#ifndef ALIHBTLLWEIGHTSPID_H
#define ALIHBTLLWEIGHTSPID_H
/////////////////////////////////////////////////////////////
//
//This class introduces the weights calculated according 
//with functions of efficiency of identification (TPC+TOF) 
//(calculated by B.V. Batyunia).
//
//Author: Ludmila Malinina, JINR (malinina@sunhe.jinr.ru)
//
/////////////////////////////////////////////////////////////

#include <TObject.h>
class TF1;
class TH1;
class AliHBTPair;
class AliHBTLLWeightsPID: public TObject
 {
 public:
   AliHBTLLWeightsPID();
   AliHBTLLWeightsPID(const AliHBTLLWeightsPID &source):TObject(source) {
     //Copy ctor needed by the coding conventions but not used
     Fatal("AliHBTLLWeightsPID","copy ctor not implemented");
   }
   AliHBTLLWeightsPID & operator=(const AliHBTLLWeightsPID &/*source*/) {
     //Assignment operator needed by the coding conventions but not used
     Fatal("AliHBTLLWeightsPID","assignment operator not implemented");
     return * this;
   }
   virtual ~AliHBTLLWeightsPID(){;}
   static AliHBTLLWeightsPID* Instance();
   
   Double_t GetWeightPID(const AliHBTPair* trackpair); //get weight calculated Batyunia's  algorithm
   
 protected:
   Float_t fEfficTPC1; // ...?
   Float_t fEfficTPC2; // ...?
   Float_t fEfficTOF1; // ...?
   Float_t fEfficTOF2; // ...?
   
   static AliHBTLLWeightsPID *fgWeightsPID;// pointer to wrapper of Fortran Lednicky code   
   TH1 *fPtK;   //comment?
   TH1 *fPtKefftpc;//comment?
   TH1 *fPtKefftpcboth;//comment?
   TF1 *fEffic1pol;//comment?
   TF1 *fEffic2pol;//comment?
   TF1 *fEffic3pol;//comment?
   TF1 *fEffic4pol;//comment?
   
   TF1 *fEffic1polTOF;//comment?
   TF1 *fEffic2polTOF;//comment?
   TF1 *fEffic3polTOF;//comment?
   TF1 *fEffic4polTOF;//comment?
   
   ClassDef(AliHBTLLWeightsPID,1)
 };

#endif