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 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 1997-2001. 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/.
27 #include "gtkcheckmenuitem.h"
28 #include "gtkaccellabel.h"
29 #include "gtksignal.h"
32 #define CHECK_TOGGLE_SIZE 12
45 static void gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass);
46 static void gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item);
47 static gint gtk_check_menu_item_expose (GtkWidget *widget,
48 GdkEventExpose *event);
49 static void gtk_check_menu_item_activate (GtkMenuItem *menu_item);
50 static void gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
52 static void gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
54 static void gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
56 static void gtk_check_menu_item_set_property (GObject *object,
60 static void gtk_check_menu_item_get_property (GObject *object,
66 static GtkMenuItemClass *parent_class = NULL;
67 static guint check_menu_item_signals[LAST_SIGNAL] = { 0 };
71 gtk_check_menu_item_get_type (void)
73 static GtkType check_menu_item_type = 0;
75 if (!check_menu_item_type)
77 static const GtkTypeInfo check_menu_item_info =
80 sizeof (GtkCheckMenuItem),
81 sizeof (GtkCheckMenuItemClass),
82 (GtkClassInitFunc) gtk_check_menu_item_class_init,
83 (GtkObjectInitFunc) gtk_check_menu_item_init,
84 /* reserved_1 */ NULL,
85 /* reserved_2 */ NULL,
86 (GtkClassInitFunc) NULL,
89 check_menu_item_type = gtk_type_unique (GTK_TYPE_MENU_ITEM, &check_menu_item_info);
92 return check_menu_item_type;
96 gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass)
98 GtkObjectClass *object_class;
99 GtkWidgetClass *widget_class;
100 GtkMenuItemClass *menu_item_class;
102 object_class = (GtkObjectClass*) klass;
103 widget_class = (GtkWidgetClass*) klass;
104 menu_item_class = (GtkMenuItemClass*) klass;
106 parent_class = gtk_type_class (GTK_TYPE_MENU_ITEM);
108 G_OBJECT_CLASS(object_class)->set_property = gtk_check_menu_item_set_property;
109 G_OBJECT_CLASS(object_class)->get_property = gtk_check_menu_item_get_property;
111 g_object_class_install_property (G_OBJECT_CLASS (object_class),
113 g_param_spec_boolean ("active",
115 _("Whether the menu item is checked."),
117 G_PARAM_READABLE | G_PARAM_WRITABLE));
119 g_object_class_install_property (G_OBJECT_CLASS (object_class),
121 g_param_spec_boolean ("inconsistent",
123 _("Whether to display an \"inconsistent\" state."),
125 G_PARAM_READABLE | G_PARAM_WRITABLE));
127 widget_class->expose_event = gtk_check_menu_item_expose;
129 menu_item_class->activate = gtk_check_menu_item_activate;
130 menu_item_class->hide_on_activate = FALSE;
131 menu_item_class->toggle_size_request = gtk_check_menu_item_toggle_size_request;
133 klass->toggled = NULL;
134 klass->draw_indicator = gtk_real_check_menu_item_draw_indicator;
136 check_menu_item_signals[TOGGLED] =
137 gtk_signal_new ("toggled",
139 GTK_CLASS_TYPE (object_class),
140 GTK_SIGNAL_OFFSET (GtkCheckMenuItemClass, toggled),
141 gtk_marshal_VOID__VOID,
146 gtk_check_menu_item_new (void)
148 return GTK_WIDGET (gtk_type_new (GTK_TYPE_CHECK_MENU_ITEM));
152 gtk_check_menu_item_new_with_label (const gchar *label)
154 GtkWidget *check_menu_item;
155 GtkWidget *accel_label;
157 check_menu_item = gtk_check_menu_item_new ();
158 accel_label = gtk_accel_label_new (label);
159 gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
161 gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
162 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
163 gtk_widget_show (accel_label);
165 return check_menu_item;
170 * gtk_check_menu_item_new_with_mnemonic:
171 * @label: The text of the button, with an underscore in front of the
173 * @returns: a new #GtkCheckMenuItem
175 * Creates a new #GtkCheckMenuItem containing a label. The label
176 * will be created using gtk_label_new_with_mnemonic(), so underscores
177 * in @label indicate the mnemonic for the menu item.
180 gtk_check_menu_item_new_with_mnemonic (const gchar *label)
182 GtkWidget *check_menu_item;
183 GtkWidget *accel_label;
185 check_menu_item = gtk_check_menu_item_new ();
186 accel_label = gtk_type_new (GTK_TYPE_ACCEL_LABEL);
187 gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
188 gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
190 gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
191 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
192 gtk_widget_show (accel_label);
194 return check_menu_item;
198 gtk_check_menu_item_set_active (GtkCheckMenuItem *check_menu_item,
201 g_return_if_fail (check_menu_item != NULL);
202 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
204 is_active = is_active != 0;
206 if (check_menu_item->active != is_active)
208 gtk_menu_item_activate (GTK_MENU_ITEM (check_menu_item));
209 g_object_notify (G_OBJECT(check_menu_item), "active");
214 * gtk_check_menu_item_get_active:
215 * @check_menu_item: a #GtkCheckMenuItem
217 * Returns whether the check menu item is active. See
218 * gtk_check_menu_item_set_active ().
220 * Return value: %TRUE if the menu item is checked.
