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 "gtkalias.h"
  28 #include "gtkiconview.h"
  29 #include "gtkmarshalers.h"
  30 #include "gtkbindings.h"
  31 #include "gtkdnd.h"
  32 #include "gtkmain.h"
  33 #include "gtksignal.h"
  34 #include "gtkintl.h"
  35 #include "gtkaccessible.h"
  36 #include "gtkwindow.h"
  37 #include "gtktextbuffer.h"
  38
  39 #define ICON_TEXT_PADDING 3
  40
  41 #define GTK_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ICON_VIEW, GtkIconViewPrivate))
  42 #define VALID_MODEL_AND_COLUMNS(obj) ((obj)->priv->model != NULL && \
  43                                       ((obj)->priv->pixbuf_column != -1 || \
  44                                        (obj)->priv->text_column != -1 || \
  45                                        (obj)->priv->markup_column != -1))
  46
  47 typedef struct
  48 {
  49   GtkTreeIter iter;
  50   int index;
  51
  52   gint row, col;
  53
  54   /* Bounding boxes */
  55   gint x, y;
  56   gint width, height;
  57
  58   gint pixbuf_x, pixbuf_y;
  59   gint pixbuf_height, pixbuf_width;
  60
  61   gint layout_x, layout_y;
  62   gint layout_width, layout_height;
  63
  64   guint selected : 1;
  65   guint selected_before_rubberbanding : 1;
  66 } GtkIconViewItem;
  67
  68 struct _GtkIconViewPrivate
  69 {
  70   gint width, height;
  71
  72   gint text_column;
  73   gint markup_column;
  74   gint pixbuf_column;
  75
  76   GtkSelectionMode selection_mode;
  77
  78   GdkWindow *bin_window;
  79
  80   GtkTreeModel *model;
  81
  82   GList *items;
  83
  84   GtkAdjustment *hadjustment;
  85   GtkAdjustment *vadjustment;
  86
  87   guint layout_idle_id;
  88
  89   gboolean doing_rubberband;
  90   gint rubberband_x1, rubberband_y1;
  91   gint rubberband_x2, rubberband_y2;
  92
  93   guint scroll_timeout_id;
  94   gint scroll_value_diff;
  95   gint event_last_x, event_last_y;
  96
  97   GtkIconViewItem *anchor_item;
  98   GtkIconViewItem *cursor_item;
  99
 100   guint ctrl_pressed : 1;
 101   guint shift_pressed : 1;
 102
 103   GtkIconViewItem *last_single_clicked;
 104
 105 #ifdef DND_WORKS
 106   /* Drag-and-drop. */
 107   gint pressed_button;
 108   gint press_start_x;
 109   gint press_start_y;
 110 #endif
 111
 112   /* Layout used to draw icon text */
 113   PangoLayout *layout;
 114
 115   GtkOrientation orientation;
 116
 117   gint columns;
 118   gint item_width;
 119   gint spacing;
 120   gint row_spacing;
 121   gint column_spacing;
 122   gint margin;
 123 };
 124
 125 /* Signals */
 126 enum
 127 {
 128   ITEM_ACTIVATED,
 129   SELECTION_CHANGED,
 130   SELECT_ALL,
 131   UNSELECT_ALL,
 132   SELECT_CURSOR_ITEM,
 133   TOGGLE_CURSOR_ITEM,
 134   MOVE_CURSOR,
 135   ACTIVATE_CURSOR_ITEM,
 136   LAST_SIGNAL
 137 };
 138
 139 /* Properties */
 140 enum
 141 {
 142   PROP_0,
 143   PROP_PIXBUF_COLUMN,
 144   PROP_TEXT_COLUMN,
 145   PROP_MARKUP_COLUMN,
 146   PROP_SELECTION_MODE,
 147   PROP_ORIENTATION,
 148   PROP_MODEL,
 149   PROP_COLUMNS,
 150   PROP_ITEM_WIDTH,
 151   PROP_SPACING,
 152   PROP_ROW_SPACING,
 153   PROP_COLUMN_SPACING,
 154   PROP_MARGIN
 155 };
 156
 157 /* GObject signals */
 158 static void gtk_icon_view_finalize     (GObject      *object);
 159 static void gtk_icon_view_set_property (GObject      *object,
 160                                         guint         prop_id,
 161                                         const GValue *value,
 162                                         GParamSpec   *pspec);
 163 static void gtk_icon_view_get_property (GObject      *object,
 164                                         guint         prop_id,
 165                                         GValue       *value,
 166                                         GParamSpec   *pspec);
 167
 168
 169 /* GtkObject signals */
 170 static void gtk_icon_view_destroy (GtkObject *object);
 171
 172 /* GtkWidget signals */
 173 static void     gtk_icon_view_realize        (GtkWidget      *widget);
 174 static void     gtk_icon_view_unrealize      (GtkWidget      *widget);
 175 static void     gtk_icon_view_map            (GtkWidget      *widget);
 176 static void     gtk_icon_view_size_request   (GtkWidget      *widget,
 177                                               GtkRequisition *requisition);
 178 static void     gtk_icon_view_size_allocate  (GtkWidget      *widget,
 179                                               GtkAllocation  *allocation);
 180 static gboolean gtk_icon_view_expose         (GtkWidget      *widget,
 181                                               GdkEventExpose *expose);
 182 static gboolean gtk_icon_view_motion         (GtkWidget      *widget,
 183                                               GdkEventMotion *event);
 184 static gboolean gtk_icon_view_button_press   (GtkWidget      *widget,
 185                                               GdkEventButton *event);
 186 static gboolean gtk_icon_view_button_release (GtkWidget      *widget,
 187                                               GdkEventButton *event);
 188 /* GtkIconView signals */
 189 static void     gtk_icon_view_set_adjustments           (GtkIconView   *icon_view,
 190                                                          GtkAdjustment *hadj,
 191                                                          GtkAdjustment *vadj);
 192 static void     gtk_icon_view_real_select_all           (GtkIconView   *icon_view);
 193 static void     gtk_icon_view_real_unselect_all         (GtkIconView   *icon_view);
 194 static void     gtk_icon_view_real_select_cursor_item   (GtkIconView   *icon_view);
 195 static void     gtk_icon_view_real_toggle_cursor_item   (GtkIconView   *icon_view);
 196 static gboolean gtk_icon_view_real_activate_cursor_item (GtkIconView   *icon_view);
 197
 198 /* Internal functions */
 199 static void       gtk_icon_view_adjustment_changed          (GtkAdjustment   *adjustment,
 200                                                              GtkIconView     *icon_view);
 201 static void       gtk_icon_view_layout                      (GtkIconView     *icon_view);
 202 static void       gtk_icon_view_paint_item                  (GtkIconView     *icon_view,
 203                                                              GtkIconViewItem *item,
 204                                                              GdkRectangle    *area);
 205 static void       gtk_icon_view_paint_rubberband            (GtkIconView     *icon_view,
 206                                                              GdkRectangle    *area);
 207 static void       gtk_icon_view_queue_draw_item             (GtkIconView     *icon_view,
 208                                                              GtkIconViewItem *item);
 209 static void       gtk_icon_view_queue_layout                (GtkIconView     *icon_view);
 210 static void       gtk_icon_view_set_cursor_item             (GtkIconView     *icon_view,
 211                                                              GtkIconViewItem *item);
 212 static void       gtk_icon_view_start_rubberbanding         (GtkIconView     *icon_view,
 213                                                              gint             x,
 214                                                              gint             y);
 215 static void       gtk_icon_view_stop_rubberbanding          (GtkIconView     *icon_view);
 216 static void       gtk_icon_view_update_rubberband_selection (GtkIconView     *icon_view);
 217 static gboolean   gtk_icon_view_item_hit_test               (GtkIconViewItem *item,
 218                                                              gint             x,
 219                                                              gint             y,
 220                                                              gint             width,
 221                                                              gint             height);
 222 #ifdef DND_WORKS
 223 static gboolean   gtk_icon_view_maybe_begin_dragging_items  (GtkIconView     *icon_view,
 224                                                              GdkEventMotion  *event);
 225 #endif
 226 static gboolean   gtk_icon_view_unselect_all_internal       (GtkIconView     *icon_view);
 227 static void       gtk_icon_view_calculate_item_size         (GtkIconView     *icon_view,
 228                                                              GtkIconViewItem *item,
 229                                                              gint             item_width);
 230 static void       gtk_icon_view_update_rubberband           (gpointer         data);
 231 static void       gtk_icon_view_item_invalidate_size        (GtkIconViewItem *item);
 232 static void       gtk_icon_view_invalidate_sizes            (GtkIconView     *icon_view);
 233 static void       gtk_icon_view_add_move_binding            (GtkBindingSet   *binding_set,
 234                                                              guint            keyval,
 235                                                              guint            modmask,
 236                                                              GtkMovementStep  step,
 237                                                              gint             count);
 238 static gboolean   gtk_icon_view_real_move_cursor            (GtkIconView     *icon_view,
 239                                                              GtkMovementStep  step,
 240                                                              gint             count);
 241 static void       gtk_icon_view_move_cursor_up_down         (GtkIconView     *icon_view,
 242                                                              gint             count);
 243 static void       gtk_icon_view_move_cursor_page_up_down    (GtkIconView     *icon_view,
 244                                                              gint             count);
 245 static void       gtk_icon_view_move_cursor_left_right      (GtkIconView     *icon_view,
 246                                                              gint             count);
 247 static void       gtk_icon_view_move_cursor_start_end       (GtkIconView     *icon_view,
 248                                                              gint             count);
 249 static void       gtk_icon_view_scroll_to_item              (GtkIconView     *icon_view,
 250                                                              GtkIconViewItem *item);
 251 static GdkPixbuf *gtk_icon_view_get_item_icon               (GtkIconView     *icon_view,
 252                                                              GtkIconViewItem *item);
 253 static void       gtk_icon_view_update_item_text            (GtkIconView     *icon_view,
 254                                                              GtkIconViewItem *item);
 255 static void       gtk_icon_view_select_item                 (GtkIconView     *icon_view,
 256                                                              GtkIconViewItem *item);
 257 static void       gtk_icon_view_unselect_item               (GtkIconView     *icon_view,
 258                                                              GtkIconViewItem *item);
 259 static gboolean gtk_icon_view_select_all_between            (GtkIconView     *icon_view,
 260                                                              GtkIconViewItem *anchor,
 261                                                              GtkIconViewItem *cursor);
 262
 263 static GtkIconViewItem *gtk_icon_view_get_item_at_pos (GtkIconView *icon_view,
 264                                                        gint         x,
 265                                                        gint         y);
 266
 267
 268 /* Accessibility Support */
 269 static AtkObject       *gtk_icon_view_get_accessible  (GtkWidget   *widget);
 270
 271 static GtkContainerClass *parent_class = NULL;
 272 static guint icon_view_signals[LAST_SIGNAL] = { 0 };
 273
 274 G_DEFINE_TYPE (GtkIconView, gtk_icon_view, GTK_TYPE_CONTAINER);
 275
 276 static void
 277 gtk_icon_view_class_init (GtkIconViewClass *klass)
 278 {
 279   GObjectClass *gobject_class;
 280   GtkObjectClass *object_class;
 281   GtkWidgetClass *widget_class;
 282   GtkBindingSet *binding_set;
 283
 284   parent_class = g_type_class_peek_parent (klass);
 285   binding_set = gtk_binding_set_by_class (klass);
 286
 287   g_type_class_add_private (klass, sizeof (GtkIconViewPrivate));
 288
 289   gobject_class = (GObjectClass *) klass;
 290   object_class = (GtkObjectClass *) klass;
 291   widget_class = (GtkWidgetClass *) klass;
 292
 293   gobject_class->finalize = gtk_icon_view_finalize;
 294   gobject_class->set_property = gtk_icon_view_set_property;
 295   gobject_class->get_property = gtk_icon_view_get_property;
 296
 297   object_class->destroy = gtk_icon_view_destroy;
 298
 299   widget_class->realize = gtk_icon_view_realize;
 300   widget_class->unrealize = gtk_icon_view_unrealize;
 301   widget_class->map = gtk_icon_view_map;
 302   widget_class->size_request = gtk_icon_view_size_request;
 303   widget_class->size_allocate = gtk_icon_view_size_allocate;
 304   widget_class->expose_event = gtk_icon_view_expose;
 305   widget_class->motion_notify_event = gtk_icon_view_motion;
 306   widget_class->button_press_event = gtk_icon_view_button_press;
 307   widget_class->button_release_event = gtk_icon_view_button_release;
 308   widget_class->get_accessible = gtk_icon_view_get_accessible;
 309
 310   klass->set_scroll_adjustments = gtk_icon_view_set_adjustments;
 311   klass->select_all = gtk_icon_view_real_select_all;
 312   klass->unselect_all = gtk_icon_view_real_unselect_all;
 313   klass->select_cursor_item = gtk_icon_view_real_select_cursor_item;
 314   klass->toggle_cursor_item = gtk_icon_view_real_toggle_cursor_item;
 315   klass->activate_cursor_item = gtk_icon_view_real_activate_cursor_item;
 316   klass->move_cursor = gtk_icon_view_real_move_cursor;
 317
 318   /* Properties */
 319   /**
 320    * GtkIconView:selection-mode:
 321    *
 322    * The ::selection-mode property specifies the selection mode of
 323    * icon view. If the mode is #GTK_SELECTION_MULTIPLE, rubberband selection
 324    * is enabled, for the other modes, only keyboard selection is possible.
 325    *
 326    * Since: 2.6
 327    */
 328   g_object_class_install_property (gobject_class,
 329                                    PROP_SELECTION_MODE,
 330                                    g_param_spec_enum ("selection_mode",
 331                                                       P_("Selection mode"),
 332                                                       P_("The selection mode"),
 333                                                       GTK_TYPE_SELECTION_MODE,
 334                                                       GTK_SELECTION_SINGLE,
 335                                                       G_PARAM_READWRITE));
 336
 337   /**
 338    * GtkIconView:pixbuf-column:
 339    *
 340    * The ::pixbuf-column property contains the number of the model column
 341    * containing the pixbufs which are displayed. The pixbuf column must be
 342    * of type #GDK_TYPE_PIXBUF. Setting this property to -1 turns off the
 343    * display of pixbufs.
 344    *
 345    * Since: 2.6
 346    */
 347   g_object_class_install_property (gobject_class,
 348                                    PROP_PIXBUF_COLUMN,
 349                                    g_param_spec_int ("pixbuf_column",
 350                                                      P_("Pixbuf column"),
 351                                                      P_("Model column used to retrieve the icon pixbuf from"),
 352                                                      -1, G_MAXINT, -1,
 353                                                      G_PARAM_READWRITE));
 354
 355   /**
 356    * GtkIconView:text-column:
 357    *
 358    * The ::text-column property contains the number of the model column
 359    * containing the texts which are displayed. The text column must be
 360    * of type #G_TYPE_STRING. If this property and the :markup-column
 361    * property are both set to -1, no texts are displayed.
 362    *
 363    * Since: 2.6
 364    */
 365   g_object_class_install_property (gobject_class,
 366                                    PROP_TEXT_COLUMN,
 367                                    g_param_spec_int ("text_column",
 368                                                      P_("Text column"),
 369                                                      P_("Model column used to retrieve the text from"),
 370                                                      -1, G_MAXINT, -1,
 371                                                      G_PARAM_READWRITE));
 372
 373
 374   /**
 375    * GtkIconView:markup-column:
 376    *
 377    * The ::markup-column property contains the number of the model column
 378    * containing markup information to be displayed. The markup column must be
 379    * of type #G_TYPE_STRING. If this property and the :text-column property
 380    * are both set to column numbers, it overrides the text column.
 381    * If both are set to -1, no texts are displayed.
 382    *
 383    * Since: 2.6
 384    */
 385   g_object_class_install_property (gobject_class,
 386                                    PROP_MARKUP_COLUMN,
 387                                    g_param_spec_int ("markup_column",
 388                                                      P_("Markup column"),
 389                                                      P_("Model column used to retrieve the text if using Pango markup"),
 390                                                      -1, G_MAXINT, -1,
 391                                                      G_PARAM_READWRITE));
 392
 393   g_object_class_install_property (gobject_class,
 394                                    PROP_MODEL,
 395                                    g_param_spec_object ("model",
 396                                                         P_("Icon View Model"),
 397                                                         P_("The model for the icon view"),
 398                                                         GTK_TYPE_TREE_MODEL,
 399                                                         G_PARAM_READWRITE));
 400
 401   /**
 402    * GtkIconView:columns:
 403    *
 404    * The columns property contains the number of the columns in which the
 405    * items should be displayed. If it is -1, the number of columns will
 406    * be chosen automatically to fill the available area.
 407    *
 408    * Since: 2.6
 409    */
 410   g_object_class_install_property (gobject_class,
 411                                    PROP_COLUMNS,
 412                                    g_param_spec_int ("columns",
 413                                                      P_("Number of columns"),
 414                                                      P_("Number of columns to display"),
 415                                                      -1, G_MAXINT, -1,
 416                                                      G_PARAM_READWRITE));
 417
 418
 419   /**
 420    * GtkIconView::item-width:
 421    *
 422    * The item-width property specifies the width to use for each item.
 423    * If it is set to -1, the icon view will automatically determine a
 424    * suitable item size.
 425    *
 426    * Since: 2.6
 427    */
 428   g_object_class_install_property (gobject_class,
 429                                    PROP_ITEM_WIDTH,
 430                                    g_param_spec_int ("item_width",
 431                                                      P_("Width for each item"),
 432                                                      P_("The width used for each item"),
 433                                                      -1, G_MAXINT, -1,
 434                                                      G_PARAM_READWRITE));
 435
 436   /**
 437    * GtkIconView::spacing:
 438    *
 439    * The spacing property specifies the space which is inserted between
 440    * the cells (i.e. the icon and the text) of an item.
 441    *
 442    * Since: 2.6
 443    */
 444   g_object_class_install_property (gobject_class,
 445                                    PROP_SPACING,
 446                                    g_param_spec_int ("spacing",
 447                                                      P_("Spacing"),
 448                                                      P_("Space which is inserted between cells of an item"),
 449                                                      0, G_MAXINT, 0,
 450                                                      G_PARAM_READWRITE));
 451
 452   /**
 453    * GtkIconView::row-spacing:
 454    *
 455    * The row-spacing property specifies the space which is inserted between
 456    * the rows of the icon view.
 457    *
 458    * Since: 2.6
 459    */
 460   g_object_class_install_property (gobject_class,
 461                                    PROP_ROW_SPACING,
 462                                    g_param_spec_int ("row_spacing",
 463                                                      P_("Row Spacing"),
 464                                                      P_("Space which is inserted between grid rows"),
 465                                                      0, G_MAXINT, 6,
 466                                                      G_PARAM_READWRITE));
 467
 468   /**
 469    * GtkIconView::column-spacing:
 470    *
 471    * The column-spacing property specifies the space which is inserted between
 472    * the columns of the icon view.
 473    *
 474    * Since: 2.6
 475    */
 476   g_object_class_install_property (gobject_class,
 477                                    PROP_COLUMN_SPACING,
 478                                    g_param_spec_int ("column_spacing",
 479                                                      P_("Column Spacing"),
 480                                                      P_("Space which is inserted between grid column"),
 481                                                      0, G_MAXINT, 6,
 482                                                      G_PARAM_READWRITE));
 483
 484   /**
 485    * GtkIconView::margin:
 486    *
 487    * The margin property specifies the space which is inserted
 488    * at the edges of the icon view.
 489    *
 490    * Since: 2.6
 491    */
 492   g_object_class_install_property (gobject_class,
 493                                    PROP_MARGIN,
 494                                    g_param_spec_int ("margin",
 495                                                      P_("Margin"),
 496                                                      P_("Space which is inserted at the edges of the icon view"),
 497                                                      0, G_MAXINT, 6,
 498                                                      G_PARAM_READWRITE));
 499
 500
 501   /**
 502    * GtkIconView::orientation:
 503    *
 504    * The orientation property specifies how the cells (i.e. the icon and
 505    * the text) of the item are positioned relative to each other.
