 129   PROP_MODEL,
 130   PROP_HADJUSTMENT,
 131   PROP_VADJUSTMENT,
 132   PROP_HEADERS_VISIBLE,
 133   PROP_HEADERS_CLICKABLE,
 134   PROP_EXPANDER_COLUMN,
 135   PROP_REORDERABLE,
 136   PROP_RULES_HINT,
 137   PROP_ENABLE_SEARCH,
 138   PROP_SEARCH_COLUMN,
 139   PROP_FIXED_HEIGHT_MODE,
 140   PROP_HOVER_SELECTION,
 141   PROP_HOVER_EXPAND,
 142   PROP_SHOW_EXPANDERS,
 143   PROP_LEVEL_INDENTATION,
 144   PROP_RUBBER_BANDING,
 145   PROP_ENABLE_GRID_LINES,
 146   PROP_ENABLE_TREE_LINES,
 147   PROP_TOOLTIP_COLUMN
 148 };
 149
 150 /* object signals */
 151 static void     gtk_tree_view_finalize             (GObject          *object);
 152 static void     gtk_tree_view_set_property         (GObject         *object,
 153                                                     guint            prop_id,
 154                                                     const GValue    *value,
 155                                                     GParamSpec      *pspec);
 156 static void     gtk_tree_view_get_property         (GObject         *object,
 157                                                     guint            prop_id,
 158                                                     GValue          *value,
 159                                                     GParamSpec      *pspec);
 160
 161 /* gtkobject signals */
 162 static void     gtk_tree_view_destroy              (GtkObject        *object);
 163
 164 /* gtkwidget signals */
 165 static void     gtk_tree_view_realize              (GtkWidget        *widget);
 166 static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
 167 static void     gtk_tree_view_map                  (GtkWidget        *widget);
 168 static void     gtk_tree_view_size_request         (GtkWidget        *widget,
 169                                                     GtkRequisition   *requisition);
 170 static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
 171                                                     GtkAllocation    *allocation);
 172 static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
 173                                                     GdkEventExpose   *event);
 174 static gboolean gtk_tree_view_key_press            (GtkWidget        *widget,
 175                                                     GdkEventKey      *event);
 176 static gboolean gtk_tree_view_key_release          (GtkWidget        *widget,
 177                                                     GdkEventKey      *event);
 178 static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
 179                                                     GdkEventMotion   *event);
 180 static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
 181                                                     GdkEventCrossing *event);
 182 static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
 183                                                     GdkEventCrossing *event);
 184 static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
 185                                                     GdkEventButton   *event);
 186 static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
 187                                                     GdkEventButton   *event);
 188 static gboolean gtk_tree_view_grab_broken          (GtkWidget          *widget,
 189                                                     GdkEventGrabBroken *event);
 190 #if 0
 191 static gboolean gtk_tree_view_configure            (GtkWidget         *widget,
 192                                                     GdkEventConfigure *event);
 193 #endif
 194
 195 static void     gtk_tree_view_set_focus_child      (GtkContainer     *container,
 196                                                     GtkWidget        *child);
 197 static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
 198                                                     GdkEventFocus    *event);
 199 static gint     gtk_tree_view_focus                (GtkWidget        *widget,
 200                                                     GtkDirectionType  direction);
 201 static void     gtk_tree_view_grab_focus           (GtkWidget        *widget);
 202 static void     gtk_tree_view_style_set            (GtkWidget        *widget,
 203                                                     GtkStyle         *previous_style);
 204 static void     gtk_tree_view_grab_notify          (GtkWidget        *widget,
 205                                                     gboolean          was_grabbed);
 206 static void     gtk_tree_view_state_changed        (GtkWidget        *widget,
 207                                                     GtkStateType      previous_state);
 208
 209 /* container signals */
 210 static void     gtk_tree_view_remove               (GtkContainer     *container,
 211                                                     GtkWidget        *widget);
 212 static void     gtk_tree_view_forall               (GtkContainer     *container,
 213                                                     gboolean          include_internals,
 214                                                     GtkCallback       callback,
 215                                                     gpointer          callback_data);
 216
 217 /* Source side drag signals */
 218 static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
 219                                             GdkDragContext   *context);
 220 static void gtk_tree_view_drag_end         (GtkWidget        *widget,
 221                                             GdkDragContext   *context);
 222 static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
 223                                             GdkDragContext   *context,
 224                                             GtkSelectionData *selection_data,
 225                                             guint             info,
 226                                             guint             time);
 227 static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
 228                                             GdkDragContext   *context);
 229
 230 /* Target side drag signals */
 231 static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
 232                                                   GdkDragContext   *context,
 233                                                   guint             time);
 234 static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
 235                                                   GdkDragContext   *context,
 236                                                   gint              x,
 237                                                   gint              y,
 238                                                   guint             time);
 239 static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
 240                                                   GdkDragContext   *context,
 241                                                   gint              x,
 242                                                   gint              y,
 243                                                   guint             time);
 244 static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
 245                                                   GdkDragContext   *context,
 246                                                   gint              x,
 247                                                   gint              y,
 248                                                   GtkSelectionData *selection_data,
 249                                                   guint             info,
 250                                                   guint             time);
 251
 252 /* tree_model signals */
 253 static void gtk_tree_view_set_adjustments                 (GtkTreeView     *tree_view,
 254                                                            GtkAdjustment   *hadj,
 255                                                            GtkAdjustment   *vadj);
 256 static gboolean gtk_tree_view_real_move_cursor            (GtkTreeView     *tree_view,
 257                                                            GtkMovementStep  step,
 258                                                            gint             count);
 259 static gboolean gtk_tree_view_real_select_all             (GtkTreeView     *tree_view);
 260 static gboolean gtk_tree_view_real_unselect_all           (GtkTreeView     *tree_view);
 261 static gboolean gtk_tree_view_real_select_cursor_row      (GtkTreeView     *tree_view,
 262                                                            gboolean         start_editing);
 263 static gboolean gtk_tree_view_real_toggle_cursor_row      (GtkTreeView     *tree_view);
 264 static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView     *tree_view,
 265                                                                gboolean         logical,
 266                                                                gboolean         expand,
 267                                                                gboolean         open_all);
 268 static gboolean gtk_tree_view_real_select_cursor_parent   (GtkTreeView     *tree_view);
 269 static void gtk_tree_view_row_changed                     (GtkTreeModel    *model,
 270                                                            GtkTreePath     *path,
 271                                                            GtkTreeIter     *iter,
 272                                                            gpointer         data);
 273 static void gtk_tree_view_row_inserted                    (GtkTreeModel    *model,
 274                                                            GtkTreePath     *path,
 275                                                            GtkTreeIter     *iter,
 276                                                            gpointer         data);
 277 static void gtk_tree_view_row_has_child_toggled           (GtkTreeModel    *model,
 278                                                            GtkTreePath     *path,
 279                                                            GtkTreeIter     *iter,
 280                                                            gpointer         data);
 281 static void gtk_tree_view_row_deleted                     (GtkTreeModel    *model,
 282                                                            GtkTreePath     *path,
 283                                                            gpointer         data);
 284 static void gtk_tree_view_rows_reordered                  (GtkTreeModel    *model,
 285                                                            GtkTreePath     *parent,
 286                                                            GtkTreeIter     *iter,
 287                                                            gint            *new_order,
 288                                                            gpointer         data);
 289
 290 /* Incremental reflow */
 291 static gboolean validate_row             (GtkTreeView *tree_view,
 292                                           GtkRBTree   *tree,
 293                                           GtkRBNode   *node,
 294                                           GtkTreeIter *iter,
 295                                           GtkTreePath *path);
 296 static void     validate_visible_area    (GtkTreeView *tree_view);
 297 static gboolean validate_rows_handler    (GtkTreeView *tree_view);
 298 static gboolean do_validate_rows         (GtkTreeView *tree_view,
 299                                           gboolean     size_request);
 300 static gboolean validate_rows            (GtkTreeView *tree_view);
 301 static gboolean presize_handler_callback (gpointer     data);
 302 static void     install_presize_handler  (GtkTreeView *tree_view);
 303 static void     install_scroll_sync_handler (GtkTreeView *tree_view);
 304 static void     gtk_tree_view_set_top_row   (GtkTreeView *tree_view,
 305                                              GtkTreePath *path,
 306                                              gint         offset);
 307 static void     gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
 308 static void     gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
 309 static void     invalidate_empty_focus      (GtkTreeView *tree_view);
 310
 311 /* Internal functions */
 312 static gboolean gtk_tree_view_is_expander_column             (GtkTreeView        *tree_view,
 313                                                               GtkTreeViewColumn  *column);
 314 static void     gtk_tree_view_add_move_binding               (GtkBindingSet      *binding_set,
 315                                                               guint               keyval,
 316                                                               guint               modmask,
 317                                                               gboolean            add_shifted_binding,
 318                                                               GtkMovementStep     step,
 319                                                               gint                count);
 320 static gint     gtk_tree_view_unref_and_check_selection_tree (GtkTreeView        *tree_view,
 321                                                               GtkRBTree          *tree);
 322 static void     gtk_tree_view_queue_draw_path                (GtkTreeView        *tree_view,
 323                                                               GtkTreePath        *path,
 324                                                               const GdkRectangle *clip_rect);
 325 static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView        *tree_view,
 326                                                               GtkRBTree          *tree,
 327                                                               GtkRBNode          *node,
 328                                                               const GdkRectangle *clip_rect);
 329 static void     gtk_tree_view_draw_arrow                     (GtkTreeView        *tree_view,
 330                                                               GtkRBTree          *tree,
 331                                                               GtkRBNode          *node,
 332                                                               gint                x,
 333                                                               gint                y);
 334 static void     gtk_tree_view_get_arrow_xrange               (GtkTreeView        *tree_view,
 335                                                               GtkRBTree          *tree,
 336                                                               gint               *x1,
 337                                                               gint               *x2);
 338 static gint     gtk_tree_view_new_column_width               (GtkTreeView        *tree_view,
 339                                                               gint                i,
 340                                                               gint               *x);
 341 static void     gtk_tree_view_adjustment_changed             (GtkAdjustment      *adjustment,
 342                                                               GtkTreeView        *tree_view);
 343 static void     gtk_tree_view_build_tree                     (GtkTreeView        *tree_view,
 344                                                               GtkRBTree          *tree,
 345                                                               GtkTreeIter        *iter,
 346                                                               gint                depth,
 347                                                               gboolean            recurse);
 348 static void     gtk_tree_view_clamp_node_visible             (GtkTreeView        *tree_view,
 349                                                               GtkRBTree          *tree,
 350                                                               GtkRBNode          *node);
 351 static void     gtk_tree_view_clamp_column_visible           (GtkTreeView        *tree_view,
 352                                                               GtkTreeViewColumn  *column,
 353                                                               gboolean            focus_to_cell);
 354 static gboolean gtk_tree_view_maybe_begin_dragging_row       (GtkTreeView        *tree_view,
 355                                                               GdkEventMotion     *event);
 356 static void     gtk_tree_view_focus_to_cursor                (GtkTreeView        *tree_view);
 357 static void     gtk_tree_view_move_cursor_up_down            (GtkTreeView        *tree_view,
 358                                                               gint                count);
 359 static void     gtk_tree_view_move_cursor_page_up_down       (GtkTreeView        *tree_view,
 360                                                               gint                count);
 361 static void     gtk_tree_view_move_cursor_left_right         (GtkTreeView        *tree_view,
 362                                                               gint                count);
 363 static void     gtk_tree_view_move_cursor_start_end          (GtkTreeView        *tree_view,
 364                                                               gint                count);
 365 static gboolean gtk_tree_view_real_collapse_row              (GtkTreeView        *tree_view,
 366                                                               GtkTreePath        *path,
 367                                                               GtkRBTree          *tree,
 368                                                               GtkRBNode          *node,
 369                                                               gboolean            animate);
 370 static gboolean gtk_tree_view_real_expand_row                (GtkTreeView        *tree_view,
 371                                                               GtkTreePath        *path,
 372                                                               GtkRBTree          *tree,
 373                                                               GtkRBNode          *node,
 374                                                               gboolean            open_all,
 375                                                               gboolean            animate);
 376 static void     gtk_tree_view_real_set_cursor                (GtkTreeView        *tree_view,
 377                                                               GtkTreePath        *path,
 378                                                               gboolean            clear_and_select,
 379                                                               gboolean            clamp_node);
 380 static gboolean gtk_tree_view_has_special_cell               (GtkTreeView        *tree_view);
 381 static void     column_sizing_notify                         (GObject            *object,
 382                                                               GParamSpec         *pspec,
 383                                                               gpointer            data);
 384 static gboolean expand_collapse_timeout                      (gpointer            data);
 385 static void     add_expand_collapse_timeout                  (GtkTreeView        *tree_view,
 386                                                               GtkRBTree          *tree,
 387                                                               GtkRBNode          *node,
 388                                                               gboolean            expand);
 389 static void     remove_expand_collapse_timeout               (GtkTreeView        *tree_view);
 390 static void     cancel_arrow_animation                       (GtkTreeView        *tree_view);
 391 static gboolean do_expand_collapse                           (GtkTreeView        *tree_view);
 392 static void     gtk_tree_view_stop_rubber_band               (GtkTreeView        *tree_view);
 393
 394 /* interactive search */
 395 static void     gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
 396 static void     gtk_tree_view_search_dialog_hide     (GtkWidget        *search_dialog,
 397                                                          GtkTreeView      *tree_view);
 398 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 399                                                          GtkWidget        *search_dialog,
 400                                                          gpointer          user_data);
 401 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 402                                                          GtkMenu          *menu,
 403                                                          gpointer          data);
 404 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 405                                                          GtkTreeView      *tree_view);
 406 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 407                                                          GtkTreeView      *tree_view);
 408 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 409 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 410                                                          gpointer          data);
 411 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 412                                                          GdkEventAny      *event,
 413                                                          GtkTreeView      *tree_view);
 414 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 415                                                          GdkEventButton   *event,
 416                                                          GtkTreeView      *tree_view);
 417 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 418                                                          GdkEventScroll   *event,
 419                                                          GtkTreeView      *tree_view);
 420 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 421                                                          GdkEventKey      *event,
 422                                                          GtkTreeView      *tree_view);
 423 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 424                                                          GtkTreeView      *tree_view,
 425                                                          gboolean          up);
 426 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 427                                                          gint              column,
 428                                                          const gchar      *key,
 429                                                          GtkTreeIter      *iter,
 430                                                          gpointer          search_data);
 431 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 432                                                          GtkTreeSelection *selection,
 433                                                          GtkTreeIter      *iter,
 434                                                          const gchar      *text,
 435                                                          gint             *count,
 436                                                          gint              n);
 437 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 438                                                          GtkTreeView      *tree_view);
 439 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 440                                                          GtkWidget        *child_widget,
 441                                                          gint              x,
 442                                                          gint              y,
 443                                                          gint              width,
 444                                                          gint              height);
 445 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 446                                                          GtkTreePath      *cursor_path);
 447 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 448                                               GtkTreeViewColumn *column,
 449                                               GtkTreePath       *path,
 450                                               GtkCellEditable   *cell_editable,
 451                                               GdkRectangle      *cell_area,
 452                                               GdkEvent          *event,
 453                                               guint              flags);
 454 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 455                                                          gboolean     cancel_editing);
 456 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 457                                                              gboolean     keybinding);
 458 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 459 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 460                                                          GtkTreeViewColumn *column,
 461                                                          gint               drop_position);
 462
 463 /* GtkBuildable */
 464 static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
 465                                                GtkBuilder  *builder,
 466                                                GObject     *child,
 467                                                const gchar *type);
 468 static void gtk_tree_view_buildable_init      (GtkBuildableIface *iface);
 469
 470
 471 static gboolean scroll_row_timeout                   (gpointer     data);
 472 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 473 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 474
 475 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 476
 477 \f
 478
 479 /* GType Methods
 480  */
 481
 482 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 483                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 484                                                 gtk_tree_view_buildable_init))
 485
 486 static void
 487 gtk_tree_view_class_init (GtkTreeViewClass *class)
 488 {
 489   GObjectClass *o_class;
 490   GtkObjectClass *object_class;
 491   GtkWidgetClass *widget_class;
 492   GtkContainerClass *container_class;
 493   GtkBindingSet *binding_set;
 494
 495   binding_set = gtk_binding_set_by_class (class);
 496
 497   o_class = (GObjectClass *) class;
 498   object_class = (GtkObjectClass *) class;
 499   widget_class = (GtkWidgetClass *) class;
 500   container_class = (GtkContainerClass *) class;
 501
 502   /* GObject signals */
 503   o_class->set_property = gtk_tree_view_set_property;
 504   o_class->get_property = gtk_tree_view_get_property;
 505   o_class->finalize = gtk_tree_view_finalize;
 506
 507   /* GtkObject signals */
 508   object_class->destroy = gtk_tree_view_destroy;
 509
 510   /* GtkWidget signals */
 511   widget_class->map = gtk_tree_view_map;
 512   widget_class->realize = gtk_tree_view_realize;
 513   widget_class->unrealize = gtk_tree_view_unrealize;
 514   widget_class->size_request = gtk_tree_view_size_request;
 515   widget_class->size_allocate = gtk_tree_view_size_allocate;
 516   widget_class->button_press_event = gtk_tree_view_button_press;
 517   widget_class->button_release_event = gtk_tree_view_button_release;
 518   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 519   /*widget_class->configure_event = gtk_tree_view_configure;*/
 520   widget_class->motion_notify_event = gtk_tree_view_motion;
 521   widget_class->expose_event = gtk_tree_view_expose;
 522   widget_class->key_press_event = gtk_tree_view_key_press;
 523   widget_class->key_release_event = gtk_tree_view_key_release;
 524   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 525   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 526   widget_class->focus_out_event = gtk_tree_view_focus_out;
 527   widget_class->drag_begin = gtk_tree_view_drag_begin;
 528   widget_class->drag_end = gtk_tree_view_drag_end;
 529   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 530   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 531   widget_class->drag_leave = gtk_tree_view_drag_leave;
 532   widget_class->drag_motion = gtk_tree_view_drag_motion;
 533   widget_class->drag_drop = gtk_tree_view_drag_drop;
 534   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 535   widget_class->focus = gtk_tree_view_focus;
 536   widget_class->grab_focus = gtk_tree_view_grab_focus;
 537   widget_class->style_set = gtk_tree_view_style_set;
 538   widget_class->grab_notify = gtk_tree_view_grab_notify;
 539   widget_class->state_changed = gtk_tree_view_state_changed;
 540
 541   /* GtkContainer signals */
 542   container_class->remove = gtk_tree_view_remove;
 543   container_class->forall = gtk_tree_view_forall;
 544   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 545
 546   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 547   class->move_cursor = gtk_tree_view_real_move_cursor;
 548   class->select_all = gtk_tree_view_real_select_all;
 549   class->unselect_all = gtk_tree_view_real_unselect_all;
 550   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 551   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 552   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 553   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 554   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 555
 556   /* Properties */
 557
 558   g_object_class_install_property (o_class,
 559                                    PROP_MODEL,
 560                                    g_param_spec_object ("model",
 561                                                         P_("TreeView Model"),
 562                                                         P_("The model for the tree view"),
 563                                                         GTK_TYPE_TREE_MODEL,
 564                                                         GTK_PARAM_READWRITE));
 565
 566   g_object_class_install_property (o_class,
 567                                    PROP_HADJUSTMENT,
 568                                    g_param_spec_object ("hadjustment",
 569                                                         P_("Horizontal Adjustment"),
 570                                                         P_("Horizontal Adjustment for the widget"),
 571                                                         GTK_TYPE_ADJUSTMENT,
 572                                                         GTK_PARAM_READWRITE));
 573
 574   g_object_class_install_property (o_class,
 575                                    PROP_VADJUSTMENT,
 576                                    g_param_spec_object ("vadjustment",
 577                                                         P_("Vertical Adjustment"),
 578                                                         P_("Vertical Adjustment for the widget"),
 579                                                         GTK_TYPE_ADJUSTMENT,
 580                                                         GTK_PARAM_READWRITE));
 581
 582   g_object_class_install_property (o_class,
 583                                    PROP_HEADERS_VISIBLE,
 584                                    g_param_spec_boolean ("headers-visible",
 585                                                          P_("Headers Visible"),
 586                                                          P_("Show the column header buttons"),
 587                                                          TRUE,
 588                                                          GTK_PARAM_READWRITE));
 589
 590   g_object_class_install_property (o_class,
 591                                    PROP_HEADERS_CLICKABLE,
 592                                    g_param_spec_boolean ("headers-clickable",
 593                                                          P_("Headers Clickable"),
 594                                                          P_("Column headers respond to click events"),
 595                                                          TRUE,
 596                                                          GTK_PARAM_READWRITE));
 597
 598   g_object_class_install_property (o_class,
 599                                    PROP_EXPANDER_COLUMN,
 600                                    g_param_spec_object ("expander-column",
 601                                                         P_("Expander Column"),
 602                                                         P_("Set the column for the expander column"),
 603                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 604                                                         GTK_PARAM_READWRITE));
 605
 606   g_object_class_install_property (o_class,
 607                                    PROP_REORDERABLE,
 608                                    g_param_spec_boolean ("reorderable",
 609                                                          P_("Reorderable"),
 610                                                          P_("View is reorderable"),
 611                                                          FALSE,
 612                                                          GTK_PARAM_READWRITE));
 613
 614   g_object_class_install_property (o_class,
 615                                    PROP_RULES_HINT,
 616                                    g_param_spec_boolean ("rules-hint",
 617                                                          P_("Rules Hint"),
 618                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 619                                                          FALSE,
 620                                                          GTK_PARAM_READWRITE));
 621
 622     g_object_class_install_property (o_class,
 623                                      PROP_ENABLE_SEARCH,
 624                                      g_param_spec_boolean ("enable-search",
 625                                                            P_("Enable Search"),
 626                                                            P_("View allows user to search through columns interactively"),
 627                                                            TRUE,
 628                                                            GTK_PARAM_READWRITE));
 629
 630     g_object_class_install_property (o_class,
 631                                      PROP_SEARCH_COLUMN,
 632                                      g_param_spec_int ("search-column",
 633                                                        P_("Search Column"),
 634                                                        P_("Model column to search through during interactive search"),
 635                                                        -1,
 636                                                        G_MAXINT,
 637                                                        -1,
 638                                                        GTK_PARAM_READWRITE));
 639
 640     /**
 641      * GtkTreeView:fixed-height-mode:
 642      *
 643      * Setting the ::fixed-height-mode property to %TRUE speeds up
 644      * #GtkTreeView by assuming that all rows have the same height.
 645      * Only enable this option if all rows are the same height.
 646      * Please see gtk_tree_view_set_fixed_height_mode() for more
 647      * information on this option.
 648      *
 649      * Since: 2.4
 650      **/
 651     g_object_class_install_property (o_class,
 652                                      PROP_FIXED_HEIGHT_MODE,
 653                                      g_param_spec_boolean ("fixed-height-mode",
 654                                                            P_("Fixed Height Mode"),
 655                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 656                                                            FALSE,
 657                                                            GTK_PARAM_READWRITE));
 658
 659     /**
 660      * GtkTreeView:hover-selection:
 661      *
 662      * Enables of disables the hover selection mode of @tree_view.
 663      * Hover selection makes the selected row follow the pointer.
 664      * Currently, this works only for the selection modes
 665      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 666      *
 667      * This mode is primarily intended for treeviews in popups, e.g.
 668      * in #GtkComboBox or #GtkEntryCompletion.
 669      *
 670      * Since: 2.6
 671      */
 672     g_object_class_install_property (o_class,
 673                                      PROP_HOVER_SELECTION,
 674                                      g_param_spec_boolean ("hover-selection",
 675                                                            P_("Hover Selection"),
 676                                                            P_("Whether the selection should follow the pointer"),
 677                                                            FALSE,
 678                                                            GTK_PARAM_READWRITE));
 679
 680     /**
 681      * GtkTreeView:hover-expand:
 682      *
 683      * Enables of disables the hover expansion mode of @tree_view.
 684      * Hover expansion makes rows expand or collapse if the pointer moves
 685      * over them.
 686      *
 687      * This mode is primarily intended for treeviews in popups, e.g.
 688      * in #GtkComboBox or #GtkEntryCompletion.
 689      *
 690      * Since: 2.6
 691      */
 692     g_object_class_install_property (o_class,
 693                                      PROP_HOVER_EXPAND,
 694                                      g_param_spec_boolean ("hover-expand",
 695                                                            P_("Hover Expand"),
 696                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 697                                                            FALSE,
 698                                                            GTK_PARAM_READWRITE));
 699
 700     /**
 701      * GtkTreeView:show-expanders:
 702      *
 703      * %TRUE if the view has expanders.
 704      *
 705      * Since: 2.12
 706      */
 707     g_object_class_install_property (o_class,
 708                                      PROP_SHOW_EXPANDERS,
 709                                      g_param_spec_boolean ("show-expanders",
 710                                                            P_("Show Expanders"),
 711                                                            P_("View has expanders"),
 712                                                            TRUE,
 713                                                            GTK_PARAM_READWRITE));
 714
 715     /**
 716      * GtkTreeView:level-indentation:
 717      *
 718      * Extra indentation for each level.
 719      *
 720      * Since: 2.12
 721      */
 722     g_object_class_install_property (o_class,
 723                                      PROP_LEVEL_INDENTATION,
 724                                      g_param_spec_int ("level-indentation",
 725                                                        P_("Level Indentation"),
 726                                                        P_("Extra indentation for each level"),
 727                                                        0,
 728                                                        G_MAXINT,
 729                                                        0,
 730                                                        GTK_PARAM_READWRITE));
 731
 732     g_object_class_install_property (o_class,
 733                                      PROP_RUBBER_BANDING,
 734                                      g_param_spec_boolean ("rubber-banding",
 735                                                            P_("Rubber Banding"),
 736                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 737                                                            FALSE,
 738                                                            GTK_PARAM_READWRITE));
 739
 740     g_object_class_install_property (o_class,
 741                                      PROP_ENABLE_GRID_LINES,
 742                                      g_param_spec_enum ("enable-grid-lines",
 743                                                         P_("Enable Grid Lines"),
 744                                                         P_("Whether grid lines should be drawn in the tree view"),
 745                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 746                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 747                                                         GTK_PARAM_READWRITE));
 748
 749     g_object_class_install_property (o_class,
 750                                      PROP_ENABLE_TREE_LINES,
 751                                      g_param_spec_boolean ("enable-tree-lines",
 752                                                            P_("Enable Tree Lines"),
 753                                                            P_("Whether tree lines should be drawn in the tree view"),
 754                                                            FALSE,
 755                                                            GTK_PARAM_READWRITE));
 756
 757     g_object_class_install_property (o_class,
 758                                      PROP_TOOLTIP_COLUMN,
 759                                      g_param_spec_int ("tooltip-column",
 760                                                        P_("Tooltip Column"),
 761                                                        P_("The column in the model containing the tooltip texts for the rows"),
 762                                                        -1,
 763                                                        G_MAXINT,
 764                                                        -1,
 765                                                        GTK_PARAM_READWRITE));
 766
 767   /* Style properties */
 768 #define _TREE_VIEW_EXPANDER_SIZE 12
 769 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 770 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 771
 772   gtk_widget_class_install_style_property (widget_class,
 773                                            g_param_spec_int ("expander-size",
 774                                                              P_("Expander Size"),
 775                                                              P_("Size of the expander arrow"),
 776                                                              0,
 777                                                              G_MAXINT,
 778                                                              _TREE_VIEW_EXPANDER_SIZE,
 779                                                              GTK_PARAM_READABLE));
 780
 781   gtk_widget_class_install_style_property (widget_class,
 782                                            g_param_spec_int ("vertical-separator",
 783                                                              P_("Vertical Separator Width"),
 784                                                              P_("Vertical space between cells.  Must be an even number"),
 785                                                              0,
 786                                                              G_MAXINT,
 787                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 788                                                              GTK_PARAM_READABLE));
 789
 790   gtk_widget_class_install_style_property (widget_class,
 791                                            g_param_spec_int ("horizontal-separator",
 792                                                              P_("Horizontal Separator Width"),
 793                                                              P_("Horizontal space between cells.  Must be an even number"),
 794                                                              0,
 795                                                              G_MAXINT,
 796                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 797                                                              GTK_PARAM_READABLE));
 798
 799   gtk_widget_class_install_style_property (widget_class,
 800                                            g_param_spec_boolean ("allow-rules",
 801                                                                  P_("Allow Rules"),
 802                                                                  P_("Allow drawing of alternating color rows"),
 803                                                                  TRUE,
 804                                                                  GTK_PARAM_READABLE));
 805
 806   gtk_widget_class_install_style_property (widget_class,
 807                                            g_param_spec_boolean ("indent-expanders",
 808                                                                  P_("Indent Expanders"),
 809                                                                  P_("Make the expanders indented"),
 810                                                                  TRUE,
 811                                                                  GTK_PARAM_READABLE));
 812
 813   gtk_widget_class_install_style_property (widget_class,
 814                                            g_param_spec_boxed ("even-row-color",
 815                                                                P_("Even Row Color"),
 816                                                                P_("Color to use for even rows"),
 817                                                                GDK_TYPE_COLOR,
 818                                                                GTK_PARAM_READABLE));
 819
 820   gtk_widget_class_install_style_property (widget_class,
 821                                            g_param_spec_boxed ("odd-row-color",
 822                                                                P_("Odd Row Color"),
 823                                                                P_("Color to use for odd rows"),
 824                                                                GDK_TYPE_COLOR,
 825                                                                GTK_PARAM_READABLE));
 826
 827   gtk_widget_class_install_style_property (widget_class,
 828                                            g_param_spec_boolean ("row-ending-details",
 829                                                                  P_("Row Ending details"),
 830                                                                  P_("Enable extended row background theming"),
 831                                                                  FALSE,
 832                                                                  GTK_PARAM_READABLE));
 833
 834   gtk_widget_class_install_style_property (widget_class,
 835                                            g_param_spec_int ("grid-line-width",
 836                                                              P_("Grid line width"),
 837                                                              P_("Width, in pixels, of the tree view grid lines"),
 838                                                              0, G_MAXINT, 1,
 839                                                              GTK_PARAM_READABLE));
 840
 841   gtk_widget_class_install_style_property (widget_class,
 842                                            g_param_spec_int ("tree-line-width",
 843                                                              P_("Tree line width"),
 844                                                              P_("Width, in pixels, of the tree view lines"),
 845                                                              0, G_MAXINT, 1,
 846                                                              GTK_PARAM_READABLE));
 847
 848   gtk_widget_class_install_style_property (widget_class,
 849                                            g_param_spec_string ("grid-line-pattern",
 850                                                                 P_("Grid line pattern"),
 851                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 852                                                                 "\1\1",
 853                                                                 GTK_PARAM_READABLE));
 854
 855   gtk_widget_class_install_style_property (widget_class,
 856                                            g_param_spec_string ("tree-line-pattern",
 857                                                                 P_("Tree line pattern"),
 858                                                                 P_("Dash pattern used to draw the tree view lines"),
 859                                                                 "\1\1",
 860                                                                 GTK_PARAM_READABLE));
 861
 862   /* Signals */
 863   /**
 864    * GtkTreeView::set-scroll-adjustments
 865    * @horizontal: the horizontal #GtkAdjustment
 866    * @vertical: the vertical #GtkAdjustment
 867    *
 868    * Set the scroll adjustments for the tree view. Usually scrolled containers
 869    * like #GtkScrolledWindow will emit this signal to connect two instances
 870    * of #GtkScrollbar to the scroll directions of the #GtkTreeView.
 871    */
 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_VOID__VOID,
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_VOID__VOID,
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__VOID,
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__VOID,
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__VOID,
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__VOID,
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__VOID,
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   GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy (object);
1696 }
1697
1698 \f
1699
1700 /* GtkWidget Methods
1701  */
1702
1703 /* GtkWidget::map helper */
1704 static void
1705 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1706 {
1707   GList *list;
1708
1709   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1710
1711   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1712     {
1713       GtkTreeViewColumn *column;
1714
1715       for (list = tree_view->priv->columns; list; list = list->next)
1716         {
1717           column = list->data;
1718           if (GTK_WIDGET_VISIBLE (column->button) &&
1719               !GTK_WIDGET_MAPPED (column->button))
1720             gtk_widget_map (column->button);
1721         }
1722       for (list = tree_view->priv->columns; list; list = list->next)
1723         {
1724           column = list->data;
1725           if (column->visible == FALSE)
1726             continue;
1727           if (column->resizable)
1728             {
1729               gdk_window_raise (column->window);
1730               gdk_window_show (column->window);
1731             }
1732           else
1733             gdk_window_hide (column->window);
1734         }
1735       gdk_window_show (tree_view->priv->header_window);
1736     }
1737 }
1738
1739 static void
1740 gtk_tree_view_map (GtkWidget *widget)
1741 {
1742   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1743   GList *tmp_list;
1744
1745   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1746
1747   tmp_list = tree_view->priv->children;
1748   while (tmp_list)
1749     {
1750       GtkTreeViewChild *child = tmp_list->data;
1751       tmp_list = tmp_list->next;
1752
1753       if (GTK_WIDGET_VISIBLE (child->widget))
1754         {
1755           if (!GTK_WIDGET_MAPPED (child->widget))
1756             gtk_widget_map (child->widget);
1757         }
1758     }
1759   gdk_window_show (tree_view->priv->bin_window);
1760
1761   gtk_tree_view_map_buttons (tree_view);
1762
1763   gdk_window_show (widget->window);
1764 }
1765
1766 static void
1767 gtk_tree_view_realize (GtkWidget *widget)
1768 {
1769   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1770   GList *tmp_list;
1771   GdkWindowAttr attributes;
1772   gint attributes_mask;
1773
1774   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1775
1776   /* Make the main, clipping window */
1777   attributes.window_type = GDK_WINDOW_CHILD;
1778   attributes.x = widget->allocation.x;
1779   attributes.y = widget->allocation.y;
1780   attributes.width = widget->allocation.width;
1781   attributes.height = widget->allocation.height;
1782   attributes.wclass = GDK_INPUT_OUTPUT;
1783   attributes.visual = gtk_widget_get_visual (widget);
1784   attributes.colormap = gtk_widget_get_colormap (widget);
1785   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1786
1787   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1788
1789   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1790                                    &attributes, attributes_mask);
1791   gdk_window_set_user_data (widget->window, widget);
1792
1793   /* Make the window for the tree */
1794   attributes.x = 0;
1795   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1796   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1797   attributes.height = widget->allocation.height;
1798   attributes.event_mask = (GDK_EXPOSURE_MASK |
1799                            GDK_SCROLL_MASK |
1800                            GDK_POINTER_MOTION_MASK |
1801                            GDK_ENTER_NOTIFY_MASK |
1802                            GDK_LEAVE_NOTIFY_MASK |
1803                            GDK_BUTTON_PRESS_MASK |
1804                            GDK_BUTTON_RELEASE_MASK |
1805                            gtk_widget_get_events (widget));
1806
1807   tree_view->priv->bin_window = gdk_window_new (widget->window,
1808                                                 &attributes, attributes_mask);
1809   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1810
1811   /* Make the column header window */
1812   attributes.x = 0;
1813   attributes.y = 0;
1814   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1815   attributes.height = tree_view->priv->header_height;
1816   attributes.event_mask = (GDK_EXPOSURE_MASK |
1817                            GDK_SCROLL_MASK |
1818                            GDK_BUTTON_PRESS_MASK |
1819                            GDK_BUTTON_RELEASE_MASK |
1820                            GDK_KEY_PRESS_MASK |
1821                            GDK_KEY_RELEASE_MASK |
1822                            gtk_widget_get_events (widget));
1823
1824   tree_view->priv->header_window = gdk_window_new (widget->window,
1825                                                    &attributes, attributes_mask);
1826   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1827
1828   /* Add them all up. */
1829   widget->style = gtk_style_attach (widget->style, widget->window);
1830   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1831   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1832   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1833
1834   tmp_list = tree_view->priv->children;
1835   while (tmp_list)
1836     {
1837       GtkTreeViewChild *child = tmp_list->data;
1838       tmp_list = tmp_list->next;
1839
1840       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1841     }
1842
1843   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1844     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1845
1846   /* Need to call those here, since they create GCs */
1847   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1848   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1849
1850   install_presize_handler (tree_view);
1851 }
1852
1853 static void
1854 gtk_tree_view_unrealize (GtkWidget *widget)
1855 {
1856   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1857   GtkTreeViewPrivate *priv = tree_view->priv;
1858   GList *list;
1859
1860   if (priv->scroll_timeout != 0)
1861     {
1862       g_source_remove (priv->scroll_timeout);
1863       priv->scroll_timeout = 0;
1864     }
1865
1866   if (priv->auto_expand_timeout != 0)
1867     {
1868       g_source_remove (priv->auto_expand_timeout);
1869       priv->auto_expand_timeout = 0;
1870     }
1871
1872   if (priv->open_dest_timeout != 0)
1873     {
1874       g_source_remove (priv->open_dest_timeout);
1875       priv->open_dest_timeout = 0;
1876     }
1877
1878   remove_expand_collapse_timeout (tree_view);
1879
1880   if (priv->presize_handler_timer != 0)
1881     {
1882       g_source_remove (priv->presize_handler_timer);
1883       priv->presize_handler_timer = 0;
1884     }
1885
1886   if (priv->validate_rows_timer != 0)
1887     {
1888       g_source_remove (priv->validate_rows_timer);
1889       priv->validate_rows_timer = 0;
1890     }
1891
1892   if (priv->scroll_sync_timer != 0)
1893     {
1894       g_source_remove (priv->scroll_sync_timer);
1895       priv->scroll_sync_timer = 0;
1896     }
1897
1898   if (priv->typeselect_flush_timeout)
1899     {
1900       g_source_remove (priv->typeselect_flush_timeout);
1901       priv->typeselect_flush_timeout = 0;
1902     }
1903
1904   for (list = priv->columns; list; list = list->next)
1905     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1906
1907   gdk_window_set_user_data (priv->bin_window, NULL);
1908   gdk_window_destroy (priv->bin_window);
1909   priv->bin_window = NULL;
1910
1911   gdk_window_set_user_data (priv->header_window, NULL);
1912   gdk_window_destroy (priv->header_window);
1913   priv->header_window = NULL;
1914
1915   if (priv->drag_window)
1916     {
1917       gdk_window_set_user_data (priv->drag_window, NULL);
1918       gdk_window_destroy (priv->drag_window);
1919       priv->drag_window = NULL;
1920     }
1921
1922   if (priv->drag_highlight_window)
1923     {
1924       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1925       gdk_window_destroy (priv->drag_highlight_window);
1926       priv->drag_highlight_window = NULL;
1927     }
1928
1929   if (priv->tree_line_gc)
1930     {
1931       g_object_unref (priv->tree_line_gc);
1932       priv->tree_line_gc = NULL;
1933     }
1934
1935   if (priv->grid_line_gc)
1936     {
1937       g_object_unref (priv->grid_line_gc);
1938       priv->grid_line_gc = NULL;
1939     }
1940
1941   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
1942 }
1943
1944 /* GtkWidget::size_request helper */
1945 static void
1946 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1947 {
1948   GList *list;
1949
1950   tree_view->priv->header_height = 0;
1951
1952   if (tree_view->priv->model)
1953     {
1954       for (list = tree_view->priv->columns; list; list = list->next)
1955         {
1956           GtkRequisition requisition;
1957           GtkTreeViewColumn *column = list->data;
1958
1959           if (column->button == NULL)
1960             continue;
1961
1962           column = list->data;
1963
1964           gtk_widget_size_request (column->button, &requisition);
1965           column->button_request = requisition.width;
1966           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1967         }
1968     }
1969 }
1970
1971
1972 /* Called only by ::size_request */
1973 static void
1974 gtk_tree_view_update_size (GtkTreeView *tree_view)
1975 {
1976   GList *list;
1977   GtkTreeViewColumn *column;
1978   gint i;
1979
1980   if (tree_view->priv->model == NULL)
1981     {
1982       tree_view->priv->width = 0;
1983       tree_view->priv->prev_width = 0;
1984       tree_view->priv->height = 0;
1985       return;
1986     }
1987
1988   tree_view->priv->prev_width = tree_view->priv->width;
1989   tree_view->priv->width = 0;
1990
1991   /* keep this in sync with size_allocate below */
1992   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1993     {
1994       gint real_requested_width = 0;
1995       column = list->data;
1996       if (!column->visible)
1997         continue;
1998
1999       if (column->use_resized_width)
2000         {
2001           real_requested_width = column->resized_width;
2002         }
2003       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2004         {
2005           real_requested_width = column->fixed_width;
2006         }
2007       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2008         {
2009           real_requested_width = MAX (column->requested_width, column->button_request);
2010         }
2011       else
2012         {
2013           real_requested_width = column->requested_width;
2014         }
2015
2016       if (column->min_width != -1)
2017         real_requested_width = MAX (real_requested_width, column->min_width);
2018       if (column->max_width != -1)
2019         real_requested_width = MIN (real_requested_width, column->max_width);
2020
2021       tree_view->priv->width += real_requested_width;
2022     }
2023
2024   if (tree_view->priv->tree == NULL)
2025     tree_view->priv->height = 0;
2026   else
2027     tree_view->priv->height = tree_view->priv->tree->root->offset;
2028 }
2029
2030 static void
2031 gtk_tree_view_size_request (GtkWidget      *widget,
2032                             GtkRequisition *requisition)
2033 {
2034   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2035   GList *tmp_list;
2036
2037   /* we validate some rows initially just to make sure we have some size.
2038    * In practice, with a lot of static lists, this should get a good width.
2039    */
2040   do_validate_rows (tree_view, FALSE);
2041   gtk_tree_view_size_request_columns (tree_view);
2042   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2043
2044   requisition->width = tree_view->priv->width;
2045   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2046
2047   tmp_list = tree_view->priv->children;
2048
2049   while (tmp_list)
2050     {
2051       GtkTreeViewChild *child = tmp_list->data;
2052       GtkRequisition child_requisition;
2053
2054       tmp_list = tmp_list->next;
2055
2056       if (GTK_WIDGET_VISIBLE (child->widget))
2057         gtk_widget_size_request (child->widget, &child_requisition);
2058     }
2059 }
2060
2061
2062 static void
2063 invalidate_column (GtkTreeView       *tree_view,
2064                    GtkTreeViewColumn *column)
2065 {
2066   gint column_offset = 0;
2067   GList *list;
2068   GtkWidget *widget = GTK_WIDGET (tree_view);
2069   gboolean rtl;
2070
2071   if (!GTK_WIDGET_REALIZED (widget))
2072     return;
2073
2074   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2075   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2076        list;
2077        list = (rtl ? list->prev : list->next))
2078     {
2079       GtkTreeViewColumn *tmpcolumn = list->data;
2080       if (tmpcolumn == column)
2081         {
2082           GdkRectangle invalid_rect;
2083
2084           invalid_rect.x = column_offset;
2085           invalid_rect.y = 0;
2086           invalid_rect.width = column->width;
2087           invalid_rect.height = widget->allocation.height;
2088
2089           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2090           break;
2091         }
2092
2093       column_offset += tmpcolumn->width;
2094     }
2095 }
2096
2097 static void
2098 invalidate_last_column (GtkTreeView *tree_view)
2099 {
2100   GList *last_column;
2101   gboolean rtl;
2102
2103   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2104
2105   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2106        last_column;
2107        last_column = (rtl ? last_column->next : last_column->prev))
2108     {
2109       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2110         {
2111           invalidate_column (tree_view, last_column->data);
2112           return;
2113         }
2114     }
2115 }
2116
2117 static gint
2118 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2119                                                     GtkTreeViewColumn *column)
2120 {
2121   gint real_requested_width;
2122
2123   if (column->use_resized_width)
2124     {
2125       real_requested_width = column->resized_width;
2126     }
2127   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2128     {
2129       real_requested_width = column->fixed_width;
2130     }
2131   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2132     {
2133       real_requested_width = MAX (column->requested_width, column->button_request);
2134     }
2135   else
2136     {
2137       real_requested_width = column->requested_width;
2138       if (real_requested_width < 0)
2139         real_requested_width = 0;
2140     }
2141
2142   if (column->min_width != -1)
2143     real_requested_width = MAX (real_requested_width, column->min_width);
2144   if (column->max_width != -1)
2145     real_requested_width = MIN (real_requested_width, column->max_width);
2146
2147   return real_requested_width;
2148 }
2149
2150 /* GtkWidget::size_allocate helper */
2151 static void
2152 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2153                                      gboolean  *width_changed)
2154 {
2155   GtkTreeView *tree_view;
2156   GList *list, *first_column, *last_column;
2157   GtkTreeViewColumn *column;
2158   GtkAllocation allocation;
2159   gint width = 0;
2160   gint extra, extra_per_column, extra_for_last;
2161   gint full_requested_width = 0;
2162   gint number_of_expand_columns = 0;
2163   gboolean column_changed = FALSE;
2164   gboolean rtl;
2165   gboolean update_expand;
2166
2167   tree_view = GTK_TREE_VIEW (widget);
2168
2169   for (last_column = g_list_last (tree_view->priv->columns);
2170        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2171        last_column = last_column->prev)
2172     ;
2173   if (last_column == NULL)
2174     return;
2175
2176   for (first_column = g_list_first (tree_view->priv->columns);
2177        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2178        first_column = first_column->next)
2179     ;
2180
2181   allocation.y = 0;
2182   allocation.height = tree_view->priv->header_height;
2183
2184   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2185
2186   /* find out how many extra space and expandable columns we have */
2187   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2188     {
2189       column = (GtkTreeViewColumn *)list->data;
2190
2191       if (!column->visible)
2192         continue;
2193
2194       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2195
2196       if (column->expand)
2197         number_of_expand_columns++;
2198     }
2199
2200   /* Only update the expand value if the width of the widget has changed,
2201    * or the number of expand columns has changed, or if there are no expand
2202    * columns, or if we didn't have an size-allocation yet after the
2203    * last validated node.
2204    */
2205   update_expand = (width_changed && *width_changed == TRUE)
2206       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2207       || number_of_expand_columns == 0
2208       || tree_view->priv->post_validation_flag == TRUE;
2209
2210   tree_view->priv->post_validation_flag = FALSE;
2211
2212   if (!update_expand)
2213     {
2214       extra = tree_view->priv->last_extra_space;
2215       extra_for_last = MAX (widget->allocation.width - full_requested_width - extra, 0);
2216     }
2217   else
2218     {
2219       extra = MAX (widget->allocation.width - full_requested_width, 0);
2220       extra_for_last = 0;
2221
2222       tree_view->priv->last_extra_space = extra;
2223     }
2224
2225   if (number_of_expand_columns > 0)
2226     extra_per_column = extra/number_of_expand_columns;
2227   else
2228     extra_per_column = 0;
2229
2230   if (update_expand)
2231     {
2232       tree_view->priv->last_extra_space_per_column = extra_per_column;
2233       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2234     }
2235
2236   for (list = (rtl ? last_column : first_column);
2237        list != (rtl ? first_column->prev : last_column->next);
2238        list = (rtl ? list->prev : list->next))
2239     {
2240       gint real_requested_width = 0;
2241       gint old_width;
2242
2243       column = list->data;
2244       old_width = column->width;
2245
2246       if (!column->visible)
2247         continue;
2248
2249       /* We need to handle the dragged button specially.
2250        */
2251       if (column == tree_view->priv->drag_column)
2252         {
2253           GtkAllocation drag_allocation;
2254           gdk_drawable_get_size (tree_view->priv->drag_window,
2255                                  &(drag_allocation.width),
2256                                  &(drag_allocation.height));
2257           drag_allocation.x = 0;
2258           drag_allocation.y = 0;
2259           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2260                                     &drag_allocation);
2261           width += drag_allocation.width;
2262           continue;
2263         }
2264
2265       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2266
2267       allocation.x = width;
2268       column->width = real_requested_width;
2269
2270       if (column->expand)
2271         {
2272           if (number_of_expand_columns == 1)
2273             {
2274               /* We add the remander to the last column as
2275                * */
2276               column->width += extra;
2277             }
2278           else
2279             {
2280               column->width += extra_per_column;
2281               extra -= extra_per_column;
2282               number_of_expand_columns --;
2283             }
2284         }
2285       else if (number_of_expand_columns == 0 &&
2286                list == last_column)
2287         {
2288           column->width += extra;
2289         }
2290
2291       /* In addition to expand, the last column can get even more
2292        * extra space so all available space is filled up.
2293        */
2294       if (extra_for_last > 0 && list == last_column)
2295         column->width += extra_for_last;
2296
2297       g_object_notify (G_OBJECT (column), "width");
2298
2299       allocation.width = column->width;
2300       width += column->width;
2301
2302       if (column->width > old_width)
2303         column_changed = TRUE;
2304
2305       gtk_widget_size_allocate (column->button, &allocation);
2306
2307       if (column->window)
2308         gdk_window_move_resize (column->window,
2309                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2310                                 allocation.y,
2311                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2312     }
2313
2314   /* We change the width here.  The user might have been resizing columns,
2315    * so the total width of the tree view changes.
2316    */
2317   tree_view->priv->width = width;
2318   if (width_changed)
2319     *width_changed = TRUE;
2320
2321   if (column_changed)
2322     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2323 }
2324
2325
2326 static void
2327 gtk_tree_view_size_allocate (GtkWidget     *widget,
2328                              GtkAllocation *allocation)
2329 {
2330   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2331   GList *tmp_list;
2332   gboolean width_changed = FALSE;
2333   gint old_width = widget->allocation.width;
2334
2335   if (allocation->width != widget->allocation.width)
2336     width_changed = TRUE;
2337
2338   widget->allocation = *allocation;
2339
2340   tmp_list = tree_view->priv->children;
2341
2342   while (tmp_list)
2343     {
2344       GtkAllocation allocation;
2345
2346       GtkTreeViewChild *child = tmp_list->data;
2347       tmp_list = tmp_list->next;
2348
2349       /* totally ignore our child's requisition */
2350       allocation.x = child->x;
2351       allocation.y = child->y;
2352       allocation.width = child->width;
2353       allocation.height = child->height;
2354       gtk_widget_size_allocate (child->widget, &allocation);
2355     }
2356
2357   /* We size-allocate the columns first because the width of the
2358    * tree view (used in updating the adjustments below) might change.