223 gtk_check_menu_item_get_active (GtkCheckMenuItem *check_menu_item)
225 g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
227 return check_menu_item->active;
231 gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
234 g_return_if_fail (menu_item != NULL);
235 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
237 *requisition = CHECK_TOGGLE_SIZE;
241 gtk_check_menu_item_set_show_toggle (GtkCheckMenuItem *menu_item,
244 g_return_if_fail (menu_item != NULL);
245 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
248 menu_item->always_show_toggle = always != FALSE;
253 gtk_check_menu_item_toggled (GtkCheckMenuItem *check_menu_item)
255 gtk_signal_emit (GTK_OBJECT (check_menu_item), check_menu_item_signals[TOGGLED]);
259 * gtk_check_menu_item_set_inconsistent:
260 * @check_menu_item: a #GtkCheckMenuItem
261 * @setting: %TRUE to display an "inconsistent" third state check
263 * If the user has selected a range of elements (such as some text or
264 * spreadsheet cells) that are affected by a boolean setting, and the
265 * current values in that range are inconsistent, you may want to
266 * display the check in an "in between" state. This function turns on
267 * "in between" display. Normally you would turn off the inconsistent
268 * state again if the user explicitly selects a setting. This has to be
269 * done manually, gtk_check_menu_item_set_inconsistent() only affects
270 * visual appearance, it doesn't affect the semantics of the widget.
274 gtk_check_menu_item_set_inconsistent (GtkCheckMenuItem *check_menu_item,
277 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
279 setting = setting != FALSE;
281 if (setting != check_menu_item->inconsistent)
283 check_menu_item->inconsistent = setting;
284 gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
285 g_object_notify (G_OBJECT (check_menu_item), "inconsistent");
290 * gtk_check_menu_item_get_inconsistent:
291 * @check_menu_item: a #GtkCheckMenuItem
293 * Retrieves the value set by gtk_check_menu_item_set_inconsistent().
295 * Return value: %TRUE if inconsistent
298 gtk_check_menu_item_get_inconsistent (GtkCheckMenuItem *check_menu_item)
300 g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
302 return check_menu_item->inconsistent;
306 gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item)
308 check_menu_item->active = FALSE;
309 check_menu_item->always_show_toggle = TRUE;
313 gtk_check_menu_item_expose (GtkWidget *widget,
314 GdkEventExpose *event)
316 g_return_val_if_fail (widget != NULL, FALSE);
317 g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (widget), FALSE);
318 g_return_val_if_fail (event != NULL, FALSE);
320 if (GTK_WIDGET_CLASS (parent_class)->expose_event)
321 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
323 gtk_check_menu_item_draw_indicator (GTK_CHECK_MENU_ITEM (widget), &event->area);
329 gtk_check_menu_item_activate (GtkMenuItem *menu_item)
331 GtkCheckMenuItem *check_menu_item;
333 g_return_if_fail (menu_item != NULL);
334 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
336 check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
337 check_menu_item->active = !check_menu_item->active;
339 gtk_check_menu_item_toggled (check_menu_item);
340 gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
344 gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
347 g_return_if_fail (check_menu_item != NULL);
348 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
349 g_return_if_fail (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item) != NULL);
351 if (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator)
352 (* GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator) (check_menu_item, area);
356 gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
360 GtkStateType state_type;
361 GtkShadowType shadow_type;
365 g_return_if_fail (check_menu_item != NULL);
366 g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
368 if (GTK_WIDGET_DRAWABLE (check_menu_item))
370 widget = GTK_WIDGET (check_menu_item);
374 x = (GTK_CONTAINER (check_menu_item)->border_width +
375 widget->style->xthickness + 2);
376 y = (widget->allocation.height - height) / 2;
378 if (check_menu_item->active ||
379 check_menu_item->always_show_toggle ||
380 (GTK_WIDGET_STATE (check_menu_item) == GTK_STATE_PRELIGHT))
382 state_type = GTK_WIDGET_STATE (widget);
384 if (check_menu_item->always_show_toggle)
386 shadow_type = GTK_SHADOW_OUT;
387 if (check_menu_item->active)
388 shadow_type = GTK_SHADOW_IN;
392 shadow_type = GTK_SHADOW_IN;
393 if (check_menu_item->active &&
394 (state_type == GTK_STATE_PRELIGHT))
395 shadow_type = GTK_SHADOW_OUT;
398 if (check_menu_item->inconsistent)
400 shadow_type = GTK_SHADOW_ETCHED_IN;
401 if (state_type == GTK_STATE_ACTIVE)
402 state_type = GTK_STATE_NORMAL;
405 gtk_paint_check (widget->style, widget->window,
406 state_type, shadow_type,
407 area, widget, "check",
408 x, y, width, height);
415 gtk_check_menu_item_get_property (GObject *object,
420 GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
425 g_value_set_boolean (value, checkitem->active);
427 case PROP_INCONSISTENT:
428 g_value_set_boolean (value, checkitem->inconsistent);
431 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
438 gtk_check_menu_item_set_property (GObject *object,
443 GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
448 gtk_check_menu_item_set_active (checkitem, g_value_get_boolean (value));
450 case PROP_INCONSISTENT:
451 gtk_check_menu_item_set_inconsistent (checkitem, g_value_get_boolean (value));
454 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);