/* 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
*/
#ifndef __GEGL_VISITOR_H__
#define __GEGL_VISITOR_H__
G_BEGIN_DECLS
#define GEGL_TYPE_VISITOR (gegl_visitor_get_type ())
#define GEGL_VISITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_VISITOR, GeglVisitor))
#define GEGL_VISITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEGL_TYPE_VISITOR, GeglVisitorClass))
#define GEGL_IS_VISITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_VISITOR))
#define GEGL_IS_VISITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEGL_TYPE_VISITOR))
#define GEGL_VISITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEGL_TYPE_VISITOR, GeglVisitorClass))
typedef struct _GeglVisitorClass GeglVisitorClass;
struct _GeglVisitor
{
GObject parent_instance;
gpointer context_id;
GSList *visits_list;
GHashTable *hash;
};
struct _GeglVisitorClass
{
GObjectClass parent_class;
void (* visit_pad) (GeglVisitor *self,
GeglPad *pad);
void (* visit_node) (GeglVisitor *self,
GeglNode *node);
};
GType gegl_visitor_get_type (void) G_GNUC_CONST;
GSList * gegl_visitor_get_visits_list (GeglVisitor *self);
void gegl_visitor_reset (GeglVisitor *self);
void gegl_visitor_visit_visitable (GeglVisitor *self,
GeglVisitable *visitable);
void gegl_visitor_visit_pad (GeglVisitor *self,
GeglPad *pad);
void gegl_visitor_visit_node (GeglVisitor *self,
GeglNode *node);
void gegl_visitor_dfs_traverse (GeglVisitor *self,
GeglVisitable *visitable);
void gegl_visitor_bfs_traverse (GeglVisitor *self,
GeglVisitable *visitable);
G_END_DECLS
#endif /* __GEGL_VISITOR_H__ */