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

   1 /* gtkiconview.c
   2  * Copyright (C) 2002, 2004  Anders Carlsson <andersca@gnu.org>
   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 #include <config.h>
  21 #include <string.h>
  22
  23 #include <atk/atk.h>
  24
  25 #include <gdk/gdkkeysyms.h>
  26
  27 #include "gtkiconview.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkcellrenderer.h"
  30 #include "gtkcellrenderertext.h"
  31 #include "gtkcellrendererpixbuf.h"
  32 #include "gtkmarshalers.h"
  33 #include "gtkbindings.h"
  34 #include "gtkdnd.h"
  35 #include "gtkmain.h"
  36 #include "gtksignal.h"
  37 #include "gtkintl.h"
  38 #include "gtkaccessible.h"
  39 #include "gtkwindow.h"
  40 #include "gtkentry.h"
  41 #include "gtkcombobox.h"
  42 #include "gtktextbuffer.h"
  43 #include "gtktreednd.h"
  44 #include "gtkprivate.h"
  45 #include "gtkalias.h"
  46
  47 #undef DEBUG_ICON_VIEW
  48
  49 #define SCROLL_EDGE_SIZE 15
  50
  51 #define GTK_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ICON_VIEW, GtkIconViewPrivate))
  52
  53 typedef struct _GtkIconViewItem GtkIconViewItem;
  54 struct _GtkIconViewItem
  55 {
  56   GtkTreeIter iter;
  57   gint index;
  58
  59   gint row, col;
  60
  61   /* Bounding box */
  62   gint x, y, width, height;
  63
  64   /* Individual cells.
  65    * box[i] is the actual area occupied by cell i,
  66    * before, after are used to calculate the cell
  67    * area relative to the box.
  68    * See gtk_icon_view_get_cell_area().
  69    */
  70   gint n_cells;
  71   GdkRectangle *box;
  72   gint *before;
  73   gint *after;
  74
  75   guint selected : 1;
  76   guint selected_before_rubberbanding : 1;
  77
  78 };
  79
  80 typedef struct _GtkIconViewCellInfo GtkIconViewCellInfo;
  81 struct _GtkIconViewCellInfo
  82 {
  83   GtkCellRenderer *cell;
  84
  85   guint expand : 1;
  86   guint pack : 1;
  87   guint editing : 1;
  88
  89   gint position;
  90
  91   GSList *attributes;
  92
  93   GtkCellLayoutDataFunc func;
  94   gpointer func_data;
  95   GDestroyNotify destroy;
  96 };
  97
  98 typedef struct _GtkIconViewChild GtkIconViewChild;
  99 struct _GtkIconViewChild
 100 {
 101   GtkWidget *widget;
 102   GtkIconViewItem *item;
 103   gint cell;
 104 };
 105
 106 struct _GtkIconViewPrivate
 107 {
 108   gint width, height;
 109
 110   GtkSelectionMode selection_mode;
 111
 112   GdkWindow *bin_window;
 113
 114   GList *children;
 115
 116   GtkTreeModel *model;
 117
 118   GList *items;
 119
 120   GtkAdjustment *hadjustment;
 121   GtkAdjustment *vadjustment;
 122
 123   guint layout_idle_id;
 124
 125   gboolean doing_rubberband;
 126   gint rubberband_x1, rubberband_y1;
 127   gint rubberband_x2, rubberband_y2;
 128
 129   guint scroll_timeout_id;
 130   gint scroll_value_diff;
 131   gint event_last_x, event_last_y;
 132
 133   GtkIconViewItem *anchor_item;
 134   GtkIconViewItem *cursor_item;
 135   GtkIconViewItem *edited_item;
 136   GtkCellEditable *editable;
 137
 138   GtkIconViewItem *last_single_clicked;
 139
 140   GList *cell_list;
 141   guint n_cells;
 142
 143   gint cursor_cell;
 144
 145   GtkOrientation orientation;
 146
 147   gint columns;
 148   gint item_width;
 149   gint spacing;
 150   gint row_spacing;
 151   gint column_spacing;
 152   gint margin;
 153
 154   gint text_column;
 155   gint markup_column;
 156   gint pixbuf_column;
 157
 158   gint pixbuf_cell;
 159   gint text_cell;
 160
 161   /* Drag-and-drop. */
 162   GdkModifierType start_button_mask;
 163   gint pressed_button;
 164   gint press_start_x;
 165   gint press_start_y;
 166
 167   GtkTargetList *source_targets;
 168   GdkDragAction source_actions;
 169
 170   GtkTargetList *dest_targets;
 171   GdkDragAction dest_actions;
 172
 173   GtkTreeRowReference *dest_item;
 174   GtkIconViewDropPosition dest_pos;
 175
 176   /* scroll to */
 177   GtkTreeRowReference *scroll_to_path;
 178   gfloat scroll_to_row_align;
 179   gfloat scroll_to_col_align;
 180   guint scroll_to_use_align : 1;
 181
 182   guint source_set : 1;
 183   guint dest_set : 1;
 184   guint reorderable : 1;
 185   guint empty_view_drop :1;
 186
 187   guint ctrl_pressed : 1;
 188   guint shift_pressed : 1;
 189 };
 190
 191 /* Signals */
 192 enum
 193 {
 194   ITEM_ACTIVATED,
 195   SELECTION_CHANGED,
 196   SELECT_ALL,
 197   UNSELECT_ALL,
 198   SELECT_CURSOR_ITEM,
 199   TOGGLE_CURSOR_ITEM,
 200   MOVE_CURSOR,
 201   ACTIVATE_CURSOR_ITEM,
 202   LAST_SIGNAL
 203 };
 204
 205 /* Properties */
 206 enum
 207 {
 208   PROP_0,
 209   PROP_PIXBUF_COLUMN,
 210   PROP_TEXT_COLUMN,
 211   PROP_MARKUP_COLUMN,
 212   PROP_SELECTION_MODE,
 213   PROP_ORIENTATION,
 214   PROP_MODEL,
 215   PROP_COLUMNS,
 216   PROP_ITEM_WIDTH,
 217   PROP_SPACING,
 218   PROP_ROW_SPACING,
 219   PROP_COLUMN_SPACING,
 220   PROP_MARGIN,
 221   PROP_REORDERABLE
 222 };
 223
 224 /* GObject vfuncs */
 225 static void             gtk_icon_view_cell_layout_init          (GtkCellLayoutIface *iface);
 226 static void             gtk_icon_view_finalize                  (GObject            *object);
 227 static void             gtk_icon_view_set_property              (GObject            *object,
 228                                                                  guint               prop_id,
 229                                                                  const GValue       *value,
 230                                                                  GParamSpec         *pspec);
 231 static void             gtk_icon_view_get_property              (GObject            *object,
 232                                                                  guint               prop_id,
 233                                                                  GValue             *value,
 234                                                                  GParamSpec         *pspec);
 235
 236 /* GtkObject vfuncs */
 237 static void             gtk_icon_view_destroy                   (GtkObject          *object);
 238
 239 /* GtkWidget vfuncs */
 240 static void             gtk_icon_view_realize                   (GtkWidget          *widget);
 241 static void             gtk_icon_view_unrealize                 (GtkWidget          *widget);
 242 static void             gtk_icon_view_style_set                 (GtkWidget        *widget,
 243                                                                  GtkStyle         *previous_style);
 244 static void             gtk_icon_view_state_changed             (GtkWidget        *widget,
 245                                                                  GtkStateType      previous_state);
 246 static void             gtk_icon_view_size_request              (GtkWidget          *widget,
 247                                                                  GtkRequisition     *requisition);
 248 static void             gtk_icon_view_size_allocate             (GtkWidget          *widget,
 249                                                                  GtkAllocation      *allocation);
 250 static gboolean         gtk_icon_view_expose                    (GtkWidget          *widget,
 251                                                                  GdkEventExpose     *expose);
 252 static gboolean         gtk_icon_view_motion                    (GtkWidget          *widget,
 253                                                                  GdkEventMotion     *event);
 254 static gboolean         gtk_icon_view_button_press              (GtkWidget          *widget,
 255                                                                  GdkEventButton     *event);
 256 static gboolean         gtk_icon_view_button_release            (GtkWidget          *widget,
 257                                                                  GdkEventButton     *event);
 258 static AtkObject       *gtk_icon_view_get_accessible            (GtkWidget          *widget);
 259
 260
 261 /* GtkContainer vfuncs */
 262 static void             gtk_icon_view_remove                    (GtkContainer       *container,
 263                                                                  GtkWidget          *widget);
 264 static void             gtk_icon_view_forall                    (GtkContainer       *container,
 265                                                                  gboolean            include_internals,
 266                                                                  GtkCallback         callback,
 267                                                                  gpointer            callback_data);
 268
 269 /* GtkIconView vfuncs */
 270 static void             gtk_icon_view_set_adjustments           (GtkIconView        *icon_view,
 271                                                                  GtkAdjustment      *hadj,
 272                                                                  GtkAdjustment      *vadj);
 273 static void             gtk_icon_view_real_select_all           (GtkIconView        *icon_view);
 274 static void             gtk_icon_view_real_unselect_all         (GtkIconView        *icon_view);
 275 static void             gtk_icon_view_real_select_cursor_item   (GtkIconView        *icon_view);
 276 static void             gtk_icon_view_real_toggle_cursor_item   (GtkIconView        *icon_view);
 277 static gboolean         gtk_icon_view_real_activate_cursor_item (GtkIconView        *icon_view);
 278
 279  /* Internal functions */
 280 static void                 gtk_icon_view_adjustment_changed             (GtkAdjustment          *adjustment,
 281                                                                           GtkIconView            *icon_view);
 282 static void                 gtk_icon_view_layout                         (GtkIconView            *icon_view);
 283 static void                 gtk_icon_view_paint_item                     (GtkIconView            *icon_view,
 284                                                                           cairo_t *cr,
 285
 286                                                                           GtkIconViewItem        *item,
 287                                                                           GdkRectangle           *area,
 288                                                                           GdkDrawable *drawable,
 289                                                                           gint         x,
 290                                                                           gint         y,
 291                                                                           gboolean     draw_focus);
 292 static void                 gtk_icon_view_paint_rubberband               (GtkIconView            *icon_view,
 293                                                                           cairo_t *cr,
 294                                                                           GdkRectangle           *area);
 295 static void                 gtk_icon_view_queue_draw_path                (GtkIconView *icon_view,
 296                                                                           GtkTreePath *path);
 297 static void                 gtk_icon_view_queue_draw_item                (GtkIconView            *icon_view,
 298                                                                           GtkIconViewItem        *item);
 299 static void                 gtk_icon_view_queue_layout                   (GtkIconView            *icon_view);
 300 static void                 gtk_icon_view_set_cursor_item                (GtkIconView            *icon_view,
 301                                                                           GtkIconViewItem        *item,
 302                                                                           gint                    cursor_cell);
 303 static void                 gtk_icon_view_start_rubberbanding            (GtkIconView            *icon_view,
 304                                                                           gint                    x,
 305                                                                           gint                    y);
 306 static void                 gtk_icon_view_stop_rubberbanding             (GtkIconView            *icon_view);
 307 static void                 gtk_icon_view_update_rubberband_selection    (GtkIconView            *icon_view);
 308 static gboolean             gtk_icon_view_item_hit_test                  (GtkIconView            *icon_view,
 309                                                                           GtkIconViewItem        *item,
 310                                                                           gint                    x,
 311                                                                           gint                    y,
 312                                                                           gint                    width,
 313                                                                           gint                    height);
 314 static gboolean             gtk_icon_view_unselect_all_internal          (GtkIconView            *icon_view);
 315 static void                 gtk_icon_view_calculate_item_size            (GtkIconView            *icon_view,
 316                                                                           GtkIconViewItem        *item);
 317 static void                 gtk_icon_view_calculate_item_size2           (GtkIconView            *icon_view,
 318                                                                           GtkIconViewItem        *item,
 319                                                                           gint                   *max_height);
 320 static void                 gtk_icon_view_update_rubberband              (gpointer                data);
 321 static void                 gtk_icon_view_item_invalidate_size           (GtkIconViewItem        *item);
 322 static void                 gtk_icon_view_invalidate_sizes               (GtkIconView            *icon_view);
 323 static void                 gtk_icon_view_add_move_binding               (GtkBindingSet          *binding_set,
 324                                                                           guint                   keyval,
 325                                                                           guint                   modmask,
 326                                                                           GtkMovementStep         step,
 327                                                                           gint                    count);
 328 static gboolean             gtk_icon_view_real_move_cursor               (GtkIconView            *icon_view,
 329                                                                           GtkMovementStep         step,
 330                                                                           gint                    count);
 331 static void                 gtk_icon_view_move_cursor_up_down            (GtkIconView            *icon_view,
 332                                                                           gint                    count);
 333 static void                 gtk_icon_view_move_cursor_page_up_down       (GtkIconView            *icon_view,
 334                                                                           gint                    count);
 335 static void                 gtk_icon_view_move_cursor_left_right         (GtkIconView            *icon_view,
 336                                                                           gint                    count);
 337 static void                 gtk_icon_view_move_cursor_start_end          (GtkIconView            *icon_view,
 338                                                                           gint                    count);
 339 static void                 gtk_icon_view_scroll_to_item                 (GtkIconView            *icon_view,
 340                                                                           GtkIconViewItem        *item);
 341 static void                 gtk_icon_view_select_item                    (GtkIconView            *icon_view,
 342                                                                           GtkIconViewItem        *item);
 343 static void                 gtk_icon_view_unselect_item                  (GtkIconView            *icon_view,
 344                                                                           GtkIconViewItem        *item);
 345 static gboolean             gtk_icon_view_select_all_between             (GtkIconView            *icon_view,
 346                                                                           GtkIconViewItem        *anchor,
 347                                                                           GtkIconViewItem        *cursor);
 348 static GtkIconViewItem *    gtk_icon_view_get_item_at_coords             (GtkIconView            *icon_view,
 349                                                                           gint                    x,
 350                                                                           gint                    y,
 351                                                                           gboolean                only_in_cell,
 352                                                                           GtkIconViewCellInfo   **cell_at_pos);
 353 static void                 gtk_icon_view_get_cell_area                  (GtkIconView            *icon_view,
 354                                                                           GtkIconViewItem        *item,
 355                                                                           GtkIconViewCellInfo    *cell_info,
 356                                                                           GdkRectangle           *cell_area);
 357 static void                 gtk_icon_view_get_cell_box                   (GtkIconView            *icon_view,
 358                                                                           GtkIconViewItem        *item,
 359                                                                           GtkIconViewCellInfo    *info,
 360                                                                           GdkRectangle           *box);
 361 static GtkIconViewCellInfo *gtk_icon_view_get_cell_info                  (GtkIconView            *icon_view,
 362                                                                           GtkCellRenderer        *renderer);
 363 static void                 gtk_icon_view_set_cell_data                  (GtkIconView            *icon_view,
 364                                                                           GtkIconViewItem        *item);
 365 static void                 gtk_icon_view_cell_layout_pack_start         (GtkCellLayout          *layout,
 366                                                                           GtkCellRenderer        *renderer,
 367                                                                           gboolean                expand);
 368 static void                 gtk_icon_view_cell_layout_pack_end           (GtkCellLayout          *layout,
 369                                                                           GtkCellRenderer        *renderer,
 370                                                                           gboolean                expand);
 371 static void                 gtk_icon_view_cell_layout_add_attribute      (GtkCellLayout          *layout,
 372                                                                           GtkCellRenderer        *renderer,
 373                                                                           const gchar            *attribute,
 374                                                                           gint                    column);
 375 static void                 gtk_icon_view_cell_layout_clear              (GtkCellLayout          *layout);
 376 static void                 gtk_icon_view_cell_layout_clear_attributes   (GtkCellLayout          *layout,
 377                                                                           GtkCellRenderer        *renderer);
 378 static void                 gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout          *layout,
 379                                                                           GtkCellRenderer        *cell,
 380                                                                           GtkCellLayoutDataFunc   func,
 381                                                                           gpointer                func_data,
 382                                                                           GDestroyNotify          destroy);
 383 static void                 gtk_icon_view_cell_layout_reorder            (GtkCellLayout          *layout,
 384                                                                           GtkCellRenderer        *cell,
 385                                                                           gint                    position);
 386 static void                 gtk_icon_view_item_activate_cell             (GtkIconView            *icon_view,
 387                                                                           GtkIconViewItem        *item,
 388                                                                           GtkIconViewCellInfo    *cell_info,
 389                                                                           GdkEvent               *event);
 390 static void                 gtk_icon_view_put                            (GtkIconView            *icon_view,
 391                                                                           GtkWidget              *widget,
 392                                                                           GtkIconViewItem        *item,
 393                                                                           gint                    cell);
 394 static void                 gtk_icon_view_remove_widget                  (GtkCellEditable        *editable,
 395                                                                           GtkIconView            *icon_view);
 396 static void                 gtk_icon_view_start_editing                  (GtkIconView            *icon_view,
 397                                                                           GtkIconViewItem        *item,
 398                                                                           GtkIconViewCellInfo    *cell_info,
 399                                                                           GdkEvent               *event);
 400 static void                 gtk_icon_view_stop_editing                   (GtkIconView            *icon_view,
 401                                                                           gboolean                cancel_editing);
 402
 403 /* Source side drag signals */
 404 static void gtk_icon_view_drag_begin       (GtkWidget        *widget,
 405                                             GdkDragContext   *context);
 406 static void gtk_icon_view_drag_end         (GtkWidget        *widget,
 407                                             GdkDragContext   *context);
 408 static void gtk_icon_view_drag_data_get    (GtkWidget        *widget,
 409                                             GdkDragContext   *context,
 410                                             GtkSelectionData *selection_data,
 411                                             guint             info,
 412                                             guint             time);
 413 static void gtk_icon_view_drag_data_delete (GtkWidget        *widget,
 414                                             GdkDragContext   *context);
 415
 416 /* Target side drag signals */
 417 static void     gtk_icon_view_drag_leave         (GtkWidget        *widget,
 418                                                   GdkDragContext   *context,
 419                                                   guint             time);
 420 static gboolean gtk_icon_view_drag_motion        (GtkWidget        *widget,
 421                                                   GdkDragContext   *context,
 422                                                   gint              x,
 423                                                   gint              y,
 424                                                   guint             time);
 425 static gboolean gtk_icon_view_drag_drop          (GtkWidget        *widget,
 426                                                   GdkDragContext   *context,
 427                                                   gint              x,
 428                                                   gint              y,
 429                                                   guint             time);
 430 static void     gtk_icon_view_drag_data_received (GtkWidget        *widget,
 431                                                   GdkDragContext   *context,
 432                                                   gint              x,
 433                                                   gint              y,
 434                                                   GtkSelectionData *selection_data,
 435                                                   guint             info,
 436                                                   guint             time);
 437 static gboolean gtk_icon_view_maybe_begin_drag   (GtkIconView             *icon_view,
 438                                                   GdkEventMotion          *event);
 439
 440 static void     remove_scroll_timeout            (GtkIconView *icon_view);
 441
 442
 443 static guint icon_view_signals[LAST_SIGNAL] = { 0 };
 444
 445 G_DEFINE_TYPE_WITH_CODE (GtkIconView, gtk_icon_view, GTK_TYPE_CONTAINER,
 446                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 447                                                 gtk_icon_view_cell_layout_init))
 448
 449 static void
 450 gtk_icon_view_class_init (GtkIconViewClass *klass)
 451 {
 452   GObjectClass *gobject_class;
 453   GtkObjectClass *object_class;
 454   GtkWidgetClass *widget_class;
 455   GtkContainerClass *container_class;
 456   GtkBindingSet *binding_set;
 457
 458   binding_set = gtk_binding_set_by_class (klass);
 459
 460   g_type_class_add_private (klass, sizeof (GtkIconViewPrivate));
 461
 462   gobject_class = (GObjectClass *) klass;
 463   object_class = (GtkObjectClass *) klass;
 464   widget_class = (GtkWidgetClass *) klass;
 465   container_class = (GtkContainerClass *) klass;
 466
 467   gobject_class->finalize = gtk_icon_view_finalize;
 468   gobject_class->set_property = gtk_icon_view_set_property;
 469   gobject_class->get_property = gtk_icon_view_get_property;
 470
 471   object_class->destroy = gtk_icon_view_destroy;
 472
 473   widget_class->realize = gtk_icon_view_realize;
 474   widget_class->unrealize = gtk_icon_view_unrealize;
 475   widget_class->style_set = gtk_icon_view_style_set;
 476   widget_class->get_accessible = gtk_icon_view_get_accessible;
 477   widget_class->size_request = gtk_icon_view_size_request;
 478   widget_class->size_allocate = gtk_icon_view_size_allocate;
 479   widget_class->expose_event = gtk_icon_view_expose;
 480   widget_class->motion_notify_event = gtk_icon_view_motion;
 481   widget_class->button_press_event = gtk_icon_view_button_press;
 482   widget_class->button_release_event = gtk_icon_view_button_release;
 483   widget_class->drag_begin = gtk_icon_view_drag_begin;
 484   widget_class->drag_end = gtk_icon_view_drag_end;
 485   widget_class->drag_data_get = gtk_icon_view_drag_data_get;
 486   widget_class->drag_data_delete = gtk_icon_view_drag_data_delete;
 487   widget_class->drag_leave = gtk_icon_view_drag_leave;
 488   widget_class->drag_motion = gtk_icon_view_drag_motion;
 489   widget_class->drag_drop = gtk_icon_view_drag_drop;
 490   widget_class->drag_data_received = gtk_icon_view_drag_data_received;
 491   widget_class->state_changed = gtk_icon_view_state_changed;
 492
 493   container_class->remove = gtk_icon_view_remove;
 494   container_class->forall = gtk_icon_view_forall;
 495
 496   klass->set_scroll_adjustments = gtk_icon_view_set_adjustments;
 497   klass->select_all = gtk_icon_view_real_select_all;
 498   klass->unselect_all = gtk_icon_view_real_unselect_all;
 499   klass->select_cursor_item = gtk_icon_view_real_select_cursor_item;
 500   klass->toggle_cursor_item = gtk_icon_view_real_toggle_cursor_item;
 501   klass->activate_cursor_item = gtk_icon_view_real_activate_cursor_item;
 502   klass->move_cursor = gtk_icon_view_real_move_cursor;
 503
 504   /* Properties */
 505   /**
 506    * GtkIconView:selection-mode:
 507    *
 508    * The ::selection-mode property specifies the selection mode of
 509    * icon view. If the mode is #GTK_SELECTION_MULTIPLE, rubberband selection
 510    * is enabled, for the other modes, only keyboard selection is possible.
 511    *
 512    * Since: 2.6
 513    */
 514   g_object_class_install_property (gobject_class,
 515                                    PROP_SELECTION_MODE,
 516                                    g_param_spec_enum ("selection-mode",
 517                                                       P_("Selection mode"),
 518                                                       P_("The selection mode"),
 519                                                       GTK_TYPE_SELECTION_MODE,
 520                                                       GTK_SELECTION_SINGLE,
 521                                                       GTK_PARAM_READWRITE));
 522
 523   /**
 524    * GtkIconView:pixbuf-column:
 525    *
 526    * The ::pixbuf-column property contains the number of the model column
 527    * containing the pixbufs which are displayed. The pixbuf column must be
 528    * of type #GDK_TYPE_PIXBUF. Setting this property to -1 turns off the
 529    * display of pixbufs.
 530    *
 531    * Since: 2.6
 532    */
 533   g_object_class_install_property (gobject_class,
 534                                    PROP_PIXBUF_COLUMN,
 535                                    g_param_spec_int ("pixbuf-column",
 536                                                      P_("Pixbuf column"),
 537                                                      P_("Model column used to retrieve the icon pixbuf from"),
 538                                                      -1, G_MAXINT, -1,
 539                                                      GTK_PARAM_READWRITE));
 540
 541   /**
 542    * GtkIconView:text-column:
 543    *
 544    * The ::text-column property contains the number of the model column
 545    * containing the texts which are displayed. The text column must be
 546    * of type #G_TYPE_STRING. If this property and the :markup-column
 547    * property are both set to -1, no texts are displayed.
 548    *
 549    * Since: 2.6
 550    */
 551   g_object_class_install_property (gobject_class,
 552                                    PROP_TEXT_COLUMN,
 553                                    g_param_spec_int ("text-column",
 554                                                      P_("Text column"),
 555                                                      P_("Model column used to retrieve the text from"),
 556                                                      -1, G_MAXINT, -1,
 557                                                      GTK_PARAM_READWRITE));
 558
 559
 560   /**
 561    * GtkIconView:markup-column:
 562    *
 563    * The ::markup-column property contains the number of the model column
 564    * containing markup information to be displayed. The markup column must be
 565    * of type #G_TYPE_STRING. If this property and the :text-column property
 566    * are both set to column numbers, it overrides the text column.
 567    * If both are set to -1, no texts are displayed.
 568    *
 569    * Since: 2.6
 570    */
 571   g_object_class_install_property (gobject_class,
 572                                    PROP_MARKUP_COLUMN,
 573                                    g_param_spec_int ("markup-column",
 574                                                      P_("Markup column"),
 575                                                      P_("Model column used to retrieve the text if using Pango markup"),
 576                                                      -1, G_MAXINT, -1,
 577                                                      GTK_PARAM_READWRITE));
 578
 579   g_object_class_install_property (gobject_class,
 580                                    PROP_MODEL,
 581                                    g_param_spec_object ("model",
 582                                                         P_("Icon View Model"),
 583                                                         P_("The model for the icon view"),
 584                                                         GTK_TYPE_TREE_MODEL,
 585                                                         GTK_PARAM_READWRITE));
 586
 587   /**
 588    * GtkIconView:columns:
 589    *
 590    * The columns property contains the number of the columns in which the
 591    * items should be displayed. If it is -1, the number of columns will
 592    * be chosen automatically to fill the available area.
 593    *
 594    * Since: 2.6
 595    */
 596   g_object_class_install_property (gobject_class,
 597                                    PROP_COLUMNS,
 598                                    g_param_spec_int ("columns",
 599                                                      P_("Number of columns"),
 600                                                      P_("Number of columns to display"),
 601                                                      -1, G_MAXINT, -1,
 602                                                      GTK_PARAM_READWRITE));
 603
 604
 605   /**
 606    * GtkIconView:item-width:
 607    *
 608    * The item-width property specifies the width to use for each item.
 609    * If it is set to -1, the icon view will automatically determine a
 610    * suitable item size.
 611    *
 612    * Since: 2.6
 613    */
 614   g_object_class_install_property (gobject_class,
 615                                    PROP_ITEM_WIDTH,
 616                                    g_param_spec_int ("item-width",
 617                                                      P_("Width for each item"),
 618                                                      P_("The width used for each item"),
 619                                                      -1, G_MAXINT, -1,
 620                                                      GTK_PARAM_READWRITE));
 621
 622   /**
 623    * GtkIconView:spacing:
 624    *
 625    * The spacing property specifies the space which is inserted between
 626    * the cells (i.e. the icon and the text) of an item.
 627    *
 628    * Since: 2.6
 629    */
 630   g_object_class_install_property (gobject_class,
 631                                    PROP_SPACING,
 632                                    g_param_spec_int ("spacing",
 633                                                      P_("Spacing"),
 634                                                      P_("Space which is inserted between cells of an item"),
 635                                                      0, G_MAXINT, 0,
 636                                                      GTK_PARAM_READWRITE));
 637
 638   /**
 639    * GtkIconView:row-spacing:
 640    *
 641    * The row-spacing property specifies the space which is inserted between
 642    * the rows of the icon view.
 643    *
 644    * Since: 2.6
 645    */
 646   g_object_class_install_property (gobject_class,
 647                                    PROP_ROW_SPACING,
 648                                    g_param_spec_int ("row-spacing",
 649                                                      P_("Row Spacing"),
 650                                                      P_("Space which is inserted between grid rows"),
 651                                                      0, G_MAXINT, 6,
 652                                                      GTK_PARAM_READWRITE));
 653
 654   /**
 655    * GtkIconView:column-spacing:
 656    *
 657    * The column-spacing property specifies the space which is inserted between
 658    * the columns of the icon view.
 659    *
 660    * Since: 2.6
 661    */
 662   g_object_class_install_property (gobject_class,
 663                                    PROP_COLUMN_SPACING,
 664                                    g_param_spec_int ("column-spacing",
 665                                                      P_("Column Spacing"),
 666                                                      P_("Space which is inserted between grid columns"),
 667                                                      0, G_MAXINT, 6,
 668                                                      GTK_PARAM_READWRITE));
 669
 670   /**
 671    * GtkIconView:margin:
 672    *
 673    * The margin property specifies the space which is inserted
 674    * at the edges of the icon view.
 675    *
 676    * Since: 2.6
 677    */
 678   g_object_class_install_property (gobject_class,
 679                                    PROP_MARGIN,
 680                                    g_param_spec_int ("margin",
 681                                                      P_("Margin"),
 682                                                      P_("Space which is inserted at the edges of the icon view"),
 683                                                      0, G_MAXINT, 6,
 684                                                      GTK_PARAM_READWRITE));
 685
 686
 687   /**
 688    * GtkIconView:orientation:
 689    *
 690    * The orientation property specifies how the cells (i.e. the icon and
 691    * the text) of the item are positioned relative to each other.
 692    *
 693    * Since: 2.6
 694    */
 695   g_object_class_install_property (gobject_class,
 696                                    PROP_ORIENTATION,
 697                                    g_param_spec_enum ("orientation",
 698                                                       P_("Orientation"),
 699                                                       P_("How the text and icon of each item are positioned relative to each other"),
 700                                                       GTK_TYPE_ORIENTATION,
 701                                                       GTK_ORIENTATION_VERTICAL,
 702                                                       GTK_PARAM_READWRITE));
 703
 704   /**
 705    * GtkIconView:reorderable:
 706    *
 707    * The reorderable property specifies if the items can be reordered
 708    * by DND.
