vtkDirectedGraphAlgorithm.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkDirectedGraphAlgorithm.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.
 
=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkDirectedGraphAlgorithm_h
#define vtkDirectedGraphAlgorithm_h
 
#include "vtkAlgorithm.h"
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkDirectedGraph.h"              // makes things a bit easier
 
class vtkDataSet;
 
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkDirectedGraphAlgorithm : public vtkAlgorithm
{
public:
  static vtkDirectedGraphAlgorithm* New();
  vtkTypeMacro(vtkDirectedGraphAlgorithm, vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  vtkTypeBool ProcessRequest(
    vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  vtkDirectedGraph* GetOutput() { return this->GetOutput(0); }
  vtkDirectedGraph* GetOutput(int index);
 
  void SetInputData(vtkDataObject* obj) { this->SetInputData(0, obj); }
  void SetInputData(int index, vtkDataObject* obj);
 
protected:
  vtkDirectedGraphAlgorithm();
  ~vtkDirectedGraphAlgorithm() override;
 
  // convenience method
  virtual int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);
 
  virtual int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector);
 
  virtual int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
 
  // see algorithm for more info
  int FillOutputPortInformation(int port, vtkInformation* info) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
private:
  vtkDirectedGraphAlgorithm(const vtkDirectedGraphAlgorithm&) = delete;
  void operator=(const vtkDirectedGraphAlgorithm&) = delete;
};
 
#endif