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 static void     update_prelight                              (GtkTreeView        *tree_view,
 394                                                               int                 x,
 395                                                               int                 y);
 396
 397 /* interactive search */
 398 static void     gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
 399 static void     gtk_tree_view_search_dialog_hide     (GtkWidget        *search_dialog,
 400                                                          GtkTreeView      *tree_view);
 401 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 402                                                          GtkWidget        *search_dialog,
 403                                                          gpointer          user_data);
 404 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 405                                                          GtkMenu          *menu,
 406                                                          gpointer          data);
 407 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 408                                                          GtkTreeView      *tree_view);
 409 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 410                                                          GtkTreeView      *tree_view);
 411 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 412 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 413                                                          gpointer          data);
 414 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 415                                                          GdkEventAny      *event,
 416                                                          GtkTreeView      *tree_view);
 417 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 418                                                          GdkEventButton   *event,
 419                                                          GtkTreeView      *tree_view);
 420 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 421                                                          GdkEventScroll   *event,
 422                                                          GtkTreeView      *tree_view);
 423 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 424                                                          GdkEventKey      *event,
 425                                                          GtkTreeView      *tree_view);
 426 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 427                                                          GtkTreeView      *tree_view,
 428                                                          gboolean          up);
 429 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 430                                                          gint              column,
 431                                                          const gchar      *key,
 432                                                          GtkTreeIter      *iter,
 433                                                          gpointer          search_data);
 434 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 435                                                          GtkTreeSelection *selection,
 436                                                          GtkTreeIter      *iter,
 437                                                          const gchar      *text,
 438                                                          gint             *count,
 439                                                          gint              n);
 440 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 441                                                          GtkTreeView      *tree_view);
 442 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 443                                                          GtkWidget        *child_widget,
 444                                                          gint              x,
 445                                                          gint              y,
 446                                                          gint              width,
 447                                                          gint              height);
 448 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 449                                                          GtkTreePath      *cursor_path);
 450 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 451                                               GtkTreeViewColumn *column,
 452                                               GtkTreePath       *path,
 453                                               GtkCellEditable   *cell_editable,
 454                                               GdkRectangle      *cell_area,
 455                                               GdkEvent          *event,
 456                                               guint              flags);
 457 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 458                                                          gboolean     cancel_editing);
 459 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 460                                                              gboolean     keybinding);
 461 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 462 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 463                                                          GtkTreeViewColumn *column,
 464                                                          gint               drop_position);
 465
 466 /* GtkBuildable */
 467 static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
 468                                                GtkBuilder  *builder,
 469                                                GObject     *child,
 470                                                const gchar *type);
 471 static void gtk_tree_view_buildable_init      (GtkBuildableIface *iface);
 472
 473
 474 static gboolean scroll_row_timeout                   (gpointer     data);
 475 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 476 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 477
 478 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 479
 480 \f
 481
 482 /* GType Methods
 483  */
 484
 485 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 486                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 487                                                 gtk_tree_view_buildable_init))
 488
 489 static void
 490 gtk_tree_view_class_init (GtkTreeViewClass *class)
 491 {
 492   GObjectClass *o_class;
 493   GtkObjectClass *object_class;
 494   GtkWidgetClass *widget_class;
 495   GtkContainerClass *container_class;
 496   GtkBindingSet *binding_set;
 497
 498   binding_set = gtk_binding_set_by_class (class);
 499
 500   o_class = (GObjectClass *) class;
 501   object_class = (GtkObjectClass *) class;
 502   widget_class = (GtkWidgetClass *) class;
 503   container_class = (GtkContainerClass *) class;
 504
 505   /* GObject signals */
 506   o_class->set_property = gtk_tree_view_set_property;
 507   o_class->get_property = gtk_tree_view_get_property;
 508   o_class->finalize = gtk_tree_view_finalize;
 509
 510   /* GtkObject signals */
 511   object_class->destroy = gtk_tree_view_destroy;
 512
 513   /* GtkWidget signals */
 514   widget_class->map = gtk_tree_view_map;
 515   widget_class->realize = gtk_tree_view_realize;
 516   widget_class->unrealize = gtk_tree_view_unrealize;
 517   widget_class->size_request = gtk_tree_view_size_request;
 518   widget_class->size_allocate = gtk_tree_view_size_allocate;
 519   widget_class->button_press_event = gtk_tree_view_button_press;
 520   widget_class->button_release_event = gtk_tree_view_button_release;
 521   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 522   /*widget_class->configure_event = gtk_tree_view_configure;*/
 523   widget_class->motion_notify_event = gtk_tree_view_motion;
 524   widget_class->expose_event = gtk_tree_view_expose;
 525   widget_class->key_press_event = gtk_tree_view_key_press;
 526   widget_class->key_release_event = gtk_tree_view_key_release;
 527   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 528   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 529   widget_class->focus_out_event = gtk_tree_view_focus_out;
 530   widget_class->drag_begin = gtk_tree_view_drag_begin;
 531   widget_class->drag_end = gtk_tree_view_drag_end;
 532   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 533   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 534   widget_class->drag_leave = gtk_tree_view_drag_leave;
 535   widget_class->drag_motion = gtk_tree_view_drag_motion;
 536   widget_class->drag_drop = gtk_tree_view_drag_drop;
 537   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 538   widget_class->focus = gtk_tree_view_focus;
 539   widget_class->grab_focus = gtk_tree_view_grab_focus;
 540   widget_class->style_set = gtk_tree_view_style_set;
 541   widget_class->grab_notify = gtk_tree_view_grab_notify;
 542   widget_class->state_changed = gtk_tree_view_state_changed;
 543
 544   /* GtkContainer signals */
 545   container_class->remove = gtk_tree_view_remove;
 546   container_class->forall = gtk_tree_view_forall;
 547   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 548
 549   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 550   class->move_cursor = gtk_tree_view_real_move_cursor;
 551   class->select_all = gtk_tree_view_real_select_all;
 552   class->unselect_all = gtk_tree_view_real_unselect_all;
 553   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 554   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 555   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 556   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 557   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 558
 559   /* Properties */
 560
 561   g_object_class_install_property (o_class,
 562                                    PROP_MODEL,
 563                                    g_param_spec_object ("model",
 564                                                         P_("TreeView Model"),
 565                                                         P_("The model for the tree view"),
 566                                                         GTK_TYPE_TREE_MODEL,
 567                                                         GTK_PARAM_READWRITE));
 568
 569   g_object_class_install_property (o_class,
 570                                    PROP_HADJUSTMENT,
 571                                    g_param_spec_object ("hadjustment",
 572                                                         P_("Horizontal Adjustment"),
 573                                                         P_("Horizontal Adjustment for the widget"),
 574                                                         GTK_TYPE_ADJUSTMENT,
 575                                                         GTK_PARAM_READWRITE));
 576
 577   g_object_class_install_property (o_class,
 578                                    PROP_VADJUSTMENT,
 579                                    g_param_spec_object ("vadjustment",
 580                                                         P_("Vertical Adjustment"),
 581                                                         P_("Vertical Adjustment for the widget"),
 582                                                         GTK_TYPE_ADJUSTMENT,
 583                                                         GTK_PARAM_READWRITE));
 584
 585   g_object_class_install_property (o_class,
 586                                    PROP_HEADERS_VISIBLE,
 587                                    g_param_spec_boolean ("headers-visible",
 588                                                          P_("Headers Visible"),
 589                                                          P_("Show the column header buttons"),
 590                                                          TRUE,
 591                                                          GTK_PARAM_READWRITE));
 592
 593   g_object_class_install_property (o_class,
 594                                    PROP_HEADERS_CLICKABLE,
 595                                    g_param_spec_boolean ("headers-clickable",
 596                                                          P_("Headers Clickable"),
 597                                                          P_("Column headers respond to click events"),
 598                                                          TRUE,
 599                                                          GTK_PARAM_READWRITE));
 600
 601   g_object_class_install_property (o_class,
 602                                    PROP_EXPANDER_COLUMN,
 603                                    g_param_spec_object ("expander-column",
 604                                                         P_("Expander Column"),
 605                                                         P_("Set the column for the expander column"),
 606                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 607                                                         GTK_PARAM_READWRITE));
 608
 609   g_object_class_install_property (o_class,
 610                                    PROP_REORDERABLE,
 611                                    g_param_spec_boolean ("reorderable",
 612                                                          P_("Reorderable"),
 613                                                          P_("View is reorderable"),
 614                                                          FALSE,
 615                                                          GTK_PARAM_READWRITE));
 616
 617   g_object_class_install_property (o_class,
 618                                    PROP_RULES_HINT,
 619                                    g_param_spec_boolean ("rules-hint",
 620                                                          P_("Rules Hint"),
 621                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 622                                                          FALSE,
 623                                                          GTK_PARAM_READWRITE));
 624
 625     g_object_class_install_property (o_class,
 626                                      PROP_ENABLE_SEARCH,
 627                                      g_param_spec_boolean ("enable-search",
 628                                                            P_("Enable Search"),
 629                                                            P_("View allows user to search through columns interactively"),
 630                                                            TRUE,
 631                                                            GTK_PARAM_READWRITE));
 632
 633     g_object_class_install_property (o_class,
 634                                      PROP_SEARCH_COLUMN,
 635                                      g_param_spec_int ("search-column",
 636                                                        P_("Search Column"),
 637                                                        P_("Model column to search through during interactive search"),
 638                                                        -1,
 639                                                        G_MAXINT,
 640                                                        -1,
 641                                                        GTK_PARAM_READWRITE));
 642
 643     /**
 644      * GtkTreeView:fixed-height-mode:
 645      *
 646      * Setting the ::fixed-height-mode property to %TRUE speeds up
 647      * #GtkTreeView by assuming that all rows have the same height.
 648      * Only enable this option if all rows are the same height.
 649      * Please see gtk_tree_view_set_fixed_height_mode() for more
 650      * information on this option.
 651      *
 652      * Since: 2.4
 653      **/
 654     g_object_class_install_property (o_class,
 655                                      PROP_FIXED_HEIGHT_MODE,
 656                                      g_param_spec_boolean ("fixed-height-mode",
 657                                                            P_("Fixed Height Mode"),
 658                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 659                                                            FALSE,
 660                                                            GTK_PARAM_READWRITE));
 661
 662     /**
 663      * GtkTreeView:hover-selection:
 664      *
 665      * Enables of disables the hover selection mode of @tree_view.
 666      * Hover selection makes the selected row follow the pointer.
 667      * Currently, this works only for the selection modes
 668      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 669      *
 670      * This mode is primarily intended for treeviews in popups, e.g.
 671      * in #GtkComboBox or #GtkEntryCompletion.
 672      *
 673      * Since: 2.6
 674      */
 675     g_object_class_install_property (o_class,
 676                                      PROP_HOVER_SELECTION,
 677                                      g_param_spec_boolean ("hover-selection",
 678                                                            P_("Hover Selection"),
 679                                                            P_("Whether the selection should follow the pointer"),
 680                                                            FALSE,
 681                                                            GTK_PARAM_READWRITE));
 682
 683     /**
 684      * GtkTreeView:hover-expand:
 685      *
 686      * Enables of disables the hover expansion mode of @tree_view.
 687      * Hover expansion makes rows expand or collapse if the pointer moves
 688      * over them.
 689      *
 690      * This mode is primarily intended for treeviews in popups, e.g.
 691      * in #GtkComboBox or #GtkEntryCompletion.
 692      *
 693      * Since: 2.6
 694      */
 695     g_object_class_install_property (o_class,
 696                                      PROP_HOVER_EXPAND,
 697                                      g_param_spec_boolean ("hover-expand",
 698                                                            P_("Hover Expand"),
 699                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 700                                                            FALSE,
 701                                                            GTK_PARAM_READWRITE));
 702
 703     /**
 704      * GtkTreeView:show-expanders:
 705      *
 706      * %TRUE if the view has expanders.
 707      *
 708      * Since: 2.12
 709      */
 710     g_object_class_install_property (o_class,
 711                                      PROP_SHOW_EXPANDERS,
 712                                      g_param_spec_boolean ("show-expanders",
 713                                                            P_("Show Expanders"),
 714                                                            P_("View has expanders"),
 715                                                            TRUE,
 716                                                            GTK_PARAM_READWRITE));
 717
 718     /**
 719      * GtkTreeView:level-indentation:
 720      *
 721      * Extra indentation for each level.
 722      *
 723      * Since: 2.12
 724      */
 725     g_object_class_install_property (o_class,
 726                                      PROP_LEVEL_INDENTATION,
 727                                      g_param_spec_int ("level-indentation",
 728                                                        P_("Level Indentation"),
 729                                                        P_("Extra indentation for each level"),
 730                                                        0,
 731                                                        G_MAXINT,
 732                                                        0,
 733                                                        GTK_PARAM_READWRITE));
 734
 735     g_object_class_install_property (o_class,
 736                                      PROP_RUBBER_BANDING,
 737                                      g_param_spec_boolean ("rubber-banding",
 738                                                            P_("Rubber Banding"),
 739                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 740                                                            FALSE,
 741                                                            GTK_PARAM_READWRITE));
 742
 743     g_object_class_install_property (o_class,
 744                                      PROP_ENABLE_GRID_LINES,
 745                                      g_param_spec_enum ("enable-grid-lines",
 746                                                         P_("Enable Grid Lines"),
 747                                                         P_("Whether grid lines should be drawn in the tree view"),
 748                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 749                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 750                                                         GTK_PARAM_READWRITE));
 751
 752     g_object_class_install_property (o_class,
 753                                      PROP_ENABLE_TREE_LINES,
 754                                      g_param_spec_boolean ("enable-tree-lines",
 755                                                            P_("Enable Tree Lines"),
 756                                                            P_("Whether tree lines should be drawn in the tree view"),
 757                                                            FALSE,
 758                                                            GTK_PARAM_READWRITE));
 759
 760     g_object_class_install_property (o_class,
 761                                      PROP_TOOLTIP_COLUMN,
 762                                      g_param_spec_int ("tooltip-column",
 763                                                        P_("Tooltip Column"),
 764                                                        P_("The column in the model containing the tooltip texts for the rows"),
 765                                                        -1,
 766                                                        G_MAXINT,
 767                                                        -1,
 768                                                        GTK_PARAM_READWRITE));
 769
 770   /* Style properties */
 771 #define _TREE_VIEW_EXPANDER_SIZE 12
 772 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 773 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 774
 775   gtk_widget_class_install_style_property (widget_class,
 776                                            g_param_spec_int ("expander-size",
 777                                                              P_("Expander Size"),
 778                                                              P_("Size of the expander arrow"),
 779                                                              0,
 780                                                              G_MAXINT,
 781                                                              _TREE_VIEW_EXPANDER_SIZE,
 782                                                              GTK_PARAM_READABLE));
 783
 784   gtk_widget_class_install_style_property (widget_class,
 785                                            g_param_spec_int ("vertical-separator",
 786                                                              P_("Vertical Separator Width"),
 787                                                              P_("Vertical space between cells.  Must be an even number"),
 788                                                              0,
 789                                                              G_MAXINT,
 790                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 791                                                              GTK_PARAM_READABLE));
 792
 793   gtk_widget_class_install_style_property (widget_class,
 794                                            g_param_spec_int ("horizontal-separator",
 795                                                              P_("Horizontal Separator Width"),
 796                                                              P_("Horizontal space between cells.  Must be an even number"),
 797                                                              0,
 798                                                              G_MAXINT,
 799                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 800                                                              GTK_PARAM_READABLE));
 801
 802   gtk_widget_class_install_style_property (widget_class,
 803                                            g_param_spec_boolean ("allow-rules",
 804                                                                  P_("Allow Rules"),
 805                                                                  P_("Allow drawing of alternating color rows"),
 806                                                                  TRUE,
 807                                                                  GTK_PARAM_READABLE));
 808
 809   gtk_widget_class_install_style_property (widget_class,
 810                                            g_param_spec_boolean ("indent-expanders",
 811                                                                  P_("Indent Expanders"),
 812                                                                  P_("Make the expanders indented"),
 813                                                                  TRUE,
 814                                                                  GTK_PARAM_READABLE));
 815
 816   gtk_widget_class_install_style_property (widget_class,
 817                                            g_param_spec_boxed ("even-row-color",
 818                                                                P_("Even Row Color"),
 819                                                                P_("Color to use for even rows"),
 820                                                                GDK_TYPE_COLOR,
 821                                                                GTK_PARAM_READABLE));
 822
 823   gtk_widget_class_install_style_property (widget_class,
 824                                            g_param_spec_boxed ("odd-row-color",
 825                                                                P_("Odd Row Color"),
 826                                                                P_("Color to use for odd rows"),
 827                                                                GDK_TYPE_COLOR,
 828                                                                GTK_PARAM_READABLE));
 829
 830   gtk_widget_class_install_style_property (widget_class,
 831                                            g_param_spec_boolean ("row-ending-details",
 832                                                                  P_("Row Ending details"),
 833                                                                  P_("Enable extended row background theming"),
 834                                                                  FALSE,
 835                                                                  GTK_PARAM_READABLE));
 836
 837   gtk_widget_class_install_style_property (widget_class,
 838                                            g_param_spec_int ("grid-line-width",
 839                                                              P_("Grid line width"),
 840                                                              P_("Width, in pixels, of the tree view grid lines"),
 841                                                              0, G_MAXINT, 1,
 842                                                              GTK_PARAM_READABLE));
 843
 844   gtk_widget_class_install_style_property (widget_class,
 845                                            g_param_spec_int ("tree-line-width",
 846                                                              P_("Tree line width"),
 847                                                              P_("Width, in pixels, of the tree view lines"),
 848                                                              0, G_MAXINT, 1,
 849                                                              GTK_PARAM_READABLE));
 850
 851   gtk_widget_class_install_style_property (widget_class,
 852                                            g_param_spec_string ("grid-line-pattern",
 853                                                                 P_("Grid line pattern"),
 854                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 855                                                                 "\1\1",
 856                                                                 GTK_PARAM_READABLE));
 857
 858   gtk_widget_class_install_style_property (widget_class,
 859                                            g_param_spec_string ("tree-line-pattern",
 860                                                                 P_("Tree line pattern"),
 861                                                                 P_("Dash pattern used to draw the tree view lines"),
 862                                                                 "\1\1",
 863                                                                 GTK_PARAM_READABLE));
 864
 865   /* Signals */
 866   /**
 867    * GtkTreeView::set-scroll-adjustments
 868    * @horizontal: the horizontal #GtkAdjustment
 869    * @vertical: the vertical #GtkAdjustment
 870    *
 871    * Set the scroll adjustments for the tree view. Usually scrolled containers
 872    * like #GtkScrolledWindow will emit this signal to connect two instances
 873    * of #GtkScrollbar to the scroll directions of the #GtkTreeView.
 874    */
 875   widget_class->set_scroll_adjustments_signal =
 876     g_signal_new (I_("set-scroll-adjustments"),
 877                   G_TYPE_FROM_CLASS (o_class),
 878                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 879                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 880                   NULL, NULL,
 881                   _gtk_marshal_VOID__OBJECT_OBJECT,
 882                   G_TYPE_NONE, 2,
 883                   GTK_TYPE_ADJUSTMENT,
 884                   GTK_TYPE_ADJUSTMENT);
 885
 886   /**
 887    * GtkTreeView::row-activated:
 888    * @tree_view: the object on which the signal is emitted
 889    * @path: the #GtkTreePath for the activated row
 890    * @column: the #GtkTreeViewColumn in which the activation occurred
 891    *
 892    * The "row-activated" signal is emitted when the method
 893    * gtk_tree_view_row_activated() is called or the user double clicks
 894    * a treeview row. It is also emitted when a non-editable row is
 895    * selected and one of the keys: Space, Shift+Space, Return or
 896    * Enter is pressed.
 897    *
 898    * For selection handling refer to the <link linkend="TreeWidget">tree
 899    * widget conceptual overview</link> as well as #GtkTreeSelection.
 900    */
 901   tree_view_signals[ROW_ACTIVATED] =
 902     g_signal_new (I_("row-activated"),
 903                   G_TYPE_FROM_CLASS (o_class),
 904                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 905                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 906                   NULL, NULL,
 907                   _gtk_marshal_VOID__BOXED_OBJECT,
 908                   G_TYPE_NONE, 2,
 909                   GTK_TYPE_TREE_PATH,
 910                   GTK_TYPE_TREE_VIEW_COLUMN);
 911
 912   /**
 913    * GtkTreeView::test-expand-row:
 914    * @tree_view: the object on which the signal is emitted
 915    * @iter: the tree iter of the row to expand
 916    * @path: a tree path that points to the row
 917    *
 918    * The given row is about to be expanded (show its children nodes). Use this
 919    * signal if you need to control the expandability of individual rows.
 920    *
 921    * Returns: %FALSE to allow expansion, %TRUE to reject
 922    */
 923   tree_view_signals[TEST_EXPAND_ROW] =
 924     g_signal_new (I_("test-expand-row"),
 925                   G_TYPE_FROM_CLASS (o_class),
 926                   G_SIGNAL_RUN_LAST,
 927                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 928                   _gtk_boolean_handled_accumulator, NULL,
 929                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 930                   G_TYPE_BOOLEAN, 2,
 931                   GTK_TYPE_TREE_ITER,
 932                   GTK_TYPE_TREE_PATH);
 933
 934   /**
 935    * GtkTreeView::test-collapse-row:
 936    * @tree_view: the object on which the signal is emitted
 937    * @iter: the tree iter of the row to collapse
 938    * @path: a tree path that points to the row
 939    *
 940    * The given row is about to be collapsed (hide its children nodes). Use this
 941    * signal if you need to control the collapsibility of individual rows.
 942    *
 943    * Returns: %FALSE to allow collapsing, %TRUE to reject
 944    */
 945   tree_view_signals[TEST_COLLAPSE_ROW] =
 946     g_signal_new (I_("test-collapse-row"),
 947                   G_TYPE_FROM_CLASS (o_class),
 948                   G_SIGNAL_RUN_LAST,
 949                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 950                   _gtk_boolean_handled_accumulator, NULL,
 951                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 952                   G_TYPE_BOOLEAN, 2,
 953                   GTK_TYPE_TREE_ITER,
 954                   GTK_TYPE_TREE_PATH);
 955
 956   /**
 957    * GtkTreeView::row-expanded:
 958    * @tree_view: the object on which the signal is emitted
 959    * @iter: the tree iter of the expanded row
 960    * @path: a tree path that points to the row
 961    *
 962    * The given row has been expanded (child nodes are shown).
 963    */
 964   tree_view_signals[ROW_EXPANDED] =
 965     g_signal_new (I_("row-expanded"),
 966                   G_TYPE_FROM_CLASS (o_class),
 967                   G_SIGNAL_RUN_LAST,
 968                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 969                   NULL, NULL,
 970                   _gtk_marshal_VOID__BOXED_BOXED,
 971                   G_TYPE_NONE, 2,
 972                   GTK_TYPE_TREE_ITER,
 973                   GTK_TYPE_TREE_PATH);
 974
 975   /**
 976    * GtkTreeView::row-collapsed:
 977    * @tree_view: the object on which the signal is emitted
 978    * @iter: the tree iter of the collapsed row
 979    * @path: a tree path that points to the row
 980    *
 981    * The given row has been collapsed (child nodes are hidden).
 982    */
 983   tree_view_signals[ROW_COLLAPSED] =
 984     g_signal_new (I_("row-collapsed"),
 985                   G_TYPE_FROM_CLASS (o_class),
 986                   G_SIGNAL_RUN_LAST,
 987                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 988                   NULL, NULL,
 989                   _gtk_marshal_VOID__BOXED_BOXED,
 990                   G_TYPE_NONE, 2,
 991                   GTK_TYPE_TREE_ITER,
 992                   GTK_TYPE_TREE_PATH);
 993
 994   /**
 995    * GtkTreeView::columns-changed:
 996    * @tree_view: the object on which the signal is emitted
 997    *
 998    * The number of columns of the treeview has changed.
 999    */
1000   tree_view_signals[COLUMNS_CHANGED] =
1001     g_signal_new (I_("columns-changed"),
1002                   G_TYPE_FROM_CLASS (o_class),
1003                   G_SIGNAL_RUN_LAST,
1004                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
1005                   NULL, NULL,
1006                   _gtk_marshal_VOID__VOID,
1007                   G_TYPE_NONE, 0);
1008
1009   /**
1010    * GtkTreeView::cursor-changed:
1011    * @tree_view: the object on which the signal is emitted
1012    *
1013    * The position of the cursor (focused cell) has changed.
1014    */
1015   tree_view_signals[CURSOR_CHANGED] =
1016     g_signal_new (I_("cursor-changed"),
1017                   G_TYPE_FROM_CLASS (o_class),
1018                   G_SIGNAL_RUN_LAST,
1019                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1020                   NULL, NULL,
1021                   _gtk_marshal_VOID__VOID,
1022                   G_TYPE_NONE, 0);
1023
1024   tree_view_signals[MOVE_CURSOR] =
1025     g_signal_new (I_("move-cursor"),
1026                   G_TYPE_FROM_CLASS (object_class),
1027                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1028                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1029                   NULL, NULL,
1030                   _gtk_marshal_BOOLEAN__ENUM_INT,
1031                   G_TYPE_BOOLEAN, 2,
1032                   GTK_TYPE_MOVEMENT_STEP,
1033                   G_TYPE_INT);
1034
1035   tree_view_signals[SELECT_ALL] =
1036     g_signal_new (I_("select-all"),
1037                   G_TYPE_FROM_CLASS (object_class),
1038                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1039                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1040                   NULL, NULL,
1041                   _gtk_marshal_BOOLEAN__VOID,
1042                   G_TYPE_BOOLEAN, 0);
1043
1044   tree_view_signals[UNSELECT_ALL] =
1045     g_signal_new (I_("unselect-all"),
1046                   G_TYPE_FROM_CLASS (object_class),
1047                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1048                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1049                   NULL, NULL,
1050                   _gtk_marshal_BOOLEAN__VOID,
1051                   G_TYPE_BOOLEAN, 0);
1052
1053   tree_view_signals[SELECT_CURSOR_ROW] =
1054     g_signal_new (I_("select-cursor-row"),
1055                   G_TYPE_FROM_CLASS (object_class),
1056                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1057                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1058                   NULL, NULL,
1059                   _gtk_marshal_BOOLEAN__BOOLEAN,
1060                   G_TYPE_BOOLEAN, 1,
1061                   G_TYPE_BOOLEAN);
1062
1063   tree_view_signals[TOGGLE_CURSOR_ROW] =
1064     g_signal_new (I_("toggle-cursor-row"),
1065                   G_TYPE_FROM_CLASS (object_class),
1066                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1067                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1068                   NULL, NULL,
1069                   _gtk_marshal_BOOLEAN__VOID,
1070                   G_TYPE_BOOLEAN, 0);
1071
1072   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1073     g_signal_new (I_("expand-collapse-cursor-row"),
1074                   G_TYPE_FROM_CLASS (object_class),
1075                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1076                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1077                   NULL, NULL,
1078                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1079                   G_TYPE_BOOLEAN, 3,
1080                   G_TYPE_BOOLEAN,
1081                   G_TYPE_BOOLEAN,
1082                   G_TYPE_BOOLEAN);
1083
1084   tree_view_signals[SELECT_CURSOR_PARENT] =
1085     g_signal_new (I_("select-cursor-parent"),
1086                   G_TYPE_FROM_CLASS (object_class),
1087                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1088                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1089                   NULL, NULL,
1090                   _gtk_marshal_BOOLEAN__VOID,
1091                   G_TYPE_BOOLEAN, 0);
1092
1093   tree_view_signals[START_INTERACTIVE_SEARCH] =
1094     g_signal_new (I_("start-interactive-search"),
1095                   G_TYPE_FROM_CLASS (object_class),
1096                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1097                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1098                   NULL, NULL,
1099                   _gtk_marshal_BOOLEAN__VOID,
1100                   G_TYPE_BOOLEAN, 0);
1101
1102   /* Key bindings */
1103   gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0, TRUE,
1104                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1105   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0, TRUE,
1106                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1107
1108   gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0, TRUE,
1109                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1110   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0, TRUE,
1111                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1112
1113   gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, FALSE,
1114                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1115
1116   gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, FALSE,
1117                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1118
1119   gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0, TRUE,
1120                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1121   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0, TRUE,
1122                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1123
1124   gtk_tree_view_add_move_binding (binding_set, GDK_End, 0, TRUE,
1125                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1126   gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0, TRUE,
1127                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1128
1129   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0, TRUE,
1130                                   GTK_MOVEMENT_PAGES, -1);
1131   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, TRUE,
1132                                   GTK_MOVEMENT_PAGES, -1);
1133
1134   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0, TRUE,
1135                                   GTK_MOVEMENT_PAGES, 1);
1136   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, TRUE,
1137                                   GTK_MOVEMENT_PAGES, 1);
1138
1139
1140   gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move-cursor", 2,
1141                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1142                                 G_TYPE_INT, 1);
1143
1144   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move-cursor", 2,
1145                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1146                                 G_TYPE_INT, -1);
1147
1148   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move-cursor", 2,
1149                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1150                                 G_TYPE_INT, 1);
1151
1152   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move-cursor", 2,
1153                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1154                                 G_TYPE_INT, -1);
1155
1156   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1157                                 "move-cursor", 2,
1158                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1159                                 G_TYPE_INT, 1);
1160
1161   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1162                                 "move-cursor", 2,
1163                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1164                                 G_TYPE_INT, -1);
1165
1166   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1167                                 "move-cursor", 2,
1168                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1169                                 G_TYPE_INT, 1);
1170
1171   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1172                                 "move-cursor", 2,
1173                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1174                                 G_TYPE_INT, -1);
1175
1176   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1177   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1178
1179   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select-all", 0);
1180   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select-all", 0);
1181
1182   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
1183   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
1184
1185   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1186                                 G_TYPE_BOOLEAN, TRUE);
1187   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1188                                 G_TYPE_BOOLEAN, TRUE);
1189
1190   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select-cursor-row", 1,
1191                                 G_TYPE_BOOLEAN, TRUE);
1192   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "select-cursor-row", 1,
1193                                 G_TYPE_BOOLEAN, TRUE);
1194   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select-cursor-row", 1,
1195                                 G_TYPE_BOOLEAN, TRUE);
1196   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select-cursor-row", 1,
1197                                 G_TYPE_BOOLEAN, TRUE);
1198   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select-cursor-row", 1,
1199                                 G_TYPE_BOOLEAN, TRUE);
1200
1201   /* expand and collapse rows */
1202   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand-collapse-cursor-row", 3,
1203                                 G_TYPE_BOOLEAN, TRUE,
1204                                 G_TYPE_BOOLEAN, TRUE,
1205                                 G_TYPE_BOOLEAN, FALSE);
1206
1207   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1208                                 "expand-collapse-cursor-row", 3,
1209                                 G_TYPE_BOOLEAN, TRUE,
1210                                 G_TYPE_BOOLEAN, TRUE,
1211                                 G_TYPE_BOOLEAN, TRUE);
1212   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1213                                 "expand-collapse-cursor-row", 3,
1214                                 G_TYPE_BOOLEAN, TRUE,
1215                                 G_TYPE_BOOLEAN, TRUE,
1216                                 G_TYPE_BOOLEAN, TRUE);
1217
1218   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1219                                 "expand-collapse-cursor-row", 3,
1220                                 G_TYPE_BOOLEAN, TRUE,
1221                                 G_TYPE_BOOLEAN, FALSE,
1222                                 G_TYPE_BOOLEAN, FALSE);
1223   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1224                                 "expand-collapse-cursor-row", 3,
1225                                 G_TYPE_BOOLEAN, TRUE,
1226                                 G_TYPE_BOOLEAN, FALSE,
1227                                 G_TYPE_BOOLEAN, FALSE);
1228
1229   /* Not doable on US keyboards */
1230   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1231                                 G_TYPE_BOOLEAN, TRUE,
1232                                 G_TYPE_BOOLEAN, TRUE,
1233                                 G_TYPE_BOOLEAN, TRUE);
1234   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand-collapse-cursor-row", 3,
1235                                 G_TYPE_BOOLEAN, TRUE,
1236                                 G_TYPE_BOOLEAN, TRUE,
1237                                 G_TYPE_BOOLEAN, FALSE);
1238   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1239                                 G_TYPE_BOOLEAN, TRUE,
1240                                 G_TYPE_BOOLEAN, TRUE,
1241                                 G_TYPE_BOOLEAN, TRUE);
1242   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1243                                 G_TYPE_BOOLEAN, TRUE,
1244                                 G_TYPE_BOOLEAN, TRUE,
1245                                 G_TYPE_BOOLEAN, TRUE);
1246   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_SHIFT_MASK,
1247                                 "expand-collapse-cursor-row", 3,
1248                                 G_TYPE_BOOLEAN, FALSE,
1249                                 G_TYPE_BOOLEAN, TRUE,
1250                                 G_TYPE_BOOLEAN, TRUE);
1251   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_SHIFT_MASK,
1252                                 "expand-collapse-cursor-row", 3,
1253                                 G_TYPE_BOOLEAN, FALSE,
1254                                 G_TYPE_BOOLEAN, TRUE,
1255                                 G_TYPE_BOOLEAN, TRUE);
1256   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1257                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1258                                 "expand-collapse-cursor-row", 3,
1259                                 G_TYPE_BOOLEAN, FALSE,
1260                                 G_TYPE_BOOLEAN, TRUE,
1261                                 G_TYPE_BOOLEAN, TRUE);
1262   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1263                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1264                                 "expand-collapse-cursor-row", 3,
1265                                 G_TYPE_BOOLEAN, FALSE,
1266                                 G_TYPE_BOOLEAN, TRUE,
1267                                 G_TYPE_BOOLEAN, TRUE);
1268
1269   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand-collapse-cursor-row", 3,
1270                                 G_TYPE_BOOLEAN, TRUE,
1271                                 G_TYPE_BOOLEAN, FALSE,
1272                                 G_TYPE_BOOLEAN, FALSE);
1273   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1274                                 G_TYPE_BOOLEAN, TRUE,
1275                                 G_TYPE_BOOLEAN, FALSE,
1276                                 G_TYPE_BOOLEAN, TRUE);
1277   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
1278                                 G_TYPE_BOOLEAN, TRUE,
1279                                 G_TYPE_BOOLEAN, FALSE,
1280                                 G_TYPE_BOOLEAN, FALSE);
1281   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1282                                 G_TYPE_BOOLEAN, TRUE,
1283                                 G_TYPE_BOOLEAN, FALSE,
1284                                 G_TYPE_BOOLEAN, TRUE);
1285   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
1286                                 "expand-collapse-cursor-row", 3,
1287                                 G_TYPE_BOOLEAN, FALSE,
1288                                 G_TYPE_BOOLEAN, FALSE,
1289                                 G_TYPE_BOOLEAN, TRUE);
1290   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
1291                                 "expand-collapse-cursor-row", 3,
1292                                 G_TYPE_BOOLEAN, FALSE,
1293                                 G_TYPE_BOOLEAN, FALSE,
1294                                 G_TYPE_BOOLEAN, TRUE);
1295   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1296                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1297                                 "expand-collapse-cursor-row", 3,
1298                                 G_TYPE_BOOLEAN, FALSE,
1299                                 G_TYPE_BOOLEAN, FALSE,
1300                                 G_TYPE_BOOLEAN, TRUE);
1301   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
1302                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1303                                 "expand-collapse-cursor-row", 3,
1304                                 G_TYPE_BOOLEAN, FALSE,
1305                                 G_TYPE_BOOLEAN, FALSE,
1306                                 G_TYPE_BOOLEAN, TRUE);
1307
1308   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select-cursor-parent", 0);
1309   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
1310
1311   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
1312
1313   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
1314
1315   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1316 }
1317
1318 static void
1319 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1320 {
1321   iface->add_child = gtk_tree_view_buildable_add_child;
1322 }
1323
1324 static void
1325 gtk_tree_view_init (GtkTreeView *tree_view)
1326 {
1327   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1328
1329   GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
1330
1331   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1332
1333   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1334                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1335                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1336
1337   /* We need some padding */
1338   tree_view->priv->dy = 0;
1339   tree_view->priv->cursor_offset = 0;
1340   tree_view->priv->n_columns = 0;
1341   tree_view->priv->header_height = 1;
1342   tree_view->priv->x_drag = 0;
1343   tree_view->priv->drag_pos = -1;
1344   tree_view->priv->header_has_focus = FALSE;
1345   tree_view->priv->pressed_button = -1;
1346   tree_view->priv->press_start_x = -1;
1347   tree_view->priv->press_start_y = -1;
1348   tree_view->priv->reorderable = FALSE;
1349   tree_view->priv->presize_handler_timer = 0;
1350   tree_view->priv->scroll_sync_timer = 0;
1351   tree_view->priv->fixed_height = -1;
1352   tree_view->priv->fixed_height_mode = FALSE;
1353   tree_view->priv->fixed_height_check = 0;
1354   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1355   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1356   tree_view->priv->enable_search = TRUE;
1357   tree_view->priv->search_column = -1;
1358   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1359   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1360   tree_view->priv->search_custom_entry_set = FALSE;
1361   tree_view->priv->typeselect_flush_timeout = 0;
1362   tree_view->priv->init_hadjust_value = TRUE;
1363   tree_view->priv->width = 0;
1364
1365   tree_view->priv->hover_selection = FALSE;
1366   tree_view->priv->hover_expand = FALSE;
1367
1368   tree_view->priv->level_indentation = 0;
1369
1370   tree_view->priv->rubber_banding_enable = FALSE;
1371
1372   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1373   tree_view->priv->tree_lines_enabled = FALSE;
1374
1375   tree_view->priv->tooltip_column = -1;
1376
1377   tree_view->priv->post_validation_flag = FALSE;
1378
1379   tree_view->priv->last_button_x = -1;
1380   tree_view->priv->last_button_y = -1;
1381
1382   tree_view->priv->event_last_x = -10000;
1383   tree_view->priv->event_last_y = -10000;
1384 }
1385
1386 \f
1387
1388 /* GObject Methods
1389  */
1390
1391 static void
1392 gtk_tree_view_set_property (GObject         *object,
1393                             guint            prop_id,
1394                             const GValue    *value,
1395                             GParamSpec      *pspec)
1396 {
1397   GtkTreeView *tree_view;
1398
1399   tree_view = GTK_TREE_VIEW (object);
1400
1401   switch (prop_id)
1402     {
1403     case PROP_MODEL:
1404       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1405       break;
1406     case PROP_HADJUSTMENT:
1407       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1408       break;
1409     case PROP_VADJUSTMENT:
1410       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1411       break;
1412     case PROP_HEADERS_VISIBLE:
1413       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1414       break;
1415     case PROP_HEADERS_CLICKABLE:
1416       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1417       break;
1418     case PROP_EXPANDER_COLUMN:
1419       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1420       break;
1421     case PROP_REORDERABLE:
1422       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1423       break;
1424     case PROP_RULES_HINT:
1425       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1426       break;
1427     case PROP_ENABLE_SEARCH:
1428       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1429       break;
1430     case PROP_SEARCH_COLUMN:
1431       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1432       break;
1433     case PROP_FIXED_HEIGHT_MODE:
1434       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1435       break;
1436     case PROP_HOVER_SELECTION:
1437       tree_view->priv->hover_selection = g_value_get_boolean (value);
1438       break;
1439     case PROP_HOVER_EXPAND:
1440       tree_view->priv->hover_expand = g_value_get_boolean (value);
1441       break;
1442     case PROP_SHOW_EXPANDERS:
1443       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1444       break;
1445     case PROP_LEVEL_INDENTATION:
1446       tree_view->priv->level_indentation = g_value_get_int (value);
1447       break;
1448     case PROP_RUBBER_BANDING:
1449       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1450       break;
1451     case PROP_ENABLE_GRID_LINES:
1452       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1453       break;
1454     case PROP_ENABLE_TREE_LINES:
1455       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1456       break;
1457     case PROP_TOOLTIP_COLUMN:
1458       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1459       break;
1460     default:
1461       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1462       break;
1463     }
1464 }
1465
1466 static void
1467 gtk_tree_view_get_property (GObject    *object,
1468                             guint       prop_id,
1469                             GValue     *value,
1470                             GParamSpec *pspec)
1471 {
1472   GtkTreeView *tree_view;
1473
1474   tree_view = GTK_TREE_VIEW (object);
1475
1476   switch (prop_id)
1477     {
1478     case PROP_MODEL:
1479       g_value_set_object (value, tree_view->priv->model);
1480       break;
1481     case PROP_HADJUSTMENT:
1482       g_value_set_object (value, tree_view->priv->hadjustment);
1483       break;
1484     case PROP_VADJUSTMENT:
1485       g_value_set_object (value, tree_view->priv->vadjustment);
1486       break;
1487     case PROP_HEADERS_VISIBLE:
1488       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1489       break;
1490     case PROP_HEADERS_CLICKABLE:
1491       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1492       break;
1493     case PROP_EXPANDER_COLUMN:
1494       g_value_set_object (value, tree_view->priv->expander_column);
1495       break;
1496     case PROP_REORDERABLE:
1497       g_value_set_boolean (value, tree_view->priv->reorderable);
1498       break;
1499     case PROP_RULES_HINT:
1500       g_value_set_boolean (value, tree_view->priv->has_rules);
1501       break;
1502     case PROP_ENABLE_SEARCH:
1503       g_value_set_boolean (value, tree_view->priv->enable_search);
1504       break;
1505     case PROP_SEARCH_COLUMN:
1506       g_value_set_int (value, tree_view->priv->search_column);
1507       break;
1508     case PROP_FIXED_HEIGHT_MODE:
1509       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1510       break;
1511     case PROP_HOVER_SELECTION:
1512       g_value_set_boolean (value, tree_view->priv->hover_selection);
1513       break;
1514     case PROP_HOVER_EXPAND:
1515       g_value_set_boolean (value, tree_view->priv->hover_expand);
1516       break;
1517     case PROP_SHOW_EXPANDERS:
1518       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1519       break;
1520     case PROP_LEVEL_INDENTATION:
1521       g_value_set_int (value, tree_view->priv->level_indentation);
1522       break;
1523     case PROP_RUBBER_BANDING:
1524       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1525       break;
1526     case PROP_ENABLE_GRID_LINES:
1527       g_value_set_enum (value, tree_view->priv->grid_lines);
1528       break;
1529     case PROP_ENABLE_TREE_LINES:
1530       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1531       break;
1532     case PROP_TOOLTIP_COLUMN:
1533       g_value_set_int (value, tree_view->priv->tooltip_column);
1534       break;
1535     default:
1536       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1537       break;
1538     }
1539 }
1540
1541 static void
1542 gtk_tree_view_finalize (GObject *object)
1543 {
1544   G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
1545 }
1546
1547 \f
1548
1549 static void
1550 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1551                                    GtkBuilder  *builder,
1552                                    GObject     *child,
1553                                    const gchar *type)
1554 {
1555   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1556 }
1557
1558 /* GtkObject Methods
1559  */
1560
1561 static void
1562 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1563 {
1564   _gtk_rbtree_free (tree_view->priv->tree);
1565
1566   tree_view->priv->tree = NULL;
1567   tree_view->priv->button_pressed_node = NULL;
1568   tree_view->priv->button_pressed_tree = NULL;
1569   tree_view->priv->prelight_tree = NULL;
1570   tree_view->priv->prelight_node = NULL;
1571   tree_view->priv->expanded_collapsed_node = NULL;
1572   tree_view->priv->expanded_collapsed_tree = NULL;
1573 }
1574
1575 static void
1576 gtk_tree_view_destroy (GtkObject *object)
1577 {
1578   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1579   GList *list;
1580
1581   gtk_tree_view_stop_editing (tree_view, TRUE);
1582
1583   if (tree_view->priv->columns != NULL)
1584     {
1585       list = tree_view->priv->columns;
1586       while (list)
1587         {
1588           GtkTreeViewColumn *column;
1589           column = GTK_TREE_VIEW_COLUMN (list->data);
1590           list = list->next;
1591           gtk_tree_view_remove_column (tree_view, column);
1592         }
1593       tree_view->priv->columns = NULL;
1594     }
1595
1596   if (tree_view->priv->tree != NULL)
1597     {
1598       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1599
1600       gtk_tree_view_free_rbtree (tree_view);
1601     }
1602
1603   if (tree_view->priv->selection != NULL)
1604     {
1605       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1606       g_object_unref (tree_view->priv->selection);
1607       tree_view->priv->selection = NULL;
1608     }
1609
1610   if (tree_view->priv->scroll_to_path != NULL)
1611     {
1612       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1613       tree_view->priv->scroll_to_path = NULL;
1614     }
1615
1616   if (tree_view->priv->drag_dest_row != NULL)
1617     {
1618       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1619       tree_view->priv->drag_dest_row = NULL;
1620     }
1621
1622   if (tree_view->priv->top_row != NULL)
1623     {
1624       gtk_tree_row_reference_free (tree_view->priv->top_row);
1625       tree_view->priv->top_row = NULL;
1626     }
1627
1628   if (tree_view->priv->column_drop_func_data &&
1629       tree_view->priv->column_drop_func_data_destroy)
1630     {
1631       tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
1632       tree_view->priv->column_drop_func_data = NULL;
1633     }
1634
1635   if (tree_view->priv->destroy_count_destroy &&
1636       tree_view->priv->destroy_count_data)
1637     {
1638       tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
1639       tree_view->priv->destroy_count_data = NULL;
1640     }
1641
1642   gtk_tree_row_reference_free (tree_view->priv->cursor);
1643   tree_view->priv->cursor = NULL;
1644
1645   gtk_tree_row_reference_free (tree_view->priv->anchor);
1646   tree_view->priv->anchor = NULL;
1647
1648   /* destroy interactive search dialog */
1649   if (tree_view->priv->search_window)
1650     {
1651       gtk_widget_destroy (tree_view->priv->search_window);
1652       tree_view->priv->search_window = NULL;
1653       tree_view->priv->search_entry = NULL;
1654       if (tree_view->priv->typeselect_flush_timeout)
1655         {
1656           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1657           tree_view->priv->typeselect_flush_timeout = 0;
1658         }
1659     }
1660
1661   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1662     {
1663       tree_view->priv->search_destroy (tree_view->priv->search_user_data);
1664       tree_view->priv->search_user_data = NULL;
1665     }
1666
1667   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1668     {
1669       tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
1670       tree_view->priv->search_position_user_data = NULL;
1671     }
1672
1673   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1674     {
1675       tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
1676       tree_view->priv->row_separator_data = NULL;
1677     }
1678
1679   gtk_tree_view_set_model (tree_view, NULL);
1680
1681   if (tree_view->priv->hadjustment)
1682     {
1683       g_object_unref (tree_view->priv->hadjustment);
1684       tree_view->priv->hadjustment = NULL;
1685     }
1686   if (tree_view->priv->vadjustment)
1687     {
1688       g_object_unref (tree_view->priv->vadjustment);
1689       tree_view->priv->vadjustment = NULL;
1690     }
1691
1692   GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy (object);
1693 }
1694
1695 \f
1696
1697 /* GtkWidget Methods
1698  */
1699
1700 /* GtkWidget::map helper */
1701 static void
1702 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1703 {
1704   GList *list;
1705
1706   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1707
1708   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1709     {
1710       GtkTreeViewColumn *column;
1711
1712       for (list = tree_view->priv->columns; list; list = list->next)
1713         {
1714           column = list->data;
1715           if (GTK_WIDGET_VISIBLE (column->button) &&
1716               !GTK_WIDGET_MAPPED (column->button))
1717             gtk_widget_map (column->button);
1718         }
1719       for (list = tree_view->priv->columns; list; list = list->next)
1720         {
1721           column = list->data;
1722           if (column->visible == FALSE)
1723             continue;
1724           if (column->resizable)
1725             {
1726               gdk_window_raise (column->window);
1727               gdk_window_show (column->window);
1728             }
1729           else
1730             gdk_window_hide (column->window);
1731         }
1732       gdk_window_show (tree_view->priv->header_window);
1733     }
1734 }
1735
1736 static void
1737 gtk_tree_view_map (GtkWidget *widget)
1738 {
1739   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1740   GList *tmp_list;
1741
1742   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1743
1744   tmp_list = tree_view->priv->children;
1745   while (tmp_list)
1746     {
1747       GtkTreeViewChild *child = tmp_list->data;
1748       tmp_list = tmp_list->next;
1749
1750       if (GTK_WIDGET_VISIBLE (child->widget))
1751         {
1752           if (!GTK_WIDGET_MAPPED (child->widget))
1753             gtk_widget_map (child->widget);
1754         }
1755     }
1756   gdk_window_show (tree_view->priv->bin_window);
1757
1758   gtk_tree_view_map_buttons (tree_view);
1759
1760   gdk_window_show (widget->window);
1761 }
1762
1763 static void
1764 gtk_tree_view_realize (GtkWidget *widget)
1765 {
1766   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1767   GList *tmp_list;
1768   GdkWindowAttr attributes;
1769   gint attributes_mask;
1770
1771   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1772
1773   /* Make the main, clipping window */
1774   attributes.window_type = GDK_WINDOW_CHILD;
1775   attributes.x = widget->allocation.x;
1776   attributes.y = widget->allocation.y;
1777   attributes.width = widget->allocation.width;
1778   attributes.height = widget->allocation.height;
1779   attributes.wclass = GDK_INPUT_OUTPUT;
1780   attributes.visual = gtk_widget_get_visual (widget);
1781   attributes.colormap = gtk_widget_get_colormap (widget);
1782   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1783
1784   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1785
1786   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1787                                    &attributes, attributes_mask);
1788   gdk_window_set_user_data (widget->window, widget);
1789
1790   /* Make the window for the tree */
1791   attributes.x = 0;
1792   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1793   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1794   attributes.height = widget->allocation.height;
1795   attributes.event_mask = (GDK_EXPOSURE_MASK |
1796                            GDK_SCROLL_MASK |
1797                            GDK_POINTER_MOTION_MASK |
1798                            GDK_ENTER_NOTIFY_MASK |
1799                            GDK_LEAVE_NOTIFY_MASK |
1800                            GDK_BUTTON_PRESS_MASK |
1801                            GDK_BUTTON_RELEASE_MASK |
1802                            gtk_widget_get_events (widget));
1803
1804   tree_view->priv->bin_window = gdk_window_new (widget->window,
1805                                                 &attributes, attributes_mask);
1806   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1807
1808   /* Make the column header window */
1809   attributes.x = 0;
1810   attributes.y = 0;
1811   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1812   attributes.height = tree_view->priv->header_height;
1813   attributes.event_mask = (GDK_EXPOSURE_MASK |
1814                            GDK_SCROLL_MASK |
1815                            GDK_BUTTON_PRESS_MASK |
1816                            GDK_BUTTON_RELEASE_MASK |
1817                            GDK_KEY_PRESS_MASK |
1818                            GDK_KEY_RELEASE_MASK |
1819                            gtk_widget_get_events (widget));
1820
1821   tree_view->priv->header_window = gdk_window_new (widget->window,
1822                                                    &attributes, attributes_mask);
1823   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1824
1825   /* Add them all up. */
1826   widget->style = gtk_style_attach (widget->style, widget->window);
1827   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1828   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1829   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1830
1831   tmp_list = tree_view->priv->children;
1832   while (tmp_list)
1833     {
1834       GtkTreeViewChild *child = tmp_list->data;
1835       tmp_list = tmp_list->next;
1836
1837       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1838     }
1839
1840   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1841     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1842
1843   /* Need to call those here, since they create GCs */
1844   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1845   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1846
1847   install_presize_handler (tree_view);
1848 }
1849
1850 static void
1851 gtk_tree_view_unrealize (GtkWidget *widget)
1852 {
1853   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1854   GtkTreeViewPrivate *priv = tree_view->priv;
1855   GList *list;
1856
1857   if (priv->scroll_timeout != 0)
1858     {
1859       g_source_remove (priv->scroll_timeout);
1860       priv->scroll_timeout = 0;
1861     }
1862
1863   if (priv->auto_expand_timeout != 0)
1864     {
1865       g_source_remove (priv->auto_expand_timeout);
1866       priv->auto_expand_timeout = 0;
1867     }
1868
1869   if (priv->open_dest_timeout != 0)
1870     {
1871       g_source_remove (priv->open_dest_timeout);
1872       priv->open_dest_timeout = 0;
1873     }
1874
1875   remove_expand_collapse_timeout (tree_view);
1876
1877   if (priv->presize_handler_timer != 0)
1878     {
1879       g_source_remove (priv->presize_handler_timer);
1880       priv->presize_handler_timer = 0;
1881     }
1882
1883   if (priv->validate_rows_timer != 0)
1884     {
1885       g_source_remove (priv->validate_rows_timer);
1886       priv->validate_rows_timer = 0;
1887     }
1888
1889   if (priv->scroll_sync_timer != 0)
1890     {
1891       g_source_remove (priv->scroll_sync_timer);
1892       priv->scroll_sync_timer = 0;
1893     }
1894
1895   if (priv->typeselect_flush_timeout)
1896     {
1897       g_source_remove (priv->typeselect_flush_timeout);
1898       priv->typeselect_flush_timeout = 0;
1899     }
1900
1901   for (list = priv->columns; list; list = list->next)
1902     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1903
1904   gdk_window_set_user_data (priv->bin_window, NULL);
1905   gdk_window_destroy (priv->bin_window);
1906   priv->bin_window = NULL;
1907
1908   gdk_window_set_user_data (priv->header_window, NULL);
1909   gdk_window_destroy (priv->header_window);
1910   priv->header_window = NULL;
1911
1912   if (priv->drag_window)
1913     {
1914       gdk_window_set_user_data (priv->drag_window, NULL);
1915       gdk_window_destroy (priv->drag_window);
1916       priv->drag_window = NULL;
1917     }
1918
1919   if (priv->drag_highlight_window)
1920     {
1921       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1922       gdk_window_destroy (priv->drag_highlight_window);
1923       priv->drag_highlight_window = NULL;
1924     }
1925
1926   if (priv->tree_line_gc)
1927     {
1928       g_object_unref (priv->tree_line_gc);
1929       priv->tree_line_gc = NULL;
1930     }
1931
1932   if (priv->grid_line_gc)
1933     {
1934       g_object_unref (priv->grid_line_gc);
1935       priv->grid_line_gc = NULL;
1936     }
1937
1938   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
1939 }
1940
1941 /* GtkWidget::size_request helper */
1942 static void
1943 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1944 {
1945   GList *list;
1946
1947   tree_view->priv->header_height = 0;
1948
1949   if (tree_view->priv->model)
1950     {
1951       for (list = tree_view->priv->columns; list; list = list->next)
1952         {
1953           GtkRequisition requisition;
1954           GtkTreeViewColumn *column = list->data;
1955
1956           if (column->button == NULL)
1957             continue;
1958
1959           column = list->data;
1960
1961           gtk_widget_size_request (column->button, &requisition);
1962           column->button_request = requisition.width;
1963           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1964         }
1965     }
1966 }
1967
1968
1969 /* Called only by ::size_request */
1970 static void
1971 gtk_tree_view_update_size (GtkTreeView *tree_view)
1972 {
1973   GList *list;
1974   GtkTreeViewColumn *column;
1975   gint i;
1976
1977   if (tree_view->priv->model == NULL)
1978     {
1979       tree_view->priv->width = 0;
1980       tree_view->priv->prev_width = 0;
1981       tree_view->priv->height = 0;
1982       return;
1983     }
1984
1985   tree_view->priv->prev_width = tree_view->priv->width;
1986   tree_view->priv->width = 0;
1987
1988   /* keep this in sync with size_allocate below */
1989   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1990     {
1991       gint real_requested_width = 0;
1992       column = list->data;
1993       if (!column->visible)
1994         continue;
1995
1996       if (column->use_resized_width)
1997         {
1998           real_requested_width = column->resized_width;
1999         }
2000       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2001         {
2002           real_requested_width = column->fixed_width;
2003         }
2004       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2005         {
2006           real_requested_width = MAX (column->requested_width, column->button_request);
2007         }
2008       else
2009         {
2010           real_requested_width = column->requested_width;
2011         }
2012
2013       if (column->min_width != -1)
2014         real_requested_width = MAX (real_requested_width, column->min_width);
2015       if (column->max_width != -1)
2016         real_requested_width = MIN (real_requested_width, column->max_width);
2017
2018       tree_view->priv->width += real_requested_width;
2019     }
2020
2021   if (tree_view->priv->tree == NULL)
2022     tree_view->priv->height = 0;
2023   else
2024     tree_view->priv->height = tree_view->priv->tree->root->offset;
2025 }
2026
2027 static void
2028 gtk_tree_view_size_request (GtkWidget      *widget,
2029                             GtkRequisition *requisition)
2030 {
2031   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2032   GList *tmp_list;
2033
2034   /* we validate some rows initially just to make sure we have some size.
