1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1998, 2001 Tim Janik
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, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
32 #include "gtkaccelgroup.h"
33 #include "gtkaccelmap.h"
34 #include "gtkmain.h" /* For _gtk_boolean_handled_accumulator */
35 #include "gdk/gdkkeysyms.h"
36 #include "gtkmarshalers.h"
39 /* --- prototypes --- */
40 static void gtk_accel_group_class_init (GtkAccelGroupClass *class);
41 static void gtk_accel_group_init (GtkAccelGroup *accel_group);
42 static void gtk_accel_group_finalize (GObject *object);
45 /* --- variables --- */
46 static GObjectClass *parent_class = NULL;
47 static guint signal_accel_activate = 0;
48 static guint signal_accel_changed = 0;
49 static guint quark_acceleratable_groups = 0;
50 static guint default_accel_mod_mask = (GDK_SHIFT_MASK |
55 /* --- functions --- */
57 * gtk_accel_group_get_type:
58 * @returns: the type ID for accelerator groups.
61 gtk_accel_group_get_type (void)
63 static GType object_type = 0;
67 static const GTypeInfo object_info = {
68 sizeof (GtkAccelGroupClass),
70 (GBaseFinalizeFunc) NULL,
71 (GClassInitFunc) gtk_accel_group_class_init,
72 NULL, /* class_finalize */
73 NULL, /* class_data */
74 sizeof (GtkAccelGroup),
76 (GInstanceInitFunc) gtk_accel_group_init,
79 object_type = g_type_register_static (G_TYPE_OBJECT, "GtkAccelGroup",
87 gtk_accel_group_class_init (GtkAccelGroupClass *class)
89 GObjectClass *object_class = G_OBJECT_CLASS (class);
91 parent_class = g_type_class_peek_parent (class);
93 quark_acceleratable_groups = g_quark_from_static_string ("gtk-acceleratable-accel-groups");
95 object_class->finalize = gtk_accel_group_finalize;
97 class->accel_changed = NULL;
98 signal_accel_activate =
99 g_signal_new ("accel_activate",
100 G_OBJECT_CLASS_TYPE (class),
103 _gtk_boolean_handled_accumulator, NULL,
104 _gtk_marshal_BOOLEAN__OBJECT_UINT_FLAGS,
108 GDK_TYPE_MODIFIER_TYPE);
109 signal_accel_changed =
110 g_signal_new ("accel_changed",
111 G_OBJECT_CLASS_TYPE (class),
112 G_SIGNAL_RUN_FIRST | G_SIGNAL_DETAILED,
113 G_STRUCT_OFFSET (GtkAccelGroupClass, accel_changed),
115 _gtk_marshal_VOID__UINT_FLAGS_BOXED,
118 GDK_TYPE_MODIFIER_TYPE,
123 gtk_accel_group_finalize (GObject *object)
125 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (object);
128 for (i = 0; i < accel_group->n_accels; i++)
130 GtkAccelGroupEntry *entry = &accel_group->priv_accels[i];
132 if (entry->accel_path_quark)
134 const gchar *accel_path = g_quark_to_string (entry[i].accel_path_quark);
136 _gtk_accel_map_remove_group (accel_path, accel_group);
140 g_free (accel_group->priv_accels);
142 G_OBJECT_CLASS (parent_class)->finalize (object);
146 gtk_accel_group_init (GtkAccelGroup *accel_group)
148 accel_group->lock_count = 0;
149 accel_group->modifier_mask = gtk_accelerator_get_default_mod_mask ();
150 accel_group->acceleratables = NULL;
151 accel_group->n_accels = 0;
152 accel_group->priv_accels = NULL;
156 * gtk_accel_group_new:
157 * @returns: a new #GtkAccelGroup object
159 * Creates a new #GtkAccelGroup.
