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

  Program:   Visualization Toolkit
  Module:    vtkXGMLReader.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.
//-------------------------------------------------------------------------

// .NAME vtkXGMLReader - Reads XGML graph files.
// This reader is developed for a simple graph file format based
// loosely on the "GML" notation.  This implementation is based
// heavily on the vtkTulipReader class that forms part of the 
// Titan toolkit.

// .SECTION Thanks
// Thanks to David Duke from the University of Leeds for providing this 
// implementation.

#ifndef _vtkXGMLReader_h
#define _vtkXGMLReader_h

#include "vtkUndirectedGraphAlgorithm.h"

class VTK_INFOVIS_EXPORT vtkXGMLReader : public vtkUndirectedGraphAlgorithm
{
public:
  static vtkXGMLReader *New();
  vtkTypeMacro(vtkXGMLReader, vtkUndirectedGraphAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // The XGML file name.
  vtkGetStringMacro(FileName);
  vtkSetStringMacro(FileName);

protected:
  vtkXGMLReader();
  ~vtkXGMLReader();

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

private:
  char* FileName;

  vtkXGMLReader(const vtkXGMLReader&);  // Not implemented.
  void operator=(const vtkXGMLReader&);  // Not implemented.
};

#endif // _vtkXGMLReader_h