Parent Directory | Revision Log
Global relation handling
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 | /* these defines select one of three possible xml parsers */ |
21 | /* this is in fact selected depending on the plattform in the Makefile */ |
22 | // #define OSM_DOM_PARSER |
23 | // #define OSM_STREAM_PARSER |
24 | |
25 | #include <stdio.h> |
26 | #include <stdlib.h> |
27 | #include <string.h> |
28 | #include <math.h> |
29 | |
30 | #define __USE_XOPEN |
31 | #include <time.h> |
32 | |
33 | #include <libxml/parser.h> |
34 | #include <libxml/tree.h> |
35 | |
36 | #include "appdata.h" |
37 | #include "banner.h" |
38 | |
39 | #ifndef LIBXML_TREE_ENABLED |
40 | #error "Tree not enabled in libxml" |
41 | #endif |
42 | |
43 | /* determine where a node/way/relation read from the osm file */ |
44 | /* is inserted into the internal database */ |
45 | // #define OSM_SORT_ID |
46 | #define OSM_SORT_LAST |
47 | // #define OSM_SORT_FIRST |
48 | |
49 | /* ------------------------- bounds handling --------------------- */ |
50 | |
51 | static void osm_bounds_free(bounds_t *bounds) { |
52 | free(bounds); |
53 | } |
54 | |
55 | static void osm_bounds_dump(bounds_t *bounds) { |
56 | printf("\nBounds: %f->%f %f->%f\n", |
57 | bounds->ll_min.lat, bounds->ll_max.lat, |
58 | bounds->ll_min.lon, bounds->ll_max.lon); |
59 | } |
60 | |
61 | #ifdef OSM_DOM_PARSER |
62 | static bounds_t *osm_parse_osm_bounds(osm_t *osm, |
63 | xmlDocPtr doc, xmlNode *a_node) { |
64 | char *prop; |
65 | |
66 | if(osm->bounds) { |
67 | errorf(NULL, "Doubly defined bounds"); |
68 | return NULL; |
69 | } |
70 | |
71 | bounds_t *bounds = g_new0(bounds_t, 1); |
72 | |
73 | bounds->ll_min.lat = bounds->ll_min.lon = NAN; |
74 | bounds->ll_max.lat = bounds->ll_max.lon = NAN; |
75 | |
76 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"minlat"))) { |
77 | bounds->ll_min.lat = g_ascii_strtod(prop, NULL); |
78 | xmlFree(prop); |
79 | } |
80 | |
81 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"maxlat"))) { |
82 | bounds->ll_max.lat = g_ascii_strtod(prop, NULL); |
83 | xmlFree(prop); |
84 | } |
85 | |
86 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"minlon"))) { |
87 | bounds->ll_min.lon = g_ascii_strtod(prop, NULL); |
88 | xmlFree(prop); |
89 | } |
90 | |
91 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"maxlon"))) { |
92 | bounds->ll_max.lon = g_ascii_strtod(prop, NULL); |
93 | xmlFree(prop); |
94 | } |
95 | |
96 | if(isnan(bounds->ll_min.lat) || isnan(bounds->ll_min.lon) || |
97 | isnan(bounds->ll_max.lat) || isnan(bounds->ll_max.lon)) { |
98 | errorf(NULL, "Invalid coordinate in bounds (%f/%f/%f/%f)", |
99 | bounds->ll_min.lat, bounds->ll_min.lon, |
100 | bounds->ll_max.lat, bounds->ll_max.lon); |
101 | |
102 | osm_bounds_free(bounds); |
103 | return NULL; |
104 | } |
105 | |
106 | |
107 | /* calculate map zone which will be used as a reference for all */ |
108 | /* drawing/projection later on */ |
109 | pos_t center = { (bounds->ll_max.lat + bounds->ll_min.lat)/2, |
110 | (bounds->ll_max.lon + bounds->ll_min.lon)/2 }; |
111 | |
112 | pos2lpos_center(¢er, &bounds->center); |
113 | |
114 | /* the scale is needed to accomodate for "streching" */ |
115 | /* by the mercartor projection */ |
116 | bounds->scale = cos(DEG2RAD(center.lat)); |
117 | |
118 | pos2lpos_center(&bounds->ll_min, &bounds->min); |
119 | bounds->min.x -= bounds->center.x; |
120 | bounds->min.y -= bounds->center.y; |
121 | bounds->min.x *= bounds->scale; |
122 | bounds->min.y *= bounds->scale; |
123 | |
124 | pos2lpos_center(&bounds->ll_max, &bounds->max); |
125 | bounds->max.x -= bounds->center.x; |
126 | bounds->max.y -= bounds->center.y; |
127 | bounds->max.x *= bounds->scale; |
128 | bounds->max.y *= bounds->scale; |
129 | |
130 | return bounds; |
131 | } |
132 | #endif |
133 | |
134 | /* ------------------------- user handling --------------------- */ |
135 | |
136 | void osm_users_free(user_t *user) { |
137 | while(user) { |
138 | user_t *next = user->next; |
139 | |
140 | if(user->name) g_free(user->name); |
141 | g_free(user); |
142 | |
143 | user = next; |
144 | } |
145 | } |
146 | |
147 | void osm_users_dump(user_t *user) { |
148 | printf("\nUser list:\n"); |
149 | while(user) { |
150 | printf("Name: %s\n", user->name); |
151 | user = user->next; |
152 | } |
153 | } |
154 | |
155 | static user_t *osm_user(osm_t *osm, char *name) { |
156 | if(!name) return NULL; |
157 | |
158 | /* search through user list */ |
159 | user_t **user = &osm->user; |
160 | while(*user && strcasecmp((*user)->name, name) < 0) |
161 | user = &(*user)->next; |
162 | |
163 | /* end of list or inexact match? create new user entry! */ |
164 | if(!*user || strcasecmp((*user)->name, name)) { |
165 | user_t *new = g_new0(user_t, 1); |
166 | new->name = g_strdup(name); |
167 | new->next = *user; |
168 | *user = new; |
169 | |
170 | return new; |
171 | } |
172 | |
173 | return *user; |
174 | } |
175 | |
176 | static |
177 | time_t convert_iso8601(const char *str) { |
178 | if(!str) return 0; |
179 | |
180 | tzset(); |
181 | |
182 | struct tm ctime; |
183 | memset(&ctime, 0, sizeof(struct tm)); |
184 | strptime(str, "%FT%T%z", &ctime); |
185 | |
186 | return mktime(&ctime) - timezone; |
187 | } |
188 | |
189 | /* -------------------- tag handling ----------------------- */ |
190 | |
191 | void osm_tag_free(tag_t *tag) { |
192 | if(tag->key) g_free(tag->key); |
193 | if(tag->value) g_free(tag->value); |
194 | g_free(tag); |
195 | } |
196 | |
197 | void osm_tags_free(tag_t *tag) { |
198 | while(tag) { |
199 | tag_t *next = tag->next; |
200 | osm_tag_free(tag); |
201 | tag = next; |
202 | } |
203 | } |
204 | |
205 | static void osm_tags_dump(tag_t *tag) { |
206 | while(tag) { |
207 | printf("Key/Val: %s/%s\n", tag->key, tag->value); |
208 | tag = tag->next; |
209 | } |
210 | } |
211 | |
212 | tag_t *osm_parse_osm_tag(osm_t *osm, xmlDocPtr doc, xmlNode *a_node) { |
213 | xmlNode *cur_node = NULL; |
214 | |
215 | /* allocate a new tag structure */ |
216 | tag_t *tag = g_new0(tag_t, 1); |
217 | |
218 | char *prop; |
219 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"k"))) { |
220 | if(strlen(prop) > 0) tag->key = g_strdup(prop); |
221 | xmlFree(prop); |
222 | } |
223 | |
224 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"v"))) { |
225 | if(strlen(prop) > 0) tag->value = g_strdup(prop); |
226 | xmlFree(prop); |
227 | } |
228 | |
229 | if(!tag->key || !tag->value) { |
230 | printf("incomplete tag key/value %s/%s\n", tag->key, tag->value); |
231 | osm_tags_free(tag); |
232 | return NULL; |
233 | } |
234 | |
235 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) |
236 | if (cur_node->type == XML_ELEMENT_NODE) |
237 | printf("found unhandled osm/node/tag/%s\n", cur_node->name); |
238 | |
239 | return tag; |
240 | } |
241 | |
242 | gboolean osm_is_creator_tag(tag_t *tag) { |
243 | if(strcasecmp(tag->key, "created_by") == 0) return TRUE; |
244 | if(strcasecmp(tag->key, "source") == 0) return TRUE; |
245 | |
246 | return FALSE; |
247 | } |
248 | |
249 | gboolean osm_tag_key_and_value_present(tag_t *haystack, tag_t *tag) { |
250 | while(haystack) { |
251 | if((strcasecmp(haystack->key, tag->key) == 0) && |
252 | (strcasecmp(haystack->value, tag->value) == 0)) |
253 | return TRUE; |
254 | |
255 | haystack = haystack->next; |
256 | } |
257 | return FALSE; |
258 | } |
259 | |
260 | gboolean osm_tag_key_other_value_present(tag_t *haystack, tag_t *tag) { |
261 | while(haystack) { |
262 | if((strcasecmp(haystack->key, tag->key) == 0) && |
263 | (strcasecmp(haystack->value, tag->value) != 0)) |
264 | return TRUE; |
265 | |
266 | haystack = haystack->next; |
267 | } |
268 | return FALSE; |
269 | } |
270 | |
271 | gboolean osm_way_ends_with_node(way_t *way, node_t *node) { |
272 | /* and deleted way may even not contain any nodes at all */ |
273 | /* so ignore it */ |
274 | if(way->flags & OSM_FLAG_DELETED) |
275 | return FALSE; |
276 | |
277 | /* any valid way must have at least two nodes */ |
278 | g_assert(way->node_chain && way->node_chain->next); |
279 | |
280 | node_chain_t *chain = way->node_chain; |
281 | if(chain->node == node) return TRUE; |
282 | |
283 | while(chain->next) chain = chain->next; |
284 | if(chain->node == node) return TRUE; |
285 | |
286 | return FALSE; |
287 | } |
288 | |
289 | /* ------------------- node handling ------------------- */ |
290 | |
291 | void osm_node_free(icon_t **icon, node_t *node) { |
292 | if(node->icon_buf) |
293 | icon_free(icon, node->icon_buf); |
294 | |
295 | /* there must not be anything left in this chain */ |
296 | g_assert(!node->map_item_chain); |
297 | |
298 | osm_tags_free(node->tag); |
299 | g_free(node); |
300 | } |
301 | |
302 | static void osm_nodes_free(icon_t **icon, node_t *node) { |
303 | while(node) { |
304 | node_t *next = node->next; |
305 | osm_node_free(icon, node); |
306 | node = next; |
307 | } |
308 | } |
309 | |
310 | void osm_node_dump(node_t *node) { |
311 | char buf[64]; |
312 | struct tm tm; |
313 | |
314 | printf("Id: %lu\n", node->id); |
315 | printf("User: %s\n", node->user?node->user->name:"<unspecified>"); |
316 | printf("Visible: %s\n", node->visible?"yes":"no"); |
317 | |
318 | localtime_r(&node->time, &tm); |
319 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
320 | printf("Time: %s\n", buf); |
321 | osm_tags_dump(node->tag); |
322 | } |
323 | |
324 | void osm_nodes_dump(node_t *node) { |
325 | printf("\nNode list:\n"); |
326 | while(node) { |
327 | osm_node_dump(node); |
328 | printf("\n"); |
329 | node = node->next; |
330 | } |
331 | } |
332 | |
333 | #ifdef OSM_DOM_PARSER |
334 | static node_t *osm_parse_osm_node(osm_t *osm, |
335 | xmlDocPtr doc, xmlNode *a_node) { |
336 | xmlNode *cur_node = NULL; |
337 | |
338 | /* allocate a new node structure */ |
339 | node_t *node = g_new0(node_t, 1); |
340 | node->pos.lat = node->pos.lon = NAN; |
341 | |
342 | char *prop; |
343 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"id"))) { |
344 | node->id = strtoul(prop, NULL, 10); |
345 | xmlFree(prop); |
346 | } |
347 | |
348 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"lat"))) { |
349 | node->pos.lat = g_ascii_strtod(prop, NULL); |
350 | xmlFree(prop); |
351 | } |
352 | |
353 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"lon"))) { |
354 | node->pos.lon = g_ascii_strtod(prop, NULL); |
355 | xmlFree(prop); |
356 | } |
357 | |
358 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"user"))) { |
359 | node->user = osm_user(osm, prop); |
360 | xmlFree(prop); |
361 | } |
362 | |
363 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"visible"))) { |
364 | node->visible = (strcasecmp(prop, "true") == 0); |
365 | xmlFree(prop); |
366 | } |
367 | |
368 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"timestamp"))) { |
369 | node->time = convert_iso8601(prop); |
370 | xmlFree(prop); |
371 | } |
372 | |
373 | /* append node to end of hash table if present */ |
374 | if(osm->node_hash) { |
375 | hash_item_t **item = &osm->node_hash->hash[ID2HASH(node->id)]; |
376 | while(*item) item = &(*item)->next; |
377 | |
378 | *item = g_new0(hash_item_t, 1); |
