StatusNodesT.hh

/*===========================================================================*\
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8548 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-12 14:40:13 +0100 (Fr, 12. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  Status Nodes
//
//=============================================================================


#ifndef ACG_STATUS_NODES_HH
#define ACG_STATUS_NODES_HH


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


#include <OpenMesh/Core/Mesh/Attributes.hh>

#include "MaterialNode.hh"
#include "DrawModes.hh"

#include <vector>


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


namespace ACG {
namespace SceneGraph {


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


template <class Mesh, class Mod>
class StatusNodeT : public MaterialNode
{
public:

  StatusNodeT( const Mesh&         _mesh,
               BaseNode*           _parent = 0,
               const std::string&  _name   = "<StatusNode>" );

  ~StatusNodeT() {}

  ACG_CLASSNAME(StatusNode);


  void update_cache();


  DrawModes::DrawMode  availableDrawModes() const;
  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);
  void draw(GLState& _state, DrawModes::DrawMode _drawMode);
  void pick(GLState& /* _state */ , PickTarget /* _target */ ) {}


private:

  typedef typename Mesh::Face        Face;
  typedef typename Mesh::Vertex      Vertex;
  typedef typename Mesh::Halfedge    Halfedge;
  typedef typename Mesh::Edge        Edge;
  typedef typename Mesh::FaceHandle  FaceHandle;

  void draw_points();
  void draw_edges();
  void draw_faces(bool _per_vertex);


private:

  const Mesh&                mesh_;
  std::vector<unsigned int>  v_cache_, e_cache_, f_cache_;
  std::vector<FaceHandle>    fh_cache_;

  // bounding box
  Vec3d bbMin_;
  Vec3d bbMax_;
};



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


template <class Mesh, unsigned int Bit>
struct StatusModT
{
  static bool is_vertex_selected(const Mesh& _mesh,
                                 typename Mesh::VertexHandle _vh)
  {
    return _mesh.status(_vh).is_bit_set(Bit);
  }

  static bool is_edge_selected(const Mesh& _mesh,
                               typename Mesh::EdgeHandle _eh)
  {
    return _mesh.status(_eh).is_bit_set(Bit);
  }

  static bool is_face_selected(const Mesh& _mesh,
                               typename Mesh::FaceHandle _fh)
  {
    return _mesh.status(_fh).is_bit_set(Bit);
  }
};



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


template <class Mesh>
struct SelectionModT
  : public StatusModT<Mesh, OpenMesh::Attributes::SELECTED>
{};



template <class Mesh>
class SelectionNodeT
  : virtual public StatusNodeT<Mesh, SelectionModT<Mesh> >
{
public:

  SelectionNodeT( const Mesh&         _mesh,
                  BaseNode*           _parent = 0,
                  const std::string&  _name   = "<SelectionNode>" )
    : StatusNodeT<Mesh, SelectionModT<Mesh> > (_mesh, _parent, _name)
  {}
};


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


template <class Mesh>
struct LockModT
  : public StatusModT<Mesh, OpenMesh::Attributes::LOCKED>
{};


template <class Mesh>
class LockNodeT : public StatusNodeT<Mesh, LockModT<Mesh> >
{
public:

  LockNodeT( const Mesh&         _mesh,
             BaseNode*           _parent = 0,
             const std::string&  _name   = "<LockNode>" )
    : StatusNodeT<Mesh, LockModT<Mesh> > (_mesh, _parent, _name)
  {}
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(ACG_STATUS_NODES_C)
#define ACG_STATUS_NODES_TEMPLATES
#include "StatusNodesT.cc"
#endif
//=============================================================================
#endif // ACG_STATUS_NODES_HH defined
//=============================================================================