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

   1 /* gtktreeview.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20
  21 #include "config.h"
  22 #include <string.h>
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "gtktreeview.h"
  26 #include "gtkrbtree.h"
  27 #include "gtktreednd.h"
  28 #include "gtktreeprivate.h"
  29 #include "gtkcellrenderer.h"
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkbuildable.h"
  33 #include "gtkbutton.h"
  34 #include "gtkalignment.h"
  35 #include "gtklabel.h"
  36 #include "gtkhbox.h"
  37 #include "gtkvbox.h"
  38 #include "gtkarrow.h"
  39 #include "gtkintl.h"
  40 #include "gtkbindings.h"
  41 #include "gtkcontainer.h"
  42 #include "gtkentry.h"
  43 #include "gtkframe.h"
  44 #include "gtktreemodelsort.h"
  45 #include "gtktooltip.h"
  46 #include "gtkprivate.h"
  47 #include "gtkalias.h"
  48
  49 #define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
  50 #define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
  51 #define GTK_TREE_VIEW_TIME_MS_PER_IDLE 30
  52 #define SCROLL_EDGE_SIZE 15
  53 #define EXPANDER_EXTRA_PADDING 4
  54 #define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
  55 #define AUTO_EXPAND_TIMEOUT 500
  56
  57 /* The "background" areas of all rows/cells add up to cover the entire tree.
  58  * The background includes all inter-row and inter-cell spacing.
  59  * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
  60  * i.e. just the cells, no spacing.
  61  */
  62
  63 #define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
  64 #define CELL_HEIGHT(node, separator) ((BACKGROUND_HEIGHT (node)) - (separator))
  65
  66 /* Translate from bin_window coordinates to rbtree (tree coordinates) and
  67  * vice versa.
  68  */
  69 #define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
  70 #define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)
  71
  72 /* This is in bin_window coordinates */
  73 #define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, _gtk_rbtree_node_find_offset ((tree), (node))))
  74 #define CELL_FIRST_PIXEL(tree_view,tree,node,separator) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + separator/2)
  75
  76 #define ROW_HEIGHT(tree_view,height) \
  77   ((height > 0) ? (height) : (tree_view)->priv->expander_size)
  78
  79
  80 typedef struct _GtkTreeViewChild GtkTreeViewChild;
  81 struct _GtkTreeViewChild
  82 {
  83   GtkWidget *widget;
  84   gint x;
  85   gint y;
  86   gint width;
  87   gint height;
  88 };
  89
  90
  91 typedef struct _TreeViewDragInfo TreeViewDragInfo;
  92 struct _TreeViewDragInfo
  93 {
  94   GdkModifierType start_button_mask;
  95   GtkTargetList *_unused_source_target_list;
  96   GdkDragAction source_actions;
  97
  98   GtkTargetList *_unused_dest_target_list;
  99
 100   guint source_set : 1;
 101   guint dest_set : 1;
 102 };
 103
 104
 105 /* Signals */
 106 enum
 107 {
 108   ROW_ACTIVATED,
 109   TEST_EXPAND_ROW,
 110   TEST_COLLAPSE_ROW,
 111   ROW_EXPANDED,
 112   ROW_COLLAPSED,
 113   COLUMNS_CHANGED,
 114   CURSOR_CHANGED,
 115   MOVE_CURSOR,
 116   SELECT_ALL,
 117   UNSELECT_ALL,
 118   SELECT_CURSOR_ROW,
 119   TOGGLE_CURSOR_ROW,
 120   EXPAND_COLLAPSE_CURSOR_ROW,
 121   SELECT_CURSOR_PARENT,
 122   START_INTERACTIVE_SEARCH,
 123   LAST_SIGNAL
 124 };
 125
 126 /* Properties */
 127 enum {
 128   PROP_0,
 129   PROP_MODEL,
 130   PROP_HADJUSTMENT,
 131   PROP_VADJUSTMENT,
 132   PROP_HEADERS_VISIBLE,
 133   PROP_HEADERS_CLICKABLE,
 134   PROP_EXPANDER_COLUMN,
 135   PROP_REORDERABLE,
 136   PROP_RULES_HINT,
 137   PROP_ENABLE_SEARCH,
 138   PROP_SEARCH_COLUMN,
 139   PROP_FIXED_HEIGHT_MODE,
 140   PROP_HOVER_SELECTION,
 141   PROP_HOVER_EXPAND,
 142   PROP_SHOW_EXPANDERS,
 143   PROP_LEVEL_INDENTATION,
 144   PROP_RUBBER_BANDING,
 145   PROP_ENABLE_GRID_LINES,
 146   PROP_ENABLE_TREE_LINES,
 147   PROP_TOOLTIP_COLUMN
 148 };
 149
 150 /* object signals */
 151 static void     gtk_tree_view_finalize             (GObject          *object);
 152 static void     gtk_tree_view_set_property         (GObject         *object,
 153                                                     guint            prop_id,
 154                                                     const GValue    *value,
 155                                                     GParamSpec      *pspec);
 156 static void     gtk_tree_view_get_property         (GObject         *object,
 157                                                     guint            prop_id,
 158                                                     GValue          *value,
 159                                                     GParamSpec      *pspec);
 160
 161 /* gtkobject signals */
 162 static void     gtk_tree_view_destroy              (GtkObject        *object);
 163
 164 /* gtkwidget signals */
 165 static void     gtk_tree_view_realize              (GtkWidget        *widget);
 166 static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
 167 static void     gtk_tree_view_map                  (GtkWidget        *widget);
 168 static void     gtk_tree_view_size_request         (GtkWidget        *widget,
 169                                                     GtkRequisition   *requisition);
 170 static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
 171                                                     GtkAllocation    *allocation);
 172 static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
 173                                                     GdkEventExpose   *event);
 174 static gboolean gtk_tree_view_key_press            (GtkWidget        *widget,
 175                                                     GdkEventKey      *event);
 176 static gboolean gtk_tree_view_key_release          (GtkWidget        *widget,
 177                                                     GdkEventKey      *event);
 178 static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
 179                                                     GdkEventMotion   *event);
 180 static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
 181                                                     GdkEventCrossing *event);
 182 static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
 183                                                     GdkEventCrossing *event);
 184 static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
 185                                                     GdkEventButton   *event);
 186 static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
 187                                                     GdkEventButton   *event);
 188 static gboolean gtk_tree_view_grab_broken          (GtkWidget          *widget,
 189                                                     GdkEventGrabBroken *event);
 190 #if 0
 191 static gboolean gtk_tree_view_configure            (GtkWidget         *widget,
 192                                                     GdkEventConfigure *event);
 193 #endif
 194
 195 static void     gtk_tree_view_set_focus_child      (GtkContainer     *container,
 196                                                     GtkWidget        *child);
 197 static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
 198                                                     GdkEventFocus    *event);
 199 static gint     gtk_tree_view_focus                (GtkWidget        *widget,
 200                                                     GtkDirectionType  direction);
 201 static void     gtk_tree_view_grab_focus           (GtkWidget        *widget);
 202 static void     gtk_tree_view_style_set            (GtkWidget        *widget,
 203                                                     GtkStyle         *previous_style);
 204 static void     gtk_tree_view_grab_notify          (GtkWidget        *widget,
 205                                                     gboolean          was_grabbed);
 206 static void     gtk_tree_view_state_changed        (GtkWidget        *widget,
 207                                                     GtkStateType      previous_state);
 208
 209 /* container signals */
 210 static void     gtk_tree_view_remove               (GtkContainer     *container,
 211                                                     GtkWidget        *widget);
 212 static void     gtk_tree_view_forall               (GtkContainer     *container,
 213                                                     gboolean          include_internals,
 214                                                     GtkCallback       callback,
 215                                                     gpointer          callback_data);
 216
 217 /* Source side drag signals */
 218 static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
 219                                             GdkDragContext   *context);
 220 static void gtk_tree_view_drag_end         (GtkWidget        *widget,
 221                                             GdkDragContext   *context);
 222 static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
 223                                             GdkDragContext   *context,
 224                                             GtkSelectionData *selection_data,
 225                                             guint             info,
 226                                             guint             time);
 227 static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
 228                                             GdkDragContext   *context);
 229
 230 /* Target side drag signals */
 231 static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
 232                                                   GdkDragContext   *context,
 233                                                   guint             time);
 234 static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
 235                                                   GdkDragContext   *context,
 236                                                   gint              x,
 237                                                   gint              y,
 238                                                   guint             time);
 239 static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
 240                                                   GdkDragContext   *context,
 241                                                   gint              x,
 242                                                   gint              y,
 243                                                   guint             time);
 244 static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
 245                                                   GdkDragContext   *context,
 246                                                   gint              x,
 247                                                   gint              y,
 248                                                   GtkSelectionData *selection_data,
 249                                                   guint             info,
 250                                                   guint             time);
 251
 252 /* tree_model signals */
 253 static void gtk_tree_view_set_adjustments                 (GtkTreeView     *tree_view,
 254                                                            GtkAdjustment   *hadj,
 255                                                            GtkAdjustment   *vadj);
 256 static gboolean gtk_tree_view_real_move_cursor            (GtkTreeView     *tree_view,
 257                                                            GtkMovementStep  step,
 258                                                            gint             count);
 259 static gboolean gtk_tree_view_real_select_all             (GtkTreeView     *tree_view);
 260 static gboolean gtk_tree_view_real_unselect_all           (GtkTreeView     *tree_view);
 261 static gboolean gtk_tree_view_real_select_cursor_row      (GtkTreeView     *tree_view,
 262                                                            gboolean         start_editing);
 263 static gboolean gtk_tree_view_real_toggle_cursor_row      (GtkTreeView     *tree_view);
 264 static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView     *tree_view,
 265                                                                gboolean         logical,
 266                                                                gboolean         expand,
 267                                                                gboolean         open_all);
 268 static gboolean gtk_tree_view_real_select_cursor_parent   (GtkTreeView     *tree_view);
 269 static void gtk_tree_view_row_changed                     (GtkTreeModel    *model,
 270                                                            GtkTreePath     *path,
 271                                                            GtkTreeIter     *iter,
 272                                                            gpointer         data);
 273 static void gtk_tree_view_row_inserted                    (GtkTreeModel    *model,
 274                                                            GtkTreePath     *path,
 275                                                            GtkTreeIter     *iter,
 276                                                            gpointer         data);
 277 static void gtk_tree_view_row_has_child_toggled           (GtkTreeModel    *model,
 278                                                            GtkTreePath     *path,
 279                                                            GtkTreeIter     *iter,
 280                                                            gpointer         data);
 281 static void gtk_tree_view_row_deleted                     (GtkTreeModel    *model,
 282                                                            GtkTreePath     *path,
 283                                                            gpointer         data);
 284 static void gtk_tree_view_rows_reordered                  (GtkTreeModel    *model,
 285                                                            GtkTreePath     *parent,
 286                                                            GtkTreeIter     *iter,
 287                                                            gint            *new_order,
 288                                                            gpointer         data);
 289
 290 /* Incremental reflow */
 291 static gboolean validate_row             (GtkTreeView *tree_view,
 292                                           GtkRBTree   *tree,
 293                                           GtkRBNode   *node,
 294                                           GtkTreeIter *iter,
 295                                           GtkTreePath *path);
 296 static void     validate_visible_area    (GtkTreeView *tree_view);
 297 static gboolean validate_rows_handler    (GtkTreeView *tree_view);
 298 static gboolean do_validate_rows         (GtkTreeView *tree_view,
 299                                           gboolean     size_request);
 300 static gboolean validate_rows            (GtkTreeView *tree_view);
 301 static gboolean presize_handler_callback (gpointer     data);
 302 static void     install_presize_handler  (GtkTreeView *tree_view);
 303 static void     install_scroll_sync_handler (GtkTreeView *tree_view);
 304 static void     gtk_tree_view_set_top_row   (GtkTreeView *tree_view,
 305                                              GtkTreePath *path,
 306                                              gint         offset);
 307 static void     gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
 308 static void     gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
 309 static void     invalidate_empty_focus      (GtkTreeView *tree_view);
 310
 311 /* Internal functions */
 312 static gboolean gtk_tree_view_is_expander_column             (GtkTreeView        *tree_view,
 313                                                               GtkTreeViewColumn  *column);
 314 static void     gtk_tree_view_add_move_binding               (GtkBindingSet      *binding_set,
 315                                                               guint               keyval,
 316                                                               guint               modmask,
 317                                                               gboolean            add_shifted_binding,
 318                                                               GtkMovementStep     step,
 319                                                               gint                count);
 320 static gint     gtk_tree_view_unref_and_check_selection_tree (GtkTreeView        *tree_view,
 321                                                               GtkRBTree          *tree);
 322 static void     gtk_tree_view_queue_draw_path                (GtkTreeView        *tree_view,
 323                                                               GtkTreePath        *path,
 324                                                               const GdkRectangle *clip_rect);
 325 static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView        *tree_view,
 326                                                               GtkRBTree          *tree,
 327                                                               GtkRBNode          *node,
 328                                                               const GdkRectangle *clip_rect);
 329 static void     gtk_tree_view_draw_arrow                     (GtkTreeView        *tree_view,
 330                                                               GtkRBTree          *tree,
 331                                                               GtkRBNode          *node,
 332                                                               gint                x,
 333                                                               gint                y);
 334 static void     gtk_tree_view_get_arrow_xrange               (GtkTreeView        *tree_view,
 335                                                               GtkRBTree          *tree,
 336                                                               gint               *x1,
 337                                                               gint               *x2);
 338 static gint     gtk_tree_view_new_column_width               (GtkTreeView        *tree_view,
 339                                                               gint                i,
 340                                                               gint               *x);
 341 static void     gtk_tree_view_adjustment_changed             (GtkAdjustment      *adjustment,
 342                                                               GtkTreeView        *tree_view);
 343 static void     gtk_tree_view_build_tree                     (GtkTreeView        *tree_view,
 344                                                               GtkRBTree          *tree,
 345                                                               GtkTreeIter        *iter,
 346                                                               gint                depth,
 347                                                               gboolean            recurse);
 348 static void     gtk_tree_view_clamp_node_visible             (GtkTreeView        *tree_view,
 349                                                               GtkRBTree          *tree,
 350                                                               GtkRBNode          *node);
 351 static void     gtk_tree_view_clamp_column_visible           (GtkTreeView        *tree_view,
 352                                                               GtkTreeViewColumn  *column,
 353                                                               gboolean            focus_to_cell);
 354 static gboolean gtk_tree_view_maybe_begin_dragging_row       (GtkTreeView        *tree_view,
 355                                                               GdkEventMotion     *event);
 356 static void     gtk_tree_view_focus_to_cursor                (GtkTreeView        *tree_view);
 357 static void     gtk_tree_view_move_cursor_up_down            (GtkTreeView        *tree_view,
 358                                                               gint                count);
 359 static void     gtk_tree_view_move_cursor_page_up_down       (GtkTreeView        *tree_view,
 360                                                               gint                count);
 361 static void     gtk_tree_view_move_cursor_left_right         (GtkTreeView        *tree_view,
 362                                                               gint                count);
 363 static void     gtk_tree_view_move_cursor_start_end          (GtkTreeView        *tree_view,
 364                                                               gint                count);
 365 static gboolean gtk_tree_view_real_collapse_row              (GtkTreeView        *tree_view,
 366                                                               GtkTreePath        *path,
 367                                                               GtkRBTree          *tree,
 368                                                               GtkRBNode          *node,
 369                                                               gboolean            animate);
 370 static gboolean gtk_tree_view_real_expand_row                (GtkTreeView        *tree_view,
 371                                                               GtkTreePath        *path,
 372                                                               GtkRBTree          *tree,
 373                                                               GtkRBNode          *node,
 374                                                               gboolean            open_all,
 375                                                               gboolean            animate);
 376 static void     gtk_tree_view_real_set_cursor                (GtkTreeView        *tree_view,
 377                                                               GtkTreePath        *path,
 378                                                               gboolean            clear_and_select,
 379                                                               gboolean            clamp_node);
 380 static gboolean gtk_tree_view_has_special_cell               (GtkTreeView        *tree_view);
 381 static void     column_sizing_notify                         (GObject            *object,
 382                                                               GParamSpec         *pspec,
 383                                                               gpointer            data);
 384 static gboolean expand_collapse_timeout                      (gpointer            data);
 385 static void     add_expand_collapse_timeout                  (GtkTreeView        *tree_view,
 386                                                               GtkRBTree          *tree,
 387                                                               GtkRBNode          *node,
 388                                                               gboolean            expand);
 389 static void     remove_expand_collapse_timeout               (GtkTreeView        *tree_view);
 390 static void     cancel_arrow_animation                       (GtkTreeView        *tree_view);
 391 static gboolean do_expand_collapse                           (GtkTreeView        *tree_view);
 392 static void     gtk_tree_view_stop_rubber_band               (GtkTreeView        *tree_view);
 393
 394 /* interactive search */
 395 static void     gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
 396 static void     gtk_tree_view_search_dialog_hide     (GtkWidget        *search_dialog,
 397                                                          GtkTreeView      *tree_view);
 398 static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
 399                                                          GtkWidget        *search_dialog,
 400                                                          gpointer          user_data);
 401 static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
 402                                                          GtkMenu          *menu,
 403                                                          gpointer          data);
 404 static void     gtk_tree_view_search_preedit_changed    (GtkIMContext     *im_context,
 405                                                          GtkTreeView      *tree_view);
 406 static void     gtk_tree_view_search_activate           (GtkEntry         *entry,
 407                                                          GtkTreeView      *tree_view);
 408 static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
 409 static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
 410                                                          gpointer          data);
 411 static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
 412                                                          GdkEventAny      *event,
 413                                                          GtkTreeView      *tree_view);
 414 static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
 415                                                          GdkEventButton   *event,
 416                                                          GtkTreeView      *tree_view);
 417 static gboolean gtk_tree_view_search_scroll_event       (GtkWidget        *entry,
 418                                                          GdkEventScroll   *event,
 419                                                          GtkTreeView      *tree_view);
 420 static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
 421                                                          GdkEventKey      *event,
 422                                                          GtkTreeView      *tree_view);
 423 static gboolean gtk_tree_view_search_move               (GtkWidget        *window,
 424                                                          GtkTreeView      *tree_view,
 425                                                          gboolean          up);
 426 static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
 427                                                          gint              column,
 428                                                          const gchar      *key,
 429                                                          GtkTreeIter      *iter,
 430                                                          gpointer          search_data);
 431 static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
 432                                                          GtkTreeSelection *selection,
 433                                                          GtkTreeIter      *iter,
 434                                                          const gchar      *text,
 435                                                          gint             *count,
 436                                                          gint              n);
 437 static void     gtk_tree_view_search_init               (GtkWidget        *entry,
 438                                                          GtkTreeView      *tree_view);
 439 static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
 440                                                          GtkWidget        *child_widget,
 441                                                          gint              x,
 442                                                          gint              y,
 443                                                          gint              width,
 444                                                          gint              height);
 445 static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
 446                                                          GtkTreePath      *cursor_path);
 447 static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
 448                                               GtkTreeViewColumn *column,
 449                                               GtkTreePath       *path,
 450                                               GtkCellEditable   *cell_editable,
 451                                               GdkRectangle      *cell_area,
 452                                               GdkEvent          *event,
 453                                               guint              flags);
 454 static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
 455                                                          gboolean     cancel_editing);
 456 static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
 457                                                              gboolean     keybinding);
 458 static gboolean gtk_tree_view_start_interactive_search      (GtkTreeView *tree_view);
 459 static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
 460                                                          GtkTreeViewColumn *column,
 461                                                          gint               drop_position);
 462
 463 /* GtkBuildable */
 464 static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
 465                                                GtkBuilder  *builder,
 466                                                GObject     *child,
 467                                                const gchar *type);
 468 static void gtk_tree_view_buildable_init      (GtkBuildableIface *iface);
 469
 470
 471 static gboolean scroll_row_timeout                   (gpointer     data);
 472 static void     add_scroll_timeout                   (GtkTreeView *tree_view);
 473 static void     remove_scroll_timeout                (GtkTreeView *tree_view);
 474
 475 static guint tree_view_signals [LAST_SIGNAL] = { 0 };
 476
 477 \f
 478
 479 /* GType Methods
 480  */
 481
 482 G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
 483                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 484                                                 gtk_tree_view_buildable_init))
 485
 486 static void
 487 gtk_tree_view_class_init (GtkTreeViewClass *class)
 488 {
 489   GObjectClass *o_class;
 490   GtkObjectClass *object_class;
 491   GtkWidgetClass *widget_class;
 492   GtkContainerClass *container_class;
 493   GtkBindingSet *binding_set;
 494
 495   binding_set = gtk_binding_set_by_class (class);
 496
 497   o_class = (GObjectClass *) class;
 498   object_class = (GtkObjectClass *) class;
 499   widget_class = (GtkWidgetClass *) class;
 500   container_class = (GtkContainerClass *) class;
 501
 502   /* GObject signals */
 503   o_class->set_property = gtk_tree_view_set_property;
 504   o_class->get_property = gtk_tree_view_get_property;
 505   o_class->finalize = gtk_tree_view_finalize;
 506
 507   /* GtkObject signals */
 508   object_class->destroy = gtk_tree_view_destroy;
 509
 510   /* GtkWidget signals */
 511   widget_class->map = gtk_tree_view_map;
 512   widget_class->realize = gtk_tree_view_realize;
 513   widget_class->unrealize = gtk_tree_view_unrealize;
 514   widget_class->size_request = gtk_tree_view_size_request;
 515   widget_class->size_allocate = gtk_tree_view_size_allocate;
 516   widget_class->button_press_event = gtk_tree_view_button_press;
 517   widget_class->button_release_event = gtk_tree_view_button_release;
 518   widget_class->grab_broken_event = gtk_tree_view_grab_broken;
 519   /*widget_class->configure_event = gtk_tree_view_configure;*/
 520   widget_class->motion_notify_event = gtk_tree_view_motion;
 521   widget_class->expose_event = gtk_tree_view_expose;
 522   widget_class->key_press_event = gtk_tree_view_key_press;
 523   widget_class->key_release_event = gtk_tree_view_key_release;
 524   widget_class->enter_notify_event = gtk_tree_view_enter_notify;
 525   widget_class->leave_notify_event = gtk_tree_view_leave_notify;
 526   widget_class->focus_out_event = gtk_tree_view_focus_out;
 527   widget_class->drag_begin = gtk_tree_view_drag_begin;
 528   widget_class->drag_end = gtk_tree_view_drag_end;
 529   widget_class->drag_data_get = gtk_tree_view_drag_data_get;
 530   widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
 531   widget_class->drag_leave = gtk_tree_view_drag_leave;
 532   widget_class->drag_motion = gtk_tree_view_drag_motion;
 533   widget_class->drag_drop = gtk_tree_view_drag_drop;
 534   widget_class->drag_data_received = gtk_tree_view_drag_data_received;
 535   widget_class->focus = gtk_tree_view_focus;
 536   widget_class->grab_focus = gtk_tree_view_grab_focus;
 537   widget_class->style_set = gtk_tree_view_style_set;
 538   widget_class->grab_notify = gtk_tree_view_grab_notify;
 539   widget_class->state_changed = gtk_tree_view_state_changed;
 540
 541   /* GtkContainer signals */
 542   container_class->remove = gtk_tree_view_remove;
 543   container_class->forall = gtk_tree_view_forall;
 544   container_class->set_focus_child = gtk_tree_view_set_focus_child;
 545
 546   class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
 547   class->move_cursor = gtk_tree_view_real_move_cursor;
 548   class->select_all = gtk_tree_view_real_select_all;
 549   class->unselect_all = gtk_tree_view_real_unselect_all;
 550   class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
 551   class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
 552   class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
 553   class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
 554   class->start_interactive_search = gtk_tree_view_start_interactive_search;
 555
 556   /* Properties */
 557
 558   g_object_class_install_property (o_class,
 559                                    PROP_MODEL,
 560                                    g_param_spec_object ("model",
 561                                                         P_("TreeView Model"),
 562                                                         P_("The model for the tree view"),
 563                                                         GTK_TYPE_TREE_MODEL,
 564                                                         GTK_PARAM_READWRITE));
 565
 566   g_object_class_install_property (o_class,
 567                                    PROP_HADJUSTMENT,
 568                                    g_param_spec_object ("hadjustment",
 569                                                         P_("Horizontal Adjustment"),
 570                                                         P_("Horizontal Adjustment for the widget"),
 571                                                         GTK_TYPE_ADJUSTMENT,
 572                                                         GTK_PARAM_READWRITE));
 573
 574   g_object_class_install_property (o_class,
 575                                    PROP_VADJUSTMENT,
 576                                    g_param_spec_object ("vadjustment",
 577                                                         P_("Vertical Adjustment"),
 578                                                         P_("Vertical Adjustment for the widget"),
 579                                                         GTK_TYPE_ADJUSTMENT,
 580                                                         GTK_PARAM_READWRITE));
 581
 582   g_object_class_install_property (o_class,
 583                                    PROP_HEADERS_VISIBLE,
 584                                    g_param_spec_boolean ("headers-visible",
 585                                                          P_("Headers Visible"),
 586                                                          P_("Show the column header buttons"),
 587                                                          TRUE,
 588                                                          GTK_PARAM_READWRITE));
 589
 590   g_object_class_install_property (o_class,
 591                                    PROP_HEADERS_CLICKABLE,
 592                                    g_param_spec_boolean ("headers-clickable",
 593                                                          P_("Headers Clickable"),
 594                                                          P_("Column headers respond to click events"),
 595                                                          TRUE,
 596                                                          GTK_PARAM_READWRITE));
 597
 598   g_object_class_install_property (o_class,
 599                                    PROP_EXPANDER_COLUMN,
 600                                    g_param_spec_object ("expander-column",
 601                                                         P_("Expander Column"),
 602                                                         P_("Set the column for the expander column"),
 603                                                         GTK_TYPE_TREE_VIEW_COLUMN,
 604                                                         GTK_PARAM_READWRITE));
 605
 606   g_object_class_install_property (o_class,
 607                                    PROP_REORDERABLE,
 608                                    g_param_spec_boolean ("reorderable",
 609                                                          P_("Reorderable"),
 610                                                          P_("View is reorderable"),
 611                                                          FALSE,
 612                                                          GTK_PARAM_READWRITE));
 613
 614   g_object_class_install_property (o_class,
 615                                    PROP_RULES_HINT,
 616                                    g_param_spec_boolean ("rules-hint",
 617                                                          P_("Rules Hint"),
 618                                                          P_("Set a hint to the theme engine to draw rows in alternating colors"),
 619                                                          FALSE,
 620                                                          GTK_PARAM_READWRITE));
 621
 622     g_object_class_install_property (o_class,
 623                                      PROP_ENABLE_SEARCH,
 624                                      g_param_spec_boolean ("enable-search",
 625                                                            P_("Enable Search"),
 626                                                            P_("View allows user to search through columns interactively"),
 627                                                            TRUE,
 628                                                            GTK_PARAM_READWRITE));
 629
 630     g_object_class_install_property (o_class,
 631                                      PROP_SEARCH_COLUMN,
 632                                      g_param_spec_int ("search-column",
 633                                                        P_("Search Column"),
 634                                                        P_("Model column to search through during interactive search"),
 635                                                        -1,
 636                                                        G_MAXINT,
 637                                                        -1,
 638                                                        GTK_PARAM_READWRITE));
 639
 640     /**
 641      * GtkTreeView:fixed-height-mode:
 642      *
 643      * Setting the ::fixed-height-mode property to %TRUE speeds up
 644      * #GtkTreeView by assuming that all rows have the same height.
 645      * Only enable this option if all rows are the same height.
 646      * Please see gtk_tree_view_set_fixed_height_mode() for more
 647      * information on this option.
 648      *
 649      * Since: 2.4
 650      **/
 651     g_object_class_install_property (o_class,
 652                                      PROP_FIXED_HEIGHT_MODE,
 653                                      g_param_spec_boolean ("fixed-height-mode",
 654                                                            P_("Fixed Height Mode"),
 655                                                            P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
 656                                                            FALSE,
 657                                                            GTK_PARAM_READWRITE));
 658
 659     /**
 660      * GtkTreeView:hover-selection:
 661      *
 662      * Enables of disables the hover selection mode of @tree_view.
 663      * Hover selection makes the selected row follow the pointer.
 664      * Currently, this works only for the selection modes
 665      * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
 666      *
 667      * This mode is primarily intended for treeviews in popups, e.g.
 668      * in #GtkComboBox or #GtkEntryCompletion.
 669      *
 670      * Since: 2.6
 671      */
 672     g_object_class_install_property (o_class,
 673                                      PROP_HOVER_SELECTION,
 674                                      g_param_spec_boolean ("hover-selection",
 675                                                            P_("Hover Selection"),
 676                                                            P_("Whether the selection should follow the pointer"),
 677                                                            FALSE,
 678                                                            GTK_PARAM_READWRITE));
 679
 680     /**
 681      * GtkTreeView:hover-expand:
 682      *
 683      * Enables of disables the hover expansion mode of @tree_view.
 684      * Hover expansion makes rows expand or collapse if the pointer moves
 685      * over them.
 686      *
 687      * This mode is primarily intended for treeviews in popups, e.g.
 688      * in #GtkComboBox or #GtkEntryCompletion.
 689      *
 690      * Since: 2.6
 691      */
 692     g_object_class_install_property (o_class,
 693                                      PROP_HOVER_EXPAND,
 694                                      g_param_spec_boolean ("hover-expand",
 695                                                            P_("Hover Expand"),
 696                                                            P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
 697                                                            FALSE,
 698                                                            GTK_PARAM_READWRITE));
 699
 700     /**
 701      * GtkTreeView:show-expanders:
 702      *
 703      * %TRUE if the view has expanders.
 704      *
 705      * Since: 2.12
 706      */
 707     g_object_class_install_property (o_class,
 708                                      PROP_SHOW_EXPANDERS,
 709                                      g_param_spec_boolean ("show-expanders",
 710                                                            P_("Show Expanders"),
 711                                                            P_("View has expanders"),
 712                                                            TRUE,
 713                                                            GTK_PARAM_READWRITE));
 714
 715     /**
 716      * GtkTreeView:level-indentation:
 717      *
 718      * Extra indentation for each level.
 719      *
 720      * Since: 2.12
 721      */
 722     g_object_class_install_property (o_class,
 723                                      PROP_LEVEL_INDENTATION,
 724                                      g_param_spec_int ("level-indentation",
 725                                                        P_("Level Indentation"),
 726                                                        P_("Extra indentation for each level"),
 727                                                        0,
 728                                                        G_MAXINT,
 729                                                        0,
 730                                                        GTK_PARAM_READWRITE));
 731
 732     g_object_class_install_property (o_class,
 733                                      PROP_RUBBER_BANDING,
 734                                      g_param_spec_boolean ("rubber-banding",
 735                                                            P_("Rubber Banding"),
 736                                                            P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
 737                                                            FALSE,
 738                                                            GTK_PARAM_READWRITE));
 739
 740     g_object_class_install_property (o_class,
 741                                      PROP_ENABLE_GRID_LINES,
 742                                      g_param_spec_enum ("enable-grid-lines",
 743                                                         P_("Enable Grid Lines"),
 744                                                         P_("Whether grid lines should be drawn in the tree view"),
 745                                                         GTK_TYPE_TREE_VIEW_GRID_LINES,
 746                                                         GTK_TREE_VIEW_GRID_LINES_NONE,
 747                                                         GTK_PARAM_READWRITE));
 748
 749     g_object_class_install_property (o_class,
 750                                      PROP_ENABLE_TREE_LINES,
 751                                      g_param_spec_boolean ("enable-tree-lines",
 752                                                            P_("Enable Tree Lines"),
 753                                                            P_("Whether tree lines should be drawn in the tree view"),
 754                                                            FALSE,
 755                                                            GTK_PARAM_READWRITE));
 756
 757     g_object_class_install_property (o_class,
 758                                      PROP_TOOLTIP_COLUMN,
 759                                      g_param_spec_int ("tooltip-column",
 760                                                        P_("Tooltip Column"),
 761                                                        P_("The column in the model containing the tooltip texts for the rows"),
 762                                                        -1,
 763                                                        G_MAXINT,
 764                                                        -1,
 765                                                        GTK_PARAM_READWRITE));
 766
 767   /* Style properties */
 768 #define _TREE_VIEW_EXPANDER_SIZE 12
 769 #define _TREE_VIEW_VERTICAL_SEPARATOR 2
 770 #define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
 771
 772   gtk_widget_class_install_style_property (widget_class,
 773                                            g_param_spec_int ("expander-size",
 774                                                              P_("Expander Size"),
 775                                                              P_("Size of the expander arrow"),
 776                                                              0,
 777                                                              G_MAXINT,
 778                                                              _TREE_VIEW_EXPANDER_SIZE,
 779                                                              GTK_PARAM_READABLE));
 780
 781   gtk_widget_class_install_style_property (widget_class,
 782                                            g_param_spec_int ("vertical-separator",
 783                                                              P_("Vertical Separator Width"),
 784                                                              P_("Vertical space between cells.  Must be an even number"),
 785                                                              0,
 786                                                              G_MAXINT,
 787                                                              _TREE_VIEW_VERTICAL_SEPARATOR,
 788                                                              GTK_PARAM_READABLE));
 789
 790   gtk_widget_class_install_style_property (widget_class,
 791                                            g_param_spec_int ("horizontal-separator",
 792                                                              P_("Horizontal Separator Width"),
 793                                                              P_("Horizontal space between cells.  Must be an even number"),
 794                                                              0,
 795                                                              G_MAXINT,
 796                                                              _TREE_VIEW_HORIZONTAL_SEPARATOR,
 797                                                              GTK_PARAM_READABLE));
 798
 799   gtk_widget_class_install_style_property (widget_class,
 800                                            g_param_spec_boolean ("allow-rules",
 801                                                                  P_("Allow Rules"),
 802                                                                  P_("Allow drawing of alternating color rows"),
 803                                                                  TRUE,
 804                                                                  GTK_PARAM_READABLE));
 805
 806   gtk_widget_class_install_style_property (widget_class,
 807                                            g_param_spec_boolean ("indent-expanders",
 808                                                                  P_("Indent Expanders"),
 809                                                                  P_("Make the expanders indented"),
 810                                                                  TRUE,
 811                                                                  GTK_PARAM_READABLE));
 812
 813   gtk_widget_class_install_style_property (widget_class,
 814                                            g_param_spec_boxed ("even-row-color",
 815                                                                P_("Even Row Color"),
 816                                                                P_("Color to use for even rows"),
 817                                                                GDK_TYPE_COLOR,
 818                                                                GTK_PARAM_READABLE));
 819
 820   gtk_widget_class_install_style_property (widget_class,
 821                                            g_param_spec_boxed ("odd-row-color",
 822                                                                P_("Odd Row Color"),
 823                                                                P_("Color to use for odd rows"),
 824                                                                GDK_TYPE_COLOR,
 825                                                                GTK_PARAM_READABLE));
 826
 827   gtk_widget_class_install_style_property (widget_class,
 828                                            g_param_spec_boolean ("row-ending-details",
 829                                                                  P_("Row Ending details"),
 830                                                                  P_("Enable extended row background theming"),
 831                                                                  FALSE,
 832                                                                  GTK_PARAM_READABLE));
 833
 834   gtk_widget_class_install_style_property (widget_class,
 835                                            g_param_spec_int ("grid-line-width",
 836                                                              P_("Grid line width"),
 837                                                              P_("Width, in pixels, of the tree view grid lines"),
 838                                                              0, G_MAXINT, 1,
 839                                                              GTK_PARAM_READABLE));
 840
 841   gtk_widget_class_install_style_property (widget_class,
 842                                            g_param_spec_int ("tree-line-width",
 843                                                              P_("Tree line width"),
 844                                                              P_("Width, in pixels, of the tree view lines"),
 845                                                              0, G_MAXINT, 1,
 846                                                              GTK_PARAM_READABLE));
 847
 848   gtk_widget_class_install_style_property (widget_class,
 849                                            g_param_spec_string ("grid-line-pattern",
 850                                                                 P_("Grid line pattern"),
 851                                                                 P_("Dash pattern used to draw the tree view grid lines"),
 852                                                                 "\1\1",
 853                                                                 GTK_PARAM_READABLE));
 854
 855   gtk_widget_class_install_style_property (widget_class,
 856                                            g_param_spec_string ("tree-line-pattern",
 857                                                                 P_("Tree line pattern"),
 858                                                                 P_("Dash pattern used to draw the tree view lines"),
 859                                                                 "\1\1",
 860                                                                 GTK_PARAM_READABLE));
 861
 862   /* Signals */
 863   /**
 864    * GtkTreeView::set-scroll-adjustments
 865    * @horizontal: the horizontal #GtkAdjustment
 866    * @vertical: the vertical #GtkAdjustment
 867    *
 868    * Set the scroll adjustments for the tree view. Usually scrolled containers
 869    * like #GtkScrolledWindow will emit this signal to connect two instances
 870    * of #GtkScrollbar to the scroll directions of the #GtkTreeView.
 871    */
 872   widget_class->set_scroll_adjustments_signal =
 873     g_signal_new (I_("set-scroll-adjustments"),
 874                   G_TYPE_FROM_CLASS (o_class),
 875                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 876                   G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
 877                   NULL, NULL,
 878                   _gtk_marshal_VOID__OBJECT_OBJECT,
 879                   G_TYPE_NONE, 2,
 880                   GTK_TYPE_ADJUSTMENT,
 881                   GTK_TYPE_ADJUSTMENT);
 882
 883   /**
 884    * GtkTreeView::row-activated:
 885    * @tree_view: the object on which the signal is emitted
 886    * @path: the #GtkTreePath for the activated row
 887    * @column: the #GtkTreeViewColumn in which the activation occurred
 888    *
 889    * The "row-activated" signal is emitted when the method
 890    * gtk_tree_view_row_activated() is called or the user double clicks
 891    * a treeview row. It is also emitted when a non-editable row is
 892    * selected and one of the keys: Space, Shift+Space, Return or
 893    * Enter is pressed.
 894    *
 895    * For selection handling refer to the <link linkend="TreeWidget">tree
 896    * widget conceptual overview</link> as well as #GtkTreeSelection.
 897    */
 898   tree_view_signals[ROW_ACTIVATED] =
 899     g_signal_new (I_("row-activated"),
 900                   G_TYPE_FROM_CLASS (o_class),
 901                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 902                   G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
 903                   NULL, NULL,
 904                   _gtk_marshal_VOID__BOXED_OBJECT,
 905                   G_TYPE_NONE, 2,
 906                   GTK_TYPE_TREE_PATH,
 907                   GTK_TYPE_TREE_VIEW_COLUMN);
 908
 909   /**
 910    * GtkTreeView::test-expand-row:
 911    * @tree_view: the object on which the signal is emitted
 912    * @iter: the tree iter of the row to expand
 913    * @path: a tree path that points to the row
 914    *
 915    * The given row is about to be expanded (show its children nodes). Use this
 916    * signal if you need to control the expandability of individual rows.
 917    *
 918    * Returns: %FALSE to allow expansion, %TRUE to reject
 919    */
 920   tree_view_signals[TEST_EXPAND_ROW] =
 921     g_signal_new (I_("test-expand-row"),
 922                   G_TYPE_FROM_CLASS (o_class),
 923                   G_SIGNAL_RUN_LAST,
 924                   G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
 925                   _gtk_boolean_handled_accumulator, NULL,
 926                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 927                   G_TYPE_BOOLEAN, 2,
 928                   GTK_TYPE_TREE_ITER,
 929                   GTK_TYPE_TREE_PATH);
 930
 931   /**
 932    * GtkTreeView::test-collapse-row:
 933    * @tree_view: the object on which the signal is emitted
 934    * @iter: the tree iter of the row to collapse
 935    * @path: a tree path that points to the row
 936    *
 937    * The given row is about to be collapsed (hide its children nodes). Use this
 938    * signal if you need to control the collapsibility of individual rows.
 939    *
 940    * Returns: %FALSE to allow collapsing, %TRUE to reject
 941    */
 942   tree_view_signals[TEST_COLLAPSE_ROW] =
 943     g_signal_new (I_("test-collapse-row"),
 944                   G_TYPE_FROM_CLASS (o_class),
 945                   G_SIGNAL_RUN_LAST,
 946                   G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
 947                   _gtk_boolean_handled_accumulator, NULL,
 948                   _gtk_marshal_BOOLEAN__BOXED_BOXED,
 949                   G_TYPE_BOOLEAN, 2,
 950                   GTK_TYPE_TREE_ITER,
 951                   GTK_TYPE_TREE_PATH);
 952
 953   /**
 954    * GtkTreeView::row-expanded:
 955    * @tree_view: the object on which the signal is emitted
 956    * @iter: the tree iter of the expanded row
 957    * @path: a tree path that points to the row
 958    *
 959    * The given row has been expanded (child nodes are shown).
 960    */
 961   tree_view_signals[ROW_EXPANDED] =
 962     g_signal_new (I_("row-expanded"),
 963                   G_TYPE_FROM_CLASS (o_class),
 964                   G_SIGNAL_RUN_LAST,
 965                   G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
 966                   NULL, NULL,
 967                   _gtk_marshal_VOID__BOXED_BOXED,
 968                   G_TYPE_NONE, 2,
 969                   GTK_TYPE_TREE_ITER,
 970                   GTK_TYPE_TREE_PATH);
 971
 972   /**
 973    * GtkTreeView::row-collapsed:
 974    * @tree_view: the object on which the signal is emitted
 975    * @iter: the tree iter of the collapsed row
 976    * @path: a tree path that points to the row
 977    *
 978    * The given row has been collapsed (child nodes are hidden).
 979    */
 980   tree_view_signals[ROW_COLLAPSED] =
 981     g_signal_new (I_("row-collapsed"),
 982                   G_TYPE_FROM_CLASS (o_class),
 983                   G_SIGNAL_RUN_LAST,
 984                   G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
 985                   NULL, NULL,
 986                   _gtk_marshal_VOID__BOXED_BOXED,
 987                   G_TYPE_NONE, 2,
 988                   GTK_TYPE_TREE_ITER,
 989                   GTK_TYPE_TREE_PATH);
 990
 991   /**
 992    * GtkTreeView::columns-changed:
 993    * @tree_view: the object on which the signal is emitted
 994    *
 995    * The number of columns of the treeview has changed.
 996    */
 997   tree_view_signals[COLUMNS_CHANGED] =
 998     g_signal_new (I_("columns-changed"),
 999                   G_TYPE_FROM_CLASS (o_class),
1000                   G_SIGNAL_RUN_LAST,
1001                   G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
1002                   NULL, NULL,
1003                   _gtk_marshal_VOID__VOID,
1004                   G_TYPE_NONE, 0);
1005
1006   /**
1007    * GtkTreeView::cursor-changed:
1008    * @tree_view: the object on which the signal is emitted
1009    *
1010    * The position of the cursor (focused cell) has changed.
