1 // SMESH SMDS : implementaion of Salome mesh data structure
3 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
24 // File : SMDS_SetIterator.hxx
25 // Created : Mon Feb 27 16:57:43 2006
26 // Author : Edward AGAPOV (eap)
29 #ifndef SMDS_SetIterator_HeaderFile
30 #define SMDS_SetIterator_HeaderFile
32 #include "SMDS_Iterator.hxx"
34 ///////////////////////////////////////////////////////////////////////////////
35 /// Accessors to value pointed by iterator
36 ///////////////////////////////////////////////////////////////////////////////
40 template<typename VALUE,typename VALUE_SET_ITERATOR>
41 struct SimpleAccessor {
42 static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) *it; }
45 template<typename VALUE,typename VALUE_SET_ITERATOR>
47 static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) it->first; }
50 template<typename VALUE,typename VALUE_SET_ITERATOR>
51 struct ValueAccessor {
52 static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) it->second; }
56 ///////////////////////////////////////////////////////////////////////////////
57 /// SMDS_Iterator iterating over abstract set of values like STL containers
59 /// BE CAREFUL: iterator pointed value is static_cast'ed to VALUE
61 ///////////////////////////////////////////////////////////////////////////////
63 template<typename VALUE,
64 typename VALUE_SET_ITERATOR,
65 typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR> >
66 class SMDS_SetIterator : public SMDS_Iterator<VALUE>
69 VALUE_SET_ITERATOR _beg, _end;
71 SMDS_SetIterator(const VALUE_SET_ITERATOR & begin,
72 const VALUE_SET_ITERATOR & end)
73 { init ( begin, end ); }
76 virtual void init(const VALUE_SET_ITERATOR & begin,
77 const VALUE_SET_ITERATOR & end)
78 { _beg = begin; _end = end; }
80 /// Return true if and only if there are other object in this iterator
81 virtual bool more() { return _beg != _end; }
83 /// Return the current object and step to the next one
84 virtual VALUE next() { return ACCESOR::value( _beg++ ); }
87 ///////////////////////////////////////////////////////////////////////////////
89 ///////////////////////////////////////////////////////////////////////////////
93 * \brief iterator on values of a map
96 struct SMDS_mapIterator : public SMDS_SetIterator< typename M::mapped_type, typename M::const_iterator,
97 SMDS::ValueAccessor<typename M::mapped_type,
98 typename M::const_iterator> > {
99 typedef SMDS_SetIterator< typename M::mapped_type, typename M::const_iterator,
100 SMDS::ValueAccessor<typename M::mapped_type,
101 typename M::const_iterator> > parent_type;
102 SMDS_mapIterator(const M& m):parent_type(m.begin(),m.end()) {}
105 * \brief reverse iterator on values of a map
108 struct SMDS_mapReverseIterator : public SMDS_SetIterator< typename M::mapped_type,
109 typename M::const_reverse_iterator,
110 SMDS::ValueAccessor<typename M::mapped_type,
111 typename M::const_reverse_iterator> > {
112 typedef SMDS_SetIterator< typename M::mapped_type, typename M::const_reverse_iterator,
113 SMDS::ValueAccessor<typename M::mapped_type,
114 typename M::const_reverse_iterator> > parent_type;
115 SMDS_mapReverseIterator(const M& m):parent_type(m.rbegin(),m.rend()) {}
118 * \brief iterator on keys of a map
121 struct SMDS_mapKeyIterator : public SMDS_SetIterator< typename M::key_type, typename M::const_iterator,
122 SMDS::KeyAccessor<typename M::key_type,
123 typename M::const_iterator> > {
124 typedef SMDS_SetIterator< typename M::key_type, typename M::const_iterator,
125 SMDS::KeyAccessor<typename M::key_type,
126 typename M::const_iterator> > parent_type;
127 SMDS_mapKeyIterator(const M& m):parent_type(m.begin(),m.end()) {}
130 * \brief reverse iterator on keys of a map
133 struct SMDS_mapKeyReverseIterator : public SMDS_SetIterator< typename M::key_type, typename M::const_iterator,
134 SMDS::KeyAccessor<typename M::key_type,
135 typename M::const_iterator> > {
136 typedef SMDS_SetIterator< typename M::key_type, typename M::const_iterator,
137 SMDS::KeyAccessor<typename M::key_type,
138 typename M::const_iterator> > parent_type;
139 SMDS_mapKeyReverseIterator(const M& m):parent_type(m.rbegin(),m.rend()) {}
142 ///////////////////////////////////////////////////////////////////////////////
143 // useful specifications
144 ///////////////////////////////////////////////////////////////////////////////
148 class SMDS_MeshElement;
151 typedef const SMDS_MeshElement* SMDS_pElement;
152 typedef const SMDS_MeshNode* SMDS_pNode;
156 typedef SMDS_SetIterator< SMDS_pElement, std::vector< SMDS_pElement >::const_iterator>
157 SMDS_ElementVectorIterator;
160 typedef SMDS_SetIterator< SMDS_pElement, SMDS_pElement const *>
161 SMDS_ElementArrayIterator;
164 typedef SMDS_SetIterator< SMDS_pElement, std::vector< SMDS_pNode >::const_iterator>
165 SMDS_NodeVectorElemIterator;
168 typedef SMDS_SetIterator< SMDS_pElement, SMDS_pNode const * >
169 SMDS_NodeArrayElemIterator;
173 typedef SMDS_SetIterator< SMDS_pNode, std::vector< SMDS_pNode >::const_iterator >
174 SMDS_NodeVectorIterator;
177 typedef SMDS_SetIterator< SMDS_pNode, SMDS_pNode const * >
178 SMDS_NodeArrayIterator;