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) 2003-2006 |
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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 | ///\ingroup graph_concepts |
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20 | ///\file |
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21 | ///\brief The concept of the graph components. |
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22 | |
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23 | |
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24 | #ifndef LEMON_CONCEPT_GRAPH_COMPONENTS_H |
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25 | #define LEMON_CONCEPT_GRAPH_COMPONENTS_H |
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26 | |
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27 | #include <lemon/bits/invalid.h> |
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28 | #include <lemon/concept/maps.h> |
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29 | |
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30 | #include <lemon/bits/alteration_notifier.h> |
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31 | |
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32 | namespace lemon { |
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33 | namespace concept { |
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34 | |
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35 | /// \brief Skeleton class for graph Node and Edge types |
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36 | /// |
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37 | /// This class describes the interface of Node and Edge (and UEdge |
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38 | /// in undirected graphs) subtypes of graph types. |
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39 | /// |
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40 | /// \note This class is a template class so that we can use it to |
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41 | /// create graph skeleton classes. The reason for this is than Node |
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42 | /// and Edge types should \em not derive from the same base class. |
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43 | /// For Node you should instantiate it with character 'n' and for Edge |
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44 | /// with 'e'. |
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45 | |
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46 | #ifndef DOXYGEN |
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47 | template <char _selector = '0'> |
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48 | #endif |
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49 | class GraphItem { |
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50 | public: |
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51 | /// \brief Default constructor. |
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52 | /// |
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53 | /// \warning The default constructor is not required to set |
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54 | /// the item to some well-defined value. So you should consider it |
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55 | /// as uninitialized. |
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56 | GraphItem() {} |
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57 | /// \brief Copy constructor. |
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58 | /// |
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59 | /// Copy constructor. |
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60 | /// |
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61 | GraphItem(const GraphItem &) {} |
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62 | /// \brief Invalid constructor \& conversion. |
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63 | /// |
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64 | /// This constructor initializes the item to be invalid. |
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65 | /// \sa Invalid for more details. |
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66 | GraphItem(Invalid) {} |
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67 | /// \brief Assign operator for nodes. |
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68 | /// |
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69 | /// The nodes are assignable. |
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70 | /// |
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71 | GraphItem& operator=(GraphItem const&) { return *this; } |
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72 | /// \brief Equality operator. |
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73 | /// |
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74 | /// Two iterators are equal if and only if they represents the |
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75 | /// same node in the graph or both are invalid. |
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76 | bool operator==(GraphItem) const { return false; } |
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77 | /// \brief Inequality operator. |
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78 | /// |
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79 | /// \sa operator==(const Node& n) |
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80 | /// |
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81 | bool operator!=(GraphItem) const { return false; } |
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82 | |
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83 | /// \brief Artificial ordering operator. |
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84 | /// |
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85 | /// To allow the use of graph descriptors as key type in std::map or |
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86 | /// similar associative container we require this. |
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87 | /// |
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88 | /// \note This operator only have to define some strict ordering of |
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89 | /// the items; this order has nothing to do with the iteration |
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90 | /// ordering of the items. |
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91 | bool operator<(GraphItem) const { return false; } |
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92 | |
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93 | template<typename _GraphItem> |
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94 | struct Constraints { |
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95 | void constraints() { |
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96 | _GraphItem i1; |
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97 | _GraphItem i2 = i1; |
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98 | _GraphItem i3 = INVALID; |
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99 | |
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100 | i1 = i2 = i3; |
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101 | |
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102 | bool b; |
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103 | // b = (ia == ib) && (ia != ib) && (ia < ib); |
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104 | b = (ia == ib) && (ia != ib); |
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105 | b = (ia == INVALID) && (ib != INVALID); |
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106 | b = (ia < ib); |
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107 | } |
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108 | |
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109 | const _GraphItem &ia; |
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110 | const _GraphItem &ib; |
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111 | }; |
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112 | }; |
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113 | |
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114 | /// \brief An empty base graph class. |
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115 | /// |
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116 | /// This class provides the minimal set of features needed for a graph |
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117 | /// structure. All graph concepts have to be conform to this base |
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118 | /// graph. It just provides types for nodes and edges and functions to |
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119 | /// get the source and the target of the edges. |
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120 | class BaseGraphComponent { |
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121 | public: |
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122 | |
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123 | typedef BaseGraphComponent Graph; |
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124 | |
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125 | /// \brief Node class of the graph. |
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126 | /// |
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127 | /// This class represents the Nodes of the graph. |
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128 | /// |
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129 | typedef GraphItem<'n'> Node; |
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130 | |
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131 | /// \brief Edge class of the graph. |
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132 | /// |
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133 | /// This class represents the Edges of the graph. |
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134 | /// |
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135 | typedef GraphItem<'e'> Edge; |
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136 | |
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137 | /// \brief Gives back the target node of an edge. |
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138 | /// |
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139 | /// Gives back the target node of an edge. |
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140 | /// |
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141 | Node target(const Edge&) const { return INVALID;} |
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142 | |
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143 | /// \brief Gives back the source node of an edge. |
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144 | /// |
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145 | /// Gives back the source node of an edge. |
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146 | /// |
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147 | Node source(const Edge&) const { return INVALID;} |
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148 | |
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149 | /// \brief Gives back the opposite node on the given edge. |
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150 | /// |