1011    */
1012   tree_view_signals[CURSOR_CHANGED] =
1013     g_signal_new (I_("cursor-changed"),
1014                   G_TYPE_FROM_CLASS (o_class),
1015                   G_SIGNAL_RUN_LAST,
1016                   G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
1017                   NULL, NULL,
1018                   _gtk_marshal_VOID__VOID,
1019                   G_TYPE_NONE, 0);
1020
1021   tree_view_signals[MOVE_CURSOR] =
1022     g_signal_new (I_("move-cursor"),
1023                   G_TYPE_FROM_CLASS (object_class),
1024                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1025                   G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
1026                   NULL, NULL,
1027                   _gtk_marshal_BOOLEAN__ENUM_INT,
1028                   G_TYPE_BOOLEAN, 2,
1029                   GTK_TYPE_MOVEMENT_STEP,
1030                   G_TYPE_INT);
1031
1032   tree_view_signals[SELECT_ALL] =
1033     g_signal_new (I_("select-all"),
1034                   G_TYPE_FROM_CLASS (object_class),
1035                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1036                   G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
1037                   NULL, NULL,
1038                   _gtk_marshal_BOOLEAN__VOID,
1039                   G_TYPE_BOOLEAN, 0);
1040
1041   tree_view_signals[UNSELECT_ALL] =
1042     g_signal_new (I_("unselect-all"),
1043                   G_TYPE_FROM_CLASS (object_class),
1044                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1045                   G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
1046                   NULL, NULL,
1047                   _gtk_marshal_BOOLEAN__VOID,
1048                   G_TYPE_BOOLEAN, 0);
1049
1050   tree_view_signals[SELECT_CURSOR_ROW] =
1051     g_signal_new (I_("select-cursor-row"),
1052                   G_TYPE_FROM_CLASS (object_class),
1053                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1054                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
1055                   NULL, NULL,
1056                   _gtk_marshal_BOOLEAN__BOOLEAN,
1057                   G_TYPE_BOOLEAN, 1,
1058                   G_TYPE_BOOLEAN);
1059
1060   tree_view_signals[TOGGLE_CURSOR_ROW] =
1061     g_signal_new (I_("toggle-cursor-row"),
1062                   G_TYPE_FROM_CLASS (object_class),
1063                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1064                   G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
1065                   NULL, NULL,
1066                   _gtk_marshal_BOOLEAN__VOID,
1067                   G_TYPE_BOOLEAN, 0);
1068
1069   tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
1070     g_signal_new (I_("expand-collapse-cursor-row"),
1071                   G_TYPE_FROM_CLASS (object_class),
1072                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1073                   G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
1074                   NULL, NULL,
1075                   _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
1076                   G_TYPE_BOOLEAN, 3,
1077                   G_TYPE_BOOLEAN,
1078                   G_TYPE_BOOLEAN,
1079                   G_TYPE_BOOLEAN);
1080
1081   tree_view_signals[SELECT_CURSOR_PARENT] =
1082     g_signal_new (I_("select-cursor-parent"),
1083                   G_TYPE_FROM_CLASS (object_class),
1084                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1085                   G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
1086                   NULL, NULL,
1087                   _gtk_marshal_BOOLEAN__VOID,
1088                   G_TYPE_BOOLEAN, 0);
1089
1090   tree_view_signals[START_INTERACTIVE_SEARCH] =
1091     g_signal_new (I_("start-interactive-search"),
1092                   G_TYPE_FROM_CLASS (object_class),
1093                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1094                   G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
1095                   NULL, NULL,
1096                   _gtk_marshal_BOOLEAN__VOID,
1097                   G_TYPE_BOOLEAN, 0);
1098
1099   /* Key bindings */
1100   gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0, TRUE,
1101                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1102   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0, TRUE,
1103                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1104
1105   gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0, TRUE,
1106                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1107   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0, TRUE,
1108                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1109
1110   gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, FALSE,
1111                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
1112
1113   gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, FALSE,
1114                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
1115
1116   gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0, TRUE,
1117                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1118   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0, TRUE,
1119                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
1120
1121   gtk_tree_view_add_move_binding (binding_set, GDK_End, 0, TRUE,
1122                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1123   gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0, TRUE,
1124                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
1125
1126   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0, TRUE,
1127                                   GTK_MOVEMENT_PAGES, -1);
1128   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, TRUE,
1129                                   GTK_MOVEMENT_PAGES, -1);
1130
1131   gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0, TRUE,
1132                                   GTK_MOVEMENT_PAGES, 1);
1133   gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, TRUE,
1134                                   GTK_MOVEMENT_PAGES, 1);
1135
1136
1137   gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move-cursor", 2,
1138                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1139                                 G_TYPE_INT, 1);
1140
1141   gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move-cursor", 2,
1142                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1143                                 G_TYPE_INT, -1);
1144
1145   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move-cursor", 2,
1146                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1147                                 G_TYPE_INT, 1);
1148
1149   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move-cursor", 2,
1150                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1151                                 G_TYPE_INT, -1);
1152
1153   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
1154                                 "move-cursor", 2,
1155                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1156                                 G_TYPE_INT, 1);
1157
1158   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
1159                                 "move-cursor", 2,
1160                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1161                                 G_TYPE_INT, -1);
1162
1163   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
1164                                 "move-cursor", 2,
1165                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1166                                 G_TYPE_INT, 1);
1167
1168   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
1169                                 "move-cursor", 2,
1170                                 G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
1171                                 G_TYPE_INT, -1);
1172
1173   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1174   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
1175
1176   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select-all", 0);
1177   gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select-all", 0);
1178
1179   gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
1180   gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
1181
1182   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1183                                 G_TYPE_BOOLEAN, TRUE);
1184   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
1185                                 G_TYPE_BOOLEAN, TRUE);
1186
1187   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select-cursor-row", 1,
1188                                 G_TYPE_BOOLEAN, TRUE);
1189   gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "select-cursor-row", 1,
1190                                 G_TYPE_BOOLEAN, TRUE);
1191   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select-cursor-row", 1,
1192                                 G_TYPE_BOOLEAN, TRUE);
1193   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select-cursor-row", 1,
1194                                 G_TYPE_BOOLEAN, TRUE);
1195   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select-cursor-row", 1,
1196                                 G_TYPE_BOOLEAN, TRUE);
1197
1198   /* expand and collapse rows */
1199   gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand-collapse-cursor-row", 3,
1200                                 G_TYPE_BOOLEAN, TRUE,
1201                                 G_TYPE_BOOLEAN, TRUE,
1202                                 G_TYPE_BOOLEAN, FALSE);
1203
1204   gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
1205                                 "expand-collapse-cursor-row", 3,
1206                                 G_TYPE_BOOLEAN, TRUE,
1207                                 G_TYPE_BOOLEAN, TRUE,
1208                                 G_TYPE_BOOLEAN, TRUE);
1209   gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
1210                                 "expand-collapse-cursor-row", 3,
1211                                 G_TYPE_BOOLEAN, TRUE,
1212                                 G_TYPE_BOOLEAN, TRUE,
1213                                 G_TYPE_BOOLEAN, TRUE);
1214
1215   gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
1216                                 "expand-collapse-cursor-row", 3,
1217                                 G_TYPE_BOOLEAN, TRUE,
1218                                 G_TYPE_BOOLEAN, FALSE,
1219                                 G_TYPE_BOOLEAN, FALSE);
1220   gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
1221                                 "expand-collapse-cursor-row", 3,
1222                                 G_TYPE_BOOLEAN, TRUE,
1223                                 G_TYPE_BOOLEAN, FALSE,
1224                                 G_TYPE_BOOLEAN, FALSE);
1225
1226   /* Not doable on US keyboards */
1227   gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1228                                 G_TYPE_BOOLEAN, TRUE,
1229                                 G_TYPE_BOOLEAN, TRUE,
1230                                 G_TYPE_BOOLEAN, TRUE);
1231   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand-collapse-cursor-row", 3,
1232                                 G_TYPE_BOOLEAN, TRUE,
1233                                 G_TYPE_BOOLEAN, TRUE,
1234                                 G_TYPE_BOOLEAN, FALSE);
1235   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1236                                 G_TYPE_BOOLEAN, TRUE,
1237                                 G_TYPE_BOOLEAN, TRUE,
1238                                 G_TYPE_BOOLEAN, TRUE);
1239   gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1240                                 G_TYPE_BOOLEAN, TRUE,
1241                                 G_TYPE_BOOLEAN, TRUE,
1242                                 G_TYPE_BOOLEAN, TRUE);
1243   gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_SHIFT_MASK,
1244                                 "expand-collapse-cursor-row", 3,
1245                                 G_TYPE_BOOLEAN, FALSE,
1246                                 G_TYPE_BOOLEAN, TRUE,
1247                                 G_TYPE_BOOLEAN, TRUE);
1248   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_SHIFT_MASK,
1249                                 "expand-collapse-cursor-row", 3,
1250                                 G_TYPE_BOOLEAN, FALSE,
1251                                 G_TYPE_BOOLEAN, TRUE,
1252                                 G_TYPE_BOOLEAN, TRUE);
1253   gtk_binding_entry_add_signal (binding_set, GDK_Right,
1254                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1255                                 "expand-collapse-cursor-row", 3,
1256                                 G_TYPE_BOOLEAN, FALSE,
1257                                 G_TYPE_BOOLEAN, TRUE,
1258                                 G_TYPE_BOOLEAN, TRUE);
1259   gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
1260                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1261                                 "expand-collapse-cursor-row", 3,
1262                                 G_TYPE_BOOLEAN, FALSE,
1263                                 G_TYPE_BOOLEAN, TRUE,
1264                                 G_TYPE_BOOLEAN, TRUE);
1265
1266   gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand-collapse-cursor-row", 3,
1267                                 G_TYPE_BOOLEAN, TRUE,
1268                                 G_TYPE_BOOLEAN, FALSE,
1269                                 G_TYPE_BOOLEAN, FALSE);
1270   gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1271                                 G_TYPE_BOOLEAN, TRUE,
1272                                 G_TYPE_BOOLEAN, FALSE,
1273                                 G_TYPE_BOOLEAN, TRUE);
1274   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
1275                                 G_TYPE_BOOLEAN, TRUE,
1276                                 G_TYPE_BOOLEAN, FALSE,
1277                                 G_TYPE_BOOLEAN, FALSE);
1278   gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
1279                                 G_TYPE_BOOLEAN, TRUE,
1280                                 G_TYPE_BOOLEAN, FALSE,
1281                                 G_TYPE_BOOLEAN, TRUE);
1282   gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
1283                                 "expand-collapse-cursor-row", 3,
1284                                 G_TYPE_BOOLEAN, FALSE,
1285                                 G_TYPE_BOOLEAN, FALSE,
1286                                 G_TYPE_BOOLEAN, TRUE);
1287   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
1288                                 "expand-collapse-cursor-row", 3,
1289                                 G_TYPE_BOOLEAN, FALSE,
1290                                 G_TYPE_BOOLEAN, FALSE,
1291                                 G_TYPE_BOOLEAN, TRUE);
1292   gtk_binding_entry_add_signal (binding_set, GDK_Left,
1293                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1294                                 "expand-collapse-cursor-row", 3,
1295                                 G_TYPE_BOOLEAN, FALSE,
1296                                 G_TYPE_BOOLEAN, FALSE,
1297                                 G_TYPE_BOOLEAN, TRUE);
1298   gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
1299                                 GDK_CONTROL_MASK | GDK_SHIFT_MASK,
1300                                 "expand-collapse-cursor-row", 3,
1301                                 G_TYPE_BOOLEAN, FALSE,
1302                                 G_TYPE_BOOLEAN, FALSE,
1303                                 G_TYPE_BOOLEAN, TRUE);
1304
1305   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select-cursor-parent", 0);
1306   gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
1307
1308   gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
1309
1310   gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
1311
1312   g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
1313 }
1314
1315 static void
1316 gtk_tree_view_buildable_init (GtkBuildableIface *iface)
1317 {
1318   iface->add_child = gtk_tree_view_buildable_add_child;
1319 }
1320
1321 static void
1322 gtk_tree_view_init (GtkTreeView *tree_view)
1323 {
1324   tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
1325
1326   GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
1327
1328   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
1329
1330   tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
1331                             | GTK_TREE_VIEW_DRAW_KEYFOCUS
1332                             | GTK_TREE_VIEW_HEADERS_VISIBLE;
1333
1334   /* We need some padding */
1335   tree_view->priv->dy = 0;
1336   tree_view->priv->cursor_offset = 0;
1337   tree_view->priv->n_columns = 0;
1338   tree_view->priv->header_height = 1;
1339   tree_view->priv->x_drag = 0;
1340   tree_view->priv->drag_pos = -1;
1341   tree_view->priv->header_has_focus = FALSE;
1342   tree_view->priv->pressed_button = -1;
1343   tree_view->priv->press_start_x = -1;
1344   tree_view->priv->press_start_y = -1;
1345   tree_view->priv->reorderable = FALSE;
1346   tree_view->priv->presize_handler_timer = 0;
1347   tree_view->priv->scroll_sync_timer = 0;
1348   tree_view->priv->fixed_height = -1;
1349   tree_view->priv->fixed_height_mode = FALSE;
1350   tree_view->priv->fixed_height_check = 0;
1351   gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
1352   tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
1353   tree_view->priv->enable_search = TRUE;
1354   tree_view->priv->search_column = -1;
1355   tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
1356   tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
1357   tree_view->priv->search_custom_entry_set = FALSE;
1358   tree_view->priv->typeselect_flush_timeout = 0;
1359   tree_view->priv->init_hadjust_value = TRUE;
1360   tree_view->priv->width = 0;
1361
1362   tree_view->priv->hover_selection = FALSE;
1363   tree_view->priv->hover_expand = FALSE;
1364
1365   tree_view->priv->level_indentation = 0;
1366
1367   tree_view->priv->rubber_banding_enable = FALSE;
1368
1369   tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
1370   tree_view->priv->tree_lines_enabled = FALSE;
1371
1372   tree_view->priv->tooltip_column = -1;
1373
1374   tree_view->priv->post_validation_flag = FALSE;
1375 }
1376
1377 \f
1378
1379 /* GObject Methods
1380  */
1381
1382 static void
1383 gtk_tree_view_set_property (GObject         *object,
1384                             guint            prop_id,
1385                             const GValue    *value,
1386                             GParamSpec      *pspec)
1387 {
1388   GtkTreeView *tree_view;
1389
1390   tree_view = GTK_TREE_VIEW (object);
1391
1392   switch (prop_id)
1393     {
1394     case PROP_MODEL:
1395       gtk_tree_view_set_model (tree_view, g_value_get_object (value));
1396       break;
1397     case PROP_HADJUSTMENT:
1398       gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
1399       break;
1400     case PROP_VADJUSTMENT:
1401       gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
1402       break;
1403     case PROP_HEADERS_VISIBLE:
1404       gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
1405       break;
1406     case PROP_HEADERS_CLICKABLE:
1407       gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
1408       break;
1409     case PROP_EXPANDER_COLUMN:
1410       gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
1411       break;
1412     case PROP_REORDERABLE:
1413       gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
1414       break;
1415     case PROP_RULES_HINT:
1416       gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
1417       break;
1418     case PROP_ENABLE_SEARCH:
1419       gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
1420       break;
1421     case PROP_SEARCH_COLUMN:
1422       gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
1423       break;
1424     case PROP_FIXED_HEIGHT_MODE:
1425       gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
1426       break;
1427     case PROP_HOVER_SELECTION:
1428       tree_view->priv->hover_selection = g_value_get_boolean (value);
1429       break;
1430     case PROP_HOVER_EXPAND:
1431       tree_view->priv->hover_expand = g_value_get_boolean (value);
1432       break;
1433     case PROP_SHOW_EXPANDERS:
1434       gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
1435       break;
1436     case PROP_LEVEL_INDENTATION:
1437       tree_view->priv->level_indentation = g_value_get_int (value);
1438       break;
1439     case PROP_RUBBER_BANDING:
1440       tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
1441       break;
1442     case PROP_ENABLE_GRID_LINES:
1443       gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
1444       break;
1445     case PROP_ENABLE_TREE_LINES:
1446       gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
1447       break;
1448     case PROP_TOOLTIP_COLUMN:
1449       gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
1450       break;
1451     default:
1452       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1453       break;
1454     }
1455 }
1456
1457 static void
1458 gtk_tree_view_get_property (GObject    *object,
1459                             guint       prop_id,
1460                             GValue     *value,
1461                             GParamSpec *pspec)
1462 {
1463   GtkTreeView *tree_view;
1464
1465   tree_view = GTK_TREE_VIEW (object);
1466
1467   switch (prop_id)
1468     {
1469     case PROP_MODEL:
1470       g_value_set_object (value, tree_view->priv->model);
1471       break;
1472     case PROP_HADJUSTMENT:
1473       g_value_set_object (value, tree_view->priv->hadjustment);
1474       break;
1475     case PROP_VADJUSTMENT:
1476       g_value_set_object (value, tree_view->priv->vadjustment);
1477       break;
1478     case PROP_HEADERS_VISIBLE:
1479       g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
1480       break;
1481     case PROP_HEADERS_CLICKABLE:
1482       g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
1483       break;
1484     case PROP_EXPANDER_COLUMN:
1485       g_value_set_object (value, tree_view->priv->expander_column);
1486       break;
1487     case PROP_REORDERABLE:
1488       g_value_set_boolean (value, tree_view->priv->reorderable);
1489       break;
1490     case PROP_RULES_HINT:
1491       g_value_set_boolean (value, tree_view->priv->has_rules);
1492       break;
1493     case PROP_ENABLE_SEARCH:
1494       g_value_set_boolean (value, tree_view->priv->enable_search);
1495       break;
1496     case PROP_SEARCH_COLUMN:
1497       g_value_set_int (value, tree_view->priv->search_column);
1498       break;
1499     case PROP_FIXED_HEIGHT_MODE:
1500       g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
1501       break;
1502     case PROP_HOVER_SELECTION:
1503       g_value_set_boolean (value, tree_view->priv->hover_selection);
1504       break;
1505     case PROP_HOVER_EXPAND:
1506       g_value_set_boolean (value, tree_view->priv->hover_expand);
1507       break;
1508     case PROP_SHOW_EXPANDERS:
1509       g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
1510       break;
1511     case PROP_LEVEL_INDENTATION:
1512       g_value_set_int (value, tree_view->priv->level_indentation);
1513       break;
1514     case PROP_RUBBER_BANDING:
1515       g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
1516       break;
1517     case PROP_ENABLE_GRID_LINES:
1518       g_value_set_enum (value, tree_view->priv->grid_lines);
1519       break;
1520     case PROP_ENABLE_TREE_LINES:
1521       g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
1522       break;
1523     case PROP_TOOLTIP_COLUMN:
1524       g_value_set_int (value, tree_view->priv->tooltip_column);
1525       break;
1526     default:
1527       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1528       break;
1529     }
1530 }
1531
1532 static void
1533 gtk_tree_view_finalize (GObject *object)
1534 {
1535   G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
1536 }
1537
1538 \f
1539
1540 static void
1541 gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
1542                                    GtkBuilder  *builder,
1543                                    GObject     *child,
1544                                    const gchar *type)
1545 {
1546   gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
1547 }
1548
1549 /* GtkObject Methods
1550  */
1551
1552 static void
1553 gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
1554 {
1555   _gtk_rbtree_free (tree_view->priv->tree);
1556
1557   tree_view->priv->tree = NULL;
1558   tree_view->priv->button_pressed_node = NULL;
1559   tree_view->priv->button_pressed_tree = NULL;
1560   tree_view->priv->prelight_tree = NULL;
1561   tree_view->priv->prelight_node = NULL;
1562   tree_view->priv->expanded_collapsed_node = NULL;
1563   tree_view->priv->expanded_collapsed_tree = NULL;
1564 }
1565
1566 static void
1567 gtk_tree_view_destroy (GtkObject *object)
1568 {
1569   GtkTreeView *tree_view = GTK_TREE_VIEW (object);
1570   GList *list;
1571
1572   gtk_tree_view_stop_editing (tree_view, TRUE);
1573
1574   if (tree_view->priv->columns != NULL)
1575     {
1576       list = tree_view->priv->columns;
1577       while (list)
1578         {
1579           GtkTreeViewColumn *column;
1580           column = GTK_TREE_VIEW_COLUMN (list->data);
1581           list = list->next;
1582           gtk_tree_view_remove_column (tree_view, column);
1583         }
1584       tree_view->priv->columns = NULL;
1585     }
1586
1587   if (tree_view->priv->tree != NULL)
1588     {
1589       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
1590
1591       gtk_tree_view_free_rbtree (tree_view);
1592     }
1593
1594   if (tree_view->priv->selection != NULL)
1595     {
1596       _gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
1597       g_object_unref (tree_view->priv->selection);
1598       tree_view->priv->selection = NULL;
1599     }
1600
1601   if (tree_view->priv->scroll_to_path != NULL)
1602     {
1603       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
1604       tree_view->priv->scroll_to_path = NULL;
1605     }
1606
1607   if (tree_view->priv->drag_dest_row != NULL)
1608     {
1609       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
1610       tree_view->priv->drag_dest_row = NULL;
1611     }
1612
1613   if (tree_view->priv->last_button_press != NULL)
1614     {
1615       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
1616       tree_view->priv->last_button_press = NULL;
1617     }
1618
1619   if (tree_view->priv->last_button_press_2 != NULL)
1620     {
1621       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
1622       tree_view->priv->last_button_press_2 = NULL;
1623     }
1624
1625   if (tree_view->priv->top_row != NULL)
1626     {
1627       gtk_tree_row_reference_free (tree_view->priv->top_row);
1628       tree_view->priv->top_row = NULL;
1629     }
1630
1631   if (tree_view->priv->column_drop_func_data &&
1632       tree_view->priv->column_drop_func_data_destroy)
1633     {
1634       tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
1635       tree_view->priv->column_drop_func_data = NULL;
1636     }
1637
1638   if (tree_view->priv->destroy_count_destroy &&
1639       tree_view->priv->destroy_count_data)
1640     {
1641       tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
1642       tree_view->priv->destroy_count_data = NULL;
1643     }
1644
1645   gtk_tree_row_reference_free (tree_view->priv->cursor);
1646   tree_view->priv->cursor = NULL;
1647
1648   gtk_tree_row_reference_free (tree_view->priv->anchor);
1649   tree_view->priv->anchor = NULL;
1650
1651   /* destroy interactive search dialog */
1652   if (tree_view->priv->search_window)
1653     {
1654       gtk_widget_destroy (tree_view->priv->search_window);
1655       tree_view->priv->search_window = NULL;
1656       tree_view->priv->search_entry = NULL;
1657       if (tree_view->priv->typeselect_flush_timeout)
1658         {
1659           g_source_remove (tree_view->priv->typeselect_flush_timeout);
1660           tree_view->priv->typeselect_flush_timeout = 0;
1661         }
1662     }
1663
1664   if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
1665     {
1666       tree_view->priv->search_destroy (tree_view->priv->search_user_data);
1667       tree_view->priv->search_user_data = NULL;
1668     }
1669
1670   if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
1671     {
1672       tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
1673       tree_view->priv->search_position_user_data = NULL;
1674     }
1675
1676   if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
1677     {
1678       tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
1679       tree_view->priv->row_separator_data = NULL;
1680     }
1681
1682   gtk_tree_view_set_model (tree_view, NULL);
1683
1684   if (tree_view->priv->hadjustment)
1685     {
1686       g_object_unref (tree_view->priv->hadjustment);
1687       tree_view->priv->hadjustment = NULL;
1688     }
1689   if (tree_view->priv->vadjustment)
1690     {
1691       g_object_unref (tree_view->priv->vadjustment);
1692       tree_view->priv->vadjustment = NULL;
1693     }
1694
1695   GTK_OBJECT_CLASS (gtk_tree_view_parent_class)->destroy (object);
1696 }
1697
1698 \f
1699
1700 /* GtkWidget Methods
1701  */
1702
1703 /* GtkWidget::map helper */
1704 static void
1705 gtk_tree_view_map_buttons (GtkTreeView *tree_view)
1706 {
1707   GList *list;
1708
1709   g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
1710
1711   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
1712     {
1713       GtkTreeViewColumn *column;
1714
1715       for (list = tree_view->priv->columns; list; list = list->next)
1716         {
1717           column = list->data;
1718           if (GTK_WIDGET_VISIBLE (column->button) &&
1719               !GTK_WIDGET_MAPPED (column->button))
1720             gtk_widget_map (column->button);
1721         }
1722       for (list = tree_view->priv->columns; list; list = list->next)
1723         {
1724           column = list->data;
1725           if (column->visible == FALSE)
1726             continue;
1727           if (column->resizable)
1728             {
1729               gdk_window_raise (column->window);
1730               gdk_window_show (column->window);
1731             }
1732           else
1733             gdk_window_hide (column->window);
1734         }
1735       gdk_window_show (tree_view->priv->header_window);
1736     }
1737 }
1738
1739 static void
1740 gtk_tree_view_map (GtkWidget *widget)
1741 {
1742   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1743   GList *tmp_list;
1744
1745   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1746
1747   tmp_list = tree_view->priv->children;
1748   while (tmp_list)
1749     {
1750       GtkTreeViewChild *child = tmp_list->data;
1751       tmp_list = tmp_list->next;
1752
1753       if (GTK_WIDGET_VISIBLE (child->widget))
1754         {
1755           if (!GTK_WIDGET_MAPPED (child->widget))
1756             gtk_widget_map (child->widget);
1757         }
1758     }
1759   gdk_window_show (tree_view->priv->bin_window);
1760
1761   gtk_tree_view_map_buttons (tree_view);
1762
1763   gdk_window_show (widget->window);
1764 }
1765
1766 static void
1767 gtk_tree_view_realize (GtkWidget *widget)
1768 {
1769   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1770   GList *tmp_list;
1771   GdkWindowAttr attributes;
1772   gint attributes_mask;
1773
1774   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1775
1776   /* Make the main, clipping window */
1777   attributes.window_type = GDK_WINDOW_CHILD;
1778   attributes.x = widget->allocation.x;
1779   attributes.y = widget->allocation.y;
1780   attributes.width = widget->allocation.width;
1781   attributes.height = widget->allocation.height;
1782   attributes.wclass = GDK_INPUT_OUTPUT;
1783   attributes.visual = gtk_widget_get_visual (widget);
1784   attributes.colormap = gtk_widget_get_colormap (widget);
1785   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1786
1787   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1788
1789   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1790                                    &attributes, attributes_mask);
1791   gdk_window_set_user_data (widget->window, widget);
1792
1793   /* Make the window for the tree */
1794   attributes.x = 0;
1795   attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
1796   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1797   attributes.height = widget->allocation.height;
1798   attributes.event_mask = (GDK_EXPOSURE_MASK |
1799                            GDK_SCROLL_MASK |
1800                            GDK_POINTER_MOTION_MASK |
1801                            GDK_ENTER_NOTIFY_MASK |
1802                            GDK_LEAVE_NOTIFY_MASK |
1803                            GDK_BUTTON_PRESS_MASK |
1804                            GDK_BUTTON_RELEASE_MASK |
1805                            gtk_widget_get_events (widget));
1806
1807   tree_view->priv->bin_window = gdk_window_new (widget->window,
1808                                                 &attributes, attributes_mask);
1809   gdk_window_set_user_data (tree_view->priv->bin_window, widget);
1810
1811   /* Make the column header window */
1812   attributes.x = 0;
1813   attributes.y = 0;
1814   attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
1815   attributes.height = tree_view->priv->header_height;
1816   attributes.event_mask = (GDK_EXPOSURE_MASK |
1817                            GDK_SCROLL_MASK |
1818                            GDK_BUTTON_PRESS_MASK |
1819                            GDK_BUTTON_RELEASE_MASK |
1820                            GDK_KEY_PRESS_MASK |
1821                            GDK_KEY_RELEASE_MASK |
1822                            gtk_widget_get_events (widget));
1823
1824   tree_view->priv->header_window = gdk_window_new (widget->window,
1825                                                    &attributes, attributes_mask);
1826   gdk_window_set_user_data (tree_view->priv->header_window, widget);
1827
1828   /* Add them all up. */
1829   widget->style = gtk_style_attach (widget->style, widget->window);
1830   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1831   gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
1832   gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
1833
1834   tmp_list = tree_view->priv->children;
1835   while (tmp_list)
1836     {
1837       GtkTreeViewChild *child = tmp_list->data;
1838       tmp_list = tmp_list->next;
1839
1840       gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
1841     }
1842
1843   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
1844     _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
1845
1846   /* Need to call those here, since they create GCs */
1847   gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
1848   gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
1849
1850   install_presize_handler (tree_view);
1851 }
1852
1853 static void
1854 gtk_tree_view_unrealize (GtkWidget *widget)
1855 {
1856   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
1857   GtkTreeViewPrivate *priv = tree_view->priv;
1858   GList *list;
1859
1860   if (priv->scroll_timeout != 0)
1861     {
1862       g_source_remove (priv->scroll_timeout);
1863       priv->scroll_timeout = 0;
1864     }
1865
1866   if (priv->auto_expand_timeout != 0)
1867     {
1868       g_source_remove (priv->auto_expand_timeout);
1869       priv->auto_expand_timeout = 0;
1870     }
1871
1872   if (priv->open_dest_timeout != 0)
1873     {
1874       g_source_remove (priv->open_dest_timeout);
1875       priv->open_dest_timeout = 0;
1876     }
1877
1878   remove_expand_collapse_timeout (tree_view);
1879
1880   if (priv->presize_handler_timer != 0)
1881     {
1882       g_source_remove (priv->presize_handler_timer);
1883       priv->presize_handler_timer = 0;
1884     }
1885
1886   if (priv->validate_rows_timer != 0)
1887     {
1888       g_source_remove (priv->validate_rows_timer);
1889       priv->validate_rows_timer = 0;
1890     }
1891
1892   if (priv->scroll_sync_timer != 0)
1893     {
1894       g_source_remove (priv->scroll_sync_timer);
1895       priv->scroll_sync_timer = 0;
1896     }
1897
1898   if (priv->typeselect_flush_timeout)
1899     {
1900       g_source_remove (priv->typeselect_flush_timeout);
1901       priv->typeselect_flush_timeout = 0;
1902     }
1903
1904   for (list = priv->columns; list; list = list->next)
1905     _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
1906
1907   gdk_window_set_user_data (priv->bin_window, NULL);
1908   gdk_window_destroy (priv->bin_window);
1909   priv->bin_window = NULL;
1910
1911   gdk_window_set_user_data (priv->header_window, NULL);
1912   gdk_window_destroy (priv->header_window);
1913   priv->header_window = NULL;
1914
1915   if (priv->drag_window)
1916     {
1917       gdk_window_set_user_data (priv->drag_window, NULL);
1918       gdk_window_destroy (priv->drag_window);
1919       priv->drag_window = NULL;
1920     }
1921
1922   if (priv->drag_highlight_window)
1923     {
1924       gdk_window_set_user_data (priv->drag_highlight_window, NULL);
1925       gdk_window_destroy (priv->drag_highlight_window);
1926       priv->drag_highlight_window = NULL;
1927     }
1928
1929   if (priv->tree_line_gc)
1930     {
1931       g_object_unref (priv->tree_line_gc);
1932       priv->tree_line_gc = NULL;
1933     }
1934
1935   if (priv->grid_line_gc)
1936     {
1937       g_object_unref (priv->grid_line_gc);
1938       priv->grid_line_gc = NULL;
1939     }
1940
1941   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
1942 }
1943
1944 /* GtkWidget::size_request helper */
1945 static void
1946 gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
1947 {
1948   GList *list;
1949
1950   tree_view->priv->header_height = 0;
1951
1952   if (tree_view->priv->model)
1953     {
1954       for (list = tree_view->priv->columns; list; list = list->next)
1955         {
1956           GtkRequisition requisition;
1957           GtkTreeViewColumn *column = list->data;
1958
1959           if (column->button == NULL)
1960             continue;
1961
1962           column = list->data;
1963
1964           gtk_widget_size_request (column->button, &requisition);
1965           column->button_request = requisition.width;
1966           tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
1967         }
1968     }
1969 }
1970
1971
1972 /* Called only by ::size_request */
1973 static void
1974 gtk_tree_view_update_size (GtkTreeView *tree_view)
1975 {
1976   GList *list;
1977   GtkTreeViewColumn *column;
1978   gint i;
1979
1980   if (tree_view->priv->model == NULL)
1981     {
1982       tree_view->priv->width = 0;
1983       tree_view->priv->prev_width = 0;
1984       tree_view->priv->height = 0;
1985       return;
1986     }
1987
1988   tree_view->priv->prev_width = tree_view->priv->width;
1989   tree_view->priv->width = 0;
1990
1991   /* keep this in sync with size_allocate below */
1992   for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
1993     {
1994       gint real_requested_width = 0;
1995       column = list->data;
1996       if (!column->visible)
1997         continue;
1998
1999       if (column->use_resized_width)
2000         {
2001           real_requested_width = column->resized_width;
2002         }
2003       else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2004         {
2005           real_requested_width = column->fixed_width;
2006         }
2007       else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2008         {
2009           real_requested_width = MAX (column->requested_width, column->button_request);
2010         }
2011       else
2012         {
2013           real_requested_width = column->requested_width;
2014         }
2015
2016       if (column->min_width != -1)
2017         real_requested_width = MAX (real_requested_width, column->min_width);
2018       if (column->max_width != -1)
2019         real_requested_width = MIN (real_requested_width, column->max_width);
2020
2021       tree_view->priv->width += real_requested_width;
2022     }
2023
2024   if (tree_view->priv->tree == NULL)
2025     tree_view->priv->height = 0;
2026   else
2027     tree_view->priv->height = tree_view->priv->tree->root->offset;
2028 }
2029
2030 static void
2031 gtk_tree_view_size_request (GtkWidget      *widget,
2032                             GtkRequisition *requisition)
2033 {
2034   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2035   GList *tmp_list;
2036
2037   /* we validate some rows initially just to make sure we have some size.
2038    * In practice, with a lot of static lists, this should get a good width.
2039    */
2040   do_validate_rows (tree_view, FALSE);
2041   gtk_tree_view_size_request_columns (tree_view);
2042   gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
2043
2044   requisition->width = tree_view->priv->width;
2045   requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
2046
2047   tmp_list = tree_view->priv->children;
2048
2049   while (tmp_list)
2050     {
2051       GtkTreeViewChild *child = tmp_list->data;
2052       GtkRequisition child_requisition;
2053
2054       tmp_list = tmp_list->next;
2055
2056       if (GTK_WIDGET_VISIBLE (child->widget))
2057         gtk_widget_size_request (child->widget, &child_requisition);
2058     }
2059 }
2060
2061
2062 static void
2063 invalidate_column (GtkTreeView       *tree_view,
2064                    GtkTreeViewColumn *column)
2065 {
2066   gint column_offset = 0;
2067   GList *list;
2068   GtkWidget *widget = GTK_WIDGET (tree_view);
2069   gboolean rtl;
2070
2071   if (!GTK_WIDGET_REALIZED (widget))
2072     return;
2073
2074   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2075   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2076        list;
2077        list = (rtl ? list->prev : list->next))
2078     {
2079       GtkTreeViewColumn *tmpcolumn = list->data;
2080       if (tmpcolumn == column)
2081         {
2082           GdkRectangle invalid_rect;
2083
2084           invalid_rect.x = column_offset;
2085           invalid_rect.y = 0;
2086           invalid_rect.width = column->width;
2087           invalid_rect.height = widget->allocation.height;
2088
2089           gdk_window_invalidate_rect (widget->window, &invalid_rect, TRUE);
2090           break;
2091         }
2092
2093       column_offset += tmpcolumn->width;
2094     }
2095 }
2096
2097 static void
2098 invalidate_last_column (GtkTreeView *tree_view)
2099 {
2100   GList *last_column;
2101   gboolean rtl;
2102
2103   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2104
2105   for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
2106        last_column;
2107        last_column = (rtl ? last_column->next : last_column->prev))
2108     {
2109       if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
2110         {
2111           invalidate_column (tree_view, last_column->data);
2112           return;
2113         }
2114     }
2115 }
2116
2117 static gint
2118 gtk_tree_view_get_real_requested_width_from_column (GtkTreeView       *tree_view,
2119                                                     GtkTreeViewColumn *column)
2120 {
2121   gint real_requested_width;
2122
2123   if (column->use_resized_width)
2124     {
2125       real_requested_width = column->resized_width;
2126     }
2127   else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2128     {
2129       real_requested_width = column->fixed_width;
2130     }
2131   else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
2132     {
2133       real_requested_width = MAX (column->requested_width, column->button_request);
2134     }
2135   else
2136     {
2137       real_requested_width = column->requested_width;
2138       if (real_requested_width < 0)
2139         real_requested_width = 0;
2140     }
2141
2142   if (column->min_width != -1)
2143     real_requested_width = MAX (real_requested_width, column->min_width);
2144   if (column->max_width != -1)
2145     real_requested_width = MIN (real_requested_width, column->max_width);
2146
2147   return real_requested_width;
2148 }
2149
2150 /* GtkWidget::size_allocate helper */
2151 static void
2152 gtk_tree_view_size_allocate_columns (GtkWidget *widget,
2153                                      gboolean  *width_changed)
2154 {
2155   GtkTreeView *tree_view;
2156   GList *list, *first_column, *last_column;
2157   GtkTreeViewColumn *column;
2158   GtkAllocation allocation;
2159   gint width = 0;
2160   gint extra, extra_per_column, extra_for_last;
2161   gint full_requested_width = 0;
2162   gint number_of_expand_columns = 0;
2163   gboolean column_changed = FALSE;
2164   gboolean rtl;
2165   gboolean update_expand;
2166
2167   tree_view = GTK_TREE_VIEW (widget);
2168
2169   for (last_column = g_list_last (tree_view->priv->columns);
2170        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
2171        last_column = last_column->prev)
2172     ;
2173   if (last_column == NULL)
2174     return;
2175
2176   for (first_column = g_list_first (tree_view->priv->columns);
2177        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
2178        first_column = first_column->next)
2179     ;
2180
2181   allocation.y = 0;
2182   allocation.height = tree_view->priv->header_height;
2183
2184   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2185
2186   /* find out how many extra space and expandable columns we have */
2187   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
2188     {
2189       column = (GtkTreeViewColumn *)list->data;
2190
2191       if (!column->visible)
2192         continue;
2193
2194       full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2195
2196       if (column->expand)
2197         number_of_expand_columns++;
2198     }
2199
2200   /* Only update the expand value if the width of the widget has changed,
2201    * or the number of expand columns has changed, or if there are no expand
2202    * columns, or if we didn't have an size-allocation yet after the
2203    * last validated node.
2204    */
2205   update_expand = (width_changed && *width_changed == TRUE)
2206       || number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
2207       || number_of_expand_columns == 0
2208       || tree_view->priv->post_validation_flag == TRUE;
2209
2210   tree_view->priv->post_validation_flag = FALSE;
2211
2212   if (!update_expand)
2213     {
2214       extra = tree_view->priv->last_extra_space;
2215       extra_for_last = MAX (widget->allocation.width - full_requested_width - extra, 0);
2216     }
2217   else
2218     {
2219       extra = MAX (widget->allocation.width - full_requested_width, 0);
2220       extra_for_last = 0;
2221
2222       tree_view->priv->last_extra_space = extra;
2223     }
2224
2225   if (number_of_expand_columns > 0)
2226     extra_per_column = extra/number_of_expand_columns;
2227   else
2228     extra_per_column = 0;
2229
2230   if (update_expand)
2231     {
2232       tree_view->priv->last_extra_space_per_column = extra_per_column;
2233       tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
2234     }
2235
2236   for (list = (rtl ? last_column : first_column);
2237        list != (rtl ? first_column->prev : last_column->next);
2238        list = (rtl ? list->prev : list->next))
2239     {
2240       gint real_requested_width = 0;
2241       gint old_width;
2242
2243       column = list->data;
2244       old_width = column->width;
2245
2246       if (!column->visible)
2247         continue;
2248
2249       /* We need to handle the dragged button specially.
2250        */
2251       if (column == tree_view->priv->drag_column)
2252         {
2253           GtkAllocation drag_allocation;
2254           gdk_drawable_get_size (tree_view->priv->drag_window,
2255                                  &(drag_allocation.width),
2256                                  &(drag_allocation.height));
2257           drag_allocation.x = 0;
2258           drag_allocation.y = 0;
2259           gtk_widget_size_allocate (tree_view->priv->drag_column->button,
2260                                     &drag_allocation);
2261           width += drag_allocation.width;
2262           continue;
2263         }
2264
2265       real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
2266
2267       allocation.x = width;
2268       column->width = real_requested_width;
2269
2270       if (column->expand)
2271         {
2272           if (number_of_expand_columns == 1)
2273             {
2274               /* We add the remander to the last column as
2275                * */
2276               column->width += extra;
2277             }
2278           else
2279             {
2280               column->width += extra_per_column;
2281               extra -= extra_per_column;
2282               number_of_expand_columns --;
2283             }
2284         }
2285       else if (number_of_expand_columns == 0 &&
2286                list == last_column)
2287         {
2288           column->width += extra;
2289         }
2290
2291       /* In addition to expand, the last column can get even more
2292        * extra space so all available space is filled up.
2293        */
2294       if (extra_for_last > 0 && list == last_column)
2295         column->width += extra_for_last;
2296
2297       g_object_notify (G_OBJECT (column), "width");
2298
2299       allocation.width = column->width;
2300       width += column->width;
2301
2302       if (column->width > old_width)
2303         column_changed = TRUE;
2304
2305       gtk_widget_size_allocate (column->button, &allocation);
2306
2307       if (column->window)
2308         gdk_window_move_resize (column->window,
2309                                 allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2310                                 allocation.y,
2311                                 TREE_VIEW_DRAG_WIDTH, allocation.height);
2312     }
2313
2314   /* We change the width here.  The user might have been resizing columns,
2315    * so the total width of the tree view changes.
2316    */
2317   tree_view->priv->width = width;
2318   if (width_changed)
2319     *width_changed = TRUE;
2320
2321   if (column_changed)
2322     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
2323 }
2324
2325
2326 static void
2327 gtk_tree_view_size_allocate (GtkWidget     *widget,
2328                              GtkAllocation *allocation)
2329 {
2330   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2331   GList *tmp_list;
2332   gboolean width_changed = FALSE;
2333   gint old_width = widget->allocation.width;
2334
2335   if (allocation->width != widget->allocation.width)
2336     width_changed = TRUE;
2337
2338   widget->allocation = *allocation;
2339
2340   tmp_list = tree_view->priv->children;
2341
2342   while (tmp_list)
2343     {
2344       GtkAllocation allocation;
2345
2346       GtkTreeViewChild *child = tmp_list->data;
2347       tmp_list = tmp_list->next;
2348
2349       /* totally ignore our child's requisition */
2350       allocation.x = child->x;
2351       allocation.y = child->y;
2352       allocation.width = child->width;
2353       allocation.height = child->height;
2354       gtk_widget_size_allocate (child->widget, &allocation);
2355     }
2356
2357   /* We size-allocate the columns first because the width of the
2358    * tree view (used in updating the adjustments below) might change.
2359    */
2360   gtk_tree_view_size_allocate_columns (widget, &width_changed);
2361
2362   tree_view->priv->hadjustment->page_size = allocation->width;
2363   tree_view->priv->hadjustment->page_increment = allocation->width * 0.9;
2364   tree_view->priv->hadjustment->step_increment = allocation->width * 0.1;
2365   tree_view->priv->hadjustment->lower = 0;
2366   tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->page_size, tree_view->priv->width);
2367
2368   if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
2369     {
2370       if (allocation->width < tree_view->priv->width)
2371         {
2372           if (tree_view->priv->init_hadjust_value)
2373             {
2374               tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2375               tree_view->priv->init_hadjust_value = FALSE;
2376             }
2377           else if (allocation->width != old_width)
2378             {
2379               tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width, 0, tree_view->priv->width - allocation->width);
2380             }
2381           else
2382             tree_view->priv->hadjustment->value = CLAMP (tree_view->priv->width - (tree_view->priv->prev_width - tree_view->priv->hadjustment->value), 0, tree_view->priv->width - allocation->width);
2383         }
2384       else
2385         {
2386           tree_view->priv->hadjustment->value = 0;
2387           tree_view->priv->init_hadjust_value = TRUE;
2388         }
2389     }
2390   else
2391     if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
2392       tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
2393
2394   gtk_adjustment_changed (tree_view->priv->hadjustment);
2395
2396   tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
2397   tree_view->priv->vadjustment->step_increment = tree_view->priv->vadjustment->page_size * 0.1;
2398   tree_view->priv->vadjustment->page_increment = tree_view->priv->vadjustment->page_size * 0.9;
2399   tree_view->priv->vadjustment->lower = 0;
2400   tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->page_size, tree_view->priv->height);
2401
2402   gtk_adjustment_changed (tree_view->priv->vadjustment);
2403
2404   /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
2405   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
2406     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
2407   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
2408     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
2409                               tree_view->priv->height - tree_view->priv->vadjustment->page_size);
2410   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
2411     gtk_tree_view_top_row_to_dy (tree_view);
2412   else
2413     gtk_tree_view_dy_to_top_row (tree_view);
2414
2415   if (GTK_WIDGET_REALIZED (widget))
2416     {
2417       gdk_window_move_resize (widget->window,
2418                               allocation->x, allocation->y,
2419                               allocation->width, allocation->height);
2420       gdk_window_move_resize (tree_view->priv->header_window,
2421                               - (gint) tree_view->priv->hadjustment->value,
2422                               0,
2423                               MAX (tree_view->priv->width, allocation->width),
2424                               tree_view->priv->header_height);
2425       gdk_window_move_resize (tree_view->priv->bin_window,
2426                               - (gint) tree_view->priv->hadjustment->value,
2427                               TREE_VIEW_HEADER_HEIGHT (tree_view),
2428                               MAX (tree_view->priv->width, allocation->width),
2429                               allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
2430     }
2431
2432   if (tree_view->priv->tree == NULL)
2433     invalidate_empty_focus (tree_view);
2434
2435   if (GTK_WIDGET_REALIZED (widget))
2436     {
2437       gboolean has_expand_column = FALSE;
2438       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
2439         {
2440           if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
2441             {
2442               has_expand_column = TRUE;
2443               break;
2444             }
2445         }
2446
2447       /* This little hack only works if we have an LTR locale, and no column has the  */
2448       if (width_changed)
2449         {
2450           if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
2451               ! has_expand_column)
2452             invalidate_last_column (tree_view);
2453           else
2454             gtk_widget_queue_draw (widget);
2455         }
2456     }
2457 }
2458
2459 /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
2460 static void
2461 grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
2462 {
2463   if (GTK_WIDGET_CAN_FOCUS (tree_view) && !GTK_WIDGET_HAS_FOCUS (tree_view))
2464     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
2465   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
2466 }
2467
2468 static inline gboolean
2469 row_is_separator (GtkTreeView *tree_view,
2470                   GtkTreeIter *iter,
2471                   GtkTreePath *path)
2472 {
2473   gboolean is_separator = FALSE;
2474
2475   if (tree_view->priv->row_separator_func)
2476     {
2477       GtkTreeIter tmpiter;
2478
2479       if (iter)
2480         tmpiter = *iter;
2481       else
2482         gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
2483
2484       is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
2485                                                           &tmpiter,
2486                                                           tree_view->priv->row_separator_data);
2487     }
2488
2489   return is_separator;
2490 }
2491
2492 static gboolean
2493 gtk_tree_view_button_press (GtkWidget      *widget,
2494                             GdkEventButton *event)
2495 {
2496   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2497   GList *list;
2498   GtkTreeViewColumn *column = NULL;
2499   gint i;
2500   GdkRectangle background_area;
2501   GdkRectangle cell_area;
2502   gint vertical_separator;
2503   gint horizontal_separator;
2504   gboolean path_is_selectable;
2505   gboolean rtl;
2506
2507   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2508   gtk_tree_view_stop_editing (tree_view, FALSE);
2509   gtk_widget_style_get (widget,
2510                         "vertical-separator", &vertical_separator,
2511                         "horizontal-separator", &horizontal_separator,
2512                         NULL);
2513
2514
2515   /* Because grab_focus can cause reentrancy, we delay grab_focus until after
2516    * we're done handling the button press.
2517    */
2518
2519   if (event->window == tree_view->priv->bin_window)
2520     {
2521       GtkRBNode *node;
2522       GtkRBTree *tree;
2523       GtkTreePath *path;
2524       gchar *path_string;
2525       gint depth;
2526       gint new_y;
2527       gint y_offset;
2528       gint dval;
2529       gint pre_val, aft_val;
2530       GtkTreeViewColumn *column = NULL;
2531       GtkCellRenderer *focus_cell = NULL;
2532       gint column_handled_click = FALSE;
2533       gboolean row_double_click = FALSE;
2534       gboolean rtl;
2535       gboolean node_selected;
2536
2537       /* Empty tree? */
2538       if (tree_view->priv->tree == NULL)
2539         {
2540           grab_focus_and_unset_draw_keyfocus (tree_view);
2541           return TRUE;
2542         }
2543
2544       /* are we in an arrow? */
2545       if (tree_view->priv->prelight_node &&
2546           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
2547           TREE_VIEW_DRAW_EXPANDERS (tree_view))
2548         {
2549           if (event->button == 1)
2550             {
2551               gtk_grab_add (widget);
2552               tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
2553               tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
2554               gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
2555                                         tree_view->priv->prelight_tree,
2556                                         tree_view->priv->prelight_node,
2557                                         event->x,
2558                                         event->y);
2559             }
2560
2561           grab_focus_and_unset_draw_keyfocus (tree_view);
2562           return TRUE;
2563         }
2564
2565       /* find the node that was clicked */
2566       new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
2567       if (new_y < 0)
2568         new_y = 0;
2569       y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
2570
2571       if (node == NULL)
2572         {
2573           /* We clicked in dead space */
2574           grab_focus_and_unset_draw_keyfocus (tree_view);
2575           return TRUE;
2576         }
2577
2578       /* Get the path and the node */
2579       path = _gtk_tree_view_find_path (tree_view, tree, node);
2580       path_is_selectable = !row_is_separator (tree_view, NULL, path);
2581
2582       if (!path_is_selectable)
2583         {
2584           gtk_tree_path_free (path);
2585           grab_focus_and_unset_draw_keyfocus (tree_view);
2586           return TRUE;
2587         }
2588
2589       depth = gtk_tree_path_get_depth (path);
2590       background_area.y = y_offset + event->y;
2591       background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
2592       background_area.x = 0;
2593
2594
2595       /* Let the column have a chance at selecting it. */
2596       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
2597       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
2598            list; list = (rtl ? list->prev : list->next))
2599         {
2600           GtkTreeViewColumn *candidate = list->data;
2601
2602           if (!candidate->visible)
2603             continue;
2604
2605           background_area.width = candidate->width;
2606           if ((background_area.x > (gint) event->x) ||
2607               (background_area.x + background_area.width <= (gint) event->x))
2608             {
2609               background_area.x += background_area.width;
2610               continue;
2611             }
2612
2613           /* we found the focus column */
2614           column = candidate;
2615           cell_area = background_area;
2616           cell_area.width -= horizontal_separator;
2617           cell_area.height -= vertical_separator;
2618           cell_area.x += horizontal_separator/2;
2619           cell_area.y += vertical_separator/2;
2620           if (gtk_tree_view_is_expander_column (tree_view, column))
2621             {
2622               if (!rtl)
2623                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
2624               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
2625
2626               if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
2627                 {
2628                   if (!rtl)
2629                     cell_area.x += depth * tree_view->priv->expander_size;
2630                   cell_area.width -= depth * tree_view->priv->expander_size;
2631                 }
2632             }
2633           break;
2634         }
2635
2636       if (column == NULL)
2637         {
2638           gtk_tree_path_free (path);
2639           grab_focus_and_unset_draw_keyfocus (tree_view);
2640           return FALSE;
2641         }
2642
2643       tree_view->priv->focus_column = column;
2644
2645       /* decide if we edit */
2646       if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
2647           !(event->state & gtk_accelerator_get_default_mod_mask ()))
2648         {
2649           GtkTreePath *anchor;
2650           GtkTreeIter iter;
2651
2652           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
2653           gtk_tree_view_column_cell_set_cell_data (column,
2654                                                    tree_view->priv->model,
2655                                                    &iter,
2656                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
2657                                                    node->children?TRUE:FALSE);
2658
2659           if (tree_view->priv->anchor)
2660             anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
2661           else
2662             anchor = NULL;
2663
2664           if ((anchor && !gtk_tree_path_compare (anchor, path))
2665               || !_gtk_tree_view_column_has_editable_cell (column))
2666             {
2667               GtkCellEditable *cell_editable = NULL;
2668
2669               /* FIXME: get the right flags */
2670               guint flags = 0;
2671
2672               path_string = gtk_tree_path_to_string (path);
2673
2674               if (_gtk_tree_view_column_cell_event (column,
2675                                                     &cell_editable,
2676                                                     (GdkEvent *)event,
2677                                                     path_string,
2678                                                     &background_area,
2679                                                     &cell_area, flags))
2680                 {
2681                   if (cell_editable != NULL)
2682                     {
2683                       gint left, right;
2684                       GdkRectangle area;
2685
2686                       area = cell_area;
2687                       _gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
2688
2689                       area.x += left;
2690                       area.width -= right + left;
2691
2692                       gtk_tree_view_real_start_editing (tree_view,
2693                                                         column,
2694                                                         path,
2695                                                         cell_editable,
2696                                                         &area,
2697                                                         (GdkEvent *)event,
2698                                                         flags);
2699                       g_free (path_string);
2700                       gtk_tree_path_free (path);
2701                       gtk_tree_path_free (anchor);
2702                       return TRUE;
2703                     }
2704                   column_handled_click = TRUE;
2705                 }
2706               g_free (path_string);
2707             }
2708           if (anchor)
2709             gtk_tree_path_free (anchor);
2710         }
2711
2712       /* select */
2713       node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
2714       pre_val = tree_view->priv->vadjustment->value;
2715
2716       /* we only handle selection modifications on the first button press
2717        */
2718       if (event->type == GDK_BUTTON_PRESS)
2719         {
2720           if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2721             tree_view->priv->ctrl_pressed = TRUE;
2722           if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2723             tree_view->priv->shift_pressed = TRUE;
2724
2725           focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
2726           if (focus_cell)
2727             gtk_tree_view_column_focus_cell (column, focus_cell);
2728
2729           if (event->state & GDK_CONTROL_MASK)
2730             {
2731               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2732               gtk_tree_view_real_toggle_cursor_row (tree_view);
2733             }
2734           else if (event->state & GDK_SHIFT_MASK)
2735             {
2736               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
2737               gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
2738             }
2739           else
2740             {
2741               gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
2742             }
2743
2744           tree_view->priv->ctrl_pressed = FALSE;
2745           tree_view->priv->shift_pressed = FALSE;
2746         }
2747
2748       /* the treeview may have been scrolled because of _set_cursor,
2749        * correct here
2750        */
2751
2752       aft_val = tree_view->priv->vadjustment->value;
2753       dval = pre_val - aft_val;
2754
2755       cell_area.y += dval;
2756       background_area.y += dval;
2757
2758       /* Save press to possibly begin a drag
2759        */
2760       if (!column_handled_click &&
2761           !tree_view->priv->in_grab &&
2762           tree_view->priv->pressed_button < 0)
2763         {
2764           tree_view->priv->pressed_button = event->button;
2765           tree_view->priv->press_start_x = event->x;
2766           tree_view->priv->press_start_y = event->y;
2767
2768           if (tree_view->priv->rubber_banding_enable
2769               && !node_selected
2770               && tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
2771             {
2772               tree_view->priv->press_start_y += tree_view->priv->dy;
2773               tree_view->priv->rubber_band_x = event->x;
2774               tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
2775               tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
2776
2777               if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2778                 tree_view->priv->rubber_band_ctrl = TRUE;
2779               if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2780                 tree_view->priv->rubber_band_shift = TRUE;
2781             }
2782         }
2783
2784       /* Test if a double click happened on the same row. */
2785       if (event->button == 1)
2786         {
2787           /* We also handle triple clicks here, because a user could have done
2788            * a first click and a second double click on different rows.
2789            */
2790           if ((event->type == GDK_2BUTTON_PRESS
2791                || event->type == GDK_3BUTTON_PRESS)
2792               && tree_view->priv->last_button_press)
2793             {
2794               GtkTreePath *lsc;
2795
2796               lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
2797
2798               if (lsc)
2799                 {
2800                   row_double_click = !gtk_tree_path_compare (lsc, path);
2801                   gtk_tree_path_free (lsc);
2802                 }
2803             }
2804
2805           if (row_double_click)
2806             {
2807               if (tree_view->priv->last_button_press)
2808                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2809               if (tree_view->priv->last_button_press_2)
2810                 gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
2811               tree_view->priv->last_button_press = NULL;
2812               tree_view->priv->last_button_press_2 = NULL;
2813             }
2814           else
2815             {
2816               if (tree_view->priv->last_button_press)
2817                 gtk_tree_row_reference_free (tree_view->priv->last_button_press);
2818               tree_view->priv->last_button_press = tree_view->priv->last_button_press_2;
2819               tree_view->priv->last_button_press_2 = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
2820             }
2821         }
2822
2823       if (row_double_click)
2824         {
2825           gtk_grab_remove (widget);
2826           gtk_tree_view_row_activated (tree_view, path, column);
2827
2828           if (tree_view->priv->pressed_button == event->button)
2829             tree_view->priv->pressed_button = -1;
2830         }
2831
2832       gtk_tree_path_free (path);
2833
2834       /* If we activated the row through a double click we don't want to grab
2835        * focus back, as moving focus to another widget is pretty common.
2836        */
2837       if (!row_double_click)
2838         grab_focus_and_unset_draw_keyfocus (tree_view);
2839
2840       return TRUE;
2841     }
2842
2843   /* We didn't click in the window.  Let's check to see if we clicked on a column resize window.
2844    */
2845   for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
2846     {
2847       column = list->data;
2848       if (event->window == column->window &&
2849           column->resizable &&
2850           column->window)
2851         {
2852           gpointer drag_data;
2853
2854           if (event->type == GDK_2BUTTON_PRESS &&
2855               gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2856             {
2857               column->use_resized_width = FALSE;
2858               _gtk_tree_view_column_autosize (tree_view, column);
2859               return TRUE;
2860             }
2861
2862           if (gdk_pointer_grab (column->window, FALSE,
2863                                 GDK_POINTER_MOTION_HINT_MASK |
2864                                 GDK_BUTTON1_MOTION_MASK |
2865                                 GDK_BUTTON_RELEASE_MASK,
2866                                 NULL, NULL, event->time))
2867             return FALSE;
2868
2869           gtk_grab_add (widget);
2870           GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2871           column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
2872
2873           /* block attached dnd signal handler */
2874           drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2875           if (drag_data)
2876             g_signal_handlers_block_matched (widget,
2877                                              G_SIGNAL_MATCH_DATA,
2878                                              0, 0, NULL, NULL,
2879                                              drag_data);
2880
2881           tree_view->priv->drag_pos = i;
2882           tree_view->priv->x_drag = column->button->allocation.x + (rtl ? 0 : column->button->allocation.width);
2883
2884           if (!GTK_WIDGET_HAS_FOCUS (widget))
2885             gtk_widget_grab_focus (widget);
2886
2887           return TRUE;
2888         }
2889     }
2890   return FALSE;
2891 }
2892
2893 /* GtkWidget::button_release_event helper */
2894 static gboolean
2895 gtk_tree_view_button_release_drag_column (GtkWidget      *widget,
2896                                           GdkEventButton *event)
2897 {
2898   GtkTreeView *tree_view;
2899   GList *l;
2900   gboolean rtl;
2901
2902   tree_view = GTK_TREE_VIEW (widget);
2903
2904   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
2905   gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2906   gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
2907
2908   /* Move the button back */
2909   g_object_ref (tree_view->priv->drag_column->button);
2910   gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
2911   gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
2912   gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
2913   g_object_unref (tree_view->priv->drag_column->button);
2914   gtk_widget_queue_resize (widget);
2915   if (tree_view->priv->drag_column->resizable)
2916     {
2917       gdk_window_raise (tree_view->priv->drag_column->window);
2918       gdk_window_show (tree_view->priv->drag_column->window);
2919     }
2920   else
2921     gdk_window_hide (tree_view->priv->drag_column->window);
2922
2923   gtk_widget_grab_focus (tree_view->priv->drag_column->button);
2924
2925   if (rtl)
2926     {
2927       if (tree_view->priv->cur_reorder &&
2928           tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
2929         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2930                                          tree_view->priv->cur_reorder->right_column);
2931     }
2932   else
2933     {
2934       if (tree_view->priv->cur_reorder &&
2935           tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
2936         gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
2937                                          tree_view->priv->cur_reorder->left_column);
2938     }
2939   tree_view->priv->drag_column = NULL;
2940   gdk_window_hide (tree_view->priv->drag_window);
2941
2942   for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
2943     g_slice_free (GtkTreeViewColumnReorder, l->data);
2944   g_list_free (tree_view->priv->column_drag_info);
2945   tree_view->priv->column_drag_info = NULL;
2946   tree_view->priv->cur_reorder = NULL;
2947
2948   if (tree_view->priv->drag_highlight_window)
2949     gdk_window_hide (tree_view->priv->drag_highlight_window);
2950
2951   /* Reset our flags */
2952   tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
2953   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
2954
2955   return TRUE;
2956 }
2957
2958 /* GtkWidget::button_release_event helper */
2959 static gboolean
2960 gtk_tree_view_button_release_column_resize (GtkWidget      *widget,
2961                                             GdkEventButton *event)
2962 {
2963   GtkTreeView *tree_view;
2964   gpointer drag_data;
2965
2966   tree_view = GTK_TREE_VIEW (widget);
2967
2968   tree_view->priv->drag_pos = -1;
2969
2970   /* unblock attached dnd signal handler */
2971   drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
2972   if (drag_data)
2973     g_signal_handlers_unblock_matched (widget,
2974                                        G_SIGNAL_MATCH_DATA,
2975                                        0, 0, NULL, NULL,
2976                                        drag_data);
2977
2978   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
2979   gtk_grab_remove (widget);
2980   gdk_display_pointer_ungrab (gdk_drawable_get_display (event->window),
2981                               event->time);
2982   return TRUE;
2983 }
2984
2985 static gboolean
2986 gtk_tree_view_button_release (GtkWidget      *widget,
2987                               GdkEventButton *event)
2988 {
2989   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
2990
2991   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
2992     return gtk_tree_view_button_release_drag_column (widget, event);
2993
2994   if (tree_view->priv->rubber_band_status)
2995     gtk_tree_view_stop_rubber_band (tree_view);
2996
2997   if (tree_view->priv->pressed_button == event->button)
2998     tree_view->priv->pressed_button = -1;
2999
3000   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3001     return gtk_tree_view_button_release_column_resize (widget, event);
3002
3003   if (tree_view->priv->button_pressed_node == NULL)
3004     return FALSE;
3005
3006   if (event->button == 1)
3007     {
3008       gtk_grab_remove (widget);
3009       if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
3010           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
3011         {
3012           GtkTreePath *path = NULL;
3013
3014           path = _gtk_tree_view_find_path (tree_view,
3015                                            tree_view->priv->button_pressed_tree,
3016                                            tree_view->priv->button_pressed_node);
3017           /* Actually activate the node */
3018           if (tree_view->priv->button_pressed_node->children == NULL)
3019             gtk_tree_view_real_expand_row (tree_view, path,
3020                                            tree_view->priv->button_pressed_tree,
3021                                            tree_view->priv->button_pressed_node,
3022                                            FALSE, TRUE);
3023           else
3024             gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
3025                                              tree_view->priv->button_pressed_tree,
3026                                              tree_view->priv->button_pressed_node, TRUE);
3027           gtk_tree_path_free (path);
3028         }
3029
3030       tree_view->priv->button_pressed_tree = NULL;
3031       tree_view->priv->button_pressed_node = NULL;
3032     }
3033
3034   return TRUE;
3035 }
3036
3037 static gboolean
3038 gtk_tree_view_grab_broken (GtkWidget          *widget,
3039                            GdkEventGrabBroken *event)
3040 {
3041   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3042
3043   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
3044     gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
3045
3046   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
3047     gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
3048
3049   return TRUE;
3050 }
3051
3052 #if 0
3053 static gboolean
3054 gtk_tree_view_configure (GtkWidget *widget,
3055                          GdkEventConfigure *event)
3056 {
3057   GtkTreeView *tree_view;
3058
3059   tree_view = GTK_TREE_VIEW (widget);
3060   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
3061
3062   return FALSE;
3063 }
3064 #endif
3065
3066 /* GtkWidget::motion_event function set.
3067  */
3068
3069 static gboolean
3070 coords_are_over_arrow (GtkTreeView *tree_view,
3071                        GtkRBTree   *tree,
3072                        GtkRBNode   *node,
3073                        /* these are in bin window coords */
3074                        gint         x,
3075                        gint         y)
3076 {
3077   GdkRectangle arrow;
3078   gint x2;
3079
3080   if (!GTK_WIDGET_REALIZED (tree_view))
3081     return FALSE;
3082
3083   if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
3084     return FALSE;
3085
3086   arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
3087
3088   arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
3089
3090   gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
3091
3092   arrow.width = x2 - arrow.x;
3093
3094   return (x >= arrow.x &&
3095           x < (arrow.x + arrow.width) &&
3096           y >= arrow.y &&
3097           y < (arrow.y + arrow.height));
3098 }
3099
3100 static gboolean
3101 auto_expand_timeout (gpointer data)
3102 {
3103   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
3104   GtkTreePath *path;
3105
3106   if (tree_view->priv->prelight_node)
3107     {
3108       path = _gtk_tree_view_find_path (tree_view,
3109                                        tree_view->priv->prelight_tree,
3110                                        tree_view->priv->prelight_node);
3111
3112       if (tree_view->priv->prelight_node->children)
3113         gtk_tree_view_collapse_row (tree_view, path);
3114       else
3115         gtk_tree_view_expand_row (tree_view, path, FALSE);
3116
3117       gtk_tree_path_free (path);
3118     }
3119
3120   tree_view->priv->auto_expand_timeout = 0;
3121
3122   return FALSE;
3123 }
3124
3125 static void
3126 remove_auto_expand_timeout (GtkTreeView *tree_view)
3127 {
3128   if (tree_view->priv->auto_expand_timeout != 0)
3129     {
3130       g_source_remove (tree_view->priv->auto_expand_timeout);
3131       tree_view->priv->auto_expand_timeout = 0;
3132     }
3133 }
3134
3135 static void
3136 do_prelight (GtkTreeView *tree_view,
3137              GtkRBTree   *tree,
3138              GtkRBNode   *node,
3139              /* these are in bin_window coords */
3140              gint         x,
3141              gint         y)
3142 {
3143   if (tree_view->priv->prelight_tree == tree &&
3144       tree_view->priv->prelight_node == node)
3145     {
3146       /*  We are still on the same node,
3147           but we might need to take care of the arrow  */
3148
3149       if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3150         {
3151           gboolean over_arrow;
3152           gboolean flag_set;
3153
3154           over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
3155           flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
3156                                              GTK_TREE_VIEW_ARROW_PRELIT);
3157
3158           if (over_arrow != flag_set)
3159             {
3160               if (over_arrow)
3161                 GTK_TREE_VIEW_SET_FLAG (tree_view,
3162                                         GTK_TREE_VIEW_ARROW_PRELIT);
3163               else
3164                 GTK_TREE_VIEW_UNSET_FLAG (tree_view,
3165                                           GTK_TREE_VIEW_ARROW_PRELIT);
3166
3167               gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3168             }
3169         }
3170
3171       return;
3172     }
3173
3174   if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
3175     {
3176       /*  Unprelight the old node and arrow  */
3177
3178       GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
3179                              GTK_RBNODE_IS_PRELIT);
3180
3181       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
3182           && TREE_VIEW_DRAW_EXPANDERS (tree_view))
3183         {
3184           GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3185
3186           gtk_tree_view_draw_arrow (tree_view,
3187                                     tree_view->priv->prelight_tree,
3188                                     tree_view->priv->prelight_node,
3189                                     x,
3190                                     y);
3191         }
3192
3193       _gtk_tree_view_queue_draw_node (tree_view,
3194                                       tree_view->priv->prelight_tree,
3195                                       tree_view->priv->prelight_node,
3196                                       NULL);
3197     }
3198
3199
3200   if (tree_view->priv->hover_expand)
3201     remove_auto_expand_timeout (tree_view);
3202
3203   /*  Set the new prelight values  */
3204   tree_view->priv->prelight_node = node;
3205   tree_view->priv->prelight_tree = tree;
3206
3207   if (!node || !tree)
3208     return;
3209
3210   /*  Prelight the new node and arrow  */
3211
3212   if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
3213       && coords_are_over_arrow (tree_view, tree, node, x, y))
3214     {
3215       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
3216
3217       gtk_tree_view_draw_arrow (tree_view, tree, node, x, y);
3218     }
3219
3220   GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
3221
3222   _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
3223
3224   if (tree_view->priv->hover_expand)
3225     {
3226       tree_view->priv->auto_expand_timeout =
3227         gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
3228     }
3229 }
3230
3231 static void
3232 prelight_or_select (GtkTreeView *tree_view,
3233                     GtkRBTree   *tree,
3234                     GtkRBNode   *node,
3235                     /* these are in bin_window coords */
3236                     gint         x,
3237                     gint         y)
3238 {
3239   GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
3240
3241   if (tree_view->priv->hover_selection &&
3242       (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
3243       !(tree_view->priv->edited_column &&
3244         tree_view->priv->edited_column->editable_widget))
3245     {
3246       if (node)
3247         {
3248           if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3249             {
3250               GtkTreePath *path;
3251
3252               path = _gtk_tree_view_find_path (tree_view, tree, node);
3253               gtk_tree_selection_select_path (tree_view->priv->selection, path);
3254               if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
3255                 {
3256                   GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
3257                   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
3258                 }
3259               gtk_tree_path_free (path);
3260             }
3261         }
3262
3263       else if (mode == GTK_SELECTION_SINGLE)
3264         gtk_tree_selection_unselect_all (tree_view->priv->selection);
3265     }
3266
3267     do_prelight (tree_view, tree, node, x, y);
3268 }
3269
3270 static void
3271 ensure_unprelighted (GtkTreeView *tree_view)
3272 {
3273   do_prelight (tree_view,
3274                NULL, NULL,
3275                -1000, -1000); /* coords not possibly over an arrow */
3276
3277   g_assert (tree_view->priv->prelight_node == NULL);
3278 }
3279
3280
3281
3282
3283 /* Our motion arrow is either a box (in the case of the original spot)
3284  * or an arrow.  It is expander_size wide.
