vtkInformationIterator.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkInformationIterator.h

  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.

=========================================================================*/
#ifndef vtkInformationIterator_h
#define vtkInformationIterator_h

#include "vtkCommonCoreModule.h" // For export macro
#include "vtkObject.h"

class vtkInformation;
class vtkInformationKey;
class vtkInformationIteratorInternals;

class VTKCOMMONCORE_EXPORT vtkInformationIterator : public vtkObject
{
public:
  static vtkInformationIterator *New();
  vtkTypeMacro(vtkInformationIterator,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetInformation(vtkInformation*);
  vtkGetObjectMacro(Information, vtkInformation);

  void SetInformationWeak(vtkInformation*);

  void InitTraversal() { this->GoToFirstItem(); }

  virtual void GoToFirstItem();

  virtual void GoToNextItem();

  virtual int IsDoneWithTraversal();

  virtual vtkInformationKey* GetCurrentKey();

protected:
  vtkInformationIterator();
  ~vtkInformationIterator();

  vtkInformation* Information;
  vtkInformationIteratorInternals* Internal;

  bool ReferenceIsWeak;

private:
  vtkInformationIterator(const vtkInformationIterator&);  // Not implemented.
  void operator=(const vtkInformationIterator&);  // Not implemented.
};

#endif