1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser 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.
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 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
19 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
20 * file for a list of people on the GTK+ Team. See the ChangeLog
21 * files for a list of changes. These files are distributed with
22 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
31 #include "gtkiconfactory.h"
32 #include "gtkiconcache.h"
34 #include "gtkicontheme.h"
35 #include "gtksettingsprivate.h"
37 #include "gtkwidget.h"
39 #include "gtkbuildable.h"
40 #include "gtkbuilderprivate.h"
41 #include "gtktypebuiltins.h"
42 #include "deprecated/gtkstyle.h"
46 * SECTION:gtkiconfactory
47 * @Short_description: Manipulating stock icons
48 * @Title: Themeable Stock Images
50 * Browse the available stock icons in the list of stock IDs found <link
51 * linkend="gtk-Stock-Items">here</link>. You can also use
52 * the <application>gtk-demo</application> application for this purpose.
54 * An icon factory manages a collection of #GtkIconSet; a #GtkIconSet manages a
55 * set of variants of a particular icon (i.e. a #GtkIconSet contains variants for
56 * different sizes and widget states). Icons in an icon factory are named by a
57 * stock ID, which is a simple string identifying the icon. Each #GtkStyle has a
58 * list of #GtkIconFactory derived from the current theme; those icon factories
59 * are consulted first when searching for an icon. If the theme doesn't set a
60 * particular icon, GTK+ looks for the icon in a list of default icon factories,
61 * maintained by gtk_icon_factory_add_default() and
62 * gtk_icon_factory_remove_default(). Applications with icons should add a default
63 * icon factory with their icons, which will allow themes to override the icons
64 * for the application.
66 * To display an icon, always use gtk_style_lookup_icon_set() on the widget that
67 * will display the icon, or the convenience function
68 * gtk_widget_render_icon(). These functions take the theme into account when
69 * looking up the icon to use for a given stock ID.
71 * <refsect2 id="GtkIconFactory-BUILDER-UI">
72 * <title>GtkIconFactory as GtkBuildable</title>
74 * GtkIconFactory supports a custom <sources> element, which can contain
75 * multiple <source> elements.
76 * The following attributes are allowed:
79 * <term>stock-id</term>
81 * The stock id of the source, a string.
82 * This attribute is mandatory
86 * <term>filename</term>
88 * The filename of the source, a string.
89 * This attribute is optional
93 * <term>icon-name</term>
95 * The icon name for the source, a string.
96 * This attribute is optional.
102 * Size of the icon, a #GtkIconSize enum value.
103 * This attribute is optional.
107 * <term>direction</term>
109 * Direction of the source, a #GtkTextDirection enum value.
110 * This attribute is optional.
116 * State of the source, a #GtkStateType enum value.
117 * This attribute is optional.
122 * <title>A #GtkIconFactory UI definition fragment.</title>
123 * <programlisting><![CDATA[
124 * <object class="GtkIconFactory" id="iconfactory1">
126 * <source stock-id="apple-red" filename="apple-red.png"/>
129 * <object class="GtkWindow" id="window1">
131 * <object class="GtkButton" id="apple_button">
132 * <property name="label">apple-red</property>
133 * <property name="use-stock">True</property>
145 static GSList *all_icon_factories = NULL;
147 struct _GtkIconFactoryPrivate
153 GTK_ICON_SOURCE_EMPTY,
154 GTK_ICON_SOURCE_ICON_NAME,
155 GTK_ICON_SOURCE_STATIC_ICON_NAME,
156 GTK_ICON_SOURCE_FILENAME,
157 GTK_ICON_SOURCE_PIXBUF
160 struct _GtkIconSource
162 GtkIconSourceType type;
170 GdkPixbuf *filename_pixbuf;
172 GtkTextDirection direction;
176 /* If TRUE, then the parameter is wildcarded, and the above
177 * fields should be ignored. If FALSE, the parameter is
178 * specified, and the above fields should be valid.
180 guint any_direction : 1;
187 gtk_icon_factory_buildable_init (GtkBuildableIface *iface);
189 static gboolean gtk_icon_factory_buildable_custom_tag_start (GtkBuildable *buildable,
192 const gchar *tagname,
193 GMarkupParser *parser,
195 static void gtk_icon_factory_buildable_custom_tag_end (GtkBuildable *buildable,
198 const gchar *tagname,
199 gpointer *user_data);
200 static void gtk_icon_factory_finalize (GObject *object);
201 static void get_default_icons (GtkIconFactory *icon_factory);
202 static void icon_source_clear (GtkIconSource *source);
204 static GtkIconSize icon_size_register_intern (const gchar *name,
208 #define GTK_ICON_SOURCE_INIT(any_direction, any_state, any_size) \
209 { GTK_ICON_SOURCE_EMPTY, { NULL }, NULL, \
211 any_direction, any_state, any_size }
213 G_DEFINE_TYPE_WITH_CODE (GtkIconFactory, gtk_icon_factory, G_TYPE_OBJECT,
214 G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
215 gtk_icon_factory_buildable_init))
218 gtk_icon_factory_init (GtkIconFactory *factory)
220 GtkIconFactoryPrivate *priv;
222 factory->priv = G_TYPE_INSTANCE_GET_PRIVATE (factory,
223 GTK_TYPE_ICON_FACTORY,
224 GtkIconFactoryPrivate);
225 priv = factory->priv;
227 priv->icons = g_hash_table_new (g_str_hash, g_str_equal);
228 all_icon_factories = g_slist_prepend (all_icon_factories, factory);
232 gtk_icon_factory_class_init (GtkIconFactoryClass *klass)
234 GObjectClass *object_class = G_OBJECT_CLASS (klass);
236 object_class->finalize = gtk_icon_factory_finalize;
238 g_type_class_add_private (klass, sizeof (GtkIconFactoryPrivate));
242 gtk_icon_factory_buildable_init (GtkBuildableIface *iface)
244 iface->custom_tag_start = gtk_icon_factory_buildable_custom_tag_start;
245 iface->custom_tag_end = gtk_icon_factory_buildable_custom_tag_end;
249 free_icon_set (gpointer key, gpointer value, gpointer data)
252 gtk_icon_set_unref (value);
256 gtk_icon_factory_finalize (GObject *object)
258 GtkIconFactory *factory = GTK_ICON_FACTORY (object);
259 GtkIconFactoryPrivate *priv = factory->priv;
261 all_icon_factories = g_slist_remove (all_icon_factories, factory);
263 g_hash_table_foreach (priv->icons, free_icon_set, NULL);
265 g_hash_table_destroy (priv->icons);
267 G_OBJECT_CLASS (gtk_icon_factory_parent_class)->finalize (object);
271 * gtk_icon_factory_new:
273 * Creates a new #GtkIconFactory. An icon factory manages a collection
274 * of #GtkIconSet<!-- -->s; a #GtkIconSet manages a set of variants of a
275 * particular icon (i.e. a #GtkIconSet contains variants for different
276 * sizes and widget states). Icons in an icon factory are named by a
277 * stock ID, which is a simple string identifying the icon. Each
278 * #GtkStyle has a list of #GtkIconFactory<!-- -->s derived from the current
279 * theme; those icon factories are consulted first when searching for
280 * an icon. If the theme doesn't set a particular icon, GTK+ looks for
281 * the icon in a list of default icon factories, maintained by
282 * gtk_icon_factory_add_default() and
283 * gtk_icon_factory_remove_default(). Applications with icons should
284 * add a default icon factory with their icons, which will allow
285 * themes to override the icons for the application.
287 * Return value: a new #GtkIconFactory
290 gtk_icon_factory_new (void)
292 return g_object_new (GTK_TYPE_ICON_FACTORY, NULL);
296 * gtk_icon_factory_add:
297 * @factory: a #GtkIconFactory
298 * @stock_id: icon name
299 * @icon_set: icon set
301 * Adds the given @icon_set to the icon factory, under the name
302 * @stock_id. @stock_id should be namespaced for your application,
303 * e.g. "myapp-whatever-icon". Normally applications create a
304 * #GtkIconFactory, then add it to the list of default factories with
305 * gtk_icon_factory_add_default(). Then they pass the @stock_id to
306 * widgets such as #GtkImage to display the icon. Themes can provide
307 * an icon with the same name (such as "myapp-whatever-icon") to
308 * override your application's default icons. If an icon already
309 * existed in @factory for @stock_id, it is unreferenced and replaced
310 * with the new @icon_set.
313 gtk_icon_factory_add (GtkIconFactory *factory,
314 const gchar *stock_id,
315 GtkIconSet *icon_set)
317 GtkIconFactoryPrivate *priv = factory->priv;
318 gpointer old_key = NULL;
319 gpointer old_value = NULL;
321 g_return_if_fail (GTK_IS_ICON_FACTORY (factory));
322 g_return_if_fail (stock_id != NULL);
323 g_return_if_fail (icon_set != NULL);
325 g_hash_table_lookup_extended (priv->icons, stock_id,
326 &old_key, &old_value);
328 if (old_value == icon_set)
331 gtk_icon_set_ref (icon_set);
333 /* GHashTable key memory management is so fantastically broken. */
335 g_hash_table_insert (priv->icons, old_key, icon_set);
337 g_hash_table_insert (priv->icons, g_strdup (stock_id), icon_set);
340 gtk_icon_set_unref (old_value);
344 * gtk_icon_factory_lookup:
345 * @factory: a #GtkIconFactory
346 * @stock_id: an icon name
348 * Looks up @stock_id in the icon factory, returning an icon set
349 * if found, otherwise %NULL. For display to the user, you should
350 * use gtk_style_lookup_icon_set() on the #GtkStyle for the
351 * widget that will display the icon, instead of using this
352 * function directly, so that themes are taken into account.
354 * Return value: (transfer none): icon set of @stock_id.
357 gtk_icon_factory_lookup (GtkIconFactory *factory,
358 const gchar *stock_id)
360 GtkIconFactoryPrivate *priv;
362 g_return_val_if_fail (GTK_IS_ICON_FACTORY (factory), NULL);
363 g_return_val_if_fail (stock_id != NULL, NULL);
365 priv = factory->priv;
367 return g_hash_table_lookup (priv->icons, stock_id);
370 static GtkIconFactory *gtk_default_icons = NULL;
371 static GSList *default_factories = NULL;
374 * gtk_icon_factory_add_default:
375 * @factory: a #GtkIconFactory
377 * Adds an icon factory to the list of icon factories searched by
378 * gtk_style_lookup_icon_set(). This means that, for example,
379 * gtk_image_new_from_stock() will be able to find icons in @factory.
380 * There will normally be an icon factory added for each library or
381 * application that comes with icons. The default icon factories
382 * can be overridden by themes.
385 gtk_icon_factory_add_default (GtkIconFactory *factory)
387 g_return_if_fail (GTK_IS_ICON_FACTORY (factory));
389 g_object_ref (factory);
391 default_factories = g_slist_prepend (default_factories, factory);
395 * gtk_icon_factory_remove_default:
396 * @factory: a #GtkIconFactory previously added with gtk_icon_factory_add_default()
398 * Removes an icon factory from the list of default icon
399 * factories. Not normally used; you might use it for a library that
400 * can be unloaded or shut down.
