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/* This file is part of GEGL
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*
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* GEGL is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* GEGL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2003 Calvin Williamson
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*/
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#ifndef __GEGL_VISITOR_H__
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#define __GEGL_VISITOR_H__
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G_BEGIN_DECLS
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#define GEGL_TYPE_VISITOR (gegl_visitor_get_type ())
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#define GEGL_VISITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_VISITOR, GeglVisitor))
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#define GEGL_VISITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEGL_TYPE_VISITOR, GeglVisitorClass))
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#define GEGL_IS_VISITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_VISITOR))
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#define GEGL_IS_VISITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEGL_TYPE_VISITOR))
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#define GEGL_VISITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEGL_TYPE_VISITOR, GeglVisitorClass))
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typedef struct _GeglVisitorClass GeglVisitorClass;
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struct _GeglVisitor
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{
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GObject parent_instance;
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gpointer context_id;
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GSList *visits_list;
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GHashTable *hash;
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};
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struct _GeglVisitorClass
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{
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GObjectClass parent_class;
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void (* visit_pad) (GeglVisitor *self,
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GeglPad *pad);
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void (* visit_node) (GeglVisitor *self,
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GeglNode *node);
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};
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GType gegl_visitor_get_type (void) G_GNUC_CONST;
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GSList * gegl_visitor_get_visits_list (GeglVisitor *self);
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void gegl_visitor_reset (GeglVisitor *self);
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void gegl_visitor_visit_visitable (GeglVisitor *self,
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GeglVisitable *visitable);
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void gegl_visitor_visit_pad (GeglVisitor *self,
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GeglPad *pad);
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void gegl_visitor_visit_node (GeglVisitor *self,
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GeglNode *node);
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void gegl_visitor_dfs_traverse (GeglVisitor *self,
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GeglVisitable *visitable);
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void gegl_visitor_bfs_traverse (GeglVisitor *self,
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GeglVisitable *visitable);
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G_END_DECLS
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#endif /* __GEGL_VISITOR_H__ */
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