162 gtk_accel_group_new (void)
164 return g_object_new (GTK_TYPE_ACCEL_GROUP, NULL);
168 accel_group_weak_ref_detach (GSList *free_list,
169 GObject *stale_object)
173 for (slist = free_list; slist; slist = slist->next)
175 GtkAccelGroup *accel_group;
177 accel_group = slist->data;
178 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, stale_object);
179 g_object_unref (accel_group);
181 g_slist_free (free_list);
182 g_object_set_qdata (stale_object, quark_acceleratable_groups, NULL);
186 _gtk_accel_group_attach (GtkAccelGroup *accel_group,
191 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
192 g_return_if_fail (G_IS_OBJECT (object));
193 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) == NULL);
195 g_object_ref (accel_group);
196 accel_group->acceleratables = g_slist_prepend (accel_group->acceleratables, object);
197 slist = g_object_get_qdata (object, quark_acceleratable_groups);
199 g_object_weak_unref (object,
200 (GWeakNotify) accel_group_weak_ref_detach,
202 slist = g_slist_prepend (slist, accel_group);
203 g_object_set_qdata (object, quark_acceleratable_groups, slist);
204 g_object_weak_ref (object,
205 (GWeakNotify) accel_group_weak_ref_detach,
210 _gtk_accel_group_detach (GtkAccelGroup *accel_group,
215 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
216 g_return_if_fail (G_IS_OBJECT (object));
217 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) != NULL);
219 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, object);
220 slist = g_object_get_qdata (object, quark_acceleratable_groups);
221 g_object_weak_unref (object,
222 (GWeakNotify) accel_group_weak_ref_detach,
224 slist = g_slist_remove (slist, accel_group);
225 g_object_set_qdata (object, quark_acceleratable_groups, slist);
227 g_object_weak_ref (object,
228 (GWeakNotify) accel_group_weak_ref_detach,
230 g_object_unref (accel_group);
234 * gtk_accel_groups_from_object:
235 * @object: a #GObject, usually a #GtkWindow
236 * @returns: a list of all accel groups which are attached to @object
238 * Gets a list of all accel groups which are attached to @object.
241 gtk_accel_groups_from_object (GObject *object)
243 g_return_val_if_fail (G_IS_OBJECT (object), NULL);
245 return g_object_get_qdata (object, quark_acceleratable_groups);
249 * gtk_accel_group_find:
250 * @accel_group: a #GtkAccelGroup
251 * @find_func: a function to filter the entries of @accel_group with
252 * @data: data to pass to @find_func
253 * @returns: the key of the first entry passing @find_func. The key is
254 * owned by GTK+ and must not be freed.
256 * Finds the first entry in an accelerator group for which
257 * @find_func returns %TRUE and returns its #GtkAccelKey.
261 gtk_accel_group_find (GtkAccelGroup *accel_group,
262 GtkAccelGroupFindFunc find_func,
265 GtkAccelKey *key = NULL;
268 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
269 g_return_val_if_fail (find_func != NULL, NULL);
271 g_object_ref (accel_group);
272 for (i = 0; i < accel_group->n_accels; i++)
273 if (find_func (&accel_group->priv_accels[i].key,
274 accel_group->priv_accels[i].closure,
277 key = &accel_group->priv_accels[i].key;
280 g_object_unref (accel_group);
286 * gtk_accel_group_lock:
287 * @accel_group: a #GtkAccelGroup
289 * Locks the given accelerator group.
291 * Locking an acelerator group prevents the accelerators contained
292 * within it to be changed during runtime. Refer to
293 * gtk_accel_map_change_entry() about runtime accelerator changes.
295 * If called more than once, @accel_group remains locked until
296 * gtk_accel_group_unlock() has been called an equivalent number
300 gtk_accel_group_lock (GtkAccelGroup *accel_group)
302 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
304 accel_group->lock_count += 1;
308 * gtk_accel_group_unlock:
309 * @accel_group: a #GtkAccelGroup
311 * Undoes the last call to gtk_accel_group_lock() on this @accel_group.
