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/.
30 #include "gtkaccelgroup.h"
31 #include "gtkaccelmap.h"
32 #include "gtkmain.h" /* For _gtk_boolean_handled_accumulator */
33 #include "gdk/gdkkeysyms.h"
34 #include "gtkmarshalers.h"
37 /* --- prototypes --- */
38 static void gtk_accel_group_class_init (GtkAccelGroupClass *class);
39 static void gtk_accel_group_init (GtkAccelGroup *accel_group);
40 static void gtk_accel_group_finalize (GObject *object);
43 /* --- variables --- */
44 static GObjectClass *parent_class = NULL;
45 static guint signal_accel_activate = 0;
46 static guint signal_accel_changed = 0;
47 static guint quark_acceleratable_groups = 0;
48 static guint default_accel_mod_mask = (GDK_SHIFT_MASK |
53 /* --- functions --- */
55 * gtk_accel_group_get_type:
56 * @returns: the type ID for accelerator groups.
59 gtk_accel_group_get_type (void)
61 static GType object_type = 0;
65 static const GTypeInfo object_info = {
66 sizeof (GtkAccelGroupClass),
68 (GBaseFinalizeFunc) NULL,
69 (GClassInitFunc) gtk_accel_group_class_init,
70 NULL, /* class_finalize */
71 NULL, /* class_data */
72 sizeof (GtkAccelGroup),
74 (GInstanceInitFunc) gtk_accel_group_init,
77 object_type = g_type_register_static (G_TYPE_OBJECT, "GtkAccelGroup",
85 gtk_accel_group_class_init (GtkAccelGroupClass *class)
87 GObjectClass *object_class = G_OBJECT_CLASS (class);
89 parent_class = g_type_class_peek_parent (class);
91 quark_acceleratable_groups = g_quark_from_static_string ("gtk-acceleratable-accel-groups");
93 object_class->finalize = gtk_accel_group_finalize;
95 class->accel_changed = NULL;
96 signal_accel_activate =
97 g_signal_new ("accel_activate",
98 G_OBJECT_CLASS_TYPE (class),
101 _gtk_boolean_handled_accumulator, NULL,
102 _gtk_marshal_BOOLEAN__OBJECT_UINT_FLAGS,
106 GDK_TYPE_MODIFIER_TYPE);
107 signal_accel_changed =
108 g_signal_new ("accel_changed",
109 G_OBJECT_CLASS_TYPE (class),
110 G_SIGNAL_RUN_FIRST | G_SIGNAL_DETAILED,
111 G_STRUCT_OFFSET (GtkAccelGroupClass, accel_changed),
113 _gtk_marshal_VOID__UINT_FLAGS_BOXED,
116 GDK_TYPE_MODIFIER_TYPE,
121 gtk_accel_group_finalize (GObject *object)
123 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (object);
126 for (i = 0; i < accel_group->n_accels; i++)
128 GtkAccelGroupEntry *entry = &accel_group->priv_accels[i];
130 if (entry->accel_path_quark)
132 const gchar *accel_path = g_quark_to_string (entry[i].accel_path_quark);
134 _gtk_accel_map_remove_group (accel_path, accel_group);
138 g_free (accel_group->priv_accels);
140 G_OBJECT_CLASS (parent_class)->finalize (object);
144 gtk_accel_group_init (GtkAccelGroup *accel_group)
146 accel_group->lock_count = 0;
147 accel_group->modifier_mask = gtk_accelerator_get_default_mod_mask ();
148 accel_group->acceleratables = NULL;
149 accel_group->n_accels = 0;
150 accel_group->priv_accels = NULL;
154 * gtk_accel_group_new:
155 * @returns: a new #GtkAccelGroup object
157 * Creates a new #GtkAccelGroup.