 506    *
 507    * Since: 2.6
 508    */
 509   g_object_class_install_property (gobject_class,
 510                                    PROP_ORIENTATION,
 511                                    g_param_spec_enum ("orientation",
 512                                                       P_("Orientation"),
 513                                                       P_("How the text and icon of each item are positioned relative to each other"),
 514                                                       GTK_TYPE_ORIENTATION,
 515                                                       GTK_ORIENTATION_VERTICAL,
 516                                                       G_PARAM_READWRITE));
 517
 518   /* Style properties */
 519   gtk_widget_class_install_style_property (widget_class,
 520                                            g_param_spec_boxed ("selection_box_color",
 521                                                                P_("Selection Box Color"),
 522                                                                P_("Color of the selection box"),
 523                                                                GDK_TYPE_COLOR,
 524                                                                G_PARAM_READABLE));
 525
 526   gtk_widget_class_install_style_property (widget_class,
 527                                            g_param_spec_uchar ("selection_box_alpha",
 528                                                                P_("Selection Box Alpha"),
 529                                                                P_("Opacity of the selection box"),
 530                                                                0, 0xff,
 531                                                                0x40,
 532                                                                G_PARAM_READABLE));
 533
 534   /* Signals */
 535   widget_class->set_scroll_adjustments_signal =
 536     g_signal_new ("set_scroll_adjustments",
 537                   G_TYPE_FROM_CLASS (gobject_class),
 538                   G_SIGNAL_RUN_LAST,
 539                   G_STRUCT_OFFSET (GtkIconViewClass, set_scroll_adjustments),
 540                   NULL, NULL,
 541                   _gtk_marshal_VOID__OBJECT_OBJECT,
 542                   G_TYPE_NONE, 2,
 543                   GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
 544
 545   icon_view_signals[ITEM_ACTIVATED] =
 546     g_signal_new ("item_activated",
 547                   G_TYPE_FROM_CLASS (gobject_class),
 548                   G_SIGNAL_RUN_LAST,
 549                   G_STRUCT_OFFSET (GtkIconViewClass, item_activated),
 550                   NULL, NULL,
 551                   g_cclosure_marshal_VOID__BOXED,
 552                   G_TYPE_NONE, 1,
 553                   GTK_TYPE_TREE_PATH);
 554
 555   icon_view_signals[SELECTION_CHANGED] =
 556     g_signal_new ("selection_changed",
 557                   G_TYPE_FROM_CLASS (gobject_class),
 558                   G_SIGNAL_RUN_FIRST,
 559                   G_STRUCT_OFFSET (GtkIconViewClass, selection_changed),
 560                   NULL, NULL,
 561                   g_cclosure_marshal_VOID__VOID,
 562                   G_TYPE_NONE, 0);
 563
 564   icon_view_signals[SELECT_ALL] =
 565     g_signal_new ("select_all",
 566                   G_TYPE_FROM_CLASS (gobject_class),
 567                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 568                   G_STRUCT_OFFSET (GtkIconViewClass, select_all),
 569                   NULL, NULL,
 570                   g_cclosure_marshal_VOID__VOID,
 571                   G_TYPE_NONE, 0);
 572
 573   icon_view_signals[UNSELECT_ALL] =
 574     g_signal_new ("unselect_all",
 575                   G_TYPE_FROM_CLASS (gobject_class),
 576                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 577                   G_STRUCT_OFFSET (GtkIconViewClass, unselect_all),
 578                   NULL, NULL,
 579                   g_cclosure_marshal_VOID__VOID,
 580                   G_TYPE_NONE, 0);
 581
 582   icon_view_signals[SELECT_CURSOR_ITEM] =
 583     g_signal_new ("select_cursor_item",
 584                   G_TYPE_FROM_CLASS (gobject_class),
 585                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 586                   G_STRUCT_OFFSET (GtkIconViewClass, select_cursor_item),
 587                   NULL, NULL,
 588                   g_cclosure_marshal_VOID__VOID,
 589                   G_TYPE_NONE, 0);
 590
 591   icon_view_signals[TOGGLE_CURSOR_ITEM] =
 592     g_signal_new ("toggle_cursor_item",
 593                   G_TYPE_FROM_CLASS (gobject_class),
 594                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 595                   G_STRUCT_OFFSET (GtkIconViewClass, toggle_cursor_item),
 596                   NULL, NULL,
 597                   g_cclosure_marshal_VOID__VOID,
 598                   G_TYPE_NONE, 0);
 599
 600   icon_view_signals[ACTIVATE_CURSOR_ITEM] =
 601     g_signal_new ("activate_cursor_item",
 602                   G_TYPE_FROM_CLASS (gobject_class),
 603                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 604                   G_STRUCT_OFFSET (GtkIconViewClass, activate_cursor_item),
 605                   NULL, NULL,
 606                   _gtk_marshal_BOOLEAN__VOID,
 607                   G_TYPE_BOOLEAN, 0);
 608
 609   icon_view_signals[MOVE_CURSOR] =
 610     g_signal_new ("move_cursor",
 611                   G_TYPE_FROM_CLASS (gobject_class),
 612                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 613                   G_STRUCT_OFFSET (GtkIconViewClass, move_cursor),
 614                   NULL, NULL,
 615                   _gtk_marshal_BOOLEAN__ENUM_INT,
 616                   G_TYPE_BOOLEAN, 2,
 617                   GTK_TYPE_MOVEMENT_STEP,
 618                   G_TYPE_INT);
 619
 620   /* Key bindings */
 621   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
 622   gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
 623   gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_item", 0);
 624   gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_item", 0);
 625
 626   gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "activate_cursor_item", 0);
 627   gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "activate_cursor_item", 0);
 628   gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "activate_cursor_item", 0);
 629
 630   gtk_icon_view_add_move_binding (binding_set, GDK_Up, 0,
 631                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 632   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Up, 0,
 633                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 634
 635   gtk_icon_view_add_move_binding (binding_set, GDK_Down, 0,
 636                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 637   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Down, 0,
 638                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 639
 640   gtk_icon_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
 641                                   GTK_MOVEMENT_DISPLAY_LINES, -1);
 642
 643   gtk_icon_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
 644                                   GTK_MOVEMENT_DISPLAY_LINES, 1);
 645
 646   gtk_icon_view_add_move_binding (binding_set, GDK_Home, 0,
 647                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
 648   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Home, 0,
 649                                   GTK_MOVEMENT_BUFFER_ENDS, -1);
 650
 651   gtk_icon_view_add_move_binding (binding_set, GDK_End, 0,
 652                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
 653   gtk_icon_view_add_move_binding (binding_set, GDK_KP_End, 0,
 654                                   GTK_MOVEMENT_BUFFER_ENDS, 1);
 655
 656   gtk_icon_view_add_move_binding (binding_set, GDK_Page_Up, 0,
 657                                   GTK_MOVEMENT_PAGES, -1);
 658   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0,
 659                                   GTK_MOVEMENT_PAGES, -1);
 660
 661   gtk_icon_view_add_move_binding (binding_set, GDK_Page_Down, 0,
 662                                   GTK_MOVEMENT_PAGES, 1);
 663   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0,
 664                                   GTK_MOVEMENT_PAGES, 1);
 665
 666   gtk_icon_view_add_move_binding (binding_set, GDK_Right, 0,
 667                                   GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 668   gtk_icon_view_add_move_binding (binding_set, GDK_Left, 0,
 669                                   GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 670
 671   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Right, 0,
 672                                   GTK_MOVEMENT_VISUAL_POSITIONS, 1);
 673   gtk_icon_view_add_move_binding (binding_set, GDK_KP_Left, 0,
 674                                   GTK_MOVEMENT_VISUAL_POSITIONS, -1);
 675 }
 676
 677 static void
 678 gtk_icon_view_init (GtkIconView *icon_view)
 679 {
 680   icon_view->priv = GTK_ICON_VIEW_GET_PRIVATE (icon_view);
 681
 682   icon_view->priv->width = 0;
 683   icon_view->priv->height = 0;
 684   icon_view->priv->selection_mode = GTK_SELECTION_SINGLE;
 685 #ifdef DND_WORKS
 686   icon_view->priv->pressed_button = -1;
 687   icon_view->priv->press_start_x = -1;
 688   icon_view->priv->press_start_y = -1;
 689 #endif
 690   icon_view->priv->text_column = -1;
 691   icon_view->priv->markup_column = -1;
 692   icon_view->priv->pixbuf_column = -1;
 693
 694   icon_view->priv->layout = gtk_widget_create_pango_layout (GTK_WIDGET (icon_view), NULL);
 695
 696   pango_layout_set_wrap (icon_view->priv->layout, PANGO_WRAP_WORD_CHAR);
 697
 698   GTK_WIDGET_SET_FLAGS (icon_view, GTK_CAN_FOCUS);
 699
 700   gtk_icon_view_set_adjustments (icon_view, NULL, NULL);
 701
 702   icon_view->priv->orientation = GTK_ORIENTATION_VERTICAL;
 703
 704   icon_view->priv->columns = -1;
 705   icon_view->priv->item_width = -1;
 706   icon_view->priv->spacing = 0;
 707   icon_view->priv->row_spacing = 6;
 708   icon_view->priv->column_spacing = 6;
 709   icon_view->priv->margin = 6;
 710 }
 711
 712 static void
 713 gtk_icon_view_destroy (GtkObject *object)
 714 {
 715   GtkIconView *icon_view;
 716
 717   icon_view = GTK_ICON_VIEW (object);
 718
 719   gtk_icon_view_set_model (icon_view, NULL);
 720
 721   if (icon_view->priv->layout_idle_id != 0)
 722     g_source_remove (icon_view->priv->layout_idle_id);
 723
 724   if (icon_view->priv->scroll_timeout_id != 0)
 725     g_source_remove (icon_view->priv->scroll_timeout_id);
 726
 727   (GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 728 }
 729
 730 /* GObject methods */
 731 static void
 732 gtk_icon_view_finalize (GObject *object)
 733 {
 734   GtkIconView *icon_view;
 735
 736   icon_view = GTK_ICON_VIEW (object);
 737
 738   g_object_unref (icon_view->priv->layout);
 739
 740   (G_OBJECT_CLASS (parent_class)->finalize) (object);
 741 }
 742
 743
 744 static void
 745 gtk_icon_view_set_property (GObject      *object,
 746                             guint         prop_id,
 747                             const GValue *value,
 748                             GParamSpec   *pspec)
 749 {
 750   GtkIconView *icon_view;
 751
 752   icon_view = GTK_ICON_VIEW (object);
 753
 754   switch (prop_id)
 755     {
 756     case PROP_SELECTION_MODE:
 757       gtk_icon_view_set_selection_mode (icon_view, g_value_get_enum (value));
 758       break;
 759     case PROP_PIXBUF_COLUMN:
 760       gtk_icon_view_set_pixbuf_column (icon_view, g_value_get_int (value));
 761       break;
 762     case PROP_TEXT_COLUMN:
 763       gtk_icon_view_set_text_column (icon_view, g_value_get_int (value));
 764       break;
 765     case PROP_MARKUP_COLUMN:
 766       gtk_icon_view_set_markup_column (icon_view, g_value_get_int (value));
 767       break;
 768     case PROP_MODEL:
 769       gtk_icon_view_set_model (icon_view, g_value_get_object (value));
 770       break;
 771     case PROP_ORIENTATION:
 772       gtk_icon_view_set_orientation (icon_view, g_value_get_enum (value));
 773       break;
 774     case PROP_COLUMNS:
 775       gtk_icon_view_set_columns (icon_view, g_value_get_int (value));
 776       break;
 777     case PROP_ITEM_WIDTH:
 778       gtk_icon_view_set_item_width (icon_view, g_value_get_int (value));
 779       break;
 780     case PROP_SPACING:
 781       gtk_icon_view_set_spacing (icon_view, g_value_get_int (value));
 782       break;
 783     case PROP_ROW_SPACING:
 784       gtk_icon_view_set_row_spacing (icon_view, g_value_get_int (value));
 785       break;
 786     case PROP_COLUMN_SPACING:
 787       gtk_icon_view_set_column_spacing (icon_view, g_value_get_int (value));
 788       break;
 789     case PROP_MARGIN:
 790       gtk_icon_view_set_margin (icon_view, g_value_get_int (value));
 791       break;
 792
 793     default:
 794       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 795       break;
 796     }
 797 }
 798
 799 static void
 800 gtk_icon_view_get_property (GObject      *object,
 801                             guint         prop_id,
 802                             GValue       *value,
 803                             GParamSpec   *pspec)
 804 {
 805   GtkIconView *icon_view;
 806
 807   icon_view = GTK_ICON_VIEW (object);
 808
 809   switch (prop_id)
 810     {
 811     case PROP_SELECTION_MODE:
 812       g_value_set_enum (value, icon_view->priv->selection_mode);
 813       break;
 814     case PROP_PIXBUF_COLUMN:
 815       g_value_set_int (value, icon_view->priv->pixbuf_column);
 816       break;
 817     case PROP_TEXT_COLUMN:
 818       g_value_set_int (value, icon_view->priv->text_column);
 819       break;
 820     case PROP_MARKUP_COLUMN:
 821       g_value_set_int (value, icon_view->priv->markup_column);
 822       break;
 823     case PROP_MODEL:
 824       g_value_set_object (value, icon_view->priv->model);
 825       break;
 826     case PROP_ORIENTATION:
 827       g_value_set_enum (value, icon_view->priv->orientation);
 828       break;
 829     case PROP_COLUMNS:
 830       g_value_set_int (value, icon_view->priv->columns);
 831       break;
 832     case PROP_ITEM_WIDTH:
 833       g_value_set_int (value, icon_view->priv->item_width);
 834       break;
 835     case PROP_SPACING:
 836       g_value_set_int (value, icon_view->priv->spacing);
 837       break;
 838     case PROP_ROW_SPACING:
 839       g_value_set_int (value, icon_view->priv->row_spacing);
 840       break;
 841     case PROP_COLUMN_SPACING:
 842       g_value_set_int (value, icon_view->priv->column_spacing);
 843       break;
 844     case PROP_MARGIN:
 845       g_value_set_int (value, icon_view->priv->margin);
 846       break;
 847
 848     default:
 849       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 850       break;
 851     }
 852 }
 853
 854 /* GtkWidget signals */
 855 static void
 856 gtk_icon_view_realize (GtkWidget *widget)
 857 {
 858   GtkIconView *icon_view;
 859   GdkWindowAttr attributes;
 860   gint attributes_mask;
 861
 862   icon_view = GTK_ICON_VIEW (widget);
 863
 864   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 865
 866   /* Make the main, clipping window */
 867   attributes.window_type = GDK_WINDOW_CHILD;
 868   attributes.x = widget->allocation.x;
 869   attributes.y = widget->allocation.y;
 870   attributes.width = widget->allocation.width;
 871   attributes.height = widget->allocation.height;
 872   attributes.wclass = GDK_INPUT_OUTPUT;
 873   attributes.visual = gtk_widget_get_visual (widget);
 874   attributes.colormap = gtk_widget_get_colormap (widget);
 875   attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
 876
 877   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 878
 879   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 880                                    &attributes, attributes_mask);
 881   gdk_window_set_user_data (widget->window, widget);
 882
 883   /* Make the window for the icon view */
 884   attributes.x = 0;
 885   attributes.y = 0;
 886   attributes.width = MAX (icon_view->priv->width, widget->allocation.width);
 887   attributes.height = MAX (icon_view->priv->height, widget->allocation.height);
 888   attributes.event_mask = (GDK_EXPOSURE_MASK |
 889                            GDK_SCROLL_MASK |
 890                            GDK_POINTER_MOTION_MASK |
 891                            GDK_BUTTON_PRESS_MASK |
 892                            GDK_BUTTON_RELEASE_MASK |
 893                            GDK_KEY_PRESS_MASK |
 894                            GDK_KEY_RELEASE_MASK) |
 895     gtk_widget_get_events (widget);
 896
 897   icon_view->priv->bin_window = gdk_window_new (widget->window,
 898                                                 &attributes, attributes_mask);
 899   gdk_window_set_user_data (icon_view->priv->bin_window, widget);
 900
 901   widget->style = gtk_style_attach (widget->style, widget->window);
 902   gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]);
 903   gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
 904 }
 905
 906 static void
 907 gtk_icon_view_unrealize (GtkWidget *widget)
 908 {
 909   GtkIconView *icon_view;
 910
 911   icon_view = GTK_ICON_VIEW (widget);
 912
 913   gdk_window_set_user_data (icon_view->priv->bin_window, NULL);
 914   gdk_window_destroy (icon_view->priv->bin_window);
 915   icon_view->priv->bin_window = NULL;
 916
 917   /* GtkWidget::unrealize destroys children and widget->window */
 918   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 919     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 920 }
 921
 922 static void
 923 gtk_icon_view_map (GtkWidget *widget)
 924 {
 925   GtkIconView *icon_view;
 926
 927   icon_view = GTK_ICON_VIEW (widget);
 928
 929   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 930
 931   gdk_window_show (icon_view->priv->bin_window);
 932   gdk_window_show (widget->window);
 933 }
 934
 935 static void
 936 gtk_icon_view_size_request (GtkWidget      *widget,
 937                             GtkRequisition *requisition)
 938 {
 939   GtkIconView *icon_view;
 940
 941   icon_view = GTK_ICON_VIEW (widget);
 942
 943   requisition->width = icon_view->priv->width;
 944   requisition->height = icon_view->priv->height;
 945 }
 946
 947 static void
 948 gtk_icon_view_size_allocate (GtkWidget      *widget,
 949                              GtkAllocation  *allocation)
 950 {
 951   GtkIconView *icon_view;
 952
 953   widget->allocation = *allocation;
 954
 955   icon_view = GTK_ICON_VIEW (widget);
 956
 957   if (GTK_WIDGET_REALIZED (widget))
 958     {
 959       gdk_window_move_resize (widget->window,
 960                               allocation->x, allocation->y,
 961                               allocation->width, allocation->height);
 962       gdk_window_resize (icon_view->priv->bin_window,
 963                          MAX (icon_view->priv->width, allocation->width),
 964                          MAX (icon_view->priv->height, allocation->height));
 965     }
 966
 967   icon_view->priv->hadjustment->page_size = allocation->width;
 968   icon_view->priv->hadjustment->page_increment = allocation->width * 0.9;
 969   icon_view->priv->hadjustment->step_increment = allocation->width * 0.1;
 970   icon_view->priv->hadjustment->lower = 0;
 971   icon_view->priv->hadjustment->upper = MAX (allocation->width, icon_view->priv->width);
 972   gtk_adjustment_changed (icon_view->priv->hadjustment);
 973
 974   icon_view->priv->vadjustment->page_size = allocation->height;
 975   icon_view->priv->vadjustment->page_increment = allocation->height * 0.9;
 976   icon_view->priv->vadjustment->step_increment = allocation->width * 0.1;
 977   icon_view->priv->vadjustment->lower = 0;
 978   icon_view->priv->vadjustment->upper = MAX (allocation->height, icon_view->priv->height);
 979   gtk_adjustment_changed (icon_view->priv->vadjustment);
 980
 981   gtk_icon_view_layout (icon_view);
 982 }
 983
 984 static gboolean
 985 gtk_icon_view_expose (GtkWidget *widget,
 986                       GdkEventExpose *expose)
 987 {
 988   GtkIconView *icon_view;
 989   GList *icons;
 990
 991   icon_view = GTK_ICON_VIEW (widget);
 992
 993   if (expose->window != icon_view->priv->bin_window)
 994     return FALSE;
 995
 996   for (icons = icon_view->priv->items; icons; icons = icons->next) {
 997     GtkIconViewItem *item = icons->data;
 998     GdkRectangle item_rectangle;
 999
1000     item_rectangle.x = item->x;
1001     item_rectangle.y = item->y;
1002     item_rectangle.width = item->width;
1003     item_rectangle.height = item->height;
1004
1005     if (gdk_region_rect_in (expose->region, &item_rectangle) == GDK_OVERLAP_RECTANGLE_OUT)
1006       continue;
1007
1008 #if 0
1009     gdk_draw_rectangle (icon_view->priv->bin_window,
1010                         GTK_WIDGET (icon_view)->style->black_gc,
1011                         FALSE,
1012                         item->x, item->y,
1013                         item->width, item->height);
1014     gdk_draw_rectangle (icon_view->priv->bin_window,
1015                         GTK_WIDGET (icon_view)->style->black_gc,
1016                         FALSE,
1017                         item->pixbuf_x, item->pixbuf_y,
1018                         item->pixbuf_width, item->pixbuf_height);
1019     gdk_draw_rectangle (icon_view->priv->bin_window,
1020                         GTK_WIDGET (icon_view)->style->black_gc,
1021                         FALSE,
1022                         item->layout_x, item->layout_y,
1023                         item->layout_width, item->layout_height);
1024 #endif
1025     gtk_icon_view_paint_item (icon_view, item, &expose->area);
1026
1027   }
1028
1029   if (icon_view->priv->doing_rubberband)
1030     {
1031       GdkRectangle *rectangles;
1032       gint n_rectangles;
1033
1034       gdk_region_get_rectangles (expose->region,
1035                                  &rectangles,
1036                                  &n_rectangles);
1037
1038       while (n_rectangles--)
1039         gtk_icon_view_paint_rubberband (icon_view, &rectangles[n_rectangles]);
1040
1041       g_free (rectangles);
1042     }
1043
1044   return TRUE;
1045 }
1046
1047 static gboolean
1048 scroll_timeout (gpointer data)
1049 {
1050   GtkIconView *icon_view;
1051   gdouble value;
1052
1053   GDK_THREADS_ENTER ();
1054
1055   icon_view = data;
1056
1057   value = MIN (icon_view->priv->vadjustment->value +
1058                icon_view->priv->scroll_value_diff,
1059                icon_view->priv->vadjustment->upper -
1060                icon_view->priv->vadjustment->page_size);
1061
1062   gtk_adjustment_set_value (icon_view->priv->vadjustment,
1063                             value);
1064
1065   gtk_icon_view_update_rubberband (icon_view);
1066
1067   GDK_THREADS_LEAVE ();
1068
1069   return TRUE;
1070 }
1071
1072 static gboolean
1073 gtk_icon_view_motion (GtkWidget      *widget,
1074                       GdkEventMotion *event)
1075 {
1076   GtkIconView *icon_view;
1077   gint abs_y;
1078
1079   icon_view = GTK_ICON_VIEW (widget);
1080 #ifdef DND_WORKS
1081   gtk_icon_view_maybe_begin_dragging_items (icon_view, event);
1082 #endif
1083   if (icon_view->priv->doing_rubberband)
1084     {
1085       gtk_icon_view_update_rubberband (widget);
1086
1087       abs_y = event->y - icon_view->priv->height *
1088         (icon_view->priv->vadjustment->value /
1089          (icon_view->priv->vadjustment->upper -
1090           icon_view->priv->vadjustment->lower));
1091
1092       if (abs_y < 0 || abs_y > widget->allocation.height)
1093         {
1094           if (icon_view->priv->scroll_timeout_id == 0)
1095             icon_view->priv->scroll_timeout_id = g_timeout_add (30, scroll_timeout, icon_view);
1096
1097           if (abs_y < 0)
1098             icon_view->priv->scroll_value_diff = abs_y;
1099           else
1100             icon_view->priv->scroll_value_diff = abs_y - widget->allocation.height;
1101
1102           icon_view->priv->event_last_x = event->x;
1103           icon_view->priv->event_last_y = event->y;
1104         }
1105       else if (icon_view->priv->scroll_timeout_id != 0)
1106         {
1107           g_source_remove (icon_view->priv->scroll_timeout_id);
1108
1109           icon_view->priv->scroll_timeout_id = 0;
1110         }
1111     }
1112
1113   return TRUE;
1114 }
1115
1116 static gboolean
1117 gtk_icon_view_button_press (GtkWidget      *widget,
1118                             GdkEventButton *event)
1119 {
1120   GtkIconView *icon_view;
1121   GtkIconViewItem *item;
1122   gboolean dirty = FALSE;
1123
1124   icon_view = GTK_ICON_VIEW (widget);
1125
1126   if (event->window != icon_view->priv->bin_window)
1127     return FALSE;
1128
1129   if (!GTK_WIDGET_HAS_FOCUS (widget))
1130     gtk_widget_grab_focus (widget);
1131
1132   if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
1133     {
1134
1135       item = gtk_icon_view_get_item_at_pos (icon_view,
1136                                             event->x, event->y);
1137
1138       if (item != NULL)
1139         {
1140           gtk_icon_view_scroll_to_item (icon_view, item);
1141
1142           if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
1143             {
1144               gtk_icon_view_set_cursor_item (icon_view, item);
1145             }
1146           else if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
1147                    (event->state & GDK_SHIFT_MASK))
1148             {
1149               gtk_icon_view_unselect_all_internal (icon_view);
1150
1151               gtk_icon_view_set_cursor_item (icon_view, item);
1152               if (!icon_view->priv->anchor_item)
1153                 icon_view->priv->anchor_item = item;
1154               else
1155                 gtk_icon_view_select_all_between (icon_view,
1156                                                   icon_view->priv->anchor_item,
1157                                                   item);
1158               dirty = TRUE;
1159             }
1160           else
1161             {
1162               if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE ||
1163                   ((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) &&
1164                   (event->state & GDK_CONTROL_MASK))
1165                 {
1166                   item->selected = !item->selected;
1167                   gtk_icon_view_queue_draw_item (icon_view, item);
1168                   dirty = TRUE;
1169                 }
1170               else
1171                 {
1172                   if (!item->selected)
1173                     {
1174                       gtk_icon_view_unselect_all_internal (icon_view);
1175
1176                       item->selected = TRUE;
1177                       gtk_icon_view_queue_draw_item (icon_view, item);
1178                       dirty = TRUE;
1179                     }
1180                 }
1181               gtk_icon_view_set_cursor_item (icon_view, item);
1182               icon_view->priv->anchor_item = item;
1183             }
1184 #ifdef DND_WORKS
1185           /* Save press to possibly begin a drag */
1186           if (icon_view->priv->pressed_button < 0)
1187             {
1188               icon_view->priv->pressed_button = event->button;
1189               icon_view->priv->press_start_x = event->x;
1190               icon_view->priv->press_start_y = event->y;
1191             }
1192 #endif
1193           if (!icon_view->priv->last_single_clicked)
1194             icon_view->priv->last_single_clicked = item;
1195         }
1196       else
1197         {
1198           if (icon_view->priv->selection_mode != GTK_SELECTION_BROWSE &&
1199               !(event->state & GDK_CONTROL_MASK))
1200             {
1201               dirty = gtk_icon_view_unselect_all_internal (icon_view);
1202             }
1203
1204           if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
1205             gtk_icon_view_start_rubberbanding (icon_view, event->x, event->y);
1206         }
1207
1208     }
1209
1210   if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
1211     {
1212       item = gtk_icon_view_get_item_at_pos (icon_view,
1213                                             event->x, event->y);
1214
1215       if (item && item == icon_view->priv->last_single_clicked)
1216         {
1217           GtkTreePath *path;
1218
1219           path = gtk_tree_path_new_from_indices (item->index, -1);
1220           gtk_icon_view_item_activated (icon_view, path);
1221           gtk_tree_path_free (path);
1222         }
1223
1224       icon_view->priv->last_single_clicked = NULL;
1225     }
1226
1227   if (dirty)
1228     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
1229
1230   return event->button == 1;
1231 }
1232
1233 static gboolean
1234 gtk_icon_view_button_release (GtkWidget      *widget,
1235                               GdkEventButton *event)
1236 {
1237   GtkIconView *icon_view;
1238
1239   icon_view = GTK_ICON_VIEW (widget);
1240
1241 #ifdef DND_WORKS
1242   if (icon_view->priv->pressed_button == event->button)
1243     icon_view->priv->pressed_button = -1;
1244 #endif
1245   gtk_icon_view_stop_rubberbanding (icon_view);
1246
1247   if (icon_view->priv->scroll_timeout_id != 0)
