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

  Program:   Visualization Toolkit
  Module:    vtkGeoJSONWriter.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 vtkGeoJSONWriter_h
#define vtkGeoJSONWriter_h

#include "vtkIOGeoJSONModule.h" // For export macro
#include "vtkWriter.h"

class vtkLookupTable;

class VTKIOGEOJSON_EXPORT vtkGeoJSONWriter : public vtkWriter
{
public:
  static vtkGeoJSONWriter* New();
  virtual void PrintSelf( ostream& os, vtkIndent indent );
  vtkTypeMacro(vtkGeoJSONWriter,vtkWriter);


  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);


  vtkSetMacro(WriteToOutputString,bool);
  vtkGetMacro(WriteToOutputString,bool);
  vtkBooleanMacro(WriteToOutputString,bool);


  vtkGetMacro(OutputStringLength, int);
  vtkGetStringMacro(OutputString);
  unsigned char *GetBinaryOutputString()
    {
    return reinterpret_cast<unsigned char *>(this->OutputString);
    }


  vtkSetMacro(ScalarFormat,int);
  vtkGetMacro(ScalarFormat,int);


  void SetLookupTable(vtkLookupTable *lut);
  vtkGetObjectMacro(LookupTable, vtkLookupTable);

  vtkStdString GetOutputStdString();

  char *RegisterAndGetOutputString();

protected:
  vtkGeoJSONWriter();
  virtual ~vtkGeoJSONWriter();

  // Only accepts vtkPolyData
  virtual int FillInputPortInformation(int port, vtkInformation *info);

  // Implementation of Write()
  void WriteData();

  // Helper for Write that writes attributes out
  void WriteScalar(vtkDataArray *da, vtkIdType ptId);
  vtkLookupTable *LookupTable;

  bool WriteToOutputString;
  char *OutputString;
  int OutputStringLength;

  int ScalarFormat;

  // Internal helpers
  ostream *OpenFile();
  void ConditionalComma(vtkIdType, vtkIdType);
  void CloseFile(ostream *);
  class Internals;
  Internals *WriterHelper;
  char* FileName;

private:
  vtkGeoJSONWriter(const vtkGeoJSONWriter&);  // Not implemented.
  void operator=(const vtkGeoJSONWriter&);       // Not implemented.
};

#endif // vtkGeoJSONWriter_h