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// $Id: G4Visible.cc,v 1.17 2006/11/07 11:53:16 allison Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// 
// John Allison  30th October 1996
// Base class for all things visible, i.e., which have Vis Attributes.

#include "G4Visible.hh"
#include "G4VisAttributes.hh"
#include "G4ios.hh"

G4Visible::G4Visible ():
  fpVisAttributes (0),
  fAllocatedVisAttributes (false)
{}

G4Visible::G4Visible (const G4Visible& visible){
  fAllocatedVisAttributes = visible.fAllocatedVisAttributes;
  if (fAllocatedVisAttributes)
    fpVisAttributes = new G4VisAttributes(visible.fpVisAttributes);
  else fpVisAttributes = visible.fpVisAttributes;
}

G4Visible::G4Visible (const G4VisAttributes* pVA):
  fpVisAttributes (pVA),
  fAllocatedVisAttributes (false)
{}

G4Visible::~G4Visible () {
  if (fAllocatedVisAttributes) delete fpVisAttributes;
}

G4Visible& G4Visible::operator= (const G4Visible& rhs) {
  fAllocatedVisAttributes = rhs.fAllocatedVisAttributes;
  if (fAllocatedVisAttributes)
    fpVisAttributes = new G4VisAttributes(rhs.fpVisAttributes);
  else fpVisAttributes = rhs.fpVisAttributes;
  return *this;
}

void G4Visible::SetVisAttributes (const G4VisAttributes& VA) {
  // Allocate G4VisAttributes on the heap in case the user specifies a
  // short-lived VA for a long-lived G4Visible.  Flag so that it can
  // be deleted in the destructor.
  // First delete any G4VisAttributes already on the heap...
  if (fAllocatedVisAttributes) delete fpVisAttributes;
  fpVisAttributes = new G4VisAttributes(VA);
  fAllocatedVisAttributes = true;
}


void G4Visible::SetVisAttributes (const G4VisAttributes* pVA) {
  // First delete any G4VisAttributes already on the heap...
  if (fAllocatedVisAttributes) delete fpVisAttributes;
  fpVisAttributes = pVA;
  fAllocatedVisAttributes = false;
}

G4bool G4Visible::operator != (const G4Visible& right) const {
  return *fpVisAttributes != *right.fpVisAttributes;
}

std::ostream& operator << (std::ostream& os, const G4Visible& v) {
  if (v.fpVisAttributes) return os << *(v.fpVisAttributes);
  else return os << "No Visualization Attributes";
}