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C++

/*=========================================================================
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.
=========================================================================*/
/**
* @class vtkTreeBFSIterator
* @brief breadth first search iterator through a vtkTree
*
*
* vtkTreeBFSIterator performs a breadth first search traversal of a tree.
*
* After setting up the iterator, the normal mode of operation is to
* set up a <code>while(iter->HasNext())</code> loop, with the statement
* <code>vtkIdType vertex = iter->Next()</code> inside the loop.
*
* @par Thanks:
* Thanks to David Doria for submitting this class.
*/
#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