Parent Directory | Revision Log
Track handling redone
1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. |
3 | * |
4 | * This file is part of OSM2Go. |
5 | * |
6 | * OSM2Go is free software: you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation, either version 3 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * OSM2Go is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | #include <stdio.h> |
21 | #include <stdlib.h> |
22 | #include <string.h> |
23 | #include <math.h> |
24 | |
25 | #define __USE_XOPEN |
26 | #include <time.h> |
27 | |
28 | #include <libxml/parser.h> |
29 | #include <libxml/tree.h> |
30 | |
31 | #include "appdata.h" |
32 | #include "banner.h" |
33 | |
34 | #ifndef LIBXML_TREE_ENABLED |
35 | #error "Tree not enabled in libxml" |
36 | #endif |
37 | |
38 | /* ------------------------- bounds handling --------------------- */ |
39 | |
40 | static void osm_bounds_free(bounds_t *bounds) { |
41 | free(bounds); |
42 | } |
43 | |
44 | static void osm_bounds_dump(bounds_t *bounds) { |
45 | printf("\nBounds: %f->%f %f->%f\n", |
46 | bounds->ll_min.lat, bounds->ll_max.lat, |
47 | bounds->ll_min.lon, bounds->ll_max.lon); |
48 | } |
49 | |
50 | /* ------------------------- user handling --------------------- */ |
51 | |
52 | void osm_users_free(user_t *user) { |
53 | while(user) { |
54 | user_t *next = user->next; |
55 | |
56 | if(user->name) g_free(user->name); |
57 | g_free(user); |
58 | |
59 | user = next; |
60 | } |
61 | } |
62 | |
63 | void osm_users_dump(user_t *user) { |
64 | printf("\nUser list:\n"); |
65 | while(user) { |
66 | printf("Name: %s\n", user->name); |
67 | user = user->next; |
68 | } |
69 | } |
70 | |
71 | static user_t *osm_user(osm_t *osm, char *name) { |
72 | if(!name) return NULL; |
73 | |
74 | /* search through user list */ |
75 | user_t **user = &osm->user; |
76 | while(*user && strcasecmp((*user)->name, name) < 0) |
77 | user = &(*user)->next; |
78 | |
79 | /* end of list or inexact match? create new user entry! */ |
80 | if(!*user || strcasecmp((*user)->name, name)) { |
81 | user_t *new = g_new0(user_t, 1); |
82 | new->name = g_strdup(name); |
83 | new->next = *user; |
84 | *user = new; |
85 | |
86 | return new; |
87 | } |
88 | |
89 | return *user; |
90 | } |
91 | |
92 | static |
93 | time_t convert_iso8601(const char *str) { |
94 | if(!str) return 0; |
95 | |
96 | tzset(); |
97 | |
98 | struct tm ctime; |
99 | memset(&ctime, 0, sizeof(struct tm)); |
100 | strptime(str, "%FT%T%z", &ctime); |
101 | |
102 | return mktime(&ctime) - timezone; |
103 | } |
104 | |
105 | /* -------------------- tag handling ----------------------- */ |
106 | |
107 | void osm_tag_free(tag_t *tag) { |
108 | if(tag->key) g_free(tag->key); |
109 | if(tag->value) g_free(tag->value); |
110 | g_free(tag); |
111 | } |
112 | |
113 | void osm_tags_free(tag_t *tag) { |
114 | while(tag) { |
115 | tag_t *next = tag->next; |
116 | osm_tag_free(tag); |
117 | tag = next; |
118 | } |
119 | } |
120 | |
121 | static void osm_tags_dump(tag_t *tag) { |
122 | while(tag) { |
123 | printf("Key/Val: %s/%s\n", tag->key, tag->value); |
124 | tag = tag->next; |
125 | } |
126 | } |
127 | |
128 | tag_t *osm_parse_osm_tag(osm_t *osm, xmlDocPtr doc, xmlNode *a_node) { |
129 | xmlNode *cur_node = NULL; |
130 | |
131 | /* allocate a new tag structure */ |
132 | tag_t *tag = g_new0(tag_t, 1); |
133 | |
134 | char *prop; |
135 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"k"))) { |
136 | if(strlen(prop) > 0) tag->key = g_strdup(prop); |
137 | xmlFree(prop); |
138 | } |
139 | |
140 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"v"))) { |
141 | if(strlen(prop) > 0) tag->value = g_strdup(prop); |
142 | xmlFree(prop); |
143 | } |
144 | |
145 | if(!tag->key || !tag->value) { |
146 | printf("incomplete tag key/value %s/%s\n", tag->key, tag->value); |
147 | osm_tags_free(tag); |
148 | return NULL; |
149 | } |
150 | |
151 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) |
152 | if (cur_node->type == XML_ELEMENT_NODE) |
153 | printf("found unhandled osm/node/tag/%s\n", cur_node->name); |
154 | |
155 | return tag; |
156 | } |
157 | |
158 | gboolean osm_is_creator_tag(tag_t *tag) { |
159 | if(strcasecmp(tag->key, "created_by") == 0) return TRUE; |
160 | if(strcasecmp(tag->key, "source") == 0) return TRUE; |
161 | |
162 | return FALSE; |
163 | } |
164 | |
165 | gboolean osm_tag_key_and_value_present(tag_t *haystack, tag_t *tag) { |
166 | while(haystack) { |
167 | if((strcasecmp(haystack->key, tag->key) == 0) && |
168 | (strcasecmp(haystack->value, tag->value) == 0)) |
169 | return TRUE; |
170 | |
171 | haystack = haystack->next; |
172 | } |
173 | return FALSE; |
174 | } |
175 | |
176 | gboolean osm_tag_key_other_value_present(tag_t *haystack, tag_t *tag) { |
177 | while(haystack) { |
178 | if((strcasecmp(haystack->key, tag->key) == 0) && |
179 | (strcasecmp(haystack->value, tag->value) != 0)) |
180 | return TRUE; |
181 | |
182 | haystack = haystack->next; |
183 | } |
184 | return FALSE; |
185 | } |
186 | |
187 | gboolean osm_way_ends_with_node(way_t *way, node_t *node) { |
188 | /* and deleted way may even not contain any nodes at all */ |
189 | /* so ignore it */ |
190 | if(way->flags & OSM_FLAG_DELETED) |
191 | return FALSE; |
192 | |
193 | /* any valid way must have at least two nodes */ |
194 | g_assert(way->node_chain && way->node_chain->next); |
195 | |
196 | node_chain_t *chain = way->node_chain; |
197 | if(chain->node == node) return TRUE; |
198 | |
199 | while(chain->next) chain = chain->next; |
200 | if(chain->node == node) return TRUE; |
201 | |
202 | return FALSE; |
203 | } |
204 | |
205 | /* ------------------- node handling ------------------- */ |
206 | |
207 | void osm_node_free(icon_t **icon, node_t *node) { |
208 | if(node->icon_buf) |
209 | icon_free(icon, node->icon_buf); |
210 | |
211 | /* there must not be anything left in this chain */ |
212 | g_assert(!node->map_item_chain); |
213 | |
214 | osm_tags_free(node->tag); |
215 | g_free(node); |
216 | } |
217 | |
218 | static void osm_nodes_free(icon_t **icon, node_t *node) { |
219 | while(node) { |
220 | node_t *next = node->next; |
221 | osm_node_free(icon, node); |
222 | node = next; |
223 | } |
224 | } |
225 | |
226 | void osm_node_dump(node_t *node) { |
227 | char buf[64]; |
228 | struct tm tm; |
229 | |
230 | printf("Id: %lu\n", node->id); |
231 | printf("User: %s\n", node->user?node->user->name:"<unspecified>"); |
232 | printf("Visible: %s\n", node->visible?"yes":"no"); |
233 | |
234 | localtime_r(&node->time, &tm); |
235 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
236 | printf("Time: %s\n", buf); |
237 | osm_tags_dump(node->tag); |
238 | } |
239 | |
240 | void osm_nodes_dump(node_t *node) { |
241 | printf("\nNode list:\n"); |
242 | while(node) { |
243 | osm_node_dump(node); |
244 | printf("\n"); |
245 | node = node->next; |
246 | } |
247 | } |
248 | |
249 | /* ------------------- way handling ------------------- */ |
250 | |
251 | void osm_node_chain_free(node_chain_t *node_chain) { |
252 | while(node_chain) { |
253 | g_assert(node_chain->node->ways); |
254 | |
255 | node_chain_t *next = node_chain->next; |
256 | node_chain->node->ways--; |
257 | g_free(node_chain); |
258 | node_chain = next; |
259 | } |
260 | } |
261 | |
262 | void osm_way_free(way_t *way) { |
263 | // printf("freeing way #%ld\n", way->id); |
264 | |
265 | osm_node_chain_free(way->node_chain); |
266 | osm_tags_free(way->tag); |
267 | |
268 | /* there must not be anything left in this chain */ |
269 | g_assert(!way->map_item_chain); |
270 | |
271 | g_free(way); |
272 | } |
273 | |
274 | static void osm_ways_free(way_t *way) { |
275 | while(way) { |
276 | way_t *next = way->next; |
277 | osm_way_free(way); |
278 | way = next; |
279 | } |
280 | } |
281 | |
282 | void osm_way_append_node(way_t *way, node_t *node) { |
283 | node_chain_t **node_chain = &way->node_chain; |
284 | |
285 | while(*node_chain) |
286 | node_chain = &((*node_chain)->next); |
287 | |
288 | *node_chain = g_new0(node_chain_t, 1); |
289 | (*node_chain)->node = node; |
290 | |
291 | node->ways++; |
292 | } |
293 | |
294 | int osm_node_chain_length(node_chain_t *node_chain) { |
295 | int cnt = 0; |
296 | while(node_chain) { |
297 | cnt++; |
298 | node_chain = node_chain->next; |
299 | } |
300 | |
301 | return cnt; |
302 | } |
303 | |
304 | void osm_way_dump(way_t *way) { |
305 | char buf[64]; |
306 | struct tm tm; |
307 | |
308 | printf("Id: %lu\n", way->id); |
309 | printf("User: %s\n", way->user?way->user->name:"<unspecified>"); |
310 | printf("Visible: %s\n", way->visible?"yes":"no"); |