3285  */
3286 /*
3287  * 11111111111111
3288  * 01111111111110
3289  * 00111111111100
3290  * 00011111111000
3291  * 00001111110000
3292  * 00000111100000
3293  * 00000111100000
3294  * 00000111100000
3295  * ~ ~ ~ ~ ~ ~ ~
3296  * 00000111100000
3297  * 00000111100000
3298  * 00000111100000
3299  * 00001111110000
3300  * 00011111111000
3301  * 00111111111100
3302  * 01111111111110
3303  * 11111111111111
3304  */
3305
3306 static void
3307 gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
3308 {
3309   GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
3310   GtkWidget *widget = GTK_WIDGET (tree_view);
3311   GdkBitmap *mask = NULL;
3312   gint x;
3313   gint y;
3314   gint width;
3315   gint height;
3316   gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
3317   GdkWindowAttr attributes;
3318   guint attributes_mask;
3319
3320   if (!reorder ||
3321       reorder->left_column == tree_view->priv->drag_column ||
3322       reorder->right_column == tree_view->priv->drag_column)
3323     arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3324   else if (reorder->left_column || reorder->right_column)
3325     {
3326       GdkRectangle visible_rect;
3327       gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3328       if (reorder->left_column)
3329         x = reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width;
3330       else
3331         x = reorder->right_column->button->allocation.x;
3332
3333       if (x < visible_rect.x)
3334         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
3335       else if (x > visible_rect.x + visible_rect.width)
3336         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
3337       else
3338         arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
3339     }
3340
3341   /* We want to draw the rectangle over the initial location. */
3342   if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3343     {
3344       GdkGC *gc;
3345       GdkColor col;
3346
3347       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
3348         {
3349           if (tree_view->priv->drag_highlight_window)
3350             {
3351               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3352                                         NULL);
3353               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3354             }
3355
3356           attributes.window_type = GDK_WINDOW_CHILD;
3357           attributes.wclass = GDK_INPUT_OUTPUT;
3358           attributes.x = tree_view->priv->drag_column_x;
3359           attributes.y = 0;
3360           width = attributes.width = tree_view->priv->drag_column->button->allocation.width;
3361           height = attributes.height = tree_view->priv->drag_column->button->allocation.height;
3362           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3363           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3364           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3365           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3366           tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
3367           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3368
3369           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3370           gc = gdk_gc_new (mask);
3371           col.pixel = 1;
3372           gdk_gc_set_foreground (gc, &col);
3373           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3374           col.pixel = 0;
3375           gdk_gc_set_foreground(gc, &col);
3376           gdk_draw_rectangle (mask, gc, TRUE, 2, 2, width - 4, height - 4);
3377           g_object_unref (gc);
3378
3379           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3380                                          mask, 0, 0);
3381           if (mask) g_object_unref (mask);
3382           tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
3383         }
3384     }
3385   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
3386     {
3387       gint i, j = 1;
3388       GdkGC *gc;
3389       GdkColor col;
3390
3391       width = tree_view->priv->expander_size;
3392
3393       /* Get x, y, width, height of arrow */
3394       gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
3395       if (reorder->left_column)
3396         {
3397           x += reorder->left_column->button->allocation.x + reorder->left_column->button->allocation.width - width/2;
3398           height = reorder->left_column->button->allocation.height;
3399         }
3400       else
3401         {
3402           x += reorder->right_column->button->allocation.x - width/2;
3403           height = reorder->right_column->button->allocation.height;
3404         }
3405       y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
3406       height += tree_view->priv->expander_size;
3407
3408       /* Create the new window */
3409       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
3410         {
3411           if (tree_view->priv->drag_highlight_window)
3412             {
3413               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3414                                         NULL);
3415               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3416             }
3417
3418           attributes.window_type = GDK_WINDOW_TEMP;
3419           attributes.wclass = GDK_INPUT_OUTPUT;
3420           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3421           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3422           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3423           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3424           attributes.x = x;
3425           attributes.y = y;
3426           attributes.width = width;
3427           attributes.height = height;
3428           tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
3429                                                                    &attributes, attributes_mask);
3430           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3431
3432           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3433           gc = gdk_gc_new (mask);
3434           col.pixel = 1;
3435           gdk_gc_set_foreground (gc, &col);
3436           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3437
3438           /* Draw the 2 arrows as per above */
3439           col.pixel = 0;
3440           gdk_gc_set_foreground (gc, &col);
3441           for (i = 0; i < width; i ++)
3442             {
3443               if (i == (width/2 - 1))
3444                 continue;
3445               gdk_draw_line (mask, gc, i, j, i, height - j);
3446               if (i < (width/2 - 1))
3447                 j++;
3448               else
3449                 j--;
3450             }
3451           g_object_unref (gc);
3452           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3453                                          mask, 0, 0);
3454           if (mask) g_object_unref (mask);
3455         }
3456
3457       tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
3458       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3459     }
3460   else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
3461            arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3462     {
3463       gint i, j = 1;
3464       GdkGC *gc;
3465       GdkColor col;
3466
3467       width = tree_view->priv->expander_size;
3468
3469       /* Get x, y, width, height of arrow */
3470       width = width/2; /* remember, the arrow only takes half the available width */
3471       gdk_window_get_origin (widget->window, &x, &y);
3472       if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3473         x += widget->allocation.width - width;
3474
3475       if (reorder->left_column)
3476         height = reorder->left_column->button->allocation.height;
3477       else
3478         height = reorder->right_column->button->allocation.height;
3479
3480       y -= tree_view->priv->expander_size;
3481       height += 2*tree_view->priv->expander_size;
3482
3483       /* Create the new window */
3484       if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
3485           tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
3486         {
3487           if (tree_view->priv->drag_highlight_window)
3488             {
3489               gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
3490                                         NULL);
3491               gdk_window_destroy (tree_view->priv->drag_highlight_window);
3492             }
3493
3494           attributes.window_type = GDK_WINDOW_TEMP;
3495           attributes.wclass = GDK_INPUT_OUTPUT;
3496           attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
3497           attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
3498           attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
3499           attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
3500           attributes.x = x;
3501           attributes.y = y;
3502           attributes.width = width;
3503           attributes.height = height;
3504           tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
3505           gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
3506
3507           mask = gdk_pixmap_new (tree_view->priv->drag_highlight_window, width, height, 1);
3508           gc = gdk_gc_new (mask);
3509           col.pixel = 1;
3510           gdk_gc_set_foreground (gc, &col);
3511           gdk_draw_rectangle (mask, gc, TRUE, 0, 0, width, height);
3512
3513           /* Draw the 2 arrows as per above */
3514           col.pixel = 0;
3515           gdk_gc_set_foreground (gc, &col);
3516           j = tree_view->priv->expander_size;
3517           for (i = 0; i < width; i ++)
3518             {
3519               gint k;
3520               if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
3521                 k = width - i - 1;
3522               else
3523                 k = i;
3524               gdk_draw_line (mask, gc, k, j, k, height - j);
3525               gdk_draw_line (mask, gc, k, 0, k, tree_view->priv->expander_size - j);
3526               gdk_draw_line (mask, gc, k, height, k, height - tree_view->priv->expander_size + j);
3527               j--;
3528             }
3529           g_object_unref (gc);
3530           gdk_window_shape_combine_mask (tree_view->priv->drag_highlight_window,
3531                                          mask, 0, 0);
3532           if (mask) g_object_unref (mask);
3533         }
3534
3535       tree_view->priv->drag_column_window_state = arrow_type;
3536       gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
3537    }
3538   else
3539     {
3540       g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
3541       gdk_window_hide (tree_view->priv->drag_highlight_window);
3542       return;
3543     }
3544
3545   gdk_window_show (tree_view->priv->drag_highlight_window);
3546   gdk_window_raise (tree_view->priv->drag_highlight_window);
3547 }
3548
3549 static gboolean
3550 gtk_tree_view_motion_resize_column (GtkWidget      *widget,
3551                                     GdkEventMotion *event)
3552 {
3553   gint x;
3554   gint new_width;
3555   GtkTreeViewColumn *column;
3556   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
3557
3558   column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
3559
3560   if (event->is_hint || event->window != widget->window)
3561     gtk_widget_get_pointer (widget, &x, NULL);
3562   else
3563     x = event->x;
3564
3565   if (tree_view->priv->hadjustment)
3566     x += tree_view->priv->hadjustment->value;
3567
3568   new_width = gtk_tree_view_new_column_width (tree_view,
3569                                               tree_view->priv->drag_pos, &x);
3570   if (x != tree_view->priv->x_drag &&
3571       (new_width != column->fixed_width))
3572     {
3573       column->use_resized_width = TRUE;
3574       column->resized_width = new_width;
3575       if (column->expand)
3576         column->resized_width -= tree_view->priv->last_extra_space_per_column;
3577       gtk_widget_queue_resize (widget);
3578     }
3579
3580   return FALSE;
3581 }
3582
3583
3584 static void
3585 gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
3586 {
3587   GtkTreeViewColumnReorder *reorder = NULL;
3588   GList *list;
3589   gint mouse_x;
3590
3591   gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
3592   for (list = tree_view->priv->column_drag_info; list; list = list->next)
3593     {
3594       reorder = (GtkTreeViewColumnReorder *) list->data;
3595       if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
3596         break;
3597       reorder = NULL;
3598     }
3599
3600   /*  if (reorder && reorder == tree_view->priv->cur_reorder)
3601       return;*/
3602
3603   tree_view->priv->cur_reorder = reorder;
3604   gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
3605 }
3606
3607 static void
3608 gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
3609 {
3610   GdkRectangle visible_rect;
3611   gint y;
3612   gint offset;
3613   gfloat value;
3614
3615   gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
3616   y += tree_view->priv->dy;
3617
3618   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3619
3620   /* see if we are near the edge. */
3621   offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
3622   if (offset > 0)
3623     {
3624       offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
3625       if (offset < 0)
3626         return;
3627     }
3628
3629   value = CLAMP (tree_view->priv->vadjustment->value + offset, 0.0,
3630                  tree_view->priv->vadjustment->upper - tree_view->priv->vadjustment->page_size);
3631   gtk_adjustment_set_value (tree_view->priv->vadjustment, value);
3632 }
3633
3634 static gboolean
3635 gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
3636 {
3637   GdkRectangle visible_rect;
3638   gint x;
3639   gint offset;
3640   gfloat value;
3641
3642   gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
3643
3644   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
3645
3646   /* See if we are near the edge. */
3647   offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
3648   if (offset > 0)
3649     {
3650       offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
3651       if (offset < 0)
3652         return TRUE;
3653     }
3654   offset = offset/3;
3655
3656   value = CLAMP (tree_view->priv->hadjustment->value + offset,
3657                  0.0, tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size);
3658   gtk_adjustment_set_value (tree_view->priv->hadjustment, value);
3659
3660   return TRUE;
3661
3662 }
3663
3664 static gboolean
3665 gtk_tree_view_motion_drag_column (GtkWidget      *widget,
3666                                   GdkEventMotion *event)
3667 {
3668   GtkTreeView *tree_view = (GtkTreeView *) widget;
3669   GtkTreeViewColumn *column = tree_view->priv->drag_column;
3670   gint x, y;
3671
3672   /* Sanity Check */
3673   if ((column == NULL) ||
3674       (event->window != tree_view->priv->drag_window))
3675     return FALSE;
3676
3677   /* Handle moving the header */
3678   gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
3679   x = CLAMP (x + (gint)event->x - column->drag_x, 0,
3680              MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width) - column->button->allocation.width);
3681   gdk_window_move (tree_view->priv->drag_window, x, y);
3682
3683   /* autoscroll, if needed */
3684   gtk_tree_view_horizontal_autoscroll (tree_view);
3685   /* Update the current reorder position and arrow; */
3686   gtk_tree_view_update_current_reorder (tree_view);
3687
3688   return TRUE;
3689 }
3690
3691 static void
3692 gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
3693 {
3694   remove_scroll_timeout (tree_view);
3695   gtk_grab_remove (GTK_WIDGET (tree_view));
3696
3697   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
3698     {
3699       GtkTreePath *tmp_path;
3700
3701       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
3702
3703       /* The anchor path should be set to the start path */
3704       tmp_path = _gtk_tree_view_find_path (tree_view,
3705                                            tree_view->priv->rubber_band_start_tree,
3706                                            tree_view->priv->rubber_band_start_node);
3707
3708       if (tree_view->priv->anchor)
3709         gtk_tree_row_reference_free (tree_view->priv->anchor);
3710
3711       tree_view->priv->anchor =
3712         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
3713                                           tree_view->priv->model,
3714                                           tmp_path);
3715
3716       gtk_tree_path_free (tmp_path);
3717
3718       /* ... and the cursor to the end path */
3719       tmp_path = _gtk_tree_view_find_path (tree_view,
3720                                            tree_view->priv->rubber_band_end_tree,
3721                                            tree_view->priv->rubber_band_end_node);
3722       gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
3723       gtk_tree_path_free (tmp_path);
3724
3725       _gtk_tree_selection_emit_changed (tree_view->priv->selection);
3726     }
3727
3728   /* Clear status variables */
3729   tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
3730   tree_view->priv->rubber_band_shift = 0;
3731   tree_view->priv->rubber_band_ctrl = 0;
3732
3733   tree_view->priv->rubber_band_start_node = NULL;
3734   tree_view->priv->rubber_band_start_tree = NULL;
3735   tree_view->priv->rubber_band_end_node = NULL;
3736   tree_view->priv->rubber_band_end_tree = NULL;
3737 }
3738
3739 static void
3740 gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
3741                                                  GtkRBTree   *start_tree,
3742                                                  GtkRBNode   *start_node,
3743                                                  GtkRBTree   *end_tree,
3744                                                  GtkRBNode   *end_node,
3745                                                  gboolean     select,
3746                                                  gboolean     skip_start,
3747                                                  gboolean     skip_end)
3748 {
3749   if (start_node == end_node)
3750     return;
3751
3752   /* We skip the first node and jump inside the loop */
3753   if (skip_start)
3754     goto skip_first;
3755
3756   do
3757     {
3758       /* Small optimization by assuming insensitive nodes are never
3759        * selected.
3760        */
3761       if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3762         {
3763           GtkTreePath *path;
3764           gboolean selectable;
3765
3766           path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
3767           selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
3768           gtk_tree_path_free (path);
3769
3770           if (!selectable)
3771             goto node_not_selectable;
3772         }
3773
3774       if (select)
3775         {
3776           if (tree_view->priv->rubber_band_shift)
3777             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3778           else if (tree_view->priv->rubber_band_ctrl)
3779             {
3780               /* Toggle the selection state */
3781               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3782                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3783               else
3784                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3785             }
3786           else
3787             GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3788         }
3789       else
3790         {
3791           /* Mirror the above */
3792           if (tree_view->priv->rubber_band_shift)
3793             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3794           else if (tree_view->priv->rubber_band_ctrl)
3795             {
3796               /* Toggle the selection state */
3797               if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
3798                 GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3799               else
3800                 GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3801             }
3802           else
3803             GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
3804         }
3805
3806       _gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
3807
3808 node_not_selectable:
3809       if (start_node == end_node)
3810         break;
3811
3812 skip_first:
3813
3814       if (start_node->children)
3815         {
3816           start_tree = start_node->children;
3817           start_node = start_tree->root;
3818           while (start_node->left != start_tree->nil)
3819             start_node = start_node->left;
3820         }
3821       else
3822         {
3823           _gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
3824
3825           if (!start_tree)
3826             /* Ran out of tree */
3827             break;
3828         }
3829
3830       if (skip_end && start_node == end_node)
3831         break;
3832     }
3833   while (TRUE);
3834 }
3835
3836 static void
3837 gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
3838 {
3839   GtkRBTree *start_tree, *end_tree;
3840   GtkRBNode *start_node, *end_node;
3841
3842   _gtk_rbtree_find_offset (tree_view->priv->tree, MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &start_tree, &start_node);
3843   _gtk_rbtree_find_offset (tree_view->priv->tree, MAX (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &end_tree, &end_node);
3844
3845   /* Handle the start area first */
3846   if (!tree_view->priv->rubber_band_start_node)
3847     {
3848       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3849                                                        start_tree,
3850                                                        start_node,
3851                                                        end_tree,
3852                                                        end_node,
3853                                                        TRUE,
3854                                                        FALSE,
3855                                                        FALSE);
3856     }
3857   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
3858            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3859     {
3860       /* New node is above the old one; selection became bigger */
3861       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3862                                                        start_tree,
3863                                                        start_node,
3864                                                        tree_view->priv->rubber_band_start_tree,
3865                                                        tree_view->priv->rubber_band_start_node,
3866                                                        TRUE,
3867                                                        FALSE,
3868                                                        TRUE);
3869     }
3870   else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
3871            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
3872     {
3873       /* New node is below the old one; selection became smaller */
3874       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3875                                                        tree_view->priv->rubber_band_start_tree,
3876                                                        tree_view->priv->rubber_band_start_node,
3877                                                        start_tree,
3878                                                        start_node,
3879                                                        FALSE,
3880                                                        FALSE,
3881                                                        TRUE);
3882     }
3883
3884   tree_view->priv->rubber_band_start_tree = start_tree;
3885   tree_view->priv->rubber_band_start_node = start_node;
3886
3887   /* Next, handle the end area */
3888   if (!tree_view->priv->rubber_band_end_node)
3889     {
3890       /* In the event this happens, start_node was also NULL; this case is
3891        * handled above.
3892        */
3893     }
3894   else if (!end_node)
3895     {
3896       /* Find the last node in the tree */
3897       _gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
3898                                &end_tree, &end_node);
3899
3900       /* Selection reached end of the tree */
3901       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3902                                                        tree_view->priv->rubber_band_end_tree,
3903                                                        tree_view->priv->rubber_band_end_node,
3904                                                        end_tree,
3905                                                        end_node,
3906                                                        TRUE,
3907                                                        TRUE,
3908                                                        FALSE);
3909     }
3910   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
3911            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3912     {
3913       /* New node is below the old one; selection became bigger */
3914       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3915                                                        tree_view->priv->rubber_band_end_tree,
3916                                                        tree_view->priv->rubber_band_end_node,
3917                                                        end_tree,
3918                                                        end_node,
3919                                                        TRUE,
3920                                                        TRUE,
3921                                                        FALSE);
3922     }
3923   else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
3924            _gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
3925     {
3926       /* New node is above the old one; selection became smaller */
3927       gtk_tree_view_update_rubber_band_selection_range (tree_view,
3928                                                        end_tree,
3929                                                        end_node,
3930                                                        tree_view->priv->rubber_band_end_tree,
3931                                                        tree_view->priv->rubber_band_end_node,
3932                                                        FALSE,
3933                                                        TRUE,
3934                                                        FALSE);
3935     }
3936
3937   tree_view->priv->rubber_band_end_tree = end_tree;
3938   tree_view->priv->rubber_band_end_node = end_node;
3939 }
3940
3941 static void
3942 gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
3943 {
3944   gint x, y;
3945   GdkRectangle old_area;
3946   GdkRectangle new_area;
3947   GdkRectangle common;
3948   GdkRegion *invalid_region;
3949
3950   old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
3951   old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
3952   old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
3953   old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
3954
3955   gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
3956
3957   x = MAX (x, 0);
3958   y = MAX (y, 0) + tree_view->priv->dy;
3959
3960   new_area.x = MIN (tree_view->priv->press_start_x, x);
3961   new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
3962   new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
3963   new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
3964
3965   invalid_region = gdk_region_rectangle (&old_area);
3966   gdk_region_union_with_rect (invalid_region, &new_area);
3967
3968   gdk_rectangle_intersect (&old_area, &new_area, &common);
3969   if (common.width > 2 && common.height > 2)
3970     {
3971       GdkRegion *common_region;
3972
3973       /* make sure the border is invalidated */
3974       common.x += 1;
3975       common.y += 1;
3976       common.width -= 2;
3977       common.height -= 2;
3978
3979       common_region = gdk_region_rectangle (&common);
3980
3981       gdk_region_subtract (invalid_region, common_region);
3982       gdk_region_destroy (common_region);
3983     }
3984
3985   gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
3986
3987   gdk_region_destroy (invalid_region);
3988
3989   tree_view->priv->rubber_band_x = x;
3990   tree_view->priv->rubber_band_y = y;
3991
3992   gtk_tree_view_update_rubber_band_selection (tree_view);
3993 }
3994
3995 static void
3996 gtk_tree_view_paint_rubber_band (GtkTreeView  *tree_view,
3997                                 GdkRectangle *area)
3998 {
3999   cairo_t *cr;
4000   GdkRectangle rect;
4001   GdkRectangle rubber_rect;
4002
4003   rubber_rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
4004   rubber_rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
4005   rubber_rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
4006   rubber_rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
4007
4008   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
4009     return;
4010
4011   cr = gdk_cairo_create (tree_view->priv->bin_window);
4012   cairo_set_line_width (cr, 1.0);
4013
4014   cairo_set_source_rgba (cr,
4015                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4016                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4017                          GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.,
4018                          .25);
4019
4020   gdk_cairo_rectangle (cr, &rect);
4021   cairo_clip (cr);
4022   cairo_paint (cr);
4023
4024   cairo_set_source_rgb (cr,
4025                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].red / 65535.,
4026                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].green / 65535.,
4027                         GTK_WIDGET (tree_view)->style->fg[GTK_STATE_NORMAL].blue / 65535.);
4028
4029   cairo_rectangle (cr,
4030                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
4031                    rubber_rect.width - 1, rubber_rect.height - 1);
4032   cairo_stroke (cr);
4033
4034   cairo_destroy (cr);
4035 }
4036
4037 static gboolean
4038 gtk_tree_view_motion_bin_window (GtkWidget      *widget,
4039                                  GdkEventMotion *event)
4040 {
4041   GtkTreeView *tree_view;
4042   GtkRBTree *tree;
4043   GtkRBNode *node;
4044   gint new_y;
4045
4046   tree_view = (GtkTreeView *) widget;
4047
4048   if (tree_view->priv->tree == NULL)
4049     return FALSE;
4050
4051   if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
4052     {
4053       gtk_grab_add (GTK_WIDGET (tree_view));
4054       gtk_tree_view_update_rubber_band (tree_view);
4055
4056       tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
4057     }
4058   else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4059     {
4060       gtk_tree_view_update_rubber_band (tree_view);
4061
4062       add_scroll_timeout (tree_view);
4063     }
4064
4065   /* only check for an initiated drag when a button is pressed */
4066   if (tree_view->priv->pressed_button >= 0
4067       && !tree_view->priv->rubber_band_status)
4068     gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
4069
4070   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
4071   if (new_y < 0)
4072     new_y = 0;
4073
4074   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4075
4076   /* If we are currently pressing down a button, we don't want to prelight anything else. */
4077   if ((tree_view->priv->button_pressed_node != NULL) &&
4078       (tree_view->priv->button_pressed_node != node))
4079     node = NULL;
4080
4081   prelight_or_select (tree_view, tree, node, event->x, event->y);
4082
4083   return TRUE;
4084 }
4085
4086 static gboolean
4087 gtk_tree_view_motion (GtkWidget      *widget,
4088                       GdkEventMotion *event)
4089 {
4090   GtkTreeView *tree_view;
4091
4092   tree_view = (GtkTreeView *) widget;
4093
4094   /* Resizing a column */
4095   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
4096     return gtk_tree_view_motion_resize_column (widget, event);
4097
4098   /* Drag column */
4099   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
4100     return gtk_tree_view_motion_drag_column (widget, event);
4101
4102   /* Sanity check it */
4103   if (event->window == tree_view->priv->bin_window)
4104     return gtk_tree_view_motion_bin_window (widget, event);
4105
4106   return FALSE;
4107 }
4108
4109 /* Invalidate the focus rectangle near the edge of the bin_window; used when
4110  * the tree is empty.
4111  */
4112 static void
4113 invalidate_empty_focus (GtkTreeView *tree_view)
4114 {
4115   GdkRectangle area;
4116
4117   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4118     return;
4119
4120   area.x = 0;
4121   area.y = 0;
4122   gdk_drawable_get_size (tree_view->priv->bin_window, &area.width, &area.height);
4123   gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
4124 }
4125
4126 /* Draws a focus rectangle near the edge of the bin_window; used when the tree
4127  * is empty.
4128  */
4129 static void
4130 draw_empty_focus (GtkTreeView *tree_view, GdkRectangle *clip_area)
4131 {
4132   gint w, h;
4133
4134   if (!GTK_WIDGET_HAS_FOCUS (tree_view))
4135     return;
4136
4137   gdk_drawable_get_size (tree_view->priv->bin_window, &w, &h);
4138
4139   w -= 2;
4140   h -= 2;
4141
4142   if (w > 0 && h > 0)
4143     gtk_paint_focus (GTK_WIDGET (tree_view)->style,
4144                      tree_view->priv->bin_window,
4145                      GTK_WIDGET_STATE (tree_view),
4146                      clip_area,
4147                      GTK_WIDGET (tree_view),
4148                      NULL,
4149                      1, 1, w, h);
4150 }
4151
4152 static void
4153 gtk_tree_view_draw_grid_lines (GtkTreeView    *tree_view,
4154                                GdkEventExpose *event,
4155                                gint            n_visible_columns)
4156 {
4157   GList *list = tree_view->priv->columns;
4158   gint i = 0;
4159   gint current_x = 0;
4160
4161   if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
4162       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
4163     return;
4164
4165   /* Only draw the lines for visible rows and columns */
4166   for (list = tree_view->priv->columns; list; list = list->next, i++)
4167     {
4168       GtkTreeViewColumn *column = list->data;
4169
4170       /* We don't want a line for the last column */
4171       if (i == n_visible_columns - 1)
4172         break;
4173
4174       if (! column->visible)
4175         continue;
4176
4177       current_x += column->width;
4178
4179       gdk_draw_line (event->window,
4180                      tree_view->priv->grid_line_gc,
4181                      current_x - 1, 0,
4182                      current_x - 1, tree_view->priv->height);
4183     }
4184 }
4185
4186 /* Warning: Very scary function.
4187  * Modify at your own risk
4188  *
4189  * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
4190  * FIXME: It's not...
4191  */
4192 static gboolean
4193 gtk_tree_view_bin_expose (GtkWidget      *widget,
4194                           GdkEventExpose *event)
4195 {
4196   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4197   GtkTreePath *path;
4198   GtkRBTree *tree;
4199   GList *list;
4200   GtkRBNode *node;
4201   GtkRBNode *cursor = NULL;
4202   GtkRBTree *cursor_tree = NULL;
4203   GtkRBNode *drag_highlight = NULL;
4204   GtkRBTree *drag_highlight_tree = NULL;
4205   GtkTreeIter iter;
4206   gint new_y;
4207   gint y_offset, cell_offset;
4208   gint max_height;
4209   gint depth;
4210   GdkRectangle background_area;
4211   GdkRectangle cell_area;
4212   guint flags;
4213   gint highlight_x;
4214   gint expander_cell_width;
4215   gint bin_window_width;
4216   gint bin_window_height;
4217   GtkTreePath *cursor_path;
4218   GtkTreePath *drag_dest_path;
4219   GList *first_column, *last_column;
4220   gint vertical_separator;
4221   gint horizontal_separator;
4222   gint focus_line_width;
4223   gboolean allow_rules;
4224   gboolean has_special_cell;
4225   gboolean rtl;
4226   gint n_visible_columns;
4227   gint pointer_x, pointer_y;
4228   gint grid_line_width;
4229   gboolean got_pointer = FALSE;
4230   gboolean row_ending_details;
4231   gboolean draw_vgrid_lines, draw_hgrid_lines;
4232
4233   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4234
4235   gtk_widget_style_get (widget,
4236                         "horizontal-separator", &horizontal_separator,
4237                         "vertical-separator", &vertical_separator,
4238                         "allow-rules", &allow_rules,
4239                         "focus-line-width", &focus_line_width,
4240                         "row-ending-details", &row_ending_details,
4241                         NULL);
4242
4243   if (tree_view->priv->tree == NULL)
4244     {
4245       draw_empty_focus (tree_view, &event->area);
4246       return TRUE;
4247     }
4248
4249   /* clip event->area to the visible area */
4250   if (event->area.height < 0)
4251     return TRUE;
4252
4253   validate_visible_area (tree_view);
4254
4255   new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, event->area.y);
4256
4257   if (new_y < 0)
4258     new_y = 0;
4259   y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
4260   gdk_drawable_get_size (tree_view->priv->bin_window,
4261                          &bin_window_width, &bin_window_height);
4262
4263   if (tree_view->priv->height < bin_window_height)
4264     {
4265       gtk_paint_flat_box (widget->style,
4266                           event->window,
4267                           widget->state,
4268                           GTK_SHADOW_NONE,
4269                           &event->area,
4270                           widget,
4271                           "cell_even",
4272                           0, tree_view->priv->height,
4273                           bin_window_width,
4274                           bin_window_height - tree_view->priv->height);
4275     }
4276
4277   if (node == NULL)
4278     return TRUE;
4279
4280   /* find the path for the node */
4281   path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
4282                                    tree,
4283                                    node);
4284   gtk_tree_model_get_iter (tree_view->priv->model,
4285                            &iter,
4286                            path);
4287   depth = gtk_tree_path_get_depth (path);
4288   gtk_tree_path_free (path);
4289
4290   cursor_path = NULL;
4291   drag_dest_path = NULL;
4292
4293   if (tree_view->priv->cursor)
4294     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
4295
4296   if (cursor_path)
4297     _gtk_tree_view_find_node (tree_view, cursor_path,
4298                               &cursor_tree, &cursor);
4299
4300   if (tree_view->priv->drag_dest_row)
4301     drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
4302
4303   if (drag_dest_path)
4304     _gtk_tree_view_find_node (tree_view, drag_dest_path,
4305                               &drag_highlight_tree, &drag_highlight);
4306
4307   draw_vgrid_lines =
4308     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
4309     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4310   draw_hgrid_lines =
4311     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
4312     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
4313
4314   if (draw_vgrid_lines || draw_hgrid_lines)
4315     gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
4316
4317   n_visible_columns = 0;
4318   for (list = tree_view->priv->columns; list; list = list->next)
4319     {
4320       if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
4321         continue;
4322       n_visible_columns ++;
4323     }
4324
4325   /* Find the last column */
4326   for (last_column = g_list_last (tree_view->priv->columns);
4327        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
4328        last_column = last_column->prev)
4329     ;
4330
4331   /* and the first */
4332   for (first_column = g_list_first (tree_view->priv->columns);
4333        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
4334        first_column = first_column->next)
4335     ;
4336
4337   /* Actually process the expose event.  To do this, we want to
4338    * start at the first node of the event, and walk the tree in
4339    * order, drawing each successive node.
4340    */
4341
4342   do
4343     {
4344       gboolean parity;
4345       gboolean is_separator = FALSE;
4346       gboolean is_first = FALSE;
4347       gboolean is_last = FALSE;
4348
4349       is_separator = row_is_separator (tree_view, &iter, NULL);
4350
4351       max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4352
4353       cell_offset = 0;
4354       highlight_x = 0; /* should match x coord of first cell */
4355       expander_cell_width = 0;
4356
4357       background_area.y = y_offset + event->area.y;
4358       background_area.height = max_height;
4359
4360       flags = 0;
4361
4362       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
4363         flags |= GTK_CELL_RENDERER_PRELIT;
4364
4365       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
4366         flags |= GTK_CELL_RENDERER_SELECTED;
4367
4368       parity = _gtk_rbtree_node_find_parity (tree, node);
4369
4370       /* we *need* to set cell data on all cells before the call
4371        * to _has_special_cell, else _has_special_cell() does not
4372        * return a correct value.
4373        */
4374       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4375            list;
4376            list = (rtl ? list->prev : list->next))
4377         {
4378           GtkTreeViewColumn *column = list->data;
4379           gtk_tree_view_column_cell_set_cell_data (column,
4380                                                    tree_view->priv->model,
4381                                                    &iter,
4382                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4383                                                    node->children?TRUE:FALSE);
4384         }
4385
4386       has_special_cell = gtk_tree_view_has_special_cell (tree_view);
4387
4388       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
4389            list;
4390            list = (rtl ? list->prev : list->next))
4391         {
4392           GtkTreeViewColumn *column = list->data;
4393           const gchar *detail = NULL;
4394           GtkStateType state;
4395
4396           if (!column->visible)
4397             continue;
4398
4399           if (cell_offset > event->area.x + event->area.width ||
4400               cell_offset + column->width < event->area.x)
4401             {
4402               cell_offset += column->width;
4403               continue;
4404             }
4405
4406           if (column->show_sort_indicator)
4407             flags |= GTK_CELL_RENDERER_SORTED;
4408           else
4409             flags &= ~GTK_CELL_RENDERER_SORTED;
4410
4411           if (cursor == node)
4412             flags |= GTK_CELL_RENDERER_FOCUSED;
4413           else
4414             flags &= ~GTK_CELL_RENDERER_FOCUSED;
4415
4416           background_area.x = cell_offset;
4417           background_area.width = column->width;
4418
4419           cell_area = background_area;
4420           cell_area.y += vertical_separator / 2;
4421           cell_area.x += horizontal_separator / 2;
4422           cell_area.height -= vertical_separator;
4423           cell_area.width -= horizontal_separator;
4424
4425           if (draw_vgrid_lines)
4426             {
4427               if (list == first_column)
4428                 {
4429                   cell_area.width -= grid_line_width / 2;
4430                 }
4431               else if (list == last_column)
4432                 {
4433                   cell_area.x += grid_line_width / 2;
4434                   cell_area.width -= grid_line_width / 2;
4435                 }
4436               else
4437                 {
4438                   cell_area.x += grid_line_width / 2;
4439                   cell_area.width -= grid_line_width;
4440                 }
4441             }
4442
4443           if (draw_hgrid_lines)
4444             {
4445               cell_area.y += grid_line_width / 2;
4446               cell_area.height -= grid_line_width;
4447             }
4448
4449           if (gdk_region_rect_in (event->region, &background_area) == GDK_OVERLAP_RECTANGLE_OUT)
4450             {
4451               cell_offset += column->width;
4452               continue;
4453             }
4454
4455           gtk_tree_view_column_cell_set_cell_data (column,
4456                                                    tree_view->priv->model,
4457                                                    &iter,
4458                                                    GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
4459                                                    node->children?TRUE:FALSE);
4460
4461           /* Select the detail for drawing the cell.  relevant
4462            * factors are parity, sortedness, and whether to
4463            * display rules.
4464            */
4465           if (allow_rules && tree_view->priv->has_rules)
4466             {
4467               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4468                   n_visible_columns >= 3)
4469                 {
4470                   if (parity)
4471                     detail = "cell_odd_ruled_sorted";
4472                   else
4473                     detail = "cell_even_ruled_sorted";
4474                 }
4475               else
4476                 {
4477                   if (parity)
4478                     detail = "cell_odd_ruled";
4479                   else
4480                     detail = "cell_even_ruled";
4481                 }
4482             }
4483           else
4484             {
4485               if ((flags & GTK_CELL_RENDERER_SORTED) &&
4486                   n_visible_columns >= 3)
4487                 {
4488                   if (parity)
4489                     detail = "cell_odd_sorted";
4490                   else
4491                     detail = "cell_even_sorted";
4492                 }
4493               else
4494                 {
4495                   if (parity)
4496                     detail = "cell_odd";
4497                   else
4498                     detail = "cell_even";
4499                 }
4500             }
4501
4502           g_assert (detail);
4503
4504           if (widget->state == GTK_STATE_INSENSITIVE)
4505             state = GTK_STATE_INSENSITIVE;
4506           else if (flags & GTK_CELL_RENDERER_SELECTED)
4507             state = GTK_STATE_SELECTED;
4508           else
4509             state = GTK_STATE_NORMAL;
4510
4511           /* Draw background */
4512           if (row_ending_details)
4513             {
4514               char new_detail[128];
4515
4516               is_first = (rtl ? !list->next : !list->prev);
4517               is_last = (rtl ? !list->prev : !list->next);
4518
4519               /* (I don't like the snprintfs either, but couldn't find a
4520                * less messy way).
4521                */
4522               if (is_first && is_last)
4523                 g_snprintf (new_detail, 127, "%s", detail);
4524               else if (is_first)
4525                 g_snprintf (new_detail, 127, "%s_start", detail);
4526               else if (is_last)
4527                 g_snprintf (new_detail, 127, "%s_end", detail);
4528               else
4529                 g_snprintf (new_detail, 128, "%s_middle", detail);
4530
4531               gtk_paint_flat_box (widget->style,
4532                                   event->window,
4533                                   state,
4534                                   GTK_SHADOW_NONE,
4535                                   &event->area,
4536                                   widget,
4537                                   new_detail,
4538                                   background_area.x,
4539                                   background_area.y,
4540                                   background_area.width,
4541                                   background_area.height);
4542             }
4543           else
4544             {
4545               gtk_paint_flat_box (widget->style,
4546                                   event->window,
4547                                   state,
4548                                   GTK_SHADOW_NONE,
4549                                   &event->area,
4550                                   widget,
4551                                   detail,
4552                                   background_area.x,
4553                                   background_area.y,
4554                                   background_area.width,
4555                                   background_area.height);
4556             }
4557
4558           if (draw_hgrid_lines)
4559             {
4560               if (background_area.y > 0)
4561                 gdk_draw_line (event->window,
4562                                tree_view->priv->grid_line_gc,
4563                                background_area.x, background_area.y,
4564                                background_area.x + background_area.width,
4565                                background_area.y);
4566
4567               if (y_offset + max_height >= event->area.height)
4568                 gdk_draw_line (event->window,
4569                                tree_view->priv->grid_line_gc,
4570                                background_area.x, background_area.y + max_height,
4571                                background_area.x + background_area.width,
4572                                background_area.y + max_height);
4573             }
4574
4575           if (gtk_tree_view_is_expander_column (tree_view, column))
4576             {
4577               if (!rtl)
4578                 cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
4579               cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
4580
4581               if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
4582                 {
4583                   if (!rtl)
4584                     cell_area.x += depth * tree_view->priv->expander_size;
4585                   cell_area.width -= depth * tree_view->priv->expander_size;
4586                 }
4587
4588               /* If we have an expander column, the highlight underline
4589                * starts with that column, so that it indicates which
4590                * level of the tree we're dropping at.
4591                */
4592               highlight_x = cell_area.x;
4593               expander_cell_width = cell_area.width;
4594
4595               if (is_separator)
4596                 gtk_paint_hline (widget->style,
4597                                  event->window,
4598                                  state,
4599                                  &cell_area,
4600                                  widget,
4601                                  NULL,
4602                                  cell_area.x,
4603                                  cell_area.x + cell_area.width,
4604                                  cell_area.y + cell_area.height / 2);
4605               else
4606                 _gtk_tree_view_column_cell_render (column,
4607                                                    event->window,
4608                                                    &background_area,
4609                                                    &cell_area,
4610                                                    &event->area,
4611                                                    flags);
4612               if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
4613                   && (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
4614                 {
4615                   if (!got_pointer)
4616                     {
4617                       gdk_window_get_pointer (tree_view->priv->bin_window,
4618                                               &pointer_x, &pointer_y, NULL);
4619                       got_pointer = TRUE;
4620                     }
4621
4622                   gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
4623                                             tree,
4624                                             node,
4625                                             pointer_x, pointer_y);
4626                 }
4627             }
4628           else
4629             {
4630               if (is_separator)
4631                 gtk_paint_hline (widget->style,
4632                                  event->window,
4633                                  state,
4634                                  &cell_area,
4635                                  widget,
4636                                  NULL,
4637                                  cell_area.x,
4638                                  cell_area.x + cell_area.width,
4639                                  cell_area.y + cell_area.height / 2);
4640               else
4641                 _gtk_tree_view_column_cell_render (column,
4642                                                    event->window,
4643                                                    &background_area,
4644                                                    &cell_area,
4645                                                    &event->area,
4646                                                    flags);
4647             }
4648
4649           if (gtk_tree_view_is_expander_column (tree_view, column) &&
4650               tree_view->priv->tree_lines_enabled)
4651             {
4652               gint x = background_area.x;
4653               gint mult = rtl ? -1 : 1;
4654               gint y0 = background_area.y;
4655               gint y1 = background_area.y + background_area.height/2;
4656               gint y2 = background_area.y + background_area.height;
4657
4658               if (rtl)
4659                 x += background_area.width - 1;
4660
4661               if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
4662                   && depth > 1)
4663                 {
4664                   gdk_draw_line (event->window,
4665                                  tree_view->priv->tree_line_gc,
4666                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4667                                  y1,
4668                                  x + tree_view->priv->expander_size * (depth - 1.1) * mult,
4669                                  y1);
4670                 }
4671               else if (depth > 1)
4672                 {
4673                   gdk_draw_line (event->window,
4674                                  tree_view->priv->tree_line_gc,
4675                                  x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4676                                  y1,
4677                                  x + tree_view->priv->expander_size * (depth - 0.5) * mult,
4678                                  y1);
4679                 }
4680
4681               if (depth > 1)
4682                 {
4683                   gint i;
4684                   GtkRBNode *tmp_node;
4685                   GtkRBTree *tmp_tree;
4686
4687                   if (!_gtk_rbtree_next (tree, node))
4688                     gdk_draw_line (event->window,
4689                                    tree_view->priv->tree_line_gc,
4690                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4691                                    y0,
4692                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4693                                    y1);
4694                   else
4695                     gdk_draw_line (event->window,
4696                                    tree_view->priv->tree_line_gc,
4697                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4698                                    y0,
4699                                    x + tree_view->priv->expander_size * (depth - 1.5) * mult,
4700                                    y2);
4701
4702                   tmp_node = tree->parent_node;
4703                   tmp_tree = tree->parent_tree;
4704
4705                   for (i = depth - 2; i > 0; i--)
4706                     {
4707                       if (_gtk_rbtree_next (tmp_tree, tmp_node))
4708                         gdk_draw_line (event->window,
4709                                        tree_view->priv->tree_line_gc,
4710                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4711                                        y0,
4712                                        x + tree_view->priv->expander_size * (i - 0.5) * mult,
4713                                        y2);
4714
4715                       tmp_node = tmp_tree->parent_node;
4716                       tmp_tree = tmp_tree->parent_tree;
4717                     }
4718                 }
4719             }
4720
4721           if (node == cursor && has_special_cell &&
4722               ((column == tree_view->priv->focus_column &&
4723                 GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4724                 GTK_WIDGET_HAS_FOCUS (widget)) ||
4725                (column == tree_view->priv->edited_column)))
4726             {
4727               _gtk_tree_view_column_cell_draw_focus (column,
4728                                                      event->window,
4729                                                      &background_area,
4730                                                      &cell_area,
4731                                                      &event->area,
4732                                                      flags);
4733             }
4734
4735           cell_offset += column->width;
4736         }
4737
4738       if (node == drag_highlight)
4739         {
4740           /* Draw indicator for the drop
4741            */
4742           gint highlight_y = -1;
4743           GtkRBTree *tree = NULL;
4744           GtkRBNode *node = NULL;
4745           gint width;
4746
4747           switch (tree_view->priv->drag_dest_pos)
4748             {
4749             case GTK_TREE_VIEW_DROP_BEFORE:
4750               highlight_y = background_area.y - 1;
4751               if (highlight_y < 0)
4752                       highlight_y = 0;
4753               break;
4754
4755             case GTK_TREE_VIEW_DROP_AFTER:
4756               highlight_y = background_area.y + background_area.height - 1;
4757               break;
4758
4759             case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
4760             case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
4761               _gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
4762
4763               if (tree == NULL)
4764                 break;
4765               gdk_drawable_get_size (tree_view->priv->bin_window,
4766                                      &width, NULL);
4767
4768               if (row_ending_details)
4769                 gtk_paint_focus (widget->style,
4770                                  tree_view->priv->bin_window,
4771                                  GTK_WIDGET_STATE (widget),
4772                                  &event->area,
4773                                  widget,
4774                                  (is_first
4775                                   ? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
4776                                   : (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
4777                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4778                                  - focus_line_width / 2,
4779                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4780                                - focus_line_width + 1);
4781               else
4782                 gtk_paint_focus (widget->style,
4783                                  tree_view->priv->bin_window,
4784                                  GTK_WIDGET_STATE (widget),
4785                                  &event->area,
4786                                  widget,
4787                                  "treeview-drop-indicator",
4788                                  0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
4789                                  - focus_line_width / 2,
4790                                  width, ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
4791                                  - focus_line_width + 1);
4792               break;
4793             }
4794
4795           if (highlight_y >= 0)
4796             {
4797               gdk_draw_line (event->window,
4798                              widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
4799                              rtl ? highlight_x + expander_cell_width : highlight_x,
4800                              highlight_y,
4801                              rtl ? 0 : bin_window_width,
4802                              highlight_y);
4803             }
4804         }
4805
4806       /* draw the big row-spanning focus rectangle, if needed */
4807       if (!has_special_cell && node == cursor &&
4808           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
4809           GTK_WIDGET_HAS_FOCUS (widget))
4810         {
4811           gint tmp_y, tmp_height;
4812           gint width;
4813           GtkStateType focus_rect_state;
4814
4815           focus_rect_state =
4816             flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
4817             (flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
4818              (flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
4819               GTK_STATE_NORMAL));
4820
4821           gdk_drawable_get_size (tree_view->priv->bin_window,
4822                                  &width, NULL);
4823
4824           if (draw_hgrid_lines)
4825             {
4826               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
4827               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
4828             }
4829           else
4830             {
4831               tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
4832               tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
4833             }
4834
4835           if (row_ending_details)
4836             gtk_paint_focus (widget->style,
4837                              tree_view->priv->bin_window,
4838                              focus_rect_state,
4839                              &event->area,
4840                              widget,
4841                              (is_first
4842                               ? (is_last ? "treeview" : "treeview-left" )
4843                               : (is_last ? "treeview-right" : "treeview-middle" )),
4844                              0, tmp_y,
4845                              width, tmp_height);
4846           else
4847             gtk_paint_focus (widget->style,
4848                              tree_view->priv->bin_window,
4849                              focus_rect_state,
4850                              &event->area,
4851                              widget,
4852                              "treeview",
4853                              0, tmp_y,
4854                              width, tmp_height);
4855         }
4856
4857       y_offset += max_height;
4858       if (node->children)
4859         {
4860           GtkTreeIter parent = iter;
4861           gboolean has_child;
4862
4863           tree = node->children;
4864           node = tree->root;
4865
4866           g_assert (node != tree->nil);
4867
4868           while (node->left != tree->nil)
4869             node = node->left;
4870           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
4871                                                     &iter,
4872                                                     &parent);
4873           depth++;
4874
4875           /* Sanity Check! */
4876           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
4877         }
4878       else
4879         {
4880           gboolean done = FALSE;
4881
4882           do
4883             {
4884               node = _gtk_rbtree_next (tree, node);
4885               if (node != NULL)
4886                 {
4887                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
4888                   done = TRUE;
4889
4890                   /* Sanity Check! */
4891                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
4892                 }
4893               else
4894                 {
4895                   GtkTreeIter parent_iter = iter;
4896                   gboolean has_parent;
4897
4898                   node = tree->parent_node;
4899                   tree = tree->parent_tree;
4900                   if (tree == NULL)
4901                     /* we should go to done to free some memory */
4902                     goto done;
4903                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
4904                                                            &iter,
4905                                                            &parent_iter);
4906                   depth--;
4907
4908                   /* Sanity check */
4909                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
4910                 }
4911             }
4912           while (!done);
4913         }
4914     }
4915   while (y_offset < event->area.height);
4916
4917 done:
4918   gtk_tree_view_draw_grid_lines (tree_view, event, n_visible_columns);
4919
4920  if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
4921    {
4922      GdkRectangle *rectangles;
4923      gint n_rectangles;
4924
4925      gdk_region_get_rectangles (event->region,
4926                                 &rectangles,
4927                                 &n_rectangles);
4928
4929      while (n_rectangles--)
4930        gtk_tree_view_paint_rubber_band (tree_view, &rectangles[n_rectangles]);
4931
4932      g_free (rectangles);
4933    }
4934
4935   if (cursor_path)
4936     gtk_tree_path_free (cursor_path);
4937
4938   if (drag_dest_path)
4939     gtk_tree_path_free (drag_dest_path);
4940
4941   return FALSE;
4942 }
4943
4944 static gboolean
4945 gtk_tree_view_expose (GtkWidget      *widget,
4946                       GdkEventExpose *event)
4947 {
4948   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
4949
4950   if (event->window == tree_view->priv->bin_window)
4951     {
4952       gboolean retval;
4953       GList *tmp_list;
4954
4955       retval = gtk_tree_view_bin_expose (widget, event);
4956
4957       /* We can't just chain up to Container::expose as it will try to send the
4958        * event to the headers, so we handle propagating it to our children
4959        * (eg. widgets being edited) ourselves.
4960        */
4961       tmp_list = tree_view->priv->children;
4962       while (tmp_list)
4963         {
4964           GtkTreeViewChild *child = tmp_list->data;
4965           tmp_list = tmp_list->next;
4966
4967           gtk_container_propagate_expose (GTK_CONTAINER (tree_view), child->widget, event);
4968         }
4969
4970       return retval;
4971     }
4972
4973   else if (event->window == tree_view->priv->header_window)
4974     {
4975       GList *list;
4976
4977       for (list = tree_view->priv->columns; list != NULL; list = list->next)
4978         {
4979           GtkTreeViewColumn *column = list->data;
4980
4981           if (column == tree_view->priv->drag_column)
4982             continue;
4983
4984           if (column->visible)
4985             gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4986                                             column->button,
4987                                             event);
4988         }
4989     }
4990   else if (event->window == tree_view->priv->drag_window)
4991     {
4992       gtk_container_propagate_expose (GTK_CONTAINER (tree_view),
4993                                       tree_view->priv->drag_column->button,
4994                                       event);
4995     }
4996   return TRUE;
4997 }
4998
4999 enum
5000 {
5001   DROP_HOME,
5002   DROP_RIGHT,
5003   DROP_LEFT,
5004   DROP_END
5005 };
5006
5007 /* returns 0x1 when no column has been found -- yes it's hackish */
5008 static GtkTreeViewColumn *
5009 gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
5010                                GtkTreeViewColumn *column,
5011                                gint               drop_position)
5012 {
5013   GtkTreeViewColumn *left_column = NULL;
5014   GtkTreeViewColumn *cur_column = NULL;
5015   GList *tmp_list;
5016
5017   if (!column->reorderable)
5018     return (GtkTreeViewColumn *)0x1;
5019
5020   switch (drop_position)
5021     {
5022       case DROP_HOME:
5023         /* find first column where we can drop */
5024         tmp_list = tree_view->priv->columns;
5025         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5026           return (GtkTreeViewColumn *)0x1;
5027
5028         while (tmp_list)
5029           {
5030             g_assert (tmp_list);
5031
5032             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5033             tmp_list = tmp_list->next;
5034
5035             if (left_column && left_column->visible == FALSE)
5036               continue;
5037
5038             if (!tree_view->priv->column_drop_func)
5039               return left_column;
5040
5041             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5042               {
5043                 left_column = cur_column;
5044                 continue;
5045               }
5046
5047             return left_column;
5048           }
5049
5050         if (!tree_view->priv->column_drop_func)
5051           return left_column;
5052
5053         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5054           return left_column;
5055         else
5056           return (GtkTreeViewColumn *)0x1;
5057         break;
5058
5059       case DROP_RIGHT:
5060         /* find first column after column where we can drop */
5061         tmp_list = tree_view->priv->columns;
5062
5063         for (; tmp_list; tmp_list = tmp_list->next)
5064           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5065             break;
5066
5067         if (!tmp_list || !tmp_list->next)
5068           return (GtkTreeViewColumn *)0x1;
5069
5070         tmp_list = tmp_list->next;
5071         left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5072         tmp_list = tmp_list->next;
5073
5074         while (tmp_list)
5075           {
5076             g_assert (tmp_list);
5077
5078             cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5079             tmp_list = tmp_list->next;
5080
5081             if (left_column && left_column->visible == FALSE)
5082               {
5083                 left_column = cur_column;
5084                 if (tmp_list)
5085                   tmp_list = tmp_list->next;
5086                 continue;
5087               }
5088
5089             if (!tree_view->priv->column_drop_func)
5090               return left_column;
5091
5092             if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5093               {
5094                 left_column = cur_column;
5095                 continue;
5096               }
5097
5098             return left_column;
5099           }
5100
5101         if (!tree_view->priv->column_drop_func)
5102           return left_column;
5103
5104         if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
5105           return left_column;
5106         else
5107           return (GtkTreeViewColumn *)0x1;
5108         break;
5109
5110       case DROP_LEFT:
5111         /* find first column before column where we can drop */
5112         tmp_list = tree_view->priv->columns;
5113
5114         for (; tmp_list; tmp_list = tmp_list->next)
5115           if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
5116             break;
5117
5118         if (!tmp_list || !tmp_list->prev)
5119           return (GtkTreeViewColumn *)0x1;
5120
5121         tmp_list = tmp_list->prev;
5122         cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5123         tmp_list = tmp_list->prev;
5124
5125         while (tmp_list)
5126           {
5127             g_assert (tmp_list);
5128
5129             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5130
5131             if (left_column && !left_column->visible)
5132               {
5133                 /*if (!tmp_list->prev)
5134                   return (GtkTreeViewColumn *)0x1;
5135                   */
5136 /*
5137                 cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
5138                 tmp_list = tmp_list->prev->prev;
5139                 continue;*/
5140
5141                 cur_column = left_column;
5142                 if (tmp_list)
5143                   tmp_list = tmp_list->prev;
5144                 continue;
5145               }
5146
5147             if (!tree_view->priv->column_drop_func)
5148               return left_column;
5149
5150             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5151               return left_column;
5152
5153             cur_column = left_column;
5154             tmp_list = tmp_list->prev;
5155           }
5156
5157         if (!tree_view->priv->column_drop_func)
5158           return NULL;
5159
5160         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5161           return NULL;
5162         else
5163           return (GtkTreeViewColumn *)0x1;
5164         break;
5165
5166       case DROP_END:
5167         /* same as DROP_HOME case, but doing it backwards */
5168         tmp_list = g_list_last (tree_view->priv->columns);
5169         cur_column = NULL;
5170
5171         if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
5172           return (GtkTreeViewColumn *)0x1;
5173
5174         while (tmp_list)
5175           {
5176             g_assert (tmp_list);
5177
5178             left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
5179
5180             if (left_column && !left_column->visible)
5181               {
5182                 cur_column = left_column;
5183                 tmp_list = tmp_list->prev;
5184               }
5185
5186             if (!tree_view->priv->column_drop_func)
5187               return left_column;
5188
5189             if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
5190               return left_column;
5191
5192             cur_column = left_column;
5193             tmp_list = tmp_list->prev;
5194           }
5195
5196         if (!tree_view->priv->column_drop_func)
5197           return NULL;
5198
5199         if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
5200           return NULL;
5201         else
5202           return (GtkTreeViewColumn *)0x1;
5203         break;
5204     }
5205
5206   return (GtkTreeViewColumn *)0x1;
5207 }
5208
5209 static gboolean
5210 gtk_tree_view_key_press (GtkWidget   *widget,
5211                          GdkEventKey *event)
5212 {
5213   GtkTreeView *tree_view = (GtkTreeView *) widget;
5214
5215   if (tree_view->priv->rubber_band_status)
5216     {
5217       if (event->keyval == GDK_Escape)
5218         gtk_tree_view_stop_rubber_band (tree_view);
5219
5220       return TRUE;
5221     }
5222
5223   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
5224     {
5225       if (event->keyval == GDK_Escape)
5226         {
5227           tree_view->priv->cur_reorder = NULL;
5228           gtk_tree_view_button_release_drag_column (widget, NULL);
5229         }
5230       return TRUE;
5231     }
5232
5233   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
5234     {
5235       GList *focus_column;
5236       gboolean rtl;
5237
5238       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
5239
5240       for (focus_column = tree_view->priv->columns;
5241            focus_column;
5242            focus_column = focus_column->next)
5243         {
5244           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5245
5246           if (GTK_WIDGET_HAS_FOCUS (column->button))
5247             break;
5248         }
5249
5250       if (focus_column &&
5251           (event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
5252           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5253            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right))
5254         {
5255           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5256
5257           if (!column->resizable)
5258             {
5259               gtk_widget_error_bell (widget);
5260               return TRUE;
5261             }
5262
5263           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5264               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5265             {
5266               gint old_width = column->resized_width;
5267
5268               column->resized_width = MAX (column->resized_width,
5269                                            column->width);
5270               column->resized_width -= 2;
5271               if (column->resized_width < 0)
5272                 column->resized_width = 0;
5273
5274               if (column->min_width == -1)
5275                 column->resized_width = MAX (column->button->requisition.width,
5276                                              column->resized_width);
5277               else
5278                 column->resized_width = MAX (column->min_width,
5279                                              column->resized_width);
5280
5281               if (column->max_width != -1)
5282                 column->resized_width = MIN (column->resized_width,
5283                                              column->max_width);
5284
5285               column->use_resized_width = TRUE;
5286
5287               if (column->resized_width != old_width)
5288                 gtk_widget_queue_resize (widget);
5289               else
5290                 gtk_widget_error_bell (widget);
5291             }
5292           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5293                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5294             {
5295               gint old_width = column->resized_width;
5296
5297               column->resized_width = MAX (column->resized_width,
5298                                            column->width);
5299               column->resized_width += 2;
5300
5301               if (column->max_width != -1)
5302                 column->resized_width = MIN (column->resized_width,
5303                                              column->max_width);
5304
5305               column->use_resized_width = TRUE;
5306
5307               if (column->resized_width != old_width)
5308                 gtk_widget_queue_resize (widget);
5309               else
5310                 gtk_widget_error_bell (widget);
5311             }
5312
5313           return TRUE;
5314         }
5315
5316       if (focus_column &&
5317           (event->state & GDK_MOD1_MASK) &&
5318           (event->keyval == GDK_Left || event->keyval == GDK_KP_Left
5319            || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
5320            || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
5321            || event->keyval == GDK_End || event->keyval == GDK_KP_End))
5322         {
5323           GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
5324
5325           if (event->keyval == (rtl ? GDK_Right : GDK_Left)
5326               || event->keyval == (rtl ? GDK_KP_Right : GDK_KP_Left))
5327             {
5328               GtkTreeViewColumn *col;
5329               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
5330               if (col != (GtkTreeViewColumn *)0x1)
5331                 gtk_tree_view_move_column_after (tree_view, column, col);
5332               else
5333                 gtk_widget_error_bell (widget);
5334             }
5335           else if (event->keyval == (rtl ? GDK_Left : GDK_Right)
5336                    || event->keyval == (rtl ? GDK_KP_Left : GDK_KP_Right))
5337             {
5338               GtkTreeViewColumn *col;
5339               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
5340               if (col != (GtkTreeViewColumn *)0x1)
5341                 gtk_tree_view_move_column_after (tree_view, column, col);
5342               else
5343                 gtk_widget_error_bell (widget);
5344             }
5345           else if (event->keyval == GDK_Home || event->keyval == GDK_KP_Home)
5346             {
5347               GtkTreeViewColumn *col;
5348               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
5349               if (col != (GtkTreeViewColumn *)0x1)
5350                 gtk_tree_view_move_column_after (tree_view, column, col);
5351               else
5352                 gtk_widget_error_bell (widget);
5353             }
5354           else if (event->keyval == GDK_End || event->keyval == GDK_KP_End)
5355             {
5356               GtkTreeViewColumn *col;
5357               col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
5358               if (col != (GtkTreeViewColumn *)0x1)
5359                 gtk_tree_view_move_column_after (tree_view, column, col);
5360               else
5361                 gtk_widget_error_bell (widget);
5362             }
5363
5364           return TRUE;
5365         }
5366     }
5367
5368   /* Chain up to the parent class.  It handles the keybindings. */
5369   if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
5370     return TRUE;
5371
5372   if (tree_view->priv->search_entry_avoid_unhandled_binding)
5373     {
5374       tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
5375       return FALSE;
5376     }
5377
5378   /* We pass the event to the search_entry.  If its text changes, then we start
5379    * the typeahead find capabilities. */
5380   if (GTK_WIDGET_HAS_FOCUS (tree_view)
5381       && tree_view->priv->enable_search
5382       && !tree_view->priv->search_custom_entry_set)
5383     {
5384       GdkEvent *new_event;
5385       char *old_text;
5386       const char *new_text;
5387       gboolean retval;
5388       GdkScreen *screen;
5389       gboolean text_modified;
5390       gulong popup_menu_id;
5391
5392       gtk_tree_view_ensure_interactive_directory (tree_view);
5393
5394       /* Make a copy of the current text */
5395       old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
5396       new_event = gdk_event_copy ((GdkEvent *) event);
5397       g_object_unref (((GdkEventKey *) new_event)->window);
5398       ((GdkEventKey *) new_event)->window = g_object_ref (tree_view->priv->search_window->window);
5399       gtk_widget_realize (tree_view->priv->search_window);
5400
5401       popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
5402                                         "popup-menu", G_CALLBACK (gtk_true),
5403                                         NULL);
5404
5405       /* Move the entry off screen */
5406       screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
5407       gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
5408                        gdk_screen_get_width (screen) + 1,
5409                        gdk_screen_get_height (screen) + 1);
5410       gtk_widget_show (tree_view->priv->search_window);
5411
5412       /* Send the event to the window.  If the preedit_changed signal is emitted
5413        * during this event, we will set priv->imcontext_changed  */
5414       tree_view->priv->imcontext_changed = FALSE;
5415       retval = gtk_widget_event (tree_view->priv->search_window, new_event);
5416       gdk_event_free (new_event);
5417       gtk_widget_hide (tree_view->priv->search_window);
5418
5419       g_signal_handler_disconnect (tree_view->priv->search_entry,
5420                                    popup_menu_id);
5421
5422       /* We check to make sure that the entry tried to handle the text, and that
5423        * the text has changed.
5424        */
5425       new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
5426       text_modified = strcmp (old_text, new_text) != 0;
5427       g_free (old_text);
5428       if (tree_view->priv->imcontext_changed ||    /* we're in a preedit */
5429           (retval && text_modified))               /* ...or the text was modified */
5430         {
5431           if (gtk_tree_view_real_start_interactive_search (tree_view, FALSE))
5432             {
5433               gtk_widget_grab_focus (GTK_WIDGET (tree_view));
5434               return TRUE;
5435             }
5436           else
5437             {
5438               gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
5439               return FALSE;
5440             }
5441         }
5442     }
5443
5444   return FALSE;
5445 }
5446
5447 static gboolean
5448 gtk_tree_view_key_release (GtkWidget   *widget,
5449                            GdkEventKey *event)
5450 {
5451   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5452
5453   if (tree_view->priv->rubber_band_status)
5454     return TRUE;
5455
5456   return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
5457 }
5458
5459 /* FIXME Is this function necessary? Can I get an enter_notify event
5460  * w/o either an expose event or a mouse motion event?
