1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2008 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #ifndef LEMON_EDGE_SET_H |
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20 | #define LEMON_EDGE_SET_H |
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21 | |
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22 | |
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23 | #include <lemon/bits/default_map.h> |
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24 | #include <lemon/bits/edge_set_extender.h> |
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25 | |
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26 | /// \ingroup semi_adaptors |
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27 | /// \file |
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28 | /// \brief EdgeSet classes. |
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29 | /// |
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30 | /// Graphs which use another graph's node-set as own. |
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31 | |
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32 | namespace lemon { |
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33 | |
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34 | template <typename _Graph> |
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35 | class ListEdgeSetBase { |
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36 | public: |
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37 | |
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38 | typedef _Graph Graph; |
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39 | typedef typename Graph::Node Node; |
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40 | typedef typename Graph::NodeIt NodeIt; |
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41 | |
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42 | protected: |
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43 | |
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44 | struct NodeT { |
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45 | int first_out, first_in; |
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46 | NodeT() : first_out(-1), first_in(-1) {} |
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47 | }; |
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48 | |
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49 | typedef DefaultMap<Graph, Node, NodeT> NodesImplBase; |
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50 | |
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51 | NodesImplBase* nodes; |
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52 | |
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53 | struct EdgeT { |
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54 | Node source, target; |
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55 | int next_out, next_in; |
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56 | int prev_out, prev_in; |
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57 | EdgeT() : prev_out(-1), prev_in(-1) {} |
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58 | }; |
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59 | |
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60 | std::vector<EdgeT> edges; |
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61 | |
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62 | int first_edge; |
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63 | int first_free_edge; |
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64 | |
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65 | const Graph* graph; |
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66 | |
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67 | void initalize(const Graph& _graph, NodesImplBase& _nodes) { |
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68 | graph = &_graph; |
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69 | nodes = &_nodes; |
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70 | } |
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71 | |
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72 | public: |
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73 | |
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74 | class Edge { |
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75 | friend class ListEdgeSetBase<Graph>; |
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76 | protected: |
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77 | Edge(int _id) : id(_id) {} |
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78 | int id; |
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79 | public: |
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80 | Edge() {} |
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81 | Edge(Invalid) : id(-1) {} |
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82 | bool operator==(const Edge& edge) const { return id == edge.id; } |
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83 | bool operator!=(const Edge& edge) const { return id != edge.id; } |
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84 | bool operator<(const Edge& edge) const { return id < edge.id; } |
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85 | }; |
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86 | |
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87 | ListEdgeSetBase() : first_edge(-1), first_free_edge(-1) {} |
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88 | |
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89 | Edge addEdge(const Node& u, const Node& v) { |
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90 | int n; |
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91 | if (first_free_edge == -1) { |
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92 | n = edges.size(); |
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93 | edges.push_back(EdgeT()); |
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94 | } else { |
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95 | n = first_free_edge; |
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96 | first_free_edge = edges[first_free_edge].next_in; |
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97 | } |
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98 | edges[n].next_in = (*nodes)[v].first_in; |
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99 | if ((*nodes)[v].first_in != -1) { |
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100 | edges[(*nodes)[v].first_in].prev_in = n; |
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101 | } |
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102 | (*nodes)[v].first_in = n; |
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103 | edges[n].next_out = (*nodes)[u].first_out; |
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104 | if ((*nodes)[u].first_out != -1) { |
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105 | edges[(*nodes)[u].first_out].prev_out = n; |
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106 | } |
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107 | (*nodes)[u].first_out = n; |
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108 | edges[n].source = u; |
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109 | edges[n].target = v; |
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110 | return Edge(n); |
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111 | } |
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112 | |
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113 | void erase(const Edge& edge) { |
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114 | int n = edge.id; |
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115 | if (edges[n].prev_in != -1) { |
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116 | edges[edges[n].prev_in].next_in = edges[n].next_in; |
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117 | } else { |
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118 | (*nodes)[edges[n].target].first_in = edges[n].next_in; |
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119 | } |
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120 | if (edges[n].next_in != -1) { |
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121 | edges[edges[n].next_in].prev_in = edges[n].prev_in; |
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122 | } |
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123 | |
