gtk2/gtk/gtkimagemenuitem.c
Alexander Larsson e7d4a7f90d Document expose event->region change and that gtk_widget_event doesn't
2001-03-09  Alexander Larsson  <alexl@redhat.com>

	* docs/Changes-2.0.txt:
	Document expose event->region change and that gtk_widget_event
	doesn't allow passing expose events.

	* gdk/gdkevents.h:
	Add region to expose event.

	* gdk/gdkevents.c:
	Handle event->region in gdk_event_copy() and gdk_event_free().

	* gdk/gdkwindow.c (gdk_window_process_updates_internal):
	Generate expose_event->region when creating expose events.

	* gdk/x11/gdkevents-x11.c:
	Generate expose events with regions when translating X events.

	* gtk/gtkcontainer.[ch]:
	Default expose handler that propagates expose events to NO_WINDOW
	children. New function gtk_container_propagate_expose()

	* gtk/gtkwidget.[ch]:
	Moved gtk_widget_event implementation to gtk_widget_event_internal.
	gtk_widget_event calls gtk_widget_event_internal but doesn't allow
	expose events. New function gtk_widget_send_expose() to send expose
	events. New function gtk_widget_region_intersect() to calculate
	window/region intersections.

	* gtk/gtkmain.c (gtk_main_do_event):
	Use gdk_window_begin_paint_region() instead of gdk_window_begin_paint_rect().
	Use gtk_widget_send_expose() to send expose events.

	* gtk/gtkbin.c:
	* gtk/gtkbox.c:
	* gtk/gtkfixed.c:
	* gtk/gtkimagemenuitem.c:
	* gtk/gtklist.c:
	* gtk/gtkpacker.c:
	* gtk/gtktable.c:
	* gtk/gtktree.c:
	Remove expose handler, using the default container implementation
	instead.

	* gtk/gtkbutton.c:
	* gtk/gtkcheckbutton.c:
	* gtk/gtkeventbox.c:
	* gtk/gtkfixed.c:
	* gtk/gtkhandlebox.c:
	* gtk/gtklayout.c:
	* gtk/gtklistitem.c:
	* gtk/gtkmenu.c:
	* gtk/gtkmenubar.c:
	* gtk/gtkmenuitem.c:
	* gtk/gtknotebook.c:
	* gtk/gtkoptionmenu.c:
	* gtk/gtkpaned.c:
	* gtk/gtkscrolledwindow.c:
	* gtk/gtktogglebutton.c:
	* gtk/gtktoolbar.c:
	* gtk/gtktreeitem.c:
	* gtk/gtkviewport.c:
	Chain expose handler to parent class handler. Use
	gtk_container_propagate_expose() to propagate exposes.

	* gtk/gtkclist.c (check_exposures):
	* gtk/gtktext.c (process_exposes):
	Use gtk_widget_send_expose instead of gtk_widget_event.
2001-03-09 13:28:26 +00:00

