#ifndef COIN_SOGLMODELMATRIXELEMENT_H
#define COIN_SOGLMODELMATRIXELEMENT_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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 * modification, are permitted provided that the following conditions are
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 * this software without specific prior written permission.
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\**************************************************************************/

#include <Inventor/elements/SoModelMatrixElement.h>

class COIN_DLL_API SoGLModelMatrixElement : public SoModelMatrixElement {
  typedef SoModelMatrixElement inherited;

  SO_ELEMENT_HEADER(SoGLModelMatrixElement);
public:
  static void initClass(void);
protected:
  virtual ~SoGLModelMatrixElement();

public:
  virtual void init(SoState * state);

  virtual void push(SoState * state);
  virtual void pop(SoState * state,
                   const SoElement * prevTopElement);

protected:
  virtual void makeEltIdentity();
  virtual void setElt(const SbMatrix & matrix);
  virtual void multElt(const SbMatrix & matrix);

  virtual void translateEltBy(const SbVec3f & translation);
  virtual void rotateEltBy(const SbRotation & translation);
  virtual void scaleEltBy(const SbVec3f & scaleFactor);
  virtual SbMatrix pushMatrixElt();
  virtual void popMatrixElt(const SbMatrix & matrix);

private:
  SoState * state;
  SbUniqueId viewEltNodeId;
  SbBool stackoverflow;
};

#endif // !COIN_SOGLMODELMATRIXELEMENT_H