////////////////////////////////////////////////
//					      //
//  Manager classe for TOF                    //
//  Interface :                               //
//  AliTOF                                    //
//  Associations between TOF related objects  //
//  are defined here                          //
// -- Authors: Pierella, Seganti, Vicinanza   //
//    (Bologna and Salerno University)        //
//                                            //
////////////////////////////////////////////////

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

/* $Id$ */

class TFile;
class TDirectory;
class TString ;  
class TTask ;
class TFolder ;
class AliTOFMerger;

#include "TObject.h"
#include "TTree.h" 
#include "AliDetector.h"
#include <Riostream.h>
#include "AliTOFMerger.h"
#include "AliTOFSDigitizer.h"


class AliTOF : public AliDetector {
public:
  AliTOF(); 
  AliTOF(const char *name, const char *title, Option_t *option="noTimeZero");
  virtual ~AliTOF() ;
// getters for AliTOF object status
  Int_t GetNStripA() const {return fNStripA;}
  Int_t GetNStripB() const {return fNStripB;}
  Int_t GetNStripC() const {return fNStripC;}
  Int_t GetNpadX()   const {return fNpadX;}
  Int_t GetNpadZ()   const {return fNpadZ;}
  Int_t GetPadXStr() const {return fPadXStr;}
  Float_t GetTimeRes() const {return fTimeRes;}
  Float_t GetChrgRes() const {return fChrgRes;}

  virtual void    SetTreeAddress();
  virtual void    AddHit(Int_t track, Int_t* vol, Float_t* hits);
  virtual void    AddT0Hit(Int_t track, Int_t* vol, Float_t* hits);
  virtual void    AddDigit(Int_t* tracks, Int_t* vol, Float_t* digits);
  virtual void    AddSDigit(Int_t tracknum, Int_t* vol, Float_t* digits);
  virtual void    CreateGeometry();
  virtual void    CreateMaterials();
  virtual void    Init();
//  virtual void    MakeBranch(Option_t* option, const char *file=0);
  virtual void    MakeBranch(Option_t *opt=" ");
  virtual void    Makehits(Bool_t hits=1);
  virtual void    FinishEvent();
  virtual Int_t   IsVersion() const =0;
  Int_t           DistancetoPrimitive(Int_t px, Int_t py) const;
  virtual void    StepManager()=0;
  virtual void    TOFpc(Float_t /*xtof*/, Float_t /*ytof*/, Float_t /*zlenC*/,
                        Float_t /*zlenB*/, Float_t /*zlenA*/, Float_t /*ztof0*/){}
  virtual void    DrawModule() const;
  virtual void    DrawDetectorModules()=0;
  virtual void    DrawDetectorStrips()=0;
//  virtual void   DrawDetectorModulesinFrame()=0;
//  virtual void   DrawDetectorStripsinFrame()=0;
          void    CreateTOFFolders();
  Bool_t    CheckOverlap(Int_t* vol, Float_t* digit, Int_t Track);
  virtual void    SDigits2Digits();
  virtual void    SetMerger(AliTOFMerger* merger);
  virtual AliTOFMerger* Merger();
//  virtual void    Hits2Digits();   
  virtual void    Hits2SDigits();
  virtual void    Hits2SDigits(Int_t evNumber1, Int_t evNumber2);
  virtual AliDigitizer* CreateDigitizer(AliRunDigitizer* manager) const; 
  virtual void    Digits2Reco() {cout << "AliTOF::Digits2Reco()  dummy function called" << endl;}
          void    Digits2Raw (Int_t evNumber=0);
          void    Raw2Digits (Int_t evNumber=0);
  virtual void    ResetHits();
  virtual void    ResetDigits();
  virtual void    ResetSDigits();
  TClonesArray *SDigits() const {return fSDigits;}
  TClonesArray *ReconParticles() const {return fReconParticles;}
  void RecreateSDigitsArray();
  void CreateSDigitsArray();

  Int_t   fNevents ;        // Number of events to digitize

protected:
  TFolder* fFGeom ;       //  Folder that holds the Geometry definition
  TTask*   fDTask ;       //  TOF Digitizer container
  TTask*   fReTask;       //  TOF Reconstructioner container
  TClonesArray* fSDigits; //!  List of summable digits
  Int_t    fNSDigits;           //! Number of sdigits
  TClonesArray* fReconParticles; // List of reconstructed particles
  AliTOFMerger *fMerger;   // ! pointer to merger
  Int_t   fNTof;  // number of TOF sectors
  Float_t fRmax;  // upper bound for radial extension of TOF detector
  Float_t fRmin;  // lower bound for radial extension of TOF detector
  Float_t fZlenA; // length along z-axis of type A module 
  Float_t fZlenB; // length along z-axis of type B module
  Float_t fZlenC; // length along z-axis of type C module
  Float_t fZtof;  // total semi-length of TOF detector
  Float_t fStripLn;  //  Strip Length
  Float_t fSpace;    //  Space Beetween the strip and the bottom of the plate
  Float_t fDeadBndZ; //  Dead Boundaries of a Strip along Z direction (width)
  Float_t fDeadBndX; //  Dead Boundaries of a Strip along X direction (length)
  Float_t fXpad;  //  X size of a pad
  Float_t fZpad;  //  Z size of a pad
  Float_t fGapA;  //  Gap beetween tilted strip in A-type plate
  Float_t fGapB;  //  Gap beetween tilted strip in B-type plate
  Float_t fOverSpc; // Space available for sensitive layers in radial direction
  Int_t   fNpadX; // Number of pads in a strip along the X direction
  Int_t   fNpadZ; // Number of pads in a strip along the Z direction
  Int_t   fPadXStr; // Number of pads per strip
  Int_t   fNStripA; // number of strips in A type module
  Int_t   fNStripB; // number of strips in B type module
  Int_t   fNStripC; // number of strips in C type module
  Float_t fTimeRes; // time resolution of the TOF
  Float_t fChrgRes; // charge resolution of ADC
  Int_t   fPadXSector; // number of pads per sector
  Int_t   fNRoc;       // number of ROC
  Int_t   fNFec;       // number of FEC
  Int_t   fNTdc;       // number of TDC
  Int_t   fNPadXRoc;   // number of pads for each ROC
  Int_t   fIdSens;     // the unique numeric identifier for sensitive volume FPAD 
  Bool_t  fTZero;      // flag indicating if T0 is used

private:

  ClassDef(AliTOF,6)  // Time Of Flight base class
};
 
#endif /* ALITOF_H */