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124 | if (edges[n].prev_out != -1) { |
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125 | edges[edges[n].prev_out].next_out = edges[n].next_out; |
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126 | } else { |
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127 | (*nodes)[edges[n].source].first_out = edges[n].next_out; |
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128 | } |
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129 | if (edges[n].next_out != -1) { |
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130 | edges[edges[n].next_out].prev_out = edges[n].prev_out; |
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131 | } |
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132 | |
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133 | } |
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134 | |
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135 | void clear() { |
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136 | Node node; |
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137 | for (first(node); node != INVALID; next(node)) { |
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138 | (*nodes)[node].first_in = -1; |
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139 | (*nodes)[node].first_out = -1; |
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140 | } |
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141 | edges.clear(); |
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142 | first_edge = -1; |
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143 | first_free_edge = -1; |
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144 | } |
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145 | |
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146 | void first(Node& node) const { |
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147 | graph->first(node); |
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148 | } |
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149 | |
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150 | void next(Node& node) const { |
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151 | graph->next(node); |
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152 | } |
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153 | |
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154 | void first(Edge& edge) const { |
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155 | Node node; |
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156 | for (first(node); node != INVALID && (*nodes)[node].first_in == -1; |
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157 | next(node)) { } |
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158 | edge.id = (node == INVALID) ? -1 : (*nodes)[node].first_in; |
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159 | } |
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160 | |
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161 | void next(Edge& edge) const { |
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162 | if (edges[edge.id].next_in != -1) { |
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163 | edge.id = edges[edge.id].next_in; |
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164 | } else { |
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165 | Node node = edges[edge.id].target; |
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166 | for (next(node); node != INVALID && (*nodes)[node].first_in == -1; |
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167 | next(node)) { } |
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168 | edge.id = (node == INVALID) ? -1 : (*nodes)[node].first_in; |
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169 | } |
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170 | } |
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171 | |
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172 | void firstOut(Edge& edge, const Node& node) const { |
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173 | edge.id = (*nodes)[node].first_out; |
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174 | } |
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175 | |
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176 | void nextOut(Edge& edge) const { |
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177 | edge.id = edges[edge.id].next_out; |
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178 | } |
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179 | |
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180 | void firstIn(Edge& edge, const Node& node) const { |
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181 | edge.id = (*nodes)[node].first_in; |
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182 | } |
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183 | |
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184 | void nextIn(Edge& edge) const { |
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185 | edge.id = edges[edge.id].next_in; |
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186 | } |
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187 | |
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188 | int id(const Node& node) const { return graph->id(node); } |
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189 | int id(const Edge& edge) const { return edge.id; } |
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190 | |
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191 | Node nodeFromId(int ix) const { return graph->nodeFromId(ix); } |
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192 | Edge edgeFromId(int ix) const { return Edge(ix); } |
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193 | |
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194 | int maxNodeId() const { return graph->maxNodeId(); }; |
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195 | int maxEdgeId() const { return edges.size() - 1; } |
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196 | |
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197 | Node source(const Edge& edge) const { return edges[edge.id].source;} |
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198 | Node target(const Edge& edge) const { return edges[edge.id].target;} |
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199 | |
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200 | typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier; |
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201 | |
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202 | NodeNotifier& notifier(Node) const { |
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203 | return graph->notifier(Node()); |
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204 | } |
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205 | |
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206 | template <typename _Value> |
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207 | class NodeMap : public Graph::template NodeMap<_Value> { |
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208 | public: |
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209 | |
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210 | typedef typename _Graph::template NodeMap<_Value> Parent; |
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211 | |
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212 | explicit NodeMap(const ListEdgeSetBase<Graph>& edgeset) |
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213 | : Parent(*edgeset.graph) {} |
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214 | |
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215 | NodeMap(const ListEdgeSetBase<Graph>& edgeset, const _Value& value) |
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216 | : Parent(*edgeset.graph, value) {} |
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217 | |
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218 | NodeMap& operator=(const NodeMap& cmap) { |
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219 | return operator=<NodeMap>(cmap); |
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220 | } |
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221 | |
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222 | template <typename CMap> |
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223 | NodeMap& operator=(const CMap& cmap) { |
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224 | Parent::operator=(cmap); |