379 | (*item)->data.node = node; |
380 | } |
381 | |
382 | /* scan for tags and attach a list of tags */ |
383 | tag_t **tag = &node->tag; |
384 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
385 | if (cur_node->type == XML_ELEMENT_NODE) { |
386 | if(strcasecmp((char*)cur_node->name, "tag") == 0) { |
387 | /* attach tag to node */ |
388 | *tag = osm_parse_osm_tag(osm, doc, cur_node); |
389 | if(*tag) tag = &((*tag)->next); |
390 | } else |
391 | printf("found unhandled osm/node/%s\n", cur_node->name); |
392 | } |
393 | } |
394 | |
395 | pos2lpos(osm->bounds, &node->pos, &node->lpos); |
396 | |
397 | return node; |
398 | } |
399 | #endif |
400 | |
401 | /* ------------------- way handling ------------------- */ |
402 | |
403 | void osm_node_chain_free(node_chain_t *node_chain) { |
404 | while(node_chain) { |
405 | g_assert(node_chain->node->ways); |
406 | |
407 | node_chain_t *next = node_chain->next; |
408 | node_chain->node->ways--; |
409 | g_free(node_chain); |
410 | node_chain = next; |
411 | } |
412 | } |
413 | |
414 | void osm_way_free(way_t *way) { |
415 | // printf("freeing way #%ld\n", way->id); |
416 | |
417 | osm_node_chain_free(way->node_chain); |
418 | osm_tags_free(way->tag); |
419 | |
420 | /* there must not be anything left in this chain */ |
421 | g_assert(!way->map_item_chain); |
422 | |
423 | g_free(way); |
424 | } |
425 | |
426 | static void osm_ways_free(way_t *way) { |
427 | while(way) { |
428 | way_t *next = way->next; |
429 | osm_way_free(way); |
430 | way = next; |
431 | } |
432 | } |
433 | |
434 | void osm_way_append_node(way_t *way, node_t *node) { |
435 | node_chain_t **node_chain = &way->node_chain; |
436 | |
437 | while(*node_chain) |
438 | node_chain = &((*node_chain)->next); |
439 | |
440 | *node_chain = g_new0(node_chain_t, 1); |
441 | (*node_chain)->node = node; |
442 | |
443 | node->ways++; |
444 | } |
445 | |
446 | int osm_node_chain_length(node_chain_t *node_chain) { |
447 | int cnt = 0; |
448 | while(node_chain) { |
449 | cnt++; |
450 | node_chain = node_chain->next; |
451 | } |
452 | |
453 | return cnt; |
454 | } |
455 | |
456 | void osm_way_dump(way_t *way) { |
457 | char buf[64]; |
458 | struct tm tm; |
459 | |
460 | printf("Id: %lu\n", way->id); |
461 | printf("User: %s\n", way->user?way->user->name:"<unspecified>"); |
462 | printf("Visible: %s\n", way->visible?"yes":"no"); |
463 | node_chain_t *node_chain = way->node_chain; |
464 | while(node_chain) { |
465 | printf(" Node: %lu\n", node_chain->node->id); |
466 | node_chain = node_chain->next; |
467 | } |
468 | |
469 | localtime_r(&way->time, &tm); |
470 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
471 | printf("Time: %s\n", buf); |
472 | osm_tags_dump(way->tag); |
473 | } |
474 | |
475 | void osm_ways_dump(way_t *way) { |
476 | printf("\nWay list:\n"); |
477 | while(way) { |
478 | osm_way_dump(way); |
479 | printf("\n"); |
480 | way = way->next; |
481 | } |
482 | } |
483 | |
484 | node_chain_t *osm_parse_osm_way_nd(osm_t *osm, |
485 | xmlDocPtr doc, xmlNode *a_node) { |
486 | char *prop; |
487 | |
488 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"ref"))) { |
489 | item_id_t id = strtoul(prop, NULL, 10); |
490 | node_chain_t *node_chain = g_new0(node_chain_t, 1); |
491 | |
492 | /* search matching node */ |
493 | node_chain->node = osm_get_node_by_id(osm, id); |
494 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
495 | else node_chain->node->ways++; |
496 | |
497 | xmlFree(prop); |
498 | |
499 | return node_chain; |
500 | } |
501 | |
502 | return NULL; |
503 | } |
504 | |
505 | #ifdef OSM_DOM_PARSER |
506 | static way_t *osm_parse_osm_way(osm_t *osm, |
507 | xmlDocPtr doc, xmlNode *a_node) { |
508 | xmlNode *cur_node = NULL; |
509 | |
510 | /* allocate a new way structure */ |
511 | way_t *way = g_new0(way_t, 1); |
512 | |
513 | char *prop; |
514 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"id"))) { |
515 | way->id = strtoul(prop, NULL, 10); |
516 | xmlFree(prop); |
517 | } |
518 | |
519 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"user"))) { |
520 | way->user = osm_user(osm, prop); |
521 | xmlFree(prop); |
522 | } |
523 | |
524 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"visible"))) { |
525 | way->visible = (strcasecmp(prop, "true") == 0); |
526 | xmlFree(prop); |
527 | } |
528 | |
529 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"timestamp"))) { |
530 | way->time = convert_iso8601(prop); |
531 | xmlFree(prop); |
532 | } |
533 | |
534 | /* append way to end of hash table if present */ |
535 | if(osm->way_hash) { |
536 | hash_item_t **item = &osm->way_hash->hash[ID2HASH(way->id)]; |
537 | while(*item) item = &(*item)->next; |
538 | |
539 | *item = g_new0(hash_item_t, 1); |
540 | (*item)->data.way = way; |
541 | } |
542 | |
543 | /* scan for tags/nodes and attach their lists */ |
544 | tag_t **tag = &way->tag; |
545 | node_chain_t **node_chain = &way->node_chain; |
546 | |
547 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
548 | if (cur_node->type == XML_ELEMENT_NODE) { |
549 | if(strcasecmp((char*)cur_node->name, "tag") == 0) { |
550 | /* attach tag to node */ |
551 | *tag = osm_parse_osm_tag(osm, doc, cur_node); |
552 | if(*tag) tag = &((*tag)->next); |
553 | } else if(strcasecmp((char*)cur_node->name, "nd") == 0) { |
554 | *node_chain = osm_parse_osm_way_nd(osm, doc, cur_node); |
555 | if(*node_chain) |
556 | node_chain = &((*node_chain)->next); |
557 | } else |
558 | printf("found unhandled osm/node/%s\n", cur_node->name); |
559 | } |
560 | } |
561 | |
562 | return way; |
563 | } |
564 | #endif |
565 | |
566 | /* ------------------- relation handling ------------------- */ |
567 | |
568 | void osm_member_free(member_t *member) { |
569 | if(member->role) g_free(member->role); |
570 | g_free(member); |
571 | } |
572 | |
573 | void osm_members_free(member_t *member) { |
574 | while(member) { |
575 | member_t *next = member->next; |
576 | osm_member_free(member); |
577 | member = next; |
578 | } |
579 | } |
580 | |
581 | void osm_relation_free(relation_t *relation) { |
582 | osm_tags_free(relation->tag); |
583 | osm_members_free(relation->member); |
584 | |
585 | g_free(relation); |
586 | } |
587 | |
588 | static void osm_relations_free(relation_t *relation) { |
589 | while(relation) { |
590 | relation_t *next = relation->next; |
591 | osm_relation_free(relation); |
592 | relation = next; |
593 | } |
594 | } |
595 | |
596 | void osm_relations_dump(relation_t *relation) { |
597 | printf("\nRelation list:\n"); |
598 | while(relation) { |
599 | char buf[64]; |
600 | struct tm tm; |
601 | |
602 | printf("Id: %lu\n", relation->id); |
603 | printf("User: %s\n", |
604 | relation->user?relation->user->name:"<unspecified>"); |
605 | printf("Visible: %s\n", relation->visible?"yes":"no"); |
606 | |
607 | member_t *member = relation->member; |
608 | while(member) { |
609 | switch(member->type) { |
610 | case ILLEGAL: |
611 | case NODE_ID: |
612 | case WAY_ID: |
613 | case RELATION_ID: |
614 | break; |
615 | |
616 | case NODE: |
617 | if(member->node) |
618 | printf(" Member: Node, id = %lu, role = %s\n", |
619 | member->node->id, member->role); |
620 | break; |
621 | |
622 | case WAY: |
623 | if(member->way) |
624 | printf(" Member: Way, id = %lu, role = %s\n", |
625 | member->way->id, member->role); |
626 | break; |
627 | |
628 | case RELATION: |
629 | if(member->relation) |
630 | printf(" Member: Relation, id = %lu, role = %s\n", |
631 | member->relation->id, member->role); |
632 | break; |
633 | } |
634 | |
635 | member = member->next; |
636 | } |
637 | |
638 | localtime_r(&relation->time, &tm); |
639 | strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %Z", &tm); |
640 | printf("Time: %s\n", buf); |
641 | osm_tags_dump(relation->tag); |
642 | |
643 | printf("\n"); |
644 | relation = relation->next; |
645 | } |
646 | } |
647 | |
648 | member_t *osm_parse_osm_relation_member(osm_t *osm, |
649 | xmlDocPtr doc, xmlNode *a_node) { |
650 | char *prop; |
651 | member_t *member = g_new0(member_t, 1); |
652 | member->type = ILLEGAL; |
653 | |
654 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"type"))) { |
655 | if(strcasecmp(prop, "way") == 0) member->type = WAY; |
656 | else if(strcasecmp(prop, "node") == 0) member->type = NODE; |
657 | else if(strcasecmp(prop, "relation") == 0) member->type = RELATION; |
658 | xmlFree(prop); |
659 | } |
660 | |
661 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"ref"))) { |
662 | item_id_t id = strtoul(prop, NULL, 10); |
663 | |
664 | switch(member->type) { |
665 | case ILLEGAL: |
666 | printf("Unable to store illegal type\n"); |
667 | break; |
668 | |
669 | case WAY: |
670 | /* search matching way */ |
671 | member->way = osm_get_way_by_id(osm, id); |
672 | if(!member->way) { |
673 | member->type = WAY_ID; |
674 | member->id = id; |
675 | } |
676 | break; |
677 | |
678 | case NODE: |
679 | /* search matching node */ |
680 | member->node = osm_get_node_by_id(osm, id); |
681 | if(!member->node) { |
682 | member->type = NODE_ID; |
683 | member->id = id; |
684 | } |
685 | break; |
686 | |
687 | case RELATION: |
688 | /* search matching relation */ |
689 | member->relation = osm_get_relation_by_id(osm, id); |
690 | if(!member->relation) { |
691 | member->type = NODE_ID; |
692 | member->id = id; |
693 | } |
694 | break; |
695 | |
696 | case WAY_ID: |
697 | case NODE_ID: |
698 | case RELATION_ID: |
699 | break; |
700 | } |
701 | |
702 | xmlFree(prop); |
703 | } |
704 | |
705 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"role"))) { |
706 | if(strlen(prop) > 0) member->role = g_strdup(prop); |
707 | xmlFree(prop); |
708 | } |
709 | |
710 | return member; |
711 | } |
712 | |
713 | #ifdef OSM_DOM_PARSER |
714 | static relation_t *osm_parse_osm_relation(osm_t *osm, |
715 | xmlDocPtr doc, xmlNode *a_node) { |
716 | xmlNode *cur_node = NULL; |
717 | |
718 | /* allocate a new relation structure */ |
719 | relation_t *relation = g_new0(relation_t, 1); |
720 | |
721 | char *prop; |
722 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"id"))) { |
723 | relation->id = strtoul(prop, NULL, 10); |
724 | xmlFree(prop); |
725 | } |
726 | |
727 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"user"))) { |
728 | relation->user = osm_user(osm, prop); |
729 | xmlFree(prop); |
730 | } |
731 | |
732 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"visible"))) { |
733 | relation->visible = (strcasecmp(prop, "true") == 0); |
734 | xmlFree(prop); |
735 | } |
736 | |
737 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"timestamp"))) { |
738 | relation->time = convert_iso8601(prop); |
739 | xmlFree(prop); |
740 | } |
741 | |
742 | /* scan for tags and attach a list of tags */ |
743 | tag_t **tag = &relation->tag; |
744 | member_t **member = &relation->member; |
745 | |
746 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
747 | if (cur_node->type == XML_ELEMENT_NODE) { |
748 | if(strcasecmp((char*)cur_node->name, "tag") == 0) { |
749 | /* attach tag to node */ |
750 | *tag = osm_parse_osm_tag(osm, doc, cur_node); |
751 | if(*tag) tag = &((*tag)->next); |
