//=============================================================================
//                                                                            
//                               OpenMesh                                     
//        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen          
//                           www.openmesh.org                                 
//                                                                            
//-----------------------------------------------------------------------------
//                                                                            
//                                License                                     
//                                                                            
//   This library 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, version 2.1.                           
//                                                                             
//   This library 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 Lesser General Public          
//   License along with this library; if not, write to the Free Software       
//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 
//                                                                            
//-----------------------------------------------------------------------------
//                                                                            
//   $Revision: 1802 $
//   $Date: 2008-05-19 11:55:07 +0200 (Mo, 19. Mai 2008) $
//                                                                            
//=============================================================================

/** \file Uniform/Composite/CompositeTraits.hh
    Mesh traits for uniform composite subdivision.
 */

//=============================================================================
//
//  CLASS Traits
//
//=============================================================================

#ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITETRAITS_HH
#define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITETRAITS_HH


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

//#include "Config.hh"
// --------------------
#include <OpenMesh/Core/Mesh/Traits.hh>
#include <OpenMesh/Core/Mesh/Attributes.hh>


//== NAMESPACE ================================================================

namespace OpenMesh   { // BEGIN_NS_OPENMESH
namespace Subdivider { // BEGIN_NS_DECIMATER
namespace Uniform    { // BEGIN_NS_UNIFORM


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

/** Uniform Composite Subdivision framework.
*/

struct CompositeTraits : public OpenMesh::DefaultTraits
{
  FaceAttributes( OpenMesh::Attributes::Normal );
  
  VertexAttributes( OpenMesh::Attributes::Normal );
  
  //HalfedgeAttributes( OpenMesh::Attributes::PrevHalfedge );

  FaceTraits
  {
  private:
    typedef typename Refs::HalfedgeHandle HalfedgeHandle;
    typedef typename Refs::Scalar Scalar;
    typedef typename Refs::Point Point;
    HalfedgeHandle red_halfedge_handle_;
    unsigned int generation_;
    bool red_;
    Scalar quality_;
    Point midpoint_;
    Point position_;
    
  public:
    const unsigned int& generation() { return generation_; }
    void set_generation(const unsigned int& _g) { generation_ = _g; }
    void inc_generation() { ++generation_; }
    void set_red() { red_ = 1; }
    void set_green() {red_ = 0; }
    bool is_red() { return red_; }
    bool is_green() { return !red_; }
    void set_red_halfedge_handle(HalfedgeHandle& _heh) 
      { red_halfedge_handle_ = _heh; }
    HalfedgeHandle& red_halfedge_handle() { return red_halfedge_handle_; }
    void set_quality(Scalar& _q) { quality_ = _q; }
    Scalar& quality() { return quality_; }
    const Point& midpoint() const { return midpoint_; }
    void set_midpoint(const Point& _p) { midpoint_ = _p; }
    const Point& position() const { return position_; }
    void set_position(const Point& _p) { position_ = _p; }
  };

  EdgeTraits
  {
  private:
    typedef typename Refs::Point Point;
    typedef typename Refs::Scalar Scalar;
    Point midpoint_;
    Scalar length_;
    Point position_;
  public: 
    const Point& midpoint() const { return midpoint_; }
    void set_midpoint(const Point& _vh) { midpoint_ = _vh; }
    const Scalar& length() const { return length_; }
    void set_length(const Scalar& _s) { length_ = _s; }
    const Point& position() const { return position_; }
    void set_position(const Point& _p) { position_ = _p; }
  };

  VertexTraits
  {
  private:
    typedef typename Refs::Point Point;
    Point new_pos_;
    Point orig_pos_;
    Point position_;
    unsigned int generation_;
  public:
    const Point& new_pos() const { return new_pos_; }
    void set_new_pos(const Point& _p) { new_pos_ = _p; }
    const unsigned int& generation() const { return generation_; }
    void set_generation(const unsigned int& _i) { generation_ = _i; }
    const Point& orig_pos() const { return orig_pos_; }
    void set_orig_pos(const Point& _p) { orig_pos_ = _p; }
    const Point& position() const { return position_; }
    void set_position(const Point& _p) { position_ = _p; }
  };
};

//=============================================================================
} // END_NS_UNIFORM
} // END_NS_SUBDIVIDER
} // END_NS_OPENMESH
//=============================================================================
#endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITETRAITS_HH defined
//=============================================================================