#ifndef ALIDETECTOR_H
#define ALIDETECTOR_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

#include <AliModule.h>
class AliHit;
class AliTrackReference;
class TTree;
class TBranch;

class AliDetector : public AliModule {

public:

  // Creators - distructors
  AliDetector(const char* name, const char *title);
  AliDetector();
  AliDetector(const AliDetector &det);
  virtual ~AliDetector();

  // Inline functions
  void  Copy(AliDetector &det) const;
  virtual int   GetNdigits() const {return fNdigits;}
  virtual int   GetNhits()   const {return fNhits;}
  TClonesArray *Digits() const {return fDigits;}
  TClonesArray *Hits()   const {return fHits;}
  TClonesArray *TrackReferences()   const {return fTrackReferences;}
  virtual void        RemapTrackReferencesIDs(Int_t *map); //remaping track references MI

  TObjArray    *Points() const {return fPoints;}
  Int_t         GetIshunt() const {return fIshunt;}
  void          SetIshunt(Int_t ishunt) {fIshunt=ishunt;}
  AliDetector &operator=(const AliDetector &det) 
  {det.Copy(*this); return (*this);}
  
  // Other methods
  virtual void        Publish(const char *dir, void *c, const char *name=0);
  virtual void        Browse(TBrowser *b);
  virtual void        FinishRun();
  virtual void        LoadPoints(Int_t track);
  virtual void        MakeBranch(Option_t *opt=" ", const char *file=0 );
  virtual void        MakeBranchTR(Option_t *opt=" ", const char *file=0 );
  virtual void        ResetDigits();
  virtual void        ResetHits();
  virtual void        ResetTrackReferences();

  virtual void        ResetPoints();
  virtual void        SetTreeAddress();
  virtual void        SetTimeGate(Float_t gate) {fTimeGate=gate;}
  virtual Float_t     GetTimeGate() const {return fTimeGate;}
  virtual void        StepManager() {}
  virtual void        DrawModule() {}
  virtual AliHit*     FirstHit(Int_t track);
  virtual AliHit*     NextHit();
  virtual AliTrackReference * FirstTrackReference(Int_t track);
  virtual AliTrackReference * NextTrackReference();
  virtual void        SetBufferSize(Int_t bufsize=8000) {fBufferSize = bufsize;}  
  virtual TBranch*    MakeBranchInTree(TTree *tree, const char* cname, void* address, Int_t size=32000, const char *file=0);
  virtual TBranch*    MakeBranchInTree(TTree *tree, const char* cname, const char* name, void* address, Int_t size=32000, Int_t splitlevel=99, const char *file=0);
   
  // Data members
protected:      
  
  Float_t       fTimeGate;    //Time gate in seconds

  Int_t         fIshunt;      //1 if the hit is attached to the primary
  Int_t         fNhits;       //!Number of hits
  Int_t         fNdigits;     //!Number of digits
  Int_t         fBufferSize;  //!buffer size for Tree detector branches
  TClonesArray *fHits;        //List of hits for one track only
  TClonesArray *fDigits;      //List of digits for this detector
  char         *fDigitsFile;  //!File to store branches of digits tree for detector 
  TObjArray    *fPoints;      //!Array of points for each track (all tracks in memory)
  TClonesArray *fTrackReferences; //list of track references - for one primary track only -MI
  Int_t         fMaxIterTrackRef; //!for track refernce iterator routines
  Int_t         fCurrentIterTrackRef; //!for track refernce iterator routines
  ClassDef(AliDetector,2)  //Base class for ALICE detectors
};
#endif