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 ? list->data : NULL;
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 ? list->data : NULL;
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 ? list->data : NULL;
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 ? list->data : NULL;
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_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window), NULL, &height);
2776   gdk_window_get_position (icon_view->priv->bin_window, NULL, &y);
2777
2778   if (y + item->y < 0)
2779     {
2780       value = icon_view->priv->vadjustment->value + y + item->y;
2781       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
2782     }
2783   else if (y + item->y + item->height > GTK_WIDGET (icon_view)->allocation.height)
2784     {
2785       value = icon_view->priv->vadjustment->value + y + item->y + item->height
2786         - GTK_WIDGET (icon_view)->allocation.height;
2787       gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
2788     }
2789 }
2790
2791 /* Public API */
2792
2793
2794 /**
2795  * gtk_icon_view_new:
2796  *
2797  * Creates a new #GtkIconView widget
2798  *
2799  * Return value: A newly created #GtkIconView widget
2800  *
2801  * Since: 2.6
2802  **/
2803 GtkWidget *
2804 gtk_icon_view_new (void)
2805 {
2806   return g_object_new (GTK_TYPE_ICON_VIEW, NULL);
2807 }
2808
2809 /**
2810  * gtk_icon_view_new_with_model:
2811  * @model: The model.
2812  *
2813  * Creates a new #GtkIconView widget with the model @model.
2814  *
2815  * Return value: A newly created #GtkIconView widget.
2816  *
2817  * Since: 2.6
2818  **/
2819 GtkWidget *
2820 gtk_icon_view_new_with_model (GtkTreeModel *model)
2821 {
2822   return g_object_new (GTK_TYPE_ICON_VIEW, "model", model, NULL);
2823 }
2824
2825
2826 /**
2827  * gtk_icon_view_get_path_at_pos:
2828  * @icon_view: A #GtkIconView.
2829  * @x: The x position to be identified
2830  * @y: The y position to be identified
2831  *
2832  * Finds the path at the point (@x, @y), relative to widget coordinates.
2833  *
2834  * Return value: The #GtkTreePath corresponding to the icon or %NULL
2835  * if no icon exists at that position.
2836  *
2837  * Since: 2.6
2838  **/
2839 GtkTreePath *
2840 gtk_icon_view_get_path_at_pos (GtkIconView *icon_view,
2841                                gint         x,
2842                                gint         y)
2843 {
2844   GtkIconViewItem *item;
2845   GtkTreePath *path;
2846
2847   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
2848
2849   item = gtk_icon_view_get_item_at_pos (icon_view, x, y);
2850
2851   if (!item)
2852     return NULL;
2853
2854   path = gtk_tree_path_new_from_indices (item->index, -1);
2855
2856   return path;
2857 }
2858
2859 /**
2860  * gtk_icon_view_selected_foreach:
2861  * @icon_view: A #GtkIconView.
2862  * @func: The funcion to call for each selected icon.
2863  * @data: User data to pass to the function.
2864  *
2865  * Calls a function for each selected icon. Note that the model or
2866  * selection cannot be modified from within this function.
2867  *
2868  * Since: 2.6
2869  **/
2870 void
2871 gtk_icon_view_selected_foreach (GtkIconView           *icon_view,
2872                                 GtkIconViewForeachFunc func,
2873                                 gpointer               data)
2874 {
2875   GList *list;
2876
2877   for (list = icon_view->priv->items; list; list = list->next)
2878     {
2879       GtkIconViewItem *item = list->data;
2880       GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
2881
2882       if (item->selected)
2883         (* func) (icon_view, path, data);
2884
2885       gtk_tree_path_free (path);
2886     }
2887 }
2888
2889 /**
2890  * gtk_icon_view_set_selection_mode:
2891  * @icon_view: A #GtkIconView.
2892  * @mode: The selection mode
2893  *
2894  * Sets the selection mode of the @icon_view.
2895  *
2896  * Since: 2.6
2897  **/
2898 void
2899 gtk_icon_view_set_selection_mode (GtkIconView      *icon_view,
2900                                   GtkSelectionMode  mode)
2901 {
2902   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
2903
2904   if (mode == icon_view->priv->selection_mode)
2905     return;
2906
2907   if (mode == GTK_SELECTION_NONE ||
2908       icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
2909     gtk_icon_view_unselect_all (icon_view);
2910
2911   icon_view->priv->selection_mode = mode;
2912
2913   g_object_notify (G_OBJECT (icon_view), "selection_mode");
2914 }
2915
2916 /**
2917  * gtk_icon_view_get_selection_mode:
2918  * @icon_view: A #GtkIconView.
2919  *
2920  * Gets the selection mode of the @icon_view.
2921  *
2922  * Return value: the current selection mode
2923  *
2924  * Since: 2.6
2925  **/
2926 GtkSelectionMode
2927 gtk_icon_view_get_selection_mode (GtkIconView *icon_view)
2928 {
2929   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE);
2930
2931   return icon_view->priv->selection_mode;
2932 }
2933
2934 /**
2935  * gtk_icon_view_set_model:
2936  * @icon_view: A #GtkIconView.
2937  * @model: The model.
2938  *
2939  * Sets the model for a #GtkIconView.
2940  * If the @icon_view already has a model set, it will remove
2941  * it before setting the new model.  If @model is %NULL, then
2942  * it will unset the old model.
2943  *
2944  * Since: 2.6
2945  **/
2946 void
2947 gtk_icon_view_set_model (GtkIconView *icon_view,
2948                          GtkTreeModel *model)
2949 {
2950   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
2951   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
2952
2953   if (icon_view->priv->model == model)
2954     return;
2955
2956   if (model)
2957     {
2958       GType column_type;
2959
2960       g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY);
2961
2962       if (icon_view->priv->pixbuf_column != -1)
2963         {
2964           column_type = gtk_tree_model_get_column_type (model,
2965                                                         icon_view->priv->pixbuf_column);
2966
2967           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
2968         }
2969
2970       if (icon_view->priv->text_column != -1)
2971         {
2972           column_type = gtk_tree_model_get_column_type (model,
2973                                                         icon_view->priv->text_column);
2974
2975           g_return_if_fail (column_type == G_TYPE_STRING);
2976         }
2977
2978       if (icon_view->priv->markup_column != -1)
2979         {
2980           column_type = gtk_tree_model_get_column_type (model,
2981                                                         icon_view->priv->markup_column);
2982
2983           g_return_if_fail (column_type == G_TYPE_STRING);
2984         }
2985
2986     }
2987
2988   if (icon_view->priv->model)
2989     {
2990       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
2991                                             gtk_icon_view_row_changed,
2992                                             icon_view);
2993       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
2994                                             gtk_icon_view_row_inserted,
2995                                             icon_view);
2996       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
2997                                             gtk_icon_view_row_deleted,
2998                                             icon_view);
2999       g_signal_handlers_disconnect_by_func (icon_view->priv->model,
3000                                             gtk_icon_view_rows_reordered,
3001                                             icon_view);
3002
3003       g_object_unref (icon_view->priv->model);
3004
3005       g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_free, NULL);
3006       g_list_free (icon_view->priv->items);
3007       icon_view->priv->items = NULL;
3008       icon_view->priv->anchor_item = NULL;
3009       icon_view->priv->cursor_item = NULL;
3010       icon_view->priv->last_single_clicked = NULL;
3011     }
3012
3013   icon_view->priv->model = model;
3014
3015   if (icon_view->priv->model)
3016     {
3017       g_object_ref (icon_view->priv->model);
3018       g_signal_connect (icon_view->priv->model,
3019                         "row_changed",
3020                         G_CALLBACK (gtk_icon_view_row_changed),
3021                         icon_view);
3022       g_signal_connect (icon_view->priv->model,
3023                         "row_inserted",
3024                         G_CALLBACK (gtk_icon_view_row_inserted),
3025                         icon_view);
3026       g_signal_connect (icon_view->priv->model,
3027                         "row_deleted",
3028                         G_CALLBACK (gtk_icon_view_row_deleted),
3029                         icon_view);
3030       g_signal_connect (icon_view->priv->model,
3031                         "rows_reordered",
3032                         G_CALLBACK (gtk_icon_view_rows_reordered),
3033                         icon_view);
3034
3035       gtk_icon_view_build_items (icon_view);
3036     }
3037
3038   gtk_icon_view_queue_layout (icon_view);
3039
3040   g_object_notify (G_OBJECT (icon_view), "model");
3041 }
3042
3043 /**
3044  * gtk_icon_view_get_model:
3045  * @icon_view: a #GtkIconView
3046  *
3047  * Returns the model the #GtkIconView is based on.  Returns %NULL if the
3048  * model is unset.
3049  *
3050  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
3051  *
3052  * Since: 2.6
3053  **/
3054 GtkTreeModel *
3055 gtk_icon_view_get_model (GtkIconView *icon_view)
3056 {
3057   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
3058
3059   return icon_view->priv->model;
3060 }
3061
3062 /**
3063  * gtk_icon_view_set_text_column:
3064  * @icon_view: A #GtkIconView.
3065  * @column: A column in the currently used model.
3066  *
3067  * Sets the column with text for @icon_view to be @column. The text
3068  * column must be of type #G_TYPE_STRING.
3069  *
3070  * Since: 2.6
3071  **/
3072 void
3073 gtk_icon_view_set_text_column (GtkIconView *icon_view,
3074                                gint          column)
3075 {
3076   if (column == icon_view->priv->text_column)
3077     return;
3078
3079   if (column == -1)
3080     icon_view->priv->text_column = -1;
3081   else
3082     {
3083       if (icon_view->priv->model != NULL)
3084         {
3085           GType column_type;
3086
3087           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3088
3089           g_return_if_fail (column_type == G_TYPE_STRING);
3090         }
3091
3092       icon_view->priv->text_column = column;
3093     }
3094
3095   gtk_icon_view_invalidate_sizes (icon_view);
3096   gtk_icon_view_queue_layout (icon_view);
3097
3098   g_object_notify (G_OBJECT (icon_view), "text_column");
3099 }
3100
3101 /**
3102  * gtk_icon_view_get_text_column:
3103  * @icon_view: A #GtkIconView.
3104  *
3105  * Returns the column with text for @icon_view.
3106  *
3107  * Returns: the text column, or -1 if it's unset.
3108  *
3109  * Since: 2.6
3110  */
3111 gint
3112 gtk_icon_view_get_text_column (GtkIconView  *icon_view)
3113 {
3114   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3115
3116   return icon_view->priv->text_column;
3117 }
3118
3119 /**
3120  * gtk_icon_view_set_markup_column:
3121  * @icon_view: A #GtkIconView.
3122  * @column: A column in the currently used model.
3123  *
3124  * Sets the column with markup information for @icon_view to be
3125  * @column. The markup column must be of type #G_TYPE_STRING.
3126  * If the markup column is set to something, it overrides
3127  * the text column set by gtk_icon_view_set_text_column().
3128  *
3129  * Since: 2.6
3130  **/
3131 void
3132 gtk_icon_view_set_markup_column (GtkIconView *icon_view,
3133                                  gint         column)
3134 {
3135   if (column == icon_view->priv->markup_column)
3136     return;
3137
3138   if (column == -1)
3139     icon_view->priv->markup_column = -1;
3140   else
3141     {
3142       if (icon_view->priv->model != NULL)
3143         {
3144           GType column_type;
3145
3146           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3147
3148           g_return_if_fail (column_type == G_TYPE_STRING);
3149         }
3150
3151       icon_view->priv->markup_column = column;
3152     }
3153
3154   gtk_icon_view_invalidate_sizes (icon_view);
3155   gtk_icon_view_queue_layout (icon_view);
3156
3157   g_object_notify (G_OBJECT (icon_view), "markup_column");
3158 }
3159
3160 /**
3161  * gtk_icon_view_get_markup_column:
3162  * @icon_view: A #GtkIconView.
3163  *
3164  * Returns the column with markup text for @icon_view.
3165  *
3166  * Returns: the markup column, or -1 if it's unset.
