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, see <http://www.gnu.org/licenses/>.
19 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
20 * file for a list of people on the GTK+ Team. See the ChangeLog
21 * files for a list of changes. These files are distributed with
22 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #include "gtkaccellabel.h"
31 #include "gtkmarshalers.h"
32 #include "gtkmenuprivate.h"
33 #include "gtkmenushellprivate.h"
34 #include "gtkmenuitemprivate.h"
35 #include "gtkmenubar.h"
36 #include "gtkmenuprivate.h"
37 #include "gtkseparatormenuitem.h"
38 #include "gtkprivate.h"
39 #include "gtkbuildable.h"
40 #include "gtkactivatable.h"
41 #include "gtkwidgetprivate.h"
43 #include "gtksettings.h"
44 #include "gtktypebuiltins.h"
45 #include "a11y/gtkmenuitemaccessible.h"
46 #include "deprecated/gtktearoffmenuitem.h"
50 * @Short_description: The widget used for item in menus
52 * @See_also: #GtkBin, #GtkMenuShell
54 * The #GtkMenuItem widget and the derived widgets are the only valid
55 * childs for menus. Their function is to correctly handle highlighting,
56 * alignment, events and submenus.
58 * As it derives from #GtkBin it can hold any valid child widget, altough
59 * only a few are really useful.
61 * <refsect2 id="GtkMenuItem-BUILDER-UI">
62 * <title>GtkMenuItem as GtkBuildable</title>
63 * The GtkMenuItem implementation of the GtkBuildable interface
64 * supports adding a submenu by specifying "submenu" as the "type"
65 * attribute of a <child> element.
67 * <title>A UI definition fragment with submenus</title>
68 * <programlisting><![CDATA[
69 * <object class="GtkMenuItem">
70 * <child type="submenu">
71 * <object class="GtkMenu"/>
74 * ]]></programlisting>
98 /* activatable properties */
99 PROP_ACTIVATABLE_RELATED_ACTION,
100 PROP_ACTIVATABLE_USE_ACTION_APPEARANCE,
107 static void gtk_menu_item_dispose (GObject *object);
108 static void gtk_menu_item_set_property (GObject *object,
112 static void gtk_menu_item_get_property (GObject *object,
116 static void gtk_menu_item_destroy (GtkWidget *widget);
117 static void gtk_menu_item_size_allocate (GtkWidget *widget,
118 GtkAllocation *allocation);
119 static void gtk_menu_item_realize (GtkWidget *widget);
120 static void gtk_menu_item_unrealize (GtkWidget *widget);
121 static void gtk_menu_item_map (GtkWidget *widget);
122 static void gtk_menu_item_unmap (GtkWidget *widget);
123 static gboolean gtk_menu_item_enter (GtkWidget *widget,
124 GdkEventCrossing *event);
125 static gboolean gtk_menu_item_leave (GtkWidget *widget,
126 GdkEventCrossing *event);
127 static gboolean gtk_menu_item_draw (GtkWidget *widget,
129 static void gtk_menu_item_parent_set (GtkWidget *widget,
130 GtkWidget *previous_parent);
133 static void gtk_real_menu_item_select (GtkMenuItem *item);
134 static void gtk_real_menu_item_deselect (GtkMenuItem *item);
135 static void gtk_real_menu_item_activate (GtkMenuItem *item);
136 static void gtk_real_menu_item_activate_item (GtkMenuItem *item);
137 static void gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
139 static void gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
141 static gboolean gtk_menu_item_mnemonic_activate (GtkWidget *widget,
142 gboolean group_cycling);
144 static void gtk_menu_item_ensure_label (GtkMenuItem *menu_item);
145 static gint gtk_menu_item_popup_timeout (gpointer data);
146 static void gtk_menu_item_position_menu (GtkMenu *menu,
151 static void gtk_menu_item_show_all (GtkWidget *widget);
152 static void gtk_menu_item_forall (GtkContainer *container,
153 gboolean include_internals,
154 GtkCallback callback,
155 gpointer callback_data);
156 static gboolean gtk_menu_item_can_activate_accel (GtkWidget *widget,
159 static void gtk_real_menu_item_set_label (GtkMenuItem *menu_item,
161 static const gchar * gtk_real_menu_item_get_label (GtkMenuItem *menu_item);
163 static void gtk_menu_item_get_preferred_width (GtkWidget *widget,
166 static void gtk_menu_item_get_preferred_height (GtkWidget *widget,
169 static void gtk_menu_item_get_preferred_height_for_width (GtkWidget *widget,
174 static void gtk_menu_item_buildable_interface_init (GtkBuildableIface *iface);
175 static void gtk_menu_item_buildable_add_child (GtkBuildable *buildable,
179 static void gtk_menu_item_buildable_custom_finished(GtkBuildable *buildable,
182 const gchar *tagname,
185 static void gtk_menu_item_actionable_interface_init (GtkActionableInterface *iface);
186 static void gtk_menu_item_activatable_interface_init (GtkActivatableIface *iface);
187 static void gtk_menu_item_update (GtkActivatable *activatable,
189 const gchar *property_name);
190 static void gtk_menu_item_sync_action_properties (GtkActivatable *activatable,
192 static void gtk_menu_item_set_related_action (GtkMenuItem *menu_item,
194 static void gtk_menu_item_set_use_action_appearance (GtkMenuItem *menu_item,
195 gboolean use_appearance);
197 static guint menu_item_signals[LAST_SIGNAL] = { 0 };
199 static GtkBuildableIface *parent_buildable_iface;
201 G_DEFINE_TYPE_WITH_CODE (GtkMenuItem, gtk_menu_item, GTK_TYPE_BIN,
202 G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
203 gtk_menu_item_buildable_interface_init)
204 G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
205 gtk_menu_item_activatable_interface_init)
206 G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIONABLE,
207 gtk_menu_item_actionable_interface_init))
210 gtk_menu_item_set_action_name (GtkActionable *actionable,
211 const gchar *action_name)
213 GtkMenuItem *menu_item = GTK_MENU_ITEM (actionable);
215 if (!menu_item->priv->action_helper)
216 menu_item->priv->action_helper = gtk_action_helper_new (actionable);
218 gtk_action_helper_set_action_name (menu_item->priv->action_helper, action_name);
222 gtk_menu_item_set_action_target_value (GtkActionable *actionable,
223 GVariant *action_target)
225 GtkMenuItem *menu_item = GTK_MENU_ITEM (actionable);
227 if (!menu_item->priv->action_helper)
228 menu_item->priv->action_helper = gtk_action_helper_new (actionable);
230 gtk_action_helper_set_action_target_value (menu_item->priv->action_helper, action_target);
234 gtk_menu_item_get_action_name (GtkActionable *actionable)
236 GtkMenuItem *menu_item = GTK_MENU_ITEM (actionable);
238 return gtk_action_helper_get_action_name (menu_item->priv->action_helper);
242 gtk_menu_item_get_action_target_value (GtkActionable *actionable)
244 GtkMenuItem *menu_item = GTK_MENU_ITEM (actionable);
246 return gtk_action_helper_get_action_target_value (menu_item->priv->action_helper);
250 gtk_menu_item_actionable_interface_init (GtkActionableInterface *iface)
252 iface->set_action_name = gtk_menu_item_set_action_name;
253 iface->get_action_name = gtk_menu_item_get_action_name;
254 iface->set_action_target_value = gtk_menu_item_set_action_target_value;
255 iface->get_action_target_value = gtk_menu_item_get_action_target_value;
259 gtk_menu_item_class_init (GtkMenuItemClass *klass)
261 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
262 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
263 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
265 gobject_class->dispose = gtk_menu_item_dispose;
266 gobject_class->set_property = gtk_menu_item_set_property;
267 gobject_class->get_property = gtk_menu_item_get_property;
269 widget_class->destroy = gtk_menu_item_destroy;
270 widget_class->size_allocate = gtk_menu_item_size_allocate;
271 widget_class->draw = gtk_menu_item_draw;
272 widget_class->realize = gtk_menu_item_realize;
273 widget_class->unrealize = gtk_menu_item_unrealize;
274 widget_class->map = gtk_menu_item_map;
275 widget_class->unmap = gtk_menu_item_unmap;
276 widget_class->enter_notify_event = gtk_menu_item_enter;
277 widget_class->leave_notify_event = gtk_menu_item_leave;
278 widget_class->show_all = gtk_menu_item_show_all;
279 widget_class->mnemonic_activate = gtk_menu_item_mnemonic_activate;
280 widget_class->parent_set = gtk_menu_item_parent_set;
281 widget_class->can_activate_accel = gtk_menu_item_can_activate_accel;
282 widget_class->get_preferred_width = gtk_menu_item_get_preferred_width;
283 widget_class->get_preferred_height = gtk_menu_item_get_preferred_height;
284 widget_class->get_preferred_height_for_width = gtk_menu_item_get_preferred_height_for_width;
286 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_MENU_ITEM_ACCESSIBLE);
288 container_class->forall = gtk_menu_item_forall;
290 klass->activate = gtk_real_menu_item_activate;
291 klass->activate_item = gtk_real_menu_item_activate_item;
292 klass->toggle_size_request = gtk_real_menu_item_toggle_size_request;
293 klass->toggle_size_allocate = gtk_real_menu_item_toggle_size_allocate;
294 klass->set_label = gtk_real_menu_item_set_label;
295 klass->get_label = gtk_real_menu_item_get_label;
296 klass->select = gtk_real_menu_item_select;
297 klass->deselect = gtk_real_menu_item_deselect;
299 klass->hide_on_activate = TRUE;
302 * GtkMenuItem::activate:
303 * @menuitem: the object which received the signal.
