1 | /* -*- C++ -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library |
---|
4 | * |
---|
5 | * Copyright (C) 2003-2006 |
---|
6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
8 | * |
---|
9 | * Permission to use, modify and distribute this software is granted |
---|
10 | * provided that this copyright notice appears in all copies. For |
---|
11 | * precise terms see the accompanying LICENSE file. |
---|
12 | * |
---|
13 | * This software is provided "AS IS" with no warranty of any kind, |
---|
14 | * express or implied, and with no claim as to its suitability for any |
---|
15 | * purpose. |
---|
16 | * |
---|
17 | */ |
---|
18 | |
---|
19 | #ifndef LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
---|
20 | #define LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
---|
21 | |
---|
22 | #include <lemon/bits/invalid.h> |
---|
23 | #include <lemon/error.h> |
---|
24 | |
---|
25 | #include <lemon/bits/default_map.h> |
---|
26 | |
---|
27 | |
---|
28 | ///\ingroup graphbits |
---|
29 | ///\file |
---|
30 | ///\brief Extenders for the graph adaptor types |
---|
31 | namespace lemon { |
---|
32 | |
---|
33 | /// \ingroup graphbits |
---|
34 | /// |
---|
35 | /// \brief Extender for the GraphAdaptors |
---|
36 | template <typename _Graph> |
---|
37 | class GraphAdaptorExtender : public _Graph { |
---|
38 | public: |
---|
39 | |
---|
40 | typedef _Graph Parent; |
---|
41 | typedef _Graph Graph; |
---|
42 | typedef GraphAdaptorExtender Adaptor; |
---|
43 | |
---|
44 | // Base extensions |
---|
45 | |
---|
46 | typedef typename Parent::Node Node; |
---|
47 | typedef typename Parent::Edge Edge; |
---|
48 | |
---|
49 | int maxId(Node) const { |
---|
50 | return Parent::maxNodeId(); |
---|
51 | } |
---|
52 | |
---|
53 | int maxId(Edge) const { |
---|
54 | return Parent::maxEdgeId(); |
---|
55 | } |
---|
56 | |
---|
57 | Node fromId(int id, Node) const { |
---|
58 | return Parent::nodeFromId(id); |
---|
59 | } |
---|
60 | |
---|
61 | Edge fromId(int id, Edge) const { |
---|
62 | return Parent::edgeFromId(id); |
---|
63 | } |
---|
64 | |
---|
65 | Node oppositeNode(const Node &n, const Edge &e) const { |
---|
66 | if (n == Parent::source(e)) |
---|
67 | return Parent::target(e); |
---|
68 | else if(n==Parent::target(e)) |
---|
69 | return Parent::source(e); |
---|
70 | else |
---|
71 | return INVALID; |
---|
72 | } |
---|
73 | |
---|
74 | class NodeIt : public Node { |
---|
75 | const Adaptor* graph; |
---|
76 | public: |
---|
77 | |
---|
78 | NodeIt() {} |
---|
79 | |
---|
80 | NodeIt(Invalid i) : Node(i) { } |
---|
81 | |
---|
82 | explicit NodeIt(const Adaptor& _graph) : graph(&_graph) { |
---|
83 | _graph.first(static_cast<Node&>(*this)); |
---|
84 | } |
---|
85 | |
---|
86 | NodeIt(const Adaptor& _graph, const Node& node) |
---|
87 | : Node(node), graph(&_graph) {} |
---|
88 | |
---|
89 | NodeIt& operator++() { |
---|
90 | graph->next(*this); |
---|
91 | return *this; |
---|
92 | } |
---|
93 | |
---|
94 | }; |
---|
95 | |
---|
96 | |
---|
97 | class EdgeIt : public Edge { |
---|
98 | const Adaptor* graph; |
---|
99 | public: |
---|
100 | |
---|
101 | EdgeIt() { } |
---|
102 | |
---|
103 | EdgeIt(Invalid i) : Edge(i) { } |
---|
104 | |
---|
105 | explicit EdgeIt(const Adaptor& _graph) : graph(&_graph) { |
---|
106 | _graph.first(static_cast<Edge&>(*this)); |
---|
107 | } |
---|
108 | |
---|
