1 | // -*- mode:C++ -*- |
---|
2 | |
---|
3 | #ifndef HUGO_SMART_GRAPH_H |
---|
4 | #define HUGO_SMART_GRAPH_H |
---|
5 | |
---|
6 | ///\ingroup graphs |
---|
7 | ///\file |
---|
8 | ///\brief SmartGraph and SymSmartGraph classes. |
---|
9 | |
---|
10 | #include <vector> |
---|
11 | #include <limits.h> |
---|
12 | |
---|
13 | #include <hugo/invalid.h> |
---|
14 | |
---|
15 | namespace hugo { |
---|
16 | |
---|
17 | /// \addtogroup graphs |
---|
18 | /// @{ |
---|
19 | class SymSmartGraph; |
---|
20 | |
---|
21 | ///A smart graph class. |
---|
22 | |
---|
23 | ///This is a simple and fast graph implementation. |
---|
24 | ///It is also quite memory efficient, but at the price |
---|
25 | ///that <b> it does not support node and edge deletion</b>. |
---|
26 | ///It conforms to the graph interface documented under |
---|
27 | ///the description of \ref GraphSkeleton. |
---|
28 | ///\sa \ref GraphSkeleton. |
---|
29 | /// |
---|
30 | ///\todo Some member functions could be \c static. |
---|
31 | ///\author Alpar Juttner |
---|
32 | class SmartGraph { |
---|
33 | |
---|
34 | struct NodeT |
---|
35 | { |
---|
36 | int first_in,first_out; |
---|
37 | NodeT() : first_in(-1), first_out(-1) {} |
---|
38 | }; |
---|
39 | struct EdgeT |
---|
40 | { |
---|
41 | int head, tail, next_in, next_out; |
---|
42 | //FIXME: is this necessary? |
---|
43 | EdgeT() : next_in(-1), next_out(-1) {} |
---|
44 | }; |
---|
45 | |
---|
46 | std::vector<NodeT> nodes; |
---|
47 | |
---|
48 | std::vector<EdgeT> edges; |
---|
49 | |
---|
50 | protected: |
---|
51 | |
---|
52 | template <typename Key> class DynMapBase |
---|
53 | { |
---|
54 | protected: |
---|
55 | const SmartGraph* G; |
---|
56 | public: |
---|
57 | virtual void add(const Key k) = 0; |
---|
58 | virtual void erase(const Key k) = 0; |
---|
59 | DynMapBase(const SmartGraph &_G) : G(&_G) {} |
---|
60 | virtual ~DynMapBase() {} |
---|
61 | friend class SmartGraph; |
---|
62 | }; |
---|
63 | |
---|
64 | public: |
---|
65 | template <typename T> class EdgeMap; |
---|
66 | template <typename T> class NodeMap; |
---|
67 | |
---|
68 | class Node; |
---|
69 | class Edge; |
---|
70 | |
---|
71 | // protected: |
---|
72 | // HELPME: |
---|
73 | protected: |
---|
74 | ///\bug It must be public because of SymEdgeMap. |
---|
75 | /// |
---|
76 | mutable std::vector<DynMapBase<Node> * > dyn_node_maps; |
---|
77 | ///\bug It must be public because of SymEdgeMap. |
---|
78 | /// |
---|
79 | mutable std::vector<DynMapBase<Edge> * > dyn_edge_maps; |
---|
80 | |
---|
81 | public: |
---|
82 | |
---|
83 | |
---|
84 | class NodeIt; |
---|
85 | class EdgeIt; |
---|
86 | class OutEdgeIt; |
---|
87 | class InEdgeIt; |
---|
88 | |
---|
89 | template <typename T> class NodeMap; |
---|
90 | template <typename T> class EdgeMap; |
---|
91 | |
---|
92 | public: |
---|
93 | |
---|
94 | SmartGraph() : nodes(), edges() { } |
---|
95 | SmartGraph(const SmartGraph &_g) : nodes(_g.nodes), edges(_g.edges) { } |
---|
96 | |
---|
97 | ~SmartGraph() |
---|
98 | { |
---|
99 | for(std::vector<DynMapBase<Node> * >::iterator i=dyn_node_maps.begin(); |
---|
100 | i!=dyn_node_maps.end(); ++i) (**i).G=NULL; |
---|
101 | for(std::vector<DynMapBase<Edge> * >::iterator i=dyn_edge_maps.begin(); |
---|
102 | i!=dyn_edge_maps.end(); ++i) (**i).G=NULL; |
---|
103 | } |
---|
