[857] | 1 | //=======================================================================
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| 2 | // Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
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| 3 | // Copyright 2004 The Trustees of Indiana University.
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| 4 | // Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek, Douglas Gregor
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| 5 | //
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| 6 | // Distributed under the Boost Software License, Version 1.0. (See
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| 7 | // accompanying file LICENSE_1_0.txt or copy at
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| 8 | // http://www.boost.org/LICENSE_1_0.txt)
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| 9 | //=======================================================================
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| 10 | #ifndef BOOST_GRAPH_LEDA_HPP
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| 11 | #define BOOST_GRAPH_LEDA_HPP
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| 12 |
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| 13 | #include <boost/config.hpp>
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| 14 | #include <boost/iterator/iterator_facade.hpp>
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| 15 | #include <boost/graph/graph_traits.hpp>
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| 16 | #include <boost/graph/properties.hpp>
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| 17 |
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| 18 | #include <LEDA/graph.h>
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| 19 | #include <LEDA/node_array.h>
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| 20 | #include <LEDA/node_map.h>
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| 21 |
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| 22 | // The functions and classes in this file allows the user to
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| 23 | // treat a LEDA GRAPH object as a boost graph "as is". No
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| 24 | // wrapper is needed for the GRAPH object.
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| 25 |
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| 26 | // Remember to define LEDA_PREFIX so that LEDA types such as
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| 27 | // leda_edge show up as "leda_edge" and not just "edge".
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| 28 |
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| 29 | // Warning: this implementation relies on partial specialization
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| 30 | // for the graph_traits class (so it won't compile with Visual C++)
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| 31 |
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| 32 | // Warning: this implementation is in alpha and has not been tested
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| 33 |
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| 34 | #if !defined BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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| 35 | namespace boost {
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| 36 |
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| 37 | struct leda_graph_traversal_category :
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| 38 | public virtual bidirectional_graph_tag,
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| 39 | public virtual adjacency_graph_tag,
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| 40 | public virtual vertex_list_graph_tag { };
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| 41 |
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| 42 | template <class vtype, class etype>
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| 43 | struct graph_traits< leda::GRAPH<vtype,etype> > {
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| 44 | typedef leda_node vertex_descriptor;
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| 45 | typedef leda_edge edge_descriptor;
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| 46 |
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| 47 | class adjacency_iterator
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| 48 | : public iterator_facade<adjacency_iterator,
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| 49 | leda_node,
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| 50 | bidirectional_traversal_tag,
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| 51 | leda_node,
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| 52 | const leda_node*>
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| 53 | {
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| 54 | public:
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| 55 | explicit adjacency_iterator(leda_edge edge = 0) : base(edge) {}
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| 56 |
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| 57 | private:
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| 58 | leda_node dereference() const { return leda::target(base); }
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| 59 |
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| 60 | bool equal(const adjacency_iterator& other) const
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| 61 | { return base == other.base; }
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| 62 |
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| 63 | void increment() { base = Succ_Adj_Edge(base, 0); }
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| 64 | void decrement() { base = Pred_Adj_Edge(base, 0); }
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| 65 |
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| 66 | leda_edge base;
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| 67 |
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| 68 | friend class iterator_core_access;
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| 69 | };
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| 70 |
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| 71 | class out_edge_iterator
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| 72 | : public iterator_facade<out_edge_iterator,
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| 73 | leda_edge,
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| 74 | bidirectional_traversal_tag,
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| 75 | const leda_edge&,
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| 76 | const leda_edge*>
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| 77 | {
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| 78 | public:
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| 79 | explicit out_edge_iterator(leda_edge edge = 0) : base(edge) {}
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| 80 |
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| 81 | private:
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| 82 | const leda_edge& dereference() const { return base; }
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| 83 |
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| 84 | bool equal(const out_edge_iterator& other) const
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| 85 | { return base == other.base; }
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| 86 |
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| 87 | void increment() { base = Succ_Adj_Edge(base, 0); }
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| 88 | void decrement() { base = Pred_Adj_Edge(base, 0); }
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| 89 |
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| 90 | leda_edge base;
