SoViewportRegionElement.h

/*=======================================================================
 * Copyright 1991-1996, Silicon Graphics, Inc.
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 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
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 * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
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 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
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 * GRAPHICS, INC.
**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
 ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
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 ***                                                                                ***
 ***                        RESTRICTED RIGHTS LEGEND                                ***
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 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
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 ***                                                                                ***
 ***                   COPYRIGHT (C) 1996-2014 BY FEI S.A.S,                        ***
 ***                        BORDEAUX, FRANCE                                        ***
 ***                      ALL RIGHTS RESERVED                                       ***
**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_VIEWPORT_REGION_ELEMENT
#define  _SO_VIEWPORT_REGION_ELEMENT
 
#include <Inventor/SbBasic.h>
#include <Inventor/SbViewportRegion.h>
#include <Inventor/elements/SoSubElement.h>

 
SoEXTENDER_Documented class  SoViewportRegionElement : public SoElement {
 
  SO_ELEMENT_HEADER(SoViewportRegionElement);
 
 public:
  static void         set(SoState *state,
                          const SbViewportRegion &vpReg, SbBool sendToGL = TRUE);

  static const SbViewportRegion & get(SoState *state);

  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 SoViewportRegionElement class
  static void         initClass();
  static void         exitClass();
 
 private:
  SbViewportRegion    viewportRegion;
 
  // Sets the region in an instance
  virtual void        setElt(const SbViewportRegion &vpReg, SbBool sendToGL = TRUE);
 
  virtual ~SoViewportRegionElement();
 
 private:
  static SbViewportRegion *emptyViewportRegion;
};
 
#endif /* _SO_VIEWPORT_REGION_ELEMENT */