CompositeT.hh

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//=============================================================================
//
//  CLASS CompositeT
//
//=============================================================================
 
#ifndef OPENMESH_SUBDIVIDER_ADAPTIVE_COMPOSITET_HH
#define OPENMESH_SUBDIVIDER_ADAPTIVE_COMPOSITET_HH
 
 
//== INCLUDES =================================================================
 
#include <OpenMesh/Core/System/config.hh>
#include <OpenMesh/Tools/Subdivider/Adaptive/Composite/CompositeTraits.hh>
// --------------------
#include <vector>
#include <memory>
#include <string>
 
 
//== NAMESPACE ================================================================
 
namespace OpenMesh   { // BEGIN_NS_OPENMESH
namespace Subdivider { // BEGIN_NS_SUBDIVIDER
namespace Adaptive   { // BEGIN_NS_ADAPTIVE
 
 
//== CLASS DEFINITION =========================================================
 
 
template <typename R> struct RuleHandleT;
template <typename M> class  RuleInterfaceT;
 
 
//== CLASS DEFINITION =========================================================
 
template <typename M> class CompositeT
{
public:
 
  typedef RuleInterfaceT<M>  Rule;
  typedef M                  Mesh;
  typedef std::vector<Rule*> RuleSequence;
 
  typedef typename M::VertexHandle   VH;
  typedef typename M::FaceHandle     FH;
  typedef typename M::EdgeHandle     EH;
  typedef typename M::HalfedgeHandle HH;
 
public:
 
  explicit CompositeT(Mesh& _mesh)
    : subdiv_type_(0), 
      subdiv_rule_(nullptr), /*first_rule_(nullptr), last_rule_(nullptr),*/ mesh_(_mesh)
  { }
 
  virtual ~CompositeT() 
  { cleanup(); }
 
 
  void cleanup(void)
  {
    subdiv_type_ = 0;
    subdiv_rule_ = nullptr;
 
    std::for_each(rule_sequence_.begin(), 
                  rule_sequence_.end(), DeleteRule() );
    rule_sequence_.clear();
  }
 
 
  bool initialize(void);
 
  
  void refine(typename M::FaceHandle& _fh);
 
 
  void refine(typename M::VertexHandle& _vh);
 
 
  int subdiv_type() { return subdiv_type_; }
 
 
  // Return subdivision rule.
  const Rule& subdiv_rule() const { return *subdiv_rule_; }
 
public:
 
  //*@
 
  template < typename R >
  RuleHandleT<R> add()
  {
    size_t idx = rule_sequence_.size();
    rule_sequence_.push_back( new R( mesh_ ) );
    return RuleHandleT<R>( (idx < rule_sequence_.size()) ? idx : -1 );
  }
 
  template < typename R >
  RuleHandleT<R>& add( RuleHandleT<R>& _rh )
  {
    return _rh = add< R >();
  }
 
  template < typename R >
  typename RuleHandleT<R>::Rule& rule( const RuleHandleT<R>& _rh )
  {
    typedef typename RuleHandleT<R>::Rule rule_t;
    assert( _rh.is_valid() );
    return *dynamic_cast<rule_t*>(rule_sequence_[ _rh.idx() ]);
  }
 
 
  RuleInterfaceT<M>& rule( size_t _idx )
  {
    assert( _idx < n_rules() );
    return *rule_sequence_[ _idx ];
  }
 
  size_t n_rules() const { return rule_sequence_.size(); }
 
  std::string rules_as_string(const std::string& _sep= " * ") const;
 
 
protected:
 
  const RuleSequence& rules() const { return rule_sequence_; }
 
protected: // helper
 
  // get current generation from state
  state_t generation(state_t _s) const { return _s-(_s % n_rules()); }
  state_t generation( VH _vh ) const  { return generation(mesh_.data(_vh).state()); }
  state_t generation( EH _eh ) const { return generation(mesh_.data(_eh).state()); }
  state_t generation( FH _fh ) const { return generation(mesh_.data(_fh).state()); }
 
private:
 
  // short cuts
  Rule* t_rule() const { return subdiv_rule_;           }
  Rule* f_rule() { return rule_sequence_.front(); }
  Rule* l_rule() { return rule_sequence_.back();  }
 
private:
 
  // 
  RuleSequence rule_sequence_;
 
  // Split type
  int   subdiv_type_;
 
  Rule  *subdiv_rule_;
//   Rule  *first_rule_; 
//   Rule  *last_rule_;
 
  //
  Mesh  &mesh_;
 
private: // helper
 
#ifndef DOXY_IGNORE_THIS
  struct DeleteRule { void operator()( Rule* _r ) { delete _r; } };
#endif
 
private:
 
  CompositeT( const CompositeT& );
  CompositeT& operator = ( const CompositeT );
 
};
 
   
//=============================================================================
} // END_NS_ADAPTIVE
} // END_NS_SUBDIVIDER
} // END_NS_OPENMESH
//=============================================================================
#if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_SUBDIVIDER_ADAPTIVE_COMPOSITET_CC)
#  define OPENMESH_SUBDIVIDER_TEMPLATES
#  include "CompositeT_impl.hh"
#endif
//=============================================================================
#endif // OPENMESH_SUBDIVIDER_ADAPTIVE_COMPOSITET_HH defined
//=============================================================================