[959] | 1 | /* -*- C++ -*- |
---|
[1435] | 2 | * lemon/concept/graph.h - Part of LEMON, a generic C++ optimization library |
---|
[959] | 3 | * |
---|
[1164] | 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
[1359] | 5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
[959] | 6 | * |
---|
| 7 | * Permission to use, modify and distribute this software is granted |
---|
| 8 | * provided that this copyright notice appears in all copies. For |
---|
| 9 | * precise terms see the accompanying LICENSE file. |
---|
| 10 | * |
---|
| 11 | * This software is provided "AS IS" with no warranty of any kind, |
---|
| 12 | * express or implied, and with no claim as to its suitability for any |
---|
| 13 | * purpose. |
---|
| 14 | * |
---|
| 15 | */ |
---|
| 16 | |
---|
| 17 | #ifndef LEMON_CONCEPT_GRAPH_H |
---|
| 18 | #define LEMON_CONCEPT_GRAPH_H |
---|
| 19 | |
---|
[1030] | 20 | ///\ingroup graph_concepts |
---|
[959] | 21 | ///\file |
---|
| 22 | ///\brief Declaration of Graph. |
---|
| 23 | |
---|
| 24 | #include <lemon/invalid.h> |
---|
[1448] | 25 | #include <lemon/utility.h> |
---|
[959] | 26 | #include <lemon/concept/maps.h> |
---|
| 27 | #include <lemon/concept_check.h> |
---|
| 28 | #include <lemon/concept/graph_component.h> |
---|
| 29 | |
---|
| 30 | namespace lemon { |
---|
| 31 | namespace concept { |
---|
[1136] | 32 | |
---|
[959] | 33 | |
---|
[961] | 34 | /**************** The full-featured graph concepts ****************/ |
---|
[959] | 35 | |
---|
[1136] | 36 | |
---|
[1426] | 37 | /// \brief Modular static graph class. |
---|
[1136] | 38 | /// |
---|
| 39 | /// It should be the same as the \c StaticGraph class. |
---|
| 40 | class _StaticGraph |
---|
[961] | 41 | : virtual public BaseGraphComponent, |
---|
[1426] | 42 | public IterableGraphComponent, public MappableGraphComponent { |
---|
[959] | 43 | public: |
---|
[1448] | 44 | ///\e |
---|
| 45 | |
---|
| 46 | ///\todo undocumented |
---|
| 47 | /// |
---|
| 48 | typedef False UndirTag; |
---|
| 49 | |
---|
[959] | 50 | typedef BaseGraphComponent::Node Node; |
---|
| 51 | typedef BaseGraphComponent::Edge Edge; |
---|
| 52 | |
---|
[989] | 53 | template <typename _Graph> |
---|
| 54 | struct Constraints { |
---|
[1426] | 55 | void constraints() { |
---|
| 56 | checkConcept<IterableGraphComponent, _Graph>(); |
---|
| 57 | checkConcept<MappableGraphComponent, _Graph>(); |
---|
| 58 | } |
---|
[989] | 59 | }; |
---|
[959] | 60 | }; |
---|
| 61 | |
---|
[1426] | 62 | /// \brief Modular extendable graph class. |
---|
[1136] | 63 | /// |
---|
| 64 | /// It should be the same as the \c ExtendableGraph class. |
---|
| 65 | class _ExtendableGraph |
---|
| 66 | : virtual public BaseGraphComponent, public _StaticGraph, |
---|
[1426] | 67 | public ExtendableGraphComponent, public ClearableGraphComponent { |
---|
[959] | 68 | public: |
---|
| 69 | typedef BaseGraphComponent::Node Node; |
---|
| 70 | typedef BaseGraphComponent::Edge Edge; |
---|
| 71 | |
---|
[989] | 72 | template <typename _Graph> |
---|
| 73 | struct Constraints { |
---|
[1426] | 74 | void constraints() { |
---|
| 75 | checkConcept<_StaticGraph, _Graph >(); |
---|
| 76 | checkConcept<ExtendableGraphComponent, _Graph >(); |
---|
| 77 | checkConcept<ClearableGraphComponent, _Graph >(); |
---|
| 78 | } |
---|
[989] | 79 | }; |
---|
[959] | 80 | }; |
---|
| 81 | |
---|
[1426] | 82 | /// \brief Modular erasable graph class. |
---|
[1136] | 83 | /// |
