dox/Filtering/vtkTreeBFSIterator.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkTreeBFSIterator.h,v $

  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 "vtkObject.h"

class vtkTree;
class vtkTreeBFSIteratorInternals;
class vtkIntArray;
class vtkIdList;

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

  //BTX
  enum ModeType
    {
    DISCOVER,
    FINISH
    };
  //ETX

  void SetTree(vtkTree* graph);


  void SetMode(int mode);
  vtkGetMacro(Mode, int);


  void SetStartVertex(vtkIdType vertex);
  vtkGetMacro(StartVertex, vtkIdType);

  vtkIdType Next();

  bool HasNext();

protected:
  vtkTreeBFSIterator();
  ~vtkTreeBFSIterator();

  void Initialize();
  vtkIdType NextInternal();

  vtkTree* Tree;
  int Mode;
  vtkIdType StartVertex;
  vtkIdType CurRoot;
  vtkTreeBFSIteratorInternals* Internals;
  vtkIntArray* Color;
  vtkIdType NextId;

  //BTX
  enum ColorType
    {
    WHITE,
    GRAY,
    BLACK
    };
  //ETX

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

#endif

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