1248     {
1249       g_source_remove (icon_view->priv->scroll_timeout_id);
1250       icon_view->priv->scroll_timeout_id = 0;
1251     }
1252
1253   return TRUE;
1254 }
1255
1256 static void
1257 gtk_icon_view_update_rubberband (gpointer data)
1258 {
1259   GtkIconView *icon_view;
1260   gint x, y;
1261   GdkRectangle old_area;
1262   GdkRectangle new_area;
1263   GdkRectangle common;
1264   GdkRegion *invalid_region;
1265
1266   icon_view = GTK_ICON_VIEW (data);
1267
1268   gdk_window_get_pointer (icon_view->priv->bin_window, &x, &y, NULL);
1269
1270   x = MAX (x, 0);
1271   y = MAX (y, 0);
1272
1273   old_area.x = MIN (icon_view->priv->rubberband_x1,
1274                     icon_view->priv->rubberband_x2);
1275   old_area.y = MIN (icon_view->priv->rubberband_y1,
1276                     icon_view->priv->rubberband_y2);
1277   old_area.width = ABS (icon_view->priv->rubberband_x2 -
1278                         icon_view->priv->rubberband_x1) + 1;
1279   old_area.height = ABS (icon_view->priv->rubberband_y2 -
1280                          icon_view->priv->rubberband_y1) + 1;
1281
1282   new_area.x = MIN (icon_view->priv->rubberband_x1, x);
1283   new_area.y = MIN (icon_view->priv->rubberband_y1, y);
1284   new_area.width = ABS (x - icon_view->priv->rubberband_x1) + 1;
1285   new_area.height = ABS (y - icon_view->priv->rubberband_y1) + 1;
1286
1287   invalid_region = gdk_region_rectangle (&old_area);
1288   gdk_region_union_with_rect (invalid_region, &new_area);
1289
1290   gdk_rectangle_intersect (&old_area, &new_area, &common);
1291   if (common.width > 2 && common.height > 2)
1292     {
1293       GdkRegion *common_region;
1294
1295       /* make sure the border is invalidated */
1296       common.x += 1;
1297       common.y += 1;
1298       common.width -= 2;
1299       common.height -= 2;
1300
1301       common_region = gdk_region_rectangle (&common);
1302
1303       gdk_region_subtract (invalid_region, common_region);
1304       gdk_region_destroy (common_region);
1305     }
1306
1307   gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE);
1308
1309   gdk_region_destroy (invalid_region);
1310
1311   icon_view->priv->rubberband_x2 = x;
1312   icon_view->priv->rubberband_y2 = y;
1313
1314   gtk_icon_view_update_rubberband_selection (icon_view);
1315 }
1316
1317 static void
1318 gtk_icon_view_start_rubberbanding (GtkIconView  *icon_view,
1319                                    gint          x,
1320                                    gint          y)
1321 {
1322   GList *items;
1323
1324   g_assert (!icon_view->priv->doing_rubberband);
1325
1326   for (items = icon_view->priv->items; items; items = items->next)
1327     {
1328       GtkIconViewItem *item = items->data;
1329
1330       item->selected_before_rubberbanding = item->selected;
1331     }
1332
1333   icon_view->priv->rubberband_x1 = x;
1334   icon_view->priv->rubberband_y1 = y;
1335   icon_view->priv->rubberband_x2 = x;
1336   icon_view->priv->rubberband_y2 = y;
1337
1338   icon_view->priv->doing_rubberband = TRUE;
1339
1340   gtk_grab_add (GTK_WIDGET (icon_view));
1341 }
1342
1343 static void
1344 gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view)
1345 {
1346   if (!icon_view->priv->doing_rubberband)
1347     return;
1348
1349   icon_view->priv->doing_rubberband = FALSE;
1350
1351   gtk_grab_remove (GTK_WIDGET (icon_view));
1352
1353   gtk_widget_queue_draw (GTK_WIDGET (icon_view));
1354 }
1355
1356 static void
1357 gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view)
1358 {
1359   GList *items;
1360   gint x, y, width, height;
1361   gboolean dirty = FALSE;
1362
1363   x = MIN (icon_view->priv->rubberband_x1,
1364            icon_view->priv->rubberband_x2);
1365   y = MIN (icon_view->priv->rubberband_y1,
1366            icon_view->priv->rubberband_y2);
1367   width = ABS (icon_view->priv->rubberband_x1 -
1368                icon_view->priv->rubberband_x2);
1369   height = ABS (icon_view->priv->rubberband_y1 -
1370                 icon_view->priv->rubberband_y2);
1371
1372   for (items = icon_view->priv->items; items; items = items->next)
1373     {
1374       GtkIconViewItem *item = items->data;
1375       gboolean is_in;
1376       gboolean selected;
1377
1378       is_in = gtk_icon_view_item_hit_test (item, x, y, width, height);
1379
1380       selected = is_in ^ item->selected_before_rubberbanding;
1381
1382       if (item->selected != selected)
1383         {
1384           item->selected = selected;
1385           dirty = TRUE;
1386           gtk_icon_view_queue_draw_item (icon_view, item);
1387         }
1388     }
1389
1390   if (dirty)
1391     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
1392 }
1393
1394 static gboolean
1395 gtk_icon_view_item_hit_test (GtkIconViewItem  *item,
1396                              gint              x,
1397                              gint              y,
1398                              gint              width,
1399                              gint              height)
1400 {
1401   /* First try the pixbuf */
1402   if (MIN (x + width, item->pixbuf_x + item->pixbuf_width) - MAX (x, item->pixbuf_x) > 0 &&
1403       MIN (y + height, item->pixbuf_y + item->pixbuf_height) - MAX (y, item->pixbuf_y) > 0)
1404     return TRUE;
1405
1406   /* Then try the text */
1407   if (MIN (x + width, item->layout_x + item->layout_width) - MAX (x, item->layout_x) > 0 &&
1408       MIN (y + height, item->layout_y + item->layout_height) - MAX (y, item->layout_y) > 0)
1409     return TRUE;
1410
1411   return FALSE;
1412 }
1413
1414 #ifdef DND_WORKS
1415 static gboolean
1416 gtk_icon_view_maybe_begin_dragging_items (GtkIconView     *icon_view,
1417                                           GdkEventMotion  *event)
1418 {
1419   gboolean retval = FALSE;
1420   gint button;
1421   if (icon_view->priv->pressed_button < 0)
1422     return retval;
1423
1424   if (!gtk_drag_check_threshold (GTK_WIDGET (icon_view),
1425                                  icon_view->priv->press_start_x,
1426                                  icon_view->priv->press_start_y,
1427                                  event->x, event->y))
1428     return retval;
1429
1430   button = icon_view->priv->pressed_button;
1431   icon_view->priv->pressed_button = -1;
1432
1433   {
1434     static GtkTargetEntry row_targets[] = {
1435       { "GTK_ICON_VIEW_ITEMS", GTK_TARGET_SAME_APP, 0 }
1436     };
1437     GtkTargetList *target_list;
1438     GdkDragContext *context;
1439     GtkIconViewItem *item;
1440
1441     retval = TRUE;
1442
1443     target_list = gtk_target_list_new (row_targets, G_N_ELEMENTS (row_targets));
1444
1445     context = gtk_drag_begin (GTK_WIDGET (icon_view),
1446                               target_list, GDK_ACTION_MOVE,
1447                               button,
1448                               (GdkEvent *)event);
1449
1450     item = gtk_icon_view_get_item_at_pos (icon_view,
1451                                           icon_view->priv->press_start_x,
1452                                           icon_view->priv->press_start_y);
1453     g_assert (item != NULL);
1454     gtk_drag_set_icon_pixbuf (context, gtk_icon_view_get_item_icon (icon_view, item),
1455                               event->x - item->x,
1456                               event->y - item->y);
1457   }
1458
1459   return retval;
1460 }
1461 #endif
1462
1463 static gboolean
1464 gtk_icon_view_unselect_all_internal (GtkIconView  *icon_view)
1465 {
1466   gboolean dirty = FALSE;
1467   GList *items;
1468
1469   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
1470     return FALSE;
1471
1472   for (items = icon_view->priv->items; items; items = items->next)
1473     {
1474       GtkIconViewItem *item = items->data;
1475
1476       if (item->selected)
1477         {
1478           item->selected = FALSE;
1479           dirty = TRUE;
1480           gtk_icon_view_queue_draw_item (icon_view, item);
1481         }
1482     }
1483
1484   return dirty;
1485 }
1486
1487
1488 /* GtkIconView signals */
1489 static void
1490 gtk_icon_view_set_adjustments (GtkIconView   *icon_view,
1491                                GtkAdjustment *hadj,
1492                                GtkAdjustment *vadj)
1493 {
1494   gboolean need_adjust = FALSE;
1495
1496   if (hadj)
1497     g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
1498   else
1499     hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
1500   if (vadj)
1501     g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
1502   else
1503     vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
1504
1505   if (icon_view->priv->hadjustment && (icon_view->priv->hadjustment != hadj))
1506     {
1507       g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA,
1508                                            0, 0, NULL, NULL, icon_view);
1509       g_object_unref (icon_view->priv->hadjustment);
1510     }
1511
1512   if (icon_view->priv->vadjustment && (icon_view->priv->vadjustment != vadj))
1513     {
1514       g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA,
1515                                             0, 0, NULL, NULL, icon_view);
1516       g_object_unref (icon_view->priv->vadjustment);
1517     }
1518
1519   if (icon_view->priv->hadjustment != hadj)
1520     {
1521       icon_view->priv->hadjustment = hadj;
1522       g_object_ref (icon_view->priv->hadjustment);
1523       gtk_object_sink (GTK_OBJECT (icon_view->priv->hadjustment));
1524
1525       g_signal_connect (icon_view->priv->hadjustment, "value_changed",
1526                         G_CALLBACK (gtk_icon_view_adjustment_changed),
1527                         icon_view);
1528       need_adjust = TRUE;
1529     }
1530
1531   if (icon_view->priv->vadjustment != vadj)
1532     {
1533       icon_view->priv->vadjustment = vadj;
1534       g_object_ref (icon_view->priv->vadjustment);
1535       gtk_object_sink (GTK_OBJECT (icon_view->priv->vadjustment));
1536
1537       g_signal_connect (icon_view->priv->vadjustment, "value_changed",
1538                         G_CALLBACK (gtk_icon_view_adjustment_changed),
1539                         icon_view);
1540       need_adjust = TRUE;
1541     }
1542
1543   if (need_adjust)
1544     gtk_icon_view_adjustment_changed (NULL, icon_view);
1545 }
1546
1547 static void
1548 gtk_icon_view_real_select_all (GtkIconView *icon_view)
1549 {
1550   gtk_icon_view_select_all (icon_view);
1551 }
1552
1553 static void
1554 gtk_icon_view_real_unselect_all (GtkIconView *icon_view)
1555 {
1556   gtk_icon_view_unselect_all (icon_view);
1557 }
1558
1559 static void
1560 gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view)
1561 {
1562   gtk_icon_view_unselect_all (icon_view);
1563
1564   if (icon_view->priv->cursor_item != NULL)
1565     gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
1566 }
1567
1568 static gboolean
1569 gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view)
1570 {
1571   GtkTreePath *path;
1572
1573   if (!icon_view->priv->cursor_item)
1574     return FALSE;
1575
1576   path = gtk_tree_path_new_from_indices (icon_view->priv->cursor_item->index, -1);
1577
1578   gtk_icon_view_item_activated (icon_view, path);
1579
1580   gtk_tree_path_free (path);
1581
1582   return TRUE;
1583 }
1584
1585 static void
1586 gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view)
1587 {
1588   if (!icon_view->priv->cursor_item)
1589     return;
1590
1591   switch (icon_view->priv->selection_mode)
1592     {
1593     case GTK_SELECTION_NONE:
1594       break;
1595     case GTK_SELECTION_BROWSE:
1596       gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
1597       break;
1598     case GTK_SELECTION_SINGLE:
1599       if (icon_view->priv->cursor_item->selected)
1600         gtk_icon_view_unselect_item (icon_view, icon_view->priv->cursor_item);
1601       else
1602         gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
1603       break;
1604     case GTK_SELECTION_MULTIPLE:
1605       icon_view->priv->cursor_item->selected = !icon_view->priv->cursor_item->selected;
1606       g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
1607
1608       gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
1609       break;
1610     }
1611 }
1612
1613 /* Internal functions */
1614 static void
1615 gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment,
1616                                   GtkIconView   *icon_view)
1617 {
1618   if (GTK_WIDGET_REALIZED (icon_view))
1619     {
1620       gdk_window_move (icon_view->priv->bin_window,
1621                        - icon_view->priv->hadjustment->value,
1622                        - icon_view->priv->vadjustment->value);
1623
1624       if (icon_view->priv->doing_rubberband)
1625         gtk_icon_view_update_rubberband (GTK_WIDGET (icon_view));
1626
1627       gdk_window_process_updates (icon_view->priv->bin_window, TRUE);
1628     }
1629 }
1630
1631 static GList *
1632 gtk_icon_view_layout_single_row (GtkIconView *icon_view,
1633                                  GList       *first_item,
1634                                  gint         item_width,
1635                                  gint         row,
1636                                  gint        *y,
1637                                  gint        *maximum_width)
1638 {
1639   gint focus_width, focus_pad;
1640   gint x, current_width, max_height, max_pixbuf_height;
1641   GList *items, *last_item;
1642   gint col;
1643   gint colspan;
1644   gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
1645
1646   x = 0;
1647   col = 0;
1648   max_height = 0;
1649   max_pixbuf_height = 0;
1650   items = first_item;
1651   current_width = 0;
1652
1653   gtk_widget_style_get (GTK_WIDGET (icon_view),
1654                         "focus-line-width", &focus_width,
1655                         "focus-padding", &focus_pad,
1656                         NULL);
1657
1658   x += icon_view->priv->margin;
1659   current_width += 2 * icon_view->priv->margin;
1660   items = first_item;
1661
1662   while (items)
1663     {
1664       GtkIconViewItem *item = items->data;
1665
1666       gtk_icon_view_calculate_item_size (icon_view, item, item_width);
1667
1668
1669       colspan = 1 + (item->width - 1) / (item_width + icon_view->priv->column_spacing);
1670       current_width += colspan * (item_width + icon_view->priv->column_spacing);
1671
1672       if (items != first_item)
1673         {
1674           if ((icon_view->priv->columns <= 0 && current_width > GTK_WIDGET (icon_view)->allocation.width) ||
1675               (icon_view->priv->columns > 0 && col >= icon_view->priv->columns))
1676             break;
1677         }
1678
1679       item->y = *y;
1680       item->x = rtl ? GTK_WIDGET (icon_view)->allocation.width - MAX (item_width, item->width) - x : x;
1681
1682       if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1683         {
1684           if (rtl)
1685             {
1686               item->layout_x = item->x + ICON_TEXT_PADDING + focus_width + focus_pad;
1687               item->pixbuf_x = item->x + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + icon_view->priv->spacing + item->layout_width;
1688             }
1689           else
1690             {
1691               item->pixbuf_x = item->x;
1692               item->layout_x = item->x + item->pixbuf_width + icon_view->priv->spacing + ICON_TEXT_PADDING + focus_width + focus_pad;
1693             }
1694         }
1695       else
1696         {
1697           if (item->width < colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing)
1698             item->x += (colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing - item->width) / 2;
1699
1700           item->pixbuf_x = item->x + (item->width - item->pixbuf_width) / 2;
1701           item->layout_x = item->x + (item->width - item->layout_width) / 2;
1702         }
1703
1704       x = current_width - icon_view->priv->margin;
1705
1706       max_height = MAX (max_height, item->height);
1707       max_pixbuf_height = MAX (max_pixbuf_height, item->pixbuf_height);
1708
1709       if (current_width > *maximum_width)
1710         *maximum_width = current_width;
1711
1712       item->row = row;
1713       item->col = col;
1714
1715       col += colspan;
1716       items = items->next;
1717     }
1718
1719   last_item = items;
1720
1721   *y += max_height + icon_view->priv->row_spacing;
1722
1723   /* Now go through the row again and align the icons */
1724   for (items = first_item; items != last_item; items = items->next)
1725     {
1726       GtkIconViewItem *item = items->data;
1727
1728       if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1729         {
1730           item->pixbuf_y = item->y;
1731           item->layout_y = item->y + ICON_TEXT_PADDING + focus_width + focus_pad;
1732         }
1733       else
1734         {
1735           item->pixbuf_y = item->y + (max_pixbuf_height - item->pixbuf_height);
1736           item->layout_y = item->pixbuf_y + item->pixbuf_height + icon_view->priv->spacing + ICON_TEXT_PADDING + focus_width + focus_pad;
1737       }
1738       /* Update the bounding box */
1739       item->y = item->pixbuf_y;
1740
1741       /* We may want to readjust the new y coordinate. */
1742       if (item->y + item->height > *y)
1743         *y = item->y + item->height;
1744
1745       if (rtl)
1746         item->col = col - 1 - item->col;
1747     }
1748
1749   return last_item;
1750 }
1751
1752 static void
1753 gtk_icon_view_set_adjustment_upper (GtkAdjustment *adj,
1754                                     gdouble        upper)
1755 {
1756   if (upper != adj->upper)
1757     {
1758       gdouble min = MAX (0.0, upper - adj->page_size);
1759       gboolean value_changed = FALSE;
1760
1761       adj->upper = upper;
1762
1763       if (adj->value > min)
1764         {
1765           adj->value = min;
1766           value_changed = TRUE;
1767         }
1768
1769       gtk_adjustment_changed (adj);
1770
1771       if (value_changed)
1772         gtk_adjustment_value_changed (adj);
1773     }
1774 }
1775
1776 static void
1777 gtk_icon_view_layout (GtkIconView *icon_view)
1778 {
1779   gint y = 0, maximum_width = 0;
1780   GList *icons;
1781   GtkWidget *widget;
1782   gint row;
1783   gint item_width;
1784
1785   if (!VALID_MODEL_AND_COLUMNS (icon_view))
1786     return;
1787
1788   widget = GTK_WIDGET (icon_view);
1789
1790   item_width = icon_view->priv->item_width;
1791
1792   if (item_width < 0)
1793     {
1794       for (icons = icon_view->priv->items; icons; icons = icons->next)
1795         {
1796           GtkIconViewItem *item = icons->data;
1797           gtk_icon_view_calculate_item_size (icon_view, item, -1);
1798           item_width = MAX (item_width, item->width);
1799           gtk_icon_view_item_invalidate_size (item);
1800         }
1801     }
1802
1803   icons = icon_view->priv->items;
1804   y += icon_view->priv->margin;
1805   row = 0;
1806
1807   do
1808     {
1809       icons = gtk_icon_view_layout_single_row (icon_view, icons,
1810                                                item_width, row,
1811                                                &y, &maximum_width);
1812       row++;
1813     }
1814   while (icons != NULL);
1815
1816   if (maximum_width != icon_view->priv->width)
1817     {
1818       icon_view->priv->width = maximum_width;
1819     }
1820   y += icon_view->priv->margin;
1821
1822   if (y != icon_view->priv->height)
1823     {
1824       icon_view->priv->height = y;
1825     }
1826
1827   gtk_icon_view_set_adjustment_upper (icon_view->priv->hadjustment, icon_view->priv->width);
1828   gtk_icon_view_set_adjustment_upper (icon_view->priv->vadjustment, icon_view->priv->height);
1829
1830   if (GTK_WIDGET_REALIZED (icon_view))
1831     {
1832       gdk_window_resize (icon_view->priv->bin_window,
1833                          MAX (icon_view->priv->width, widget->allocation.width),
1834                          MAX (icon_view->priv->height, widget->allocation.height));
1835     }
1836
1837   if (icon_view->priv->layout_idle_id != 0)
1838     {
1839       g_source_remove (icon_view->priv->layout_idle_id);
1840       icon_view->priv->layout_idle_id = 0;
1841     }
1842
1843   gtk_widget_queue_draw (GTK_WIDGET (icon_view));
1844 }
1845
1846 /* Updates the pango layout and calculates the size */
1847 static void
1848 gtk_icon_view_calculate_item_size (GtkIconView     *icon_view,
1849                                    GtkIconViewItem *item,
1850                                    gint             item_width)
1851 {
1852   gint focus_width, focus_pad;
1853   gint layout_width, layout_height;
1854   gint maximum_layout_width;
1855   gint colspan;
1856   GdkPixbuf *pixbuf;
1857
1858   if (item->width != -1 && item->height != -1)
1859     return;
1860
1861   gtk_widget_style_get (GTK_WIDGET (icon_view),
1862                         "focus-line-width", &focus_width,
1863                         "focus-padding", &focus_pad,
1864                         NULL);
1865
1866   if (icon_view->priv->pixbuf_column != -1)
1867     {
1868       pixbuf = gtk_icon_view_get_item_icon (icon_view, item);
1869       item->pixbuf_width = gdk_pixbuf_get_width (pixbuf);
1870       item->pixbuf_height = gdk_pixbuf_get_height (pixbuf);
1871       g_object_unref (pixbuf);
1872     }
1873   else
1874     {
1875       item->pixbuf_width = 0;
1876       item->pixbuf_height = 0;
1877     }
1878
1879   if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1880       item_width > 0)
1881     {
1882       colspan = item->pixbuf_width / item_width + 1;
1883       maximum_layout_width = MAX (colspan * item_width - item->pixbuf_width - icon_view->priv->spacing - 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), 50);
1884     }
1885   else
1886     maximum_layout_width = MAX (item_width, item->pixbuf_width);
1887
1888   if (icon_view->priv->markup_column != 1 ||
1889       icon_view->priv->text_column != -1)
1890     {
1891       gtk_icon_view_update_item_text (icon_view, item);
1892
1893       pango_layout_set_alignment (icon_view->priv->layout, PANGO_ALIGN_CENTER);
1894       pango_layout_set_width (icon_view->priv->layout, maximum_layout_width * PANGO_SCALE);
1895
1896       pango_layout_get_pixel_size (icon_view->priv->layout, &layout_width, &layout_height);
1897
1898       item->layout_width = layout_width;
1899       item->layout_height = layout_height;
1900     }
1901   else
1902     {
1903       item->layout_width = 0;
1904       item->layout_height = 0;
1905     }
1906
1907   if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1908     {
1909       item->width = layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + icon_view->priv->spacing + item->pixbuf_width;
1910       item->height = MAX (layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), item->pixbuf_height);
1911     }
1912   else
1913     {
1914       item->width = MAX (layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad), item->pixbuf_width);
1915       item->height = layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad) + icon_view->priv->spacing + item->pixbuf_height;
1916     }
1917 }
1918
1919 static void
1920 gtk_icon_view_invalidate_sizes (GtkIconView *icon_view)
1921 {
1922   g_list_foreach (icon_view->priv->items,
1923                   (GFunc)gtk_icon_view_item_invalidate_size, NULL);
1924 }
1925
1926 static void
1927 gtk_icon_view_item_invalidate_size (GtkIconViewItem *item)
1928 {
1929   item->width = -1;
1930   item->height = -1;
1931 }
1932
1933 static GdkPixbuf *
1934 create_colorized_pixbuf (GdkPixbuf *src, GdkColor *new_color)
1935 {
1936         gint i, j;
1937         gint width, height, has_alpha, src_row_stride, dst_row_stride;
1938         gint red_value, green_value, blue_value;
1939         guchar *target_pixels;
1940         guchar *original_pixels;
1941         guchar *pixsrc;
1942         guchar *pixdest;
1943         GdkPixbuf *dest;
1944
1945         red_value = new_color->red / 255.0;
1946         green_value = new_color->green / 255.0;
1947         blue_value = new_color->blue / 255.0;
1948
1949         dest = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (src),
1950                                gdk_pixbuf_get_has_alpha (src),
1951                                gdk_pixbuf_get_bits_per_sample (src),
1952                                gdk_pixbuf_get_width (src),
1953                                gdk_pixbuf_get_height (src));
1954
1955         has_alpha = gdk_pixbuf_get_has_alpha (src);
1956         width = gdk_pixbuf_get_width (src);
1957         height = gdk_pixbuf_get_height (src);
1958         src_row_stride = gdk_pixbuf_get_rowstride (src);
1959         dst_row_stride = gdk_pixbuf_get_rowstride (dest);
1960         target_pixels = gdk_pixbuf_get_pixels (dest);
1961         original_pixels = gdk_pixbuf_get_pixels (src);
1962
1963         for (i = 0; i < height; i++) {
1964                 pixdest = target_pixels + i*dst_row_stride;
1965                 pixsrc = original_pixels + i*src_row_stride;
1966                 for (j = 0; j < width; j++) {
1967                         *pixdest++ = (*pixsrc++ * red_value) >> 8;
1968                         *pixdest++ = (*pixsrc++ * green_value) >> 8;
1969                         *pixdest++ = (*pixsrc++ * blue_value) >> 8;
1970                         if (has_alpha) {
1971                                 *pixdest++ = *pixsrc++;
1972                         }
1973                 }
1974         }
1975         return dest;
1976 }
1977
1978 static void
1979 gtk_icon_view_paint_item (GtkIconView     *icon_view,
1980                           GtkIconViewItem *item,
1981                           GdkRectangle    *area)
1982 {
1983   gint focus_width, focus_pad;
1984   GdkPixbuf *pixbuf, *tmp;
1985   GtkStateType state;
1986   gboolean rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;
1987
1988   if (!VALID_MODEL_AND_COLUMNS (icon_view))
1989     return;
1990
1991   gtk_widget_style_get (GTK_WIDGET (icon_view),
1992                         "focus-line-width", &focus_width,
1993                         "focus-padding", &focus_pad,
1994                         NULL);
1995
1996   if (GTK_WIDGET_HAS_FOCUS (icon_view))
1997     state = GTK_STATE_SELECTED;
1998   else
1999     state = GTK_STATE_ACTIVE;
2000
2001   if (icon_view->priv->pixbuf_column != -1)
2002     {
2003       tmp = gtk_icon_view_get_item_icon (icon_view, item);
2004       if (item->selected)
2005         {
2006           pixbuf = create_colorized_pixbuf (tmp,
2007                                             &GTK_WIDGET (icon_view)->style->base[state]);
2008           g_object_unref (tmp);
2009         }
2010       else
2011         pixbuf = tmp;
2012
2013       gdk_draw_pixbuf (icon_view->priv->bin_window, NULL, pixbuf,
2014                        0, 0,
2015                        item->pixbuf_x, item->pixbuf_y,
2016                        item->pixbuf_width, item->pixbuf_height,
2017                        GDK_RGB_DITHER_NORMAL,
2018                        item->pixbuf_width, item->pixbuf_height);
2019       g_object_unref (pixbuf);
2020     }
2021
2022   if (icon_view->priv->text_column != -1)
2023     {
2024       if (item->selected)
2025         {
2026           gdk_draw_rectangle (icon_view->priv->bin_window,
2027                               GTK_WIDGET (icon_view)->style->base_gc[state],
2028                               TRUE,
2029                               item->layout_x - ICON_TEXT_PADDING,
2030                               item->layout_y - ICON_TEXT_PADDING,
2031                               item->layout_width + 2 * ICON_TEXT_PADDING,
2032                               item->layout_height + 2 * ICON_TEXT_PADDING);
2033         }
2034
2035       gtk_icon_view_update_item_text (icon_view, item);
2036       pango_layout_set_alignment (icon_view->priv->layout, rtl ? PANGO_ALIGN_RIGHT: PANGO_ALIGN_LEFT);
2037       pango_layout_set_width (icon_view->priv->layout, item->layout_width * PANGO_SCALE);
2038       gtk_paint_layout (GTK_WIDGET (icon_view)->style,
2039                         icon_view->priv->bin_window,
2040                         item->selected ? state : GTK_STATE_NORMAL,
2041                         TRUE, area, GTK_WIDGET (icon_view), "icon_view",
2042                         item->layout_x,
2043                         item->layout_y,
2044                         icon_view->priv->layout);
2045
2046       if (GTK_WIDGET_HAS_FOCUS (icon_view) &&
2047           item == icon_view->priv->cursor_item)
2048         gtk_paint_focus (GTK_WIDGET (icon_view)->style,
2049                          icon_view->priv->bin_window,
2050                          GTK_STATE_NORMAL,
2051                          area,
2052                          GTK_WIDGET (icon_view),
2053                          "icon_view",
2054                          item->layout_x - ICON_TEXT_PADDING - focus_width - focus_pad,
2055                          item->layout_y - ICON_TEXT_PADDING - focus_width - focus_pad,
2056                          item->layout_width + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad),
2057                          item->layout_height + 2 * (ICON_TEXT_PADDING + focus_width + focus_pad));
2058     }
2059 }
2060
2061 static guint32
2062 gtk_gdk_color_to_rgb (const GdkColor *color)
2063 {
2064   guint32 result;
