Traits.hh

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//=============================================================================
//
//  CLASS Traits
//
//=============================================================================
 
#ifndef OPENMESH_TRAITS_HH
#define OPENMESH_TRAITS_HH
 
 
//== INCLUDES =================================================================
 
 
#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Geometry/VectorT.hh>
#include <OpenMesh/Core/Mesh/Attributes.hh>
#include <OpenMesh/Core/Mesh/Handles.hh>
 
 
//== NAMESPACES ===============================================================
 
 
namespace OpenMesh {
 
 
//== CLASS DEFINITION =========================================================
 
 
#define VertexAttributes(_i) enum { VertexAttributes = _i }
 
#define HalfedgeAttributes(_i) enum { HalfedgeAttributes = _i }
 
#define EdgeAttributes(_i) enum { EdgeAttributes = _i }
 
#define FaceAttributes(_i) enum { FaceAttributes = _i }
 
#define VertexTraits \
  template <class Base, class Refs> struct VertexT : public Base
 
#define HalfedgeTraits \
  template <class Base, class Refs> struct HalfedgeT : public Base
 
#define EdgeTraits \
  template <class Base, class Refs> struct EdgeT : public Base
 
#define FaceTraits \
  template <class Base, class Refs> struct FaceT : public Base
 
 
 
//== CLASS DEFINITION =========================================================
 
 
struct DefaultTraits
{
  typedef Vec3f  Point;
 
  typedef Vec3f  Normal;
 
  typedef float  TexCoord1D;
  typedef Vec2f  TexCoord2D;
  typedef Vec3f  TexCoord3D;
 
  typedef int TextureIndex;
 
  typedef Vec3uc Color;
 
#ifndef DOXY_IGNORE_THIS
  VertexTraits    {};
  HalfedgeTraits  {};
  EdgeTraits      {};
  FaceTraits      {};
#endif
 
  VertexAttributes(0);
  HalfedgeAttributes(Attributes::PrevHalfedge);
  EdgeAttributes(0);
  FaceAttributes(0);
};
 
struct DefaultTraitsDouble : public DefaultTraits
{
  typedef OpenMesh::Vec3d Point;
  typedef OpenMesh::Vec3d Normal;
  typedef OpenMesh::Vec4f Color;
};
 
 
//== CLASS DEFINITION =========================================================
 
 
template <class _Traits1, class _Traits2> struct MergeTraits
{
#ifndef DOXY_IGNORE_THIS
  struct Result
  {
    // Mipspro needs this (strange) typedef
    typedef _Traits1  T1;
    typedef _Traits2  T2;
 
 
    VertexAttributes   ( T1::VertexAttributes   | T2::VertexAttributes   );
    HalfedgeAttributes ( T1::HalfedgeAttributes | T2::HalfedgeAttributes );
    EdgeAttributes     ( T1::EdgeAttributes     | T2::EdgeAttributes     );
    FaceAttributes     ( T1::FaceAttributes     | T2::FaceAttributes     );
 
 
    typedef typename T1::Point    Point;
    typedef typename T1::Normal   Normal;
    typedef typename T1::Color    Color;
    typedef typename T1::TexCoord TexCoord;
 
    template <class Base, class Refs> class VertexT :
      public T1::template VertexT<
      typename T2::template VertexT<Base, Refs>, Refs>
    {};
 
    template <class Base, class Refs> class HalfedgeT :
      public T1::template HalfedgeT<
      typename T2::template HalfedgeT<Base, Refs>, Refs>
    {};
 
 
    template <class Base, class Refs> class EdgeT :
      public T1::template EdgeT<
      typename T2::template EdgeT<Base, Refs>, Refs>
    {};
 
 
    template <class Base, class Refs> class FaceT :
      public T1::template FaceT<
      typename T2::template FaceT<Base, Refs>, Refs>
    {};
  };
#endif
};
 
 
#define OM_Merge_Traits(_S1, _S2, _D) \
  typedef OpenMesh::MergeTraits<_S1, _S2>::Result _D;
 
 
#define OM_Merge_Traits_In_Template(_S1, _S2, _D) \
  typedef typename OpenMesh::MergeTraits<_S1, _S2>::Result _D;
 
 
//=============================================================================
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_TRAITS_HH defined
//=============================================================================