752 | } else if(strcasecmp((char*)cur_node->name, "member") == 0) { |
753 | *member = osm_parse_osm_relation_member(osm, doc, cur_node); |
754 | if(*member) member = &((*member)->next); |
755 | } else |
756 | printf("found unhandled osm/node/%s\n", cur_node->name); |
757 | } |
758 | } |
759 | |
760 | return relation; |
761 | } |
762 | |
763 | /* ----------------------- generic xml handling -------------------------- */ |
764 | |
765 | /* parse osm entry */ |
766 | static void osm_parse_osm(osm_t *osm, xmlDocPtr doc, xmlNode * a_node) { |
767 | xmlNode *cur_node = NULL; |
768 | |
769 | for (cur_node = a_node->children; cur_node; cur_node = cur_node->next) { |
770 | if (cur_node->type == XML_ELEMENT_NODE) { |
771 | if(strcasecmp((char*)cur_node->name, "bounds") == 0) |
772 | osm->bounds = osm_parse_osm_bounds(osm, doc, cur_node); |
773 | else if(strcasecmp((char*)cur_node->name, "node") == 0) { |
774 | /* parse node and attach it to chain */ |
775 | node_t *new = osm_parse_osm_node(osm, doc, cur_node); |
776 | if(new) { |
777 | node_t **node = &osm->node; |
778 | |
779 | #ifdef OSM_SORT_ID |
780 | /* search chain of nodes */ |
781 | while(*node && ((*node)->id < new->id)) |
782 | node = &(*node)->next; |
783 | #endif |
784 | |
785 | #ifdef OSM_SORT_LAST |
786 | while(*node) node = &(*node)->next; |
787 | #endif |
788 | |
789 | /* insert into chain */ |
790 | new->next = *node; |
791 | *node = new; |
792 | } |
793 | } else if(strcasecmp((char*)cur_node->name, "way") == 0) { |
794 | /* parse way and attach it to chain */ |
795 | way_t *new = osm_parse_osm_way(osm, doc, cur_node); |
796 | if(new) { |
797 | way_t **way = &osm->way; |
798 | |
799 | #ifdef OSM_SORT_ID |
800 | /* insert into chain */ |
801 | while(*way && ((*way)->id < new->id)) |
802 | way = &(*way)->next; |
803 | #endif |
804 | |
805 | #ifdef OSM_SORT_LAST |
806 | while(*way) way = &(*way)->next; |
807 | #endif |
808 | |
809 | /* insert into chain */ |
810 | new->next = *way; |
811 | *way = new; |
812 | } |
813 | } else if(strcasecmp((char*)cur_node->name, "relation") == 0) { |
814 | /* parse relation and attach it to chain */ |
815 | relation_t *new = osm_parse_osm_relation(osm, doc, cur_node); |
816 | if(new) { |
817 | relation_t **relation = &osm->relation; |
818 | |
819 | #ifdef OSM_SORT_ID |
820 | /* search chain of ways */ |
821 | while(*relation && ((*relation)->id < new->id)) |
822 | relation = &(*relation)->next; |
823 | #endif |
824 | |
825 | #ifdef OSM_SORT_LAST |
826 | while(*relation) relation = &(*relation)->next; |
827 | #endif |
828 | |
829 | /* insert into chain */ |
830 | new->next = *relation; |
831 | *relation = new; |
832 | } |
833 | } else |
834 | printf("found unhandled osm/%s\n", cur_node->name); |
835 | |
836 | } |
837 | } |
838 | } |
839 | |
840 | /* parse root element and search for "osm" */ |
841 | static osm_t *osm_parse_root(xmlDocPtr doc, xmlNode * a_node) { |
842 | osm_t *osm; |
843 | xmlNode *cur_node = NULL; |
844 | |
845 | /* allocate memory to hold osm file description */ |
846 | osm = g_new0(osm_t, 1); |
847 | osm->node_hash = g_new0(hash_table_t, 1); |
848 | osm->way_hash = g_new0(hash_table_t, 1); |
849 | |
850 | for (cur_node = a_node; cur_node; cur_node = cur_node->next) { |
851 | if (cur_node->type == XML_ELEMENT_NODE) { |
852 | /* parse osm osm file ... */ |
853 | if(strcasecmp((char*)cur_node->name, "osm") == 0) |
854 | osm_parse_osm(osm, doc, cur_node); |
855 | else |
856 | printf("found unhandled %s\n", cur_node->name); |
857 | } |
858 | } |
859 | |
860 | return osm; |
861 | } |
862 | |
863 | static osm_t *osm_parse_doc(xmlDocPtr doc) { |
864 | osm_t *osm; |
865 | |
866 | /* Get the root element node */ |
867 | xmlNode *root_element = xmlDocGetRootElement(doc); |
868 | |
869 | osm = osm_parse_root(doc, root_element); |
870 | |
871 | /*free the document */ |
872 | xmlFreeDoc(doc); |
873 | |
874 | /* |
875 | * Free the global variables that may |
876 | * have been allocated by the parser. |
877 | */ |
878 | xmlCleanupParser(); |
879 | |
880 | return osm; |
881 | } |
882 | #endif |
883 | |
884 | /* ------------------ osm handling ----------------- */ |
885 | |
886 | /* the two hash tables eat over 512kBytes memory and may thus be */ |
887 | /* freed at any time. osm2go can work without them (albeit slower) */ |
888 | static void hash_table_free(hash_table_t *table) { |
889 | if(!table) return; |
890 | |
891 | int i; |
892 | for(i=0;i<65536;i++) { |
893 | hash_item_t *item = table->hash[i]; |
894 | while(item) { |
895 | hash_item_t *next = item->next; |
896 | g_free(item); |
897 | item = next; |
898 | } |
899 | } |
900 | } |
901 | |
902 | void osm_hash_tables_free(osm_t *osm) { |
903 | hash_table_free(osm->node_hash); |
904 | osm->node_hash = NULL; |
905 | hash_table_free(osm->way_hash); |
906 | osm->way_hash = NULL; |
907 | } |
908 | |
909 | void osm_free(icon_t **icon, osm_t *osm) { |
910 | if(!osm) return; |
911 | |
912 | osm_hash_tables_free(osm); |
913 | |
914 | if(osm->bounds) osm_bounds_free(osm->bounds); |
915 | if(osm->user) osm_users_free(osm->user); |
916 | if(osm->way) osm_ways_free(osm->way); |
917 | if(osm->node) osm_nodes_free(icon, osm->node); |
918 | if(osm->relation) osm_relations_free(osm->relation); |
919 | g_free(osm); |
920 | } |
921 | |
922 | void osm_dump(osm_t *osm) { |
923 | osm_bounds_dump(osm->bounds); |
924 | osm_users_dump(osm->user); |
925 | osm_nodes_dump(osm->node); |
926 | osm_ways_dump(osm->way); |
927 | osm_relations_dump(osm->relation); |
928 | } |
929 | |
930 | #ifdef OSM_STREAM_PARSER |
931 | /* -------------------------- stream parser tests ------------------- */ |
932 | |
933 | #include <libxml/xmlreader.h> |
934 | |
935 | static gint my_strcmp(const xmlChar *a, const xmlChar *b) { |
936 | if(!a && !b) return 0; |
937 | if(!a) return -1; |
938 | if(!b) return +1; |
939 | return strcmp((char*)a,(char*)b); |
940 | } |
941 | |
942 | /* skip current element incl. everything below (mainly for testing) */ |
943 | /* returns FALSE if something failed */ |
944 | static gboolean skip_element(xmlTextReaderPtr reader) { |
945 | g_assert(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT); |
946 | const xmlChar *name = xmlTextReaderConstName(reader); |
947 | g_assert(name); |
948 | int depth = xmlTextReaderDepth(reader); |
949 | |
950 | if(xmlTextReaderIsEmptyElement(reader)) |
951 | return TRUE; |
952 | |
953 | int ret = xmlTextReaderRead(reader); |
954 | while((ret == 1) && |
955 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
956 | (xmlTextReaderDepth(reader) > depth) || |
957 | (my_strcmp(xmlTextReaderConstName(reader), name) != 0))) { |
958 | ret = xmlTextReaderRead(reader); |
959 | } |
960 | return(ret == 1); |
961 | } |
962 | |
963 | /* parse bounds */ |
964 | static bounds_t *process_bounds(xmlTextReaderPtr reader) { |
965 | char *prop = NULL; |
966 | bounds_t *bounds = g_new0(bounds_t, 1); |
967 | |
968 | bounds->ll_min.lat = bounds->ll_min.lon = NAN; |
969 | bounds->ll_max.lat = bounds->ll_max.lon = NAN; |
970 | |
971 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "minlat"))) { |
972 | bounds->ll_min.lat = g_ascii_strtod(prop, NULL); |
973 | xmlFree(prop); |
974 | } |
975 | |
976 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "maxlat"))) { |
977 | bounds->ll_max.lat = g_ascii_strtod(prop, NULL); |
978 | xmlFree(prop); |
979 | } |
980 | |
981 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "minlon"))) { |
982 | bounds->ll_min.lon = g_ascii_strtod(prop, NULL); |
983 | xmlFree(prop); |
984 | } |
985 | |
986 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "maxlon"))) { |
987 | bounds->ll_max.lon = g_ascii_strtod(prop, NULL); |
988 | xmlFree(prop); |
989 | } |
990 | |
991 | if(isnan(bounds->ll_min.lat) || isnan(bounds->ll_min.lon) || |
992 | isnan(bounds->ll_max.lat) || isnan(bounds->ll_max.lon)) { |
993 | errorf(NULL, "Invalid coordinate in bounds (%f/%f/%f/%f)", |
994 | bounds->ll_min.lat, bounds->ll_min.lon, |
995 | bounds->ll_max.lat, bounds->ll_max.lon); |
996 | |
997 | osm_bounds_free(bounds); |
998 | return NULL; |
999 | } |
1000 | |
1001 | /* skip everything below */ |
1002 | skip_element(reader); |
1003 | |
1004 | /* calculate map zone which will be used as a reference for all */ |
1005 | /* drawing/projection later on */ |
1006 | pos_t center = { (bounds->ll_max.lat + bounds->ll_min.lat)/2, |
1007 | (bounds->ll_max.lon + bounds->ll_min.lon)/2 }; |
1008 | |
1009 | pos2lpos_center(¢er, &bounds->center); |
1010 | |
1011 | /* the scale is needed to accomodate for "streching" */ |
1012 | /* by the mercartor projection */ |
1013 | bounds->scale = cos(DEG2RAD(center.lat)); |
1014 | |
1015 | pos2lpos_center(&bounds->ll_min, &bounds->min); |
1016 | bounds->min.x -= bounds->center.x; |
1017 | bounds->min.y -= bounds->center.y; |
1018 | bounds->min.x *= bounds->scale; |
1019 | bounds->min.y *= bounds->scale; |
1020 | |
1021 | pos2lpos_center(&bounds->ll_max, &bounds->max); |
1022 | bounds->max.x -= bounds->center.x; |
1023 | bounds->max.y -= bounds->center.y; |
1024 | bounds->max.x *= bounds->scale; |
1025 | bounds->max.y *= bounds->scale; |
1026 | |
1027 | return bounds; |
1028 | } |
1029 | |
1030 | static tag_t *process_tag(xmlTextReaderPtr reader) { |
1031 | /* allocate a new tag structure */ |
1032 | tag_t *tag = g_new0(tag_t, 1); |
1033 | |
1034 | char *prop; |
1035 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "k"))) { |
1036 | if(strlen(prop) > 0) tag->key = g_strdup(prop); |
1037 | xmlFree(prop); |
1038 | } |
1039 | |
1040 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "v"))) { |
1041 | if(strlen(prop) > 0) tag->value = g_strdup(prop); |
1042 | xmlFree(prop); |
1043 | } |
1044 | |
1045 | if(!tag->key || !tag->value) { |
1046 | printf("incomplete tag key/value %s/%s\n", tag->key, tag->value); |
1047 | osm_tags_free(tag); |
1048 | tag = NULL; |
1049 | } |
1050 | |
1051 | skip_element(reader); |
1052 | return tag; |
1053 | } |
1054 | |
1055 | static node_t *process_node(xmlTextReaderPtr reader, osm_t *osm) { |
1056 | |
1057 | /* allocate a new node structure */ |
1058 | node_t *node = g_new0(node_t, 1); |
1059 | node->pos.lat = node->pos.lon = NAN; |
1060 | |
1061 | char *prop; |
1062 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
1063 | node->id = strtoul(prop, NULL, 10); |
1064 | xmlFree(prop); |
1065 | } |
1066 | |
1067 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "lat"))) { |
1068 | node->pos.lat = g_ascii_strtod(prop, NULL); |
1069 | xmlFree(prop); |
1070 | } |
1071 | |
1072 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "lon"))) { |
1073 | node->pos.lon = g_ascii_strtod(prop, NULL); |
1074 | xmlFree(prop); |
1075 | } |
1076 | |
1077 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
1078 | node->user = osm_user(osm, prop); |
1079 | xmlFree(prop); |
1080 | } |
1081 | |
1082 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
1083 | node->visible = (strcasecmp(prop, "true") == 0); |
1084 | xmlFree(prop); |
1085 | } |
1086 | |
1087 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
1088 | node->time = convert_iso8601(prop); |
1089 | xmlFree(prop); |
