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Track handling redone
1 | harbaum | 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 | achadwick | 28 | #include "banner.h" |
33 | harbaum | 1 | |
34 | #ifndef LIBXML_TREE_ENABLED | ||
35 | #error "Tree not enabled in libxml" | ||
36 | #endif | ||
37 | |||
38 | harbaum | 9 | /* ------------------------- bounds handling --------------------- */ |
39 | harbaum | 1 | |
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 | harbaum | 39 | if(!name) return NULL; |
73 | harbaum | 1 | |
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 | harbaum | 39 | if(!str) return 0; |
95 | |||
96 | harbaum | 1 | 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 | harbaum | 42 | node_chain->node = osm_get_node_by_id(osm, id); |
342 | harbaum | 1 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
343 | harbaum | 42 | else node_chain->node->ways++; |
344 | harbaum | 1 | |
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 | harbaum | 73 | 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 | harbaum | 1 | static void osm_relations_free(relation_t *relation) { |
376 | while(relation) { | ||
377 | relation_t *next = relation->next; | ||
378 | harbaum | 73 | osm_relation_free(relation); |
379 | harbaum | 1 | 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 | harbaum | 155 | switch(member->object.type) { |
397 | harbaum | 1 | case ILLEGAL: |
398 | case NODE_ID: | ||
399 | case WAY_ID: | ||
400 | case RELATION_ID: | ||
401 | break; | ||
402 | |||
403 | case NODE: | ||
404 | harbaum | 155 | if(member->object.node) |
405 | harbaum | 1 | printf(" Member: Node, id = %lu, role = %s\n", |
406 | harbaum | 155 | member->object.node->id, member->role); |
407 | harbaum | 1 | break; |
408 | |||
409 | case WAY: | ||
410 | harbaum | 155 | if(member->object.way) |
411 | harbaum | 1 | printf(" Member: Way, id = %lu, role = %s\n", |
412 | harbaum | 155 | member->object.way->id, member->role); |
413 | harbaum | 1 | break; |
414 | |||
415 | case RELATION: | ||
416 | harbaum | 155 | if(member->object.relation) |
417 | harbaum | 1 | printf(" Member: Relation, id = %lu, role = %s\n", |
418 | harbaum | 155 | member->object.relation->id, member->role); |
419 | harbaum | 1 | 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 | harbaum | 155 | member->object.type = ILLEGAL; |
440 | harbaum | 1 | |
441 | if((prop = (char*)xmlGetProp(a_node, (unsigned char*)"type"))) { | ||
442 | harbaum | 155 | 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 | harbaum | 1 | 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 | harbaum | 155 | switch(member->object.type) { |
452 | harbaum | 1 | case ILLEGAL: |
453 | printf("Unable to store illegal type\n"); | ||
454 | break; | ||
455 | |||
456 | case WAY: | ||
457 | /* search matching way */ | ||
458 | harbaum | 155 | 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 | harbaum | 1 | } |
463 | break; | ||
464 | |||
465 | case NODE: | ||
466 | /* search matching node */ | ||
467 | harbaum | 155 | 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 | harbaum | 1 | } |
472 | break; | ||
473 | |||
474 | case RELATION: | ||
475 | /* search matching relation */ | ||
476 | harbaum | 155 | 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 | harbaum | 1 | } |
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 | harbaum | 42 | /* 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 | harbaum | 1 | void osm_free(icon_t **icon, osm_t *osm) { |
526 | if(!osm) return; | ||
527 | |||
528 | harbaum | 42 | osm_hash_tables_free(osm); |
529 | |||
530 | harbaum | 1 | 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 | harbaum | 78 | /* -------------------------- stream parser ------------------- */ |
547 | harbaum | 8 | |
