#ifndef ALITPCCALIBLASER_H
#define ALITPCCALIBLASER_H

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

////
////
////

#include "TObject.h"
#include "TObjArray.h"
#include "TLinearFitter.h"
#include "AliTPCcalibBase.h"
#include "TH1.h"


class AliExternalTrackParam;
class AliESDtrack;
class AliESDEvent;
class AliESDfriend;
class TGraphErrors;
class TTree;

class AliTPCcalibLaser:public AliTPCcalibBase {
public:
  AliTPCcalibLaser();
  AliTPCcalibLaser(const Text_t *name, const Text_t *title);
  virtual ~AliTPCcalibLaser();
  virtual void     Process(AliESDEvent *event);
  virtual void Analyze();
  virtual Long64_t Merge(TCollection *li);
  virtual void DumpMeanInfo(Float_t bfield, Int_t run=-1, Int_t minEntries=100);
  static  void DumpScanInfo(TTree * tree);
  static  void DumpFitInfo(TTree * chainFit, Int_t id);
  //
  //
  virtual void DumpLaser(Int_t id);
  virtual void RefitLaser(Int_t id);
  virtual void RefitLaserJW(Int_t id);
  void         FitDriftV();
  void         MakeDistHisto();
  void         AddCut(Double_t xcut, Double_t ycut, Double_t ncl){fEdgeXcuts[fNcuts]=xcut; fEdgeYcuts[fNcuts]=ycut; fNClCuts[fNcuts]=ncl; fNcuts++;}

  Int_t  FindMirror(AliESDtrack *track, AliTPCseed *seed);
  Bool_t AcceptLaser(Int_t id);
  
  AliESDEvent  * fESD;             //! ESD event  - not OWNER
  AliESDfriend * fESDfriend;       //! ESD event  - not OWNER
  TObjArray      fTracksMirror;    //! tracks with mirror information
  TObjArray      fTracksEsd;       //! tracks with reconstructed information - 
  //                               not owner ESD
  TObjArray      fTracksEsdParam;  //! tracks with reconstructed information - 
  //                               is owner ESD at mirror
  TObjArray      fTracksTPC;       //! tracks with reconstructed information - TPC
  //
  TObjArray      fDeltaZ;          //-> array of histograms of delta z for each track
  TObjArray      fDeltaP3;              //-> array of histograms of P3      for each track
  TObjArray      fDeltaP4;              //-> array of histograms of P4      for each track
  TObjArray      fDeltaPhi;        //-> array of histograms of delta z for each track
  TObjArray      fDeltaPhiP;       //-> array of histograms of delta z for each track
  TObjArray      fSignals;         //->Array of dedx signals
  //
  // Residual histograms
  //
  TObjArray      fDeltaYres;       //-> array of histograms of delta y residuals for each track
  TObjArray      fDeltaZres;       //-> array of histograms of delta z residuals for each track
  // Fit Parameter histograms
  TObjArray      fPol2Par2InY;      //-> array of histograms. 2nd derivative of pol2 fits per track (Inner chamber)
  TObjArray      fDiffPar1InY;      //-> array of histograms. difference of 1st derivative of pol1 and pol2 fits per track (Inner chamber)
  TObjArray      fPol2Par2OutY;     //-> array of histograms. 2nd derivative of pol2 fits per track (Outer chamber)
  TObjArray      fDiffPar1OutY;     //-> array of histograms. difference of 1st derivative of pol1 and pol2 fits per track (Outer chamber)
  TObjArray      fPol2Par2InZ;      //-> array of histograms. 2nd derivative of pol2 fits per track (Inner chamber)
  TObjArray      fDiffPar1InZ;      //-> array of histograms. difference of 1st derivative of pol1 and pol2 fits per track (Inner chamber)
  TObjArray      fPol2Par2OutZ;     //-> array of histograms. 2nd derivative of pol2 fits per track (Outer chamber)
  TObjArray      fDiffPar1OutZ;     //-> array of histograms. difference of 1st derivative of pol1 and pol2 fits per track (Outer chamber)
  //
  TVectorD*      fFitAside;        //! drift fit - A side
  TVectorD*      fFitCside;        //! drift fit - C- side
  //
  TVectorD       fEdgeXcuts;       //! cuts in local x direction; used in the refit of the laser tracks
  TVectorD       fEdgeYcuts;       //! cuts in local y direction; used in the refit of the laser tracks
  TVectorD       fNClCuts;         //! cuts on the number of clusters per tracklet; used in the refit of the laser tracks
  Int_t          fNcuts;           //! number of cuts
  //
  Int_t          fRun;             // current run number
  Int_t          fEvent;           // cuttent event - internal counter
private:
  ClassDef(AliTPCcalibLaser,1)
};





#endif