3167  *
3168  * Since: 2.6
3169  */
3170 gint
3171 gtk_icon_view_get_markup_column (GtkIconView  *icon_view)
3172 {
3173   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3174
3175   return icon_view->priv->markup_column;
3176 }
3177
3178 /**
3179  * gtk_icon_view_set_pixbuf_column:
3180  * @icon_view: A #GtkIconView.
3181  * @column: A column in the currently used model.
3182  *
3183  * Sets the column with pixbufs for @icon_view to be @column. The pixbuf
3184  * column must be of type #GDK_TYPE_PIXBUF
3185  *
3186  * Since: 2.6
3187  **/
3188 void
3189 gtk_icon_view_set_pixbuf_column (GtkIconView *icon_view,
3190                                  gint         column)
3191 {
3192   if (column == icon_view->priv->pixbuf_column)
3193     return;
3194
3195   if (column == -1)
3196     icon_view->priv->pixbuf_column = -1;
3197   else
3198     {
3199       if (icon_view->priv->model != NULL)
3200         {
3201           GType column_type;
3202
3203           column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
3204
3205           g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
3206         }
3207
3208       icon_view->priv->pixbuf_column = column;
3209     }
3210
3211   gtk_icon_view_invalidate_sizes (icon_view);
3212   gtk_icon_view_queue_layout (icon_view);
3213
3214   g_object_notify (G_OBJECT (icon_view), "pixbuf_column");
3215
3216 }
3217
3218 /**
3219  * gtk_icon_view_get_pixbuf_column:
3220  * @icon_view: A #GtkIconView.
3221  *
3222  * Returns the column with pixbufs for @icon_view.
3223  *
3224  * Returns: the pixbuf column, or -1 if it's unset.
3225  *
3226  * Since: 2.6
3227  */
3228 gint
3229 gtk_icon_view_get_pixbuf_column (GtkIconView  *icon_view)
3230 {
3231   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1);
3232
3233   return icon_view->priv->pixbuf_column;
3234 }
3235
3236 /**
3237  * gtk_icon_view_select_path:
3238  * @icon_view: A #GtkIconView.
3239  * @path: The #GtkTreePath to be selected.
3240  *
3241  * Selects the row at @path.
3242  *
3243  * Since: 2.6
3244  **/
3245 void
3246 gtk_icon_view_select_path (GtkIconView *icon_view,
3247                            GtkTreePath *path)
3248 {
3249   GtkIconViewItem *item;
3250
3251   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3252   g_return_if_fail (icon_view->priv->model != NULL);
3253   g_return_if_fail (path != NULL);
3254
3255   item = g_list_nth (icon_view->priv->items,
3256                      gtk_tree_path_get_indices(path)[0])->data;
3257
3258   if (!item)
3259     return;
3260
3261   gtk_icon_view_select_item (icon_view, item);
3262 }
3263
3264 /**
3265  * gtk_icon_view_unselect_path:
3266  * @icon_view: A #GtkIconView.
3267  * @path: The #GtkTreePath to be unselected.
3268  *
3269  * Unselects the row at @path.
3270  *
3271  * Since: 2.6
3272  **/
3273 void
3274 gtk_icon_view_unselect_path (GtkIconView *icon_view,
3275                              GtkTreePath *path)
3276 {
3277   GtkIconViewItem *item;
3278
3279   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3280   g_return_if_fail (icon_view->priv->model != NULL);
3281   g_return_if_fail (path != NULL);
3282
3283   item = g_list_nth (icon_view->priv->items,
3284                      gtk_tree_path_get_indices(path)[0])->data;
3285
3286   if (!item)
3287     return;
3288
3289   gtk_icon_view_unselect_item (icon_view, item);
3290 }
3291
3292 /**
3293  * gtk_icon_view_get_selected_items:
3294  * @icon_view: A #GtkIconView.
3295  *
3296  * Creates a list of paths of all selected items. Additionally, if you are
3297  * planning on modifying the model after calling this function, you may
3298  * want to convert the returned list into a list of #GtkTreeRowReference<!-- -->s.
3299  * To do this, you can use gtk_tree_row_reference_new().
3300  *
3301  * To free the return value, use:
3302  * <informalexample><programlisting>
3303  * g_list_foreach (list, gtk_tree_path_free, NULL);
3304  * g_list_free (list);
3305  * </programlisting></informalexample>
3306  *
3307  * Return value: A #GList containing a #GtkTreePath for each selected row.
3308  *
3309  * Since: 2.6
3310  **/
3311 GList *
3312 gtk_icon_view_get_selected_items (GtkIconView *icon_view)
3313 {
3314   GList *list;
3315   GList *selected = NULL;
3316
3317   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL);
3318
3319   for (list = icon_view->priv->items; list != NULL; list = list->next)
3320     {
3321       GtkIconViewItem *item = list->data;
3322
3323       if (item->selected)
3324         {
3325           GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1);
3326
3327           selected = g_list_prepend (selected, path);
3328         }
3329     }
3330
3331   return selected;
3332 }
3333
3334 /**
3335  * gtk_icon_view_select_all:
3336  * @icon_view: A #GtkIconView.
3337  *
3338  * Selects all the icons. @icon_view must has its selection mode set
3339  * to #GTK_SELECTION_MULTIPLE.
3340  *
3341  * Since: 2.6
3342  **/
3343 void
3344 gtk_icon_view_select_all (GtkIconView *icon_view)
3345 {
3346   GList *items;
3347   gboolean dirty = FALSE;
3348
3349   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3350
3351   if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
3352     return;
3353
3354   for (items = icon_view->priv->items; items; items = items->next)
3355     {
3356       GtkIconViewItem *item = items->data;
3357
3358       if (!item->selected)
3359         {
3360           dirty = TRUE;
3361           item->selected = TRUE;
3362           gtk_icon_view_queue_draw_item (icon_view, item);
3363         }
3364     }
3365
3366   if (dirty)
3367     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3368 }
3369
3370 /**
3371  * gtk_icon_view_unselect_all:
3372  * @icon_view: A #GtkIconView.
3373  *
3374  * Unselects all the icons.
3375  *
3376  * Since: 2.6
3377  **/
3378 void
3379 gtk_icon_view_unselect_all (GtkIconView *icon_view)
3380 {
3381   gboolean dirty = FALSE;
3382
3383   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3384
3385   if (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
3386     return;
3387
3388   dirty = gtk_icon_view_unselect_all_internal (icon_view);
3389
3390   if (dirty)
3391     g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
3392 }
3393
3394 /**
3395  * gtk_icon_view_path_is_selected:
3396  * @icon_view: A #GtkIconView.
3397  * @path: A #GtkTreePath to check selection on.
3398  *
3399  * Returns %TRUE if the icon pointed to by @path is currently
3400  * selected. If @icon does not point to a valid location, %FALSE is returned.
3401  *
3402  * Return value: %TRUE if @path is selected.
3403  *
3404  * Since: 2.6
3405  **/
3406 gboolean
3407 gtk_icon_view_path_is_selected (GtkIconView *icon_view,
3408                                 GtkTreePath *path)
3409 {
3410   GtkIconViewItem *item;
3411
3412   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE);
3413   g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
3414   g_return_val_if_fail (path != NULL, FALSE);
3415
3416   item = g_list_nth (icon_view->priv->items,
3417                      gtk_tree_path_get_indices(path)[0])->data;
3418
3419   if (!item)
3420     return FALSE;
3421
3422   return item->selected;
3423 }
3424
3425 /**
3426  * gtk_icon_view_item_activated:
3427  * @icon_view: A #GtkIconView
3428  * @path: The #GtkTreePath to be activated
3429  *
3430  * Activates the item determined by @path.
3431  *
3432  * Since: 2.6
3433  **/
3434 void
3435 gtk_icon_view_item_activated (GtkIconView      *icon_view,
3436                               GtkTreePath      *path)
3437 {
3438   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3439   g_return_if_fail (path != NULL);
3440
3441   g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path);
3442 }
3443
3444 /**
3445  * gtk_icon_view_set_orientation:
3446  * @icon_view: a #GtkIconView
3447  * @orientation: the relative position of texts and icons
3448  *
3449  * Sets the ::orientation property which determines whether the labels
3450  * are drawn beside the icons instead of below.
3451  *
3452  * Since: 2.6
3453  **/
3454 void
3455 gtk_icon_view_set_orientation (GtkIconView    *icon_view,
3456                                GtkOrientation  orientation)
3457 {
3458   g_return_if_fail (GTK_IS_ICON_VIEW (icon_view));
3459
3460   if (icon_view->priv->orientation != orientation)
3461     {
3462       icon_view->priv->orientation = orientation;
3463
3464       gtk_icon_view_invalidate_sizes (icon_view);
3465       gtk_icon_view_queue_layout (icon_view);
3466
3467       g_object_notify (G_OBJECT (icon_view), "orientation");
3468     }
3469 }
3470
3471 /**
3472  * gtk_icon_view_get_orientation:
3473  * @icon_view: a #GtkIconView
3474  *
3475  * Returns the value of the ::orientation property which determines
3476  * whether the labels are drawn beside the icons instead of below.