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 | harbaum | 42 | /* 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 | harbaum | 8 | /* 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 | harbaum | 42 | node_chain->node = osm_get_node_by_id(osm, id); |
756 | harbaum | 8 | if(!node_chain->node) printf("Node id %lu not found\n", id); |
757 | harbaum | 42 | else node_chain->node->ways++; |
758 | harbaum | 8 | |
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 | harbaum | 42 | /* 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 | harbaum | 8 | /* 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 | harbaum | 155 | member->object.type = ILLEGAL; |
840 | harbaum | 8 | |
841 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "type"))) { | ||
842 | harbaum | 155 | 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 | harbaum | 8 | xmlFree(prop); |
846 | } | ||
847 | |||
848 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) { | ||
849 | item_id_t id = strtoul(prop, NULL, 10); | ||
850 | |||
851 | harbaum | 155 | switch(member->object.type) { |
852 | harbaum | 8 | case ILLEGAL: |
853 | printf("Unable to store illegal type\n"); | ||
854 | break; | ||
855 | |||
856 | case WAY: | ||
857 | /* search matching way */ | ||
858 | harbaum | 155 | 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 | harbaum | 8 | } |
863 | break; | ||
864 | |||
865 | case NODE: | ||
866 | /* search matching node */ | ||
867 | harbaum | 155 | 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 | harbaum | 8 | } |
872 | break; | ||
873 | |||
874 | case RELATION: | ||
875 | /* search matching relation */ | ||
876 | harbaum | 155 | 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 | harbaum | 8 | } |
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 | achadwick | 35 | if(strcasecmp(subname, "member") == 0) { |
945 | harbaum | 8 | *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 | harbaum | 42 | osm->node_hash = g_new0(hash_table_t, 1); |
963 | osm->way_hash = g_new0(hash_table_t, 1); | ||
964 | harbaum | 8 | |
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 | achadwick | 28 | int num_elems = 0; |
976 | const int tick_every = 50; // Balance responsive appearance with performance. | ||
977 | harbaum | 8 | 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 | achadwick | 28 | |
1014 | if (num_elems++ > tick_every) { | ||
1015 | num_elems = 0; | ||
1016 | banner_busy_tick(); | ||
1017 | } | ||
1018 | harbaum | 8 | } |
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 | harbaum | 78 | /* ----------------------- end of stream parser ------------------- */ |
1047 | harbaum | 8 | |
1048 | #include <sys/time.h> | ||
1049 | |||
1050 | harbaum | 1 | osm_t *osm_parse(char *filename) { |
1051 | |||
1052 | harbaum | 8 | struct timeval start; |
1053 | gettimeofday(&start, NULL); | ||
1054 | |||
1055 | harbaum | 1 | LIBXML_TEST_VERSION; |
1056 | |||
1057 | harbaum | 8 | // 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 | harbaum | 1 | } |
1070 | |||
1071 | gboolean osm_sanity_check(GtkWidget *parent, osm_t *osm) { | ||
1072 | if(!osm->bounds) { | ||
1073 | achadwick | 6 | errorf(parent, _("Invalid data in OSM file:\n" |
1074 | harbaum | 1 | "Boundary box missing!")); |
1075 | return FALSE; | ||
1076 | } | ||
1077 | if(!osm->node) { | ||
1078 | achadwick | 6 | errorf(parent, _("Invalid data in OSM file:\n" |
1079 | harbaum | 1 | "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 | harbaum | 156 | g_ascii_formatd(str, sizeof(str), LL_FORMAT, node->pos.lat); |
1212 | harbaum | 1 | xmlNewProp(node_node, BAD_CAST "lat", BAD_CAST str); |
1213 | harbaum | 156 | g_ascii_formatd(str, sizeof(str), LL_FORMAT, node->pos.lon); |
1214 | harbaum | 1 | 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 | harbaum | 155 | switch(member->object.type) { |
1253 | harbaum | 1 | case NODE: |
