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