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//
// $Id$
//
//---------------------------------------------------------------
//
// G4RichTrajectoryPoint.hh
//
// class description:
//   This class extends G4TrajectoryPoint.
//   From G4Trajectory, the following information is included:
//     1) Position (end of step).
//   The extended information, only publicly accessible through AttValues,
//   includes:
//     2) Auxiliary points, as in G4SmoothTrajectory.
//     3) Total energy deposit.
//     4) Remaining energy.
//     5) Process defining end of step.
//     6) Global time (from start of event) at pre- amd post-step.
//   ...and more.
//
// Contact:
//   Questions and comments to this code 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 G4RICHTRAJECTORYPOINT_HH
#define G4RICHTRAJECTORYPOINT_HH

#include <vector>

#include "trkgdefs.hh"
#include "G4TrajectoryPoint.hh"
#include "G4TouchableHandle.hh"
#include "G4ThreeVector.hh"
#include "G4StepStatus.hh"

class G4Track;
class G4Step;
class G4VProcess;

class G4RichTrajectoryPoint : public G4TrajectoryPoint
{

public: // without description

  // Constructor/Destructor
  G4RichTrajectoryPoint();
  G4RichTrajectoryPoint(const G4Track*);  // For first point.
  G4RichTrajectoryPoint(const G4Step*);   // For subsequent points.
  G4RichTrajectoryPoint(const G4RichTrajectoryPoint &right);
  virtual ~G4RichTrajectoryPoint();

private:
  G4RichTrajectoryPoint& operator= (const G4RichTrajectoryPoint&);

public:

  // Get/Set functions
  const std::vector<G4ThreeVector>* GetAuxiliaryPoints() const
   { return fpAuxiliaryPointVector; }

  // Operators
  inline void *operator new(size_t);
  inline void operator delete(void *aRichTrajectoryPoint);
  inline int operator==(const G4RichTrajectoryPoint& right) const
  { return (this==&right); }

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

private:

  // Extended member data
  std::vector<G4ThreeVector>* fpAuxiliaryPointVector;
  G4double fTotEDep;
  G4double fRemainingEnergy;
  const G4VProcess* fpProcess;
  G4StepStatus fPreStepPointStatus;
  G4StepStatus fPostStepPointStatus;
  G4double fPreStepPointGlobalTime;
  G4double fPostStepPointGlobalTime;
  G4TouchableHandle fpPreStepPointVolume;
  G4TouchableHandle fpPostStepPointVolume;
  G4double fPreStepPointWeight;
  G4double fPostStepPointWeight;
};

extern G4TRACKING_DLL G4ThreadLocal
G4Allocator<G4RichTrajectoryPoint> *aRichTrajectoryPointAllocator;

inline void* G4RichTrajectoryPoint::operator new(size_t)
{
  if (!aRichTrajectoryPointAllocator)
  { aRichTrajectoryPointAllocator = new G4Allocator<G4RichTrajectoryPoint>; }
  return (void *) aRichTrajectoryPointAllocator->MallocSingle();
}

inline void G4RichTrajectoryPoint::operator delete(void *aRichTrajectoryPoint)
{
  aRichTrajectoryPointAllocator->FreeSingle
    ((G4RichTrajectoryPoint *) aRichTrajectoryPoint);
}

#endif