311 | node_chain_t *node_chain = way->node_chain; |
312 | while(node_chain) { |
313 | printf(" Node: %lu\n", node_chain->node->id); |
314 | node_chain = node_chain->next; |
315 | } |
316 | |
317 | localtime_r(&way->time, &tm); |
318 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
319 | printf("Time: %s\n", buf); |
320 | osm_tags_dump(way->tag); |
321 | } |
322 | |
323 | void osm_ways_dump(way_t *way) { |
324 | printf("\nWay list:\n"); |
325 | while(way) { |
326 | osm_way_dump(way); |
327 | printf("\n"); |
328 | way = way->next; |
329 | } |
330 | } |
331 | |
332 | node_chain_t *osm_parse_osm_way_nd(osm_t *osm, |
333 | xmlDocPtr doc, xmlNode *a_node) { |
334 | char *prop; |
335 | |
336 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"ref"))) { |
337 | item_id_t id = strtoul(prop, NULL, 10); |
338 | node_chain_t *node_chain = g_new0(node_chain_t, 1); |
339 | |
340 | /* search matching node */ |
341 | node_chain->node = osm_get_node_by_id(osm, id); |
342 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
343 | else node_chain->node->ways++; |
344 | |
345 | xmlFree(prop); |
346 | |
347 | return node_chain; |
348 | } |
349 | |
350 | return NULL; |
351 | } |
352 | |
353 | /* ------------------- relation handling ------------------- */ |
354 | |
355 | void osm_member_free(member_t *member) { |
356 | if(member->role) g_free(member->role); |
357 | g_free(member); |
358 | } |
359 | |
360 | void osm_members_free(member_t *member) { |
361 | while(member) { |
362 | member_t *next = member->next; |
363 | osm_member_free(member); |
364 | member = next; |
365 | } |
366 | } |
367 | |
368 | void osm_relation_free(relation_t *relation) { |
369 | osm_tags_free(relation->tag); |
370 | osm_members_free(relation->member); |
371 | |
372 | g_free(relation); |
373 | } |
374 | |
375 | static void osm_relations_free(relation_t *relation) { |
376 | while(relation) { |
377 | relation_t *next = relation->next; |
378 | osm_relation_free(relation); |
379 | relation = next; |
380 | } |
381 | } |
382 | |
383 | void osm_relations_dump(relation_t *relation) { |
384 | printf("\nRelation list:\n"); |
385 | while(relation) { |
386 | char buf[64]; |
387 | struct tm tm; |
388 | |
389 | printf("Id: %lu\n", relation->id); |
390 | printf("User: %s\n", |
391 | relation->user?relation->user->name:"<unspecified>"); |
392 | printf("Visible: %s\n", relation->visible?"yes":"no"); |
393 | |
394 | member_t *member = relation->member; |
395 | while(member) { |
396 | switch(member->object.type) { |
397 | case ILLEGAL: |
398 | case NODE_ID: |
399 | case WAY_ID: |
400 | case RELATION_ID: |
401 | break; |
402 | |
403 | case NODE: |
404 | if(member->object.node) |
405 | printf(" Member: Node, id = %lu, role = %s\n", |
406 | member->object.node->id, member->role); |
407 | break; |
408 | |
409 | case WAY: |
410 | if(member->object.way) |
411 | printf(" Member: Way, id = %lu, role = %s\n", |
412 | member->object.way->id, member->role); |
413 | break; |
414 | |
415 | case RELATION: |
416 | if(member->object.relation) |
417 | printf(" Member: Relation, id = %lu, role = %s\n", |
418 | member->object.relation->id, member->role); |
419 | break; |
420 | } |
421 | |
422 | member = member->next; |
423 | } |
424 | |
425 | localtime_r(&relation->time, &tm); |
426 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
427 | printf("Time: %s\n", buf); |
428 | osm_tags_dump(relation->tag); |
429 | |
430 | printf("\n"); |
431 | relation = relation->next; |
432 | } |
433 | } |
434 | |
435 | member_t *osm_parse_osm_relation_member(osm_t *osm, |
436 | xmlDocPtr doc, xmlNode *a_node) { |
437 | char *prop; |
438 | member_t *member = g_new0(member_t, 1); |
439 | member->object.type = ILLEGAL; |
440 | |
441 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"type"))) { |
442 | if(strcasecmp(prop, "way") == 0) member->object.type = WAY; |
443 | else if(strcasecmp(prop, "node") == 0) member->object.type = NODE; |
444 | else if(strcasecmp(prop, "relation") == 0) member->object.type = RELATION; |
445 | xmlFree(prop); |
446 | } |
447 | |
448 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"ref"))) { |
449 | item_id_t id = strtoul(prop, NULL, 10); |
450 | |
451 | switch(member->object.type) { |
452 | case ILLEGAL: |
453 | printf("Unable to store illegal type\n"); |
454 | break; |
455 | |
456 | case WAY: |
457 | /* search matching way */ |
458 | member->object.way = osm_get_way_by_id(osm, id); |
459 | if(!member->object.way) { |
460 | member->object.type = WAY_ID; |
461 | member->object.id = id; |
462 | } |
463 | break; |
464 | |
465 | case NODE: |
466 | /* search matching node */ |
467 | member->object.node = osm_get_node_by_id(osm, id); |
468 | if(!member->object.node) { |
469 | member->object.type = NODE_ID; |
470 | member->object.id = id; |
471 | } |
472 | break; |
473 | |
474 | case RELATION: |
475 | /* search matching relation */ |
476 | member->object.relation = osm_get_relation_by_id(osm, id); |
477 | if(!member->object.relation) { |
478 | member->object.type = NODE_ID; |
479 | member->object.id = id; |
480 | } |
481 | break; |
482 | |
483 | case WAY_ID: |
484 | case NODE_ID: |
485 | case RELATION_ID: |
486 | break; |
487 | } |
488 | |
489 | xmlFree(prop); |
490 | } |
491 | |
492 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"role"))) { |
493 | if(strlen(prop) > 0) member->role = g_strdup(prop); |
494 | xmlFree(prop); |
495 | } |
496 | |
497 | return member; |
498 | } |
499 | |
500 | /* ------------------ osm handling ----------------- */ |
501 | |
502 | /* the two hash tables eat over 512kBytes memory and may thus be */ |
503 | /* freed at any time. osm2go can work without them (albeit slower) */ |
504 | static void hash_table_free(hash_table_t *table) { |
505 | if(!table) return; |
506 | |
507 | int i; |
508 | for(i=0;i<65536;i++) { |
509 | hash_item_t *item = table->hash[i]; |
510 | while(item) { |
511 | hash_item_t *next = item->next; |
512 | g_free(item); |
513 | item = next; |
514 | } |
515 | } |
516 | } |
517 | |
518 | void osm_hash_tables_free(osm_t *osm) { |
519 | hash_table_free(osm->node_hash); |
520 | osm->node_hash = NULL; |
521 | hash_table_free(osm->way_hash); |
522 | osm->way_hash = NULL; |
523 | } |
524 | |
525 | void osm_free(icon_t **icon, osm_t *osm) { |
526 | if(!osm) return; |
527 | |
528 | osm_hash_tables_free(osm); |
529 | |
530 | if(osm->bounds) osm_bounds_free(osm->bounds); |
531 | if(osm->user) osm_users_free(osm->user); |
532 | if(osm->way) osm_ways_free(osm->way); |
533 | if(osm->node) osm_nodes_free(icon, osm->node); |
534 | if(osm->relation) osm_relations_free(osm->relation); |
535 | g_free(osm); |
536 | } |
537 | |
538 | void osm_dump(osm_t *osm) { |
539 | osm_bounds_dump(osm->bounds); |
540 | osm_users_dump(osm->user); |
541 | osm_nodes_dump(osm->node); |
542 | osm_ways_dump(osm->way); |
543 | osm_relations_dump(osm->relation); |
544 | } |
545 | |
546 | /* -------------------------- stream parser ------------------- */ |
547 | |
548 | #include <libxml/xmlreader.h> |
549 | |
550 | static gint my_strcmp(const xmlChar *a, const xmlChar *b) { |
551 | if(!a && !b) return 0; |
552 | if(!a) return -1; |
553 | if(!b) return +1; |
554 | return strcmp((char*)a,(char*)b); |
555 | } |
556 | |
557 | /* skip current element incl. everything below (mainly for testing) */ |
558 | /* returns FALSE if something failed */ |
559 | static gboolean skip_element(xmlTextReaderPtr reader) { |
560 | g_assert(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT); |
561 | const xmlChar *name = xmlTextReaderConstName(reader); |
562 | g_assert(name); |
563 | int depth = xmlTextReaderDepth(reader); |
564 | |
565 | if(xmlTextReaderIsEmptyElement(reader)) |
566 | return TRUE; |
567 | |
568 | int ret = xmlTextReaderRead(reader); |
569 | while((ret == 1) && |
570 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
571 | (xmlTextReaderDepth(reader) > depth) || |
572 | (my_strcmp(xmlTextReaderConstName(reader), name) != 0))) { |
573 | ret = xmlTextReaderRead(reader); |
574 | } |
575 | return(ret == 1); |
576 | } |
577 | |
578 | /* parse bounds */ |
579 | static bounds_t *process_bounds(xmlTextReaderPtr reader) { |
580 | char *prop = NULL; |
581 | bounds_t *bounds = g_new0(bounds_t, 1); |
582 | |
583 | bounds->ll_min.lat = bounds->ll_min.lon = NAN; |
584 | bounds->ll_max.lat = bounds->ll_max.lon = NAN; |
585 | |
586 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "minlat"))) { |
587 | bounds->ll_min.lat = g_ascii_strtod(prop, NULL); |
588 | xmlFree(prop); |
589 | } |
590 | |
591 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "maxlat"))) { |