403 gtk_icon_factory_remove_default (GtkIconFactory *factory)
405 g_return_if_fail (GTK_IS_ICON_FACTORY (factory));
407 default_factories = g_slist_remove (default_factories, factory);
409 g_object_unref (factory);
413 _gtk_icon_factory_ensure_default_icons (void)
415 if (gtk_default_icons == NULL)
417 gtk_default_icons = gtk_icon_factory_new ();
419 get_default_icons (gtk_default_icons);
424 * gtk_icon_factory_lookup_default:
425 * @stock_id: an icon name
427 * Looks for an icon in the list of default icon factories. For
428 * display to the user, you should use gtk_style_lookup_icon_set() on
429 * the #GtkStyle for the widget that will display the icon, instead of
430 * using this function directly, so that themes are taken into
433 * Return value: (transfer none): a #GtkIconSet, or %NULL
436 gtk_icon_factory_lookup_default (const gchar *stock_id)
440 g_return_val_if_fail (stock_id != NULL, NULL);
442 tmp_list = default_factories;
443 while (tmp_list != NULL)
445 GtkIconSet *icon_set =
446 gtk_icon_factory_lookup (GTK_ICON_FACTORY (tmp_list->data),
452 tmp_list = g_slist_next (tmp_list);
455 _gtk_icon_factory_ensure_default_icons ();
457 return gtk_icon_factory_lookup (gtk_default_icons, stock_id);
461 register_stock_icon (GtkIconFactory *factory,
462 const gchar *stock_id,
463 const gchar *icon_name)
465 GtkIconSet *set = gtk_icon_set_new ();
466 GtkIconSource source = GTK_ICON_SOURCE_INIT (TRUE, TRUE, TRUE);
468 source.type = GTK_ICON_SOURCE_STATIC_ICON_NAME;
469 source.source.icon_name = (gchar *)icon_name;
470 source.direction = GTK_TEXT_DIR_NONE;
471 gtk_icon_set_add_source (set, &source);
473 gtk_icon_factory_add (factory, stock_id, set);
474 gtk_icon_set_unref (set);
478 register_bidi_stock_icon (GtkIconFactory *factory,
479 const gchar *stock_id,
480 const gchar *icon_name)
482 GtkIconSet *set = gtk_icon_set_new ();
483 GtkIconSource source = GTK_ICON_SOURCE_INIT (FALSE, TRUE, TRUE);
485 source.type = GTK_ICON_SOURCE_STATIC_ICON_NAME;
486 source.source.icon_name = (gchar *)icon_name;
487 source.direction = GTK_TEXT_DIR_LTR;
488 gtk_icon_set_add_source (set, &source);
490 source.type = GTK_ICON_SOURCE_STATIC_ICON_NAME;
491 source.source.icon_name = (gchar *)icon_name;
492 source.direction = GTK_TEXT_DIR_RTL;
493 gtk_icon_set_add_source (set, &source);
495 gtk_icon_factory_add (factory, stock_id, set);
496 gtk_icon_set_unref (set);
500 get_default_icons (GtkIconFactory *factory)
502 /* KEEP IN SYNC with gtkstock.c */
504 register_stock_icon (factory, GTK_STOCK_DIALOG_AUTHENTICATION, "dialog-password");
505 register_stock_icon (factory, GTK_STOCK_DIALOG_ERROR, "dialog-error");
506 register_stock_icon (factory, GTK_STOCK_DIALOG_INFO, "dialog-information");
507 register_stock_icon (factory, GTK_STOCK_DIALOG_QUESTION, "dialog-question");
508 register_stock_icon (factory, GTK_STOCK_DIALOG_WARNING, "dialog-warning");
509 register_stock_icon (factory, GTK_STOCK_DND, GTK_STOCK_DND);
510 register_stock_icon (factory, GTK_STOCK_DND_MULTIPLE, GTK_STOCK_DND_MULTIPLE);
511 register_stock_icon (factory, GTK_STOCK_APPLY, GTK_STOCK_APPLY);
512 register_stock_icon (factory, GTK_STOCK_CANCEL, GTK_STOCK_CANCEL);
513 register_stock_icon (factory, GTK_STOCK_NO, GTK_STOCK_NO);
514 register_stock_icon (factory, GTK_STOCK_OK, GTK_STOCK_OK);
515 register_stock_icon (factory, GTK_STOCK_YES, GTK_STOCK_YES);
516 register_stock_icon (factory, GTK_STOCK_CLOSE, "window-close");
517 register_stock_icon (factory, GTK_STOCK_ADD, "list-add");
518 register_stock_icon (factory, GTK_STOCK_JUSTIFY_CENTER, "format-justify-center");
519 register_stock_icon (factory, GTK_STOCK_JUSTIFY_FILL, "format-justify-fill");
520 register_stock_icon (factory, GTK_STOCK_JUSTIFY_LEFT, "format-justify-left");
521 register_stock_icon (factory, GTK_STOCK_JUSTIFY_RIGHT, "format-justify-right");
522 register_stock_icon (factory, GTK_STOCK_GOTO_BOTTOM, "go-bottom");
523 register_stock_icon (factory, GTK_STOCK_CDROM, "media-optical");
524 register_stock_icon (factory, GTK_STOCK_CONVERT, GTK_STOCK_CONVERT);
525 register_stock_icon (factory, GTK_STOCK_COPY, "edit-copy");
526 register_stock_icon (factory, GTK_STOCK_CUT, "edit-cut");
527 register_stock_icon (factory, GTK_STOCK_GO_DOWN, "go-down");
528 register_stock_icon (factory, GTK_STOCK_EXECUTE, "system-run");
529 register_stock_icon (factory, GTK_STOCK_QUIT, "application-exit");
530 register_bidi_stock_icon (factory, GTK_STOCK_GOTO_FIRST, "go-first");
531 register_stock_icon (factory, GTK_STOCK_SELECT_FONT, GTK_STOCK_SELECT_FONT);
532 register_stock_icon (factory, GTK_STOCK_FULLSCREEN, "view-fullscreen");
533 register_stock_icon (factory, GTK_STOCK_LEAVE_FULLSCREEN, "view-restore");
534 register_stock_icon (factory, GTK_STOCK_HARDDISK, "drive-harddisk");
535 register_stock_icon (factory, GTK_STOCK_HELP, "help-contents");
536 register_stock_icon (factory, GTK_STOCK_HOME, "go-home");
537 register_stock_icon (factory, GTK_STOCK_INFO, "dialog-information");
538 register_bidi_stock_icon (factory, GTK_STOCK_JUMP_TO, "go-jump");
539 register_bidi_stock_icon (factory, GTK_STOCK_GOTO_LAST, "go-last");
540 register_bidi_stock_icon (factory, GTK_STOCK_GO_BACK, "go-previous");
541 register_stock_icon (factory, GTK_STOCK_MISSING_IMAGE, "image-missing");
542 register_stock_icon (factory, GTK_STOCK_NETWORK, "network-idle");
543 register_stock_icon (factory, GTK_STOCK_NEW, "document-new");
544 register_stock_icon (factory, GTK_STOCK_OPEN, "document-open");
545 register_stock_icon (factory, GTK_STOCK_ORIENTATION_PORTRAIT, GTK_STOCK_ORIENTATION_PORTRAIT);
546 register_stock_icon (factory, GTK_STOCK_ORIENTATION_LANDSCAPE, GTK_STOCK_ORIENTATION_LANDSCAPE);
547 register_stock_icon (factory, GTK_STOCK_ORIENTATION_REVERSE_PORTRAIT, GTK_STOCK_ORIENTATION_REVERSE_PORTRAIT);
548 register_stock_icon (factory, GTK_STOCK_ORIENTATION_REVERSE_LANDSCAPE, GTK_STOCK_ORIENTATION_REVERSE_LANDSCAPE);
549 register_stock_icon (factory, GTK_STOCK_PAGE_SETUP, GTK_STOCK_PAGE_SETUP);
550 register_stock_icon (factory, GTK_STOCK_PASTE, "edit-paste");
551 register_stock_icon (factory, GTK_STOCK_PREFERENCES, GTK_STOCK_PREFERENCES);
552 register_stock_icon (factory, GTK_STOCK_PRINT, "document-print");
553 register_stock_icon (factory, GTK_STOCK_PRINT_ERROR, "printer-error");
554 register_stock_icon (factory, GTK_STOCK_PRINT_PAUSED, "printer-paused");
555 register_stock_icon (factory, GTK_STOCK_PRINT_PREVIEW, "document-print-preview");
556 register_stock_icon (factory, GTK_STOCK_PRINT_REPORT, "printer-info");
557 register_stock_icon (factory, GTK_STOCK_PRINT_WARNING, "printer-warning");
558 register_stock_icon (factory, GTK_STOCK_PROPERTIES, "document-properties");
559 register_bidi_stock_icon (factory, GTK_STOCK_REDO, "edit-redo");
560 register_stock_icon (factory, GTK_STOCK_REMOVE, "list-remove");
561 register_stock_icon (factory, GTK_STOCK_REFRESH, "view-refresh");
562 register_bidi_stock_icon (factory, GTK_STOCK_REVERT_TO_SAVED, "document-revert");
563 register_bidi_stock_icon (factory, GTK_STOCK_GO_FORWARD, "go-next");
564 register_stock_icon (factory, GTK_STOCK_SAVE, "document-save");
565 register_stock_icon (factory, GTK_STOCK_FLOPPY, "media-floppy");
566 register_stock_icon (factory, GTK_STOCK_SAVE_AS, "document-save-as");
567 register_stock_icon (factory, GTK_STOCK_FIND, "edit-find");
568 register_stock_icon (factory, GTK_STOCK_FIND_AND_REPLACE, "edit-find-replace");
569 register_stock_icon (factory, GTK_STOCK_SORT_DESCENDING, "view-sort-descending");
570 register_stock_icon (factory, GTK_STOCK_SORT_ASCENDING, "view-sort-ascending");
571 register_stock_icon (factory, GTK_STOCK_SPELL_CHECK, "tools-check-spelling");
572 register_stock_icon (factory, GTK_STOCK_STOP, "process-stop");
573 register_stock_icon (factory, GTK_STOCK_BOLD, "format-text-bold");
574 register_stock_icon (factory, GTK_STOCK_ITALIC, "format-text-italic");
575 register_stock_icon (factory, GTK_STOCK_STRIKETHROUGH, "format-text-strikethrough");
576 register_stock_icon (factory, GTK_STOCK_UNDERLINE, "format-text-underline");
577 register_bidi_stock_icon (factory, GTK_STOCK_INDENT, "format-indent-more");
578 register_bidi_stock_icon (factory, GTK_STOCK_UNINDENT, "format-indent-less");
579 register_stock_icon (factory, GTK_STOCK_GOTO_TOP, "go-top");
580 register_stock_icon (factory, GTK_STOCK_DELETE, "edit-delete");
581 register_bidi_stock_icon (factory, GTK_STOCK_UNDELETE, GTK_STOCK_UNDELETE);
582 register_bidi_stock_icon (factory, GTK_STOCK_UNDO, "edit-undo");
583 register_stock_icon (factory, GTK_STOCK_GO_UP, "go-up");
584 register_stock_icon (factory, GTK_STOCK_FILE, "text-x-generic");
585 register_stock_icon (factory, GTK_STOCK_DIRECTORY, "folder");
586 register_stock_icon (factory, GTK_STOCK_ABOUT, "help-about");