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151 | /// Gives back the opposite node on the given edge. |
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152 | Node oppositeNode(const Node&, const Edge&) const { |
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153 | return INVALID; |
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154 | } |
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155 | |
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156 | template <typename _Graph> |
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157 | struct Constraints { |
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158 | typedef typename _Graph::Node Node; |
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159 | typedef typename _Graph::Edge Edge; |
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160 | |
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161 | void constraints() { |
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162 | checkConcept<GraphItem<'n'>, Node>(); |
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163 | checkConcept<GraphItem<'e'>, Edge>(); |
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164 | { |
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165 | Node n; |
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166 | Edge e(INVALID); |
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167 | n = graph.source(e); |
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168 | n = graph.target(e); |
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169 | n = graph.oppositeNode(n, e); |
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170 | } |
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171 | } |
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172 | |
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173 | const _Graph& graph; |
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174 | }; |
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175 | }; |
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176 | |
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177 | /// \brief An empty base undirected graph class. |
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178 | /// |
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179 | /// This class provides the minimal set of features needed for an |
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180 | /// undirected graph structure. All undirected graph concepts have |
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181 | /// to be conform to this base graph. It just provides types for |
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182 | /// nodes, edges and undirected edges and functions to get the |
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183 | /// source and the target of the edges and undirected edges, |
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184 | /// conversion from edges to undirected edges and function to get |
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185 | /// both direction of the undirected edges. |
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186 | class BaseUGraphComponent : public BaseGraphComponent { |
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187 | public: |
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188 | typedef BaseGraphComponent::Node Node; |
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189 | typedef BaseGraphComponent::Edge Edge; |
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190 | /// \brief Undirected edge class of the graph. |
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191 | /// |
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192 | /// This class represents the undirected edges of the graph. |
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193 | /// The undirected graphs can be used as a directed graph which |
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194 | /// for each edge contains the opposite edge too so the graph is |
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195 | /// bidirected. The undirected edge represents two opposite |
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196 | /// directed edges. |
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197 | class UEdge : public GraphItem<'u'> { |
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198 | public: |
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199 | typedef GraphItem<'u'> Parent; |
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200 | /// \brief Default constructor. |
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201 | /// |
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202 | /// \warning The default constructor is not required to set |
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203 | /// the item to some well-defined value. So you should consider it |
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204 | /// as uninitialized. |
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205 | UEdge() {} |
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206 | /// \brief Copy constructor. |
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207 | /// |
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208 | /// Copy constructor. |
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209 | /// |
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210 | UEdge(const UEdge &) : Parent() {} |
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211 | /// \brief Invalid constructor \& conversion. |
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212 | /// |
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213 | /// This constructor initializes the item to be invalid. |
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214 | /// \sa Invalid for more details. |
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215 | UEdge(Invalid) {} |
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216 | /// \brief Converter from edge to undirected edge. |
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217 | /// |
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218 | /// Besides the core graph item functionality each edge should |
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219 | /// be convertible to the represented undirected edge. |
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220 | UEdge(const Edge&) {} |
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221 | }; |
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222 | |
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223 | /// \brief Returns the direction of the edge. |
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224 | /// |
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225 | /// Returns the direction of the edge. Each edge represents an |
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226 | /// undirected edge with a direction. It gives back the |
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227 | /// direction. |
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228 | bool direction(const Edge&) const { return true; } |
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229 | |
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230 | /// \brief Returns the directed edge. |
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231 | /// |
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232 | /// Returns the directed edge from its direction and the |
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233 | /// represented undirected edge. |
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234 | Edge direct(const UEdge&, bool) const { return INVALID;} |
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235 | |
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236 | /// \brief Returns the directed edge. |
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237 | /// |
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238 | /// Returns the directed edge from its source and the |
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239 | /// represented undirected edge. |
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240 | Edge direct(const UEdge&, const Node&) const { return INVALID;} |
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241 | |
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242 | /// \brief Returns the opposite edge. |
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243 | /// |
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244 | /// Returns the opposite edge. It is the edge representing the |
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245 | /// same undirected edge and has opposite direction. |
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246 | Edge oppositeEdge(const Edge&) const { return INVALID;} |
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247 | |
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248 | /// \brief Gives back the target node of an undirected edge. |
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249 | /// |
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250 | /// Gives back the target node of an undirected edge. The name |
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251 | /// target is a little confusing because the undirected edge |
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252 | /// does not have target but it just means that one of the end |
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253 | /// node. |
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254 | Node target(const UEdge&) const { return INVALID;} |
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255 | |
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256 | /// \brief Gives back the source node of an undirected edge. |
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257 | /// |
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258 | /// Gives back the source node of an undirected edge. The name |
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259 | /// source is a little confusing because the undirected edge |
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260 | /// does not have source but it just means that one of the end |
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261 | /// node. |
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262 | Node source(const UEdge&) const { return INVALID;} |
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263 | |
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264 | template <typename _Graph> |
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265 | struct Constraints { |
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266 | typedef typename _Graph::Node Node; |
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267 | typedef typename _Graph::Edge Edge; |
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268 | typedef typename _Graph::UEdge UEdge; |
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269 | |
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270 | void constraints() { |
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271 | checkConcept<BaseGraphComponent, _Graph>(); |
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272 | checkConcept<GraphItem<'u'>, UEdge>(); |
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273 | { |
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274 | Node n; |
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275 | UEdge ue(INVALID); |