---|
| 84 | /// It should be the same as the \c ErasableGraph class. |
---|
| 85 | class _ErasableGraph |
---|
| 86 | : virtual public BaseGraphComponent, public _ExtendableGraph, |
---|
[1426] | 87 | public ErasableGraphComponent { |
---|
[959] | 88 | public: |
---|
| 89 | typedef BaseGraphComponent::Node Node; |
---|
| 90 | typedef BaseGraphComponent::Edge Edge; |
---|
| 91 | |
---|
[989] | 92 | template <typename _Graph> |
---|
| 93 | struct Constraints { |
---|
[1426] | 94 | void constraints() { |
---|
| 95 | checkConcept<_ExtendableGraph, _Graph >(); |
---|
| 96 | checkConcept<ErasableGraphComponent, _Graph >(); |
---|
| 97 | } |
---|
[989] | 98 | }; |
---|
[959] | 99 | }; |
---|
| 100 | |
---|
[1620] | 101 | /// \addtogroup graph_concepts |
---|
| 102 | /// @{ |
---|
| 103 | |
---|
[1136] | 104 | /// An empty static graph class. |
---|
| 105 | |
---|
| 106 | /// This class provides all the common features of a graph structure, |
---|
| 107 | /// however completely without implementations and real data structures |
---|
| 108 | /// behind the interface. |
---|
| 109 | /// All graph algorithms should compile with this class, but it will not |
---|
| 110 | /// run properly, of course. |
---|
| 111 | /// |
---|
| 112 | /// It can be used for checking the interface compatibility, |
---|
| 113 | /// or it can serve as a skeleton of a new graph structure. |
---|
| 114 | /// |
---|
| 115 | /// Also, you will find here the full documentation of a certain graph |
---|
| 116 | /// feature, the documentation of a real graph imlementation |
---|
| 117 | /// like @ref ListGraph or |
---|
| 118 | /// @ref SmartGraph will just refer to this structure. |
---|
| 119 | /// |
---|
| 120 | /// \todo A pages describing the concept of concept description would |
---|
| 121 | /// be nice. |
---|
| 122 | class StaticGraph |
---|
| 123 | { |
---|
| 124 | public: |
---|
[1448] | 125 | ///\e |
---|
| 126 | |
---|
| 127 | ///\todo undocumented |
---|
| 128 | /// |
---|
| 129 | typedef False UndirTag; |
---|
| 130 | |
---|
[1136] | 131 | /// Defalult constructor. |
---|
| 132 | |
---|
| 133 | /// Defalult constructor. |
---|
| 134 | /// |
---|
| 135 | StaticGraph() { } |
---|
| 136 | ///Copy consructor. |
---|
| 137 | |
---|
| 138 | // ///\todo It is not clear, what we expect from a copy constructor. |
---|
| 139 | // ///E.g. How to assign the nodes/edges to each other? What about maps? |
---|
| 140 | // StaticGraph(const StaticGraph& g) { } |
---|
| 141 | |
---|
| 142 | /// The base type of node iterators, |
---|
| 143 | /// or in other words, the trivial node iterator. |
---|
| 144 | |
---|
| 145 | /// This is the base type of each node iterator, |
---|
| 146 | /// thus each kind of node iterator converts to this. |
---|
| 147 | /// More precisely each kind of node iterator should be inherited |
---|
| 148 | /// from the trivial node iterator. |
---|
| 149 | class Node { |
---|
| 150 | public: |
---|
[1426] | 151 | /// Default constructor |
---|
[1136] | 152 | |
---|
[1426] | 153 | /// @warning The default constructor sets the iterator |
---|
| 154 | /// to an undefined value. |
---|
| 155 | Node() { } |
---|
| 156 | /// Copy constructor. |
---|
[1136] | 157 | |
---|
[1426] | 158 | /// Copy constructor. |
---|
| 159 | /// |
---|
| 160 | Node(const Node&) { } |
---|
[1136] | 161 | |
---|
[1426] | 162 | /// Invalid constructor \& conversion. |
---|
[1136] | 163 | |
---|