592 | bounds->ll_max.lat = g_ascii_strtod(prop, NULL); |
593 | xmlFree(prop); |
594 | } |
595 | |
596 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "minlon"))) { |
597 | bounds->ll_min.lon = g_ascii_strtod(prop, NULL); |
598 | xmlFree(prop); |
599 | } |
600 | |
601 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "maxlon"))) { |
602 | bounds->ll_max.lon = g_ascii_strtod(prop, NULL); |
603 | xmlFree(prop); |
604 | } |
605 | |
606 | if(isnan(bounds->ll_min.lat) || isnan(bounds->ll_min.lon) || |
607 | isnan(bounds->ll_max.lat) || isnan(bounds->ll_max.lon)) { |
608 | errorf(NULL, "Invalid coordinate in bounds (%f/%f/%f/%f)", |
609 | bounds->ll_min.lat, bounds->ll_min.lon, |
610 | bounds->ll_max.lat, bounds->ll_max.lon); |
611 | |
612 | osm_bounds_free(bounds); |
613 | return NULL; |
614 | } |
615 | |
616 | /* skip everything below */ |
617 | skip_element(reader); |
618 | |
619 | /* calculate map zone which will be used as a reference for all */ |
620 | /* drawing/projection later on */ |
621 | pos_t center = { (bounds->ll_max.lat + bounds->ll_min.lat)/2, |
622 | (bounds->ll_max.lon + bounds->ll_min.lon)/2 }; |
623 | |
624 | pos2lpos_center(¢er, &bounds->center); |
625 | |
626 | /* the scale is needed to accomodate for "streching" */ |
627 | /* by the mercartor projection */ |
628 | bounds->scale = cos(DEG2RAD(center.lat)); |
629 | |
630 | pos2lpos_center(&bounds->ll_min, &bounds->min); |
631 | bounds->min.x -= bounds->center.x; |
632 | bounds->min.y -= bounds->center.y; |
633 | bounds->min.x *= bounds->scale; |
634 | bounds->min.y *= bounds->scale; |
635 | |
636 | pos2lpos_center(&bounds->ll_max, &bounds->max); |
637 | bounds->max.x -= bounds->center.x; |
638 | bounds->max.y -= bounds->center.y; |
639 | bounds->max.x *= bounds->scale; |
640 | bounds->max.y *= bounds->scale; |
641 | |
642 | return bounds; |
643 | } |
644 | |
645 | static tag_t *process_tag(xmlTextReaderPtr reader) { |
646 | /* allocate a new tag structure */ |
647 | tag_t *tag = g_new0(tag_t, 1); |
648 | |
649 | char *prop; |
650 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "k"))) { |
651 | if(strlen(prop) > 0) tag->key = g_strdup(prop); |
652 | xmlFree(prop); |
653 | } |
654 | |
655 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "v"))) { |
656 | if(strlen(prop) > 0) tag->value = g_strdup(prop); |
657 | xmlFree(prop); |
658 | } |
659 | |
660 | if(!tag->key || !tag->value) { |
661 | printf("incomplete tag key/value %s/%s\n", tag->key, tag->value); |
662 | osm_tags_free(tag); |
663 | tag = NULL; |
664 | } |
665 | |
666 | skip_element(reader); |
667 | return tag; |
668 | } |
669 | |
670 | static node_t *process_node(xmlTextReaderPtr reader, osm_t *osm) { |
671 | |
672 | /* allocate a new node structure */ |
673 | node_t *node = g_new0(node_t, 1); |
674 | node->pos.lat = node->pos.lon = NAN; |
675 | |
676 | char *prop; |
677 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
678 | node->id = strtoul(prop, NULL, 10); |
679 | xmlFree(prop); |
680 | } |
681 | |
682 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "lat"))) { |
683 | node->pos.lat = g_ascii_strtod(prop, NULL); |
684 | xmlFree(prop); |
685 | } |
686 | |
687 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "lon"))) { |
688 | node->pos.lon = g_ascii_strtod(prop, NULL); |
689 | xmlFree(prop); |
690 | } |
691 | |
692 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
693 | node->user = osm_user(osm, prop); |
694 | xmlFree(prop); |
695 | } |
696 | |
697 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
698 | node->visible = (strcasecmp(prop, "true") == 0); |
699 | xmlFree(prop); |
700 | } |
701 | |
702 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
703 | node->time = convert_iso8601(prop); |
704 | xmlFree(prop); |
705 | } |
706 | |
707 | pos2lpos(osm->bounds, &node->pos, &node->lpos); |
708 | |
709 | /* append node to end of hash table if present */ |
710 | if(osm->node_hash) { |
711 | hash_item_t **item = &osm->node_hash->hash[ID2HASH(node->id)]; |
712 | while(*item) item = &(*item)->next; |
713 | |
714 | *item = g_new0(hash_item_t, 1); |
715 | (*item)->data.node = node; |
716 | } |
717 | |
718 | /* just an empty element? then return the node as it is */ |
719 | if(xmlTextReaderIsEmptyElement(reader)) |
720 | return node; |
721 | |
722 | /* parse tags if present */ |
723 | int depth = xmlTextReaderDepth(reader); |
724 | |
725 | /* scan all elements on same level or its children */ |
726 | tag_t **tag = &node->tag; |
727 | int ret = xmlTextReaderRead(reader); |
728 | while((ret == 1) && |
729 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
730 | (xmlTextReaderDepth(reader) != depth))) { |
731 | |
732 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
733 | char *subname = (char*)xmlTextReaderConstName(reader); |
734 | if(strcasecmp(subname, "tag") == 0) { |
735 | *tag = process_tag(reader); |
736 | if(*tag) tag = &(*tag)->next; |
737 | } else |
738 | skip_element(reader); |
739 | } |
740 | |
741 | ret = xmlTextReaderRead(reader); |
742 | } |
743 | |
744 | return node; |
745 | } |
746 | |
747 | static node_chain_t *process_nd(xmlTextReaderPtr reader, osm_t *osm) { |
748 | char *prop; |
749 | |
750 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) { |
751 | item_id_t id = strtoul(prop, NULL, 10); |
752 | node_chain_t *node_chain = g_new0(node_chain_t, 1); |
753 | |
754 | /* search matching node */ |
755 | node_chain->node = osm_get_node_by_id(osm, id); |
756 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
757 | else node_chain->node->ways++; |
758 | |
759 | xmlFree(prop); |
760 | |
761 | skip_element(reader); |
762 | return node_chain; |
763 | } |
764 | |
765 | skip_element(reader); |
766 | return NULL; |
767 | } |
768 | |
769 | static way_t *process_way(xmlTextReaderPtr reader, osm_t *osm) { |
770 | /* allocate a new way structure */ |
771 | way_t *way = g_new0(way_t, 1); |
772 | |
773 | char *prop; |
774 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
775 | way->id = strtoul(prop, NULL, 10); |
776 | xmlFree(prop); |
777 | } |
778 | |
779 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
780 | way->user = osm_user(osm, prop); |
781 | xmlFree(prop); |
782 | } |
783 | |
784 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
785 | way->visible = (strcasecmp(prop, "true") == 0); |
786 | xmlFree(prop); |
787 | } |
788 | |
789 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
790 | way->time = convert_iso8601(prop); |
791 | xmlFree(prop); |
792 | } |
793 | |
794 | /* append way to end of hash table if present */ |
795 | if(osm->way_hash) { |
796 | hash_item_t **item = &osm->way_hash->hash[ID2HASH(way->id)]; |
797 | while(*item) item = &(*item)->next; |
798 | |
799 | *item = g_new0(hash_item_t, 1); |
800 | (*item)->data.way = way; |
801 | } |
802 | |
803 | /* just an empty element? then return the way as it is */ |
804 | /* (this should in fact never happen as this would be a way without nodes) */ |
805 | if(xmlTextReaderIsEmptyElement(reader)) |
806 | return way; |
807 | |
808 | /* parse tags/nodes if present */ |
809 | int depth = xmlTextReaderDepth(reader); |
810 | |
811 | /* scan all elements on same level or its children */ |
812 | tag_t **tag = &way->tag; |
813 | node_chain_t **node_chain = &way->node_chain; |
814 | int ret = xmlTextReaderRead(reader); |
815 | while((ret == 1) && |
816 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
817 | (xmlTextReaderDepth(reader) != depth))) { |
818 | |
819 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
820 | char *subname = (char*)xmlTextReaderConstName(reader); |
821 | if(strcasecmp(subname, "nd") == 0) { |
822 | *node_chain = process_nd(reader, osm); |
823 | if(*node_chain) node_chain = &(*node_chain)->next; |
824 | } else if(strcasecmp(subname, "tag") == 0) { |
825 | *tag = process_tag(reader); |
826 | if(*tag) tag = &(*tag)->next; |
827 | } else |
828 | skip_element(reader); |
829 | } |
830 | ret = xmlTextReaderRead(reader); |
831 | } |
832 | |
833 | return way; |
834 | } |
835 | |
836 | static member_t *process_member(xmlTextReaderPtr reader, osm_t *osm) { |
837 | char *prop; |
838 | member_t *member = g_new0(member_t, 1); |
839 | member->object.type = ILLEGAL; |
840 | |
841 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "type"))) { |
842 | if(strcasecmp(prop, "way") == 0) member->object.type = WAY; |
843 | else if(strcasecmp(prop, "node") == 0) member->object.type = NODE; |
844 | else if(strcasecmp(prop, "relation") == 0) member->object.type = RELATION; |
845 | xmlFree(prop); |
846 | } |