 709    *
 710    * Since: 2.8
 711    */
 712   g_object_class_install_property (gobject_class,
 713                                    PROP_REORDERABLE,
 714                                    g_param_spec_boolean ("reorderable",
 715                                                          P_("Reorderable"),
 716                                                          P_("View is reorderable"),
 717                                                          FALSE,
 718                                                          G_PARAM_READWRITE));
 719
 720   /* Style properties */
 721   gtk_widget_class_install_style_property (widget_class,
 722                                            g_param_spec_boxed ("selection-box-color",
 723                                                                P_("Selection Box Color"),
 724                                                                P_("Color of the selection box"),
 725                                                                GDK_TYPE_COLOR,
 726                                                                GTK_PARAM_READABLE));
 727
 728   gtk_widget_class_install_style_property (widget_class,
 729                                            g_param_spec_uchar ("selection-box-alpha",
 730                                                                P_("Selection Box Alpha"),
 731                                                                P_("Opacity of the selection box"),
 732                                                                0, 0xff,
 733                                                                0x40,
 734                                                                GTK_PARAM_READABLE));
 735
 736   /* Signals */
 737   widget_class->set_scroll_adjustments_signal =
 738     g_signal_new (I_("set_scroll_adjustments"),
 739                   G_TYPE_FROM_CLASS (gobject_class),
 740                   G_SIGNAL_RUN_LAST,
 741                   G_STRUCT_OFFSET (GtkIconViewClass, set_scroll_adjustments),
 742                   NULL, NULL,
 743                   _gtk_marshal_VOID__OBJECT_OBJECT,
 744                   G_TYPE_NONE, 2,
 745                   GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
 746
 747   icon_view_signals[ITEM_ACTIVATED] =
 748     g_signal_new (I_("item_activated"),
 749                   G_TYPE_FROM_CLASS (gobject_class),
 750                   G_SIGNAL_RUN_LAST,
 751                   G_STRUCT_OFFSET (GtkIconViewClass, item_activated),
 752                   NULL, NULL,
 753                   g_cclosure_marshal_VOID__BOXED,
 754                   G_TYPE_NONE, 1,
 755                   GTK_TYPE_TREE_PATH);
 756
 757   icon_view_signals[SELECTION_CHANGED] =
 758     g_signal_new (I_("selection-changed"),
 759                   G_TYPE_FROM_CLASS (gobject_class),
 760                   G_SIGNAL_RUN_FIRST,
 761                   G_STRUCT_OFFSET (GtkIconViewClass, selection_changed),
 762                   NULL, NULL,
 763                   g_cclosure_marshal_VOID__VOID,
 764                   G_TYPE_NONE, 0);
 765
 766   icon_view_signals[SELECT_ALL] =
 767     g_signal_new (I_("select_all"),
 768                   G_TYPE_FROM_CLASS (gobject_class),
 769                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 770                   G_STRUCT_OFFSET (GtkIconViewClass, select_all),
 771                   NULL, NULL,
 772                   g_cclosure_marshal_VOID__VOID,
 773                   G_TYPE_NONE, 0);
 774
 775   icon_view_signals[UNSELECT_ALL] =
 776     g_signal_new (I_("unselect_all"),
 777                   G_TYPE_FROM_CLASS (gobject_class),
 778                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 779                   G_STRUCT_OFFSET (GtkIconViewClass, unselect_all),
 780                   NULL, NULL,
 781                   g_cclosure_marshal_VOID__VOID,
 782                   G_TYPE_NONE, 0);
 783
 784   icon_view_signals[SELECT_CURSOR_ITEM] =
 785     g_signal_new (I_("select_cursor_item"),
 786                   G_TYPE_FROM_CLASS (gobject_class),
 787                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 788                   G_STRUCT_OFFSET (GtkIconViewClass, select_cursor_item),
 789                   NULL, NULL,
 790                   g_cclosure_marshal_VOID__VOID,
 791                   G_TYPE_NONE, 0);
 792
 793   icon_view_signals[TOGGLE_CURSOR_ITEM] =
 794     g_signal_new (I_("toggle_cursor_item"),
 795                   G_TYPE_FROM_CLASS (gobject_class),
 796                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 797                   G_STRUCT_OFFSET (GtkIconViewClass, toggle_cursor_item),
 798                   NULL, NULL,
 799                   g_cclosure_marshal_VOID__VOID,
 800                   G_TYPE_NONE, 0);
 801
 802   icon_view_signals[ACTIVATE_CURSOR_ITEM] =
 803     g_signal_new (I_("activate_cursor_item"),
 804                   G_TYPE_FROM_CLASS (gobject_class),
 805                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 806                   G_STRUCT_OFFSET (GtkIconViewClass, activate_cursor_item),
 807                   NULL, NULL,
 808                   _gtk_marshal_BOOLEAN__VOID,
 809                   G_TYPE_BOOLEAN, 0);
 810
 811   icon_view_signals[MOVE_CURSOR] =
 812     g_signal_new (I_("move_cursor"),
 813                   G_TYPE_FROM_CLASS (gobject_class),
 814                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 815                   G_STRUCT_OFFSET (GtkIconViewClass, move_cursor),
 816                   NULL, NULL,
 817                   _gtk_marshal_BOOLEAN__ENUM_INT,
 818                   G_TYPE_BOOLEAN, 2,
 819                   GTK_TYPE_MOVEMENT_STEP,
 820                   G_TYPE_INT);
 821
 822   /* Key bindings */
 823   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
 824                                 "select_all", 0);
 825   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
 826                                 "unselect_all", 0);
 827   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK,
 828                                 "toggle_cursor_item", 0);
 829
 830   gtk_binding_entry_add_signal (binding_set, GDK_space, 0,
 831                                 "activate_cursor_item", 0);
 832   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
 833                                 "activate_cursor_item", 0);
 834   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
 835                                 "activate_cursor_item", 0);
 836   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
 837                                 "activate_cursor_item", 0);
 838
 839   gtk_icon_view_add_move_binding (binding_set, GDK_Up, 0,
 840                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 841   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Up, 0,
 842                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 843
 844   gtk_icon_view_add_move_binding (binding_set, GDK_Down, 0,
 845                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 846   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Down, 0,
 847                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 848
 849   gtk_icon_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
 850                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 851
 852   gtk_icon_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
 853                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 854
 855   gtk_icon_view_add_move_binding (binding_set, GDK_Home, 0,
 856                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
 857   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Home, 0,
 858                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
 859
 860   gtk_icon_view_add_move_binding (binding_set, GDK_End, 0,
 861                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
 862   gtk_icon_view_add_move_binding (binding_set, GDK_KP_End, 0,
 863                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
 864
 865   gtk_icon_view_add_move_binding (binding_set, GDK_Page_Up, 0,
 866                                   GTK_MOVEMENT_PAGES, -1);
 867   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0,
 868                                   GTK_MOVEMENT_PAGES, -1);
 869
 870   gtk_icon_view_add_move_binding (binding_set, GDK_Page_Down, 0,
 871                                   GTK_MOVEMENT_PAGES, 1);
 872   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0,
 873                                   GTK_MOVEMENT_PAGES, 1);
 874
 875   gtk_icon_view_add_move_binding (binding_set, GDK_Right, 0,
 876                                   GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 877   gtk_icon_view_add_move_binding (binding_set, GDK_Left, 0,
 878                                   GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 879
 880   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Right, 0,
 881                                   GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 882   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Left, 0,
 883                                   GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 884 }
 885
 886 static void
 887 gtk_icon_view_cell_layout_init (GtkCellLayoutIface *iface)
 888 {
 889   iface->pack_start = gtk_icon_view_cell_layout_pack_start;
 890   iface->pack_end = gtk_icon_view_cell_layout_pack_end;
 891   iface->clear = gtk_icon_view_cell_layout_clear;
 892   iface->add_attribute = gtk_icon_view_cell_layout_add_attribute;
 893   iface->set_cell_data_func = gtk_icon_view_cell_layout_set_cell_data_func;
 894   iface->clear_attributes = gtk_icon_view_cell_layout_clear_attributes;
 895   iface->reorder = gtk_icon_view_cell_layout_reorder;
 896 }
 897
 898 static void
 899 gtk_icon_view_init (GtkIconView *icon_view)
 900 {
 901   icon_view->priv = GTK_ICON_VIEW_GET_PRIVATE (icon_view);
 902
 903   icon_view->priv->width = 0;
 904   icon_view->priv->height = 0;
 905   icon_view->priv->selection_mode = GTK_SELECTION_SINGLE;
 906   icon_view->priv->pressed_button = -1;
 907   icon_view->priv->press_start_x = -1;
 908   icon_view->priv->press_start_y = -1;
 909   icon_view->priv->text_column = -1;
 910   icon_view->priv->markup_column = -1;
 911   icon_view->priv->pixbuf_column = -1;
 912   icon_view->priv->text_cell = -1;
 913   icon_view->priv->pixbuf_cell = -1;
 914
 915   GTK_WIDGET_SET_FLAGS (icon_view, GTK_CAN_FOCUS);
 916
 917   gtk_icon_view_set_adjustments (icon_view, NULL, NULL);
 918
 919   icon_view->priv->cell_list = NULL;
 920   icon_view->priv->n_cells = 0;
 921   icon_view->priv->cursor_cell = -1;
 922
 923   icon_view->priv->orientation = GTK_ORIENTATION_VERTICAL;
 924
 925   icon_view->priv->columns = -1;
 926   icon_view->priv->item_width = -1;
 927   icon_view->priv->spacing = 0;
 928   icon_view->priv->row_spacing = 6;
 929   icon_view->priv->column_spacing = 6;
 930   icon_view->priv->margin = 6;
 931 }
 932
 933 static void
 934 gtk_icon_view_destroy (GtkObject *object)
 935 {
 936   GtkIconView *icon_view;
 937
 938   icon_view = GTK_ICON_VIEW (object);
 939
 940   gtk_icon_view_stop_editing (icon_view, TRUE);
 941
 942   gtk_icon_view_set_model (icon_view, NULL);
 943
 944   if (icon_view->priv->layout_idle_id != 0)
 945     {
 946       g_source_remove (icon_view->priv->layout_idle_id);
 947       icon_view->priv->layout_idle_id = 0;
 948     }
 949
 950   if (icon_view->priv->scroll_to_path != NULL)
 951     {
 952       gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
 953       icon_view->priv->scroll_to_path = NULL;
 954     }
 955
 956   remove_scroll_timeout (icon_view);
 957
 958   if (icon_view->priv->hadjustment != NULL)
 959     {
 960       g_object_unref (icon_view->priv->hadjustment);
 961       icon_view->priv->hadjustment = NULL;
 962     }
 963
 964   if (icon_view->priv->vadjustment != NULL)
 965     {
 966       g_object_unref (icon_view->priv->vadjustment);
 967       icon_view->priv->vadjustment = NULL;
 968     }
 969
 970   (* GTK_OBJECT_CLASS (gtk_icon_view_parent_class)->destroy) (object);
 971 }
 972
 973 /* GObject methods */
 974 static void
 975 gtk_icon_view_finalize (GObject *object)
 976 {
 977   gtk_icon_view_cell_layout_clear (GTK_CELL_LAYOUT (object));
 978
 979   (* G_OBJECT_CLASS (gtk_icon_view_parent_class)->finalize) (object);
 980 }
 981
 982
 983 static void
 984 gtk_icon_view_set_property (GObject      *object,
 985                             guint         prop_id,
 986                             const GValue *value,
 987                             GParamSpec   *pspec)
 988 {
 989   GtkIconView *icon_view;
 990
 991   icon_view = GTK_ICON_VIEW (object);
 992
 993   switch (prop_id)
 994     {
 995     case PROP_SELECTION_MODE:
 996       gtk_icon_view_set_selection_mode (icon_view, g_value_get_enum (value));
 997       break;
 998     case PROP_PIXBUF_COLUMN:
 999       gtk_icon_view_set_pixbuf_column (icon_view, g_value_get_int (value));
1000       break;
1001     case PROP_TEXT_COLUMN:
1002       gtk_icon_view_set_text_column (icon_view, g_value_get_int (value));
1003       break;
1004     case PROP_MARKUP_COLUMN:
1005       gtk_icon_view_set_markup_column (icon_view, g_value_get_int (value));
1006       break;
1007     case PROP_MODEL:
1008       gtk_icon_view_set_model (icon_view, g_value_get_object (value));
1009       break;
1010     case PROP_ORIENTATION:
1011       gtk_icon_view_set_orientation (icon_view, g_value_get_enum (value));
1012       break;
1013     case PROP_COLUMNS:
1014       gtk_icon_view_set_columns (icon_view, g_value_get_int (value));
1015       break;
1016     case PROP_ITEM_WIDTH:
1017       gtk_icon_view_set_item_width (icon_view, g_value_get_int (value));
1018       break;
1019     case PROP_SPACING:
1020       gtk_icon_view_set_spacing (icon_view, g_value_get_int (value));
1021       break;
1022     case PROP_ROW_SPACING:
1023       gtk_icon_view_set_row_spacing (icon_view, g_value_get_int (value));
1024       break;
1025     case PROP_COLUMN_SPACING:
1026       gtk_icon_view_set_column_spacing (icon_view, g_value_get_int (value));
1027       break;
1028     case PROP_MARGIN:
1029       gtk_icon_view_set_margin (icon_view, g_value_get_int (value));
1030       break;
1031     case PROP_REORDERABLE:
1032       gtk_icon_view_set_reorderable (icon_view, g_value_get_boolean (value));
1033       break;
1034
1035     default:
1036       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1037       break;
1038     }
1039 }
1040
1041 static void
1042 gtk_icon_view_get_property (GObject      *object,
1043                             guint         prop_id,
1044                             GValue       *value,
1045                             GParamSpec   *pspec)
1046 {
1047   GtkIconView *icon_view;
1048
1049   icon_view = GTK_ICON_VIEW (object);
1050
1051   switch (prop_id)
1052     {
1053     case PROP_SELECTION_MODE:
1054       g_value_set_enum (value, icon_view->priv->selection_mode);
1055       break;
1056     case PROP_PIXBUF_COLUMN:
1057       g_value_set_int (value, icon_view->priv->pixbuf_column);
1058       break;
1059     case PROP_TEXT_COLUMN:
1060       g_value_set_int (value, icon_view->priv->text_column);
1061       break;
1062     case PROP_MARKUP_COLUMN:
1063       g_value_set_int (value, icon_view->priv->markup_column);
1064       break;
1065     case PROP_MODEL:
1066       g_value_set_object (value, icon_view->priv->model);
1067       break;
1068     case PROP_ORIENTATION:
1069       g_value_set_enum (value, icon_view->priv->orientation);
1070       break;
1071     case PROP_COLUMNS:
1072       g_value_set_int (value, icon_view->priv->columns);
1073       break;
1074     case PROP_ITEM_WIDTH:
1075       g_value_set_int (value, icon_view->priv->item_width);
1076       break;
1077     case PROP_SPACING:
1078       g_value_set_int (value, icon_view->priv->spacing);
1079       break;
1080     case PROP_ROW_SPACING:
1081       g_value_set_int (value, icon_view->priv->row_spacing);
1082       break;
1083     case PROP_COLUMN_SPACING:
1084       g_value_set_int (value, icon_view->priv->column_spacing);
1085       break;
1086     case PROP_MARGIN:
1087       g_value_set_int (value, icon_view->priv->margin);
1088       break;
1089     case PROP_REORDERABLE:
1090       g_value_set_boolean (value, icon_view->priv->reorderable);
1091       break;
1092
1093     default:
1094       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1095       break;
1096     }
1097 }
1098
1099 /* GtkWidget signals */
1100 static void
1101 gtk_icon_view_realize (GtkWidget *widget)
1102 {
1103   GtkIconView *icon_view;
1104   GdkWindowAttr attributes;
1105   gint attributes_mask;
1106
1107   icon_view = GTK_ICON_VIEW (widget);
1108
1109   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
1110
1111   /* Make the main, clipping window */
1112   attributes.window_type = GDK_WINDOW_CHILD;
1113   attributes.x = widget->allocation.x;
1114   attributes.y = widget->allocation.y;
1115   attributes.width = widget->allocation.width;
1116   attributes.height = widget->allocation.height;
1117   attributes.wclass = GDK_INPUT_OUTPUT;
1118   attributes.visual = gtk_widget_get_visual (widget);
1119   attributes.colormap = gtk_widget_get_colormap (widget);
1120   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
1121
1122   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
1123
1124   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
1125                                    &attributes, attributes_mask);
1126   gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
1127   gdk_window_set_user_data (widget->window, widget);
1128
1129   /* Make the window for the icon view */
1130   attributes.x = 0;
1131   attributes.y = 0;
1132   attributes.width = MAX (icon_view->priv->width, widget->allocation.width);
1133   attributes.height = MAX (icon_view->priv->height, widget->allocation.height);
1134   attributes.event_mask = (GDK_EXPOSURE_MASK |
1135                            GDK_SCROLL_MASK |
1136                            GDK_POINTER_MOTION_MASK |
1137                            GDK_BUTTON_PRESS_MASK |
1138                            GDK_BUTTON_RELEASE_MASK |
1139                            GDK_KEY_PRESS_MASK |
1140                            GDK_KEY_RELEASE_MASK) |
1141     gtk_widget_get_events (widget);
1142
1143   icon_view->priv->bin_window = gdk_window_new (widget->window,
1144                                                 &attributes, attributes_mask);
1145   gdk_window_set_user_data (icon_view->priv->bin_window, widget);
1146
1147   widget->style = gtk_style_attach (widget->style, widget->window);
1148   gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]);
1149
1150   gdk_window_show (icon_view->priv->bin_window);
1151 }
1152
1153 static void
1154 gtk_icon_view_unrealize (GtkWidget *widget)
1155 {
1156   GtkIconView *icon_view;
1157
1158   icon_view = GTK_ICON_VIEW (widget);
1159
1160   gdk_window_set_user_data (icon_view->priv->bin_window, NULL);
1161   gdk_window_destroy (icon_view->priv->bin_window);
1162   icon_view->priv->bin_window = NULL;
1163
1164   /* GtkWidget::unrealize destroys children and widget->window */
1165   if (GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->unrealize)
1166     (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->unrealize) (widget);
1167 }
1168
1169 static void
1170 gtk_icon_view_state_changed (GtkWidget      *widget,
1171                              GtkStateType    previous_state)
1172 {
1173   GtkIconView *icon_view = GTK_ICON_VIEW (widget);
1174
1175   if (GTK_WIDGET_REALIZED (widget))
1176     {
1177       gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
1178       gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]);
1179     }
1180
1181   gtk_widget_queue_draw (widget);
1182 }
1183
1184 static void
1185 gtk_icon_view_style_set (GtkWidget *widget,
1186                          GtkStyle *previous_style)
1187 {
1188   GtkIconView *icon_view;
1189
1190   g_return_if_fail (GTK_IS_ICON_VIEW (widget));
1191
1192   icon_view = GTK_ICON_VIEW (widget);
1193
1194   if (GTK_WIDGET_REALIZED (widget))
1195     {
1196       gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
1197       gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]);
1198     }
1199
1200   gtk_widget_queue_resize (widget);
1201 }
1202
1203 static void
1204 gtk_icon_view_size_request (GtkWidget      *widget,
1205                             GtkRequisition *requisition)
1206 {
1207   GtkIconView *icon_view;
1208   GList *tmp_list;
1209
1210   icon_view = GTK_ICON_VIEW (widget);
1211
1212   requisition->width = icon_view->priv->width;
1213   requisition->height = icon_view->priv->height;
1214
1215   tmp_list = icon_view->priv->children;
1216
1217   while (tmp_list)
1218     {
1219       GtkIconViewChild *child = tmp_list->data;
1220       GtkRequisition child_requisition;
1221
1222       tmp_list = tmp_list->next;
1223
1224       if (GTK_WIDGET_VISIBLE (child->widget))
1225         gtk_widget_size_request (child->widget, &child_requisition);
1226     }
1227 }
1228
1229 static void
1230 gtk_icon_view_allocate_children (GtkIconView *icon_view)
1231 {
1232   GList *list;
1233
1234   for (list = icon_view->priv->children; list; list = list->next)
1235     {
1236       GtkIconViewChild *child = list->data;
1237       GtkAllocation allocation;
1238
1239       /* totally ignore our child's requisition */
1240       if (child->cell < 0)
1241         {
1242           allocation.x = child->item->x;
1243           allocation.y = child->item->y;
1244           allocation.width = child->item->width;
1245           allocation.height = child->item->height;
1246         }
1247       else
1248         {
1249           GdkRectangle *box = &child->item->box[child->cell];
1250
1251           allocation.x = box->x;
1252           allocation.y = box->y;
1253           allocation.width = box->width;
1254           allocation.height = box->height;
1255         }
1256
1257       gtk_widget_size_allocate (child->widget, &allocation);
1258     }
1259 }
1260
1261 static void
1262 gtk_icon_view_size_allocate (GtkWidget      *widget,
1263                              GtkAllocation  *allocation)
1264 {
1265   GtkIconView *icon_view = GTK_ICON_VIEW (widget);
1266
1267   GtkAdjustment *hadjustment, *vadjustment;
1268
1269   widget->allocation = *allocation;
1270
1271   if (GTK_WIDGET_REALIZED (widget))
1272     {
1273       gdk_window_move_resize (widget->window,
1274                               allocation->x, allocation->y,
1275                               allocation->width, allocation->height);
1276       gdk_window_resize (icon_view->priv->bin_window,
1277                          MAX (icon_view->priv->width, allocation->width),
1278                          MAX (icon_view->priv->height, allocation->height));
1279     }
1280
1281   gtk_icon_view_layout (icon_view);
1282
1283   gtk_icon_view_allocate_children (icon_view);
1284
1285   hadjustment = icon_view->priv->hadjustment;
1286   vadjustment = icon_view->priv->vadjustment;
1287
1288   hadjustment->page_size = allocation->width;
1289   hadjustment->page_increment = allocation->width * 0.9;
1290   hadjustment->step_increment = allocation->width * 0.1;
1291   hadjustment->lower = 0;
1292   hadjustment->upper = MAX (allocation->width, icon_view->priv->width);
1293
1294   if (hadjustment->value > hadjustment->upper - hadjustment->page_size)
1295     gtk_adjustment_set_value (hadjustment, MAX (0, hadjustment->upper - hadjustment->page_size));
1296
1297   vadjustment->page_size = allocation->height;
1298   vadjustment->page_increment = allocation->height * 0.9;
1299   vadjustment->step_increment = allocation->height * 0.1;
1300   vadjustment->lower = 0;
1301   vadjustment->upper = MAX (allocation->height, icon_view->priv->height);
1302
1303   if (vadjustment->value > vadjustment->upper - vadjustment->page_size)
1304     gtk_adjustment_set_value (vadjustment, MAX (0, vadjustment->upper - vadjustment->page_size));
1305
1306   if (GTK_WIDGET_REALIZED (widget) &&
1307       icon_view->priv->scroll_to_path)
1308     {
1309       GtkTreePath *path;
1310       path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path);
1311       gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
1312       icon_view->priv->scroll_to_path = NULL;
1313
1314       gtk_icon_view_scroll_to_path (icon_view, path,
1315                                     icon_view->priv->scroll_to_use_align,
1316                                     icon_view->priv->scroll_to_row_align,
1317                                     icon_view->priv->scroll_to_col_align);
1318       gtk_tree_path_free (path);
1319     }
1320   else
1321     {
1322       gtk_adjustment_changed (hadjustment);
1323       gtk_adjustment_changed (vadjustment);
1324     }
1325 }
1326
1327 static gboolean
1328 gtk_icon_view_expose (GtkWidget *widget,
1329                       GdkEventExpose *expose)
1330 {
1331   GtkIconView *icon_view;
1332   GList *icons;
1333   cairo_t *cr;
1334   GtkTreePath *path;
1335   gint dest_index;
1336   GtkIconViewDropPosition dest_pos;
1337   GtkIconViewItem *dest_item = NULL;
1338
1339   icon_view = GTK_ICON_VIEW (widget);
1340
1341   if (expose->window != icon_view->priv->bin_window)
1342     return FALSE;
1343
1344   cr = gdk_cairo_create (icon_view->priv->bin_window);
1345   cairo_set_line_width (cr, 1.);
1346
1347   gtk_icon_view_get_drag_dest_item (icon_view, &path, &dest_pos);
1348
1349   if (path)
1350     {
1351       dest_index = gtk_tree_path_get_indices (path)[0];
1352       gtk_tree_path_free (path);
1353     }
1354   else
1355     dest_index = -1;
1356
1357   for (icons = icon_view->priv->items; icons; icons = icons->next)
1358     {
1359       GtkIconViewItem *item = icons->data;
1360       GdkRectangle area;
1361
1362       area.x = item->x;
1363       area.y = item->y;
1364       area.width = item->width;
1365       area.height = item->height;
1366
1367       if (gdk_region_rect_in (expose->region, &area) == GDK_OVERLAP_RECTANGLE_OUT)
1368         continue;
1369
1370       gtk_icon_view_paint_item (icon_view, cr, item, &expose->area,
1371                                 icon_view->priv->bin_window,
1372                                 item->x, item->y, TRUE);
1373
1374       if (dest_index == item->index)
1375         dest_item = item;
1376     }
1377
1378   if (dest_item)
1379     {
1380       switch (dest_pos)
1381         {
1382         case GTK_ICON_VIEW_DROP_INTO:
1383           gtk_paint_focus (widget->style,
1384                            icon_view->priv->bin_window,
1385                            GTK_WIDGET_STATE (widget),
1386                            NULL,
1387                            widget,
1388                            "iconview-drop-indicator",
1389                            dest_item->x, dest_item->y,
1390                            dest_item->width, dest_item->height);
1391           break;
1392         case GTK_ICON_VIEW_DROP_ABOVE:
1393           gtk_paint_focus (widget->style,
1394                            icon_view->priv->bin_window,
1395                            GTK_WIDGET_STATE (widget),
1396                            NULL,
1397                            widget,
1398                            "iconview-drop-indicator",
1399                            dest_item->x, dest_item->y - 1,
1400                            dest_item->width, 2);
1401           break;
1402         case GTK_ICON_VIEW_DROP_LEFT:
1403           gtk_paint_focus (widget->style,
1404                            icon_view->priv->bin_window,
1405                            GTK_WIDGET_STATE (widget),
1406                            NULL,
1407                            widget,
1408                            "iconview-drop-indicator",
1409                            dest_item->x - 1, dest_item->y,
1410                            2, dest_item->height);
1411           break;
1412         case GTK_ICON_VIEW_DROP_BELOW:
1413           gtk_paint_focus (widget->style,
1414                            icon_view->priv->bin_window,
1415                            GTK_WIDGET_STATE (widget),
1416                            NULL,
1417                            widget,
1418                            "iconview-drop-indicator",
1419                            dest_item->x, dest_item->y + dest_item->height - 1,
1420                            dest_item->width, 2);
1421           break;
1422         case GTK_ICON_VIEW_DROP_RIGHT:
1423           gtk_paint_focus (widget->style,
1424                            icon_view->priv->bin_window,
1425                            GTK_WIDGET_STATE (widget),
1426                            NULL,
1427                            widget,
1428                            "iconview-drop-indicator",
1429                            dest_item->x + dest_item->width - 1, dest_item->y,
1430                            2, dest_item->height);
1431         case GTK_ICON_VIEW_NO_DROP: ;
1432           break;
1433         }
1434     }
1435
1436   if (icon_view->priv->doing_rubberband)
1437     {
1438       GdkRectangle *rectangles;
1439       gint n_rectangles;
1440
1441       gdk_region_get_rectangles (expose->region,
1442                                  &rectangles,
1443                                  &n_rectangles);
1444
1445       while (n_rectangles--)
1446         gtk_icon_view_paint_rubberband (icon_view, cr, &rectangles[n_rectangles]);
1447
1448       g_free (rectangles);
1449     }
1450
1451   cairo_destroy (cr);
1452
1453   (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->expose_event) (widget, expose);
1454
1455   return TRUE;
1456 }
1457
1458 static gboolean
1459 rubberband_scroll_timeout (gpointer data)
1460 {
1461   GtkIconView *icon_view;
1462   gdouble value;
1463
1464   GDK_THREADS_ENTER ();
1465
1466   icon_view = data;
1467
1468   value = MIN (icon_view->priv->vadjustment->value +
1469                icon_view->priv->scroll_value_diff,
1470                icon_view->priv->vadjustment->upper -
1471                icon_view->priv->vadjustment->page_size);
1472
1473   gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
1474
1475   gtk_icon_view_update_rubberband (icon_view);
1476
1477   GDK_THREADS_LEAVE ();
1478
1479   return TRUE;
1480 }
1481
1482 static gboolean
1483 gtk_icon_view_motion (GtkWidget      *widget,
1484                       GdkEventMotion *event)
1485 {
1486   GtkIconView *icon_view;
1487   gint abs_y;
1488
1489   icon_view = GTK_ICON_VIEW (widget);
1490
1491   gtk_icon_view_maybe_begin_drag (icon_view, event);
1492
1493   if (icon_view->priv->doing_rubberband)
1494     {
1495       gtk_icon_view_update_rubberband (widget);
1496
1497       abs_y = event->y - icon_view->priv->height *
1498         (icon_view->priv->vadjustment->value /
1499          (icon_view->priv->vadjustment->upper -
1500           icon_view->priv->vadjustment->lower));
1501
1502       if (abs_y < 0 || abs_y > widget->allocation.height)
1503         {
1504           if (abs_y < 0)
1505             icon_view->priv->scroll_value_diff = abs_y;
1506           else
1507             icon_view->priv->scroll_value_diff = abs_y - widget->allocation.height;
1508
1509           icon_view->priv->event_last_x = event->x;
1510           icon_view->priv->event_last_y = event->y;
1511
1512           if (icon_view->priv->scroll_timeout_id == 0)
1513             icon_view->priv->scroll_timeout_id = g_timeout_add (30, rubberband_scroll_timeout,
1514                                                                 icon_view);
1515         }
1516       else
1517         remove_scroll_timeout (icon_view);
1518     }
1519
1520   return TRUE;
1521 }
1522
1523 static void
1524 gtk_icon_view_remove (GtkContainer *container,
1525                       GtkWidget    *widget)
1526 {
1527   GtkIconView *icon_view;
1528   GtkIconViewChild *child = NULL;
1529   GList *tmp_list;
1530
1531   icon_view = GTK_ICON_VIEW (container);
1532
1533   tmp_list = icon_view->priv->children;
1534   while (tmp_list)
1535     {
1536       child = tmp_list->data;
1537       if (child->widget == widget)
1538         {
1539           gtk_widget_unparent (widget);
1540
1541           icon_view->priv->children = g_list_remove_link (icon_view->priv->children, tmp_list);
1542           g_list_free_1 (tmp_list);
1543           g_free (child);
1544           return;
1545         }
1546
1547       tmp_list = tmp_list->next;
1548     }
1549 }
1550
1551 static void
1552 gtk_icon_view_forall (GtkContainer *container,
1553                       gboolean      include_internals,
1554                       GtkCallback   callback,
1555                       gpointer      callback_data)
1556 {
1557   GtkIconView *icon_view;
1558   GtkIconViewChild *child = NULL;
1559   GList *tmp_list;
1560
1561   icon_view = GTK_ICON_VIEW (container);
1562
1563   tmp_list = icon_view->priv->children;
1564   while (tmp_list)
1565     {
1566       child = tmp_list->data;
1567       tmp_list = tmp_list->next;
1568
1569       (* callback) (child->widget, callback_data);
1570     }
1571 }
1572
1573 static void
1574 gtk_icon_view_item_activate_cell (GtkIconView         *icon_view,
1575                                   GtkIconViewItem     *item,
1576                                   GtkIconViewCellInfo *info,
1577                                   GdkEvent            *event)
1578 {
1579   GtkTreePath *path;
1580   gchar *path_string;
1581   GdkRectangle cell_area;
1582   gboolean visible, mode;
1583
1584   gtk_icon_view_set_cell_data (icon_view, item);
1585
1586   g_object_get (info->cell,
1587                 "visible", &visible,
1588                 "mode", &mode,
1589                 NULL);
1590
1591   if (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
1592     {
1593       gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
1594
1595       path = gtk_tree_path_new_from_indices (item->index, -1);
1596       path_string = gtk_tree_path_to_string (path);
1597       gtk_tree_path_free (path);
1598
1599       gtk_cell_renderer_activate (info->cell,
1600                                   event,
1601                                   GTK_WIDGET (icon_view),
1602                                   path_string,
1603                                   &cell_area,
1604                                   &cell_area,
1605                                   0);
1606
1607       g_free (path_string);
1608     }
1609 }
1610
1611 static void
1612 gtk_icon_view_put (GtkIconView     *icon_view,
1613                    GtkWidget       *widget,
1614                    GtkIconViewItem *item,
1615                    gint             cell)
1616 {
1617   GtkIconViewChild *child;
1618
1619   child = g_new (GtkIconViewChild, 1);
1620
1621   child->widget = widget;
1622   child->item = item;
1623   child->cell = cell;
1624
1625   icon_view->priv->children = g_list_append (icon_view->priv->children, child);
1626
1627   if (GTK_WIDGET_REALIZED (icon_view))
1628     gtk_widget_set_parent_window (child->widget, icon_view->priv->bin_window);
1629
1630   gtk_widget_set_parent (widget, GTK_WIDGET (icon_view));
1631 }
1632
1633 static void
1634 gtk_icon_view_remove_widget (GtkCellEditable *editable,
1635                              GtkIconView     *icon_view)
1636 {
1637   GList *l;
1638   GtkIconViewItem *item;
1639
1640   if (icon_view->priv->edited_item == NULL)
1641     return;
1642
1643   item = icon_view->priv->edited_item;
1644   icon_view->priv->edited_item = NULL;
1645   icon_view->priv->editable = NULL;
1646   for (l = icon_view->priv->cell_list; l; l = l->next)
1647     {
1648       GtkIconViewCellInfo *info = l->data;
1649
1650       info->editing = FALSE;
1651     }
1652
1653   if (GTK_WIDGET_HAS_FOCUS (editable))
1654     gtk_widget_grab_focus (GTK_WIDGET (icon_view));
1655
1656   g_signal_handlers_disconnect_by_func (editable,
1657                                         gtk_icon_view_remove_widget,
1658                                         icon_view);
1659
1660   gtk_container_remove (GTK_CONTAINER (icon_view),
1661                         GTK_WIDGET (editable));
1662
1663   gtk_icon_view_queue_draw_item (icon_view, item);
1664 }
1665
1666
1667 static void
1668 gtk_icon_view_start_editing (GtkIconView         *icon_view,
1669                              GtkIconViewItem     *item,
1670                              GtkIconViewCellInfo *info,
1671                              GdkEvent            *event)
1672 {
1673   GtkTreePath *path;
1674   gchar *path_string;
1675   GdkRectangle cell_area;
1676   gboolean visible, mode;
1677   GtkCellEditable *editable;
1678
1679   gtk_icon_view_set_cell_data (icon_view, item);
1680
1681   g_object_get (info->cell,
1682                 "visible", &visible,
1683                 "mode", &mode,
1684                 NULL);
1685   if (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1686     {
1687       gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
1688
1689       path = gtk_tree_path_new_from_indices (item->index, -1);
1690       path_string = gtk_tree_path_to_string (path);
1691       gtk_tree_path_free (path);
1692
1693       editable = gtk_cell_renderer_start_editing (info->cell,
1694                                                   event,
1695                                                   GTK_WIDGET (icon_view),
1696                                                   path_string,
1697                                                   &cell_area,
1698                                                   &cell_area,
1699                                                   0);
1700       g_free (path_string);
1701
1702       /* FIXME ugly special case */
1703       if (GTK_IS_ENTRY (editable) || GTK_IS_COMBO_BOX (editable))
1704         g_object_set (editable, "has-frame", TRUE, NULL);
1705
1706       /* the rest corresponds to tree_view_real_start_editing... */
1707       icon_view->priv->edited_item = item;
1708       icon_view->priv->editable = editable;
1709       info->editing = TRUE;
1710
1711       gtk_icon_view_put (icon_view, GTK_WIDGET (editable), item,
1712                          info->position);
1713       gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (editable),
1714                                        (GdkEvent *)event);
1715       gtk_widget_grab_focus (GTK_WIDGET (editable));
1716       g_signal_connect (editable, "remove_widget",
1717                         G_CALLBACK (gtk_icon_view_remove_widget),
1718                         icon_view);
1719
1720     }
1721 }
1722
1723 static void
1724 gtk_icon_view_stop_editing (GtkIconView *icon_view,
1725                             gboolean     cancel_editing)
1726 {
1727   GtkCellRenderer *cell = NULL;
1728   GtkIconViewItem *item;
1729   GList *l;
1730
1731   if (icon_view->priv->edited_item == NULL)
1732     return;
1733
1734   /*
1735    * This is very evil. We need to do this, because
1736    * gtk_cell_editable_editing_done may trigger gtk_icon_view_row_changed
1737    * later on. If gtk_icon_view_row_changed notices
1738    * icon_view->priv->edited_item != NULL, it'll call
1739    * gtk_icon_view_stop_editing again. Bad things will happen then.
1740    *
1741    * Please read that again if you intend to modify anything here.
1742    */
1743
1744   item = icon_view->priv->edited_item;
1745   icon_view->priv->edited_item = NULL;
1746
1747   for (l = icon_view->priv->cell_list; l; l = l->next)
1748     {
1749       GtkIconViewCellInfo *info = l->data;
1750
1751       if (info->editing)
1752         {
1753           cell = info->cell;
1754           break;
1755         }
1756     }
1757
1758   if (cell == NULL)
1759     return;
1760
1761   gtk_cell_renderer_stop_editing (cell, cancel_editing);
1762   if (!cancel_editing)
1763     gtk_cell_editable_editing_done (icon_view->priv->editable);
1764
1765   icon_view->priv->edited_item = item;
1766
1767   gtk_cell_editable_remove_widget (icon_view->priv->editable);
1768 }
1769
1770 /**
1771  * gtk_icon_view_set_cursor:
1772  * @icon_view: A #GtkIconView
1773  * @path: A #GtkTreePath
1774  * @cell: One of the cell renderers of @icon_view, or %NULL
1775  * @start_editing: %TRUE if the specified cell should start being edited.
1776  *
1777  * Sets the current keyboard focus to be at @path, and selects it.  This is
1778  * useful when you want to focus the user's attention on a particular item.
1779  * If @cell is not %NULL, then focus is given to the cell specified by
1780  * it. Additionally, if @start_editing is %TRUE, then editing should be
1781  * started in the specified cell.
1782  *
1783  * This function is often followed by <literal>gtk_widget_grab_focus
1784  * (icon_view)</literal> in order to give keyboard focus to the widget.
1785  * Please note that editing can only happen when the widget is realized.
1786  *
1787  * Since: 2.8
1788  **/
1789 void
1790 gtk_icon_view_set_cursor (GtkIconView     *icon_view,
1791                           GtkTreePath     *path,
1792                           GtkCellRenderer *cell,
1793                           gboolean         start_editing)
1794 {
1795   GtkIconViewItem *item = NULL;
1796   GtkIconViewCellInfo *info =  NULL;
1797   GList *l;
1798   gint i, cell_pos;
1799
1800   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
1801   g_return_if_fail (path != NULL);
1802   g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
1803
1804   gtk_icon_view_stop_editing (icon_view, TRUE);
1805
1806   if (gtk_tree_path_get_depth (path) == 1)
1807     item = g_list_nth_data (icon_view->priv->items,
1808                             gtk_tree_path_get_indices(path)[0]);
1809
1810   if (!item)
1811     return;
1812
1813   cell_pos = -1;
1814   for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
1815     {
1816       info = l->data;
1817
1818       if (info->cell == cell)
1819         {
1820           cell_pos = i;
1821           break;
1822         }
1823
1824       info = NULL;
1825     }
1826
1827   g_return_if_fail (cell == NULL || info != NULL);
1828
1829   gtk_icon_view_set_cursor_item (icon_view, item, cell_pos);
1830   gtk_icon_view_scroll_to_path (icon_view, path, FALSE, 0.0, 0.0);
1831
1832   if (info && start_editing)
1833     gtk_icon_view_start_editing (icon_view, item, info, NULL);
1834 }
1835
1836 /**
1837  * gtk_icon_view_get_cursor:
1838  * @icon_view: A #GtkIconView
1839  * @path: Return location for the current cursor path, or %NULL
1840  * @cell: Return location the current focus cell, or %NULL
1841  *
1842  * Fills in @path and @cell with the current cursor path and cell.
1843  * If the cursor isn't currently set, then *@path will be %NULL.
1844  * If no cell currently has focus, then *@cell will be %NULL.
1845  *
1846  * The returned #GtkTreePath must be freed with gtk_tree_path_free().
1847  *
1848  * Return value: %TRUE if the cursor is set.
