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// $Id: G4NavigationLevel.cc,v 1.4 2006/06/29 18:58:04 gunter Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
// 30.09.97 J.Apostolakis Initial version. 
//                    
// ----------------------------------------------------------------------

#include "G4NavigationLevel.hh"

G4Allocator<G4NavigationLevel> aNavigationLevelAllocator;

G4NavigationLevel::G4NavigationLevel( G4VPhysicalVolume* pPhysVol,
                                const G4AffineTransform& afTransform,
                                      EVolume            volTp,
                                      G4int              repNo )
{
  fLevelRep = new G4NavigationLevelRep( pPhysVol, afTransform, volTp, repNo );
}

G4NavigationLevel::G4NavigationLevel( G4VPhysicalVolume* pPhysVol,
                                const G4AffineTransform& levelAbove,
                                const G4AffineTransform& relativeCurrent,
                                      EVolume            volTp,
                                      G4int              repNo )
{
  fLevelRep = new G4NavigationLevelRep( pPhysVol, 
                                        levelAbove, 
                                        relativeCurrent, 
                                        volTp, 
                                        repNo );
}

G4NavigationLevel::G4NavigationLevel()
{
  fLevelRep = new G4NavigationLevelRep();
}

G4NavigationLevel::G4NavigationLevel(const G4NavigationLevel& right)
  : fLevelRep( right.fLevelRep )
{
  fLevelRep->AddAReference(); 
}

G4NavigationLevel::~G4NavigationLevel()
{
  if( fLevelRep->RemoveAReference() )
    delete fLevelRep; 
}

G4NavigationLevel& G4NavigationLevel::operator=(const G4NavigationLevel &right)
{ 
  if ( &right != this )
  {
    right.fLevelRep->AddAReference(); 
    if( fLevelRep->RemoveAReference() )
      delete fLevelRep; 
    fLevelRep = right.fLevelRep;
  }
  return *this;
}