// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4NavigationLevelRep.icc,v 1.4 2000/11/20 18:59:39 gcosmo Exp $
// GEANT4 tag $Name: geant4-03-00 $
//
//  1 October 1997 J.Apostolakis Initial version. 
//                        

// Constructors
//--------------

inline
G4NavigationLevelRep::G4NavigationLevelRep(G4VPhysicalVolume* pPhysVol,
				     const G4AffineTransform& afTransform,
				     EVolume            volTp,
				     G4int              repNo)
   :  sTransform(afTransform),
      sPhysicalVolumePtr(pPhysVol),
      sReplicaNo(repNo),
      sVolumeType(volTp),
      fCountRef(1) 
{
}

inline
G4NavigationLevelRep::G4NavigationLevelRep()
   :  sTransform(),
      sPhysicalVolumePtr(0),
      sReplicaNo(-1),
      sVolumeType(kReplica),
      fCountRef(1) 
{
}

inline
G4NavigationLevelRep::G4NavigationLevelRep(G4VPhysicalVolume* pPhysVol,
		     const G4AffineTransform& levelAbove,
		     const G4AffineTransform& relativeCurrent,
		           EVolume            volTp,
		           G4int              repNo )
   :  sPhysicalVolumePtr(pPhysVol),
      sReplicaNo(repNo),
      sVolumeType(volTp),
      fCountRef(1) 
{
      sTransform.InverseProduct( levelAbove, relativeCurrent );
}

inline
G4NavigationLevelRep::G4NavigationLevelRep(G4NavigationLevelRep& right)
   :  sTransform(right.sTransform), 
      sPhysicalVolumePtr(right.sPhysicalVolumePtr),
      sReplicaNo(right.sReplicaNo),
      sVolumeType(right.sVolumeType),
      fCountRef(1) 
{
}

// Destructor
//--------------

inline
G4NavigationLevelRep::~G4NavigationLevelRep()
{
#ifdef DEBUG_NAVIG_LEVEL
    if(fCountRef>0){ 
	G4Exception( " A G4NavigationLevelRep is being deleted that has a positive of reference counts (fCountRef > 0) " ); 
    } 
#endif
}

// Operators
// --------------

inline
G4NavigationLevelRep& 
G4NavigationLevelRep::operator=(const G4NavigationLevelRep &right)
{ 
  if (&right == this) return *this;

  if (&right)
  {
    sTransform =  right.sTransform;  
    sPhysicalVolumePtr = right.sPhysicalVolumePtr;
    sVolumeType = right.sVolumeType;
    sReplicaNo =  right.sReplicaNo;
    fCountRef = right.fCountRef;
  }

  return *this;
} 

inline
G4VPhysicalVolume*
G4NavigationLevelRep::GetPhysicalVolume()
{ 
      return sPhysicalVolumePtr; 
}

inline
const G4AffineTransform&
G4NavigationLevelRep::GetTransform() const 
{ 
      return sTransform; 
} 

#if 0
inline
G4AffineTransform& G4NavigationLevelRep::GetTransform()       
{ 
      return sTransform; 
} 
#endif

inline
const G4AffineTransform*
G4NavigationLevelRep::GetTransformPtr() const 
{ 
      return &sTransform; 
} 

inline
EVolume G4NavigationLevelRep::GetVolumeType() const 
{ 
  return sVolumeType; 
}

inline
G4int G4NavigationLevelRep::GetReplicaNo() const 
{ 
  return sReplicaNo; 
}

inline
void G4NavigationLevelRep::AddAReference() 
{
   fCountRef++; 
}

inline
G4bool G4NavigationLevelRep::RemoveAReference() 
{
   return( --fCountRef <= 0); 
}

extern G4Allocator<G4NavigationLevelRep> aNavigLevelRepAllocator;

// There is no provision that this class is subclassed.
// If it is subclassed & new data members are added then the
// following "new" & "delete" will fail and give errors. 
//
inline
void* G4NavigationLevelRep::operator new(size_t)
{
  return (void *) aNavigLevelRepAllocator.MallocSingle();
}

inline
void G4NavigationLevelRep::operator delete(void *aLevelRep)
{
  aNavigLevelRepAllocator.FreeSingle((G4NavigationLevelRep *) aLevelRep);
}