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//
// $Id: G4XXXSGViewer.hh,v 1.2 2006-06-29 21:26:58 gunter Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//
// 
// John Allison  10th March 2006
// A template for a sophisticated graphics driver with a scene graph.
//?? Lines beginning like this require specialisation for your driver.

#ifndef G4XXXSGVIEWER_HH
#define G4XXXSGVIEWER_HH

#include "G4VViewer.hh"

class G4XXXSGViewer: public G4VViewer {
public:
  G4XXXSGViewer(G4VSceneHandler&,const G4String& name);
  virtual ~G4XXXSGViewer();
  void SetView();
  void ClearView();
  void DrawView();
  void ShowView();
protected:
  void KernelVisitDecision ();
  G4bool CompareForKernelVisit(G4ViewParameters&);
  void DrawFromStore(const G4String& source);
  G4ViewParameters fLastVP;  // Memory for making kernel visit decisions.
};

#endif