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225 | return *this; |
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226 | } |
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227 | }; |
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228 | |
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229 | }; |
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230 | |
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231 | /// \ingroup semi_adaptors |
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232 | /// |
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233 | /// \brief Graph using a node set of another graph and an |
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234 | /// own edge set. |
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235 | /// |
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236 | /// This structure can be used to establish another graph over a node set |
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237 | /// of an existing one. The node iterator will go through the nodes of the |
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238 | /// original graph. |
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239 | /// |
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240 | /// \param _Graph The type of the graph which shares its node set with |
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241 | /// this class. Its interface must conform to the \ref concepts::Graph |
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242 | /// "Graph" concept. |
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243 | /// |
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244 | template <typename _Graph> |
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245 | class ListEdgeSet : public EdgeSetExtender<ListEdgeSetBase<_Graph> > { |
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246 | |
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247 | public: |
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248 | |
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249 | typedef EdgeSetExtender<ListEdgeSetBase<_Graph> > Parent; |
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250 | |
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251 | typedef typename Parent::Node Node; |
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252 | typedef typename Parent::Edge Edge; |
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253 | |
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254 | typedef _Graph Graph; |
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255 | |
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256 | |
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257 | typedef typename Parent::NodesImplBase NodesImplBase; |
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258 | |
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259 | void eraseNode(const Node& node) { |
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260 | Edge edge; |
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261 | Parent::firstOut(edge, node); |
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262 | while (edge != INVALID ) { |
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263 | erase(edge); |
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264 | Parent::firstOut(edge, node); |
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265 | } |
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266 | |
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267 | Parent::firstIn(edge, node); |
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268 | while (edge != INVALID ) { |
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269 | erase(edge); |
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270 | Parent::firstIn(edge, node); |
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271 | } |
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272 | } |
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273 | |
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274 | void clearNodes() { |
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275 | Parent::clear(); |
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276 | } |
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277 | |
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278 | class NodesImpl : public NodesImplBase { |
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279 | public: |
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280 | typedef NodesImplBase Parent; |
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281 | |
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282 | NodesImpl(const Graph& graph, ListEdgeSet& edgeset) |
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283 | : Parent(graph), _edgeset(edgeset) {} |
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284 | |
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285 | virtual ~NodesImpl() {} |
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286 | |
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287 | protected: |
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288 | |
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289 | virtual void erase(const Node& node) { |
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290 | _edgeset.eraseNode(node); |
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291 | Parent::erase(node); |
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292 | } |
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293 | virtual void erase(const std::vector<Node>& nodes) { |
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294 | for (int i = 0; i < int(nodes.size()); ++i) { |
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295 | _edgeset.eraseNode(nodes[i]); |
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296 | } |
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297 | Parent::erase(nodes); |
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298 | } |
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299 | virtual void clear() { |
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300 | _edgeset.clearNodes(); |
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301 | Parent::clear(); |
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302 | } |
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303 | |
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304 | private: |
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305 | ListEdgeSet& _edgeset; |
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306 | }; |
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307 | |
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308 | NodesImpl nodes; |
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309 | |
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310 | public: |
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311 | |
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312 | /// \brief Constructor of the adaptor. |
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313 | /// |
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314 | /// Constructor of the adaptor. |
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315 | ListEdgeSet(const Graph& graph) : nodes(graph, *this) { |
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316 | Parent::initalize(graph, nodes); |
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317 | } |
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318 | |
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319 | }; |
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320 | |
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321 | template <typename _Graph> |
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322 | class ListUEdgeSetBase { |
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323 | public: |
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324 | |
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325 | typedef _Graph Graph; |
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326 | typedef typename Graph::Node Node; |
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327 | typedef typename Graph::NodeIt NodeIt; |
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328 | |
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329 | protected: |
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330 | |
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331 | struct NodeT { |
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332 | int first_out; |
