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"
28 #include "gtkradiotoolbutton.h"
30 #define MENU_ID "gtk-toggle-tool-button-menu-id"
37 struct _GtkToggleToolButtonPrivate
42 static void gtk_toggle_tool_button_init (GtkToggleToolButton *button);
43 static void gtk_toggle_tool_button_class_init (GtkToggleToolButtonClass *klass);
45 static gboolean gtk_toggle_tool_button_create_menu_proxy (GtkToolItem *button);
47 static void button_toggled (GtkWidget *widget,
48 GtkToggleToolButton *button);
49 static void menu_item_activated (GtkWidget *widget,
50 GtkToggleToolButton *button);
52 static GObjectClass *parent_class = NULL;
53 static guint toggle_signals[LAST_SIGNAL] = { 0 };
56 gtk_toggle_tool_button_get_type (void)
58 static GType type = 0;
62 static const GTypeInfo type_info =
64 sizeof (GtkToggleToolButtonClass),
66 (GBaseFinalizeFunc) 0,
67 (GClassInitFunc) gtk_toggle_tool_button_class_init,
68 (GClassFinalizeFunc) 0,
70 sizeof (GtkToggleToolButton),
72 (GInstanceInitFunc) gtk_toggle_tool_button_init
75 type = g_type_register_static (GTK_TYPE_TOOL_BUTTON,
76 "GtkToggleToolButton", &type_info, 0);
83 gtk_toggle_tool_button_class_init (GtkToggleToolButtonClass *klass)
85 GObjectClass *object_class;
86 GtkToolItemClass *toolitem_class;
87 GtkToolButtonClass *toolbutton_class;
89 parent_class = g_type_class_peek_parent (klass);
91 object_class = (GObjectClass *)klass;
92 toolitem_class = (GtkToolItemClass *)klass;
93 toolbutton_class = (GtkToolButtonClass *)klass;
95 toolitem_class->create_menu_proxy = gtk_toggle_tool_button_create_menu_proxy;
96 toolbutton_class->button_type = GTK_TYPE_TOGGLE_BUTTON;
99 * GtkToggleToolButton::toggled:
100 * @toggle_tool_button: the object that emitted the signal
102 * Emitted whenever the toggle tool button changes state.
104 toggle_signals[TOGGLED] =
105 g_signal_new ("toggled",
106 G_OBJECT_CLASS_TYPE (klass),
108 G_STRUCT_OFFSET (GtkToggleToolButtonClass, toggled),
110 g_cclosure_marshal_VOID__VOID,
113 g_type_class_add_private (object_class, sizeof (GtkToggleToolButtonPrivate));
117 gtk_toggle_tool_button_init (GtkToggleToolButton *button)
119 GtkToolButton *tool_button = GTK_TOOL_BUTTON (button);
120 GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (_gtk_tool_button_get_button (tool_button));
122 button->priv = GTK_TOGGLE_TOOL_BUTTON_GET_PRIVATE (button);
124 /* If the real button is a radio button, it may have been
125 * active at the time it was created.
127 button->priv->active = gtk_toggle_button_get_active (toggle_button);
129 g_signal_connect_object (toggle_button,
130 "toggled", G_CALLBACK (button_toggled), button, 0);
134 gtk_toggle_tool_button_create_menu_proxy (GtkToolItem *item)
136 GtkToolButton *tool_button = GTK_TOOL_BUTTON (item);
137 GtkToggleToolButton *toggle_tool_button = GTK_TOGGLE_TOOL_BUTTON (item);
138 GtkWidget *menu_item = NULL;
139 GtkStockItem stock_item;
140 gboolean use_mnemonic = TRUE;
143 GtkWidget *label_widget = gtk_tool_button_get_label_widget (tool_button);
144 const gchar *label_text = gtk_tool_button_get_label (tool_button);
145 const gchar *stock_id = gtk_tool_button_get_stock_id (tool_button);
147 if (label_widget && GTK_IS_LABEL (label_widget))
149 label = gtk_label_get_label (GTK_LABEL (label_widget));
150 use_mnemonic = gtk_label_get_use_underline (GTK_LABEL (label_widget));
155 use_mnemonic = gtk_tool_button_get_use_underline (tool_button);
157 else if (stock_id && gtk_stock_lookup (stock_id, &stock_item))
159 label = stock_item.label;
167 menu_item = gtk_check_menu_item_new_with_mnemonic (label);
169 menu_item = gtk_check_menu_item_new_with_label (label);
171 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
172 toggle_tool_button->priv->active);
174 if (GTK_IS_RADIO_TOOL_BUTTON (toggle_tool_button))
176 gtk_check_menu_item_set_draw_as_radio (GTK_CHECK_MENU_ITEM (menu_item),
180 g_signal_connect_closure_by_id (menu_item,
181 g_signal_lookup ("activate", G_OBJECT_TYPE (menu_item)), 0,
182 g_cclosure_new_object (G_CALLBACK (menu_item_activated),
183 G_OBJECT (toggle_tool_button)),
186 gtk_tool_item_set_proxy_menu_item (item, MENU_ID, menu_item);
191 /* There are two activatable widgets, a toggle button and a menu item.