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276 | Edge e; |
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277 | n = graph.source(ue); |
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278 | n = graph.target(ue); |
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279 | e = graph.direct(ue, true); |
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280 | e = graph.direct(ue, n); |
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281 | e = graph.oppositeEdge(e); |
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282 | ue = e; |
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283 | bool d = graph.direction(e); |
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284 | ignore_unused_variable_warning(d); |
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285 | } |
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286 | } |
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287 | |
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288 | const _Graph& graph; |
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289 | }; |
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290 | |
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291 | }; |
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292 | |
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293 | /// \brief An empty iterable base graph class. |
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294 | /// |
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295 | /// This class provides beside the core graph features |
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296 | /// core iterable interface for the graph structure. |
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297 | /// Most of the base graphs should be conform to this concept. |
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298 | template <typename _Base = BaseGraphComponent> |
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299 | class BaseIterableGraphComponent : public _Base { |
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300 | public: |
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301 | |
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302 | typedef _Base Base; |
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303 | typedef typename Base::Node Node; |
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304 | typedef typename Base::Edge Edge; |
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305 | |
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306 | /// \brief Gives back the first node in the iterating order. |
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307 | /// |
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308 | /// Gives back the first node in the iterating order. |
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309 | /// |
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310 | void first(Node&) const {} |
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311 | |
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312 | /// \brief Gives back the next node in the iterating order. |
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313 | /// |
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314 | /// Gives back the next node in the iterating order. |
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315 | /// |
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316 | void next(Node&) const {} |
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317 | |
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318 | /// \brief Gives back the first edge in the iterating order. |
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319 | /// |
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320 | /// Gives back the first edge in the iterating order. |
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321 | /// |
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322 | void first(Edge&) const {} |
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323 | |
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324 | /// \brief Gives back the next edge in the iterating order. |
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325 | /// |
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326 | /// Gives back the next edge in the iterating order. |
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327 | /// |
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328 | void next(Edge&) const {} |
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329 | |
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330 | |
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331 | /// \brief Gives back the first of the edges point to the given |
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332 | /// node. |
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333 | /// |
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334 | /// Gives back the first of the edges point to the given node. |
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335 | /// |
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336 | void firstIn(Edge&, const Node&) const {} |
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337 | |
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338 | /// \brief Gives back the next of the edges points to the given |
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339 | /// node. |
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340 | /// |
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341 | /// Gives back the next of the edges points to the given node. |
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342 | /// |
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343 | void nextIn(Edge&) const {} |
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344 | |
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345 | /// \brief Gives back the first of the edges start from the |
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346 | /// given node. |
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347 | /// |
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348 | /// Gives back the first of the edges start from the given node. |
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349 | /// |
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350 | void firstOut(Edge&, const Node&) const {} |
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351 | |
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352 | /// \brief Gives back the next of the edges start from the given |
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353 | /// node. |
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354 | /// |
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355 | /// Gives back the next of the edges start from the given node. |
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356 | /// |
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357 | void nextOut(Edge&) const {} |
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358 | |
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359 | |
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360 | template <typename _Graph> |
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361 | struct Constraints { |
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362 | |
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363 | void constraints() { |
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364 | checkConcept< BaseGraphComponent, _Graph >(); |
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365 | typename _Graph::Node node(INVALID); |
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366 | typename _Graph::Edge edge(INVALID); |
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367 | { |
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368 | graph.first(node); |
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369 | graph.next(node); |
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370 | } |
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371 | { |
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372 | graph.first(edge); |
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373 | graph.next(edge); |
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374 | } |
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375 | { |
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376 | graph.firstIn(edge, node); |
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377 | graph.nextIn(edge); |
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378 | } |
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379 | { |
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380 | graph.firstOut(edge, node); |
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381 | graph.nextOut(edge); |
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382 | } |
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383 | } |
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384 | |
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385 | const _Graph& graph; |
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386 | }; |
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387 | }; |
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388 | |
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389 | /// \brief An empty iterable base undirected graph class. |
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390 | /// |
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391 | /// This class provides beside the core undirceted graph features |
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392 | /// core iterable interface for the undirected graph structure. |
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393 | /// Most of the base undirected graphs should be conform to this |
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394 | /// concept. |
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395 | template <typename _Base = BaseUGraphComponent> |
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396 | class BaseIterableUGraphComponent |
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397 | : public BaseIterableGraphComponent<_Base> { |
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398 | public: |
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399 | |
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400 | typedef _Base Base; |
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401 | typedef typename Base::UEdge UEdge; |
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402 | typedef typename Base::Node Node; |
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403 | |
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404 | using BaseIterableGraphComponent<_Base>::first; |
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405 | using BaseIterableGraphComponent<_Base>::next; |
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406 | |
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407 | /// \brief Gives back the first undirected edge in the iterating |
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408 | /// order. |
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409 | /// |
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410 | /// Gives back the first undirected edge in the iterating order. |
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411 | /// |
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412 | void first(UEdge&) const {} |