1090 | } |
1091 | |
1092 | pos2lpos(osm->bounds, &node->pos, &node->lpos); |
1093 | |
1094 | /* append node to end of hash table if present */ |
1095 | if(osm->node_hash) { |
1096 | hash_item_t **item = &osm->node_hash->hash[ID2HASH(node->id)]; |
1097 | while(*item) item = &(*item)->next; |
1098 | |
1099 | *item = g_new0(hash_item_t, 1); |
1100 | (*item)->data.node = node; |
1101 | } |
1102 | |
1103 | /* just an empty element? then return the node as it is */ |
1104 | if(xmlTextReaderIsEmptyElement(reader)) |
1105 | return node; |
1106 | |
1107 | /* parse tags if present */ |
1108 | int depth = xmlTextReaderDepth(reader); |
1109 | |
1110 | /* scan all elements on same level or its children */ |
1111 | tag_t **tag = &node->tag; |
1112 | int ret = xmlTextReaderRead(reader); |
1113 | while((ret == 1) && |
1114 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
1115 | (xmlTextReaderDepth(reader) != depth))) { |
1116 | |
1117 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
1118 | char *subname = (char*)xmlTextReaderConstName(reader); |
1119 | if(strcasecmp(subname, "tag") == 0) { |
1120 | *tag = process_tag(reader); |
1121 | if(*tag) tag = &(*tag)->next; |
1122 | } else |
1123 | skip_element(reader); |
1124 | } |
1125 | |
1126 | ret = xmlTextReaderRead(reader); |
1127 | } |
1128 | |
1129 | return node; |
1130 | } |
1131 | |
1132 | static node_chain_t *process_nd(xmlTextReaderPtr reader, osm_t *osm) { |
1133 | char *prop; |
1134 | |
1135 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) { |
1136 | item_id_t id = strtoul(prop, NULL, 10); |
1137 | node_chain_t *node_chain = g_new0(node_chain_t, 1); |
1138 | |
1139 | /* search matching node */ |
1140 | node_chain->node = osm_get_node_by_id(osm, id); |
1141 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
1142 | else node_chain->node->ways++; |
1143 | |
1144 | xmlFree(prop); |
1145 | |
1146 | skip_element(reader); |
1147 | return node_chain; |
1148 | } |
1149 | |
1150 | skip_element(reader); |
1151 | return NULL; |
1152 | } |
1153 | |
1154 | static way_t *process_way(xmlTextReaderPtr reader, osm_t *osm) { |
1155 | /* allocate a new way structure */ |
1156 | way_t *way = g_new0(way_t, 1); |
1157 | |
1158 | char *prop; |
1159 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
1160 | way->id = strtoul(prop, NULL, 10); |
1161 | xmlFree(prop); |
1162 | } |
1163 | |
1164 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
1165 | way->user = osm_user(osm, prop); |
1166 | xmlFree(prop); |
1167 | } |
1168 | |
1169 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
1170 | way->visible = (strcasecmp(prop, "true") == 0); |
1171 | xmlFree(prop); |
1172 | } |
1173 | |
1174 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
1175 | way->time = convert_iso8601(prop); |
1176 | xmlFree(prop); |
1177 | } |
1178 | |
1179 | /* append way to end of hash table if present */ |
1180 | if(osm->way_hash) { |
1181 | hash_item_t **item = &osm->way_hash->hash[ID2HASH(way->id)]; |
1182 | while(*item) item = &(*item)->next; |
1183 | |
1184 | *item = g_new0(hash_item_t, 1); |
1185 | (*item)->data.way = way; |
1186 | } |
1187 | |
1188 | /* just an empty element? then return the way as it is */ |
1189 | /* (this should in fact never happen as this would be a way without nodes) */ |
1190 | if(xmlTextReaderIsEmptyElement(reader)) |
1191 | return way; |
1192 | |
1193 | /* parse tags/nodes if present */ |
1194 | int depth = xmlTextReaderDepth(reader); |
1195 | |
1196 | /* scan all elements on same level or its children */ |
1197 | tag_t **tag = &way->tag; |
1198 | node_chain_t **node_chain = &way->node_chain; |
1199 | int ret = xmlTextReaderRead(reader); |
1200 | while((ret == 1) && |
1201 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
1202 | (xmlTextReaderDepth(reader) != depth))) { |
1203 | |
1204 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
1205 | char *subname = (char*)xmlTextReaderConstName(reader); |
1206 | if(strcasecmp(subname, "nd") == 0) { |
1207 | *node_chain = process_nd(reader, osm); |
1208 | if(*node_chain) node_chain = &(*node_chain)->next; |
1209 | } else if(strcasecmp(subname, "tag") == 0) { |
1210 | *tag = process_tag(reader); |
1211 | if(*tag) tag = &(*tag)->next; |
1212 | } else |
1213 | skip_element(reader); |
1214 | } |
1215 | ret = xmlTextReaderRead(reader); |
1216 | } |
1217 | |
1218 | return way; |
1219 | } |
1220 | |
1221 | static member_t *process_member(xmlTextReaderPtr reader, osm_t *osm) { |
1222 | char *prop; |
1223 | member_t *member = g_new0(member_t, 1); |
1224 | member->type = ILLEGAL; |
1225 | |
1226 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "type"))) { |
1227 | if(strcasecmp(prop, "way") == 0) member->type = WAY; |
1228 | else if(strcasecmp(prop, "node") == 0) member->type = NODE; |
1229 | else if(strcasecmp(prop, "relation") == 0) member->type = RELATION; |
1230 | xmlFree(prop); |
1231 | } |
1232 | |
1233 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) { |
1234 | item_id_t id = strtoul(prop, NULL, 10); |
1235 | |
1236 | switch(member->type) { |
1237 | case ILLEGAL: |
1238 | printf("Unable to store illegal type\n"); |
1239 | break; |
1240 | |
1241 | case WAY: |
1242 | /* search matching way */ |
1243 | member->way = osm_get_way_by_id(osm, id); |
1244 | if(!member->way) { |
1245 | member->type = WAY_ID; |
1246 | member->id = id; |
1247 | } |
1248 | break; |
1249 | |
1250 | case NODE: |
1251 | /* search matching node */ |
1252 | member->node = osm_get_node_by_id(osm, id); |
1253 | if(!member->node) { |
1254 | member->type = NODE_ID; |
1255 | member->id = id; |
1256 | } |
1257 | break; |
1258 | |
1259 | case RELATION: |
1260 | /* search matching relation */ |
1261 | member->relation = osm_get_relation_by_id(osm, id); |
1262 | if(!member->relation) { |
1263 | member->type = NODE_ID; |
1264 | member->id = id; |
1265 | } |
1266 | break; |
1267 | |
1268 | case WAY_ID: |
1269 | case NODE_ID: |
1270 | case RELATION_ID: |
1271 | break; |
1272 | } |
1273 | |
1274 | xmlFree(prop); |
1275 | } |
1276 | |
1277 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "role"))) { |
1278 | if(strlen(prop) > 0) member->role = g_strdup(prop); |
1279 | xmlFree(prop); |
1280 | } |
1281 | |
1282 | return member; |
1283 | } |
1284 | |
1285 | static relation_t *process_relation(xmlTextReaderPtr reader, osm_t *osm) { |
1286 | /* allocate a new relation structure */ |
1287 | relation_t *relation = g_new0(relation_t, 1); |
1288 | |
1289 | char *prop; |
1290 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"))) { |
1291 | relation->id = strtoul(prop, NULL, 10); |
1292 | xmlFree(prop); |
1293 | } |
1294 | |
1295 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "user"))) { |
1296 | relation->user = osm_user(osm, prop); |
1297 | xmlFree(prop); |
1298 | } |
1299 | |
1300 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "visible"))) { |
1301 | relation->visible = (strcasecmp(prop, "true") == 0); |
1302 | xmlFree(prop); |
1303 | } |
1304 | |
1305 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "timestamp"))) { |
1306 | relation->time = convert_iso8601(prop); |
1307 | xmlFree(prop); |
1308 | } |
1309 | |
1310 | /* just an empty element? then return the relation as it is */ |
1311 | /* (this should in fact never happen as this would be a relation */ |
1312 | /* without members) */ |
1313 | if(xmlTextReaderIsEmptyElement(reader)) |
1314 | return relation; |
1315 | |
1316 | /* parse tags/member if present */ |
1317 | int depth = xmlTextReaderDepth(reader); |
1318 | |
1319 | /* scan all elements on same level or its children */ |
1320 | tag_t **tag = &relation->tag; |
1321 | member_t **member = &relation->member; |
1322 | int ret = xmlTextReaderRead(reader); |
1323 | while((ret == 1) && |
1324 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
1325 | (xmlTextReaderDepth(reader) != depth))) { |
1326 | |
1327 | if(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) { |
1328 | char *subname = (char*)xmlTextReaderConstName(reader); |
1329 | if(strcasecmp(subname, "member") == 0) { |
1330 | *member = process_member(reader, osm); |
1331 | if(*member) member = &(*member)->next; |
1332 | } else if(strcasecmp(subname, "tag") == 0) { |
1333 | *tag = process_tag(reader); |
1334 | if(*tag) tag = &(*tag)->next; |
1335 | } else |
1336 | skip_element(reader); |
1337 | } |
1338 | ret = xmlTextReaderRead(reader); |
1339 | } |
1340 | |
1341 | return relation; |
1342 | } |
1343 | |
1344 | static osm_t *process_osm(xmlTextReaderPtr reader) { |
1345 | /* alloc osm structure */ |
1346 | osm_t *osm = g_new0(osm_t, 1); |
1347 | osm->node_hash = g_new0(hash_table_t, 1); |
1348 | osm->way_hash = g_new0(hash_table_t, 1); |
1349 | |
1350 | node_t **node = &osm->node; |
1351 | way_t **way = &osm->way; |
1352 | relation_t **relation = &osm->relation; |
1353 | |
1354 | /* no attributes of interest */ |
1355 | |
1356 | const xmlChar *name = xmlTextReaderConstName(reader); |
1357 | g_assert(name); |
1358 | |
1359 | /* read next node */ |
1360 | int num_elems = 0; |
1361 | const int tick_every = 50; // Balance responsive appearance with performance. |
1362 | int ret = xmlTextReaderRead(reader); |
1363 | while(ret == 1) { |
1364 | |
1365 | switch(xmlTextReaderNodeType(reader)) { |
1366 | case XML_READER_TYPE_ELEMENT: |
1367 | |
1368 | g_assert(xmlTextReaderDepth(reader) == 1); |
1369 | char *name = (char*)xmlTextReaderConstName(reader); |
1370 | if(strcasecmp(name, "bounds") == 0) { |
1371 | osm->bounds = process_bounds(reader); |
1372 | } else if(strcasecmp(name, "node") == 0) { |
1373 | *node = process_node(reader, osm); |
1374 | if(*node) node = &(*node)->next; |
1375 | } else if(strcasecmp(name, "way") == 0) { |
1376 | *way = process_way(reader, osm); |
1377 | if(*way) way = &(*way)->next; |
1378 | } else if(strcasecmp(name, "relation") == 0) { |
1379 | *relation = process_relation(reader, osm); |
1380 | if(*relation) relation = &(*relation)->next; |
1381 | } else { |
1382 | printf("something unknown found\n"); |
1383 | g_assert(0); |
1384 | skip_element(reader); |
1385 | } |
1386 | break; |
1387 | |
1388 | case XML_READER_TYPE_END_ELEMENT: |
1389 | /* end element must be for the current element */ |
1390 | g_assert(xmlTextReaderDepth(reader) == 0); |
1391 | return osm; |
1392 | break; |
1393 | |
1394 | default: |
1395 | break; |
1396 | } |
1397 | ret = xmlTextReaderRead(reader); |
1398 | |
1399 | if (num_elems++ > tick_every) { |
1400 | num_elems = 0; |
1401 | banner_busy_tick(); |
1402 | } |
1403 | } |
1404 | |
1405 | g_assert(0); |
1406 | return NULL; |
1407 | } |
1408 | |
1409 | static osm_t *process_file(const char *filename) { |
1410 | osm_t *osm = NULL; |
1411 | xmlTextReaderPtr reader; |
1412 | int ret; |
1413 | |
1414 | reader = xmlReaderForFile(filename, NULL, 0); |
1415 | if (reader != NULL) { |
1416 | ret = xmlTextReaderRead(reader); |
1417 | if(ret == 1) { |
1418 | char *name = (char*)xmlTextReaderConstName(reader); |
1419 | if(name && strcasecmp(name, "osm") == 0) |
1420 | osm = process_osm(reader); |
1421 | } else |
1422 | printf("file empty\n"); |
1423 | |
1424 | xmlFreeTextReader(reader); |
