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/* ATK - Accessibility Toolkit
* 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 <glib-object.h>
#include "atkobject.h"
#include "atkrelation.h"
static void atk_relation_class_init (AtkRelationClass *klass);
static void atk_relation_finalize (GObject *object);
GType
atk_relation_get_type (void)
{
static GType type = 0;
if (!type)
{
static const GTypeInfo typeInfo =
{
sizeof (AtkRelationClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) atk_relation_class_init,
(GClassFinalizeFunc) NULL,
NULL,
sizeof (AtkRelation),
0,
(GInstanceInitFunc) NULL,
} ;
type = g_type_register_static (G_TYPE_OBJECT, "AtkRelation", &typeInfo, 0) ;
}
return type;
}
static void
atk_relation_class_init (AtkRelationClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = atk_relation_finalize;
}
/**
*atk_relation_type_register:
*@name: a #gchar name
*
* Associate @name with a new #AtkRelationType
*
*Returns: an #AtkRelationType associated with @name
**/
AtkRelationType
atk_relation_type_register (const gchar *name)
{
/* TODO: associate name with new type */
static guint type = ATK_RELATION_LAST_DEFINED;
return (++type);
}
/**
*atk_relation_new:
*@targets: an array of pointers to #AtkObjects
*@n_targets: number of #AtkObjects pointed to by @targets
*@relationship: an #AtkRelationType with which to create the new
* #AtkRelation
*
* Create a new relation for the specified key and the specified list
* of targets.
*
* Returns: a pointer to a new #AtkRelation
**/
AtkRelation*
atk_relation_new (AtkObject **targets,
gint n_targets,
AtkRelationType relationship)
{
AtkRelation *relation;
int i;
GPtrArray *array;
g_return_val_if_fail (targets != NULL, NULL);
relation = g_object_new (ATK_TYPE_RELATION, NULL);
array = g_ptr_array_sized_new (n_targets);
for (i = 0; i < n_targets; i++)
{
/*
* Add a reference to AtkObject being added to a relation
*/
g_object_ref (targets[i]);
g_ptr_array_add (array, targets[i]);
}
relation->target = array;
relation->relationship = relationship;
return relation;
}
/**
*atk_relation_get_relation_type:
*@relation: an #AtkRelation
*
* Gets the type of @relation
*
*Returns: the type of @relation
**/
AtkRelationType
atk_relation_get_relation_type (AtkRelation *relation)
{
g_return_val_if_fail (relation != NULL, 0);
g_return_val_if_fail (ATK_IS_RELATION (relation), 0);
return relation->relationship;
}
/**
*atk_relation_get_target:
*@relation: an #AtkRelation
*
* Gets the target list of @relation
*
*Returns: the target list of @relation
**/
GPtrArray*
atk_relation_get_target (AtkRelation *relation)
{
g_return_val_if_fail (relation != NULL, FALSE);
g_return_val_if_fail (ATK_IS_RELATION (relation), FALSE);
return relation->target;
}
static void
atk_relation_finalize (GObject *object)
{
AtkRelation *relation;
g_return_if_fail (ATK_IS_RELATION (object));
relation = ATK_RELATION (object);
if (relation->target)
{
gint i;
for (i = 0; i < relation->target->len; i++)
{
/*
* Remove a reference to AtkObject being removed from a relation
*/
g_object_unref (g_ptr_array_index (relation->target, i));
}
g_ptr_array_free (relation->target, TRUE);
}
}
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