3477  *
3478  * Return value: the relative position of texts and icons
3479  *
3480  * Since: 2.6
3481  **/
3482 GtkOrientation
3483 gtk_icon_view_get_orientation (GtkIconView *icon_view)
3484 {
3485   g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view),
3486                         GTK_ORIENTATION_VERTICAL);
3487
3488   return icon_view->priv->orientation;
3489 }
3490
3491 /* Accessibility Support */
3492
3493 static gpointer accessible_parent_class;
3494 static gpointer accessible_item_parent_class;
3495 static GQuark accessible_private_data_quark = 0;
3496
3497 #define GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE      (gtk_icon_view_item_accessible_get_type ())
3498 #define GTK_ICON_VIEW_ITEM_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE, GtkIconViewItemAccessible))
3499 #define GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE))
3500
3501 static GType gtk_icon_view_item_accessible_get_type (void);
3502
3503 enum {
3504     ACTION_ACTIVATE,
3505     LAST_ACTION
3506 };
3507
3508 typedef struct
3509 {
3510   AtkObject parent;
3511
3512   GtkIconViewItem *item;
3513
3514   GtkWidget *widget;
3515
3516   AtkStateSet *state_set;
3517
3518   gchar *text;
3519
3520   GtkTextBuffer *text_buffer;
3521
3522   gchar *action_descriptions[LAST_ACTION];
3523   gchar *image_description;
3524   guint action_idle_handler;
3525 } GtkIconViewItemAccessible;
3526
3527 static const gchar *gtk_icon_view_item_accessible_action_names[] =
3528 {
3529   "activate",
3530   NULL
3531 };
3532
3533 static const gchar *gtk_icon_view_item_accessible_action_descriptions[] =
3534 {
3535   "Activate item",
3536   NULL
3537 };
3538 typedef struct _GtkIconViewItemAccessibleClass
3539 {
3540   AtkObjectClass parent_class;
3541
3542 } GtkIconViewItemAccessibleClass;
3543
3544 static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item);
3545
3546 static gboolean
3547 gtk_icon_view_item_accessible_idle_do_action (gpointer data)
3548 {
3549   GtkIconViewItemAccessible *item;
3550   GtkIconView *icon_view;
3551   GtkTreePath *path;
3552
3553   GDK_THREADS_ENTER ();
3554
3555   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (data);
3556   item->action_idle_handler = 0;
3557
3558   if (item->widget != NULL)
3559     {
3560       icon_view = GTK_ICON_VIEW (item->widget);
3561       path = gtk_tree_path_new_from_indices (item->item->index, -1);
3562       gtk_icon_view_item_activated (icon_view, path);
3563       gtk_tree_path_free (path);
3564     }
3565
3566   GDK_THREADS_LEAVE ();
3567
3568   return FALSE;
3569 }
3570
3571 static gboolean
3572 gtk_icon_view_item_accessible_action_do_action (AtkAction *action,
3573                                                 gint       i)
3574 {
3575   GtkIconViewItemAccessible *item;
3576   GtkIconView *icon_view;
3577
3578   if (i < 0 || i >= LAST_ACTION)
3579     return FALSE;
3580
3581   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3582
3583   if (!GTK_IS_ICON_VIEW (item->widget))
3584     return FALSE;
3585
3586   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3587     return FALSE;
3588
3589   icon_view = GTK_ICON_VIEW (item->widget);
3590
3591   switch (i)
3592     {
3593     case ACTION_ACTIVATE:
3594       if (!item->action_idle_handler)
3595         item->action_idle_handler = g_idle_add (gtk_icon_view_item_accessible_idle_do_action, item);
3596       break;
3597     default:
3598       g_assert_not_reached ();
3599       return FALSE;
3600
3601     }
3602   return TRUE;
3603 }
3604
3605 static gint
3606 gtk_icon_view_item_accessible_action_get_n_actions (AtkAction *action)
3607 {
3608         return LAST_ACTION;
3609 }
3610
3611 static const gchar *
3612 gtk_icon_view_item_accessible_action_get_description (AtkAction *action,
3613                                                       gint       i)
3614 {
3615   GtkIconViewItemAccessible *item;
3616
3617   if (i < 0 || i >= LAST_ACTION)
3618     return NULL;
3619
3620   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3621
3622   if (item->action_descriptions[i])
3623     return item->action_descriptions[i];
3624   else
3625     return gtk_icon_view_item_accessible_action_descriptions[i];
3626 }
3627
3628 static const gchar *
3629 gtk_icon_view_item_accessible_action_get_name (AtkAction *action,
3630                                                gint       i)
3631 {
3632   if (i < 0 || i >= LAST_ACTION)
3633     return NULL;
3634
3635   return gtk_icon_view_item_accessible_action_names[i];
3636 }
3637
3638 static gboolean
3639 gtk_icon_view_item_accessible_action_set_description (AtkAction   *action,
3640                                                       gint         i,
3641                                                       const gchar *description)
3642 {
3643   GtkIconViewItemAccessible *item;
3644
3645   if (i < 0 || i >= LAST_ACTION)
3646     return FALSE;
3647
3648   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action);
3649
3650   if (item->action_descriptions[i])
3651     g_free (item->action_descriptions[i]);
3652
3653   item->action_descriptions[i] = g_strdup (description);
3654
3655   return TRUE;
3656 }
3657
3658 static void
3659 atk_action_item_interface_init (AtkActionIface *iface)
3660 {
3661   iface->do_action = gtk_icon_view_item_accessible_action_do_action;
3662   iface->get_n_actions = gtk_icon_view_item_accessible_action_get_n_actions;
3663   iface->get_description = gtk_icon_view_item_accessible_action_get_description;
3664   iface->get_name = gtk_icon_view_item_accessible_action_get_name;
3665   iface->set_description = gtk_icon_view_item_accessible_action_set_description;
3666 }
3667
3668 static const gchar *
3669 gtk_icon_view_item_accessible_image_get_image_description (AtkImage *image)
3670 {
3671   GtkIconViewItemAccessible *item;
3672
3673   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
3674
3675   return item->image_description;
3676 }
3677
3678 static gboolean
3679 gtk_icon_view_item_accessible_image_set_image_description (AtkImage    *image,
3680                                                            const gchar *description)
3681 {
3682   GtkIconViewItemAccessible *item;
3683
3684   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
3685
3686   g_free (item->image_description);
3687   item->image_description = g_strdup (item->image_description);
3688
3689   return TRUE;
3690 }
3691
3692 static void
3693 gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image,
3694                                                     gint     *width,
3695                                                     gint     *height)
3696 {
3697   GtkIconViewItemAccessible *item;
3698
3699   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
3700
3701   if (!GTK_IS_ICON_VIEW (item->widget))
3702     return;
3703
3704   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3705     return;
3706
3707   *width = item->item->pixbuf_width;
3708   *height = item->item->pixbuf_height;
3709 }
3710
3711 static void
3712 gtk_icon_view_item_accessible_image_get_image_position (AtkImage    *image,
3713                                                         gint        *x,
3714                                                         gint        *y,
3715                                                         AtkCoordType coord_type)
3716 {
3717   GtkIconViewItemAccessible *item;
3718
3719   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image);
3720
3721   if (!GTK_IS_ICON_VIEW (item->widget))
3722     return;
3723
3724   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3725     return;
3726
3727   atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
3728   *x+= item->item->pixbuf_x - item->item->x;
3729   *y+= item->item->pixbuf_y - item->item->y;
3730 }
3731
3732 static void
3733 atk_image_item_interface_init (AtkImageIface *iface)
3734 {
3735   iface->get_image_description = gtk_icon_view_item_accessible_image_get_image_description;
3736   iface->set_image_description = gtk_icon_view_item_accessible_image_set_image_description;
3737   iface->get_image_size = gtk_icon_view_item_accessible_image_get_image_size;
3738   iface->get_image_position = gtk_icon_view_item_accessible_image_get_image_position;
3739 }
3740
3741 static gchar *
3742 gtk_icon_view_item_accessible_text_get_text (AtkText *text,
3743                                              gint     start_pos,
3744                                              gint     end_pos)
3745 {
3746   GtkIconViewItemAccessible *item;
3747   GtkTextIter start, end;
3748   GtkTextBuffer *buffer;
3749
3750   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
3751
3752   if (!GTK_IS_ICON_VIEW (item->widget))
3753     return NULL;
3754
3755   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3756     return NULL;
3757
3758   buffer = item->text_buffer;
3759   gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
3760   if (end_pos < 0)
3761     gtk_text_buffer_get_end_iter (buffer, &end);
3762   else
3763     gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
3764
3765   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
3766 }
3767
3768 static gunichar
3769 gtk_icon_view_item_accessible_text_get_character_at_offset (AtkText *text,
3770                                                             gint     offset)
3771 {
3772   GtkIconViewItemAccessible *item;
3773   GtkTextIter start, end;
3774   GtkTextBuffer *buffer;
3775   gchar *string;
3776   gunichar unichar;
3777
3778   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
3779
3780   if (!GTK_IS_ICON_VIEW (item->widget))
3781     return '\0';
3782
3783   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3784     return '\0';
3785
3786   buffer = item->text_buffer;
3787   if (offset >= gtk_text_buffer_get_char_count (buffer))
3788     return '\0';
3789
3790   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
3791   end = start;
3792   gtk_text_iter_forward_char (&end);
3793   string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
3794   unichar = g_utf8_get_char (string);
3795   g_free(string);
3796
3797   return unichar;
3798 }
3799
3800 static void
3801 get_pango_text_offsets (PangoLayout     *layout,
3802                         GtkTextBuffer   *buffer,
3803                         gint             function,
3804                         AtkTextBoundary  boundary_type,
3805                         gint             offset,
3806                         gint            *start_offset,
3807                         gint            *end_offset,
3808                         GtkTextIter     *start_iter,
3809                         GtkTextIter     *end_iter)
3810 {
3811   PangoLayoutIter *iter;
3812   PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL;
3813   gint index, start_index, end_index;
3814   const gchar *text;
3815   gboolean found = FALSE;
3816
3817   text = pango_layout_get_text (layout);
3818   index = g_utf8_offset_to_pointer (text, offset) - text;
3819   iter = pango_layout_get_iter (layout);
3820   do
3821     {
3822       line = pango_layout_iter_get_line (iter);
3823       start_index = line->start_index;
3824       end_index = start_index + line->length;
3825
3826       if (index >= start_index && index <= end_index)
3827         {
3828           /*
3829            * Found line for offset
3830            */
3831           switch (function)
3832             {
3833             case 0:
3834                   /*
3835                    * We want the previous line
3836                    */
3837               if (prev_line)
3838                 {
3839                   switch (boundary_type)
3840                     {
3841                     case ATK_TEXT_BOUNDARY_LINE_START:
3842                       end_index = start_index;
3843                       start_index = prev_line->start_index;
3844                       break;
3845                     case ATK_TEXT_BOUNDARY_LINE_END:
3846                       if (prev_prev_line)
3847                         start_index = prev_prev_line->start_index +
3848                                   prev_prev_line->length;
3849                       end_index = prev_line->start_index + prev_line->length;
3850                       break;
3851                     default:
3852                       g_assert_not_reached();
3853                     }
3854                 }
3855               else
3856                 start_index = end_index = 0;
3857               break;
3858             case 1:
3859               switch (boundary_type)
3860                 {
3861                 case ATK_TEXT_BOUNDARY_LINE_START:
3862                   if (pango_layout_iter_next_line (iter))
3863                     end_index = pango_layout_iter_get_line (iter)->start_index;
3864                   break;
3865                 case ATK_TEXT_BOUNDARY_LINE_END:
3866                   if (prev_line)
3867                     start_index = prev_line->start_index +
3868                                   prev_line->length;
3869                   break;
3870                 default:
3871                   g_assert_not_reached();
3872                 }
3873               break;
3874             case 2:
3875                /*