2065   result = (0xff0000 | (color->red & 0xff00));
2066   result <<= 8;
2067   result |= ((color->green & 0xff00) | (color->blue >> 8));
2068   return result;
2069 }
2070
2071 static void
2072 gtk_icon_view_paint_rubberband (GtkIconView     *icon_view,
2073                                 GdkRectangle    *area)
2074 {
2075   GdkRectangle rect;
2076   GdkPixbuf *pixbuf;
2077   GdkGC *gc;
2078   GdkRectangle rubber_rect;
2079   GdkColor *fill_color_gdk;
2080   guint fill_color;
2081   guchar fill_color_alpha;
2082
2083   rubber_rect.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
2084   rubber_rect.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
2085   rubber_rect.width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2) + 1;
2086   rubber_rect.height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2) + 1;
2087
2088   if (!gdk_rectangle_intersect (&rubber_rect, area, &rect))
2089     return;
2090
2091   gtk_widget_style_get (GTK_WIDGET (icon_view),
2092                         "selection_box_color", &fill_color_gdk,
2093                         "selection_box_alpha", &fill_color_alpha,
2094                         NULL);
2095
2096   if (!fill_color_gdk) {
2097     fill_color_gdk = gdk_color_copy (&GTK_WIDGET (icon_view)->style->base[GTK_STATE_SELECTED]);
2098   }
2099
2100   fill_color = gtk_gdk_color_to_rgb (fill_color_gdk) << 8 | fill_color_alpha;
2101
2102   if (!gdk_draw_rectangle_alpha_libgtk_only (icon_view->priv->bin_window,
2103                                              rect.x, rect.y, rect.width, rect.height,
2104                                              fill_color_gdk,
2105                                              fill_color_alpha << 8 | fill_color_alpha))
2106     {
2107       pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, rect.width, rect.height);
2108       gdk_pixbuf_fill (pixbuf, fill_color);
2109
2110       gdk_draw_pixbuf (icon_view->priv->bin_window, NULL, pixbuf,
2111                        0, 0,
2112                        rect.x,rect.y,
2113                        rect.width, rect.height,
2114                        GDK_RGB_DITHER_NONE,
2115                        0, 0);
2116       g_object_unref (pixbuf);
2117     }
2118
2119   gc = gdk_gc_new (icon_view->priv->bin_window);
2120   gdk_gc_set_rgb_fg_color (gc, fill_color_gdk);
2121   gdk_gc_set_clip_rectangle (gc, &rect);
2122   gdk_draw_rectangle (icon_view->priv->bin_window,
2123                       gc, FALSE,
2124                       rubber_rect.x, rubber_rect.y,
2125                       rubber_rect.width - 1, rubber_rect.height - 1);
2126   gdk_color_free (fill_color_gdk);
2127   g_object_unref (gc);
2128 }
2129
2130 static void
2131 gtk_icon_view_queue_draw_item (GtkIconView     *icon_view,
2132                                GtkIconViewItem *item)
2133 {
2134   GdkRectangle rect;
2135
2136   rect.x = item->x;
2137   rect.y = item->y;
2138   rect.width = item->width;
2139   rect.height = item->height;
2140
2141   if (icon_view->priv->bin_window)
2142     gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE);
2143 }
2144
2145 static gboolean
2146 layout_callback (gpointer user_data)
2147 {
2148   GtkIconView *icon_view;
2149
2150   GDK_THREADS_ENTER ();
2151
2152   icon_view = GTK_ICON_VIEW (user_data);
2153
2154   icon_view->priv->layout_idle_id = 0;
2155
2156   gtk_icon_view_layout (icon_view);
2157
2158   GDK_THREADS_LEAVE();
2159
2160   return FALSE;
2161 }
2162
2163 static void
2164 gtk_icon_view_queue_layout (GtkIconView *icon_view)
2165 {
2166   if (icon_view->priv->layout_idle_id != 0)
2167     return;
2168
2169   icon_view->priv->layout_idle_id = g_idle_add (layout_callback, icon_view);
2170 }
2171
2172 static void
2173 gtk_icon_view_set_cursor_item (GtkIconView     *icon_view,
2174                                GtkIconViewItem *item)
2175 {
2176   AtkObject *obj;
2177   AtkObject *item_obj;
2178
2179   if (icon_view->priv->cursor_item == item)
2180     return;
2181
2182   if (icon_view->priv->cursor_item != NULL)
2183     gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
2184
2185   icon_view->priv->cursor_item = item;
2186   gtk_icon_view_queue_draw_item (icon_view, item);
2187
2188   /* Notify that accessible focus object has changed */
2189   obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
2190   item_obj = atk_object_ref_accessible_child (obj, item->index);
2191
2192   if (item_obj != NULL)
2193     {
2194       atk_focus_tracker_notify (item_obj);
2195       g_object_unref (item_obj);
2196     }
2197 }
2198
2199
2200 static GtkIconViewItem *
2201 gtk_icon_view_item_new (void)
2202 {
2203   GtkIconViewItem *item;
2204
2205   item = g_new0 (GtkIconViewItem, 1);
2206
2207   item->width = -1;
2208   item->height = -1;
2209
2210   return item;
2211 }
2212
2213 static void
2214 gtk_icon_view_item_free (GtkIconViewItem *item)
2215 {
2216   g_return_if_fail (item != NULL);
2217
2218   g_free (item);
2219 }
2220
2221 static void
2222 gtk_icon_view_update_item_text (GtkIconView     *icon_view,
2223                                 GtkIconViewItem *item)
2224 {
2225   gboolean iters_persist;
2226   GtkTreeIter iter;
2227   GtkTreePath *path;
2228   gchar *text;
2229
2230   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
2231
2232   if (!iters_persist)
2233     {
2234       path = gtk_tree_path_new_from_indices (item->index, -1);
2235       gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
2236       gtk_tree_path_free (path);
2237     }
2238   else
2239     iter = item->iter;
2240
2241   if (icon_view->priv->markup_column != -1)
2242     {
2243       gtk_tree_model_get (icon_view->priv->model, &iter,
2244                           icon_view->priv->markup_column, &text,
2245                           -1);
2246       pango_layout_set_markup (icon_view->priv->layout, text, -1);
2247     }
2248   else
2249     {
2250       gtk_tree_model_get (icon_view->priv->model, &iter,
2251                           icon_view->priv->text_column, &text,
2252                           -1);
2253       pango_layout_set_text (icon_view->priv->layout, text, -1);
2254     }
2255
2256   g_free (text);
2257 }
2258
2259 static GdkPixbuf *
2260 gtk_icon_view_get_item_icon (GtkIconView      *icon_view,
2261                              GtkIconViewItem  *item)
2262 {
2263   gboolean iters_persist;
2264   GtkTreeIter iter;
2265   GtkTreePath *path;
2266   GdkPixbuf *pixbuf;
2267
2268   g_return_val_if_fail (item != NULL, NULL);
2269
2270   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
2271
2272   if (!iters_persist)
2273     {
2274       path = gtk_tree_path_new_from_indices (item->index, -1);
2275       gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
2276       gtk_tree_path_free (path);
2277     }
2278   else
2279     iter = item->iter;
2280
2281   gtk_tree_model_get (icon_view->priv->model, &iter,
2282                       icon_view->priv->pixbuf_column, &pixbuf,
2283                       -1);
2284
2285   return pixbuf;
2286 }
2287
2288
2289 static GtkIconViewItem *
2290 gtk_icon_view_get_item_at_pos (GtkIconView *icon_view,
2291                                gint         x,
2292                                gint         y)
2293 {
2294   GList *items;
2295
2296   for (items = icon_view->priv->items; items; items = items->next)
2297     {
2298       GtkIconViewItem *item = items->data;
2299
2300       if (x > item->x && x < item->x + item->width &&
2301           y > item->y && y < item->y + item->height)
2302         {
2303           /* Check if the mouse is inside the icon or the label */
2304           if ((x > item->pixbuf_x && x < item->pixbuf_x + item->pixbuf_width &&
2305                y > item->pixbuf_y && y < item->pixbuf_y + item->pixbuf_height) ||
2306               (x > item->layout_x - ICON_TEXT_PADDING &&
2307                x < item->layout_x + item->layout_width + ICON_TEXT_PADDING &&
2308                y > item->layout_y - ICON_TEXT_PADDING &&
2309                y < item->layout_y + item->layout_height + ICON_TEXT_PADDING))
2310             return item;
2311         }
2312     }
2313
2314   return NULL;
2315 }
2316
2317 static void
2318 gtk_icon_view_select_item (GtkIconView      *icon_view,
2319                            GtkIconViewItem  *item)
2320 {
2321   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
2322   g_return_if_fail (item != NULL);
2323
2324   if (item->selected)
2325     return;
2326
2327   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
2328     return;
2329   else if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
2330     gtk_icon_view_unselect_all_internal (icon_view);
2331
2332   item->selected = TRUE;
2333
2334   gtk_icon_view_queue_draw_item (icon_view, item);
2335
2336   g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2337 }
2338
2339
2340 static void
2341 gtk_icon_view_unselect_item (GtkIconView      *icon_view,
2342                              GtkIconViewItem  *item)
2343 {
2344   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
2345   g_return_if_fail (item != NULL);
2346
2347   if (!item->selected)
2348     return;
2349
2350   if (icon_view->priv->selection_mode == GTK_SELECTION_NONE ||
2351       icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
2352     return;
2353
2354   item->selected = FALSE;
2355
2356   g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2357
2358   gtk_icon_view_queue_draw_item (icon_view, item);
2359 }
2360
2361 static void
2362 verify_items (GtkIconView *icon_view)
2363 {
2364   GList *items;
2365   int i = 0;
2366
2367   for (items = icon_view->priv->items; items; items = items->next)
2368     {
2369       GtkIconViewItem *item = items->data;
2370
2371       if (item->index != i)
2372         g_error ("List item does not match its index: item index %d and list index %d\n", item->index, i);
2373
2374       i++;
2375     }
2376 }
2377
2378 static void
2379 gtk_icon_view_row_changed (GtkTreeModel *model,
2380                            GtkTreePath  *path,
2381                            GtkTreeIter  *iter,
2382                            gpointer      data)
2383 {
2384   GtkIconViewItem *item;
2385   gint index;
2386   GtkIconView *icon_view;
2387
2388   icon_view = GTK_ICON_VIEW (data);
2389
2390   index = gtk_tree_path_get_indices(path)[0];
2391   item = g_list_nth (icon_view->priv->items, index)->data;
2392
2393   gtk_icon_view_item_invalidate_size (item);
2394   gtk_icon_view_queue_layout (icon_view);
2395
2396   verify_items (icon_view);
2397 }
2398
2399 static void
2400 gtk_icon_view_row_inserted (GtkTreeModel *model,
2401                             GtkTreePath  *path,
2402                             GtkTreeIter  *iter,
2403                             gpointer      data)
2404 {
2405   gint length, index;
2406   GtkIconViewItem *item;
2407   gboolean iters_persist;
2408   GtkIconView *icon_view;
2409   GList *list;
2410
2411   icon_view = GTK_ICON_VIEW (data);
2412   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
2413
2414   length = gtk_tree_model_iter_n_children (model, NULL);
2415   index = gtk_tree_path_get_indices(path)[0];
2416
2417   item = gtk_icon_view_item_new ();
2418
2419   if (iters_persist)
2420     item->iter = *iter;
2421
2422   item->index = index;
2423
2424   /* FIXME: We can be more efficient here,
2425      we can store a tail pointer and use that when
2426      appending (which is a rather common operation)
2427   */
2428   icon_view->priv->items = g_list_insert (icon_view->priv->items,
2429                                          item, index);
2430
2431   list = g_list_nth (icon_view->priv->items, index + 1);
2432   for (; list; list = list->next)
2433     {
2434       item = list->data;
2435
2436       item->index++;
2437     }
2438
2439   verify_items (icon_view);
2440 }
2441
2442 static void
2443 gtk_icon_view_row_deleted (GtkTreeModel *model,
2444                            GtkTreePath  *path,
2445                            gpointer      data)
2446 {
2447   gint index;
2448   GtkIconView *icon_view;
2449   GtkIconViewItem *item;
2450   GList *list, *next;
2451   gboolean emit = FALSE;
2452
2453   icon_view = GTK_ICON_VIEW (data);
2454
2455   index = gtk_tree_path_get_indices(path)[0];
2456
2457   list = g_list_nth (icon_view->priv->items, index);
2458   item = list->data;
2459
2460   if (item == icon_view->priv->anchor_item)
2461     icon_view->priv->anchor_item = NULL;
2462
2463   if (item == icon_view->priv->cursor_item)
2464     icon_view->priv->cursor_item = NULL;
2465
2466   if (item->selected)
2467     emit = TRUE;
2468
2469   gtk_icon_view_item_free (item);
2470
2471   for (next = list->next; next; next = next->next)
2472     {
2473       item = next->data;
2474
2475       item->index--;
2476     }
2477
2478   icon_view->priv->items = g_list_delete_link (icon_view->priv->items, list);
2479
2480   gtk_icon_view_queue_layout (icon_view);
2481
2482   verify_items (icon_view);
2483
2484   if (emit)
2485     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2486 }
2487
2488 static void
2489 gtk_icon_view_rows_reordered (GtkTreeModel *model,
2490                               GtkTreePath  *parent,
2491                               GtkTreeIter  *iter,
2492                               gint         *new_order,
2493                               gpointer      data)
2494 {
2495   int i;
2496   int length;
2497   GtkIconView *icon_view;
2498   GList *items = NULL, *list;
2499   GtkIconViewItem **item_array;
2500   gint *order;
2501
2502   icon_view = GTK_ICON_VIEW (data);
2503
2504   length = gtk_tree_model_iter_n_children (model, NULL);
2505
2506   order = g_new (gint, length);
2507   for (i = 0; i < length; i++)
2508     order [new_order[i]] = i;
2509
2510   item_array = g_new (GtkIconViewItem *, length);
2511   for (i = 0, list = icon_view->priv->items; list != NULL; list = list->next, i++)
2512     item_array[order[i]] = list->data;
2513   g_free (order);
2514
2515   for (i = length - 1; i >= 0; i--)
2516     {
2517       item_array[i]->index = i;
2518       items = g_list_prepend (items, item_array[i]);
2519     }
2520
2521   g_free (item_array);
2522   g_list_free (icon_view->priv->items);
2523   icon_view->priv->items = items;
2524
2525   verify_items (icon_view);
2526 }
2527
2528 static void
2529 gtk_icon_view_build_items (GtkIconView *icon_view)
2530 {
2531   GtkTreeIter iter;
2532   int i;
2533   gboolean iters_persist;
2534   GList *items = NULL;
2535
2536   iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST;
2537
2538   if (!gtk_tree_model_get_iter_first (icon_view->priv->model,
2539                                       &iter))
2540     return;
2541
2542   i = 0;
2543
2544   do
2545     {
2546       GtkIconViewItem *item = gtk_icon_view_item_new ();
2547
2548       if (iters_persist)
2549         item->iter = iter;
2550
2551       item->index = i;
2552
2553       i++;
2554
2555       items = g_list_prepend (items, item);
2556
2557     } while (gtk_tree_model_iter_next (icon_view->priv->model, &iter));
2558
2559   icon_view->priv->items = g_list_reverse (items);
2560 }
2561
2562 static void
2563 gtk_icon_view_add_move_binding (GtkBindingSet  *binding_set,
2564                                 guint           keyval,
2565                                 guint           modmask,
2566                                 GtkMovementStep step,
2567                                 gint            count)
2568 {
2569
2570   gtk_binding_entry_add_signal (binding_set, keyval, modmask,
2571                                 "move_cursor", 2,
2572                                 G_TYPE_ENUM, step,
2573                                 G_TYPE_INT, count);
2574
2575   gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
2576                                 "move_cursor", 2,
2577                                 G_TYPE_ENUM, step,
2578                                 G_TYPE_INT, count);
2579
2580   if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2581    return;
2582
2583   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
2584                                 "move_cursor", 2,
2585                                 G_TYPE_ENUM, step,
2586                                 G_TYPE_INT, count);
2587
2588   gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
2589                                 "move_cursor", 2,
2590                                 G_TYPE_ENUM, step,
2591                                 G_TYPE_INT, count);
2592 }
2593
2594 static gboolean
2595 gtk_icon_view_real_move_cursor (GtkIconView     *icon_view,
2596                                 GtkMovementStep  step,
2597                                 gint             count)
2598 {
2599   GdkModifierType state;
2600
2601   g_return_val_if_fail (GTK_ICON_VIEW (icon_view), FALSE);
2602   g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
2603                         step == GTK_MOVEMENT_VISUAL_POSITIONS ||
2604                         step == GTK_MOVEMENT_DISPLAY_LINES ||
2605                         step == GTK_MOVEMENT_PAGES ||
2606                         step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
2607
2608   if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (icon_view)))
2609     return FALSE;
2610
2611   gtk_widget_grab_focus (GTK_WIDGET (icon_view));
2612
2613   if (gtk_get_current_event_state (&state))
2614     {
2615       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
2616         icon_view->priv->ctrl_pressed = TRUE;
2617       if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
2618         icon_view->priv->shift_pressed = TRUE;
2619     }
2620   /* else we assume not pressed */
2621
2622   switch (step)
2623     {
2624     case GTK_MOVEMENT_LOGICAL_POSITIONS:
2625     case GTK_MOVEMENT_VISUAL_POSITIONS:
2626       gtk_icon_view_move_cursor_left_right (icon_view, count);
2627       break;
2628     case GTK_MOVEMENT_DISPLAY_LINES:
2629       gtk_icon_view_move_cursor_up_down (icon_view, count);
2630       break;
2631     case GTK_MOVEMENT_PAGES:
2632       gtk_icon_view_move_cursor_page_up_down (icon_view, count);
2633       break;
2634     case GTK_MOVEMENT_BUFFER_ENDS:
2635       gtk_icon_view_move_cursor_start_end (icon_view, count);
2636       break;
2637     default:
2638       g_assert_not_reached ();
2639     }
2640
2641   icon_view->priv->ctrl_pressed = FALSE;
2642   icon_view->priv->shift_pressed = FALSE;
2643
2644   return TRUE;
2645 }
2646
2647 static GtkIconViewItem *
2648 find_item (GtkIconView     *icon_view,
2649            GtkIconViewItem *current,
2650            gint             row_ofs,
2651            gint             col_ofs)
2652 {
2653   gint row, col;
2654   GList *items;
2655   GtkIconViewItem *item;
2656
2657   /* FIXME: this could be more efficient
2658    */
2659   row = current->row + row_ofs;
2660   col = current->col + col_ofs;
2661
2662   for (items = icon_view->priv->items; items; items = items->next)
2663     {
2664       item = items->data;
2665       if (item->row == row && item->col == col)
2666         return item;
2667     }
2668
2669   return NULL;
2670 }
2671
2672
2673 static GtkIconViewItem *
2674 find_item_page_up_down (GtkIconView     *icon_view,
2675                         GtkIconViewItem *current,
2676                         gint             count)
2677 {
2678   GList *item, *next;
2679   gint y, col;
2680
2681   col = current->col;
2682   y = current->y + count * icon_view->priv->vadjustment->page_size;
2683
2684   item = g_list_find (icon_view->priv->items, current);
2685   if (count > 0)
2686     {
2687       while (item)
2688         {
2689           for (next = item->next; next; next = next->next)
2690             {
2691               if (((GtkIconViewItem *)next->data)->col == col)
2692                 break;
2693             }
2694           if (!next || ((GtkIconViewItem *)next->data)->y > y)
2695             break;
2696
2697           item = next;
2698         }
2699     }
2700   else
2701     {
2702       while (item)
2703         {
2704           for (next = item->prev; next; next = next->prev)
2705             {
2706               if (((GtkIconViewItem *)next->data)->col == col)
2707                 break;
2708             }
2709           if (!next || ((GtkIconViewItem *)next->data)->y < y)
2710             break;
2711
2712           item = next;
2713         }
2714     }
2715
2716   if (item)
2717     return item->data;
2718
2719   return NULL;
2720 }
2721
2722 static gboolean
2723 gtk_icon_view_select_all_between (GtkIconView     *icon_view,
2724                                   GtkIconViewItem *anchor,
2725                                   GtkIconViewItem *cursor)
2726 {
2727   GList *items;
2728   GtkIconViewItem *item;
2729   gint row1, row2, col1, col2;
2730   gboolean dirty = FALSE;
2731
2732   if (anchor->row < cursor->row)
2733     {
2734       row1 = anchor->row;
2735       row2 = cursor->row;
2736     }
2737   else
2738     {
2739       row1 = cursor->row;
2740       row2 = anchor->row;
2741     }
2742
2743   if (anchor->col < cursor->col)
2744     {
2745       col1 = anchor->col;
2746       col2 = cursor->col;
2747     }
2748   else
2749     {
2750       col1 = cursor->col;
2751       col2 = anchor->col;
2752     }
2753
2754   for (items = icon_view->priv->items; items; items = items->next)
2755     {
2756       item = items->data;
2757
2758       if (row1 <= item->row && item->row <= row2 &&
2759           col1 <= item->col && item->col <= col2)
2760         {
2761           if (!item->selected)
2762             dirty = TRUE;
2763
2764           item->selected = TRUE;
2765
2766           gtk_icon_view_queue_draw_item (icon_view, item);
2767         }
2768     }
2769
2770   return dirty;
2771 }
2772
2773 static void
2774 gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view,
2775                                    gint         count)
2776 {
2777   GtkIconViewItem *item;
2778   gboolean dirty = FALSE;
2779
2780   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
2781     return;
2782
2783   if (!icon_view->priv->cursor_item)
2784     {
2785       GList *list;
2786
2787       if (count > 0)
2788         list = icon_view->priv->items;
2789       else
2790         list = g_list_last (icon_view->priv->items);
2791
2792       item = list ? list->data : NULL;
2793     }
2794   else
2795     item = find_item (icon_view,
2796                       icon_view->priv->cursor_item,
2797                       count, 0);
2798
2799   if (!item)
2800     return;
2801
2802   if (icon_view->priv->ctrl_pressed ||
2803       !icon_view->priv->shift_pressed ||
2804       !icon_view->priv->anchor_item ||
2805       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
2806     icon_view->priv->anchor_item = item;
2807
2808   gtk_icon_view_set_cursor_item (icon_view, item);
2809
2810   if (!icon_view->priv->ctrl_pressed &&
2811       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
2812     {
2813       gtk_icon_view_unselect_all_internal (icon_view);
2814       dirty = gtk_icon_view_select_all_between (icon_view,
2815                                                 icon_view->priv->anchor_item,
2816                                                 item);
2817     }
2818
2819   gtk_icon_view_scroll_to_item (icon_view, item);
2820
2821   if (dirty)
2822     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2823 }
2824
2825 static void
2826 gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view,
2827                                         gint         count)
2828 {
2829   GtkIconViewItem *item;
2830   gboolean dirty = FALSE;
2831
2832   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
2833     return;
2834
2835   if (!icon_view->priv->cursor_item)
2836     {
2837       GList *list;
2838
2839       if (count > 0)
2840         list = icon_view->priv->items;
2841       else
2842         list = g_list_last (icon_view->priv->items);
2843
2844       item = list ? list->data : NULL;
2845     }
2846   else
2847     item = find_item_page_up_down (icon_view,
2848                                    icon_view->priv->cursor_item,
2849                                    count);
2850
2851   if (!item)
2852     return;
2853
2854   if (icon_view->priv->ctrl_pressed ||
2855       !icon_view->priv->shift_pressed ||
2856       !icon_view->priv->anchor_item ||
2857       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
2858     icon_view->priv->anchor_item = item;
2859
2860   gtk_icon_view_set_cursor_item (icon_view, item);
2861
2862   if (!icon_view->priv->ctrl_pressed &&
2863       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
2864     {
2865       gtk_icon_view_unselect_all_internal (icon_view);
2866       dirty = gtk_icon_view_select_all_between (icon_view,
2867                                                 icon_view->priv->anchor_item,
2868                                                 item);
2869     }
2870
2871   gtk_icon_view_scroll_to_item (icon_view, item);
2872
2873   if (dirty)
2874     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2875 }
2876
2877 static void
2878 gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view,
2879                                       gint         count)
2880 {
2881   GtkIconViewItem *item;
2882   gboolean dirty = FALSE;
2883
2884   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
2885     return;
2886
2887   if (!icon_view->priv->cursor_item)
2888     {
2889       GList *list;
2890
2891       if (count > 0)
2892         list = icon_view->priv->items;
2893       else
2894         list = g_list_last (icon_view->priv->items);
2895
2896       item = list ? list->data : NULL;
2897     }
2898   else
2899     item = find_item (icon_view,
2900                       icon_view->priv->cursor_item,
2901                       0, count);
2902
2903   if (!item)
2904     return;
2905
2906   if (icon_view->priv->ctrl_pressed ||
2907       !icon_view->priv->shift_pressed ||
2908       !icon_view->priv->anchor_item ||
2909       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
2910     icon_view->priv->anchor_item = item;
2911
2912   gtk_icon_view_set_cursor_item (icon_view, item);
2913
2914   if (!icon_view->priv->ctrl_pressed &&
2915       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
2916     {
2917       gtk_icon_view_unselect_all_internal (icon_view);
2918       dirty = gtk_icon_view_select_all_between (icon_view,
2919                                                 icon_view->priv->anchor_item,
2920                                                 item);
2921     }
2922
2923   gtk_icon_view_scroll_to_item (icon_view, item);
2924
2925   if (dirty)
2926     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2927 }
2928
2929 static void
2930 gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view,
2931                                      gint         count)
2932 {
2933   GtkIconViewItem *item;
2934   GList *list;
2935   gboolean dirty = FALSE;
2936
2937   if (!GTK_WIDGET_HAS_FOCUS (icon_view))
2938     return;
2939
2940   if (count < 0)
2941     list = icon_view->priv->items;
2942   else
2943     list = g_list_last (icon_view->priv->items);
2944
2945   item = list ? list->data : NULL;
2946
2947   if (!item)
2948     return;
2949
2950   if (icon_view->priv->ctrl_pressed ||
2951       !icon_view->priv->shift_pressed ||
2952       !icon_view->priv->anchor_item ||
2953       icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
2954     icon_view->priv->anchor_item = item;
2955
2956   gtk_icon_view_set_cursor_item (icon_view, item);
2957
2958   if (!icon_view->priv->ctrl_pressed &&
2959       icon_view->priv->selection_mode != GTK_SELECTION_NONE)
2960     {
2961       gtk_icon_view_unselect_all (icon_view);
2962       dirty = gtk_icon_view_select_all_between (icon_view,
2963                                                 icon_view->priv->anchor_item,
2964                                                 item);
2965     }
2966
2967   gtk_icon_view_scroll_to_item (icon_view, item);
2968
2969   if (dirty)
2970     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
2971 }
2972
2973 static void
2974 gtk_icon_view_scroll_to_item (GtkIconView     *icon_view,
2975                               GtkIconViewItem *item)
2976 {
2977   gint y, height;
2978   gdouble value;
2979
2980   gdk_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window), NULL, &height);
2981   gdk_window_get_position (icon_view->priv->bin_window, NULL, &y);
2982
2983   if (y + item->y < 0)
2984     {
2985       value = icon_view->priv->vadjustment->value + y + item->y;
2986       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
2987     }
2988   else if (y + item->y + item->height > GTK_WIDGET (icon_view)->allocation.height)
2989     {
2990       value = icon_view->priv->vadjustment->value + y + item->y + item->height
2991         - GTK_WIDGET (icon_view)->allocation.height;
2992       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
2993     }
2994 }
2995
2996 /* Public API */
2997
2998
2999 /**
3000  * gtk_icon_view_new:
3001  *
3002  * Creates a new #GtkIconView widget
3003  *
3004  * Return value: A newly created #GtkIconView widget
3005  *
3006  * Since: 2.6
3007  **/
3008 GtkWidget *
3009 gtk_icon_view_new (void)
3010 {
3011   return g_object_new (GTK_TYPE_ICON_VIEW, NULL);
3012 }
3013
3014 /**
3015  * gtk_icon_view_new_with_model:
3016  * @model: The model.