1425 | } else { |
1426 | fprintf(stderr, "Unable to open %s\n", filename); |
1427 | } |
1428 | return osm; |
1429 | } |
1430 | |
1431 | /* ----------------------- end of stream parser tests ------------------- */ |
1432 | #endif |
1433 | |
1434 | #ifdef OSM_QND_XML_PARSER |
1435 | /* -------------------------- qnd-xml parser tests ------------------- */ |
1436 | |
1437 | #ifdef USE_FLOAT |
1438 | #define GET_PROP_POS(a,b,c) qnd_xml_get_prop_float(a, b, c) |
1439 | #else |
1440 | #define GET_PROP_POS(a,b,c) qnd_xml_get_prop_double(a, b, c) |
1441 | #endif |
1442 | |
1443 | gboolean osm_bounds_cb(qnd_xml_stack_t *stack, |
1444 | qnd_xml_attribute_t *attributes, gpointer data) { |
1445 | |
1446 | /* get parent pointer */ |
1447 | osm_t *osm = (osm_t*)stack->prev->userdata[0]; |
1448 | |
1449 | if(osm->bounds) { |
1450 | errorf(NULL, "Doubly defined bounds"); |
1451 | return FALSE; |
1452 | } |
1453 | |
1454 | bounds_t *bounds = osm->bounds = g_new0(bounds_t, 1); |
1455 | |
1456 | bounds->ll_min.lat = bounds->ll_min.lon = NAN; |
1457 | bounds->ll_max.lat = bounds->ll_max.lon = NAN; |
1458 | |
1459 | GET_PROP_POS(attributes, "minlat", &bounds->ll_min.lat); |
1460 | GET_PROP_POS(attributes, "minlon", &bounds->ll_min.lon); |
1461 | GET_PROP_POS(attributes, "maxlat", &bounds->ll_max.lat); |
1462 | GET_PROP_POS(attributes, "maxlon", &bounds->ll_max.lon); |
1463 | |
1464 | if(isnan(bounds->ll_min.lat) || isnan(bounds->ll_min.lon) || |
1465 | isnan(bounds->ll_max.lat) || isnan(bounds->ll_max.lon)) { |
1466 | errorf(NULL, "Invalid coordinate in bounds (%f/%f/%f/%f)", |
1467 | bounds->ll_min.lat, bounds->ll_min.lon, |
1468 | bounds->ll_max.lat, bounds->ll_max.lon); |
1469 | |
1470 | osm_bounds_free(bounds); |
1471 | osm->bounds = NULL; |
1472 | return FALSE; |
1473 | } |
1474 | |
1475 | |
1476 | /* calculate map zone which will be used as a reference for all */ |
1477 | /* drawing/projection later on */ |
1478 | pos_t center = { (bounds->ll_max.lat + bounds->ll_min.lat)/2, |
1479 | (bounds->ll_max.lon + bounds->ll_min.lon)/2 }; |
1480 | |
1481 | pos2lpos_center(¢er, &bounds->center); |
1482 | |
1483 | /* the scale is needed to accomodate for "streching" */ |
1484 | /* by the mercartor projection */ |
1485 | bounds->scale = cos(DEG2RAD(center.lat)); |
1486 | |
1487 | pos2lpos_center(&bounds->ll_min, &bounds->min); |
1488 | bounds->min.x -= bounds->center.x; |
1489 | bounds->min.y -= bounds->center.y; |
1490 | bounds->min.x *= bounds->scale; |
1491 | bounds->min.y *= bounds->scale; |
1492 | |
1493 | pos2lpos_center(&bounds->ll_max, &bounds->max); |
1494 | bounds->max.x -= bounds->center.x; |
1495 | bounds->max.y -= bounds->center.y; |
1496 | bounds->max.x *= bounds->scale; |
1497 | bounds->max.y *= bounds->scale; |
1498 | |
1499 | return TRUE; |
1500 | } |
1501 | |
1502 | static gboolean osm_tag_cb(qnd_xml_stack_t *stack, |
1503 | qnd_xml_attribute_t *attributes, gpointer data) { |
1504 | |
1505 | tag_t *tag = *(tag_t**)stack->prev->userdata[1] = g_new0(tag_t, 1); |
1506 | |
1507 | tag->key = qnd_xml_get_prop_str(attributes, "k"); |
1508 | tag->value = qnd_xml_get_prop_str(attributes, "v"); |
1509 | |
1510 | if(!tag->key || !tag->value) { |
1511 | printf("incomplete tag key/value %s/%s\n", tag->key, tag->value); |
1512 | osm_tags_free(tag); |
1513 | tag = NULL; |
1514 | } else |
1515 | stack->prev->userdata[1] = &tag->next; |
1516 | |
1517 | return TRUE; |
1518 | } |
1519 | |
1520 | static gboolean osm_node_cb(qnd_xml_stack_t *stack, |
1521 | qnd_xml_attribute_t *attributes, gpointer data) { |
1522 | |
1523 | osm_t *osm = (osm_t*)stack->prev->userdata[0]; |
1524 | |
1525 | /* allocate a new node structure. userdata[1] points to the current */ |
1526 | /* position a new node is to be stored */ |
1527 | node_t *node = *(node_t**)stack->prev->userdata[1] = |
1528 | stack->userdata[0] = g_new0(node_t, 1); |
1529 | stack->prev->userdata[1] = &node->next; |
1530 | |
1531 | qnd_xml_get_prop_gulong(attributes, "id", &node->id); |
1532 | GET_PROP_POS(attributes, "lat", &node->pos.lat); |
1533 | GET_PROP_POS(attributes, "lon", &node->pos.lon); |
1534 | node->user = osm_user(osm, qnd_xml_get_prop(attributes, "user")); |
1535 | node->visible = qnd_xml_get_prop_is(attributes, "visible", "true"); |
1536 | node->time = convert_iso8601(qnd_xml_get_prop(attributes, "timestamp")); |
1537 | |
1538 | pos2lpos(osm->bounds, &node->pos, &node->lpos); |
1539 | |
1540 | /* store current tag pointer in userdata for fast access to current tag */ |
1541 | stack->userdata[1] = &node->tag; |
1542 | |
1543 | /* append node to end of hash table if present */ |
1544 | if(osm->node_hash) { |
1545 | hash_item_t **item = &osm->node_hash->hash[ID2HASH(node->id)]; |
1546 | while(*item) item = &(*item)->next; |
1547 | |
1548 | *item = g_new0(hash_item_t, 1); |
1549 | (*item)->data.node = node; |
1550 | } |
1551 | |
1552 | return TRUE; |
1553 | } |
1554 | |
1555 | static gboolean osm_way_nd_cb(qnd_xml_stack_t *stack, |
1556 | qnd_xml_attribute_t *attributes, gpointer data) { |
1557 | |
1558 | osm_t *osm = (osm_t*)stack->prev->prev->userdata[0]; |
1559 | |
1560 | item_id_t id; |
1561 | if(qnd_xml_get_prop_gulong(attributes, "ref", &id)) { |
1562 | /* allocate a new node_chain structure */ |
1563 | node_chain_t *node_chain = *(node_chain_t**)stack->prev->userdata[2] = |
1564 | g_new0(node_chain_t, 1); |
1565 | |
1566 | /* search matching node */ |
1567 | node_chain->node = osm_get_node_by_id(osm, id); |
1568 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
1569 | else node_chain->node->ways++; |
1570 | |
1571 | stack->prev->userdata[2] = &node_chain->next; |
1572 | } |
1573 | |
1574 | return TRUE; |
1575 | } |
1576 | |
1577 | gboolean osm_way_cb(qnd_xml_stack_t *stack, |
1578 | qnd_xml_attribute_t *attributes, gpointer data) { |
1579 | |
1580 | osm_t *osm = (osm_t*)stack->prev->userdata[0]; |
1581 | |
1582 | /* allocate a new way structure. userdata[2] points to the current */ |
1583 | /* position a new way is to be stored in the way list */ |
1584 | way_t *way = *(way_t**)stack->prev->userdata[2] = |
1585 | stack->userdata[0] = g_new0(way_t, 1); |
1586 | stack->prev->userdata[2] = &way->next; |
1587 | |
1588 | qnd_xml_get_prop_gulong(attributes, "id", &way->id); |
1589 | way->user = osm_user(osm, qnd_xml_get_prop(attributes, "user")); |
1590 | way->visible = qnd_xml_get_prop_is(attributes, "visible", "true"); |
1591 | way->time = convert_iso8601(qnd_xml_get_prop(attributes, "timestamp")); |
1592 | |
1593 | /* store current tag and node_chain pointers in userdata for fast */ |
1594 | /* access to current tag/node_chain entry */ |
1595 | stack->userdata[1] = &way->tag; |
1596 | stack->userdata[2] = &way->node_chain; |
1597 | |
1598 | /* append way to end of hash table if present */ |
1599 | if(osm->way_hash) { |
1600 | hash_item_t **item = &osm->way_hash->hash[ID2HASH(way->id)]; |
1601 | while(*item) item = &(*item)->next; |
1602 | |
1603 | *item = g_new0(hash_item_t, 1); |
1604 | (*item)->data.way = way; |
1605 | } |
1606 | |
1607 | return TRUE; |
1608 | } |
1609 | |
1610 | static gboolean osm_rel_member_cb(qnd_xml_stack_t *stack, |
1611 | qnd_xml_attribute_t *attributes, gpointer data) { |
1612 | |
1613 | osm_t *osm = (osm_t*)stack->prev->prev->userdata[0]; |
1614 | |
1615 | member_t *member = *(member_t**)stack->prev->userdata[2] = |
1616 | g_new0(member_t, 1); |
1617 | stack->prev->userdata[2] = &member->next; |
1618 | member->type = ILLEGAL; |
1619 | |
1620 | char *type = qnd_xml_get_prop(attributes, "type"); |
1621 | if(type) { |
1622 | if(strcasecmp(type, "way") == 0) member->type = WAY; |
1623 | else if(strcasecmp(type, "node") == 0) member->type = NODE; |
1624 | else if(strcasecmp(type, "relation") == 0) member->type = RELATION; |
1625 | } |
1626 | |
1627 | item_id_t id; |
1628 | if(qnd_xml_get_prop_gulong(attributes, "ref", &id)) { |
1629 | switch(member->type) { |
1630 | case ILLEGAL: |
1631 | printf("Unable to store illegal type\n"); |
1632 | break; |
1633 | |
1634 | case WAY: |
1635 | /* search matching way */ |
1636 | member->way = osm_get_way_by_id(osm, id); |
1637 | if(!member->way) { |
1638 | member->type = WAY_ID; |
1639 | member->id = id; |
1640 | } |
1641 | break; |
1642 | |
1643 | case NODE: |
1644 | /* search matching node */ |
1645 | member->node = osm_get_node_by_id(osm, id); |
1646 | if(!member->node) { |
1647 | member->type = NODE_ID; |
1648 | member->id = id; |
1649 | } |
1650 | break; |
1651 | |
1652 | case RELATION: |
1653 | /* search matching relation */ |
1654 | member->relation = osm_get_relation_by_id(osm, id); |
1655 | if(!member->relation) { |
1656 | member->type = NODE_ID; |
1657 | member->id = id; |
1658 | } |
1659 | break; |
1660 | |
1661 | case WAY_ID: |
1662 | case NODE_ID: |
1663 | case RELATION_ID: |
1664 | break; |
1665 | } |
1666 | } |
1667 | |
1668 | return TRUE; |
1669 | } |
1670 | |
1671 | gboolean osm_rel_cb(qnd_xml_stack_t *stack, |
1672 | qnd_xml_attribute_t *attributes, gpointer data) { |
1673 | |
1674 | osm_t *osm = (osm_t*)stack->prev->userdata[0]; |
1675 | |
1676 | /* allocate a new relation structure. userdata[3] points to the current */ |
1677 | /* position a new relation is to be stored at in the relation list */ |
1678 | relation_t *relation = *(relation_t**)stack->prev->userdata[3] = |
1679 | stack->userdata[0] = g_new0(relation_t, 1); |
1680 | stack->prev->userdata[3] = &relation->next; |
1681 | |
1682 | qnd_xml_get_prop_gulong(attributes, "id", &relation->id); |
1683 | relation->user = osm_user(osm, qnd_xml_get_prop(attributes, "user")); |
1684 | relation->visible = qnd_xml_get_prop_is(attributes, "visible", "true"); |
1685 | relation->time = convert_iso8601(qnd_xml_get_prop(attributes, "timestamp")); |
1686 | |
1687 | /* store current tag and member pointers in userdata for fast access */ |
1688 | /* to current tag and members in their chains */ |
1689 | stack->userdata[1] = &relation->tag; |
1690 | stack->userdata[2] = &relation->member; |
1691 | |
1692 | return TRUE; |
1693 | } |
1694 | |
1695 | gboolean osm_cb(qnd_xml_stack_t *stack, |
1696 | qnd_xml_attribute_t *attributes, gpointer data) { |
1697 | |
1698 | g_assert(!stack->userdata[0]); |
1699 | |
1700 | /* also set parents (roots) userdata as it's the parsers return value */ |
1701 | osm_t *osm = stack->prev->userdata[0] = |
1702 | stack->userdata[0] = g_new0(osm_t, 1); |
1703 | |
1704 | osm->node_hash = g_new0(hash_table_t, 1); |
1705 | osm->way_hash = g_new0(hash_table_t, 1); |
1706 | |
1707 | /* store direct pointers for faster list access */ |
1708 | /* (otherwise we'd have to search the end of the lists for every item */ |
1709 | /* to be attached) */ |
1710 | stack->userdata[1] = &osm->node; |
1711 | stack->userdata[2] = &osm->way; |
1712 | stack->userdata[3] = &osm->relation; |
1713 | |
1714 | return TRUE; |
1715 | } |
1716 | |
1717 | |
1718 | /* these structures describe the content qnd_xml expects while parsing */ |
1719 | qnd_xml_entry_t osm_node_tag = { "tag", osm_tag_cb, QND_XML_LEAF }; |
1720 | |
1721 | qnd_xml_entry_t osm_way_tag = { "tag", osm_tag_cb, QND_XML_LEAF }; |
