G4OpenGLSceneHandler.hh

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// Andrew Walkden  27th March 1996
// OpenGL scene handler - base for immediate mode and stored mode classes to
//                        inherit from.
 
#ifndef G4OPENGLSCENEHANDLER_HH
#define G4OPENGLSCENEHANDLER_HH
 
#include "globals.hh"
 
#include "G4VSceneHandler.hh"
#include "G4OpenGL.hh"
 
#include <map>
 
class G4AttHolder;
 
// Base class for various OpenGLSceneHandler classes.
class G4OpenGLSceneHandler: public G4VSceneHandler {
  
  friend class G4OpenGLViewer;
  
public:
  virtual void BeginPrimitives (const G4Transform3D& objectTransformation);
  virtual void EndPrimitives ();
  virtual void BeginPrimitives2D (const G4Transform3D& objectTransformation);
  virtual void EndPrimitives2D ();
  using G4VSceneHandler::AddPrimitive;
  void AddPrimitive (const G4Polyline&);
  void AddPrimitive (const G4Polymarker&);
  void AddPrimitive (const G4Text&);
  void AddPrimitive (const G4Circle&);
  void AddPrimitive (const G4Square&);
  void AddPrimitivesCircle (const std::vector <G4VMarker>&);
  void AddPrimitivesSquare (const std::vector <G4VMarker>&);
  void AddPrimitive (const G4Polyhedron&);
  
  void PreAddSolid (const G4Transform3D& objectTransformation,
                    const G4VisAttributes&);
  void AddSolid (const G4Box&);
  void AddSolid (const G4Cons&);
  void AddSolid (const G4Tubs&);
  void AddSolid (const G4Trd&);
  void AddSolid (const G4Trap&);
  void AddSolid (const G4Sphere&);
  void AddSolid (const G4Para&);
  void AddSolid (const G4Torus&);
  void AddSolid (const G4Polycone&);
  void AddSolid (const G4Polyhedra&);
  void AddSolid (const G4Orb&);
  void AddSolid (const G4Ellipsoid&);
  void AddSolid (const G4TessellatedSolid&);
  void AddSolid (const G4VSolid&);
  void AddCompound (const G4VTrajectory&);
  void AddCompound (const G4VHit&);
  void AddCompound (const G4VDigi&);
  void AddCompound (const G4THitsMap<G4double>&);
  void AddCompound (const G4THitsMap<G4StatDouble>&);
  void AddCompound (const G4Mesh&);
 
  // enum for /vis/ogl/flushAt.
  enum FlushAction {
    endOfEvent,
    endOfRun,
    eachPrimitive,
    NthPrimitive,
    NthEvent,
    never
  };
  static G4int GetEntitiesFlushInterval()
  {return fEntitiesFlushInterval;}
  static FlushAction GetFlushAction()
  {return fFlushAction;}
  static void SetEntitiesFlushInterval(G4int interval)
  {fEntitiesFlushInterval = interval;}
  static void SetFlushAction(FlushAction action)
  {fFlushAction = action;}
 
protected:
  
  G4OpenGLSceneHandler (G4VGraphicsSystem& system,
                        G4int id,
                        const G4String& name = "");
  virtual ~G4OpenGLSceneHandler ();
  
  void ProcessScene();
  G4DisplacedSolid* CreateSectionSolid ();
  G4DisplacedSolid* CreateCutawaySolid ();
  
  void ClearAndDestroyAtts();  // Destroys att holders and clears pick map.
  
  GLuint fPickName;
  std::map<GLuint, G4AttHolder*> fPickMap;  // For picking.
  
  // Shared code to wait until we make a single glFlush
  void ScaledFlush () ;
  // Static so that they apply to all OGL scene handlers...
  static FlushAction fFlushAction;
  // Number of entities between flushes
  static G4int fEntitiesFlushInterval;
 
  // True if caller of primitives is capable of processing three passes.
  G4bool fThreePassCapable;
  
  G4bool fSecondPassForTransparencyRequested;
  G4bool fSecondPassForTransparency;
  
  G4bool fThirdPassForNonHiddenMarkersRequested;
  G4bool fThirdPassForNonHiddenMarkers;
  
  static const GLubyte fStippleMaskHashed [128];
  bool fEdgeFlag;
};
 
#include "G4OpenGLSceneHandler.icc"
 
#endif // G4OPENGLSCENEHANDLER_HH