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| 91 |
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| 92 | friend class iterator_core_access;
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| 93 | };
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| 94 |
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| 95 | class in_edge_iterator
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| 96 | : public iterator_facade<in_edge_iterator,
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| 97 | leda_edge,
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| 98 | bidirectional_traversal_tag,
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| 99 | const leda_edge&,
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| 100 | const leda_edge*>
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| 101 | {
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| 102 | public:
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| 103 | explicit in_edge_iterator(leda_edge edge = 0) : base(edge) {}
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| 104 |
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| 105 | private:
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| 106 | const leda_edge& dereference() const { return base; }
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| 107 |
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| 108 | bool equal(const in_edge_iterator& other) const
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| 109 | { return base == other.base; }
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| 110 |
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| 111 | void increment() { base = Succ_Adj_Edge(base, 1); }
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| 112 | void decrement() { base = Pred_Adj_Edge(base, 1); }
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| 113 |
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| 114 | leda_edge base;
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| 115 |
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| 116 | friend class iterator_core_access;
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| 117 | };
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| 118 |
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| 119 | class vertex_iterator
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| 120 | : public iterator_facade<vertex_iterator,
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| 121 | leda_node,
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| 122 | bidirectional_traversal_tag,
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| 123 | const leda_node&,
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| 124 | const leda_node*>
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| 125 | {
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| 126 | public:
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| 127 | vertex_iterator(leda_node node = 0,
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| 128 | const leda::GRAPH<vtype, etype>* g = 0)
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| 129 | : base(node), g(g) {}
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| 130 |
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| 131 | private:
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| 132 | const leda_node& dereference() const { return base; }
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| 133 |
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| 134 | bool equal(const vertex_iterator& other) const
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| 135 | { return base == other.base; }
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| 136 |
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| 137 | void increment() { base = g->succ_node(base); }
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| 138 | void decrement() { base = g->pred_node(base); }
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| 139 |
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| 140 | leda_node base;
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| 141 | const leda::GRAPH<vtype, etype>* g;
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| 142 |
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| 143 | friend class iterator_core_access;
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| 144 | };
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| 145 |
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| 146 | typedef directed_tag directed_category;
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| 147 | typedef allow_parallel_edge_tag edge_parallel_category; // not sure here
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| 148 | typedef leda_graph_traversal_category traversal_category;
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| 149 | typedef int vertices_size_type;
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| 150 | typedef int edges_size_type;
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| 151 | typedef int degree_size_type;
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| 152 | };
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| 153 |
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| 154 | template <class vtype, class etype>
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| 155 | struct vertex_property< leda::GRAPH<vtype,etype> > {
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| 156 | typedef vtype type;
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| 157 | };
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| 158 |
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| 159 | template <class vtype, class etype>
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| 160 | struct edge_property< leda::GRAPH<vtype,etype> > {
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| 161 | typedef etype type;
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| 162 | };
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| 163 |
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| 164 | } // namespace boost
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| 165 | #endif
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| 166 |
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| 167 | namespace boost {
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| 168 |
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| 169 | template <class vtype, class etype>
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| 170 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor
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| 171 | source(typename graph_traits< leda::GRAPH<vtype,etype> >::edge_descriptor e,
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| 172 | const leda::GRAPH<vtype,etype>& g)
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| 173 | {
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| 174 | return source(e);
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| 175 | }
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| 176 |
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| 177 | template <class vtype, class etype>
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| 178 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor
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| 179 | target(typename graph_traits< leda::GRAPH<vtype,etype> >::edge_descriptor e,
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| 180 | const leda::GRAPH<vtype,etype>& g)
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| 181 | {
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| 182 | return target(e);
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| 183 | }
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| 184 |
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| 185 | template <class vtype, class etype>
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| 186 | inline std::pair<
