#ifndef ALIITSUSEGMENTATIONPIX_H
#define ALIITSUSEGMENTATIONPIX_H

#include "AliITSsegmentation.h"



// segmentation and response for pixels in ITS upgrade 

class AliITSUSegmentationPix :
public AliITSsegmentation {
 public:
  AliITSUSegmentationPix(UInt_t id=0, int nchips=0,int ncol=0,int nrow=0,
			 float pitchX=0,float pitchZ=0,
			 float thickness=0,
			 float pitchLftC=-1,float pitchRgtC=-1,
			 float edgL=0,float edgR=0,float edgT=0,float edgB=0);
  
  //  AliITSUSegmentationPix(Option_t *opt="" );
  AliITSUSegmentationPix(const AliITSUSegmentationPix &source);
  virtual ~AliITSUSegmentationPix();
  AliITSUSegmentationPix& operator=(const AliITSUSegmentationPix &source);
  //
  virtual void    Init();
  //  
  virtual void    SetNPads(Int_t, Int_t) {MayNotUse("SetPadSize");}
  virtual Int_t   GetNPads() const {return fNCol*fNRow;}
  //
  virtual void    GetPadIxz(Float_t x,Float_t z,Int_t &ix,Int_t &iz) const;
  virtual void    GetPadCxz(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const;
  virtual void    GetPadTxz(Float_t &x ,Float_t &z) const;
  virtual Bool_t  LocalToDet(Float_t x,Float_t z,Int_t &ix,Int_t &iz) const;
  virtual void    DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const;
  virtual void    CellBoundries(Int_t ix,Int_t iz,Double_t &xl,Double_t &xu,
				Double_t &zl,Double_t &zu) const;
  //
  virtual Int_t    GetNumberOfChips() const {return fNChips;}
  virtual Int_t    GetMaximumChipIndex() const {return fNChips-1;}
  //
  virtual Int_t    GetChipFromLocal(Float_t, Float_t zloc) const;
  virtual Int_t    GetChipsInLocalWindow(Int_t* array, Float_t zmin, Float_t zmax, Float_t, Float_t) const;
  //
  virtual Int_t    GetChipFromChannel(Int_t, Int_t iz) const;
  //
  virtual Float_t  Dpx(Int_t ix=0) const;
  virtual Float_t  Dpz(Int_t iz)   const;
  Float_t          DxActive()      const {return fDxActive;}
  Float_t          DzActive()      const {return fDzActive;}
  Float_t          GetShiftXLoc()  const {return fShiftXLoc;}
  Float_t          GetShiftZLoc()  const {return fShiftZLoc;}
  Float_t          GetGuardLft()   const {return fGuardLft;}
  Float_t          GetGuardRgt()   const {return fGuardRgt;}
  Float_t          GetGuardTop()   const {return fGuardTop;}
  Float_t          GetGuardBot()   const {return fGuardBot;}
  //
  Int_t            GetNRow()       const {return fNRow;}
  Int_t            GetNCol()       const {return fNCol;}
  //
  virtual Int_t    Npx()           const {return GetNRow();}
  virtual Int_t    Npz()           const {return GetNCol();}
  //
  virtual void Neighbours(Int_t iX,Int_t iZ,Int_t* Nlist,Int_t Xlist[10],Int_t Zlist[10]) const;
  //
  virtual void PrintDefaultParameters() const {AliWarning("No def. parameters defined as const static data members");}
  virtual void Print(Option_t* option = "") const;
  //
  virtual Int_t                    GetChipTypeID()              const {return GetUniqueID();}
  //
  void         SetDiodShiftMatrix(Int_t nrow,Int_t ncol, const Float_t *shiftX, const Float_t *shiftZ);
  void         SetDiodShiftMatrix(Int_t nrow,Int_t ncol, const Double_t *shiftX, const Double_t *shiftZ);
  void         GetDiodShift(Int_t row,Int_t col, Float_t &dx,Float_t &dz) const;
  void         GetDiodShift(Int_t row,Int_t col, Double_t &dx,Double_t &dz) const {float dxf,dzf; GetDiodShift(row,col,dxf,dzf); dx=dxf; dz=dzf; }
  //
  Bool_t                           Store(const char* outf);
  static AliITSUSegmentationPix*   LoadWithID(UInt_t id, const char* inpf);
  static void                      LoadSegmentations(TObjArray* dest, const char* inpf);
  //
 protected:
  Float_t Z2Col(Float_t z) const;
  Float_t Col2Z(Int_t col) const;
  //
 protected:
    Float_t fGuardLft;        // left guard edge
    Float_t fGuardRgt;        // right guard edge
    Float_t fGuardTop;        // upper guard edge
    Float_t fGuardBot;        // bottom guard edge
    Float_t fShiftXLoc;       // shift in local X of sensitive area wrt geometry center
    Float_t fShiftZLoc;       // shift in local Z of sensitive area wrt geometry center
    Float_t fDxActive;        // size of active area in X
    Float_t fDzActive;        // size of active area in Z    
    Float_t fPitchX;          // default pitch in X
    Float_t fPitchZ;          // default pitch in Z
    Float_t fPitchZLftCol;    // Z pitch of left column of each chip
    Float_t fPitchZRgtCol;    // Z pitch of right column of each chip
    Float_t fChipDZ;          // aux: chip size along Z
    Int_t   fNChips;          // number of chips per chip
    Int_t   fNColPerChip;     // number of columns per chip
    Int_t   fNRow;            // number of rows
    Int_t   fNCol;            // number of columns (total)
    //
    Int_t   fDiodShiftMatNCol; // periodicity of diod shift in columns
    Int_t   fDiodShiftMatNRow; // periodicity of diod shift in rows
    Int_t   fDiodShiftMatDim;  // dimension of diod shift matrix
    Float_t* fDiodShidtMatX; //[fDiodShiftMatDim] diod shift in X (along column), in fraction of X pitch
    Float_t* fDiodShidtMatZ; //[fDiodShiftMatDim] diod shift in Z (along row), in fraction of Z pitch
    //
    static const char* fgkSegmListName; // pattern for segmentations list name
    //
  ClassDef(AliITSUSegmentationPix,3) //Segmentation class upgrade pixels 

};

#endif