NodeVisitor.h

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// Copyright © 2008-2024 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _NODEVISITOR_H
#define _NODEVISITOR_H
/*
 * Node visitor using the "double dispatch" model
 * where the nodes call the appropriate Apply* method
 *
 * Start traversal with node->Accept(visitor)!
 */
namespace SceneGraph {
 
    class Billboard;
    class CollisionGeometry;
    class Group;
    class Label3D;
    class LOD;
    class MatrixTransform;
    class Node;
    class StaticGeometry;
    class Tag;
    class Thruster;
 
    class NodeVisitor {
    public:
        virtual ~NodeVisitor() {}
        virtual void ApplyNode(Node &);
        virtual void ApplyGroup(Group &);
        virtual void ApplyStaticGeometry(StaticGeometry &);
        virtual void ApplyLabel(Label3D &);
        virtual void ApplyMatrixTransform(MatrixTransform &);
        virtual void ApplyTag(Tag &);
        virtual void ApplyBillboard(Billboard &);
        virtual void ApplyThruster(Thruster &);
        virtual void ApplyLOD(LOD &);
        virtual void ApplyCollisionGeometry(CollisionGeometry &);
    };
 
} // namespace SceneGraph
#endif