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413 | |
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414 | /// \brief Gives back the next undirected edge in the iterating |
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415 | /// order. |
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416 | /// |
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417 | /// Gives back the next undirected edge in the iterating order. |
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418 | /// |
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419 | void next(UEdge&) const {} |
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420 | |
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421 | |
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422 | /// \brief Gives back the first of the undirected edges from the |
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423 | /// given node. |
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424 | /// |
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425 | /// Gives back the first of the undirected edges from the given |
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426 | /// node. The bool parameter gives back that direction which |
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427 | /// gives a good direction of the uedge so the source of the |
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428 | /// directed edge is the given node. |
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429 | void firstInc(UEdge&, bool&, const Node&) const {} |
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430 | |
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431 | /// \brief Gives back the next of the undirected edges from the |
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432 | /// given node. |
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433 | /// |
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434 | /// Gives back the next of the undirected edges from the given |
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435 | /// node. The bool parameter should be used as the \c firstInc() |
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436 | /// use it. |
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437 | void nextInc(UEdge&, bool&) const {} |
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438 | |
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439 | template <typename _Graph> |
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440 | struct Constraints { |
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441 | |
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442 | void constraints() { |
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443 | checkConcept<Base, _Graph >(); |
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444 | checkConcept<BaseIterableGraphComponent<Base>, _Graph>(); |
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445 | typename _Graph::Node node(INVALID); |
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446 | typename _Graph::UEdge uedge(INVALID); |
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447 | bool dir; |
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448 | { |
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449 | graph.first(uedge); |
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450 | graph.next(uedge); |
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451 | } |
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452 | { |
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453 | graph.firstInc(uedge, dir, node); |
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454 | graph.nextInc(uedge, dir); |
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455 | } |
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456 | } |
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457 | |
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458 | const _Graph& graph; |
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459 | }; |
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460 | }; |
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461 | |
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462 | /// \brief An empty idable base graph class. |
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463 | /// |
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464 | /// This class provides beside the core graph features |
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465 | /// core id functions for the graph structure. |
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466 | /// The most of the base graphs should be conform to this concept. |
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467 | /// The id's are unique and immutable. |
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468 | template <typename _Base = BaseGraphComponent> |
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469 | class IDableGraphComponent : public _Base { |
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470 | public: |
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471 | |
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472 | typedef _Base Base; |
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473 | typedef typename Base::Node Node; |
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474 | typedef typename Base::Edge Edge; |
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475 | |
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476 | /// \brief Gives back an unique integer id for the Node. |
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477 | /// |
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478 | /// Gives back an unique integer id for the Node. |
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479 | /// |
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480 | int id(const Node&) const { return -1;} |
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481 | |
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482 | /// \brief Gives back the node by the unique id. |
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483 | /// |
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484 | /// Gives back the node by the unique id. |
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485 | /// If the graph does not contain node with the given id |
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486 | /// then the result of the function is undetermined. |
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487 | Node nodeFromId(int) const { return INVALID;} |
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488 | |
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489 | /// \brief Gives back an unique integer id for the Edge. |
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490 | /// |
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491 | /// Gives back an unique integer id for the Edge. |
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492 | /// |
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493 | int id(const Edge&) const { return -1;} |
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494 | |
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495 | /// \brief Gives back the edge by the unique id. |
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496 | /// |
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497 | /// Gives back the edge by the unique id. |
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498 | /// If the graph does not contain edge with the given id |
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499 | /// then the result of the function is undetermined. |
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500 | Edge edgeFromId(int) const { return INVALID;} |
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501 | |
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502 | /// \brief Gives back an integer greater or equal to the maximum |
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503 | /// Node id. |
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504 | /// |
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505 | /// Gives back an integer greater or equal to the maximum Node |
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506 | /// id. |
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507 | int maxNodeId() const { return -1;} |
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508 | |
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509 | /// \brief Gives back an integer greater or equal to the maximum |
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510 | /// Edge id. |
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511 | /// |
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512 | /// Gives back an integer greater or equal to the maximum Edge |
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513 | /// id. |
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514 | int maxEdgeId() const { return -1;} |
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515 | |
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516 | template <typename _Graph> |
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517 | struct Constraints { |
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518 | |
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519 | void constraints() { |
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520 | checkConcept< BaseGraphComponent, _Graph >(); |
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521 | typename _Graph::Node node; |
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522 | int nid = graph.id(node); |
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523 | nid = graph.id(node); |
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524 | node = graph.nodeFromId(nid); |
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525 | typename _Graph::Edge edge; |
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526 | int eid = graph.id(edge); |
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527 | eid = graph.id(edge); |
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528 | edge = graph.edgeFromId(eid); |
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529 | |
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530 | nid = graph.maxNodeId(); |
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531 | ignore_unused_variable_warning(nid); |
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532 | eid = graph.maxEdgeId(); |
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533 | ignore_unused_variable_warning(eid); |
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534 | } |
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535 | |
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536 | const _Graph& graph; |
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537 | }; |
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538 | }; |
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539 | |
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540 | /// \brief An empty idable base undirected graph class. |
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541 | /// |
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542 | /// This class provides beside the core undirected graph features |
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543 | /// core id functions for the undirected graph structure. The |
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544 | /// most of the base undirected graphs should be conform to this |
