gtk2/modules/other/gail/gailradiobutton.c
Christian Persch a8e6ee33b1 Integrate gail into gtk+. Bug #169488.
* configure.in:
	* docs/reference/Makefile.am:
	* docs/reference/libgail-util/*:
	* gail-uninstalled.pc.in:
	* gail.pc.in:
	* modules/Makefile.am:
	* modules/other/Makefile.am:
	* modules/other/gail/*:
	* modules/other/gail/libgail-util/*:
	* po/POTFILES.skip: Integrate gail into gtk+. Bug #169488.

svn path=/trunk/; revision=19196
2007-12-18 13:51:12 +00:00

165 lines
4.4 KiB
C

/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2001 Sun Microsystems 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.
*/
#include <gtk/gtk.h>
#include "gailradiobutton.h"
static void gail_radio_button_class_init (GailRadioButtonClass *klass);
static void gail_radio_button_instance_init (GailRadioButton *radio_button);
static AtkRelationSet* gail_radio_button_ref_relation_set (AtkObject *obj)
;
static GailToggleButtonClass *parent_class = NULL;
GType
gail_radio_button_get_type (void)
{
static GType type = 0;
if (!type)
{
static const GTypeInfo tinfo =
{
sizeof (GailRadioButtonClass),
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) gail_radio_button_class_init, /* class init */
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
sizeof (GailRadioButton), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) gail_radio_button_instance_init, /* instance init */
NULL /* value table */
};
type = g_type_register_static (GAIL_TYPE_TOGGLE_BUTTON,
"GailRadioButton", &tinfo, 0);
}
return type;
}
static void
gail_radio_button_class_init (GailRadioButtonClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
class->ref_relation_set = gail_radio_button_ref_relation_set;
}
AtkObject*
gail_radio_button_new (GtkWidget *widget)
{
GObject *object;
AtkObject *accessible;
g_return_val_if_fail (GTK_IS_RADIO_BUTTON (widget), NULL);
object = g_object_new (GAIL_TYPE_RADIO_BUTTON, NULL);
accessible = ATK_OBJECT (object);
atk_object_initialize (accessible, widget);
accessible->role = ATK_ROLE_RADIO_BUTTON;
return accessible;
}
static void
gail_radio_button_instance_init (GailRadioButton *radio_button)
{
radio_button->old_group = NULL;
}
AtkRelationSet*
gail_radio_button_ref_relation_set (AtkObject *obj)
{
GtkWidget *widget;
AtkRelationSet *relation_set;
GSList *list;
GailRadioButton *radio_button;
g_return_val_if_fail (GAIL_IS_RADIO_BUTTON (obj), NULL);
widget = GTK_ACCESSIBLE (obj)->widget;
if (widget == NULL)
{
/*
* State is defunct
*/
return NULL;
}
radio_button = GAIL_RADIO_BUTTON (obj);
relation_set = ATK_OBJECT_CLASS (parent_class)->ref_relation_set (obj);
/*
* If the radio button'group has changed remove the relation
*/
list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget));
if (radio_button->old_group != list)
{
AtkRelation *relation;
relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_MEMBER_OF);
atk_relation_set_remove (relation_set, relation);
}
if (!atk_relation_set_contains (relation_set, ATK_RELATION_MEMBER_OF))
{
/*
* Get the members of the button group
*/
radio_button->old_group = list;
if (list)
{
AtkObject **accessible_array;
guint list_length;
AtkRelation* relation;
gint i = 0;
list_length = g_slist_length (list);
accessible_array = (AtkObject**) g_malloc (sizeof (AtkObject *) *
list_length);
while (list != NULL)
{
GtkWidget* list_item = list->data;
accessible_array[i++] = gtk_widget_get_accessible (list_item);
list = list->next;
}
relation = atk_relation_new (accessible_array, list_length,
ATK_RELATION_MEMBER_OF);
g_free (accessible_array);
atk_relation_set_add (relation_set, relation);
/*
* Unref the relation so that it is not leaked.
*/
g_object_unref (relation);
}
}
return relation_set;
}