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;
|
---|
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) {
|
---|
533 | return get(get(p, g), key);
|
---|
534 | }
|
---|
535 |
|
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536 | template <class vtype, class etype, class PropertyTag, class Key,class Value>
|
---|
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)
|
---|
540 | {
|
---|
541 | typedef typename property_map<leda::GRAPH<vtype, etype>, PropertyTag>::type Map;
|
---|
542 | Map pmap = get(p, g);
|
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543 | put(pmap, key, value);
|
---|
544 | }
|
---|
545 |
|
---|
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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