1 /* gtktoggletoolbutton.c
3 * Copyright (C) 2002 Anders Carlsson <andersca@codefactory.se>
4 * Copyright (C) 2002 James Henstridge <james@daa.com.au>
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 "gtktoggletoolbutton.h"
23 #include "gtkcheckmenuitem.h"
25 #include "gtktogglebutton.h"
29 #define MENU_ID "gtk-toggle-tool-button-menu-id"
36 struct _GtkToggleToolButtonPrivate
41 static void gtk_toggle_tool_button_init (GtkToggleToolButton *button);
42 static void gtk_toggle_tool_button_class_init (GtkToggleToolButtonClass *klass);
44 static gboolean gtk_toggle_tool_button_create_menu_proxy (GtkToolItem *button);
46 static void button_toggled (GtkWidget *widget,
47 GtkToggleToolButton *button);
48 static void menu_item_activated (GtkWidget *widget,
49 GtkToggleToolButton *button);
51 static GObjectClass *parent_class = NULL;
52 static guint toggle_signals[LAST_SIGNAL] = { 0 };
55 gtk_toggle_tool_button_get_type (void)
57 static GType type = 0;
61 static const GTypeInfo type_info =
63 sizeof (GtkToggleToolButtonClass),
65 (GBaseFinalizeFunc) 0,
66 (GClassInitFunc) gtk_toggle_tool_button_class_init,
67 (GClassFinalizeFunc) 0,
69 sizeof (GtkToggleToolButton),
71 (GInstanceInitFunc) gtk_toggle_tool_button_init
74 type = g_type_register_static (GTK_TYPE_TOOL_BUTTON,
75 "GtkToggleToolButton", &type_info, 0);
82 gtk_toggle_tool_button_class_init (GtkToggleToolButtonClass *klass)
84 GObjectClass *object_class;
85 GtkToolItemClass *toolitem_class;
86 GtkToolButtonClass *toolbutton_class;
88 parent_class = g_type_class_peek_parent (klass);
90 object_class = (GObjectClass *)klass;
91 toolitem_class = (GtkToolItemClass *)klass;
92 toolbutton_class = (GtkToolButtonClass *)klass;
94 toolitem_class->create_menu_proxy = gtk_toggle_tool_button_create_menu_proxy;
95 toolbutton_class->button_type = GTK_TYPE_TOGGLE_BUTTON;
98 * GtkToggleToolButton::toggled:
99 * @toggle_tool_button: the object that emitted the signal
101 * Emitted whenever the toggle tool button changes state.
103 toggle_signals[TOGGLED] =
104 g_signal_new ("toggled",
105 G_OBJECT_CLASS_TYPE (klass),
107 G_STRUCT_OFFSET (GtkToggleToolButtonClass, toggled),
109 g_cclosure_marshal_VOID__VOID,
112 g_type_class_add_private (object_class, sizeof (GtkToggleToolButtonPrivate));
116 gtk_toggle_tool_button_init (GtkToggleToolButton *button)
118 button->priv = GTK_TOGGLE_TOOL_BUTTON_GET_PRIVATE (button);
120 g_signal_connect_object (_gtk_tool_button_get_button (GTK_TOOL_BUTTON (button)),
121 "toggled", G_CALLBACK (button_toggled), button, 0);
125 gtk_toggle_tool_button_create_menu_proxy (GtkToolItem *item)
127 GtkToolButton *tool_button = GTK_TOOL_BUTTON (item);
128 GtkToggleToolButton *toggle_tool_button = GTK_TOGGLE_TOOL_BUTTON (item);
129 GtkWidget *menu_item = NULL;
130 GtkStockItem stock_item;
131 gboolean use_mnemonic = TRUE;
132 const char *label = "";
134 GtkWidget *label_widget = gtk_tool_button_get_label_widget (tool_button);
135 const gchar *label_text = gtk_tool_button_get_label (tool_button);
136 gboolean use_underline = gtk_tool_button_get_use_underline (tool_button);
137 const gchar *stock_id = gtk_tool_button_get_stock_id (tool_button);
139 if (label_widget && GTK_IS_LABEL (label_widget))
141 label = gtk_label_get_label (GTK_LABEL (label_widget));
146 use_mnemonic = use_underline;
148 else if (stock_id && gtk_stock_lookup (stock_id, &stock_item))
149 label = stock_item.label;
152 menu_item = gtk_check_menu_item_new_with_mnemonic (label);
154 menu_item = gtk_check_menu_item_new_with_label (label);
156 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
157 toggle_tool_button->priv->active);
159 g_signal_connect_closure_by_id (menu_item,
160 g_signal_lookup ("activate", G_OBJECT_TYPE (menu_item)), 0,
161 g_cclosure_new_object (G_CALLBACK (menu_item_activated),
162 G_OBJECT (toggle_tool_button)),
165 gtk_tool_item_set_proxy_menu_item (item, MENU_ID, menu_item);
170 /* There are two activatable widgets, a toggle button and a menu item.
