250 lines
5.9 KiB
C++
Executable File
250 lines
5.9 KiB
C++
Executable File
// Copyright (c) 2017 GeometryFactory (France). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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//
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//
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// Author(s) : Andreas Fabri
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#ifndef CGAL_DYNAMIC_PROPERTY_MAP_H
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#define CGAL_DYNAMIC_PROPERTY_MAP_H
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#include <boost/graph/graph_traits.hpp>
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#include <CGAL/boost/graph/properties.h>
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#include <CGAL/property_map.h>
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#include <boost/shared_ptr.hpp>
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#include <boost/unordered_map.hpp>
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namespace CGAL {
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namespace internal {
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template <typename K, typename V>
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struct Dynamic_property_map {
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typedef K key_type;
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typedef V value_type;
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typedef const value_type& reference;
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typedef boost::read_write_property_map_tag category;
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Dynamic_property_map(const V& default_value = V())
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: map_(new Map()), default_value_(default_value)
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{}
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void clear()
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{
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if(map_){
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map_->clear();
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}
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}
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friend reference get(const Dynamic_property_map& m, const key_type& k)
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{
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typename Map::const_iterator it = m.map_->find(k);
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if(it == m.map_->end()){
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(*(const_cast<Dynamic_property_map&>(m).map_))[k] = m.default_value();
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return m.default_value();
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}
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return it->second;
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}
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friend void put(const Dynamic_property_map& m, const key_type& k, const value_type& v)
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{
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(*(m.map_))[k] = v;
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}
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const V& default_value() const
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{
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return default_value_;
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}
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typedef boost::unordered_map<K,V> Map;
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boost::shared_ptr<Map> map_;
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V default_value_;
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};
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template <typename M, typename PM>
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struct Dynamic_property_map_deleter {
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M& mesh;
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Dynamic_property_map_deleter(const M& mesh)
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: mesh(const_cast<M&>(mesh))
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{}
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void operator()(PM* pm) const
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{
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remove_property(*pm, mesh);
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delete pm;
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}
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};
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template <typename Mesh, typename PM>
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struct Dynamic {
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typedef typename PM::key_type key_type;
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typedef typename PM::value_type value_type;
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typedef typename PM::reference reference;
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typedef typename PM::category category;
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typedef Dynamic_property_map_deleter<Mesh,PM> Deleter;
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Dynamic()
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: map_()
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{}
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Dynamic(const Mesh& mesh, PM* pm)
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: map_(pm, Deleter(mesh))
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{}
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friend reference get(const Dynamic& m, const key_type& k)
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{
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return get(*(m.map_), k);
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}
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friend void put(const Dynamic& m, const key_type& k, const value_type& v)
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{
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put(*(m.map_), k, v);
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}
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boost::shared_ptr<PM> map_;
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};
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} // namespace internal
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template <typename T>
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struct dynamic_vertex_property_t
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{
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dynamic_vertex_property_t()
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{}
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};
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template <typename T>
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struct dynamic_halfedge_property_t
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{
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dynamic_halfedge_property_t()
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{}
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};
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template <typename T>
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struct dynamic_edge_property_t
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{
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dynamic_edge_property_t()
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{}
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};
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template <typename T>
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struct dynamic_face_property_t
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{
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dynamic_face_property_t()
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{}
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};
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} // namespace CGAL
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namespace boost {
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template <typename G, typename T>
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struct property_map<G, CGAL::dynamic_vertex_property_t<T> >
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{
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typedef typename boost::graph_traits<G>::vertex_descriptor vertex_descriptor;
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typedef CGAL::internal::Dynamic_property_map<vertex_descriptor,T> type;
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typedef type const_type;
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};
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template <typename G, typename T>
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struct property_map<G, CGAL::dynamic_halfedge_property_t<T> >
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{
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typedef typename boost::graph_traits<G>::halfedge_descriptor halfedge_descriptor;
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typedef CGAL::internal::Dynamic_property_map<halfedge_descriptor,T> type;
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typedef type const_type;
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};
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template <typename G, typename T>
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struct property_map<G, CGAL::dynamic_edge_property_t<T> >
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{
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typedef typename boost::graph_traits<G>::edge_descriptor edge_descriptor;
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typedef CGAL::internal::Dynamic_property_map<edge_descriptor,T> type;
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typedef type const_type;
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};
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template <typename G, typename T>
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struct property_map<G, CGAL::dynamic_face_property_t<T> >
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{
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typedef typename boost::graph_traits<G>::face_descriptor face_descriptor;
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typedef CGAL::internal::Dynamic_property_map<face_descriptor,T> type;
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typedef type const_type;
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};
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} // namespace boost
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namespace CGAL {
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template <typename T, typename G>
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typename boost::property_map<G, dynamic_vertex_property_t<T> >::const_type
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get(const CGAL::dynamic_vertex_property_t<T>&, const G&)
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{
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typedef typename boost::graph_traits<G>::vertex_descriptor vertex_descriptor;
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return internal::Dynamic_property_map<vertex_descriptor,T>();
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}
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template <typename T, typename G>
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typename boost::property_map<G, dynamic_halfedge_property_t<T> >::const_type
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get(const CGAL::dynamic_halfedge_property_t<T>&, const G&)
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{
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typedef typename boost::graph_traits<G>::halfedge_descriptor halfedge_descriptor;
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return internal::Dynamic_property_map<halfedge_descriptor,T>();
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}
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template <typename T, typename G>
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typename boost::property_map<G, dynamic_edge_property_t<T> >::const_type
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get(const CGAL::dynamic_edge_property_t<T>&, const G&)
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{
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typedef typename boost::graph_traits<G>::edge_descriptor edge_descriptor;
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return internal::Dynamic_property_map<edge_descriptor,T>();
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}
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template <typename T, typename G>
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typename boost::property_map<G, dynamic_face_property_t<T> >::const_type
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get(const CGAL::dynamic_face_property_t<T>&, const G&)
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{
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typedef typename boost::graph_traits<G>::face_descriptor face_descriptor;
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return internal::Dynamic_property_map<face_descriptor,T>();
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}
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template<typename G, typename Descriptor, typename T>
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void remove_property(
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internal::Dynamic_property_map<Descriptor, T> pm,
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const G&)
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{
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pm.clear();
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}
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} // namespace CGAL
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#endif // CGAL_DYNAMIC_PROPERTY_MAP_H
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