423 lines
13 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 2001 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gtkimagemenuitem.h"
#include "gtkaccellabel.h"
#include "gtksignal.h"
#include "gtkintl.h"
static void gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass);
static void gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item);
static void gtk_image_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_image_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_image_menu_item_remove (GtkContainer *container,
GtkWidget *child);
static void gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition);
static void gtk_image_menu_item_map (GtkWidget *widget);
static void gtk_image_menu_item_unmap (GtkWidget *widget);
static void gtk_image_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_image_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_image_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
enum {
PROP_ZERO,
PROP_IMAGE
};
static GtkMenuItemClass *parent_class = NULL;
GtkType
gtk_image_menu_item_get_type (void)
{
static GtkType image_menu_item_type = 0;
if (!image_menu_item_type)
{
static const GtkTypeInfo image_menu_item_info =
{
"GtkImageMenuItem",
sizeof (GtkImageMenuItem),
sizeof (GtkImageMenuItemClass),
(GtkClassInitFunc) gtk_image_menu_item_class_init,
(GtkObjectInitFunc) gtk_image_menu_item_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
image_menu_item_type = gtk_type_unique (GTK_TYPE_MENU_ITEM, &image_menu_item_info);
}
return image_menu_item_type;
}
static void
gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkMenuItemClass *menu_item_class;
GtkContainerClass *container_class;
gobject_class = (GObjectClass*) klass;
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
menu_item_class = (GtkMenuItemClass*) klass;
container_class = (GtkContainerClass*) klass;
parent_class = gtk_type_class (GTK_TYPE_MENU_ITEM);
widget_class->size_request = gtk_image_menu_item_size_request;
widget_class->size_allocate = gtk_image_menu_item_size_allocate;
widget_class->map = gtk_image_menu_item_map;
widget_class->unmap = gtk_image_menu_item_unmap;
container_class->forall = gtk_image_menu_item_forall;
container_class->remove = gtk_image_menu_item_remove;
menu_item_class->toggle_size_request = gtk_image_menu_item_toggle_size_request;
gobject_class->set_property = gtk_image_menu_item_set_property;
gobject_class->get_property = gtk_image_menu_item_get_property;
g_object_class_install_property (gobject_class,
PROP_IMAGE,
g_param_spec_object ("image",
_("Image widget"),
_("Child widget to appear next to the menu text"),
GTK_TYPE_WIDGET,
G_PARAM_READABLE | G_PARAM_WRITABLE));
}
static void
gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item)
{
image_menu_item->image = NULL;
}
static void
gtk_image_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
switch (prop_id)
{
case PROP_IMAGE:
{
GtkWidget *child;
child = (GtkWidget*) g_value_get_object (value);
if (child != image_menu_item->image)
{
if (image_menu_item->image)
gtk_container_remove (GTK_CONTAINER (image_menu_item),
image_menu_item->image);
if (child)
{
gtk_image_menu_item_add_image (image_menu_item,
child);
}
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_image_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
switch (prop_id)
{
case PROP_IMAGE:
g_value_set_object (value,
(GObject*) image_menu_item->image);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition)
{
GtkImageMenuItem *image_menu_item;
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (menu_item));
image_menu_item = GTK_IMAGE_MENU_ITEM (menu_item);
if (image_menu_item->image)
*requisition = image_menu_item->image->requisition.width;
else
*requisition = 0;
}
static void
gtk_image_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkImageMenuItem *image_menu_item;
gint child_height = 0;
image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
if (image_menu_item->image && GTK_WIDGET_VISIBLE (image_menu_item->image))
{
GtkRequisition child_requisition;
gtk_widget_size_request (image_menu_item->image,
&child_requisition);
child_height = child_requisition.height;
}
(* GTK_WIDGET_CLASS (parent_class)->size_request) (widget, requisition);
/* not done with height since that happens via the
* toggle_size_request
*/
requisition->height = MAX (requisition->height, child_height);
/* Note that GtkMenuShell always size requests before
* toggle_size_request, so toggle_size_request will be able to use
* image_menu_item->image->requisition
*/
}
static void
gtk_image_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkImageMenuItem *image_menu_item;
image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
(* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
if (image_menu_item->image)
{
gint width, height, x, y;
GtkAllocation child_allocation;
/* Man this is lame hardcoding action, but I can't
* come up with a solution that's really better.
*/
width = image_menu_item->image->requisition.width;
height = image_menu_item->image->requisition.height;
x = (GTK_CONTAINER (image_menu_item)->border_width +
widget->style->xthickness) +
(GTK_MENU_ITEM (image_menu_item)->toggle_size - width) / 2;
y = (widget->allocation.height - height) / 2;
child_allocation.width = width;
child_allocation.height = height;
child_allocation.x = MAX (x, 0);
child_allocation.y = MAX (y, 0);
gtk_widget_size_allocate (image_menu_item->image, &child_allocation);
}
}
static void
gtk_image_menu_item_map (GtkWidget *widget)
{
GtkImageMenuItem *image_menu_item;
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (widget));
image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
(* GTK_WIDGET_CLASS (parent_class)->map) (widget);
if (image_menu_item->image &&
GTK_WIDGET_VISIBLE (image_menu_item->image) &&
!GTK_WIDGET_MAPPED (image_menu_item->image))
gtk_widget_map (image_menu_item->image);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_show (widget->window);
}
static void
gtk_image_menu_item_unmap (GtkWidget *widget)
{
GtkImageMenuItem *image_menu_item;
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (widget));
image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
(* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_hide (widget->window);
if (image_menu_item->image && GTK_WIDGET_MAPPED (image_menu_item->image))
gtk_widget_unmap (image_menu_item->image);
}
static void
gtk_image_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkImageMenuItem *image_menu_item;
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (container));
image_menu_item = GTK_IMAGE_MENU_ITEM (container);
(* GTK_CONTAINER_CLASS (parent_class)->forall) (container,
include_internals,
callback,
callback_data);
if (image_menu_item->image)
(* callback) (image_menu_item->image, callback_data);
}
GtkWidget*
gtk_image_menu_item_new (GtkWidget *widget,
const gchar *label)
{
GtkImageMenuItem *image_menu_item;
GtkWidget *accel_label;
image_menu_item = GTK_IMAGE_MENU_ITEM (g_object_new (GTK_TYPE_IMAGE_MENU_ITEM,
NULL));
accel_label = gtk_accel_label_new (label);
gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (image_menu_item), accel_label);
gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
GTK_WIDGET (image_menu_item));
gtk_widget_show (accel_label);
if (widget)
gtk_image_menu_item_add_image (image_menu_item, widget);
return GTK_WIDGET(image_menu_item);
}
void
gtk_image_menu_item_add_image (GtkImageMenuItem *image_menu_item,
GtkWidget *child)
{
g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item));
g_return_if_fail (image_menu_item->image == NULL);
gtk_widget_set_parent (child, GTK_WIDGET (image_menu_item));
image_menu_item->image = child;
g_object_notify (G_OBJECT (image_menu_item), "image");
if (GTK_WIDGET_REALIZED (child->parent))
gtk_widget_realize (child);
if (GTK_WIDGET_VISIBLE (child->parent) && GTK_WIDGET_VISIBLE (child))
{
if (GTK_WIDGET_MAPPED (child->parent))
gtk_widget_map (child);
gtk_widget_queue_resize (child);
}
}
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);
}
}