[1426] | 164 | /// This constructor initializes the iterator to be invalid. |
---|
| 165 | /// \sa Invalid for more details. |
---|
| 166 | Node(Invalid) { } |
---|
| 167 | /// Equality operator |
---|
[1136] | 168 | |
---|
[1426] | 169 | /// Two iterators are equal if and only if they point to the |
---|
| 170 | /// same object or both are invalid. |
---|
| 171 | bool operator==(Node) const { return true; } |
---|
[1136] | 172 | |
---|
[1426] | 173 | /// Inequality operator |
---|
| 174 | |
---|
| 175 | /// \sa operator==(Node n) |
---|
| 176 | /// |
---|
| 177 | bool operator!=(Node) const { return true; } |
---|
[1136] | 178 | |
---|
| 179 | }; |
---|
| 180 | |
---|
| 181 | /// This iterator goes through each node. |
---|
| 182 | |
---|
| 183 | /// This iterator goes through each node. |
---|
| 184 | /// Its usage is quite simple, for example you can count the number |
---|
| 185 | /// of nodes in graph \c g of type \c Graph like this: |
---|
| 186 | /// \code |
---|
| 187 | /// int count=0; |
---|
[1426] | 188 | /// for (Graph::NodeIt n(g); n!=INVALID; ++n) ++count; |
---|
[1136] | 189 | /// \endcode |
---|
| 190 | class NodeIt : public Node { |
---|
| 191 | public: |
---|
[1426] | 192 | /// Default constructor |
---|
[1136] | 193 | |
---|
[1426] | 194 | /// @warning The default constructor sets the iterator |
---|
| 195 | /// to an undefined value. |
---|
| 196 | NodeIt() { } |
---|
| 197 | /// Copy constructor. |
---|
| 198 | |
---|
| 199 | /// Copy constructor. |
---|
| 200 | /// |
---|
| 201 | NodeIt(const NodeIt& n) : Node(n) { } |
---|
| 202 | /// Invalid constructor \& conversion. |
---|
[1136] | 203 | |
---|
[1426] | 204 | /// Initialize the iterator to be invalid. |
---|
| 205 | /// \sa Invalid for more details. |
---|
| 206 | NodeIt(Invalid) { } |
---|
| 207 | /// Sets the iterator to the first node. |
---|
[1136] | 208 | |
---|
[1426] | 209 | /// Sets the iterator to the first node of \c g. |
---|
| 210 | /// |
---|
| 211 | NodeIt(const StaticGraph&) { } |
---|
| 212 | /// Node -> NodeIt conversion. |
---|
[1136] | 213 | |
---|
[1470] | 214 | /// Sets the iterator to the node of \c the graph pointed by |
---|
| 215 | /// the trivial iterator. |
---|
[1426] | 216 | /// This feature necessitates that each time we |
---|
| 217 | /// iterate the edge-set, the iteration order is the same. |
---|
[1470] | 218 | NodeIt(const StaticGraph&, const Node&) { } |
---|
[1426] | 219 | /// Next node. |
---|
[1136] | 220 | |
---|
[1426] | 221 | /// Assign the iterator to the next node. |
---|
| 222 | /// |
---|
| 223 | NodeIt& operator++() { return *this; } |
---|
[1136] | 224 | }; |
---|
| 225 | |
---|
| 226 | |
---|
| 227 | /// The base type of the edge iterators. |
---|
| 228 | |
---|
| 229 | /// The base type of the edge iterators. |
---|
| 230 | /// |
---|
| 231 | class Edge { |
---|
| 232 | public: |
---|
[1426] | 233 | /// Default constructor |
---|
[1136] | 234 | |
---|
[1426] | 235 | /// @warning The default constructor sets the iterator |
---|
| 236 | /// to an undefined value. |
---|
| 237 | Edge() { } |
---|
| 238 | /// Copy constructor. |
---|
[1136] | 239 | |
---|
[1426] | 240 | /// Copy constructor. |
---|
| 241 | /// |
---|
| 242 | Edge(const Edge&) { } |
---|
| 243 | /// Initialize the iterator to be invalid. |
---|
[1136] | 244 | |
---|
[1426] | 245 | /// Initialize the iterator to be invalid. |
---|
| 246 | /// |
---|
| 247 | Edge(Invalid) { } |
---|
| 248 | /// Equality operator |