1849  *
1850  * Since: 2.8
1851  **/
1852 gboolean
1853 gtk_icon_view_get_cursor (GtkIconView      *icon_view,
1854                           GtkTreePath     **path,
1855                           GtkCellRenderer **cell)
1856 {
1857   GtkIconViewItem *item;
1858   GtkIconViewCellInfo *info;
1859
1860   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
1861
1862   item = icon_view->priv->cursor_item;
1863   if (icon_view->priv->cursor_cell < 0)
1864     info = NULL;
1865   else
1866     info = g_list_nth_data (icon_view->priv->cell_list,
1867                             icon_view->priv->cursor_cell);
1868
1869   if (path != NULL)
1870     {
1871       if (item != NULL)
1872         *path = gtk_tree_path_new_from_indices (item->index, -1);
1873       else
1874         *path = NULL;
1875     }
1876
1877   if (cell != NULL)
1878     {
1879       if (info != NULL)
1880         *cell = info->cell;
1881       else
1882         *cell = NULL;
1883     }
1884
1885   return (item != NULL);
1886 }
1887
1888 static gboolean
1889 gtk_icon_view_button_press (GtkWidget      *widget,
1890                             GdkEventButton *event)
1891 {
1892   GtkIconView *icon_view;
1893   GtkIconViewItem *item;
1894   GtkIconViewCellInfo *info = NULL;
1895   gboolean dirty = FALSE;
1896   GtkCellRendererMode mode;
1897   gint cursor_cell;
1898
1899   icon_view = GTK_ICON_VIEW (widget);
1900
1901   if (event->window != icon_view->priv->bin_window)
1902     return FALSE;
1903
1904   if (!GTK_WIDGET_HAS_FOCUS (widget))
1905     gtk_widget_grab_focus (widget);
1906
1907   if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
1908     {
1909       item = gtk_icon_view_get_item_at_coords (icon_view,
1910                                                event->x, event->y,
1911                                                TRUE,
1912                                                &info);
1913       if (item != NULL)
1914         {
1915           g_object_get (info->cell, "mode", &mode, NULL);
1916
1917           if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE ||
1918               mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1919             cursor_cell = g_list_index (icon_view->priv->cell_list, info);
1920           else
1921             cursor_cell = -1;
1922
1923           gtk_icon_view_scroll_to_item (icon_view, item);
1924
1925           if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
1926             {
1927               gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
1928             }
1929           else if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
1930                    (event->state & GDK_SHIFT_MASK))
1931             {
1932               gtk_icon_view_unselect_all_internal (icon_view);
1933
1934               gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
1935               if (!icon_view->priv->anchor_item)
1936                 icon_view->priv->anchor_item = item;
1937               else
1938                 gtk_icon_view_select_all_between (icon_view,
1939                                                   icon_view->priv->anchor_item,
1940                                                   item);
1941               dirty = TRUE;
1942             }
1943           else
1944             {
1945               if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE ||
1946                   ((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) &&
1947                   (event->state & GDK_CONTROL_MASK))
1948                 {
1949                   item->selected = !item->selected;
1950                   gtk_icon_view_queue_draw_item (icon_view, item);
1951                   dirty = TRUE;
1952                 }
1953               else
1954                 {
1955                   if (!item->selected)
1956                     {
1957                       gtk_icon_view_unselect_all_internal (icon_view);
1958
1959                       item->selected = TRUE;
1960                       gtk_icon_view_queue_draw_item (icon_view, item);
1961                       dirty = TRUE;
1962                     }
1963                 }
1964               gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell);
1965               icon_view->priv->anchor_item = item;
1966             }
1967
1968           /* Save press to possibly begin a drag */
1969           if (icon_view->priv->pressed_button < 0)
1970             {
1971               icon_view->priv->pressed_button = event->button;
1972               icon_view->priv->press_start_x = event->x;
1973               icon_view->priv->press_start_y = event->y;
1974             }
1975
1976           if (!icon_view->priv->last_single_clicked)
1977             icon_view->priv->last_single_clicked = item;
1978
1979           /* cancel the current editing, if it exists */
1980           gtk_icon_view_stop_editing (icon_view, TRUE);
1981
1982           if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
1983             gtk_icon_view_item_activate_cell (icon_view, item, info,
1984                                               (GdkEvent *)event);
1985           else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1986             gtk_icon_view_start_editing (icon_view, item, info,
1987                                          (GdkEvent *)event);
1988         }
1989       else
1990         {
1991           if (icon_view->priv->selection_mode != GTK_SELECTION_BROWSE &&
1992               !(event->state & GDK_CONTROL_MASK))
1993             {
1994               dirty = gtk_icon_view_unselect_all_internal (icon_view);
1995             }
1996
1997           if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
1998             gtk_icon_view_start_rubberbanding (icon_view, event->x, event->y);
1999         }
2000
2001     }
2002
2003   if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
2004     {
2005       item = gtk_icon_view_get_item_at_coords (icon_view,
2006                                                event->x, event->y,
2007                                                TRUE,
2008                                                NULL);
2009
2010       if (item && item == icon_view->priv->last_single_clicked)
2011         {
2012           GtkTreePath *path;
2013
2014           path = gtk_tree_path_new_from_indices (item->index, -1);
2015           gtk_icon_view_item_activated (icon_view, path);
2016           gtk_tree_path_free (path);
2017         }
2018
2019       icon_view->priv->last_single_clicked = NULL;
2020       icon_view->priv->pressed_button = -1;
2021     }
2022
2023   if (dirty)
2024     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2025
2026   return event->button == 1;
2027 }
2028
2029 static gboolean
2030 gtk_icon_view_button_release (GtkWidget      *widget,
2031                               GdkEventButton *event)
2032 {
2033   GtkIconView *icon_view;
2034
2035   icon_view = GTK_ICON_VIEW (widget);
2036
2037   if (icon_view->priv->pressed_button == event->button)
2038     icon_view->priv->pressed_button = -1;
2039
2040   gtk_icon_view_stop_rubberbanding (icon_view);
2041
2042   remove_scroll_timeout (icon_view);
2043
2044   return TRUE;
2045 }
2046
2047 static void
2048 gtk_icon_view_update_rubberband (gpointer data)
2049 {
2050   GtkIconView *icon_view;
2051   gint x, y;
2052   GdkRectangle old_area;
2053   GdkRectangle new_area;
2054   GdkRectangle common;
2055   GdkRegion *invalid_region;
2056
2057   icon_view = GTK_ICON_VIEW (data);
2058
2059   gdk_window_get_pointer (icon_view->priv->bin_window, &x, &y, NULL);
2060
2061   x = MAX (x, 0);
2062   y = MAX (y, 0);
2063
2064   old_area.x = MIN (icon_view->priv->rubberband_x1,
2065                     icon_view->priv->rubberband_x2);
2066   old_area.y = MIN (icon_view->priv->rubberband_y1,
2067                     icon_view->priv->rubberband_y2);
2068   old_area.width = ABS (icon_view->priv->rubberband_x2 -
2069                         icon_view->priv->rubberband_x1) + 1;
2070   old_area.height = ABS (icon_view->priv->rubberband_y2 -
2071                          icon_view->priv->rubberband_y1) + 1;
2072
2073   new_area.x = MIN (icon_view->priv->rubberband_x1, x);
2074   new_area.y = MIN (icon_view->priv->rubberband_y1, y);
2075   new_area.width = ABS (x - icon_view->priv->rubberband_x1) + 1;
2076   new_area.height = ABS (y - icon_view->priv->rubberband_y1) + 1;
2077
2078   invalid_region = gdk_region_rectangle (&old_area);
2079   gdk_region_union_with_rect (invalid_region, &new_area);
2080
2081   gdk_rectangle_intersect (&old_area, &new_area, &common);
2082   if (common.width > 2 && common.height > 2)
2083     {
2084       GdkRegion *common_region;
2085
2086       /* make sure the border is invalidated */
2087       common.x += 1;
2088       common.y += 1;
2089       common.width -= 2;
2090       common.height -= 2;
2091
2092       common_region = gdk_region_rectangle (&common);
2093
2094       gdk_region_subtract (invalid_region, common_region);
2095       gdk_region_destroy (common_region);
2096     }
2097
2098   gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE);
2099
2100   gdk_region_destroy (invalid_region);
2101
2102   icon_view->priv->rubberband_x2 = x;
2103   icon_view->priv->rubberband_y2 = y;
2104
2105   gtk_icon_view_update_rubberband_selection (icon_view);
2106 }
2107
2108 static void
2109 gtk_icon_view_start_rubberbanding (GtkIconView  *icon_view,
2110                                    gint          x,
2111                                    gint          y)
2112 {
2113   GList *items;
2114
2115   g_assert (!icon_view->priv->doing_rubberband);
2116
2117   for (items = icon_view->priv->items; items; items = items->next)
2118     {
2119       GtkIconViewItem *item = items->data;
2120
2121       item->selected_before_rubberbanding = item->selected;
2122     }
2123
2124   icon_view->priv->rubberband_x1 = x;
2125   icon_view->priv->rubberband_y1 = y;
2126   icon_view->priv->rubberband_x2 = x;
2127   icon_view->priv->rubberband_y2 = y;
2128
2129   icon_view->priv->doing_rubberband = TRUE;
2130
2131   gtk_grab_add (GTK_WIDGET (icon_view));
2132 }
2133
2134 static void
2135 gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view)
2136 {
2137   if (!icon_view->priv->doing_rubberband)
2138     return;
2139
2140   icon_view->priv->doing_rubberband = FALSE;
2141
2142   gtk_grab_remove (GTK_WIDGET (icon_view));
2143
2144   gtk_widget_queue_draw (GTK_WIDGET (icon_view));
2145 }
2146
2147 static void
2148 gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view)
2149 {
2150   GList *items;
2151   gint x, y, width, height;
2152   gboolean dirty = FALSE;
2153
2154   x = MIN (icon_view->priv->rubberband_x1,
2155            icon_view->priv->rubberband_x2);
2156   y = MIN (icon_view->priv->rubberband_y1,
2157            icon_view->priv->rubberband_y2);
2158   width = ABS (icon_view->priv->rubberband_x1 -
2159                icon_view->priv->rubberband_x2);
2160   height = ABS (icon_view->priv->rubberband_y1 -
2161                 icon_view->priv->rubberband_y2);
2162
2163   for (items = icon_view->priv->items; items; items = items->next)
2164     {
2165       GtkIconViewItem *item = items->data;
2166       gboolean is_in;
2167       gboolean selected;
2168
2169       is_in = gtk_icon_view_item_hit_test (icon_view, item,
2170                                            x, y, width, height);
2171
2172       selected = is_in ^ item->selected_before_rubberbanding;
2173
2174       if (item->selected != selected)
2175         {
2176           item->selected = selected;
2177           dirty = TRUE;
2178           gtk_icon_view_queue_draw_item (icon_view, item);
2179         }
2180     }
2181
2182   if (dirty)
2183     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2184 }
2185
2186 static gboolean
2187 gtk_icon_view_item_hit_test (GtkIconView      *icon_view,
2188                              GtkIconViewItem  *item,
2189                              gint              x,
2190                              gint              y,
2191                              gint              width,
2192                              gint              height)
2193 {
2194   GList *l;
2195   GdkRectangle box;
2196
2197   for (l = icon_view->priv->cell_list; l; l = l->next)
2198     {
2199       GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2200
2201       if (!info->cell->visible)
2202         continue;
2203
2204       gtk_icon_view_get_cell_box (icon_view, item, info, &box);
2205
2206       if (MIN (x + width, box.x + box.width) - MAX (x, box.x) > 0 &&
2207         MIN (y + height, box.y + box.height) - MAX (y, box.y) > 0)
2208         return TRUE;
2209     }
2210
2211   return FALSE;
2212 }
2213
2214 static gboolean
2215 gtk_icon_view_unselect_all_internal (GtkIconView  *icon_view)
2216 {
2217   gboolean dirty = FALSE;
2218   GList *items;
2219
2220   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
2221     return FALSE;
2222
2223   for (items = icon_view->priv->items; items; items = items->next)
2224     {
2225       GtkIconViewItem *item = items->data;
2226
2227       if (item->selected)
2228         {
2229           item->selected = FALSE;
2230           dirty = TRUE;
2231           gtk_icon_view_queue_draw_item (icon_view, item);
2232         }
2233     }
2234
2235   return dirty;
2236 }
2237
2238
2239 /* GtkIconView signals */
2240 static void
2241 gtk_icon_view_set_adjustments (GtkIconView   *icon_view,
2242                                GtkAdjustment *hadj,
2243                                GtkAdjustment *vadj)
2244 {
2245   gboolean need_adjust = FALSE;
2246
2247   if (hadj)
2248     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
2249   else
2250     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
2251   if (vadj)
2252     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
2253   else
2254     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
2255
2256   if (icon_view->priv->hadjustment && (icon_view->priv->hadjustment != hadj))
2257     {
2258       g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA,
2259                                            0, 0, NULL, NULL, icon_view);
2260       g_object_unref (icon_view->priv->hadjustment);
2261     }
2262
2263   if (icon_view->priv->vadjustment && (icon_view->priv->vadjustment != vadj))
2264     {
2265       g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA,
2266                                             0, 0, NULL, NULL, icon_view);
2267       g_object_unref (icon_view->priv->vadjustment);
2268     }
2269
2270   if (icon_view->priv->hadjustment != hadj)
2271     {
2272       icon_view->priv->hadjustment = hadj;
2273       g_object_ref_sink (icon_view->priv->hadjustment);
2274
2275       g_signal_connect (icon_view->priv->hadjustment, "value_changed",
2276                         G_CALLBACK (gtk_icon_view_adjustment_changed),
2277                         icon_view);
2278       need_adjust = TRUE;
2279     }
2280
2281   if (icon_view->priv->vadjustment != vadj)
2282     {
2283       icon_view->priv->vadjustment = vadj;
2284       g_object_ref_sink (icon_view->priv->vadjustment);
2285
2286       g_signal_connect (icon_view->priv->vadjustment, "value_changed",
2287                         G_CALLBACK (gtk_icon_view_adjustment_changed),
2288                         icon_view);
2289       need_adjust = TRUE;
2290     }
2291
2292   if (need_adjust)
2293     gtk_icon_view_adjustment_changed (NULL, icon_view);
2294 }
2295
2296 static void
2297 gtk_icon_view_real_select_all (GtkIconView *icon_view)
2298 {
2299   gtk_icon_view_select_all (icon_view);
2300 }
2301
2302 static void
2303 gtk_icon_view_real_unselect_all (GtkIconView *icon_view)
2304 {
2305   gtk_icon_view_unselect_all (icon_view);
2306 }
2307
2308 static void
2309 gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view)
2310 {
2311   gtk_icon_view_unselect_all (icon_view);
2312
2313   if (icon_view->priv->cursor_item != NULL)
2314     gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
2315 }
2316
2317 static gboolean
2318 gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view)
2319 {
2320   GtkTreePath *path;
2321   GtkCellRendererMode mode;
2322   GtkIconViewCellInfo *info = NULL;
2323
2324   if (!icon_view->priv->cursor_item)
2325     return FALSE;
2326
2327   info = g_list_nth_data (icon_view->priv->cell_list,
2328                           icon_view->priv->cursor_cell);
2329
2330   if (info)
2331     {
2332       g_object_get (info->cell, "mode", &mode, NULL);
2333
2334       if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
2335         {
2336           gtk_icon_view_item_activate_cell (icon_view,
2337                                             icon_view->priv->cursor_item,
2338                                             info, NULL);
2339           return TRUE;
2340         }
2341       else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
2342         {
2343           gtk_icon_view_start_editing (icon_view,
2344                                        icon_view->priv->cursor_item,
2345                                        info, NULL);
2346           return TRUE;
2347         }
2348     }
2349
2350   path = gtk_tree_path_new_from_indices (icon_view->priv->cursor_item->index, -1);
2351   gtk_icon_view_item_activated (icon_view, path);
2352   gtk_tree_path_free (path);
2353
2354   return TRUE;
2355 }
2356
2357 static void
2358 gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view)
2359 {
2360   if (!icon_view->priv->cursor_item)
2361     return;
2362
2363   switch (icon_view->priv->selection_mode)
2364     {
2365     case GTK_SELECTION_NONE:
2366       break;
2367     case GTK_SELECTION_BROWSE:
2368       gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
2369       break;
2370     case GTK_SELECTION_SINGLE:
2371       if (icon_view->priv->cursor_item->selected)
2372         gtk_icon_view_unselect_item (icon_view, icon_view->priv->cursor_item);
2373       else
2374         gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
2375       break;
2376     case GTK_SELECTION_MULTIPLE:
2377       icon_view->priv->cursor_item->selected = !icon_view->priv->cursor_item->selected;
2378       g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2379
2380       gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
2381       break;
2382     }
2383 }
2384
2385 /* Internal functions */
2386 static void
2387 gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment,
2388                                   GtkIconView   *icon_view)
2389 {
2390   if (GTK_WIDGET_REALIZED (icon_view))
2391     {
2392       gdk_window_move (icon_view->priv->bin_window,
2393                        - icon_view->priv->hadjustment->value,
2394                        - icon_view->priv->vadjustment->value);
2395
2396       if (icon_view->priv->doing_rubberband)
2397         gtk_icon_view_update_rubberband (GTK_WIDGET (icon_view));
2398
2399       gdk_window_process_updates (icon_view->priv->bin_window, TRUE);
2400     }
2401 }
2402
2403 static GList *
2404 gtk_icon_view_layout_single_row (GtkIconView *icon_view,
2405                                  GList       *first_item,
2406                                  gint         item_width,
2407                                  gint         row,
2408                                  gint        *y,
2409                                  gint        *maximum_width)
2410 {
2411   gint focus_width;
2412   gint x, current_width;
2413   GList *items, *last_item;
2414   gint col;
2415   gint colspan;
2416   gint *max_height;
2417   gint i;
2418   gboolean rtl;
2419
2420   rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
2421   max_height = g_new0 (gint, icon_view->priv->n_cells);
2422
2423   x = 0;
2424   col = 0;
2425   items = first_item;
2426   current_width = 0;
2427
2428   gtk_widget_style_get (GTK_WIDGET (icon_view),
2429                         "focus-line-width", &focus_width,
2430                         NULL);
2431
2432   x += icon_view->priv->margin + focus_width;
2433   current_width += 2 * (icon_view->priv->margin + focus_width);
2434
2435   items = first_item;
2436   while (items)
2437     {
2438       GtkIconViewItem *item = items->data;
2439
2440       gtk_icon_view_calculate_item_size (icon_view, item);
2441       colspan = 1 + (item->width - 1) / (item_width + icon_view->priv->column_spacing);
2442
2443       item->width = colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing;
2444
2445       current_width += item->width;
2446
2447       if (items != first_item)
2448         {
2449           if ((icon_view->priv->columns <= 0 && current_width > GTK_WIDGET (icon_view)->allocation.width) ||
2450               (icon_view->priv->columns > 0 && col >= icon_view->priv->columns))
2451             break;
2452         }
2453
2454       current_width += icon_view->priv->column_spacing + 2 * focus_width;
2455
2456       item->y = *y + focus_width;
2457       item->x = rtl ? GTK_WIDGET (icon_view)->allocation.width - item->width - x : x;
2458
2459       x = current_width - (icon_view->priv->margin + focus_width);
2460
2461       for (i = 0; i < icon_view->priv->n_cells; i++)
2462         max_height[i] = MAX (max_height[i], item->box[i].height);
2463
2464       if (current_width > *maximum_width)
2465         *maximum_width = current_width;
2466
2467       item->row = row;
2468       item->col = col;
2469
2470       col += colspan;
2471       items = items->next;
2472     }
2473
2474   last_item = items;
2475
2476   /* Now go through the row again and align the icons */
2477   for (items = first_item; items != last_item; items = items->next)
2478     {
2479       GtkIconViewItem *item = items->data;
2480
2481       gtk_icon_view_calculate_item_size2 (icon_view, item, max_height);
2482
2483       /* We may want to readjust the new y coordinate. */
2484       if (item->y + item->height + focus_width + icon_view->priv->row_spacing > *y)
2485         *y = item->y + item->height + focus_width + icon_view->priv->row_spacing;
2486
2487       if (rtl)
2488         item->col = col - 1 - item->col;
2489     }
2490
2491   g_free (max_height);
2492
2493   return last_item;
2494 }
2495
2496 static void
2497 gtk_icon_view_set_adjustment_upper (GtkAdjustment *adj,
2498                                     gdouble        upper)
2499 {
2500   if (upper != adj->upper)
2501     {
2502       gdouble min = MAX (0.0, upper - adj->page_size);
2503       gboolean value_changed = FALSE;
2504
2505       adj->upper = upper;
2506
2507       if (adj->value > min)
2508         {
2509           adj->value = min;
2510           value_changed = TRUE;
2511         }
2512
2513       gtk_adjustment_changed (adj);
2514
2515       if (value_changed)
2516         gtk_adjustment_value_changed (adj);
2517     }
2518 }
2519
2520 static void
2521 gtk_icon_view_layout (GtkIconView *icon_view)
2522 {
2523   gint y = 0, maximum_width = 0;
2524   GList *icons;
2525   GtkWidget *widget;
2526   gint row;
2527   gint item_width;
2528
2529   if (icon_view->priv->layout_idle_id != 0)
2530     {
2531       g_source_remove (icon_view->priv->layout_idle_id);
2532       icon_view->priv->layout_idle_id = 0;
2533     }
2534
2535   if (icon_view->priv->model == NULL)
2536     return;
2537
2538   widget = GTK_WIDGET (icon_view);
2539
2540   item_width = icon_view->priv->item_width;
2541
2542   if (item_width < 0)
2543     {
2544       for (icons = icon_view->priv->items; icons; icons = icons->next)
2545         {
2546           GtkIconViewItem *item = icons->data;
2547           gtk_icon_view_calculate_item_size (icon_view, item);
2548           item_width = MAX (item_width, item->width);
2549         }
2550     }
2551
2552   icons = icon_view->priv->items;
2553   y += icon_view->priv->margin;
2554   row = 0;
2555
2556   do
2557     {
2558       icons = gtk_icon_view_layout_single_row (icon_view, icons,
2559                                                item_width, row,
2560                                                &y, &maximum_width);
2561       row++;
2562     }
2563   while (icons != NULL);
2564
2565   if (maximum_width != icon_view->priv->width)
2566     icon_view->priv->width = maximum_width;
2567
2568   y += icon_view->priv->margin;
2569
2570   if (y != icon_view->priv->height)
2571     icon_view->priv->height = y;
2572
2573   gtk_icon_view_set_adjustment_upper (icon_view->priv->hadjustment,
2574                                       icon_view->priv->width);
2575   gtk_icon_view_set_adjustment_upper (icon_view->priv->vadjustment,
2576                                       icon_view->priv->height);
2577
2578   if (GTK_WIDGET_REALIZED (icon_view))
2579     gdk_window_resize (icon_view->priv->bin_window,
2580                        MAX (icon_view->priv->width, widget->allocation.width),
2581                        MAX (icon_view->priv->height, widget->allocation.height));
2582
2583   if (icon_view->priv->scroll_to_path)
2584     {
2585       GtkTreePath *path;
2586
2587       path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path);
2588       gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
2589       icon_view->priv->scroll_to_path = NULL;
2590
2591       gtk_icon_view_scroll_to_path (icon_view, path,
2592                                     icon_view->priv->scroll_to_use_align,
2593                                     icon_view->priv->scroll_to_row_align,
2594                                     icon_view->priv->scroll_to_col_align);
2595       gtk_tree_path_free (path);
2596     }
2597
2598   gtk_widget_queue_draw (GTK_WIDGET (icon_view));
2599 }
2600
2601 static void
2602 gtk_icon_view_get_cell_area (GtkIconView         *icon_view,
2603                              GtkIconViewItem     *item,
2604                              GtkIconViewCellInfo *info,
2605                              GdkRectangle        *cell_area)
2606 {
2607   if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2608     {
2609       cell_area->x = item->box[info->position].x - item->before[info->position];
2610       cell_area->y = item->y;
2611       cell_area->width = item->box[info->position].width +
2612         item->before[info->position] + item->after[info->position];
2613       cell_area->height = item->height;
2614     }
2615   else
2616     {
2617       cell_area->x = item->x;
2618       cell_area->y = item->box[info->position].y - item->before[info->position];
2619       cell_area->width = item->width;
2620       cell_area->height = item->box[info->position].height +
2621         item->before[info->position] + item->after[info->position];
2622     }
2623 }
2624
2625 static void
2626 gtk_icon_view_get_cell_box (GtkIconView         *icon_view,
2627                             GtkIconViewItem     *item,
2628                             GtkIconViewCellInfo *info,
2629                             GdkRectangle        *box)
2630 {
2631   *box = item->box[info->position];
2632 }
2633
2634 /* try to guess a reasonable wrap width for an implicit text cell renderer
2635  */
2636 static void
2637 adjust_wrap_width (GtkIconView     *icon_view,
2638                    GtkIconViewItem *item)
2639 {
2640   GtkIconViewCellInfo *text_info;
2641   GtkIconViewCellInfo *pixbuf_info;
2642   gint pixbuf_width, wrap_width;
2643
2644   if (icon_view->priv->text_cell != -1 &&
2645       icon_view->priv->pixbuf_cell != -1)
2646     {
2647       text_info = g_list_nth_data (icon_view->priv->cell_list,
2648                                    icon_view->priv->text_cell);
2649       pixbuf_info = g_list_nth_data (icon_view->priv->cell_list,
2650                                      icon_view->priv->pixbuf_cell);
2651
2652       gtk_cell_renderer_get_size (pixbuf_info->cell,
2653                                   GTK_WIDGET (icon_view),
2654                                   NULL, NULL, NULL,
2655                                   &pixbuf_width,
2656                                   NULL);
2657
2658       if (item->width == -1)
2659         wrap_width = MAX (2 * pixbuf_width, 50);
2660       else if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL)
2661         wrap_width = item->width;
2662       else
2663         wrap_width = item->width - pixbuf_width - icon_view->priv->spacing;
2664
2665       g_object_set (text_info->cell, "wrap-width", wrap_width, NULL);
2666     }
2667 }
2668
2669 static void
2670 gtk_icon_view_calculate_item_size (GtkIconView     *icon_view,
2671                                    GtkIconViewItem *item)
2672 {
2673   gint spacing;
2674   GList *l;
2675
2676   if (item->width != -1 && item->height != -1)
2677     return;
2678
2679   if (item->n_cells != icon_view->priv->n_cells)
2680     {
2681       g_free (item->before);
2682       g_free (item->after);
2683       g_free (item->box);
2684
2685       item->before = g_new0 (gint, icon_view->priv->n_cells);
2686       item->after = g_new0 (gint, icon_view->priv->n_cells);
2687       item->box = g_new0 (GdkRectangle, icon_view->priv->n_cells);
2688
2689       item->n_cells = icon_view->priv->n_cells;
2690     }
2691
2692   gtk_icon_view_set_cell_data (icon_view, item);
2693
2694   spacing = icon_view->priv->spacing;
2695
2696   item->width = 0;
2697   item->height = 0;
2698   for (l = icon_view->priv->cell_list; l; l = l->next)
2699     {
2700       GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2701
2702       if (!info->cell->visible)
2703         continue;
2704
2705       gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view),
2706                                   NULL, NULL, NULL,
2707                                   &item->box[info->position].width,
2708                                   &item->box[info->position].height);
2709
2710       if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2711         {
2712           item->width += item->box[info->position].width
2713             + (info->position > 0 ? spacing : 0);
2714           item->height = MAX (item->height, item->box[info->position].height);
2715         }
2716       else
2717         {
2718           item->width = MAX (item->width, item->box[info->position].width);
2719           item->height += item->box[info->position].height + (info->position > 0 ? spacing : 0);
2720         }
2721     }
2722 }
2723
2724 static void
2725 gtk_icon_view_calculate_item_size2 (GtkIconView     *icon_view,
2726                                     GtkIconViewItem *item,
2727                                     gint            *max_height)
2728 {
2729   GdkRectangle cell_area;
2730   gint spacing;
2731   GList *l;
2732   gint i, k;
2733   gboolean rtl;
2734
2735   rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
2736
2737   gtk_icon_view_set_cell_data (icon_view, item);
2738
2739   spacing = icon_view->priv->spacing;
2740
2741   item->height = 0;
2742   for (i = 0; i < icon_view->priv->n_cells; i++)
2743     {
2744       if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2745         item->height = MAX (item->height, max_height[i]);
2746       else
2747         item->height += max_height[i] + (i > 0 ? spacing : 0);
2748     }
2749
2750   cell_area.x = item->x;
2751   cell_area.y = item->y;
2752
2753   for (k = 0; k < 2; k++)
2754     for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
2755       {
2756         GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2757
2758         if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
2759           continue;
2760
2761         if (!info->cell->visible)
2762           continue;
2763
2764         if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2765           {
2766             cell_area.width = item->box[info->position].width;
2767             cell_area.height = item->height;
2768           }
2769         else
2770           {
2771             cell_area.width = item->width;
2772             cell_area.height = max_height[i];
2773           }
2774
2775         gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view),
2776                                     &cell_area,
2777                                     &item->box[info->position].x, &item->box[info->position].y,
2778                                     &item->box[info->position].width, &item->box[info->position].height);
2779
2780         item->box[info->position].x += cell_area.x;
2781         item->box[info->position].y += cell_area.y;
2782         if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2783           {
2784             item->before[info->position] = item->box[info->position].x - cell_area.x;
2785             item->after[info->position] = cell_area.width - item->box[info->position].width - item->before[info->position];
2786             cell_area.x += cell_area.width + spacing;
2787           }
2788         else
2789           {
2790             if (item->box[info->position].width > item->width)
2791               {
2792                 item->width = item->box[info->position].width;
2793                 cell_area.width = item->width;
2794               }
2795             item->before[info->position] = item->box[info->position].y - cell_area.y;
2796             item->after[info->position] = cell_area.height - item->box[info->position].height - item->before[info->position];
2797             cell_area.y += cell_area.height + spacing;
2798           }
2799       }
2800
2801   if (rtl && icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2802     {
2803       for (i = 0; i < icon_view->priv->n_cells; i++)
2804         {
2805           item->box[i].x = item->x + item->width -
2806             (item->box[i].x + item->box[i].width - item->x);
2807         }
2808     }
2809 }
2810
2811 static void
2812 gtk_icon_view_invalidate_sizes (GtkIconView *icon_view)
2813 {
2814   g_list_foreach (icon_view->priv->items,
2815                   (GFunc)gtk_icon_view_item_invalidate_size, NULL);
2816 }
2817
2818 static void
2819 gtk_icon_view_item_invalidate_size (GtkIconViewItem *item)
2820 {
2821   item->width = -1;
2822   item->height = -1;
2823 }
2824
2825 static void
2826 gtk_icon_view_paint_item (GtkIconView     *icon_view,
2827                           cairo_t         *cr,
2828                           GtkIconViewItem *item,
2829                           GdkRectangle    *area,
2830                           GdkDrawable     *drawable,
2831                           gint             x,
2832                           gint             y,
2833                           gboolean         draw_focus)
2834 {
2835   gint focus_width, focus_pad;
2836   gint padding;
2837   GdkRectangle cell_area, box;
2838   GList *l;
2839   gint i;
2840   GtkStateType state;
2841   GtkCellRendererState flags;
2842
2843   if (icon_view->priv->model == NULL)
2844     return;
2845
2846   gtk_icon_view_set_cell_data (icon_view, item);
2847
2848   gtk_widget_style_get (GTK_WIDGET (icon_view),
2849                         "focus-line-width", &focus_width,
2850                         "focus-padding", &focus_pad,
2851                         NULL);
2852
2853   padding = focus_width;
2854
2855   if (item->selected)
2856     {
2857       flags = GTK_CELL_RENDERER_SELECTED;
2858       if (GTK_WIDGET_HAS_FOCUS (icon_view))
2859         state = GTK_STATE_SELECTED;
2860       else
2861         state = GTK_STATE_ACTIVE;
2862     }
2863   else
2864     {
2865       flags = 0;
2866       state = GTK_STATE_NORMAL;
2867     }
2868
2869 #ifdef DEBUG_ICON_VIEW
2870   gdk_draw_rectangle (drawable,
2871                       GTK_WIDGET (icon_view)->style->black_gc,
2872                       FALSE,
2873                       x, y,
2874                       item->width, item->height);
2875 #endif
2876
2877   if (item->selected)
2878     for (l = icon_view->priv->cell_list; l; l = l->next)
2879       {
2880         GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2881
2882         if (!info->cell->visible)
2883           continue;
2884
2885         gtk_icon_view_get_cell_box (icon_view, item, info, &box);
2886
2887         /* FIXME we hardwire background drawing behind text
2888          * cell renderers here
2889          */
2890         if (GTK_IS_CELL_RENDERER_TEXT (info->cell))
2891           {
2892             gdk_cairo_set_source_color (cr, &GTK_WIDGET (icon_view)->style->base[state]);
2893             cairo_rectangle (cr,
2894                              x - item->x + box.x,
2895                              y - item->y + box.y,
2896                              box.width, box.height);
2897             cairo_fill (cr);
2898           }
2899       }
2900
2901   for (l = icon_view->priv->cell_list; l; l = l->next)
2902     {
2903       GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2904
2905       if (!info->cell->visible)
2906         continue;
2907
2908       gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area);
2909
2910 #ifdef DEBUG_ICON_VIEW
2911       gdk_draw_rectangle (drawable,
2912                           GTK_WIDGET (icon_view)->style->black_gc,
2913                           FALSE,
2914                           x - item->x + cell_area.x,
2915                           y - item->y + cell_area.y,
2916                           cell_area.width, cell_area.height);
2917
2918       gtk_icon_view_get_cell_box (icon_view, item, info, &box);
2919
2920       gdk_draw_rectangle (drawable,
2921                           GTK_WIDGET (icon_view)->style->black_gc,
2922                           FALSE,
2923                           x - item->x + box.x,
2924                           y - item->y + box.y,
2925                           box.width, box.height);
2926 #endif
2927
2928       cell_area.x = x - item->x + cell_area.x;
2929       cell_area.y = y - item->y + cell_area.y;
2930
2931       gtk_cell_renderer_render (info->cell,
2932                                 drawable,
2933                                 GTK_WIDGET (icon_view),
2934                                 &cell_area, &cell_area, area, flags);
2935
2936     }
2937
2938   /* FIXME where to draw the focus with generic cell renderers ? */
2939   if (draw_focus &&
2940       GTK_WIDGET_HAS_FOCUS (icon_view) &&
2941       item == icon_view->priv->cursor_item)
2942     for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
2943       {
2944         GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
2945
2946         if (!info->cell->visible)
2947           continue;
2948
2949         if (icon_view->priv->cursor_cell < 0 &&
2950             (info->cell->mode != GTK_CELL_RENDERER_MODE_INERT ||
2951              GTK_IS_CELL_RENDERER_TEXT (info->cell)))
2952           icon_view->priv->cursor_cell = i;
2953
2954         if (i == icon_view->priv->cursor_cell)
2955           {
2956             gtk_icon_view_get_cell_box (icon_view, item, info, &box);
2957
2958             gtk_paint_focus (GTK_WIDGET (icon_view)->style,
2959                              drawable,
2960                              GTK_STATE_NORMAL,
2961                              area,
2962                              GTK_WIDGET (icon_view),
2963                              "icon_view",
2964                              x - item->x + box.x - padding,
2965                              y - item->y + box.y - padding,
2966                              box.width + 2 * padding,
2967                              box.height + 2 * padding);
2968             break;
2969           }
2970       }
2971 }
2972
2973 static void
2974 gtk_icon_view_paint_rubberband (GtkIconView     *icon_view,
2975                                 cairo_t         *cr,
2976                                 GdkRectangle    *area)
2977 {
2978   GdkRectangle rect;
2979   GdkRectangle rubber_rect;
2980   GdkColor *fill_color_gdk;
2981   guchar fill_color_alpha;
2982
2983   rubber_rect.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
2984   rubber_rect.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
2985   rubber_rect.width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2) + 1;
2986   rubber_rect.height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2) + 1;
2987
2988   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
2989     return;
2990
2991   gtk_widget_style_get (GTK_WIDGET (icon_view),
2992                         "selection-box-color", &fill_color_gdk,
2993                         "selection-box-alpha", &fill_color_alpha,
2994                         NULL);
2995
2996   if (!fill_color_gdk)
2997     fill_color_gdk = gdk_color_copy (&GTK_WIDGET (icon_view)->style->base[GTK_STATE_SELECTED]);
2998
2999   cairo_set_source_rgba (cr,
3000                          fill_color_gdk->red / 65535.,
3001                          fill_color_gdk->green / 65535.,
3002                          fill_color_gdk->blue / 65535.,
3003                          fill_color_alpha / 255.);
3004
3005   cairo_save (cr);
3006   gdk_cairo_rectangle (cr, &rect);
3007   cairo_clip (cr);
3008   cairo_paint (cr);
3009
3010   /* Draw the border without alpha */
3011   cairo_set_source_rgb (cr,
3012                         fill_color_gdk->red / 65535.,
3013                         fill_color_gdk->green / 65535.,
3014                         fill_color_gdk->blue / 65535.);
3015   cairo_rectangle (cr,
3016                    rubber_rect.x + 0.5, rubber_rect.y + 0.5,
3017                    rubber_rect.width - 1, rubber_rect.height - 1);
3018   cairo_stroke (cr);
3019   cairo_restore (cr);
3020
3021   gdk_color_free (fill_color_gdk);
3022 }
3023
3024 static void
3025 gtk_icon_view_queue_draw_path (GtkIconView *icon_view,
3026                                GtkTreePath *path)
3027 {
3028   GList *l;
3029   gint index;
3030
3031   index = gtk_tree_path_get_indices (path)[0];
3032
3033   for (l = icon_view->priv->items; l; l = l->next)
3034     {
3035       GtkIconViewItem *item = l->data;
3036
3037       if (item->index == index)
3038         {
3039           gtk_icon_view_queue_draw_item (icon_view, item);
3040           break;
3041         }
3042     }
3043 }
3044
3045 static void
3046 gtk_icon_view_queue_draw_item (GtkIconView     *icon_view,
3047                                GtkIconViewItem *item)
3048 {
3049   gint focus_width;
3050   GdkRectangle rect;
3051
3052   gtk_widget_style_get (GTK_WIDGET (icon_view),
3053                         "focus-line-width", &focus_width,
3054                         NULL);
3055
3056   rect.x = item->x - focus_width;
3057   rect.y = item->y - focus_width;
3058   rect.width = item->width + 2 * focus_width;
3059   rect.height = item->height + 2 * focus_width;
3060
3061   if (icon_view->priv->bin_window)
3062     gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE);
3063 }
3064
3065 static gboolean
3066 layout_callback (gpointer user_data)
3067 {