314 gtk_accel_group_unlock (GtkAccelGroup *accel_group)
316 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
317 g_return_if_fail (accel_group->lock_count > 0);
319 accel_group->lock_count -= 1;
323 accel_closure_invalidate (gpointer data,
326 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (data);
328 gtk_accel_group_disconnect (accel_group, closure);
332 bsearch_compare_accels (const void *d1,
335 const GtkAccelGroupEntry *entry1 = d1;
336 const GtkAccelGroupEntry *entry2 = d2;
338 if (entry1->key.accel_key == entry2->key.accel_key)
339 return entry1->key.accel_mods < entry2->key.accel_mods ? -1 : entry1->key.accel_mods > entry2->key.accel_mods;
341 return entry1->key.accel_key < entry2->key.accel_key ? -1 : 1;
345 quick_accel_add (GtkAccelGroup *accel_group,
347 GdkModifierType accel_mods,
348 GtkAccelFlags accel_flags,
352 guint pos, i = accel_group->n_accels++;
353 GtkAccelGroupEntry key;
356 key.key.accel_key = accel_key;
357 key.key.accel_mods = accel_mods;
358 for (pos = 0; pos < i; pos++)
359 if (bsearch_compare_accels (&key, accel_group->priv_accels + pos) < 0)
362 /* insert at position, ref closure */
363 accel_group->priv_accels = g_renew (GtkAccelGroupEntry, accel_group->priv_accels, accel_group->n_accels);
364 g_memmove (accel_group->priv_accels + pos + 1, accel_group->priv_accels + pos,
365 (i - pos) * sizeof (accel_group->priv_accels[0]));
366 accel_group->priv_accels[pos].key.accel_key = accel_key;
367 accel_group->priv_accels[pos].key.accel_mods = accel_mods;
368 accel_group->priv_accels[pos].key.accel_flags = accel_flags;
369 accel_group->priv_accels[pos].closure = g_closure_ref (closure);
370 accel_group->priv_accels[pos].accel_path_quark = path_quark;
371 g_closure_sink (closure);
373 /* handle closure invalidation and reverse lookups */
374 g_closure_add_invalidate_notifier (closure, accel_group, accel_closure_invalidate);
376 /* get accel path notification */
378 _gtk_accel_map_add_group (g_quark_to_string (path_quark), accel_group);
380 /* connect and notify changed */
383 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
384 GQuark accel_quark = g_quark_from_string (accel_name);
389 g_signal_connect_closure_by_id (accel_group, signal_accel_activate, accel_quark, closure, FALSE);
392 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
397 quick_accel_remove (GtkAccelGroup *accel_group,
398 GtkAccelGroupEntry *entry)
400 guint pos = entry - accel_group->priv_accels;
401 GQuark accel_quark = 0;
402 guint accel_key = entry->key.accel_key;
403 GdkModifierType accel_mods = entry->key.accel_mods;
404 GClosure *closure = entry->closure;
406 /* quark for notification */
409 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
411 accel_quark = g_quark_from_string (accel_name);
415 /* clean up closure invalidate notification and disconnect */
416 g_closure_remove_invalidate_notifier (entry->closure, accel_group, accel_closure_invalidate);
418 g_signal_handlers_disconnect_matched (accel_group,
419 G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DETAIL | G_SIGNAL_MATCH_CLOSURE,
420 signal_accel_activate, accel_quark,
421 closure, NULL, NULL);
422 /* clean up accel path notification */
423 if (entry->accel_path_quark)
424 _gtk_accel_map_remove_group (g_quark_to_string (entry->accel_path_quark), accel_group);
426 /* physically remove */
427 accel_group->n_accels -= 1;
428 g_memmove (entry, entry + 1,
429 (accel_group->n_accels - pos) * sizeof (accel_group->priv_accels[0]));
433 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
435 /* remove quick_accel_add() refcount */
436 g_closure_unref (closure);
439 static GtkAccelGroupEntry*
440 quick_accel_find (GtkAccelGroup *accel_group,
442 GdkModifierType accel_mods,
445 GtkAccelGroupEntry *entry;
446 GtkAccelGroupEntry key;
450 if (!accel_group->n_accels)
453 key.key.accel_key = accel_key;
454 key.key.accel_mods = accel_mods;
455 entry = bsearch (&key, accel_group->priv_accels, accel_group->n_accels,
456 sizeof (accel_group->priv_accels[0]), bsearch_compare_accels);
461 /* step back to the first member */
462 for (; entry > accel_group->priv_accels; entry--)
463 if (entry[-1].key.accel_key != accel_key ||
464 entry[-1].key.accel_mods != accel_mods)
466 /* count equal members */
467 for (; entry + *count_p < accel_group->priv_accels + accel_group->n_accels; (*count_p)++)
468 if (entry[*count_p].key.accel_key != accel_key ||
469 entry[*count_p].key.accel_mods != accel_mods)
475 * gtk_accel_group_connect:
476 * @accel_group: the accelerator group to install an accelerator in
477 * @accel_key: key value of the accelerator
478 * @accel_mods: modifier combination of the accelerator
479 * @accel_flags: a flag mask to configure this accelerator
480 * @closure: closure to be executed upon accelerator activation
482 * Installs an accelerator in this group. When @accel_group is being activated
483 * in response to a call to gtk_accel_groups_activate(), @closure will be
484 * invoked if the @accel_key and @accel_mods from gtk_accel_groups_activate()
485 * match those of this connection.