2035    * In practice, with a lot of static lists, this should get a good width.
2036    */
2037   do_validate_rows (tree_view, FALSE);
2038   gtk_tree_view_size_request_columns (tree_view);
2039   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2040
2041   requisition->width = tree_view->priv->width;
2042   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2043
2044   tmp_list = tree_view->priv->children;
2045
2046   while (tmp_list)
2047     {
2048       GtkTreeViewChild *child = tmp_list->data;
2049       GtkRequisition child_requisition;
2050
2051       tmp_list = tmp_list->next;
2052
2053       if (GTK_WIDGET_VISIBLE (child->widget))
2054         gtk_widget_size_request (child->widget, &child_requisition);
2055     }
2056 }
2057
2058 static int
2059 gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
2060 {
2061   int width = 0;
2062   GList *list;
2063   gboolean rtl;
2064
2065   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2066   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2067        list->data != tree_view->priv->expander_column;
2068        list = (rtl ? list->prev : list->next))
2069     {
2070       GtkTreeViewColumn *column = list->data;
2071
2072       width += column->width;
2073     }
2074
2075   return width;
2076 }
2077
2078 static void
2079 invalidate_column (GtkTreeView       *tree_view,
2080                    GtkTreeViewColumn *column)
2081 {
2082   gint column_offset = 0;
2083   GList *list;
2084   GtkWidget *widget = GTK_WIDGET (tree_view);
2085   gboolean rtl;
2086
2087   if (!GTK_WIDGET_REALIZED (widget))
2088     return;
2089
2090   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2091   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2092        list;
2093        list = (rtl ? list->prev : list->next))
2094     {
2095       GtkTreeViewColumn *tmpcolumn = list->data;
2096       if (tmpcolumn == column)
2097         {
2098           GdkRectangle invalid_rect;
2099
2100           invalid_rect.x = column_offset;
2101           invalid_rect.y = 0;
2102           invalid_rect.width = column->width;
2103           invalid_rect.height = widget->allocation.height;
2104
2105           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2106           break;
2107         }
2108
2109       column_offset += tmpcolumn->width;
2110     }
2111 }
2112
2113 static void
2114 invalidate_last_column (GtkTreeView *tree_view)
2115 {
2116   GList *last_column;
2117   gboolean rtl;
2118
2119   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2120
2121   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2122        last_column;
2123        last_column = (rtl ? last_column->next : last_column->prev))
2124     {
2125       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2126         {
2127           invalidate_column (tree_view, last_column->data);
2128           return;
2129         }
2130     }
2131 }
2132
2133 static gint
2134 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2135                                                     GtkTreeViewColumn *column)
2136 {
2137   gint real_requested_width;
2138
2139   if (column->use_resized_width)
2140     {
2141       real_requested_width = column->resized_width;
2142     }
2143   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2144     {
2145       real_requested_width = column->fixed_width;
2146     }
2147   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2148     {
2149       real_requested_width = MAX (column->requested_width, column->button_request);
2150     }
2151   else
2152     {
2153       real_requested_width = column->requested_width;
2154       if (real_requested_width < 0)
2155         real_requested_width = 0;
2156     }
2157
2158   if (column->min_width != -1)
2159     real_requested_width = MAX (real_requested_width, column->min_width);
2160   if (column->max_width != -1)
2161     real_requested_width = MIN (real_requested_width, column->max_width);
2162
2163   return real_requested_width;
2164 }
2165
2166 /* GtkWidget::size_allocate helper */
2167 static void
2168 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2169                                      gboolean  *width_changed)
2170 {
2171   GtkTreeView *tree_view;
2172   GList *list, *first_column, *last_column;
2173   GtkTreeViewColumn *column;
2174   GtkAllocation allocation;
2175   gint width = 0;
2176   gint extra, extra_per_column, extra_for_last;
2177   gint full_requested_width = 0;
2178   gint number_of_expand_columns = 0;
2179   gboolean column_changed = FALSE;
2180   gboolean rtl;
2181   gboolean update_expand;
2182
2183   tree_view = GTK_TREE_VIEW (widget);
2184
2185   for (last_column = g_list_last (tree_view->priv->columns);
2186        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2187        last_column = last_column->prev)
2188     ;
2189   if (last_column == NULL)
2190     return;
2191
2192   for (first_column = g_list_first (tree_view->priv->columns);
2193        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2194        first_column = first_column->next)
2195     ;
2196
2197   allocation.y = 0;
2198   allocation.height = tree_view->priv->header_height;
2199
2200   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2201
2202   /* find out how many extra space and expandable columns we have */
2203   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2204     {
2205       column = (GtkTreeViewColumn *)list->data;
2206
2207       if (!column->visible)
2208         continue;
2209
2210       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2211
2212       if (column->expand)
2213         number_of_expand_columns++;
2214     }
2215
2216   /* Only update the expand value if the width of the widget has changed,
2217    * or the number of expand columns has changed, or if there are no expand
2218    * columns, or if we didn't have an size-allocation yet after the
2219    * last validated node.
2220    */
2221   update_expand = (width_changed && *width_changed == TRUE)
2222       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2223       || number_of_expand_columns == 0
2224       || tree_view->priv->post_validation_flag == TRUE;
2225
2226   tree_view->priv->post_validation_flag = FALSE;
2227
2228   if (!update_expand)
2229     {
2230       extra = tree_view->priv->last_extra_space;
2231       extra_for_last = MAX (widget->allocation.width - full_requested_width - extra, 0);
2232     }
2233   else
2234     {
2235       extra = MAX (widget->allocation.width - full_requested_width, 0);
2236       extra_for_last = 0;
2237
2238       tree_view->priv->last_extra_space = extra;
2239     }
2240
2241   if (number_of_expand_columns > 0)
2242     extra_per_column = extra/number_of_expand_columns;
2243   else
2244     extra_per_column = 0;
2245
2246   if (update_expand)
2247     {
2248       tree_view->priv->last_extra_space_per_column = extra_per_column;
2249       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2250     }
2251
2252   for (list = (rtl ? last_column : first_column);
2253        list != (rtl ? first_column->prev : last_column->next);
2254        list = (rtl ? list->prev : list->next))
2255     {
2256       gint real_requested_width = 0;
2257       gint old_width;
2258
2259       column = list->data;
2260       old_width = column->width;
2261
2262       if (!column->visible)
2263         continue;
2264
2265       /* We need to handle the dragged button specially.
2266        */
2267       if (column == tree_view->priv->drag_column)
2268         {
2269           GtkAllocation drag_allocation;
2270           gdk_drawable_get_size (tree_view->priv->drag_window,
2271                                  &(drag_allocation.width),
2272                                  &(drag_allocation.height));
2273           drag_allocation.x = 0;
2274           drag_allocation.y = 0;
2275           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2276                                     &drag_allocation);
2277           width += drag_allocation.width;
2278           continue;
2279         }
2280
2281       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2282
2283       allocation.x = width;
2284       column->width = real_requested_width;
2285
2286       if (column->expand)
2287         {
2288           if (number_of_expand_columns == 1)
2289             {
2290               /* We add the remander to the last column as
2291                * */
2292               column->width += extra;
2293             }
2294           else
2295             {
2296               column->width += extra_per_column;
2297               extra -= extra_per_column;
2298               number_of_expand_columns --;
2299             }
2300         }
2301       else if (number_of_expand_columns == 0 &&
2302                list == last_column)
2303         {
2304           column->width += extra;
2305         }
2306
2307       /* In addition to expand, the last column can get even more
2308        * extra space so all available space is filled up.
2309        */
2310       if (extra_for_last > 0 && list == last_column)
2311         column->width += extra_for_last;
2312
2313       g_object_notify (G_OBJECT (column), "width");
2314
2315       allocation.width = column->width;
2316       width += column->width;
2317
2318       if (column->width > old_width)
2319         column_changed = TRUE;
2320
2321       gtk_widget_size_allocate (column->button, &allocation);
2322
2323       if (column->window)
2324         gdk_window_move_resize (column->window,
2325                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2326                                 allocation.y,
2327                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2328     }
2329
2330   /* We change the width here.  The user might have been resizing columns,
2331    * so the total width of the tree view changes.
2332    */
2333   tree_view->priv->width = width;
2334   if (width_changed)
2335     *width_changed = TRUE;
2336
2337   if (column_changed)
2338     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2339 }
2340
2341
2342 static void
2343 gtk_tree_view_size_allocate (GtkWidget     *widget,
2344                              GtkAllocation *allocation)
2345 {
2346   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2347   GList *tmp_list;
2348   gboolean width_changed = FALSE;
2349   gint old_width = widget->allocation.width;
2350
2351   if (allocation->width != widget->allocation.width)
2352     width_changed = TRUE;
2353
2354   widget->allocation = *allocation;
2355
2356   tmp_list = tree_view->priv->children;
2357
2358   while (tmp_list)
2359     {
2360       GtkAllocation allocation;
2361
2362       GtkTreeViewChild *child = tmp_list->data;
2363       tmp_list = tmp_list->next;
2364
2365       /* totally ignore our child's requisition */
2366       allocation.x = child->x;
2367       allocation.y = child->y;
2368       allocation.width = child->width;
2369       allocation.height = child->height;
2370       gtk_widget_size_allocate (child->widget, &allocation);
2371     }
2372
2373   /* We size-allocate the columns first because the width of the
2374    * tree view (used in updating the adjustments below) might change.
2375    */
2376   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2377
2378   tree_view->priv->hadjustment->page_size = allocation->width;
2379   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2380   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2381   tree_view->priv->hadjustment->lower = 0;
2382   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2383
2384   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2385     {
2386       if (allocation->width < tree_view->priv->width)
2387         {
2388           if (tree_view->priv->init_hadjust_value)
2389             {
2390               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2391               tree_view->priv->init_hadjust_value = FALSE;
2392             }
2393           else if (allocation->width != old_width)
2394             {
2395               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2396             }
2397           else
2398             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);
2399         }
2400       else
2401         {
2402           tree_view->priv->hadjustment->value = 0;
2403           tree_view->priv->init_hadjust_value = TRUE;
2404         }
2405     }
2406   else
2407     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2408       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2409
2410   gtk_adjustment_changed (tree_view->priv->hadjustment);
2411
2412   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2413   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2414   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2415   tree_view->priv->vadjustment->lower = 0;
2416   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2417
2418   gtk_adjustment_changed (tree_view->priv->vadjustment);
2419
2420   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2421   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2422     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2423   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2424     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2425                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2426   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2427     gtk_tree_view_top_row_to_dy (tree_view);
2428   else
2429     gtk_tree_view_dy_to_top_row (tree_view);
2430
2431   if (GTK_WIDGET_REALIZED (widget))
2432     {
2433       gdk_window_move_resize (widget->window,
2434                               allocation->x, allocation->y,
2435                               allocation->width, allocation->height);
2436       gdk_window_move_resize (tree_view->priv->header_window,
2437                               - (gint) tree_view->priv->hadjustment->value,
2438                               0,
2439                               MAX (tree_view->priv->width, allocation->width),
2440                               tree_view->priv->header_height);
2441       gdk_window_move_resize (tree_view->priv->bin_window,
2442                               - (gint) tree_view->priv->hadjustment->value,
2443                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2444                               MAX (tree_view->priv->width, allocation->width),
2445                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2446     }
2447
2448   if (tree_view->priv->tree == NULL)
2449     invalidate_empty_focus (tree_view);
2450
2451   if (GTK_WIDGET_REALIZED (widget))
2452     {
2453       gboolean has_expand_column = FALSE;
2454       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2455         {
2456           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2457             {
2458               has_expand_column = TRUE;
2459               break;
2460             }
2461         }
2462
2463       if (width_changed && tree_view->priv->expander_column)
2464         {
2465           /* Might seem awkward, but is the best heuristic I could come up
2466            * with.  Only if the width of the columns before the expander
2467            * changes, we will update the prelight status.  It is this
2468            * width that makes the expander move vertically.  Always updating
2469            * prelight status causes trouble with hover selections.
2470            */
2471           gint width_before_expander;
2472
2473           width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view);
2474
2475           if (tree_view->priv->prev_width_before_expander
2476               != width_before_expander)
2477               update_prelight (tree_view,
2478                                -tree_view->priv->event_last_x,
2479                                -tree_view->priv->event_last_y);
2480
2481           tree_view->priv->prev_width_before_expander = width_before_expander;
2482         }
2483
2484       /* This little hack only works if we have an LTR locale, and no column has the  */
2485       if (width_changed)
2486         {
2487           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2488               ! has_expand_column)
2489             invalidate_last_column (tree_view);
2490           else
2491             gtk_widget_queue_draw (widget);
2492         }
2493     }
2494 }
2495
2496 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2497 static void
2498 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2499 {
2500   if (GTK_WIDGET_CAN_FOCUS (tree_view) && !GTK_WIDGET_HAS_FOCUS (tree_view))
2501     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2502   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2503 }
2504
2505 static inline gboolean
2506 row_is_separator (GtkTreeView *tree_view,
2507                   GtkTreeIter *iter,
2508                   GtkTreePath *path)
2509 {
2510   gboolean is_separator = FALSE;
2511
2512   if (tree_view->priv->row_separator_func)
2513     {
2514       GtkTreeIter tmpiter;
2515
2516       if (iter)
2517         tmpiter = *iter;
2518       else
2519         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2520
2521       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2522                                                           &tmpiter,
2523                                                           tree_view->priv->row_separator_data);
2524     }
2525
2526   return is_separator;
2527 }
2528
2529 static gboolean
2530 gtk_tree_view_button_press (GtkWidget      *widget,
2531                             GdkEventButton *event)
2532 {
2533   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2534   GList *list;
2535   GtkTreeViewColumn *column = NULL;
2536   gint i;
2537   GdkRectangle background_area;
2538   GdkRectangle cell_area;
2539   gint vertical_separator;
2540   gint horizontal_separator;
2541   gboolean path_is_selectable;
2542   gboolean rtl;
2543
2544   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2545   gtk_tree_view_stop_editing (tree_view, FALSE);
2546   gtk_widget_style_get (widget,
2547                         "vertical-separator", &vertical_separator,
2548                         "horizontal-separator", &horizontal_separator,
2549                         NULL);
2550
2551
2552   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2553    * we're done handling the button press.
2554    */
2555
2556   if (event->window == tree_view->priv->bin_window)
2557     {
2558       GtkRBNode *node;
2559       GtkRBTree *tree;
2560       GtkTreePath *path;
2561       gchar *path_string;
2562       gint depth;
2563       gint new_y;
2564       gint y_offset;
2565       gint dval;
2566       gint pre_val, aft_val;
2567       GtkTreeViewColumn *column = NULL;
2568       GtkCellRenderer *focus_cell = NULL;
2569       gint column_handled_click = FALSE;
2570       gboolean row_double_click = FALSE;
2571       gboolean rtl;
2572       gboolean node_selected;
2573
2574       /* Empty tree? */
2575       if (tree_view->priv->tree == NULL)
2576         {
2577           grab_focus_and_unset_draw_keyfocus (tree_view);
2578           return TRUE;
2579         }
2580
2581       /* are we in an arrow? */
2582       if (tree_view->priv->prelight_node &&
2583           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2584           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2585         {
2586           if (event->button == 1)
2587             {
2588               gtk_grab_add (widget);
2589               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2590               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2591               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2592                                         tree_view->priv->prelight_tree,
2593                                         tree_view->priv->prelight_node,
2594                                         event->x,
2595                                         event->y);
2596             }
2597
2598           grab_focus_and_unset_draw_keyfocus (tree_view);
2599           return TRUE;
2600         }
2601
2602       /* find the node that was clicked */
2603       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2604       if (new_y < 0)
2605         new_y = 0;
2606       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2607
2608       if (node == NULL)
2609         {
2610           /* We clicked in dead space */
2611           grab_focus_and_unset_draw_keyfocus (tree_view);
2612           return TRUE;
2613         }
2614
2615       /* Get the path and the node */
2616       path = _gtk_tree_view_find_path (tree_view, tree, node);
2617       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2618
2619       if (!path_is_selectable)
2620         {
2621           gtk_tree_path_free (path);
2622           grab_focus_and_unset_draw_keyfocus (tree_view);
2623           return TRUE;
2624         }
2625
2626       depth = gtk_tree_path_get_depth (path);
2627       background_area.y = y_offset + event->y;
2628       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2629       background_area.x = 0;
2630
2631
2632       /* Let the column have a chance at selecting it. */
2633       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2634       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2635            list; list = (rtl ? list->prev : list->next))
2636         {
2637           GtkTreeViewColumn *candidate = list->data;
2638
2639           if (!candidate->visible)
2640             continue;
2641
2642           background_area.width = candidate->width;
2643           if ((background_area.x > (gint) event->x) ||
2644               (background_area.x + background_area.width <= (gint) event->x))
2645             {
2646               background_area.x += background_area.width;
2647               continue;
2648             }
2649
2650           /* we found the focus column */
2651           column = candidate;
2652           cell_area = background_area;
2653           cell_area.width -= horizontal_separator;
2654           cell_area.height -= vertical_separator;
2655           cell_area.x += horizontal_separator/2;
2656           cell_area.y += vertical_separator/2;
2657           if (gtk_tree_view_is_expander_column (tree_view, column))
2658             {
2659               if (!rtl)
2660                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2661               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2662
2663               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2664                 {
2665                   if (!rtl)
2666                     cell_area.x += depth * tree_view->priv->expander_size;
2667                   cell_area.width -= depth * tree_view->priv->expander_size;
2668                 }
2669             }
2670           break;
2671         }
2672
2673       if (column == NULL)
2674         {
2675           gtk_tree_path_free (path);
2676           grab_focus_and_unset_draw_keyfocus (tree_view);
2677           return FALSE;
2678         }
2679
2680       tree_view->priv->focus_column = column;
2681
2682       /* decide if we edit */
2683       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2684           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2685         {
2686           GtkTreePath *anchor;
2687           GtkTreeIter iter;
2688
2689           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2690           gtk_tree_view_column_cell_set_cell_data (column,
2691                                                    tree_view->priv->model,
2692                                                    &iter,
2693                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2694                                                    node->children?TRUE:FALSE);
2695
2696           if (tree_view->priv->anchor)
2697             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2698           else
2699             anchor = NULL;
2700
2701           if ((anchor && !gtk_tree_path_compare (anchor, path))
2702               || !_gtk_tree_view_column_has_editable_cell (column))
2703             {
2704               GtkCellEditable *cell_editable = NULL;
2705
2706               /* FIXME: get the right flags */
2707               guint flags = 0;
2708
2709               path_string = gtk_tree_path_to_string (path);
2710
2711               if (_gtk_tree_view_column_cell_event (column,
2712                                                     &cell_editable,
2713                                                     (GdkEvent *)event,
2714                                                     path_string,
2715                                                     &background_area,
2716                                                     &cell_area, flags))
2717                 {
2718                   if (cell_editable != NULL)
2719                     {
2720                       gint left, right;
2721                       GdkRectangle area;
2722
2723                       area = cell_area;
2724                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2725
2726                       area.x += left;
2727                       area.width -= right + left;
2728
2729                       gtk_tree_view_real_start_editing (tree_view,
2730                                                         column,
2731                                                         path,
2732                                                         cell_editable,
2733                                                         &area,
2734                                                         (GdkEvent *)event,
2735                                                         flags);
2736                       g_free (path_string);
2737                       gtk_tree_path_free (path);
2738                       gtk_tree_path_free (anchor);
2739                       return TRUE;
2740                     }
2741                   column_handled_click = TRUE;
2742                 }
2743               g_free (path_string);
2744             }
2745           if (anchor)
2746             gtk_tree_path_free (anchor);
2747         }
2748
2749       /* select */
2750       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2751       pre_val = tree_view->priv->vadjustment->value;
2752
2753       /* we only handle selection modifications on the first button press
2754        */
2755       if (event->type == GDK_BUTTON_PRESS)
2756         {
2757           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2758             tree_view->priv->ctrl_pressed = TRUE;
2759           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2760             tree_view->priv->shift_pressed = TRUE;
2761
2762           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2763           if (focus_cell)
2764             gtk_tree_view_column_focus_cell (column, focus_cell);
2765
2766           if (event->state & GDK_CONTROL_MASK)
2767             {
2768               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2769               gtk_tree_view_real_toggle_cursor_row (tree_view);
2770             }
2771           else if (event->state & GDK_SHIFT_MASK)
2772             {
2773               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2774               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2775             }
2776           else
2777             {
2778               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2779             }
2780
2781           tree_view->priv->ctrl_pressed = FALSE;
2782           tree_view->priv->shift_pressed = FALSE;
2783         }
2784
2785       /* the treeview may have been scrolled because of _set_cursor,
2786        * correct here
2787        */
2788
2789       aft_val = tree_view->priv->vadjustment->value;
2790       dval = pre_val - aft_val;
2791
2792       cell_area.y += dval;
2793       background_area.y += dval;
2794
2795       /* Save press to possibly begin a drag
2796        */
2797       if (!column_handled_click &&
2798           !tree_view->priv->in_grab &&
2799           tree_view->priv->pressed_button < 0)
2800         {
2801           tree_view->priv->pressed_button = event->button;
2802           tree_view->priv->press_start_x = event->x;
2803           tree_view->priv->press_start_y = event->y;
2804
2805           if (tree_view->priv->rubber_banding_enable
2806               && !node_selected
2807               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2808             {
2809               tree_view->priv->press_start_y += tree_view->priv->dy;
2810               tree_view->priv->rubber_band_x = event->x;
2811               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2812               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2813
2814               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2815                 tree_view->priv->rubber_band_ctrl = TRUE;
2816               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2817                 tree_view->priv->rubber_band_shift = TRUE;
2818             }
2819         }
2820
2821       /* Test if a double click happened on the same row. */
2822       if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
2823         {
2824           if (tree_view->priv->last_button_x != -1)
2825             {
2826               int double_click_time, double_click_distance;
2827
2828               g_object_get (gtk_settings_get_default (),
2829                             "gtk-double-click-time", &double_click_time,
2830                             "gtk-double-click-distance", &double_click_distance,
2831                             NULL);
2832
2833               /* Same conditions as _gdk_event_button_generate */
2834               if ((event->time < tree_view->priv->last_button_time + double_click_time) &&
2835                   (ABS (event->x - tree_view->priv->last_button_x) <= double_click_distance) &&
2836                   (ABS (event->y - tree_view->priv->last_button_y) <= double_click_distance))
2837                 {
2838                   /* We do no longer compare paths of this row and the
2839                    * row clicked previously.  We use the double click
2840                    * distance to decide whether this is a valid click,
2841                    * allowing the mouse to slightly move over another row.
2842                    */
2843                   row_double_click = TRUE;
2844                 }
2845
2846               tree_view->priv->last_button_time = 0;
2847               tree_view->priv->last_button_x = -1;
2848               tree_view->priv->last_button_y = -1;
2849             }
2850           else
2851             {
2852               tree_view->priv->last_button_time = event->time;
2853               tree_view->priv->last_button_x = event->x;
2854               tree_view->priv->last_button_y = event->y;
2855             }
2856         }
2857
2858       if (row_double_click)
2859         {
2860           gtk_grab_remove (widget);
2861           gtk_tree_view_row_activated (tree_view, path, column);
2862
2863           if (tree_view->priv->pressed_button == event->button)
2864             tree_view->priv->pressed_button = -1;
2865         }
2866
2867       gtk_tree_path_free (path);
2868
2869       /* If we activated the row through a double click we don't want to grab
2870        * focus back, as moving focus to another widget is pretty common.
2871        */
2872       if (!row_double_click)
2873         grab_focus_and_unset_draw_keyfocus (tree_view);
2874
2875       return TRUE;
2876     }
2877
2878   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2879    */
2880   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2881     {
2882       column = list->data;
2883       if (event->window == column->window &&
2884           column->resizable &&
2885           column->window)
2886         {
2887           gpointer drag_data;
2888
2889           if (event->type == GDK_2BUTTON_PRESS &&
2890               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2891             {
2892               column->use_resized_width = FALSE;
2893               _gtk_tree_view_column_autosize (tree_view, column);
2894               return TRUE;
2895             }
2896
2897           if (gdk_pointer_grab (column->window, FALSE,
2898                                 GDK_POINTER_MOTION_HINT_MASK |
2899                                 GDK_BUTTON1_MOTION_MASK |
2900                                 GDK_BUTTON_RELEASE_MASK,
2901                                 NULL, NULL, event->time))
2902             return FALSE;
2903
2904           gtk_grab_add (widget);
2905           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2906           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2907
2908           /* block attached dnd signal handler */
2909           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2910           if (drag_data)
2911             g_signal_handlers_block_matched (widget,
2912                                              G_SIGNAL_MATCH_DATA,
2913                                              0, 0, NULL, NULL,
2914                                              drag_data);
2915
2916           tree_view->priv->drag_pos = i;
2917           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2918
2919           if (!GTK_WIDGET_HAS_FOCUS (widget))
2920             gtk_widget_grab_focus (widget);
2921
2922           return TRUE;
2923         }
2924     }
2925   return FALSE;
2926 }
2927
2928 /* GtkWidget::button_release_event helper */
2929 static gboolean
2930 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2931                                           GdkEventButton *event)
2932 {
2933   GtkTreeView *tree_view;
2934   GList *l;
2935   gboolean rtl;
2936
2937   tree_view = GTK_TREE_VIEW (widget);
2938
2939   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2940   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2941   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2942
2943   /* Move the button back */
2944   g_object_ref (tree_view->priv->drag_column->button);
2945   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2946   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2947   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2948   g_object_unref (tree_view->priv->drag_column->button);
2949   gtk_widget_queue_resize (widget);
2950   if (tree_view->priv->drag_column->resizable)
2951     {
2952       gdk_window_raise (tree_view->priv->drag_column->window);
2953       gdk_window_show (tree_view->priv->drag_column->window);
2954     }
2955   else
2956     gdk_window_hide (tree_view->priv->drag_column->window);
2957
2958   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2959
2960   if (rtl)
2961     {
2962       if (tree_view->priv->cur_reorder &&
2963           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2964         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2965                                          tree_view->priv->cur_reorder->right_column);
2966     }
2967   else
2968     {
2969       if (tree_view->priv->cur_reorder &&
2970           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2971         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2972                                          tree_view->priv->cur_reorder->left_column);
2973     }
2974   tree_view->priv->drag_column = NULL;
2975   gdk_window_hide (tree_view->priv->drag_window);
2976
2977   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2978     g_slice_free (GtkTreeViewColumnReorder, l->data);
2979   g_list_free (tree_view->priv->column_drag_info);
2980   tree_view->priv->column_drag_info = NULL;
2981   tree_view->priv->cur_reorder = NULL;
2982
2983   if (tree_view->priv->drag_highlight_window)
2984     gdk_window_hide (tree_view->priv->drag_highlight_window);
2985
2986   /* Reset our flags */
2987   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2988   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2989
2990   return TRUE;
2991 }
2992
2993 /* GtkWidget::button_release_event helper */
2994 static gboolean
2995 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2996                                             GdkEventButton *event)
2997 {
2998   GtkTreeView *tree_view;
2999   gpointer drag_data;
3000
3001   tree_view = GTK_TREE_VIEW (widget);
3002
3003   tree_view->priv->drag_pos = -1;
3004
3005   /* unblock attached dnd signal handler */
3006   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
3007   if (drag_data)
3008     g_signal_handlers_unblock_matched (widget,
3009                                        G_SIGNAL_MATCH_DATA,
3010                                        0, 0, NULL, NULL,
3011                                        drag_data);
3012
3013   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
3014   gtk_grab_remove (widget);
3015   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
3016                               event->time);
3017   return TRUE;
3018 }
3019
3020 static gboolean
3021 gtk_tree_view_button_release (GtkWidget      *widget,
3022                               GdkEventButton *event)
3023 {
3024   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3025
3026   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3027     return gtk_tree_view_button_release_drag_column (widget, event);
3028
3029   if (tree_view->priv->rubber_band_status)
3030     gtk_tree_view_stop_rubber_band (tree_view);
3031
3032   if (tree_view->priv->pressed_button == event->button)
3033     tree_view->priv->pressed_button = -1;
3034
3035   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3036     return gtk_tree_view_button_release_column_resize (widget, event);
3037
3038   if (tree_view->priv->button_pressed_node == NULL)
3039     return FALSE;
3040
3041   if (event->button == 1)
3042     {
3043       gtk_grab_remove (widget);
3044       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3045           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3046         {
3047           GtkTreePath *path = NULL;
3048
3049           path = _gtk_tree_view_find_path (tree_view,
3050                                            tree_view->priv->button_pressed_tree,
3051                                            tree_view->priv->button_pressed_node);
3052           /* Actually activate the node */
3053           if (tree_view->priv->button_pressed_node->children == NULL)
3054             gtk_tree_view_real_expand_row (tree_view, path,
3055                                            tree_view->priv->button_pressed_tree,
3056                                            tree_view->priv->button_pressed_node,
3057                                            FALSE, TRUE);
3058           else
3059             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3060                                              tree_view->priv->button_pressed_tree,
3061                                              tree_view->priv->button_pressed_node, TRUE);
3062           gtk_tree_path_free (path);
3063         }
3064
3065       tree_view->priv->button_pressed_tree = NULL;
3066       tree_view->priv->button_pressed_node = NULL;
3067     }
3068
3069   return TRUE;
3070 }
3071
3072 static gboolean
3073 gtk_tree_view_grab_broken (GtkWidget          *widget,
3074                            GdkEventGrabBroken *event)
3075 {
3076   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3077
3078   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3079     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3080
3081   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3082     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3083
3084   return TRUE;
3085 }
3086
3087 #if 0
3088 static gboolean
3089 gtk_tree_view_configure (GtkWidget *widget,
3090                          GdkEventConfigure *event)
3091 {
3092   GtkTreeView *tree_view;
3093
3094   tree_view = GTK_TREE_VIEW (widget);
3095   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3096
3097   return FALSE;
3098 }
3099 #endif
3100
3101 /* GtkWidget::motion_event function set.
3102  */
3103
3104 static gboolean
3105 coords_are_over_arrow (GtkTreeView *tree_view,
3106                        GtkRBTree   *tree,
3107                        GtkRBNode   *node,
3108                        /* these are in bin window coords */
3109                        gint         x,
3110                        gint         y)
3111 {
3112   GdkRectangle arrow;
3113   gint x2;
3114
3115   if (!GTK_WIDGET_REALIZED (tree_view))
3116     return FALSE;
3117
3118   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3119     return FALSE;
3120
3121   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3122
3123   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3124
3125   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3126
3127   arrow.width = x2 - arrow.x;
3128
3129   return (x >= arrow.x &&
3130           x < (arrow.x + arrow.width) &&
3131           y >= arrow.y &&
3132           y < (arrow.y + arrow.height));
3133 }
3134
3135 static gboolean
3136 auto_expand_timeout (gpointer data)
3137 {
3138   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3139   GtkTreePath *path;
3140
3141   if (tree_view->priv->prelight_node)
3142     {
3143       path = _gtk_tree_view_find_path (tree_view,
3144                                        tree_view->priv->prelight_tree,
3145                                        tree_view->priv->prelight_node);
3146
3147       if (tree_view->priv->prelight_node->children)
3148         gtk_tree_view_collapse_row (tree_view, path);
3149       else
3150         gtk_tree_view_expand_row (tree_view, path, FALSE);
3151
3152       gtk_tree_path_free (path);
3153     }
3154
3155   tree_view->priv->auto_expand_timeout = 0;
3156
3157   return FALSE;
3158 }
3159
3160 static void
3161 remove_auto_expand_timeout (GtkTreeView *tree_view)
3162 {
3163   if (tree_view->priv->auto_expand_timeout != 0)
3164     {
3165       g_source_remove (tree_view->priv->auto_expand_timeout);
3166       tree_view->priv->auto_expand_timeout = 0;
3167     }
3168 }
3169
3170 static void
3171 do_prelight (GtkTreeView *tree_view,
3172              GtkRBTree   *tree,
3173              GtkRBNode   *node,
3174              /* these are in bin_window coords */
3175              gint         x,
3176              gint         y)
3177 {
3178   if (tree_view->priv->prelight_tree == tree &&
3179       tree_view->priv->prelight_node == node)
3180     {
3181       /*  We are still on the same node,
3182           but we might need to take care of the arrow  */
3183
3184       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3185         {
3186           gboolean over_arrow;
3187           gboolean flag_set;
3188
3189           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3190           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3191                                              GTK_TREE_VIEW_ARROW_PRELIT);
3192
3193           if (over_arrow != flag_set)
3194             {
3195               if (over_arrow)
3196                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3197                                         GTK_TREE_VIEW_ARROW_PRELIT);
3198               else
3199                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3200                                           GTK_TREE_VIEW_ARROW_PRELIT);
3201
3202               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3203             }
3204         }
3205
3206       return;
3207     }
3208
3209   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3210     {
3211       /*  Unprelight the old node and arrow  */
3212
3213       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3214                              GTK_RBNODE_IS_PRELIT);
3215
3216       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3217           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3218         {
3219           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3220
3221           gtk_tree_view_draw_arrow (tree_view,
3222                                     tree_view->priv->prelight_tree,
3223                                     tree_view->priv->prelight_node,
3224                                     x,
3225                                     y);
3226         }
3227
3228       _gtk_tree_view_queue_draw_node (tree_view,
3229                                       tree_view->priv->prelight_tree,
3230                                       tree_view->priv->prelight_node,
3231                                       NULL);
3232     }
3233
3234
3235   if (tree_view->priv->hover_expand)
3236     remove_auto_expand_timeout (tree_view);
3237
3238   /*  Set the new prelight values  */
3239   tree_view->priv->prelight_node = node;
3240   tree_view->priv->prelight_tree = tree;
3241
3242   if (!node || !tree)
3243     return;
3244
3245   /*  Prelight the new node and arrow  */
3246
3247   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3248       && coords_are_over_arrow (tree_view, tree, node, x, y))
3249     {
3250       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3251
3252       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3253     }
3254
3255   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3256
3257   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3258
3259   if (tree_view->priv->hover_expand)
3260     {
3261       tree_view->priv->auto_expand_timeout =
3262         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3263     }
3264 }
3265
3266 static void
3267 prelight_or_select (GtkTreeView *tree_view,
3268                     GtkRBTree   *tree,
3269                     GtkRBNode   *node,
3270                     /* these are in bin_window coords */
3271                     gint         x,
3272                     gint         y)
3273 {
3274   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3275
3276   if (tree_view->priv->hover_selection &&
3277       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3278       !(tree_view->priv->edited_column &&
3279         tree_view->priv->edited_column->editable_widget))
3280     {
3281       if (node)
3282         {
3283           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3284             {
3285               GtkTreePath *path;
3286
3287               path = _gtk_tree_view_find_path (tree_view, tree, node);
3288               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3289               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3290                 {
3291                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3292                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3293                 }
3294               gtk_tree_path_free (path);
3295             }
3296         }
3297
3298       else if (mode == GTK_SELECTION_SINGLE)
3299         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3300     }
3301
3302     do_prelight (tree_view, tree, node, x, y);
3303 }
3304
3305 static void
3306 ensure_unprelighted (GtkTreeView *tree_view)
3307 {
3308   do_prelight (tree_view,
3309                NULL, NULL,
3310                -1000, -1000); /* coords not possibly over an arrow */
3311
3312   g_assert (tree_view->priv->prelight_node == NULL);
3313 }
3314
3315 static void
3316 update_prelight (GtkTreeView *tree_view,
3317                  gint         x,
3318                  gint         y)
3319 {
3320   int new_y;
3321   GtkRBTree *tree;
3322   GtkRBNode *node;
3323
3324   if (x == -10000)
3325     {
3326       ensure_unprelighted (tree_view);
3327       return;
3328     }
3329
3330   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
3331   if (new_y < 0)
3332     new_y = 0;
3333
3334   _gtk_rbtree_find_offset (tree_view->priv->tree,
3335                            new_y, &tree, &node);
3336
3337   if (node)
3338     prelight_or_select (tree_view, tree, node, x, y);
3339 }
3340
3341
3342
3343
3344 /* Our motion arrow is either a box (in the case of the original spot)
3345  * or an arrow.  It is expander_size wide.
3346  */
3347 /*
3348  * 11111111111111
3349  * 01111111111110
3350  * 00111111111100
3351  * 00011111111000
3352  * 00001111110000
3353  * 00000111100000
3354  * 00000111100000
3355  * 00000111100000
3356  * ~ ~ ~ ~ ~ ~ ~
3357  * 00000111100000
3358  * 00000111100000
3359  * 00000111100000
3360  * 00001111110000
3361  * 00011111111000
3362  * 00111111111100
3363  * 01111111111110
3364  * 11111111111111
3365  */
3366
3367 static void
3368 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3369 {
3370   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3371   GtkWidget *widget = GTK_WIDGET (tree_view);
3372   GdkBitmap *mask = NULL;
3373   gint x;
3374   gint y;
3375   gint width;
3376   gint height;
3377   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3378   GdkWindowAttr attributes;
3379   guint attributes_mask;
3380
3381   if (!reorder ||
3382       reorder->left_column == tree_view->priv->drag_column ||
3383       reorder->right_column == tree_view->priv->drag_column)
3384     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3385   else if (reorder->left_column || reorder->right_column)
3386     {
3387       GdkRectangle visible_rect;
3388       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3389       if (reorder->left_column)
3390         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3391       else
3392         x = reorder->right_column->button->allocation.x;
3393
3394       if (x < visible_rect.x)
3395         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3396       else if (x > visible_rect.x + visible_rect.width)
3397         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3398       else
3399         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3400     }
3401
3402   /* We want to draw the rectangle over the initial location. */
3403   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3404     {
3405       GdkGC *gc;
3406       GdkColor col;
3407
3408       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3409         {
3410           if (tree_view->priv->drag_highlight_window)
3411             {
3412               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3413                                         NULL);
3414               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3415             }
3416
3417           attributes.window_type = GDK_WINDOW_CHILD;
3418           attributes.wclass = GDK_INPUT_OUTPUT;
3419           attributes.x = tree_view->priv->drag_column_x;
3420           attributes.y = 0;
3421           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3422           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3423           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3424           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3425           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3426           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3427           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3428           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3429
3430           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3431           gc = gdk_gc_new (mask);
3432           col.pixel = 1;
3433           gdk_gc_set_foreground (gc, &col);
3434           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3435           col.pixel = 0;
3436           gdk_gc_set_foreground(gc, &col);
3437           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3438           g_object_unref (gc);
3439
3440           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3441                                          mask, 0, 0);
3442           if (mask) g_object_unref (mask);
3443           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3444         }
3445     }
3446   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3447     {
3448       gint i, j = 1;
3449       GdkGC *gc;
3450       GdkColor col;
3451
3452       width = tree_view->priv->expander_size;
3453
3454       /* Get x, y, width, height of arrow */
3455       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3456       if (reorder->left_column)
3457         {
3458           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3459           height = reorder->left_column->button->allocation.height;
3460         }
3461       else
3462         {
3463           x += reorder->right_column->button->allocation.x - width/2;
3464           height = reorder->right_column->button->allocation.height;
3465         }
3466       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3467       height += tree_view->priv->expander_size;
3468
3469       /* Create the new window */
3470       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3471         {
3472           if (tree_view->priv->drag_highlight_window)
3473             {
3474               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3475                                         NULL);
3476               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3477             }
3478
3479           attributes.window_type = GDK_WINDOW_TEMP;
3480           attributes.wclass = GDK_INPUT_OUTPUT;
3481           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3482           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3483           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3484           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3485           attributes.x = x;
3486           attributes.y = y;
3487           attributes.width = width;
3488           attributes.height = height;
3489           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3490                                                                    &attributes, attributes_mask);
3491           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3492
3493           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3494           gc = gdk_gc_new (mask);
3495           col.pixel = 1;
3496           gdk_gc_set_foreground (gc, &col);
3497           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3498
3499           /* Draw the 2 arrows as per above */
3500           col.pixel = 0;
3501           gdk_gc_set_foreground (gc, &col);
3502           for (i = 0; i < width; i ++)
3503             {
3504               if (i == (width/2 - 1))
3505                 continue;
3506               gdk_draw_line (mask, gc, i, j, i, height - j);
3507               if (i < (width/2 - 1))
3508                 j++;
3509               else
3510                 j--;
3511             }
3512           g_object_unref (gc);
3513           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3514                                          mask, 0, 0);
3515           if (mask) g_object_unref (mask);
3516         }
3517
3518       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3519       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3520     }
3521   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3522            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3523     {
3524       gint i, j = 1;
3525       GdkGC *gc;
3526       GdkColor col;
3527
3528       width = tree_view->priv->expander_size;
3529
3530       /* Get x, y, width, height of arrow */
3531       width = width/2; /* remember, the arrow only takes half the available width */
3532       gdk_window_get_origin (widget->window, &x, &y);
3533       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3534         x += widget->allocation.width - width;
3535
3536       if (reorder->left_column)
3537         height = reorder->left_column->button->allocation.height;
3538       else
3539         height = reorder->right_column->button->allocation.height;
3540
3541       y -= tree_view->priv->expander_size;
3542       height += 2*tree_view->priv->expander_size;
3543
3544       /* Create the new window */
3545       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3546           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3547         {
3548           if (tree_view->priv->drag_highlight_window)
3549             {
3550               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3551                                         NULL);
3552               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3553             }
3554
3555           attributes.window_type = GDK_WINDOW_TEMP;
3556           attributes.wclass = GDK_INPUT_OUTPUT;
3557           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3558           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3559           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3560           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3561           attributes.x = x;
3562           attributes.y = y;
3563           attributes.width = width;
3564           attributes.height = height;
3565           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3566           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3567
3568           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3569           gc = gdk_gc_new (mask);
3570           col.pixel = 1;
3571           gdk_gc_set_foreground (gc, &col);
3572           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3573
3574           /* Draw the 2 arrows as per above */
3575           col.pixel = 0;
3576           gdk_gc_set_foreground (gc, &col);
3577           j = tree_view->priv->expander_size;
3578           for (i = 0; i < width; i ++)
3579             {
3580               gint k;
3581               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3582                 k = width - i - 1;
3583               else
3584                 k = i;
3585               gdk_draw_line (mask, gc, k, j, k, height - j);
3586               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3587               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3588               j--;
3589             }
3590           g_object_unref (gc);
3591           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3592                                          mask, 0, 0);
3593           if (mask) g_object_unref (mask);
3594         }
3595
3596       tree_view->priv->drag_column_window_state = arrow_type;
3597       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3598    }
3599   else
3600     {
3601       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3602       gdk_window_hide (tree_view->priv->drag_highlight_window);
3603       return;
3604     }
3605
3606   gdk_window_show (tree_view->priv->drag_highlight_window);
3607   gdk_window_raise (tree_view->priv->drag_highlight_window);
3608 }
3609
3610 static gboolean
3611 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3612                                     GdkEventMotion *event)
3613 {
3614   gint x;
3615   gint new_width;
3616   GtkTreeViewColumn *column;
3617   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3618
3619   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3620
3621   if (event->is_hint || event->window != widget->window)
3622     gtk_widget_get_pointer (widget, &x, NULL);
3623   else
3624     x = event->x;
3625
3626   if (tree_view->priv->hadjustment)
3627     x += tree_view->priv->hadjustment->value;
3628
3629   new_width = gtk_tree_view_new_column_width (tree_view,
3630                                               tree_view->priv->drag_pos, &x);
3631   if (x != tree_view->priv->x_drag &&
3632       (new_width != column->fixed_width))
3633     {
3634       column->use_resized_width = TRUE;
3635       column->resized_width = new_width;
3636       if (column->expand)
3637         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3638       gtk_widget_queue_resize (widget);
3639     }
3640
3641   return FALSE;
3642 }
3643
3644
3645 static void
3646 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3647 {
3648   GtkTreeViewColumnReorder *reorder = NULL;
3649   GList *list;
3650   gint mouse_x;
3651
3652   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3653   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3654     {
3655       reorder = (GtkTreeViewColumnReorder *) list->data;
3656       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3657         break;
3658       reorder = NULL;
3659     }
3660
3661   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3662       return;*/
3663
3664   tree_view->priv->cur_reorder = reorder;
3665   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3666 }
3667
3668 static void
3669 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3670 {
3671   GdkRectangle visible_rect;
3672   gint y;
3673   gint offset;
3674   gfloat value;
3675
3676   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3677   y += tree_view->priv->dy;
3678
3679   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3680
3681   /* see if we are near the edge. */
3682   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3683   if (offset > 0)
3684     {
3685       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3686       if (offset < 0)
3687         return;
3688     }
3689
3690   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3691                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3692   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3693 }
3694
3695 static gboolean
3696 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3697 {
3698   GdkRectangle visible_rect;
3699   gint x;
3700   gint offset;
3701   gfloat value;
3702
3703   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3704
3705   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3706
3707   /* See if we are near the edge. */
3708   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3709   if (offset > 0)
3710     {
3711       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3712       if (offset < 0)
3713         return TRUE;
3714     }
3715   offset = offset/3;
3716
3717   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3718                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3719   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3720
3721   return TRUE;
3722
3723 }
3724
3725 static gboolean
3726 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3727                                   GdkEventMotion *event)
3728 {
3729   GtkTreeView *tree_view = (GtkTreeView *) widget;
3730   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3731   gint x, y;
3732
3733   /* Sanity Check */
3734   if ((column == NULL) ||
3735       (event->window != tree_view->priv->drag_window))
3736     return FALSE;
3737
3738   /* Handle moving the header */
3739   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3740   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3741              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3742   gdk_window_move (tree_view->priv->drag_window, x, y);
3743
3744   /* autoscroll, if needed */
3745   gtk_tree_view_horizontal_autoscroll (tree_view);
3746   /* Update the current reorder position and arrow; */
3747   gtk_tree_view_update_current_reorder (tree_view);
3748
3749   return TRUE;
3750 }
3751
3752 static void
3753 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3754 {
3755   remove_scroll_timeout (tree_view);
3756   gtk_grab_remove (GTK_WIDGET (tree_view));
3757
3758   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3759     {
3760       GtkTreePath *tmp_path;
3761
3762       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3763
3764       /* The anchor path should be set to the start path */
3765       tmp_path = _gtk_tree_view_find_path (tree_view,
3766                                            tree_view->priv->rubber_band_start_tree,
3767                                            tree_view->priv->rubber_band_start_node);
3768
3769       if (tree_view->priv->anchor)
3770         gtk_tree_row_reference_free (tree_view->priv->anchor);
3771
3772       tree_view->priv->anchor =
3773         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3774                                           tree_view->priv->model,
3775                                           tmp_path);
3776
3777       gtk_tree_path_free (tmp_path);
3778
3779       /* ... and the cursor to the end path */
3780       tmp_path = _gtk_tree_view_find_path (tree_view,
3781                                            tree_view->priv->rubber_band_end_tree,
3782                                            tree_view->priv->rubber_band_end_node);
3783       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3784       gtk_tree_path_free (tmp_path);
3785
3786       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3787     }
3788
3789   /* Clear status variables */
3790   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3791   tree_view->priv->rubber_band_shift = 0;
3792   tree_view->priv->rubber_band_ctrl = 0;
3793
3794   tree_view->priv->rubber_band_start_node = NULL;
3795   tree_view->priv->rubber_band_start_tree = NULL;
3796   tree_view->priv->rubber_band_end_node = NULL;
3797   tree_view->priv->rubber_band_end_tree = NULL;
3798 }
3799
3800 static void
3801 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3802                                                  GtkRBTree   *start_tree,
3803                                                  GtkRBNode   *start_node,
3804                                                  GtkRBTree   *end_tree,
3805                                                  GtkRBNode   *end_node,
3806                                                  gboolean     select,
3807                                                  gboolean     skip_start,
3808                                                  gboolean     skip_end)
3809 {
3810   if (start_node == end_node)
3811     return;
3812
3813   /* We skip the first node and jump inside the loop */
3814   if (skip_start)
3815     goto skip_first;
3816
3817   do
3818     {
3819       /* Small optimization by assuming insensitive nodes are never
3820        * selected.
