OFFWriter.hh 4.1 KB
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/*===========================================================================*\
 *                                                                           *
 *                               OpenMesh                                    *
 *        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen         *
 *                           www.openmesh.org                                *
 *                                                                           *
 *---------------------------------------------------------------------------* 
 *                                                                           *
 *                                License                                    *
 *                                                                           *
 *  This library is free software; you can redistribute it and/or modify it  *
 *  under the terms of the GNU Lesser General Public License as published    *
 *  by the Free Software Foundation, version 2.1.                            *
 *                                                                           *
 *  This library is distributed in the hope that it will be useful, but      *
 *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
 *  Lesser General Public License for more details.                          *
 *                                                                           *
 *  You should have received a copy of the GNU Lesser General Public         *
 *  License along with this library; if not, write to the Free Software      *
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
 *                                                                           *
\*===========================================================================*/


//=============================================================================
//
//  Implements a writer module for OFF files
//
//=============================================================================


#ifndef __OFFWRITER_HH__
#define __OFFWRITER_HH__


//=== INCLUDES ================================================================


#include <stdio.h>
#include <string>
#include <fstream>

#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Utils/SingletonT.hh>
#include <OpenMesh/Core/IO/exporter/BaseExporter.hh>
#include <OpenMesh/Core/IO/writer/BaseWriter.hh>


//== NAMESPACES ===============================================================


namespace OpenMesh {
namespace IO {


//=== IMPLEMENTATION ==========================================================


/** 
    Implementation of the OFF format writer. This class is singleton'ed by 
    SingletonT to OFFWriter.

    By passing Options to the write function you can manipulate the writing behavoir.
    The following options can be set:

    Binary
    VertexNormal
    VertexColor
    VertexTexCoord
    FaceColor
    ColorAlpha

*/
class _OFFWriter_ : public BaseWriter
{
public:

  _OFFWriter_();

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  virtual ~_OFFWriter_() {};

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  std::string get_description() const { return "no description"; }
  std::string get_extensions() const  { return "off"; }

  bool write(const std::string&, BaseExporter&, Options) const;

  size_t binary_size(BaseExporter& _be, Options _opt) const;


protected:
  void writeValue(std::fstream& _out, int value) const;
  void writeValue(std::fstream& _out, unsigned int value) const;
  void writeValue(std::fstream& _out, float value) const;

  bool write_ascii(std::fstream& _in, BaseExporter&, Options) const;
  bool write_binary(std::fstream& _in, BaseExporter&, Options) const;
};


//== TYPE DEFINITION ==========================================================


/// Declare the single entity of the OFF writer.
extern _OFFWriter_  __OFFWriterInstance;
_OFFWriter_& OFFWriter();


//=============================================================================
} // namespace IO
} // namespace OpenMesh
//=============================================================================
#endif
//=============================================================================