GLDepthBufferElement.h

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#ifndef SMALLCHANGE_GLDEPTHBUFFERELEMENT_H
#define SMALLCHANGE_GLDEPTHBUFFERELEMENT_H

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 * this software without specific prior written permission.
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#include <Inventor/elements/SoElement.h>
#include <Inventor/elements/SoSubElement.h>

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
#include <SoWinLeaveScope.h>
#endif // win

#include <SmallChange/basic.h>


class SMALLCHANGE_DLL_API GLDepthBufferElement : public SoElement {
  typedef SoElement inherited;

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

public:
  enum Func {
    NEVER,
    ALWAYS,
    LESS,
    LEQUAL,
    EQUAL,
    GEQUAL,
    GREATER,
    NOTEQUAL
  };

  static void set(SoState * state, const Func func, const SbBool enable);
  virtual void init(SoState * state);
  virtual void push(SoState * state);
  virtual void pop(SoState * state,
                   const SoElement * prevTopElement);

  virtual SbBool matches(const SoElement * element) const;
  virtual SoElement * copyMatchInfo(void) const;

private:
  void updategl(void) const;
  SbBool enable;
  Func func;
};

#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
#include <SoWinEnterScope.h>
#endif

#endif // !SMALLCHANGE_GLDEPTHBUFFERELEMENT_H