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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2007, Evan Battaglia <gtoevan@gmx.net> | |
5 | * Copyright (C) 2007, Quy Tonthat <qtonthat@gmail.com> | |
6 | * Copyright (C) 2008, Hein Ragas <viking@ragas.nl> | |
7 | * Copyright (C) 2009, Tal B <tal.bav@gmail.com> | |
8 | * Copyright (c) 2012-2014, Rob Norris <rw_norris@hotmail.com> | |
9 | * | |
10 | * Some of the code adapted from GPSBabel 1.2.7 | |
11 | * http://gpsbabel.sf.net/ | |
12 | * Copyright (C) 2002, 2003, 2004, 2005 Robert Lipe, robertlipe@usa.net | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
27 | * | |
28 | */ | |
29 | #ifdef HAVE_CONFIG_H | |
30 | #include "config.h" | |
31 | #endif | |
32 | ||
33 | #define _XOPEN_SOURCE /* glibc2 needs this */ | |
34 | ||
35 | #include "gpx.h" | |
36 | #include "viking.h" | |
37 | #include <expat.h> | |
38 | #ifdef HAVE_STRING_H | |
39 | #include <string.h> | |
40 | #endif | |
41 | #include <glib.h> | |
42 | #ifdef HAVE_MATH_H | |
43 | #include <math.h> | |
44 | #endif | |
45 | #include <time.h> | |
46 | ||
47 | typedef enum { | |
48 | tt_unknown = 0, | |
49 | ||
50 | tt_gpx, | |
51 | tt_gpx_name, | |
52 | tt_gpx_desc, | |
53 | tt_gpx_author, | |
54 | tt_gpx_time, | |
55 | tt_gpx_keywords, | |
56 | ||
57 | tt_wpt, | |
58 | tt_wpt_cmt, | |
59 | tt_wpt_desc, | |
60 | tt_wpt_name, | |
61 | tt_wpt_ele, | |
62 | tt_wpt_sym, | |
63 | tt_wpt_time, | |
64 | tt_wpt_url, | |
65 | tt_wpt_link, /* New in GPX 1.1 */ | |
66 | ||
67 | tt_trk, | |
68 | tt_trk_cmt, | |
69 | tt_trk_desc, | |
70 | tt_trk_name, | |
71 | ||
72 | tt_rte, | |
73 | ||
74 | tt_trk_trkseg, | |
75 | tt_trk_trkseg_trkpt, | |
76 | tt_trk_trkseg_trkpt_ele, | |
77 | tt_trk_trkseg_trkpt_time, | |
78 | tt_trk_trkseg_trkpt_name, | |
79 | /* extended */ | |
80 | tt_trk_trkseg_trkpt_course, | |
81 | tt_trk_trkseg_trkpt_speed, | |
82 | tt_trk_trkseg_trkpt_fix, | |
83 | tt_trk_trkseg_trkpt_sat, | |
84 | ||
85 | tt_trk_trkseg_trkpt_hdop, | |
86 | tt_trk_trkseg_trkpt_vdop, | |
87 | tt_trk_trkseg_trkpt_pdop, | |
88 | ||
89 | tt_waypoint, | |
90 | tt_waypoint_coord, | |
91 | tt_waypoint_name, | |
92 | } tag_type; | |
93 | ||
94 | typedef struct tag_mapping { | |
95 | tag_type tag_type; /* enum from above for this tag */ | |
96 | const char *tag_name; /* xpath-ish tag name */ | |
97 | } tag_mapping; | |
98 | ||
99 | typedef struct { | |
100 | GpxWritingOptions *options; | |
101 | FILE *file; | |
102 | } GpxWritingContext; | |
103 | ||
104 | /* | |
105 | * xpath(ish) mappings between full tag paths and internal identifiers. | |
106 | * These appear in the order they appear in the GPX specification. | |
107 | * If it's not a tag we explicitly handle, it doesn't go here. | |
108 | */ | |
109 | ||
110 | tag_mapping tag_path_map[] = { | |
111 | ||
112 | { tt_gpx, "/gpx" }, | |
113 | { tt_gpx_name, "/gpx/name" }, | |
114 | { tt_gpx_desc, "/gpx/desc" }, | |
115 | { tt_gpx_time, "/gpx/time" }, | |
116 | { tt_gpx_author, "/gpx/author" }, | |
117 | { tt_gpx_keywords, "/gpx/keywords" }, | |
118 | ||
119 | // GPX 1.1 variant - basic properties moved into metadata namespace | |
120 | { tt_gpx_name, "/gpx/metadata/name" }, | |
121 | { tt_gpx_desc, "/gpx/metadata/desc" }, | |
122 | { tt_gpx_time, "/gpx/metadata/time" }, | |
123 | { tt_gpx_author, "/gpx/metadata/author" }, | |
124 | { tt_gpx_keywords, "/gpx/metadata/keywords" }, | |
125 | ||
126 | { tt_wpt, "/gpx/wpt" }, | |
127 | ||
128 | { tt_waypoint, "/loc/waypoint" }, | |
129 | { tt_waypoint_coord, "/loc/waypoint/coord" }, | |
130 | { tt_waypoint_name, "/loc/waypoint/name" }, | |
131 | ||
132 | { tt_wpt_ele, "/gpx/wpt/ele" }, | |
133 | { tt_wpt_time, "/gpx/wpt/time" }, | |
134 | { tt_wpt_name, "/gpx/wpt/name" }, | |
135 | { tt_wpt_cmt, "/gpx/wpt/cmt" }, | |
136 | { tt_wpt_desc, "/gpx/wpt/desc" }, | |
137 | { tt_wpt_sym, "/gpx/wpt/sym" }, | |
138 | { tt_wpt_sym, "/loc/waypoint/type" }, | |
139 | { tt_wpt_url, "/gpx/wpt/url" }, | |
140 | { tt_wpt_link, "/gpx/wpt/link" }, /* GPX 1.1 */ | |
141 | ||
142 | { tt_trk, "/gpx/trk" }, | |
143 | { tt_trk_name, "/gpx/trk/name" }, | |
144 | { tt_trk_cmt, "/gpx/trk/cmt" }, | |
145 | { tt_trk_desc, "/gpx/trk/desc" }, | |
146 | { tt_trk_trkseg, "/gpx/trk/trkseg" }, | |
147 | { tt_trk_trkseg_trkpt, "/gpx/trk/trkseg/trkpt" }, | |
148 | { tt_trk_trkseg_trkpt_ele, "/gpx/trk/trkseg/trkpt/ele" }, | |
149 | { tt_trk_trkseg_trkpt_time, "/gpx/trk/trkseg/trkpt/time" }, | |
150 | { tt_trk_trkseg_trkpt_name, "/gpx/trk/trkseg/trkpt/name" }, | |
151 | /* extended */ | |
152 | { tt_trk_trkseg_trkpt_course, "/gpx/trk/trkseg/trkpt/course" }, | |
153 | { tt_trk_trkseg_trkpt_speed, "/gpx/trk/trkseg/trkpt/speed" }, | |
154 | { tt_trk_trkseg_trkpt_fix, "/gpx/trk/trkseg/trkpt/fix" }, | |