2359    */
2360   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2361
2362   tree_view->priv->hadjustment->page_size = allocation->width;
2363   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2364   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2365   tree_view->priv->hadjustment->lower = 0;
2366   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2367
2368   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2369     {
2370       if (allocation->width < tree_view->priv->width)
2371         {
2372           if (tree_view->priv->init_hadjust_value)
2373             {
2374               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2375               tree_view->priv->init_hadjust_value = FALSE;
2376             }
2377           else if (allocation->width != old_width)
2378             {
2379               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2380             }
2381           else
2382             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);
2383         }
2384       else
2385         {
2386           tree_view->priv->hadjustment->value = 0;
2387           tree_view->priv->init_hadjust_value = TRUE;
2388         }
2389     }
2390   else
2391     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2392       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2393
2394   gtk_adjustment_changed (tree_view->priv->hadjustment);
2395
2396   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2397   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2398   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2399   tree_view->priv->vadjustment->lower = 0;
2400   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2401
2402   gtk_adjustment_changed (tree_view->priv->vadjustment);
2403
2404   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2405   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2406     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2407   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2408     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2409                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2410   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2411     gtk_tree_view_top_row_to_dy (tree_view);
2412   else
2413     gtk_tree_view_dy_to_top_row (tree_view);
2414
2415   if (GTK_WIDGET_REALIZED (widget))
2416     {
2417       gdk_window_move_resize (widget->window,
2418                               allocation->x, allocation->y,
2419                               allocation->width, allocation->height);
2420       gdk_window_move_resize (tree_view->priv->header_window,
2421                               - (gint) tree_view->priv->hadjustment->value,
2422                               0,
2423                               MAX (tree_view->priv->width, allocation->width),
2424                               tree_view->priv->header_height);
2425       gdk_window_move_resize (tree_view->priv->bin_window,
2426                               - (gint) tree_view->priv->hadjustment->value,
2427                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2428                               MAX (tree_view->priv->width, allocation->width),
2429                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2430     }
2431
2432   if (tree_view->priv->tree == NULL)
2433     invalidate_empty_focus (tree_view);
2434
2435   if (GTK_WIDGET_REALIZED (widget))
2436     {
2437       gboolean has_expand_column = FALSE;
2438       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2439         {
2440           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2441             {
2442               has_expand_column = TRUE;
2443               break;
2444             }
2445         }
2446
2447       /* This little hack only works if we have an LTR locale, and no column has the  */
2448       if (width_changed)
2449         {
2450           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2451               ! has_expand_column)
2452             invalidate_last_column (tree_view);
2453           else
2454             gtk_widget_queue_draw (widget);
2455         }
2456     }
2457 }
2458
2459 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2460 static void
2461 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2462 {
2463   if (GTK_WIDGET_CAN_FOCUS (tree_view) && !GTK_WIDGET_HAS_FOCUS (tree_view))
2464     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2465   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2466 }
2467
2468 static inline gboolean
2469 row_is_separator (GtkTreeView *tree_view,
2470                   GtkTreeIter *iter,
2471                   GtkTreePath *path)
2472 {
2473   gboolean is_separator = FALSE;
2474
2475   if (tree_view->priv->row_separator_func)
2476     {
2477       GtkTreeIter tmpiter;
2478
2479       if (iter)
2480         tmpiter = *iter;
2481       else
2482         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2483
2484       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2485                                                           &tmpiter,
2486                                                           tree_view->priv->row_separator_data);
2487     }
2488
2489   return is_separator;
2490 }
2491
2492 static gboolean
2493 gtk_tree_view_button_press (GtkWidget      *widget,
2494                             GdkEventButton *event)
2495 {
2496   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2497   GList *list;
2498   GtkTreeViewColumn *column = NULL;
2499   gint i;
2500   GdkRectangle background_area;
2501   GdkRectangle cell_area;
2502   gint vertical_separator;
2503   gint horizontal_separator;
2504   gboolean path_is_selectable;
2505   gboolean rtl;
2506
2507   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2508   gtk_tree_view_stop_editing (tree_view, FALSE);
2509   gtk_widget_style_get (widget,
2510                         "vertical-separator", &vertical_separator,
2511                         "horizontal-separator", &horizontal_separator,
2512                         NULL);
2513
2514
2515   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2516    * we're done handling the button press.
2517    */
2518
2519   if (event->window == tree_view->priv->bin_window)
2520     {
2521       GtkRBNode *node;
2522       GtkRBTree *tree;
2523       GtkTreePath *path;
2524       gchar *path_string;
2525       gint depth;
2526       gint new_y;
2527       gint y_offset;
2528       gint dval;
2529       gint pre_val, aft_val;
2530       GtkTreeViewColumn *column = NULL;
2531       GtkCellRenderer *focus_cell = NULL;
2532       gint column_handled_click = FALSE;
2533       gboolean row_double_click = FALSE;
2534       gboolean rtl;
2535       gboolean node_selected;
2536
2537       /* Empty tree? */
2538       if (tree_view->priv->tree == NULL)
2539         {
2540           grab_focus_and_unset_draw_keyfocus (tree_view);
2541           return TRUE;
2542         }
2543
2544       /* are we in an arrow? */
2545       if (tree_view->priv->prelight_node &&
2546           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2547           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2548         {
2549           if (event->button == 1)
2550             {
2551               gtk_grab_add (widget);
2552               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2553               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2554               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2555                                         tree_view->priv->prelight_tree,
2556                                         tree_view->priv->prelight_node,
2557                                         event->x,
2558                                         event->y);
2559             }
2560
2561           grab_focus_and_unset_draw_keyfocus (tree_view);
2562           return TRUE;
2563         }
2564
2565       /* find the node that was clicked */
2566       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2567       if (new_y < 0)
2568         new_y = 0;
2569       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2570
2571       if (node == NULL)
2572         {
2573           /* We clicked in dead space */
2574           grab_focus_and_unset_draw_keyfocus (tree_view);
2575           return TRUE;
2576         }
2577
2578       /* Get the path and the node */
2579       path = _gtk_tree_view_find_path (tree_view, tree, node);
2580       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2581
2582       if (!path_is_selectable)
2583         {
2584           gtk_tree_path_free (path);
2585           grab_focus_and_unset_draw_keyfocus (tree_view);
2586           return TRUE;
2587         }
2588
2589       depth = gtk_tree_path_get_depth (path);
2590       background_area.y = y_offset + event->y;
2591       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2592       background_area.x = 0;
2593
2594
2595       /* Let the column have a chance at selecting it. */
2596       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2597       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2598            list; list = (rtl ? list->prev : list->next))
2599         {
2600           GtkTreeViewColumn *candidate = list->data;
2601
2602           if (!candidate->visible)
2603             continue;
2604
2605           background_area.width = candidate->width;
2606           if ((background_area.x > (gint) event->x) ||
2607               (background_area.x + background_area.width <= (gint) event->x))
2608             {
2609               background_area.x += background_area.width;
2610               continue;
2611             }
2612
2613           /* we found the focus column */
2614           column = candidate;
2615           cell_area = background_area;
2616           cell_area.width -= horizontal_separator;
2617           cell_area.height -= vertical_separator;
2618           cell_area.x += horizontal_separator/2;
2619           cell_area.y += vertical_separator/2;
2620           if (gtk_tree_view_is_expander_column (tree_view, column))
2621             {
2622               if (!rtl)
2623                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2624               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2625
2626               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2627                 {
2628                   if (!rtl)
2629                     cell_area.x += depth * tree_view->priv->expander_size;
2630                   cell_area.width -= depth * tree_view->priv->expander_size;
2631                 }
2632             }
2633           break;
2634         }
2635
2636       if (column == NULL)
2637         {
2638           gtk_tree_path_free (path);
2639           grab_focus_and_unset_draw_keyfocus (tree_view);
2640           return FALSE;
2641         }
2642
2643       tree_view->priv->focus_column = column;
2644
2645       /* decide if we edit */
2646       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2647           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2648         {
2649           GtkTreePath *anchor;
2650           GtkTreeIter iter;
2651
2652           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2653           gtk_tree_view_column_cell_set_cell_data (column,
2654                                                    tree_view->priv->model,
2655                                                    &iter,
2656                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2657                                                    node->children?TRUE:FALSE);
2658
2659           if (tree_view->priv->anchor)
2660             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2661           else
2662             anchor = NULL;
2663
2664           if ((anchor && !gtk_tree_path_compare (anchor, path))
2665               || !_gtk_tree_view_column_has_editable_cell (column))
2666             {
2667               GtkCellEditable *cell_editable = NULL;
2668
2669               /* FIXME: get the right flags */
2670               guint flags = 0;
2671
2672               path_string = gtk_tree_path_to_string (path);
2673
2674               if (_gtk_tree_view_column_cell_event (column,
2675                                                     &cell_editable,
2676                                                     (GdkEvent *)event,
2677                                                     path_string,
2678                                                     &background_area,
2679                                                     &cell_area, flags))
2680                 {
2681                   if (cell_editable != NULL)
2682                     {
2683                       gint left, right;
2684                       GdkRectangle area;
2685
2686                       area = cell_area;
2687                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2688
2689                       area.x += left;
2690                       area.width -= right + left;
2691
2692                       gtk_tree_view_real_start_editing (tree_view,
2693                                                         column,
2694                                                         path,
2695                                                         cell_editable,
2696                                                         &area,
2697                                                         (GdkEvent *)event,
2698                                                         flags);
2699                       g_free (path_string);
2700                       gtk_tree_path_free (path);
2701                       gtk_tree_path_free (anchor);
2702                       return TRUE;
2703                     }
2704                   column_handled_click = TRUE;
2705                 }
2706               g_free (path_string);
2707             }
2708           if (anchor)
2709             gtk_tree_path_free (anchor);
2710         }
2711
2712       /* select */
2713       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2714       pre_val = tree_view->priv->vadjustment->value;
2715
2716       /* we only handle selection modifications on the first button press
2717        */
2718       if (event->type == GDK_BUTTON_PRESS)
2719         {
2720           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2721             tree_view->priv->ctrl_pressed = TRUE;
2722           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2723             tree_view->priv->shift_pressed = TRUE;
2724
2725           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2726           if (focus_cell)
2727             gtk_tree_view_column_focus_cell (column, focus_cell);
2728
2729           if (event->state & GDK_CONTROL_MASK)
2730             {
2731               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2732               gtk_tree_view_real_toggle_cursor_row (tree_view);
2733             }
2734           else if (event->state & GDK_SHIFT_MASK)
2735             {
2736               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2737               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2738             }
2739           else
2740             {
2741               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2742             }
2743
2744           tree_view->priv->ctrl_pressed = FALSE;
2745           tree_view->priv->shift_pressed = FALSE;
2746         }
2747
2748       /* the treeview may have been scrolled because of _set_cursor,
2749        * correct here
2750        */
2751
2752       aft_val = tree_view->priv->vadjustment->value;
2753       dval = pre_val - aft_val;
2754
2755       cell_area.y += dval;
2756       background_area.y += dval;
2757
2758       /* Save press to possibly begin a drag
2759        */
2760       if (!column_handled_click &&
2761           !tree_view->priv->in_grab &&
2762           tree_view->priv->pressed_button < 0)
2763         {
2764           tree_view->priv->pressed_button = event->button;
2765           tree_view->priv->press_start_x = event->x;
2766           tree_view->priv->press_start_y = event->y;
2767
2768           if (tree_view->priv->rubber_banding_enable
2769               && !node_selected
2770               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2771             {
2772               tree_view->priv->press_start_y += tree_view->priv->dy;
2773               tree_view->priv->rubber_band_x = event->x;
2774               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2775               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2776
2777               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2778                 tree_view->priv->rubber_band_ctrl = TRUE;
2779               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2780                 tree_view->priv->rubber_band_shift = TRUE;
2781             }
2782         }
2783
2784       /* Test if a double click happened on the same row. */
2785       if (event->button == 1)
2786         {
2787           /* We also handle triple clicks here, because a user could have done
2788            * a first click and a second double click on different rows.
2789            */
2790           if ((event->type == GDK_2BUTTON_PRESS
2791                || event->type == GDK_3BUTTON_PRESS)
2792               && tree_view->priv->last_button_press)
2793             {
2794               GtkTreePath *lsc;
2795
2796               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2797
2798               if (lsc)
2799                 {
2800                   row_double_click = !gtk_tree_path_compare (lsc, path);
2801                   gtk_tree_path_free (lsc);
2802                 }
2803             }
2804
2805           if (row_double_click)
2806             {
2807               if (tree_view->priv->last_button_press)
2808                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2809               if (tree_view->priv->last_button_press_2)
2810                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2811               tree_view->priv->last_button_press = NULL;
2812               tree_view->priv->last_button_press_2 = NULL;
2813             }
2814           else
2815             {
2816               if (tree_view->priv->last_button_press)
2817                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2818               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2819               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2820             }
2821         }
2822
2823       if (row_double_click)
2824         {
2825           gtk_grab_remove (widget);
2826           gtk_tree_view_row_activated (tree_view, path, column);
2827
2828           if (tree_view->priv->pressed_button == event->button)
2829             tree_view->priv->pressed_button = -1;
2830         }
2831
2832       gtk_tree_path_free (path);
2833
2834       /* If we activated the row through a double click we don't want to grab
2835        * focus back, as moving focus to another widget is pretty common.
2836        */
2837       if (!row_double_click)
2838         grab_focus_and_unset_draw_keyfocus (tree_view);
2839
2840       return TRUE;
2841     }
2842
2843   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2844    */
2845   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2846     {
2847       column = list->data;
2848       if (event->window == column->window &&
2849           column->resizable &&
2850           column->window)
2851         {
2852           gpointer drag_data;
2853
2854           if (event->type == GDK_2BUTTON_PRESS &&
2855               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2856             {
2857               column->use_resized_width = FALSE;
2858               _gtk_tree_view_column_autosize (tree_view, column);
2859               return TRUE;
2860             }
2861
2862           if (gdk_pointer_grab (column->window, FALSE,
2863                                 GDK_POINTER_MOTION_HINT_MASK |
2864                                 GDK_BUTTON1_MOTION_MASK |
2865                                 GDK_BUTTON_RELEASE_MASK,
2866                                 NULL, NULL, event->time))
2867             return FALSE;
2868
2869           gtk_grab_add (widget);
2870           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2871           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2872
2873           /* block attached dnd signal handler */
2874           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2875           if (drag_data)
2876             g_signal_handlers_block_matched (widget,
2877                                              G_SIGNAL_MATCH_DATA,
2878                                              0, 0, NULL, NULL,
2879                                              drag_data);
2880
2881           tree_view->priv->drag_pos = i;
2882           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2883
2884           if (!GTK_WIDGET_HAS_FOCUS (widget))
2885             gtk_widget_grab_focus (widget);
2886
2887           return TRUE;
2888         }
2889     }
2890   return FALSE;
2891 }
2892
2893 /* GtkWidget::button_release_event helper */
2894 static gboolean
2895 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2896                                           GdkEventButton *event)
2897 {
2898   GtkTreeView *tree_view;
2899   GList *l;
2900   gboolean rtl;
2901
2902   tree_view = GTK_TREE_VIEW (widget);
2903
2904   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2905   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2906   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2907
2908   /* Move the button back */
2909   g_object_ref (tree_view->priv->drag_column->button);
2910   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2911   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2912   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2913   g_object_unref (tree_view->priv->drag_column->button);
2914   gtk_widget_queue_resize (widget);
2915   if (tree_view->priv->drag_column->resizable)
2916     {
2917       gdk_window_raise (tree_view->priv->drag_column->window);
2918       gdk_window_show (tree_view->priv->drag_column->window);
2919     }
2920   else
2921     gdk_window_hide (tree_view->priv->drag_column->window);
2922
2923   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2924
2925   if (rtl)
2926     {
2927       if (tree_view->priv->cur_reorder &&
2928           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2929         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2930                                          tree_view->priv->cur_reorder->right_column);
2931     }
2932   else
2933     {
2934       if (tree_view->priv->cur_reorder &&
2935           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2936         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2937                                          tree_view->priv->cur_reorder->left_column);
2938     }
2939   tree_view->priv->drag_column = NULL;
2940   gdk_window_hide (tree_view->priv->drag_window);
2941
2942   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2943     g_slice_free (GtkTreeViewColumnReorder, l->data);
2944   g_list_free (tree_view->priv->column_drag_info);
2945   tree_view->priv->column_drag_info = NULL;
2946   tree_view->priv->cur_reorder = NULL;
2947
2948   if (tree_view->priv->drag_highlight_window)
2949     gdk_window_hide (tree_view->priv->drag_highlight_window);
2950
2951   /* Reset our flags */
2952   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2953   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2954
2955   return TRUE;
2956 }
2957
2958 /* GtkWidget::button_release_event helper */
2959 static gboolean
2960 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2961                                             GdkEventButton *event)
2962 {
2963   GtkTreeView *tree_view;
2964   gpointer drag_data;
2965
2966   tree_view = GTK_TREE_VIEW (widget);
2967
2968   tree_view->priv->drag_pos = -1;
2969
2970   /* unblock attached dnd signal handler */
2971   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2972   if (drag_data)
2973     g_signal_handlers_unblock_matched (widget,
2974                                        G_SIGNAL_MATCH_DATA,
2975                                        0, 0, NULL, NULL,
2976                                        drag_data);
2977
2978   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2979   gtk_grab_remove (widget);
2980   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2981                               event->time);
2982   return TRUE;
2983 }
2984
2985 static gboolean
2986 gtk_tree_view_button_release (GtkWidget      *widget,
2987                               GdkEventButton *event)
2988 {
2989   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2990
2991   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2992     return gtk_tree_view_button_release_drag_column (widget, event);
2993
2994   if (tree_view->priv->rubber_band_status)
2995     gtk_tree_view_stop_rubber_band (tree_view);
2996
2997   if (tree_view->priv->pressed_button == event->button)
2998     tree_view->priv->pressed_button = -1;
2999
3000   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3001     return gtk_tree_view_button_release_column_resize (widget, event);
3002
3003   if (tree_view->priv->button_pressed_node == NULL)
3004     return FALSE;
3005
3006   if (event->button == 1)
3007     {
3008       gtk_grab_remove (widget);
3009       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3010           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3011         {
3012           GtkTreePath *path = NULL;
3013
3014           path = _gtk_tree_view_find_path (tree_view,
3015                                            tree_view->priv->button_pressed_tree,
3016                                            tree_view->priv->button_pressed_node);
3017           /* Actually activate the node */
3018           if (tree_view->priv->button_pressed_node->children == NULL)
3019             gtk_tree_view_real_expand_row (tree_view, path,
3020                                            tree_view->priv->button_pressed_tree,
3021                                            tree_view->priv->button_pressed_node,
3022                                            FALSE, TRUE);
3023           else
3024             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3025                                              tree_view->priv->button_pressed_tree,
3026                                              tree_view->priv->button_pressed_node, TRUE);
3027           gtk_tree_path_free (path);
3028         }
3029
3030       tree_view->priv->button_pressed_tree = NULL;
3031       tree_view->priv->button_pressed_node = NULL;
3032     }
3033
3034   return TRUE;
3035 }
3036
3037 static gboolean
3038 gtk_tree_view_grab_broken (GtkWidget          *widget,
3039                            GdkEventGrabBroken *event)
3040 {
3041   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3042
3043   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3044     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3045
3046   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3047     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3048
3049   return TRUE;
3050 }
3051
3052 #if 0
3053 static gboolean
3054 gtk_tree_view_configure (GtkWidget *widget,
3055                          GdkEventConfigure *event)
3056 {
3057   GtkTreeView *tree_view;
3058
3059   tree_view = GTK_TREE_VIEW (widget);
3060   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3061
3062   return FALSE;
3063 }
3064 #endif
3065
3066 /* GtkWidget::motion_event function set.
3067  */
3068
3069 static gboolean
3070 coords_are_over_arrow (GtkTreeView *tree_view,
3071                        GtkRBTree   *tree,
3072                        GtkRBNode   *node,
3073                        /* these are in bin window coords */
3074                        gint         x,
3075                        gint         y)
3076 {
3077   GdkRectangle arrow;
3078   gint x2;
3079
3080   if (!GTK_WIDGET_REALIZED (tree_view))
3081     return FALSE;
3082
3083   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3084     return FALSE;
3085
3086   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3087
3088   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3089
3090   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3091
3092   arrow.width = x2 - arrow.x;
3093
3094   return (x >= arrow.x &&
3095           x < (arrow.x + arrow.width) &&
3096           y >= arrow.y &&
3097           y < (arrow.y + arrow.height));
3098 }
3099
3100 static gboolean
3101 auto_expand_timeout (gpointer data)
3102 {
3103   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3104   GtkTreePath *path;
3105
3106   if (tree_view->priv->prelight_node)
3107     {
3108       path = _gtk_tree_view_find_path (tree_view,
3109                                        tree_view->priv->prelight_tree,
3110                                        tree_view->priv->prelight_node);
3111
3112       if (tree_view->priv->prelight_node->children)
3113         gtk_tree_view_collapse_row (tree_view, path);
3114       else
3115         gtk_tree_view_expand_row (tree_view, path, FALSE);
3116
3117       gtk_tree_path_free (path);
3118     }
3119
3120   tree_view->priv->auto_expand_timeout = 0;
3121
3122   return FALSE;
3123 }
3124
3125 static void
3126 remove_auto_expand_timeout (GtkTreeView *tree_view)
3127 {
3128   if (tree_view->priv->auto_expand_timeout != 0)
3129     {
3130       g_source_remove (tree_view->priv->auto_expand_timeout);
3131       tree_view->priv->auto_expand_timeout = 0;
3132     }
3133 }
3134
3135 static void
3136 do_prelight (GtkTreeView *tree_view,
3137              GtkRBTree   *tree,
3138              GtkRBNode   *node,
3139              /* these are in bin_window coords */
3140              gint         x,
3141              gint         y)
3142 {
3143   if (tree_view->priv->prelight_tree == tree &&
3144       tree_view->priv->prelight_node == node)
3145     {
3146       /*  We are still on the same node,
3147           but we might need to take care of the arrow  */
3148
3149       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3150         {
3151           gboolean over_arrow;
3152           gboolean flag_set;
3153
3154           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3155           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3156                                              GTK_TREE_VIEW_ARROW_PRELIT);
3157
3158           if (over_arrow != flag_set)
3159             {
3160               if (over_arrow)
3161                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3162                                         GTK_TREE_VIEW_ARROW_PRELIT);
3163               else
3164                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3165                                           GTK_TREE_VIEW_ARROW_PRELIT);
3166
3167               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3168             }
3169         }
3170
3171       return;
3172     }
3173
3174   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3175     {
3176       /*  Unprelight the old node and arrow  */
3177
3178       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3179                              GTK_RBNODE_IS_PRELIT);
3180
3181       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3182           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3183         {
3184           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3185
3186           gtk_tree_view_draw_arrow (tree_view,
3187                                     tree_view->priv->prelight_tree,
3188                                     tree_view->priv->prelight_node,
3189                                     x,
3190                                     y);
3191         }
3192
3193       _gtk_tree_view_queue_draw_node (tree_view,
3194                                       tree_view->priv->prelight_tree,
3195                                       tree_view->priv->prelight_node,
3196                                       NULL);
3197     }
3198
3199
3200   if (tree_view->priv->hover_expand)
3201     remove_auto_expand_timeout (tree_view);
3202
3203   /*  Set the new prelight values  */
3204   tree_view->priv->prelight_node = node;
3205   tree_view->priv->prelight_tree = tree;
3206
3207   if (!node || !tree)
3208     return;
3209
3210   /*  Prelight the new node and arrow  */
3211
3212   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3213       && coords_are_over_arrow (tree_view, tree, node, x, y))
3214     {
3215       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3216
3217       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3218     }
3219
3220   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3221
3222   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3223
3224   if (tree_view->priv->hover_expand)
3225     {
3226       tree_view->priv->auto_expand_timeout =
3227         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3228     }
3229 }
3230
3231 static void
3232 prelight_or_select (GtkTreeView *tree_view,
3233                     GtkRBTree   *tree,
3234                     GtkRBNode   *node,
3235                     /* these are in bin_window coords */
3236                     gint         x,
3237                     gint         y)
3238 {
3239   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3240
3241   if (tree_view->priv->hover_selection &&
3242       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3243       !(tree_view->priv->edited_column &&
3244         tree_view->priv->edited_column->editable_widget))
3245     {
3246       if (node)
3247         {
3248           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3249             {
3250               GtkTreePath *path;
3251
3252               path = _gtk_tree_view_find_path (tree_view, tree, node);
3253               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3254               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3255                 {
3256                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3257                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3258                 }
3259               gtk_tree_path_free (path);
3260             }
3261         }
3262
3263       else if (mode == GTK_SELECTION_SINGLE)
3264         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3265     }
3266
3267     do_prelight (tree_view, tree, node, x, y);
3268 }
3269
3270 static void
3271 ensure_unprelighted (GtkTreeView *tree_view)
3272 {
3273   do_prelight (tree_view,
3274                NULL, NULL,
3275                -1000, -1000); /* coords not possibly over an arrow */
3276
3277   g_assert (tree_view->priv->prelight_node == NULL);
3278 }
3279
3280
3281
3282
3283 /* Our motion arrow is either a box (in the case of the original spot)
3284  * or an arrow.  It is expander_size wide.
3285  */
3286 /*
3287  * 11111111111111
3288  * 01111111111110
3289  * 00111111111100
3290  * 00011111111000
3291  * 00001111110000
3292  * 00000111100000
3293  * 00000111100000
3294  * 00000111100000
3295  * ~ ~ ~ ~ ~ ~ ~
3296  * 00000111100000
3297  * 00000111100000
3298  * 00000111100000
3299  * 00001111110000
3300  * 00011111111000
3301  * 00111111111100
3302  * 01111111111110
3303  * 11111111111111
3304  */
3305
3306 static void
3307 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3308 {
3309   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3310   GtkWidget *widget = GTK_WIDGET (tree_view);
3311   GdkBitmap *mask = NULL;
3312   gint x;
3313   gint y;
3314   gint width;
3315   gint height;
3316   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3317   GdkWindowAttr attributes;
3318   guint attributes_mask;
3319
3320   if (!reorder ||
3321       reorder->left_column == tree_view->priv->drag_column ||
3322       reorder->right_column == tree_view->priv->drag_column)
3323     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3324   else if (reorder->left_column || reorder->right_column)
3325     {
3326       GdkRectangle visible_rect;
3327       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3328       if (reorder->left_column)
3329         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3330       else
3331         x = reorder->right_column->button->allocation.x;
3332
3333       if (x < visible_rect.x)
3334         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3335       else if (x > visible_rect.x + visible_rect.width)
3336         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3337       else
3338         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3339     }
3340
3341   /* We want to draw the rectangle over the initial location. */
3342   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3343     {
3344       GdkGC *gc;
3345       GdkColor col;
3346
3347       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3348         {
3349           if (tree_view->priv->drag_highlight_window)
3350             {
3351               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3352                                         NULL);
3353               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3354             }
3355
3356           attributes.window_type = GDK_WINDOW_CHILD;
3357           attributes.wclass = GDK_INPUT_OUTPUT;
3358           attributes.x = tree_view->priv->drag_column_x;
3359           attributes.y = 0;
3360           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3361           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3362           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3363           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3364           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3365           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3366           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3367           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3368
3369           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3370           gc = gdk_gc_new (mask);
3371           col.pixel = 1;
3372           gdk_gc_set_foreground (gc, &col);
3373           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3374           col.pixel = 0;
3375           gdk_gc_set_foreground(gc, &col);
3376           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3377           g_object_unref (gc);
3378
3379           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3380                                          mask, 0, 0);
3381           if (mask) g_object_unref (mask);
3382           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3383         }
3384     }
3385   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3386     {
3387       gint i, j = 1;
3388       GdkGC *gc;
3389       GdkColor col;
3390
3391       width = tree_view->priv->expander_size;
3392
3393       /* Get x, y, width, height of arrow */
3394       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3395       if (reorder->left_column)
3396         {
3397           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3398           height = reorder->left_column->button->allocation.height;
3399         }
3400       else
3401         {
3402           x += reorder->right_column->button->allocation.x - width/2;
3403           height = reorder->right_column->button->allocation.height;
3404         }
3405       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3406       height += tree_view->priv->expander_size;
3407
3408       /* Create the new window */
3409       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3410         {
3411           if (tree_view->priv->drag_highlight_window)
3412             {
3413               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3414                                         NULL);
3415               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3416             }
3417
3418           attributes.window_type = GDK_WINDOW_TEMP;
3419           attributes.wclass = GDK_INPUT_OUTPUT;
3420           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3421           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3422           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3423           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3424           attributes.x = x;
3425           attributes.y = y;
3426           attributes.width = width;
3427           attributes.height = height;
3428           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3429                                                                    &attributes, attributes_mask);
3430           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3431
3432           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3433           gc = gdk_gc_new (mask);
3434           col.pixel = 1;
3435           gdk_gc_set_foreground (gc, &col);
3436           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3437
3438           /* Draw the 2 arrows as per above */
3439           col.pixel = 0;
3440           gdk_gc_set_foreground (gc, &col);
3441           for (i = 0; i < width; i ++)
3442             {
3443               if (i == (width/2 - 1))
3444                 continue;
3445               gdk_draw_line (mask, gc, i, j, i, height - j);
3446               if (i < (width/2 - 1))
3447                 j++;
3448               else
3449                 j--;
3450             }
3451           g_object_unref (gc);
3452           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3453                                          mask, 0, 0);
3454           if (mask) g_object_unref (mask);
3455         }
3456
3457       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3458       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3459     }
3460   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3461            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3462     {
3463       gint i, j = 1;
3464       GdkGC *gc;
3465       GdkColor col;
3466
3467       width = tree_view->priv->expander_size;
3468
3469       /* Get x, y, width, height of arrow */
3470       width = width/2; /* remember, the arrow only takes half the available width */
3471       gdk_window_get_origin (widget->window, &x, &y);
3472       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3473         x += widget->allocation.width - width;
3474
3475       if (reorder->left_column)
3476         height = reorder->left_column->button->allocation.height;
3477       else
3478         height = reorder->right_column->button->allocation.height;
3479
3480       y -= tree_view->priv->expander_size;
3481       height += 2*tree_view->priv->expander_size;
3482
3483       /* Create the new window */
3484       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3485           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3486         {
3487           if (tree_view->priv->drag_highlight_window)
3488             {
3489               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3490                                         NULL);
3491               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3492             }
3493
3494           attributes.window_type = GDK_WINDOW_TEMP;
3495           attributes.wclass = GDK_INPUT_OUTPUT;
3496           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3497           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3498           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3499           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3500           attributes.x = x;
3501           attributes.y = y;
3502           attributes.width = width;
3503           attributes.height = height;
3504           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3505           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3506
3507           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3508           gc = gdk_gc_new (mask);
3509           col.pixel = 1;
3510           gdk_gc_set_foreground (gc, &col);
3511           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3512
3513           /* Draw the 2 arrows as per above */
3514           col.pixel = 0;
3515           gdk_gc_set_foreground (gc, &col);
3516           j = tree_view->priv->expander_size;
3517           for (i = 0; i < width; i ++)
3518             {
3519               gint k;
3520               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3521                 k = width - i - 1;
3522               else
3523                 k = i;
3524               gdk_draw_line (mask, gc, k, j, k, height - j);
3525               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3526               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3527               j--;
3528             }
3529           g_object_unref (gc);
3530           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3531                                          mask, 0, 0);
3532           if (mask) g_object_unref (mask);
3533         }
3534
3535       tree_view->priv->drag_column_window_state = arrow_type;
3536       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3537    }
3538   else
3539     {
3540       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3541       gdk_window_hide (tree_view->priv->drag_highlight_window);
3542       return;
3543     }
3544
3545   gdk_window_show (tree_view->priv->drag_highlight_window);
3546   gdk_window_raise (tree_view->priv->drag_highlight_window);
3547 }
3548
3549 static gboolean
3550 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3551                                     GdkEventMotion *event)
3552 {
3553   gint x;
3554   gint new_width;
3555   GtkTreeViewColumn *column;
3556   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3557
3558   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3559
3560   if (event->is_hint || event->window != widget->window)
3561     gtk_widget_get_pointer (widget, &x, NULL);
3562   else
3563     x = event->x;
3564
3565   if (tree_view->priv->hadjustment)
3566     x += tree_view->priv->hadjustment->value;
3567
3568   new_width = gtk_tree_view_new_column_width (tree_view,
3569                                               tree_view->priv->drag_pos, &x);
3570   if (x != tree_view->priv->x_drag &&
3571       (new_width != column->fixed_width))
3572     {
3573       column->use_resized_width = TRUE;
3574       column->resized_width = new_width;
3575       if (column->expand)
3576         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3577       gtk_widget_queue_resize (widget);
3578     }
3579
3580   return FALSE;
3581 }
3582
3583
3584 static void
3585 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3586 {
3587   GtkTreeViewColumnReorder *reorder = NULL;
3588   GList *list;
3589   gint mouse_x;
3590
3591   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3592   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3593     {
3594       reorder = (GtkTreeViewColumnReorder *) list->data;
3595       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3596         break;
3597       reorder = NULL;
3598     }
3599
3600   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3601       return;*/
3602
3603   tree_view->priv->cur_reorder = reorder;
3604   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3605 }
3606
3607 static void
3608 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3609 {
3610   GdkRectangle visible_rect;
3611   gint y;
3612   gint offset;
3613   gfloat value;
3614
3615   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3616   y += tree_view->priv->dy;
3617
3618   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3619
3620   /* see if we are near the edge. */
3621   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3622   if (offset > 0)
3623     {
3624       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3625       if (offset < 0)
3626         return;
3627     }
3628
3629   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3630                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3631   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3632 }
3633
3634 static gboolean
3635 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3636 {
3637   GdkRectangle visible_rect;
3638   gint x;
3639   gint offset;
3640   gfloat value;
3641
3642   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3643
3644   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3645
3646   /* See if we are near the edge. */
3647   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3648   if (offset > 0)
3649     {
3650       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3651       if (offset < 0)
3652         return TRUE;
3653     }
3654   offset = offset/3;
3655
3656   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3657                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3658   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3659
3660   return TRUE;
3661
3662 }
3663
3664 static gboolean
3665 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3666                                   GdkEventMotion *event)
3667 {
3668   GtkTreeView *tree_view = (GtkTreeView *) widget;
3669   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3670   gint x, y;
3671
3672   /* Sanity Check */
3673   if ((column == NULL) ||
3674       (event->window != tree_view->priv->drag_window))
3675     return FALSE;
3676
3677   /* Handle moving the header */
3678   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3679   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3680              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3681   gdk_window_move (tree_view->priv->drag_window, x, y);
3682
3683   /* autoscroll, if needed */
3684   gtk_tree_view_horizontal_autoscroll (tree_view);
3685   /* Update the current reorder position and arrow; */
3686   gtk_tree_view_update_current_reorder (tree_view);
3687
3688   return TRUE;
3689 }
3690
3691 static void
3692 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3693 {
3694   remove_scroll_timeout (tree_view);
3695   gtk_grab_remove (GTK_WIDGET (tree_view));
3696
3697   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3698     {
3699       GtkTreePath *tmp_path;
3700
3701       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3702
3703       /* The anchor path should be set to the start path */
3704       tmp_path = _gtk_tree_view_find_path (tree_view,
3705                                            tree_view->priv->rubber_band_start_tree,
3706                                            tree_view->priv->rubber_band_start_node);
3707
3708       if (tree_view->priv->anchor)
3709         gtk_tree_row_reference_free (tree_view->priv->anchor);
3710
3711       tree_view->priv->anchor =
3712         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3713                                           tree_view->priv->model,
3714                                           tmp_path);
3715
3716       gtk_tree_path_free (tmp_path);
3717
3718       /* ... and the cursor to the end path */
3719       tmp_path = _gtk_tree_view_find_path (tree_view,
3720                                            tree_view->priv->rubber_band_end_tree,
3721                                            tree_view->priv->rubber_band_end_node);
3722       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3723       gtk_tree_path_free (tmp_path);
3724
3725       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3726     }
3727
3728   /* Clear status variables */
3729   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3730   tree_view->priv->rubber_band_shift = 0;
3731   tree_view->priv->rubber_band_ctrl = 0;
3732
3733   tree_view->priv->rubber_band_start_node = NULL;
3734   tree_view->priv->rubber_band_start_tree = NULL;
3735   tree_view->priv->rubber_band_end_node = NULL;
3736   tree_view->priv->rubber_band_end_tree = NULL;
3737 }
3738
3739 static void
3740 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3741                                                  GtkRBTree   *start_tree,
3742                                                  GtkRBNode   *start_node,
3743                                                  GtkRBTree   *end_tree,
3744                                                  GtkRBNode   *end_node,
3745                                                  gboolean     select,
3746                                                  gboolean     skip_start,
3747                                                  gboolean     skip_end)
3748 {
3749   if (start_node == end_node)
3750     return;
3751
3752   /* We skip the first node and jump inside the loop */
3753   if (skip_start)
3754     goto skip_first;
3755
3756   do
3757     {
3758       /* Small optimization by assuming insensitive nodes are never
3759        * selected.
3760        */
3761       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3762         {
3763           GtkTreePath *path;
3764           gboolean selectable;
3765
3766           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3767           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3768           gtk_tree_path_free (path);
3769
3770           if (!selectable)
3771             goto node_not_selectable;
3772         }
3773
3774       if (select)
3775         {
3776           if (tree_view->priv->rubber_band_shift)
3777             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3778           else if (tree_view->priv->rubber_band_ctrl)
3779             {
3780               /* Toggle the selection state */
3781               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3782                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3783               else
3784                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3785             }
3786           else
3787             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3788         }
3789       else
3790         {
3791           /* Mirror the above */
3792           if (tree_view->priv->rubber_band_shift)
3793             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3794           else if (tree_view->priv->rubber_band_ctrl)
3795             {
3796               /* Toggle the selection state */
3797               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3798                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3799               else
3800                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3801             }
3802           else
3803             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3804         }
3805
3806       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3807
3808 node_not_selectable:
3809       if (start_node == end_node)
3810         break;
3811
3812 skip_first:
3813
3814       if (start_node->children)
3815         {
3816           start_tree = start_node->children;
3817           start_node = start_tree->root;
3818           while (start_node->left != start_tree->nil)
3819             start_node = start_node->left;
3820         }
3821       else
3822         {
3823           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3824
3825           if (!start_tree)
3826             /* Ran out of tree */
3827             break;
3828         }
3829
3830       if (skip_end && start_node == end_node)
3831         break;
3832     }
3833   while (TRUE);
3834 }
3835
3836 static void
3837 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3838 {
3839   GtkRBTree *start_tree, *end_tree;
3840   GtkRBNode *start_node, *end_node;
3841
3842   _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);
3843   _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);
3844
3845   /* Handle the start area first */
3846   if (!tree_view->priv->rubber_band_start_node)
3847     {
3848       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3849                                                        start_tree,
3850                                                        start_node,
3851                                                        end_tree,
3852                                                        end_node,
3853                                                        TRUE,
3854                                                        FALSE,
3855                                                        FALSE);
3856     }
3857   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3858            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3859     {
3860       /* New node is above the old one; selection became bigger */
3861       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3862                                                        start_tree,
3863                                                        start_node,
3864                                                        tree_view->priv->rubber_band_start_tree,
3865                                                        tree_view->priv->rubber_band_start_node,
3866                                                        TRUE,
3867                                                        FALSE,
3868                                                        TRUE);
3869     }
3870   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3871            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3872     {
3873       /* New node is below the old one; selection became smaller */
3874       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3875                                                        tree_view->priv->rubber_band_start_tree,
3876                                                        tree_view->priv->rubber_band_start_node,
3877                                                        start_tree,
3878                                                        start_node,
3879                                                        FALSE,
3880                                                        FALSE,
3881                                                        TRUE);
3882     }
3883
3884   tree_view->priv->rubber_band_start_tree = start_tree;
3885   tree_view->priv->rubber_band_start_node = start_node;
3886
3887   /* Next, handle the end area */
3888   if (!tree_view->priv->rubber_band_end_node)
3889     {
3890       /* In the event this happens, start_node was also NULL; this case is
3891        * handled above.
3892        */
3893     }
3894   else if (!end_node)
3895     {
3896       /* Find the last node in the tree */
3897       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3898                                &end_tree, &end_node);
3899
3900       /* Selection reached end of the tree */
3901       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3902                                                        tree_view->priv->rubber_band_end_tree,
3903                                                        tree_view->priv->rubber_band_end_node,
3904                                                        end_tree,
3905                                                        end_node,
3906                                                        TRUE,
3907                                                        TRUE,
3908                                                        FALSE);
3909     }
3910   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3911            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3912     {
3913       /* New node is below the old one; selection became bigger */
3914       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3915                                                        tree_view->priv->rubber_band_end_tree,
3916                                                        tree_view->priv->rubber_band_end_node,
3917                                                        end_tree,
3918                                                        end_node,
3919                                                        TRUE,
3920                                                        TRUE,
3921                                                        FALSE);
3922     }
3923   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3924            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3925     {
3926       /* New node is above the old one; selection became smaller */
3927       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3928                                                        end_tree,
3929                                                        end_node,
3930                                                        tree_view->priv->rubber_band_end_tree,
3931                                                        tree_view->priv->rubber_band_end_node,
3932                                                        FALSE,
3933                                                        TRUE,
3934                                                        FALSE);
3935     }
3936
3937   tree_view->priv->rubber_band_end_tree = end_tree;
3938   tree_view->priv->rubber_band_end_node = end_node;
3939 }
3940
3941 static void
3942 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3943 {
3944   gint x, y;
3945   GdkRectangle old_area;
3946   GdkRectangle new_area;
3947   GdkRectangle common;
3948   GdkRegion *invalid_region;
3949
3950   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3951   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3952   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3953   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3954
3955   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3956
3957   x = MAX (x, 0);
3958   y = MAX (y, 0) + tree_view->priv->dy;
3959
3960   new_area.x = MIN (tree_view->priv->press_start_x, x);
3961   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3962   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3963   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3964
3965   invalid_region = gdk_region_rectangle (&old_area);
3966   gdk_region_union_with_rect (invalid_region, &new_area);
3967
3968   gdk_rectangle_intersect (&old_area, &new_area, &common);
3969   if (common.width > 2 && common.height > 2)
3970     {
3971       GdkRegion *common_region;
3972
3973       /* make sure the border is invalidated */
3974       common.x += 1;
3975       common.y += 1;
3976       common.width -= 2;
3977       common.height -= 2;
3978
3979       common_region = gdk_region_rectangle (&common);
3980
3981       gdk_region_subtract (invalid_region, common_region);
3982       gdk_region_destroy (common_region);
3983     }
3984
3985   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3986
3987   gdk_region_destroy (invalid_region);
3988
3989   tree_view->priv->rubber_band_x = x;
3990   tree_view->priv->rubber_band_y = y;
3991
3992   gtk_tree_view_update_rubber_band_selection (tree_view);
3993 }
3994
3995 static void
3996 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
3997                                 GdkRectangle *area)
3998 {
3999   cairo_t *cr;
4000   GdkRectangle rect;
4001   GdkRectangle rubber_rect;
4002
4003   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4004   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4005   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4006   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4007
4008   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4009     return;
4010
4011   cr = gdk_cairo_create (tree_view->priv->bin_window);
4012   cairo_set_line_width (cr, 1.0);
4013
4014   cairo_set_source_rgba (cr,
4015                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4016                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4017                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4018                          .25);
4019
4020   gdk_cairo_rectangle (cr, &rect);
4021   cairo_clip (cr);
4022   cairo_paint (cr);
4023
4024   cairo_set_source_rgb (cr,
4025                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4026                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4027                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4028
4029   cairo_rectangle (cr,
4030                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4031                    rubber_rect.width - 1, rubber_rect.height - 1);
4032   cairo_stroke (cr);
4033
4034   cairo_destroy (cr);
4035 }
4036
4037 static gboolean
4038 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4039                                  GdkEventMotion *event)
4040 {
4041   GtkTreeView *tree_view;
4042   GtkRBTree *tree;
4043   GtkRBNode *node;
4044   gint new_y;
4045
4046   tree_view = (GtkTreeView *) widget;
4047
4048   if (tree_view->priv->tree == NULL)
4049     return FALSE;
4050
4051   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4052     {
4053       gtk_grab_add (GTK_WIDGET (tree_view));
4054       gtk_tree_view_update_rubber_band (tree_view);
4055
4056       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4057     }
4058   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4059     {
4060       gtk_tree_view_update_rubber_band (tree_view);
4061
4062       add_scroll_timeout (tree_view);
4063     }
4064
4065   /* only check for an initiated drag when a button is pressed */
4066   if (tree_view->priv->pressed_button >= 0
4067       && !tree_view->priv->rubber_band_status)
4068     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4069
4070   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4071   if (new_y < 0)
4072     new_y = 0;
4073
4074   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4075
4076   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4077   if ((tree_view->priv->button_pressed_node != NULL) &&
4078       (tree_view->priv->button_pressed_node != node))
4079     node = NULL;
4080
4081   prelight_or_select (tree_view, tree, node, event->x, event->y);
4082
4083   return TRUE;
4084 }
4085
4086 static gboolean
4087 gtk_tree_view_motion (GtkWidget      *widget,
4088                       GdkEventMotion *event)
4089 {
4090   GtkTreeView *tree_view;
4091
4092   tree_view = (GtkTreeView *) widget;
4093
4094   /* Resizing a column */
4095   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4096     return gtk_tree_view_motion_resize_column (widget, event);
4097
4098   /* Drag column */
4099   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4100     return gtk_tree_view_motion_drag_column (widget, event);
4101
4102   /* Sanity check it */
4103   if (event->window == tree_view->priv->bin_window)
4104     return gtk_tree_view_motion_bin_window (widget, event);
4105
4106   return FALSE;
4107 }
4108
4109 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4110  * the tree is empty.
4111  */
4112 static void
4113 invalidate_empty_focus (GtkTreeView *tree_view)
4114 {
4115   GdkRectangle area;
4116
4117   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4118     return;
4119
4120   area.x = 0;
4121   area.y = 0;
4122   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4123   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4124 }
4125
4126 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4127  * is empty.
4128  */
4129 static void
4130 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4131 {
4132   gint w, h;
4133
4134   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4135     return;
4136
4137   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4138
4139   w -= 2;
4140   h -= 2;
4141
4142   if (w > 0 && h > 0)
4143     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4144                      tree_view->priv->bin_window,
4145                      GTK_WIDGET_STATE (tree_view),
4146                      clip_area,
4147                      GTK_WIDGET (tree_view),
4148                      NULL,
4149                      1, 1, w, h);
4150 }
4151
4152 static void
4153 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4154                                GdkEventExpose *event,
4155                                gint            n_visible_columns)
4156 {
4157   GList *list = tree_view->priv->columns;
4158   gint i = 0;
4159   gint current_x = 0;
4160
4161   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4162       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4163     return;
4164
4165   /* Only draw the lines for visible rows and columns */
4166   for (list = tree_view->priv->columns; list; list = list->next, i++)
4167     {
4168       GtkTreeViewColumn *column = list->data;
4169
4170       /* We don't want a line for the last column */
4171       if (i == n_visible_columns - 1)
4172         break;
4173
4174       if (! column->visible)
4175         continue;
4176
4177       current_x += column->width;
4178
4179       gdk_draw_line (event->window,
4180                      tree_view->priv->grid_line_gc,
4181                      current_x - 1, 0,
4182                      current_x - 1, tree_view->priv->height);
4183     }
4184 }
4185
4186 /* Warning: Very scary function.
4187  * Modify at your own risk
4188  *
4189  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4190  * FIXME: It's not...