487 * The signature used for the @closure is that of #GtkAccelGroupActivate.
489 * Note that, due to implementation details, a single closure can only be
490 * connected to one accelerator group.
493 gtk_accel_group_connect (GtkAccelGroup *accel_group,
495 GdkModifierType accel_mods,
496 GtkAccelFlags accel_flags,
499 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
500 g_return_if_fail (closure != NULL);
501 g_return_if_fail (accel_key > 0);
502 g_return_if_fail (gtk_accel_group_from_accel_closure (closure) == NULL);
504 g_object_ref (accel_group);
505 if (!closure->is_invalid)
506 quick_accel_add (accel_group,
507 gdk_keyval_to_lower (accel_key),
508 accel_mods, accel_flags, closure, 0);
509 g_object_unref (accel_group);
513 * gtk_accel_group_connect_by_path:
514 * @accel_group: the accelerator group to install an accelerator in
515 * @accel_path: path used for determining key and modifiers.
516 * @closure: closure to be executed upon accelerator activation
518 * Installs an accelerator in this group, using an accelerator path to look
519 * up the appropriate key and modifiers (see gtk_accel_map_add_entry()).
520 * When @accel_group is being activated in response to a call to
521 * gtk_accel_groups_activate(), @closure will be invoked if the @accel_key and
522 * @accel_mods from gtk_accel_groups_activate() match the key and modifiers
525 * The signature used for the @closure is that of #GtkAccelGroupActivate.
528 gtk_accel_group_connect_by_path (GtkAccelGroup *accel_group,
529 const gchar *accel_path,
533 GdkModifierType accel_mods = 0;
536 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
537 g_return_if_fail (closure != NULL);
538 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
540 if (closure->is_invalid)
543 g_object_ref (accel_group);
545 if (gtk_accel_map_lookup_entry (accel_path, &key))
547 accel_key = gdk_keyval_to_lower (key.accel_key);
548 accel_mods = key.accel_mods;
551 quick_accel_add (accel_group, accel_key, accel_mods, GTK_ACCEL_VISIBLE, closure,
552 g_quark_from_string (accel_path));
554 g_object_unref (accel_group);
558 * gtk_accel_group_disconnect:
559 * @accel_group: the accelerator group to remove an accelerator from
560 * @closure: the closure to remove from this accelerator group
561 * @returns: %TRUE if the closure was found and got disconnected
563 * Removes an accelerator previously installed through
564 * gtk_accel_group_connect().
567 gtk_accel_group_disconnect (GtkAccelGroup *accel_group,
572 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
574 for (i = 0; i < accel_group->n_accels; i++)
575 if (accel_group->priv_accels[i].closure == closure)
577 g_object_ref (accel_group);
578 quick_accel_remove (accel_group, accel_group->priv_accels + i);
579 g_object_unref (accel_group);
586 * gtk_accel_group_disconnect_key:
587 * @accel_group: the accelerator group to install an accelerator in
588 * @accel_key: key value of the accelerator
589 * @accel_mods: modifier combination of the accelerator
590 * @returns: %TRUE if there was an accelerator which could be
591 * removed, %FALSE otherwise
593 * Removes an accelerator previously installed through
594 * gtk_accel_group_connect().