305 * Emitted when the item is activated.
307 menu_item_signals[ACTIVATE] =
308 g_signal_new (I_("activate"),
309 G_OBJECT_CLASS_TYPE (gobject_class),
310 G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
311 G_STRUCT_OFFSET (GtkMenuItemClass, activate),
313 _gtk_marshal_VOID__VOID,
315 widget_class->activate_signal = menu_item_signals[ACTIVATE];
318 * GtkMenuItem::activate-item:
319 * @menuitem: the object which received the signal.
321 * Emitted when the item is activated, but also if the menu item has a
322 * submenu. For normal applications, the relevant signal is
323 * #GtkMenuItem::activate.
325 menu_item_signals[ACTIVATE_ITEM] =
326 g_signal_new (I_("activate-item"),
327 G_OBJECT_CLASS_TYPE (gobject_class),
329 G_STRUCT_OFFSET (GtkMenuItemClass, activate_item),
331 _gtk_marshal_VOID__VOID,
334 menu_item_signals[TOGGLE_SIZE_REQUEST] =
335 g_signal_new (I_("toggle-size-request"),
336 G_OBJECT_CLASS_TYPE (gobject_class),
338 G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_request),
340 _gtk_marshal_VOID__POINTER,
344 menu_item_signals[TOGGLE_SIZE_ALLOCATE] =
345 g_signal_new (I_("toggle-size-allocate"),
346 G_OBJECT_CLASS_TYPE (gobject_class),
348 G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_allocate),
350 _gtk_marshal_VOID__INT,
354 menu_item_signals[SELECT] =
355 g_signal_new (I_("select"),
356 G_OBJECT_CLASS_TYPE (gobject_class),
358 G_STRUCT_OFFSET (GtkMenuItemClass, select),
360 _gtk_marshal_VOID__VOID,
363 menu_item_signals[DESELECT] =
364 g_signal_new (I_("deselect"),
365 G_OBJECT_CLASS_TYPE (gobject_class),
367 G_STRUCT_OFFSET (GtkMenuItemClass, deselect),
369 _gtk_marshal_VOID__VOID,
373 * GtkMenuItem:right-justified:
375 * Sets whether the menu item appears justified
376 * at the right side of a menu bar.
380 g_object_class_install_property (gobject_class,
381 PROP_RIGHT_JUSTIFIED,
382 g_param_spec_boolean ("right-justified",
383 P_("Right Justified"),
384 P_("Sets whether the menu item appears justified at the right side of a menu bar"),
386 GTK_PARAM_READWRITE | G_PARAM_DEPRECATED));
389 * GtkMenuItem:submenu:
391 * The submenu attached to the menu item, or %NULL if it has none.
395 g_object_class_install_property (gobject_class,
397 g_param_spec_object ("submenu",
399 P_("The submenu attached to the menu item, or NULL if it has none"),
401 GTK_PARAM_READWRITE));
404 * GtkMenuItem:accel-path:
406 * Sets the accelerator path of the menu item, through which runtime
407 * changes of the menu item's accelerator caused by the user can be
408 * identified and saved to persistant storage.
412 g_object_class_install_property (gobject_class,
414 g_param_spec_string ("accel-path",
416 P_("Sets the accelerator path of the menu item"),
418 GTK_PARAM_READWRITE));
423 * The text for the child label.
427 g_object_class_install_property (gobject_class,
429 g_param_spec_string ("label",
431 P_("The text for the child label"),
433 GTK_PARAM_READWRITE));
436 * GtkMenuItem:use-underline:
438 * %TRUE if underlines in the text indicate mnemonics.
442 g_object_class_install_property (gobject_class,
444 g_param_spec_boolean ("use-underline",
446 P_("If set, an underline in the text indicates "
447 "the next character should be used for the "
448 "mnemonic accelerator key"),
450 GTK_PARAM_READWRITE));
452 g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_RELATED_ACTION, "related-action");
453 g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_USE_ACTION_APPEARANCE, "use-action-appearance");
455 g_object_class_override_property (gobject_class, PROP_ACTION_NAME, "action-name");
456 g_object_class_override_property (gobject_class, PROP_ACTION_TARGET, "action-target");
458 gtk_widget_class_install_style_property_parser (widget_class,
459 g_param_spec_enum ("selected-shadow-type",
460 "Selected Shadow Type",
461 "Shadow type when item is selected",
462 GTK_TYPE_SHADOW_TYPE,
465 gtk_rc_property_parse_enum);
468 * GtkMenuItem:horizontal-padding:
470 * Padding to left and right of the menu item.
472 * Deprecated: 3.8: use the standard padding CSS property (through objects
473 * like #GtkStyleContext and #GtkCssProvider); the value of this style
474 * property is ignored.
476 gtk_widget_class_install_style_property (widget_class,
477 g_param_spec_int ("horizontal-padding",
478 "Horizontal Padding",
479 "Padding to left and right of the menu item",
484 G_PARAM_DEPRECATED));
486 gtk_widget_class_install_style_property (widget_class,
487 g_param_spec_int ("toggle-spacing",
489 "Space between icon and label",
493 GTK_PARAM_READABLE));
495 gtk_widget_class_install_style_property (widget_class,
496 g_param_spec_int ("arrow-spacing",
498 "Space between label and arrow",
502 GTK_PARAM_READABLE));
504 gtk_widget_class_install_style_property (widget_class,
505 g_param_spec_float ("arrow-scaling",
507 P_("Amount of space used up by arrow, relative to the menu item's font size"),
509 GTK_PARAM_READABLE));
512 * GtkMenuItem:width-chars:
514 * The minimum desired width of the menu item in characters.
518 gtk_widget_class_install_style_property (widget_class,
519 g_param_spec_int ("width-chars",
520 P_("Width in Characters"),
521 P_("The minimum desired width of the menu item in characters"),
523 GTK_PARAM_READABLE));
525 g_type_class_add_private (klass, sizeof (GtkMenuItemPrivate));
529 gtk_menu_item_init (GtkMenuItem *menu_item)
531 GtkStyleContext *context;
532 GtkMenuItemPrivate *priv;
534 priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_item,
537 menu_item->priv = priv;
539 gtk_widget_set_has_window (GTK_WIDGET (menu_item), FALSE);
542 priv->use_action_appearance = TRUE;
544 menu_item->priv->submenu = NULL;
545 menu_item->priv->toggle_size = 0;
546 menu_item->priv->accelerator_width = 0;
547 if (gtk_widget_get_direction (GTK_WIDGET (menu_item)) == GTK_TEXT_DIR_RTL)
548 priv->submenu_direction = GTK_DIRECTION_LEFT;
550 priv->submenu_direction = GTK_DIRECTION_RIGHT;
551 priv->submenu_placement = GTK_TOP_BOTTOM;
552 priv->right_justify = FALSE;
553 priv->use_action_appearance = TRUE;
557 context = gtk_widget_get_style_context (GTK_WIDGET (menu_item));
558 gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUITEM);
564 * Creates a new #GtkMenuItem.
566 * Returns: the newly created #GtkMenuItem
569 gtk_menu_item_new (void)
571 return g_object_new (GTK_TYPE_MENU_ITEM, NULL);
575 * gtk_menu_item_new_with_label:
576 * @label: the text for the label
578 * Creates a new #GtkMenuItem whose child is a #GtkLabel.
580 * Returns: the newly created #GtkMenuItem
583 gtk_menu_item_new_with_label (const gchar *label)
585 return g_object_new (GTK_TYPE_MENU_ITEM,
592 * gtk_menu_item_new_with_mnemonic:
593 * @label: The text of the button, with an underscore in front of the
596 * Creates a new #GtkMenuItem containing a label.
598 * The label will be created using gtk_label_new_with_mnemonic(),
599 * so underscores in @label indicate the mnemonic for the menu item.