4191  */
4192 static gboolean
4193 gtk_tree_view_bin_expose (GtkWidget      *widget,
4194                           GdkEventExpose *event)
4195 {
4196   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4197   GtkTreePath *path;
4198   GtkRBTree *tree;
4199   GList *list;
4200   GtkRBNode *node;
4201   GtkRBNode *cursor = NULL;
4202   GtkRBTree *cursor_tree = NULL;
4203   GtkRBNode *drag_highlight = NULL;
4204   GtkRBTree *drag_highlight_tree = NULL;
4205   GtkTreeIter iter;
4206   gint new_y;
4207   gint y_offset, cell_offset;
4208   gint max_height;
4209   gint depth;
4210   GdkRectangle background_area;
4211   GdkRectangle cell_area;
4212   guint flags;
4213   gint highlight_x;
4214   gint expander_cell_width;
4215   gint bin_window_width;
4216   gint bin_window_height;
4217   GtkTreePath *cursor_path;
4218   GtkTreePath *drag_dest_path;
4219   GList *first_column, *last_column;
4220   gint vertical_separator;
4221   gint horizontal_separator;
4222   gint focus_line_width;
4223   gboolean allow_rules;
4224   gboolean has_special_cell;
4225   gboolean rtl;
4226   gint n_visible_columns;
4227   gint pointer_x, pointer_y;
4228   gint grid_line_width;
4229   gboolean got_pointer = FALSE;
4230   gboolean row_ending_details;
4231   gboolean draw_vgrid_lines, draw_hgrid_lines;
4232
4233   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4234
4235   gtk_widget_style_get (widget,
4236                         "horizontal-separator", &horizontal_separator,
4237                         "vertical-separator", &vertical_separator,
4238                         "allow-rules", &allow_rules,
4239                         "focus-line-width", &focus_line_width,
4240                         "row-ending-details", &row_ending_details,
4241                         NULL);
4242
4243   if (tree_view->priv->tree == NULL)
4244     {
4245       draw_empty_focus (tree_view, &event->area);
4246       return TRUE;
4247     }
4248
4249   /* clip event->area to the visible area */
4250   if (event->area.height < 0)
4251     return TRUE;
4252
4253   validate_visible_area (tree_view);
4254
4255   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4256
4257   if (new_y < 0)
4258     new_y = 0;
4259   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4260   gdk_drawable_get_size (tree_view->priv->bin_window,
4261                          &bin_window_width, &bin_window_height);
4262
4263   if (tree_view->priv->height < bin_window_height)
4264     {
4265       gtk_paint_flat_box (widget->style,
4266                           event->window,
4267                           widget->state,
4268                           GTK_SHADOW_NONE,
4269                           &event->area,
4270                           widget,
4271                           "cell_even",
4272                           0, tree_view->priv->height,
4273                           bin_window_width,
4274                           bin_window_height - tree_view->priv->height);
4275     }
4276
4277   if (node == NULL)
4278     return TRUE;
4279
4280   /* find the path for the node */
4281   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4282                                    tree,
4283                                    node);
4284   gtk_tree_model_get_iter (tree_view->priv->model,
4285                            &iter,
4286                            path);
4287   depth = gtk_tree_path_get_depth (path);
4288   gtk_tree_path_free (path);
4289
4290   cursor_path = NULL;
4291   drag_dest_path = NULL;
4292
4293   if (tree_view->priv->cursor)
4294     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4295
4296   if (cursor_path)
4297     _gtk_tree_view_find_node (tree_view, cursor_path,
4298                               &cursor_tree, &cursor);
4299
4300   if (tree_view->priv->drag_dest_row)
4301     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4302
4303   if (drag_dest_path)
4304     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4305                               &drag_highlight_tree, &drag_highlight);
4306
4307   draw_vgrid_lines =
4308     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4309     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4310   draw_hgrid_lines =
4311     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4312     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4313
4314   if (draw_vgrid_lines || draw_hgrid_lines)
4315     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4316
4317   n_visible_columns = 0;
4318   for (list = tree_view->priv->columns; list; list = list->next)
4319     {
4320       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4321         continue;
4322       n_visible_columns ++;
4323     }
4324
4325   /* Find the last column */
4326   for (last_column = g_list_last (tree_view->priv->columns);
4327        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4328        last_column = last_column->prev)
4329     ;
4330
4331   /* and the first */
4332   for (first_column = g_list_first (tree_view->priv->columns);
4333        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4334        first_column = first_column->next)
4335     ;
4336
4337   /* Actually process the expose event.  To do this, we want to
4338    * start at the first node of the event, and walk the tree in
4339    * order, drawing each successive node.
4340    */
4341
4342   do
4343     {
4344       gboolean parity;
4345       gboolean is_separator = FALSE;
4346       gboolean is_first = FALSE;
4347       gboolean is_last = FALSE;
4348
4349       is_separator = row_is_separator (tree_view, &iter, NULL);
4350
4351       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4352
4353       cell_offset = 0;
4354       highlight_x = 0; /* should match x coord of first cell */
4355       expander_cell_width = 0;
4356
4357       background_area.y = y_offset + event->area.y;
4358       background_area.height = max_height;
4359
4360       flags = 0;
4361
4362       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4363         flags |= GTK_CELL_RENDERER_PRELIT;
4364
4365       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4366         flags |= GTK_CELL_RENDERER_SELECTED;
4367
4368       parity = _gtk_rbtree_node_find_parity (tree, node);
4369
4370       /* we *need* to set cell data on all cells before the call
4371        * to _has_special_cell, else _has_special_cell() does not
4372        * return a correct value.
4373        */
4374       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4375            list;
4376            list = (rtl ? list->prev : list->next))
4377         {
4378           GtkTreeViewColumn *column = list->data;
4379           gtk_tree_view_column_cell_set_cell_data (column,
4380                                                    tree_view->priv->model,
4381                                                    &iter,
4382                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4383                                                    node->children?TRUE:FALSE);
4384         }
4385
4386       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4387
4388       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4389            list;
4390            list = (rtl ? list->prev : list->next))
4391         {
4392           GtkTreeViewColumn *column = list->data;
4393           const gchar *detail = NULL;
4394           GtkStateType state;
4395
4396           if (!column->visible)
4397             continue;
4398
4399           if (cell_offset > event->area.x + event->area.width ||
4400               cell_offset + column->width < event->area.x)
4401             {
4402               cell_offset += column->width;
4403               continue;
4404             }
4405
4406           if (column->show_sort_indicator)
4407             flags |= GTK_CELL_RENDERER_SORTED;
4408           else
4409             flags &= ~GTK_CELL_RENDERER_SORTED;
4410
4411           if (cursor == node)
4412             flags |= GTK_CELL_RENDERER_FOCUSED;
4413           else
4414             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4415
4416           background_area.x = cell_offset;
4417           background_area.width = column->width;
4418
4419           cell_area = background_area;
4420           cell_area.y += vertical_separator / 2;
4421           cell_area.x += horizontal_separator / 2;
4422           cell_area.height -= vertical_separator;
4423           cell_area.width -= horizontal_separator;
4424
4425           if (draw_vgrid_lines)
4426             {
4427               if (list == first_column)
4428                 {
4429                   cell_area.width -= grid_line_width / 2;
4430                 }
4431               else if (list == last_column)
4432                 {
4433                   cell_area.x += grid_line_width / 2;
4434                   cell_area.width -= grid_line_width / 2;
4435                 }
4436               else
4437                 {
4438                   cell_area.x += grid_line_width / 2;
4439                   cell_area.width -= grid_line_width;
4440                 }
4441             }
4442
4443           if (draw_hgrid_lines)
4444             {
4445               cell_area.y += grid_line_width / 2;
4446               cell_area.height -= grid_line_width;
4447             }
4448
4449           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4450             {
4451               cell_offset += column->width;
4452               continue;
4453             }
4454
4455           gtk_tree_view_column_cell_set_cell_data (column,
4456                                                    tree_view->priv->model,
4457                                                    &iter,
4458                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4459                                                    node->children?TRUE:FALSE);
4460
4461           /* Select the detail for drawing the cell.  relevant
4462            * factors are parity, sortedness, and whether to
4463            * display rules.
4464            */
4465           if (allow_rules && tree_view->priv->has_rules)
4466             {
4467               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4468                   n_visible_columns >= 3)
4469                 {
4470                   if (parity)
4471                     detail = "cell_odd_ruled_sorted";
4472                   else
4473                     detail = "cell_even_ruled_sorted";
4474                 }
4475               else
4476                 {
4477                   if (parity)
4478                     detail = "cell_odd_ruled";
4479                   else
4480                     detail = "cell_even_ruled";
4481                 }
4482             }
4483           else
4484             {
4485               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4486                   n_visible_columns >= 3)
4487                 {
4488                   if (parity)
4489                     detail = "cell_odd_sorted";
4490                   else
4491                     detail = "cell_even_sorted";
4492                 }
4493               else
4494                 {
4495                   if (parity)
4496                     detail = "cell_odd";
4497                   else
4498                     detail = "cell_even";
4499                 }
4500             }
4501
4502           g_assert (detail);
4503
4504           if (widget->state == GTK_STATE_INSENSITIVE)
4505             state = GTK_STATE_INSENSITIVE;
4506           else if (flags & GTK_CELL_RENDERER_SELECTED)
4507             state = GTK_STATE_SELECTED;
4508           else
4509             state = GTK_STATE_NORMAL;
4510
4511           /* Draw background */
4512           if (row_ending_details)
4513             {
4514               char new_detail[128];
4515
4516               is_first = (rtl ? !list->next : !list->prev);
4517               is_last = (rtl ? !list->prev : !list->next);
4518
4519               /* (I don't like the snprintfs either, but couldn't find a
4520                * less messy way).
4521                */
4522               if (is_first && is_last)
4523                 g_snprintf (new_detail, 127, "%s", detail);
4524               else if (is_first)
4525                 g_snprintf (new_detail, 127, "%s_start", detail);
4526               else if (is_last)
4527                 g_snprintf (new_detail, 127, "%s_end", detail);
4528               else
4529                 g_snprintf (new_detail, 128, "%s_middle", detail);
4530
4531               gtk_paint_flat_box (widget->style,
4532                                   event->window,
4533                                   state,
4534                                   GTK_SHADOW_NONE,
4535                                   &event->area,
4536                                   widget,
4537                                   new_detail,
4538                                   background_area.x,
4539                                   background_area.y,
4540                                   background_area.width,
4541                                   background_area.height);
4542             }
4543           else
4544             {
4545               gtk_paint_flat_box (widget->style,
4546                                   event->window,
4547                                   state,
4548                                   GTK_SHADOW_NONE,
4549                                   &event->area,
4550                                   widget,
4551                                   detail,
4552                                   background_area.x,
4553                                   background_area.y,
4554                                   background_area.width,
4555                                   background_area.height);
4556             }
4557
4558           if (draw_hgrid_lines)
4559             {
4560               if (background_area.y > 0)
4561                 gdk_draw_line (event->window,
4562                                tree_view->priv->grid_line_gc,
4563                                background_area.x, background_area.y,
4564                                background_area.x + background_area.width,
4565                                background_area.y);
4566
4567               if (y_offset + max_height >= event->area.height)
4568                 gdk_draw_line (event->window,
4569                                tree_view->priv->grid_line_gc,
4570                                background_area.x, background_area.y + max_height,
4571                                background_area.x + background_area.width,
4572                                background_area.y + max_height);
4573             }
4574
4575           if (gtk_tree_view_is_expander_column (tree_view, column))
4576             {
4577               if (!rtl)
4578                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4579               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4580
4581               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4582                 {
4583                   if (!rtl)
4584                     cell_area.x += depth * tree_view->priv->expander_size;
4585                   cell_area.width -= depth * tree_view->priv->expander_size;
4586                 }
4587
4588               /* If we have an expander column, the highlight underline
4589                * starts with that column, so that it indicates which
4590                * level of the tree we're dropping at.
4591                */
4592               highlight_x = cell_area.x;
4593               expander_cell_width = cell_area.width;
4594
4595               if (is_separator)
4596                 gtk_paint_hline (widget->style,
4597                                  event->window,
4598                                  state,
4599                                  &cell_area,
4600                                  widget,
4601                                  NULL,
4602                                  cell_area.x,
4603                                  cell_area.x + cell_area.width,
4604                                  cell_area.y + cell_area.height / 2);
4605               else
4606                 _gtk_tree_view_column_cell_render (column,
4607                                                    event->window,
4608                                                    &background_area,
4609                                                    &cell_area,
4610                                                    &event->area,
4611                                                    flags);
4612               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4613                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4614                 {
4615                   if (!got_pointer)
4616                     {
4617                       gdk_window_get_pointer (tree_view->priv->bin_window,
4618                                               &pointer_x, &pointer_y, NULL);
4619                       got_pointer = TRUE;
4620                     }
4621
4622                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4623                                             tree,
4624                                             node,
4625                                             pointer_x, pointer_y);
4626                 }
4627             }
4628           else
4629             {
4630               if (is_separator)
4631                 gtk_paint_hline (widget->style,
4632                                  event->window,
4633                                  state,
4634                                  &cell_area,
4635                                  widget,
4636                                  NULL,
4637                                  cell_area.x,
4638                                  cell_area.x + cell_area.width,
4639                                  cell_area.y + cell_area.height / 2);
4640               else
4641                 _gtk_tree_view_column_cell_render (column,
4642                                                    event->window,
4643                                                    &background_area,
4644                                                    &cell_area,
4645                                                    &event->area,
4646                                                    flags);
4647             }
4648
4649           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4650               tree_view->priv->tree_lines_enabled)
4651             {
4652               gint x = background_area.x;
4653               gint mult = rtl ? -1 : 1;
4654               gint y0 = background_area.y;
4655               gint y1 = background_area.y + background_area.height/2;
4656               gint y2 = background_area.y + background_area.height;
4657
4658               if (rtl)
4659                 x += background_area.width - 1;
4660
4661               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4662                   && depth > 1)
4663                 {
4664                   gdk_draw_line (event->window,
4665                                  tree_view->priv->tree_line_gc,
4666                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4667                                  y1,
4668                                  x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4669                                  y1);
4670                 }
4671               else if (depth > 1)
4672                 {
4673                   gdk_draw_line (event->window,
4674                                  tree_view->priv->tree_line_gc,
4675                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4676                                  y1,
4677                                  x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4678                                  y1);
4679                 }
4680
4681               if (depth > 1)
4682                 {
4683                   gint i;
4684                   GtkRBNode *tmp_node;
4685                   GtkRBTree *tmp_tree;
4686
4687                   if (!_gtk_rbtree_next (tree, node))
4688                     gdk_draw_line (event->window,
4689                                    tree_view->priv->tree_line_gc,
4690                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4691                                    y0,
4692                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4693                                    y1);
4694                   else
4695                     gdk_draw_line (event->window,
4696                                    tree_view->priv->tree_line_gc,
4697                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4698                                    y0,
4699                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4700                                    y2);
4701
4702                   tmp_node = tree->parent_node;
4703                   tmp_tree = tree->parent_tree;
4704
4705                   for (i = depth - 2; i > 0; i--)
4706                     {
4707                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4708                         gdk_draw_line (event->window,
4709                                        tree_view->priv->tree_line_gc,
4710                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4711                                        y0,
4712                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4713                                        y2);
4714
4715                       tmp_node = tmp_tree->parent_node;
4716                       tmp_tree = tmp_tree->parent_tree;
4717                     }
4718                 }
4719             }
4720
4721           if (node == cursor && has_special_cell &&
4722               ((column == tree_view->priv->focus_column &&
4723                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4724                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4725                (column == tree_view->priv->edited_column)))
4726             {
4727               _gtk_tree_view_column_cell_draw_focus (column,
4728                                                      event->window,
4729                                                      &background_area,
4730                                                      &cell_area,
4731                                                      &event->area,
4732                                                      flags);
4733             }
4734
4735           cell_offset += column->width;
4736         }
4737
4738       if (node == drag_highlight)
4739         {
4740           /* Draw indicator for the drop
4741            */
4742           gint highlight_y = -1;
4743           GtkRBTree *tree = NULL;
4744           GtkRBNode *node = NULL;
4745           gint width;
4746
4747           switch (tree_view->priv->drag_dest_pos)
4748             {
4749             case GTK_TREE_VIEW_DROP_BEFORE:
4750               highlight_y = background_area.y - 1;
4751               if (highlight_y < 0)
4752                       highlight_y = 0;
4753               break;
4754
4755             case GTK_TREE_VIEW_DROP_AFTER:
4756               highlight_y = background_area.y + background_area.height - 1;
4757               break;
4758
4759             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4760             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4761               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4762
4763               if (tree == NULL)
4764                 break;
4765               gdk_drawable_get_size (tree_view->priv->bin_window,
4766                                      &width, NULL);
4767
4768               if (row_ending_details)
4769                 gtk_paint_focus (widget->style,
4770                                  tree_view->priv->bin_window,
4771                                  GTK_WIDGET_STATE (widget),
4772                                  &event->area,
4773                                  widget,
4774                                  (is_first
4775                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4776                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4777                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4778                                  - focus_line_width / 2,
4779                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4780                                - focus_line_width + 1);
4781               else
4782                 gtk_paint_focus (widget->style,
4783                                  tree_view->priv->bin_window,
4784                                  GTK_WIDGET_STATE (widget),
4785                                  &event->area,
4786                                  widget,
4787                                  "treeview-drop-indicator",
4788                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4789                                  - focus_line_width / 2,
4790                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4791                                  - focus_line_width + 1);
4792               break;
4793             }
4794
4795           if (highlight_y >= 0)
4796             {
4797               gdk_draw_line (event->window,
4798                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4799                              rtl ? highlight_x + expander_cell_width : highlight_x,
4800                              highlight_y,
4801                              rtl ? 0 : bin_window_width,
4802                              highlight_y);
4803             }
4804         }
4805
4806       /* draw the big row-spanning focus rectangle, if needed */
4807       if (!has_special_cell && node == cursor &&
4808           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4809           GTK_WIDGET_HAS_FOCUS (widget))
4810         {
4811           gint tmp_y, tmp_height;
4812           gint width;
4813           GtkStateType focus_rect_state;
4814
4815           focus_rect_state =
4816             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4817             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4818              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4819               GTK_STATE_NORMAL));
4820
4821           gdk_drawable_get_size (tree_view->priv->bin_window,
4822                                  &width, NULL);
4823
4824           if (draw_hgrid_lines)
4825             {
4826               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4827               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4828             }
4829           else
4830             {
4831               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4832               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4833             }
4834
4835           if (row_ending_details)
4836             gtk_paint_focus (widget->style,
4837                              tree_view->priv->bin_window,
4838                              focus_rect_state,
4839                              &event->area,
4840                              widget,
4841                              (is_first
4842                               ? (is_last ? "treeview" : "treeview-left" )
4843                               : (is_last ? "treeview-right" : "treeview-middle" )),
4844                              0, tmp_y,
4845                              width, tmp_height);
4846           else
4847             gtk_paint_focus (widget->style,
4848                              tree_view->priv->bin_window,
4849                              focus_rect_state,
4850                              &event->area,
4851                              widget,
4852                              "treeview",
4853                              0, tmp_y,
4854                              width, tmp_height);
4855         }
4856
4857       y_offset += max_height;
4858       if (node->children)
4859         {
4860           GtkTreeIter parent = iter;
4861           gboolean has_child;
4862
4863           tree = node->children;
4864           node = tree->root;
4865
4866           g_assert (node != tree->nil);
4867
4868           while (node->left != tree->nil)
4869             node = node->left;
4870           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4871                                                     &iter,
4872                                                     &parent);
4873           depth++;
4874
4875           /* Sanity Check! */
4876           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4877         }
4878       else
4879         {
4880           gboolean done = FALSE;
4881
4882           do
4883             {
4884               node = _gtk_rbtree_next (tree, node);
4885               if (node != NULL)
4886                 {
4887                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4888                   done = TRUE;
4889
4890                   /* Sanity Check! */
4891                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4892                 }
4893               else
4894                 {
4895                   GtkTreeIter parent_iter = iter;
4896                   gboolean has_parent;
4897
4898                   node = tree->parent_node;
4899                   tree = tree->parent_tree;
4900                   if (tree == NULL)
4901                     /* we should go to done to free some memory */
4902                     goto done;
4903                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4904                                                            &iter,
4905                                                            &parent_iter);
4906                   depth--;
4907
4908                   /* Sanity check */
4909                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4910                 }
4911             }
4912           while (!done);
4913         }
4914     }
4915   while (y_offset < event->area.height);
4916
4917 done:
4918   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4919
4920  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4921    {
4922      GdkRectangle *rectangles;
4923      gint n_rectangles;
4924
4925      gdk_region_get_rectangles (event->region,
4926                                 &rectangles,
4927                                 &n_rectangles);
4928
4929      while (n_rectangles--)
4930        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4931
4932      g_free (rectangles);
4933    }
4934
4935   if (cursor_path)
4936     gtk_tree_path_free (cursor_path);
4937
4938   if (drag_dest_path)
4939     gtk_tree_path_free (drag_dest_path);
4940
4941   return FALSE;
4942 }
4943
4944 static gboolean
4945 gtk_tree_view_expose (GtkWidget      *widget,
4946                       GdkEventExpose *event)
4947 {
4948   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4949
4950   if (event->window == tree_view->priv->bin_window)
4951     {
4952       gboolean retval;
4953       GList *tmp_list;
4954
4955       retval = gtk_tree_view_bin_expose (widget, event);
4956
4957       /* We can't just chain up to Container::expose as it will try to send the
4958        * event to the headers, so we handle propagating it to our children
4959        * (eg. widgets being edited) ourselves.
4960        */
4961       tmp_list = tree_view->priv->children;
4962       while (tmp_list)
4963         {
4964           GtkTreeViewChild *child = tmp_list->data;
4965           tmp_list = tmp_list->next;
4966
4967           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4968         }
4969
4970       return retval;
4971     }
4972
4973   else if (event->window == tree_view->priv->header_window)
4974     {
4975       GList *list;
4976
4977       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4978         {
4979           GtkTreeViewColumn *column = list->data;
4980
4981           if (column == tree_view->priv->drag_column)
4982             continue;
4983
4984           if (column->visible)
4985             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4986                                             column->button,
4987                                             event);
4988         }
4989     }
4990   else if (event->window == tree_view->priv->drag_window)
4991     {
4992       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4993                                       tree_view->priv->drag_column->button,
4994                                       event);
4995     }
4996   return TRUE;
4997 }
4998
4999 enum
5000 {
5001   DROP_HOME,
5002   DROP_RIGHT,
5003   DROP_LEFT,
5004   DROP_END
5005 };
5006
5007 /* returns 0x1 when no column has been found -- yes it's hackish */
5008 static GtkTreeViewColumn *
5009 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5010                                GtkTreeViewColumn *column,
5011                                gint               drop_position)
5012 {
5013   GtkTreeViewColumn *left_column = NULL;
5014   GtkTreeViewColumn *cur_column = NULL;
5015   GList *tmp_list;
5016
5017   if (!column->reorderable)
5018     return (GtkTreeViewColumn *)0x1;
5019
5020   switch (drop_position)
5021     {
5022       case DROP_HOME:
5023         /* find first column where we can drop */
5024         tmp_list = tree_view->priv->columns;
5025         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5026           return (GtkTreeViewColumn *)0x1;
5027
5028         while (tmp_list)
5029           {
5030             g_assert (tmp_list);
5031
5032             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5033             tmp_list = tmp_list->next;
5034
5035             if (left_column && left_column->visible == FALSE)
5036               continue;
5037
5038             if (!tree_view->priv->column_drop_func)
5039               return left_column;
5040
5041             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5042               {
5043                 left_column = cur_column;
5044                 continue;
5045               }
5046
5047             return left_column;
5048           }
5049
5050         if (!tree_view->priv->column_drop_func)
5051           return left_column;
5052
5053         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5054           return left_column;
5055         else
5056           return (GtkTreeViewColumn *)0x1;
5057         break;
5058
5059       case DROP_RIGHT:
5060         /* find first column after column where we can drop */
5061         tmp_list = tree_view->priv->columns;
5062
5063         for (; tmp_list; tmp_list = tmp_list->next)
5064           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5065             break;
5066
5067         if (!tmp_list || !tmp_list->next)
5068           return (GtkTreeViewColumn *)0x1;
5069
5070         tmp_list = tmp_list->next;
5071         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5072         tmp_list = tmp_list->next;
5073
5074         while (tmp_list)
5075           {
5076             g_assert (tmp_list);
5077
5078             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5079             tmp_list = tmp_list->next;
5080
5081             if (left_column && left_column->visible == FALSE)
5082               {
5083                 left_column = cur_column;
5084                 if (tmp_list)
5085                   tmp_list = tmp_list->next;
5086                 continue;
5087               }
5088
5089             if (!tree_view->priv->column_drop_func)
5090               return left_column;
5091
5092             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5093               {
5094                 left_column = cur_column;
5095                 continue;
5096               }
5097
5098             return left_column;
5099           }
5100
5101         if (!tree_view->priv->column_drop_func)
5102           return left_column;
5103
5104         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5105           return left_column;
5106         else
5107           return (GtkTreeViewColumn *)0x1;
5108         break;
5109
5110       case DROP_LEFT:
5111         /* find first column before column where we can drop */
5112         tmp_list = tree_view->priv->columns;
5113
5114         for (; tmp_list; tmp_list = tmp_list->next)
5115           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5116             break;
5117
5118         if (!tmp_list || !tmp_list->prev)
5119           return (GtkTreeViewColumn *)0x1;
5120
5121         tmp_list = tmp_list->prev;
5122         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5123         tmp_list = tmp_list->prev;
5124
5125         while (tmp_list)
5126           {
5127             g_assert (tmp_list);
5128
5129             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5130
5131             if (left_column && !left_column->visible)
5132               {
5133                 /*if (!tmp_list->prev)
5134                   return (GtkTreeViewColumn *)0x1;
5135                   */
5136 /*
5137                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5138                 tmp_list = tmp_list->prev->prev;
5139                 continue;*/
5140
5141                 cur_column = left_column;
5142                 if (tmp_list)
5143                   tmp_list = tmp_list->prev;
5144                 continue;
5145               }
5146
5147             if (!tree_view->priv->column_drop_func)
5148               return left_column;
5149
5150             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5151               return left_column;
5152
5153             cur_column = left_column;
5154             tmp_list = tmp_list->prev;
5155           }
5156
5157         if (!tree_view->priv->column_drop_func)
5158           return NULL;
5159
5160         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5161           return NULL;
5162         else
5163           return (GtkTreeViewColumn *)0x1;
5164         break;
5165
5166       case DROP_END:
5167         /* same as DROP_HOME case, but doing it backwards */
5168         tmp_list = g_list_last (tree_view->priv->columns);
5169         cur_column = NULL;
5170
5171         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5172           return (GtkTreeViewColumn *)0x1;
5173
5174         while (tmp_list)
5175           {
5176             g_assert (tmp_list);
5177
5178             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5179
5180             if (left_column && !left_column->visible)
5181               {
5182                 cur_column = left_column;
5183                 tmp_list = tmp_list->prev;
5184               }
5185
5186             if (!tree_view->priv->column_drop_func)
5187               return left_column;
5188
5189             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5190               return left_column;
5191
5192             cur_column = left_column;
5193             tmp_list = tmp_list->prev;
5194           }
5195
5196         if (!tree_view->priv->column_drop_func)
5197           return NULL;
5198
5199         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5200           return NULL;
5201         else
5202           return (GtkTreeViewColumn *)0x1;
5203         break;
5204     }
5205
5206   return (GtkTreeViewColumn *)0x1;
5207 }
5208
5209 static gboolean
5210 gtk_tree_view_key_press (GtkWidget   *widget,
5211                          GdkEventKey *event)
5212 {
5213   GtkTreeView *tree_view = (GtkTreeView *) widget;
5214
5215   if (tree_view->priv->rubber_band_status)
5216     {
5217       if (event->keyval == GDK_Escape)
5218         gtk_tree_view_stop_rubber_band (tree_view);
5219
5220       return TRUE;
5221     }
5222
5223   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5224     {
5225       if (event->keyval == GDK_Escape)
5226         {
5227           tree_view->priv->cur_reorder = NULL;
5228           gtk_tree_view_button_release_drag_column (widget, NULL);
5229         }
5230       return TRUE;
5231     }
5232
5233   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5234     {
5235       GList *focus_column;
5236       gboolean rtl;
5237
5238       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5239
5240       for (focus_column = tree_view->priv->columns;
5241            focus_column;
5242            focus_column = focus_column->next)
5243         {
5244           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5245
5246           if (GTK_WIDGET_HAS_FOCUS (column->button))
5247             break;
5248         }
5249
5250       if (focus_column &&
5251           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5252           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5253            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5254         {
5255           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5256
5257           if (!column->resizable)
5258             {
5259               gtk_widget_error_bell (widget);
5260               return TRUE;
5261             }
5262
5263           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5264               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5265             {
5266               gint old_width = column->resized_width;
5267
5268               column->resized_width = MAX (column->resized_width,
5269                                            column->width);
5270               column->resized_width -= 2;
5271               if (column->resized_width < 0)
5272                 column->resized_width = 0;
5273
5274               if (column->min_width == -1)
5275                 column->resized_width = MAX (column->button->requisition.width,
5276                                              column->resized_width);
5277               else
5278                 column->resized_width = MAX (column->min_width,
5279                                              column->resized_width);
5280
5281               if (column->max_width != -1)
5282                 column->resized_width = MIN (column->resized_width,
5283                                              column->max_width);
5284
5285               column->use_resized_width = TRUE;
5286
5287               if (column->resized_width != old_width)
5288                 gtk_widget_queue_resize (widget);
5289               else
5290                 gtk_widget_error_bell (widget);
5291             }
5292           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5293                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5294             {
5295               gint old_width = column->resized_width;
5296
5297               column->resized_width = MAX (column->resized_width,
5298                                            column->width);
5299               column->resized_width += 2;
5300
5301               if (column->max_width != -1)
5302                 column->resized_width = MIN (column->resized_width,
5303                                              column->max_width);
5304
5305               column->use_resized_width = TRUE;
5306
5307               if (column->resized_width != old_width)
5308                 gtk_widget_queue_resize (widget);
5309               else
5310                 gtk_widget_error_bell (widget);
5311             }
5312
5313           return TRUE;
5314         }
5315
5316       if (focus_column &&
5317           (event->state & GDK_MOD1_MASK) &&
5318           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5319            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5320            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5321            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5322         {
5323           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5324
5325           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5326               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5327             {
5328               GtkTreeViewColumn *col;
5329               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5330               if (col != (GtkTreeViewColumn *)0x1)
5331                 gtk_tree_view_move_column_after (tree_view, column, col);
5332               else
5333                 gtk_widget_error_bell (widget);
5334             }
5335           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5336                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5337             {
5338               GtkTreeViewColumn *col;
5339               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5340               if (col != (GtkTreeViewColumn *)0x1)
5341                 gtk_tree_view_move_column_after (tree_view, column, col);
5342               else
5343                 gtk_widget_error_bell (widget);
5344             }
5345           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5346             {
5347               GtkTreeViewColumn *col;
5348               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5349               if (col != (GtkTreeViewColumn *)0x1)
5350                 gtk_tree_view_move_column_after (tree_view, column, col);
5351               else
5352                 gtk_widget_error_bell (widget);
5353             }
5354           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5355             {
5356               GtkTreeViewColumn *col;
5357               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5358               if (col != (GtkTreeViewColumn *)0x1)
5359                 gtk_tree_view_move_column_after (tree_view, column, col);
5360               else
5361                 gtk_widget_error_bell (widget);
5362             }
5363
5364           return TRUE;
5365         }
5366     }
5367
5368   /* Chain up to the parent class.  It handles the keybindings. */
5369   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5370     return TRUE;
5371
5372   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5373     {
5374       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5375       return FALSE;
5376     }
5377
5378   /* We pass the event to the search_entry.  If its text changes, then we start
5379    * the typeahead find capabilities. */
5380   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5381       && tree_view->priv->enable_search
5382       && !tree_view->priv->search_custom_entry_set)
5383     {
5384       GdkEvent *new_event;
5385       char *old_text;
5386       const char *new_text;
5387       gboolean retval;
5388       GdkScreen *screen;
5389       gboolean text_modified;
5390       gulong popup_menu_id;
5391
5392       gtk_tree_view_ensure_interactive_directory (tree_view);
5393
5394       /* Make a copy of the current text */
5395       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5396       new_event = gdk_event_copy ((GdkEvent *) event);
5397       g_object_unref (((GdkEventKey *) new_event)->window);
5398       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5399       gtk_widget_realize (tree_view->priv->search_window);
5400
5401       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5402                                         "popup-menu", G_CALLBACK (gtk_true),
5403                                         NULL);
5404
5405       /* Move the entry off screen */
5406       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5407       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5408                        gdk_screen_get_width (screen) + 1,
5409                        gdk_screen_get_height (screen) + 1);
5410       gtk_widget_show (tree_view->priv->search_window);
5411
5412       /* Send the event to the window.  If the preedit_changed signal is emitted
5413        * during this event, we will set priv->imcontext_changed  */
5414       tree_view->priv->imcontext_changed = FALSE;
5415       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5416       gdk_event_free (new_event);
5417       gtk_widget_hide (tree_view->priv->search_window);
5418
5419       g_signal_handler_disconnect (tree_view->priv->search_entry,
5420                                    popup_menu_id);
5421
5422       /* We check to make sure that the entry tried to handle the text, and that
5423        * the text has changed.
5424        */
5425       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5426       text_modified = strcmp (old_text, new_text) != 0;
5427       g_free (old_text);
5428       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5429           (retval && text_modified))               /* ...or the text was modified */
5430         {
5431           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5432             {
5433               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5434               return TRUE;
5435             }
5436           else
5437             {
5438               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5439               return FALSE;
5440             }
5441         }
5442     }
5443
5444   return FALSE;
5445 }
5446
5447 static gboolean
5448 gtk_tree_view_key_release (GtkWidget   *widget,
5449                            GdkEventKey *event)
5450 {
5451   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5452
5453   if (tree_view->priv->rubber_band_status)
5454     return TRUE;
5455
5456   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5457 }
5458
5459 /* FIXME Is this function necessary? Can I get an enter_notify event
5460  * w/o either an expose event or a mouse motion event?
5461  */
5462 static gboolean
5463 gtk_tree_view_enter_notify (GtkWidget        *widget,
5464                             GdkEventCrossing *event)
5465 {
5466   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5467   GtkRBTree *tree;
5468   GtkRBNode *node;
5469   gint new_y;
5470
5471   /* Sanity check it */
5472   if (event->window != tree_view->priv->bin_window)
5473     return FALSE;
5474
5475   if (tree_view->priv->tree == NULL)
5476     return FALSE;
5477
5478   if (event->mode == GDK_CROSSING_GRAB ||
5479       event->mode == GDK_CROSSING_GTK_GRAB ||
5480       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5481       event->mode == GDK_CROSSING_STATE_CHANGED)
5482     return TRUE;
5483
5484   /* find the node internally */
5485   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5486   if (new_y < 0)
5487     new_y = 0;
5488   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5489
5490   if ((tree_view->priv->button_pressed_node == NULL) ||
5491       (tree_view->priv->button_pressed_node == node))
5492     prelight_or_select (tree_view, tree, node, event->x, event->y);
5493
5494   return TRUE;
5495 }
5496
5497 static gboolean
5498 gtk_tree_view_leave_notify (GtkWidget        *widget,
5499                             GdkEventCrossing *event)
5500 {
5501   GtkTreeView *tree_view;
5502
5503   if (event->mode == GDK_CROSSING_GRAB)
5504     return TRUE;
5505
5506   tree_view = GTK_TREE_VIEW (widget);
5507
5508   if (tree_view->priv->prelight_node)
5509     _gtk_tree_view_queue_draw_node (tree_view,
5510                                    tree_view->priv->prelight_tree,
5511                                    tree_view->priv->prelight_node,
5512                                    NULL);
5513
5514   prelight_or_select (tree_view,
5515                       NULL, NULL,
5516                       -1000, -1000); /* coords not possibly over an arrow */
5517
5518   return TRUE;
5519 }
5520
5521
5522 static gint
5523 gtk_tree_view_focus_out (GtkWidget     *widget,
5524                          GdkEventFocus *event)
5525 {
5526   GtkTreeView *tree_view;
5527
5528   tree_view = GTK_TREE_VIEW (widget);
5529
5530   gtk_widget_queue_draw (widget);
5531
5532   /* destroy interactive search dialog */
5533   if (tree_view->priv->search_window)
5534     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5535
5536   return FALSE;
5537 }
5538
5539
5540 /* Incremental Reflow
5541  */
5542
5543 static void
5544 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5545                                  GtkRBTree   *tree,
5546                                  GtkRBNode   *node)
5547 {
5548   gint y;
5549
5550   y = _gtk_rbtree_node_find_offset (tree, node)
5551     - tree_view->priv->vadjustment->value
5552     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5553
5554   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5555                               0, y,
5556                               GTK_WIDGET (tree_view)->allocation.width,
5557                               GTK_RBNODE_GET_HEIGHT (node));
5558 }
5559
5560 static gboolean
5561 node_is_visible (GtkTreeView *tree_view,
5562                  GtkRBTree   *tree,
5563                  GtkRBNode   *node)
5564 {
5565   int y;
5566   int height;
5567
5568   y = _gtk_rbtree_node_find_offset (tree, node);
5569   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5570
5571   if (y >= tree_view->priv->vadjustment->value &&
5572       y + height <= (tree_view->priv->vadjustment->value
5573                      + tree_view->priv->vadjustment->page_size))
5574     return TRUE;
5575
5576   return FALSE;
5577 }
5578
5579 /* Returns TRUE if it updated the size
5580  */
5581 static gboolean
5582 validate_row (GtkTreeView *tree_view,
5583               GtkRBTree   *tree,
5584               GtkRBNode   *node,
5585               GtkTreeIter *iter,
5586               GtkTreePath *path)
5587 {
5588   GtkTreeViewColumn *column;
5589   GList *list, *first_column, *last_column;
5590   gint height = 0;
5591   gint horizontal_separator;
5592   gint vertical_separator;
5593   gint focus_line_width;
5594   gint depth = gtk_tree_path_get_depth (path);
5595   gboolean retval = FALSE;
5596   gboolean is_separator = FALSE;
5597   gboolean draw_vgrid_lines, draw_hgrid_lines;
5598   gint focus_pad;
5599   gint grid_line_width;
5600   gboolean wide_separators;
5601   gint separator_height;
5602
5603   /* double check the row needs validating */
5604   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5605       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5606     return FALSE;
5607
5608   is_separator = row_is_separator (tree_view, iter, NULL);
5609
5610   gtk_widget_style_get (GTK_WIDGET (tree_view),
5611                         "focus-padding", &focus_pad,
5612                         "focus-line-width", &focus_line_width,
5613                         "horizontal-separator", &horizontal_separator,
5614                         "vertical-separator", &vertical_separator,
5615                         "grid-line-width", &grid_line_width,
5616                         "wide-separators",  &wide_separators,
5617                         "separator-height", &separator_height,
5618                         NULL);
5619
5620   draw_vgrid_lines =
5621     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5622     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5623   draw_hgrid_lines =
5624     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5625     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5626
5627   for (last_column = g_list_last (tree_view->priv->columns);
5628        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5629        last_column = last_column->prev)
5630     ;
5631
5632   for (first_column = g_list_first (tree_view->priv->columns);
5633        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5634        first_column = first_column->next)
5635     ;
5636
5637   for (list = tree_view->priv->columns; list; list = list->next)
5638     {
5639       gint tmp_width;
5640       gint tmp_height;
5641
5642       column = list->data;
5643
5644       if (! column->visible)
5645         continue;
5646
5647       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5648         continue;
5649
5650       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5651                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5652                                                node->children?TRUE:FALSE);
5653       gtk_tree_view_column_cell_get_size (column,
5654                                           NULL, NULL, NULL,
5655                                           &tmp_width, &tmp_height);
5656
5657       if (!is_separator)
5658         {
5659           tmp_height += vertical_separator;
5660           height = MAX (height, tmp_height);
5661           height = MAX (height, tree_view->priv->expander_size);
5662         }
5663       else
5664         {
5665           if (wide_separators)
5666             height = separator_height + 2 * focus_pad;
5667           else
5668             height = 2 + 2 * focus_pad;
5669         }
5670
5671       if (gtk_tree_view_is_expander_column (tree_view, column))
5672         {
5673           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5674
5675           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5676             tmp_width += depth * tree_view->priv->expander_size;
5677         }
5678       else
5679         tmp_width = tmp_width + horizontal_separator;
5680
5681       if (draw_vgrid_lines)
5682         {
5683           if (list->data == first_column || list->data == last_column)
5684             tmp_width += grid_line_width / 2.0;
5685           else
5686             tmp_width += grid_line_width;
5687         }
5688
5689       if (tmp_width > column->requested_width)
5690         {
5691           retval = TRUE;
5692           column->requested_width = tmp_width;
5693         }
5694     }
5695
5696   if (draw_hgrid_lines)
5697     height += grid_line_width;
5698
5699   if (height != GTK_RBNODE_GET_HEIGHT (node))
5700     {
5701       retval = TRUE;
5702       _gtk_rbtree_node_set_height (tree, node, height);
5703     }
5704   _gtk_rbtree_node_mark_valid (tree, node);
5705   tree_view->priv->post_validation_flag = TRUE;
5706
5707   return retval;
5708 }
5709
5710
5711 static void
5712 validate_visible_area (GtkTreeView *tree_view)
5713 {
5714   GtkTreePath *path = NULL;
5715   GtkTreePath *above_path = NULL;
5716   GtkTreeIter iter;
5717   GtkRBTree *tree = NULL;
5718   GtkRBNode *node = NULL;
5719   gboolean need_redraw = FALSE;
5720   gboolean size_changed = FALSE;
5721   gint total_height;
5722   gint area_above = 0;
5723   gint area_below = 0;
5724
5725   if (tree_view->priv->tree == NULL)
5726     return;
5727
5728   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5729       tree_view->priv->scroll_to_path == NULL)
5730     return;
5731
5732   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5733
5734   if (total_height == 0)
5735     return;
5736
5737   /* First, we check to see if we need to scroll anywhere
5738    */
5739   if (tree_view->priv->scroll_to_path)
5740     {
5741       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5742       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5743         {
5744           /* we are going to scroll, and will update dy */
5745           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5746           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5747               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5748             {
5749               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5750               if (validate_row (tree_view, tree, node, &iter, path))
5751                 size_changed = TRUE;
5752             }
5753
5754           if (tree_view->priv->scroll_to_use_align)
5755             {
5756               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5757               area_above = (total_height - height) *
5758                 tree_view->priv->scroll_to_row_align;
5759               area_below = total_height - area_above - height;
5760               area_above = MAX (area_above, 0);
5761               area_below = MAX (area_below, 0);
5762             }
5763           else
5764             {
5765               /* two cases:
5766                * 1) row not visible
5767                * 2) row visible
5768                */
5769               gint dy;
5770               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5771
5772               dy = _gtk_rbtree_node_find_offset (tree, node);
5773
5774               if (dy >= tree_view->priv->vadjustment->value &&
5775                   dy + height <= (tree_view->priv->vadjustment->value
5776                                   + tree_view->priv->vadjustment->page_size))
5777                 {
5778                   /* row visible: keep the row at the same position */
5779                   area_above = dy - tree_view->priv->vadjustment->value;
5780                   area_below = (tree_view->priv->vadjustment->value +
5781                                 tree_view->priv->vadjustment->page_size)
5782                                - dy - height;
5783                 }
5784               else
5785                 {
5786                   /* row not visible */
5787                   if (dy >= 0
5788                       && dy + height <= tree_view->priv->vadjustment->page_size)
5789                     {
5790                       /* row at the beginning -- fixed */
5791                       area_above = dy;
5792                       area_below = tree_view->priv->vadjustment->page_size
5793                                    - area_above - height;
5794                     }
5795                   else if (dy >= (tree_view->priv->vadjustment->upper -
5796                                   tree_view->priv->vadjustment->page_size))
5797                     {
5798                       /* row at the end -- fixed */
5799                       area_above = dy - (tree_view->priv->vadjustment->upper -
5800                                    tree_view->priv->vadjustment->page_size);
5801                       area_below = tree_view->priv->vadjustment->page_size -
5802                                    area_above - height;
5803
5804                       if (area_below < 0)
5805                         {
5806                           area_above = tree_view->priv->vadjustment->page_size - height;
5807                           area_below = 0;
5808                         }
5809                     }
5810                   else
5811                     {
5812                       /* row somewhere in the middle, bring it to the top
5813                        * of the view
5814                        */
5815                       area_above = 0;
5816                       area_below = total_height - height;
5817                     }
5818                 }
5819             }
5820         }
5821       else
5822         /* the scroll to isn't valid; ignore it.
5823          */
5824         {
5825           if (tree_view->priv->scroll_to_path && !path)
5826             {
5827               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5828               tree_view->priv->scroll_to_path = NULL;
5829             }
5830           if (path)
5831             gtk_tree_path_free (path);
5832           path = NULL;
5833         }
5834     }
5835
5836   /* We didn't have a scroll_to set, so we just handle things normally
5837    */
5838   if (path == NULL)
5839     {
5840       gint offset;
5841
5842       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5843                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5844                                         &tree, &node);
5845       if (node == NULL)
5846         {
5847           /* In this case, nothing has been validated */
5848           path = gtk_tree_path_new_first ();
5849           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5850         }
5851       else
5852         {
5853           path = _gtk_tree_view_find_path (tree_view, tree, node);
5854           total_height += offset;
5855         }
5856
5857       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5858
5859       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5860           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5861         {
5862           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5863           if (validate_row (tree_view, tree, node, &iter, path))
5864             size_changed = TRUE;
5865         }
5866       area_above = 0;
5867       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5868     }
5869
5870   above_path = gtk_tree_path_copy (path);
5871
5872   /* if we do not validate any row above the new top_row, we will make sure
5873    * that the row immediately above top_row has been validated. (if we do not
5874    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5875    * when invalidated that row's height will be zero. and this will mess up
5876    * scrolling).
5877    */
5878   if (area_above == 0)
5879     {
5880       GtkRBTree *tmptree;
5881       GtkRBNode *tmpnode;
5882
5883       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5884       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5885
5886       if (tmpnode)
5887         {
5888           GtkTreePath *tmppath;
5889           GtkTreeIter tmpiter;
5890
5891           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5892           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5893
5894           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5895               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5896             {
5897               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5898               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5899                 size_changed = TRUE;
5900             }
5901
5902           gtk_tree_path_free (tmppath);
5903         }
5904     }
5905
5906   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5907    * backwards is much slower then forward, as there is no iter_prev function.
5908    * We go forwards first in case we run out of tree.  Then we go backwards to
5909    * fill out the top.
5910    */
5911   while (node && area_below > 0)
5912     {
5913       if (node->children)
5914         {
5915           GtkTreeIter parent = iter;
5916           gboolean has_child;
5917
5918           tree = node->children;
5919           node = tree->root;
5920
5921           g_assert (node != tree->nil);
5922
5923           while (node->left != tree->nil)
5924             node = node->left;
5925           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5926                                                     &iter,
5927                                                     &parent);
5928           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5929           gtk_tree_path_down (path);
5930         }
5931       else
5932         {
5933           gboolean done = FALSE;
5934           do
5935             {
5936               node = _gtk_rbtree_next (tree, node);
5937               if (node != NULL)
5938                 {
5939                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5940                   done = TRUE;
5941                   gtk_tree_path_next (path);
5942
5943                   /* Sanity Check! */
5944                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5945                 }
5946               else
5947                 {
5948                   GtkTreeIter parent_iter = iter;
5949                   gboolean has_parent;
5950
5951                   node = tree->parent_node;
5952                   tree = tree->parent_tree;
5953                   if (tree == NULL)
5954                     break;
5955                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5956                                                            &iter,
5957                                                            &parent_iter);
5958                   gtk_tree_path_up (path);
5959
5960                   /* Sanity check */
5961                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5962                 }
5963             }
5964           while (!done);
5965         }
5966
5967       if (!node)
5968         break;
5969
5970       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5971           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5972         {
5973           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5974           if (validate_row (tree_view, tree, node, &iter, path))
5975               size_changed = TRUE;
5976         }
5977
5978       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5979     }
5980   gtk_tree_path_free (path);
5981
5982   /* If we ran out of tree, and have extra area_below left, we need to add it
5983    * to area_above */
5984   if (area_below > 0)
5985     area_above += area_below;
5986
5987   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5988
5989   /* We walk backwards */
5990   while (area_above > 0)
5991     {
5992       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5993
5994       /* Always find the new path in the tree.  We cannot just assume
5995        * a gtk_tree_path_prev() is enough here, as there might be children
5996        * in between this node and the previous sibling node.  If this
5997        * appears to be a performance hotspot in profiles, we can look into
5998        * intrigate logic for keeping path, node and iter in sync like
5999        * we do for forward walks.  (Which will be hard because of the lacking
6000        * iter_prev).
6001        */
6002
6003       if (node == NULL)
6004         break;
6005
6006       gtk_tree_path_free (above_path);
6007       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6008
6009       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6010
6011       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6012           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6013         {
6014           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6015           if (validate_row (tree_view, tree, node, &iter, above_path))
6016             size_changed = TRUE;
6017         }
6018       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6019     }
6020
6021   /* if we scrolled to a path, we need to set the dy here,
6022    * and sync the top row accordingly
6023    */
6024   if (tree_view->priv->scroll_to_path)
6025     {
6026       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6027       gtk_tree_view_top_row_to_dy (tree_view);
6028
6029       need_redraw = TRUE;
6030     }
6031   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6032     {
6033       /* when we are not scrolling, we should never set dy to something
6034        * else than zero. we update top_row to be in sync with dy = 0.
6035        */
6036       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6037       gtk_tree_view_dy_to_top_row (tree_view);
6038     }
6039   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6040     {
6041       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6042       gtk_tree_view_dy_to_top_row (tree_view);
6043     }
6044   else
6045     gtk_tree_view_top_row_to_dy (tree_view);
6046
6047   /* update width/height and queue a resize */
6048   if (size_changed)
6049     {
6050       GtkRequisition requisition;
6051
6052       /* We temporarily guess a size, under the assumption that it will be the
6053        * same when we get our next size_allocate.  If we don't do this, we'll be
6054        * in an inconsistent state if we call top_row_to_dy. */
6055
6056       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6057       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6058       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6059       gtk_adjustment_changed (tree_view->priv->hadjustment);
6060       gtk_adjustment_changed (tree_view->priv->vadjustment);
6061       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6062     }
6063
6064   if (tree_view->priv->scroll_to_path)
6065     {
6066       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6067       tree_view->priv->scroll_to_path = NULL;
6068     }
6069
6070   if (above_path)
6071     gtk_tree_path_free (above_path);
6072
6073   if (tree_view->priv->scroll_to_column)
6074     {
6075       tree_view->priv->scroll_to_column = NULL;
6076     }
6077   if (need_redraw)
6078     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6079 }
6080
6081 static void
6082 initialize_fixed_height_mode (GtkTreeView *tree_view)
6083 {
6084   if (!tree_view->priv->tree)
6085     return;
6086
6087   if (tree_view->priv->fixed_height < 0)
6088     {
6089       GtkTreeIter iter;
6090       GtkTreePath *path;
6091
6092       GtkRBTree *tree = NULL;
6093       GtkRBNode *node = NULL;
6094
6095       tree = tree_view->priv->tree;
6096       node = tree->root;
6097
6098       path = _gtk_tree_view_find_path (tree_view, tree, node);
6099       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6100
6101       validate_row (tree_view, tree, node, &iter, path);
6102
6103       gtk_tree_path_free (path);
6104
6105       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6106     }
6107
6108    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6109                                  tree_view->priv->fixed_height, TRUE);
6110 }
6111
6112 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6113  * the left-most uninvalidated node.  We then try walking right, validating
6114  * nodes.  Once we find a valid node, we repeat the previous process of finding
6115  * the first invalid node.