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333 | NodeT() : first_out(-1) {} |
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334 | }; |
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335 | |
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336 | typedef DefaultMap<Graph, Node, NodeT> NodesImplBase; |
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337 | |
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338 | NodesImplBase* nodes; |
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339 | |
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340 | struct EdgeT { |
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341 | Node target; |
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342 | int prev_out, next_out; |
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343 | EdgeT() : prev_out(-1), next_out(-1) {} |
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344 | }; |
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345 | |
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346 | std::vector<EdgeT> edges; |
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347 | |
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348 | int first_edge; |
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349 | int first_free_edge; |
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350 | |
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351 | const Graph* graph; |
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352 | |
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353 | void initalize(const Graph& _graph, NodesImplBase& _nodes) { |
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354 | graph = &_graph; |
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355 | nodes = &_nodes; |
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356 | } |
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357 | |
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358 | public: |
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359 | |
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360 | class UEdge { |
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361 | friend class ListUEdgeSetBase; |
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362 | protected: |
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363 | |
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364 | int id; |
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365 | explicit UEdge(int _id) { id = _id;} |
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366 | |
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367 | public: |
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368 | UEdge() {} |
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369 | UEdge (Invalid) { id = -1; } |
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370 | bool operator==(const UEdge& edge) const {return id == edge.id;} |
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371 | bool operator!=(const UEdge& edge) const {return id != edge.id;} |
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372 | bool operator<(const UEdge& edge) const {return id < edge.id;} |
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373 | }; |
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374 | |
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375 | class Edge { |
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376 | friend class ListUEdgeSetBase; |
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377 | protected: |
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378 | Edge(int _id) : id(_id) {} |
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379 | int id; |
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380 | public: |
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381 | operator UEdge() const { return uEdgeFromId(id / 2); } |
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382 | |
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383 | Edge() {} |
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384 | Edge(Invalid) : id(-1) {} |
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385 | bool operator==(const Edge& edge) const { return id == edge.id; } |
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386 | bool operator!=(const Edge& edge) const { return id != edge.id; } |
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387 | bool operator<(const Edge& edge) const { return id < edge.id; } |
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388 | }; |
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389 | |
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390 | ListUEdgeSetBase() : first_edge(-1), first_free_edge(-1) {} |
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391 | |
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392 | UEdge addEdge(const Node& u, const Node& v) { |
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393 | int n; |
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394 | |
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395 | if (first_free_edge == -1) { |
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396 | n = edges.size(); |
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397 | edges.push_back(EdgeT()); |
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398 | edges.push_back(EdgeT()); |
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399 | } else { |
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400 | n = first_free_edge; |
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401 | first_free_edge = edges[n].next_out; |
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402 | } |
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403 | |
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404 | edges[n].target = u; |
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405 | edges[n | 1].target = v; |
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406 | |
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407 | edges[n].next_out = (*nodes)[v].first_out; |
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408 | if ((*nodes)[v].first_out != -1) { |
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409 | edges[(*nodes)[v].first_out].prev_out = n; |
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410 | } |
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411 | (*nodes)[v].first_out = n; |
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412 | edges[n].prev_out = -1; |
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413 | |
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414 | if ((*nodes)[u].first_out != -1) { |
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415 | edges[(*nodes)[u].first_out].prev_out = (n | 1); |
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416 | } |
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417 | edges[n | 1].next_out = (*nodes)[u].first_out; |
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418 | (*nodes)[u].first_out = (n | 1); |
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419 | edges[n | 1].prev_out = -1; |
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420 | |
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421 | return UEdge(n / 2); |
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422 | } |
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423 | |
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424 | void erase(const UEdge& edge) { |
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425 | int n = edge.id * 2; |
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426 | |
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427 | if (edges[n].next_out != -1) { |
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428 | edges[edges[n].next_out].prev_out = edges[n].prev_out; |
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429 | } |
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430 | |
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431 | if (edges[n].prev_out != -1) { |
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432 | edges[edges[n].prev_out].next_out = edges[n].next_out; |
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433 | } else { |
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434 | (*nodes)[edges[n | 1].target].first_out = edges[n].next_out; |
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435 | } |
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436 | |
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437 | if (edges[n | 1].next_out != -1) { |