5461  */
5462 static gboolean
5463 gtk_tree_view_enter_notify (GtkWidget        *widget,
5464                             GdkEventCrossing *event)
5465 {
5466   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
5467   GtkRBTree *tree;
5468   GtkRBNode *node;
5469   gint new_y;
5470
5471   /* Sanity check it */
5472   if (event->window != tree_view->priv->bin_window)
5473     return FALSE;
5474
5475   if (tree_view->priv->tree == NULL)
5476     return FALSE;
5477
5478   if (event->mode == GDK_CROSSING_GRAB ||
5479       event->mode == GDK_CROSSING_GTK_GRAB ||
5480       event->mode == GDK_CROSSING_GTK_UNGRAB ||
5481       event->mode == GDK_CROSSING_STATE_CHANGED)
5482     return TRUE;
5483
5484   /* find the node internally */
5485   new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
5486   if (new_y < 0)
5487     new_y = 0;
5488   _gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
5489
5490   if ((tree_view->priv->button_pressed_node == NULL) ||
5491       (tree_view->priv->button_pressed_node == node))
5492     prelight_or_select (tree_view, tree, node, event->x, event->y);
5493
5494   return TRUE;
5495 }
5496
5497 static gboolean
5498 gtk_tree_view_leave_notify (GtkWidget        *widget,
5499                             GdkEventCrossing *event)
5500 {
5501   GtkTreeView *tree_view;
5502
5503   if (event->mode == GDK_CROSSING_GRAB)
5504     return TRUE;
5505
5506   tree_view = GTK_TREE_VIEW (widget);
5507
5508   if (tree_view->priv->prelight_node)
5509     _gtk_tree_view_queue_draw_node (tree_view,
5510                                    tree_view->priv->prelight_tree,
5511                                    tree_view->priv->prelight_node,
5512                                    NULL);
5513
5514   prelight_or_select (tree_view,
5515                       NULL, NULL,
5516                       -1000, -1000); /* coords not possibly over an arrow */
5517
5518   return TRUE;
5519 }
5520
5521
5522 static gint
5523 gtk_tree_view_focus_out (GtkWidget     *widget,
5524                          GdkEventFocus *event)
5525 {
5526   GtkTreeView *tree_view;
5527
5528   tree_view = GTK_TREE_VIEW (widget);
5529
5530   gtk_widget_queue_draw (widget);
5531
5532   /* destroy interactive search dialog */
5533   if (tree_view->priv->search_window)
5534     gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
5535
5536   return FALSE;
5537 }
5538
5539
5540 /* Incremental Reflow
5541  */
5542
5543 static void
5544 gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
5545                                  GtkRBTree   *tree,
5546                                  GtkRBNode   *node)
5547 {
5548   gint y;
5549
5550   y = _gtk_rbtree_node_find_offset (tree, node)
5551     - tree_view->priv->vadjustment->value
5552     + TREE_VIEW_HEADER_HEIGHT (tree_view);
5553
5554   gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
5555                               0, y,
5556                               GTK_WIDGET (tree_view)->allocation.width,
5557                               GTK_RBNODE_GET_HEIGHT (node));
5558 }
5559
5560 static gboolean
5561 node_is_visible (GtkTreeView *tree_view,
5562                  GtkRBTree   *tree,
5563                  GtkRBNode   *node)
5564 {
5565   int y;
5566   int height;
5567
5568   y = _gtk_rbtree_node_find_offset (tree, node);
5569   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5570
5571   if (y >= tree_view->priv->vadjustment->value &&
5572       y + height <= (tree_view->priv->vadjustment->value
5573                      + tree_view->priv->vadjustment->page_size))
5574     return TRUE;
5575
5576   return FALSE;
5577 }
5578
5579 /* Returns TRUE if it updated the size
5580  */
5581 static gboolean
5582 validate_row (GtkTreeView *tree_view,
5583               GtkRBTree   *tree,
5584               GtkRBNode   *node,
5585               GtkTreeIter *iter,
5586               GtkTreePath *path)
5587 {
5588   GtkTreeViewColumn *column;
5589   GList *list, *first_column, *last_column;
5590   gint height = 0;
5591   gint horizontal_separator;
5592   gint vertical_separator;
5593   gint focus_line_width;
5594   gint depth = gtk_tree_path_get_depth (path);
5595   gboolean retval = FALSE;
5596   gboolean is_separator = FALSE;
5597   gboolean draw_vgrid_lines, draw_hgrid_lines;
5598   gint focus_pad;
5599   gint grid_line_width;
5600   gboolean wide_separators;
5601   gint separator_height;
5602
5603   /* double check the row needs validating */
5604   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
5605       ! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5606     return FALSE;
5607
5608   is_separator = row_is_separator (tree_view, iter, NULL);
5609
5610   gtk_widget_style_get (GTK_WIDGET (tree_view),
5611                         "focus-padding", &focus_pad,
5612                         "focus-line-width", &focus_line_width,
5613                         "horizontal-separator", &horizontal_separator,
5614                         "vertical-separator", &vertical_separator,
5615                         "grid-line-width", &grid_line_width,
5616                         "wide-separators",  &wide_separators,
5617                         "separator-height", &separator_height,
5618                         NULL);
5619
5620   draw_vgrid_lines =
5621     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
5622     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5623   draw_hgrid_lines =
5624     tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
5625     || tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
5626
5627   for (last_column = g_list_last (tree_view->priv->columns);
5628        last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
5629        last_column = last_column->prev)
5630     ;
5631
5632   for (first_column = g_list_first (tree_view->priv->columns);
5633        first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
5634        first_column = first_column->next)
5635     ;
5636
5637   for (list = tree_view->priv->columns; list; list = list->next)
5638     {
5639       gint tmp_width;
5640       gint tmp_height;
5641
5642       column = list->data;
5643
5644       if (! column->visible)
5645         continue;
5646
5647       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
5648         continue;
5649
5650       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
5651                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
5652                                                node->children?TRUE:FALSE);
5653       gtk_tree_view_column_cell_get_size (column,
5654                                           NULL, NULL, NULL,
5655                                           &tmp_width, &tmp_height);
5656
5657       if (!is_separator)
5658         {
5659           tmp_height += vertical_separator;
5660           height = MAX (height, tmp_height);
5661           height = MAX (height, tree_view->priv->expander_size);
5662         }
5663       else
5664         {
5665           if (wide_separators)
5666             height = separator_height + 2 * focus_pad;
5667           else
5668             height = 2 + 2 * focus_pad;
5669         }
5670
5671       if (gtk_tree_view_is_expander_column (tree_view, column))
5672         {
5673           tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
5674
5675           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
5676             tmp_width += depth * tree_view->priv->expander_size;
5677         }
5678       else
5679         tmp_width = tmp_width + horizontal_separator;
5680
5681       if (draw_vgrid_lines)
5682         {
5683           if (list->data == first_column || list->data == last_column)
5684             tmp_width += grid_line_width / 2.0;
5685           else
5686             tmp_width += grid_line_width;
5687         }
5688
5689       if (tmp_width > column->requested_width)
5690         {
5691           retval = TRUE;
5692           column->requested_width = tmp_width;
5693         }
5694     }
5695
5696   if (draw_hgrid_lines)
5697     height += grid_line_width;
5698
5699   if (height != GTK_RBNODE_GET_HEIGHT (node))
5700     {
5701       retval = TRUE;
5702       _gtk_rbtree_node_set_height (tree, node, height);
5703     }
5704   _gtk_rbtree_node_mark_valid (tree, node);
5705   tree_view->priv->post_validation_flag = TRUE;
5706
5707   return retval;
5708 }
5709
5710
5711 static void
5712 validate_visible_area (GtkTreeView *tree_view)
5713 {
5714   GtkTreePath *path = NULL;
5715   GtkTreePath *above_path = NULL;
5716   GtkTreeIter iter;
5717   GtkRBTree *tree = NULL;
5718   GtkRBNode *node = NULL;
5719   gboolean need_redraw = FALSE;
5720   gboolean size_changed = FALSE;
5721   gint total_height;
5722   gint area_above = 0;
5723   gint area_below = 0;
5724
5725   if (tree_view->priv->tree == NULL)
5726     return;
5727
5728   if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
5729       tree_view->priv->scroll_to_path == NULL)
5730     return;
5731
5732   total_height = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
5733
5734   if (total_height == 0)
5735     return;
5736
5737   /* First, we check to see if we need to scroll anywhere
5738    */
5739   if (tree_view->priv->scroll_to_path)
5740     {
5741       path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
5742       if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
5743         {
5744           /* we are going to scroll, and will update dy */
5745           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5746           if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5747               GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5748             {
5749               _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5750               if (validate_row (tree_view, tree, node, &iter, path))
5751                 size_changed = TRUE;
5752             }
5753
5754           if (tree_view->priv->scroll_to_use_align)
5755             {
5756               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5757               area_above = (total_height - height) *
5758                 tree_view->priv->scroll_to_row_align;
5759               area_below = total_height - area_above - height;
5760               area_above = MAX (area_above, 0);
5761               area_below = MAX (area_below, 0);
5762             }
5763           else
5764             {
5765               /* two cases:
5766                * 1) row not visible
5767                * 2) row visible
5768                */
5769               gint dy;
5770               gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5771
5772               dy = _gtk_rbtree_node_find_offset (tree, node);
5773
5774               if (dy >= tree_view->priv->vadjustment->value &&
5775                   dy + height <= (tree_view->priv->vadjustment->value
5776                                   + tree_view->priv->vadjustment->page_size))
5777                 {
5778                   /* row visible: keep the row at the same position */
5779                   area_above = dy - tree_view->priv->vadjustment->value;
5780                   area_below = (tree_view->priv->vadjustment->value +
5781                                 tree_view->priv->vadjustment->page_size)
5782                                - dy - height;
5783                 }
5784               else
5785                 {
5786                   /* row not visible */
5787                   if (dy >= 0
5788                       && dy + height <= tree_view->priv->vadjustment->page_size)
5789                     {
5790                       /* row at the beginning -- fixed */
5791                       area_above = dy;
5792                       area_below = tree_view->priv->vadjustment->page_size
5793                                    - area_above - height;
5794                     }
5795                   else if (dy >= (tree_view->priv->vadjustment->upper -
5796                                   tree_view->priv->vadjustment->page_size))
5797                     {
5798                       /* row at the end -- fixed */
5799                       area_above = dy - (tree_view->priv->vadjustment->upper -
5800                                    tree_view->priv->vadjustment->page_size);
5801                       area_below = tree_view->priv->vadjustment->page_size -
5802                                    area_above - height;
5803
5804                       if (area_below < 0)
5805                         {
5806                           area_above = tree_view->priv->vadjustment->page_size - height;
5807                           area_below = 0;
5808                         }
5809                     }
5810                   else
5811                     {
5812                       /* row somewhere in the middle, bring it to the top
5813                        * of the view
5814                        */
5815                       area_above = 0;
5816                       area_below = total_height - height;
5817                     }
5818                 }
5819             }
5820         }
5821       else
5822         /* the scroll to isn't valid; ignore it.
5823          */
5824         {
5825           if (tree_view->priv->scroll_to_path && !path)
5826             {
5827               gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
5828               tree_view->priv->scroll_to_path = NULL;
5829             }
5830           if (path)
5831             gtk_tree_path_free (path);
5832           path = NULL;
5833         }
5834     }
5835
5836   /* We didn't have a scroll_to set, so we just handle things normally
5837    */
5838   if (path == NULL)
5839     {
5840       gint offset;
5841
5842       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
5843                                         TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
5844                                         &tree, &node);
5845       if (node == NULL)
5846         {
5847           /* In this case, nothing has been validated */
5848           path = gtk_tree_path_new_first ();
5849           _gtk_tree_view_find_node (tree_view, path, &tree, &node);
5850         }
5851       else
5852         {
5853           path = _gtk_tree_view_find_path (tree_view, tree, node);
5854           total_height += offset;
5855         }
5856
5857       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
5858
5859       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5860           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5861         {
5862           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5863           if (validate_row (tree_view, tree, node, &iter, path))
5864             size_changed = TRUE;
5865         }
5866       area_above = 0;
5867       area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5868     }
5869
5870   above_path = gtk_tree_path_copy (path);
5871
5872   /* if we do not validate any row above the new top_row, we will make sure
5873    * that the row immediately above top_row has been validated. (if we do not
5874    * do this, _gtk_rbtree_find_offset will find the row above top_row, because
5875    * when invalidated that row's height will be zero. and this will mess up
5876    * scrolling).
5877    */
5878   if (area_above == 0)
5879     {
5880       GtkRBTree *tmptree;
5881       GtkRBNode *tmpnode;
5882
5883       _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
5884       _gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
5885
5886       if (tmpnode)
5887         {
5888           GtkTreePath *tmppath;
5889           GtkTreeIter tmpiter;
5890
5891           tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
5892           gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
5893
5894           if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
5895               GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
5896             {
5897               _gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
5898               if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
5899                 size_changed = TRUE;
5900             }
5901
5902           gtk_tree_path_free (tmppath);
5903         }
5904     }
5905
5906   /* Now, we walk forwards and backwards, measuring rows. Unfortunately,
5907    * backwards is much slower then forward, as there is no iter_prev function.
5908    * We go forwards first in case we run out of tree.  Then we go backwards to
5909    * fill out the top.
5910    */
5911   while (node && area_below > 0)
5912     {
5913       if (node->children)
5914         {
5915           GtkTreeIter parent = iter;
5916           gboolean has_child;
5917
5918           tree = node->children;
5919           node = tree->root;
5920
5921           g_assert (node != tree->nil);
5922
5923           while (node->left != tree->nil)
5924             node = node->left;
5925           has_child = gtk_tree_model_iter_children (tree_view->priv->model,
5926                                                     &iter,
5927                                                     &parent);
5928           TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
5929           gtk_tree_path_down (path);
5930         }
5931       else
5932         {
5933           gboolean done = FALSE;
5934           do
5935             {
5936               node = _gtk_rbtree_next (tree, node);
5937               if (node != NULL)
5938                 {
5939                   gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
5940                   done = TRUE;
5941                   gtk_tree_path_next (path);
5942
5943                   /* Sanity Check! */
5944                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
5945                 }
5946               else
5947                 {
5948                   GtkTreeIter parent_iter = iter;
5949                   gboolean has_parent;
5950
5951                   node = tree->parent_node;
5952                   tree = tree->parent_tree;
5953                   if (tree == NULL)
5954                     break;
5955                   has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
5956                                                            &iter,
5957                                                            &parent_iter);
5958                   gtk_tree_path_up (path);
5959
5960                   /* Sanity check */
5961                   TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
5962                 }
5963             }
5964           while (!done);
5965         }
5966
5967       if (!node)
5968         break;
5969
5970       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
5971           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
5972         {
5973           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
5974           if (validate_row (tree_view, tree, node, &iter, path))
5975               size_changed = TRUE;
5976         }
5977
5978       area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
5979     }
5980   gtk_tree_path_free (path);
5981
5982   /* If we ran out of tree, and have extra area_below left, we need to add it
5983    * to area_above */
5984   if (area_below > 0)
5985     area_above += area_below;
5986
5987   _gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
5988
5989   /* We walk backwards */
5990   while (area_above > 0)
5991     {
5992       _gtk_rbtree_prev_full (tree, node, &tree, &node);
5993
5994       /* Always find the new path in the tree.  We cannot just assume
5995        * a gtk_tree_path_prev() is enough here, as there might be children
5996        * in between this node and the previous sibling node.  If this
5997        * appears to be a performance hotspot in profiles, we can look into
5998        * intrigate logic for keeping path, node and iter in sync like
5999        * we do for forward walks.  (Which will be hard because of the lacking
6000        * iter_prev).
6001        */
6002
6003       if (node == NULL)
6004         break;
6005
6006       gtk_tree_path_free (above_path);
6007       above_path = _gtk_tree_view_find_path (tree_view, tree, node);
6008
6009       gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
6010
6011       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6012           GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6013         {
6014           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
6015           if (validate_row (tree_view, tree, node, &iter, above_path))
6016             size_changed = TRUE;
6017         }
6018       area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6019     }
6020
6021   /* if we scrolled to a path, we need to set the dy here,
6022    * and sync the top row accordingly
6023    */
6024   if (tree_view->priv->scroll_to_path)
6025     {
6026       gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
6027       gtk_tree_view_top_row_to_dy (tree_view);
6028
6029       need_redraw = TRUE;
6030     }
6031   else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6032     {
6033       /* when we are not scrolling, we should never set dy to something
6034        * else than zero. we update top_row to be in sync with dy = 0.
6035        */
6036       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6037       gtk_tree_view_dy_to_top_row (tree_view);
6038     }
6039   else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6040     {
6041       gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
6042       gtk_tree_view_dy_to_top_row (tree_view);
6043     }
6044   else
6045     gtk_tree_view_top_row_to_dy (tree_view);
6046
6047   /* update width/height and queue a resize */
6048   if (size_changed)
6049     {
6050       GtkRequisition requisition;
6051
6052       /* We temporarily guess a size, under the assumption that it will be the
6053        * same when we get our next size_allocate.  If we don't do this, we'll be
6054        * in an inconsistent state if we call top_row_to_dy. */
6055
6056       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6057       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6058       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6059       gtk_adjustment_changed (tree_view->priv->hadjustment);
6060       gtk_adjustment_changed (tree_view->priv->vadjustment);
6061       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6062     }
6063
6064   if (tree_view->priv->scroll_to_path)
6065     {
6066       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
6067       tree_view->priv->scroll_to_path = NULL;
6068     }
6069
6070   if (above_path)
6071     gtk_tree_path_free (above_path);
6072
6073   if (tree_view->priv->scroll_to_column)
6074     {
6075       tree_view->priv->scroll_to_column = NULL;
6076     }
6077   if (need_redraw)
6078     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
6079 }
6080
6081 static void
6082 initialize_fixed_height_mode (GtkTreeView *tree_view)
6083 {
6084   if (!tree_view->priv->tree)
6085     return;
6086
6087   if (tree_view->priv->fixed_height < 0)
6088     {
6089       GtkTreeIter iter;
6090       GtkTreePath *path;
6091
6092       GtkRBTree *tree = NULL;
6093       GtkRBNode *node = NULL;
6094
6095       tree = tree_view->priv->tree;
6096       node = tree->root;
6097
6098       path = _gtk_tree_view_find_path (tree_view, tree, node);
6099       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6100
6101       validate_row (tree_view, tree, node, &iter, path);
6102
6103       gtk_tree_path_free (path);
6104
6105       tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6106     }
6107
6108    _gtk_rbtree_set_fixed_height (tree_view->priv->tree,
6109                                  tree_view->priv->fixed_height, TRUE);
6110 }
6111
6112 /* Our strategy for finding nodes to validate is a little convoluted.  We find
6113  * the left-most uninvalidated node.  We then try walking right, validating
6114  * nodes.  Once we find a valid node, we repeat the previous process of finding
6115  * the first invalid node.
6116  */
6117
6118 static gboolean
6119 do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
6120 {
6121   GtkRBTree *tree = NULL;
6122   GtkRBNode *node = NULL;
6123   gboolean validated_area = FALSE;
6124   gint retval = TRUE;
6125   GtkTreePath *path = NULL;
6126   GtkTreeIter iter;
6127   GTimer *timer;
6128   gint i = 0;
6129
6130   gint prev_height = -1;
6131   gboolean fixed_height = TRUE;
6132
6133   g_assert (tree_view);
6134
6135   if (tree_view->priv->tree == NULL)
6136       return FALSE;
6137
6138   if (tree_view->priv->fixed_height_mode)
6139     {
6140       if (tree_view->priv->fixed_height < 0)
6141         initialize_fixed_height_mode (tree_view);
6142
6143       return FALSE;
6144     }
6145
6146   timer = g_timer_new ();
6147   g_timer_start (timer);
6148
6149   do
6150     {
6151       if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
6152         {
6153           retval = FALSE;
6154           goto done;
6155         }
6156
6157       if (path != NULL)
6158         {
6159           node = _gtk_rbtree_next (tree, node);
6160           if (node != NULL)
6161             {
6162               TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
6163               gtk_tree_path_next (path);
6164             }
6165           else
6166             {
6167               gtk_tree_path_free (path);
6168               path = NULL;
6169             }
6170         }
6171
6172       if (path == NULL)
6173         {
6174           tree = tree_view->priv->tree;
6175           node = tree_view->priv->tree->root;
6176
6177           g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
6178
6179           do
6180             {
6181               if (node->left != tree->nil &&
6182                   GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
6183                 {
6184                   node = node->left;
6185                 }
6186               else if (node->right != tree->nil &&
6187                        GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
6188                 {
6189                   node = node->right;
6190                 }
6191               else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
6192                        GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
6193                 {
6194                   break;
6195                 }
6196               else if (node->children != NULL)
6197                 {
6198                   tree = node->children;
6199                   node = tree->root;
6200                 }
6201               else
6202                 /* RBTree corruption!  All bad */
6203                 g_assert_not_reached ();
6204             }
6205           while (TRUE);
6206           path = _gtk_tree_view_find_path (tree_view, tree, node);
6207           gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
6208         }
6209
6210       validated_area = validate_row (tree_view, tree, node, &iter, path) ||
6211                        validated_area;
6212
6213       if (!tree_view->priv->fixed_height_check)
6214         {
6215           gint height;
6216
6217           height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
6218           if (prev_height < 0)
6219             prev_height = height;
6220           else if (prev_height != height)
6221             fixed_height = FALSE;
6222         }
6223
6224       i++;
6225     }
6226   while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
6227
6228   if (!tree_view->priv->fixed_height_check)
6229    {
6230      if (fixed_height)
6231        _gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
6232
6233      tree_view->priv->fixed_height_check = 1;
6234    }
6235
6236  done:
6237   if (validated_area)
6238     {
6239       GtkRequisition requisition;
6240       /* We temporarily guess a size, under the assumption that it will be the
6241        * same when we get our next size_allocate.  If we don't do this, we'll be
6242        * in an inconsistent state when we call top_row_to_dy. */
6243
6244       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6245       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6246       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6247       gtk_adjustment_changed (tree_view->priv->hadjustment);
6248       gtk_adjustment_changed (tree_view->priv->vadjustment);
6249
6250       if (queue_resize)
6251         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6252     }
6253
6254   if (path) gtk_tree_path_free (path);
6255   g_timer_destroy (timer);
6256
6257   return retval;
6258 }
6259
6260 static gboolean
6261 validate_rows (GtkTreeView *tree_view)
6262 {
6263   gboolean retval;
6264
6265   retval = do_validate_rows (tree_view, TRUE);
6266
6267   if (! retval && tree_view->priv->validate_rows_timer)
6268     {
6269       g_source_remove (tree_view->priv->validate_rows_timer);
6270       tree_view->priv->validate_rows_timer = 0;
6271     }
6272
6273   return retval;
6274 }
6275
6276 static gboolean
6277 validate_rows_handler (GtkTreeView *tree_view)
6278 {
6279   gboolean retval;
6280
6281   retval = do_validate_rows (tree_view, TRUE);
6282   if (! retval && tree_view->priv->validate_rows_timer)
6283     {
6284       g_source_remove (tree_view->priv->validate_rows_timer);
6285       tree_view->priv->validate_rows_timer = 0;
6286     }
6287
6288   return retval;
6289 }
6290
6291 static gboolean
6292 do_presize_handler (GtkTreeView *tree_view)
6293 {
6294   if (tree_view->priv->mark_rows_col_dirty)
6295     {
6296       if (tree_view->priv->tree)
6297         _gtk_rbtree_column_invalid (tree_view->priv->tree);
6298       tree_view->priv->mark_rows_col_dirty = FALSE;
6299     }
6300   validate_visible_area (tree_view);
6301   tree_view->priv->presize_handler_timer = 0;
6302
6303   if (tree_view->priv->fixed_height_mode)
6304     {
6305       GtkRequisition requisition;
6306
6307       gtk_widget_size_request (GTK_WIDGET (tree_view), &requisition);
6308
6309       tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
6310       tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
6311       gtk_adjustment_changed (tree_view->priv->hadjustment);
6312       gtk_adjustment_changed (tree_view->priv->vadjustment);
6313       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6314     }
6315
6316   return FALSE;
6317 }
6318
6319 static gboolean
6320 presize_handler_callback (gpointer data)
6321 {
6322   do_presize_handler (GTK_TREE_VIEW (data));
6323
6324   return FALSE;
6325 }
6326
6327 static void
6328 install_presize_handler (GtkTreeView *tree_view)
6329 {
6330   if (! GTK_WIDGET_REALIZED (tree_view))
6331     return;
6332
6333   if (! tree_view->priv->presize_handler_timer)
6334     {
6335       tree_view->priv->presize_handler_timer =
6336         gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
6337     }
6338   if (! tree_view->priv->validate_rows_timer)
6339     {
6340       tree_view->priv->validate_rows_timer =
6341         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
6342     }
6343 }
6344
6345 static gboolean
6346 scroll_sync_handler (GtkTreeView *tree_view)
6347 {
6348   if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
6349     gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
6350   else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
6351     gtk_tree_view_top_row_to_dy (tree_view);
6352   else
6353     gtk_tree_view_dy_to_top_row (tree_view);
6354
6355   tree_view->priv->scroll_sync_timer = 0;
6356
6357   return FALSE;
6358 }
6359
6360 static void
6361 install_scroll_sync_handler (GtkTreeView *tree_view)
6362 {
6363   if (! GTK_WIDGET_REALIZED (tree_view))
6364     return;
6365
6366   if (!tree_view->priv->scroll_sync_timer)
6367     {
6368       tree_view->priv->scroll_sync_timer =
6369         gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
6370     }
6371 }
6372
6373 static void
6374 gtk_tree_view_set_top_row (GtkTreeView *tree_view,
6375                            GtkTreePath *path,
6376                            gint         offset)
6377 {
6378   gtk_tree_row_reference_free (tree_view->priv->top_row);
6379
6380   if (!path)
6381     {
6382       tree_view->priv->top_row = NULL;
6383       tree_view->priv->top_row_dy = 0;
6384     }
6385   else
6386     {
6387       tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
6388       tree_view->priv->top_row_dy = offset;
6389     }
6390 }
6391
6392 /* Always call this iff dy is in the visible range.  If the tree is empty, then
6393  * it's set to be NULL, and top_row_dy is 0;
6394  */
6395 static void
6396 gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
6397 {
6398   gint offset;
6399   GtkTreePath *path;
6400   GtkRBTree *tree;
6401   GtkRBNode *node;
6402
6403   if (tree_view->priv->tree == NULL)
6404     {
6405       gtk_tree_view_set_top_row (tree_view, NULL, 0);
6406     }
6407   else
6408     {
6409       offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
6410                                         tree_view->priv->dy,
6411                                         &tree, &node);
6412
6413       if (tree == NULL)
6414         {
6415           tree_view->priv->top_row = NULL;
6416           tree_view->priv->top_row_dy = 0;
6417         }
6418       else
6419         {
6420           path = _gtk_tree_view_find_path (tree_view, tree, node);
6421           gtk_tree_view_set_top_row (tree_view, path, offset);
6422           gtk_tree_path_free (path);
6423         }
6424     }
6425 }
6426
6427 static void
6428 gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
6429 {
6430   GtkTreePath *path;
6431   GtkRBTree *tree;
6432   GtkRBNode *node;
6433   int new_dy;
6434
6435   if (tree_view->priv->top_row)
6436     path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
6437   else
6438     path = NULL;
6439
6440   if (!path)
6441     tree = NULL;
6442   else
6443     _gtk_tree_view_find_node (tree_view, path, &tree, &node);
6444
6445   if (path)
6446     gtk_tree_path_free (path);
6447
6448   if (tree == NULL)
6449     {
6450       /* keep dy and set new toprow */
6451       gtk_tree_row_reference_free (tree_view->priv->top_row);
6452       tree_view->priv->top_row = NULL;
6453       tree_view->priv->top_row_dy = 0;
6454       /* DO NOT install the idle handler */
6455       gtk_tree_view_dy_to_top_row (tree_view);
6456       return;
6457     }
6458
6459   if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
6460       < tree_view->priv->top_row_dy)
6461     {
6462       /* new top row -- do NOT install the idle handler */
6463       gtk_tree_view_dy_to_top_row (tree_view);
6464       return;
6465     }
6466
6467   new_dy = _gtk_rbtree_node_find_offset (tree, node);
6468   new_dy += tree_view->priv->top_row_dy;
6469
6470   if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
6471     new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
6472
6473   new_dy = MAX (0, new_dy);
6474
6475   tree_view->priv->in_top_row_to_dy = TRUE;
6476   gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
6477   tree_view->priv->in_top_row_to_dy = FALSE;
6478 }
6479
6480
6481 void
6482 _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
6483 {
6484   tree_view->priv->mark_rows_col_dirty = TRUE;
6485
6486   install_presize_handler (tree_view);
6487 }
6488
6489 /*
6490  * This function works synchronously (due to the while (validate_rows...)
6491  * loop).
6492  *
6493  * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
6494  * here. You now need to check that yourself.
6495  */
6496 void
6497 _gtk_tree_view_column_autosize (GtkTreeView *tree_view,
6498                                 GtkTreeViewColumn *column)
6499 {
6500   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
6501   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
6502
6503   _gtk_tree_view_column_cell_set_dirty (column, FALSE);
6504
6505   do_presize_handler (tree_view);
6506   while (validate_rows (tree_view));
6507
6508   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
6509 }
6510
6511 /* Drag-and-drop */
6512
6513 static void
6514 set_source_row (GdkDragContext *context,
6515                 GtkTreeModel   *model,
6516                 GtkTreePath    *source_row)
6517 {
6518   g_object_set_data_full (G_OBJECT (context),
6519                           I_("gtk-tree-view-source-row"),
6520                           source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
6521                           (GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
6522 }
6523
6524 static GtkTreePath*
6525 get_source_row (GdkDragContext *context)
6526 {
6527   GtkTreeRowReference *ref =
6528     g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
6529
6530   if (ref)
6531     return gtk_tree_row_reference_get_path (ref);
6532   else
6533     return NULL;
6534 }
6535
6536 typedef struct
6537 {
6538   GtkTreeRowReference *dest_row;
6539   guint                path_down_mode   : 1;
6540   guint                empty_view_drop  : 1;
6541   guint                drop_append_mode : 1;
6542 }
6543 DestRow;
6544
6545 static void
6546 dest_row_free (gpointer data)
6547 {
6548   DestRow *dr = (DestRow *)data;
6549
6550   gtk_tree_row_reference_free (dr->dest_row);
6551   g_slice_free (DestRow, dr);
6552 }
6553
6554 static void
6555 set_dest_row (GdkDragContext *context,
6556               GtkTreeModel   *model,
6557               GtkTreePath    *dest_row,
6558               gboolean        path_down_mode,
6559               gboolean        empty_view_drop,
6560               gboolean        drop_append_mode)
6561 {
6562   DestRow *dr;
6563
6564   if (!dest_row)
6565     {
6566       g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6567                               NULL, NULL);
6568       return;
6569     }
6570
6571   dr = g_slice_new (DestRow);
6572
6573   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
6574   dr->path_down_mode = path_down_mode != FALSE;
6575   dr->empty_view_drop = empty_view_drop != FALSE;
6576   dr->drop_append_mode = drop_append_mode != FALSE;
6577
6578   g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
6579                           dr, (GDestroyNotify) dest_row_free);
6580 }
6581
6582 static GtkTreePath*
6583 get_dest_row (GdkDragContext *context,
6584               gboolean       *path_down_mode)
6585 {
6586   DestRow *dr =
6587     g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
6588
6589   if (dr)
6590     {
6591       GtkTreePath *path = NULL;
6592
6593       if (path_down_mode)
6594         *path_down_mode = dr->path_down_mode;
6595
6596       if (dr->dest_row)
6597         path = gtk_tree_row_reference_get_path (dr->dest_row);
6598       else if (dr->empty_view_drop)
6599         path = gtk_tree_path_new_from_indices (0, -1);
6600       else
6601         path = NULL;
6602
6603       if (path && dr->drop_append_mode)
6604         gtk_tree_path_next (path);
6605
6606       return path;
6607     }
6608   else
6609     return NULL;
6610 }
6611
6612 /* Get/set whether drag_motion requested the drag data and
6613  * drag_data_received should thus not actually insert the data,
6614  * since the data doesn't result from a drop.
6615  */
6616 static void
6617 set_status_pending (GdkDragContext *context,
6618                     GdkDragAction   suggested_action)
6619 {
6620   g_object_set_data (G_OBJECT (context),
6621                      I_("gtk-tree-view-status-pending"),
6622                      GINT_TO_POINTER (suggested_action));
6623 }
6624
6625 static GdkDragAction
6626 get_status_pending (GdkDragContext *context)
6627 {
6628   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
6629                                              "gtk-tree-view-status-pending"));
6630 }
6631
6632 static TreeViewDragInfo*
6633 get_info (GtkTreeView *tree_view)
6634 {
6635   return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
6636 }
6637
6638 static void
6639 destroy_info (TreeViewDragInfo *di)
6640 {
6641   g_slice_free (TreeViewDragInfo, di);
6642 }
6643
6644 static TreeViewDragInfo*
6645 ensure_info (GtkTreeView *tree_view)
6646 {
6647   TreeViewDragInfo *di;
6648
6649   di = get_info (tree_view);
6650
6651   if (di == NULL)
6652     {
6653       di = g_slice_new0 (TreeViewDragInfo);
6654
6655       g_object_set_data_full (G_OBJECT (tree_view),
6656                               I_("gtk-tree-view-drag-info"),
6657                               di,
6658                               (GDestroyNotify) destroy_info);
6659     }
6660
6661   return di;
6662 }
6663
6664 static void
6665 remove_info (GtkTreeView *tree_view)
6666 {
6667   g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
6668 }
6669
6670 #if 0
6671 static gint
6672 drag_scan_timeout (gpointer data)
6673 {
6674   GtkTreeView *tree_view;
6675   gint x, y;
6676   GdkModifierType state;
6677   GtkTreePath *path = NULL;
6678   GtkTreeViewColumn *column = NULL;
6679   GdkRectangle visible_rect;
6680
6681   GDK_THREADS_ENTER ();
6682
6683   tree_view = GTK_TREE_VIEW (data);
6684
6685   gdk_window_get_pointer (tree_view->priv->bin_window,
6686                           &x, &y, &state);
6687
6688   gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
6689
6690   /* See if we are near the edge. */
6691   if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
6692       (visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
6693       (y - visible_rect.y) < SCROLL_EDGE_SIZE ||
6694       (visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
6695     {
6696       gtk_tree_view_get_path_at_pos (tree_view,
6697                                      tree_view->priv->bin_window,
6698                                      x, y,
6699                                      &path,
6700                                      &column,
6701                                      NULL,
6702                                      NULL);
6703
6704       if (path != NULL)
6705         {
6706           gtk_tree_view_scroll_to_cell (tree_view,
6707                                         path,
6708                                         column,
6709                                         TRUE,
6710                                         0.5, 0.5);
6711
6712           gtk_tree_path_free (path);
6713         }
6714     }
6715
6716   GDK_THREADS_LEAVE ();
6717
6718   return TRUE;
6719 }
6720 #endif /* 0 */
6721
6722 static void
6723 add_scroll_timeout (GtkTreeView *tree_view)
6724 {
6725   if (tree_view->priv->scroll_timeout == 0)
6726     {
6727       tree_view->priv->scroll_timeout =
6728         gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
6729     }
6730 }
6731
6732 static void
6733 remove_scroll_timeout (GtkTreeView *tree_view)
6734 {
6735   if (tree_view->priv->scroll_timeout != 0)
6736     {
6737       g_source_remove (tree_view->priv->scroll_timeout);
6738       tree_view->priv->scroll_timeout = 0;
6739     }
6740 }
6741
6742 static gboolean
6743 check_model_dnd (GtkTreeModel *model,
6744                  GType         required_iface,
6745                  const gchar  *signal)
6746 {
6747   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
6748     {
6749       g_warning ("You must override the default '%s' handler "
6750                  "on GtkTreeView when using models that don't support "
6751                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
6752                  "is to connect to '%s' and call "
6753                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
6754                  "the default handler from running. Look at the source code "
6755                  "for the default handler in gtktreeview.c to get an idea what "
6756                  "your handler should do. (gtktreeview.c is in the GTK source "
6757                  "code.) If you're using GTK from a language other than C, "
6758                  "there may be a more natural way to override default handlers, e.g. via derivation.",
6759                  signal, g_type_name (required_iface), signal);
6760       return FALSE;
6761     }
6762   else
6763     return TRUE;
6764 }
6765
6766 static void
6767 remove_open_timeout (GtkTreeView *tree_view)
6768 {
6769   if (tree_view->priv->open_dest_timeout != 0)
6770     {
6771       g_source_remove (tree_view->priv->open_dest_timeout);
6772       tree_view->priv->open_dest_timeout = 0;
6773     }
6774 }
6775
6776
6777 static gint
6778 open_row_timeout (gpointer data)
6779 {
6780   GtkTreeView *tree_view = data;
6781   GtkTreePath *dest_path = NULL;
6782   GtkTreeViewDropPosition pos;
6783   gboolean result = FALSE;
6784
6785   gtk_tree_view_get_drag_dest_row (tree_view,
6786                                    &dest_path,
6787                                    &pos);
6788
6789   if (dest_path &&
6790       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6791        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
6792     {
6793       gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
6794       tree_view->priv->open_dest_timeout = 0;
6795
6796       gtk_tree_path_free (dest_path);
6797     }
6798   else
6799     {
6800       if (dest_path)
6801         gtk_tree_path_free (dest_path);
6802
6803       result = TRUE;
6804     }
6805
6806   return result;
6807 }
6808
6809 static gboolean
6810 scroll_row_timeout (gpointer data)
6811 {
6812   GtkTreeView *tree_view = data;
6813
6814   gtk_tree_view_vertical_autoscroll (tree_view);
6815
6816   if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
6817     gtk_tree_view_update_rubber_band (tree_view);
6818
6819   return TRUE;
6820 }
6821
6822 /* Returns TRUE if event should not be propagated to parent widgets */
6823 static gboolean
6824 set_destination_row (GtkTreeView    *tree_view,
6825                      GdkDragContext *context,
6826                      /* coordinates relative to the widget */
6827                      gint            x,
6828                      gint            y,
6829                      GdkDragAction  *suggested_action,
6830                      GdkAtom        *target)
6831 {
6832   GtkTreePath *path = NULL;
6833   GtkTreeViewDropPosition pos;
6834   GtkTreeViewDropPosition old_pos;
6835   TreeViewDragInfo *di;
6836   GtkWidget *widget;
6837   GtkTreePath *old_dest_path = NULL;
6838   gboolean can_drop = FALSE;
6839
6840   *suggested_action = 0;
6841   *target = GDK_NONE;
6842
6843   widget = GTK_WIDGET (tree_view);
6844
6845   di = get_info (tree_view);
6846
6847   if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
6848     {
6849       /* someone unset us as a drag dest, note that if
6850        * we return FALSE drag_leave isn't called
6851        */
6852
6853       gtk_tree_view_set_drag_dest_row (tree_view,
6854                                        NULL,
6855                                        GTK_TREE_VIEW_DROP_BEFORE);
6856
6857       remove_scroll_timeout (GTK_TREE_VIEW (widget));
6858       remove_open_timeout (GTK_TREE_VIEW (widget));
6859
6860       return FALSE; /* no longer a drop site */
6861     }
6862
6863   *target = gtk_drag_dest_find_target (widget, context,
6864                                        gtk_drag_dest_get_target_list (widget));
6865   if (*target == GDK_NONE)
6866     {
6867       return FALSE;
6868     }
6869
6870   if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
6871                                           x, y,
6872                                           &path,
6873                                           &pos))
6874     {
6875       gint n_children;
6876       GtkTreeModel *model;
6877
6878       remove_open_timeout (tree_view);
6879
6880       /* the row got dropped on empty space, let's setup a special case
6881        */
6882
6883       if (path)
6884         gtk_tree_path_free (path);
6885
6886       model = gtk_tree_view_get_model (tree_view);
6887
6888       n_children = gtk_tree_model_iter_n_children (model, NULL);
6889       if (n_children)
6890         {
6891           pos = GTK_TREE_VIEW_DROP_AFTER;
6892           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
6893         }
6894       else
6895         {
6896           pos = GTK_TREE_VIEW_DROP_BEFORE;
6897           path = gtk_tree_path_new_from_indices (0, -1);
6898         }
6899
6900       can_drop = TRUE;
6901
6902       goto out;
6903     }
6904
6905   g_assert (path);
6906
6907   /* If we left the current row's "open" zone, unset the timeout for
6908    * opening the row
6909    */
6910   gtk_tree_view_get_drag_dest_row (tree_view,
6911                                    &old_dest_path,
6912                                    &old_pos);
6913
6914   if (old_dest_path &&
6915       (gtk_tree_path_compare (path, old_dest_path) != 0 ||
6916        !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
6917          pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
6918     remove_open_timeout (tree_view);
6919
6920   if (old_dest_path)
6921     gtk_tree_path_free (old_dest_path);
6922
6923   if (TRUE /* FIXME if the location droppable predicate */)
6924     {
6925       can_drop = TRUE;
6926     }
6927
6928 out:
6929   if (can_drop)
6930     {
6931       GtkWidget *source_widget;
6932
6933       *suggested_action = context->suggested_action;
6934       source_widget = gtk_drag_get_source_widget (context);
6935
6936       if (source_widget == widget)
6937         {
6938           /* Default to MOVE, unless the user has
6939            * pressed ctrl or shift to affect available actions
6940            */
6941           if ((context->actions & GDK_ACTION_MOVE) != 0)
6942             *suggested_action = GDK_ACTION_MOVE;
6943         }
6944
6945       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6946                                        path, pos);
6947     }
6948   else
6949     {
6950       /* can't drop here */
6951       remove_open_timeout (tree_view);
6952
6953       gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
6954                                        NULL,
6955                                        GTK_TREE_VIEW_DROP_BEFORE);
6956     }
6957
6958   if (path)
6959     gtk_tree_path_free (path);
6960
6961   return TRUE;
6962 }
6963
6964 static GtkTreePath*
6965 get_logical_dest_row (GtkTreeView *tree_view,
6966                       gboolean    *path_down_mode,
6967                       gboolean    *drop_append_mode)
6968 {
6969   /* adjust path to point to the row the drop goes in front of */
6970   GtkTreePath *path = NULL;
6971   GtkTreeViewDropPosition pos;
6972
6973   g_return_val_if_fail (path_down_mode != NULL, NULL);
6974   g_return_val_if_fail (drop_append_mode != NULL, NULL);
6975
6976   *path_down_mode = FALSE;
6977   *drop_append_mode = 0;
6978
6979   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
6980
6981   if (path == NULL)
6982     return NULL;
6983
6984   if (pos == GTK_TREE_VIEW_DROP_BEFORE)
6985     ; /* do nothing */
6986   else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
6987            pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
6988     *path_down_mode = TRUE;
6989   else
6990     {
6991       GtkTreeIter iter;
6992       GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
6993
6994       g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
6995
6996       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6997           !gtk_tree_model_iter_next (model, &iter))
6998         *drop_append_mode = 1;
6999       else
7000         {
7001           *drop_append_mode = 0;
7002           gtk_tree_path_next (path);
7003         }
7004     }
7005
7006   return path;
7007 }
7008
7009 static gboolean
7010 gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
7011                                         GdkEventMotion   *event)
7012 {
7013   GtkWidget *widget = GTK_WIDGET (tree_view);
7014   GdkDragContext *context;
7015   TreeViewDragInfo *di;
7016   GtkTreePath *path = NULL;
7017   gint button;
7018   gint cell_x, cell_y;
7019   GtkTreeModel *model;
7020   gboolean retval = FALSE;
7021
7022   di = get_info (tree_view);
7023
7024   if (di == NULL || !di->source_set)
7025     goto out;
7026
7027   if (tree_view->priv->pressed_button < 0)
7028     goto out;
7029
7030   if (!gtk_drag_check_threshold (widget,
7031                                  tree_view->priv->press_start_x,
7032                                  tree_view->priv->press_start_y,
7033                                  event->x, event->y))
7034     goto out;
7035
7036   model = gtk_tree_view_get_model (tree_view);
7037
7038   if (model == NULL)
7039     goto out;
7040
7041   button = tree_view->priv->pressed_button;
7042   tree_view->priv->pressed_button = -1;
7043
7044   gtk_tree_view_get_path_at_pos (tree_view,
7045                                  tree_view->priv->press_start_x,
7046                                  tree_view->priv->press_start_y,
7047                                  &path,
7048                                  NULL,
7049                                  &cell_x,
7050                                  &cell_y);
7051
7052   if (path == NULL)
7053     goto out;
7054
7055   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
7056       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
7057                                            path))
7058     goto out;
7059
7060   if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
7061     goto out;
7062
7063   /* Now we can begin the drag */
7064
7065   retval = TRUE;
7066
7067   context = gtk_drag_begin (widget,
7068                             gtk_drag_source_get_target_list (widget),
7069                             di->source_actions,
7070                             button,
7071                             (GdkEvent*)event);
7072
7073   set_source_row (context, model, path);
7074
7075  out:
7076   if (path)
7077     gtk_tree_path_free (path);
7078
7079   return retval;
7080 }
7081
7082
7083 static void
7084 gtk_tree_view_drag_begin (GtkWidget      *widget,
7085                           GdkDragContext *context)
7086 {
7087   GtkTreeView *tree_view;
7088   GtkTreePath *path = NULL;
7089   gint cell_x, cell_y;
7090   GdkPixmap *row_pix;
7091   TreeViewDragInfo *di;
7092
7093   tree_view = GTK_TREE_VIEW (widget);
7094
7095   /* if the user uses a custom DND source impl, we don't set the icon here */
7096   di = get_info (tree_view);
7097
7098   if (di == NULL || !di->source_set)
7099     return;
7100
7101   gtk_tree_view_get_path_at_pos (tree_view,
7102                                  tree_view->priv->press_start_x,
7103                                  tree_view->priv->press_start_y,
7104                                  &path,
7105                                  NULL,
7106                                  &cell_x,
7107                                  &cell_y);
7108
7109   g_return_if_fail (path != NULL);
7110
7111   row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
7112                                                 path);
7113
7114   gtk_drag_set_icon_pixmap (context,
7115                             gdk_drawable_get_colormap (row_pix),
7116                             row_pix,
7117                             NULL,
7118                             /* the + 1 is for the black border in the icon */
7119                             tree_view->priv->press_start_x + 1,
7120                             cell_y + 1);
7121
7122   g_object_unref (row_pix);
7123   gtk_tree_path_free (path);
7124 }
7125
7126 static void
7127 gtk_tree_view_drag_end (GtkWidget      *widget,
7128                         GdkDragContext *context)
7129 {
7130   /* do nothing */
7131 }
7132
7133 /* Default signal implementations for the drag signals */
7134 static void
7135 gtk_tree_view_drag_data_get (GtkWidget        *widget,
7136                              GdkDragContext   *context,
7137                              GtkSelectionData *selection_data,
7138                              guint             info,
7139                              guint             time)
7140 {
7141   GtkTreeView *tree_view;
7142   GtkTreeModel *model;
7143   TreeViewDragInfo *di;
7144   GtkTreePath *source_row;
7145
7146   tree_view = GTK_TREE_VIEW (widget);
7147
7148   model = gtk_tree_view_get_model (tree_view);
7149
7150   if (model == NULL)
7151     return;
7152
7153   di = get_info (GTK_TREE_VIEW (widget));
7154
7155   if (di == NULL)
7156     return;
7157
7158   source_row = get_source_row (context);
7159
7160   if (source_row == NULL)
7161     return;
7162
7163   /* We can implement the GTK_TREE_MODEL_ROW target generically for
7164    * any model; for DragSource models there are some other targets
7165    * we also support.
7166    */
7167
7168   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
7169       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
7170                                           source_row,
7171                                           selection_data))
7172     goto done;
7173
7174   /* If drag_data_get does nothing, try providing row data. */
7175   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7176     {
7177       gtk_tree_set_row_drag_data (selection_data,
7178                                   model,
7179                                   source_row);
7180     }
7181
7182  done:
7183   gtk_tree_path_free (source_row);
7184 }
7185
7186
7187 static void
7188 gtk_tree_view_drag_data_delete (GtkWidget      *widget,
7189                                 GdkDragContext *context)
7190 {
7191   TreeViewDragInfo *di;
7192   GtkTreeModel *model;
7193   GtkTreeView *tree_view;
7194   GtkTreePath *source_row;
7195
7196   tree_view = GTK_TREE_VIEW (widget);
7197   model = gtk_tree_view_get_model (tree_view);
7198
7199   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
7200     return;
7201
7202   di = get_info (tree_view);
7203
7204   if (di == NULL)
7205     return;
7206
7207   source_row = get_source_row (context);
7208
7209   if (source_row == NULL)
7210     return;
7211
7212   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
7213                                          source_row);
7214
7215   gtk_tree_path_free (source_row);
7216
7217   set_source_row (context, NULL, NULL);
7218 }
7219
7220 static void
7221 gtk_tree_view_drag_leave (GtkWidget      *widget,
7222                           GdkDragContext *context,
7223                           guint             time)
7224 {
7225   /* unset any highlight row */
7226   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7227                                    NULL,
7228                                    GTK_TREE_VIEW_DROP_BEFORE);
7229
7230   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7231   remove_open_timeout (GTK_TREE_VIEW (widget));
7232 }
7233
7234
7235 static gboolean
7236 gtk_tree_view_drag_motion (GtkWidget        *widget,
7237                            GdkDragContext   *context,
7238                            /* coordinates relative to the widget */
7239                            gint              x,
7240                            gint              y,
7241                            guint             time)
7242 {
7243   gboolean empty;
7244   GtkTreePath *path = NULL;
7245   GtkTreeViewDropPosition pos;
7246   GtkTreeView *tree_view;
7247   GdkDragAction suggested_action = 0;
7248   GdkAtom target;
7249
7250   tree_view = GTK_TREE_VIEW (widget);
7251
7252   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7253     return FALSE;
7254
7255   gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
7256
7257   /* we only know this *after* set_desination_row */
7258   empty = tree_view->priv->empty_view_drop;
7259
7260   if (path == NULL && !empty)
7261     {
7262       /* Can't drop here. */
7263       gdk_drag_status (context, 0, time);
7264     }
7265   else
7266     {
7267       if (tree_view->priv->open_dest_timeout == 0 &&
7268           (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
7269            pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
7270         {
7271           tree_view->priv->open_dest_timeout =
7272             gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
7273         }
7274       else
7275         {
7276           add_scroll_timeout (tree_view);
7277         }
7278
7279       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
7280         {
7281           /* Request data so we can use the source row when
7282            * determining whether to accept the drop
7283            */
7284           set_status_pending (context, suggested_action);
7285           gtk_drag_get_data (widget, context, target, time);
7286         }
7287       else
7288         {
7289           set_status_pending (context, 0);
7290           gdk_drag_status (context, suggested_action, time);
7291         }
7292     }
7293
7294   if (path)
7295     gtk_tree_path_free (path);
7296
7297   return TRUE;
7298 }
7299
7300
7301 static gboolean
7302 gtk_tree_view_drag_drop (GtkWidget        *widget,
7303                          GdkDragContext   *context,
7304                          /* coordinates relative to the widget */
7305                          gint              x,
7306                          gint              y,
7307                          guint             time)
7308 {
7309   GtkTreeView *tree_view;
7310   GtkTreePath *path;
7311   GdkDragAction suggested_action = 0;
7312   GdkAtom target = GDK_NONE;
7313   TreeViewDragInfo *di;
7314   GtkTreeModel *model;
7315   gboolean path_down_mode;
7316   gboolean drop_append_mode;
7317
7318   tree_view = GTK_TREE_VIEW (widget);
7319
7320   model = gtk_tree_view_get_model (tree_view);
7321
7322   remove_scroll_timeout (GTK_TREE_VIEW (widget));
7323   remove_open_timeout (GTK_TREE_VIEW (widget));
7324
7325   di = get_info (tree_view);
7326
7327   if (di == NULL)
7328     return FALSE;
7329
7330   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
7331     return FALSE;
7332
7333   if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
7334     return FALSE;
7335
7336   path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
7337
7338   if (target != GDK_NONE && path != NULL)
7339     {
7340       /* in case a motion had requested drag data, change things so we
7341        * treat drag data receives as a drop.
7342        */
7343       set_status_pending (context, 0);
7344       set_dest_row (context, model, path,
7345                     path_down_mode, tree_view->priv->empty_view_drop,
7346                     drop_append_mode);
7347     }
7348
7349   if (path)
7350     gtk_tree_path_free (path);
7351
7352   /* Unset this thing */
7353   gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7354                                    NULL,
7355                                    GTK_TREE_VIEW_DROP_BEFORE);
7356
7357   if (target != GDK_NONE)
7358     {
7359       gtk_drag_get_data (widget, context, target, time);
7360       return TRUE;
7361     }
7362   else
7363     return FALSE;
7364 }
7365
7366 static void
7367 gtk_tree_view_drag_data_received (GtkWidget        *widget,
7368                                   GdkDragContext   *context,
7369                                   /* coordinates relative to the widget */
7370                                   gint              x,
7371                                   gint              y,
7372                                   GtkSelectionData *selection_data,
7373                                   guint             info,
7374                                   guint             time)
7375 {
7376   GtkTreePath *path;
7377   TreeViewDragInfo *di;
7378   gboolean accepted = FALSE;
7379   GtkTreeModel *model;
7380   GtkTreeView *tree_view;
7381   GtkTreePath *dest_row;
7382   GdkDragAction suggested_action;
7383   gboolean path_down_mode;
7384   gboolean drop_append_mode;
7385
7386   tree_view = GTK_TREE_VIEW (widget);
7387
7388   model = gtk_tree_view_get_model (tree_view);
7389
7390   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
7391     return;
7392
7393   di = get_info (tree_view);
7394
7395   if (di == NULL)
7396     return;
7397
7398   suggested_action = get_status_pending (context);
7399
7400   if (suggested_action)
7401     {
7402       /* We are getting this data due to a request in drag_motion,
7403        * rather than due to a request in drag_drop, so we are just
7404        * supposed to call drag_status, not actually paste in the
7405        * data.
7406        */
7407       path = get_logical_dest_row (tree_view, &path_down_mode,
7408                                    &drop_append_mode);
7409
7410       if (path == NULL)
7411         suggested_action = 0;
7412       else if (path_down_mode)
7413         gtk_tree_path_down (path);
7414
7415       if (suggested_action)
7416         {
7417           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7418                                                      path,
7419                                                      selection_data))
7420             {
7421               if (path_down_mode)
7422                 {
7423                   path_down_mode = FALSE;
7424                   gtk_tree_path_up (path);
7425
7426                   if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7427                                                              path,
7428                                                              selection_data))
7429                     suggested_action = 0;
7430                 }
7431               else
7432                 suggested_action = 0;
7433             }
7434         }
7435
7436       gdk_drag_status (context, suggested_action, time);
7437
7438       if (path)
7439         gtk_tree_path_free (path);
7440
7441       /* If you can't drop, remove user drop indicator until the next motion */
7442       if (suggested_action == 0)
7443         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
7444                                          NULL,
7445                                          GTK_TREE_VIEW_DROP_BEFORE);
7446
7447       return;
7448     }
7449
7450   dest_row = get_dest_row (context, &path_down_mode);
7451
7452   if (dest_row == NULL)
7453     return;
7454
7455   if (selection_data->length >= 0)
7456     {
7457       if (path_down_mode)
7458         {
7459           gtk_tree_path_down (dest_row);
7460           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
7461                                                      dest_row, selection_data))
7462             gtk_tree_path_up (dest_row);
7463         }
7464     }
7465
7466   if (selection_data->length >= 0)
7467     {
7468       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
7469                                                  dest_row,
7470                                                  selection_data))
7471         accepted = TRUE;
7472     }
7473
7474   gtk_drag_finish (context,
7475                    accepted,
7476                    (context->action == GDK_ACTION_MOVE),
7477                    time);
7478
7479   if (gtk_tree_path_get_depth (dest_row) == 1
7480       && gtk_tree_path_get_indices (dest_row)[0] == 0)
7481     {
7482       /* special special case drag to "0", scroll to first item */
7483       if (!tree_view->priv->scroll_to_path)
7484         gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
7485     }
7486
7487   gtk_tree_path_free (dest_row);
7488
7489   /* drop dest_row */
7490   set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
7491 }
7492
7493
7494
7495 /* GtkContainer Methods
7496  */
7497
7498
7499 static void
7500 gtk_tree_view_remove (GtkContainer *container,
7501                       GtkWidget    *widget)
7502 {
7503   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7504   GtkTreeViewChild *child = NULL;
7505   GList *tmp_list;
7506
7507   tmp_list = tree_view->priv->children;
7508   while (tmp_list)
7509     {
7510       child = tmp_list->data;
7511       if (child->widget == widget)
7512         {
7513           gtk_widget_unparent (widget);
7514
7515           tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
7516           g_list_free_1 (tmp_list);
7517           g_slice_free (GtkTreeViewChild, child);
7518           return;
7519         }
7520
7521       tmp_list = tmp_list->next;
7522     }
7523
7524   tmp_list = tree_view->priv->columns;
7525
7526   while (tmp_list)
7527     {
7528       GtkTreeViewColumn *column;
7529       column = tmp_list->data;
7530       if (column->button == widget)
7531         {
7532           gtk_widget_unparent (widget);
7533           return;
7534         }
7535       tmp_list = tmp_list->next;
7536     }
7537 }
7538
7539 static void
7540 gtk_tree_view_forall (GtkContainer *container,
7541                       gboolean      include_internals,
7542                       GtkCallback   callback,
7543                       gpointer      callback_data)
7544 {
7545   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7546   GtkTreeViewChild *child = NULL;
7547   GtkTreeViewColumn *column;
7548   GList *tmp_list;
7549
7550   tmp_list = tree_view->priv->children;
7551   while (tmp_list)
7552     {
7553       child = tmp_list->data;
7554       tmp_list = tmp_list->next;
7555
7556       (* callback) (child->widget, callback_data);
7557     }
7558   if (include_internals == FALSE)
7559     return;
7560
7561   for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7562     {
7563       column = tmp_list->data;
7564
7565       if (column->button)
7566         (* callback) (column->button, callback_data);
7567     }
7568 }
7569
7570 /* Returns TRUE if the treeview contains no "special" (editable or activatable)
7571  * cells. If so we draw one big row-spanning focus rectangle.