104 | |
---|
105 | int nodeNum() const { return nodes.size(); } //FIXME: What is this? |
---|
106 | int edgeNum() const { return edges.size(); } //FIXME: What is this? |
---|
107 | |
---|
108 | ///\bug This function does something different than |
---|
109 | ///its name would suggests... |
---|
110 | int maxNodeId() const { return nodes.size(); } //FIXME: What is this? |
---|
111 | ///\bug This function does something different than |
---|
112 | ///its name would suggests... |
---|
113 | int maxEdgeId() const { return edges.size(); } //FIXME: What is this? |
---|
114 | |
---|
115 | Node tail(Edge e) const { return edges[e.n].tail; } |
---|
116 | Node head(Edge e) const { return edges[e.n].head; } |
---|
117 | |
---|
118 | Node aNode(OutEdgeIt e) const { return edges[e.n].tail; } |
---|
119 | Node aNode(InEdgeIt e) const { return edges[e.n].head; } |
---|
120 | |
---|
121 | Node bNode(OutEdgeIt e) const { return edges[e.n].head; } |
---|
122 | Node bNode(InEdgeIt e) const { return edges[e.n].tail; } |
---|
123 | |
---|
124 | NodeIt& first(NodeIt& v) const { |
---|
125 | v=NodeIt(*this); return v; } |
---|
126 | EdgeIt& first(EdgeIt& e) const { |
---|
127 | e=EdgeIt(*this); return e; } |
---|
128 | OutEdgeIt& first(OutEdgeIt& e, const Node v) const { |
---|
129 | e=OutEdgeIt(*this,v); return e; } |
---|
130 | InEdgeIt& first(InEdgeIt& e, const Node v) const { |
---|
131 | e=InEdgeIt(*this,v); return e; } |
---|
132 | |
---|
133 | // template< typename It > |
---|
134 | // It first() const { It e; first(e); return e; } |
---|
135 | |
---|
136 | // template< typename It > |
---|
137 | // It first(Node v) const { It e; first(e,v); return e; } |
---|
138 | |
---|
139 | bool valid(Edge e) const { return e.n!=-1; } |
---|
140 | bool valid(Node n) const { return n.n!=-1; } |
---|
141 | |
---|
142 | ///\deprecated Use |
---|
143 | ///\code |
---|
144 | /// e=INVALID; |
---|
145 | ///\endcode |
---|
146 | ///instead. |
---|
147 | void setInvalid(Edge &e) { e.n=-1; } |
---|
148 | ///\deprecated Use |
---|
149 | ///\code |
---|
150 | /// e=INVALID; |
---|
151 | ///\endcode |
---|
152 | ///instead. |
---|
153 | void setInvalid(Node &n) { n.n=-1; } |
---|
154 | |
---|
155 | template <typename It> It getNext(It it) const |
---|
156 | { It tmp(it); return next(tmp); } |
---|
157 | |
---|
158 | NodeIt& next(NodeIt& it) const { |
---|
159 | it.n=(it.n+2)%(nodes.size()+1)-1; |
---|
160 | return it; |
---|
161 | } |
---|
162 | OutEdgeIt& next(OutEdgeIt& it) const |
---|
163 | { it.n=edges[it.n].next_out; return it; } |
---|
164 | InEdgeIt& next(InEdgeIt& it) const |
---|
165 | { it.n=edges[it.n].next_in; return it; } |
---|
166 | EdgeIt& next(EdgeIt& it) const { --it.n; return it; } |
---|
167 | |
---|
168 | int id(Node v) const { return v.n; } |
---|
169 | int id(Edge e) const { return e.n; } |
---|
170 | |
---|
171 | Node addNode() { |
---|
172 | Node n; n.n=nodes.size(); |
---|
173 | nodes.push_back(NodeT()); //FIXME: Hmmm... |
---|
174 | |
---|
175 | for(std::vector<DynMapBase<Node> * >::iterator i=dyn_node_maps.begin(); |
---|
176 | i!=dyn_node_maps.end(); ++i) (**i).add(n); |
---|
177 | |
---|
178 | return n; |
---|
179 | } |
---|
180 | |
---|
181 | Edge addEdge(Node u, Node v) { |
---|
182 | Edge e; e.n=edges.size(); edges.push_back(EdgeT()); //FIXME: Hmmm... |
---|
