#ifndef MARS_MSignalPix
#define MARS_MSignalPix

#ifndef MARS_MParContainer
#include "MParContainer.h"
#endif
#ifndef MARS_MMath
#include "MMath.h"
#endif

class MSignalPix : public MParContainer
{
private:
    Bool_t   fIsCore;        //! the pixel is a Core pixel -> kTRUE
    Short_t  fRing;          //! NT: number of analyzed rings around the core pixels, fRing>0 means: used, fRing= 0 means: unused, fRing= -1 means: unmapped (no possible to use in the calculation of the image parameters)
    Short_t  fIdxIsland;     //! the pixel is a Core pixel -> kTRUE

    Float_t  fPhot;          // The number of Cerenkov photons
    Float_t  fErrPhot;       // the error of fPhot
    Float_t  fArrivalTime;   // Calibrated Arrival Time
    // FIXME: arrival time t, and it's error sigma t

public:
    MSignalPix(/*Int_t pix=-1,*/ Float_t phot=0, Float_t errphot=0);

    void Clear(Option_t *o=0);

    Float_t GetNumPhotons() const       { return fPhot;    }
    Float_t GetErrorPhot() const        { return fErrPhot; }
    Float_t GetArrivalTime() const      { return fArrivalTime; }
    
    Bool_t  IsPixelUsed() const         { return fRing>0; }
    Bool_t  IsPixelUnmapped() const     { return fRing==-1; }
    void    SetPixelUnused()            { fRing=0; }
    void    SetPixelUsed()              { fRing=1; }
    void    SetPixelUnmapped()          { fRing=-1;}
    void    SetIdxIsland(Short_t num)   { fIdxIsland=num; }
    Short_t GetIdxIsland() const        { return fIdxIsland; }

    void    SetRing(UShort_t r)         { fRing = r;   }
    Short_t GetRing() const             { return fRing;}

    void    SetPixelCore(Bool_t b=kTRUE){ fIsCore = b; }
    Bool_t  IsPixelCore() const         { return fIsCore;  }

    void    SetNumPhotons(Float_t f)    { MMath::ReducePrecision(f); fPhot     = f; }
    void    SetErrorPhot(Float_t f)     { MMath::ReducePrecision(f); fErrPhot = f; }
    void    Set(Float_t np, Float_t ep) { MMath::ReducePrecision(np); MMath::ReducePrecision(ep);  fPhot = np; fErrPhot = ep; }
    void    SetArrivalTime(Float_t tm)  { MMath::ReducePrecision(tm); fArrivalTime = tm; }

    void    AddNumPhotons(Float_t f)    { fPhot += f; }

    void    Scale(Float_t f)            { fPhot/=f; }

    void    Print(Option_t *opt = NULL) const;
    Bool_t  IsSortable() const { return kTRUE; }

    ClassDef(MSignalPix, 6)  // class containing information about the Cerenkov Photons in a pixel
};

#endif