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// $Id: G4FTFBuilder.cc,v 1.3 2009/12/29 17:54:25 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//
//---------------------------------------------------------------------------
//
// ClassName:  G4FTFBuilder
//
// Author: 28 June 2009 V.Ivanchenko
//
// Modified:
//
//----------------------------------------------------------------------------
//

#include "G4FTFBuilder.hh"
#include "G4FTFModel.hh"
#include "G4ExcitedStringDecay.hh"
#include "G4TheoFSGenerator.hh"
#include "G4QStringChipsParticleLevelInterface.hh"
#include "G4GeneratorPrecompoundInterface.hh"
#include "G4LundStringFragmentation.hh"
#include "G4BinaryCascade.hh"
#include "G4PreCompoundModel.hh"


G4FTFBuilder::G4FTFBuilder(const G4String& aName, G4PreCompoundModel* p) 
  : G4VHadronModelBuilder(aName), thePreCompound(p)
{}

G4FTFBuilder::~G4FTFBuilder() 
{
  delete theStringDecay;
}                                     

G4HadronicInteraction* G4FTFBuilder::BuildModel()
{
  G4TheoFSGenerator* theFTFModel = new G4TheoFSGenerator(GetName());
  theStringModel  = new G4FTFModel();
  theStringDecay  = new G4ExcitedStringDecay(new G4LundStringFragmentation());
  theStringModel->SetFragmentationModel(theStringDecay);
  theFTFModel->SetHighEnergyGenerator(theStringModel);

  if(!thePreCompound) {
    thePreCompound = new G4PreCompoundModel(new G4ExcitationHandler());
  }

  if(GetName() == "FTFC") {
    theFTFModel->SetTransport(new G4QStringChipsParticleLevelInterface());

  } else if(GetName() == "FTFB") {
    G4BinaryCascade* bic = new G4BinaryCascade();
    bic->SetDeExcitation(thePreCompound);
    theFTFModel->SetTransport(bic);

  } else {
    G4GeneratorPrecompoundInterface* pint = new G4GeneratorPrecompoundInterface();
    pint->SetDeExcitation(thePreCompound);
    theFTFModel->SetTransport(pint);
  }

  return theFTFModel;
}