183 | edges[e.n].tail=u.n; edges[e.n].head=v.n; |
---|
184 | edges[e.n].next_out=nodes[u.n].first_out; |
---|
185 | edges[e.n].next_in=nodes[v.n].first_in; |
---|
186 | nodes[u.n].first_out=nodes[v.n].first_in=e.n; |
---|
187 | |
---|
188 | for(std::vector<DynMapBase<Edge> * >::iterator i=dyn_edge_maps.begin(); |
---|
189 | i!=dyn_edge_maps.end(); ++i) (**i).add(e); |
---|
190 | |
---|
191 | return e; |
---|
192 | } |
---|
193 | |
---|
194 | void clear() {nodes.clear();edges.clear();} |
---|
195 | |
---|
196 | class Node { |
---|
197 | friend class SmartGraph; |
---|
198 | template <typename T> friend class NodeMap; |
---|
199 | |
---|
200 | friend class Edge; |
---|
201 | friend class OutEdgeIt; |
---|
202 | friend class InEdgeIt; |
---|
203 | friend class SymEdge; |
---|
204 | |
---|
205 | protected: |
---|
206 | int n; |
---|
207 | friend int SmartGraph::id(Node v) const; |
---|
208 | Node(int nn) {n=nn;} |
---|
209 | public: |
---|
210 | Node() {} |
---|
211 | Node (Invalid) { n=-1; } |
---|
212 | bool operator==(const Node i) const {return n==i.n;} |
---|
213 | bool operator!=(const Node i) const {return n!=i.n;} |
---|
214 | bool operator<(const Node i) const {return n<i.n;} |
---|
215 | }; |
---|
216 | |
---|
217 | class NodeIt : public Node { |
---|
218 | friend class SmartGraph; |
---|
219 | public: |
---|
220 | NodeIt() : Node() { } |
---|
221 | NodeIt(Invalid i) : Node(i) { } |
---|
222 | NodeIt(const SmartGraph& G) : Node(G.nodes.size()?0:-1) { } |
---|
223 | ///\todo Undocumented conversion Node -\> NodeIt. |
---|
224 | NodeIt(const SmartGraph& G, const Node &n) : Node(n) { } |
---|
225 | }; |
---|
226 | |
---|
227 | class Edge { |
---|
228 | friend class SmartGraph; |
---|
229 | template <typename T> friend class EdgeMap; |
---|
230 | |
---|
231 | //template <typename T> friend class SymSmartGraph::SymEdgeMap; |
---|
232 | //friend Edge SymSmartGraph::opposite(Edge) const; |
---|
233 | |
---|
234 | friend class Node; |
---|
235 | friend class NodeIt; |
---|
236 | protected: |
---|
237 | int n; |
---|
238 | friend int SmartGraph::id(Edge e) const; |
---|
239 | |
---|
240 | Edge(int nn) {n=nn;} |
---|
241 | public: |
---|
242 | Edge() { } |
---|
243 | Edge (Invalid) { n=-1; } |
---|
244 | bool operator==(const Edge i) const {return n==i.n;} |
---|
245 | bool operator!=(const Edge i) const {return n!=i.n;} |
---|
246 | bool operator<(const Edge i) const {return n<i.n;} |
---|
247 | ///\bug This is a workaround until somebody tells me how to |
---|
248 | ///make class \c SymSmartGraph::SymEdgeMap friend of Edge |
---|
249 | int &idref() {return n;} |
---|
250 | const int &idref() const {return n;} |
---|
251 | }; |
---|
252 | |
---|
253 | class EdgeIt : public Edge { |
---|
254 | friend class SmartGraph; |
---|
255 | public: |
---|
256 | EdgeIt(const SmartGraph& G) : Edge(G.edges.size()-1) { } |
---|
257 | EdgeIt (Invalid i) : Edge(i) { } |
---|
258 | EdgeIt() : Edge() { } |
---|
259 | ///\bug This is a workaround until somebody tells me how to |
---|
260 | ///make class \c SymSmartGraph::SymEdgeMap friend of Edge |
---|
261 | int &idref() {return n;} |
---|
262 | }; |
---|
263 | |
---|
264 | class OutEdgeIt : public Edge { |
---|
265 | friend class SmartGraph; |
---|
266 | public: |
---|
267 | OutEdgeIt() : Edge() { } |
---|
