forked from AuroraMiddleware/gtk
141af56c43
2008-08-07 Michael Natterer <mitch@imendio.com> Bug 546756 – gnome-panel crashed with SIGSEGV in g_type_check_instance_cast() * gtk/gtkimagemenuitem.c: add GtkObject::destroy() implementation and remove the image now that it's an internal child and isn't destroyed by gtk_container_destroy() any longer. Thanks to tml for helping bisecting this down. svn path=/trunk/; revision=21034
640 lines
20 KiB
C
640 lines
20 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2001 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkimagemenuitem.h"
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#include "gtkaccellabel.h"
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#include "gtkintl.h"
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#include "gtkstock.h"
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#include "gtkiconfactory.h"
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#include "gtkimage.h"
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#include "gtkmenubar.h"
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#include "gtkcontainer.h"
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#include "gtkwindow.h"
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#include "gtkprivate.h"
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#include "gtkalias.h"
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static void gtk_image_menu_item_destroy (GtkObject *object);
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static void gtk_image_menu_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_image_menu_item_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_image_menu_item_remove (GtkContainer *container,
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GtkWidget *child);
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static void gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
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gint *requisition);
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static void gtk_image_menu_item_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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static void gtk_image_menu_item_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_image_menu_item_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_image_menu_item_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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enum {
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PROP_0,
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PROP_IMAGE
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};
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G_DEFINE_TYPE (GtkImageMenuItem, gtk_image_menu_item, GTK_TYPE_MENU_ITEM)
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static void
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gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass)
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{
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GObjectClass *gobject_class = (GObjectClass*) klass;
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GtkObjectClass *object_class = (GtkObjectClass*) klass;
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GtkWidgetClass *widget_class = (GtkWidgetClass*) klass;
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GtkMenuItemClass *menu_item_class = (GtkMenuItemClass*) klass;
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GtkContainerClass *container_class = (GtkContainerClass*) klass;
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object_class->destroy = gtk_image_menu_item_destroy;
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widget_class->screen_changed = gtk_image_menu_item_screen_changed;
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widget_class->size_request = gtk_image_menu_item_size_request;
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widget_class->size_allocate = gtk_image_menu_item_size_allocate;
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container_class->forall = gtk_image_menu_item_forall;
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container_class->remove = gtk_image_menu_item_remove;
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menu_item_class->toggle_size_request = gtk_image_menu_item_toggle_size_request;
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gobject_class->set_property = gtk_image_menu_item_set_property;
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gobject_class->get_property = gtk_image_menu_item_get_property;
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g_object_class_install_property (gobject_class,
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PROP_IMAGE,
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g_param_spec_object ("image",
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P_("Image widget"),
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P_("Child widget to appear next to the menu text"),
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GTK_TYPE_WIDGET,
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GTK_PARAM_READWRITE));
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gtk_settings_install_property (g_param_spec_boolean ("gtk-menu-images",
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P_("Show menu images"),
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P_("Whether images should be shown in menus"),
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TRUE,
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GTK_PARAM_READWRITE));
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}
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static void
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gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item)
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{
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image_menu_item->image = NULL;
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}
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static void
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gtk_image_menu_item_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
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switch (prop_id)
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{
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case PROP_IMAGE:
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{
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GtkWidget *image;
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image = (GtkWidget*) g_value_get_object (value);
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gtk_image_menu_item_set_image (image_menu_item, image);
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}
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_image_menu_item_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
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switch (prop_id)
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{
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case PROP_IMAGE:
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g_value_set_object (value,
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(GObject*) image_menu_item->image);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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show_image (GtkImageMenuItem *image_menu_item)
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{
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GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (image_menu_item));
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gboolean show;
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g_object_get (settings, "gtk-menu-images", &show, NULL);
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return show;
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}
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static void
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gtk_image_menu_item_destroy (GtkObject *object)
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{
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GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
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if (image_menu_item->image)
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gtk_container_remove (GTK_CONTAINER (image_menu_item),
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image_menu_item->image);
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GTK_OBJECT_CLASS (gtk_image_menu_item_parent_class)->destroy (object);
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}
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static void
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gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
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gint *requisition)
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{
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GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (menu_item);
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GtkPackDirection pack_dir;
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if (GTK_IS_MENU_BAR (GTK_WIDGET (menu_item)->parent))
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pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (GTK_WIDGET (menu_item)->parent));
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else
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pack_dir = GTK_PACK_DIRECTION_LTR;
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*requisition = 0;
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if (image_menu_item->image && show_image (image_menu_item))
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{
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GtkRequisition image_requisition;
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guint toggle_spacing;
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gtk_widget_get_child_requisition (image_menu_item->image,
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&image_requisition);
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gtk_widget_style_get (GTK_WIDGET (menu_item),
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"toggle-spacing", &toggle_spacing,
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NULL);
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if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
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{
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if (image_requisition.width > 0)