155 | { tt_trk_trkseg_trkpt_sat, "/gpx/trk/trkseg/trkpt/sat" }, | |
156 | ||
157 | { tt_trk_trkseg_trkpt_hdop, "/gpx/trk/trkseg/trkpt/hdop" }, | |
158 | { tt_trk_trkseg_trkpt_vdop, "/gpx/trk/trkseg/trkpt/vdop" }, | |
159 | { tt_trk_trkseg_trkpt_pdop, "/gpx/trk/trkseg/trkpt/pdop" }, | |
160 | ||
161 | { tt_rte, "/gpx/rte" }, | |
162 | // NB Route reuses track point feature tags | |
163 | { tt_trk_name, "/gpx/rte/name" }, | |
164 | { tt_trk_cmt, "/gpx/rte/cmt" }, | |
165 | { tt_trk_desc, "/gpx/rte/desc" }, | |
166 | { tt_trk_trkseg_trkpt, "/gpx/rte/rtept" }, | |
167 | { tt_trk_trkseg_trkpt_name, "/gpx/rte/rtept/name" }, | |
168 | { tt_trk_trkseg_trkpt_ele, "/gpx/rte/rtept/ele" }, | |
169 | ||
170 | {0} | |
171 | }; | |
172 | ||
173 | static tag_type get_tag(const char *t) | |
174 | { | |
175 | tag_mapping *tm; | |
176 | for (tm = tag_path_map; tm->tag_type != 0; tm++) | |
177 | if (0 == strcmp(tm->tag_name, t)) | |
178 | return tm->tag_type; | |
179 | return tt_unknown; | |
180 | } | |
181 | ||
182 | /******************************************/ | |
183 | ||
184 | tag_type current_tag = tt_unknown; | |
185 | GString *xpath = NULL; | |
186 | GString *c_cdata = NULL; | |
187 | ||
188 | /* current ("c_") objects */ | |
189 | VikTrackpoint *c_tp = NULL; | |
190 | VikWaypoint *c_wp = NULL; | |
191 | VikTrack *c_tr = NULL; | |
192 | VikTRWMetadata *c_md = NULL; | |
193 | ||
194 | gchar *c_wp_name = NULL; | |
195 | gchar *c_tr_name = NULL; | |
196 | ||
197 | /* temporary things so we don't have to create them lots of times */ | |
198 | const gchar *c_slat, *c_slon; | |
199 | struct LatLon c_ll; | |
200 | ||
201 | /* specialty flags / etc */ | |
202 | gboolean f_tr_newseg; | |
203 | guint unnamed_waypoints = 0; | |
204 | guint unnamed_tracks = 0; | |
205 | guint unnamed_routes = 0; | |
206 | ||
207 | static const char *get_attr ( const char **attr, const char *key ) | |
208 | { | |
209 | while ( *attr ) { | |
210 | if ( strcmp(*attr,key) == 0 ) | |
211 | return *(attr + 1); | |
212 | attr += 2; | |
213 | } | |
214 | return NULL; | |
215 | } | |
216 | ||
217 | static gboolean set_c_ll ( const char **attr ) | |
218 | { | |
219 | if ( (c_slat = get_attr ( attr, "lat" )) && (c_slon = get_attr ( attr, "lon" )) ) { | |
220 | c_ll.lat = g_ascii_strtod(c_slat, NULL); | |
221 | c_ll.lon = g_ascii_strtod(c_slon, NULL); | |
222 | return TRUE; | |
223 | } | |
224 | return FALSE; | |
225 | } | |
226 | ||
227 | static void gpx_start(VikTrwLayer *vtl, const char *el, const char **attr) | |
228 | { | |
229 | static const gchar *tmp; | |
230 | ||
231 | g_string_append_c ( xpath, '/' ); | |
232 | g_string_append ( xpath, el ); | |
233 | current_tag = get_tag ( xpath->str ); | |
234 | ||
235 | switch ( current_tag ) { | |
236 | ||
237 | case tt_gpx: | |
238 | c_md = vik_trw_metadata_new(); | |
239 | break; | |
240 | ||
241 | case tt_wpt: | |
242 | if ( set_c_ll( attr ) ) { | |
243 | c_wp = vik_waypoint_new (); | |
244 | c_wp->visible = TRUE; | |
245 | if ( get_attr ( attr, "hidden" ) ) | |
246 | c_wp->visible = FALSE; | |
247 | ||
248 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
249 | } | |
250 | break; | |
251 | ||
252 | case tt_trk: | |
253 | case tt_rte: | |
254 | c_tr = vik_track_new (); | |
255 | vik_track_set_defaults ( c_tr ); | |
256 | c_tr->is_route = (current_tag == tt_rte) ? TRUE : FALSE; | |
257 | c_tr->visible = TRUE; | |
258 | if ( get_attr ( attr, "hidden" ) ) | |
259 | c_tr->visible = FALSE; | |
260 | break; | |
261 | ||
262 | case tt_trk_trkseg: | |
263 | f_tr_newseg = TRUE; | |
264 | break; | |
265 | ||
266 | case tt_trk_trkseg_trkpt: | |
267 | if ( set_c_ll( attr ) ) { | |
268 | c_tp = vik_trackpoint_new (); | |
269 | vik_coord_load_from_latlon ( &(c_tp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
270 | if ( f_tr_newseg ) { | |
271 | c_tp->newsegment = TRUE; | |
272 | f_tr_newseg = FALSE; | |
273 | } | |
274 | c_tr->trackpoints = g_list_append ( c_tr->trackpoints, c_tp ); | |
275 | } | |
276 | break; | |
277 | ||
278 | case tt_gpx_name: | |
279 | case tt_gpx_author: | |
280 | case tt_gpx_desc: | |
281 | case tt_gpx_keywords: | |
282 | case tt_gpx_time: | |
283 | case tt_trk_trkseg_trkpt_name: | |
284 | case tt_trk_trkseg_trkpt_ele: | |
285 | case tt_trk_trkseg_trkpt_time: | |
286 | case tt_wpt_cmt: | |
287 | case tt_wpt_desc: | |
288 | case tt_wpt_name: | |
289 | case tt_wpt_ele: | |
290 | case tt_wpt_time: | |
291 | case tt_wpt_url: | |
292 | case tt_wpt_link: | |
293 | case tt_trk_cmt: | |
294 | case tt_trk_desc: | |
295 | case tt_trk_name: | |
296 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer */ | |
297 | break; | |
298 | ||
299 | case tt_waypoint: | |
300 | c_wp = vik_waypoint_new (); | |
301 | c_wp->visible = TRUE; | |
302 | break; | |
303 | ||
