vtkStreamerBase.h

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// -*- c++ -*-
/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkTemporalStatistics.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 _vtkStreamerBase_h
#define _vtkStreamerBase_h
 
#include "vtkFiltersCoreModule.h" // For export macro
#include "vtkAlgorithm.h"
 
class VTKFILTERSCORE_EXPORT vtkStreamerBase : public vtkAlgorithm
{
public:
  vtkTypeMacro(vtkStreamerBase, vtkAlgorithm);
  virtual void PrintSelf(ostream &os, vtkIndent indent);
 
 
  virtual int ProcessRequest(vtkInformation*,
                             vtkInformationVector**,
                             vtkInformationVector*);
 
protected:
  vtkStreamerBase();
  ~vtkStreamerBase();
 
  virtual int RequestInformation(vtkInformation*,
                                 vtkInformationVector**,
                                 vtkInformationVector*)
  {
    return 1;
  }
 
 
  virtual int RequestUpdateExtent(vtkInformation*,
                                  vtkInformationVector**,
                                  vtkInformationVector*) = 0;
 
  virtual int RequestData(vtkInformation *request,
                          vtkInformationVector **inputVector,
                          vtkInformationVector *outputVector);
 
  // This method is called during each execution pass. Subclasses
  // should implement this to do actual work.
  virtual int ExecutePass(vtkInformationVector **inputVector,
                          vtkInformationVector *outputVector) = 0;
 
  // This method is called after streaming is completed. Subclasses
  // can override this method to perform cleanup.
  virtual int PostExecute(vtkInformationVector **,
                          vtkInformationVector *)
  {
    return 1;
  }
 
  unsigned int NumberOfPasses;
  unsigned int CurrentIndex;
 
private:
  vtkStreamerBase(const vtkStreamerBase &); // Not implemented.
  void operator=(const vtkStreamerBase &);        // Not implemented.
 
};
 
#endif //_vtkStreamerBase_h