3876                 * We want the next line
3877                 */
3878               if (pango_layout_iter_next_line (iter))
3879                 {
3880                   line = pango_layout_iter_get_line (iter);
3881                   switch (boundary_type)
3882                     {
3883                     case ATK_TEXT_BOUNDARY_LINE_START:
3884                       start_index = line->start_index;
3885                       if (pango_layout_iter_next_line (iter))
3886                         end_index = pango_layout_iter_get_line (iter)->start_index;
3887                       else
3888                         end_index = start_index + line->length;
3889                       break;
3890                     case ATK_TEXT_BOUNDARY_LINE_END:
3891                       start_index = end_index;
3892                       end_index = line->start_index + line->length;
3893                       break;
3894                     default:
3895                       g_assert_not_reached();
3896                     }
3897                 }
3898               else
3899                 start_index = end_index;
3900               break;
3901             }
3902           found = TRUE;
3903           break;
3904         }
3905       prev_prev_line = prev_line;
3906       prev_line = line;
3907     }
3908   while (pango_layout_iter_next_line (iter));
3909
3910   if (!found)
3911     {
3912       start_index = prev_line->start_index + prev_line->length;
3913       end_index = start_index;
3914     }
3915   pango_layout_iter_free (iter);
3916   *start_offset = g_utf8_pointer_to_offset (text, text + start_index);
3917   *end_offset = g_utf8_pointer_to_offset (text, text + end_index);
3918
3919   gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset);
3920   gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset);
3921 }
3922
3923 static gchar*
3924 gtk_icon_view_item_accessible_text_get_text_before_offset (AtkText         *text,
3925                                                            gint            offset,
3926                                                            AtkTextBoundary boundary_type,
3927                                                            gint            *start_offset,
3928                                                            gint            *end_offset)
3929 {
3930   GtkIconViewItemAccessible *item;
3931   GtkTextIter start, end;
3932   GtkTextBuffer *buffer;
3933   GtkIconView *icon_view;
3934
3935   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
3936
3937   if (!GTK_IS_ICON_VIEW (item->widget))
3938     return NULL;
3939
3940   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
3941     return NULL;
3942
3943   buffer = item->text_buffer;
3944
3945   if (!gtk_text_buffer_get_char_count (buffer))
3946     {
3947       *start_offset = 0;
3948       *end_offset = 0;
3949       return g_strdup ("");
3950     }
3951   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
3952
3953   end = start;
3954
3955   switch (boundary_type)
3956     {
3957     case ATK_TEXT_BOUNDARY_CHAR:
3958       gtk_text_iter_backward_char(&start);
3959       break;
3960     case ATK_TEXT_BOUNDARY_WORD_START:
3961       if (!gtk_text_iter_starts_word (&start))
3962         gtk_text_iter_backward_word_start (&start);
3963       end = start;
3964       gtk_text_iter_backward_word_start(&start);
3965       break;
3966     case ATK_TEXT_BOUNDARY_WORD_END:
3967       if (gtk_text_iter_inside_word (&start) &&
3968           !gtk_text_iter_starts_word (&start))
3969         gtk_text_iter_backward_word_start (&start);
3970       while (!gtk_text_iter_ends_word (&start))
3971         {
3972           if (!gtk_text_iter_backward_char (&start))
3973             break;
3974         }
3975       end = start;
3976       gtk_text_iter_backward_word_start(&start);
3977       while (!gtk_text_iter_ends_word (&start))
3978         {
3979           if (!gtk_text_iter_backward_char (&start))
3980             break;
3981         }
3982       break;
3983     case ATK_TEXT_BOUNDARY_SENTENCE_START:
3984       if (!gtk_text_iter_starts_sentence (&start))
3985         gtk_text_iter_backward_sentence_start (&start);
3986       end = start;
3987       gtk_text_iter_backward_sentence_start (&start);
3988       break;
3989     case ATK_TEXT_BOUNDARY_SENTENCE_END:
3990       if (gtk_text_iter_inside_sentence (&start) &&
3991           !gtk_text_iter_starts_sentence (&start))
3992         gtk_text_iter_backward_sentence_start (&start);
3993       while (!gtk_text_iter_ends_sentence (&start))
3994         {
3995           if (!gtk_text_iter_backward_char (&start))
3996             break;
3997         }
3998       end = start;
3999       gtk_text_iter_backward_sentence_start (&start);
4000       while (!gtk_text_iter_ends_sentence (&start))
4001         {
4002           if (!gtk_text_iter_backward_char (&start))
4003             break;
4004         }
4005       break;
4006    case ATK_TEXT_BOUNDARY_LINE_START:
4007    case ATK_TEXT_BOUNDARY_LINE_END:
4008       icon_view = GTK_ICON_VIEW (item->widget);
4009       gtk_icon_view_update_item_text (icon_view, item->item);
4010       get_pango_text_offsets (icon_view->priv->layout,
4011                               buffer,
4012                               0,
4013                               boundary_type,
4014                               offset,
4015                               start_offset,
4016                               end_offset,
4017                               &start,
4018                               &end);
4019       break;
4020     }
4021
4022   *start_offset = gtk_text_iter_get_offset (&start);
4023   *end_offset = gtk_text_iter_get_offset (&end);
4024
4025   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4026 }
4027
4028 static gchar*
4029 gtk_icon_view_item_accessible_text_get_text_at_offset (AtkText         *text,
4030                                                        gint            offset,
4031                                                        AtkTextBoundary boundary_type,
4032                                                        gint            *start_offset,
4033                                                        gint            *end_offset)
4034 {
4035   GtkIconViewItemAccessible *item;
4036   GtkTextIter start, end;
4037   GtkTextBuffer *buffer;
4038   GtkIconView *icon_view;
4039
4040   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4041
4042   if (!GTK_IS_ICON_VIEW (item->widget))
4043     return NULL;
4044
4045   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4046     return NULL;
4047
4048   buffer = item->text_buffer;
4049
4050   if (!gtk_text_buffer_get_char_count (buffer))
4051     {
4052       *start_offset = 0;
4053       *end_offset = 0;
4054       return g_strdup ("");
4055     }
4056   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4057
4058   end = start;
4059
4060   switch (boundary_type)
4061     {
4062     case ATK_TEXT_BOUNDARY_CHAR:
4063       gtk_text_iter_forward_char (&end);
4064       break;
4065     case ATK_TEXT_BOUNDARY_WORD_START:
4066       if (!gtk_text_iter_starts_word (&start))
4067         gtk_text_iter_backward_word_start (&start);
4068       if (gtk_text_iter_inside_word (&end))
4069         gtk_text_iter_forward_word_end (&end);
4070       while (!gtk_text_iter_starts_word (&end))
4071         {
4072           if (!gtk_text_iter_forward_char (&end))
4073             break;
4074         }
4075       break;
4076     case ATK_TEXT_BOUNDARY_WORD_END:
4077       if (gtk_text_iter_inside_word (&start) &&
4078           !gtk_text_iter_starts_word (&start))
4079         gtk_text_iter_backward_word_start (&start);
4080       while (!gtk_text_iter_ends_word (&start))
4081         {
4082           if (!gtk_text_iter_backward_char (&start))
4083             break;
4084         }
4085       gtk_text_iter_forward_word_end (&end);
4086       break;
4087     case ATK_TEXT_BOUNDARY_SENTENCE_START:
4088       if (!gtk_text_iter_starts_sentence (&start))
4089         gtk_text_iter_backward_sentence_start (&start);
4090       if (gtk_text_iter_inside_sentence (&end))
4091         gtk_text_iter_forward_sentence_end (&end);
4092       while (!gtk_text_iter_starts_sentence (&end))
4093         {
4094           if (!gtk_text_iter_forward_char (&end))
4095             break;
4096         }
4097       break;
4098     case ATK_TEXT_BOUNDARY_SENTENCE_END:
4099       if (gtk_text_iter_inside_sentence (&start) &&
4100           !gtk_text_iter_starts_sentence (&start))
4101         gtk_text_iter_backward_sentence_start (&start);
4102       while (!gtk_text_iter_ends_sentence (&start))
4103         {
4104           if (!gtk_text_iter_backward_char (&start))
4105             break;
4106         }
4107       gtk_text_iter_forward_sentence_end (&end);
4108       break;
4109    case ATK_TEXT_BOUNDARY_LINE_START:
4110    case ATK_TEXT_BOUNDARY_LINE_END:
4111       icon_view = GTK_ICON_VIEW (item->widget);
4112       gtk_icon_view_update_item_text (icon_view, item->item);
4113       get_pango_text_offsets (icon_view->priv->layout,
4114                               buffer,
4115                               1,
4116                               boundary_type,
4117                               offset,
4118                               start_offset,
4119                               end_offset,
4120                               &start,
4121                               &end);
4122       break;
4123     }
4124
4125
4126   *start_offset = gtk_text_iter_get_offset (&start);
4127   *end_offset = gtk_text_iter_get_offset (&end);
4128
4129   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4130 }
4131
4132 static gchar*
4133 gtk_icon_view_item_accessible_text_get_text_after_offset (AtkText         *text,
4134                                                           gint            offset,
4135                                                           AtkTextBoundary boundary_type,
4136                                                           gint            *start_offset,
4137                                                           gint            *end_offset)
4138 {
4139   GtkIconViewItemAccessible *item;
4140   GtkTextIter start, end;
4141   GtkTextBuffer *buffer;
4142   GtkIconView *icon_view;
4143
4144   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4145
4146   if (!GTK_IS_ICON_VIEW (item->widget))
4147     return NULL;
4148
4149   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4150     return NULL;
4151
4152   buffer = item->text_buffer;
4153
4154   if (!gtk_text_buffer_get_char_count (buffer))
4155     {
4156       *start_offset = 0;
4157       *end_offset = 0;
4158       return g_strdup ("");
4159     }
4160   gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
4161
4162   end = start;
4163
4164   switch (boundary_type)
4165     {
4166     case ATK_TEXT_BOUNDARY_CHAR:
4167       gtk_text_iter_forward_char(&start);
4168       gtk_text_iter_forward_chars(&end, 2);
4169       break;
4170     case ATK_TEXT_BOUNDARY_WORD_START:
4171       if (gtk_text_iter_inside_word (&end))
4172         gtk_text_iter_forward_word_end (&end);
4173       while (!gtk_text_iter_starts_word (&end))
4174         {
4175           if (!gtk_text_iter_forward_char (&end))
4176             break;
4177         }
4178       start = end;
4179       if (!gtk_text_iter_is_end (&end))
4180         {
4181           gtk_text_iter_forward_word_end (&end);
4182           while (!gtk_text_iter_starts_word (&end))
4183             {
4184               if (!gtk_text_iter_forward_char (&end))
4185                 break;
4186             }
4187         }
4188       break;
4189     case ATK_TEXT_BOUNDARY_WORD_END:
4190       gtk_text_iter_forward_word_end (&end);
4191       start = end;
4192       if (!gtk_text_iter_is_end (&end))
4193         gtk_text_iter_forward_word_end (&end);
4194       break;
4195     case ATK_TEXT_BOUNDARY_SENTENCE_START:
4196       if (gtk_text_iter_inside_sentence (&end))
4197         gtk_text_iter_forward_sentence_end (&end);
4198       while (!gtk_text_iter_starts_sentence (&end))
4199         {
4200           if (!gtk_text_iter_forward_char (&end))
4201             break;
4202         }
4203       start = end;
4204       if (!gtk_text_iter_is_end (&end))
4205         {
4206           gtk_text_iter_forward_sentence_end (&end);
4207           while (!gtk_text_iter_starts_sentence (&end))
4208             {
4209               if (!gtk_text_iter_forward_char (&end))
4210                 break;
4211             }
4212         }
4213       break;
4214     case ATK_TEXT_BOUNDARY_SENTENCE_END:
4215       gtk_text_iter_forward_sentence_end (&end);
4216       start = end;
4217       if (!gtk_text_iter_is_end (&end))
4218         gtk_text_iter_forward_sentence_end (&end);
4219       break;
4220    case ATK_TEXT_BOUNDARY_LINE_START:
4221    case ATK_TEXT_BOUNDARY_LINE_END:
4222       icon_view = GTK_ICON_VIEW (item->widget);
4223       gtk_icon_view_update_item_text (icon_view, item->item);
4224       get_pango_text_offsets (icon_view->priv->layout,
4225                               buffer,
4226                               2,