304 | case tt_waypoint_coord: | |
305 | if ( set_c_ll( attr ) ) | |
306 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
307 | break; | |
308 | ||
309 | case tt_waypoint_name: | |
310 | if ( ( tmp = get_attr(attr, "id") ) ) { | |
311 | if ( c_wp_name ) | |
312 | g_free ( c_wp_name ); | |
313 | c_wp_name = g_strdup ( tmp ); | |
314 | } | |
315 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer for description */ | |
316 | break; | |
317 | ||
318 | default: break; | |
319 | } | |
320 | } | |
321 | ||
322 | static void gpx_end(VikTrwLayer *vtl, const char *el) | |
323 | { | |
324 | static GTimeVal tp_time; | |
325 | static GTimeVal wp_time; | |
326 | ||
327 | g_string_truncate ( xpath, xpath->len - strlen(el) - 1 ); | |
328 | ||
329 | switch ( current_tag ) { | |
330 | ||
331 | case tt_gpx: | |
332 | vik_trw_layer_set_metadata ( vtl, c_md ); | |
333 | c_md = NULL; | |
334 | break; | |
335 | ||
336 | case tt_gpx_name: | |
337 | vik_layer_rename ( VIK_LAYER(vtl), c_cdata->str ); | |
338 | g_string_erase ( c_cdata, 0, -1 ); | |
339 | break; | |
340 | ||
341 | case tt_gpx_author: | |
342 | if ( c_md->author ) | |
343 | g_free ( c_md->description ); | |
344 | c_md->author = g_strdup ( c_cdata->str ); | |
345 | g_string_erase ( c_cdata, 0, -1 ); | |
346 | break; | |
347 | ||
348 | case tt_gpx_desc: | |
349 | if ( c_md->description ) | |
350 | g_free ( c_md->description ); | |
351 | c_md->description = g_strdup ( c_cdata->str ); | |
352 | g_string_erase ( c_cdata, 0, -1 ); | |
353 | break; | |
354 | ||
355 | case tt_gpx_keywords: | |
356 | if ( c_md->keywords ) | |
357 | g_free ( c_md->keywords ); | |
358 | c_md->keywords = g_strdup ( c_cdata->str ); | |
359 | g_string_erase ( c_cdata, 0, -1 ); | |
360 | break; | |
361 | ||
362 | case tt_gpx_time: | |
363 | if ( c_md->timestamp ) | |
364 | g_free ( c_md->timestamp ); | |
365 | c_md->timestamp = g_strdup ( c_cdata->str ); | |
366 | g_string_erase ( c_cdata, 0, -1 ); | |
367 | break; | |
368 | ||
369 | case tt_waypoint: | |
370 | case tt_wpt: | |
371 | if ( ! c_wp_name ) | |
372 | c_wp_name = g_strdup_printf("VIKING_WP%04d", unnamed_waypoints++); | |
373 | vik_trw_layer_filein_add_waypoint ( vtl, c_wp_name, c_wp ); | |
374 | g_free ( c_wp_name ); | |
375 | c_wp = NULL; | |
376 | c_wp_name = NULL; | |
377 | break; | |
378 | ||
379 | case tt_trk: | |
380 | if ( ! c_tr_name ) | |
381 | c_tr_name = g_strdup_printf("VIKING_TR%03d", unnamed_tracks++); | |
382 | // Delibrate fall through | |
383 | case tt_rte: | |
384 | if ( ! c_tr_name ) | |
385 | c_tr_name = g_strdup_printf("VIKING_RT%03d", unnamed_routes++); | |
386 | vik_trw_layer_filein_add_track ( vtl, c_tr_name, c_tr ); | |
387 | g_free ( c_tr_name ); | |
388 | c_tr = NULL; | |
389 | c_tr_name = NULL; | |
390 | break; | |
391 | ||
392 | case tt_wpt_name: | |
393 | if ( c_wp_name ) | |
394 | g_free ( c_wp_name ); | |
395 | c_wp_name = g_strdup ( c_cdata->str ); | |
396 | g_string_erase ( c_cdata, 0, -1 ); | |
397 | break; | |
398 | ||
399 | case tt_trk_name: | |
400 | if ( c_tr_name ) | |
401 | g_free ( c_tr_name ); | |
402 | c_tr_name = g_strdup ( c_cdata->str ); | |
403 | g_string_erase ( c_cdata, 0, -1 ); | |
404 | break; | |
405 | ||
406 | case tt_wpt_ele: | |
407 | c_wp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); | |
408 | g_string_erase ( c_cdata, 0, -1 ); | |
409 | break; | |
410 | ||
411 | case tt_trk_trkseg_trkpt_ele: | |
412 | c_tp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); | |
413 | g_string_erase ( c_cdata, 0, -1 ); | |
414 | break; | |
415 | ||
416 | case tt_waypoint_name: /* .loc name is really description. */ | |
417 | case tt_wpt_desc: | |
418 | vik_waypoint_set_description ( c_wp, c_cdata->str ); | |
419 | g_string_erase ( c_cdata, 0, -1 ); | |
420 | break; | |
421 | ||
422 | case tt_wpt_cmt: | |
423 | vik_waypoint_set_comment ( c_wp, c_cdata->str ); | |
424 | g_string_erase ( c_cdata, 0, -1 ); | |
425 | break; | |
426 | ||
427 | case tt_wpt_url: | |
428 | vik_waypoint_set_url ( c_wp, c_cdata->str ); | |
429 | g_string_erase ( c_cdata, 0, -1 ); | |
430 | break; | |
431 | ||
432 | case tt_wpt_link: | |
433 | vik_waypoint_set_image ( c_wp, c_cdata->str ); | |
434 | g_string_erase ( c_cdata, 0, -1 ); | |
435 | break; | |
436 | ||
437 | case tt_wpt_sym: { | |
438 | vik_waypoint_set_symbol ( c_wp, c_cdata->str ); | |
439 | g_string_erase ( c_cdata, 0, -1 ); | |
440 | break; | |
441 | } | |
442 | ||
443 | case tt_trk_desc: | |
444 | vik_track_set_description ( c_tr, c_cdata->str ); | |
445 | g_string_erase ( c_cdata, 0, -1 ); | |
446 | break; | |
447 | ||
448 | case tt_trk_cmt: | |
449 | vik_track_set_comment ( c_tr, c_cdata->str ); | |
450 | g_string_erase ( c_cdata, 0, -1 ); | |
451 | break; | |
452 | ||
453 | case tt_wpt_time: | |