3068   GtkIconView *icon_view;
3069
3070   GDK_THREADS_ENTER ();
3071
3072   icon_view = GTK_ICON_VIEW (user_data);
3073
3074   icon_view->priv->layout_idle_id = 0;
3075
3076   gtk_icon_view_layout (icon_view);
3077
3078   GDK_THREADS_LEAVE();
3079
3080   return FALSE;
3081 }
3082
3083 static void
3084 gtk_icon_view_queue_layout (GtkIconView *icon_view)
3085 {
3086   if (icon_view->priv->layout_idle_id != 0)
3087     return;
3088
3089   icon_view->priv->layout_idle_id = g_idle_add (layout_callback, icon_view);
3090 }
3091
3092 static void
3093 gtk_icon_view_set_cursor_item (GtkIconView     *icon_view,
3094                                GtkIconViewItem *item,
3095                                gint             cursor_cell)
3096 {
3097   AtkObject *obj;
3098   AtkObject *item_obj;
3099
3100   if (icon_view->priv->cursor_item == item &&
3101       (cursor_cell < 0 || cursor_cell == icon_view->priv->cursor_cell))
3102     return;
3103
3104   if (icon_view->priv->cursor_item != NULL)
3105     gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
3106
3107   icon_view->priv->cursor_item = item;
3108   if (cursor_cell >= 0)
3109     icon_view->priv->cursor_cell = cursor_cell;
3110
3111   gtk_icon_view_queue_draw_item (icon_view, item);
3112
3113   /* Notify that accessible focus object has changed */
3114   obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
3115   item_obj = atk_object_ref_accessible_child (obj, item->index);
3116
3117   if (item_obj != NULL)
3118     {
3119       atk_focus_tracker_notify (item_obj);
3120       g_object_unref (item_obj);
3121     }
3122 }
3123
3124
3125 static GtkIconViewItem *
3126 gtk_icon_view_item_new (void)
3127 {
3128   GtkIconViewItem *item;
3129
3130   item = g_new0 (GtkIconViewItem, 1);
3131
3132   item->width = -1;
3133   item->height = -1;
3134
3135   return item;
3136 }
3137
3138 static void
3139 gtk_icon_view_item_free (GtkIconViewItem *item)
3140 {
3141   g_return_if_fail (item != NULL);
3142
3143   g_free (item->before);
3144   g_free (item->after);
3145   g_free (item->box);
3146
3147   g_free (item);
3148 }
3149
3150
3151 static GtkIconViewItem *
3152 gtk_icon_view_get_item_at_coords (GtkIconView          *icon_view,
3153                                   gint                  x,
3154                                   gint                  y,
3155                                   gboolean              only_in_cell,
3156                                   GtkIconViewCellInfo **cell_at_pos)
3157 {
3158   GList *items, *l;
3159   GdkRectangle box;
3160
3161   for (items = icon_view->priv->items; items; items = items->next)
3162     {
3163       GtkIconViewItem *item = items->data;
3164
3165       if (x >= item->x - icon_view->priv->column_spacing/2 && x <= item->x + item->width + icon_view->priv->column_spacing/2 &&
3166           y >= item->y - icon_view->priv->row_spacing/2 && y <= item->y + item->height + icon_view->priv->row_spacing/2)
3167         {
3168           if (only_in_cell || cell_at_pos)
3169             {
3170               gtk_icon_view_set_cell_data (icon_view, item);
3171
3172               for (l = icon_view->priv->cell_list; l; l = l->next)
3173                 {
3174                   GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
3175
3176                   if (!info->cell->visible)
3177                     continue;
3178
3179                   gtk_icon_view_get_cell_box (icon_view, item, info, &box);
3180
3181                   if ((x >= box.x && x <= box.x + box.width &&
3182                        y >= box.y && y <= box.y + box.height) ||
3183                       (x >= box.x  &&
3184                        x <= box.x + box.width &&
3185                        y >= box.y &&
3186                        y <= box.y + box.height))
3187                     {
3188                       if (cell_at_pos)
3189                         *cell_at_pos = info;
3190
3191                       return item;
3192                     }
3193                 }
3194
3195               if (only_in_cell)
3196                 return NULL;
3197
3198               if (cell_at_pos)
3199                 *cell_at_pos = NULL;
3200             }
3201
3202           return item;
3203         }
3204     }
3205
3206   return NULL;
3207 }
3208
3209 static void
3210 gtk_icon_view_select_item (GtkIconView      *icon_view,
3211                            GtkIconViewItem  *item)
3212 {
3213   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3214   g_return_if_fail (item != NULL);
3215
3216   if (item->selected)
3217     return;
3218
3219   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
3220     return;
3221   else if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3222     gtk_icon_view_unselect_all_internal (icon_view);
3223
3224   item->selected = TRUE;
3225
3226   gtk_icon_view_queue_draw_item (icon_view, item);
3227
3228   g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3229 }
3230
3231
3232 static void
3233 gtk_icon_view_unselect_item (GtkIconView      *icon_view,
3234                              GtkIconViewItem  *item)
3235 {
3236   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3237   g_return_if_fail (item != NULL);
3238
3239   if (!item->selected)
3240     return;
3241
3242   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE ||
3243       icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
3244     return;
3245
3246   item->selected = FALSE;
3247
3248   g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3249
3250   gtk_icon_view_queue_draw_item (icon_view, item);
3251 }
3252
3253 static void
3254 verify_items (GtkIconView *icon_view)
3255 {
3256   GList *items;
3257   int i = 0;
3258
3259   for (items = icon_view->priv->items; items; items = items->next)
3260     {
3261       GtkIconViewItem *item = items->data;
3262
3263       if (item->index != i)
3264         g_error ("List item does not match its index: "
3265                  "item index %d and list index %d\n", item->index, i);
3266
3267       i++;
3268     }
3269 }
3270
3271 static void
3272 gtk_icon_view_row_changed (GtkTreeModel *model,
3273                            GtkTreePath  *path,
3274                            GtkTreeIter  *iter,
3275                            gpointer      data)
3276 {
3277   GtkIconViewItem *item;
3278   gint index;
3279   GtkIconView *icon_view;
3280
3281   icon_view = GTK_ICON_VIEW (data);
3282
3283   gtk_icon_view_stop_editing (icon_view, TRUE);
3284
3285   index = gtk_tree_path_get_indices(path)[0];
3286   item = g_list_nth_data (icon_view->priv->items, index);
3287
3288   gtk_icon_view_item_invalidate_size (item);
3289   gtk_icon_view_queue_layout (icon_view);
3290
3291   verify_items (icon_view);
3292 }
3293
3294 static void
3295 gtk_icon_view_row_inserted (GtkTreeModel *model,
3296                             GtkTreePath  *path,
3297                             GtkTreeIter  *iter,
3298                             gpointer      data)
3299 {
3300   gint index;
3301   GtkIconViewItem *item;
3302   gboolean iters_persist;
3303   GtkIconView *icon_view;
3304   GList *list;
3305
3306   icon_view = GTK_ICON_VIEW (data);
3307
3308   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
3309
3310   index = gtk_tree_path_get_indices(path)[0];
3311
3312   item = gtk_icon_view_item_new ();
3313
3314   if (iters_persist)
3315     item->iter = *iter;
3316
3317   item->index = index;
3318
3319   /* FIXME: We can be more efficient here,
3320      we can store a tail pointer and use that when
3321      appending (which is a rather common operation)
3322   */
3323   icon_view->priv->items = g_list_insert (icon_view->priv->items,
3324                                          item, index);
3325
3326   list = g_list_nth (icon_view->priv->items, index + 1);
3327   for (; list; list = list->next)
3328     {
3329       item = list->data;
3330
3331       item->index++;
3332     }
3333
3334   verify_items (icon_view);
3335
3336   gtk_icon_view_queue_layout (icon_view);
3337 }
3338
3339 static void
3340 gtk_icon_view_row_deleted (GtkTreeModel *model,
3341                            GtkTreePath  *path,
3342                            gpointer      data)
3343 {
3344   gint index;
3345   GtkIconView *icon_view;
3346   GtkIconViewItem *item;
3347   GList *list, *next;
3348   gboolean emit = FALSE;
3349
3350   icon_view = GTK_ICON_VIEW (data);
3351
3352   index = gtk_tree_path_get_indices(path)[0];
3353
3354   list = g_list_nth (icon_view->priv->items, index);
3355   item = list->data;
3356
3357   gtk_icon_view_stop_editing (icon_view, TRUE);
3358
3359   if (item == icon_view->priv->anchor_item)
3360     icon_view->priv->anchor_item = NULL;
3361
3362   if (item == icon_view->priv->cursor_item)
3363     icon_view->priv->cursor_item = NULL;
3364
3365   if (item->selected)
3366     emit = TRUE;
3367
3368   gtk_icon_view_item_free (item);
3369
3370   for (next = list->next; next; next = next->next)
3371     {
3372       item = next->data;
3373
3374       item->index--;
3375     }
3376
3377   icon_view->priv->items = g_list_delete_link (icon_view->priv->items, list);
3378
3379   verify_items (icon_view);
3380
3381   gtk_icon_view_queue_layout (icon_view);
3382
3383   if (emit)
3384     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3385 }
3386
3387 static void
3388 gtk_icon_view_rows_reordered (GtkTreeModel *model,
3389                               GtkTreePath  *parent,
3390                               GtkTreeIter  *iter,
3391                               gint         *new_order,
3392                               gpointer      data)
3393 {
3394   int i;
3395   int length;
3396   GtkIconView *icon_view;
3397   GList *items = NULL, *list;
3398   GtkIconViewItem **item_array;
3399   gint *order;
3400
3401   icon_view = GTK_ICON_VIEW (data);
3402
3403   gtk_icon_view_stop_editing (icon_view, TRUE);
3404
3405   length = gtk_tree_model_iter_n_children (model, NULL);
3406
3407   order = g_new (gint, length);
3408   for (i = 0; i < length; i++)
3409     order [new_order[i]] = i;
3410
3411   item_array = g_new (GtkIconViewItem *, length);
3412   for (i = 0, list = icon_view->priv->items; list != NULL; list = list->next, i++)
3413     item_array[order[i]] = list->data;
3414   g_free (order);
3415
3416   for (i = length - 1; i >= 0; i--)
3417     {
3418       item_array[i]->index = i;
3419       items = g_list_prepend (items, item_array[i]);
3420     }
3421
3422   g_free (item_array);
3423   g_list_free (icon_view->priv->items);
3424   icon_view->priv->items = items;
3425
3426   gtk_icon_view_queue_layout (icon_view);
3427
3428   verify_items (icon_view);
3429 }
3430
3431 static void
3432 gtk_icon_view_build_items (GtkIconView *icon_view)
3433 {
3434   GtkTreeIter iter;
3435   int i;
3436   gboolean iters_persist;
3437   GList *items = NULL;
3438
3439   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
3440
3441   if (!gtk_tree_model_get_iter_first (icon_view->priv->model,
3442                                       &iter))
3443     return;
3444
3445   i = 0;
3446
3447   do
3448     {
3449       GtkIconViewItem *item = gtk_icon_view_item_new ();
3450
3451       if (iters_persist)
3452         item->iter = iter;
3453
3454       item->index = i;
3455
3456       i++;
3457
3458       items = g_list_prepend (items, item);
3459
3460     } while (gtk_tree_model_iter_next (icon_view->priv->model, &iter));
3461
3462   icon_view->priv->items = g_list_reverse (items);
3463 }
3464
3465 static void
3466 gtk_icon_view_add_move_binding (GtkBindingSet  *binding_set,
3467                                 guint           keyval,
3468                                 guint           modmask,
3469                                 GtkMovementStep step,
3470                                 gint            count)
3471 {
3472
3473   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
3474                                 I_("move_cursor"), 2,
3475                                 G_TYPE_ENUM, step,
3476                                 G_TYPE_INT, count);
3477
3478   gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
3479                                 "move_cursor", 2,
3480                                 G_TYPE_ENUM, step,
3481                                 G_TYPE_INT, count);
3482
3483   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
3484    return;
3485
3486   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
3487                                 "move_cursor", 2,
3488                                 G_TYPE_ENUM, step,
3489                                 G_TYPE_INT, count);
3490
3491   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
3492                                 "move_cursor", 2,
3493                                 G_TYPE_ENUM, step,
3494                                 G_TYPE_INT, count);
3495 }
3496
3497 static gboolean
3498 gtk_icon_view_real_move_cursor (GtkIconView     *icon_view,
3499                                 GtkMovementStep  step,
3500                                 gint             count)
3501 {
3502   GdkModifierType state;
3503
3504   g_return_val_if_fail (GTK_ICON_VIEW (icon_view), FALSE);
3505   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
3506                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
3507                         step == GTK_MOVEMENT_DISPLAY_LINES ||
3508                         step == GTK_MOVEMENT_PAGES ||
3509                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
3510
3511   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (icon_view)))
3512     return FALSE;
3513
3514   gtk_icon_view_stop_editing (icon_view, FALSE);
3515   gtk_widget_grab_focus (GTK_WIDGET (icon_view));
3516
3517   if (gtk_get_current_event_state (&state))
3518     {
3519       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
3520         icon_view->priv->ctrl_pressed = TRUE;
3521       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
3522         icon_view->priv->shift_pressed = TRUE;
3523     }
3524   /* else we assume not pressed */
3525
3526   switch (step)
3527     {
3528     case GTK_MOVEMENT_LOGICAL_POSITIONS:
3529     case GTK_MOVEMENT_VISUAL_POSITIONS:
3530       gtk_icon_view_move_cursor_left_right (icon_view, count);
3531       break;
3532     case GTK_MOVEMENT_DISPLAY_LINES:
3533       gtk_icon_view_move_cursor_up_down (icon_view, count);
3534       break;
3535     case GTK_MOVEMENT_PAGES:
3536       gtk_icon_view_move_cursor_page_up_down (icon_view, count);
3537       break;
3538     case GTK_MOVEMENT_BUFFER_ENDS:
3539       gtk_icon_view_move_cursor_start_end (icon_view, count);
3540       break;
3541     default:
3542       g_assert_not_reached ();
3543     }
3544
3545   icon_view->priv->ctrl_pressed = FALSE;
3546   icon_view->priv->shift_pressed = FALSE;
3547
3548   return TRUE;
3549 }
3550
3551 static GtkIconViewItem *
3552 find_item (GtkIconView     *icon_view,
3553            GtkIconViewItem *current,
3554            gint             row_ofs,
3555            gint             col_ofs)
3556 {
3557   gint row, col;
3558   GList *items;
3559   GtkIconViewItem *item;
3560
3561   /* FIXME: this could be more efficient
3562    */
3563   row = current->row + row_ofs;
3564   col = current->col + col_ofs;
3565
3566   for (items = icon_view->priv->items; items; items = items->next)
3567     {
3568       item = items->data;
3569       if (item->row == row && item->col == col)
3570         return item;
3571     }
3572
3573   return NULL;
3574 }
3575
3576 static gint
3577 find_cell (GtkIconView     *icon_view,
3578            GtkIconViewItem *item,
3579            gint             cell,
3580            GtkOrientation   orientation,
3581            gint             step,
3582            gint            *count)
3583 {
3584   gint n_focusable;
3585   gint *focusable;
3586   gint first_text;
3587   gint current;
3588   gint i, k;
3589   GList *l;
3590
3591   if (icon_view->priv->orientation != orientation)
3592     return cell;
3593
3594   gtk_icon_view_set_cell_data (icon_view, item);
3595
3596   focusable = g_new0 (gint, icon_view->priv->n_cells);
3597   n_focusable = 0;
3598
3599   first_text = 0;
3600   current = 0;
3601   for (k = 0; k < 2; k++)
3602     for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
3603       {
3604         GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data;
3605
3606         if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
3607           continue;
3608
3609         if (!info->cell->visible)
3610           continue;
3611
3612         if (GTK_IS_CELL_RENDERER_TEXT (info->cell))
3613           first_text = i;
3614
3615         if (info->cell->mode != GTK_CELL_RENDERER_MODE_INERT)
3616           {
3617             if (cell == i)
3618               current = n_focusable;
3619
3620             focusable[n_focusable] = i;
3621
3622             n_focusable++;
3623           }
3624       }
3625
3626   if (n_focusable == 0)
3627     focusable[n_focusable++] = first_text;
3628
3629   if (cell < 0)
3630     {
3631       current = step > 0 ? 0 : n_focusable - 1;
3632       cell = focusable[current];
3633     }
3634
3635   if (current + *count < 0)
3636     {
3637       cell = -1;
3638       *count = current + *count;
3639     }
3640   else if (current + *count > n_focusable - 1)
3641     {
3642       cell = -1;
3643       *count = current + *count - (n_focusable - 1);
3644     }
3645   else
3646     {
3647       cell = focusable[current + *count];
3648       *count = 0;
3649     }
3650
3651   g_free (focusable);
3652
3653   return cell;
3654 }
3655
3656 static GtkIconViewItem *
3657 find_item_page_up_down (GtkIconView     *icon_view,
3658                         GtkIconViewItem *current,
3659                         gint             count)
3660 {
3661   GList *item, *next;
3662   gint y, col;
3663
3664   col = current->col;
3665   y = current->y + count * icon_view->priv->vadjustment->page_size;
3666
3667   item = g_list_find (icon_view->priv->items, current);
3668   if (count > 0)
3669     {
3670       while (item)
3671         {
3672           for (next = item->next; next; next = next->next)
3673             {
3674               if (((GtkIconViewItem *)next->data)->col == col)
3675                 break;
3676             }
3677           if (!next || ((GtkIconViewItem *)next->data)->y > y)
3678             break;
3679
3680           item = next;
3681         }
3682     }
3683   else
3684     {
3685       while (item)
3686         {
3687           for (next = item->prev; next; next = next->prev)
3688             {
3689               if (((GtkIconViewItem *)next->data)->col == col)
3690                 break;
3691             }
3692           if (!next || ((GtkIconViewItem *)next->data)->y < y)
3693             break;
3694
3695           item = next;
3696         }
3697     }
3698
3699   if (item)
3700     return item->data;
3701
3702   return NULL;
3703 }
3704
3705 static gboolean
3706 gtk_icon_view_select_all_between (GtkIconView     *icon_view,
3707                                   GtkIconViewItem *anchor,
3708                                   GtkIconViewItem *cursor)
3709 {
3710   GList *items;
3711   GtkIconViewItem *item;
3712   gint row1, row2, col1, col2;
3713   gboolean dirty = FALSE;
3714
3715   if (anchor->row < cursor->row)
3716     {
3717       row1 = anchor->row;
3718       row2 = cursor->row;
3719     }
3720   else
3721     {
3722       row1 = cursor->row;
3723       row2 = anchor->row;
3724     }
3725
3726   if (anchor->col < cursor->col)
3727     {
3728       col1 = anchor->col;
3729       col2 = cursor->col;
3730     }
3731   else
3732     {
3733       col1 = cursor->col;
3734       col2 = anchor->col;
3735     }
3736
3737   for (items = icon_view->priv->items; items; items = items->next)
3738     {
3739       item = items->data;
3740
3741       if (row1 <= item->row && item->row <= row2 &&
3742           col1 <= item->col && item->col <= col2)
3743         {
3744           if (!item->selected)
3745             dirty = TRUE;
3746
3747           item->selected = TRUE;
3748
3749           gtk_icon_view_queue_draw_item (icon_view, item);
3750         }
3751     }
3752
3753   return dirty;
3754 }
3755
3756 static void
3757 gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view,
3758                                    gint         count)
3759 {
3760   GtkIconViewItem *item;
3761   gint cell;
3762   gboolean dirty = FALSE;
3763   gint step;
3764
3765   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
3766     return;
3767
3768   if (!icon_view->priv->cursor_item)
3769     {
3770       GList *list;
3771
3772       if (count > 0)
3773         list = icon_view->priv->items;
3774       else
3775         list = g_list_last (icon_view->priv->items);
3776
3777       item = list ? list->data : NULL;
3778       cell = -1;
3779     }
3780   else
3781     {
3782       item = icon_view->priv->cursor_item;
3783       cell = icon_view->priv->cursor_cell;
3784       step = count > 0 ? 1 : -1;
3785       while (item)
3786         {
3787           cell = find_cell (icon_view, item, cell,
3788                             GTK_ORIENTATION_VERTICAL,
3789                             step, &count);
3790           if (count == 0)
3791             break;
3792
3793           item = find_item (icon_view, item, step, 0);
3794           count = count - step;
3795         }
3796     }
3797
3798   if (!item)
3799     return;
3800
3801   if (icon_view->priv->ctrl_pressed ||
3802       !icon_view->priv->shift_pressed ||
3803       !icon_view->priv->anchor_item ||
3804       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3805     icon_view->priv->anchor_item = item;
3806
3807   gtk_icon_view_set_cursor_item (icon_view, item, cell);
3808
3809   if (!icon_view->priv->ctrl_pressed &&
3810       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
3811     {
3812       dirty = gtk_icon_view_unselect_all_internal (icon_view);
3813       dirty = gtk_icon_view_select_all_between (icon_view,
3814                                                 icon_view->priv->anchor_item,
3815                                                 item) || dirty;
3816     }
3817
3818   gtk_icon_view_scroll_to_item (icon_view, item);
3819
3820   if (dirty)
3821     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3822 }
3823
3824 static void
3825 gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view,
3826                                         gint         count)
3827 {
3828   GtkIconViewItem *item;
3829   gboolean dirty = FALSE;
3830
3831   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
3832     return;
3833
3834   if (!icon_view->priv->cursor_item)
3835     {
3836       GList *list;
3837
3838       if (count > 0)
3839         list = icon_view->priv->items;
3840       else
3841         list = g_list_last (icon_view->priv->items);
3842
3843       item = list ? list->data : NULL;
3844     }
3845   else
3846     item = find_item_page_up_down (icon_view,
3847                                    icon_view->priv->cursor_item,
3848                                    count);
3849
3850   if (!item)
3851     return;
3852
3853   if (icon_view->priv->ctrl_pressed ||
3854       !icon_view->priv->shift_pressed ||
3855       !icon_view->priv->anchor_item ||
3856       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3857     icon_view->priv->anchor_item = item;
3858
3859   gtk_icon_view_set_cursor_item (icon_view, item, -1);
3860
3861   if (!icon_view->priv->ctrl_pressed &&
3862       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
3863     {
3864       dirty = gtk_icon_view_unselect_all_internal (icon_view);
3865       dirty = gtk_icon_view_select_all_between (icon_view,
3866                                                 icon_view->priv->anchor_item,
3867                                                 item) || dirty;
3868     }
3869
3870   gtk_icon_view_scroll_to_item (icon_view, item);
3871
3872   if (dirty)
3873     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3874 }
3875
3876 static void
3877 gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view,
3878                                       gint         count)
3879 {
3880   GtkIconViewItem *item;
3881   gint cell = -1;
3882   gboolean dirty = FALSE;
3883   gint step;
3884
3885   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
3886     return;
3887
3888   if (!icon_view->priv->cursor_item)
3889     {
3890       GList *list;
3891
3892       if (count > 0)
3893         list = icon_view->priv->items;
3894       else
3895         list = g_list_last (icon_view->priv->items);
3896
3897       item = list ? list->data : NULL;
3898     }
3899   else
3900     {
3901       item = icon_view->priv->cursor_item;
3902       cell = icon_view->priv->cursor_cell;
3903       step = count > 0 ? 1 : -1;
3904       while (item)
3905         {
3906           cell = find_cell (icon_view, item, cell,
3907                             GTK_ORIENTATION_HORIZONTAL,
3908                             step, &count);
3909           if (count == 0)
3910             break;
3911
3912           item = find_item (icon_view, item, 0, step);
3913           count = count - step;
3914         }
3915     }
3916
3917   if (!item)
3918     return;
3919
3920   if (icon_view->priv->ctrl_pressed ||
3921       !icon_view->priv->shift_pressed ||
3922       !icon_view->priv->anchor_item ||
3923       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3924     icon_view->priv->anchor_item = item;
3925
3926   gtk_icon_view_set_cursor_item (icon_view, item, cell);
3927
3928   if (!icon_view->priv->ctrl_pressed &&
3929       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
3930     {
3931       dirty = gtk_icon_view_unselect_all_internal (icon_view);
3932       dirty = gtk_icon_view_select_all_between (icon_view,
3933                                                 icon_view->priv->anchor_item,
3934                                                 item) || dirty;
3935     }
3936
3937   gtk_icon_view_scroll_to_item (icon_view, item);
3938
3939   if (dirty)
3940     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3941 }
3942
3943 static void
3944 gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view,
3945                                      gint         count)
3946 {
3947   GtkIconViewItem *item;
3948   GList *list;
3949   gboolean dirty = FALSE;
3950
3951   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
3952     return;
3953
3954   if (count < 0)
3955     list = icon_view->priv->items;
3956   else
3957     list = g_list_last (icon_view->priv->items);
3958
3959   item = list ? list->data : NULL;
3960
3961   if (!item)
3962     return;
3963
3964   if (icon_view->priv->ctrl_pressed ||
3965       !icon_view->priv->shift_pressed ||
3966       !icon_view->priv->anchor_item ||
3967       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3968     icon_view->priv->anchor_item = item;
3969
3970   gtk_icon_view_set_cursor_item (icon_view, item, -1);
3971
3972   if (!icon_view->priv->ctrl_pressed &&
3973       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
3974     {
3975       dirty = gtk_icon_view_unselect_all_internal (icon_view);
3976       dirty = gtk_icon_view_select_all_between (icon_view,
3977                                                 icon_view->priv->anchor_item,
3978                                                 item) || dirty;
3979     }
3980
3981   gtk_icon_view_scroll_to_item (icon_view, item);
3982
3983   if (dirty)
3984     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3985 }
3986
3987 /**
3988  * gtk_icon_view_scroll_to_path:
3989  * @icon_view: A #GtkIconView.
3990  * @path: The path of the item to move to.
3991  * @use_align: whether to use alignment arguments, or %FALSE.
3992  * @row_align: The vertical alignment of the item specified by @path.
3993  * @col_align: The horizontal alignment of the item specified by @path.
3994  *
3995  * Moves the alignments of @icon_view to the position specified by @path.
3996  * @row_align determines where the row is placed, and @col_align determines
3997  * where @column is placed.  Both are expected to be between 0.0 and 1.0.
3998  * 0.0 means left/top alignment, 1.0 means right/bottom alignment, 0.5 means
3999  * center.
4000  *
4001  * If @use_align is %FALSE, then the alignment arguments are ignored, and the
4002  * tree does the minimum amount of work to scroll the item onto the screen.
4003  * This means that the item will be scrolled to the edge closest to its current
4004  * position.  If the item is currently visible on the screen, nothing is done.
4005  *
4006  * This function only works if the model is set, and @path is a valid row on
4007  * the model. If the model changes before the @icon_view is realized, the
4008  * centered path will be modified to reflect this change.
4009  *
4010  * Since: 2.8
4011  **/
4012 void
4013 gtk_icon_view_scroll_to_path (GtkIconView *icon_view,
4014                               GtkTreePath *path,
4015                               gboolean     use_align,
4016                               gfloat       row_align,
4017                               gfloat       col_align)
4018 {
4019   GtkIconViewItem *item = NULL;
4020
4021   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
4022   g_return_if_fail (path != NULL);
4023   g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
4024   g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
4025
4026   if (gtk_tree_path_get_depth (path) > 0)
4027     item = g_list_nth_data (icon_view->priv->items,
4028                             gtk_tree_path_get_indices(path)[0]);
4029
4030   if (!GTK_WIDGET_REALIZED (icon_view) || !item || item->width < 0)
4031     {
4032       if (icon_view->priv->scroll_to_path)
4033         gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
4034
4035       icon_view->priv->scroll_to_path = NULL;
4036
4037       if (path)
4038         icon_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path);
4039
4040       icon_view->priv->scroll_to_use_align = use_align;
4041       icon_view->priv->scroll_to_row_align = row_align;
4042       icon_view->priv->scroll_to_col_align = col_align;
4043
4044       return;
4045     }
4046
4047   if (use_align)
4048     {
4049       gint x, y;
4050       gint focus_width;
4051       gfloat offset, value;
4052
4053       gtk_widget_style_get (GTK_WIDGET (icon_view),
4054                             "focus-line-width", &focus_width,
4055                             NULL);
4056
4057       gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
4058
4059       offset =  y + item->y - focus_width -
4060         row_align * (GTK_WIDGET (icon_view)->allocation.height - item->height);
4061       value = CLAMP (icon_view->priv->vadjustment->value + offset,
4062                      icon_view->priv->vadjustment->lower,
4063                      icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->page_size);
4064       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
4065
4066       offset = x + item->x - focus_width -
4067         col_align * (GTK_WIDGET (icon_view)->allocation.width - item->width);
4068       value = CLAMP (icon_view->priv->hadjustment->value + offset,
4069                      icon_view->priv->hadjustment->lower,
4070                      icon_view->priv->hadjustment->upper - icon_view->priv->hadjustment->page_size);
4071       gtk_adjustment_set_value (icon_view->priv->hadjustment, value);
4072
4073       gtk_adjustment_changed (icon_view->priv->hadjustment);
4074       gtk_adjustment_changed (icon_view->priv->vadjustment);
4075     }
4076   else
4077     gtk_icon_view_scroll_to_item (icon_view, item);
4078 }
4079
4080
4081 static void
4082 gtk_icon_view_scroll_to_item (GtkIconView     *icon_view,
4083                               GtkIconViewItem *item)
4084 {
4085   gint x, y, width, height;
4086   gint focus_width;
4087
4088   gtk_widget_style_get (GTK_WIDGET (icon_view),
4089                         "focus-line-width", &focus_width,
4090                         NULL);
4091
4092   gdk_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window),
4093                          &width, &height);
4094   gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
4095
4096   if (y + item->y - focus_width < 0)
4097     gtk_adjustment_set_value (icon_view->priv->vadjustment,
4098                               icon_view->priv->vadjustment->value + y + item->y - focus_width);
4099   else if (y + item->y + item->height + focus_width > GTK_WIDGET (icon_view)->allocation.height)
4100     gtk_adjustment_set_value (icon_view->priv->vadjustment,
4101                               icon_view->priv->vadjustment->value + y + item->y + item->height
4102                               + focus_width - GTK_WIDGET (icon_view)->allocation.height);
4103
4104   if (x + item->x - focus_width < 0)
4105     gtk_adjustment_set_value (icon_view->priv->hadjustment,
4106                               icon_view->priv->hadjustment->value + x + item->x - focus_width);
4107   else if (x + item->x + item->width + focus_width > GTK_WIDGET (icon_view)->allocation.width)
4108     gtk_adjustment_set_value (icon_view->priv->hadjustment,
4109                               icon_view->priv->hadjustment->value + x + item->x + item->width
4110                               + focus_width - GTK_WIDGET (icon_view)->allocation.width);
4111
4112   gtk_adjustment_changed (icon_view->priv->hadjustment);
4113   gtk_adjustment_changed (icon_view->priv->vadjustment);
4114 }
4115
4116 /* GtkCellLayout implementation */
4117 static GtkIconViewCellInfo *
4118 gtk_icon_view_get_cell_info (GtkIconView     *icon_view,
4119                              GtkCellRenderer *renderer)
4120 {
4121   GList *i;
4122
4123   for (i = icon_view->priv->cell_list; i; i = i->next)
4124     {
4125       GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)i->data;
4126
4127       if (info->cell == renderer)
4128         return info;
4129     }
4130
4131   return NULL;
4132 }
4133
4134 static void
4135 gtk_icon_view_set_cell_data (GtkIconView     *icon_view,
4136                              GtkIconViewItem *item)
4137 {
4138   GList *i;
4139   gboolean iters_persist;
4140   GtkTreeIter iter;
4141
4142   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
4143
4144   if (!iters_persist)
4145     {
4146       GtkTreePath *path;
4147
4148       path = gtk_tree_path_new_from_indices (item->index, -1);
4149       gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
4150       gtk_tree_path_free (path);
4151     }
4152   else
4153     iter = item->iter;
4154
4155   for (i = icon_view->priv->cell_list; i; i = i->next)
4156     {
4157       GSList *j;
4158       GtkIconViewCellInfo *info = i->data;
4159
4160       g_object_freeze_notify (G_OBJECT (info->cell));
4161
4162       for (j = info->attributes; j && j->next; j = j->next->next)
4163         {
4164           gchar *property = j->data;
4165           gint column = GPOINTER_TO_INT (j->next->data);
4166           GValue value = {0, };
4167
4168           gtk_tree_model_get_value (icon_view->priv->model, &iter,
4169                                     column, &value);
4170           g_object_set_property (G_OBJECT (info->cell),
4171                                  property, &value);
4172           g_value_unset (&value);
4173         }
4174
4175       if (info->func)
4176         (* info->func) (GTK_CELL_LAYOUT (icon_view),
4177                         info->cell,
4178                         icon_view->priv->model,
4179                         &iter,
4180                         info->func_data);
4181
4182       g_object_thaw_notify (G_OBJECT (info->cell));
4183     }
4184
4185   adjust_wrap_width (icon_view, item);
4186 }
4187
4188 static void
4189 free_cell_attributes (GtkIconViewCellInfo *info)
4190 {
4191   GSList *list;
4192
4193   list = info->attributes;
4194   while (list && list->next)
4195     {
4196       g_free (list->data);
4197       list = list->next->next;
4198     }
4199
4200   g_slist_free (info->attributes);
4201   info->attributes = NULL;
4202 }
4203
4204 static void
4205 free_cell_info (GtkIconViewCellInfo *info)
4206 {
4207   free_cell_attributes (info);
4208
4209   g_object_unref (info->cell);
4210
4211   if (info->destroy)
4212     (* info->destroy) (info->func_data);
4213
4214   g_free (info);
4215 }
4216
4217 static void
4218 gtk_icon_view_cell_layout_pack_start (GtkCellLayout   *layout,
4219                                       GtkCellRenderer *renderer,
4220                                       gboolean         expand)
4221 {
4222   GtkIconViewCellInfo *info;
4223   GtkIconView *icon_view = GTK_ICON_VIEW (layout);
4224
4225   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
4226   g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer));
4227
4228   g_object_ref_sink (renderer);
4229
4230   info = g_new0 (GtkIconViewCellInfo, 1);
4231   info->cell = renderer;
4232   info->expand = expand ? TRUE : FALSE;
4233   info->pack = GTK_PACK_START;
4234   info->position = icon_view->priv->n_cells;
4235
4236   icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
4237   icon_view->priv->n_cells++;
4238 }
4239
4240 static void
4241 gtk_icon_view_cell_layout_pack_end (GtkCellLayout   *layout,
4242                                     GtkCellRenderer *renderer,
4243                                     gboolean         expand)
4244 {
4245   GtkIconViewCellInfo *info;
4246   GtkIconView *icon_view = GTK_ICON_VIEW (layout);
4247
4248   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
4249   g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer));
4250
4251   g_object_ref_sink (renderer);
4252
4253   info = g_new0 (GtkIconViewCellInfo, 1);
4254   info->cell = renderer;
4255   info->expand = expand ? TRUE : FALSE;
4256   info->pack = GTK_PACK_END;
4257   info->position = icon_view->priv->n_cells;
4258
4259   icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
4260   icon_view->priv->n_cells++;
4261 }
4262
4263 static void
4264 gtk_icon_view_cell_layout_add_attribute (GtkCellLayout   *layout,
4265                                          GtkCellRenderer *renderer,
4266                                          const gchar     *attribute,
4267                                          gint             column)
4268 {
4269   GtkIconViewCellInfo *info;
4270   GtkIconView *icon_view = GTK_ICON_VIEW (layout);
4271
4272   info = gtk_icon_view_get_cell_info (icon_view, renderer);
4273   g_return_if_fail (info != NULL);
4274
4275   info->attributes = g_slist_prepend (info->attributes,
4276                                       GINT_TO_POINTER (column));
4277   info->attributes = g_slist_prepend (info->attributes,
4278                                       g_strdup (attribute));
4279 }
4280
4281 static void
4282 gtk_icon_view_cell_layout_clear (GtkCellLayout *layout)
4283 {
4284   GtkIconView *icon_view = GTK_ICON_VIEW (layout);
4285
4286   while (icon_view->priv->cell_list)
4287     {
4288       GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)icon_view->priv->cell_list->data;
4289       free_cell_info (info);
4290       icon_view->priv->cell_list = g_list_delete_link (icon_view->priv->cell_list,
4291                                                        icon_view->priv->cell_list);
4292     }
4293
4294   icon_view->priv->n_cells = 0;
4295 }
4296
4297 static void
4298 gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
4299                                               GtkCellRenderer       *cell,
4300                                               GtkCellLayoutDataFunc  func,
4301                                               gpointer               func_data,
4302                                               GDestroyNotify         destroy)
4303 {
4304   GtkIconViewCellInfo *info;
4305   GtkIconView *icon_view = GTK_ICON_VIEW (layout);
4306
4307   info = gtk_icon_view_get_cell_info (icon_view, cell);
4308   g_return_if_fail (info != NULL);
4309
4310   if (info->destroy)
4311     {
4312       GDestroyNotify d = info->destroy;
4313
4314       info->destroy = NULL;
4315       d (info->func_data);
4316     }
4317
4318   info->func = func;
4319   info->func_data = func_data;
4320   info->destroy = destroy;
4321 }
4322
4323 static void
4324 gtk_icon_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
4325                                             GtkCellRenderer *renderer)
4326 {
4327   GtkIconViewCellInfo *info;
4328
4329   info = gtk_icon_view_get_cell_info (GTK_ICON_VIEW (layout), renderer);
4330   if (info != NULL)
4331     free_cell_attributes (info);
4332 }
4333
4334 static void
4335 gtk_icon_view_cell_layout_reorder (GtkCellLayout   *layout,
4336                                    GtkCellRenderer *cell,
4337                                    gint             position)
4338 {
4339   GtkIconView *icon_view;
4340   GList *link, *l;
4341   GtkIconViewCellInfo *info;
4342   gint i;
4343
4344   icon_view = GTK_ICON_VIEW (layout);
4345
4346   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
4347
4348   info = gtk_icon_view_get_cell_info (icon_view, cell);
4349
4350   g_return_if_fail (info != NULL);
4351   g_return_if_fail (position >= 0);
4352
4353   link = g_list_find (icon_view->priv->cell_list, info);
4354
4355   g_return_if_fail (link != NULL);
4356
4357   icon_view->priv->cell_list = g_list_remove_link (icon_view->priv->cell_list,
4358                                                   link);
4359   icon_view->priv->cell_list = g_list_insert (icon_view->priv->cell_list,
4360                                              info, position);
4361
4362   for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
4363     {
4364       info = l->data;
4365
4366       info->position = i;
4367     }
4368
4369   gtk_widget_queue_draw (GTK_WIDGET (icon_view));
4370 }
4371
4372 /* Public API */
4373
4374
4375 /**
4376  * gtk_icon_view_new:
4377  *
4378  * Creates a new #GtkIconView widget
4379  *
4380  * Return value: A newly created #GtkIconView widget
4381  *
4382  * Since: 2.6
4383  **/
4384 GtkWidget *
4385 gtk_icon_view_new (void)
4386 {
4387   return g_object_new (GTK_TYPE_ICON_VIEW, NULL);
4388 }
4389
4390 /**
4391  * gtk_icon_view_new_with_model:
4392  * @model: The model.
4393  *
4394  * Creates a new #GtkIconView widget with the model @model.
4395  *
4396  * Return value: A newly created #GtkIconView widget.
4397  *
4398  * Since: 2.6
4399  **/
4400 GtkWidget *
4401 gtk_icon_view_new_with_model (GtkTreeModel *model)
4402 {
4403   return g_object_new (GTK_TYPE_ICON_VIEW, "model", model, NULL);
4404 }
4405
4406
4407 /**
4408  * gtk_icon_view_get_path_at_pos:
4409  * @icon_view: A #GtkIconView.