109 | EdgeIt(const Adaptor& _graph, const Edge& e) : |
---|
110 | Edge(e), graph(&_graph) { } |
---|
111 | |
---|
112 | EdgeIt& operator++() { |
---|
113 | graph->next(*this); |
---|
114 | return *this; |
---|
115 | } |
---|
116 | |
---|
117 | }; |
---|
118 | |
---|
119 | |
---|
120 | class OutEdgeIt : public Edge { |
---|
121 | const Adaptor* graph; |
---|
122 | public: |
---|
123 | |
---|
124 | OutEdgeIt() { } |
---|
125 | |
---|
126 | OutEdgeIt(Invalid i) : Edge(i) { } |
---|
127 | |
---|
128 | OutEdgeIt(const Adaptor& _graph, const Node& node) |
---|
129 | : graph(&_graph) { |
---|
130 | _graph.firstOut(*this, node); |
---|
131 | } |
---|
132 | |
---|
133 | OutEdgeIt(const Adaptor& _graph, const Edge& edge) |
---|
134 | : Edge(edge), graph(&_graph) {} |
---|
135 | |
---|
136 | OutEdgeIt& operator++() { |
---|
137 | graph->nextOut(*this); |
---|
138 | return *this; |
---|
139 | } |
---|
140 | |
---|
141 | }; |
---|
142 | |
---|
143 | |
---|
144 | class InEdgeIt : public Edge { |
---|
145 | const Adaptor* graph; |
---|
146 | public: |
---|
147 | |
---|
148 | InEdgeIt() { } |
---|
149 | |
---|
150 | InEdgeIt(Invalid i) : Edge(i) { } |
---|
151 | |
---|
152 | InEdgeIt(const Adaptor& _graph, const Node& node) |
---|
153 | : graph(&_graph) { |
---|
154 | _graph.firstIn(*this, node); |
---|
155 | } |
---|
156 | |
---|
157 | InEdgeIt(const Adaptor& _graph, const Edge& edge) : |
---|
158 | Edge(edge), graph(&_graph) {} |
---|
159 | |
---|
160 | InEdgeIt& operator++() { |
---|
161 | graph->nextIn(*this); |
---|
162 | return *this; |
---|
163 | } |
---|
164 | |
---|
165 | }; |
---|
166 | |
---|
167 | /// \brief Base node of the iterator |
---|
168 | /// |
---|
169 | /// Returns the base node (ie. the source in this case) of the iterator |
---|
170 | Node baseNode(const OutEdgeIt &e) const { |
---|
171 | return Parent::source(e); |
---|
172 | } |
---|
173 | /// \brief Running node of the iterator |
---|
174 | /// |
---|
175 | /// Returns the running node (ie. the target in this case) of the |
---|
176 | /// iterator |
---|
177 | Node runningNode(const OutEdgeIt &e) const { |
---|
178 | return Parent::target(e); |
---|
179 | } |
---|
180 | |
---|
181 | /// \brief Base node of the iterator |
---|
182 | /// |
---|
183 | /// Returns the base node (ie. the target in this case) of the iterator |
---|
184 | Node baseNode(const InEdgeIt &e) const { |
---|
185 | return Parent::target(e); |
---|
186 | } |
---|
187 | /// \brief Running node of the iterator |
---|
188 | /// |
---|
189 | /// Returns the running node (ie. the source in this case) of the |
---|
190 | /// iterator |
---|
191 | Node runningNode(const InEdgeIt &e) const { |
---|
192 | return Parent::source(e); |
---|
193 | } |
---|
194 | |
---|
195 | }; |
---|
196 | |
---|
197 | |
---|
198 | /// \ingroup graphbits |
---|
199 | /// |
---|
200 | /// \brief Extender for the UGraphAdaptors |
---|
201 | template <typename _UGraph> |
---|
202 | class UGraphAdaptorExtender : public _UGraph { |
---|
203 | public: |
---|
204 | |
---|
205 | typedef _UGraph Parent; |
---|
206 | typedef _UGraph UGraph; |
---|
207 | typedef UGraphAdaptorExtender Adaptor; |
---|
208 | |
---|
209 | typedef typename Parent::Node Node; |
---|
210 | typedef typename Parent::Edge Edge; |
---|
211 | typedef typename Parent::UEdge UEdge; |
---|
212 | |
---|
213 | // UGraph extension |
---|
214 | |
---|