---|
[1136] | 249 | |
---|
[1426] | 250 | /// Two iterators are equal if and only if they point to the |
---|
| 251 | /// same object or both are invalid. |
---|
| 252 | bool operator==(Edge) const { return true; } |
---|
| 253 | /// Inequality operator |
---|
[1136] | 254 | |
---|
[1620] | 255 | /// \sa operator==(Edge n) |
---|
[1426] | 256 | /// |
---|
| 257 | bool operator!=(Edge) const { return true; } |
---|
[1136] | 258 | }; |
---|
| 259 | |
---|
| 260 | /// This iterator goes trough the outgoing edges of a node. |
---|
| 261 | |
---|
| 262 | /// This iterator goes trough the \e outgoing edges of a certain node |
---|
| 263 | /// of a graph. |
---|
| 264 | /// Its usage is quite simple, for example you can count the number |
---|
| 265 | /// of outgoing edges of a node \c n |
---|
| 266 | /// in graph \c g of type \c Graph as follows. |
---|
| 267 | /// \code |
---|
| 268 | /// int count=0; |
---|
| 269 | /// for (Graph::OutEdgeIt e(g, n); e!=INVALID; ++e) ++count; |
---|
| 270 | /// \endcode |
---|
| 271 | |
---|
| 272 | class OutEdgeIt : public Edge { |
---|
| 273 | public: |
---|
[1426] | 274 | /// Default constructor |
---|
[1136] | 275 | |
---|
[1426] | 276 | /// @warning The default constructor sets the iterator |
---|
| 277 | /// to an undefined value. |
---|
| 278 | OutEdgeIt() { } |
---|
| 279 | /// Copy constructor. |
---|
[1136] | 280 | |
---|
[1426] | 281 | /// Copy constructor. |
---|
| 282 | /// |
---|
| 283 | OutEdgeIt(const OutEdgeIt& e) : Edge(e) { } |
---|
| 284 | /// Initialize the iterator to be invalid. |
---|
[1136] | 285 | |
---|
[1426] | 286 | /// Initialize the iterator to be invalid. |
---|
| 287 | /// |
---|
| 288 | OutEdgeIt(Invalid) { } |
---|
| 289 | /// This constructor sets the iterator to the first outgoing edge. |
---|
[1136] | 290 | |
---|
[1426] | 291 | /// This constructor sets the iterator to the first outgoing edge of |
---|
| 292 | /// the node. |
---|
| 293 | ///@param n the node |
---|
| 294 | ///@param g the graph |
---|
| 295 | OutEdgeIt(const StaticGraph&, const Node&) { } |
---|
| 296 | /// Edge -> OutEdgeIt conversion |
---|
[1136] | 297 | |
---|
[1470] | 298 | /// Sets the iterator to the value of the trivial iterator. |
---|
| 299 | /// This feature necessitates that each time we |
---|
[1426] | 300 | /// iterate the edge-set, the iteration order is the same. |
---|
[1470] | 301 | OutEdgeIt(const StaticGraph&, const Edge&) { } |
---|
[1426] | 302 | ///Next outgoing edge |
---|
| 303 | |
---|
| 304 | /// Assign the iterator to the next |
---|
| 305 | /// outgoing edge of the corresponding node. |
---|
| 306 | OutEdgeIt& operator++() { return *this; } |
---|
[1136] | 307 | }; |
---|
| 308 | |
---|
| 309 | /// This iterator goes trough the incoming edges of a node. |
---|
| 310 | |
---|
| 311 | /// This iterator goes trough the \e incoming edges of a certain node |
---|
| 312 | /// of a graph. |
---|
| 313 | /// Its usage is quite simple, for example you can count the number |
---|
| 314 | /// of outgoing edges of a node \c n |
---|
| 315 | /// in graph \c g of type \c Graph as follows. |
---|
| 316 | /// \code |
---|
| 317 | /// int count=0; |
---|
| 318 | /// for(Graph::InEdgeIt e(g, n); e!=INVALID; ++e) ++count; |
---|
| 319 | /// \endcode |
---|
| 320 | |
---|
| 321 | class InEdgeIt : public Edge { |
---|
| 322 | public: |
---|
[1426] | 323 | /// Default constructor |
---|
[1136] | 324 | |
---|