1254 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "node"); | ||
1255 | harbaum | 155 | str = g_strdup_printf("%ld", member->object.node->id); |
1256 | harbaum | 1 | break; |
1257 | |||
1258 | case WAY: | ||
1259 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "way"); | ||
1260 | harbaum | 155 | str = g_strdup_printf("%ld", member->object.way->id); |
1261 | harbaum | 1 | break; |
1262 | |||
1263 | case RELATION: | ||
1264 | xmlNewProp(m_node, BAD_CAST "type", BAD_CAST "relation"); | ||
1265 | harbaum | 155 | str = g_strdup_printf("%ld", member->object.relation->id); |
1266 | harbaum | 1 | 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 | harbaum | 42 | /* the following three functions are eating much CPU power */ |
1320 | /* as they search the objects lists. Hashing is supposed to help */ | ||
1321 | harbaum | 1 | node_t *osm_get_node_by_id(osm_t *osm, item_id_t id) { |
1322 | harbaum | 42 | 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 | harbaum | 1 | node_t *node = osm->node; |
1335 | while(node) { | ||
1336 | if(node->id == id) | ||
1337 | return node; | ||
1338 | harbaum | 42 | |
1339 | harbaum | 1 | node = node->next; |
1340 | } | ||
1341 | harbaum | 42 | |
1342 | harbaum | 1 | return NULL; |
1343 | } | ||
1344 | |||
1345 | way_t *osm_get_way_by_id(osm_t *osm, item_id_t id) { | ||
1346 | harbaum | 42 | 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 | harbaum | 1 | way_t *way = osm->way; |
1359 | while(way) { | ||
1360 | if(way->id == id) | ||
1361 | return way; | ||
1362 | harbaum | 42 | |
1363 | harbaum | 1 | way = way->next; |
1364 | } | ||
1365 | harbaum | 42 | |
1366 | harbaum | 1 | return NULL; |
1367 | } | ||
1368 | |||
1369 | relation_t *osm_get_relation_by_id(osm_t *osm, item_id_t id) { | ||
1370 | harbaum | 42 | // use linear search |
1371 | harbaum | 1 | 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 | harbaum | 73 | 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 | harbaum | 1 | 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 | harbaum | 64 | 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 | harbaum | 1 | 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 | harbaum | 155 | switch(member->object.type) { |
1613 | harbaum | 1 | case NODE: |
1614 | /* nodes are checked directly */ | ||
1615 | harbaum | 155 | if(member->object.node == node) |
1616 | harbaum | 1 | is_member = TRUE; |
1617 | break; | ||
1618 | |||
1619 | case WAY: { | ||
1620 | /* ways have to be checked for the nodes they consist of */ | ||
1621 | harbaum | 155 | node_chain_t *chain = member->object.way->node_chain; |
1622 | harbaum | 1 | 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 | harbaum | 155 | switch(member->object.type) { |
1660 | harbaum | 1 | case WAY: { |
1661 | /* ways can be check directly */ | ||
1662 | harbaum | 155 | if(member->object.way == way) |
1663 | harbaum | 1 | 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 | harbaum | 8 | way = way->next; |
1709 | harbaum | 1 | } |
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 | harbaum | 155 | if(((*member)->object.type == NODE) && |
1730 | ((*member)->object.node == node)) { | ||
1731 | harbaum | 1 | |
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 | harbaum | 155 | if(((*member)->object.type == WAY) && |
1755 | ((*member)->object.way == way)) { | ||
1756 | harbaum | 1 | |
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 | harbaum | 73 | 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 | harbaum | 1 | 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 | harbaum | 75 | 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 | achadwick | 98 | void osm_way_reverse(way_t *way) { |
1901 | harbaum | 1 | 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 | achadwick | 98 | 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 | harbaum | 155 | if (member->object.type == WAY) { |