3017  *
3018  * Creates a new #GtkIconView widget with the model @model.
3019  *
3020  * Return value: A newly created #GtkIconView widget.
3021  *
3022  * Since: 2.6
3023  **/
3024 GtkWidget *
3025 gtk_icon_view_new_with_model (GtkTreeModel *model)
3026 {
3027   return g_object_new (GTK_TYPE_ICON_VIEW, "model", model, NULL);
3028 }
3029
3030
3031 /**
3032  * gtk_icon_view_get_path_at_pos:
3033  * @icon_view: A #GtkIconView.
3034  * @x: The x position to be identified
3035  * @y: The y position to be identified
3036  *
3037  * Finds the path at the point (@x, @y), relative to widget coordinates.
3038  *
3039  * Return value: The #GtkTreePath corresponding to the icon or %NULL
3040  * if no icon exists at that position.
3041  *
3042  * Since: 2.6
3043  **/
3044 GtkTreePath *
3045 gtk_icon_view_get_path_at_pos (GtkIconView *icon_view,
3046                                gint         x,
3047                                gint         y)
3048 {
3049   GtkIconViewItem *item;
3050   GtkTreePath *path;
3051
3052   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
3053
3054   item = gtk_icon_view_get_item_at_pos (icon_view, x, y);
3055
3056   if (!item)
3057     return NULL;
3058
3059   path = gtk_tree_path_new_from_indices (item->index, -1);
3060
3061   return path;
3062 }
3063
3064 /**
3065  * gtk_icon_view_selected_foreach:
3066  * @icon_view: A #GtkIconView.
3067  * @func: The funcion to call for each selected icon.
3068  * @data: User data to pass to the function.
3069  *
3070  * Calls a function for each selected icon. Note that the model or
3071  * selection cannot be modified from within this function.
3072  *
3073  * Since: 2.6
3074  **/
3075 void
3076 gtk_icon_view_selected_foreach (GtkIconView           *icon_view,
3077                                 GtkIconViewForeachFunc func,
3078                                 gpointer               data)
3079 {
3080   GList *list;
3081
3082   for (list = icon_view->priv->items; list; list = list->next)
3083     {
3084       GtkIconViewItem *item = list->data;
3085       GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
3086
3087       if (item->selected)
3088         (* func) (icon_view, path, data);
3089
3090       gtk_tree_path_free (path);
3091     }
3092 }
3093
3094 /**
3095  * gtk_icon_view_set_selection_mode:
3096  * @icon_view: A #GtkIconView.
3097  * @mode: The selection mode
3098  *
3099  * Sets the selection mode of the @icon_view.
3100  *
3101  * Since: 2.6
3102  **/
3103 void
3104 gtk_icon_view_set_selection_mode (GtkIconView      *icon_view,
3105                                   GtkSelectionMode  mode)
3106 {
3107   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3108
3109   if (mode == icon_view->priv->selection_mode)
3110     return;
3111
3112   if (mode == GTK_SELECTION_NONE ||
3113       icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
3114     gtk_icon_view_unselect_all (icon_view);
3115
3116   icon_view->priv->selection_mode = mode;
3117
3118   g_object_notify (G_OBJECT (icon_view), "selection_mode");
3119 }
3120
3121 /**
3122  * gtk_icon_view_get_selection_mode:
3123  * @icon_view: A #GtkIconView.
3124  *
3125  * Gets the selection mode of the @icon_view.
3126  *
3127  * Return value: the current selection mode
3128  *
3129  * Since: 2.6
3130  **/
3131 GtkSelectionMode
3132 gtk_icon_view_get_selection_mode (GtkIconView *icon_view)
3133 {
3134   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE);
3135
3136   return icon_view->priv->selection_mode;
3137 }
3138
3139 /**
3140  * gtk_icon_view_set_model:
3141  * @icon_view: A #GtkIconView.
3142  * @model: The model.
3143  *
3144  * Sets the model for a #GtkIconView.
3145  * If the @icon_view already has a model set, it will remove
3146  * it before setting the new model.  If @model is %NULL, then
3147  * it will unset the old model.
3148  *
3149  * Since: 2.6
3150  **/
3151 void
3152 gtk_icon_view_set_model (GtkIconView *icon_view,
3153                          GtkTreeModel *model)
3154 {
3155   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3156   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
3157
3158   if (icon_view->priv->model == model)
3159     return;
3160
3161   if (model)
3162     {
3163       GType column_type;
3164
3165       g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY);
3166
3167       if (icon_view->priv->pixbuf_column != -1)
3168         {
3169           column_type = gtk_tree_model_get_column_type (model,
3170                                                         icon_view->priv->pixbuf_column);
3171
3172           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
3173         }
3174
3175       if (icon_view->priv->text_column != -1)
3176         {
3177           column_type = gtk_tree_model_get_column_type (model,
3178                                                         icon_view->priv->text_column);
3179
3180           g_return_if_fail (column_type == G_TYPE_STRING);
3181         }
3182
3183       if (icon_view->priv->markup_column != -1)
3184         {
3185           column_type = gtk_tree_model_get_column_type (model,
3186                                                         icon_view->priv->markup_column);
3187
3188           g_return_if_fail (column_type == G_TYPE_STRING);
3189         }
3190
3191     }
3192
3193   if (icon_view->priv->model)
3194     {
3195       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
3196                                             gtk_icon_view_row_changed,
3197                                             icon_view);
3198       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
3199                                             gtk_icon_view_row_inserted,
3200                                             icon_view);
3201       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
3202                                             gtk_icon_view_row_deleted,
3203                                             icon_view);
3204       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
3205                                             gtk_icon_view_rows_reordered,
3206                                             icon_view);
3207
3208       g_object_unref (icon_view->priv->model);
3209
3210       g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_free, NULL);
3211       g_list_free (icon_view->priv->items);
3212       icon_view->priv->items = NULL;
3213       icon_view->priv->anchor_item = NULL;
3214       icon_view->priv->cursor_item = NULL;
3215       icon_view->priv->last_single_clicked = NULL;
3216     }
3217
3218   icon_view->priv->model = model;
3219
3220   if (icon_view->priv->model)
3221     {
3222       g_object_ref (icon_view->priv->model);
3223       g_signal_connect (icon_view->priv->model,
3224                         "row_changed",
3225                         G_CALLBACK (gtk_icon_view_row_changed),
3226                         icon_view);
3227       g_signal_connect (icon_view->priv->model,
3228                         "row_inserted",
3229                         G_CALLBACK (gtk_icon_view_row_inserted),
3230                         icon_view);
3231       g_signal_connect (icon_view->priv->model,
3232                         "row_deleted",
3233                         G_CALLBACK (gtk_icon_view_row_deleted),
3234                         icon_view);
3235       g_signal_connect (icon_view->priv->model,
3236                         "rows_reordered",
3237                         G_CALLBACK (gtk_icon_view_rows_reordered),
3238                         icon_view);
3239
3240       gtk_icon_view_build_items (icon_view);
3241     }
3242
3243   gtk_icon_view_queue_layout (icon_view);
3244
3245   g_object_notify (G_OBJECT (icon_view), "model");
3246 }
3247
3248 /**
3249  * gtk_icon_view_get_model:
3250  * @icon_view: a #GtkIconView
3251  *
3252  * Returns the model the #GtkIconView is based on.  Returns %NULL if the
3253  * model is unset.
3254  *
3255  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
3256  *
3257  * Since: 2.6
3258  **/
3259 GtkTreeModel *
3260 gtk_icon_view_get_model (GtkIconView *icon_view)
3261 {
3262   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
3263
3264   return icon_view->priv->model;
3265 }
3266
3267 /**
3268  * gtk_icon_view_set_text_column:
3269  * @icon_view: A #GtkIconView.
3270  * @column: A column in the currently used model.
3271  *
3272  * Sets the column with text for @icon_view to be @column. The text
3273  * column must be of type #G_TYPE_STRING.
3274  *
3275  * Since: 2.6
3276  **/
3277 void
3278 gtk_icon_view_set_text_column (GtkIconView *icon_view,
3279                                gint          column)
3280 {
3281   if (column == icon_view->priv->text_column)
3282     return;
3283
3284   if (column == -1)
3285     icon_view->priv->text_column = -1;
3286   else
3287     {
3288       if (icon_view->priv->model != NULL)
3289         {
3290           GType column_type;
3291
3292           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3293
3294           g_return_if_fail (column_type == G_TYPE_STRING);
3295         }
3296
3297       icon_view->priv->text_column = column;
3298     }
3299
3300   gtk_icon_view_invalidate_sizes (icon_view);
3301   gtk_icon_view_queue_layout (icon_view);
3302
3303   g_object_notify (G_OBJECT (icon_view), "text_column");
3304 }
3305
3306 /**
3307  * gtk_icon_view_get_text_column:
3308  * @icon_view: A #GtkIconView.
3309  *
3310  * Returns the column with text for @icon_view.
3311  *
3312  * Returns: the text column, or -1 if it's unset.
3313  *
3314  * Since: 2.6
3315  */
3316 gint
3317 gtk_icon_view_get_text_column (GtkIconView  *icon_view)
3318 {
3319   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3320
3321   return icon_view->priv->text_column;
3322 }
3323
3324 /**
3325  * gtk_icon_view_set_markup_column:
3326  * @icon_view: A #GtkIconView.
3327  * @column: A column in the currently used model.
3328  *
3329  * Sets the column with markup information for @icon_view to be
3330  * @column. The markup column must be of type #G_TYPE_STRING.
3331  * If the markup column is set to something, it overrides
3332  * the text column set by gtk_icon_view_set_text_column().
3333  *
3334  * Since: 2.6
3335  **/
3336 void
3337 gtk_icon_view_set_markup_column (GtkIconView *icon_view,
3338                                  gint         column)
3339 {
3340   if (column == icon_view->priv->markup_column)
3341     return;
3342
3343   if (column == -1)
3344     icon_view->priv->markup_column = -1;
3345   else
3346     {
3347       if (icon_view->priv->model != NULL)
3348         {
3349           GType column_type;
3350
3351           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3352
3353           g_return_if_fail (column_type == G_TYPE_STRING);
3354         }
3355
3356       icon_view->priv->markup_column = column;
3357     }
3358
3359   gtk_icon_view_invalidate_sizes (icon_view);
3360   gtk_icon_view_queue_layout (icon_view);
3361
3362   g_object_notify (G_OBJECT (icon_view), "markup_column");
3363 }
3364
3365 /**
3366  * gtk_icon_view_get_markup_column:
3367  * @icon_view: A #GtkIconView.
3368  *
3369  * Returns the column with markup text for @icon_view.
3370  *
3371  * Returns: the markup column, or -1 if it's unset.
3372  *
3373  * Since: 2.6
3374  */
3375 gint
3376 gtk_icon_view_get_markup_column (GtkIconView  *icon_view)
3377 {
3378   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3379
3380   return icon_view->priv->markup_column;
3381 }
3382
3383 /**
3384  * gtk_icon_view_set_pixbuf_column:
3385  * @icon_view: A #GtkIconView.
3386  * @column: A column in the currently used model.
3387  *
3388  * Sets the column with pixbufs for @icon_view to be @column. The pixbuf
3389  * column must be of type #GDK_TYPE_PIXBUF
3390  *
3391  * Since: 2.6
3392  **/
3393 void
3394 gtk_icon_view_set_pixbuf_column (GtkIconView *icon_view,
3395                                  gint         column)
3396 {
3397   if (column == icon_view->priv->pixbuf_column)
3398     return;
3399
3400   if (column == -1)
3401     icon_view->priv->pixbuf_column = -1;
3402   else
3403     {
3404       if (icon_view->priv->model != NULL)
3405         {
3406           GType column_type;
3407
3408           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3409
3410           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
3411         }
3412
3413       icon_view->priv->pixbuf_column = column;
3414     }
3415
3416   gtk_icon_view_invalidate_sizes (icon_view);
3417   gtk_icon_view_queue_layout (icon_view);
3418
3419   g_object_notify (G_OBJECT (icon_view), "pixbuf_column");
3420
3421 }
3422
3423 /**
3424  * gtk_icon_view_get_pixbuf_column:
3425  * @icon_view: A #GtkIconView.
3426  *
3427  * Returns the column with pixbufs for @icon_view.
3428  *
3429  * Returns: the pixbuf column, or -1 if it's unset.
3430  *
3431  * Since: 2.6
3432  */
3433 gint
3434 gtk_icon_view_get_pixbuf_column (GtkIconView  *icon_view)
3435 {
3436   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3437
3438   return icon_view->priv->pixbuf_column;
3439 }
3440
3441 /**
3442  * gtk_icon_view_select_path:
3443  * @icon_view: A #GtkIconView.
3444  * @path: The #GtkTreePath to be selected.
3445  *
3446  * Selects the row at @path.
3447  *
3448  * Since: 2.6
3449  **/
3450 void
3451 gtk_icon_view_select_path (GtkIconView *icon_view,
3452                            GtkTreePath *path)
3453 {
3454   GtkIconViewItem *item;
3455
3456   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3457   g_return_if_fail (icon_view->priv->model != NULL);
3458   g_return_if_fail (path != NULL);
3459
3460   item = g_list_nth (icon_view->priv->items,
3461                      gtk_tree_path_get_indices(path)[0])->data;
3462
3463   if (!item)
3464     return;
3465
3466   gtk_icon_view_select_item (icon_view, item);
3467 }
3468
3469 /**
3470  * gtk_icon_view_unselect_path:
3471  * @icon_view: A #GtkIconView.
3472  * @path: The #GtkTreePath to be unselected.
3473  *
3474  * Unselects the row at @path.
3475  *
3476  * Since: 2.6
3477  **/
3478 void
3479 gtk_icon_view_unselect_path (GtkIconView *icon_view,
3480                              GtkTreePath *path)
3481 {
3482   GtkIconViewItem *item;
3483
3484   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3485   g_return_if_fail (icon_view->priv->model != NULL);
3486   g_return_if_fail (path != NULL);
3487
3488   item = g_list_nth (icon_view->priv->items,
3489                      gtk_tree_path_get_indices(path)[0])->data;
3490
3491   if (!item)
3492     return;
3493
3494   gtk_icon_view_unselect_item (icon_view, item);
3495 }
3496
3497 /**
3498  * gtk_icon_view_get_selected_items:
3499  * @icon_view: A #GtkIconView.
3500  *
3501  * Creates a list of paths of all selected items. Additionally, if you are
3502  * planning on modifying the model after calling this function, you may
3503  * want to convert the returned list into a list of #GtkTreeRowReference<!-- -->s.
3504  * To do this, you can use gtk_tree_row_reference_new().
3505  *
3506  * To free the return value, use:
3507  * <informalexample><programlisting>
3508  * g_list_foreach (list, gtk_tree_path_free, NULL);
3509  * g_list_free (list);
3510  * </programlisting></informalexample>
3511  *
3512  * Return value: A #GList containing a #GtkTreePath for each selected row.
3513  *
3514  * Since: 2.6
3515  **/
3516 GList *
3517 gtk_icon_view_get_selected_items (GtkIconView *icon_view)
3518 {
3519   GList *list;
3520   GList *selected = NULL;
3521
3522   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
3523
3524   for (list = icon_view->priv->items; list != NULL; list = list->next)
3525     {
3526       GtkIconViewItem *item = list->data;
3527
3528       if (item->selected)
3529         {
3530           GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
3531
3532           selected = g_list_prepend (selected, path);
3533         }
3534     }
3535
3536   return selected;
3537 }
3538
3539 /**
3540  * gtk_icon_view_select_all:
3541  * @icon_view: A #GtkIconView.
3542  *
3543  * Selects all the icons. @icon_view must has its selection mode set
3544  * to #GTK_SELECTION_MULTIPLE.
3545  *
3546  * Since: 2.6
3547  **/
3548 void
3549 gtk_icon_view_select_all (GtkIconView *icon_view)
3550 {
3551   GList *items;
3552   gboolean dirty = FALSE;
3553
3554   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3555
3556   if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3557     return;
3558
3559   for (items = icon_view->priv->items; items; items = items->next)
3560     {
3561       GtkIconViewItem *item = items->data;
3562
3563       if (!item->selected)
3564         {
3565           dirty = TRUE;
3566           item->selected = TRUE;
3567           gtk_icon_view_queue_draw_item (icon_view, item);
3568         }
3569     }
3570
3571   if (dirty)
3572     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3573 }
3574
3575 /**
3576  * gtk_icon_view_unselect_all:
3577  * @icon_view: A #GtkIconView.
3578  *
3579  * Unselects all the icons.
3580  *
3581  * Since: 2.6
3582  **/
3583 void
3584 gtk_icon_view_unselect_all (GtkIconView *icon_view)
3585 {
3586   gboolean dirty = FALSE;
3587
3588   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3589
3590   if (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
3591     return;
3592
3593   dirty = gtk_icon_view_unselect_all_internal (icon_view);
3594
3595   if (dirty)
3596     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3597 }
3598
3599 /**
3600  * gtk_icon_view_path_is_selected:
3601  * @icon_view: A #GtkIconView.
3602  * @path: A #GtkTreePath to check selection on.
3603  *
3604  * Returns %TRUE if the icon pointed to by @path is currently
3605  * selected. If @icon does not point to a valid location, %FALSE is returned.
3606  *
3607  * Return value: %TRUE if @path is selected.
3608  *
3609  * Since: 2.6
3610  **/
3611 gboolean
3612 gtk_icon_view_path_is_selected (GtkIconView *icon_view,
3613                                 GtkTreePath *path)
3614 {
3615   GtkIconViewItem *item;
3616
3617   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
3618   g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
3619   g_return_val_if_fail (path != NULL, FALSE);
3620
3621   item = g_list_nth (icon_view->priv->items,
3622                      gtk_tree_path_get_indices(path)[0])->data;
3623
3624   if (!item)
3625     return FALSE;
3626
3627   return item->selected;
3628 }
3629
3630 /**
3631  * gtk_icon_view_item_activated:
3632  * @icon_view: A #GtkIconView
3633  * @path: The #GtkTreePath to be activated
3634  *
3635  * Activates the item determined by @path.
3636  *
3637  * Since: 2.6
3638  **/
3639 void
3640 gtk_icon_view_item_activated (GtkIconView      *icon_view,
3641                               GtkTreePath      *path)
3642 {
3643   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3644   g_return_if_fail (path != NULL);
3645
3646   g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path);
3647 }
3648
3649 /**
3650  * gtk_icon_view_set_orientation:
3651  * @icon_view: a #GtkIconView
3652  * @orientation: the relative position of texts and icons
3653  *
3654  * Sets the ::orientation property which determines whether the labels
3655  * are drawn beside the icons instead of below.
3656  *
3657  * Since: 2.6
3658  **/
3659 void
3660 gtk_icon_view_set_orientation (GtkIconView    *icon_view,
3661                                GtkOrientation  orientation)
3662 {
3663   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3664
3665   if (icon_view->priv->orientation != orientation)
3666     {
3667       icon_view->priv->orientation = orientation;
3668
3669       gtk_icon_view_invalidate_sizes (icon_view);
3670       gtk_icon_view_queue_layout (icon_view);
3671
3672       g_object_notify (G_OBJECT (icon_view), "orientation");
3673     }
3674 }
3675
3676 /**
3677  * gtk_icon_view_get_orientation:
3678  * @icon_view: a #GtkIconView
3679  *
3680  * Returns the value of the ::orientation property which determines
3681  * whether the labels are drawn beside the icons instead of below.
