G4ITBox.cc

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// $Id: G4ITBox.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 "G4ITBox.hh"

G4ITBox::G4ITBox() : fNbIT(0), fpFirstIT(0), fpLastIT(0), fpPreviousBox(0), fpNextBox(0)
{;}

G4ITBox::~G4ITBox()
{
    if( fNbIT != 0 )
    {
        G4IT * aIT = fpFirstIT;
        G4IT * nextIT;

        while( aIT != 0 )
        {
            nextIT = aIT->GetNext();
            delete aIT;
            aIT = nextIT;
        }
    }

    if(fpPreviousBox)    fpPreviousBox->SetNextBox(fpNextBox) ;
    if(fpNextBox)        fpNextBox->SetPreviousBox(fpPreviousBox);
}

const G4ITBox & G4ITBox::operator=(const G4ITBox &right)
{
    fNbIT = right.fNbIT;
    fpFirstIT = right.fpFirstIT;
    fpLastIT = right.fpLastIT;
    fpPreviousBox = 0;
    fpNextBox = 0;
    return *this;
}

void G4ITBox::Push( G4IT * aIT )
{
    if( fNbIT == 0 )
    {
        aIT->SetPrevious( 0 );
        fpFirstIT = aIT;
    }
    else
    {
        fpLastIT->SetNext( aIT );
        aIT->SetPrevious( fpLastIT );
    }
    fpLastIT = aIT;
    fNbIT++;
    aIT->SetITBox(this);
}

void G4ITBox::Extract( G4IT * aStackedIT )
{
    if( aStackedIT == fpFirstIT )
    {
        fpFirstIT = aStackedIT->GetNext();
    }
    else  if( aStackedIT == fpLastIT )
    {
        fpLastIT = aStackedIT->GetPrevious();

    }

    if( aStackedIT->GetNext())
        aStackedIT->GetNext()->SetPrevious(aStackedIT->GetPrevious());
    if( aStackedIT->GetPrevious())
        aStackedIT->GetPrevious()->SetNext(aStackedIT->GetNext());

    aStackedIT->SetNext(0);
    aStackedIT->SetPrevious(0);
    aStackedIT->SetITBox(0);
    fNbIT--;
}

G4IT* G4ITBox::FindIT(const G4Track& track)
{
    if( fNbIT == 0 ) return 0;

    G4IT * temp = fpLastIT;
    G4bool find = false;

    while(find == false && temp != 0)
    {
        if(temp-> GetTrack() == &track)
        {
            find = true;
            break;
        }
        temp = temp->GetPrevious();
    }

    return temp;
}

const G4IT* G4ITBox::FindIT(const G4Track& track) const
{
    if( fNbIT == 0 ) return 0;

    const G4IT * temp = fpLastIT;
    G4bool find = false;

    while(find == false && temp != 0)
    {
        if(temp-> GetTrack() == &track)
        {
            find = true;
            break;
        }
        temp = temp->GetPrevious();
    }

    return temp;
}

void G4ITBox::TransferTo(G4ITBox * aStack)
{
    G4IT * ITToTransfer = fpFirstIT;
    while(fNbIT)
    {
        Extract(ITToTransfer);
        aStack->Push(ITToTransfer);
        ITToTransfer = ITToTransfer->GetNext();
    }
}