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//
// Filename : SceneVisitor.h
// Author(s) : Emmanuel Turquin
// Purpose : Class to visit (without doing anything)
// a scene graph structure
// Date of creation : 26/04/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef SCENE_VISITOR_H
# define SCENE_VISITOR_H
# define VISIT_COMPLETE_DEF(type) \
virtual void visit##type(type&) {} \
virtual void visit##type##Before(type&) {} \
virtual void visit##type##After(type&) {}
# define VISIT_DECL(type) virtual void visit##type(type&);
# define VISIT_COMPLETE_DECL(type) \
virtual void visit##type##Before(type&); \
virtual void visit##type(type&); \
virtual void visit##type##After(type&);
#include "../system/FreestyleConfig.h"
class Node;
class NodeShape;
class NodeGroup;
class NodeLight;
class NodeCamera;
class NodeDrawingStyle;
class NodeTransform;
class Rep;
class LineRep;
class OrientedLineRep;
class TriangleRep;
class VertexRep;
class IndexedFaceSet;
class DrawingStyle;
class Material;
class LIB_SCENE_GRAPH_EXPORT SceneVisitor
{
public:
SceneVisitor() {}
virtual ~SceneVisitor() {}
virtual void beginScene() {}
virtual void endScene() {}
//
// visitClass methods
//
//////////////////////////////////////////////
VISIT_COMPLETE_DEF(Node)
VISIT_COMPLETE_DEF(NodeShape)
VISIT_COMPLETE_DEF(NodeGroup)
VISIT_COMPLETE_DEF(NodeLight)
VISIT_COMPLETE_DEF(NodeCamera)
VISIT_COMPLETE_DEF(NodeDrawingStyle)
VISIT_COMPLETE_DEF(NodeTransform)
VISIT_COMPLETE_DEF(Rep)
VISIT_COMPLETE_DEF(LineRep)
VISIT_COMPLETE_DEF(OrientedLineRep)
VISIT_COMPLETE_DEF(TriangleRep)
VISIT_COMPLETE_DEF(VertexRep)
VISIT_COMPLETE_DEF(IndexedFaceSet)
VISIT_COMPLETE_DEF(DrawingStyle)
VISIT_COMPLETE_DEF(Material)
};
#endif // SCENEVISITOR_H
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