1 /* gtkmnemonichash.c: Sets of mnemonics with cycling
3 * GTK - The GTK+ Toolkit
4 * Copyright (C) 2002, Red Hat Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
22 #include "gtkmnemonichash.h"
25 struct _GtkMnemnonicHash
32 _gtk_mnemonic_hash_new (void)
34 GtkMnemonicHash *mnemonic_hash = g_new (GtkMnemonicHash, 1);
36 mnemonic_hash->hash = g_hash_table_new (g_direct_hash, NULL);
42 mnemonic_hash_free_foreach (gpointer key,
46 guint keyval = GPOINTER_TO_UINT (key);
47 GSList *targets = value;
49 gchar *name = gtk_accelerator_name (keyval, 0);
51 g_warning ("mnemonic \"%s\" wasn't removed for widget (%p)",
55 g_slist_free (targets);
59 _gtk_mnemonic_hash_free (GtkMnemonicHash *mnemonic_hash)
61 g_hash_table_foreach (mnemonic_hash->hash,
62 mnemonic_hash_free_foreach,
65 g_hash_table_destroy (mnemonic_hash->hash);
66 g_free (mnemonic_hash);
70 _gtk_mnemonic_hash_add (GtkMnemonicHash *mnemonic_hash,
74 gpointer key = GUINT_TO_POINTER (keyval);
75 GSList *targets, *new_targets;
77 g_return_if_fail (GTK_IS_WIDGET (target));
79 targets = g_hash_table_lookup (mnemonic_hash->hash, key);
80 g_return_if_fail (g_slist_find (targets, target) == NULL);
82 new_targets = g_slist_append (targets, target);
83 if (new_targets != targets)
84 g_hash_table_insert (mnemonic_hash->hash, key, new_targets);
88 _gtk_mnemonic_hash_remove (GtkMnemonicHash *mnemonic_hash,
92 gpointer key = GUINT_TO_POINTER (keyval);
93 GSList *targets, *new_targets;
95 g_return_if_fail (GTK_IS_WIDGET (target));
97 targets = g_hash_table_lookup (mnemonic_hash->hash, key);
99 g_return_if_fail (targets && g_slist_find (targets, target) != NULL);
101 new_targets = g_slist_remove (targets, target);
102 if (new_targets != targets)
104 if (new_targets == NULL)
105 g_hash_table_remove (mnemonic_hash->hash, key);
107 g_hash_table_insert (mnemonic_hash->hash, key, new_targets);
112 _gtk_mnemonic_hash_activate (GtkMnemonicHash *mnemonic_hash,
115 GSList *list, *targets;
116 GtkWidget *widget, *chosen_widget;
119 targets = g_hash_table_lookup (mnemonic_hash->hash,
120 GUINT_TO_POINTER (keyval));
125 chosen_widget = NULL;
126 for (list = targets; list; list = list->next)
128 widget = GTK_WIDGET (list->data);
130 if (GTK_WIDGET_IS_SENSITIVE (widget) &&
131 GTK_WIDGET_MAPPED (widget) &&
133 gdk_window_is_viewable (widget->window))
141 chosen_widget = widget;
147 /* For round robin we put the activated entry on
148 * the end of the list after activation
150 targets = g_slist_remove (targets, chosen_widget);
151 targets = g_slist_append (targets, chosen_widget);
152 g_hash_table_insert (mnemonic_hash->hash,
153 GUINT_TO_POINTER (keyval),
156 return gtk_widget_mnemonic_activate (chosen_widget, overloaded);
162 _gtk_mnemonic_hash_lookup (GtkMnemonicHash *mnemonic_hash,
165 return g_hash_table_lookup (mnemonic_hash->hash, GUINT_TO_POINTER (keyval));
169 mnemonic_hash_foreach_func (gpointer key,
174 GtkMnemonicHashForeach func;
178 guint keyval = GPOINTER_TO_UINT (key);
179 GSList *targets = value;
181 (*info->func) (keyval, targets, info->func_data);
185 _gtk_mnemonic_hash_foreach (GtkMnemonicHash *mnemonic_hash,
186 GtkMnemonicHashForeach func,
190 GtkMnemonicHashForeach func;
195 info.func_data = func_data;
197 g_hash_table_foreach (mnemonic_hash->hash,
198 mnemonic_hash_foreach_func,