[1426] | 325 | /// @warning The default constructor sets the iterator |
---|
| 326 | /// to an undefined value. |
---|
| 327 | InEdgeIt() { } |
---|
| 328 | /// Copy constructor. |
---|
[1136] | 329 | |
---|
[1426] | 330 | /// Copy constructor. |
---|
| 331 | /// |
---|
| 332 | InEdgeIt(const InEdgeIt& e) : Edge(e) { } |
---|
| 333 | /// Initialize the iterator to be invalid. |
---|
[1136] | 334 | |
---|
[1426] | 335 | /// Initialize the iterator to be invalid. |
---|
| 336 | /// |
---|
| 337 | InEdgeIt(Invalid) { } |
---|
| 338 | /// This constructor sets the iterator to first incoming edge. |
---|
[1136] | 339 | |
---|
[1426] | 340 | /// This constructor set the iterator to the first incoming edge of |
---|
| 341 | /// the node. |
---|
| 342 | ///@param n the node |
---|
| 343 | ///@param g the graph |
---|
| 344 | InEdgeIt(const StaticGraph&, const Node&) { } |
---|
| 345 | /// Edge -> InEdgeIt conversion |
---|
[1136] | 346 | |
---|
[1426] | 347 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
| 348 | /// This feature necessitates that each time we |
---|
| 349 | /// iterate the edge-set, the iteration order is the same. |
---|
| 350 | InEdgeIt(const StaticGraph&, const Edge&) { } |
---|
| 351 | /// Next incoming edge |
---|
[1136] | 352 | |
---|
[1426] | 353 | /// Assign the iterator to the next inedge of the corresponding node. |
---|
| 354 | /// |
---|
| 355 | InEdgeIt& operator++() { return *this; } |
---|
[1136] | 356 | }; |
---|
| 357 | /// This iterator goes through each edge. |
---|
| 358 | |
---|
| 359 | /// This iterator goes through each edge of a graph. |
---|
| 360 | /// Its usage is quite simple, for example you can count the number |
---|
| 361 | /// of edges in a graph \c g of type \c Graph as follows: |
---|
| 362 | /// \code |
---|
| 363 | /// int count=0; |
---|
| 364 | /// for(Graph::EdgeIt e(g); e!=INVALID; ++e) ++count; |
---|
| 365 | /// \endcode |
---|
| 366 | class EdgeIt : public Edge { |
---|
| 367 | public: |
---|
[1426] | 368 | /// Default constructor |
---|
[1136] | 369 | |
---|
[1426] | 370 | /// @warning The default constructor sets the iterator |
---|
| 371 | /// to an undefined value. |
---|
| 372 | EdgeIt() { } |
---|
| 373 | /// Copy constructor. |
---|
[1136] | 374 | |
---|
[1426] | 375 | /// Copy constructor. |
---|
| 376 | /// |
---|
| 377 | EdgeIt(const EdgeIt& e) : Edge(e) { } |
---|
| 378 | /// Initialize the iterator to be invalid. |
---|
[1136] | 379 | |
---|
[1426] | 380 | /// Initialize the iterator to be invalid. |
---|
| 381 | /// |
---|
| 382 | EdgeIt(Invalid) { } |
---|
| 383 | /// This constructor sets the iterator to the first edge. |
---|
[1136] | 384 | |
---|
[1426] | 385 | /// This constructor sets the iterator to the first edge of \c g. |
---|
| 386 | ///@param g the graph |
---|
| 387 | EdgeIt(const StaticGraph&) { } |
---|
| 388 | /// Edge -> EdgeIt conversion |
---|
[1136] | 389 | |
---|
[1426] | 390 | /// Sets the iterator to the value of the trivial iterator \c e. |
---|
| 391 | /// This feature necessitates that each time we |
---|
| 392 | /// iterate the edge-set, the iteration order is the same. |
---|
| 393 | EdgeIt(const StaticGraph&, const Edge&) { } |
---|
| 394 | ///Next edge |
---|
| 395 | |
---|
| 396 | /// Assign the iterator to the next edge. |
---|
| 397 | EdgeIt& operator++() { return *this; } |
---|
[1136] | 398 | }; |
---|
| 399 | ///Gives back the target node of an edge. |
---|
| 400 | |
---|
