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/.
26 #include "gtkaccelgroup.h"
27 #include "gtkaccelmap.h"
28 #include "gdk/gdkkeysyms.h"
29 #include "gtkmarshalers.h"
30 #include "gtksignal.h"
36 /* --- prototypes --- */
37 static void gtk_accel_group_class_init (GtkAccelGroupClass *class);
38 static void gtk_accel_group_init (GtkAccelGroup *accel_group);
39 static void gtk_accel_group_finalize (GObject *object);
42 /* --- variables --- */
43 static GObjectClass *parent_class = NULL;
44 static guint signal_accel_activate = 0;
45 static guint signal_accel_changed = 0;
46 static guint quark_acceleratable_groups = 0;
47 static guint default_accel_mod_mask = (GDK_SHIFT_MASK |
52 /* --- functions --- */
54 * gtk_accel_group_get_type:
55 * @returns: the type ID for accelerator groups.
58 gtk_accel_group_get_type (void)
60 static GType object_type = 0;
64 static const GTypeInfo object_info = {
65 sizeof (GtkAccelGroupClass),
67 (GBaseFinalizeFunc) NULL,
68 (GClassInitFunc) gtk_accel_group_class_init,
69 NULL, /* clas_finalize */
70 NULL, /* class_data */
71 sizeof (GtkAccelGroup),
73 (GInstanceInitFunc) gtk_accel_group_init,
76 object_type = g_type_register_static (G_TYPE_OBJECT,
85 accel_activate_accumulator (GSignalInvocationHint *ihint,
87 const GValue *handler_return,
90 gboolean continue_emission;
93 /* handler returns whether the accelerator was handled */
94 handler_val = g_value_get_boolean (handler_return);
96 /* record that as result for this emission */
97 g_value_set_boolean (return_accu, handler_val);
99 /* don't continue if accelerator was handled */
100 continue_emission = !handler_val;
102 return continue_emission;
106 gtk_accel_group_class_init (GtkAccelGroupClass *class)
108 GObjectClass *object_class = G_OBJECT_CLASS (class);
110 parent_class = g_type_class_peek_parent (class);
112 quark_acceleratable_groups = g_quark_from_static_string ("gtk-acceleratable-accel-groups");
114 object_class->finalize = gtk_accel_group_finalize;
116 class->accel_changed = NULL;
117 signal_accel_activate = g_signal_new ("accel_activate",
118 G_OBJECT_CLASS_TYPE (class),
121 accel_activate_accumulator, NULL,
122 _gtk_marshal_BOOLEAN__OBJECT_UINT_UINT,
123 G_TYPE_BOOLEAN, 3, G_TYPE_OBJECT, G_TYPE_UINT, G_TYPE_UINT);
124 signal_accel_changed = g_signal_new ("accel_changed",
125 G_OBJECT_CLASS_TYPE (class),
126 G_SIGNAL_RUN_FIRST | G_SIGNAL_DETAILED,
127 G_STRUCT_OFFSET (GtkAccelGroupClass, accel_changed),
129 _gtk_marshal_VOID__UINT_UINT_BOXED,
130 G_TYPE_NONE, 3, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_CLOSURE);
134 gtk_accel_group_finalize (GObject *object)
136 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (object);
139 for (i = 0; i < accel_group->n_accels; i++)
141 GtkAccelGroupEntry *entry = &accel_group->priv_accels[i];
143 if (entry->accel_path_quark)
145 const gchar *accel_path = g_quark_to_string (entry[i].accel_path_quark);
147 _gtk_accel_map_remove_group (accel_path, accel_group);
151 g_free (accel_group->priv_accels);
153 G_OBJECT_CLASS (parent_class)->finalize (object);
157 gtk_accel_group_init (GtkAccelGroup *accel_group)
159 accel_group->lock_count = 0;
160 accel_group->modifier_mask = gtk_accelerator_get_default_mod_mask ();
161 accel_group->acceleratables = NULL;
162 accel_group->n_accels = 0;
163 accel_group->priv_accels = NULL;
167 * gtk_accel_group_new:
168 * @returns: a new #GtkAccelGroup object
170 * Creates a new #GtkAccelGroup.