847 | |
848 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) { |
849 | item_id_t id = strtoul(prop, NULL, 10); |
850 | |
851 | switch(member->object.type) { |
852 | case ILLEGAL: |
853 | printf("Unable to store illegal type\n"); |
854 | break; |
855 | |
856 | case WAY: |
857 | /* search matching way */ |
858 | member->object.way = osm_get_way_by_id(osm, id); |
859 | if(!member->object.way) { |
860 | member->object.type = WAY_ID; |
861 | member->object.id = id; |
862 | } |
863 | break; |
864 | |
865 | case NODE: |
866 | /* search matching node */ |
867 | member->object.node = osm_get_node_by_id(osm, id); |
868 | if(!member->object.node) { |
869 | member->object.type = NODE_ID; |
870 | member->object.id = id; |
871 | } |
872 | break; |
873 | |
874 | case RELATION: |
875 | /* search matching relation */ |
876 | member->object.relation = osm_get_relation_by_id(osm, id); |
877 | if(!member->object.relation) { |
878 | member->object.type = NODE_ID; |
879 | member->object.id = id; |
880 | } |
881 | break; |
882 | |
883 | case WAY_ID: |
884 | case NODE_ID: |
885 | case RELATION_ID: |
886 | break; |
887 | } |
888 | |
889 | xmlFree(prop); |
890 | } |
891 | |
892 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "role"))) { |
893 | if(strlen(prop) > 0) member->role = g_strdup(prop); |
894 | xmlFree(prop); |
895 | } |
896 | |
897 | return member; |
898 | } |
899 | |
900 | static relation_t *process_relation(xmlTextReaderPtr reader, osm_t *osm) { |
901 | /* allocate a new relation structure */ |
902 | relation_t *relation = g_new0(relation_t, 1); |
903 | |
904 | char *prop; |
905 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
906 | relation->id = strtoul(prop, NULL, 10); |
907 | xmlFree(prop); |
908 | } |
909 | |
910 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
911 | relation->user = osm_user(osm, prop); |
912 | xmlFree(prop); |
913 | } |
914 | |
915 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
916 | relation->visible = (strcasecmp(prop, "true") == 0); |
917 | xmlFree(prop); |
918 | } |
919 | |
920 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
921 | relation->time = convert_iso8601(prop); |
922 | xmlFree(prop); |
923 | } |
924 | |
925 | /* just an empty element? then return the relation as it is */ |
926 | /* (this should in fact never happen as this would be a relation */ |
927 | /* without members) */ |
928 | if(xmlTextReaderIsEmptyElement(reader)) |
929 | return relation; |
930 | |
931 | /* parse tags/member if present */ |
932 | int depth = xmlTextReaderDepth(reader); |
933 | |
934 | /* scan all elements on same level or its children */ |
935 | tag_t **tag = &relation->tag; |
936 | member_t **member = &relation->member; |
937 | int ret = xmlTextReaderRead(reader); |
938 | while((ret == 1) && |
939 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
940 | (xmlTextReaderDepth(reader) != depth))) { |
941 | |
942 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
943 | char *subname = (char*)xmlTextReaderConstName(reader); |
944 | if(strcasecmp(subname, "member") == 0) { |
945 | *member = process_member(reader, osm); |
946 | if(*member) member = &(*member)->next; |
947 | } else if(strcasecmp(subname, "tag") == 0) { |
948 | *tag = process_tag(reader); |
949 | if(*tag) tag = &(*tag)->next; |
950 | } else |
951 | skip_element(reader); |
952 | } |
953 | ret = xmlTextReaderRead(reader); |
954 | } |
955 | |
956 | return relation; |
957 | } |
958 | |
959 | static osm_t *process_osm(xmlTextReaderPtr reader) { |
960 | /* alloc osm structure */ |
961 | osm_t *osm = g_new0(osm_t, 1); |
962 | osm->node_hash = g_new0(hash_table_t, 1); |
963 | osm->way_hash = g_new0(hash_table_t, 1); |
964 | |
965 | node_t **node = &osm->node; |
966 | way_t **way = &osm->way; |
967 | relation_t **relation = &osm->relation; |
968 | |
969 | /* no attributes of interest */ |
970 | |
971 | const xmlChar *name = xmlTextReaderConstName(reader); |
972 | g_assert(name); |
973 | |
974 | /* read next node */ |
975 | int num_elems = 0; |
976 | const int tick_every = 50; // Balance responsive appearance with performance. |
977 | int ret = xmlTextReaderRead(reader); |
978 | while(ret == 1) { |
979 | |
980 | switch(xmlTextReaderNodeType(reader)) { |
981 | case XML_READER_TYPE_ELEMENT: |
982 | |
983 | g_assert(xmlTextReaderDepth(reader) == 1); |
984 | char *name = (char*)xmlTextReaderConstName(reader); |
985 | if(strcasecmp(name, "bounds") == 0) { |
986 | osm->bounds = process_bounds(reader); |
987 | } else if(strcasecmp(name, "node") == 0) { |
988 | *node = process_node(reader, osm); |
989 | if(*node) node = &(*node)->next; |
990 | } else if(strcasecmp(name, "way") == 0) { |
991 | *way = process_way(reader, osm); |
992 | if(*way) way = &(*way)->next; |
993 | } else if(strcasecmp(name, "relation") == 0) { |
994 | *relation = process_relation(reader, osm); |
995 | if(*relation) relation = &(*relation)->next; |
996 | } else { |
997 | printf("something unknown found\n"); |
998 | g_assert(0); |
999 | skip_element(reader); |
1000 | } |
1001 | break; |
1002 | |
1003 | case XML_READER_TYPE_END_ELEMENT: |
1004 | /* end element must be for the current element */ |
1005 | g_assert(xmlTextReaderDepth(reader) == 0); |
1006 | return osm; |
1007 | break; |
1008 | |
1009 | default: |
1010 | break; |
1011 | } |
1012 | ret = xmlTextReaderRead(reader); |
1013 | |
1014 | if (num_elems++ > tick_every) { |
1015 | num_elems = 0; |
1016 | banner_busy_tick(); |
1017 | } |
1018 | } |
1019 | |
1020 | g_assert(0); |
1021 | return NULL; |
1022 | } |
1023 | |
1024 | static osm_t *process_file(const char *filename) { |
1025 | osm_t *osm = NULL; |
1026 | xmlTextReaderPtr reader; |
1027 | int ret; |
1028 | |
1029 | reader = xmlReaderForFile(filename, NULL, 0); |
1030 | if (reader != NULL) { |
1031 | ret = xmlTextReaderRead(reader); |
1032 | if(ret == 1) { |
1033 | char *name = (char*)xmlTextReaderConstName(reader); |
1034 | if(name && strcasecmp(name, "osm") == 0) |
1035 | osm = process_osm(reader); |
1036 | } else |
1037 | printf("file empty\n"); |
1038 | |
1039 | xmlFreeTextReader(reader); |
1040 | } else { |
1041 | fprintf(stderr, "Unable to open %s\n", filename); |
1042 | } |
1043 | return osm; |
1044 | } |
1045 | |
1046 | /* ----------------------- end of stream parser ------------------- */ |
1047 | |
1048 | #include <sys/time.h> |
1049 | |
1050 | osm_t *osm_parse(char *filename) { |
1051 | |
1052 | struct timeval start; |
1053 | gettimeofday(&start, NULL); |
1054 | |
1055 | LIBXML_TEST_VERSION; |
1056 | |
1057 | // use stream parser |
1058 | osm_t *osm = process_file(filename); |
1059 | xmlCleanupParser(); |
1060 | |
1061 | struct timeval end; |
1062 | gettimeofday(&end, NULL); |
1063 | |
1064 | printf("total parse time: %ldms\n", |
1065 | (end.tv_usec - start.tv_usec)/1000 + |
1066 | (end.tv_sec - start.tv_sec)*1000); |
1067 | |
1068 | return osm; |
1069 | } |
1070 | |
1071 | gboolean osm_sanity_check(GtkWidget *parent, osm_t *osm) { |
1072 | if(!osm->bounds) { |
1073 | errorf(parent, _("Invalid data in OSM file:\n" |
1074 | "Boundary box missing!")); |
1075 | return FALSE; |
1076 | } |
1077 | if(!osm->node) { |
1078 | errorf(parent, _("Invalid data in OSM file:\n" |
1079 | "No drawable content found!")); |
1080 | return FALSE; |
1081 | } |
1082 | return TRUE; |
1083 | } |
1084 | |
1085 | /* ------------------------- misc access functions -------------- */ |
1086 | |
1087 | char *osm_tag_get_by_key(tag_t *tag, char *key) { |
1088 | if(!tag || !key) return NULL; |
1089 | |
1090 | while(tag) { |
1091 | if(strcasecmp(tag->key, key) == 0) |
1092 | return tag->value; |
1093 | |
1094 | tag = tag->next; |
1095 | } |
1096 | |
1097 | return NULL; |
1098 | } |
1099 | |
1100 | char *osm_way_get_value(way_t *way, char *key) { |
1101 | tag_t *tag = way->tag; |
1102 | |
1103 | while(tag) { |
1104 | if(strcasecmp(tag->key, key) == 0) |
1105 | return tag->value; |
1106 | |
1107 | tag = tag->next; |
1108 | } |
1109 | |
1110 | return NULL; |
1111 | } |
1112 | |
1113 | char *osm_node_get_value(node_t *node, char *key) { |
1114 | tag_t *tag = node->tag; |
1115 | |
1116 | while(tag) { |
1117 | if(strcasecmp(tag->key, key) == 0) |
1118 | return tag->value; |
1119 | |
1120 | tag = tag->next; |
1121 | } |
1122 | |
1123 | return NULL; |
1124 | } |
1125 | |
1126 | gboolean osm_way_has_value(way_t *way, char *str) { |
1127 | tag_t *tag = way->tag; |
1128 | |
1129 | while(tag) { |
1130 | if(tag->value && strcasecmp(tag->value, str) == 0) |
1131 | return TRUE; |
1132 | |
1133 | tag = tag->next; |
1134 | } |
1135 | return FALSE; |
1136 | } |
1137 | |