| 401 | ///Gives back the target node of an edge. |
---|
| 402 | /// |
---|
| 403 | Node target(Edge) const { return INVALID; } |
---|
| 404 | ///Gives back the source node of an edge. |
---|
| 405 | |
---|
| 406 | ///Gives back the source node of an edge. |
---|
| 407 | /// |
---|
| 408 | Node source(Edge) const { return INVALID; } |
---|
[1563] | 409 | |
---|
| 410 | /// Gives back the first Node in the iterating order. |
---|
| 411 | |
---|
| 412 | /// Gives back the first Node in the iterating order. |
---|
| 413 | /// |
---|
| 414 | void first(Node&) const {} |
---|
| 415 | |
---|
| 416 | /// Gives back the next Node in the iterating order. |
---|
| 417 | |
---|
| 418 | /// Gives back the next Node in the iterating order. |
---|
| 419 | /// |
---|
| 420 | void next(Node&) const {} |
---|
| 421 | |
---|
| 422 | /// Gives back the first Edge in the iterating order. |
---|
| 423 | |
---|
| 424 | /// Gives back the first Edge in the iterating order. |
---|
| 425 | /// |
---|
| 426 | void first(Edge&) const {} |
---|
| 427 | /// Gives back the next Edge in the iterating order. |
---|
| 428 | |
---|
| 429 | /// Gives back the next Edge in the iterating order. |
---|
| 430 | /// |
---|
| 431 | void next(Edge&) const {} |
---|
| 432 | |
---|
| 433 | |
---|
| 434 | /// Gives back the first of the Edges point to the given Node. |
---|
| 435 | |
---|
| 436 | /// Gives back the first of the Edges point to the given Node. |
---|
| 437 | /// |
---|
| 438 | void firstIn(Edge&, const Node&) const {} |
---|
| 439 | |
---|
| 440 | /// Gives back the next of the Edges points to the given Node. |
---|
| 441 | |
---|
| 442 | |
---|
| 443 | /// Gives back the next of the Edges points to the given Node. |
---|
| 444 | /// |
---|
| 445 | void nextIn(Edge&) const {} |
---|
| 446 | |
---|
| 447 | /// Gives back the first of the Edges start from the given Node. |
---|
| 448 | |
---|
| 449 | /// Gives back the first of the Edges start from the given Node. |
---|
| 450 | /// |
---|
| 451 | void firstOut(Edge&, const Node&) const {} |
---|
| 452 | |
---|
| 453 | /// Gives back the next of the Edges start from the given Node. |
---|
| 454 | |
---|
| 455 | /// Gives back the next of the Edges start from the given Node. |
---|
| 456 | /// |
---|
| 457 | void nextOut(Edge&) const {} |
---|
| 458 | |
---|
| 459 | /// \brief The base node of the iterator. |
---|
| 460 | /// |
---|
| 461 | /// Gives back the base node of the iterator. |
---|
| 462 | Node baseNode(const InEdgeIt&) const { return INVALID; } |
---|
| 463 | |
---|
| 464 | /// \brief The running node of the iterator. |
---|
| 465 | /// |
---|
| 466 | /// Gives back the running node of the iterator. |
---|
| 467 | Node runningNode(const InEdgeIt&) const { return INVALID; } |
---|
| 468 | |
---|
| 469 | /// \brief The base node of the iterator. |
---|
| 470 | /// |
---|
| 471 | /// Gives back the base node of the iterator. |
---|
| 472 | Node baseNode(const OutEdgeIt&) const { return INVALID; } |
---|
| 473 | |
---|
| 474 | /// \brief The running node of the iterator. |
---|
| 475 | /// |
---|
| 476 | /// Gives back the running node of the iterator. |
---|
| 477 | Node runningNode(const OutEdgeIt&) const { return INVALID; } |
---|
[1136] | 478 | /// Read write map of the nodes to type \c T. |
---|
| 479 | |
---|
| 480 | /// \ingroup concept |
---|
| 481 | /// ReadWrite map of the nodes to type \c T. |
---|
| 482 | /// \sa Reference |
---|