6116  */
6117
6118 static gboolean
6119 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6120 {
6121   GtkRBTree *tree = NULL;
6122   GtkRBNode *node = NULL;
6123   gboolean validated_area = FALSE;
6124   gint retval = TRUE;
6125   GtkTreePath *path = NULL;
6126   GtkTreeIter iter;
6127   GTimer *timer;
6128   gint i = 0;
6129
6130   gint prev_height = -1;
6131   gboolean fixed_height = TRUE;
6132
6133   g_assert (tree_view);
6134
6135   if (tree_view->priv->tree == NULL)
6136       return FALSE;
6137
6138   if (tree_view->priv->fixed_height_mode)
6139     {
6140       if (tree_view->priv->fixed_height < 0)
6141         initialize_fixed_height_mode (tree_view);
6142
6143       return FALSE;
6144     }
6145
6146   timer = g_timer_new ();
6147   g_timer_start (timer);
6148
6149   do
6150     {
6151       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6152         {
6153           retval = FALSE;
6154           goto done;
6155         }
6156
6157       if (path != NULL)
6158         {
6159           node = _gtk_rbtree_next (tree, node);
6160           if (node != NULL)
6161             {
6162               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6163               gtk_tree_path_next (path);
6164             }
6165           else
6166             {
6167               gtk_tree_path_free (path);
6168               path = NULL;
6169             }
6170         }
6171
6172       if (path == NULL)
6173         {
6174           tree = tree_view->priv->tree;
6175           node = tree_view->priv->tree->root;
6176
6177           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6178
6179           do
6180             {
6181               if (node->left != tree->nil &&
6182                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6183                 {
6184                   node = node->left;
6185                 }
6186               else if (node->right != tree->nil &&
6187                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6188                 {
6189                   node = node->right;
6190                 }
6191               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6192                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6193                 {
6194                   break;
6195                 }
6196               else if (node->children != NULL)
6197                 {
6198                   tree = node->children;
6199                   node = tree->root;
6200                 }
6201               else
6202                 /* RBTree corruption!  All bad */
6203                 g_assert_not_reached ();
6204             }
6205           while (TRUE);
6206           path = _gtk_tree_view_find_path (tree_view, tree, node);
6207           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6208         }
6209
6210       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6211                        validated_area;
6212
6213       if (!tree_view->priv->fixed_height_check)
6214         {
6215           gint height;
6216
6217           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6218           if (prev_height < 0)
6219             prev_height = height;
6220           else if (prev_height != height)
6221             fixed_height = FALSE;
6222         }
6223
6224       i++;
6225     }
6226   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6227
6228   if (!tree_view->priv->fixed_height_check)
6229    {
6230      if (fixed_height)
6231        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6232
6233      tree_view->priv->fixed_height_check = 1;
6234    }
6235
6236  done:
6237   if (validated_area)
6238     {
6239       GtkRequisition requisition;
6240       /* We temporarily guess a size, under the assumption that it will be the
6241        * same when we get our next size_allocate.  If we don't do this, we'll be
6242        * in an inconsistent state when we call top_row_to_dy. */
6243
6244       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6245       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6246       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6247       gtk_adjustment_changed (tree_view->priv->hadjustment);
6248       gtk_adjustment_changed (tree_view->priv->vadjustment);
6249
6250       if (queue_resize)
6251         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6252     }
6253
6254   if (path) gtk_tree_path_free (path);
6255   g_timer_destroy (timer);
6256
6257   return retval;
6258 }
6259
6260 static gboolean
6261 validate_rows (GtkTreeView *tree_view)
6262 {
6263   gboolean retval;
6264
6265   retval = do_validate_rows (tree_view, TRUE);
6266
6267   if (! retval && tree_view->priv->validate_rows_timer)
6268     {
6269       g_source_remove (tree_view->priv->validate_rows_timer);
6270       tree_view->priv->validate_rows_timer = 0;
6271     }
6272
6273   return retval;
6274 }
6275
6276 static gboolean
6277 validate_rows_handler (GtkTreeView *tree_view)
6278 {
6279   gboolean retval;
6280
6281   retval = do_validate_rows (tree_view, TRUE);
6282   if (! retval && tree_view->priv->validate_rows_timer)
6283     {
6284       g_source_remove (tree_view->priv->validate_rows_timer);
6285       tree_view->priv->validate_rows_timer = 0;
6286     }
6287
6288   return retval;
6289 }
6290
6291 static gboolean
6292 do_presize_handler (GtkTreeView *tree_view)
6293 {
6294   if (tree_view->priv->mark_rows_col_dirty)
6295     {
6296       if (tree_view->priv->tree)
6297         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6298       tree_view->priv->mark_rows_col_dirty = FALSE;
6299     }
6300   validate_visible_area (tree_view);
6301   tree_view->priv->presize_handler_timer = 0;
6302
6303   if (tree_view->priv->fixed_height_mode)
6304     {
6305       GtkRequisition requisition;
6306
6307       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6308
6309       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6310       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6311       gtk_adjustment_changed (tree_view->priv->hadjustment);
6312       gtk_adjustment_changed (tree_view->priv->vadjustment);
6313       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6314     }
6315
6316   return FALSE;
6317 }
6318
6319 static gboolean
6320 presize_handler_callback (gpointer data)
6321 {
6322   do_presize_handler (GTK_TREE_VIEW (data));
6323
6324   return FALSE;
6325 }
6326
6327 static void
6328 install_presize_handler (GtkTreeView *tree_view)
6329 {
6330   if (! GTK_WIDGET_REALIZED (tree_view))
6331     return;
6332
6333   if (! tree_view->priv->presize_handler_timer)
6334     {
6335       tree_view->priv->presize_handler_timer =
6336         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6337     }
6338   if (! tree_view->priv->validate_rows_timer)
6339     {
6340       tree_view->priv->validate_rows_timer =
6341         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6342     }
6343 }
6344
6345 static gboolean
6346 scroll_sync_handler (GtkTreeView *tree_view)
6347 {
6348   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6349     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6350   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6351     gtk_tree_view_top_row_to_dy (tree_view);
6352   else
6353     gtk_tree_view_dy_to_top_row (tree_view);
6354
6355   tree_view->priv->scroll_sync_timer = 0;
6356
6357   return FALSE;
6358 }
6359
6360 static void
6361 install_scroll_sync_handler (GtkTreeView *tree_view)
6362 {
6363   if (! GTK_WIDGET_REALIZED (tree_view))
6364     return;
6365
6366   if (!tree_view->priv->scroll_sync_timer)
6367     {
6368       tree_view->priv->scroll_sync_timer =
6369         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6370     }
6371 }
6372
6373 static void
6374 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6375                            GtkTreePath *path,
6376                            gint         offset)
6377 {
6378   gtk_tree_row_reference_free (tree_view->priv->top_row);
6379
6380   if (!path)
6381     {
6382       tree_view->priv->top_row = NULL;
6383       tree_view->priv->top_row_dy = 0;
6384     }
6385   else
6386     {
6387       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6388       tree_view->priv->top_row_dy = offset;
6389     }
6390 }
6391
6392 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6393  * it's set to be NULL, and top_row_dy is 0;
6394  */
6395 static void
6396 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6397 {
6398   gint offset;
6399   GtkTreePath *path;
6400   GtkRBTree *tree;
6401   GtkRBNode *node;
6402
6403   if (tree_view->priv->tree == NULL)
6404     {
6405       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6406     }
6407   else
6408     {
6409       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6410                                         tree_view->priv->dy,
6411                                         &tree, &node);
6412
6413       if (tree == NULL)
6414         {
6415           tree_view->priv->top_row = NULL;
6416           tree_view->priv->top_row_dy = 0;
6417         }
6418       else
6419         {
6420           path = _gtk_tree_view_find_path (tree_view, tree, node);
6421           gtk_tree_view_set_top_row (tree_view, path, offset);
6422           gtk_tree_path_free (path);
6423         }
6424     }
6425 }
6426
6427 static void
6428 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6429 {
6430   GtkTreePath *path;
6431   GtkRBTree *tree;
6432   GtkRBNode *node;
6433   int new_dy;
6434
6435   /* Avoid recursive calls */
6436   if (tree_view->priv->in_top_row_to_dy)
6437     return;
6438
6439   if (tree_view->priv->top_row)
6440     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6441   else
6442     path = NULL;
6443
6444   if (!path)
6445     tree = NULL;
6446   else
6447     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6448
6449   if (path)
6450     gtk_tree_path_free (path);
6451
6452   if (tree == NULL)
6453     {
6454       /* keep dy and set new toprow */
6455       gtk_tree_row_reference_free (tree_view->priv->top_row);
6456       tree_view->priv->top_row = NULL;
6457       tree_view->priv->top_row_dy = 0;
6458       /* DO NOT install the idle handler */
6459       gtk_tree_view_dy_to_top_row (tree_view);
6460       return;
6461     }
6462
6463   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6464       < tree_view->priv->top_row_dy)
6465     {
6466       /* new top row -- do NOT install the idle handler */
6467       gtk_tree_view_dy_to_top_row (tree_view);
6468       return;
6469     }
6470
6471   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6472   new_dy += tree_view->priv->top_row_dy;
6473
6474   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6475     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6476
6477   new_dy = MAX (0, new_dy);
6478
6479   tree_view->priv->in_top_row_to_dy = TRUE;
6480   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6481   tree_view->priv->in_top_row_to_dy = FALSE;
6482 }
6483
6484
6485 void
6486 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6487 {
6488   tree_view->priv->mark_rows_col_dirty = TRUE;
6489
6490   install_presize_handler (tree_view);
6491 }
6492
6493 /*
6494  * This function works synchronously (due to the while (validate_rows...)
6495  * loop).
6496  *
6497  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6498  * here. You now need to check that yourself.
6499  */
6500 void
6501 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6502                                 GtkTreeViewColumn *column)
6503 {
6504   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6505   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6506
6507   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6508
6509   do_presize_handler (tree_view);
6510   while (validate_rows (tree_view));
6511
6512   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6513 }
6514
6515 /* Drag-and-drop */
6516
6517 static void
6518 set_source_row (GdkDragContext *context,
6519                 GtkTreeModel   *model,
6520                 GtkTreePath    *source_row)
6521 {
6522   g_object_set_data_full (G_OBJECT (context),
6523                           I_("gtk-tree-view-source-row"),
6524                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6525                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6526 }
6527
6528 static GtkTreePath*
6529 get_source_row (GdkDragContext *context)
6530 {
6531   GtkTreeRowReference *ref =
6532     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6533
6534   if (ref)
6535     return gtk_tree_row_reference_get_path (ref);
6536   else
6537     return NULL;
6538 }
6539
6540 typedef struct
6541 {
6542   GtkTreeRowReference *dest_row;
6543   guint                path_down_mode   : 1;
6544   guint                empty_view_drop  : 1;
6545   guint                drop_append_mode : 1;
6546 }
6547 DestRow;
6548
6549 static void
6550 dest_row_free (gpointer data)
6551 {
6552   DestRow *dr = (DestRow *)data;
6553
6554   gtk_tree_row_reference_free (dr->dest_row);
6555   g_slice_free (DestRow, dr);
6556 }
6557
6558 static void
6559 set_dest_row (GdkDragContext *context,
6560               GtkTreeModel   *model,
6561               GtkTreePath    *dest_row,
6562               gboolean        path_down_mode,
6563               gboolean        empty_view_drop,
6564               gboolean        drop_append_mode)
6565 {
6566   DestRow *dr;
6567
6568   if (!dest_row)
6569     {
6570       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6571                               NULL, NULL);
6572       return;
6573     }
6574
6575   dr = g_slice_new (DestRow);
6576
6577   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6578   dr->path_down_mode = path_down_mode != FALSE;
6579   dr->empty_view_drop = empty_view_drop != FALSE;
6580   dr->drop_append_mode = drop_append_mode != FALSE;
6581
6582   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6583                           dr, (GDestroyNotify) dest_row_free);
6584 }
6585
6586 static GtkTreePath*
6587 get_dest_row (GdkDragContext *context,
6588               gboolean       *path_down_mode)
6589 {
6590   DestRow *dr =
6591     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6592
6593   if (dr)
6594     {
6595       GtkTreePath *path = NULL;
6596
6597       if (path_down_mode)
6598         *path_down_mode = dr->path_down_mode;
6599
6600       if (dr->dest_row)
6601         path = gtk_tree_row_reference_get_path (dr->dest_row);
6602       else if (dr->empty_view_drop)
6603         path = gtk_tree_path_new_from_indices (0, -1);
6604       else
6605         path = NULL;
6606
6607       if (path && dr->drop_append_mode)
6608         gtk_tree_path_next (path);
6609
6610       return path;
6611     }
6612   else
6613     return NULL;
6614 }
6615
6616 /* Get/set whether drag_motion requested the drag data and
6617  * drag_data_received should thus not actually insert the data,
6618  * since the data doesn't result from a drop.
6619  */
6620 static void
6621 set_status_pending (GdkDragContext *context,
6622                     GdkDragAction   suggested_action)
6623 {
6624   g_object_set_data (G_OBJECT (context),
6625                      I_("gtk-tree-view-status-pending"),
6626                      GINT_TO_POINTER (suggested_action));
6627 }
6628
6629 static GdkDragAction
6630 get_status_pending (GdkDragContext *context)
6631 {
6632   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6633                                              "gtk-tree-view-status-pending"));
6634 }
6635
6636 static TreeViewDragInfo*
6637 get_info (GtkTreeView *tree_view)
6638 {
6639   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6640 }
6641
6642 static void
6643 destroy_info (TreeViewDragInfo *di)
6644 {
6645   g_slice_free (TreeViewDragInfo, di);
6646 }
6647
6648 static TreeViewDragInfo*
6649 ensure_info (GtkTreeView *tree_view)
6650 {
6651   TreeViewDragInfo *di;
6652
6653   di = get_info (tree_view);
6654
6655   if (di == NULL)
6656     {
6657       di = g_slice_new0 (TreeViewDragInfo);
6658
6659       g_object_set_data_full (G_OBJECT (tree_view),
6660                               I_("gtk-tree-view-drag-info"),
6661                               di,
6662                               (GDestroyNotify) destroy_info);
6663     }
6664
6665   return di;
6666 }
6667
6668 static void
6669 remove_info (GtkTreeView *tree_view)
6670 {
6671   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6672 }
6673
6674 #if 0
6675 static gint
6676 drag_scan_timeout (gpointer data)
6677 {
6678   GtkTreeView *tree_view;
6679   gint x, y;
6680   GdkModifierType state;
6681   GtkTreePath *path = NULL;
6682   GtkTreeViewColumn *column = NULL;
6683   GdkRectangle visible_rect;
6684
6685   GDK_THREADS_ENTER ();
6686
6687   tree_view = GTK_TREE_VIEW (data);
6688
6689   gdk_window_get_pointer (tree_view->priv->bin_window,
6690                           &x, &y, &state);
6691
6692   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6693
6694   /* See if we are near the edge. */
6695   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6696       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6697       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6698       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6699     {
6700       gtk_tree_view_get_path_at_pos (tree_view,
6701                                      tree_view->priv->bin_window,
6702                                      x, y,
6703                                      &path,
6704                                      &column,
6705                                      NULL,
6706                                      NULL);
6707
6708       if (path != NULL)
6709         {
6710           gtk_tree_view_scroll_to_cell (tree_view,
6711                                         path,
6712                                         column,
6713                                         TRUE,
6714                                         0.5, 0.5);
6715
6716           gtk_tree_path_free (path);
6717         }
6718     }
6719
6720   GDK_THREADS_LEAVE ();
6721
6722   return TRUE;
6723 }
6724 #endif /* 0 */
6725
6726 static void
6727 add_scroll_timeout (GtkTreeView *tree_view)
6728 {
6729   if (tree_view->priv->scroll_timeout == 0)
6730     {
6731       tree_view->priv->scroll_timeout =
6732         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6733     }
6734 }
6735
6736 static void
6737 remove_scroll_timeout (GtkTreeView *tree_view)
6738 {
6739   if (tree_view->priv->scroll_timeout != 0)
6740     {
6741       g_source_remove (tree_view->priv->scroll_timeout);
6742       tree_view->priv->scroll_timeout = 0;
6743     }
6744 }
6745
6746 static gboolean
6747 check_model_dnd (GtkTreeModel *model,
6748                  GType         required_iface,
6749                  const gchar  *signal)
6750 {
6751   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6752     {
6753       g_warning ("You must override the default '%s' handler "
6754                  "on GtkTreeView when using models that don't support "
6755                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6756                  "is to connect to '%s' and call "
6757                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6758                  "the default handler from running. Look at the source code "
6759                  "for the default handler in gtktreeview.c to get an idea what "
6760                  "your handler should do. (gtktreeview.c is in the GTK source "
6761                  "code.) If you're using GTK from a language other than C, "
6762                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6763                  signal, g_type_name (required_iface), signal);
6764       return FALSE;
6765     }
6766   else
6767     return TRUE;
6768 }
6769
6770 static void
6771 remove_open_timeout (GtkTreeView *tree_view)
6772 {
6773   if (tree_view->priv->open_dest_timeout != 0)
6774     {
6775       g_source_remove (tree_view->priv->open_dest_timeout);
6776       tree_view->priv->open_dest_timeout = 0;
6777     }
6778 }
6779
6780
6781 static gint
6782 open_row_timeout (gpointer data)
6783 {
6784   GtkTreeView *tree_view = data;
6785   GtkTreePath *dest_path = NULL;
6786   GtkTreeViewDropPosition pos;
6787   gboolean result = FALSE;
6788
6789   gtk_tree_view_get_drag_dest_row (tree_view,
6790                                    &dest_path,
6791                                    &pos);
6792
6793   if (dest_path &&
6794       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6795        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6796     {
6797       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6798       tree_view->priv->open_dest_timeout = 0;
6799
6800       gtk_tree_path_free (dest_path);
6801     }
6802   else
6803     {
6804       if (dest_path)
6805         gtk_tree_path_free (dest_path);
6806
6807       result = TRUE;
6808     }
6809
6810   return result;
6811 }
6812
6813 static gboolean
6814 scroll_row_timeout (gpointer data)
6815 {
6816   GtkTreeView *tree_view = data;
6817
6818   gtk_tree_view_vertical_autoscroll (tree_view);
6819
6820   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6821     gtk_tree_view_update_rubber_band (tree_view);
6822
6823   return TRUE;
6824 }
6825
6826 /* Returns TRUE if event should not be propagated to parent widgets */
6827 static gboolean
6828 set_destination_row (GtkTreeView    *tree_view,
6829                      GdkDragContext *context,
6830                      /* coordinates relative to the widget */
6831                      gint            x,
6832                      gint            y,
6833                      GdkDragAction  *suggested_action,
6834                      GdkAtom        *target)
6835 {
6836   GtkTreePath *path = NULL;
6837   GtkTreeViewDropPosition pos;
6838   GtkTreeViewDropPosition old_pos;
6839   TreeViewDragInfo *di;
6840   GtkWidget *widget;
6841   GtkTreePath *old_dest_path = NULL;
6842   gboolean can_drop = FALSE;
6843
6844   *suggested_action = 0;
6845   *target = GDK_NONE;
6846
6847   widget = GTK_WIDGET (tree_view);
6848
6849   di = get_info (tree_view);
6850
6851   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6852     {
6853       /* someone unset us as a drag dest, note that if
6854        * we return FALSE drag_leave isn't called
6855        */
6856
6857       gtk_tree_view_set_drag_dest_row (tree_view,
6858                                        NULL,
6859                                        GTK_TREE_VIEW_DROP_BEFORE);
6860
6861       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6862       remove_open_timeout (GTK_TREE_VIEW (widget));
6863
6864       return FALSE; /* no longer a drop site */
6865     }
6866
6867   *target = gtk_drag_dest_find_target (widget, context,
6868                                        gtk_drag_dest_get_target_list (widget));
6869   if (*target == GDK_NONE)
6870     {
6871       return FALSE;
6872     }
6873
6874   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6875                                           x, y,
6876                                           &path,
6877                                           &pos))
6878     {
6879       gint n_children;
6880       GtkTreeModel *model;
6881
6882       remove_open_timeout (tree_view);
6883
6884       /* the row got dropped on empty space, let's setup a special case
6885        */
6886
6887       if (path)
6888         gtk_tree_path_free (path);
6889
6890       model = gtk_tree_view_get_model (tree_view);
6891
6892       n_children = gtk_tree_model_iter_n_children (model, NULL);
6893       if (n_children)
6894         {
6895           pos = GTK_TREE_VIEW_DROP_AFTER;
6896           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6897         }
6898       else
6899         {
6900           pos = GTK_TREE_VIEW_DROP_BEFORE;
6901           path = gtk_tree_path_new_from_indices (0, -1);
6902         }
6903
6904       can_drop = TRUE;
6905
6906       goto out;
6907     }
6908
6909   g_assert (path);
6910
6911   /* If we left the current row's "open" zone, unset the timeout for
6912    * opening the row
6913    */
6914   gtk_tree_view_get_drag_dest_row (tree_view,
6915                                    &old_dest_path,
6916                                    &old_pos);
6917
6918   if (old_dest_path &&
6919       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6920        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6921          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6922     remove_open_timeout (tree_view);
6923
6924   if (old_dest_path)
6925     gtk_tree_path_free (old_dest_path);
6926
6927   if (TRUE /* FIXME if the location droppable predicate */)
6928     {
6929       can_drop = TRUE;
6930     }
6931
6932 out:
6933   if (can_drop)
6934     {
6935       GtkWidget *source_widget;
6936
6937       *suggested_action = context->suggested_action;
6938       source_widget = gtk_drag_get_source_widget (context);
6939
6940       if (source_widget == widget)
6941         {
6942           /* Default to MOVE, unless the user has
6943            * pressed ctrl or shift to affect available actions
6944            */
6945           if ((context->actions & GDK_ACTION_MOVE) != 0)
6946             *suggested_action = GDK_ACTION_MOVE;
6947         }
6948
6949       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6950                                        path, pos);
6951     }
6952   else
6953     {
6954       /* can't drop here */
6955       remove_open_timeout (tree_view);
6956
6957       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6958                                        NULL,
6959                                        GTK_TREE_VIEW_DROP_BEFORE);
6960     }
6961
6962   if (path)
6963     gtk_tree_path_free (path);
6964
6965   return TRUE;
6966 }
6967
6968 static GtkTreePath*
6969 get_logical_dest_row (GtkTreeView *tree_view,
6970                       gboolean    *path_down_mode,
6971                       gboolean    *drop_append_mode)
6972 {
6973   /* adjust path to point to the row the drop goes in front of */
6974   GtkTreePath *path = NULL;
6975   GtkTreeViewDropPosition pos;
6976
6977   g_return_val_if_fail (path_down_mode != NULL, NULL);
6978   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6979
6980   *path_down_mode = FALSE;
6981   *drop_append_mode = 0;
6982
6983   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6984
6985   if (path == NULL)
6986     return NULL;
6987
6988   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6989     ; /* do nothing */
6990   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6991            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6992     *path_down_mode = TRUE;
6993   else
6994     {
6995       GtkTreeIter iter;
6996       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6997
6998       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6999
7000       if (!gtk_tree_model_get_iter (model, &iter, path) ||
7001           !gtk_tree_model_iter_next (model, &iter))
7002         *drop_append_mode = 1;
7003       else
7004         {
7005           *drop_append_mode = 0;
7006           gtk_tree_path_next (path);
7007         }
7008     }
7009
7010   return path;
7011 }
7012
7013 static gboolean
7014 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7015                                         GdkEventMotion   *event)
7016 {
7017   GtkWidget *widget = GTK_WIDGET (tree_view);
7018   GdkDragContext *context;
7019   TreeViewDragInfo *di;
7020   GtkTreePath *path = NULL;
7021   gint button;
7022   gint cell_x, cell_y;
7023   GtkTreeModel *model;
7024   gboolean retval = FALSE;
7025
7026   di = get_info (tree_view);
7027
7028   if (di == NULL || !di->source_set)
7029     goto out;
7030
7031   if (tree_view->priv->pressed_button < 0)
7032     goto out;
7033
7034   if (!gtk_drag_check_threshold (widget,
7035                                  tree_view->priv->press_start_x,
7036                                  tree_view->priv->press_start_y,
7037                                  event->x, event->y))
7038     goto out;
7039
7040   model = gtk_tree_view_get_model (tree_view);
7041
7042   if (model == NULL)
7043     goto out;
7044
7045   button = tree_view->priv->pressed_button;
7046   tree_view->priv->pressed_button = -1;
7047
7048   gtk_tree_view_get_path_at_pos (tree_view,
7049                                  tree_view->priv->press_start_x,
7050                                  tree_view->priv->press_start_y,
7051                                  &path,
7052                                  NULL,
7053                                  &cell_x,
7054                                  &cell_y);
7055
7056   if (path == NULL)
7057     goto out;
7058
7059   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7060       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7061                                            path))
7062     goto out;
7063
7064   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7065     goto out;
7066
7067   /* Now we can begin the drag */
7068
7069   retval = TRUE;
7070
7071   context = gtk_drag_begin (widget,
7072                             gtk_drag_source_get_target_list (widget),
7073                             di->source_actions,
7074                             button,
7075                             (GdkEvent*)event);
7076
7077   set_source_row (context, model, path);
7078
7079  out:
7080   if (path)
7081     gtk_tree_path_free (path);
7082
7083   return retval;
7084 }
7085
7086
7087 static void
7088 gtk_tree_view_drag_begin (GtkWidget      *widget,
7089                           GdkDragContext *context)
7090 {
7091   GtkTreeView *tree_view;
7092   GtkTreePath *path = NULL;
7093   gint cell_x, cell_y;
7094   GdkPixmap *row_pix;
7095   TreeViewDragInfo *di;
7096
7097   tree_view = GTK_TREE_VIEW (widget);
7098
7099   /* if the user uses a custom DND source impl, we don't set the icon here */
7100   di = get_info (tree_view);
7101
7102   if (di == NULL || !di->source_set)
7103     return;
7104
7105   gtk_tree_view_get_path_at_pos (tree_view,
7106                                  tree_view->priv->press_start_x,
7107                                  tree_view->priv->press_start_y,
7108                                  &path,
7109                                  NULL,
7110                                  &cell_x,
7111                                  &cell_y);
7112
7113   g_return_if_fail (path != NULL);
7114
7115   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7116                                                 path);
7117
7118   gtk_drag_set_icon_pixmap (context,
7119                             gdk_drawable_get_colormap (row_pix),
7120                             row_pix,
7121                             NULL,
7122                             /* the + 1 is for the black border in the icon */
7123                             tree_view->priv->press_start_x + 1,
7124                             cell_y + 1);
7125
7126   g_object_unref (row_pix);
7127   gtk_tree_path_free (path);
7128 }
7129
7130 static void
7131 gtk_tree_view_drag_end (GtkWidget      *widget,
7132                         GdkDragContext *context)
7133 {
7134   /* do nothing */
7135 }
7136
7137 /* Default signal implementations for the drag signals */
7138 static void
7139 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7140                              GdkDragContext   *context,
7141                              GtkSelectionData *selection_data,
7142                              guint             info,
7143                              guint             time)
7144 {
7145   GtkTreeView *tree_view;
7146   GtkTreeModel *model;
7147   TreeViewDragInfo *di;
7148   GtkTreePath *source_row;
7149
7150   tree_view = GTK_TREE_VIEW (widget);
7151
7152   model = gtk_tree_view_get_model (tree_view);
7153
7154   if (model == NULL)
7155     return;
7156
7157   di = get_info (GTK_TREE_VIEW (widget));
7158
7159   if (di == NULL)
7160     return;
7161
7162   source_row = get_source_row (context);
7163
7164   if (source_row == NULL)
7165     return;
7166
7167   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7168    * any model; for DragSource models there are some other targets
7169    * we also support.
7170    */
7171
7172   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7173       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7174                                           source_row,
7175                                           selection_data))
7176     goto done;
7177
7178   /* If drag_data_get does nothing, try providing row data. */
7179   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7180     {
7181       gtk_tree_set_row_drag_data (selection_data,
7182                                   model,
7183                                   source_row);
7184     }
7185
7186  done:
7187   gtk_tree_path_free (source_row);
7188 }
7189
7190
7191 static void
7192 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7193                                 GdkDragContext *context)
7194 {
7195   TreeViewDragInfo *di;
7196   GtkTreeModel *model;
7197   GtkTreeView *tree_view;
7198   GtkTreePath *source_row;
7199
7200   tree_view = GTK_TREE_VIEW (widget);
7201   model = gtk_tree_view_get_model (tree_view);
7202
7203   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7204     return;
7205
7206   di = get_info (tree_view);
7207
7208   if (di == NULL)
7209     return;
7210
7211   source_row = get_source_row (context);
7212
7213   if (source_row == NULL)
7214     return;
7215
7216   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7217                                          source_row);
7218
7219   gtk_tree_path_free (source_row);
7220
7221   set_source_row (context, NULL, NULL);
7222 }
7223
7224 static void
7225 gtk_tree_view_drag_leave (GtkWidget      *widget,
7226                           GdkDragContext *context,
7227                           guint             time)
7228 {
7229   /* unset any highlight row */
7230   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7231                                    NULL,
7232                                    GTK_TREE_VIEW_DROP_BEFORE);
7233
7234   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7235   remove_open_timeout (GTK_TREE_VIEW (widget));
7236 }
7237
7238
7239 static gboolean
7240 gtk_tree_view_drag_motion (GtkWidget        *widget,
7241                            GdkDragContext   *context,
7242                            /* coordinates relative to the widget */
7243                            gint              x,
7244                            gint              y,
7245                            guint             time)
7246 {
7247   gboolean empty;
7248   GtkTreePath *path = NULL;
7249   GtkTreeViewDropPosition pos;
7250   GtkTreeView *tree_view;
7251   GdkDragAction suggested_action = 0;
7252   GdkAtom target;
7253
7254   tree_view = GTK_TREE_VIEW (widget);
7255
7256   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7257     return FALSE;
7258
7259   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7260
7261   /* we only know this *after* set_desination_row */
7262   empty = tree_view->priv->empty_view_drop;
7263
7264   if (path == NULL && !empty)
7265     {
7266       /* Can't drop here. */
7267       gdk_drag_status (context, 0, time);
7268     }
7269   else
7270     {
7271       if (tree_view->priv->open_dest_timeout == 0 &&
7272           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7273            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7274         {
7275           tree_view->priv->open_dest_timeout =
7276             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7277         }
7278       else
7279         {
7280           add_scroll_timeout (tree_view);
7281         }
7282
7283       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7284         {
7285           /* Request data so we can use the source row when
7286            * determining whether to accept the drop
7287            */
7288           set_status_pending (context, suggested_action);
7289           gtk_drag_get_data (widget, context, target, time);
7290         }
7291       else
7292         {
7293           set_status_pending (context, 0);
7294           gdk_drag_status (context, suggested_action, time);
7295         }
7296     }
7297
7298   if (path)
7299     gtk_tree_path_free (path);
7300
7301   return TRUE;
7302 }
7303
7304
7305 static gboolean
7306 gtk_tree_view_drag_drop (GtkWidget        *widget,
7307                          GdkDragContext   *context,
7308                          /* coordinates relative to the widget */
7309                          gint              x,
7310                          gint              y,
7311                          guint             time)
7312 {
7313   GtkTreeView *tree_view;
7314   GtkTreePath *path;
7315   GdkDragAction suggested_action = 0;
7316   GdkAtom target = GDK_NONE;
7317   TreeViewDragInfo *di;
7318   GtkTreeModel *model;
7319   gboolean path_down_mode;
7320   gboolean drop_append_mode;
7321
7322   tree_view = GTK_TREE_VIEW (widget);
7323
7324   model = gtk_tree_view_get_model (tree_view);
7325
7326   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7327   remove_open_timeout (GTK_TREE_VIEW (widget));
7328
7329   di = get_info (tree_view);
7330
7331   if (di == NULL)
7332     return FALSE;
7333
7334   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7335     return FALSE;
7336
7337   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7338     return FALSE;
7339
7340   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7341
7342   if (target != GDK_NONE && path != NULL)
7343     {
7344       /* in case a motion had requested drag data, change things so we
7345        * treat drag data receives as a drop.
7346        */
7347       set_status_pending (context, 0);
7348       set_dest_row (context, model, path,
7349                     path_down_mode, tree_view->priv->empty_view_drop,
7350                     drop_append_mode);
7351     }
7352
7353   if (path)
7354     gtk_tree_path_free (path);
7355
7356   /* Unset this thing */
7357   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7358                                    NULL,
7359                                    GTK_TREE_VIEW_DROP_BEFORE);
7360
7361   if (target != GDK_NONE)
7362     {
7363       gtk_drag_get_data (widget, context, target, time);
7364       return TRUE;
7365     }
7366   else
7367     return FALSE;
7368 }
7369
7370 static void
7371 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7372                                   GdkDragContext   *context,
7373                                   /* coordinates relative to the widget */
7374                                   gint              x,
7375                                   gint              y,
7376                                   GtkSelectionData *selection_data,
7377                                   guint             info,
7378                                   guint             time)
7379 {
7380   GtkTreePath *path;
7381   TreeViewDragInfo *di;
7382   gboolean accepted = FALSE;
7383   GtkTreeModel *model;
7384   GtkTreeView *tree_view;
7385   GtkTreePath *dest_row;
7386   GdkDragAction suggested_action;
7387   gboolean path_down_mode;
7388   gboolean drop_append_mode;
7389
7390   tree_view = GTK_TREE_VIEW (widget);
7391
7392   model = gtk_tree_view_get_model (tree_view);
7393
7394   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7395     return;
7396
7397   di = get_info (tree_view);
7398
7399   if (di == NULL)
7400     return;
7401
7402   suggested_action = get_status_pending (context);
7403
7404   if (suggested_action)
7405     {
7406       /* We are getting this data due to a request in drag_motion,
7407        * rather than due to a request in drag_drop, so we are just
7408        * supposed to call drag_status, not actually paste in the
7409        * data.
7410        */
7411       path = get_logical_dest_row (tree_view, &path_down_mode,
7412                                    &drop_append_mode);
7413
7414       if (path == NULL)
7415         suggested_action = 0;
7416       else if (path_down_mode)
7417         gtk_tree_path_down (path);
7418
7419       if (suggested_action)
7420         {
7421           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7422                                                      path,
7423                                                      selection_data))
7424             {
7425               if (path_down_mode)
7426                 {
7427                   path_down_mode = FALSE;
7428                   gtk_tree_path_up (path);
7429
7430                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7431                                                              path,
7432                                                              selection_data))
7433                     suggested_action = 0;
7434                 }
7435               else
7436                 suggested_action = 0;
7437             }
7438         }
7439
7440       gdk_drag_status (context, suggested_action, time);
7441
7442       if (path)
7443         gtk_tree_path_free (path);
7444
7445       /* If you can't drop, remove user drop indicator until the next motion */
7446       if (suggested_action == 0)
7447         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7448                                          NULL,
7449                                          GTK_TREE_VIEW_DROP_BEFORE);
7450
7451       return;
7452     }
7453
7454   dest_row = get_dest_row (context, &path_down_mode);
7455
7456   if (dest_row == NULL)
7457     return;
7458
7459   if (selection_data->length >= 0)
7460     {
7461       if (path_down_mode)
7462         {
7463           gtk_tree_path_down (dest_row);
7464           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7465                                                      dest_row, selection_data))
7466             gtk_tree_path_up (dest_row);
7467         }
7468     }
7469
7470   if (selection_data->length >= 0)
7471     {
7472       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7473                                                  dest_row,
7474                                                  selection_data))
7475         accepted = TRUE;
7476     }
7477
7478   gtk_drag_finish (context,
7479                    accepted,
7480                    (context->action == GDK_ACTION_MOVE),
7481                    time);
7482
7483   if (gtk_tree_path_get_depth (dest_row) == 1
7484       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7485     {
7486       /* special special case drag to "0", scroll to first item */
7487       if (!tree_view->priv->scroll_to_path)
7488         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7489     }
7490
7491   gtk_tree_path_free (dest_row);
7492
7493   /* drop dest_row */
7494   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7495 }
7496
7497
7498
7499 /* GtkContainer Methods
7500  */
7501
7502
7503 static void
7504 gtk_tree_view_remove (GtkContainer *container,
7505                       GtkWidget    *widget)
7506 {
7507   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7508   GtkTreeViewChild *child = NULL;
7509   GList *tmp_list;
7510
7511   tmp_list = tree_view->priv->children;
7512   while (tmp_list)
7513     {
7514       child = tmp_list->data;
7515       if (child->widget == widget)
7516         {
7517           gtk_widget_unparent (widget);
7518
7519           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7520           g_list_free_1 (tmp_list);
7521           g_slice_free (GtkTreeViewChild, child);
7522           return;
7523         }
7524
7525       tmp_list = tmp_list->next;
7526     }
7527
7528   tmp_list = tree_view->priv->columns;
7529
7530   while (tmp_list)
7531     {
7532       GtkTreeViewColumn *column;
7533       column = tmp_list->data;
7534       if (column->button == widget)
7535         {
7536           gtk_widget_unparent (widget);
7537           return;
7538         }
7539       tmp_list = tmp_list->next;
7540     }
7541 }
7542
7543 static void
7544 gtk_tree_view_forall (GtkContainer *container,
7545                       gboolean      include_internals,
7546                       GtkCallback   callback,
7547                       gpointer      callback_data)
7548 {
7549   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7550   GtkTreeViewChild *child = NULL;
7551   GtkTreeViewColumn *column;
7552   GList *tmp_list;
7553
7554   tmp_list = tree_view->priv->children;
7555   while (tmp_list)
7556     {
7557       child = tmp_list->data;
7558       tmp_list = tmp_list->next;
7559
7560       (* callback) (child->widget, callback_data);
7561     }
7562   if (include_internals == FALSE)
7563     return;
7564
7565   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7566     {
7567       column = tmp_list->data;
7568
7569       if (column->button)
7570         (* callback) (column->button, callback_data);
7571     }
7572 }
7573
7574 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7575  * cells. If so we draw one big row-spanning focus rectangle.
7576  */
7577 static gboolean
7578 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7579 {
7580   GList *list;
7581
7582   for (list = tree_view->priv->columns; list; list = list->next)
7583     {
7584       if (!((GtkTreeViewColumn *)list->data)->visible)
7585         continue;
7586       if (_gtk_tree_view_column_count_special_cells (list->data))
7587         return TRUE;
7588     }
7589
7590   return FALSE;
7591 }
7592
7593 static void
7594 column_sizing_notify (GObject    *object,
7595                       GParamSpec *pspec,
7596                       gpointer    data)
7597 {
7598   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7599
7600   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7601     /* disable fixed height mode */
7602     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7603 }
7604
7605 /**
7606  * gtk_tree_view_set_fixed_height_mode:
7607  * @tree_view: a #GtkTreeView
7608  * @enable: %TRUE to enable fixed height mode
7609  *
7610  * Enables or disables the fixed height mode of @tree_view.
7611  * Fixed height mode speeds up #GtkTreeView by assuming that all
7612  * rows have the same height.
7613  * Only enable this option if all rows are the same height and all
7614  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7615  *
7616  * Since: 2.6
7617  **/
7618 void
7619 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7620                                      gboolean     enable)
7621 {
7622   GList *l;
7623
7624   enable = enable != FALSE;
7625
7626   if (enable == tree_view->priv->fixed_height_mode)
7627     return;
7628
7629   if (!enable)
7630     {
7631       tree_view->priv->fixed_height_mode = 0;
7632       tree_view->priv->fixed_height = -1;
7633
7634       /* force a revalidation */
7635       install_presize_handler (tree_view);
7636     }
7637   else
7638     {
7639       /* make sure all columns are of type FIXED */
7640       for (l = tree_view->priv->columns; l; l = l->next)
7641         {
7642           GtkTreeViewColumn *c = l->data;
7643
7644           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7645         }
7646
7647       /* yes, we really have to do this is in a separate loop */
7648       for (l = tree_view->priv->columns; l; l = l->next)
7649         g_signal_connect (l->data, "notify::sizing",
7650                           G_CALLBACK (column_sizing_notify), tree_view);
7651
7652       tree_view->priv->fixed_height_mode = 1;
7653       tree_view->priv->fixed_height = -1;
7654
7655       if (tree_view->priv->tree)
7656         initialize_fixed_height_mode (tree_view);
7657     }
7658
7659   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7660 }
7661
7662 /**
7663  * gtk_tree_view_get_fixed_height_mode:
7664  * @tree_view: a #GtkTreeView
7665  *
7666  * Returns whether fixed height mode is turned on for @tree_view.
7667  *
7668  * Return value: %TRUE if @tree_view is in fixed height mode
7669  *
7670  * Since: 2.6
7671  **/
7672 gboolean
7673 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7674 {
7675   return tree_view->priv->fixed_height_mode;
7676 }
7677
7678 /* Returns TRUE if the focus is within the headers, after the focus operation is
7679  * done
7680  */
7681 static gboolean
7682 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7683                             GtkDirectionType  dir,
7684                             gboolean          clamp_column_visible)
7685 {
7686   GtkWidget *focus_child;
7687
7688   GList *last_column, *first_column;
7689   GList *tmp_list;
7690   gboolean rtl;
7691
7692   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7693     return FALSE;
7694
7695   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7696
7697   first_column = tree_view->priv->columns;
7698   while (first_column)
7699     {
7700       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7701           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7702           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7703            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7704         break;
7705       first_column = first_column->next;
7706     }
7707
7708   /* No headers are visible, or are focusable.  We can't focus in or out.
7709    */
7710   if (first_column == NULL)
7711     return FALSE;
7712
7713   last_column = g_list_last (tree_view->priv->columns);
7714   while (last_column)
7715     {
7716       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7717           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7718           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7719            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7720         break;
7721       last_column = last_column->prev;
7722     }
7723
7724
7725   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7726
7727   switch (dir)
7728     {
7729     case GTK_DIR_TAB_BACKWARD:
7730     case GTK_DIR_TAB_FORWARD:
7731     case GTK_DIR_UP:
7732     case GTK_DIR_DOWN:
7733       if (focus_child == NULL)
7734         {
7735           if (tree_view->priv->focus_column != NULL && GTK_WIDGET_CAN_FOCUS (tree_view->priv->focus_column->button))
7736             focus_child = tree_view->priv->focus_column->button;
7737           else
7738             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7739           gtk_widget_grab_focus (focus_child);
7740           break;
7741         }
7742       return FALSE;
7743
7744     case GTK_DIR_LEFT:
7745     case GTK_DIR_RIGHT:
7746       if (focus_child == NULL)
7747         {
7748           if (tree_view->priv->focus_column != NULL)
7749             focus_child = tree_view->priv->focus_column->button;
7750           else if (dir == GTK_DIR_LEFT)
7751             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7752           else
7753             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7754           gtk_widget_grab_focus (focus_child);
7755           break;
7756         }
7757
7758       if (gtk_widget_child_focus (focus_child, dir))
7759         {
7760           /* The focus moves inside the button. */
7761           /* This is probably a great example of bad UI */
7762           break;
7763         }
7764
7765       /* We need to move the focus among the row of buttons. */
7766       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7767         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7768           break;
7769
7770       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7771           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7772         {
7773           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7774           break;
7775         }
7776
7777       while (tmp_list)
7778         {
7779           GtkTreeViewColumn *column;
7780
7781           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7782             tmp_list = tmp_list->next;
7783           else
7784             tmp_list = tmp_list->prev;
7785
7786           if (tmp_list == NULL)
7787             {
7788               g_warning ("Internal button not found");
7789               break;
7790             }
7791           column = tmp_list->data;
7792           if (column->button &&
7793               column->visible &&
7794               GTK_WIDGET_CAN_FOCUS (column->button))
7795             {
7796               focus_child = column->button;
7797               gtk_widget_grab_focus (column->button);
7798               break;
7799             }
7800         }
7801       break;
7802     default:
7803       g_assert_not_reached ();
7804       break;
7805     }
7806
7807   /* if focus child is non-null, we assume it's been set to the current focus child
7808    */
7809   if (focus_child)
7810     {
7811       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7812         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7813           {
7814             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7815             break;
7816           }
7817
7818       if (clamp_column_visible)
7819         {
7820           gtk_tree_view_clamp_column_visible (tree_view,
7821                                               tree_view->priv->focus_column,
7822                                               FALSE);
7823         }
7824     }
7825
7826   return (focus_child != NULL);
7827 }
7828
7829 /* This function returns in 'path' the first focusable path, if the given path
7830  * is already focusable, it's the returned one.