587 register_stock_icon (factory, GTK_STOCK_CONNECT, GTK_STOCK_CONNECT);
588 register_stock_icon (factory, GTK_STOCK_DISCONNECT, GTK_STOCK_DISCONNECT);
589 register_stock_icon (factory, GTK_STOCK_EDIT, GTK_STOCK_EDIT);
590 register_stock_icon (factory, GTK_STOCK_CAPS_LOCK_WARNING, GTK_STOCK_CAPS_LOCK_WARNING);
591 register_bidi_stock_icon (factory, GTK_STOCK_MEDIA_FORWARD, "media-seek-forward");
592 register_bidi_stock_icon (factory, GTK_STOCK_MEDIA_NEXT, "media-skip-forward");
593 register_stock_icon (factory, GTK_STOCK_MEDIA_PAUSE, "media-playback-pause");
594 register_bidi_stock_icon (factory, GTK_STOCK_MEDIA_PLAY, "media-playback-start");
595 register_bidi_stock_icon (factory, GTK_STOCK_MEDIA_PREVIOUS, "media-skip-backward");
596 register_stock_icon (factory, GTK_STOCK_MEDIA_RECORD, "media-record");
597 register_bidi_stock_icon (factory, GTK_STOCK_MEDIA_REWIND, "media-seek-backward");
598 register_stock_icon (factory, GTK_STOCK_MEDIA_STOP, "media-playback-stop");
599 register_stock_icon (factory, GTK_STOCK_INDEX, GTK_STOCK_INDEX);
600 register_stock_icon (factory, GTK_STOCK_ZOOM_100, "zoom-original");
601 register_stock_icon (factory, GTK_STOCK_ZOOM_IN, "zoom-in");
602 register_stock_icon (factory, GTK_STOCK_ZOOM_OUT, "zoom-out");
603 register_stock_icon (factory, GTK_STOCK_ZOOM_FIT, "zoom-fit-best");
604 register_stock_icon (factory, GTK_STOCK_SELECT_ALL, "edit-select-all");
605 register_stock_icon (factory, GTK_STOCK_CLEAR, "edit-clear");
606 register_stock_icon (factory, GTK_STOCK_SELECT_COLOR, GTK_STOCK_SELECT_COLOR);
607 register_stock_icon (factory, GTK_STOCK_COLOR_PICKER, GTK_STOCK_COLOR_PICKER);
610 /************************************************************
611 * Icon size handling *
612 ************************************************************/
614 typedef struct _IconSize IconSize;
625 typedef struct _IconAlias IconAlias;
633 typedef struct _SettingsIconSize SettingsIconSize;
635 struct _SettingsIconSize
641 static GHashTable *icon_aliases = NULL;
642 static IconSize *icon_sizes = NULL;
643 static gint icon_sizes_allocated = 0;
644 static gint icon_sizes_used = 0;
647 init_icon_sizes (void)
649 if (icon_sizes == NULL)
651 #define NUM_BUILTIN_SIZES 7
654 icon_aliases = g_hash_table_new (g_str_hash, g_str_equal);
656 icon_sizes = g_new (IconSize, NUM_BUILTIN_SIZES);
657 icon_sizes_allocated = NUM_BUILTIN_SIZES;
658 icon_sizes_used = NUM_BUILTIN_SIZES;
660 icon_sizes[GTK_ICON_SIZE_INVALID].size = 0;
661 icon_sizes[GTK_ICON_SIZE_INVALID].name = NULL;
662 icon_sizes[GTK_ICON_SIZE_INVALID].width = 0;
663 icon_sizes[GTK_ICON_SIZE_INVALID].height = 0;
665 /* the name strings aren't copied since we don't ever remove
666 * icon sizes, so we don't need to know whether they're static.
667 * Even if we did I suppose removing the builtin sizes would be
671 icon_sizes[GTK_ICON_SIZE_MENU].size = GTK_ICON_SIZE_MENU;
672 icon_sizes[GTK_ICON_SIZE_MENU].name = "gtk-menu";
673 icon_sizes[GTK_ICON_SIZE_MENU].width = 16;
674 icon_sizes[GTK_ICON_SIZE_MENU].height = 16;
676 icon_sizes[GTK_ICON_SIZE_BUTTON].size = GTK_ICON_SIZE_BUTTON;
677 icon_sizes[GTK_ICON_SIZE_BUTTON].name = "gtk-button";
678 icon_sizes[GTK_ICON_SIZE_BUTTON].width = 20;
679 icon_sizes[GTK_ICON_SIZE_BUTTON].height = 20;
681 icon_sizes[GTK_ICON_SIZE_SMALL_TOOLBAR].size = GTK_ICON_SIZE_SMALL_TOOLBAR;
682 icon_sizes[GTK_ICON_SIZE_SMALL_TOOLBAR].name = "gtk-small-toolbar";
683 icon_sizes[GTK_ICON_SIZE_SMALL_TOOLBAR].width = 18;
684 icon_sizes[GTK_ICON_SIZE_SMALL_TOOLBAR].height = 18;
686 icon_sizes[GTK_ICON_SIZE_LARGE_TOOLBAR].size = GTK_ICON_SIZE_LARGE_TOOLBAR;
687 icon_sizes[GTK_ICON_SIZE_LARGE_TOOLBAR].name = "gtk-large-toolbar";
688 icon_sizes[GTK_ICON_SIZE_LARGE_TOOLBAR].width = 24;
689 icon_sizes[GTK_ICON_SIZE_LARGE_TOOLBAR].height = 24;
691 icon_sizes[GTK_ICON_SIZE_DND].size = GTK_ICON_SIZE_DND;
692 icon_sizes[GTK_ICON_SIZE_DND].name = "gtk-dnd";
693 icon_sizes[GTK_ICON_SIZE_DND].width = 32;
694 icon_sizes[GTK_ICON_SIZE_DND].height = 32;
696 icon_sizes[GTK_ICON_SIZE_DIALOG].size = GTK_ICON_SIZE_DIALOG;
697 icon_sizes[GTK_ICON_SIZE_DIALOG].name = "gtk-dialog";
698 icon_sizes[GTK_ICON_SIZE_DIALOG].width = 48;
699 icon_sizes[GTK_ICON_SIZE_DIALOG].height = 48;
701 g_assert ((GTK_ICON_SIZE_DIALOG + 1) == NUM_BUILTIN_SIZES);
703 /* Alias everything to itself. */
704 i = 1; /* skip invalid size */
705 while (i < NUM_BUILTIN_SIZES)
707 gtk_icon_size_register_alias (icon_sizes[i].name, icon_sizes[i].size);
712 #undef NUM_BUILTIN_SIZES
717 free_settings_sizes (gpointer data)
719 g_array_free (data, TRUE);
723 get_settings_sizes (GtkSettings *settings,
726 GArray *settings_sizes;
727 static GQuark sizes_quark = 0;
730 sizes_quark = g_quark_from_static_string ("gtk-icon-sizes");
732 settings_sizes = g_object_get_qdata (G_OBJECT (settings), sizes_quark);
735 settings_sizes = g_array_new (FALSE, FALSE, sizeof (SettingsIconSize));
736 g_object_set_qdata_full (G_OBJECT (settings), sizes_quark,
737 settings_sizes, free_settings_sizes);
742 return settings_sizes;
746 icon_size_set_for_settings (GtkSettings *settings,
747 const gchar *size_name,
752 GArray *settings_sizes;
753 SettingsIconSize *settings_size;
755 g_return_if_fail (size_name != NULL);
757 size = gtk_icon_size_from_name (size_name);
758 if (size == GTK_ICON_SIZE_INVALID)
759 /* Reserve a place */
760 size = icon_size_register_intern (size_name, -1, -1);
762 settings_sizes = get_settings_sizes (settings, NULL);
763 if (size >= settings_sizes->len)
765 SettingsIconSize unset = { -1, -1 };
768 for (i = settings_sizes->len; i <= size; i++)
769 g_array_append_val (settings_sizes, unset);
772 settings_size = &g_array_index (settings_sizes, SettingsIconSize, size);
774 settings_size->width = width;
775 settings_size->height = height;
778 /* Like pango_parse_word, but accept - as well
781 scan_icon_size_name (const char **pos, GString *out)
783 const char *p = *pos;
785 while (g_ascii_isspace (*p))
788 if (!((*p >= 'A' && *p <= 'Z') ||
789 (*p >= 'a' && *p <= 'z') ||
790 *p == '_' || *p == '-'))
793 g_string_truncate (out, 0);
794 g_string_append_c (out, *p);
797 while ((*p >= 'A' && *p <= 'Z') ||
798 (*p >= 'a' && *p <= 'z') ||
799 (*p >= '0' && *p <= '9') ||
800 *p == '_' || *p == '-')
802 g_string_append_c (out, *p);
812 icon_size_setting_parse (GtkSettings *settings,
813 const gchar *icon_size_string)
815 GString *name_buf = g_string_new (NULL);
816 const gchar *p = icon_size_string;
818 while (pango_skip_space (&p))
822 if (!scan_icon_size_name (&p, name_buf))
825 if (!pango_skip_space (&p))
833 if (!pango_scan_int (&p, &width))
836 if (!pango_skip_space (&p))
844 if (!pango_scan_int (&p, &height))
847 if (width > 0 && height > 0)
849 icon_size_set_for_settings (settings, name_buf->str,
854 g_warning ("Invalid size in gtk-icon-sizes: %d,%d\n", width, height);
857 pango_skip_space (&p);
866 g_string_free (name_buf, TRUE);
870 g_warning ("Error parsing gtk-icon-sizes string:\n\t'%s'", icon_size_string);
871 g_string_free (name_buf, TRUE);
875 icon_size_set_all_from_settings (GtkSettings *settings)
877 GArray *settings_sizes;
878 gchar *icon_size_string;
880 /* Reset old settings */
881 settings_sizes = get_settings_sizes (settings, NULL);
882 g_array_set_size (settings_sizes, 0);
884 g_object_get (settings,
885 "gtk-icon-sizes", &icon_size_string,
888 if (icon_size_string)
890 icon_size_setting_parse (settings, icon_size_string);
891 g_free (icon_size_string);
896 icon_size_settings_changed (GtkSettings *settings,
899 icon_size_set_all_from_settings (settings);
901 gtk_style_context_reset_widgets (_gtk_settings_get_screen (settings));
905 icon_sizes_init_for_settings (GtkSettings *settings)
907 g_signal_connect (settings,
908 "notify::gtk-icon-sizes",
909 G_CALLBACK (icon_size_settings_changed),
912 icon_size_set_all_from_settings (settings);
916 icon_size_lookup_intern (GtkSettings *settings,
921 GArray *settings_sizes;
922 gint width_for_settings = -1;
923 gint height_for_settings = -1;
927 if (size == (GtkIconSize)-1)
930 if (size >= icon_sizes_used)
933 if (size == GTK_ICON_SIZE_INVALID)
938 gboolean initial = FALSE;
940 settings_sizes = get_settings_sizes (settings, &initial);
943 icon_sizes_init_for_settings (settings);
945 if (size < settings_sizes->len)
947 SettingsIconSize *settings_size;
949 settings_size = &g_array_index (settings_sizes, SettingsIconSize, size);
951 width_for_settings = settings_size->width;
952 height_for_settings = settings_size->height;
957 *widthp = width_for_settings >= 0 ? width_for_settings : icon_sizes[size].width;
960 *heightp = height_for_settings >= 0 ? height_for_settings : icon_sizes[size].height;
966 * gtk_icon_size_lookup_for_settings:
967 * @settings: a #GtkSettings object, used to determine
968 * which set of user preferences to used.
