TriStripNodeDeprecatedT.hh

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//=============================================================================
//
//  CLASS TriStripNodeDeprecatedT
//
//=============================================================================


#ifndef ACG_TRISTRIPNODET_HH
#define ACG_TRISTRIPNODET_HH


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


#include <OpenMesh/Tools/Utils/StripifierT.hh>
#include "MeshNodeDeprecatedT.hh"


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


namespace ACG {
namespace SceneGraph {


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



template <class Mesh>
class TriStripNodeDeprecatedT : public MeshNodeDeprecatedT<Mesh>
{
public:

  typedef OpenMesh::StripifierT<Mesh>  MyStripifier;
  typedef MeshNodeDeprecatedT<Mesh>              Base;
  typedef typename Base::FaceMode      FaceMode;


  TriStripNodeDeprecatedT(Mesh&        _mesh,
                BaseNode*    _parent=0,
                std::string  _name="<TriStripNodeDeprecatedT>" )
    : Base(_mesh, _parent, _name),
      strips_(_mesh)
  {}


  ~TriStripNodeDeprecatedT() {}


  ACG_CLASSNAME(TriStripNodeDeprecatedT);


  void update_strips()
  {
    std::vector<unsigned int>().swap(Base::indices_);
    strips_.stripify();
  }


  virtual void update_topology()
  {
    strips_.clear();
    Base::update_topology();
  }



private:

  virtual void draw_faces(FaceMode _mode)
  {
    if (Base::mesh_.is_trimesh()  &&
             _mode == Base::PER_VERTEX &&
             strips_.is_valid())
    {
      typename MyStripifier::StripsIterator strip_it   = strips_.begin();
      typename MyStripifier::StripsIterator strip_last = strips_.end();

      for (; strip_it!=strip_last; ++strip_it)
                  glDrawElements(GL_TRIANGLE_STRIP,
                       strip_it->size(),
                       GL_UNSIGNED_INT,
                       &(*strip_it)[0] );
    }
    else Base::draw_faces(_mode);
  }


  MyStripifier  strips_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_TRISTRIPNODET_HH defined
//=============================================================================