3821        */
3822       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3823         {
3824           GtkTreePath *path;
3825           gboolean selectable;
3826
3827           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3828           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3829           gtk_tree_path_free (path);
3830
3831           if (!selectable)
3832             goto node_not_selectable;
3833         }
3834
3835       if (select)
3836         {
3837           if (tree_view->priv->rubber_band_shift)
3838             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3839           else if (tree_view->priv->rubber_band_ctrl)
3840             {
3841               /* Toggle the selection state */
3842               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3843                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3844               else
3845                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3846             }
3847           else
3848             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3849         }
3850       else
3851         {
3852           /* Mirror the above */
3853           if (tree_view->priv->rubber_band_shift)
3854             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3855           else if (tree_view->priv->rubber_band_ctrl)
3856             {
3857               /* Toggle the selection state */
3858               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3859                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3860               else
3861                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3862             }
3863           else
3864             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3865         }
3866
3867       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3868
3869 node_not_selectable:
3870       if (start_node == end_node)
3871         break;
3872
3873 skip_first:
3874
3875       if (start_node->children)
3876         {
3877           start_tree = start_node->children;
3878           start_node = start_tree->root;
3879           while (start_node->left != start_tree->nil)
3880             start_node = start_node->left;
3881         }
3882       else
3883         {
3884           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3885
3886           if (!start_tree)
3887             /* Ran out of tree */
3888             break;
3889         }
3890
3891       if (skip_end && start_node == end_node)
3892         break;
3893     }
3894   while (TRUE);
3895 }
3896
3897 static void
3898 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3899 {
3900   GtkRBTree *start_tree, *end_tree;
3901   GtkRBNode *start_node, *end_node;
3902
3903   _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);
3904   _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);
3905
3906   /* Handle the start area first */
3907   if (!tree_view->priv->rubber_band_start_node)
3908     {
3909       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3910                                                        start_tree,
3911                                                        start_node,
3912                                                        end_tree,
3913                                                        end_node,
3914                                                        TRUE,
3915                                                        FALSE,
3916                                                        FALSE);
3917     }
3918   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3919            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3920     {
3921       /* New node is above the old one; selection became bigger */
3922       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3923                                                        start_tree,
3924                                                        start_node,
3925                                                        tree_view->priv->rubber_band_start_tree,
3926                                                        tree_view->priv->rubber_band_start_node,
3927                                                        TRUE,
3928                                                        FALSE,
3929                                                        TRUE);
3930     }
3931   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3932            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3933     {
3934       /* New node is below the old one; selection became smaller */
3935       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3936                                                        tree_view->priv->rubber_band_start_tree,
3937                                                        tree_view->priv->rubber_band_start_node,
3938                                                        start_tree,
3939                                                        start_node,
3940                                                        FALSE,
3941                                                        FALSE,
3942                                                        TRUE);
3943     }
3944
3945   tree_view->priv->rubber_band_start_tree = start_tree;
3946   tree_view->priv->rubber_band_start_node = start_node;
3947
3948   /* Next, handle the end area */
3949   if (!tree_view->priv->rubber_band_end_node)
3950     {
3951       /* In the event this happens, start_node was also NULL; this case is
3952        * handled above.
3953        */
3954     }
3955   else if (!end_node)
3956     {
3957       /* Find the last node in the tree */
3958       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3959                                &end_tree, &end_node);
3960
3961       /* Selection reached end of the tree */
3962       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3963                                                        tree_view->priv->rubber_band_end_tree,
3964                                                        tree_view->priv->rubber_band_end_node,
3965                                                        end_tree,
3966                                                        end_node,
3967                                                        TRUE,
3968                                                        TRUE,
3969                                                        FALSE);
3970     }
3971   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3972            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3973     {
3974       /* New node is below the old one; selection became bigger */
3975       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3976                                                        tree_view->priv->rubber_band_end_tree,
3977                                                        tree_view->priv->rubber_band_end_node,
3978                                                        end_tree,
3979                                                        end_node,
3980                                                        TRUE,
3981                                                        TRUE,
3982                                                        FALSE);
3983     }
3984   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3985            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3986     {
3987       /* New node is above the old one; selection became smaller */
3988       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3989                                                        end_tree,
3990                                                        end_node,
3991                                                        tree_view->priv->rubber_band_end_tree,
3992                                                        tree_view->priv->rubber_band_end_node,
3993                                                        FALSE,
3994                                                        TRUE,
3995                                                        FALSE);
3996     }
3997
3998   tree_view->priv->rubber_band_end_tree = end_tree;
3999   tree_view->priv->rubber_band_end_node = end_node;
4000 }
4001
4002 static void
4003 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
4004 {
4005   gint x, y;
4006   GdkRectangle old_area;
4007   GdkRectangle new_area;
4008   GdkRectangle common;
4009   GdkRegion *invalid_region;
4010
4011   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4012   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4013   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
4014   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
4015
4016   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
4017
4018   x = MAX (x, 0);
4019   y = MAX (y, 0) + tree_view->priv->dy;
4020
4021   new_area.x = MIN (tree_view->priv->press_start_x, x);
4022   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
4023   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
4024   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
4025
4026   invalid_region = gdk_region_rectangle (&old_area);
4027   gdk_region_union_with_rect (invalid_region, &new_area);
4028
4029   gdk_rectangle_intersect (&old_area, &new_area, &common);
4030   if (common.width > 2 && common.height > 2)
4031     {
4032       GdkRegion *common_region;
4033
4034       /* make sure the border is invalidated */
4035       common.x += 1;
4036       common.y += 1;
4037       common.width -= 2;
4038       common.height -= 2;
4039
4040       common_region = gdk_region_rectangle (&common);
4041
4042       gdk_region_subtract (invalid_region, common_region);
4043       gdk_region_destroy (common_region);
4044     }
4045
4046   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
4047
4048   gdk_region_destroy (invalid_region);
4049
4050   tree_view->priv->rubber_band_x = x;
4051   tree_view->priv->rubber_band_y = y;
4052
4053   gtk_tree_view_update_rubber_band_selection (tree_view);
4054 }
4055
4056 static void
4057 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
4058                                 GdkRectangle *area)
4059 {
4060   cairo_t *cr;
4061   GdkRectangle rect;
4062   GdkRectangle rubber_rect;
4063
4064   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4065   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4066   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4067   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4068
4069   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4070     return;
4071
4072   cr = gdk_cairo_create (tree_view->priv->bin_window);
4073   cairo_set_line_width (cr, 1.0);
4074
4075   cairo_set_source_rgba (cr,
4076                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4077                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4078                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4079                          .25);
4080
4081   gdk_cairo_rectangle (cr, &rect);
4082   cairo_clip (cr);
4083   cairo_paint (cr);
4084
4085   cairo_set_source_rgb (cr,
4086                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4087                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4088                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4089
4090   cairo_rectangle (cr,
4091                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4092                    rubber_rect.width - 1, rubber_rect.height - 1);
4093   cairo_stroke (cr);
4094
4095   cairo_destroy (cr);
4096 }
4097
4098 static gboolean
4099 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4100                                  GdkEventMotion *event)
4101 {
4102   GtkTreeView *tree_view;
4103   GtkRBTree *tree;
4104   GtkRBNode *node;
4105   gint new_y;
4106
4107   tree_view = (GtkTreeView *) widget;
4108
4109   if (tree_view->priv->tree == NULL)
4110     return FALSE;
4111
4112   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4113     {
4114       gtk_grab_add (GTK_WIDGET (tree_view));
4115       gtk_tree_view_update_rubber_band (tree_view);
4116
4117       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4118     }
4119   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4120     {
4121       gtk_tree_view_update_rubber_band (tree_view);
4122
4123       add_scroll_timeout (tree_view);
4124     }
4125
4126   /* only check for an initiated drag when a button is pressed */
4127   if (tree_view->priv->pressed_button >= 0
4128       && !tree_view->priv->rubber_band_status)
4129     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4130
4131   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4132   if (new_y < 0)
4133     new_y = 0;
4134
4135   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4136
4137   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4138   if ((tree_view->priv->button_pressed_node != NULL) &&
4139       (tree_view->priv->button_pressed_node != node))
4140     node = NULL;
4141
4142   tree_view->priv->event_last_x = event->x;
4143   tree_view->priv->event_last_y = event->y;
4144
4145   prelight_or_select (tree_view, tree, node, event->x, event->y);
4146
4147   return TRUE;
4148 }
4149
4150 static gboolean
4151 gtk_tree_view_motion (GtkWidget      *widget,
4152                       GdkEventMotion *event)
4153 {
4154   GtkTreeView *tree_view;
4155
4156   tree_view = (GtkTreeView *) widget;
4157
4158   /* Resizing a column */
4159   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4160     return gtk_tree_view_motion_resize_column (widget, event);
4161
4162   /* Drag column */
4163   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4164     return gtk_tree_view_motion_drag_column (widget, event);
4165
4166   /* Sanity check it */
4167   if (event->window == tree_view->priv->bin_window)
4168     return gtk_tree_view_motion_bin_window (widget, event);
4169
4170   return FALSE;
4171 }
4172
4173 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4174  * the tree is empty.
4175  */
4176 static void
4177 invalidate_empty_focus (GtkTreeView *tree_view)
4178 {
4179   GdkRectangle area;
4180
4181   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4182     return;
4183
4184   area.x = 0;
4185   area.y = 0;
4186   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4187   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4188 }
4189
4190 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4191  * is empty.
4192  */
4193 static void
4194 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4195 {
4196   gint w, h;
4197
4198   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4199     return;
4200
4201   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4202
4203   w -= 2;
4204   h -= 2;
4205
4206   if (w > 0 && h > 0)
4207     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4208                      tree_view->priv->bin_window,
4209                      GTK_WIDGET_STATE (tree_view),
4210                      clip_area,
4211                      GTK_WIDGET (tree_view),
4212                      NULL,
4213                      1, 1, w, h);
4214 }
4215
4216 static void
4217 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4218                                GdkEventExpose *event,
4219                                gint            n_visible_columns)
4220 {
4221   GList *list = tree_view->priv->columns;
4222   gint i = 0;
4223   gint current_x = 0;
4224
4225   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4226       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4227     return;
4228
4229   /* Only draw the lines for visible rows and columns */
4230   for (list = tree_view->priv->columns; list; list = list->next, i++)
4231     {
4232       GtkTreeViewColumn *column = list->data;
4233
4234       /* We don't want a line for the last column */
4235       if (i == n_visible_columns - 1)
4236         break;
4237
4238       if (! column->visible)
4239         continue;
4240
4241       current_x += column->width;
4242
4243       gdk_draw_line (event->window,
4244                      tree_view->priv->grid_line_gc,
4245                      current_x - 1, 0,
4246                      current_x - 1, tree_view->priv->height);
4247     }
4248 }
4249
4250 /* Warning: Very scary function.
4251  * Modify at your own risk
4252  *
4253  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4254  * FIXME: It's not...
4255  */
4256 static gboolean
4257 gtk_tree_view_bin_expose (GtkWidget      *widget,
4258                           GdkEventExpose *event)
4259 {
4260   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4261   GtkTreePath *path;
4262   GtkRBTree *tree;
4263   GList *list;
4264   GtkRBNode *node;
4265   GtkRBNode *cursor = NULL;
4266   GtkRBTree *cursor_tree = NULL;
4267   GtkRBNode *drag_highlight = NULL;
4268   GtkRBTree *drag_highlight_tree = NULL;
4269   GtkTreeIter iter;
4270   gint new_y;
4271   gint y_offset, cell_offset;
4272   gint max_height;
4273   gint depth;
4274   GdkRectangle background_area;
4275   GdkRectangle cell_area;
4276   guint flags;
4277   gint highlight_x;
4278   gint expander_cell_width;
4279   gint bin_window_width;
4280   gint bin_window_height;
4281   GtkTreePath *cursor_path;
4282   GtkTreePath *drag_dest_path;
4283   GList *first_column, *last_column;
4284   gint vertical_separator;
4285   gint horizontal_separator;
4286   gint focus_line_width;
4287   gboolean allow_rules;
4288   gboolean has_special_cell;
4289   gboolean rtl;
4290   gint n_visible_columns;
4291   gint pointer_x, pointer_y;
4292   gint grid_line_width;
4293   gboolean got_pointer = FALSE;
4294   gboolean row_ending_details;
4295   gboolean draw_vgrid_lines, draw_hgrid_lines;
4296
4297   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4298
4299   gtk_widget_style_get (widget,
4300                         "horizontal-separator", &horizontal_separator,
4301                         "vertical-separator", &vertical_separator,
4302                         "allow-rules", &allow_rules,
4303                         "focus-line-width", &focus_line_width,
4304                         "row-ending-details", &row_ending_details,
4305                         NULL);
4306
4307   if (tree_view->priv->tree == NULL)
4308     {
4309       draw_empty_focus (tree_view, &event->area);
4310       return TRUE;
4311     }
4312
4313   /* clip event->area to the visible area */
4314   if (event->area.height < 0)
4315     return TRUE;
4316
4317   validate_visible_area (tree_view);
4318
4319   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4320
4321   if (new_y < 0)
4322     new_y = 0;
4323   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4324   gdk_drawable_get_size (tree_view->priv->bin_window,
4325                          &bin_window_width, &bin_window_height);
4326
4327   if (tree_view->priv->height < bin_window_height)
4328     {
4329       gtk_paint_flat_box (widget->style,
4330                           event->window,
4331                           widget->state,
4332                           GTK_SHADOW_NONE,
4333                           &event->area,
4334                           widget,
4335                           "cell_even",
4336                           0, tree_view->priv->height,
4337                           bin_window_width,
4338                           bin_window_height - tree_view->priv->height);
4339     }
4340
4341   if (node == NULL)
4342     return TRUE;
4343
4344   /* find the path for the node */
4345   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4346                                    tree,
4347                                    node);
4348   gtk_tree_model_get_iter (tree_view->priv->model,
4349                            &iter,
4350                            path);
4351   depth = gtk_tree_path_get_depth (path);
4352   gtk_tree_path_free (path);
4353
4354   cursor_path = NULL;
4355   drag_dest_path = NULL;
4356
4357   if (tree_view->priv->cursor)
4358     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4359
4360   if (cursor_path)
4361     _gtk_tree_view_find_node (tree_view, cursor_path,
4362                               &cursor_tree, &cursor);
4363
4364   if (tree_view->priv->drag_dest_row)
4365     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4366
4367   if (drag_dest_path)
4368     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4369                               &drag_highlight_tree, &drag_highlight);
4370
4371   draw_vgrid_lines =
4372     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4373     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4374   draw_hgrid_lines =
4375     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4376     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4377
4378   if (draw_vgrid_lines || draw_hgrid_lines)
4379     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4380
4381   n_visible_columns = 0;
4382   for (list = tree_view->priv->columns; list; list = list->next)
4383     {
4384       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4385         continue;
4386       n_visible_columns ++;
4387     }
4388
4389   /* Find the last column */
4390   for (last_column = g_list_last (tree_view->priv->columns);
4391        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4392        last_column = last_column->prev)
4393     ;
4394
4395   /* and the first */
4396   for (first_column = g_list_first (tree_view->priv->columns);
4397        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4398        first_column = first_column->next)
4399     ;
4400
4401   /* Actually process the expose event.  To do this, we want to
4402    * start at the first node of the event, and walk the tree in
4403    * order, drawing each successive node.
4404    */
4405
4406   do
4407     {
4408       gboolean parity;
4409       gboolean is_separator = FALSE;
4410       gboolean is_first = FALSE;
4411       gboolean is_last = FALSE;
4412
4413       is_separator = row_is_separator (tree_view, &iter, NULL);
4414
4415       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4416
4417       cell_offset = 0;
4418       highlight_x = 0; /* should match x coord of first cell */
4419       expander_cell_width = 0;
4420
4421       background_area.y = y_offset + event->area.y;
4422       background_area.height = max_height;
4423
4424       flags = 0;
4425
4426       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4427         flags |= GTK_CELL_RENDERER_PRELIT;
4428
4429       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4430         flags |= GTK_CELL_RENDERER_SELECTED;
4431
4432       parity = _gtk_rbtree_node_find_parity (tree, node);
4433
4434       /* we *need* to set cell data on all cells before the call
4435        * to _has_special_cell, else _has_special_cell() does not
4436        * return a correct value.
4437        */
4438       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4439            list;
4440            list = (rtl ? list->prev : list->next))
4441         {
4442           GtkTreeViewColumn *column = list->data;
4443           gtk_tree_view_column_cell_set_cell_data (column,
4444                                                    tree_view->priv->model,
4445                                                    &iter,
4446                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4447                                                    node->children?TRUE:FALSE);
4448         }
4449
4450       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4451
4452       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4453            list;
4454            list = (rtl ? list->prev : list->next))
4455         {
4456           GtkTreeViewColumn *column = list->data;
4457           const gchar *detail = NULL;
4458           GtkStateType state;
4459
4460           if (!column->visible)
4461             continue;
4462
4463           if (cell_offset > event->area.x + event->area.width ||
4464               cell_offset + column->width < event->area.x)
4465             {
4466               cell_offset += column->width;
4467               continue;
4468             }
4469
4470           if (column->show_sort_indicator)
4471             flags |= GTK_CELL_RENDERER_SORTED;
4472           else
4473             flags &= ~GTK_CELL_RENDERER_SORTED;
4474
4475           if (cursor == node)
4476             flags |= GTK_CELL_RENDERER_FOCUSED;
4477           else
4478             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4479
4480           background_area.x = cell_offset;
4481           background_area.width = column->width;
4482
4483           cell_area = background_area;
4484           cell_area.y += vertical_separator / 2;
4485           cell_area.x += horizontal_separator / 2;
4486           cell_area.height -= vertical_separator;
4487           cell_area.width -= horizontal_separator;
4488
4489           if (draw_vgrid_lines)
4490             {
4491               if (list == first_column)
4492                 {
4493                   cell_area.width -= grid_line_width / 2;
4494                 }
4495               else if (list == last_column)
4496                 {
4497                   cell_area.x += grid_line_width / 2;
4498                   cell_area.width -= grid_line_width / 2;
4499                 }
4500               else
4501                 {
4502                   cell_area.x += grid_line_width / 2;
4503                   cell_area.width -= grid_line_width;
4504                 }
4505             }
4506
4507           if (draw_hgrid_lines)
4508             {
4509               cell_area.y += grid_line_width / 2;
4510               cell_area.height -= grid_line_width;
4511             }
4512
4513           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4514             {
4515               cell_offset += column->width;
4516               continue;
4517             }
4518
4519           gtk_tree_view_column_cell_set_cell_data (column,
4520                                                    tree_view->priv->model,
4521                                                    &iter,
4522                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4523                                                    node->children?TRUE:FALSE);
4524
4525           /* Select the detail for drawing the cell.  relevant
4526            * factors are parity, sortedness, and whether to
4527            * display rules.
4528            */
4529           if (allow_rules && tree_view->priv->has_rules)
4530             {
4531               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4532                   n_visible_columns >= 3)
4533                 {
4534                   if (parity)
4535                     detail = "cell_odd_ruled_sorted";
4536                   else
4537                     detail = "cell_even_ruled_sorted";
4538                 }
4539               else
4540                 {
4541                   if (parity)
4542                     detail = "cell_odd_ruled";
4543                   else
4544                     detail = "cell_even_ruled";
4545                 }
4546             }
4547           else
4548             {
4549               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4550                   n_visible_columns >= 3)
4551                 {
4552                   if (parity)
4553                     detail = "cell_odd_sorted";
4554                   else
4555                     detail = "cell_even_sorted";
4556                 }
4557               else
4558                 {
4559                   if (parity)
4560                     detail = "cell_odd";
4561                   else
4562                     detail = "cell_even";
4563                 }
4564             }
4565
4566           g_assert (detail);
4567
4568           if (widget->state == GTK_STATE_INSENSITIVE)
4569             state = GTK_STATE_INSENSITIVE;
4570           else if (flags & GTK_CELL_RENDERER_SELECTED)
4571             state = GTK_STATE_SELECTED;
4572           else
4573             state = GTK_STATE_NORMAL;
4574
4575           /* Draw background */
4576           if (row_ending_details)
4577             {
4578               char new_detail[128];
4579
4580               is_first = (rtl ? !list->next : !list->prev);
4581               is_last = (rtl ? !list->prev : !list->next);
4582
4583               /* (I don't like the snprintfs either, but couldn't find a
4584                * less messy way).
4585                */
4586               if (is_first && is_last)
4587                 g_snprintf (new_detail, 127, "%s", detail);
4588               else if (is_first)
4589                 g_snprintf (new_detail, 127, "%s_start", detail);
4590               else if (is_last)
4591                 g_snprintf (new_detail, 127, "%s_end", detail);
4592               else
4593                 g_snprintf (new_detail, 128, "%s_middle", detail);
4594
4595               gtk_paint_flat_box (widget->style,
4596                                   event->window,
4597                                   state,
4598                                   GTK_SHADOW_NONE,
4599                                   &event->area,
4600                                   widget,
4601                                   new_detail,
4602                                   background_area.x,
4603                                   background_area.y,
4604                                   background_area.width,
4605                                   background_area.height);
4606             }
4607           else
4608             {
4609               gtk_paint_flat_box (widget->style,
4610                                   event->window,
4611                                   state,
4612                                   GTK_SHADOW_NONE,
4613                                   &event->area,
4614                                   widget,
4615                                   detail,
4616                                   background_area.x,
4617                                   background_area.y,
4618                                   background_area.width,
4619                                   background_area.height);
4620             }
4621
4622           if (draw_hgrid_lines)
4623             {
4624               if (background_area.y > 0)
4625                 gdk_draw_line (event->window,
4626                                tree_view->priv->grid_line_gc,
4627                                background_area.x, background_area.y,
4628                                background_area.x + background_area.width,
4629                                background_area.y);
4630
4631               if (y_offset + max_height >= event->area.height)
4632                 gdk_draw_line (event->window,
4633                                tree_view->priv->grid_line_gc,
4634                                background_area.x, background_area.y + max_height,
4635                                background_area.x + background_area.width,
4636                                background_area.y + max_height);
4637             }
4638
4639           if (gtk_tree_view_is_expander_column (tree_view, column))
4640             {
4641               if (!rtl)
4642                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4643               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4644
4645               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4646                 {
4647                   if (!rtl)
4648                     cell_area.x += depth * tree_view->priv->expander_size;
4649                   cell_area.width -= depth * tree_view->priv->expander_size;
4650                 }
4651
4652               /* If we have an expander column, the highlight underline
4653                * starts with that column, so that it indicates which
4654                * level of the tree we're dropping at.
4655                */
4656               highlight_x = cell_area.x;
4657               expander_cell_width = cell_area.width;
4658
4659               if (is_separator)
4660                 gtk_paint_hline (widget->style,
4661                                  event->window,
4662                                  state,
4663                                  &cell_area,
4664                                  widget,
4665                                  NULL,
4666                                  cell_area.x,
4667                                  cell_area.x + cell_area.width,
4668                                  cell_area.y + cell_area.height / 2);
4669               else
4670                 _gtk_tree_view_column_cell_render (column,
4671                                                    event->window,
4672                                                    &background_area,
4673                                                    &cell_area,
4674                                                    &event->area,
4675                                                    flags);
4676               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4677                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4678                 {
4679                   if (!got_pointer)
4680                     {
4681                       gdk_window_get_pointer (tree_view->priv->bin_window,
4682                                               &pointer_x, &pointer_y, NULL);
4683                       got_pointer = TRUE;
4684                     }
4685
4686                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4687                                             tree,
4688                                             node,
4689                                             pointer_x, pointer_y);
4690                 }
4691             }
4692           else
4693             {
4694               if (is_separator)
4695                 gtk_paint_hline (widget->style,
4696                                  event->window,
4697                                  state,
4698                                  &cell_area,
4699                                  widget,
4700                                  NULL,
4701                                  cell_area.x,
4702                                  cell_area.x + cell_area.width,
4703                                  cell_area.y + cell_area.height / 2);
4704               else
4705                 _gtk_tree_view_column_cell_render (column,
4706                                                    event->window,
4707                                                    &background_area,
4708                                                    &cell_area,
4709                                                    &event->area,
4710                                                    flags);
4711             }
4712
4713           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4714               tree_view->priv->tree_lines_enabled)
4715             {
4716               gint x = background_area.x;
4717               gint mult = rtl ? -1 : 1;
4718               gint y0 = background_area.y;
4719               gint y1 = background_area.y + background_area.height/2;
4720               gint y2 = background_area.y + background_area.height;
4721
4722               if (rtl)
4723                 x += background_area.width - 1;
4724
4725               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4726                   && depth > 1)
4727                 {
4728                   gdk_draw_line (event->window,
4729                                  tree_view->priv->tree_line_gc,
4730                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4731                                  y1,
4732                                  x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4733                                  y1);
4734                 }
4735               else if (depth > 1)
4736                 {
4737                   gdk_draw_line (event->window,
4738                                  tree_view->priv->tree_line_gc,
4739                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4740                                  y1,
4741                                  x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4742                                  y1);
4743                 }
4744
4745               if (depth > 1)
4746                 {
4747                   gint i;
4748                   GtkRBNode *tmp_node;
4749                   GtkRBTree *tmp_tree;
4750
4751                   if (!_gtk_rbtree_next (tree, node))
4752                     gdk_draw_line (event->window,
4753                                    tree_view->priv->tree_line_gc,
4754                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4755                                    y0,
4756                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4757                                    y1);
4758                   else
4759                     gdk_draw_line (event->window,
4760                                    tree_view->priv->tree_line_gc,
4761                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4762                                    y0,
4763                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4764                                    y2);
4765
4766                   tmp_node = tree->parent_node;
4767                   tmp_tree = tree->parent_tree;
4768
4769                   for (i = depth - 2; i > 0; i--)
4770                     {
4771                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4772                         gdk_draw_line (event->window,
4773                                        tree_view->priv->tree_line_gc,
4774                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4775                                        y0,
4776                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4777                                        y2);
4778
4779                       tmp_node = tmp_tree->parent_node;
4780                       tmp_tree = tmp_tree->parent_tree;
4781                     }
4782                 }
4783             }
4784
4785           if (node == cursor && has_special_cell &&
4786               ((column == tree_view->priv->focus_column &&
4787                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4788                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4789                (column == tree_view->priv->edited_column)))
4790             {
4791               _gtk_tree_view_column_cell_draw_focus (column,
4792                                                      event->window,
4793                                                      &background_area,
4794                                                      &cell_area,
4795                                                      &event->area,
4796                                                      flags);
4797             }
4798
4799           cell_offset += column->width;
4800         }
4801
4802       if (node == drag_highlight)
4803         {
4804           /* Draw indicator for the drop
4805            */
4806           gint highlight_y = -1;
4807           GtkRBTree *tree = NULL;
4808           GtkRBNode *node = NULL;
4809           gint width;
4810
4811           switch (tree_view->priv->drag_dest_pos)
4812             {
4813             case GTK_TREE_VIEW_DROP_BEFORE:
4814               highlight_y = background_area.y - 1;
4815               if (highlight_y < 0)
4816                       highlight_y = 0;
4817               break;
4818
4819             case GTK_TREE_VIEW_DROP_AFTER:
4820               highlight_y = background_area.y + background_area.height - 1;
4821               break;
4822
4823             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4824             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4825               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4826
4827               if (tree == NULL)
4828                 break;
4829               gdk_drawable_get_size (tree_view->priv->bin_window,
4830                                      &width, NULL);
4831
4832               if (row_ending_details)
4833                 gtk_paint_focus (widget->style,
4834                                  tree_view->priv->bin_window,
4835                                  GTK_WIDGET_STATE (widget),
4836                                  &event->area,
4837                                  widget,
4838                                  (is_first
4839                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4840                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4841                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4842                                  - focus_line_width / 2,
4843                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4844                                - focus_line_width + 1);
4845               else
4846                 gtk_paint_focus (widget->style,
4847                                  tree_view->priv->bin_window,
4848                                  GTK_WIDGET_STATE (widget),
4849                                  &event->area,
4850                                  widget,
4851                                  "treeview-drop-indicator",
4852                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4853                                  - focus_line_width / 2,
4854                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4855                                  - focus_line_width + 1);
4856               break;
4857             }
4858
4859           if (highlight_y >= 0)
4860             {
4861               gdk_draw_line (event->window,
4862                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4863                              rtl ? highlight_x + expander_cell_width : highlight_x,
4864                              highlight_y,
4865                              rtl ? 0 : bin_window_width,
4866                              highlight_y);
4867             }
4868         }
4869
4870       /* draw the big row-spanning focus rectangle, if needed */
4871       if (!has_special_cell && node == cursor &&
4872           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4873           GTK_WIDGET_HAS_FOCUS (widget))
4874         {
4875           gint tmp_y, tmp_height;
4876           gint width;
4877           GtkStateType focus_rect_state;
4878
4879           focus_rect_state =
4880             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4881             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4882              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4883               GTK_STATE_NORMAL));
4884
4885           gdk_drawable_get_size (tree_view->priv->bin_window,
4886                                  &width, NULL);
4887
4888           if (draw_hgrid_lines)
4889             {
4890               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4891               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4892             }
4893           else
4894             {
4895               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4896               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4897             }
4898
4899           if (row_ending_details)
4900             gtk_paint_focus (widget->style,
4901                              tree_view->priv->bin_window,
4902                              focus_rect_state,
4903                              &event->area,
4904                              widget,
4905                              (is_first
4906                               ? (is_last ? "treeview" : "treeview-left" )
4907                               : (is_last ? "treeview-right" : "treeview-middle" )),
4908                              0, tmp_y,
4909                              width, tmp_height);
4910           else
4911             gtk_paint_focus (widget->style,
4912                              tree_view->priv->bin_window,
4913                              focus_rect_state,
4914                              &event->area,
4915                              widget,
4916                              "treeview",
4917                              0, tmp_y,
4918                              width, tmp_height);
4919         }
4920
4921       y_offset += max_height;
4922       if (node->children)
4923         {
4924           GtkTreeIter parent = iter;
4925           gboolean has_child;
4926
4927           tree = node->children;
4928           node = tree->root;
4929
4930           g_assert (node != tree->nil);
4931
4932           while (node->left != tree->nil)
4933             node = node->left;
4934           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4935                                                     &iter,
4936                                                     &parent);
4937           depth++;
4938
4939           /* Sanity Check! */
4940           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4941         }
4942       else
4943         {
4944           gboolean done = FALSE;
4945
4946           do
4947             {
4948               node = _gtk_rbtree_next (tree, node);
4949               if (node != NULL)
4950                 {
4951                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4952                   done = TRUE;
4953
4954                   /* Sanity Check! */
4955                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4956                 }
4957               else
4958                 {
4959                   GtkTreeIter parent_iter = iter;
4960                   gboolean has_parent;
4961
4962                   node = tree->parent_node;
4963                   tree = tree->parent_tree;
4964                   if (tree == NULL)
4965                     /* we should go to done to free some memory */
4966                     goto done;
4967                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4968                                                            &iter,
4969                                                            &parent_iter);
4970                   depth--;
4971
4972                   /* Sanity check */
4973                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4974                 }
4975             }
4976           while (!done);
4977         }
4978     }
4979   while (y_offset < event->area.height);
4980
4981 done:
4982   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4983
4984  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4985    {
4986      GdkRectangle *rectangles;
4987      gint n_rectangles;
4988
4989      gdk_region_get_rectangles (event->region,
4990                                 &rectangles,
4991                                 &n_rectangles);
4992
4993      while (n_rectangles--)
4994        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4995
4996      g_free (rectangles);
4997    }
4998
4999   if (cursor_path)
5000     gtk_tree_path_free (cursor_path);
5001
5002   if (drag_dest_path)
5003     gtk_tree_path_free (drag_dest_path);
5004
5005   return FALSE;
5006 }
5007
5008 static gboolean
5009 gtk_tree_view_expose (GtkWidget      *widget,
5010                       GdkEventExpose *event)
5011 {
5012   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5013
5014   if (event->window == tree_view->priv->bin_window)
5015     {
5016       gboolean retval;
5017       GList *tmp_list;
5018
5019       retval = gtk_tree_view_bin_expose (widget, event);
5020
5021       /* We can't just chain up to Container::expose as it will try to send the
5022        * event to the headers, so we handle propagating it to our children
5023        * (eg. widgets being edited) ourselves.
5024        */
5025       tmp_list = tree_view->priv->children;
5026       while (tmp_list)
5027         {
5028           GtkTreeViewChild *child = tmp_list->data;
5029           tmp_list = tmp_list->next;
5030
5031           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
5032         }
5033
5034       return retval;
5035     }
5036
5037   else if (event->window == tree_view->priv->header_window)
5038     {
5039       GList *list;
5040
5041       for (list = tree_view->priv->columns; list != NULL; list = list->next)
5042         {
5043           GtkTreeViewColumn *column = list->data;
5044
5045           if (column == tree_view->priv->drag_column)
5046             continue;
5047
5048           if (column->visible)
5049             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5050                                             column->button,
5051                                             event);
5052         }
5053     }
5054   else if (event->window == tree_view->priv->drag_window)
5055     {
5056       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
5057                                       tree_view->priv->drag_column->button,
5058                                       event);
5059     }
5060   return TRUE;
5061 }
5062
5063 enum
5064 {
5065   DROP_HOME,
5066   DROP_RIGHT,
5067   DROP_LEFT,
5068   DROP_END
5069 };
5070
5071 /* returns 0x1 when no column has been found -- yes it's hackish */
5072 static GtkTreeViewColumn *
5073 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5074                                GtkTreeViewColumn *column,
5075                                gint               drop_position)
5076 {
5077   GtkTreeViewColumn *left_column = NULL;
5078   GtkTreeViewColumn *cur_column = NULL;
5079   GList *tmp_list;
5080
5081   if (!column->reorderable)
5082     return (GtkTreeViewColumn *)0x1;
5083
5084   switch (drop_position)
5085     {
5086       case DROP_HOME:
5087         /* find first column where we can drop */
5088         tmp_list = tree_view->priv->columns;
5089         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5090           return (GtkTreeViewColumn *)0x1;
5091
5092         while (tmp_list)
5093           {
5094             g_assert (tmp_list);
5095
5096             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5097             tmp_list = tmp_list->next;
5098
5099             if (left_column && left_column->visible == FALSE)
5100               continue;
5101
5102             if (!tree_view->priv->column_drop_func)
5103               return left_column;
5104
5105             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5106               {
5107                 left_column = cur_column;
5108                 continue;
5109               }
5110
5111             return left_column;
5112           }
5113
5114         if (!tree_view->priv->column_drop_func)
5115           return left_column;
5116
5117         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5118           return left_column;
5119         else
5120           return (GtkTreeViewColumn *)0x1;
5121         break;
5122
5123       case DROP_RIGHT:
5124         /* find first column after column where we can drop */
5125         tmp_list = tree_view->priv->columns;
5126
5127         for (; tmp_list; tmp_list = tmp_list->next)
5128           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5129             break;
5130
5131         if (!tmp_list || !tmp_list->next)
5132           return (GtkTreeViewColumn *)0x1;
5133
5134         tmp_list = tmp_list->next;
5135         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5136         tmp_list = tmp_list->next;
5137
5138         while (tmp_list)
5139           {
5140             g_assert (tmp_list);
5141
5142             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5143             tmp_list = tmp_list->next;
5144
5145             if (left_column && left_column->visible == FALSE)
5146               {
5147                 left_column = cur_column;
5148                 if (tmp_list)
5149                   tmp_list = tmp_list->next;
5150                 continue;
5151               }
5152
5153             if (!tree_view->priv->column_drop_func)
5154               return left_column;
5155
5156             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5157               {
5158                 left_column = cur_column;
5159                 continue;
5160               }
5161
5162             return left_column;
5163           }
5164
5165         if (!tree_view->priv->column_drop_func)
5166           return left_column;
5167
5168         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5169           return left_column;
5170         else
5171           return (GtkTreeViewColumn *)0x1;
5172         break;
5173
5174       case DROP_LEFT:
5175         /* find first column before column where we can drop */
5176         tmp_list = tree_view->priv->columns;
5177
5178         for (; tmp_list; tmp_list = tmp_list->next)
5179           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5180             break;
5181
5182         if (!tmp_list || !tmp_list->prev)
5183           return (GtkTreeViewColumn *)0x1;
5184
5185         tmp_list = tmp_list->prev;
5186         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5187         tmp_list = tmp_list->prev;
5188
5189         while (tmp_list)
5190           {
5191             g_assert (tmp_list);
5192
5193             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5194
5195             if (left_column && !left_column->visible)
5196               {
5197                 /*if (!tmp_list->prev)
5198                   return (GtkTreeViewColumn *)0x1;
5199                   */
5200 /*
5201                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5202                 tmp_list = tmp_list->prev->prev;
5203                 continue;*/
5204
5205                 cur_column = left_column;
5206                 if (tmp_list)
5207                   tmp_list = tmp_list->prev;
5208                 continue;
5209               }
5210
5211             if (!tree_view->priv->column_drop_func)
5212               return left_column;
5213
5214             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5215               return left_column;
5216
5217             cur_column = left_column;
5218             tmp_list = tmp_list->prev;
5219           }
5220
5221         if (!tree_view->priv->column_drop_func)
5222           return NULL;
5223
5224         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5225           return NULL;
5226         else
5227           return (GtkTreeViewColumn *)0x1;
5228         break;
5229
5230       case DROP_END:
5231         /* same as DROP_HOME case, but doing it backwards */
5232         tmp_list = g_list_last (tree_view->priv->columns);
5233         cur_column = NULL;
5234
5235         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5236           return (GtkTreeViewColumn *)0x1;
5237
5238         while (tmp_list)
5239           {
5240             g_assert (tmp_list);
5241
5242             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5243
5244             if (left_column && !left_column->visible)
5245               {
5246                 cur_column = left_column;
5247                 tmp_list = tmp_list->prev;
5248               }
5249
5250             if (!tree_view->priv->column_drop_func)
5251               return left_column;
5252
5253             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5254               return left_column;
5255
5256             cur_column = left_column;
5257             tmp_list = tmp_list->prev;
5258           }
5259
5260         if (!tree_view->priv->column_drop_func)
5261           return NULL;
5262
5263         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5264           return NULL;
5265         else
5266           return (GtkTreeViewColumn *)0x1;
5267         break;
5268     }
5269
5270   return (GtkTreeViewColumn *)0x1;
5271 }
5272
5273 static gboolean
5274 gtk_tree_view_key_press (GtkWidget   *widget,
5275                          GdkEventKey *event)
5276 {
5277   GtkTreeView *tree_view = (GtkTreeView *) widget;
5278
5279   if (tree_view->priv->rubber_band_status)
5280     {
5281       if (event->keyval == GDK_Escape)
5282         gtk_tree_view_stop_rubber_band (tree_view);
5283
5284       return TRUE;
5285     }
5286
5287   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5288     {
5289       if (event->keyval == GDK_Escape)
5290         {
5291           tree_view->priv->cur_reorder = NULL;
5292           gtk_tree_view_button_release_drag_column (widget, NULL);
5293         }
5294       return TRUE;
5295     }
5296
5297   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5298     {
5299       GList *focus_column;
5300       gboolean rtl;
5301
5302       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5303
5304       for (focus_column = tree_view->priv->columns;
5305            focus_column;
5306            focus_column = focus_column->next)
5307         {
5308           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5309
5310           if (GTK_WIDGET_HAS_FOCUS (column->button))
5311             break;
5312         }
5313
5314       if (focus_column &&
5315           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5316           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5317            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5318         {
5319           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5320
5321           if (!column->resizable)
5322             {
5323               gtk_widget_error_bell (widget);
5324               return TRUE;
5325             }
5326
5327           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5328               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5329             {
5330               gint old_width = column->resized_width;
5331
5332               column->resized_width = MAX (column->resized_width,
5333                                            column->width);
5334               column->resized_width -= 2;
5335               if (column->resized_width < 0)
5336                 column->resized_width = 0;
5337
5338               if (column->min_width == -1)
5339                 column->resized_width = MAX (column->button->requisition.width,
5340                                              column->resized_width);
5341               else
5342                 column->resized_width = MAX (column->min_width,
5343                                              column->resized_width);
5344
5345               if (column->max_width != -1)
5346                 column->resized_width = MIN (column->resized_width,
5347                                              column->max_width);
5348
5349               column->use_resized_width = TRUE;
5350
5351               if (column->resized_width != old_width)
5352                 gtk_widget_queue_resize (widget);
5353               else
5354                 gtk_widget_error_bell (widget);
5355             }
5356           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5357                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5358             {
5359               gint old_width = column->resized_width;
5360
5361               column->resized_width = MAX (column->resized_width,
5362                                            column->width);
5363               column->resized_width += 2;
5364
5365               if (column->max_width != -1)
5366                 column->resized_width = MIN (column->resized_width,
5367                                              column->max_width);
5368
5369               column->use_resized_width = TRUE;
5370
5371               if (column->resized_width != old_width)
5372                 gtk_widget_queue_resize (widget);
5373               else
5374                 gtk_widget_error_bell (widget);
5375             }
5376
5377           return TRUE;
5378         }
5379
5380       if (focus_column &&
5381           (event->state & GDK_MOD1_MASK) &&
5382           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5383            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5384            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5385            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5386         {
5387           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5388
5389           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5390               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5391             {
5392               GtkTreeViewColumn *col;
5393               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5394               if (col != (GtkTreeViewColumn *)0x1)
5395                 gtk_tree_view_move_column_after (tree_view, column, col);
5396               else
5397                 gtk_widget_error_bell (widget);
5398             }
5399           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5400                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5401             {
5402               GtkTreeViewColumn *col;
5403               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5404               if (col != (GtkTreeViewColumn *)0x1)
5405                 gtk_tree_view_move_column_after (tree_view, column, col);
5406               else
5407                 gtk_widget_error_bell (widget);
5408             }
5409           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5410             {
5411               GtkTreeViewColumn *col;
5412               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5413               if (col != (GtkTreeViewColumn *)0x1)
5414                 gtk_tree_view_move_column_after (tree_view, column, col);
5415               else
5416                 gtk_widget_error_bell (widget);
5417             }
5418           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5419             {
5420               GtkTreeViewColumn *col;
5421               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5422               if (col != (GtkTreeViewColumn *)0x1)
5423                 gtk_tree_view_move_column_after (tree_view, column, col);
5424               else
5425                 gtk_widget_error_bell (widget);
5426             }
5427
5428           return TRUE;
5429         }
5430     }
5431
5432   /* Chain up to the parent class.  It handles the keybindings. */
5433   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5434     return TRUE;
5435
5436   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5437     {
5438       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5439       return FALSE;
5440     }
5441
5442   /* We pass the event to the search_entry.  If its text changes, then we start
5443    * the typeahead find capabilities. */
5444   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5445       && tree_view->priv->enable_search
5446       && !tree_view->priv->search_custom_entry_set)
5447     {
5448       GdkEvent *new_event;
5449       char *old_text;
5450       const char *new_text;
5451       gboolean retval;
5452       GdkScreen *screen;
5453       gboolean text_modified;
5454       gulong popup_menu_id;
5455
5456       gtk_tree_view_ensure_interactive_directory (tree_view);
5457
5458       /* Make a copy of the current text */
5459       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5460       new_event = gdk_event_copy ((GdkEvent *) event);
5461       g_object_unref (((GdkEventKey *) new_event)->window);
5462       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5463       gtk_widget_realize (tree_view->priv->search_window);
5464
5465       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5466                                         "popup-menu", G_CALLBACK (gtk_true),
5467                                         NULL);
5468
5469       /* Move the entry off screen */
5470       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5471       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5472                        gdk_screen_get_width (screen) + 1,
5473                        gdk_screen_get_height (screen) + 1);
5474       gtk_widget_show (tree_view->priv->search_window);
5475
5476       /* Send the event to the window.  If the preedit_changed signal is emitted
5477        * during this event, we will set priv->imcontext_changed  */
5478       tree_view->priv->imcontext_changed = FALSE;
5479       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5480       gdk_event_free (new_event);
5481       gtk_widget_hide (tree_view->priv->search_window);
5482
5483       g_signal_handler_disconnect (tree_view->priv->search_entry,
5484                                    popup_menu_id);
5485
5486       /* We check to make sure that the entry tried to handle the text, and that
5487        * the text has changed.
5488        */
5489       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5490       text_modified = strcmp (old_text, new_text) != 0;
5491       g_free (old_text);
5492       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5493           (retval && text_modified))               /* ...or the text was modified */
5494         {
5495           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5496             {
5497               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5498               return TRUE;
5499             }
5500           else
5501             {
5502               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5503               return FALSE;
5504             }
5505         }
5506     }
5507
5508   return FALSE;
5509 }
5510
5511 static gboolean
5512 gtk_tree_view_key_release (GtkWidget   *widget,
5513                            GdkEventKey *event)
5514 {
5515   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5516
5517   if (tree_view->priv->rubber_band_status)
5518     return TRUE;
5519
5520   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5521 }
5522
5523 /* FIXME Is this function necessary? Can I get an enter_notify event
5524  * w/o either an expose event or a mouse motion event?
5525  */
5526 static gboolean
5527 gtk_tree_view_enter_notify (GtkWidget        *widget,
5528                             GdkEventCrossing *event)
5529 {
5530   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5531   GtkRBTree *tree;
5532   GtkRBNode *node;
5533   gint new_y;
5534
5535   /* Sanity check it */
5536   if (event->window != tree_view->priv->bin_window)
5537     return FALSE;
5538
5539   if (tree_view->priv->tree == NULL)
5540     return FALSE;
5541
5542   if (event->mode == GDK_CROSSING_GRAB ||
5543       event->mode == GDK_CROSSING_GTK_GRAB ||
5544       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5545       event->mode == GDK_CROSSING_STATE_CHANGED)
5546     return TRUE;
5547
5548   /* find the node internally */
5549   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5550   if (new_y < 0)
5551     new_y = 0;
5552   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5553
5554   tree_view->priv->event_last_x = event->x;
5555   tree_view->priv->event_last_y = event->y;
5556
5557   if ((tree_view->priv->button_pressed_node == NULL) ||
5558       (tree_view->priv->button_pressed_node == node))
5559     prelight_or_select (tree_view, tree, node, event->x, event->y);
5560
5561   return TRUE;
5562 }
5563
5564 static gboolean
5565 gtk_tree_view_leave_notify (GtkWidget        *widget,
5566                             GdkEventCrossing *event)
5567 {
5568   GtkTreeView *tree_view;
5569
5570   if (event->mode == GDK_CROSSING_GRAB)
5571     return TRUE;
5572
5573   tree_view = GTK_TREE_VIEW (widget);
5574
5575   if (tree_view->priv->prelight_node)
5576     _gtk_tree_view_queue_draw_node (tree_view,
5577                                    tree_view->priv->prelight_tree,
5578                                    tree_view->priv->prelight_node,
5579                                    NULL);
5580
5581   tree_view->priv->event_last_x = -10000;
5582   tree_view->priv->event_last_y = -10000;
5583
5584   prelight_or_select (tree_view,
5585                       NULL, NULL,
5586                       -1000, -1000); /* coords not possibly over an arrow */
5587
5588   return TRUE;
5589 }
5590
5591
5592 static gint
5593 gtk_tree_view_focus_out (GtkWidget     *widget,
5594                          GdkEventFocus *event)
5595 {
5596   GtkTreeView *tree_view;
5597
5598   tree_view = GTK_TREE_VIEW (widget);
5599
5600   gtk_widget_queue_draw (widget);
5601
5602   /* destroy interactive search dialog */
5603   if (tree_view->priv->search_window)
5604     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5605
5606   return FALSE;
5607 }
5608
5609
5610 /* Incremental Reflow
5611  */
5612
5613 static void
5614 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5615                                  GtkRBTree   *tree,
5616                                  GtkRBNode   *node)
5617 {
5618   gint y;
5619
5620   y = _gtk_rbtree_node_find_offset (tree, node)
5621     - tree_view->priv->vadjustment->value
5622     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5623
5624   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5625                               0, y,
5626                               GTK_WIDGET (tree_view)->allocation.width,
5627                               GTK_RBNODE_GET_HEIGHT (node));
5628 }
5629
5630 static gboolean
5631 node_is_visible (GtkTreeView *tree_view,
5632                  GtkRBTree   *tree,
5633                  GtkRBNode   *node)
5634 {
5635   int y;
5636   int height;
5637
5638   y = _gtk_rbtree_node_find_offset (tree, node);
5639   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5640
5641   if (y >= tree_view->priv->vadjustment->value &&
5642       y + height <= (tree_view->priv->vadjustment->value
5643                      + tree_view->priv->vadjustment->page_size))
5644     return TRUE;
5645
5646   return FALSE;
5647 }
5648
5649 /* Returns TRUE if it updated the size
5650  */
5651 static gboolean
5652 validate_row (GtkTreeView *tree_view,
5653               GtkRBTree   *tree,
5654               GtkRBNode   *node,
5655               GtkTreeIter *iter,
5656               GtkTreePath *path)
5657 {
5658   GtkTreeViewColumn *column;
5659   GList *list, *first_column, *last_column;
5660   gint height = 0;
5661   gint horizontal_separator;
5662   gint vertical_separator;
5663   gint focus_line_width;
5664   gint depth = gtk_tree_path_get_depth (path);
5665   gboolean retval = FALSE;
5666   gboolean is_separator = FALSE;
5667   gboolean draw_vgrid_lines, draw_hgrid_lines;
5668   gint focus_pad;
5669   gint grid_line_width;
5670   gboolean wide_separators;
5671   gint separator_height;
5672
5673   /* double check the row needs validating */
5674   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5675       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5676     return FALSE;
5677
5678   is_separator = row_is_separator (tree_view, iter, NULL);
5679
5680   gtk_widget_style_get (GTK_WIDGET (tree_view),
5681                         "focus-padding", &focus_pad,
5682                         "focus-line-width", &focus_line_width,
5683                         "horizontal-separator", &horizontal_separator,
5684                         "vertical-separator", &vertical_separator,
5685                         "grid-line-width", &grid_line_width,
5686                         "wide-separators",  &wide_separators,
5687                         "separator-height", &separator_height,
5688                         NULL);
5689
5690   draw_vgrid_lines =
5691     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5692     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5693   draw_hgrid_lines =
5694     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5695     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5696
5697   for (last_column = g_list_last (tree_view->priv->columns);
5698        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5699        last_column = last_column->prev)
5700     ;
5701
5702   for (first_column = g_list_first (tree_view->priv->columns);
5703        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5704        first_column = first_column->next)
5705     ;
5706
5707   for (list = tree_view->priv->columns; list; list = list->next)
5708     {
5709       gint tmp_width;
5710       gint tmp_height;
5711
5712       column = list->data;
5713
5714       if (! column->visible)
5715         continue;
5716
5717       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5718         continue;
5719
5720       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5721                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5722                                                node->children?TRUE:FALSE);
5723       gtk_tree_view_column_cell_get_size (column,
5724                                           NULL, NULL, NULL,
5725                                           &tmp_width, &tmp_height);
5726
5727       if (!is_separator)
5728         {
5729           tmp_height += vertical_separator;
5730           height = MAX (height, tmp_height);
5731           height = MAX (height, tree_view->priv->expander_size);
5732         }
5733       else
5734         {
5735           if (wide_separators)
5736             height = separator_height + 2 * focus_pad;
5737           else
5738             height = 2 + 2 * focus_pad;
5739         }
5740
5741       if (gtk_tree_view_is_expander_column (tree_view, column))
5742         {
5743           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5744
5745           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5746             tmp_width += depth * tree_view->priv->expander_size;
5747         }
5748       else
5749         tmp_width = tmp_width + horizontal_separator;
5750
5751       if (draw_vgrid_lines)
5752         {
5753           if (list->data == first_column || list->data == last_column)
5754             tmp_width += grid_line_width / 2.0;
5755           else
5756             tmp_width += grid_line_width;
5757         }
5758
5759       if (tmp_width > column->requested_width)
5760         {
5761           retval = TRUE;
5762           column->requested_width = tmp_width;
5763         }
5764     }
5765
5766   if (draw_hgrid_lines)
5767     height += grid_line_width;
5768
5769   if (height != GTK_RBNODE_GET_HEIGHT (node))
5770     {
5771       retval = TRUE;
5772       _gtk_rbtree_node_set_height (tree, node, height);
5773     }
5774   _gtk_rbtree_node_mark_valid (tree, node);
5775   tree_view->priv->post_validation_flag = TRUE;
5776
5777   return retval;
5778 }
5779
5780
5781 static void
5782 validate_visible_area (GtkTreeView *tree_view)
5783 {
5784   GtkTreePath *path = NULL;
5785   GtkTreePath *above_path = NULL;
5786   GtkTreeIter iter;
5787   GtkRBTree *tree = NULL;
5788   GtkRBNode *node = NULL;
5789   gboolean need_redraw = FALSE;
5790   gboolean size_changed = FALSE;
5791   gint total_height;
5792   gint area_above = 0;
5793   gint area_below = 0;
5794
5795   if (tree_view->priv->tree == NULL)
5796     return;
5797
5798   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5799       tree_view->priv->scroll_to_path == NULL)
5800     return;
5801
5802   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5803
5804   if (total_height == 0)
5805     return;
5806
5807   /* First, we check to see if we need to scroll anywhere
5808    */
5809   if (tree_view->priv->scroll_to_path)
5810     {
5811       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5812       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5813         {
5814           /* we are going to scroll, and will update dy */
5815           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5816           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5817               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5818             {
5819               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5820               if (validate_row (tree_view, tree, node, &iter, path))
5821                 size_changed = TRUE;
5822             }
5823
5824           if (tree_view->priv->scroll_to_use_align)
5825             {
5826               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5827               area_above = (total_height - height) *
5828                 tree_view->priv->scroll_to_row_align;
5829               area_below = total_height - area_above - height;
5830               area_above = MAX (area_above, 0);
5831               area_below = MAX (area_below, 0);
5832             }
5833           else
5834             {
5835               /* two cases:
5836                * 1) row not visible
5837                * 2) row visible
5838                */
5839               gint dy;
5840               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5841
5842               dy = _gtk_rbtree_node_find_offset (tree, node);
5843
5844               if (dy >= tree_view->priv->vadjustment->value &&
5845                   dy + height <= (tree_view->priv->vadjustment->value
5846                                   + tree_view->priv->vadjustment->page_size))
5847                 {
5848                   /* row visible: keep the row at the same position */
5849                   area_above = dy - tree_view->priv->vadjustment->value;
5850                   area_below = (tree_view->priv->vadjustment->value +
5851                                 tree_view->priv->vadjustment->page_size)
5852                                - dy - height;
5853                 }
5854               else
5855                 {
5856                   /* row not visible */
5857                   if (dy >= 0
5858                       && dy + height <= tree_view->priv->vadjustment->page_size)
5859                     {
5860                       /* row at the beginning -- fixed */
5861                       area_above = dy;
5862                       area_below = tree_view->priv->vadjustment->page_size
5863                                    - area_above - height;
5864                     }
5865                   else if (dy >= (tree_view->priv->vadjustment->upper -
5866                                   tree_view->priv->vadjustment->page_size))
5867                     {
5868                       /* row at the end -- fixed */
5869                       area_above = dy - (tree_view->priv->vadjustment->upper -
5870                                    tree_view->priv->vadjustment->page_size);
5871                       area_below = tree_view->priv->vadjustment->page_size -
5872                                    area_above - height;
5873
5874                       if (area_below < 0)
5875                         {
5876                           area_above = tree_view->priv->vadjustment->page_size - height;
5877                           area_below = 0;
5878                         }
5879                     }
5880                   else
5881                     {
5882                       /* row somewhere in the middle, bring it to the top
5883                        * of the view
5884                        */
5885                       area_above = 0;
5886                       area_below = total_height - height;
5887                     }
5888                 }
5889             }
5890         }
5891       else
5892         /* the scroll to isn't valid; ignore it.
