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

  Program:   Visualization Toolkit
  Module:    vtkDataSetCellIterator.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   vtkDataSetCellIterator
 * @brief   Implementation of vtkCellIterator using
 * vtkDataSet API.
 */

#ifndef vtkDataSetCellIterator_h
#define vtkDataSetCellIterator_h

#include "vtkCellIterator.h"
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkSmartPointer.h"          // For vtkSmartPointer

class vtkDataSet;

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

  bool IsDoneWithTraversal() override;
  vtkIdType GetCellId() override;

protected:
  vtkDataSetCellIterator();
  ~vtkDataSetCellIterator() override;

  void ResetToFirstCell() override;
  void IncrementToNextCell() override;
  void FetchCellType() override;
  void FetchPointIds() override;
  void FetchPoints() override;

  friend class vtkDataSet;
  void SetDataSet(vtkDataSet* ds);

  vtkSmartPointer<vtkDataSet> DataSet;
  vtkIdType CellId;

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

#endif // vtkDataSetCellIterator_h