dox/Imaging/vtkImagePadFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkImagePadFilter.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 __vtkImagePadFilter_h
#define __vtkImagePadFilter_h

#include "vtkThreadedImageAlgorithm.h"

class VTK_IMAGING_EXPORT vtkImagePadFilter : public vtkThreadedImageAlgorithm
{
public:
  static vtkImagePadFilter *New();
  vtkTypeMacro(vtkImagePadFilter,vtkThreadedImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetOutputWholeExtent(int extent[6]);
  void SetOutputWholeExtent(int minX, int maxX, int minY, int maxY, 
                            int minZ, int maxZ);
  void GetOutputWholeExtent(int extent[6]);
  int *GetOutputWholeExtent() {return this->OutputWholeExtent;}


  vtkSetMacro(OutputNumberOfScalarComponents, int);
  vtkGetMacro(OutputNumberOfScalarComponents, int);
  
protected:
  vtkImagePadFilter();
  ~vtkImagePadFilter() {};

  int OutputWholeExtent[6];
  int OutputNumberOfScalarComponents;

  virtual int RequestInformation (vtkInformation*,
                                  vtkInformationVector**,
                                  vtkInformationVector*);
  virtual int RequestUpdateExtent(vtkInformation*,
                                  vtkInformationVector**,
                                  vtkInformationVector*);

  virtual void ComputeInputUpdateExtent (int inExt[6], int outExt[6], 
                                         int wExt[6]);
  
private:
  vtkImagePadFilter(const vtkImagePadFilter&);  // Not implemented.
  void operator=(const vtkImagePadFilter&);  // Not implemented.
};

#endif