/* This file is part of GEGL

 *

 * GEGL 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 3 of the License, or (at your option) any later version.

 *

 * GEGL 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 GEGL; if not, see <http://www.gnu.org/licenses/>.

 *

 * Copyright 2003 Calvin Williamson

 */

#include "config.h"

#include <string.h>

#include <glib-object.h>

#include "gegl-types-internal.h"

#include "gegl-visitable.h"

GType

gegl_visitable_get_type (void)

{

  static GType type = 0;

  if (!type)

    {

      static const GTypeInfo type_info =

      {

        sizeof (GeglVisitableClass),

        (GBaseInitFunc) NULL,

        (GBaseFinalizeFunc) NULL,

        (GClassInitFunc) NULL,

        (GClassFinalizeFunc) NULL,

        NULL,

        0,

        0,

        (GInstanceInitFunc) NULL,

        NULL,

      };

      type = g_type_register_static (G_TYPE_INTERFACE, "GeglVisitable",

                                     &type_info, 0);

      g_type_interface_add_prerequisite (type, G_TYPE_OBJECT);

    }

  return type;

}

void

gegl_visitable_accept (GeglVisitable *interface,

                       GeglVisitor   *visitor)

{

  GeglVisitableClass *interface_class;

  g_return_if_fail (GEGL_IS_VISITABLE (interface));

  interface_class = GEGL_VISITABLE_GET_CLASS (interface);

  interface_class->accept (interface, visitor);

}

GSList *

gegl_visitable_depends_on (GeglVisitable *interface)

{

  GeglVisitableClass *interface_class;

  GSList             *depends_on = NULL;

  interface_class = GEGL_VISITABLE_GET_CLASS (interface);

  depends_on = interface_class->depends_on (interface);

  return depends_on;

}