vtkTreeBFSIterator.h

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

  Program:   Visualization Toolkit
  Module:    vtkTreeBFSIterator.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 vtkTreeBFSIterator_h
#define vtkTreeBFSIterator_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkTreeIterator.h"

class vtkTreeBFSIteratorInternals;
class vtkIntArray;

class VTKCOMMONDATAMODEL_EXPORT vtkTreeBFSIterator : public vtkTreeIterator
{
public:
  static vtkTreeBFSIterator* New();
  vtkTypeMacro(vtkTreeBFSIterator, vtkTreeIterator);
  void PrintSelf(ostream& os, vtkIndent indent) override;

protected:
  vtkTreeBFSIterator();
  ~vtkTreeBFSIterator() override;

  void Initialize() override;
  vtkIdType NextInternal() override;

  vtkTreeBFSIteratorInternals* Internals;
  vtkIntArray* Color;

  enum ColorType
  {
    WHITE,
    GRAY,
    BLACK
  };

private:
  vtkTreeBFSIterator(const vtkTreeBFSIterator &) = delete;
  void operator=(const vtkTreeBFSIterator &) = delete;
};

#endif