5893          */
5894         {
5895           if (tree_view->priv->scroll_to_path && !path)
5896             {
5897               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5898               tree_view->priv->scroll_to_path = NULL;
5899             }
5900           if (path)
5901             gtk_tree_path_free (path);
5902           path = NULL;
5903         }
5904     }
5905
5906   /* We didn't have a scroll_to set, so we just handle things normally
5907    */
5908   if (path == NULL)
5909     {
5910       gint offset;
5911
5912       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5913                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5914                                         &tree, &node);
5915       if (node == NULL)
5916         {
5917           /* In this case, nothing has been validated */
5918           path = gtk_tree_path_new_first ();
5919           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5920         }
5921       else
5922         {
5923           path = _gtk_tree_view_find_path (tree_view, tree, node);
5924           total_height += offset;
5925         }
5926
5927       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5928
5929       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5930           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5931         {
5932           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5933           if (validate_row (tree_view, tree, node, &iter, path))
5934             size_changed = TRUE;
5935         }
5936       area_above = 0;
5937       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5938     }
5939
5940   above_path = gtk_tree_path_copy (path);
5941
5942   /* if we do not validate any row above the new top_row, we will make sure
5943    * that the row immediately above top_row has been validated. (if we do not
5944    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5945    * when invalidated that row's height will be zero. and this will mess up
5946    * scrolling).
5947    */
5948   if (area_above == 0)
5949     {
5950       GtkRBTree *tmptree;
5951       GtkRBNode *tmpnode;
5952
5953       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5954       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5955
5956       if (tmpnode)
5957         {
5958           GtkTreePath *tmppath;
5959           GtkTreeIter tmpiter;
5960
5961           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5962           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5963
5964           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5965               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5966             {
5967               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5968               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5969                 size_changed = TRUE;
5970             }
5971
5972           gtk_tree_path_free (tmppath);
5973         }
5974     }
5975
5976   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5977    * backwards is much slower then forward, as there is no iter_prev function.
5978    * We go forwards first in case we run out of tree.  Then we go backwards to
5979    * fill out the top.
5980    */
5981   while (node && area_below > 0)
5982     {
5983       if (node->children)
5984         {
5985           GtkTreeIter parent = iter;
5986           gboolean has_child;
5987
5988           tree = node->children;
5989           node = tree->root;
5990
5991           g_assert (node != tree->nil);
5992
5993           while (node->left != tree->nil)
5994             node = node->left;
5995           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5996                                                     &iter,
5997                                                     &parent);
5998           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5999           gtk_tree_path_down (path);
6000         }
6001       else
6002         {
6003           gboolean done = FALSE;
6004           do
6005             {
6006               node = _gtk_rbtree_next (tree, node);
6007               if (node != NULL)
6008                 {
6009                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
6010                   done = TRUE;
6011                   gtk_tree_path_next (path);
6012
6013                   /* Sanity Check! */
6014                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
6015                 }
6016               else
6017                 {
6018                   GtkTreeIter parent_iter = iter;
6019                   gboolean has_parent;
6020
6021                   node = tree->parent_node;
6022                   tree = tree->parent_tree;
6023                   if (tree == NULL)
6024                     break;
6025                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
6026                                                            &iter,
6027                                                            &parent_iter);
6028                   gtk_tree_path_up (path);
6029
6030                   /* Sanity check */
6031                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
6032                 }
6033             }
6034           while (!done);
6035         }
6036
6037       if (!node)
6038         break;
6039
6040       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6041           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6042         {
6043           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6044           if (validate_row (tree_view, tree, node, &iter, path))
6045               size_changed = TRUE;
6046         }
6047
6048       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6049     }
6050   gtk_tree_path_free (path);
6051
6052   /* If we ran out of tree, and have extra area_below left, we need to add it
6053    * to area_above */
6054   if (area_below > 0)
6055     area_above += area_below;
6056
6057   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
6058
6059   /* We walk backwards */
6060   while (area_above > 0)
6061     {
6062       _gtk_rbtree_prev_full (tree, node, &tree, &node);
6063
6064       /* Always find the new path in the tree.  We cannot just assume
6065        * a gtk_tree_path_prev() is enough here, as there might be children
6066        * in between this node and the previous sibling node.  If this
6067        * appears to be a performance hotspot in profiles, we can look into
6068        * intrigate logic for keeping path, node and iter in sync like
6069        * we do for forward walks.  (Which will be hard because of the lacking
6070        * iter_prev).
6071        */
6072
6073       if (node == NULL)
6074         break;
6075
6076       gtk_tree_path_free (above_path);
6077       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6078
6079       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6080
6081       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6082           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6083         {
6084           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6085           if (validate_row (tree_view, tree, node, &iter, above_path))
6086             size_changed = TRUE;
6087         }
6088       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6089     }
6090
6091   /* if we scrolled to a path, we need to set the dy here,
6092    * and sync the top row accordingly
6093    */
6094   if (tree_view->priv->scroll_to_path)
6095     {
6096       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6097       gtk_tree_view_top_row_to_dy (tree_view);
6098
6099       need_redraw = TRUE;
6100     }
6101   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6102     {
6103       /* when we are not scrolling, we should never set dy to something
6104        * else than zero. we update top_row to be in sync with dy = 0.
6105        */
6106       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6107       gtk_tree_view_dy_to_top_row (tree_view);
6108     }
6109   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6110     {
6111       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6112       gtk_tree_view_dy_to_top_row (tree_view);
6113     }
6114   else
6115     gtk_tree_view_top_row_to_dy (tree_view);
6116
6117   /* update width/height and queue a resize */
6118   if (size_changed)
6119     {
6120       GtkRequisition requisition;
6121
6122       /* We temporarily guess a size, under the assumption that it will be the
6123        * same when we get our next size_allocate.  If we don't do this, we'll be
6124        * in an inconsistent state if we call top_row_to_dy. */
6125
6126       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6127       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6128       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6129       gtk_adjustment_changed (tree_view->priv->hadjustment);
6130       gtk_adjustment_changed (tree_view->priv->vadjustment);
6131       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6132     }
6133
6134   if (tree_view->priv->scroll_to_path)
6135     {
6136       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6137       tree_view->priv->scroll_to_path = NULL;
6138     }
6139
6140   if (above_path)
6141     gtk_tree_path_free (above_path);
6142
6143   if (tree_view->priv->scroll_to_column)
6144     {
6145       tree_view->priv->scroll_to_column = NULL;
6146     }
6147   if (need_redraw)
6148     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6149 }
6150
6151 static void
6152 initialize_fixed_height_mode (GtkTreeView *tree_view)
6153 {
6154   if (!tree_view->priv->tree)
6155     return;
6156
6157   if (tree_view->priv->fixed_height < 0)
6158     {
6159       GtkTreeIter iter;
6160       GtkTreePath *path;
6161
6162       GtkRBTree *tree = NULL;
6163       GtkRBNode *node = NULL;
6164
6165       tree = tree_view->priv->tree;
6166       node = tree->root;
6167
6168       path = _gtk_tree_view_find_path (tree_view, tree, node);
6169       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6170
6171       validate_row (tree_view, tree, node, &iter, path);
6172
6173       gtk_tree_path_free (path);
6174
6175       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6176     }
6177
6178    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6179                                  tree_view->priv->fixed_height, TRUE);
6180 }
6181
6182 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6183  * the left-most uninvalidated node.  We then try walking right, validating
6184  * nodes.  Once we find a valid node, we repeat the previous process of finding
6185  * the first invalid node.
6186  */
6187
6188 static gboolean
6189 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6190 {
6191   GtkRBTree *tree = NULL;
6192   GtkRBNode *node = NULL;
6193   gboolean validated_area = FALSE;
6194   gint retval = TRUE;
6195   GtkTreePath *path = NULL;
6196   GtkTreeIter iter;
6197   GTimer *timer;
6198   gint i = 0;
6199
6200   gint prev_height = -1;
6201   gboolean fixed_height = TRUE;
6202
6203   g_assert (tree_view);
6204
6205   if (tree_view->priv->tree == NULL)
6206       return FALSE;
6207
6208   if (tree_view->priv->fixed_height_mode)
6209     {
6210       if (tree_view->priv->fixed_height < 0)
6211         initialize_fixed_height_mode (tree_view);
6212
6213       return FALSE;
6214     }
6215
6216   timer = g_timer_new ();
6217   g_timer_start (timer);
6218
6219   do
6220     {
6221       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6222         {
6223           retval = FALSE;
6224           goto done;
6225         }
6226
6227       if (path != NULL)
6228         {
6229           node = _gtk_rbtree_next (tree, node);
6230           if (node != NULL)
6231             {
6232               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6233               gtk_tree_path_next (path);
6234             }
6235           else
6236             {
6237               gtk_tree_path_free (path);
6238               path = NULL;
6239             }
6240         }
6241
6242       if (path == NULL)
6243         {
6244           tree = tree_view->priv->tree;
6245           node = tree_view->priv->tree->root;
6246
6247           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6248
6249           do
6250             {
6251               if (node->left != tree->nil &&
6252                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6253                 {
6254                   node = node->left;
6255                 }
6256               else if (node->right != tree->nil &&
6257                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6258                 {
6259                   node = node->right;
6260                 }
6261               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6262                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6263                 {
6264                   break;
6265                 }
6266               else if (node->children != NULL)
6267                 {
6268                   tree = node->children;
6269                   node = tree->root;
6270                 }
6271               else
6272                 /* RBTree corruption!  All bad */
6273                 g_assert_not_reached ();
6274             }
6275           while (TRUE);
6276           path = _gtk_tree_view_find_path (tree_view, tree, node);
6277           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6278         }
6279
6280       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6281                        validated_area;
6282
6283       if (!tree_view->priv->fixed_height_check)
6284         {
6285           gint height;
6286
6287           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6288           if (prev_height < 0)
6289             prev_height = height;
6290           else if (prev_height != height)
6291             fixed_height = FALSE;
6292         }
6293
6294       i++;
6295     }
6296   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6297
6298   if (!tree_view->priv->fixed_height_check)
6299    {
6300      if (fixed_height)
6301        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6302
6303      tree_view->priv->fixed_height_check = 1;
6304    }
6305
6306  done:
6307   if (validated_area)
6308     {
6309       GtkRequisition requisition;
6310       /* We temporarily guess a size, under the assumption that it will be the
6311        * same when we get our next size_allocate.  If we don't do this, we'll be
6312        * in an inconsistent state when we call top_row_to_dy. */
6313
6314       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6315       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6316       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6317       gtk_adjustment_changed (tree_view->priv->hadjustment);
6318       gtk_adjustment_changed (tree_view->priv->vadjustment);
6319
6320       if (queue_resize)
6321         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6322     }
6323
6324   if (path) gtk_tree_path_free (path);
6325   g_timer_destroy (timer);
6326
6327   return retval;
6328 }
6329
6330 static gboolean
6331 validate_rows (GtkTreeView *tree_view)
6332 {
6333   gboolean retval;
6334
6335   retval = do_validate_rows (tree_view, TRUE);
6336
6337   if (! retval && tree_view->priv->validate_rows_timer)
6338     {
6339       g_source_remove (tree_view->priv->validate_rows_timer);
6340       tree_view->priv->validate_rows_timer = 0;
6341     }
6342
6343   return retval;
6344 }
6345
6346 static gboolean
6347 validate_rows_handler (GtkTreeView *tree_view)
6348 {
6349   gboolean retval;
6350
6351   retval = do_validate_rows (tree_view, TRUE);
6352   if (! retval && tree_view->priv->validate_rows_timer)
6353     {
6354       g_source_remove (tree_view->priv->validate_rows_timer);
6355       tree_view->priv->validate_rows_timer = 0;
6356     }
6357
6358   return retval;
6359 }
6360
6361 static gboolean
6362 do_presize_handler (GtkTreeView *tree_view)
6363 {
6364   if (tree_view->priv->mark_rows_col_dirty)
6365     {
6366       if (tree_view->priv->tree)
6367         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6368       tree_view->priv->mark_rows_col_dirty = FALSE;
6369     }
6370   validate_visible_area (tree_view);
6371   tree_view->priv->presize_handler_timer = 0;
6372
6373   if (tree_view->priv->fixed_height_mode)
6374     {
6375       GtkRequisition requisition;
6376
6377       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6378
6379       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6380       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6381       gtk_adjustment_changed (tree_view->priv->hadjustment);
6382       gtk_adjustment_changed (tree_view->priv->vadjustment);
6383       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6384     }
6385
6386   return FALSE;
6387 }
6388
6389 static gboolean
6390 presize_handler_callback (gpointer data)
6391 {
6392   do_presize_handler (GTK_TREE_VIEW (data));
6393
6394   return FALSE;
6395 }
6396
6397 static void
6398 install_presize_handler (GtkTreeView *tree_view)
6399 {
6400   if (! GTK_WIDGET_REALIZED (tree_view))
6401     return;
6402
6403   if (! tree_view->priv->presize_handler_timer)
6404     {
6405       tree_view->priv->presize_handler_timer =
6406         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6407     }
6408   if (! tree_view->priv->validate_rows_timer)
6409     {
6410       tree_view->priv->validate_rows_timer =
6411         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6412     }
6413 }
6414
6415 static gboolean
6416 scroll_sync_handler (GtkTreeView *tree_view)
6417 {
6418   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6419     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6420   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6421     gtk_tree_view_top_row_to_dy (tree_view);
6422   else
6423     gtk_tree_view_dy_to_top_row (tree_view);
6424
6425   tree_view->priv->scroll_sync_timer = 0;
6426
6427   return FALSE;
6428 }
6429
6430 static void
6431 install_scroll_sync_handler (GtkTreeView *tree_view)
6432 {
6433   if (! GTK_WIDGET_REALIZED (tree_view))
6434     return;
6435
6436   if (!tree_view->priv->scroll_sync_timer)
6437     {
6438       tree_view->priv->scroll_sync_timer =
6439         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6440     }
6441 }
6442
6443 static void
6444 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6445                            GtkTreePath *path,
6446                            gint         offset)
6447 {
6448   gtk_tree_row_reference_free (tree_view->priv->top_row);
6449
6450   if (!path)
6451     {
6452       tree_view->priv->top_row = NULL;
6453       tree_view->priv->top_row_dy = 0;
6454     }
6455   else
6456     {
6457       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6458       tree_view->priv->top_row_dy = offset;
6459     }
6460 }
6461
6462 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6463  * it's set to be NULL, and top_row_dy is 0;
6464  */
6465 static void
6466 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6467 {
6468   gint offset;
6469   GtkTreePath *path;
6470   GtkRBTree *tree;
6471   GtkRBNode *node;
6472
6473   if (tree_view->priv->tree == NULL)
6474     {
6475       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6476     }
6477   else
6478     {
6479       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6480                                         tree_view->priv->dy,
6481                                         &tree, &node);
6482
6483       if (tree == NULL)
6484         {
6485           tree_view->priv->top_row = NULL;
6486           tree_view->priv->top_row_dy = 0;
6487         }
6488       else
6489         {
6490           path = _gtk_tree_view_find_path (tree_view, tree, node);
6491           gtk_tree_view_set_top_row (tree_view, path, offset);
6492           gtk_tree_path_free (path);
6493         }
6494     }
6495 }
6496
6497 static void
6498 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6499 {
6500   GtkTreePath *path;
6501   GtkRBTree *tree;
6502   GtkRBNode *node;
6503   int new_dy;
6504
6505   /* Avoid recursive calls */
6506   if (tree_view->priv->in_top_row_to_dy)
6507     return;
6508
6509   if (tree_view->priv->top_row)
6510     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6511   else
6512     path = NULL;
6513
6514   if (!path)
6515     tree = NULL;
6516   else
6517     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6518
6519   if (path)
6520     gtk_tree_path_free (path);
6521
6522   if (tree == NULL)
6523     {
6524       /* keep dy and set new toprow */
6525       gtk_tree_row_reference_free (tree_view->priv->top_row);
6526       tree_view->priv->top_row = NULL;
6527       tree_view->priv->top_row_dy = 0;
6528       /* DO NOT install the idle handler */
6529       gtk_tree_view_dy_to_top_row (tree_view);
6530       return;
6531     }
6532
6533   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6534       < tree_view->priv->top_row_dy)
6535     {
6536       /* new top row -- do NOT install the idle handler */
6537       gtk_tree_view_dy_to_top_row (tree_view);
6538       return;
6539     }
6540
6541   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6542   new_dy += tree_view->priv->top_row_dy;
6543
6544   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6545     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6546
6547   new_dy = MAX (0, new_dy);
6548
6549   tree_view->priv->in_top_row_to_dy = TRUE;
6550   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6551   tree_view->priv->in_top_row_to_dy = FALSE;
6552 }
6553
6554
6555 void
6556 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6557 {
6558   tree_view->priv->mark_rows_col_dirty = TRUE;
6559
6560   install_presize_handler (tree_view);
6561 }
6562
6563 /*
6564  * This function works synchronously (due to the while (validate_rows...)
6565  * loop).
6566  *
6567  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6568  * here. You now need to check that yourself.
6569  */
6570 void
6571 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6572                                 GtkTreeViewColumn *column)
6573 {
6574   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6575   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6576
6577   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6578
6579   do_presize_handler (tree_view);
6580   while (validate_rows (tree_view));
6581
6582   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6583 }
6584
6585 /* Drag-and-drop */
6586
6587 static void
6588 set_source_row (GdkDragContext *context,
6589                 GtkTreeModel   *model,
6590                 GtkTreePath    *source_row)
6591 {
6592   g_object_set_data_full (G_OBJECT (context),
6593                           I_("gtk-tree-view-source-row"),
6594                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6595                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6596 }
6597
6598 static GtkTreePath*
6599 get_source_row (GdkDragContext *context)
6600 {
6601   GtkTreeRowReference *ref =
6602     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6603
6604   if (ref)
6605     return gtk_tree_row_reference_get_path (ref);
6606   else
6607     return NULL;
6608 }
6609
6610 typedef struct
6611 {
6612   GtkTreeRowReference *dest_row;
6613   guint                path_down_mode   : 1;
6614   guint                empty_view_drop  : 1;
6615   guint                drop_append_mode : 1;
6616 }
6617 DestRow;
6618
6619 static void
6620 dest_row_free (gpointer data)
6621 {
6622   DestRow *dr = (DestRow *)data;
6623
6624   gtk_tree_row_reference_free (dr->dest_row);
6625   g_slice_free (DestRow, dr);
6626 }
6627
6628 static void
6629 set_dest_row (GdkDragContext *context,
6630               GtkTreeModel   *model,
6631               GtkTreePath    *dest_row,
6632               gboolean        path_down_mode,
6633               gboolean        empty_view_drop,
6634               gboolean        drop_append_mode)
6635 {
6636   DestRow *dr;
6637
6638   if (!dest_row)
6639     {
6640       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6641                               NULL, NULL);
6642       return;
6643     }
6644
6645   dr = g_slice_new (DestRow);
6646
6647   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6648   dr->path_down_mode = path_down_mode != FALSE;
6649   dr->empty_view_drop = empty_view_drop != FALSE;
6650   dr->drop_append_mode = drop_append_mode != FALSE;
6651
6652   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6653                           dr, (GDestroyNotify) dest_row_free);
6654 }
6655
6656 static GtkTreePath*
6657 get_dest_row (GdkDragContext *context,
6658               gboolean       *path_down_mode)
6659 {
6660   DestRow *dr =
6661     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6662
6663   if (dr)
6664     {
6665       GtkTreePath *path = NULL;
6666
6667       if (path_down_mode)
6668         *path_down_mode = dr->path_down_mode;
6669
6670       if (dr->dest_row)
6671         path = gtk_tree_row_reference_get_path (dr->dest_row);
6672       else if (dr->empty_view_drop)
6673         path = gtk_tree_path_new_from_indices (0, -1);
6674       else
6675         path = NULL;
6676
6677       if (path && dr->drop_append_mode)
6678         gtk_tree_path_next (path);
6679
6680       return path;
6681     }
6682   else
6683     return NULL;
6684 }
6685
6686 /* Get/set whether drag_motion requested the drag data and
6687  * drag_data_received should thus not actually insert the data,
6688  * since the data doesn't result from a drop.
6689  */
6690 static void
6691 set_status_pending (GdkDragContext *context,
6692                     GdkDragAction   suggested_action)
6693 {
6694   g_object_set_data (G_OBJECT (context),
6695                      I_("gtk-tree-view-status-pending"),
6696                      GINT_TO_POINTER (suggested_action));
6697 }
6698
6699 static GdkDragAction
6700 get_status_pending (GdkDragContext *context)
6701 {
6702   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6703                                              "gtk-tree-view-status-pending"));
6704 }
6705
6706 static TreeViewDragInfo*
6707 get_info (GtkTreeView *tree_view)
6708 {
6709   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6710 }
6711
6712 static void
6713 destroy_info (TreeViewDragInfo *di)
6714 {
6715   g_slice_free (TreeViewDragInfo, di);
6716 }
6717
6718 static TreeViewDragInfo*
6719 ensure_info (GtkTreeView *tree_view)
6720 {
6721   TreeViewDragInfo *di;
6722
6723   di = get_info (tree_view);
6724
6725   if (di == NULL)
6726     {
6727       di = g_slice_new0 (TreeViewDragInfo);
6728
6729       g_object_set_data_full (G_OBJECT (tree_view),
6730                               I_("gtk-tree-view-drag-info"),
6731                               di,
6732                               (GDestroyNotify) destroy_info);
6733     }
6734
6735   return di;
6736 }
6737
6738 static void
6739 remove_info (GtkTreeView *tree_view)
6740 {
6741   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6742 }
6743
6744 #if 0
6745 static gint
6746 drag_scan_timeout (gpointer data)
6747 {
6748   GtkTreeView *tree_view;
6749   gint x, y;
6750   GdkModifierType state;
6751   GtkTreePath *path = NULL;
6752   GtkTreeViewColumn *column = NULL;
6753   GdkRectangle visible_rect;
6754
6755   GDK_THREADS_ENTER ();
6756
6757   tree_view = GTK_TREE_VIEW (data);
6758
6759   gdk_window_get_pointer (tree_view->priv->bin_window,
6760                           &x, &y, &state);
6761
6762   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6763
6764   /* See if we are near the edge. */
6765   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6766       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6767       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6768       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6769     {
6770       gtk_tree_view_get_path_at_pos (tree_view,
6771                                      tree_view->priv->bin_window,
6772                                      x, y,
6773                                      &path,
6774                                      &column,
6775                                      NULL,
6776                                      NULL);
6777
6778       if (path != NULL)
6779         {
6780           gtk_tree_view_scroll_to_cell (tree_view,
6781                                         path,
6782                                         column,
6783                                         TRUE,
6784                                         0.5, 0.5);
6785
6786           gtk_tree_path_free (path);
6787         }
6788     }
6789
6790   GDK_THREADS_LEAVE ();
6791
6792   return TRUE;
6793 }
6794 #endif /* 0 */
6795
6796 static void
6797 add_scroll_timeout (GtkTreeView *tree_view)
6798 {
6799   if (tree_view->priv->scroll_timeout == 0)
6800     {
6801       tree_view->priv->scroll_timeout =
6802         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6803     }
6804 }
6805
6806 static void
6807 remove_scroll_timeout (GtkTreeView *tree_view)
6808 {
6809   if (tree_view->priv->scroll_timeout != 0)
6810     {
6811       g_source_remove (tree_view->priv->scroll_timeout);
6812       tree_view->priv->scroll_timeout = 0;
6813     }
6814 }
6815
6816 static gboolean
6817 check_model_dnd (GtkTreeModel *model,
6818                  GType         required_iface,
6819                  const gchar  *signal)
6820 {
6821   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6822     {
6823       g_warning ("You must override the default '%s' handler "
6824                  "on GtkTreeView when using models that don't support "
6825                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6826                  "is to connect to '%s' and call "
6827                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6828                  "the default handler from running. Look at the source code "
6829                  "for the default handler in gtktreeview.c to get an idea what "
6830                  "your handler should do. (gtktreeview.c is in the GTK source "
6831                  "code.) If you're using GTK from a language other than C, "
6832                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6833                  signal, g_type_name (required_iface), signal);
6834       return FALSE;
6835     }
6836   else
6837     return TRUE;
6838 }
6839
6840 static void
6841 remove_open_timeout (GtkTreeView *tree_view)
6842 {
6843   if (tree_view->priv->open_dest_timeout != 0)
6844     {
6845       g_source_remove (tree_view->priv->open_dest_timeout);
6846       tree_view->priv->open_dest_timeout = 0;
6847     }
6848 }
6849
6850
6851 static gint
6852 open_row_timeout (gpointer data)
6853 {
6854   GtkTreeView *tree_view = data;
6855   GtkTreePath *dest_path = NULL;
6856   GtkTreeViewDropPosition pos;
6857   gboolean result = FALSE;
6858
6859   gtk_tree_view_get_drag_dest_row (tree_view,
6860                                    &dest_path,
6861                                    &pos);
6862
6863   if (dest_path &&
6864       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6865        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6866     {
6867       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6868       tree_view->priv->open_dest_timeout = 0;
6869
6870       gtk_tree_path_free (dest_path);
6871     }
6872   else
6873     {
6874       if (dest_path)
6875         gtk_tree_path_free (dest_path);
6876
6877       result = TRUE;
6878     }
6879
6880   return result;
6881 }
6882
6883 static gboolean
6884 scroll_row_timeout (gpointer data)
6885 {
6886   GtkTreeView *tree_view = data;
6887
6888   gtk_tree_view_vertical_autoscroll (tree_view);
6889
6890   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6891     gtk_tree_view_update_rubber_band (tree_view);
6892
6893   return TRUE;
6894 }
6895
6896 /* Returns TRUE if event should not be propagated to parent widgets */
6897 static gboolean
6898 set_destination_row (GtkTreeView    *tree_view,
6899                      GdkDragContext *context,
6900                      /* coordinates relative to the widget */
6901                      gint            x,
6902                      gint            y,
6903                      GdkDragAction  *suggested_action,
6904                      GdkAtom        *target)
6905 {
6906   GtkTreePath *path = NULL;
6907   GtkTreeViewDropPosition pos;
6908   GtkTreeViewDropPosition old_pos;
6909   TreeViewDragInfo *di;
6910   GtkWidget *widget;
6911   GtkTreePath *old_dest_path = NULL;
6912   gboolean can_drop = FALSE;
6913
6914   *suggested_action = 0;
6915   *target = GDK_NONE;
6916
6917   widget = GTK_WIDGET (tree_view);
6918
6919   di = get_info (tree_view);
6920
6921   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6922     {
6923       /* someone unset us as a drag dest, note that if
6924        * we return FALSE drag_leave isn't called
6925        */
6926
6927       gtk_tree_view_set_drag_dest_row (tree_view,
6928                                        NULL,
6929                                        GTK_TREE_VIEW_DROP_BEFORE);
6930
6931       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6932       remove_open_timeout (GTK_TREE_VIEW (widget));
6933
6934       return FALSE; /* no longer a drop site */
6935     }
6936
6937   *target = gtk_drag_dest_find_target (widget, context,
6938                                        gtk_drag_dest_get_target_list (widget));
6939   if (*target == GDK_NONE)
6940     {
6941       return FALSE;
6942     }
6943
6944   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6945                                           x, y,
6946                                           &path,
6947                                           &pos))
6948     {
6949       gint n_children;
6950       GtkTreeModel *model;
6951
6952       remove_open_timeout (tree_view);
6953
6954       /* the row got dropped on empty space, let's setup a special case
6955        */
6956
6957       if (path)
6958         gtk_tree_path_free (path);
6959
6960       model = gtk_tree_view_get_model (tree_view);
6961
6962       n_children = gtk_tree_model_iter_n_children (model, NULL);
6963       if (n_children)
6964         {
6965           pos = GTK_TREE_VIEW_DROP_AFTER;
6966           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6967         }
6968       else
6969         {
6970           pos = GTK_TREE_VIEW_DROP_BEFORE;
6971           path = gtk_tree_path_new_from_indices (0, -1);
6972         }
6973
6974       can_drop = TRUE;
6975
6976       goto out;
6977     }
6978
6979   g_assert (path);
6980
6981   /* If we left the current row's "open" zone, unset the timeout for
6982    * opening the row
6983    */
6984   gtk_tree_view_get_drag_dest_row (tree_view,
6985                                    &old_dest_path,
6986                                    &old_pos);
6987
6988   if (old_dest_path &&
6989       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6990        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6991          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6992     remove_open_timeout (tree_view);
6993
6994   if (old_dest_path)
6995     gtk_tree_path_free (old_dest_path);
6996
6997   if (TRUE /* FIXME if the location droppable predicate */)
6998     {
6999       can_drop = TRUE;
7000     }
7001
7002 out:
7003   if (can_drop)
7004     {
7005       GtkWidget *source_widget;
7006
7007       *suggested_action = context->suggested_action;
7008       source_widget = gtk_drag_get_source_widget (context);
7009
7010       if (source_widget == widget)
7011         {
7012           /* Default to MOVE, unless the user has
7013            * pressed ctrl or shift to affect available actions
7014            */
7015           if ((context->actions & GDK_ACTION_MOVE) != 0)
7016             *suggested_action = GDK_ACTION_MOVE;
7017         }
7018
7019       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7020                                        path, pos);
7021     }
7022   else
7023     {
7024       /* can't drop here */
7025       remove_open_timeout (tree_view);
7026
7027       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7028                                        NULL,
7029                                        GTK_TREE_VIEW_DROP_BEFORE);
7030     }
7031
7032   if (path)
7033     gtk_tree_path_free (path);
7034
7035   return TRUE;
7036 }
7037
7038 static GtkTreePath*
7039 get_logical_dest_row (GtkTreeView *tree_view,
7040                       gboolean    *path_down_mode,
7041                       gboolean    *drop_append_mode)
7042 {
7043   /* adjust path to point to the row the drop goes in front of */
7044   GtkTreePath *path = NULL;
7045   GtkTreeViewDropPosition pos;
7046
7047   g_return_val_if_fail (path_down_mode != NULL, NULL);
7048   g_return_val_if_fail (drop_append_mode != NULL, NULL);
7049
7050   *path_down_mode = FALSE;
7051   *drop_append_mode = 0;
7052
7053   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7054
7055   if (path == NULL)
7056     return NULL;
7057
7058   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
7059     ; /* do nothing */
7060   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
7061            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
7062     *path_down_mode = TRUE;
7063   else
7064     {
7065       GtkTreeIter iter;
7066       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
7067
7068       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
7069
7070       if (!gtk_tree_model_get_iter (model, &iter, path) ||
7071           !gtk_tree_model_iter_next (model, &iter))
7072         *drop_append_mode = 1;
7073       else
7074         {
7075           *drop_append_mode = 0;
7076           gtk_tree_path_next (path);
7077         }
7078     }
7079
7080   return path;
7081 }
7082
7083 static gboolean
7084 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7085                                         GdkEventMotion   *event)
7086 {
7087   GtkWidget *widget = GTK_WIDGET (tree_view);
7088   GdkDragContext *context;
7089   TreeViewDragInfo *di;
7090   GtkTreePath *path = NULL;
7091   gint button;
7092   gint cell_x, cell_y;
7093   GtkTreeModel *model;
7094   gboolean retval = FALSE;
7095
7096   di = get_info (tree_view);
7097
7098   if (di == NULL || !di->source_set)
7099     goto out;
7100
7101   if (tree_view->priv->pressed_button < 0)
7102     goto out;
7103
7104   if (!gtk_drag_check_threshold (widget,
7105                                  tree_view->priv->press_start_x,
7106                                  tree_view->priv->press_start_y,
7107                                  event->x, event->y))
7108     goto out;
7109
7110   model = gtk_tree_view_get_model (tree_view);
7111
7112   if (model == NULL)
7113     goto out;
7114
7115   button = tree_view->priv->pressed_button;
7116   tree_view->priv->pressed_button = -1;
7117
7118   gtk_tree_view_get_path_at_pos (tree_view,
7119                                  tree_view->priv->press_start_x,
7120                                  tree_view->priv->press_start_y,
7121                                  &path,
7122                                  NULL,
7123                                  &cell_x,
7124                                  &cell_y);
7125
7126   if (path == NULL)
7127     goto out;
7128
7129   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7130       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7131                                            path))
7132     goto out;
7133
7134   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7135     goto out;
7136
7137   /* Now we can begin the drag */
7138
7139   retval = TRUE;
7140
7141   context = gtk_drag_begin (widget,
7142                             gtk_drag_source_get_target_list (widget),
7143                             di->source_actions,
7144                             button,
7145                             (GdkEvent*)event);
7146
7147   set_source_row (context, model, path);
7148
7149  out:
7150   if (path)
7151     gtk_tree_path_free (path);
7152
7153   return retval;
7154 }
7155
7156
7157 static void
7158 gtk_tree_view_drag_begin (GtkWidget      *widget,
7159                           GdkDragContext *context)
7160 {
7161   GtkTreeView *tree_view;
7162   GtkTreePath *path = NULL;
7163   gint cell_x, cell_y;
7164   GdkPixmap *row_pix;
7165   TreeViewDragInfo *di;
7166
7167   tree_view = GTK_TREE_VIEW (widget);
7168
7169   /* if the user uses a custom DND source impl, we don't set the icon here */
7170   di = get_info (tree_view);
7171
7172   if (di == NULL || !di->source_set)
7173     return;
7174
7175   gtk_tree_view_get_path_at_pos (tree_view,
7176                                  tree_view->priv->press_start_x,
7177                                  tree_view->priv->press_start_y,
7178                                  &path,
7179                                  NULL,
7180                                  &cell_x,
7181                                  &cell_y);
7182
7183   g_return_if_fail (path != NULL);
7184
7185   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7186                                                 path);
7187
7188   gtk_drag_set_icon_pixmap (context,
7189                             gdk_drawable_get_colormap (row_pix),
7190                             row_pix,
7191                             NULL,
7192                             /* the + 1 is for the black border in the icon */
7193                             tree_view->priv->press_start_x + 1,
7194                             cell_y + 1);
7195
7196   g_object_unref (row_pix);
7197   gtk_tree_path_free (path);
7198 }
7199
7200 static void
7201 gtk_tree_view_drag_end (GtkWidget      *widget,
7202                         GdkDragContext *context)
7203 {
7204   /* do nothing */
7205 }
7206
7207 /* Default signal implementations for the drag signals */
7208 static void
7209 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7210                              GdkDragContext   *context,
7211                              GtkSelectionData *selection_data,
7212                              guint             info,
7213                              guint             time)
7214 {
7215   GtkTreeView *tree_view;
7216   GtkTreeModel *model;
7217   TreeViewDragInfo *di;
7218   GtkTreePath *source_row;
7219
7220   tree_view = GTK_TREE_VIEW (widget);
7221
7222   model = gtk_tree_view_get_model (tree_view);
7223
7224   if (model == NULL)
7225     return;
7226
7227   di = get_info (GTK_TREE_VIEW (widget));
7228
7229   if (di == NULL)
7230     return;
7231
7232   source_row = get_source_row (context);
7233
7234   if (source_row == NULL)
7235     return;
7236
7237   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7238    * any model; for DragSource models there are some other targets
7239    * we also support.
7240    */
7241
7242   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7243       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7244                                           source_row,
7245                                           selection_data))
7246     goto done;
7247
7248   /* If drag_data_get does nothing, try providing row data. */
7249   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7250     {
7251       gtk_tree_set_row_drag_data (selection_data,
7252                                   model,
7253                                   source_row);
7254     }
7255
7256  done:
7257   gtk_tree_path_free (source_row);
7258 }
7259
7260
7261 static void
7262 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7263                                 GdkDragContext *context)
7264 {
7265   TreeViewDragInfo *di;
7266   GtkTreeModel *model;
7267   GtkTreeView *tree_view;
7268   GtkTreePath *source_row;
7269
7270   tree_view = GTK_TREE_VIEW (widget);
7271   model = gtk_tree_view_get_model (tree_view);
7272
7273   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7274     return;
7275
7276   di = get_info (tree_view);
7277
7278   if (di == NULL)
7279     return;
7280
7281   source_row = get_source_row (context);
7282
7283   if (source_row == NULL)
7284     return;
7285
7286   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7287                                          source_row);
7288
7289   gtk_tree_path_free (source_row);
7290
7291   set_source_row (context, NULL, NULL);
7292 }
7293
7294 static void
7295 gtk_tree_view_drag_leave (GtkWidget      *widget,
7296                           GdkDragContext *context,
7297                           guint             time)
7298 {
7299   /* unset any highlight row */
7300   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7301                                    NULL,
7302                                    GTK_TREE_VIEW_DROP_BEFORE);
7303
7304   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7305   remove_open_timeout (GTK_TREE_VIEW (widget));
7306 }
7307
7308
7309 static gboolean
7310 gtk_tree_view_drag_motion (GtkWidget        *widget,
7311                            GdkDragContext   *context,
7312                            /* coordinates relative to the widget */
7313                            gint              x,
7314                            gint              y,
7315                            guint             time)
7316 {
7317   gboolean empty;
7318   GtkTreePath *path = NULL;
7319   GtkTreeViewDropPosition pos;
7320   GtkTreeView *tree_view;
7321   GdkDragAction suggested_action = 0;
7322   GdkAtom target;
7323
7324   tree_view = GTK_TREE_VIEW (widget);
7325
7326   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7327     return FALSE;
7328
7329   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7330
7331   /* we only know this *after* set_desination_row */
7332   empty = tree_view->priv->empty_view_drop;
7333
7334   if (path == NULL && !empty)
7335     {
7336       /* Can't drop here. */
7337       gdk_drag_status (context, 0, time);
7338     }
7339   else
7340     {
7341       if (tree_view->priv->open_dest_timeout == 0 &&
7342           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7343            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7344         {
7345           tree_view->priv->open_dest_timeout =
7346             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7347         }
7348       else
7349         {
7350           add_scroll_timeout (tree_view);
7351         }
7352
7353       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7354         {
7355           /* Request data so we can use the source row when
7356            * determining whether to accept the drop
7357            */
7358           set_status_pending (context, suggested_action);
7359           gtk_drag_get_data (widget, context, target, time);
7360         }
7361       else
7362         {
7363           set_status_pending (context, 0);
7364           gdk_drag_status (context, suggested_action, time);
7365         }
7366     }
7367
7368   if (path)
7369     gtk_tree_path_free (path);
7370
7371   return TRUE;
7372 }
7373
7374
7375 static gboolean
7376 gtk_tree_view_drag_drop (GtkWidget        *widget,
7377                          GdkDragContext   *context,
7378                          /* coordinates relative to the widget */
7379                          gint              x,
7380                          gint              y,
7381                          guint             time)
7382 {
7383   GtkTreeView *tree_view;
7384   GtkTreePath *path;
7385   GdkDragAction suggested_action = 0;
7386   GdkAtom target = GDK_NONE;
7387   TreeViewDragInfo *di;
7388   GtkTreeModel *model;
7389   gboolean path_down_mode;
7390   gboolean drop_append_mode;
7391
7392   tree_view = GTK_TREE_VIEW (widget);
7393
7394   model = gtk_tree_view_get_model (tree_view);
7395
7396   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7397   remove_open_timeout (GTK_TREE_VIEW (widget));
7398
7399   di = get_info (tree_view);
7400
7401   if (di == NULL)
7402     return FALSE;
7403
7404   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7405     return FALSE;
7406
7407   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7408     return FALSE;
7409
7410   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7411
7412   if (target != GDK_NONE && path != NULL)
7413     {
7414       /* in case a motion had requested drag data, change things so we
7415        * treat drag data receives as a drop.
7416        */
7417       set_status_pending (context, 0);
7418       set_dest_row (context, model, path,
7419                     path_down_mode, tree_view->priv->empty_view_drop,
7420                     drop_append_mode);
7421     }
7422
7423   if (path)
7424     gtk_tree_path_free (path);
7425
7426   /* Unset this thing */
7427   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7428                                    NULL,
7429                                    GTK_TREE_VIEW_DROP_BEFORE);
7430
7431   if (target != GDK_NONE)
7432     {
7433       gtk_drag_get_data (widget, context, target, time);
7434       return TRUE;
7435     }
7436   else
7437     return FALSE;
7438 }
7439
7440 static void
7441 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7442                                   GdkDragContext   *context,
7443                                   /* coordinates relative to the widget */
7444                                   gint              x,
7445                                   gint              y,
7446                                   GtkSelectionData *selection_data,
7447                                   guint             info,
7448                                   guint             time)
7449 {
7450   GtkTreePath *path;
7451   TreeViewDragInfo *di;
7452   gboolean accepted = FALSE;
7453   GtkTreeModel *model;
7454   GtkTreeView *tree_view;
7455   GtkTreePath *dest_row;
7456   GdkDragAction suggested_action;
7457   gboolean path_down_mode;
7458   gboolean drop_append_mode;
7459
7460   tree_view = GTK_TREE_VIEW (widget);
7461
7462   model = gtk_tree_view_get_model (tree_view);
7463
7464   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7465     return;
7466
7467   di = get_info (tree_view);
7468
7469   if (di == NULL)
7470     return;
7471
7472   suggested_action = get_status_pending (context);
7473
7474   if (suggested_action)
7475     {
7476       /* We are getting this data due to a request in drag_motion,
7477        * rather than due to a request in drag_drop, so we are just
7478        * supposed to call drag_status, not actually paste in the
7479        * data.
7480        */
7481       path = get_logical_dest_row (tree_view, &path_down_mode,
7482                                    &drop_append_mode);
7483
7484       if (path == NULL)
7485         suggested_action = 0;
7486       else if (path_down_mode)
7487         gtk_tree_path_down (path);
7488
7489       if (suggested_action)
7490         {
7491           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7492                                                      path,
7493                                                      selection_data))
7494             {
7495               if (path_down_mode)
7496                 {
7497                   path_down_mode = FALSE;
7498                   gtk_tree_path_up (path);
7499
7500                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7501                                                              path,
7502                                                              selection_data))
7503                     suggested_action = 0;
7504                 }
7505               else
7506                 suggested_action = 0;
7507             }
7508         }
7509
7510       gdk_drag_status (context, suggested_action, time);
7511
7512       if (path)
7513         gtk_tree_path_free (path);
7514
7515       /* If you can't drop, remove user drop indicator until the next motion */
7516       if (suggested_action == 0)
7517         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7518                                          NULL,
7519                                          GTK_TREE_VIEW_DROP_BEFORE);
7520
7521       return;
7522     }
7523
7524   dest_row = get_dest_row (context, &path_down_mode);
7525
7526   if (dest_row == NULL)
7527     return;
7528
7529   if (selection_data->length >= 0)
7530     {
7531       if (path_down_mode)
7532         {
7533           gtk_tree_path_down (dest_row);
7534           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7535                                                      dest_row, selection_data))
7536             gtk_tree_path_up (dest_row);
7537         }
7538     }
7539
7540   if (selection_data->length >= 0)
7541     {
7542       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7543                                                  dest_row,
7544                                                  selection_data))
7545         accepted = TRUE;
7546     }
7547
7548   gtk_drag_finish (context,
7549                    accepted,
7550                    (context->action == GDK_ACTION_MOVE),
7551                    time);
7552
7553   if (gtk_tree_path_get_depth (dest_row) == 1
7554       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7555     {
7556       /* special special case drag to "0", scroll to first item */
7557       if (!tree_view->priv->scroll_to_path)
7558         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7559     }
7560
7561   gtk_tree_path_free (dest_row);
7562
7563   /* drop dest_row */
7564   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7565 }
7566
7567
7568
7569 /* GtkContainer Methods
7570  */
7571
7572
7573 static void
7574 gtk_tree_view_remove (GtkContainer *container,
7575                       GtkWidget    *widget)
7576 {
7577   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7578   GtkTreeViewChild *child = NULL;
7579   GList *tmp_list;
7580
7581   tmp_list = tree_view->priv->children;
7582   while (tmp_list)
7583     {
7584       child = tmp_list->data;
7585       if (child->widget == widget)
7586         {
7587           gtk_widget_unparent (widget);
7588
7589           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7590           g_list_free_1 (tmp_list);
7591           g_slice_free (GtkTreeViewChild, child);
7592           return;
7593         }
7594
7595       tmp_list = tmp_list->next;
7596     }
7597
7598   tmp_list = tree_view->priv->columns;
7599
7600   while (tmp_list)
7601     {
7602       GtkTreeViewColumn *column;
7603       column = tmp_list->data;
7604       if (column->button == widget)
7605         {
7606           gtk_widget_unparent (widget);
7607           return;
7608         }
7609       tmp_list = tmp_list->next;
7610     }
7611 }
7612
7613 static void
7614 gtk_tree_view_forall (GtkContainer *container,
7615                       gboolean      include_internals,
7616                       GtkCallback   callback,
7617                       gpointer      callback_data)
7618 {
7619   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7620   GtkTreeViewChild *child = NULL;
7621   GtkTreeViewColumn *column;
7622   GList *tmp_list;
7623
7624   tmp_list = tree_view->priv->children;
7625   while (tmp_list)
7626     {
7627       child = tmp_list->data;
7628       tmp_list = tmp_list->next;
7629
7630       (* callback) (child->widget, callback_data);
7631     }
7632   if (include_internals == FALSE)
7633     return;
7634
7635   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7636     {
7637       column = tmp_list->data;
7638
7639       if (column->button)
7640         (* callback) (column->button, callback_data);
7641     }
7642 }
7643
7644 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7645  * cells. If so we draw one big row-spanning focus rectangle.
7646  */
7647 static gboolean
7648 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7649 {
7650   GList *list;
7651
7652   for (list = tree_view->priv->columns; list; list = list->next)
7653     {
7654       if (!((GtkTreeViewColumn *)list->data)->visible)
7655         continue;
7656       if (_gtk_tree_view_column_count_special_cells (list->data))
7657         return TRUE;
7658     }
7659
7660   return FALSE;
7661 }
7662
7663 static void
7664 column_sizing_notify (GObject    *object,
7665                       GParamSpec *pspec,
7666                       gpointer    data)
7667 {
7668   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7669
7670   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7671     /* disable fixed height mode */
7672     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7673 }
7674
7675 /**
7676  * gtk_tree_view_set_fixed_height_mode:
7677  * @tree_view: a #GtkTreeView
7678  * @enable: %TRUE to enable fixed height mode
7679  *
7680  * Enables or disables the fixed height mode of @tree_view.
7681  * Fixed height mode speeds up #GtkTreeView by assuming that all
7682  * rows have the same height.
7683  * Only enable this option if all rows are the same height and all
7684  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7685  *
7686  * Since: 2.6
7687  **/
7688 void
7689 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7690                                      gboolean     enable)
7691 {
7692   GList *l;
7693
7694   enable = enable != FALSE;
7695
7696   if (enable == tree_view->priv->fixed_height_mode)
7697     return;
7698
7699   if (!enable)
7700     {
7701       tree_view->priv->fixed_height_mode = 0;
7702       tree_view->priv->fixed_height = -1;
7703
7704       /* force a revalidation */
7705       install_presize_handler (tree_view);
7706     }
7707   else
7708     {
7709       /* make sure all columns are of type FIXED */
7710       for (l = tree_view->priv->columns; l; l = l->next)
7711         {
7712           GtkTreeViewColumn *c = l->data;
7713
7714           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7715         }
7716
7717       /* yes, we really have to do this is in a separate loop */
7718       for (l = tree_view->priv->columns; l; l = l->next)
7719         g_signal_connect (l->data, "notify::sizing",
7720                           G_CALLBACK (column_sizing_notify), tree_view);
7721
7722       tree_view->priv->fixed_height_mode = 1;
7723       tree_view->priv->fixed_height = -1;
7724
7725       if (tree_view->priv->tree)
7726         initialize_fixed_height_mode (tree_view);
7727     }
7728
7729   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7730 }
7731
7732 /**
7733  * gtk_tree_view_get_fixed_height_mode:
7734  * @tree_view: a #GtkTreeView
7735  *
7736  * Returns whether fixed height mode is turned on for @tree_view.