7572  */
7573 static gboolean
7574 gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
7575 {
7576   GList *list;
7577
7578   for (list = tree_view->priv->columns; list; list = list->next)
7579     {
7580       if (!((GtkTreeViewColumn *)list->data)->visible)
7581         continue;
7582       if (_gtk_tree_view_column_count_special_cells (list->data))
7583         return TRUE;
7584     }
7585
7586   return FALSE;
7587 }
7588
7589 static void
7590 column_sizing_notify (GObject    *object,
7591                       GParamSpec *pspec,
7592                       gpointer    data)
7593 {
7594   GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
7595
7596   if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
7597     /* disable fixed height mode */
7598     g_object_set (data, "fixed-height-mode", FALSE, NULL);
7599 }
7600
7601 /**
7602  * gtk_tree_view_set_fixed_height_mode:
7603  * @tree_view: a #GtkTreeView
7604  * @enable: %TRUE to enable fixed height mode
7605  *
7606  * Enables or disables the fixed height mode of @tree_view.
7607  * Fixed height mode speeds up #GtkTreeView by assuming that all
7608  * rows have the same height.
7609  * Only enable this option if all rows are the same height and all
7610  * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
7611  *
7612  * Since: 2.6
7613  **/
7614 void
7615 gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
7616                                      gboolean     enable)
7617 {
7618   GList *l;
7619
7620   enable = enable != FALSE;
7621
7622   if (enable == tree_view->priv->fixed_height_mode)
7623     return;
7624
7625   if (!enable)
7626     {
7627       tree_view->priv->fixed_height_mode = 0;
7628       tree_view->priv->fixed_height = -1;
7629
7630       /* force a revalidation */
7631       install_presize_handler (tree_view);
7632     }
7633   else
7634     {
7635       /* make sure all columns are of type FIXED */
7636       for (l = tree_view->priv->columns; l; l = l->next)
7637         {
7638           GtkTreeViewColumn *c = l->data;
7639
7640           g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
7641         }
7642
7643       /* yes, we really have to do this is in a separate loop */
7644       for (l = tree_view->priv->columns; l; l = l->next)
7645         g_signal_connect (l->data, "notify::sizing",
7646                           G_CALLBACK (column_sizing_notify), tree_view);
7647
7648       tree_view->priv->fixed_height_mode = 1;
7649       tree_view->priv->fixed_height = -1;
7650
7651       if (tree_view->priv->tree)
7652         initialize_fixed_height_mode (tree_view);
7653     }
7654
7655   g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
7656 }
7657
7658 /**
7659  * gtk_tree_view_get_fixed_height_mode:
7660  * @tree_view: a #GtkTreeView
7661  *
7662  * Returns whether fixed height mode is turned on for @tree_view.
7663  *
7664  * Return value: %TRUE if @tree_view is in fixed height mode
7665  *
7666  * Since: 2.6
7667  **/
7668 gboolean
7669 gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
7670 {
7671   return tree_view->priv->fixed_height_mode;
7672 }
7673
7674 /* Returns TRUE if the focus is within the headers, after the focus operation is
7675  * done
7676  */
7677 static gboolean
7678 gtk_tree_view_header_focus (GtkTreeView      *tree_view,
7679                             GtkDirectionType  dir,
7680                             gboolean          clamp_column_visible)
7681 {
7682   GtkWidget *focus_child;
7683
7684   GList *last_column, *first_column;
7685   GList *tmp_list;
7686   gboolean rtl;
7687
7688   if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
7689     return FALSE;
7690
7691   focus_child = GTK_CONTAINER (tree_view)->focus_child;
7692
7693   first_column = tree_view->priv->columns;
7694   while (first_column)
7695     {
7696       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
7697           GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
7698           (GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
7699            GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
7700         break;
7701       first_column = first_column->next;
7702     }
7703
7704   /* No headers are visible, or are focusable.  We can't focus in or out.
7705    */
7706   if (first_column == NULL)
7707     return FALSE;
7708
7709   last_column = g_list_last (tree_view->priv->columns);
7710   while (last_column)
7711     {
7712       if (GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
7713           GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
7714           (GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
7715            GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
7716         break;
7717       last_column = last_column->prev;
7718     }
7719
7720
7721   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
7722
7723   switch (dir)
7724     {
7725     case GTK_DIR_TAB_BACKWARD:
7726     case GTK_DIR_TAB_FORWARD:
7727     case GTK_DIR_UP:
7728     case GTK_DIR_DOWN:
7729       if (focus_child == NULL)
7730         {
7731           if (tree_view->priv->focus_column != NULL && GTK_WIDGET_CAN_FOCUS (tree_view->priv->focus_column->button))
7732             focus_child = tree_view->priv->focus_column->button;
7733           else
7734             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7735           gtk_widget_grab_focus (focus_child);
7736           break;
7737         }
7738       return FALSE;
7739
7740     case GTK_DIR_LEFT:
7741     case GTK_DIR_RIGHT:
7742       if (focus_child == NULL)
7743         {
7744           if (tree_view->priv->focus_column != NULL)
7745             focus_child = tree_view->priv->focus_column->button;
7746           else if (dir == GTK_DIR_LEFT)
7747             focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
7748           else
7749             focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
7750           gtk_widget_grab_focus (focus_child);
7751           break;
7752         }
7753
7754       if (gtk_widget_child_focus (focus_child, dir))
7755         {
7756           /* The focus moves inside the button. */
7757           /* This is probably a great example of bad UI */
7758           break;
7759         }
7760
7761       /* We need to move the focus among the row of buttons. */
7762       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7763         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7764           break;
7765
7766       if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
7767           || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
7768         {
7769           gtk_widget_error_bell (GTK_WIDGET (tree_view));
7770           break;
7771         }
7772
7773       while (tmp_list)
7774         {
7775           GtkTreeViewColumn *column;
7776
7777           if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
7778             tmp_list = tmp_list->next;
7779           else
7780             tmp_list = tmp_list->prev;
7781
7782           if (tmp_list == NULL)
7783             {
7784               g_warning ("Internal button not found");
7785               break;
7786             }
7787           column = tmp_list->data;
7788           if (column->button &&
7789               column->visible &&
7790               GTK_WIDGET_CAN_FOCUS (column->button))
7791             {
7792               focus_child = column->button;
7793               gtk_widget_grab_focus (column->button);
7794               break;
7795             }
7796         }
7797       break;
7798     default:
7799       g_assert_not_reached ();
7800       break;
7801     }
7802
7803   /* if focus child is non-null, we assume it's been set to the current focus child
7804    */
7805   if (focus_child)
7806     {
7807       for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
7808         if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
7809           {
7810             tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
7811             break;
7812           }
7813
7814       if (clamp_column_visible)
7815         {
7816           gtk_tree_view_clamp_column_visible (tree_view,
7817                                               tree_view->priv->focus_column,
7818                                               FALSE);
7819         }
7820     }
7821
7822   return (focus_child != NULL);
7823 }
7824
7825 /* This function returns in 'path' the first focusable path, if the given path
7826  * is already focusable, it's the returned one.
7827  */
7828 static gboolean
7829 search_first_focusable_path (GtkTreeView  *tree_view,
7830                              GtkTreePath **path,
7831                              gboolean      search_forward,
7832                              GtkRBTree   **new_tree,
7833                              GtkRBNode   **new_node)
7834 {
7835   GtkRBTree *tree = NULL;
7836   GtkRBNode *node = NULL;
7837
7838   if (!path || !*path)
7839     return FALSE;
7840
7841   _gtk_tree_view_find_node (tree_view, *path, &tree, &node);
7842
7843   if (!tree || !node)
7844     return FALSE;
7845
7846   while (node && row_is_separator (tree_view, NULL, *path))
7847     {
7848       if (search_forward)
7849         _gtk_rbtree_next_full (tree, node, &tree, &node);
7850       else
7851         _gtk_rbtree_prev_full (tree, node, &tree, &node);
7852
7853       if (*path)
7854         gtk_tree_path_free (*path);
7855
7856       if (node)
7857         *path = _gtk_tree_view_find_path (tree_view, tree, node);
7858       else
7859         *path = NULL;
7860     }
7861
7862   if (new_tree)
7863     *new_tree = tree;
7864
7865   if (new_node)
7866     *new_node = node;
7867
7868   return (*path != NULL);
7869 }
7870
7871 static gint
7872 gtk_tree_view_focus (GtkWidget        *widget,
7873                      GtkDirectionType  direction)
7874 {
7875   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7876   GtkContainer *container = GTK_CONTAINER (widget);
7877   GtkWidget *focus_child;
7878
7879   if (!GTK_WIDGET_IS_SENSITIVE (container) || !GTK_WIDGET_CAN_FOCUS (widget))
7880     return FALSE;
7881
7882   focus_child = container->focus_child;
7883
7884   gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
7885   /* Case 1.  Headers currently have focus. */
7886   if (focus_child)
7887     {
7888       switch (direction)
7889         {
7890         case GTK_DIR_LEFT:
7891         case GTK_DIR_RIGHT:
7892           gtk_tree_view_header_focus (tree_view, direction, TRUE);
7893           return TRUE;
7894         case GTK_DIR_TAB_BACKWARD:
7895         case GTK_DIR_UP:
7896           return FALSE;
7897         case GTK_DIR_TAB_FORWARD:
7898         case GTK_DIR_DOWN:
7899           gtk_widget_grab_focus (widget);
7900           return TRUE;
7901         default:
7902           g_assert_not_reached ();
7903           return FALSE;
7904         }
7905     }
7906
7907   /* Case 2. We don't have focus at all. */
7908   if (!GTK_WIDGET_HAS_FOCUS (container))
7909     {
7910       if (!gtk_tree_view_header_focus (tree_view, direction, FALSE))
7911         gtk_widget_grab_focus (widget);
7912       return TRUE;
7913     }
7914
7915   /* Case 3. We have focus already. */
7916   if (direction == GTK_DIR_TAB_BACKWARD)
7917     return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
7918   else if (direction == GTK_DIR_TAB_FORWARD)
7919     return FALSE;
7920
7921   /* Other directions caught by the keybindings */
7922   gtk_widget_grab_focus (widget);
7923   return TRUE;
7924 }
7925
7926 static void
7927 gtk_tree_view_grab_focus (GtkWidget *widget)
7928 {
7929   GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
7930
7931   gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
7932 }
7933
7934 static void
7935 gtk_tree_view_style_set (GtkWidget *widget,
7936                          GtkStyle *previous_style)
7937 {
7938   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
7939   GList *list;
7940   GtkTreeViewColumn *column;
7941
7942   if (GTK_WIDGET_REALIZED (widget))
7943     {
7944       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
7945       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
7946       gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
7947
7948       gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
7949       gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
7950     }
7951
7952   gtk_widget_style_get (widget,
7953                         "expander-size", &tree_view->priv->expander_size,
7954                         NULL);
7955   tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
7956
7957   for (list = tree_view->priv->columns; list; list = list->next)
7958     {
7959       column = list->data;
7960       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
7961     }
7962
7963   tree_view->priv->fixed_height = -1;
7964   _gtk_rbtree_mark_invalid (tree_view->priv->tree);
7965
7966   gtk_widget_queue_resize (widget);
7967 }
7968
7969
7970 static void
7971 gtk_tree_view_set_focus_child (GtkContainer *container,
7972                                GtkWidget    *child)
7973 {
7974   GtkTreeView *tree_view = GTK_TREE_VIEW (container);
7975   GList *list;
7976
7977   for (list = tree_view->priv->columns; list; list = list->next)
7978     {
7979       if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
7980         {
7981           tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
7982           break;
7983         }
7984     }
7985
7986   GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
7987 }
7988
7989 static void
7990 gtk_tree_view_set_adjustments (GtkTreeView   *tree_view,
7991                                GtkAdjustment *hadj,
7992                                GtkAdjustment *vadj)
7993 {
7994   gboolean need_adjust = FALSE;
7995
7996   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
7997
7998   if (hadj)
7999     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
8000   else
8001     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8002   if (vadj)
8003     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
8004   else
8005     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
8006
8007   if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
8008     {
8009       g_signal_handlers_disconnect_by_func (tree_view->priv->hadjustment,
8010                                             gtk_tree_view_adjustment_changed,
8011                                             tree_view);
8012       g_object_unref (tree_view->priv->hadjustment);
8013     }
8014
8015   if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
8016     {
8017       g_signal_handlers_disconnect_by_func (tree_view->priv->vadjustment,
8018                                             gtk_tree_view_adjustment_changed,
8019                                             tree_view);
8020       g_object_unref (tree_view->priv->vadjustment);
8021     }
8022
8023   if (tree_view->priv->hadjustment != hadj)
8024     {
8025       tree_view->priv->hadjustment = hadj;
8026       g_object_ref_sink (tree_view->priv->hadjustment);
8027
8028       g_signal_connect (tree_view->priv->hadjustment, "value-changed",
8029                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8030                         tree_view);
8031       need_adjust = TRUE;
8032     }
8033
8034   if (tree_view->priv->vadjustment != vadj)
8035     {
8036       tree_view->priv->vadjustment = vadj;
8037       g_object_ref_sink (tree_view->priv->vadjustment);
8038
8039       g_signal_connect (tree_view->priv->vadjustment, "value-changed",
8040                         G_CALLBACK (gtk_tree_view_adjustment_changed),
8041                         tree_view);
8042       need_adjust = TRUE;
8043     }
8044
8045   if (need_adjust)
8046     gtk_tree_view_adjustment_changed (NULL, tree_view);
8047 }
8048
8049
8050 static gboolean
8051 gtk_tree_view_real_move_cursor (GtkTreeView       *tree_view,
8052                                 GtkMovementStep    step,
8053                                 gint               count)
8054 {
8055   GdkModifierType state;
8056
8057   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
8058   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
8059                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
8060                         step == GTK_MOVEMENT_DISPLAY_LINES ||
8061                         step == GTK_MOVEMENT_PAGES ||
8062                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
8063
8064   if (tree_view->priv->tree == NULL)
8065     return FALSE;
8066   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (tree_view)))
8067     return FALSE;
8068
8069   gtk_tree_view_stop_editing (tree_view, FALSE);
8070   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
8071   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
8072
8073   if (gtk_get_current_event_state (&state))
8074     {
8075       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
8076         tree_view->priv->ctrl_pressed = TRUE;
8077       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
8078         tree_view->priv->shift_pressed = TRUE;
8079     }
8080   /* else we assume not pressed */
8081
8082   switch (step)
8083     {
8084       /* currently we make no distinction.  When we go bi-di, we need to */
8085     case GTK_MOVEMENT_LOGICAL_POSITIONS:
8086     case GTK_MOVEMENT_VISUAL_POSITIONS:
8087       gtk_tree_view_move_cursor_left_right (tree_view, count);
8088       break;
8089     case GTK_MOVEMENT_DISPLAY_LINES:
8090       gtk_tree_view_move_cursor_up_down (tree_view, count);
8091       break;
8092     case GTK_MOVEMENT_PAGES:
8093       gtk_tree_view_move_cursor_page_up_down (tree_view, count);
8094       break;
8095     case GTK_MOVEMENT_BUFFER_ENDS:
8096       gtk_tree_view_move_cursor_start_end (tree_view, count);
8097       break;
8098     default:
8099       g_assert_not_reached ();
8100     }
8101
8102   tree_view->priv->ctrl_pressed = FALSE;
8103   tree_view->priv->shift_pressed = FALSE;
8104
8105   return TRUE;
8106 }
8107
8108 static void
8109 gtk_tree_view_put (GtkTreeView *tree_view,
8110                    GtkWidget   *child_widget,
8111                    /* in bin_window coordinates */
8112                    gint         x,
8113                    gint         y,
8114                    gint         width,
8115                    gint         height)
8116 {
8117   GtkTreeViewChild *child;
8118
8119   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8120   g_return_if_fail (GTK_IS_WIDGET (child_widget));
8121
8122   child = g_slice_new (GtkTreeViewChild);
8123
8124   child->widget = child_widget;
8125   child->x = x;
8126   child->y = y;
8127   child->width = width;
8128   child->height = height;
8129
8130   tree_view->priv->children = g_list_append (tree_view->priv->children, child);
8131
8132   if (GTK_WIDGET_REALIZED (tree_view))
8133     gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
8134
8135   gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
8136 }
8137
8138 void
8139 _gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
8140                                   GtkWidget   *widget,
8141                                   /* in tree coordinates */
8142                                   gint         x,
8143                                   gint         y,
8144                                   gint         width,
8145                                   gint         height)
8146 {
8147   GtkTreeViewChild *child = NULL;
8148   GList *list;
8149   GdkRectangle allocation;
8150
8151   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
8152   g_return_if_fail (GTK_IS_WIDGET (widget));
8153
8154   for (list = tree_view->priv->children; list; list = list->next)
8155     {
8156       if (((GtkTreeViewChild *)list->data)->widget == widget)
8157         {
8158           child = list->data;
8159           break;
8160         }
8161     }
8162   if (child == NULL)
8163     return;
8164
8165   allocation.x = child->x = x;
8166   allocation.y = child->y = y;
8167   allocation.width = child->width = width;
8168   allocation.height = child->height = height;
8169
8170   if (GTK_WIDGET_REALIZED (widget))
8171     gtk_widget_size_allocate (widget, &allocation);
8172 }
8173
8174
8175 /* TreeModel Callbacks
8176  */
8177
8178 static void
8179 gtk_tree_view_row_changed (GtkTreeModel *model,
8180                            GtkTreePath  *path,
8181                            GtkTreeIter  *iter,
8182                            gpointer      data)
8183 {
8184   GtkTreeView *tree_view = (GtkTreeView *)data;
8185   GtkRBTree *tree;
8186   GtkRBNode *node;
8187   gboolean free_path = FALSE;
8188   GList *list;
8189   GtkTreePath *cursor_path;
8190
8191   g_return_if_fail (path != NULL || iter != NULL);
8192
8193   if (tree_view->priv->cursor != NULL)
8194     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8195   else
8196     cursor_path = NULL;
8197
8198   if (tree_view->priv->edited_column &&
8199       (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
8200     gtk_tree_view_stop_editing (tree_view, TRUE);
8201
8202   if (cursor_path != NULL)
8203     gtk_tree_path_free (cursor_path);
8204
8205   if (path == NULL)
8206     {
8207       path = gtk_tree_model_get_path (model, iter);
8208       free_path = TRUE;
8209     }
8210   else if (iter == NULL)
8211     gtk_tree_model_get_iter (model, iter, path);
8212
8213   if (_gtk_tree_view_find_node (tree_view,
8214                                 path,
8215                                 &tree,
8216                                 &node))
8217     /* We aren't actually showing the node */
8218     goto done;
8219
8220   if (tree == NULL)
8221     goto done;
8222
8223   if (tree_view->priv->fixed_height_mode
8224       && tree_view->priv->fixed_height >= 0)
8225     {
8226       _gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
8227       if (GTK_WIDGET_REALIZED (tree_view))
8228         gtk_tree_view_node_queue_redraw (tree_view, tree, node);
8229     }
8230   else
8231     {
8232       _gtk_rbtree_node_mark_invalid (tree, node);
8233       for (list = tree_view->priv->columns; list; list = list->next)
8234         {
8235           GtkTreeViewColumn *column;
8236
8237           column = list->data;
8238           if (! column->visible)
8239             continue;
8240
8241           if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8242             {
8243               _gtk_tree_view_column_cell_set_dirty (column, TRUE);
8244             }
8245         }
8246     }
8247
8248  done:
8249   if (GTK_WIDGET_REALIZED (tree_view) && !tree_view->priv->fixed_height_mode)
8250     install_presize_handler (tree_view);
8251   if (free_path)
8252     gtk_tree_path_free (path);
8253 }
8254
8255 static void
8256 gtk_tree_view_row_inserted (GtkTreeModel *model,
8257                             GtkTreePath  *path,
8258                             GtkTreeIter  *iter,
8259                             gpointer      data)
8260 {
8261   GtkTreeView *tree_view = (GtkTreeView *) data;
8262   gint *indices;
8263   GtkRBTree *tmptree, *tree;
8264   GtkRBNode *tmpnode = NULL;
8265   gint depth;
8266   gint i = 0;
8267   gint height;
8268   gboolean free_path = FALSE;
8269   gboolean node_visible = TRUE;
8270
8271   g_return_if_fail (path != NULL || iter != NULL);
8272
8273   if (tree_view->priv->fixed_height_mode
8274       && tree_view->priv->fixed_height >= 0)
8275     height = tree_view->priv->fixed_height;
8276   else
8277     height = 0;
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 (tree_view->priv->tree == NULL)
8288     tree_view->priv->tree = _gtk_rbtree_new ();
8289
8290   tmptree = tree = tree_view->priv->tree;
8291
8292   /* Update all row-references */
8293   gtk_tree_row_reference_inserted (G_OBJECT (data), path);
8294   depth = gtk_tree_path_get_depth (path);
8295   indices = gtk_tree_path_get_indices (path);
8296
8297   /* First, find the parent tree */
8298   while (i < depth - 1)
8299     {
8300       if (tmptree == NULL)
8301         {
8302           /* We aren't showing the node */
8303           node_visible = FALSE;
8304           goto done;
8305         }
8306
8307       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8308       if (tmpnode == NULL)
8309         {
8310           g_warning ("A node was inserted with a parent that's not in the tree.\n" \
8311                      "This possibly means that a GtkTreeModel inserted a child node\n" \
8312                      "before the parent was inserted.");
8313           goto done;
8314         }
8315       else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
8316         {
8317           /* FIXME enforce correct behavior on model, probably */
8318           /* In theory, the model should have emitted has_child_toggled here.  We
8319            * try to catch it anyway, just to be safe, in case the model hasn't.
8320            */
8321           GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
8322                                                            tree,
8323                                                            tmpnode);
8324           gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
8325           gtk_tree_path_free (tmppath);
8326           goto done;
8327         }
8328
8329       tmptree = tmpnode->children;
8330       tree = tmptree;
8331       i++;
8332     }
8333
8334   if (tree == NULL)
8335     {
8336       node_visible = FALSE;
8337       goto done;
8338     }
8339
8340   /* ref the node */
8341   gtk_tree_model_ref_node (tree_view->priv->model, iter);
8342   if (indices[depth - 1] == 0)
8343     {
8344       tmpnode = _gtk_rbtree_find_count (tree, 1);
8345       tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
8346     }
8347   else
8348     {
8349       tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
8350       tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
8351     }
8352
8353  done:
8354   if (height > 0)
8355     {
8356       if (tree)
8357         _gtk_rbtree_node_mark_valid (tree, tmpnode);
8358
8359       if (node_visible && node_is_visible (tree_view, tree, tmpnode))
8360         gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8361       else
8362         gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
8363     }
8364   else
8365     install_presize_handler (tree_view);
8366   if (free_path)
8367     gtk_tree_path_free (path);
8368 }
8369
8370 static void
8371 gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
8372                                      GtkTreePath  *path,
8373                                      GtkTreeIter  *iter,
8374                                      gpointer      data)
8375 {
8376   GtkTreeView *tree_view = (GtkTreeView *)data;
8377   GtkTreeIter real_iter;
8378   gboolean has_child;
8379   GtkRBTree *tree;
8380   GtkRBNode *node;
8381   gboolean free_path = FALSE;
8382
8383   g_return_if_fail (path != NULL || iter != NULL);
8384
8385   if (iter)
8386     real_iter = *iter;
8387
8388   if (path == NULL)
8389     {
8390       path = gtk_tree_model_get_path (model, iter);
8391       free_path = TRUE;
8392     }
8393   else if (iter == NULL)
8394     gtk_tree_model_get_iter (model, &real_iter, path);
8395
8396   if (_gtk_tree_view_find_node (tree_view,
8397                                 path,
8398                                 &tree,
8399                                 &node))
8400     /* We aren't actually showing the node */
8401     goto done;
8402
8403   if (tree == NULL)
8404     goto done;
8405
8406   has_child = gtk_tree_model_iter_has_child (model, &real_iter);
8407   /* Sanity check.
8408    */
8409   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
8410     goto done;
8411
8412   if (has_child)
8413     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
8414   else
8415     GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
8416
8417   if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8418     {
8419       GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
8420       if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
8421         {
8422           GList *list;
8423
8424           for (list = tree_view->priv->columns; list; list = list->next)
8425             if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
8426               {
8427                 GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
8428                 _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
8429                 break;
8430               }
8431         }
8432       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8433     }
8434   else
8435     {
8436       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
8437     }
8438
8439  done:
8440   if (free_path)
8441     gtk_tree_path_free (path);
8442 }
8443
8444 static void
8445 count_children_helper (GtkRBTree *tree,
8446                        GtkRBNode *node,
8447                        gpointer   data)
8448 {
8449   if (node->children)
8450     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
8451   (*((gint *)data))++;
8452 }
8453
8454 static void
8455 check_selection_helper (GtkRBTree *tree,
8456                         GtkRBNode *node,
8457                         gpointer   data)
8458 {
8459   gint *value = (gint *)data;
8460
8461   *value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
8462
8463   if (node->children && !*value)
8464     _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
8465 }
8466
8467 static void
8468 gtk_tree_view_row_deleted (GtkTreeModel *model,
8469                            GtkTreePath  *path,
8470                            gpointer      data)
8471 {
8472   GtkTreeView *tree_view = (GtkTreeView *)data;
8473   GtkRBTree *tree;
8474   GtkRBNode *node;
8475   GList *list;
8476   gint selection_changed = FALSE;
8477
8478   g_return_if_fail (path != NULL);
8479
8480   gtk_tree_row_reference_deleted (G_OBJECT (data), path);
8481
8482   if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
8483     return;
8484
8485   if (tree == NULL)
8486     return;
8487
8488   /* check if the selection has been changed */
8489   _gtk_rbtree_traverse (tree, node, G_POST_ORDER,
8490                         check_selection_helper, &selection_changed);
8491
8492   for (list = tree_view->priv->columns; list; list = list->next)
8493     if (((GtkTreeViewColumn *)list->data)->visible &&
8494         ((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
8495       _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
8496
8497   /* Ensure we don't have a dangling pointer to a dead node */
8498   ensure_unprelighted (tree_view);
8499
8500   /* Cancel editting if we've started */
8501   gtk_tree_view_stop_editing (tree_view, TRUE);
8502
8503   /* If we have a node expanded/collapsed timeout, remove it */
8504   remove_expand_collapse_timeout (tree_view);
8505
8506   if (tree_view->priv->destroy_count_func)
8507     {
8508       gint child_count = 0;
8509       if (node->children)
8510         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
8511       tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
8512     }
8513
8514   if (tree->root->count == 1)
8515     {
8516       if (tree_view->priv->tree == tree)
8517         tree_view->priv->tree = NULL;
8518
8519       _gtk_rbtree_remove (tree);
8520     }
8521   else
8522     {
8523       _gtk_rbtree_remove_node (tree, node);
8524     }
8525
8526   if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
8527     {
8528       gtk_tree_row_reference_free (tree_view->priv->top_row);
8529       tree_view->priv->top_row = NULL;
8530     }
8531
8532   install_scroll_sync_handler (tree_view);
8533
8534   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
8535
8536   if (selection_changed)
8537     g_signal_emit_by_name (tree_view->priv->selection, "changed");
8538 }
8539
8540 static void
8541 gtk_tree_view_rows_reordered (GtkTreeModel *model,
8542                               GtkTreePath  *parent,
8543                               GtkTreeIter  *iter,
8544                               gint         *new_order,
8545                               gpointer      data)
8546 {
8547   GtkTreeView *tree_view = GTK_TREE_VIEW (data);
8548   GtkRBTree *tree;
8549   GtkRBNode *node;
8550   gint len;
8551
8552   len = gtk_tree_model_iter_n_children (model, iter);
8553
8554   if (len < 2)
8555     return;
8556
8557   gtk_tree_row_reference_reordered (G_OBJECT (data),
8558                                     parent,
8559                                     iter,
8560                                     new_order);
8561
8562   if (_gtk_tree_view_find_node (tree_view,
8563                                 parent,
8564                                 &tree,
8565                                 &node))
8566     return;
8567
8568   /* We need to special case the parent path */
8569   if (tree == NULL)
8570     tree = tree_view->priv->tree;
8571   else
8572     tree = node->children;
8573
8574   if (tree == NULL)
8575     return;
8576
8577   if (tree_view->priv->edited_column)
8578     gtk_tree_view_stop_editing (tree_view, TRUE);
8579
8580   /* we need to be unprelighted */
8581   ensure_unprelighted (tree_view);
8582
8583   /* clear the timeout */
8584   cancel_arrow_animation (tree_view);
8585
8586   _gtk_rbtree_reorder (tree, new_order, len);
8587
8588   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
8589
8590   gtk_tree_view_dy_to_top_row (tree_view);
8591 }
8592
8593
8594 /* Internal tree functions
8595  */
8596
8597
8598 static void
8599 gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
8600                                      GtkRBTree         *tree,
8601                                      GtkTreeViewColumn *column,
8602                                      gint              *x1,
8603                                      gint              *x2)
8604 {
8605   GtkTreeViewColumn *tmp_column = NULL;
8606   gint total_width;
8607   GList *list;
8608   gboolean rtl;
8609
8610   if (x1)
8611     *x1 = 0;
8612
8613   if (x2)
8614     *x2 = 0;
8615
8616   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8617
8618   total_width = 0;
8619   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8620        list;
8621        list = (rtl ? list->prev : list->next))
8622     {
8623       tmp_column = list->data;
8624
8625       if (tmp_column == column)
8626         break;
8627
8628       if (tmp_column->visible)
8629         total_width += tmp_column->width;
8630     }
8631
8632   if (tmp_column != column)
8633     {
8634       g_warning (G_STRLOC": passed-in column isn't in the tree");
8635       return;
8636     }
8637
8638   if (x1)
8639     *x1 = total_width;
8640
8641   if (x2)
8642     {
8643       if (column->visible)
8644         *x2 = total_width + column->width;
8645       else
8646         *x2 = total_width; /* width of 0 */
8647     }
8648 }
8649 static void
8650 gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
8651                                 GtkRBTree   *tree,
8652                                 gint        *x1,
8653                                 gint        *x2)
8654 {
8655   gint x_offset = 0;
8656   GList *list;
8657   GtkTreeViewColumn *tmp_column = NULL;
8658   gint total_width;
8659   gboolean indent_expanders;
8660   gboolean rtl;
8661
8662   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
8663
8664   total_width = 0;
8665   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
8666        list;
8667        list = (rtl ? list->prev : list->next))
8668     {
8669       tmp_column = list->data;
8670
8671       if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
8672         {
8673           if (rtl)
8674             x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
8675           else
8676             x_offset = total_width;
8677           break;
8678         }
8679
8680       if (tmp_column->visible)
8681         total_width += tmp_column->width;
8682     }
8683
8684   gtk_widget_style_get (GTK_WIDGET (tree_view),
8685                         "indent-expanders", &indent_expanders,
8686                         NULL);
8687
8688   if (indent_expanders)
8689     {
8690       if (rtl)
8691         x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8692       else
8693         x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
8694     }
8695
8696   *x1 = x_offset;
8697
8698   if (tmp_column && tmp_column->visible)
8699     /* +1 because x2 isn't included in the range. */
8700     *x2 = *x1 + tree_view->priv->expander_size + 1;
8701   else
8702     *x2 = *x1;
8703 }
8704
8705 static void
8706 gtk_tree_view_build_tree (GtkTreeView *tree_view,
8707                           GtkRBTree   *tree,
8708                           GtkTreeIter *iter,
8709                           gint         depth,
8710                           gboolean     recurse)
8711 {
8712   GtkRBNode *temp = NULL;
8713   GtkTreePath *path = NULL;
8714   gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
8715
8716   do
8717     {
8718       gtk_tree_model_ref_node (tree_view->priv->model, iter);
8719       temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
8720
8721       if (tree_view->priv->fixed_height > 0)
8722         {
8723           if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
8724             {
8725               _gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
8726               _gtk_rbtree_node_mark_valid (tree, temp);
8727             }
8728         }
8729
8730       if (is_list)
8731         continue;
8732
8733       if (recurse)
8734         {
8735           GtkTreeIter child;
8736
8737           if (!path)
8738             path = gtk_tree_model_get_path (tree_view->priv->model, iter);
8739           else
8740             gtk_tree_path_next (path);
8741
8742           if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
8743             {
8744               gboolean expand;
8745
8746               g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
8747
8748               if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
8749                   && !expand)
8750                 {
8751                   temp->children = _gtk_rbtree_new ();
8752                   temp->children->parent_tree = tree;
8753                   temp->children->parent_node = temp;
8754                   gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
8755                 }
8756             }
8757         }
8758
8759       if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
8760         {
8761           if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
8762             temp->flags ^= GTK_RBNODE_IS_PARENT;
8763         }
8764     }
8765   while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
8766
8767   if (path)
8768     gtk_tree_path_free (path);
8769 }
8770
8771 /* Make sure the node is visible vertically */
8772 static void
8773 gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
8774                                   GtkRBTree   *tree,
8775                                   GtkRBNode   *node)
8776 {
8777   gint node_dy, height;
8778   GtkTreePath *path = NULL;
8779
8780   if (!GTK_WIDGET_REALIZED (tree_view))
8781     return;
8782
8783   /* just return if the node is visible, avoiding a costly expose */
8784   node_dy = _gtk_rbtree_node_find_offset (tree, node);
8785   height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
8786   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
8787       && node_dy >= tree_view->priv->vadjustment->value
8788       && node_dy + height <= (tree_view->priv->vadjustment->value
8789                               + tree_view->priv->vadjustment->page_size))
8790     return;
8791
8792   path = _gtk_tree_view_find_path (tree_view, tree, node);
8793   if (path)
8794     {
8795       /* We process updates because we want to clear old selected items when we scroll.
8796        * if this is removed, we get a "selection streak" at the bottom. */
8797       gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
8798       gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
8799       gtk_tree_path_free (path);
8800     }
8801 }
8802
8803 static void
8804 gtk_tree_view_clamp_column_visible (GtkTreeView       *tree_view,
8805                                     GtkTreeViewColumn *column,
8806                                     gboolean           focus_to_cell)
8807 {
8808   gint x, width;
8809
8810   if (column == NULL)
8811     return;
8812
8813   x = column->button->allocation.x;
8814   width = column->button->allocation.width;
8815
8816   if (width > tree_view->priv->hadjustment->page_size)
8817     {
8818       /* The column is larger than the horizontal page size.  If the
8819        * column has cells which can be focussed individually, then we make
8820        * sure the cell which gets focus is fully visible (if even the
8821        * focus cell is bigger than the page size, we make sure the
8822        * left-hand side of the cell is visible).
8823        *
8824        * If the column does not have those so-called special cells, we
8825        * make sure the left-hand side of the column is visible.
8826        */
8827
8828       if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
8829         {
8830           GtkTreePath *cursor_path;
8831           GdkRectangle background_area, cell_area, focus_area;
8832
8833           cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
8834
8835           gtk_tree_view_get_cell_area (tree_view,
8836                                        cursor_path, column, &cell_area);
8837           gtk_tree_view_get_background_area (tree_view,
8838                                              cursor_path, column,
8839                                              &background_area);
8840
8841           gtk_tree_path_free (cursor_path);
8842
8843           _gtk_tree_view_column_get_focus_area (column,
8844                                                 &background_area,
8845                                                 &cell_area,
8846                                                 &focus_area);
8847
8848           x = focus_area.x;
8849           width = focus_area.width;
8850
8851           if (width < tree_view->priv->hadjustment->page_size)
8852             {
8853               if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8854                 gtk_adjustment_set_value (tree_view->priv->hadjustment,
8855                                           x + width - tree_view->priv->hadjustment->page_size);
8856               else if (tree_view->priv->hadjustment->value > x)
8857                 gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8858             }
8859         }
8860
8861       gtk_adjustment_set_value (tree_view->priv->hadjustment,
8862                                 CLAMP (x,
8863                                        tree_view->priv->hadjustment->lower,
8864                                        tree_view->priv->hadjustment->upper
8865                                        - tree_view->priv->hadjustment->page_size));
8866     }
8867   else
8868     {
8869       if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
8870           gtk_adjustment_set_value (tree_view->priv->hadjustment,
8871                                     x + width - tree_view->priv->hadjustment->page_size);
8872       else if (tree_view->priv->hadjustment->value > x)
8873         gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
8874   }
8875 }
8876
8877 /* This function could be more efficient.  I'll optimize it if profiling seems
8878  * to imply that it is important */
8879 GtkTreePath *
8880 _gtk_tree_view_find_path (GtkTreeView *tree_view,
8881                           GtkRBTree   *tree,
8882                           GtkRBNode   *node)
8883 {
8884   GtkTreePath *path;
8885   GtkRBTree *tmp_tree;
8886   GtkRBNode *tmp_node, *last;
8887   gint count;
8888
8889   path = gtk_tree_path_new ();
8890
8891   g_return_val_if_fail (node != NULL, path);
8892   g_return_val_if_fail (node != tree->nil, path);
8893
8894   count = 1 + node->left->count;
8895
8896   last = node;
8897   tmp_node = node->parent;
8898   tmp_tree = tree;
8899   while (tmp_tree)
8900     {
8901       while (tmp_node != tmp_tree->nil)
8902         {
8903           if (tmp_node->right == last)
8904             count += 1 + tmp_node->left->count;
8905           last = tmp_node;
8906           tmp_node = tmp_node->parent;
8907         }
8908       gtk_tree_path_prepend_index (path, count - 1);
8909       last = tmp_tree->parent_node;
8910       tmp_tree = tmp_tree->parent_tree;
8911       if (last)
8912         {
8913           count = 1 + last->left->count;
8914           tmp_node = last->parent;
8915         }
8916     }
8917   return path;
8918 }
8919
8920 /* Returns TRUE if we ran out of tree before finding the path.  If the path is
8921  * invalid (ie. points to a node that's not in the tree), *tree and *node are
8922  * both set to NULL.
8923  */
8924 gboolean
8925 _gtk_tree_view_find_node (GtkTreeView  *tree_view,
8926                           GtkTreePath  *path,
8927                           GtkRBTree   **tree,
8928                           GtkRBNode   **node)
8929 {
8930   GtkRBNode *tmpnode = NULL;
8931   GtkRBTree *tmptree = tree_view->priv->tree;
8932   gint *indices = gtk_tree_path_get_indices (path);
8933   gint depth = gtk_tree_path_get_depth (path);
8934   gint i = 0;
8935
8936   *node = NULL;
8937   *tree = NULL;
8938
8939   if (depth == 0 || tmptree == NULL)
8940     return FALSE;
8941   do
8942     {
8943       tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
8944       ++i;
8945       if (tmpnode == NULL)
8946         {
8947           *tree = NULL;
8948           *node = NULL;
8949           return FALSE;
8950         }
8951       if (i >= depth)
8952         {
8953           *tree = tmptree;
8954           *node = tmpnode;
8955           return FALSE;
8956         }
8957       *tree = tmptree;
8958       *node = tmpnode;
8959       tmptree = tmpnode->children;
8960       if (tmptree == NULL)
8961         return TRUE;
8962     }
8963   while (1);
8964 }
8965
8966 static gboolean
8967 gtk_tree_view_is_expander_column (GtkTreeView       *tree_view,
8968                                   GtkTreeViewColumn *column)
8969 {
8970   GList *list;
8971
8972   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
8973     return FALSE;
8974
8975   if (tree_view->priv->expander_column != NULL)
8976     {
8977       if (tree_view->priv->expander_column == column)
8978         return TRUE;
8979       return FALSE;
8980     }
8981   else
8982     {
8983       for (list = tree_view->priv->columns;
8984            list;
8985            list = list->next)
8986         if (((GtkTreeViewColumn *)list->data)->visible)
8987           break;
8988       if (list && list->data == column)
8989         return TRUE;
8990     }
8991   return FALSE;
8992 }
8993
8994 static void
8995 gtk_tree_view_add_move_binding (GtkBindingSet  *binding_set,
8996                                 guint           keyval,
8997                                 guint           modmask,
8998                                 gboolean        add_shifted_binding,
8999                                 GtkMovementStep step,
9000                                 gint            count)
9001 {
9002
9003   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
9004                                 "move-cursor", 2,
9005                                 G_TYPE_ENUM, step,
9006                                 G_TYPE_INT, count);
9007
9008   if (add_shifted_binding)
9009     gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
9010                                   "move-cursor", 2,
9011                                   G_TYPE_ENUM, step,
9012                                   G_TYPE_INT, count);
9013
9014   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
9015    return;
9016
9017   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
9018                                 "move-cursor", 2,
9019                                 G_TYPE_ENUM, step,
9020                                 G_TYPE_INT, count);
9021
9022   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
9023                                 "move-cursor", 2,
9024                                 G_TYPE_ENUM, step,
9025                                 G_TYPE_INT, count);
9026 }
9027
9028 static gint
9029 gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
9030                                  GtkTreeIter  *iter,
9031                                  GtkRBTree    *tree,
9032                                  GtkRBNode    *node)
9033 {
9034   gint retval = FALSE;
9035   do
9036     {
9037       g_return_val_if_fail (node != NULL, FALSE);
9038
9039       if (node->children)
9040         {
9041           GtkTreeIter child;
9042           GtkRBTree *new_tree;
9043           GtkRBNode *new_node;
9044
9045           new_tree = node->children;
9046           new_node = new_tree->root;
9047
9048           while (new_node && new_node->left != new_tree->nil)
9049             new_node = new_node->left;
9050
9051           if (!gtk_tree_model_iter_children (model, &child, iter))
9052             return FALSE;
9053
9054           retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
9055         }
9056
9057       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
9058         retval = TRUE;
9059       gtk_tree_model_unref_node (model, iter);
9060       node = _gtk_rbtree_next (tree, node);
9061     }
9062   while (gtk_tree_model_iter_next (model, iter));
9063
9064   return retval;
9065 }
9066
9067 static gint
9068 gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
9069                                               GtkRBTree   *tree)
9070 {
9071   GtkTreeIter iter;
9072   GtkTreePath *path;
9073   GtkRBNode *node;
9074   gint retval;
9075
9076   if (!tree)
9077     return FALSE;
9078
9079   node = tree->root;
9080   while (node && node->left != tree->nil)
9081     node = node->left;
9082
9083   g_return_val_if_fail (node != NULL, FALSE);
9084   path = _gtk_tree_view_find_path (tree_view, tree, node);
9085   gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
9086                            &iter, path);
9087   retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
9088   gtk_tree_path_free (path);
9089
9090   return retval;
9091 }
9092
9093 static void
9094 gtk_tree_view_set_column_drag_info (GtkTreeView       *tree_view,
9095                                     GtkTreeViewColumn *column)
9096 {
9097   GtkTreeViewColumn *left_column;
9098   GtkTreeViewColumn *cur_column = NULL;
9099   GtkTreeViewColumnReorder *reorder;
9100   gboolean rtl;
9101   GList *tmp_list;
9102   gint left;
9103
9104   /* We want to precalculate the motion list such that we know what column slots
9105    * are available.
9106    */
9107   left_column = NULL;
9108   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9109
9110   /* First, identify all possible drop spots */
9111   if (rtl)
9112     tmp_list = g_list_last (tree_view->priv->columns);
9113   else
9114     tmp_list = g_list_first (tree_view->priv->columns);
9115
9116   while (tmp_list)
9117     {
9118       cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
9119       tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
9120
9121       if (cur_column->visible == FALSE)
9122         continue;
9123
9124       /* If it's not the column moving and func tells us to skip over the column, we continue. */
9125       if (left_column != column && cur_column != column &&
9126           tree_view->priv->column_drop_func &&
9127           ! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
9128         {
9129           left_column = cur_column;
9130           continue;
9131         }
9132       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9133       reorder->left_column = left_column;
9134       left_column = reorder->right_column = cur_column;
9135
9136       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9137     }
9138
9139   /* Add the last one */
9140   if (tree_view->priv->column_drop_func == NULL ||
9141       ((left_column != column) &&
9142        tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
9143     {
9144       reorder = g_slice_new0 (GtkTreeViewColumnReorder);
9145       reorder->left_column = left_column;
9146       reorder->right_column = NULL;
9147       tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
9148     }
9149
9150   /* We quickly check to see if it even makes sense to reorder columns. */
9151   /* If there is nothing that can be moved, then we return */
9152
9153   if (tree_view->priv->column_drag_info == NULL)
9154     return;
9155
9156   /* We know there are always 2 slots possbile, as you can always return column. */
9157   /* If that's all there is, return */
9158   if (tree_view->priv->column_drag_info->next == NULL ||
9159       (tree_view->priv->column_drag_info->next->next == NULL &&
9160        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
9161        ((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
9162     {
9163       for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9164         g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
9165       g_list_free (tree_view->priv->column_drag_info);
9166       tree_view->priv->column_drag_info = NULL;
9167       return;
9168     }
9169   /* We fill in the ranges for the columns, now that we've isolated them */
9170   left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9171
9172   for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
9173     {
9174       reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
9175
9176       reorder->left_align = left;
9177       if (tmp_list->next != NULL)
9178         {
9179           g_assert (tmp_list->next->data);
9180           left = reorder->right_align = (reorder->right_column->button->allocation.x +
9181                                          reorder->right_column->button->allocation.width +
9182                                          ((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button->allocation.x)/2;
9183         }
9184       else
9185         {
9186           gint width;
9187
9188           gdk_drawable_get_size (tree_view->priv->header_window, &width, NULL);
9189           reorder->right_align = width + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
9190         }
9191     }
9192 }
9193
9194 void
9195 _gtk_tree_view_column_start_drag (GtkTreeView       *tree_view,
9196                                   GtkTreeViewColumn *column)
9197 {
9198   GdkEvent *send_event;
9199   GtkAllocation allocation;
9200   gint x, y, width, height;
9201   GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
9202   GdkDisplay *display = gdk_screen_get_display (screen);
9203
9204   g_return_if_fail (tree_view->priv->column_drag_info == NULL);
9205   g_return_if_fail (tree_view->priv->cur_reorder == NULL);
9206
9207   gtk_tree_view_set_column_drag_info (tree_view, column);
9208
9209   if (tree_view->priv->column_drag_info == NULL)
9210     return;
9211
9212   if (tree_view->priv->drag_window == NULL)
9213     {
9214       GdkWindowAttr attributes;
9215       guint attributes_mask;
9216
9217       attributes.window_type = GDK_WINDOW_CHILD;
9218       attributes.wclass = GDK_INPUT_OUTPUT;
9219       attributes.x = column->button->allocation.x;
9220       attributes.y = 0;
9221       attributes.width = column->button->allocation.width;
9222       attributes.height = column->button->allocation.height;
9223       attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
9224       attributes.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
9225       attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
9226       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
9227
9228       tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
9229                                                      &attributes,
9230                                                      attributes_mask);
9231       gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
9232     }
9233
9234   gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
9235   gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
9236
9237   gtk_grab_remove (column->button);
9238
9239   send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
9240   send_event->crossing.send_event = TRUE;
9241   send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
9242   send_event->crossing.subwindow = NULL;
9243   send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
9244   send_event->crossing.time = GDK_CURRENT_TIME;
9245
9246   gtk_propagate_event (column->button, send_event);
9247   gdk_event_free (send_event);
9248
9249   send_event = gdk_event_new (GDK_BUTTON_RELEASE);
9250   send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
9251   send_event->button.send_event = TRUE;
9252   send_event->button.time = GDK_CURRENT_TIME;
9253   send_event->button.x = -1;
9254   send_event->button.y = -1;
9255   send_event->button.axes = NULL;
9256   send_event->button.state = 0;
9257   send_event->button.button = 1;
9258   send_event->button.device = gdk_display_get_core_pointer (display);
9259   send_event->button.x_root = 0;
9260   send_event->button.y_root = 0;
9261
9262   gtk_propagate_event (column->button, send_event);
9263   gdk_event_free (send_event);
9264
9265   /* Kids, don't try this at home */
9266   g_object_ref (column->button);
9267   gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
9268   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9269   gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
9270   g_object_unref (column->button);
9271
9272   tree_view->priv->drag_column_x = column->button->allocation.x;
9273   allocation = column->button->allocation;
9274   allocation.x = 0;
9275   gtk_widget_size_allocate (column->button, &allocation);
9276   gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
9277
9278   tree_view->priv->drag_column = column;
9279   gdk_window_show (tree_view->priv->drag_window);
9280
9281   gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
9282   gdk_drawable_get_size (tree_view->priv->header_window, &width, &height);
9283
9284   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9285   while (gtk_events_pending ())
9286     gtk_main_iteration ();
9287
9288   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
9289   gdk_pointer_grab (tree_view->priv->drag_window,
9290                     FALSE,
9291                     GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
9292                     NULL, NULL, GDK_CURRENT_TIME);
9293   gdk_keyboard_grab (tree_view->priv->drag_window,
9294                      FALSE,
9295                      GDK_CURRENT_TIME);
9296 }
9297
9298 static void
9299 gtk_tree_view_queue_draw_arrow (GtkTreeView        *tree_view,
9300                                 GtkRBTree          *tree,
9301                                 GtkRBNode          *node,
9302                                 const GdkRectangle *clip_rect)
9303 {
9304   GdkRectangle rect;
9305
9306   if (!GTK_WIDGET_REALIZED (tree_view))
9307     return;
9308
9309   rect.x = 0;
9310   rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width));
9311
9312   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9313   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9314
9315   if (clip_rect)
9316     {
9317       GdkRectangle new_rect;
9318
9319       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9320
9321       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9322     }
9323   else
9324     {
9325       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9326     }
9327 }
9328
9329 void
9330 _gtk_tree_view_queue_draw_node (GtkTreeView        *tree_view,
9331                                 GtkRBTree          *tree,
9332                                 GtkRBNode          *node,
9333                                 const GdkRectangle *clip_rect)
9334 {
9335   GdkRectangle rect;
9336
9337   if (!GTK_WIDGET_REALIZED (tree_view))
9338     return;
9339
9340   rect.x = 0;
9341   rect.width = MAX (tree_view->priv->width, GTK_WIDGET (tree_view)->allocation.width);
9342
9343   rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
9344   rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
9345
9346   if (clip_rect)
9347     {
9348       GdkRectangle new_rect;
9349
9350       gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
9351
9352       gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
9353     }
9354   else
9355     {
9356       gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
9357     }
9358 }
9359
9360 static void
9361 gtk_tree_view_queue_draw_path (GtkTreeView        *tree_view,
9362                                GtkTreePath        *path,
9363                                const GdkRectangle *clip_rect)
9364 {
9365   GtkRBTree *tree = NULL;
9366   GtkRBNode *node = NULL;
9367
9368   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
9369
9370   if (tree)
9371     _gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
9372 }
9373
9374 /* x and y are the mouse position
9375  */
9376 static void
9377 gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
9378                           GtkRBTree   *tree,
9379                           GtkRBNode   *node,
9380                           /* in bin_window coordinates */
9381                           gint         x,
9382                           gint         y)
9383 {
9384   GdkRectangle area;
9385   GtkStateType state;
9386   GtkWidget *widget;
9387   gint x_offset = 0;
9388   gint x2;
9389   gint vertical_separator;
9390   gint expander_size;
9391   GtkExpanderStyle expander_style;
9392
9393   gtk_widget_style_get (GTK_WIDGET (tree_view),
9394                         "vertical-separator", &vertical_separator,
9395                         NULL);
9396   expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
9397
9398   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
9399     return;
9400
9401   widget = GTK_WIDGET (tree_view);
9402
9403   gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
9404
9405   area.x = x_offset;
9406   area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
9407   area.width = expander_size + 2;
9408   area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
9409
9410   if (GTK_WIDGET_STATE (tree_view) == GTK_STATE_INSENSITIVE)
9411     {
9412       state = GTK_STATE_INSENSITIVE;
9413     }
9414   else if (node == tree_view->priv->button_pressed_node)
9415     {
9416       if (x >= area.x && x <= (area.x + area.width) &&
9417           y >= area.y && y <= (area.y + area.height))
9418         state = GTK_STATE_ACTIVE;
9419       else
9420         state = GTK_STATE_NORMAL;
9421     }
9422   else
9423     {
9424       if (node == tree_view->priv->prelight_node &&
9425           GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
9426         state = GTK_STATE_PRELIGHT;
9427       else
9428         state = GTK_STATE_NORMAL;
9429     }
9430
9431   if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
9432     expander_style = GTK_EXPANDER_SEMI_EXPANDED;
9433   else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
9434     expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
9435   else if (node->children != NULL)
9436     expander_style = GTK_EXPANDER_EXPANDED;
9437   else
9438     expander_style = GTK_EXPANDER_COLLAPSED;
9439
9440   gtk_paint_expander (widget->style,
9441                       tree_view->priv->bin_window,
9442                       state,
9443                       &area,
9444                       widget,
9445                       "treeview",
9446                       area.x + area.width / 2,
9447                       area.y + area.height / 2,
9448                       expander_style);
9449 }
9450
9451 static void
9452 gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
9453
9454 {
9455   GtkTreePath *cursor_path;
9456
9457   if ((tree_view->priv->tree == NULL) ||
9458       (! GTK_WIDGET_REALIZED (tree_view)))
9459     return;
9460
9461   cursor_path = NULL;
9462   if (tree_view->priv->cursor)
9463     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9464
9465   if (cursor_path == NULL)
9466     {
9467       /* Consult the selection before defaulting to the
9468        * first focusable element
9469        */
9470       GList *selected_rows;
9471       GtkTreeModel *model;
9472       GtkTreeSelection *selection;
9473
9474       selection = gtk_tree_view_get_selection (tree_view);
9475       selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
9476
9477       if (selected_rows)
9478         {
9479           cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
9480           g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
9481           g_list_free (selected_rows);
9482         }
9483       else
9484         {
9485           cursor_path = gtk_tree_path_new_first ();
9486           search_first_focusable_path (tree_view, &cursor_path,
9487                                        TRUE, NULL, NULL);
9488         }
9489
9490       gtk_tree_row_reference_free (tree_view->priv->cursor);
9491       tree_view->priv->cursor = NULL;
9492
9493       if (cursor_path)
9494         {
9495           if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
9496             gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
9497           else
9498             gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9499         }
9500     }
9501
9502   if (cursor_path)
9503     {
9504       GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
9505
9506       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
9507       gtk_tree_path_free (cursor_path);
9508
9509       if (tree_view->priv->focus_column == NULL)
9510         {
9511           GList *list;
9512           for (list = tree_view->priv->columns; list; list = list->next)
9513             {
9514               if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
9515                 {
9516                   tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
9517                   break;
9518                 }
9519             }
9520         }
9521     }
9522 }
9523
9524 static void
9525 gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
9526                                    gint         count)
9527 {
9528   gint selection_count;
9529   GtkRBTree *cursor_tree = NULL;
9530   GtkRBNode *cursor_node = NULL;
9531   GtkRBTree *new_cursor_tree = NULL;
9532   GtkRBNode *new_cursor_node = NULL;
9533   GtkTreePath *cursor_path = NULL;
9534   gboolean grab_focus = TRUE;
9535   gboolean selectable;
9536
9537   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9538     return;
9539
9540   cursor_path = NULL;
9541   if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
9542     /* FIXME: we lost the cursor; should we get the first? */
9543     return;
9544
9545   cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9546   _gtk_tree_view_find_node (tree_view, cursor_path,
9547                             &cursor_tree, &cursor_node);
9548
9549   if (cursor_tree == NULL)
9550     /* FIXME: we lost the cursor; should we get the first? */
9551     return;
9552
9553   selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
9554   selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
9555                                                       cursor_node,
9556                                                       cursor_path);
9557
9558   if (selection_count == 0
9559       && tree_view->priv->selection->type != GTK_SELECTION_NONE
9560       && !tree_view->priv->ctrl_pressed
9561       && selectable)
9562     {
9563       /* Don't move the cursor, but just select the current node */
9564       new_cursor_tree = cursor_tree;
9565       new_cursor_node = cursor_node;
9566     }
9567   else
9568     {
9569       if (count == -1)
9570         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9571                                &new_cursor_tree, &new_cursor_node);
9572       else
9573         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9574                                &new_cursor_tree, &new_cursor_node);
9575     }
9576
9577   gtk_tree_path_free (cursor_path);
9578
9579   if (new_cursor_node)
9580     {
9581       cursor_path = _gtk_tree_view_find_path (tree_view,
9582                                               new_cursor_tree, new_cursor_node);
9583
9584       search_first_focusable_path (tree_view, &cursor_path,
9585                                    (count != -1),
9586                                    &new_cursor_tree,
9587                                    &new_cursor_node);
9588
9589       if (cursor_path)
9590         gtk_tree_path_free (cursor_path);
9591     }
9592
9593   /*
9594    * If the list has only one item and multi-selection is set then select
9595    * the row (if not yet selected).
9596    */
9597   if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
9598       new_cursor_node == NULL)
9599     {
9600       if (count == -1)
9601         _gtk_rbtree_next_full (cursor_tree, cursor_node,
9602                                &new_cursor_tree, &new_cursor_node);
9603       else
9604         _gtk_rbtree_prev_full (cursor_tree, cursor_node,
9605                                &new_cursor_tree, &new_cursor_node);
9606
9607       if (new_cursor_node == NULL
9608           && !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
9609         {
9610           new_cursor_node = cursor_node;
9611           new_cursor_tree = cursor_tree;
9612         }
9613       else
9614         {
9615           new_cursor_node = NULL;
9616         }
9617     }
9618
9619   if (new_cursor_node)
9620     {
9621       cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
9622       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
9623       gtk_tree_path_free (cursor_path);
9624     }
9625   else
9626     {
9627       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9628
9629       if (!tree_view->priv->shift_pressed)
9630         {
9631           if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
9632                                           count < 0 ?
9633                                           GTK_DIR_UP : GTK_DIR_DOWN))
9634             {
9635               GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
9636
9637               if (toplevel)
9638                 gtk_widget_child_focus (toplevel,
9639                                         count < 0 ?