4227                               boundary_type,
4228                               offset,
4229                               start_offset,
4230                               end_offset,
4231                               &start,
4232                               &end);
4233       break;
4234     }
4235   *start_offset = gtk_text_iter_get_offset (&start);
4236   *end_offset = gtk_text_iter_get_offset (&end);
4237
4238   return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4239 }
4240
4241 static gint
4242 gtk_icon_view_item_accessible_text_get_character_count (AtkText *text)
4243 {
4244   GtkIconViewItemAccessible *item;
4245
4246   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4247
4248   if (!GTK_IS_ICON_VIEW (item->widget))
4249     return 0;
4250
4251   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4252     return 0;
4253
4254   return gtk_text_buffer_get_char_count (item->text_buffer);
4255 }
4256
4257 static void
4258 gtk_icon_view_item_accessible_text_get_character_extents (AtkText      *text,
4259                                                           gint         offset,
4260                                                           gint         *x,
4261                                                           gint         *y,
4262                                                           gint         *width,
4263                                                           gint         *height,
4264                                                           AtkCoordType coord_type)
4265 {
4266   GtkIconViewItemAccessible *item;
4267   GtkIconView *icon_view;
4268   PangoRectangle char_rect;
4269   const gchar *item_text;
4270   gint index;
4271
4272   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4273
4274   if (!GTK_IS_ICON_VIEW (item->widget))
4275     return;
4276
4277   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4278     return;
4279
4280   icon_view = GTK_ICON_VIEW (item->widget);
4281   gtk_icon_view_update_item_text (icon_view, item->item);
4282   item_text = pango_layout_get_text (icon_view->priv->layout);
4283   index = g_utf8_offset_to_pointer (item_text, offset) - item_text;
4284   pango_layout_index_to_pos (icon_view->priv->layout, index, &char_rect);
4285
4286   atk_component_get_position (ATK_COMPONENT (text), x, y, coord_type);
4287   *x += item->item->layout_x - item->item->x + char_rect.x / PANGO_SCALE;
4288   /* Look at gtk_icon_view_paint_item() to see where the text is. */
4289   *x -=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH) - item->item->width) / 2,
4290   *y += item->item->layout_y - item->item->y + char_rect.y / PANGO_SCALE;
4291   *width = char_rect.width / PANGO_SCALE;
4292   *height = char_rect.height / PANGO_SCALE;
4293 }
4294
4295 static gint
4296 gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText      *text,
4297                                                         gint          x,
4298                                                         gint          y,
4299                                                         AtkCoordType coord_type)
4300 {
4301   GtkIconViewItemAccessible *item;
4302   GtkIconView *icon_view;
4303   const gchar *item_text;
4304   gint index;
4305   gint offset;
4306   gint l_x, l_y;
4307
4308   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text);
4309
4310   if (!GTK_IS_ICON_VIEW (item->widget))
4311     return -1;
4312
4313   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4314     return -1;
4315
4316   icon_view = GTK_ICON_VIEW (item->widget);
4317   gtk_icon_view_update_item_text (icon_view, item->item);
4318   atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type);
4319   x -= l_x + item->item->layout_x - item->item->x;
4320   x +=  ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, MINIMUM_ICON_ITEM_WIDTH) - item->item->width) / 2,
4321   y -= l_y + item->item->layout_y - item->item->y;
4322   item_text = pango_layout_get_text (icon_view->priv->layout);
4323   if (!pango_layout_xy_to_index (icon_view->priv->layout,
4324                                 x * PANGO_SCALE,
4325                                 y * PANGO_SCALE,
4326                                 &index, NULL))
4327     {
4328       if (x < 0 || y < 0)
4329         index = 0;
4330       else
4331         index = -1;
4332     }
4333   if (index == -1)
4334     offset = g_utf8_strlen (item_text, -1);
4335   else
4336     offset = g_utf8_pointer_to_offset (item_text, item_text + index);
4337
4338   return offset;
4339 }
4340
4341 static void
4342 atk_text_item_interface_init (AtkTextIface *iface)
4343 {
4344   iface->get_text = gtk_icon_view_item_accessible_text_get_text;
4345   iface->get_character_at_offset = gtk_icon_view_item_accessible_text_get_character_at_offset;
4346   iface->get_text_before_offset = gtk_icon_view_item_accessible_text_get_text_before_offset;
4347   iface->get_text_at_offset = gtk_icon_view_item_accessible_text_get_text_at_offset;
4348   iface->get_text_after_offset = gtk_icon_view_item_accessible_text_get_text_after_offset;
4349   iface->get_character_count = gtk_icon_view_item_accessible_text_get_character_count;
4350   iface->get_character_extents = gtk_icon_view_item_accessible_text_get_character_extents;
4351   iface->get_offset_at_point = gtk_icon_view_item_accessible_text_get_offset_at_point;
4352 }
4353
4354 static void
4355 gtk_icon_view_item_accessible_get_extents (AtkComponent *component,
4356                                            gint         *x,
4357                                            gint         *y,
4358                                            gint         *width,
4359                                            gint         *height,
4360                                            AtkCoordType  coord_type)
4361 {
4362   GtkIconViewItemAccessible *item;
4363   AtkObject *parent_obj;
4364   gint l_x, l_y;
4365
4366   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component));
4367
4368   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
4369   if (!GTK_IS_WIDGET (item->widget))
4370     return;
4371
4372   if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT))
4373     return;
4374
4375   *width = item->item->width;
4376   *height = item->item->height;
4377   if (gtk_icon_view_item_accessible_is_showing (item))
4378     {
4379       parent_obj = gtk_widget_get_accessible (item->widget);
4380       atk_component_get_position (ATK_COMPONENT (parent_obj), &l_x, &l_y, coord_type);
4381       *x = l_x + item->item->x;
4382       *y = l_y + item->item->y;
4383     }
4384   else
4385     {
4386       *x = G_MININT;
4387       *y = G_MININT;
4388     }
4389 }
4390
4391 static gboolean
4392 gtk_icon_view_item_accessible_grab_focus (AtkComponent *component)
4393 {
4394   GtkIconViewItemAccessible *item;
4395   GtkWidget *toplevel;
4396
4397   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component), FALSE);
4398
4399   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component);
4400   if (!GTK_IS_WIDGET (item->widget))
4401     return FALSE;
4402
4403   gtk_widget_grab_focus (item->widget);
4404   gtk_icon_view_set_cursor_item (GTK_ICON_VIEW (item->widget), item->item);
4405   toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget));
4406   if (GTK_WIDGET_TOPLEVEL (toplevel))
4407     gtk_window_present (GTK_WINDOW (toplevel));
4408
4409   return TRUE;
4410 }
4411
4412 static void
4413 atk_component_item_interface_init (AtkComponentIface *iface)
4414 {
4415   iface->get_extents = gtk_icon_view_item_accessible_get_extents;
4416   iface->grab_focus = gtk_icon_view_item_accessible_grab_focus;
4417 }
4418
4419 static gboolean
4420 gtk_icon_view_item_accessible_add_state (GtkIconViewItemAccessible *item,
4421                                          AtkStateType               state_type,
4422                                          gboolean                   emit_signal)
4423 {
4424   gboolean rc;
4425
4426   rc = atk_state_set_add_state (item->state_set, state_type);
4427   /*
4428    * The signal should only be generated if the value changed,
4429    * not when the item is set up.  So states that are set
4430    * initially should pass FALSE as the emit_signal argument.
4431    */
4432
4433   if (emit_signal)
4434     {
4435       atk_object_notify_state_change (ATK_OBJECT (item), state_type, TRUE);
4436       /* If state_type is ATK_STATE_VISIBLE, additional notification */
4437       if (state_type == ATK_STATE_VISIBLE)
4438         g_signal_emit_by_name (item, "visible_data_changed");
4439     }
4440
4441   return rc;
4442 }
4443
4444 static gboolean
4445 gtk_icon_view_item_accessible_remove_state (GtkIconViewItemAccessible *item,
4446                                             AtkStateType               state_type,
4447                                             gboolean                   emit_signal)
4448 {
4449   if (atk_state_set_contains_state (item->state_set, state_type))
4450     {
4451       gboolean rc;
4452
4453       rc = atk_state_set_remove_state (item->state_set, state_type);
4454       /*
4455        * The signal should only be generated if the value changed,
4456        * not when the item is set up.  So states that are set
4457        * initially should pass FALSE as the emit_signal argument.
4458        */
4459
4460       if (emit_signal)
4461         {
4462           atk_object_notify_state_change (ATK_OBJECT (item), state_type, FALSE);
4463           /* If state_type is ATK_STATE_VISIBLE, additional notification */
4464           if (state_type == ATK_STATE_VISIBLE)
4465             g_signal_emit_by_name (item, "visible_data_changed");
4466         }
4467
4468       return rc;
4469     }
4470   else
4471     return FALSE;
4472 }
4473
4474 static gboolean
4475 gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item)
4476 {
4477   GtkIconView *icon_view;
4478   GdkRectangle visible_rect;
4479   gboolean is_showing;
4480
4481   /*
4482    * An item is considered "SHOWING" if any part of the item is in the
4483    * visible rectangle.
4484    */
4485
4486   if (!GTK_IS_ICON_VIEW (item->widget))
4487     return FALSE;
4488
4489   if (item->item == NULL)
4490     return FALSE;
4491
4492   icon_view = GTK_ICON_VIEW (item->widget);
4493   visible_rect.x = 0;
4494   if (icon_view->priv->hadjustment)
4495     visible_rect.x += icon_view->priv->hadjustment->value;
4496   visible_rect.y = 0;
4497   if (icon_view->priv->hadjustment)
4498     visible_rect.y += icon_view->priv->vadjustment->value;
4499   visible_rect.width = item->widget->allocation.width;
4500   visible_rect.height = item->widget->allocation.height;
4501
4502   if (((item->item->x + item->item->width) < visible_rect.x) ||
4503      ((item->item->y + item->item->height) < (visible_rect.y)) ||
4504      (item->item->x > (visible_rect.x + visible_rect.width)) ||
4505      (item->item->y > (visible_rect.y + visible_rect.height)))
4506     is_showing =  FALSE;
4507   else
4508     is_showing = TRUE;
4509
4510   return is_showing;
4511 }
4512
4513 static gboolean
4514 gtk_icon_view_item_accessible_set_visibility (GtkIconViewItemAccessible *item,
4515                                               gboolean                   emit_signal)
4516 {
4517   if (gtk_icon_view_item_accessible_is_showing (item))
4518     return gtk_icon_view_item_accessible_add_state (item, ATK_STATE_SHOWING,
4519                                                     emit_signal);
4520   else
4521     return gtk_icon_view_item_accessible_remove_state (item, ATK_STATE_SHOWING,
4522                                                        emit_signal);
4523 }
4524
4525 static void
4526 gtk_icon_view_item_accessible_object_init (GtkIconViewItemAccessible *item)
4527 {
4528   gint i;
4529
4530   item->state_set = atk_state_set_new ();
4531
4532   atk_state_set_add_state (item->state_set, ATK_STATE_ENABLED);
4533   atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSABLE);
4534   atk_state_set_add_state (item->state_set, ATK_STATE_SENSITIVE);
4535   atk_state_set_add_state (item->state_set, ATK_STATE_SELECTABLE);
4536   atk_state_set_add_state (item->state_set, ATK_STATE_VISIBLE);
4537
4538   for (i = 0; i < LAST_ACTION; i++)
4539     item->action_descriptions[i] = NULL;
4540
4541   item->image_description = NULL;
4542
4543   item->action_idle_handler = 0;
4544 }
4545
4546 static void
4547 gtk_icon_view_item_accessible_finalize (GObject *object)
4548 {
4549   GtkIconViewItemAccessible *item;
4550   gint i;
4551
4552   g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (object));
4553
4554   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (object);
4555
4556   if (item->widget)
4557     g_object_remove_weak_pointer (G_OBJECT (item->widget), (gpointer) &item->widget);
4558
4559   if (item->state_set)
4560     g_object_unref (item->state_set);
4561
4562   if (item->text_buffer)
4563      g_object_unref (item->text_buffer);
4564
4565   for (i = 0; i < LAST_ACTION; i++)
4566     g_free (item->action_descriptions[i]);
4567
4568   g_free (item->image_description);
4569
4570   if (item->action_idle_handler)
4571     {
4572       g_source_remove (item->action_idle_handler);