7831  */
7832 static gboolean
7833 search_first_focusable_path (GtkTreeView  *tree_view,
7834                              GtkTreePath **path,
7835                              gboolean      search_forward,
7836                              GtkRBTree   **new_tree,
7837                              GtkRBNode   **new_node)
7838 {
7839   GtkRBTree *tree = NULL;
7840   GtkRBNode *node = NULL;
7841
7842   if (!path || !*path)
7843     return FALSE;
7844
7845   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7846
7847   if (!tree || !node)
7848     return FALSE;
7849
7850   while (node && row_is_separator (tree_view, NULL, *path))
7851     {
7852       if (search_forward)
7853         _gtk_rbtree_next_full (tree, node, &tree, &node);
7854       else
7855         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7856
7857       if (*path)
7858         gtk_tree_path_free (*path);
7859
7860       if (node)
7861         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7862       else
7863         *path = NULL;
7864     }
7865
7866   if (new_tree)
7867     *new_tree = tree;
7868
7869   if (new_node)
7870     *new_node = node;
7871
7872   return (*path != NULL);
7873 }
7874
7875 static gint
7876 gtk_tree_view_focus (GtkWidget        *widget,
7877                      GtkDirectionType  direction)
7878 {
7879   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7880   GtkContainer *container = GTK_CONTAINER (widget);
7881   GtkWidget *focus_child;
7882
7883   if (!GTK_WIDGET_IS_SENSITIVE (container) || !GTK_WIDGET_CAN_FOCUS (widget))
7884     return FALSE;
7885
7886   focus_child = container->focus_child;
7887
7888   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7889   /* Case 1.  Headers currently have focus. */
7890   if (focus_child)
7891     {
7892       switch (direction)
7893         {
7894         case GTK_DIR_LEFT:
7895         case GTK_DIR_RIGHT:
7896           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7897           return TRUE;
7898         case GTK_DIR_TAB_BACKWARD:
7899         case GTK_DIR_UP:
7900           return FALSE;
7901         case GTK_DIR_TAB_FORWARD:
7902         case GTK_DIR_DOWN:
7903           gtk_widget_grab_focus (widget);
7904           return TRUE;
7905         default:
7906           g_assert_not_reached ();
7907           return FALSE;
7908         }
7909     }
7910
7911   /* Case 2. We don't have focus at all. */
7912   if (!GTK_WIDGET_HAS_FOCUS (container))
7913     {
7914       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7915         gtk_widget_grab_focus (widget);
7916       return TRUE;
7917     }
7918
7919   /* Case 3. We have focus already. */
7920   if (direction == GTK_DIR_TAB_BACKWARD)
7921     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7922   else if (direction == GTK_DIR_TAB_FORWARD)
7923     return FALSE;
7924
7925   /* Other directions caught by the keybindings */
7926   gtk_widget_grab_focus (widget);
7927   return TRUE;
7928 }
7929
7930 static void
7931 gtk_tree_view_grab_focus (GtkWidget *widget)
7932 {
7933   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
7934
7935   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7936 }
7937
7938 static void
7939 gtk_tree_view_style_set (GtkWidget *widget,
7940                          GtkStyle *previous_style)
7941 {
7942   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7943   GList *list;
7944   GtkTreeViewColumn *column;
7945
7946   if (GTK_WIDGET_REALIZED (widget))
7947     {
7948       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7949       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7950       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7951
7952       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7953       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7954     }
7955
7956   gtk_widget_style_get (widget,
7957                         "expander-size", &tree_view->priv->expander_size,
7958                         NULL);
7959   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7960
7961   for (list = tree_view->priv->columns; list; list = list->next)
7962     {
7963       column = list->data;
7964       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7965     }
7966
7967   tree_view->priv->fixed_height = -1;
7968   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7969
7970   gtk_widget_queue_resize (widget);
7971 }
7972
7973
7974 static void
7975 gtk_tree_view_set_focus_child (GtkContainer *container,
7976                                GtkWidget    *child)
7977 {
7978   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7979   GList *list;
7980
7981   for (list = tree_view->priv->columns; list; list = list->next)
7982     {
7983       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7984         {
7985           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7986           break;
7987         }
7988     }
7989
7990   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7991 }
7992
7993 static void
7994 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7995                                GtkAdjustment *hadj,
7996                                GtkAdjustment *vadj)
7997 {
7998   gboolean need_adjust = FALSE;
7999
8000   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8001
8002   if (hadj)
8003     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8004   else
8005     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8006   if (vadj)
8007     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8008   else
8009     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8010
8011   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8012     {
8013       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8014                                             gtk_tree_view_adjustment_changed,
8015                                             tree_view);
8016       g_object_unref (tree_view->priv->hadjustment);
8017     }
8018
8019   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8020     {
8021       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8022                                             gtk_tree_view_adjustment_changed,
8023                                             tree_view);
8024       g_object_unref (tree_view->priv->vadjustment);
8025     }
8026
8027   if (tree_view->priv->hadjustment != hadj)
8028     {
8029       tree_view->priv->hadjustment = hadj;
8030       g_object_ref_sink (tree_view->priv->hadjustment);
8031
8032       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8033                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8034                         tree_view);
8035       need_adjust = TRUE;
8036     }
8037
8038   if (tree_view->priv->vadjustment != vadj)
8039     {
8040       tree_view->priv->vadjustment = vadj;
8041       g_object_ref_sink (tree_view->priv->vadjustment);
8042
8043       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8044                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8045                         tree_view);
8046       need_adjust = TRUE;
8047     }
8048
8049   if (need_adjust)
8050     gtk_tree_view_adjustment_changed (NULL, tree_view);
8051 }
8052
8053
8054 static gboolean
8055 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8056                                 GtkMovementStep    step,
8057                                 gint               count)
8058 {
8059   GdkModifierType state;
8060
8061   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8062   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8063                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8064                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8065                         step == GTK_MOVEMENT_PAGES ||
8066                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8067
8068   if (tree_view->priv->tree == NULL)
8069     return FALSE;
8070   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8071     return FALSE;
8072
8073   gtk_tree_view_stop_editing (tree_view, FALSE);
8074   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8075   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8076
8077   if (gtk_get_current_event_state (&state))
8078     {
8079       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8080         tree_view->priv->ctrl_pressed = TRUE;
8081       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8082         tree_view->priv->shift_pressed = TRUE;
8083     }
8084   /* else we assume not pressed */
8085
8086   switch (step)
8087     {
8088       /* currently we make no distinction.  When we go bi-di, we need to */
8089     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8090     case GTK_MOVEMENT_VISUAL_POSITIONS:
8091       gtk_tree_view_move_cursor_left_right (tree_view, count);
8092       break;
8093     case GTK_MOVEMENT_DISPLAY_LINES:
8094       gtk_tree_view_move_cursor_up_down (tree_view, count);
8095       break;
8096     case GTK_MOVEMENT_PAGES:
8097       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8098       break;
8099     case GTK_MOVEMENT_BUFFER_ENDS:
8100       gtk_tree_view_move_cursor_start_end (tree_view, count);
8101       break;
8102     default:
8103       g_assert_not_reached ();
8104     }
8105
8106   tree_view->priv->ctrl_pressed = FALSE;
8107   tree_view->priv->shift_pressed = FALSE;
8108
8109   return TRUE;
8110 }
8111
8112 static void
8113 gtk_tree_view_put (GtkTreeView *tree_view,
8114                    GtkWidget   *child_widget,
8115                    /* in bin_window coordinates */
8116                    gint         x,
8117                    gint         y,
8118                    gint         width,
8119                    gint         height)
8120 {
8121   GtkTreeViewChild *child;
8122
8123   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8124   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8125
8126   child = g_slice_new (GtkTreeViewChild);
8127
8128   child->widget = child_widget;
8129   child->x = x;
8130   child->y = y;
8131   child->width = width;
8132   child->height = height;
8133
8134   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8135
8136   if (GTK_WIDGET_REALIZED (tree_view))
8137     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8138
8139   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8140 }
8141
8142 void
8143 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8144                                   GtkWidget   *widget,
8145                                   /* in tree coordinates */
8146                                   gint         x,
8147                                   gint         y,
8148                                   gint         width,
8149                                   gint         height)
8150 {
8151   GtkTreeViewChild *child = NULL;
8152   GList *list;
8153   GdkRectangle allocation;
8154
8155   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8156   g_return_if_fail (GTK_IS_WIDGET (widget));
8157
8158   for (list = tree_view->priv->children; list; list = list->next)
8159     {
8160       if (((GtkTreeViewChild *)list->data)->widget == widget)
8161         {
8162           child = list->data;
8163           break;
8164         }
8165     }
8166   if (child == NULL)
8167     return;
8168
8169   allocation.x = child->x = x;
8170   allocation.y = child->y = y;
8171   allocation.width = child->width = width;
8172   allocation.height = child->height = height;
8173
8174   if (GTK_WIDGET_REALIZED (widget))
8175     gtk_widget_size_allocate (widget, &allocation);
8176 }
8177
8178
8179 /* TreeModel Callbacks
8180  */
8181
8182 static void
8183 gtk_tree_view_row_changed (GtkTreeModel *model,
8184                            GtkTreePath  *path,
8185                            GtkTreeIter  *iter,
8186                            gpointer      data)
8187 {
8188   GtkTreeView *tree_view = (GtkTreeView *)data;
8189   GtkRBTree *tree;
8190   GtkRBNode *node;
8191   gboolean free_path = FALSE;
8192   GList *list;
8193   GtkTreePath *cursor_path;
8194
8195   g_return_if_fail (path != NULL || iter != NULL);
8196
8197   if (tree_view->priv->cursor != NULL)
8198     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8199   else
8200     cursor_path = NULL;
8201
8202   if (tree_view->priv->edited_column &&
8203       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8204     gtk_tree_view_stop_editing (tree_view, TRUE);
8205
8206   if (cursor_path != NULL)
8207     gtk_tree_path_free (cursor_path);
8208
8209   if (path == NULL)
8210     {
8211       path = gtk_tree_model_get_path (model, iter);
8212       free_path = TRUE;
8213     }
8214   else if (iter == NULL)
8215     gtk_tree_model_get_iter (model, iter, path);
8216
8217   if (_gtk_tree_view_find_node (tree_view,
8218                                 path,
8219                                 &tree,
8220                                 &node))
8221     /* We aren't actually showing the node */
8222     goto done;
8223
8224   if (tree == NULL)
8225     goto done;
8226
8227   if (tree_view->priv->fixed_height_mode
8228       && tree_view->priv->fixed_height >= 0)
8229     {
8230       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8231       if (GTK_WIDGET_REALIZED (tree_view))
8232         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8233     }
8234   else
8235     {
8236       _gtk_rbtree_node_mark_invalid (tree, node);
8237       for (list = tree_view->priv->columns; list; list = list->next)
8238         {
8239           GtkTreeViewColumn *column;
8240
8241           column = list->data;
8242           if (! column->visible)
8243             continue;
8244
8245           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8246             {
8247               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8248             }
8249         }
8250     }
8251
8252  done:
8253   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8254     install_presize_handler (tree_view);
8255   if (free_path)
8256     gtk_tree_path_free (path);
8257 }
8258
8259 static void
8260 gtk_tree_view_row_inserted (GtkTreeModel *model,
8261                             GtkTreePath  *path,
8262                             GtkTreeIter  *iter,
8263                             gpointer      data)
8264 {
8265   GtkTreeView *tree_view = (GtkTreeView *) data;
8266   gint *indices;
8267   GtkRBTree *tmptree, *tree;
8268   GtkRBNode *tmpnode = NULL;
8269   gint depth;
8270   gint i = 0;
8271   gint height;
8272   gboolean free_path = FALSE;
8273   gboolean node_visible = TRUE;
8274
8275   g_return_if_fail (path != NULL || iter != NULL);
8276
8277   if (tree_view->priv->fixed_height_mode
8278       && tree_view->priv->fixed_height >= 0)
8279     height = tree_view->priv->fixed_height;
8280   else
8281     height = 0;
8282
8283   if (path == NULL)
8284     {
8285       path = gtk_tree_model_get_path (model, iter);
8286       free_path = TRUE;
8287     }
8288   else if (iter == NULL)
8289     gtk_tree_model_get_iter (model, iter, path);
8290
8291   if (tree_view->priv->tree == NULL)
8292     tree_view->priv->tree = _gtk_rbtree_new ();
8293
8294   tmptree = tree = tree_view->priv->tree;
8295
8296   /* Update all row-references */
8297   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8298   depth = gtk_tree_path_get_depth (path);
8299   indices = gtk_tree_path_get_indices (path);
8300
8301   /* First, find the parent tree */
8302   while (i < depth - 1)
8303     {
8304       if (tmptree == NULL)
8305         {
8306           /* We aren't showing the node */
8307           node_visible = FALSE;
8308           goto done;
8309         }
8310
8311       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8312       if (tmpnode == NULL)
8313         {
8314           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8315                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8316                      "before the parent was inserted.");
8317           goto done;
8318         }
8319       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8320         {
8321           /* FIXME enforce correct behavior on model, probably */
8322           /* In theory, the model should have emitted has_child_toggled here.  We
8323            * try to catch it anyway, just to be safe, in case the model hasn't.
8324            */
8325           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8326                                                            tree,
8327                                                            tmpnode);
8328           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8329           gtk_tree_path_free (tmppath);
8330           goto done;
8331         }
8332
8333       tmptree = tmpnode->children;
8334       tree = tmptree;
8335       i++;
8336     }
8337
8338   if (tree == NULL)
8339     {
8340       node_visible = FALSE;
8341       goto done;
8342     }
8343
8344   /* ref the node */
8345   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8346   if (indices[depth - 1] == 0)
8347     {
8348       tmpnode = _gtk_rbtree_find_count (tree, 1);
8349       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8350     }
8351   else
8352     {
8353       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8354       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8355     }
8356
8357  done:
8358   if (height > 0)
8359     {
8360       if (tree)
8361         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8362
8363       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8364         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8365       else
8366         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8367     }
8368   else
8369     install_presize_handler (tree_view);
8370   if (free_path)
8371     gtk_tree_path_free (path);
8372 }
8373
8374 static void
8375 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8376                                      GtkTreePath  *path,
8377                                      GtkTreeIter  *iter,
8378                                      gpointer      data)
8379 {
8380   GtkTreeView *tree_view = (GtkTreeView *)data;
8381   GtkTreeIter real_iter;
8382   gboolean has_child;
8383   GtkRBTree *tree;
8384   GtkRBNode *node;
8385   gboolean free_path = FALSE;
8386
8387   g_return_if_fail (path != NULL || iter != NULL);
8388
8389   if (iter)
8390     real_iter = *iter;
8391
8392   if (path == NULL)
8393     {
8394       path = gtk_tree_model_get_path (model, iter);
8395       free_path = TRUE;
8396     }
8397   else if (iter == NULL)
8398     gtk_tree_model_get_iter (model, &real_iter, path);
8399
8400   if (_gtk_tree_view_find_node (tree_view,
8401                                 path,
8402                                 &tree,
8403                                 &node))
8404     /* We aren't actually showing the node */
8405     goto done;
8406
8407   if (tree == NULL)
8408     goto done;
8409
8410   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8411   /* Sanity check.
8412    */
8413   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8414     goto done;
8415
8416   if (has_child)
8417     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8418   else
8419     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8420
8421   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8422     {
8423       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8424       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8425         {
8426           GList *list;
8427
8428           for (list = tree_view->priv->columns; list; list = list->next)
8429             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8430               {
8431                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8432                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8433                 break;
8434               }
8435         }
8436       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8437     }
8438   else
8439     {
8440       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8441     }
8442
8443  done:
8444   if (free_path)
8445     gtk_tree_path_free (path);
8446 }
8447
8448 static void
8449 count_children_helper (GtkRBTree *tree,
8450                        GtkRBNode *node,
8451                        gpointer   data)
8452 {
8453   if (node->children)
8454     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8455   (*((gint *)data))++;
8456 }
8457
8458 static void
8459 check_selection_helper (GtkRBTree *tree,
8460                         GtkRBNode *node,
8461                         gpointer   data)
8462 {
8463   gint *value = (gint *)data;
8464
8465   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8466
8467   if (node->children && !*value)
8468     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8469 }
8470
8471 static void
8472 gtk_tree_view_row_deleted (GtkTreeModel *model,
8473                            GtkTreePath  *path,
8474                            gpointer      data)
8475 {
8476   GtkTreeView *tree_view = (GtkTreeView *)data;
8477   GtkRBTree *tree;
8478   GtkRBNode *node;
8479   GList *list;
8480   gint selection_changed = FALSE;
8481
8482   g_return_if_fail (path != NULL);
8483
8484   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8485
8486   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8487     return;
8488
8489   if (tree == NULL)
8490     return;
8491
8492   /* check if the selection has been changed */
8493   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8494                         check_selection_helper, &selection_changed);
8495
8496   for (list = tree_view->priv->columns; list; list = list->next)
8497     if (((GtkTreeViewColumn *)list->data)->visible &&
8498         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8499       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8500
8501   /* Ensure we don't have a dangling pointer to a dead node */
8502   ensure_unprelighted (tree_view);
8503
8504   /* Cancel editting if we've started */
8505   gtk_tree_view_stop_editing (tree_view, TRUE);
8506
8507   /* If we have a node expanded/collapsed timeout, remove it */
8508   remove_expand_collapse_timeout (tree_view);
8509
8510   if (tree_view->priv->destroy_count_func)
8511     {
8512       gint child_count = 0;
8513       if (node->children)
8514         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8515       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8516     }
8517
8518   if (tree->root->count == 1)
8519     {
8520       if (tree_view->priv->tree == tree)
8521         tree_view->priv->tree = NULL;
8522
8523       _gtk_rbtree_remove (tree);
8524     }
8525   else
8526     {
8527       _gtk_rbtree_remove_node (tree, node);
8528     }
8529
8530   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8531     {
8532       gtk_tree_row_reference_free (tree_view->priv->top_row);
8533       tree_view->priv->top_row = NULL;
8534     }
8535
8536   install_scroll_sync_handler (tree_view);
8537
8538   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8539
8540   if (selection_changed)
8541     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8542 }
8543
8544 static void
8545 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8546                               GtkTreePath  *parent,
8547                               GtkTreeIter  *iter,
8548                               gint         *new_order,
8549                               gpointer      data)
8550 {
8551   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8552   GtkRBTree *tree;
8553   GtkRBNode *node;
8554   gint len;
8555
8556   len = gtk_tree_model_iter_n_children (model, iter);
8557
8558   if (len < 2)
8559     return;
8560
8561   gtk_tree_row_reference_reordered (G_OBJECT (data),
8562                                     parent,
8563                                     iter,
8564                                     new_order);
8565
8566   if (_gtk_tree_view_find_node (tree_view,
8567                                 parent,
8568                                 &tree,
8569                                 &node))
8570     return;
8571
8572   /* We need to special case the parent path */
8573   if (tree == NULL)
8574     tree = tree_view->priv->tree;
8575   else
8576     tree = node->children;
8577
8578   if (tree == NULL)
8579     return;
8580
8581   if (tree_view->priv->edited_column)
8582     gtk_tree_view_stop_editing (tree_view, TRUE);
8583
8584   /* we need to be unprelighted */
8585   ensure_unprelighted (tree_view);
8586
8587   /* clear the timeout */
8588   cancel_arrow_animation (tree_view);
8589
8590   _gtk_rbtree_reorder (tree, new_order, len);
8591
8592   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8593
8594   gtk_tree_view_dy_to_top_row (tree_view);
8595 }
8596
8597
8598 /* Internal tree functions
8599  */
8600
8601
8602 static void
8603 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8604                                      GtkRBTree         *tree,
8605                                      GtkTreeViewColumn *column,
8606                                      gint              *x1,
8607                                      gint              *x2)
8608 {
8609   GtkTreeViewColumn *tmp_column = NULL;
8610   gint total_width;
8611   GList *list;
8612   gboolean rtl;
8613
8614   if (x1)
8615     *x1 = 0;
8616
8617   if (x2)
8618     *x2 = 0;
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 (tmp_column == column)
8630         break;
8631
8632       if (tmp_column->visible)
8633         total_width += tmp_column->width;
8634     }
8635
8636   if (tmp_column != column)
8637     {
8638       g_warning (G_STRLOC": passed-in column isn't in the tree");
8639       return;
8640     }
8641
8642   if (x1)
8643     *x1 = total_width;
8644
8645   if (x2)
8646     {
8647       if (column->visible)
8648         *x2 = total_width + column->width;
8649       else
8650         *x2 = total_width; /* width of 0 */
8651     }
8652 }
8653 static void
8654 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8655                                 GtkRBTree   *tree,
8656                                 gint        *x1,
8657                                 gint        *x2)
8658 {
8659   gint x_offset = 0;
8660   GList *list;
8661   GtkTreeViewColumn *tmp_column = NULL;
8662   gint total_width;
8663   gboolean indent_expanders;
8664   gboolean rtl;
8665
8666   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8667
8668   total_width = 0;
8669   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8670        list;
8671        list = (rtl ? list->prev : list->next))
8672     {
8673       tmp_column = list->data;
8674
8675       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8676         {
8677           if (rtl)
8678             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8679           else
8680             x_offset = total_width;
8681           break;
8682         }
8683
8684       if (tmp_column->visible)
8685         total_width += tmp_column->width;
8686     }
8687
8688   gtk_widget_style_get (GTK_WIDGET (tree_view),
8689                         "indent-expanders", &indent_expanders,
8690                         NULL);
8691
8692   if (indent_expanders)
8693     {
8694       if (rtl)
8695         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8696       else
8697         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8698     }
8699
8700   *x1 = x_offset;
8701
8702   if (tmp_column && tmp_column->visible)
8703     /* +1 because x2 isn't included in the range. */
8704     *x2 = *x1 + tree_view->priv->expander_size + 1;
8705   else
8706     *x2 = *x1;
8707 }
8708
8709 static void
8710 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8711                           GtkRBTree   *tree,
8712                           GtkTreeIter *iter,
8713                           gint         depth,
8714                           gboolean     recurse)
8715 {
8716   GtkRBNode *temp = NULL;
8717   GtkTreePath *path = NULL;
8718   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8719
8720   do
8721     {
8722       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8723       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8724
8725       if (tree_view->priv->fixed_height > 0)
8726         {
8727           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8728             {
8729               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8730               _gtk_rbtree_node_mark_valid (tree, temp);
8731             }
8732         }
8733
8734       if (is_list)
8735         continue;
8736
8737       if (recurse)
8738         {
8739           GtkTreeIter child;
8740
8741           if (!path)
8742             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8743           else
8744             gtk_tree_path_next (path);
8745
8746           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8747             {
8748               gboolean expand;
8749
8750               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8751
8752               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8753                   && !expand)
8754                 {
8755                   temp->children = _gtk_rbtree_new ();
8756                   temp->children->parent_tree = tree;
8757                   temp->children->parent_node = temp;
8758                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8759                 }
8760             }
8761         }
8762
8763       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8764         {
8765           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8766             temp->flags ^= GTK_RBNODE_IS_PARENT;
8767         }
8768     }
8769   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8770
8771   if (path)
8772     gtk_tree_path_free (path);
8773 }
8774
8775 /* Make sure the node is visible vertically */
8776 static void
8777 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8778                                   GtkRBTree   *tree,
8779                                   GtkRBNode   *node)
8780 {
8781   gint node_dy, height;
8782   GtkTreePath *path = NULL;
8783
8784   if (!GTK_WIDGET_REALIZED (tree_view))
8785     return;
8786
8787   /* just return if the node is visible, avoiding a costly expose */
8788   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8789   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8790   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8791       && node_dy >= tree_view->priv->vadjustment->value
8792       && node_dy + height <= (tree_view->priv->vadjustment->value
8793                               + tree_view->priv->vadjustment->page_size))
8794     return;
8795
8796   path = _gtk_tree_view_find_path (tree_view, tree, node);
8797   if (path)
8798     {
8799       /* We process updates because we want to clear old selected items when we scroll.
8800        * if this is removed, we get a "selection streak" at the bottom. */
8801       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8802       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8803       gtk_tree_path_free (path);
8804     }
8805 }
8806
8807 static void
8808 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8809                                     GtkTreeViewColumn *column,
8810                                     gboolean           focus_to_cell)
8811 {
8812   gint x, width;
8813
8814   if (column == NULL)
8815     return;
8816
8817   x = column->button->allocation.x;
8818   width = column->button->allocation.width;
8819
8820   if (width > tree_view->priv->hadjustment->page_size)
8821     {
8822       /* The column is larger than the horizontal page size.  If the
8823        * column has cells which can be focussed individually, then we make
8824        * sure the cell which gets focus is fully visible (if even the
8825        * focus cell is bigger than the page size, we make sure the
8826        * left-hand side of the cell is visible).
8827        *
8828        * If the column does not have those so-called special cells, we
8829        * make sure the left-hand side of the column is visible.
8830        */
8831
8832       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8833         {
8834           GtkTreePath *cursor_path;
8835           GdkRectangle background_area, cell_area, focus_area;
8836
8837           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8838
8839           gtk_tree_view_get_cell_area (tree_view,
8840                                        cursor_path, column, &cell_area);
8841           gtk_tree_view_get_background_area (tree_view,
8842                                              cursor_path, column,
8843                                              &background_area);
8844
8845           gtk_tree_path_free (cursor_path);
8846
8847           _gtk_tree_view_column_get_focus_area (column,
8848                                                 &background_area,
8849                                                 &cell_area,
8850                                                 &focus_area);
8851
8852           x = focus_area.x;
8853           width = focus_area.width;
8854
8855           if (width < tree_view->priv->hadjustment->page_size)
8856             {
8857               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8858                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8859                                           x + width - tree_view->priv->hadjustment->page_size);
8860               else if (tree_view->priv->hadjustment->value > x)
8861                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8862             }
8863         }
8864
8865       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8866                                 CLAMP (x,
8867                                        tree_view->priv->hadjustment->lower,
8868                                        tree_view->priv->hadjustment->upper
8869                                        - tree_view->priv->hadjustment->page_size));
8870     }
8871   else
8872     {
8873       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8874           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8875                                     x + width - tree_view->priv->hadjustment->page_size);
8876       else if (tree_view->priv->hadjustment->value > x)
8877         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8878   }
8879 }
8880
8881 /* This function could be more efficient.  I'll optimize it if profiling seems
8882  * to imply that it is important */
8883 GtkTreePath *
8884 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8885                           GtkRBTree   *tree,
8886                           GtkRBNode   *node)
8887 {
8888   GtkTreePath *path;
8889   GtkRBTree *tmp_tree;
8890   GtkRBNode *tmp_node, *last;
8891   gint count;
8892
8893   path = gtk_tree_path_new ();
8894
8895   g_return_val_if_fail (node != NULL, path);
8896   g_return_val_if_fail (node != tree->nil, path);
8897
8898   count = 1 + node->left->count;
8899
8900   last = node;
8901   tmp_node = node->parent;
8902   tmp_tree = tree;
8903   while (tmp_tree)
8904     {
8905       while (tmp_node != tmp_tree->nil)
8906         {
8907           if (tmp_node->right == last)
8908             count += 1 + tmp_node->left->count;
8909           last = tmp_node;
8910           tmp_node = tmp_node->parent;
8911         }
8912       gtk_tree_path_prepend_index (path, count - 1);
8913       last = tmp_tree->parent_node;
8914       tmp_tree = tmp_tree->parent_tree;
8915       if (last)
8916         {
8917           count = 1 + last->left->count;
8918           tmp_node = last->parent;
8919         }
8920     }
8921   return path;
8922 }
8923
8924 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8925  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8926  * both set to NULL.
8927  */
8928 gboolean
8929 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
8930                           GtkTreePath  *path,
8931                           GtkRBTree   **tree,
8932                           GtkRBNode   **node)
8933 {
8934   GtkRBNode *tmpnode = NULL;
8935   GtkRBTree *tmptree = tree_view->priv->tree;
8936   gint *indices = gtk_tree_path_get_indices (path);
8937   gint depth = gtk_tree_path_get_depth (path);
8938   gint i = 0;
8939
8940   *node = NULL;
8941   *tree = NULL;
8942
8943   if (depth == 0 || tmptree == NULL)
8944     return FALSE;
8945   do
8946     {
8947       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8948       ++i;
8949       if (tmpnode == NULL)
8950         {
8951           *tree = NULL;
8952           *node = NULL;
8953           return FALSE;
8954         }
8955       if (i >= depth)
8956         {
8957           *tree = tmptree;
8958           *node = tmpnode;
8959           return FALSE;
8960         }
8961       *tree = tmptree;
8962       *node = tmpnode;
8963       tmptree = tmpnode->children;
8964       if (tmptree == NULL)
8965         return TRUE;
8966     }
8967   while (1);
8968 }
8969
8970 static gboolean
8971 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
8972                                   GtkTreeViewColumn *column)
8973 {
8974   GList *list;
8975
8976   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8977     return FALSE;
8978
8979   if (tree_view->priv->expander_column != NULL)
8980     {
8981       if (tree_view->priv->expander_column == column)
8982         return TRUE;
8983       return FALSE;
8984     }
8985   else
8986     {
8987       for (list = tree_view->priv->columns;
8988            list;
8989            list = list->next)
8990         if (((GtkTreeViewColumn *)list->data)->visible)
8991           break;
8992       if (list && list->data == column)
8993         return TRUE;
8994     }
8995   return FALSE;
8996 }
8997
8998 static void
8999 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9000                                 guint           keyval,
9001                                 guint           modmask,
9002                                 gboolean        add_shifted_binding,
9003                                 GtkMovementStep step,
9004                                 gint            count)
9005 {
9006
9007   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9008                                 "move-cursor", 2,
9009                                 G_TYPE_ENUM, step,
9010                                 G_TYPE_INT, count);
9011
9012   if (add_shifted_binding)
9013     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9014                                   "move-cursor", 2,
9015                                   G_TYPE_ENUM, step,
9016                                   G_TYPE_INT, count);
9017
9018   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9019    return;
9020
9021   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9022                                 "move-cursor", 2,
9023                                 G_TYPE_ENUM, step,
9024                                 G_TYPE_INT, count);
9025
9026   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9027                                 "move-cursor", 2,
9028                                 G_TYPE_ENUM, step,
9029                                 G_TYPE_INT, count);
9030 }
9031
9032 static gint
9033 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9034                                  GtkTreeIter  *iter,
9035                                  GtkRBTree    *tree,
9036                                  GtkRBNode    *node)
9037 {
9038   gint retval = FALSE;
9039   do
9040     {
9041       g_return_val_if_fail (node != NULL, FALSE);
9042
9043       if (node->children)
9044         {
9045           GtkTreeIter child;
9046           GtkRBTree *new_tree;
9047           GtkRBNode *new_node;
9048
9049           new_tree = node->children;
9050           new_node = new_tree->root;
9051
9052           while (new_node && new_node->left != new_tree->nil)
9053             new_node = new_node->left;
9054
9055           if (!gtk_tree_model_iter_children (model, &child, iter))
9056             return FALSE;
9057
9058           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9059         }
9060
9061       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9062         retval = TRUE;
9063       gtk_tree_model_unref_node (model, iter);
9064       node = _gtk_rbtree_next (tree, node);
9065     }
9066   while (gtk_tree_model_iter_next (model, iter));
9067
9068   return retval;
9069 }
9070
9071 static gint
9072 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9073                                               GtkRBTree   *tree)
9074 {
9075   GtkTreeIter iter;
9076   GtkTreePath *path;
9077   GtkRBNode *node;
9078   gint retval;
9079
9080   if (!tree)
9081     return FALSE;
9082
9083   node = tree->root;
9084   while (node && node->left != tree->nil)
9085     node = node->left;
9086
9087   g_return_val_if_fail (node != NULL, FALSE);
9088   path = _gtk_tree_view_find_path (tree_view, tree, node);
9089   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9090                            &iter, path);
9091   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9092   gtk_tree_path_free (path);
9093
9094   return retval;
9095 }
9096
9097 static void
9098 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9099                                     GtkTreeViewColumn *column)
9100 {
9101   GtkTreeViewColumn *left_column;
9102   GtkTreeViewColumn *cur_column = NULL;
9103   GtkTreeViewColumnReorder *reorder;
9104   gboolean rtl;
9105   GList *tmp_list;
9106   gint left;
9107
9108   /* We want to precalculate the motion list such that we know what column slots
9109    * are available.
9110    */
9111   left_column = NULL;
9112   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9113
9114   /* First, identify all possible drop spots */
9115   if (rtl)
9116     tmp_list = g_list_last (tree_view->priv->columns);
9117   else
9118     tmp_list = g_list_first (tree_view->priv->columns);
9119
9120   while (tmp_list)
9121     {
9122       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9123       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9124
9125       if (cur_column->visible == FALSE)
9126         continue;
9127
9128       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9129       if (left_column != column && cur_column != column &&
9130           tree_view->priv->column_drop_func &&
9131           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9132         {
9133           left_column = cur_column;
9134           continue;
9135         }
9136       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9137       reorder->left_column = left_column;
9138       left_column = reorder->right_column = cur_column;
9139
9140       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9141     }
9142
9143   /* Add the last one */
9144   if (tree_view->priv->column_drop_func == NULL ||
9145       ((left_column != column) &&
9146        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9147     {
9148       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9149       reorder->left_column = left_column;
9150       reorder->right_column = NULL;
9151       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9152     }
9153
9154   /* We quickly check to see if it even makes sense to reorder columns. */
9155   /* If there is nothing that can be moved, then we return */
9156
9157   if (tree_view->priv->column_drag_info == NULL)
9158     return;
9159
9160   /* We know there are always 2 slots possbile, as you can always return column. */
9161   /* If that's all there is, return */
9162   if (tree_view->priv->column_drag_info->next == NULL ||
9163       (tree_view->priv->column_drag_info->next->next == NULL &&
9164        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9165        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9166     {
9167       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9168         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9169       g_list_free (tree_view->priv->column_drag_info);
9170       tree_view->priv->column_drag_info = NULL;
9171       return;
9172     }
9173   /* We fill in the ranges for the columns, now that we've isolated them */
9174   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9175
9176   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9177     {
9178       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9179
9180       reorder->left_align = left;
9181       if (tmp_list->next != NULL)
9182         {
9183           g_assert (tmp_list->next->data);
9184           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9185                                          reorder->right_column->button->allocation.width +
9186                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9187         }
9188       else
9189         {
9190           gint width;
9191
9192           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9193           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9194         }
9195     }
9196 }
9197
9198 void
9199 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9200                                   GtkTreeViewColumn *column)
9201 {
9202   GdkEvent *send_event;
9203   GtkAllocation allocation;
9204   gint x, y, width, height;
9205   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9206   GdkDisplay *display = gdk_screen_get_display (screen);
9207
9208   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9209   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9210
9211   gtk_tree_view_set_column_drag_info (tree_view, column);
9212
9213   if (tree_view->priv->column_drag_info == NULL)
9214     return;
9215
9216   if (tree_view->priv->drag_window == NULL)
9217     {
9218       GdkWindowAttr attributes;
9219       guint attributes_mask;
9220
9221       attributes.window_type = GDK_WINDOW_CHILD;
9222       attributes.wclass = GDK_INPUT_OUTPUT;
9223       attributes.x = column->button->allocation.x;
9224       attributes.y = 0;
9225       attributes.width = column->button->allocation.width;
9226       attributes.height = column->button->allocation.height;
9227       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9228       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9229       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9230       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9231
9232       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9233                                                      &attributes,
9234                                                      attributes_mask);
9235       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9236     }
9237
9238   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9239   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9240
9241   gtk_grab_remove (column->button);
9242
9243   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9244   send_event->crossing.send_event = TRUE;
9245   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9246   send_event->crossing.subwindow = NULL;
9247   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9248   send_event->crossing.time = GDK_CURRENT_TIME;
9249
9250   gtk_propagate_event (column->button, send_event);
9251   gdk_event_free (send_event);
9252
9253   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9254   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9255   send_event->button.send_event = TRUE;
9256   send_event->button.time = GDK_CURRENT_TIME;
9257   send_event->button.x = -1;
9258   send_event->button.y = -1;
9259   send_event->button.axes = NULL;
9260   send_event->button.state = 0;
9261   send_event->button.button = 1;
9262   send_event->button.device = gdk_display_get_core_pointer (display);
9263   send_event->button.x_root = 0;
9264   send_event->button.y_root = 0;
9265
9266   gtk_propagate_event (column->button, send_event);
9267   gdk_event_free (send_event);
9268
9269   /* Kids, don't try this at home */
9270   g_object_ref (column->button);
9271   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9272   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9273   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9274   g_object_unref (column->button);
9275
9276   tree_view->priv->drag_column_x = column->button->allocation.x;
9277   allocation = column->button->allocation;
9278   allocation.x = 0;
9279   gtk_widget_size_allocate (column->button, &allocation);
9280   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9281
9282   tree_view->priv->drag_column = column;
9283   gdk_window_show (tree_view->priv->drag_window);
9284
9285   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9286   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9287
9288   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9289   while (gtk_events_pending ())
9290     gtk_main_iteration ();
9291
9292   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9293   gdk_pointer_grab (tree_view->priv->drag_window,
9294                     FALSE,
9295                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9296                     NULL, NULL, GDK_CURRENT_TIME);
9297   gdk_keyboard_grab (tree_view->priv->drag_window,
9298                      FALSE,
9299                      GDK_CURRENT_TIME);
9300 }
9301
9302 static void
9303 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9304                                 GtkRBTree          *tree,
9305                                 GtkRBNode          *node,
9306                                 const GdkRectangle *clip_rect)
9307 {
9308   GdkRectangle rect;
9309
9310   if (!GTK_WIDGET_REALIZED (tree_view))
9311     return;
9312
9313   rect.x = 0;
9314   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9315
9316   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9317   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9318
9319   if (clip_rect)
9320     {
9321       GdkRectangle new_rect;
9322
9323       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9324
9325       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9326     }
9327   else
9328     {
9329       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9330     }
9331 }
9332
9333 void
9334 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9335                                 GtkRBTree          *tree,
9336                                 GtkRBNode          *node,
9337                                 const GdkRectangle *clip_rect)
9338 {
9339   GdkRectangle rect;
9340
9341   if (!GTK_WIDGET_REALIZED (tree_view))
9342     return;
9343
9344   rect.x = 0;
9345   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9346
9347   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9348   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9349
9350   if (clip_rect)
9351     {
9352       GdkRectangle new_rect;
9353
9354       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9355
9356       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9357     }
9358   else
9359     {
9360       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9361     }
9362 }
9363
9364 static void
9365 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9366                                GtkTreePath        *path,
9367                                const GdkRectangle *clip_rect)
9368 {
9369   GtkRBTree *tree = NULL;
9370   GtkRBNode *node = NULL;
9371
9372   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9373
9374   if (tree)
9375     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9376 }
9377
9378 /* x and y are the mouse position
9379  */
9380 static void
9381 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9382                           GtkRBTree   *tree,
9383                           GtkRBNode   *node,
9384                           /* in bin_window coordinates */
9385                           gint         x,
9386                           gint         y)
9387 {
9388   GdkRectangle area;
9389   GtkStateType state;
9390   GtkWidget *widget;
9391   gint x_offset = 0;
9392   gint x2;
9393   gint vertical_separator;
9394   gint expander_size;
9395   GtkExpanderStyle expander_style;
9396
9397   gtk_widget_style_get (GTK_WIDGET (tree_view),
9398                         "vertical-separator", &vertical_separator,
9399                         NULL);
9400   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9401
9402   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9403     return;
9404
9405   widget = GTK_WIDGET (tree_view);
9406
9407   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9408
9409   area.x = x_offset;
9410   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9411   area.width = expander_size + 2;
9412   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9413
9414   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9415     {
9416       state = GTK_STATE_INSENSITIVE;
9417     }
9418   else if (node == tree_view->priv->button_pressed_node)
9419     {
9420       if (x >= area.x && x <= (area.x + area.width) &&
9421           y >= area.y && y <= (area.y + area.height))
9422         state = GTK_STATE_ACTIVE;
9423       else
9424         state = GTK_STATE_NORMAL;
9425     }
9426   else
9427     {
9428       if (node == tree_view->priv->prelight_node &&
9429           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9430         state = GTK_STATE_PRELIGHT;
9431       else
9432         state = GTK_STATE_NORMAL;
9433     }
9434
9435   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9436     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9437   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9438     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9439   else if (node->children != NULL)
9440     expander_style = GTK_EXPANDER_EXPANDED;
9441   else
9442     expander_style = GTK_EXPANDER_COLLAPSED;
9443
9444   gtk_paint_expander (widget->style,
9445                       tree_view->priv->bin_window,
9446                       state,
9447                       &area,
9448                       widget,
9449                       "treeview",
9450                       area.x + area.width / 2,
9451                       area.y + area.height / 2,
9452                       expander_style);
9453 }
9454
9455 static void
9456 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9457
9458 {
9459   GtkTreePath *cursor_path;
9460
9461   if ((tree_view->priv->tree == NULL) ||
9462       (! GTK_WIDGET_REALIZED (tree_view)))
9463     return;
9464
9465   cursor_path = NULL;
9466   if (tree_view->priv->cursor)
9467     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9468
9469   if (cursor_path == NULL)
9470     {
9471       /* Consult the selection before defaulting to the
9472        * first focusable element
9473        */
9474       GList *selected_rows;
9475       GtkTreeModel *model;
9476       GtkTreeSelection *selection;
9477
9478       selection = gtk_tree_view_get_selection (tree_view);
9479       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9480
9481       if (selected_rows)
9482         {
9483           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9484           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9485           g_list_free (selected_rows);
9486         }
9487       else
9488         {
9489           cursor_path = gtk_tree_path_new_first ();
9490           search_first_focusable_path (tree_view, &cursor_path,
9491                                        TRUE, NULL, NULL);
9492         }
9493
9494       gtk_tree_row_reference_free (tree_view->priv->cursor);
9495       tree_view->priv->cursor = NULL;
9496
9497       if (cursor_path)
9498         {
9499           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9500             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9501           else
9502             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9503         }
9504     }
9505
9506   if (cursor_path)
9507     {
9508       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9509
9510       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9511       gtk_tree_path_free (cursor_path);
9512
9513       if (tree_view->priv->focus_column == NULL)
9514         {
9515           GList *list;
9516           for (list = tree_view->priv->columns; list; list = list->next)
9517             {
9518               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9519                 {
9520                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9521                   break;
9522                 }
9523             }
9524         }
9525     }
9526 }
9527
9528 static void
9529 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9530                                    gint         count)
9531 {
9532   gint selection_count;
9533   GtkRBTree *cursor_tree = NULL;
9534   GtkRBNode *cursor_node = NULL;
9535   GtkRBTree *new_cursor_tree = NULL;
9536   GtkRBNode *new_cursor_node = NULL;
9537   GtkTreePath *cursor_path = NULL;
9538   gboolean grab_focus = TRUE;
9539   gboolean selectable;
9540
9541   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9542     return;
9543
9544   cursor_path = NULL;
9545   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9546     /* FIXME: we lost the cursor; should we get the first? */
9547     return;
9548
9549   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9550   _gtk_tree_view_find_node (tree_view, cursor_path,
9551                             &cursor_tree, &cursor_node);
9552
9553   if (cursor_tree == NULL)
9554     /* FIXME: we lost the cursor; should we get the first? */
9555     return;
9556
9557   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9558   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9559                                                       cursor_node,
9560                                                       cursor_path);
9561
9562   if (selection_count == 0
9563       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9564       && !tree_view->priv->ctrl_pressed
9565       && selectable)
9566     {
9567       /* Don't move the cursor, but just select the current node */
9568       new_cursor_tree = cursor_tree;
9569       new_cursor_node = cursor_node;
9570     }
9571   else
9572     {
9573       if (count == -1)
9574         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9575                                &new_cursor_tree, &new_cursor_node);
9576       else
9577         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9578                                &new_cursor_tree, &new_cursor_node);
9579     }
9580
9581   gtk_tree_path_free (cursor_path);
9582
9583   if (new_cursor_node)
9584     {
9585       cursor_path = _gtk_tree_view_find_path (tree_view,
9586                                               new_cursor_tree, new_cursor_node);
9587
9588       search_first_focusable_path (tree_view, &cursor_path,
9589                                    (count != -1),
9590                                    &new_cursor_tree,
9591                                    &new_cursor_node);
9592
9593       if (cursor_path)
9594         gtk_tree_path_free (cursor_path);
9595     }
9596
9597   /*
9598    * If the list has only one item and multi-selection is set then select
9599    * the row (if not yet selected).
9600    */
9601   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9602       new_cursor_node == NULL)
9603     {
9604       if (count == -1)
9605         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9606                                &new_cursor_tree, &new_cursor_node);
9607       else
9608         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9609                                &new_cursor_tree, &new_cursor_node);
9610
9611       if (new_cursor_node == NULL
9612           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9613         {
9614           new_cursor_node = cursor_node;
9615           new_cursor_tree = cursor_tree;
9616         }
9617       else
9618         {
9619           new_cursor_node = NULL;
9620         }
9621     }
9622
9623   if (new_cursor_node)
9624     {
9625       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9626       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9627       gtk_tree_path_free (cursor_path);
9628     }
9629   else
9630     {
9631       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9632
9633       if (!tree_view->priv->shift_pressed)
9634         {
9635           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9636                                           count < 0 ?
9637                                           GTK_DIR_UP : GTK_DIR_DOWN))
9638             {
9639               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9640
9641               if (toplevel)
9642                 gtk_widget_child_focus (toplevel,
9643                                         count < 0 ?
9644                                         GTK_DIR_TAB_BACKWARD :
9645                                         GTK_DIR_TAB_FORWARD);
9646
9647               grab_focus = FALSE;
9648             }
9649         }
9650       else
9651         {
9652           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9653         }
9654     }
9655
9656   if (grab_focus)
9657     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9658 }
9659
9660 static void
9661 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9662                                         gint         count)
9663 {
9664   GtkRBTree *cursor_tree = NULL;
9665   GtkRBNode *cursor_node = NULL;
9666   GtkTreePath *old_cursor_path = NULL;
9667   GtkTreePath *cursor_path = NULL;
9668   GtkRBTree *start_cursor_tree = NULL;
9669   GtkRBNode *start_cursor_node = NULL;
9670   gint y;
9671   gint window_y;
9672   gint vertical_separator;
9673
9674   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9675     return;
9676
9677   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9678     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9679   else
9680     /* This is sorta weird.  Focus in should give us a cursor */
9681     return;
9682
9683   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9684   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9685                             &cursor_tree, &cursor_node);
9686
9687   if (cursor_tree == NULL)
9688     {
9689       /* FIXME: we lost the cursor.  Should we try to get one? */
9690       gtk_tree_path_free (old_cursor_path);
9691       return;
9692     }
9693   g_return_if_fail (cursor_node != NULL);
9694
9695   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9696   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9697   y += tree_view->priv->cursor_offset;
9698   y += count * (int)tree_view->priv->vadjustment->page_increment;
9699   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9700
9701   if (y >= tree_view->priv->height)
9702     y = tree_view->priv->height - 1;
9703
9704   tree_view->priv->cursor_offset =
9705     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9706                              &cursor_tree, &cursor_node);
9707
9708   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9709     {
9710       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9711                              &cursor_tree, &cursor_node);
9712       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9713     }
9714
9715   y -= tree_view->priv->cursor_offset;
9716   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9717
9718   start_cursor_tree = cursor_tree;
9719   start_cursor_node = cursor_node;
9720
9721   if (! search_first_focusable_path (tree_view, &cursor_path,
9722                                      (count != -1),
9723                                      &cursor_tree, &cursor_node))
9724     {
9725       /* It looks like we reached the end of the view without finding
9726        * a focusable row.  We will step backwards to find the last
9727        * focusable row.
9728        */
9729       cursor_tree = start_cursor_tree;
9730       cursor_node = start_cursor_node;
9731       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9732
9733       search_first_focusable_path (tree_view, &cursor_path,
9734                                    (count == -1),
9735                                    &cursor_tree, &cursor_node);
9736     }
9737
9738   if (!cursor_path)
9739     goto cleanup;
9740
9741   /* update y */
9742   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9743
9744   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9745
9746   y -= window_y;
9747   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9748   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9749   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9750
9751   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9752     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9753
9754   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9755
9756 cleanup:
9757   gtk_tree_path_free (old_cursor_path);
9758   gtk_tree_path_free (cursor_path);
9759 }
9760
9761 static void
9762 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9763                                       gint         count)
9764 {
9765   GtkRBTree *cursor_tree = NULL;
9766   GtkRBNode *cursor_node = NULL;
9767   GtkTreePath *cursor_path = NULL;
9768   GtkTreeViewColumn *column;
9769   GtkTreeIter iter;
9770   GList *list;
9771   gboolean found_column = FALSE;
9772   gboolean rtl;
9773
9774   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9775
9776   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9777     return;
9778
9779   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9780     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9781   else
9782     return;
9783
9784   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9785   if (cursor_tree == NULL)
9786     return;
9787   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9788     {
9789       gtk_tree_path_free (cursor_path);
9790       return;
9791     }
9792   gtk_tree_path_free (cursor_path);
9793
9794   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9795   if (tree_view->priv->focus_column)
9796     {
9797       for (; list; list = (rtl ? list->prev : list->next))
9798         {
9799           if (list->data == tree_view->priv->focus_column)
9800             break;
9801         }
9802     }
9803
9804   while (list)
9805     {
9806       gboolean left, right;
9807
9808       column = list->data;
9809       if (column->visible == FALSE)
9810         goto loop_end;
9811
9812       gtk_tree_view_column_cell_set_cell_data (column,
9813                                                tree_view->priv->model,
9814                                                &iter,
9815                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9816                                                cursor_node->children?TRUE:FALSE);
9817
9818       if (rtl)
9819         {
9820           right = list->prev ? TRUE : FALSE;
9821           left = list->next ? TRUE : FALSE;
9822         }
9823       else
9824         {
9825           left = list->prev ? TRUE : FALSE;
9826           right = list->next ? TRUE : FALSE;
9827         }
9828
9829       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9830         {
9831           tree_view->priv->focus_column = column;
9832           found_column = TRUE;
9833           break;
9834         }
9835     loop_end:
9836       if (count == 1)
9837         list = rtl ? list->prev : list->next;
9838       else
9839         list = rtl ? list->next : list->prev;
9840     }
9841
9842   if (found_column)
9843     {
9844       if (!gtk_tree_view_has_special_cell (tree_view))
9845         _gtk_tree_view_queue_draw_node (tree_view,
9846                                         cursor_tree,
9847                                         cursor_node,
9848                                         NULL);
9849       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9850       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9851     }
9852   else
9853     {
9854       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9855     }
9856
9857   gtk_tree_view_clamp_column_visible (tree_view,
9858                                       tree_view->priv->focus_column, TRUE);
9859 }
9860
9861 static void
9862 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9863                                      gint         count)
9864 {
9865   GtkRBTree *cursor_tree;
9866   GtkRBNode *cursor_node;
9867   GtkTreePath *path;
9868   GtkTreePath *old_path;
9869
9870   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9871     return;
9872
9873   g_return_if_fail (tree_view->priv->tree != NULL);
9874
9875   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9876
9877   cursor_tree = tree_view->priv->tree;
9878   cursor_node = cursor_tree->root;
9879
9880   if (count == -1)
9881     {
9882       while (cursor_node && cursor_node->left != cursor_tree->nil)
9883         cursor_node = cursor_node->left;
9884
9885       /* Now go forward to find the first focusable row. */
9886       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9887       search_first_focusable_path (tree_view, &path,
9888                                    TRUE, &cursor_tree, &cursor_node);
9889     }
9890   else
9891     {
9892       do
9893         {
9894           while (cursor_node && cursor_node->right != cursor_tree->nil)
9895             cursor_node = cursor_node->right;
9896           if (cursor_node->children == NULL)
9897             break;
9898
9899           cursor_tree = cursor_node->children;
9900           cursor_node = cursor_tree->root;
9901         }
9902       while (1);
9903
9904       /* Now go backwards to find last focusable row. */
9905       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9906       search_first_focusable_path (tree_view, &path,
9907                                    FALSE, &cursor_tree, &cursor_node);
9908     }
9909
9910   if (!path)
9911     goto cleanup;
9912
9913   if (gtk_tree_path_compare (old_path, path))
9914     {
9915       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9916       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9917     }
9918   else
9919     {
9920       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9921     }
9922
9923 cleanup:
9924   gtk_tree_path_free (old_path);
9925   gtk_tree_path_free (path);
9926 }
9927
9928 static gboolean
9929 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
9930 {
9931   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9932     return FALSE;
9933
9934   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9935     return FALSE;
9936
9937   gtk_tree_selection_select_all (tree_view->priv->selection);
9938
9939   return TRUE;
9940 }
9941
9942 static gboolean
9943 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
9944 {
9945   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9946     return FALSE;
9947
9948   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9949     return FALSE;
9950
9951   gtk_tree_selection_unselect_all (tree_view->priv->selection);
9952
9953   return TRUE;
9954 }
9955
9956 static gboolean
9957 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
9958                                       gboolean     start_editing)
9959 {
9960   GtkRBTree *new_tree = NULL;
9961   GtkRBNode *new_node = NULL;
9962   GtkRBTree *cursor_tree = NULL;
9963   GtkRBNode *cursor_node = NULL;
9964   GtkTreePath *cursor_path = NULL;
9965   GtkTreeSelectMode mode = 0;
9966
9967   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9968     return FALSE;
9969
9970   if (tree_view->priv->cursor)
9971     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9972
9973   if (cursor_path == NULL)
9974     return FALSE;
9975
9976   _gtk_tree_view_find_node (tree_view, cursor_path,
9977                             &cursor_tree, &cursor_node);
9978
9979   if (cursor_tree == NULL)
9980     {
9981       gtk_tree_path_free (cursor_path);
9982       return FALSE;
9983     }
9984
9985   if (!tree_view->priv->shift_pressed && start_editing &&
9986       tree_view->priv->focus_column)
9987     {
9988       if (gtk_tree_view_start_editing (tree_view, cursor_path))
9989         {
9990           gtk_tree_path_free (cursor_path);
9991           return TRUE;
9992         }
9993     }
9994
9995   if (tree_view->priv->ctrl_pressed)
9996     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
9997   if (tree_view->priv->shift_pressed)
9998     mode |= GTK_TREE_SELECT_MODE_EXTEND;
9999
10000   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10001                                             cursor_node,
10002                                             cursor_tree,
10003                                             cursor_path,
10004                                             mode,
10005                                             FALSE);
10006
10007   /* We bail out if the original (tree, node) don't exist anymore after
10008    * handling the selection-changed callback.  We do return TRUE because
10009    * the key press has been handled at this point.