1138 | gboolean osm_node_has_value(node_t *node, char *str) { |
1139 | tag_t *tag = node->tag; |
1140 | |
1141 | while(tag) { |
1142 | if(tag->value && strcasecmp(tag->value, str) == 0) |
1143 | return TRUE; |
1144 | |
1145 | tag = tag->next; |
1146 | } |
1147 | return FALSE; |
1148 | } |
1149 | |
1150 | gboolean osm_node_has_tag(node_t *node) { |
1151 | tag_t *tag = node->tag; |
1152 | |
1153 | if(tag && strcasecmp(tag->key, "created_by") == 0) |
1154 | tag = tag->next; |
1155 | |
1156 | return tag != NULL; |
1157 | } |
1158 | |
1159 | /* return true if node is part of way */ |
1160 | gboolean osm_node_in_way(way_t *way, node_t *node) { |
1161 | node_chain_t *node_chain = way->node_chain; |
1162 | while(node_chain) { |
1163 | if(node_chain->node == node) |
1164 | return TRUE; |
1165 | |
1166 | node_chain = node_chain->next; |
1167 | } |
1168 | return FALSE; |
1169 | } |
1170 | |
1171 | static void osm_generate_tags(tag_t *tag, xmlNodePtr node) { |
1172 | while(tag) { |
1173 | /* make sure "created_by" tag contains our id */ |
1174 | if(strcasecmp(tag->key, "created_by") == 0) { |
1175 | g_free(tag->value); |
1176 | tag->value = g_strdup(PACKAGE " v" VERSION); |
1177 | } |
1178 | |
1179 | xmlNodePtr tag_node = xmlNewChild(node, NULL, BAD_CAST "tag", NULL); |
1180 | xmlNewProp(tag_node, BAD_CAST "k", BAD_CAST tag->key); |
1181 | xmlNewProp(tag_node, BAD_CAST "v", BAD_CAST tag->value); |
1182 | tag = tag->next; |
1183 | } |
1184 | } |
1185 | |
1186 | /* build xml representation for a way */ |
1187 | char *osm_generate_xml(osm_t *osm, type_t type, void *item) { |
1188 | char str[32]; |
1189 | xmlChar *result = NULL; |
1190 | int len = 0; |
1191 | |
1192 | LIBXML_TEST_VERSION; |
1193 | |
1194 | xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0"); |
1195 | xmlNodePtr root_node = xmlNewNode(NULL, BAD_CAST "osm"); |
1196 | xmlNewProp(root_node, BAD_CAST "version", BAD_CAST "0.5"); |
1197 | xmlNewProp(root_node, BAD_CAST "generator", BAD_CAST PACKAGE " V" VERSION); |
1198 | xmlDocSetRootElement(doc, root_node); |
1199 | |
1200 | switch(type) { |
1201 | case NODE: |
1202 | { |
1203 | node_t *node = (node_t*)item; |
1204 | xmlNodePtr node_node = xmlNewChild(root_node, NULL, |
1205 | BAD_CAST "node", NULL); |
1206 | /* new nodes don't have an id, but get one after the upload */ |
1207 | if(!(node->flags & OSM_FLAG_NEW)) { |
1208 | snprintf(str, sizeof(str), "%u", (unsigned)node->id); |
1209 | xmlNewProp(node_node, BAD_CAST "id", BAD_CAST str); |
1210 | } |
1211 | g_ascii_formatd(str, sizeof(str), LL_FORMAT, node->pos.lat); |
1212 | xmlNewProp(node_node, BAD_CAST "lat", BAD_CAST str); |
1213 | g_ascii_formatd(str, sizeof(str), LL_FORMAT, node->pos.lon); |
1214 | xmlNewProp(node_node, BAD_CAST "lon", BAD_CAST str); |
1215 | osm_generate_tags(node->tag, node_node); |
1216 | } |
1217 | break; |
1218 | |
1219 | case WAY: |
1220 | { |
1221 | way_t *way = (way_t*)item; |
1222 | xmlNodePtr way_node = xmlNewChild(root_node, NULL, BAD_CAST "way", NULL); |
1223 | snprintf(str, sizeof(str), "%u", (unsigned)way->id); |
1224 | xmlNewProp(way_node, BAD_CAST "id", BAD_CAST str); |
1225 | |
1226 | node_chain_t *node_chain = way->node_chain; |
1227 | while(node_chain) { |
1228 | xmlNodePtr nd_node = xmlNewChild(way_node, NULL, BAD_CAST "nd", NULL); |
1229 | char *str = g_strdup_printf("%ld", node_chain->node->id); |
1230 | xmlNewProp(nd_node, BAD_CAST "ref", BAD_CAST str); |
1231 | g_free(str); |
1232 | node_chain = node_chain->next; |
1233 | } |
1234 | |
1235 | osm_generate_tags(way->tag, way_node); |
1236 | } |
1237 | break; |
1238 | |
1239 | case RELATION: |
1240 | { |
1241 | relation_t *relation = (relation_t*)item; |
1242 | xmlNodePtr rel_node = xmlNewChild(root_node, NULL, |
1243 | BAD_CAST "relation", NULL); |
1244 | snprintf(str, sizeof(str), "%u", (unsigned)relation->id); |
1245 | xmlNewProp(rel_node, BAD_CAST "id", BAD_CAST str); |
1246 | |
1247 | member_t *member = relation->member; |
1248 | while(member) { |
1249 | xmlNodePtr m_node = xmlNewChild(rel_node,NULL,BAD_CAST "member", NULL); |
1250 | char *str = NULL; |
1251 | |
1252 | switch(member->object.type) { |
1253 | case NODE: |
1254 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "node"); |
1255 | str = g_strdup_printf("%ld", member->object.node->id); |
1256 | break; |
1257 | |
1258 | case WAY: |
1259 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "way"); |
1260 | str = g_strdup_printf("%ld", member->object.way->id); |
1261 | break; |
1262 | |
1263 | case RELATION: |
1264 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "relation"); |
1265 | str = g_strdup_printf("%ld", member->object.relation->id); |
1266 | break; |
1267 | |
1268 | default: |
1269 | break; |
1270 | } |
1271 | |
1272 | if(str) { |
1273 | xmlNewProp(m_node, BAD_CAST "ref", BAD_CAST str); |
1274 | g_free(str); |
1275 | } |
1276 | |
1277 | if(member->role) |
1278 | xmlNewProp(m_node, BAD_CAST "role", BAD_CAST member->role); |
1279 | else |
1280 | xmlNewProp(m_node, BAD_CAST "role", BAD_CAST ""); |
1281 | |
1282 | member = member->next; |
1283 | } |
1284 | osm_generate_tags(relation->tag, rel_node); |
1285 | } |
1286 | break; |
1287 | |
1288 | default: |
1289 | printf("neither NODE nor WAY nor RELATION\n"); |
1290 | g_assert(0); |
1291 | break; |
1292 | } |
1293 | |
1294 | xmlDocDumpFormatMemoryEnc(doc, &result, &len, "UTF-8", 1); |
1295 | xmlFreeDoc(doc); |
1296 | xmlCleanupParser(); |
1297 | |
1298 | // puts("xml encoding result:"); |
1299 | // puts((char*)result); |
1300 | |
1301 | return (char*)result; |
1302 | } |
1303 | |
1304 | /* build xml representation for a node */ |
1305 | char *osm_generate_xml_node(osm_t *osm, node_t *node) { |
1306 | return osm_generate_xml(osm, NODE, node); |
1307 | } |
1308 | |
1309 | /* build xml representation for a way */ |
1310 | char *osm_generate_xml_way(osm_t *osm, way_t *way) { |
1311 | return osm_generate_xml(osm, WAY, way); |
1312 | } |
1313 | |
1314 | /* build xml representation for a relation */ |
1315 | char *osm_generate_xml_relation(osm_t *osm, relation_t *relation) { |
1316 | return osm_generate_xml(osm, RELATION, relation); |
1317 | } |
1318 | |
1319 | /* the following three functions are eating much CPU power */ |
1320 | /* as they search the objects lists. Hashing is supposed to help */ |
1321 | node_t *osm_get_node_by_id(osm_t *osm, item_id_t id) { |
1322 | if(id > 0 && osm->node_hash) { |
1323 | // use hash table if present |
1324 | hash_item_t *item = osm->node_hash->hash[ID2HASH(id)]; |
1325 | while(item) { |
1326 | if(item->data.node->id == id) |
1327 | return item->data.node; |
1328 | |
1329 | item = item->next; |
1330 | } |
1331 | } |
1332 | |
1333 | /* use linear search if no hash tables are present or search in hash table failed */ |
1334 | node_t *node = osm->node; |
1335 | while(node) { |
1336 | if(node->id == id) |
1337 | return node; |
1338 | |
1339 | node = node->next; |
1340 | } |
1341 | |
1342 | return NULL; |
1343 | } |
1344 | |
1345 | way_t *osm_get_way_by_id(osm_t *osm, item_id_t id) { |
1346 | if(id > 0 && osm->way_hash) { |
1347 | // use hash table if present |
1348 | hash_item_t *item = osm->way_hash->hash[ID2HASH(id)]; |
1349 | while(item) { |
1350 | if(item->data.way->id == id) |
1351 | return item->data.way; |
1352 | |
1353 | item = item->next; |
1354 | } |
1355 | } |
1356 | |
1357 | /* use linear search if no hash tables are present or search on hash table failed */ |
1358 | way_t *way = osm->way; |
1359 | while(way) { |
1360 | if(way->id == id) |
1361 | return way; |
1362 | |
1363 | way = way->next; |
1364 | } |
1365 | |
1366 | return NULL; |
1367 | } |
1368 | |
1369 | relation_t *osm_get_relation_by_id(osm_t *osm, item_id_t id) { |
1370 | // use linear search |
1371 | relation_t *relation = osm->relation; |
1372 | while(relation) { |
1373 | if(relation->id == id) |
1374 | return relation; |
1375 | |
1376 | relation = relation->next; |
1377 | } |
1378 | |
1379 | return NULL; |
1380 | } |
1381 | |
1382 | /* ---------- edit functions ------------- */ |
1383 | |
1384 | item_id_t osm_new_way_id(osm_t *osm) { |
1385 | item_id_t id = -1; |
1386 | |
1387 | while(TRUE) { |
1388 | gboolean found = FALSE; |
1389 | way_t *way = osm->way; |
1390 | while(way) { |
1391 | if(way->id == id) |
1392 | found = TRUE; |
1393 | |
1394 | way = way->next; |
1395 | } |
1396 | |
1397 | /* no such id so far -> use it */ |
1398 | if(!found) return id; |
1399 | |
1400 | id--; |
1401 | } |
1402 | g_assert(0); |
1403 | return 0; |
1404 | } |
1405 | |
1406 | item_id_t osm_new_node_id(osm_t *osm) { |
1407 | item_id_t id = -1; |