4573       item->action_idle_handler = 0;
4574     }
4575
4576   G_OBJECT_CLASS (accessible_item_parent_class)->finalize (object);
4577 }
4578
4579 static G_CONST_RETURN gchar*
4580 gtk_icon_view_item_accessible_get_name (AtkObject *obj)
4581 {
4582   if (obj->name)
4583     return obj->name;
4584   else
4585     {
4586       GtkIconViewItemAccessible *item;
4587       GtkTextIter start_iter;
4588       GtkTextIter end_iter;
4589
4590       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4591
4592       gtk_text_buffer_get_start_iter (item->text_buffer, &start_iter);
4593       gtk_text_buffer_get_end_iter (item->text_buffer, &end_iter);
4594
4595       return gtk_text_buffer_get_text (item->text_buffer, &start_iter, &end_iter, FALSE);
4596     }
4597 }
4598
4599 static AtkObject*
4600 gtk_icon_view_item_accessible_get_parent (AtkObject *obj)
4601 {
4602   GtkIconViewItemAccessible *item;
4603
4604   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), NULL);
4605   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4606
4607   if (item->widget)
4608     return gtk_widget_get_accessible (item->widget);
4609   else
4610     return NULL;
4611 }
4612
4613 static gint
4614 gtk_icon_view_item_accessible_get_index_in_parent (AtkObject *obj)
4615 {
4616   GtkIconViewItemAccessible *item;
4617
4618   g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), 0);
4619   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4620
4621   return item->item->index;
4622 }
4623
4624 static AtkStateSet *
4625 gtk_icon_view_item_accessible_ref_state_set (AtkObject *obj)
4626 {
4627   GtkIconViewItemAccessible *item;
4628   GtkIconView *icon_view;
4629
4630   item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4631   g_return_val_if_fail (item->state_set, NULL);
4632
4633   if (!item->widget)
4634     return NULL;
4635
4636   icon_view = GTK_ICON_VIEW (item->widget);
4637   if (icon_view->priv->cursor_item == item->item)
4638     atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSED);
4639   else
4640     atk_state_set_remove_state (item->state_set, ATK_STATE_FOCUSED);
4641
4642   return g_object_ref (item->state_set);
4643 }
4644
4645 static void
4646 gtk_icon_view_item_accessible_class_init (AtkObjectClass *klass)
4647 {
4648   GObjectClass *gobject_class;
4649
4650   accessible_item_parent_class = g_type_class_peek_parent (klass);
4651
4652   gobject_class = (GObjectClass *)klass;
4653
4654   gobject_class->finalize = gtk_icon_view_item_accessible_finalize;
4655
4656   klass->get_index_in_parent = gtk_icon_view_item_accessible_get_index_in_parent;
4657   klass->get_name = gtk_icon_view_item_accessible_get_name;
4658   klass->get_parent = gtk_icon_view_item_accessible_get_parent;
4659   klass->ref_state_set = gtk_icon_view_item_accessible_ref_state_set;
4660 }
4661
4662 static GType
4663 gtk_icon_view_item_accessible_get_type (void)
4664 {
4665   static GType type = 0;
4666
4667   if (!type)
4668     {
4669       static const GTypeInfo tinfo =
4670       {
4671         sizeof (GtkIconViewItemAccessibleClass),
4672         (GBaseInitFunc) NULL, /* base init */
4673         (GBaseFinalizeFunc) NULL, /* base finalize */
4674         (GClassInitFunc) gtk_icon_view_item_accessible_class_init, /* class init */
4675         (GClassFinalizeFunc) NULL, /* class finalize */
4676         NULL, /* class data */
4677         sizeof (GtkIconViewItemAccessible), /* instance size */
4678         0, /* nb preallocs */
4679         (GInstanceInitFunc) gtk_icon_view_item_accessible_object_init, /* instance init */
4680         NULL /* value table */
4681       };
4682
4683       static const GInterfaceInfo atk_component_info =
4684       {
4685         (GInterfaceInitFunc) atk_component_item_interface_init,
4686         (GInterfaceFinalizeFunc) NULL,
4687         NULL
4688       };
4689       static const GInterfaceInfo atk_action_info =
4690       {
4691         (GInterfaceInitFunc) atk_action_item_interface_init,
4692         (GInterfaceFinalizeFunc) NULL,
4693         NULL
4694       };
4695       static const GInterfaceInfo atk_image_info =
4696       {
4697         (GInterfaceInitFunc) atk_image_item_interface_init,
4698         (GInterfaceFinalizeFunc) NULL,
4699         NULL
4700       };
4701       static const GInterfaceInfo atk_text_info =
4702       {
4703         (GInterfaceInitFunc) atk_text_item_interface_init,
4704         (GInterfaceFinalizeFunc) NULL,
4705         NULL
4706       };
4707
4708       type = g_type_register_static (ATK_TYPE_OBJECT,
4709                                      "GtkIconViewItemAccessible", &tinfo, 0);
4710       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
4711                                    &atk_component_info);
4712       g_type_add_interface_static (type, ATK_TYPE_ACTION,
4713                                    &atk_action_info);
4714       g_type_add_interface_static (type, ATK_TYPE_IMAGE,
4715                                    &atk_image_info);
4716       g_type_add_interface_static (type, ATK_TYPE_TEXT,
4717                                    &atk_text_info);
4718     }
4719
4720   return type;
4721 }
4722
4723 #define GTK_TYPE_ICON_VIEW_ACCESSIBLE      (gtk_icon_view_accessible_get_type ())
4724 #define GTK_ICON_VIEW_ACCESSIBLE(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE, GtkIconViewAccessible))
4725 #define GTK_IS_ICON_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE))
4726
4727 static GType gtk_icon_view_accessible_get_type (void);
4728
4729 typedef struct
4730 {
4731    AtkObject parent;
4732 } GtkIconViewAccessible;
4733
4734 typedef struct
4735 {
4736   AtkObject *item;
4737   gint       index;
4738 } GtkIconViewItemAccessibleInfo;
4739
4740 typedef struct
4741 {
4742   GList *items;
4743
4744   GtkAdjustment *old_hadj;
4745   GtkAdjustment *old_vadj;
4746
4747   GtkTreeModel *model;
4748
4749 } GtkIconViewAccessiblePrivate;
4750
4751 static GtkIconViewAccessiblePrivate *
4752 gtk_icon_view_accessible_get_priv (AtkObject *accessible)
4753 {
4754   return g_object_get_qdata (G_OBJECT (accessible),
4755                              accessible_private_data_quark);
4756 }
4757
4758 static void
4759 gtk_icon_view_item_accessible_info_new (AtkObject *accessible,
4760                                         AtkObject *item,
4761                                         gint       index)
4762 {
4763   GtkIconViewItemAccessibleInfo *info;
4764   GtkIconViewItemAccessibleInfo *tmp_info;
4765   GtkIconViewAccessiblePrivate *priv;
4766   GList *items;
4767
4768   info = g_new (GtkIconViewItemAccessibleInfo, 1);
4769   info->item = item;
4770   info->index = index;
4771
4772   priv = gtk_icon_view_accessible_get_priv (accessible);
4773   items = priv->items;
4774   while (items)
4775     {
4776       tmp_info = items->data;
4777       if (tmp_info->index > index)
4778         break;
4779       items = items->next;
4780     }
4781   priv->items = g_list_insert_before (priv->items, items, info);
4782   priv->old_hadj = NULL;
4783   priv->old_vadj = NULL;
4784 }
4785
4786 static gint
4787 gtk_icon_view_accessible_get_n_children (AtkObject *accessible)
4788 {
4789   GtkIconView *icon_view;
4790   GtkWidget *widget;
4791
4792   widget = GTK_ACCESSIBLE (accessible)->widget;
4793   if (!widget)
4794       return 0;
4795
4796   icon_view = GTK_ICON_VIEW (widget);
4797
4798   return g_list_length (icon_view->priv->items);
4799 }
4800
4801 static AtkObject *
4802 gtk_icon_view_accessible_find_child (AtkObject *accessible,
4803                                      gint       index)
4804 {
4805   GtkIconViewAccessiblePrivate *priv;
4806   GtkIconViewItemAccessibleInfo *info;
4807   GList *items;
4808
4809   priv = gtk_icon_view_accessible_get_priv (accessible);
4810   items = priv->items;
4811
4812   while (items)
4813     {
4814       info = items->data;
4815       if (info->index == index)
4816         return info->item;
4817       items = items->next;
4818     }
4819   return NULL;
4820 }
4821
4822 static AtkObject *
4823 gtk_icon_view_accessible_ref_child (AtkObject *accessible,
4824                                     gint       index)
4825 {
4826   GtkIconView *icon_view;
4827   GtkWidget *widget;
4828   GList *icons;
4829   AtkObject *obj;
4830   GtkIconViewItemAccessible *a11y_item;
4831
4832   widget = GTK_ACCESSIBLE (accessible)->widget;
4833   if (!widget)
4834     return NULL;
4835
4836   icon_view = GTK_ICON_VIEW (widget);
4837   icons = g_list_nth (icon_view->priv->items, index);
4838   obj = NULL;
4839   if (icons)
4840     {
4841       GtkIconViewItem *item = icons->data;
4842
4843       g_return_val_if_fail (item->index == index, NULL);
4844       obj = gtk_icon_view_accessible_find_child (accessible, index);
4845       if (!obj)
4846         {
4847           obj = g_object_new (gtk_icon_view_item_accessible_get_type (), NULL);
4848           gtk_icon_view_item_accessible_info_new (accessible,
4849                                                   obj,
4850                                                   index);
4851           obj->role = ATK_ROLE_ICON;
4852           a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj);
4853           a11y_item->item = item;
4854           a11y_item->widget = widget;
4855           a11y_item->text_buffer = gtk_text_buffer_new (NULL);
4856           gtk_icon_view_update_item_text (icon_view, item);
4857           gtk_text_buffer_set_text (a11y_item->text_buffer,
4858                                     pango_layout_get_text (icon_view->priv->layout),
4859                                     -1);
4860           gtk_icon_view_item_accessible_set_visibility (a11y_item, FALSE);
4861           g_object_add_weak_pointer (G_OBJECT (widget), (gpointer) &(a11y_item->widget));
4862        }
4863       g_object_ref (obj);
4864     }
4865   return obj;
4866 }
4867
4868 static void
4869 gtk_icon_view_accessible_traverse_items (GtkIconViewAccessible *view,
4870                                          GList                 *list)
4871 {
4872   GtkIconViewAccessiblePrivate *priv;
4873   GtkIconViewItemAccessibleInfo *info;
4874   GtkIconViewItemAccessible *item;
4875   GList *items;
4876
4877   priv =  gtk_icon_view_accessible_get_priv (ATK_OBJECT (view));
4878   if (priv->items)
4879     {
4880       GtkWidget *widget;
4881       gboolean act_on_item;
4882
4883       widget = GTK_ACCESSIBLE (view)->widget;
4884       if (widget == NULL)
4885         return;
4886
4887       items = priv->items;
4888
4889       act_on_item = (list == NULL);
4890
4891       while (items)
4892         {
4893
4894           info = (GtkIconViewItemAccessibleInfo *)items->data;
4895           item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
4896
4897           if (act_on_item == FALSE && list == items)
4898             act_on_item = TRUE;
4899
4900           if (act_on_item)
4901             gtk_icon_view_item_accessible_set_visibility (item, TRUE);
4902
4903           items = items->next;
4904        }
4905    }
4906 }
4907
4908 static void
4909 gtk_icon_view_accessible_adjustment_changed (GtkAdjustment *adjustment,
4910                                              GtkIconView   *icon_view)
4911 {
4912   AtkObject *obj;
4913   GtkIconViewAccessible *view;
4914
4915   /*
4916    * The scrollbars have changed
4917    */
4918   obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view));
4919   view = GTK_ICON_VIEW_ACCESSIBLE (obj);
4920
4921   gtk_icon_view_accessible_traverse_items (view, NULL);
4922 }
4923
4924 static void
4925 gtk_icon_view_accessible_set_scroll_adjustments (GtkWidget      *widget,
4926                                                  GtkAdjustment *hadj,
4927                                                  GtkAdjustment *vadj)
4928 {
4929   AtkObject *atk_obj;
4930   GtkIconViewAccessiblePrivate *priv;
4931
4932   atk_obj = gtk_widget_get_accessible (widget);
4933   priv = gtk_icon_view_accessible_get_priv (atk_obj);
4934
4935   if (priv->old_hadj != hadj)
4936     {
4937       if (priv->old_hadj)
4938         {
4939           g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
4940                                         (gpointer *)&priv->old_hadj);
4941
4942           g_signal_handlers_disconnect_by_func (priv->old_hadj,
4943                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
4944                                                 widget);
4945         }
4946       priv->old_hadj = hadj;
4947       if (priv->old_hadj)
4948         {
4949           g_object_add_weak_pointer (G_OBJECT (priv->old_hadj),
4950                                      (gpointer *)&priv->old_hadj);
4951           g_signal_connect (hadj,
4952                             "value-changed",
4953                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
4954                             widget);
4955         }
4956     }
4957   if (priv->old_vadj != vadj)
4958     {
4959       if (priv->old_vadj)
4960         {
4961           g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
4962                                         (gpointer *)&priv->old_vadj);
4963
4964           g_signal_handlers_disconnect_by_func (priv->old_vadj,