597 gtk_accel_group_disconnect_key (GtkAccelGroup *accel_group,
599 GdkModifierType accel_mods)
601 GtkAccelGroupEntry *entries;
602 GSList *slist, *clist = NULL;
603 gboolean removed_one = FALSE;
606 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
608 g_object_ref (accel_group);
610 accel_key = gdk_keyval_to_lower (accel_key);
611 entries = quick_accel_find (accel_group, accel_key, accel_mods, &n);
614 GClosure *closure = g_closure_ref (entries[n].closure);
616 clist = g_slist_prepend (clist, closure);
619 for (slist = clist; slist; slist = slist->next)
621 GClosure *closure = slist->data;
623 removed_one |= gtk_accel_group_disconnect (accel_group, closure);
624 g_closure_unref (closure);
626 g_slist_free (clist);
628 g_object_unref (accel_group);
634 _gtk_accel_group_reconnect (GtkAccelGroup *accel_group,
635 GQuark accel_path_quark)
637 GSList *slist, *clist = NULL;
640 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
642 g_object_ref (accel_group);
644 for (i = 0; i < accel_group->n_accels; i++)
645 if (accel_group->priv_accels[i].accel_path_quark == accel_path_quark)
647 GClosure *closure = g_closure_ref (accel_group->priv_accels[i].closure);
649 clist = g_slist_prepend (clist, closure);
652 for (slist = clist; slist; slist = slist->next)
654 GClosure *closure = slist->data;
656 gtk_accel_group_disconnect (accel_group, closure);
657 gtk_accel_group_connect_by_path (accel_group, g_quark_to_string (accel_path_quark), closure);
658 g_closure_unref (closure);
660 g_slist_free (clist);
662 g_object_unref (accel_group);
666 * gtk_accel_group_query:
667 * @accel_group: the accelerator group to query
668 * @accel_key: key value of the accelerator
669 * @accel_mods: modifier combination of the accelerator
670 * @n_entries: location to return the number of entries found, or %NULL
671 * @returns: an array of @n_entries #GtkAccelGroupEntry elements, or %NULL. The array is owned by GTK+ and must not be freed.
673 * Queries an accelerator group for all entries matching @accel_key and
677 gtk_accel_group_query (GtkAccelGroup *accel_group,
679 GdkModifierType accel_mods,
682 GtkAccelGroupEntry *entries;
685 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
687 entries = quick_accel_find (accel_group, gdk_keyval_to_lower (accel_key), accel_mods, &n);
690 *n_entries = entries ? n : 0;
696 * gtk_accel_group_from_accel_closure:
697 * @closure: a #GClosure
698 * @returns: the #GtkAccelGroup to which @closure is connected, or %NULL.
700 * Finds the #GtkAccelGroup to which @closure is connected;
701 * see gtk_accel_group_connect().
704 gtk_accel_group_from_accel_closure (GClosure *closure)
708 g_return_val_if_fail (closure != NULL, NULL);
710 /* a few remarks on what we do here. in general, we need a way to reverse lookup
711 * accel_groups from closures that are being used in accel groups. this could
712 * be done e.g via a hashtable. it is however cheaper (memory wise) to just
713 * use the invalidation notifier on the closure itself (which we need to install
714 * anyway), that contains the accel group as data which, besides needing to peek
715 * a bit at closure internals, works just as good.
717 for (i = 0; i < G_CLOSURE_N_NOTIFIERS (closure); i++)
718 if (closure->notifiers[i].notify == accel_closure_invalidate)
719 return closure->notifiers[i].data;
725 gtk_accel_group_activate (GtkAccelGroup *accel_group,
727 GObject *acceleratable,
729 GdkModifierType accel_mods)
731 gboolean was_handled;
733 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
734 g_return_val_if_fail (G_IS_OBJECT (acceleratable), FALSE);
737 g_signal_emit (accel_group, signal_accel_activate, accel_quark,
738 acceleratable, accel_key, accel_mods, &was_handled);
744 * gtk_accel_groups_activate:
745 * @object: the #GObject, usually a #GtkWindow, on which
746 * to activate the accelerator.
747 * @accel_key: accelerator keyval from a key event
748 * @accel_mods: keyboard state mask from a key event
749 * @returns: %TRUE if the accelerator was handled, %FALSE otherwise
751 * Finds the first accelerator in any #GtkAccelGroup attached
752 * to @object that matches @accel_key and @accel_mods, and
753 * activates that accelerator.
754 * If an accelerator was activated and handled this keypress, %TRUE
758 gtk_accel_groups_activate (GObject *object,
760 GdkModifierType accel_mods)
762 g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
764 if (gtk_accelerator_valid (accel_key, accel_mods))
770 accel_name = gtk_accelerator_name (accel_key, (accel_mods & gtk_accelerator_get_default_mod_mask ()));
771 accel_quark = g_quark_from_string (accel_name);
774 for (slist = gtk_accel_groups_from_object (object); slist; slist = slist->next)
775 if (gtk_accel_group_activate (slist->data, accel_quark, object, accel_key, accel_mods))
783 * gtk_accelerator_valid:
784 * @keyval: a GDK keyval
785 * @modifiers: modifier mask
786 * @returns: %TRUE if the accelerator is valid
788 * Determines whether a given keyval and modifier mask constitute
789 * a valid keyboard accelerator. For example, the #GDK_a keyval
790 * plus #GDK_CONTROL_MASK is valid - this is a "Ctrl+a" accelerator.