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| 187 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_iterator,
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| 188 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_iterator >
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| 189 | vertices(const leda::GRAPH<vtype,etype>& g)
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| 190 | {
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| 191 | typedef typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_iterator
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| 192 | Iter;
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| 193 | return std::make_pair( Iter(g.first_node(),&g), Iter(0,&g) );
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| 194 | }
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| 195 |
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| 196 | // no edges(g) function
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| 197 |
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| 198 | template <class vtype, class etype>
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| 199 | inline std::pair<
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| 200 | typename graph_traits< leda::GRAPH<vtype,etype> >::out_edge_iterator,
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| 201 | typename graph_traits< leda::GRAPH<vtype,etype> >::out_edge_iterator >
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| 202 | out_edges(
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| 203 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 204 | const leda::GRAPH<vtype,etype>& g)
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| 205 | {
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| 206 | typedef typename graph_traits< leda::GRAPH<vtype,etype> >
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| 207 | ::out_edge_iterator Iter;
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| 208 | return std::make_pair( Iter(First_Adj_Edge(u,0)), Iter(0) );
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| 209 | }
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| 210 |
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| 211 | template <class vtype, class etype>
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| 212 | inline std::pair<
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| 213 | typename graph_traits< leda::GRAPH<vtype,etype> >::in_edge_iterator,
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| 214 | typename graph_traits< leda::GRAPH<vtype,etype> >::in_edge_iterator >
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| 215 | in_edges(
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| 216 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 217 | const leda::GRAPH<vtype,etype>& g)
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| 218 | {
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| 219 | typedef typename graph_traits< leda::GRAPH<vtype,etype> >
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| 220 | ::in_edge_iterator Iter;
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| 221 | return std::make_pair( Iter(First_Adj_Edge(u,1)), Iter(0) );
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| 222 | }
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| 223 |
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| 224 | template <class vtype, class etype>
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| 225 | inline std::pair<
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| 226 | typename graph_traits< leda::GRAPH<vtype,etype> >::adjacency_iterator,
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| 227 | typename graph_traits< leda::GRAPH<vtype,etype> >::adjacency_iterator >
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| 228 | adjacent_vertices(
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| 229 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 230 | const leda::GRAPH<vtype,etype>& g)
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| 231 | {
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| 232 | typedef typename graph_traits< leda::GRAPH<vtype,etype> >
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| 233 | ::adjacency_iterator Iter;
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| 234 | return std::make_pair( Iter(First_Adj_Edge(u,0)), Iter(0) );
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| 235 | }
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| 236 |
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| 237 | template <class vtype, class etype>
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| 238 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertices_size_type
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| 239 | num_vertices(const leda::GRAPH<vtype,etype>& g)
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| 240 | {
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| 241 | return g.number_of_nodes();
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| 242 | }
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| 243 |
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| 244 | template <class vtype, class etype>
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| 245 | typename graph_traits< leda::GRAPH<vtype,etype> >::edges_size_type
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| 246 | num_edges(const leda::GRAPH<vtype,etype>& g)
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| 247 | {
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| 248 | return g.number_of_edges();
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| 249 | }
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| 250 |
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| 251 | template <class vtype, class etype>
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| 252 | typename graph_traits< leda::GRAPH<vtype,etype> >::degree_size_type
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| 253 | out_degree(
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| 254 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 255 | const leda::GRAPH<vtype,etype>&)
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| 256 | {
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| 257 | return outdeg(u);
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| 258 | }
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| 259 |
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| 260 | template <class vtype, class etype>
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| 261 | typename graph_traits< leda::GRAPH<vtype,etype> >::degree_size_type
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| 262 | in_degree(
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| 263 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 264 | const leda::GRAPH<vtype,etype>&)
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| 265 | {
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| 266 | return indeg(u);
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| 267 | }
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| 268 |
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| 269 | template <class vtype, class etype>
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| 270 | typename graph_traits< leda::GRAPH<vtype,etype> >::degree_size_type
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| 271 | degree(
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| 272 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 273 | const leda::GRAPH<vtype,etype>&)
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| 274 | {
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| 275 | return outdeg(u) + indeg(u);
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| 276 | }
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| 277 |