160 gtk_accel_group_new (void)
162 return g_object_new (GTK_TYPE_ACCEL_GROUP, NULL);
166 accel_group_weak_ref_detach (GSList *free_list,
167 GObject *stale_object)
171 for (slist = free_list; slist; slist = slist->next)
173 GtkAccelGroup *accel_group;
175 accel_group = slist->data;
176 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, stale_object);
177 g_object_unref (accel_group);
179 g_slist_free (free_list);
180 g_object_set_qdata (stale_object, quark_acceleratable_groups, NULL);
184 _gtk_accel_group_attach (GtkAccelGroup *accel_group,
189 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
190 g_return_if_fail (G_IS_OBJECT (object));
191 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) == NULL);
193 g_object_ref (accel_group);
194 accel_group->acceleratables = g_slist_prepend (accel_group->acceleratables, object);
195 slist = g_object_get_qdata (object, quark_acceleratable_groups);
197 g_object_weak_unref (object,
198 (GWeakNotify) accel_group_weak_ref_detach,
200 slist = g_slist_prepend (slist, accel_group);
201 g_object_set_qdata (object, quark_acceleratable_groups, slist);
202 g_object_weak_ref (object,
203 (GWeakNotify) accel_group_weak_ref_detach,
208 _gtk_accel_group_detach (GtkAccelGroup *accel_group,
213 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
214 g_return_if_fail (G_IS_OBJECT (object));
215 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) != NULL);
217 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, object);
218 slist = g_object_get_qdata (object, quark_acceleratable_groups);
219 g_object_weak_unref (object,
220 (GWeakNotify) accel_group_weak_ref_detach,
222 slist = g_slist_remove (slist, accel_group);
223 g_object_set_qdata (object, quark_acceleratable_groups, slist);
225 g_object_weak_ref (object,
226 (GWeakNotify) accel_group_weak_ref_detach,
228 g_object_unref (accel_group);
232 * gtk_accel_groups_from_object:
233 * @object: a #GObject, usually a #GtkWindow
234 * @returns: a list of all accel groups which are attached to @object
236 * Gets a list of all accel groups which are attached to @object.
239 gtk_accel_groups_from_object (GObject *object)
241 g_return_val_if_fail (G_IS_OBJECT (object), NULL);
243 return g_object_get_qdata (object, quark_acceleratable_groups);
247 * gtk_accel_group_find:
248 * @accel_group: a #GtkAccelGroup
249 * @find_func: a function to filter the entries of @accel_group with
250 * @data: data to pass to @find_func
251 * @returns: the key of the first entry passing @find_func. The key is
252 * owned by GTK+ and must not be freed.
254 * Finds the first entry in an accelerator group for which
255 * @find_func returns %TRUE and returns its #GtkAccelKey.
259 gtk_accel_group_find (GtkAccelGroup *accel_group,
260 GtkAccelGroupFindFunc find_func,
263 GtkAccelKey *key = NULL;
266 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
267 g_return_val_if_fail (find_func != NULL, NULL);
269 g_object_ref (accel_group);
270 for (i = 0; i < accel_group->n_accels; i++)
271 if (find_func (&accel_group->priv_accels[i].key,
272 accel_group->priv_accels[i].closure,
275 key = &accel_group->priv_accels[i].key;
278 g_object_unref (accel_group);
284 * gtk_accel_group_lock:
285 * @accel_group: a #GtkAccelGroup
287 * Locks the given accelerator group.
289 * Locking an acelerator group prevents the accelerators contained
290 * within it to be changed during runtime. Refer to
291 * gtk_accel_map_change_entry() about runtime accelerator changes.
293 * If called more than once, @accel_group remains locked until
294 * gtk_accel_group_unlock() has been called an equivalent number
298 gtk_accel_group_lock (GtkAccelGroup *accel_group)
300 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
302 accel_group->lock_count += 1;
306 * gtk_accel_group_unlock:
307 * @accel_group: a #GtkAccelGroup
309 * Undoes the last call to gtk_accel_group_lock() on this @accel_group.