969 * @size: (type int): an icon size
970 * @width: (out): location to store icon width
971 * @height: (out): location to store icon height
973 * Obtains the pixel size of a semantic icon size, possibly
974 * modified by user preferences for a particular
975 * #GtkSettings. Normally @size would be
976 * #GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_BUTTON, etc. This function
977 * isn't normally needed, gtk_widget_render_icon_pixbuf() is the usual
978 * way to get an icon for rendering, then just look at the size of
979 * the rendered pixbuf. The rendered pixbuf may not even correspond to
980 * the width/height returned by gtk_icon_size_lookup(), because themes
981 * are free to render the pixbuf however they like, including changing
984 * Return value: %TRUE if @size was a valid size
989 gtk_icon_size_lookup_for_settings (GtkSettings *settings,
994 g_return_val_if_fail (GTK_IS_SETTINGS (settings), FALSE);
996 return icon_size_lookup_intern (settings, size, width, height);
1000 * gtk_icon_size_lookup:
1001 * @size: (type int): an icon size
1002 * @width: (out): location to store icon width
1003 * @height: (out): location to store icon height
1005 * Obtains the pixel size of a semantic icon size, possibly
1006 * modified by user preferences for the default #GtkSettings.
1007 * (See gtk_icon_size_lookup_for_settings().)
1008 * Normally @size would be
1009 * #GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_BUTTON, etc. This function
1010 * isn't normally needed, gtk_widget_render_icon_pixbuf() is the usual
1011 * way to get an icon for rendering, then just look at the size of
1012 * the rendered pixbuf. The rendered pixbuf may not even correspond to
1013 * the width/height returned by gtk_icon_size_lookup(), because themes
1014 * are free to render the pixbuf however they like, including changing
1017 * Return value: %TRUE if @size was a valid size
1020 gtk_icon_size_lookup (GtkIconSize size,
1024 GTK_NOTE (MULTIHEAD,
1025 g_warning ("gtk_icon_size_lookup ()) is not multihead safe"));
1027 return gtk_icon_size_lookup_for_settings (gtk_settings_get_default (),
1028 size, widthp, heightp);
1032 icon_size_register_intern (const gchar *name,
1036 IconAlias *old_alias;
1041 old_alias = g_hash_table_lookup (icon_aliases, name);
1042 if (old_alias && icon_sizes[old_alias->target].width > 0)
1044 g_warning ("Icon size name '%s' already exists", name);
1045 return GTK_ICON_SIZE_INVALID;
1050 size = old_alias->target;
1054 if (icon_sizes_used == icon_sizes_allocated)
1056 icon_sizes_allocated *= 2;
1057 icon_sizes = g_renew (IconSize, icon_sizes, icon_sizes_allocated);
1060 size = icon_sizes_used++;
1062 /* alias to self. */
1063 gtk_icon_size_register_alias (name, size);
1065 icon_sizes[size].size = size;
1066 icon_sizes[size].name = g_strdup (name);
1069 icon_sizes[size].width = width;
1070 icon_sizes[size].height = height;
1076 * gtk_icon_size_register:
1077 * @name: name of the icon size
1078 * @width: the icon width
1079 * @height: the icon height
1081 * Registers a new icon size, along the same lines as #GTK_ICON_SIZE_MENU,
1082 * etc. Returns the integer value for the size.
1084 * Returns: (type int): integer value representing the size
1087 gtk_icon_size_register (const gchar *name,
1091 g_return_val_if_fail (name != NULL, 0);
1092 g_return_val_if_fail (width > 0, 0);
1093 g_return_val_if_fail (height > 0, 0);
1095 return icon_size_register_intern (name, width, height);
1099 * gtk_icon_size_register_alias:
1100 * @alias: an alias for @target
1101 * @target: (type int): an existing icon size
1103 * Registers @alias as another name for @target.
1104 * So calling gtk_icon_size_from_name() with @alias as argument
1105 * will return @target.
1108 gtk_icon_size_register_alias (const gchar *alias,
1113 g_return_if_fail (alias != NULL);
1117 if (!icon_size_lookup_intern (NULL, target, NULL, NULL))
1118 g_warning ("gtk_icon_size_register_alias: Icon size %u does not exist", target);
1120 ia = g_hash_table_lookup (icon_aliases, alias);
1123 if (icon_sizes[ia->target].width > 0)
1125 g_warning ("gtk_icon_size_register_alias: Icon size name '%s' already exists", alias);
1129 ia->target = target;
1134 ia = g_new (IconAlias, 1);
1135 ia->name = g_strdup (alias);
1136 ia->target = target;
1138 g_hash_table_insert (icon_aliases, ia->name, ia);
1143 * gtk_icon_size_from_name:
1144 * @name: the name to look up.
1146 * Looks up the icon size associated with @name.
1148 * Return value: (type int): the icon size
1151 gtk_icon_size_from_name (const gchar *name)
1157 ia = g_hash_table_lookup (icon_aliases, name);
1159 if (ia && icon_sizes[ia->target].width > 0)
1162 return GTK_ICON_SIZE_INVALID;
1166 * gtk_icon_size_get_name:
1167 * @size: (type int): a #GtkIconSize.
1169 * Gets the canonical name of the given icon size. The returned string
1170 * is statically allocated and should not be freed.
1172 * Returns: the name of the given icon size.
1175 gtk_icon_size_get_name (GtkIconSize size)
1177 if (size >= icon_sizes_used)
1180 return icon_sizes[size].name;
1183 /************************************************************/
1188 static GdkPixbuf *find_in_cache (GtkIconSet *icon_set,
1189 GtkStyleContext *style_context,
1190 GtkTextDirection direction,
1193 static void add_to_cache (GtkIconSet *icon_set,
1194 GtkStyleContext *style_context,
1195 GtkTextDirection direction,
1199 /* Clear icon set contents, drop references to all contained
1200 * GdkPixbuf objects and forget all GtkIconSources. Used to
1201 * recycle an icon set.
1203 static void clear_cache (GtkIconSet *icon_set,
1204 gboolean style_detach);
1205 static GSList* copy_cache (GtkIconSet *icon_set,
1206 GtkIconSet *copy_recipient);
1207 static void attach_to_style (GtkIconSet *icon_set,
1208 GtkStyleContext *style_context);
1209 static void detach_from_style (GtkIconSet *icon_set,
1210 GtkStyleContext *style_context);
1211 static void style_dnotify (gpointer data);
1219 /* Cache of the last few rendered versions of the icon. */
1227 static guint cache_serial = 0;
1232 * Creates a new #GtkIconSet. A #GtkIconSet represents a single icon
1233 * in various sizes and widget states. It can provide a #GdkPixbuf
1234 * for a given size and state on request, and automatically caches
1235 * some of the rendered #GdkPixbuf objects.
1237 * Normally you would use gtk_widget_render_icon_pixbuf() instead of
1238 * using #GtkIconSet directly. The one case where you'd use
1239 * #GtkIconSet is to create application-specific icon sets to place in
1240 * a #GtkIconFactory.
1242 * Return value: a new #GtkIconSet
1245 gtk_icon_set_new (void)
1247 GtkIconSet *icon_set;
1249 icon_set = g_new (GtkIconSet, 1);
1251 icon_set->ref_count = 1;
1252 icon_set->sources = NULL;
1253 icon_set->cache = NULL;
1254 icon_set->cache_size = 0;
1255 icon_set->cache_serial = cache_serial;
1261 * gtk_icon_set_new_from_pixbuf:
1262 * @pixbuf: a #GdkPixbuf
1264 * Creates a new #GtkIconSet with @pixbuf as the default/fallback
1265 * source image. If you don't add any additional #GtkIconSource to the
1266 * icon set, all variants of the icon will be created from @pixbuf,
1267 * using scaling, pixelation, etc. as required to adjust the icon size
1268 * or make the icon look insensitive/prelighted.
1270 * Return value: a new #GtkIconSet
1273 gtk_icon_set_new_from_pixbuf (GdkPixbuf *pixbuf)
1277 GtkIconSource source = GTK_ICON_SOURCE_INIT (TRUE, TRUE, TRUE);
1279 g_return_val_if_fail (pixbuf != NULL, NULL);
1281 set = gtk_icon_set_new ();
1283 gtk_icon_source_set_pixbuf (&source, pixbuf);
1284 gtk_icon_set_add_source (set, &source);
1285 gtk_icon_source_set_pixbuf (&source, NULL);
1293 * @icon_set: a #GtkIconSet.
1295 * Increments the reference count on @icon_set.
1297 * Return value: @icon_set.
1300 gtk_icon_set_ref (GtkIconSet *icon_set)
1302 g_return_val_if_fail (icon_set != NULL, NULL);
1303 g_return_val_if_fail (icon_set->ref_count > 0, NULL);
1305 icon_set->ref_count += 1;
1311 * gtk_icon_set_unref:
1312 * @icon_set: a #GtkIconSet
1314 * Decrements the reference count on @icon_set, and frees memory
1315 * if the reference count reaches 0.
1318 gtk_icon_set_unref (GtkIconSet *icon_set)
1320 g_return_if_fail (icon_set != NULL);
1321 g_return_if_fail (icon_set->ref_count > 0);
1323 icon_set->ref_count -= 1;
1325 if (icon_set->ref_count == 0)
1327 GSList *tmp_list = icon_set->sources;
1328 while (tmp_list != NULL)
1330 gtk_icon_source_free (tmp_list->data);
1332 tmp_list = g_slist_next (tmp_list);
1334 g_slist_free (icon_set->sources);
1336 clear_cache (icon_set, TRUE);
1342 G_DEFINE_BOXED_TYPE (GtkIconSet, gtk_icon_set,
1347 * gtk_icon_set_copy:
1348 * @icon_set: a #GtkIconSet
1350 * Copies @icon_set by value.
1352 * Return value: a new #GtkIconSet identical to the first.