601 * Returns: a new #GtkMenuItem
604 gtk_menu_item_new_with_mnemonic (const gchar *label)
606 return g_object_new (GTK_TYPE_MENU_ITEM,
607 "use-underline", TRUE,
613 gtk_menu_item_dispose (GObject *object)
615 GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
616 GtkMenuItemPrivate *priv = menu_item->priv;
618 g_clear_object (&priv->action_helper);
622 gtk_action_disconnect_accelerator (priv->action);
623 gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (menu_item), NULL);
626 G_OBJECT_CLASS (gtk_menu_item_parent_class)->dispose (object);
630 gtk_menu_item_do_set_right_justified (GtkMenuItem *menu_item,
631 gboolean right_justified)
633 GtkMenuItemPrivate *priv = menu_item->priv;
635 right_justified = right_justified != FALSE;
637 if (priv->right_justify != right_justified)
639 priv->right_justify = right_justified;
640 gtk_widget_queue_resize (GTK_WIDGET (menu_item));
645 gtk_menu_item_set_property (GObject *object,
650 GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
654 case PROP_RIGHT_JUSTIFIED:
655 gtk_menu_item_do_set_right_justified (menu_item, g_value_get_boolean (value));
658 gtk_menu_item_set_submenu (menu_item, g_value_get_object (value));
660 case PROP_ACCEL_PATH:
661 gtk_menu_item_set_accel_path (menu_item, g_value_get_string (value));
664 gtk_menu_item_set_label (menu_item, g_value_get_string (value));
666 case PROP_USE_UNDERLINE:
667 gtk_menu_item_set_use_underline (menu_item, g_value_get_boolean (value));
669 case PROP_ACTIVATABLE_RELATED_ACTION:
670 gtk_menu_item_set_related_action (menu_item, g_value_get_object (value));
672 case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
673 gtk_menu_item_set_use_action_appearance (menu_item, g_value_get_boolean (value));
675 case PROP_ACTION_NAME:
676 gtk_menu_item_set_action_name (GTK_ACTIONABLE (menu_item), g_value_get_string (value));
678 case PROP_ACTION_TARGET:
679 gtk_menu_item_set_action_target_value (GTK_ACTIONABLE (menu_item), g_value_get_variant (value));
682 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
688 gtk_menu_item_get_property (GObject *object,
693 GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
694 GtkMenuItemPrivate *priv = menu_item->priv;
698 case PROP_RIGHT_JUSTIFIED:
699 g_value_set_boolean (value, menu_item->priv->right_justify);
702 g_value_set_object (value, gtk_menu_item_get_submenu (menu_item));
704 case PROP_ACCEL_PATH:
705 g_value_set_string (value, gtk_menu_item_get_accel_path (menu_item));
708 g_value_set_string (value, gtk_menu_item_get_label (menu_item));
710 case PROP_USE_UNDERLINE:
711 g_value_set_boolean (value, gtk_menu_item_get_use_underline (menu_item));
713 case PROP_ACTIVATABLE_RELATED_ACTION:
714 g_value_set_object (value, priv->action);
716 case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
717 g_value_set_boolean (value, priv->use_action_appearance);
719 case PROP_ACTION_NAME:
720 g_value_set_string (value, gtk_action_helper_get_action_name (priv->action_helper));
722 case PROP_ACTION_TARGET:
723 g_value_set_variant (value, gtk_action_helper_get_action_target_value (priv->action_helper));
726 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
732 gtk_menu_item_destroy (GtkWidget *widget)
734 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
735 GtkMenuItemPrivate *priv = menu_item->priv;
738 gtk_widget_destroy (priv->submenu);
740 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->destroy (widget);
744 gtk_menu_item_detacher (GtkWidget *widget,
747 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
748 GtkMenuItemPrivate *priv = menu_item->priv;
750 g_return_if_fail (priv->submenu == (GtkWidget*) menu);
752 priv->submenu = NULL;
756 get_arrow_size (GtkWidget *widget,
761 PangoContext *context;
762 PangoFontMetrics *metrics;
763 gfloat arrow_scaling;
768 gtk_widget_style_get (widget,
769 "arrow-scaling", &arrow_scaling,
770 "arrow-spacing", &arrow_spacing,
774 *spacing = arrow_spacing;
776 context = gtk_widget_get_pango_context (child);
778 metrics = pango_context_get_metrics (context,
779 pango_context_get_font_description (context),
780 pango_context_get_language (context));
782 *size = (PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
783 pango_font_metrics_get_descent (metrics)));
785 pango_font_metrics_unref (metrics);
787 *size = *size * arrow_scaling;
792 gtk_menu_item_accel_width_foreach (GtkWidget *widget,
797 if (GTK_IS_ACCEL_LABEL (widget))
801 w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
802 *width = MAX (*width, w);
804 else if (GTK_IS_CONTAINER (widget))
805 gtk_container_foreach (GTK_CONTAINER (widget),
806 gtk_menu_item_accel_width_foreach,
811 get_minimum_width (GtkWidget *widget)
813 PangoContext *context;
814 PangoFontMetrics *metrics;
818 context = gtk_widget_get_pango_context (widget);
820 metrics = pango_context_get_metrics (context,
821 pango_context_get_font_description (context),
822 pango_context_get_language (context));
824 width = pango_font_metrics_get_approximate_char_width (metrics);
826 pango_font_metrics_unref (metrics);
828 gtk_widget_style_get (widget, "width-chars", &width_chars, NULL);
830 return PANGO_PIXELS (width_chars * width);
834 gtk_menu_item_get_preferred_width (GtkWidget *widget,
838 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
839 GtkMenuItemPrivate *priv = menu_item->priv;
845 gint min_width, nat_width;
846 GtkStyleContext *context;
850 min_width = nat_width = 0;
851 bin = GTK_BIN (widget);
852 parent = gtk_widget_get_parent (widget);
854 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
856 context = gtk_widget_get_style_context (widget);
857 state = gtk_widget_get_state_flags (widget);
858 gtk_style_context_get_padding (context, state, &padding);
860 min_width = (border_width * 2) + padding.left + padding.right;
861 nat_width = min_width;
863 child = gtk_bin_get_child (bin);
865 if (child != NULL && gtk_widget_get_visible (child))
867 GtkMenuItemPrivate *priv = menu_item->priv;
868 gint child_min, child_nat;
870 gtk_widget_get_preferred_width (child, &child_min, &child_nat);
872 if ((menu_item->priv->submenu && !GTK_IS_MENU_BAR (parent)) || priv->reserve_indicator)
874 gint arrow_spacing, arrow_size;
876 get_arrow_size (widget, child, &arrow_size, &arrow_spacing);
878 min_width += arrow_size;
879 min_width += arrow_spacing;
881 min_width = MAX (min_width, get_minimum_width (widget));
882 nat_width = min_width;
885 min_width += child_min;
886 nat_width += child_nat;
890 gtk_container_foreach (GTK_CONTAINER (menu_item),
891 gtk_menu_item_accel_width_foreach,
893 priv->accelerator_width = accel_width;
896 *minimum_size = min_width;
899 *natural_size = nat_width;
903 gtk_menu_item_real_get_height (GtkWidget *widget,
908 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
909 GtkMenuItemPrivate *priv = menu_item->priv;
911 GtkStyleContext *context;
918 gint min_height, nat_height;
921 min_height = nat_height = 0;
923 context = gtk_widget_get_style_context (widget);
924 state = gtk_widget_get_state_flags (widget);
925 gtk_style_context_get_padding (context, state, &padding);
927 bin = GTK_BIN (widget);
928 parent = gtk_widget_get_parent (widget);
930 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
931 min_height = (border_width * 2) + padding.top + padding.bottom;
935 avail_size = for_size;
936 avail_size -= (border_width * 2) + padding.left + padding.right;
939 nat_height = min_height;
941 child = gtk_bin_get_child (bin);
943 if (child != NULL && gtk_widget_get_visible (child))
945 gint child_min, child_nat;
946 gint arrow_size = 0, arrow_spacing = 0;
948 if ((priv->submenu && !GTK_IS_MENU_BAR (parent)) || priv->reserve_indicator)
949 get_arrow_size (widget, child, &arrow_size, &arrow_spacing);
953 avail_size -= (arrow_size + arrow_spacing);
954 gtk_widget_get_preferred_height_for_width (child,
961 gtk_widget_get_preferred_height (child, &child_min, &child_nat);
964 min_height += child_min;
965 nat_height += child_nat;