173 gtk_accel_group_new (void)
175 return g_object_new (GTK_TYPE_ACCEL_GROUP, NULL);
179 accel_group_weak_ref_detach (GSList *free_list,
180 GObject *stale_object)
184 for (slist = free_list; slist; slist = slist->next)
186 GtkAccelGroup *accel_group;
188 accel_group = slist->data;
189 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, stale_object);
190 g_object_unref (accel_group);
192 g_slist_free (free_list);
193 g_object_set_qdata (stale_object, quark_acceleratable_groups, NULL);
197 _gtk_accel_group_attach (GtkAccelGroup *accel_group,
202 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
203 g_return_if_fail (G_IS_OBJECT (object));
204 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) == NULL);
206 g_object_ref (accel_group);
207 accel_group->acceleratables = g_slist_prepend (accel_group->acceleratables, object);
208 slist = g_object_get_qdata (object, quark_acceleratable_groups);
210 g_object_weak_unref (object,
211 (GWeakNotify) accel_group_weak_ref_detach,
213 slist = g_slist_prepend (slist, accel_group);
214 g_object_set_qdata (object, quark_acceleratable_groups, slist);
215 g_object_weak_ref (object,
216 (GWeakNotify) accel_group_weak_ref_detach,
221 _gtk_accel_group_detach (GtkAccelGroup *accel_group,
226 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
227 g_return_if_fail (G_IS_OBJECT (object));
228 g_return_if_fail (g_slist_find (accel_group->acceleratables, object) != NULL);
230 accel_group->acceleratables = g_slist_remove (accel_group->acceleratables, object);
231 slist = g_object_get_qdata (object, quark_acceleratable_groups);
232 g_object_weak_unref (object,
233 (GWeakNotify) accel_group_weak_ref_detach,
235 slist = g_slist_remove (slist, accel_group);
236 g_object_set_qdata (object, quark_acceleratable_groups, slist);
238 g_object_weak_ref (object,
239 (GWeakNotify) accel_group_weak_ref_detach,
241 g_object_unref (accel_group);
245 * gtk_accel_groups_from_object:
246 * @object: a #GObject, usually a #GtkWindow
247 * @returns: a list of all accel groups which are attached to @object
249 * Gets a list of all accel groups which are attached to @object.
252 gtk_accel_groups_from_object (GObject *object)
254 g_return_val_if_fail (G_IS_OBJECT (object), NULL);
256 return g_object_get_qdata (object, quark_acceleratable_groups);
260 * gtk_accel_group_find:
261 * @accel_group: a #GtkAccelGroup
262 * @find_func: a function to filter the entries of @accel_group with
263 * @data: data to pass to @find_func
264 * @returns: the key of the first entry passing @find_func. The key is
265 * owned by GTK+ and must not be freed.
267 * Finds the first entry in an accelerator group for which
268 * @find_func returns %TRUE and returns its #GtkAccelKey.
272 gtk_accel_group_find (GtkAccelGroup *accel_group,
273 gboolean (*find_func) (GtkAccelKey *key,
278 GtkAccelKey *key = NULL;
281 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
282 g_return_val_if_fail (find_func != NULL, NULL);
284 g_object_ref (accel_group);
285 for (i = 0; i < accel_group->n_accels; i++)
286 if (find_func (&accel_group->priv_accels[i].key,
287 accel_group->priv_accels[i].closure,
290 key = &accel_group->priv_accels[i].key;
293 g_object_unref (accel_group);
299 * gtk_accel_group_lock:
300 * @accel_group: a #GtkAccelGroup
302 * Locks the given accelerator group.
304 * Locking an acelerator group prevents the accelerators contained
305 * within it to be changed during runtime. Refer to
306 * gtk_accel_map_change_entry() about runtime accelerator changes.
308 * If called more than once, @accel_group remains locked until
309 * gtk_accel_group_unlock() has been called an equivalent number
313 gtk_accel_group_lock (GtkAccelGroup *accel_group)
315 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
317 accel_group->lock_count += 1;
321 * gtk_accel_group_unlock:
322 * @accel_group: a #GtkAccelGroup
324 * Undoes the last call to gtk_accel_group_lock() on this @accel_group.