1355 gtk_icon_set_copy (GtkIconSet *icon_set)
1360 copy = gtk_icon_set_new ();
1362 tmp_list = icon_set->sources;
1363 while (tmp_list != NULL)
1365 copy->sources = g_slist_prepend (copy->sources,
1366 gtk_icon_source_copy (tmp_list->data));
1368 tmp_list = g_slist_next (tmp_list);
1371 copy->sources = g_slist_reverse (copy->sources);
1373 copy->cache = copy_cache (icon_set, copy);
1374 copy->cache_size = icon_set->cache_size;
1375 copy->cache_serial = icon_set->cache_serial;
1381 sizes_equivalent (GtkIconSize lhs,
1384 /* We used to consider sizes equivalent if they were
1385 * the same pixel size, but we don't have the GtkSettings
1386 * here, so we can't do that. Plus, it's not clear that
1387 * it is right... it was just a workaround for the fact
1388 * that we register icons by logical size, not pixel size.
1394 gint r_w, r_h, l_w, l_h;
1396 icon_size_lookup_intern (NULL, rhs, &r_w, &r_h);
1397 icon_size_lookup_intern (NULL, lhs, &l_w, &l_h);
1399 return r_w == l_w && r_h == l_h;
1403 static GtkIconSource *
1404 find_best_matching_source (GtkIconSet *icon_set,
1405 GtkTextDirection direction,
1410 GtkIconSource *source;
1413 /* We need to find the best icon source. Direction matters more
1414 * than state, state matters more than size. icon_set->sources
1415 * is sorted according to wildness, so if we take the first
1416 * match we find it will be the least-wild match (if there are
1417 * multiple matches for a given "wildness" then the RC file contained
1418 * dumb stuff, and we end up with an arbitrary matching source)
1422 tmp_list = icon_set->sources;
1423 while (tmp_list != NULL)
1425 GtkIconSource *s = tmp_list->data;
1427 if ((s->any_direction || (s->direction == direction)) &&
1428 (s->any_state || (s->state == state)) &&
1429 (s->any_size || size == (GtkIconSize)-1 || (sizes_equivalent (size, s->size))))
1431 if (!g_slist_find (failed, s))
1438 tmp_list = g_slist_next (tmp_list);
1445 ensure_filename_pixbuf (GtkIconSet *icon_set,
1446 GtkIconSource *source)
1448 if (source->filename_pixbuf == NULL)
1450 GError *error = NULL;
1452 source->filename_pixbuf = gdk_pixbuf_new_from_file (source->source.filename, &error);
1454 if (source->filename_pixbuf == NULL)
1456 /* Remove this icon source so we don't keep trying to
1459 g_warning ("Error loading icon: %s", error->message);
1460 g_error_free (error);
1462 icon_set->sources = g_slist_remove (icon_set->sources, source);
1464 gtk_icon_source_free (source);
1474 render_icon_name_pixbuf (GtkIconSource *icon_source,
1475 GtkStyleContext *context,
1479 GdkPixbuf *tmp_pixbuf;
1480 GtkIconSource tmp_source;
1482 GtkIconTheme *icon_theme;
1483 GtkSettings *settings;
1484 gint width, height, pixel_size;
1485 gint *sizes, *s, dist;
1486 GError *error = NULL;
1488 screen = gtk_style_context_get_screen (context);
1489 icon_theme = gtk_icon_theme_get_for_screen (screen);
1490 settings = gtk_settings_get_for_screen (screen);
1492 if (!gtk_icon_size_lookup_for_settings (settings, size, &width, &height))
1494 if (size == (GtkIconSize)-1)
1496 /* Find an available size close to 48 */
1497 sizes = gtk_icon_theme_get_icon_sizes (icon_theme, icon_source->source.icon_name);
1499 width = height = 48;
1500 for (s = sizes; *s; s++)
1504 width = height = 48;
1511 width = height = *s;
1519 width = height = *s;
1529 g_warning ("Invalid icon size %u\n", size);
1530 width = height = 24;
1534 pixel_size = MIN (width, height);
1536 if (icon_source->direction != GTK_TEXT_DIR_NONE)
1538 gchar *suffix[3] = { NULL, "-ltr", "-rtl" };
1542 names[0] = g_strconcat (icon_source->source.icon_name, suffix[icon_source->direction], NULL);
1543 names[1] = icon_source->source.icon_name;
1546 info = gtk_icon_theme_choose_icon (icon_theme,
1547 (const char **) names,
1548 pixel_size, GTK_ICON_LOOKUP_USE_BUILTIN);
1552 tmp_pixbuf = gtk_icon_info_load_icon (info, &error);
1553 gtk_icon_info_free (info);
1560 tmp_pixbuf = gtk_icon_theme_load_icon (icon_theme,
1561 icon_source->source.icon_name,
1568 g_warning ("Error loading theme icon '%s' for stock: %s",
1569 icon_source->source.icon_name, error ? error->message : "");
1571 g_error_free (error);
1575 tmp_source = *icon_source;
1576 tmp_source.type = GTK_ICON_SOURCE_PIXBUF;
1577 tmp_source.source.pixbuf = tmp_pixbuf;
1579 pixbuf = gtk_render_icon_pixbuf (context, &tmp_source, -1);
1582 g_warning ("Failed to render icon");
1584 g_object_unref (tmp_pixbuf);
1590 find_and_render_icon_source (GtkIconSet *icon_set,
1591 GtkStyleContext *context,
1592 GtkTextDirection direction,
1596 GSList *failed = NULL;
1597 GdkPixbuf *pixbuf = NULL;
1599 /* We treat failure in two different ways:
1601 * A) If loading a source that specifies a filename fails,
1602 * we treat that as permanent, and remove the source
1603 * from the GtkIconSet. (in ensure_filename_pixbuf ()
1604 * B) If loading a themed icon fails, or scaling an icon
1605 * fails, we treat that as transient and will try
1606 * again next time the icon falls out of the cache
1607 * and we need to recreate it.
1609 while (pixbuf == NULL)
1611 GtkIconSource *source = find_best_matching_source (icon_set, direction, state, size, failed);
1616 switch (source->type)
1618 case GTK_ICON_SOURCE_FILENAME:
1619 if (!ensure_filename_pixbuf (icon_set, source))
1622 case GTK_ICON_SOURCE_PIXBUF:
1623 pixbuf = gtk_render_icon_pixbuf (context, source, size);
1626 g_warning ("Failed to render icon");
1627 failed = g_slist_prepend (failed, source);
1630 case GTK_ICON_SOURCE_ICON_NAME:
1631 case GTK_ICON_SOURCE_STATIC_ICON_NAME:
1632 pixbuf = render_icon_name_pixbuf (source, context, size);
1634 failed = g_slist_prepend (failed, source);
1636 case GTK_ICON_SOURCE_EMPTY:
1637 g_assert_not_reached ();
1641 g_slist_free (failed);
1646 extern GtkIconCache *_builtin_cache;
1649 render_fallback_image (GtkStyleContext *context,
1650 GtkTextDirection direction,
1654 /* This icon can be used for any direction/state/size */
1655 static GtkIconSource fallback_source = GTK_ICON_SOURCE_INIT (TRUE, TRUE, TRUE);
1657 if (fallback_source.type == GTK_ICON_SOURCE_EMPTY)
1662 _gtk_icon_theme_ensure_builtin_cache ();
1664 index = _gtk_icon_cache_get_directory_index (_builtin_cache, "24");
1665 pixbuf = _gtk_icon_cache_get_icon (_builtin_cache, "image-missing", index);
1667 g_return_val_if_fail(pixbuf != NULL, NULL);
1669 gtk_icon_source_set_pixbuf (&fallback_source, pixbuf);
1670 g_object_unref (pixbuf);
1673 return gtk_render_icon_pixbuf (context, &fallback_source, size);
1677 * gtk_icon_set_render_icon_pixbuf:
1678 * @icon_set: a #GtkIconSet
1679 * @context: a #GtkStyleContext
1680 * @size: (type int): icon size. A size of (GtkIconSize)-1
1681 * means render at the size of the source and don't scale.
1683 * Renders an icon using gtk_render_icon_pixbuf(). In most cases,
1684 * gtk_widget_render_icon_pixbuf() is better, since it automatically provides
1685 * most of the arguments from the current widget settings. This
1686 * function never returns %NULL; if the icon can't be rendered
1687 * (perhaps because an image file fails to load), a default "missing
1688 * image" icon will be returned instead.
1690 * Return value: (transfer full): a #GdkPixbuf to be displayed
1695 gtk_icon_set_render_icon_pixbuf (GtkIconSet *icon_set,
1696 GtkStyleContext *context,
1699 GdkPixbuf *icon = NULL;
1700 GtkStateFlags flags = 0;
1702 GtkTextDirection direction;
1704 g_return_val_if_fail (icon_set != NULL, NULL);
1705 g_return_val_if_fail (GTK_IS_STYLE_CONTEXT (context), NULL);
1707 flags = gtk_style_context_get_state (context);
1708 if (flags & GTK_STATE_FLAG_INSENSITIVE)
1709 state = GTK_STATE_INSENSITIVE;
1710 else if (flags & GTK_STATE_FLAG_PRELIGHT)
1711 state = GTK_STATE_PRELIGHT;
1713 state = GTK_STATE_NORMAL;
1715 direction = gtk_style_context_get_direction (context);
1717 if (icon_set->sources)
1719 icon = find_in_cache (icon_set, context, direction, state, size);
1722 g_object_ref (icon);
1727 if (icon_set->sources)
1728 icon = find_and_render_icon_source (icon_set, context, direction, state, size);
1731 icon = render_fallback_image (context, direction, state, size);
1733 add_to_cache (icon_set, context, direction, state, size, icon);
1739 * gtk_icon_set_render_icon:
1740 * @icon_set: a #GtkIconSet
1741 * @style: (allow-none): a #GtkStyle associated with @widget, or %NULL
1742 * @direction: text direction
1743 * @state: widget state
1744 * @size: (type int): icon size. A size of (GtkIconSize)-1
1745 * means render at the size of the source and don't scale.
1746 * @widget: (allow-none): widget that will display the icon, or %NULL.
1747 * The only use that is typically made of this
1748 * is to determine the appropriate #GdkScreen.
1749 * @detail: (allow-none): detail to pass to the theme engine, or %NULL.
1750 * Note that passing a detail of anything but %NULL
1751 * will disable caching.
1753 * Renders an icon using gtk_style_render_icon(). In most cases,
1754 * gtk_widget_render_icon() is better, since it automatically provides
1755 * most of the arguments from the current widget settings. This
1756 * function never returns %NULL; if the icon can't be rendered
1757 * (perhaps because an image file fails to load), a default "missing
1758 * image" icon will be returned instead.