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438 | edges[edges[n | 1].next_out].prev_out = edges[n | 1].prev_out; |
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439 | } |
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440 | |
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441 | if (edges[n | 1].prev_out != -1) { |
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442 | edges[edges[n | 1].prev_out].next_out = edges[n | 1].next_out; |
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443 | } else { |
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444 | (*nodes)[edges[n].target].first_out = edges[n | 1].next_out; |
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445 | } |
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446 | |
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447 | edges[n].next_out = first_free_edge; |
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448 | first_free_edge = n; |
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449 | |
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450 | } |
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451 | |
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452 | void clear() { |
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453 | Node node; |
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454 | for (first(node); node != INVALID; next(node)) { |
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455 | (*nodes)[node].first_out = -1; |
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456 | } |
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457 | edges.clear(); |
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458 | first_edge = -1; |
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459 | first_free_edge = -1; |
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460 | } |
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461 | |
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462 | void first(Node& node) const { |
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463 | graph->first(node); |
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464 | } |
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465 | |
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466 | void next(Node& node) const { |
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467 | graph->next(node); |
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468 | } |
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469 | |
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470 | void first(Edge& edge) const { |
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471 | Node node; |
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472 | first(node); |
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473 | while (node != INVALID && (*nodes)[node].first_out == -1) { |
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474 | next(node); |
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475 | } |
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476 | edge.id = (node == INVALID) ? -1 : (*nodes)[node].first_out; |
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477 | } |
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478 | |
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479 | void next(Edge& edge) const { |
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480 | if (edges[edge.id].next_out != -1) { |
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481 | edge.id = edges[edge.id].next_out; |
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482 | } else { |
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483 | Node node = edges[edge.id ^ 1].target; |
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484 | next(node); |
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485 | while(node != INVALID && (*nodes)[node].first_out == -1) { |
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486 | next(node); |
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487 | } |
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488 | edge.id = (node == INVALID) ? -1 : (*nodes)[node].first_out; |
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489 | } |
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490 | } |
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491 | |
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492 | void first(UEdge& uedge) const { |
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493 | Node node; |
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494 | first(node); |
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495 | while (node != INVALID) { |
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496 | uedge.id = (*nodes)[node].first_out; |
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497 | while ((uedge.id & 1) != 1) { |
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498 | uedge.id = edges[uedge.id].next_out; |
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499 | } |
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500 | if (uedge.id != -1) { |
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501 | uedge.id /= 2; |
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502 | return; |
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503 | } |
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504 | next(node); |
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505 | } |
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506 | uedge.id = -1; |
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507 | } |
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508 | |
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509 | void next(UEdge& uedge) const { |
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510 | Node node = edges[uedge.id * 2].target; |
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511 | uedge.id = edges[(uedge.id * 2) | 1].next_out; |
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512 | while ((uedge.id & 1) != 1) { |
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513 | uedge.id = edges[uedge.id].next_out; |
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514 | } |
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515 | if (uedge.id != -1) { |
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516 | uedge.id /= 2; |
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517 | return; |
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518 | } |
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519 | next(node); |
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520 | while (node != INVALID) { |
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521 | uedge.id = (*nodes)[node].first_out; |
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522 | while ((uedge.id & 1) != 1) { |
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523 | uedge.id = edges[uedge.id].next_out; |
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524 | } |
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525 | if (uedge.id != -1) { |
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526 | uedge.id /= 2; |
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527 | return; |
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528 | } |
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529 | next(node); |
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530 | } |
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531 | uedge.id = -1; |
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532 | } |
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533 | |
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534 | void firstOut(Edge& edge, const Node& node) const { |
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535 | edge.id = (*nodes)[node].first_out; |
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536 | } |
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537 | |
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538 | void nextOut(Edge& edge) const { |
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539 | edge.id = edges[edge.id].next_out; |
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540 | } |
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541 | |
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542 | void firstIn(Edge& edge, const Node& node) const { |
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543 | edge.id = (((*nodes)[node].first_out) ^ 1); |