1408 | |
1409 | while(TRUE) { |
1410 | gboolean found = FALSE; |
1411 | node_t *node = osm->node; |
1412 | while(node) { |
1413 | if(node->id == id) |
1414 | found = TRUE; |
1415 | |
1416 | node = node->next; |
1417 | } |
1418 | |
1419 | /* no such id so far -> use it */ |
1420 | if(!found) return id; |
1421 | |
1422 | id--; |
1423 | } |
1424 | g_assert(0); |
1425 | return 0; |
1426 | } |
1427 | |
1428 | item_id_t osm_new_relation_id(osm_t *osm) { |
1429 | item_id_t id = -1; |
1430 | |
1431 | while(TRUE) { |
1432 | gboolean found = FALSE; |
1433 | relation_t *relation = osm->relation; |
1434 | while(relation) { |
1435 | if(relation->id == id) |
1436 | found = TRUE; |
1437 | |
1438 | relation = relation->next; |
1439 | } |
1440 | |
1441 | /* no such id so far -> use it */ |
1442 | if(!found) return id; |
1443 | |
1444 | id--; |
1445 | } |
1446 | g_assert(0); |
1447 | return 0; |
1448 | } |
1449 | |
1450 | node_t *osm_node_new(osm_t *osm, gint x, gint y) { |
1451 | printf("Creating new node\n"); |
1452 | |
1453 | node_t *node = g_new0(node_t, 1); |
1454 | node->lpos.x = x; |
1455 | node->lpos.y = y; |
1456 | node->visible = TRUE; |
1457 | node->time = time(NULL); |
1458 | |
1459 | /* add created_by tag */ |
1460 | node->tag = g_new0(tag_t, 1); |
1461 | node->tag->key = g_strdup("created_by"); |
1462 | node->tag->value = g_strdup(PACKAGE " v" VERSION); |
1463 | |
1464 | /* convert screen position back to ll */ |
1465 | lpos2pos(osm->bounds, &node->lpos, &node->pos); |
1466 | |
1467 | printf(" new at %d %d (%f %f)\n", |
1468 | node->lpos.x, node->lpos.y, node->pos.lat, node->pos.lon); |
1469 | |
1470 | return node; |
1471 | } |
1472 | |
1473 | |
1474 | void osm_node_attach(osm_t *osm, node_t *node) { |
1475 | printf("Attaching node\n"); |
1476 | |
1477 | node->id = osm_new_node_id(osm); |
1478 | node->flags = OSM_FLAG_NEW; |
1479 | |
1480 | /* attach to end of node list */ |
1481 | node_t **lnode = &osm->node; |
1482 | while(*lnode) lnode = &(*lnode)->next; |
1483 | *lnode = node; |
1484 | } |
1485 | |
1486 | void osm_node_restore(osm_t *osm, node_t *node) { |
1487 | printf("Restoring node\n"); |
1488 | |
1489 | /* attach to end of node list */ |
1490 | node_t **lnode = &osm->node; |
1491 | while(*lnode) lnode = &(*lnode)->next; |
1492 | *lnode = node; |
1493 | } |
1494 | |
1495 | way_t *osm_way_new(void) { |
1496 | printf("Creating new way\n"); |
1497 | |
1498 | way_t *way = g_new0(way_t, 1); |
1499 | way->visible = TRUE; |
1500 | way->flags = OSM_FLAG_NEW; |
1501 | way->time = time(NULL); |
1502 | |
1503 | /* add created_by tag */ |
1504 | way->tag = g_new0(tag_t, 1); |
1505 | way->tag->key = g_strdup("created_by"); |
1506 | way->tag->value = g_strdup(PACKAGE " v" VERSION); |
1507 | |
1508 | return way; |
1509 | } |
1510 | |
1511 | void osm_way_attach(osm_t *osm, way_t *way) { |
1512 | printf("Attaching way\n"); |
1513 | |
1514 | way->id = osm_new_way_id(osm); |
1515 | way->flags = OSM_FLAG_NEW; |
1516 | |
1517 | /* attach to end of way list */ |
1518 | way_t **lway = &osm->way; |
1519 | while(*lway) lway = &(*lway)->next; |
1520 | *lway = way; |
1521 | } |
1522 | |
1523 | /* returns pointer to chain of ways affected by this deletion */ |
1524 | way_chain_t *osm_node_delete(osm_t *osm, icon_t **icon, |
1525 | node_t *node, gboolean permanently, |
1526 | gboolean affect_ways) { |
1527 | way_chain_t *way_chain = NULL, **cur_way_chain = &way_chain; |
1528 | |
1529 | /* new nodes aren't stored on the server and are just deleted permanently */ |
1530 | if(node->flags & OSM_FLAG_NEW) { |
1531 | printf("About to delete NEW node #%ld -> force permanent delete\n", |
1532 | node->id); |
1533 | permanently = TRUE; |
1534 | } |
1535 | |
1536 | /* first remove node from all ways using it */ |
1537 | way_t *way = osm->way; |
1538 | while(way) { |
1539 | node_chain_t **chain = &(way->node_chain); |
1540 | gboolean modified = FALSE; |
1541 | while(*chain) { |
1542 | /* remove node from chain */ |
1543 | if(node == (*chain)->node) { |
1544 | modified = TRUE; |
1545 | if(affect_ways) { |
1546 | node_chain_t *next = (*chain)->next; |
1547 | g_free(*chain); |
1548 | *chain = next; |
1549 | } else |
1550 | chain = &((*chain)->next); |
1551 | } else |
1552 | chain = &((*chain)->next); |
1553 | } |
1554 | |
1555 | if(modified) { |
1556 | way->flags |= OSM_FLAG_DIRTY; |
1557 | |
1558 | /* and add the way to the list of affected ways */ |
1559 | *cur_way_chain = g_new0(way_chain_t, 1); |
1560 | (*cur_way_chain)->way = way; |
1561 | cur_way_chain = &((*cur_way_chain)->next); |
1562 | } |
1563 | |
1564 | way = way->next; |
1565 | } |
1566 | |
1567 | if(!permanently) { |
1568 | printf("mark node #%ld as deleted\n", node->id); |
1569 | node->flags |= OSM_FLAG_DELETED; |
1570 | } else { |
1571 | printf("permanently delete node #%ld\n", node->id); |
1572 | |
1573 | /* remove it from the chain */ |
1574 | node_t **cnode = &osm->node; |
1575 | int found = 0; |
1576 | |
1577 | while(*cnode) { |
1578 | if(*cnode == node) { |
1579 | found++; |
1580 | *cnode = (*cnode)->next; |
1581 | |
1582 | osm_node_free(icon, node); |
1583 | } else |
1584 | cnode = &((*cnode)->next); |
1585 | } |
1586 | g_assert(found == 1); |
1587 | } |
1588 | |
1589 | return way_chain; |
1590 | } |
1591 | |
1592 | guint osm_way_number_of_nodes(way_t *way) { |
1593 | guint nodes = 0; |
1594 | node_chain_t *chain = way->node_chain; |
1595 | while(chain) { |
1596 | nodes++; |
1597 | chain = chain->next; |
1598 | } |
1599 | return nodes; |
1600 | } |
1601 | |
1602 | /* return all relations a node is in */ |
1603 | relation_chain_t *osm_node_to_relation(osm_t *osm, node_t *node) { |
1604 | relation_chain_t *rel_chain = NULL, **cur_rel_chain = &rel_chain; |
1605 | |
1606 | relation_t *relation = osm->relation; |
1607 | while(relation) { |
1608 | gboolean is_member = FALSE; |
1609 | |
1610 | member_t *member = relation->member; |
1611 | while(member) { |
1612 | switch(member->object.type) { |
1613 | case NODE: |
1614 | /* nodes are checked directly */ |
1615 | if(member->object.node == node) |
1616 | is_member = TRUE; |
1617 | break; |
1618 | |
1619 | case WAY: { |
1620 | /* ways have to be checked for the nodes they consist of */ |
1621 | node_chain_t *chain = member->object.way->node_chain; |
1622 | while(chain && !is_member) { |
1623 | if(chain->node == node) |
1624 | is_member = TRUE; |
1625 | |
1626 | chain = chain->next; |
1627 | } |
1628 | } break; |
1629 | |
1630 | default: |
1631 | break; |
1632 | } |
1633 | member = member->next; |
1634 | } |
1635 | |
1636 | /* node is a member of this relation, so move it to the member chain */ |
1637 | if(is_member) { |
1638 | *cur_rel_chain = g_new0(relation_chain_t, 1); |
1639 | (*cur_rel_chain)->relation = relation; |
1640 | cur_rel_chain = &((*cur_rel_chain)->next); |
1641 | } |
1642 | |
1643 | relation = relation->next; |
1644 | } |
1645 | |
1646 | return rel_chain; |
1647 | } |
1648 | |
1649 | /* return all relations a way is in */ |
1650 | relation_chain_t *osm_way_to_relation(osm_t *osm, way_t *way) { |
1651 | relation_chain_t *rel_chain = NULL, **cur_rel_chain = &rel_chain; |
1652 | |
1653 | relation_t *relation = osm->relation; |
1654 | while(relation) { |
1655 | gboolean is_member = FALSE; |
1656 | |
1657 | member_t *member = relation->member; |
1658 | while(member) { |
1659 | switch(member->object.type) { |
1660 | case WAY: { |
1661 | /* ways can be check directly */ |
1662 | if(member->object.way == way) |
1663 | is_member = TRUE; |
1664 | } break; |
1665 | |
1666 | default: |
1667 | break; |
1668 | } |
1669 | member = member->next; |
1670 | } |
1671 | |
1672 | /* way is a member of this relation, so move it to the member chain */ |
1673 | if(is_member) { |
1674 | *cur_rel_chain = g_new0(relation_chain_t, 1); |
1675 | (*cur_rel_chain)->relation = relation; |
1676 | cur_rel_chain = &((*cur_rel_chain)->next); |
1677 | } |
1678 | |
1679 | relation = relation->next; |
1680 | } |
1681 | |
1682 | return rel_chain; |
1683 | } |
1684 | |
1685 | /* return all ways a node is in */ |
1686 | way_chain_t *osm_node_to_way(osm_t *osm, node_t *node) { |
1687 | way_chain_t *chain = NULL, **cur_chain = &chain; |
1688 | |
1689 | way_t *way = osm->way; |
1690 | while(way) { |
1691 | gboolean is_member = FALSE; |
1692 | |
1693 | node_chain_t *node_chain = way->node_chain; |
1694 | while(node_chain) { |
1695 | if(node_chain->node == node) |
1696 | is_member = TRUE; |
1697 | |
1698 | node_chain = node_chain->next; |
1699 | } |
1700 | |
1701 | /* node is a member of this relation, so move it to the member chain */ |
