SoLogicalViewportElement.h

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**=======================================================================*/
/*=======================================================================
** Author      : Pierre Stefani (MMM yyyy)
**=======================================================================*/
 
#ifndef  _SO_LOGICAL_VIEW_PORT_ELEMENT
#define  _SO_LOGICAL_VIEW_PORT_ELEMENT
 
#include <Inventor/SbViewportRegion.h>
#include <Inventor/elements/SoSubElement.h>
 
SoEXTENDER_Documented class  SoLogicalViewportElement : public SoElement {
  
  SO_ELEMENT_HEADER(SoLogicalViewportElement);
  
 public:
  static void set(SoState *state, const SbViewportRegion &vp);
  
  static const SbViewportRegion &get(SoState *state);
 
  static SbViewportRegion getDefaultViewport()
    { return SbViewportRegion(SbVec2s(100, 100)); }
 
  static SoLogicalViewportElement *getInstance(const SoState *state, 
                                               SbBool &elemIsSet);
 
  virtual void print(FILE *fp) const;
 
private:
 
  virtual void init(SoState *state);
 
  virtual SbBool matches(const SoElement* elt) const;
 
  virtual SoElement* copyMatchInfo() const;
 
 private:
    // Initializes the SoLogicalViewportElement class
  static void initClass();
  static void exitClass();
  
 private:
 
  virtual ~SoLogicalViewportElement();
 
private:
  SbViewportRegion m_viewport;
  SbBool m_isSet;
};
#endif /* _SO_LOGICAL_VIEW_PORT_ELEMENT */