vtkCollectionIterator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkCollectionIterator.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 vtkCollectionIterator_h
#define vtkCollectionIterator_h
 
#include "vtkCommonCoreModule.h" // For export macro
#include "vtkObject.h"
 
class vtkCollection;
class vtkCollectionElement;
 
class VTKCOMMONCORE_EXPORT vtkCollectionIterator : public vtkObject
{
public:
  vtkTypeMacro(vtkCollectionIterator, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkCollectionIterator* New();
 
 
  virtual void SetCollection(vtkCollection*);
  vtkGetObjectMacro(Collection, vtkCollection);
 
  void InitTraversal() { this->GoToFirstItem(); }
 
  void GoToFirstItem();
 
  void GoToNextItem();
 
  int IsDoneWithTraversal();
 
  vtkObject* GetCurrentObject();
 
protected:
  vtkCollectionIterator();
  ~vtkCollectionIterator() override;
 
  // The collection over which we are iterating.
  vtkCollection* Collection;
 
  // The current iterator position.
  vtkCollectionElement* Element;
 
  vtkObject* GetObjectInternal();
 
private:
  vtkCollectionIterator(const vtkCollectionIterator&) = delete;
  void operator=(const vtkCollectionIterator&) = delete;
};
 
#endif