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1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. |
3 | * |
4 | * This file is part of GPXView. |
5 | * |
6 | * GPXView 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 | * GPXView 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 GPXView. 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 | #include <libxml/parser.h> |
26 | #include <libxml/tree.h> |
27 | |
28 | #include <libxml/xmlreader.h> |
29 | |
30 | #include <glib.h> |
31 | #include <glib/gstdio.h> |
32 | |
33 | #include <zlib.h> |
34 | |
35 | #include "gpxview.h" |
36 | #include "unzip.h" |
37 | |
38 | void gpx_free_wpt(wpt_t *wpt) { |
39 | if(wpt->id) xmlFree(wpt->id); |
40 | if(wpt->cmt) xmlFree(wpt->cmt); |
41 | if(wpt->desc) xmlFree(wpt->desc); |
42 | free(wpt); |
43 | } |
44 | |
45 | void gpx_free_log(log_t *log) { |
46 | if(log->finder) xmlFree(log->finder); |
47 | if(log->text) xmlFree(log->text); |
48 | free(log); |
49 | } |
50 | |
51 | void gpx_free_tb(tb_t *tb) { |
52 | if(tb->name) xmlFree(tb->name); |
53 | if(tb->ref) xmlFree(tb->ref); |
54 | free(tb); |
55 | } |
56 | |
57 | void gpx_free_cache(cache_t *cache) { |
58 | log_t *log = cache->log; |
59 | wpt_t *wpt = cache->wpt; |
60 | tb_t *tb = cache->tb; |
61 | |
62 | if(cache->id) xmlFree(cache->id); |
63 | if(cache->name) xmlFree(cache->name); |
64 | if(cache->owner) xmlFree(cache->owner); |
65 | if(cache->short_description) xmlFree(cache->short_description); |
66 | if(cache->long_description) xmlFree(cache->long_description); |
67 | if(cache->hint) xmlFree(cache->hint); |
68 | if(cache->url) xmlFree(cache->url); |
69 | |
70 | /* free all logs */ |
71 | while(log) { log_t *next = log->next; gpx_free_log(log); log = next; } |
72 | |
73 | /* free all waypoints */ |
74 | while(wpt) { wpt_t *next = wpt->next; gpx_free_wpt(wpt); wpt = next; } |
75 | |
76 | /* free all tbs */ |
77 | while(tb) { tb_t *next = tb->next; gpx_free_tb(tb); tb = next; } |
78 | |
79 | if(cache->notes) notes_free(cache->notes); |
80 | |
81 | free(cache); |
82 | } |
83 | |
84 | void gpx_free_caches(gpx_t *gpx) { |
85 | cache_t *cache = gpx->cache; |
86 | |
87 | /* free all caches */ |
88 | while(cache) { |
89 | cache_t *next = cache->next; |
90 | gpx_free_cache(cache); |
91 | cache = next; |
92 | } |
93 | |
94 | gpx->cache = NULL; |
95 | } |
96 | |
97 | void gpx_free(gpx_t *gpx) { |
98 | |
99 | if(gpx->name) xmlFree(gpx->name); |
100 | if(gpx->desc) xmlFree(gpx->desc); |
101 | if(gpx->filename) free(gpx->filename); |
102 | |
103 | gpx_free_caches(gpx); |
104 | |
105 | free(gpx); |
106 | } |
107 | |
108 | void gpx_free_all(gpx_t *gpx) { |
109 | while(gpx) { |
110 | gpx_t *next = gpx->next; |
111 | gpx_free(gpx); |
112 | gpx = next; |
113 | } |
114 | } |
115 | |
116 | static const char *cache_type_str[] = { "<Unknown>", |
117 | "Traditional Cache|Traditional|Geocache", "Multi-cache|Multi", |
118 | "Unknown Cache|Other", |
119 | "Virtual Cache|Virtual", "Webcam Cache|Webcam", "Event Cache|Event|Geocoins:", |
120 | "Letterbox Hybrid|Letterbox", "Earthcache", "Wherigo Cache", |
121 | "Mega-Event Cache", "Cache In Trash Out Event", |
122 | ""}; |
123 | |
124 | static const char *cache_container_str[] = { "<Unknown>", |
125 | "Regular", "Small", "Micro", "Not chosen|Unknown", |
126 | "Other", "Large", "Virtual" |
127 | ""}; |
128 | |
129 | static const char *log_type_str[] = { "<Unknown>", |
130 | "Found it|Found", "Didn't find it|Not Found", "Owner Maintenance", |
131 | "Write Note|Note|Other", |
132 | "Post Reviewer Note", "Enable Listing", "Publish Listing", "Will Attend", |
133 | "Attended", "Webcam Photo taken", |
134 | "Temporarily Disable Listing|Cache Disabled!", |
135 | "Needs Maintenance", "Update Coordinates", "Unarchive|Archive (show)", |
136 | "Needs Archived", "Archive", |
137 | ""}; |
138 | |
139 | static const char *wpt_sym_str[] = { "<Unknown>", |
140 | "Stages of a Multicache", "Parking Area", "Final Location", |
141 | "Question to Answer", "Trailhead", "Reference Point", |
142 | ""}; |
143 | |
144 | #define DLG_DIV 10 |
145 | |
146 | /* create the dialog box shown while loading in progress */ |
147 | gpx_dialog_t *gpx_busy_dialog_new(GtkWidget *parent) { |
148 | #ifdef USE_MAEMO |
149 | gpx_dialog_t *dialog = malloc(sizeof(gpx_dialog_t)); |
150 | memset(dialog, 0, sizeof(gpx_dialog_t)); |
151 | |
152 | dialog->dialog = gtk_dialog_new(); |
153 | |
154 | gtk_dialog_set_has_separator(GTK_DIALOG(dialog->dialog), FALSE); |
155 | gtk_window_set_title(GTK_WINDOW(dialog->dialog), _("Loading")); |
156 | gtk_window_set_default_size(GTK_WINDOW(dialog->dialog), 300, 10); |
157 | |
158 | gtk_window_set_modal(GTK_WINDOW(dialog->dialog), TRUE); |
159 | gtk_window_set_transient_for(GTK_WINDOW(dialog->dialog), GTK_WINDOW(parent)); |
160 | |
161 | dialog->label = gtk_label_new("---"); |
162 | gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog->dialog)->vbox), |
163 | dialog->label); |
164 | |
165 | dialog->pbar = gtk_progress_bar_new(); |
166 | gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR(dialog->pbar), |
167 | 0.0025 * DLG_DIV); |
168 | |
169 | gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog->dialog)->vbox), |
170 | dialog->pbar); |
171 | |
172 | gtk_widget_show_all(dialog->dialog); |
173 | |
174 | return dialog; |
175 | #else |
176 | return NULL; |
177 | #endif |
178 | } |
179 | |
180 | void gpx_busy_dialog_destroy(gpx_dialog_t *dialog) { |
181 | if(!dialog) return; |
182 | |
183 | gtk_widget_destroy(dialog->dialog); |
184 | free(dialog); |
185 | } |
186 | |
187 | static void gpx_busy_dialog_progress(gpx_dialog_t *dialog) { |
188 | static int sub_dlg = 0; |
189 | |