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*requisition = image_requisition.width + toggle_spacing;
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}
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else
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{
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if (image_requisition.height > 0)
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*requisition = image_requisition.height + toggle_spacing;
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}
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}
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}
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static void
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gtk_image_menu_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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GtkImageMenuItem *image_menu_item;
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gint child_width = 0;
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gint child_height = 0;
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GtkPackDirection pack_dir;
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if (GTK_IS_MENU_BAR (widget->parent))
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pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
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else
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pack_dir = GTK_PACK_DIRECTION_LTR;
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image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
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if (image_menu_item->image &&
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GTK_WIDGET_VISIBLE (image_menu_item->image) &&
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show_image (image_menu_item))
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{
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GtkRequisition child_requisition;
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gtk_widget_size_request (image_menu_item->image,
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&child_requisition);
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child_width = child_requisition.width;
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child_height = child_requisition.height;
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}
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(* GTK_WIDGET_CLASS (gtk_image_menu_item_parent_class)->size_request) (widget, requisition);
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/* not done with height since that happens via the
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* toggle_size_request
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*/
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if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
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requisition->height = MAX (requisition->height, child_height);
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else
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requisition->width = MAX (requisition->width, child_width);
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/* Note that GtkMenuShell always size requests before
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* toggle_size_request, so toggle_size_request will be able to use
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* image_menu_item->image->requisition
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*/
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}
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static void
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gtk_image_menu_item_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkImageMenuItem *image_menu_item;
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GtkPackDirection pack_dir;
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if (GTK_IS_MENU_BAR (widget->parent))
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pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
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else
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pack_dir = GTK_PACK_DIRECTION_LTR;
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image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
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(* GTK_WIDGET_CLASS (gtk_image_menu_item_parent_class)->size_allocate) (widget, allocation);
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if (image_menu_item->image && show_image (image_menu_item))
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{
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gint x, y, offset;
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GtkRequisition child_requisition;
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GtkAllocation child_allocation;
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guint horizontal_padding, toggle_spacing;
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gtk_widget_style_get (widget,
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"horizontal-padding", &horizontal_padding,
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"toggle-spacing", &toggle_spacing,
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NULL);
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/* Man this is lame hardcoding action, but I can't
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* come up with a solution that's really better.
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*/
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gtk_widget_get_child_requisition (image_menu_item->image,
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&child_requisition);
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if (pack_dir == GTK_PACK_DIRECTION_LTR ||
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pack_dir == GTK_PACK_DIRECTION_RTL)
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{
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offset = GTK_CONTAINER (image_menu_item)->border_width +
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widget->style->xthickness;
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if ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) ==
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(pack_dir == GTK_PACK_DIRECTION_LTR))
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x = offset + horizontal_padding +
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(GTK_MENU_ITEM (image_menu_item)->toggle_size -
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toggle_spacing - child_requisition.width) / 2;
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else
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x = widget->allocation.width - offset - horizontal_padding -
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GTK_MENU_ITEM (image_menu_item)->toggle_size + toggle_spacing +
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(GTK_MENU_ITEM (image_menu_item)->toggle_size -
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toggle_spacing - child_requisition.width) / 2;
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y = (widget->allocation.height - child_requisition.height) / 2;
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}
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else
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{
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offset = GTK_CONTAINER (image_menu_item)->border_width +
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widget->style->ythickness;
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if ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) ==
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(pack_dir == GTK_PACK_DIRECTION_TTB))
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y = offset + horizontal_padding +
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(GTK_MENU_ITEM (image_menu_item)->toggle_size -
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toggle_spacing - child_requisition.height) / 2;
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else
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y = widget->allocation.height - offset - horizontal_padding -
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GTK_MENU_ITEM (image_menu_item)->toggle_size + toggle_spacing +
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(GTK_MENU_ITEM (image_menu_item)->toggle_size -
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toggle_spacing - child_requisition.height) / 2;
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x = (widget->allocation.width - child_requisition.width) / 2;
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}
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child_allocation.width = child_requisition.width;
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child_allocation.height = child_requisition.height;
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child_allocation.x = widget->allocation.x + MAX (x, 0);
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child_allocation.y = widget->allocation.y + MAX (y, 0);
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gtk_widget_size_allocate (image_menu_item->image, &child_allocation);
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}
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}
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static void
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gtk_image_menu_item_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data)
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{
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GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (container);
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(* GTK_CONTAINER_CLASS (gtk_image_menu_item_parent_class)->forall) (container,
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include_internals,
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callback,
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callback_data);
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if (include_internals && image_menu_item->image)
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(* callback) (image_menu_item->image, callback_data);
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}
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/**
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* gtk_image_menu_item_new:
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* @returns: a new #GtkImageMenuItem.