| 483 | /// \warning Making maps that can handle bool type (NodeMap<bool>) |
---|
| 484 | /// needs some extra attention! |
---|
| 485 | template<class T> |
---|
| 486 | class NodeMap : public ReadWriteMap< Node, T > |
---|
| 487 | { |
---|
| 488 | public: |
---|
| 489 | |
---|
[1426] | 490 | ///\e |
---|
| 491 | NodeMap(const StaticGraph&) { } |
---|
| 492 | ///\e |
---|
| 493 | NodeMap(const StaticGraph&, T) { } |
---|
[1136] | 494 | |
---|
[1426] | 495 | ///Copy constructor |
---|
| 496 | NodeMap(const NodeMap& nm) : ReadWriteMap< Node, T >(nm) { } |
---|
| 497 | ///Assignment operator |
---|
| 498 | NodeMap& operator=(const NodeMap&) { return *this; } |
---|
| 499 | // \todo fix this concept |
---|
[1136] | 500 | }; |
---|
| 501 | |
---|
| 502 | /// Read write map of the edges to type \c T. |
---|
| 503 | |
---|
| 504 | /// \ingroup concept |
---|
| 505 | ///Reference map of the edges to type \c T. |
---|
| 506 | /// \sa Reference |
---|
| 507 | /// \warning Making maps that can handle bool type (EdgeMap<bool>) |
---|
| 508 | /// needs some extra attention! |
---|
| 509 | template<class T> |
---|
| 510 | class EdgeMap : public ReadWriteMap<Edge,T> |
---|
| 511 | { |
---|
| 512 | public: |
---|
| 513 | |
---|
[1426] | 514 | ///\e |
---|
| 515 | EdgeMap(const StaticGraph&) { } |
---|
| 516 | ///\e |
---|
| 517 | EdgeMap(const StaticGraph&, T) { } |
---|
| 518 | ///Copy constructor |
---|
| 519 | EdgeMap(const EdgeMap& em) : ReadWriteMap<Edge,T>(em) { } |
---|
| 520 | ///Assignment operator |
---|
| 521 | EdgeMap& operator=(const EdgeMap&) { return *this; } |
---|
| 522 | // \todo fix this concept |
---|
[1136] | 523 | }; |
---|
| 524 | |
---|
| 525 | template <typename _Graph> |
---|
| 526 | struct Constraints : public _StaticGraph::Constraints<_Graph> {}; |
---|
| 527 | |
---|
| 528 | }; |
---|
| 529 | |
---|
| 530 | /// An empty non-static graph class. |
---|
| 531 | |
---|
[1426] | 532 | /// This class provides everything that \ref StaticGraph does. |
---|
| 533 | /// Additionally it enables building graphs from scratch. |
---|
[1136] | 534 | class ExtendableGraph : public StaticGraph |
---|
| 535 | { |
---|
| 536 | public: |
---|
| 537 | /// Defalult constructor. |
---|
| 538 | |
---|
| 539 | /// Defalult constructor. |
---|
| 540 | /// |
---|
| 541 | ExtendableGraph() { } |
---|
| 542 | ///Add a new node to the graph. |
---|
| 543 | |
---|
| 544 | /// \return the new node. |
---|
| 545 | /// |
---|
| 546 | Node addNode() { return INVALID; } |
---|
| 547 | ///Add a new edge to the graph. |
---|
| 548 | |
---|
| 549 | ///Add a new edge to the graph with source node \c s |
---|
| 550 | ///and target node \c t. |
---|
| 551 | ///\return the new edge. |
---|
[1367] | 552 | Edge addEdge(Node, Node) { return INVALID; } |
---|
[1136] | 553 | |
---|
| 554 | /// Resets the graph. |
---|
| 555 | |
---|
| 556 | /// This function deletes all edges and nodes of the graph. |
---|
| 557 | /// It also frees the memory allocated to store them. |
---|
| 558 | /// \todo It might belong to \ref ErasableGraph. |
---|
| 559 | void clear() { } |
---|
| 560 | |
---|
| 561 | template <typename _Graph> |
---|
| 562 | struct Constraints : public _ExtendableGraph::Constraints<_Graph> {}; |
---|
| 563 | |
---|
| 564 | }; |
---|
| 565 | |
---|
| 566 | /// An empty erasable graph class. |
---|
| 567 | |
---|
[1426] | 568 | /// This class is an extension of \ref ExtendableGraph. It makes it |
---|