193 * If a widget is activated and the state of the tool button is the same as
194 * the new state of the activated widget, then the other widget was the one
195 * that was activated by the user and updated the tool button's state.
197 * If the state of the tool button is not the same as the new state of the
198 * activated widget, then the activation was activated by the user, and the
199 * widget needs to make sure the tool button is updated before the other
200 * widget is activated. This will make sure the other widget a tool button
201 * in a state that matches its own new state.
204 menu_item_activated (GtkWidget *menu_item,
205 GtkToggleToolButton *toggle_tool_button)
207 GtkToolButton *tool_button = GTK_TOOL_BUTTON (toggle_tool_button);
208 gboolean menu_active = gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (menu_item));
210 if (toggle_tool_button->priv->active != menu_active)
212 toggle_tool_button->priv->active = menu_active;
214 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (_gtk_tool_button_get_button (tool_button)),
215 toggle_tool_button->priv->active);
217 g_signal_emit (G_OBJECT (toggle_tool_button), toggle_signals[TOGGLED], 0);
222 button_toggled (GtkWidget *widget,
223 GtkToggleToolButton *toggle_tool_button)
225 gboolean toggle_active = GTK_TOGGLE_BUTTON (widget)->active;
227 if (toggle_tool_button->priv->active != toggle_active)
229 GtkWidget *menu_item;
231 toggle_tool_button->priv->active = toggle_active;
234 gtk_tool_item_get_proxy_menu_item (GTK_TOOL_ITEM (toggle_tool_button), MENU_ID)))
236 gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item),
237 toggle_tool_button->priv->active);
240 g_signal_emit (G_OBJECT (toggle_tool_button), toggle_signals[TOGGLED], 0);
245 * gtk_toggle_tool_button_new:
247 * Returns a new #GtkToggleToolButton
249 * Return value: a newly created #GtkToggleToolButton
254 gtk_toggle_tool_button_new (void)
256 GtkToolButton *button;
258 button = g_object_new (GTK_TYPE_TOGGLE_TOOL_BUTTON,
261 return GTK_TOOL_ITEM (button);
265 * gtk_toggle_tool_button_new_from_stock:
266 * @stock_id: the name of the stock item
268 * Creates a new #GtkToggleToolButton containing the image and text from a
269 * stock item. Some stock ids have preprocessor macros like #GTK_STOCK_OK
270 * and #GTK_STOCK_APPLY.
272 * It is an error if @stock_id is not a name of a stock item.
274 * Return value: A new #GtkToggleToolButton
279 gtk_toggle_tool_button_new_from_stock (const gchar *stock_id)
281 GtkToolButton *button;
283 g_return_val_if_fail (stock_id != NULL, NULL);
285 button = g_object_new (GTK_TYPE_TOGGLE_TOOL_BUTTON,
286 "stock_id", stock_id,
289 return GTK_TOOL_ITEM (button);
293 * gtk_toggle_tool_button_set_active:
294 * @button: a #GtkToggleToolButton
295 * @is_active: whether @button should be active
297 * Sets the status of the toggle tool button. Set to %TRUE if you
298 * want the GtkToggleButton to be 'pressed in', and %FALSE to raise it.
299 * This action causes the toggled signal to be emitted.
304 gtk_toggle_tool_button_set_active (GtkToggleToolButton *button,
307 g_return_if_fail (GTK_IS_TOGGLE_TOOL_BUTTON (button));
309 is_active = is_active != FALSE;
311 if (button->priv->active != is_active)
312 gtk_button_clicked (GTK_BUTTON (_gtk_tool_button_get_button (GTK_TOOL_BUTTON (button))));
316 * gtk_toggle_tool_button_get_active:
317 * @button: a #GtkToggleToolButton
319 * Queries a #GtkToggleToolButton and returns its current state.
320 * Returns %TRUE if the toggle button is pressed in and %FALSE if it is raised.
322 * Return value: %TRUE if the toggle tool button is pressed in, %FALSE if not
327 gtk_toggle_tool_button_get_active (GtkToggleToolButton *button)
329 g_return_val_if_fail (GTK_IS_TOGGLE_TOOL_BUTTON (button), FALSE);
331 return button->priv->active;