454 | if ( g_time_val_from_iso8601(c_cdata->str, &wp_time) ) { | |
455 | c_wp->timestamp = wp_time.tv_sec; | |
456 | c_wp->has_timestamp = TRUE; | |
457 | } | |
458 | g_string_erase ( c_cdata, 0, -1 ); | |
459 | break; | |
460 | ||
461 | case tt_trk_trkseg_trkpt_name: | |
462 | vik_trackpoint_set_name ( c_tp, c_cdata->str ); | |
463 | g_string_erase ( c_cdata, 0, -1 ); | |
464 | break; | |
465 | ||
466 | case tt_trk_trkseg_trkpt_time: | |
467 | if ( g_time_val_from_iso8601(c_cdata->str, &tp_time) ) { | |
468 | c_tp->timestamp = tp_time.tv_sec; | |
469 | c_tp->has_timestamp = TRUE; | |
470 | } | |
471 | g_string_erase ( c_cdata, 0, -1 ); | |
472 | break; | |
473 | ||
474 | case tt_trk_trkseg_trkpt_course: | |
475 | c_tp->course = g_ascii_strtod ( c_cdata->str, NULL ); | |
476 | g_string_erase ( c_cdata, 0, -1 ); | |
477 | break; | |
478 | ||
479 | case tt_trk_trkseg_trkpt_speed: | |
480 | c_tp->speed = g_ascii_strtod ( c_cdata->str, NULL ); | |
481 | g_string_erase ( c_cdata, 0, -1 ); | |
482 | break; | |
483 | ||
484 | case tt_trk_trkseg_trkpt_fix: | |
485 | if (!strcmp("2d", c_cdata->str)) | |
486 | c_tp->fix_mode = VIK_GPS_MODE_2D; | |
487 | else if (!strcmp("3d", c_cdata->str)) | |
488 | c_tp->fix_mode = VIK_GPS_MODE_3D; | |
489 | else /* TODO: more fix modes here */ | |
490 | c_tp->fix_mode = VIK_GPS_MODE_NOT_SEEN; | |
491 | g_string_erase ( c_cdata, 0, -1 ); | |
492 | break; | |
493 | ||
494 | case tt_trk_trkseg_trkpt_sat: | |
495 | c_tp->nsats = atoi ( c_cdata->str ); | |
496 | g_string_erase ( c_cdata, 0, -1 ); | |
497 | break; | |
498 | ||
499 | case tt_trk_trkseg_trkpt_hdop: | |
500 | c_tp->hdop = g_strtod ( c_cdata->str, NULL ); | |
501 | g_string_erase ( c_cdata, 0, -1 ); | |
502 | break; | |
503 | ||
504 | case tt_trk_trkseg_trkpt_vdop: | |
505 | c_tp->vdop = g_strtod ( c_cdata->str, NULL ); | |
506 | g_string_erase ( c_cdata, 0, -1 ); | |
507 | break; | |
508 | ||
509 | case tt_trk_trkseg_trkpt_pdop: | |
510 | c_tp->pdop = g_strtod ( c_cdata->str, NULL ); | |
511 | g_string_erase ( c_cdata, 0, -1 ); | |
512 | break; | |
513 | ||
514 | default: break; | |
515 | } | |
516 | ||
517 | current_tag = get_tag ( xpath->str ); | |
518 | } | |
519 | ||
520 | static void gpx_cdata(void *dta, const XML_Char *s, int len) | |
521 | { | |
522 | switch ( current_tag ) { | |
523 | case tt_gpx_name: | |
524 | case tt_gpx_author: | |
525 | case tt_gpx_desc: | |
526 | case tt_gpx_keywords: | |
527 | case tt_gpx_time: | |
528 | case tt_wpt_name: | |
529 | case tt_trk_name: | |
530 | case tt_wpt_ele: | |
531 | case tt_trk_trkseg_trkpt_ele: | |
532 | case tt_wpt_cmt: | |
533 | case tt_wpt_desc: | |
534 | case tt_wpt_sym: | |
535 | case tt_wpt_url: | |
536 | case tt_wpt_link: | |
537 | case tt_trk_cmt: | |
538 | case tt_trk_desc: | |
539 | case tt_trk_trkseg_trkpt_time: | |
540 | case tt_wpt_time: | |
541 | case tt_trk_trkseg_trkpt_name: | |
542 | case tt_trk_trkseg_trkpt_course: | |
543 | case tt_trk_trkseg_trkpt_speed: | |
544 | case tt_trk_trkseg_trkpt_fix: | |
545 | case tt_trk_trkseg_trkpt_sat: | |
546 | case tt_trk_trkseg_trkpt_hdop: | |
547 | case tt_trk_trkseg_trkpt_vdop: | |
548 | case tt_trk_trkseg_trkpt_pdop: | |
549 | case tt_waypoint_name: /* .loc name is really description. */ | |
550 | g_string_append_len ( c_cdata, s, len ); | |
551 | break; | |
552 | ||
553 | default: break; /* ignore cdata from other things */ | |
554 | } | |
555 | } | |
556 | ||
557 | // make like a "stack" of tag names | |
558 | // like gpspoint's separated like /gpx/wpt/whatever | |
559 | ||
560 | gboolean a_gpx_read_file( VikTrwLayer *vtl, FILE *f ) { | |
561 | XML_Parser parser = XML_ParserCreate(NULL); | |
562 | int done=0, len; | |
563 | enum XML_Status status = XML_STATUS_ERROR; | |
564 | ||
565 | XML_SetElementHandler(parser, (XML_StartElementHandler) gpx_start, (XML_EndElementHandler) gpx_end); | |
566 | XML_SetUserData(parser, vtl); /* in the future we could remove all global variables */ | |
567 | XML_SetCharacterDataHandler(parser, (XML_CharacterDataHandler) gpx_cdata); | |
568 | ||
569 | gchar buf[4096]; | |
570 | ||
571 | g_assert ( f != NULL && vtl != NULL ); | |
572 | ||
573 | xpath = g_string_new ( "" ); | |
574 | c_cdata = g_string_new ( "" ); | |
575 | ||
576 | unnamed_waypoints = 1; | |
577 | unnamed_tracks = 1; | |
578 | unnamed_routes = 1; | |
579 | ||
580 | while (!done) { | |
581 | len = fread(buf, 1, sizeof(buf)-7, f); | |
582 | done = feof(f) || !len; | |
583 | status = XML_Parse(parser, buf, len, done); | |
584 | } | |
585 | ||
586 | XML_ParserFree (parser); | |
587 | g_string_free ( xpath, TRUE ); | |
588 | g_string_free ( c_cdata, TRUE ); | |
589 | ||
590 | return status != XML_STATUS_ERROR; | |
591 | } | |
592 | ||
593 | /**** entitize from GPSBabel ****/ | |
