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// $Id: G4PSTrackLength.hh,v 1.3 2010/07/22 07:23:45 taso Exp $
// GEANT4 tag $Name:  $
//

#ifndef G4PSTrackLength_h
#define G4PSTrackLength_h 1

#include "G4VPrimitiveScorer.hh"
#include "G4THitsMap.hh"

////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring track length.
// 
//
// Created: 2005-11-14  Tsukasa ASO, Akinori Kimura.
// Modified: 2007-02-02 Tsukasa ASO, Add MultiplyKineticEnergy() 
//                                  and DivideByVelocity(). 
//           2010-07-22   Introduce Unit specification.
//
// 
///////////////////////////////////////////////////////////////////////////////

class G4PSTrackLength : public G4VPrimitiveScorer
{
 
 public: // with description
      G4PSTrackLength(G4String name, G4int depth=0);
      G4PSTrackLength(G4String name, const G4String& unit, G4int depth=0);
      virtual ~G4PSTrackLength();

      inline void Weighted(G4bool flg=true) { weighted = flg; }
      // Multiply track weight

      void MultiplyKineticEnergy(G4bool flg=true);
      // Multiply Kinetic Energy

      void DivideByVelocity(G4bool flg=true);
      // Divide by velocity


  protected: // with description
      virtual G4bool ProcessHits(G4Step*,G4TouchableHistory*);

  public: 
      virtual void Initialize(G4HCofThisEvent*);
      virtual void EndOfEvent(G4HCofThisEvent*);
      virtual void clear();
      virtual void DrawAll();
      virtual void PrintAll();

      virtual void SetUnit(const G4String& unit);

  protected:
      virtual void DefineUnitAndCategory();

  private:
      G4int HCID;
      G4THitsMap<G4double>* EvtMap;
      G4bool weighted;
      G4bool multiplyKinE;
      G4bool divideByVelocity;
};
#endif