9640                                         GTK_DIR_TAB_BACKWARD :
9641                                         GTK_DIR_TAB_FORWARD);
9642
9643               grab_focus = FALSE;
9644             }
9645         }
9646       else
9647         {
9648           gtk_widget_error_bell (GTK_WIDGET (tree_view));
9649         }
9650     }
9651
9652   if (grab_focus)
9653     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9654 }
9655
9656 static void
9657 gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
9658                                         gint         count)
9659 {
9660   GtkRBTree *cursor_tree = NULL;
9661   GtkRBNode *cursor_node = NULL;
9662   GtkTreePath *old_cursor_path = NULL;
9663   GtkTreePath *cursor_path = NULL;
9664   GtkRBTree *start_cursor_tree = NULL;
9665   GtkRBNode *start_cursor_node = NULL;
9666   gint y;
9667   gint window_y;
9668   gint vertical_separator;
9669
9670   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9671     return;
9672
9673   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9674     old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9675   else
9676     /* This is sorta weird.  Focus in should give us a cursor */
9677     return;
9678
9679   gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
9680   _gtk_tree_view_find_node (tree_view, old_cursor_path,
9681                             &cursor_tree, &cursor_node);
9682
9683   if (cursor_tree == NULL)
9684     {
9685       /* FIXME: we lost the cursor.  Should we try to get one? */
9686       gtk_tree_path_free (old_cursor_path);
9687       return;
9688     }
9689   g_return_if_fail (cursor_node != NULL);
9690
9691   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9692   window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
9693   y += tree_view->priv->cursor_offset;
9694   y += count * (int)tree_view->priv->vadjustment->page_increment;
9695   y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower,  (gint)tree_view->priv->vadjustment->upper - vertical_separator);
9696
9697   if (y >= tree_view->priv->height)
9698     y = tree_view->priv->height - 1;
9699
9700   tree_view->priv->cursor_offset =
9701     _gtk_rbtree_find_offset (tree_view->priv->tree, y,
9702                              &cursor_tree, &cursor_node);
9703
9704   if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
9705     {
9706       _gtk_rbtree_next_full (cursor_tree, cursor_node,
9707                              &cursor_tree, &cursor_node);
9708       tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
9709     }
9710
9711   y -= tree_view->priv->cursor_offset;
9712   cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9713
9714   start_cursor_tree = cursor_tree;
9715   start_cursor_node = cursor_node;
9716
9717   if (! search_first_focusable_path (tree_view, &cursor_path,
9718                                      (count != -1),
9719                                      &cursor_tree, &cursor_node))
9720     {
9721       /* It looks like we reached the end of the view without finding
9722        * a focusable row.  We will step backwards to find the last
9723        * focusable row.
9724        */
9725       cursor_tree = start_cursor_tree;
9726       cursor_node = start_cursor_node;
9727       cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9728
9729       search_first_focusable_path (tree_view, &cursor_path,
9730                                    (count == -1),
9731                                    &cursor_tree, &cursor_node);
9732     }
9733
9734   if (!cursor_path)
9735     goto cleanup;
9736
9737   /* update y */
9738   y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
9739
9740   gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
9741
9742   y -= window_y;
9743   gtk_tree_view_scroll_to_point (tree_view, -1, y);
9744   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
9745   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
9746
9747   if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
9748     gtk_widget_error_bell (GTK_WIDGET (tree_view));
9749
9750   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9751
9752 cleanup:
9753   gtk_tree_path_free (old_cursor_path);
9754   gtk_tree_path_free (cursor_path);
9755 }
9756
9757 static void
9758 gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
9759                                       gint         count)
9760 {
9761   GtkRBTree *cursor_tree = NULL;
9762   GtkRBNode *cursor_node = NULL;
9763   GtkTreePath *cursor_path = NULL;
9764   GtkTreeViewColumn *column;
9765   GtkTreeIter iter;
9766   GList *list;
9767   gboolean found_column = FALSE;
9768   gboolean rtl;
9769
9770   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
9771
9772   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9773     return;
9774
9775   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
9776     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9777   else
9778     return;
9779
9780   _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
9781   if (cursor_tree == NULL)
9782     return;
9783   if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
9784     {
9785       gtk_tree_path_free (cursor_path);
9786       return;
9787     }
9788   gtk_tree_path_free (cursor_path);
9789
9790   list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
9791   if (tree_view->priv->focus_column)
9792     {
9793       for (; list; list = (rtl ? list->prev : list->next))
9794         {
9795           if (list->data == tree_view->priv->focus_column)
9796             break;
9797         }
9798     }
9799
9800   while (list)
9801     {
9802       gboolean left, right;
9803
9804       column = list->data;
9805       if (column->visible == FALSE)
9806         goto loop_end;
9807
9808       gtk_tree_view_column_cell_set_cell_data (column,
9809                                                tree_view->priv->model,
9810                                                &iter,
9811                                                GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
9812                                                cursor_node->children?TRUE:FALSE);
9813
9814       if (rtl)
9815         {
9816           right = list->prev ? TRUE : FALSE;
9817           left = list->next ? TRUE : FALSE;
9818         }
9819       else
9820         {
9821           left = list->prev ? TRUE : FALSE;
9822           right = list->next ? TRUE : FALSE;
9823         }
9824
9825       if (_gtk_tree_view_column_cell_focus (column, count, left, right))
9826         {
9827           tree_view->priv->focus_column = column;
9828           found_column = TRUE;
9829           break;
9830         }
9831     loop_end:
9832       if (count == 1)
9833         list = rtl ? list->prev : list->next;
9834       else
9835         list = rtl ? list->next : list->prev;
9836     }
9837
9838   if (found_column)
9839     {
9840       if (!gtk_tree_view_has_special_cell (tree_view))
9841         _gtk_tree_view_queue_draw_node (tree_view,
9842                                         cursor_tree,
9843                                         cursor_node,
9844                                         NULL);
9845       g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
9846       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9847     }
9848   else
9849     {
9850       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9851     }
9852
9853   gtk_tree_view_clamp_column_visible (tree_view,
9854                                       tree_view->priv->focus_column, TRUE);
9855 }
9856
9857 static void
9858 gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
9859                                      gint         count)
9860 {
9861   GtkRBTree *cursor_tree;
9862   GtkRBNode *cursor_node;
9863   GtkTreePath *path;
9864   GtkTreePath *old_path;
9865
9866   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9867     return;
9868
9869   g_return_if_fail (tree_view->priv->tree != NULL);
9870
9871   gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
9872
9873   cursor_tree = tree_view->priv->tree;
9874   cursor_node = cursor_tree->root;
9875
9876   if (count == -1)
9877     {
9878       while (cursor_node && cursor_node->left != cursor_tree->nil)
9879         cursor_node = cursor_node->left;
9880
9881       /* Now go forward to find the first focusable row. */
9882       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9883       search_first_focusable_path (tree_view, &path,
9884                                    TRUE, &cursor_tree, &cursor_node);
9885     }
9886   else
9887     {
9888       do
9889         {
9890           while (cursor_node && cursor_node->right != cursor_tree->nil)
9891             cursor_node = cursor_node->right;
9892           if (cursor_node->children == NULL)
9893             break;
9894
9895           cursor_tree = cursor_node->children;
9896           cursor_node = cursor_tree->root;
9897         }
9898       while (1);
9899
9900       /* Now go backwards to find last focusable row. */
9901       path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
9902       search_first_focusable_path (tree_view, &path,
9903                                    FALSE, &cursor_tree, &cursor_node);
9904     }
9905
9906   if (!path)
9907     goto cleanup;
9908
9909   if (gtk_tree_path_compare (old_path, path))
9910     {
9911       gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
9912       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
9913     }
9914   else
9915     {
9916       gtk_widget_error_bell (GTK_WIDGET (tree_view));
9917     }
9918
9919 cleanup:
9920   gtk_tree_path_free (old_path);
9921   gtk_tree_path_free (path);
9922 }
9923
9924 static gboolean
9925 gtk_tree_view_real_select_all (GtkTreeView *tree_view)
9926 {
9927   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9928     return FALSE;
9929
9930   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9931     return FALSE;
9932
9933   gtk_tree_selection_select_all (tree_view->priv->selection);
9934
9935   return TRUE;
9936 }
9937
9938 static gboolean
9939 gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
9940 {
9941   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9942     return FALSE;
9943
9944   if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
9945     return FALSE;
9946
9947   gtk_tree_selection_unselect_all (tree_view->priv->selection);
9948
9949   return TRUE;
9950 }
9951
9952 static gboolean
9953 gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
9954                                       gboolean     start_editing)
9955 {
9956   GtkRBTree *new_tree = NULL;
9957   GtkRBNode *new_node = NULL;
9958   GtkRBTree *cursor_tree = NULL;
9959   GtkRBNode *cursor_node = NULL;
9960   GtkTreePath *cursor_path = NULL;
9961   GtkTreeSelectMode mode = 0;
9962
9963   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
9964     return FALSE;
9965
9966   if (tree_view->priv->cursor)
9967     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
9968
9969   if (cursor_path == NULL)
9970     return FALSE;
9971
9972   _gtk_tree_view_find_node (tree_view, cursor_path,
9973                             &cursor_tree, &cursor_node);
9974
9975   if (cursor_tree == NULL)
9976     {
9977       gtk_tree_path_free (cursor_path);
9978       return FALSE;
9979     }
9980
9981   if (!tree_view->priv->shift_pressed && start_editing &&
9982       tree_view->priv->focus_column)
9983     {
9984       if (gtk_tree_view_start_editing (tree_view, cursor_path))
9985         {
9986           gtk_tree_path_free (cursor_path);
9987           return TRUE;
9988         }
9989     }
9990
9991   if (tree_view->priv->ctrl_pressed)
9992     mode |= GTK_TREE_SELECT_MODE_TOGGLE;
9993   if (tree_view->priv->shift_pressed)
9994     mode |= GTK_TREE_SELECT_MODE_EXTEND;
9995
9996   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
9997                                             cursor_node,
9998                                             cursor_tree,
9999                                             cursor_path,
10000                                             mode,
10001                                             FALSE);
10002
10003   /* We bail out if the original (tree, node) don't exist anymore after
10004    * handling the selection-changed callback.  We do return TRUE because
10005    * the key press has been handled at this point.
10006    */
10007   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10008
10009   if (cursor_tree != new_tree || cursor_node != new_node)
10010     return FALSE;
10011
10012   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10013
10014   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10015   _gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
10016
10017   if (!tree_view->priv->shift_pressed)
10018     gtk_tree_view_row_activated (tree_view, cursor_path,
10019                                  tree_view->priv->focus_column);
10020
10021   gtk_tree_path_free (cursor_path);
10022
10023   return TRUE;
10024 }
10025
10026 static gboolean
10027 gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
10028 {
10029   GtkRBTree *new_tree = NULL;
10030   GtkRBNode *new_node = NULL;
10031   GtkRBTree *cursor_tree = NULL;
10032   GtkRBNode *cursor_node = NULL;
10033   GtkTreePath *cursor_path = NULL;
10034
10035   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10036     return FALSE;
10037
10038   cursor_path = NULL;
10039   if (tree_view->priv->cursor)
10040     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10041
10042   if (cursor_path == NULL)
10043     return FALSE;
10044
10045   _gtk_tree_view_find_node (tree_view, cursor_path,
10046                             &cursor_tree, &cursor_node);
10047   if (cursor_tree == NULL)
10048     {
10049       gtk_tree_path_free (cursor_path);
10050       return FALSE;
10051     }
10052
10053   _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
10054                                             cursor_node,
10055                                             cursor_tree,
10056                                             cursor_path,
10057                                             GTK_TREE_SELECT_MODE_TOGGLE,
10058                                             FALSE);
10059
10060   /* We bail out if the original (tree, node) don't exist anymore after
10061    * handling the selection-changed callback.  We do return TRUE because
10062    * the key press has been handled at this point.
10063    */
10064   _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
10065
10066   if (cursor_tree != new_tree || cursor_node != new_node)
10067     return FALSE;
10068
10069   gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10070
10071   gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10072   gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10073   gtk_tree_path_free (cursor_path);
10074
10075   return TRUE;
10076 }
10077
10078 static gboolean
10079 gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
10080                                                gboolean     logical,
10081                                                gboolean     expand,
10082                                                gboolean     open_all)
10083 {
10084   GtkTreePath *cursor_path = NULL;
10085   GtkRBTree *tree;
10086   GtkRBNode *node;
10087
10088   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10089     return FALSE;
10090
10091   cursor_path = NULL;
10092   if (tree_view->priv->cursor)
10093     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10094
10095   if (cursor_path == NULL)
10096     return FALSE;
10097
10098   if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
10099     return FALSE;
10100
10101   /* Don't handle the event if we aren't an expander */
10102   if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
10103     return FALSE;
10104
10105   if (!logical
10106       && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
10107     expand = !expand;
10108
10109   if (expand)
10110     gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
10111   else
10112     gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
10113
10114   gtk_tree_path_free (cursor_path);
10115
10116   return TRUE;
10117 }
10118
10119 static gboolean
10120 gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
10121 {
10122   GtkRBTree *cursor_tree = NULL;
10123   GtkRBNode *cursor_node = NULL;
10124   GtkTreePath *cursor_path = NULL;
10125   GdkModifierType state;
10126
10127   if (! GTK_WIDGET_HAS_FOCUS (tree_view))
10128     goto out;
10129
10130   cursor_path = NULL;
10131   if (tree_view->priv->cursor)
10132     cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
10133
10134   if (cursor_path == NULL)
10135     goto out;
10136
10137   _gtk_tree_view_find_node (tree_view, cursor_path,
10138                             &cursor_tree, &cursor_node);
10139   if (cursor_tree == NULL)
10140     {
10141       gtk_tree_path_free (cursor_path);
10142       goto out;
10143     }
10144
10145   if (cursor_tree->parent_node)
10146     {
10147       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10148       cursor_node = cursor_tree->parent_node;
10149       cursor_tree = cursor_tree->parent_tree;
10150
10151       gtk_tree_path_up (cursor_path);
10152
10153       if (gtk_get_current_event_state (&state))
10154         {
10155           if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
10156             tree_view->priv->ctrl_pressed = TRUE;
10157         }
10158
10159       gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
10160       gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
10161
10162       gtk_widget_grab_focus (GTK_WIDGET (tree_view));
10163       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
10164       gtk_tree_path_free (cursor_path);
10165
10166       tree_view->priv->ctrl_pressed = FALSE;
10167
10168       return TRUE;
10169     }
10170
10171  out:
10172
10173   tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
10174   return FALSE;
10175 }
10176
10177 static gboolean
10178 gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
10179 {
10180   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view);
10181   tree_view->priv->typeselect_flush_timeout = 0;
10182
10183   return FALSE;
10184 }
10185
10186 /* Cut and paste from gtkwindow.c */
10187 static void
10188 send_focus_change (GtkWidget *widget,
10189                    gboolean   in)
10190 {
10191   GdkEvent *fevent = gdk_event_new (GDK_FOCUS_CHANGE);
10192
10193   g_object_ref (widget);
10194
10195  if (in)
10196     GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
10197   else
10198     GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
10199
10200   fevent->focus_change.type = GDK_FOCUS_CHANGE;
10201   fevent->focus_change.window = g_object_ref (widget->window);
10202   fevent->focus_change.in = in;
10203
10204   gtk_widget_event (widget, fevent);
10205
10206   g_object_notify (G_OBJECT (widget), "has-focus");
10207
10208   g_object_unref (widget);
10209   gdk_event_free (fevent);
10210 }
10211
10212 static void
10213 gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
10214 {
10215   GtkWidget *frame, *vbox, *toplevel;
10216   GdkScreen *screen;
10217
10218   if (tree_view->priv->search_custom_entry_set)
10219     return;
10220
10221   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
10222   screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
10223
10224    if (tree_view->priv->search_window != NULL)
10225      {
10226        if (GTK_WINDOW (toplevel)->group)
10227          gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10228                                       GTK_WINDOW (tree_view->priv->search_window));
10229        else if (GTK_WINDOW (tree_view->priv->search_window)->group)
10230          gtk_window_group_remove_window (GTK_WINDOW (tree_view->priv->search_window)->group,
10231                                          GTK_WINDOW (tree_view->priv->search_window));
10232        gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10233        return;
10234      }
10235
10236   tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
10237   gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
10238
10239   if (GTK_WINDOW (toplevel)->group)
10240     gtk_window_group_add_window (GTK_WINDOW (toplevel)->group,
10241                                  GTK_WINDOW (tree_view->priv->search_window));
10242
10243   gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
10244                             GDK_WINDOW_TYPE_HINT_UTILITY);
10245   gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
10246   g_signal_connect (tree_view->priv->search_window, "delete-event",
10247                     G_CALLBACK (gtk_tree_view_search_delete_event),
10248                     tree_view);
10249   g_signal_connect (tree_view->priv->search_window, "key-press-event",
10250                     G_CALLBACK (gtk_tree_view_search_key_press_event),
10251                     tree_view);
10252   g_signal_connect (tree_view->priv->search_window, "button-press-event",
10253                     G_CALLBACK (gtk_tree_view_search_button_press_event),
10254                     tree_view);
10255   g_signal_connect (tree_view->priv->search_window, "scroll-event",
10256                     G_CALLBACK (gtk_tree_view_search_scroll_event),
10257                     tree_view);
10258
10259   frame = gtk_frame_new (NULL);
10260   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
10261   gtk_widget_show (frame);
10262   gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
10263
10264   vbox = gtk_vbox_new (FALSE, 0);
10265   gtk_widget_show (vbox);
10266   gtk_container_add (GTK_CONTAINER (frame), vbox);
10267   gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
10268
10269   /* add entry */
10270   tree_view->priv->search_entry = gtk_entry_new ();
10271   gtk_widget_show (tree_view->priv->search_entry);
10272   g_signal_connect (tree_view->priv->search_entry, "populate-popup",
10273                     G_CALLBACK (gtk_tree_view_search_disable_popdown),
10274                     tree_view);
10275   g_signal_connect (tree_view->priv->search_entry,
10276                     "activate", G_CALLBACK (gtk_tree_view_search_activate),
10277                     tree_view);
10278   g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
10279                     "preedit-changed",
10280                     G_CALLBACK (gtk_tree_view_search_preedit_changed),
10281                     tree_view);
10282   gtk_container_add (GTK_CONTAINER (vbox),
10283                      tree_view->priv->search_entry);
10284
10285   gtk_widget_realize (tree_view->priv->search_entry);
10286 }
10287
10288 /* Pops up the interactive search entry.  If keybinding is TRUE then the user
10289  * started this by typing the start_interactive_search keybinding.  Otherwise, it came from
10290  */
10291 static gboolean
10292 gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
10293                                              gboolean     keybinding)
10294 {
10295   /* We only start interactive search if we have focus or the columns
10296    * have focus.  If one of our children have focus, we don't want to
10297    * start the search.
10298    */
10299   GList *list;
10300   gboolean found_focus = FALSE;
10301   GtkWidgetClass *entry_parent_class;
10302
10303   if (!tree_view->priv->enable_search && !keybinding)
10304     return FALSE;
10305
10306   if (tree_view->priv->search_custom_entry_set)
10307     return FALSE;
10308
10309   if (tree_view->priv->search_window != NULL &&
10310       GTK_WIDGET_VISIBLE (tree_view->priv->search_window))
10311     return TRUE;
10312
10313   for (list = tree_view->priv->columns; list; list = list->next)
10314     {
10315       GtkTreeViewColumn *column;
10316
10317       column = list->data;
10318       if (! column->visible)
10319         continue;
10320
10321       if (GTK_WIDGET_HAS_FOCUS (column->button))
10322         {
10323           found_focus = TRUE;
10324           break;
10325         }
10326     }
10327
10328   if (GTK_WIDGET_HAS_FOCUS (tree_view))
10329     found_focus = TRUE;
10330
10331   if (!found_focus)
10332     return FALSE;
10333
10334   if (tree_view->priv->search_column < 0)
10335     return FALSE;
10336
10337   gtk_tree_view_ensure_interactive_directory (tree_view);
10338
10339   if (keybinding)
10340     gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
10341
10342   /* done, show it */
10343   tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
10344   gtk_widget_show (tree_view->priv->search_window);
10345   if (tree_view->priv->search_entry_changed_id == 0)
10346     {
10347       tree_view->priv->search_entry_changed_id =
10348         g_signal_connect (tree_view->priv->search_entry, "changed",
10349                           G_CALLBACK (gtk_tree_view_search_init),
10350                           tree_view);
10351     }
10352
10353   tree_view->priv->typeselect_flush_timeout =
10354     gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
10355                    (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
10356                    tree_view);
10357
10358   /* Grab focus will select all the text.  We don't want that to happen, so we
10359    * call the parent instance and bypass the selection change.  This is probably
10360    * really non-kosher. */
10361   entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
10362   (entry_parent_class->grab_focus) (tree_view->priv->search_entry);
10363
10364   /* send focus-in event */
10365   send_focus_change (tree_view->priv->search_entry, TRUE);
10366
10367   /* search first matching iter */
10368   gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
10369
10370   return TRUE;
10371 }
10372
10373 static gboolean
10374 gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
10375 {
10376   return gtk_tree_view_real_start_interactive_search (tree_view, TRUE);
10377 }
10378
10379 /* this function returns the new width of the column being resized given
10380  * the column and x position of the cursor; the x cursor position is passed
10381  * in as a pointer and automagicly corrected if it's beyond min/max limits
10382  */
10383 static gint
10384 gtk_tree_view_new_column_width (GtkTreeView *tree_view,
10385                                 gint       i,
10386                                 gint      *x)
10387 {
10388   GtkTreeViewColumn *column;
10389   gint width;
10390   gboolean rtl;
10391
10392   /* first translate the x position from widget->window
10393    * to clist->clist_window
10394    */
10395   rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
10396   column = g_list_nth (tree_view->priv->columns, i)->data;
10397   width = rtl ? (column->button->allocation.x + column->button->allocation.width - *x) : (*x - column->button->allocation.x);
10398
10399   /* Clamp down the value */
10400   if (column->min_width == -1)
10401     width = MAX (column->button->requisition.width,
10402                  width);
10403   else
10404     width = MAX (column->min_width,
10405                  width);
10406   if (column->max_width != -1)
10407     width = MIN (width, column->max_width);
10408
10409   *x = rtl ? (column->button->allocation.x + column->button->allocation.width - width) : (column->button->allocation.x + width);
10410
10411   return width;
10412 }
10413
10414
10415 /* FIXME this adjust_allocation is a big cut-and-paste from
10416  * GtkCList, needs to be some "official" way to do this
10417  * factored out.
10418  */
10419 typedef struct
10420 {
10421   GdkWindow *window;
10422   int dx;
10423   int dy;
10424 } ScrollData;
10425
10426 /* The window to which widget->window is relative */
10427 #define ALLOCATION_WINDOW(widget)               \
10428    (GTK_WIDGET_NO_WINDOW (widget) ?             \
10429     (widget)->window :                          \
10430      gdk_window_get_parent ((widget)->window))
10431
10432 static void
10433 adjust_allocation_recurse (GtkWidget *widget,
10434                            gpointer   data)
10435 {
10436   ScrollData *scroll_data = data;
10437
10438   /* Need to really size allocate instead of just poking
10439    * into widget->allocation if the widget is not realized.
10440    * FIXME someone figure out why this was.
10441    */
10442   if (!GTK_WIDGET_REALIZED (widget))
10443     {
10444       if (GTK_WIDGET_VISIBLE (widget))
10445         {
10446           GdkRectangle tmp_rectangle = widget->allocation;
10447           tmp_rectangle.x += scroll_data->dx;
10448           tmp_rectangle.y += scroll_data->dy;
10449
10450           gtk_widget_size_allocate (widget, &tmp_rectangle);
10451         }
10452     }
10453   else
10454     {
10455       if (ALLOCATION_WINDOW (widget) == scroll_data->window)
10456         {
10457           widget->allocation.x += scroll_data->dx;
10458           widget->allocation.y += scroll_data->dy;
10459
10460           if (GTK_IS_CONTAINER (widget))
10461             gtk_container_forall (GTK_CONTAINER (widget),
10462                                   adjust_allocation_recurse,
10463                                   data);
10464         }
10465     }
10466 }
10467
10468 static void
10469 adjust_allocation (GtkWidget *widget,
10470                    int        dx,
10471                    int        dy)
10472 {
10473   ScrollData scroll_data;
10474
10475   if (GTK_WIDGET_REALIZED (widget))
10476     scroll_data.window = ALLOCATION_WINDOW (widget);
10477   else
10478     scroll_data.window = NULL;
10479
10480   scroll_data.dx = dx;
10481   scroll_data.dy = dy;
10482
10483   adjust_allocation_recurse (widget, &scroll_data);
10484 }
10485
10486 /* Callbacks */
10487 static void
10488 gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
10489                                   GtkTreeView   *tree_view)
10490 {
10491   if (GTK_WIDGET_REALIZED (tree_view))
10492     {
10493       gint dy;
10494
10495       gdk_window_move (tree_view->priv->bin_window,
10496                        - tree_view->priv->hadjustment->value,
10497                        TREE_VIEW_HEADER_HEIGHT (tree_view));
10498       gdk_window_move (tree_view->priv->header_window,
10499                        - tree_view->priv->hadjustment->value,
10500                        0);
10501       dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
10502       if (dy && tree_view->priv->edited_column)
10503         {
10504           if (GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
10505             {
10506               GList *list;
10507               GtkWidget *widget;
10508               GtkTreeViewChild *child = NULL;
10509
10510               widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
10511               adjust_allocation (widget, 0, dy);
10512
10513               for (list = tree_view->priv->children; list; list = list->next)
10514                 {
10515                   child = (GtkTreeViewChild *)list->data;
10516                   if (child->widget == widget)
10517                     {
10518                       child->y += dy;
10519                       break;
10520                     }
10521                 }
10522             }
10523         }
10524       gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
10525
10526       if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
10527         {
10528           /* update our dy and top_row */
10529           tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
10530
10531           if (!tree_view->priv->in_top_row_to_dy)
10532             gtk_tree_view_dy_to_top_row (tree_view);
10533         }
10534     }
10535 }
10536
10537 \f
10538
10539 /* Public methods
10540  */
10541
10542 /**
10543  * gtk_tree_view_new:
10544  *
10545  * Creates a new #GtkTreeView widget.
10546  *
10547  * Return value: A newly created #GtkTreeView widget.
10548  **/
10549 GtkWidget *
10550 gtk_tree_view_new (void)
10551 {
10552   return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
10553 }
10554
10555 /**
10556  * gtk_tree_view_new_with_model:
10557  * @model: the model.
10558  *
10559  * Creates a new #GtkTreeView widget with the model initialized to @model.
10560  *
10561  * Return value: A newly created #GtkTreeView widget.
10562  **/
10563 GtkWidget *
10564 gtk_tree_view_new_with_model (GtkTreeModel *model)
10565 {
10566   return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
10567 }
10568
10569 /* Public Accessors
10570  */
10571
10572 /**
10573  * gtk_tree_view_get_model:
10574  * @tree_view: a #GtkTreeView
10575  *
10576  * Returns the model the #GtkTreeView is based on.  Returns %NULL if the
10577  * model is unset.
10578  *
10579  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
10580  **/
10581 GtkTreeModel *
10582 gtk_tree_view_get_model (GtkTreeView *tree_view)
10583 {
10584   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10585
10586   return tree_view->priv->model;
10587 }
10588
10589 /**
10590  * gtk_tree_view_set_model:
10591  * @tree_view: A #GtkTreeNode.
10592  * @model: The model.
10593  *
10594  * Sets the model for a #GtkTreeView.  If the @tree_view already has a model
10595  * set, it will remove it before setting the new model.  If @model is %NULL,
10596  * then it will unset the old model.
10597  **/
10598 void
10599 gtk_tree_view_set_model (GtkTreeView  *tree_view,
10600                          GtkTreeModel *model)
10601 {
10602   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10603   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
10604
10605   if (model == tree_view->priv->model)
10606     return;
10607
10608   if (tree_view->priv->scroll_to_path)
10609     {
10610       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10611       tree_view->priv->scroll_to_path = NULL;
10612     }
10613
10614   if (tree_view->priv->model)
10615     {
10616       GList *tmplist = tree_view->priv->columns;
10617
10618       gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
10619       gtk_tree_view_stop_editing (tree_view, TRUE);
10620
10621       remove_expand_collapse_timeout (tree_view);
10622
10623       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10624                                             gtk_tree_view_row_changed,
10625                                             tree_view);
10626       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10627                                             gtk_tree_view_row_inserted,
10628                                             tree_view);
10629       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10630                                             gtk_tree_view_row_has_child_toggled,
10631                                             tree_view);
10632       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10633                                             gtk_tree_view_row_deleted,
10634                                             tree_view);
10635       g_signal_handlers_disconnect_by_func (tree_view->priv->model,
10636                                             gtk_tree_view_rows_reordered,
10637                                             tree_view);
10638
10639       for (; tmplist; tmplist = tmplist->next)
10640         _gtk_tree_view_column_unset_model (tmplist->data,
10641                                            tree_view->priv->model);
10642
10643       if (tree_view->priv->tree)
10644         gtk_tree_view_free_rbtree (tree_view);
10645
10646       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
10647       tree_view->priv->drag_dest_row = NULL;
10648       gtk_tree_row_reference_free (tree_view->priv->cursor);
10649       tree_view->priv->cursor = NULL;
10650       gtk_tree_row_reference_free (tree_view->priv->anchor);
10651       tree_view->priv->anchor = NULL;
10652       gtk_tree_row_reference_free (tree_view->priv->top_row);
10653       tree_view->priv->top_row = NULL;
10654       gtk_tree_row_reference_free (tree_view->priv->last_button_press);
10655       tree_view->priv->last_button_press = NULL;
10656       gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
10657       tree_view->priv->last_button_press_2 = NULL;
10658       gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
10659       tree_view->priv->scroll_to_path = NULL;
10660
10661       tree_view->priv->scroll_to_column = NULL;
10662
10663       g_object_unref (tree_view->priv->model);
10664
10665       tree_view->priv->search_column = -1;
10666       tree_view->priv->fixed_height_check = 0;
10667       tree_view->priv->fixed_height = -1;
10668       tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
10669     }
10670
10671   tree_view->priv->model = model;
10672
10673   if (tree_view->priv->model)
10674     {
10675       gint i;
10676       GtkTreePath *path;
10677       GtkTreeIter iter;
10678       GtkTreeModelFlags flags;
10679
10680       if (tree_view->priv->search_column == -1)
10681         {
10682           for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
10683             {
10684               GType type = gtk_tree_model_get_column_type (model, i);
10685
10686               if (g_value_type_transformable (type, G_TYPE_STRING))
10687                 {
10688                   tree_view->priv->search_column = i;
10689                   break;
10690                 }
10691             }
10692         }
10693
10694       g_object_ref (tree_view->priv->model);
10695       g_signal_connect (tree_view->priv->model,
10696                         "row-changed",
10697                         G_CALLBACK (gtk_tree_view_row_changed),
10698                         tree_view);
10699       g_signal_connect (tree_view->priv->model,
10700                         "row-inserted",
10701                         G_CALLBACK (gtk_tree_view_row_inserted),
10702                         tree_view);
10703       g_signal_connect (tree_view->priv->model,
10704                         "row-has-child-toggled",
10705                         G_CALLBACK (gtk_tree_view_row_has_child_toggled),
10706                         tree_view);
10707       g_signal_connect (tree_view->priv->model,
10708                         "row-deleted",
10709                         G_CALLBACK (gtk_tree_view_row_deleted),
10710                         tree_view);
10711       g_signal_connect (tree_view->priv->model,
10712                         "rows-reordered",
10713                         G_CALLBACK (gtk_tree_view_rows_reordered),
10714                         tree_view);
10715
10716       flags = gtk_tree_model_get_flags (tree_view->priv->model);
10717       if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
10718         GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10719       else
10720         GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
10721
10722       path = gtk_tree_path_new_first ();
10723       if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
10724         {
10725           tree_view->priv->tree = _gtk_rbtree_new ();
10726           gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
10727         }
10728       gtk_tree_path_free (path);
10729
10730       /*  FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
10731       install_presize_handler (tree_view);
10732     }
10733
10734   g_object_notify (G_OBJECT (tree_view), "model");
10735
10736   if (tree_view->priv->selection)
10737   _gtk_tree_selection_emit_changed (tree_view->priv->selection);
10738
10739   if (GTK_WIDGET_REALIZED (tree_view))
10740     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10741 }
10742
10743 /**
10744  * gtk_tree_view_get_selection:
10745  * @tree_view: A #GtkTreeView.
10746  *
10747  * Gets the #GtkTreeSelection associated with @tree_view.
10748  *
10749  * Return value: A #GtkTreeSelection object.
10750  **/
10751 GtkTreeSelection *
10752 gtk_tree_view_get_selection (GtkTreeView *tree_view)
10753 {
10754   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10755
10756   return tree_view->priv->selection;
10757 }
10758
10759 /**
10760  * gtk_tree_view_get_hadjustment:
10761  * @tree_view: A #GtkTreeView
10762  *
10763  * Gets the #GtkAdjustment currently being used for the horizontal aspect.
10764  *
10765  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10766  * used.
10767  **/
10768 GtkAdjustment *
10769 gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
10770 {
10771   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10772
10773   if (tree_view->priv->hadjustment == NULL)
10774     gtk_tree_view_set_hadjustment (tree_view, NULL);
10775
10776   return tree_view->priv->hadjustment;
10777 }
10778
10779 /**
10780  * gtk_tree_view_set_hadjustment:
10781  * @tree_view: A #GtkTreeView
10782  * @adjustment: The #GtkAdjustment to set, or %NULL
10783  *
10784  * Sets the #GtkAdjustment for the current horizontal aspect.
10785  **/
10786 void
10787 gtk_tree_view_set_hadjustment (GtkTreeView   *tree_view,
10788                                GtkAdjustment *adjustment)
10789 {
10790   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10791
10792   gtk_tree_view_set_adjustments (tree_view,
10793                                  adjustment,
10794                                  tree_view->priv->vadjustment);
10795
10796   g_object_notify (G_OBJECT (tree_view), "hadjustment");
10797 }
10798
10799 /**
10800  * gtk_tree_view_get_vadjustment:
10801  * @tree_view: A #GtkTreeView
10802  *
10803  * Gets the #GtkAdjustment currently being used for the vertical aspect.
10804  *
10805  * Return value: A #GtkAdjustment object, or %NULL if none is currently being
10806  * used.
10807  **/
10808 GtkAdjustment *
10809 gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
10810 {
10811   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
10812
10813   if (tree_view->priv->vadjustment == NULL)
10814     gtk_tree_view_set_vadjustment (tree_view, NULL);
10815
10816   return tree_view->priv->vadjustment;
10817 }
10818
10819 /**
10820  * gtk_tree_view_set_vadjustment:
10821  * @tree_view: A #GtkTreeView
10822  * @adjustment: The #GtkAdjustment to set, or %NULL
10823  *
10824  * Sets the #GtkAdjustment for the current vertical aspect.
10825  **/
10826 void
10827 gtk_tree_view_set_vadjustment (GtkTreeView   *tree_view,
10828                                GtkAdjustment *adjustment)
10829 {
10830   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10831
10832   gtk_tree_view_set_adjustments (tree_view,
10833                                  tree_view->priv->hadjustment,
10834                                  adjustment);
10835
10836   g_object_notify (G_OBJECT (tree_view), "vadjustment");
10837 }
10838
10839 /* Column and header operations */
10840
10841 /**
10842  * gtk_tree_view_get_headers_visible:
10843  * @tree_view: A #GtkTreeView.
10844  *
10845  * Returns %TRUE if the headers on the @tree_view are visible.
10846  *
10847  * Return value: Whether the headers are visible or not.
10848  **/
10849 gboolean
10850 gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
10851 {
10852   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10853
10854   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10855 }
10856
10857 /**
10858  * gtk_tree_view_set_headers_visible:
10859  * @tree_view: A #GtkTreeView.
10860  * @headers_visible: %TRUE if the headers are visible
10861  *
10862  * Sets the visibility state of the headers.
10863  **/
10864 void
10865 gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
10866                                    gboolean     headers_visible)
10867 {
10868   gint x, y;
10869   GList *list;
10870   GtkTreeViewColumn *column;
10871
10872   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10873
10874   headers_visible = !! headers_visible;
10875
10876   if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
10877     return;
10878
10879   if (headers_visible)
10880     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10881   else
10882     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
10883
10884   if (GTK_WIDGET_REALIZED (tree_view))
10885     {
10886       gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
10887       if (headers_visible)
10888         {
10889           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));
10890
10891           if (GTK_WIDGET_MAPPED (tree_view))
10892             gtk_tree_view_map_buttons (tree_view);
10893         }
10894       else
10895         {
10896           gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
10897
10898           for (list = tree_view->priv->columns; list; list = list->next)
10899             {
10900               column = list->data;
10901               gtk_widget_unmap (column->button);
10902             }
10903           gdk_window_hide (tree_view->priv->header_window);
10904         }
10905     }
10906
10907   tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
10908   tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
10909   tree_view->priv->vadjustment->lower = 0;
10910   tree_view->priv->vadjustment->upper = tree_view->priv->height;
10911   gtk_adjustment_changed (tree_view->priv->vadjustment);
10912
10913   gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10914
10915   g_object_notify (G_OBJECT (tree_view), "headers-visible");
10916 }
10917
10918 /**
10919  * gtk_tree_view_columns_autosize:
10920  * @tree_view: A #GtkTreeView.
10921  *
10922  * Resizes all columns to their optimal width. Only works after the
10923  * treeview has been realized.
10924  **/
10925 void
10926 gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
10927 {
10928   gboolean dirty = FALSE;
10929   GList *list;
10930   GtkTreeViewColumn *column;
10931
10932   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10933
10934   for (list = tree_view->priv->columns; list; list = list->next)
10935     {
10936       column = list->data;
10937       if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
10938         continue;
10939       _gtk_tree_view_column_cell_set_dirty (column, TRUE);
10940       dirty = TRUE;
10941     }
10942
10943   if (dirty)
10944     gtk_widget_queue_resize (GTK_WIDGET (tree_view));
10945 }
10946
10947 /**
10948  * gtk_tree_view_set_headers_clickable:
10949  * @tree_view: A #GtkTreeView.
10950  * @setting: %TRUE if the columns are clickable.
10951  *
10952  * Allow the column title buttons to be clicked.
10953  **/
10954 void
10955 gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
10956                                      gboolean   setting)
10957 {
10958   GList *list;
10959
10960   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
10961
10962   for (list = tree_view->priv->columns; list; list = list->next)
10963     gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
10964
10965   g_object_notify (G_OBJECT (tree_view), "headers-clickable");
10966 }
10967
10968
10969 /**
10970  * gtk_tree_view_get_headers_clickable:
10971  * @tree_view: A #GtkTreeView.
10972  *
10973  * Returns whether all header columns are clickable.
10974  *
10975  * Return value: %TRUE if all header columns are clickable, otherwise %FALSE
10976  *
10977  * Since: 2.10
10978  **/
10979 gboolean
10980 gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
10981 {
10982   GList *list;
10983
10984   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
10985
10986   for (list = tree_view->priv->columns; list; list = list->next)
10987     if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
10988       return FALSE;
10989
10990   return TRUE;
10991 }
10992
10993 /**
10994  * gtk_tree_view_set_rules_hint
10995  * @tree_view: a #GtkTreeView
10996  * @setting: %TRUE if the tree requires reading across rows
10997  *
10998  * This function tells GTK+ that the user interface for your
10999  * application requires users to read across tree rows and associate
11000  * cells with one another. By default, GTK+ will then render the tree
11001  * with alternating row colors. Do <emphasis>not</emphasis> use it
11002  * just because you prefer the appearance of the ruled tree; that's a
11003  * question for the theme. Some themes will draw tree rows in
11004  * alternating colors even when rules are turned off, and users who
11005  * prefer that appearance all the time can choose those themes. You
11006  * should call this function only as a <emphasis>semantic</emphasis>
11007  * hint to the theme engine that your tree makes alternating colors
11008  * useful from a functional standpoint (since it has lots of columns,
11009  * generally).
11010  *
11011  **/
11012 void
11013 gtk_tree_view_set_rules_hint (GtkTreeView  *tree_view,
11014                               gboolean      setting)
11015 {
11016   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11017
11018   setting = setting != FALSE;
11019
11020   if (tree_view->priv->has_rules != setting)
11021     {
11022       tree_view->priv->has_rules = setting;
11023       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
11024     }
11025
11026   g_object_notify (G_OBJECT (tree_view), "rules-hint");
11027 }
11028
11029 /**
11030  * gtk_tree_view_get_rules_hint
11031  * @tree_view: a #GtkTreeView
11032  *
11033  * Gets the setting set by gtk_tree_view_set_rules_hint().
11034  *
11035  * Return value: %TRUE if rules are useful for the user of this tree
11036  **/
11037 gboolean
11038 gtk_tree_view_get_rules_hint (GtkTreeView  *tree_view)
11039 {
11040   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
11041
11042   return tree_view->priv->has_rules;
11043 }
11044
11045 /* Public Column functions
11046  */
11047
11048 /**
11049  * gtk_tree_view_append_column:
11050  * @tree_view: A #GtkTreeView.
11051  * @column: The #GtkTreeViewColumn to add.
11052  *
11053  * Appends @column to the list of columns. If @tree_view has "fixed_height"
11054  * mode enabled, then @column must have its "sizing" property set to be
11055  * GTK_TREE_VIEW_COLUMN_FIXED.
11056  *
11057  * Return value: The number of columns in @tree_view after appending.
11058  **/
11059 gint
11060 gtk_tree_view_append_column (GtkTreeView       *tree_view,
11061                              GtkTreeViewColumn *column)
11062 {
11063   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11064   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11065   g_return_val_if_fail (column->tree_view == NULL, -1);
11066
11067   return gtk_tree_view_insert_column (tree_view, column, -1);
11068 }
11069
11070
11071 /**
11072  * gtk_tree_view_remove_column:
11073  * @tree_view: A #GtkTreeView.
11074  * @column: The #GtkTreeViewColumn to remove.
11075  *
11076  * Removes @column from @tree_view.
11077  *
11078  * Return value: The number of columns in @tree_view after removing.
11079  **/
11080 gint
11081 gtk_tree_view_remove_column (GtkTreeView       *tree_view,
11082                              GtkTreeViewColumn *column)
11083 {
11084   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11085   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11086   g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
11087
11088   if (tree_view->priv->focus_column == column)
11089     tree_view->priv->focus_column = NULL;
11090
11091   if (tree_view->priv->edited_column == column)
11092     {
11093       gtk_tree_view_stop_editing (tree_view, TRUE);
11094
11095       /* no need to, but just to be sure ... */
11096       tree_view->priv->edited_column = NULL;
11097     }
11098
11099   g_signal_handlers_disconnect_by_func (column,
11100                                         G_CALLBACK (column_sizing_notify),
11101                                         tree_view);
11102
11103   _gtk_tree_view_column_unset_tree_view (column);
11104
11105   tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
11106   tree_view->priv->n_columns--;
11107
11108   if (GTK_WIDGET_REALIZED (tree_view))
11109     {
11110       GList *list;
11111
11112       _gtk_tree_view_column_unrealize_button (column);
11113       for (list = tree_view->priv->columns; list; list = list->next)
11114         {
11115           GtkTreeViewColumn *tmp_column;
11116
11117           tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
11118           if (tmp_column->visible)
11119             _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
11120         }
11121
11122       if (tree_view->priv->n_columns == 0 &&
11123           gtk_tree_view_get_headers_visible (tree_view))
11124         gdk_window_hide (tree_view->priv->header_window);
11125
11126       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11127     }
11128
11129   g_object_unref (column);
11130   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11131
11132   return tree_view->priv->n_columns;
11133 }
11134
11135 /**
11136  * gtk_tree_view_insert_column:
11137  * @tree_view: A #GtkTreeView.
11138  * @column: The #GtkTreeViewColumn to be inserted.
11139  * @position: The position to insert @column in.
11140  *
11141  * This inserts the @column into the @tree_view at @position.  If @position is
11142  * -1, then the column is inserted at the end. If @tree_view has
11143  * "fixed_height" mode enabled, then @column must have its "sizing" property
11144  * set to be GTK_TREE_VIEW_COLUMN_FIXED.
11145  *
11146  * Return value: The number of columns in @tree_view after insertion.
11147  **/
11148 gint
11149 gtk_tree_view_insert_column (GtkTreeView       *tree_view,
11150                              GtkTreeViewColumn *column,
11151                              gint               position)
11152 {
11153   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11154   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
11155   g_return_val_if_fail (column->tree_view == NULL, -1);
11156
11157   if (tree_view->priv->fixed_height_mode)
11158     g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
11159                           == GTK_TREE_VIEW_COLUMN_FIXED, -1);
11160
11161   g_object_ref_sink (column);
11162
11163   if (tree_view->priv->n_columns == 0 &&
11164       GTK_WIDGET_REALIZED (tree_view) &&
11165       gtk_tree_view_get_headers_visible (tree_view))
11166     {
11167       gdk_window_show (tree_view->priv->header_window);
11168     }
11169
11170   g_signal_connect (column, "notify::sizing",
11171                     G_CALLBACK (column_sizing_notify), tree_view);
11172
11173   tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
11174                                             column, position);
11175   tree_view->priv->n_columns++;
11176
11177   _gtk_tree_view_column_set_tree_view (column, tree_view);
11178
11179   if (GTK_WIDGET_REALIZED (tree_view))
11180     {
11181       GList *list;
11182
11183       _gtk_tree_view_column_realize_button (column);
11184
11185       for (list = tree_view->priv->columns; list; list = list->next)
11186         {
11187           column = GTK_TREE_VIEW_COLUMN (list->data);
11188           if (column->visible)
11189             _gtk_tree_view_column_cell_set_dirty (column, TRUE);
11190         }
11191       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11192     }
11193
11194   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11195
11196   return tree_view->priv->n_columns;
11197 }
11198
11199 /**
11200  * gtk_tree_view_insert_column_with_attributes:
11201  * @tree_view: A #GtkTreeView
11202  * @position: The position to insert the new column in.
11203  * @title: The title to set the header to.
11204  * @cell: The #GtkCellRenderer.
11205  * @Varargs: A %NULL-terminated list of attributes.
11206  *
11207  * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
11208  * @position.  If @position is -1, then the newly created column is inserted at
11209  * the end.  The column is initialized with the attributes given. If @tree_view
11210  * has "fixed_height" mode enabled, then the new column will have its sizing
11211  * property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11212  *
11213  * Return value: The number of columns in @tree_view after insertion.
11214  **/
11215 gint
11216 gtk_tree_view_insert_column_with_attributes (GtkTreeView     *tree_view,
11217                                              gint             position,
11218                                              const gchar     *title,
11219                                              GtkCellRenderer *cell,
11220                                              ...)
11221 {
11222   GtkTreeViewColumn *column;
11223   gchar *attribute;
11224   va_list args;
11225   gint column_id;
11226
11227   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11228
11229   column = gtk_tree_view_column_new ();
11230   if (tree_view->priv->fixed_height_mode)
11231     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11232
11233   gtk_tree_view_column_set_title (column, title);
11234   gtk_tree_view_column_pack_start (column, cell, TRUE);
11235
11236   va_start (args, cell);
11237
11238   attribute = va_arg (args, gchar *);
11239
11240   while (attribute != NULL)
11241     {
11242       column_id = va_arg (args, gint);
11243       gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
11244       attribute = va_arg (args, gchar *);
11245     }
11246
11247   va_end (args);
11248
11249   gtk_tree_view_insert_column (tree_view, column, position);
11250
11251   return tree_view->priv->n_columns;
11252 }
11253
11254 /**
11255  * gtk_tree_view_insert_column_with_data_func:
11256  * @tree_view: a #GtkTreeView
11257  * @position: Position to insert, -1 for append
11258  * @title: column title
11259  * @cell: cell renderer for column
11260  * @func: function to set attributes of cell renderer
11261  * @data: data for @func
11262  * @dnotify: destroy notifier for @data
11263  *
11264  * Convenience function that inserts a new column into the #GtkTreeView
11265  * with the given cell renderer and a #GtkCellDataFunc to set cell renderer
11266  * attributes (normally using data from the model). See also
11267  * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
11268  * If @tree_view has "fixed_height" mode enabled, then the new column will have its
11269  * "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
11270  *
11271  * Return value: number of columns in the tree view post-insert
11272  **/
11273 gint
11274 gtk_tree_view_insert_column_with_data_func  (GtkTreeView               *tree_view,
11275                                              gint                       position,
11276                                              const gchar               *title,
11277                                              GtkCellRenderer           *cell,
11278                                              GtkTreeCellDataFunc        func,
11279                                              gpointer                   data,
11280                                              GDestroyNotify             dnotify)
11281 {
11282   GtkTreeViewColumn *column;
11283
11284   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
11285
11286   column = gtk_tree_view_column_new ();
11287   if (tree_view->priv->fixed_height_mode)
11288     gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
11289
11290   gtk_tree_view_column_set_title (column, title);
11291   gtk_tree_view_column_pack_start (column, cell, TRUE);
11292   gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
11293
11294   gtk_tree_view_insert_column (tree_view, column, position);
11295
11296   return tree_view->priv->n_columns;
11297 }
11298
11299 /**
11300  * gtk_tree_view_get_column:
11301  * @tree_view: A #GtkTreeView.
11302  * @n: The position of the column, counting from 0.
11303  *
11304  * Gets the #GtkTreeViewColumn at the given position in the #tree_view.
11305  *
11306  * Return value: The #GtkTreeViewColumn, or %NULL if the position is outside the
11307  * range of columns.
11308  **/
11309 GtkTreeViewColumn *
11310 gtk_tree_view_get_column (GtkTreeView *tree_view,
11311                           gint         n)
11312 {
11313   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11314
11315   if (n < 0 || n >= tree_view->priv->n_columns)
11316     return NULL;
11317
11318   if (tree_view->priv->columns == NULL)
11319     return NULL;
11320
11321   return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
11322 }
11323
11324 /**
11325  * gtk_tree_view_get_columns:
11326  * @tree_view: A #GtkTreeView
11327  *
11328  * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
11329  * The returned list must be freed with g_list_free ().
11330  *
11331  * Return value: A list of #GtkTreeViewColumn s
11332  **/
11333 GList *
11334 gtk_tree_view_get_columns (GtkTreeView *tree_view)
11335 {
11336   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11337
11338   return g_list_copy (tree_view->priv->columns);
11339 }
11340
11341 /**
11342  * gtk_tree_view_move_column_after:
11343  * @tree_view: A #GtkTreeView
11344  * @column: The #GtkTreeViewColumn to be moved.
11345  * @base_column: The #GtkTreeViewColumn to be moved relative to, or %NULL.
11346  *
11347  * Moves @column to be after to @base_column.  If @base_column is %NULL, then
11348  * @column is placed in the first position.
11349  **/
11350 void
11351 gtk_tree_view_move_column_after (GtkTreeView       *tree_view,
11352                                  GtkTreeViewColumn *column,
11353                                  GtkTreeViewColumn *base_column)
11354 {
11355   GList *column_list_el, *base_el = NULL;
11356
11357   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11358
11359   column_list_el = g_list_find (tree_view->priv->columns, column);
11360   g_return_if_fail (column_list_el != NULL);
11361
11362   if (base_column)
11363     {
11364       base_el = g_list_find (tree_view->priv->columns, base_column);
11365       g_return_if_fail (base_el != NULL);
11366     }
11367
11368   if (column_list_el->prev == base_el)
11369     return;
11370
11371   tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
11372   if (base_el == NULL)
11373     {
11374       column_list_el->prev = NULL;
11375       column_list_el->next = tree_view->priv->columns;
11376       if (column_list_el->next)
11377         column_list_el->next->prev = column_list_el;
11378       tree_view->priv->columns = column_list_el;
11379     }
11380   else
11381     {
11382       column_list_el->prev = base_el;
11383       column_list_el->next = base_el->next;
11384       if (column_list_el->next)
11385         column_list_el->next->prev = column_list_el;
11386       base_el->next = column_list_el;
11387     }
11388
11389   if (GTK_WIDGET_REALIZED (tree_view))
11390     {
11391       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
11392       gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
11393     }
11394
11395   g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
11396 }
11397
11398 /**
11399  * gtk_tree_view_set_expander_column:
11400  * @tree_view: A #GtkTreeView
11401  * @column: %NULL, or the column to draw the expander arrow at.
11402  *
11403  * Sets the column to draw the expander arrow at. It must be in @tree_view.
11404  * If @column is %NULL, then the expander arrow is always at the first
11405  * visible column.
11406  *
11407  * If you do not want expander arrow to appear in your tree, set the
11408  * expander column to a hidden column.
11409  **/
11410 void
11411 gtk_tree_view_set_expander_column (GtkTreeView       *tree_view,
11412                                    GtkTreeViewColumn *column)
11413 {
11414   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11415   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
11416
11417   if (tree_view->priv->expander_column != column)
11418     {
11419       GList *list;
11420
11421       if (column)
11422         {
11423           /* Confirm that column is in tree_view */
11424           for (list = tree_view->priv->columns; list; list = list->next)
11425             if (list->data == column)
11426               break;
11427           g_return_if_fail (list != NULL);
11428         }
11429
11430       tree_view->priv->expander_column = column;
11431       g_object_notify (G_OBJECT (tree_view), "expander-column");
11432     }
11433 }
11434
11435 /**
11436  * gtk_tree_view_get_expander_column:
11437  * @tree_view: A #GtkTreeView
11438  *
11439  * Returns the column that is the current expander column.  This
11440  * column has the expander arrow drawn next to it.
11441  *
11442  * Return value: The expander column.
11443  **/
11444 GtkTreeViewColumn *
11445 gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
11446 {
11447   GList *list;
11448
11449   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
11450
11451   for (list = tree_view->priv->columns; list; list = list->next)
11452     if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
11453       return (GtkTreeViewColumn *) list->data;
11454   return NULL;
11455 }
11456
11457
11458 /**
11459  * gtk_tree_view_set_column_drag_function:
11460  * @tree_view: A #GtkTreeView.
11461  * @func: A function to determine which columns are reorderable, or %NULL.
11462  * @user_data: User data to be passed to @func, or %NULL
11463  * @destroy: Destroy notifier for @user_data, or %NULL
11464  *
11465  * Sets a user function for determining where a column may be dropped when
11466  * dragged.  This function is called on every column pair in turn at the
11467  * beginning of a column drag to determine where a drop can take place.  The
11468  * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
11469  * dragged, the two #GtkTreeViewColumn s determining the drop spot, and
11470  * @user_data.  If either of the #GtkTreeViewColumn arguments for the drop spot
11471  * are %NULL, then they indicate an edge.  If @func is set to be %NULL, then
11472  * @tree_view reverts to the default behavior of allowing all columns to be
11473  * dropped everywhere.
11474  **/
11475 void
11476 gtk_tree_view_set_column_drag_function (GtkTreeView               *tree_view,
11477                                         GtkTreeViewColumnDropFunc  func,
11478                                         gpointer                   user_data,
11479                                         GDestroyNotify             destroy)
11480 {
11481   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11482
11483   if (tree_view->priv->column_drop_func_data_destroy)
11484     tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
11485
11486   tree_view->priv->column_drop_func = func;
11487   tree_view->priv->column_drop_func_data = user_data;
11488   tree_view->priv->column_drop_func_data_destroy = destroy;
11489 }
11490
11491 /**
11492  * gtk_tree_view_scroll_to_point:
11493  * @tree_view: a #GtkTreeView
11494  * @tree_x: X coordinate of new top-left pixel of visible area, or -1
11495  * @tree_y: Y coordinate of new top-left pixel of visible area, or -1
11496  *
11497  * Scrolls the tree view such that the top-left corner of the visible
11498  * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
11499  * in tree coordinates.  The @tree_view must be realized before
11500  * this function is called.  If it isn't, you probably want to be
11501  * using gtk_tree_view_scroll_to_cell().
11502  *
11503  * If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
11504  **/
11505 void
11506 gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
11507                                gint         tree_x,
11508                                gint         tree_y)
11509 {
11510   GtkAdjustment *hadj;
11511   GtkAdjustment *vadj;
11512
11513   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11514   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
11515
11516   hadj = tree_view->priv->hadjustment;
11517   vadj = tree_view->priv->vadjustment;
11518
11519   if (tree_x != -1)
11520     gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper - hadj->page_size));
11521   if (tree_y != -1)
11522     gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper - vadj->page_size));
11523 }
11524
11525 /**
11526  * gtk_tree_view_scroll_to_cell:
11527  * @tree_view: A #GtkTreeView.
11528  * @path: The path of the row to move to, or %NULL.
11529  * @column: The #GtkTreeViewColumn to move horizontally to, or %NULL.
11530  * @use_align: whether to use alignment arguments, or %FALSE.
11531  * @row_align: The vertical alignment of the row specified by @path.
11532  * @col_align: The horizontal alignment of the column specified by @column.
11533  *
11534  * Moves the alignments of @tree_view to the position specified by @column and
11535  * @path.  If @column is %NULL, then no horizontal scrolling occurs.  Likewise,
11536  * if @path is %NULL no vertical scrolling occurs.  At a minimum, one of @column
11537  * or @path need to be non-%NULL.  @row_align determines where the row is
11538  * placed, and @col_align determines where @column is placed.  Both are expected
11539  * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
11540  * right/bottom alignment, 0.5 means center.
11541  *
11542  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
11543  * tree does the minimum amount of work to scroll the cell onto the screen.
11544  * This means that the cell will be scrolled to the edge closest to its current
11545  * position.  If the cell is currently visible on the screen, nothing is done.
11546  *
11547  * This function only works if the model is set, and @path is a valid row on the
11548  * model.  If the model changes before the @tree_view is realized, the centered
11549  * path will be modified to reflect this change.
11550  **/
11551 void
11552 gtk_tree_view_scroll_to_cell (GtkTreeView       *tree_view,
11553                               GtkTreePath       *path,
11554                               GtkTreeViewColumn *column,
11555                               gboolean           use_align,
11556                               gfloat             row_align,
11557                               gfloat             col_align)
11558 {
11559   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11560   g_return_if_fail (tree_view->priv->model != NULL);
11561   g_return_if_fail (tree_view->priv->tree != NULL);
11562   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
11563   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
11564   g_return_if_fail (path != NULL || column != NULL);
11565
11566 #if 0
11567   g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
11568            gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
11569 #endif
11570   row_align = CLAMP (row_align, 0.0, 1.0);
11571   col_align = CLAMP (col_align, 0.0, 1.0);
11572
11573
11574   /* Note: Despite the benefits that come from having one code path for the
11575    * scrolling code, we short-circuit validate_visible_area's immplementation as
11576    * it is much slower than just going to the point.
11577    */
11578   if (! GTK_WIDGET_VISIBLE (tree_view) ||
11579       ! GTK_WIDGET_REALIZED (tree_view) ||
11580       GTK_WIDGET_ALLOC_NEEDED (tree_view) ||
11581       GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
11582     {
11583       if (tree_view->priv->scroll_to_path)
11584         gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
11585
11586       tree_view->priv->scroll_to_path = NULL;
11587       tree_view->priv->scroll_to_column = NULL;
11588
11589       if (path)
11590         tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
11591       if (column)
11592         tree_view->priv->scroll_to_column = column;
11593       tree_view->priv->scroll_to_use_align = use_align;
11594       tree_view->priv->scroll_to_row_align = row_align;
11595       tree_view->priv->scroll_to_col_align = col_align;
11596
11597       install_presize_handler (tree_view);
11598     }
11599   else
11600     {
11601       GdkRectangle cell_rect;
11602       GdkRectangle vis_rect;
11603       gint dest_x, dest_y;
11604
11605       gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
11606       gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
11607
11608       cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
11609
11610       dest_x = vis_rect.x;
11611       dest_y = vis_rect.y;
11612
11613       if (column)
11614         {
11615           if (use_align)
11616             {
11617               dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
11618             }
11619           else
11620             {
11621               if (cell_rect.x < vis_rect.x)
11622                 dest_x = cell_rect.x;
11623               if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
11624                 dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
11625             }
11626         }
11627
11628       if (path)
11629         {
11630           if (use_align)
11631             {
11632               dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
11633               dest_y = MAX (dest_y, 0);
11634             }
11635           else
11636             {
11637               if (cell_rect.y < vis_rect.y)
11638                 dest_y = cell_rect.y;
11639               if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
11640                 dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
11641             }
11642         }
11643
11644       gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
11645     }
11646 }
11647
11648 /**
11649  * gtk_tree_view_row_activated:
11650  * @tree_view: A #GtkTreeView
11651  * @path: The #GtkTreePath to be activated.
