1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 #include "gtkaccelerator.h"
20 #include "gtksignal.h"
21 #include "gtkwidget.h"
24 typedef struct _GtkAcceleratorEntry GtkAcceleratorEntry;
26 struct _GtkAcceleratorEntry
34 static void gtk_accelerator_table_init (GtkAcceleratorTable *table);
35 static void gtk_accelerator_table_clean (GtkAcceleratorTable *table);
38 static GtkAcceleratorTable *default_table = NULL;
39 static GSList *tables = NULL;
40 static guint8 gtk_accelerator_table_default_mod_mask = ~0;
44 gtk_accelerator_table_new ()
46 GtkAcceleratorTable *table;
48 table = g_new (GtkAcceleratorTable, 1);
49 gtk_accelerator_table_init (table);
51 tables = g_slist_prepend (tables, table);
57 gtk_accelerator_table_find (GtkObject *object,
58 const gchar *signal_name,
59 guchar accelerator_key,
60 guint8 accelerator_mods)
62 GtkAcceleratorTable *table;
63 GtkAcceleratorEntry *entry;
69 g_return_val_if_fail (object != NULL, NULL);
70 g_return_val_if_fail (signal_name != NULL, NULL);
72 signal_num = gtk_signal_lookup (signal_name, GTK_OBJECT_TYPE (object));
73 hash = (guint) accelerator_key;
78 table = tmp_list->data;
79 tmp_list = tmp_list->next;
81 entries = table->entries[hash];
84 entry = entries->data;
85 entries = entries->next;
87 if ((entry->object == object) &&
88 (entry->signal_num == signal_num) &&
89 ((entry->modifiers & table->modifier_mask) ==
90 (accelerator_mods & table->modifier_mask)))
99 gtk_accelerator_table_ref (GtkAcceleratorTable *table)
101 g_return_val_if_fail (table != NULL, NULL);
103 table->ref_count += 1;
108 gtk_accelerator_table_unref (GtkAcceleratorTable *table)
110 g_return_if_fail (table != NULL);
112 table->ref_count -= 1;
113 if (table->ref_count <= 0)
115 tables = g_slist_remove (tables, table);
116 gtk_accelerator_table_clean (table);
122 gtk_accelerator_table_install (GtkAcceleratorTable *table,
124 const gchar *signal_name,
125 guchar accelerator_key,
126 guint8 accelerator_mods)
128 GtkAcceleratorEntry *entry;
134 g_return_if_fail (object != NULL);
139 default_table = gtk_accelerator_table_new ();
140 table = default_table;
143 signal_num = gtk_signal_lookup (signal_name, GTK_OBJECT_TYPE (object));
144 g_return_if_fail (signal_num != 0);
146 hash = (guint) accelerator_key;
147 entries = table->entries[hash];
151 entry = entries->data;
153 if ((entry->modifiers & table->modifier_mask) ==
154 (accelerator_mods & table->modifier_mask))
156 if (GTK_IS_WIDGET (entry->object))
158 signame = gtk_signal_name (entry->signal_num);
159 gtk_signal_emit_by_name (entry->object,
160 "remove_accelerator",
164 entry->modifiers = accelerator_mods;
165 entry->object = object;
166 entry->signal_num = signal_num;
170 entries = entries->next;
173 entry = g_new (GtkAcceleratorEntry, 1);
174 entry->modifiers = accelerator_mods;
175 entry->object = object;
176 entry->signal_num = signal_num;
178 table->entries[hash] = g_list_prepend (table->entries[hash], entry);
182 gtk_accelerator_table_remove (GtkAcceleratorTable *table,
184 const gchar *signal_name)
186 GtkAcceleratorEntry *entry;
192 g_return_if_fail (object != NULL);
197 default_table = gtk_accelerator_table_new ();
198 table = default_table;
201 signal_num = gtk_signal_lookup (signal_name, GTK_OBJECT_TYPE (object));
202 g_return_if_fail (signal_num != 0);
204 for (i = 0; i < 256; i++)
206 entries = table->entries[i];
210 entry = entries->data;
212 if ((entry->object == object) && (entry->signal_num == signal_num))
218 entries->next->prev = entries->prev;
220 entries->prev->next = entries->next;
221 if (table->entries[i] == entries)
222 table->entries[i] = entries->next;
224 temp_list->next = NULL;
225 temp_list->prev = NULL;
226 g_list_free (temp_list);
231 entries = entries->next;
237 gtk_accelerator_table_check (GtkAcceleratorTable *table,
238 const guchar accelerator_key,
239 guint8 accelerator_mods)
241 GtkAcceleratorEntry *entry;
248 default_table = gtk_accelerator_table_new ();
249 table = default_table;
252 hash = (guint) accelerator_key;
253 entries = table->entries[hash];
257 entry = entries->data;
259 if ((entry->modifiers & table->modifier_mask) ==
260 (accelerator_mods & table->modifier_mask))
262 gtk_signal_emit (entry->object, entry->signal_num);
266 entries = entries->next;
271 hash = toupper (hash);
272 entries = table->entries[hash];
276 entry = entries->data;
278 if (((entry->modifiers & table->modifier_mask) ==
279 (accelerator_mods & table->modifier_mask)) &&
280 (GTK_IS_WIDGET (entry->object) &&
281 GTK_WIDGET_SENSITIVE (entry->object)))
283 gtk_signal_emit (entry->object, entry->signal_num);
287 entries = entries->next;
295 gtk_accelerator_table_set_mod_mask (GtkAcceleratorTable *table,
296 guint8 modifier_mask)
300 gtk_accelerator_table_default_mod_mask = modifier_mask;
304 table->modifier_mask = modifier_mask;
309 gtk_accelerator_table_init (GtkAcceleratorTable *table)
313 g_return_if_fail (table != NULL);
315 for (i = 0; i < 256; i++)
316 table->entries[i] = NULL;
318 table->ref_count = 1;
319 table->modifier_mask = gtk_accelerator_table_default_mod_mask;
323 gtk_accelerator_table_clean (GtkAcceleratorTable *table)
325 GtkAcceleratorEntry *entry;
329 g_return_if_fail (table != NULL);
331 for (i = 0; i < 256; i++)
333 entries = table->entries[i];
336 entry = entries->data;
337 entries = entries->next;
342 g_list_free (table->entries[i]);
343 table->entries[i] = NULL;