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545 | /// concept. The id's are unique and immutable. |
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546 | template <typename _Base = BaseUGraphComponent> |
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547 | class IDableUGraphComponent : public IDableGraphComponent<_Base> { |
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548 | public: |
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549 | |
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550 | typedef _Base Base; |
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551 | typedef typename Base::UEdge UEdge; |
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552 | |
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553 | using IDableGraphComponent<_Base>::id; |
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554 | |
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555 | /// \brief Gives back an unique integer id for the UEdge. |
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556 | /// |
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557 | /// Gives back an unique integer id for the UEdge. |
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558 | /// |
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559 | int id(const UEdge&) const { return -1;} |
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560 | |
---|
561 | /// \brief Gives back the undirected edge by the unique id. |
---|
562 | /// |
---|
563 | /// Gives back the undirected edge by the unique id. If the |
---|
564 | /// graph does not contain edge with the given id then the |
---|
565 | /// result of the function is undetermined. |
---|
566 | UEdge uEdgeFromId(int) const { return INVALID;} |
---|
567 | |
---|
568 | /// \brief Gives back an integer greater or equal to the maximum |
---|
569 | /// UEdge id. |
---|
570 | /// |
---|
571 | /// Gives back an integer greater or equal to the maximum UEdge |
---|
572 | /// id. |
---|
573 | int maxUEdgeId() const { return -1;} |
---|
574 | |
---|
575 | template <typename _Graph> |
---|
576 | struct Constraints { |
---|
577 | |
---|
578 | void constraints() { |
---|
579 | checkConcept<Base, _Graph >(); |
---|
580 | checkConcept<IDableGraphComponent<Base>, _Graph >(); |
---|
581 | typename _Graph::UEdge uedge; |
---|
582 | int ueid = graph.id(uedge); |
---|
583 | ueid = graph.id(uedge); |
---|
584 | uedge = graph.uEdgeFromId(ueid); |
---|
585 | ueid = graph.maxUEdgeId(); |
---|
586 | ignore_unused_variable_warning(ueid); |
---|
587 | } |
---|
588 | |
---|
589 | const _Graph& graph; |
---|
590 | }; |
---|
591 | }; |
---|
592 | |
---|
593 | /// \brief An empty extendable base graph class. |
---|
594 | /// |
---|
595 | /// This class provides beside the core graph features |
---|
596 | /// core graph extend interface for the graph structure. |
---|
597 | /// The most of the base graphs should be conform to this concept. |
---|
598 | template <typename _Base = BaseGraphComponent> |
---|
599 | class BaseExtendableGraphComponent : public _Base { |
---|
600 | public: |
---|
601 | |
---|
602 | typedef typename _Base::Node Node; |
---|
603 | typedef typename _Base::Edge Edge; |
---|
604 | |
---|
605 | /// \brief Adds a new node to the graph. |
---|
606 | /// |
---|
607 | /// Adds a new node to the graph. |
---|
608 | /// |
---|
609 | Node addNode() { |
---|
610 | return INVALID; |
---|
611 | } |
---|
612 | |
---|
613 | /// \brief Adds a new edge connects the given two nodes. |
---|
614 | /// |
---|
615 | /// Adds a new edge connects the the given two nodes. |
---|
616 | Edge addEdge(const Node&, const Node&) { |
---|
617 | return INVALID; |
---|
618 | } |
---|
619 | |
---|
620 | template <typename _Graph> |
---|
621 | struct Constraints { |
---|
622 | void constraints() { |
---|
623 | typename _Graph::Node node_a, node_b; |
---|
624 | node_a = graph.addNode(); |
---|
625 | node_b = graph.addNode(); |
---|
626 | typename _Graph::Edge edge; |
---|
627 | edge = graph.addEdge(node_a, node_b); |
---|
628 | } |
---|
629 | |
---|
630 | _Graph& graph; |
---|
631 | }; |
---|
632 | }; |
---|
633 | |
---|
634 | /// \brief An empty extendable base undirected graph class. |
---|
635 | /// |
---|
636 | /// This class provides beside the core undirected graph features |
---|
637 | /// core undircted graph extend interface for the graph structure. |
---|
638 | /// The most of the base graphs should be conform to this concept. |
---|
639 | template <typename _Base = BaseUGraphComponent> |
---|
640 | class BaseExtendableUGraphComponent : public _Base { |
---|
641 | public: |
---|
642 | |
---|
643 | typedef typename _Base::Node Node; |
---|
644 | typedef typename _Base::UEdge UEdge; |
---|
645 | |
---|
646 | /// \brief Adds a new node to the graph. |
---|
647 | /// |
---|
648 | /// Adds a new node to the graph. |
---|
649 | /// |
---|
650 | Node addNode() { |
---|
651 | return INVALID; |
---|
652 | } |
---|
653 | |
---|
654 | /// \brief Adds a new edge connects the given two nodes. |
---|
655 | /// |
---|
656 | /// Adds a new edge connects the the given two nodes. |
---|
657 | UEdge addEdge(const Node&, const Node&) { |
---|
658 | return INVALID; |
---|
659 | } |
---|
660 | |
---|
661 | template <typename _Graph> |
---|
662 | struct Constraints { |
---|
663 | void constraints() { |
---|
664 | typename _Graph::Node node_a, node_b; |
---|
665 | node_a = graph.addNode(); |
---|
666 | node_b = graph.addNode(); |
---|
667 | typename _Graph::UEdge uedge; |
---|
668 | uedge = graph.addUEdge(node_a, node_b); |
---|
669 | } |
---|
670 | |
---|
671 | _Graph& graph; |
---|
672 | }; |
---|
673 | }; |
---|
674 | |
---|
675 | /// \brief An empty erasable base graph class. |
---|
676 | /// |
---|
677 | /// This class provides beside the core graph features |
---|
678 | /// core erase functions for the graph structure. |
---|
679 | /// The most of the base graphs should be conform to this concept. |
---|
680 | template <typename _Base = BaseGraphComponent> |
---|
681 | class BaseErasableGraphComponent : public _Base { |
---|
682 | public: |
---|
683 | |
---|
684 | typedef _Base Base; |
---|
685 | typedef typename Base::Node Node; |
---|
686 | typedef typename Base::Edge Edge; |
---|
687 | |
---|
688 | /// \brief Erase a node from the graph. |
---|
689 | /// |
---|
690 | /// Erase a node from the graph. This function should not |
---|
691 | /// erase edges connecting to the Node. |
---|
692 | void erase(const Node&) {} |
---|
693 | |
---|
694 | /// \brief Erase an edge from the graph. |
---|
695 | /// |
---|
696 | /// Erase an edge from the graph. |
---|
697 | /// |
---|
698 | void erase(const Edge&) {} |
---|
699 | |
---|
700 | template <typename _Graph> |
---|
701 | struct Constraints { |
---|
702 | void constraints() { |
---|
703 | typename _Graph::Node node; |
---|
704 | graph.erase(node); |
---|
705 | typename _Graph::Edge edge; |
---|
706 | graph.erase(edge); |
---|
707 | } |
---|
708 | |
---|
709 | _Graph& graph; |
---|
710 | }; |
---|
711 | }; |
---|
712 | |
---|
713 | /// \brief An empty erasable base undirected graph class. |
---|
714 | /// |
---|
715 | /// This class provides beside the core undirected graph features |
---|
716 | /// core erase functions for the undirceted graph structure. |
---|
717 | template <typename _Base = BaseUGraphComponent> |
---|
718 | class BaseErasableUGraphComponent : public _Base { |
---|
719 | public: |
---|
720 | |
---|
721 | typedef _Base Base; |
---|
722 | typedef typename Base::Node Node; |
---|
723 | typedef typename Base::UEdge UEdge; |
---|
724 | |
---|
725 | /// \brief Erase a node from the graph. |
---|
726 | /// |
---|
727 | /// Erase a node from the graph. This function should not |
---|
728 | /// erase edges connecting to the Node. |
---|
729 | void erase(const Node&) {} |
---|
730 | |
---|
731 | /// \brief Erase an edge from the graph. |
---|
732 | /// |
---|
733 | /// Erase an edge from the graph. |
---|
734 | /// |
---|
735 | void erase(const UEdge&) {} |
---|
736 | |
---|
737 | template <typename _Graph> |
---|
738 | struct Constraints { |
---|
739 | void constraints() { |
---|
740 | typename _Graph::Node node; |
---|
741 | graph.erase(node); |
---|
742 | typename _Graph::Edge edge; |
---|
743 | graph.erase(edge); |
---|
744 | } |
---|
745 | |
---|
746 | _Graph& graph; |
---|
747 | }; |
---|
748 | }; |
---|
749 | |
---|
750 | /// \brief An empty clearable base graph class. |
---|
751 | /// |
---|
752 | /// This class provides beside the core graph features |
---|
753 | /// core clear functions for the graph structure. |
---|
754 | /// The most of the base graphs should be conform to this concept. |
---|
755 | template <typename _Base = BaseGraphComponent> |
---|
756 | class BaseClearableGraphComponent : public _Base { |
---|
757 | public: |
---|
758 | |
---|
759 | /// \brief Erase all the nodes and edges from the graph. |
---|
760 | /// |
---|
761 | /// Erase all the nodes and edges from the graph. |
---|
762 | /// |
---|
763 | void clear() {} |
---|
764 | |
---|
765 | template <typename _Graph> |
---|
766 | struct Constraints { |
---|
767 | void constraints() { |
---|
768 | graph.clear(); |
---|
769 | } |
---|
770 | |
---|
771 | _Graph graph; |
---|
772 | }; |
---|
773 | }; |
---|
774 | |
---|
775 | /// \brief An empty clearable base undirected graph class. |
---|
776 | /// |
---|
777 | /// This class provides beside the core undirected graph features |
---|
778 | /// core clear functions for the undirected graph structure. |
---|
779 | /// The most of the base graphs should be conform to this concept. |
---|
780 | template <typename _Base = BaseUGraphComponent> |
---|
781 | class BaseClearableUGraphComponent : public _Base { |
---|
782 | public: |
---|
783 | |
---|
784 | /// \brief Erase all the nodes and undirected edges from the graph. |
---|
785 | /// |
---|
786 | /// Erase all the nodes and undirected edges from the graph. |
---|
787 | /// |
---|
788 | void clear() {} |
---|
789 | |
---|
790 | template <typename _Graph> |
---|
791 | struct Constraints { |
---|
792 | void constraints() { |
---|
793 | graph.clear(); |
---|
794 | } |
---|
795 | |
---|
796 | _Graph graph; |
---|
797 | }; |
---|
798 | }; |
---|
799 | |
---|
800 | |
---|
801 | /// \brief Skeleton class for graph NodeIt and EdgeIt |
---|
802 | /// |
---|
803 | /// Skeleton class for graph NodeIt and EdgeIt. |
---|
804 | /// |
---|
805 | template <typename _Graph, typename _Item> |
---|
806 | class GraphItemIt : public _Item { |
---|
807 | public: |
---|
808 | /// \brief Default constructor. |
---|
809 | /// |
---|
810 | /// @warning The default constructor sets the iterator |
---|
811 | /// to an undefined value. |
---|
812 | GraphItemIt() {} |
---|
813 | /// \brief Copy constructor. |
---|
814 | /// |
---|
815 | /// Copy constructor. |
---|
816 | /// |
---|
817 | GraphItemIt(const GraphItemIt& ) {} |
---|
818 | /// \brief Sets the iterator to the first item. |
---|
819 | /// |
---|
820 | /// Sets the iterator to the first item of \c the graph. |
---|
821 | /// |
---|
822 | explicit GraphItemIt(const _Graph&) {} |
---|
823 | /// \brief Invalid constructor \& conversion. |
---|
824 | /// |
---|
825 | /// This constructor initializes the item to be invalid. |
---|
826 | /// \sa Invalid for more details. |
---|
827 | GraphItemIt(Invalid) {} |
---|
828 | /// \brief Assign operator for items. |
---|
829 | /// |
---|
830 | /// The items are assignable. |
---|
831 | /// |
---|
832 | GraphItemIt& operator=(const GraphItemIt&) { return *this; } |
