SoGuiRenderArea.h

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**=======================================================================*/
/*=======================================================================
** Author      : T.MEHAMLI (Jun 2007)
**=======================================================================*/
 
#ifndef SO_GUI_RENDER_AREA_H
#define SO_GUI_RENDER_AREA_H
 
//
//  Class: SoGuiRenderArea
//
// SoXXRenderArea implementation class
//
//
 
#include <Inventor/Gui/SoGuiGLWidget.h>
#include <Inventor/nodes/SoCamera.h> // stereo settings
#include <Inventor/nodes/SoFullSceneAntialiasing.h>
#include <Inventor/SbElapsedTime.h>
#include <Inventor/actions/SoGLRenderAction.h>
 
class SoNode;
class SoFrameGrabber;
class SbThreadSemaphore;
class ScTracking;
class SoSelection;
class SoMPEGRenderer;
 
#ifndef HIDDEN_FROM_DOC
typedef void (*soSelectionChangeCB)(void *, SoSelection* data);
#endif
 
 
class  SoGuiRenderArea : public SoGuiGLWidget
{
#ifndef HIDDEN_FROM_DOC
 SO_FIELDCONTAINER_HEADER( SoGuiRenderArea );
#endif
 
private:
 SoSFVec2i32 position;
 SoSFVec2i32 globalPosition;
 SoSFFieldContainer sceneManager;
 SoSFBool stereoAbsoluteAdjustments;
 SoSFFloat stereoOffset;
 SoSFFloat stereoBalance;
 SoSFBool stereoNearFrac;
 SoSFBool stereoReversed;
 
 SoSFFieldContainer cameraBase;
 
 SoGuiRenderArea();
 SoGuiRenderArea( bool sync );
 
 virtual void setSceneGraph( SoNode* newScene );
 
 virtual SoNode* getSceneGraph();
 
 void setBackgroundColor( const SbColor& c );
 
 SbColor getBackgroundColor() const;
 
 void setBackgroundIndex( int index );
 
 int getBackgroundIndex() const;
 
 void setViewportRegion( const SbViewportRegion& newRegion );
 
 const SbViewportRegion& getViewportRegion() const;
 
 void setTransparencyType( SoGLRenderAction::TransparencyType type );
 
 SoGLRenderAction::TransparencyType getTransparencyType() const;
 
 void setFastEditSavePolicy( SoGLRenderAction::FastEditSavePolicy policy,
                             SbBool fastEditDelayedObjects = FALSE);
 
 SoGLRenderAction::FastEditSavePolicy getFastEditSavePolicy() const;
 
 void setInvalidateCacheMode( SoGLRenderAction::InvalidateCacheMode icm );
 
 SoGLRenderAction::InvalidateCacheMode getInvalidateCacheMode();
  
 void setClearBeforeRender( SbBool trueOrFalse, SbBool zbTrueOrFalse = TRUE );
 
 SbBool isClearBeforeRender() const;
 
 SbBool isClearZBufferBeforeRender() const;
 
 void setAutoRedraw( SbBool trueOrFalse );
 
 SbBool isAutoRedraw() const;
 
 void setRedrawPriority( uint32_t priority );
 
 uint32_t getRedrawPriority() const;
 
 static uint32_t getDefaultRedrawPriority();
 
 
  void setSceneManager( SoSceneManager* sm );
 
 SoSceneManager* getSceneManager() const
 {
   return m_sceneMgr;
 }
 
 void setGLRenderAction( SoGLRenderAction* ra );
 
 SoGLRenderAction* getGLRenderAction() const;
 
 static SbVec2s getDefaultSize();
 
  SbBool invokeAppCB( const SoEvent* anyevent );
 
  virtual void notifyRedraw();
  virtual void signalRedraw();
  virtual void cleanRedraw();
 
  virtual void notify( SoNotList* );
 
  virtual void setMPEGRecorder( SoMPEGRenderer* recorder );
 
  virtual SoMPEGRenderer* getMPEGRecorder() const;
 
  // ----------------------- Extension usage -----------------------------------
 
 void setStereoMode( SoCamera::StereoMode stMode );
 void setStereoElement();
 
 void setRedrawing( SbBool redrawing );
 SbBool isRedrawing() const;
 
 SbBool isInteractive() const;
 
 void setStereoOffset( float offset );
 float getStereoOffset() const;
 
 void setStereoReversed( SbBool reverse );
 SbBool getStereoReversed() const;
 
 void setStereoAbsoluteAdjustments( SbBool absolute );
 SbBool getStereoAbsoluteAdjustments() const;
 
 void setStereoBalance( float balance, SbBool nearFrac = false );
 float getStereoBalance() const;
 SbBool isStereoBalanceNearFrac() const;
 
 virtual void setDoubleBufferRA(SbBool db);
 
 virtual void actualRedraw();
 
 virtual void initGraphic();
 void redrawCleanUp();
 
 void activate();             // connects the sensor
 void deactivate();           // disconnects the sensor
 
 void posChanged( const SbVec2i32& newPos, const SbVec2i32& newGPos );
 
 void setFrameGrabber( SoFrameGrabber* grabber );
 SoFrameGrabber* getFrameGrabber() const;
 
  //static void asyncPaintSensorCB( void *data, SoSensor * );
 
  //SoOneShotSensor *m_asyncPaintSensor;
 
  // called at the begining of redraw call
  void preRedraw();
 
  // called at the end of redraw call
  virtual void postRedraw();
 
  // call when selection changed
  void redrawOnSelectionChange( SoSelection* s );
 
 
  // setup system dependent renderArea handles.
  void setRenderAreaHandle(const void *renderAreaHandle, soSelectionChangeCB _selectionChangedCB);
  void *m_renderAreaHandle;
  soSelectionChangeCB selectionChangeCB;
 
  inline SoFrameGrabber* getGrabber() const;
 
  unsigned int getFPSCount();
 
private:
 
  virtual ~SoGuiRenderArea();
 
  int m_interactiveCount;
  unsigned int m_fpsCount;
  SbElapsedTime m_fpsTimer;
  double m_previousfpsTime;
  bool m_usefpsCallback;
 
  // MPEG recording
  SoMPEGRenderer* m_mpegRenderer;
 
// ----------------------- Private usage -------------------------------------
private:
  void commonConstructor();
 
  // these make rendering/redrawing happen
  SoSceneManager* m_sceneMgr;      // this manages rendering and events
  SbBool m_autoRedraw;     // if TRUE, then we automatically redraw
  SbBool m_clearFirst;  // call clear() before rendering
  SbBool m_clearZBufferFirst;      // clear ZBuffer before rendering
  SbBool m_isRedrawing;
  SoFrameGrabber* m_grabber;
  ScTracking* m_tracking;
  SoCamera* m_cameraBase;
 
  SoSelection* selection;
 
  // Floating point rendering
  SbBool m_isFloatingPointRendering;
  FloatColorBufferSize m_floatingPointRenderingPrecision;
 
  // stereo adjustment
  SoCamera::StereoMode m_stereoMode;
 
  SbThreadSemaphore* m_redrawSem;
};
 
SoFrameGrabber* SoGuiRenderArea::getGrabber() const
{
  return m_grabber;
}
 
inline unsigned int
SoGuiRenderArea::getFPSCount()
{
  return m_fpsCount;
}
 
#endif // SO_GUI_RENDER_AREA_H