215 | int maxId(Node) const { |
---|
216 | return Parent::maxNodeId(); |
---|
217 | } |
---|
218 | |
---|
219 | int maxId(Edge) const { |
---|
220 | return Parent::maxEdgeId(); |
---|
221 | } |
---|
222 | |
---|
223 | int maxId(UEdge) const { |
---|
224 | return Parent::maxUEdgeId(); |
---|
225 | } |
---|
226 | |
---|
227 | Node fromId(int id, Node) const { |
---|
228 | return Parent::nodeFromId(id); |
---|
229 | } |
---|
230 | |
---|
231 | Edge fromId(int id, Edge) const { |
---|
232 | return Parent::edgeFromId(id); |
---|
233 | } |
---|
234 | |
---|
235 | UEdge fromId(int id, UEdge) const { |
---|
236 | return Parent::uEdgeFromId(id); |
---|
237 | } |
---|
238 | |
---|
239 | Node oppositeNode(const Node &n, const UEdge &e) const { |
---|
240 | if( n == Parent::source(e)) |
---|
241 | return Parent::target(e); |
---|
242 | else if( n == Parent::target(e)) |
---|
243 | return Parent::source(e); |
---|
244 | else |
---|
245 | return INVALID; |
---|
246 | } |
---|
247 | |
---|
248 | Edge oppositeEdge(const Edge &e) const { |
---|
249 | return Parent::direct(e, !Parent::direction(e)); |
---|
250 | } |
---|
251 | |
---|
252 | using Parent::direct; |
---|
253 | Edge direct(const UEdge &ue, const Node &s) const { |
---|
254 | return Parent::direct(ue, Parent::source(ue) == s); |
---|
255 | } |
---|
256 | |
---|
257 | |
---|
258 | class NodeIt : public Node { |
---|
259 | const Adaptor* graph; |
---|
260 | public: |
---|
261 | |
---|
262 | NodeIt() {} |
---|
263 | |
---|
264 | NodeIt(Invalid i) : Node(i) { } |
---|
265 | |
---|
266 | explicit NodeIt(const Adaptor& _graph) : graph(&_graph) { |
---|
267 | _graph.first(static_cast<Node&>(*this)); |
---|
268 | } |
---|
269 | |
---|
270 | NodeIt(const Adaptor& _graph, const Node& node) |
---|
271 | : Node(node), graph(&_graph) {} |
---|
272 | |
---|
273 | NodeIt& operator++() { |
---|
274 | graph->next(*this); |
---|
275 | return *this; |
---|
276 | } |
---|
277 | |
---|
278 | }; |
---|
279 | |
---|
280 | |
---|
281 | class EdgeIt : public Edge { |
---|
282 | const Adaptor* graph; |
---|
283 | public: |
---|
284 | |
---|
285 | EdgeIt() { } |
---|
286 | |
---|
287 | EdgeIt(Invalid i) : Edge(i) { } |
---|
288 | |
---|
289 | explicit EdgeIt(const Adaptor& _graph) : graph(&_graph) { |
---|
290 | _graph.first(static_cast<Edge&>(*this)); |
---|
291 | } |
---|
292 | |
---|
293 | EdgeIt(const Adaptor& _graph, const Edge& e) : |
---|
294 | Edge(e), graph(&_graph) { } |
---|
295 | |
---|
296 | EdgeIt& operator++() { |
---|
297 | graph->next(*this); |
---|
298 | return *this; |
---|
299 | } |
---|
300 | |
---|
301 | }; |
---|
302 | |
---|
303 | |
---|
304 | class OutEdgeIt : public Edge { |
---|
305 | const Adaptor* graph; |
---|
306 | public: |
---|
307 | |
---|
308 | OutEdgeIt() { } |
---|
309 | |
---|
310 | OutEdgeIt(Invalid i) : Edge(i) { } |
---|
311 | |
---|
312 | OutEdgeIt(const Adaptor& _graph, const Node& node) |
---|
313 | : graph(&_graph) { |
---|
314 | _graph.firstOut(*this, node); |
---|
315 | } |
---|
316 | |
---|
317 | OutEdgeIt(const Adaptor& _graph, const Edge& edge) |
---|
318 | : Edge(edge), graph(&_graph) {} |
---|
319 | |
---|
320 | OutEdgeIt& operator++() { |
---|
321 | graph->nextOut(*this); |
---|
322 | return *this; |
---|
323 | } |
---|
324 | |
---|
325 | }; |
---|
326 | |
---|
327 | |
---|
328 | class InEdgeIt : public Edge { |
---|
329 | const Adaptor* graph; |
---|