967 min_height = MAX (min_height, arrow_size);
968 nat_height = MAX (nat_height, arrow_size);
970 else /* separator item */
972 gboolean wide_separators;
973 gint separator_height;
975 gtk_widget_style_get (widget,
976 "wide-separators", &wide_separators,
977 "separator-height", &separator_height,
982 min_height += separator_height;
983 nat_height += separator_height;
987 /* force odd, so that we can have the same space above and
990 if (min_height % 2 == 0)
992 if (nat_height % 2 == 0)
998 gtk_container_foreach (GTK_CONTAINER (menu_item),
999 gtk_menu_item_accel_width_foreach,
1001 priv->accelerator_width = accel_width;
1004 *minimum_size = min_height;
1007 *natural_size = nat_height;
1011 gtk_menu_item_get_preferred_height (GtkWidget *widget,
1015 gtk_menu_item_real_get_height (widget, -1, minimum_size, natural_size);
1019 gtk_menu_item_get_preferred_height_for_width (GtkWidget *widget,
1024 gtk_menu_item_real_get_height (widget, for_size, minimum_size, natural_size);
1028 gtk_menu_item_buildable_interface_init (GtkBuildableIface *iface)
1030 parent_buildable_iface = g_type_interface_peek_parent (iface);
1031 iface->add_child = gtk_menu_item_buildable_add_child;
1032 iface->custom_finished = gtk_menu_item_buildable_custom_finished;
1036 gtk_menu_item_buildable_add_child (GtkBuildable *buildable,
1037 GtkBuilder *builder,
1041 if (type && strcmp (type, "submenu") == 0)
1042 gtk_menu_item_set_submenu (GTK_MENU_ITEM (buildable),
1043 GTK_WIDGET (child));
1045 parent_buildable_iface->add_child (buildable, builder, child, type);
1050 gtk_menu_item_buildable_custom_finished (GtkBuildable *buildable,
1051 GtkBuilder *builder,
1053 const gchar *tagname,
1056 GtkWidget *toplevel;
1058 if (strcmp (tagname, "accelerator") == 0)
1060 GtkMenuShell *menu_shell;
1063 menu_shell = GTK_MENU_SHELL (gtk_widget_get_parent (GTK_WIDGET (buildable)));
1066 while (GTK_IS_MENU (menu_shell) &&
1067 (attach = gtk_menu_get_attach_widget (GTK_MENU (menu_shell))) != NULL)
1068 menu_shell = GTK_MENU_SHELL (gtk_widget_get_parent (attach));
1070 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menu_shell));
1074 /* Fall back to something ... */
1075 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (buildable));
1077 g_warning ("found a GtkMenuItem '%s' without a parent GtkMenuShell, assigned accelerators wont work.",
1078 gtk_buildable_get_name (buildable));
1081 /* Feed the correct toplevel to the GtkWidget accelerator parsing code */
1082 _gtk_widget_buildable_finish_accelerator (GTK_WIDGET (buildable), toplevel, user_data);
1085 parent_buildable_iface->custom_finished (buildable, builder, child, tagname, user_data);
1090 gtk_menu_item_activatable_interface_init (GtkActivatableIface *iface)
1092 iface->update = gtk_menu_item_update;
1093 iface->sync_action_properties = gtk_menu_item_sync_action_properties;
1097 activatable_update_label (GtkMenuItem *menu_item, GtkAction *action)
1101 child = gtk_bin_get_child (GTK_BIN (menu_item));
1103 if (GTK_IS_LABEL (child))
1107 label = gtk_action_get_label (action);
1108 gtk_menu_item_set_label (menu_item, label);
1113 * gtk_menu_is_empty:
1114 * @menu: (allow-none): a #GtkMenu or %NULL
1116 * Determines whether @menu is empty. A menu is considered empty if it
1117 * the only visible children are tearoff menu items or "filler" menu
1118 * items which were inserted to mark the menu as empty.
1120 * This function is used by #GtkAction.
1122 * Return value: whether @menu is empty.
1125 gtk_menu_is_empty (GtkWidget *menu)
1127 GList *children, *cur;
1128 gboolean result = TRUE;
1130 g_return_val_if_fail (menu == NULL || GTK_IS_MENU (menu), TRUE);
1135 children = gtk_container_get_children (GTK_CONTAINER (menu));
1140 if (gtk_widget_get_visible (cur->data))
1142 if (!GTK_IS_TEAROFF_MENU_ITEM (cur->data) &&
1143 !g_object_get_data (cur->data, "gtk-empty-menu-item"))
1151 g_list_free (children);
1158 gtk_menu_item_update (GtkActivatable *activatable,
1160 const gchar *property_name)
1162 GtkMenuItem *menu_item = GTK_MENU_ITEM (activatable);
1163 GtkMenuItemPrivate *priv = menu_item->priv;
1165 if (strcmp (property_name, "visible") == 0)
1166 _gtk_action_sync_menu_visible (action, GTK_WIDGET (menu_item),
1167 gtk_menu_is_empty (gtk_menu_item_get_submenu (menu_item)));
1168 else if (strcmp (property_name, "sensitive") == 0)
1169 gtk_widget_set_sensitive (GTK_WIDGET (menu_item), gtk_action_is_sensitive (action));
1170 else if (priv->use_action_appearance)
1172 if (strcmp (property_name, "label") == 0)
1173 activatable_update_label (menu_item, action);
1178 gtk_menu_item_sync_action_properties (GtkActivatable *activatable,
1181 GtkMenuItem *menu_item = GTK_MENU_ITEM (activatable);
1182 GtkMenuItemPrivate *priv = menu_item->priv;
1185 if (!priv->use_action_appearance || !action)
1187 label = gtk_bin_get_child (GTK_BIN (menu_item));
1189 if (GTK_IS_ACCEL_LABEL (label))
1190 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (label), GTK_WIDGET (menu_item));
1196 _gtk_action_sync_menu_visible (action, GTK_WIDGET (menu_item),
1197 gtk_menu_is_empty (gtk_menu_item_get_submenu (menu_item)));
1199 gtk_widget_set_sensitive (GTK_WIDGET (menu_item), gtk_action_is_sensitive (action));
1201 if (priv->use_action_appearance)
1203 label = gtk_bin_get_child (GTK_BIN (menu_item));
1205 /* make sure label is a label, deleting it otherwise */
1206 if (label && !GTK_IS_LABEL (label))
1208 gtk_container_remove (GTK_CONTAINER (menu_item), label);
1211 /* Make sure that menu_item has a label and that any
1212 * accelerators are set */
1213 gtk_menu_item_ensure_label (menu_item);
1214 gtk_menu_item_set_use_underline (menu_item, TRUE);
1215 /* Make label point to the menu_item's label */
1216 label = gtk_bin_get_child (GTK_BIN (menu_item));
1218 if (GTK_IS_ACCEL_LABEL (label) && gtk_action_get_accel_path (action))
1220 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (label), NULL);
1221 gtk_accel_label_set_accel_closure (GTK_ACCEL_LABEL (label),
1222 gtk_action_get_accel_closure (action));
1225 activatable_update_label (menu_item, action);
1230 gtk_menu_item_set_related_action (GtkMenuItem *menu_item,
1233 GtkMenuItemPrivate *priv = menu_item->priv;
1235 if (priv->action == action)
1240 gtk_action_disconnect_accelerator (priv->action);
1245 const gchar *accel_path;
1247 accel_path = gtk_action_get_accel_path (action);
1250 gtk_action_connect_accelerator (action);
1251 gtk_menu_item_set_accel_path (menu_item, accel_path);
1255 gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (menu_item), action);
1257 priv->action = action;
1261 gtk_menu_item_set_use_action_appearance (GtkMenuItem *menu_item,
1262 gboolean use_appearance)
1264 GtkMenuItemPrivate *priv = menu_item->priv;
1266 if (priv->use_action_appearance != use_appearance)
1268 priv->use_action_appearance = use_appearance;
1270 gtk_activatable_sync_action_properties (GTK_ACTIVATABLE (menu_item), priv->action);
1276 * gtk_menu_item_set_submenu:
1277 * @menu_item: a #GtkMenuItem
1278 * @submenu: (allow-none): the submenu, or %NULL
1280 * Sets or replaces the menu item's submenu, or removes it when a %NULL
1281 * submenu is passed.
1284 gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
1287 GtkMenuItemPrivate *priv = menu_item->priv;
1289 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1290 g_return_if_fail (submenu == NULL || GTK_IS_MENU (submenu));
1292 if (priv->submenu != submenu)
1295 gtk_menu_detach (GTK_MENU (priv->submenu));
1299 priv->submenu = submenu;
1300 gtk_menu_attach_to_widget (GTK_MENU (submenu),
1301 GTK_WIDGET (menu_item),
1302 gtk_menu_item_detacher);
1305 if (gtk_widget_get_parent (GTK_WIDGET (menu_item)))
1306 gtk_widget_queue_resize (GTK_WIDGET (menu_item));
1308 g_object_notify (G_OBJECT (menu_item), "submenu");
1313 * gtk_menu_item_get_submenu:
1314 * @menu_item: a #GtkMenuItem
1316 * Gets the submenu underneath this menu item, if any.
1317 * See gtk_menu_item_set_submenu().