190 | if(!dialog) return; |
191 | |
192 | if(sub_dlg++ >= DLG_DIV) { |
193 | sub_dlg = 0; |
194 | |
195 | gtk_progress_bar_pulse(GTK_PROGRESS_BAR(dialog->pbar)); |
196 | |
197 | /* wait for main gui to appear */ |
198 | while(gtk_events_pending()) |
199 | gtk_main_iteration(); |
200 | } |
201 | } |
202 | |
203 | static void gpx_busy_dialog_set(gpx_dialog_t *dialog, char *name) { |
204 | if(!dialog) return; |
205 | |
206 | if(strrchr(name, '/')) |
207 | name = strrchr(name, '/')+1; |
208 | |
209 | gtk_label_set_text(GTK_LABEL(dialog->label), name); |
210 | |
211 | /* wait for main gui to appear */ |
212 | while(gtk_events_pending()) |
213 | gtk_main_iteration(); |
214 | } |
215 | |
216 | static int str_search(const char *pstr[], char *str, char *type) { |
217 | int i=0; |
218 | |
219 | while(pstr[i+1][0]) { |
220 | char *p = (char*)pstr[i+1]; |
221 | |
222 | /* multiple substrings in pattern? */ |
223 | while(strchr(p, '|')) { |
224 | if(!strncasecmp(p, str, strchr(p, '|')-p)) |
225 | return i; |
226 | |
227 | p = strchr(p, '|')+1; |
228 | } |
229 | |
230 | if(!strcasecmp(p, str)) |
231 | return i; |
232 | |
233 | i++; |
234 | } |
235 | |
236 | fprintf(stderr, "ERROR parsing \"%s\": Unknown \"%s\"\n", type, str); |
237 | return -1; |
238 | } |
239 | |
240 | static int log_is_older(log_t *a, log_t *b) { |
241 | if(a->year < b->year) return TRUE; |
242 | else if(a->year == b->year) { |
243 | if(a->month < b->month) return TRUE; |
244 | else if(a->month == b->month) { |
245 | if(a->day < b->day) return TRUE; |
246 | } |
247 | } |
248 | |
249 | return FALSE; |
250 | } |
251 | |
252 | int is_white(char c) { |
253 | return((c==' ')||(c=='\r')||(c=='\n')); |
254 | } |
255 | |
256 | static int all_is_white(char *str) { |
257 | while(*str) { |
258 | if(!is_white(*str)) |
259 | return FALSE; |
260 | |
261 | str++; |
262 | } |
263 | return TRUE; |
264 | } |
265 | |
266 | void gpx_display_log(log_t *log) { |
267 | printf(" Log:\n"); |
268 | printf(" date: %d.%d.%d\n", log->day, log->month, log->year); |
269 | printf(" type: %s\n", log_type_str[log->type+1]); |
270 | printf(" finder: %s\n", log->finder); |
271 | // printf(" text: %s\n", log->text); |
272 | } |
273 | |
274 | void gpx_display_cache(cache_t *cache) { |
275 | log_t *log = cache->log; |
276 | |
277 | printf("\nCache:\n"); |
278 | printf(" id: %s\n", cache->id); |
279 | printf(" name: %s\n", cache->name); |
280 | printf(" latitude: %f\n", cache->pos.lat); |
281 | printf(" longitude: %f\n", cache->pos.lon); |
282 | printf(" owner: %s\n", cache->owner); |
283 | printf(" type: %s\n", cache_type_str[cache->type+1]); |
284 | printf(" container: %s\n", cache_container_str[cache->container+1]); |
285 | printf(" difficulty: %.1f\n", cache->difficulty); |
286 | printf(" terrain: %.1f\n", cache->terrain); |
287 | // printf(" short: %s\n", cache->short_description); |
288 | // printf(" long: %s\n", cache->long_description); |
289 | // printf(" hint: %s\n", cache->hint); |
290 | |
291 | while(log) { |
292 | gpx_display_log(log); |
293 | log = log->next; |
294 | } |
295 | } |
296 | |
297 | void gpx_display_all(gpx_t *gpx) { |
298 | while(gpx) { |
299 | cache_t *cache = gpx->cache; |
300 | |
301 | printf("GPX name: %s\n", gpx->name); |
302 | printf("GPX desc: %s\n", gpx->desc); |
303 | printf("GPX date: %d.%d.%d\n", gpx->day, gpx->month, gpx->year); |
304 | while(cache) { |
305 | gpx_display_cache(cache); |
306 | cache = cache->next; |
307 | } |
308 | gpx = gpx->next; |
309 | } |
310 | } |
311 | |
312 | static gint my_strcmp(const xmlChar *a, const xmlChar *b) { |
313 | if(!a && !b) return 0; |
314 | if(!a) return -1; |
315 | if(!b) return +1; |
316 | return strcmp((char*)a,(char*)b); |
317 | } |
318 | |
319 | static float xml_get_prop_float(xmlTextReaderPtr reader, char *name) { |
320 | float ret = NAN; |
321 | char *prop; |
322 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST name))) { |
323 | ret = g_ascii_strtod(prop, NULL); |
324 | xmlFree(prop); |
325 | } |
326 | return ret; |
327 | } |
328 | |
329 | static int xml_prop_is(xmlTextReaderPtr reader, char *name, char *value, |
330 | int def_value) { |
331 | int match = def_value; |
332 | char *prop; |
333 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST name))) { |
334 | match = (strcasecmp(prop, value) == 0); |
335 | xmlFree(prop); |
336 | } |
337 | return match; |
338 | } |
339 | |
340 | /* skip current element incl. everything below (mainly for testing) */ |
341 | /* returns FALSE if something failed */ |
342 | static gboolean skip_element(xmlTextReaderPtr reader) { |
343 | g_assert(xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT); |
344 | const xmlChar *name = xmlTextReaderConstName(reader); |
345 | g_assert(name); |
346 | int depth = xmlTextReaderDepth(reader); |
347 | |
348 | if(xmlTextReaderIsEmptyElement(reader)) |
349 | return TRUE; |
350 | |
351 | int ret = xmlTextReaderRead(reader); |
352 | while((ret == 1) && |
353 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
354 | (xmlTextReaderDepth(reader) > depth) || |
355 | (my_strcmp(xmlTextReaderConstName(reader), name) != 0))) { |
356 | ret = xmlTextReaderRead(reader); |
357 | } |
358 | return(ret == 1); |
359 | } |
360 | |
361 | static char *process_text(xmlTextReaderPtr reader) { |
362 | char *text = NULL; |
363 | int depth = xmlTextReaderDepth(reader); |
364 | int ret = xmlTextReaderRead(reader); |
365 | while((ret == 1) && |
366 | ((xmlTextReaderNodeType(reader) != XML_READER_TYPE_END_ELEMENT) || |
367 | (xmlTextReaderDepth(reader) != depth))) { |
368 | |
369 | /* found a text fragment */ |
370 | if((xmlTextReaderNodeType(reader) == XML_READER_TYPE_TEXT) || |