172 * If a widget is activated and the state of the tool button is the same as
173 * the new state of the activated widget, then the other widget was the one
174 * that was activated by the user and updated the tool button's state.
176 * If the state of the tool button is not the same as the new state of the
177 * activated widget, then the activation was activated by the user, and the
178 * widget needs to make sure the tool button is updated before the other
179 * widget is activated. This will make sure the other widget a tool button
180 * in a state that matches its own new state.
183 menu_item_activated (GtkWidget *menu_item,
184 GtkToggleToolButton *toggle_tool_button)
186 GtkToolButton *tool_button = GTK_TOOL_BUTTON (toggle_tool_button);
187 gboolean menu_active = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (menu_item));
189 if (toggle_tool_button->priv->active != menu_active)
191 toggle_tool_button->priv->active = menu_active;
193 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (_gtk_tool_button_get_button (tool_button)),
194 toggle_tool_button->priv->active);
196 g_signal_emit (G_OBJECT (toggle_tool_button), toggle_signals[TOGGLED], 0);
201 button_toggled (GtkWidget *widget,
202 GtkToggleToolButton *toggle_tool_button)
204 gboolean toggle_active = GTK_TOGGLE_BUTTON (widget)->active;
206 if (toggle_tool_button->priv->active != toggle_active)
208 GtkWidget *menu_item;
210 toggle_tool_button->priv->active = toggle_active;
213 gtk_tool_item_get_proxy_menu_item (GTK_TOOL_ITEM (toggle_tool_button), MENU_ID)))
215 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
216 toggle_tool_button->priv->active);
219 g_signal_emit (G_OBJECT (toggle_tool_button), toggle_signals[TOGGLED], 0);
224 * gtk_toggle_tool_button_new:
226 * Returns a new #GtkToggleToolButton
228 * Return value: a newly created #GtkToggleToolButton
233 gtk_toggle_tool_button_new (void)
235 GtkToolButton *button;
237 button = g_object_new (GTK_TYPE_TOGGLE_TOOL_BUTTON,
240 return GTK_TOOL_ITEM (button);
244 * gtk_toggle_tool_button_new_from_stock:
245 * @stock_id: the name of the stock item
247 * Creates a new #GtkToggleToolButton containing the image and text from a
248 * stock item. Some stock ids have preprocessor macros like #GTK_STOCK_OK
249 * and #GTK_STOCK_APPLY.
251 * It is an error if @stock_id is not a name of a stock item.
253 * Return value: A new #GtkToggleToolButton
258 gtk_toggle_tool_button_new_from_stock (const gchar *stock_id)
260 GtkToolButton *button;
262 g_return_val_if_fail (stock_id != NULL, NULL);
264 button = g_object_new (GTK_TYPE_TOGGLE_TOOL_BUTTON,
265 "stock_id", stock_id,
268 return GTK_TOOL_ITEM (button);
272 * gtk_toggle_tool_button_set_active:
273 * @button: a #GtkToggleToolButton
274 * @is_active: whether @button should be active
276 * Sets the status of the toggle tool button. Set to %TRUE if you
277 * want the GtkToggleButton to be 'pressed in', and %FALSE to raise it.
278 * This action causes the toggled signal to be emitted.
283 gtk_toggle_tool_button_set_active (GtkToggleToolButton *button,
286 g_return_if_fail (GTK_IS_TOGGLE_TOOL_BUTTON (button));
288 is_active = is_active != FALSE;
290 if (button->priv->active != is_active)
291 gtk_button_clicked (GTK_BUTTON (_gtk_tool_button_get_button (GTK_TOOL_BUTTON (button))));
295 * gtk_toggle_tool_button_get_active:
296 * @button: a #GtkToggleToolButton
298 * Queries a #GtkToggleToolButton and returns its current state.
299 * Returns %TRUE if the toggle button is pressed in and %FALSE if it is raised.
301 * Return value: %TRUE if the toggle tool button is pressed in, %FALSE if not
306 gtk_toggle_tool_button_get_active (GtkToggleToolButton *button)
308 g_return_val_if_fail (GTK_IS_TOGGLE_TOOL_BUTTON (button), FALSE);
310 return button->priv->active;