327 gtk_accel_group_unlock (GtkAccelGroup *accel_group)
329 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
330 g_return_if_fail (accel_group->lock_count > 0);
332 accel_group->lock_count -= 1;
336 accel_closure_invalidate (gpointer data,
339 GtkAccelGroup *accel_group = GTK_ACCEL_GROUP (data);
341 gtk_accel_group_disconnect (accel_group, closure);
345 bsearch_compare_accels (const void *d1,
348 const GtkAccelGroupEntry *entry1 = d1;
349 const GtkAccelGroupEntry *entry2 = d2;
351 if (entry1->key.accel_key == entry2->key.accel_key)
352 return entry1->key.accel_mods < entry2->key.accel_mods ? -1 : entry1->key.accel_mods > entry2->key.accel_mods;
354 return entry1->key.accel_key < entry2->key.accel_key ? -1 : 1;
358 quick_accel_add (GtkAccelGroup *accel_group,
360 GdkModifierType accel_mods,
361 GtkAccelFlags accel_flags,
365 guint pos, i = accel_group->n_accels++;
366 GtkAccelGroupEntry key;
369 key.key.accel_key = accel_key;
370 key.key.accel_mods = accel_mods;
371 for (pos = 0; pos < i; pos++)
372 if (bsearch_compare_accels (&key, accel_group->priv_accels + pos) < 0)
375 /* insert at position, ref closure */
376 accel_group->priv_accels = g_renew (GtkAccelGroupEntry, accel_group->priv_accels, accel_group->n_accels);
377 g_memmove (accel_group->priv_accels + pos + 1, accel_group->priv_accels + pos,
378 (i - pos) * sizeof (accel_group->priv_accels[0]));
379 accel_group->priv_accels[pos].key.accel_key = accel_key;
380 accel_group->priv_accels[pos].key.accel_mods = accel_mods;
381 accel_group->priv_accels[pos].key.accel_flags = accel_flags;
382 accel_group->priv_accels[pos].closure = g_closure_ref (closure);
383 accel_group->priv_accels[pos].accel_path_quark = path_quark;
384 g_closure_sink (closure);
386 /* handle closure invalidation and reverse lookups */
387 g_closure_add_invalidate_notifier (closure, accel_group, accel_closure_invalidate);
389 /* get accel path notification */
391 _gtk_accel_map_add_group (g_quark_to_string (path_quark), accel_group);
393 /* connect and notify changed */
396 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
397 GQuark accel_quark = g_quark_from_string (accel_name);
402 g_signal_connect_closure_by_id (accel_group, signal_accel_activate, accel_quark, closure, FALSE);
405 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
410 quick_accel_remove (GtkAccelGroup *accel_group,
411 GtkAccelGroupEntry *entry)
413 guint pos = entry - accel_group->priv_accels;
414 GQuark accel_quark = 0;
415 guint accel_key = entry->key.accel_key;
416 GdkModifierType accel_mods = entry->key.accel_mods;
417 GClosure *closure = entry->closure;
419 /* quark for notification */
422 gchar *accel_name = gtk_accelerator_name (accel_key, accel_mods);
424 accel_quark = g_quark_from_string (accel_name);
428 /* clean up closure invalidate notification and disconnect */
429 g_closure_remove_invalidate_notifier (entry->closure, accel_group, accel_closure_invalidate);
431 g_signal_handlers_disconnect_matched (accel_group,
432 G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DETAIL | G_SIGNAL_MATCH_CLOSURE,
433 signal_accel_activate, accel_quark,
434 closure, NULL, NULL);
435 /* clean up accel path notification */
436 if (entry->accel_path_quark)
437 _gtk_accel_map_remove_group (g_quark_to_string (entry->accel_path_quark), accel_group);
439 /* physically remove */
440 accel_group->n_accels -= 1;
441 g_memmove (entry, entry + 1,
442 (accel_group->n_accels - pos) * sizeof (accel_group->priv_accels[0]));
446 g_signal_emit (accel_group, signal_accel_changed, accel_quark, accel_key, accel_mods, closure);
448 /* remove quick_accel_add() refcount */
449 g_closure_unref (closure);
452 static GtkAccelGroupEntry*
453 quick_accel_find (GtkAccelGroup *accel_group,
455 GdkModifierType accel_mods,
458 GtkAccelGroupEntry *entry;
459 GtkAccelGroupEntry key;
461 if (!accel_group->n_accels)
464 key.key.accel_key = accel_key;
465 key.key.accel_mods = accel_mods;
466 entry = bsearch (&key, accel_group->priv_accels, accel_group->n_accels,
467 sizeof (accel_group->priv_accels[0]), bsearch_compare_accels);
472 /* step back to the first member */
473 for (; entry > accel_group->priv_accels; entry--)
474 if (entry[-1].key.accel_key != accel_key ||
475 entry[-1].key.accel_mods != accel_mods)
477 /* count equal members */
478 for (*count_p = 0; entry + *count_p < accel_group->priv_accels + accel_group->n_accels; (*count_p)++)
479 if (entry[*count_p].key.accel_key != accel_key ||
480 entry[*count_p].key.accel_mods != accel_mods)
486 * gtk_accel_group_connect:
487 * @accel_group: the accelerator group to install an accelerator in
488 * @accel_key: key value of the accelerator
489 * @accel_mods: modifier combination of the accelerator
490 * @accel_flags: a flag mask to configure this accelerator
491 * @closure: closure to be executed upon accelerator activation
493 * Installs an accelerator in this group. When @accel_group is being activated
494 * in response to a call to gtk_accel_groups_activate(), @closure will be
495 * invoked if the @accel_key and @accel_mods from gtk_accel_groups_activate()
496 * match those of this connection.
