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Fix SLS iterators to actually handle all possible models

This commit is contained in:
Mael Rouxel-Labbé 2023-02-13 16:04:33 +01:00
parent f6579ecb2c
commit b51b4d8713
1 changed files with 44 additions and 51 deletions
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95
Straight_skeleton_2/include/CGAL/Straight_skeleton_2/Polygon_iterators.h
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@ -13,72 +13,65 @@
#include <CGAL/license/Straight_skeleton_2.h>
#include <CGAL/Polygon_with_holes_2.h>
#include <boost/shared_ptr.hpp>
#include <type_traits>
namespace CGAL {
namespace CGAL_SS_i {
// to distinguish between SequenceContainers of points, and GeneralPolygonWithHoles_2
BOOST_MPL_HAS_XXX_TRAIT_DEF(Hole_const_iterator)
// Generic container
template<class Poly>
inline typename Poly::const_iterator vertices_begin ( Poly const& aPoly )
{ return aPoly.begin() ; }
// Polygon_2-type container
template <typename Poly>
inline typename Poly::const_iterator
vertices_begin(const Poly& aPoly,
std::enable_if_t<!has_Hole_const_iterator<Poly>::value>* = nullptr)
{ return aPoly.begin(); }
template<class Poly>
inline typename Poly::const_iterator vertices_end ( Poly const& aPoly )
{ return aPoly.end() ; }
template <typename Poly>
inline typename Poly::const_iterator
vertices_end(const Poly& aPoly,
std::enable_if_t<!has_Hole_const_iterator<Poly>::value>* = nullptr)
{ return aPoly.end(); }
template<class Poly>
inline typename Poly::const_iterator vertices_begin ( boost::shared_ptr<Poly> const& aPoly )
{ return aPoly->begin() ; }
template <typename Poly>
inline typename Poly::const_iterator
vertices_begin(const boost::shared_ptr<Poly>& aPoly,
std::enable_if_t<!has_Hole_const_iterator<Poly>::value>* = nullptr)
{ return aPoly->begin(); }
template<class Poly>
inline typename Poly::const_iterator vertices_end ( boost::shared_ptr<Poly> const& aPoly )
{ return aPoly->end() ; }
template <typename Poly>
inline typename Poly::const_iterator
vertices_end(const boost::shared_ptr<Poly> & aPoly,
std::enable_if_t<!has_Hole_const_iterator<Poly>::value>* = nullptr)
{ return aPoly->end(); }
// Polygon_2
template<class K, class C>
inline typename Polygon_2<K,C>::Vertex_const_iterator
vertices_begin ( Polygon_2<K,C> const& aPoly )
{ return aPoly.vertices_begin() ; }
// Polygon_with_holes_2-type container
template <typename PolyWithHoles>
inline typename PolyWithHoles::Polygon_2::const_iterator
vertices_begin(const PolyWithHoles& aPoly,
std::enable_if_t<has_Hole_const_iterator<PolyWithHoles>::value>* = nullptr)
{ return aPoly.outer_boundary().begin(); }
template<class K, class C>
inline typename Polygon_2<K,C>::Vertex_const_iterator
vertices_end( Polygon_2<K,C> const& aPoly )
{ return aPoly.vertices_end() ; }
template <typename PolyWithHoles>
inline typename PolyWithHoles::Polygon_2::const_iterator
vertices_end(const PolyWithHoles& aPoly,
std::enable_if_t<has_Hole_const_iterator<PolyWithHoles>::value>* = nullptr)
{ return aPoly.outer_boundary().end(); }
template<class K, class C>
inline typename Polygon_2<K,C>::Vertex_const_iterator vertices_begin ( boost::shared_ptr<Polygon_2<K,C> > const& aPoly )
{ return aPoly->vertices_begin() ; }
template <typename PolyWithHoles>
inline typename PolyWithHoles::Polygon_2::const_iterator
vertices_begin(const boost::shared_ptr<PolyWithHoles>& aPoly,
std::enable_if_t<has_Hole_const_iterator<PolyWithHoles>::value>* = nullptr)
{ return aPoly->outer_boundary().begin(); }
template<class K, class C>
inline typename Polygon_2<K,C>::Vertex_const_iterator vertices_end( boost::shared_ptr<Polygon_2<K,C> > const& aPoly )
{ return aPoly->vertices_end() ; }
// Polygon_with_holes_2
template<class K, class C>
inline typename Polygon_with_holes_2<K,C>::Polygon_2::Vertex_const_iterator
vertices_begin ( Polygon_with_holes_2<K,C> const& aPoly )
{ return aPoly.outer_boundary().vertices_begin() ; }
template<class K, class C>
inline typename Polygon_with_holes_2<K,C>::Polygon_2::Vertex_const_iterator
vertices_end( Polygon_with_holes_2<K,C> const& aPoly )
{ return aPoly.outer_boundary().vertices_end() ; }
template<class K, class C>
inline typename Polygon_with_holes_2<K,C>::Polygon_2::Vertex_const_iterator
vertices_begin ( boost::shared_ptr<Polygon_with_holes_2<K,C> > const& aPoly )
{ return aPoly->outer_boundary().vertices_begin() ; }
template<class K, class C>
inline typename Polygon_with_holes_2<K,C>::Polygon_2::Vertex_const_iterator
vertices_end( boost::shared_ptr<Polygon_with_holes_2<K,C> > const& aPoly )
{ return aPoly->outer_boundary().vertices_end() ; }
template <typename PolyWithHoles>
inline typename PolyWithHoles::Polygon_2::const_iterator
vertices_end(const boost::shared_ptr<PolyWithHoles>& aPoly,
std::enable_if_t<has_Hole_const_iterator<PolyWithHoles>::value>* = nullptr)
{ return aPoly->outer_boundary().end(); }
} // namespace CGAL_SS_i
} // namespace CGAL