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| 278 | template <class vtype, class etype>
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| 279 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor
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| 280 | add_vertex(leda::GRAPH<vtype,etype>& g)
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| 281 | {
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| 282 | return g.new_node();
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| 283 | }
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| 284 |
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| 285 | template <class vtype, class etype>
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| 286 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor
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| 287 | add_vertex(const vtype& vp, leda::GRAPH<vtype,etype>& g)
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| 288 | {
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| 289 | return g.new_node(vp);
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| 290 | }
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| 291 |
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| 292 | // Hmm, LEDA doesn't have the equivalent of clear_vertex() -JGS
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| 293 | // need to write an implementation
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| 294 | template <class vtype, class etype>
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| 295 | void clear_vertex(
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| 296 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 297 | leda::GRAPH<vtype,etype>& g)
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| 298 | {
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| 299 | g.del_node(u);
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| 300 | }
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| 301 |
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| 302 | template <class vtype, class etype>
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| 303 | void remove_vertex(
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| 304 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 305 | leda::GRAPH<vtype,etype>& g)
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| 306 | {
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| 307 | g.del_node(u);
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| 308 | }
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| 309 |
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| 310 | template <class vtype, class etype>
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| 311 | std::pair<
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| 312 | typename graph_traits< leda::GRAPH<vtype,etype> >::edge_descriptor,
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| 313 | bool>
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| 314 | add_edge(
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| 315 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 316 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor v,
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| 317 | leda::GRAPH<vtype,etype>& g)
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| 318 | {
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| 319 | return std::make_pair(g.new_edge(u, v), true);
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| 320 | }
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| 321 |
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| 322 | template <class vtype, class etype>
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| 323 | std::pair<
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| 324 | typename graph_traits< leda::GRAPH<vtype,etype> >::edge_descriptor,
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| 325 | bool>
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| 326 | add_edge(
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| 327 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 328 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor v,
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| 329 | const etype& et,
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| 330 | leda::GRAPH<vtype,etype>& g)
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| 331 | {
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| 332 | return std::make_pair(g.new_edge(u, v, et), true);
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| 333 | }
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| 334 |
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| 335 | template <class vtype, class etype>
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| 336 | void
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| 337 | remove_edge(
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| 338 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor u,
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| 339 | typename graph_traits< leda::GRAPH<vtype,etype> >::vertex_descriptor v,
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| 340 | leda::GRAPH<vtype,etype>& g)
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| 341 | {
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| 342 | typename graph_traits< leda::GRAPH<vtype,etype> >::out_edge_iterator
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| 343 | i,iend;
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| 344 | for (boost::tie(i,iend) = out_edges(u,g); i != iend; ++i)
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| 345 | if (target(*i,g) == v)
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| 346 | g.del_edge(*i);
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| 347 | }
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| 348 |
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| 349 | template <class vtype, class etype>
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| 350 | void
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| 351 | remove_edge(
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| 352 | typename graph_traits< leda::GRAPH<vtype,etype> >::edge_descriptor e,
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| 353 | leda::GRAPH<vtype,etype>& g)
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| 354 | {
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| 355 | g.del_edge(e);
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| 356 | }
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| 357 |
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| 358 | //===========================================================================
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| 359 | // property maps
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| 360 |
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| 361 | class leda_graph_id_map
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| 362 | : public put_get_helper<int, leda_graph_id_map>
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| 363 | {
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| 364 | public:
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| 365 | typedef readable_property_map_tag category;
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| 366 | typedef int value_type;
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| 367 | typedef int reference;
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| 368 | typedef leda_node key_type;
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| 369 | leda_graph_id_map() { }
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| 370 | template <class T>
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| 371 | long operator[](T x) const { return x->id(); }
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| 372 | };
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| 373 | template <class vtype, class etype>