268 | OutEdgeIt (Invalid i) : Edge(i) { } |
---|
269 | |
---|
270 | OutEdgeIt(const SmartGraph& G,const Node v) |
---|
271 | : Edge(G.nodes[v.n].first_out) {} |
---|
272 | }; |
---|
273 | |
---|
274 | class InEdgeIt : public Edge { |
---|
275 | friend class SmartGraph; |
---|
276 | public: |
---|
277 | InEdgeIt() : Edge() { } |
---|
278 | InEdgeIt (Invalid i) : Edge(i) { } |
---|
279 | InEdgeIt(const SmartGraph& G,Node v) :Edge(G.nodes[v.n].first_in){} |
---|
280 | }; |
---|
281 | |
---|
282 | template <typename T> class NodeMap : public DynMapBase<Node> |
---|
283 | { |
---|
284 | std::vector<T> container; |
---|
285 | |
---|
286 | public: |
---|
287 | typedef T ValueType; |
---|
288 | typedef Node KeyType; |
---|
289 | |
---|
290 | NodeMap(const SmartGraph &_G) : |
---|
291 | DynMapBase<Node>(_G), container(_G.maxNodeId()) |
---|
292 | { |
---|
293 | G->dyn_node_maps.push_back(this); |
---|
294 | } |
---|
295 | NodeMap(const SmartGraph &_G,const T &t) : |
---|
296 | DynMapBase<Node>(_G), container(_G.maxNodeId(),t) |
---|
297 | { |
---|
298 | G->dyn_node_maps.push_back(this); |
---|
299 | } |
---|
300 | |
---|
301 | NodeMap(const NodeMap<T> &m) : |
---|
302 | DynMapBase<Node>(*m.G), container(m.container) |
---|
303 | { |
---|
304 | G->dyn_node_maps.push_back(this); |
---|
305 | } |
---|
306 | |
---|
307 | template<typename TT> friend class NodeMap; |
---|
308 | |
---|
309 | ///\todo It can copy between different types. |
---|
310 | ///\todo We could use 'copy' |
---|
311 | template<typename TT> NodeMap(const NodeMap<TT> &m) : |
---|
312 | DynMapBase<Node>(*m.G), container(m.container.size()) |
---|
313 | { |
---|
314 | G->dyn_node_maps.push_back(this); |
---|
315 | typename std::vector<TT>::const_iterator i; |
---|
316 | for(typename std::vector<TT>::const_iterator i=m.container.begin(); |
---|
317 | i!=m.container.end(); |
---|
318 | i++) |
---|
319 | container.push_back(*i); |
---|
320 | } |
---|
321 | ~NodeMap() |
---|
322 | { |
---|
323 | if(G) { |
---|
324 | std::vector<DynMapBase<Node>* >::iterator i; |
---|
325 | for(i=G->dyn_node_maps.begin(); |
---|
326 | i!=G->dyn_node_maps.end() && *i!=this; ++i) ; |
---|
327 | //if(*i==this) G->dyn_node_maps.erase(i); //FIXME: Way too slow... |
---|
328 | //A better way to do that: (Is this really important?) |
---|
329 | if(*i==this) { |
---|
330 | *i=G->dyn_node_maps.back(); |
---|
331 | G->dyn_node_maps.pop_back(); |
---|
332 | } |
---|
333 | } |
---|
334 | } |
---|
335 | |
---|
336 | void add(const Node k) |
---|
337 | { |
---|
338 | if(k.n>=int(container.size())) container.resize(k.n+1); |
---|
339 | } |
---|
340 | |
---|
341 | void erase(const Node) { } |
---|
342 | |
---|
343 | void set(Node n, T a) { container[n.n]=a; } |
---|
344 | //'T& operator[](Node n)' would be wrong here |
---|
345 | typename std::vector<T>::reference |
---|
346 | operator[](Node n) { return container[n.n]; } |
---|
347 | //'const T& operator[](Node n)' would be wrong here |
---|
348 | typename std::vector<T>::const_reference |
---|
349 | operator[](Node n) const { return container[n.n]; } |
---|
350 | |
---|
351 | ///\warning There is no safety check at all! |
---|
352 | ///Using operator = between maps attached to different graph may |
---|
353 | ///cause serious problem. |
---|
354 | ///\todo Is this really so? |
---|