791 * But, you can't, for instance, use the #GDK_Control_L keyval
795 gtk_accelerator_valid (guint keyval,
796 GdkModifierType modifiers)
798 static const guint invalid_accelerator_vals[] = {
799 GDK_Shift_L, GDK_Shift_R, GDK_Shift_Lock, GDK_Caps_Lock, GDK_ISO_Lock,
800 GDK_Control_L, GDK_Control_R, GDK_Meta_L, GDK_Meta_R,
801 GDK_Alt_L, GDK_Alt_R, GDK_Super_L, GDK_Super_R, GDK_Hyper_L, GDK_Hyper_R,
802 GDK_ISO_Level3_Shift, GDK_ISO_Next_Group, GDK_ISO_Prev_Group,
803 GDK_ISO_First_Group, GDK_ISO_Last_Group,
804 GDK_Mode_switch, GDK_Num_Lock, GDK_Multi_key,
805 GDK_Scroll_Lock, GDK_Sys_Req,
806 GDK_Tab, GDK_ISO_Left_Tab, GDK_KP_Tab,
807 GDK_First_Virtual_Screen, GDK_Prev_Virtual_Screen,
808 GDK_Next_Virtual_Screen, GDK_Last_Virtual_Screen,
809 GDK_Terminate_Server, GDK_AudibleBell_Enable,
812 static const guint invalid_unmodified_vals[] = {
813 GDK_Up, GDK_Down, GDK_Left, GDK_Right,
814 GDK_KP_Up, GDK_KP_Down, GDK_KP_Left, GDK_KP_Right,
819 modifiers &= GDK_MODIFIER_MASK;
822 return keyval >= 0x20;
824 ac_val = invalid_accelerator_vals;
827 if (keyval == *ac_val++)
833 ac_val = invalid_unmodified_vals;
836 if (keyval == *ac_val++)
844 static inline gboolean
845 is_alt (const gchar *string)
847 return ((string[0] == '<') &&
848 (string[1] == 'a' || string[1] == 'A') &&
849 (string[2] == 'l' || string[2] == 'L') &&
850 (string[3] == 't' || string[3] == 'T') &&
854 static inline gboolean
855 is_ctl (const gchar *string)
857 return ((string[0] == '<') &&
858 (string[1] == 'c' || string[1] == 'C') &&
859 (string[2] == 't' || string[2] == 'T') &&
860 (string[3] == 'l' || string[3] == 'L') &&
864 static inline gboolean
865 is_modx (const gchar *string)
867 return ((string[0] == '<') &&
868 (string[1] == 'm' || string[1] == 'M') &&
869 (string[2] == 'o' || string[2] == 'O') &&
870 (string[3] == 'd' || string[3] == 'D') &&
871 (string[4] >= '1' && string[4] <= '5') &&
875 static inline gboolean
876 is_ctrl (const gchar *string)
878 return ((string[0] == '<') &&
879 (string[1] == 'c' || string[1] == 'C') &&
880 (string[2] == 't' || string[2] == 'T') &&
881 (string[3] == 'r' || string[3] == 'R') &&
882 (string[4] == 'l' || string[4] == 'L') &&
886 static inline gboolean
887 is_shft (const gchar *string)
889 return ((string[0] == '<') &&
890 (string[1] == 's' || string[1] == 'S') &&
891 (string[2] == 'h' || string[2] == 'H') &&
892 (string[3] == 'f' || string[3] == 'F') &&
893 (string[4] == 't' || string[4] == 'T') &&
897 static inline gboolean
898 is_shift (const gchar *string)
900 return ((string[0] == '<') &&
901 (string[1] == 's' || string[1] == 'S') &&
902 (string[2] == 'h' || string[2] == 'H') &&
903 (string[3] == 'i' || string[3] == 'I') &&
904 (string[4] == 'f' || string[4] == 'F') &&
905 (string[5] == 't' || string[5] == 'T') &&
909 static inline gboolean
910 is_control (const gchar *string)
912 return ((string[0] == '<') &&
913 (string[1] == 'c' || string[1] == 'C') &&
914 (string[2] == 'o' || string[2] == 'O') &&
915 (string[3] == 'n' || string[3] == 'N') &&