498 * The signature used for the @closure is that of #GtkAccelGroupActivate.
500 * Note that, due to implementation details, a single closure can only be
501 * connected to one accelerator group.
504 gtk_accel_group_connect (GtkAccelGroup *accel_group,
506 GdkModifierType accel_mods,
507 GtkAccelFlags accel_flags,
510 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
511 g_return_if_fail (closure != NULL);
512 g_return_if_fail (accel_key > 0);
513 g_return_if_fail (gtk_accel_group_from_accel_closure (closure) == NULL);
515 g_object_ref (accel_group);
516 if (!closure->is_invalid)
517 quick_accel_add (accel_group,
518 gdk_keyval_to_lower (accel_key),
519 accel_mods, accel_flags, closure, 0);
520 g_object_unref (accel_group);
524 * gtk_accel_group_connect_by_path:
525 * @accel_group: the accelerator group to install an accelerator in
526 * @accel_path: path used for determining key and modifiers.
527 * @closure: closure to be executed upon accelerator activation
529 * Installs an accelerator in this group, using an accelerator path to look
530 * up the appropriate key and modifiers (see gtk_accel_map_add_entry()).
531 * When @accel_group is being activated in response to a call to
532 * gtk_accel_groups_activate(), @closure will be invoked if the @accel_key and
533 * @accel_mods from gtk_accel_groups_activate() match the key and modifiers
536 * The signature used for the @closure is that of #GtkAccelGroupActivate.
539 gtk_accel_group_connect_by_path (GtkAccelGroup *accel_group,
540 const gchar *accel_path,
544 GdkModifierType accel_mods = 0;
547 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
548 g_return_if_fail (closure != NULL);
549 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
551 if (closure->is_invalid)
554 g_object_ref (accel_group);
556 if (gtk_accel_map_lookup_entry (accel_path, &key))
558 accel_key = gdk_keyval_to_lower (key.accel_key);
559 accel_mods = key.accel_mods;
562 quick_accel_add (accel_group, accel_key, accel_mods, GTK_ACCEL_VISIBLE, closure,
563 g_quark_from_string (accel_path));
565 g_object_unref (accel_group);
569 * gtk_accel_group_disconnect:
570 * @accel_group: the accelerator group to remove an accelerator from
571 * @closure: the closure to remove from this accelerator group
572 * @returns: %TRUE if the closure was found and got disconnected
574 * Removes an accelerator previously installed through
575 * gtk_accel_group_connect().
578 gtk_accel_group_disconnect (GtkAccelGroup *accel_group,
583 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
585 for (i = 0; i < accel_group->n_accels; i++)
586 if (accel_group->priv_accels[i].closure == closure)
588 g_object_ref (accel_group);
589 quick_accel_remove (accel_group, accel_group->priv_accels + i);
590 g_object_unref (accel_group);
597 * gtk_accel_group_disconnect_key:
598 * @accel_group: the accelerator group to install an accelerator in
599 * @accel_key: key value of the accelerator
600 * @accel_mods: modifier combination of the accelerator
601 * @returns: %TRUE if there was an accelerator which could be
602 * removed, %FALSE otherwise
604 * Removes an accelerator previously installed through
605 * gtk_accel_group_connect().