355 | ///\todo It can copy between different types. |
---|
356 | const NodeMap<T>& operator=(const NodeMap<T> &m) |
---|
357 | { |
---|
358 | container = m.container; |
---|
359 | return *this; |
---|
360 | } |
---|
361 | template<typename TT> |
---|
362 | const NodeMap<T>& operator=(const NodeMap<TT> &m) |
---|
363 | { |
---|
364 | std::copy(m.container.begin(), m.container.end(), container.begin()); |
---|
365 | return *this; |
---|
366 | } |
---|
367 | |
---|
368 | void update() {} //Useless for Dynamic Maps |
---|
369 | void update(T a) {} //Useless for Dynamic Maps |
---|
370 | }; |
---|
371 | |
---|
372 | template <typename T> class EdgeMap : public DynMapBase<Edge> |
---|
373 | { |
---|
374 | std::vector<T> container; |
---|
375 | |
---|
376 | public: |
---|
377 | typedef T ValueType; |
---|
378 | typedef Edge KeyType; |
---|
379 | |
---|
380 | EdgeMap(const SmartGraph &_G) : |
---|
381 | DynMapBase<Edge>(_G), container(_G.maxEdgeId()) |
---|
382 | { |
---|
383 | //FIXME: What if there are empty Id's? |
---|
384 | //FIXME: Can I use 'this' in a constructor? |
---|
385 | G->dyn_edge_maps.push_back(this); |
---|
386 | } |
---|
387 | EdgeMap(const SmartGraph &_G,const T &t) : |
---|
388 | DynMapBase<Edge>(_G), container(_G.maxEdgeId(),t) |
---|
389 | { |
---|
390 | G->dyn_edge_maps.push_back(this); |
---|
391 | } |
---|
392 | EdgeMap(const EdgeMap<T> &m) : |
---|
393 | DynMapBase<Edge>(*m.G), container(m.container) |
---|
394 | { |
---|
395 | G->dyn_edge_maps.push_back(this); |
---|
396 | } |
---|
397 | |
---|
398 | template<typename TT> friend class EdgeMap; |
---|
399 | |
---|
400 | ///\todo It can copy between different types. |
---|
401 | template<typename TT> EdgeMap(const EdgeMap<TT> &m) |
---|
402 | : DynMapBase<Edge>(*m.G), container(m.container.size()) |
---|
403 | { |
---|
404 | G->dyn_edge_maps.push_back(this); |
---|
405 | typename std::vector<TT>::const_iterator i; |
---|
406 | for(typename std::vector<TT>::const_iterator i=m.container.begin(); |
---|
407 | i!=m.container.end(); |
---|
408 | i++) |
---|
409 | container.push_back(*i); |
---|
410 | } |
---|
411 | ~EdgeMap() |
---|
412 | { |
---|
413 | if(G) { |
---|
414 | std::vector<DynMapBase<Edge>* >::iterator i; |
---|
415 | for(i=G->dyn_edge_maps.begin(); |
---|
416 | i!=G->dyn_edge_maps.end() && *i!=this; ++i) ; |
---|
417 | //if(*i==this) G->dyn_edge_maps.erase(i); //Way too slow... |
---|
418 | //A better way to do that: (Is this really important?) |
---|
419 | if(*i==this) { |
---|
420 | *i=G->dyn_edge_maps.back(); |
---|
421 | G->dyn_edge_maps.pop_back(); |
---|
422 | } |
---|
423 | } |
---|
424 | } |
---|
425 | |
---|
426 | void add(const Edge k) |
---|
427 | { |
---|
428 | if(k.n>=int(container.size())) container.resize(k.n+1); |
---|
429 | } |
---|
430 | void erase(const Edge) { } |
---|
431 | |
---|
432 | void set(Edge n, T a) { container[n.n]=a; } |
---|
433 | //T get(Edge n) const { return container[n.n]; } |
---|
434 | typename std::vector<T>::reference |
---|
435 | operator[](Edge n) { return container[n.n]; } |
---|
436 | typename std::vector<T>::const_reference |
---|
437 | operator[](Edge n) const { return container[n.n]; } |
---|
438 | |
---|
439 | ///\warning There is no safety check at all! |
---|
440 | ///Using operator = between maps attached to different graph may |
---|