312 gtk_accel_group_unlock (GtkAccelGroup *accel_group)
314 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
315 g_return_if_fail (accel_group->lock_count > 0);
317 accel_group->lock_count -= 1;
321 accel_closure_invalidate (gpointer data,
324 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (data);
326 gtk_accel_group_disconnect (accel_group, closure);
330 bsearch_compare_accels (const void *d1,
333 const GtkAccelGroupEntry *entry1 = d1;
334 const GtkAccelGroupEntry *entry2 = d2;
336 if (entry1->key.accel_key == entry2->key.accel_key)
337 return entry1->key.accel_mods < entry2->key.accel_mods ? -1 : entry1->key.accel_mods > entry2->key.accel_mods;
339 return entry1->key.accel_key < entry2->key.accel_key ? -1 : 1;
343 quick_accel_add (GtkAccelGroup *accel_group,
345 GdkModifierType accel_mods,
346 GtkAccelFlags accel_flags,
350 guint pos, i = accel_group->n_accels++;
351 GtkAccelGroupEntry key;
354 key.key.accel_key = accel_key;
355 key.key.accel_mods = accel_mods;
356 for (pos = 0; pos < i; pos++)
357 if (bsearch_compare_accels (&key, accel_group->priv_accels + pos) < 0)
360 /* insert at position, ref closure */
361 accel_group->priv_accels = g_renew (GtkAccelGroupEntry, accel_group->priv_accels, accel_group->n_accels);
362 g_memmove (accel_group->priv_accels + pos + 1, accel_group->priv_accels + pos,
363 (i - pos) * sizeof (accel_group->priv_accels[0]));
364 accel_group->priv_accels[pos].key.accel_key = accel_key;
365 accel_group->priv_accels[pos].key.accel_mods = accel_mods;
366 accel_group->priv_accels[pos].key.accel_flags = accel_flags;
367 accel_group->priv_accels[pos].closure = g_closure_ref (closure);
368 accel_group->priv_accels[pos].accel_path_quark = path_quark;
369 g_closure_sink (closure);
371 /* handle closure invalidation and reverse lookups */
372 g_closure_add_invalidate_notifier (closure, accel_group, accel_closure_invalidate);
374 /* get accel path notification */
376 _gtk_accel_map_add_group (g_quark_to_string (path_quark), accel_group);
378 /* connect and notify changed */
381 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
382 GQuark accel_quark = g_quark_from_string (accel_name);
387 g_signal_connect_closure_by_id (accel_group, signal_accel_activate, accel_quark, closure, FALSE);
390 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
395 quick_accel_remove (GtkAccelGroup *accel_group,
396 GtkAccelGroupEntry *entry)
398 guint pos = entry - accel_group->priv_accels;
399 GQuark accel_quark = 0;
400 guint accel_key = entry->key.accel_key;
401 GdkModifierType accel_mods = entry->key.accel_mods;
402 GClosure *closure = entry->closure;
404 /* quark for notification */
407 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
409 accel_quark = g_quark_from_string (accel_name);
413 /* clean up closure invalidate notification and disconnect */
414 g_closure_remove_invalidate_notifier (entry->closure, accel_group, accel_closure_invalidate);
416 g_signal_handlers_disconnect_matched (accel_group,
417 G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DETAIL | G_SIGNAL_MATCH_CLOSURE,
418 signal_accel_activate, accel_quark,
419 closure, NULL, NULL);
420 /* clean up accel path notification */
421 if (entry->accel_path_quark)
422 _gtk_accel_map_remove_group (g_quark_to_string (entry->accel_path_quark), accel_group);
424 /* physically remove */
425 accel_group->n_accels -= 1;
426 g_memmove (entry, entry + 1,
427 (accel_group->n_accels - pos) * sizeof (accel_group->priv_accels[0]));
431 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
433 /* remove quick_accel_add() refcount */
434 g_closure_unref (closure);
437 static GtkAccelGroupEntry*
438 quick_accel_find (GtkAccelGroup *accel_group,
440 GdkModifierType accel_mods,
443 GtkAccelGroupEntry *entry;
444 GtkAccelGroupEntry key;
446 if (!accel_group->n_accels)
449 key.key.accel_key = accel_key;
450 key.key.accel_mods = accel_mods;
451 entry = bsearch (&key, accel_group->priv_accels, accel_group->n_accels,
452 sizeof (accel_group->priv_accels[0]), bsearch_compare_accels);
457 /* step back to the first member */
458 for (; entry > accel_group->priv_accels; entry--)
459 if (entry[-1].key.accel_key != accel_key ||
460 entry[-1].key.accel_mods != accel_mods)
462 /* count equal members */
463 for (*count_p = 0; entry + *count_p < accel_group->priv_accels + accel_group->n_accels; (*count_p)++)
464 if (entry[*count_p].key.accel_key != accel_key ||
465 entry[*count_p].key.accel_mods != accel_mods)
471 * gtk_accel_group_connect:
472 * @accel_group: the accelerator group to install an accelerator in
473 * @accel_key: key value of the accelerator
474 * @accel_mods: modifier combination of the accelerator
475 * @accel_flags: a flag mask to configure this accelerator
476 * @closure: closure to be executed upon accelerator activation
478 * Installs an accelerator in this group. When @accel_group is being activated
479 * in response to a call to gtk_accel_groups_activate(), @closure will be
480 * invoked if the @accel_key and @accel_mods from gtk_accel_groups_activate()
481 * match those of this connection.
