#ifndef ALIMUONDIGITIZER_H
#define ALIMUONDIGITIZER_H
/* Copyright(c) 1998-2001, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */
#include "../STEER/AliDigitizer.h"

class AliRunDigitizer;
class AliMUONPadHit;
class AliHitMap;

class AliMUONDigitizer : public AliDigitizer {
 public:
    
    AliMUONDigitizer();
    AliMUONDigitizer(AliRunDigitizer * manager);
    virtual ~AliMUONDigitizer();

    // Compare pad hits
    virtual Bool_t Exists(const AliMUONPadHit * sdigit);
    // Update a pad hit
    virtual  void Update(AliMUONPadHit *sdigit);
    // Create a new hit
    virtual  void CreateNew(AliMUONPadHit *sdigit);

    // Initialize merging and digitization
    virtual Bool_t Init();

    // Do the main work
    void Digitize() ;
    
    enum {kBgTag = -1};
    
 private:    
    void SortTracks(Int_t *tracks,Int_t *charges,Int_t ntr);
    
 private:
    AliRunDigitizer *fManager;      // ! pointer to the AliRunDigitizer object
    TTree *fTrH1;                   // ! Hits Tree
    TClonesArray *fHits;            // ! List of hits for one track only
    TClonesArray *fPadHits;         // ! List of clusters for one track only
    AliHitMap **fHitMap;            // ! pointer to array of pointers to hitmaps
    Int_t fNch;                     // ! chamber nr (loop variable)
    Int_t fTrack;                   // ! track nr (loop variable)
    TObjArray *fTDList;             // ! list of AliMUONTransientDigits
    TObjArray *fTrList;             // ! list of tracks
    TClonesArray *fAddress;         // ! pointer to TClonesArray of TVectors with trackinfo
    Int_t fCounter;                 // ! nr. of AliMUONTransientDigit
    Int_t fCountadr;                // ! counter for trinfo
    Int_t fDigits[6];               // ! array with digits
    Int_t fEvNrSig;                 // signal     event number
    Int_t fEvNrBgr;                 // background event number    
    TClonesArray * fHeaderFiles ;   // Names of files with headers to merge
    Bool_t fInitialized;            // if first file already read
    
    ClassDef(AliMUONDigitizer,1)
};    
#endif