mirror of https://github.com/CGAL/cgal
262 lines
7.4 KiB
C++
262 lines
7.4 KiB
C++
// Copyright (c) 2010-2011 CNRS and LIRIS' Establishments (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
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//
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#ifndef CGAL_DART_H
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#define CGAL_DART_H 1
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#include <CGAL/assertions.h>
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#include <CGAL/tags.h>
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#include <CGAL/tuple.h>
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#include <bitset>
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#include <CGAL/Cell_attribute.h>
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namespace CGAL {
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template <class, class, class, class>
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class Compact_container;
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template <class, class>
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class Concurrent_compact_container;
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template<unsigned int, class, class, class>
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class Combinatorial_map_storage_1;
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template<unsigned int, class, class, class>
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class Generalized_map_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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class CMap_linear_cell_complex_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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class GMap_linear_cell_complex_storage_1;
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namespace internal {
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template<class, class>
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struct Init_id;
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} // end namespace internal
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/** @file Dart.h
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* Definition of nD dart.
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*/
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/** Definition of nD dart without information.
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* The_dart class describes an nD dart (basic element of a combinatorial or generalized map).
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* A dart is composed with handle towards its neighbors,
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* a bitset containing Boolean marks, and handle towards enabled attributes.
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* n is the dimension of the space (2 for 2D, 3 for 3D...)
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* Refs the ref class
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*/
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template <unsigned int d, typename Refs, class WithId>
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struct Dart_without_info: public Add_id<WithId>
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{
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public:
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template<unsigned int, class, class, class>
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friend class Combinatorial_map_storage_1;
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template<unsigned int, class, class, class>
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friend class Generalized_map_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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friend class CMap_linear_cell_complex_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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friend class GMap_linear_cell_complex_storage_1;
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template <class, class, class, class>
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friend class Compact_container;
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template <class, class>
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friend class Concurrent_compact_container;
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template<class, class>
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friend struct internal::Init_id;
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typedef Dart_without_info<d,Refs, WithId> Self;
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typedef typename Refs::Dart_handle Dart_handle;
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typedef typename Refs::size_type size_type;
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typedef typename Refs::Dart_const_handle Dart_const_handle;
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typedef typename Refs::Helper Helper;
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typedef WithId Has_id;
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/// Typedef for attributes
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template<int i>
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struct Attribute_handle: public Refs::template Attribute_handle<i>
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{};
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template<int i>
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struct Attribute_const_handle:
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public Refs::template Attribute_const_handle<i>
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{};
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/// The number of used marks.
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static const size_type NB_MARKS = Refs::NB_MARKS;
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/// The dimension of the combinatorial map.
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static const unsigned int dimension = d;
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void * for_compact_container() const
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{ return mf[0].for_compact_container(); }
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void for_compact_container(void *p)
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{ mf[0].for_compact_container(p); }
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Dart_handle get_f(unsigned int i) const
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{
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assert(i<=dimension);
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return mf[i];
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}
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protected:
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/** Default constructor: no real initialisation,
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* because this is done in the combinatorial map class.
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*/
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Dart_without_info()
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{}
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/** Copy constructor:
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* @param adart a dart.
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*/
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Dart_without_info(const Dart_without_info& adart) : mmarks(adart.mmarks),
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mattribute_handles(adart.mattribute_handles)
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{
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for (unsigned int i = 0; i <= dimension; ++i)
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mf[i] = adart.mf[i];
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}
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/** Return the mark value of a given mark number.
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* @param amark the mark number.
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* @return the value for this number.
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*/
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bool get_mark(size_type amark) const
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{
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CGAL_assertion(amark>=0 && amark<NB_MARKS);
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return mmarks[amark];
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}
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/** Set the mark of a given mark number to a given value.
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* @param amark the mark number.
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* @param AValue the value.
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*/
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void set_mark(size_type amark, bool avalue) const
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{
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CGAL_assertion(amark>=0 && amark<NB_MARKS);
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mmarks.set(amark, avalue);
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}
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/** Flip the mark of a given mark number.
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* @param amark the mark number.
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*/
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void flip_mark(size_type amark) const
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{
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CGAL_assertion(amark>=0 && amark<NB_MARKS);
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mmarks.flip(amark);
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}
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/** Return all the marks of this dart.
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* @return the marks.
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*/
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std::bitset<NB_MARKS> get_marks() const
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{ return mmarks; }
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/** Set simultaneously all the marks of this dart to a given value.
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* @param amarks the value of the marks.
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*/
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void set_marks(const std::bitset<NB_MARKS>& amarks) const
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{ mmarks = amarks; }
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/// @return a handle on the i-attribute
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template<int i>
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typename Attribute_handle<i>::type attribute()
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{
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CGAL_static_assertion_msg(Helper::template Dimension_index<i>::value>=0,
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"attribute<i> called but i-attributes are disabled.");
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return std::get<Helper::template Dimension_index<i>::value>
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(mattribute_handles);
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}
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template<int i>
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typename Attribute_const_handle<i>::type attribute() const
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{
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CGAL_static_assertion_msg(Helper::template Dimension_index<i>::value>=0,
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"attribute<i> called but i-attributes are disabled.");
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return std::get<Helper::template Dimension_index<i>::value>
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(mattribute_handles);
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}
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protected:
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/// Neighboors for each dimension +1 (from 0 to dimension).
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Dart_handle mf[dimension+1];
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/// Values of Boolean marks.
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mutable std::bitset<NB_MARKS> mmarks;
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/// Attributes enabled
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typename Helper::Attribute_handles mattribute_handles;
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};
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// Dart definition with an info;
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// (there is a specialization below when Info_==void)
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template <unsigned int d, typename Refs, typename Info_=void,
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class WithID=Tag_false>
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struct Dart : public Dart_without_info<d, Refs, WithID>
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{
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public:
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template<unsigned int, class, class, class>
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friend class Combinatorial_map_storage_1;
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template<unsigned int, class, class, class>
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friend class Generalized_map_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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friend class CMap_linear_cell_complex_storage_1;
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template<unsigned int, unsigned int, class, class, class, class>
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friend class GMap_linear_cell_complex_storage_1;
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template <class, class, class, class>
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friend class Compact_container;
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template <class, class>
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friend class Concurrent_compact_container;
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typedef Dart<d, Refs, Info_, WithID> Self;
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typedef Info_ Info;
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protected:
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/** Default constructor: no real initialisation,
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* because this is done in the combinatorial or generalized map class.
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*/
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Dart()
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{}
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Dart(const Info_& info) : minfo(info)
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{}
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Info_& info()
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{ return minfo; }
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const Info_& info() const
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{ return minfo; }
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protected:
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Info minfo;
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};
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// Specialization of Dart class when info==void
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template <unsigned int d, typename Refs, class WithID>
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struct Dart<d, Refs, void, WithID> : public Dart_without_info<d, Refs, WithID>
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{
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public:
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typedef CGAL::Void Info;
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};
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} // namespace CGAL
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#endif // CGAL_DART_H //
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// EOF //
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