vtkDIMACSGraphReader.h

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

  Program:   Visualization Toolkit
  Module:    vtkDIMACSGraphReader.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 (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

#ifndef vtkDIMACSGraphReader_h
#define vtkDIMACSGraphReader_h

#include "vtkIOInfovisModule.h" // For export macro
#include "vtkGraphAlgorithm.h"
#include "vtkStdString.h" // For string API

class VTKIOINFOVIS_EXPORT vtkDIMACSGraphReader : public vtkGraphAlgorithm
{

public:

  static vtkDIMACSGraphReader *New();
  vtkTypeMacro(vtkDIMACSGraphReader, vtkGraphAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkGetStringMacro(FileName);
  vtkSetStringMacro(FileName);


  vtkGetStringMacro(VertexAttributeArrayName);
  vtkSetStringMacro(VertexAttributeArrayName);


  vtkGetStringMacro(EdgeAttributeArrayName);
  vtkSetStringMacro(EdgeAttributeArrayName);

protected:

  vtkDIMACSGraphReader();
  ~vtkDIMACSGraphReader() override;

  int RequestData(vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *) override;

  int buildGenericGraph(vtkGraph     * output,
                        vtkStdString & defaultVertexAttrArrayName,
                        vtkStdString & defaultEdgeAttrArrayName);

  int buildColoringGraph(vtkGraph * output);
  int buildMaxflowGraph(vtkGraph * output);

  int RequestDataObject(vtkInformation*,
                                vtkInformationVector** inputVector,
                                vtkInformationVector* outputVector) override;

  int ReadGraphMetaData();

private:

  bool   fileOk;
  bool   Directed;
  char * FileName;
  char * VertexAttributeArrayName;
  char * EdgeAttributeArrayName;

  int numVerts;
  int numEdges;
  vtkStdString dimacsProblemStr;

  vtkDIMACSGraphReader(const vtkDIMACSGraphReader&) = delete;
  void operator=(const vtkDIMACSGraphReader&) = delete;
};

#endif // vtkDIMACSGraphReader_h