3682  *
3683  * Return value: the relative position of texts and icons
3684  *
3685  * Since: 2.6
3686  **/
3687 GtkOrientation
3688 gtk_icon_view_get_orientation (GtkIconView *icon_view)
3689 {
3690   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view),
3691                         GTK_ORIENTATION_VERTICAL);
3692
3693   return icon_view->priv->orientation;
3694 }
3695
3696 void gtk_icon_view_set_columns (GtkIconView *icon_view,
3697                                 gint         columns)
3698 {
3699   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3700
3701   if (icon_view->priv->columns != columns)
3702     {
3703       icon_view->priv->columns = columns;
3704
3705       gtk_icon_view_queue_layout (icon_view);
3706
3707       g_object_notify (G_OBJECT (icon_view), "columns");
3708     }
3709 }
3710
3711 gint
3712 gtk_icon_view_get_columns (GtkIconView *icon_view)
3713 {
3714   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3715
3716   return icon_view->priv->columns;
3717 }
3718
3719 void gtk_icon_view_set_item_width (GtkIconView *icon_view,
3720                                    gint         item_width)
3721 {
3722   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3723
3724   if (icon_view->priv->item_width != item_width)
3725     {
3726       icon_view->priv->item_width = item_width;
3727
3728       gtk_icon_view_invalidate_sizes (icon_view);
3729       gtk_icon_view_queue_layout (icon_view);
3730
3731       g_object_notify (G_OBJECT (icon_view), "item-width");
3732     }
3733 }
3734
3735 gint
3736 gtk_icon_view_get_item_width (GtkIconView *icon_view)
3737 {
3738   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3739
3740   return icon_view->priv->item_width;
3741 }
3742
3743
3744 void gtk_icon_view_set_spacing (GtkIconView *icon_view,
3745                                 gint         spacing)
3746 {
3747   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3748
3749   if (icon_view->priv->spacing != spacing)
3750     {
3751       icon_view->priv->spacing = spacing;
3752
3753       gtk_icon_view_invalidate_sizes (icon_view);
3754       gtk_icon_view_queue_layout (icon_view);
3755
3756       g_object_notify (G_OBJECT (icon_view), "spacing");
3757     }
3758 }
3759
3760 gint
3761 gtk_icon_view_get_spacing (GtkIconView *icon_view)
3762 {
3763   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3764
3765   return icon_view->priv->spacing;
3766 }
3767
3768 void gtk_icon_view_set_row_spacing (GtkIconView *icon_view,
3769                                     gint         row_spacing)
3770 {
3771   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3772
3773   if (icon_view->priv->row_spacing != row_spacing)
3774     {
3775       icon_view->priv->row_spacing = row_spacing;
3776
3777       gtk_icon_view_invalidate_sizes (icon_view);
3778       gtk_icon_view_queue_layout (icon_view);
3779
3780       g_object_notify (G_OBJECT (icon_view), "row-spacing");
3781     }
3782 }
3783
3784 gint
3785 gtk_icon_view_get_row_spacing (GtkIconView *icon_view)
3786 {
3787   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3788
3789   return icon_view->priv->row_spacing;
3790 }
3791
3792 void gtk_icon_view_set_column_spacing (GtkIconView *icon_view,
3793                                        gint         column_spacing)
3794 {
3795   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3796
3797   if (icon_view->priv->column_spacing != column_spacing)
3798     {
3799       icon_view->priv->column_spacing = column_spacing;
3800
3801       gtk_icon_view_invalidate_sizes (icon_view);
3802       gtk_icon_view_queue_layout (icon_view);
3803
3804       g_object_notify (G_OBJECT (icon_view), "column-spacing");
3805     }
3806 }
3807
3808 gint
3809 gtk_icon_view_get_column_spacing (GtkIconView *icon_view)
3810 {
3811   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3812
3813   return icon_view->priv->column_spacing;
3814 }
3815
3816 void gtk_icon_view_set_margin (GtkIconView *icon_view,
3817                                gint         margin)
3818 {
3819   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3820
3821   if (icon_view->priv->margin != margin)
3822     {
3823       icon_view->priv->margin = margin;
3824
3825       gtk_icon_view_invalidate_sizes (icon_view);
3826       gtk_icon_view_queue_layout (icon_view);
3827
3828       g_object_notify (G_OBJECT (icon_view), "margin");
3829     }
3830 }
3831
3832 gint
3833 gtk_icon_view_get_margin (GtkIconView *icon_view)
3834 {
3835   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3836
3837   return icon_view->priv->margin;
3838 }
3839
3840
3841 /* Accessibility Support */
3842
3843 static gpointer accessible_parent_class;
3844 static gpointer accessible_item_parent_class;
3845 static GQuark accessible_private_data_quark = 0;
3846
3847 #define GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE      (gtk_icon_view_item_accessible_get_type ())
3848 #define GTK_ICON_VIEW_ITEM_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE, GtkIconViewItemAccessible))
3849 #define GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE))
3850
3851 static GType gtk_icon_view_item_accessible_get_type (void);
3852
3853 enum {
3854     ACTION_ACTIVATE,
3855     LAST_ACTION
3856 };
3857
3858 typedef struct
3859 {
3860   AtkObject parent;
3861
3862   GtkIconViewItem *item;
3863
3864   GtkWidget *widget;
3865
3866   AtkStateSet *state_set;
3867
3868   gchar *text;
3869
3870   GtkTextBuffer *text_buffer;
3871
3872   gchar *action_descriptions[LAST_ACTION];
3873   gchar *image_description;
3874   guint action_idle_handler;
3875 } GtkIconViewItemAccessible;
3876
3877 static const gchar *gtk_icon_view_item_accessible_action_names[] =
3878 {
3879   "activate",
3880   NULL
3881 };
3882
3883 static const gchar *gtk_icon_view_item_accessible_action_descriptions[] =
3884 {
3885   "Activate item",
3886   NULL
3887 };
3888 typedef struct _GtkIconViewItemAccessibleClass
3889 {
3890   AtkObjectClass parent_class;
3891
3892 } GtkIconViewItemAccessibleClass;
3893
3894 static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item);
3895
3896 static gboolean
3897 gtk_icon_view_item_accessible_idle_do_action (gpointer data)
3898 {
3899   GtkIconViewItemAccessible *item;
3900   GtkIconView *icon_view;
3901   GtkTreePath *path;
3902
3903   GDK_THREADS_ENTER ();
3904
3905   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (data);
3906   item->action_idle_handler = 0;
3907
3908   if (item->widget != NULL)
3909     {
3910       icon_view = GTK_ICON_VIEW (item->widget);
3911       path = gtk_tree_path_new_from_indices (item->item->index, -1);
3912       gtk_icon_view_item_activated (icon_view, path);
3913       gtk_tree_path_free (path);
3914     }
3915
3916   GDK_THREADS_LEAVE ();
3917
3918   return FALSE;
3919 }
3920
3921 static gboolean
3922 gtk_icon_view_item_accessible_action_do_action (AtkAction *action,
3923                                                 gint       i)
3924 {
3925   GtkIconViewItemAccessible *item;
3926   GtkIconView *icon_view;
3927
3928   if (i < 0 || i >= LAST_ACTION)
3929     return FALSE;
3930
3931   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3932
3933   if (!GTK_IS_ICON_VIEW (item->widget))
3934     return FALSE;
3935
3936   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3937     return FALSE;
3938
3939   icon_view = GTK_ICON_VIEW (item->widget);
3940
3941   switch (i)
3942     {
3943     case ACTION_ACTIVATE:
3944       if (!item->action_idle_handler)
3945         item->action_idle_handler = g_idle_add (gtk_icon_view_item_accessible_idle_do_action, item);
3946       break;
3947     default:
3948       g_assert_not_reached ();
3949       return FALSE;
3950
3951     }
3952   return TRUE;
3953 }
3954
3955 static gint
3956 gtk_icon_view_item_accessible_action_get_n_actions (AtkAction *action)
3957 {
3958         return LAST_ACTION;
3959 }
3960
3961 static const gchar *
3962 gtk_icon_view_item_accessible_action_get_description (AtkAction *action,
3963                                                       gint       i)
3964 {
3965   GtkIconViewItemAccessible *item;
3966
3967   if (i < 0 || i >= LAST_ACTION)
3968     return NULL;
3969
3970   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3971
3972   if (item->action_descriptions[i])
3973     return item->action_descriptions[i];
3974   else
3975     return gtk_icon_view_item_accessible_action_descriptions[i];
3976 }
3977
3978 static const gchar *
3979 gtk_icon_view_item_accessible_action_get_name (AtkAction *action,
3980                                                gint       i)
3981 {
3982   if (i < 0 || i >= LAST_ACTION)
3983     return NULL;
3984
3985   return gtk_icon_view_item_accessible_action_names[i];
3986 }
3987
3988 static gboolean
3989 gtk_icon_view_item_accessible_action_set_description (AtkAction   *action,
3990                                                       gint         i,
3991                                                       const gchar *description)
3992 {
3993   GtkIconViewItemAccessible *item;
3994
3995   if (i < 0 || i >= LAST_ACTION)
3996     return FALSE;
3997
3998   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3999
4000   if (item->action_descriptions[i])
4001     g_free (item->action_descriptions[i]);
4002
4003   item->action_descriptions[i] = g_strdup (description);
4004
4005   return TRUE;
4006 }
4007
4008 static void
4009 atk_action_item_interface_init (AtkActionIface *iface)
4010 {
4011   iface->do_action = gtk_icon_view_item_accessible_action_do_action;
4012   iface->get_n_actions = gtk_icon_view_item_accessible_action_get_n_actions;
4013   iface->get_description = gtk_icon_view_item_accessible_action_get_description;
4014   iface->get_name = gtk_icon_view_item_accessible_action_get_name;
4015   iface->set_description = gtk_icon_view_item_accessible_action_set_description;
4016 }
4017
4018 static const gchar *
4019 gtk_icon_view_item_accessible_image_get_image_description (AtkImage *image)
4020 {
4021   GtkIconViewItemAccessible *item;
4022
4023   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
4024
4025   return item->image_description;
4026 }
4027
4028 static gboolean
4029 gtk_icon_view_item_accessible_image_set_image_description (AtkImage    *image,
4030                                                            const gchar *description)
4031 {
4032   GtkIconViewItemAccessible *item;
4033
4034   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
4035
4036   g_free (item->image_description);
4037   item->image_description = g_strdup (item->image_description);
4038
4039   return TRUE;
4040 }
4041
4042 static void
4043 gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image,
4044                                                     gint     *width,
4045                                                     gint     *height)
4046 {
4047   GtkIconViewItemAccessible *item;
4048
4049   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
4050
4051   if (!GTK_IS_ICON_VIEW (item->widget))
4052     return;
4053
4054   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4055     return;
4056
4057   *width = item->item->pixbuf_width;
4058   *height = item->item->pixbuf_height;
4059 }
4060
4061 static void
4062 gtk_icon_view_item_accessible_image_get_image_position (AtkImage    *image,
4063                                                         gint        *x,
4064                                                         gint        *y,
4065                                                         AtkCoordType coord_type)
4066 {
4067   GtkIconViewItemAccessible *item;
4068
4069   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
4070
4071   if (!GTK_IS_ICON_VIEW (item->widget))
4072     return;
4073
4074   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4075     return;
4076
4077   atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
4078   *x+= item->item->pixbuf_x - item->item->x;
4079   *y+= item->item->pixbuf_y - item->item->y;
4080 }
4081
4082 static void
4083 atk_image_item_interface_init (AtkImageIface *iface)
4084 {
4085   iface->get_image_description = gtk_icon_view_item_accessible_image_get_image_description;
4086   iface->set_image_description = gtk_icon_view_item_accessible_image_set_image_description;
4087   iface->get_image_size = gtk_icon_view_item_accessible_image_get_image_size;
4088   iface->get_image_position = gtk_icon_view_item_accessible_image_get_image_position;
4089 }
4090
4091 static gchar *
4092 gtk_icon_view_item_accessible_text_get_text (AtkText *text,
4093                                              gint     start_pos,
4094                                              gint     end_pos)
4095 {
4096   GtkIconViewItemAccessible *item;
4097   GtkTextIter start, end;
4098   GtkTextBuffer *buffer;
4099
4100   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4101
4102   if (!GTK_IS_ICON_VIEW (item->widget))
4103     return NULL;
4104
4105   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4106     return NULL;
4107
4108   buffer = item->text_buffer;
4109   gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
4110   if (end_pos < 0)
4111     gtk_text_buffer_get_end_iter (buffer, &end);
4112   else
4113     gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
4114
4115   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4116 }
4117
4118 static gunichar
4119 gtk_icon_view_item_accessible_text_get_character_at_offset (AtkText *text,
4120                                                             gint     offset)
4121 {
4122   GtkIconViewItemAccessible *item;
4123   GtkTextIter start, end;
4124   GtkTextBuffer *buffer;
4125   gchar *string;
4126   gunichar unichar;
4127
4128   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4129
4130   if (!GTK_IS_ICON_VIEW (item->widget))
4131     return '\0';
4132
4133   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4134     return '\0';
4135
4136   buffer = item->text_buffer;
4137   if (offset >= gtk_text_buffer_get_char_count (buffer))
4138     return '\0';
4139
4140   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4141   end = start;
4142   gtk_text_iter_forward_char (&end);
4143   string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
4144   unichar = g_utf8_get_char (string);
4145   g_free(string);
4146
4147   return unichar;
4148 }
4149
4150 static void
4151 get_pango_text_offsets (PangoLayout     *layout,
4152                         GtkTextBuffer   *buffer,
4153                         gint             function,
4154                         AtkTextBoundary  boundary_type,
4155                         gint             offset,
4156                         gint            *start_offset,
4157                         gint            *end_offset,
4158                         GtkTextIter     *start_iter,
4159                         GtkTextIter     *end_iter)
4160 {
4161   PangoLayoutIter *iter;
4162   PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL;
4163   gint index, start_index, end_index;
4164   const gchar *text;
4165   gboolean found = FALSE;
4166
4167   text = pango_layout_get_text (layout);
4168   index = g_utf8_offset_to_pointer (text, offset) - text;
4169   iter = pango_layout_get_iter (layout);
4170   do
4171     {
4172       line = pango_layout_iter_get_line (iter);
4173       start_index = line->start_index;
4174       end_index = start_index + line->length;
4175
4176       if (index >= start_index && index <= end_index)
4177         {
4178           /*
4179            * Found line for offset
4180            */
4181           switch (function)
4182             {
4183             case 0:
4184                   /*
4185                    * We want the previous line
4186                    */
4187               if (prev_line)
4188                 {
4189                   switch (boundary_type)
4190                     {
4191                     case ATK_TEXT_BOUNDARY_LINE_START:
4192                       end_index = start_index;
4193                       start_index = prev_line->start_index;
4194                       break;
4195                     case ATK_TEXT_BOUNDARY_LINE_END:
4196                       if (prev_prev_line)
4197                         start_index = prev_prev_line->start_index +
4198                                   prev_prev_line->length;
4199                       end_index = prev_line->start_index + prev_line->length;
4200                       break;
4201                     default:
4202                       g_assert_not_reached();
4203                     }
4204                 }
4205               else
4206                 start_index = end_index = 0;
4207               break;
4208             case 1:
4209               switch (boundary_type)
4210                 {
4211                 case ATK_TEXT_BOUNDARY_LINE_START:
4212                   if (pango_layout_iter_next_line (iter))
4213                     end_index = pango_layout_iter_get_line (iter)->start_index;
4214                   break;
4215                 case ATK_TEXT_BOUNDARY_LINE_END:
4216                   if (prev_line)
4217                     start_index = prev_line->start_index +
4218                                   prev_line->length;
4219                   break;
4220                 default:
4221                   g_assert_not_reached();
4222                 }
4223               break;
4224             case 2:
4225                /*
4226                 * We want the next line
4227                 */
4228               if (pango_layout_iter_next_line (iter))
4229                 {
4230                   line = pango_layout_iter_get_line (iter);
4231                   switch (boundary_type)
4232                     {
4233                     case ATK_TEXT_BOUNDARY_LINE_START:
4234                       start_index = line->start_index;
4235                       if (pango_layout_iter_next_line (iter))
4236                         end_index = pango_layout_iter_get_line (iter)->start_index;
4237                       else
4238                         end_index = start_index + line->length;
4239                       break;
4240                     case ATK_TEXT_BOUNDARY_LINE_END:
4241                       start_index = end_index;
4242                       end_index = line->start_index + line->length;
4243                       break;
4244                     default:
4245                       g_assert_not_reached();
4246                     }
4247                 }
4248               else
4249                 start_index = end_index;
4250               break;
4251             }
4252           found = TRUE;
4253           break;
4254         }
4255       prev_prev_line = prev_line;
4256       prev_line = line;
4257     }
4258   while (pango_layout_iter_next_line (iter));
4259
4260   if (!found)
4261     {
4262       start_index = prev_line->start_index + prev_line->length;
4263       end_index = start_index;
4264     }
4265   pango_layout_iter_free (iter);
4266   *start_offset = g_utf8_pointer_to_offset (text, text + start_index);
4267   *end_offset = g_utf8_pointer_to_offset (text, text + end_index);
4268
4269   gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset);
4270   gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset);
4271 }
4272
4273 static gchar*
4274 gtk_icon_view_item_accessible_text_get_text_before_offset (AtkText         *text,
4275                                                            gint            offset,
4276                                                            AtkTextBoundary boundary_type,
4277                                                            gint            *start_offset,
4278                                                            gint            *end_offset)
4279 {
4280   GtkIconViewItemAccessible *item;
4281   GtkTextIter start, end;
4282   GtkTextBuffer *buffer;
4283   GtkIconView *icon_view;
4284
4285   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4286
4287   if (!GTK_IS_ICON_VIEW (item->widget))
4288     return NULL;
4289
4290   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4291     return NULL;
4292
4293   buffer = item->text_buffer;
4294
4295   if (!gtk_text_buffer_get_char_count (buffer))
4296     {
4297       *start_offset = 0;
4298       *end_offset = 0;
4299       return g_strdup ("");
4300     }
4301   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4302
4303   end = start;
4304
4305   switch (boundary_type)
4306     {
4307     case ATK_TEXT_BOUNDARY_CHAR:
4308       gtk_text_iter_backward_char(&start);
4309       break;
4310     case ATK_TEXT_BOUNDARY_WORD_START:
4311       if (!gtk_text_iter_starts_word (&start))
4312         gtk_text_iter_backward_word_start (&start);
4313       end = start;
4314       gtk_text_iter_backward_word_start(&start);
4315       break;
4316     case ATK_TEXT_BOUNDARY_WORD_END:
4317       if (gtk_text_iter_inside_word (&start) &&
4318           !gtk_text_iter_starts_word (&start))
4319         gtk_text_iter_backward_word_start (&start);
4320       while (!gtk_text_iter_ends_word (&start))
4321         {
4322           if (!gtk_text_iter_backward_char (&start))
4323             break;
4324         }
4325       end = start;
4326       gtk_text_iter_backward_word_start(&start);
4327       while (!gtk_text_iter_ends_word (&start))
4328         {
4329           if (!gtk_text_iter_backward_char (&start))
4330             break;
4331         }
4332       break;
4333     case ATK_TEXT_BOUNDARY_SENTENCE_START:
4334       if (!gtk_text_iter_starts_sentence (&start))
4335         gtk_text_iter_backward_sentence_start (&start);
4336       end = start;
4337       gtk_text_iter_backward_sentence_start (&start);
4338       break;
4339     case ATK_TEXT_BOUNDARY_SENTENCE_END:
4340       if (gtk_text_iter_inside_sentence (&start) &&
4341           !gtk_text_iter_starts_sentence (&start))
4342         gtk_text_iter_backward_sentence_start (&start);
4343       while (!gtk_text_iter_ends_sentence (&start))
4344         {
4345           if (!gtk_text_iter_backward_char (&start))
4346             break;
4347         }
4348       end = start;
4349       gtk_text_iter_backward_sentence_start (&start);
4350       while (!gtk_text_iter_ends_sentence (&start))
4351         {
4352           if (!gtk_text_iter_backward_char (&start))
4353             break;
4354         }
4355       break;
4356    case ATK_TEXT_BOUNDARY_LINE_START:
4357    case ATK_TEXT_BOUNDARY_LINE_END:
4358       icon_view = GTK_ICON_VIEW (item->widget);
4359       gtk_icon_view_update_item_text (icon_view, item->item);
4360       get_pango_text_offsets (icon_view->priv->layout,
4361                               buffer,
4362                               0,
4363                               boundary_type,
4364                               offset,
4365                               start_offset,
4366                               end_offset,
4367                               &start,
4368                               &end);
4369       break;
4370     }
4371
4372   *start_offset = gtk_text_iter_get_offset (&start);
4373   *end_offset = gtk_text_iter_get_offset (&end);
4374
4375   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4376 }
4377
4378 static gchar*
4379 gtk_icon_view_item_accessible_text_get_text_at_offset (AtkText         *text,
4380                                                        gint            offset,
4381                                                        AtkTextBoundary boundary_type,
4382                                                        gint            *start_offset,
4383                                                        gint            *end_offset)
4384 {
4385   GtkIconViewItemAccessible *item;
4386   GtkTextIter start, end;
4387   GtkTextBuffer *buffer;
4388   GtkIconView *icon_view;
4389
4390   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4391
4392   if (!GTK_IS_ICON_VIEW (item->widget))
4393     return NULL;
4394
4395   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4396     return NULL;
4397
4398   buffer = item->text_buffer;
4399
4400   if (!gtk_text_buffer_get_char_count (buffer))
4401     {
4402       *start_offset = 0;
4403       *end_offset = 0;
4404       return g_strdup ("");
4405     }
4406   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4407
4408   end = start;
4409
4410   switch (boundary_type)
4411     {
4412     case ATK_TEXT_BOUNDARY_CHAR:
4413       gtk_text_iter_forward_char (&end);
4414       break;
4415     case ATK_TEXT_BOUNDARY_WORD_START:
4416       if (!gtk_text_iter_starts_word (&start))
4417         gtk_text_iter_backward_word_start (&start);
4418       if (gtk_text_iter_inside_word (&end))
4419         gtk_text_iter_forward_word_end (&end);
4420       while (!gtk_text_iter_starts_word (&end))
4421         {
4422           if (!gtk_text_iter_forward_char (&end))
4423             break;
4424         }
4425       break;
4426     case ATK_TEXT_BOUNDARY_WORD_END:
4427       if (gtk_text_iter_inside_word (&start) &&
4428           !gtk_text_iter_starts_word (&start))
4429         gtk_text_iter_backward_word_start (&start);
4430       while (!gtk_text_iter_ends_word (&start))
4431         {
4432           if (!gtk_text_iter_backward_char (&start))
4433             break;
4434         }
4435       gtk_text_iter_forward_word_end (&end);
4436       break;
4437     case ATK_TEXT_BOUNDARY_SENTENCE_START:
4438       if (!gtk_text_iter_starts_sentence (&start))
4439         gtk_text_iter_backward_sentence_start (&start);
4440       if (gtk_text_iter_inside_sentence (&end))
4441         gtk_text_iter_forward_sentence_end (&end);
4442       while (!gtk_text_iter_starts_sentence (&end))
4443         {
4444           if (!gtk_text_iter_forward_char (&end))
4445             break;
4446         }
4447       break;
4448     case ATK_TEXT_BOUNDARY_SENTENCE_END:
4449       if (gtk_text_iter_inside_sentence (&start) &&
4450           !gtk_text_iter_starts_sentence (&start))
4451         gtk_text_iter_backward_sentence_start (&start);
4452       while (!gtk_text_iter_ends_sentence (&start))
4453         {
4454           if (!gtk_text_iter_backward_char (&start))
4455             break;
4456         }
4457       gtk_text_iter_forward_sentence_end (&end);
4458       break;
4459    case ATK_TEXT_BOUNDARY_LINE_START:
4460    case ATK_TEXT_BOUNDARY_LINE_END:
4461       icon_view = GTK_ICON_VIEW (item->widget);
4462       gtk_icon_view_update_item_text (icon_view, item->item);
4463       get_pango_text_offsets (icon_view->priv->layout,
4464                               buffer,
4465                               1,
4466                               boundary_type,
4467                               offset,
4468                               start_offset,
4469                               end_offset,
4470                               &start,
4471                               &end);
4472       break;
4473     }
4474
4475
4476   *start_offset = gtk_text_iter_get_offset (&start);
4477   *end_offset = gtk_text_iter_get_offset (&end);
4478
4479   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4480 }
4481
4482 static gchar*
4483 gtk_icon_view_item_accessible_text_get_text_after_offset (AtkText         *text,
4484                                                           gint            offset,
4485                                                           AtkTextBoundary boundary_type,
4486                                                           gint            *start_offset,
4487                                                           gint            *end_offset)
4488 {
4489   GtkIconViewItemAccessible *item;
4490   GtkTextIter start, end;
4491   GtkTextBuffer *buffer;
4492   GtkIconView *icon_view;