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544 | if (edge.id == -2) edge.id = -1; |
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545 | } |
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546 | |
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547 | void nextIn(Edge& edge) const { |
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548 | edge.id = ((edges[edge.id ^ 1].next_out) ^ 1); |
---|
549 | if (edge.id == -2) edge.id = -1; |
---|
550 | } |
---|
551 | |
---|
552 | void firstInc(UEdge &edge, bool& dir, const Node& node) const { |
---|
553 | int de = (*nodes)[node].first_out; |
---|
554 | if (de != -1 ) { |
---|
555 | edge.id = de / 2; |
---|
556 | dir = ((de & 1) == 1); |
---|
557 | } else { |
---|
558 | edge.id = -1; |
---|
559 | dir = true; |
---|
560 | } |
---|
561 | } |
---|
562 | void nextInc(UEdge &edge, bool& dir) const { |
---|
563 | int de = (edges[(edge.id * 2) | (dir ? 1 : 0)].next_out); |
---|
564 | if (de != -1 ) { |
---|
565 | edge.id = de / 2; |
---|
566 | dir = ((de & 1) == 1); |
---|
567 | } else { |
---|
568 | edge.id = -1; |
---|
569 | dir = true; |
---|
570 | } |
---|
571 | } |
---|
572 | |
---|
573 | static bool direction(Edge edge) { |
---|
574 | return (edge.id & 1) == 1; |
---|
575 | } |
---|
576 | |
---|
577 | static Edge direct(UEdge uedge, bool dir) { |
---|
578 | return Edge(uedge.id * 2 + (dir ? 1 : 0)); |
---|
579 | } |
---|
580 | |
---|
581 | int id(const Node& node) const { return graph->id(node); } |
---|
582 | static int id(Edge e) { return e.id; } |
---|
583 | static int id(UEdge e) { return e.id; } |
---|
584 | |
---|
585 | Node nodeFromId(int id) const { return graph->nodeFromId(id); } |
---|
586 | static Edge edgeFromId(int id) { return Edge(id);} |
---|
587 | static UEdge uEdgeFromId(int id) { return UEdge(id);} |
---|
588 | |
---|
589 | int maxNodeId() const { return graph->maxNodeId(); }; |
---|
590 | int maxUEdgeId() const { return edges.size() / 2 - 1; } |
---|
591 | int maxEdgeId() const { return edges.size()-1; } |
---|
592 | |
---|
593 | Node source(Edge e) const { return edges[e.id ^ 1].target; } |
---|
594 | Node target(Edge e) const { return edges[e.id].target; } |
---|
595 | |
---|
596 | Node source(UEdge e) const { return edges[2 * e.id].target; } |
---|
597 | Node target(UEdge e) const { return edges[2 * e.id + 1].target; } |
---|
598 | |
---|
599 | typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier; |
---|
600 | |
---|
601 | NodeNotifier& notifier(Node) const { |
---|
602 | return graph->notifier(Node()); |
---|
603 | } |
---|
604 | |
---|
605 | template <typename _Value> |
---|
606 | class NodeMap : public Graph::template NodeMap<_Value> { |
---|
607 | public: |
---|
608 | |
---|
609 | typedef typename _Graph::template NodeMap<_Value> Parent; |
---|
610 | |
---|
611 | explicit NodeMap(const ListUEdgeSetBase<Graph>& edgeset) |
---|
612 | : Parent(*edgeset.graph) {} |
---|
613 | |
---|
614 | NodeMap(const ListUEdgeSetBase<Graph>& edgeset, const _Value& value) |
---|
615 | : Parent(*edgeset.graph, value) {} |
---|
616 | |
---|
617 | NodeMap& operator=(const NodeMap& cmap) { |
---|
618 | return operator=<NodeMap>(cmap); |
---|
619 | } |
---|
620 | |
---|
621 | template <typename CMap> |
---|
622 | NodeMap& operator=(const CMap& cmap) { |
---|
623 | Parent::operator=(cmap); |
---|
624 | return *this; |
---|
625 | } |
---|
626 | }; |
---|
627 | |
---|
628 | }; |
---|
629 | |
---|
630 | /// \ingroup semi_adaptors |
---|
631 | /// |
---|
632 | /// \brief Graph using a node set of another graph and an |
---|
633 | /// own uedge set. |
---|
634 | /// |
---|
635 | /// This structure can be used to establish another graph over a node set |
---|
636 | /// of an existing one. The node iterator will go through the nodes of the |
---|
637 | /// original graph. |
---|
638 | /// |
---|
639 | /// \param _Graph The type of the graph which shares its node set with |
---|
640 | /// this class. Its interface must conform to the \ref concepts::Graph |
---|
641 | /// "Graph" concept. |
---|
642 | /// |
---|
643 | /// In the edge extension and removing it conforms to the |
---|
644 | /// \ref concepts::UGraph "UGraph" concept. |
---|
645 | template <typename _Graph> |
---|
646 | class ListUEdgeSet : public UEdgeSetExtender<ListUEdgeSetBase<_Graph> > { |
---|
647 | |
---|
648 | public: |
---|
649 | |
---|
650 | typedef UEdgeSetExtender<ListUEdgeSetBase<_Graph> > Parent; |
---|
651 | |
---|
652 | typedef typename Parent::Node Node; |
---|
653 | typedef typename Parent::Edge Edge; |
---|
654 | |
---|
655 | typedef _Graph Graph; |
---|
656 | |
---|
657 | |
---|
658 | typedef typename Parent::NodesImplBase NodesImplBase; |
---|
659 | |
---|
660 | void eraseNode(const Node& node) { |
---|
661 | Edge edge; |
---|
662 | Parent::firstOut(edge, node); |
---|
663 | while (edge != INVALID ) { |
---|
664 | erase(edge); |
---|
665 | Parent::firstOut(edge, node); |
---|
666 | } |
---|
667 | |
---|
668 | } |
---|
669 | |
---|
670 | void clearNodes() { |
---|
671 | Parent::clear(); |
---|
672 | } |
---|
673 | |
---|
674 | class NodesImpl : public NodesImplBase { |
---|
675 | public: |
---|
676 | typedef NodesImplBase Parent; |
---|
677 | |
---|
678 | NodesImpl(const Graph& graph, ListUEdgeSet& edgeset) |
---|
679 | : Parent(graph), _edgeset(edgeset) {} |
---|
680 | |
---|
681 | virtual ~NodesImpl() {} |
---|
682 | |
---|
683 | protected: |
---|
684 | |
---|
685 | virtual void erase(const Node& node) { |
---|
686 | _edgeset.eraseNode(node); |
---|
687 | Parent::erase(node); |
---|
688 | } |
---|
689 | virtual void erase(const std::vector<Node>& nodes) { |
---|
690 | for (int i = 0; i < int(nodes.size()); ++i) { |
---|
691 | _edgeset.eraseNode(nodes[i]); |
---|
692 | } |
---|
693 | Parent::erase(nodes); |
---|
694 | } |
---|
695 | virtual void clear() { |
---|
696 | _edgeset.clearNodes(); |
---|
697 | Parent::clear(); |
---|
698 | } |
---|
699 | |
---|
700 | private: |
---|
701 | ListUEdgeSet& _edgeset; |
---|
702 | }; |
---|
703 | |
---|
704 | NodesImpl nodes; |
---|
705 | |
---|
706 | public: |
---|
707 | |
---|
708 | /// \brief Constructor of the adaptor. |
---|
709 | /// |
---|
710 | /// Constructor of the adaptor. |
---|
711 | ListUEdgeSet(const Graph& graph) : nodes(graph, *this) { |
---|
712 | Parent::initalize(graph, nodes); |
---|
713 | } |
---|
714 | |
---|
715 | }; |
---|
716 | |
---|
717 | template <typename _Graph> |
---|
718 | class SmartEdgeSetBase { |
---|
719 | public: |
---|
720 | |
---|
721 | typedef _Graph Graph; |
---|
722 | typedef typename Graph::Node Node; |
---|
723 | typedef typename Graph::NodeIt NodeIt; |
---|
724 | |
---|
725 | protected: |
---|
726 | |
---|
727 | struct NodeT { |
---|
728 | int first_out, first_in; |
---|
729 | NodeT() : first_out(-1), first_in(-1) {} |
---|
730 | }; |
---|
731 | |
---|
732 | typedef DefaultMap<Graph, Node, NodeT> NodesImplBase; |
---|
733 | |
---|
734 | NodesImplBase* nodes; |
---|
735 | |
---|
736 | struct EdgeT { |
---|
737 | Node source, target; |
---|
738 | int next_out, next_in; |
---|
739 | EdgeT() {} |
---|
740 | }; |
---|
741 | |
---|
742 | std::vector<EdgeT> edges; |
---|
743 | |
---|
744 | const Graph* graph; |
---|
745 | |
---|
746 | void initalize(const Graph& _graph, NodesImplBase& _nodes) { |
---|
747 | graph = &_graph; |
---|
748 | nodes = &_nodes; |
---|
749 | } |
---|
750 | |
---|
751 | public: |
---|
752 | |
---|
753 | class Edge { |
---|
754 | friend class SmartEdgeSetBase<Graph>; |
---|
755 | protected: |
---|
756 | Edge(int _id) : id(_id) {} |
---|
757 | int id; |
---|
758 | public: |
---|
759 | Edge() {} |
---|
760 | Edge(Invalid) : id(-1) {} |
---|
761 | bool operator==(const Edge& edge) const { return id == edge.id; } |
---|
762 | bool operator!=(const Edge& edge) const { return id != edge.id; } |
---|
763 | bool operator<(const Edge& edge) const { return id < edge.id; } |
---|
764 | }; |
---|
765 | |
---|
766 | SmartEdgeSetBase() {} |
---|
767 | |
---|
768 | Edge addEdge(const Node& u, const Node& v) { |
---|
769 | int n = edges.size(); |
---|
770 | edges.push_back(EdgeT()); |
---|
771 | edges[n].next_in = (*nodes)[v].first_in; |
---|
772 | (*nodes)[v].first_in = n; |
---|
773 | edges[n].next_out = (*nodes)[u].first_out; |
---|
774 | (*nodes)[u].first_out = n; |
---|
775 | edges[n].source = u; |
---|
776 | edges[n].target = v; |
---|
777 | return Edge(n); |
---|
778 | } |
---|
779 | |
---|
780 | void clear() { |
---|
781 | Node node; |
---|
782 | for (first(node); node != INVALID; next(node)) { |
---|
783 | (*nodes)[node].first_in = -1; |
---|
784 | (*nodes)[node].first_out = -1; |
---|
785 | } |
---|
