G4ITReactionChange.cc

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// $Id: G4ITReactionChange.cc 64057 2012-10-30 15:04:49Z gcosmo $
//
// Author: Mathieu Karamitros (kara (AT) cenbg . in2p3 . fr) 
//
// History:
// -----------
// 10 Oct 2011 M.Karamitros created
//
// -------------------------------------------------------------------

#include "G4ITReactionChange.hh"

G4ITReactionChange::G4ITReactionChange():
    fSecondaries(0),
    fNumberOfSecondaries(0),
    fKillParents(false),
    fParticleChangeIsSet(false)
{
    //ctor
}

G4ITReactionChange::~G4ITReactionChange()
{
    //dtor
    delete fSecondaries;
    fSecondaries = 0 ;
}

// Should not be used
G4ITReactionChange::G4ITReactionChange(const G4ITReactionChange& /*other*/) :
    fSecondaries(0),
    fNumberOfSecondaries(0),
    fKillParents(false),
    fParticleChangeIsSet(false)
{
    //copy ctor
}

// should not be used
G4ITReactionChange& G4ITReactionChange::operator=(const G4ITReactionChange& rhs)
{
    if (this == &rhs) return *this; // handle self assignment
    //assignment operator
    return *this;
}

void G4ITReactionChange::Initialize(const G4Track& trackA,
                            const G4Track& trackB,
                            G4VParticleChange* particleChangeA,
                            G4VParticleChange* particleChangeB
                            )
{
    fParticleChange.clear();
    fParticleChange[&trackA] = particleChangeA;
    fParticleChange[&trackB] = particleChangeB;

    if(particleChangeA || particleChangeB)
    {
        G4bool test = particleChangeA && particleChangeB ;

        if(test == false)
        {
            G4ExceptionDescription exceptionDescription ;
            exceptionDescription << "If you give for one track a particleChange, ";
            exceptionDescription << "G4ITReactionChange is expecting that you give for both ";
            exceptionDescription << "reacting tracks a particleChange.";
            G4Exception("G4ITReactionChange::Initialize","ITReactionChange001",
                        FatalErrorInArgument,exceptionDescription);
        }

        fParticleChangeIsSet = true;

        fParticleChange[&trackA]->Initialize(trackA);
        fParticleChange[&trackB]->Initialize(trackB);;

    }

    fSecondaries = 0;
    fNumberOfSecondaries = 0;
    fKillParents = false;
}

void G4ITReactionChange::AddSecondary(G4Track* aTrack)
{
    if(fSecondaries==0) fSecondaries = new G4TrackFastVector();

    // add a secondary after size check
    if (G4TrackFastVectorSize > fNumberOfSecondaries)
    {
        fSecondaries->SetElement(fNumberOfSecondaries, aTrack);
        fNumberOfSecondaries++;
    }
    else
    {
        G4cerr << "G4ITReactionChange::AddSecondary() Warning  ";
        G4cerr << "fSecondaries is full !! " << G4endl;
        G4cerr << " The object will not be added in fSecondaries" << G4endl;
    }
}

void G4ITReactionChange::UpdateStepInfo(G4Step* stepA, G4Step* stepB)
{
    fParticleChange[stepA->GetTrack()]->UpdateStepForPostStep(stepA);
    fParticleChange[stepB->GetTrack()]->UpdateStepForPostStep(stepB);
}

G4VParticleChange* G4ITReactionChange::GetParticleChange(const G4Track* track)
{
    std::map<const G4Track*, G4VParticleChange*>::iterator it = fParticleChange.find(track);

    if(it == fParticleChange.end()) return 0;
    else return it ->second;
}

const G4Track* G4ITReactionChange::GetTrackA()
{
    std::map<const G4Track*, G4VParticleChange*>::iterator it = fParticleChange.begin();
    if(it != fParticleChange.end())
    {
        return it->first;
    }

    G4ExceptionDescription exceptionDescription ;
    exceptionDescription << "No track A found ! Have you initialized the ReactionChange ?";
    G4Exception("G4ITReactionChange::GetTrackA","ITReactionChange001",
                FatalErrorInArgument,exceptionDescription);
    return 0;
}

const G4Track* G4ITReactionChange::GetTrackB()
{
    std::map<const G4Track*, G4VParticleChange*>::iterator it = fParticleChange.begin();
    std::map<const G4Track*, G4VParticleChange*>::iterator next = it++;
    if(next == fParticleChange.end())
    {
        G4ExceptionDescription exceptionDescription ;
        exceptionDescription << "No track B found ! Have you initialized the ReactionChange ?";
        G4Exception("G4ITReactionChange::GetTrackB","ITReactionChange002",
                    FatalErrorInArgument,exceptionDescription);
    }

    return it->first;
}

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