608 gtk_accel_group_disconnect_key (GtkAccelGroup *accel_group,
610 GdkModifierType accel_mods)
612 GtkAccelGroupEntry *entries;
613 GSList *slist, *clist = NULL;
614 gboolean removed_one = FALSE;
617 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
619 g_object_ref (accel_group);
621 accel_key = gdk_keyval_to_lower (accel_key);
622 entries = quick_accel_find (accel_group, accel_key, accel_mods, &n);
625 GClosure *closure = g_closure_ref (entries[n].closure);
627 clist = g_slist_prepend (clist, closure);
630 for (slist = clist; slist; slist = slist->next)
632 GClosure *closure = slist->data;
634 removed_one |= gtk_accel_group_disconnect (accel_group, closure);
635 g_closure_unref (closure);
637 g_slist_free (clist);
639 g_object_unref (accel_group);
645 _gtk_accel_group_reconnect (GtkAccelGroup *accel_group,
646 GQuark accel_path_quark)
648 GSList *slist, *clist = NULL;
651 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
653 g_object_ref (accel_group);
655 for (i = 0; i < accel_group->n_accels; i++)
656 if (accel_group->priv_accels[i].accel_path_quark == accel_path_quark)
658 GClosure *closure = g_closure_ref (accel_group->priv_accels[i].closure);
660 clist = g_slist_prepend (clist, closure);
663 for (slist = clist; slist; slist = slist->next)
665 GClosure *closure = slist->data;
667 gtk_accel_group_disconnect (accel_group, closure);
668 gtk_accel_group_connect_by_path (accel_group, g_quark_to_string (accel_path_quark), closure);
669 g_closure_unref (closure);
671 g_slist_free (clist);
673 g_object_unref (accel_group);
677 * gtk_accel_group_query:
678 * @accel_group: the accelerator group to query
679 * @accel_key: key value of the accelerator
680 * @accel_mods: modifier combination of the accelerator
681 * @n_entries: location to return the number of entries found, or %NULL
682 * @returns: an array of @n_entries #GtkAccelGroupEntry elements, or %NULL. The array is owned by GTK+ and must not be freed.
684 * Queries an accelerator group for all entries matching @accel_key and
688 gtk_accel_group_query (GtkAccelGroup *accel_group,
690 GdkModifierType accel_mods,
693 GtkAccelGroupEntry *entries;
696 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), NULL);
698 entries = quick_accel_find (accel_group, accel_key, accel_mods, &n);
701 *n_entries = entries ? n : 0;
707 * gtk_accel_group_from_accel_closure:
708 * @closure: a #GClosure
709 * @returns: the #GtkAccelGroup to which @closure is connected, or %NULL.
711 * Finds the #GtkAccelGroup to which @closure is connected;
712 * see gtk_accel_group_connect().
715 gtk_accel_group_from_accel_closure (GClosure *closure)
719 g_return_val_if_fail (closure != NULL, NULL);
721 /* a few remarks on what we do here. in general, we need a way to reverse lookup
722 * accel_groups from closures that are being used in accel groups. this could
723 * be done e.g via a hashtable. it is however cheaper (memory wise) to just
724 * use the invalidation notifier on the closure itself (which we need to install
725 * anyway), that contains the accel group as data which, besides needing to peek
726 * a bit at closure internals, works just as good.
728 for (i = 0; i < G_CLOSURE_N_NOTIFIERS (closure); i++)
729 if (closure->notifiers[i].notify == accel_closure_invalidate)
730 return closure->notifiers[i].data;
736 _gtk_accel_group_activate (GtkAccelGroup *accel_group,
738 GObject *acceleratable,
740 GdkModifierType accel_mods)
742 gboolean was_handled;
744 g_return_val_if_fail (GTK_IS_ACCEL_GROUP (accel_group), FALSE);
747 g_signal_emit (accel_group, signal_accel_activate, accel_quark,
748 acceleratable, accel_key, accel_mods, &was_handled);
754 * gtk_accel_groups_activate:
755 * @object: the #GObject, usually a #GtkWindow, on which
756 * to activate the accelerator.
757 * @accel_key: accelerator keyval from a key event
758 * @accel_mods: keyboard state mask from a key event
759 * @returns: %TRUE if the accelerator was handled, %FALSE otherwise
761 * Finds the first accelerator in any #GtkAccelGroup attached
762 * to @object that matches @accel_key and @accel_mods, and
763 * activates that accelerator.