1319 * Return value: (transfer none): submenu for this menu item, or %NULL if none
1322 gtk_menu_item_get_submenu (GtkMenuItem *menu_item)
1324 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
1326 return menu_item->priv->submenu;
1329 void _gtk_menu_item_set_placement (GtkMenuItem *menu_item,
1330 GtkSubmenuPlacement placement);
1333 _gtk_menu_item_set_placement (GtkMenuItem *menu_item,
1334 GtkSubmenuPlacement placement)
1336 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1338 menu_item->priv->submenu_placement = placement;
1342 gtk_menu_item_select (GtkMenuItem *menu_item)
1346 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1348 g_signal_emit (menu_item, menu_item_signals[SELECT], 0);
1350 /* Enable themeing of the parent menu item depending on whether
1351 * something is selected in its submenu
1353 parent = gtk_widget_get_parent (GTK_WIDGET (menu_item));
1354 if (GTK_IS_MENU (parent))
1356 GtkMenu *menu = GTK_MENU (parent);
1358 if (menu->priv->parent_menu_item)
1359 gtk_widget_queue_draw (GTK_WIDGET (menu->priv->parent_menu_item));
1364 * gtk_menu_item_deselect:
1365 * @menu_item: the menu item
1367 * Emits the #GtkMenuItem::deselect signal on the given item. Behaves
1368 * exactly like #gtk_item_deselect.
1371 gtk_menu_item_deselect (GtkMenuItem *menu_item)
1375 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1377 g_signal_emit (menu_item, menu_item_signals[DESELECT], 0);
1379 /* Enable themeing of the parent menu item depending on whether
1380 * something is selected in its submenu
1382 parent = gtk_widget_get_parent (GTK_WIDGET (menu_item));
1383 if (GTK_IS_MENU (parent))
1385 GtkMenu *menu = GTK_MENU (parent);
1387 if (menu->priv->parent_menu_item)
1388 gtk_widget_queue_draw (GTK_WIDGET (menu->priv->parent_menu_item));
1393 * gtk_menu_item_activate:
1394 * @menu_item: the menu item
1396 * Emits the #GtkMenuItem::activate signal on the given item
1399 gtk_menu_item_activate (GtkMenuItem *menu_item)
1401 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1403 g_signal_emit (menu_item, menu_item_signals[ACTIVATE], 0);
1407 * gtk_menu_item_toggle_size_request:
1408 * @menu_item: the menu item
1409 * @requisition: the requisition to use as signal data.
1411 * Emits the #GtkMenuItem::toggle-size-request signal on the given item.
1414 gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
1417 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1419 g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_REQUEST], 0, requisition);
1423 * gtk_menu_item_toggle_size_allocate:
1424 * @menu_item: the menu item.
1425 * @allocation: the allocation to use as signal data.
1427 * Emits the #GtkMenuItem::toggle-size-allocate signal on the given item.
1430 gtk_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
1433 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1435 g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_ALLOCATE], 0, allocation);
1439 gtk_menu_item_size_allocate (GtkWidget *widget,
1440 GtkAllocation *allocation)
1442 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1443 GtkMenuItemPrivate *priv = menu_item->priv;
1445 GtkAllocation child_allocation;
1446 GtkTextDirection direction;
1447 GtkPackDirection child_pack_dir;
1451 g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1452 g_return_if_fail (allocation != NULL);
1454 bin = GTK_BIN (widget);
1456 direction = gtk_widget_get_direction (widget);
1458 parent = gtk_widget_get_parent (widget);
1459 if (GTK_IS_MENU_BAR (parent))
1461 child_pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (parent));
1465 child_pack_dir = GTK_PACK_DIRECTION_LTR;
1468 gtk_widget_set_allocation (widget, allocation);
1470 child = gtk_bin_get_child (bin);
1473 GtkStyleContext *context;
1474 GtkStateFlags state;
1478 context = gtk_widget_get_style_context (widget);
1479 state = gtk_widget_get_state_flags (widget);
1480 gtk_style_context_get_padding (context, state, &padding);
1482 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
1483 child_allocation.x = border_width + padding.left;
1484 child_allocation.y = border_width + padding.top;
1486 child_allocation.width = allocation->width - (border_width * 2) -
1487 padding.left - padding.right;
1488 child_allocation.height = allocation->height - (border_width * 2) -
1489 padding.top - padding.bottom;
1491 if (child_pack_dir == GTK_PACK_DIRECTION_LTR ||
1492 child_pack_dir == GTK_PACK_DIRECTION_RTL)
1494 if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_RTL))
1495 child_allocation.x += priv->toggle_size;
1496 child_allocation.width -= priv->toggle_size;
1500 if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_BTT))
1501 child_allocation.y += priv->toggle_size;
1502 child_allocation.height -= priv->toggle_size;
1505 child_allocation.x += allocation->x;
1506 child_allocation.y += allocation->y;
1508 if ((priv->submenu && !GTK_IS_MENU_BAR (parent)) || priv->reserve_indicator)
1510 gint arrow_spacing, arrow_size;
1512 get_arrow_size (widget, child, &arrow_size, &arrow_spacing);
1514 if (direction == GTK_TEXT_DIR_RTL)
1515 child_allocation.x += arrow_size + arrow_spacing;
1516 child_allocation.width -= arrow_size + arrow_spacing;
1519 if (child_allocation.width < 1)
1520 child_allocation.width = 1;
1522 gtk_widget_size_allocate (child, &child_allocation);
1525 if (gtk_widget_get_realized (widget))
1526 gdk_window_move_resize (priv->event_window,
1527 allocation->x, allocation->y,
1528 allocation->width, allocation->height);
1531 gtk_menu_reposition (GTK_MENU (priv->submenu));
1535 gtk_menu_item_realize (GtkWidget *widget)
1537 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1538 GtkMenuItemPrivate *priv = menu_item->priv;
1539 GtkAllocation allocation;
1541 GdkWindowAttr attributes;
1542 gint attributes_mask;
1544 gtk_widget_set_realized (widget, TRUE);
1546 window = gtk_widget_get_parent_window (widget);
1547 gtk_widget_set_window (widget, window);
1548 g_object_ref (window);
1550 gtk_widget_get_allocation (widget, &allocation);
1552 attributes.x = allocation.x;
1553 attributes.y = allocation.y;
1554 attributes.width = allocation.width;
1555 attributes.height = allocation.height;
1556 attributes.window_type = GDK_WINDOW_CHILD;
1557 attributes.wclass = GDK_INPUT_ONLY;
1558 attributes.event_mask = (gtk_widget_get_events (widget) |
1559 GDK_BUTTON_PRESS_MASK |
1560 GDK_BUTTON_RELEASE_MASK |
1561 GDK_ENTER_NOTIFY_MASK |
1562 GDK_LEAVE_NOTIFY_MASK |
1563 GDK_POINTER_MOTION_MASK);
1565 attributes_mask = GDK_WA_X | GDK_WA_Y;
1567 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1568 &attributes, attributes_mask);
1569 gtk_widget_register_window (widget, priv->event_window);
1573 gtk_menu_item_unrealize (GtkWidget *widget)
1575 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1576 GtkMenuItemPrivate *priv = menu_item->priv;
1578 gtk_widget_unregister_window (widget, priv->event_window);
1579 gdk_window_destroy (priv->event_window);
1580 priv->event_window = NULL;
1582 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->unrealize (widget);
1586 gtk_menu_item_map (GtkWidget *widget)
1588 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1589 GtkMenuItemPrivate *priv = menu_item->priv;
1591 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->map (widget);
1593 gdk_window_show (priv->event_window);
1597 gtk_menu_item_unmap (GtkWidget *widget)
1599 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1600 GtkMenuItemPrivate *priv = menu_item->priv;
1602 gdk_window_hide (priv->event_window);
1604 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->unmap (widget);
1608 gtk_menu_item_enter (GtkWidget *widget,
1609 GdkEventCrossing *event)
1611 g_return_val_if_fail (event != NULL, FALSE);
1613 return gtk_widget_event (gtk_widget_get_parent (widget), (GdkEvent *) event);
1617 gtk_menu_item_leave (GtkWidget *widget,
1618 GdkEventCrossing *event)
1620 g_return_val_if_fail (event != NULL, FALSE);
1622 return gtk_widget_event (gtk_widget_get_parent (widget), (GdkEvent*) event);
1626 gtk_menu_item_draw (GtkWidget *widget,
1629 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1630 GtkMenuItemPrivate *priv = menu_item->priv;
1631 GtkStateFlags state;
1632 GtkStyleContext *context;
1634 GtkWidget *child, *parent;
1635 gint x, y, w, h, width, height;
1636 guint border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
1638 state = gtk_widget_get_state_flags (widget);
1639 context = gtk_widget_get_style_context (widget);
1640 width = gtk_widget_get_allocated_width (widget);
1641 height = gtk_widget_get_allocated_height (widget);
1645 w = width - border_width * 2;
1646 h = height - border_width * 2;
1648 child = gtk_bin_get_child (GTK_BIN (menu_item));
1649 parent = gtk_widget_get_parent (widget);
1651 gtk_style_context_get_padding (context, state, &padding);
1653 gtk_render_background (context, cr, x, y, w, h);
1654 gtk_render_frame (context, cr, x, y, w, h);
1656 if (priv->submenu && !GTK_IS_MENU_BAR (parent))
1658 gint arrow_x, arrow_y;
1660 GtkTextDirection direction;
1663 direction = gtk_widget_get_direction (widget);
1664 get_arrow_size (widget, child, &arrow_size, NULL);
1666 if (direction == GTK_TEXT_DIR_LTR)
1668 arrow_x = x + w - arrow_size;
1674 angle = (3 * G_PI) / 2;
1677 arrow_y = y + (h - arrow_size) / 2;
1679 gtk_render_arrow (context, cr, angle, arrow_x, arrow_y, arrow_size);
1683 gboolean wide_separators;
1684 gint separator_height;
1686 gtk_widget_style_get (widget,
1687 "wide-separators", &wide_separators,
1688 "separator-height", &separator_height,
1690 if (wide_separators)
1691 gtk_render_frame (context, cr,
1694 w - padding.left - padding.right,
1697 gtk_render_line (context, cr,
1700 x + w - padding.right - 1,
1704 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->draw (widget, cr);
1710 * gtk_menu_item_select:
1711 * @menu_item: the menu item
1713 * Emits the #GtkMenuItem::select signal on the given item. Behaves
1714 * exactly like #gtk_item_select.
