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/*=========================================================================
Program: Visualization Toolkit
Module: vtkInformationIterator.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkInformationIterator.h"
#include "vtkInformation.h"
#include "vtkInformationInternals.h"
#include "vtkInformationKey.h"
#include "vtkObjectFactory.h"
vtkStandardNewMacro(vtkInformationIterator);
class vtkInformationIteratorInternals
{
public:
vtkInformationInternals::MapType::iterator Iterator;
};
//----------------------------------------------------------------------------
vtkInformationIterator::vtkInformationIterator()
{
this->Internal = new vtkInformationIteratorInternals;
this->Information = 0;
this->ReferenceIsWeak = false;
}
//----------------------------------------------------------------------------
vtkInformationIterator::~vtkInformationIterator()
{
if (this->ReferenceIsWeak)
{
this->Information = 0;
}
if (this->Information)
{
this->Information->Delete();
}
delete this->Internal;
}
//----------------------------------------------------------------------------
void vtkInformationIterator::SetInformation(vtkInformation* inf)
{
if (this->ReferenceIsWeak)
{
this->Information = 0;
}
this->ReferenceIsWeak = false;
vtkSetObjectBodyMacro(Information, vtkInformation, inf);
}
//----------------------------------------------------------------------------
void vtkInformationIterator::SetInformationWeak(vtkInformation* inf)
{
if (!this->ReferenceIsWeak)
{
this->SetInformation(0);
}
this->ReferenceIsWeak = true;
if (this->Information != inf)
{
this->Information = inf;
this->Modified();
}
}
//----------------------------------------------------------------------------
void vtkInformationIterator::GoToFirstItem()
{
if (!this->Information)
{
vtkErrorMacro("No information has been set.");
return;
}
this->Internal->Iterator = this->Information->Internal->Map.begin();
}
//----------------------------------------------------------------------------
void vtkInformationIterator::GoToNextItem()
{
if (!this->Information)
{
vtkErrorMacro("No information has been set.");
return;
}
++this->Internal->Iterator;
}
//----------------------------------------------------------------------------
int vtkInformationIterator::IsDoneWithTraversal()
{
if (!this->Information)
{
vtkErrorMacro("No information has been set.");
return 1;
}
if(this->Internal->Iterator == this->Information->Internal->Map.end())
{
return 1;
}
return 0;
}
//----------------------------------------------------------------------------
vtkInformationKey* vtkInformationIterator::GetCurrentKey()
{
if (this->IsDoneWithTraversal())
{
return 0;
}
return this->Internal->Iterator->first;
}
//----------------------------------------------------------------------------
void vtkInformationIterator::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Information: ";
if (this->Information)
{
os << endl;
this->Information->PrintSelf(os, indent.GetNextIndent());
}
else
{
os << "(none)" << endl;
}
}
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