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*
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* Creates a new #GtkImageMenuItem with an empty label.
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**/
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GtkWidget*
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gtk_image_menu_item_new (void)
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{
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return g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
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}
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/**
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* gtk_image_menu_item_new_with_label:
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* @label: the text of the menu item.
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* @returns: a new #GtkImageMenuItem.
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*
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* Creates a new #GtkImageMenuItem containing a label.
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**/
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GtkWidget*
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gtk_image_menu_item_new_with_label (const gchar *label)
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{
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GtkImageMenuItem *image_menu_item;
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GtkWidget *accel_label;
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image_menu_item = g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
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accel_label = gtk_accel_label_new (label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (image_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
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GTK_WIDGET (image_menu_item));
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gtk_widget_show (accel_label);
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return GTK_WIDGET(image_menu_item);
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}
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/**
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* gtk_image_menu_item_new_with_mnemonic:
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* @label: the text of the menu item, with an underscore in front of the
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* mnemonic character
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* @returns: a new #GtkImageMenuItem
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*
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* Creates a new #GtkImageMenuItem containing a label. The label
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* will be created using gtk_label_new_with_mnemonic(), so underscores
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* in @label indicate the mnemonic for the menu item.
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**/
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GtkWidget*
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gtk_image_menu_item_new_with_mnemonic (const gchar *label)
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{
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GtkImageMenuItem *image_menu_item;
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GtkWidget *accel_label;
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image_menu_item = g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
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accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
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gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (image_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
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GTK_WIDGET (image_menu_item));
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gtk_widget_show (accel_label);
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return GTK_WIDGET(image_menu_item);
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}
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/**
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* gtk_image_menu_item_new_from_stock:
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* @stock_id: the name of the stock item.
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* @accel_group: the #GtkAccelGroup to add the menu items accelerator to,
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* or %NULL.
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* @returns: a new #GtkImageMenuItem.
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*
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* Creates a new #GtkImageMenuItem containing the image and text from a
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* stock item. Some stock ids have preprocessor macros like #GTK_STOCK_OK
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* and #GTK_STOCK_APPLY.
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*
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* If you want this menu item to have changeable accelerators, then pass in
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* %NULL for accel_group. Next call gtk_menu_item_set_accel_path() with an
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* appropriate path for the menu item, use gtk_stock_lookup() to look up the
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* standard accelerator for the stock item, and if one is found, call
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* gtk_accel_map_add_entry() to register it.
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**/
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GtkWidget*
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gtk_image_menu_item_new_from_stock (const gchar *stock_id,
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GtkAccelGroup *accel_group)
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{
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GtkWidget *image;
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GtkStockItem stock_item;
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GtkWidget *item;
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g_return_val_if_fail (stock_id != NULL, NULL);
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image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_MENU);
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if (gtk_stock_lookup (stock_id, &stock_item))
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{
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item = gtk_image_menu_item_new_with_mnemonic (stock_item.label);
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gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
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if (stock_item.keyval && accel_group)
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gtk_widget_add_accelerator (item,
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"activate",
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accel_group,
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stock_item.keyval,
|
|
stock_item.modifier,
|
|
GTK_ACCEL_VISIBLE);
|
|
}
|
|
else
|
|
{
|
|
item = gtk_image_menu_item_new_with_mnemonic (stock_id);
|
|
|
|
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
|
|
}
|
|
|
|
gtk_widget_show (image);
|
|
return item;
|
|
}
|
|
|
|
/**
|
|
* gtk_image_menu_item_set_image:
|
|
* @image_menu_item: a #GtkImageMenuItem.
|
|
* @image: a widget to set as the image for the menu item.
|
|
*
|
|
* Sets the image of @image_menu_item to the given widget.
|
|
* Note that it depends on the show-menu-images setting whether
|
|
* the image will be displayed or not.