---|
833 | /// \brief Next item. |
---|
834 | /// |
---|
835 | /// Assign the iterator to the next item. |
---|
836 | /// |
---|
837 | GraphItemIt& operator++() { return *this; } |
---|
838 | /// \brief Equality operator |
---|
839 | /// |
---|
840 | /// Two iterators are equal if and only if they point to the |
---|
841 | /// same object or both are invalid. |
---|
842 | bool operator==(const GraphItemIt&) const { return true;} |
---|
843 | /// \brief Inequality operator |
---|
844 | /// |
---|
845 | /// \sa operator==(Node n) |
---|
846 | /// |
---|
847 | bool operator!=(const GraphItemIt&) const { return true;} |
---|
848 | |
---|
849 | template<typename _GraphItemIt> |
---|
850 | struct Constraints { |
---|
851 | void constraints() { |
---|
852 | _GraphItemIt it1(g); |
---|
853 | _GraphItemIt it2; |
---|
854 | |
---|
855 | it2 = ++it1; |
---|
856 | ++it2 = it1; |
---|
857 | ++(++it1); |
---|
858 | |
---|
859 | _Item bi = it1; |
---|
860 | bi = it2; |
---|
861 | } |
---|
862 | _Graph& g; |
---|
863 | }; |
---|
864 | }; |
---|
865 | |
---|
866 | /// \brief Skeleton class for graph InEdgeIt and OutEdgeIt |
---|
867 | /// |
---|
868 | /// \note Because InEdgeIt and OutEdgeIt may not inherit from the same |
---|
869 | /// base class, the _selector is a additional template parameter. For |
---|
870 | /// InEdgeIt you should instantiate it with character 'i' and for |
---|
871 | /// OutEdgeIt with 'o'. |
---|
872 | template <typename _Graph, |
---|
873 | typename _Item = typename _Graph::Edge, |
---|
874 | typename _Base = typename _Graph::Node, |
---|
875 | char _selector = '0'> |
---|
876 | class GraphIncIt : public _Item { |
---|
877 | public: |
---|
878 | /// \brief Default constructor. |
---|
879 | /// |
---|
880 | /// @warning The default constructor sets the iterator |
---|
881 | /// to an undefined value. |
---|
882 | GraphIncIt() {} |
---|
883 | /// \brief Copy constructor. |
---|
884 | /// |
---|
885 | /// Copy constructor. |
---|
886 | /// |
---|
887 | GraphIncIt(GraphIncIt const& gi) : _Item(gi) {} |
---|
888 | /// \brief Sets the iterator to the first edge incoming into or outgoing |
---|
889 | /// from the node. |
---|
890 | /// |
---|
891 | /// Sets the iterator to the first edge incoming into or outgoing |
---|
892 | /// from the node. |
---|
893 | /// |
---|
894 | explicit GraphIncIt(const _Graph&, const _Base&) {} |
---|
895 | /// \brief Invalid constructor \& conversion. |
---|
896 | /// |
---|
897 | /// This constructor initializes the item to be invalid. |
---|
898 | /// \sa Invalid for more details. |
---|
899 | GraphIncIt(Invalid) {} |
---|
900 | /// \brief Assign operator for iterators. |
---|
901 | /// |
---|
902 | /// The iterators are assignable. |
---|
903 | /// |
---|
904 | GraphIncIt& operator=(GraphIncIt const&) { return *this; } |
---|
905 | /// \brief Next item. |
---|
906 | /// |
---|
907 | /// Assign the iterator to the next item. |
---|
908 | /// |
---|
909 | GraphIncIt& operator++() { return *this; } |
---|
910 | |
---|
911 | /// \brief Equality operator |
---|
912 | /// |
---|
913 | /// Two iterators are equal if and only if they point to the |
---|
914 | /// same object or both are invalid. |
---|
915 | bool operator==(const GraphIncIt&) const { return true;} |
---|
916 | |
---|
917 | /// \brief Inequality operator |
---|
918 | /// |
---|
919 | /// \sa operator==(Node n) |
---|
920 | /// |
---|
921 | bool operator!=(const GraphIncIt&) const { return true;} |
---|
922 | |
---|
923 | template <typename _GraphIncIt> |
---|
924 | struct Constraints { |
---|
925 | void constraints() { |
---|
926 | checkConcept<GraphItem<_selector>, _GraphIncIt>(); |
---|
927 | _GraphIncIt it1(graph, node); |
---|
928 | _GraphIncIt it2; |
---|
929 | |
---|
930 | it2 = ++it1; |
---|
931 | ++it2 = it1; |
---|
932 | ++(++it1); |
---|
933 | _Item e = it1; |
---|
934 | e = it2; |
---|
935 | |
---|
936 | } |
---|
937 | |
---|
938 | _Item edge; |
---|
939 | _Base node; |
---|
940 | _Graph graph; |
---|
941 | _GraphIncIt it; |
---|
942 | }; |
---|
943 | }; |
---|
944 | |
---|
945 | |
---|
946 | /// \brief An empty iterable graph class. |
---|
947 | /// |
---|
948 | /// This class provides beside the core graph features |
---|
949 | /// iterator based iterable interface for the graph structure. |
---|
950 | /// This concept is part of the GraphConcept. |
---|
951 | template <typename _Base = BaseGraphComponent> |
---|
952 | class IterableGraphComponent : public _Base { |
---|
953 | |
---|
954 | public: |
---|
955 | |
---|
956 | typedef _Base Base; |
---|
957 | typedef typename Base::Node Node; |
---|
958 | typedef typename Base::Edge Edge; |
---|
959 | |
---|
960 | typedef IterableGraphComponent Graph; |
---|
961 | |
---|
962 | |
---|
963 | /// \brief This iterator goes through each node. |
---|
964 | /// |
---|
965 | /// This iterator goes through each node. |
---|
966 | /// |
---|
967 | typedef GraphItemIt<Graph, Node> NodeIt; |
---|
968 | |
---|
969 | /// \brief This iterator goes through each node. |
---|
970 | /// |
---|
971 | /// This iterator goes through each node. |
---|
972 | /// |
---|
973 | typedef GraphItemIt<Graph, Edge> EdgeIt; |
---|
974 | |
---|
975 | /// \brief This iterator goes trough the incoming edges of a node. |
---|
976 | /// |
---|
977 | /// This iterator goes trough the \e inccoming edges of a certain node |
---|
978 | /// of a graph. |
---|
979 | typedef GraphIncIt<Graph, Edge, Node, 'i'> InEdgeIt; |
---|
980 | |
---|
981 | /// \brief This iterator goes trough the outgoing edges of a node. |
---|
982 | /// |
---|
983 | /// This iterator goes trough the \e outgoing edges of a certain node |
---|
984 | /// of a graph. |
---|
985 | typedef GraphIncIt<Graph, Edge, Node, 'o'> OutEdgeIt; |
---|
986 | |
---|
987 | /// \brief The base node of the iterator. |
---|
988 | /// |
---|
989 | /// Gives back the base node of the iterator. |
---|
990 | /// It is always the target of the pointed edge. |
---|
991 | Node baseNode(const InEdgeIt&) const { return INVALID; } |
---|
992 | |
---|
993 | /// \brief The running node of the iterator. |
---|
994 | /// |
---|
995 | /// Gives back the running node of the iterator. |
---|
996 | /// It is always the source of the pointed edge. |
---|
997 | Node runningNode(const InEdgeIt&) const { return INVALID; } |
---|
998 | |
---|
999 | /// \brief The base node of the iterator. |
---|
1000 | /// |
---|
1001 | /// Gives back the base node of the iterator. |
---|
1002 | /// It is always the source of the pointed edge. |
---|
1003 | Node baseNode(const OutEdgeIt&) const { return INVALID; } |
---|
1004 | |
---|
1005 | /// \brief The running node of the iterator. |
---|
1006 | /// |
---|
1007 | /// Gives back the running node of the iterator. |
---|
1008 | /// It is always the target of the pointed edge. |
---|
1009 | Node runningNode(const OutEdgeIt&) const { return INVALID; } |
---|
1010 | |
---|
1011 | /// \brief The opposite node on the given edge. |
---|
1012 | /// |
---|
1013 | /// Gives back the opposite on the given edge. |
---|
1014 | /// \todo It should not be here. |
---|
1015 | Node oppositeNode(const Node&, const Edge&) const { return INVALID; } |
---|
1016 | |
---|
1017 | |
---|
1018 | template <typename _Graph> |
---|
1019 | struct Constraints { |
---|
1020 | void constraints() { |
---|
1021 | checkConcept<Base, _Graph>(); |
---|
1022 | |
---|
1023 | checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>, |
---|
1024 | typename _Graph::EdgeIt >(); |
---|
1025 | checkConcept<GraphItemIt<_Graph, typename _Graph::Node>, |
---|
1026 | typename _Graph::NodeIt >(); |
---|
1027 | checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
---|
1028 | typename _Graph::Node, 'i'>, typename _Graph::InEdgeIt>(); |
---|
1029 | checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
---|
1030 | typename _Graph::Node, 'o'>, typename _Graph::OutEdgeIt>(); |
---|
1031 | |
---|
1032 | typename _Graph::Node n; |
---|
1033 | typename _Graph::InEdgeIt ieit(INVALID); |
---|
1034 | typename _Graph::OutEdgeIt oeit(INVALID); |
---|
1035 | n = graph.baseNode(ieit); |
---|
1036 | n = graph.runningNode(ieit); |
---|
1037 | n = graph.baseNode(oeit); |
---|
1038 | n = graph.runningNode(oeit); |
---|
1039 | ignore_unused_variable_warning(n); |
---|
1040 | } |
---|
1041 | |
---|
1042 | const _Graph& graph; |
---|
1043 | |
---|
1044 | }; |
---|
1045 | }; |
---|
1046 | |
---|
1047 | /// \brief An empty iterable undirected graph class. |
---|
1048 | /// |
---|
1049 | /// This class provides beside the core graph features iterator |
---|
1050 | /// based iterable interface for the undirected graph structure. |
---|
1051 | /// This concept is part of the GraphConcept. |
---|
1052 | template <typename _Base = BaseUGraphComponent> |
---|
1053 | class IterableUGraphComponent : public IterableGraphComponent<_Base> { |
---|
1054 | public: |
---|
1055 | |
---|
1056 | typedef _Base Base; |
---|
1057 | typedef typename Base::Node Node; |
---|
1058 | typedef typename Base::Edge Edge; |
---|
1059 | typedef typename Base::UEdge UEdge; |
---|
1060 | |
---|
1061 | |
---|
1062 | typedef IterableUGraphComponent Graph; |
---|
1063 | using IterableGraphComponent<_Base>::baseNode; |
---|
1064 | using IterableGraphComponent<_Base>::runningNode; |
---|
1065 | |
---|
1066 | |
---|
1067 | /// \brief This iterator goes through each node. |
---|
1068 | /// |
---|
1069 | /// This iterator goes through each node. |
---|
1070 | typedef GraphItemIt<Graph, UEdge> UEdgeIt; |
---|
1071 | /// \brief This iterator goes trough the incident edges of a |
---|
1072 | /// node. |
---|
1073 | /// |
---|
1074 | /// This iterator goes trough the incident edges of a certain |
---|
1075 | /// node of a graph. |
---|
1076 | typedef GraphIncIt<Graph, UEdge, Node, 'u'> IncEdgeIt; |
---|
1077 | /// \brief The base node of the iterator. |
---|
1078 | /// |
---|
1079 | /// Gives back the base node of the iterator. |
---|
1080 | Node baseNode(const IncEdgeIt&) const { return INVALID; } |
---|
1081 | |
---|
1082 | /// \brief The running node of the iterator. |
---|
1083 | /// |
---|
1084 | /// Gives back the running node of the iterator. |
---|
1085 | Node runningNode(const IncEdgeIt&) const { return INVALID; } |
---|
1086 | |
---|
1087 | template <typename _Graph> |
---|
1088 | struct Constraints { |
---|
1089 | void constraints() { |
---|
1090 | checkConcept<Base, _Graph>(); |
---|
1091 | checkConcept<IterableGraphComponent<Base>, _Graph>(); |
---|
1092 | |
---|
1093 | checkConcept<GraphItemIt<_Graph, typename _Graph::UEdge>, |
---|
1094 | typename _Graph::UEdgeIt >(); |
---|
1095 | checkConcept<GraphIncIt<_Graph, typename _Graph::UEdge, |
---|
1096 | typename _Graph::Node, 'u'>, typename _Graph::IncEdgeIt>(); |
---|
1097 | |
---|
1098 | typename _Graph::Node n; |
---|
1099 | typename _Graph::IncEdgeIt ueit(INVALID); |
---|
1100 | n = graph.baseNode(ueit); |
---|
1101 | n = graph.runningNode(ueit); |
---|
1102 | } |
---|
1103 | |
---|
1104 | const _Graph& graph; |
---|
1105 | |
---|
1106 | }; |
---|
1107 | }; |
---|
1108 | |
---|
1109 | /// \brief An empty alteration notifier graph class. |
---|
1110 | /// |
---|
1111 | /// This class provides beside the core graph features alteration |
---|
1112 | /// notifier interface for the graph structure. This implements |
---|
1113 | /// an observer-notifier pattern for each graph item. More |
---|
1114 | /// obsevers can be registered into the notifier and whenever an |
---|
1115 | /// alteration occured in the graph all the observers will |
---|