4410  * @x: The x position to be identified
4411  * @y: The y position to be identified
4412  *
4413  * Finds the path at the point (@x, @y), relative to widget coordinates.
4414  * See gtk_icon_view_get_item_at_pos(), if you are also interested in
4415  * the cell at the specified position.
4416  *
4417  * Return value: The #GtkTreePath corresponding to the icon or %NULL
4418  * if no icon exists at that position.
4419  *
4420  * Since: 2.6
4421  **/
4422 GtkTreePath *
4423 gtk_icon_view_get_path_at_pos (GtkIconView *icon_view,
4424                                gint         x,
4425                                gint         y)
4426 {
4427   GtkIconViewItem *item;
4428   GtkTreePath *path;
4429
4430   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
4431
4432   item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, NULL);
4433
4434   if (!item)
4435     return NULL;
4436
4437   path = gtk_tree_path_new_from_indices (item->index, -1);
4438
4439   return path;
4440 }
4441
4442 /**
4443  * gtk_icon_view_get_item_at_pos:
4444  * @icon_view: A #GtkIconView.
4445  * @x: The x position to be identified
4446  * @y: The y position to be identified
4447  * @path: Return location for the path, or %NULL
4448  * @cell: Return location for the renderer responsible for the cell
4449  *   at (@x, @y), or %NULL
4450  *
4451  * Finds the path at the point (@x, @y), relative to widget coordinates.
4452  * In contrast to gtk_icon_view_get_path_at_pos(), this function also
4453  * obtains the cell at the specified position. The returned path should
4454  * be freed with gtk_tree_path_free().
4455  *
4456  * Return value: %TRUE if an item exists at the specified position
4457  *
4458  * Since: 2.8
4459  **/
4460 gboolean
4461 gtk_icon_view_get_item_at_pos (GtkIconView      *icon_view,
4462                                gint              x,
4463                                gint              y,
4464                                GtkTreePath     **path,
4465                                GtkCellRenderer **cell)
4466 {
4467   GtkIconViewItem *item;
4468   GtkIconViewCellInfo *info;
4469
4470   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
4471
4472   item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, &info);
4473
4474   if (path != NULL)
4475     {
4476       if (item != NULL)
4477         *path = gtk_tree_path_new_from_indices (item->index, -1);
4478       else
4479         *path = NULL;
4480     }
4481
4482   if (cell != NULL)
4483     {
4484       if (info != NULL)
4485         *cell = info->cell;
4486       else
4487         *cell = NULL;
4488     }
4489
4490   return (item != NULL);
4491 }
4492
4493
4494 /**
4495  * gtk_icon_view_get_visible_range:
4496  * @icon_view: A #GtkIconView
4497  * @start_path: Return location for start of region, or %NULL
4498  * @end_path: Return location for end of region, or %NULL
4499  *
4500  * Sets @start_path and @end_path to be the first and last visible path.
4501  * Note that there may be invisible paths in between.
4502  *
4503  * Both paths should be freed with gtk_tree_path_free() after use.
4504  *
4505  * Return value: %TRUE, if valid paths were placed in @start_path and @end_path
4506  *
4507  * Since: 2.8
4508  **/
4509 gboolean
4510 gtk_icon_view_get_visible_range (GtkIconView  *icon_view,
4511                                  GtkTreePath **start_path,
4512                                  GtkTreePath **end_path)
4513 {
4514   gint start_index = -1;
4515   gint end_index = -1;
4516   GList *icons;
4517
4518   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
4519
4520   if (icon_view->priv->hadjustment == NULL ||
4521       icon_view->priv->vadjustment == NULL)
4522     return FALSE;
4523
4524   if (start_path == NULL && end_path == NULL)
4525     return FALSE;
4526
4527   for (icons = icon_view->priv->items; icons; icons = icons->next)
4528     {
4529       GtkIconViewItem *item = icons->data;
4530
4531       if ((item->x + item->width >= (int)icon_view->priv->hadjustment->value) &&
4532           (item->y + item->height >= (int)icon_view->priv->vadjustment->value) &&
4533           (item->x <= (int) (icon_view->priv->hadjustment->value + icon_view->priv->hadjustment->page_size)) &&
4534           (item->y <= (int) (icon_view->priv->vadjustment->value + icon_view->priv->vadjustment->page_size)))
4535         {
4536           if (start_index == -1)
4537             start_index = item->index;
4538           end_index = item->index;
4539         }
4540     }
4541
4542   if (start_path && start_index != -1)
4543     *start_path = gtk_tree_path_new_from_indices (start_index, -1);
4544   if (end_path && end_index != -1)
4545     *end_path = gtk_tree_path_new_from_indices (end_index, -1);
4546
4547   return start_index != -1;
4548 }
4549
4550 /**
4551  * gtk_icon_view_selected_foreach:
4552  * @icon_view: A #GtkIconView.
4553  * @func: The funcion to call for each selected icon.
4554  * @data: User data to pass to the function.
4555  *
4556  * Calls a function for each selected icon. Note that the model or
4557  * selection cannot be modified from within this function.
4558  *
4559  * Since: 2.6
4560  **/
4561 void
4562 gtk_icon_view_selected_foreach (GtkIconView           *icon_view,
4563                                 GtkIconViewForeachFunc func,
4564                                 gpointer               data)
4565 {
4566   GList *list;
4567
4568   for (list = icon_view->priv->items; list; list = list->next)
4569     {
4570       GtkIconViewItem *item = list->data;
4571       GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
4572
4573       if (item->selected)
4574         (* func) (icon_view, path, data);
4575
4576       gtk_tree_path_free (path);
4577     }
4578 }
4579
4580 /**
4581  * gtk_icon_view_set_selection_mode:
4582  * @icon_view: A #GtkIconView.
4583  * @mode: The selection mode
4584  *
4585  * Sets the selection mode of the @icon_view.
4586  *
4587  * Since: 2.6
4588  **/
4589 void
4590 gtk_icon_view_set_selection_mode (GtkIconView      *icon_view,
4591                                   GtkSelectionMode  mode)
4592 {
4593   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
4594
4595   if (mode == icon_view->priv->selection_mode)
4596     return;
4597
4598   if (mode == GTK_SELECTION_NONE ||
4599       icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
4600     gtk_icon_view_unselect_all (icon_view);
4601
4602   icon_view->priv->selection_mode = mode;
4603
4604   g_object_notify (G_OBJECT (icon_view), "selection-mode");
4605 }
4606
4607 /**
4608  * gtk_icon_view_get_selection_mode:
4609  * @icon_view: A #GtkIconView.
4610  *
4611  * Gets the selection mode of the @icon_view.
4612  *
4613  * Return value: the current selection mode
4614  *
4615  * Since: 2.6
4616  **/
4617 GtkSelectionMode
4618 gtk_icon_view_get_selection_mode (GtkIconView *icon_view)
4619 {
4620   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE);
4621
4622   return icon_view->priv->selection_mode;
4623 }
4624
4625 /**
4626  * gtk_icon_view_set_model:
4627  * @icon_view: A #GtkIconView.
4628  * @model: The model.
4629  *
4630  * Sets the model for a #GtkIconView.
4631  * If the @icon_view already has a model set, it will remove
4632  * it before setting the new model.  If @model is %NULL, then
4633  * it will unset the old model.
4634  *
4635  * Since: 2.6
4636  **/
4637 void
4638 gtk_icon_view_set_model (GtkIconView *icon_view,
4639                          GtkTreeModel *model)
4640 {
4641   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
4642   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
4643
4644   if (icon_view->priv->model == model)
4645     return;
4646
4647   if (icon_view->priv->scroll_to_path)
4648     {
4649       gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
4650       icon_view->priv->scroll_to_path = NULL;
4651     }
4652
4653   gtk_icon_view_stop_editing (icon_view, TRUE);
4654
4655   if (model)
4656     {
4657       GType column_type;
4658
4659       g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY);
4660
4661       if (icon_view->priv->pixbuf_column != -1)
4662         {
4663           column_type = gtk_tree_model_get_column_type (model,
4664                                                         icon_view->priv->pixbuf_column);
4665
4666           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
4667         }
4668
4669       if (icon_view->priv->text_column != -1)
4670         {
4671           column_type = gtk_tree_model_get_column_type (model,
4672                                                         icon_view->priv->text_column);
4673
4674           g_return_if_fail (column_type == G_TYPE_STRING);
4675         }
4676
4677       if (icon_view->priv->markup_column != -1)
4678         {
4679           column_type = gtk_tree_model_get_column_type (model,
4680                                                         icon_view->priv->markup_column);
4681
4682           g_return_if_fail (column_type == G_TYPE_STRING);
4683         }
4684
4685     }
4686
4687   if (icon_view->priv->model)
4688     {
4689       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
4690                                             gtk_icon_view_row_changed,
4691                                             icon_view);
4692       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
4693                                             gtk_icon_view_row_inserted,
4694                                             icon_view);
4695       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
4696                                             gtk_icon_view_row_deleted,
4697                                             icon_view);
4698       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
4699                                             gtk_icon_view_rows_reordered,
4700                                             icon_view);
4701
4702       g_object_unref (icon_view->priv->model);
4703
4704       g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_free, NULL);
4705       g_list_free (icon_view->priv->items);
4706       icon_view->priv->items = NULL;
4707       icon_view->priv->anchor_item = NULL;
4708       icon_view->priv->cursor_item = NULL;
4709       icon_view->priv->last_single_clicked = NULL;
4710       icon_view->priv->width = 0;
4711       icon_view->priv->height = 0;
4712     }
4713
4714   icon_view->priv->model = model;
4715
4716   if (icon_view->priv->model)
4717     {
4718       g_object_ref (icon_view->priv->model);
4719       g_signal_connect (icon_view->priv->model,
4720                         "row_changed",
4721                         G_CALLBACK (gtk_icon_view_row_changed),
4722                         icon_view);
4723       g_signal_connect (icon_view->priv->model,
4724                         "row_inserted",
4725                         G_CALLBACK (gtk_icon_view_row_inserted),
4726                         icon_view);
4727       g_signal_connect (icon_view->priv->model,
4728                         "row_deleted",
4729                         G_CALLBACK (gtk_icon_view_row_deleted),
4730                         icon_view);
4731       g_signal_connect (icon_view->priv->model,
4732                         "rows_reordered",
4733                         G_CALLBACK (gtk_icon_view_rows_reordered),
4734                         icon_view);
4735
4736       gtk_icon_view_build_items (icon_view);
4737
4738       gtk_icon_view_queue_layout (icon_view);
4739     }
4740
4741   g_object_notify (G_OBJECT (icon_view), "model");
4742
4743   if (GTK_WIDGET_REALIZED (icon_view))
4744     gtk_widget_queue_resize (GTK_WIDGET (icon_view));
4745 }
4746
4747 /**
4748  * gtk_icon_view_get_model:
4749  * @icon_view: a #GtkIconView
4750  *
4751  * Returns the model the #GtkIconView is based on.  Returns %NULL if the
4752  * model is unset.
4753  *
4754  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
4755  *
4756  * Since: 2.6
4757  **/
4758 GtkTreeModel *
4759 gtk_icon_view_get_model (GtkIconView *icon_view)
4760 {
4761   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
4762
4763   return icon_view->priv->model;
4764 }
4765
4766 static void
4767 update_text_cell (GtkIconView *icon_view)
4768 {
4769   GtkIconViewCellInfo *info;
4770   GList *l;
4771   gint i;
4772
4773   if (icon_view->priv->text_column == -1 &&
4774       icon_view->priv->markup_column == -1)
4775     {
4776       if (icon_view->priv->text_cell != -1)
4777         {
4778           if (icon_view->priv->pixbuf_cell > icon_view->priv->text_cell)
4779             icon_view->priv->pixbuf_cell--;
4780
4781           info = g_list_nth_data (icon_view->priv->cell_list,
4782                                   icon_view->priv->text_cell);
4783
4784           icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);
4785
4786           free_cell_info (info);
4787
4788           icon_view->priv->n_cells--;
4789           icon_view->priv->text_cell = -1;
4790         }
4791     }
4792   else
4793     {
4794       if (icon_view->priv->text_cell == -1)
4795         {
4796           GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
4797           gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
4798           for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
4799             {
4800               info = l->data;
4801               if (info->cell == cell)
4802                 {
4803                   icon_view->priv->text_cell = i;
4804                   break;
4805                 }
4806             }
4807         }
4808
4809       info = g_list_nth_data (icon_view->priv->cell_list,
4810                               icon_view->priv->text_cell);
4811
4812       if (icon_view->priv->markup_column != -1)
4813         gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
4814                                         info->cell,
4815                                         "markup", icon_view->priv->markup_column,
4816                                         NULL);
4817       else
4818         gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
4819                                         info->cell,
4820                                         "text", icon_view->priv->text_column,
4821                                         NULL);
4822
4823       if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL)
4824         g_object_set (info->cell,
4825                       "wrap-mode", PANGO_WRAP_CHAR,
4826                       "wrap-width", icon_view->priv->item_width,
4827                       "xalign", 0.5,
4828                       "yalign", 0.0,
4829                       NULL);
4830       else
4831         g_object_set (info->cell,
4832                       "wrap-mode", PANGO_WRAP_CHAR,
4833                       "wrap-width", icon_view->priv->item_width,
4834                       "xalign", 0.0,
4835                       "yalign", 0.0,
4836                       NULL);
4837     }
4838 }
4839
4840 static void
4841 update_pixbuf_cell (GtkIconView *icon_view)
4842 {
4843   GtkIconViewCellInfo *info;
4844   GList *l;
4845   gint i;
4846
4847   if (icon_view->priv->pixbuf_column == -1)
4848     {
4849       if (icon_view->priv->pixbuf_cell != -1)
4850         {
4851           if (icon_view->priv->text_cell > icon_view->priv->pixbuf_cell)
4852             icon_view->priv->text_cell--;
4853
4854           info = g_list_nth_data (icon_view->priv->cell_list,
4855                                   icon_view->priv->pixbuf_cell);
4856
4857           icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);
4858
4859           free_cell_info (info);
4860
4861           icon_view->priv->n_cells--;
4862           icon_view->priv->pixbuf_cell = -1;
4863         }
4864     }
4865   else
4866     {
4867       if (icon_view->priv->pixbuf_cell == -1)
4868         {
4869           GtkCellRenderer *cell = gtk_cell_renderer_pixbuf_new ();
4870
4871           gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
4872           for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
4873             {
4874               info = l->data;
4875               if (info->cell == cell)
4876                 {
4877                   icon_view->priv->pixbuf_cell = i;
4878                   break;
4879                 }
4880             }
4881         }
4882
4883         info = g_list_nth_data (icon_view->priv->cell_list,
4884                                 icon_view->priv->pixbuf_cell);
4885
4886         gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
4887                                         info->cell,
4888                                         "pixbuf", icon_view->priv->pixbuf_column,
4889                                         NULL);
4890
4891         if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL)
4892           g_object_set (info->cell,
4893                         "follow-state", TRUE,
4894                         "xalign", 0.5,
4895                         "yalign", 1.0,
4896                         NULL);
4897         else
4898           g_object_set (info->cell,
4899                         "follow-state", TRUE,
4900                         "xalign", 0.0,
4901                         "yalign", 0.0,
4902                         NULL);
4903     }
4904 }
4905
4906 /**
4907  * gtk_icon_view_set_text_column:
4908  * @icon_view: A #GtkIconView.
4909  * @column: A column in the currently used model.
4910  *
4911  * Sets the column with text for @icon_view to be @column. The text
4912  * column must be of type #G_TYPE_STRING.
4913  *
4914  * Since: 2.6
4915  **/
4916 void
4917 gtk_icon_view_set_text_column (GtkIconView *icon_view,
4918                                gint          column)
4919 {
4920   if (column == icon_view->priv->text_column)
4921     return;
4922
4923   if (column == -1)
4924     icon_view->priv->text_column = -1;
4925   else
4926     {
4927       if (icon_view->priv->model != NULL)
4928         {
4929           GType column_type;
4930
4931           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
4932
4933           g_return_if_fail (column_type == G_TYPE_STRING);
4934         }
4935
4936       icon_view->priv->text_column = column;
4937     }
4938
4939   gtk_icon_view_stop_editing (icon_view, TRUE);
4940
4941   update_text_cell (icon_view);
4942
4943   gtk_icon_view_invalidate_sizes (icon_view);
4944   gtk_icon_view_queue_layout (icon_view);
4945
4946   g_object_notify (G_OBJECT (icon_view), "text-column");
4947 }
4948
4949 /**
4950  * gtk_icon_view_get_text_column:
4951  * @icon_view: A #GtkIconView.
4952  *
4953  * Returns the column with text for @icon_view.
4954  *
4955  * Returns: the text column, or -1 if it's unset.
4956  *
4957  * Since: 2.6
4958  */
4959 gint
4960 gtk_icon_view_get_text_column (GtkIconView  *icon_view)
4961 {
4962   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
4963
4964   return icon_view->priv->text_column;
4965 }
4966
4967 /**
4968  * gtk_icon_view_set_markup_column:
4969  * @icon_view: A #GtkIconView.
4970  * @column: A column in the currently used model.
4971  *
4972  * Sets the column with markup information for @icon_view to be
4973  * @column. The markup column must be of type #G_TYPE_STRING.
4974  * If the markup column is set to something, it overrides
4975  * the text column set by gtk_icon_view_set_text_column().
4976  *
4977  * Since: 2.6
4978  **/
4979 void
4980 gtk_icon_view_set_markup_column (GtkIconView *icon_view,
4981                                  gint         column)
4982 {
4983   if (column == icon_view->priv->markup_column)
4984     return;
4985
4986   if (column == -1)
4987     icon_view->priv->markup_column = -1;
4988   else
4989     {
4990       if (icon_view->priv->model != NULL)
4991         {
4992           GType column_type;
4993
4994           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
4995
4996           g_return_if_fail (column_type == G_TYPE_STRING);
4997         }
4998
4999       icon_view->priv->markup_column = column;
5000     }
5001
5002   gtk_icon_view_stop_editing (icon_view, TRUE);
5003
5004   update_text_cell (icon_view);
5005
5006   gtk_icon_view_invalidate_sizes (icon_view);
5007   gtk_icon_view_queue_layout (icon_view);
5008
5009   g_object_notify (G_OBJECT (icon_view), "markup-column");
5010 }
5011
5012 /**
5013  * gtk_icon_view_get_markup_column:
5014  * @icon_view: A #GtkIconView.
5015  *
5016  * Returns the column with markup text for @icon_view.
5017  *
5018  * Returns: the markup column, or -1 if it's unset.
5019  *
5020  * Since: 2.6
5021  */
5022 gint
5023 gtk_icon_view_get_markup_column (GtkIconView  *icon_view)
5024 {
5025   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5026
5027   return icon_view->priv->markup_column;
5028 }
5029
5030 /**
5031  * gtk_icon_view_set_pixbuf_column:
5032  * @icon_view: A #GtkIconView.
5033  * @column: A column in the currently used model.
5034  *
5035  * Sets the column with pixbufs for @icon_view to be @column. The pixbuf
5036  * column must be of type #GDK_TYPE_PIXBUF
5037  *
5038  * Since: 2.6
5039  **/
5040 void
5041 gtk_icon_view_set_pixbuf_column (GtkIconView *icon_view,
5042                                  gint         column)
5043 {
5044   if (column == icon_view->priv->pixbuf_column)
5045     return;
5046
5047   if (column == -1)
5048     icon_view->priv->pixbuf_column = -1;
5049   else
5050     {
5051       if (icon_view->priv->model != NULL)
5052         {
5053           GType column_type;
5054
5055           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
5056
5057           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
5058         }
5059
5060       icon_view->priv->pixbuf_column = column;
5061     }
5062
5063   gtk_icon_view_stop_editing (icon_view, TRUE);
5064
5065   update_pixbuf_cell (icon_view);
5066
5067   gtk_icon_view_invalidate_sizes (icon_view);
5068   gtk_icon_view_queue_layout (icon_view);
5069
5070   g_object_notify (G_OBJECT (icon_view), "pixbuf-column");
5071
5072 }
5073
5074 /**
5075  * gtk_icon_view_get_pixbuf_column:
5076  * @icon_view: A #GtkIconView.
5077  *
5078  * Returns the column with pixbufs for @icon_view.
5079  *
5080  * Returns: the pixbuf column, or -1 if it's unset.
5081  *
5082  * Since: 2.6
5083  */
5084 gint
5085 gtk_icon_view_get_pixbuf_column (GtkIconView  *icon_view)
5086 {
5087   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5088
5089   return icon_view->priv->pixbuf_column;
5090 }
5091
5092 /**
5093  * gtk_icon_view_select_path:
5094  * @icon_view: A #GtkIconView.
5095  * @path: The #GtkTreePath to be selected.
5096  *
5097  * Selects the row at @path.
5098  *
5099  * Since: 2.6
5100  **/
5101 void
5102 gtk_icon_view_select_path (GtkIconView *icon_view,
5103                            GtkTreePath *path)
5104 {
5105   GtkIconViewItem *item = NULL;
5106
5107   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5108   g_return_if_fail (icon_view->priv->model != NULL);
5109   g_return_if_fail (path != NULL);
5110
5111   if (gtk_tree_path_get_depth (path) > 0)
5112     item = g_list_nth_data (icon_view->priv->items,
5113                             gtk_tree_path_get_indices(path)[0]);
5114
5115   if (item)
5116     gtk_icon_view_select_item (icon_view, item);
5117 }
5118
5119 /**
5120  * gtk_icon_view_unselect_path:
5121  * @icon_view: A #GtkIconView.
5122  * @path: The #GtkTreePath to be unselected.
5123  *
5124  * Unselects the row at @path.
5125  *
5126  * Since: 2.6
5127  **/
5128 void
5129 gtk_icon_view_unselect_path (GtkIconView *icon_view,
5130                              GtkTreePath *path)
5131 {
5132   GtkIconViewItem *item;
5133
5134   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5135   g_return_if_fail (icon_view->priv->model != NULL);
5136   g_return_if_fail (path != NULL);
5137
5138   item = g_list_nth_data (icon_view->priv->items,
5139                           gtk_tree_path_get_indices(path)[0]);
5140
5141   if (!item)
5142     return;
5143
5144   gtk_icon_view_unselect_item (icon_view, item);
5145 }
5146
5147 /**
5148  * gtk_icon_view_get_selected_items:
5149  * @icon_view: A #GtkIconView.
5150  *
5151  * Creates a list of paths of all selected items. Additionally, if you are
5152  * planning on modifying the model after calling this function, you may
5153  * want to convert the returned list into a list of #GtkTreeRowReference<!-- -->s.
5154  * To do this, you can use gtk_tree_row_reference_new().
5155  *
5156  * To free the return value, use:
5157  * <informalexample><programlisting>
5158  * g_list_foreach (list, gtk_tree_path_free, NULL);
5159  * g_list_free (list);
5160  * </programlisting></informalexample>
5161  *
5162  * Return value: A #GList containing a #GtkTreePath for each selected row.
5163  *
5164  * Since: 2.6
5165  **/
5166 GList *
5167 gtk_icon_view_get_selected_items (GtkIconView *icon_view)
5168 {
5169   GList *list;
5170   GList *selected = NULL;
5171
5172   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
5173
5174   for (list = icon_view->priv->items; list != NULL; list = list->next)
5175     {
5176       GtkIconViewItem *item = list->data;
5177
5178       if (item->selected)
5179         {
5180           GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
5181
5182           selected = g_list_prepend (selected, path);
5183         }
5184     }
5185
5186   return selected;
5187 }
5188
5189 /**
5190  * gtk_icon_view_select_all:
5191  * @icon_view: A #GtkIconView.
5192  *
5193  * Selects all the icons. @icon_view must has its selection mode set
5194  * to #GTK_SELECTION_MULTIPLE.
5195  *
5196  * Since: 2.6
5197  **/
5198 void
5199 gtk_icon_view_select_all (GtkIconView *icon_view)
5200 {
5201   GList *items;
5202   gboolean dirty = FALSE;
5203
5204   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5205
5206   if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
5207     return;
5208
5209   for (items = icon_view->priv->items; items; items = items->next)
5210     {
5211       GtkIconViewItem *item = items->data;
5212
5213       if (!item->selected)
5214         {
5215           dirty = TRUE;
5216           item->selected = TRUE;
5217           gtk_icon_view_queue_draw_item (icon_view, item);
5218         }
5219     }
5220
5221   if (dirty)
5222     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
5223 }
5224
5225 /**
5226  * gtk_icon_view_unselect_all:
5227  * @icon_view: A #GtkIconView.
5228  *
5229  * Unselects all the icons.
5230  *
5231  * Since: 2.6
5232  **/
5233 void
5234 gtk_icon_view_unselect_all (GtkIconView *icon_view)
5235 {
5236   gboolean dirty = FALSE;
5237
5238   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5239
5240   if (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
5241     return;
5242
5243   dirty = gtk_icon_view_unselect_all_internal (icon_view);
5244
5245   if (dirty)
5246     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
5247 }
5248
5249 /**
5250  * gtk_icon_view_path_is_selected:
5251  * @icon_view: A #GtkIconView.
5252  * @path: A #GtkTreePath to check selection on.
5253  *
5254  * Returns %TRUE if the icon pointed to by @path is currently
5255  * selected. If @icon does not point to a valid location, %FALSE is returned.
5256  *
5257  * Return value: %TRUE if @path is selected.
5258  *
5259  * Since: 2.6
5260  **/
5261 gboolean
5262 gtk_icon_view_path_is_selected (GtkIconView *icon_view,
5263                                 GtkTreePath *path)
5264 {
5265   GtkIconViewItem *item;
5266
5267   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
5268   g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
5269   g_return_val_if_fail (path != NULL, FALSE);
5270
5271   item = g_list_nth_data (icon_view->priv->items,
5272                           gtk_tree_path_get_indices(path)[0]);
5273
5274   if (!item)
5275     return FALSE;
5276
5277   return item->selected;
5278 }
5279
5280 /**
5281  * gtk_icon_view_item_activated:
5282  * @icon_view: A #GtkIconView
5283  * @path: The #GtkTreePath to be activated
5284  *
5285  * Activates the item determined by @path.
5286  *
5287  * Since: 2.6
5288  **/
5289 void
5290 gtk_icon_view_item_activated (GtkIconView      *icon_view,
5291                               GtkTreePath      *path)
5292 {
5293   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5294   g_return_if_fail (path != NULL);
5295
5296   g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path);
5297 }
5298
5299 /**
5300  * gtk_icon_view_set_orientation:
5301  * @icon_view: a #GtkIconView
5302  * @orientation: the relative position of texts and icons
5303  *
5304  * Sets the ::orientation property which determines whether the labels
5305  * are drawn beside the icons instead of below.
5306  *
5307  * Since: 2.6
5308  **/
5309 void
5310 gtk_icon_view_set_orientation (GtkIconView    *icon_view,
5311                                GtkOrientation  orientation)
5312 {
5313   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5314
5315   if (icon_view->priv->orientation != orientation)
5316     {
5317       icon_view->priv->orientation = orientation;
5318
5319       gtk_icon_view_stop_editing (icon_view, TRUE);
5320       gtk_icon_view_invalidate_sizes (icon_view);
5321       gtk_icon_view_queue_layout (icon_view);
5322
5323       update_text_cell (icon_view);
5324       update_pixbuf_cell (icon_view);
5325
5326       g_object_notify (G_OBJECT (icon_view), "orientation");
5327     }
5328 }
5329
5330 /**
5331  * gtk_icon_view_get_orientation:
5332  * @icon_view: a #GtkIconView
5333  *
5334  * Returns the value of the ::orientation property which determines
5335  * whether the labels are drawn beside the icons instead of below.
5336  *
5337  * Return value: the relative position of texts and icons
5338  *
5339  * Since: 2.6
5340  **/
5341 GtkOrientation
5342 gtk_icon_view_get_orientation (GtkIconView *icon_view)
5343 {
5344   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view),
5345                         GTK_ORIENTATION_VERTICAL);
5346
5347   return icon_view->priv->orientation;
5348 }
5349
5350 /**
5351  * gtk_icon_view_set_columns:
5352  * @icon_view: a #GtkIconView
5353  * @columns: the number of columns
5354  *
5355  * Sets the ::columns property which determines in how
5356  * many columns the icons are arranged. If @columns is
5357  * -1, the number of columns will be chosen automatically
5358  * to fill the available area.
5359  *
5360  * Since: 2.6
5361  */
5362 void
5363 gtk_icon_view_set_columns (GtkIconView *icon_view,
5364                            gint         columns)
5365 {
5366   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5367
5368   if (icon_view->priv->columns != columns)
5369     {
5370       icon_view->priv->columns = columns;
5371
5372       gtk_icon_view_stop_editing (icon_view, TRUE);
5373       gtk_icon_view_queue_layout (icon_view);
5374
5375       g_object_notify (G_OBJECT (icon_view), "columns");
5376     }
5377 }
5378
5379 /**
5380  * gtk_icon_view_get_columns:
5381  * @icon_view: a #GtkIconView
5382  *
5383  * Returns the value of the ::columns property.
5384  *
5385  * Return value: the number of columns, or -1
5386  *
5387  * Since: 2.6
5388  */
5389 gint
5390 gtk_icon_view_get_columns (GtkIconView *icon_view)
5391 {
5392   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5393
5394   return icon_view->priv->columns;
5395 }
5396
5397 /**
5398  * gtk_icon_view_set_item_width:
5399  * @icon_view: a #GtkIconView
5400  * @item_width: the width for each item
5401  *
5402  * Sets the ::item-width property which specifies the width
5403  * to use for each item. If it is set to -1, the icon view will
5404  * automatically determine a suitable item size.
5405  *
5406  * Since: 2.6
5407  */
5408 void
5409 gtk_icon_view_set_item_width (GtkIconView *icon_view,
5410                               gint         item_width)
5411 {
5412   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5413
5414   if (icon_view->priv->item_width != item_width)
5415     {
5416       icon_view->priv->item_width = item_width;
5417
5418       gtk_icon_view_stop_editing (icon_view, TRUE);
5419       gtk_icon_view_invalidate_sizes (icon_view);
5420       gtk_icon_view_queue_layout (icon_view);
5421
5422       update_text_cell (icon_view);
5423
5424       g_object_notify (G_OBJECT (icon_view), "item-width");
5425     }
5426 }
5427
5428 /**
5429  * gtk_icon_view_get_item_width:
5430  * @icon_view: a #GtkIconView
5431  *
5432  * Returns the value of the ::item-width property.
5433  *
5434  * Return value: the width of a single item, or -1
5435  *
5436  * Since: 2.6
5437  */
5438 gint
5439 gtk_icon_view_get_item_width (GtkIconView *icon_view)
5440 {
5441   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5442
5443   return icon_view->priv->item_width;
5444 }
5445
5446
5447 /**
5448  * gtk_icon_view_set_spacing:
5449  * @icon_view: a #GtkIconView
5450  * @spacing: the spacing
5451  *
5452  * Sets the ::spacing property which specifies the space
5453  * which is inserted between the cells (i.e. the icon and
5454  * the text) of an item.
5455  *
5456  * Since: 2.6
5457  */
5458 void
5459 gtk_icon_view_set_spacing (GtkIconView *icon_view,
5460                            gint         spacing)
5461 {
5462   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5463
5464   if (icon_view->priv->spacing != spacing)
5465     {
5466       icon_view->priv->spacing = spacing;
5467
5468       gtk_icon_view_stop_editing (icon_view, TRUE);
5469       gtk_icon_view_invalidate_sizes (icon_view);
5470       gtk_icon_view_queue_layout (icon_view);
5471
5472       g_object_notify (G_OBJECT (icon_view), "spacing");
5473     }
5474 }
5475
5476 /**
5477  * gtk_icon_view_get_spacing:
5478  * @icon_view: a #GtkIconView
5479  *
5480  * Returns the value of the ::spacing property.
5481  *
5482  * Return value: the space between cells
5483  *
5484  * Since: 2.6
5485  */
5486 gint
5487 gtk_icon_view_get_spacing (GtkIconView *icon_view)
5488 {
5489   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5490
5491   return icon_view->priv->spacing;
5492 }
5493
5494 /**
5495  * gtk_icon_view_set_row_spacing:
5496  * @icon_view: a #GtkIconView
5497  * @row_spacing: the row spacing
5498  *
5499  * Sets the ::row-spacing property which specifies the space
5500  * which is inserted between the rows of the icon view.
5501  *
5502  * Since: 2.6
5503  */
5504 void
5505 gtk_icon_view_set_row_spacing (GtkIconView *icon_view,
5506                                gint         row_spacing)
5507 {
5508   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5509
5510   if (icon_view->priv->row_spacing != row_spacing)
5511     {
5512       icon_view->priv->row_spacing = row_spacing;
5513
5514       gtk_icon_view_stop_editing (icon_view, TRUE);
5515       gtk_icon_view_invalidate_sizes (icon_view);
5516       gtk_icon_view_queue_layout (icon_view);
5517
5518       g_object_notify (G_OBJECT (icon_view), "row-spacing");
5519     }
5520 }
5521
5522 /**
5523  * gtk_icon_view_get_row_spacing:
5524  * @icon_view: a #GtkIconView
5525  *
5526  * Returns the value of the ::row-spacing property.
5527  *
5528  * Return value: the space between rows
5529  *
5530  * Since: 2.6
5531  */
5532 gint
5533 gtk_icon_view_get_row_spacing (GtkIconView *icon_view)
5534 {
5535   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5536
5537   return icon_view->priv->row_spacing;
5538 }
5539
5540 /**
5541  * gtk_icon_view_set_column_spacing:
5542  * @icon_view: a #GtkIconView
5543  * @column_spacing: the column spacing
5544  *
5545  * Sets the ::column-spacing property which specifies the space
5546  * which is inserted between the columns of the icon view.
5547  *
5548  * Since: 2.6
5549  */
5550 void
5551 gtk_icon_view_set_column_spacing (GtkIconView *icon_view,
5552                                   gint         column_spacing)
5553 {
5554   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5555
5556   if (icon_view->priv->column_spacing != column_spacing)
5557     {
5558       icon_view->priv->column_spacing = column_spacing;
5559
5560       gtk_icon_view_stop_editing (icon_view, TRUE);
5561       gtk_icon_view_invalidate_sizes (icon_view);
5562       gtk_icon_view_queue_layout (icon_view);
5563
5564       g_object_notify (G_OBJECT (icon_view), "column-spacing");
5565     }
5566 }
5567
5568 /**
5569  * gtk_icon_view_get_column_spacing:
5570  * @icon_view: a #GtkIconView
5571  *
5572  * Returns the value of the ::column-spacing property.
5573  *
5574  * Return value: the space between columns
5575  *
5576  * Since: 2.6
5577  */
5578 gint
5579 gtk_icon_view_get_column_spacing (GtkIconView *icon_view)
5580 {
5581   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5582
5583   return icon_view->priv->column_spacing;
5584 }
5585
5586 /**
5587  * gtk_icon_view_set_margin:
5588  * @icon_view: a #GtkIconView
5589  * @margin: the margin
5590  *
5591  * Sets the ::margin property which specifies the space
5592  * which is inserted at the top, bottom, left and right
5593  * of the icon view.
5594  *
5595  * Since: 2.6
5596  */
5597 void
5598 gtk_icon_view_set_margin (GtkIconView *icon_view,
5599                           gint         margin)
5600 {
5601   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
5602
5603   if (icon_view->priv->margin != margin)
5604     {
5605       icon_view->priv->margin = margin;
5606
5607       gtk_icon_view_stop_editing (icon_view, TRUE);
5608       gtk_icon_view_invalidate_sizes (icon_view);
5609       gtk_icon_view_queue_layout (icon_view);
5610
5611       g_object_notify (G_OBJECT (icon_view), "margin");
5612     }
5613 }
5614
5615 /**
5616  * gtk_icon_view_get_margin:
5617  * @icon_view: a #GtkIconView
5618  *
5619  * Returns the value of the ::margin property.
5620  *
5621  * Return value: the space at the borders
5622  *
5623  * Since: 2.6
5624  */
5625 gint
5626 gtk_icon_view_get_margin (GtkIconView *icon_view)
5627 {
5628   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
5629
5630   return icon_view->priv->margin;
5631 }
5632
5633
5634 /* Get/set whether drag_motion requested the drag data and
5635  * drag_data_received should thus not actually insert the data,
5636  * since the data doesn't result from a drop.