786 | edges.clear(); |
---|
787 | } |
---|
788 | |
---|
789 | void first(Node& node) const { |
---|
790 | graph->first(node); |
---|
791 | } |
---|
792 | |
---|
793 | void next(Node& node) const { |
---|
794 | graph->next(node); |
---|
795 | } |
---|
796 | |
---|
797 | void first(Edge& edge) const { |
---|
798 | edge.id = edges.size() - 1; |
---|
799 | } |
---|
800 | |
---|
801 | void next(Edge& edge) const { |
---|
802 | --edge.id; |
---|
803 | } |
---|
804 | |
---|
805 | void firstOut(Edge& edge, const Node& node) const { |
---|
806 | edge.id = (*nodes)[node].first_out; |
---|
807 | } |
---|
808 | |
---|
809 | void nextOut(Edge& edge) const { |
---|
810 | edge.id = edges[edge.id].next_out; |
---|
811 | } |
---|
812 | |
---|
813 | void firstIn(Edge& edge, const Node& node) const { |
---|
814 | edge.id = (*nodes)[node].first_in; |
---|
815 | } |
---|
816 | |
---|
817 | void nextIn(Edge& edge) const { |
---|
818 | edge.id = edges[edge.id].next_in; |
---|
819 | } |
---|
820 | |
---|
821 | int id(const Node& node) const { return graph->id(node); } |
---|
822 | int id(const Edge& edge) const { return edge.id; } |
---|
823 | |
---|
824 | Node nodeFromId(int ix) const { return graph->nodeFromId(ix); } |
---|
825 | Edge edgeFromId(int ix) const { return Edge(ix); } |
---|
826 | |
---|
827 | int maxNodeId() const { return graph->maxNodeId(); }; |
---|
828 | int maxEdgeId() const { return edges.size() - 1; } |
---|
829 | |
---|
830 | Node source(const Edge& edge) const { return edges[edge.id].source;} |
---|
831 | Node target(const Edge& edge) const { return edges[edge.id].target;} |
---|
832 | |
---|
833 | typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier; |
---|
834 | |
---|
835 | NodeNotifier& notifier(Node) const { |
---|
836 | return graph->notifier(Node()); |
---|
837 | } |
---|
838 | |
---|
839 | template <typename _Value> |
---|
840 | class NodeMap : public Graph::template NodeMap<_Value> { |
---|
841 | public: |
---|
842 | |
---|
843 | typedef typename _Graph::template NodeMap<_Value> Parent; |
---|
844 | |
---|
845 | explicit NodeMap(const SmartEdgeSetBase<Graph>& edgeset) |
---|
846 | : Parent(*edgeset.graph) { } |
---|
847 | |
---|
848 | NodeMap(const SmartEdgeSetBase<Graph>& edgeset, const _Value& value) |
---|
849 | : Parent(*edgeset.graph, value) { } |
---|
850 | |
---|
851 | NodeMap& operator=(const NodeMap& cmap) { |
---|
852 | return operator=<NodeMap>(cmap); |
---|
853 | } |
---|
854 | |
---|
855 | template <typename CMap> |
---|
856 | NodeMap& operator=(const CMap& cmap) { |
---|
857 | Parent::operator=(cmap); |
---|
858 | return *this; |
---|
859 | } |
---|
860 | }; |
---|
861 | |
---|
862 | }; |
---|
863 | |
---|
864 | |
---|
865 | /// \ingroup semi_adaptors |
---|
866 | /// |
---|
867 | /// \brief Graph using a node set of another graph and an |
---|
868 | /// own edge set. |
---|
869 | /// |
---|
870 | /// This structure can be used to establish another graph over a node set |
---|
871 | /// of an existing one. The node iterator will go through the nodes of the |
---|
872 | /// original graph. |
---|
873 | /// |
---|
874 | /// \param _Graph The type of the graph which shares its node set with |
---|
875 | /// this class. Its interface must conform to the \ref concepts::Graph |
---|
876 | /// "Graph" concept. |
---|
877 | /// |
---|
878 | /// In the edge extension and removing it conforms to the |
---|
879 | /// \ref concepts::Graph "Graph" concept. |
---|
880 | template <typename _Graph> |
---|
881 | class SmartEdgeSet : public EdgeSetExtender<SmartEdgeSetBase<_Graph> > { |
---|
882 | |
---|
883 | public: |
---|
884 | |
---|
885 | typedef EdgeSetExtender<SmartEdgeSetBase<_Graph> > Parent; |
---|
886 | |
---|
887 | typedef typename Parent::Node Node; |
---|
888 | typedef typename Parent::Edge Edge; |
---|
889 | |
---|
890 | typedef _Graph Graph; |
---|
891 | |
---|
892 | protected: |
---|
893 | |
---|
894 | typedef typename Parent::NodesImplBase NodesImplBase; |
---|
895 | |
---|
896 | void eraseNode(const Node& node) { |
---|
897 | if (Parent::InEdgeIt(*this, node) == INVALID && |
---|
898 | Parent::OutEdgeIt(*this, node) == INVALID) { |
---|
899 | return; |
---|
900 | } |
---|
901 | throw typename NodesImplBase::Notifier::ImmediateDetach(); |
---|
902 | } |
---|
903 | |
---|
904 | void clearNodes() { |
---|
905 | Parent::clear(); |
---|
906 | } |
---|
907 | |
---|
908 | class NodesImpl : public NodesImplBase { |
---|
909 | public: |
---|
910 | typedef NodesImplBase Parent; |
---|
911 | |
---|
912 | NodesImpl(const Graph& graph, SmartEdgeSet& edgeset) |
---|
913 | : Parent(graph), _edgeset(edgeset) {} |
---|
914 | |
---|
915 | virtual ~NodesImpl() {} |
---|
916 | |
---|
917 | bool attached() const { |
---|
918 | return Parent::attached(); |
---|
919 | } |
---|
920 | |
---|
921 | protected: |
---|
922 | |
---|
923 | virtual void erase(const Node& node) { |
---|
924 | try { |
---|
925 | _edgeset.eraseNode(node); |
---|
926 | Parent::erase(node); |
---|
927 | } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) { |
---|
928 | Parent::clear(); |
---|
929 | throw; |
---|
930 | } |
---|
931 | } |
---|
932 | virtual void erase(const std::vector<Node>& nodes) { |
---|
933 | try { |
---|
934 | for (int i = 0; i < int(nodes.size()); ++i) { |
---|
935 | _edgeset.eraseNode(nodes[i]); |
---|
936 | } |
---|
937 | Parent::erase(nodes); |
---|
938 | } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) { |
---|
939 | Parent::clear(); |
---|
940 | throw; |
---|
941 | } |
---|
942 | } |
---|
943 | virtual void clear() { |
---|
944 | _edgeset.clearNodes(); |
---|
945 | Parent::clear(); |
---|
946 | } |
---|
947 | |
---|
948 | private: |
---|
949 | SmartEdgeSet& _edgeset; |
---|
950 | }; |
---|
951 | |
---|
952 | NodesImpl nodes; |
---|
953 | |
---|
954 | public: |
---|
955 | |
---|
956 | /// \brief Constructor of the adaptor. |
---|
957 | /// |
---|
958 | /// Constructor of the adaptor. |
---|
959 | SmartEdgeSet(const Graph& graph) : nodes(graph, *this) { |
---|
960 | Parent::initalize(graph, nodes); |
---|
961 | } |
---|
962 | |
---|
963 | bool valid() const { |
---|
964 | return nodes.attached(); |
---|
965 | } |
---|
966 | |
---|
967 | }; |
---|
968 | |
---|
969 | |
---|
970 | template <typename _Graph> |
---|
971 | class SmartUEdgeSetBase { |
---|
972 | public: |
---|
973 | |
---|
974 | typedef _Graph Graph; |
---|
975 | typedef typename Graph::Node Node; |
---|
976 | typedef typename Graph::NodeIt NodeIt; |
---|
977 | |
---|
978 | protected: |
---|
979 | |
---|
980 | struct NodeT { |
---|
981 | int first_out; |
---|
982 | NodeT() : first_out(-1) {} |
---|
983 | }; |
---|
984 | |
---|
985 | typedef DefaultMap<Graph, Node, NodeT> NodesImplBase; |
---|
986 | |
---|
987 | NodesImplBase* nodes; |
---|
988 | |
---|
989 | struct EdgeT { |
---|
990 | Node target; |
---|
991 | int next_out; |
---|
992 | EdgeT() {} |
---|
993 | }; |
---|
994 | |
---|
995 | std::vector<EdgeT> edges; |
---|
996 | |
---|
997 | const Graph* graph; |
---|
998 | |
---|
999 | void initalize(const Graph& _graph, NodesImplBase& _nodes) { |
---|
1000 | graph = &_graph; |
---|
1001 | nodes = &_nodes; |
---|
1002 | } |
---|
1003 | |
---|
1004 | public: |
---|
1005 | |
---|
1006 | class UEdge { |
---|
1007 | friend class SmartUEdgeSetBase; |
---|
1008 | protected: |
---|
1009 | |
---|
1010 | int id; |
---|
1011 | explicit UEdge(int _id) { id = _id;} |
---|
1012 | |
---|
1013 | public: |
---|
1014 | UEdge() {} |
---|
1015 | UEdge (Invalid) { id = -1; } |
---|
1016 | bool operator==(const UEdge& edge) const {return id == edge.id;} |
---|
1017 | bool operator!=(const UEdge& edge) const {return id != edge.id;} |
---|
1018 | bool operator<(const UEdge& edge) const {return id < edge.id;} |
---|
1019 | }; |
---|
1020 | |
---|
1021 | class Edge { |
---|
1022 | friend class SmartUEdgeSetBase; |
---|
1023 | protected: |
---|
1024 | Edge(int _id) : id(_id) {} |
---|
1025 | int id; |
---|
1026 | public: |
---|
1027 | operator UEdge() const { return uEdgeFromId(id / 2); } |
---|
1028 | |
---|
1029 | Edge() {} |
---|
1030 | Edge(Invalid) : id(-1) {} |
---|
1031 | bool operator==(const Edge& edge) const { return id == edge.id; } |
---|
1032 | bool operator!=(const Edge& edge) const { return id != edge.id; } |
---|
1033 | bool operator<(const Edge& edge) const { return id < edge.id; } |
---|
1034 | }; |
---|
1035 | |
---|
1036 | SmartUEdgeSetBase() {} |
---|
1037 | |
---|
1038 | UEdge addEdge(const Node& u, const Node& v) { |
---|
1039 | int n = edges.size(); |
---|
1040 | edges.push_back(EdgeT()); |
---|
1041 | edges.push_back(EdgeT()); |
---|
1042 | |