330 | public: |
---|
331 | |
---|
332 | InEdgeIt() { } |
---|
333 | |
---|
334 | InEdgeIt(Invalid i) : Edge(i) { } |
---|
335 | |
---|
336 | InEdgeIt(const Adaptor& _graph, const Node& node) |
---|
337 | : graph(&_graph) { |
---|
338 | _graph.firstIn(*this, node); |
---|
339 | } |
---|
340 | |
---|
341 | InEdgeIt(const Adaptor& _graph, const Edge& edge) : |
---|
342 | Edge(edge), graph(&_graph) {} |
---|
343 | |
---|
344 | InEdgeIt& operator++() { |
---|
345 | graph->nextIn(*this); |
---|
346 | return *this; |
---|
347 | } |
---|
348 | |
---|
349 | }; |
---|
350 | |
---|
351 | class UEdgeIt : public Parent::UEdge { |
---|
352 | const Adaptor* graph; |
---|
353 | public: |
---|
354 | |
---|
355 | UEdgeIt() { } |
---|
356 | |
---|
357 | UEdgeIt(Invalid i) : UEdge(i) { } |
---|
358 | |
---|
359 | explicit UEdgeIt(const Adaptor& _graph) : graph(&_graph) { |
---|
360 | _graph.first(static_cast<UEdge&>(*this)); |
---|
361 | } |
---|
362 | |
---|
363 | UEdgeIt(const Adaptor& _graph, const UEdge& e) : |
---|
364 | UEdge(e), graph(&_graph) { } |
---|
365 | |
---|
366 | UEdgeIt& operator++() { |
---|
367 | graph->next(*this); |
---|
368 | return *this; |
---|
369 | } |
---|
370 | |
---|
371 | }; |
---|
372 | |
---|
373 | class IncEdgeIt : public Parent::UEdge { |
---|
374 | friend class UGraphAdaptorExtender; |
---|
375 | const Adaptor* graph; |
---|
376 | bool direction; |
---|
377 | public: |
---|
378 | |
---|
379 | IncEdgeIt() { } |
---|
380 | |
---|
381 | IncEdgeIt(Invalid i) : UEdge(i), direction(false) { } |
---|
382 | |
---|
383 | IncEdgeIt(const Adaptor& _graph, const Node &n) : graph(&_graph) { |
---|
384 | _graph.firstInc(static_cast<UEdge&>(*this), direction, n); |
---|
385 | } |
---|
386 | |
---|
387 | IncEdgeIt(const Adaptor& _graph, const UEdge &ue, const Node &n) |
---|
388 | : graph(&_graph), UEdge(ue) { |
---|
389 | direction = (_graph.source(ue) == n); |
---|
390 | } |
---|
391 | |
---|
392 | IncEdgeIt& operator++() { |
---|
393 | graph->nextInc(*this, direction); |
---|
394 | return *this; |
---|
395 | } |
---|
396 | }; |
---|
397 | |
---|
398 | /// \brief Base node of the iterator |
---|
399 | /// |
---|
400 | /// Returns the base node (ie. the source in this case) of the iterator |
---|
401 | Node baseNode(const OutEdgeIt &e) const { |
---|
402 | return Parent::source((Edge)e); |
---|
403 | } |
---|
404 | /// \brief Running node of the iterator |
---|
405 | /// |
---|
406 | /// Returns the running node (ie. the target in this case) of the |
---|
407 | /// iterator |
---|
408 | Node runningNode(const OutEdgeIt &e) const { |
---|
409 | return Parent::target((Edge)e); |
---|
410 | } |
---|
411 | |
---|
412 | /// \brief Base node of the iterator |
---|
413 | /// |
---|
414 | /// Returns the base node (ie. the target in this case) of the iterator |
---|
415 | Node baseNode(const InEdgeIt &e) const { |
---|
416 | return Parent::target((Edge)e); |
---|
417 | } |
---|
418 | /// \brief Running node of the iterator |
---|
419 | /// |
---|
420 | /// Returns the running node (ie. the source in this case) of the |
---|
421 | /// iterator |
---|
422 | Node runningNode(const InEdgeIt &e) const { |
---|
423 | return Parent::source((Edge)e); |
---|
424 | } |
---|
425 | |
---|
426 | /// Base node of the iterator |
---|
427 | /// |
---|
428 | /// Returns the base node of the iterator |
---|
429 | Node baseNode(const IncEdgeIt &e) const { |