10010    */
10011   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10012
10013   if (cursor_tree != new_tree || cursor_node != new_node)
10014     return FALSE;
10015
10016   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10017
10018   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10019   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10020
10021   if (!tree_view->priv->shift_pressed)
10022     gtk_tree_view_row_activated (tree_view, cursor_path,
10023                                  tree_view->priv->focus_column);
10024
10025   gtk_tree_path_free (cursor_path);
10026
10027   return TRUE;
10028 }
10029
10030 static gboolean
10031 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10032 {
10033   GtkRBTree *new_tree = NULL;
10034   GtkRBNode *new_node = NULL;
10035   GtkRBTree *cursor_tree = NULL;
10036   GtkRBNode *cursor_node = NULL;
10037   GtkTreePath *cursor_path = NULL;
10038
10039   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10040     return FALSE;
10041
10042   cursor_path = NULL;
10043   if (tree_view->priv->cursor)
10044     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10045
10046   if (cursor_path == NULL)
10047     return FALSE;
10048
10049   _gtk_tree_view_find_node (tree_view, cursor_path,
10050                             &cursor_tree, &cursor_node);
10051   if (cursor_tree == NULL)
10052     {
10053       gtk_tree_path_free (cursor_path);
10054       return FALSE;
10055     }
10056
10057   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10058                                             cursor_node,
10059                                             cursor_tree,
10060                                             cursor_path,
10061                                             GTK_TREE_SELECT_MODE_TOGGLE,
10062                                             FALSE);
10063
10064   /* We bail out if the original (tree, node) don't exist anymore after
10065    * handling the selection-changed callback.  We do return TRUE because
10066    * the key press has been handled at this point.
10067    */
10068   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10069
10070   if (cursor_tree != new_tree || cursor_node != new_node)
10071     return FALSE;
10072
10073   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10074
10075   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10076   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10077   gtk_tree_path_free (cursor_path);
10078
10079   return TRUE;
10080 }
10081
10082 static gboolean
10083 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10084                                                gboolean     logical,
10085                                                gboolean     expand,
10086                                                gboolean     open_all)
10087 {
10088   GtkTreePath *cursor_path = NULL;
10089   GtkRBTree *tree;
10090   GtkRBNode *node;
10091
10092   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10093     return FALSE;
10094
10095   cursor_path = NULL;
10096   if (tree_view->priv->cursor)
10097     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10098
10099   if (cursor_path == NULL)
10100     return FALSE;
10101
10102   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10103     return FALSE;
10104
10105   /* Don't handle the event if we aren't an expander */
10106   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10107     return FALSE;
10108
10109   if (!logical
10110       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10111     expand = !expand;
10112
10113   if (expand)
10114     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10115   else
10116     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10117
10118   gtk_tree_path_free (cursor_path);
10119
10120   return TRUE;
10121 }
10122
10123 static gboolean
10124 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10125 {
10126   GtkRBTree *cursor_tree = NULL;
10127   GtkRBNode *cursor_node = NULL;
10128   GtkTreePath *cursor_path = NULL;
10129   GdkModifierType state;
10130
10131   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10132     goto out;
10133
10134   cursor_path = NULL;
10135   if (tree_view->priv->cursor)
10136     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10137
10138   if (cursor_path == NULL)
10139     goto out;
10140
10141   _gtk_tree_view_find_node (tree_view, cursor_path,
10142                             &cursor_tree, &cursor_node);
10143   if (cursor_tree == NULL)
10144     {
10145       gtk_tree_path_free (cursor_path);
10146       goto out;
10147     }
10148
10149   if (cursor_tree->parent_node)
10150     {
10151       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10152       cursor_node = cursor_tree->parent_node;
10153       cursor_tree = cursor_tree->parent_tree;
10154
10155       gtk_tree_path_up (cursor_path);
10156
10157       if (gtk_get_current_event_state (&state))
10158         {
10159           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10160             tree_view->priv->ctrl_pressed = TRUE;
10161         }
10162
10163       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10164       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10165
10166       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10167       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10168       gtk_tree_path_free (cursor_path);
10169
10170       tree_view->priv->ctrl_pressed = FALSE;
10171
10172       return TRUE;
10173     }
10174
10175  out:
10176
10177   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10178   return FALSE;
10179 }
10180
10181 static gboolean
10182 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10183 {
10184   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10185   tree_view->priv->typeselect_flush_timeout = 0;
10186
10187   return FALSE;
10188 }
10189
10190 /* Cut and paste from gtkwindow.c */
10191 static void
10192 send_focus_change (GtkWidget *widget,
10193                    gboolean   in)
10194 {
10195   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10196
10197   g_object_ref (widget);
10198
10199  if (in)
10200     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10201   else
10202     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10203
10204   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10205   fevent->focus_change.window = g_object_ref (widget->window);
10206   fevent->focus_change.in = in;
10207
10208   gtk_widget_event (widget, fevent);
10209
10210   g_object_notify (G_OBJECT (widget), "has-focus");
10211
10212   g_object_unref (widget);
10213   gdk_event_free (fevent);
10214 }
10215
10216 static void
10217 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10218 {
10219   GtkWidget *frame, *vbox, *toplevel;
10220   GdkScreen *screen;
10221
10222   if (tree_view->priv->search_custom_entry_set)
10223     return;
10224
10225   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10226   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10227
10228    if (tree_view->priv->search_window != NULL)
10229      {
10230        if (GTK_WINDOW (toplevel)->group)
10231          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10232                                       GTK_WINDOW (tree_view->priv->search_window));
10233        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10234          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10235                                          GTK_WINDOW (tree_view->priv->search_window));
10236        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10237        return;
10238      }
10239
10240   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10241   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10242
10243   if (GTK_WINDOW (toplevel)->group)
10244     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10245                                  GTK_WINDOW (tree_view->priv->search_window));
10246
10247   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10248                             GDK_WINDOW_TYPE_HINT_UTILITY);
10249   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10250   g_signal_connect (tree_view->priv->search_window, "delete-event",
10251                     G_CALLBACK (gtk_tree_view_search_delete_event),
10252                     tree_view);
10253   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10254                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10255                     tree_view);
10256   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10257                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10258                     tree_view);
10259   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10260                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10261                     tree_view);
10262
10263   frame = gtk_frame_new (NULL);
10264   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10265   gtk_widget_show (frame);
10266   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10267
10268   vbox = gtk_vbox_new (FALSE, 0);
10269   gtk_widget_show (vbox);
10270   gtk_container_add (GTK_CONTAINER (frame), vbox);
10271   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10272
10273   /* add entry */
10274   tree_view->priv->search_entry = gtk_entry_new ();
10275   gtk_widget_show (tree_view->priv->search_entry);
10276   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10277                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10278                     tree_view);
10279   g_signal_connect (tree_view->priv->search_entry,
10280                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10281                     tree_view);
10282   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10283                     "preedit-changed",
10284                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10285                     tree_view);
10286   gtk_container_add (GTK_CONTAINER (vbox),
10287                      tree_view->priv->search_entry);
10288
10289   gtk_widget_realize (tree_view->priv->search_entry);
10290 }
10291
10292 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10293  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10294  */
10295 static gboolean
10296 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10297                                              gboolean     keybinding)
10298 {
10299   /* We only start interactive search if we have focus or the columns
10300    * have focus.  If one of our children have focus, we don't want to
10301    * start the search.
10302    */
10303   GList *list;
10304   gboolean found_focus = FALSE;
10305   GtkWidgetClass *entry_parent_class;
10306
10307   if (!tree_view->priv->enable_search && !keybinding)
10308     return FALSE;
10309
10310   if (tree_view->priv->search_custom_entry_set)
10311     return FALSE;
10312
10313   if (tree_view->priv->search_window != NULL &&
10314       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10315     return TRUE;
10316
10317   for (list = tree_view->priv->columns; list; list = list->next)
10318     {
10319       GtkTreeViewColumn *column;
10320
10321       column = list->data;
10322       if (! column->visible)
10323         continue;
10324
10325       if (GTK_WIDGET_HAS_FOCUS (column->button))
10326         {
10327           found_focus = TRUE;
10328           break;
10329         }
10330     }
10331
10332   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10333     found_focus = TRUE;
10334
10335   if (!found_focus)
10336     return FALSE;
10337
10338   if (tree_view->priv->search_column < 0)
10339     return FALSE;
10340
10341   gtk_tree_view_ensure_interactive_directory (tree_view);
10342
10343   if (keybinding)
10344     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10345
10346   /* done, show it */
10347   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10348   gtk_widget_show (tree_view->priv->search_window);
10349   if (tree_view->priv->search_entry_changed_id == 0)
10350     {
10351       tree_view->priv->search_entry_changed_id =
10352         g_signal_connect (tree_view->priv->search_entry, "changed",
10353                           G_CALLBACK (gtk_tree_view_search_init),
10354                           tree_view);
10355     }
10356
10357   tree_view->priv->typeselect_flush_timeout =
10358     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10359                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10360                    tree_view);
10361
10362   /* Grab focus will select all the text.  We don't want that to happen, so we
10363    * call the parent instance and bypass the selection change.  This is probably
10364    * really non-kosher. */
10365   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10366   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10367
10368   /* send focus-in event */
10369   send_focus_change (tree_view->priv->search_entry, TRUE);
10370
10371   /* search first matching iter */
10372   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10373
10374   return TRUE;
10375 }
10376
10377 static gboolean
10378 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10379 {
10380   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10381 }
10382
10383 /* this function returns the new width of the column being resized given
10384  * the column and x position of the cursor; the x cursor position is passed
10385  * in as a pointer and automagicly corrected if it's beyond min/max limits
10386  */
10387 static gint
10388 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10389                                 gint       i,
10390                                 gint      *x)
10391 {
10392   GtkTreeViewColumn *column;
10393   gint width;
10394   gboolean rtl;
10395
10396   /* first translate the x position from widget->window
10397    * to clist->clist_window
10398    */
10399   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10400   column = g_list_nth (tree_view->priv->columns, i)->data;
10401   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10402
10403   /* Clamp down the value */
10404   if (column->min_width == -1)
10405     width = MAX (column->button->requisition.width,
10406                  width);
10407   else
10408     width = MAX (column->min_width,
10409                  width);
10410   if (column->max_width != -1)
10411     width = MIN (width, column->max_width);
10412
10413   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10414
10415   return width;
10416 }
10417
10418
10419 /* FIXME this adjust_allocation is a big cut-and-paste from
10420  * GtkCList, needs to be some "official" way to do this
10421  * factored out.
10422  */
10423 typedef struct
10424 {
10425   GdkWindow *window;
10426   int dx;
10427   int dy;
10428 } ScrollData;
10429
10430 /* The window to which widget->window is relative */
10431 #define ALLOCATION_WINDOW(widget)               \
10432    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10433     (widget)->window :                          \
10434      gdk_window_get_parent ((widget)->window))
10435
10436 static void
10437 adjust_allocation_recurse (GtkWidget *widget,
10438                            gpointer   data)
10439 {
10440   ScrollData *scroll_data = data;
10441
10442   /* Need to really size allocate instead of just poking
10443    * into widget->allocation if the widget is not realized.
10444    * FIXME someone figure out why this was.
10445    */
10446   if (!GTK_WIDGET_REALIZED (widget))
10447     {
10448       if (GTK_WIDGET_VISIBLE (widget))
10449         {
10450           GdkRectangle tmp_rectangle = widget->allocation;
10451           tmp_rectangle.x += scroll_data->dx;
10452           tmp_rectangle.y += scroll_data->dy;
10453
10454           gtk_widget_size_allocate (widget, &tmp_rectangle);
10455         }
10456     }
10457   else
10458     {
10459       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10460         {
10461           widget->allocation.x += scroll_data->dx;
10462           widget->allocation.y += scroll_data->dy;
10463
10464           if (GTK_IS_CONTAINER (widget))
10465             gtk_container_forall (GTK_CONTAINER (widget),
10466                                   adjust_allocation_recurse,
10467                                   data);
10468         }
10469     }
10470 }
10471
10472 static void
10473 adjust_allocation (GtkWidget *widget,
10474                    int        dx,
10475                    int        dy)
10476 {
10477   ScrollData scroll_data;
10478
10479   if (GTK_WIDGET_REALIZED (widget))
10480     scroll_data.window = ALLOCATION_WINDOW (widget);
10481   else
10482     scroll_data.window = NULL;
10483
10484   scroll_data.dx = dx;
10485   scroll_data.dy = dy;
10486
10487   adjust_allocation_recurse (widget, &scroll_data);
10488 }
10489
10490 /* Callbacks */
10491 static void
10492 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10493                                   GtkTreeView   *tree_view)
10494 {
10495   if (GTK_WIDGET_REALIZED (tree_view))
10496     {
10497       gint dy;
10498
10499       gdk_window_move (tree_view->priv->bin_window,
10500                        - tree_view->priv->hadjustment->value,
10501                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10502       gdk_window_move (tree_view->priv->header_window,
10503                        - tree_view->priv->hadjustment->value,
10504                        0);
10505       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10506       if (dy && tree_view->priv->edited_column)
10507         {
10508           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10509             {
10510               GList *list;
10511               GtkWidget *widget;
10512               GtkTreeViewChild *child = NULL;
10513
10514               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10515               adjust_allocation (widget, 0, dy);
10516
10517               for (list = tree_view->priv->children; list; list = list->next)
10518                 {
10519                   child = (GtkTreeViewChild *)list->data;
10520                   if (child->widget == widget)
10521                     {
10522                       child->y += dy;
10523                       break;
10524                     }
10525                 }
10526             }
10527         }
10528       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10529
10530       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10531         {
10532           /* update our dy and top_row */
10533           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10534
10535           if (!tree_view->priv->in_top_row_to_dy)
10536             gtk_tree_view_dy_to_top_row (tree_view);
10537         }
10538
10539       gdk_window_process_updates (tree_view->priv->header_window, TRUE);
10540       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
10541     }
10542 }
10543
10544 \f
10545
10546 /* Public methods
10547  */
10548
10549 /**
10550  * gtk_tree_view_new:
10551  *
10552  * Creates a new #GtkTreeView widget.
10553  *
10554  * Return value: A newly created #GtkTreeView widget.
10555  **/
10556 GtkWidget *
10557 gtk_tree_view_new (void)
10558 {
10559   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10560 }
10561
10562 /**
10563  * gtk_tree_view_new_with_model:
10564  * @model: the model.
10565  *
10566  * Creates a new #GtkTreeView widget with the model initialized to @model.
10567  *
10568  * Return value: A newly created #GtkTreeView widget.
10569  **/
10570 GtkWidget *
10571 gtk_tree_view_new_with_model (GtkTreeModel *model)
10572 {
10573   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10574 }
10575
10576 /* Public Accessors
10577  */
10578
10579 /**
10580  * gtk_tree_view_get_model:
10581  * @tree_view: a #GtkTreeView
10582  *
10583  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10584  * model is unset.
10585  *
10586  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10587  **/
10588 GtkTreeModel *
10589 gtk_tree_view_get_model (GtkTreeView *tree_view)
10590 {
10591   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10592
10593   return tree_view->priv->model;
10594 }
10595
10596 /**
10597  * gtk_tree_view_set_model:
10598  * @tree_view: A #GtkTreeNode.
10599  * @model: The model.
10600  *
10601  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10602  * set, it will remove it before setting the new model.  If @model is %NULL,
10603  * then it will unset the old model.
10604  **/
10605 void
10606 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10607                          GtkTreeModel *model)
10608 {
10609   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10610   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10611
10612   if (model == tree_view->priv->model)
10613     return;
10614
10615   if (tree_view->priv->scroll_to_path)
10616     {
10617       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10618       tree_view->priv->scroll_to_path = NULL;
10619     }
10620
10621   if (tree_view->priv->model)
10622     {
10623       GList *tmplist = tree_view->priv->columns;
10624
10625       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10626       gtk_tree_view_stop_editing (tree_view, TRUE);
10627
10628       remove_expand_collapse_timeout (tree_view);
10629
10630       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10631                                             gtk_tree_view_row_changed,
10632                                             tree_view);
10633       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10634                                             gtk_tree_view_row_inserted,
10635                                             tree_view);
10636       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10637                                             gtk_tree_view_row_has_child_toggled,
10638                                             tree_view);
10639       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10640                                             gtk_tree_view_row_deleted,
10641                                             tree_view);
10642       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10643                                             gtk_tree_view_rows_reordered,
10644                                             tree_view);
10645
10646       for (; tmplist; tmplist = tmplist->next)
10647         _gtk_tree_view_column_unset_model (tmplist->data,
10648                                            tree_view->priv->model);
10649
10650       if (tree_view->priv->tree)
10651         gtk_tree_view_free_rbtree (tree_view);
10652
10653       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10654       tree_view->priv->drag_dest_row = NULL;
10655       gtk_tree_row_reference_free (tree_view->priv->cursor);
10656       tree_view->priv->cursor = NULL;
10657       gtk_tree_row_reference_free (tree_view->priv->anchor);
10658       tree_view->priv->anchor = NULL;
10659       gtk_tree_row_reference_free (tree_view->priv->top_row);
10660       tree_view->priv->top_row = NULL;
10661       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10662       tree_view->priv->last_button_press = NULL;
10663       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10664       tree_view->priv->last_button_press_2 = NULL;
10665       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10666       tree_view->priv->scroll_to_path = NULL;
10667
10668       tree_view->priv->scroll_to_column = NULL;
10669
10670       g_object_unref (tree_view->priv->model);
10671
10672       tree_view->priv->search_column = -1;
10673       tree_view->priv->fixed_height_check = 0;
10674       tree_view->priv->fixed_height = -1;
10675       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10676     }
10677
10678   tree_view->priv->model = model;
10679
10680   if (tree_view->priv->model)
10681     {
10682       gint i;
10683       GtkTreePath *path;
10684       GtkTreeIter iter;
10685       GtkTreeModelFlags flags;
10686
10687       if (tree_view->priv->search_column == -1)
10688         {
10689           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10690             {
10691               GType type = gtk_tree_model_get_column_type (model, i);
10692
10693               if (g_value_type_transformable (type, G_TYPE_STRING))
10694                 {
10695                   tree_view->priv->search_column = i;
10696                   break;
10697                 }
10698             }
10699         }
10700
10701       g_object_ref (tree_view->priv->model);
10702       g_signal_connect (tree_view->priv->model,
10703                         "row-changed",
10704                         G_CALLBACK (gtk_tree_view_row_changed),
10705                         tree_view);
10706       g_signal_connect (tree_view->priv->model,
10707                         "row-inserted",
10708                         G_CALLBACK (gtk_tree_view_row_inserted),
10709                         tree_view);
10710       g_signal_connect (tree_view->priv->model,
10711                         "row-has-child-toggled",
10712                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10713                         tree_view);
10714       g_signal_connect (tree_view->priv->model,
10715                         "row-deleted",
10716                         G_CALLBACK (gtk_tree_view_row_deleted),
10717                         tree_view);
10718       g_signal_connect (tree_view->priv->model,
10719                         "rows-reordered",
10720                         G_CALLBACK (gtk_tree_view_rows_reordered),
10721                         tree_view);
10722
10723       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10724       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10725         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10726       else
10727         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10728
10729       path = gtk_tree_path_new_first ();
10730       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10731         {
10732           tree_view->priv->tree = _gtk_rbtree_new ();
10733           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10734         }
10735       gtk_tree_path_free (path);
10736
10737       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10738       install_presize_handler (tree_view);
10739     }
10740
10741   g_object_notify (G_OBJECT (tree_view), "model");
10742
10743   if (tree_view->priv->selection)
10744   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10745
10746   if (GTK_WIDGET_REALIZED (tree_view))
10747     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10748 }
10749
10750 /**
10751  * gtk_tree_view_get_selection:
10752  * @tree_view: A #GtkTreeView.
10753  *
10754  * Gets the #GtkTreeSelection associated with @tree_view.
10755  *
10756  * Return value: A #GtkTreeSelection object.
10757  **/
10758 GtkTreeSelection *
10759 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10760 {
10761   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10762
10763   return tree_view->priv->selection;
10764 }
10765
10766 /**
10767  * gtk_tree_view_get_hadjustment:
10768  * @tree_view: A #GtkTreeView
10769  *
10770  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10771  *
10772  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10773  * used.
10774  **/
10775 GtkAdjustment *
10776 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10777 {
10778   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10779
10780   if (tree_view->priv->hadjustment == NULL)
10781     gtk_tree_view_set_hadjustment (tree_view, NULL);
10782
10783   return tree_view->priv->hadjustment;
10784 }
10785
10786 /**
10787  * gtk_tree_view_set_hadjustment:
10788  * @tree_view: A #GtkTreeView
10789  * @adjustment: The #GtkAdjustment to set, or %NULL
10790  *
10791  * Sets the #GtkAdjustment for the current horizontal aspect.
10792  **/
10793 void
10794 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10795                                GtkAdjustment *adjustment)
10796 {
10797   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10798
10799   gtk_tree_view_set_adjustments (tree_view,
10800                                  adjustment,
10801                                  tree_view->priv->vadjustment);
10802
10803   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10804 }
10805
10806 /**
10807  * gtk_tree_view_get_vadjustment:
10808  * @tree_view: A #GtkTreeView
10809  *
10810  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10811  *
10812  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10813  * used.
10814  **/
10815 GtkAdjustment *
10816 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10817 {
10818   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10819
10820   if (tree_view->priv->vadjustment == NULL)
10821     gtk_tree_view_set_vadjustment (tree_view, NULL);
10822
10823   return tree_view->priv->vadjustment;
10824 }
10825
10826 /**
10827  * gtk_tree_view_set_vadjustment:
10828  * @tree_view: A #GtkTreeView
10829  * @adjustment: The #GtkAdjustment to set, or %NULL
10830  *
10831  * Sets the #GtkAdjustment for the current vertical aspect.
10832  **/
10833 void
10834 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10835                                GtkAdjustment *adjustment)
10836 {
10837   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10838
10839   gtk_tree_view_set_adjustments (tree_view,
10840                                  tree_view->priv->hadjustment,
10841                                  adjustment);
10842
10843   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10844 }
10845
10846 /* Column and header operations */
10847
10848 /**
10849  * gtk_tree_view_get_headers_visible:
10850  * @tree_view: A #GtkTreeView.
10851  *
10852  * Returns %TRUE if the headers on the @tree_view are visible.
10853  *
10854  * Return value: Whether the headers are visible or not.
10855  **/
10856 gboolean
10857 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10858 {
10859   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10860
10861   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10862 }
10863
10864 /**
10865  * gtk_tree_view_set_headers_visible:
10866  * @tree_view: A #GtkTreeView.
10867  * @headers_visible: %TRUE if the headers are visible
10868  *
10869  * Sets the visibility state of the headers.
10870  **/
10871 void
10872 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10873                                    gboolean     headers_visible)
10874 {
10875   gint x, y;
10876   GList *list;
10877   GtkTreeViewColumn *column;
10878
10879   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10880
10881   headers_visible = !! headers_visible;
10882
10883   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10884     return;
10885
10886   if (headers_visible)
10887     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10888   else
10889     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10890
10891   if (GTK_WIDGET_REALIZED (tree_view))
10892     {
10893       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10894       if (headers_visible)
10895         {
10896           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));
10897
10898           if (GTK_WIDGET_MAPPED (tree_view))
10899             gtk_tree_view_map_buttons (tree_view);
10900         }
10901       else
10902         {
10903           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10904
10905           for (list = tree_view->priv->columns; list; list = list->next)
10906             {
10907               column = list->data;
10908               gtk_widget_unmap (column->button);
10909             }
10910           gdk_window_hide (tree_view->priv->header_window);
10911         }
10912     }
10913
10914   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10915   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10916   tree_view->priv->vadjustment->lower = 0;
10917   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10918   gtk_adjustment_changed (tree_view->priv->vadjustment);
10919
10920   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10921
10922   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10923 }
10924
10925 /**
10926  * gtk_tree_view_columns_autosize:
10927  * @tree_view: A #GtkTreeView.
10928  *
10929  * Resizes all columns to their optimal width. Only works after the
10930  * treeview has been realized.
10931  **/
10932 void
10933 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
10934 {
10935   gboolean dirty = FALSE;
10936   GList *list;
10937   GtkTreeViewColumn *column;
10938
10939   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10940
10941   for (list = tree_view->priv->columns; list; list = list->next)
10942     {
10943       column = list->data;
10944       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
10945         continue;
10946       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
10947       dirty = TRUE;
10948     }
10949
10950   if (dirty)
10951     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10952 }
10953
10954 /**
10955  * gtk_tree_view_set_headers_clickable:
10956  * @tree_view: A #GtkTreeView.
10957  * @setting: %TRUE if the columns are clickable.
10958  *
10959  * Allow the column title buttons to be clicked.
10960  **/
10961 void
10962 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
10963                                      gboolean   setting)
10964 {
10965   GList *list;
10966
10967   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10968
10969   for (list = tree_view->priv->columns; list; list = list->next)
10970     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
10971
10972   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
10973 }
10974
10975
10976 /**
10977  * gtk_tree_view_get_headers_clickable:
10978  * @tree_view: A #GtkTreeView.
10979  *
10980  * Returns whether all header columns are clickable.
10981  *
10982  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
10983  *
10984  * Since: 2.10
10985  **/
10986 gboolean
10987 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
10988 {
10989   GList *list;
10990
10991   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10992
10993   for (list = tree_view->priv->columns; list; list = list->next)
10994     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
10995       return FALSE;
10996
10997   return TRUE;
10998 }
10999
11000 /**
11001  * gtk_tree_view_set_rules_hint
11002  * @tree_view: a #GtkTreeView
11003  * @setting: %TRUE if the tree requires reading across rows
11004  *
11005  * This function tells GTK+ that the user interface for your
11006  * application requires users to read across tree rows and associate
11007  * cells with one another. By default, GTK+ will then render the tree
11008  * with alternating row colors. Do <emphasis>not</emphasis> use it
11009  * just because you prefer the appearance of the ruled tree; that's a
11010  * question for the theme. Some themes will draw tree rows in
11011  * alternating colors even when rules are turned off, and users who
11012  * prefer that appearance all the time can choose those themes. You
11013  * should call this function only as a <emphasis>semantic</emphasis>
11014  * hint to the theme engine that your tree makes alternating colors
11015  * useful from a functional standpoint (since it has lots of columns,
11016  * generally).
11017  *
11018  **/
11019 void
11020 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11021                               gboolean      setting)
11022 {
11023   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11024
11025   setting = setting != FALSE;
11026
11027   if (tree_view->priv->has_rules != setting)
11028     {
11029       tree_view->priv->has_rules = setting;
11030       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11031     }
11032
11033   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11034 }
11035
11036 /**
11037  * gtk_tree_view_get_rules_hint
11038  * @tree_view: a #GtkTreeView
11039  *
11040  * Gets the setting set by gtk_tree_view_set_rules_hint().
11041  *
11042  * Return value: %TRUE if rules are useful for the user of this tree
11043  **/
11044 gboolean
11045 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11046 {
11047   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11048
11049   return tree_view->priv->has_rules;
11050 }
11051
11052 /* Public Column functions
11053  */
11054
11055 /**
11056  * gtk_tree_view_append_column:
11057  * @tree_view: A #GtkTreeView.
11058  * @column: The #GtkTreeViewColumn to add.
11059  *
11060  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11061  * mode enabled, then @column must have its "sizing" property set to be
11062  * GTK_TREE_VIEW_COLUMN_FIXED.
11063  *
11064  * Return value: The number of columns in @tree_view after appending.
11065  **/
11066 gint
11067 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11068                              GtkTreeViewColumn *column)
11069 {
11070   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11071   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11072   g_return_val_if_fail (column->tree_view == NULL, -1);
11073
11074   return gtk_tree_view_insert_column (tree_view, column, -1);
11075 }
11076
11077
11078 /**
11079  * gtk_tree_view_remove_column:
11080  * @tree_view: A #GtkTreeView.
11081  * @column: The #GtkTreeViewColumn to remove.
11082  *
11083  * Removes @column from @tree_view.
11084  *
11085  * Return value: The number of columns in @tree_view after removing.
11086  **/
11087 gint
11088 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11089                              GtkTreeViewColumn *column)
11090 {
11091   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11092   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11093   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11094
11095   if (tree_view->priv->focus_column == column)
11096     tree_view->priv->focus_column = NULL;
11097
11098   if (tree_view->priv->edited_column == column)
11099     {
11100       gtk_tree_view_stop_editing (tree_view, TRUE);
11101
11102       /* no need to, but just to be sure ... */
11103       tree_view->priv->edited_column = NULL;
11104     }
11105
11106   g_signal_handlers_disconnect_by_func (column,
11107                                         G_CALLBACK (column_sizing_notify),
11108                                         tree_view);
11109
11110   _gtk_tree_view_column_unset_tree_view (column);
11111
11112   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11113   tree_view->priv->n_columns--;
11114
11115   if (GTK_WIDGET_REALIZED (tree_view))
11116     {
11117       GList *list;
11118
11119       _gtk_tree_view_column_unrealize_button (column);
11120       for (list = tree_view->priv->columns; list; list = list->next)
11121         {
11122           GtkTreeViewColumn *tmp_column;
11123
11124           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11125           if (tmp_column->visible)
11126             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11127         }
11128
11129       if (tree_view->priv->n_columns == 0 &&
11130           gtk_tree_view_get_headers_visible (tree_view))
11131         gdk_window_hide (tree_view->priv->header_window);
11132
11133       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11134     }
11135
11136   g_object_unref (column);
11137   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11138
11139   return tree_view->priv->n_columns;
11140 }
11141
11142 /**
11143  * gtk_tree_view_insert_column:
11144  * @tree_view: A #GtkTreeView.
11145  * @column: The #GtkTreeViewColumn to be inserted.
11146  * @position: The position to insert @column in.
11147  *
11148  * This inserts the @column into the @tree_view at @position.  If @position is
11149  * -1, then the column is inserted at the end. If @tree_view has
11150  * "fixed_height" mode enabled, then @column must have its "sizing" property
11151  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11152  *
11153  * Return value: The number of columns in @tree_view after insertion.
11154  **/
11155 gint
11156 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11157                              GtkTreeViewColumn *column,
11158                              gint               position)
11159 {
11160   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11161   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11162   g_return_val_if_fail (column->tree_view == NULL, -1);
11163
11164   if (tree_view->priv->fixed_height_mode)
11165     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11166                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11167
11168   g_object_ref_sink (column);
11169
11170   if (tree_view->priv->n_columns == 0 &&
11171       GTK_WIDGET_REALIZED (tree_view) &&
11172       gtk_tree_view_get_headers_visible (tree_view))
11173     {
11174       gdk_window_show (tree_view->priv->header_window);
11175     }
11176
11177   g_signal_connect (column, "notify::sizing",
11178                     G_CALLBACK (column_sizing_notify), tree_view);
11179
11180   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11181                                             column, position);
11182   tree_view->priv->n_columns++;
11183
11184   _gtk_tree_view_column_set_tree_view (column, tree_view);
11185
11186   if (GTK_WIDGET_REALIZED (tree_view))
11187     {
11188       GList *list;
11189
11190       _gtk_tree_view_column_realize_button (column);
11191
11192       for (list = tree_view->priv->columns; list; list = list->next)
11193         {
11194           column = GTK_TREE_VIEW_COLUMN (list->data);
11195           if (column->visible)
11196             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11197         }
11198       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11199     }
11200
11201   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11202
11203   return tree_view->priv->n_columns;
11204 }
11205
11206 /**
11207  * gtk_tree_view_insert_column_with_attributes:
11208  * @tree_view: A #GtkTreeView
11209  * @position: The position to insert the new column in.
11210  * @title: The title to set the header to.
11211  * @cell: The #GtkCellRenderer.
11212  * @Varargs: A %NULL-terminated list of attributes.
11213  *
11214  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11215  * @position.  If @position is -1, then the newly created column is inserted at
11216  * the end.  The column is initialized with the attributes given. If @tree_view
11217  * has "fixed_height" mode enabled, then the new column will have its sizing
11218  * property 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_with_attributes (GtkTreeView     *tree_view,
11224                                              gint             position,
11225                                              const gchar     *title,
11226                                              GtkCellRenderer *cell,
11227                                              ...)
11228 {
11229   GtkTreeViewColumn *column;
11230   gchar *attribute;
11231   va_list args;
11232   gint column_id;
11233
11234   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11235
11236   column = gtk_tree_view_column_new ();
11237   if (tree_view->priv->fixed_height_mode)
11238     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11239
11240   gtk_tree_view_column_set_title (column, title);
11241   gtk_tree_view_column_pack_start (column, cell, TRUE);
11242
11243   va_start (args, cell);
11244
11245   attribute = va_arg (args, gchar *);
11246
11247   while (attribute != NULL)
11248     {
11249       column_id = va_arg (args, gint);
11250       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11251       attribute = va_arg (args, gchar *);
11252     }
11253
11254   va_end (args);
11255
11256   gtk_tree_view_insert_column (tree_view, column, position);
11257
11258   return tree_view->priv->n_columns;
11259 }
11260
11261 /**
11262  * gtk_tree_view_insert_column_with_data_func:
11263  * @tree_view: a #GtkTreeView
11264  * @position: Position to insert, -1 for append
11265  * @title: column title
11266  * @cell: cell renderer for column
11267  * @func: function to set attributes of cell renderer
11268  * @data: data for @func
11269  * @dnotify: destroy notifier for @data
11270  *
11271  * Convenience function that inserts a new column into the #GtkTreeView
11272  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11273  * attributes (normally using data from the model). See also
11274  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11275  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11276  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11277  *
11278  * Return value: number of columns in the tree view post-insert
11279  **/
11280 gint
11281 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11282                                              gint                       position,
11283                                              const gchar               *title,
11284                                              GtkCellRenderer           *cell,
11285                                              GtkTreeCellDataFunc        func,
11286                                              gpointer                   data,
11287                                              GDestroyNotify             dnotify)
11288 {
11289   GtkTreeViewColumn *column;
11290
11291   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11292
11293   column = gtk_tree_view_column_new ();
11294   if (tree_view->priv->fixed_height_mode)
11295     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11296
11297   gtk_tree_view_column_set_title (column, title);
11298   gtk_tree_view_column_pack_start (column, cell, TRUE);
11299   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11300
11301   gtk_tree_view_insert_column (tree_view, column, position);
11302
11303   return tree_view->priv->n_columns;
11304 }
11305
11306 /**
11307  * gtk_tree_view_get_column:
11308  * @tree_view: A #GtkTreeView.
11309  * @n: The position of the column, counting from 0.
11310  *
11311  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11312  *
11313  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11314  * range of columns.
11315  **/
11316 GtkTreeViewColumn *
11317 gtk_tree_view_get_column (GtkTreeView *tree_view,
11318                           gint         n)
11319 {
11320   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11321
11322   if (n < 0 || n >= tree_view->priv->n_columns)
11323     return NULL;
11324
11325   if (tree_view->priv->columns == NULL)
11326     return NULL;
11327
11328   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11329 }
11330
11331 /**
11332  * gtk_tree_view_get_columns:
11333  * @tree_view: A #GtkTreeView
11334  *
11335  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11336  * The returned list must be freed with g_list_free ().
11337  *
11338  * Return value: A list of #GtkTreeViewColumn s
11339  **/
11340 GList *
11341 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11342 {
11343   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11344
11345   return g_list_copy (tree_view->priv->columns);
11346 }
11347
11348 /**
11349  * gtk_tree_view_move_column_after:
11350  * @tree_view: A #GtkTreeView
11351  * @column: The #GtkTreeViewColumn to be moved.
11352  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11353  *
11354  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11355  * @column is placed in the first position.
11356  **/
11357 void
11358 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11359                                  GtkTreeViewColumn *column,
11360                                  GtkTreeViewColumn *base_column)
11361 {
11362   GList *column_list_el, *base_el = NULL;
11363
11364   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11365
11366   column_list_el = g_list_find (tree_view->priv->columns, column);
11367   g_return_if_fail (column_list_el != NULL);
11368
11369   if (base_column)
11370     {
11371       base_el = g_list_find (tree_view->priv->columns, base_column);
11372       g_return_if_fail (base_el != NULL);
11373     }
11374
11375   if (column_list_el->prev == base_el)
11376     return;
11377
11378   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11379   if (base_el == NULL)
11380     {
11381       column_list_el->prev = NULL;
11382       column_list_el->next = tree_view->priv->columns;
11383       if (column_list_el->next)
11384         column_list_el->next->prev = column_list_el;
11385       tree_view->priv->columns = column_list_el;
11386     }
11387   else
11388     {
11389       column_list_el->prev = base_el;
11390       column_list_el->next = base_el->next;
11391       if (column_list_el->next)
11392         column_list_el->next->prev = column_list_el;
11393       base_el->next = column_list_el;
11394     }
11395
11396   if (GTK_WIDGET_REALIZED (tree_view))
11397     {
11398       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11399       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11400     }
11401
11402   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11403 }
11404
11405 /**
11406  * gtk_tree_view_set_expander_column:
11407  * @tree_view: A #GtkTreeView
11408  * @column: %NULL, or the column to draw the expander arrow at.
11409  *
11410  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11411  * If @column is %NULL, then the expander arrow is always at the first
11412  * visible column.
11413  *
11414  * If you do not want expander arrow to appear in your tree, set the
11415  * expander column to a hidden column.
11416  **/
11417 void
11418 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11419                                    GtkTreeViewColumn *column)
11420 {
11421   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11422   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11423
11424   if (tree_view->priv->expander_column != column)
11425     {
11426       GList *list;
11427
11428       if (column)
11429         {
11430           /* Confirm that column is in tree_view */
11431           for (list = tree_view->priv->columns; list; list = list->next)
11432             if (list->data == column)
11433               break;
11434           g_return_if_fail (list != NULL);
11435         }
11436
11437       tree_view->priv->expander_column = column;
11438       g_object_notify (G_OBJECT (tree_view), "expander-column");
11439     }
11440 }
11441
11442 /**
11443  * gtk_tree_view_get_expander_column:
11444  * @tree_view: A #GtkTreeView
11445  *
11446  * Returns the column that is the current expander column.  This
11447  * column has the expander arrow drawn next to it.
11448  *
11449  * Return value: The expander column.
11450  **/
11451 GtkTreeViewColumn *
11452 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11453 {
11454   GList *list;
11455
11456   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11457
11458   for (list = tree_view->priv->columns; list; list = list->next)
11459     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11460       return (GtkTreeViewColumn *) list->data;
11461   return NULL;
11462 }
11463
11464
11465 /**
11466  * gtk_tree_view_set_column_drag_function:
11467  * @tree_view: A #GtkTreeView.
11468  * @func: A function to determine which columns are reorderable, or %NULL.
11469  * @user_data: User data to be passed to @func, or %NULL
11470  * @destroy: Destroy notifier for @user_data, or %NULL
11471  *
11472  * Sets a user function for determining where a column may be dropped when
11473  * dragged.  This function is called on every column pair in turn at the
11474  * beginning of a column drag to determine where a drop can take place.  The
11475  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11476  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11477  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11478  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11479  * @tree_view reverts to the default behavior of allowing all columns to be
11480  * dropped everywhere.
11481  **/
11482 void
11483 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11484                                         GtkTreeViewColumnDropFunc  func,
11485                                         gpointer                   user_data,
11486                                         GDestroyNotify             destroy)
11487 {
11488   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11489
11490   if (tree_view->priv->column_drop_func_data_destroy)
11491     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11492
11493   tree_view->priv->column_drop_func = func;
11494   tree_view->priv->column_drop_func_data = user_data;
11495   tree_view->priv->column_drop_func_data_destroy = destroy;
11496 }
11497
11498 /**
11499  * gtk_tree_view_scroll_to_point:
11500  * @tree_view: a #GtkTreeView
11501  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11502  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11503  *
11504  * Scrolls the tree view such that the top-left corner of the visible
11505  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11506  * in tree coordinates.  The @tree_view must be realized before
11507  * this function is called.  If it isn't, you probably want to be
11508  * using gtk_tree_view_scroll_to_cell().
11509  *
11510  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11511  **/
11512 void
11513 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11514                                gint         tree_x,
11515                                gint         tree_y)
11516 {
11517   GtkAdjustment *hadj;
11518   GtkAdjustment *vadj;
11519
11520   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11521   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11522
11523   hadj = tree_view->priv->hadjustment;
11524   vadj = tree_view->priv->vadjustment;
11525
11526   if (tree_x != -1)
11527     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11528   if (tree_y != -1)
11529     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11530 }
11531
11532 /**
11533  * gtk_tree_view_scroll_to_cell:
11534  * @tree_view: A #GtkTreeView.
11535  * @path: The path of the row to move to, or %NULL.
11536  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11537  * @use_align: whether to use alignment arguments, or %FALSE.
11538  * @row_align: The vertical alignment of the row specified by @path.
11539  * @col_align: The horizontal alignment of the column specified by @column.
11540  *
11541  * Moves the alignments of @tree_view to the position specified by @column and
11542  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11543  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11544  * or @path need to be non-%NULL.  @row_align determines where the row is
11545  * placed, and @col_align determines where @column is placed.  Both are expected
11546  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11547  * right/bottom alignment, 0.5 means center.
11548  *
11549  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11550  * tree does the minimum amount of work to scroll the cell onto the screen.
11551  * This means that the cell will be scrolled to the edge closest to its current
11552  * position.  If the cell is currently visible on the screen, nothing is done.
11553  *
11554  * This function only works if the model is set, and @path is a valid row on the
11555  * model.  If the model changes before the @tree_view is realized, the centered
11556  * path will be modified to reflect this change.
11557  **/
11558 void
11559 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11560                               GtkTreePath       *path,
11561                               GtkTreeViewColumn *column,
11562                               gboolean           use_align,
11563                               gfloat             row_align,
11564                               gfloat             col_align)
11565 {
11566   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11567   g_return_if_fail (tree_view->priv->model != NULL);
11568   g_return_if_fail (tree_view->priv->tree != NULL);
11569   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11570   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11571   g_return_if_fail (path != NULL || column != NULL);
11572
11573 #if 0
11574   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11575            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11576 #endif
11577   row_align = CLAMP (row_align, 0.0, 1.0);
11578   col_align = CLAMP (col_align, 0.0, 1.0);
11579
11580
11581   /* Note: Despite the benefits that come from having one code path for the
11582    * scrolling code, we short-circuit validate_visible_area's immplementation as
11583    * it is much slower than just going to the point.
11584    */
11585   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11586       ! GTK_WIDGET_REALIZED (tree_view) ||
11587       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11588       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11589     {
11590       if (tree_view->priv->scroll_to_path)
11591         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11592
11593       tree_view->priv->scroll_to_path = NULL;
11594       tree_view->priv->scroll_to_column = NULL;
11595
11596       if (path)
11597         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11598       if (column)
11599         tree_view->priv->scroll_to_column = column;
11600       tree_view->priv->scroll_to_use_align = use_align;
11601       tree_view->priv->scroll_to_row_align = row_align;
11602       tree_view->priv->scroll_to_col_align = col_align;
11603
11604       install_presize_handler (tree_view);
11605     }
11606   else
11607     {
11608       GdkRectangle cell_rect;
11609       GdkRectangle vis_rect;
11610       gint dest_x, dest_y;
11611
11612       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11613       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11614
11615       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11616
11617       dest_x = vis_rect.x;
11618       dest_y = vis_rect.y;
11619
11620       if (column)
11621         {
11622           if (use_align)
11623             {
11624               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11625             }
11626           else
11627             {
11628               if (cell_rect.x < vis_rect.x)
11629                 dest_x = cell_rect.x;
11630               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11631                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11632             }
11633         }
11634
11635       if (path)
11636         {
11637           if (use_align)
11638             {
11639               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11640               dest_y = MAX (dest_y, 0);
11641             }
11642           else
11643             {
11644               if (cell_rect.y < vis_rect.y)
11645                 dest_y = cell_rect.y;
11646               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11647                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11648             }
11649         }
11650
11651       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11652     }
11653 }
11654
11655 /**
11656  * gtk_tree_view_row_activated:
11657  * @tree_view: A #GtkTreeView
11658  * @path: The #GtkTreePath to be activated.
11659  * @column: The #GtkTreeViewColumn to be activated.
11660  *
11661  * Activates the cell determined by @path and @column.
11662  **/
11663 void
11664 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11665                              GtkTreePath       *path,
11666                              GtkTreeViewColumn *column)
11667 {
11668   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11669
11670   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11671 }
11672
11673
11674 static void
11675 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11676                                           GtkRBNode *node,
11677                                           gpointer   data)
11678 {
11679   GtkTreeView *tree_view = data;
11680
11681   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11682       node->children)
11683     {
11684       GtkTreePath *path;
11685       GtkTreeIter iter;
11686
11687       path = _gtk_tree_view_find_path (tree_view, tree, node);
11688       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11689
11690       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11691
11692       gtk_tree_path_free (path);
11693     }
11694
11695   if (node->children)
11696     _gtk_rbtree_traverse (node->children,
11697                           node->children->root,
11698                           G_PRE_ORDER,
11699                           gtk_tree_view_expand_all_emission_helper,
11700                           tree_view);
11701 }
11702
11703 /**
11704  * gtk_tree_view_expand_all:
11705  * @tree_view: A #GtkTreeView.
11706  *
11707  * Recursively expands all nodes in the @tree_view.
11708  **/
11709 void
11710 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11711 {
11712   GtkTreePath *path;
11713   GtkRBTree *tree;
11714   GtkRBNode *node;
11715
11716   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11717
11718   if (tree_view->priv->tree == NULL)
11719     return;
11720
11721   path = gtk_tree_path_new_first ();
11722   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11723
11724   while (node)
11725     {
11726       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11727       node = _gtk_rbtree_next (tree, node);
11728       gtk_tree_path_next (path);
11729   }
11730
11731   gtk_tree_path_free (path);
11732 }
11733
11734 /* Timeout to animate the expander during expands and collapses */
11735 static gboolean
11736 expand_collapse_timeout (gpointer data)
11737 {
11738   return do_expand_collapse (data);
11739 }
11740
11741 static void
11742 add_expand_collapse_timeout (GtkTreeView *tree_view,
11743                              GtkRBTree   *tree,
11744                              GtkRBNode   *node,
11745                              gboolean     expand)
11746 {
11747   if (tree_view->priv->expand_collapse_timeout != 0)
11748     return;
11749
11750   tree_view->priv->expand_collapse_timeout =
11751       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11752   tree_view->priv->expanded_collapsed_tree = tree;
11753   tree_view->priv->expanded_collapsed_node = node;
11754
11755   if (expand)
11756     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11757   else
11758     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11759 }
11760
11761 static void
11762 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11763 {
11764   if (tree_view->priv->expand_collapse_timeout)
11765     {
11766       g_source_remove (tree_view->priv->expand_collapse_timeout);
11767       tree_view->priv->expand_collapse_timeout = 0;
11768     }
11769
11770   if (tree_view->priv->expanded_collapsed_node != NULL)
11771     {
11772       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11773       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11774
11775       tree_view->priv->expanded_collapsed_node = NULL;
11776     }
11777 }
11778
11779 static void
11780 cancel_arrow_animation (GtkTreeView *tree_view)
11781 {
11782   if (tree_view->priv->expand_collapse_timeout)
11783     {
11784       while (do_expand_collapse (tree_view));
11785
11786       remove_expand_collapse_timeout (tree_view);
11787     }
11788 }
11789
11790 static gboolean
11791 do_expand_collapse (GtkTreeView *tree_view)
11792 {
11793   GtkRBNode *node;
11794   GtkRBTree *tree;
11795   gboolean expanding;
11796   gboolean redraw;
11797
11798   redraw = FALSE;
11799   expanding = TRUE;
11800
11801   node = tree_view->priv->expanded_collapsed_node;
11802   tree = tree_view->priv->expanded_collapsed_tree;
11803
11804   if (node->children == NULL)
11805     expanding = FALSE;
11806
11807   if (expanding)
11808     {
11809       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11810         {
11811           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11812           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11813
11814           redraw = TRUE;
11815
11816         }
11817       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11818         {
11819           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11820
11821           redraw = TRUE;
11822         }
11823     }
11824   else
11825     {
11826       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11827         {
11828           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11829           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11830
11831           redraw = TRUE;
11832         }
11833       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11834         {
11835           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11836
11837           redraw = TRUE;
11838
11839         }
11840     }
11841
11842   if (redraw)
11843     {
11844       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11845
11846       return TRUE;
11847     }
11848
11849   return FALSE;
11850 }
11851
11852 /**
11853  * gtk_tree_view_collapse_all:
11854  * @tree_view: A #GtkTreeView.
11855  *
11856  * Recursively collapses all visible, expanded nodes in @tree_view.
11857  **/
11858 void
11859 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11860 {
11861   GtkRBTree *tree;
11862   GtkRBNode *node;
11863   GtkTreePath *path;
11864   gint *indices;
11865
11866   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11867
11868   if (tree_view->priv->tree == NULL)
11869     return;
11870
11871   path = gtk_tree_path_new ();
11872   gtk_tree_path_down (path);
11873   indices = gtk_tree_path_get_indices (path);
11874
11875   tree = tree_view->priv->tree;
11876   node = tree->root;
11877   while (node && node->left != tree->nil)
11878     node = node->left;
11879
11880   while (node)
11881     {
11882       if (node->children)
11883         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11884       indices[0]++;
11885       node = _gtk_rbtree_next (tree, node);
11886     }
11887
11888   gtk_tree_path_free (path);
11889 }
11890
11891 /**
11892  * gtk_tree_view_expand_to_path:
11893  * @tree_view: A #GtkTreeView.
11894  * @path: path to a row.
11895  *
11896  * Expands the row at @path. This will also expand all parent rows of
11897  * @path as necessary.