4493
4494   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4495
4496   if (!GTK_IS_ICON_VIEW (item->widget))
4497     return NULL;
4498
4499   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4500     return NULL;
4501
4502   buffer = item->text_buffer;
4503
4504   if (!gtk_text_buffer_get_char_count (buffer))
4505     {
4506       *start_offset = 0;
4507       *end_offset = 0;
4508       return g_strdup ("");
4509     }
4510   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4511
4512   end = start;
4513
4514   switch (boundary_type)
4515     {
4516     case ATK_TEXT_BOUNDARY_CHAR:
4517       gtk_text_iter_forward_char(&start);
4518       gtk_text_iter_forward_chars(&end, 2);
4519       break;
4520     case ATK_TEXT_BOUNDARY_WORD_START:
4521       if (gtk_text_iter_inside_word (&end))
4522         gtk_text_iter_forward_word_end (&end);
4523       while (!gtk_text_iter_starts_word (&end))
4524         {
4525           if (!gtk_text_iter_forward_char (&end))
4526             break;
4527         }
4528       start = end;
4529       if (!gtk_text_iter_is_end (&end))
4530         {
4531           gtk_text_iter_forward_word_end (&end);
4532           while (!gtk_text_iter_starts_word (&end))
4533             {
4534               if (!gtk_text_iter_forward_char (&end))
4535                 break;
4536             }
4537         }
4538       break;
4539     case ATK_TEXT_BOUNDARY_WORD_END:
4540       gtk_text_iter_forward_word_end (&end);
4541       start = end;
4542       if (!gtk_text_iter_is_end (&end))
4543         gtk_text_iter_forward_word_end (&end);
4544       break;
4545     case ATK_TEXT_BOUNDARY_SENTENCE_START:
4546       if (gtk_text_iter_inside_sentence (&end))
4547         gtk_text_iter_forward_sentence_end (&end);
4548       while (!gtk_text_iter_starts_sentence (&end))
4549         {
4550           if (!gtk_text_iter_forward_char (&end))
4551             break;
4552         }
4553       start = end;
4554       if (!gtk_text_iter_is_end (&end))
4555         {
4556           gtk_text_iter_forward_sentence_end (&end);
4557           while (!gtk_text_iter_starts_sentence (&end))
4558             {
4559               if (!gtk_text_iter_forward_char (&end))
4560                 break;
4561             }
4562         }
4563       break;
4564     case ATK_TEXT_BOUNDARY_SENTENCE_END:
4565       gtk_text_iter_forward_sentence_end (&end);
4566       start = end;
4567       if (!gtk_text_iter_is_end (&end))
4568         gtk_text_iter_forward_sentence_end (&end);
4569       break;
4570    case ATK_TEXT_BOUNDARY_LINE_START:
4571    case ATK_TEXT_BOUNDARY_LINE_END:
4572       icon_view = GTK_ICON_VIEW (item->widget);
4573       gtk_icon_view_update_item_text (icon_view, item->item);
4574       get_pango_text_offsets (icon_view->priv->layout,
4575                               buffer,
4576                               2,
4577                               boundary_type,
4578                               offset,
4579                               start_offset,
4580                               end_offset,
4581                               &start,
4582                               &end);
4583       break;
4584     }
4585   *start_offset = gtk_text_iter_get_offset (&start);
4586   *end_offset = gtk_text_iter_get_offset (&end);
4587
4588   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4589 }
4590
4591 static gint
4592 gtk_icon_view_item_accessible_text_get_character_count (AtkText *text)
4593 {
4594   GtkIconViewItemAccessible *item;
4595
4596   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4597
4598   if (!GTK_IS_ICON_VIEW (item->widget))
4599     return 0;
4600
4601   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4602     return 0;
4603
4604   return gtk_text_buffer_get_char_count (item->text_buffer);
4605 }
4606
4607 static void
4608 gtk_icon_view_item_accessible_text_get_character_extents (AtkText      *text,
4609                                                           gint         offset,
4610                                                           gint         *x,
4611                                                           gint         *y,
4612                                                           gint         *width,
4613                                                           gint         *height,
4614                                                           AtkCoordType coord_type)
4615 {
4616   GtkIconViewItemAccessible *item;
4617   GtkIconView *icon_view;
4618   PangoRectangle char_rect;
4619   const gchar *item_text;
4620   gint index;
4621
4622   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4623
4624   if (!GTK_IS_ICON_VIEW (item->widget))
4625     return;
4626
4627   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4628     return;
4629
4630   icon_view = GTK_ICON_VIEW (item->widget);
4631   gtk_icon_view_update_item_text (icon_view, item->item);
4632   item_text = pango_layout_get_text (icon_view->priv->layout);
4633   index = g_utf8_offset_to_pointer (item_text, offset) - item_text;
4634   pango_layout_index_to_pos (icon_view->priv->layout, index, &char_rect);
4635
4636   atk_component_get_position (ATK_COMPONENT (text), x, y, coord_type);
4637   *x += item->item->layout_x - item->item->x + char_rect.x / PANGO_SCALE;
4638   /* Look at gtk_icon_view_paint_item() to see where the text is. */
4639   *x -=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
4640   *y += item->item->layout_y - item->item->y + char_rect.y / PANGO_SCALE;
4641   *width = char_rect.width / PANGO_SCALE;
4642   *height = char_rect.height / PANGO_SCALE;
4643 }
4644
4645 static gint
4646 gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText      *text,
4647                                                         gint          x,
4648                                                         gint          y,
4649                                                         AtkCoordType coord_type)
4650 {
4651   GtkIconViewItemAccessible *item;
4652   GtkIconView *icon_view;
4653   const gchar *item_text;
4654   gint index;
4655   gint offset;
4656   gint l_x, l_y;
4657
4658   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4659
4660   if (!GTK_IS_ICON_VIEW (item->widget))
4661     return -1;
4662
4663   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4664     return -1;
4665
4666   icon_view = GTK_ICON_VIEW (item->widget);
4667   gtk_icon_view_update_item_text (icon_view, item->item);
4668   atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type);
4669   x -= l_x + item->item->layout_x - item->item->x;
4670   x +=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2,
4671   y -= l_y + item->item->layout_y - item->item->y;
4672   item_text = pango_layout_get_text (icon_view->priv->layout);
4673   if (!pango_layout_xy_to_index (icon_view->priv->layout,
4674                                 x * PANGO_SCALE,
4675                                 y * PANGO_SCALE,
4676                                 &index, NULL))
4677     {
4678       if (x < 0 || y < 0)
4679         index = 0;
4680       else
4681         index = -1;
4682     }
4683   if (index == -1)
4684     offset = g_utf8_strlen (item_text, -1);
4685   else
4686     offset = g_utf8_pointer_to_offset (item_text, item_text + index);
4687
4688   return offset;
4689 }
4690
4691 static void
4692 atk_text_item_interface_init (AtkTextIface *iface)
4693 {
4694   iface->get_text = gtk_icon_view_item_accessible_text_get_text;
4695   iface->get_character_at_offset = gtk_icon_view_item_accessible_text_get_character_at_offset;
4696   iface->get_text_before_offset = gtk_icon_view_item_accessible_text_get_text_before_offset;
4697   iface->get_text_at_offset = gtk_icon_view_item_accessible_text_get_text_at_offset;
4698   iface->get_text_after_offset = gtk_icon_view_item_accessible_text_get_text_after_offset;
4699   iface->get_character_count = gtk_icon_view_item_accessible_text_get_character_count;
4700   iface->get_character_extents = gtk_icon_view_item_accessible_text_get_character_extents;
4701   iface->get_offset_at_point = gtk_icon_view_item_accessible_text_get_offset_at_point;
4702 }
4703
4704 static void
4705 gtk_icon_view_item_accessible_get_extents (AtkComponent *component,
4706                                            gint         *x,
4707                                            gint         *y,
4708                                            gint         *width,
4709                                            gint         *height,
4710                                            AtkCoordType  coord_type)
4711 {
4712   GtkIconViewItemAccessible *item;
4713   AtkObject *parent_obj;
4714   gint l_x, l_y;
4715
4716   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component));
4717
4718   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
4719   if (!GTK_IS_WIDGET (item->widget))
4720     return;
4721
4722   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4723     return;
4724
4725   *width = item->item->width;
4726   *height = item->item->height;
4727   if (gtk_icon_view_item_accessible_is_showing (item))
4728     {
4729       parent_obj = gtk_widget_get_accessible (item->widget);
4730       atk_component_get_position (ATK_COMPONENT (parent_obj), &l_x, &l_y, coord_type);
4731       *x = l_x + item->item->x;
4732       *y = l_y + item->item->y;
4733     }
4734   else
4735     {
4736       *x = G_MININT;
4737       *y = G_MININT;
4738     }
4739 }
4740
4741 static gboolean
4742 gtk_icon_view_item_accessible_grab_focus (AtkComponent *component)
4743 {
4744   GtkIconViewItemAccessible *item;
4745   GtkWidget *toplevel;
4746
4747   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component), FALSE);
4748
4749   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
4750   if (!GTK_IS_WIDGET (item->widget))
4751     return FALSE;
4752
4753   gtk_widget_grab_focus (item->widget);
4754   gtk_icon_view_set_cursor_item (GTK_ICON_VIEW (item->widget), item->item);
4755   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget));
4756   if (GTK_WIDGET_TOPLEVEL (toplevel))
4757     gtk_window_present (GTK_WINDOW (toplevel));
4758
4759   return TRUE;
4760 }
4761
4762 static void
4763 atk_component_item_interface_init (AtkComponentIface *iface)
4764 {
4765   iface->get_extents = gtk_icon_view_item_accessible_get_extents;
4766   iface->grab_focus = gtk_icon_view_item_accessible_grab_focus;
4767 }
4768
4769 static gboolean
4770 gtk_icon_view_item_accessible_add_state (GtkIconViewItemAccessible *item,
4771                                          AtkStateType               state_type,
4772                                          gboolean                   emit_signal)
4773 {
4774   gboolean rc;
4775
4776   rc = atk_state_set_add_state (item->state_set, state_type);
4777   /*
4778    * The signal should only be generated if the value changed,
4779    * not when the item is set up.  So states that are set
4780    * initially should pass FALSE as the emit_signal argument.
4781    */
4782
4783   if (emit_signal)
4784     {
4785       atk_object_notify_state_change (ATK_OBJECT (item), state_type, TRUE);
4786       /* If state_type is ATK_STATE_VISIBLE, additional notification */
4787       if (state_type == ATK_STATE_VISIBLE)
4788         g_signal_emit_by_name (item, "visible_data_changed");
4789     }
4790
4791   return rc;
4792 }
4793
4794 static gboolean
4795 gtk_icon_view_item_accessible_remove_state (GtkIconViewItemAccessible *item,
4796                                             AtkStateType               state_type,
4797                                             gboolean                   emit_signal)
4798 {
4799   if (atk_state_set_contains_state (item->state_set, state_type))
4800     {
4801       gboolean rc;
4802
4803       rc = atk_state_set_remove_state (item->state_set, state_type);
4804       /*
4805        * The signal should only be generated if the value changed,
4806        * not when the item is set up.  So states that are set
4807        * initially should pass FALSE as the emit_signal argument.
4808        */
4809
4810       if (emit_signal)
4811         {
4812           atk_object_notify_state_change (ATK_OBJECT (item), state_type, FALSE);
4813           /* If state_type is ATK_STATE_VISIBLE, additional notification */
4814           if (state_type == ATK_STATE_VISIBLE)
4815             g_signal_emit_by_name (item, "visible_data_changed");
4816         }
4817
4818       return rc;
4819     }
4820   else
4821     return FALSE;
4822 }
4823
4824 static gboolean
4825 gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item)
4826 {
4827   GtkIconView *icon_view;
4828   GdkRectangle visible_rect;
4829   gboolean is_showing;
4830
4831   /*
4832    * An item is considered "SHOWING" if any part of the item is in the
4833    * visible rectangle.
4834    */
4835
4836   if (!GTK_IS_ICON_VIEW (item->widget))
4837     return FALSE;
4838
4839   if (item->item == NULL)
4840     return FALSE;
4841
4842   icon_view = GTK_ICON_VIEW (item->widget);
4843   visible_rect.x = 0;
4844   if (icon_view->priv->hadjustment)
4845     visible_rect.x += icon_view->priv->hadjustment->value;
4846   visible_rect.y = 0;
4847   if (icon_view->priv->hadjustment)
4848     visible_rect.y += icon_view->priv->vadjustment->value;
4849   visible_rect.width = item->widget->allocation.width;
4850   visible_rect.height = item->widget->allocation.height;
4851
4852   if (((item->item->x + item->item->width) < visible_rect.x) ||
4853      ((item->item->y + item->item->height) < (visible_rect.y)) ||
4854      (item->item->x > (visible_rect.x + visible_rect.width)) ||
4855      (item->item->y > (visible_rect.y + visible_rect.height)))
4856     is_showing =  FALSE;
4857   else
4858     is_showing = TRUE;
4859
4860   return is_showing;
4861 }
4862
4863 static gboolean
4864 gtk_icon_view_item_accessible_set_visibility (GtkIconViewItemAccessible *item,
4865                                               gboolean                   emit_signal)
4866 {
4867   if (gtk_icon_view_item_accessible_is_showing (item))
4868     return gtk_icon_view_item_accessible_add_state (item, ATK_STATE_SHOWING,
4869                                                     emit_signal);
4870   else
4871     return gtk_icon_view_item_accessible_remove_state (item, ATK_STATE_SHOWING,
4872                                                        emit_signal);
4873 }
4874
4875 static void
4876 gtk_icon_view_item_accessible_object_init (GtkIconViewItemAccessible *item)
4877 {
4878   gint i;
4879
4880   item->state_set = atk_state_set_new ();
4881
4882   atk_state_set_add_state (item->state_set, ATK_STATE_ENABLED);
4883   atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSABLE);
4884   atk_state_set_add_state (item->state_set, ATK_STATE_SENSITIVE);
4885   atk_state_set_add_state (item->state_set, ATK_STATE_SELECTABLE);
4886   atk_state_set_add_state (item->state_set, ATK_STATE_VISIBLE);
4887
4888   for (i = 0; i < LAST_ACTION; i++)
4889     item->action_descriptions[i] = NULL;
4890
4891   item->image_description = NULL;
4892
4893   item->action_idle_handler = 0;
4894 }
4895
4896 static void
4897 gtk_icon_view_item_accessible_finalize (GObject *object)
4898 {
4899   GtkIconViewItemAccessible *item;
4900   gint i;
4901
4902   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (object));
4903
4904   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (object);
4905
4906   if (item->widget)
4907     g_object_remove_weak_pointer (G_OBJECT (item->widget), (gpointer) &item->widget);
4908
4909   if (item->state_set)
4910     g_object_unref (item->state_set);
4911
4912   if (item->text_buffer)
4913      g_object_unref (item->text_buffer);
4914
4915   for (i = 0; i < LAST_ACTION; i++)
4916     g_free (item->action_descriptions[i]);
4917
4918   g_free (item->image_description);
4919
4920   if (item->action_idle_handler)
4921     {
4922       g_source_remove (item->action_idle_handler);
4923       item->action_idle_handler = 0;
4924     }
4925
4926   G_OBJECT_CLASS (accessible_item_parent_class)->finalize (object);
4927 }
4928
4929 static G_CONST_RETURN gchar*
4930 gtk_icon_view_item_accessible_get_name (AtkObject *obj)
4931 {
4932   if (obj->name)
4933     return obj->name;
4934   else
4935     {
4936       GtkIconViewItemAccessible *item;
4937       GtkTextIter start_iter;
4938       GtkTextIter end_iter;
4939
4940       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4941
4942       gtk_text_buffer_get_start_iter (item->text_buffer, &start_iter);
4943       gtk_text_buffer_get_end_iter (item->text_buffer, &end_iter);
4944
4945       return gtk_text_buffer_get_text (item->text_buffer, &start_iter, &end_iter, FALSE);
4946     }
4947 }
4948
4949 static AtkObject*
4950 gtk_icon_view_item_accessible_get_parent (AtkObject *obj)
4951 {
4952   GtkIconViewItemAccessible *item;
4953
4954   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), NULL);
4955   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4956
4957   if (item->widget)
4958     return gtk_widget_get_accessible (item->widget);
4959   else
4960     return NULL;
4961 }
4962
4963 static gint
4964 gtk_icon_view_item_accessible_get_index_in_parent (AtkObject *obj)
4965 {
4966   GtkIconViewItemAccessible *item;
4967
4968   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), 0);
4969   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4970
4971   return item->item->index;
4972 }
4973
4974 static AtkStateSet *
4975 gtk_icon_view_item_accessible_ref_state_set (AtkObject *obj)
4976 {
4977   GtkIconViewItemAccessible *item;
4978   GtkIconView *icon_view;
4979
4980   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4981   g_return_val_if_fail (item->state_set, NULL);
4982
4983   if (!item->widget)
4984     return NULL;
4985
4986   icon_view = GTK_ICON_VIEW (item->widget);
4987   if (icon_view->priv->cursor_item == item->item)
4988     atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSED);
4989   else
4990     atk_state_set_remove_state (item->state_set, ATK_STATE_FOCUSED);
4991
4992   return g_object_ref (item->state_set);
4993 }
4994
4995 static void
4996 gtk_icon_view_item_accessible_class_init (AtkObjectClass *klass)
4997 {
4998   GObjectClass *gobject_class;
4999
5000   accessible_item_parent_class = g_type_class_peek_parent (klass);
5001
5002   gobject_class = (GObjectClass *)klass;
5003
5004   gobject_class->finalize = gtk_icon_view_item_accessible_finalize;
5005
5006   klass->get_index_in_parent = gtk_icon_view_item_accessible_get_index_in_parent;
5007   klass->get_name = gtk_icon_view_item_accessible_get_name;
5008   klass->get_parent = gtk_icon_view_item_accessible_get_parent;
5009   klass->ref_state_set = gtk_icon_view_item_accessible_ref_state_set;
5010 }
5011
5012 static GType
5013 gtk_icon_view_item_accessible_get_type (void)
5014 {
5015   static GType type = 0;
5016
5017   if (!type)
5018     {
5019       static const GTypeInfo tinfo =
5020       {
5021         sizeof (GtkIconViewItemAccessibleClass),
5022         (GBaseInitFunc) NULL, /* base init */
5023         (GBaseFinalizeFunc) NULL, /* base finalize */
5024         (GClassInitFunc) gtk_icon_view_item_accessible_class_init, /* class init */
5025         (GClassFinalizeFunc) NULL, /* class finalize */
5026         NULL, /* class data */
5027         sizeof (GtkIconViewItemAccessible), /* instance size */
5028         0, /* nb preallocs */
5029         (GInstanceInitFunc) gtk_icon_view_item_accessible_object_init, /* instance init */
5030         NULL /* value table */
5031       };
5032
5033       static const GInterfaceInfo atk_component_info =
5034       {
5035         (GInterfaceInitFunc) atk_component_item_interface_init,
5036         (GInterfaceFinalizeFunc) NULL,
5037         NULL
5038       };
5039       static const GInterfaceInfo atk_action_info =
5040       {
5041         (GInterfaceInitFunc) atk_action_item_interface_init,
5042         (GInterfaceFinalizeFunc) NULL,
5043         NULL
5044       };
5045       static const GInterfaceInfo atk_image_info =
5046       {
5047         (GInterfaceInitFunc) atk_image_item_interface_init,
5048         (GInterfaceFinalizeFunc) NULL,
5049         NULL
5050       };
5051       static const GInterfaceInfo atk_text_info =
5052       {
5053         (GInterfaceInitFunc) atk_text_item_interface_init,
5054         (GInterfaceFinalizeFunc) NULL,
5055         NULL
5056       };
5057
5058       type = g_type_register_static (ATK_TYPE_OBJECT,
5059                                      "GtkIconViewItemAccessible", &tinfo, 0);
5060       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
5061                                    &atk_component_info);
5062       g_type_add_interface_static (type, ATK_TYPE_ACTION,
5063                                    &atk_action_info);
5064       g_type_add_interface_static (type, ATK_TYPE_IMAGE,
5065                                    &atk_image_info);
5066       g_type_add_interface_static (type, ATK_TYPE_TEXT,
5067                                    &atk_text_info);
5068     }
5069
5070   return type;
5071 }
5072
5073 #define GTK_TYPE_ICON_VIEW_ACCESSIBLE      (gtk_icon_view_accessible_get_type ())
5074 #define GTK_ICON_VIEW_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE, GtkIconViewAccessible))
5075 #define GTK_IS_ICON_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE))
5076
5077 static GType gtk_icon_view_accessible_get_type (void);
5078
5079 typedef struct
5080 {
5081    AtkObject parent;
5082 } GtkIconViewAccessible;
5083
5084 typedef struct
5085 {
5086   AtkObject *item;
5087   gint       index;
5088 } GtkIconViewItemAccessibleInfo;
5089
5090 typedef struct
5091 {
5092   GList *items;
5093
5094   GtkAdjustment *old_hadj;
5095   GtkAdjustment *old_vadj;
5096
5097   GtkTreeModel *model;
5098
5099 } GtkIconViewAccessiblePrivate;
5100
5101 static GtkIconViewAccessiblePrivate *
5102 gtk_icon_view_accessible_get_priv (AtkObject *accessible)
5103 {
5104   return g_object_get_qdata (G_OBJECT (accessible),
5105                              accessible_private_data_quark);
5106 }
5107
5108 static void
5109 gtk_icon_view_item_accessible_info_new (AtkObject *accessible,
5110                                         AtkObject *item,
5111                                         gint       index)
5112 {
5113   GtkIconViewItemAccessibleInfo *info;
5114   GtkIconViewItemAccessibleInfo *tmp_info;
5115   GtkIconViewAccessiblePrivate *priv;
5116   GList *items;
5117
5118   info = g_new (GtkIconViewItemAccessibleInfo, 1);
5119   info->item = item;
5120   info->index = index;
5121
5122   priv = gtk_icon_view_accessible_get_priv (accessible);
5123   items = priv->items;
5124   while (items)
5125     {
5126       tmp_info = items->data;
5127       if (tmp_info->index > index)
5128         break;
5129       items = items->next;
5130     }
5131   priv->items = g_list_insert_before (priv->items, items, info);
5132   priv->old_hadj = NULL;
5133   priv->old_vadj = NULL;
5134 }
5135
5136 static gint
5137 gtk_icon_view_accessible_get_n_children (AtkObject *accessible)
5138 {
5139   GtkIconView *icon_view;
5140   GtkWidget *widget;
5141
5142   widget = GTK_ACCESSIBLE (accessible)->widget;
5143   if (!widget)
5144       return 0;
5145
5146   icon_view = GTK_ICON_VIEW (widget);
5147
5148   return g_list_length (icon_view->priv->items);
5149 }
5150
5151 static AtkObject *
5152 gtk_icon_view_accessible_find_child (AtkObject *accessible,
5153                                      gint       index)
5154 {
5155   GtkIconViewAccessiblePrivate *priv;
5156   GtkIconViewItemAccessibleInfo *info;
5157   GList *items;
5158
5159   priv = gtk_icon_view_accessible_get_priv (accessible);
5160   items = priv->items;
5161
5162   while (items)
5163     {
5164       info = items->data;
5165       if (info->index == index)
5166         return info->item;
5167       items = items->next;
5168     }
5169   return NULL;
5170 }
5171
5172 static AtkObject *
5173 gtk_icon_view_accessible_ref_child (AtkObject *accessible,
5174                                     gint       index)
5175 {
5176   GtkIconView *icon_view;
5177   GtkWidget *widget;
5178   GList *icons;
5179   AtkObject *obj;
5180   GtkIconViewItemAccessible *a11y_item;
5181
5182   widget = GTK_ACCESSIBLE (accessible)->widget;
5183   if (!widget)
5184     return NULL;
5185
5186   icon_view = GTK_ICON_VIEW (widget);
5187   icons = g_list_nth (icon_view->priv->items, index);
5188   obj = NULL;
5189   if (icons)
5190     {
5191       GtkIconViewItem *item = icons->data;
5192
5193       g_return_val_if_fail (item->index == index, NULL);
5194       obj = gtk_icon_view_accessible_find_child (accessible, index);
5195       if (!obj)
5196         {
5197           obj = g_object_new (gtk_icon_view_item_accessible_get_type (), NULL);
5198           gtk_icon_view_item_accessible_info_new (accessible,
5199                                                   obj,
5200                                                   index);
5201           obj->role = ATK_ROLE_ICON;
5202           a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
5203           a11y_item->item = item;
5204           a11y_item->widget = widget;
5205           a11y_item->text_buffer = gtk_text_buffer_new (NULL);
5206           gtk_icon_view_update_item_text (icon_view, item);
5207           gtk_text_buffer_set_text (a11y_item->text_buffer,
5208                                     pango_layout_get_text (icon_view->priv->layout),
5209                                     -1);
5210           gtk_icon_view_item_accessible_set_visibility (a11y_item, FALSE);
5211           g_object_add_weak_pointer (G_OBJECT (widget), (gpointer) &(a11y_item->widget));
5212        }
5213       g_object_ref (obj);
5214     }
5215   return obj;
5216 }
5217
5218 static void
5219 gtk_icon_view_accessible_traverse_items (GtkIconViewAccessible *view,
5220                                          GList                 *list)
5221 {
5222   GtkIconViewAccessiblePrivate *priv;
5223   GtkIconViewItemAccessibleInfo *info;
5224   GtkIconViewItemAccessible *item;
5225   GList *items;
5226
5227   priv =  gtk_icon_view_accessible_get_priv (ATK_OBJECT (view));
5228   if (priv->items)
5229     {
5230       GtkWidget *widget;
5231       gboolean act_on_item;
5232
5233       widget = GTK_ACCESSIBLE (view)->widget;
5234       if (widget == NULL)
5235         return;
5236
5237       items = priv->items;
5238
5239       act_on_item = (list == NULL);
5240
5241       while (items)
5242         {
5243
5244           info = (GtkIconViewItemAccessibleInfo *)items->data;
5245           item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5246
5247           if (act_on_item == FALSE && list == items)
5248             act_on_item = TRUE;
5249
5250           if (act_on_item)
5251             gtk_icon_view_item_accessible_set_visibility (item, TRUE);
5252
5253           items = items->next;
5254        }
5255    }
5256 }
5257
5258 static void
5259 gtk_icon_view_accessible_adjustment_changed (GtkAdjustment *adjustment,
5260                                              GtkIconView   *icon_view)
5261 {
5262   AtkObject *obj;
5263   GtkIconViewAccessible *view;
5264
5265   /*
5266    * The scrollbars have changed
5267    */
5268   obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
5269   view = GTK_ICON_VIEW_ACCESSIBLE (obj);
5270
5271   gtk_icon_view_accessible_traverse_items (view, NULL);
5272 }
5273
5274 static void
5275 gtk_icon_view_accessible_set_scroll_adjustments (GtkWidget      *widget,
5276                                                  GtkAdjustment *hadj,
5277                                                  GtkAdjustment *vadj)
5278 {