916 (string[4] == 't' || string[4] == 'T') &&
917 (string[5] == 'r' || string[5] == 'R') &&
918 (string[6] == 'o' || string[6] == 'O') &&
919 (string[7] == 'l' || string[7] == 'L') &&
923 static inline gboolean
924 is_release (const gchar *string)
926 return ((string[0] == '<') &&
927 (string[1] == 'r' || string[1] == 'R') &&
928 (string[2] == 'e' || string[2] == 'E') &&
929 (string[3] == 'l' || string[3] == 'L') &&
930 (string[4] == 'e' || string[4] == 'E') &&
931 (string[5] == 'a' || string[5] == 'A') &&
932 (string[6] == 's' || string[6] == 'S') &&
933 (string[7] == 'e' || string[7] == 'E') &&
938 * gtk_accelerator_parse:
939 * @accelerator: string representing an accelerator
940 * @accelerator_key: return location for accelerator keyval
941 * @accelerator_mods: return location for accelerator modifier mask
943 * Parses a string representing an accelerator. The
944 * format looks like "<Control>a" or "<Shift><Alt>F1" or
945 * "<Release>z" (the last one is for key release).
946 * The parser is fairly liberal and allows lower or upper case,
947 * and also abbreviations such as "<Ctl>" and "<Ctrl>".
949 * If the parse fails, @accelerator_key and @accelerator_mods will
950 * be set to 0 (zero).
953 gtk_accelerator_parse (const gchar *accelerator,
954 guint *accelerator_key,
955 GdkModifierType *accelerator_mods)
958 GdkModifierType mods;
962 *accelerator_key = 0;
963 if (accelerator_mods)
964 *accelerator_mods = 0;
965 g_return_if_fail (accelerator != NULL);
969 len = strlen (accelerator);
972 if (*accelerator == '<')
974 if (len >= 9 && is_release (accelerator))
978 mods |= GDK_RELEASE_MASK;
980 else if (len >= 9 && is_control (accelerator))
984 mods |= GDK_CONTROL_MASK;
986 else if (len >= 7 && is_shift (accelerator))
990 mods |= GDK_SHIFT_MASK;
992 else if (len >= 6 && is_shft (accelerator))
996 mods |= GDK_SHIFT_MASK;
998 else if (len >= 6 && is_ctrl (accelerator))
1002 mods |= GDK_CONTROL_MASK;
1004 else if (len >= 6 && is_modx (accelerator))
1006 static const guint mod_vals[] = {
1007 GDK_MOD1_MASK, GDK_MOD2_MASK, GDK_MOD3_MASK,
1008 GDK_MOD4_MASK, GDK_MOD5_MASK
1013 mods |= mod_vals[*accelerator - '1'];
1016 else if (len >= 5 && is_ctl (accelerator))
1020 mods |= GDK_CONTROL_MASK;
1022 else if (len >= 5 && is_alt (accelerator))
1026 mods |= GDK_MOD1_MASK;
1032 last_ch = *accelerator;
1033 while (last_ch && last_ch != '>')
1035 last_ch = *accelerator;
1043 keyval = gdk_keyval_from_name (accelerator);
1049 if (accelerator_key)
1050 *accelerator_key = gdk_keyval_to_lower (keyval);
1051 if (accelerator_mods)
1052 *accelerator_mods = mods;
1056 * gtk_accelerator_name:
1057 * @accelerator_key: accelerator keyval
1058 * @accelerator_mods: accelerator modifier mask
1059 * @returns: a newly-allocated accelerator name
1061 * Converts an accelerator keyval and modifier mask
1062 * into a string parseable by gtk_accelerator_parse().
1063 * For example, if you pass in #GDK_q and #GDK_CONTROL_MASK,
1064 * this function returns "<Control>q".
1066 * The caller of this function must free the returned string.
