/*===========================================================================*\
 *                                                                           *
 *                               OpenMesh                                    *
 *      Copyright (C) 2001-2012 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openmesh.org                                *
 *                                                                           *
 *---------------------------------------------------------------------------* 
 *  This file is part of OpenMesh.                                           *
 *                                                                           *
 *  OpenMesh 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, either version 3 of           *
 *  the License, or (at your option) any later version with the              *
 *  following exceptions:                                                    *
 *                                                                           *
 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
 *                                                                           *
 *  OpenMesh 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 LesserGeneral Public          *
 *  License along with OpenMesh.  If not,                                    *
 *  see <http://www.gnu.org/licenses/>.                                      *
 *                                                                           *
\*===========================================================================*/ 

/*===========================================================================*\
 *                                                                           *             
 *   $Revision: 736 $                                                         *
 *   $Date: 2012-10-08 09:30:49 +0200 (Mo, 08 Okt 2012) $                   *
 *                                                                           *
\*===========================================================================*/

#ifndef OPENMESH_MESH_ITEMS_HH
#define OPENMESH_MESH_ITEMS_HH


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


#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Utils/GenProg.hh>
#include <OpenMesh/Core/Utils/vector_traits.hh>
#include <OpenMesh/Core/Mesh/Handles.hh>


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


namespace OpenMesh {


//== CLASS DEFINITION =========================================================

/// Definition of the mesh entities (items).
template <class Traits, bool IsTriMesh>
struct FinalMeshItemsT
{
  //--- build Refs structure ---
#ifndef DOXY_IGNORE_THIS
  struct Refs
  {
    typedef typename Traits::Point            Point;
    typedef typename vector_traits<Point>::value_type Scalar;

    typedef typename Traits::Normal           Normal;
    typedef typename Traits::Color            Color;
    typedef typename Traits::TexCoord1D       TexCoord1D;
    typedef typename Traits::TexCoord2D       TexCoord2D;
    typedef typename Traits::TexCoord3D       TexCoord3D;
    typedef typename Traits::TextureIndex     TextureIndex;
    typedef OpenMesh::VertexHandle            VertexHandle;
    typedef OpenMesh::FaceHandle              FaceHandle;
    typedef OpenMesh::EdgeHandle              EdgeHandle;
    typedef OpenMesh::HalfedgeHandle          HalfedgeHandle;
  };
#endif
  //--- export Refs types ---
  typedef typename Refs::Point           Point;
  typedef typename Refs::Scalar          Scalar;
  typedef typename Refs::Normal          Normal;
  typedef typename Refs::Color           Color;
  typedef typename Refs::TexCoord1D      TexCoord1D;
  typedef typename Refs::TexCoord2D      TexCoord2D;
  typedef typename Refs::TexCoord3D      TexCoord3D;
  typedef typename Refs::TextureIndex    TextureIndex;

  //--- get attribute bits from Traits ---
  enum Attribs
  {
    VAttribs = Traits::VertexAttributes,
    HAttribs = Traits::HalfedgeAttributes,
    EAttribs = Traits::EdgeAttributes,
    FAttribs = Traits::FaceAttributes
  };
  //--- merge internal items with traits items ---


/*
  typedef typename GenProg::IF<
    (bool)(HAttribs & Attributes::PrevHalfedge),
    typename InternalItems::Halfedge_with_prev,
    typename InternalItems::Halfedge_without_prev
  >::Result   InternalHalfedge;
*/
  //typedef typename InternalItems::Vertex                     InternalVertex;
  //typedef typename InternalItems::template Edge<Halfedge>      InternalEdge;
  //typedef typename InternalItems::template Face<IsTriMesh>     InternalFace;
  class ITraits
  {};

  typedef typename Traits::template VertexT<ITraits, Refs>      VertexData;
  typedef typename Traits::template HalfedgeT<ITraits, Refs>    HalfedgeData;
  typedef typename Traits::template EdgeT<ITraits, Refs>        EdgeData;
  typedef typename Traits::template FaceT<ITraits, Refs>        FaceData;
};


//=============================================================================
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_MESH_ITEMS_HH defined
//=============================================================================