---|
430 | return e.direction ? source(e) : target(e); |
---|
431 | } |
---|
432 | /// Running node of the iterator |
---|
433 | /// |
---|
434 | /// Returns the running node of the iterator |
---|
435 | Node runningNode(const IncEdgeIt &e) const { |
---|
436 | return e.direction ? target(e) : source(e); |
---|
437 | } |
---|
438 | |
---|
439 | }; |
---|
440 | |
---|
441 | /// \ingroup graphbits |
---|
442 | /// |
---|
443 | /// \brief Extender for the BpUGraphAdaptors |
---|
444 | template <typename Base> |
---|
445 | class BpUGraphAdaptorExtender : public Base { |
---|
446 | public: |
---|
447 | typedef Base Parent; |
---|
448 | typedef BpUGraphAdaptorExtender Graph; |
---|
449 | |
---|
450 | typedef typename Parent::Node Node; |
---|
451 | typedef typename Parent::BNode BNode; |
---|
452 | typedef typename Parent::ANode ANode; |
---|
453 | typedef typename Parent::Edge Edge; |
---|
454 | typedef typename Parent::UEdge UEdge; |
---|
455 | |
---|
456 | |
---|
457 | int maxId(Node) const { |
---|
458 | return Parent::maxNodeId(); |
---|
459 | } |
---|
460 | int maxId(BNode) const { |
---|
461 | return Parent::maxBNodeId(); |
---|
462 | } |
---|
463 | int maxId(ANode) const { |
---|
464 | return Parent::maxANodeId(); |
---|
465 | } |
---|
466 | int maxId(Edge) const { |
---|
467 | return Parent::maxEdgeId(); |
---|
468 | } |
---|
469 | int maxId(UEdge) const { |
---|
470 | return Parent::maxUEdgeId(); |
---|
471 | } |
---|
472 | |
---|
473 | |
---|
474 | Node fromId(int id, Node) const { |
---|
475 | return Parent::nodeFromId(id); |
---|
476 | } |
---|
477 | ANode fromId(int id, ANode) const { |
---|
478 | return Parent::nodeFromANodeId(id); |
---|
479 | } |
---|
480 | BNode fromId(int id, BNode) const { |
---|
481 | return Parent::nodeFromBNodeId(id); |
---|
482 | } |
---|
483 | Edge fromId(int id, Edge) const { |
---|
484 | return Parent::edgeFromId(id); |
---|
485 | } |
---|
486 | UEdge fromId(int id, UEdge) const { |
---|
487 | return Parent::uEdgeFromId(id); |
---|
488 | } |
---|
489 | |
---|
490 | class NodeIt : public Node { |
---|
491 | const Graph* graph; |
---|
492 | public: |
---|
493 | |
---|
494 | NodeIt() { } |
---|
495 | |
---|
496 | NodeIt(Invalid i) : Node(INVALID) { } |
---|
497 | |
---|
498 | explicit NodeIt(const Graph& _graph) : graph(&_graph) { |
---|
499 | graph->first(static_cast<Node&>(*this)); |
---|
500 | } |
---|
501 | |
---|
502 | NodeIt(const Graph& _graph, const Node& node) |
---|
503 | : Node(node), graph(&_graph) { } |
---|
504 | |
---|
505 | NodeIt& operator++() { |
---|
506 | graph->next(*this); |
---|
507 | return *this; |
---|
508 | } |
---|
509 | |
---|
510 | }; |
---|
511 | |
---|
512 | class ANodeIt : public Node { |
---|
513 | friend class BpUGraphAdaptorExtender; |
---|
514 | const Graph* graph; |
---|
515 | public: |
---|
516 | |
---|
517 | ANodeIt() { } |
---|
518 | |
---|
519 | ANodeIt(Invalid i) : Node(INVALID) { } |
---|
520 | |
---|
521 | explicit ANodeIt(const Graph& _graph) : graph(&_graph) { |
---|
522 | graph->firstANode(static_cast<Node&>(*this)); |
---|
523 | } |
---|
524 | |
---|
525 | ANodeIt(const Graph& _graph, const Node& node) |
---|
526 | : Node(node), graph(&_graph) {} |
---|
527 | |
---|
528 | ANodeIt& operator++() { |
---|
529 | graph->nextANode(*this); |
---|
530 | return *this; |
---|
531 | } |
---|
532 | }; |
---|
533 | |