371 | (xmlTextReaderNodeType(reader) == XML_READER_TYPE_CDATA)) { |
372 | char *frag = (char*)xmlTextReaderConstValue(reader); |
373 | |
374 | if(!text) text = strdup(frag); |
375 | else { |
376 | char *old = text; |
377 | text = malloc(strlen(old) + strlen(frag) + 1); |
378 | strcpy(text, old); |
379 | strcat(text, frag); |
380 | free(old); |
381 | } |
382 | } |
383 | ret = xmlTextReaderRead(reader); |
384 | } |
385 | |
386 | return text; |
387 | } |
388 | |
389 | static int xml_str_search(xmlTextReaderPtr reader, |
390 | const char *pstr[], char *type, int def) { |
391 | char *text = process_text(reader); |
392 | int result = def; |
393 | if(text) { |
394 | result = str_search(pstr, text, type); |
395 | free(text); |
396 | } |
397 | return result; |
398 | } |
399 | |
400 | static float xml_float(xmlTextReaderPtr reader, float def) { |
401 | char *text = process_text(reader); |
402 | float result = def; |
403 | if(text) { |
404 | result = g_ascii_strtod(text, NULL); |
405 | free(text); |
406 | } |
407 | return result; |
408 | } |
409 | |
410 | static void xml_get_date(xmlTextReaderPtr reader, int *year, int *month, int *day) { |
411 | char *str = process_text(reader); |
412 | if(str) { |
413 | sscanf(str, "%d-%d-%d", year, month, day); |
414 | free(str); |
415 | } |
416 | } |
417 | |
418 | static log_t *process_gpx_wpt_gc_logs_log(xmlTextReaderPtr reader) { |
419 | |
420 | if(xmlTextReaderIsEmptyElement(reader)) |
421 | return NULL; |
422 | |
423 | /* create a new log entry */ |
424 | log_t *log = malloc(sizeof(log_t)); |
425 | memset(log, 0, sizeof(log_t)); |
426 | |
427 | /* process all sub-nodes */ |
428 | int depth = xmlTextReaderDepth(reader); |
429 | int ret = xmlTextReaderRead(reader); |
430 | while(ret == 1) { |
431 | |
432 | switch(xmlTextReaderNodeType(reader)) { |
433 | case XML_READER_TYPE_ELEMENT: |
434 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
435 | char *name = (char*)xmlTextReaderConstName(reader); |
436 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
437 | if(name) { |
438 | if((strcasecmp(name, "date") == 0) || |
439 | (strcasecmp(name, "time") == 0)) { |
440 | xml_get_date(reader, &log->year, &log->month, &log->day); |
441 | } else if(strcasecmp(name, "type") == 0) { |
442 | log->type = xml_str_search(reader, log_type_str, "log", 0); |
443 | } else if((strcasecmp(name, "finder") == 0) || |
444 | (strcasecmp(name, "geocacher") == 0)) { |
445 | if(!log->finder) log->finder = process_text(reader); |
446 | } else if(strcasecmp(name, "text") == 0) { |
447 | if(!log->text) log->text = process_text(reader); |
448 | } else |
449 | skip_element(reader); |
450 | } else |
451 | skip_element(reader); |
452 | break; |
453 | |
454 | case XML_READER_TYPE_END_ELEMENT: |
455 | /* end element must be for the current element */ |
456 | g_assert(xmlTextReaderDepth(reader) == depth); |
457 | return log; |
458 | break; |
459 | |
460 | default: |
461 | break; |
462 | } |
463 | ret = xmlTextReaderRead(reader); |
464 | } |
465 | |
466 | gpx_free_log(log); |
467 | return NULL; |
468 | } |
469 | |
470 | static log_t *process_gpx_wpt_gc_logs(xmlTextReaderPtr reader) { |
471 | log_t *log_chain = NULL; |
472 | |
473 | if(xmlTextReaderIsEmptyElement(reader)) |
474 | return NULL; |
475 | |
476 | /* process all sub-nodes */ |
477 | int depth = xmlTextReaderDepth(reader); |
478 | int ret = xmlTextReaderRead(reader); |
479 | while(ret == 1) { |
480 | |
481 | switch(xmlTextReaderNodeType(reader)) { |
482 | case XML_READER_TYPE_ELEMENT: |
483 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
484 | char *name = (char*)xmlTextReaderConstName(reader); |
485 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
486 | if(name) { |
487 | if(strcasecmp(name, "log") == 0) { |
488 | log_t *log = process_gpx_wpt_gc_logs_log(reader); |
489 | if(log) { |
490 | /* add log to chain */ |
491 | log_t **cur = &log_chain; |
492 | while(*cur && log_is_older(log, *cur)) |
493 | cur = &((*cur)->next); |
494 | |
495 | log->next = *cur; |
496 | *cur = log; |
497 | } |
498 | } else |
499 | skip_element(reader); |
500 | } else |
501 | skip_element(reader); |
502 | break; |
503 | |
504 | case XML_READER_TYPE_END_ELEMENT: |
505 | /* end element must be for the current element */ |
506 | g_assert(xmlTextReaderDepth(reader) == depth); |
507 | return log_chain; |
508 | break; |
509 | |
510 | default: |
511 | break; |
512 | } |
513 | ret = xmlTextReaderRead(reader); |
514 | } |
515 | |
516 | /* free the entire log chain */ |
517 | while(log_chain) { |
518 | log_t *next = log_chain->next; |
519 | gpx_free_log(log_chain); |
520 | log_chain = next; |
521 | } |
522 | |
523 | return NULL; |
524 | } |
525 | |
526 | static tb_t *process_gpx_wpt_gc_tbs_travelbug(xmlTextReaderPtr reader) { |
527 | |
528 | if(xmlTextReaderIsEmptyElement(reader)) |
529 | return NULL; |
530 | |
531 | /* create a new tb entry */ |
532 | tb_t *tb = malloc(sizeof(tb_t)); |
533 | memset(tb, 0, sizeof(tb_t)); |
534 | |
535 | char *prop; |
536 | if((prop = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "ref"))) |
537 | tb->ref = strdup(prop); |
538 | else |
539 | tb->ref = strdup("<NONE>"); |
540 | |
541 | /* process all sub-nodes */ |
542 | int depth = xmlTextReaderDepth(reader); |
543 | int ret = xmlTextReaderRead(reader); |
544 | while(ret == 1) { |
545 | |
546 | switch(xmlTextReaderNodeType(reader)) { |
547 | case XML_READER_TYPE_ELEMENT: |
548 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
549 | char *name = (char*)xmlTextReaderConstName(reader); |
550 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
551 | if(name) { |
552 | if(strcasecmp(name, "name") == 0) { |
553 | if(!tb->name) tb->name = process_text(reader); |