1116 | /// notified about it. |
---|
1117 | template <typename _Base = BaseGraphComponent> |
---|
1118 | class AlterableGraphComponent : public _Base { |
---|
1119 | public: |
---|
1120 | |
---|
1121 | typedef _Base Base; |
---|
1122 | typedef typename Base::Node Node; |
---|
1123 | typedef typename Base::Edge Edge; |
---|
1124 | |
---|
1125 | |
---|
1126 | /// The node observer registry. |
---|
1127 | typedef AlterationNotifier<AlterableGraphComponent, Node> |
---|
1128 | NodeNotifier; |
---|
1129 | /// The edge observer registry. |
---|
1130 | typedef AlterationNotifier<AlterableGraphComponent, Edge> |
---|
1131 | EdgeNotifier; |
---|
1132 | |
---|
1133 | /// \brief Gives back the node alteration notifier. |
---|
1134 | /// |
---|
1135 | /// Gives back the node alteration notifier. |
---|
1136 | NodeNotifier& getNotifier(Node) const { |
---|
1137 | return NodeNotifier(); |
---|
1138 | } |
---|
1139 | |
---|
1140 | /// \brief Gives back the edge alteration notifier. |
---|
1141 | /// |
---|
1142 | /// Gives back the edge alteration notifier. |
---|
1143 | EdgeNotifier& getNotifier(Edge) const { |
---|
1144 | return EdgeNotifier(); |
---|
1145 | } |
---|
1146 | |
---|
1147 | template <typename _Graph> |
---|
1148 | struct Constraints { |
---|
1149 | void constraints() { |
---|
1150 | checkConcept<Base, _Graph>(); |
---|
1151 | typename _Graph::NodeNotifier& nn |
---|
1152 | = graph.getNotifier(typename _Graph::Node()); |
---|
1153 | |
---|
1154 | typename _Graph::EdgeNotifier& en |
---|
1155 | = graph.getNotifier(typename _Graph::Edge()); |
---|
1156 | |
---|
1157 | ignore_unused_variable_warning(nn); |
---|
1158 | ignore_unused_variable_warning(en); |
---|
1159 | } |
---|
1160 | |
---|
1161 | const _Graph& graph; |
---|
1162 | |
---|
1163 | }; |
---|
1164 | |
---|
1165 | }; |
---|
1166 | |
---|
1167 | /// \brief An empty alteration notifier undirected graph class. |
---|
1168 | /// |
---|
1169 | /// This class provides beside the core graph features alteration |
---|
1170 | /// notifier interface for the graph structure. This implements |
---|
1171 | /// an observer-notifier pattern for each graph item. More |
---|
1172 | /// obsevers can be registered into the notifier and whenever an |
---|
1173 | /// alteration occured in the graph all the observers will |
---|
1174 | /// notified about it. |
---|
1175 | template <typename _Base = BaseUGraphComponent> |
---|
1176 | class AlterableUGraphComponent : public AlterableGraphComponent<_Base> { |
---|
1177 | public: |
---|
1178 | |
---|
1179 | typedef _Base Base; |
---|
1180 | typedef typename Base::UEdge UEdge; |
---|
1181 | |
---|
1182 | |
---|
1183 | /// The edge observer registry. |
---|
1184 | typedef AlterationNotifier<AlterableUGraphComponent, UEdge> |
---|
1185 | UEdgeNotifier; |
---|
1186 | |
---|
1187 | /// \brief Gives back the edge alteration notifier. |
---|
1188 | /// |
---|
1189 | /// Gives back the edge alteration notifier. |
---|
1190 | UEdgeNotifier& getNotifier(UEdge) const { |
---|
1191 | return UEdgeNotifier(); |
---|
1192 | } |
---|
1193 | |
---|
1194 | template <typename _Graph> |
---|
1195 | struct Constraints { |
---|
1196 | void constraints() { |
---|
1197 | checkConcept<Base, _Graph>(); |
---|
1198 | checkConcept<AlterableGraphComponent, _Graph>(); |
---|
1199 | typename _Graph::UEdgeNotifier& uen |
---|
1200 | = graph.getNotifier(typename _Graph::UEdge()); |
---|
1201 | ignore_unused_variable_warning(uen); |
---|
1202 | } |
---|
1203 | |
---|
1204 | const _Graph& graph; |
---|
1205 | |
---|
1206 | }; |
---|
1207 | |
---|
1208 | }; |
---|
1209 | |
---|
1210 | |
---|
1211 | /// \brief Class describing the concept of graph maps |
---|
1212 | /// |
---|
1213 | /// This class describes the common interface of the graph maps |
---|
1214 | /// (NodeMap, EdgeMap), that is \ref maps-page "maps" which can be used to |
---|
1215 | /// associate data to graph descriptors (nodes or edges). |
---|
1216 | template <typename _Graph, typename _Item, typename _Value> |
---|
1217 | class GraphMap : public ReadWriteMap<_Item, _Value> { |
---|
1218 | public: |
---|
1219 | |
---|
1220 | typedef ReadWriteMap<_Item, _Value> Parent; |
---|
1221 | |
---|
1222 | /// The graph type of the map. |
---|
1223 | typedef _Graph Graph; |
---|
1224 | /// The key type of the map. |
---|
1225 | typedef _Item Key; |
---|
1226 | /// The value type of the map. |
---|
1227 | typedef _Value Value; |
---|
1228 | |
---|
1229 | /// \brief Construct a new map. |
---|
1230 | /// |
---|
1231 | /// Construct a new map for the graph. |
---|
1232 | explicit GraphMap(const Graph&) {} |
---|
1233 | /// \brief Construct a new map with default value. |
---|
1234 | /// |
---|
1235 | /// Construct a new map for the graph and initalise the values. |
---|
1236 | GraphMap(const Graph&, const Value&) {} |
---|
1237 | /// \brief Copy constructor. |
---|
1238 | /// |
---|
1239 | /// Copy Constructor. |
---|
1240 | GraphMap(const GraphMap&) : Parent() {} |
---|
1241 | |
---|
1242 | /// \brief Assign operator. |
---|
1243 | /// |
---|
1244 | /// Assign operator. It does not mofify the underlying graph, |
---|
1245 | /// it just iterates on the current item set and set the map |
---|
1246 | /// with the value returned by the assigned map. |
---|
1247 | template <typename CMap> |
---|
1248 | GraphMap& operator=(const CMap&) { |
---|
1249 | checkConcept<ReadMap<Key, Value>, CMap>(); |
---|
1250 | return *this; |
---|
1251 | } |
---|
1252 | |
---|
1253 | template<typename _Map> |
---|
1254 | struct Constraints { |
---|
1255 | void constraints() { |
---|
1256 | checkConcept<ReadWriteMap<Key, Value>, _Map >(); |
---|
1257 | // Construction with a graph parameter |
---|
1258 | _Map a(g); |
---|
1259 | // Constructor with a graph and a default value parameter |
---|
1260 | _Map a2(g,t); |
---|
1261 | // Copy constructor. |
---|
1262 | _Map b(c); |
---|
1263 | |
---|
1264 | ReadMap<Key, Value> cmap; |
---|
1265 | b = cmap; |
---|
1266 | |
---|
1267 | ignore_unused_variable_warning(a2); |
---|
1268 | ignore_unused_variable_warning(b); |
---|
1269 | } |
---|
1270 | |
---|
1271 | const _Map &c; |
---|
1272 | const Graph &g; |
---|
1273 | const typename GraphMap::Value &t; |
---|
1274 | }; |
---|
1275 | |
---|
1276 | }; |
---|
1277 | |
---|
1278 | /// \brief An empty mappable graph class. |
---|
1279 | /// |
---|
1280 | /// This class provides beside the core graph features |
---|
1281 | /// map interface for the graph structure. |
---|
1282 | /// This concept is part of the Graph concept. |
---|
1283 | template <typename _Base = BaseGraphComponent> |
---|
1284 | class MappableGraphComponent : public _Base { |
---|
1285 | public: |
---|
1286 | |
---|
1287 | typedef _Base Base; |
---|
1288 | typedef typename Base::Node Node; |
---|
1289 | typedef typename Base::Edge Edge; |
---|
1290 | |
---|
1291 | typedef MappableGraphComponent Graph; |
---|
1292 | |
---|
1293 | /// \brief ReadWrite map of the nodes. |
---|
1294 | /// |
---|
1295 | /// ReadWrite map of the nodes. |
---|
1296 | /// |
---|
1297 | template <typename Value> |
---|
1298 | class NodeMap : public GraphMap<Graph, Node, Value> { |
---|
1299 | private: |
---|
1300 | NodeMap(); |
---|
1301 | public: |
---|
1302 | typedef GraphMap<Graph, Node, Value> Parent; |
---|
1303 | |
---|
1304 | /// \brief Construct a new map. |
---|
1305 | /// |
---|
1306 | /// Construct a new map for the graph. |
---|
1307 | /// \todo call the right parent class constructor |
---|
1308 | explicit NodeMap(const Graph& graph) : Parent(graph) {} |
---|
1309 | |
---|
1310 | /// \brief Construct a new map with default value. |
---|
1311 | /// |
---|
1312 | /// Construct a new map for the graph and initalise the values. |
---|
1313 | NodeMap(const Graph& graph, const Value& value) |
---|
1314 | : Parent(graph, value) {} |
---|
1315 | |
---|
1316 | /// \brief Copy constructor. |
---|
1317 | /// |
---|
1318 | /// Copy Constructor. |
---|
1319 | NodeMap(const NodeMap& nm) : Parent(nm) {} |
---|
1320 | |
---|
1321 | /// \brief Assign operator. |
---|
1322 | /// |
---|
1323 | /// Assign operator. |
---|
1324 | template <typename CMap> |
---|
1325 | NodeMap& operator=(const CMap&) { |
---|
1326 | checkConcept<ReadMap<Node, Value>, CMap>(); |
---|
1327 | return *this; |
---|
1328 | } |
---|
1329 | |
---|
1330 | }; |
---|
1331 | |
---|
1332 | /// \brief ReadWrite map of the edges. |
---|
1333 | /// |
---|
1334 | /// ReadWrite map of the edges. |
---|
1335 | /// |
---|
1336 | template <typename Value> |
---|
1337 | class EdgeMap : public GraphMap<Graph, Edge, Value> { |
---|
1338 | private: |
---|
1339 | EdgeMap(); |
---|
1340 | public: |
---|
1341 | typedef GraphMap<Graph, Edge, Value> Parent; |
---|
1342 | |
---|
1343 | /// \brief Construct a new map. |
---|
1344 | /// |
---|
1345 | /// Construct a new map for the graph. |
---|
1346 | /// \todo call the right parent class constructor |
---|
1347 | explicit EdgeMap(const Graph& graph) : Parent(graph) {} |
---|
1348 | |
---|
1349 | /// \brief Construct a new map with default value. |
---|
1350 | /// |
---|
1351 | /// Construct a new map for the graph and initalise the values. |
---|
1352 | EdgeMap(const Graph& graph, const Value& value) |
---|
1353 | : Parent(graph, value) {} |
---|
1354 | |
---|
1355 | /// \brief Copy constructor. |
---|
1356 | /// |
---|
1357 | /// Copy Constructor. |
---|
1358 | EdgeMap(const EdgeMap& nm) : Parent(nm) {} |
---|
1359 | |
---|
1360 | /// \brief Assign operator. |
---|
1361 | /// |
---|
1362 | /// Assign operator. |
---|
1363 | template <typename CMap> |
---|
1364 | EdgeMap& operator=(const CMap&) { |
---|
1365 | checkConcept<ReadMap<Edge, Value>, CMap>(); |
---|
1366 | return *this; |
---|
1367 | } |
---|
1368 | |
---|
1369 | }; |
---|
1370 | |
---|
1371 | |
---|
1372 | template <typename _Graph> |
---|
1373 | struct Constraints { |
---|
1374 | |
---|
1375 | struct Dummy { |
---|
1376 | int value; |
---|
1377 | Dummy() : value(0) {} |
---|
1378 | Dummy(int _v) : value(_v) {} |
---|
1379 | }; |
---|
1380 | |
---|
1381 | void constraints() { |
---|
1382 | checkConcept<Base, _Graph>(); |
---|
1383 | { // int map test |
---|
1384 | typedef typename _Graph::template NodeMap<int> IntNodeMap; |
---|
1385 | checkConcept<GraphMap<_Graph, typename _Graph::Node, int>, |
---|
1386 | IntNodeMap >(); |
---|
1387 | } { // bool map test |
---|
1388 | typedef typename _Graph::template NodeMap<bool> BoolNodeMap; |
---|
1389 | checkConcept<GraphMap<_Graph, typename _Graph::Node, bool>, |
---|
1390 | BoolNodeMap >(); |
---|
1391 | } { // Dummy map test |
---|
1392 | typedef typename _Graph::template NodeMap<Dummy> DummyNodeMap; |
---|
1393 | checkConcept<GraphMap<_Graph, typename _Graph::Node, Dummy>, |
---|
1394 | DummyNodeMap >(); |
---|
1395 | } |
---|
1396 | |
---|
1397 | { // int map test |
---|
1398 | typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
---|
1399 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, |
---|
1400 | IntEdgeMap >(); |
---|
1401 | } { // bool map test |
---|
1402 | typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
---|
1403 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, |
---|
1404 | BoolEdgeMap >(); |
---|
1405 | } { // Dummy map test |
---|
1406 | typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap; |
---|
1407 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>, |
---|
1408 | DummyEdgeMap >(); |
---|
1409 | } |
---|
1410 | } |
---|
1411 | |
---|
1412 | _Graph& graph; |
---|
1413 | }; |
---|
1414 | }; |
---|
1415 | |
---|
1416 | /// \brief An empty mappable base graph class. |