1722 | qnd_xml_entry_t osm_way_nd = { "nd", osm_way_nd_cb, QND_XML_LEAF }; |
1723 | |
1724 | qnd_xml_entry_t osm_rel_tag = { "tag", osm_tag_cb, QND_XML_LEAF }; |
1725 | qnd_xml_entry_t osm_rel_member = { "member", osm_rel_member_cb, QND_XML_LEAF }; |
1726 | |
1727 | qnd_xml_entry_t osm_bounds = { "bounds", osm_bounds_cb, QND_XML_LEAF }; |
1728 | |
1729 | qnd_xml_entry_t *node_children[] = { &osm_node_tag }, |
1730 | osm_node = { "node", osm_node_cb, QND_XML_CHILDREN(node_children) }; |
1731 | |
1732 | qnd_xml_entry_t *way_children[] = { &osm_way_tag, &osm_way_nd }, |
1733 | osm_way = { "way", osm_way_cb, QND_XML_CHILDREN(way_children) }; |
1734 | |
1735 | qnd_xml_entry_t *rel_children[] = { &osm_rel_tag, &osm_rel_member }, |
1736 | osm_rel = { "rel", osm_rel_cb, QND_XML_CHILDREN(rel_children) }; |
1737 | |
1738 | /* the osm element */ |
1739 | qnd_xml_entry_t *osm_children[] = { |
1740 | &osm_bounds, &osm_node, &osm_way, &osm_rel }; |
1741 | qnd_xml_entry_t osm = { "osm", osm_cb, QND_XML_CHILDREN(osm_children) }; |
1742 | |
1743 | /* the root element */ |
1744 | qnd_xml_entry_t *root_children[] = { &osm }; |
1745 | qnd_xml_entry_t root = { "<root>", NULL, QND_XML_CHILDREN(root_children) }; |
1746 | |
1747 | // gcc `pkg-config --cflags --libs glib-2.0` -o qnd_xml qnd_xml.c |
1748 | |
1749 | |
1750 | |
1751 | /* ----------------------- end of qnd-xml parser tests ------------------- */ |
1752 | #endif |
1753 | |
1754 | |
1755 | #include <sys/time.h> |
1756 | |
1757 | osm_t *osm_parse(char *filename) { |
1758 | |
1759 | struct timeval start; |
1760 | gettimeofday(&start, NULL); |
1761 | |
1762 | #ifdef OSM_STREAM_PARSER |
1763 | LIBXML_TEST_VERSION; |
1764 | |
1765 | // use stream parser |
1766 | osm_t *osm = process_file(filename); |
1767 | xmlCleanupParser(); |
1768 | #endif |
1769 | |
1770 | #ifdef OSM_DOM_PARSER |
1771 | LIBXML_TEST_VERSION; |
1772 | |
1773 | // parse into a tree |
1774 | /* parse the file and get the DOM */ |
1775 | xmlDoc *doc = NULL; |
1776 | if ((doc = xmlReadFile(filename, NULL, 0)) == NULL) { |
1777 | xmlErrorPtr errP = xmlGetLastError(); |
1778 | errorf(NULL, "While parsing \"%s\":\n\n%s", filename, errP->message); |
1779 | return NULL; |
1780 | } |
1781 | |
1782 | osm_t *osm = osm_parse_doc(doc); |
1783 | #endif |
1784 | |
1785 | #ifdef OSM_QND_XML_PARSER |
1786 | osm_t *osm = NULL; |
1787 | if(!(osm = qnd_xml_parse(filename, &root, NULL))) { |
1788 | errorf(NULL, "While parsing \"%s\"", filename); |
1789 | return NULL; |
1790 | } |
1791 | #endif |
1792 | |
1793 | struct timeval end; |
1794 | gettimeofday(&end, NULL); |
1795 | |
1796 | printf("total parse time: %ldms\n", |
1797 | (end.tv_usec - start.tv_usec)/1000 + |
1798 | (end.tv_sec - start.tv_sec)*1000); |
1799 | |
1800 | return osm; |
1801 | } |
1802 | |
1803 | gboolean osm_sanity_check(GtkWidget *parent, osm_t *osm) { |
1804 | if(!osm->bounds) { |
1805 | errorf(parent, _("Invalid data in OSM file:\n" |
1806 | "Boundary box missing!")); |
1807 | return FALSE; |
1808 | } |
1809 | if(!osm->node) { |
1810 | errorf(parent, _("Invalid data in OSM file:\n" |
1811 | "No drawable content found!")); |
1812 | return FALSE; |
1813 | } |
1814 | return TRUE; |
1815 | } |
1816 | |
1817 | /* ------------------------- misc access functions -------------- */ |
1818 | |
1819 | char *osm_tag_get_by_key(tag_t *tag, char *key) { |
1820 | if(!tag || !key) return NULL; |
1821 | |
1822 | while(tag) { |
1823 | if(strcasecmp(tag->key, key) == 0) |
1824 | return tag->value; |
1825 | |
1826 | tag = tag->next; |
1827 | } |
1828 | |
1829 | return NULL; |
1830 | } |
1831 | |
1832 | char *osm_way_get_value(way_t *way, char *key) { |
1833 | tag_t *tag = way->tag; |
1834 | |
1835 | while(tag) { |
1836 | if(strcasecmp(tag->key, key) == 0) |
1837 | return tag->value; |
1838 | |
1839 | tag = tag->next; |
1840 | } |
1841 | |
1842 | return NULL; |
1843 | } |
1844 | |
1845 | char *osm_node_get_value(node_t *node, char *key) { |
1846 | tag_t *tag = node->tag; |
1847 | |
1848 | while(tag) { |
1849 | if(strcasecmp(tag->key, key) == 0) |
1850 | return tag->value; |
1851 | |
1852 | tag = tag->next; |
1853 | } |
1854 | |
1855 | return NULL; |
1856 | } |
1857 | |
1858 | gboolean osm_way_has_value(way_t *way, char *str) { |
1859 | tag_t *tag = way->tag; |
1860 | |
1861 | while(tag) { |
1862 | if(tag->value && strcasecmp(tag->value, str) == 0) |
1863 | return TRUE; |
1864 | |
1865 | tag = tag->next; |
1866 | } |
1867 | return FALSE; |
1868 | } |
1869 | |
1870 | gboolean osm_node_has_value(node_t *node, char *str) { |
1871 | tag_t *tag = node->tag; |
1872 | |
1873 | while(tag) { |
1874 | if(tag->value && strcasecmp(tag->value, str) == 0) |
1875 | return TRUE; |
1876 | |
1877 | tag = tag->next; |
1878 | } |
1879 | return FALSE; |
1880 | } |
1881 | |
1882 | gboolean osm_node_has_tag(node_t *node) { |
1883 | tag_t *tag = node->tag; |
1884 | |
1885 | if(tag && strcasecmp(tag->key, "created_by") == 0) |
1886 | tag = tag->next; |
1887 | |
1888 | return tag != NULL; |
1889 | } |
1890 | |
1891 | /* return true if node is part of way */ |
1892 | gboolean osm_node_in_way(way_t *way, node_t *node) { |
1893 | node_chain_t *node_chain = way->node_chain; |
1894 | while(node_chain) { |
1895 | if(node_chain->node == node) |
1896 | return TRUE; |
1897 | |
1898 | node_chain = node_chain->next; |
1899 | } |
1900 | return FALSE; |
1901 | } |
1902 | |
1903 | static void osm_generate_tags(tag_t *tag, xmlNodePtr node) { |
1904 | while(tag) { |
1905 | /* make sure "created_by" tag contains our id */ |
1906 | if(strcasecmp(tag->key, "created_by") == 0) { |
1907 | g_free(tag->value); |
1908 | tag->value = g_strdup(PACKAGE " v" VERSION); |
1909 | } |
1910 | |
1911 | xmlNodePtr tag_node = xmlNewChild(node, NULL, BAD_CAST "tag", NULL); |
1912 | xmlNewProp(tag_node, BAD_CAST "k", BAD_CAST tag->key); |
1913 | xmlNewProp(tag_node, BAD_CAST "v", BAD_CAST tag->value); |
1914 | tag = tag->next; |
1915 | } |
1916 | } |
1917 | |
1918 | /* build xml representation for a way */ |
1919 | char *osm_generate_xml(osm_t *osm, type_t type, void *item) { |
1920 | char str[32]; |
1921 | xmlChar *result = NULL; |
1922 | int len = 0; |
1923 | |
1924 | LIBXML_TEST_VERSION; |
1925 | |
1926 | xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0"); |
1927 | xmlNodePtr root_node = xmlNewNode(NULL, BAD_CAST "osm"); |
1928 | xmlNewProp(root_node, BAD_CAST "version", BAD_CAST "0.5"); |
1929 | xmlNewProp(root_node, BAD_CAST "generator", BAD_CAST PACKAGE " V" VERSION); |
1930 | xmlDocSetRootElement(doc, root_node); |
1931 | |
1932 | switch(type) { |
1933 | case NODE: |
1934 | { |
1935 | node_t *node = (node_t*)item; |
1936 | xmlNodePtr node_node = xmlNewChild(root_node, NULL, |
1937 | BAD_CAST "node", NULL); |
1938 | /* new nodes don't have an id, but get one after the upload */ |
1939 | if(!(node->flags & OSM_FLAG_NEW)) { |
1940 | snprintf(str, sizeof(str), "%u", (unsigned)node->id); |
1941 | xmlNewProp(node_node, BAD_CAST "id", BAD_CAST str); |
1942 | } |
1943 | g_ascii_dtostr(str, sizeof(str), node->pos.lat); |
1944 | xmlNewProp(node_node, BAD_CAST "lat", BAD_CAST str); |
1945 | g_ascii_dtostr(str, sizeof(str), node->pos.lon); |
1946 | xmlNewProp(node_node, BAD_CAST "lon", BAD_CAST str); |
1947 | osm_generate_tags(node->tag, node_node); |
1948 | } |
1949 | break; |
1950 | |
1951 | case WAY: |
1952 | { |
1953 | way_t *way = (way_t*)item; |
1954 | xmlNodePtr way_node = xmlNewChild(root_node, NULL, BAD_CAST "way", NULL); |
1955 | snprintf(str, sizeof(str), "%u", (unsigned)way->id); |
1956 | xmlNewProp(way_node, BAD_CAST "id", BAD_CAST str); |
1957 | |
1958 | node_chain_t *node_chain = way->node_chain; |
1959 | while(node_chain) { |
1960 | xmlNodePtr nd_node = xmlNewChild(way_node, NULL, BAD_CAST "nd", NULL); |
1961 | char *str = g_strdup_printf("%ld", node_chain->node->id); |
1962 | xmlNewProp(nd_node, BAD_CAST "ref", BAD_CAST str); |
1963 | g_free(str); |
1964 | node_chain = node_chain->next; |
1965 | } |
1966 | |
1967 | osm_generate_tags(way->tag, way_node); |
1968 | } |
1969 | break; |
1970 | |
1971 | case RELATION: |
1972 | { |
1973 | relation_t *relation = (relation_t*)item; |
1974 | xmlNodePtr rel_node = xmlNewChild(root_node, NULL, |
1975 | BAD_CAST "relation", NULL); |
1976 | snprintf(str, sizeof(str), "%u", (unsigned)relation->id); |
1977 | xmlNewProp(rel_node, BAD_CAST "id", BAD_CAST str); |
1978 | |
1979 | member_t *member = relation->member; |
1980 | while(member) { |
1981 | xmlNodePtr m_node = xmlNewChild(rel_node,NULL,BAD_CAST "member", NULL); |
1982 | char *str = NULL; |
1983 | |
1984 | switch(member->type) { |
1985 | case NODE: |
1986 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "node"); |
1987 | str = g_strdup_printf("%ld", member->node->id); |
1988 | break; |
1989 | |
1990 | case WAY: |
1991 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "way"); |
1992 | str = g_strdup_printf("%ld", member->way->id); |
1993 | break; |
1994 | |
1995 | case RELATION: |
1996 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "relation"); |
1997 | str = g_strdup_printf("%ld", member->relation->id); |
1998 | break; |
1999 | |
2000 | default: |
2001 | break; |
2002 | } |
2003 | |
2004 | if(str) { |
2005 | xmlNewProp(m_node, BAD_CAST "ref", BAD_CAST str); |
2006 | g_free(str); |
2007 | } |
2008 | |
2009 | if(member->role) |
2010 | xmlNewProp(m_node, BAD_CAST "role", BAD_CAST member->role); |
2011 | else |
2012 | xmlNewProp(m_node, BAD_CAST "role", BAD_CAST ""); |
2013 | |
2014 | member = member->next; |
2015 | } |
2016 | osm_generate_tags(relation->tag, rel_node); |
2017 | } |
2018 | break; |
2019 | |
2020 | default: |
2021 | printf("neither NODE nor WAY nor RELATION\n"); |
2022 | g_assert(0); |
2023 | break; |
2024 | } |
2025 | |
2026 | xmlDocDumpFormatMemoryEnc(doc, &result, &len, "UTF-8", 1); |
2027 | xmlFreeDoc(doc); |
2028 | xmlCleanupParser(); |
2029 | |
2030 | // puts("xml encoding result:"); |
2031 | // puts((char*)result); |
2032 | |
2033 | return (char*)result; |
2034 | } |
2035 | |
2036 | /* build xml representation for a node */ |
2037 | char *osm_generate_xml_node(osm_t *osm, node_t *node) { |
2038 | return osm_generate_xml(osm, NODE, node); |
2039 | } |
2040 | |
2041 | /* build xml representation for a way */ |
2042 | char *osm_generate_xml_way(osm_t *osm, way_t *way) { |
2043 | return osm_generate_xml(osm, WAY, way); |
2044 | } |
2045 | |
2046 | /* build xml representation for a relation */ |
2047 | char *osm_generate_xml_relation(osm_t *osm, relation_t *relation) { |
2048 | return osm_generate_xml(osm, RELATION, relation); |
2049 | } |
2050 | |
2051 | /* the following three functions are eating much CPU power */ |
2052 | /* as they search the objects lists. Hashing is supposed to help */ |
2053 | node_t *osm_get_node_by_id(osm_t *osm, item_id_t id) { |
2054 | if(id > 0 && osm->node_hash) { |
2055 | // use hash table if present |
2056 | hash_item_t *item = osm->node_hash->hash[ID2HASH(id)]; |
2057 | while(item) { |
2058 | if(item->data.node->id == id) |
2059 | return item->data.node; |
2060 | |
2061 | item = item->next; |
2062 | } |
2063 | } |
2064 | |