11898  *
11899  * Since: 2.2
11900  **/
11901 void
11902 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11903                               GtkTreePath *path)
11904 {
11905   gint i, depth;
11906   gint *indices;
11907   GtkTreePath *tmp;
11908
11909   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11910   g_return_if_fail (path != NULL);
11911
11912   depth = gtk_tree_path_get_depth (path);
11913   indices = gtk_tree_path_get_indices (path);
11914
11915   tmp = gtk_tree_path_new ();
11916   g_return_if_fail (tmp != NULL);
11917
11918   for (i = 0; i < depth; i++)
11919     {
11920       gtk_tree_path_append_index (tmp, indices[i]);
11921       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11922     }
11923
11924   gtk_tree_path_free (tmp);
11925 }
11926
11927 /* FIXME the bool return values for expand_row and collapse_row are
11928  * not analagous; they should be TRUE if the row had children and
11929  * was not already in the requested state.
11930  */
11931
11932
11933 static gboolean
11934 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
11935                                GtkTreePath *path,
11936                                GtkRBTree   *tree,
11937                                GtkRBNode   *node,
11938                                gboolean     open_all,
11939                                gboolean     animate)
11940 {
11941   GtkTreeIter iter;
11942   GtkTreeIter temp;
11943   gboolean expand;
11944
11945   if (animate)
11946     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11947                   "gtk-enable-animations", &animate,
11948                   NULL);
11949
11950   remove_auto_expand_timeout (tree_view);
11951
11952   if (node->children && !open_all)
11953     return FALSE;
11954
11955   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
11956     return FALSE;
11957
11958   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11959   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11960     return FALSE;
11961
11962
11963    if (node->children && open_all)
11964     {
11965       gboolean retval = FALSE;
11966       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
11967
11968       gtk_tree_path_append_index (tmp_path, 0);
11969       tree = node->children;
11970       node = tree->root;
11971       while (node->left != tree->nil)
11972         node = node->left;
11973       /* try to expand the children */
11974       do
11975         {
11976          gboolean t;
11977          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
11978                                             TRUE, animate);
11979          if (t)
11980            retval = TRUE;
11981
11982          gtk_tree_path_next (tmp_path);
11983          node = _gtk_rbtree_next (tree, node);
11984        }
11985       while (node != NULL);
11986
11987       gtk_tree_path_free (tmp_path);
11988
11989       return retval;
11990     }
11991
11992   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
11993
11994   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11995     return FALSE;
11996
11997   if (expand)
11998     return FALSE;
11999
12000   node->children = _gtk_rbtree_new ();
12001   node->children->parent_tree = tree;
12002   node->children->parent_node = node;
12003
12004   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12005
12006   gtk_tree_view_build_tree (tree_view,
12007                             node->children,
12008                             &temp,
12009                             gtk_tree_path_get_depth (path) + 1,
12010                             open_all);
12011
12012   remove_expand_collapse_timeout (tree_view);
12013
12014   if (animate)
12015     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12016
12017   install_presize_handler (tree_view);
12018
12019   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12020   if (open_all && node->children)
12021     {
12022       _gtk_rbtree_traverse (node->children,
12023                             node->children->root,
12024                             G_PRE_ORDER,
12025                             gtk_tree_view_expand_all_emission_helper,
12026                             tree_view);
12027     }
12028   return TRUE;
12029 }
12030
12031
12032 /**
12033  * gtk_tree_view_expand_row:
12034  * @tree_view: a #GtkTreeView
12035  * @path: path to a row
12036  * @open_all: whether to recursively expand, or just expand immediate children
12037  *
12038  * Opens the row so its children are visible.
12039  *
12040  * Return value: %TRUE if the row existed and had children
12041  **/
12042 gboolean
12043 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12044                           GtkTreePath *path,
12045                           gboolean     open_all)
12046 {
12047   GtkRBTree *tree;
12048   GtkRBNode *node;
12049
12050   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12051   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12052   g_return_val_if_fail (path != NULL, FALSE);
12053
12054   if (_gtk_tree_view_find_node (tree_view,
12055                                 path,
12056                                 &tree,
12057                                 &node))
12058     return FALSE;
12059
12060   if (tree != NULL)
12061     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12062   else
12063     return FALSE;
12064 }
12065
12066 static gboolean
12067 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12068                                  GtkTreePath *path,
12069                                  GtkRBTree   *tree,
12070                                  GtkRBNode   *node,
12071                                  gboolean     animate)
12072 {
12073   GtkTreeIter iter;
12074   GtkTreeIter children;
12075   gboolean collapse;
12076   gint x, y;
12077   GList *list;
12078   GdkWindow *child, *parent;
12079
12080   if (animate)
12081     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12082                   "gtk-enable-animations", &animate,
12083                   NULL);
12084
12085   remove_auto_expand_timeout (tree_view);
12086
12087   if (node->children == NULL)
12088     return FALSE;
12089
12090   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12091
12092   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12093
12094   if (collapse)
12095     return FALSE;
12096
12097   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12098    * a chance to prelight the correct node below */
12099
12100   if (tree_view->priv->prelight_tree)
12101     {
12102       GtkRBTree *parent_tree;
12103       GtkRBNode *parent_node;
12104
12105       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12106       parent_node = tree_view->priv->prelight_tree->parent_node;
12107       while (parent_tree)
12108         {
12109           if (parent_tree == tree && parent_node == node)
12110             {
12111               ensure_unprelighted (tree_view);
12112               break;
12113             }
12114           parent_node = parent_tree->parent_node;
12115           parent_tree = parent_tree->parent_tree;
12116         }
12117     }
12118
12119   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12120
12121   for (list = tree_view->priv->columns; list; list = list->next)
12122     {
12123       GtkTreeViewColumn *column = list->data;
12124
12125       if (column->visible == FALSE)
12126         continue;
12127       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12128         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12129     }
12130
12131   if (tree_view->priv->destroy_count_func)
12132     {
12133       GtkTreePath *child_path;
12134       gint child_count = 0;
12135       child_path = gtk_tree_path_copy (path);
12136       gtk_tree_path_down (child_path);
12137       if (node->children)
12138         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12139       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12140       gtk_tree_path_free (child_path);
12141     }
12142
12143   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12144     {
12145       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12146
12147       if (gtk_tree_path_is_ancestor (path, cursor_path))
12148         {
12149           gtk_tree_row_reference_free (tree_view->priv->cursor);
12150           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12151                                                                       tree_view->priv->model,
12152                                                                       path);
12153         }
12154       gtk_tree_path_free (cursor_path);
12155     }
12156
12157   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12158     {
12159       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12160       if (gtk_tree_path_is_ancestor (path, anchor_path))
12161         {
12162           gtk_tree_row_reference_free (tree_view->priv->anchor);
12163           tree_view->priv->anchor = NULL;
12164         }
12165       gtk_tree_path_free (anchor_path);
12166     }
12167
12168   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12169     {
12170       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12171       if (gtk_tree_path_is_ancestor (path, lsc))
12172         {
12173           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12174           tree_view->priv->last_button_press = NULL;
12175         }
12176       gtk_tree_path_free (lsc);
12177     }
12178
12179   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12180     {
12181       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12182       if (gtk_tree_path_is_ancestor (path, lsc))
12183         {
12184           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12185           tree_view->priv->last_button_press_2 = NULL;
12186         }
12187       gtk_tree_path_free (lsc);
12188     }
12189
12190   remove_expand_collapse_timeout (tree_view);
12191
12192   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12193     {
12194       _gtk_rbtree_remove (node->children);
12195       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12196     }
12197   else
12198     _gtk_rbtree_remove (node->children);
12199
12200   if (animate)
12201     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12202
12203   if (GTK_WIDGET_MAPPED (tree_view))
12204     {
12205       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12206     }
12207
12208   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12209
12210   if (GTK_WIDGET_MAPPED (tree_view))
12211     {
12212       /* now that we've collapsed all rows, we want to try to set the prelight
12213        * again. To do this, we fake a motion event and send it to ourselves. */
12214
12215       child = tree_view->priv->bin_window;
12216       parent = gdk_window_get_parent (child);
12217
12218       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12219         {
12220           GdkEventMotion event;
12221           gint child_x, child_y;
12222
12223           gdk_window_get_position (child, &child_x, &child_y);
12224
12225           event.window = tree_view->priv->bin_window;
12226           event.x = x - child_x;
12227           event.y = y - child_y;
12228
12229           /* despite the fact this isn't a real event, I'm almost positive it will
12230            * never trigger a drag event.  maybe_drag is the only function that uses
12231            * more than just event.x and event.y. */
12232           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12233         }
12234     }
12235
12236   return TRUE;
12237 }
12238
12239 /**
12240  * gtk_tree_view_collapse_row:
12241  * @tree_view: a #GtkTreeView
12242  * @path: path to a row in the @tree_view
12243  *
12244  * Collapses a row (hides its child rows, if they exist).
12245  *
12246  * Return value: %TRUE if the row was collapsed.
12247  **/
12248 gboolean
12249 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12250                             GtkTreePath *path)
12251 {
12252   GtkRBTree *tree;
12253   GtkRBNode *node;
12254
12255   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12256   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12257   g_return_val_if_fail (path != NULL, FALSE);
12258
12259   if (_gtk_tree_view_find_node (tree_view,
12260                                 path,
12261                                 &tree,
12262                                 &node))
12263     return FALSE;
12264
12265   if (tree == NULL || node->children == NULL)
12266     return FALSE;
12267
12268   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12269 }
12270
12271 static void
12272 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12273                                         GtkRBTree              *tree,
12274                                         GtkTreePath            *path,
12275                                         GtkTreeViewMappingFunc  func,
12276                                         gpointer                user_data)
12277 {
12278   GtkRBNode *node;
12279
12280   if (tree == NULL || tree->root == NULL)
12281     return;
12282
12283   node = tree->root;
12284
12285   while (node && node->left != tree->nil)
12286     node = node->left;
12287
12288   while (node)
12289     {
12290       if (node->children)
12291         {
12292           (* func) (tree_view, path, user_data);
12293           gtk_tree_path_down (path);
12294           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12295           gtk_tree_path_up (path);
12296         }
12297       gtk_tree_path_next (path);
12298       node = _gtk_rbtree_next (tree, node);
12299     }
12300 }
12301
12302 /**
12303  * gtk_tree_view_map_expanded_rows:
12304  * @tree_view: A #GtkTreeView
12305  * @func: A function to be called
12306  * @data: User data to be passed to the function.
12307  *
12308  * Calls @func on all expanded rows.
12309  **/
12310 void
12311 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12312                                  GtkTreeViewMappingFunc  func,
12313                                  gpointer                user_data)
12314 {
12315   GtkTreePath *path;
12316
12317   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12318   g_return_if_fail (func != NULL);
12319
12320   path = gtk_tree_path_new_first ();
12321
12322   gtk_tree_view_map_expanded_rows_helper (tree_view,
12323                                           tree_view->priv->tree,
12324                                           path, func, user_data);
12325
12326   gtk_tree_path_free (path);
12327 }
12328
12329 /**
12330  * gtk_tree_view_row_expanded:
12331  * @tree_view: A #GtkTreeView.
12332  * @path: A #GtkTreePath to test expansion state.
12333  *
12334  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12335  *
12336  * Return value: %TRUE if #path is expanded.
12337  **/
12338 gboolean
12339 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12340                             GtkTreePath *path)
12341 {
12342   GtkRBTree *tree;
12343   GtkRBNode *node;
12344
12345   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12346   g_return_val_if_fail (path != NULL, FALSE);
12347
12348   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12349
12350   if (node == NULL)
12351     return FALSE;
12352
12353   return (node->children != NULL);
12354 }
12355
12356 /**
12357  * gtk_tree_view_get_reorderable:
12358  * @tree_view: a #GtkTreeView
12359  *
12360  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12361  * gtk_tree_view_set_reorderable().
12362  *
12363  * Return value: %TRUE if the tree can be reordered.
12364  **/
12365 gboolean
12366 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12367 {
12368   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12369
12370   return tree_view->priv->reorderable;
12371 }
12372
12373 /**
12374  * gtk_tree_view_set_reorderable:
12375  * @tree_view: A #GtkTreeView.
12376  * @reorderable: %TRUE, if the tree can be reordered.
12377  *
12378  * This function is a convenience function to allow you to reorder
12379  * models that support the #GtkDragSourceIface and the
12380  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12381  * these.  If @reorderable is %TRUE, then the user can reorder the
12382  * model by dragging and dropping rows. The developer can listen to
12383  * these changes by connecting to the model's row_inserted and
12384  * row_deleted signals. The reordering is implemented by setting up
12385  * the tree view as a drag source and destination. Therefore, drag and
12386  * drop can not be used in a reorderable view for any other purpose.
12387  *
12388  * This function does not give you any degree of control over the order -- any
12389  * reordering is allowed.  If more control is needed, you should probably
12390  * handle drag and drop manually.
12391  **/
12392 void
12393 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12394                                gboolean     reorderable)
12395 {
12396   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12397
12398   reorderable = reorderable != FALSE;
12399
12400   if (tree_view->priv->reorderable == reorderable)
12401     return;
12402
12403   if (reorderable)
12404     {
12405       const GtkTargetEntry row_targets[] = {
12406         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12407       };
12408
12409       gtk_tree_view_enable_model_drag_source (tree_view,
12410                                               GDK_BUTTON1_MASK,
12411                                               row_targets,
12412                                               G_N_ELEMENTS (row_targets),
12413                                               GDK_ACTION_MOVE);
12414       gtk_tree_view_enable_model_drag_dest (tree_view,
12415                                             row_targets,
12416                                             G_N_ELEMENTS (row_targets),
12417                                             GDK_ACTION_MOVE);
12418     }
12419   else
12420     {
12421       gtk_tree_view_unset_rows_drag_source (tree_view);
12422       gtk_tree_view_unset_rows_drag_dest (tree_view);
12423     }
12424
12425   tree_view->priv->reorderable = reorderable;
12426
12427   g_object_notify (G_OBJECT (tree_view), "reorderable");
12428 }
12429
12430 static void
12431 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12432                                GtkTreePath     *path,
12433                                gboolean         clear_and_select,
12434                                gboolean         clamp_node)
12435 {
12436   GtkRBTree *tree = NULL;
12437   GtkRBNode *node = NULL;
12438
12439   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12440     {
12441       GtkTreePath *cursor_path;
12442       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12443       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12444       gtk_tree_path_free (cursor_path);
12445     }
12446
12447   gtk_tree_row_reference_free (tree_view->priv->cursor);
12448   tree_view->priv->cursor = NULL;
12449
12450   /* One cannot set the cursor on a separator.   Also, if
12451    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12452    * before finding the tree and node belonging to path.  The
12453    * path maps to a non-existing path and we will silently bail out.
12454    * We unset tree and node to avoid further processing.
12455    */
12456   if (!row_is_separator (tree_view, NULL, path)
12457       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12458     {
12459       tree_view->priv->cursor =
12460           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12461                                             tree_view->priv->model,
12462                                             path);
12463     }
12464   else
12465     {
12466       tree = NULL;
12467       node = NULL;
12468     }
12469
12470   if (tree != NULL)
12471     {
12472       GtkRBTree *new_tree = NULL;
12473       GtkRBNode *new_node = NULL;
12474
12475       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12476         {
12477           GtkTreeSelectMode mode = 0;
12478
12479           if (tree_view->priv->ctrl_pressed)
12480             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12481           if (tree_view->priv->shift_pressed)
12482             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12483
12484           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12485                                                     node, tree, path, mode,
12486                                                     FALSE);
12487         }
12488
12489       /* We have to re-find tree and node here again, somebody might have
12490        * cleared the node or the whole tree in the GtkTreeSelection::changed
12491        * callback. If the nodes differ we bail out here.
12492        */
12493       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12494
12495       if (tree != new_tree || node != new_node)
12496         return;
12497
12498       if (clamp_node)
12499         {
12500           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12501           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12502         }
12503     }
12504
12505   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12506 }
12507
12508 /**
12509  * gtk_tree_view_get_cursor:
12510  * @tree_view: A #GtkTreeView
12511  * @path: A pointer to be filled with the current cursor path, or %NULL
12512  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12513  *
12514  * Fills in @path and @focus_column with the current path and focus column.  If
12515  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12516  * currently has focus, then *@focus_column will be %NULL.
12517  *
12518  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12519  * you are done with it.
12520  **/
12521 void
12522 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12523                           GtkTreePath       **path,
12524                           GtkTreeViewColumn **focus_column)
12525 {
12526   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12527
12528   if (path)
12529     {
12530       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12531         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12532       else
12533         *path = NULL;
12534     }
12535
12536   if (focus_column)
12537     {
12538       *focus_column = tree_view->priv->focus_column;
12539     }
12540 }
12541
12542 /**
12543  * gtk_tree_view_set_cursor:
12544  * @tree_view: A #GtkTreeView
12545  * @path: A #GtkTreePath
12546  * @focus_column: A #GtkTreeViewColumn, or %NULL
12547  * @start_editing: %TRUE if the specified cell should start being edited.
12548  *
12549  * Sets the current keyboard focus to be at @path, and selects it.  This is
12550  * useful when you want to focus the user's attention on a particular row.  If
12551  * @focus_column is not %NULL, then focus is given to the column specified by
12552  * it. Additionally, if @focus_column is specified, and @start_editing is
12553  * %TRUE, then editing should be started in the specified cell.
12554  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12555  * in order to give keyboard focus to the widget.  Please note that editing
12556  * can only happen when the widget is realized.
12557  *
12558  * If @path is invalid for @model, the current cursor (if any) will be unset
12559  * and the function will return without failing.
12560  **/
12561 void
12562 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12563                           GtkTreePath       *path,
12564                           GtkTreeViewColumn *focus_column,
12565                           gboolean           start_editing)
12566 {
12567   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12568                                     NULL, start_editing);
12569 }
12570
12571 /**
12572  * gtk_tree_view_set_cursor_on_cell:
12573  * @tree_view: A #GtkTreeView
12574  * @path: A #GtkTreePath
12575  * @focus_column: A #GtkTreeViewColumn, or %NULL
12576  * @focus_cell: A #GtkCellRenderer, or %NULL
12577  * @start_editing: %TRUE if the specified cell should start being edited.
12578  *
12579  * Sets the current keyboard focus to be at @path, and selects it.  This is
12580  * useful when you want to focus the user's attention on a particular row.  If
12581  * @focus_column is not %NULL, then focus is given to the column specified by
12582  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12583  * contains 2 or more editable or activatable cells, then focus is given to
12584  * the cell specified by @focus_cell. Additionally, if @focus_column is
12585  * specified, and @start_editing is %TRUE, then editing should be started in
12586  * the specified cell.  This function is often followed by
12587  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12588  * widget.  Please note that editing can only happen when the widget is
12589  * realized.
12590  *
12591  * If @path is invalid for @model, the current cursor (if any) will be unset
12592  * and the function will return without failing.
12593  *
12594  * Since: 2.2
12595  **/
12596 void
12597 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12598                                   GtkTreePath       *path,
12599                                   GtkTreeViewColumn *focus_column,
12600                                   GtkCellRenderer   *focus_cell,
12601                                   gboolean           start_editing)
12602 {
12603   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12604   g_return_if_fail (path != NULL);
12605   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12606
12607   if (!tree_view->priv->model)
12608     return;
12609
12610   if (focus_cell)
12611     {
12612       g_return_if_fail (focus_column);
12613       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12614     }
12615
12616   /* cancel the current editing, if it exists */
12617   if (tree_view->priv->edited_column &&
12618       tree_view->priv->edited_column->editable_widget)
12619     gtk_tree_view_stop_editing (tree_view, TRUE);
12620
12621   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12622
12623   if (focus_column && focus_column->visible)
12624     {
12625       GList *list;
12626       gboolean column_in_tree = FALSE;
12627
12628       for (list = tree_view->priv->columns; list; list = list->next)
12629         if (list->data == focus_column)
12630           {
12631             column_in_tree = TRUE;
12632             break;
12633           }
12634       g_return_if_fail (column_in_tree);
12635       tree_view->priv->focus_column = focus_column;
12636       if (focus_cell)
12637         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12638       if (start_editing)
12639         gtk_tree_view_start_editing (tree_view, path);
12640     }
12641 }
12642
12643 /**
12644  * gtk_tree_view_get_bin_window:
12645  * @tree_view: A #GtkTreeView
12646  *
12647  * Returns the window that @tree_view renders to.  This is used primarily to
12648  * compare to <literal>event->window</literal> to confirm that the event on
12649  * @tree_view is on the right window.
12650  *
12651  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12652  **/
12653 GdkWindow *
12654 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12655 {
12656   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12657
12658   return tree_view->priv->bin_window;
12659 }
12660
12661 /**
12662  * gtk_tree_view_get_path_at_pos:
12663  * @tree_view: A #GtkTreeView.
12664  * @x: The x position to be identified (relative to bin_window).
12665  * @y: The y position to be identified (relative to bin_window).
12666  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12667  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12668  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12669  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12670  *
12671  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12672  * (please see gtk_tree_view_get_bin_window()).
12673  * That is, @x and @y are relative to an events coordinates. @x and @y must
12674  * come from an event on the @tree_view only where <literal>event->window ==
12675  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12676  * things like popup menus. If @path is non-%NULL, then it will be filled
12677  * with the #GtkTreePath at that point.  This path should be freed with
12678  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12679  * with the column at that point.  @cell_x and @cell_y return the coordinates
12680  * relative to the cell background (i.e. the @background_area passed to
12681  * gtk_cell_renderer_render()).  This function is only meaningful if
12682  * @tree_view is realized.  Therefore this function will always return %FALSE
12683  * if @tree_view is not realized or does not have a model.
12684  *
12685  * For converting widget coordinates (eg. the ones you get from
12686  * GtkWidget::query-tooltip), please see
12687  * gtk_tree_view_convert_widget_to_bin_window_coords().
12688  *
12689  * Return value: %TRUE if a row exists at that coordinate.
12690  **/
12691 gboolean
12692 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12693                                gint                x,
12694                                gint                y,
12695                                GtkTreePath       **path,
12696                                GtkTreeViewColumn **column,
12697                                gint               *cell_x,
12698                                gint               *cell_y)
12699 {
12700   GtkRBTree *tree;
12701   GtkRBNode *node;
12702   gint y_offset;
12703
12704   g_return_val_if_fail (tree_view != NULL, FALSE);
12705
12706   if (path)
12707     *path = NULL;
12708   if (column)
12709     *column = NULL;
12710
12711   if (tree_view->priv->bin_window == NULL)
12712     return FALSE;
12713
12714   if (tree_view->priv->tree == NULL)
12715     return FALSE;
12716
12717   if (x > tree_view->priv->hadjustment->upper)
12718     return FALSE;
12719
12720   if (x < 0 || y < 0)
12721     return FALSE;
12722
12723   if (column || cell_x)
12724     {
12725       GtkTreeViewColumn *tmp_column;
12726       GtkTreeViewColumn *last_column = NULL;
12727       GList *list;
12728       gint remaining_x = x;
12729       gboolean found = FALSE;
12730       gboolean rtl;
12731
12732       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12733       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12734            list;
12735            list = (rtl ? list->prev : list->next))
12736         {
12737           tmp_column = list->data;
12738
12739           if (tmp_column->visible == FALSE)
12740             continue;
12741
12742           last_column = tmp_column;
12743           if (remaining_x <= tmp_column->width)
12744             {
12745               found = TRUE;
12746
12747               if (column)
12748                 *column = tmp_column;
12749
12750               if (cell_x)
12751                 *cell_x = remaining_x;
12752
12753               break;
12754             }
12755           remaining_x -= tmp_column->width;
12756         }
12757
12758       /* If found is FALSE and there is a last_column, then it the remainder
12759        * space is in that area
12760        */
12761       if (!found)
12762         {
12763           if (last_column)
12764             {
12765               if (column)
12766                 *column = last_column;
12767
12768               if (cell_x)
12769                 *cell_x = last_column->width + remaining_x;
12770             }
12771           else
12772             {
12773               return FALSE;
12774             }
12775         }
12776     }
12777
12778   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12779                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12780                                       &tree, &node);
12781
12782   if (tree == NULL)
12783     return FALSE;
12784
12785   if (cell_y)
12786     *cell_y = y_offset;
12787
12788   if (path)
12789     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12790
12791   return TRUE;
12792 }
12793
12794
12795 /**
12796  * gtk_tree_view_get_cell_area:
12797  * @tree_view: a #GtkTreeView
12798  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12799  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12800  * @rect: rectangle to fill with cell rect
12801  *
12802  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12803  * row specified by @path and the column specified by @column.  If @path is
12804  * %NULL, or points to a path not currently displayed, the @y and @height fields
12805  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12806  * fields will be filled with 0.  The sum of all cell rects does not cover the
12807  * entire tree; there are extra pixels in between rows, for example. The
12808  * returned rectangle is equivalent to the @cell_area passed to
12809  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12810  * realized.
12811  **/
12812 void
12813 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12814                              GtkTreePath        *path,
12815                              GtkTreeViewColumn  *column,
12816                              GdkRectangle       *rect)
12817 {
12818   GtkRBTree *tree = NULL;
12819   GtkRBNode *node = NULL;
12820   gint vertical_separator;
12821   gint horizontal_separator;
12822
12823   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12824   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12825   g_return_if_fail (rect != NULL);
12826   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12827   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12828
12829   gtk_widget_style_get (GTK_WIDGET (tree_view),
12830                         "vertical-separator", &vertical_separator,
12831                         "horizontal-separator", &horizontal_separator,
12832                         NULL);
12833
12834   rect->x = 0;
12835   rect->y = 0;
12836   rect->width = 0;
12837   rect->height = 0;
12838
12839   if (column)
12840     {
12841       rect->x = column->button->allocation.x + horizontal_separator/2;
12842       rect->width = column->button->allocation.width - horizontal_separator;
12843     }
12844
12845   if (path)
12846     {
12847       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12848
12849       /* Get vertical coords */
12850       if ((!ret && tree == NULL) || ret)
12851         return;
12852
12853       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12854       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12855
12856       if (column &&
12857           gtk_tree_view_is_expander_column (tree_view, column))
12858         {
12859           gint depth = gtk_tree_path_get_depth (path);
12860           gboolean rtl;
12861
12862           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12863
12864           if (!rtl)
12865             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12866           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12867
12868           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12869             {
12870               if (!rtl)
12871                 rect->x += depth * tree_view->priv->expander_size;
12872               rect->width -= depth * tree_view->priv->expander_size;
12873             }
12874
12875           rect->width = MAX (rect->width, 0);
12876         }
12877     }
12878 }
12879
12880 /**
12881  * gtk_tree_view_get_background_area:
12882  * @tree_view: a #GtkTreeView
12883  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12884  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12885  * @rect: rectangle to fill with cell background rect
12886  *
12887  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12888  * row specified by @path and the column specified by @column.  If @path is
12889  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12890  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12891  * fields will be filled with 0.  The returned rectangle is equivalent to the
12892  * @background_area passed to gtk_cell_renderer_render().  These background
12893  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12894  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12895  * itself, excluding surrounding borders and the tree expander area.
12896  *
12897  **/
12898 void
12899 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12900                                    GtkTreePath        *path,
12901                                    GtkTreeViewColumn  *column,
12902                                    GdkRectangle       *rect)
12903 {
12904   GtkRBTree *tree = NULL;
12905   GtkRBNode *node = NULL;
12906
12907   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12908   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12909   g_return_if_fail (rect != NULL);
12910
12911   rect->x = 0;
12912   rect->y = 0;
12913   rect->width = 0;
12914   rect->height = 0;
12915
12916   if (path)
12917     {
12918       /* Get vertical coords */
12919
12920       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12921           tree == NULL)
12922         return;
12923
12924       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12925
12926       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12927     }
12928
12929   if (column)
12930     {
12931       gint x2 = 0;
12932
12933       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12934       rect->width = x2 - rect->x;
12935     }
12936 }
12937
12938 /**
12939  * gtk_tree_view_get_visible_rect:
12940  * @tree_view: a #GtkTreeView
12941  * @visible_rect: rectangle to fill
12942  *
12943  * Fills @visible_rect with the currently-visible region of the
12944  * buffer, in tree coordinates. Convert to bin_window coordinates with
12945  * gtk_tree_view_convert_tree_to_bin_window_coords().
12946  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12947  * scrollable area of the tree.
12948  **/
12949 void
12950 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12951                                 GdkRectangle *visible_rect)
12952 {
12953   GtkWidget *widget;
12954
12955   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12956
12957   widget = GTK_WIDGET (tree_view);
12958
12959   if (visible_rect)
12960     {
12961       visible_rect->x = tree_view->priv->hadjustment->value;
12962       visible_rect->y = tree_view->priv->vadjustment->value;
12963       visible_rect->width = widget->allocation.width;
12964       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
12965     }
12966 }
12967
12968 /**
12969  * gtk_tree_view_widget_to_tree_coords:
12970  * @tree_view: a #GtkTreeView
12971  * @wx: X coordinate relative to bin_window
12972  * @wy: Y coordinate relative to bin_window
12973  * @tx: return location for tree X coordinate
12974  * @ty: return location for tree Y coordinate
12975  *
12976  * Converts bin_window coordinates to coordinates for the
12977  * tree (the full scrollable area of the tree).
12978  *
12979  * Deprecated: 2.12: Due to historial reasons the name of this function is
12980  * incorrect.  For converting coordinates relative to the widget to
12981  * bin_window coordinates, please see
12982  * gtk_tree_view_convert_widget_to_bin_window_coords().
12983  *
12984  **/
12985 void
12986 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
12987                                       gint         wx,
12988                                       gint         wy,
12989                                       gint        *tx,
12990                                       gint        *ty)
12991 {
12992   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12993
12994   if (tx)
12995     *tx = wx + tree_view->priv->hadjustment->value;
12996   if (ty)
12997     *ty = wy + tree_view->priv->dy;
12998 }
12999
13000 /**
13001  * gtk_tree_view_tree_to_widget_coords:
13002  * @tree_view: a #GtkTreeView
13003  * @tx: tree X coordinate
13004  * @ty: tree Y coordinate
13005  * @wx: return location for X coordinate relative to bin_window
13006  * @wy: return location for Y coordinate relative to bin_window
13007  *
13008  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13009  * to bin_window coordinates.
13010  *
13011  * Deprecated: 2.12: Due to historial reasons the name of this function is
13012  * incorrect.  For converting bin_window coordinates to coordinates relative
13013  * to bin_window, please see
13014  * gtk_tree_view_convert_bin_window_to_widget_coords().
13015  *
13016  **/
13017 void
13018 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13019                                      gint         tx,
13020                                      gint         ty,
13021                                      gint        *wx,
13022                                      gint        *wy)
13023 {
13024   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13025
13026   if (wx)
13027     *wx = tx - tree_view->priv->hadjustment->value;
13028   if (wy)
13029     *wy = ty - tree_view->priv->dy;
13030 }
13031
13032
13033 /**
13034  * gtk_tree_view_convert_widget_to_tree_coords:
13035  * @tree_view: a #GtkTreeView
13036  * @wx: X coordinate relative to the widget
13037  * @wy: Y coordinate relative to the widget
13038  * @tx: return location for tree X coordinate
13039  * @ty: return location for tree Y coordinate
13040  *
13041  * Converts widget coordinates to coordinates for the
13042  * tree (the full scrollable area of the tree).
13043  *
13044  * Since: 2.12
13045  **/
13046 void
13047 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13048                                              gint         wx,
13049                                              gint         wy,
13050                                              gint        *tx,
13051                                              gint        *ty)
13052 {
13053   gint x, y;
13054
13055   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13056
13057   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13058                                                      wx, wy,
13059                                                      &x, &y);
13060   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13061                                                    x, y,
13062                                                    tx, ty);
13063 }
13064
13065 /**
13066  * gtk_tree_view_convert_tree_to_widget_coords:
13067  * @tree_view: a #GtkTreeView
13068  * @tx: X coordinate relative to the tree
13069  * @ty: Y coordinate relative to the tree
13070  * @wx: return location for widget X coordinate
13071  * @wy: return location for widget Y coordinate
13072  *
13073  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13074  * to widget coordinates.
13075  *
13076  * Since: 2.12
13077  **/
13078 void
13079 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13080                                              gint         tx,
13081                                              gint         ty,
13082                                              gint        *wx,
13083                                              gint        *wy)
13084 {
13085   gint x, y;
13086
13087   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13088
13089   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13090                                                    tx, ty,
13091                                                    &x, &y);
13092   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13093                                                      x, y,
13094                                                      wx, wy);
13095 }
13096
13097 /**
13098  * gtk_tree_view_convert_widget_to_bin_window_coords:
13099  * @tree_view: a #GtkTreeView
13100  * @wx: X coordinate relative to the widget
13101  * @wy: Y coordinate relative to the widget
13102  * @bx: return location for bin_window X coordinate
13103  * @by: return location for bin_window Y coordinate
13104  *
13105  * Converts widget coordinates to coordinates for the bin_window
13106  * (see gtk_tree_view_get_bin_window()).
13107  *
13108  * Since: 2.12
13109  **/
13110 void
13111 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13112                                                    gint         wx,
13113                                                    gint         wy,
13114                                                    gint        *bx,
13115                                                    gint        *by)
13116 {
13117   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13118
13119   if (bx)
13120     *bx = wx + tree_view->priv->hadjustment->value;
13121   if (by)
13122     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13123 }
13124
13125 /**
13126  * gtk_tree_view_convert_bin_window_to_widget_coords:
13127  * @tree_view: a #GtkTreeView
13128  * @bx: bin_window X coordinate
13129  * @by: bin_window Y coordinate
13130  * @wx: return location for widget X coordinate
13131  * @wy: return location for widget Y coordinate
13132  *
13133  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13134  * to widget relative coordinates.
13135  *
13136  * Since: 2.12
13137  **/
13138 void
13139 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13140                                                    gint         bx,
13141                                                    gint         by,
13142                                                    gint        *wx,
13143                                                    gint        *wy)
13144 {
13145   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13146
13147   if (wx)
13148     *wx = bx - tree_view->priv->hadjustment->value;
13149   if (wy)
13150     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13151 }
13152
13153 /**
13154  * gtk_tree_view_convert_tree_to_bin_window_coords:
13155  * @tree_view: a #GtkTreeView
13156  * @tx: tree X coordinate
13157  * @ty: tree Y coordinate
13158  * @bx: return location for X coordinate relative to bin_window
13159  * @by: return location for Y coordinate relative to bin_window
13160  *
13161  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13162  * to bin_window coordinates.
13163  *
13164  * Since: 2.12
13165  **/
13166 void
13167 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13168                                                  gint         tx,
13169                                                  gint         ty,
13170                                                  gint        *bx,
13171                                                  gint        *by)
13172 {
13173   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13174
13175   if (bx)
13176     *bx = tx;
13177   if (by)
13178     *by = ty - tree_view->priv->dy;
13179 }
13180
13181 /**
13182  * gtk_tree_view_convert_bin_window_to_tree_coords:
13183  * @tree_view: a #GtkTreeView
13184  * @bx: X coordinate relative to bin_window
13185  * @by: Y coordinate relative to bin_window
13186  * @tx: return location for tree X coordinate
13187  * @ty: return location for tree Y coordinate
13188  *
13189  * Converts bin_window coordinates to coordinates for the
13190  * tree (the full scrollable area of the tree).
13191  *
13192  * Since: 2.12
13193  **/
13194 void
13195 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13196                                                  gint         bx,
13197                                                  gint         by,
13198                                                  gint        *tx,
13199                                                  gint        *ty)
13200 {
13201   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13202
13203   if (tx)
13204     *tx = bx;
13205   if (ty)
13206     *ty = by + tree_view->priv->dy;
13207 }
13208
13209
13210
13211 /**
13212  * gtk_tree_view_get_visible_range:
13213  * @tree_view: A #GtkTreeView
13214  * @start_path: Return location for start of region, or %NULL.
13215  * @end_path: Return location for end of region, or %NULL.
13216  *
13217  * Sets @start_path and @end_path to be the first and last visible path.
13218  * Note that there may be invisible paths in between.
13219  *
13220  * The paths should be freed with gtk_tree_path_free() after use.
13221  *
13222  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13223  *
13224  * Since: 2.8
13225  **/
13226 gboolean
13227 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13228                                  GtkTreePath **start_path,
13229                                  GtkTreePath **end_path)
13230 {
13231   GtkRBTree *tree;
13232   GtkRBNode *node;
13233   gboolean retval;
13234
13235   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13236
13237   if (!tree_view->priv->tree)
13238     return FALSE;
13239
13240   retval = TRUE;
13241
13242   if (start_path)
13243     {
13244       _gtk_rbtree_find_offset (tree_view->priv->tree,
13245                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13246                                &tree, &node);
13247       if (node)
13248         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13249       else
13250         retval = FALSE;
13251     }
13252
13253   if (end_path)
13254     {
13255       gint y;
13256
13257       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13258         y = tree_view->priv->height - 1;
13259       else
13260         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13261
13262       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13263       if (node)
13264         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13265       else
13266         retval = FALSE;
13267     }
13268
13269   return retval;
13270 }
13271
13272 static void
13273 unset_reorderable (GtkTreeView *tree_view)
13274 {
13275   if (tree_view->priv->reorderable)
13276     {
13277       tree_view->priv->reorderable = FALSE;
13278       g_object_notify (G_OBJECT (tree_view), "reorderable");
13279     }
13280 }
13281
13282 /**
13283  * gtk_tree_view_enable_model_drag_source:
13284  * @tree_view: a #GtkTreeView
13285  * @start_button_mask: Mask of allowed buttons to start drag
13286  * @targets: the table of targets that the drag will support
13287  * @n_targets: the number of items in @targets
13288  * @actions: the bitmask of possible actions for a drag from this
13289  *    widget
13290  *
13291  * Turns @tree_view into a drag source for automatic DND. Calling this
13292  * method sets #GtkTreeView:reorderable to %FALSE.
13293  **/
13294 void
13295 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13296                                         GdkModifierType           start_button_mask,
13297                                         const GtkTargetEntry     *targets,
13298                                         gint                      n_targets,
13299                                         GdkDragAction             actions)
13300 {
13301   TreeViewDragInfo *di;
13302
13303   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13304
13305   gtk_drag_source_set (GTK_WIDGET (tree_view),
13306                        0,
13307                        targets,
13308                        n_targets,
13309                        actions);
13310
13311   di = ensure_info (tree_view);
13312
13313   di->start_button_mask = start_button_mask;
13314   di->source_actions = actions;
13315   di->source_set = TRUE;
13316
13317   unset_reorderable (tree_view);
13318 }
13319
13320 /**
13321  * gtk_tree_view_enable_model_drag_dest:
13322  * @tree_view: a #GtkTreeView
13323  * @targets: the table of targets that the drag will support
13324  * @n_targets: the number of items in @targets
13325  * @actions: the bitmask of possible actions for a drag from this
13326  *    widget
13327  *
13328  * Turns @tree_view into a drop destination for automatic DND. Calling
13329  * this method sets #GtkTreeView:reorderable to %FALSE.
13330  **/
13331 void
13332 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13333                                       const GtkTargetEntry     *targets,
13334                                       gint                      n_targets,
13335                                       GdkDragAction             actions)
13336 {
13337   TreeViewDragInfo *di;
13338
13339   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13340
13341   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13342                      0,
13343                      targets,
13344                      n_targets,
13345                      actions);
13346
13347   di = ensure_info (tree_view);
13348   di->dest_set = TRUE;
13349
13350   unset_reorderable (tree_view);
13351 }
13352
13353 /**
13354  * gtk_tree_view_unset_rows_drag_source:
13355  * @tree_view: a #GtkTreeView
13356  *
13357  * Undoes the effect of
13358  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13359  * #GtkTreeView:reorderable to %FALSE.
13360  **/
13361 void
13362 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13363 {
13364   TreeViewDragInfo *di;
13365
13366   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13367
13368   di = get_info (tree_view);
13369
13370   if (di)
13371     {
13372       if (di->source_set)
13373         {
13374           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13375           di->source_set = FALSE;
13376         }
13377
13378       if (!di->dest_set && !di->source_set)
13379         remove_info (tree_view);
13380     }
13381
13382   unset_reorderable (tree_view);
13383 }
13384
13385 /**
13386  * gtk_tree_view_unset_rows_drag_dest:
13387  * @tree_view: a #GtkTreeView
13388  *
13389  * Undoes the effect of
13390  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13391  * #GtkTreeView:reorderable to %FALSE.
13392  **/
13393 void
13394 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13395 {
13396   TreeViewDragInfo *di;
13397
13398   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13399
13400   di = get_info (tree_view);
13401
13402   if (di)
13403     {
13404       if (di->dest_set)
13405         {
13406           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13407           di->dest_set = FALSE;
13408         }
13409
13410       if (!di->dest_set && !di->source_set)
13411         remove_info (tree_view);
13412     }
13413
13414   unset_reorderable (tree_view);
13415 }
13416
13417 /**
13418  * gtk_tree_view_set_drag_dest_row:
13419  * @tree_view: a #GtkTreeView
13420  * @path: The path of the row to highlight, or %NULL.
13421  * @pos: Specifies whether to drop before, after or into the row
13422  *
13423  * Sets the row that is highlighted for feedback.
13424  **/
13425 void
13426 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13427                                  GtkTreePath            *path,
13428                                  GtkTreeViewDropPosition pos)
13429 {
13430   GtkTreePath *current_dest;
13431
13432   /* Note; this function is exported to allow a custom DND
13433    * implementation, so it can't touch TreeViewDragInfo
13434    */
13435
13436   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13437
13438   current_dest = NULL;
13439
13440   if (tree_view->priv->drag_dest_row)
13441     {
13442       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13443       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13444     }
13445
13446   /* special case a drop on an empty model */
13447   tree_view->priv->empty_view_drop = 0;
13448
13449   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13450       && gtk_tree_path_get_depth (path) == 1
13451       && gtk_tree_path_get_indices (path)[0] == 0)
13452     {
13453       gint n_children;
13454
13455       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13456                                                    NULL);
13457
13458       if (!n_children)
13459         tree_view->priv->empty_view_drop = 1;
13460     }
13461
13462   tree_view->priv->drag_dest_pos = pos;
13463
13464   if (path)
13465     {
13466       tree_view->priv->drag_dest_row =
13467         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13468       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13469     }
13470   else
13471     tree_view->priv->drag_dest_row = NULL;
13472
13473   if (current_dest)
13474     {
13475       GtkRBTree *tree, *new_tree;
13476       GtkRBNode *node, *new_node;
13477
13478       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13479       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13480
13481       if (tree && node)
13482         {
13483           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13484           if (new_tree && new_node)
13485             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13486
13487           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13488           if (new_tree && new_node)
13489             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13490         }
13491       gtk_tree_path_free (current_dest);
13492     }
13493 }
13494
13495 /**
13496  * gtk_tree_view_get_drag_dest_row:
13497  * @tree_view: a #GtkTreeView
13498  * @path: Return location for the path of the highlighted row, or %NULL.
13499  * @pos: Return location for the drop position, or %NULL
13500  *
13501  * Gets information about the row that is highlighted for feedback.
13502  **/
13503 void
13504 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13505                                  GtkTreePath             **path,
13506                                  GtkTreeViewDropPosition  *pos)
13507 {
13508   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13509
13510   if (path)
13511     {
13512       if (tree_view->priv->drag_dest_row)
13513         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13514       else
13515         {
13516           if (tree_view->priv->empty_view_drop)
13517             *path = gtk_tree_path_new_from_indices (0, -1);
13518           else
13519             *path = NULL;
13520         }
13521     }
13522
13523   if (pos)
13524     *pos = tree_view->priv->drag_dest_pos;
13525 }
13526
13527 /**
13528  * gtk_tree_view_get_dest_row_at_pos:
13529  * @tree_view: a #GtkTreeView
13530  * @drag_x: the position to determine the destination row for
13531  * @drag_y: the position to determine the destination row for
13532  * @path: Return location for the path of the highlighted row, or %NULL.
13533  * @pos: Return location for the drop position, or %NULL
13534  *
13535  * Determines the destination row for a given position.  @drag_x and
13536  * @drag_y are expected to be in widget coordinates.  This function is only
13537  * meaningful if @tree_view is realized.  Therefore this function will always
13538  * return %FALSE if @tree_view is not realized or does not have a model.
13539  *
13540  * Return value: whether there is a row at the given position, %TRUE if this
13541  * is indeed the case.
13542  **/
13543 gboolean
13544 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13545                                    gint                     drag_x,
13546                                    gint                     drag_y,
13547                                    GtkTreePath            **path,
13548                                    GtkTreeViewDropPosition *pos)
13549 {
13550   gint cell_y;
13551   gint bin_x, bin_y;
13552   gdouble offset_into_row;
13553   gdouble third;
13554   GdkRectangle cell;
13555   GtkTreeViewColumn *column = NULL;
13556   GtkTreePath *tmp_path = NULL;
13557
13558   /* Note; this function is exported to allow a custom DND
13559    * implementation, so it can't touch TreeViewDragInfo
13560    */
13561
13562   g_return_val_if_fail (tree_view != NULL, FALSE);
13563   g_return_val_if_fail (drag_x >= 0, FALSE);
13564   g_return_val_if_fail (drag_y >= 0, FALSE);
13565
13566   if (path)
13567     *path = NULL;
13568
13569   if (tree_view->priv->bin_window == NULL)
13570     return FALSE;
13571
13572   if (tree_view->priv->tree == NULL)
13573     return FALSE;
13574
13575   /* If in the top third of a row, we drop before that row; if
13576    * in the bottom third, drop after that row; if in the middle,
13577    * and the row has children, drop into the row.
13578    */
13579   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13580                                                      &bin_x, &bin_y);
13581
13582   if (!gtk_tree_view_get_path_at_pos (tree_view,
13583                                       bin_x,
13584                                       bin_y,
13585                                       &tmp_path,
13586                                       &column,
13587                                       NULL,
13588                                       &cell_y))
13589     return FALSE;
13590
13591   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13592                                      &cell);
13593
13594   offset_into_row = cell_y;
13595
13596   if (path)
13597     *path = tmp_path;
13598   else
13599     gtk_tree_path_free (tmp_path);
13600
13601   tmp_path = NULL;
13602
13603   third = cell.height / 3.0;
13604
13605   if (pos)
13606     {
13607       if (offset_into_row < third)
13608         {
13609           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13610         }
13611       else if (offset_into_row < (cell.height / 2.0))
13612         {
13613           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13614         }
13615       else if (offset_into_row < third * 2.0)
13616         {
13617           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13618         }
13619       else
13620         {
13621           *pos = GTK_TREE_VIEW_DROP_AFTER;
13622         }
13623     }
13624
13625   return TRUE;
13626 }
13627
13628
13629
13630 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13631 /**
13632  * gtk_tree_view_create_row_drag_icon:
13633  * @tree_view: a #GtkTreeView
13634  * @path: a #GtkTreePath in @tree_view
13635  *
13636  * Creates a #GdkPixmap representation of the row at @path.
13637  * This image is used for a drag icon.
13638  *
13639  * Return value: a newly-allocated pixmap of the drag icon.
13640  **/
13641 GdkPixmap *
13642 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13643                                     GtkTreePath  *path)
13644 {
13645   GtkTreeIter   iter;
13646   GtkRBTree    *tree;
13647   GtkRBNode    *node;
13648   gint cell_offset;
13649   GList *list;
13650   GdkRectangle background_area;
13651   GdkRectangle expose_area;
13652   GtkWidget *widget;
13653   gint depth;
13654   /* start drawing inside the black outline */
13655   gint x = 1, y = 1;
13656   GdkDrawable *drawable;
13657   gint bin_window_width;
13658   gboolean is_separator = FALSE;
13659   gboolean rtl;
13660
13661   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13662   g_return_val_if_fail (path != NULL, NULL);
13663
13664   widget = GTK_WIDGET (tree_view);
13665
13666   if (!GTK_WIDGET_REALIZED (tree_view))
13667     return NULL;
13668
13669   depth = gtk_tree_path_get_depth (path);
13670
13671   _gtk_tree_view_find_node (tree_view,
13672                             path,
13673                             &tree,
13674                             &node);
13675
13676   if (tree == NULL)
13677     return NULL;
13678
13679   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13680                                 &iter,
13681                                 path))
13682     return NULL;
13683
13684   is_separator = row_is_separator (tree_view, &iter, NULL);
13685
13686   cell_offset = x;
13687
13688   background_area.y = y;
13689   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13690
13691   gdk_drawable_get_size (tree_view->priv->bin_window,
13692                          &bin_window_width, NULL);
13693
13694   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13695                              bin_window_width + 2,
13696                              background_area.height + 2,
13697                              -1);
13698
13699   expose_area.x = 0;
13700   expose_area.y = 0;
13701   expose_area.width = bin_window_width + 2;
13702   expose_area.height = background_area.height + 2;
13703
13704   gdk_draw_rectangle (drawable,
13705                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13706                       TRUE,
13707                       0, 0,
13708                       bin_window_width + 2,
13709                       background_area.height + 2);
13710
13711   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13712
13713   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13714       list;
13715       list = (rtl ? list->prev : list->next))
13716     {
13717       GtkTreeViewColumn *column = list->data;
13718       GdkRectangle cell_area;
13719       gint vertical_separator;
13720
13721       if (!column->visible)
13722         continue;
13723
13724       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13725                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13726                                                node->children?TRUE:FALSE);
13727
13728       background_area.x = cell_offset;
13729       background_area.width = column->width;
13730
13731       gtk_widget_style_get (widget,
13732                             "vertical-separator", &vertical_separator,
13733                             NULL);
13734
13735       cell_area = background_area;
13736
13737       cell_area.y += vertical_separator / 2;
13738       cell_area.height -= vertical_separator;
13739
13740       if (gtk_tree_view_is_expander_column (tree_view, column))
13741         {
13742           if (!rtl)
13743             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13744           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13745
13746           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13747             {
13748               if (!rtl)
13749                 cell_area.x += depth * tree_view->priv->expander_size;
13750               cell_area.width -= depth * tree_view->priv->expander_size;
13751             }
13752         }
13753
13754       if (gtk_tree_view_column_cell_is_visible (column))
13755         {
13756           if (is_separator)
13757             gtk_paint_hline (widget->style,
13758                              drawable,
13759                              GTK_STATE_NORMAL,
13760                              &cell_area,
13761                              widget,
13762                              NULL,
13763                              cell_area.x,
13764                              cell_area.x + cell_area.width,
13765                              cell_area.y + cell_area.height / 2);
13766           else
13767             _gtk_tree_view_column_cell_render (column,
13768                                                drawable,
13769                                                &background_area,
13770                                                &cell_area,
13771                                                &expose_area,
13772                                                0);
13773         }
13774       cell_offset += column->width;
13775     }
13776
13777   gdk_draw_rectangle (drawable,
13778                       widget->style->black_gc,
13779                       FALSE,
13780                       0, 0,
13781                       bin_window_width + 1,
13782                       background_area.height + 1);
13783
13784   return drawable;
13785 }
13786
13787
13788 /**
13789  * gtk_tree_view_set_destroy_count_func:
13790  * @tree_view: A #GtkTreeView
13791  * @func: Function to be called when a view row is destroyed, or %NULL
13792  * @data: User data to be passed to @func, or %NULL
13793  * @destroy: Destroy notifier for @data, or %NULL
13794  *
13795  * This function should almost never be used.  It is meant for private use by
13796  * ATK for determining the number of visible children that are removed when the
13797  * user collapses a row, or a row is deleted.
