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// $Id$
//

#ifndef G4PSPassageTrackLength_h
#define G4PSPassageTrackLength_h 1

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

////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring only track length.
//   The tracks which passed a geometry is taken into account.
// 
//
// Created: 2005-11-14  Tsukasa ASO, Akinori Kimura.
// 2010-07-22   Introduce Unit specification.
// 
///////////////////////////////////////////////////////////////////////////////

class G4PSPassageTrackLength : public G4VPrimitiveScorer
{
 
  public: // with description
      G4PSPassageTrackLength(G4String name, G4int depth=0);
      G4PSPassageTrackLength(G4String name, const G4String& unit, 
			     G4int depth=0);
      virtual ~G4PSPassageTrackLength();

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

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

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

      virtual void SetUnit(const G4String& unit);

  private:
      G4int HCID;
      G4int fCurrentTrkID;
      G4double fTrackLength;
      G4THitsMap<G4double>* EvtMap;
      G4bool weighted;

};

#endif