---|
1043 | edges[n].target = u; |
---|
1044 | edges[n | 1].target = v; |
---|
1045 | |
---|
1046 | edges[n].next_out = (*nodes)[v].first_out; |
---|
1047 | (*nodes)[v].first_out = n; |
---|
1048 | |
---|
1049 | edges[n | 1].next_out = (*nodes)[u].first_out; |
---|
1050 | (*nodes)[u].first_out = (n | 1); |
---|
1051 | |
---|
1052 | return UEdge(n / 2); |
---|
1053 | } |
---|
1054 | |
---|
1055 | void clear() { |
---|
1056 | Node node; |
---|
1057 | for (first(node); node != INVALID; next(node)) { |
---|
1058 | (*nodes)[node].first_out = -1; |
---|
1059 | } |
---|
1060 | edges.clear(); |
---|
1061 | } |
---|
1062 | |
---|
1063 | void first(Node& node) const { |
---|
1064 | graph->first(node); |
---|
1065 | } |
---|
1066 | |
---|
1067 | void next(Node& node) const { |
---|
1068 | graph->next(node); |
---|
1069 | } |
---|
1070 | |
---|
1071 | void first(Edge& edge) const { |
---|
1072 | edge.id = edges.size() - 1; |
---|
1073 | } |
---|
1074 | |
---|
1075 | void next(Edge& edge) const { |
---|
1076 | --edge.id; |
---|
1077 | } |
---|
1078 | |
---|
1079 | void first(UEdge& edge) const { |
---|
1080 | edge.id = edges.size() / 2 - 1; |
---|
1081 | } |
---|
1082 | |
---|
1083 | void next(UEdge& edge) const { |
---|
1084 | --edge.id; |
---|
1085 | } |
---|
1086 | |
---|
1087 | void firstOut(Edge& edge, const Node& node) const { |
---|
1088 | edge.id = (*nodes)[node].first_out; |
---|
1089 | } |
---|
1090 | |
---|
1091 | void nextOut(Edge& edge) const { |
---|
1092 | edge.id = edges[edge.id].next_out; |
---|
1093 | } |
---|
1094 | |
---|
1095 | void firstIn(Edge& edge, const Node& node) const { |
---|
1096 | edge.id = (((*nodes)[node].first_out) ^ 1); |
---|
1097 | if (edge.id == -2) edge.id = -1; |
---|
1098 | } |
---|
1099 | |
---|
1100 | void nextIn(Edge& edge) const { |
---|
1101 | edge.id = ((edges[edge.id ^ 1].next_out) ^ 1); |
---|
1102 | if (edge.id == -2) edge.id = -1; |
---|
1103 | } |
---|
1104 | |
---|
1105 | void firstInc(UEdge &edge, bool& dir, const Node& node) const { |
---|
1106 | int de = (*nodes)[node].first_out; |
---|
1107 | if (de != -1 ) { |
---|
1108 | edge.id = de / 2; |
---|
1109 | dir = ((de & 1) == 1); |
---|
1110 | } else { |
---|
1111 | edge.id = -1; |
---|
1112 | dir = true; |
---|
1113 | } |
---|
1114 | } |
---|
1115 | void nextInc(UEdge &edge, bool& dir) const { |
---|
1116 | int de = (edges[(edge.id * 2) | (dir ? 1 : 0)].next_out); |
---|
1117 | if (de != -1 ) { |
---|
1118 | edge.id = de / 2; |
---|
1119 | dir = ((de & 1) == 1); |
---|
1120 | } else { |
---|
1121 | edge.id = -1; |
---|
1122 | dir = true; |
---|
1123 | } |
---|
1124 | } |
---|
1125 | |
---|
1126 | static bool direction(Edge edge) { |
---|
1127 | return (edge.id & 1) == 1; |
---|
1128 | } |
---|
1129 | |
---|
1130 | static Edge direct(UEdge uedge, bool dir) { |
---|
1131 | return Edge(uedge.id * 2 + (dir ? 1 : 0)); |
---|
1132 | } |
---|
1133 | |
---|
1134 | int id(Node node) const { return graph->id(node); } |
---|
1135 | static int id(Edge edge) { return edge.id; } |
---|
1136 | static int id(UEdge edge) { return edge.id; } |
---|
1137 | |
---|
1138 | Node nodeFromId(int id) const { return graph->nodeFromId(id); } |
---|
1139 | static Edge edgeFromId(int id) { return Edge(id); } |
---|
1140 | static UEdge uEdgeFromId(int id) { return UEdge(id);} |
---|
1141 | |
---|
1142 | int maxNodeId() const { return graph->maxNodeId(); }; |
---|
1143 | int maxEdgeId() const { return edges.size() - 1; } |
---|
1144 | int maxUEdgeId() const { return edges.size() / 2 - 1; } |
---|
1145 | |
---|
1146 | Node source(Edge e) const { return edges[e.id ^ 1].target; } |
---|
1147 | Node target(Edge e) const { return edges[e.id].target; } |
---|
1148 | |
---|
1149 | Node source(UEdge e) const { return edges[2 * e.id].target; } |
---|
1150 | Node target(UEdge e) const { return edges[2 * e.id + 1].target; } |
---|
1151 | |
---|
1152 | typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier; |
---|
1153 | |
---|
1154 | NodeNotifier& notifier(Node) const { |
---|
1155 | return graph->notifier(Node()); |
---|
1156 | } |
---|
1157 | |
---|
1158 | template <typename _Value> |
---|
1159 | class NodeMap : public Graph::template NodeMap<_Value> { |
---|
1160 | public: |
---|
1161 | |
---|
1162 | typedef typename _Graph::template NodeMap<_Value> Parent; |
---|
1163 | |
---|
1164 | explicit NodeMap(const SmartUEdgeSetBase<Graph>& edgeset) |
---|
1165 | : Parent(*edgeset.graph) { } |
---|
1166 | |
---|
1167 | NodeMap(const SmartUEdgeSetBase<Graph>& edgeset, const _Value& value) |
---|
1168 | : Parent(*edgeset.graph, value) { } |
---|
1169 | |
---|
1170 | NodeMap& operator=(const NodeMap& cmap) { |
---|
1171 | return operator=<NodeMap>(cmap); |
---|
1172 | } |
---|
1173 | |
---|
1174 | template <typename CMap> |
---|
1175 | NodeMap& operator=(const CMap& cmap) { |
---|
1176 | Parent::operator=(cmap); |
---|
1177 | return *this; |
---|
1178 | } |
---|
1179 | }; |
---|
1180 | |
---|
1181 | }; |
---|
1182 | |
---|
1183 | /// \ingroup semi_adaptors |
---|
1184 | /// |
---|
1185 | /// \brief Graph using a node set of another graph and an |
---|
1186 | /// own uedge set. |
---|
1187 | /// |
---|
1188 | /// This structure can be used to establish another graph over a node set |
---|
1189 | /// of an existing one. The node iterator will go through the nodes of the |
---|
1190 | /// original graph. |
---|
1191 | /// |
---|
1192 | /// \param _Graph The type of the graph which shares its node set with |
---|
1193 | /// this class. Its interface must conform to the \ref concepts::Graph |
---|
1194 | /// "Graph" concept. |
---|
1195 | /// |
---|
1196 | /// In the edge extension and removing it conforms to the |
---|
1197 | /// \ref concepts::UGraph "UGraph" concept. |
---|
1198 | template <typename _Graph> |
---|
1199 | class SmartUEdgeSet : public UEdgeSetExtender<SmartUEdgeSetBase<_Graph> > { |
---|
1200 | |
---|
1201 | public: |
---|
1202 | |
---|
1203 | typedef UEdgeSetExtender<SmartUEdgeSetBase<_Graph> > Parent; |
---|
1204 | |
---|
1205 | typedef typename Parent::Node Node; |
---|
1206 | typedef typename Parent::Edge Edge; |
---|
1207 | |
---|
1208 | typedef _Graph Graph; |
---|
1209 | |
---|
1210 | protected: |
---|
1211 | |
---|
1212 | typedef typename Parent::NodesImplBase NodesImplBase; |
---|
1213 | |
---|
1214 | void eraseNode(const Node& node) { |
---|
1215 | if (typename Parent::IncEdgeIt(*this, node) == INVALID) { |
---|
1216 | return; |
---|
1217 | } |
---|
1218 | throw typename NodesImplBase::Notifier::ImmediateDetach(); |
---|
1219 | } |
---|
1220 | |
---|
1221 | void clearNodes() { |
---|
1222 | Parent::clear(); |
---|
1223 | } |
---|
1224 | |
---|
1225 | class NodesImpl : public NodesImplBase { |
---|
1226 | public: |
---|
1227 | typedef NodesImplBase Parent; |
---|
1228 | |
---|
1229 | NodesImpl(const Graph& graph, SmartUEdgeSet& edgeset) |
---|
1230 | : Parent(graph), _edgeset(edgeset) {} |
---|
1231 | |
---|
1232 | virtual ~NodesImpl() {} |
---|
1233 | |
---|
1234 | bool attached() const { |
---|
1235 | return Parent::attached(); |
---|
1236 | } |
---|
1237 | |
---|
1238 | protected: |
---|
1239 | |
---|
1240 | virtual void erase(const Node& node) { |
---|
1241 | try { |
---|
1242 | _edgeset.eraseNode(node); |
---|
1243 | Parent::erase(node); |
---|
1244 | } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) { |
---|
1245 | Parent::clear(); |
---|
1246 | throw; |
---|
1247 | } |
---|
1248 | } |
---|
1249 | virtual void erase(const std::vector<Node>& nodes) { |
---|
1250 | try { |
---|
1251 | for (int i = 0; i < int(nodes.size()); ++i) { |
---|
1252 | _edgeset.eraseNode(nodes[i]); |
---|
1253 | } |
---|
1254 | Parent::erase(nodes); |
---|
1255 | } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) { |
---|
1256 | Parent::clear(); |
---|
1257 | throw; |
---|
1258 | } |
---|
1259 | } |
---|
1260 | virtual void clear() { |
---|
1261 | _edgeset.clearNodes(); |
---|
1262 | Parent::clear(); |
---|
1263 | } |
---|
1264 | |
---|
1265 | private: |
---|
1266 | SmartUEdgeSet& _edgeset; |
---|
1267 | }; |
---|
1268 | |
---|
1269 | NodesImpl nodes; |
---|
1270 | |
---|
1271 | public: |
---|
1272 | |
---|
1273 | /// \brief Constructor of the adaptor. |
---|
1274 | /// |
---|
1275 | /// Constructor of the adaptor. |
---|
1276 | SmartUEdgeSet(const Graph& graph) : nodes(graph, *this) { |
---|
1277 | Parent::initalize(graph, nodes); |
---|
1278 | } |
---|
1279 | |
---|
1280 | bool valid() const { |
---|
1281 | return nodes.attached(); |
---|
1282 | } |
---|
1283 | |
---|
1284 | }; |
---|
1285 | |
---|
1286 | } |
---|
1287 | |
---|
1288 | #endif |
---|