OFFReader.hh

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


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


#ifndef __OFFREADER_HH__
#define __OFFREADER_HH__


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


#include <iosfwd>
#include <string>
#include <cstdio>

#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Utils/SingletonT.hh>
#include <OpenMesh/Core/IO/reader/BaseReader.hh>


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


namespace OpenMesh {
namespace IO {


//== FORWARDS =================================================================


class BaseImporter;


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


class OPENMESHDLLEXPORT _OFFReader_ : public BaseReader
{
public:

  _OFFReader_();

  virtual ~_OFFReader_() {};

  std::string get_description() const { return "Object File Format"; }
  std::string get_extensions()  const { return "off"; }
  std::string get_magic()       const { return "OFF"; }

  bool read(const std::string& _filename,
            BaseImporter& _bi,
            Options& _opt);

  bool can_u_read(const std::string& _filename) const;

  bool read(std::istream& _in, BaseImporter& _bi, Options& _opt );

private:

  bool can_u_read(std::istream& _is) const;

  bool read_ascii(std::istream& _in, BaseImporter& _bi, Options& _opt) const;
  bool read_binary(std::istream& _in, BaseImporter& _bi, Options& _opt, bool swap) const;

  void readValue(std::istream& _in, float& _value) const;
  void readValue(std::istream& _in, int& _value) const;
  void readValue(std::istream& _in, unsigned int& _value) const;

  int getColorType(std::string & _line, bool _texCoordsAvailable) const;

  //available options for reading
  mutable Options options_;
  //options that the user wants to read
  mutable Options userOptions_;
};


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


extern _OFFReader_  __OFFReaderInstance;
OPENMESHDLLEXPORT _OFFReader_& OFFReader();


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