2065 | /* use linear search if no hash tables are present or search in hash table failed */ |
2066 | node_t *node = osm->node; |
2067 | while(node) { |
2068 | if(node->id == id) |
2069 | return node; |
2070 | |
2071 | node = node->next; |
2072 | } |
2073 | |
2074 | return NULL; |
2075 | } |
2076 | |
2077 | way_t *osm_get_way_by_id(osm_t *osm, item_id_t id) { |
2078 | if(id > 0 && osm->way_hash) { |
2079 | // use hash table if present |
2080 | hash_item_t *item = osm->way_hash->hash[ID2HASH(id)]; |
2081 | while(item) { |
2082 | if(item->data.way->id == id) |
2083 | return item->data.way; |
2084 | |
2085 | item = item->next; |
2086 | } |
2087 | } |
2088 | |
2089 | /* use linear search if no hash tables are present or search on hash table failed */ |
2090 | way_t *way = osm->way; |
2091 | while(way) { |
2092 | if(way->id == id) |
2093 | return way; |
2094 | |
2095 | way = way->next; |
2096 | } |
2097 | |
2098 | return NULL; |
2099 | } |
2100 | |
2101 | relation_t *osm_get_relation_by_id(osm_t *osm, item_id_t id) { |
2102 | // use linear search |
2103 | relation_t *relation = osm->relation; |
2104 | while(relation) { |
2105 | if(relation->id == id) |
2106 | return relation; |
2107 | |
2108 | relation = relation->next; |
2109 | } |
2110 | |
2111 | return NULL; |
2112 | } |
2113 | |
2114 | /* ---------- edit functions ------------- */ |
2115 | |
2116 | item_id_t osm_new_way_id(osm_t *osm) { |
2117 | item_id_t id = -1; |
2118 | |
2119 | while(TRUE) { |
2120 | gboolean found = FALSE; |
2121 | way_t *way = osm->way; |
2122 | while(way) { |
2123 | if(way->id == id) |
2124 | found = TRUE; |
2125 | |
2126 | way = way->next; |
2127 | } |
2128 | |
2129 | /* no such id so far -> use it */ |
2130 | if(!found) return id; |
2131 | |
2132 | id--; |
2133 | } |
2134 | g_assert(0); |
2135 | return 0; |
2136 | } |
2137 | |
2138 | item_id_t osm_new_node_id(osm_t *osm) { |
2139 | item_id_t id = -1; |
2140 | |
2141 | while(TRUE) { |
2142 | gboolean found = FALSE; |
2143 | node_t *node = osm->node; |
2144 | while(node) { |
2145 | if(node->id == id) |
2146 | found = TRUE; |
2147 | |
2148 | node = node->next; |
2149 | } |
2150 | |
2151 | /* no such id so far -> use it */ |
2152 | if(!found) return id; |
2153 | |
2154 | id--; |
2155 | } |
2156 | g_assert(0); |
2157 | return 0; |
2158 | } |
2159 | |
2160 | item_id_t osm_new_relation_id(osm_t *osm) { |
2161 | item_id_t id = -1; |
2162 | |
2163 | while(TRUE) { |
2164 | gboolean found = FALSE; |
2165 | relation_t *relation = osm->relation; |
2166 | while(relation) { |
2167 | if(relation->id == id) |
2168 | found = TRUE; |
2169 | |
2170 | relation = relation->next; |
2171 | } |
2172 | |
2173 | /* no such id so far -> use it */ |
2174 | if(!found) return id; |
2175 | |
2176 | id--; |
2177 | } |
2178 | g_assert(0); |
2179 | return 0; |
2180 | } |
2181 | |
2182 | node_t *osm_node_new(osm_t *osm, gint x, gint y) { |
2183 | printf("Creating new node\n"); |
2184 | |
2185 | node_t *node = g_new0(node_t, 1); |
2186 | node->lpos.x = x; |
2187 | node->lpos.y = y; |
2188 | node->visible = TRUE; |
2189 | node->time = time(NULL); |
2190 | |
2191 | /* add created_by tag */ |
2192 | node->tag = g_new0(tag_t, 1); |
2193 | node->tag->key = g_strdup("created_by"); |
2194 | node->tag->value = g_strdup(PACKAGE " v" VERSION); |
2195 | |
2196 | /* convert screen position back to ll */ |
2197 | lpos2pos(osm->bounds, &node->lpos, &node->pos); |
2198 | |
2199 | printf(" new at %d %d (%f %f)\n", |
2200 | node->lpos.x, node->lpos.y, node->pos.lat, node->pos.lon); |
2201 | |
2202 | return node; |
2203 | } |
2204 | |
2205 | |
2206 | void osm_node_attach(osm_t *osm, node_t *node) { |
2207 | printf("Attaching node\n"); |
2208 | |
2209 | node->id = osm_new_node_id(osm); |
2210 | node->flags = OSM_FLAG_NEW; |
2211 | |
2212 | /* attach to end of node list */ |
2213 | node_t **lnode = &osm->node; |
2214 | while(*lnode) lnode = &(*lnode)->next; |
2215 | *lnode = node; |
2216 | } |
2217 | |
2218 | void osm_node_restore(osm_t *osm, node_t *node) { |
2219 | printf("Restoring node\n"); |
2220 | |
2221 | /* attach to end of node list */ |
2222 | node_t **lnode = &osm->node; |
2223 | while(*lnode) lnode = &(*lnode)->next; |
2224 | *lnode = node; |
2225 | } |
2226 | |
2227 | way_t *osm_way_new(void) { |
2228 | printf("Creating new way\n"); |
2229 | |
2230 | way_t *way = g_new0(way_t, 1); |
2231 | way->visible = TRUE; |
2232 | way->flags = OSM_FLAG_NEW; |
2233 | way->time = time(NULL); |
2234 | |
2235 | /* add created_by tag */ |
2236 | way->tag = g_new0(tag_t, 1); |
2237 | way->tag->key = g_strdup("created_by"); |
2238 | way->tag->value = g_strdup(PACKAGE " v" VERSION); |
2239 | |
2240 | return way; |
2241 | } |
2242 | |
2243 | void osm_way_attach(osm_t *osm, way_t *way) { |
2244 | printf("Attaching way\n"); |
2245 | |
2246 | way->id = osm_new_way_id(osm); |
2247 | way->flags = OSM_FLAG_NEW; |
2248 | |
2249 | /* attach to end of way list */ |
2250 | way_t **lway = &osm->way; |
2251 | while(*lway) lway = &(*lway)->next; |
2252 | *lway = way; |
2253 | } |
2254 | |
2255 | /* returns pointer to chain of ways affected by this deletion */ |
2256 | way_chain_t *osm_node_delete(osm_t *osm, icon_t **icon, |
2257 | node_t *node, gboolean permanently, |
2258 | gboolean affect_ways) { |
2259 | way_chain_t *way_chain = NULL, **cur_way_chain = &way_chain; |
2260 | |
2261 | /* new nodes aren't stored on the server and are just deleted permanently */ |
2262 | if(node->flags & OSM_FLAG_NEW) { |
2263 | printf("About to delete NEW node #%ld -> force permanent delete\n", |
2264 | node->id); |
2265 | permanently = TRUE; |
2266 | } |
2267 | |
2268 | /* first remove node from all ways using it */ |
2269 | way_t *way = osm->way; |
2270 | while(way) { |
2271 | node_chain_t **chain = &(way->node_chain); |
2272 | gboolean modified = FALSE; |
2273 | while(*chain) { |
2274 | /* remove node from chain */ |
2275 | if(node == (*chain)->node) { |
2276 | modified = TRUE; |
2277 | if(affect_ways) { |
2278 | node_chain_t *next = (*chain)->next; |
2279 | g_free(*chain); |
2280 | *chain = next; |
2281 | } else |
2282 | chain = &((*chain)->next); |
2283 | } else |
2284 | chain = &((*chain)->next); |
2285 | } |
2286 | |
2287 | if(modified) { |
2288 | way->flags |= OSM_FLAG_DIRTY; |
2289 | |
2290 | /* and add the way to the list of affected ways */ |
2291 | *cur_way_chain = g_new0(way_chain_t, 1); |
2292 | (*cur_way_chain)->way = way; |
2293 | cur_way_chain = &((*cur_way_chain)->next); |
2294 | } |
2295 | |
2296 | way = way->next; |
2297 | } |
2298 | |
2299 | if(!permanently) { |
2300 | printf("mark node #%ld as deleted\n", node->id); |
2301 | node->flags |= OSM_FLAG_DELETED; |
2302 | } else { |
2303 | printf("permanently delete node #%ld\n", node->id); |
2304 | |
2305 | /* remove it from the chain */ |
2306 | node_t **cnode = &osm->node; |
2307 | int found = 0; |
2308 | |
2309 | while(*cnode) { |
2310 | if(*cnode == node) { |
2311 | found++; |
2312 | *cnode = (*cnode)->next; |
2313 | |
2314 | osm_node_free(icon, node); |
2315 | } else |
2316 | cnode = &((*cnode)->next); |
2317 | } |
2318 | g_assert(found == 1); |
2319 | } |
2320 | |
2321 | return way_chain; |
2322 | } |
2323 | |
2324 | guint osm_way_number_of_nodes(way_t *way) { |
2325 | guint nodes = 0; |
2326 | node_chain_t *chain = way->node_chain; |
2327 | while(chain) { |
2328 | nodes++; |
2329 | chain = chain->next; |
2330 | } |
2331 | return nodes; |
2332 | } |
2333 | |
2334 | /* return all relations a node is in */ |
2335 | relation_chain_t *osm_node_to_relation(osm_t *osm, node_t *node) { |
2336 | relation_chain_t *rel_chain = NULL, **cur_rel_chain = &rel_chain; |
2337 | |
2338 | relation_t *relation = osm->relation; |
2339 | while(relation) { |
2340 | gboolean is_member = FALSE; |
2341 | |
2342 | member_t *member = relation->member; |
2343 | while(member) { |
2344 | switch(member->type) { |
2345 | case NODE: |
2346 | /* nodes are checked directly */ |
2347 | if(member->node == node) |
2348 | is_member = TRUE; |
2349 | break; |
2350 | |
2351 | case WAY: { |
2352 | /* ways have to be checked for the nodes they consist of */ |
2353 | node_chain_t *chain = member->way->node_chain; |
2354 | while(chain && !is_member) { |
2355 | if(chain->node == node) |
2356 | is_member = TRUE; |
2357 | |
2358 | chain = chain->next; |
2359 | } |
2360 | } break; |
2361 | |
2362 | default: |
2363 | break; |
2364 | } |
2365 | member = member->next; |
2366 | } |
2367 | |
2368 | /* node is a member of this relation, so move it to the member chain */ |
2369 | if(is_member) { |
2370 | *cur_rel_chain = g_new0(relation_chain_t, 1); |
2371 | (*cur_rel_chain)->relation = relation; |
2372 | cur_rel_chain = &((*cur_rel_chain)->next); |
2373 | } |
2374 | |
2375 | relation = relation->next; |
2376 | } |
2377 | |
2378 | return rel_chain; |
2379 | } |
2380 | |
2381 | /* return all relations a way is in */ |
2382 | relation_chain_t *osm_way_to_relation(osm_t *osm, way_t *way) { |
2383 | relation_chain_t *rel_chain = NULL, **cur_rel_chain = &rel_chain; |
2384 | |
2385 | relation_t *relation = osm->relation; |
2386 | while(relation) { |
2387 | gboolean is_member = FALSE; |
2388 | |
2389 | member_t *member = relation->member; |
2390 | while(member) { |
2391 | switch(member->type) { |
2392 | case WAY: { |
2393 | /* ways can be check directly */ |
2394 | if(member->way == way) |
2395 | is_member = TRUE; |
2396 | } break; |
2397 | |
2398 | default: |
2399 | break; |
2400 | } |
2401 | member = member->next; |
2402 | } |
2403 | |
2404 | /* way is a member of this relation, so move it to the member chain */ |
2405 | if(is_member) { |
2406 | *cur_rel_chain = g_new0(relation_chain_t, 1); |
2407 | (*cur_rel_chain)->relation = relation; |
2408 | cur_rel_chain = &((*cur_rel_chain)->next); |
2409 | } |
2410 | |
2411 | relation = relation->next; |
2412 | } |
2413 | |
2414 | return rel_chain; |
2415 | } |
2416 | |
2417 | /* return all ways a node is in */ |
2418 | way_chain_t *osm_node_to_way(osm_t *osm, node_t *node) { |
2419 | way_chain_t *chain = NULL, **cur_chain = &chain; |
2420 | |
2421 | way_t *way = osm->way; |
2422 | while(way) { |
2423 | gboolean is_member = FALSE; |
2424 | |
2425 | node_chain_t *node_chain = way->node_chain; |
2426 | while(node_chain) { |
2427 | if(node_chain->node == node) |
2428 | is_member = TRUE; |
2429 | |
2430 | node_chain = node_chain->next; |
2431 | } |
2432 | |
2433 | /* node is a member of this relation, so move it to the member chain */ |
2434 | if(is_member) { |
2435 | *cur_chain = g_new0(way_chain_t, 1); |
2436 | (*cur_chain)->way = way; |
2437 | cur_chain = &((*cur_chain)->next); |
2438 | } |
2439 | |
2440 | way = way->next; |
2441 | } |
2442 | |
2443 | return chain; |
2444 | } |
2445 | |
2446 | gboolean osm_position_within_bounds(osm_t *osm, gint x, gint y) { |
2447 | if((x < osm->bounds->min.x) || (x > osm->bounds->max.x)) return FALSE; |
2448 | if((y < osm->bounds->min.y) || (y > osm->bounds->max.y)) return FALSE; |
2449 | return TRUE; |
2450 | } |
2451 | |
2452 | /* remove the given node from all relations. used if the node is to */ |
2453 | /* be deleted */ |