13798  **/
13799 void
13800 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13801                                       GtkTreeDestroyCountFunc  func,
13802                                       gpointer                 data,
13803                                       GDestroyNotify           destroy)
13804 {
13805   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13806
13807   if (tree_view->priv->destroy_count_destroy)
13808     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13809
13810   tree_view->priv->destroy_count_func = func;
13811   tree_view->priv->destroy_count_data = data;
13812   tree_view->priv->destroy_count_destroy = destroy;
13813 }
13814
13815
13816 /*
13817  * Interactive search
13818  */
13819
13820 /**
13821  * gtk_tree_view_set_enable_search:
13822  * @tree_view: A #GtkTreeView
13823  * @enable_search: %TRUE, if the user can search interactively
13824  *
13825  * If @enable_search is set, then the user can type in text to search through
13826  * the tree interactively (this is sometimes called "typeahead find").
13827  *
13828  * Note that even if this is %FALSE, the user can still initiate a search
13829  * using the "start-interactive-search" key binding.
13830  */
13831 void
13832 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13833                                  gboolean     enable_search)
13834 {
13835   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13836
13837   enable_search = !!enable_search;
13838
13839   if (tree_view->priv->enable_search != enable_search)
13840     {
13841        tree_view->priv->enable_search = enable_search;
13842        g_object_notify (G_OBJECT (tree_view), "enable-search");
13843     }
13844 }
13845
13846 /**
13847  * gtk_tree_view_get_enable_search:
13848  * @tree_view: A #GtkTreeView
13849  *
13850  * Returns whether or not the tree allows to start interactive searching
13851  * by typing in text.
13852  *
13853  * Return value: whether or not to let the user search interactively
13854  */
13855 gboolean
13856 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13857 {
13858   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13859
13860   return tree_view->priv->enable_search;
13861 }
13862
13863
13864 /**
13865  * gtk_tree_view_get_search_column:
13866  * @tree_view: A #GtkTreeView
13867  *
13868  * Gets the column searched on by the interactive search code.
13869  *
13870  * Return value: the column the interactive search code searches in.
13871  */
13872 gint
13873 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13874 {
13875   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13876
13877   return (tree_view->priv->search_column);
13878 }
13879
13880 /**
13881  * gtk_tree_view_set_search_column:
13882  * @tree_view: A #GtkTreeView
13883  * @column: the column of the model to search in, or -1 to disable searching
13884  *
13885  * Sets @column as the column where the interactive search code should
13886  * search in for the current model.
13887  *
13888  * If the search column is set, users can use the "start-interactive-search"
13889  * key binding to bring up search popup. The enable-search property controls
13890  * whether simply typing text will also start an interactive search.
13891  *
13892  * Note that @column refers to a column of the current model. The search
13893  * column is reset to -1 when the model is changed.
13894  */
13895 void
13896 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13897                                  gint         column)
13898 {
13899   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13900   g_return_if_fail (column >= -1);
13901
13902   if (tree_view->priv->search_column == column)
13903     return;
13904
13905   tree_view->priv->search_column = column;
13906   g_object_notify (G_OBJECT (tree_view), "search-column");
13907 }
13908
13909 /**
13910  * gtk_tree_view_get_search_equal_func:
13911  * @tree_view: A #GtkTreeView
13912  *
13913  * Returns the compare function currently in use.
13914  *
13915  * Return value: the currently used compare function for the search code.
13916  */
13917
13918 GtkTreeViewSearchEqualFunc
13919 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13920 {
13921   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13922
13923   return tree_view->priv->search_equal_func;
13924 }
13925
13926 /**
13927  * gtk_tree_view_set_search_equal_func:
13928  * @tree_view: A #GtkTreeView
13929  * @search_equal_func: the compare function to use during the search
13930  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13931  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13932  *
13933  * Sets the compare function for the interactive search capabilities; note
13934  * that somewhat like strcmp() returning 0 for equality
13935  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13936  **/
13937 void
13938 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13939                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13940                                      gpointer                    search_user_data,
13941                                      GDestroyNotify              search_destroy)
13942 {
13943   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13944   g_return_if_fail (search_equal_func != NULL);
13945
13946   if (tree_view->priv->search_destroy)
13947     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
13948
13949   tree_view->priv->search_equal_func = search_equal_func;
13950   tree_view->priv->search_user_data = search_user_data;
13951   tree_view->priv->search_destroy = search_destroy;
13952   if (tree_view->priv->search_equal_func == NULL)
13953     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13954 }
13955
13956 /**
13957  * gtk_tree_view_get_search_entry:
13958  * @tree_view: A #GtkTreeView
13959  *
13960  * Returns the #GtkEntry which is currently in use as interactive search
13961  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13962  * will be returned.
13963  *
13964  * Return value: the entry currently in use as search entry.
13965  *
13966  * Since: 2.10
13967  */
13968 GtkEntry *
13969 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
13970 {
13971   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13972
13973   if (tree_view->priv->search_custom_entry_set)
13974     return GTK_ENTRY (tree_view->priv->search_entry);
13975
13976   return NULL;
13977 }
13978
13979 /**
13980  * gtk_tree_view_set_search_entry:
13981  * @tree_view: A #GtkTreeView
13982  * @entry: the entry the interactive search code of @tree_view should use or %NULL
13983  *
13984  * Sets the entry which the interactive search code will use for this
13985  * @tree_view.  This is useful when you want to provide a search entry
13986  * in our interface at all time at a fixed position.  Passing %NULL for
13987  * @entry will make the interactive search code use the built-in popup
13988  * entry again.
13989  *
13990  * Since: 2.10
13991  */
13992 void
13993 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
13994                                 GtkEntry    *entry)
13995 {
13996   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13997   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
13998
13999   if (tree_view->priv->search_custom_entry_set)
14000     {
14001       if (tree_view->priv->search_entry_changed_id)
14002         {
14003           g_signal_handler_disconnect (tree_view->priv->search_entry,
14004                                        tree_view->priv->search_entry_changed_id);
14005           tree_view->priv->search_entry_changed_id = 0;
14006         }
14007       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14008                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14009                                             tree_view);
14010
14011       g_object_unref (tree_view->priv->search_entry);
14012     }
14013   else if (tree_view->priv->search_window)
14014     {
14015       gtk_widget_destroy (tree_view->priv->search_window);
14016
14017       tree_view->priv->search_window = NULL;
14018     }
14019
14020   if (entry)
14021     {
14022       tree_view->priv->search_entry = g_object_ref (entry);
14023       tree_view->priv->search_custom_entry_set = TRUE;
14024
14025       if (tree_view->priv->search_entry_changed_id == 0)
14026         {
14027           tree_view->priv->search_entry_changed_id =
14028             g_signal_connect (tree_view->priv->search_entry, "changed",
14029                               G_CALLBACK (gtk_tree_view_search_init),
14030                               tree_view);
14031         }
14032
14033         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14034                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14035                           tree_view);
14036
14037         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14038     }
14039   else
14040     {
14041       tree_view->priv->search_entry = NULL;
14042       tree_view->priv->search_custom_entry_set = FALSE;
14043     }
14044 }
14045
14046 /**
14047  * gtk_tree_view_set_search_position_func:
14048  * @tree_view: A #GtkTreeView
14049  * @func: the function to use to position the search dialog, or %NULL
14050  *    to use the default search position function
14051  * @data: user data to pass to @func, or %NULL
14052  * @destroy: Destroy notifier for @data, or %NULL
14053  *
14054  * Sets the function to use when positioning the search dialog.
14055  *
14056  * Since: 2.10
14057  **/
14058 void
14059 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14060                                         GtkTreeViewSearchPositionFunc  func,
14061                                         gpointer                       user_data,
14062                                         GDestroyNotify                 destroy)
14063 {
14064   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14065
14066   if (tree_view->priv->search_position_destroy)
14067     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14068
14069   tree_view->priv->search_position_func = func;
14070   tree_view->priv->search_position_user_data = user_data;
14071   tree_view->priv->search_position_destroy = destroy;
14072   if (tree_view->priv->search_position_func == NULL)
14073     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14074 }
14075
14076 /**
14077  * gtk_tree_view_get_search_position_func:
14078  * @tree_view: A #GtkTreeView
14079  *
14080  * Returns the positioning function currently in use.
14081  *
14082  * Return value: the currently used function for positioning the search dialog.
14083  *
14084  * Since: 2.10
14085  */
14086 GtkTreeViewSearchPositionFunc
14087 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14088 {
14089   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14090
14091   return tree_view->priv->search_position_func;
14092 }
14093
14094
14095 static void
14096 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14097                                   GtkTreeView *tree_view)
14098 {
14099   if (tree_view->priv->disable_popdown)
14100     return;
14101
14102   if (tree_view->priv->search_entry_changed_id)
14103     {
14104       g_signal_handler_disconnect (tree_view->priv->search_entry,
14105                                    tree_view->priv->search_entry_changed_id);
14106       tree_view->priv->search_entry_changed_id = 0;
14107     }
14108   if (tree_view->priv->typeselect_flush_timeout)
14109     {
14110       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14111       tree_view->priv->typeselect_flush_timeout = 0;
14112     }
14113
14114   if (GTK_WIDGET_VISIBLE (search_dialog))
14115     {
14116       /* send focus-in event */
14117       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14118       gtk_widget_hide (search_dialog);
14119       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14120       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14121     }
14122 }
14123
14124 static void
14125 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14126                                     GtkWidget   *search_dialog,
14127                                     gpointer     user_data)
14128 {
14129   gint x, y;
14130   gint tree_x, tree_y;
14131   gint tree_width, tree_height;
14132   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14133   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14134   GtkRequisition requisition;
14135   gint monitor_num;
14136   GdkRectangle monitor;
14137
14138   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14139   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14140
14141   gtk_widget_realize (search_dialog);
14142
14143   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14144   gdk_drawable_get_size (tree_window,
14145                          &tree_width,
14146                          &tree_height);
14147   gtk_widget_size_request (search_dialog, &requisition);
14148
14149   if (tree_x + tree_width > gdk_screen_get_width (screen))
14150     x = gdk_screen_get_width (screen) - requisition.width;
14151   else if (tree_x + tree_width - requisition.width < 0)
14152     x = 0;
14153   else
14154     x = tree_x + tree_width - requisition.width;
14155
14156   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14157     y = gdk_screen_get_height (screen) - requisition.height;
14158   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14159     y = 0;
14160   else
14161     y = tree_y + tree_height;
14162
14163   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14164 }
14165
14166 static void
14167 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14168                                       GtkMenu  *menu,
14169                                       gpointer  data)
14170 {
14171   GtkTreeView *tree_view = (GtkTreeView *)data;
14172
14173   tree_view->priv->disable_popdown = 1;
14174   g_signal_connect (menu, "hide",
14175                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14176 }
14177
14178 /* Because we're visible but offscreen, we just set a flag in the preedit
14179  * callback.
14180  */
14181 static void
14182 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14183                                       GtkTreeView  *tree_view)
14184 {
14185   tree_view->priv->imcontext_changed = 1;
14186   if (tree_view->priv->typeselect_flush_timeout)
14187     {
14188       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14189       tree_view->priv->typeselect_flush_timeout =
14190         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14191                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14192                        tree_view);
14193     }
14194
14195 }
14196
14197 static void
14198 gtk_tree_view_search_activate (GtkEntry    *entry,
14199                                GtkTreeView *tree_view)
14200 {
14201   GtkTreePath *path;
14202   GtkRBNode *node;
14203   GtkRBTree *tree;
14204
14205   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14206                                     tree_view);
14207
14208   /* If we have a row selected and it's the cursor row, we activate
14209    * the row XXX */
14210   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14211     {
14212       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14213
14214       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14215
14216       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14217         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14218
14219       gtk_tree_path_free (path);
14220     }
14221 }
14222
14223 static gboolean
14224 gtk_tree_view_real_search_enable_popdown (gpointer data)
14225 {
14226   GtkTreeView *tree_view = (GtkTreeView *)data;
14227
14228   tree_view->priv->disable_popdown = 0;
14229
14230   return FALSE;
14231 }
14232
14233 static void
14234 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14235                                      gpointer   data)
14236 {
14237   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14238 }
14239
14240 static gboolean
14241 gtk_tree_view_search_delete_event (GtkWidget *widget,
14242                                    GdkEventAny *event,
14243                                    GtkTreeView *tree_view)
14244 {
14245   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14246
14247   gtk_tree_view_search_dialog_hide (widget, tree_view);
14248
14249   return TRUE;
14250 }
14251
14252 static gboolean
14253 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14254                                          GdkEventButton *event,
14255                                          GtkTreeView *tree_view)
14256 {
14257   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14258
14259   gtk_tree_view_search_dialog_hide (widget, tree_view);
14260
14261   if (event->window == tree_view->priv->bin_window)
14262     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14263
14264   return TRUE;
14265 }
14266
14267 static gboolean
14268 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14269                                    GdkEventScroll *event,
14270                                    GtkTreeView *tree_view)
14271 {
14272   gboolean retval = FALSE;
14273
14274   if (event->direction == GDK_SCROLL_UP)
14275     {
14276       gtk_tree_view_search_move (widget, tree_view, TRUE);
14277       retval = TRUE;
14278     }
14279   else if (event->direction == GDK_SCROLL_DOWN)
14280     {
14281       gtk_tree_view_search_move (widget, tree_view, FALSE);
14282       retval = TRUE;
14283     }
14284
14285   /* renew the flush timeout */
14286   if (retval && tree_view->priv->typeselect_flush_timeout
14287       && !tree_view->priv->search_custom_entry_set)
14288     {
14289       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14290       tree_view->priv->typeselect_flush_timeout =
14291         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14292                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14293                        tree_view);
14294     }
14295
14296   return retval;
14297 }
14298
14299 static gboolean
14300 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14301                                       GdkEventKey *event,
14302                                       GtkTreeView *tree_view)
14303 {
14304   gboolean retval = FALSE;
14305
14306   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14307   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14308
14309   /* close window and cancel the search */
14310   if (!tree_view->priv->search_custom_entry_set
14311       && (event->keyval == GDK_Escape ||
14312           event->keyval == GDK_Tab ||
14313             event->keyval == GDK_KP_Tab ||
14314             event->keyval == GDK_ISO_Left_Tab))
14315     {
14316       gtk_tree_view_search_dialog_hide (widget, tree_view);
14317       return TRUE;
14318     }
14319
14320   /* select previous matching iter */
14321   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14322     {
14323       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14324         gtk_widget_error_bell (widget);
14325
14326       retval = TRUE;
14327     }
14328
14329   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14330       && (event->keyval == GDK_g || event->keyval == GDK_G))
14331     {
14332       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14333         gtk_widget_error_bell (widget);
14334
14335       retval = TRUE;
14336     }
14337
14338   /* select next matching iter */
14339   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14340     {
14341       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14342         gtk_widget_error_bell (widget);
14343
14344       retval = TRUE;
14345     }
14346
14347   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14348       && (event->keyval == GDK_g || event->keyval == GDK_G))
14349     {
14350       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14351         gtk_widget_error_bell (widget);
14352
14353       retval = TRUE;
14354     }
14355
14356   /* renew the flush timeout */
14357   if (retval && tree_view->priv->typeselect_flush_timeout
14358       && !tree_view->priv->search_custom_entry_set)
14359     {
14360       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14361       tree_view->priv->typeselect_flush_timeout =
14362         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14363                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14364                        tree_view);
14365     }
14366
14367   return retval;
14368 }
14369
14370 /*  this function returns FALSE if there is a search string but
14371  *  nothing was found, and TRUE otherwise.
14372  */
14373 static gboolean
14374 gtk_tree_view_search_move (GtkWidget   *window,
14375                            GtkTreeView *tree_view,
14376                            gboolean     up)
14377 {
14378   gboolean ret;
14379   gint len;
14380   gint count = 0;
14381   const gchar *text;
14382   GtkTreeIter iter;
14383   GtkTreeModel *model;
14384   GtkTreeSelection *selection;
14385
14386   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14387
14388   g_return_val_if_fail (text != NULL, FALSE);
14389
14390   len = strlen (text);
14391
14392   if (up && tree_view->priv->selected_iter == 1)
14393     return strlen (text) < 1;
14394
14395   len = strlen (text);
14396
14397   if (len < 1)
14398     return TRUE;
14399
14400   model = gtk_tree_view_get_model (tree_view);
14401   selection = gtk_tree_view_get_selection (tree_view);
14402
14403   /* search */
14404   gtk_tree_selection_unselect_all (selection);
14405   if (!gtk_tree_model_get_iter_first (model, &iter))
14406     return TRUE;
14407
14408   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14409                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14410
14411   if (ret)
14412     {
14413       /* found */
14414       tree_view->priv->selected_iter += up?(-1):(1);
14415       return TRUE;
14416     }
14417   else
14418     {
14419       /* return to old iter */
14420       count = 0;
14421       gtk_tree_model_get_iter_first (model, &iter);
14422       gtk_tree_view_search_iter (model, selection,
14423                                  &iter, text,
14424                                  &count, tree_view->priv->selected_iter);
14425       return FALSE;
14426     }
14427 }
14428
14429 static gboolean
14430 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14431                                  gint          column,
14432                                  const gchar  *key,
14433                                  GtkTreeIter  *iter,
14434                                  gpointer      search_data)
14435 {
14436   gboolean retval = TRUE;
14437   const gchar *str;
14438   gchar *normalized_string;
14439   gchar *normalized_key;
14440   gchar *case_normalized_string = NULL;
14441   gchar *case_normalized_key = NULL;
14442   GValue value = {0,};
14443   GValue transformed = {0,};
14444
14445   gtk_tree_model_get_value (model, iter, column, &value);
14446
14447   g_value_init (&transformed, G_TYPE_STRING);
14448
14449   if (!g_value_transform (&value, &transformed))
14450     {
14451       g_value_unset (&value);
14452       return TRUE;
14453     }
14454
14455   g_value_unset (&value);
14456
14457   str = g_value_get_string (&transformed);
14458   if (!str)
14459     {
14460       g_value_unset (&transformed);
14461       return TRUE;
14462     }
14463
14464   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14465   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14466
14467   if (normalized_string && normalized_key)
14468     {
14469       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14470       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14471
14472       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14473         retval = FALSE;
14474     }
14475
14476   g_value_unset (&transformed);
14477   g_free (normalized_key);
14478   g_free (normalized_string);
14479   g_free (case_normalized_key);
14480   g_free (case_normalized_string);
14481
14482   return retval;
14483 }
14484
14485 static gboolean
14486 gtk_tree_view_search_iter (GtkTreeModel     *model,
14487                            GtkTreeSelection *selection,
14488                            GtkTreeIter      *iter,
14489                            const gchar      *text,
14490                            gint             *count,
14491                            gint              n)
14492 {
14493   GtkRBTree *tree = NULL;
14494   GtkRBNode *node = NULL;
14495   GtkTreePath *path;
14496
14497   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14498
14499   path = gtk_tree_model_get_path (model, iter);
14500   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14501
14502   do
14503     {
14504       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14505         {
14506           (*count)++;
14507           if (*count == n)
14508             {
14509               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14510                                             TRUE, 0.5, 0.0);
14511               gtk_tree_selection_select_iter (selection, iter);
14512               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14513
14514               if (path)
14515                 gtk_tree_path_free (path);
14516
14517               return TRUE;
14518             }
14519         }
14520
14521       if (node->children)
14522         {
14523           gboolean has_child;
14524           GtkTreeIter tmp;
14525
14526           tree = node->children;
14527           node = tree->root;
14528
14529           while (node->left != tree->nil)
14530             node = node->left;
14531
14532           tmp = *iter;
14533           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14534           gtk_tree_path_down (path);
14535
14536           /* sanity check */
14537           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14538         }
14539       else
14540         {
14541           gboolean done = FALSE;
14542
14543           do
14544             {
14545               node = _gtk_rbtree_next (tree, node);
14546
14547               if (node)
14548                 {
14549                   gboolean has_next;
14550
14551                   has_next = gtk_tree_model_iter_next (model, iter);
14552
14553                   done = TRUE;
14554                   gtk_tree_path_next (path);
14555
14556                   /* sanity check */
14557                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14558                 }
14559               else
14560                 {
14561                   gboolean has_parent;
14562                   GtkTreeIter tmp_iter = *iter;
14563
14564                   node = tree->parent_node;
14565                   tree = tree->parent_tree;
14566
14567                   if (!tree)
14568                     {
14569                       if (path)
14570                         gtk_tree_path_free (path);
14571
14572                       /* we've run out of tree, done with this func */
14573                       return FALSE;
14574                     }
14575
14576                   has_parent = gtk_tree_model_iter_parent (model,
14577                                                            iter,
14578                                                            &tmp_iter);
14579                   gtk_tree_path_up (path);
14580
14581                   /* sanity check */
14582                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14583                 }
14584             }
14585           while (!done);
14586         }
14587     }
14588   while (1);
14589
14590   return FALSE;
14591 }
14592
14593 static void
14594 gtk_tree_view_search_init (GtkWidget   *entry,
14595                            GtkTreeView *tree_view)
14596 {
14597   gint ret;
14598   gint count = 0;
14599   const gchar *text;
14600   GtkTreeIter iter;
14601   GtkTreeModel *model;
14602   GtkTreeSelection *selection;
14603
14604   g_return_if_fail (GTK_IS_ENTRY (entry));
14605   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14606
14607   text = gtk_entry_get_text (GTK_ENTRY (entry));
14608
14609   model = gtk_tree_view_get_model (tree_view);
14610   selection = gtk_tree_view_get_selection (tree_view);
14611
14612   /* search */
14613   gtk_tree_selection_unselect_all (selection);
14614   if (tree_view->priv->typeselect_flush_timeout
14615       && !tree_view->priv->search_custom_entry_set)
14616     {
14617       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14618       tree_view->priv->typeselect_flush_timeout =
14619         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14620                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14621                        tree_view);
14622     }
14623
14624   if (*text == '\0')
14625     return;
14626
14627   if (!gtk_tree_model_get_iter_first (model, &iter))
14628     return;
14629
14630   ret = gtk_tree_view_search_iter (model, selection,
14631                                    &iter, text,
14632                                    &count, 1);
14633
14634   if (ret)
14635     tree_view->priv->selected_iter = 1;
14636 }
14637
14638 static void
14639 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14640                              GtkTreeView     *tree_view)
14641 {
14642   if (tree_view->priv->edited_column == NULL)
14643     return;
14644
14645   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14646   tree_view->priv->edited_column = NULL;
14647
14648   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14649     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14650
14651   g_signal_handlers_disconnect_by_func (cell_editable,
14652                                         gtk_tree_view_remove_widget,
14653                                         tree_view);
14654
14655   gtk_container_remove (GTK_CONTAINER (tree_view),
14656                         GTK_WIDGET (cell_editable));
14657
14658   /* FIXME should only redraw a single node */
14659   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14660 }
14661
14662 static gboolean
14663 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14664                              GtkTreePath *cursor_path)
14665 {
14666   GtkTreeIter iter;
14667   GdkRectangle background_area;
14668   GdkRectangle cell_area;
14669   GtkCellEditable *editable_widget = NULL;
14670   gchar *path_string;
14671   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14672   gint retval = FALSE;
14673   GtkRBTree *cursor_tree;
14674   GtkRBNode *cursor_node;
14675
14676   g_assert (tree_view->priv->focus_column);
14677
14678   if (! GTK_WIDGET_REALIZED (tree_view))
14679     return FALSE;
14680
14681   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14682       cursor_node == NULL)
14683     return FALSE;
14684
14685   path_string = gtk_tree_path_to_string (cursor_path);
14686   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14687
14688   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14689
14690   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14691                                            tree_view->priv->model,
14692                                            &iter,
14693                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14694                                            cursor_node->children?TRUE:FALSE);
14695   gtk_tree_view_get_background_area (tree_view,
14696                                      cursor_path,
14697                                      tree_view->priv->focus_column,
14698                                      &background_area);
14699   gtk_tree_view_get_cell_area (tree_view,
14700                                cursor_path,
14701                                tree_view->priv->focus_column,
14702                                &cell_area);
14703
14704   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14705                                         &editable_widget,
14706                                         NULL,
14707                                         path_string,
14708                                         &background_area,
14709                                         &cell_area,
14710                                         flags))
14711     {
14712       retval = TRUE;
14713       if (editable_widget != NULL)
14714         {
14715           gint left, right;
14716           GdkRectangle area;
14717           GtkCellRenderer *cell;
14718
14719           area = cell_area;
14720           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14721
14722           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14723
14724           area.x += left;
14725           area.width -= right + left;
14726
14727           gtk_tree_view_real_start_editing (tree_view,
14728                                             tree_view->priv->focus_column,
14729                                             cursor_path,
14730                                             editable_widget,
14731                                             &area,
14732                                             NULL,
14733                                             flags);
14734         }
14735
14736     }
14737   g_free (path_string);
14738   return retval;
14739 }
14740
14741 static void
14742 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14743                                   GtkTreeViewColumn *column,
14744                                   GtkTreePath       *path,
14745                                   GtkCellEditable   *cell_editable,
14746                                   GdkRectangle      *cell_area,
14747                                   GdkEvent          *event,
14748                                   guint              flags)
14749 {
14750   gint pre_val = tree_view->priv->vadjustment->value;
14751   GtkRequisition requisition;
14752
14753   tree_view->priv->edited_column = column;
14754   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14755
14756   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14757   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14758
14759   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14760
14761   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14762
14763   if (requisition.height < cell_area->height)
14764     {
14765       gint diff = cell_area->height - requisition.height;
14766       gtk_tree_view_put (tree_view,
14767                          GTK_WIDGET (cell_editable),
14768                          cell_area->x, cell_area->y + diff/2,
14769                          cell_area->width, requisition.height);
14770     }
14771   else
14772     {
14773       gtk_tree_view_put (tree_view,
14774                          GTK_WIDGET (cell_editable),
14775                          cell_area->x, cell_area->y,
14776                          cell_area->width, cell_area->height);
14777     }
14778
14779   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14780                                    (GdkEvent *)event);
14781
14782   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14783   g_signal_connect (cell_editable, "remove-widget",
14784                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14785 }
14786
14787 static void
14788 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14789                             gboolean     cancel_editing)
14790 {
14791   GtkTreeViewColumn *column;
14792   GtkCellRenderer *cell;
14793
14794   if (tree_view->priv->edited_column == NULL)
14795     return;
14796
14797   /*
14798    * This is very evil. We need to do this, because
14799    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14800    * later on. If gtk_tree_view_row_changed notices
14801    * tree_view->priv->edited_column != NULL, it'll call
14802    * gtk_tree_view_stop_editing again. Bad things will happen then.
14803    *
14804    * Please read that again if you intend to modify anything here.
14805    */
14806
14807   column = tree_view->priv->edited_column;
14808   tree_view->priv->edited_column = NULL;
14809
14810   cell = _gtk_tree_view_column_get_edited_cell (column);
14811   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14812
14813   if (!cancel_editing)
14814     gtk_cell_editable_editing_done (column->editable_widget);
14815
14816   tree_view->priv->edited_column = column;
14817
14818   gtk_cell_editable_remove_widget (column->editable_widget);
14819 }
14820
14821
14822 /**
14823  * gtk_tree_view_set_hover_selection:
14824  * @tree_view: a #GtkTreeView
14825  * @hover: %TRUE to enable hover selection mode
14826  *
14827  * Enables of disables the hover selection mode of @tree_view.
14828  * Hover selection makes the selected row follow the pointer.
14829  * Currently, this works only for the selection modes
14830  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14831  *
14832  * Since: 2.6
14833  **/
14834 void
14835 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14836                                    gboolean     hover)
14837 {
14838   hover = hover != FALSE;
14839
14840   if (hover != tree_view->priv->hover_selection)
14841     {
14842       tree_view->priv->hover_selection = hover;
14843
14844       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14845     }
14846 }
14847
14848 /**
14849  * gtk_tree_view_get_hover_selection:
14850  * @tree_view: a #GtkTreeView
14851  *
14852  * Returns whether hover selection mode is turned on for @tree_view.
14853  *
14854  * Return value: %TRUE if @tree_view is in hover selection mode
14855  *
14856  * Since: 2.6
14857  **/
14858 gboolean
14859 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14860 {
14861   return tree_view->priv->hover_selection;
14862 }
14863
14864 /**
14865  * gtk_tree_view_set_hover_expand:
14866  * @tree_view: a #GtkTreeView
14867  * @expand: %TRUE to enable hover selection mode
14868  *
14869  * Enables of disables the hover expansion mode of @tree_view.
14870  * Hover expansion makes rows expand or collapse if the pointer
14871  * moves over them.
14872  *
14873  * Since: 2.6
14874  **/
14875 void
14876 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14877                                 gboolean     expand)
14878 {
14879   expand = expand != FALSE;
14880
14881   if (expand != tree_view->priv->hover_expand)
14882     {
14883       tree_view->priv->hover_expand = expand;
14884
14885       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14886     }
14887 }
14888
14889 /**
14890  * gtk_tree_view_get_hover_expand:
14891  * @tree_view: a #GtkTreeView
14892  *
14893  * Returns whether hover expansion mode is turned on for @tree_view.
14894  *
14895  * Return value: %TRUE if @tree_view is in hover expansion mode
14896  *
14897  * Since: 2.6
14898  **/
14899 gboolean
14900 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14901 {
14902   return tree_view->priv->hover_expand;
14903 }
14904
14905 /**
14906  * gtk_tree_view_set_rubber_banding:
14907  * @tree_view: a #GtkTreeView
14908  * @enable: %TRUE to enable rubber banding
14909  *
14910  * Enables or disables rubber banding in @tree_view.  If the selection mode
14911  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14912  * multiple rows by dragging the mouse.
14913  *
14914  * Since: 2.10
14915  **/
14916 void
14917 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14918                                   gboolean     enable)
14919 {
14920   enable = enable != FALSE;
14921
14922   if (enable != tree_view->priv->rubber_banding_enable)
14923     {
14924       tree_view->priv->rubber_banding_enable = enable;
14925
14926       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14927     }
14928 }
14929
14930 /**
14931  * gtk_tree_view_get_rubber_banding:
14932  * @tree_view: a #GtkTreeView
14933  *
14934  * Returns whether rubber banding is turned on for @tree_view.  If the
14935  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14936  * user to select multiple rows by dragging the mouse.
14937  *
14938  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14939  *
14940  * Since: 2.10
14941  **/
14942 gboolean
14943 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14944 {
14945   return tree_view->priv->rubber_banding_enable;
14946 }
14947
14948 /**
14949  * gtk_tree_view_is_rubber_banding_active:
14950  * @tree_view: a #GtkTreeView
14951  *
14952  * Returns whether a rubber banding operation is currently being done
14953  * in @tree_view.
14954  *
14955  * Return value: %TRUE if a rubber banding operation is currently being
14956  * done in @tree_view.
14957  *
14958  * Since: 2.12
14959  **/
14960 gboolean
14961 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
14962 {
14963   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14964
14965   if (tree_view->priv->rubber_banding_enable
14966       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
14967     return TRUE;
14968
14969   return FALSE;
14970 }
14971
14972 /**
14973  * gtk_tree_view_get_row_separator_func:
14974  * @tree_view: a #GtkTreeView
14975  *
14976  * Returns the current row separator function.
14977  *
14978  * Return value: the current row separator function.
14979  *
14980  * Since: 2.6
14981  **/
14982 GtkTreeViewRowSeparatorFunc
14983 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
14984 {
14985   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14986
14987   return tree_view->priv->row_separator_func;
14988 }
14989
14990 /**
14991  * gtk_tree_view_set_row_separator_func:
14992  * @tree_view: a #GtkTreeView
14993  * @func: a #GtkTreeViewRowSeparatorFunc
14994  * @data: user data to pass to @func, or %NULL
14995  * @destroy: destroy notifier for @data, or %NULL
14996  *
14997  * Sets the row separator function, which is used to determine
14998  * whether a row should be drawn as a separator. If the row separator
14999  * function is %NULL, no separators are drawn. This is the default value.
15000  *
15001  * Since: 2.6
15002  **/
15003 void
15004 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15005                                       GtkTreeViewRowSeparatorFunc  func,
15006                                       gpointer                     data,
15007                                       GDestroyNotify               destroy)
15008 {
15009   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15010
15011   if (tree_view->priv->row_separator_destroy)
15012     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15013
15014   tree_view->priv->row_separator_func = func;
15015   tree_view->priv->row_separator_data = data;
15016   tree_view->priv->row_separator_destroy = destroy;
15017
15018   /* Have the tree recalculate heights */
15019   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
15020   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
15021 }
15022
15023
15024 static void
15025 gtk_tree_view_grab_notify (GtkWidget *widget,
15026                            gboolean   was_grabbed)
15027 {
15028   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15029
15030   tree_view->priv->in_grab = !was_grabbed;
15031
15032   if (!was_grabbed)
15033     {
15034       tree_view->priv->pressed_button = -1;
15035
15036       if (tree_view->priv->rubber_band_status)
15037         gtk_tree_view_stop_rubber_band (tree_view);
15038     }
15039 }
15040
15041 static void
15042 gtk_tree_view_state_changed (GtkWidget      *widget,
15043                              GtkStateType    previous_state)
15044 {
15045   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15046
15047   if (GTK_WIDGET_REALIZED (widget))
15048     {
15049       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15050       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15051     }
15052
15053   gtk_widget_queue_draw (widget);
15054 }
15055
15056 /**
15057  * gtk_tree_view_get_grid_lines:
15058  * @tree_view: a #GtkTreeView
15059  *
15060  * Returns which grid lines are enabled in @tree_view.
15061  *
15062  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15063  * are enabled.
15064  *
15065  * Since: 2.10
15066  */
15067 GtkTreeViewGridLines
15068 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15069 {
15070   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15071
15072   return tree_view->priv->grid_lines;
15073 }
15074
15075 /**
15076  * gtk_tree_view_set_grid_lines:
15077  * @tree_view: a #GtkTreeView
15078  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15079  * enable.
15080  *
15081  * Sets which grid lines to draw in @tree_view.
15082  *
15083  * Since: 2.10
15084  */
15085 void
15086 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15087                               GtkTreeViewGridLines   grid_lines)
15088 {
15089   GtkTreeViewPrivate *priv;
15090   GtkWidget *widget;
15091   GtkTreeViewGridLines old_grid_lines;
15092
15093   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15094
15095   priv = tree_view->priv;
15096   widget = GTK_WIDGET (tree_view);
15097
15098   old_grid_lines = priv->grid_lines;
15099   priv->grid_lines = grid_lines;
15100
15101   if (GTK_WIDGET_REALIZED (widget))
15102     {
15103       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15104           priv->grid_line_gc)
15105         {
15106           g_object_unref (priv->grid_line_gc);
15107           priv->grid_line_gc = NULL;
15108         }
15109
15110       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15111           !priv->grid_line_gc)
15112         {
15113           gint line_width;
15114           gint8 *dash_list;
15115
15116           gtk_widget_style_get (widget,
15117                                 "grid-line-width", &line_width,
15118                                 "grid-line-pattern", (gchar *)&dash_list,
15119                                 NULL);
15120
15121           priv->grid_line_gc = gdk_gc_new (widget->window);
15122           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15123
15124           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15125                                       GDK_LINE_ON_OFF_DASH,
15126                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15127           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15128
15129           g_free (dash_list);
15130         }
15131     }
15132
15133   if (old_grid_lines != grid_lines)
15134     {
15135       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15136
15137       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15138     }
15139 }
15140
15141 /**
15142  * gtk_tree_view_get_enable_tree_lines:
15143  * @tree_view: a #GtkTreeView.
15144  *
15145  * Returns whether or not tree lines are drawn in @tree_view.
15146  *
15147  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15148  * otherwise.
15149  *
15150  * Since: 2.10
15151  */
15152 gboolean
15153 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15154 {
15155   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15156
15157   return tree_view->priv->tree_lines_enabled;
15158 }
15159
15160 /**
15161  * gtk_tree_view_set_enable_tree_lines:
15162  * @tree_view: a #GtkTreeView
15163  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15164  *
15165  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15166  * This does not have any visible effects for lists.
15167  *
15168  * Since: 2.10
15169  */
15170 void
15171 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15172                                      gboolean     enabled)
15173 {
15174   GtkTreeViewPrivate *priv;
15175   GtkWidget *widget;
15176   gboolean was_enabled;
15177
15178   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15179
15180   enabled = enabled != FALSE;
15181
15182   priv = tree_view->priv;
15183   widget = GTK_WIDGET (tree_view);
15184
15185   was_enabled = priv->tree_lines_enabled;
15186
15187   priv->tree_lines_enabled = enabled;
15188
15189   if (GTK_WIDGET_REALIZED (widget))
15190     {
15191       if (!enabled && priv->tree_line_gc)
15192         {
15193           g_object_unref (priv->tree_line_gc);
15194           priv->tree_line_gc = NULL;
15195         }
15196
15197       if (enabled && !priv->tree_line_gc)
15198         {
15199           gint line_width;
15200           gint8 *dash_list;
15201           gtk_widget_style_get (widget,
15202                                 "tree-line-width", &line_width,
15203                                 "tree-line-pattern", (gchar *)&dash_list,
15204                                 NULL);
15205
15206           priv->tree_line_gc = gdk_gc_new (widget->window);
15207           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15208
15209           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15210                                       GDK_LINE_ON_OFF_DASH,
15211                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15212           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15213
15214           g_free (dash_list);
15215         }
15216     }
15217
15218   if (was_enabled != enabled)
15219     {
15220       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15221
15222       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15223     }
15224 }
15225
15226
15227 /**
15228  * gtk_tree_view_set_show_expanders:
15229  * @tree_view: a #GtkTreeView
15230  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15231  *
15232  * Sets whether to draw and enable expanders and indent child rows in
15233  * @tree_view.  When disabled there will be no expanders visible in trees
15234  * and there will be no way to expand and collapse rows by default.  Also
15235  * note that hiding the expanders will disable the default indentation.  You
15236  * can set a custom indentation in this case using
15237  * gtk_tree_view_set_level_indentation().
15238  * This does not have any visible effects for lists.
15239  *
15240  * Since: 2.12
15241  */
15242 void
15243 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15244                                   gboolean     enabled)
15245 {
15246   gboolean was_enabled;
15247
15248   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15249
15250   enabled = enabled != FALSE;
15251   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15252
15253   if (enabled)
15254     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15255   else
15256     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15257
15258   if (enabled != was_enabled)
15259     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15260 }
15261
15262 /**
15263  * gtk_tree_view_get_show_expanders:
15264  * @tree_view: a #GtkTreeView.
15265  *
15266  * Returns whether or not expanders are drawn in @tree_view.
15267  *
15268  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15269  * otherwise.
15270  *
15271  * Since: 2.12
15272  */
15273 gboolean
15274 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15275 {
15276   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15277
15278   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15279 }
15280
15281 /**
15282  * gtk_tree_view_set_level_indentation:
15283  * @tree_view: a #GtkTreeView
15284  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15285  *
15286  * Sets the amount of extra indentation for child levels to use in @tree_view
15287  * in addition to the default indentation.  The value should be specified in
15288  * pixels, a value of 0 disables this feature and in this case only the default
15289  * indentation will be used.
15290  * This does not have any visible effects for lists.
15291  *
15292  * Since: 2.12
15293  */
15294 void
15295 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15296                                      gint         indentation)
15297 {
15298   tree_view->priv->level_indentation = indentation;
15299
15300   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15301 }
15302
15303 /**
15304  * gtk_tree_view_get_level_indentation:
15305  * @tree_view: a #GtkTreeView.
15306  *
15307  * Returns the amount, in pixels, of extra indentation for child levels
15308  * in @tree_view.
15309  *
15310  * Return value: the amount of extra indentation for child levels in
15311  * @tree_view.  A return value of 0 means that this feature is disabled.
15312  *
15313  * Since: 2.12
15314  */
15315 gint
15316 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15317 {
15318   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15319
15320   return tree_view->priv->level_indentation;
15321 }
15322
15323 /**
15324  * gtk_tree_view_set_tooltip_row:
15325  * @tree_view: a #GtkTreeView
15326  * @tooltip: a #GtkTooltip
15327  * @path: a #GtkTreePath
15328  *
15329  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15330  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15331  * See also gtk_tooltip_set_tip_area().
15332  *
15333  * Since: 2.12
15334  */
15335 void
15336 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15337                                GtkTooltip  *tooltip,
15338                                GtkTreePath *path)
15339 {
15340   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15341   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15342
15343   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15344 }
15345
15346 /**
15347  * gtk_tree_view_set_tooltip_cell:
15348  * @tree_view: a #GtkTreeView
15349  * @tooltip: a #GtkTooltip
15350  * @path: a #GtkTreePath or %NULL
15351  * @column: a #GtkTreeViewColumn or %NULL
15352  * @cell: a #GtkCellRenderer or %NULL
15353  *
15354  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15355  * in common.  For example if @path is %NULL and @column is set, the tip
15356  * area will be set to the full area covered by @column.  See also
15357  * gtk_tooltip_set_tip_area().
15358  *
15359  * Note that if @path is not specified and @cell is set and part of a column
15360  * containing the expander, the tooltip might not show and hide at the correct
15361  * position.  In such cases @path must be set to the current node under the
15362  * mouse cursor for this function to operate correctly.
15363  *
15364  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15365  *
15366  * Since: 2.12
15367  */
15368 void
15369 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15370                                 GtkTooltip        *tooltip,
15371                                 GtkTreePath       *path,
15372                                 GtkTreeViewColumn *column,
15373                                 GtkCellRenderer   *cell)
15374 {
15375   GdkRectangle rect;
15376
15377   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15378   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15379   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15380   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15381
15382   /* Determine x values. */
15383   if (column && cell)
15384     {
15385       GdkRectangle tmp;
15386       gint start, width;
15387
15388       /* We always pass in path here, whether it is NULL or not.
15389        * For cells in expander columns path must be specified so that
15390        * we can correctly account for the indentation.  This also means
15391        * that the tooltip is constrained vertically by the "Determine y
15392        * values" code below; this is not a real problem since cells actually
15393        * don't stretch vertically in constrast to columns.
15394        */
15395       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15396       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15397
15398       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15399                                                          tmp.x + start, 0,
15400                                                          &rect.x, NULL);
15401       rect.width = width;
15402     }
15403   else if (column)
15404     {
15405       GdkRectangle tmp;
15406
15407       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15408       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15409                                                          tmp.x, 0,
15410                                                          &rect.x, NULL);
15411       rect.width = tmp.width;
15412     }
15413   else
15414     {
15415       rect.x = 0;
15416       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15417     }
15418
15419   /* Determine y values. */
15420   if (path)
15421     {
15422       GdkRectangle tmp;
15423
15424       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15425       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15426                                                          0, tmp.y,
15427                                                          NULL, &rect.y);
15428       rect.height = tmp.height;
15429     }
15430   else
15431     {
15432       rect.y = 0;
15433       rect.height = tree_view->priv->vadjustment->page_size;
15434     }
15435
15436   gtk_tooltip_set_tip_area (tooltip, &rect);
15437 }
15438
15439 /**
15440  * gtk_tree_view_get_tooltip_context:
15441  * @tree_view: a #GtkTreeView
15442  * @x: the x coordinate (relative to widget coordinates)
15443  * @y: the y coordinate (relative to widget coordinates)
15444  * @keyboard_tip: whether this is a keyboard tooltip or not
15445  * @model: a pointer to receive a #GtkTreeModel or %NULL
15446  * @path: a pointer to receive a #GtkTreePath or %NULL
15447  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15448  *
15449  * This function is supposed to be used in a #GtkWidget::query-tooltip
15450  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15451  * which are received in the signal handler, should be passed to this
15452  * function without modification.
15453  *
15454  * The return value indicates whether there is a tree view row at the given
15455  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15456  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15457  * @model, @path and @iter which have been provided will be set to point to
15458  * that row and the corresponding model.  @x and @y will always be converted
15459  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15460  *
15461  * Return value: whether or not the given tooltip context points to a row.
15462  *
15463  * Since: 2.12
15464  */
15465 gboolean
15466 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15467                                    gint          *x,
15468                                    gint          *y,
15469                                    gboolean       keyboard_tip,
15470                                    GtkTreeModel **model,
15471                                    GtkTreePath  **path,
15472                                    GtkTreeIter   *iter)
15473 {
15474   GtkTreePath *tmppath = NULL;
15475
15476   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15477   g_return_val_if_fail (x != NULL, FALSE);
15478   g_return_val_if_fail (y != NULL, FALSE);
15479
15480   if (keyboard_tip)
15481     {
15482       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15483
15484       if (!tmppath)
15485         return FALSE;
15486     }
15487   else
15488     {
15489       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15490                                                          x, y);
15491
15492       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15493                                           &tmppath, NULL, NULL, NULL))
15494         return FALSE;
15495     }
15496
15497   if (model)
15498     *model = gtk_tree_view_get_model (tree_view);
15499
15500   if (iter)
15501     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15502                              iter, tmppath);
15503
15504   if (path)
15505     *path = tmppath;
15506   else
15507     gtk_tree_path_free (tmppath);
15508
15509   return TRUE;
15510 }
15511
15512 static gboolean
15513 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15514                                     gint        x,
15515                                     gint        y,
15516                                     gboolean    keyboard_tip,
15517                                     GtkTooltip *tooltip,
15518                                     gpointer    data)
15519 {
15520   GValue value = { 0, };
15521   GValue transformed = { 0, };
15522   GtkTreeIter iter;
15523   GtkTreePath *path;
15524   GtkTreeModel *model;
15525   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15526
15527   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15528                                           &x, &y,
15529                                           keyboard_tip,
15530                                           &model, &path, &iter))
15531     return FALSE;
15532
15533   gtk_tree_model_get_value (model, &iter,
15534                             tree_view->priv->tooltip_column, &value);
15535
15536   g_value_init (&transformed, G_TYPE_STRING);
15537
15538   if (!g_value_transform (&value, &transformed))
15539     {
15540       g_value_unset (&value);
15541       gtk_tree_path_free (path);
15542
15543       return FALSE;
15544     }
15545
15546   g_value_unset (&value);
15547
15548   if (!g_value_get_string (&transformed))
15549     {
15550       g_value_unset (&transformed);
15551       gtk_tree_path_free (path);
15552
15553       return FALSE;
15554     }
15555
15556   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15557   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15558
15559   gtk_tree_path_free (path);
15560   g_value_unset (&transformed);
15561
15562   return TRUE;
15563 }
15564
15565 /**
15566  * gtk_tree_view_set_tooltip_column:
15567  * @tree_view: a #GtkTreeView
15568  * @column: an integer, which is a valid column number for @tree_view's model
15569  *
15570  * If you only plan to have simple (text-only) tooltips on full rows, you
15571  * can use this function to have #GtkTreeView handle these automatically
15572  * for you. @column should be set to the column in @tree_view's model
15573  * containing the tooltip texts, or -1 to disable this feature.
15574  *
15575  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15576  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15577  *
15578  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15579  * so &amp;, &lt;, etc have to be escaped in the text.
15580  *
15581  * Since: 2.12
15582  */
15583 void
15584 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15585                                   gint         column)
15586 {
15587   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15588
15589   if (column == tree_view->priv->tooltip_column)
15590     return;
15591
15592   if (column == -1)
15593     {
15594       g_signal_handlers_disconnect_by_func (tree_view,
15595                                             gtk_tree_view_set_tooltip_query_cb,
15596                                             NULL);
15597       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15598     }
15599   else
15600     {
15601       if (tree_view->priv->tooltip_column == -1)
15602         {
15603           g_signal_connect (tree_view, "query-tooltip",
15604                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15605           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15606         }
15607     }
15608
15609   tree_view->priv->tooltip_column = column;
15610   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15611 }
15612
15613 /**
15614  * gtk_tree_view_get_tooltip_column:
15615  * @tree_view: a #GtkTreeView
15616  *
15617  * Returns the column of @tree_view's model which is being used for
15618  * displaying tooltips on @tree_view's rows.
15619  *
15620  * Return value: the index of the tooltip column that is currently being
15621  * used, or -1 if this is disabled.
15622  *
15623  * Since: 2.12
15624  */
15625 gint
15626 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15627 {
15628   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15629
15630   return tree_view->priv->tooltip_column;
15631 }
15632
15633 #define __GTK_TREE_VIEW_C__
15634 #include "gtkaliasdef.c"