f48ad7c0cc
2004-06-03 Michael Natterer <mitch@gimp.org> * gtk/gtkimagemenuitem.c: use gtk_widget_get_child_requisition() instead of accessing item->image->allocation.width/height directly. Makes widgets which only have a requisition set using gtk_widget_set_size_request() work and fixes bug #142789.
594 lines
18 KiB
C
594 lines
18 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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typedef struct _GtkImageMenuItemPrivate GtkImageMenuItemPrivate;
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struct _GtkImageMenuItemPrivate
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{
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GtkSettings *settings;
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guint show_image_connection;
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};
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#define GTK_IMAGE_MENU_ITEM_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_IMAGE_MENU_ITEM, GtkImageMenuItemPrivate))
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static void gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass);
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static void gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item);
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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_ZERO,
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PROP_IMAGE
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};
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static GtkMenuItemClass *parent_class = NULL;
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GType
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gtk_image_menu_item_get_type (void)
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{
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static GType image_menu_item_type = 0;
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if (!image_menu_item_type)
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{
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static const GTypeInfo image_menu_item_info =
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{
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sizeof (GtkImageMenuItemClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_image_menu_item_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkImageMenuItem),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_image_menu_item_init,
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};
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image_menu_item_type =
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g_type_register_static (GTK_TYPE_MENU_ITEM, "GtkImageMenuItem",
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&image_menu_item_info, 0);
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}
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return image_menu_item_type;
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}
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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;
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GtkWidgetClass *widget_class;
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GtkMenuItemClass *menu_item_class;
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GtkContainerClass *container_class;
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gobject_class = (GObjectClass*) klass;
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widget_class = (GtkWidgetClass*) klass;
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menu_item_class = (GtkMenuItemClass*) klass;
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container_class = (GtkContainerClass*) klass;
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parent_class = g_type_class_peek_parent (klass);
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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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G_PARAM_READABLE | G_PARAM_WRITABLE));
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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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G_PARAM_READWRITE));
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g_type_class_add_private (gobject_class, sizeof (GtkImageMenuItemPrivate));
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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_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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*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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gtk_widget_get_child_requisition (image_menu_item->image,
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&image_requisition);
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if (image_requisition.width > 0)
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{
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guint toggle_spacing;
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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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*requisition = image_requisition.width + 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_height = 0;
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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_height = child_requisition.height;
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}
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(* GTK_WIDGET_CLASS (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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requisition->height = MAX (requisition->height, child_height);
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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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image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
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(* GTK_WIDGET_CLASS (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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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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{
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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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}
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else
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{
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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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}
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y = (widget->allocation.height - child_requisition.height) / 2;
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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 (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 (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,
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stock_item.modifier,
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GTK_ACCEL_VISIBLE);
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}
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else
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{
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item = gtk_image_menu_item_new_with_mnemonic (stock_id);
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gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
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}
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gtk_widget_show (image);
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return item;
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}
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/**
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* gtk_image_menu_item_set_image:
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* @image_menu_item: a #GtkImageMenuItem.
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* @image: a widget to set as the image for the menu item.
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*
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* Sets the image of @image_menu_item to the given widget.
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**/
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void
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gtk_image_menu_item_set_image (GtkImageMenuItem *image_menu_item,
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GtkWidget *image)
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{
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g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item));
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if (image == image_menu_item->image)
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return;
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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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image_menu_item->image = image;
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if (image == NULL)
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return;
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gtk_widget_set_parent (image, GTK_WIDGET (image_menu_item));
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g_object_set (image,
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"visible", show_image (image_menu_item),
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"no_show_all", TRUE,
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|
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 (parent_class)->remove) (container, child);
|
|
}
|
|
}
|
|
|
|
static void
|
|
show_image_change_notify (GtkImageMenuItem *image_menu_item)
|
|
{
|
|
if (image_menu_item->image)
|
|
g_object_set (image_menu_item->image, "visible", show_image (image_menu_item), NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_image_menu_item_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkImageMenuItemPrivate *priv = GTK_IMAGE_MENU_ITEM_GET_PRIVATE (widget);
|
|
GtkSettings *settings;
|
|
|
|
if (gtk_widget_has_screen (widget))
|
|
settings = gtk_widget_get_settings (widget);
|
|
else
|
|
settings = NULL;
|
|
|
|
if (settings == priv->settings)
|
|
return;
|
|
|
|
if (priv->settings)
|
|
{
|
|
g_signal_handler_disconnect (priv->settings, priv->show_image_connection);
|
|
g_object_unref (priv->settings);
|
|
}
|
|
|
|
if (settings)
|
|
{
|
|
priv->show_image_connection =
|
|
g_signal_connect_swapped (settings,
|
|
"notify::gtk-menu-images",
|
|
G_CALLBACK (show_image_change_notify),
|
|
widget);
|
|
|
|
g_object_ref (settings);
|
|
priv->settings = settings;
|
|
}
|
|
else
|
|
priv->settings = NULL;
|
|
|
|
show_image_change_notify (GTK_IMAGE_MENU_ITEM (widget));
|
|
}
|