dox/Parallel/vtkPieceRequestFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkPieceRequestFilter.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 __vtkPieceRequestFilter_h
#define __vtkPieceRequestFilter_h

#include "vtkAlgorithm.h"

class vtkDataObject;

class VTK_PARALLEL_EXPORT vtkPieceRequestFilter : public vtkAlgorithm
{
public:
  static vtkPieceRequestFilter *New();
  vtkTypeMacro(vtkPieceRequestFilter,vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetClampMacro(NumberOfPieces, int, 0, VTK_INT_MAX);
  vtkGetMacro(NumberOfPieces, int);


  vtkSetClampMacro(Piece, int, 0, VTK_INT_MAX);
  vtkGetMacro(Piece, int);


  vtkDataObject* GetOutput();
  vtkDataObject* GetOutput(int);


  void SetInput(vtkDataObject*);
  void SetInput(int, vtkDataObject*);


  virtual int ProcessRequest(vtkInformation* request, 
                             vtkInformationVector** inputVector,
                             vtkInformationVector* outputVector);

protected:
  vtkPieceRequestFilter();
  ~vtkPieceRequestFilter() {};

  virtual int RequestDataObject(vtkInformation* request, 
                                vtkInformationVector** inputVector, 
                                vtkInformationVector* outputVector);
  
  virtual int RequestData(vtkInformation*, 
                          vtkInformationVector**, 
                          vtkInformationVector*);
  
  virtual int RequestUpdateExtent(vtkInformation*,
                                  vtkInformationVector**,
                                  vtkInformationVector*);

  virtual int FillOutputPortInformation(int port, vtkInformation* info);
  virtual int FillInputPortInformation(int port, vtkInformation* info);

  int NumberOfPieces;
  int Piece;

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

#endif