---|
1417 | /// |
---|
1418 | /// This class provides beside the core graph features |
---|
1419 | /// map interface for the graph structure. |
---|
1420 | /// This concept is part of the UGraph concept. |
---|
1421 | template <typename _Base = BaseUGraphComponent> |
---|
1422 | class MappableUGraphComponent : public MappableGraphComponent<_Base> { |
---|
1423 | public: |
---|
1424 | |
---|
1425 | typedef _Base Base; |
---|
1426 | typedef typename Base::UEdge UEdge; |
---|
1427 | |
---|
1428 | typedef MappableUGraphComponent Graph; |
---|
1429 | |
---|
1430 | /// \brief ReadWrite map of the uedges. |
---|
1431 | /// |
---|
1432 | /// ReadWrite map of the uedges. |
---|
1433 | /// |
---|
1434 | template <typename Value> |
---|
1435 | class UEdgeMap : public GraphMap<Graph, UEdge, Value> { |
---|
1436 | public: |
---|
1437 | typedef GraphMap<Graph, UEdge, Value> Parent; |
---|
1438 | |
---|
1439 | /// \brief Construct a new map. |
---|
1440 | /// |
---|
1441 | /// Construct a new map for the graph. |
---|
1442 | /// \todo call the right parent class constructor |
---|
1443 | explicit UEdgeMap(const Graph& graph) : Parent(graph) {} |
---|
1444 | |
---|
1445 | /// \brief Construct a new map with default value. |
---|
1446 | /// |
---|
1447 | /// Construct a new map for the graph and initalise the values. |
---|
1448 | UEdgeMap(const Graph& graph, const Value& value) |
---|
1449 | : Parent(graph, value) {} |
---|
1450 | |
---|
1451 | /// \brief Copy constructor. |
---|
1452 | /// |
---|
1453 | /// Copy Constructor. |
---|
1454 | UEdgeMap(const UEdgeMap& nm) : Parent(nm) {} |
---|
1455 | |
---|
1456 | /// \brief Assign operator. |
---|
1457 | /// |
---|
1458 | /// Assign operator. |
---|
1459 | template <typename CMap> |
---|
1460 | UEdgeMap& operator=(const CMap&) { |
---|
1461 | checkConcept<ReadMap<UEdge, Value>, CMap>(); |
---|
1462 | return *this; |
---|
1463 | } |
---|
1464 | |
---|
1465 | }; |
---|
1466 | |
---|
1467 | |
---|
1468 | template <typename _Graph> |
---|
1469 | struct Constraints { |
---|
1470 | |
---|
1471 | struct Dummy { |
---|
1472 | int value; |
---|
1473 | Dummy() : value(0) {} |
---|
1474 | Dummy(int _v) : value(_v) {} |
---|
1475 | }; |
---|
1476 | |
---|
1477 | void constraints() { |
---|
1478 | checkConcept<Base, _Graph>(); |
---|
1479 | checkConcept<MappableGraphComponent<Base>, _Graph>(); |
---|
1480 | |
---|
1481 | { // int map test |
---|
1482 | typedef typename _Graph::template UEdgeMap<int> IntUEdgeMap; |
---|
1483 | checkConcept<GraphMap<_Graph, typename _Graph::UEdge, int>, |
---|
1484 | IntUEdgeMap >(); |
---|
1485 | } { // bool map test |
---|
1486 | typedef typename _Graph::template UEdgeMap<bool> BoolUEdgeMap; |
---|
1487 | checkConcept<GraphMap<_Graph, typename _Graph::UEdge, bool>, |
---|
1488 | BoolUEdgeMap >(); |
---|
1489 | } { // Dummy map test |
---|
1490 | typedef typename _Graph::template UEdgeMap<Dummy> DummyUEdgeMap; |
---|
1491 | checkConcept<GraphMap<_Graph, typename _Graph::UEdge, Dummy>, |
---|
1492 | DummyUEdgeMap >(); |
---|
1493 | } |
---|
1494 | } |
---|
1495 | |
---|
1496 | _Graph& graph; |
---|
1497 | }; |
---|
1498 | }; |
---|
1499 | |
---|
1500 | |
---|
1501 | /// \brief An empty extendable graph class. |
---|
1502 | /// |
---|
1503 | /// This class provides beside the core graph features graph |
---|
1504 | /// extendable interface for the graph structure. The main |
---|
1505 | /// difference between the base and this interface is that the |
---|
1506 | /// graph alterations should handled already on this level. |
---|
1507 | template <typename _Base = BaseGraphComponent> |
---|
1508 | class ExtendableGraphComponent : public _Base { |
---|
1509 | public: |
---|
1510 | |
---|
1511 | typedef typename _Base::Node Node; |
---|
1512 | typedef typename _Base::Edge Edge; |
---|
1513 | |
---|
1514 | /// \brief Adds a new node to the graph. |
---|
1515 | /// |
---|
1516 | /// Adds a new node to the graph. |
---|
1517 | /// |
---|
1518 | Node addNode() { |
---|
1519 | return INVALID; |
---|
1520 | } |
---|
1521 | |
---|
1522 | /// \brief Adds a new edge connects the given two nodes. |
---|
1523 | /// |
---|
1524 | /// Adds a new edge connects the the given two nodes. |
---|
1525 | Edge addEdge(const Node&, const Node&) { |
---|
1526 | return INVALID; |
---|
1527 | } |
---|
1528 | |
---|
1529 | template <typename _Graph> |
---|
1530 | struct Constraints { |
---|
1531 | void constraints() { |
---|
1532 | typename _Graph::Node node_a, node_b; |
---|
1533 | node_a = graph.addNode(); |
---|
1534 | node_b = graph.addNode(); |
---|
1535 | typename _Graph::Edge edge; |
---|
1536 | edge = graph.addEdge(node_a, node_b); |
---|
1537 | } |
---|
1538 | |
---|
1539 | _Graph& graph; |
---|
1540 | }; |
---|
1541 | }; |
---|
1542 | |
---|
1543 | /// \brief An empty extendable base undirected graph class. |
---|
1544 | /// |
---|
1545 | /// This class provides beside the core undirected graph features |
---|
1546 | /// core undircted graph extend interface for the graph structure. |
---|
1547 | /// The main difference between the base and this interface is |
---|
1548 | /// that the graph alterations should handled already on this |
---|
1549 | /// level. |
---|
1550 | template <typename _Base = BaseUGraphComponent> |
---|
1551 | class ExtendableUGraphComponent : public _Base { |
---|
1552 | public: |
---|
1553 | |
---|
1554 | typedef typename _Base::Node Node; |
---|
1555 | typedef typename _Base::UEdge UEdge; |
---|
1556 | |
---|
1557 | /// \brief Adds a new node to the graph. |
---|
1558 | /// |
---|
1559 | /// Adds a new node to the graph. |
---|
1560 | /// |
---|
1561 | Node addNode() { |
---|
1562 | return INVALID; |
---|
1563 | } |
---|
1564 | |
---|
1565 | /// \brief Adds a new edge connects the given two nodes. |
---|
1566 | /// |
---|
1567 | /// Adds a new edge connects the the given two nodes. |
---|
1568 | UEdge addEdge(const Node&, const Node&) { |
---|
1569 | return INVALID; |
---|
1570 | } |
---|
1571 | |
---|
1572 | template <typename _Graph> |
---|
1573 | struct Constraints { |
---|
1574 | void constraints() { |
---|
1575 | typename _Graph::Node node_a, node_b; |
---|
1576 | node_a = graph.addNode(); |
---|
1577 | node_b = graph.addNode(); |
---|
1578 | typename _Graph::UEdge uedge; |
---|
1579 | uedge = graph.addUEdge(node_a, node_b); |
---|
1580 | } |
---|
1581 | |
---|
1582 | _Graph& graph; |
---|
1583 | }; |
---|
1584 | }; |
---|
1585 | |
---|
1586 | /// \brief An empty erasable graph class. |
---|
1587 | /// |
---|
1588 | /// This class provides beside the core graph features core erase |
---|
1589 | /// functions for the graph structure. The main difference between |
---|
1590 | /// the base and this interface is that the graph alterations |
---|
1591 | /// should handled already on this level. |
---|
1592 | template <typename _Base = BaseGraphComponent> |
---|
1593 | class ErasableGraphComponent : public _Base { |
---|
1594 | public: |
---|
1595 | |
---|
1596 | typedef _Base Base; |
---|
1597 | typedef typename Base::Node Node; |
---|
1598 | typedef typename Base::Edge Edge; |
---|
1599 | |
---|
1600 | /// \brief Erase a node from the graph. |
---|
1601 | /// |
---|
1602 | /// Erase a node from the graph. This function should |
---|
1603 | /// erase all edges connecting to the node. |
---|
1604 | void erase(const Node&) {} |
---|
1605 | |
---|
1606 | /// \brief Erase an edge from the graph. |
---|
1607 | /// |
---|
1608 | /// Erase an edge from the graph. |
---|
1609 | /// |
---|
1610 | void erase(const Edge&) {} |
---|
1611 | |
---|
1612 | template <typename _Graph> |
---|
1613 | struct Constraints { |
---|
1614 | void constraints() { |
---|
1615 | typename _Graph::Node node; |
---|
1616 | graph.erase(node); |
---|
1617 | typename _Graph::Edge edge; |
---|
1618 | graph.erase(edge); |
---|
1619 | } |
---|
1620 | |
---|
1621 | _Graph& graph; |
---|
1622 | }; |
---|
1623 | }; |
---|
1624 | |
---|
1625 | /// \brief An empty erasable base undirected graph class. |
---|
1626 | /// |
---|
1627 | /// This class provides beside the core undirected graph features |
---|
1628 | /// core erase functions for the undirceted graph structure. The |
---|
1629 | /// main difference between the base and this interface is that |
---|
1630 | /// the graph alterations should handled already on this level. |
---|
1631 | template <typename _Base = BaseUGraphComponent> |
---|
1632 | class ErasableUGraphComponent : public _Base { |
---|
1633 | public: |
---|
1634 | |
---|
1635 | typedef _Base Base; |
---|
1636 | typedef typename Base::Node Node; |
---|
1637 | typedef typename Base::UEdge UEdge; |
---|
1638 | |
---|
1639 | /// \brief Erase a node from the graph. |
---|
1640 | /// |
---|
1641 | /// Erase a node from the graph. This function should erase |
---|
1642 | /// edges connecting to the node. |
---|
1643 | void erase(const Node&) {} |
---|
1644 | |
---|
1645 | /// \brief Erase an edge from the graph. |
---|
1646 | /// |
---|
1647 | /// Erase an edge from the graph. |
---|
1648 | /// |
---|
1649 | void erase(const UEdge&) {} |
---|
1650 | |
---|
1651 | template <typename _Graph> |
---|
1652 | struct Constraints { |
---|
1653 | void constraints() { |
---|
1654 | typename _Graph::Node node; |
---|
1655 | graph.erase(node); |
---|
1656 | typename _Graph::Edge edge; |
---|
1657 | graph.erase(edge); |
---|
1658 | } |
---|
1659 | |
---|
1660 | _Graph& graph; |
---|
1661 | }; |
---|
1662 | }; |
---|
1663 | |
---|
1664 | /// \brief An empty clearable base graph class. |
---|
1665 | /// |
---|
1666 | /// This class provides beside the core graph features core clear |
---|
1667 | /// functions for the graph structure. The main difference between |
---|
1668 | /// the base and this interface is that the graph alterations |
---|
1669 | /// should handled already on this level. |
---|
1670 | template <typename _Base = BaseGraphComponent> |
---|
1671 | class ClearableGraphComponent : public _Base { |
---|
1672 | public: |
---|
1673 | |
---|
1674 | /// \brief Erase all nodes and edges from the graph. |
---|
1675 | /// |
---|
1676 | /// Erase all nodes and edges from the graph. |
---|
1677 | /// |
---|
1678 | void clear() {} |
---|
1679 | |
---|
1680 | template <typename _Graph> |
---|
1681 | struct Constraints { |
---|
1682 | void constraints() { |
---|
1683 | graph.clear(); |
---|
1684 | } |
---|
1685 | |
---|
1686 | _Graph graph; |
---|
1687 | }; |
---|
1688 | }; |
---|
1689 | |
---|
1690 | /// \brief An empty clearable base undirected graph class. |
---|
1691 | /// |
---|
1692 | /// This class provides beside the core undirected graph features |
---|
1693 | /// core clear functions for the undirected graph structure. The |
---|
1694 | /// main difference between the base and this interface is that |
---|
1695 | /// the graph alterations should handled already on this level. |
---|
1696 | template <typename _Base = BaseUGraphComponent> |
---|
1697 | class ClearableUGraphComponent : public _Base { |
---|
1698 | public: |
---|
1699 | |
---|
1700 | /// \brief Erase all nodes and undirected edges from the graph. |
---|
1701 | /// |
---|
1702 | /// Erase all nodes and undirected edges from the graph. |
---|
1703 | /// |
---|
1704 | void clear() {} |
---|
1705 | |
---|
1706 | template <typename _Graph> |
---|
1707 | struct Constraints { |
---|
1708 | void constraints() { |
---|
1709 | graph.clear(); |
---|
1710 | } |
---|
1711 | |
---|
1712 | _Graph graph; |
---|
1713 | }; |
---|
1714 | }; |
---|
1715 | |
---|
1716 | } |
---|
1717 | |
---|
1718 | } |
---|
1719 | |
---|
1720 | #endif |
---|