554 | } else |
555 | skip_element(reader); |
556 | } else |
557 | skip_element(reader); |
558 | break; |
559 | |
560 | case XML_READER_TYPE_END_ELEMENT: |
561 | /* end element must be for the current element */ |
562 | g_assert(xmlTextReaderDepth(reader) == depth); |
563 | return tb; |
564 | break; |
565 | |
566 | default: |
567 | break; |
568 | } |
569 | ret = xmlTextReaderRead(reader); |
570 | } |
571 | |
572 | gpx_free_tb(tb); |
573 | return NULL; |
574 | } |
575 | |
576 | static tb_t *process_gpx_wpt_gc_tbs(xmlTextReaderPtr reader) { |
577 | tb_t *tb = NULL, **tbP = &tb; |
578 | |
579 | if(xmlTextReaderIsEmptyElement(reader)) |
580 | return tb; |
581 | |
582 | /* process all sub-nodes */ |
583 | int depth = xmlTextReaderDepth(reader); |
584 | int ret = xmlTextReaderRead(reader); |
585 | while(ret == 1) { |
586 | |
587 | switch(xmlTextReaderNodeType(reader)) { |
588 | case XML_READER_TYPE_ELEMENT: |
589 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
590 | char *name = (char*)xmlTextReaderConstName(reader); |
591 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
592 | if(name) { |
593 | if(strcasecmp(name, "travelbug") == 0) { |
594 | *tbP = process_gpx_wpt_gc_tbs_travelbug(reader); |
595 | if(*tbP) tbP = &(*tbP)->next; |
596 | } else |
597 | skip_element(reader); |
598 | } else |
599 | skip_element(reader); |
600 | break; |
601 | |
602 | case XML_READER_TYPE_END_ELEMENT: |
603 | /* end element must be for the current element */ |
604 | g_assert(xmlTextReaderDepth(reader) == depth); |
605 | return tb; |
606 | break; |
607 | |
608 | default: |
609 | break; |
610 | } |
611 | ret = xmlTextReaderRead(reader); |
612 | } |
613 | |
614 | while(tb) { |
615 | tb_t *next = tb; |
616 | gpx_free_tb(tb); |
617 | tb = next; |
618 | } |
619 | |
620 | return NULL; |
621 | } |
622 | |
623 | static void process_gpx_wpt_gc(xmlTextReaderPtr reader, cache_t *cache) { |
624 | cache->available = xml_prop_is(reader, "available", "true", TRUE); |
625 | cache->archived = xml_prop_is(reader, "archived", "true", FALSE); |
626 | |
627 | if(xmlTextReaderIsEmptyElement(reader)) |
628 | return; |
629 | |
630 | /* process all sub-nodes */ |
631 | int depth = xmlTextReaderDepth(reader); |
632 | int ret = xmlTextReaderRead(reader); |
633 | while(ret == 1) { |
634 | |
635 | switch(xmlTextReaderNodeType(reader)) { |
636 | case XML_READER_TYPE_ELEMENT: |
637 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
638 | char *name = (char*)xmlTextReaderConstName(reader); |
639 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
640 | if(name) { |
641 | if(strcasecmp(name, "name") == 0) { |
642 | if(!cache->name) cache->name = process_text(reader); |
643 | } else if(strcasecmp(name, "owner") == 0) { |
644 | if(!cache->owner) cache->owner = process_text(reader); |
645 | } else if(strcasecmp(name, "type") == 0) { |
646 | cache->type = xml_str_search(reader, cache_type_str, |
647 | "cache type", CACHE_TYPE_UNKNOWN); |
648 | } else if(strcasecmp(name, "container") == 0) { |
649 | cache->container = xml_str_search(reader, cache_container_str, |
650 | "container", CACHE_CONT_UNKNOWN); |
651 | } else if((strcasecmp(name, "short_description") == 0) || |
652 | (strcasecmp(name, "summary") == 0)) { |
653 | if(!cache->short_description) { |
654 | cache->short_description = process_text(reader); |
655 | cache->short_is_html = xml_prop_is(reader, "html", "true", FALSE); |
656 | } |
657 | } else if((strcasecmp(name, "long_description") == 0) || |
658 | (strcasecmp(name, "description") == 0)) { |
659 | if(!cache->long_description) { |
660 | cache->long_description = process_text(reader); |
661 | cache->long_is_html = xml_prop_is(reader, "html", "true", FALSE); |
662 | } |
663 | } else if((strcasecmp(name, "encoded_hints") == 0) || |
664 | (strcasecmp(name, "hints") == 0)) { |
665 | if(!cache->hint) { |
666 | cache->hint = process_text(reader); |
667 | /* often hints aren't more than just a bunch of blanks ... */ |
668 | if(cache->hint && all_is_white(cache->hint)) { |
669 | free(cache->hint); |
670 | cache->hint = NULL; |
671 | } else |
672 | cache->hint_is_html = xml_prop_is(reader, "html", "true", FALSE); |
673 | } |
674 | } else if(strcasecmp(name, "difficulty") == 0) { |
675 | cache->difficulty = xml_float(reader, 0.0); |
676 | } else if(strcasecmp(name, "terrain") == 0) { |
677 | cache->terrain = xml_float(reader, 0.0); |
678 | } else if(strcasecmp(name, "logs") == 0) { |
679 | if(!cache->log) cache->log = process_gpx_wpt_gc_logs(reader); |
680 | } else if(strcasecmp(name, "travelbugs") == 0) { |
681 | if(!cache->tb) cache->tb = process_gpx_wpt_gc_tbs(reader); |
682 | } else { |
683 | // printf("unhandled item found: gpx/wpt/cache/%s\n", name); |
684 | skip_element(reader); |
685 | } |
686 | } else |
687 | skip_element(reader); |
688 | break; |
689 | |
690 | case XML_READER_TYPE_END_ELEMENT: |
691 | /* end element must be for the current element */ |
692 | g_assert(xmlTextReaderDepth(reader) == depth); |
693 | return; |
694 | break; |
695 | |
696 | default: |
697 | break; |
698 | } |
699 | ret = xmlTextReaderRead(reader); |
700 | } |
701 | } |
702 | |
703 | /* parse waypoint entry */ |
704 | static cache_t *process_gpx_wpt(xmlTextReaderPtr reader, gpx_dialog_t *dialog, |
705 | gpx_t *gpx) { |
706 | char *cmt = NULL, *desc = NULL; |
707 | char *sym = NULL; |
708 | |
709 | gpx_busy_dialog_progress(dialog); |
710 | |
711 | if(xmlTextReaderIsEmptyElement(reader)) |
712 | return NULL; |
713 | |
714 | cache_t *cache = malloc(sizeof(cache_t)); |
715 | memset(cache, 0, sizeof(cache_t)); |
716 | |
717 | /* set some defaults */ |
718 | cache->type = CACHE_TYPE_UNKNOWN; |