483 * The signature used for the @closure is that of #GtkAccelGroupActivate.
485 * Note that, due to implementation details, a single closure can only be
486 * connected to one accelerator group.
489 gtk_accel_group_connect (GtkAccelGroup *accel_group,
491 GdkModifierType accel_mods,
492 GtkAccelFlags accel_flags,
495 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
496 g_return_if_fail (closure != NULL);
497 g_return_if_fail (accel_key > 0);
498 g_return_if_fail (gtk_accel_group_from_accel_closure (closure) == NULL);
500 g_object_ref (accel_group);
501 if (!closure->is_invalid)
502 quick_accel_add (accel_group,
503 gdk_keyval_to_lower (accel_key),
504 accel_mods, accel_flags, closure, 0);
505 g_object_unref (accel_group);
509 * gtk_accel_group_connect_by_path:
510 * @accel_group: the accelerator group to install an accelerator in
511 * @accel_path: path used for determining key and modifiers.
512 * @closure: closure to be executed upon accelerator activation
514 * Installs an accelerator in this group, using an accelerator path to look
515 * up the appropriate key and modifiers (see gtk_accel_map_add_entry()).
516 * When @accel_group is being activated in response to a call to
517 * gtk_accel_groups_activate(), @closure will be invoked if the @accel_key and
518 * @accel_mods from gtk_accel_groups_activate() match the key and modifiers
521 * The signature used for the @closure is that of #GtkAccelGroupActivate.
524 gtk_accel_group_connect_by_path (GtkAccelGroup *accel_group,
525 const gchar *accel_path,
529 GdkModifierType accel_mods = 0;
532 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
533 g_return_if_fail (closure != NULL);
534 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
536 if (closure->is_invalid)
539 g_object_ref (accel_group);
541 if (gtk_accel_map_lookup_entry (accel_path, &key))
543 accel_key = gdk_keyval_to_lower (key.accel_key);
544 accel_mods = key.accel_mods;
547 quick_accel_add (accel_group, accel_key, accel_mods, GTK_ACCEL_VISIBLE, closure,
548 g_quark_from_string (accel_path));
550 g_object_unref (accel_group);
554 * gtk_accel_group_disconnect:
555 * @accel_group: the accelerator group to remove an accelerator from
556 * @closure: the closure to remove from this accelerator group
557 * @returns: %TRUE if the closure was found and got disconnected
559 * Removes an accelerator previously installed through
560 * gtk_accel_group_connect().
563 gtk_accel_group_disconnect (GtkAccelGroup *accel_group,
568 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
570 for (i = 0; i < accel_group->n_accels; i++)
571 if (accel_group->priv_accels[i].closure == closure)
573 g_object_ref (accel_group);
574 quick_accel_remove (accel_group, accel_group->priv_accels + i);
575 g_object_unref (accel_group);
582 * gtk_accel_group_disconnect_key:
583 * @accel_group: the accelerator group to install an accelerator in
584 * @accel_key: key value of the accelerator
585 * @accel_mods: modifier combination of the accelerator
586 * @returns: %TRUE if there was an accelerator which could be
587 * removed, %FALSE otherwise
589 * Removes an accelerator previously installed through
590 * gtk_accel_group_connect().
