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// $Id: G4NeutronHPPhotonDist.hh,v 1.17 2008-06-26 02:40:23 tkoi Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//
 // Hadronic Process: Very Low Energy Neutron X-Sections
 // original by H.P. Wellisch, TRIUMF, 14-Feb-97
//
// 070606 fix for Valgrind error by T. Koi
// 070612 fix memory leaking by T. Koi
// 070615 fix memory leaking by T. Koi
// 080625 fix memory leaking by T. Koi
//
 
#ifndef G4NeutronHPPhotonDist_h
#define G4NeutronHPPhotonDist_h 1
#include "globals.hh"
#include <fstream>
#include "G4ios.hh"
#include "globals.hh"
#include "G4NeutronHPVector.hh"
#include "G4NeutronHPLegendreTable.hh"
#include "G4NeutronHPAngularP.hh"
#include "G4NeutronHPPartial.hh"
#include "G4NeutronHPFastLegendre.hh"
#include "G4NeutronHPInterpolator.hh"
#include "G4ReactionProductVector.hh"
#include "G4ReactionProduct.hh"
#include "G4Gamma.hh"
#include "G4InterpolationManager.hh"

class G4NeutronHPPhotonDist
{
public:

  G4NeutronHPPhotonDist()
      : repFlag( 0 ) 
      , targetMass( 0.0 ) 
      , nDiscrete( 0 ) 
      , isoFlag( 0 )
      , tabulationType( 0 )
      , nDiscrete2( 0 ) 
      , nIso( 0 ) 
      , nPartials( 0 )
      , theInternalConversionFlag( 0 )
      , nGammaEnergies( 0 )
      , theBaseEnergy( 0.0 )
  {

     disType = 0;
     energy = 0;
     theYield = 0;
     thePartialXsec = 0;
     isPrimary = 0;
     theShells = 0;
     theGammas = 0;
     nNeu = 0;
     theLegendre = 0;
     theAngular = 0;
     distribution = 0;
     probs = 0;
     partials = 0;
     actualMult = 0;

     theLevelEnergies = 0;
     theTransitionProbabilities = 0;
     thePhotonTransitionFraction = 0;

  }

  ~G4NeutronHPPhotonDist()
  {
     delete [] disType;
     delete [] energy;
     delete [] theYield;
     delete [] thePartialXsec;
     delete [] isPrimary;
     delete [] theShells;
     delete [] theGammas;
     delete [] nNeu;
     delete [] theAngular;
     delete [] distribution;
     delete [] probs;

     if ( theLegendre != NULL )
     {
        for ( G4int i = 0 ; i < (nDiscrete2-nIso) ; i++ )
           if ( theLegendre[i] != NULL ) delete[] theLegendre[i]; 

        delete [] theLegendre;
     }

     if ( partials != 0 ) 
     {
        for ( G4int i = 0 ; i < nPartials ; i++ )
           { delete partials[i]; }

        delete [] partials;
     }

     delete [] actualMult;

     // delete theLevelEnergies;
     // delete theTransitionProbabilities;
     // delete thePhotonTransitionFraction;
// TKDB
     delete [] theLevelEnergies;
     delete [] theTransitionProbabilities;
     delete [] thePhotonTransitionFraction;
  }
  
  G4bool InitMean(std::ifstream & aDataFile);
    
  void InitAngular(std::ifstream & aDataFile);
  
  void InitEnergies(std::ifstream & aDataFile);
  
  void InitPartials(std::ifstream & aDataFile);
  
  G4ReactionProductVector * GetPhotons(G4double anEnergy);
  
  inline G4double GetTargetMass() {return targetMass;}
  
  inline G4bool NeedsCascade() {return repFlag==2;}
  
  inline G4double GetLevelEnergy() {return theBaseEnergy;}

private:

   G4int repFlag;  //representation as multiplicities or transition probability arrays.
   G4double targetMass;
   
   G4int nDiscrete;  //number of discrete photons 
   G4int * disType;  // discrete, or continuum photons
   G4double * energy;  // photon energies
   G4NeutronHPVector * theYield; // multiplicity as a function of neutron energy.
   G4NeutronHPVector theTotalXsec;
   G4NeutronHPVector * thePartialXsec;
   G4int * isPrimary;
  
   G4int isoFlag; // isotropic or not?
   G4int tabulationType;
   G4int nDiscrete2;
   G4int nIso;
   G4double * theShells;
   G4double * theGammas;
   G4int * nNeu;
   G4InterpolationManager theLegendreManager;
   G4NeutronHPLegendreTable ** theLegendre;
   G4NeutronHPAngularP ** theAngular;
   
   G4int * distribution; // not used for the moment.                                 
   G4int nPartials;
   G4NeutronHPVector *  probs; // probabilities for the partial distributions.
   G4NeutronHPPartial ** partials; // the partials, parallel to the above

   G4int * actualMult;
   
    // for transition prob arrays start
   G4int theInternalConversionFlag;
   G4int nGammaEnergies;
   G4double theBaseEnergy;
   G4double * theLevelEnergies;
   G4double * theTransitionProbabilities;
   G4double * thePhotonTransitionFraction;
    // for transition prob arrays end

   G4NeutronHPFastLegendre theLegend; // fast look-up for leg-integrals
   G4NeutronHPInterpolator theInt; // interpolation
};

#endif