5279   AtkObject *atk_obj;
5280   GtkIconViewAccessiblePrivate *priv;
5281
5282   atk_obj = gtk_widget_get_accessible (widget);
5283   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5284
5285   if (priv->old_hadj != hadj)
5286     {
5287       if (priv->old_hadj)
5288         {
5289           g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
5290                                         (gpointer *)&priv->old_hadj);
5291
5292           g_signal_handlers_disconnect_by_func (priv->old_hadj,
5293                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
5294                                                 widget);
5295         }
5296       priv->old_hadj = hadj;
5297       if (priv->old_hadj)
5298         {
5299           g_object_add_weak_pointer (G_OBJECT (priv->old_hadj),
5300                                      (gpointer *)&priv->old_hadj);
5301           g_signal_connect (hadj,
5302                             "value-changed",
5303                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5304                             widget);
5305         }
5306     }
5307   if (priv->old_vadj != vadj)
5308     {
5309       if (priv->old_vadj)
5310         {
5311           g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
5312                                         (gpointer *)&priv->old_vadj);
5313
5314           g_signal_handlers_disconnect_by_func (priv->old_vadj,
5315                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
5316                                                 widget);
5317         }
5318       priv->old_vadj = vadj;
5319       if (priv->old_vadj)
5320         {
5321           g_object_add_weak_pointer (G_OBJECT (priv->old_vadj),
5322                                      (gpointer *)&priv->old_vadj);
5323           g_signal_connect (vadj,
5324                             "value-changed",
5325                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5326                             widget);
5327         }
5328     }
5329 }
5330
5331 static void
5332 gtk_icon_view_accessible_model_row_changed (GtkTreeModel *tree_model,
5333                                             GtkTreePath  *path,
5334                                             GtkTreeIter  *iter,
5335                                             gpointer     user_data)
5336 {
5337   AtkObject *atk_obj;
5338
5339   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5340   g_signal_emit_by_name (atk_obj, "visible-data-changed");
5341
5342   return;
5343 }
5344
5345 static void
5346 gtk_icon_view_accessible_model_row_inserted (GtkTreeModel *tree_model,
5347                                              GtkTreePath  *path,
5348                                              GtkTreeIter  *iter,
5349                                              gpointer     user_data)
5350 {
5351   GtkIconViewAccessiblePrivate *priv;
5352   GtkIconViewItemAccessibleInfo *info;
5353   GtkIconViewAccessible *view;
5354   GtkIconViewItemAccessible *item;
5355   GList *items;
5356   GList *tmp_list;
5357   AtkObject *atk_obj;
5358   gint index;
5359
5360   index = gtk_tree_path_get_indices(path)[0];
5361   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5362   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5363   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5364
5365   items = priv->items;
5366   tmp_list = NULL;
5367   while (items)
5368     {
5369       info = items->data;
5370       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5371       if (info->index != item->item->index)
5372         {
5373           if (info->index < index)
5374             g_warning ("Unexpected index value on insertion %d %d", index, info->index);
5375
5376           if (tmp_list == NULL)
5377             tmp_list = items;
5378
5379           info->index = item->item->index;
5380         }
5381
5382       items = items->next;
5383     }
5384   gtk_icon_view_accessible_traverse_items (view, tmp_list);
5385   g_signal_emit_by_name (atk_obj, "children_changed::add",
5386                          index, NULL, NULL);
5387   return;
5388 }
5389
5390 static void
5391 gtk_icon_view_accessible_model_row_deleted (GtkTreeModel *tree_model,
5392                                             GtkTreePath  *path,
5393                                             gpointer     user_data)
5394 {
5395   GtkIconViewAccessiblePrivate *priv;
5396   GtkIconViewItemAccessibleInfo *info;
5397   GtkIconViewAccessible *view;
5398   GtkIconViewItemAccessible *item;
5399   GList *items;
5400   GList *tmp_list;
5401   GList *deleted_item;
5402   AtkObject *atk_obj;
5403   gint index;
5404
5405   index = gtk_tree_path_get_indices(path)[0];
5406   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5407   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5408   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5409
5410   items = priv->items;
5411   tmp_list = NULL;
5412   deleted_item = NULL;
5413   info = NULL;
5414   while (items)
5415     {
5416       info = items->data;
5417       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5418       if (info->index == index)
5419         {
5420           deleted_item = items;
5421         }
5422       if (info->index != item->item->index)
5423         {
5424           if (tmp_list == NULL)
5425             tmp_list = items;
5426           else
5427             info->index = item->item->index;
5428         }
5429
5430       items = items->next;
5431     }
5432   gtk_icon_view_accessible_traverse_items (view, tmp_list);
5433   if (deleted_item)
5434     {
5435       info = deleted_item->data;
5436       gtk_icon_view_item_accessible_add_state (GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item), ATK_STATE_DEFUNCT, TRUE);
5437     }
5438   g_signal_emit_by_name (atk_obj, "children_changed::remove",
5439                          index, NULL, NULL);
5440   if (deleted_item)
5441     {
5442       priv->items = g_list_remove_link (priv->items, deleted_item);
5443       g_free (info);
5444     }
5445
5446   return;
5447 }
5448
5449 static gint
5450 gtk_icon_view_accessible_item_compare (GtkIconViewItemAccessibleInfo *i1,
5451                                        GtkIconViewItemAccessibleInfo *i2)
5452 {
5453   return i1->index - i2->index;
5454 }
5455
5456 static void
5457 gtk_icon_view_accessible_model_rows_reordered (GtkTreeModel *tree_model,
5458                                                GtkTreePath  *path,
5459                                                GtkTreeIter  *iter,
5460                                                gint         *new_order,
5461                                                gpointer     user_data)
5462 {
5463   GtkIconViewAccessiblePrivate *priv;
5464   GtkIconViewItemAccessibleInfo *info;
5465   GtkIconViewAccessible *view;
5466   GtkIconView *icon_view;
5467   GtkIconViewItemAccessible *item;
5468   GList *items;
5469   GList *tmp_list;
5470   AtkObject *atk_obj;
5471
5472   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5473   icon_view = GTK_ICON_VIEW (user_data);
5474   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5475   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5476
5477   items = priv->items;
5478   tmp_list = NULL;
5479   while (items)
5480     {
5481       info = items->data;
5482       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5483       info->index = new_order[info->index];
5484       tmp_list = g_list_nth (icon_view->priv->items, info->index);
5485       item->item = tmp_list->data;
5486       items = items->next;
5487     }
5488   priv->items = g_list_sort (priv->items,
5489                              (GCompareFunc)gtk_icon_view_accessible_item_compare);
5490
5491   return;
5492 }
5493
5494 static void
5495 gtk_icon_view_accessible_disconnect_model_signals (GtkTreeModel *model,
5496                                                    GtkWidget *widget)
5497 {
5498   GObject *obj;
5499
5500   obj = G_OBJECT (model);
5501   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_changed, widget);
5502   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_inserted, widget);
5503   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_deleted, widget);
5504   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_rows_reordered, widget);
5505 }
5506
5507 static void
5508 gtk_icon_view_accessible_connect_model_signals (GtkIconView *icon_view)
5509 {
5510   GObject *obj;
5511
5512   obj = G_OBJECT (icon_view->priv->model);
5513   g_signal_connect_data (obj, "row-changed",
5514                          (GCallback) gtk_icon_view_accessible_model_row_changed,
5515                          icon_view, NULL, 0);
5516   g_signal_connect_data (obj, "row-inserted",
5517                          (GCallback) gtk_icon_view_accessible_model_row_inserted,
5518                          icon_view, NULL, G_CONNECT_AFTER);
5519   g_signal_connect_data (obj, "row-deleted",
5520                          (GCallback) gtk_icon_view_accessible_model_row_deleted,
5521                          icon_view, NULL, G_CONNECT_AFTER);
5522   g_signal_connect_data (obj, "rows-reordered",
5523                          (GCallback) gtk_icon_view_accessible_model_rows_reordered,
5524                          icon_view, NULL, G_CONNECT_AFTER);
5525 }
5526
5527 static void
5528 gtk_icon_view_accessible_clear_cache (GtkIconViewAccessiblePrivate *priv)
5529 {
5530   GtkIconViewItemAccessibleInfo *info;
5531   GList *items;
5532
5533   items = priv->items;
5534   while (items)
5535     {
5536       info = (GtkIconViewItemAccessibleInfo *) items->data;
5537       g_object_unref (info->item);
5538       g_free (items->data);
5539       items = items->next;
5540     }
5541   g_list_free (priv->items);
5542   priv->items = NULL;
5543 }
5544
5545 static void
5546 gtk_icon_view_accessible_notify_gtk (GObject *obj,
5547                                      GParamSpec *pspec)
5548 {
5549   GtkIconView *icon_view;
5550   GtkWidget *widget;
5551   AtkObject *atk_obj;
5552   GtkIconViewAccessible *view;
5553   GtkIconViewAccessiblePrivate *priv;
5554
5555   if (strcmp (pspec->name, "model") == 0)
5556     {
5557       widget = GTK_WIDGET (obj);
5558       atk_obj = gtk_widget_get_accessible (widget);
5559       view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5560       priv = gtk_icon_view_accessible_get_priv (atk_obj);
5561       if (priv->model)
5562         {
5563           g_object_remove_weak_pointer (G_OBJECT (priv->model),
5564                                         (gpointer *)&priv->model);
5565           gtk_icon_view_accessible_disconnect_model_signals (priv->model, widget);
5566         }
5567       gtk_icon_view_accessible_clear_cache (priv);
5568
5569       icon_view = GTK_ICON_VIEW (obj);
5570       priv->model = icon_view->priv->model;
5571       /* If there is no model the GtkIconView is probably being destroyed */
5572       if (priv->model)
5573         {
5574           g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
5575           gtk_icon_view_accessible_connect_model_signals (icon_view);
5576         }
5577     }
5578
5579   return;
5580 }
5581
5582 static void
5583 gtk_icon_view_accessible_initialize (AtkObject *accessible,
5584                                      gpointer   data)
5585 {
5586   GtkIconViewAccessiblePrivate *priv;
5587   GtkIconView *icon_view;
5588
5589   if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize)
5590     ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data);
5591
5592   priv = g_new0 (GtkIconViewAccessiblePrivate, 1);
5593   g_object_set_qdata (G_OBJECT (accessible),
5594                       accessible_private_data_quark,
5595                       priv);
5596
5597   icon_view = GTK_ICON_VIEW (data);
5598   if (icon_view->priv->hadjustment)
5599     {
5600       priv->old_hadj = icon_view->priv->hadjustment;
5601       g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj);
5602       g_signal_connect (icon_view->priv->hadjustment,
5603                         "value-changed",
5604                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5605                         icon_view);
5606     }
5607   if (icon_view->priv->vadjustment)
5608     {
5609       priv->old_vadj = icon_view->priv->vadjustment;
5610       g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj);
5611       g_signal_connect (icon_view->priv->vadjustment,
5612                         "value-changed",
5613                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5614                         icon_view);
5615     }
5616   g_signal_connect_after (data,
5617                           "set_scroll_adjustments",
5618                           G_CALLBACK (gtk_icon_view_accessible_set_scroll_adjustments),
5619                           NULL);
5620   g_signal_connect (data,
5621                     "notify",
5622                     G_CALLBACK (gtk_icon_view_accessible_notify_gtk),
5623                     NULL);
5624
5625   priv->model = icon_view->priv->model;
5626   if (priv->model)
5627     {
5628       g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
5629       gtk_icon_view_accessible_connect_model_signals (icon_view);
5630     }
5631
5632   accessible->role = ATK_ROLE_LAYERED_PANE;
5633 }
5634
5635 static void
5636 gtk_icon_view_accessible_finalize (GObject *object)
5637 {
5638   GtkIconViewAccessiblePrivate *priv;
5639
5640   priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (object));
5641   gtk_icon_view_accessible_clear_cache (priv);
5642
5643   g_free (priv);
5644
5645   G_OBJECT_CLASS (accessible_parent_class)->finalize (object);
5646 }
5647
5648 static void
5649 gtk_icon_view_accessible_destroyed (GtkWidget *widget,
5650                                     GtkAccessible *accessible)
5651 {
5652   AtkObject *atk_obj;
5653   GtkIconViewAccessiblePrivate *priv;
5654
5655   atk_obj = ATK_OBJECT (accessible);
5656   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5657   if (priv->old_hadj)
5658     {
5659       g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
5660                                     (gpointer *)&priv->old_hadj);
5661
5662       g_signal_handlers_disconnect_by_func (priv->old_hadj,
5663                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
5664                                             widget);
5665       priv->old_hadj = NULL;
5666     }
5667   if (priv->old_vadj)
5668     {
5669       g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
5670                                     (gpointer *)&priv->old_vadj);
5671
5672       g_signal_handlers_disconnect_by_func (priv->old_vadj,
5673                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
5674                                             widget);
5675       priv->old_vadj = NULL;
5676     }
5677 }
5678
5679 static void
5680 gtk_icon_view_accessible_connect_widget_destroyed (GtkAccessible *accessible)
5681 {
5682   if (accessible->widget)
5683     {
5684       g_signal_connect_after (accessible->widget,
5685                               "destroy",
5686                               G_CALLBACK (gtk_icon_view_accessible_destroyed),
5687                               accessible);
5688     }
5689   GTK_ACCESSIBLE_CLASS (accessible_parent_class)->connect_widget_destroyed (accessible);
5690 }
5691
5692 static void
5693 gtk_icon_view_accessible_class_init (AtkObjectClass *klass)
5694 {
5695   GObjectClass *gobject_class;
5696   GtkAccessibleClass *accessible_class;
5697
5698   accessible_parent_class = g_type_class_peek_parent (klass);
5699
5700   gobject_class = (GObjectClass *)klass;
5701   accessible_class = (GtkAccessibleClass *)klass;
5702
5703   gobject_class->finalize = gtk_icon_view_accessible_finalize;
5704
5705   klass->get_n_children = gtk_icon_view_accessible_get_n_children;
5706   klass->ref_child = gtk_icon_view_accessible_ref_child;
5707   klass->initialize = gtk_icon_view_accessible_initialize;
5708
5709   accessible_class->connect_widget_destroyed = gtk_icon_view_accessible_connect_widget_destroyed;
5710
5711   accessible_private_data_quark = g_quark_from_static_string ("icon_view-accessible-private-data");
5712 }
5713
5714 static AtkObject*
5715 gtk_icon_view_accessible_ref_accessible_at_point (AtkComponent *component,
5716                                                   gint          x,
5717                                                   gint          y,
5718                                                   AtkCoordType  coord_type)
5719 {
5720   GtkWidget *widget;
5721   GtkIconView *icon_view;
5722   GtkIconViewItem *item;
5723   gint x_pos, y_pos;
5724
5725   widget = GTK_ACCESSIBLE (component)->widget;
5726   if (widget == NULL)
5727   /* State is defunct */
5728     return NULL;
5729
5730   icon_view = GTK_ICON_VIEW (widget);
5731   atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type);
5732   item = gtk_icon_view_get_item_at_pos (icon_view, x - x_pos, y - y_pos);
5733   if (item)
5734     return gtk_icon_view_accessible_ref_child (ATK_OBJECT (component), item->index);
5735
5736   return NULL;
5737 }
5738
5739 static void
5740 atk_component_interface_init (AtkComponentIface *iface)
5741 {
5742   iface->ref_accessible_at_point = gtk_icon_view_accessible_ref_accessible_at_point;
5743 }
5744
5745 static gboolean
5746 gtk_icon_view_accessible_add_selection (AtkSelection *selection,
5747                                         gint i)
5748 {
5749   GtkWidget *widget;
5750   GtkIconView *icon_view;
5751   GtkIconViewItem *item;
5752   GList *l;
5753
5754   widget = GTK_ACCESSIBLE (selection)->widget;
5755   if (widget == NULL)
5756     return FALSE;
5757
5758   icon_view = GTK_ICON_VIEW (widget);
5759
5760   l = g_list_nth (icon_view->priv->items, i);
5761   if (!l)
5762     return FALSE;
5763
5764   item = l->data;
5765   gtk_icon_view_select_item (icon_view, item);
5766
5767   return TRUE;
5768 }
5769
5770 static gboolean
5771 gtk_icon_view_accessible_clear_selection (AtkSelection *selection)
5772 {
5773   GtkWidget *widget;
5774   GtkIconView *icon_view;
5775
5776   widget = GTK_ACCESSIBLE (selection)->widget;
5777   if (widget == NULL)
5778     return FALSE;
5779
5780   icon_view = GTK_ICON_VIEW (widget);
5781   gtk_icon_view_unselect_all (icon_view);
5782
5783   return TRUE;
5784 }
5785
5786 static AtkObject*
5787 gtk_icon_view_accessible_ref_selection (AtkSelection *selection,
5788                                         gint          i)
5789 {
5790   GtkWidget *widget;
5791   GtkIconView *icon_view;
5792   GtkIconViewItem *item;
5793   GList *l;
5794
5795   widget = GTK_ACCESSIBLE (selection)->widget;
5796   if (widget == NULL)
5797     return NULL;
5798
5799   icon_view = GTK_ICON_VIEW (widget);
5800
5801   l = icon_view->priv->items;
5802   while (l)
5803     {
5804       item = l->data;
5805       if (item->selected)
5806         {
5807           if (i == 0)
5808             return atk_object_ref_accessible_child (gtk_widget_get_accessible (widget), item->index);
5809           else
5810             i--;
5811         }
5812       l = l->next;
5813     }
5814
5815   return NULL;
5816 }
5817
5818 static gint
5819 gtk_icon_view_accessible_get_selection_count (AtkSelection *selection)
5820 {
5821   GtkWidget *widget;
5822   GtkIconView *icon_view;
5823   GtkIconViewItem *item;
5824   GList *l;
5825   gint count;
5826
5827   widget = GTK_ACCESSIBLE (selection)->widget;
5828   if (widget == NULL)
5829     return 0;
5830
5831   icon_view = GTK_ICON_VIEW (widget);
5832
5833   l = icon_view->priv->items;
5834   count = 0;
5835   while (l)
5836     {
5837       item = l->data;
5838
5839       if (item->selected)
5840         count++;
5841
5842       l = l->next;
5843     }
5844
5845   return count;
5846 }
5847
5848 static gboolean
5849 gtk_icon_view_accessible_is_child_selected (AtkSelection *selection,
5850                                             gint          i)
5851 {
5852   GtkWidget *widget;
5853   GtkIconView *icon_view;
5854   GtkIconViewItem *item;
5855   GList *l;
5856
5857   widget = GTK_ACCESSIBLE (selection)->widget;
5858   if (widget == NULL)
5859     return FALSE;
5860
5861   icon_view = GTK_ICON_VIEW (widget);
5862   l = g_list_nth (icon_view->priv->items, i);
5863   if (!l)
5864     return FALSE;
5865
5866   item = l->data;
5867
5868   return item->selected;
5869 }
5870
5871 static gboolean
5872 gtk_icon_view_accessible_remove_selection (AtkSelection *selection,
5873                                            gint          i)
5874 {
5875   GtkWidget *widget;
5876   GtkIconView *icon_view;
5877   GtkIconViewItem *item;
5878   GList *l;
5879   gint count;
5880
5881   widget = GTK_ACCESSIBLE (selection)->widget;
5882   if (widget == NULL)
5883     return FALSE;
5884
5885   icon_view = GTK_ICON_VIEW (widget);
5886   l = icon_view->priv->items;
5887   count = 0;
5888   while (l)
5889     {
5890       item = l->data;
5891       if (item->selected)
5892         {
5893           if (count == i)
5894             {
5895               gtk_icon_view_unselect_item (icon_view, item);
5896               return TRUE;
5897             }
5898           count++;
5899         }
5900       l = l->next;
5901     }
5902
5903   return FALSE;
5904 }
5905
5906 static gboolean
5907 gtk_icon_view_accessible_select_all_selection (AtkSelection *selection)
5908 {
5909   GtkWidget *widget;
5910   GtkIconView *icon_view;
5911
5912   widget = GTK_ACCESSIBLE (selection)->widget;
5913   if (widget == NULL)
5914     return FALSE;
5915
5916   icon_view = GTK_ICON_VIEW (widget);
5917   gtk_icon_view_select_all (icon_view);
5918   return TRUE;
5919 }
5920
5921 static void
5922 gtk_icon_view_accessible_selection_interface_init (AtkSelectionIface *iface)
5923 {
5924   iface->add_selection = gtk_icon_view_accessible_add_selection;
5925   iface->clear_selection = gtk_icon_view_accessible_clear_selection;
5926   iface->ref_selection = gtk_icon_view_accessible_ref_selection;
5927   iface->get_selection_count = gtk_icon_view_accessible_get_selection_count;
5928   iface->is_child_selected = gtk_icon_view_accessible_is_child_selected;
5929   iface->remove_selection = gtk_icon_view_accessible_remove_selection;
5930   iface->select_all_selection = gtk_icon_view_accessible_select_all_selection;
5931 }
5932
5933 static GType
5934 gtk_icon_view_accessible_get_type (void)
5935 {
5936   static GType type = 0;
5937
5938   if (!type)
5939     {
5940       static GTypeInfo tinfo =
5941       {
5942         0, /* class size */
5943         (GBaseInitFunc) NULL, /* base init */
5944         (GBaseFinalizeFunc) NULL, /* base finalize */
5945         (GClassInitFunc) gtk_icon_view_accessible_class_init,
5946         (GClassFinalizeFunc) NULL, /* class finalize */
5947         NULL, /* class data */
5948         0, /* instance size */
5949         0, /* nb preallocs */
5950         (GInstanceInitFunc) NULL, /* instance init */
5951         NULL /* value table */
5952       };
5953       static const GInterfaceInfo atk_component_info =
5954       {
5955         (GInterfaceInitFunc) atk_component_interface_init,
5956         (GInterfaceFinalizeFunc) NULL,
5957         NULL
5958       };
5959       static GInterfaceInfo atk_selection_info =
5960       {
5961         (GInterfaceInitFunc) gtk_icon_view_accessible_selection_interface_init,
5962         (GInterfaceFinalizeFunc) NULL,
5963         NULL
5964       };
5965
5966       /*
5967        * Figure out the size of the class and instance
5968        * we are deriving from
5969        */
5970       AtkObjectFactory *factory;
5971       GType derived_type;
5972       GTypeQuery query;
5973       GType derived_atk_type;
5974
5975       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
5976       factory = atk_registry_get_factory (atk_get_default_registry (),
5977                                           derived_type);
5978       derived_atk_type = atk_object_factory_get_accessible_type (factory);
5979       g_type_query (derived_atk_type, &query);
5980       tinfo.class_size = query.class_size;
5981       tinfo.instance_size = query.instance_size;
5982
5983       type = g_type_register_static (derived_atk_type,
5984                                      "GtkIconViewAccessible",
5985                                      &tinfo, 0);
5986       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
5987                                    &atk_component_info);
5988       g_type_add_interface_static (type, ATK_TYPE_SELECTION,
5989                                    &atk_selection_info);
5990     }
5991   return type;
5992 }
5993
5994 static AtkObject *
5995 gtk_icon_view_accessible_new (GObject *obj)
5996 {
5997   AtkObject *accessible;
5998
5999   g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
6000
6001   accessible = g_object_new (gtk_icon_view_accessible_get_type (), NULL);
6002   atk_object_initialize (accessible, obj);
6003
6004   return accessible;
6005 }
6006
6007 static GType
6008 gtk_icon_view_accessible_factory_get_accessible_type (void)
6009 {
6010   return gtk_icon_view_accessible_get_type ();
6011 }
6012
6013 static AtkObject*
6014 gtk_icon_view_accessible_factory_create_accessible (GObject *obj)
6015 {
6016   return gtk_icon_view_accessible_new (obj);
6017 }
6018
6019 static void
6020 gtk_icon_view_accessible_factory_class_init (AtkObjectFactoryClass *klass)
6021 {
6022   klass->create_accessible = gtk_icon_view_accessible_factory_create_accessible;
6023   klass->get_accessible_type = gtk_icon_view_accessible_factory_get_accessible_type;
6024 }
6025
6026 static GType
6027 gtk_icon_view_accessible_factory_get_type (void)
6028 {
6029   static GType type = 0;
6030
6031   if (!type)
6032     {
6033       static const GTypeInfo tinfo =
6034       {
6035         sizeof (AtkObjectFactoryClass),
6036         NULL,           /* base_init */
6037         NULL,           /* base_finalize */
6038         (GClassInitFunc) gtk_icon_view_accessible_factory_class_init,
6039         NULL,           /* class_finalize */
6040         NULL,           /* class_data */
6041         sizeof (AtkObjectFactory),
6042         0,             /* n_preallocs */
6043         NULL, NULL
6044       };
6045
6046       type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
6047                                     "GtkIconViewAccessibleFactory",
6048                                     &tinfo, 0);
6049     }
6050   return type;
6051 }
6052
6053 static AtkObject *
6054 gtk_icon_view_get_accessible (GtkWidget *widget)
6055 {
6056   static gboolean first_time = TRUE;
6057
6058   if (first_time)
6059     {
6060       AtkObjectFactory *factory;
6061       AtkRegistry *registry;
6062       GType derived_type;
6063       GType derived_atk_type;
6064
6065       /*
6066        * Figure out whether accessibility is enabled by looking at the
6067        * type of the accessible object which would be created for
6068        * the parent type of GtkIconView.
6069        */
6070       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
6071
6072       registry = atk_get_default_registry ();
6073       factory = atk_registry_get_factory (registry,
6074                                           derived_type);
6075       derived_atk_type = atk_object_factory_get_accessible_type (factory);
6076       if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
6077         atk_registry_set_factory_type (registry,
6078                                        GTK_TYPE_ICON_VIEW,
6079                                        gtk_icon_view_accessible_factory_get_type ());
6080       first_time = FALSE;
6081     }
6082   return GTK_WIDGET_CLASS (parent_class)->get_accessible (widget);
6083 }
6084