G4XXXSGSceneHandler.hh

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// $Id$
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// 
// 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 G4XXXSGSCENEHANDLER_HH
#define G4XXXSGSCENEHANDLER_HH
 
#include "G4VSceneHandler.hh"
 
#include "G4PhysicalVolumeModel.hh"
#include <iostream>
 
namespace JA {
  // Ad hoc tree class and utilities.
  
  typedef G4PhysicalVolumeModel::G4PhysicalVolumeNodeID PVNodeID;
  typedef std::vector<PVNodeID> PVPath;
 
  struct Node {
    Node(PVNodeID pvNodeID = PVNodeID(), G4int index = -1):
      fPVNodeID(pvNodeID), fIndex(index) {}
    PVNodeID fPVNodeID;
    G4int fIndex;
    std::vector<Node*> fDaughters;
  };
 
  void Insert(const PVNodeID* pvPath, size_t pathLength,
          G4int index, Node* node);
 
  void PrintTree(std::ostream&, Node*);
 
  void Clear(Node*);
}
 
typedef JA::Node SceneGraph;
 
class G4XXXSGSceneHandler: public G4VSceneHandler {
 
  friend class G4XXXSGViewer;
 
public:
  G4XXXSGSceneHandler(G4VGraphicsSystem& system,
            const G4String& name);
  virtual ~G4XXXSGSceneHandler();
 
  ////////////////////////////////////////////////////////////////
  // Optional virtual functions...
  void AddSolid(const G4Box&);
  // Further optional AddSolid functions.  Explicitly invoke base
  // class methods if not otherwise defined to avoid warnings about
  // hiding of base class methods.
  void AddSolid(const G4Cons& cons)
  {G4VSceneHandler::AddSolid(cons);}
  void AddSolid(const G4Tubs& tubs)
  {G4VSceneHandler::AddSolid(tubs);}
  void AddSolid(const G4Trd& trd)
  {G4VSceneHandler::AddSolid(trd);}
  void AddSolid(const G4Trap& trap)
  {G4VSceneHandler::AddSolid(trap);}
  void AddSolid(const G4Sphere& sphere)
  {G4VSceneHandler::AddSolid(sphere);}
  void AddSolid(const G4Para& para)
  {G4VSceneHandler::AddSolid(para);}
  void AddSolid(const G4Torus& torus)
  {G4VSceneHandler::AddSolid(torus);}
  void AddSolid(const G4Polycone& polycone)
  {G4VSceneHandler::AddSolid(polycone);}
  void AddSolid(const G4Polyhedra& polyhedra)
  {G4VSceneHandler::AddSolid(polyhedra);}
  void AddSolid(const G4VSolid& solid)
  {G4VSceneHandler::AddSolid(solid);}
  // More optional functions...
  // void AddCompound(const G4VTrajectory&);
  // void AddCompound(const G4VHit&);
  // void AddCompound(const G4THitsMap<G4double>&);
  void PreAddSolid(const G4Transform3D& objectTransformation,
           const G4VisAttributes&);
  void PostAddSolid();
 
  ////////////////////////////////////////////////////////////////
  // Required implementation of pure virtual functions...
 
  void AddPrimitive(const G4Polyline&);
  void AddPrimitive(const G4Text&);
  void AddPrimitive(const G4Circle&);
  void AddPrimitive(const G4Square&);
  void AddPrimitive(const G4Polyhedron&);
  void AddPrimitive(const G4NURBS&);
  // Further optional AddPrimitive methods.  Explicitly invoke base
  // class methods if not otherwise defined to avoid warnings about
  // hiding of base class methods.
  void AddPrimitive(const G4Polymarker& polymarker)
  {G4VSceneHandler::AddPrimitive (polymarker);}
  void AddPrimitive(const G4Scale& scale)
  {G4VSceneHandler::AddPrimitive (scale);}
  // Further related optional virtual functions...
  void BeginPrimitives(const G4Transform3D& objectTransformation);
  void EndPrimitives();
 
  ////////////////////////////////////////////////////////////////
  // Further optional virtual functions...
 
  // void BeginModeling();
  // void EndModeling();
 
  //////////////////////////////////////////////////////////////
  // Administration functions.
 
  void ClearStore ();
  void ClearTransientStore ();
 
protected:
 
  static G4int fSceneIdCount;  // Counter for XXXSG scene handlers.
 
  // Utility for PreAddSolid and BeginPrimitives.
  void CreateCurrentItem(const G4String&);
 
  //?? Define the scene graph.  (For emulation, use an ad hoc tree class.)
  SceneGraph fSceneGraph;
 
private:
 
#ifdef G4XXXFileDEBUG
  void PrintThings();
#endif
 
};
 
#endif