2009 | if (member->object.way == way) | ||
2010 | achadwick | 98 | break; |
2011 | } | ||
2012 | harbaum | 155 | if (member->object.type == WAY_ID) { |
2013 | if (member->object.id == way->id) | ||
2014 | achadwick | 98 | 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 | achadwick | 141 | if (member->role == NULL) { |
2021 | achadwick | 142 | printf("null role in route relation -> ignore\n"); |
2022 | achadwick | 141 | } |
2023 | else if (strcasecmp(member->role, DS_ROUTE_FORWARD) == 0) { | ||
2024 | achadwick | 98 | 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 | harbaum | 1 | 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 | harbaum | 54 | |
2108 | /* return plain text of type */ | ||
2109 | harbaum | 155 | char *osm_object_type_string(object_t *object) { |
2110 | harbaum | 54 | 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 | harbaum | 155 | if(object->type == types[i].type) |
2124 | harbaum | 54 | return types[i].name; |
2125 | |||
2126 | return NULL; | ||
2127 | } | ||
2128 | |||
2129 | harbaum | 155 | char *osm_object_string(object_t *object) { |
2130 | char *type_str = osm_object_type_string(object); | ||
2131 | harbaum | 54 | |
2132 | harbaum | 64 | if(!object) |
2133 | return g_strdup_printf("%s #<invalid>", type_str); | ||
2134 | |||
2135 | harbaum | 155 | switch(object->type) { |
2136 | harbaum | 64 | case ILLEGAL: |
2137 | return g_strdup_printf("%s #<unspec>", type_str); | ||
2138 | break; | ||
2139 | case NODE: | ||
2140 | harbaum | 155 | return g_strdup_printf("%s #%ld", type_str, object->node->id); |
2141 | harbaum | 64 | break; |
2142 | case WAY: | ||
2143 | harbaum | 155 | return g_strdup_printf("%s #%ld", type_str, object->way->id); |
2144 | harbaum | 64 | break; |
2145 | case RELATION: | ||
2146 | harbaum | 155 | return g_strdup_printf("%s #%ld", type_str, object->relation->id); |
2147 | harbaum | 64 | break; |
2148 | case NODE_ID: | ||
2149 | case WAY_ID: | ||
2150 | case RELATION_ID: | ||
2151 | harbaum | 155 | return g_strdup_printf("%s #%ld", type_str, object->id); |
2152 | harbaum | 64 | break; |
2153 | } | ||
2154 | return NULL; | ||
2155 | } | ||
2156 | |||
2157 | harbaum | 155 | char *osm_object_id_string(object_t *object) { |
2158 | harbaum | 76 | if(!object) return NULL; |
2159 | |||
2160 | harbaum | 155 | switch(object->type) { |
2161 | harbaum | 76 | case ILLEGAL: |
2162 | return NULL; | ||
2163 | break; | ||
2164 | case NODE: | ||
2165 | harbaum | 155 | return g_strdup_printf("#%ld", object->node->id); |
2166 | harbaum | 76 | break; |
2167 | case WAY: | ||
2168 | harbaum | 155 | return g_strdup_printf("#%ld", object->way->id); |
2169 | harbaum | 76 | break; |
2170 | case RELATION: | ||
2171 | harbaum | 155 | return g_strdup_printf("#%ld", object->relation->id); |
2172 | harbaum | 76 | break; |
2173 | case NODE_ID: | ||
2174 | case WAY_ID: | ||
2175 | case RELATION_ID: | ||
2176 | harbaum | 155 | return g_strdup_printf("#%ld", object->id); |
2177 | harbaum | 76 | break; |
2178 | } | ||
2179 | return NULL; | ||
2180 | } | ||
2181 | |||
2182 | harbaum | 155 | tag_t *osm_object_get_tags(object_t *object) { |
2183 | harbaum | 76 | if(!object) return NULL; |
2184 | |||
2185 | harbaum | 155 | switch(object->type) { |
2186 | harbaum | 76 | case ILLEGAL: |
2187 | return NULL; | ||
2188 | break; | ||
2189 | case NODE: | ||
2190 | harbaum | 155 | return object->node->tag; |
2191 | harbaum | 76 | break; |
2192 | case WAY: | ||
2193 | harbaum | 155 | return object->way->tag; |
2194 | harbaum | 76 | break; |
2195 | case RELATION: | ||
2196 | harbaum | 155 | return object->relation->tag; |
2197 | harbaum | 76 | 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 | harbaum | 153 | 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 | achadwick | 28 | // vim:et:ts=8:sw=2:sts=2:ai |