7737  *
7738  * Return value: %TRUE if @tree_view is in fixed height mode
7739  *
7740  * Since: 2.6
7741  **/
7742 gboolean
7743 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7744 {
7745   return tree_view->priv->fixed_height_mode;
7746 }
7747
7748 /* Returns TRUE if the focus is within the headers, after the focus operation is
7749  * done
7750  */
7751 static gboolean
7752 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7753                             GtkDirectionType  dir,
7754                             gboolean          clamp_column_visible)
7755 {
7756   GtkWidget *focus_child;
7757
7758   GList *last_column, *first_column;
7759   GList *tmp_list;
7760   gboolean rtl;
7761
7762   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7763     return FALSE;
7764
7765   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7766
7767   first_column = tree_view->priv->columns;
7768   while (first_column)
7769     {
7770       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7771           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7772           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7773            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7774         break;
7775       first_column = first_column->next;
7776     }
7777
7778   /* No headers are visible, or are focusable.  We can't focus in or out.
7779    */
7780   if (first_column == NULL)
7781     return FALSE;
7782
7783   last_column = g_list_last (tree_view->priv->columns);
7784   while (last_column)
7785     {
7786       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7787           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7788           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7789            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7790         break;
7791       last_column = last_column->prev;
7792     }
7793
7794
7795   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7796
7797   switch (dir)
7798     {
7799     case GTK_DIR_TAB_BACKWARD:
7800     case GTK_DIR_TAB_FORWARD:
7801     case GTK_DIR_UP:
7802     case GTK_DIR_DOWN:
7803       if (focus_child == NULL)
7804         {
7805           if (tree_view->priv->focus_column != NULL && GTK_WIDGET_CAN_FOCUS (tree_view->priv->focus_column->button))
7806             focus_child = tree_view->priv->focus_column->button;
7807           else
7808             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7809           gtk_widget_grab_focus (focus_child);
7810           break;
7811         }
7812       return FALSE;
7813
7814     case GTK_DIR_LEFT:
7815     case GTK_DIR_RIGHT:
7816       if (focus_child == NULL)
7817         {
7818           if (tree_view->priv->focus_column != NULL)
7819             focus_child = tree_view->priv->focus_column->button;
7820           else if (dir == GTK_DIR_LEFT)
7821             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7822           else
7823             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7824           gtk_widget_grab_focus (focus_child);
7825           break;
7826         }
7827
7828       if (gtk_widget_child_focus (focus_child, dir))
7829         {
7830           /* The focus moves inside the button. */
7831           /* This is probably a great example of bad UI */
7832           break;
7833         }
7834
7835       /* We need to move the focus among the row of buttons. */
7836       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7837         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7838           break;
7839
7840       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7841           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7842         {
7843           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7844           break;
7845         }
7846
7847       while (tmp_list)
7848         {
7849           GtkTreeViewColumn *column;
7850
7851           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7852             tmp_list = tmp_list->next;
7853           else
7854             tmp_list = tmp_list->prev;
7855
7856           if (tmp_list == NULL)
7857             {
7858               g_warning ("Internal button not found");
7859               break;
7860             }
7861           column = tmp_list->data;
7862           if (column->button &&
7863               column->visible &&
7864               GTK_WIDGET_CAN_FOCUS (column->button))
7865             {
7866               focus_child = column->button;
7867               gtk_widget_grab_focus (column->button);
7868               break;
7869             }
7870         }
7871       break;
7872     default:
7873       g_assert_not_reached ();
7874       break;
7875     }
7876
7877   /* if focus child is non-null, we assume it's been set to the current focus child
7878    */
7879   if (focus_child)
7880     {
7881       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7882         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7883           {
7884             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7885             break;
7886           }
7887
7888       if (clamp_column_visible)
7889         {
7890           gtk_tree_view_clamp_column_visible (tree_view,
7891                                               tree_view->priv->focus_column,
7892                                               FALSE);
7893         }
7894     }
7895
7896   return (focus_child != NULL);
7897 }
7898
7899 /* This function returns in 'path' the first focusable path, if the given path
7900  * is already focusable, it's the returned one.
7901  */
7902 static gboolean
7903 search_first_focusable_path (GtkTreeView  *tree_view,
7904                              GtkTreePath **path,
7905                              gboolean      search_forward,
7906                              GtkRBTree   **new_tree,
7907                              GtkRBNode   **new_node)
7908 {
7909   GtkRBTree *tree = NULL;
7910   GtkRBNode *node = NULL;
7911
7912   if (!path || !*path)
7913     return FALSE;
7914
7915   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7916
7917   if (!tree || !node)
7918     return FALSE;
7919
7920   while (node && row_is_separator (tree_view, NULL, *path))
7921     {
7922       if (search_forward)
7923         _gtk_rbtree_next_full (tree, node, &tree, &node);
7924       else
7925         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7926
7927       if (*path)
7928         gtk_tree_path_free (*path);
7929
7930       if (node)
7931         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7932       else
7933         *path = NULL;
7934     }
7935
7936   if (new_tree)
7937     *new_tree = tree;
7938
7939   if (new_node)
7940     *new_node = node;
7941
7942   return (*path != NULL);
7943 }
7944
7945 static gint
7946 gtk_tree_view_focus (GtkWidget        *widget,
7947                      GtkDirectionType  direction)
7948 {
7949   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7950   GtkContainer *container = GTK_CONTAINER (widget);
7951   GtkWidget *focus_child;
7952
7953   if (!GTK_WIDGET_IS_SENSITIVE (container) || !GTK_WIDGET_CAN_FOCUS (widget))
7954     return FALSE;
7955
7956   focus_child = container->focus_child;
7957
7958   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7959   /* Case 1.  Headers currently have focus. */
7960   if (focus_child)
7961     {
7962       switch (direction)
7963         {
7964         case GTK_DIR_LEFT:
7965         case GTK_DIR_RIGHT:
7966           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7967           return TRUE;
7968         case GTK_DIR_TAB_BACKWARD:
7969         case GTK_DIR_UP:
7970           return FALSE;
7971         case GTK_DIR_TAB_FORWARD:
7972         case GTK_DIR_DOWN:
7973           gtk_widget_grab_focus (widget);
7974           return TRUE;
7975         default:
7976           g_assert_not_reached ();
7977           return FALSE;
7978         }
7979     }
7980
7981   /* Case 2. We don't have focus at all. */
7982   if (!GTK_WIDGET_HAS_FOCUS (container))
7983     {
7984       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7985         gtk_widget_grab_focus (widget);
7986       return TRUE;
7987     }
7988
7989   /* Case 3. We have focus already. */
7990   if (direction == GTK_DIR_TAB_BACKWARD)
7991     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7992   else if (direction == GTK_DIR_TAB_FORWARD)
7993     return FALSE;
7994
7995   /* Other directions caught by the keybindings */
7996   gtk_widget_grab_focus (widget);
7997   return TRUE;
7998 }
7999
8000 static void
8001 gtk_tree_view_grab_focus (GtkWidget *widget)
8002 {
8003   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
8004
8005   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
8006 }
8007
8008 static void
8009 gtk_tree_view_style_set (GtkWidget *widget,
8010                          GtkStyle *previous_style)
8011 {
8012   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
8013   GList *list;
8014   GtkTreeViewColumn *column;
8015
8016   if (GTK_WIDGET_REALIZED (widget))
8017     {
8018       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
8019       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
8020       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
8021
8022       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
8023       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
8024     }
8025
8026   gtk_widget_style_get (widget,
8027                         "expander-size", &tree_view->priv->expander_size,
8028                         NULL);
8029   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
8030
8031   for (list = tree_view->priv->columns; list; list = list->next)
8032     {
8033       column = list->data;
8034       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8035     }
8036
8037   tree_view->priv->fixed_height = -1;
8038   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
8039
8040   gtk_widget_queue_resize (widget);
8041 }
8042
8043
8044 static void
8045 gtk_tree_view_set_focus_child (GtkContainer *container,
8046                                GtkWidget    *child)
8047 {
8048   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
8049   GList *list;
8050
8051   for (list = tree_view->priv->columns; list; list = list->next)
8052     {
8053       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
8054         {
8055           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
8056           break;
8057         }
8058     }
8059
8060   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
8061 }
8062
8063 static void
8064 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
8065                                GtkAdjustment *hadj,
8066                                GtkAdjustment *vadj)
8067 {
8068   gboolean need_adjust = FALSE;
8069
8070   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8071
8072   if (hadj)
8073     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8074   else
8075     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8076   if (vadj)
8077     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8078   else
8079     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8080
8081   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8082     {
8083       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8084                                             gtk_tree_view_adjustment_changed,
8085                                             tree_view);
8086       g_object_unref (tree_view->priv->hadjustment);
8087     }
8088
8089   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8090     {
8091       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8092                                             gtk_tree_view_adjustment_changed,
8093                                             tree_view);
8094       g_object_unref (tree_view->priv->vadjustment);
8095     }
8096
8097   if (tree_view->priv->hadjustment != hadj)
8098     {
8099       tree_view->priv->hadjustment = hadj;
8100       g_object_ref_sink (tree_view->priv->hadjustment);
8101
8102       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8103                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8104                         tree_view);
8105       need_adjust = TRUE;
8106     }
8107
8108   if (tree_view->priv->vadjustment != vadj)
8109     {
8110       tree_view->priv->vadjustment = vadj;
8111       g_object_ref_sink (tree_view->priv->vadjustment);
8112
8113       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8114                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8115                         tree_view);
8116       need_adjust = TRUE;
8117     }
8118
8119   if (need_adjust)
8120     gtk_tree_view_adjustment_changed (NULL, tree_view);
8121 }
8122
8123
8124 static gboolean
8125 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8126                                 GtkMovementStep    step,
8127                                 gint               count)
8128 {
8129   GdkModifierType state;
8130
8131   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8132   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8133                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8134                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8135                         step == GTK_MOVEMENT_PAGES ||
8136                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8137
8138   if (tree_view->priv->tree == NULL)
8139     return FALSE;
8140   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8141     return FALSE;
8142
8143   gtk_tree_view_stop_editing (tree_view, FALSE);
8144   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8145   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8146
8147   if (gtk_get_current_event_state (&state))
8148     {
8149       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8150         tree_view->priv->ctrl_pressed = TRUE;
8151       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8152         tree_view->priv->shift_pressed = TRUE;
8153     }
8154   /* else we assume not pressed */
8155
8156   switch (step)
8157     {
8158       /* currently we make no distinction.  When we go bi-di, we need to */
8159     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8160     case GTK_MOVEMENT_VISUAL_POSITIONS:
8161       gtk_tree_view_move_cursor_left_right (tree_view, count);
8162       break;
8163     case GTK_MOVEMENT_DISPLAY_LINES:
8164       gtk_tree_view_move_cursor_up_down (tree_view, count);
8165       break;
8166     case GTK_MOVEMENT_PAGES:
8167       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8168       break;
8169     case GTK_MOVEMENT_BUFFER_ENDS:
8170       gtk_tree_view_move_cursor_start_end (tree_view, count);
8171       break;
8172     default:
8173       g_assert_not_reached ();
8174     }
8175
8176   tree_view->priv->ctrl_pressed = FALSE;
8177   tree_view->priv->shift_pressed = FALSE;
8178
8179   return TRUE;
8180 }
8181
8182 static void
8183 gtk_tree_view_put (GtkTreeView *tree_view,
8184                    GtkWidget   *child_widget,
8185                    /* in bin_window coordinates */
8186                    gint         x,
8187                    gint         y,
8188                    gint         width,
8189                    gint         height)
8190 {
8191   GtkTreeViewChild *child;
8192
8193   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8194   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8195
8196   child = g_slice_new (GtkTreeViewChild);
8197
8198   child->widget = child_widget;
8199   child->x = x;
8200   child->y = y;
8201   child->width = width;
8202   child->height = height;
8203
8204   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8205
8206   if (GTK_WIDGET_REALIZED (tree_view))
8207     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8208
8209   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8210 }
8211
8212 void
8213 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8214                                   GtkWidget   *widget,
8215                                   /* in tree coordinates */
8216                                   gint         x,
8217                                   gint         y,
8218                                   gint         width,
8219                                   gint         height)
8220 {
8221   GtkTreeViewChild *child = NULL;
8222   GList *list;
8223   GdkRectangle allocation;
8224
8225   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8226   g_return_if_fail (GTK_IS_WIDGET (widget));
8227
8228   for (list = tree_view->priv->children; list; list = list->next)
8229     {
8230       if (((GtkTreeViewChild *)list->data)->widget == widget)
8231         {
8232           child = list->data;
8233           break;
8234         }
8235     }
8236   if (child == NULL)
8237     return;
8238
8239   allocation.x = child->x = x;
8240   allocation.y = child->y = y;
8241   allocation.width = child->width = width;
8242   allocation.height = child->height = height;
8243
8244   if (GTK_WIDGET_REALIZED (widget))
8245     gtk_widget_size_allocate (widget, &allocation);
8246 }
8247
8248
8249 /* TreeModel Callbacks
8250  */
8251
8252 static void
8253 gtk_tree_view_row_changed (GtkTreeModel *model,
8254                            GtkTreePath  *path,
8255                            GtkTreeIter  *iter,
8256                            gpointer      data)
8257 {
8258   GtkTreeView *tree_view = (GtkTreeView *)data;
8259   GtkRBTree *tree;
8260   GtkRBNode *node;
8261   gboolean free_path = FALSE;
8262   GList *list;
8263   GtkTreePath *cursor_path;
8264
8265   g_return_if_fail (path != NULL || iter != NULL);
8266
8267   if (tree_view->priv->cursor != NULL)
8268     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8269   else
8270     cursor_path = NULL;
8271
8272   if (tree_view->priv->edited_column &&
8273       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8274     gtk_tree_view_stop_editing (tree_view, TRUE);
8275
8276   if (cursor_path != NULL)
8277     gtk_tree_path_free (cursor_path);
8278
8279   if (path == NULL)
8280     {
8281       path = gtk_tree_model_get_path (model, iter);
8282       free_path = TRUE;
8283     }
8284   else if (iter == NULL)
8285     gtk_tree_model_get_iter (model, iter, path);
8286
8287   if (_gtk_tree_view_find_node (tree_view,
8288                                 path,
8289                                 &tree,
8290                                 &node))
8291     /* We aren't actually showing the node */
8292     goto done;
8293
8294   if (tree == NULL)
8295     goto done;
8296
8297   if (tree_view->priv->fixed_height_mode
8298       && tree_view->priv->fixed_height >= 0)
8299     {
8300       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8301       if (GTK_WIDGET_REALIZED (tree_view))
8302         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8303     }
8304   else
8305     {
8306       _gtk_rbtree_node_mark_invalid (tree, node);
8307       for (list = tree_view->priv->columns; list; list = list->next)
8308         {
8309           GtkTreeViewColumn *column;
8310
8311           column = list->data;
8312           if (! column->visible)
8313             continue;
8314
8315           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8316             {
8317               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8318             }
8319         }
8320     }
8321
8322  done:
8323   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8324     install_presize_handler (tree_view);
8325   if (free_path)
8326     gtk_tree_path_free (path);
8327 }
8328
8329 static void
8330 gtk_tree_view_row_inserted (GtkTreeModel *model,
8331                             GtkTreePath  *path,
8332                             GtkTreeIter  *iter,
8333                             gpointer      data)
8334 {
8335   GtkTreeView *tree_view = (GtkTreeView *) data;
8336   gint *indices;
8337   GtkRBTree *tmptree, *tree;
8338   GtkRBNode *tmpnode = NULL;
8339   gint depth;
8340   gint i = 0;
8341   gint height;
8342   gboolean free_path = FALSE;
8343   gboolean node_visible = TRUE;
8344
8345   g_return_if_fail (path != NULL || iter != NULL);
8346
8347   if (tree_view->priv->fixed_height_mode
8348       && tree_view->priv->fixed_height >= 0)
8349     height = tree_view->priv->fixed_height;
8350   else
8351     height = 0;
8352
8353   if (path == NULL)
8354     {
8355       path = gtk_tree_model_get_path (model, iter);
8356       free_path = TRUE;
8357     }
8358   else if (iter == NULL)
8359     gtk_tree_model_get_iter (model, iter, path);
8360
8361   if (tree_view->priv->tree == NULL)
8362     tree_view->priv->tree = _gtk_rbtree_new ();
8363
8364   tmptree = tree = tree_view->priv->tree;
8365
8366   /* Update all row-references */
8367   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8368   depth = gtk_tree_path_get_depth (path);
8369   indices = gtk_tree_path_get_indices (path);
8370
8371   /* First, find the parent tree */
8372   while (i < depth - 1)
8373     {
8374       if (tmptree == NULL)
8375         {
8376           /* We aren't showing the node */
8377           node_visible = FALSE;
8378           goto done;
8379         }
8380
8381       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8382       if (tmpnode == NULL)
8383         {
8384           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8385                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8386                      "before the parent was inserted.");
8387           goto done;
8388         }
8389       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8390         {
8391           /* FIXME enforce correct behavior on model, probably */
8392           /* In theory, the model should have emitted has_child_toggled here.  We
8393            * try to catch it anyway, just to be safe, in case the model hasn't.
8394            */
8395           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8396                                                            tree,
8397                                                            tmpnode);
8398           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8399           gtk_tree_path_free (tmppath);
8400           goto done;
8401         }
8402
8403       tmptree = tmpnode->children;
8404       tree = tmptree;
8405       i++;
8406     }
8407
8408   if (tree == NULL)
8409     {
8410       node_visible = FALSE;
8411       goto done;
8412     }
8413
8414   /* ref the node */
8415   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8416   if (indices[depth - 1] == 0)
8417     {
8418       tmpnode = _gtk_rbtree_find_count (tree, 1);
8419       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8420     }
8421   else
8422     {
8423       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8424       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8425     }
8426
8427  done:
8428   if (height > 0)
8429     {
8430       if (tree)
8431         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8432
8433       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8434         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8435       else
8436         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8437     }
8438   else
8439     install_presize_handler (tree_view);
8440   if (free_path)
8441     gtk_tree_path_free (path);
8442 }
8443
8444 static void
8445 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8446                                      GtkTreePath  *path,
8447                                      GtkTreeIter  *iter,
8448                                      gpointer      data)
8449 {
8450   GtkTreeView *tree_view = (GtkTreeView *)data;
8451   GtkTreeIter real_iter;
8452   gboolean has_child;
8453   GtkRBTree *tree;
8454   GtkRBNode *node;
8455   gboolean free_path = FALSE;
8456
8457   g_return_if_fail (path != NULL || iter != NULL);
8458
8459   if (iter)
8460     real_iter = *iter;
8461
8462   if (path == NULL)
8463     {
8464       path = gtk_tree_model_get_path (model, iter);
8465       free_path = TRUE;
8466     }
8467   else if (iter == NULL)
8468     gtk_tree_model_get_iter (model, &real_iter, path);
8469
8470   if (_gtk_tree_view_find_node (tree_view,
8471                                 path,
8472                                 &tree,
8473                                 &node))
8474     /* We aren't actually showing the node */
8475     goto done;
8476
8477   if (tree == NULL)
8478     goto done;
8479
8480   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8481   /* Sanity check.
8482    */
8483   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8484     goto done;
8485
8486   if (has_child)
8487     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8488   else
8489     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8490
8491   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8492     {
8493       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8494       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8495         {
8496           GList *list;
8497
8498           for (list = tree_view->priv->columns; list; list = list->next)
8499             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8500               {
8501                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8502                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8503                 break;
8504               }
8505         }
8506       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8507     }
8508   else
8509     {
8510       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8511     }
8512
8513  done:
8514   if (free_path)
8515     gtk_tree_path_free (path);
8516 }
8517
8518 static void
8519 count_children_helper (GtkRBTree *tree,
8520                        GtkRBNode *node,
8521                        gpointer   data)
8522 {
8523   if (node->children)
8524     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8525   (*((gint *)data))++;
8526 }
8527
8528 static void
8529 check_selection_helper (GtkRBTree *tree,
8530                         GtkRBNode *node,
8531                         gpointer   data)
8532 {
8533   gint *value = (gint *)data;
8534
8535   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8536
8537   if (node->children && !*value)
8538     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8539 }
8540
8541 static void
8542 gtk_tree_view_row_deleted (GtkTreeModel *model,
8543                            GtkTreePath  *path,
8544                            gpointer      data)
8545 {
8546   GtkTreeView *tree_view = (GtkTreeView *)data;
8547   GtkRBTree *tree;
8548   GtkRBNode *node;
8549   GList *list;
8550   gint selection_changed = FALSE;
8551
8552   g_return_if_fail (path != NULL);
8553
8554   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8555
8556   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8557     return;
8558
8559   if (tree == NULL)
8560     return;
8561
8562   /* check if the selection has been changed */
8563   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8564                         check_selection_helper, &selection_changed);
8565
8566   for (list = tree_view->priv->columns; list; list = list->next)
8567     if (((GtkTreeViewColumn *)list->data)->visible &&
8568         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8569       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8570
8571   /* Ensure we don't have a dangling pointer to a dead node */
8572   ensure_unprelighted (tree_view);
8573
8574   /* Cancel editting if we've started */
8575   gtk_tree_view_stop_editing (tree_view, TRUE);
8576
8577   /* If we have a node expanded/collapsed timeout, remove it */
8578   remove_expand_collapse_timeout (tree_view);
8579
8580   if (tree_view->priv->destroy_count_func)
8581     {
8582       gint child_count = 0;
8583       if (node->children)
8584         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8585       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8586     }
8587
8588   if (tree->root->count == 1)
8589     {
8590       if (tree_view->priv->tree == tree)
8591         tree_view->priv->tree = NULL;
8592
8593       _gtk_rbtree_remove (tree);
8594     }
8595   else
8596     {
8597       _gtk_rbtree_remove_node (tree, node);
8598     }
8599
8600   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8601     {
8602       gtk_tree_row_reference_free (tree_view->priv->top_row);
8603       tree_view->priv->top_row = NULL;
8604     }
8605
8606   install_scroll_sync_handler (tree_view);
8607
8608   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8609
8610   if (selection_changed)
8611     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8612 }
8613
8614 static void
8615 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8616                               GtkTreePath  *parent,
8617                               GtkTreeIter  *iter,
8618                               gint         *new_order,
8619                               gpointer      data)
8620 {
8621   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8622   GtkRBTree *tree;
8623   GtkRBNode *node;
8624   gint len;
8625
8626   len = gtk_tree_model_iter_n_children (model, iter);
8627
8628   if (len < 2)
8629     return;
8630
8631   gtk_tree_row_reference_reordered (G_OBJECT (data),
8632                                     parent,
8633                                     iter,
8634                                     new_order);
8635
8636   if (_gtk_tree_view_find_node (tree_view,
8637                                 parent,
8638                                 &tree,
8639                                 &node))
8640     return;
8641
8642   /* We need to special case the parent path */
8643   if (tree == NULL)
8644     tree = tree_view->priv->tree;
8645   else
8646     tree = node->children;
8647
8648   if (tree == NULL)
8649     return;
8650
8651   if (tree_view->priv->edited_column)
8652     gtk_tree_view_stop_editing (tree_view, TRUE);
8653
8654   /* we need to be unprelighted */
8655   ensure_unprelighted (tree_view);
8656
8657   /* clear the timeout */
8658   cancel_arrow_animation (tree_view);
8659
8660   _gtk_rbtree_reorder (tree, new_order, len);
8661
8662   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8663
8664   gtk_tree_view_dy_to_top_row (tree_view);
8665 }
8666
8667
8668 /* Internal tree functions
8669  */
8670
8671
8672 static void
8673 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8674                                      GtkRBTree         *tree,
8675                                      GtkTreeViewColumn *column,
8676                                      gint              *x1,
8677                                      gint              *x2)
8678 {
8679   GtkTreeViewColumn *tmp_column = NULL;
8680   gint total_width;
8681   GList *list;
8682   gboolean rtl;
8683
8684   if (x1)
8685     *x1 = 0;
8686
8687   if (x2)
8688     *x2 = 0;
8689
8690   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8691
8692   total_width = 0;
8693   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8694        list;
8695        list = (rtl ? list->prev : list->next))
8696     {
8697       tmp_column = list->data;
8698
8699       if (tmp_column == column)
8700         break;
8701
8702       if (tmp_column->visible)
8703         total_width += tmp_column->width;
8704     }
8705
8706   if (tmp_column != column)
8707     {
8708       g_warning (G_STRLOC": passed-in column isn't in the tree");
8709       return;
8710     }
8711
8712   if (x1)
8713     *x1 = total_width;
8714
8715   if (x2)
8716     {
8717       if (column->visible)
8718         *x2 = total_width + column->width;
8719       else
8720         *x2 = total_width; /* width of 0 */
8721     }
8722 }
8723 static void
8724 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8725                                 GtkRBTree   *tree,
8726                                 gint        *x1,
8727                                 gint        *x2)
8728 {
8729   gint x_offset = 0;
8730   GList *list;
8731   GtkTreeViewColumn *tmp_column = NULL;
8732   gint total_width;
8733   gboolean indent_expanders;
8734   gboolean rtl;
8735
8736   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8737
8738   total_width = 0;
8739   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8740        list;
8741        list = (rtl ? list->prev : list->next))
8742     {
8743       tmp_column = list->data;
8744
8745       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8746         {
8747           if (rtl)
8748             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8749           else
8750             x_offset = total_width;
8751           break;
8752         }
8753
8754       if (tmp_column->visible)
8755         total_width += tmp_column->width;
8756     }
8757
8758   gtk_widget_style_get (GTK_WIDGET (tree_view),
8759                         "indent-expanders", &indent_expanders,
8760                         NULL);
8761
8762   if (indent_expanders)
8763     {
8764       if (rtl)
8765         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8766       else
8767         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8768     }
8769
8770   *x1 = x_offset;
8771
8772   if (tmp_column && tmp_column->visible)
8773     /* +1 because x2 isn't included in the range. */
8774     *x2 = *x1 + tree_view->priv->expander_size + 1;
8775   else
8776     *x2 = *x1;
8777 }
8778
8779 static void
8780 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8781                           GtkRBTree   *tree,
8782                           GtkTreeIter *iter,
8783                           gint         depth,
8784                           gboolean     recurse)
8785 {
8786   GtkRBNode *temp = NULL;
8787   GtkTreePath *path = NULL;
8788   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8789
8790   do
8791     {
8792       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8793       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8794
8795       if (tree_view->priv->fixed_height > 0)
8796         {
8797           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8798             {
8799               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8800               _gtk_rbtree_node_mark_valid (tree, temp);
8801             }
8802         }
8803
8804       if (is_list)
8805         continue;
8806
8807       if (recurse)
8808         {
8809           GtkTreeIter child;
8810
8811           if (!path)
8812             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8813           else
8814             gtk_tree_path_next (path);
8815
8816           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8817             {
8818               gboolean expand;
8819
8820               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8821
8822               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8823                   && !expand)
8824                 {
8825                   temp->children = _gtk_rbtree_new ();
8826                   temp->children->parent_tree = tree;
8827                   temp->children->parent_node = temp;
8828                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8829                 }
8830             }
8831         }
8832
8833       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8834         {
8835           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8836             temp->flags ^= GTK_RBNODE_IS_PARENT;
8837         }
8838     }
8839   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8840
8841   if (path)
8842     gtk_tree_path_free (path);
8843 }
8844
8845 /* Make sure the node is visible vertically */
8846 static void
8847 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8848                                   GtkRBTree   *tree,
8849                                   GtkRBNode   *node)
8850 {
8851   gint node_dy, height;
8852   GtkTreePath *path = NULL;
8853
8854   if (!GTK_WIDGET_REALIZED (tree_view))
8855     return;
8856
8857   /* just return if the node is visible, avoiding a costly expose */
8858   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8859   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8860   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8861       && node_dy >= tree_view->priv->vadjustment->value
8862       && node_dy + height <= (tree_view->priv->vadjustment->value
8863                               + tree_view->priv->vadjustment->page_size))
8864     return;
8865
8866   path = _gtk_tree_view_find_path (tree_view, tree, node);
8867   if (path)
8868     {
8869       /* We process updates because we want to clear old selected items when we scroll.
8870        * if this is removed, we get a "selection streak" at the bottom. */
8871       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8872       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8873       gtk_tree_path_free (path);
8874     }
8875 }
8876
8877 static void
8878 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8879                                     GtkTreeViewColumn *column,
8880                                     gboolean           focus_to_cell)
8881 {
8882   gint x, width;
8883
8884   if (column == NULL)
8885     return;
8886
8887   x = column->button->allocation.x;
8888   width = column->button->allocation.width;
8889
8890   if (width > tree_view->priv->hadjustment->page_size)
8891     {
8892       /* The column is larger than the horizontal page size.  If the
8893        * column has cells which can be focussed individually, then we make
8894        * sure the cell which gets focus is fully visible (if even the
8895        * focus cell is bigger than the page size, we make sure the
8896        * left-hand side of the cell is visible).
8897        *
8898        * If the column does not have those so-called special cells, we
8899        * make sure the left-hand side of the column is visible.
8900        */
8901
8902       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8903         {
8904           GtkTreePath *cursor_path;
8905           GdkRectangle background_area, cell_area, focus_area;
8906
8907           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8908
8909           gtk_tree_view_get_cell_area (tree_view,
8910                                        cursor_path, column, &cell_area);
8911           gtk_tree_view_get_background_area (tree_view,
8912                                              cursor_path, column,
8913                                              &background_area);
8914
8915           gtk_tree_path_free (cursor_path);
8916
8917           _gtk_tree_view_column_get_focus_area (column,
8918                                                 &background_area,
8919                                                 &cell_area,
8920                                                 &focus_area);
8921
8922           x = focus_area.x;
8923           width = focus_area.width;
8924
8925           if (width < tree_view->priv->hadjustment->page_size)
8926             {
8927               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8928                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8929                                           x + width - tree_view->priv->hadjustment->page_size);
8930               else if (tree_view->priv->hadjustment->value > x)
8931                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8932             }
8933         }
8934
8935       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8936                                 CLAMP (x,
8937                                        tree_view->priv->hadjustment->lower,
8938                                        tree_view->priv->hadjustment->upper
8939                                        - tree_view->priv->hadjustment->page_size));
8940     }
8941   else
8942     {
8943       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8944           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8945                                     x + width - tree_view->priv->hadjustment->page_size);
8946       else if (tree_view->priv->hadjustment->value > x)
8947         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8948   }
8949 }
8950
8951 /* This function could be more efficient.  I'll optimize it if profiling seems
8952  * to imply that it is important */
8953 GtkTreePath *
8954 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8955                           GtkRBTree   *tree,
8956                           GtkRBNode   *node)
8957 {
8958   GtkTreePath *path;
8959   GtkRBTree *tmp_tree;
8960   GtkRBNode *tmp_node, *last;
8961   gint count;
8962
8963   path = gtk_tree_path_new ();
8964
8965   g_return_val_if_fail (node != NULL, path);
8966   g_return_val_if_fail (node != tree->nil, path);
8967
8968   count = 1 + node->left->count;
8969
8970   last = node;
8971   tmp_node = node->parent;
8972   tmp_tree = tree;
8973   while (tmp_tree)
8974     {
8975       while (tmp_node != tmp_tree->nil)
8976         {
8977           if (tmp_node->right == last)
8978             count += 1 + tmp_node->left->count;
8979           last = tmp_node;
8980           tmp_node = tmp_node->parent;
8981         }
8982       gtk_tree_path_prepend_index (path, count - 1);
8983       last = tmp_tree->parent_node;
8984       tmp_tree = tmp_tree->parent_tree;
8985       if (last)
8986         {
8987           count = 1 + last->left->count;
8988           tmp_node = last->parent;
8989         }
8990     }
8991   return path;
8992 }
8993
8994 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8995  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8996  * both set to NULL.
8997  */
8998 gboolean
8999 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
9000                           GtkTreePath  *path,
9001                           GtkRBTree   **tree,
9002                           GtkRBNode   **node)
9003 {
9004   GtkRBNode *tmpnode = NULL;
9005   GtkRBTree *tmptree = tree_view->priv->tree;
9006   gint *indices = gtk_tree_path_get_indices (path);
9007   gint depth = gtk_tree_path_get_depth (path);
9008   gint i = 0;
9009
9010   *node = NULL;
9011   *tree = NULL;
9012
9013   if (depth == 0 || tmptree == NULL)
9014     return FALSE;
9015   do
9016     {
9017       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
9018       ++i;
9019       if (tmpnode == NULL)
9020         {
9021           *tree = NULL;
9022           *node = NULL;
9023           return FALSE;
9024         }
9025       if (i >= depth)
9026         {
9027           *tree = tmptree;
9028           *node = tmpnode;
9029           return FALSE;
9030         }
9031       *tree = tmptree;
9032       *node = tmpnode;
9033       tmptree = tmpnode->children;
9034       if (tmptree == NULL)
9035         return TRUE;
9036     }
9037   while (1);
9038 }
9039
9040 static gboolean
9041 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
9042                                   GtkTreeViewColumn *column)
9043 {
9044   GList *list;
9045
9046   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
9047     return FALSE;
9048
9049   if (tree_view->priv->expander_column != NULL)
9050     {
9051       if (tree_view->priv->expander_column == column)
9052         return TRUE;
9053       return FALSE;
9054     }
9055   else
9056     {
9057       for (list = tree_view->priv->columns;
9058            list;
9059            list = list->next)
9060         if (((GtkTreeViewColumn *)list->data)->visible)
9061           break;
9062       if (list && list->data == column)
9063         return TRUE;
9064     }
9065   return FALSE;
9066 }
9067
9068 static void
9069 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
9070                                 guint           keyval,
9071                                 guint           modmask,
9072                                 gboolean        add_shifted_binding,
9073                                 GtkMovementStep step,
9074                                 gint            count)
9075 {
9076
9077   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9078                                 "move-cursor", 2,
9079                                 G_TYPE_ENUM, step,
9080                                 G_TYPE_INT, count);
9081
9082   if (add_shifted_binding)
9083     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9084                                   "move-cursor", 2,
9085                                   G_TYPE_ENUM, step,
9086                                   G_TYPE_INT, count);
9087
9088   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9089    return;
9090
9091   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9092                                 "move-cursor", 2,
9093                                 G_TYPE_ENUM, step,
9094                                 G_TYPE_INT, count);
9095
9096   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9097                                 "move-cursor", 2,
9098                                 G_TYPE_ENUM, step,
9099                                 G_TYPE_INT, count);
9100 }
9101
9102 static gint
9103 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9104                                  GtkTreeIter  *iter,
9105                                  GtkRBTree    *tree,
9106                                  GtkRBNode    *node)
9107 {
9108   gint retval = FALSE;
9109   do
9110     {
9111       g_return_val_if_fail (node != NULL, FALSE);
9112
9113       if (node->children)
9114         {
9115           GtkTreeIter child;
9116           GtkRBTree *new_tree;
9117           GtkRBNode *new_node;
9118
9119           new_tree = node->children;
9120           new_node = new_tree->root;
9121
9122           while (new_node && new_node->left != new_tree->nil)
9123             new_node = new_node->left;
9124
9125           if (!gtk_tree_model_iter_children (model, &child, iter))
9126             return FALSE;
9127
9128           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9129         }
9130
9131       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9132         retval = TRUE;
9133       gtk_tree_model_unref_node (model, iter);
9134       node = _gtk_rbtree_next (tree, node);
9135     }
9136   while (gtk_tree_model_iter_next (model, iter));
9137
9138   return retval;
9139 }
9140
9141 static gint
9142 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9143                                               GtkRBTree   *tree)
9144 {
9145   GtkTreeIter iter;
9146   GtkTreePath *path;
9147   GtkRBNode *node;
9148   gint retval;
9149
9150   if (!tree)
9151     return FALSE;
9152
9153   node = tree->root;
9154   while (node && node->left != tree->nil)
9155     node = node->left;
9156
9157   g_return_val_if_fail (node != NULL, FALSE);
9158   path = _gtk_tree_view_find_path (tree_view, tree, node);
9159   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9160                            &iter, path);
9161   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9162   gtk_tree_path_free (path);
9163
9164   return retval;
9165 }
9166
9167 static void
9168 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9169                                     GtkTreeViewColumn *column)
9170 {
9171   GtkTreeViewColumn *left_column;
9172   GtkTreeViewColumn *cur_column = NULL;
9173   GtkTreeViewColumnReorder *reorder;
9174   gboolean rtl;
9175   GList *tmp_list;
9176   gint left;
9177
9178   /* We want to precalculate the motion list such that we know what column slots
9179    * are available.
9180    */
9181   left_column = NULL;
9182   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9183
9184   /* First, identify all possible drop spots */
9185   if (rtl)
9186     tmp_list = g_list_last (tree_view->priv->columns);
9187   else
9188     tmp_list = g_list_first (tree_view->priv->columns);
9189
9190   while (tmp_list)
9191     {
9192       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9193       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9194
9195       if (cur_column->visible == FALSE)
9196         continue;
9197
9198       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9199       if (left_column != column && cur_column != column &&
9200           tree_view->priv->column_drop_func &&
9201           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9202         {
9203           left_column = cur_column;
9204           continue;
9205         }
9206       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9207       reorder->left_column = left_column;
9208       left_column = reorder->right_column = cur_column;
9209
9210       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9211     }
9212
9213   /* Add the last one */
9214   if (tree_view->priv->column_drop_func == NULL ||
9215       ((left_column != column) &&
9216        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9217     {
9218       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9219       reorder->left_column = left_column;
9220       reorder->right_column = NULL;
9221       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9222     }
9223
9224   /* We quickly check to see if it even makes sense to reorder columns. */
9225   /* If there is nothing that can be moved, then we return */
9226
9227   if (tree_view->priv->column_drag_info == NULL)
9228     return;
9229
9230   /* We know there are always 2 slots possbile, as you can always return column. */
9231   /* If that's all there is, return */
9232   if (tree_view->priv->column_drag_info->next == NULL ||
9233       (tree_view->priv->column_drag_info->next->next == NULL &&
9234        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9235        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9236     {
9237       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9238         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9239       g_list_free (tree_view->priv->column_drag_info);
9240       tree_view->priv->column_drag_info = NULL;
9241       return;
9242     }
9243   /* We fill in the ranges for the columns, now that we've isolated them */
9244   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9245
9246   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9247     {
9248       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9249
9250       reorder->left_align = left;
9251       if (tmp_list->next != NULL)
9252         {
9253           g_assert (tmp_list->next->data);
9254           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9255                                          reorder->right_column->button->allocation.width +
9256                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9257         }
9258       else
9259         {
9260           gint width;
9261
9262           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9263           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9264         }
9265     }
9266 }
9267
9268 void
9269 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9270                                   GtkTreeViewColumn *column)
9271 {
9272   GdkEvent *send_event;
9273   GtkAllocation allocation;
9274   gint x, y, width, height;
9275   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9276   GdkDisplay *display = gdk_screen_get_display (screen);
9277
9278   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9279   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9280
9281   gtk_tree_view_set_column_drag_info (tree_view, column);
9282
9283   if (tree_view->priv->column_drag_info == NULL)
9284     return;
9285
9286   if (tree_view->priv->drag_window == NULL)
9287     {
9288       GdkWindowAttr attributes;
9289       guint attributes_mask;
9290
9291       attributes.window_type = GDK_WINDOW_CHILD;
9292       attributes.wclass = GDK_INPUT_OUTPUT;
9293       attributes.x = column->button->allocation.x;
9294       attributes.y = 0;
9295       attributes.width = column->button->allocation.width;
9296       attributes.height = column->button->allocation.height;
9297       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9298       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9299       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9300       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9301
9302       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9303                                                      &attributes,
9304                                                      attributes_mask);
9305       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9306     }
9307
9308   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9309   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9310
9311   gtk_grab_remove (column->button);
9312
9313   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9314   send_event->crossing.send_event = TRUE;
9315   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9316   send_event->crossing.subwindow = NULL;
9317   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9318   send_event->crossing.time = GDK_CURRENT_TIME;
9319
9320   gtk_propagate_event (column->button, send_event);
9321   gdk_event_free (send_event);
9322
9323   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9324   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9325   send_event->button.send_event = TRUE;
9326   send_event->button.time = GDK_CURRENT_TIME;
9327   send_event->button.x = -1;
9328   send_event->button.y = -1;
9329   send_event->button.axes = NULL;
9330   send_event->button.state = 0;
9331   send_event->button.button = 1;
9332   send_event->button.device = gdk_display_get_core_pointer (display);
9333   send_event->button.x_root = 0;
9334   send_event->button.y_root = 0;
9335
9336   gtk_propagate_event (column->button, send_event);
9337   gdk_event_free (send_event);
9338
9339   /* Kids, don't try this at home */
9340   g_object_ref (column->button);
9341   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9342   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9343   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9344   g_object_unref (column->button);
9345
9346   tree_view->priv->drag_column_x = column->button->allocation.x;
9347   allocation = column->button->allocation;
9348   allocation.x = 0;
9349   gtk_widget_size_allocate (column->button, &allocation);
9350   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9351
9352   tree_view->priv->drag_column = column;
9353   gdk_window_show (tree_view->priv->drag_window);
9354
9355   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9356   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9357
9358   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9359   while (gtk_events_pending ())
9360     gtk_main_iteration ();
9361
9362   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9363   gdk_pointer_grab (tree_view->priv->drag_window,
9364                     FALSE,
9365                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9366                     NULL, NULL, GDK_CURRENT_TIME);
9367   gdk_keyboard_grab (tree_view->priv->drag_window,
9368                      FALSE,
9369                      GDK_CURRENT_TIME);
9370 }
9371
9372 static void
9373 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9374                                 GtkRBTree          *tree,
9375                                 GtkRBNode          *node,
9376                                 const GdkRectangle *clip_rect)
9377 {
9378   GdkRectangle rect;
9379
9380   if (!GTK_WIDGET_REALIZED (tree_view))
9381     return;
9382
9383   rect.x = 0;
9384   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9385
9386   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9387   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9388
9389   if (clip_rect)
9390     {
9391       GdkRectangle new_rect;
9392
9393       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9394
9395       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9396     }
9397   else
9398     {
9399       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9400     }
9401 }
9402
9403 void
9404 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9405                                 GtkRBTree          *tree,
9406                                 GtkRBNode          *node,
9407                                 const GdkRectangle *clip_rect)
9408 {
9409   GdkRectangle rect;
9410
9411   if (!GTK_WIDGET_REALIZED (tree_view))
9412     return;
9413
9414   rect.x = 0;
9415   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9416
9417   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9418   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9419
9420   if (clip_rect)
9421     {
9422       GdkRectangle new_rect;
9423
9424       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9425
9426       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9427     }
9428   else
9429     {
9430       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9431     }
9432 }
9433
9434 static void
9435 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9436                                GtkTreePath        *path,
9437                                const GdkRectangle *clip_rect)
9438 {
9439   GtkRBTree *tree = NULL;
9440   GtkRBNode *node = NULL;
9441
9442   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9443
9444   if (tree)
9445     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9446 }
9447
9448 /* x and y are the mouse position
9449  */
9450 static void
9451 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9452                           GtkRBTree   *tree,
9453                           GtkRBNode   *node,
9454                           /* in bin_window coordinates */
9455                           gint         x,
9456                           gint         y)
9457 {
9458   GdkRectangle area;
9459   GtkStateType state;
9460   GtkWidget *widget;
9461   gint x_offset = 0;
9462   gint x2;
9463   gint vertical_separator;
9464   gint expander_size;
9465   GtkExpanderStyle expander_style;
9466
9467   gtk_widget_style_get (GTK_WIDGET (tree_view),
9468                         "vertical-separator", &vertical_separator,
9469                         NULL);
9470   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9471
9472   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9473     return;
9474
9475   widget = GTK_WIDGET (tree_view);
9476
9477   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9478
9479   area.x = x_offset;
9480   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9481   area.width = expander_size + 2;
9482   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9483
9484   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9485     {
9486       state = GTK_STATE_INSENSITIVE;
9487     }
9488   else if (node == tree_view->priv->button_pressed_node)
9489     {
9490       if (x >= area.x && x <= (area.x + area.width) &&
9491           y >= area.y && y <= (area.y + area.height))
9492         state = GTK_STATE_ACTIVE;
9493       else
9494         state = GTK_STATE_NORMAL;
9495     }
9496   else
9497     {
9498       if (node == tree_view->priv->prelight_node &&
9499           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9500         state = GTK_STATE_PRELIGHT;
9501       else
9502         state = GTK_STATE_NORMAL;
9503     }
9504
9505   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9506     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9507   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9508     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9509   else if (node->children != NULL)
9510     expander_style = GTK_EXPANDER_EXPANDED;
9511   else
9512     expander_style = GTK_EXPANDER_COLLAPSED;
9513
9514   gtk_paint_expander (widget->style,
9515                       tree_view->priv->bin_window,
9516                       state,
9517                       &area,
9518                       widget,
9519                       "treeview",
9520                       area.x + area.width / 2,
9521                       area.y + area.height / 2,
9522                       expander_style);
9523 }
9524
9525 static void
9526 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9527
9528 {
9529   GtkTreePath *cursor_path;
9530
9531   if ((tree_view->priv->tree == NULL) ||
9532       (! GTK_WIDGET_REALIZED (tree_view)))
9533     return;
9534
9535   cursor_path = NULL;
9536   if (tree_view->priv->cursor)
9537     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9538
9539   if (cursor_path == NULL)
9540     {
9541       /* Consult the selection before defaulting to the
9542        * first focusable element
9543        */
9544       GList *selected_rows;
9545       GtkTreeModel *model;
9546       GtkTreeSelection *selection;
9547
9548       selection = gtk_tree_view_get_selection (tree_view);
9549       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9550
9551       if (selected_rows)
9552         {
9553           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9554           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9555           g_list_free (selected_rows);
9556         }
9557       else
9558         {
9559           cursor_path = gtk_tree_path_new_first ();
9560           search_first_focusable_path (tree_view, &cursor_path,
9561                                        TRUE, NULL, NULL);
9562         }
9563
9564       gtk_tree_row_reference_free (tree_view->priv->cursor);
9565       tree_view->priv->cursor = NULL;
9566
9567       if (cursor_path)
9568         {
9569           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9570             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9571           else
9572             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9573         }
9574     }
9575
9576   if (cursor_path)
9577     {
9578       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9579
9580       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9581       gtk_tree_path_free (cursor_path);
9582
9583       if (tree_view->priv->focus_column == NULL)
9584         {
9585           GList *list;
9586           for (list = tree_view->priv->columns; list; list = list->next)
9587             {
9588               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9589                 {
9590                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9591                   break;
9592                 }
9593             }
9594         }
9595     }
9596 }
9597
9598 static void
9599 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9600                                    gint         count)
9601 {
9602   gint selection_count;
9603   GtkRBTree *cursor_tree = NULL;
9604   GtkRBNode *cursor_node = NULL;
9605   GtkRBTree *new_cursor_tree = NULL;
9606   GtkRBNode *new_cursor_node = NULL;
9607   GtkTreePath *cursor_path = NULL;
9608   gboolean grab_focus = TRUE;
9609   gboolean selectable;
9610
9611   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9612     return;
9613
9614   cursor_path = NULL;
9615   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9616     /* FIXME: we lost the cursor; should we get the first? */
9617     return;
9618
9619   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9620   _gtk_tree_view_find_node (tree_view, cursor_path,
9621                             &cursor_tree, &cursor_node);
9622
9623   if (cursor_tree == NULL)
9624     /* FIXME: we lost the cursor; should we get the first? */
9625     return;
9626
9627   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9628   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9629                                                       cursor_node,
9630                                                       cursor_path);
9631
9632   if (selection_count == 0
9633       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9634       && !tree_view->priv->ctrl_pressed
9635       && selectable)
9636     {
9637       /* Don't move the cursor, but just select the current node */
9638       new_cursor_tree = cursor_tree;
9639       new_cursor_node = cursor_node;
9640     }
9641   else
9642     {
9643       if (count == -1)
9644         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9645                                &new_cursor_tree, &new_cursor_node);
9646       else
9647         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9648                                &new_cursor_tree, &new_cursor_node);
9649     }
9650
9651   gtk_tree_path_free (cursor_path);
9652
9653   if (new_cursor_node)
9654     {
9655       cursor_path = _gtk_tree_view_find_path (tree_view,
9656                                               new_cursor_tree, new_cursor_node);
9657
9658       search_first_focusable_path (tree_view, &cursor_path,
9659                                    (count != -1),
9660                                    &new_cursor_tree,
9661                                    &new_cursor_node);
9662
9663       if (cursor_path)
9664         gtk_tree_path_free (cursor_path);
9665     }
9666
9667   /*
9668    * If the list has only one item and multi-selection is set then select
9669    * the row (if not yet selected).
9670    */
9671   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9672       new_cursor_node == NULL)
9673     {
9674       if (count == -1)
9675         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9676                                &new_cursor_tree, &new_cursor_node);
9677       else
9678         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9679                                &new_cursor_tree, &new_cursor_node);
9680
9681       if (new_cursor_node == NULL
9682           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9683         {
9684           new_cursor_node = cursor_node;
9685           new_cursor_tree = cursor_tree;
9686         }
9687       else
9688         {
9689           new_cursor_node = NULL;
9690         }
9691     }
9692
9693   if (new_cursor_node)
9694     {
9695       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9696       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9697       gtk_tree_path_free (cursor_path);
9698     }
9699   else
9700     {
9701       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9702
9703       if (!tree_view->priv->shift_pressed)
9704         {
9705           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9706                                           count < 0 ?
9707                                           GTK_DIR_UP : GTK_DIR_DOWN))
9708             {
9709               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9710
9711               if (toplevel)
9712                 gtk_widget_child_focus (toplevel,
9713                                         count < 0 ?
9714                                         GTK_DIR_TAB_BACKWARD :
9715                                         GTK_DIR_TAB_FORWARD);
9716
9717               grab_focus = FALSE;
9718             }
9719         }
9720       else
9721         {
9722           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9723         }
9724     }
9725
9726   if (grab_focus)
9727     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9728 }
9729
9730 static void
9731 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9732                                         gint         count)
9733 {
9734   GtkRBTree *cursor_tree = NULL;
9735   GtkRBNode *cursor_node = NULL;
9736   GtkTreePath *old_cursor_path = NULL;
9737   GtkTreePath *cursor_path = NULL;
9738   GtkRBTree *start_cursor_tree = NULL;
9739   GtkRBNode *start_cursor_node = NULL;
9740   gint y;
9741   gint window_y;
9742   gint vertical_separator;
9743
9744   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9745     return;
9746
9747   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9748     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9749   else
9750     /* This is sorta weird.  Focus in should give us a cursor */
9751     return;
9752
9753   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9754   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9755                             &cursor_tree, &cursor_node);
9756
9757   if (cursor_tree == NULL)
9758     {
9759       /* FIXME: we lost the cursor.  Should we try to get one? */
9760       gtk_tree_path_free (old_cursor_path);
9761       return;
9762     }
9763   g_return_if_fail (cursor_node != NULL);
9764
9765   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9766   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9767   y += tree_view->priv->cursor_offset;
9768   y += count * (int)tree_view->priv->vadjustment->page_increment;
9769   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9770
9771   if (y >= tree_view->priv->height)
9772     y = tree_view->priv->height - 1;
9773
9774   tree_view->priv->cursor_offset =
9775     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9776                              &cursor_tree, &cursor_node);
9777
9778   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9779     {
9780       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9781                              &cursor_tree, &cursor_node);
9782       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9783     }
9784
9785   y -= tree_view->priv->cursor_offset;
9786   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9787
9788   start_cursor_tree = cursor_tree;
9789   start_cursor_node = cursor_node;
9790
9791   if (! search_first_focusable_path (tree_view, &cursor_path,
9792                                      (count != -1),
9793                                      &cursor_tree, &cursor_node))
9794     {
9795       /* It looks like we reached the end of the view without finding
9796        * a focusable row.  We will step backwards to find the last
9797        * focusable row.