1717 gtk_real_menu_item_select (GtkMenuItem *menu_item)
1719 GtkMenuItemPrivate *priv = menu_item->priv;
1720 GdkDevice *source_device = NULL;
1721 GdkEvent *current_event;
1723 current_event = gtk_get_current_event ();
1727 source_device = gdk_event_get_source_device (current_event);
1728 gdk_event_free (current_event);
1731 if ((!source_device ||
1732 gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN) &&
1734 (!gtk_widget_get_mapped (priv->submenu) ||
1735 GTK_MENU (priv->submenu)->priv->tearoff_active))
1737 _gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item), TRUE);
1740 gtk_widget_set_state_flags (GTK_WIDGET (menu_item),
1741 GTK_STATE_FLAG_PRELIGHT, FALSE);
1742 gtk_widget_queue_draw (GTK_WIDGET (menu_item));
1746 gtk_real_menu_item_deselect (GtkMenuItem *menu_item)
1748 GtkMenuItemPrivate *priv = menu_item->priv;
1751 _gtk_menu_item_popdown_submenu (GTK_WIDGET (menu_item));
1753 gtk_widget_unset_state_flags (GTK_WIDGET (menu_item),
1754 GTK_STATE_FLAG_PRELIGHT);
1755 gtk_widget_queue_draw (GTK_WIDGET (menu_item));
1759 gtk_menu_item_mnemonic_activate (GtkWidget *widget,
1760 gboolean group_cycling)
1764 parent = gtk_widget_get_parent (widget);
1766 if (GTK_IS_MENU_SHELL (parent))
1767 _gtk_menu_shell_set_keyboard_mode (GTK_MENU_SHELL (parent), TRUE);
1769 if (group_cycling &&
1771 GTK_IS_MENU_SHELL (parent) &&
1772 GTK_MENU_SHELL (parent)->priv->active)
1774 gtk_menu_shell_select_item (GTK_MENU_SHELL (parent), widget);
1777 g_signal_emit (widget, menu_item_signals[ACTIVATE_ITEM], 0);
1783 gtk_real_menu_item_activate (GtkMenuItem *menu_item)
1785 GtkMenuItemPrivate *priv = menu_item->priv;
1787 if (priv->action_helper)
1788 gtk_action_helper_activate (priv->action_helper);
1791 gtk_action_activate (priv->action);
1796 gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
1798 GtkMenuItemPrivate *priv = menu_item->priv;
1802 widget = GTK_WIDGET (menu_item);
1803 parent = gtk_widget_get_parent (widget);
1805 if (parent && GTK_IS_MENU_SHELL (parent))
1807 GtkMenuShell *menu_shell = GTK_MENU_SHELL (parent);
1809 if (priv->submenu == NULL)
1810 gtk_menu_shell_activate_item (menu_shell, widget, TRUE);
1813 gtk_menu_shell_select_item (menu_shell, widget);
1814 _gtk_menu_item_popup_submenu (widget, FALSE);
1816 gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->submenu), TRUE);
1822 gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
1825 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1831 gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
1834 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1836 menu_item->priv->toggle_size = allocation;
1840 gtk_real_menu_item_set_label (GtkMenuItem *menu_item,
1845 gtk_menu_item_ensure_label (menu_item);
1847 child = gtk_bin_get_child (GTK_BIN (menu_item));
1848 if (GTK_IS_LABEL (child))
1850 gtk_label_set_label (GTK_LABEL (child), label ? label : "");
1852 g_object_notify (G_OBJECT (menu_item), "label");
1856 static const gchar *
1857 gtk_real_menu_item_get_label (GtkMenuItem *menu_item)
1861 gtk_menu_item_ensure_label (menu_item);
1863 child = gtk_bin_get_child (GTK_BIN (menu_item));
1864 if (GTK_IS_LABEL (child))
1865 return gtk_label_get_label (GTK_LABEL (child));
1871 free_timeval (GTimeVal *val)
1873 g_slice_free (GTimeVal, val);
1877 gtk_menu_item_real_popup_submenu (GtkWidget *widget,
1878 gboolean remember_exact_time)
1880 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1881 GtkMenuItemPrivate *priv = menu_item->priv;
1884 parent = gtk_widget_get_parent (widget);
1886 if (gtk_widget_is_sensitive (priv->submenu) && parent)
1888 gboolean take_focus;
1889 GtkMenuPositionFunc menu_position_func;
1891 take_focus = gtk_menu_shell_get_take_focus (GTK_MENU_SHELL (parent));
1892 gtk_menu_shell_set_take_focus (GTK_MENU_SHELL (priv->submenu), take_focus);
1894 if (remember_exact_time)
1896 GTimeVal *popup_time = g_slice_new0 (GTimeVal);
1898 g_get_current_time (popup_time);
1900 g_object_set_data_full (G_OBJECT (priv->submenu),
1901 "gtk-menu-exact-popup-time", popup_time,
1902 (GDestroyNotify) free_timeval);
1906 g_object_set_data (G_OBJECT (priv->submenu),
1907 "gtk-menu-exact-popup-time", NULL);
1910 /* gtk_menu_item_position_menu positions the submenu from the
1911 * menuitems position. If the menuitem doesn't have a window,
1912 * that doesn't work. In that case we use the default
1913 * positioning function instead which places the submenu at the
1916 if (gtk_widget_get_window (widget))
1917 menu_position_func = gtk_menu_item_position_menu;
1919 menu_position_func = NULL;
1921 gtk_menu_popup (GTK_MENU (priv->submenu),
1926 GTK_MENU_SHELL (parent)->priv->button,
1930 /* Enable themeing of the parent menu item depending on whether
1931 * its submenu is shown or not.