11652  * @column: The #GtkTreeViewColumn to be activated.
11653  *
11654  * Activates the cell determined by @path and @column.
11655  **/
11656 void
11657 gtk_tree_view_row_activated (GtkTreeView       *tree_view,
11658                              GtkTreePath       *path,
11659                              GtkTreeViewColumn *column)
11660 {
11661   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11662
11663   g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
11664 }
11665
11666
11667 static void
11668 gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
11669                                           GtkRBNode *node,
11670                                           gpointer   data)
11671 {
11672   GtkTreeView *tree_view = data;
11673
11674   if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
11675       node->children)
11676     {
11677       GtkTreePath *path;
11678       GtkTreeIter iter;
11679
11680       path = _gtk_tree_view_find_path (tree_view, tree, node);
11681       gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11682
11683       g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
11684
11685       gtk_tree_path_free (path);
11686     }
11687
11688   if (node->children)
11689     _gtk_rbtree_traverse (node->children,
11690                           node->children->root,
11691                           G_PRE_ORDER,
11692                           gtk_tree_view_expand_all_emission_helper,
11693                           tree_view);
11694 }
11695
11696 /**
11697  * gtk_tree_view_expand_all:
11698  * @tree_view: A #GtkTreeView.
11699  *
11700  * Recursively expands all nodes in the @tree_view.
11701  **/
11702 void
11703 gtk_tree_view_expand_all (GtkTreeView *tree_view)
11704 {
11705   GtkTreePath *path;
11706   GtkRBTree *tree;
11707   GtkRBNode *node;
11708
11709   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11710
11711   if (tree_view->priv->tree == NULL)
11712     return;
11713
11714   path = gtk_tree_path_new_first ();
11715   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
11716
11717   while (node)
11718     {
11719       gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
11720       node = _gtk_rbtree_next (tree, node);
11721       gtk_tree_path_next (path);
11722   }
11723
11724   gtk_tree_path_free (path);
11725 }
11726
11727 /* Timeout to animate the expander during expands and collapses */
11728 static gboolean
11729 expand_collapse_timeout (gpointer data)
11730 {
11731   return do_expand_collapse (data);
11732 }
11733
11734 static void
11735 add_expand_collapse_timeout (GtkTreeView *tree_view,
11736                              GtkRBTree   *tree,
11737                              GtkRBNode   *node,
11738                              gboolean     expand)
11739 {
11740   if (tree_view->priv->expand_collapse_timeout != 0)
11741     return;
11742
11743   tree_view->priv->expand_collapse_timeout =
11744       gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
11745   tree_view->priv->expanded_collapsed_tree = tree;
11746   tree_view->priv->expanded_collapsed_node = node;
11747
11748   if (expand)
11749     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11750   else
11751     GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11752 }
11753
11754 static void
11755 remove_expand_collapse_timeout (GtkTreeView *tree_view)
11756 {
11757   if (tree_view->priv->expand_collapse_timeout)
11758     {
11759       g_source_remove (tree_view->priv->expand_collapse_timeout);
11760       tree_view->priv->expand_collapse_timeout = 0;
11761     }
11762
11763   if (tree_view->priv->expanded_collapsed_node != NULL)
11764     {
11765       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
11766       GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11767
11768       tree_view->priv->expanded_collapsed_node = NULL;
11769     }
11770 }
11771
11772 static void
11773 cancel_arrow_animation (GtkTreeView *tree_view)
11774 {
11775   if (tree_view->priv->expand_collapse_timeout)
11776     {
11777       while (do_expand_collapse (tree_view));
11778
11779       remove_expand_collapse_timeout (tree_view);
11780     }
11781 }
11782
11783 static gboolean
11784 do_expand_collapse (GtkTreeView *tree_view)
11785 {
11786   GtkRBNode *node;
11787   GtkRBTree *tree;
11788   gboolean expanding;
11789   gboolean redraw;
11790
11791   redraw = FALSE;
11792   expanding = TRUE;
11793
11794   node = tree_view->priv->expanded_collapsed_node;
11795   tree = tree_view->priv->expanded_collapsed_tree;
11796
11797   if (node->children == NULL)
11798     expanding = FALSE;
11799
11800   if (expanding)
11801     {
11802       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11803         {
11804           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11805           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11806
11807           redraw = TRUE;
11808
11809         }
11810       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11811         {
11812           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11813
11814           redraw = TRUE;
11815         }
11816     }
11817   else
11818     {
11819       if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
11820         {
11821           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
11822           GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11823
11824           redraw = TRUE;
11825         }
11826       else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
11827         {
11828           GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
11829
11830           redraw = TRUE;
11831
11832         }
11833     }
11834
11835   if (redraw)
11836     {
11837       gtk_tree_view_queue_draw_arrow (tree_view, tree, node, NULL);
11838
11839       return TRUE;
11840     }
11841
11842   return FALSE;
11843 }
11844
11845 /**
11846  * gtk_tree_view_collapse_all:
11847  * @tree_view: A #GtkTreeView.
11848  *
11849  * Recursively collapses all visible, expanded nodes in @tree_view.
11850  **/
11851 void
11852 gtk_tree_view_collapse_all (GtkTreeView *tree_view)
11853 {
11854   GtkRBTree *tree;
11855   GtkRBNode *node;
11856   GtkTreePath *path;
11857   gint *indices;
11858
11859   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11860
11861   if (tree_view->priv->tree == NULL)
11862     return;
11863
11864   path = gtk_tree_path_new ();
11865   gtk_tree_path_down (path);
11866   indices = gtk_tree_path_get_indices (path);
11867
11868   tree = tree_view->priv->tree;
11869   node = tree->root;
11870   while (node && node->left != tree->nil)
11871     node = node->left;
11872
11873   while (node)
11874     {
11875       if (node->children)
11876         gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
11877       indices[0]++;
11878       node = _gtk_rbtree_next (tree, node);
11879     }
11880
11881   gtk_tree_path_free (path);
11882 }
11883
11884 /**
11885  * gtk_tree_view_expand_to_path:
11886  * @tree_view: A #GtkTreeView.
11887  * @path: path to a row.
11888  *
11889  * Expands the row at @path. This will also expand all parent rows of
11890  * @path as necessary.
11891  *
11892  * Since: 2.2
11893  **/
11894 void
11895 gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
11896                               GtkTreePath *path)
11897 {
11898   gint i, depth;
11899   gint *indices;
11900   GtkTreePath *tmp;
11901
11902   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
11903   g_return_if_fail (path != NULL);
11904
11905   depth = gtk_tree_path_get_depth (path);
11906   indices = gtk_tree_path_get_indices (path);
11907
11908   tmp = gtk_tree_path_new ();
11909   g_return_if_fail (tmp != NULL);
11910
11911   for (i = 0; i < depth; i++)
11912     {
11913       gtk_tree_path_append_index (tmp, indices[i]);
11914       gtk_tree_view_expand_row (tree_view, tmp, FALSE);
11915     }
11916
11917   gtk_tree_path_free (tmp);
11918 }
11919
11920 /* FIXME the bool return values for expand_row and collapse_row are
11921  * not analagous; they should be TRUE if the row had children and
11922  * was not already in the requested state.
11923  */
11924
11925
11926 static gboolean
11927 gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
11928                                GtkTreePath *path,
11929                                GtkRBTree   *tree,
11930                                GtkRBNode   *node,
11931                                gboolean     open_all,
11932                                gboolean     animate)
11933 {
11934   GtkTreeIter iter;
11935   GtkTreeIter temp;
11936   gboolean expand;
11937
11938   if (animate)
11939     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
11940                   "gtk-enable-animations", &animate,
11941                   NULL);
11942
11943   remove_auto_expand_timeout (tree_view);
11944
11945   if (node->children && !open_all)
11946     return FALSE;
11947
11948   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
11949     return FALSE;
11950
11951   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
11952   if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11953     return FALSE;
11954
11955
11956    if (node->children && open_all)
11957     {
11958       gboolean retval = FALSE;
11959       GtkTreePath *tmp_path = gtk_tree_path_copy (path);
11960
11961       gtk_tree_path_append_index (tmp_path, 0);
11962       tree = node->children;
11963       node = tree->root;
11964       while (node->left != tree->nil)
11965         node = node->left;
11966       /* try to expand the children */
11967       do
11968         {
11969          gboolean t;
11970          t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
11971                                             TRUE, animate);
11972          if (t)
11973            retval = TRUE;
11974
11975          gtk_tree_path_next (tmp_path);
11976          node = _gtk_rbtree_next (tree, node);
11977        }
11978       while (node != NULL);
11979
11980       gtk_tree_path_free (tmp_path);
11981
11982       return retval;
11983     }
11984
11985   g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
11986
11987   if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
11988     return FALSE;
11989
11990   if (expand)
11991     return FALSE;
11992
11993   node->children = _gtk_rbtree_new ();
11994   node->children->parent_tree = tree;
11995   node->children->parent_node = node;
11996
11997   gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
11998
11999   gtk_tree_view_build_tree (tree_view,
12000                             node->children,
12001                             &temp,
12002                             gtk_tree_path_get_depth (path) + 1,
12003                             open_all);
12004
12005   remove_expand_collapse_timeout (tree_view);
12006
12007   if (animate)
12008     add_expand_collapse_timeout (tree_view, tree, node, TRUE);
12009
12010   install_presize_handler (tree_view);
12011
12012   g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
12013   if (open_all && node->children)
12014     {
12015       _gtk_rbtree_traverse (node->children,
12016                             node->children->root,
12017                             G_PRE_ORDER,
12018                             gtk_tree_view_expand_all_emission_helper,
12019                             tree_view);
12020     }
12021   return TRUE;
12022 }
12023
12024
12025 /**
12026  * gtk_tree_view_expand_row:
12027  * @tree_view: a #GtkTreeView
12028  * @path: path to a row
12029  * @open_all: whether to recursively expand, or just expand immediate children
12030  *
12031  * Opens the row so its children are visible.
12032  *
12033  * Return value: %TRUE if the row existed and had children
12034  **/
12035 gboolean
12036 gtk_tree_view_expand_row (GtkTreeView *tree_view,
12037                           GtkTreePath *path,
12038                           gboolean     open_all)
12039 {
12040   GtkRBTree *tree;
12041   GtkRBNode *node;
12042
12043   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12044   g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
12045   g_return_val_if_fail (path != NULL, FALSE);
12046
12047   if (_gtk_tree_view_find_node (tree_view,
12048                                 path,
12049                                 &tree,
12050                                 &node))
12051     return FALSE;
12052
12053   if (tree != NULL)
12054     return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
12055   else
12056     return FALSE;
12057 }
12058
12059 static gboolean
12060 gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
12061                                  GtkTreePath *path,
12062                                  GtkRBTree   *tree,
12063                                  GtkRBNode   *node,
12064                                  gboolean     animate)
12065 {
12066   GtkTreeIter iter;
12067   GtkTreeIter children;
12068   gboolean collapse;
12069   gint x, y;
12070   GList *list;
12071   GdkWindow *child, *parent;
12072
12073   if (animate)
12074     g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
12075                   "gtk-enable-animations", &animate,
12076                   NULL);
12077
12078   remove_auto_expand_timeout (tree_view);
12079
12080   if (node->children == NULL)
12081     return FALSE;
12082
12083   gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
12084
12085   g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
12086
12087   if (collapse)
12088     return FALSE;
12089
12090   /* if the prelighted node is a child of us, we want to unprelight it.  We have
12091    * a chance to prelight the correct node below */
12092
12093   if (tree_view->priv->prelight_tree)
12094     {
12095       GtkRBTree *parent_tree;
12096       GtkRBNode *parent_node;
12097
12098       parent_tree = tree_view->priv->prelight_tree->parent_tree;
12099       parent_node = tree_view->priv->prelight_tree->parent_node;
12100       while (parent_tree)
12101         {
12102           if (parent_tree == tree && parent_node == node)
12103             {
12104               ensure_unprelighted (tree_view);
12105               break;
12106             }
12107           parent_node = parent_tree->parent_node;
12108           parent_tree = parent_tree->parent_tree;
12109         }
12110     }
12111
12112   TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
12113
12114   for (list = tree_view->priv->columns; list; list = list->next)
12115     {
12116       GtkTreeViewColumn *column = list->data;
12117
12118       if (column->visible == FALSE)
12119         continue;
12120       if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
12121         _gtk_tree_view_column_cell_set_dirty (column, TRUE);
12122     }
12123
12124   if (tree_view->priv->destroy_count_func)
12125     {
12126       GtkTreePath *child_path;
12127       gint child_count = 0;
12128       child_path = gtk_tree_path_copy (path);
12129       gtk_tree_path_down (child_path);
12130       if (node->children)
12131         _gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
12132       tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
12133       gtk_tree_path_free (child_path);
12134     }
12135
12136   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12137     {
12138       GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12139
12140       if (gtk_tree_path_is_ancestor (path, cursor_path))
12141         {
12142           gtk_tree_row_reference_free (tree_view->priv->cursor);
12143           tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12144                                                                       tree_view->priv->model,
12145                                                                       path);
12146         }
12147       gtk_tree_path_free (cursor_path);
12148     }
12149
12150   if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
12151     {
12152       GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
12153       if (gtk_tree_path_is_ancestor (path, anchor_path))
12154         {
12155           gtk_tree_row_reference_free (tree_view->priv->anchor);
12156           tree_view->priv->anchor = NULL;
12157         }
12158       gtk_tree_path_free (anchor_path);
12159     }
12160
12161   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press))
12162     {
12163       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press);
12164       if (gtk_tree_path_is_ancestor (path, lsc))
12165         {
12166           gtk_tree_row_reference_free (tree_view->priv->last_button_press);
12167           tree_view->priv->last_button_press = NULL;
12168         }
12169       gtk_tree_path_free (lsc);
12170     }
12171
12172   if (gtk_tree_row_reference_valid (tree_view->priv->last_button_press_2))
12173     {
12174       GtkTreePath *lsc = gtk_tree_row_reference_get_path (tree_view->priv->last_button_press_2);
12175       if (gtk_tree_path_is_ancestor (path, lsc))
12176         {
12177           gtk_tree_row_reference_free (tree_view->priv->last_button_press_2);
12178           tree_view->priv->last_button_press_2 = NULL;
12179         }
12180       gtk_tree_path_free (lsc);
12181     }
12182
12183   remove_expand_collapse_timeout (tree_view);
12184
12185   if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
12186     {
12187       _gtk_rbtree_remove (node->children);
12188       g_signal_emit_by_name (tree_view->priv->selection, "changed");
12189     }
12190   else
12191     _gtk_rbtree_remove (node->children);
12192
12193   if (animate)
12194     add_expand_collapse_timeout (tree_view, tree, node, FALSE);
12195
12196   if (GTK_WIDGET_MAPPED (tree_view))
12197     {
12198       gtk_widget_queue_resize (GTK_WIDGET (tree_view));
12199     }
12200
12201   g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
12202
12203   if (GTK_WIDGET_MAPPED (tree_view))
12204     {
12205       /* now that we've collapsed all rows, we want to try to set the prelight
12206        * again. To do this, we fake a motion event and send it to ourselves. */
12207
12208       child = tree_view->priv->bin_window;
12209       parent = gdk_window_get_parent (child);
12210
12211       if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
12212         {
12213           GdkEventMotion event;
12214           gint child_x, child_y;
12215
12216           gdk_window_get_position (child, &child_x, &child_y);
12217
12218           event.window = tree_view->priv->bin_window;
12219           event.x = x - child_x;
12220           event.y = y - child_y;
12221
12222           /* despite the fact this isn't a real event, I'm almost positive it will
12223            * never trigger a drag event.  maybe_drag is the only function that uses
12224            * more than just event.x and event.y. */
12225           gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
12226         }
12227     }
12228
12229   return TRUE;
12230 }
12231
12232 /**
12233  * gtk_tree_view_collapse_row:
12234  * @tree_view: a #GtkTreeView
12235  * @path: path to a row in the @tree_view
12236  *
12237  * Collapses a row (hides its child rows, if they exist).
12238  *
12239  * Return value: %TRUE if the row was collapsed.
12240  **/
12241 gboolean
12242 gtk_tree_view_collapse_row (GtkTreeView *tree_view,
12243                             GtkTreePath *path)
12244 {
12245   GtkRBTree *tree;
12246   GtkRBNode *node;
12247
12248   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12249   g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
12250   g_return_val_if_fail (path != NULL, FALSE);
12251
12252   if (_gtk_tree_view_find_node (tree_view,
12253                                 path,
12254                                 &tree,
12255                                 &node))
12256     return FALSE;
12257
12258   if (tree == NULL || node->children == NULL)
12259     return FALSE;
12260
12261   return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
12262 }
12263
12264 static void
12265 gtk_tree_view_map_expanded_rows_helper (GtkTreeView            *tree_view,
12266                                         GtkRBTree              *tree,
12267                                         GtkTreePath            *path,
12268                                         GtkTreeViewMappingFunc  func,
12269                                         gpointer                user_data)
12270 {
12271   GtkRBNode *node;
12272
12273   if (tree == NULL || tree->root == NULL)
12274     return;
12275
12276   node = tree->root;
12277
12278   while (node && node->left != tree->nil)
12279     node = node->left;
12280
12281   while (node)
12282     {
12283       if (node->children)
12284         {
12285           (* func) (tree_view, path, user_data);
12286           gtk_tree_path_down (path);
12287           gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
12288           gtk_tree_path_up (path);
12289         }
12290       gtk_tree_path_next (path);
12291       node = _gtk_rbtree_next (tree, node);
12292     }
12293 }
12294
12295 /**
12296  * gtk_tree_view_map_expanded_rows:
12297  * @tree_view: A #GtkTreeView
12298  * @func: A function to be called
12299  * @data: User data to be passed to the function.
12300  *
12301  * Calls @func on all expanded rows.
12302  **/
12303 void
12304 gtk_tree_view_map_expanded_rows (GtkTreeView            *tree_view,
12305                                  GtkTreeViewMappingFunc  func,
12306                                  gpointer                user_data)
12307 {
12308   GtkTreePath *path;
12309
12310   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12311   g_return_if_fail (func != NULL);
12312
12313   path = gtk_tree_path_new_first ();
12314
12315   gtk_tree_view_map_expanded_rows_helper (tree_view,
12316                                           tree_view->priv->tree,
12317                                           path, func, user_data);
12318
12319   gtk_tree_path_free (path);
12320 }
12321
12322 /**
12323  * gtk_tree_view_row_expanded:
12324  * @tree_view: A #GtkTreeView.
12325  * @path: A #GtkTreePath to test expansion state.
12326  *
12327  * Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
12328  *
12329  * Return value: %TRUE if #path is expanded.
12330  **/
12331 gboolean
12332 gtk_tree_view_row_expanded (GtkTreeView *tree_view,
12333                             GtkTreePath *path)
12334 {
12335   GtkRBTree *tree;
12336   GtkRBNode *node;
12337
12338   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12339   g_return_val_if_fail (path != NULL, FALSE);
12340
12341   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12342
12343   if (node == NULL)
12344     return FALSE;
12345
12346   return (node->children != NULL);
12347 }
12348
12349 /**
12350  * gtk_tree_view_get_reorderable:
12351  * @tree_view: a #GtkTreeView
12352  *
12353  * Retrieves whether the user can reorder the tree via drag-and-drop. See
12354  * gtk_tree_view_set_reorderable().
12355  *
12356  * Return value: %TRUE if the tree can be reordered.
12357  **/
12358 gboolean
12359 gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
12360 {
12361   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
12362
12363   return tree_view->priv->reorderable;
12364 }
12365
12366 /**
12367  * gtk_tree_view_set_reorderable:
12368  * @tree_view: A #GtkTreeView.
12369  * @reorderable: %TRUE, if the tree can be reordered.
12370  *
12371  * This function is a convenience function to allow you to reorder
12372  * models that support the #GtkDragSourceIface and the
12373  * #GtkDragDestIface.  Both #GtkTreeStore and #GtkListStore support
12374  * these.  If @reorderable is %TRUE, then the user can reorder the
12375  * model by dragging and dropping rows. The developer can listen to
12376  * these changes by connecting to the model's row_inserted and
12377  * row_deleted signals. The reordering is implemented by setting up
12378  * the tree view as a drag source and destination. Therefore, drag and
12379  * drop can not be used in a reorderable view for any other purpose.
12380  *
12381  * This function does not give you any degree of control over the order -- any
12382  * reordering is allowed.  If more control is needed, you should probably
12383  * handle drag and drop manually.
12384  **/
12385 void
12386 gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
12387                                gboolean     reorderable)
12388 {
12389   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12390
12391   reorderable = reorderable != FALSE;
12392
12393   if (tree_view->priv->reorderable == reorderable)
12394     return;
12395
12396   if (reorderable)
12397     {
12398       const GtkTargetEntry row_targets[] = {
12399         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
12400       };
12401
12402       gtk_tree_view_enable_model_drag_source (tree_view,
12403                                               GDK_BUTTON1_MASK,
12404                                               row_targets,
12405                                               G_N_ELEMENTS (row_targets),
12406                                               GDK_ACTION_MOVE);
12407       gtk_tree_view_enable_model_drag_dest (tree_view,
12408                                             row_targets,
12409                                             G_N_ELEMENTS (row_targets),
12410                                             GDK_ACTION_MOVE);
12411     }
12412   else
12413     {
12414       gtk_tree_view_unset_rows_drag_source (tree_view);
12415       gtk_tree_view_unset_rows_drag_dest (tree_view);
12416     }
12417
12418   tree_view->priv->reorderable = reorderable;
12419
12420   g_object_notify (G_OBJECT (tree_view), "reorderable");
12421 }
12422
12423 static void
12424 gtk_tree_view_real_set_cursor (GtkTreeView     *tree_view,
12425                                GtkTreePath     *path,
12426                                gboolean         clear_and_select,
12427                                gboolean         clamp_node)
12428 {
12429   GtkRBTree *tree = NULL;
12430   GtkRBNode *node = NULL;
12431
12432   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12433     {
12434       GtkTreePath *cursor_path;
12435       cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12436       gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
12437       gtk_tree_path_free (cursor_path);
12438     }
12439
12440   gtk_tree_row_reference_free (tree_view->priv->cursor);
12441   tree_view->priv->cursor = NULL;
12442
12443   /* One cannot set the cursor on a separator.   Also, if
12444    * _gtk_tree_view_find_node returns TRUE, it ran out of tree
12445    * before finding the tree and node belonging to path.  The
12446    * path maps to a non-existing path and we will silently bail out.
12447    * We unset tree and node to avoid further processing.
12448    */
12449   if (!row_is_separator (tree_view, NULL, path)
12450       && _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
12451     {
12452       tree_view->priv->cursor =
12453           gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
12454                                             tree_view->priv->model,
12455                                             path);
12456     }
12457   else
12458     {
12459       tree = NULL;
12460       node = NULL;
12461     }
12462
12463   if (tree != NULL)
12464     {
12465       GtkRBTree *new_tree = NULL;
12466       GtkRBNode *new_node = NULL;
12467
12468       if (clear_and_select && !tree_view->priv->ctrl_pressed)
12469         {
12470           GtkTreeSelectMode mode = 0;
12471
12472           if (tree_view->priv->ctrl_pressed)
12473             mode |= GTK_TREE_SELECT_MODE_TOGGLE;
12474           if (tree_view->priv->shift_pressed)
12475             mode |= GTK_TREE_SELECT_MODE_EXTEND;
12476
12477           _gtk_tree_selection_internal_select_node (tree_view->priv->selection,
12478                                                     node, tree, path, mode,
12479                                                     FALSE);
12480         }
12481
12482       /* We have to re-find tree and node here again, somebody might have
12483        * cleared the node or the whole tree in the GtkTreeSelection::changed
12484        * callback. If the nodes differ we bail out here.
12485        */
12486       _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
12487
12488       if (tree != new_tree || node != new_node)
12489         return;
12490
12491       if (clamp_node)
12492         {
12493           gtk_tree_view_clamp_node_visible (tree_view, tree, node);
12494           _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
12495         }
12496     }
12497
12498   g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
12499 }
12500
12501 /**
12502  * gtk_tree_view_get_cursor:
12503  * @tree_view: A #GtkTreeView
12504  * @path: A pointer to be filled with the current cursor path, or %NULL
12505  * @focus_column: A pointer to be filled with the current focus column, or %NULL
12506  *
12507  * Fills in @path and @focus_column with the current path and focus column.  If
12508  * the cursor isn't currently set, then *@path will be %NULL.  If no column
12509  * currently has focus, then *@focus_column will be %NULL.
12510  *
12511  * The returned #GtkTreePath must be freed with gtk_tree_path_free() when
12512  * you are done with it.
12513  **/
12514 void
12515 gtk_tree_view_get_cursor (GtkTreeView        *tree_view,
12516                           GtkTreePath       **path,
12517                           GtkTreeViewColumn **focus_column)
12518 {
12519   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12520
12521   if (path)
12522     {
12523       if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
12524         *path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
12525       else
12526         *path = NULL;
12527     }
12528
12529   if (focus_column)
12530     {
12531       *focus_column = tree_view->priv->focus_column;
12532     }
12533 }
12534
12535 /**
12536  * gtk_tree_view_set_cursor:
12537  * @tree_view: A #GtkTreeView
12538  * @path: A #GtkTreePath
12539  * @focus_column: A #GtkTreeViewColumn, or %NULL
12540  * @start_editing: %TRUE if the specified cell should start being edited.
12541  *
12542  * Sets the current keyboard focus to be at @path, and selects it.  This is
12543  * useful when you want to focus the user's attention on a particular row.  If
12544  * @focus_column is not %NULL, then focus is given to the column specified by
12545  * it. Additionally, if @focus_column is specified, and @start_editing is
12546  * %TRUE, then editing should be started in the specified cell.
12547  * This function is often followed by @gtk_widget_grab_focus (@tree_view)
12548  * in order to give keyboard focus to the widget.  Please note that editing
12549  * can only happen when the widget is realized.
12550  *
12551  * If @path is invalid for @model, the current cursor (if any) will be unset
12552  * and the function will return without failing.
12553  **/
12554 void
12555 gtk_tree_view_set_cursor (GtkTreeView       *tree_view,
12556                           GtkTreePath       *path,
12557                           GtkTreeViewColumn *focus_column,
12558                           gboolean           start_editing)
12559 {
12560   gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
12561                                     NULL, start_editing);
12562 }
12563
12564 /**
12565  * gtk_tree_view_set_cursor_on_cell:
12566  * @tree_view: A #GtkTreeView
12567  * @path: A #GtkTreePath
12568  * @focus_column: A #GtkTreeViewColumn, or %NULL
12569  * @focus_cell: A #GtkCellRenderer, or %NULL
12570  * @start_editing: %TRUE if the specified cell should start being edited.
12571  *
12572  * Sets the current keyboard focus to be at @path, and selects it.  This is
12573  * useful when you want to focus the user's attention on a particular row.  If
12574  * @focus_column is not %NULL, then focus is given to the column specified by
12575  * it. If @focus_column and @focus_cell are not %NULL, and @focus_column
12576  * contains 2 or more editable or activatable cells, then focus is given to
12577  * the cell specified by @focus_cell. Additionally, if @focus_column is
12578  * specified, and @start_editing is %TRUE, then editing should be started in
12579  * the specified cell.  This function is often followed by
12580  * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
12581  * widget.  Please note that editing can only happen when the widget is
12582  * realized.
12583  *
12584  * If @path is invalid for @model, the current cursor (if any) will be unset
12585  * and the function will return without failing.
12586  *
12587  * Since: 2.2
12588  **/
12589 void
12590 gtk_tree_view_set_cursor_on_cell (GtkTreeView       *tree_view,
12591                                   GtkTreePath       *path,
12592                                   GtkTreeViewColumn *focus_column,
12593                                   GtkCellRenderer   *focus_cell,
12594                                   gboolean           start_editing)
12595 {
12596   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12597   g_return_if_fail (path != NULL);
12598   g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
12599
12600   if (!tree_view->priv->model)
12601     return;
12602
12603   if (focus_cell)
12604     {
12605       g_return_if_fail (focus_column);
12606       g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
12607     }
12608
12609   /* cancel the current editing, if it exists */
12610   if (tree_view->priv->edited_column &&
12611       tree_view->priv->edited_column->editable_widget)
12612     gtk_tree_view_stop_editing (tree_view, TRUE);
12613
12614   gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
12615
12616   if (focus_column && focus_column->visible)
12617     {
12618       GList *list;
12619       gboolean column_in_tree = FALSE;
12620
12621       for (list = tree_view->priv->columns; list; list = list->next)
12622         if (list->data == focus_column)
12623           {
12624             column_in_tree = TRUE;
12625             break;
12626           }
12627       g_return_if_fail (column_in_tree);
12628       tree_view->priv->focus_column = focus_column;
12629       if (focus_cell)
12630         gtk_tree_view_column_focus_cell (focus_column, focus_cell);
12631       if (start_editing)
12632         gtk_tree_view_start_editing (tree_view, path);
12633     }
12634 }
12635
12636 /**
12637  * gtk_tree_view_get_bin_window:
12638  * @tree_view: A #GtkTreeView
12639  *
12640  * Returns the window that @tree_view renders to.  This is used primarily to
12641  * compare to <literal>event->window</literal> to confirm that the event on
12642  * @tree_view is on the right window.
12643  *
12644  * Return value: A #GdkWindow, or %NULL when @tree_view hasn't been realized yet
12645  **/
12646 GdkWindow *
12647 gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
12648 {
12649   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
12650
12651   return tree_view->priv->bin_window;
12652 }
12653
12654 /**
12655  * gtk_tree_view_get_path_at_pos:
12656  * @tree_view: A #GtkTreeView.
12657  * @x: The x position to be identified (relative to bin_window).
12658  * @y: The y position to be identified (relative to bin_window).
12659  * @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
12660  * @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
12661  * @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
12662  * @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
12663  *
12664  * Finds the path at the point (@x, @y), relative to bin_window coordinates
12665  * (please see gtk_tree_view_get_bin_window()).
12666  * That is, @x and @y are relative to an events coordinates. @x and @y must
12667  * come from an event on the @tree_view only where <literal>event->window ==
12668  * gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
12669  * things like popup menus. If @path is non-%NULL, then it will be filled
12670  * with the #GtkTreePath at that point.  This path should be freed with
12671  * gtk_tree_path_free().  If @column is non-%NULL, then it will be filled
12672  * with the column at that point.  @cell_x and @cell_y return the coordinates
12673  * relative to the cell background (i.e. the @background_area passed to
12674  * gtk_cell_renderer_render()).  This function is only meaningful if
12675  * @tree_view is realized.  Therefore this function will always return %FALSE
12676  * if @tree_view is not realized or does not have a model.
12677  *
12678  * For converting widget coordinates (eg. the ones you get from
12679  * GtkWidget::query-tooltip), please see
12680  * gtk_tree_view_convert_widget_to_bin_window_coords().
12681  *
12682  * Return value: %TRUE if a row exists at that coordinate.
12683  **/
12684 gboolean
12685 gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
12686                                gint                x,
12687                                gint                y,
12688                                GtkTreePath       **path,
12689                                GtkTreeViewColumn **column,
12690                                gint               *cell_x,
12691                                gint               *cell_y)
12692 {
12693   GtkRBTree *tree;
12694   GtkRBNode *node;
12695   gint y_offset;
12696
12697   g_return_val_if_fail (tree_view != NULL, FALSE);
12698
12699   if (path)
12700     *path = NULL;
12701   if (column)
12702     *column = NULL;
12703
12704   if (tree_view->priv->bin_window == NULL)
12705     return FALSE;
12706
12707   if (tree_view->priv->tree == NULL)
12708     return FALSE;
12709
12710   if (x > tree_view->priv->hadjustment->upper)
12711     return FALSE;
12712
12713   if (x < 0 || y < 0)
12714     return FALSE;
12715
12716   if (column || cell_x)
12717     {
12718       GtkTreeViewColumn *tmp_column;
12719       GtkTreeViewColumn *last_column = NULL;
12720       GList *list;
12721       gint remaining_x = x;
12722       gboolean found = FALSE;
12723       gboolean rtl;
12724
12725       rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
12726       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
12727            list;
12728            list = (rtl ? list->prev : list->next))
12729         {
12730           tmp_column = list->data;
12731
12732           if (tmp_column->visible == FALSE)
12733             continue;
12734
12735           last_column = tmp_column;
12736           if (remaining_x <= tmp_column->width)
12737             {
12738               found = TRUE;
12739
12740               if (column)
12741                 *column = tmp_column;
12742
12743               if (cell_x)
12744                 *cell_x = remaining_x;
12745
12746               break;
12747             }
12748           remaining_x -= tmp_column->width;
12749         }
12750
12751       /* If found is FALSE and there is a last_column, then it the remainder
12752        * space is in that area
12753        */
12754       if (!found)
12755         {
12756           if (last_column)
12757             {
12758               if (column)
12759                 *column = last_column;
12760
12761               if (cell_x)
12762                 *cell_x = last_column->width + remaining_x;
12763             }
12764           else
12765             {
12766               return FALSE;
12767             }
12768         }
12769     }
12770
12771   y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
12772                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
12773                                       &tree, &node);
12774
12775   if (tree == NULL)
12776     return FALSE;
12777
12778   if (cell_y)
12779     *cell_y = y_offset;
12780
12781   if (path)
12782     *path = _gtk_tree_view_find_path (tree_view, tree, node);
12783
12784   return TRUE;
12785 }
12786
12787
12788 /**
12789  * gtk_tree_view_get_cell_area:
12790  * @tree_view: a #GtkTreeView
12791  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12792  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
12793  * @rect: rectangle to fill with cell rect
12794  *
12795  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12796  * row specified by @path and the column specified by @column.  If @path is
12797  * %NULL, or points to a path not currently displayed, the @y and @height fields
12798  * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12799  * fields will be filled with 0.  The sum of all cell rects does not cover the
12800  * entire tree; there are extra pixels in between rows, for example. The
12801  * returned rectangle is equivalent to the @cell_area passed to
12802  * gtk_cell_renderer_render().  This function is only valid if @tree_view is
12803  * realized.
12804  **/
12805 void
12806 gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
12807                              GtkTreePath        *path,
12808                              GtkTreeViewColumn  *column,
12809                              GdkRectangle       *rect)
12810 {
12811   GtkRBTree *tree = NULL;
12812   GtkRBNode *node = NULL;
12813   gint vertical_separator;
12814   gint horizontal_separator;
12815
12816   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12817   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12818   g_return_if_fail (rect != NULL);
12819   g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
12820   g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
12821
12822   gtk_widget_style_get (GTK_WIDGET (tree_view),
12823                         "vertical-separator", &vertical_separator,
12824                         "horizontal-separator", &horizontal_separator,
12825                         NULL);
12826
12827   rect->x = 0;
12828   rect->y = 0;
12829   rect->width = 0;
12830   rect->height = 0;
12831
12832   if (column)
12833     {
12834       rect->x = column->button->allocation.x + horizontal_separator/2;
12835       rect->width = column->button->allocation.width - horizontal_separator;
12836     }
12837
12838   if (path)
12839     {
12840       gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
12841
12842       /* Get vertical coords */
12843       if ((!ret && tree == NULL) || ret)
12844         return;
12845
12846       rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
12847       rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
12848
12849       if (column &&
12850           gtk_tree_view_is_expander_column (tree_view, column))
12851         {
12852           gint depth = gtk_tree_path_get_depth (path);
12853           gboolean rtl;
12854
12855           rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
12856
12857           if (!rtl)
12858             rect->x += (depth - 1) * tree_view->priv->level_indentation;
12859           rect->width -= (depth - 1) * tree_view->priv->level_indentation;
12860
12861           if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
12862             {
12863               if (!rtl)
12864                 rect->x += depth * tree_view->priv->expander_size;
12865               rect->width -= depth * tree_view->priv->expander_size;
12866             }
12867
12868           rect->width = MAX (rect->width, 0);
12869         }
12870     }
12871 }
12872
12873 /**
12874  * gtk_tree_view_get_background_area:
12875  * @tree_view: a #GtkTreeView
12876  * @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
12877  * @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
12878  * @rect: rectangle to fill with cell background rect
12879  *
12880  * Fills the bounding rectangle in bin_window coordinates for the cell at the
12881  * row specified by @path and the column specified by @column.  If @path is
12882  * %NULL, or points to a node not found in the tree, the @y and @height fields of
12883  * the rectangle will be filled with 0. If @column is %NULL, the @x and @width
12884  * fields will be filled with 0.  The returned rectangle is equivalent to the
12885  * @background_area passed to gtk_cell_renderer_render().  These background
12886  * areas tile to cover the entire bin window.  Contrast with the @cell_area,
12887  * returned by gtk_tree_view_get_cell_area(), which returns only the cell
12888  * itself, excluding surrounding borders and the tree expander area.
12889  *
12890  **/
12891 void
12892 gtk_tree_view_get_background_area (GtkTreeView        *tree_view,
12893                                    GtkTreePath        *path,
12894                                    GtkTreeViewColumn  *column,
12895                                    GdkRectangle       *rect)
12896 {
12897   GtkRBTree *tree = NULL;
12898   GtkRBNode *node = NULL;
12899
12900   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12901   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
12902   g_return_if_fail (rect != NULL);
12903
12904   rect->x = 0;
12905   rect->y = 0;
12906   rect->width = 0;
12907   rect->height = 0;
12908
12909   if (path)
12910     {
12911       /* Get vertical coords */
12912
12913       if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
12914           tree == NULL)
12915         return;
12916
12917       rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
12918
12919       rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
12920     }
12921
12922   if (column)
12923     {
12924       gint x2 = 0;
12925
12926       gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
12927       rect->width = x2 - rect->x;
12928     }
12929 }
12930
12931 /**
12932  * gtk_tree_view_get_visible_rect:
12933  * @tree_view: a #GtkTreeView
12934  * @visible_rect: rectangle to fill
12935  *
12936  * Fills @visible_rect with the currently-visible region of the
12937  * buffer, in tree coordinates. Convert to bin_window coordinates with
12938  * gtk_tree_view_convert_tree_to_bin_window_coords().
12939  * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
12940  * scrollable area of the tree.
12941  **/
12942 void
12943 gtk_tree_view_get_visible_rect (GtkTreeView  *tree_view,
12944                                 GdkRectangle *visible_rect)
12945 {
12946   GtkWidget *widget;
12947
12948   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12949
12950   widget = GTK_WIDGET (tree_view);
12951
12952   if (visible_rect)
12953     {
12954       visible_rect->x = tree_view->priv->hadjustment->value;
12955       visible_rect->y = tree_view->priv->vadjustment->value;
12956       visible_rect->width = widget->allocation.width;
12957       visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
12958     }
12959 }
12960
12961 /**
12962  * gtk_tree_view_widget_to_tree_coords:
12963  * @tree_view: a #GtkTreeView
12964  * @wx: X coordinate relative to bin_window
12965  * @wy: Y coordinate relative to bin_window
12966  * @tx: return location for tree X coordinate
12967  * @ty: return location for tree Y coordinate
12968  *
12969  * Converts bin_window coordinates to coordinates for the
12970  * tree (the full scrollable area of the tree).
12971  *
12972  * Deprecated: 2.12: Due to historial reasons the name of this function is
12973  * incorrect.  For converting coordinates relative to the widget to
12974  * bin_window coordinates, please see
12975  * gtk_tree_view_convert_widget_to_bin_window_coords().
12976  *
12977  **/
12978 void
12979 gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
12980                                       gint         wx,
12981                                       gint         wy,
12982                                       gint        *tx,
12983                                       gint        *ty)
12984 {
12985   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
12986
12987   if (tx)
12988     *tx = wx + tree_view->priv->hadjustment->value;
12989   if (ty)
12990     *ty = wy + tree_view->priv->dy;
12991 }
12992
12993 /**
12994  * gtk_tree_view_tree_to_widget_coords:
12995  * @tree_view: a #GtkTreeView
12996  * @tx: tree X coordinate
12997  * @ty: tree Y coordinate
12998  * @wx: return location for X coordinate relative to bin_window
12999  * @wy: return location for Y coordinate relative to bin_window
13000  *
13001  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13002  * to bin_window coordinates.
13003  *
13004  * Deprecated: 2.12: Due to historial reasons the name of this function is
13005  * incorrect.  For converting bin_window coordinates to coordinates relative
13006  * to bin_window, please see
13007  * gtk_tree_view_convert_bin_window_to_widget_coords().
13008  *
13009  **/
13010 void
13011 gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
13012                                      gint         tx,
13013                                      gint         ty,
13014                                      gint        *wx,
13015                                      gint        *wy)
13016 {
13017   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13018
13019   if (wx)
13020     *wx = tx - tree_view->priv->hadjustment->value;
13021   if (wy)
13022     *wy = ty - tree_view->priv->dy;
13023 }
13024
13025
13026 /**
13027  * gtk_tree_view_convert_widget_to_tree_coords:
13028  * @tree_view: a #GtkTreeView
13029  * @wx: X coordinate relative to the widget
13030  * @wy: Y coordinate relative to the widget
13031  * @tx: return location for tree X coordinate
13032  * @ty: return location for tree Y coordinate
13033  *
13034  * Converts widget coordinates to coordinates for the
13035  * tree (the full scrollable area of the tree).
13036  *
13037  * Since: 2.12
13038  **/
13039 void
13040 gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
13041                                              gint         wx,
13042                                              gint         wy,
13043                                              gint        *tx,
13044                                              gint        *ty)
13045 {
13046   gint x, y;
13047
13048   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13049
13050   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
13051                                                      wx, wy,
13052                                                      &x, &y);
13053   gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
13054                                                    x, y,
13055                                                    tx, ty);
13056 }
13057
13058 /**
13059  * gtk_tree_view_convert_tree_to_widget_coords:
13060  * @tree_view: a #GtkTreeView
13061  * @tx: X coordinate relative to the tree
13062  * @ty: Y coordinate relative to the tree
13063  * @wx: return location for widget X coordinate
13064  * @wy: return location for widget Y coordinate
13065  *
13066  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13067  * to widget coordinates.
13068  *
13069  * Since: 2.12
13070  **/
13071 void
13072 gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
13073                                              gint         tx,
13074                                              gint         ty,
13075                                              gint        *wx,
13076                                              gint        *wy)
13077 {
13078   gint x, y;
13079
13080   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13081
13082   gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
13083                                                    tx, ty,
13084                                                    &x, &y);
13085   gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
13086                                                      x, y,
13087                                                      wx, wy);
13088 }
13089
13090 /**
13091  * gtk_tree_view_convert_widget_to_bin_window_coords:
13092  * @tree_view: a #GtkTreeView
13093  * @wx: X coordinate relative to the widget
13094  * @wy: Y coordinate relative to the widget
13095  * @bx: return location for bin_window X coordinate
13096  * @by: return location for bin_window Y coordinate
13097  *
13098  * Converts widget coordinates to coordinates for the bin_window
13099  * (see gtk_tree_view_get_bin_window()).
13100  *
13101  * Since: 2.12
13102  **/
13103 void
13104 gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
13105                                                    gint         wx,
13106                                                    gint         wy,
13107                                                    gint        *bx,
13108                                                    gint        *by)
13109 {
13110   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13111
13112   if (bx)
13113     *bx = wx + tree_view->priv->hadjustment->value;
13114   if (by)
13115     *by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
13116 }
13117
13118 /**
13119  * gtk_tree_view_convert_bin_window_to_widget_coords:
13120  * @tree_view: a #GtkTreeView
13121  * @bx: bin_window X coordinate
13122  * @by: bin_window Y coordinate
13123  * @wx: return location for widget X coordinate
13124  * @wy: return location for widget Y coordinate
13125  *
13126  * Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
13127  * to widget relative coordinates.
13128  *
13129  * Since: 2.12
13130  **/
13131 void
13132 gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
13133                                                    gint         bx,
13134                                                    gint         by,
13135                                                    gint        *wx,
13136                                                    gint        *wy)
13137 {
13138   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13139
13140   if (wx)
13141     *wx = bx - tree_view->priv->hadjustment->value;
13142   if (wy)
13143     *wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
13144 }
13145
13146 /**
13147  * gtk_tree_view_convert_tree_to_bin_window_coords:
13148  * @tree_view: a #GtkTreeView
13149  * @tx: tree X coordinate
13150  * @ty: tree Y coordinate
13151  * @bx: return location for X coordinate relative to bin_window
13152  * @by: return location for Y coordinate relative to bin_window
13153  *
13154  * Converts tree coordinates (coordinates in full scrollable area of the tree)
13155  * to bin_window coordinates.
13156  *
13157  * Since: 2.12
13158  **/
13159 void
13160 gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
13161                                                  gint         tx,
13162                                                  gint         ty,
13163                                                  gint        *bx,
13164                                                  gint        *by)
13165 {
13166   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13167
13168   if (bx)
13169     *bx = tx;
13170   if (by)
13171     *by = ty - tree_view->priv->dy;
13172 }
13173
13174 /**
13175  * gtk_tree_view_convert_bin_window_to_tree_coords:
13176  * @tree_view: a #GtkTreeView
13177  * @bx: X coordinate relative to bin_window
13178  * @by: Y coordinate relative to bin_window
13179  * @tx: return location for tree X coordinate
13180  * @ty: return location for tree Y coordinate
13181  *
13182  * Converts bin_window coordinates to coordinates for the
13183  * tree (the full scrollable area of the tree).
13184  *
13185  * Since: 2.12
13186  **/
13187 void
13188 gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
13189                                                  gint         bx,
13190                                                  gint         by,
13191                                                  gint        *tx,
13192                                                  gint        *ty)
13193 {
13194   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13195
13196   if (tx)
13197     *tx = bx;
13198   if (ty)
13199     *ty = by + tree_view->priv->dy;
13200 }
13201
13202
13203
13204 /**
13205  * gtk_tree_view_get_visible_range:
13206  * @tree_view: A #GtkTreeView
13207  * @start_path: Return location for start of region, or %NULL.
13208  * @end_path: Return location for end of region, or %NULL.
13209  *
13210  * Sets @start_path and @end_path to be the first and last visible path.
13211  * Note that there may be invisible paths in between.
13212  *
13213  * The paths should be freed with gtk_tree_path_free() after use.
13214  *
13215  * Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
13216  *
13217  * Since: 2.8
13218  **/
13219 gboolean
13220 gtk_tree_view_get_visible_range (GtkTreeView  *tree_view,
13221                                  GtkTreePath **start_path,
13222                                  GtkTreePath **end_path)
13223 {
13224   GtkRBTree *tree;
13225   GtkRBNode *node;
13226   gboolean retval;
13227
13228   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13229
13230   if (!tree_view->priv->tree)
13231     return FALSE;
13232
13233   retval = TRUE;
13234
13235   if (start_path)
13236     {
13237       _gtk_rbtree_find_offset (tree_view->priv->tree,
13238                                TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
13239                                &tree, &node);
13240       if (node)
13241         *start_path = _gtk_tree_view_find_path (tree_view, tree, node);
13242       else
13243         retval = FALSE;
13244     }
13245
13246   if (end_path)
13247     {
13248       gint y;
13249
13250       if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
13251         y = tree_view->priv->height - 1;
13252       else
13253         y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
13254
13255       _gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
13256       if (node)
13257         *end_path = _gtk_tree_view_find_path (tree_view, tree, node);
13258       else
13259         retval = FALSE;
13260     }
13261
13262   return retval;
13263 }
13264
13265 static void
13266 unset_reorderable (GtkTreeView *tree_view)
13267 {
13268   if (tree_view->priv->reorderable)
13269     {
13270       tree_view->priv->reorderable = FALSE;
13271       g_object_notify (G_OBJECT (tree_view), "reorderable");
13272     }
13273 }
13274
13275 /**
13276  * gtk_tree_view_enable_model_drag_source:
13277  * @tree_view: a #GtkTreeView
13278  * @start_button_mask: Mask of allowed buttons to start drag
13279  * @targets: the table of targets that the drag will support
13280  * @n_targets: the number of items in @targets
13281  * @actions: the bitmask of possible actions for a drag from this
13282  *    widget
13283  *
13284  * Turns @tree_view into a drag source for automatic DND. Calling this
13285  * method sets #GtkTreeView:reorderable to %FALSE.
13286  **/
13287 void
13288 gtk_tree_view_enable_model_drag_source (GtkTreeView              *tree_view,
13289                                         GdkModifierType           start_button_mask,
13290                                         const GtkTargetEntry     *targets,
13291                                         gint                      n_targets,
13292                                         GdkDragAction             actions)
13293 {
13294   TreeViewDragInfo *di;
13295
13296   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13297
13298   gtk_drag_source_set (GTK_WIDGET (tree_view),
13299                        0,
13300                        targets,
13301                        n_targets,
13302                        actions);
13303
13304   di = ensure_info (tree_view);
13305
13306   di->start_button_mask = start_button_mask;
13307   di->source_actions = actions;
13308   di->source_set = TRUE;
13309
13310   unset_reorderable (tree_view);
13311 }
13312
13313 /**
13314  * gtk_tree_view_enable_model_drag_dest:
13315  * @tree_view: a #GtkTreeView
13316  * @targets: the table of targets that the drag will support
13317  * @n_targets: the number of items in @targets
13318  * @actions: the bitmask of possible actions for a drag from this
13319  *    widget
13320  *
13321  * Turns @tree_view into a drop destination for automatic DND. Calling
13322  * this method sets #GtkTreeView:reorderable to %FALSE.
13323  **/
13324 void
13325 gtk_tree_view_enable_model_drag_dest (GtkTreeView              *tree_view,
13326                                       const GtkTargetEntry     *targets,
13327                                       gint                      n_targets,
13328                                       GdkDragAction             actions)
13329 {
13330   TreeViewDragInfo *di;
13331
13332   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13333
13334   gtk_drag_dest_set (GTK_WIDGET (tree_view),
13335                      0,
13336                      targets,
13337                      n_targets,
13338                      actions);
13339
13340   di = ensure_info (tree_view);
13341   di->dest_set = TRUE;
13342
13343   unset_reorderable (tree_view);
13344 }
13345
13346 /**
13347  * gtk_tree_view_unset_rows_drag_source:
13348  * @tree_view: a #GtkTreeView
13349  *
13350  * Undoes the effect of
13351  * gtk_tree_view_enable_model_drag_source(). Calling this method sets
13352  * #GtkTreeView:reorderable to %FALSE.
13353  **/
13354 void
13355 gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
13356 {
13357   TreeViewDragInfo *di;
13358
13359   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13360
13361   di = get_info (tree_view);
13362
13363   if (di)
13364     {
13365       if (di->source_set)
13366         {
13367           gtk_drag_source_unset (GTK_WIDGET (tree_view));
13368           di->source_set = FALSE;
13369         }
13370
13371       if (!di->dest_set && !di->source_set)
13372         remove_info (tree_view);
13373     }
13374
13375   unset_reorderable (tree_view);
13376 }
13377
13378 /**
13379  * gtk_tree_view_unset_rows_drag_dest:
13380  * @tree_view: a #GtkTreeView
13381  *
13382  * Undoes the effect of
13383  * gtk_tree_view_enable_model_drag_dest(). Calling this method sets
13384  * #GtkTreeView:reorderable to %FALSE.
13385  **/
13386 void
13387 gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
13388 {
13389   TreeViewDragInfo *di;
13390
13391   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13392
13393   di = get_info (tree_view);
13394
13395   if (di)
13396     {
13397       if (di->dest_set)
13398         {
13399           gtk_drag_dest_unset (GTK_WIDGET (tree_view));
13400           di->dest_set = FALSE;
13401         }
13402
13403       if (!di->dest_set && !di->source_set)
13404         remove_info (tree_view);
13405     }
13406
13407   unset_reorderable (tree_view);
13408 }
13409
13410 /**
13411  * gtk_tree_view_set_drag_dest_row:
13412  * @tree_view: a #GtkTreeView
13413  * @path: The path of the row to highlight, or %NULL.
13414  * @pos: Specifies whether to drop before, after or into the row
13415  *
13416  * Sets the row that is highlighted for feedback.
13417  **/
13418 void
13419 gtk_tree_view_set_drag_dest_row (GtkTreeView            *tree_view,
13420                                  GtkTreePath            *path,
13421                                  GtkTreeViewDropPosition pos)
13422 {
13423   GtkTreePath *current_dest;
13424
13425   /* Note; this function is exported to allow a custom DND
13426    * implementation, so it can't touch TreeViewDragInfo
13427    */
13428
13429   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13430
13431   current_dest = NULL;
13432
13433   if (tree_view->priv->drag_dest_row)
13434     {
13435       current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13436       gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
13437     }
13438
13439   /* special case a drop on an empty model */
13440   tree_view->priv->empty_view_drop = 0;
13441
13442   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
13443       && gtk_tree_path_get_depth (path) == 1
13444       && gtk_tree_path_get_indices (path)[0] == 0)
13445     {
13446       gint n_children;
13447
13448       n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
13449                                                    NULL);
13450
13451       if (!n_children)
13452         tree_view->priv->empty_view_drop = 1;
13453     }
13454
13455   tree_view->priv->drag_dest_pos = pos;
13456
13457   if (path)
13458     {
13459       tree_view->priv->drag_dest_row =
13460         gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
13461       gtk_tree_view_queue_draw_path (tree_view, path, NULL);
13462     }
13463   else
13464     tree_view->priv->drag_dest_row = NULL;
13465
13466   if (current_dest)
13467     {
13468       GtkRBTree *tree, *new_tree;
13469       GtkRBNode *node, *new_node;
13470
13471       _gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
13472       _gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
13473
13474       if (tree && node)
13475         {
13476           _gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
13477           if (new_tree && new_node)
13478             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13479
13480           _gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
13481           if (new_tree && new_node)
13482             _gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
13483         }
13484       gtk_tree_path_free (current_dest);
13485     }
13486 }
13487
13488 /**
13489  * gtk_tree_view_get_drag_dest_row:
13490  * @tree_view: a #GtkTreeView
13491  * @path: Return location for the path of the highlighted row, or %NULL.
13492  * @pos: Return location for the drop position, or %NULL
13493  *
13494  * Gets information about the row that is highlighted for feedback.
13495  **/
13496 void
13497 gtk_tree_view_get_drag_dest_row (GtkTreeView              *tree_view,
13498                                  GtkTreePath             **path,
13499                                  GtkTreeViewDropPosition  *pos)
13500 {
13501   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13502
13503   if (path)
13504     {
13505       if (tree_view->priv->drag_dest_row)
13506         *path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
13507       else
13508         {
13509           if (tree_view->priv->empty_view_drop)
13510             *path = gtk_tree_path_new_from_indices (0, -1);
13511           else
13512             *path = NULL;
13513         }
13514     }
13515
13516   if (pos)
13517     *pos = tree_view->priv->drag_dest_pos;
13518 }
13519
13520 /**
13521  * gtk_tree_view_get_dest_row_at_pos:
13522  * @tree_view: a #GtkTreeView
13523  * @drag_x: the position to determine the destination row for
13524  * @drag_y: the position to determine the destination row for
13525  * @path: Return location for the path of the highlighted row, or %NULL.
13526  * @pos: Return location for the drop position, or %NULL
13527  *
13528  * Determines the destination row for a given position.  @drag_x and
13529  * @drag_y are expected to be in widget coordinates.  This function is only
13530  * meaningful if @tree_view is realized.  Therefore this function will always
13531  * return %FALSE if @tree_view is not realized or does not have a model.
13532  *
13533  * Return value: whether there is a row at the given position, %TRUE if this
13534  * is indeed the case.
13535  **/
13536 gboolean
13537 gtk_tree_view_get_dest_row_at_pos (GtkTreeView             *tree_view,
13538                                    gint                     drag_x,
13539                                    gint                     drag_y,
13540                                    GtkTreePath            **path,
13541                                    GtkTreeViewDropPosition *pos)
13542 {
13543   gint cell_y;
13544   gint bin_x, bin_y;
13545   gdouble offset_into_row;
13546   gdouble third;
13547   GdkRectangle cell;
13548   GtkTreeViewColumn *column = NULL;
13549   GtkTreePath *tmp_path = NULL;
13550
13551   /* Note; this function is exported to allow a custom DND
13552    * implementation, so it can't touch TreeViewDragInfo
13553    */
13554
13555   g_return_val_if_fail (tree_view != NULL, FALSE);
13556   g_return_val_if_fail (drag_x >= 0, FALSE);
13557   g_return_val_if_fail (drag_y >= 0, FALSE);
13558
13559   if (path)
13560     *path = NULL;
13561
13562   if (tree_view->priv->bin_window == NULL)
13563     return FALSE;
13564
13565   if (tree_view->priv->tree == NULL)
13566     return FALSE;
13567
13568   /* If in the top third of a row, we drop before that row; if
13569    * in the bottom third, drop after that row; if in the middle,
13570    * and the row has children, drop into the row.
13571    */
13572   gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
13573                                                      &bin_x, &bin_y);
13574
13575   if (!gtk_tree_view_get_path_at_pos (tree_view,
13576                                       bin_x,
13577                                       bin_y,
13578                                       &tmp_path,
13579                                       &column,
13580                                       NULL,
13581                                       &cell_y))
13582     return FALSE;
13583
13584   gtk_tree_view_get_background_area (tree_view, tmp_path, column,
13585                                      &cell);
13586
13587   offset_into_row = cell_y;
13588
13589   if (path)
13590     *path = tmp_path;
13591   else
13592     gtk_tree_path_free (tmp_path);
13593
13594   tmp_path = NULL;
13595
13596   third = cell.height / 3.0;
13597
13598   if (pos)
13599     {
13600       if (offset_into_row < third)
13601         {
13602           *pos = GTK_TREE_VIEW_DROP_BEFORE;
13603         }
13604       else if (offset_into_row < (cell.height / 2.0))
13605         {
13606           *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
13607         }
13608       else if (offset_into_row < third * 2.0)
13609         {
13610           *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
13611         }
13612       else
13613         {
13614           *pos = GTK_TREE_VIEW_DROP_AFTER;
13615         }
13616     }
13617
13618   return TRUE;
13619 }
13620
13621
13622
13623 /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
13624 /**
13625  * gtk_tree_view_create_row_drag_icon:
13626  * @tree_view: a #GtkTreeView
13627  * @path: a #GtkTreePath in @tree_view
13628  *
13629  * Creates a #GdkPixmap representation of the row at @path.