9798        */
9799       cursor_tree = start_cursor_tree;
9800       cursor_node = start_cursor_node;
9801       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9802
9803       search_first_focusable_path (tree_view, &cursor_path,
9804                                    (count == -1),
9805                                    &cursor_tree, &cursor_node);
9806     }
9807
9808   if (!cursor_path)
9809     goto cleanup;
9810
9811   /* update y */
9812   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9813
9814   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9815
9816   y -= window_y;
9817   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9818   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9819   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9820
9821   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9822     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9823
9824   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9825
9826 cleanup:
9827   gtk_tree_path_free (old_cursor_path);
9828   gtk_tree_path_free (cursor_path);
9829 }
9830
9831 static void
9832 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9833                                       gint         count)
9834 {
9835   GtkRBTree *cursor_tree = NULL;
9836   GtkRBNode *cursor_node = NULL;
9837   GtkTreePath *cursor_path = NULL;
9838   GtkTreeViewColumn *column;
9839   GtkTreeIter iter;
9840   GList *list;
9841   gboolean found_column = FALSE;
9842   gboolean rtl;
9843
9844   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9845
9846   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9847     return;
9848
9849   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9850     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9851   else
9852     return;
9853
9854   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9855   if (cursor_tree == NULL)
9856     return;
9857   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9858     {
9859       gtk_tree_path_free (cursor_path);
9860       return;
9861     }
9862   gtk_tree_path_free (cursor_path);
9863
9864   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9865   if (tree_view->priv->focus_column)
9866     {
9867       for (; list; list = (rtl ? list->prev : list->next))
9868         {
9869           if (list->data == tree_view->priv->focus_column)
9870             break;
9871         }
9872     }
9873
9874   while (list)
9875     {
9876       gboolean left, right;
9877
9878       column = list->data;
9879       if (column->visible == FALSE)
9880         goto loop_end;
9881
9882       gtk_tree_view_column_cell_set_cell_data (column,
9883                                                tree_view->priv->model,
9884                                                &iter,
9885                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9886                                                cursor_node->children?TRUE:FALSE);
9887
9888       if (rtl)
9889         {
9890           right = list->prev ? TRUE : FALSE;
9891           left = list->next ? TRUE : FALSE;
9892         }
9893       else
9894         {
9895           left = list->prev ? TRUE : FALSE;
9896           right = list->next ? TRUE : FALSE;
9897         }
9898
9899       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9900         {
9901           tree_view->priv->focus_column = column;
9902           found_column = TRUE;
9903           break;
9904         }
9905     loop_end:
9906       if (count == 1)
9907         list = rtl ? list->prev : list->next;
9908       else
9909         list = rtl ? list->next : list->prev;
9910     }
9911
9912   if (found_column)
9913     {
9914       if (!gtk_tree_view_has_special_cell (tree_view))
9915         _gtk_tree_view_queue_draw_node (tree_view,
9916                                         cursor_tree,
9917                                         cursor_node,
9918                                         NULL);
9919       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9920       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9921     }
9922   else
9923     {
9924       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9925     }
9926
9927   gtk_tree_view_clamp_column_visible (tree_view,
9928                                       tree_view->priv->focus_column, TRUE);
9929 }
9930
9931 static void
9932 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9933                                      gint         count)
9934 {
9935   GtkRBTree *cursor_tree;
9936   GtkRBNode *cursor_node;
9937   GtkTreePath *path;
9938   GtkTreePath *old_path;
9939
9940   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9941     return;
9942
9943   g_return_if_fail (tree_view->priv->tree != NULL);
9944
9945   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9946
9947   cursor_tree = tree_view->priv->tree;
9948   cursor_node = cursor_tree->root;
9949
9950   if (count == -1)
9951     {
9952       while (cursor_node && cursor_node->left != cursor_tree->nil)
9953         cursor_node = cursor_node->left;
9954
9955       /* Now go forward to find the first focusable row. */
9956       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9957       search_first_focusable_path (tree_view, &path,
9958                                    TRUE, &cursor_tree, &cursor_node);
9959     }
9960   else
9961     {
9962       do
9963         {
9964           while (cursor_node && cursor_node->right != cursor_tree->nil)
9965             cursor_node = cursor_node->right;
9966           if (cursor_node->children == NULL)
9967             break;
9968
9969           cursor_tree = cursor_node->children;
9970           cursor_node = cursor_tree->root;
9971         }
9972       while (1);
9973
9974       /* Now go backwards to find last focusable row. */
9975       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9976       search_first_focusable_path (tree_view, &path,
9977                                    FALSE, &cursor_tree, &cursor_node);
9978     }
9979
9980   if (!path)
9981     goto cleanup;
9982
9983   if (gtk_tree_path_compare (old_path, path))
9984     {
9985       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9986       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9987     }
9988   else
9989     {
9990       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9991     }
9992
9993 cleanup:
9994   gtk_tree_path_free (old_path);
9995   gtk_tree_path_free (path);
9996 }
9997
9998 static gboolean
9999 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
10000 {
10001   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10002     return FALSE;
10003
10004   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10005     return FALSE;
10006
10007   gtk_tree_selection_select_all (tree_view->priv->selection);
10008
10009   return TRUE;
10010 }
10011
10012 static gboolean
10013 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
10014 {
10015   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10016     return FALSE;
10017
10018   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
10019     return FALSE;
10020
10021   gtk_tree_selection_unselect_all (tree_view->priv->selection);
10022
10023   return TRUE;
10024 }
10025
10026 static gboolean
10027 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
10028                                       gboolean     start_editing)
10029 {
10030   GtkRBTree *new_tree = NULL;
10031   GtkRBNode *new_node = NULL;
10032   GtkRBTree *cursor_tree = NULL;
10033   GtkRBNode *cursor_node = NULL;
10034   GtkTreePath *cursor_path = NULL;
10035   GtkTreeSelectMode mode = 0;
10036
10037   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10038     return FALSE;
10039
10040   if (tree_view->priv->cursor)
10041     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10042
10043   if (cursor_path == NULL)
10044     return FALSE;
10045
10046   _gtk_tree_view_find_node (tree_view, cursor_path,
10047                             &cursor_tree, &cursor_node);
10048
10049   if (cursor_tree == NULL)
10050     {
10051       gtk_tree_path_free (cursor_path);
10052       return FALSE;
10053     }
10054
10055   if (!tree_view->priv->shift_pressed && start_editing &&
10056       tree_view->priv->focus_column)
10057     {
10058       if (gtk_tree_view_start_editing (tree_view, cursor_path))
10059         {
10060           gtk_tree_path_free (cursor_path);
10061           return TRUE;
10062         }
10063     }
10064
10065   if (tree_view->priv->ctrl_pressed)
10066     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
10067   if (tree_view->priv->shift_pressed)
10068     mode |= GTK_TREE_SELECT_MODE_EXTEND;
10069
10070   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10071                                             cursor_node,
10072                                             cursor_tree,
10073                                             cursor_path,
10074                                             mode,
10075                                             FALSE);
10076
10077   /* We bail out if the original (tree, node) don't exist anymore after
10078    * handling the selection-changed callback.  We do return TRUE because
10079    * the key press has been handled at this point.
10080    */
10081   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10082
10083   if (cursor_tree != new_tree || cursor_node != new_node)
10084     return FALSE;
10085
10086   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10087
10088   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10089   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10090
10091   if (!tree_view->priv->shift_pressed)
10092     gtk_tree_view_row_activated (tree_view, cursor_path,
10093                                  tree_view->priv->focus_column);
10094
10095   gtk_tree_path_free (cursor_path);
10096
10097   return TRUE;
10098 }
10099
10100 static gboolean
10101 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10102 {
10103   GtkRBTree *new_tree = NULL;
10104   GtkRBNode *new_node = NULL;
10105   GtkRBTree *cursor_tree = NULL;
10106   GtkRBNode *cursor_node = NULL;
10107   GtkTreePath *cursor_path = NULL;
10108
10109   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10110     return FALSE;
10111
10112   cursor_path = NULL;
10113   if (tree_view->priv->cursor)
10114     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10115
10116   if (cursor_path == NULL)
10117     return FALSE;
10118
10119   _gtk_tree_view_find_node (tree_view, cursor_path,
10120                             &cursor_tree, &cursor_node);
10121   if (cursor_tree == NULL)
10122     {
10123       gtk_tree_path_free (cursor_path);
10124       return FALSE;
10125     }
10126
10127   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10128                                             cursor_node,
10129                                             cursor_tree,
10130                                             cursor_path,
10131                                             GTK_TREE_SELECT_MODE_TOGGLE,
10132                                             FALSE);
10133
10134   /* We bail out if the original (tree, node) don't exist anymore after
10135    * handling the selection-changed callback.  We do return TRUE because
10136    * the key press has been handled at this point.
10137    */
10138   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10139
10140   if (cursor_tree != new_tree || cursor_node != new_node)
10141     return FALSE;
10142
10143   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10144
10145   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10146   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10147   gtk_tree_path_free (cursor_path);
10148
10149   return TRUE;
10150 }
10151
10152 static gboolean
10153 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10154                                                gboolean     logical,
10155                                                gboolean     expand,
10156                                                gboolean     open_all)
10157 {
10158   GtkTreePath *cursor_path = NULL;
10159   GtkRBTree *tree;
10160   GtkRBNode *node;
10161
10162   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10163     return FALSE;
10164
10165   cursor_path = NULL;
10166   if (tree_view->priv->cursor)
10167     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10168
10169   if (cursor_path == NULL)
10170     return FALSE;
10171
10172   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10173     return FALSE;
10174
10175   /* Don't handle the event if we aren't an expander */
10176   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10177     return FALSE;
10178
10179   if (!logical
10180       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10181     expand = !expand;
10182
10183   if (expand)
10184     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10185   else
10186     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10187
10188   gtk_tree_path_free (cursor_path);
10189
10190   return TRUE;
10191 }
10192
10193 static gboolean
10194 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10195 {
10196   GtkRBTree *cursor_tree = NULL;
10197   GtkRBNode *cursor_node = NULL;
10198   GtkTreePath *cursor_path = NULL;
10199   GdkModifierType state;
10200
10201   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10202     goto out;
10203
10204   cursor_path = NULL;
10205   if (tree_view->priv->cursor)
10206     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10207
10208   if (cursor_path == NULL)
10209     goto out;
10210
10211   _gtk_tree_view_find_node (tree_view, cursor_path,
10212                             &cursor_tree, &cursor_node);
10213   if (cursor_tree == NULL)
10214     {
10215       gtk_tree_path_free (cursor_path);
10216       goto out;
10217     }
10218
10219   if (cursor_tree->parent_node)
10220     {
10221       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10222       cursor_node = cursor_tree->parent_node;
10223       cursor_tree = cursor_tree->parent_tree;
10224
10225       gtk_tree_path_up (cursor_path);
10226
10227       if (gtk_get_current_event_state (&state))
10228         {
10229           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10230             tree_view->priv->ctrl_pressed = TRUE;
10231         }
10232
10233       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10234       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10235
10236       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10237       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10238       gtk_tree_path_free (cursor_path);
10239
10240       tree_view->priv->ctrl_pressed = FALSE;
10241
10242       return TRUE;
10243     }
10244
10245  out:
10246
10247   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10248   return FALSE;
10249 }
10250
10251 static gboolean
10252 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10253 {
10254   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10255   tree_view->priv->typeselect_flush_timeout = 0;
10256
10257   return FALSE;
10258 }
10259
10260 /* Cut and paste from gtkwindow.c */
10261 static void
10262 send_focus_change (GtkWidget *widget,
10263                    gboolean   in)
10264 {
10265   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10266
10267   g_object_ref (widget);
10268
10269  if (in)
10270     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10271   else
10272     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10273
10274   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10275   fevent->focus_change.window = g_object_ref (widget->window);
10276   fevent->focus_change.in = in;
10277
10278   gtk_widget_event (widget, fevent);
10279
10280   g_object_notify (G_OBJECT (widget), "has-focus");
10281
10282   g_object_unref (widget);
10283   gdk_event_free (fevent);
10284 }
10285
10286 static void
10287 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10288 {
10289   GtkWidget *frame, *vbox, *toplevel;
10290   GdkScreen *screen;
10291
10292   if (tree_view->priv->search_custom_entry_set)
10293     return;
10294
10295   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10296   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10297
10298    if (tree_view->priv->search_window != NULL)
10299      {
10300        if (GTK_WINDOW (toplevel)->group)
10301          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10302                                       GTK_WINDOW (tree_view->priv->search_window));
10303        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10304          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10305                                          GTK_WINDOW (tree_view->priv->search_window));
10306        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10307        return;
10308      }
10309
10310   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10311   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10312
10313   if (GTK_WINDOW (toplevel)->group)
10314     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10315                                  GTK_WINDOW (tree_view->priv->search_window));
10316
10317   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10318                             GDK_WINDOW_TYPE_HINT_UTILITY);
10319   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10320   g_signal_connect (tree_view->priv->search_window, "delete-event",
10321                     G_CALLBACK (gtk_tree_view_search_delete_event),
10322                     tree_view);
10323   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10324                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10325                     tree_view);
10326   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10327                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10328                     tree_view);
10329   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10330                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10331                     tree_view);
10332
10333   frame = gtk_frame_new (NULL);
10334   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10335   gtk_widget_show (frame);
10336   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10337
10338   vbox = gtk_vbox_new (FALSE, 0);
10339   gtk_widget_show (vbox);
10340   gtk_container_add (GTK_CONTAINER (frame), vbox);
10341   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10342
10343   /* add entry */
10344   tree_view->priv->search_entry = gtk_entry_new ();
10345   gtk_widget_show (tree_view->priv->search_entry);
10346   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10347                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10348                     tree_view);
10349   g_signal_connect (tree_view->priv->search_entry,
10350                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10351                     tree_view);
10352   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10353                     "preedit-changed",
10354                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10355                     tree_view);
10356   gtk_container_add (GTK_CONTAINER (vbox),
10357                      tree_view->priv->search_entry);
10358
10359   gtk_widget_realize (tree_view->priv->search_entry);
10360 }
10361
10362 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10363  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10364  */
10365 static gboolean
10366 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10367                                              gboolean     keybinding)
10368 {
10369   /* We only start interactive search if we have focus or the columns
10370    * have focus.  If one of our children have focus, we don't want to
10371    * start the search.
10372    */
10373   GList *list;
10374   gboolean found_focus = FALSE;
10375   GtkWidgetClass *entry_parent_class;
10376
10377   if (!tree_view->priv->enable_search && !keybinding)
10378     return FALSE;
10379
10380   if (tree_view->priv->search_custom_entry_set)
10381     return FALSE;
10382
10383   if (tree_view->priv->search_window != NULL &&
10384       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10385     return TRUE;
10386
10387   for (list = tree_view->priv->columns; list; list = list->next)
10388     {
10389       GtkTreeViewColumn *column;
10390
10391       column = list->data;
10392       if (! column->visible)
10393         continue;
10394
10395       if (GTK_WIDGET_HAS_FOCUS (column->button))
10396         {
10397           found_focus = TRUE;
10398           break;
10399         }
10400     }
10401
10402   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10403     found_focus = TRUE;
10404
10405   if (!found_focus)
10406     return FALSE;
10407
10408   if (tree_view->priv->search_column < 0)
10409     return FALSE;
10410
10411   gtk_tree_view_ensure_interactive_directory (tree_view);
10412
10413   if (keybinding)
10414     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10415
10416   /* done, show it */
10417   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10418   gtk_widget_show (tree_view->priv->search_window);
10419   if (tree_view->priv->search_entry_changed_id == 0)
10420     {
10421       tree_view->priv->search_entry_changed_id =
10422         g_signal_connect (tree_view->priv->search_entry, "changed",
10423                           G_CALLBACK (gtk_tree_view_search_init),
10424                           tree_view);
10425     }
10426
10427   tree_view->priv->typeselect_flush_timeout =
10428     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10429                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10430                    tree_view);
10431
10432   /* Grab focus will select all the text.  We don't want that to happen, so we
10433    * call the parent instance and bypass the selection change.  This is probably
10434    * really non-kosher. */
10435   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10436   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10437
10438   /* send focus-in event */
10439   send_focus_change (tree_view->priv->search_entry, TRUE);
10440
10441   /* search first matching iter */
10442   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10443
10444   return TRUE;
10445 }
10446
10447 static gboolean
10448 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10449 {
10450   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10451 }
10452
10453 /* this function returns the new width of the column being resized given
10454  * the column and x position of the cursor; the x cursor position is passed
10455  * in as a pointer and automagicly corrected if it's beyond min/max limits
10456  */
10457 static gint
10458 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10459                                 gint       i,
10460                                 gint      *x)
10461 {
10462   GtkTreeViewColumn *column;
10463   gint width;
10464   gboolean rtl;
10465
10466   /* first translate the x position from widget->window
10467    * to clist->clist_window
10468    */
10469   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10470   column = g_list_nth (tree_view->priv->columns, i)->data;
10471   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10472
10473   /* Clamp down the value */
10474   if (column->min_width == -1)
10475     width = MAX (column->button->requisition.width,
10476                  width);
10477   else
10478     width = MAX (column->min_width,
10479                  width);
10480   if (column->max_width != -1)
10481     width = MIN (width, column->max_width);
10482
10483   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10484
10485   return width;
10486 }
10487
10488
10489 /* FIXME this adjust_allocation is a big cut-and-paste from
10490  * GtkCList, needs to be some "official" way to do this
10491  * factored out.
10492  */
10493 typedef struct
10494 {
10495   GdkWindow *window;
10496   int dx;
10497   int dy;
10498 } ScrollData;
10499
10500 /* The window to which widget->window is relative */
10501 #define ALLOCATION_WINDOW(widget)               \
10502    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10503     (widget)->window :                          \
10504      gdk_window_get_parent ((widget)->window))
10505
10506 static void
10507 adjust_allocation_recurse (GtkWidget *widget,
10508                            gpointer   data)
10509 {
10510   ScrollData *scroll_data = data;
10511
10512   /* Need to really size allocate instead of just poking
10513    * into widget->allocation if the widget is not realized.
10514    * FIXME someone figure out why this was.
10515    */
10516   if (!GTK_WIDGET_REALIZED (widget))
10517     {
10518       if (GTK_WIDGET_VISIBLE (widget))
10519         {
10520           GdkRectangle tmp_rectangle = widget->allocation;
10521           tmp_rectangle.x += scroll_data->dx;
10522           tmp_rectangle.y += scroll_data->dy;
10523
10524           gtk_widget_size_allocate (widget, &tmp_rectangle);
10525         }
10526     }
10527   else
10528     {
10529       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10530         {
10531           widget->allocation.x += scroll_data->dx;
10532           widget->allocation.y += scroll_data->dy;
10533
10534           if (GTK_IS_CONTAINER (widget))
10535             gtk_container_forall (GTK_CONTAINER (widget),
10536                                   adjust_allocation_recurse,
10537                                   data);
10538         }
10539     }
10540 }
10541
10542 static void
10543 adjust_allocation (GtkWidget *widget,
10544                    int        dx,
10545                    int        dy)
10546 {
10547   ScrollData scroll_data;
10548
10549   if (GTK_WIDGET_REALIZED (widget))
10550     scroll_data.window = ALLOCATION_WINDOW (widget);
10551   else
10552     scroll_data.window = NULL;
10553
10554   scroll_data.dx = dx;
10555   scroll_data.dy = dy;
10556
10557   adjust_allocation_recurse (widget, &scroll_data);
10558 }
10559
10560 /* Callbacks */
10561 static void
10562 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10563                                   GtkTreeView   *tree_view)
10564 {
10565   if (GTK_WIDGET_REALIZED (tree_view))
10566     {
10567       gint dy;
10568
10569       gdk_window_move (tree_view->priv->bin_window,
10570                        - tree_view->priv->hadjustment->value,
10571                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10572       gdk_window_move (tree_view->priv->header_window,
10573                        - tree_view->priv->hadjustment->value,
10574                        0);
10575       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10576       if (dy)
10577         {
10578           if (tree_view->priv->tree)
10579             update_prelight (tree_view,
10580                              tree_view->priv->event_last_x,
10581                              tree_view->priv->event_last_y - dy);
10582
10583           if (tree_view->priv->edited_column &&
10584               GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10585             {
10586               GList *list;
10587               GtkWidget *widget;
10588               GtkTreeViewChild *child = NULL;
10589
10590               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10591               adjust_allocation (widget, 0, dy);
10592
10593               for (list = tree_view->priv->children; list; list = list->next)
10594                 {
10595                   child = (GtkTreeViewChild *)list->data;
10596                   if (child->widget == widget)
10597                     {
10598                       child->y += dy;
10599                       break;
10600                     }
10601                 }
10602             }
10603         }
10604       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10605
10606       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10607         {
10608           /* update our dy and top_row */
10609           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10610
10611           if (!tree_view->priv->in_top_row_to_dy)
10612             gtk_tree_view_dy_to_top_row (tree_view);
10613         }
10614
10615       gdk_window_process_updates (tree_view->priv->header_window, TRUE);
10616       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
10617     }
10618 }
10619
10620 \f
10621
10622 /* Public methods
10623  */
10624
10625 /**
10626  * gtk_tree_view_new:
10627  *
10628  * Creates a new #GtkTreeView widget.
10629  *
10630  * Return value: A newly created #GtkTreeView widget.
10631  **/
10632 GtkWidget *
10633 gtk_tree_view_new (void)
10634 {
10635   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10636 }
10637
10638 /**
10639  * gtk_tree_view_new_with_model:
10640  * @model: the model.
10641  *
10642  * Creates a new #GtkTreeView widget with the model initialized to @model.
10643  *
10644  * Return value: A newly created #GtkTreeView widget.
10645  **/
10646 GtkWidget *
10647 gtk_tree_view_new_with_model (GtkTreeModel *model)
10648 {
10649   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10650 }
10651
10652 /* Public Accessors
10653  */
10654
10655 /**
10656  * gtk_tree_view_get_model:
10657  * @tree_view: a #GtkTreeView
10658  *
10659  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10660  * model is unset.
10661  *
10662  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10663  **/
10664 GtkTreeModel *
10665 gtk_tree_view_get_model (GtkTreeView *tree_view)
10666 {
10667   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10668
10669   return tree_view->priv->model;
10670 }
10671
10672 /**
10673  * gtk_tree_view_set_model:
10674  * @tree_view: A #GtkTreeNode.
10675  * @model: (allow-none): The model.
10676  *
10677  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10678  * set, it will remove it before setting the new model.  If @model is %NULL,
10679  * then it will unset the old model.
10680  **/
10681 void
10682 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10683                          GtkTreeModel *model)
10684 {
10685   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10686   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10687
10688   if (model == tree_view->priv->model)
10689     return;
10690
10691   if (tree_view->priv->scroll_to_path)
10692     {
10693       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10694       tree_view->priv->scroll_to_path = NULL;
10695     }
10696
10697   if (tree_view->priv->model)
10698     {
10699       GList *tmplist = tree_view->priv->columns;
10700
10701       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10702       gtk_tree_view_stop_editing (tree_view, TRUE);
10703
10704       remove_expand_collapse_timeout (tree_view);
10705
10706       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10707                                             gtk_tree_view_row_changed,
10708                                             tree_view);
10709       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10710                                             gtk_tree_view_row_inserted,
10711                                             tree_view);
10712       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10713                                             gtk_tree_view_row_has_child_toggled,
10714                                             tree_view);
10715       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10716                                             gtk_tree_view_row_deleted,
10717                                             tree_view);
10718       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10719                                             gtk_tree_view_rows_reordered,
10720                                             tree_view);
10721
10722       for (; tmplist; tmplist = tmplist->next)
10723         _gtk_tree_view_column_unset_model (tmplist->data,
10724                                            tree_view->priv->model);
10725
10726       if (tree_view->priv->tree)
10727         gtk_tree_view_free_rbtree (tree_view);
10728
10729       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10730       tree_view->priv->drag_dest_row = NULL;
10731       gtk_tree_row_reference_free (tree_view->priv->cursor);
10732       tree_view->priv->cursor = NULL;
10733       gtk_tree_row_reference_free (tree_view->priv->anchor);
10734       tree_view->priv->anchor = NULL;
10735       gtk_tree_row_reference_free (tree_view->priv->top_row);
10736       tree_view->priv->top_row = NULL;
10737       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10738       tree_view->priv->scroll_to_path = NULL;
10739
10740       tree_view->priv->scroll_to_column = NULL;
10741
10742       g_object_unref (tree_view->priv->model);
10743
10744       tree_view->priv->search_column = -1;
10745       tree_view->priv->fixed_height_check = 0;
10746       tree_view->priv->fixed_height = -1;
10747       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10748       tree_view->priv->last_button_x = -1;
10749       tree_view->priv->last_button_y = -1;
10750     }
10751
10752   tree_view->priv->model = model;
10753
10754   if (tree_view->priv->model)
10755     {
10756       gint i;
10757       GtkTreePath *path;
10758       GtkTreeIter iter;
10759       GtkTreeModelFlags flags;
10760
10761       if (tree_view->priv->search_column == -1)
10762         {
10763           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10764             {
10765               GType type = gtk_tree_model_get_column_type (model, i);
10766
10767               if (g_value_type_transformable (type, G_TYPE_STRING))
10768                 {
10769                   tree_view->priv->search_column = i;
10770                   break;
10771                 }
10772             }
10773         }
10774
10775       g_object_ref (tree_view->priv->model);
10776       g_signal_connect (tree_view->priv->model,
10777                         "row-changed",
10778                         G_CALLBACK (gtk_tree_view_row_changed),
10779                         tree_view);
10780       g_signal_connect (tree_view->priv->model,
10781                         "row-inserted",
10782                         G_CALLBACK (gtk_tree_view_row_inserted),
10783                         tree_view);
10784       g_signal_connect (tree_view->priv->model,
10785                         "row-has-child-toggled",
10786                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10787                         tree_view);
10788       g_signal_connect (tree_view->priv->model,
10789                         "row-deleted",
10790                         G_CALLBACK (gtk_tree_view_row_deleted),
10791                         tree_view);
10792       g_signal_connect (tree_view->priv->model,
10793                         "rows-reordered",
10794                         G_CALLBACK (gtk_tree_view_rows_reordered),
10795                         tree_view);
10796
10797       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10798       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10799         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10800       else
10801         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10802
10803       path = gtk_tree_path_new_first ();
10804       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10805         {
10806           tree_view->priv->tree = _gtk_rbtree_new ();
10807           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10808         }
10809       gtk_tree_path_free (path);
10810
10811       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10812       install_presize_handler (tree_view);
10813     }
10814
10815   g_object_notify (G_OBJECT (tree_view), "model");
10816
10817   if (tree_view->priv->selection)
10818   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10819
10820   if (GTK_WIDGET_REALIZED (tree_view))
10821     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10822 }
10823
10824 /**
10825  * gtk_tree_view_get_selection:
10826  * @tree_view: A #GtkTreeView.
10827  *
10828  * Gets the #GtkTreeSelection associated with @tree_view.
10829  *
10830  * Return value: A #GtkTreeSelection object.
10831  **/
10832 GtkTreeSelection *
10833 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10834 {
10835   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10836
10837   return tree_view->priv->selection;
10838 }
10839
10840 /**
10841  * gtk_tree_view_get_hadjustment:
10842  * @tree_view: A #GtkTreeView
10843  *
10844  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10845  *
10846  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10847  * used.
10848  **/
10849 GtkAdjustment *
10850 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10851 {
10852   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10853
10854   if (tree_view->priv->hadjustment == NULL)
10855     gtk_tree_view_set_hadjustment (tree_view, NULL);
10856
10857   return tree_view->priv->hadjustment;
10858 }
10859
10860 /**
10861  * gtk_tree_view_set_hadjustment:
10862  * @tree_view: A #GtkTreeView
10863  * @adjustment: The #GtkAdjustment to set, or %NULL
10864  *
10865  * Sets the #GtkAdjustment for the current horizontal aspect.
10866  **/
10867 void
10868 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10869                                GtkAdjustment *adjustment)
10870 {
10871   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10872
10873   gtk_tree_view_set_adjustments (tree_view,
10874                                  adjustment,
10875                                  tree_view->priv->vadjustment);
10876
10877   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10878 }
10879
10880 /**
10881  * gtk_tree_view_get_vadjustment:
10882  * @tree_view: A #GtkTreeView
10883  *
10884  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10885  *
10886  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10887  * used.
10888  **/
10889 GtkAdjustment *
10890 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10891 {
10892   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10893
10894   if (tree_view->priv->vadjustment == NULL)
10895     gtk_tree_view_set_vadjustment (tree_view, NULL);
10896
10897   return tree_view->priv->vadjustment;
10898 }
10899
10900 /**
10901  * gtk_tree_view_set_vadjustment:
10902  * @tree_view: A #GtkTreeView
10903  * @adjustment: The #GtkAdjustment to set, or %NULL
10904  *
10905  * Sets the #GtkAdjustment for the current vertical aspect.
10906  **/
10907 void
10908 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10909                                GtkAdjustment *adjustment)
10910 {
10911   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10912
10913   gtk_tree_view_set_adjustments (tree_view,
10914                                  tree_view->priv->hadjustment,
10915                                  adjustment);
10916
10917   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10918 }
10919
10920 /* Column and header operations */
10921
10922 /**
10923  * gtk_tree_view_get_headers_visible:
10924  * @tree_view: A #GtkTreeView.
10925  *
10926  * Returns %TRUE if the headers on the @tree_view are visible.
10927  *
10928  * Return value: Whether the headers are visible or not.
10929  **/
10930 gboolean
10931 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10932 {
10933   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10934
10935   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10936 }
10937
10938 /**
10939  * gtk_tree_view_set_headers_visible:
10940  * @tree_view: A #GtkTreeView.
10941  * @headers_visible: %TRUE if the headers are visible
10942  *
10943  * Sets the visibility state of the headers.
10944  **/
10945 void
10946 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10947                                    gboolean     headers_visible)
10948 {
10949   gint x, y;
10950   GList *list;
10951   GtkTreeViewColumn *column;
10952
10953   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10954
10955   headers_visible = !! headers_visible;
10956
10957   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10958     return;
10959
10960   if (headers_visible)
10961     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10962   else
10963     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10964
10965   if (GTK_WIDGET_REALIZED (tree_view))
10966     {
10967       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10968       if (headers_visible)
10969         {
10970           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));
10971
10972           if (GTK_WIDGET_MAPPED (tree_view))
10973             gtk_tree_view_map_buttons (tree_view);
10974         }
10975       else
10976         {
10977           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10978
10979           for (list = tree_view->priv->columns; list; list = list->next)
10980             {
10981               column = list->data;
10982               gtk_widget_unmap (column->button);
10983             }
10984           gdk_window_hide (tree_view->priv->header_window);
10985         }
10986     }
10987
10988   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10989   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10990   tree_view->priv->vadjustment->lower = 0;
10991   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10992   gtk_adjustment_changed (tree_view->priv->vadjustment);
10993
10994   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10995
10996   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10997 }
10998
10999 /**
11000  * gtk_tree_view_columns_autosize:
11001  * @tree_view: A #GtkTreeView.
11002  *
11003  * Resizes all columns to their optimal width. Only works after the
11004  * treeview has been realized.
11005  **/
11006 void
11007 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
11008 {
11009   gboolean dirty = FALSE;
11010   GList *list;
11011   GtkTreeViewColumn *column;
11012
11013   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11014
11015   for (list = tree_view->priv->columns; list; list = list->next)
11016     {
11017       column = list->data;
11018       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
11019         continue;
11020       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11021       dirty = TRUE;
11022     }
11023
11024   if (dirty)
11025     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11026 }
11027
11028 /**
11029  * gtk_tree_view_set_headers_clickable:
11030  * @tree_view: A #GtkTreeView.
11031  * @setting: %TRUE if the columns are clickable.
11032  *
11033  * Allow the column title buttons to be clicked.
11034  **/
11035 void
11036 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
11037                                      gboolean   setting)
11038 {
11039   GList *list;
11040
11041   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11042
11043   for (list = tree_view->priv->columns; list; list = list->next)
11044     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
11045
11046   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
11047 }
11048
11049
11050 /**
11051  * gtk_tree_view_get_headers_clickable:
11052  * @tree_view: A #GtkTreeView.
11053  *
11054  * Returns whether all header columns are clickable.
11055  *
11056  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
11057  *
11058  * Since: 2.10
11059  **/
11060 gboolean
11061 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
11062 {
11063   GList *list;
11064
11065   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11066
11067   for (list = tree_view->priv->columns; list; list = list->next)
11068     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
11069       return FALSE;
11070
11071   return TRUE;
11072 }
11073
11074 /**
11075  * gtk_tree_view_set_rules_hint
11076  * @tree_view: a #GtkTreeView
11077  * @setting: %TRUE if the tree requires reading across rows
11078  *
11079  * This function tells GTK+ that the user interface for your
11080  * application requires users to read across tree rows and associate
11081  * cells with one another. By default, GTK+ will then render the tree
11082  * with alternating row colors. Do <emphasis>not</emphasis> use it
11083  * just because you prefer the appearance of the ruled tree; that's a
11084  * question for the theme. Some themes will draw tree rows in
11085  * alternating colors even when rules are turned off, and users who
11086  * prefer that appearance all the time can choose those themes. You
11087  * should call this function only as a <emphasis>semantic</emphasis>
11088  * hint to the theme engine that your tree makes alternating colors
11089  * useful from a functional standpoint (since it has lots of columns,
11090  * generally).
11091  *
11092  **/
11093 void
11094 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11095                               gboolean      setting)
11096 {
11097   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11098
11099   setting = setting != FALSE;
11100
11101   if (tree_view->priv->has_rules != setting)
11102     {
11103       tree_view->priv->has_rules = setting;
11104       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11105     }
11106
11107   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11108 }
11109
11110 /**
11111  * gtk_tree_view_get_rules_hint
11112  * @tree_view: a #GtkTreeView
11113  *
11114  * Gets the setting set by gtk_tree_view_set_rules_hint().
11115  *
11116  * Return value: %TRUE if rules are useful for the user of this tree
11117  **/
11118 gboolean
11119 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11120 {
11121   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11122
11123   return tree_view->priv->has_rules;
11124 }
11125
11126 /* Public Column functions
11127  */
11128
11129 /**
11130  * gtk_tree_view_append_column:
11131  * @tree_view: A #GtkTreeView.
11132  * @column: The #GtkTreeViewColumn to add.
11133  *
11134  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11135  * mode enabled, then @column must have its "sizing" property set to be
11136  * GTK_TREE_VIEW_COLUMN_FIXED.
11137  *
11138  * Return value: The number of columns in @tree_view after appending.
11139  **/
11140 gint
11141 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11142                              GtkTreeViewColumn *column)
11143 {
11144   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11145   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11146   g_return_val_if_fail (column->tree_view == NULL, -1);
11147
11148   return gtk_tree_view_insert_column (tree_view, column, -1);
11149 }
11150
11151
11152 /**
11153  * gtk_tree_view_remove_column:
11154  * @tree_view: A #GtkTreeView.
11155  * @column: The #GtkTreeViewColumn to remove.
11156  *
11157  * Removes @column from @tree_view.
11158  *
11159  * Return value: The number of columns in @tree_view after removing.
11160  **/
11161 gint
11162 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11163                              GtkTreeViewColumn *column)
11164 {
11165   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11166   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11167   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11168
11169   if (tree_view->priv->focus_column == column)
11170     tree_view->priv->focus_column = NULL;
11171
11172   if (tree_view->priv->edited_column == column)
11173     {
11174       gtk_tree_view_stop_editing (tree_view, TRUE);
11175
11176       /* no need to, but just to be sure ... */
11177       tree_view->priv->edited_column = NULL;
11178     }
11179
11180   g_signal_handlers_disconnect_by_func (column,
11181                                         G_CALLBACK (column_sizing_notify),
11182                                         tree_view);
11183
11184   _gtk_tree_view_column_unset_tree_view (column);
11185
11186   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11187   tree_view->priv->n_columns--;
11188
11189   if (GTK_WIDGET_REALIZED (tree_view))
11190     {
11191       GList *list;
11192
11193       _gtk_tree_view_column_unrealize_button (column);
11194       for (list = tree_view->priv->columns; list; list = list->next)
11195         {
11196           GtkTreeViewColumn *tmp_column;
11197
11198           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11199           if (tmp_column->visible)
11200             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11201         }
11202
11203       if (tree_view->priv->n_columns == 0 &&
11204           gtk_tree_view_get_headers_visible (tree_view))
11205         gdk_window_hide (tree_view->priv->header_window);
11206
11207       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11208     }
11209
11210   g_object_unref (column);
11211   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11212
11213   return tree_view->priv->n_columns;
11214 }
11215
11216 /**
11217  * gtk_tree_view_insert_column:
11218  * @tree_view: A #GtkTreeView.
11219  * @column: The #GtkTreeViewColumn to be inserted.
11220  * @position: The position to insert @column in.
11221  *
11222  * This inserts the @column into the @tree_view at @position.  If @position is
11223  * -1, then the column is inserted at the end. If @tree_view has
11224  * "fixed_height" mode enabled, then @column must have its "sizing" property
11225  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11226  *
11227  * Return value: The number of columns in @tree_view after insertion.
11228  **/
11229 gint
11230 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11231                              GtkTreeViewColumn *column,
11232                              gint               position)
11233 {
11234   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11235   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11236   g_return_val_if_fail (column->tree_view == NULL, -1);
11237
11238   if (tree_view->priv->fixed_height_mode)
11239     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11240                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11241
11242   g_object_ref_sink (column);
11243
11244   if (tree_view->priv->n_columns == 0 &&
11245       GTK_WIDGET_REALIZED (tree_view) &&
11246       gtk_tree_view_get_headers_visible (tree_view))
11247     {
11248       gdk_window_show (tree_view->priv->header_window);
11249     }
11250
11251   g_signal_connect (column, "notify::sizing",
11252                     G_CALLBACK (column_sizing_notify), tree_view);
11253
11254   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11255                                             column, position);
11256   tree_view->priv->n_columns++;
11257
11258   _gtk_tree_view_column_set_tree_view (column, tree_view);
11259
11260   if (GTK_WIDGET_REALIZED (tree_view))
11261     {
11262       GList *list;
11263
11264       _gtk_tree_view_column_realize_button (column);
11265
11266       for (list = tree_view->priv->columns; list; list = list->next)
11267         {
11268           column = GTK_TREE_VIEW_COLUMN (list->data);
11269           if (column->visible)
11270             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11271         }
11272       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11273     }
11274
11275   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11276
11277   return tree_view->priv->n_columns;
11278 }
11279
11280 /**
11281  * gtk_tree_view_insert_column_with_attributes:
11282  * @tree_view: A #GtkTreeView
11283  * @position: The position to insert the new column in.
11284  * @title: The title to set the header to.
11285  * @cell: The #GtkCellRenderer.
11286  * @Varargs: A %NULL-terminated list of attributes.
11287  *
11288  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11289  * @position.  If @position is -1, then the newly created column is inserted at
11290  * the end.  The column is initialized with the attributes given. If @tree_view
11291  * has "fixed_height" mode enabled, then the new column will have its sizing
11292  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11293  *
11294  * Return value: The number of columns in @tree_view after insertion.
11295  **/
11296 gint
11297 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11298                                              gint             position,
11299                                              const gchar     *title,
11300                                              GtkCellRenderer *cell,
11301                                              ...)
11302 {
11303   GtkTreeViewColumn *column;
11304   gchar *attribute;
11305   va_list args;
11306   gint column_id;
11307
11308   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11309
11310   column = gtk_tree_view_column_new ();
11311   if (tree_view->priv->fixed_height_mode)
11312     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11313
11314   gtk_tree_view_column_set_title (column, title);
11315   gtk_tree_view_column_pack_start (column, cell, TRUE);
11316
11317   va_start (args, cell);
11318
11319   attribute = va_arg (args, gchar *);
11320
11321   while (attribute != NULL)
11322     {
11323       column_id = va_arg (args, gint);
11324       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11325       attribute = va_arg (args, gchar *);
11326     }
11327
11328   va_end (args);
11329
11330   gtk_tree_view_insert_column (tree_view, column, position);
11331
11332   return tree_view->priv->n_columns;
11333 }
11334
11335 /**
11336  * gtk_tree_view_insert_column_with_data_func:
11337  * @tree_view: a #GtkTreeView
11338  * @position: Position to insert, -1 for append
11339  * @title: column title
11340  * @cell: cell renderer for column
11341  * @func: function to set attributes of cell renderer
11342  * @data: data for @func
11343  * @dnotify: destroy notifier for @data
11344  *
11345  * Convenience function that inserts a new column into the #GtkTreeView
11346  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11347  * attributes (normally using data from the model). See also
11348  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11349  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11350  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11351  *
11352  * Return value: number of columns in the tree view post-insert
11353  **/
11354 gint
11355 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11356                                              gint                       position,
11357                                              const gchar               *title,
11358                                              GtkCellRenderer           *cell,
11359                                              GtkTreeCellDataFunc        func,
11360                                              gpointer                   data,
11361                                              GDestroyNotify             dnotify)
11362 {
11363   GtkTreeViewColumn *column;
11364
11365   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11366
11367   column = gtk_tree_view_column_new ();
11368   if (tree_view->priv->fixed_height_mode)
11369     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11370
11371   gtk_tree_view_column_set_title (column, title);
11372   gtk_tree_view_column_pack_start (column, cell, TRUE);
11373   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11374
11375   gtk_tree_view_insert_column (tree_view, column, position);
11376
11377   return tree_view->priv->n_columns;
11378 }
11379
11380 /**
11381  * gtk_tree_view_get_column:
11382  * @tree_view: A #GtkTreeView.
11383  * @n: The position of the column, counting from 0.
11384  *
11385  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11386  *
11387  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11388  * range of columns.
11389  **/
11390 GtkTreeViewColumn *
11391 gtk_tree_view_get_column (GtkTreeView *tree_view,
11392                           gint         n)
11393 {
11394   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11395
11396   if (n < 0 || n >= tree_view->priv->n_columns)
11397     return NULL;
11398
11399   if (tree_view->priv->columns == NULL)
11400     return NULL;
11401
11402   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11403 }
11404
11405 /**
11406  * gtk_tree_view_get_columns:
11407  * @tree_view: A #GtkTreeView
11408  *
11409  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11410  * The returned list must be freed with g_list_free ().
11411  *
11412  * Return value: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
11413  **/
11414 GList *
11415 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11416 {
11417   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11418
11419   return g_list_copy (tree_view->priv->columns);
11420 }
11421
11422 /**
11423  * gtk_tree_view_move_column_after:
11424  * @tree_view: A #GtkTreeView
11425  * @column: The #GtkTreeViewColumn to be moved.
11426  * @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
11427  *
11428  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11429  * @column is placed in the first position.
11430  **/
11431 void
11432 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11433                                  GtkTreeViewColumn *column,
11434                                  GtkTreeViewColumn *base_column)
11435 {
11436   GList *column_list_el, *base_el = NULL;
11437
11438   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11439
11440   column_list_el = g_list_find (tree_view->priv->columns, column);
11441   g_return_if_fail (column_list_el != NULL);
11442
11443   if (base_column)
11444     {
11445       base_el = g_list_find (tree_view->priv->columns, base_column);
11446       g_return_if_fail (base_el != NULL);
11447     }
11448
11449   if (column_list_el->prev == base_el)
11450     return;
11451
11452   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11453   if (base_el == NULL)
11454     {
11455       column_list_el->prev = NULL;
11456       column_list_el->next = tree_view->priv->columns;
11457       if (column_list_el->next)
11458         column_list_el->next->prev = column_list_el;
11459       tree_view->priv->columns = column_list_el;
11460     }
11461   else
11462     {
11463       column_list_el->prev = base_el;
11464       column_list_el->next = base_el->next;
11465       if (column_list_el->next)
11466         column_list_el->next->prev = column_list_el;
11467       base_el->next = column_list_el;
11468     }
11469
11470   if (GTK_WIDGET_REALIZED (tree_view))
11471     {
11472       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11473       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11474     }
11475
11476   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11477 }
11478
11479 /**
11480  * gtk_tree_view_set_expander_column:
11481  * @tree_view: A #GtkTreeView
11482  * @column: %NULL, or the column to draw the expander arrow at.
11483  *
11484  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11485  * If @column is %NULL, then the expander arrow is always at the first
11486  * visible column.
11487  *
11488  * If you do not want expander arrow to appear in your tree, set the
11489  * expander column to a hidden column.
11490  **/
11491 void
11492 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11493                                    GtkTreeViewColumn *column)
11494 {
11495   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11496   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11497
11498   if (tree_view->priv->expander_column != column)
11499     {
11500       GList *list;
11501
11502       if (column)
11503         {
11504           /* Confirm that column is in tree_view */
11505           for (list = tree_view->priv->columns; list; list = list->next)
11506             if (list->data == column)
11507               break;
11508           g_return_if_fail (list != NULL);
11509         }
11510
11511       tree_view->priv->expander_column = column;
11512       g_object_notify (G_OBJECT (tree_view), "expander-column");
11513     }
11514 }
11515
11516 /**
11517  * gtk_tree_view_get_expander_column:
11518  * @tree_view: A #GtkTreeView
11519  *
11520  * Returns the column that is the current expander column.  This
11521  * column has the expander arrow drawn next to it.
11522  *
11523  * Return value: The expander column.
11524  **/
11525 GtkTreeViewColumn *
11526 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11527 {
11528   GList *list;
11529
11530   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11531
11532   for (list = tree_view->priv->columns; list; list = list->next)
11533     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11534       return (GtkTreeViewColumn *) list->data;
11535   return NULL;
11536 }
11537
11538
11539 /**
11540  * gtk_tree_view_set_column_drag_function:
11541  * @tree_view: A #GtkTreeView.
11542  * @func: A function to determine which columns are reorderable, or %NULL.
11543  * @user_data: User data to be passed to @func, or %NULL
11544  * @destroy: Destroy notifier for @user_data, or %NULL
11545  *
11546  * Sets a user function for determining where a column may be dropped when
11547  * dragged.  This function is called on every column pair in turn at the
11548  * beginning of a column drag to determine where a drop can take place.  The
11549  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11550  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11551  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11552  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11553  * @tree_view reverts to the default behavior of allowing all columns to be
11554  * dropped everywhere.
11555  **/
11556 void
11557 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11558                                         GtkTreeViewColumnDropFunc  func,
11559                                         gpointer                   user_data,
11560                                         GDestroyNotify             destroy)
11561 {
11562   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11563
11564   if (tree_view->priv->column_drop_func_data_destroy)
11565     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11566
11567   tree_view->priv->column_drop_func = func;
11568   tree_view->priv->column_drop_func_data = user_data;
11569   tree_view->priv->column_drop_func_data_destroy = destroy;
11570 }
11571
11572 /**
11573  * gtk_tree_view_scroll_to_point:
11574  * @tree_view: a #GtkTreeView
11575  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11576  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11577  *
11578  * Scrolls the tree view such that the top-left corner of the visible
11579  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11580  * in tree coordinates.  The @tree_view must be realized before
11581  * this function is called.  If it isn't, you probably want to be
11582  * using gtk_tree_view_scroll_to_cell().
11583  *
11584  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11585  **/
11586 void
11587 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11588                                gint         tree_x,
11589                                gint         tree_y)
11590 {
11591   GtkAdjustment *hadj;
11592   GtkAdjustment *vadj;
11593
11594   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11595   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11596
11597   hadj = tree_view->priv->hadjustment;
11598   vadj = tree_view->priv->vadjustment;
11599
11600   if (tree_x != -1)
11601     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11602   if (tree_y != -1)
11603     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11604 }
11605
11606 /**
11607  * gtk_tree_view_scroll_to_cell:
11608  * @tree_view: A #GtkTreeView.
11609  * @path: (allow-none): The path of the row to move to, or %NULL.
11610  * @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
11611  * @use_align: whether to use alignment arguments, or %FALSE.
11612  * @row_align: The vertical alignment of the row specified by @path.
11613  * @col_align: The horizontal alignment of the column specified by @column.
11614  *
11615  * Moves the alignments of @tree_view to the position specified by @column and
11616  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11617  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11618  * or @path need to be non-%NULL.  @row_align determines where the row is
11619  * placed, and @col_align determines where @column is placed.  Both are expected
11620  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11621  * right/bottom alignment, 0.5 means center.
11622  *
11623  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11624  * tree does the minimum amount of work to scroll the cell onto the screen.
11625  * This means that the cell will be scrolled to the edge closest to its current
11626  * position.  If the cell is currently visible on the screen, nothing is done.
11627  *
11628  * This function only works if the model is set, and @path is a valid row on the
11629  * model.  If the model changes before the @tree_view is realized, the centered
11630  * path will be modified to reflect this change.
11631  **/
11632 void
11633 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11634                               GtkTreePath       *path,
11635                               GtkTreeViewColumn *column,
11636                               gboolean           use_align,
11637                               gfloat             row_align,
11638                               gfloat             col_align)
11639 {
11640   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11641   g_return_if_fail (tree_view->priv->model != NULL);
11642   g_return_if_fail (tree_view->priv->tree != NULL);
11643   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11644   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11645   g_return_if_fail (path != NULL || column != NULL);
11646
11647 #if 0
11648   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11649            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11650 #endif
11651   row_align = CLAMP (row_align, 0.0, 1.0);
11652   col_align = CLAMP (col_align, 0.0, 1.0);
11653
11654
11655   /* Note: Despite the benefits that come from having one code path for the
11656    * scrolling code, we short-circuit validate_visible_area's immplementation as
11657    * it is much slower than just going to the point.
11658    */
11659   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11660       ! GTK_WIDGET_REALIZED (tree_view) ||
11661       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11662       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11663     {
11664       if (tree_view->priv->scroll_to_path)
11665         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11666
11667       tree_view->priv->scroll_to_path = NULL;
11668       tree_view->priv->scroll_to_column = NULL;
11669
11670       if (path)
11671         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11672       if (column)
11673         tree_view->priv->scroll_to_column = column;
11674       tree_view->priv->scroll_to_use_align = use_align;
11675       tree_view->priv->scroll_to_row_align = row_align;
11676       tree_view->priv->scroll_to_col_align = col_align;
11677
11678       install_presize_handler (tree_view);
11679     }
11680   else
11681     {
11682       GdkRectangle cell_rect;
11683       GdkRectangle vis_rect;
11684       gint dest_x, dest_y;
11685
11686       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11687       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11688
11689       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11690
11691       dest_x = vis_rect.x;
11692       dest_y = vis_rect.y;
11693
11694       if (column)
11695         {
11696           if (use_align)
11697             {
11698               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11699             }
11700           else
11701             {
11702               if (cell_rect.x < vis_rect.x)
11703                 dest_x = cell_rect.x;
11704               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11705                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11706             }
11707         }
11708
11709       if (path)
11710         {
11711           if (use_align)
11712             {
11713               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11714               dest_y = MAX (dest_y, 0);
11715             }
11716           else
11717             {
11718               if (cell_rect.y < vis_rect.y)
11719                 dest_y = cell_rect.y;
11720               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11721                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11722             }
11723         }
11724
11725       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11726     }
11727 }
11728
11729 /**
11730  * gtk_tree_view_row_activated:
11731  * @tree_view: A #GtkTreeView
11732  * @path: The #GtkTreePath to be activated.
11733  * @column: The #GtkTreeViewColumn to be activated.
11734  *
11735  * Activates the cell determined by @path and @column.
11736  **/
11737 void
11738 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11739                              GtkTreePath       *path,
11740                              GtkTreeViewColumn *column)
11741 {
11742   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11743
11744   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11745 }
11746
11747
11748 static void
11749 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11750                                           GtkRBNode *node,
11751                                           gpointer   data)
11752 {
11753   GtkTreeView *tree_view = data;
11754
11755   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11756       node->children)
11757     {
11758       GtkTreePath *path;
11759       GtkTreeIter iter;
11760
11761       path = _gtk_tree_view_find_path (tree_view, tree, node);
11762       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11763
11764       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11765
11766       gtk_tree_path_free (path);
11767     }
11768
11769   if (node->children)
11770     _gtk_rbtree_traverse (node->children,
11771                           node->children->root,
11772                           G_PRE_ORDER,
11773                           gtk_tree_view_expand_all_emission_helper,
11774                           tree_view);
11775 }
11776
11777 /**
11778  * gtk_tree_view_expand_all:
11779  * @tree_view: A #GtkTreeView.
