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mutter-performance-source/clutter/cally/cally-factory.h

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/* CALLY - The Clutter Accessibility Implementation Library
*
* Copyright (C) 2008 Igalia, S.L.
*
* Author: Alejandro Piñeiro Iglesias <apinheiro@igalia.com>
*
* Based on gailfactory.h from GAIL
* Copyright 2001, 2002, 2003 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.
*/
#ifndef _CALLY_FACTORY_H__
#define _CALLY_FACTORY_H__
#include <glib-object.h>
#include <atk/atkobject.h>
/**
* CALLY_ACCESSIBLE_FACTORY:
* @type: GType of the accessible which is created by the factory
* @type_as_function: prefix of the accessible object methods
* @opt_create_accessible: method to instantiate the accessibility object
*
* Defines a new #AtkObjectFactory factory to create accessible
* objects of a specific GType. It defines the factory GType and also
* overrides the proper #AtkObjectFactory methods.
*
* It assumes that the accessibility object provides a
* @opt_create_accessible method in order to create the accessibility
* object. It returns a @type GType object.
*
* Since: 1.4
*/
#define CALLY_ACCESSIBLE_FACTORY(type, type_as_function, opt_create_accessible) \
\
static GType \
type_as_function ## _factory_get_accessible_type (void) \
{ \
return type; \
} \
\
static AtkObject* \
type_as_function ## _factory_create_accessible (GObject *obj) \
{ \
ClutterActor *actor; \
AtkObject *accessible; \
\
g_return_val_if_fail (CLUTTER_ACTOR (obj), NULL); \
\
actor = CLUTTER_ACTOR (obj); \
\
accessible = opt_create_accessible (actor); \
\
return accessible; \
} \
\
static void \
type_as_function ## _factory_class_init (AtkObjectFactoryClass *klass) \
{ \
klass->create_accessible = type_as_function ## _factory_create_accessible; \
klass->get_accessible_type = type_as_function ## _factory_get_accessible_type;\
} \
\
static GType \
type_as_function ## _factory_get_type (void) \
{ \
static GType t = 0; \
\
if (!t) \
{ \
char *name; \
static const GTypeInfo tinfo = \
{ \
sizeof (AtkObjectFactoryClass), \
NULL, NULL, (GClassInitFunc) type_as_function ## _factory_class_init, \
NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL \
}; \
\
name = g_strconcat (g_type_name (type), "Factory", NULL); \
t = g_type_register_static ( \
ATK_TYPE_OBJECT_FACTORY, name, &tinfo, 0); \
g_free (name); \
} \
\
return t; \
}
/**
* CALLY_ACTOR_SET_FACTORY:
* @widget_type: GType of the clutter actor
* @type_as_function: prefix of the accessible object methods
*
* Sets the #AtkObjectFactory to be used in order to instantiate
* accessibility objects for the actor which GType is @widget_type.
*
* Since: 1.4
*/
#define CALLY_ACTOR_SET_FACTORY(widget_type, type_as_function) \
atk_registry_set_factory_type (atk_get_default_registry (), \
widget_type, \
type_as_function ## _factory_get_type ())
#endif /* _CALLY_FACTORY_H__ */