594 | typedef struct { | |
595 | const char * text; | |
596 | const char * entity; | |
597 | int not_html; | |
598 | } entity_types; | |
599 | ||
600 | static | |
601 | entity_types stdentities[] = { | |
602 | { "&", "&", 0 }, | |
603 | { "'", "'", 1 }, | |
604 | { "<", "<", 0 }, | |
605 | { ">", ">", 0 }, | |
606 | { "\"", """, 0 }, | |
607 | { NULL, NULL, 0 } | |
608 | }; | |
609 | ||
610 | void utf8_to_int( const char *cp, int *bytes, int *value ) | |
611 | { | |
612 | if ( (*cp & 0xe0) == 0xc0 ) { | |
613 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
614 | *bytes = 2; | |
615 | *value = ((*cp & 0x1f) << 6) | | |
616 | (*(cp+1) & 0x3f); | |
617 | } | |
618 | else if ( (*cp & 0xf0) == 0xe0 ) { | |
619 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
620 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
621 | *bytes = 3; | |
622 | *value = ((*cp & 0x0f) << 12) | | |
623 | ((*(cp+1) & 0x3f) << 6) | | |
624 | (*(cp+2) & 0x3f); | |
625 | } | |
626 | else if ( (*cp & 0xf8) == 0xf0 ) { | |
627 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
628 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
629 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
630 | *bytes = 4; | |
631 | *value = ((*cp & 0x07) << 18) | | |
632 | ((*(cp+1) & 0x3f) << 12) | | |
633 | ((*(cp+2) & 0x3f) << 6) | | |
634 | (*(cp+3) & 0x3f); | |
635 | } | |
636 | else if ( (*cp & 0xfc) == 0xf8 ) { | |
637 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
638 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
639 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
640 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
641 | *bytes = 5; | |
642 | *value = ((*cp & 0x03) << 24) | | |
643 | ((*(cp+1) & 0x3f) << 18) | | |
644 | ((*(cp+2) & 0x3f) << 12) | | |
645 | ((*(cp+3) & 0x3f) << 6) | | |
646 | (*(cp+4) & 0x3f); | |
647 | } | |
648 | else if ( (*cp & 0xfe) == 0xfc ) { | |
649 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
650 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
651 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
652 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
653 | if ( (*(cp+5) & 0xc0) != 0x80 ) goto dodefault; | |
654 | *bytes = 6; | |
655 | *value = ((*cp & 0x01) << 30) | | |
656 | ((*(cp+1) & 0x3f) << 24) | | |
657 | ((*(cp+2) & 0x3f) << 18) | | |
658 | ((*(cp+3) & 0x3f) << 12) | | |
659 | ((*(cp+4) & 0x3f) << 6) | | |
660 | (*(cp+5) & 0x3f); | |
661 | } | |
662 | else { | |
663 | dodefault: | |
664 | *bytes = 1; | |
665 | *value = (unsigned char)*cp; | |
666 | } | |
667 | } | |
668 | ||
669 | static | |
670 | char * | |
671 | entitize(const char * str) | |
672 | { | |
673 | int elen, ecount, nsecount; | |
674 | entity_types *ep; | |
675 | const char * cp; | |
676 | char * p, * tmp, * xstr; | |
677 | ||
678 | char tmpsub[20]; | |
679 | int bytes = 0; | |
680 | int value = 0; | |
681 | ep = stdentities; | |
682 | elen = ecount = nsecount = 0; | |
683 | ||
684 | /* figure # of entity replacements and additional size. */ | |
685 | while (ep->text) { | |
686 | cp = str; | |
687 | while ((cp = strstr(cp, ep->text)) != NULL) { | |
688 | elen += strlen(ep->entity) - strlen(ep->text); | |
689 | ecount++; | |
690 | cp += strlen(ep->text); | |
691 | } | |
692 | ep++; | |
693 | } | |
694 | ||
695 | /* figure the same for other than standard entities (i.e. anything | |
696 | * that isn't in the range U+0000 to U+007F */ | |
697 | for ( cp = str; *cp; cp++ ) { | |
698 | if ( *cp & 0x80 ) { | |
699 | ||
700 | utf8_to_int( cp, &bytes, &value ); | |
701 | cp += bytes-1; | |
702 | elen += sprintf( tmpsub, "&#x%x;", value ) - bytes; | |
703 | nsecount++; | |
704 | } | |
705 | } | |
706 | ||
707 | /* enough space for the whole string plus entity replacements, if any */ | |
708 | tmp = g_malloc((strlen(str) + elen + 1)); | |
709 | strcpy(tmp, str); | |
710 | ||
711 | /* no entity replacements */ | |
712 | if (ecount == 0 && nsecount == 0) | |
713 | return (tmp); | |
714 | ||
715 | if ( ecount != 0 ) { | |
716 | for (ep = stdentities; ep->text; ep++) { | |
717 | p = tmp; | |
718 | while ((p = strstr(p, ep->text)) != NULL) { | |
719 | elen = strlen(ep->entity); | |
720 | ||
721 | xstr = g_strdup(p + strlen(ep->text)); | |
722 | ||
723 | strcpy(p, ep->entity); | |
724 | strcpy(p + elen, xstr); | |
725 | ||
726 | g_free(xstr); | |
727 | ||
728 | p += elen; | |
729 | } | |
730 | } | |
731 | } | |
732 | ||
733 | if ( nsecount != 0 ) { | |
734 | p = tmp; | |
735 | while (*p) { | |
736 | if ( *p & 0x80 ) { | |
737 | utf8_to_int( p, &bytes, &value ); | |
738 | if ( p[bytes] ) { | |
739 | xstr = g_strdup( p + bytes ); | |
740 | } | |
741 | else { | |
742 | xstr = NULL; | |
743 | } | |
744 | sprintf( p, "&#x%x;", value ); | |