4965                                                 (gpointer) gtk_icon_view_accessible_adjustment_changed,
4966                                                 widget);
4967         }
4968       priv->old_vadj = vadj;
4969       if (priv->old_vadj)
4970         {
4971           g_object_add_weak_pointer (G_OBJECT (priv->old_vadj),
4972                                      (gpointer *)&priv->old_vadj);
4973           g_signal_connect (vadj,
4974                             "value-changed",
4975                             G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
4976                             widget);
4977         }
4978     }
4979 }
4980
4981 static void
4982 gtk_icon_view_accessible_model_row_changed (GtkTreeModel *tree_model,
4983                                             GtkTreePath  *path,
4984                                             GtkTreeIter  *iter,
4985                                             gpointer     user_data)
4986 {
4987   AtkObject *atk_obj;
4988
4989   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
4990   g_signal_emit_by_name (atk_obj, "visible-data-changed");
4991
4992   return;
4993 }
4994
4995 static void
4996 gtk_icon_view_accessible_model_row_inserted (GtkTreeModel *tree_model,
4997                                              GtkTreePath  *path,
4998                                              GtkTreeIter  *iter,
4999                                              gpointer     user_data)
5000 {
5001   GtkIconViewAccessiblePrivate *priv;
5002   GtkIconViewItemAccessibleInfo *info;
5003   GtkIconViewAccessible *view;
5004   GtkIconViewItemAccessible *item;
5005   GList *items;
5006   GList *tmp_list;
5007   AtkObject *atk_obj;
5008   gint index;
5009
5010   index = gtk_tree_path_get_indices(path)[0];
5011   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5012   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5013   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5014
5015   items = priv->items;
5016   tmp_list = NULL;
5017   while (items)
5018     {
5019       info = items->data;
5020       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5021       if (info->index != item->item->index)
5022         {
5023           if (info->index < index)
5024             g_warning ("Unexpected index value on insertion %d %d", index, info->index);
5025
5026           if (tmp_list == NULL)
5027             tmp_list = items;
5028
5029           info->index = item->item->index;
5030         }
5031
5032       items = items->next;
5033     }
5034   gtk_icon_view_accessible_traverse_items (view, tmp_list);
5035   g_signal_emit_by_name (atk_obj, "children_changed::add",
5036                          index, NULL, NULL);
5037   return;
5038 }
5039
5040 static void
5041 gtk_icon_view_accessible_model_row_deleted (GtkTreeModel *tree_model,
5042                                             GtkTreePath  *path,
5043                                             gpointer     user_data)
5044 {
5045   GtkIconViewAccessiblePrivate *priv;
5046   GtkIconViewItemAccessibleInfo *info;
5047   GtkIconViewAccessible *view;
5048   GtkIconViewItemAccessible *item;
5049   GList *items;
5050   GList *tmp_list;
5051   GList *deleted_item;
5052   AtkObject *atk_obj;
5053   gint index;
5054
5055   index = gtk_tree_path_get_indices(path)[0];
5056   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5057   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5058   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5059
5060   items = priv->items;
5061   tmp_list = NULL;
5062   deleted_item = NULL;
5063   info = NULL;
5064   while (items)
5065     {
5066       info = items->data;
5067       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5068       if (info->index == index)
5069         {
5070           deleted_item = items;
5071         }
5072       if (info->index != item->item->index)
5073         {
5074           if (tmp_list == NULL)
5075             tmp_list = items;
5076           else
5077             info->index = item->item->index;
5078         }
5079
5080       items = items->next;
5081     }
5082   gtk_icon_view_accessible_traverse_items (view, tmp_list);
5083   if (deleted_item)
5084     {
5085       info = deleted_item->data;
5086       gtk_icon_view_item_accessible_add_state (GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item), ATK_STATE_DEFUNCT, TRUE);
5087     }
5088   g_signal_emit_by_name (atk_obj, "children_changed::remove",
5089                          index, NULL, NULL);
5090   if (deleted_item)
5091     {
5092       priv->items = g_list_remove_link (priv->items, deleted_item);
5093       g_free (info);
5094     }
5095
5096   return;
5097 }
5098
5099 static gint
5100 gtk_icon_view_accessible_item_compare (GtkIconViewItemAccessibleInfo *i1,
5101                                        GtkIconViewItemAccessibleInfo *i2)
5102 {
5103   return i1->index - i2->index;
5104 }
5105
5106 static void
5107 gtk_icon_view_accessible_model_rows_reordered (GtkTreeModel *tree_model,
5108                                                GtkTreePath  *path,
5109                                                GtkTreeIter  *iter,
5110                                                gint         *new_order,
5111                                                gpointer     user_data)
5112 {
5113   GtkIconViewAccessiblePrivate *priv;
5114   GtkIconViewItemAccessibleInfo *info;
5115   GtkIconViewAccessible *view;
5116   GtkIconView *icon_view;
5117   GtkIconViewItemAccessible *item;
5118   GList *items;
5119   GList *tmp_list;
5120   AtkObject *atk_obj;
5121
5122   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data));
5123   icon_view = GTK_ICON_VIEW (user_data);
5124   view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5125   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5126
5127   items = priv->items;
5128   tmp_list = NULL;
5129   while (items)
5130     {
5131       info = items->data;
5132       item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item);
5133       info->index = new_order[info->index];
5134       tmp_list = g_list_nth (icon_view->priv->items, info->index);
5135       item->item = tmp_list->data;
5136       items = items->next;
5137     }
5138   priv->items = g_list_sort (priv->items,
5139                              (GCompareFunc)gtk_icon_view_accessible_item_compare);
5140
5141   return;
5142 }
5143
5144 static void
5145 gtk_icon_view_accessible_disconnect_model_signals (GtkTreeModel *model,
5146                                                    GtkWidget *widget)
5147 {
5148   GObject *obj;
5149
5150   obj = G_OBJECT (model);
5151   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_changed, widget);
5152   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_inserted, widget);
5153   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_deleted, widget);
5154   g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_rows_reordered, widget);
5155 }
5156
5157 static void
5158 gtk_icon_view_accessible_connect_model_signals (GtkIconView *icon_view)
5159 {
5160   GObject *obj;
5161
5162   obj = G_OBJECT (icon_view->priv->model);
5163   g_signal_connect_data (obj, "row-changed",
5164                          (GCallback) gtk_icon_view_accessible_model_row_changed,
5165                          icon_view, NULL, 0);
5166   g_signal_connect_data (obj, "row-inserted",
5167                          (GCallback) gtk_icon_view_accessible_model_row_inserted,
5168                          icon_view, NULL, G_CONNECT_AFTER);
5169   g_signal_connect_data (obj, "row-deleted",
5170                          (GCallback) gtk_icon_view_accessible_model_row_deleted,
5171                          icon_view, NULL, G_CONNECT_AFTER);
5172   g_signal_connect_data (obj, "rows-reordered",
5173                          (GCallback) gtk_icon_view_accessible_model_rows_reordered,
5174                          icon_view, NULL, G_CONNECT_AFTER);
5175 }
5176
5177 static void
5178 gtk_icon_view_accessible_clear_cache (GtkIconViewAccessiblePrivate *priv)
5179 {
5180   GtkIconViewItemAccessibleInfo *info;
5181   GList *items;
5182
5183   items = priv->items;
5184   while (items)
5185     {
5186       info = (GtkIconViewItemAccessibleInfo *) items->data;
5187       g_object_unref (info->item);
5188       g_free (items->data);
5189       items = items->next;
5190     }
5191   g_list_free (priv->items);
5192   priv->items = NULL;
5193 }
5194
5195 static void
5196 gtk_icon_view_accessible_notify_gtk (GObject *obj,
5197                                      GParamSpec *pspec)
5198 {
5199   GtkIconView *icon_view;
5200   GtkWidget *widget;
5201   AtkObject *atk_obj;
5202   GtkIconViewAccessible *view;
5203   GtkIconViewAccessiblePrivate *priv;
5204
5205   if (strcmp (pspec->name, "model") == 0)
5206     {
5207       widget = GTK_WIDGET (obj);
5208       atk_obj = gtk_widget_get_accessible (widget);
5209       view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj);
5210       priv = gtk_icon_view_accessible_get_priv (atk_obj);
5211       if (priv->model)
5212         {
5213           g_object_remove_weak_pointer (G_OBJECT (priv->model),
5214                                         (gpointer *)&priv->model);
5215           gtk_icon_view_accessible_disconnect_model_signals (priv->model, widget);
5216         }
5217       gtk_icon_view_accessible_clear_cache (priv);
5218
5219       icon_view = GTK_ICON_VIEW (obj);
5220       priv->model = icon_view->priv->model;
5221       /* If there is no model the GtkIconView is probably being destroyed */
5222       if (priv->model)
5223         {
5224           g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
5225           gtk_icon_view_accessible_connect_model_signals (icon_view);
5226         }
5227     }
5228
5229   return;
5230 }
5231
5232 static void
5233 gtk_icon_view_accessible_initialize (AtkObject *accessible,
5234                                      gpointer   data)
5235 {
5236   GtkIconViewAccessiblePrivate *priv;
5237   GtkIconView *icon_view;
5238
5239   if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize)
5240     ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data);
5241
5242   priv = g_new0 (GtkIconViewAccessiblePrivate, 1);
5243   g_object_set_qdata (G_OBJECT (accessible),
5244                       accessible_private_data_quark,
5245                       priv);
5246
5247   icon_view = GTK_ICON_VIEW (data);
5248   if (icon_view->priv->hadjustment)
5249     {
5250       priv->old_hadj = icon_view->priv->hadjustment;
5251       g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj);
5252       g_signal_connect (icon_view->priv->hadjustment,
5253                         "value-changed",
5254                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5255                         icon_view);
5256     }
5257   if (icon_view->priv->vadjustment)
5258     {
5259       priv->old_vadj = icon_view->priv->vadjustment;
5260       g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj);
5261       g_signal_connect (icon_view->priv->vadjustment,
5262                         "value-changed",
5263                         G_CALLBACK (gtk_icon_view_accessible_adjustment_changed),
5264                         icon_view);
5265     }
5266   g_signal_connect_after (data,
5267                           "set_scroll_adjustments",
5268                           G_CALLBACK (gtk_icon_view_accessible_set_scroll_adjustments),
5269                           NULL);
5270   g_signal_connect (data,
5271                     "notify",
5272                     G_CALLBACK (gtk_icon_view_accessible_notify_gtk),
5273                     NULL);
5274
5275   priv->model = icon_view->priv->model;
5276   if (priv->model)
5277     {
5278       g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model);
5279       gtk_icon_view_accessible_connect_model_signals (icon_view);
5280     }
5281
5282   accessible->role = ATK_ROLE_LAYERED_PANE;
5283 }
5284
5285 static void
5286 gtk_icon_view_accessible_finalize (GObject *object)
5287 {
5288   GtkIconViewAccessiblePrivate *priv;
5289
5290   priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (object));
5291   gtk_icon_view_accessible_clear_cache (priv);
5292
5293   g_free (priv);
5294
5295   G_OBJECT_CLASS (accessible_parent_class)->finalize (object);
5296 }
5297
5298 static void
5299 gtk_icon_view_accessible_destroyed (GtkWidget *widget,
5300                                     GtkAccessible *accessible)
5301 {
5302   AtkObject *atk_obj;
5303   GtkIconViewAccessiblePrivate *priv;
5304
5305   atk_obj = ATK_OBJECT (accessible);
5306   priv = gtk_icon_view_accessible_get_priv (atk_obj);
5307   if (priv->old_hadj)
5308     {
5309       g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj),
5310                                     (gpointer *)&priv->old_hadj);
5311
5312       g_signal_handlers_disconnect_by_func (priv->old_hadj,
5313                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
5314                                             widget);
5315       priv->old_hadj = NULL;
5316     }
5317   if (priv->old_vadj)
5318     {
5319       g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj),