11780  *
11781  * Recursively expands all nodes in the @tree_view.
11782  **/
11783 void
11784 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11785 {
11786   GtkTreePath *path;
11787   GtkRBTree *tree;
11788   GtkRBNode *node;
11789
11790   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11791
11792   if (tree_view->priv->tree == NULL)
11793     return;
11794
11795   path = gtk_tree_path_new_first ();
11796   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11797
11798   while (node)
11799     {
11800       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11801       node = _gtk_rbtree_next (tree, node);
11802       gtk_tree_path_next (path);
11803   }
11804
11805   gtk_tree_path_free (path);
11806 }
11807
11808 /* Timeout to animate the expander during expands and collapses */
11809 static gboolean
11810 expand_collapse_timeout (gpointer data)
11811 {
11812   return do_expand_collapse (data);
11813 }
11814
11815 static void
11816 add_expand_collapse_timeout (GtkTreeView *tree_view,
11817                              GtkRBTree   *tree,
11818                              GtkRBNode   *node,
11819                              gboolean     expand)
11820 {
11821   if (tree_view->priv->expand_collapse_timeout != 0)
11822     return;
11823
11824   tree_view->priv->expand_collapse_timeout =
11825       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11826   tree_view->priv->expanded_collapsed_tree = tree;
11827   tree_view->priv->expanded_collapsed_node = node;
11828
11829   if (expand)
11830     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11831   else
11832     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11833 }
11834
11835 static void
11836 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11837 {
11838   if (tree_view->priv->expand_collapse_timeout)
11839     {
11840       g_source_remove (tree_view->priv->expand_collapse_timeout);
11841       tree_view->priv->expand_collapse_timeout = 0;
11842     }
11843
11844   if (tree_view->priv->expanded_collapsed_node != NULL)
11845     {
11846       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11847       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11848
11849       tree_view->priv->expanded_collapsed_node = NULL;
11850     }
11851 }
11852
11853 static void
11854 cancel_arrow_animation (GtkTreeView *tree_view)
11855 {
11856   if (tree_view->priv->expand_collapse_timeout)
11857     {
11858       while (do_expand_collapse (tree_view));
11859
11860       remove_expand_collapse_timeout (tree_view);
11861     }
11862 }
11863
11864 static gboolean
11865 do_expand_collapse (GtkTreeView *tree_view)
11866 {
11867   GtkRBNode *node;
11868   GtkRBTree *tree;
11869   gboolean expanding;
11870   gboolean redraw;
11871
11872   redraw = FALSE;
11873   expanding = TRUE;
11874
11875   node = tree_view->priv->expanded_collapsed_node;
11876   tree = tree_view->priv->expanded_collapsed_tree;
11877
11878   if (node->children == NULL)
11879     expanding = FALSE;
11880
11881   if (expanding)
11882     {
11883       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11884         {
11885           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11886           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11887
11888           redraw = TRUE;
11889
11890         }
11891       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11892         {
11893           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11894
11895           redraw = TRUE;
11896         }
11897     }
11898   else
11899     {
11900       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11901         {
11902           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11903           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11904
11905           redraw = TRUE;
11906         }
11907       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11908         {
11909           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11910
11911           redraw = TRUE;
11912
11913         }
11914     }
11915
11916   if (redraw)
11917     {
11918       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11919
11920       return TRUE;
11921     }
11922
11923   return FALSE;
11924 }
11925
11926 /**
11927  * gtk_tree_view_collapse_all:
11928  * @tree_view: A #GtkTreeView.
11929  *
11930  * Recursively collapses all visible, expanded nodes in @tree_view.
11931  **/
11932 void
11933 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11934 {
11935   GtkRBTree *tree;
11936   GtkRBNode *node;
11937   GtkTreePath *path;
11938   gint *indices;
11939
11940   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11941
11942   if (tree_view->priv->tree == NULL)
11943     return;
11944
11945   path = gtk_tree_path_new ();
11946   gtk_tree_path_down (path);
11947   indices = gtk_tree_path_get_indices (path);
11948
11949   tree = tree_view->priv->tree;
11950   node = tree->root;
11951   while (node && node->left != tree->nil)
11952     node = node->left;
11953
11954   while (node)
11955     {
11956       if (node->children)
11957         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11958       indices[0]++;
11959       node = _gtk_rbtree_next (tree, node);
11960     }
11961
11962   gtk_tree_path_free (path);
11963 }
11964
11965 /**
11966  * gtk_tree_view_expand_to_path:
11967  * @tree_view: A #GtkTreeView.
11968  * @path: path to a row.
11969  *
11970  * Expands the row at @path. This will also expand all parent rows of
11971  * @path as necessary.
11972  *
11973  * Since: 2.2
11974  **/
11975 void
11976 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11977                               GtkTreePath *path)
11978 {
11979   gint i, depth;
11980   gint *indices;
11981   GtkTreePath *tmp;
11982
11983   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11984   g_return_if_fail (path != NULL);
11985
11986   depth = gtk_tree_path_get_depth (path);
11987   indices = gtk_tree_path_get_indices (path);
11988
11989   tmp = gtk_tree_path_new ();
11990   g_return_if_fail (tmp != NULL);
11991
11992   for (i = 0; i < depth; i++)
11993     {
11994       gtk_tree_path_append_index (tmp, indices[i]);
11995       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11996     }
11997
11998   gtk_tree_path_free (tmp);
11999 }
12000
12001 /* FIXME the bool return values for expand_row and collapse_row are
12002  * not analagous; they should be TRUE if the row had children and
12003  * was not already in the requested state.
12004  */
12005
12006
12007 static gboolean
12008 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
12009                                GtkTreePath *path,
12010                                GtkRBTree   *tree,
12011                                GtkRBNode   *node,
12012                                gboolean     open_all,
12013                                gboolean     animate)
12014 {
12015   GtkTreeIter iter;
12016   GtkTreeIter temp;
12017   gboolean expand;
12018
12019   if (animate)
12020     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12021                   "gtk-enable-animations", &animate,
12022                   NULL);
12023
12024   remove_auto_expand_timeout (tree_view);
12025
12026   if (node->children && !open_all)
12027     return FALSE;
12028
12029   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
12030     return FALSE;
12031
12032   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12033   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12034     return FALSE;
12035
12036
12037    if (node->children && open_all)
12038     {
12039       gboolean retval = FALSE;
12040       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
12041
12042       gtk_tree_path_append_index (tmp_path, 0);
12043       tree = node->children;
12044       node = tree->root;
12045       while (node->left != tree->nil)
12046         node = node->left;
12047       /* try to expand the children */
12048       do
12049         {
12050          gboolean t;
12051          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
12052                                             TRUE, animate);
12053          if (t)
12054            retval = TRUE;
12055
12056          gtk_tree_path_next (tmp_path);
12057          node = _gtk_rbtree_next (tree, node);
12058        }
12059       while (node != NULL);
12060
12061       gtk_tree_path_free (tmp_path);
12062
12063       return retval;
12064     }
12065
12066   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
12067
12068   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
12069     return FALSE;
12070
12071   if (expand)
12072     return FALSE;
12073
12074   node->children = _gtk_rbtree_new ();
12075   node->children->parent_tree = tree;
12076   node->children->parent_node = node;
12077
12078   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
12079
12080   gtk_tree_view_build_tree (tree_view,
12081                             node->children,
12082                             &temp,
12083                             gtk_tree_path_get_depth (path) + 1,
12084                             open_all);
12085
12086   remove_expand_collapse_timeout (tree_view);
12087
12088   if (animate)
12089     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12090
12091   install_presize_handler (tree_view);
12092
12093   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12094   if (open_all && node->children)
12095     {
12096       _gtk_rbtree_traverse (node->children,
12097                             node->children->root,
12098                             G_PRE_ORDER,
12099                             gtk_tree_view_expand_all_emission_helper,
12100                             tree_view);
12101     }
12102   return TRUE;
12103 }
12104
12105
12106 /**
12107  * gtk_tree_view_expand_row:
12108  * @tree_view: a #GtkTreeView
12109  * @path: path to a row
12110  * @open_all: whether to recursively expand, or just expand immediate children
12111  *
12112  * Opens the row so its children are visible.
12113  *
12114  * Return value: %TRUE if the row existed and had children
12115  **/
12116 gboolean
12117 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12118                           GtkTreePath *path,
12119                           gboolean     open_all)
12120 {
12121   GtkRBTree *tree;
12122   GtkRBNode *node;
12123
12124   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12125   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12126   g_return_val_if_fail (path != NULL, FALSE);
12127
12128   if (_gtk_tree_view_find_node (tree_view,
12129                                 path,
12130                                 &tree,
12131                                 &node))
12132     return FALSE;
12133
12134   if (tree != NULL)
12135     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12136   else
12137     return FALSE;
12138 }
12139
12140 static gboolean
12141 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12142                                  GtkTreePath *path,
12143                                  GtkRBTree   *tree,
12144                                  GtkRBNode   *node,
12145                                  gboolean     animate)
12146 {
12147   GtkTreeIter iter;
12148   GtkTreeIter children;
12149   gboolean collapse;
12150   gint x, y;
12151   GList *list;
12152   GdkWindow *child, *parent;
12153
12154   if (animate)
12155     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12156                   "gtk-enable-animations", &animate,
12157                   NULL);
12158
12159   remove_auto_expand_timeout (tree_view);
12160
12161   if (node->children == NULL)
12162     return FALSE;
12163
12164   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12165
12166   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12167
12168   if (collapse)
12169     return FALSE;
12170
12171   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12172    * a chance to prelight the correct node below */
12173
12174   if (tree_view->priv->prelight_tree)
12175     {
12176       GtkRBTree *parent_tree;
12177       GtkRBNode *parent_node;
12178
12179       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12180       parent_node = tree_view->priv->prelight_tree->parent_node;
12181       while (parent_tree)
12182         {
12183           if (parent_tree == tree && parent_node == node)
12184             {
12185               ensure_unprelighted (tree_view);
12186               break;
12187             }
12188           parent_node = parent_tree->parent_node;
12189           parent_tree = parent_tree->parent_tree;
12190         }
12191     }
12192
12193   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12194
12195   for (list = tree_view->priv->columns; list; list = list->next)
12196     {
12197       GtkTreeViewColumn *column = list->data;
12198
12199       if (column->visible == FALSE)
12200         continue;
12201       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12202         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12203     }
12204
12205   if (tree_view->priv->destroy_count_func)
12206     {
12207       GtkTreePath *child_path;
12208       gint child_count = 0;
12209       child_path = gtk_tree_path_copy (path);
12210       gtk_tree_path_down (child_path);
12211       if (node->children)
12212         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12213       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12214       gtk_tree_path_free (child_path);
12215     }
12216
12217   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12218     {
12219       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12220
12221       if (gtk_tree_path_is_ancestor (path, cursor_path))
12222         {
12223           gtk_tree_row_reference_free (tree_view->priv->cursor);
12224           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12225                                                                       tree_view->priv->model,
12226                                                                       path);
12227         }
12228       gtk_tree_path_free (cursor_path);
12229     }
12230
12231   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12232     {
12233       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12234       if (gtk_tree_path_is_ancestor (path, anchor_path))
12235         {
12236           gtk_tree_row_reference_free (tree_view->priv->anchor);
12237           tree_view->priv->anchor = NULL;
12238         }
12239       gtk_tree_path_free (anchor_path);
12240     }
12241
12242   /* Stop a pending double click */
12243   tree_view->priv->last_button_x = -1;
12244   tree_view->priv->last_button_y = -1;
12245
12246   remove_expand_collapse_timeout (tree_view);
12247
12248   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12249     {
12250       _gtk_rbtree_remove (node->children);
12251       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12252     }
12253   else
12254     _gtk_rbtree_remove (node->children);
12255
12256   if (animate)
12257     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12258
12259   if (GTK_WIDGET_MAPPED (tree_view))
12260     {
12261       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12262     }
12263
12264   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12265
12266   if (GTK_WIDGET_MAPPED (tree_view))
12267     {
12268       /* now that we've collapsed all rows, we want to try to set the prelight
12269        * again. To do this, we fake a motion event and send it to ourselves. */
12270
12271       child = tree_view->priv->bin_window;
12272       parent = gdk_window_get_parent (child);
12273
12274       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12275         {
12276           GdkEventMotion event;
12277           gint child_x, child_y;
12278
12279           gdk_window_get_position (child, &child_x, &child_y);
12280
12281           event.window = tree_view->priv->bin_window;
12282           event.x = x - child_x;
12283           event.y = y - child_y;
12284
12285           /* despite the fact this isn't a real event, I'm almost positive it will
12286            * never trigger a drag event.  maybe_drag is the only function that uses
12287            * more than just event.x and event.y. */
12288           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12289         }
12290     }
12291
12292   return TRUE;
12293 }
12294
12295 /**
12296  * gtk_tree_view_collapse_row:
12297  * @tree_view: a #GtkTreeView
12298  * @path: path to a row in the @tree_view
12299  *
12300  * Collapses a row (hides its child rows, if they exist).
12301  *
12302  * Return value: %TRUE if the row was collapsed.
12303  **/
12304 gboolean
12305 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12306                             GtkTreePath *path)
12307 {
12308   GtkRBTree *tree;
12309   GtkRBNode *node;
12310
12311   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12312   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12313   g_return_val_if_fail (path != NULL, FALSE);
12314
12315   if (_gtk_tree_view_find_node (tree_view,
12316                                 path,
12317                                 &tree,
12318                                 &node))
12319     return FALSE;
12320
12321   if (tree == NULL || node->children == NULL)
12322     return FALSE;
12323
12324   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12325 }
12326
12327 static void
12328 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12329                                         GtkRBTree              *tree,
12330                                         GtkTreePath            *path,
12331                                         GtkTreeViewMappingFunc  func,
12332                                         gpointer                user_data)
12333 {
12334   GtkRBNode *node;
12335
12336   if (tree == NULL || tree->root == NULL)
12337     return;
12338
12339   node = tree->root;
12340
12341   while (node && node->left != tree->nil)
12342     node = node->left;
12343
12344   while (node)
12345     {
12346       if (node->children)
12347         {
12348           (* func) (tree_view, path, user_data);
12349           gtk_tree_path_down (path);
12350           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12351           gtk_tree_path_up (path);
12352         }
12353       gtk_tree_path_next (path);
12354       node = _gtk_rbtree_next (tree, node);
12355     }
12356 }
12357
12358 /**
12359  * gtk_tree_view_map_expanded_rows:
12360  * @tree_view: A #GtkTreeView
12361  * @func: A function to be called
12362  * @data: User data to be passed to the function.
12363  *
12364  * Calls @func on all expanded rows.
12365  **/
12366 void
12367 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12368                                  GtkTreeViewMappingFunc  func,
12369                                  gpointer                user_data)
12370 {
12371   GtkTreePath *path;
12372
12373   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12374   g_return_if_fail (func != NULL);
12375
12376   path = gtk_tree_path_new_first ();
12377
12378   gtk_tree_view_map_expanded_rows_helper (tree_view,
12379                                           tree_view->priv->tree,
12380                                           path, func, user_data);
12381
12382   gtk_tree_path_free (path);
12383 }
12384
12385 /**
12386  * gtk_tree_view_row_expanded:
12387  * @tree_view: A #GtkTreeView.
12388  * @path: A #GtkTreePath to test expansion state.
12389  *
12390  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12391  *
12392  * Return value: %TRUE if #path is expanded.
12393  **/
12394 gboolean
12395 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12396                             GtkTreePath *path)
12397 {
12398   GtkRBTree *tree;
12399   GtkRBNode *node;
12400
12401   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12402   g_return_val_if_fail (path != NULL, FALSE);
12403
12404   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12405
12406   if (node == NULL)
12407     return FALSE;
12408
12409   return (node->children != NULL);
12410 }
12411
12412 /**
12413  * gtk_tree_view_get_reorderable:
12414  * @tree_view: a #GtkTreeView
12415  *
12416  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12417  * gtk_tree_view_set_reorderable().
12418  *
12419  * Return value: %TRUE if the tree can be reordered.
12420  **/
12421 gboolean
12422 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12423 {
12424   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12425
12426   return tree_view->priv->reorderable;
12427 }
12428
12429 /**
12430  * gtk_tree_view_set_reorderable:
12431  * @tree_view: A #GtkTreeView.
12432  * @reorderable: %TRUE, if the tree can be reordered.
12433  *
12434  * This function is a convenience function to allow you to reorder
12435  * models that support the #GtkDragSourceIface and the
12436  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12437  * these.  If @reorderable is %TRUE, then the user can reorder the
12438  * model by dragging and dropping rows. The developer can listen to
12439  * these changes by connecting to the model's row_inserted and
12440  * row_deleted signals. The reordering is implemented by setting up
12441  * the tree view as a drag source and destination. Therefore, drag and
12442  * drop can not be used in a reorderable view for any other purpose.
12443  *
12444  * This function does not give you any degree of control over the order -- any
12445  * reordering is allowed.  If more control is needed, you should probably
12446  * handle drag and drop manually.
12447  **/
12448 void
12449 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12450                                gboolean     reorderable)
12451 {
12452   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12453
12454   reorderable = reorderable != FALSE;
12455
12456   if (tree_view->priv->reorderable == reorderable)
12457     return;
12458
12459   if (reorderable)
12460     {
12461       const GtkTargetEntry row_targets[] = {
12462         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12463       };
12464
12465       gtk_tree_view_enable_model_drag_source (tree_view,
12466                                               GDK_BUTTON1_MASK,
12467                                               row_targets,
12468                                               G_N_ELEMENTS (row_targets),
12469                                               GDK_ACTION_MOVE);
12470       gtk_tree_view_enable_model_drag_dest (tree_view,
12471                                             row_targets,
12472                                             G_N_ELEMENTS (row_targets),
12473                                             GDK_ACTION_MOVE);
12474     }
12475   else
12476     {
12477       gtk_tree_view_unset_rows_drag_source (tree_view);
12478       gtk_tree_view_unset_rows_drag_dest (tree_view);
12479     }
12480
12481   tree_view->priv->reorderable = reorderable;
12482
12483   g_object_notify (G_OBJECT (tree_view), "reorderable");
12484 }
12485
12486 static void
12487 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12488                                GtkTreePath     *path,
12489                                gboolean         clear_and_select,
12490                                gboolean         clamp_node)
12491 {
12492   GtkRBTree *tree = NULL;
12493   GtkRBNode *node = NULL;
12494
12495   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12496     {
12497       GtkTreePath *cursor_path;
12498       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12499       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12500       gtk_tree_path_free (cursor_path);
12501     }
12502
12503   gtk_tree_row_reference_free (tree_view->priv->cursor);
12504   tree_view->priv->cursor = NULL;
12505
12506   /* One cannot set the cursor on a separator.   Also, if
12507    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12508    * before finding the tree and node belonging to path.  The
12509    * path maps to a non-existing path and we will silently bail out.
12510    * We unset tree and node to avoid further processing.
12511    */
12512   if (!row_is_separator (tree_view, NULL, path)
12513       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12514     {
12515       tree_view->priv->cursor =
12516           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12517                                             tree_view->priv->model,
12518                                             path);
12519     }
12520   else
12521     {
12522       tree = NULL;
12523       node = NULL;
12524     }
12525
12526   if (tree != NULL)
12527     {
12528       GtkRBTree *new_tree = NULL;
12529       GtkRBNode *new_node = NULL;
12530
12531       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12532         {
12533           GtkTreeSelectMode mode = 0;
12534
12535           if (tree_view->priv->ctrl_pressed)
12536             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12537           if (tree_view->priv->shift_pressed)
12538             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12539
12540           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12541                                                     node, tree, path, mode,
12542                                                     FALSE);
12543         }
12544
12545       /* We have to re-find tree and node here again, somebody might have
12546        * cleared the node or the whole tree in the GtkTreeSelection::changed
12547        * callback. If the nodes differ we bail out here.
12548        */
12549       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12550
12551       if (tree != new_tree || node != new_node)
12552         return;
12553
12554       if (clamp_node)
12555         {
12556           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12557           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12558         }
12559     }
12560
12561   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12562 }
12563
12564 /**
12565  * gtk_tree_view_get_cursor:
12566  * @tree_view: A #GtkTreeView
12567  * @path: A pointer to be filled with the current cursor path, or %NULL
12568  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12569  *
12570  * Fills in @path and @focus_column with the current path and focus column.  If
12571  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12572  * currently has focus, then *@focus_column will be %NULL.
12573  *
12574  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12575  * you are done with it.
12576  **/
12577 void
12578 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12579                           GtkTreePath       **path,
12580                           GtkTreeViewColumn **focus_column)
12581 {
12582   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12583
12584   if (path)
12585     {
12586       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12587         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12588       else
12589         *path = NULL;
12590     }
12591
12592   if (focus_column)
12593     {
12594       *focus_column = tree_view->priv->focus_column;
12595     }
12596 }
12597
12598 /**
12599  * gtk_tree_view_set_cursor:
12600  * @tree_view: A #GtkTreeView
12601  * @path: A #GtkTreePath
12602  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12603  * @start_editing: %TRUE if the specified cell should start being edited.
12604  *
12605  * Sets the current keyboard focus to be at @path, and selects it.  This is
12606  * useful when you want to focus the user's attention on a particular row.  If
12607  * @focus_column is not %NULL, then focus is given to the column specified by
12608  * it. Additionally, if @focus_column is specified, and @start_editing is
12609  * %TRUE, then editing should be started in the specified cell.
12610  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12611  * in order to give keyboard focus to the widget.  Please note that editing
12612  * can only happen when the widget is realized.
12613  *
12614  * If @path is invalid for @model, the current cursor (if any) will be unset
12615  * and the function will return without failing.
12616  **/
12617 void
12618 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12619                           GtkTreePath       *path,
12620                           GtkTreeViewColumn *focus_column,
12621                           gboolean           start_editing)
12622 {
12623   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12624                                     NULL, start_editing);
12625 }
12626
12627 /**
12628  * gtk_tree_view_set_cursor_on_cell:
12629  * @tree_view: A #GtkTreeView
12630  * @path: A #GtkTreePath
12631  * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
12632  * @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
12633  * @start_editing: %TRUE if the specified cell should start being edited.
12634  *
12635  * Sets the current keyboard focus to be at @path, and selects it.  This is
12636  * useful when you want to focus the user's attention on a particular row.  If
12637  * @focus_column is not %NULL, then focus is given to the column specified by
12638  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12639  * contains 2 or more editable or activatable cells, then focus is given to
12640  * the cell specified by @focus_cell. Additionally, if @focus_column is
12641  * specified, and @start_editing is %TRUE, then editing should be started in
12642  * the specified cell.  This function is often followed by
12643  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12644  * widget.  Please note that editing can only happen when the widget is
12645  * realized.
12646  *
12647  * If @path is invalid for @model, the current cursor (if any) will be unset
12648  * and the function will return without failing.
12649  *
12650  * Since: 2.2
12651  **/
12652 void
12653 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12654                                   GtkTreePath       *path,
12655                                   GtkTreeViewColumn *focus_column,
12656                                   GtkCellRenderer   *focus_cell,
12657                                   gboolean           start_editing)
12658 {
12659   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12660   g_return_if_fail (path != NULL);
12661   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12662
12663   if (!tree_view->priv->model)
12664     return;
12665
12666   if (focus_cell)
12667     {
12668       g_return_if_fail (focus_column);
12669       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12670     }
12671
12672   /* cancel the current editing, if it exists */
12673   if (tree_view->priv->edited_column &&
12674       tree_view->priv->edited_column->editable_widget)
12675     gtk_tree_view_stop_editing (tree_view, TRUE);
12676
12677   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12678
12679   if (focus_column && focus_column->visible)
12680     {
12681       GList *list;
12682       gboolean column_in_tree = FALSE;
12683
12684       for (list = tree_view->priv->columns; list; list = list->next)
12685         if (list->data == focus_column)
12686           {
12687             column_in_tree = TRUE;
12688             break;
12689           }
12690       g_return_if_fail (column_in_tree);
12691       tree_view->priv->focus_column = focus_column;
12692       if (focus_cell)
12693         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12694       if (start_editing)
12695         gtk_tree_view_start_editing (tree_view, path);
12696     }
12697 }
12698
12699 /**
12700  * gtk_tree_view_get_bin_window:
12701  * @tree_view: A #GtkTreeView
12702  *
12703  * Returns the window that @tree_view renders to.  This is used primarily to
12704  * compare to <literal>event->window</literal> to confirm that the event on
12705  * @tree_view is on the right window.
12706  *
12707  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12708  **/
12709 GdkWindow *
12710 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12711 {
12712   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12713
12714   return tree_view->priv->bin_window;
12715 }
12716
12717 /**
12718  * gtk_tree_view_get_path_at_pos:
12719  * @tree_view: A #GtkTreeView.
12720  * @x: The x position to be identified (relative to bin_window).
12721  * @y: The y position to be identified (relative to bin_window).
12722  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12723  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12724  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12725  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12726  *
12727  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12728  * (please see gtk_tree_view_get_bin_window()).
12729  * That is, @x and @y are relative to an events coordinates. @x and @y must
12730  * come from an event on the @tree_view only where <literal>event->window ==
12731  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12732  * things like popup menus. If @path is non-%NULL, then it will be filled
12733  * with the #GtkTreePath at that point.  This path should be freed with
12734  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12735  * with the column at that point.  @cell_x and @cell_y return the coordinates
12736  * relative to the cell background (i.e. the @background_area passed to
12737  * gtk_cell_renderer_render()).  This function is only meaningful if
12738  * @tree_view is realized.  Therefore this function will always return %FALSE
12739  * if @tree_view is not realized or does not have a model.
12740  *
12741  * For converting widget coordinates (eg. the ones you get from
12742  * GtkWidget::query-tooltip), please see
12743  * gtk_tree_view_convert_widget_to_bin_window_coords().
12744  *
12745  * Return value: %TRUE if a row exists at that coordinate.
12746  **/
12747 gboolean
12748 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12749                                gint                x,
12750                                gint                y,
12751                                GtkTreePath       **path,
12752                                GtkTreeViewColumn **column,
12753                                gint               *cell_x,
12754                                gint               *cell_y)
12755 {
12756   GtkRBTree *tree;
12757   GtkRBNode *node;
12758   gint y_offset;
12759
12760   g_return_val_if_fail (tree_view != NULL, FALSE);
12761
12762   if (path)
12763     *path = NULL;
12764   if (column)
12765     *column = NULL;
12766
12767   if (tree_view->priv->bin_window == NULL)
12768     return FALSE;
12769
12770   if (tree_view->priv->tree == NULL)
12771     return FALSE;
12772
12773   if (x > tree_view->priv->hadjustment->upper)
12774     return FALSE;
12775
12776   if (x < 0 || y < 0)
12777     return FALSE;
12778
12779   if (column || cell_x)
12780     {
12781       GtkTreeViewColumn *tmp_column;
12782       GtkTreeViewColumn *last_column = NULL;
12783       GList *list;
12784       gint remaining_x = x;
12785       gboolean found = FALSE;
12786       gboolean rtl;
12787
12788       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12789       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12790            list;
12791            list = (rtl ? list->prev : list->next))
12792         {
12793           tmp_column = list->data;
12794
12795           if (tmp_column->visible == FALSE)
12796             continue;
12797
12798           last_column = tmp_column;
12799           if (remaining_x <= tmp_column->width)
12800             {
12801               found = TRUE;
12802
12803               if (column)
12804                 *column = tmp_column;
12805
12806               if (cell_x)
12807                 *cell_x = remaining_x;
12808
12809               break;
12810             }
12811           remaining_x -= tmp_column->width;
12812         }
12813
12814       /* If found is FALSE and there is a last_column, then it the remainder
12815        * space is in that area
12816        */
12817       if (!found)
12818         {
12819           if (last_column)
12820             {
12821               if (column)
12822                 *column = last_column;
12823
12824               if (cell_x)
12825                 *cell_x = last_column->width + remaining_x;
12826             }
12827           else
12828             {
12829               return FALSE;
12830             }
12831         }
12832     }
12833
12834   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12835                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12836                                       &tree, &node);
12837
12838   if (tree == NULL)
12839     return FALSE;
12840
12841   if (cell_y)
12842     *cell_y = y_offset;
12843
12844   if (path)
12845     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12846
12847   return TRUE;
12848 }
12849
12850
12851 /**
12852  * gtk_tree_view_get_cell_area:
12853  * @tree_view: a #GtkTreeView
12854  * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12855  * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12856  * @rect: rectangle to fill with cell rect
12857  *
12858  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12859  * row specified by @path and the column specified by @column.  If @path is
12860  * %NULL, or points to a path not currently displayed, the @y and @height fields
12861  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12862  * fields will be filled with 0.  The sum of all cell rects does not cover the
12863  * entire tree; there are extra pixels in between rows, for example. The
12864  * returned rectangle is equivalent to the @cell_area passed to
12865  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12866  * realized.
12867  **/
12868 void
12869 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12870                              GtkTreePath        *path,
12871                              GtkTreeViewColumn  *column,
12872                              GdkRectangle       *rect)
12873 {
12874   GtkRBTree *tree = NULL;
12875   GtkRBNode *node = NULL;
12876   gint vertical_separator;
12877   gint horizontal_separator;
12878
12879   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12880   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12881   g_return_if_fail (rect != NULL);
12882   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12883   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12884
12885   gtk_widget_style_get (GTK_WIDGET (tree_view),
12886                         "vertical-separator", &vertical_separator,
12887                         "horizontal-separator", &horizontal_separator,
12888                         NULL);
12889
12890   rect->x = 0;
12891   rect->y = 0;
12892   rect->width = 0;
12893   rect->height = 0;
12894
12895   if (column)
12896     {
12897       rect->x = column->button->allocation.x + horizontal_separator/2;
12898       rect->width = column->button->allocation.width - horizontal_separator;
12899     }
12900
12901   if (path)
12902     {
12903       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12904
12905       /* Get vertical coords */
12906       if ((!ret && tree == NULL) || ret)
12907         return;
12908
12909       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12910       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12911
12912       if (column &&
12913           gtk_tree_view_is_expander_column (tree_view, column))
12914         {
12915           gint depth = gtk_tree_path_get_depth (path);
12916           gboolean rtl;
12917
12918           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12919
12920           if (!rtl)
12921             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12922           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12923
12924           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12925             {
12926               if (!rtl)
12927                 rect->x += depth * tree_view->priv->expander_size;
12928               rect->width -= depth * tree_view->priv->expander_size;
12929             }
12930
12931           rect->width = MAX (rect->width, 0);
12932         }
12933     }
12934 }
12935
12936 /**
12937  * gtk_tree_view_get_background_area:
12938  * @tree_view: a #GtkTreeView
12939  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12940  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12941  * @rect: rectangle to fill with cell background rect
12942  *
12943  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12944  * row specified by @path and the column specified by @column.  If @path is
12945  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12946  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12947  * fields will be filled with 0.  The returned rectangle is equivalent to the
12948  * @background_area passed to gtk_cell_renderer_render().  These background
12949  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12950  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12951  * itself, excluding surrounding borders and the tree expander area.
12952  *
12953  **/
12954 void
12955 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12956                                    GtkTreePath        *path,
12957                                    GtkTreeViewColumn  *column,
12958                                    GdkRectangle       *rect)
12959 {
12960   GtkRBTree *tree = NULL;
12961   GtkRBNode *node = NULL;
12962
12963   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12964   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12965   g_return_if_fail (rect != NULL);
12966
12967   rect->x = 0;
12968   rect->y = 0;
12969   rect->width = 0;
12970   rect->height = 0;
12971
12972   if (path)
12973     {
12974       /* Get vertical coords */
12975
12976       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12977           tree == NULL)
12978         return;
12979
12980       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12981
12982       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12983     }
12984
12985   if (column)
12986     {
12987       gint x2 = 0;
12988
12989       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12990       rect->width = x2 - rect->x;
12991     }
12992 }
12993
12994 /**
12995  * gtk_tree_view_get_visible_rect:
12996  * @tree_view: a #GtkTreeView
12997  * @visible_rect: rectangle to fill
12998  *
12999  * Fills @visible_rect with the currently-visible region of the
13000  * buffer, in tree coordinates. Convert to bin_window coordinates with
13001  * gtk_tree_view_convert_tree_to_bin_window_coords().
13002  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
13003  * scrollable area of the tree.
13004  **/
13005 void
13006 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
13007                                 GdkRectangle *visible_rect)
13008 {
13009   GtkWidget *widget;
13010
13011   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13012
13013   widget = GTK_WIDGET (tree_view);
13014
13015   if (visible_rect)
13016     {
13017       visible_rect->x = tree_view->priv->hadjustment->value;
13018       visible_rect->y = tree_view->priv->vadjustment->value;
13019       visible_rect->width = widget->allocation.width;
13020       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
13021     }
13022 }
13023
13024 /**
13025  * gtk_tree_view_widget_to_tree_coords:
13026  * @tree_view: a #GtkTreeView
13027  * @wx: X coordinate relative to bin_window
13028  * @wy: Y coordinate relative to bin_window
13029  * @tx: return location for tree X coordinate
13030  * @ty: return location for tree Y coordinate
13031  *
13032  * Converts bin_window coordinates to coordinates for the
13033  * tree (the full scrollable area of the tree).
13034  *
13035  * Deprecated: 2.12: Due to historial reasons the name of this function is
13036  * incorrect.  For converting coordinates relative to the widget to
13037  * bin_window coordinates, please see
13038  * gtk_tree_view_convert_widget_to_bin_window_coords().
13039  *
13040  **/
13041 void
13042 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
13043                                       gint         wx,
13044                                       gint         wy,
13045                                       gint        *tx,
13046                                       gint        *ty)
13047 {
13048   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13049
13050   if (tx)
13051     *tx = wx + tree_view->priv->hadjustment->value;
13052   if (ty)
13053     *ty = wy + tree_view->priv->dy;
13054 }
13055
13056 /**
13057  * gtk_tree_view_tree_to_widget_coords:
13058  * @tree_view: a #GtkTreeView
13059  * @tx: tree X coordinate
13060  * @ty: tree Y coordinate
13061  * @wx: return location for X coordinate relative to bin_window
13062  * @wy: return location for Y coordinate relative to bin_window
13063  *
13064  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13065  * to bin_window coordinates.
13066  *
13067  * Deprecated: 2.12: Due to historial reasons the name of this function is
13068  * incorrect.  For converting bin_window coordinates to coordinates relative
13069  * to bin_window, please see
13070  * gtk_tree_view_convert_bin_window_to_widget_coords().
13071  *
13072  **/
13073 void
13074 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13075                                      gint         tx,
13076                                      gint         ty,
13077                                      gint        *wx,
13078                                      gint        *wy)
13079 {
13080   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13081
13082   if (wx)
13083     *wx = tx - tree_view->priv->hadjustment->value;
13084   if (wy)
13085     *wy = ty - tree_view->priv->dy;
13086 }
13087
13088
13089 /**
13090  * gtk_tree_view_convert_widget_to_tree_coords:
13091  * @tree_view: a #GtkTreeView
13092  * @wx: X coordinate relative to the widget
13093  * @wy: Y coordinate relative to the widget
13094  * @tx: return location for tree X coordinate
13095  * @ty: return location for tree Y coordinate
13096  *
13097  * Converts widget coordinates to coordinates for the
13098  * tree (the full scrollable area of the tree).
13099  *
13100  * Since: 2.12
13101  **/
13102 void
13103 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13104                                              gint         wx,
13105                                              gint         wy,
13106                                              gint        *tx,
13107                                              gint        *ty)
13108 {
13109   gint x, y;
13110
13111   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13112
13113   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13114                                                      wx, wy,
13115                                                      &x, &y);
13116   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13117                                                    x, y,
13118                                                    tx, ty);
13119 }
13120
13121 /**
13122  * gtk_tree_view_convert_tree_to_widget_coords:
13123  * @tree_view: a #GtkTreeView
13124  * @tx: X coordinate relative to the tree
13125  * @ty: Y coordinate relative to the tree
13126  * @wx: return location for widget X coordinate
13127  * @wy: return location for widget Y coordinate
13128  *
13129  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13130  * to widget coordinates.
13131  *
13132  * Since: 2.12
13133  **/
13134 void
13135 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13136                                              gint         tx,
13137                                              gint         ty,
13138                                              gint        *wx,
13139                                              gint        *wy)
13140 {
13141   gint x, y;
13142
13143   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13144
13145   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13146                                                    tx, ty,
13147                                                    &x, &y);
13148   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13149                                                      x, y,
13150                                                      wx, wy);
13151 }
13152
13153 /**
13154  * gtk_tree_view_convert_widget_to_bin_window_coords:
13155  * @tree_view: a #GtkTreeView
13156  * @wx: X coordinate relative to the widget
13157  * @wy: Y coordinate relative to the widget
13158  * @bx: return location for bin_window X coordinate
13159  * @by: return location for bin_window Y coordinate
13160  *
13161  * Converts widget coordinates to coordinates for the bin_window
13162  * (see gtk_tree_view_get_bin_window()).
13163  *
13164  * Since: 2.12
13165  **/
13166 void
13167 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13168                                                    gint         wx,
13169                                                    gint         wy,
13170                                                    gint        *bx,
13171                                                    gint        *by)
13172 {
13173   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13174
13175   if (bx)
13176     *bx = wx + tree_view->priv->hadjustment->value;
13177   if (by)
13178     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13179 }
13180
13181 /**
13182  * gtk_tree_view_convert_bin_window_to_widget_coords:
13183  * @tree_view: a #GtkTreeView
13184  * @bx: bin_window X coordinate
13185  * @by: bin_window Y coordinate
13186  * @wx: return location for widget X coordinate
13187  * @wy: return location for widget Y coordinate
13188  *
13189  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13190  * to widget relative coordinates.
13191  *
13192  * Since: 2.12
13193  **/
13194 void
13195 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13196                                                    gint         bx,
13197                                                    gint         by,
13198                                                    gint        *wx,
13199                                                    gint        *wy)
13200 {
13201   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13202
13203   if (wx)
13204     *wx = bx - tree_view->priv->hadjustment->value;
13205   if (wy)
13206     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13207 }
13208
13209 /**
13210  * gtk_tree_view_convert_tree_to_bin_window_coords:
13211  * @tree_view: a #GtkTreeView
13212  * @tx: tree X coordinate
13213  * @ty: tree Y coordinate
13214  * @bx: return location for X coordinate relative to bin_window
13215  * @by: return location for Y coordinate relative to bin_window
13216  *
13217  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13218  * to bin_window coordinates.
13219  *
13220  * Since: 2.12
13221  **/
13222 void
13223 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13224                                                  gint         tx,
13225                                                  gint         ty,
13226                                                  gint        *bx,
13227                                                  gint        *by)
13228 {
13229   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13230
13231   if (bx)
13232     *bx = tx;
13233   if (by)
13234     *by = ty - tree_view->priv->dy;
13235 }
13236
13237 /**
13238  * gtk_tree_view_convert_bin_window_to_tree_coords:
13239  * @tree_view: a #GtkTreeView
13240  * @bx: X coordinate relative to bin_window
13241  * @by: Y coordinate relative to bin_window
13242  * @tx: return location for tree X coordinate
13243  * @ty: return location for tree Y coordinate
13244  *
13245  * Converts bin_window coordinates to coordinates for the
13246  * tree (the full scrollable area of the tree).
13247  *
13248  * Since: 2.12
13249  **/
13250 void
13251 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13252                                                  gint         bx,
13253                                                  gint         by,
13254                                                  gint        *tx,
13255                                                  gint        *ty)
13256 {
13257   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13258
13259   if (tx)
13260     *tx = bx;
13261   if (ty)
13262     *ty = by + tree_view->priv->dy;
13263 }
13264
13265
13266
13267 /**
13268  * gtk_tree_view_get_visible_range:
13269  * @tree_view: A #GtkTreeView
13270  * @start_path: Return location for start of region, or %NULL.
13271  * @end_path: Return location for end of region, or %NULL.
13272  *
13273  * Sets @start_path and @end_path to be the first and last visible path.
13274  * Note that there may be invisible paths in between.
13275  *
13276  * The paths should be freed with gtk_tree_path_free() after use.
13277  *
13278  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13279  *
13280  * Since: 2.8
13281  **/
13282 gboolean
13283 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13284                                  GtkTreePath **start_path,
13285                                  GtkTreePath **end_path)
13286 {
13287   GtkRBTree *tree;
13288   GtkRBNode *node;
13289   gboolean retval;
13290
13291   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13292
13293   if (!tree_view->priv->tree)
13294     return FALSE;
13295
13296   retval = TRUE;
13297
13298   if (start_path)
13299     {
13300       _gtk_rbtree_find_offset (tree_view->priv->tree,
13301                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13302                                &tree, &node);
13303       if (node)
13304         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13305       else
13306         retval = FALSE;
13307     }
13308
13309   if (end_path)
13310     {
13311       gint y;
13312
13313       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13314         y = tree_view->priv->height - 1;
13315       else
13316         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13317
13318       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13319       if (node)
13320         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13321       else
13322         retval = FALSE;
13323     }
13324
13325   return retval;
13326 }
13327
13328 static void
13329 unset_reorderable (GtkTreeView *tree_view)
13330 {
13331   if (tree_view->priv->reorderable)
13332     {
13333       tree_view->priv->reorderable = FALSE;
13334       g_object_notify (G_OBJECT (tree_view), "reorderable");
13335     }
13336 }
13337
13338 /**
13339  * gtk_tree_view_enable_model_drag_source:
13340  * @tree_view: a #GtkTreeView
13341  * @start_button_mask: Mask of allowed buttons to start drag
13342  * @targets: the table of targets that the drag will support
13343  * @n_targets: the number of items in @targets
13344  * @actions: the bitmask of possible actions for a drag from this
13345  *    widget
13346  *
13347  * Turns @tree_view into a drag source for automatic DND. Calling this
13348  * method sets #GtkTreeView:reorderable to %FALSE.
13349  **/
13350 void
13351 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13352                                         GdkModifierType           start_button_mask,
13353                                         const GtkTargetEntry     *targets,
13354                                         gint                      n_targets,
13355                                         GdkDragAction             actions)
13356 {
13357   TreeViewDragInfo *di;
13358
13359   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13360
13361   gtk_drag_source_set (GTK_WIDGET (tree_view),
13362                        0,
13363                        targets,
13364                        n_targets,
13365                        actions);
13366
13367   di = ensure_info (tree_view);
13368
13369   di->start_button_mask = start_button_mask;
13370   di->source_actions = actions;
13371   di->source_set = TRUE;
13372
13373   unset_reorderable (tree_view);
13374 }
13375
13376 /**
13377  * gtk_tree_view_enable_model_drag_dest:
13378  * @tree_view: a #GtkTreeView
13379  * @targets: the table of targets that the drag will support
13380  * @n_targets: the number of items in @targets
13381  * @actions: the bitmask of possible actions for a drag from this
13382  *    widget
13383  *
13384  * Turns @tree_view into a drop destination for automatic DND. Calling
13385  * this method sets #GtkTreeView:reorderable to %FALSE.
13386  **/
13387 void
13388 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13389                                       const GtkTargetEntry     *targets,
13390                                       gint                      n_targets,
13391                                       GdkDragAction             actions)
13392 {
13393   TreeViewDragInfo *di;
13394
13395   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13396
13397   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13398                      0,
13399                      targets,
13400                      n_targets,
13401                      actions);
13402
13403   di = ensure_info (tree_view);
13404   di->dest_set = TRUE;
13405
13406   unset_reorderable (tree_view);
13407 }
13408
13409 /**
13410  * gtk_tree_view_unset_rows_drag_source:
13411  * @tree_view: a #GtkTreeView
13412  *
13413  * Undoes the effect of
13414  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13415  * #GtkTreeView:reorderable to %FALSE.
13416  **/
13417 void
13418 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13419 {
13420   TreeViewDragInfo *di;
13421
13422   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13423
13424   di = get_info (tree_view);
13425
13426   if (di)
13427     {
13428       if (di->source_set)
13429         {
13430           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13431           di->source_set = FALSE;
13432         }
13433
13434       if (!di->dest_set && !di->source_set)
13435         remove_info (tree_view);
13436     }
13437
13438   unset_reorderable (tree_view);
13439 }
13440
13441 /**
13442  * gtk_tree_view_unset_rows_drag_dest:
13443  * @tree_view: a #GtkTreeView
13444  *
13445  * Undoes the effect of
13446  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13447  * #GtkTreeView:reorderable to %FALSE.
13448  **/
13449 void
13450 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13451 {
13452   TreeViewDragInfo *di;
13453
13454   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13455
13456   di = get_info (tree_view);
13457
13458   if (di)
13459     {
13460       if (di->dest_set)
13461         {
13462           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13463           di->dest_set = FALSE;
13464         }
13465
13466       if (!di->dest_set && !di->source_set)
13467         remove_info (tree_view);
13468     }
13469
13470   unset_reorderable (tree_view);
13471 }
13472
13473 /**
13474  * gtk_tree_view_set_drag_dest_row:
13475  * @tree_view: a #GtkTreeView
13476  * @path: The path of the row to highlight, or %NULL.
13477  * @pos: Specifies whether to drop before, after or into the row
13478  *
13479  * Sets the row that is highlighted for feedback.
13480  **/
13481 void
13482 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13483                                  GtkTreePath            *path,
13484                                  GtkTreeViewDropPosition pos)
13485 {
13486   GtkTreePath *current_dest;
13487
13488   /* Note; this function is exported to allow a custom DND
13489    * implementation, so it can't touch TreeViewDragInfo
13490    */
13491
13492   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13493
13494   current_dest = NULL;
13495
13496   if (tree_view->priv->drag_dest_row)
13497     {
13498       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13499       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13500     }
13501
13502   /* special case a drop on an empty model */
13503   tree_view->priv->empty_view_drop = 0;
13504
13505   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13506       && gtk_tree_path_get_depth (path) == 1
13507       && gtk_tree_path_get_indices (path)[0] == 0)
13508     {
13509       gint n_children;
13510
13511       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13512                                                    NULL);
13513
13514       if (!n_children)
13515         tree_view->priv->empty_view_drop = 1;
13516     }
13517
13518   tree_view->priv->drag_dest_pos = pos;
13519
13520   if (path)
13521     {
13522       tree_view->priv->drag_dest_row =
13523         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13524       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13525     }
13526   else
13527     tree_view->priv->drag_dest_row = NULL;
13528
13529   if (current_dest)
13530     {
13531       GtkRBTree *tree, *new_tree;
13532       GtkRBNode *node, *new_node;
13533
13534       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13535       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13536
13537       if (tree && node)
13538         {
13539           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13540           if (new_tree && new_node)
13541             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13542
13543           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13544           if (new_tree && new_node)
13545             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13546         }
13547       gtk_tree_path_free (current_dest);
13548     }
13549 }
13550
13551 /**
13552  * gtk_tree_view_get_drag_dest_row:
13553  * @tree_view: a #GtkTreeView
13554  * @path: Return location for the path of the highlighted row, or %NULL.
13555  * @pos: Return location for the drop position, or %NULL
13556  *
13557  * Gets information about the row that is highlighted for feedback.
13558  **/
13559 void
13560 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13561                                  GtkTreePath             **path,
13562                                  GtkTreeViewDropPosition  *pos)
13563 {
13564   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13565
13566   if (path)
13567     {
13568       if (tree_view->priv->drag_dest_row)
13569         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13570       else
13571         {
13572           if (tree_view->priv->empty_view_drop)
13573             *path = gtk_tree_path_new_from_indices (0, -1);
13574           else
13575             *path = NULL;
13576         }
13577     }
13578
13579   if (pos)
13580     *pos = tree_view->priv->drag_dest_pos;
13581 }
13582
13583 /**
13584  * gtk_tree_view_get_dest_row_at_pos:
13585  * @tree_view: a #GtkTreeView
13586  * @drag_x: the position to determine the destination row for
13587  * @drag_y: the position to determine the destination row for
13588  * @path: Return location for the path of the highlighted row, or %NULL.
13589  * @pos: Return location for the drop position, or %NULL
13590  *
13591  * Determines the destination row for a given position.  @drag_x and
13592  * @drag_y are expected to be in widget coordinates.  This function is only
13593  * meaningful if @tree_view is realized.  Therefore this function will always
13594  * return %FALSE if @tree_view is not realized or does not have a model.
13595  *
13596  * Return value: whether there is a row at the given position, %TRUE if this
13597  * is indeed the case.
13598  **/
13599 gboolean
13600 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13601                                    gint                     drag_x,
13602                                    gint                     drag_y,
13603                                    GtkTreePath            **path,
13604                                    GtkTreeViewDropPosition *pos)
13605 {
13606   gint cell_y;
13607   gint bin_x, bin_y;
13608   gdouble offset_into_row;
13609   gdouble third;
13610   GdkRectangle cell;
13611   GtkTreeViewColumn *column = NULL;
13612   GtkTreePath *tmp_path = NULL;
13613
13614   /* Note; this function is exported to allow a custom DND
13615    * implementation, so it can't touch TreeViewDragInfo
13616    */
13617
13618   g_return_val_if_fail (tree_view != NULL, FALSE);
13619   g_return_val_if_fail (drag_x >= 0, FALSE);
13620   g_return_val_if_fail (drag_y >= 0, FALSE);
13621
13622   if (path)
13623     *path = NULL;
13624
13625   if (tree_view->priv->bin_window == NULL)
13626     return FALSE;
13627
13628   if (tree_view->priv->tree == NULL)
13629     return FALSE;
13630
13631   /* If in the top third of a row, we drop before that row; if
13632    * in the bottom third, drop after that row; if in the middle,
13633    * and the row has children, drop into the row.
13634    */
13635   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13636                                                      &bin_x, &bin_y);
13637
13638   if (!gtk_tree_view_get_path_at_pos (tree_view,
13639                                       bin_x,
13640                                       bin_y,
13641                                       &tmp_path,
13642                                       &column,
13643                                       NULL,
13644                                       &cell_y))
13645     return FALSE;
13646
13647   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13648                                      &cell);
13649
13650   offset_into_row = cell_y;
13651
13652   if (path)
13653     *path = tmp_path;
13654   else
13655     gtk_tree_path_free (tmp_path);
13656
13657   tmp_path = NULL;
13658
13659   third = cell.height / 3.0;
13660
13661   if (pos)
13662     {
13663       if (offset_into_row < third)
13664         {
13665           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13666         }
13667       else if (offset_into_row < (cell.height / 2.0))
13668         {
13669           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13670         }
13671       else if (offset_into_row < third * 2.0)
13672         {
13673           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13674         }
13675       else
13676         {
13677           *pos = GTK_TREE_VIEW_DROP_AFTER;
13678         }
13679     }
13680
13681   return TRUE;
13682 }
13683
13684
13685
13686 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13687 /**
13688  * gtk_tree_view_create_row_drag_icon:
13689  * @tree_view: a #GtkTreeView
13690  * @path: a #GtkTreePath in @tree_view
13691  *
13692  * Creates a #GdkPixmap representation of the row at @path.
13693  * This image is used for a drag icon.
13694  *
13695  * Return value: a newly-allocated pixmap of the drag icon.
