SubdividerT.hh

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//=============================================================================
//
//  CLASS SubdividerT
//
//=============================================================================

#ifndef OPENMESH_SUBDIVIDER_UNIFORM_SUDIVIDERT_HH
#define OPENMESH_SUBDIVIDER_UNIFORM_SUDIVIDERT_HH

//== INCLUDE ==================================================================

#include <OpenMesh/Core/System/config.hh>
#include <OpenMesh/Core/Utils/Noncopyable.hh>
#if defined(_DEBUG) || defined(DEBUG)
// Makes life lot easier, when playing/messing around with low-level topology
// changing methods of OpenMesh
#  include <OpenMesh/Tools/Utils/MeshCheckerT.hh>
#  define ASSERT_CONSISTENCY( T, m ) \
     assert(OpenMesh::Utils::MeshCheckerT<T>(m).check())
#else
#  define ASSERT_CONSISTENCY( T, m )
#endif

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

namespace OpenMesh   {
namespace Subdivider {
namespace Uniform    {

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

template <typename MeshType, typename RealType = double>
class SubdividerT : private Utils::Noncopyable
{
public:

  typedef MeshType mesh_t;
  typedef RealType real_t;

public:


  SubdividerT(void) : attached_() { }

  explicit SubdividerT( MeshType &_m ) : attached_(nullptr) {  attach(_m); }


  virtual ~SubdividerT() 
  { detach(); }

  virtual const char *name( void ) const = 0;


public: 

  bool operator () ( MeshType& _m, size_t _n , const bool _update_points  = true)
  {    
    return prepare(_m) && subdivide( _m, _n , _update_points ) && cleanup( _m );
  }

public: 

  bool attach( MeshType& _m )
  {
    if ( attached_ == &_m )
      return true;

    detach();
    if (prepare( _m ))
    {
      attached_ = &_m;
      return true;
    }
    return false;
  }

  bool operator()( size_t _n , const bool _update_points = true)
  {
    return attached_ ? subdivide( *attached_, _n , _update_points) : false;
  }

  void detach(void)
  {
    if ( attached_ )
    {
      cleanup( *attached_ );
      attached_ = nullptr;
    }
  }

protected: 


  virtual bool prepare( MeshType& _m ) = 0;

  virtual bool subdivide( MeshType& _m, size_t _n, const bool _update_points = true) = 0;

  virtual bool cleanup( MeshType& _m ) = 0;

private:
 
  MeshType *attached_;

};

//=============================================================================
} // namespace Uniform
} // namespace Subdivider
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_SUBDIVIDER_UNIFORM_SUBDIVIDERT_HH
//=============================================================================