5637  */
5638 static void
5639 set_status_pending (GdkDragContext *context,
5640                     GdkDragAction   suggested_action)
5641 {
5642   g_object_set_data (G_OBJECT (context),
5643                      I_("gtk-icon-view-status-pending"),
5644                      GINT_TO_POINTER (suggested_action));
5645 }
5646
5647 static GdkDragAction
5648 get_status_pending (GdkDragContext *context)
5649 {
5650   return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
5651                                              "gtk-icon-view-status-pending"));
5652 }
5653
5654 static void
5655 unset_reorderable (GtkIconView *icon_view)
5656 {
5657   if (icon_view->priv->reorderable)
5658     {
5659       icon_view->priv->reorderable = FALSE;
5660       g_object_notify (G_OBJECT (icon_view), "reorderable");
5661     }
5662 }
5663
5664 static void
5665 clear_source_info (GtkIconView *icon_view)
5666 {
5667   if (icon_view->priv->source_targets)
5668     gtk_target_list_unref (icon_view->priv->source_targets);
5669   icon_view->priv->source_targets = NULL;
5670
5671   icon_view->priv->source_set = FALSE;
5672 }
5673
5674 static void
5675 clear_dest_info (GtkIconView *icon_view)
5676 {
5677   if (icon_view->priv->dest_targets)
5678     gtk_target_list_unref (icon_view->priv->dest_targets);
5679   icon_view->priv->dest_targets = NULL;
5680
5681   icon_view->priv->dest_set = FALSE;
5682 }
5683
5684 static void
5685 set_source_row (GdkDragContext *context,
5686                 GtkTreeModel   *model,
5687                 GtkTreePath    *source_row)
5688 {
5689   if (source_row)
5690     g_object_set_data_full (G_OBJECT (context),
5691                             I_("gtk-icon-view-source-row"),
5692                             gtk_tree_row_reference_new (model, source_row),
5693                             (GDestroyNotify) gtk_tree_row_reference_free);
5694   else
5695     g_object_set_data_full (G_OBJECT (context),
5696                             I_("gtk-icon-view-source-row"),
5697                             NULL, NULL);
5698 }
5699
5700 static GtkTreePath*
5701 get_source_row (GdkDragContext *context)
5702 {
5703   GtkTreeRowReference *ref;
5704
5705   ref = g_object_get_data (G_OBJECT (context), "gtk-icon-view-source-row");
5706
5707   if (ref)
5708     return gtk_tree_row_reference_get_path (ref);
5709   else
5710     return NULL;
5711 }
5712
5713 typedef struct
5714 {
5715   GtkTreeRowReference *dest_row;
5716   gboolean             empty_view_drop;
5717   gboolean             drop_append_mode;
5718 } DestRow;
5719
5720 static void
5721 dest_row_free (gpointer data)
5722 {
5723   DestRow *dr = (DestRow *)data;
5724
5725   gtk_tree_row_reference_free (dr->dest_row);
5726   g_free (dr);
5727 }
5728
5729 static void
5730 set_dest_row (GdkDragContext *context,
5731               GtkTreeModel   *model,
5732               GtkTreePath    *dest_row,
5733               gboolean        empty_view_drop,
5734               gboolean        drop_append_mode)
5735 {
5736   DestRow *dr;
5737
5738   if (!dest_row)
5739     {
5740       g_object_set_data_full (G_OBJECT (context),
5741                               I_("gtk-icon-view-dest-row"),
5742                               NULL, NULL);
5743       return;
5744     }
5745
5746   dr = g_new0 (DestRow, 1);
5747
5748   dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
5749   dr->empty_view_drop = empty_view_drop;
5750   dr->drop_append_mode = drop_append_mode;
5751   g_object_set_data_full (G_OBJECT (context),
5752                           I_("gtk-icon-view-dest-row"),
5753                           dr, (GDestroyNotify) dest_row_free);
5754 }
5755
5756 static GtkTreePath*
5757 get_dest_row (GdkDragContext *context)
5758 {
5759   DestRow *dr;
5760
5761   dr = g_object_get_data (G_OBJECT (context), "gtk-icon-view-dest-row");
5762
5763   if (dr)
5764     {
5765       GtkTreePath *path = NULL;
5766
5767       if (dr->dest_row)
5768         path = gtk_tree_row_reference_get_path (dr->dest_row);
5769       else if (dr->empty_view_drop)
5770         path = gtk_tree_path_new_from_indices (0, -1);
5771       else
5772         path = NULL;
5773
5774       if (path && dr->drop_append_mode)
5775         gtk_tree_path_next (path);
5776
5777       return path;
5778     }
5779   else
5780     return NULL;
5781 }
5782
5783 static gboolean
5784 check_model_dnd (GtkTreeModel *model,
5785                  GType         required_iface,
5786                  const gchar  *signal)
5787 {
5788   if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
5789     {
5790       g_warning ("You must override the default '%s' handler "
5791                  "on GtkIconView when using models that don't support "
5792                  "the %s interface and enabling drag-and-drop. The simplest way to do this "
5793                  "is to connect to '%s' and call "
5794                  "g_signal_stop_emission_by_name() in your signal handler to prevent "
5795                  "the default handler from running. Look at the source code "
5796                  "for the default handler in gtkiconview.c to get an idea what "
5797                  "your handler should do. (gtkiconview.c is in the GTK+ source "
5798                  "code.) If you're using GTK+ from a language other than C, "
5799                  "there may be a more natural way to override default handlers, e.g. via derivation.",
5800                  signal, g_type_name (required_iface), signal);
5801       return FALSE;
5802     }
5803   else
5804     return TRUE;
5805 }
5806
5807 static void
5808 remove_scroll_timeout (GtkIconView *icon_view)
5809 {
5810   if (icon_view->priv->scroll_timeout_id != 0)
5811     {
5812       g_source_remove (icon_view->priv->scroll_timeout_id);
5813
5814       icon_view->priv->scroll_timeout_id = 0;
5815     }
5816 }
5817
5818 static void
5819 gtk_icon_view_autoscroll (GtkIconView *icon_view)
5820 {
5821   gint px, py, x, y, width, height;
5822   gint hoffset, voffset;
5823   gfloat value;
5824
5825   gdk_window_get_pointer (GTK_WIDGET (icon_view)->window, &px, &py, NULL);
5826   gdk_window_get_geometry (GTK_WIDGET (icon_view)->window, &x, &y, &width, &height, NULL);
5827
5828   /* see if we are near the edge. */
5829   voffset = py - (y + 2 * SCROLL_EDGE_SIZE);
5830   if (voffset > 0)
5831     voffset = MAX (py - (y + height - 2 * SCROLL_EDGE_SIZE), 0);
5832
5833   hoffset = px - (x + 2 * SCROLL_EDGE_SIZE);
5834   if (hoffset > 0)
5835     hoffset = MAX (px - (x + width - 2 * SCROLL_EDGE_SIZE), 0);
5836
5837   if (voffset != 0)
5838     {
5839       value = CLAMP (icon_view->priv->vadjustment->value + voffset,
5840                      icon_view->priv->vadjustment->lower,
5841                      icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->page_size);
5842       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
5843     }
5844   if (hoffset != 0)
5845     {
5846       value = CLAMP (icon_view->priv->hadjustment->value + hoffset,
5847                      icon_view->priv->hadjustment->lower,
5848                      icon_view->priv->hadjustment->upper - icon_view->priv->hadjustment->page_size);
5849       gtk_adjustment_set_value (icon_view->priv->hadjustment, value);
5850     }
5851 }
5852
5853
5854 static gboolean
5855 drag_scroll_timeout (gpointer data)
5856 {
5857   GtkIconView *icon_view = GTK_ICON_VIEW (data);
5858
5859   GDK_THREADS_ENTER ();
5860
5861   gtk_icon_view_autoscroll (icon_view);
5862
5863   GDK_THREADS_LEAVE ();
5864
5865   return TRUE;
5866 }
5867
5868
5869 static gboolean
5870 set_destination (GtkIconView    *icon_view,
5871                  GdkDragContext *context,
5872                  gint            x,
5873                  gint            y,
5874                  GdkDragAction  *suggested_action,
5875                  GdkAtom        *target)
5876 {
5877   GtkWidget *widget;
5878   GtkTreePath *path = NULL;
5879   GtkIconViewDropPosition pos;
5880   GtkIconViewDropPosition old_pos;
5881   GtkTreePath *old_dest_path = NULL;
5882   gboolean can_drop = FALSE;
5883
5884   widget = GTK_WIDGET (icon_view);
5885
5886   *suggested_action = 0;
5887   *target = GDK_NONE;
5888
5889   if (!icon_view->priv->dest_set)
5890     {
5891       /* someone unset us as a drag dest, note that if
5892        * we return FALSE drag_leave isn't called
5893        */
5894
5895       gtk_icon_view_set_drag_dest_item (icon_view,
5896                                         NULL,
5897                                         GTK_ICON_VIEW_DROP_LEFT);
5898
5899       remove_scroll_timeout (GTK_ICON_VIEW (widget));
5900
5901       return FALSE; /* no longer a drop site */
5902     }
5903
5904   *target = gtk_drag_dest_find_target (widget, context, icon_view->priv->dest_targets);
5905   if (*target == GDK_NONE)
5906     return FALSE;
5907
5908   if (!gtk_icon_view_get_dest_item_at_pos (icon_view, x, y, &path, &pos))
5909     {
5910       gint n_children;
5911       GtkTreeModel *model;
5912
5913       /* the row got dropped on empty space, let's setup a special case
5914        */
5915
5916       if (path)
5917         gtk_tree_path_free (path);
5918
5919       model = gtk_icon_view_get_model (icon_view);
5920
5921       n_children = gtk_tree_model_iter_n_children (model, NULL);
5922       if (n_children)
5923         {
5924           pos = GTK_ICON_VIEW_DROP_BELOW;
5925           path = gtk_tree_path_new_from_indices (n_children - 1, -1);
5926         }
5927       else
5928         {
5929           pos = GTK_ICON_VIEW_DROP_ABOVE;
5930           path = gtk_tree_path_new_from_indices (0, -1);
5931         }
5932
5933       can_drop = TRUE;
5934
5935       goto out;
5936     }
5937
5938   g_assert (path);
5939
5940   gtk_icon_view_get_drag_dest_item (icon_view,
5941                                     &old_dest_path,
5942                                     &old_pos);
5943
5944   if (old_dest_path)
5945     gtk_tree_path_free (old_dest_path);
5946
5947   if (TRUE /* FIXME if the location droppable predicate */)
5948     {
5949       can_drop = TRUE;
5950     }
5951
5952 out:
5953   if (can_drop)
5954     {
5955       GtkWidget *source_widget;
5956
5957       *suggested_action = context->suggested_action;
5958       source_widget = gtk_drag_get_source_widget (context);
5959
5960       if (source_widget == widget)
5961         {
5962           /* Default to MOVE, unless the user has
5963            * pressed ctrl or shift to affect available actions
5964            */
5965           if ((context->actions & GDK_ACTION_MOVE) != 0)
5966             *suggested_action = GDK_ACTION_MOVE;
5967         }
5968
5969       gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget),
5970                                         path, pos);
5971     }
5972   else
5973     {
5974       /* can't drop here */
5975       gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget),
5976                                         NULL,
5977                                         GTK_ICON_VIEW_DROP_LEFT);
5978     }
5979
5980   if (path)
5981     gtk_tree_path_free (path);
5982
5983   return TRUE;
5984 }
5985
5986 static GtkTreePath*
5987 get_logical_destination (GtkIconView *icon_view,
5988                          gboolean    *drop_append_mode)
5989 {
5990   /* adjust path to point to the row the drop goes in front of */
5991   GtkTreePath *path = NULL;
5992   GtkIconViewDropPosition pos;
5993
5994   *drop_append_mode = FALSE;
5995
5996   gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos);
5997
5998   if (path == NULL)
5999     return NULL;
6000
6001   if (pos == GTK_ICON_VIEW_DROP_RIGHT ||
6002       pos == GTK_ICON_VIEW_DROP_BELOW)
6003     {
6004       GtkTreeIter iter;
6005       GtkTreeModel *model = icon_view->priv->model;
6006
6007       if (!gtk_tree_model_get_iter (model, &iter, path) ||
6008           !gtk_tree_model_iter_next (model, &iter))
6009         *drop_append_mode = TRUE;
6010       else
6011         {
6012           *drop_append_mode = FALSE;
6013           gtk_tree_path_next (path);
6014         }
6015     }
6016
6017   return path;
6018 }
6019
6020 static gboolean
6021 gtk_icon_view_maybe_begin_drag (GtkIconView    *icon_view,
6022                                 GdkEventMotion *event)
6023 {
6024   GdkDragContext *context;
6025   GtkTreePath *path = NULL;
6026   gint button;
6027   GtkTreeModel *model;
6028   gboolean retval = FALSE;
6029
6030   if (!icon_view->priv->source_set)
6031     goto out;
6032
6033   if (icon_view->priv->pressed_button < 0)
6034     goto out;
6035
6036   if (!gtk_drag_check_threshold (GTK_WIDGET (icon_view),
6037                                  icon_view->priv->press_start_x,
6038                                  icon_view->priv->press_start_y,
6039                                  event->x, event->y))
6040     goto out;
6041
6042   model = gtk_icon_view_get_model (icon_view);
6043
6044   if (model == NULL)
6045     goto out;
6046
6047   button = icon_view->priv->pressed_button;
6048   icon_view->priv->pressed_button = -1;
6049
6050   path = gtk_icon_view_get_path_at_pos (icon_view,
6051                                         icon_view->priv->press_start_x,
6052                                         icon_view->priv->press_start_y);
6053
6054   if (path == NULL)
6055     goto out;
6056
6057   if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
6058       !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
6059                                            path))
6060     goto out;
6061
6062   /* FIXME Check whether we're a start button, if not return FALSE and
6063    * free path
6064    */
6065
6066   /* Now we can begin the drag */
6067
6068   retval = TRUE;
6069
6070   context = gtk_drag_begin (GTK_WIDGET (icon_view),
6071                             icon_view->priv->source_targets,
6072                             icon_view->priv->source_actions,
6073                             button,
6074                             (GdkEvent*)event);
6075
6076   set_source_row (context, model, path);
6077
6078  out:
6079   if (path)
6080     gtk_tree_path_free (path);
6081
6082   return retval;
6083 }
6084
6085 /* Source side drag signals */
6086 static void
6087 gtk_icon_view_drag_begin (GtkWidget      *widget,
6088                           GdkDragContext *context)
6089 {
6090   GtkIconView *icon_view;
6091   GtkIconViewItem *item;
6092   GdkPixmap *icon;
6093   gint x, y;
6094   GtkTreePath *path;
6095
6096   icon_view = GTK_ICON_VIEW (widget);
6097
6098   /* if the user uses a custom DnD impl, we don't set the icon here */
6099   if (!icon_view->priv->dest_set && !icon_view->priv->source_set)
6100     return;
6101
6102   item = gtk_icon_view_get_item_at_coords (icon_view,
6103                                            icon_view->priv->press_start_x,
6104                                            icon_view->priv->press_start_y,
6105                                            TRUE,
6106                                            NULL);
6107
6108   g_return_if_fail (item != NULL);
6109
6110   x = icon_view->priv->press_start_x - item->x + 1;
6111   y = icon_view->priv->press_start_y - item->y + 1;
6112
6113   path = gtk_tree_path_new_from_indices (item->index, -1);
6114   icon = gtk_icon_view_create_drag_icon (icon_view, path);
6115   gtk_tree_path_free (path);
6116
6117   gtk_drag_set_icon_pixmap (context,
6118                             gdk_drawable_get_colormap (icon),
6119                             icon,
6120                             NULL,
6121                             x, y);
6122
6123   g_object_unref (icon);
6124 }
6125
6126 static void
6127 gtk_icon_view_drag_end (GtkWidget      *widget,
6128                         GdkDragContext *context)
6129 {
6130   /* do nothing */
6131 }
6132
6133 static void
6134 gtk_icon_view_drag_data_get (GtkWidget        *widget,
6135                              GdkDragContext   *context,
6136                              GtkSelectionData *selection_data,
6137                              guint             info,
6138                              guint             time)
6139 {
6140   GtkIconView *icon_view;
6141   GtkTreeModel *model;
6142   GtkTreePath *source_row;
6143
6144   icon_view = GTK_ICON_VIEW (widget);
6145   model = gtk_icon_view_get_model (icon_view);
6146
6147   if (model == NULL)
6148     return;
6149
6150   if (!icon_view->priv->dest_set)
6151     return;
6152
6153   source_row = get_source_row (context);
6154
6155   if (source_row == NULL)
6156     return;
6157
6158   /* We can implement the GTK_TREE_MODEL_ROW target generically for
6159    * any model; for DragSource models there are some other targets
6160    * we also support.
6161    */
6162
6163   if (GTK_IS_TREE_DRAG_SOURCE (model) &&
6164       gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
6165                                           source_row,
6166                                           selection_data))
6167     goto done;
6168
6169   /* If drag_data_get does nothing, try providing row data. */
6170   if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
6171     gtk_tree_set_row_drag_data (selection_data,
6172                                 model,
6173                                 source_row);
6174
6175  done:
6176   gtk_tree_path_free (source_row);
6177 }
6178
6179 static void
6180 gtk_icon_view_drag_data_delete (GtkWidget      *widget,
6181                                 GdkDragContext *context)
6182 {
6183   GtkTreeModel *model;
6184   GtkIconView *icon_view;
6185   GtkTreePath *source_row;
6186
6187   icon_view = GTK_ICON_VIEW (widget);
6188   model = gtk_icon_view_get_model (icon_view);
6189
6190   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
6191     return;
6192
6193   if (!icon_view->priv->dest_set)
6194     return;
6195
6196   source_row = get_source_row (context);
6197
6198   if (source_row == NULL)
6199     return;
6200
6201   gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
6202                                          source_row);
6203
6204   gtk_tree_path_free (source_row);
6205
6206   set_source_row (context, NULL, NULL);
6207 }
6208
6209 /* Target side drag signals */
6210 static void
6211 gtk_icon_view_drag_leave (GtkWidget      *widget,
6212                           GdkDragContext *context,
6213                           guint           time)
6214 {
6215   GtkIconView *icon_view;
6216
6217   icon_view = GTK_ICON_VIEW (widget);
6218
6219   /* unset any highlight row */
6220   gtk_icon_view_set_drag_dest_item (icon_view,
6221                                     NULL,
6222                                     GTK_ICON_VIEW_DROP_LEFT);
6223
6224   remove_scroll_timeout (icon_view);
6225 }
6226
6227 static gboolean
6228 gtk_icon_view_drag_motion (GtkWidget      *widget,
6229                            GdkDragContext *context,
6230                            gint            x,
6231                            gint            y,
6232                            guint           time)
6233 {
6234   GtkTreePath *path = NULL;
6235   GtkIconViewDropPosition pos;
6236   GtkIconView *icon_view;
6237   GdkDragAction suggested_action = 0;
6238   GdkAtom target;
6239   gboolean empty;
6240
6241   icon_view = GTK_ICON_VIEW (widget);
6242
6243   if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
6244     return FALSE;
6245
6246   gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos);
6247
6248   /* we only know this *after* set_desination_row */
6249   empty = icon_view->priv->empty_view_drop;
6250
6251   if (path == NULL && !empty)
6252     {
6253       /* Can't drop here. */
6254       gdk_drag_status (context, 0, time);
6255     }
6256   else
6257     {
6258       if (icon_view->priv->scroll_timeout_id == 0)
6259         {
6260           icon_view->priv->scroll_timeout_id =
6261             g_timeout_add (50, drag_scroll_timeout, icon_view);
6262         }
6263
6264       if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
6265         {
6266           /* Request data so we can use the source row when
6267            * determining whether to accept the drop
6268            */
6269           set_status_pending (context, suggested_action);
6270           gtk_drag_get_data (widget, context, target, time);
6271         }
6272       else
6273         {
6274           set_status_pending (context, 0);
6275           gdk_drag_status (context, suggested_action, time);
6276         }
6277     }
6278
6279   if (path)
6280     gtk_tree_path_free (path);
6281
6282   return TRUE;
6283 }
6284
6285 static gboolean
6286 gtk_icon_view_drag_drop (GtkWidget      *widget,
6287                          GdkDragContext *context,
6288                          gint            x,
6289                          gint            y,
6290                          guint           time)
6291 {
6292   GtkIconView *icon_view;
6293   GtkTreePath *path;
6294   GdkDragAction suggested_action = 0;
6295   GdkAtom target = GDK_NONE;
6296   GtkTreeModel *model;
6297   gboolean drop_append_mode;
6298
6299   icon_view = GTK_ICON_VIEW (widget);
6300   model = gtk_icon_view_get_model (icon_view);
6301
6302   remove_scroll_timeout (GTK_ICON_VIEW (widget));
6303
6304   if (!icon_view->priv->dest_set)
6305     return FALSE;
6306
6307   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
6308     return FALSE;
6309
6310   if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
6311     return FALSE;
6312
6313   path = get_logical_destination (icon_view, &drop_append_mode);
6314
6315   if (target != GDK_NONE && path != NULL)
6316     {
6317       /* in case a motion had requested drag data, change things so we
6318        * treat drag data receives as a drop.
6319        */
6320       set_status_pending (context, 0);
6321       set_dest_row (context, model, path,
6322                     icon_view->priv->empty_view_drop, drop_append_mode);
6323     }
6324
6325   if (path)
6326     gtk_tree_path_free (path);
6327
6328   /* Unset this thing */
6329   gtk_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT);
6330
6331   if (target != GDK_NONE)
6332     {
6333       gtk_drag_get_data (widget, context, target, time);
6334       return TRUE;
6335     }
6336   else
6337     return FALSE;
6338 }
6339
6340 static void
6341 gtk_icon_view_drag_data_received (GtkWidget        *widget,
6342                                   GdkDragContext   *context,
6343                                   gint              x,
6344                                   gint              y,
6345                                   GtkSelectionData *selection_data,
6346                                   guint             info,
6347                                   guint             time)
6348 {
6349   GtkTreePath *path;
6350   gboolean accepted = FALSE;
6351   GtkTreeModel *model;
6352   GtkIconView *icon_view;
6353   GtkTreePath *dest_row;
6354   GdkDragAction suggested_action;
6355   gboolean drop_append_mode;
6356
6357   icon_view = GTK_ICON_VIEW (widget);
6358   model = gtk_icon_view_get_model (icon_view);
6359
6360   if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
6361     return;
6362
6363   if (!icon_view->priv->dest_set)
6364     return;
6365
6366   suggested_action = get_status_pending (context);
6367
6368   if (suggested_action)
6369     {
6370       /* We are getting this data due to a request in drag_motion,
6371        * rather than due to a request in drag_drop, so we are just
6372        * supposed to call drag_status, not actually paste in the
6373        * data.
6374        */
6375       path = get_logical_destination (icon_view, &drop_append_mode);
6376
6377       if (path == NULL)
6378         suggested_action = 0;
6379
6380       if (suggested_action)
6381         {
6382           if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
6383                                                      path,
6384                                                      selection_data))
6385             suggested_action = 0;
6386         }
6387
6388       gdk_drag_status (context, suggested_action, time);
6389
6390       if (path)
6391         gtk_tree_path_free (path);
6392
6393       /* If you can't drop, remove user drop indicator until the next motion */
6394       if (suggested_action == 0)
6395         gtk_icon_view_set_drag_dest_item (icon_view,
6396                                           NULL,
6397                                           GTK_ICON_VIEW_DROP_LEFT);
6398       return;
6399     }
6400
6401
6402   dest_row = get_dest_row (context);
6403
6404   if (dest_row == NULL)
6405     return;
6406
6407   if (selection_data->length >= 0)
6408     {
6409       if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
6410                                                  dest_row,
6411                                                  selection_data))
6412         accepted = TRUE;
6413     }
6414
6415   gtk_drag_finish (context,
6416                    accepted,
6417                    (context->action == GDK_ACTION_MOVE),
6418                    time);
6419
6420   gtk_tree_path_free (dest_row);
6421
6422   /* drop dest_row */
6423   set_dest_row (context, NULL, NULL, FALSE, FALSE);
6424 }
6425
6426 /* Drag-and-Drop support */
6427 /**
6428  * gtk_icon_view_enable_model_drag_source:
6429  * @icon_view: a #GtkIconTreeView
6430  * @start_button_mask: Mask of allowed buttons to start drag
6431  * @targets: the table of targets that the drag will support
6432  * @n_targets: the number of items in @targets
6433  * @actions: the bitmask of possible actions for a drag from this
6434  *    widget
6435  *
6436  * Turns @icon_view into a drag source for automatic DND.
6437  *
6438  * Since: 2.8
6439  **/
6440 void
6441 gtk_icon_view_enable_model_drag_source (GtkIconView              *icon_view,
6442                                         GdkModifierType           start_button_mask,
6443                                         const GtkTargetEntry     *targets,
6444                                         gint                      n_targets,
6445                                         GdkDragAction             actions)
6446 {
6447   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6448
6449   gtk_drag_source_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions);
6450
6451   clear_source_info (icon_view);
6452   icon_view->priv->start_button_mask = start_button_mask;
6453   icon_view->priv->source_targets = gtk_target_list_new (targets, n_targets);
6454   icon_view->priv->source_actions = actions;
6455
6456   icon_view->priv->source_set = TRUE;
6457
6458   unset_reorderable (icon_view);
6459 }
6460
6461 /**
6462  * gtk_icon_view_enable_model_drag_dest:
6463  * @icon_view: a #GtkIconView
6464  * @targets: the table of targets that the drag will support
6465  * @n_targets: the number of items in @targets
6466  * @actions: the bitmask of possible actions for a drag to this
6467  *    widget
6468  *
6469  * Turns @icon_view into a drop destination for automatic DND.
6470  *
6471  * Since: 2.8
6472  **/
6473 void
6474 gtk_icon_view_enable_model_drag_dest (GtkIconView          *icon_view,
6475                                       const GtkTargetEntry *targets,
6476                                       gint                  n_targets,
6477                                       GdkDragAction         actions)
6478 {
6479   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6480
6481   gtk_drag_dest_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions);
6482
6483   clear_dest_info (icon_view);
6484
6485   icon_view->priv->dest_targets = gtk_target_list_new (targets, n_targets);
6486   icon_view->priv->dest_actions = actions;
6487
6488   icon_view->priv->dest_set = TRUE;
6489
6490   unset_reorderable (icon_view);
6491 }
6492
6493 /**
6494  * gtk_icon_view_unset_model_drag_source:
6495  * @icon_view: a #GtkIconView
6496  *
6497  * Undoes the effect of gtk_icon_view_enable_model_drag_source().
6498  *
6499  * Since: 2.8
6500  **/
6501 void
6502 gtk_icon_view_unset_model_drag_source (GtkIconView *icon_view)
6503 {
6504   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6505
6506   if (icon_view->priv->source_set)
6507     {
6508       gtk_drag_source_unset (GTK_WIDGET (icon_view));
6509       clear_source_info (icon_view);
6510     }
6511
6512   unset_reorderable (icon_view);
6513 }
6514
6515 /**
6516  * gtk_icon_view_unset_model_drag_dest:
6517  * @icon_view: a #GtkIconView
6518  *
6519  * Undoes the effect of gtk_icon_view_enable_model_drag_dest().
6520  *
6521  * Since: 2.8
6522  **/
6523 void
6524 gtk_icon_view_unset_model_drag_dest (GtkIconView *icon_view)
6525 {
6526   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6527
6528   if (icon_view->priv->dest_set)
6529     {
6530       gtk_drag_dest_unset (GTK_WIDGET (icon_view));
6531       clear_dest_info (icon_view);
6532     }
6533
6534   unset_reorderable (icon_view);
6535 }
6536
6537 /* These are useful to implement your own custom stuff. */
6538 /**
6539  * gtk_icon_view_set_drag_dest_item:
6540  * @icon_view: a #GtkIconView
6541  * @path: The path of the item to highlight, or %NULL.
6542  * @pos: Specifies where to drop, relative to the item
6543  *
6544  * Sets the item that is highlighted for feedback.
6545  *
6546  * Since: 2.8
6547  */
6548 void
6549 gtk_icon_view_set_drag_dest_item (GtkIconView              *icon_view,
6550                                   GtkTreePath              *path,
6551                                   GtkIconViewDropPosition   pos)
6552 {
6553   /* Note; this function is exported to allow a custom DND
6554    * implementation, so it can't touch TreeViewDragInfo
6555    */
6556
6557   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6558
6559   if (icon_view->priv->dest_item)
6560     {
6561       GtkTreePath *current_path;
6562       current_path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
6563       gtk_tree_row_reference_free (icon_view->priv->dest_item);
6564       icon_view->priv->dest_item = NULL;
6565
6566       gtk_icon_view_queue_draw_path (icon_view, current_path);
6567       gtk_tree_path_free (current_path);
6568     }
6569
6570   /* special case a drop on an empty model */
6571   icon_view->priv->empty_view_drop = FALSE;
6572   if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
6573       && gtk_tree_path_get_depth (path) == 1
6574       && gtk_tree_path_get_indices (path)[0] == 0)
6575     {
6576       gint n_children;
6577
6578       n_children = gtk_tree_model_iter_n_children (icon_view->priv->model,
6579                                                    NULL);
6580
6581       if (n_children == 0)
6582         icon_view->priv->empty_view_drop = TRUE;
6583     }
6584
6585   icon_view->priv->dest_pos = pos;
6586
6587   if (path)
6588     {
6589       icon_view->priv->dest_item =
6590         gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view),
6591                                           icon_view->priv->model, path);
6592
6593       gtk_icon_view_queue_draw_path (icon_view, path);
6594     }
6595 }
6596
6597 /**
6598  * gtk_icon_view_get_drag_dest_item:
6599  * @icon_view: a #GtkIconView
6600  * @path: Return location for the path of the highlighted item, or %NULL.
6601  * @pos: Return location for the drop position, or %NULL
6602  *
6603  * Gets information about the item that is highlighted for feedback.
6604  *
6605  * Since: 2.8
6606  **/
6607 void
6608 gtk_icon_view_get_drag_dest_item (GtkIconView              *icon_view,
6609                                   GtkTreePath             **path,
6610                                   GtkIconViewDropPosition  *pos)
6611 {
6612   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6613
6614   if (path)
6615     {
6616       if (icon_view->priv->dest_item)
6617         *path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
6618       else
6619         *path = NULL;
6620     }
6621
6622   if (pos)
6623     *pos = icon_view->priv->dest_pos;
6624 }
6625
6626 /**
6627  * gtk_icon_view_get_dest_item_at_pos:
6628  * @icon_view: a #GtkIconView
6629  * @drag_x: the position to determine the destination item for
6630  * @drag_y: the position to determine the destination item for
6631  * @path: Return location for the path of the item, or %NULL.
6632  * @pos: Return location for the drop position, or %NULL
6633  *
6634  * Determines the destination item for a given position.
6635  *
6636  * Return value: whether there is an item at the given position.
6637  *
6638  * Since: 2.8
6639  **/
6640 gboolean
6641 gtk_icon_view_get_dest_item_at_pos (GtkIconView              *icon_view,
6642                                     gint                      drag_x,
6643                                     gint                      drag_y,
6644                                     GtkTreePath             **path,
6645                                     GtkIconViewDropPosition  *pos)
6646 {
6647   GtkIconViewItem *item;
6648
6649   /* Note; this function is exported to allow a custom DND
6650    * implementation, so it can't touch TreeViewDragInfo
6651    */
6652
6653   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
6654   g_return_val_if_fail (drag_x >= 0, FALSE);
6655   g_return_val_if_fail (drag_y >= 0, FALSE);
6656   g_return_val_if_fail (icon_view->priv->bin_window != NULL, FALSE);
6657
6658
6659   if (path)
6660     *path = NULL;
6661
6662   item = gtk_icon_view_get_item_at_coords (icon_view,
6663                                            drag_x + icon_view->priv->hadjustment->value,
6664                                            drag_y + icon_view->priv->vadjustment->value,
6665                                            FALSE, NULL);
6666
6667   if (item == NULL)
6668     return FALSE;
6669
6670   if (path)
6671     *path = gtk_tree_path_new_from_indices (item->index, -1);
6672
6673   if (pos)
6674     {
6675       if (drag_x < item->x + item->width / 4)
6676         *pos = GTK_ICON_VIEW_DROP_LEFT;
6677       else if (drag_x > item->x + item->width * 3 / 4)
6678         *pos = GTK_ICON_VIEW_DROP_RIGHT;
6679       else if (drag_y < item->y + item->height / 4)
6680         *pos = GTK_ICON_VIEW_DROP_ABOVE;
6681       else if (drag_y > item->y + item->height * 3 / 4)
6682         *pos = GTK_ICON_VIEW_DROP_BELOW;
6683       else
6684         *pos = GTK_ICON_VIEW_DROP_INTO;
6685     }
6686
6687   return TRUE;
6688 }
6689
6690 /**
6691  * gtk_icon_view_create_drag_icon:
6692  * @icon_view: a #GtkIconView
6693  * @path: a #GtkTreePath in @icon_view
6694  *
6695  * Creates a #GdkPixmap representation of the item at @path.
6696  * This image is used for a drag icon.
6697  *
6698  * Return value: a newly-allocated pixmap of the drag icon.
6699  *
6700  * Since: 2.8
6701  **/
6702 GdkPixmap *
6703 gtk_icon_view_create_drag_icon (GtkIconView *icon_view,
6704                                 GtkTreePath *path)
6705 {
6706   GtkWidget *widget;
6707   cairo_t *cr;
6708   GdkPixmap *drawable;
6709   GList *l;
6710   gint index;
6711   GdkRectangle area;
6712
6713   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
6714   g_return_val_if_fail (path != NULL, NULL);
6715
6716   widget = GTK_WIDGET (icon_view);
6717
6718   if (!GTK_WIDGET_REALIZED (widget))
6719     return NULL;
6720
6721   index = gtk_tree_path_get_indices (path)[0];
6722
6723   for (l = icon_view->priv->items; l; l = l->next)
6724     {
6725       GtkIconViewItem *item = l->data;
6726
6727       if (index == item->index)
6728         {
6729           drawable = gdk_pixmap_new (icon_view->priv->bin_window,
6730                                      item->width + 2,
6731                                      item->height + 2,
6732                                      -1);
6733
6734           cr = gdk_cairo_create (drawable);
6735           cairo_set_line_width (cr, 1.);
6736
6737           gdk_cairo_set_source_color
6738             (cr, &widget->style->base[GTK_WIDGET_STATE (widget)]);
6739           cairo_rectangle (cr, 0, 0, item->width + 2, item->height + 2);
6740           cairo_fill (cr);
6741
6742           area.x = 0;
6743           area.y = 0;
6744           area.width = item->width;
6745           area.height = item->height;
6746
6747           gtk_icon_view_paint_item (icon_view, cr, item, &area,
6748                                     drawable, 1, 1, FALSE);
6749
6750           cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
6751           cairo_rectangle (cr, 0.5, 0.5, item->width + 1, item->height + 1);
6752           cairo_stroke (cr);
6753
6754           cairo_destroy (cr);
6755
6756           return drawable;
6757         }
6758     }
6759
6760   return NULL;
6761 }
6762
6763 /**
6764  * gtk_icon_view_get_reorderable:
6765  * @icon_view: a #GtkIconView
6766  *
6767  * Retrieves whether the user can reorder the list via drag-and-drop.
6768  * See gtk_icon_view_set_reorderable().
6769  *
6770  * Return value: %TRUE if the list can be reordered.
6771  *
6772  * Since: 2.8
6773  **/
6774 gboolean
6775 gtk_icon_view_get_reorderable (GtkIconView *icon_view)
6776 {
6777   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
6778
6779   return icon_view->priv->reorderable;
6780 }
6781
6782 static const GtkTargetEntry item_targets[] = {
6783   { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
6784 };
6785
6786
6787 /**
6788  * gtk_icon_view_set_reorderable:
6789  * @icon_view: A #GtkIconView.
6790  * @reorderable: %TRUE, if the list of items can be reordered.
6791  *
6792  * This function is a convenience function to allow you to reorder models that
6793  * support the #GtkTreeDragSourceIface and the #GtkTreeDragDestIface.  Both
6794  * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
6795  * the user can reorder the model by dragging and dropping rows.  The
6796  * developer can listen to these changes by connecting to the model's
6797  * row_inserted and row_deleted signals.
6798  *
6799  * This function does not give you any degree of control over the order -- any
6800  * reordering is allowed.  If more control is needed, you should probably
6801  * handle drag and drop manually.
