Explorer.h

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/* $Id: Explorer.h,v 1.2 2002/11/05 14:31:15 anonymous Exp $ */

#ifndef __EXPLORER_H
#define __EXPLORER_H

#include <esg/SceneGraphObject.h>
#include <esg/Transform.h>

#include <stack>
#include <esg/Export>

namespace esg {

class OGSCENE_EXPORT Explorer {
protected:
    std::stack<Matrix4*> _trStack;     // Stored transf. during traversal

protected:
    virtual bool _explore                   (SceneGraphObject&);
    virtual bool _iterate                   (SceneGraphObject&);
    virtual bool _process_leaf              (SceneGraphObject&)  = 0;
    virtual void _accept_new_transformation (const Matrix4&)     = 0;
    
public:
    virtual ~Explorer() {
        while (!_trStack.empty()) { delete _trStack.top(); _trStack.pop(); }
    }
    
    virtual void explore (SceneGraphObject&);
};

}; // namespace

#endif // __EXPLORER_H

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