[1136] | 569 | /// possible to erase edges or nodes. |
---|
| 570 | class ErasableGraph : public ExtendableGraph |
---|
| 571 | { |
---|
| 572 | public: |
---|
| 573 | /// Defalult constructor. |
---|
| 574 | |
---|
| 575 | /// Defalult constructor. |
---|
| 576 | /// |
---|
| 577 | ErasableGraph() { } |
---|
| 578 | /// Deletes a node. |
---|
| 579 | |
---|
| 580 | /// Deletes node \c n node. |
---|
| 581 | /// |
---|
[1367] | 582 | void erase(Node) { } |
---|
[1136] | 583 | /// Deletes an edge. |
---|
| 584 | |
---|
| 585 | /// Deletes edge \c e edge. |
---|
| 586 | /// |
---|
[1367] | 587 | void erase(Edge) { } |
---|
[1136] | 588 | |
---|
| 589 | template <typename _Graph> |
---|
| 590 | struct Constraints : public _ErasableGraph::Constraints<_Graph> {}; |
---|
| 591 | |
---|
| 592 | }; |
---|
| 593 | |
---|
| 594 | |
---|
| 595 | /************* New GraphBase stuff **************/ |
---|
| 596 | |
---|
| 597 | |
---|
| 598 | // /// A minimal GraphBase concept |
---|
| 599 | |
---|
| 600 | // /// This class describes a minimal concept which can be extended to a |
---|
| 601 | // /// full-featured graph with \ref GraphFactory. |
---|
| 602 | // class GraphBase { |
---|
| 603 | // public: |
---|
| 604 | |
---|
| 605 | // GraphBase() {} |
---|
| 606 | |
---|
| 607 | // /// \bug Should we demand that Node and Edge be subclasses of the |
---|
| 608 | // /// Graph class??? |
---|
| 609 | |
---|
| 610 | // typedef GraphItem<'n'> Node; |
---|
| 611 | // typedef GraphItem<'e'> Edge; |
---|
| 612 | |
---|
| 613 | // // class Node : public BaseGraphItem<'n'> {}; |
---|
| 614 | // // class Edge : public BaseGraphItem<'e'> {}; |
---|
| 615 | |
---|
| 616 | // // Graph operation |
---|
| 617 | // void firstNode(Node &n) const { } |
---|
| 618 | // void firstEdge(Edge &e) const { } |
---|
| 619 | |
---|
| 620 | // void firstOutEdge(Edge &e, Node) const { } |
---|
| 621 | // void firstInEdge(Edge &e, Node) const { } |
---|
| 622 | |
---|
| 623 | // void nextNode(Node &n) const { } |
---|
| 624 | // void nextEdge(Edge &e) const { } |
---|
| 625 | |
---|
| 626 | |
---|
| 627 | // // Question: isn't it reasonable if this methods have a Node |
---|
| 628 | // // parameter? Like this: |
---|
| 629 | // // Edge& nextOut(Edge &e, Node) const { return e; } |
---|
| 630 | // void nextOutEdge(Edge &e) const { } |
---|
| 631 | // void nextInEdge(Edge &e) const { } |
---|
| 632 | |
---|
| 633 | // Node target(Edge) const { return Node(); } |
---|
| 634 | // Node source(Edge) const { return Node(); } |
---|
| 635 | |
---|
| 636 | |
---|
| 637 | // // Do we need id, nodeNum, edgeNum and co. in this basic graphbase |
---|
| 638 | // // concept? |
---|
| 639 | |
---|
| 640 | |
---|
| 641 | // // Maps. |
---|
| 642 | // // |
---|
| 643 | // // We need a special slimer concept which does not provide maps (it |
---|
| 644 | // // wouldn't be strictly slimer, cause for map-factory id() & friends |
---|
| 645 | // // a required...) |
---|
| 646 | |
---|
| 647 | // template<typename T> |
---|
| 648 | // class NodeMap : public GraphMap<GraphBase, Node, T> {}; |
---|
| 649 | |
---|
| 650 | // template<typename T> |
---|
| 651 | // class EdgeMap : public GraphMap<GraphBase, Node, T> {}; |
---|
| 652 | // }; |
---|
| 653 | |
---|
[959] | 654 | // @} |
---|
| 655 | } //namespace concept |
---|
| 656 | } //namespace lemon |
---|
| 657 | |
---|
| 658 | |
---|
| 659 | |
---|
| 660 | #endif // LEMON_CONCEPT_GRAPH_H |
---|