1760 * Return value: (transfer full): a #GdkPixbuf to be displayed
1762 * Deprecated: 3.0: Use gtk_icon_set_render_icon_pixbuf() instead
1765 gtk_icon_set_render_icon (GtkIconSet *icon_set,
1767 GtkTextDirection direction,
1774 GtkStyleContext *context = NULL;
1775 GtkStateFlags flags = 0;
1777 g_return_val_if_fail (icon_set != NULL, NULL);
1778 g_return_val_if_fail (style == NULL || GTK_IS_STYLE (style), NULL);
1780 if (style && gtk_style_has_context (style))
1782 g_object_get (style, "context", &context, NULL);
1783 /* g_object_get returns a refed object */
1785 g_object_unref (context);
1789 context = gtk_widget_get_style_context (widget);
1793 return render_fallback_image (context, direction, state, size);
1795 gtk_style_context_save (context);
1799 case GTK_STATE_PRELIGHT:
1800 flags |= GTK_STATE_FLAG_PRELIGHT;
1802 case GTK_STATE_INSENSITIVE:
1803 flags |= GTK_STATE_FLAG_INSENSITIVE;
1809 gtk_style_context_set_state (context, flags);
1810 gtk_style_context_set_direction (context, direction);
1812 icon = gtk_icon_set_render_icon_pixbuf (icon_set, context, size);
1814 gtk_style_context_restore (context);
1819 /* Order sources by their "wildness", so that "wilder" sources are
1820 * greater than "specific" sources; for determining ordering,
1821 * direction beats state beats size.
1825 icon_source_compare (gconstpointer ap, gconstpointer bp)
1827 const GtkIconSource *a = ap;
1828 const GtkIconSource *b = bp;
1830 if (!a->any_direction && b->any_direction)
1832 else if (a->any_direction && !b->any_direction)
1834 else if (!a->any_state && b->any_state)
1836 else if (a->any_state && !b->any_state)
1838 else if (!a->any_size && b->any_size)
1840 else if (a->any_size && !b->any_size)
1847 * gtk_icon_set_add_source:
1848 * @icon_set: a #GtkIconSet
1849 * @source: a #GtkIconSource
1851 * Icon sets have a list of #GtkIconSource, which they use as base
1852 * icons for rendering icons in different states and sizes. Icons are
1853 * scaled, made to look insensitive, etc. in
1854 * gtk_icon_set_render_icon(), but #GtkIconSet needs base images to
1855 * work with. The base images and when to use them are described by
1858 * This function copies @source, so you can reuse the same source immediately
1859 * without affecting the icon set.
1861 * An example of when you'd use this function: a web browser's "Back
1862 * to Previous Page" icon might point in a different direction in
1863 * Hebrew and in English; it might look different when insensitive;
1864 * and it might change size depending on toolbar mode (small/large
1865 * icons). So a single icon set would contain all those variants of
1866 * the icon, and you might add a separate source for each one.
1868 * You should nearly always add a "default" icon source with all
1869 * fields wildcarded, which will be used as a fallback if no more
1870 * specific source matches. #GtkIconSet always prefers more specific
1871 * icon sources to more generic icon sources. The order in which you
1872 * add the sources to the icon set does not matter.
1874 * gtk_icon_set_new_from_pixbuf() creates a new icon set with a
1875 * default icon source based on the given pixbuf.
1878 gtk_icon_set_add_source (GtkIconSet *icon_set,
1879 const GtkIconSource *source)
1881 g_return_if_fail (icon_set != NULL);
1882 g_return_if_fail (source != NULL);
1884 if (source->type == GTK_ICON_SOURCE_EMPTY)
1886 g_warning ("Useless empty GtkIconSource");
1890 icon_set->sources = g_slist_insert_sorted (icon_set->sources,
1891 gtk_icon_source_copy (source),
1892 icon_source_compare);
1896 * gtk_icon_set_get_sizes:
1897 * @icon_set: a #GtkIconSet
1898 * @sizes: (array length=n_sizes) (out) (type int): return location
1899 * for array of sizes
1900 * @n_sizes: location to store number of elements in returned array
1902 * Obtains a list of icon sizes this icon set can render. The returned
1903 * array must be freed with g_free().
1906 gtk_icon_set_get_sizes (GtkIconSet *icon_set,
1907 GtkIconSize **sizes,
1911 gboolean all_sizes = FALSE;
1912 GSList *specifics = NULL;
1914 g_return_if_fail (icon_set != NULL);
1915 g_return_if_fail (sizes != NULL);
1916 g_return_if_fail (n_sizes != NULL);
1918 tmp_list = icon_set->sources;
1919 while (tmp_list != NULL)
1921 GtkIconSource *source;
1923 source = tmp_list->data;
1925 if (source->any_size)
1931 specifics = g_slist_prepend (specifics, GINT_TO_POINTER (source->size));
1933 tmp_list = g_slist_next (tmp_list);
1938 /* Need to find out what sizes exist */
1943 *sizes = g_new (GtkIconSize, icon_sizes_used);
1944 *n_sizes = icon_sizes_used - 1;
1947 while (i < icon_sizes_used)
1949 (*sizes)[i - 1] = icon_sizes[i].size;
1957 *n_sizes = g_slist_length (specifics);
1958 *sizes = g_new (GtkIconSize, *n_sizes);
1961 tmp_list = specifics;
1962 while (tmp_list != NULL)
1964 (*sizes)[i] = GPOINTER_TO_INT (tmp_list->data);
1967 tmp_list = g_slist_next (tmp_list);
1971 g_slist_free (specifics);
1976 * gtk_icon_source_new:
1978 * Creates a new #GtkIconSource. A #GtkIconSource contains a #GdkPixbuf (or
1979 * image filename) that serves as the base image for one or more of the
1980 * icons in a #GtkIconSet, along with a specification for which icons in the
1981 * icon set will be based on that pixbuf or image file. An icon set contains
1982 * a set of icons that represent "the same" logical concept in different states,
1983 * different global text directions, and different sizes.
1985 * So for example a web browser's "Back to Previous Page" icon might
1986 * point in a different direction in Hebrew and in English; it might
1987 * look different when insensitive; and it might change size depending
1988 * on toolbar mode (small/large icons). So a single icon set would
1989 * contain all those variants of the icon. #GtkIconSet contains a list
1990 * of #GtkIconSource from which it can derive specific icon variants in
1993 * In the simplest case, #GtkIconSet contains one source pixbuf from
1994 * which it derives all variants. The convenience function
1995 * gtk_icon_set_new_from_pixbuf() handles this case; if you only have
1996 * one source pixbuf, just use that function.
1998 * If you want to use a different base pixbuf for different icon
1999 * variants, you create multiple icon sources, mark which variants
2000 * they'll be used to create, and add them to the icon set with
2001 * gtk_icon_set_add_source().
2003 * By default, the icon source has all parameters wildcarded. That is,
2004 * the icon source will be used as the base icon for any desired text
2005 * direction, widget state, or icon size.
2007 * Return value: a new #GtkIconSource
2010 gtk_icon_source_new (void)
2014 src = g_new0 (GtkIconSource, 1);
2016 src->direction = GTK_TEXT_DIR_NONE;
2017 src->size = GTK_ICON_SIZE_INVALID;
2018 src->state = GTK_STATE_NORMAL;
2020 src->any_direction = TRUE;
2021 src->any_state = TRUE;
2022 src->any_size = TRUE;
2028 * gtk_icon_source_copy:
2029 * @source: a #GtkIconSource
2031 * Creates a copy of @source; mostly useful for language bindings.
2033 * Return value: a new #GtkIconSource
2036 gtk_icon_source_copy (const GtkIconSource *source)
2038 GtkIconSource *copy;
2040 g_return_val_if_fail (source != NULL, NULL);
2042 copy = g_new (GtkIconSource, 1);
2048 case GTK_ICON_SOURCE_EMPTY:
2049 case GTK_ICON_SOURCE_STATIC_ICON_NAME:
2051 case GTK_ICON_SOURCE_ICON_NAME:
2052 copy->source.icon_name = g_strdup (copy->source.icon_name);
2054 case GTK_ICON_SOURCE_FILENAME:
2055 copy->source.filename = g_strdup (copy->source.filename);
2056 if (copy->filename_pixbuf)
2057 g_object_ref (copy->filename_pixbuf);
2059 case GTK_ICON_SOURCE_PIXBUF:
2060 g_object_ref (copy->source.pixbuf);
2063 g_assert_not_reached();
2070 * gtk_icon_source_free:
2071 * @source: a #GtkIconSource
2073 * Frees a dynamically-allocated icon source, along with its
2074 * filename, size, and pixbuf fields if those are not %NULL.
2077 gtk_icon_source_free (GtkIconSource *source)
2079 g_return_if_fail (source != NULL);
2081 icon_source_clear (source);
2085 G_DEFINE_BOXED_TYPE (GtkIconSource, gtk_icon_source,
2086 gtk_icon_source_copy,
2087 gtk_icon_source_free)
2090 icon_source_clear (GtkIconSource *source)
2092 switch (source->type)
2094 case GTK_ICON_SOURCE_EMPTY:
2096 case GTK_ICON_SOURCE_ICON_NAME:
2097 g_free (source->source.icon_name);
2099 case GTK_ICON_SOURCE_STATIC_ICON_NAME:
2100 source->source.icon_name = NULL;
2102 case GTK_ICON_SOURCE_FILENAME:
2103 g_free (source->source.filename);
2104 source->source.filename = NULL;
2105 if (source->filename_pixbuf)
2106 g_object_unref (source->filename_pixbuf);
2107 source->filename_pixbuf = NULL;
2109 case GTK_ICON_SOURCE_PIXBUF:
2110 g_object_unref (source->source.pixbuf);
2111 source->source.pixbuf = NULL;
2114 g_assert_not_reached();
2117 source->type = GTK_ICON_SOURCE_EMPTY;
2121 * gtk_icon_source_set_filename:
2122 * @source: a #GtkIconSource
2123 * @filename: (type filename): image file to use
2125 * Sets the name of an image file to use as a base image when creating
2126 * icon variants for #GtkIconSet. The filename must be absolute.
2129 gtk_icon_source_set_filename (GtkIconSource *source,
2130 const gchar *filename)
2132 g_return_if_fail (source != NULL);
2133 g_return_if_fail (filename == NULL || g_path_is_absolute (filename));
2135 if (source->type == GTK_ICON_SOURCE_FILENAME &&
2136 source->source.filename == filename)
2139 icon_source_clear (source);
2141 if (filename != NULL)
2143 source->type = GTK_ICON_SOURCE_FILENAME;
2144 source->source.filename = g_strdup (filename);
2149 * gtk_icon_source_set_icon_name:
2150 * @source: a #GtkIconSource
2151 * @icon_name: (allow-none): name of icon to use
2153 * Sets the name of an icon to look up in the current icon theme
2154 * to use as a base image when creating icon variants for #GtkIconSet.
2157 gtk_icon_source_set_icon_name (GtkIconSource *source,
2158 const gchar *icon_name)
2160 g_return_if_fail (source != NULL);
2162 if (source->type == GTK_ICON_SOURCE_ICON_NAME &&
2163 source->source.icon_name == icon_name)
2166 icon_source_clear (source);
2168 if (icon_name != NULL)
2170 source->type = GTK_ICON_SOURCE_ICON_NAME;
2171 source->source.icon_name = g_strdup (icon_name);
2176 * gtk_icon_source_set_pixbuf:
2177 * @source: a #GtkIconSource
2178 * @pixbuf: pixbuf to use as a source
2180 * Sets a pixbuf to use as a base image when creating icon variants
2184 gtk_icon_source_set_pixbuf (GtkIconSource *source,
2187 g_return_if_fail (source != NULL);
2188 g_return_if_fail (pixbuf == NULL || GDK_IS_PIXBUF (pixbuf));
2190 if (source->type == GTK_ICON_SOURCE_PIXBUF &&
2191 source->source.pixbuf == pixbuf)
2194 icon_source_clear (source);
2198 source->type = GTK_ICON_SOURCE_PIXBUF;
2199 source->source.pixbuf = g_object_ref (pixbuf);
2204 * gtk_icon_source_get_filename:
2205 * @source: a #GtkIconSource
2207 * Retrieves the source filename, or %NULL if none is set. The
2208 * filename is not a copy, and should not be modified or expected to
2209 * persist beyond the lifetime of the icon source.