2454 | void osm_node_remove_from_relation(osm_t *osm, node_t *node) { |
2455 | relation_t *relation = osm->relation; |
2456 | printf("removing node #%ld from all relations:\n", node->id); |
2457 | |
2458 | while(relation) { |
2459 | member_t **member = &relation->member; |
2460 | while(*member) { |
2461 | if(((*member)->type == NODE) && |
2462 | ((*member)->node == node)) { |
2463 | |
2464 | printf(" from relation #%ld\n", relation->id); |
2465 | |
2466 | member_t *cur = *member; |
2467 | *member = (*member)->next; |
2468 | osm_member_free(cur); |
2469 | |
2470 | relation->flags |= OSM_FLAG_DIRTY; |
2471 | } else |
2472 | member = &(*member)->next; |
2473 | } |
2474 | relation = relation->next; |
2475 | } |
2476 | } |
2477 | |
2478 | /* remove the given way from all relations */ |
2479 | void osm_way_remove_from_relation(osm_t *osm, way_t *way) { |
2480 | relation_t *relation = osm->relation; |
2481 | printf("removing way #%ld from all relations:\n", way->id); |
2482 | |
2483 | while(relation) { |
2484 | member_t **member = &relation->member; |
2485 | while(*member) { |
2486 | if(((*member)->type == WAY) && |
2487 | ((*member)->way == way)) { |
2488 | |
2489 | printf(" from relation #%ld\n", relation->id); |
2490 | |
2491 | member_t *cur = *member; |
2492 | *member = (*member)->next; |
2493 | osm_member_free(cur); |
2494 | |
2495 | relation->flags |= OSM_FLAG_DIRTY; |
2496 | } else |
2497 | member = &(*member)->next; |
2498 | } |
2499 | relation = relation->next; |
2500 | } |
2501 | } |
2502 | |
2503 | relation_t *osm_relation_new(void) { |
2504 | printf("Creating new relation\n"); |
2505 | |
2506 | relation_t *relation = g_new0(relation_t, 1); |
2507 | relation->visible = TRUE; |
2508 | relation->flags = OSM_FLAG_NEW; |
2509 | relation->time = time(NULL); |
2510 | |
2511 | /* add created_by tag */ |
2512 | relation->tag = g_new0(tag_t, 1); |
2513 | relation->tag->key = g_strdup("created_by"); |
2514 | relation->tag->value = g_strdup(PACKAGE " v" VERSION); |
2515 | |
2516 | return relation; |
2517 | } |
2518 | |
2519 | void osm_relation_attach(osm_t *osm, relation_t *relation) { |
2520 | printf("Attaching relation\n"); |
2521 | |
2522 | relation->id = osm_new_relation_id(osm); |
2523 | relation->flags = OSM_FLAG_NEW; |
2524 | |
2525 | /* attach to end of relation list */ |
2526 | relation_t **lrelation = &osm->relation; |
2527 | while(*lrelation) lrelation = &(*lrelation)->next; |
2528 | *lrelation = relation; |
2529 | } |
2530 | |
2531 | |
2532 | void osm_way_delete(osm_t *osm, icon_t **icon, |
2533 | way_t *way, gboolean permanently) { |
2534 | |
2535 | /* new ways aren't stored on the server and are just deleted permanently */ |
2536 | if(way->flags & OSM_FLAG_NEW) { |
2537 | printf("About to delete NEW way #%ld -> force permanent delete\n", |
2538 | way->id); |
2539 | permanently = TRUE; |
2540 | } |
2541 | |
2542 | /* delete all nodes that aren't in other use now */ |
2543 | node_chain_t **chain = &way->node_chain; |
2544 | while(*chain) { |
2545 | |
2546 | (*chain)->node->ways--; |
2547 | printf("checking node #%ld (still used by %d)\n", |
2548 | (*chain)->node->id, (*chain)->node->ways); |
2549 | |
2550 | /* this node must only be part of this way */ |
2551 | if(!(*chain)->node->ways) { |
2552 | /* delete this node, but don't let this actually affect the */ |
2553 | /* associated ways as the only such way is the oen we are currently */ |
2554 | /* deleting */ |
2555 | way_chain_t *way_chain = |
2556 | osm_node_delete(osm, icon, (*chain)->node, FALSE, FALSE); |
2557 | g_assert(way_chain); |
2558 | while(way_chain) { |
2559 | way_chain_t *way_next = way_chain->next; |
2560 | g_assert(way_chain->way == way); |
2561 | g_free(way_chain); |
2562 | way_chain = way_next; |
2563 | } |
2564 | } |
2565 | |
2566 | node_chain_t *cur = (*chain); |
2567 | *chain = cur->next; |
2568 | g_free(cur); |
2569 | } |
2570 | way->node_chain = NULL; |
2571 | |
2572 | if(!permanently) { |
2573 | printf("mark way #%ld as deleted\n", way->id); |
2574 | way->flags |= OSM_FLAG_DELETED; |
2575 | } else { |
2576 | printf("permanently delete way #%ld\n", way->id); |
2577 | |
2578 | /* remove it from the chain */ |
2579 | way_t **cway = &osm->way; |
2580 | int found = 0; |
2581 | |
2582 | while(*cway) { |
2583 | if(*cway == way) { |
2584 | found++; |
2585 | *cway = (*cway)->next; |
2586 | |
2587 | osm_way_free(way); |
2588 | } else |
2589 | cway = &((*cway)->next); |
2590 | } |
2591 | g_assert(found == 1); |
2592 | } |
2593 | } |
2594 | |
2595 | void osm_relation_delete(osm_t *osm, relation_t *relation, |
2596 | gboolean permanently) { |
2597 | |
2598 | /* new relations aren't stored on the server and are just */ |
2599 | /* deleted permanently */ |
2600 | if(relation->flags & OSM_FLAG_NEW) { |
2601 | printf("About to delete NEW relation #%ld -> force permanent delete\n", |
2602 | relation->id); |
2603 | permanently = TRUE; |
2604 | } |
2605 | |
2606 | /* the deletion of a relation doesn't affect the members as they */ |
2607 | /* don't have any reference to the relation they are part of */ |
2608 | |
2609 | if(!permanently) { |
2610 | printf("mark relation #%ld as deleted\n", relation->id); |
2611 | relation->flags |= OSM_FLAG_DELETED; |
2612 | } else { |
2613 | printf("permanently delete relation #%ld\n", relation->id); |
2614 | |
2615 | /* remove it from the chain */ |
2616 | relation_t **crelation = &osm->relation; |
2617 | int found = 0; |
2618 | |
2619 | while(*crelation) { |
2620 | if(*crelation == relation) { |
2621 | found++; |
2622 | *crelation = (*crelation)->next; |
2623 | |
2624 | osm_relation_free(relation); |
2625 | } else |
2626 | crelation = &((*crelation)->next); |
2627 | } |
2628 | g_assert(found == 1); |
2629 | } |
2630 | } |
2631 | |
2632 | void osm_way_revert(way_t *way) { |
2633 | node_chain_t *new = NULL; |
2634 | |
2635 | /* walk old chain first to last */ |
2636 | node_chain_t *old = way->node_chain; |
2637 | while(old) { |
2638 | node_chain_t *next = old->next; |
2639 | |
2640 | /* and prepend each node to the new chain */ |
2641 | old->next = new; |
2642 | new = old; |
2643 | |
2644 | old = next; |
2645 | } |
2646 | |
2647 | way->node_chain = new; |
2648 | } |
2649 | |
2650 | node_t *osm_way_get_first_node(way_t *way) { |
2651 | node_chain_t *chain = way->node_chain; |
2652 | if(!chain) return NULL; |
2653 | return chain->node; |
2654 | } |
2655 | |
2656 | node_t *osm_way_get_last_node(way_t *way) { |
2657 | node_chain_t *chain = way->node_chain; |
2658 | |
2659 | while(chain && chain->next) chain=chain->next; |
2660 | |
2661 | if(!chain) return NULL; |
2662 | |
2663 | return chain->node; |
2664 | } |
2665 | |
2666 | void osm_way_rotate(way_t *way, gint offset) { |
2667 | if(!offset) return; |
2668 | |
2669 | /* needs at least two nodes to work properly */ |
2670 | g_assert(way->node_chain); |
2671 | g_assert(way->node_chain->next); |
2672 | |
2673 | while(offset--) { |
2674 | node_chain_t *chain = way->node_chain; |
2675 | chain->node->ways--; // reduce way count of old start/end node |
2676 | |
2677 | /* move all nodes ahead one chain element ... */ |
2678 | while(chain->next) { |
2679 | chain->node = chain->next->node; |
2680 | chain = chain->next; |
2681 | } |
2682 | |
2683 | /* ... and make last one same as first one */ |
2684 | chain->node = way->node_chain->node; |
2685 | chain->node->ways++; // increase way count of new start/end node |
2686 | } |
2687 | } |
2688 | |
2689 | tag_t *osm_tags_copy(tag_t *src_tag, gboolean update_creator) { |
2690 | tag_t *new_tags = NULL; |
2691 | tag_t **dst_tag = &new_tags; |
2692 | |
2693 | while(src_tag) { |
2694 | *dst_tag = g_new0(tag_t, 1); |
2695 | (*dst_tag)->key = g_strdup(src_tag->key); |
2696 | if(update_creator && (strcasecmp(src_tag->key, "created_by") == 0)) |
2697 | (*dst_tag)->value = g_strdup(PACKAGE " v" VERSION); |
2698 | else |
2699 | (*dst_tag)->value = g_strdup(src_tag->value); |
2700 | |
2701 | dst_tag = &(*dst_tag)->next; |
2702 | src_tag = src_tag->next; |
2703 | } |
2704 | |
2705 | return new_tags; |
2706 | } |
2707 | |
2708 | /* return plain text of type */ |
2709 | char *osm_type_string(type_t type) { |
2710 | const struct { type_t type; char *name; } types[] = { |
2711 | { ILLEGAL, "illegal" }, |
2712 | { NODE, "node" }, |
2713 | { WAY, "way" }, |
2714 | { RELATION, "relation" }, |
2715 | { NODE_ID, "node id" }, |
2716 | { WAY_ID, "way id" }, |
2717 | { RELATION_ID, "relation id" }, |
2718 | { 0, NULL } |
2719 | }; |
2720 | |
2721 | int i; |
2722 | for(i=0;types[i].name;i++) |
2723 | if(type == types[i].type) |
2724 | return types[i].name; |
2725 | |
2726 | return NULL; |
2727 | } |
2728 | |
2729 | char *osm_object_string(type_t type, void *object) { |
2730 | char *type_str = osm_type_string(type); |
2731 | |
2732 | if(!object) |
2733 | return g_strdup_printf("%s #<invalid>", type_str); |
2734 | |
2735 | switch(type) { |
2736 | case ILLEGAL: |
2737 | return g_strdup_printf("%s #<unspec>", type_str); |
2738 | break; |
2739 | case NODE: |
2740 | return g_strdup_printf("%s #%ld", type_str, ((node_t*)object)->id); |
2741 | break; |
2742 | case WAY: |
2743 | return g_strdup_printf("%s #%ld", type_str, ((way_t*)object)->id); |
2744 | break; |
2745 | case RELATION: |
2746 | return g_strdup_printf("%s #%ld", type_str, ((relation_t*)object)->id); |
2747 | break; |
2748 | case NODE_ID: |
2749 | case WAY_ID: |
2750 | case RELATION_ID: |
2751 | return g_strdup_printf("%s #%ld", type_str, ((item_id_t)object)); |
2752 | break; |
2753 | } |
2754 | return NULL; |
2755 | } |
2756 | |
2757 | char *osm_id_string(type_t type, void *object) { |
2758 | if(!object) return NULL; |
2759 | |
2760 | switch(type) { |
2761 | case ILLEGAL: |
2762 | return NULL; |
2763 | break; |
2764 | case NODE: |
2765 | return g_strdup_printf("#%ld", ((node_t*)object)->id); |
2766 | break; |
2767 | case WAY: |
2768 | return g_strdup_printf("#%ld", ((way_t*)object)->id); |
2769 | break; |
2770 | case RELATION: |
2771 | return g_strdup_printf("#%ld", ((relation_t*)object)->id); |
2772 | break; |
2773 | case NODE_ID: |
2774 | case WAY_ID: |
2775 | case RELATION_ID: |
2776 | return g_strdup_printf("#%ld", ((item_id_t)object)); |
2777 | break; |
2778 | } |
2779 | return NULL; |
2780 | } |
2781 | |
2782 | tag_t *osm_object_get_tags(type_t type, void *object) { |
2783 | if(!object) return NULL; |
2784 | |
2785 | switch(type) { |
2786 | case ILLEGAL: |
2787 | return NULL; |
2788 | break; |
2789 | case NODE: |
2790 | return ((node_t*)object)->tag; |
2791 | break; |
2792 | case WAY: |
2793 | return ((way_t*)object)->tag; |
2794 | break; |
2795 | case RELATION: |
2796 | return ((relation_t*)object)->tag; |
2797 | break; |
2798 | case NODE_ID: |
2799 | case WAY_ID: |
2800 | case RELATION_ID: |
2801 | return NULL; |
2802 | break; |
2803 | } |
2804 | return NULL; |
2805 | } |
2806 | |
2807 | |
2808 | gint osm_relation_members_num(relation_t *relation) { |
2809 | gint num = 0; |
2810 | member_t *member = relation->member; |
2811 | while(member) { |
2812 | num++; |
2813 | member = member->next; |
2814 | } |
2815 | return num; |
2816 | } |
2817 | |
2818 | // vim:et:ts=8:sw=2:sts=2:ai |