6802  *
6803  * Since: 2.8
6804  **/
6805 void
6806 gtk_icon_view_set_reorderable (GtkIconView *icon_view,
6807                                gboolean     reorderable)
6808 {
6809   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
6810
6811   reorderable = reorderable != FALSE;
6812
6813   if (icon_view->priv->reorderable == reorderable)
6814     return;
6815
6816   if (reorderable)
6817     {
6818       gtk_icon_view_enable_model_drag_source (icon_view,
6819                                               GDK_BUTTON1_MASK,
6820                                               item_targets,
6821                                               G_N_ELEMENTS (item_targets),
6822                                               GDK_ACTION_MOVE);
6823       gtk_icon_view_enable_model_drag_dest (icon_view,
6824                                             item_targets,
6825                                             G_N_ELEMENTS (item_targets),
6826                                             GDK_ACTION_MOVE);
6827     }
6828   else
6829     {
6830       gtk_icon_view_unset_model_drag_source (icon_view);
6831       gtk_icon_view_unset_model_drag_dest (icon_view);
6832     }
6833
6834   icon_view->priv->reorderable = reorderable;
6835
6836   g_object_notify (G_OBJECT (icon_view), "reorderable");
6837 }
6838
6839
6840 /* Accessibility Support */
6841
6842 static gpointer accessible_parent_class;
6843 static gpointer accessible_item_parent_class;
6844 static GQuark accessible_private_data_quark = 0;
6845
6846 #define GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE      (gtk_icon_view_item_accessible_get_type ())
6847 #define GTK_ICON_VIEW_ITEM_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE, GtkIconViewItemAccessible))
6848 #define GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE))
6849
6850 static GType gtk_icon_view_item_accessible_get_type (void);
6851
6852 enum {
6853     ACTION_ACTIVATE,
6854     LAST_ACTION
6855 };
6856
6857 typedef struct
6858 {
6859   AtkObject parent;
6860
6861   GtkIconViewItem *item;
6862
6863   GtkWidget *widget;
6864
6865   AtkStateSet *state_set;
6866
6867   gchar *text;
6868
6869   GtkTextBuffer *text_buffer;
6870
6871   gchar *action_descriptions[LAST_ACTION];
6872   gchar *image_description;
6873   guint action_idle_handler;
6874 } GtkIconViewItemAccessible;
6875
6876 static const gchar *const gtk_icon_view_item_accessible_action_names[] =
6877 {
6878   "activate",
6879   NULL
6880 };
6881
6882 static const gchar *const gtk_icon_view_item_accessible_action_descriptions[] =
6883 {
6884   "Activate item",
6885   NULL
6886 };
6887 typedef struct _GtkIconViewItemAccessibleClass
6888 {
6889   AtkObjectClass parent_class;
6890
6891 } GtkIconViewItemAccessibleClass;
6892
6893 static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item);
6894
6895 static gboolean
6896 gtk_icon_view_item_accessible_idle_do_action (gpointer data)
6897 {
6898   GtkIconViewItemAccessible *item;
6899   GtkIconView *icon_view;
6900   GtkTreePath *path;
6901
6902   GDK_THREADS_ENTER ();
6903
6904   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (data);
6905   item->action_idle_handler = 0;
6906
6907   if (item->widget != NULL)
6908     {
6909       icon_view = GTK_ICON_VIEW (item->widget);
6910       path = gtk_tree_path_new_from_indices (item->item->index, -1);
6911       gtk_icon_view_item_activated (icon_view, path);
6912       gtk_tree_path_free (path);
6913     }
6914
6915   GDK_THREADS_LEAVE ();
6916
6917   return FALSE;
6918 }
6919
6920 static gboolean
6921 gtk_icon_view_item_accessible_action_do_action (AtkAction *action,
6922                                                 gint       i)
6923 {
6924   GtkIconViewItemAccessible *item;
6925
6926   if (i < 0 || i >= LAST_ACTION)
6927     return FALSE;
6928
6929   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
6930
6931   if (!GTK_IS_ICON_VIEW (item->widget))
6932     return FALSE;
6933
6934   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
6935     return FALSE;
6936
6937   switch (i)
6938     {
6939     case ACTION_ACTIVATE:
6940       if (!item->action_idle_handler)
6941         item->action_idle_handler = g_idle_add (gtk_icon_view_item_accessible_idle_do_action, item);
6942       break;
6943     default:
6944       g_assert_not_reached ();
6945       return FALSE;
6946
6947     }
6948   return TRUE;
6949 }
6950
6951 static gint
6952 gtk_icon_view_item_accessible_action_get_n_actions (AtkAction *action)
6953 {
6954         return LAST_ACTION;
6955 }
6956
6957 static const gchar *
6958 gtk_icon_view_item_accessible_action_get_description (AtkAction *action,
6959                                                       gint       i)
6960 {
6961   GtkIconViewItemAccessible *item;
6962
6963   if (i < 0 || i >= LAST_ACTION)
6964     return NULL;
6965
6966   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
6967
6968   if (item->action_descriptions[i])
6969     return item->action_descriptions[i];
6970   else
6971     return gtk_icon_view_item_accessible_action_descriptions[i];
6972 }
6973
6974 static const gchar *
6975 gtk_icon_view_item_accessible_action_get_name (AtkAction *action,
6976                                                gint       i)
6977 {
6978   if (i < 0 || i >= LAST_ACTION)
6979     return NULL;
6980
6981   return gtk_icon_view_item_accessible_action_names[i];
6982 }
6983
6984 static gboolean
6985 gtk_icon_view_item_accessible_action_set_description (AtkAction   *action,
6986                                                       gint         i,
6987                                                       const gchar *description)
6988 {
6989   GtkIconViewItemAccessible *item;
6990
6991   if (i < 0 || i >= LAST_ACTION)
6992     return FALSE;
6993
6994   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
6995
6996   if (item->action_descriptions[i])
6997     g_free (item->action_descriptions[i]);
6998
6999   item->action_descriptions[i] = g_strdup (description);
7000
7001   return TRUE;
7002 }
7003
7004 static void
7005 atk_action_item_interface_init (AtkActionIface *iface)
7006 {
7007   iface->do_action = gtk_icon_view_item_accessible_action_do_action;
7008   iface->get_n_actions = gtk_icon_view_item_accessible_action_get_n_actions;
7009   iface->get_description = gtk_icon_view_item_accessible_action_get_description;
7010   iface->get_name = gtk_icon_view_item_accessible_action_get_name;
7011   iface->set_description = gtk_icon_view_item_accessible_action_set_description;
7012 }
7013
7014 static const gchar *
7015 gtk_icon_view_item_accessible_image_get_image_description (AtkImage *image)
7016 {
7017   GtkIconViewItemAccessible *item;
7018
7019   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
7020
7021   return item->image_description;
7022 }
7023
7024 static gboolean
7025 gtk_icon_view_item_accessible_image_set_image_description (AtkImage    *image,
7026                                                            const gchar *description)
7027 {
7028   GtkIconViewItemAccessible *item;
7029
7030   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
7031
7032   g_free (item->image_description);
7033   item->image_description = g_strdup (item->image_description);
7034
7035   return TRUE;
7036 }
7037
7038 static gboolean
7039 get_pixbuf_box (GtkIconView     *icon_view,
7040                 GtkIconViewItem *item,
7041                 GdkRectangle    *box)
7042 {
7043   GList *l;
7044
7045   for (l = icon_view->priv->cell_list; l; l = l->next)
7046     {
7047       GtkIconViewCellInfo *info = l->data;
7048
7049       if (GTK_IS_CELL_RENDERER_PIXBUF (info->cell))
7050         {
7051           gtk_icon_view_get_cell_box (icon_view, item, info, box);
7052
7053           return TRUE;
7054         }
7055     }
7056
7057   return FALSE;
7058 }
7059
7060 static gchar *
7061 get_text (GtkIconView     *icon_view,
7062           GtkIconViewItem *item)
7063 {
7064   GList *l;
7065   gchar *text;
7066
7067   for (l = icon_view->priv->cell_list; l; l = l->next)
7068     {
7069       GtkIconViewCellInfo *info = l->data;
7070
7071       if (GTK_IS_CELL_RENDERER_TEXT (info->cell))
7072         {
7073           g_object_get (info->cell, "text", &text, NULL);
7074
7075           return text;
7076         }
7077     }
7078
7079   return NULL;
7080 }
7081
7082 static void
7083 gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image,
7084                                                     gint     *width,
7085                                                     gint     *height)
7086 {
7087   GtkIconViewItemAccessible *item;
7088   GdkRectangle box;
7089
7090   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
7091
7092   if (!GTK_IS_ICON_VIEW (item->widget))
7093     return;
7094
7095   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7096     return;
7097
7098   if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box))
7099     {
7100       *width = box.width;
7101       *height = box.height;
7102     }
7103 }
7104
7105 static void
7106 gtk_icon_view_item_accessible_image_get_image_position (AtkImage    *image,
7107                                                         gint        *x,
7108                                                         gint        *y,
7109                                                         AtkCoordType coord_type)
7110 {
7111   GtkIconViewItemAccessible *item;
7112   GdkRectangle box;
7113
7114   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
7115
7116   if (!GTK_IS_ICON_VIEW (item->widget))
7117     return;
7118
7119   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7120     return;
7121
7122   atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
7123
7124   if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box))
7125     {
7126       *x+= box.x - item->item->x;
7127       *y+= box.y - item->item->y;
7128     }
7129
7130 }
7131
7132 static void
7133 atk_image_item_interface_init (AtkImageIface *iface)
7134 {
7135   iface->get_image_description = gtk_icon_view_item_accessible_image_get_image_description;
7136   iface->set_image_description = gtk_icon_view_item_accessible_image_set_image_description;
7137   iface->get_image_size = gtk_icon_view_item_accessible_image_get_image_size;
7138   iface->get_image_position = gtk_icon_view_item_accessible_image_get_image_position;
7139 }
7140
7141 static gchar *
7142 gtk_icon_view_item_accessible_text_get_text (AtkText *text,
7143                                              gint     start_pos,
7144                                              gint     end_pos)
7145 {
7146   GtkIconViewItemAccessible *item;
7147   GtkTextIter start, end;
7148   GtkTextBuffer *buffer;
7149
7150   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7151
7152   if (!GTK_IS_ICON_VIEW (item->widget))
7153     return NULL;
7154
7155   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7156     return NULL;
7157
7158   buffer = item->text_buffer;
7159   gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
7160   if (end_pos < 0)
7161     gtk_text_buffer_get_end_iter (buffer, &end);
7162   else
7163     gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
7164
7165   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
7166 }
7167
7168 static gunichar
7169 gtk_icon_view_item_accessible_text_get_character_at_offset (AtkText *text,
7170                                                             gint     offset)
7171 {
7172   GtkIconViewItemAccessible *item;
7173   GtkTextIter start, end;
7174   GtkTextBuffer *buffer;
7175   gchar *string;
7176   gunichar unichar;
7177
7178   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7179
7180   if (!GTK_IS_ICON_VIEW (item->widget))
7181     return '\0';
7182
7183   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7184     return '\0';
7185
7186   buffer = item->text_buffer;
7187   if (offset >= gtk_text_buffer_get_char_count (buffer))
7188     return '\0';
7189
7190   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
7191   end = start;
7192   gtk_text_iter_forward_char (&end);
7193   string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
7194   unichar = g_utf8_get_char (string);
7195   g_free(string);
7196
7197   return unichar;
7198 }
7199
7200 #if 0
7201 static void
7202 get_pango_text_offsets (PangoLayout     *layout,
7203                         GtkTextBuffer   *buffer,
7204                         gint             function,
7205                         AtkTextBoundary  boundary_type,
7206                         gint             offset,
7207                         gint            *start_offset,
7208                         gint            *end_offset,
7209                         GtkTextIter     *start_iter,
7210                         GtkTextIter     *end_iter)
7211 {
7212   PangoLayoutIter *iter;
7213   PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL;
7214   gint index, start_index, end_index;
7215   const gchar *text;
7216   gboolean found = FALSE;
7217
7218   text = pango_layout_get_text (layout);
7219   index = g_utf8_offset_to_pointer (text, offset) - text;
7220   iter = pango_layout_get_iter (layout);
7221   do
7222     {
7223       line = pango_layout_iter_get_line (iter);
7224       start_index = line->start_index;
7225       end_index = start_index + line->length;
7226
7227       if (index >= start_index && index <= end_index)
7228         {
7229           /*
7230            * Found line for offset
7231            */
7232           switch (function)
7233             {
7234             case 0:
7235                   /*
7236                    * We want the previous line
7237                    */
7238               if (prev_line)
7239                 {
7240                   switch (boundary_type)
7241                     {
7242                     case ATK_TEXT_BOUNDARY_LINE_START:
7243                       end_index = start_index;
7244                       start_index = prev_line->start_index;
7245                       break;
7246                     case ATK_TEXT_BOUNDARY_LINE_END:
7247                       if (prev_prev_line)
7248                         start_index = prev_prev_line->start_index +
7249                                   prev_prev_line->length;
7250                       end_index = prev_line->start_index + prev_line->length;
7251                       break;
7252                     default:
7253                       g_assert_not_reached();
7254                     }
7255                 }
7256               else
7257                 start_index = end_index = 0;
7258               break;
7259             case 1:
7260               switch (boundary_type)
7261                 {
7262                 case ATK_TEXT_BOUNDARY_LINE_START:
7263                   if (pango_layout_iter_next_line (iter))
7264                     end_index = pango_layout_iter_get_line (iter)->start_index;
7265                   break;
7266                 case ATK_TEXT_BOUNDARY_LINE_END:
7267                   if (prev_line)
7268                     start_index = prev_line->start_index +
7269                                   prev_line->length;
7270                   break;
7271                 default:
7272                   g_assert_not_reached();
7273                 }
7274               break;
7275             case 2:
7276                /*
7277                 * We want the next line
7278                 */
7279               if (pango_layout_iter_next_line (iter))
7280                 {
7281                   line = pango_layout_iter_get_line (iter);
7282                   switch (boundary_type)
7283                     {
7284                     case ATK_TEXT_BOUNDARY_LINE_START:
7285                       start_index = line->start_index;
7286                       if (pango_layout_iter_next_line (iter))
7287                         end_index = pango_layout_iter_get_line (iter)->start_index;
7288                       else
7289                         end_index = start_index + line->length;
7290                       break;
7291                     case ATK_TEXT_BOUNDARY_LINE_END:
7292                       start_index = end_index;
7293                       end_index = line->start_index + line->length;
7294                       break;
7295                     default:
7296                       g_assert_not_reached();
7297                     }
7298                 }
7299               else
7300                 start_index = end_index;
7301               break;
7302             }
7303           found = TRUE;
7304           break;
7305         }
7306       prev_prev_line = prev_line;
7307       prev_line = line;
7308     }
7309   while (pango_layout_iter_next_line (iter));
7310
7311   if (!found)
7312     {
7313       start_index = prev_line->start_index + prev_line->length;
7314       end_index = start_index;
7315     }
7316   pango_layout_iter_free (iter);
7317   *start_offset = g_utf8_pointer_to_offset (text, text + start_index);
7318   *end_offset = g_utf8_pointer_to_offset (text, text + end_index);
7319
7320   gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset);
7321   gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset);
7322 }
7323 #endif
7324
7325 static gchar*
7326 gtk_icon_view_item_accessible_text_get_text_before_offset (AtkText         *text,
7327                                                            gint            offset,
7328                                                            AtkTextBoundary boundary_type,
7329                                                            gint            *start_offset,
7330                                                            gint            *end_offset)
7331 {
7332   GtkIconViewItemAccessible *item;
7333   GtkTextIter start, end;
7334   GtkTextBuffer *buffer;
7335 #if 0
7336   GtkIconView *icon_view;
7337 #endif
7338
7339   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7340
7341   if (!GTK_IS_ICON_VIEW (item->widget))
7342     return NULL;
7343
7344   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7345     return NULL;
7346
7347   buffer = item->text_buffer;
7348
7349   if (!gtk_text_buffer_get_char_count (buffer))
7350     {
7351       *start_offset = 0;
7352       *end_offset = 0;
7353       return g_strdup ("");
7354     }
7355   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
7356
7357   end = start;
7358
7359   switch (boundary_type)
7360     {
7361     case ATK_TEXT_BOUNDARY_CHAR:
7362       gtk_text_iter_backward_char(&start);
7363       break;
7364     case ATK_TEXT_BOUNDARY_WORD_START:
7365       if (!gtk_text_iter_starts_word (&start))
7366         gtk_text_iter_backward_word_start (&start);
7367       end = start;
7368       gtk_text_iter_backward_word_start(&start);
7369       break;
7370     case ATK_TEXT_BOUNDARY_WORD_END:
7371       if (gtk_text_iter_inside_word (&start) &&
7372           !gtk_text_iter_starts_word (&start))
7373         gtk_text_iter_backward_word_start (&start);
7374       while (!gtk_text_iter_ends_word (&start))
7375         {
7376           if (!gtk_text_iter_backward_char (&start))
7377             break;
7378         }
7379       end = start;
7380       gtk_text_iter_backward_word_start(&start);
7381       while (!gtk_text_iter_ends_word (&start))
7382         {
7383           if (!gtk_text_iter_backward_char (&start))
7384             break;
7385         }
7386       break;
7387     case ATK_TEXT_BOUNDARY_SENTENCE_START:
7388       if (!gtk_text_iter_starts_sentence (&start))
7389         gtk_text_iter_backward_sentence_start (&start);
7390       end = start;
7391       gtk_text_iter_backward_sentence_start (&start);
7392       break;
7393     case ATK_TEXT_BOUNDARY_SENTENCE_END:
7394       if (gtk_text_iter_inside_sentence (&start) &&
7395           !gtk_text_iter_starts_sentence (&start))
7396         gtk_text_iter_backward_sentence_start (&start);
7397       while (!gtk_text_iter_ends_sentence (&start))
7398         {
7399           if (!gtk_text_iter_backward_char (&start))
7400             break;
7401         }
7402       end = start;
7403       gtk_text_iter_backward_sentence_start (&start);
7404       while (!gtk_text_iter_ends_sentence (&start))
7405         {
7406           if (!gtk_text_iter_backward_char (&start))
7407             break;
7408         }
7409       break;
7410    case ATK_TEXT_BOUNDARY_LINE_START:
7411    case ATK_TEXT_BOUNDARY_LINE_END:
7412 #if 0
7413       icon_view = GTK_ICON_VIEW (item->widget);
7414       /* FIXME we probably have to use GailTextCell to salvage this */
7415       gtk_icon_view_update_item_text (icon_view, item->item);
7416       get_pango_text_offsets (icon_view->priv->layout,
7417                               buffer,
7418                               0,
7419                               boundary_type,
7420                               offset,
7421                               start_offset,
7422                               end_offset,
7423                               &start,
7424                               &end);
7425 #endif
7426       break;
7427     }
7428
7429   *start_offset = gtk_text_iter_get_offset (&start);
7430   *end_offset = gtk_text_iter_get_offset (&end);
7431
7432   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
7433 }
7434
7435 static gchar*
7436 gtk_icon_view_item_accessible_text_get_text_at_offset (AtkText         *text,
7437                                                        gint            offset,
7438                                                        AtkTextBoundary boundary_type,
7439                                                        gint            *start_offset,
7440                                                        gint            *end_offset)
7441 {
7442   GtkIconViewItemAccessible *item;
7443   GtkTextIter start, end;
7444   GtkTextBuffer *buffer;
7445 #if 0
7446   GtkIconView *icon_view;
7447 #endif
7448
7449   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7450
7451   if (!GTK_IS_ICON_VIEW (item->widget))
7452     return NULL;
7453
7454   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7455     return NULL;
7456
7457   buffer = item->text_buffer;
7458
7459   if (!gtk_text_buffer_get_char_count (buffer))
7460     {
7461       *start_offset = 0;
7462       *end_offset = 0;
7463       return g_strdup ("");
7464     }
7465   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
7466
7467   end = start;
7468
7469   switch (boundary_type)
7470     {
7471     case ATK_TEXT_BOUNDARY_CHAR:
7472       gtk_text_iter_forward_char (&end);
7473       break;
7474     case ATK_TEXT_BOUNDARY_WORD_START:
7475       if (!gtk_text_iter_starts_word (&start))
7476         gtk_text_iter_backward_word_start (&start);
7477       if (gtk_text_iter_inside_word (&end))
7478         gtk_text_iter_forward_word_end (&end);
7479       while (!gtk_text_iter_starts_word (&end))
7480         {
7481           if (!gtk_text_iter_forward_char (&end))
7482             break;
7483         }
7484       break;
7485     case ATK_TEXT_BOUNDARY_WORD_END:
7486       if (gtk_text_iter_inside_word (&start) &&
7487           !gtk_text_iter_starts_word (&start))
7488         gtk_text_iter_backward_word_start (&start);
7489       while (!gtk_text_iter_ends_word (&start))
7490         {
7491           if (!gtk_text_iter_backward_char (&start))
7492             break;
7493         }
7494       gtk_text_iter_forward_word_end (&end);
7495       break;
7496     case ATK_TEXT_BOUNDARY_SENTENCE_START:
7497       if (!gtk_text_iter_starts_sentence (&start))
7498         gtk_text_iter_backward_sentence_start (&start);
7499       if (gtk_text_iter_inside_sentence (&end))
7500         gtk_text_iter_forward_sentence_end (&end);
7501       while (!gtk_text_iter_starts_sentence (&end))
7502         {
7503           if (!gtk_text_iter_forward_char (&end))
7504             break;
7505         }
7506       break;
7507     case ATK_TEXT_BOUNDARY_SENTENCE_END:
7508       if (gtk_text_iter_inside_sentence (&start) &&
7509           !gtk_text_iter_starts_sentence (&start))
7510         gtk_text_iter_backward_sentence_start (&start);
7511       while (!gtk_text_iter_ends_sentence (&start))
7512         {
7513           if (!gtk_text_iter_backward_char (&start))
7514             break;
7515         }
7516       gtk_text_iter_forward_sentence_end (&end);
7517       break;
7518    case ATK_TEXT_BOUNDARY_LINE_START:
7519    case ATK_TEXT_BOUNDARY_LINE_END:
7520 #if 0
7521       icon_view = GTK_ICON_VIEW (item->widget);
7522       /* FIXME we probably have to use GailTextCell to salvage this */
7523       gtk_icon_view_update_item_text (icon_view, item->item);
7524       get_pango_text_offsets (icon_view->priv->layout,
7525                               buffer,
7526                               1,
7527                               boundary_type,
7528                               offset,
7529                               start_offset,
7530                               end_offset,
7531                               &start,
7532                               &end);
7533 #endif
7534       break;
7535     }
7536
7537
7538   *start_offset = gtk_text_iter_get_offset (&start);
7539   *end_offset = gtk_text_iter_get_offset (&end);
7540
7541   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
7542 }
7543
7544 static gchar*
7545 gtk_icon_view_item_accessible_text_get_text_after_offset (AtkText         *text,
7546                                                           gint            offset,
7547                                                           AtkTextBoundary boundary_type,
7548                                                           gint            *start_offset,
7549                                                           gint            *end_offset)
7550 {
7551   GtkIconViewItemAccessible *item;
7552   GtkTextIter start, end;
7553   GtkTextBuffer *buffer;
7554 #if 0
7555   GtkIconView *icon_view;
7556 #endif
7557
7558   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7559
7560   if (!GTK_IS_ICON_VIEW (item->widget))
7561     return NULL;
7562
7563   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7564     return NULL;
7565
7566   buffer = item->text_buffer;
7567
7568   if (!gtk_text_buffer_get_char_count (buffer))
7569     {
7570       *start_offset = 0;
7571       *end_offset = 0;
7572       return g_strdup ("");
7573     }
7574   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
7575
7576   end = start;
7577
7578   switch (boundary_type)
7579     {
7580     case ATK_TEXT_BOUNDARY_CHAR:
7581       gtk_text_iter_forward_char(&start);
7582       gtk_text_iter_forward_chars(&end, 2);
7583       break;
7584     case ATK_TEXT_BOUNDARY_WORD_START:
7585       if (gtk_text_iter_inside_word (&end))
7586         gtk_text_iter_forward_word_end (&end);
7587       while (!gtk_text_iter_starts_word (&end))
7588         {
7589           if (!gtk_text_iter_forward_char (&end))
7590             break;
7591         }
7592       start = end;
7593       if (!gtk_text_iter_is_end (&end))
7594         {
7595           gtk_text_iter_forward_word_end (&end);
7596           while (!gtk_text_iter_starts_word (&end))
7597             {
7598               if (!gtk_text_iter_forward_char (&end))
7599                 break;
7600             }
7601         }
7602       break;
7603     case ATK_TEXT_BOUNDARY_WORD_END:
7604       gtk_text_iter_forward_word_end (&end);
7605       start = end;
7606       if (!gtk_text_iter_is_end (&end))
7607         gtk_text_iter_forward_word_end (&end);
7608       break;
7609     case ATK_TEXT_BOUNDARY_SENTENCE_START:
7610       if (gtk_text_iter_inside_sentence (&end))
7611         gtk_text_iter_forward_sentence_end (&end);
7612       while (!gtk_text_iter_starts_sentence (&end))
7613         {
7614           if (!gtk_text_iter_forward_char (&end))
7615             break;
7616         }
7617       start = end;
7618       if (!gtk_text_iter_is_end (&end))
7619         {
7620           gtk_text_iter_forward_sentence_end (&end);
7621           while (!gtk_text_iter_starts_sentence (&end))
7622             {
7623               if (!gtk_text_iter_forward_char (&end))
7624                 break;
7625             }
7626         }
7627       break;
7628     case ATK_TEXT_BOUNDARY_SENTENCE_END:
7629       gtk_text_iter_forward_sentence_end (&end);
7630       start = end;
7631       if (!gtk_text_iter_is_end (&end))
7632         gtk_text_iter_forward_sentence_end (&end);
7633       break;
7634    case ATK_TEXT_BOUNDARY_LINE_START:
7635    case ATK_TEXT_BOUNDARY_LINE_END:
7636 #if 0
7637       icon_view = GTK_ICON_VIEW (item->widget);
7638       /* FIXME we probably have to use GailTextCell to salvage this */
7639       gtk_icon_view_update_item_text (icon_view, item->item);
7640       get_pango_text_offsets (icon_view->priv->layout,
7641                               buffer,
7642                               2,
7643                               boundary_type,
7644                               offset,
7645                               start_offset,
7646                               end_offset,
7647                               &start,
7648                               &end);
7649 #endif
7650       break;
7651     }
7652   *start_offset = gtk_text_iter_get_offset (&start);
7653   *end_offset = gtk_text_iter_get_offset (&end);
7654
7655   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
7656 }
7657
7658 static gint
7659 gtk_icon_view_item_accessible_text_get_character_count (AtkText *text)
7660 {
7661   GtkIconViewItemAccessible *item;
7662
7663   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7664
7665   if (!GTK_IS_ICON_VIEW (item->widget))
7666     return 0;
7667
7668   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7669     return 0;
7670
7671   return gtk_text_buffer_get_char_count (item->text_buffer);
7672 }
7673
7674 static void
7675 gtk_icon_view_item_accessible_text_get_character_extents (AtkText      *text,
7676                                                           gint         offset,
7677                                                           gint         *x,
7678                                                           gint         *y,
7679                                                           gint         *width,
7680                                                           gint         *height,
7681                                                           AtkCoordType coord_type)
7682 {
7683   GtkIconViewItemAccessible *item;
7684 #if 0
7685   GtkIconView *icon_view;
7686   PangoRectangle char_rect;
7687   const gchar *item_text;
7688   gint index;
7689 #endif
7690
7691   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7692
7693   if (!GTK_IS_ICON_VIEW (item->widget))
7694     return;
7695
7696   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7697     return;
7698
7699 #if 0
7700   icon_view = GTK_ICON_VIEW (item->widget);
7701       /* FIXME we probably have to use GailTextCell to salvage this */
7702   gtk_icon_view_update_item_text (icon_view, item->item);
7703   item_text = pango_layout_get_text (icon_view->priv->layout);
7704   index = g_utf8_offset_to_pointer (item_text, offset) - item_text;
7705   pango_layout_index_to_pos (icon_view->priv->layout, index, &char_rect);
7706
7707   atk_component_get_position (ATK_COMPONENT (text), x, y, coord_type);
7708   *x += item->item->layout_x - item->item->x + char_rect.x / PANGO_SCALE;
7709   /* Look at gtk_icon_view_paint_item() to see where the text is. */
7710   *x -=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
7711   *y += item->item->layout_y - item->item->y + char_rect.y / PANGO_SCALE;
7712   *width = char_rect.width / PANGO_SCALE;
7713   *height = char_rect.height / PANGO_SCALE;
7714 #endif
7715 }
7716
7717 static gint
7718 gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText      *text,
7719                                                         gint          x,
7720                                                         gint          y,
7721                                                         AtkCoordType coord_type)
7722 {
7723   GtkIconViewItemAccessible *item;
7724   gint offset = 0;
7725 #if 0
7726   GtkIconView *icon_view;
7727   const gchar *item_text;
7728   gint index;
7729   gint l_x, l_y;
7730 #endif
7731
7732   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
7733
7734   if (!GTK_IS_ICON_VIEW (item->widget))
7735     return -1;
7736
7737   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7738     return -1;
7739
7740 #if 0
7741   icon_view = GTK_ICON_VIEW (item->widget);
7742       /* FIXME we probably have to use GailTextCell to salvage this */
7743   gtk_icon_view_update_item_text (icon_view, item->item);
7744   atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type);
7745   x -= l_x + item->item->layout_x - item->item->x;
7746   x +=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
7747   y -= l_y + item->item->layout_y - item->item->y;
7748   item_text = pango_layout_get_text (icon_view->priv->layout);
7749   if (!pango_layout_xy_to_index (icon_view->priv->layout,
7750                                 x * PANGO_SCALE,
7751                                 y * PANGO_SCALE,
7752                                 &index, NULL))
7753     {
7754       if (x < 0 || y < 0)
7755         index = 0;
7756       else
7757         index = -1;
7758     }
7759   if (index == -1)
7760     offset = g_utf8_strlen (item_text, -1);
7761   else
7762     offset = g_utf8_pointer_to_offset (item_text, item_text + index);
7763 #endif
7764   return offset;
7765 }
7766
7767 static void
7768 atk_text_item_interface_init (AtkTextIface *iface)
7769 {
7770   iface->get_text = gtk_icon_view_item_accessible_text_get_text;
7771   iface->get_character_at_offset = gtk_icon_view_item_accessible_text_get_character_at_offset;
7772   iface->get_text_before_offset = gtk_icon_view_item_accessible_text_get_text_before_offset;
7773   iface->get_text_at_offset = gtk_icon_view_item_accessible_text_get_text_at_offset;
7774   iface->get_text_after_offset = gtk_icon_view_item_accessible_text_get_text_after_offset;
7775   iface->get_character_count = gtk_icon_view_item_accessible_text_get_character_count;
7776   iface->get_character_extents = gtk_icon_view_item_accessible_text_get_character_extents;
7777   iface->get_offset_at_point = gtk_icon_view_item_accessible_text_get_offset_at_point;
7778 }
7779
7780 static void
7781 gtk_icon_view_item_accessible_get_extents (AtkComponent *component,
7782                                            gint         *x,
7783                                            gint         *y,
7784                                            gint         *width,
7785                                            gint         *height,
7786                                            AtkCoordType  coord_type)
7787 {
7788   GtkIconViewItemAccessible *item;
7789   AtkObject *parent_obj;
7790   gint l_x, l_y;
7791
7792   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component));
7793
7794   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
7795   if (!GTK_IS_WIDGET (item->widget))
7796     return;
7797
7798   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
7799     return;
7800
7801   *width = item->item->width;
7802   *height = item->item->height;
7803   if (gtk_icon_view_item_accessible_is_showing (item))
7804     {
7805       parent_obj = gtk_widget_get_accessible (item->widget);
7806       atk_component_get_position (ATK_COMPONENT (parent_obj), &l_x, &l_y, coord_type);
7807       *x = l_x + item->item->x;
7808       *y = l_y + item->item->y;
7809     }
7810   else
7811     {
7812       *x = G_MININT;
7813       *y = G_MININT;
7814     }
7815 }
7816
7817 static gboolean
7818 gtk_icon_view_item_accessible_grab_focus (AtkComponent *component)
7819 {
7820   GtkIconViewItemAccessible *item;
7821   GtkWidget *toplevel;
7822
7823   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component), FALSE);
7824
7825   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
7826   if (!GTK_IS_WIDGET (item->widget))
7827     return FALSE;
7828
7829   gtk_widget_grab_focus (item->widget);
7830   gtk_icon_view_set_cursor_item (GTK_ICON_VIEW (item->widget), item->item, -1);
7831   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget));
7832   if (GTK_WIDGET_TOPLEVEL (toplevel))
7833     gtk_window_present (GTK_WINDOW (toplevel));
7834
7835   return TRUE;
7836 }
7837
7838 static void
7839 atk_component_item_interface_init (AtkComponentIface *iface)
7840 {
7841   iface->get_extents = gtk_icon_view_item_accessible_get_extents;
7842   iface->grab_focus = gtk_icon_view_item_accessible_grab_focus;
7843 }
7844
7845 static gboolean
7846 gtk_icon_view_item_accessible_add_state (GtkIconViewItemAccessible *item,
7847                                          AtkStateType               state_type,
7848                                          gboolean                   emit_signal)
7849 {
7850   gboolean rc;
7851
7852   rc = atk_state_set_add_state (item->state_set, state_type);
7853   /*
7854    * The signal should only be generated if the value changed,
7855    * not when the item is set up.  So states that are set
7856    * initially should pass FALSE as the emit_signal argument.
7857    */
7858
7859   if (emit_signal)
7860     {
7861       atk_object_notify_state_change (ATK_OBJECT (item), state_type, TRUE);
7862       /* If state_type is ATK_STATE_VISIBLE, additional notification */
7863       if (state_type == ATK_STATE_VISIBLE)
7864         g_signal_emit_by_name (item, "visible_data_changed");
7865     }
7866
7867   return rc;
7868 }
7869
7870 static gboolean
7871 gtk_icon_view_item_accessible_remove_state (GtkIconViewItemAccessible *item,
7872                                             AtkStateType               state_type,
7873                                             gboolean                   emit_signal)
7874 {
7875   if (atk_state_set_contains_state (item->state_set, state_type))
7876     {
7877       gboolean rc;
7878
7879       rc = atk_state_set_remove_state (item->state_set, state_type);
7880       /*
7881        * The signal should only be generated if the value changed,
7882        * not when the item is set up.  So states that are set
7883        * initially should pass FALSE as the emit_signal argument.
7884        */
7885
7886       if (emit_signal)
7887         {
7888           atk_object_notify_state_change (ATK_OBJECT (item), state_type, FALSE);
7889           /* If state_type is ATK_STATE_VISIBLE, additional notification */
7890           if (state_type == ATK_STATE_VISIBLE)
7891             g_signal_emit_by_name (item, "visible_data_changed");
7892         }
7893
7894       return rc;
7895     }
7896   else
7897     return FALSE;
7898 }
7899
7900 static gboolean
7901 gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item)
7902 {
7903   GtkIconView *icon_view;
7904   GdkRectangle visible_rect;
7905   gboolean is_showing;
7906
7907   /*
7908    * An item is considered "SHOWING" if any part of the item is in the
7909    * visible rectangle.
