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

Program:   Visualization Toolkit
Module:    vtkFacetWriter.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.

=========================================================================*/
/**
 * @class   vtkFacetWriter
 * @brief   reads a dataset in Facet format
 *
 * vtkFacetWriter creates an unstructured grid dataset. It reads ASCII files
 * stored in Facet format
 *
 * The facet format looks like this:
 * FACET FILE ...
 * nparts
 * Part 1 name
 * 0
 * npoints 0 0
 * p1x p1y p1z
 * p2x p2y p2z
 * ...
 * 1
 * Part 1 name
 * ncells npointspercell
 * p1c1 p2c1 p3c1 ... pnc1 materialnum partnum
 * p1c2 p2c2 p3c2 ... pnc2 materialnum partnum
 * ...
*/

#ifndef vtkFacetWriter_h
#define vtkFacetWriter_h

#include "vtkIOGeometryModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"

class vtkInformation;

class VTKIOGEOMETRY_EXPORT vtkFacetWriter : public vtkPolyDataAlgorithm
{
public:
  static vtkFacetWriter *New();
  vtkTypeMacro(vtkFacetWriter,vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  //@{
  /**
   * Specify file name of Facet datafile to read
   */
  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);
  //@}

  /**
   * Write data
   */
  void Write();

  void WriteToStream(ostream* ost);

protected:
  vtkFacetWriter();
  ~vtkFacetWriter() override;

  // This is called by the superclass.
  // This is the method you should override.
  int RequestData(vtkInformation *request,
                           vtkInformationVector** inputVector,
                           vtkInformationVector* outputVector) override;

  int FillInputPortInformation(int, vtkInformation *) override;

  int WriteDataToStream(ostream* ost, vtkPolyData* data);

  char *FileName;
  ostream *OutputStream;

private:
  vtkFacetWriter(const vtkFacetWriter&) VTK_DELETE_FUNCTION;
  void operator=(const vtkFacetWriter&) VTK_DELETE_FUNCTION;
};

#endif