1933 gtk_widget_queue_draw (widget);
1937 gtk_menu_item_popup_timeout (gpointer data)
1939 GtkMenuItem *menu_item = GTK_MENU_ITEM (data);
1940 GtkMenuItemPrivate *priv = menu_item->priv;
1943 parent = gtk_widget_get_parent (GTK_WIDGET (menu_item));
1945 if ((GTK_IS_MENU_SHELL (parent) && GTK_MENU_SHELL (parent)->priv->active) ||
1946 (GTK_IS_MENU (parent) && GTK_MENU (parent)->priv->torn_off))
1948 gtk_menu_item_real_popup_submenu (GTK_WIDGET (menu_item), TRUE);
1949 if (priv->timer_from_keypress && priv->submenu)
1950 GTK_MENU_SHELL (priv->submenu)->priv->ignore_enter = TRUE;
1959 get_popup_delay (GtkWidget *widget)
1963 parent = gtk_widget_get_parent (widget);
1964 if (GTK_IS_MENU_SHELL (parent))
1966 return _gtk_menu_shell_get_popup_delay (GTK_MENU_SHELL (parent));
1972 g_object_get (gtk_widget_get_settings (widget),
1973 "gtk-menu-popup-delay", &popup_delay,
1981 _gtk_menu_item_popup_submenu (GtkWidget *widget,
1982 gboolean with_delay)
1984 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
1985 GtkMenuItemPrivate *priv = menu_item->priv;
1989 g_source_remove (priv->timer);
1996 gint popup_delay = get_popup_delay (widget);
1998 if (popup_delay > 0)
2000 GdkEvent *event = gtk_get_current_event ();
2002 priv->timer = gdk_threads_add_timeout (popup_delay,
2003 gtk_menu_item_popup_timeout,
2007 event->type != GDK_BUTTON_PRESS &&
2008 event->type != GDK_ENTER_NOTIFY)
2009 priv->timer_from_keypress = TRUE;
2011 priv->timer_from_keypress = FALSE;
2014 gdk_event_free (event);
2020 gtk_menu_item_real_popup_submenu (widget, FALSE);
2024 _gtk_menu_item_popdown_submenu (GtkWidget *widget)
2026 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
2027 GtkMenuItemPrivate *priv = menu_item->priv;
2031 g_object_set_data (G_OBJECT (priv->submenu),
2032 "gtk-menu-exact-popup-time", NULL);
2036 g_source_remove (priv->timer);
2040 gtk_menu_popdown (GTK_MENU (priv->submenu));
2042 gtk_widget_queue_draw (widget);
2047 get_offsets (GtkMenu *menu,
2048 gint *horizontal_offset,
2049 gint *vertical_offset)
2051 GtkStyleContext *context;
2052 GtkStateFlags state;
2055 gtk_widget_style_get (GTK_WIDGET (menu),
2056 "horizontal-offset", horizontal_offset,
2057 "vertical-offset", vertical_offset,
2060 context = gtk_widget_get_style_context (GTK_WIDGET (menu));
2061 state = gtk_widget_get_state_flags (GTK_WIDGET (menu));
2062 gtk_style_context_get_padding (context, state, &padding);
2064 *vertical_offset -= padding.top;
2065 *horizontal_offset += padding.left;
2069 gtk_menu_item_position_menu (GtkMenu *menu,
2075 GtkMenuItem *menu_item = GTK_MENU_ITEM (user_data);
2076 GtkMenuItemPrivate *priv = menu_item->priv;
2077 GtkAllocation allocation;
2079 GtkMenuItem *parent_menu_item;
2082 gint twidth, theight;
2084 GtkTextDirection direction;
2085 GdkRectangle monitor;
2087 gint horizontal_offset;
2088 gint vertical_offset;
2089 gint available_left, available_right;
2090 GtkStyleContext *context;
2091 GtkStateFlags state;
2092 GtkBorder parent_padding;
2094 g_return_if_fail (menu != NULL);
2095 g_return_if_fail (x != NULL);
2096 g_return_if_fail (y != NULL);
2098 widget = GTK_WIDGET (user_data);
2103 direction = gtk_widget_get_direction (widget);
2105 twidth = gtk_widget_get_allocated_width (GTK_WIDGET (menu));
2106 theight = gtk_widget_get_allocated_height (GTK_WIDGET (menu));
2108 screen = gtk_widget_get_screen (GTK_WIDGET (menu));
2109 monitor_num = gdk_screen_get_monitor_at_window (screen, priv->event_window);
2110 if (monitor_num < 0)
2112 gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
2114 if (!gdk_window_get_origin (gtk_widget_get_window (widget), &tx, &ty))
2116 g_warning ("Menu not on screen");
2120 gtk_widget_get_allocation (widget, &allocation);
2125 get_offsets (menu, &horizontal_offset, &vertical_offset);
2127 available_left = tx - monitor.x;
2128 available_right = monitor.x + monitor.width - (tx + allocation.width);
2130 parent = gtk_widget_get_parent (widget);
2131 priv->from_menubar = GTK_IS_MENU_BAR (parent);
2133 switch (priv->submenu_placement)
2135 case GTK_TOP_BOTTOM:
2136 if (direction == GTK_TEXT_DIR_LTR)
2137 priv->submenu_direction = GTK_DIRECTION_RIGHT;
2140 priv->submenu_direction = GTK_DIRECTION_LEFT;
2141 tx += allocation.width - twidth;
2143 if ((ty + allocation.height + theight) <= monitor.y + monitor.height)
2144 ty += allocation.height;
2145 else if ((ty - theight) >= monitor.y)
2147 else if (monitor.y + monitor.height - (ty + allocation.height) > ty)
2148 ty += allocation.height;
2153 case GTK_LEFT_RIGHT:
2154 if (GTK_IS_MENU (parent))
2155 parent_menu_item = GTK_MENU_ITEM (GTK_MENU (parent)->priv->parent_menu_item);
2157 parent_menu_item = NULL;
2159 context = gtk_widget_get_style_context (parent);
2160 state = gtk_widget_get_state_flags (parent);
2161 gtk_style_context_get_padding (context, state, &parent_padding);
2163 if (parent_menu_item && !GTK_MENU (parent)->priv->torn_off)
2165 priv->submenu_direction = parent_menu_item->priv->submenu_direction;
2169 if (direction == GTK_TEXT_DIR_LTR)
2170 priv->submenu_direction = GTK_DIRECTION_RIGHT;
2172 priv->submenu_direction = GTK_DIRECTION_LEFT;
2175 switch (priv->submenu_direction)
2177 case GTK_DIRECTION_LEFT:
2178 if (tx - twidth - parent_padding.left - horizontal_offset >= monitor.x ||
2179 available_left >= available_right)
2180 tx -= twidth + parent_padding.left + horizontal_offset;
2183 priv->submenu_direction = GTK_DIRECTION_RIGHT;
2184 tx += allocation.width + parent_padding.right + horizontal_offset;
2188 case GTK_DIRECTION_RIGHT:
2189 if (tx + allocation.width + parent_padding.right + horizontal_offset + twidth <= monitor.x + monitor.width ||
2190 available_right >= available_left)
2191 tx += allocation.width + parent_padding.right + horizontal_offset;
2194 priv->submenu_direction = GTK_DIRECTION_LEFT;
2195 tx -= twidth + parent_padding.left + horizontal_offset;
2200 ty += vertical_offset;
2202 /* If the height of the menu doesn't fit we move it upward. */
2203 ty = CLAMP (ty, monitor.y, MAX (monitor.y, monitor.y + monitor.height - theight));
2207 /* If we have negative, tx, here it is because we can't get
2208 * the menu all the way on screen. Favor the left portion.
2210 *x = CLAMP (tx, monitor.x, MAX (monitor.x, monitor.x + monitor.width - twidth));
2213 gtk_menu_set_monitor (menu, monitor_num);
2215 if (!gtk_widget_get_visible (menu->priv->toplevel))
2217 gtk_window_set_type_hint (GTK_WINDOW (menu->priv->toplevel), priv->from_menubar?
2218 GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU : GDK_WINDOW_TYPE_HINT_POPUP_MENU);
2223 * gtk_menu_item_set_right_justified:
2224 * @menu_item: a #GtkMenuItem.
2225 * @right_justified: if %TRUE the menu item will appear at the
2226 * far right if added to a menu bar
2228 * Sets whether the menu item appears justified at the right
2229 * side of a menu bar. This was traditionally done for "Help"
2230 * menu items, but is now considered a bad idea. (If the widget
2231 * layout is reversed for a right-to-left language like Hebrew
2232 * or Arabic, right-justified-menu-items appear at the left.)
2234 * Deprecated: 3.2: If you insist on using it, use
2235 * gtk_widget_set_hexpand() and gtk_widget_set_halign().
2238 gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
2239 gboolean right_justified)
2241 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2243 gtk_menu_item_do_set_right_justified (menu_item, right_justified);
2247 * gtk_menu_item_get_right_justified:
2248 * @menu_item: a #GtkMenuItem
2250 * Gets whether the menu item appears justified at the right
2251 * side of the menu bar.
2253 * Return value: %TRUE if the menu item will appear at the
2254 * far right if added to a menu bar.