593 gtk_accel_group_disconnect_key (GtkAccelGroup *accel_group,
595 GdkModifierType accel_mods)
597 GtkAccelGroupEntry *entries;
598 GSList *slist, *clist = NULL;
599 gboolean removed_one = FALSE;
602 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
604 g_object_ref (accel_group);
606 accel_key = gdk_keyval_to_lower (accel_key);
607 entries = quick_accel_find (accel_group, accel_key, accel_mods, &n);
610 GClosure *closure = g_closure_ref (entries[n].closure);
612 clist = g_slist_prepend (clist, closure);
615 for (slist = clist; slist; slist = slist->next)
617 GClosure *closure = slist->data;
619 removed_one |= gtk_accel_group_disconnect (accel_group, closure);
620 g_closure_unref (closure);
622 g_slist_free (clist);
624 g_object_unref (accel_group);
630 _gtk_accel_group_reconnect (GtkAccelGroup *accel_group,
631 GQuark accel_path_quark)
633 GSList *slist, *clist = NULL;
636 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
638 g_object_ref (accel_group);
640 for (i = 0; i < accel_group->n_accels; i++)
641 if (accel_group->priv_accels[i].accel_path_quark == accel_path_quark)
643 GClosure *closure = g_closure_ref (accel_group->priv_accels[i].closure);
645 clist = g_slist_prepend (clist, closure);
648 for (slist = clist; slist; slist = slist->next)
650 GClosure *closure = slist->data;
652 gtk_accel_group_disconnect (accel_group, closure);
653 gtk_accel_group_connect_by_path (accel_group, g_quark_to_string (accel_path_quark), closure);
654 g_closure_unref (closure);
656 g_slist_free (clist);
658 g_object_unref (accel_group);
662 * gtk_accel_group_query:
663 * @accel_group: the accelerator group to query
664 * @accel_key: key value of the accelerator
665 * @accel_mods: modifier combination of the accelerator
666 * @n_entries: location to return the number of entries found, or %NULL
667 * @returns: an array of @n_entries #GtkAccelGroupEntry elements, or %NULL. The array is owned by GTK+ and must not be freed.
669 * Queries an accelerator group for all entries matching @accel_key and
673 gtk_accel_group_query (GtkAccelGroup *accel_group,
675 GdkModifierType accel_mods,
678 GtkAccelGroupEntry *entries;
681 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
683 entries = quick_accel_find (accel_group, gdk_keyval_to_lower (accel_key), accel_mods, &n);
686 *n_entries = entries ? n : 0;
692 * gtk_accel_group_from_accel_closure:
693 * @closure: a #GClosure
694 * @returns: the #GtkAccelGroup to which @closure is connected, or %NULL.
696 * Finds the #GtkAccelGroup to which @closure is connected;
697 * see gtk_accel_group_connect().
700 gtk_accel_group_from_accel_closure (GClosure *closure)
704 g_return_val_if_fail (closure != NULL, NULL);
706 /* a few remarks on what we do here. in general, we need a way to reverse lookup
707 * accel_groups from closures that are being used in accel groups. this could
708 * be done e.g via a hashtable. it is however cheaper (memory wise) to just
709 * use the invalidation notifier on the closure itself (which we need to install
710 * anyway), that contains the accel group as data which, besides needing to peek
711 * a bit at closure internals, works just as good.
713 for (i = 0; i < G_CLOSURE_N_NOTIFIERS (closure); i++)
714 if (closure->notifiers[i].notify == accel_closure_invalidate)
715 return closure->notifiers[i].data;
721 _gtk_accel_group_activate (GtkAccelGroup *accel_group,
723 GObject *acceleratable,
725 GdkModifierType accel_mods)
727 gboolean was_handled;
729 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
732 g_signal_emit (accel_group, signal_accel_activate, accel_quark,
733 acceleratable, accel_key, accel_mods, &was_handled);
739 * gtk_accel_groups_activate:
740 * @object: the #GObject, usually a #GtkWindow, on which
741 * to activate the accelerator.
742 * @accel_key: accelerator keyval from a key event
743 * @accel_mods: keyboard state mask from a key event
744 * @returns: %TRUE if the accelerator was handled, %FALSE otherwise
746 * Finds the first accelerator in any #GtkAccelGroup attached
747 * to @object that matches @accel_key and @accel_mods, and
748 * activates that accelerator.
749 * If an accelerator was activated and handled this keypress, %TRUE
753 gtk_accel_groups_activate (GObject *object,
755 GdkModifierType accel_mods)
757 g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
759 if (gtk_accelerator_valid (accel_key, accel_mods))
765 accel_name = gtk_accelerator_name (accel_key, (accel_mods & gtk_accelerator_get_default_mod_mask ()));
766 accel_quark = g_quark_from_string (accel_name);
769 for (slist = gtk_accel_groups_from_object (object); slist; slist = slist->next)
770 if (_gtk_accel_group_activate (slist->data, accel_quark, object, accel_key, accel_mods))
778 * gtk_accelerator_valid:
779 * @keyval: a GDK keyval
780 * @modifiers: modifier mask
781 * @returns: %TRUE if the accelerator is valid
783 * Determines whether a given keyval and modifier mask constitute
784 * a valid keyboard accelerator. For example, the #GDK_a keyval
785 * plus #GDK_CONTROL_MASK is valid - this is a "Ctrl+a" accelerator.