719 | cache->container = CACHE_CONT_UNKNOWN; |
720 | cache->available = TRUE; |
721 | |
722 | /* parse attributes */ |
723 | cache->pos.lat = xml_get_prop_float(reader, "lat"); |
724 | cache->pos.lon = xml_get_prop_float(reader, "lon"); |
725 | |
726 | /* process all sub-nodes */ |
727 | int depth = xmlTextReaderDepth(reader); |
728 | int ret = xmlTextReaderRead(reader); |
729 | while(ret == 1) { |
730 | |
731 | switch(xmlTextReaderNodeType(reader)) { |
732 | case XML_READER_TYPE_ELEMENT: |
733 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
734 | char *name = (char*)xmlTextReaderConstName(reader); |
735 | |
736 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
737 | |
738 | if(name) { |
739 | if(strcasecmp(name, "name") == 0) { |
740 | if(!cache->id) cache->id = process_text(reader); |
741 | } else if(strcasecmp(name, "url") == 0) { |
742 | if(!cache->url) cache->url = process_text(reader); |
743 | } else if((strcasecmp(name, "cache") == 0) || |
744 | (strcasecmp(name, "geocache") == 0)) { |
745 | process_gpx_wpt_gc(reader, cache); |
746 | |
747 | /* the following are used if the current entry is a waypoint */ |
748 | } else if(strcasecmp(name, "cmt") == 0) { |
749 | if(!cmt) cmt = process_text(reader); |
750 | } else if(strcasecmp(name, "desc") == 0) { |
751 | if(!desc) desc = process_text(reader); |
752 | } else if(strcasecmp(name, "sym") == 0) { |
753 | if(!sym) sym = process_text(reader); |
754 | } else { |
755 | skip_element(reader); |
756 | } |
757 | } else |
758 | skip_element(reader); |
759 | break; |
760 | |
761 | case XML_READER_TYPE_END_ELEMENT: |
762 | /* end element must be for the current element */ |
763 | g_assert(xmlTextReaderDepth(reader) == depth); |
764 | |
765 | /* ------------ cleanup -------------- */ |
766 | |
767 | /* special handling for opencaching.de caches */ |
768 | if(cache->id && strncasecmp(cache->id, "OC", 2) == 0) { |
769 | /* the html attributes are either missing or wrong on OC ... */ |
770 | cache->long_is_html = TRUE; |
771 | cache->hint_is_html = TRUE; |
772 | cache->logs_are_html = TRUE; |
773 | } |
774 | |
775 | /* neither geocaching.com GC* nor opencaching.com OC* nor */ |
776 | /* geocaching australia GA* waypoint */ |
777 | if(cache->id && |
778 | (strncasecmp(cache->id, "__", 2) != 0) && |
779 | (strncasecmp(cache->id, "GC", 2) != 0) && |
780 | (strncasecmp(cache->id, "OC", 2) != 0) && |
781 | (strncasecmp(cache->id, "GA", 2) != 0)) { |
782 | cache_t *parent = gpx->cache; |
783 | |
784 | /* check if the gpx file contains a cache with matching name */ |
785 | while(parent && strcasecmp(parent->id+2, cache->id+2)) |
786 | parent = parent->next; |
787 | |
788 | if(parent && parent != cache) { |
789 | wpt_t **wpt = &parent->wpt; |
790 | |
791 | /* search end of list */ |
792 | while(*wpt && (strcmp((*wpt)->id, cache->id)<0)) |
793 | wpt = &(*wpt)->next; |
794 | |
795 | *wpt = malloc(sizeof(wpt_t)); |
796 | memset(*wpt, 0, sizeof(wpt_t)); |
797 | |
798 | /* transfer name to waypoint entry */ |
799 | (*wpt)->id = cache->id; |
800 | cache->id = NULL; |
801 | |
802 | (*wpt)->pos.lat = cache->pos.lat; |
803 | (*wpt)->pos.lon = cache->pos.lon; |
804 | |
805 | (*wpt)->cmt = cmt; cmt = NULL; |
806 | (*wpt)->desc = desc; desc = NULL; |
807 | (*wpt)->sym = str_search(wpt_sym_str, sym, "wpt sym"); |
808 | |
809 | /* and just free the current cache entry as we now have used */ |
810 | /* the data for a caches waypoint */ |
811 | gpx_free_cache(cache); |
812 | cache = NULL; |
813 | } else { |
814 | /* if it doesn't have a name etc, it's probably not a real */ |
815 | /* cache, so drop it */ |
816 | if(!cache->name || !cache->id) { |
817 | printf("Orphaned waypoint: %s\n", cache->id); |
818 | gpx_free_cache(cache); |
819 | cache = NULL; |
820 | } |
821 | } |
822 | } else { |
823 | if(!cache->id) |
824 | cache->id = g_strdup_printf("NO ID"); |
825 | |
826 | /* this is known to be a geocache due to its waypoint name */ |
827 | /* (gc*, oc*, ga*) and is thus forces to be an entry */ |
828 | if(!cache->name) |
829 | cache->name = g_strdup_printf("Unnamed(%s)", cache->id); |
830 | } |
831 | |
832 | if(desc) free(desc); |
833 | if(cmt) free(cmt); |
834 | if(sym) free(sym); |
835 | |
836 | return cache; |
837 | break; |
838 | |
839 | default: |
840 | break; |
841 | } |
842 | ret = xmlTextReaderRead(reader); |
843 | } |
844 | |
845 | gpx_free_cache(cache); |
846 | return NULL; |
847 | } |
848 | |
849 | static gboolean process_gpx(xmlTextReaderPtr reader, gpx_dialog_t *dialog, |
850 | gpx_t *gpx) { |
851 | |
852 | /* no attributes of interest */ |
853 | |
854 | /* the following might be optimized for speed reasons! */ |
855 | |
856 | /* find end of cache chain */ |
857 | cache_t **cache = &gpx->cache; |
858 | while(*cache) cache = &(*cache)->next; |
859 | |
860 | const xmlChar *name = xmlTextReaderConstName(reader); |
861 | if(!name) return FALSE; |
862 | |
863 | /* read next node */ |
864 | int ret = xmlTextReaderRead(reader); |
865 | while(ret == 1) { |
866 | |
867 | switch(xmlTextReaderNodeType(reader)) { |
868 | case XML_READER_TYPE_ELEMENT: |
869 | |
870 | g_assert(xmlTextReaderDepth(reader) == 1); |
871 | char *name = (char*)xmlTextReaderConstName(reader); |
872 | if(name && !gpx->name && strcasecmp(name, "name") == 0) { |
873 | gpx->name = process_text(reader); |
874 | } else if(name && !gpx->desc && strcasecmp(name, "desc") == 0) { |
875 | gpx->desc = process_text(reader); |
876 | } else if(name && ((strcasecmp(name, "time") == 0) || |
877 | (strcasecmp(name, "date") == 0))) { |
878 | xml_get_date(reader, &gpx->year, &gpx->month, &gpx->day); |
879 | } else if(name && strcasecmp(name, "wpt") == 0) { |