441 | ///cause serious problem. |
---|
442 | ///\todo Is this really so? |
---|
443 | ///\todo It can copy between different types. |
---|
444 | const EdgeMap<T>& operator=(const EdgeMap<T> &m) |
---|
445 | { |
---|
446 | container = m.container; |
---|
447 | return *this; |
---|
448 | } |
---|
449 | template<typename TT> |
---|
450 | const EdgeMap<T>& operator=(const EdgeMap<TT> &m) |
---|
451 | { |
---|
452 | std::copy(m.container.begin(), m.container.end(), container.begin()); |
---|
453 | return *this; |
---|
454 | } |
---|
455 | |
---|
456 | void update() {} //Useless for DynMaps |
---|
457 | void update(T a) {} //Useless for DynMaps |
---|
458 | }; |
---|
459 | |
---|
460 | }; |
---|
461 | |
---|
462 | ///Graph for bidirectional edges. |
---|
463 | |
---|
464 | ///The purpose of this graph structure is to handle graphs |
---|
465 | ///having bidirectional edges. Here the function \c addEdge(u,v) adds a pair |
---|
466 | ///of oppositely directed edges. |
---|
467 | ///There is a new edge map type called |
---|
468 | ///\ref SymSmartGraph::SymEdgeMap "SymEdgeMap" |
---|
469 | ///that complements this |
---|
470 | ///feature by |
---|
471 | ///storing shared values for the edge pairs. The usual |
---|
472 | ///\ref GraphSkeleton::EdgeMap "EdgeMap" |
---|
473 | ///can be used |
---|
474 | ///as well. |
---|
475 | /// |
---|
476 | ///The oppositely directed edge can also be obtained easily |
---|
477 | ///using \ref opposite. |
---|
478 | ///\warning It shares the similarity with \ref SmartGraph that |
---|
479 | ///it is not possible to delete edges or nodes from the graph. |
---|
480 | //\sa \ref SmartGraph. |
---|
481 | |
---|
482 | class SymSmartGraph : public SmartGraph |
---|
483 | { |
---|
484 | public: |
---|
485 | template<typename T> class SymEdgeMap; |
---|
486 | template<typename T> friend class SymEdgeMap; |
---|
487 | |
---|
488 | SymSmartGraph() : SmartGraph() { } |
---|
489 | SymSmartGraph(const SmartGraph &_g) : SmartGraph(_g) { } |
---|
490 | ///Adds a pair of oppositely directed edges to the graph. |
---|
491 | Edge addEdge(Node u, Node v) |
---|
492 | { |
---|
493 | Edge e = SmartGraph::addEdge(u,v); |
---|
494 | SmartGraph::addEdge(v,u); |
---|
495 | return e; |
---|
496 | } |
---|
497 | |
---|
498 | ///The oppositely directed edge. |
---|
499 | |
---|
500 | ///Returns the oppositely directed |
---|
501 | ///pair of the edge \c e. |
---|
502 | Edge opposite(Edge e) const |
---|
503 | { |
---|
504 | Edge f; |
---|
505 | f.idref() = e.idref() - 2*(e.idref()%2) + 1; |
---|
506 | return f; |
---|
507 | } |
---|
508 | |
---|
509 | ///Common data storage for the edge pairs. |
---|
510 | |
---|
511 | ///This map makes it possible to store data shared by the oppositely |
---|
512 | ///directed pairs of edges. |
---|
513 | template <typename T> class SymEdgeMap : public DynMapBase<Edge> |
---|
514 | { |
---|
515 | std::vector<T> container; |
---|
516 | |
---|
517 | public: |
---|
518 | typedef T ValueType; |
---|
519 | typedef Edge KeyType; |
---|
520 | |
---|
521 | SymEdgeMap(const SymSmartGraph &_G) : |
---|
522 | DynMapBase<Edge>(_G), container(_G.maxEdgeId()/2) |
---|
523 | { |
---|
524 | static_cast<const SymSmartGraph*>(G)->dyn_edge_maps.push_back(this); |
---|
525 | } |
---|
526 | SymEdgeMap(const SymSmartGraph &_G,const T &t) : |
---|