786 * But, you can't, for instance, use the #GDK_Control_L keyval
790 gtk_accelerator_valid (guint keyval,
791 GdkModifierType modifiers)
793 static const guint invalid_accelerator_vals[] = {
794 GDK_Shift_L, GDK_Shift_R, GDK_Shift_Lock, GDK_Caps_Lock, GDK_ISO_Lock,
795 GDK_Control_L, GDK_Control_R, GDK_Meta_L, GDK_Meta_R,
796 GDK_Alt_L, GDK_Alt_R, GDK_Super_L, GDK_Super_R, GDK_Hyper_L, GDK_Hyper_R,
797 GDK_ISO_Level3_Shift, GDK_ISO_Next_Group, GDK_ISO_Prev_Group,
798 GDK_ISO_First_Group, GDK_ISO_Last_Group,
799 GDK_Mode_switch, GDK_Num_Lock, GDK_Multi_key,
800 GDK_Scroll_Lock, GDK_Sys_Req,
801 GDK_Tab, GDK_ISO_Left_Tab, GDK_KP_Tab,
802 GDK_First_Virtual_Screen, GDK_Prev_Virtual_Screen,
803 GDK_Next_Virtual_Screen, GDK_Last_Virtual_Screen,
804 GDK_Terminate_Server, GDK_AudibleBell_Enable,
807 static const guint invalid_unmodified_vals[] = {
808 GDK_Up, GDK_Down, GDK_Left, GDK_Right,
809 GDK_KP_Up, GDK_KP_Down, GDK_KP_Left, GDK_KP_Right,
814 modifiers &= GDK_MODIFIER_MASK;
817 return keyval >= 0x20;
819 ac_val = invalid_accelerator_vals;
822 if (keyval == *ac_val++)
828 ac_val = invalid_unmodified_vals;
831 if (keyval == *ac_val++)
839 static inline gboolean
840 is_alt (const gchar *string)
842 return ((string[0] == '<') &&
843 (string[1] == 'a' || string[1] == 'A') &&
844 (string[2] == 'l' || string[2] == 'L') &&
845 (string[3] == 't' || string[3] == 'T') &&
849 static inline gboolean
850 is_ctl (const gchar *string)
852 return ((string[0] == '<') &&
853 (string[1] == 'c' || string[1] == 'C') &&
854 (string[2] == 't' || string[2] == 'T') &&
855 (string[3] == 'l' || string[3] == 'L') &&
859 static inline gboolean
860 is_modx (const gchar *string)
862 return ((string[0] == '<') &&
863 (string[1] == 'm' || string[1] == 'M') &&
864 (string[2] == 'o' || string[2] == 'O') &&
865 (string[3] == 'd' || string[3] == 'D') &&
866 (string[4] >= '1' && string[4] <= '5') &&
870 static inline gboolean
871 is_ctrl (const gchar *string)
873 return ((string[0] == '<') &&
874 (string[1] == 'c' || string[1] == 'C') &&
875 (string[2] == 't' || string[2] == 'T') &&
876 (string[3] == 'r' || string[3] == 'R') &&
877 (string[4] == 'l' || string[4] == 'L') &&
881 static inline gboolean
882 is_shft (const gchar *string)
884 return ((string[0] == '<') &&
885 (string[1] == 's' || string[1] == 'S') &&
886 (string[2] == 'h' || string[2] == 'H') &&
887 (string[3] == 'f' || string[3] == 'F') &&
888 (string[4] == 't' || string[4] == 'T') &&
892 static inline gboolean
893 is_shift (const gchar *string)
895 return ((string[0] == '<') &&
896 (string[1] == 's' || string[1] == 'S') &&
897 (string[2] == 'h' || string[2] == 'H') &&
898 (string[3] == 'i' || string[3] == 'I') &&
899 (string[4] == 'f' || string[4] == 'F') &&
900 (string[5] == 't' || string[5] == 'T') &&
904 static inline gboolean
905 is_control (const gchar *string)
907 return ((string[0] == '<') &&
908 (string[1] == 'c' || string[1] == 'C') &&
909 (string[2] == 'o' || string[2] == 'O') &&
910 (string[3] == 'n' || string[3] == 'N') &&