1069 gtk_accelerator_name (guint accelerator_key,
1070 GdkModifierType accelerator_mods)
1072 static const gchar text_release[] = "<Release>";
1073 static const gchar text_shift[] = "<Shift>";
1074 static const gchar text_control[] = "<Control>";
1075 static const gchar text_mod1[] = "<Alt>";
1076 static const gchar text_mod2[] = "<Mod2>";
1077 static const gchar text_mod3[] = "<Mod3>";
1078 static const gchar text_mod4[] = "<Mod4>";
1079 static const gchar text_mod5[] = "<Mod5>";
1084 accelerator_mods &= GDK_MODIFIER_MASK;
1086 keyval_name = gdk_keyval_name (gdk_keyval_to_lower (accelerator_key));
1091 if (accelerator_mods & GDK_RELEASE_MASK)
1092 l += sizeof (text_release) - 1;
1093 if (accelerator_mods & GDK_SHIFT_MASK)
1094 l += sizeof (text_shift) - 1;
1095 if (accelerator_mods & GDK_CONTROL_MASK)
1096 l += sizeof (text_control) - 1;
1097 if (accelerator_mods & GDK_MOD1_MASK)
1098 l += sizeof (text_mod1) - 1;
1099 if (accelerator_mods & GDK_MOD2_MASK)
1100 l += sizeof (text_mod2) - 1;
1101 if (accelerator_mods & GDK_MOD3_MASK)
1102 l += sizeof (text_mod3) - 1;
1103 if (accelerator_mods & GDK_MOD4_MASK)
1104 l += sizeof (text_mod4) - 1;
1105 if (accelerator_mods & GDK_MOD5_MASK)
1106 l += sizeof (text_mod5) - 1;
1107 l += strlen (keyval_name);
1109 accelerator = g_new (gchar, l + 1);
1113 if (accelerator_mods & GDK_RELEASE_MASK)
1115 strcpy (accelerator + l, text_release);
1116 l += sizeof (text_release) - 1;
1118 if (accelerator_mods & GDK_SHIFT_MASK)
1120 strcpy (accelerator + l, text_shift);
1121 l += sizeof (text_shift) - 1;
1123 if (accelerator_mods & GDK_CONTROL_MASK)
1125 strcpy (accelerator + l, text_control);
1126 l += sizeof (text_control) - 1;
1128 if (accelerator_mods & GDK_MOD1_MASK)
1130 strcpy (accelerator + l, text_mod1);
1131 l += sizeof (text_mod1) - 1;
1133 if (accelerator_mods & GDK_MOD2_MASK)
1135 strcpy (accelerator + l, text_mod2);
1136 l += sizeof (text_mod2) - 1;
1138 if (accelerator_mods & GDK_MOD3_MASK)
1140 strcpy (accelerator + l, text_mod3);
1141 l += sizeof (text_mod3) - 1;
1143 if (accelerator_mods & GDK_MOD4_MASK)
1145 strcpy (accelerator + l, text_mod4);
1146 l += sizeof (text_mod4) - 1;
1148 if (accelerator_mods & GDK_MOD5_MASK)
1150 strcpy (accelerator + l, text_mod5);
1151 l += sizeof (text_mod5) - 1;
1153 strcpy (accelerator + l, keyval_name);
1159 * gtk_accelerator_set_default_mod_mask:
1160 * @default_mod_mask: accelerator modifier mask
1162 * Sets the modifiers that will be considered significant for keyboard
1163 * accelerators. The default mod mask is #GDK_CONTROL_MASK |
1164 * #GDK_SHIFT_MASK | #GDK_MOD1_MASK, that is, Control, Shift, and Alt.
1165 * Other modifiers will by default be ignored by #GtkAccelGroup.
1166 * You must include at least the three default modifiers in any
1167 * value you pass to this function.
1169 * The default mod mask should be changed on application startup,
1170 * before using any accelerator groups.
1173 gtk_accelerator_set_default_mod_mask (GdkModifierType default_mod_mask)
1175 default_accel_mod_mask = (default_mod_mask & GDK_MODIFIER_MASK) |
1176 (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_MOD1_MASK);
1180 * gtk_accelerator_get_default_mod_mask:
1181 * @returns: the default accelerator modifier mask
1183 * Gets the value set by gtk_accelerator_set_default_mod_mask().
1186 gtk_accelerator_get_default_mod_mask (void)
1188 return default_accel_mod_mask;