7910    */
7911
7912   if (!GTK_IS_ICON_VIEW (item->widget))
7913     return FALSE;
7914
7915   if (item->item == NULL)
7916     return FALSE;
7917
7918   icon_view = GTK_ICON_VIEW (item->widget);
7919   visible_rect.x = 0;
7920   if (icon_view->priv->hadjustment)
7921     visible_rect.x += icon_view->priv->hadjustment->value;
7922   visible_rect.y = 0;
7923   if (icon_view->priv->hadjustment)
7924     visible_rect.y += icon_view->priv->vadjustment->value;
7925   visible_rect.width = item->widget->allocation.width;
7926   visible_rect.height = item->widget->allocation.height;
7927
7928   if (((item->item->x + item->item->width) < visible_rect.x) ||
7929      ((item->item->y + item->item->height) < (visible_rect.y)) ||
7930      (item->item->x > (visible_rect.x + visible_rect.width)) ||
7931      (item->item->y > (visible_rect.y + visible_rect.height)))
7932     is_showing =  FALSE;
7933   else
7934     is_showing = TRUE;
7935
7936   return is_showing;
7937 }
7938
7939 static gboolean
7940 gtk_icon_view_item_accessible_set_visibility (GtkIconViewItemAccessible *item,
7941                                               gboolean                   emit_signal)
7942 {
7943   if (gtk_icon_view_item_accessible_is_showing (item))
7944     return gtk_icon_view_item_accessible_add_state (item, ATK_STATE_SHOWING,
7945                                                     emit_signal);
7946   else
7947     return gtk_icon_view_item_accessible_remove_state (item, ATK_STATE_SHOWING,
7948                                                        emit_signal);
7949 }
7950
7951 static void
7952 gtk_icon_view_item_accessible_object_init (GtkIconViewItemAccessible *item)
7953 {
7954   gint i;
7955
7956   item->state_set = atk_state_set_new ();
7957
7958   atk_state_set_add_state (item->state_set, ATK_STATE_ENABLED);
7959   atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSABLE);
7960   atk_state_set_add_state (item->state_set, ATK_STATE_SENSITIVE);
7961   atk_state_set_add_state (item->state_set, ATK_STATE_SELECTABLE);
7962   atk_state_set_add_state (item->state_set, ATK_STATE_VISIBLE);
7963
7964   for (i = 0; i < LAST_ACTION; i++)
7965     item->action_descriptions[i] = NULL;
7966
7967   item->image_description = NULL;
7968
7969   item->action_idle_handler = 0;
7970 }
7971
7972 static void
7973 gtk_icon_view_item_accessible_finalize (GObject *object)
7974 {
7975   GtkIconViewItemAccessible *item;
7976   gint i;
7977
7978   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (object));
7979
7980   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (object);
7981
7982   if (item->widget)
7983     g_object_remove_weak_pointer (G_OBJECT (item->widget), (gpointer) &item->widget);
7984
7985   if (item->state_set)
7986     g_object_unref (item->state_set);
7987
7988   if (item->text_buffer)
7989      g_object_unref (item->text_buffer);
7990
7991   for (i = 0; i < LAST_ACTION; i++)
7992     g_free (item->action_descriptions[i]);
7993
7994   g_free (item->image_description);
7995
7996   if (item->action_idle_handler)
7997     {
7998       g_source_remove (item->action_idle_handler);
7999       item->action_idle_handler = 0;
8000     }
8001
8002   G_OBJECT_CLASS (accessible_item_parent_class)->finalize (object);
8003 }
8004
8005 static G_CONST_RETURN gchar*
8006 gtk_icon_view_item_accessible_get_name (AtkObject *obj)
8007 {
8008   if (obj->name)
8009     return obj->name;
8010   else
8011     {
8012       GtkIconViewItemAccessible *item;
8013       GtkTextIter start_iter;
8014       GtkTextIter end_iter;
8015
8016       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
8017
8018       gtk_text_buffer_get_start_iter (item->text_buffer, &start_iter);
8019       gtk_text_buffer_get_end_iter (item->text_buffer, &end_iter);
8020
8021       return gtk_text_buffer_get_text (item->text_buffer, &start_iter, &end_iter, FALSE);
8022     }
8023 }
8024
8025 static AtkObject*
8026 gtk_icon_view_item_accessible_get_parent (AtkObject *obj)
8027 {
8028   GtkIconViewItemAccessible *item;
8029
8030   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), NULL);
8031   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
8032
8033   if (item->widget)
8034     return gtk_widget_get_accessible (item->widget);
8035   else
8036     return NULL;
8037 }
8038
8039 static gint
8040 gtk_icon_view_item_accessible_get_index_in_parent (AtkObject *obj)
8041 {
8042   GtkIconViewItemAccessible *item;
8043
8044   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), 0);
8045   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
8046
8047   return item->item->index;
8048 }
8049
8050 static AtkStateSet *
8051 gtk_icon_view_item_accessible_ref_state_set (AtkObject *obj)
8052 {
8053   GtkIconViewItemAccessible *item;
8054   GtkIconView *icon_view;
8055
8056   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
8057   g_return_val_if_fail (item->state_set, NULL);
8058
8059   if (!item->widget)
8060     return NULL;
8061
8062   icon_view = GTK_ICON_VIEW (item->widget);
8063   if (icon_view->priv->cursor_item == item->item)
8064     atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSED);
8065   else
8066     atk_state_set_remove_state (item->state_set, ATK_STATE_FOCUSED);
8067
8068   return g_object_ref (item->state_set);
8069 }
8070
8071 static void
8072 gtk_icon_view_item_accessible_class_init (AtkObjectClass *klass)
8073 {
8074   GObjectClass *gobject_class;
8075
8076   accessible_item_parent_class = g_type_class_peek_parent (klass);
8077
8078   gobject_class = (GObjectClass *)klass;
8079
8080   gobject_class->finalize = gtk_icon_view_item_accessible_finalize;
8081
8082   klass->get_index_in_parent = gtk_icon_view_item_accessible_get_index_in_parent;
8083   klass->get_name = gtk_icon_view_item_accessible_get_name;
8084   klass->get_parent = gtk_icon_view_item_accessible_get_parent;
8085   klass->ref_state_set = gtk_icon_view_item_accessible_ref_state_set;
8086 }
8087
8088 static GType
8089 gtk_icon_view_item_accessible_get_type (void)
8090 {
8091   static GType type = 0;
8092
8093   if (!type)
8094     {
8095       const GTypeInfo tinfo =
8096       {
8097         sizeof (GtkIconViewItemAccessibleClass),
8098         (GBaseInitFunc) NULL, /* base init */
8099         (GBaseFinalizeFunc) NULL, /* base finalize */
8100         (GClassInitFunc) gtk_icon_view_item_accessible_class_init, /* class init */
8101         (GClassFinalizeFunc) NULL, /* class finalize */
8102         NULL, /* class data */
8103         sizeof (GtkIconViewItemAccessible), /* instance size */
8104         0, /* nb preallocs */
8105         (GInstanceInitFunc) gtk_icon_view_item_accessible_object_init, /* instance init */
8106         NULL /* value table */
8107       };
8108
8109       static const GInterfaceInfo atk_component_info =
8110       {
8111         (GInterfaceInitFunc) atk_component_item_interface_init,
8112         (GInterfaceFinalizeFunc) NULL,
8113         NULL
8114       };
8115       static const GInterfaceInfo atk_action_info =
8116       {
8117         (GInterfaceInitFunc) atk_action_item_interface_init,
8118         (GInterfaceFinalizeFunc) NULL,
8119         NULL
8120       };
8121       static const GInterfaceInfo atk_image_info =
8122       {
8123         (GInterfaceInitFunc) atk_image_item_interface_init,
8124         (GInterfaceFinalizeFunc) NULL,
8125         NULL
8126       };
8127       static const GInterfaceInfo atk_text_info =
8128       {
8129         (GInterfaceInitFunc) atk_text_item_interface_init,
8130         (GInterfaceFinalizeFunc) NULL,
8131         NULL
8132       };
8133
8134       type = g_type_register_static (ATK_TYPE_OBJECT,
8135                                      I_("GtkIconViewItemAccessible"), &tinfo, 0);
8136       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
8137                                    &atk_component_info);
8138       g_type_add_interface_static (type, ATK_TYPE_ACTION,
8139                                    &atk_action_info);
8140       g_type_add_interface_static (type, ATK_TYPE_IMAGE,
8141                                    &atk_image_info);
8142       g_type_add_interface_static (type, ATK_TYPE_TEXT,
8143                                    &atk_text_info);
8144     }
8145
8146   return type;
8147 }
8148
8149 #define GTK_TYPE_ICON_VIEW_ACCESSIBLE      (gtk_icon_view_accessible_get_type ())
8150 #define GTK_ICON_VIEW_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE, GtkIconViewAccessible))
8151 #define GTK_IS_ICON_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE))
8152
8153 static GType gtk_icon_view_accessible_get_type (void);
8154
8155 typedef struct
8156 {
8157    AtkObject parent;
8158 } GtkIconViewAccessible;
8159
8160 typedef struct
8161 {
8162   AtkObject *item;
8163   gint       index;
8164 } GtkIconViewItemAccessibleInfo;
8165
8166 typedef struct
8167 {
8168   GList *items;
8169
8170   GtkAdjustment *old_hadj;
8171   GtkAdjustment *old_vadj;
8172
8173   GtkTreeModel *model;
8174
8175 } GtkIconViewAccessiblePrivate;
8176
8177 static GtkIconViewAccessiblePrivate *
8178 gtk_icon_view_accessible_get_priv (AtkObject *accessible)
8179 {
8180   return g_object_get_qdata (G_OBJECT (accessible),
8181                              accessible_private_data_quark);
8182 }
8183
8184 static void
8185 gtk_icon_view_item_accessible_info_new (AtkObject *accessible,
8186                                         AtkObject *item,
8187                                         gint       index)
8188 {
8189   GtkIconViewItemAccessibleInfo *info;
8190   GtkIconViewItemAccessibleInfo *tmp_info;
8191   GtkIconViewAccessiblePrivate *priv;
8192   GList *items;
8193
8194   info = g_new (GtkIconViewItemAccessibleInfo, 1);
8195   info->item = item;
8196   info->index = index;
8197
8198   priv = gtk_icon_view_accessible_get_priv (accessible);
8199   items = priv->items;
8200   while (items)
8201     {
8202       tmp_info = items->data;
8203       if (tmp_info->index > index)
8204         break;
8205       items = items->next;
8206     }
8207   priv->items = g_list_insert_before (priv->items, items, info);
8208   priv->old_hadj = NULL;
8209   priv->old_vadj = NULL;
8210 }
8211
8212 static gint
8213 gtk_icon_view_accessible_get_n_children (AtkObject *accessible)
8214 {
8215   GtkIconView *icon_view;
8216   GtkWidget *widget;
8217
8218   widget = GTK_ACCESSIBLE (accessible)->widget;
8219   if (!widget)
8220       return 0;
8221
8222   icon_view = GTK_ICON_VIEW (widget);
8223
8224   return g_list_length (icon_view->priv->items);
8225 }
8226
8227 static AtkObject *
8228 gtk_icon_view_accessible_find_child (AtkObject *accessible,
8229                                      gint       index)
8230 {
8231   GtkIconViewAccessiblePrivate *priv;
8232   GtkIconViewItemAccessibleInfo *info;
8233   GList *items;
8234
8235   priv = gtk_icon_view_accessible_get_priv (accessible);
8236   items = priv->items;
8237
8238   while (items)
8239     {
8240       info = items->data;
8241       if (info->index == index)
8242         return info->item;
8243       items = items->next;
8244     }
8245   return NULL;
8246 }
8247
8248 static AtkObject *
8249 gtk_icon_view_accessible_ref_child (AtkObject *accessible,
8250                                     gint       index)
8251 {
8252   GtkIconView *icon_view;
8253   GtkWidget *widget;
8254   GList *icons;
8255   AtkObject *obj;
8256   GtkIconViewItemAccessible *a11y_item;
8257
8258   widget = GTK_ACCESSIBLE (accessible)->widget;
8259   if (!widget)
8260     return NULL;
8261
8262   icon_view = GTK_ICON_VIEW (widget);
8263   icons = g_list_nth (icon_view->priv->items, index);
8264   obj = NULL;
8265   if (icons)
8266     {
8267       GtkIconViewItem *item = icons->data;
8268
8269       g_return_val_if_fail (item->index == index, NULL);
8270       obj = gtk_icon_view_accessible_find_child (accessible, index);
8271       if (!obj)
8272         {
8273           obj = g_object_new (gtk_icon_view_item_accessible_get_type (), NULL);
8274           gtk_icon_view_item_accessible_info_new (accessible,
8275                                                   obj,
8276                                                   index);
8277           obj->role = ATK_ROLE_ICON;
8278           a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
8279           a11y_item->item = item;
8280           a11y_item->widget = widget;
8281           a11y_item->text_buffer = gtk_text_buffer_new (NULL);
8282
8283           gtk_icon_view_set_cell_data (icon_view, item);
8284           gtk_text_buffer_set_text (a11y_item->text_buffer,
8285                                     get_text (icon_view, item), -1);
8286
8287           gtk_icon_view_item_accessible_set_visibility (a11y_item, FALSE);
8288           g_object_add_weak_pointer (G_OBJECT (widget), (gpointer) &(a11y_item->widget));
8289        }
8290       g_object_ref (obj);
8291     }
8292   return obj;
8293 }
8294
8295 static void
8296 gtk_icon_view_accessible_traverse_items (GtkIconViewAccessible *view,
8297                                          GList                 *list)
8298 {
8299   GtkIconViewAccessiblePrivate *priv;
8300   GtkIconViewItemAccessibleInfo *info;
8301   GtkIconViewItemAccessible *item;
8302   GList *items;
8303
8304   priv =  gtk_icon_view_accessible_get_priv (ATK_OBJECT (view));
8305   if (priv->items)
8306     {
8307       GtkWidget *widget;
8308       gboolean act_on_item;
8309
8310       widget = GTK_ACCESSIBLE (view)->widget;
8311       if (widget == NULL)
8312         return;
8313
8314       items = priv->items;
8315
8316       act_on_item = (list == NULL);
8317
8318       while (items)
8319         {
8320
8321           info = (GtkIconViewItemAccessibleInfo *)items->data;
8322           item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
8323
8324           if (act_on_item == FALSE && list == items)
8325             act_on_item = TRUE;
8326
8327           if (act_on_item)
8328             gtk_icon_view_item_accessible_set_visibility (item, TRUE);
8329
8330           items = items->next;
8331        }
8332    }
8333 }
8334
8335 static void
8336 gtk_icon_view_accessible_adjustment_changed (GtkAdjustment *adjustment,
8337                                              GtkIconView   *icon_view)
8338 {
8339   AtkObject *obj;
8340   GtkIconViewAccessible *view;
8341
8342   /*
8343    * The scrollbars have changed
8344    */
8345   obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
8346   view = GTK_ICON_VIEW_ACCESSIBLE (obj);
8347
8348   gtk_icon_view_accessible_traverse_items (view, NULL);
8349 }
8350
8351 static void
8352 gtk_icon_view_accessible_set_scroll_adjustments (GtkWidget      *widget,
8353                                                  GtkAdjustment *hadj,
8354                                                  GtkAdjustment *vadj)
8355 {
8356   AtkObject *atk_obj;
8357   GtkIconViewAccessiblePrivate *priv;
8358
8359   atk_obj = gtk_widget_get_accessible (widget);
8360   priv = gtk_icon_view_accessible_get_priv (atk_obj);
8361
8362   if (priv->old_hadj != hadj)
8363     {
8364       if (priv->old_hadj)
8365         {
8366           g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
8367                                         (gpointer *)&priv->old_hadj);
8368
8369           g_signal_handlers_disconnect_by_func (priv->old_hadj,
8370                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
8371                                                 widget);
8372         }
8373       priv->old_hadj = hadj;
8374       if (priv->old_hadj)
8375         {
8376           g_object_add_weak_pointer (G_OBJECT (priv->old_hadj),
8377                                      (gpointer *)&priv->old_hadj);
8378           g_signal_connect (hadj,
8379                             "value-changed",
8380                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
8381                             widget);
8382         }
8383     }
8384   if (priv->old_vadj != vadj)
8385     {
8386       if (priv->old_vadj)
8387         {
8388           g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
8389                                         (gpointer *)&priv->old_vadj);
8390
8391           g_signal_handlers_disconnect_by_func (priv->old_vadj,
8392                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
8393                                                 widget);
8394         }
8395       priv->old_vadj = vadj;
8396       if (priv->old_vadj)
8397         {
8398           g_object_add_weak_pointer (G_OBJECT (priv->old_vadj),
8399                                      (gpointer *)&priv->old_vadj);
8400           g_signal_connect (vadj,
8401                             "value-changed",
8402                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
8403                             widget);
8404         }
8405     }
8406 }
8407
8408 static void
8409 gtk_icon_view_accessible_model_row_changed (GtkTreeModel *tree_model,
8410                                             GtkTreePath  *path,
8411                                             GtkTreeIter  *iter,
8412                                             gpointer     user_data)
8413 {
8414   AtkObject *atk_obj;
8415
8416   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
8417   g_signal_emit_by_name (atk_obj, "visible_data_changed");
8418
8419   return;
8420 }
8421
8422 static void
8423 gtk_icon_view_accessible_model_row_inserted (GtkTreeModel *tree_model,
8424                                              GtkTreePath  *path,
8425                                              GtkTreeIter  *iter,
8426                                              gpointer     user_data)
8427 {
8428   GtkIconViewAccessiblePrivate *priv;
8429   GtkIconViewItemAccessibleInfo *info;
8430   GtkIconViewAccessible *view;
8431   GtkIconViewItemAccessible *item;
8432   GList *items;
8433   GList *tmp_list;
8434   AtkObject *atk_obj;
8435   gint index;
8436
8437   index = gtk_tree_path_get_indices(path)[0];
8438   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
8439   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
8440   priv = gtk_icon_view_accessible_get_priv (atk_obj);
8441
8442   items = priv->items;
8443   tmp_list = NULL;
8444   while (items)
8445     {
8446       info = items->data;
8447       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
8448       if (info->index != item->item->index)
8449         {
8450           if (info->index < index)
8451             g_warning ("Unexpected index value on insertion %d %d", index, info->index);
8452
8453           if (tmp_list == NULL)
8454             tmp_list = items;
8455
8456           info->index = item->item->index;
8457         }
8458
8459       items = items->next;
8460     }
8461   gtk_icon_view_accessible_traverse_items (view, tmp_list);
8462   g_signal_emit_by_name (atk_obj, "children_changed::add",
8463                          index, NULL, NULL);
8464   return;
8465 }
8466
8467 static void
8468 gtk_icon_view_accessible_model_row_deleted (GtkTreeModel *tree_model,
8469                                             GtkTreePath  *path,
8470                                             gpointer     user_data)
8471 {
8472   GtkIconViewAccessiblePrivate *priv;
8473   GtkIconViewItemAccessibleInfo *info;
8474   GtkIconViewAccessible *view;
8475   GtkIconViewItemAccessible *item;
8476   GList *items;
8477   GList *tmp_list;
8478   GList *deleted_item;
8479   AtkObject *atk_obj;
8480   gint index;
8481
8482   index = gtk_tree_path_get_indices(path)[0];
8483   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
8484   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
8485   priv = gtk_icon_view_accessible_get_priv (atk_obj);
8486
8487   items = priv->items;
8488   tmp_list = NULL;
8489   deleted_item = NULL;
8490   info = NULL;
8491   while (items)
8492     {
8493       info = items->data;
8494       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
8495       if (info->index == index)
8496         {
8497           deleted_item = items;
8498         }
8499       if (info->index != item->item->index)
8500         {
8501           if (tmp_list == NULL)
8502             tmp_list = items;
8503           else
8504             info->index = item->item->index;
8505         }
8506
8507       items = items->next;
8508     }
8509   gtk_icon_view_accessible_traverse_items (view, tmp_list);
8510   if (deleted_item)
8511     {
8512       info = deleted_item->data;
8513       gtk_icon_view_item_accessible_add_state (GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item), ATK_STATE_DEFUNCT, TRUE);
8514     }
8515   g_signal_emit_by_name (atk_obj, "children_changed::remove",
8516                          index, NULL, NULL);
8517   if (deleted_item)
8518     {
8519       priv->items = g_list_remove_link (priv->items, deleted_item);
8520       g_free (info);
8521     }
8522
8523   return;
8524 }
8525
8526 static gint
8527 gtk_icon_view_accessible_item_compare (GtkIconViewItemAccessibleInfo *i1,
8528                                        GtkIconViewItemAccessibleInfo *i2)
8529 {
8530   return i1->index - i2->index;
8531 }
8532
8533 static void
8534 gtk_icon_view_accessible_model_rows_reordered (GtkTreeModel *tree_model,
8535                                                GtkTreePath  *path,
8536                                                GtkTreeIter  *iter,
8537                                                gint         *new_order,
8538                                                gpointer     user_data)
8539 {
8540   GtkIconViewAccessiblePrivate *priv;
8541   GtkIconViewItemAccessibleInfo *info;
8542   GtkIconView *icon_view;
8543   GtkIconViewItemAccessible *item;
8544   GList *items;
8545   AtkObject *atk_obj;
8546
8547   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
8548   icon_view = GTK_ICON_VIEW (user_data);
8549   priv = gtk_icon_view_accessible_get_priv (atk_obj);
8550
8551   items = priv->items;
8552   while (items)
8553     {
8554       info = items->data;
8555       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
8556       info->index = new_order[info->index];
8557       item->item = g_list_nth_data (icon_view->priv->items, info->index);
8558       items = items->next;
8559     }
8560   priv->items = g_list_sort (priv->items,
8561                              (GCompareFunc)gtk_icon_view_accessible_item_compare);
8562
8563   return;
8564 }
8565
8566 static void
8567 gtk_icon_view_accessible_disconnect_model_signals (GtkTreeModel *model,
8568                                                    GtkWidget *widget)
8569 {
8570   GObject *obj;
8571
8572   obj = G_OBJECT (model);
8573   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_changed, widget);
8574   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_inserted, widget);
8575   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_deleted, widget);
8576   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_rows_reordered, widget);
8577 }
8578
8579 static void
8580 gtk_icon_view_accessible_connect_model_signals (GtkIconView *icon_view)
8581 {
8582   GObject *obj;
8583
8584   obj = G_OBJECT (icon_view->priv->model);
8585   g_signal_connect_data (obj, "row_changed",
8586                          (GCallback) gtk_icon_view_accessible_model_row_changed,
8587                          icon_view, NULL, 0);
8588   g_signal_connect_data (obj, "row_inserted",
8589                          (GCallback) gtk_icon_view_accessible_model_row_inserted,
8590                          icon_view, NULL, G_CONNECT_AFTER);
8591   g_signal_connect_data (obj, "row_deleted",
8592                          (GCallback) gtk_icon_view_accessible_model_row_deleted,
8593                          icon_view, NULL, G_CONNECT_AFTER);
8594   g_signal_connect_data (obj, "rows_reordered",
8595                          (GCallback) gtk_icon_view_accessible_model_rows_reordered,
8596                          icon_view, NULL, G_CONNECT_AFTER);
8597 }
8598
8599 static void
8600 gtk_icon_view_accessible_clear_cache (GtkIconViewAccessiblePrivate *priv)
8601 {
8602   GtkIconViewItemAccessibleInfo *info;
8603   GList *items;
8604
8605   items = priv->items;
8606   while (items)
8607     {
8608       info = (GtkIconViewItemAccessibleInfo *) items->data;
8609       g_object_unref (info->item);
8610       g_free (items->data);
8611       items = items->next;
8612     }
8613   g_list_free (priv->items);
8614   priv->items = NULL;
8615 }
8616
8617 static void
8618 gtk_icon_view_accessible_notify_gtk (GObject *obj,
8619                                      GParamSpec *pspec)
8620 {
8621   GtkIconView *icon_view;
8622   GtkWidget *widget;
8623   AtkObject *atk_obj;
8624   GtkIconViewAccessiblePrivate *priv;
8625
8626   if (strcmp (pspec->name, "model") == 0)
8627     {
8628       widget = GTK_WIDGET (obj);
8629       atk_obj = gtk_widget_get_accessible (widget);
8630       priv = gtk_icon_view_accessible_get_priv (atk_obj);
8631       if (priv->model)
8632         {
8633           g_object_remove_weak_pointer (G_OBJECT (priv->model),
8634                                         (gpointer *)&priv->model);
8635           gtk_icon_view_accessible_disconnect_model_signals (priv->model, widget);
8636         }
8637       gtk_icon_view_accessible_clear_cache (priv);
8638
8639       icon_view = GTK_ICON_VIEW (obj);
8640       priv->model = icon_view->priv->model;
8641       /* If there is no model the GtkIconView is probably being destroyed */
8642       if (priv->model)
8643         {
8644           g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
8645           gtk_icon_view_accessible_connect_model_signals (icon_view);
8646         }
8647     }
8648
8649   return;
8650 }
8651
8652 static void
8653 gtk_icon_view_accessible_initialize (AtkObject *accessible,
8654                                      gpointer   data)
8655 {
8656   GtkIconViewAccessiblePrivate *priv;
8657   GtkIconView *icon_view;
8658
8659   if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize)
8660     ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data);
8661
8662   priv = g_new0 (GtkIconViewAccessiblePrivate, 1);
8663   g_object_set_qdata (G_OBJECT (accessible),
8664                       accessible_private_data_quark,
8665                       priv);
8666
8667   icon_view = GTK_ICON_VIEW (data);
8668   if (icon_view->priv->hadjustment)
8669     {
8670       priv->old_hadj = icon_view->priv->hadjustment;
8671       g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj);
8672       g_signal_connect (icon_view->priv->hadjustment,
8673                         "value-changed",
8674                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
8675                         icon_view);
8676     }
8677   if (icon_view->priv->vadjustment)
8678     {
8679       priv->old_vadj = icon_view->priv->vadjustment;
8680       g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj);
8681       g_signal_connect (icon_view->priv->vadjustment,
8682                         "value-changed",
8683                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
8684                         icon_view);
8685     }
8686   g_signal_connect_after (data,
8687                           "set_scroll_adjustments",
8688                           G_CALLBACK (gtk_icon_view_accessible_set_scroll_adjustments),
8689                           NULL);
8690   g_signal_connect (data,
8691                     "notify",
8692                     G_CALLBACK (gtk_icon_view_accessible_notify_gtk),
8693                     NULL);
8694
8695   priv->model = icon_view->priv->model;
8696   if (priv->model)
8697     {
8698       g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
8699       gtk_icon_view_accessible_connect_model_signals (icon_view);
8700     }
8701
8702   accessible->role = ATK_ROLE_LAYERED_PANE;
8703 }
8704
8705 static void
8706 gtk_icon_view_accessible_finalize (GObject *object)
8707 {
8708   GtkIconViewAccessiblePrivate *priv;
8709
8710   priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (object));
8711   gtk_icon_view_accessible_clear_cache (priv);
8712
8713   g_free (priv);
8714
8715   G_OBJECT_CLASS (accessible_parent_class)->finalize (object);
8716 }
8717
8718 static void
8719 gtk_icon_view_accessible_destroyed (GtkWidget *widget,
8720                                     GtkAccessible *accessible)
8721 {
8722   AtkObject *atk_obj;
8723   GtkIconViewAccessiblePrivate *priv;
8724
8725   atk_obj = ATK_OBJECT (accessible);
8726   priv = gtk_icon_view_accessible_get_priv (atk_obj);
8727   if (priv->old_hadj)
8728     {
8729       g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
8730                                     (gpointer *)&priv->old_hadj);
8731
8732       g_signal_handlers_disconnect_by_func (priv->old_hadj,
8733                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
8734                                             widget);
8735       priv->old_hadj = NULL;
8736     }
8737   if (priv->old_vadj)
8738     {
8739       g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
8740                                     (gpointer *)&priv->old_vadj);
8741
8742       g_signal_handlers_disconnect_by_func (priv->old_vadj,
8743                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
8744                                             widget);
8745       priv->old_vadj = NULL;
8746     }
8747 }
8748
8749 static void
8750 gtk_icon_view_accessible_connect_widget_destroyed (GtkAccessible *accessible)
8751 {
8752   if (accessible->widget)
8753     {
8754       g_signal_connect_after (accessible->widget,
8755                               "destroy",
8756                               G_CALLBACK (gtk_icon_view_accessible_destroyed),
8757                               accessible);
8758     }
8759   GTK_ACCESSIBLE_CLASS (accessible_parent_class)->connect_widget_destroyed (accessible);
8760 }
8761
8762 static void
8763 gtk_icon_view_accessible_class_init (AtkObjectClass *klass)
8764 {
8765   GObjectClass *gobject_class;
8766   GtkAccessibleClass *accessible_class;
8767
8768   accessible_parent_class = g_type_class_peek_parent (klass);
8769
8770   gobject_class = (GObjectClass *)klass;
8771   accessible_class = (GtkAccessibleClass *)klass;
8772
8773   gobject_class->finalize = gtk_icon_view_accessible_finalize;
8774
8775   klass->get_n_children = gtk_icon_view_accessible_get_n_children;
8776   klass->ref_child = gtk_icon_view_accessible_ref_child;
8777   klass->initialize = gtk_icon_view_accessible_initialize;
8778
8779   accessible_class->connect_widget_destroyed = gtk_icon_view_accessible_connect_widget_destroyed;
8780
8781   accessible_private_data_quark = g_quark_from_static_string ("icon_view-accessible-private-data");
8782 }
8783
8784 static AtkObject*
8785 gtk_icon_view_accessible_ref_accessible_at_point (AtkComponent *component,
8786                                                   gint          x,
8787                                                   gint          y,
8788                                                   AtkCoordType  coord_type)
8789 {
8790   GtkWidget *widget;
8791   GtkIconView *icon_view;
8792   GtkIconViewItem *item;
8793   gint x_pos, y_pos;
8794
8795   widget = GTK_ACCESSIBLE (component)->widget;
8796   if (widget == NULL)
8797   /* State is defunct */
8798     return NULL;
8799
8800   icon_view = GTK_ICON_VIEW (widget);
8801   atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type);
8802   item = gtk_icon_view_get_item_at_coords (icon_view, x - x_pos, y - y_pos, TRUE, NULL);
8803   if (item)
8804     return gtk_icon_view_accessible_ref_child (ATK_OBJECT (component), item->index);
8805
8806   return NULL;
8807 }
8808
8809 static void
8810 atk_component_interface_init (AtkComponentIface *iface)
8811 {
8812   iface->ref_accessible_at_point = gtk_icon_view_accessible_ref_accessible_at_point;
8813 }
8814
8815 static gboolean
8816 gtk_icon_view_accessible_add_selection (AtkSelection *selection,
8817                                         gint i)
8818 {
8819   GtkWidget *widget;
8820   GtkIconView *icon_view;
8821   GtkIconViewItem *item;
8822
8823   widget = GTK_ACCESSIBLE (selection)->widget;
8824   if (widget == NULL)
8825     return FALSE;
8826
8827   icon_view = GTK_ICON_VIEW (widget);
8828
8829   item = g_list_nth_data (icon_view->priv->items, i);
8830
8831   if (!item)
8832     return FALSE;
8833
8834   gtk_icon_view_select_item (icon_view, item);
8835
8836   return TRUE;
8837 }
8838
8839 static gboolean
8840 gtk_icon_view_accessible_clear_selection (AtkSelection *selection)
8841 {
8842   GtkWidget *widget;
8843   GtkIconView *icon_view;
8844
8845   widget = GTK_ACCESSIBLE (selection)->widget;
8846   if (widget == NULL)
8847     return FALSE;
8848
8849   icon_view = GTK_ICON_VIEW (widget);
8850   gtk_icon_view_unselect_all (icon_view);
8851
8852   return TRUE;
8853 }
8854
8855 static AtkObject*
8856 gtk_icon_view_accessible_ref_selection (AtkSelection *selection,
8857                                         gint          i)
8858 {
8859   GtkWidget *widget;
8860   GtkIconView *icon_view;
8861   GtkIconViewItem *item;
8862   GList *l;
8863
8864   widget = GTK_ACCESSIBLE (selection)->widget;
8865   if (widget == NULL)
8866     return NULL;
8867
8868   icon_view = GTK_ICON_VIEW (widget);
8869
8870   l = icon_view->priv->items;
8871   while (l)
8872     {
8873       item = l->data;
8874       if (item->selected)
8875         {
8876           if (i == 0)
8877             return atk_object_ref_accessible_child (gtk_widget_get_accessible (widget), item->index);
8878           else
8879             i--;
8880         }
8881       l = l->next;
8882     }
8883
8884   return NULL;
8885 }
8886
8887 static gint
8888 gtk_icon_view_accessible_get_selection_count (AtkSelection *selection)
8889 {
8890   GtkWidget *widget;
8891   GtkIconView *icon_view;
8892   GtkIconViewItem *item;
8893   GList *l;
8894   gint count;
8895
8896   widget = GTK_ACCESSIBLE (selection)->widget;
8897   if (widget == NULL)
8898     return 0;
8899
8900   icon_view = GTK_ICON_VIEW (widget);
8901
8902   l = icon_view->priv->items;
8903   count = 0;
8904   while (l)
8905     {
8906       item = l->data;
8907
8908       if (item->selected)
8909         count++;
8910
8911       l = l->next;
8912     }
8913
8914   return count;
8915 }
8916
8917 static gboolean
8918 gtk_icon_view_accessible_is_child_selected (AtkSelection *selection,
8919                                             gint          i)
8920 {
8921   GtkWidget *widget;
8922   GtkIconView *icon_view;
8923   GtkIconViewItem *item;
8924
8925   widget = GTK_ACCESSIBLE (selection)->widget;
8926   if (widget == NULL)
8927     return FALSE;
8928
8929   icon_view = GTK_ICON_VIEW (widget);
8930
8931   item = g_list_nth_data (icon_view->priv->items, i);
8932   if (!item)
8933     return FALSE;
8934
8935   return item->selected;
8936 }
8937
8938 static gboolean
8939 gtk_icon_view_accessible_remove_selection (AtkSelection *selection,
8940                                            gint          i)
8941 {
8942   GtkWidget *widget;
8943   GtkIconView *icon_view;
8944   GtkIconViewItem *item;
8945   GList *l;
8946   gint count;
8947
8948   widget = GTK_ACCESSIBLE (selection)->widget;
8949   if (widget == NULL)
8950     return FALSE;
8951
8952   icon_view = GTK_ICON_VIEW (widget);
8953   l = icon_view->priv->items;
8954   count = 0;
8955   while (l)
8956     {
8957       item = l->data;
8958       if (item->selected)
8959         {
8960           if (count == i)
8961             {
8962               gtk_icon_view_unselect_item (icon_view, item);
8963               return TRUE;
8964             }
8965           count++;
8966         }
8967       l = l->next;
8968     }
8969
8970   return FALSE;
8971 }
8972
8973 static gboolean
8974 gtk_icon_view_accessible_select_all_selection (AtkSelection *selection)
8975 {
8976   GtkWidget *widget;
8977   GtkIconView *icon_view;
8978
8979   widget = GTK_ACCESSIBLE (selection)->widget;
8980   if (widget == NULL)
8981     return FALSE;
8982
8983   icon_view = GTK_ICON_VIEW (widget);
8984   gtk_icon_view_select_all (icon_view);
8985   return TRUE;
8986 }
8987
8988 static void
8989 gtk_icon_view_accessible_selection_interface_init (AtkSelectionIface *iface)
8990 {
8991   iface->add_selection = gtk_icon_view_accessible_add_selection;
8992   iface->clear_selection = gtk_icon_view_accessible_clear_selection;
8993   iface->ref_selection = gtk_icon_view_accessible_ref_selection;
8994   iface->get_selection_count = gtk_icon_view_accessible_get_selection_count;
8995   iface->is_child_selected = gtk_icon_view_accessible_is_child_selected;
8996   iface->remove_selection = gtk_icon_view_accessible_remove_selection;
8997   iface->select_all_selection = gtk_icon_view_accessible_select_all_selection;
8998 }
8999
9000 static GType
9001 gtk_icon_view_accessible_get_type (void)
9002 {
9003   static GType type = 0;
9004
9005   if (!type)
9006     {
9007       static GTypeInfo tinfo =
9008       {
9009         0, /* class size */
9010         (GBaseInitFunc) NULL, /* base init */
9011         (GBaseFinalizeFunc) NULL, /* base finalize */
9012         (GClassInitFunc) gtk_icon_view_accessible_class_init,
9013         (GClassFinalizeFunc) NULL, /* class finalize */
9014         NULL, /* class data */
9015         0, /* instance size */
9016         0, /* nb preallocs */
9017         (GInstanceInitFunc) NULL, /* instance init */
9018         NULL /* value table */
9019       };
9020       static const GInterfaceInfo atk_component_info =
9021       {
9022         (GInterfaceInitFunc) atk_component_interface_init,
9023         (GInterfaceFinalizeFunc) NULL,
9024         NULL
9025       };
9026       static const GInterfaceInfo atk_selection_info =
9027       {
9028         (GInterfaceInitFunc) gtk_icon_view_accessible_selection_interface_init,
9029         (GInterfaceFinalizeFunc) NULL,
9030         NULL
9031       };
9032
9033       /*
9034        * Figure out the size of the class and instance
9035        * we are deriving from
9036        */
9037       AtkObjectFactory *factory;
9038       GType derived_type;
9039       GTypeQuery query;
9040       GType derived_atk_type;
9041
9042       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
9043       factory = atk_registry_get_factory (atk_get_default_registry (),
9044                                           derived_type);
9045       derived_atk_type = atk_object_factory_get_accessible_type (factory);
9046       g_type_query (derived_atk_type, &query);
9047       tinfo.class_size = query.class_size;
9048       tinfo.instance_size = query.instance_size;
9049
9050       type = g_type_register_static (derived_atk_type,
9051                                      "GtkIconViewAccessible",
9052                                      &tinfo, 0);
9053       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
9054                                    &atk_component_info);
9055       g_type_add_interface_static (type, ATK_TYPE_SELECTION,
9056                                    &atk_selection_info);
9057     }
9058   return type;
9059 }
9060
9061 static AtkObject *
9062 gtk_icon_view_accessible_new (GObject *obj)
9063 {
9064   AtkObject *accessible;
9065
9066   g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
9067
9068   accessible = g_object_new (gtk_icon_view_accessible_get_type (), NULL);
9069   atk_object_initialize (accessible, obj);
9070
9071   return accessible;
9072 }
9073
9074 static GType
9075 gtk_icon_view_accessible_factory_get_accessible_type (void)
9076 {
9077   return gtk_icon_view_accessible_get_type ();
9078 }
9079
9080 static AtkObject*
9081 gtk_icon_view_accessible_factory_create_accessible (GObject *obj)
9082 {
9083   return gtk_icon_view_accessible_new (obj);
9084 }
9085
9086 static void
9087 gtk_icon_view_accessible_factory_class_init (AtkObjectFactoryClass *klass)
9088 {
9089   klass->create_accessible = gtk_icon_view_accessible_factory_create_accessible;
9090   klass->get_accessible_type = gtk_icon_view_accessible_factory_get_accessible_type;
9091 }
9092
9093 static GType
9094 gtk_icon_view_accessible_factory_get_type (void)
9095 {
9096   static GType type = 0;
9097
9098   if (!type)
9099     {
9100       const GTypeInfo tinfo =
9101       {
9102         sizeof (AtkObjectFactoryClass),
9103         NULL,           /* base_init */
9104         NULL,           /* base_finalize */
9105         (GClassInitFunc) gtk_icon_view_accessible_factory_class_init,
9106         NULL,           /* class_finalize */
9107         NULL,           /* class_data */
9108         sizeof (AtkObjectFactory),
9109         0,             /* n_preallocs */
9110         NULL, NULL
9111       };
9112
9113       type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
9114                                     "GtkIconViewAccessibleFactory",
9115                                     &tinfo, 0);
9116     }
9117   return type;
9118 }
9119
9120
9121 static AtkObject *
9122 gtk_icon_view_get_accessible (GtkWidget *widget)
9123 {
9124   static gboolean first_time = TRUE;
9125
9126   if (first_time)
9127     {
9128       AtkObjectFactory *factory;
9129       AtkRegistry *registry;
9130       GType derived_type;
9131       GType derived_atk_type;
9132
9133       /*
9134        * Figure out whether accessibility is enabled by looking at the
9135        * type of the accessible object which would be created for
9136        * the parent type of GtkIconView.
9137        */
9138       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
9139
9140       registry = atk_get_default_registry ();
9141       factory = atk_registry_get_factory (registry,
9142                                           derived_type);
9143       derived_atk_type = atk_object_factory_get_accessible_type (factory);
9144       if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
9145         atk_registry_set_factory_type (registry,
9146                                        GTK_TYPE_ICON_VIEW,
9147                                        gtk_icon_view_accessible_factory_get_type ());
9148       first_time = FALSE;
9149     }
9150   return (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->get_accessible) (widget);
9151 }
9152
9153 #define __GTK_ICON_VIEW_C__
9154 #include "gtkaliasdef.c"