---|
534 | class BNodeIt : public Node { |
---|
535 | friend class BpUGraphAdaptorExtender; |
---|
536 | const Graph* graph; |
---|
537 | public: |
---|
538 | |
---|
539 | BNodeIt() { } |
---|
540 | |
---|
541 | BNodeIt(Invalid i) : Node(INVALID) { } |
---|
542 | |
---|
543 | explicit BNodeIt(const Graph& _graph) : graph(&_graph) { |
---|
544 | graph->firstBNode(static_cast<Node&>(*this)); |
---|
545 | } |
---|
546 | |
---|
547 | BNodeIt(const Graph& _graph, const Node& node) |
---|
548 | : Node(node), graph(&_graph) {} |
---|
549 | |
---|
550 | BNodeIt& operator++() { |
---|
551 | graph->nextBNode(*this); |
---|
552 | return *this; |
---|
553 | } |
---|
554 | }; |
---|
555 | |
---|
556 | class EdgeIt : public Edge { |
---|
557 | friend class BpUGraphAdaptorExtender; |
---|
558 | const Graph* graph; |
---|
559 | public: |
---|
560 | |
---|
561 | EdgeIt() { } |
---|
562 | |
---|
563 | EdgeIt(Invalid i) : Edge(INVALID) { } |
---|
564 | |
---|
565 | explicit EdgeIt(const Graph& _graph) : graph(&_graph) { |
---|
566 | graph->first(static_cast<Edge&>(*this)); |
---|
567 | } |
---|
568 | |
---|
569 | EdgeIt(const Graph& _graph, const Edge& edge) |
---|
570 | : Edge(edge), graph(&_graph) { } |
---|
571 | |
---|
572 | EdgeIt& operator++() { |
---|
573 | graph->next(*this); |
---|
574 | return *this; |
---|
575 | } |
---|
576 | |
---|
577 | }; |
---|
578 | |
---|
579 | class UEdgeIt : public UEdge { |
---|
580 | friend class BpUGraphAdaptorExtender; |
---|
581 | const Graph* graph; |
---|
582 | public: |
---|
583 | |
---|
584 | UEdgeIt() { } |
---|
585 | |
---|
586 | UEdgeIt(Invalid i) : UEdge(INVALID) { } |
---|
587 | |
---|
588 | explicit UEdgeIt(const Graph& _graph) : graph(&_graph) { |
---|
589 | graph->first(static_cast<UEdge&>(*this)); |
---|
590 | } |
---|
591 | |
---|
592 | UEdgeIt(const Graph& _graph, const UEdge& edge) |
---|
593 | : UEdge(edge), graph(&_graph) { } |
---|
594 | |
---|
595 | UEdgeIt& operator++() { |
---|
596 | graph->next(*this); |
---|
597 | return *this; |
---|
598 | } |
---|
599 | }; |
---|
600 | |
---|
601 | class OutEdgeIt : public Edge { |
---|
602 | friend class BpUGraphAdaptorExtender; |
---|
603 | const Graph* graph; |
---|
604 | public: |
---|
605 | |
---|
606 | OutEdgeIt() { } |
---|
607 | |
---|
608 | OutEdgeIt(Invalid i) : Edge(i) { } |
---|
609 | |
---|
610 | OutEdgeIt(const Graph& _graph, const Node& node) |
---|
611 | : graph(&_graph) { |
---|
612 | graph->firstOut(*this, node); |
---|
613 | } |
---|
614 | |
---|
615 | OutEdgeIt(const Graph& _graph, const Edge& edge) |
---|
616 | : Edge(edge), graph(&_graph) {} |
---|
617 | |
---|
618 | OutEdgeIt& operator++() { |
---|
619 | graph->nextOut(*this); |
---|
620 | return *this; |
---|
621 | } |
---|
622 | |
---|
623 | }; |
---|
624 | |
---|
625 | |
---|
626 | class InEdgeIt : public Edge { |
---|
627 | friend class BpUGraphAdaptorExtender; |
---|
628 | const Graph* graph; |
---|
629 | public: |
---|
630 | |
---|
631 | InEdgeIt() { } |
---|
632 | |
---|
633 | InEdgeIt(Invalid i) : Edge(i) { } |
---|
634 | |
---|
635 | InEdgeIt(const Graph& _graph, const Node& node) |
---|
636 | : graph(&_graph) { |
---|
637 | graph->firstIn(*this, node); |
---|
638 | } |
---|
639 | |
---|
640 | InEdgeIt(const Graph& _graph, const Edge& edge) : |
---|
641 | Edge(edge), graph(&_graph) {} |
---|
642 | |
---|
643 | InEdgeIt& operator++() { |
---|