13630  * This image is used for a drag icon.
13631  *
13632  * Return value: a newly-allocated pixmap of the drag icon.
13633  **/
13634 GdkPixmap *
13635 gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
13636                                     GtkTreePath  *path)
13637 {
13638   GtkTreeIter   iter;
13639   GtkRBTree    *tree;
13640   GtkRBNode    *node;
13641   gint cell_offset;
13642   GList *list;
13643   GdkRectangle background_area;
13644   GdkRectangle expose_area;
13645   GtkWidget *widget;
13646   gint depth;
13647   /* start drawing inside the black outline */
13648   gint x = 1, y = 1;
13649   GdkDrawable *drawable;
13650   gint bin_window_width;
13651   gboolean is_separator = FALSE;
13652   gboolean rtl;
13653
13654   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13655   g_return_val_if_fail (path != NULL, NULL);
13656
13657   widget = GTK_WIDGET (tree_view);
13658
13659   if (!GTK_WIDGET_REALIZED (tree_view))
13660     return NULL;
13661
13662   depth = gtk_tree_path_get_depth (path);
13663
13664   _gtk_tree_view_find_node (tree_view,
13665                             path,
13666                             &tree,
13667                             &node);
13668
13669   if (tree == NULL)
13670     return NULL;
13671
13672   if (!gtk_tree_model_get_iter (tree_view->priv->model,
13673                                 &iter,
13674                                 path))
13675     return NULL;
13676
13677   is_separator = row_is_separator (tree_view, &iter, NULL);
13678
13679   cell_offset = x;
13680
13681   background_area.y = y;
13682   background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
13683
13684   gdk_drawable_get_size (tree_view->priv->bin_window,
13685                          &bin_window_width, NULL);
13686
13687   drawable = gdk_pixmap_new (tree_view->priv->bin_window,
13688                              bin_window_width + 2,
13689                              background_area.height + 2,
13690                              -1);
13691
13692   expose_area.x = 0;
13693   expose_area.y = 0;
13694   expose_area.width = bin_window_width + 2;
13695   expose_area.height = background_area.height + 2;
13696
13697   gdk_draw_rectangle (drawable,
13698                       widget->style->base_gc [GTK_WIDGET_STATE (widget)],
13699                       TRUE,
13700                       0, 0,
13701                       bin_window_width + 2,
13702                       background_area.height + 2);
13703
13704   rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
13705
13706   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
13707       list;
13708       list = (rtl ? list->prev : list->next))
13709     {
13710       GtkTreeViewColumn *column = list->data;
13711       GdkRectangle cell_area;
13712       gint vertical_separator;
13713
13714       if (!column->visible)
13715         continue;
13716
13717       gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
13718                                                GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
13719                                                node->children?TRUE:FALSE);
13720
13721       background_area.x = cell_offset;
13722       background_area.width = column->width;
13723
13724       gtk_widget_style_get (widget,
13725                             "vertical-separator", &vertical_separator,
13726                             NULL);
13727
13728       cell_area = background_area;
13729
13730       cell_area.y += vertical_separator / 2;
13731       cell_area.height -= vertical_separator;
13732
13733       if (gtk_tree_view_is_expander_column (tree_view, column))
13734         {
13735           if (!rtl)
13736             cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
13737           cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
13738
13739           if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
13740             {
13741               if (!rtl)
13742                 cell_area.x += depth * tree_view->priv->expander_size;
13743               cell_area.width -= depth * tree_view->priv->expander_size;
13744             }
13745         }
13746
13747       if (gtk_tree_view_column_cell_is_visible (column))
13748         {
13749           if (is_separator)
13750             gtk_paint_hline (widget->style,
13751                              drawable,
13752                              GTK_STATE_NORMAL,
13753                              &cell_area,
13754                              widget,
13755                              NULL,
13756                              cell_area.x,
13757                              cell_area.x + cell_area.width,
13758                              cell_area.y + cell_area.height / 2);
13759           else
13760             _gtk_tree_view_column_cell_render (column,
13761                                                drawable,
13762                                                &background_area,
13763                                                &cell_area,
13764                                                &expose_area,
13765                                                0);
13766         }
13767       cell_offset += column->width;
13768     }
13769
13770   gdk_draw_rectangle (drawable,
13771                       widget->style->black_gc,
13772                       FALSE,
13773                       0, 0,
13774                       bin_window_width + 1,
13775                       background_area.height + 1);
13776
13777   return drawable;
13778 }
13779
13780
13781 /**
13782  * gtk_tree_view_set_destroy_count_func:
13783  * @tree_view: A #GtkTreeView
13784  * @func: Function to be called when a view row is destroyed, or %NULL
13785  * @data: User data to be passed to @func, or %NULL
13786  * @destroy: Destroy notifier for @data, or %NULL
13787  *
13788  * This function should almost never be used.  It is meant for private use by
13789  * ATK for determining the number of visible children that are removed when the
13790  * user collapses a row, or a row is deleted.
13791  **/
13792 void
13793 gtk_tree_view_set_destroy_count_func (GtkTreeView             *tree_view,
13794                                       GtkTreeDestroyCountFunc  func,
13795                                       gpointer                 data,
13796                                       GDestroyNotify           destroy)
13797 {
13798   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13799
13800   if (tree_view->priv->destroy_count_destroy)
13801     tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
13802
13803   tree_view->priv->destroy_count_func = func;
13804   tree_view->priv->destroy_count_data = data;
13805   tree_view->priv->destroy_count_destroy = destroy;
13806 }
13807
13808
13809 /*
13810  * Interactive search
13811  */
13812
13813 /**
13814  * gtk_tree_view_set_enable_search:
13815  * @tree_view: A #GtkTreeView
13816  * @enable_search: %TRUE, if the user can search interactively
13817  *
13818  * If @enable_search is set, then the user can type in text to search through
13819  * the tree interactively (this is sometimes called "typeahead find").
13820  *
13821  * Note that even if this is %FALSE, the user can still initiate a search
13822  * using the "start-interactive-search" key binding.
13823  */
13824 void
13825 gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
13826                                  gboolean     enable_search)
13827 {
13828   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13829
13830   enable_search = !!enable_search;
13831
13832   if (tree_view->priv->enable_search != enable_search)
13833     {
13834        tree_view->priv->enable_search = enable_search;
13835        g_object_notify (G_OBJECT (tree_view), "enable-search");
13836     }
13837 }
13838
13839 /**
13840  * gtk_tree_view_get_enable_search:
13841  * @tree_view: A #GtkTreeView
13842  *
13843  * Returns whether or not the tree allows to start interactive searching
13844  * by typing in text.
13845  *
13846  * Return value: whether or not to let the user search interactively
13847  */
13848 gboolean
13849 gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
13850 {
13851   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
13852
13853   return tree_view->priv->enable_search;
13854 }
13855
13856
13857 /**
13858  * gtk_tree_view_get_search_column:
13859  * @tree_view: A #GtkTreeView
13860  *
13861  * Gets the column searched on by the interactive search code.
13862  *
13863  * Return value: the column the interactive search code searches in.
13864  */
13865 gint
13866 gtk_tree_view_get_search_column (GtkTreeView *tree_view)
13867 {
13868   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
13869
13870   return (tree_view->priv->search_column);
13871 }
13872
13873 /**
13874  * gtk_tree_view_set_search_column:
13875  * @tree_view: A #GtkTreeView
13876  * @column: the column of the model to search in, or -1 to disable searching
13877  *
13878  * Sets @column as the column where the interactive search code should
13879  * search in for the current model.
13880  *
13881  * If the search column is set, users can use the "start-interactive-search"
13882  * key binding to bring up search popup. The enable-search property controls
13883  * whether simply typing text will also start an interactive search.
13884  *
13885  * Note that @column refers to a column of the current model. The search
13886  * column is reset to -1 when the model is changed.
13887  */
13888 void
13889 gtk_tree_view_set_search_column (GtkTreeView *tree_view,
13890                                  gint         column)
13891 {
13892   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13893   g_return_if_fail (column >= -1);
13894
13895   if (tree_view->priv->search_column == column)
13896     return;
13897
13898   tree_view->priv->search_column = column;
13899   g_object_notify (G_OBJECT (tree_view), "search-column");
13900 }
13901
13902 /**
13903  * gtk_tree_view_get_search_equal_func:
13904  * @tree_view: A #GtkTreeView
13905  *
13906  * Returns the compare function currently in use.
13907  *
13908  * Return value: the currently used compare function for the search code.
13909  */
13910
13911 GtkTreeViewSearchEqualFunc
13912 gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
13913 {
13914   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13915
13916   return tree_view->priv->search_equal_func;
13917 }
13918
13919 /**
13920  * gtk_tree_view_set_search_equal_func:
13921  * @tree_view: A #GtkTreeView
13922  * @search_equal_func: the compare function to use during the search
13923  * @search_user_data: user data to pass to @search_equal_func, or %NULL
13924  * @search_destroy: Destroy notifier for @search_user_data, or %NULL
13925  *
13926  * Sets the compare function for the interactive search capabilities; note
13927  * that somewhat like strcmp() returning 0 for equality
13928  * #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
13929  **/
13930 void
13931 gtk_tree_view_set_search_equal_func (GtkTreeView                *tree_view,
13932                                      GtkTreeViewSearchEqualFunc  search_equal_func,
13933                                      gpointer                    search_user_data,
13934                                      GDestroyNotify              search_destroy)
13935 {
13936   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13937   g_return_if_fail (search_equal_func != NULL);
13938
13939   if (tree_view->priv->search_destroy)
13940     tree_view->priv->search_destroy (tree_view->priv->search_user_data);
13941
13942   tree_view->priv->search_equal_func = search_equal_func;
13943   tree_view->priv->search_user_data = search_user_data;
13944   tree_view->priv->search_destroy = search_destroy;
13945   if (tree_view->priv->search_equal_func == NULL)
13946     tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
13947 }
13948
13949 /**
13950  * gtk_tree_view_get_search_entry:
13951  * @tree_view: A #GtkTreeView
13952  *
13953  * Returns the #GtkEntry which is currently in use as interactive search
13954  * entry for @tree_view.  In case the built-in entry is being used, %NULL
13955  * will be returned.
13956  *
13957  * Return value: the entry currently in use as search entry.
13958  *
13959  * Since: 2.10
13960  */
13961 GtkEntry *
13962 gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
13963 {
13964   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
13965
13966   if (tree_view->priv->search_custom_entry_set)
13967     return GTK_ENTRY (tree_view->priv->search_entry);
13968
13969   return NULL;
13970 }
13971
13972 /**
13973  * gtk_tree_view_set_search_entry:
13974  * @tree_view: A #GtkTreeView
13975  * @entry: the entry the interactive search code of @tree_view should use or %NULL
13976  *
13977  * Sets the entry which the interactive search code will use for this
13978  * @tree_view.  This is useful when you want to provide a search entry
13979  * in our interface at all time at a fixed position.  Passing %NULL for
13980  * @entry will make the interactive search code use the built-in popup
13981  * entry again.
13982  *
13983  * Since: 2.10
13984  */
13985 void
13986 gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
13987                                 GtkEntry    *entry)
13988 {
13989   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
13990   g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
13991
13992   if (tree_view->priv->search_custom_entry_set)
13993     {
13994       if (tree_view->priv->search_entry_changed_id)
13995         {
13996           g_signal_handler_disconnect (tree_view->priv->search_entry,
13997                                        tree_view->priv->search_entry_changed_id);
13998           tree_view->priv->search_entry_changed_id = 0;
13999         }
14000       g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
14001                                             G_CALLBACK (gtk_tree_view_search_key_press_event),
14002                                             tree_view);
14003
14004       g_object_unref (tree_view->priv->search_entry);
14005     }
14006   else if (tree_view->priv->search_window)
14007     {
14008       gtk_widget_destroy (tree_view->priv->search_window);
14009
14010       tree_view->priv->search_window = NULL;
14011     }
14012
14013   if (entry)
14014     {
14015       tree_view->priv->search_entry = g_object_ref (entry);
14016       tree_view->priv->search_custom_entry_set = TRUE;
14017
14018       if (tree_view->priv->search_entry_changed_id == 0)
14019         {
14020           tree_view->priv->search_entry_changed_id =
14021             g_signal_connect (tree_view->priv->search_entry, "changed",
14022                               G_CALLBACK (gtk_tree_view_search_init),
14023                               tree_view);
14024         }
14025
14026         g_signal_connect (tree_view->priv->search_entry, "key-press-event",
14027                           G_CALLBACK (gtk_tree_view_search_key_press_event),
14028                           tree_view);
14029
14030         gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
14031     }
14032   else
14033     {
14034       tree_view->priv->search_entry = NULL;
14035       tree_view->priv->search_custom_entry_set = FALSE;
14036     }
14037 }
14038
14039 /**
14040  * gtk_tree_view_set_search_position_func:
14041  * @tree_view: A #GtkTreeView
14042  * @func: the function to use to position the search dialog, or %NULL
14043  *    to use the default search position function
14044  * @data: user data to pass to @func, or %NULL
14045  * @destroy: Destroy notifier for @data, or %NULL
14046  *
14047  * Sets the function to use when positioning the search dialog.
14048  *
14049  * Since: 2.10
14050  **/
14051 void
14052 gtk_tree_view_set_search_position_func (GtkTreeView                   *tree_view,
14053                                         GtkTreeViewSearchPositionFunc  func,
14054                                         gpointer                       user_data,
14055                                         GDestroyNotify                 destroy)
14056 {
14057   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14058
14059   if (tree_view->priv->search_position_destroy)
14060     tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
14061
14062   tree_view->priv->search_position_func = func;
14063   tree_view->priv->search_position_user_data = user_data;
14064   tree_view->priv->search_position_destroy = destroy;
14065   if (tree_view->priv->search_position_func == NULL)
14066     tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
14067 }
14068
14069 /**
14070  * gtk_tree_view_get_search_position_func:
14071  * @tree_view: A #GtkTreeView
14072  *
14073  * Returns the positioning function currently in use.
14074  *
14075  * Return value: the currently used function for positioning the search dialog.
14076  *
14077  * Since: 2.10
14078  */
14079 GtkTreeViewSearchPositionFunc
14080 gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
14081 {
14082   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14083
14084   return tree_view->priv->search_position_func;
14085 }
14086
14087
14088 static void
14089 gtk_tree_view_search_dialog_hide (GtkWidget   *search_dialog,
14090                                   GtkTreeView *tree_view)
14091 {
14092   if (tree_view->priv->disable_popdown)
14093     return;
14094
14095   if (tree_view->priv->search_entry_changed_id)
14096     {
14097       g_signal_handler_disconnect (tree_view->priv->search_entry,
14098                                    tree_view->priv->search_entry_changed_id);
14099       tree_view->priv->search_entry_changed_id = 0;
14100     }
14101   if (tree_view->priv->typeselect_flush_timeout)
14102     {
14103       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14104       tree_view->priv->typeselect_flush_timeout = 0;
14105     }
14106
14107   if (GTK_WIDGET_VISIBLE (search_dialog))
14108     {
14109       /* send focus-in event */
14110       send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), FALSE);
14111       gtk_widget_hide (search_dialog);
14112       gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
14113       send_focus_change (GTK_WIDGET (tree_view), TRUE);
14114     }
14115 }
14116
14117 static void
14118 gtk_tree_view_search_position_func (GtkTreeView *tree_view,
14119                                     GtkWidget   *search_dialog,
14120                                     gpointer     user_data)
14121 {
14122   gint x, y;
14123   gint tree_x, tree_y;
14124   gint tree_width, tree_height;
14125   GdkWindow *tree_window = GTK_WIDGET (tree_view)->window;
14126   GdkScreen *screen = gdk_drawable_get_screen (tree_window);
14127   GtkRequisition requisition;
14128   gint monitor_num;
14129   GdkRectangle monitor;
14130
14131   monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
14132   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
14133
14134   gtk_widget_realize (search_dialog);
14135
14136   gdk_window_get_origin (tree_window, &tree_x, &tree_y);
14137   gdk_drawable_get_size (tree_window,
14138                          &tree_width,
14139                          &tree_height);
14140   gtk_widget_size_request (search_dialog, &requisition);
14141
14142   if (tree_x + tree_width > gdk_screen_get_width (screen))
14143     x = gdk_screen_get_width (screen) - requisition.width;
14144   else if (tree_x + tree_width - requisition.width < 0)
14145     x = 0;
14146   else
14147     x = tree_x + tree_width - requisition.width;
14148
14149   if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
14150     y = gdk_screen_get_height (screen) - requisition.height;
14151   else if (tree_y + tree_height < 0) /* isn't really possible ... */
14152     y = 0;
14153   else
14154     y = tree_y + tree_height;
14155
14156   gtk_window_move (GTK_WINDOW (search_dialog), x, y);
14157 }
14158
14159 static void
14160 gtk_tree_view_search_disable_popdown (GtkEntry *entry,
14161                                       GtkMenu  *menu,
14162                                       gpointer  data)
14163 {
14164   GtkTreeView *tree_view = (GtkTreeView *)data;
14165
14166   tree_view->priv->disable_popdown = 1;
14167   g_signal_connect (menu, "hide",
14168                     G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
14169 }
14170
14171 /* Because we're visible but offscreen, we just set a flag in the preedit
14172  * callback.
14173  */
14174 static void
14175 gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
14176                                       GtkTreeView  *tree_view)
14177 {
14178   tree_view->priv->imcontext_changed = 1;
14179   if (tree_view->priv->typeselect_flush_timeout)
14180     {
14181       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14182       tree_view->priv->typeselect_flush_timeout =
14183         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14184                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14185                        tree_view);
14186     }
14187
14188 }
14189
14190 static void
14191 gtk_tree_view_search_activate (GtkEntry    *entry,
14192                                GtkTreeView *tree_view)
14193 {
14194   GtkTreePath *path;
14195   GtkRBNode *node;
14196   GtkRBTree *tree;
14197
14198   gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
14199                                     tree_view);
14200
14201   /* If we have a row selected and it's the cursor row, we activate
14202    * the row XXX */
14203   if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
14204     {
14205       path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
14206
14207       _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14208
14209       if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
14210         gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
14211
14212       gtk_tree_path_free (path);
14213     }
14214 }
14215
14216 static gboolean
14217 gtk_tree_view_real_search_enable_popdown (gpointer data)
14218 {
14219   GtkTreeView *tree_view = (GtkTreeView *)data;
14220
14221   tree_view->priv->disable_popdown = 0;
14222
14223   return FALSE;
14224 }
14225
14226 static void
14227 gtk_tree_view_search_enable_popdown (GtkWidget *widget,
14228                                      gpointer   data)
14229 {
14230   gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
14231 }
14232
14233 static gboolean
14234 gtk_tree_view_search_delete_event (GtkWidget *widget,
14235                                    GdkEventAny *event,
14236                                    GtkTreeView *tree_view)
14237 {
14238   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14239
14240   gtk_tree_view_search_dialog_hide (widget, tree_view);
14241
14242   return TRUE;
14243 }
14244
14245 static gboolean
14246 gtk_tree_view_search_button_press_event (GtkWidget *widget,
14247                                          GdkEventButton *event,
14248                                          GtkTreeView *tree_view)
14249 {
14250   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14251
14252   gtk_tree_view_search_dialog_hide (widget, tree_view);
14253
14254   if (event->window == tree_view->priv->bin_window)
14255     gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
14256
14257   return TRUE;
14258 }
14259
14260 static gboolean
14261 gtk_tree_view_search_scroll_event (GtkWidget *widget,
14262                                    GdkEventScroll *event,
14263                                    GtkTreeView *tree_view)
14264 {
14265   gboolean retval = FALSE;
14266
14267   if (event->direction == GDK_SCROLL_UP)
14268     {
14269       gtk_tree_view_search_move (widget, tree_view, TRUE);
14270       retval = TRUE;
14271     }
14272   else if (event->direction == GDK_SCROLL_DOWN)
14273     {
14274       gtk_tree_view_search_move (widget, tree_view, FALSE);
14275       retval = TRUE;
14276     }
14277
14278   /* renew the flush timeout */
14279   if (retval && tree_view->priv->typeselect_flush_timeout
14280       && !tree_view->priv->search_custom_entry_set)
14281     {
14282       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14283       tree_view->priv->typeselect_flush_timeout =
14284         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14285                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14286                        tree_view);
14287     }
14288
14289   return retval;
14290 }
14291
14292 static gboolean
14293 gtk_tree_view_search_key_press_event (GtkWidget *widget,
14294                                       GdkEventKey *event,
14295                                       GtkTreeView *tree_view)
14296 {
14297   gboolean retval = FALSE;
14298
14299   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
14300   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14301
14302   /* close window and cancel the search */
14303   if (!tree_view->priv->search_custom_entry_set
14304       && (event->keyval == GDK_Escape ||
14305           event->keyval == GDK_Tab ||
14306             event->keyval == GDK_KP_Tab ||
14307             event->keyval == GDK_ISO_Left_Tab))
14308     {
14309       gtk_tree_view_search_dialog_hide (widget, tree_view);
14310       return TRUE;
14311     }
14312
14313   /* select previous matching iter */
14314   if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
14315     {
14316       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14317         gtk_widget_error_bell (widget);
14318
14319       retval = TRUE;
14320     }
14321
14322   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
14323       && (event->keyval == GDK_g || event->keyval == GDK_G))
14324     {
14325       if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
14326         gtk_widget_error_bell (widget);
14327
14328       retval = TRUE;
14329     }
14330
14331   /* select next matching iter */
14332   if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
14333     {
14334       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14335         gtk_widget_error_bell (widget);
14336
14337       retval = TRUE;
14338     }
14339
14340   if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
14341       && (event->keyval == GDK_g || event->keyval == GDK_G))
14342     {
14343       if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
14344         gtk_widget_error_bell (widget);
14345
14346       retval = TRUE;
14347     }
14348
14349   /* renew the flush timeout */
14350   if (retval && tree_view->priv->typeselect_flush_timeout
14351       && !tree_view->priv->search_custom_entry_set)
14352     {
14353       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14354       tree_view->priv->typeselect_flush_timeout =
14355         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14356                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14357                        tree_view);
14358     }
14359
14360   return retval;
14361 }
14362
14363 /*  this function returns FALSE if there is a search string but
14364  *  nothing was found, and TRUE otherwise.
14365  */
14366 static gboolean
14367 gtk_tree_view_search_move (GtkWidget   *window,
14368                            GtkTreeView *tree_view,
14369                            gboolean     up)
14370 {
14371   gboolean ret;
14372   gint len;
14373   gint count = 0;
14374   const gchar *text;
14375   GtkTreeIter iter;
14376   GtkTreeModel *model;
14377   GtkTreeSelection *selection;
14378
14379   text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
14380
14381   g_return_val_if_fail (text != NULL, FALSE);
14382
14383   len = strlen (text);
14384
14385   if (up && tree_view->priv->selected_iter == 1)
14386     return strlen (text) < 1;
14387
14388   len = strlen (text);
14389
14390   if (len < 1)
14391     return TRUE;
14392
14393   model = gtk_tree_view_get_model (tree_view);
14394   selection = gtk_tree_view_get_selection (tree_view);
14395
14396   /* search */
14397   gtk_tree_selection_unselect_all (selection);
14398   if (!gtk_tree_model_get_iter_first (model, &iter))
14399     return TRUE;
14400
14401   ret = gtk_tree_view_search_iter (model, selection, &iter, text,
14402                                    &count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
14403
14404   if (ret)
14405     {
14406       /* found */
14407       tree_view->priv->selected_iter += up?(-1):(1);
14408       return TRUE;
14409     }
14410   else
14411     {
14412       /* return to old iter */
14413       count = 0;
14414       gtk_tree_model_get_iter_first (model, &iter);
14415       gtk_tree_view_search_iter (model, selection,
14416                                  &iter, text,
14417                                  &count, tree_view->priv->selected_iter);
14418       return FALSE;
14419     }
14420 }
14421
14422 static gboolean
14423 gtk_tree_view_search_equal_func (GtkTreeModel *model,
14424                                  gint          column,
14425                                  const gchar  *key,
14426                                  GtkTreeIter  *iter,
14427                                  gpointer      search_data)
14428 {
14429   gboolean retval = TRUE;
14430   const gchar *str;
14431   gchar *normalized_string;
14432   gchar *normalized_key;
14433   gchar *case_normalized_string = NULL;
14434   gchar *case_normalized_key = NULL;
14435   GValue value = {0,};
14436   GValue transformed = {0,};
14437
14438   gtk_tree_model_get_value (model, iter, column, &value);
14439
14440   g_value_init (&transformed, G_TYPE_STRING);
14441
14442   if (!g_value_transform (&value, &transformed))
14443     {
14444       g_value_unset (&value);
14445       return TRUE;
14446     }
14447
14448   g_value_unset (&value);
14449
14450   str = g_value_get_string (&transformed);
14451   if (!str)
14452     {
14453       g_value_unset (&transformed);
14454       return TRUE;
14455     }
14456
14457   normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
14458   normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
14459
14460   if (normalized_string && normalized_key)
14461     {
14462       case_normalized_string = g_utf8_casefold (normalized_string, -1);
14463       case_normalized_key = g_utf8_casefold (normalized_key, -1);
14464
14465       if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
14466         retval = FALSE;
14467     }
14468
14469   g_value_unset (&transformed);
14470   g_free (normalized_key);
14471   g_free (normalized_string);
14472   g_free (case_normalized_key);
14473   g_free (case_normalized_string);
14474
14475   return retval;
14476 }
14477
14478 static gboolean
14479 gtk_tree_view_search_iter (GtkTreeModel     *model,
14480                            GtkTreeSelection *selection,
14481                            GtkTreeIter      *iter,
14482                            const gchar      *text,
14483                            gint             *count,
14484                            gint              n)
14485 {
14486   GtkRBTree *tree = NULL;
14487   GtkRBNode *node = NULL;
14488   GtkTreePath *path;
14489
14490   GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
14491
14492   path = gtk_tree_model_get_path (model, iter);
14493   _gtk_tree_view_find_node (tree_view, path, &tree, &node);
14494
14495   do
14496     {
14497       if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
14498         {
14499           (*count)++;
14500           if (*count == n)
14501             {
14502               gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
14503                                             TRUE, 0.5, 0.0);
14504               gtk_tree_selection_select_iter (selection, iter);
14505               gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14506
14507               if (path)
14508                 gtk_tree_path_free (path);
14509
14510               return TRUE;
14511             }
14512         }
14513
14514       if (node->children)
14515         {
14516           gboolean has_child;
14517           GtkTreeIter tmp;
14518
14519           tree = node->children;
14520           node = tree->root;
14521
14522           while (node->left != tree->nil)
14523             node = node->left;
14524
14525           tmp = *iter;
14526           has_child = gtk_tree_model_iter_children (model, iter, &tmp);
14527           gtk_tree_path_down (path);
14528
14529           /* sanity check */
14530           TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
14531         }
14532       else
14533         {
14534           gboolean done = FALSE;
14535
14536           do
14537             {
14538               node = _gtk_rbtree_next (tree, node);
14539
14540               if (node)
14541                 {
14542                   gboolean has_next;
14543
14544                   has_next = gtk_tree_model_iter_next (model, iter);
14545
14546                   done = TRUE;
14547                   gtk_tree_path_next (path);
14548
14549                   /* sanity check */
14550                   TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
14551                 }
14552               else
14553                 {
14554                   gboolean has_parent;
14555                   GtkTreeIter tmp_iter = *iter;
14556
14557                   node = tree->parent_node;
14558                   tree = tree->parent_tree;
14559
14560                   if (!tree)
14561                     {
14562                       if (path)
14563                         gtk_tree_path_free (path);
14564
14565                       /* we've run out of tree, done with this func */
14566                       return FALSE;
14567                     }
14568
14569                   has_parent = gtk_tree_model_iter_parent (model,
14570                                                            iter,
14571                                                            &tmp_iter);
14572                   gtk_tree_path_up (path);
14573
14574                   /* sanity check */
14575                   TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
14576                 }
14577             }
14578           while (!done);
14579         }
14580     }
14581   while (1);
14582
14583   return FALSE;
14584 }
14585
14586 static void
14587 gtk_tree_view_search_init (GtkWidget   *entry,
14588                            GtkTreeView *tree_view)
14589 {
14590   gint ret;
14591   gint count = 0;
14592   const gchar *text;
14593   GtkTreeIter iter;
14594   GtkTreeModel *model;
14595   GtkTreeSelection *selection;
14596
14597   g_return_if_fail (GTK_IS_ENTRY (entry));
14598   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
14599
14600   text = gtk_entry_get_text (GTK_ENTRY (entry));
14601
14602   model = gtk_tree_view_get_model (tree_view);
14603   selection = gtk_tree_view_get_selection (tree_view);
14604
14605   /* search */
14606   gtk_tree_selection_unselect_all (selection);
14607   if (tree_view->priv->typeselect_flush_timeout
14608       && !tree_view->priv->search_custom_entry_set)
14609     {
14610       g_source_remove (tree_view->priv->typeselect_flush_timeout);
14611       tree_view->priv->typeselect_flush_timeout =
14612         gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
14613                        (GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
14614                        tree_view);
14615     }
14616
14617   if (*text == '\0')
14618     return;
14619
14620   if (!gtk_tree_model_get_iter_first (model, &iter))
14621     return;
14622
14623   ret = gtk_tree_view_search_iter (model, selection,
14624                                    &iter, text,
14625                                    &count, 1);
14626
14627   if (ret)
14628     tree_view->priv->selected_iter = 1;
14629 }
14630
14631 static void
14632 gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
14633                              GtkTreeView     *tree_view)
14634 {
14635   if (tree_view->priv->edited_column == NULL)
14636     return;
14637
14638   _gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
14639   tree_view->priv->edited_column = NULL;
14640
14641   if (GTK_WIDGET_HAS_FOCUS (cell_editable))
14642     gtk_widget_grab_focus (GTK_WIDGET (tree_view));
14643
14644   g_signal_handlers_disconnect_by_func (cell_editable,
14645                                         gtk_tree_view_remove_widget,
14646                                         tree_view);
14647
14648   gtk_container_remove (GTK_CONTAINER (tree_view),
14649                         GTK_WIDGET (cell_editable));
14650
14651   /* FIXME should only redraw a single node */
14652   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
14653 }
14654
14655 static gboolean
14656 gtk_tree_view_start_editing (GtkTreeView *tree_view,
14657                              GtkTreePath *cursor_path)
14658 {
14659   GtkTreeIter iter;
14660   GdkRectangle background_area;
14661   GdkRectangle cell_area;
14662   GtkCellEditable *editable_widget = NULL;
14663   gchar *path_string;
14664   guint flags = 0; /* can be 0, as the flags are primarily for rendering */
14665   gint retval = FALSE;
14666   GtkRBTree *cursor_tree;
14667   GtkRBNode *cursor_node;
14668
14669   g_assert (tree_view->priv->focus_column);
14670
14671   if (! GTK_WIDGET_REALIZED (tree_view))
14672     return FALSE;
14673
14674   if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
14675       cursor_node == NULL)
14676     return FALSE;
14677
14678   path_string = gtk_tree_path_to_string (cursor_path);
14679   gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
14680
14681   validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
14682
14683   gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
14684                                            tree_view->priv->model,
14685                                            &iter,
14686                                            GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
14687                                            cursor_node->children?TRUE:FALSE);
14688   gtk_tree_view_get_background_area (tree_view,
14689                                      cursor_path,
14690                                      tree_view->priv->focus_column,
14691                                      &background_area);
14692   gtk_tree_view_get_cell_area (tree_view,
14693                                cursor_path,
14694                                tree_view->priv->focus_column,
14695                                &cell_area);
14696
14697   if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
14698                                         &editable_widget,
14699                                         NULL,
14700                                         path_string,
14701                                         &background_area,
14702                                         &cell_area,
14703                                         flags))
14704     {
14705       retval = TRUE;
14706       if (editable_widget != NULL)
14707         {
14708           gint left, right;
14709           GdkRectangle area;
14710           GtkCellRenderer *cell;
14711
14712           area = cell_area;
14713           cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
14714
14715           _gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
14716
14717           area.x += left;
14718           area.width -= right + left;
14719
14720           gtk_tree_view_real_start_editing (tree_view,
14721                                             tree_view->priv->focus_column,
14722                                             cursor_path,
14723                                             editable_widget,
14724                                             &area,
14725                                             NULL,
14726                                             flags);
14727         }
14728
14729     }
14730   g_free (path_string);
14731   return retval;
14732 }
14733
14734 static void
14735 gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
14736                                   GtkTreeViewColumn *column,
14737                                   GtkTreePath       *path,
14738                                   GtkCellEditable   *cell_editable,
14739                                   GdkRectangle      *cell_area,
14740                                   GdkEvent          *event,
14741                                   guint              flags)
14742 {
14743   gint pre_val = tree_view->priv->vadjustment->value;
14744   GtkRequisition requisition;
14745
14746   tree_view->priv->edited_column = column;
14747   _gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
14748
14749   gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
14750   cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
14751
14752   gtk_widget_size_request (GTK_WIDGET (cell_editable), &requisition);
14753
14754   GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
14755
14756   if (requisition.height < cell_area->height)
14757     {
14758       gint diff = cell_area->height - requisition.height;
14759       gtk_tree_view_put (tree_view,
14760                          GTK_WIDGET (cell_editable),
14761                          cell_area->x, cell_area->y + diff/2,
14762                          cell_area->width, requisition.height);
14763     }
14764   else
14765     {
14766       gtk_tree_view_put (tree_view,
14767                          GTK_WIDGET (cell_editable),
14768                          cell_area->x, cell_area->y,
14769                          cell_area->width, cell_area->height);
14770     }
14771
14772   gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
14773                                    (GdkEvent *)event);
14774
14775   gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
14776   g_signal_connect (cell_editable, "remove-widget",
14777                     G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
14778 }
14779
14780 static void
14781 gtk_tree_view_stop_editing (GtkTreeView *tree_view,
14782                             gboolean     cancel_editing)
14783 {
14784   GtkTreeViewColumn *column;
14785   GtkCellRenderer *cell;
14786
14787   if (tree_view->priv->edited_column == NULL)
14788     return;
14789
14790   /*
14791    * This is very evil. We need to do this, because
14792    * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
14793    * later on. If gtk_tree_view_row_changed notices
14794    * tree_view->priv->edited_column != NULL, it'll call
14795    * gtk_tree_view_stop_editing again. Bad things will happen then.
14796    *
14797    * Please read that again if you intend to modify anything here.
14798    */
14799
14800   column = tree_view->priv->edited_column;
14801   tree_view->priv->edited_column = NULL;
14802
14803   cell = _gtk_tree_view_column_get_edited_cell (column);
14804   gtk_cell_renderer_stop_editing (cell, cancel_editing);
14805
14806   if (!cancel_editing)
14807     gtk_cell_editable_editing_done (column->editable_widget);
14808
14809   tree_view->priv->edited_column = column;
14810
14811   gtk_cell_editable_remove_widget (column->editable_widget);
14812 }
14813
14814
14815 /**
14816  * gtk_tree_view_set_hover_selection:
14817  * @tree_view: a #GtkTreeView
14818  * @hover: %TRUE to enable hover selection mode
14819  *
14820  * Enables of disables the hover selection mode of @tree_view.
14821  * Hover selection makes the selected row follow the pointer.
14822  * Currently, this works only for the selection modes
14823  * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
14824  *
14825  * Since: 2.6
14826  **/
14827 void
14828 gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
14829                                    gboolean     hover)
14830 {
14831   hover = hover != FALSE;
14832
14833   if (hover != tree_view->priv->hover_selection)
14834     {
14835       tree_view->priv->hover_selection = hover;
14836
14837       g_object_notify (G_OBJECT (tree_view), "hover-selection");
14838     }
14839 }
14840
14841 /**
14842  * gtk_tree_view_get_hover_selection:
14843  * @tree_view: a #GtkTreeView
14844  *
14845  * Returns whether hover selection mode is turned on for @tree_view.
14846  *
14847  * Return value: %TRUE if @tree_view is in hover selection mode
14848  *
14849  * Since: 2.6
14850  **/
14851 gboolean
14852 gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
14853 {
14854   return tree_view->priv->hover_selection;
14855 }
14856
14857 /**
14858  * gtk_tree_view_set_hover_expand:
14859  * @tree_view: a #GtkTreeView
14860  * @expand: %TRUE to enable hover selection mode
14861  *
14862  * Enables of disables the hover expansion mode of @tree_view.
14863  * Hover expansion makes rows expand or collapse if the pointer
14864  * moves over them.
14865  *
14866  * Since: 2.6
14867  **/
14868 void
14869 gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
14870                                 gboolean     expand)
14871 {
14872   expand = expand != FALSE;
14873
14874   if (expand != tree_view->priv->hover_expand)
14875     {
14876       tree_view->priv->hover_expand = expand;
14877
14878       g_object_notify (G_OBJECT (tree_view), "hover-expand");
14879     }
14880 }
14881
14882 /**
14883  * gtk_tree_view_get_hover_expand:
14884  * @tree_view: a #GtkTreeView
14885  *
14886  * Returns whether hover expansion mode is turned on for @tree_view.
14887  *
14888  * Return value: %TRUE if @tree_view is in hover expansion mode
14889  *
14890  * Since: 2.6
14891  **/
14892 gboolean
14893 gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
14894 {
14895   return tree_view->priv->hover_expand;
14896 }
14897
14898 /**
14899  * gtk_tree_view_set_rubber_banding:
14900  * @tree_view: a #GtkTreeView
14901  * @enable: %TRUE to enable rubber banding
14902  *
14903  * Enables or disables rubber banding in @tree_view.  If the selection mode
14904  * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
14905  * multiple rows by dragging the mouse.
14906  *
14907  * Since: 2.10
14908  **/
14909 void
14910 gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
14911                                   gboolean     enable)
14912 {
14913   enable = enable != FALSE;
14914
14915   if (enable != tree_view->priv->rubber_banding_enable)
14916     {
14917       tree_view->priv->rubber_banding_enable = enable;
14918
14919       g_object_notify (G_OBJECT (tree_view), "rubber-banding");
14920     }
14921 }
14922
14923 /**
14924  * gtk_tree_view_get_rubber_banding:
14925  * @tree_view: a #GtkTreeView
14926  *
14927  * Returns whether rubber banding is turned on for @tree_view.  If the
14928  * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
14929  * user to select multiple rows by dragging the mouse.
14930  *
14931  * Return value: %TRUE if rubber banding in @tree_view is enabled.
14932  *
14933  * Since: 2.10
14934  **/
14935 gboolean
14936 gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
14937 {
14938   return tree_view->priv->rubber_banding_enable;
14939 }
14940
14941 /**
14942  * gtk_tree_view_is_rubber_banding_active:
14943  * @tree_view: a #GtkTreeView
14944  *
14945  * Returns whether a rubber banding operation is currently being done
14946  * in @tree_view.
14947  *
14948  * Return value: %TRUE if a rubber banding operation is currently being
14949  * done in @tree_view.
14950  *
14951  * Since: 2.12
14952  **/
14953 gboolean
14954 gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
14955 {
14956   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
14957
14958   if (tree_view->priv->rubber_banding_enable
14959       && tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
14960     return TRUE;
14961
14962   return FALSE;
14963 }
14964
14965 /**
14966  * gtk_tree_view_get_row_separator_func:
14967  * @tree_view: a #GtkTreeView
14968  *
14969  * Returns the current row separator function.
14970  *
14971  * Return value: the current row separator function.
14972  *
14973  * Since: 2.6
14974  **/
14975 GtkTreeViewRowSeparatorFunc
14976 gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
14977 {
14978   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
14979
14980   return tree_view->priv->row_separator_func;
14981 }
14982
14983 /**
14984  * gtk_tree_view_set_row_separator_func:
14985  * @tree_view: a #GtkTreeView
14986  * @func: a #GtkTreeViewRowSeparatorFunc
14987  * @data: user data to pass to @func, or %NULL
14988  * @destroy: destroy notifier for @data, or %NULL
14989  *
14990  * Sets the row separator function, which is used to determine
14991  * whether a row should be drawn as a separator. If the row separator
14992  * function is %NULL, no separators are drawn. This is the default value.
14993  *
14994  * Since: 2.6
14995  **/
14996 void
14997 gtk_tree_view_set_row_separator_func (GtkTreeView                 *tree_view,
14998                                       GtkTreeViewRowSeparatorFunc  func,
14999                                       gpointer                     data,
15000                                       GDestroyNotify               destroy)
15001 {
15002   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15003
15004   if (tree_view->priv->row_separator_destroy)
15005     tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
15006
15007   tree_view->priv->row_separator_func = func;
15008   tree_view->priv->row_separator_data = data;
15009   tree_view->priv->row_separator_destroy = destroy;
15010 }
15011
15012
15013 static void
15014 gtk_tree_view_grab_notify (GtkWidget *widget,
15015                            gboolean   was_grabbed)
15016 {
15017   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15018
15019   tree_view->priv->in_grab = !was_grabbed;
15020
15021   if (!was_grabbed)
15022     {
15023       tree_view->priv->pressed_button = -1;
15024
15025       if (tree_view->priv->rubber_band_status)
15026         gtk_tree_view_stop_rubber_band (tree_view);
15027     }
15028 }
15029
15030 static void
15031 gtk_tree_view_state_changed (GtkWidget      *widget,
15032                              GtkStateType    previous_state)
15033 {
15034   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15035
15036   if (GTK_WIDGET_REALIZED (widget))
15037     {
15038       gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
15039       gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
15040     }
15041
15042   gtk_widget_queue_draw (widget);
15043 }
15044
15045 /**
15046  * gtk_tree_view_get_grid_lines:
15047  * @tree_view: a #GtkTreeView
15048  *
15049  * Returns which grid lines are enabled in @tree_view.
15050  *
15051  * Return value: a #GtkTreeViewGridLines value indicating which grid lines
15052  * are enabled.
15053  *
15054  * Since: 2.10
15055  */
15056 GtkTreeViewGridLines
15057 gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
15058 {
15059   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15060
15061   return tree_view->priv->grid_lines;
15062 }
15063
15064 /**
15065  * gtk_tree_view_set_grid_lines:
15066  * @tree_view: a #GtkTreeView
15067  * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
15068  * enable.
15069  *
15070  * Sets which grid lines to draw in @tree_view.
15071  *
15072  * Since: 2.10
15073  */
15074 void
15075 gtk_tree_view_set_grid_lines (GtkTreeView           *tree_view,
15076                               GtkTreeViewGridLines   grid_lines)
15077 {
15078   GtkTreeViewPrivate *priv;
15079   GtkWidget *widget;
15080   GtkTreeViewGridLines old_grid_lines;
15081
15082   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15083
15084   priv = tree_view->priv;
15085   widget = GTK_WIDGET (tree_view);
15086
15087   old_grid_lines = priv->grid_lines;
15088   priv->grid_lines = grid_lines;
15089
15090   if (GTK_WIDGET_REALIZED (widget))
15091     {
15092       if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
15093           priv->grid_line_gc)
15094         {
15095           g_object_unref (priv->grid_line_gc);
15096           priv->grid_line_gc = NULL;
15097         }
15098
15099       if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
15100           !priv->grid_line_gc)
15101         {
15102           gint line_width;
15103           gint8 *dash_list;
15104
15105           gtk_widget_style_get (widget,
15106                                 "grid-line-width", &line_width,
15107                                 "grid-line-pattern", (gchar *)&dash_list,
15108                                 NULL);
15109
15110           priv->grid_line_gc = gdk_gc_new (widget->window);
15111           gdk_gc_copy (priv->grid_line_gc, widget->style->black_gc);
15112
15113           gdk_gc_set_line_attributes (priv->grid_line_gc, line_width,
15114                                       GDK_LINE_ON_OFF_DASH,
15115                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15116           gdk_gc_set_dashes (priv->grid_line_gc, 0, dash_list, 2);
15117
15118           g_free (dash_list);
15119         }
15120     }
15121
15122   if (old_grid_lines != grid_lines)
15123     {
15124       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15125
15126       g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
15127     }
15128 }
15129
15130 /**
15131  * gtk_tree_view_get_enable_tree_lines:
15132  * @tree_view: a #GtkTreeView.
15133  *
15134  * Returns whether or not tree lines are drawn in @tree_view.
15135  *
15136  * Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
15137  * otherwise.
15138  *
15139  * Since: 2.10
15140  */
15141 gboolean
15142 gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
15143 {
15144   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15145
15146   return tree_view->priv->tree_lines_enabled;
15147 }
15148
15149 /**
15150  * gtk_tree_view_set_enable_tree_lines:
15151  * @tree_view: a #GtkTreeView
15152  * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
15153  *
15154  * Sets whether to draw lines interconnecting the expanders in @tree_view.
15155  * This does not have any visible effects for lists.
15156  *
15157  * Since: 2.10
15158  */
15159 void
15160 gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
15161                                      gboolean     enabled)
15162 {
15163   GtkTreeViewPrivate *priv;
15164   GtkWidget *widget;
15165   gboolean was_enabled;
15166
15167   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15168
15169   enabled = enabled != FALSE;
15170
15171   priv = tree_view->priv;
15172   widget = GTK_WIDGET (tree_view);
15173
15174   was_enabled = priv->tree_lines_enabled;
15175
15176   priv->tree_lines_enabled = enabled;
15177
15178   if (GTK_WIDGET_REALIZED (widget))
15179     {
15180       if (!enabled && priv->tree_line_gc)
15181         {
15182           g_object_unref (priv->tree_line_gc);
15183           priv->tree_line_gc = NULL;
15184         }
15185
15186       if (enabled && !priv->tree_line_gc)
15187         {
15188           gint line_width;
15189           gint8 *dash_list;
15190           gtk_widget_style_get (widget,
15191                                 "tree-line-width", &line_width,
15192                                 "tree-line-pattern", (gchar *)&dash_list,
15193                                 NULL);
15194
15195           priv->tree_line_gc = gdk_gc_new (widget->window);
15196           gdk_gc_copy (priv->tree_line_gc, widget->style->black_gc);
15197
15198           gdk_gc_set_line_attributes (priv->tree_line_gc, line_width,
15199                                       GDK_LINE_ON_OFF_DASH,
15200                                       GDK_CAP_BUTT, GDK_JOIN_MITER);
15201           gdk_gc_set_dashes (priv->tree_line_gc, 0, dash_list, 2);
15202
15203           g_free (dash_list);
15204         }
15205     }
15206
15207   if (was_enabled != enabled)
15208     {
15209       gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15210
15211       g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
15212     }
15213 }
15214
15215
15216 /**
15217  * gtk_tree_view_set_show_expanders:
15218  * @tree_view: a #GtkTreeView
15219  * @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
15220  *
15221  * Sets whether to draw and enable expanders and indent child rows in
15222  * @tree_view.  When disabled there will be no expanders visible in trees
15223  * and there will be no way to expand and collapse rows by default.  Also
15224  * note that hiding the expanders will disable the default indentation.  You
15225  * can set a custom indentation in this case using
15226  * gtk_tree_view_set_level_indentation().
15227  * This does not have any visible effects for lists.
15228  *
15229  * Since: 2.12
15230  */
15231 void
15232 gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
15233                                   gboolean     enabled)
15234 {
15235   gboolean was_enabled;
15236
15237   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15238
15239   enabled = enabled != FALSE;
15240   was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15241
15242   if (enabled)
15243     GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15244   else
15245     GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15246
15247   if (enabled != was_enabled)
15248     gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15249 }
15250
15251 /**
15252  * gtk_tree_view_get_show_expanders:
15253  * @tree_view: a #GtkTreeView.
15254  *
15255  * Returns whether or not expanders are drawn in @tree_view.
15256  *
15257  * Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
15258  * otherwise.
15259  *
15260  * Since: 2.12
15261  */
15262 gboolean
15263 gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
15264 {
15265   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15266
15267   return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
15268 }
15269
15270 /**
15271  * gtk_tree_view_set_level_indentation:
15272  * @tree_view: a #GtkTreeView
15273  * @indentation: the amount, in pixels, of extra indentation in @tree_view.
15274  *
15275  * Sets the amount of extra indentation for child levels to use in @tree_view
15276  * in addition to the default indentation.  The value should be specified in
15277  * pixels, a value of 0 disables this feature and in this case only the default
15278  * indentation will be used.
15279  * This does not have any visible effects for lists.
15280  *
15281  * Since: 2.12
15282  */
15283 void
15284 gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
15285                                      gint         indentation)
15286 {
15287   tree_view->priv->level_indentation = indentation;
15288
15289   gtk_widget_queue_draw (GTK_WIDGET (tree_view));
15290 }
15291
15292 /**
15293  * gtk_tree_view_get_level_indentation:
15294  * @tree_view: a #GtkTreeView.
15295  *
15296  * Returns the amount, in pixels, of extra indentation for child levels
15297  * in @tree_view.
15298  *
15299  * Return value: the amount of extra indentation for child levels in
15300  * @tree_view.  A return value of 0 means that this feature is disabled.
15301  *
15302  * Since: 2.12
15303  */
15304 gint
15305 gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
15306 {
15307   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15308
15309   return tree_view->priv->level_indentation;
15310 }
15311
15312 /**
15313  * gtk_tree_view_set_tooltip_row:
15314  * @tree_view: a #GtkTreeView
15315  * @tooltip: a #GtkTooltip
15316  * @path: a #GtkTreePath
15317  *
15318  * Sets the tip area of @tooltip to be the area covered by the row at @path.
15319  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15320  * See also gtk_tooltip_set_tip_area().
15321  *
15322  * Since: 2.12
15323  */
15324 void
15325 gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
15326                                GtkTooltip  *tooltip,
15327                                GtkTreePath *path)
15328 {
15329   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15330   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15331
15332   gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
15333 }
15334
15335 /**
15336  * gtk_tree_view_set_tooltip_cell:
15337  * @tree_view: a #GtkTreeView
15338  * @tooltip: a #GtkTooltip
15339  * @path: a #GtkTreePath or %NULL
15340  * @column: a #GtkTreeViewColumn or %NULL
15341  * @cell: a #GtkCellRenderer or %NULL
15342  *
15343  * Sets the tip area of @tooltip to the area @path, @column and @cell have
15344  * in common.  For example if @path is %NULL and @column is set, the tip
15345  * area will be set to the full area covered by @column.  See also
15346  * gtk_tooltip_set_tip_area().
15347  *
15348  * Note that if @path is not specified and @cell is set and part of a column
15349  * containing the expander, the tooltip might not show and hide at the correct
15350  * position.  In such cases @path must be set to the current node under the
15351  * mouse cursor for this function to operate correctly.
15352  *
15353  * See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
15354  *
15355  * Since: 2.12
15356  */
15357 void
15358 gtk_tree_view_set_tooltip_cell (GtkTreeView       *tree_view,
15359                                 GtkTooltip        *tooltip,
15360                                 GtkTreePath       *path,
15361                                 GtkTreeViewColumn *column,
15362                                 GtkCellRenderer   *cell)
15363 {
15364   GdkRectangle rect;
15365
15366   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15367   g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
15368   g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
15369   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
15370
15371   /* Determine x values. */
15372   if (column && cell)
15373     {
15374       GdkRectangle tmp;
15375       gint start, width;
15376
15377       /* We always pass in path here, whether it is NULL or not.
15378        * For cells in expander columns path must be specified so that
15379        * we can correctly account for the indentation.  This also means
15380        * that the tooltip is constrained vertically by the "Determine y
15381        * values" code below; this is not a real problem since cells actually
15382        * don't stretch vertically in constrast to columns.
15383        */
15384       gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
15385       gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
15386
15387       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15388                                                          tmp.x + start, 0,
15389                                                          &rect.x, NULL);
15390       rect.width = width;
15391     }
15392   else if (column)
15393     {
15394       GdkRectangle tmp;
15395
15396       gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
15397       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15398                                                          tmp.x, 0,
15399                                                          &rect.x, NULL);
15400       rect.width = tmp.width;
15401     }
15402   else
15403     {
15404       rect.x = 0;
15405       rect.width = GTK_WIDGET (tree_view)->allocation.width;
15406     }
15407
15408   /* Determine y values. */
15409   if (path)
15410     {
15411       GdkRectangle tmp;
15412
15413       gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
15414       gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
15415                                                          0, tmp.y,
15416                                                          NULL, &rect.y);
15417       rect.height = tmp.height;
15418     }
15419   else
15420     {
15421       rect.y = 0;
15422       rect.height = tree_view->priv->vadjustment->page_size;
15423     }
15424
15425   gtk_tooltip_set_tip_area (tooltip, &rect);
15426 }
15427
15428 /**
15429  * gtk_tree_view_get_tooltip_context:
15430  * @tree_view: a #GtkTreeView
15431  * @x: the x coordinate (relative to widget coordinates)
15432  * @y: the y coordinate (relative to widget coordinates)
15433  * @keyboard_tip: whether this is a keyboard tooltip or not
15434  * @model: a pointer to receive a #GtkTreeModel or %NULL
15435  * @path: a pointer to receive a #GtkTreePath or %NULL
15436  * @iter: a pointer to receive a #GtkTreeIter or %NULL
15437  *
15438  * This function is supposed to be used in a #GtkWidget::query-tooltip
15439  * signal handler for #GtkTreeView.  The @x, @y and @keyboard_tip values
15440  * which are received in the signal handler, should be passed to this
15441  * function without modification.
15442  *
15443  * The return value indicates whether there is a tree view row at the given
15444  * coordinates (%TRUE) or not (%FALSE) for mouse tooltips.  For keyboard
15445  * tooltips the row returned will be the cursor row.  When %TRUE, then any of
15446  * @model, @path and @iter which have been provided will be set to point to
15447  * that row and the corresponding model.  @x and @y will always be converted
15448  * to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
15449  *
15450  * Return value: whether or not the given tooltip context points to a row.
15451  *
15452  * Since: 2.12
15453  */
15454 gboolean
15455 gtk_tree_view_get_tooltip_context (GtkTreeView   *tree_view,
15456                                    gint          *x,
15457                                    gint          *y,
15458                                    gboolean       keyboard_tip,
15459                                    GtkTreeModel **model,
15460                                    GtkTreePath  **path,
15461                                    GtkTreeIter   *iter)
15462 {
15463   GtkTreePath *tmppath = NULL;
15464
15465   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
15466   g_return_val_if_fail (x != NULL, FALSE);
15467   g_return_val_if_fail (y != NULL, FALSE);
15468
15469   if (keyboard_tip)
15470     {
15471       gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
15472
15473       if (!tmppath)
15474         return FALSE;
15475     }
15476   else
15477     {
15478       gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
15479                                                          x, y);
15480
15481       if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
15482                                           &tmppath, NULL, NULL, NULL))
15483         return FALSE;
15484     }
15485
15486   if (model)
15487     *model = gtk_tree_view_get_model (tree_view);
15488
15489   if (iter)
15490     gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
15491                              iter, tmppath);
15492
15493   if (path)
15494     *path = tmppath;
15495   else
15496     gtk_tree_path_free (tmppath);
15497
15498   return TRUE;
15499 }
15500
15501 static gboolean
15502 gtk_tree_view_set_tooltip_query_cb (GtkWidget  *widget,
15503                                     gint        x,
15504                                     gint        y,
15505                                     gboolean    keyboard_tip,
15506                                     GtkTooltip *tooltip,
15507                                     gpointer    data)
15508 {
15509   GValue value = { 0, };
15510   GValue transformed = { 0, };
15511   GtkTreeIter iter;
15512   GtkTreePath *path;
15513   GtkTreeModel *model;
15514   GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
15515
15516   if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
15517                                           &x, &y,
15518                                           keyboard_tip,
15519                                           &model, &path, &iter))
15520     return FALSE;
15521
15522   gtk_tree_model_get_value (model, &iter,
15523                             tree_view->priv->tooltip_column, &value);
15524
15525   g_value_init (&transformed, G_TYPE_STRING);
15526
15527   if (!g_value_transform (&value, &transformed))
15528     {
15529       g_value_unset (&value);
15530       gtk_tree_path_free (path);
15531
15532       return FALSE;
15533     }
15534
15535   g_value_unset (&value);
15536
15537   if (!g_value_get_string (&transformed))
15538     {
15539       g_value_unset (&transformed);
15540       gtk_tree_path_free (path);
15541
15542       return FALSE;
15543     }
15544
15545   gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
15546   gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
15547
15548   gtk_tree_path_free (path);
15549   g_value_unset (&transformed);
15550
15551   return TRUE;
15552 }
15553
15554 /**
15555  * gtk_tree_view_set_tooltip_column:
15556  * @tree_view: a #GtkTreeView
15557  * @column: an integer, which is a valid column number for @tree_view's model
15558  *
15559  * If you only plan to have simple (text-only) tooltips on full rows, you
15560  * can use this function to have #GtkTreeView handle these automatically
15561  * for you. @column should be set to the column in @tree_view's model
15562  * containing the tooltip texts, or -1 to disable this feature.
15563  *
15564  * When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
15565  * @tree_view will connect a #GtkWidget::query-tooltip signal handler.
15566  *
15567  * Note that the signal handler sets the text with gtk_tooltip_set_markup(),
15568  * so &amp;, &lt;, etc have to be escaped in the text.
15569  *
15570  * Since: 2.12
15571  */
15572 void
15573 gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
15574                                   gint         column)
15575 {
15576   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
15577
15578   if (column == tree_view->priv->tooltip_column)
15579     return;
15580
15581   if (column == -1)
15582     {
15583       g_signal_handlers_disconnect_by_func (tree_view,
15584                                             gtk_tree_view_set_tooltip_query_cb,
15585                                             NULL);
15586       gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
15587     }
15588   else
15589     {
15590       if (tree_view->priv->tooltip_column == -1)
15591         {
15592           g_signal_connect (tree_view, "query-tooltip",
15593                             G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
15594           gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
15595         }
15596     }
15597
15598   tree_view->priv->tooltip_column = column;
15599   g_object_notify (G_OBJECT (tree_view), "tooltip-column");
15600 }
15601
15602 /**
15603  * gtk_tree_view_get_tooltip_column:
15604  * @tree_view: a #GtkTreeView
15605  *
15606  * Returns the column of @tree_view's model which is being used for
15607  * displaying tooltips on @tree_view's rows.
15608  *
15609  * Return value: the index of the tooltip column that is currently being
15610  * used, or -1 if this is disabled.
15611  *
15612  * Since: 2.12
15613  */
15614 gint
15615 gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
15616 {
15617   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
15618
15619   return tree_view->priv->tooltip_column;
15620 }
15621
15622 #define __GTK_TREE_VIEW_C__
15623 #include "gtkaliasdef.c"