|
|
**/
|
|
void
|
|
gtk_image_menu_item_set_image (GtkImageMenuItem *image_menu_item,
|
|
GtkWidget *image)
|
|
{
|
|
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item));
|
|
|
|
if (image == image_menu_item->image)
|
|
return;
|
|
|
|
if (image_menu_item->image)
|
|
gtk_container_remove (GTK_CONTAINER (image_menu_item),
|
|
image_menu_item->image);
|
|
|
|
image_menu_item->image = image;
|
|
|
|
if (image == NULL)
|
|
return;
|
|
|
|
gtk_widget_set_parent (image, GTK_WIDGET (image_menu_item));
|
|
g_object_set (image,
|
|
"visible", show_image (image_menu_item),
|
|
"no-show-all", TRUE,
|
|
NULL);
|
|
|
|
g_object_notify (G_OBJECT (image_menu_item), "image");
|
|
}
|
|
|
|
/**
|
|
* gtk_image_menu_item_get_image:
|
|
* @image_menu_item: a #GtkImageMenuItem.
|
|
* @returns: the widget set as image of @image_menu_item.
|
|
*
|
|
* Gets the widget that is currently set as the image of @image_menu_item.
|
|
* See gtk_image_menu_item_set_image().
|
|
**/
|
|
GtkWidget*
|
|
gtk_image_menu_item_get_image (GtkImageMenuItem *image_menu_item)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item), NULL);
|
|
|
|
return image_menu_item->image;
|
|
}
|
|
|
|
static void
|
|
gtk_image_menu_item_remove (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
GtkImageMenuItem *image_menu_item;
|
|
|
|
image_menu_item = GTK_IMAGE_MENU_ITEM (container);
|
|
|
|
if (child == image_menu_item->image)
|
|
{
|
|
gboolean widget_was_visible;
|
|
|
|
widget_was_visible = GTK_WIDGET_VISIBLE (child);
|
|
|
|
gtk_widget_unparent (child);
|
|
image_menu_item->image = NULL;
|
|
|
|
if (GTK_WIDGET_VISIBLE (container) && widget_was_visible)
|
|
gtk_widget_queue_resize (GTK_WIDGET (container));
|
|
|
|
g_object_notify (G_OBJECT (image_menu_item), "image");
|
|
}
|
|
else
|
|
{
|
|
(* GTK_CONTAINER_CLASS (gtk_image_menu_item_parent_class)->remove) (container, child);
|
|
}
|
|
}
|
|
|
|
static void
|
|
show_image_change_notify (GtkImageMenuItem *image_menu_item)
|
|
{
|
|
if (image_menu_item->image)
|
|
{
|
|
if (show_image (image_menu_item))
|
|
gtk_widget_show (image_menu_item->image);
|
|
else
|
|
gtk_widget_hide (image_menu_item->image);
|
|
}
|
|
}
|
|
|
|
static void
|
|
traverse_container (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
if (GTK_IS_IMAGE_MENU_ITEM (widget))
|
|
show_image_change_notify (GTK_IMAGE_MENU_ITEM (widget));
|
|
else if (GTK_IS_CONTAINER (widget))
|
|
gtk_container_forall (GTK_CONTAINER (widget), traverse_container, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_image_menu_item_setting_changed (GtkSettings *settings)
|
|
{
|
|
GList *list, *l;
|
|
|
|
list = gtk_window_list_toplevels ();
|
|
|
|
for (l = list; l; l = l->next)
|
|
gtk_container_forall (GTK_CONTAINER (l->data),
|
|
traverse_container, NULL);
|
|
|
|
g_list_free (list);
|
|
}
|
|
|
|
static void
|
|
gtk_image_menu_item_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkSettings *settings;
|
|
guint show_image_connection;
|
|
|
|
if (!gtk_widget_has_screen (widget))
|
|
return;
|
|
|
|
settings = gtk_widget_get_settings (widget);
|
|
|
|
show_image_connection =
|
|
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (settings),
|
|
"gtk-image-menu-item-connection"));
|
|
|
|
if (show_image_connection)
|
|
return;
|
|
|
|
show_image_connection =
|
|
g_signal_connect (settings, "notify::gtk-menu-images",
|
|
G_CALLBACK (gtk_image_menu_item_setting_changed), NULL);
|
|
g_object_set_data (G_OBJECT (settings),
|
|
I_("gtk-image-menu-item-connection"),
|
|
GUINT_TO_POINTER (show_image_connection));
|
|
|
|
show_image_change_notify (GTK_IMAGE_MENU_ITEM (widget));
|
|
}
|
|
|
|
#define __GTK_IMAGE_MENU_ITEM_C__
|
|
#include "gtkaliasdef.c"
|