1702 | if(is_member) { |
1703 | *cur_chain = g_new0(way_chain_t, 1); |
1704 | (*cur_chain)->way = way; |
1705 | cur_chain = &((*cur_chain)->next); |
1706 | } |
1707 | |
1708 | way = way->next; |
1709 | } |
1710 | |
1711 | return chain; |
1712 | } |
1713 | |
1714 | gboolean osm_position_within_bounds(osm_t *osm, gint x, gint y) { |
1715 | if((x < osm->bounds->min.x) || (x > osm->bounds->max.x)) return FALSE; |
1716 | if((y < osm->bounds->min.y) || (y > osm->bounds->max.y)) return FALSE; |
1717 | return TRUE; |
1718 | } |
1719 | |
1720 | /* remove the given node from all relations. used if the node is to */ |
1721 | /* be deleted */ |
1722 | void osm_node_remove_from_relation(osm_t *osm, node_t *node) { |
1723 | relation_t *relation = osm->relation; |
1724 | printf("removing node #%ld from all relations:\n", node->id); |
1725 | |
1726 | while(relation) { |
1727 | member_t **member = &relation->member; |
1728 | while(*member) { |
1729 | if(((*member)->object.type == NODE) && |
1730 | ((*member)->object.node == node)) { |
1731 | |
1732 | printf(" from relation #%ld\n", relation->id); |
1733 | |
1734 | member_t *cur = *member; |
1735 | *member = (*member)->next; |
1736 | osm_member_free(cur); |
1737 | |
1738 | relation->flags |= OSM_FLAG_DIRTY; |
1739 | } else |
1740 | member = &(*member)->next; |
1741 | } |
1742 | relation = relation->next; |
1743 | } |
1744 | } |
1745 | |
1746 | /* remove the given way from all relations */ |
1747 | void osm_way_remove_from_relation(osm_t *osm, way_t *way) { |
1748 | relation_t *relation = osm->relation; |
1749 | printf("removing way #%ld from all relations:\n", way->id); |
1750 | |
1751 | while(relation) { |
1752 | member_t **member = &relation->member; |
1753 | while(*member) { |
1754 | if(((*member)->object.type == WAY) && |
1755 | ((*member)->object.way == way)) { |
1756 | |
1757 | printf(" from relation #%ld\n", relation->id); |
1758 | |
1759 | member_t *cur = *member; |
1760 | *member = (*member)->next; |
1761 | osm_member_free(cur); |
1762 | |
1763 | relation->flags |= OSM_FLAG_DIRTY; |
1764 | } else |
1765 | member = &(*member)->next; |
1766 | } |
1767 | relation = relation->next; |
1768 | } |
1769 | } |
1770 | |
1771 | relation_t *osm_relation_new(void) { |
1772 | printf("Creating new relation\n"); |
1773 | |
1774 | relation_t *relation = g_new0(relation_t, 1); |
1775 | relation->visible = TRUE; |
1776 | relation->flags = OSM_FLAG_NEW; |
1777 | relation->time = time(NULL); |
1778 | |
1779 | /* add created_by tag */ |
1780 | relation->tag = g_new0(tag_t, 1); |
1781 | relation->tag->key = g_strdup("created_by"); |
1782 | relation->tag->value = g_strdup(PACKAGE " v" VERSION); |
1783 | |
1784 | return relation; |
1785 | } |
1786 | |
1787 | void osm_relation_attach(osm_t *osm, relation_t *relation) { |
1788 | printf("Attaching relation\n"); |
1789 | |
1790 | relation->id = osm_new_relation_id(osm); |
1791 | relation->flags = OSM_FLAG_NEW; |
1792 | |
1793 | /* attach to end of relation list */ |
1794 | relation_t **lrelation = &osm->relation; |
1795 | while(*lrelation) lrelation = &(*lrelation)->next; |
1796 | *lrelation = relation; |
1797 | } |
1798 | |
1799 | |
1800 | void osm_way_delete(osm_t *osm, icon_t **icon, |
1801 | way_t *way, gboolean permanently) { |
1802 | |
1803 | /* new ways aren't stored on the server and are just deleted permanently */ |
1804 | if(way->flags & OSM_FLAG_NEW) { |
1805 | printf("About to delete NEW way #%ld -> force permanent delete\n", |
1806 | way->id); |
1807 | permanently = TRUE; |
1808 | } |
1809 | |
1810 | /* delete all nodes that aren't in other use now */ |
1811 | node_chain_t **chain = &way->node_chain; |
1812 | while(*chain) { |
1813 | |
1814 | (*chain)->node->ways--; |
1815 | printf("checking node #%ld (still used by %d)\n", |
1816 | (*chain)->node->id, (*chain)->node->ways); |
1817 | |
1818 | /* this node must only be part of this way */ |
1819 | if(!(*chain)->node->ways) { |
1820 | /* delete this node, but don't let this actually affect the */ |
1821 | /* associated ways as the only such way is the oen we are currently */ |
1822 | /* deleting */ |
1823 | way_chain_t *way_chain = |
1824 | osm_node_delete(osm, icon, (*chain)->node, FALSE, FALSE); |
1825 | g_assert(way_chain); |
1826 | while(way_chain) { |
1827 | way_chain_t *way_next = way_chain->next; |
1828 | g_assert(way_chain->way == way); |
1829 | g_free(way_chain); |
1830 | way_chain = way_next; |
1831 | } |
1832 | } |
1833 | |
1834 | node_chain_t *cur = (*chain); |
1835 | *chain = cur->next; |
1836 | g_free(cur); |
1837 | } |
1838 | way->node_chain = NULL; |
1839 | |
1840 | if(!permanently) { |
1841 | printf("mark way #%ld as deleted\n", way->id); |
1842 | way->flags |= OSM_FLAG_DELETED; |
1843 | } else { |
1844 | printf("permanently delete way #%ld\n", way->id); |
1845 | |
1846 | /* remove it from the chain */ |
1847 | way_t **cway = &osm->way; |
1848 | int found = 0; |
1849 | |
1850 | while(*cway) { |
1851 | if(*cway == way) { |
1852 | found++; |
1853 | *cway = (*cway)->next; |
1854 | |
1855 | osm_way_free(way); |
1856 | } else |
1857 | cway = &((*cway)->next); |
1858 | } |
1859 | g_assert(found == 1); |
1860 | } |
1861 | } |
1862 | |
1863 | void osm_relation_delete(osm_t *osm, relation_t *relation, |
1864 | gboolean permanently) { |
1865 | |
1866 | /* new relations aren't stored on the server and are just */ |
1867 | /* deleted permanently */ |
1868 | if(relation->flags & OSM_FLAG_NEW) { |
1869 | printf("About to delete NEW relation #%ld -> force permanent delete\n", |
1870 | relation->id); |
1871 | permanently = TRUE; |
1872 | } |
1873 | |
1874 | /* the deletion of a relation doesn't affect the members as they */ |
1875 | /* don't have any reference to the relation they are part of */ |
1876 | |
1877 | if(!permanently) { |
1878 | printf("mark relation #%ld as deleted\n", relation->id); |
1879 | relation->flags |= OSM_FLAG_DELETED; |
1880 | } else { |
1881 | printf("permanently delete relation #%ld\n", relation->id); |
1882 | |
1883 | /* remove it from the chain */ |
1884 | relation_t **crelation = &osm->relation; |
1885 | int found = 0; |
1886 | |
1887 | while(*crelation) { |
1888 | if(*crelation == relation) { |
1889 | found++; |
1890 | *crelation = (*crelation)->next; |
1891 | |
1892 | osm_relation_free(relation); |
1893 | } else |
1894 | crelation = &((*crelation)->next); |
1895 | } |
1896 | g_assert(found == 1); |
1897 | } |
1898 | } |
1899 | |
1900 | void osm_way_reverse(way_t *way) { |
1901 | node_chain_t *new = NULL; |
1902 | |
1903 | /* walk old chain first to last */ |
1904 | node_chain_t *old = way->node_chain; |
1905 | while(old) { |
1906 | node_chain_t *next = old->next; |
1907 | |
1908 | /* and prepend each node to the new chain */ |
1909 | old->next = new; |
1910 | new = old; |
1911 | |
1912 | old = next; |
1913 | } |
1914 | |
1915 | way->node_chain = new; |
1916 | } |
1917 | |
1918 | static const char *DS_ONEWAY_FWD = "yes"; |
1919 | static const char *DS_ONEWAY_REV = "-1"; |
1920 | static const char *DS_LEFT_SUFFIX = ":left"; |
1921 | static const char *DS_RIGHT_SUFFIX = ":right"; |
1922 | |
1923 | /* Reverse direction-sensitive tags like "oneway". Marks the way as dirty if |
1924 | * anything is changed, and returns the number of flipped tags. */ |
1925 | |
1926 | guint |
1927 | osm_way_reverse_direction_sensitive_tags (way_t *way) { |
1928 | tag_t *tag = way->tag; |
1929 | guint n_tags_altered = 0; |
1930 | while (tag != NULL) { |
1931 | char *lc_key = g_ascii_strdown(tag->key, -1); |
1932 | char *lc_value = g_ascii_strdown(tag->value, -1); |
1933 | |
1934 | if (strcmp(lc_key, "oneway") == 0) { |
1935 | // oneway={yes/true/1/-1} is unusual. |
1936 | // Favour "yes" and "-1". |
1937 | if ((strcmp(lc_value, DS_ONEWAY_FWD) == 0) || |
1938 | (strcmp(lc_value, "true") == 0) || |
1939 | (strcmp(lc_value, "1") == 0)) { |
1940 | g_free(tag->value); |
1941 | tag->value = g_strdup(DS_ONEWAY_REV); |
1942 | n_tags_altered++; |
1943 | } |
1944 | else if (strcmp(lc_value, DS_ONEWAY_REV) == 0) { |
1945 | g_free(tag->value); |
1946 | tag->value = g_strdup(DS_ONEWAY_FWD); |
1947 | n_tags_altered++; |
1948 | } |
1949 | else { |
1950 | printf("warning: unknown tag: %s=%s\n", tag->key, tag->value); |
1951 | } |
1952 | } |
1953 | |
1954 | // :left and :right suffixes |
1955 | else if (g_str_has_suffix(lc_key, DS_LEFT_SUFFIX)) { |
1956 | char *key_old = tag->key; |
1957 | char *lastcolon = rindex(key_old, ':'); |
1958 | g_assert(lastcolon != NULL); |
1959 | *lastcolon = '\000'; |
1960 | tag->key = g_strconcat(key_old, DS_RIGHT_SUFFIX, NULL); |