745 | p = p+strlen(p); | |
746 | if ( xstr ) { | |
747 | strcpy( p, xstr ); | |
748 | g_free(xstr); | |
749 | } | |
750 | } | |
751 | else { | |
752 | p++; | |
753 | } | |
754 | } | |
755 | } | |
756 | return (tmp); | |
757 | } | |
758 | /**** end GPSBabel code ****/ | |
759 | ||
760 | /* export GPX */ | |
761 | ||
762 | static void gpx_write_waypoint ( VikWaypoint *wp, GpxWritingContext *context ) | |
763 | { | |
764 | // Don't write invisible waypoints when specified | |
765 | if (context->options && !context->options->hidden && !wp->visible) | |
766 | return; | |
767 | ||
768 | FILE *f = context->file; | |
769 | static struct LatLon ll; | |
770 | gchar *s_lat,*s_lon; | |
771 | gchar *tmp; | |
772 | vik_coord_to_latlon ( &(wp->coord), &ll ); | |
773 | s_lat = a_coords_dtostr( ll.lat ); | |
774 | s_lon = a_coords_dtostr( ll.lon ); | |
775 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' | |
776 | // luckily most other GPX processing software ignores things they don't understand | |
777 | fprintf ( f, "<wpt lat=\"%s\" lon=\"%s\"%s>\n", | |
778 | s_lat, s_lon, wp->visible ? "" : " hidden=\"hidden\"" ); | |
779 | g_free ( s_lat ); | |
780 | g_free ( s_lon ); | |
781 | ||
782 | // Sanity clause | |
783 | if ( wp->name ) | |
784 | tmp = entitize ( wp->name ); | |
785 | else | |
786 | tmp = g_strdup ("waypoint"); | |
787 | ||
788 | fprintf ( f, " <name>%s</name>\n", tmp ); | |
789 | g_free ( tmp); | |
790 | ||
791 | if ( wp->altitude != VIK_DEFAULT_ALTITUDE ) | |
792 | { | |
793 | tmp = a_coords_dtostr ( wp->altitude ); | |
794 | fprintf ( f, " <ele>%s</ele>\n", tmp ); | |
795 | g_free ( tmp ); | |
796 | } | |
797 | ||
798 | if ( wp->has_timestamp ) { | |
799 | GTimeVal timestamp; | |
800 | timestamp.tv_sec = wp->timestamp; | |
801 | timestamp.tv_usec = 0; | |
802 | ||
803 | gchar *time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
804 | if ( time_iso8601 != NULL ) | |
805 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
806 | g_free ( time_iso8601 ); | |
807 | } | |
808 | ||
809 | if ( wp->comment ) | |
810 | { | |
811 | tmp = entitize(wp->comment); | |
812 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); | |
813 | g_free ( tmp ); | |
814 | } | |
815 | if ( wp->description ) | |
816 | { | |
817 | tmp = entitize(wp->description); | |
818 | fprintf ( f, " <desc>%s</desc>\n", tmp ); | |
819 | g_free ( tmp ); | |
820 | } | |
821 | if ( wp->url ) | |
822 | { | |
823 | tmp = entitize(wp->url); | |
824 | fprintf ( f, " <url>%s</url>\n", tmp ); | |
825 | g_free ( tmp ); | |
826 | } | |
827 | if ( wp->image ) | |
828 | { | |
829 | tmp = entitize(wp->image); | |
830 | fprintf ( f, " <link>%s</link>\n", tmp ); | |
831 | g_free ( tmp ); | |
832 | } | |
833 | if ( wp->symbol ) | |
834 | { | |
835 | tmp = entitize(wp->symbol); | |
836 | if ( a_vik_gpx_export_wpt_sym_name ( ) ) { | |
837 | // Lowercase the symbol name | |
838 | gchar *tmp2 = g_utf8_strdown ( tmp, -1 ); | |
839 | fprintf ( f, " <sym>%s</sym>\n", tmp2 ); | |
840 | g_free ( tmp2 ); | |
841 | } | |
842 | else | |
843 | fprintf ( f, " <sym>%s</sym>\n", tmp); | |
844 | g_free ( tmp ); | |
845 | } | |
846 | ||
847 | fprintf ( f, "</wpt>\n" ); | |
848 | } | |
849 | ||
850 | static void gpx_write_trackpoint ( VikTrackpoint *tp, GpxWritingContext *context ) | |
851 | { | |
852 | FILE *f = context->file; | |
853 | static struct LatLon ll; | |
854 | gchar *s_lat,*s_lon, *s_alt, *s_dop; | |
855 | gchar *time_iso8601; | |
856 | vik_coord_to_latlon ( &(tp->coord), &ll ); | |
857 | ||
858 | // No such thing as a rteseg! So make sure we don't put them in | |
859 | if ( context->options && !context->options->is_route && tp->newsegment ) | |
860 | fprintf ( f, " </trkseg>\n <trkseg>\n" ); | |
861 | ||
862 | s_lat = a_coords_dtostr( ll.lat ); | |
863 | s_lon = a_coords_dtostr( ll.lon ); | |
864 | fprintf ( f, " <%spt lat=\"%s\" lon=\"%s\">\n", (context->options && context->options->is_route) ? "rte" : "trk", s_lat, s_lon ); | |
865 | g_free ( s_lat ); s_lat = NULL; | |
866 | g_free ( s_lon ); s_lon = NULL; | |
867 | ||
868 | if (tp->name) { | |
869 | gchar *s_name = entitize(tp->name); | |
870 | fprintf ( f, " <name>%s</name>\n", s_name ); | |
871 | g_free(s_name); | |
872 | } | |
873 | ||
874 | s_alt = NULL; | |
875 | if ( tp->altitude != VIK_DEFAULT_ALTITUDE ) | |
876 | { | |
877 | s_alt = a_coords_dtostr ( tp->altitude ); | |
878 | } | |
879 | else if ( context->options != NULL && context->options->force_ele ) | |
880 | { | |
881 | s_alt = a_coords_dtostr ( 0 ); | |
882 | } | |
883 | if (s_alt != NULL) | |
884 | fprintf ( f, " <ele>%s</ele>\n", s_alt ); | |
885 | g_free ( s_alt ); s_alt = NULL; | |
886 | ||
887 | time_iso8601 = NULL; | |
888 | if ( tp->has_timestamp ) { | |
889 | GTimeVal timestamp; | |
