src/OpenMesh/Core/IO/Options.hh

/*===========================================================================*\
 *                                                                           *
 *                               OpenMesh                                    *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
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/*===========================================================================*\
 *                                                                           *             
 *   $Revision: 137 $                                                         *
 *   $Date: 2009-06-04 10:46:29 +0200 (Do, 04. Jun 2009) $                   *
 *                                                                           *
\*===========================================================================*/


#ifndef OPENMESH_IO_OPTIONS_HH
#define OPENMESH_IO_OPTIONS_HH


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


// OpenMesh
#include <OpenMesh/Core/System/config.h>


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


namespace OpenMesh {
namespace IO   {


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




//-----------------------------------------------------------------------------

class Options
{
public:
  typedef int       enum_type;
  typedef enum_type value_type;
   
  enum Flag {
    Default        = 0x0000, 
    Binary         = 0x0001, 
    MSB            = 0x0002, 
    LSB            = 0x0004, 
    Swap           = 0x0006, 
    VertexNormal   = 0x0010, 
    VertexColor    = 0x0020, 
    VertexTexCoord = 0x0040, 
    FaceNormal     = 0x0100, 
    FaceColor      = 0x0200, 
    ColorAlpha     = 0x0400  
  };

public:

  Options() : flags_( Default )
  { }


  Options(const Options& _opt) : flags_(_opt.flags_)
  { }
   

  Options(Flag _flg) : flags_( _flg)
  { }

   
  Options(const value_type _flgs) : flags_( _flgs)
  { }

   
  ~Options()
  { }
   
  void cleanup(void)
  { flags_ = Default; }

  void clear(void)
  { flags_ = 0; }

  bool is_empty(void) const { return !flags_; }

public:
   



  Options& operator = ( const Options& _rhs )
  { flags_ = _rhs.flags_; return *this; }

  Options& operator = ( const value_type _rhs )
  { flags_ = _rhs; return *this; }


  


  Options& operator -= ( const value_type _rhs )
  { flags_ &= ~_rhs; return *this; }

  Options& unset( const value_type _rhs)
  { return (*this -= _rhs); }   


   


   
  Options& operator += ( const value_type _rhs )
  { flags_ |= _rhs; return *this; }

  Options& set( const value_type _rhs)
  { return (*this += _rhs); }


public:


  // Check if an option or several options are set.
  bool check(const value_type _rhs) const
  {
    return (flags_ & _rhs)==_rhs;
  }
   
  bool is_binary()           const { return check(Binary); }
  bool vertex_has_normal()   const { return check(VertexNormal); }
  bool vertex_has_color()    const { return check(VertexColor); }
  bool vertex_has_texcoord() const { return check(VertexTexCoord); }
  bool face_has_normal()     const { return check(FaceNormal); }
  bool face_has_color()      const { return check(FaceColor); }
  bool color_has_alpha()     const { return check(ColorAlpha); }


  bool operator == (const value_type _rhs) const
  { return flags_ == _rhs; }
   

  bool operator != (const value_type _rhs) const
  { return flags_ != _rhs; }
   

  operator value_type ()     const { return flags_; }
   
private:
   
  bool operator && (const value_type _rhs) const;
   
  value_type flags_;
};

//-----------------------------------------------------------------------------






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

---