764 * If an accelerator was activated and handled this keypress, %TRUE
768 gtk_accel_groups_activate (GObject *object,
770 GdkModifierType accel_mods)
772 g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
774 if (gtk_accelerator_valid (accel_key, accel_mods))
780 accel_name = gtk_accelerator_name (accel_key, (accel_mods & gtk_accelerator_get_default_mod_mask ()));
781 accel_quark = g_quark_from_string (accel_name);
784 for (slist = gtk_accel_groups_from_object (object); slist; slist = slist->next)
785 if (_gtk_accel_group_activate (slist->data, accel_quark, object, accel_key, accel_mods))
793 * gtk_accelerator_valid:
794 * @keyval: a GDK keyval
795 * @modifiers: modifier mask
796 * @returns: %TRUE if the accelerator is valid
798 * Determines whether a given keyval and modifier mask constitute
799 * a valid keyboard accelerator. For example, the #GDK_a keyval
800 * plus #GDK_CONTROL_MASK is valid - this is a "Ctrl+a" accelerator.
801 * But by default (see gtk_accelerator_set_default_mod_mask()) you
802 * cannot use the NumLock key as an accelerator modifier.
805 gtk_accelerator_valid (guint keyval,
806 GdkModifierType modifiers)
808 static const guint invalid_accelerator_vals[] = {
809 GDK_Shift_L, GDK_Shift_R, GDK_Shift_Lock, GDK_Caps_Lock, GDK_ISO_Lock,
810 GDK_Control_L, GDK_Control_R, GDK_Meta_L, GDK_Meta_R,
811 GDK_Alt_L, GDK_Alt_R, GDK_Super_L, GDK_Super_R, GDK_Hyper_L, GDK_Hyper_R,
812 GDK_ISO_Level3_Shift, GDK_ISO_Next_Group, GDK_ISO_Prev_Group,
813 GDK_ISO_First_Group, GDK_ISO_Last_Group,
814 GDK_Mode_switch, GDK_Num_Lock, GDK_Multi_key,
815 GDK_Scroll_Lock, GDK_Sys_Req,
816 GDK_Up, GDK_Down, GDK_Left, GDK_Right, GDK_Tab, GDK_ISO_Left_Tab,
817 GDK_KP_Up, GDK_KP_Down, GDK_KP_Left, GDK_KP_Right, GDK_KP_Tab,
818 GDK_First_Virtual_Screen, GDK_Prev_Virtual_Screen,
819 GDK_Next_Virtual_Screen, GDK_Last_Virtual_Screen,
820 GDK_Terminate_Server, GDK_AudibleBell_Enable,
825 modifiers &= GDK_MODIFIER_MASK;
828 return keyval >= 0x20;
830 ac_val = invalid_accelerator_vals;
833 if (keyval == *ac_val++)
840 static inline gboolean
841 is_alt (const gchar *string)
843 return ((string[0] == '<') &&
844 (string[1] == 'a' || string[1] == 'A') &&
845 (string[2] == 'l' || string[2] == 'L') &&
846 (string[3] == 't' || string[3] == 'T') &&
850 static inline gboolean
851 is_ctl (const gchar *string)
853 return ((string[0] == '<') &&
854 (string[1] == 'c' || string[1] == 'C') &&
855 (string[2] == 't' || string[2] == 'T') &&
856 (string[3] == 'l' || string[3] == 'L') &&
860 static inline gboolean
861 is_modx (const gchar *string)
863 return ((string[0] == '<') &&
864 (string[1] == 'm' || string[1] == 'M') &&
865 (string[2] == 'o' || string[2] == 'O') &&
866 (string[3] == 'd' || string[3] == 'D') &&
867 (string[4] >= '1' && string[4] <= '5') &&
871 static inline gboolean
872 is_ctrl (const gchar *string)
874 return ((string[0] == '<') &&
875 (string[1] == 'c' || string[1] == 'C') &&
876 (string[2] == 't' || string[2] == 'T') &&
877 (string[3] == 'r' || string[3] == 'R') &&
878 (string[4] == 'l' || string[4] == 'L') &&
882 static inline gboolean
883 is_shft (const gchar *string)
885 return ((string[0] == '<') &&
886 (string[1] == 's' || string[1] == 'S') &&
887 (string[2] == 'h' || string[2] == 'H') &&
888 (string[3] == 'f' || string[3] == 'F') &&
889 (string[4] == 't' || string[4] == 'T') &&
893 static inline gboolean
894 is_shift (const gchar *string)
896 return ((string[0] == '<') &&
897 (string[1] == 's' || string[1] == 'S') &&