911 (string[4] == 't' || string[4] == 'T') &&
912 (string[5] == 'r' || string[5] == 'R') &&
913 (string[6] == 'o' || string[6] == 'O') &&
914 (string[7] == 'l' || string[7] == 'L') &&
918 static inline gboolean
919 is_release (const gchar *string)
921 return ((string[0] == '<') &&
922 (string[1] == 'r' || string[1] == 'R') &&
923 (string[2] == 'e' || string[2] == 'E') &&
924 (string[3] == 'l' || string[3] == 'L') &&
925 (string[4] == 'e' || string[4] == 'E') &&
926 (string[5] == 'a' || string[5] == 'A') &&
927 (string[6] == 's' || string[6] == 'S') &&
928 (string[7] == 'e' || string[7] == 'E') &&
933 * gtk_accelerator_parse:
934 * @accelerator: string representing an accelerator
935 * @accelerator_key: return location for accelerator keyval
936 * @accelerator_mods: return location for accelerator modifier mask
938 * Parses a string representing an accelerator. The
939 * format looks like "<Control>a" or "<Shift><Alt>F1" or
940 * "<Release>z" (the last one is for key release).
941 * The parser is fairly liberal and allows lower or upper case,
942 * and also abbreviations such as "<Ctl>" and "<Ctrl>".
944 * If the parse fails, @accelerator_key and @accelerator_mods will
945 * be set to 0 (zero).
948 gtk_accelerator_parse (const gchar *accelerator,
949 guint *accelerator_key,
950 GdkModifierType *accelerator_mods)
953 GdkModifierType mods;
957 *accelerator_key = 0;
958 if (accelerator_mods)
959 *accelerator_mods = 0;
960 g_return_if_fail (accelerator != NULL);
964 len = strlen (accelerator);
967 if (*accelerator == '<')
969 if (len >= 9 && is_release (accelerator))
973 mods |= GDK_RELEASE_MASK;
975 else if (len >= 9 && is_control (accelerator))
979 mods |= GDK_CONTROL_MASK;
981 else if (len >= 7 && is_shift (accelerator))
985 mods |= GDK_SHIFT_MASK;
987 else if (len >= 6 && is_shft (accelerator))
991 mods |= GDK_SHIFT_MASK;
993 else if (len >= 6 && is_ctrl (accelerator))
997 mods |= GDK_CONTROL_MASK;
999 else if (len >= 6 && is_modx (accelerator))
1001 static const guint mod_vals[] = {
1002 GDK_MOD1_MASK, GDK_MOD2_MASK, GDK_MOD3_MASK,
1003 GDK_MOD4_MASK, GDK_MOD5_MASK
1008 mods |= mod_vals[*accelerator - '1'];
1011 else if (len >= 5 && is_ctl (accelerator))
1015 mods |= GDK_CONTROL_MASK;
1017 else if (len >= 5 && is_alt (accelerator))
1021 mods |= GDK_MOD1_MASK;
1027 last_ch = *accelerator;
1028 while (last_ch && last_ch != '>')
1030 last_ch = *accelerator;
1038 keyval = gdk_keyval_from_name (accelerator);
1044 if (accelerator_key)
1045 *accelerator_key = gdk_keyval_to_lower (keyval);
1046 if (accelerator_mods)
1047 *accelerator_mods = mods;
1051 * gtk_accelerator_name:
1052 * @accelerator_key: accelerator keyval
1053 * @accelerator_mods: accelerator modifier mask
1054 * @returns: a newly-allocated accelerator name
1056 * Converts an accelerator keyval and modifier mask
1057 * into a string parseable by gtk_accelerator_parse().
1058 * For example, if you pass in #GDK_q and #GDK_CONTROL_MASK,
1059 * this function returns "<Control>q".
1061 * The caller of this function must free the returned string.