2211 * Return value: (type filename): image filename. This string must not
2212 * be modified or freed.
2215 gtk_icon_source_get_filename (const GtkIconSource *source)
2217 g_return_val_if_fail (source != NULL, NULL);
2219 if (source->type == GTK_ICON_SOURCE_FILENAME)
2220 return source->source.filename;
2226 * gtk_icon_source_get_icon_name:
2227 * @source: a #GtkIconSource
2229 * Retrieves the source icon name, or %NULL if none is set. The
2230 * icon_name is not a copy, and should not be modified or expected to
2231 * persist beyond the lifetime of the icon source.
2233 * Return value: icon name. This string must not be modified or freed.
2236 gtk_icon_source_get_icon_name (const GtkIconSource *source)
2238 g_return_val_if_fail (source != NULL, NULL);
2240 if (source->type == GTK_ICON_SOURCE_ICON_NAME ||
2241 source->type == GTK_ICON_SOURCE_STATIC_ICON_NAME)
2242 return source->source.icon_name;
2248 * gtk_icon_source_get_pixbuf:
2249 * @source: a #GtkIconSource
2251 * Retrieves the source pixbuf, or %NULL if none is set.
2252 * In addition, if a filename source is in use, this
2253 * function in some cases will return the pixbuf from
2254 * loaded from the filename. This is, for example, true
2255 * for the GtkIconSource passed to the GtkStyle::render_icon()
2256 * virtual function. The reference count on the pixbuf is
2259 * Return value: (transfer none): source pixbuf
2262 gtk_icon_source_get_pixbuf (const GtkIconSource *source)
2264 g_return_val_if_fail (source != NULL, NULL);
2266 if (source->type == GTK_ICON_SOURCE_PIXBUF)
2267 return source->source.pixbuf;
2268 else if (source->type == GTK_ICON_SOURCE_FILENAME)
2269 return source->filename_pixbuf;
2275 * gtk_icon_source_set_direction_wildcarded:
2276 * @source: a #GtkIconSource
2277 * @setting: %TRUE to wildcard the text direction
2279 * If the text direction is wildcarded, this source can be used
2280 * as the base image for an icon in any #GtkTextDirection.
2281 * If the text direction is not wildcarded, then the
2282 * text direction the icon source applies to should be set
2283 * with gtk_icon_source_set_direction(), and the icon source
2284 * will only be used with that text direction.
2286 * #GtkIconSet prefers non-wildcarded sources (exact matches) over
2287 * wildcarded sources, and will use an exact match when possible.
2290 gtk_icon_source_set_direction_wildcarded (GtkIconSource *source,
2293 g_return_if_fail (source != NULL);
2295 source->any_direction = setting != FALSE;
2299 * gtk_icon_source_set_state_wildcarded:
2300 * @source: a #GtkIconSource
2301 * @setting: %TRUE to wildcard the widget state
2303 * If the widget state is wildcarded, this source can be used as the
2304 * base image for an icon in any #GtkStateType. If the widget state
2305 * is not wildcarded, then the state the source applies to should be
2306 * set with gtk_icon_source_set_state() and the icon source will
2307 * only be used with that specific state.
2309 * #GtkIconSet prefers non-wildcarded sources (exact matches) over
2310 * wildcarded sources, and will use an exact match when possible.
2312 * #GtkIconSet will normally transform wildcarded source images to
2313 * produce an appropriate icon for a given state, for example
2314 * lightening an image on prelight, but will not modify source images
2315 * that match exactly.
2318 gtk_icon_source_set_state_wildcarded (GtkIconSource *source,
2321 g_return_if_fail (source != NULL);
2323 source->any_state = setting != FALSE;
2328 * gtk_icon_source_set_size_wildcarded:
2329 * @source: a #GtkIconSource
2330 * @setting: %TRUE to wildcard the widget state
2332 * If the icon size is wildcarded, this source can be used as the base
2333 * image for an icon of any size. If the size is not wildcarded, then
2334 * the size the source applies to should be set with
2335 * gtk_icon_source_set_size() and the icon source will only be used
2336 * with that specific size.
2338 * #GtkIconSet prefers non-wildcarded sources (exact matches) over
2339 * wildcarded sources, and will use an exact match when possible.
2341 * #GtkIconSet will normally scale wildcarded source images to produce
2342 * an appropriate icon at a given size, but will not change the size
2343 * of source images that match exactly.
2346 gtk_icon_source_set_size_wildcarded (GtkIconSource *source,
2349 g_return_if_fail (source != NULL);
2351 source->any_size = setting != FALSE;
2355 * gtk_icon_source_get_size_wildcarded:
2356 * @source: a #GtkIconSource
2358 * Gets the value set by gtk_icon_source_set_size_wildcarded().
2360 * Return value: %TRUE if this icon source is a base for any icon size variant
2363 gtk_icon_source_get_size_wildcarded (const GtkIconSource *source)
2365 g_return_val_if_fail (source != NULL, TRUE);
2367 return source->any_size;
2371 * gtk_icon_source_get_state_wildcarded:
2372 * @source: a #GtkIconSource
2374 * Gets the value set by gtk_icon_source_set_state_wildcarded().
2376 * Return value: %TRUE if this icon source is a base for any widget state variant
2379 gtk_icon_source_get_state_wildcarded (const GtkIconSource *source)
2381 g_return_val_if_fail (source != NULL, TRUE);
2383 return source->any_state;
2387 * gtk_icon_source_get_direction_wildcarded:
2388 * @source: a #GtkIconSource
2390 * Gets the value set by gtk_icon_source_set_direction_wildcarded().
2392 * Return value: %TRUE if this icon source is a base for any text direction variant
2395 gtk_icon_source_get_direction_wildcarded (const GtkIconSource *source)
2397 g_return_val_if_fail (source != NULL, TRUE);
2399 return source->any_direction;
2403 * gtk_icon_source_set_direction:
2404 * @source: a #GtkIconSource
2405 * @direction: text direction this source applies to
2407 * Sets the text direction this icon source is intended to be used
2410 * Setting the text direction on an icon source makes no difference
2411 * if the text direction is wildcarded. Therefore, you should usually
2412 * call gtk_icon_source_set_direction_wildcarded() to un-wildcard it
2413 * in addition to calling this function.
2416 gtk_icon_source_set_direction (GtkIconSource *source,
2417 GtkTextDirection direction)
2419 g_return_if_fail (source != NULL);
2421 source->direction = direction;
2425 * gtk_icon_source_set_state:
2426 * @source: a #GtkIconSource
2427 * @state: widget state this source applies to
2429 * Sets the widget state this icon source is intended to be used
2432 * Setting the widget state on an icon source makes no difference
2433 * if the state is wildcarded. Therefore, you should usually
2434 * call gtk_icon_source_set_state_wildcarded() to un-wildcard it
2435 * in addition to calling this function.
2438 gtk_icon_source_set_state (GtkIconSource *source,
2441 g_return_if_fail (source != NULL);
2443 source->state = state;
2447 * gtk_icon_source_set_size:
2448 * @source: a #GtkIconSource
2449 * @size: (type int): icon size this source applies to
2451 * Sets the icon size this icon source is intended to be used
2454 * Setting the icon size on an icon source makes no difference
2455 * if the size is wildcarded. Therefore, you should usually
2456 * call gtk_icon_source_set_size_wildcarded() to un-wildcard it
2457 * in addition to calling this function.
2460 gtk_icon_source_set_size (GtkIconSource *source,
2463 g_return_if_fail (source != NULL);
2465 source->size = size;
2469 * gtk_icon_source_get_direction:
2470 * @source: a #GtkIconSource
2472 * Obtains the text direction this icon source applies to. The return
2473 * value is only useful/meaningful if the text direction is <emphasis>not</emphasis>
2476 * Return value: text direction this source matches
2479 gtk_icon_source_get_direction (const GtkIconSource *source)
2481 g_return_val_if_fail (source != NULL, 0);
2483 return source->direction;
2487 * gtk_icon_source_get_state:
2488 * @source: a #GtkIconSource
2490 * Obtains the widget state this icon source applies to. The return
2491 * value is only useful/meaningful if the widget state is <emphasis>not</emphasis>
2494 * Return value: widget state this source matches
2497 gtk_icon_source_get_state (const GtkIconSource *source)
2499 g_return_val_if_fail (source != NULL, 0);
2501 return source->state;
2505 * gtk_icon_source_get_size:
2506 * @source: a #GtkIconSource
2508 * Obtains the icon size this source applies to. The return value
2509 * is only useful/meaningful if the icon size is <emphasis>not</emphasis> wildcarded.
2511 * Return value: (type int): icon size this source matches.
2514 gtk_icon_source_get_size (const GtkIconSource *source)
2516 g_return_val_if_fail (source != NULL, 0);
2518 return source->size;
2521 #define NUM_CACHED_ICONS 8
2523 typedef struct _CachedIcon CachedIcon;
2527 /* These must all match to use the cached pixbuf.
2528 * If any don't match, we must re-render the pixbuf.