898 (string[2] == 'h' || string[2] == 'H') &&
899 (string[3] == 'i' || string[3] == 'I') &&
900 (string[4] == 'f' || string[4] == 'F') &&
901 (string[5] == 't' || string[5] == 'T') &&
905 static inline gboolean
906 is_control (const gchar *string)
908 return ((string[0] == '<') &&
909 (string[1] == 'c' || string[1] == 'C') &&
910 (string[2] == 'o' || string[2] == 'O') &&
911 (string[3] == 'n' || string[3] == 'N') &&
912 (string[4] == 't' || string[4] == 'T') &&
913 (string[5] == 'r' || string[5] == 'R') &&
914 (string[6] == 'o' || string[6] == 'O') &&
915 (string[7] == 'l' || string[7] == 'L') &&
919 static inline gboolean
920 is_release (const gchar *string)
922 return ((string[0] == '<') &&
923 (string[1] == 'r' || string[1] == 'R') &&
924 (string[2] == 'e' || string[2] == 'E') &&
925 (string[3] == 'l' || string[3] == 'L') &&
926 (string[4] == 'e' || string[4] == 'E') &&
927 (string[5] == 'a' || string[5] == 'A') &&
928 (string[6] == 's' || string[6] == 'S') &&
929 (string[7] == 'e' || string[7] == 'E') &&
934 * gtk_accelerator_parse:
935 * @accelerator: string representing an accelerator
936 * @accelerator_key: return location for accelerator keyval
937 * @accelerator_mods: return location for accelerator modifier mask
939 * Parses a string representing an accelerator. The
940 * format looks like "<Control>a" or "<Shift><Alt>F1" or
941 * "<Release>z" (the last one is for key release).
942 * The parser is fairly liberal and allows lower or upper case,
943 * and also abbreviations such as "<Ctl>" and "<Ctrl>".
945 * If the parse fails, @accelerator_key and @accelerator_mods will
946 * be set to 0 (zero).
949 gtk_accelerator_parse (const gchar *accelerator,
950 guint *accelerator_key,
951 GdkModifierType *accelerator_mods)
954 GdkModifierType mods;
958 *accelerator_key = 0;
959 if (accelerator_mods)
960 *accelerator_mods = 0;
961 g_return_if_fail (accelerator != NULL);
965 len = strlen (accelerator);
968 if (*accelerator == '<')
970 if (len >= 9 && is_release (accelerator))
974 mods |= GDK_RELEASE_MASK;
976 else if (len >= 9 && is_control (accelerator))
980 mods |= GDK_CONTROL_MASK;
982 else if (len >= 7 && is_shift (accelerator))
986 mods |= GDK_SHIFT_MASK;
988 else if (len >= 6 && is_shft (accelerator))
992 mods |= GDK_SHIFT_MASK;
994 else if (len >= 6 && is_ctrl (accelerator))
998 mods |= GDK_CONTROL_MASK;
1000 else if (len >= 6 && is_modx (accelerator))
1002 static const guint mod_vals[] = {
1003 GDK_MOD1_MASK, GDK_MOD2_MASK, GDK_MOD3_MASK,
1004 GDK_MOD4_MASK, GDK_MOD5_MASK
1009 mods |= mod_vals[*accelerator - '1'];
1012 else if (len >= 5 && is_ctl (accelerator))
1016 mods |= GDK_CONTROL_MASK;
1018 else if (len >= 5 && is_alt (accelerator))
1022 mods |= GDK_MOD1_MASK;
1028 last_ch = *accelerator;
1029 while (last_ch && last_ch != '>')
1031 last_ch = *accelerator;
1039 keyval = gdk_keyval_from_name (accelerator);
1045 if (accelerator_key)
1046 *accelerator_key = gdk_keyval_to_lower (keyval);
1047 if (accelerator_mods)
1048 *accelerator_mods = mods;
1052 * gtk_accelerator_name:
1053 * @accelerator_key: accelerator keyval
1054 * @accelerator_mods: accelerator modifier mask
1055 * @returns: a newly-allocated accelerator name
1057 * Converts an accelerator keyval and modifier mask
1058 * into a string parseable by gtk_accelerator_parse().
1059 * For example, if you pass in #GDK_q and #GDK_CONTROL_MASK,
1060 * this function returns "<Control>q".
1062 * The caller of this function must free the returned string.