1064 gtk_accelerator_name (guint accelerator_key,
1065 GdkModifierType accelerator_mods)
1067 static const gchar text_release[] = "<Release>";
1068 static const gchar text_shift[] = "<Shift>";
1069 static const gchar text_control[] = "<Control>";
1070 static const gchar text_mod1[] = "<Alt>";
1071 static const gchar text_mod2[] = "<Mod2>";
1072 static const gchar text_mod3[] = "<Mod3>";
1073 static const gchar text_mod4[] = "<Mod4>";
1074 static const gchar text_mod5[] = "<Mod5>";
1079 accelerator_mods &= GDK_MODIFIER_MASK;
1081 keyval_name = gdk_keyval_name (gdk_keyval_to_lower (accelerator_key));
1086 if (accelerator_mods & GDK_RELEASE_MASK)
1087 l += sizeof (text_release) - 1;
1088 if (accelerator_mods & GDK_SHIFT_MASK)
1089 l += sizeof (text_shift) - 1;
1090 if (accelerator_mods & GDK_CONTROL_MASK)
1091 l += sizeof (text_control) - 1;
1092 if (accelerator_mods & GDK_MOD1_MASK)
1093 l += sizeof (text_mod1) - 1;
1094 if (accelerator_mods & GDK_MOD2_MASK)
1095 l += sizeof (text_mod2) - 1;
1096 if (accelerator_mods & GDK_MOD3_MASK)
1097 l += sizeof (text_mod3) - 1;
1098 if (accelerator_mods & GDK_MOD4_MASK)
1099 l += sizeof (text_mod4) - 1;
1100 if (accelerator_mods & GDK_MOD5_MASK)
1101 l += sizeof (text_mod5) - 1;
1102 l += strlen (keyval_name);
1104 accelerator = g_new (gchar, l + 1);
1108 if (accelerator_mods & GDK_RELEASE_MASK)
1110 strcpy (accelerator + l, text_release);
1111 l += sizeof (text_release) - 1;
1113 if (accelerator_mods & GDK_SHIFT_MASK)
1115 strcpy (accelerator + l, text_shift);
1116 l += sizeof (text_shift) - 1;
1118 if (accelerator_mods & GDK_CONTROL_MASK)
1120 strcpy (accelerator + l, text_control);
1121 l += sizeof (text_control) - 1;
1123 if (accelerator_mods & GDK_MOD1_MASK)
1125 strcpy (accelerator + l, text_mod1);
1126 l += sizeof (text_mod1) - 1;
1128 if (accelerator_mods & GDK_MOD2_MASK)
1130 strcpy (accelerator + l, text_mod2);
1131 l += sizeof (text_mod2) - 1;
1133 if (accelerator_mods & GDK_MOD3_MASK)
1135 strcpy (accelerator + l, text_mod3);
1136 l += sizeof (text_mod3) - 1;
1138 if (accelerator_mods & GDK_MOD4_MASK)
1140 strcpy (accelerator + l, text_mod4);
1141 l += sizeof (text_mod4) - 1;
1143 if (accelerator_mods & GDK_MOD5_MASK)
1145 strcpy (accelerator + l, text_mod5);
1146 l += sizeof (text_mod5) - 1;
1148 strcpy (accelerator + l, keyval_name);
1154 * gtk_accelerator_set_default_mod_mask:
1155 * @default_mod_mask: accelerator modifier mask
1157 * Sets the modifiers that will be considered significant for keyboard
1158 * accelerators. The default mod mask is #GDK_CONTROL_MASK |
1159 * #GDK_SHIFT_MASK | #GDK_MOD1_MASK, that is, Control, Shift, and Alt.
1160 * Other modifiers will by default be ignored by #GtkAccelGroup.
1161 * You must include at least the three default modifiers in any
1162 * value you pass to this function.
1164 * The default mod mask should be changed on application startup,
1165 * before using any accelerator groups.
1168 gtk_accelerator_set_default_mod_mask (GdkModifierType default_mod_mask)
1170 default_accel_mod_mask = (default_mod_mask & GDK_MODIFIER_MASK) |
1171 (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_MOD1_MASK);
1175 * gtk_accelerator_get_default_mod_mask:
1176 * @returns: the default accelerator modifier mask
1178 * Gets the value set by gtk_accelerator_set_default_mod_mask().
1181 gtk_accelerator_get_default_mod_mask (void)
1183 return default_accel_mod_mask;