#ifndef __FFbarSpring__
#define __FFbarSpring__

//////////////////////////////////////////////////////////////////////////
//
// FFbarSpring
//
// Sample program
//
//////////////////////////////////////////////////////////////////////////

#include "TNamed.h"
#include "TH1.h"

#ifndef __JSFModule__
#include "JSFModule.h"
#endif
#ifndef __JSFBases__
#include "JSFBases.h"
#endif
#ifndef __JSFSpring__
#include "JSFSpring.h"
#endif

//  <<+LLbar>>
const Double_t   kPi=3.141592654;
const Double_t   kAlpha=0.0078125;   // = 1/128
const Double_t   kGev2fb=0.38927e12;
//  <<-LLbar>>

class FFbarBases  : public JSFBases {
protected:
//  <<+LLbar>>
  Double_t fCosth;
  Double_t fPhi;   

  Double_t  fXU[2];
  Double_t  fXL[2];
  Int_t    fID   ; // Parton ID.
  Float_t  fEcm  ; // Center of mass energy
  Float_t  fCharge ; // Parton Charge.		 

//  <<-LLbar>>
public:
  FFbarBases(const char *name="FFbarBases", 
	     const char *title="FFbar  Bases");
  virtual ~FFbarBases(){} 

//  <<+LLbar>>
  void SetID(Int_t id){ fID=id; }
  void SetEcm(Float_t ecm){ fEcm=ecm; }
  void SetCharge( Float_t c){ fCharge=c;}
  void SetParton(Int_t id, Float_t c){ fID=id; fCharge=c;}

  Double_t GetCosth(){ return fCosth;}
  Double_t GetPhi(){ return fPhi; }

  Int_t GetID(){return fID;}
  Float_t GetEcm(){ return fEcm;}
  Float_t GetCharge(){ return fCharge;}
//  <<-LLbar>>
  //  void Userin();   // Bases user initialization
  //  void Userout();  // Bases user output 
  virtual Double_t Func(); // Bases integration function.

  ClassDef(FFbarBases,1)  // Bases for e+e- -> l+l- process

};

class FFbarSpring;

class FFbarSpringBuf : public JSFSpringBuf {
public:
//  <<+LLbar>>
  Double_t fCosth;
  Double_t fPhi;
//  <<-LLbar>>
public:
  FFbarSpringBuf(const char *name="FFbarSpringBuf", 
	     const char *title="FFbar Spring test event buffer",
	     FFbarSpring *spring=NULL)
	     : JSFSpringBuf(name,title,(JSFSpring*)spring) {} 
  virtual ~FFbarSpringBuf(){}
  virtual Bool_t SetPartons();

  ClassDef(FFbarSpringBuf,1)  // FFbarSpring event buffer
};

class FFbarSpring : public JSFSpring {
public:
   FFbarSpring(const char *name="FFbarSpring", 
	      const char *title="FFbar Spring test",
             FFbarBases *bases=NULL);
   virtual ~FFbarSpring();
   ClassDef(FFbarSpring,1)  // FFbarSpring class
};


#endif