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//
//
//---------------------------------------------------------------
//
// G4RichTrajectory.hh
//
// class description:
//   This class extends G4Trajectory, which includes the following:
//     1) List of trajectory points which compose the trajectory,
//     2) static information of particle which generated the 
//        trajectory, 
//     3) trackID and parent particle ID of the trajectory.
//   The extended information, only publicly accessible through AttValues,
//   includes:
//     4) physical volume and next physical volume;
//     5) creator process;
//   ...and much more.
//
// Contact:
//   Questions and comments on G4Trajectory should be sent to
//     Katsuya Amako  (e-mail: Katsuya.Amako@kek.jp)
//     Makoto  Asai   (e-mail: asai@kekvax.kek.jp)
//     Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
//   and on the extended code to:
//     John Allison   (e-mail: John.Allison@manchester.ac.uk)
//     Joseph Perl    (e-mail: perl@slac.stanford.edu)
//
// ---------------------------------------------------------------

#ifndef G4RICHTRAJECTORY_HH
#define G4RICHTRAJECTORY_HH

#include "trkgdefs.hh"
#include "G4Trajectory.hh"
#include "G4TouchableHandle.hh"

typedef std::vector<G4VTrajectoryPoint*>  RichTrajectoryPointsContainer;

class G4RichTrajectory : public G4Trajectory {
  
public: // with description
  
  // Constructors/destructors
  G4RichTrajectory();
  G4RichTrajectory(const G4Track* aTrack);
  G4RichTrajectory(G4RichTrajectory &);
  virtual ~G4RichTrajectory();

private:
  G4RichTrajectory& operator= (const G4RichTrajectory &);

  // Operators
public:
  inline void* operator new(size_t);
  inline void  operator delete(void*);
  inline int operator == (const G4RichTrajectory& right) const
  {return (this==&right);} 
  
  // Other (virtual) member functions
  void ShowTrajectory(std::ostream& os=G4cout) const;
  void DrawTrajectory() const;
  void AppendStep(const G4Step* aStep);
  void MergeTrajectory(G4VTrajectory* secondTrajectory);
  int GetPointEntries() const { return fpRichPointsContainer->size(); }
  G4VTrajectoryPoint* GetPoint(G4int i) const 
   { return (*fpRichPointsContainer)[i]; }

  // Get methods for HepRep style attributes
  virtual const std::map<G4String,G4AttDef>* GetAttDefs() const;
  virtual std::vector<G4AttValue>* CreateAttValues() const;

private:

  // Extended information (only publicly accessible through AttValues)...
  RichTrajectoryPointsContainer* fpRichPointsContainer;
  G4TouchableHandle fpInitialVolume;
  G4TouchableHandle fpInitialNextVolume;
  const G4VProcess* fpCreatorProcess;
  G4int             fCreatorModelID;
  G4TouchableHandle fpFinalVolume;
  G4TouchableHandle fpFinalNextVolume;
  const G4VProcess* fpEndingProcess;
  G4double          fFinalKineticEnergy;

};

extern G4TRACKING_DLL G4Allocator<G4RichTrajectory>*& aRichTrajectoryAllocator();

inline void* G4RichTrajectory::operator new(size_t)
{
  if (!aRichTrajectoryAllocator())
  { aRichTrajectoryAllocator() = new G4Allocator<G4RichTrajectory>; }
  return (void*)aRichTrajectoryAllocator()->MallocSingle();
}

inline void G4RichTrajectory::operator delete(void* aRichTrajectory)
{
  aRichTrajectoryAllocator()->FreeSingle((G4RichTrajectory*)aRichTrajectory);
}

#endif