644 | graph->nextIn(*this); |
---|
645 | return *this; |
---|
646 | } |
---|
647 | |
---|
648 | }; |
---|
649 | |
---|
650 | /// \brief Base node of the iterator |
---|
651 | /// |
---|
652 | /// Returns the base node (ie. the source in this case) of the iterator |
---|
653 | Node baseNode(const OutEdgeIt &e) const { |
---|
654 | return Parent::source((Edge&)e); |
---|
655 | } |
---|
656 | /// \brief Running node of the iterator |
---|
657 | /// |
---|
658 | /// Returns the running node (ie. the target in this case) of the |
---|
659 | /// iterator |
---|
660 | Node runningNode(const OutEdgeIt &e) const { |
---|
661 | return Parent::target((Edge&)e); |
---|
662 | } |
---|
663 | |
---|
664 | /// \brief Base node of the iterator |
---|
665 | /// |
---|
666 | /// Returns the base node (ie. the target in this case) of the iterator |
---|
667 | Node baseNode(const InEdgeIt &e) const { |
---|
668 | return Parent::target((Edge&)e); |
---|
669 | } |
---|
670 | /// \brief Running node of the iterator |
---|
671 | /// |
---|
672 | /// Returns the running node (ie. the source in this case) of the |
---|
673 | /// iterator |
---|
674 | Node runningNode(const InEdgeIt &e) const { |
---|
675 | return Parent::source((Edge&)e); |
---|
676 | } |
---|
677 | |
---|
678 | class IncEdgeIt : public Parent::UEdge { |
---|
679 | friend class BpUGraphAdaptorExtender; |
---|
680 | const Graph* graph; |
---|
681 | bool direction; |
---|
682 | public: |
---|
683 | |
---|
684 | IncEdgeIt() { } |
---|
685 | |
---|
686 | IncEdgeIt(Invalid i) : UEdge(i), direction(true) { } |
---|
687 | |
---|
688 | IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) { |
---|
689 | graph->firstInc(*this, direction, n); |
---|
690 | } |
---|
691 | |
---|
692 | IncEdgeIt(const Graph& _graph, const UEdge &ue, const Node &n) |
---|
693 | : graph(&_graph), UEdge(ue) { |
---|
694 | direction = (graph->source(ue) == n); |
---|
695 | } |
---|
696 | |
---|
697 | IncEdgeIt& operator++() { |
---|
698 | graph->nextInc(*this, direction); |
---|
699 | return *this; |
---|
700 | } |
---|
701 | }; |
---|
702 | |
---|
703 | |
---|
704 | /// Base node of the iterator |
---|
705 | /// |
---|
706 | /// Returns the base node of the iterator |
---|
707 | Node baseNode(const IncEdgeIt &e) const { |
---|
708 | return e.direction ? source(e) : target(e); |
---|
709 | } |
---|
710 | |
---|
711 | /// Running node of the iterator |
---|
712 | /// |
---|
713 | /// Returns the running node of the iterator |
---|
714 | Node runningNode(const IncEdgeIt &e) const { |
---|
715 | return e.direction ? target(e) : source(e); |
---|
716 | } |
---|
717 | |
---|
718 | Node oppositeNode(const Node &n, const UEdge &e) const { |
---|
719 | if( n == Parent::source(e)) |
---|
720 | return Parent::target(e); |
---|
721 | else if( n == Parent::target(e)) |
---|
722 | return Parent::source(e); |
---|
723 | else |
---|
724 | return INVALID; |
---|
725 | } |
---|
726 | |
---|
727 | Edge oppositeEdge(const Edge &e) const { |
---|
728 | return Parent::direct(e, !Parent::direction(e)); |
---|
729 | } |
---|
730 | |
---|
731 | using Parent::direct; |
---|
732 | Edge direct(const UEdge &ue, const Node &s) const { |
---|
733 | return Parent::direct(ue, Parent::source(ue) == s); |
---|
734 | } |
---|
735 | |
---|
736 | }; |
---|
737 | |
---|
738 | |
---|
739 | } |
---|
740 | |
---|
741 | |
---|
742 | #endif |
---|