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| 374 | inline leda_graph_id_map
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| 375 | get(vertex_index_t, const leda::GRAPH<vtype, etype>& g) {
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| 376 | return leda_graph_id_map();
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| 377 | }
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| 378 | template <class vtype, class etype>
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| 379 | inline leda_graph_id_map
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| 380 | get(edge_index_t, const leda::GRAPH<vtype, etype>& g) {
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| 381 | return leda_graph_id_map();
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| 382 | }
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| 383 |
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| 384 | template <class Tag>
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| 385 | struct leda_property_map { };
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| 386 |
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| 387 | template <>
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| 388 | struct leda_property_map<vertex_index_t> {
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| 389 | template <class vtype, class etype>
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| 390 | struct bind_ {
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| 391 | typedef leda_graph_id_map type;
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| 392 | typedef leda_graph_id_map const_type;
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| 393 | };
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| 394 | };
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| 395 | template <>
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| 396 | struct leda_property_map<edge_index_t> {
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| 397 | template <class vtype, class etype>
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| 398 | struct bind_ {
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| 399 | typedef leda_graph_id_map type;
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| 400 | typedef leda_graph_id_map const_type;
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| 401 | };
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| 402 | };
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| 403 |
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| 404 |
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| 405 | template <class Data, class DataRef, class GraphPtr>
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| 406 | class leda_graph_data_map
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| 407 | : public put_get_helper<DataRef,
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| 408 | leda_graph_data_map<Data,DataRef,GraphPtr> >
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| 409 | {
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| 410 | public:
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| 411 | typedef Data value_type;
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| 412 | typedef DataRef reference;
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| 413 | typedef void key_type;
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| 414 | typedef lvalue_property_map_tag category;
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| 415 | leda_graph_data_map(GraphPtr g) : m_g(g) { }
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| 416 | template <class NodeOrEdge>
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| 417 | DataRef operator[](NodeOrEdge x) const { return (*m_g)[x]; }
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| 418 | protected:
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| 419 | GraphPtr m_g;
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| 420 | };
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| 421 |
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| 422 | template <>
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| 423 | struct leda_property_map<vertex_all_t> {
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| 424 | template <class vtype, class etype>
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| 425 | struct bind_ {
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| 426 | typedef leda_graph_data_map<vtype, vtype&, leda::GRAPH<vtype, etype>*> type;
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| 427 | typedef leda_graph_data_map<vtype, const vtype&,
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| 428 | const leda::GRAPH<vtype, etype>*> const_type;
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| 429 | };
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| 430 | };
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| 431 | template <class vtype, class etype >
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| 432 | inline typename property_map< leda::GRAPH<vtype, etype>, vertex_all_t>::type
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| 433 | get(vertex_all_t, leda::GRAPH<vtype, etype>& g) {
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| 434 | typedef typename property_map< leda::GRAPH<vtype, etype>, vertex_all_t>::type
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| 435 | pmap_type;
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| 436 | return pmap_type(&g);
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| 437 | }
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| 438 | template <class vtype, class etype >
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| 439 | inline typename property_map< leda::GRAPH<vtype, etype>, vertex_all_t>::const_type
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| 440 | get(vertex_all_t, const leda::GRAPH<vtype, etype>& g) {
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| 441 | typedef typename property_map< leda::GRAPH<vtype, etype>,
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| 442 | vertex_all_t>::const_type pmap_type;
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| 443 | return pmap_type(&g);
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| 444 | }
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| 445 |
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| 446 | template <>
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| 447 | struct leda_property_map<edge_all_t> {
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| 448 | template <class vtype, class etype>
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| 449 | struct bind_ {
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| 450 | typedef leda_graph_data_map<etype, etype&, leda::GRAPH<vtype, etype>*> type;
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| 451 | typedef leda_graph_data_map<etype, const etype&,
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| 452 | const leda::GRAPH<vtype, etype>*> const_type;
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| 453 | };
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| 454 | };
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| 455 | template <class vtype, class etype >
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| 456 | inline typename property_map< leda::GRAPH<vtype, etype>, edge_all_t>::type
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| 457 | get(edge_all_t, leda::GRAPH<vtype, etype>& g) {
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| 458 | typedef typename property_map< leda::GRAPH<vtype, etype>, edge_all_t>::type
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| 459 | pmap_type;
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| 460 | return pmap_type(&g);
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| 461 | }
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| 462 | template <class vtype, class etype >