2256 * Deprecated: 3.2: See gtk_menu_item_set_right_justified()
2259 gtk_menu_item_get_right_justified (GtkMenuItem *menu_item)
2261 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
2263 return menu_item->priv->right_justify;
2268 gtk_menu_item_show_all (GtkWidget *widget)
2270 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
2271 GtkMenuItemPrivate *priv = menu_item->priv;
2273 /* show children including submenu */
2275 gtk_widget_show_all (priv->submenu);
2276 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
2278 gtk_widget_show (widget);
2282 gtk_menu_item_can_activate_accel (GtkWidget *widget,
2287 parent = gtk_widget_get_parent (widget);
2289 /* Chain to the parent GtkMenu for further checks */
2290 return (gtk_widget_is_sensitive (widget) && gtk_widget_get_visible (widget) &&
2291 parent && gtk_widget_can_activate_accel (parent, signal_id));
2295 gtk_menu_item_accel_name_foreach (GtkWidget *widget,
2298 const gchar **path_p = data;
2302 if (GTK_IS_LABEL (widget))
2304 *path_p = gtk_label_get_text (GTK_LABEL (widget));
2305 if (*path_p && (*path_p)[0] == 0)
2308 else if (GTK_IS_CONTAINER (widget))
2309 gtk_container_foreach (GTK_CONTAINER (widget),
2310 gtk_menu_item_accel_name_foreach,
2316 gtk_menu_item_parent_set (GtkWidget *widget,
2317 GtkWidget *previous_parent)
2319 GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
2323 parent = gtk_widget_get_parent (widget);
2324 menu = GTK_IS_MENU (parent) ? GTK_MENU (parent) : NULL;
2327 _gtk_menu_item_refresh_accel_path (menu_item,
2328 menu->priv->accel_path,
2329 menu->priv->accel_group,
2332 if (GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->parent_set)
2333 GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->parent_set (widget, previous_parent);
2337 _gtk_menu_item_refresh_accel_path (GtkMenuItem *menu_item,
2338 const gchar *prefix,
2339 GtkAccelGroup *accel_group,
2340 gboolean group_changed)
2342 GtkMenuItemPrivate *priv = menu_item->priv;
2346 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2347 g_return_if_fail (!accel_group || GTK_IS_ACCEL_GROUP (accel_group));
2349 widget = GTK_WIDGET (menu_item);
2353 gtk_widget_set_accel_path (widget, NULL, NULL);
2357 path = _gtk_widget_get_accel_path (widget, NULL);
2358 if (!path) /* no active accel_path yet */
2360 path = priv->accel_path;
2361 if (!path && prefix)
2363 const gchar *postfix = NULL;
2366 /* try to construct one from label text */
2367 gtk_container_foreach (GTK_CONTAINER (menu_item),
2368 gtk_menu_item_accel_name_foreach,
2372 new_path = g_strconcat (prefix, "/", postfix, NULL);
2373 path = priv->accel_path = (char*)g_intern_string (new_path);
2378 gtk_widget_set_accel_path (widget, path, accel_group);
2380 else if (group_changed) /* reinstall accelerators */
2381 gtk_widget_set_accel_path (widget, path, accel_group);
2385 * gtk_menu_item_set_accel_path:
2386 * @menu_item: a valid #GtkMenuItem
2387 * @accel_path: (allow-none): accelerator path, corresponding to this menu
2388 * item's functionality, or %NULL to unset the current path.
2390 * Set the accelerator path on @menu_item, through which runtime
2391 * changes of the menu item's accelerator caused by the user can be
2392 * identified and saved to persistent storage (see gtk_accel_map_save()
2393 * on this). To set up a default accelerator for this menu item, call
2394 * gtk_accel_map_add_entry() with the same @accel_path. See also
2395 * gtk_accel_map_add_entry() on the specifics of accelerator paths,
2396 * and gtk_menu_set_accel_path() for a more convenient variant of
2399 * This function is basically a convenience wrapper that handles
2400 * calling gtk_widget_set_accel_path() with the appropriate accelerator
2401 * group for the menu item.
2403 * Note that you do need to set an accelerator on the parent menu with
2404 * gtk_menu_set_accel_group() for this to work.
2406 * Note that @accel_path string will be stored in a #GQuark.
2407 * Therefore, if you pass a static string, you can save some memory
2408 * by interning it first with g_intern_static_string().
2411 gtk_menu_item_set_accel_path (GtkMenuItem *menu_item,
2412 const gchar *accel_path)
2414 GtkMenuItemPrivate *priv = menu_item->priv;
2418 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2419 g_return_if_fail (accel_path == NULL ||
2420 (accel_path[0] == '<' && strchr (accel_path, '/')));
2422 widget = GTK_WIDGET (menu_item);
2424 /* store new path */
2425 priv->accel_path = (char*)g_intern_string (accel_path);
2427 /* forget accelerators associated with old path */
2428 gtk_widget_set_accel_path (widget, NULL, NULL);
2430 /* install accelerators associated with new path */
2431 parent = gtk_widget_get_parent (widget);
2432 if (GTK_IS_MENU (parent))
2434 GtkMenu *menu = GTK_MENU (parent);
2436 if (menu->priv->accel_group)
2437 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
2439 menu->priv->accel_group,
2445 * gtk_menu_item_get_accel_path:
2446 * @menu_item: a valid #GtkMenuItem
2448 * Retrieve the accelerator path that was previously set on @menu_item.
2450 * See gtk_menu_item_set_accel_path() for details.
2452 * Returns: the accelerator path corresponding to this menu
2453 * item's functionality, or %NULL if not set
2458 gtk_menu_item_get_accel_path (GtkMenuItem *menu_item)
2460 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
2462 return menu_item->priv->accel_path;
2466 gtk_menu_item_forall (GtkContainer *container,
2467 gboolean include_internals,
2468 GtkCallback callback,
2469 gpointer callback_data)
2473 g_return_if_fail (GTK_IS_MENU_ITEM (container));
2474 g_return_if_fail (callback != NULL);
2476 child = gtk_bin_get_child (GTK_BIN (container));
2478 callback (child, callback_data);
2482 _gtk_menu_item_is_selectable (GtkWidget *menu_item)
2484 if ((!gtk_bin_get_child (GTK_BIN (menu_item)) &&
2485 G_OBJECT_TYPE (menu_item) == GTK_TYPE_MENU_ITEM) ||
2486 GTK_IS_SEPARATOR_MENU_ITEM (menu_item) ||
2487 !gtk_widget_is_sensitive (menu_item) ||
2488 !gtk_widget_get_visible (menu_item))
2495 gtk_menu_item_ensure_label (GtkMenuItem *menu_item)
2497 GtkWidget *accel_label;
2499 if (!gtk_bin_get_child (GTK_BIN (menu_item)))
2501 accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
2502 gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
2504 gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
2505 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
2506 GTK_WIDGET (menu_item));
2507 gtk_widget_show (accel_label);
2512 * gtk_menu_item_set_label:
2513 * @menu_item: a #GtkMenuItem
2514 * @label: the text you want to set
2516 * Sets @text on the @menu_item label
2521 gtk_menu_item_set_label (GtkMenuItem *menu_item,
2524 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2526 GTK_MENU_ITEM_GET_CLASS (menu_item)->set_label (menu_item, label);
2530 * gtk_menu_item_get_label:
2531 * @menu_item: a #GtkMenuItem
2533 * Sets @text on the @menu_item label
2535 * Returns: The text in the @menu_item label. This is the internal
2536 * string used by the label, and must not be modified.
2541 gtk_menu_item_get_label (GtkMenuItem *menu_item)
2543 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
2545 return GTK_MENU_ITEM_GET_CLASS (menu_item)->get_label (menu_item);
2549 * gtk_menu_item_set_use_underline:
2550 * @menu_item: a #GtkMenuItem
2551 * @setting: %TRUE if underlines in the text indicate mnemonics
2553 * If true, an underline in the text indicates the next character
2554 * should be used for the mnemonic accelerator key.
2559 gtk_menu_item_set_use_underline (GtkMenuItem *menu_item,
2564 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2566 gtk_menu_item_ensure_label (menu_item);
2568 child = gtk_bin_get_child (GTK_BIN (menu_item));
2569 if (GTK_IS_LABEL (child))
2571 gtk_label_set_use_underline (GTK_LABEL (child), setting);
2573 g_object_notify (G_OBJECT (menu_item), "use-underline");
2578 * gtk_menu_item_get_use_underline:
2579 * @menu_item: a #GtkMenuItem
2581 * Checks if an underline in the text indicates the next character
2582 * should be used for the mnemonic accelerator key.
2584 * Return value: %TRUE if an embedded underline in the label
2585 * indicates the mnemonic accelerator key.
2590 gtk_menu_item_get_use_underline (GtkMenuItem *menu_item)
2594 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
2596 gtk_menu_item_ensure_label (menu_item);
2598 child = gtk_bin_get_child (GTK_BIN (menu_item));
2599 if (GTK_IS_LABEL (child))
2600 return gtk_label_get_use_underline (GTK_LABEL (child));
2606 * gtk_menu_item_set_reserve_indicator:
2607 * @menu_item: a #GtkMenuItem
2608 * @reserve: the new value
2610 * Sets whether the @menu_item should reserve space for
2611 * the submenu indicator, regardless if it actually has
2614 * There should be little need for applications to call
2620 gtk_menu_item_set_reserve_indicator (GtkMenuItem *menu_item,
2623 GtkMenuItemPrivate *priv;
2625 g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
2627 priv = menu_item->priv;
2629 if (priv->reserve_indicator != reserve)
2631 priv->reserve_indicator = reserve;
2632 gtk_widget_queue_resize (GTK_WIDGET (menu_item));
2637 * gtk_menu_item_get_reserve_indicator:
2638 * @menu_item: a #GtkMenuItem
2640 * Returns whether the @menu_item reserves space for
2641 * the submenu indicator, regardless if it has a submenu
2644 * Returns: %TRUE if @menu_item always reserves space for the
2650 gtk_menu_item_get_reserve_indicator (GtkMenuItem *menu_item)
2652 g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
2654 return menu_item->priv->reserve_indicator;