1961 | *lastcolon = ':'; |
1962 | g_free(key_old); |
1963 | n_tags_altered++; |
1964 | } |
1965 | else if (g_str_has_suffix(lc_key, DS_RIGHT_SUFFIX)) { |
1966 | char *key_old = tag->key; |
1967 | char *lastcolon = rindex(key_old, ':'); |
1968 | g_assert(lastcolon != NULL); |
1969 | *lastcolon = '\000'; |
1970 | tag->key = g_strconcat(key_old, DS_LEFT_SUFFIX, NULL); |
1971 | *lastcolon = ':'; |
1972 | g_free(key_old); |
1973 | n_tags_altered++; |
1974 | } |
1975 | |
1976 | g_free(lc_key); |
1977 | g_free(lc_value); |
1978 | tag = tag->next; |
1979 | } |
1980 | if (n_tags_altered > 0) { |
1981 | way->flags |= OSM_FLAG_DIRTY; |
1982 | } |
1983 | return n_tags_altered; |
1984 | } |
1985 | |
1986 | /* Reverse a way's role within relations where the role is direction-sensitive. |
1987 | * Returns the number of roles flipped, and marks any relations changed as |
1988 | * dirty. */ |
1989 | |
1990 | static const char *DS_ROUTE_FORWARD = "forward"; |
1991 | static const char *DS_ROUTE_REVERSE = "reverse"; |
1992 | |
1993 | guint |
1994 | osm_way_reverse_direction_sensitive_roles(osm_t *osm, way_t *way) { |
1995 | relation_chain_t *rel_chain0, *rel_chain; |
1996 | rel_chain0 = rel_chain = osm_way_to_relation(osm, way); |
1997 | guint n_roles_flipped = 0; |
1998 | |
1999 | for (; rel_chain != NULL; rel_chain = rel_chain->next) { |
2000 | char *type = osm_tag_get_by_key(rel_chain->relation->tag, "type"); |
2001 | |
2002 | // Route relations; http://wiki.openstreetmap.org/wiki/Relation:route |
2003 | if (strcasecmp(type, "route") == 0) { |
2004 | |
2005 | // First find the member corresponding to our way: |
2006 | member_t *member = rel_chain->relation->member; |
2007 | for (; member != NULL; member = member->next) { |
2008 | if (member->object.type == WAY) { |
2009 | if (member->object.way == way) |
2010 | break; |
2011 | } |
2012 | if (member->object.type == WAY_ID) { |
2013 | if (member->object.id == way->id) |
2014 | break; |
2015 | } |
2016 | } |
2017 | g_assert(member); // osm_way_to_relation() broken? |
2018 | |
2019 | // Then flip its role if it's one of the direction-sensitive ones |
2020 | if (member->role == NULL) { |
2021 | printf("null role in route relation -> ignore\n"); |
2022 | } |
2023 | else if (strcasecmp(member->role, DS_ROUTE_FORWARD) == 0) { |
2024 | g_free(member->role); |
2025 | member->role = g_strdup(DS_ROUTE_REVERSE); |
2026 | rel_chain->relation->flags |= OSM_FLAG_DIRTY; |
2027 | ++n_roles_flipped; |
2028 | } |
2029 | else if (strcasecmp(member->role, DS_ROUTE_REVERSE) == 0) { |
2030 | g_free(member->role); |
2031 | member->role = g_strdup(DS_ROUTE_FORWARD); |
2032 | rel_chain->relation->flags |= OSM_FLAG_DIRTY; |
2033 | ++n_roles_flipped; |
2034 | } |
2035 | |
2036 | // TODO: what about numbered stops? Guess we ignore them; there's no |
2037 | // consensus about whether they should be placed on the way or to one side |
2038 | // of it. |
2039 | |
2040 | }//if-route |
2041 | |
2042 | |
2043 | } |
2044 | if (rel_chain0) { |
2045 | g_free(rel_chain0); |
2046 | } |
2047 | return n_roles_flipped; |
2048 | } |
2049 | |
2050 | node_t *osm_way_get_first_node(way_t *way) { |
2051 | node_chain_t *chain = way->node_chain; |
2052 | if(!chain) return NULL; |
2053 | return chain->node; |
2054 | } |
2055 | |
2056 | node_t *osm_way_get_last_node(way_t *way) { |
2057 | node_chain_t *chain = way->node_chain; |
2058 | |
2059 | while(chain && chain->next) chain=chain->next; |
2060 | |
2061 | if(!chain) return NULL; |
2062 | |
2063 | return chain->node; |
2064 | } |
2065 | |
2066 | void osm_way_rotate(way_t *way, gint offset) { |
2067 | if(!offset) return; |
2068 | |
2069 | /* needs at least two nodes to work properly */ |
2070 | g_assert(way->node_chain); |
2071 | g_assert(way->node_chain->next); |
2072 | |
2073 | while(offset--) { |
2074 | node_chain_t *chain = way->node_chain; |
2075 | chain->node->ways--; // reduce way count of old start/end node |
2076 | |
2077 | /* move all nodes ahead one chain element ... */ |
2078 | while(chain->next) { |
2079 | chain->node = chain->next->node; |
2080 | chain = chain->next; |
2081 | } |
2082 | |
2083 | /* ... and make last one same as first one */ |
2084 | chain->node = way->node_chain->node; |
2085 | chain->node->ways++; // increase way count of new start/end node |
2086 | } |
2087 | } |
2088 | |
2089 | tag_t *osm_tags_copy(tag_t *src_tag, gboolean update_creator) { |
2090 | tag_t *new_tags = NULL; |
2091 | tag_t **dst_tag = &new_tags; |
2092 | |
2093 | while(src_tag) { |
2094 | *dst_tag = g_new0(tag_t, 1); |
2095 | (*dst_tag)->key = g_strdup(src_tag->key); |
2096 | if(update_creator && (strcasecmp(src_tag->key, "created_by") == 0)) |
2097 | (*dst_tag)->value = g_strdup(PACKAGE " v" VERSION); |
2098 | else |
2099 | (*dst_tag)->value = g_strdup(src_tag->value); |
2100 | |
2101 | dst_tag = &(*dst_tag)->next; |
2102 | src_tag = src_tag->next; |
2103 | } |
2104 | |
2105 | return new_tags; |
2106 | } |
2107 | |
2108 | /* return plain text of type */ |
2109 | char *osm_object_type_string(object_t *object) { |
2110 | const struct { type_t type; char *name; } types[] = { |
2111 | { ILLEGAL, "illegal" }, |
2112 | { NODE, "node" }, |
2113 | { WAY, "way" }, |
2114 | { RELATION, "relation" }, |
2115 | { NODE_ID, "node id" }, |
2116 | { WAY_ID, "way id" }, |
2117 | { RELATION_ID, "relation id" }, |
2118 | { 0, NULL } |
2119 | }; |
2120 | |
2121 | int i; |
2122 | for(i=0;types[i].name;i++) |
2123 | if(object->type == types[i].type) |
2124 | return types[i].name; |
2125 | |
2126 | return NULL; |
2127 | } |
2128 | |
2129 | char *osm_object_string(object_t *object) { |
2130 | char *type_str = osm_object_type_string(object); |
2131 | |
2132 | if(!object) |
2133 | return g_strdup_printf("%s #<invalid>", type_str); |
2134 | |
2135 | switch(object->type) { |
2136 | case ILLEGAL: |
2137 | return g_strdup_printf("%s #<unspec>", type_str); |
2138 | break; |
2139 | case NODE: |
2140 | return g_strdup_printf("%s #%ld", type_str, object->node->id); |
2141 | break; |
2142 | case WAY: |
2143 | return g_strdup_printf("%s #%ld", type_str, object->way->id); |
2144 | break; |
2145 | case RELATION: |
2146 | return g_strdup_printf("%s #%ld", type_str, object->relation->id); |
2147 | break; |
2148 | case NODE_ID: |
2149 | case WAY_ID: |
2150 | case RELATION_ID: |
2151 | return g_strdup_printf("%s #%ld", type_str, object->id); |
2152 | break; |
2153 | } |
2154 | return NULL; |
2155 | } |
2156 | |
2157 | char *osm_object_id_string(object_t *object) { |
2158 | if(!object) return NULL; |
2159 | |
2160 | switch(object->type) { |
2161 | case ILLEGAL: |
2162 | return NULL; |
2163 | break; |
2164 | case NODE: |
2165 | return g_strdup_printf("#%ld", object->node->id); |
2166 | break; |
2167 | case WAY: |
2168 | return g_strdup_printf("#%ld", object->way->id); |
2169 | break; |
2170 | case RELATION: |
2171 | return g_strdup_printf("#%ld", object->relation->id); |
2172 | break; |
2173 | case NODE_ID: |
2174 | case WAY_ID: |
2175 | case RELATION_ID: |
2176 | return g_strdup_printf("#%ld", object->id); |
2177 | break; |
2178 | } |
2179 | return NULL; |
2180 | } |
2181 | |
2182 | tag_t *osm_object_get_tags(object_t *object) { |
2183 | if(!object) return NULL; |
2184 | |
2185 | switch(object->type) { |
2186 | case ILLEGAL: |
2187 | return NULL; |
2188 | break; |
2189 | case NODE: |
2190 | return object->node->tag; |
2191 | break; |
2192 | case WAY: |
2193 | return object->way->tag; |
2194 | break; |
2195 | case RELATION: |
2196 | return object->relation->tag; |
2197 | break; |
2198 | case NODE_ID: |
2199 | case WAY_ID: |
2200 | case RELATION_ID: |
2201 | return NULL; |
2202 | break; |
2203 | } |
2204 | return NULL; |
2205 | } |
2206 | |
2207 | |
2208 | gint osm_relation_members_num(relation_t *relation) { |
2209 | gint num = 0; |
2210 | member_t *member = relation->member; |
2211 | while(member) { |
2212 | num++; |
2213 | member = member->next; |
2214 | } |
2215 | return num; |
2216 | } |
2217 | |
2218 | void osm_object_set_flags(object_t *object, int set, int clr) { |
2219 | |
2220 | switch(object->type) { |
2221 | case NODE: |
2222 | object->node->flags |= set; |
2223 | object->node->flags &= ~clr; |
2224 | break; |
2225 | |
2226 | case WAY: |
2227 | object->way->flags |= set; |
2228 | object->way->flags &= ~clr; |
2229 | break; |
2230 | |
2231 | case RELATION: |
2232 | object->relation->flags |= set; |
2233 | object->relation->flags &= ~clr; |
2234 | break; |
2235 | |
2236 | default: |
2237 | g_assert(0); |
2238 | break; |
2239 | } |
2240 | } |
2241 | |
2242 | // vim:et:ts=8:sw=2:sts=2:ai |