#ifndef AliAnaParticleJetFinderCorrelation_H
#define AliAnaParticleJetFinderCorrelation_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice     */
/* $Id: AliAnaParticleJetFinderCorrelation.h 21839 2007-10-29 13:49:42Z gustavo $ */


//_________________________________________________________________________
// Class that contains the algorithm for the analysis of particle (direct gamma) - jet 
// (standard jet found with JETAN) correlation 
// Particle and jet for correlation found by independent algorithms.
// For Example direct isolated photon found in AliAnaGammaDirect and the jet with JETAN
//
//-- Author: Gustavo Conesa (INFN-LNF)

// --- ROOT system ---
class TH2F;

//---- Analysis system ----
class AliLog;
#include "AliAnaPartCorrBaseClass.h"
     
class AliAnaParticleJetFinderCorrelation : public AliAnaPartCorrBaseClass {
       
	public: 
       
		AliAnaParticleJetFinderCorrelation() ; // default ctor
		AliAnaParticleJetFinderCorrelation(const AliAnaParticleJetFinderCorrelation & g) ; // cpy ctor
		AliAnaParticleJetFinderCorrelation & operator = (const AliAnaParticleJetFinderCorrelation & g) ;//cpy assignment
		virtual ~AliAnaParticleJetFinderCorrelation() {;} //virtual dtor
              
		TList * GetCreateOutputObjects();
       
		void InitParameters();
       
		void Print(const Option_t * opt) const;
       
		Float_t  GetConeSize() const {return fConeSize ; }
		Float_t  GetPtThresholdInCone() const {return fPtThresholdInCone ; }	   
		Double_t GetDeltaPhiMaxCut() const {return fDeltaPhiMaxCut ; }
		Double_t GetDeltaPhiMinCut() const {return fDeltaPhiMinCut ; }
		Double_t GetRatioMaxCut() const {return fRatioMaxCut ; }
		Double_t GetRatioMinCut() const {return fRatioMinCut ; }  	   
		Bool_t	 AreJetRefTracks() const {return fUseJetRefTracks ; }
		Bool_t   IsCorrelationMadeInHistoMaker() const {return fMakeCorrelationInHistoMaker ;} 
		
		void SetConeSize(Float_t cone) {fConeSize = cone; }
		void SetPtThresholdInCone(Float_t pt){fPtThresholdInCone = pt; };	   
		void SetDeltaPhiCutRange(Double_t phimin, Double_t phimax)
			{fDeltaPhiMaxCut =phimax;  fDeltaPhiMinCut =phimin;}
		void SetRatioCutRange(Double_t ratiomin, Double_t ratiomax)
			{fRatioMaxCut =ratiomax;  fRatioMinCut = ratiomin ; }
		void UseJetRefTracks(Bool_t use) {fUseJetRefTracks = use ; }	
	    void SetMakeCorrelationInHistoMaker(Bool_t make) {fMakeCorrelationInHistoMaker = make ;}	
		
	 private:
    
		Int_t SelectJet(AliAODParticleCorrelation * particle) ;
	
	    void MakeAnalysisFillAOD() ;
        void MakeAnalysisFillHistograms() ;
			
  private:
       
	//selection parameters  
	Double_t   fDeltaPhiMaxCut ; //! Minimum Delta Phi Gamma-Leading
	Double_t   fDeltaPhiMinCut ; //!  Maximum Delta Phi Gamma-Leading
	Double_t   fRatioMaxCut ; //! Jet/ particle Ratio cut maximum
	Double_t   fRatioMinCut ; //! Jet/particle Ratio cut minimum
	   
	Double_t   fConeSize  ;         //! Jet cone size 
	Double_t   fPtThresholdInCone ; //! Jet pT threshold in jet cone
	Bool_t     fUseJetRefTracks ; //! Use track references from JETAN not the AOD tracks
	Bool_t	   fMakeCorrelationInHistoMaker ; //!Make particle-jet correlation in histogram maker
	   
	TH2F * fhDeltaEta; //! Difference of jet eta and trigger particle eta as function of trigger particle pT
	TH2F * fhDeltaPhi;  //! Difference of jet phi and trigger particle phi as function of trigger particle pT
	TH2F * fhDeltaPt; //! Difference of jet pT and trigger particle pT as function of trigger particle pT
	TH2F * fhPtRatio; //! Ratio of jet pT and trigger particle pT as function of trigger particle pT
	TH2F * fhPt; //! jet pT vs trigger particle pT 
		
	TH2F * fhFFz ; //! Accepted reconstructed jet fragmentation function, z=ptjet/pttrig
	TH2F * fhFFxi; //! Accepted reconstructed jet fragmentation function, xsi = ln(pttrig/ptjet)
	TH2F * fhFFpt; //! Jet particle pt distribution in cone
	TH2F * fhNTracksInCone   ; //! jet multiplicity in cone
	   
	ClassDef(AliAnaParticleJetFinderCorrelation,1)
 } ;


#endif //AliAnaParticleJetFinderCorrelation_H