890 | timestamp.tv_sec = tp->timestamp; | |
891 | timestamp.tv_usec = 0; | |
892 | ||
893 | time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
894 | } | |
895 | else if ( context->options != NULL && context->options->force_time ) | |
896 | { | |
897 | GTimeVal current; | |
898 | g_get_current_time ( ¤t ); | |
899 | ||
900 | time_iso8601 = g_time_val_to_iso8601 ( ¤t ); | |
901 | } | |
902 | if ( time_iso8601 != NULL ) | |
903 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
904 | g_free(time_iso8601); | |
905 | time_iso8601 = NULL; | |
906 | ||
907 | if (!isnan(tp->course)) { | |
908 | gchar *s_course = a_coords_dtostr(tp->course); | |
909 | fprintf ( f, " <course>%s</course>\n", s_course ); | |
910 | g_free(s_course); | |
911 | } | |
912 | if (!isnan(tp->speed)) { | |
913 | gchar *s_speed = a_coords_dtostr(tp->speed); | |
914 | fprintf ( f, " <speed>%s</speed>\n", s_speed ); | |
915 | g_free(s_speed); | |
916 | } | |
917 | if (tp->fix_mode == VIK_GPS_MODE_2D) | |
918 | fprintf ( f, " <fix>2d</fix>\n"); | |
919 | if (tp->fix_mode == VIK_GPS_MODE_3D) | |
920 | fprintf ( f, " <fix>3d</fix>\n"); | |
921 | if (tp->nsats > 0) | |
922 | fprintf ( f, " <sat>%d</sat>\n", tp->nsats ); | |
923 | ||
924 | s_dop = NULL; | |
925 | if ( tp->hdop != VIK_DEFAULT_DOP ) | |
926 | { | |
927 | s_dop = a_coords_dtostr ( tp->hdop ); | |
928 | } | |
929 | if (s_dop != NULL) | |
930 | fprintf ( f, " <hdop>%s</hdop>\n", s_dop ); | |
931 | g_free ( s_dop ); s_dop = NULL; | |
932 | ||
933 | if ( tp->vdop != VIK_DEFAULT_DOP ) | |
934 | { | |
935 | s_dop = a_coords_dtostr ( tp->vdop ); | |
936 | } | |
937 | if (s_dop != NULL) | |
938 | fprintf ( f, " <vdop>%s</vdop>\n", s_dop ); | |
939 | g_free ( s_dop ); s_dop = NULL; | |
940 | ||
941 | if ( tp->pdop != VIK_DEFAULT_DOP ) | |
942 | { | |
943 | s_dop = a_coords_dtostr ( tp->pdop ); | |
944 | } | |
945 | if (s_dop != NULL) | |
946 | fprintf ( f, " <pdop>%s</pdop>\n", s_dop ); | |
947 | g_free ( s_dop ); s_dop = NULL; | |
948 | ||
949 | fprintf ( f, " </%spt>\n", (context->options && context->options->is_route) ? "rte" : "trk" ); | |
950 | } | |
951 | ||
952 | ||
953 | static void gpx_write_track ( VikTrack *t, GpxWritingContext *context ) | |
954 | { | |
955 | // Don't write invisible tracks when specified | |
956 | if (context->options && !context->options->hidden && !t->visible) | |
957 | return; | |
958 | ||
959 | FILE *f = context->file; | |
960 | gchar *tmp; | |
961 | gboolean first_tp_is_newsegment = FALSE; /* must temporarily make it not so, but we want to restore state. not that it matters. */ | |
962 | ||
963 | // Sanity clause | |
964 | if ( t->name ) | |
965 | tmp = entitize ( t->name ); | |
966 | else | |
967 | tmp = g_strdup ("track"); | |
968 | ||
969 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' | |
970 | // luckily most other GPX processing software ignores things they don't understand | |
971 | fprintf ( f, "<%s%s>\n <name>%s</name>\n", | |
972 | t->is_route ? "rte" : "trk", | |
973 | t->visible ? "" : " hidden=\"hidden\"", | |
974 | tmp ); | |
975 | g_free ( tmp ); | |
976 | ||
977 | if ( t->comment ) | |
978 | { | |
979 | tmp = entitize ( t->comment ); | |
980 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); | |
981 | g_free ( tmp ); | |
982 | } | |
983 | ||
984 | if ( t->description ) | |
985 | { | |
986 | tmp = entitize ( t->description ); | |
987 | fprintf ( f, " <desc>%s</desc>\n", tmp ); | |
988 | g_free ( tmp ); | |
989 | } | |
990 | ||
991 | /* No such thing as a rteseg! */ | |
992 | if ( !t->is_route ) | |
993 | fprintf ( f, " <trkseg>\n" ); | |
994 | ||
995 | if ( t->trackpoints && t->trackpoints->data ) { | |
996 | first_tp_is_newsegment = VIK_TRACKPOINT(t->trackpoints->data)->newsegment; | |
997 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = FALSE; /* so we won't write </trkseg><trkseg> already */ | |
998 | g_list_foreach ( t->trackpoints, (GFunc) gpx_write_trackpoint, context ); | |
999 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = first_tp_is_newsegment; /* restore state */ | |
1000 | } | |
1001 | ||
1002 | /* NB apparently no such thing as a rteseg! */ | |
1003 | if (!t->is_route) | |
1004 | fprintf ( f, " </trkseg>\n"); | |
1005 | ||
1006 | fprintf ( f, "</%s>\n", t->is_route ? "rte" : "trk" ); | |
1007 | } | |
1008 | ||
1009 | static void gpx_write_header( FILE *f ) | |
1010 | { | |
1011 | fprintf(f, "<?xml version=\"1.0\"?>\n" | |
1012 | "<gpx version=\"1.0\" creator=\"Viking -- http://viking.sf.net/\"\n" | |
1013 | "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" | |
1014 | "xmlns=\"http://www.topografix.com/GPX/1/0\"\n" | |
1015 | "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n"); | |
1016 | } | |
1017 | ||
1018 | static void gpx_write_footer( FILE *f ) | |