13696  **/
13697 GdkPixmap *
13698 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13699                                     GtkTreePath  *path)
13700 {
13701   GtkTreeIter   iter;
13702   GtkRBTree    *tree;
13703   GtkRBNode    *node;
13704   gint cell_offset;
13705   GList *list;
13706   GdkRectangle background_area;
13707   GdkRectangle expose_area;
13708   GtkWidget *widget;
13709   gint depth;
13710   /* start drawing inside the black outline */
13711   gint x = 1, y = 1;
13712   GdkDrawable *drawable;
13713   gint bin_window_width;
13714   gboolean is_separator = FALSE;
13715   gboolean rtl;
13716
13717   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13718   g_return_val_if_fail (path != NULL, NULL);
13719
13720   widget = GTK_WIDGET (tree_view);
13721
13722   if (!GTK_WIDGET_REALIZED (tree_view))
13723     return NULL;
13724
13725   depth = gtk_tree_path_get_depth (path);
13726
13727   _gtk_tree_view_find_node (tree_view,
13728                             path,
13729                             &tree,
13730                             &node);
13731
13732   if (tree == NULL)
13733     return NULL;
13734
13735   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13736                                 &iter,
13737                                 path))
13738     return NULL;
13739
13740   is_separator = row_is_separator (tree_view, &iter, NULL);
13741
13742   cell_offset = x;
13743
13744   background_area.y = y;
13745   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13746
13747   gdk_drawable_get_size (tree_view->priv->bin_window,
13748                          &bin_window_width, NULL);
13749
13750   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13751                              bin_window_width + 2,
13752                              background_area.height + 2,
13753                              -1);
13754
13755   expose_area.x = 0;
13756   expose_area.y = 0;
13757   expose_area.width = bin_window_width + 2;
13758   expose_area.height = background_area.height + 2;
13759
13760   gdk_draw_rectangle (drawable,
13761                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13762                       TRUE,
13763                       0, 0,
13764                       bin_window_width + 2,
13765                       background_area.height + 2);
13766
13767   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13768
13769   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13770       list;
13771       list = (rtl ? list->prev : list->next))
13772     {
13773       GtkTreeViewColumn *column = list->data;
13774       GdkRectangle cell_area;
13775       gint vertical_separator;
13776
13777       if (!column->visible)
13778         continue;
13779
13780       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13781                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13782                                                node->children?TRUE:FALSE);
13783
13784       background_area.x = cell_offset;
13785       background_area.width = column->width;
13786
13787       gtk_widget_style_get (widget,
13788                             "vertical-separator", &vertical_separator,
13789                             NULL);
13790
13791       cell_area = background_area;
13792
13793       cell_area.y += vertical_separator / 2;
13794       cell_area.height -= vertical_separator;
13795
13796       if (gtk_tree_view_is_expander_column (tree_view, column))
13797         {
13798           if (!rtl)
13799             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13800           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13801
13802           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13803             {
13804               if (!rtl)
13805                 cell_area.x += depth * tree_view->priv->expander_size;
13806               cell_area.width -= depth * tree_view->priv->expander_size;
13807             }
13808         }
13809
13810       if (gtk_tree_view_column_cell_is_visible (column))
13811         {
13812           if (is_separator)
13813             gtk_paint_hline (widget->style,
13814                              drawable,
13815                              GTK_STATE_NORMAL,
13816                              &cell_area,
13817                              widget,
13818                              NULL,
13819                              cell_area.x,
13820                              cell_area.x + cell_area.width,
13821                              cell_area.y + cell_area.height / 2);
13822           else
13823             _gtk_tree_view_column_cell_render (column,
13824                                                drawable,
13825                                                &background_area,
13826                                                &cell_area,
13827                                                &expose_area,
13828                                                0);
13829         }
13830       cell_offset += column->width;
13831     }
13832
13833   gdk_draw_rectangle (drawable,
13834                       widget->style->black_gc,
13835                       FALSE,
13836                       0, 0,
13837                       bin_window_width + 1,
13838                       background_area.height + 1);
13839
13840   return drawable;
13841 }
13842
13843
13844 /**
13845  * gtk_tree_view_set_destroy_count_func:
13846  * @tree_view: A #GtkTreeView
13847  * @func: Function to be called when a view row is destroyed, or %NULL
13848  * @data: User data to be passed to @func, or %NULL
13849  * @destroy: Destroy notifier for @data, or %NULL
13850  *
13851  * This function should almost never be used.  It is meant for private use by
13852  * ATK for determining the number of visible children that are removed when the
13853  * user collapses a row, or a row is deleted.
13854  **/
13855 void
13856 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13857                                       GtkTreeDestroyCountFunc  func,
13858                                       gpointer                 data,
13859                                       GDestroyNotify           destroy)
13860 {
13861   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13862
13863   if (tree_view->priv->destroy_count_destroy)
13864     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13865
13866   tree_view->priv->destroy_count_func = func;
13867   tree_view->priv->destroy_count_data = data;
13868   tree_view->priv->destroy_count_destroy = destroy;
13869 }
13870
13871
13872 /*
13873  * Interactive search
13874  */
13875
13876 /**
13877  * gtk_tree_view_set_enable_search:
13878  * @tree_view: A #GtkTreeView
13879  * @enable_search: %TRUE, if the user can search interactively
13880  *
13881  * If @enable_search is set, then the user can type in text to search through
13882  * the tree interactively (this is sometimes called "typeahead find").
13883  *
13884  * Note that even if this is %FALSE, the user can still initiate a search
13885  * using the "start-interactive-search" key binding.
13886  */
13887 void
13888 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13889                                  gboolean     enable_search)
13890 {
13891   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13892
13893   enable_search = !!enable_search;
13894
13895   if (tree_view->priv->enable_search != enable_search)
13896     {
13897        tree_view->priv->enable_search = enable_search;
13898        g_object_notify (G_OBJECT (tree_view), "enable-search");
13899     }
13900 }
13901
13902 /**
13903  * gtk_tree_view_get_enable_search:
13904  * @tree_view: A #GtkTreeView
13905  *
13906  * Returns whether or not the tree allows to start interactive searching
13907  * by typing in text.
13908  *
13909  * Return value: whether or not to let the user search interactively
13910  */
13911 gboolean
13912 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13913 {
13914   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13915
13916   return tree_view->priv->enable_search;
13917 }
13918
13919
13920 /**
13921  * gtk_tree_view_get_search_column:
13922  * @tree_view: A #GtkTreeView
13923  *
13924  * Gets the column searched on by the interactive search code.
13925  *
13926  * Return value: the column the interactive search code searches in.
13927  */
13928 gint
13929 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13930 {
13931   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13932
13933   return (tree_view->priv->search_column);
13934 }
13935
13936 /**
13937  * gtk_tree_view_set_search_column:
13938  * @tree_view: A #GtkTreeView
13939  * @column: the column of the model to search in, or -1 to disable searching
13940  *
13941  * Sets @column as the column where the interactive search code should
13942  * search in for the current model.
13943  *
13944  * If the search column is set, users can use the "start-interactive-search"
13945  * key binding to bring up search popup. The enable-search property controls
13946  * whether simply typing text will also start an interactive search.
13947  *
13948  * Note that @column refers to a column of the current model. The search
13949  * column is reset to -1 when the model is changed.
13950  */
13951 void
13952 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13953                                  gint         column)
13954 {
13955   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13956   g_return_if_fail (column >= -1);
13957
13958   if (tree_view->priv->search_column == column)
13959     return;
13960
13961   tree_view->priv->search_column = column;
13962   g_object_notify (G_OBJECT (tree_view), "search-column");
13963 }
13964
13965 /**
13966  * gtk_tree_view_get_search_equal_func:
13967  * @tree_view: A #GtkTreeView
13968  *
13969  * Returns the compare function currently in use.
13970  *
13971  * Return value: the currently used compare function for the search code.
13972  */
13973
13974 GtkTreeViewSearchEqualFunc
13975 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13976 {
13977   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13978
13979   return tree_view->priv->search_equal_func;
13980 }
13981
13982 /**
13983  * gtk_tree_view_set_search_equal_func:
13984  * @tree_view: A #GtkTreeView
13985  * @search_equal_func: the compare function to use during the search
13986  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13987  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13988  *
13989  * Sets the compare function for the interactive search capabilities; note
13990  * that somewhat like strcmp() returning 0 for equality
13991  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13992  **/
13993 void
13994 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13995                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13996                                      gpointer                    search_user_data,
13997                                      GDestroyNotify              search_destroy)
13998 {
13999   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14000   g_return_if_fail (search_equal_func != NULL);
14001
14002   if (tree_view->priv->search_destroy)
14003     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
14004
14005   tree_view->priv->search_equal_func = search_equal_func;
14006   tree_view->priv->search_user_data = search_user_data;
14007   tree_view->priv->search_destroy = search_destroy;
14008   if (tree_view->priv->search_equal_func == NULL)
14009     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
14010 }
14011
14012 /**
14013  * gtk_tree_view_get_search_entry:
14014  * @tree_view: A #GtkTreeView
14015  *
14016  * Returns the #GtkEntry which is currently in use as interactive search
14017  * entry for @tree_view.  In case the built-in entry is being used, %NULL
14018  * will be returned.
14019  *
14020  * Return value: the entry currently in use as search entry.
14021  *
14022  * Since: 2.10
14023  */
14024 GtkEntry *
14025 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
14026 {
14027   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14028
14029   if (tree_view->priv->search_custom_entry_set)
14030     return GTK_ENTRY (tree_view->priv->search_entry);
14031
14032   return NULL;
14033 }
14034
14035 /**
14036  * gtk_tree_view_set_search_entry:
14037  * @tree_view: A #GtkTreeView
14038  * @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
14039  *
14040  * Sets the entry which the interactive search code will use for this
14041  * @tree_view.  This is useful when you want to provide a search entry
14042  * in our interface at all time at a fixed position.  Passing %NULL for
14043  * @entry will make the interactive search code use the built-in popup
14044  * entry again.
14045  *
14046  * Since: 2.10
14047  */
14048 void
14049 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
14050                                 GtkEntry    *entry)
14051 {
14052   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14053   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
14054
14055   if (tree_view->priv->search_custom_entry_set)
14056     {
14057       if (tree_view->priv->search_entry_changed_id)
14058         {
14059           g_signal_handler_disconnect (tree_view->priv->search_entry,
14060                                        tree_view->priv->search_entry_changed_id);
14061           tree_view->priv->search_entry_changed_id = 0;
14062         }
14063       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14064                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14065                                             tree_view);
14066
14067       g_object_unref (tree_view->priv->search_entry);
14068     }
14069   else if (tree_view->priv->search_window)
14070     {
14071       gtk_widget_destroy (tree_view->priv->search_window);
14072
14073       tree_view->priv->search_window = NULL;
14074     }
14075
14076   if (entry)
14077     {
14078       tree_view->priv->search_entry = g_object_ref (entry);
14079       tree_view->priv->search_custom_entry_set = TRUE;
14080
14081       if (tree_view->priv->search_entry_changed_id == 0)
14082         {
14083           tree_view->priv->search_entry_changed_id =
14084             g_signal_connect (tree_view->priv->search_entry, "changed",
14085                               G_CALLBACK (gtk_tree_view_search_init),
14086                               tree_view);
14087         }
14088
14089         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14090                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14091                           tree_view);
14092
14093         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14094     }
14095   else
14096     {
14097       tree_view->priv->search_entry = NULL;
14098       tree_view->priv->search_custom_entry_set = FALSE;
14099     }
14100 }
14101
14102 /**
14103  * gtk_tree_view_set_search_position_func:
14104  * @tree_view: A #GtkTreeView
14105  * @func: the function to use to position the search dialog, or %NULL
14106  *    to use the default search position function
14107  * @data: user data to pass to @func, or %NULL
14108  * @destroy: Destroy notifier for @data, or %NULL
14109  *
14110  * Sets the function to use when positioning the search dialog.
14111  *
14112  * Since: 2.10
14113  **/
14114 void
14115 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14116                                         GtkTreeViewSearchPositionFunc  func,
14117                                         gpointer                       user_data,
14118                                         GDestroyNotify                 destroy)
14119 {
14120   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14121
14122   if (tree_view->priv->search_position_destroy)
14123     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14124
14125   tree_view->priv->search_position_func = func;
14126   tree_view->priv->search_position_user_data = user_data;
14127   tree_view->priv->search_position_destroy = destroy;
14128   if (tree_view->priv->search_position_func == NULL)
14129     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14130 }
14131
14132 /**
14133  * gtk_tree_view_get_search_position_func:
14134  * @tree_view: A #GtkTreeView
14135  *
14136  * Returns the positioning function currently in use.
14137  *
14138  * Return value: the currently used function for positioning the search dialog.
14139  *
14140  * Since: 2.10
14141  */
14142 GtkTreeViewSearchPositionFunc
14143 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14144 {
14145   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14146
14147   return tree_view->priv->search_position_func;
14148 }
14149
14150
14151 static void
14152 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14153                                   GtkTreeView *tree_view)
14154 {
14155   if (tree_view->priv->disable_popdown)
14156     return;
14157
14158   if (tree_view->priv->search_entry_changed_id)
14159     {
14160       g_signal_handler_disconnect (tree_view->priv->search_entry,
14161                                    tree_view->priv->search_entry_changed_id);
14162       tree_view->priv->search_entry_changed_id = 0;
14163     }
14164   if (tree_view->priv->typeselect_flush_timeout)
14165     {
14166       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14167       tree_view->priv->typeselect_flush_timeout = 0;
14168     }
14169
14170   if (GTK_WIDGET_VISIBLE (search_dialog))
14171     {
14172       /* send focus-in event */
14173       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14174       gtk_widget_hide (search_dialog);
14175       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14176       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14177     }
14178 }
14179
14180 static void
14181 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14182                                     GtkWidget   *search_dialog,
14183                                     gpointer     user_data)
14184 {
14185   gint x, y;
14186   gint tree_x, tree_y;
14187   gint tree_width, tree_height;
14188   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14189   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14190   GtkRequisition requisition;
14191   gint monitor_num;
14192   GdkRectangle monitor;
14193
14194   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14195   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14196
14197   gtk_widget_realize (search_dialog);
14198
14199   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14200   gdk_drawable_get_size (tree_window,
14201                          &tree_width,
14202                          &tree_height);
14203   gtk_widget_size_request (search_dialog, &requisition);
14204
14205   if (tree_x + tree_width > gdk_screen_get_width (screen))
14206     x = gdk_screen_get_width (screen) - requisition.width;
14207   else if (tree_x + tree_width - requisition.width < 0)
14208     x = 0;
14209   else
14210     x = tree_x + tree_width - requisition.width;
14211
14212   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14213     y = gdk_screen_get_height (screen) - requisition.height;
14214   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14215     y = 0;
14216   else
14217     y = tree_y + tree_height;
14218
14219   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14220 }
14221
14222 static void
14223 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14224                                       GtkMenu  *menu,
14225                                       gpointer  data)
14226 {
14227   GtkTreeView *tree_view = (GtkTreeView *)data;
14228
14229   tree_view->priv->disable_popdown = 1;
14230   g_signal_connect (menu, "hide",
14231                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14232 }
14233
14234 /* Because we're visible but offscreen, we just set a flag in the preedit
14235  * callback.
14236  */
14237 static void
14238 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14239                                       GtkTreeView  *tree_view)
14240 {
14241   tree_view->priv->imcontext_changed = 1;
14242   if (tree_view->priv->typeselect_flush_timeout)
14243     {
14244       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14245       tree_view->priv->typeselect_flush_timeout =
14246         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14247                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14248                        tree_view);
14249     }
14250
14251 }
14252
14253 static void
14254 gtk_tree_view_search_activate (GtkEntry    *entry,
14255                                GtkTreeView *tree_view)
14256 {
14257   GtkTreePath *path;
14258   GtkRBNode *node;
14259   GtkRBTree *tree;
14260
14261   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14262                                     tree_view);
14263
14264   /* If we have a row selected and it's the cursor row, we activate
14265    * the row XXX */
14266   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14267     {
14268       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14269
14270       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14271
14272       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14273         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14274
14275       gtk_tree_path_free (path);
14276     }
14277 }
14278
14279 static gboolean
14280 gtk_tree_view_real_search_enable_popdown (gpointer data)
14281 {
14282   GtkTreeView *tree_view = (GtkTreeView *)data;
14283
14284   tree_view->priv->disable_popdown = 0;
14285
14286   return FALSE;
14287 }
14288
14289 static void
14290 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14291                                      gpointer   data)
14292 {
14293   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14294 }
14295
14296 static gboolean
14297 gtk_tree_view_search_delete_event (GtkWidget *widget,
14298                                    GdkEventAny *event,
14299                                    GtkTreeView *tree_view)
14300 {
14301   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14302
14303   gtk_tree_view_search_dialog_hide (widget, tree_view);
14304
14305   return TRUE;
14306 }
14307
14308 static gboolean
14309 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14310                                          GdkEventButton *event,
14311                                          GtkTreeView *tree_view)
14312 {
14313   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14314
14315   gtk_tree_view_search_dialog_hide (widget, tree_view);
14316
14317   if (event->window == tree_view->priv->bin_window)
14318     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14319
14320   return TRUE;
14321 }
14322
14323 static gboolean
14324 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14325                                    GdkEventScroll *event,
14326                                    GtkTreeView *tree_view)
14327 {
14328   gboolean retval = FALSE;
14329
14330   if (event->direction == GDK_SCROLL_UP)
14331     {
14332       gtk_tree_view_search_move (widget, tree_view, TRUE);
14333       retval = TRUE;
14334     }
14335   else if (event->direction == GDK_SCROLL_DOWN)
14336     {
14337       gtk_tree_view_search_move (widget, tree_view, FALSE);
14338       retval = TRUE;
14339     }
14340
14341   /* renew the flush timeout */
14342   if (retval && tree_view->priv->typeselect_flush_timeout
14343       && !tree_view->priv->search_custom_entry_set)
14344     {
14345       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14346       tree_view->priv->typeselect_flush_timeout =
14347         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14348                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14349                        tree_view);
14350     }
14351
14352   return retval;
14353 }
14354
14355 static gboolean
14356 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14357                                       GdkEventKey *event,
14358                                       GtkTreeView *tree_view)
14359 {
14360   gboolean retval = FALSE;
14361
14362   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14363   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14364
14365   /* close window and cancel the search */
14366   if (!tree_view->priv->search_custom_entry_set
14367       && (event->keyval == GDK_Escape ||
14368           event->keyval == GDK_Tab ||
14369             event->keyval == GDK_KP_Tab ||
14370             event->keyval == GDK_ISO_Left_Tab))
14371     {
14372       gtk_tree_view_search_dialog_hide (widget, tree_view);
14373       return TRUE;
14374     }
14375
14376   /* select previous matching iter */
14377   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14378     {
14379       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14380         gtk_widget_error_bell (widget);
14381
14382       retval = TRUE;
14383     }
14384
14385   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK))
14386       && (event->keyval == GDK_g || event->keyval == GDK_G))
14387     {
14388       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14389         gtk_widget_error_bell (widget);
14390
14391       retval = TRUE;
14392     }
14393
14394   /* select next matching iter */
14395   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14396     {
14397       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14398         gtk_widget_error_bell (widget);
14399
14400       retval = TRUE;
14401     }
14402
14403   if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == GTK_DEFAULT_ACCEL_MOD_MASK)
14404       && (event->keyval == GDK_g || event->keyval == GDK_G))
14405     {
14406       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14407         gtk_widget_error_bell (widget);
14408
14409       retval = TRUE;
14410     }
14411
14412   /* renew the flush timeout */
14413   if (retval && tree_view->priv->typeselect_flush_timeout
14414       && !tree_view->priv->search_custom_entry_set)
14415     {
14416       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14417       tree_view->priv->typeselect_flush_timeout =
14418         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14419                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14420                        tree_view);
14421     }
14422
14423   return retval;
14424 }
14425
14426 /*  this function returns FALSE if there is a search string but
14427  *  nothing was found, and TRUE otherwise.
14428  */
14429 static gboolean
14430 gtk_tree_view_search_move (GtkWidget   *window,
14431                            GtkTreeView *tree_view,
14432                            gboolean     up)
14433 {
14434   gboolean ret;
14435   gint len;
14436   gint count = 0;
14437   const gchar *text;
14438   GtkTreeIter iter;
14439   GtkTreeModel *model;
14440   GtkTreeSelection *selection;
14441
14442   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14443
14444   g_return_val_if_fail (text != NULL, FALSE);
14445
14446   len = strlen (text);
14447
14448   if (up && tree_view->priv->selected_iter == 1)
14449     return strlen (text) < 1;
14450
14451   len = strlen (text);
14452
14453   if (len < 1)
14454     return TRUE;
14455
14456   model = gtk_tree_view_get_model (tree_view);
14457   selection = gtk_tree_view_get_selection (tree_view);
14458
14459   /* search */
14460   gtk_tree_selection_unselect_all (selection);
14461   if (!gtk_tree_model_get_iter_first (model, &iter))
14462     return TRUE;
14463
14464   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14465                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14466
14467   if (ret)
14468     {
14469       /* found */
14470       tree_view->priv->selected_iter += up?(-1):(1);
14471       return TRUE;
14472     }
14473   else
14474     {
14475       /* return to old iter */
14476       count = 0;
14477       gtk_tree_model_get_iter_first (model, &iter);
14478       gtk_tree_view_search_iter (model, selection,
14479                                  &iter, text,
14480                                  &count, tree_view->priv->selected_iter);
14481       return FALSE;
14482     }
14483 }
14484
14485 static gboolean
14486 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14487                                  gint          column,
14488                                  const gchar  *key,
14489                                  GtkTreeIter  *iter,
14490                                  gpointer      search_data)
14491 {
14492   gboolean retval = TRUE;
14493   const gchar *str;
14494   gchar *normalized_string;
14495   gchar *normalized_key;
14496   gchar *case_normalized_string = NULL;
14497   gchar *case_normalized_key = NULL;
14498   GValue value = {0,};
14499   GValue transformed = {0,};
14500
14501   gtk_tree_model_get_value (model, iter, column, &value);
14502
14503   g_value_init (&transformed, G_TYPE_STRING);
14504
14505   if (!g_value_transform (&value, &transformed))
14506     {
14507       g_value_unset (&value);
14508       return TRUE;
14509     }
14510
14511   g_value_unset (&value);
14512
14513   str = g_value_get_string (&transformed);
14514   if (!str)
14515     {
14516       g_value_unset (&transformed);
14517       return TRUE;
14518     }
14519
14520   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14521   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14522
14523   if (normalized_string && normalized_key)
14524     {
14525       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14526       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14527
14528       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14529         retval = FALSE;
14530     }
14531
14532   g_value_unset (&transformed);
14533   g_free (normalized_key);
14534   g_free (normalized_string);
14535   g_free (case_normalized_key);
14536   g_free (case_normalized_string);
14537
14538   return retval;
14539 }
14540
14541 static gboolean
14542 gtk_tree_view_search_iter (GtkTreeModel     *model,
14543                            GtkTreeSelection *selection,
14544                            GtkTreeIter      *iter,
14545                            const gchar      *text,
14546                            gint             *count,
14547                            gint              n)
14548 {
14549   GtkRBTree *tree = NULL;
14550   GtkRBNode *node = NULL;
14551   GtkTreePath *path;
14552
14553   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14554
14555   path = gtk_tree_model_get_path (model, iter);
14556   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14557
14558   do
14559     {
14560       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14561         {
14562           (*count)++;
14563           if (*count == n)
14564             {
14565               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14566                                             TRUE, 0.5, 0.0);
14567               gtk_tree_selection_select_iter (selection, iter);
14568               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14569
14570               if (path)
14571                 gtk_tree_path_free (path);
14572
14573               return TRUE;
14574             }
14575         }
14576
14577       if (node->children)
14578         {
14579           gboolean has_child;
14580           GtkTreeIter tmp;
14581
14582           tree = node->children;
14583           node = tree->root;
14584
14585           while (node->left != tree->nil)
14586             node = node->left;
14587
14588           tmp = *iter;
14589           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14590           gtk_tree_path_down (path);
14591
14592           /* sanity check */
14593           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14594         }
14595       else
14596         {
14597           gboolean done = FALSE;
14598
14599           do
14600             {
14601               node = _gtk_rbtree_next (tree, node);
14602
14603               if (node)
14604                 {
14605                   gboolean has_next;
14606
14607                   has_next = gtk_tree_model_iter_next (model, iter);
14608
14609                   done = TRUE;
14610                   gtk_tree_path_next (path);
14611
14612                   /* sanity check */
14613                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14614                 }
14615               else
14616                 {
14617                   gboolean has_parent;
14618                   GtkTreeIter tmp_iter = *iter;
14619
14620                   node = tree->parent_node;
14621                   tree = tree->parent_tree;
14622
14623                   if (!tree)
14624                     {
14625                       if (path)
14626                         gtk_tree_path_free (path);
14627
14628                       /* we've run out of tree, done with this func */
14629                       return FALSE;
14630                     }
14631
14632                   has_parent = gtk_tree_model_iter_parent (model,
14633                                                            iter,
14634                                                            &tmp_iter);
14635                   gtk_tree_path_up (path);
14636
14637                   /* sanity check */
14638                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14639                 }
14640             }
14641           while (!done);
14642         }
14643     }
14644   while (1);
14645
14646   return FALSE;
14647 }
14648
14649 static void
14650 gtk_tree_view_search_init (GtkWidget   *entry,
14651                            GtkTreeView *tree_view)
14652 {
14653   gint ret;
14654   gint count = 0;
14655   const gchar *text;
14656   GtkTreeIter iter;
14657   GtkTreeModel *model;
14658   GtkTreeSelection *selection;
14659
14660   g_return_if_fail (GTK_IS_ENTRY (entry));
14661   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14662
14663   text = gtk_entry_get_text (GTK_ENTRY (entry));
14664
14665   model = gtk_tree_view_get_model (tree_view);
14666   selection = gtk_tree_view_get_selection (tree_view);
14667
14668   /* search */
14669   gtk_tree_selection_unselect_all (selection);
14670   if (tree_view->priv->typeselect_flush_timeout
14671       && !tree_view->priv->search_custom_entry_set)
14672     {
14673       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14674       tree_view->priv->typeselect_flush_timeout =
14675         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14676                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14677                        tree_view);
14678     }
14679
14680   if (*text == '\0')
14681     return;
14682
14683   if (!gtk_tree_model_get_iter_first (model, &iter))
14684     return;
14685
14686   ret = gtk_tree_view_search_iter (model, selection,
14687                                    &iter, text,
14688                                    &count, 1);
14689
14690   if (ret)
14691     tree_view->priv->selected_iter = 1;
14692 }
14693
14694 static void
14695 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14696                              GtkTreeView     *tree_view)
14697 {
14698   if (tree_view->priv->edited_column == NULL)
14699     return;
14700
14701   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14702   tree_view->priv->edited_column = NULL;
14703
14704   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14705     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14706
14707   g_signal_handlers_disconnect_by_func (cell_editable,
14708                                         gtk_tree_view_remove_widget,
14709                                         tree_view);
14710
14711   gtk_container_remove (GTK_CONTAINER (tree_view),
14712                         GTK_WIDGET (cell_editable));
14713
14714   /* FIXME should only redraw a single node */
14715   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14716 }
14717
14718 static gboolean
14719 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14720                              GtkTreePath *cursor_path)
14721 {
14722   GtkTreeIter iter;
14723   GdkRectangle background_area;
14724   GdkRectangle cell_area;
14725   GtkCellEditable *editable_widget = NULL;
14726   gchar *path_string;
14727   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14728   gint retval = FALSE;
14729   GtkRBTree *cursor_tree;
14730   GtkRBNode *cursor_node;
14731
14732   g_assert (tree_view->priv->focus_column);
14733
14734   if (! GTK_WIDGET_REALIZED (tree_view))
14735     return FALSE;
14736
14737   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14738       cursor_node == NULL)
14739     return FALSE;
14740
14741   path_string = gtk_tree_path_to_string (cursor_path);
14742   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14743
14744   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14745
14746   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14747                                            tree_view->priv->model,
14748                                            &iter,
14749                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14750                                            cursor_node->children?TRUE:FALSE);
14751   gtk_tree_view_get_background_area (tree_view,
14752                                      cursor_path,
14753                                      tree_view->priv->focus_column,
14754                                      &background_area);
14755   gtk_tree_view_get_cell_area (tree_view,
14756                                cursor_path,
14757                                tree_view->priv->focus_column,
14758                                &cell_area);
14759
14760   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14761                                         &editable_widget,
14762                                         NULL,
14763                                         path_string,
14764                                         &background_area,
14765                                         &cell_area,
14766                                         flags))
14767     {
14768       retval = TRUE;
14769       if (editable_widget != NULL)
14770         {
14771           gint left, right;
14772           GdkRectangle area;
14773           GtkCellRenderer *cell;
14774
14775           area = cell_area;
14776           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14777
14778           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14779
14780           area.x += left;
14781           area.width -= right + left;
14782
14783           gtk_tree_view_real_start_editing (tree_view,
14784                                             tree_view->priv->focus_column,
14785                                             cursor_path,
14786                                             editable_widget,
14787                                             &area,
14788                                             NULL,
14789                                             flags);
14790         }
14791
14792     }
14793   g_free (path_string);
14794   return retval;
14795 }
14796
14797 static void
14798 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14799                                   GtkTreeViewColumn *column,
14800                                   GtkTreePath       *path,
14801                                   GtkCellEditable   *cell_editable,
14802                                   GdkRectangle      *cell_area,
14803                                   GdkEvent          *event,
14804                                   guint              flags)
14805 {
14806   gint pre_val = tree_view->priv->vadjustment->value;
14807   GtkRequisition requisition;
14808
14809   tree_view->priv->edited_column = column;
14810   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14811
14812   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14813   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14814
14815   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14816
14817   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14818
14819   if (requisition.height < cell_area->height)
14820     {
14821       gint diff = cell_area->height - requisition.height;
14822       gtk_tree_view_put (tree_view,
14823                          GTK_WIDGET (cell_editable),
14824                          cell_area->x, cell_area->y + diff/2,
14825                          cell_area->width, requisition.height);
14826     }
14827   else
14828     {
14829       gtk_tree_view_put (tree_view,
14830                          GTK_WIDGET (cell_editable),
14831                          cell_area->x, cell_area->y,
14832                          cell_area->width, cell_area->height);
14833     }
14834
14835   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14836                                    (GdkEvent *)event);
14837
14838   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14839   g_signal_connect (cell_editable, "remove-widget",
14840                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14841 }
14842
14843 static void
14844 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14845                             gboolean     cancel_editing)
14846 {
14847   GtkTreeViewColumn *column;
14848   GtkCellRenderer *cell;
14849
14850   if (tree_view->priv->edited_column == NULL)
14851     return;
14852
14853   /*
14854    * This is very evil. We need to do this, because
14855    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14856    * later on. If gtk_tree_view_row_changed notices
14857    * tree_view->priv->edited_column != NULL, it'll call
14858    * gtk_tree_view_stop_editing again. Bad things will happen then.
14859    *
14860    * Please read that again if you intend to modify anything here.
14861    */
14862
14863   column = tree_view->priv->edited_column;
14864   tree_view->priv->edited_column = NULL;
14865
14866   cell = _gtk_tree_view_column_get_edited_cell (column);
14867   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14868
14869   if (!cancel_editing)
14870     gtk_cell_editable_editing_done (column->editable_widget);
14871
14872   tree_view->priv->edited_column = column;
14873
14874   gtk_cell_editable_remove_widget (column->editable_widget);
14875 }
14876
14877
14878 /**
14879  * gtk_tree_view_set_hover_selection:
14880  * @tree_view: a #GtkTreeView
14881  * @hover: %TRUE to enable hover selection mode
14882  *
14883  * Enables of disables the hover selection mode of @tree_view.
14884  * Hover selection makes the selected row follow the pointer.
14885  * Currently, this works only for the selection modes
14886  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14887  *
14888  * Since: 2.6
14889  **/
14890 void
14891 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14892                                    gboolean     hover)
14893 {
14894   hover = hover != FALSE;
14895
14896   if (hover != tree_view->priv->hover_selection)
14897     {
14898       tree_view->priv->hover_selection = hover;
14899
14900       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14901     }
14902 }
14903
14904 /**
14905  * gtk_tree_view_get_hover_selection:
14906  * @tree_view: a #GtkTreeView
14907  *
14908  * Returns whether hover selection mode is turned on for @tree_view.
14909  *
14910  * Return value: %TRUE if @tree_view is in hover selection mode
14911  *
14912  * Since: 2.6
14913  **/
14914 gboolean
14915 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14916 {
14917   return tree_view->priv->hover_selection;
14918 }
14919
14920 /**
14921  * gtk_tree_view_set_hover_expand:
14922  * @tree_view: a #GtkTreeView
14923  * @expand: %TRUE to enable hover selection mode
14924  *
14925  * Enables of disables the hover expansion mode of @tree_view.
14926  * Hover expansion makes rows expand or collapse if the pointer
14927  * moves over them.
14928  *
14929  * Since: 2.6
14930  **/
14931 void
14932 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14933                                 gboolean     expand)
14934 {
14935   expand = expand != FALSE;
14936
14937   if (expand != tree_view->priv->hover_expand)
14938     {
14939       tree_view->priv->hover_expand = expand;
14940
14941       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14942     }
14943 }
14944
14945 /**
14946  * gtk_tree_view_get_hover_expand:
14947  * @tree_view: a #GtkTreeView
14948  *
14949  * Returns whether hover expansion mode is turned on for @tree_view.
14950  *
14951  * Return value: %TRUE if @tree_view is in hover expansion mode
14952  *
14953  * Since: 2.6
14954  **/
14955 gboolean
14956 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14957 {
14958   return tree_view->priv->hover_expand;
14959 }
14960
14961 /**
14962  * gtk_tree_view_set_rubber_banding:
14963  * @tree_view: a #GtkTreeView
14964  * @enable: %TRUE to enable rubber banding
14965  *
14966  * Enables or disables rubber banding in @tree_view.  If the selection mode
14967  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14968  * multiple rows by dragging the mouse.
14969  *
14970  * Since: 2.10
14971  **/
14972 void
14973 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14974                                   gboolean     enable)
14975 {
14976   enable = enable != FALSE;
14977
14978   if (enable != tree_view->priv->rubber_banding_enable)
14979     {
14980       tree_view->priv->rubber_banding_enable = enable;
14981
14982       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14983     }
14984 }
14985
14986 /**
14987  * gtk_tree_view_get_rubber_banding:
14988  * @tree_view: a #GtkTreeView
14989  *
14990  * Returns whether rubber banding is turned on for @tree_view.  If the
14991  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14992  * user to select multiple rows by dragging the mouse.
14993  *
14994  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14995  *
14996  * Since: 2.10
14997  **/
14998 gboolean
14999 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
15000 {
15001   return tree_view->priv->rubber_banding_enable;
15002 }
15003
15004 /**
15005  * gtk_tree_view_is_rubber_banding_active:
15006  * @tree_view: a #GtkTreeView
15007  *
15008  * Returns whether a rubber banding operation is currently being done
15009  * in @tree_view.
15010  *
15011  * Return value: %TRUE if a rubber banding operation is currently being
15012  * done in @tree_view.
15013  *
15014  * Since: 2.12
15015  **/
15016 gboolean
15017 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
15018 {
15019   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15020
15021   if (tree_view->priv->rubber_banding_enable
15022       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
15023     return TRUE;
15024
15025   return FALSE;
15026 }
15027
15028 /**
15029  * gtk_tree_view_get_row_separator_func:
15030  * @tree_view: a #GtkTreeView
15031  *
15032  * Returns the current row separator function.
15033  *
15034  * Return value: the current row separator function.
15035  *
15036  * Since: 2.6
15037  **/
15038 GtkTreeViewRowSeparatorFunc
15039 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
15040 {
15041   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
15042
15043   return tree_view->priv->row_separator_func;
15044 }
15045
15046 /**
15047  * gtk_tree_view_set_row_separator_func:
15048  * @tree_view: a #GtkTreeView
15049  * @func: a #GtkTreeViewRowSeparatorFunc
15050  * @data: user data to pass to @func, or %NULL
15051  * @destroy: destroy notifier for @data, or %NULL
15052  *
15053  * Sets the row separator function, which is used to determine
15054  * whether a row should be drawn as a separator. If the row separator
15055  * function is %NULL, no separators are drawn. This is the default value.
15056  *
15057  * Since: 2.6
15058  **/
15059 void
15060 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
15061                                       GtkTreeViewRowSeparatorFunc  func,
15062                                       gpointer                     data,
15063                                       GDestroyNotify               destroy)
15064 {
15065   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15066
15067   if (tree_view->priv->row_separator_destroy)
15068     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15069
15070   tree_view->priv->row_separator_func = func;
15071   tree_view->priv->row_separator_data = data;
15072   tree_view->priv->row_separator_destroy = destroy;
15073
15074   /* Have the tree recalculate heights */
15075   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
15076   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
15077 }
15078
15079
15080 static void
15081 gtk_tree_view_grab_notify (GtkWidget *widget,
15082                            gboolean   was_grabbed)
15083 {
15084   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15085
15086   tree_view->priv->in_grab = !was_grabbed;
15087
15088   if (!was_grabbed)
15089     {
15090       tree_view->priv->pressed_button = -1;
15091
15092       if (tree_view->priv->rubber_band_status)
15093         gtk_tree_view_stop_rubber_band (tree_view);
15094     }
15095 }
15096
15097 static void
15098 gtk_tree_view_state_changed (GtkWidget      *widget,
15099                              GtkStateType    previous_state)
15100 {
15101   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15102
15103   if (GTK_WIDGET_REALIZED (widget))
15104     {
15105       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15106       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15107     }
15108
15109   gtk_widget_queue_draw (widget);
15110 }
15111
15112 /**
15113  * gtk_tree_view_get_grid_lines:
15114  * @tree_view: a #GtkTreeView
15115  *
15116  * Returns which grid lines are enabled in @tree_view.
15117  *
15118  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15119  * are enabled.
15120  *
15121  * Since: 2.10
15122  */
15123 GtkTreeViewGridLines
15124 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15125 {
15126   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15127
15128   return tree_view->priv->grid_lines;
15129 }
15130
15131 /**
15132  * gtk_tree_view_set_grid_lines:
15133  * @tree_view: a #GtkTreeView
15134  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15135  * enable.
15136  *
15137  * Sets which grid lines to draw in @tree_view.
15138  *
15139  * Since: 2.10
15140  */
15141 void
15142 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15143                               GtkTreeViewGridLines   grid_lines)
15144 {
15145   GtkTreeViewPrivate *priv;
15146   GtkWidget *widget;
15147   GtkTreeViewGridLines old_grid_lines;
15148
15149   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15150
15151   priv = tree_view->priv;
15152   widget = GTK_WIDGET (tree_view);
15153
15154   old_grid_lines = priv->grid_lines;
15155   priv->grid_lines = grid_lines;
15156
15157   if (GTK_WIDGET_REALIZED (widget))
15158     {
15159       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15160           priv->grid_line_gc)
15161         {
15162           g_object_unref (priv->grid_line_gc);
15163           priv->grid_line_gc = NULL;
15164         }
15165
15166       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15167           !priv->grid_line_gc)
15168         {
15169           gint line_width;
15170           gint8 *dash_list;
15171
15172           gtk_widget_style_get (widget,
15173                                 "grid-line-width", &line_width,
15174                                 "grid-line-pattern", (gchar *)&dash_list,
15175                                 NULL);
15176
15177           priv->grid_line_gc = gdk_gc_new (widget->window);
15178           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15179
15180           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15181                                       GDK_LINE_ON_OFF_DASH,
15182                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15183           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15184
15185           g_free (dash_list);
15186         }
15187     }
15188
15189   if (old_grid_lines != grid_lines)
15190     {
15191       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15192
15193       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15194     }
15195 }
15196
15197 /**
15198  * gtk_tree_view_get_enable_tree_lines:
15199  * @tree_view: a #GtkTreeView.
15200  *
15201  * Returns whether or not tree lines are drawn in @tree_view.
15202  *
15203  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15204  * otherwise.
15205  *
15206  * Since: 2.10
15207  */
15208 gboolean
15209 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15210 {
15211   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15212
15213   return tree_view->priv->tree_lines_enabled;
15214 }
15215
15216 /**
15217  * gtk_tree_view_set_enable_tree_lines:
15218  * @tree_view: a #GtkTreeView
15219  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15220  *
15221  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15222  * This does not have any visible effects for lists.
15223  *
15224  * Since: 2.10
15225  */
15226 void
15227 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15228                                      gboolean     enabled)
15229 {
15230   GtkTreeViewPrivate *priv;
15231   GtkWidget *widget;
15232   gboolean was_enabled;
15233
15234   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15235
15236   enabled = enabled != FALSE;
15237
15238   priv = tree_view->priv;
15239   widget = GTK_WIDGET (tree_view);
15240
15241   was_enabled = priv->tree_lines_enabled;
15242
15243   priv->tree_lines_enabled = enabled;
15244
15245   if (GTK_WIDGET_REALIZED (widget))
15246     {
15247       if (!enabled && priv->tree_line_gc)
15248         {
15249           g_object_unref (priv->tree_line_gc);
15250           priv->tree_line_gc = NULL;
15251         }
15252
15253       if (enabled && !priv->tree_line_gc)
15254         {
15255           gint line_width;
15256           gint8 *dash_list;
15257           gtk_widget_style_get (widget,
15258                                 "tree-line-width", &line_width,
15259                                 "tree-line-pattern", (gchar *)&dash_list,
15260                                 NULL);
15261
15262           priv->tree_line_gc = gdk_gc_new (widget->window);
15263           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15264
15265           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15266                                       GDK_LINE_ON_OFF_DASH,
15267                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15268           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15269
15270           g_free (dash_list);
15271         }
15272     }
15273
15274   if (was_enabled != enabled)
15275     {
15276       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15277
15278       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15279     }
15280 }
15281
15282
15283 /**
15284  * gtk_tree_view_set_show_expanders:
15285  * @tree_view: a #GtkTreeView
15286  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15287  *
15288  * Sets whether to draw and enable expanders and indent child rows in
15289  * @tree_view.  When disabled there will be no expanders visible in trees
15290  * and there will be no way to expand and collapse rows by default.  Also
15291  * note that hiding the expanders will disable the default indentation.  You
15292  * can set a custom indentation in this case using
15293  * gtk_tree_view_set_level_indentation().
15294  * This does not have any visible effects for lists.
15295  *
15296  * Since: 2.12
15297  */
15298 void
15299 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15300                                   gboolean     enabled)
15301 {
15302   gboolean was_enabled;
15303
15304   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15305
15306   enabled = enabled != FALSE;
15307   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15308
15309   if (enabled)
15310     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15311   else
15312     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15313
15314   if (enabled != was_enabled)
15315     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15316 }
15317
15318 /**
15319  * gtk_tree_view_get_show_expanders:
15320  * @tree_view: a #GtkTreeView.
15321  *
15322  * Returns whether or not expanders are drawn in @tree_view.
15323  *
15324  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15325  * otherwise.
15326  *
15327  * Since: 2.12
15328  */
15329 gboolean
15330 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15331 {
15332   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15333
15334   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15335 }
15336
15337 /**
15338  * gtk_tree_view_set_level_indentation:
15339  * @tree_view: a #GtkTreeView
15340  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15341  *
15342  * Sets the amount of extra indentation for child levels to use in @tree_view
15343  * in addition to the default indentation.  The value should be specified in
15344  * pixels, a value of 0 disables this feature and in this case only the default
15345  * indentation will be used.
15346  * This does not have any visible effects for lists.
15347  *
15348  * Since: 2.12
15349  */
15350 void
15351 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15352                                      gint         indentation)
15353 {
15354   tree_view->priv->level_indentation = indentation;
15355
15356   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15357 }
15358
15359 /**
15360  * gtk_tree_view_get_level_indentation:
15361  * @tree_view: a #GtkTreeView.
15362  *
15363  * Returns the amount, in pixels, of extra indentation for child levels
15364  * in @tree_view.
15365  *
15366  * Return value: the amount of extra indentation for child levels in
15367  * @tree_view.  A return value of 0 means that this feature is disabled.
15368  *
15369  * Since: 2.12
15370  */
15371 gint
15372 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15373 {
15374   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15375
15376   return tree_view->priv->level_indentation;
15377 }
15378
15379 /**
15380  * gtk_tree_view_set_tooltip_row:
15381  * @tree_view: a #GtkTreeView
15382  * @tooltip: a #GtkTooltip
15383  * @path: a #GtkTreePath
15384  *
15385  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15386  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15387  * See also gtk_tooltip_set_tip_area().
15388  *
15389  * Since: 2.12
15390  */
15391 void
15392 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15393                                GtkTooltip  *tooltip,
15394                                GtkTreePath *path)
15395 {
15396   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15397   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15398
15399   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15400 }
15401
15402 /**
15403  * gtk_tree_view_set_tooltip_cell:
15404  * @tree_view: a #GtkTreeView
15405  * @tooltip: a #GtkTooltip
15406  * @path: a #GtkTreePath or %NULL
15407  * @column: a #GtkTreeViewColumn or %NULL
15408  * @cell: a #GtkCellRenderer or %NULL
15409  *
15410  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15411  * in common.  For example if @path is %NULL and @column is set, the tip
15412  * area will be set to the full area covered by @column.  See also
15413  * gtk_tooltip_set_tip_area().
15414  *
15415  * Note that if @path is not specified and @cell is set and part of a column
15416  * containing the expander, the tooltip might not show and hide at the correct
15417  * position.  In such cases @path must be set to the current node under the
15418  * mouse cursor for this function to operate correctly.
15419  *
15420  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15421  *
15422  * Since: 2.12
15423  */
15424 void
15425 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15426                                 GtkTooltip        *tooltip,
15427                                 GtkTreePath       *path,
15428                                 GtkTreeViewColumn *column,
15429                                 GtkCellRenderer   *cell)
15430 {
15431   GdkRectangle rect;
15432
15433   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15434   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15435   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15436   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15437
15438   /* Determine x values. */
15439   if (column && cell)
15440     {
15441       GdkRectangle tmp;
15442       gint start, width;
15443
15444       /* We always pass in path here, whether it is NULL or not.
15445        * For cells in expander columns path must be specified so that
15446        * we can correctly account for the indentation.  This also means
15447        * that the tooltip is constrained vertically by the "Determine y
15448        * values" code below; this is not a real problem since cells actually
15449        * don't stretch vertically in constrast to columns.
15450        */
15451       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15452       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15453
15454       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15455                                                          tmp.x + start, 0,
15456                                                          &rect.x, NULL);
15457       rect.width = width;
15458     }
15459   else if (column)
15460     {
15461       GdkRectangle tmp;
15462
15463       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15464       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15465                                                          tmp.x, 0,
15466                                                          &rect.x, NULL);
15467       rect.width = tmp.width;
15468     }
15469   else
15470     {
15471       rect.x = 0;
15472       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15473     }
15474
15475   /* Determine y values. */
15476   if (path)
15477     {
15478       GdkRectangle tmp;
15479
15480       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15481       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15482                                                          0, tmp.y,
15483                                                          NULL, &rect.y);
15484       rect.height = tmp.height;
15485     }
15486   else
15487     {
15488       rect.y = 0;
15489       rect.height = tree_view->priv->vadjustment->page_size;
15490     }
15491
15492   gtk_tooltip_set_tip_area (tooltip, &rect);
15493 }
15494
15495 /**
15496  * gtk_tree_view_get_tooltip_context:
15497  * @tree_view: a #GtkTreeView
15498  * @x: the x coordinate (relative to widget coordinates)
15499  * @y: the y coordinate (relative to widget coordinates)
15500  * @keyboard_tip: whether this is a keyboard tooltip or not
15501  * @model: a pointer to receive a #GtkTreeModel or %NULL
15502  * @path: a pointer to receive a #GtkTreePath or %NULL
15503  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15504  *
15505  * This function is supposed to be used in a #GtkWidget::query-tooltip
15506  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15507  * which are received in the signal handler, should be passed to this
15508  * function without modification.
15509  *
15510  * The return value indicates whether there is a tree view row at the given
15511  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15512  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15513  * @model, @path and @iter which have been provided will be set to point to
15514  * that row and the corresponding model.  @x and @y will always be converted
15515  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15516  *
15517  * Return value: whether or not the given tooltip context points to a row.
15518  *
15519  * Since: 2.12
15520  */
15521 gboolean
15522 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15523                                    gint          *x,
15524                                    gint          *y,
15525                                    gboolean       keyboard_tip,
15526                                    GtkTreeModel **model,
15527                                    GtkTreePath  **path,
15528                                    GtkTreeIter   *iter)
15529 {
15530   GtkTreePath *tmppath = NULL;
15531
15532   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15533   g_return_val_if_fail (x != NULL, FALSE);
15534   g_return_val_if_fail (y != NULL, FALSE);
15535
15536   if (keyboard_tip)
15537     {
15538       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15539
15540       if (!tmppath)
15541         return FALSE;
15542     }
15543   else
15544     {
15545       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15546                                                          x, y);
15547
15548       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15549                                           &tmppath, NULL, NULL, NULL))
15550         return FALSE;
15551     }
15552
15553   if (model)
15554     *model = gtk_tree_view_get_model (tree_view);
15555
15556   if (iter)
15557     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15558                              iter, tmppath);
15559
15560   if (path)
15561     *path = tmppath;
15562   else
15563     gtk_tree_path_free (tmppath);
15564
15565   return TRUE;
15566 }
15567
15568 static gboolean
15569 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15570                                     gint        x,
15571                                     gint        y,
15572                                     gboolean    keyboard_tip,
15573                                     GtkTooltip *tooltip,
15574                                     gpointer    data)
15575 {
15576   GValue value = { 0, };
15577   GValue transformed = { 0, };
15578   GtkTreeIter iter;
15579   GtkTreePath *path;
15580   GtkTreeModel *model;
15581   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15582
15583   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15584                                           &x, &y,
15585                                           keyboard_tip,
15586                                           &model, &path, &iter))
15587     return FALSE;
15588
15589   gtk_tree_model_get_value (model, &iter,
15590                             tree_view->priv->tooltip_column, &value);
15591
15592   g_value_init (&transformed, G_TYPE_STRING);
15593
15594   if (!g_value_transform (&value, &transformed))
15595     {
15596       g_value_unset (&value);
15597       gtk_tree_path_free (path);
15598
15599       return FALSE;
15600     }
15601
15602   g_value_unset (&value);
15603
15604   if (!g_value_get_string (&transformed))
15605     {
15606       g_value_unset (&transformed);
15607       gtk_tree_path_free (path);
15608
15609       return FALSE;
15610     }
15611
15612   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15613   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15614
15615   gtk_tree_path_free (path);
15616   g_value_unset (&transformed);
15617
15618   return TRUE;
15619 }
15620
15621 /**
15622  * gtk_tree_view_set_tooltip_column:
15623  * @tree_view: a #GtkTreeView
15624  * @column: an integer, which is a valid column number for @tree_view's model
15625  *
15626  * If you only plan to have simple (text-only) tooltips on full rows, you
15627  * can use this function to have #GtkTreeView handle these automatically
15628  * for you. @column should be set to the column in @tree_view's model
15629  * containing the tooltip texts, or -1 to disable this feature.
15630  *
15631  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15632  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15633  *
15634  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15635  * so &amp;, &lt;, etc have to be escaped in the text.
15636  *
15637  * Since: 2.12
15638  */
15639 void
15640 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15641                                   gint         column)
15642 {
15643   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15644
15645   if (column == tree_view->priv->tooltip_column)
15646     return;
15647
15648   if (column == -1)
15649     {
15650       g_signal_handlers_disconnect_by_func (tree_view,
15651                                             gtk_tree_view_set_tooltip_query_cb,
15652                                             NULL);
15653       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15654     }
15655   else
15656     {
15657       if (tree_view->priv->tooltip_column == -1)
15658         {
15659           g_signal_connect (tree_view, "query-tooltip",
15660                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15661           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15662         }
15663     }
15664
15665   tree_view->priv->tooltip_column = column;
15666   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15667 }
15668
15669 /**
15670  * gtk_tree_view_get_tooltip_column:
15671  * @tree_view: a #GtkTreeView
15672  *
15673  * Returns the column of @tree_view's model which is being used for
15674  * displaying tooltips on @tree_view's rows.
15675  *
15676  * Return value: the index of the tooltip column that is currently being
15677  * used, or -1 if this is disabled.
15678  *
15679  * Since: 2.12
15680  */
15681 gint
15682 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15683 {
15684   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15685
15686   return tree_view->priv->tooltip_column;
15687 }
15688
15689 #define __GTK_TREE_VIEW_C__
15690 #include "gtkaliasdef.c"