880 | *cache = process_gpx_wpt(reader, dialog, gpx); |
881 | if(*cache) cache = &(*cache)->next; |
882 | } else { |
883 | // printf("something unknown (%s) found\n", name); |
884 | skip_element(reader); |
885 | } |
886 | break; |
887 | |
888 | case XML_READER_TYPE_END_ELEMENT: |
889 | /* end element must be for the current element */ |
890 | g_assert(xmlTextReaderDepth(reader) == 0); |
891 | return TRUE; |
892 | break; |
893 | |
894 | default: |
895 | break; |
896 | } |
897 | ret = xmlTextReaderRead(reader); |
898 | } |
899 | |
900 | return FALSE; |
901 | } |
902 | |
903 | /* parse loc waypoint entry */ |
904 | static cache_t *process_loc_waypoint(xmlTextReaderPtr reader, |
905 | gpx_dialog_t *dialog) { |
906 | |
907 | gpx_busy_dialog_progress(dialog); |
908 | |
909 | if(xmlTextReaderIsEmptyElement(reader)) |
910 | return NULL; |
911 | |
912 | cache_t *cache = malloc(sizeof(cache_t)); |
913 | memset(cache, 0, sizeof(cache_t)); |
914 | |
915 | /* set some defaults */ |
916 | cache->type = CACHE_TYPE_TRADITIONAL; |
917 | cache->container = CACHE_CONT_UNKNOWN; |
918 | cache->available = TRUE; |
919 | |
920 | /* process all sub-nodes */ |
921 | int depth = xmlTextReaderDepth(reader); |
922 | int ret = xmlTextReaderRead(reader); |
923 | while(ret == 1) { |
924 | |
925 | switch(xmlTextReaderNodeType(reader)) { |
926 | case XML_READER_TYPE_ELEMENT: |
927 | g_assert(xmlTextReaderDepth(reader) == depth+1); |
928 | char *name = (char*)xmlTextReaderConstName(reader); |
929 | if(strrchr(name, ':')) name = strrchr(name, ':')+1; |
930 | |
931 | if(name) { |
932 | if(strcasecmp(name, "name") == 0) { |
933 | cache->id = (char*)xmlTextReaderGetAttribute(reader, BAD_CAST "id"); |
934 | cache->name = process_text(reader); |
935 | } else if(strcasecmp(name, "link") == 0) { |
936 | cache->url = process_text(reader); |
937 | } else if(strcasecmp(name, "coord") == 0) { |
938 | cache->pos.lat = xml_get_prop_float(reader, "lat"); |
939 | cache->pos.lon = xml_get_prop_float(reader, "lon"); |
940 | skip_element(reader); |
941 | } else |
942 | skip_element(reader); |
943 | } else |
944 | skip_element(reader); |
945 | break; |
946 | |
947 | case XML_READER_TYPE_END_ELEMENT: |
948 | /* end element must be for the current element */ |
949 | g_assert(xmlTextReaderDepth(reader) == depth); |
950 | return cache; |
951 | break; |
952 | |
953 | default: |
954 | break; |
955 | } |
956 | ret = xmlTextReaderRead(reader); |
957 | } |
958 | |
959 | g_assert(0); |
960 | return NULL; |
961 | } |
962 | |
963 | static void process_loc(xmlTextReaderPtr reader, gpx_dialog_t *dialog, |
964 | gpx_t *gpx) { |
965 | |
966 | /* find end of cache chain */ |
967 | cache_t **cache = &gpx->cache; |
968 | while(*cache) cache = &(*cache)->next; |
969 | |
970 | const xmlChar *name = xmlTextReaderConstName(reader); |
971 | g_assert(name); |
972 | |
973 | /* read next node */ |
974 | int ret = xmlTextReaderRead(reader); |
975 | while(ret == 1) { |
976 | |
977 | switch(xmlTextReaderNodeType(reader)) { |
978 | case XML_READER_TYPE_ELEMENT: |
979 | |
980 | g_assert(xmlTextReaderDepth(reader) == 1); |
981 | char *name = (char*)xmlTextReaderConstName(reader); |
982 | |
983 | if(name && strcasecmp(name, "waypoint") == 0) { |
984 | *cache = process_loc_waypoint(reader, dialog); |
985 | if(*cache) cache = &(*cache)->next; |
986 | } else |
987 | skip_element(reader); |
988 | break; |
989 | |
990 | case XML_READER_TYPE_END_ELEMENT: |
991 | /* end element must be for the current element */ |
992 | g_assert(xmlTextReaderDepth(reader) == 0); |
993 | return; |
994 | break; |
995 | |
996 | default: |
997 | break; |
998 | } |
999 | ret = xmlTextReaderRead(reader); |
1000 | } |
1001 | |
1002 | g_assert(0); |
1003 | return; |
1004 | } |
1005 | |
1006 | static gpx_t *process_root(xmlTextReaderPtr reader, gpx_dialog_t *dialog, |
1007 | char *fname, gpx_t *in) { |
1008 | |
1009 | /* no gpx entry given, create a new one */ |
1010 | gpx_t *gpx = NULL; |
1011 | if(!in) { |
1012 | /* allocate memory to hold gpx file description */ |
1013 | gpx = malloc(sizeof(gpx_t)); |
1014 | memset(gpx, 0, sizeof(gpx_t)); |
1015 | gpx->filename = strdup(fname); |
1016 | } else |
1017 | gpx = in; |
1018 | |
1019 | int ret = xmlTextReaderRead(reader); |
1020 | while(ret == 1) { |
1021 | switch(xmlTextReaderNodeType(reader)) { |
1022 | case XML_READER_TYPE_ELEMENT: |
1023 | g_assert(xmlTextReaderDepth(reader) == 0); |
1024 | char *name = (char*)xmlTextReaderConstName(reader); |
1025 | if(name && strcasecmp(name, "gpx") == 0) { |
1026 | process_gpx(reader, dialog, gpx); |
1027 | } else if(name && strcasecmp(name, "loc") == 0) { |
1028 | process_loc(reader, dialog, gpx); |
1029 | } else { |
1030 | printf("something unknown found\n"); |
1031 | skip_element(reader); |
1032 | } |
1033 | break; |
1034 | |
1035 | case XML_READER_TYPE_END_ELEMENT: |
1036 | /* end element must be for the current element */ |
1037 | g_assert(xmlTextReaderDepth(reader) == 0); |
1038 | ret = -1; |
1039 | break; |
1040 | |
1041 | default: |
1042 | break; |
1043 | } |
1044 | |
1045 | if(ret == 1) |
1046 | ret = xmlTextReaderRead(reader); |
1047 | } |
1048 | |
1049 | /* check if a name has been set and use filename if not */ |
1050 | if(!in && !gpx->name) { |
1051 | if(!gpx->desc) { |
1052 | char *str = strrchr(fname, '/'); |
1053 | if(str) gpx->name = strdup(str+1); |
1054 | else gpx->name = strdup(fname); |
1055 | } else |
1056 | gpx->name = strdup(gpx->desc); |
1057 | } |
1058 | |
1059 | return gpx; |
1060 | } |
1061 | |
1062 | static gpx_t *gpx_parse_file(gpx_dialog_t *dialog, char *filename) { |
1063 | gpx_t *gpx = NULL; |
1064 | |
1065 | LIBXML_TEST_VERSION; |
1066 | |
