vtkDataObjectAlgorithm.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkDataObjectAlgorithm.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 vtkDataObjectAlgorithm_h
#define vtkDataObjectAlgorithm_h
 
#include "vtkAlgorithm.h"
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkDataObject.h"                 // makes things a bit easier
 
class vtkDataSet;
class vtkDataObject;
 
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkDataObjectAlgorithm : public vtkAlgorithm
{
public:
  static vtkDataObjectAlgorithm* New();
  vtkTypeMacro(vtkDataObjectAlgorithm, vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkDataObject* GetOutput();
  vtkDataObject* GetOutput(int);
  virtual void SetOutput(vtkDataObject* d);
 
  vtkTypeBool ProcessRequest(
    vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  // this method is not recommended for use, but lots of old style filters
  // use it
  vtkDataObject* GetInput();
  vtkDataObject* GetInput(int port);
 
 
  void SetInputData(vtkDataObject*);
  void SetInputData(int, vtkDataObject*);
 
 
  void AddInputData(vtkDataObject*);
  void AddInputData(int, vtkDataObject*);
 
protected:
  vtkDataObjectAlgorithm();
  ~vtkDataObjectAlgorithm() override;
 
  // convenience method
  virtual int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);
 
  virtual int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  }
 
  virtual int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  }
 
  virtual int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  }
 
  // see algorithm for more info
  int FillOutputPortInformation(int port, vtkInformation* info) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  static bool SetOutputDataObject(
    int dataType, vtkInformation* outputInformation, bool exact = false);
 
private:
  vtkDataObjectAlgorithm(const vtkDataObjectAlgorithm&) = delete;
  void operator=(const vtkDataObjectAlgorithm&) = delete;
};
 
#endif