1065 gtk_accelerator_name (guint accelerator_key,
1066 GdkModifierType accelerator_mods)
1068 static const gchar text_release[] = "<Release>";
1069 static const gchar text_shift[] = "<Shift>";
1070 static const gchar text_control[] = "<Control>";
1071 static const gchar text_mod1[] = "<Alt>";
1072 static const gchar text_mod2[] = "<Mod2>";
1073 static const gchar text_mod3[] = "<Mod3>";
1074 static const gchar text_mod4[] = "<Mod4>";
1075 static const gchar text_mod5[] = "<Mod5>";
1080 accelerator_mods &= GDK_MODIFIER_MASK;
1082 keyval_name = gdk_keyval_name (gdk_keyval_to_lower (accelerator_key));
1087 if (accelerator_mods & GDK_RELEASE_MASK)
1088 l += sizeof (text_release) - 1;
1089 if (accelerator_mods & GDK_SHIFT_MASK)
1090 l += sizeof (text_shift) - 1;
1091 if (accelerator_mods & GDK_CONTROL_MASK)
1092 l += sizeof (text_control) - 1;
1093 if (accelerator_mods & GDK_MOD1_MASK)
1094 l += sizeof (text_mod1) - 1;
1095 if (accelerator_mods & GDK_MOD2_MASK)
1096 l += sizeof (text_mod2) - 1;
1097 if (accelerator_mods & GDK_MOD3_MASK)
1098 l += sizeof (text_mod3) - 1;
1099 if (accelerator_mods & GDK_MOD4_MASK)
1100 l += sizeof (text_mod4) - 1;
1101 if (accelerator_mods & GDK_MOD5_MASK)
1102 l += sizeof (text_mod5) - 1;
1103 l += strlen (keyval_name);
1105 accelerator = g_new (gchar, l + 1);
1109 if (accelerator_mods & GDK_RELEASE_MASK)
1111 strcpy (accelerator + l, text_release);
1112 l += sizeof (text_release) - 1;
1114 if (accelerator_mods & GDK_SHIFT_MASK)
1116 strcpy (accelerator + l, text_shift);
1117 l += sizeof (text_shift) - 1;
1119 if (accelerator_mods & GDK_CONTROL_MASK)
1121 strcpy (accelerator + l, text_control);
1122 l += sizeof (text_control) - 1;
1124 if (accelerator_mods & GDK_MOD1_MASK)
1126 strcpy (accelerator + l, text_mod1);
1127 l += sizeof (text_mod1) - 1;
1129 if (accelerator_mods & GDK_MOD2_MASK)
1131 strcpy (accelerator + l, text_mod2);
1132 l += sizeof (text_mod2) - 1;
1134 if (accelerator_mods & GDK_MOD3_MASK)
1136 strcpy (accelerator + l, text_mod3);
1137 l += sizeof (text_mod3) - 1;
1139 if (accelerator_mods & GDK_MOD4_MASK)
1141 strcpy (accelerator + l, text_mod4);
1142 l += sizeof (text_mod4) - 1;
1144 if (accelerator_mods & GDK_MOD5_MASK)
1146 strcpy (accelerator + l, text_mod5);
1147 l += sizeof (text_mod5) - 1;
1149 strcpy (accelerator + l, keyval_name);
1155 * gtk_accelerator_set_default_mod_mask:
1156 * @default_mod_mask: accelerator modifier mask
1158 * Sets the modifiers that will be considered significant for keyboard
1159 * accelerators. The default mod mask is #GDK_CONTROL_MASK |
1160 * #GDK_SHIFT_MASK | #GDK_MOD1_MASK, that is, Control, Shift, and Alt.
1161 * Other modifiers will by default be ignored by #GtkAccelGroup.
1162 * You must include at least the three default modifiers in any
1163 * value you pass to this function.
1165 * The default mod mask should be changed on application startup,
1166 * before using any accelerator groups.
1169 gtk_accelerator_set_default_mod_mask (GdkModifierType default_mod_mask)
1171 default_accel_mod_mask = (default_mod_mask & GDK_MODIFIER_MASK) |
1172 (GDK_CONTROL_MASK | GDK_SHIFT_MASK | GDK_MOD1_MASK);
1176 * gtk_accelerator_get_default_mod_mask:
1177 * @returns: the default accelerator modifier mask
1179 * Gets the value set by gtk_accelerator_set_default_mod_mask().
1182 gtk_accelerator_get_default_mod_mask (void)
1184 return default_accel_mod_mask;