5320                                     (gpointer *)&priv->old_vadj);
5321
5322       g_signal_handlers_disconnect_by_func (priv->old_vadj,
5323                                             (gpointer) gtk_icon_view_accessible_adjustment_changed,
5324                                             widget);
5325       priv->old_vadj = NULL;
5326     }
5327 }
5328
5329 static void
5330 gtk_icon_view_accessible_connect_widget_destroyed (GtkAccessible *accessible)
5331 {
5332   if (accessible->widget)
5333     {
5334       g_signal_connect_after (accessible->widget,
5335                               "destroy",
5336                               G_CALLBACK (gtk_icon_view_accessible_destroyed),
5337                               accessible);
5338     }
5339   GTK_ACCESSIBLE_CLASS (accessible_parent_class)->connect_widget_destroyed (accessible);
5340 }
5341
5342 static void
5343 gtk_icon_view_accessible_class_init (AtkObjectClass *klass)
5344 {
5345   GObjectClass *gobject_class;
5346   GtkAccessibleClass *accessible_class;
5347
5348   accessible_parent_class = g_type_class_peek_parent (klass);
5349
5350   gobject_class = (GObjectClass *)klass;
5351   accessible_class = (GtkAccessibleClass *)klass;
5352
5353   gobject_class->finalize = gtk_icon_view_accessible_finalize;
5354
5355   klass->get_n_children = gtk_icon_view_accessible_get_n_children;
5356   klass->ref_child = gtk_icon_view_accessible_ref_child;
5357   klass->initialize = gtk_icon_view_accessible_initialize;
5358
5359   accessible_class->connect_widget_destroyed = gtk_icon_view_accessible_connect_widget_destroyed;
5360
5361   accessible_private_data_quark = g_quark_from_static_string ("icon_view-accessible-private-data");
5362 }
5363
5364 static AtkObject*
5365 gtk_icon_view_accessible_ref_accessible_at_point (AtkComponent *component,
5366                                                   gint          x,
5367                                                   gint          y,
5368                                                   AtkCoordType  coord_type)
5369 {
5370   GtkWidget *widget;
5371   GtkIconView *icon_view;
5372   GtkIconViewItem *item;
5373   gint x_pos, y_pos;
5374
5375   widget = GTK_ACCESSIBLE (component)->widget;
5376   if (widget == NULL)
5377   /* State is defunct */
5378     return NULL;
5379
5380   icon_view = GTK_ICON_VIEW (widget);
5381   atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type);
5382   item = gtk_icon_view_get_item_at_pos (icon_view, x - x_pos, y - y_pos);
5383   if (item)
5384     return gtk_icon_view_accessible_ref_child (ATK_OBJECT (component), item->index);
5385
5386   return NULL;
5387 }
5388
5389 static void
5390 atk_component_interface_init (AtkComponentIface *iface)
5391 {
5392   iface->ref_accessible_at_point = gtk_icon_view_accessible_ref_accessible_at_point;
5393 }
5394
5395 static gboolean
5396 gtk_icon_view_accessible_add_selection (AtkSelection *selection,
5397                                         gint i)
5398 {
5399   GtkWidget *widget;
5400   GtkIconView *icon_view;
5401   GtkIconViewItem *item;
5402   GList *l;
5403
5404   widget = GTK_ACCESSIBLE (selection)->widget;
5405   if (widget == NULL)
5406     return FALSE;
5407
5408   icon_view = GTK_ICON_VIEW (widget);
5409
5410   l = g_list_nth (icon_view->priv->items, i);
5411   if (!l)
5412     return FALSE;
5413
5414   item = l->data;
5415   gtk_icon_view_select_item (icon_view, item);
5416
5417   return TRUE;
5418 }
5419
5420 static gboolean
5421 gtk_icon_view_accessible_clear_selection (AtkSelection *selection)
5422 {
5423   GtkWidget *widget;
5424   GtkIconView *icon_view;
5425
5426   widget = GTK_ACCESSIBLE (selection)->widget;
5427   if (widget == NULL)
5428     return FALSE;
5429
5430   icon_view = GTK_ICON_VIEW (widget);
5431   gtk_icon_view_unselect_all (icon_view);
5432
5433   return TRUE;
5434 }
5435
5436 static AtkObject*
5437 gtk_icon_view_accessible_ref_selection (AtkSelection *selection,
5438                                         gint          i)
5439 {
5440   GtkWidget *widget;
5441   GtkIconView *icon_view;
5442   GtkIconViewItem *item;
5443   GList *l;
5444
5445   widget = GTK_ACCESSIBLE (selection)->widget;
5446   if (widget == NULL)
5447     return NULL;
5448
5449   icon_view = GTK_ICON_VIEW (widget);
5450
5451   l = icon_view->priv->items;
5452   while (l)
5453     {
5454       item = l->data;
5455       if (item->selected)
5456         {
5457           if (i == 0)
5458             return atk_object_ref_accessible_child (gtk_widget_get_accessible (widget), item->index);
5459           else
5460             i--;
5461         }
5462       l = l->next;
5463     }
5464
5465   return NULL;
5466 }
5467
5468 static gint
5469 gtk_icon_view_accessible_get_selection_count (AtkSelection *selection)
5470 {
5471   GtkWidget *widget;
5472   GtkIconView *icon_view;
5473   GtkIconViewItem *item;
5474   GList *l;
5475   gint count;
5476
5477   widget = GTK_ACCESSIBLE (selection)->widget;
5478   if (widget == NULL)
5479     return 0;
5480
5481   icon_view = GTK_ICON_VIEW (widget);
5482
5483   l = icon_view->priv->items;
5484   count = 0;
5485   while (l)
5486     {
5487       item = l->data;
5488
5489       if (item->selected)
5490         count++;
5491
5492       l = l->next;
5493     }
5494
5495   return count;
5496 }
5497
5498 static gboolean
5499 gtk_icon_view_accessible_is_child_selected (AtkSelection *selection,
5500                                             gint          i)
5501 {
5502   GtkWidget *widget;
5503   GtkIconView *icon_view;
5504   GtkIconViewItem *item;
5505   GList *l;
5506
5507   widget = GTK_ACCESSIBLE (selection)->widget;
5508   if (widget == NULL)
5509     return FALSE;
5510
5511   icon_view = GTK_ICON_VIEW (widget);
5512   l = g_list_nth (icon_view->priv->items, i);
5513   if (!l)
5514     return FALSE;
5515
5516   item = l->data;
5517
5518   return item->selected;
5519 }
5520
5521 static gboolean
5522 gtk_icon_view_accessible_remove_selection (AtkSelection *selection,
5523                                            gint          i)
5524 {
5525   GtkWidget *widget;
5526   GtkIconView *icon_view;
5527   GtkIconViewItem *item;
5528   GList *l;
5529   gint count;
5530
5531   widget = GTK_ACCESSIBLE (selection)->widget;
5532   if (widget == NULL)
5533     return FALSE;
5534
5535   icon_view = GTK_ICON_VIEW (widget);
5536   l = icon_view->priv->items;
5537   count = 0;
5538   while (l)
5539     {
5540       item = l->data;
5541       if (item->selected)
5542         {
5543           if (count == i)
5544             {
5545               gtk_icon_view_unselect_item (icon_view, item);
5546               return TRUE;
5547             }
5548           count++;
5549         }
5550       l = l->next;
5551     }
5552
5553   return FALSE;
5554 }
5555
5556 static gboolean
5557 gtk_icon_view_accessible_select_all_selection (AtkSelection *selection)
5558 {
5559   GtkWidget *widget;
5560   GtkIconView *icon_view;
5561
5562   widget = GTK_ACCESSIBLE (selection)->widget;
5563   if (widget == NULL)
5564     return FALSE;
5565
5566   icon_view = GTK_ICON_VIEW (widget);
5567   gtk_icon_view_select_all (icon_view);
5568   return TRUE;
5569 }
5570
5571 static void
5572 gtk_icon_view_accessible_selection_interface_init (AtkSelectionIface *iface)
5573 {
5574   iface->add_selection = gtk_icon_view_accessible_add_selection;
5575   iface->clear_selection = gtk_icon_view_accessible_clear_selection;
5576   iface->ref_selection = gtk_icon_view_accessible_ref_selection;
5577   iface->get_selection_count = gtk_icon_view_accessible_get_selection_count;
5578   iface->is_child_selected = gtk_icon_view_accessible_is_child_selected;
5579   iface->remove_selection = gtk_icon_view_accessible_remove_selection;
5580   iface->select_all_selection = gtk_icon_view_accessible_select_all_selection;
5581 }
5582
5583 static GType
5584 gtk_icon_view_accessible_get_type (void)
5585 {
5586   static GType type = 0;
5587
5588   if (!type)
5589     {
5590       static GTypeInfo tinfo =
5591       {
5592         0, /* class size */
5593         (GBaseInitFunc) NULL, /* base init */
5594         (GBaseFinalizeFunc) NULL, /* base finalize */
5595         (GClassInitFunc) gtk_icon_view_accessible_class_init,
5596         (GClassFinalizeFunc) NULL, /* class finalize */
5597         NULL, /* class data */
5598         0, /* instance size */
5599         0, /* nb preallocs */
5600         (GInstanceInitFunc) NULL, /* instance init */
5601         NULL /* value table */
5602       };
5603       static const GInterfaceInfo atk_component_info =
5604       {
5605         (GInterfaceInitFunc) atk_component_interface_init,
5606         (GInterfaceFinalizeFunc) NULL,
5607         NULL
5608       };
5609       static GInterfaceInfo atk_selection_info =
5610       {
5611         (GInterfaceInitFunc) gtk_icon_view_accessible_selection_interface_init,
5612         (GInterfaceFinalizeFunc) NULL,
5613         NULL
5614       };
5615
5616       /*
5617        * Figure out the size of the class and instance
5618        * we are deriving from
5619        */
5620       AtkObjectFactory *factory;
5621       GType derived_type;
5622       GTypeQuery query;
5623       GType derived_atk_type;
5624
5625       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
5626       factory = atk_registry_get_factory (atk_get_default_registry (),
5627                                           derived_type);
5628       derived_atk_type = atk_object_factory_get_accessible_type (factory);
5629       g_type_query (derived_atk_type, &query);
5630       tinfo.class_size = query.class_size;
5631       tinfo.instance_size = query.instance_size;
5632
5633       type = g_type_register_static (derived_atk_type,
5634                                      "GtkIconViewAccessible",
5635                                      &tinfo, 0);
5636       g_type_add_interface_static (type, ATK_TYPE_COMPONENT,
5637                                    &atk_component_info);
5638       g_type_add_interface_static (type, ATK_TYPE_SELECTION,
5639                                    &atk_selection_info);
5640     }
5641   return type;
5642 }
5643
5644 static AtkObject *
5645 gtk_icon_view_accessible_new (GObject *obj)
5646 {
5647   AtkObject *accessible;
5648
5649   g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
5650
5651   accessible = g_object_new (gtk_icon_view_accessible_get_type (), NULL);
5652   atk_object_initialize (accessible, obj);
5653
5654   return accessible;
5655 }
5656
5657 static GType
5658 gtk_icon_view_accessible_factory_get_accessible_type (void)
5659 {
5660   return gtk_icon_view_accessible_get_type ();
5661 }
5662
5663 static AtkObject*
5664 gtk_icon_view_accessible_factory_create_accessible (GObject *obj)
5665 {
5666   return gtk_icon_view_accessible_new (obj);
5667 }
5668
5669 static void
5670 gtk_icon_view_accessible_factory_class_init (AtkObjectFactoryClass *klass)
5671 {
5672   klass->create_accessible = gtk_icon_view_accessible_factory_create_accessible;
5673   klass->get_accessible_type = gtk_icon_view_accessible_factory_get_accessible_type;
5674 }
5675
5676 static GType
5677 gtk_icon_view_accessible_factory_get_type (void)
5678 {
5679   static GType type = 0;
5680
5681   if (!type)
5682     {
5683       static const GTypeInfo tinfo =
5684       {
5685         sizeof (AtkObjectFactoryClass),
5686         NULL,           /* base_init */
5687         NULL,           /* base_finalize */
5688         (GClassInitFunc) gtk_icon_view_accessible_factory_class_init,
5689         NULL,           /* class_finalize */
5690         NULL,           /* class_data */
5691         sizeof (AtkObjectFactory),
5692         0,             /* n_preallocs */
5693         NULL, NULL
5694       };
5695
5696       type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
5697                                     "GtkIconViewAccessibleFactory",
5698                                     &tinfo, 0);
5699     }
5700   return type;
5701 }
5702
5703 static AtkObject *
5704 gtk_icon_view_get_accessible (GtkWidget *widget)
5705 {
5706   static gboolean first_time = TRUE;
5707
5708   if (first_time)
5709     {
5710       AtkObjectFactory *factory;
5711       AtkRegistry *registry;
5712       GType derived_type;
5713       GType derived_atk_type;
5714
5715       /*
5716        * Figure out whether accessibility is enabled by looking at the
5717        * type of the accessible object which would be created for
5718        * the parent type of GtkIconView.
5719        */
5720       derived_type = g_type_parent (GTK_TYPE_ICON_VIEW);
5721
5722       registry = atk_get_default_registry ();
5723       factory = atk_registry_get_factory (registry,
5724                                           derived_type);
5725       derived_atk_type = atk_object_factory_get_accessible_type (factory);
5726       if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
5727         atk_registry_set_factory_type (registry,
5728                                        GTK_TYPE_ICON_VIEW,
5729                                        gtk_icon_view_accessible_factory_get_type ());
5730       first_time = FALSE;
5731     }
5732   return GTK_WIDGET_CLASS (parent_class)->get_accessible (widget);
5733 }
5734