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| 463 | inline typename property_map< leda::GRAPH<vtype, etype>, edge_all_t>::const_type
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| 464 | get(edge_all_t, const leda::GRAPH<vtype, etype>& g) {
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| 465 | typedef typename property_map< leda::GRAPH<vtype, etype>,
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| 466 | edge_all_t>::const_type pmap_type;
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| 467 | return pmap_type(&g);
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| 468 | }
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| 469 |
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| 470 | // property map interface to the LEDA node_array class
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| 471 |
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| 472 | template <class E, class ERef, class NodeMapPtr>
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| 473 | class leda_node_property_map
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| 474 | : public put_get_helper<ERef, leda_node_property_map<E, ERef, NodeMapPtr> >
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| 475 | {
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| 476 | public:
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| 477 | typedef E value_type;
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| 478 | typedef ERef reference;
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| 479 | typedef leda_node key_type;
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| 480 | typedef lvalue_property_map_tag category;
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| 481 | leda_node_property_map(NodeMapPtr a) : m_array(a) { }
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| 482 | ERef operator[](leda_node n) const { return (*m_array)[n]; }
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| 483 | protected:
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| 484 | NodeMapPtr m_array;
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| 485 | };
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| 486 | template <class E>
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| 487 | leda_node_property_map<E, const E&, const leda_node_array<E>*>
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| 488 | make_leda_node_property_map(const leda_node_array<E>& a)
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| 489 | {
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| 490 | typedef leda_node_property_map<E, const E&, const leda_node_array<E>*>
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| 491 | pmap_type;
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| 492 | return pmap_type(&a);
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| 493 | }
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| 494 | template <class E>
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| 495 | leda_node_property_map<E, E&, leda_node_array<E>*>
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| 496 | make_leda_node_property_map(leda_node_array<E>& a)
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| 497 | {
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| 498 | typedef leda_node_property_map<E, E&, leda_node_array<E>*> pmap_type;
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| 499 | return pmap_type(&a);
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| 500 | }
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| 501 |
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| 502 | template <class E>
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| 503 | leda_node_property_map<E, const E&, const leda_node_map<E>*>
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| 504 | make_leda_node_property_map(const leda_node_map<E>& a)
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| 505 | {
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| 506 | typedef leda_node_property_map<E,const E&,const leda_node_map<E>*>
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| 507 | pmap_type;
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| 508 | return pmap_type(&a);
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| 509 | }
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| 510 | template <class E>
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| 511 | leda_node_property_map<E, E&, leda_node_map<E>*>
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| 512 | make_leda_node_property_map(leda_node_map<E>& a)
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| 513 | {
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| 514 | typedef leda_node_property_map<E, E&, leda_node_map<E>*> pmap_type;
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| 515 | return pmap_type(&a);
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| 516 | }
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| 517 |
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| 518 | // g++ 'enumeral_type' in template unification not implemented workaround
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| 519 | template <class vtype, class etype, class Tag>
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| 520 | struct property_map<leda::GRAPH<vtype, etype>, Tag> {
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| 521 | typedef typename
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| 522 | leda_property_map<Tag>::template bind_<vtype, etype> map_gen;
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| 523 | typedef typename map_gen::type type;
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| 524 | typedef typename map_gen::const_type const_type;
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| 525 | };
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| 526 |
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| 527 | template <class vtype, class etype, class PropertyTag, class Key>
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| 528 | inline
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| 529 | typename boost::property_traits<
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| 530 | typename boost::property_map<leda::GRAPH<vtype, etype>,PropertyTag>::const_type
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| 531 | >::value_type
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| 532 | get(PropertyTag p, const leda::GRAPH<vtype, etype>& g, const Key& key) {
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| 533 | return get(get(p, g), key);
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| 534 | }
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| 535 |
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| 536 | template <class vtype, class etype, class PropertyTag, class Key,class Value>
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| 537 | inline void
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| 538 | put(PropertyTag p, leda::GRAPH<vtype, etype>& g,
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| 539 | const Key& key, const Value& value)
|
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| 540 | {
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| 541 | typedef typename property_map<leda::GRAPH<vtype, etype>, PropertyTag>::type Map;
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| 542 | Map pmap = get(p, g);
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| 543 | put(pmap, key, value);
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| 544 | }
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| 545 |
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| 546 | } // namespace boost
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| 547 |
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| 548 |
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| 549 | #endif // BOOST_GRAPH_LEDA_HPP
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