1067 | gpx_busy_dialog_set(dialog, filename); |
1068 | |
1069 | xmlTextReaderPtr reader = xmlReaderForFile(filename, NULL, 0); |
1070 | if (reader != NULL) { |
1071 | gpx = process_root(reader, dialog, filename, NULL); |
1072 | xmlFreeTextReader(reader); |
1073 | } else { |
1074 | fprintf(stderr, "Unable to open %s\n", filename); |
1075 | } |
1076 | |
1077 | /* check of there's a waypoints file (*-wpts.gpx) for this */ |
1078 | if(strrchr(filename, '.')) { |
1079 | char *dot = strrchr(filename, '.'); |
1080 | char wpts_name[128]; |
1081 | *dot = 0; |
1082 | snprintf(wpts_name, sizeof(wpts_name), "%s-wpts.gpx", filename); |
1083 | *dot = '.'; |
1084 | if(g_file_test(wpts_name, G_FILE_TEST_EXISTS)) { |
1085 | xmlTextReaderPtr reader = xmlReaderForFile(wpts_name, NULL, 0); |
1086 | if (reader != NULL) { |
1087 | gpx = process_root(reader, dialog, wpts_name, gpx); |
1088 | xmlFreeTextReader(reader); |
1089 | } else { |
1090 | fprintf(stderr, "Unable to open %s\n", filename); |
1091 | } |
1092 | } |
1093 | } |
1094 | |
1095 | return gpx; |
1096 | } |
1097 | |
1098 | static gpx_t *decompress_file(unzFile file, gpx_dialog_t *dialog, |
1099 | char *name, char *filename, |
1100 | gpx_t *gpx_in) { |
1101 | unz_file_info info; |
1102 | gpx_t *gpx = NULL; |
1103 | |
1104 | gpx_busy_dialog_set(dialog, name); |
1105 | |
1106 | if((unzLocateFile(file, name, FALSE) != Z_OK) || |
1107 | (unzGetCurrentFileInfo(file, &info, NULL,0, NULL,0, NULL,0) != Z_OK) || |
1108 | (unzOpenCurrentFile(file) != UNZ_OK)) { |
1109 | |
1110 | /* do not complain if we are processing a waypoints file */ |
1111 | if(!gpx_in) |
1112 | errorf("Unable to locate/get info/open\n%s\ninside\n%s", |
1113 | name, filename); |
1114 | else |
1115 | printf("Unable to locate/get info/open %s inside %s\n", |
1116 | name, filename); |
1117 | |
1118 | return gpx_in; |
1119 | } |
1120 | |
1121 | printf("file size is %ld\n", info.uncompressed_size); |
1122 | |
1123 | char *buffer = malloc(info.uncompressed_size); |
1124 | if(!buffer) { |
1125 | errorf("Out of memory while uncompressing file"); |
1126 | unzCloseCurrentFile(file); |
1127 | return gpx_in; |
1128 | } |
1129 | |
1130 | if(unzReadCurrentFile(file, buffer, info.uncompressed_size) < 0) { |
1131 | errorf("Read error on compressed file"); |
1132 | free(buffer); |
1133 | unzCloseCurrentFile(file); |
1134 | return gpx_in; |
1135 | } |
1136 | |
1137 | /* fire up libxml */ |
1138 | LIBXML_TEST_VERSION; |
1139 | |
1140 | xmlTextReaderPtr reader = |
1141 | xmlReaderForMemory(buffer, info.uncompressed_size, |
1142 | NULL, NULL, 0); |
1143 | if (reader != NULL) { |
1144 | gpx = process_root(reader, dialog, filename, gpx_in); |
1145 | xmlFreeTextReader(reader); |
1146 | } else { |
1147 | fprintf(stderr, "Unable to open %s\n", filename); |
1148 | } |
1149 | |
1150 | free(buffer); |
1151 | unzCloseCurrentFile(file); |
1152 | return gpx; |
1153 | } |
1154 | |
1155 | static gpx_t *decompress_zip(gpx_dialog_t *dialog, char *filename) { |
1156 | char *gpx_name, *fbase; |
1157 | gpx_t *gpx = NULL; |
1158 | |
1159 | /* extract base name and allocate space for file names */ |
1160 | fbase = strrchr(filename, '/'); |
1161 | if(!fbase) fbase = filename; |
1162 | else fbase++; /* skip '/' */ |
1163 | gpx_name = malloc(strlen(fbase)+strlen("-wpts")+1); |
1164 | |
1165 | unzFile file = unzOpen(filename); |
1166 | if(!file) { |
1167 | errorf("Error opening file %s for unzip", filename); |
1168 | free(gpx_name); |
1169 | return NULL; |
1170 | } |
1171 | |
1172 | printf("ZIP file successfully opened\n"); |
1173 | |
1174 | /* try to open gpx file inside */ |
1175 | strcpy(gpx_name, fbase); |
1176 | strcpy(gpx_name+strlen(gpx_name)-4, ".gpx"); |
1177 | printf("gpx file name is %s\n", gpx_name); |
1178 | |
1179 | gpx = decompress_file(file, dialog, gpx_name, filename, NULL); |
1180 | |
1181 | /* try to open -wpts.gpx file inside */ |
1182 | strcpy(gpx_name, fbase); |
1183 | strcpy(gpx_name+strlen(gpx_name)-4, "-wpts.gpx"); |
1184 | printf("gpx wpts file name is %s\n", gpx_name); |
1185 | |
1186 | gpx = decompress_file(file, dialog, gpx_name, filename, gpx); |
1187 | |
1188 | unzClose(file); |
1189 | free(gpx_name); |
1190 | return gpx; |
1191 | } |
1192 | |
1193 | gpx_t *gpx_parse(gpx_dialog_t *dialog, char *filename) { |
1194 | gpx_t *gpx = NULL; |
1195 | |
1196 | /* show busy dialog */ |
1197 | printf("load file %s\n", filename); |
1198 | |
1199 | if((strlen(filename) > 4) && |
1200 | !strcasecmp(filename+strlen(filename)-4, ".zip")) { |
1201 | printf("trying to load a zip file!\n"); |
1202 | |
1203 | gpx = decompress_zip(dialog, filename); |
1204 | } else |
1205 | gpx = gpx_parse_file(dialog, filename); |
1206 | |
1207 | return gpx; |
1208 | } |
1209 | |
1210 | /* scan entire directory */ |
1211 | gpx_t *gpx_parse_dir(gpx_dialog_t *dialog, char *dirname) { |
1212 | GnomeVFSResult result; |
1213 | GnomeVFSDirectoryHandle *handle; |
1214 | GnomeVFSFileInfo *finfo = gnome_vfs_file_info_new();; |
1215 | |
1216 | gpx_t *gpx = NULL; |
1217 | |
1218 | /* show busy dialog */ |
1219 | printf("load dir %s\n", dirname); |
1220 | gpx_busy_dialog_set(dialog, dirname); |
1221 | |
1222 | LIBXML_TEST_VERSION; |
1223 | |
1224 | result = gnome_vfs_directory_open(&handle, dirname, |
1225 | GNOME_VFS_FILE_INFO_DEFAULT); |
1226 | |
1227 | if(result != GNOME_VFS_OK) { |
1228 | errorf("Unable to open directory \"%s\":\n%s", |
1229 | dirname, gnome_vfs_result_to_string(result)); |
1230 | return NULL; |
1231 | } |
1232 | |
1233 | while(GNOME_VFS_OK == gnome_vfs_directory_read_next(handle, finfo)) { |
1234 | if(finfo->type == GNOME_VFS_FILE_TYPE_REGULAR) { |
1235 | char *ext = finfo->name+strlen(finfo->name)-4; |