2530 GtkStyleContext *style;
2531 GtkTextDirection direction;
2539 ensure_cache_up_to_date (GtkIconSet *icon_set)
2541 if (icon_set->cache_serial != cache_serial)
2543 clear_cache (icon_set, TRUE);
2544 icon_set->cache_serial = cache_serial;
2549 cached_icon_free (CachedIcon *icon)
2551 g_object_unref (icon->pixbuf);
2552 g_object_unref (icon->style);
2558 find_in_cache (GtkIconSet *icon_set,
2559 GtkStyleContext *style_context,
2560 GtkTextDirection direction,
2567 ensure_cache_up_to_date (icon_set);
2570 tmp_list = icon_set->cache;
2571 while (tmp_list != NULL)
2573 CachedIcon *icon = tmp_list->data;
2575 if (icon->style == style_context &&
2576 icon->direction == direction &&
2577 icon->state == state &&
2578 (size == (GtkIconSize)-1 || icon->size == size))
2582 /* Move this icon to the front of the list. */
2583 prev->next = tmp_list->next;
2584 tmp_list->next = icon_set->cache;
2585 icon_set->cache = tmp_list;
2588 return icon->pixbuf;
2592 tmp_list = g_slist_next (tmp_list);
2599 add_to_cache (GtkIconSet *icon_set,
2600 GtkStyleContext *style_context,
2601 GtkTextDirection direction,
2608 ensure_cache_up_to_date (icon_set);
2610 g_object_ref (pixbuf);
2612 icon = g_new (CachedIcon, 1);
2613 icon_set->cache = g_slist_prepend (icon_set->cache, icon);
2614 icon_set->cache_size++;
2616 icon->style = g_object_ref (style_context);
2617 icon->direction = direction;
2618 icon->state = state;
2620 icon->pixbuf = pixbuf;
2621 attach_to_style (icon_set, icon->style);
2623 if (icon_set->cache_size >= NUM_CACHED_ICONS)
2625 /* Remove oldest item in the cache */
2628 tmp_list = icon_set->cache;
2630 /* Find next-to-last link */
2631 g_assert (NUM_CACHED_ICONS > 2);
2632 while (tmp_list->next->next)
2633 tmp_list = tmp_list->next;
2635 g_assert (tmp_list != NULL);
2636 g_assert (tmp_list->next != NULL);
2637 g_assert (tmp_list->next->next == NULL);
2639 /* Free the last icon */
2640 icon = tmp_list->next->data;
2642 g_slist_free (tmp_list->next);
2643 tmp_list->next = NULL;
2645 cached_icon_free (icon);
2650 clear_cache (GtkIconSet *icon_set,
2651 gboolean style_detach)
2653 GSList *cache, *tmp_list;
2654 GtkStyleContext *last_style = NULL;
2656 cache = icon_set->cache;
2657 icon_set->cache = NULL;
2658 icon_set->cache_size = 0;
2660 while (tmp_list != NULL)
2662 CachedIcon *icon = tmp_list->data;
2666 /* simple optimization for the case where the cache
2667 * contains contiguous icons from the same style.
2668 * it's safe to call detach_from_style more than
2669 * once on the same style though.
2671 if (last_style != icon->style)
2673 detach_from_style (icon_set, icon->style);
2674 last_style = icon->style;
2678 cached_icon_free (icon);
2680 tmp_list = g_slist_next (tmp_list);
2683 g_slist_free (cache);
2687 copy_cache (GtkIconSet *icon_set,
2688 GtkIconSet *copy_recipient)
2691 GSList *copy = NULL;
2693 ensure_cache_up_to_date (icon_set);
2695 tmp_list = icon_set->cache;
2696 while (tmp_list != NULL)
2698 CachedIcon *icon = tmp_list->data;
2699 CachedIcon *icon_copy = g_new (CachedIcon, 1);
2703 attach_to_style (copy_recipient, icon_copy->style);
2704 g_object_ref (icon_copy->style);
2706 g_object_ref (icon_copy->pixbuf);
2708 icon_copy->size = icon->size;
2710 copy = g_slist_prepend (copy, icon_copy);
2712 tmp_list = g_slist_next (tmp_list);
2715 return g_slist_reverse (copy);
2719 attach_to_style (GtkIconSet *icon_set,
2720 GtkStyleContext *style_context)
2724 table = g_object_get_qdata (G_OBJECT (style_context),
2725 g_quark_try_string ("gtk-style-icon-sets"));
2729 table = g_hash_table_new (NULL, NULL);
2730 g_object_set_qdata_full (G_OBJECT (style_context),
2731 g_quark_from_static_string ("gtk-style-icon-sets"),
2736 g_hash_table_insert (table, icon_set, icon_set);
2740 detach_from_style (GtkIconSet *icon_set,
2741 GtkStyleContext *style_context)
2745 table = g_object_get_qdata (G_OBJECT (style_context),
2746 g_quark_try_string ("gtk-style-icon-sets"));
2749 g_hash_table_remove (table, icon_set);
2753 iconsets_foreach (gpointer key,
2757 GtkIconSet *icon_set = key;
2759 /* We only need to remove cache entries for the given style;
2760 * but that complicates things because in destroy notify
2761 * we don't know which style got destroyed, and 95% of the
2762 * time all cache entries will have the same style,
2763 * so this is faster anyway.
2766 clear_cache (icon_set, FALSE);
2770 style_dnotify (gpointer data)
2772 GHashTable *table = data;
2774 g_hash_table_foreach (table, iconsets_foreach, NULL);
2776 g_hash_table_destroy (table);
2779 /* This allows the icon set to detect that its cache is out of date. */
2781 _gtk_icon_set_invalidate_caches (void)
2787 * _gtk_icon_factory_list_ids:
2789 * Gets all known IDs stored in an existing icon factory.
2790 * The strings in the returned list aren't copied.
2791 * The list itself should be freed.
2793 * Return value: List of ids in icon factories
2796 _gtk_icon_factory_list_ids (void)
2803 _gtk_icon_factory_ensure_default_icons ();
2805 tmp_list = all_icon_factories;
2806 while (tmp_list != NULL)
2809 GtkIconFactory *factory = GTK_ICON_FACTORY (tmp_list->data);
2810 GtkIconFactoryPrivate *priv = factory->priv;
2812 these_ids = g_hash_table_get_keys (priv->icons);
2814 ids = g_list_concat (ids, these_ids);
2816 tmp_list = g_slist_next (tmp_list);
2826 } IconFactoryParserData;
2832 GtkTextDirection direction;
2835 } IconSourceParserData;
2838 icon_source_start_element (GMarkupParseContext *context,
2839 const gchar *element_name,
2840 const gchar **names,
2841 const gchar **values,
2846 gchar *stock_id = NULL;
2847 gchar *filename = NULL;
2848 gchar *icon_name = NULL;
2850 gint direction = -1;
2852 IconFactoryParserData *parser_data;
2853 IconSourceParserData *source_data;
2855 GQuark error_domain;
2857 parser_data = (IconFactoryParserData*)user_data;
2859 if (!parser_data->in_source)
2861 if (strcmp (element_name, "sources") != 0)
2863 error_msg = g_strdup_printf ("Unexpected element %s, expected <sources>", element_name);
2864 error_domain = GTK_BUILDER_ERROR_INVALID_TAG;
2867 parser_data->in_source = TRUE;
2872 if (strcmp (element_name, "source") != 0)
2874 error_msg = g_strdup_printf ("Unexpected element %s, expected <source>", element_name);
2875 error_domain = GTK_BUILDER_ERROR_INVALID_TAG;
2880 for (i = 0; names[i]; i++)
2882 if (strcmp (names[i], "stock-id") == 0)
2883 stock_id = g_strdup (values[i]);
2884 else if (strcmp (names[i], "filename") == 0)
2885 filename = g_strdup (values[i]);
2886 else if (strcmp (names[i], "icon-name") == 0)
2887 icon_name = g_strdup (values[i]);
2888 else if (strcmp (names[i], "size") == 0)
2890 if (!_gtk_builder_enum_from_string (GTK_TYPE_ICON_SIZE,
2896 else if (strcmp (names[i], "direction") == 0)
2898 if (!_gtk_builder_enum_from_string (GTK_TYPE_TEXT_DIRECTION,
2904 else if (strcmp (names[i], "state") == 0)
2906 if (!_gtk_builder_enum_from_string (GTK_TYPE_STATE_TYPE,
2914 error_msg = g_strdup_printf ("'%s' is not a valid attribute of <%s>",
2915 names[i], "source");
2916 error_domain = GTK_BUILDER_ERROR_INVALID_ATTRIBUTE;
2923 error_msg = g_strdup_printf ("<source> requires a stock_id");
2924 error_domain = GTK_BUILDER_ERROR_MISSING_ATTRIBUTE;
2928 source_data = g_slice_new (IconSourceParserData);
2929 source_data->stock_id = stock_id;
2930 source_data->filename = filename;
2931 source_data->icon_name = icon_name;
2932 source_data->size = size;
2933 source_data->direction = direction;
2934 source_data->state = state;
2936 parser_data->sources = g_slist_prepend (parser_data->sources, source_data);
2942 gint line_number, char_number;
2944 g_markup_parse_context_get_position (context, &line_number, &char_number);
2946 tmp = g_strdup_printf ("%s:%d:%d %s", "input",
2947 line_number, char_number, error_msg);
2948 g_set_error_literal (error, GTK_BUILDER_ERROR, error_domain, tmp);
2957 static const GMarkupParser icon_source_parser =
2959 icon_source_start_element,
2963 gtk_icon_factory_buildable_custom_tag_start (GtkBuildable *buildable,
2964 GtkBuilder *builder,
2966 const gchar *tagname,
2967 GMarkupParser *parser,
2970 g_assert (buildable);
2972 if (strcmp (tagname, "sources") == 0)
2974 IconFactoryParserData *parser_data;
2976 parser_data = g_slice_new0 (IconFactoryParserData);
2977 *parser = icon_source_parser;
2978 *data = parser_data;
2985 gtk_icon_factory_buildable_custom_tag_end (GtkBuildable *buildable,
2986 GtkBuilder *builder,
2988 const gchar *tagname,
2989 gpointer *user_data)
2991 GtkIconFactory *icon_factory;
2993 icon_factory = GTK_ICON_FACTORY (buildable);
2995 if (strcmp (tagname, "sources") == 0)
2997 IconFactoryParserData *parser_data;
2998 GtkIconSource *icon_source;
2999 GtkIconSet *icon_set;
3002 parser_data = (IconFactoryParserData*)user_data;
3004 for (l = parser_data->sources; l; l = l->next)
3006 IconSourceParserData *source_data = l->data;
3008 icon_set = gtk_icon_factory_lookup (icon_factory, source_data->stock_id);
3011 icon_set = gtk_icon_set_new ();
3012 gtk_icon_factory_add (icon_factory, source_data->stock_id, icon_set);
3013 gtk_icon_set_unref (icon_set);
3016 icon_source = gtk_icon_source_new ();
3018 if (source_data->filename)
3021 filename = _gtk_builder_get_absolute_filename (builder, source_data->filename);
3022 gtk_icon_source_set_filename (icon_source, filename);
3025 if (source_data->icon_name)
3026 gtk_icon_source_set_icon_name (icon_source, source_data->icon_name);
3027 if (source_data->size != -1)
3029 gtk_icon_source_set_size (icon_source, source_data->size);
3030 gtk_icon_source_set_size_wildcarded (icon_source, FALSE);
3032 if (source_data->direction != -1)
3034 gtk_icon_source_set_direction (icon_source, source_data->direction);
3035 gtk_icon_source_set_direction_wildcarded (icon_source, FALSE);
3037 if (source_data->state != -1)
3039 gtk_icon_source_set_state (icon_source, source_data->state);
3040 gtk_icon_source_set_state_wildcarded (icon_source, FALSE);
3043 /* Inline source_add() to avoid creating a copy */
3044 g_assert (icon_source->type != GTK_ICON_SOURCE_EMPTY);
3045 icon_set->sources = g_slist_insert_sorted (icon_set->sources,
3047 icon_source_compare);
3049 g_free (source_data->stock_id);
3050 g_free (source_data->filename);
3051 g_free (source_data->icon_name);
3052 g_slice_free (IconSourceParserData, source_data);
3054 g_slist_free (parser_data->sources);
3055 g_slice_free (IconFactoryParserData, parser_data);
3057 /* TODO: Add an attribute/tag to prevent this.
3058 * Usually it's the right thing to do though.
3060 gtk_icon_factory_add_default (icon_factory);