/* ========================================================================= *
 *                                                                           *
 *                               OpenMesh                                    *
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
 *                                                                           *
 * ========================================================================= */

/*===========================================================================*\
 *                                                                           *
 *   $Revision$                                                         *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/


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


#ifndef __OFFWRITER_HH__
#define __OFFWRITER_HH__


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

#include <string>
#include <ostream>

#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 OPENMESHDLLEXPORT _OFFWriter_ : public BaseWriter
{
public:

  _OFFWriter_();

  virtual ~_OFFWriter_() {};

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

  bool write(const std::string&, BaseExporter&, Options, std::streamsize _precision = 6) const;

  bool write(std::ostream&, BaseExporter&, Options, std::streamsize _precision = 6) const;

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


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

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


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


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


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