527 | DynMapBase<Edge>(_G), container(_G.maxEdgeId()/2,t) |
---|
528 | { |
---|
529 | G->dyn_edge_maps.push_back(this); |
---|
530 | } |
---|
531 | |
---|
532 | SymEdgeMap(const SymEdgeMap<T> &m) : |
---|
533 | DynMapBase<SymEdge>(*m.G), container(m.container) |
---|
534 | { |
---|
535 | G->dyn_node_maps.push_back(this); |
---|
536 | } |
---|
537 | |
---|
538 | // template<typename TT> friend class SymEdgeMap; |
---|
539 | |
---|
540 | ///\todo It can copy between different types. |
---|
541 | /// |
---|
542 | |
---|
543 | template<typename TT> SymEdgeMap(const SymEdgeMap<TT> &m) |
---|
544 | : DynMapBase<SymEdge>(*m.G), container(m.container.size()) |
---|
545 | { |
---|
546 | G->dyn_node_maps.push_back(this); |
---|
547 | typename std::vector<TT>::const_iterator i; |
---|
548 | for(typename std::vector<TT>::const_iterator i=m.container.begin(); |
---|
549 | i!=m.container.end(); |
---|
550 | i++) |
---|
551 | container.push_back(*i); |
---|
552 | } |
---|
553 | |
---|
554 | ~SymEdgeMap() |
---|
555 | { |
---|
556 | if(G) { |
---|
557 | std::vector<DynMapBase<Edge>* >::iterator i; |
---|
558 | for(i=static_cast<const SymSmartGraph*>(G)->dyn_edge_maps.begin(); |
---|
559 | i!=static_cast<const SymSmartGraph*>(G)->dyn_edge_maps.end() |
---|
560 | && *i!=this; ++i) ; |
---|
561 | //if(*i==this) G->dyn_edge_maps.erase(i); //Way too slow... |
---|
562 | //A better way to do that: (Is this really important?) |
---|
563 | if(*i==this) { |
---|
564 | *i=static_cast<const SymSmartGraph*>(G)->dyn_edge_maps.back(); |
---|
565 | static_cast<const SymSmartGraph*>(G)->dyn_edge_maps.pop_back(); |
---|
566 | } |
---|
567 | } |
---|
568 | } |
---|
569 | |
---|
570 | void add(const Edge k) |
---|
571 | { |
---|
572 | if(!k.idref()%2&&k.idref()/2>=int(container.size())) |
---|
573 | container.resize(k.idref()/2+1); |
---|
574 | } |
---|
575 | void erase(const Edge k) { } |
---|
576 | |
---|
577 | void set(Edge n, T a) { container[n.idref()/2]=a; } |
---|
578 | //T get(Edge n) const { return container[n.idref()/2]; } |
---|
579 | typename std::vector<T>::reference |
---|
580 | operator[](Edge n) { return container[n.idref()/2]; } |
---|
581 | typename std::vector<T>::const_reference |
---|
582 | operator[](Edge n) const { return container[n.idref()/2]; } |
---|
583 | |
---|
584 | ///\warning There is no safety check at all! |
---|
585 | ///Using operator = between maps attached to different graph may |
---|
586 | ///cause serious problem. |
---|
587 | ///\todo Is this really so? |
---|
588 | ///\todo It can copy between different types. |
---|
589 | const SymEdgeMap<T>& operator=(const SymEdgeMap<T> &m) |
---|
590 | { |
---|
591 | container = m.container; |
---|
592 | return *this; |
---|
593 | } |
---|
594 | template<typename TT> |
---|
595 | const SymEdgeMap<T>& operator=(const SymEdgeMap<TT> &m) |
---|
596 | { |
---|
597 | std::copy(m.container.begin(), m.container.end(), container.begin()); |
---|
598 | return *this; |
---|
599 | } |
---|
600 | |
---|
601 | void update() {} //Useless for DynMaps |
---|
602 | void update(T a) {} //Useless for DynMaps |
---|
603 | |
---|
604 | }; |
---|
605 | |
---|
606 | }; |
---|
607 | |
---|
608 | /// @} |
---|
609 | |
---|
610 | } //namespace hugo |
---|
611 | |
---|
612 | |
---|
613 | |
---|
614 | |
---|
615 | #endif //HUGO_SMART_GRAPH_H |
---|