1236 | |
1237 | /* check if file ends with .gpx or .loc */ |
1238 | if((strcasecmp(ext, ".gpx") == 0) || (strcasecmp(ext, ".loc") == 0)) { |
1239 | char *filename = malloc(strlen(dirname)+strlen(finfo->name)+2); |
1240 | |
1241 | strcpy(filename, dirname); |
1242 | if(strlastchr(filename) != '/') |
1243 | strcat(filename, "/"); |
1244 | strcat(filename, finfo->name); |
1245 | |
1246 | xmlTextReaderPtr reader = xmlReaderForFile(filename, NULL, 0); |
1247 | if (reader != NULL) { |
1248 | gpx = process_root(reader, dialog, filename, gpx); |
1249 | xmlFreeTextReader(reader); |
1250 | } else { |
1251 | fprintf(stderr, "Unable to open %s\n", filename); |
1252 | } |
1253 | |
1254 | free(filename); |
1255 | } |
1256 | } |
1257 | } |
1258 | |
1259 | if(gpx) { |
1260 | /* replace file name with directory name */ |
1261 | free(gpx->filename); |
1262 | gpx->filename = strdup(dirname); |
1263 | |
1264 | /* replace gpx name with directory name */ |
1265 | free(gpx->name); |
1266 | |
1267 | /* retrieve pure dirname if possible */ |
1268 | char *n = strrchr(dirname, '/'); |
1269 | if(!n) n = dirname; |
1270 | else n++; |
1271 | |
1272 | // gpx->name = malloc(strlen("<DIR> ")+strlen(n)+1); |
1273 | // strcpy(gpx->name, "<DIR> "); |
1274 | // strcat(gpx->name, n); |
1275 | gpx->name = strdup(n); |
1276 | } |
1277 | |
1278 | gnome_vfs_file_info_unref(finfo); |
1279 | gnome_vfs_directory_close(handle); |
1280 | |
1281 | return gpx; |
1282 | } |
1283 | |
1284 | /* return number of caches in given gpx file */ |
1285 | int gpx_total_caches(gpx_t *gpx) { |
1286 | cache_t *cache = gpx->cache; |
1287 | int num = 0; |
1288 | |
1289 | while(cache) { |
1290 | num++; |
1291 | cache = cache->next; |
1292 | } |
1293 | |
1294 | return num; |
1295 | } |
1296 | |
1297 | int gpx_number_of_waypoints(wpt_t *wpt) { |
1298 | int num = 0; |
1299 | |
1300 | while(wpt) { |
1301 | num++; |
1302 | wpt = wpt->next; |
1303 | } |
1304 | |
1305 | return num; |
1306 | } |
1307 | |
1308 | int gpx_number_of_logs(log_t *log) { |
1309 | int num = 0; |
1310 | |
1311 | while(log) { |
1312 | num++; |
1313 | log = log->next; |
1314 | } |
1315 | |
1316 | return num; |
1317 | } |
1318 | |
1319 | int gpx_number_of_tbs(tb_t *tb) { |
1320 | int num = 0; |
1321 | |
1322 | while(tb) { |
1323 | num++; |
1324 | tb = tb->next; |
1325 | } |
1326 | |
1327 | return num; |
1328 | } |
1329 | |
1330 | /* http://mathforum.org/library/drmath/view/55417.html */ |
1331 | float gpx_pos_get_bearing(pos_t p1, pos_t p2) { |
1332 | /* convert to radians */ |
1333 | p1.lat *= (M_PI/180.0); p1.lon *= (M_PI/180.0); |
1334 | p2.lat *= (M_PI/180.0); p2.lon *= (M_PI/180.0); |
1335 | |
1336 | return fmodf(360.0 + (180.0/M_PI) * |
1337 | (atan2( sin(p2.lon - p1.lon) * cos(p2.lat), |
1338 | cos(p1.lat) * sin(p2.lat) - |
1339 | sin(p1.lat) * cos(p2.lat) * cos(p2.lon - p1.lon))), |
1340 | 360.0); |
1341 | } |
1342 | |
1343 | /* http://mathforum.org/library/drmath/view/51722.html */ |
1344 | float gpx_pos_get_distance(pos_t p1, pos_t p2, int miles) { |
1345 | /* convert to radians */ |
1346 | p1.lat *= (M_PI/180.0); p1.lon *= (M_PI/180.0); |
1347 | p2.lat *= (M_PI/180.0); p2.lon *= (M_PI/180.0); |
1348 | |
1349 | float aob = acos(cos(p1.lat) * cos(p2.lat) * cos(p2.lon - p1.lon) + |
1350 | sin(p1.lat) * sin(p2.lat)); |
1351 | |
1352 | if(miles) |
1353 | return(aob * 3959.0); /* great circle radius in miles */ |
1354 | |
1355 | return(aob * 6371.0); /* great circle radius in kilometers */ |
1356 | } |
1357 | |
1358 | void gpx_pos_get_distance_str(char *str, int len, |
1359 | pos_t p1, pos_t p2, int mil) { |
1360 | if(isnan(p1.lat) || isnan(p1.lon)) { |
1361 | snprintf(str, len, "---"); |
1362 | return; |
1363 | } |
1364 | |
1365 | float dist = gpx_pos_get_distance(p1, p2, mil); |
1366 | distance_str(str, len, dist, mil); |
1367 | } |
1368 | |
1369 | void gpx_sort(gpx_t *gpx, int by, pos_t *refpos) { |
1370 | cache_t **new; |
1371 | cache_t *cur = gpx->cache; |
1372 | int total = gpx_total_caches(gpx); |
1373 | float *dist_cache = malloc(total * sizeof(float)); |
1374 | |
1375 | gpx->cache = NULL; /* detach old chain */ |
1376 | while(cur) { |
1377 | float cur_dist = -1; |
1378 | int cur_cnt = 0; |
1379 | |
1380 | if(!isnan(cur->pos.lat) && !isnan(cur->pos.lon)) |
1381 | cur_dist = gpx_pos_get_distance(*refpos, gpx_cache_pos(cur), 0); |
1382 | |
1383 | new = &(gpx->cache); |
1384 | |
1385 | /* search for currect insertion point */ |
1386 | while(*new && (dist_cache[cur_cnt] < cur_dist)) { |
1387 | new = &((*new)->next); |
1388 | cur_cnt++; |
1389 | } |
1390 | |
1391 | /* save distance for further comparisons */ |
1392 | memmove(dist_cache+cur_cnt+1, dist_cache+cur_cnt, |
1393 | sizeof(float)*(total-cur_cnt-1)); |
1394 | dist_cache[cur_cnt++] = cur_dist; |
1395 | |
1396 | cache_t *next = cur->next; |
1397 | |
1398 | /* insert into "new" chain */ |
1399 | cur->next = *new; |
1400 | *new = cur; |
1401 | |
1402 | cur = next; |
1403 | } |
1404 | |
1405 | free(dist_cache); |
1406 | } |
1407 | |
1408 | gpx_t *gpx_cache2gpx(gpx_t *gpx, cache_t *search_cache) { |
1409 | while(gpx) { |
1410 | cache_t *cache = gpx->cache; |
1411 | while(cache) { |
1412 | if(cache == search_cache) |
1413 | return gpx; |
1414 | |
1415 | cache = cache->next; |
1416 | } |
1417 | gpx = gpx->next; |
1418 | } |
1419 | |
1420 | return NULL; |
1421 | } |
1422 | |
1423 | /* since the actual cache position may be overridden, we */ |
1424 | /* always access the position through this function */ |
1425 | pos_t gpx_cache_pos(cache_t *cache) { |
1426 | if(cache->notes && cache->notes->override) |
1427 | return cache->notes->pos; |
1428 | |
1429 | return cache->pos; |
1430 | } |