1019 | { | |
1020 | fprintf(f, "</gpx>\n"); | |
1021 | } | |
1022 | ||
1023 | static int gpx_waypoint_compare(const void *x, const void *y) | |
1024 | { | |
1025 | VikWaypoint *a = (VikWaypoint *)x; | |
1026 | VikWaypoint *b = (VikWaypoint *)y; | |
1027 | return strcmp(a->name,b->name); | |
1028 | } | |
1029 | ||
1030 | static int gpx_track_compare_name(const void *x, const void *y) | |
1031 | { | |
1032 | VikTrack *a = (VikTrack *)x; | |
1033 | VikTrack *b = (VikTrack *)y; | |
1034 | return strcmp(a->name,b->name); | |
1035 | } | |
1036 | ||
1037 | void a_gpx_write_file ( VikTrwLayer *vtl, FILE *f, GpxWritingOptions *options ) | |
1038 | { | |
1039 | GpxWritingContext context = { options, f }; | |
1040 | ||
1041 | gpx_write_header ( f ); | |
1042 | ||
1043 | gchar *tmp; | |
1044 | const gchar *name = vik_layer_get_name(VIK_LAYER(vtl)); | |
1045 | if ( name ) { | |
1046 | tmp = entitize ( name ); | |
1047 | fprintf ( f, " <name>%s</name>\n", tmp ); | |
1048 | g_free ( tmp ); | |
1049 | } | |
1050 | ||
1051 | VikTRWMetadata *md = vik_trw_layer_get_metadata (vtl); | |
1052 | if ( md ) { | |
1053 | if ( md->author ) { | |
1054 | tmp = entitize ( md->author ); | |
1055 | fprintf ( f, " <author>%s</author>\n", tmp ); | |
1056 | g_free ( tmp ); | |
1057 | } | |
1058 | if ( md->description ) { | |
1059 | tmp = entitize ( md->description ); | |
1060 | fprintf ( f, " <desc>%s</desc>\n", tmp ); | |
1061 | g_free ( tmp ); | |
1062 | } | |
1063 | if ( md->timestamp ) { | |
1064 | tmp = entitize ( md->timestamp ); | |
1065 | fprintf ( f, " <time>%s</time>\n", tmp ); | |
1066 | g_free ( tmp ); | |
1067 | } | |
1068 | if ( md->keywords ) { | |
1069 | tmp = entitize ( md->keywords ); | |
1070 | fprintf ( f, " <keywords>%s</keywords>\n", tmp ); | |
1071 | g_free ( tmp ); | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | // gather waypoints in a list, then sort | |
1076 | // g_hash_table_get_values: glib 2.14+ | |
1077 | GList *gl = g_hash_table_get_values ( vik_trw_layer_get_waypoints ( vtl ) ); | |
1078 | gl = g_list_sort ( gl, gpx_waypoint_compare ); | |
1079 | ||
1080 | GList *iter; | |
1081 | for (iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { | |
1082 | gpx_write_waypoint ( (VikWaypoint*)iter->data, &context ); | |
1083 | } | |
1084 | ||
1085 | g_list_free ( gl ); | |
1086 | ||
1087 | //gl = g_hash_table_get_values ( vik_trw_layer_get_tracks ( vtl ) ); | |
1088 | // Forming the list manually seems to produce one that is more likely to be nearer to the creation order | |
1089 | gl = NULL; | |
1090 | gpointer key, value; | |
1091 | GHashTableIter ght_iter; | |
1092 | g_hash_table_iter_init ( &ght_iter, vik_trw_layer_get_tracks ( vtl ) ); | |
1093 | while ( g_hash_table_iter_next (&ght_iter, &key, &value) ) { | |
1094 | gl = g_list_prepend ( gl ,value ); | |
1095 | } | |
1096 | gl = g_list_reverse ( gl ); | |
1097 | ||
1098 | // Sort method determined by preference | |
1099 | if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_TIME ) | |
1100 | gl = g_list_sort ( gl, vik_track_compare_timestamp ); | |
1101 | else if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_ALPHA ) | |
1102 | gl = g_list_sort ( gl, gpx_track_compare_name ); | |
1103 | ||
1104 | // Routes sorted by name | |
1105 | GList *glrte = g_hash_table_get_values ( vik_trw_layer_get_routes ( vtl ) ); | |
1106 | glrte = g_list_sort ( glrte, gpx_track_compare_name ); | |
1107 | ||
1108 | // g_list_concat doesn't copy memory properly | |
1109 | // so process each list separately | |
1110 | ||
1111 | GpxWritingContext context_tmp = context; | |
1112 | GpxWritingOptions opt_tmp = { FALSE, FALSE, FALSE, FALSE }; | |
1113 | // Force trackpoints on tracks | |
1114 | if ( !context.options ) | |
1115 | context_tmp.options = &opt_tmp; | |
1116 | context_tmp.options->is_route = FALSE; | |
1117 | ||
1118 | // Loop around each list and write each one | |
1119 | for (iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { | |
1120 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); | |
1121 | } | |
1122 | ||
1123 | // Routes (to get routepoints) | |
1124 | context_tmp.options->is_route = TRUE; | |
1125 | for (iter = g_list_first (glrte); iter != NULL; iter = g_list_next (iter)) { | |
1126 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); | |
1127 | } | |
1128 | ||
1129 | g_list_free ( gl ); | |
1130 | g_list_free ( glrte ); | |
1131 | ||
1132 | gpx_write_footer ( f ); | |
1133 | } | |
1134 | ||
1135 | void a_gpx_write_track_file ( VikTrack *trk, FILE *f, GpxWritingOptions *options ) | |
1136 | { | |
1137 | GpxWritingContext context = {options, f}; | |
1138 | gpx_write_header ( f ); | |
1139 | gpx_write_track ( trk, &context ); | |
1140 | gpx_write_footer ( f ); | |
1141 | } |