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Commit | Line | Data |
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8c4f1350 EB |
1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
a482007a GB |
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> | |
415b0e21 | 8 | * Copyright (c) 2012-2014, Rob Norris <rw_norris@hotmail.com> |
8c4f1350 | 9 | * |
bf35388d EB |
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 | * | |
8c4f1350 EB |
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 | */ | |
8c00358d GB |
29 | #ifdef HAVE_CONFIG_H |
30 | #include "config.h" | |
31 | #endif | |
8c4f1350 EB |
32 | |
33 | #define _XOPEN_SOURCE /* glibc2 needs this */ | |
34 | ||
0b72c435 | 35 | #include "gpx.h" |
8c4f1350 EB |
36 | #include "viking.h" |
37 | #include <expat.h> | |
8c00358d | 38 | #ifdef HAVE_STRING_H |
8c4f1350 | 39 | #include <string.h> |
8c00358d | 40 | #endif |
8904c540 | 41 | #include <glib.h> |
12ed2b58 RN |
42 | #include <glib/gstdio.h> |
43 | #include <glib/gi18n.h> | |
8c00358d | 44 | #ifdef HAVE_MATH_H |
8904c540 | 45 | #include <math.h> |
8c00358d | 46 | #endif |
e3449376 | 47 | #include <time.h> |
8c4f1350 | 48 | |
8c4f1350 EB |
49 | typedef enum { |
50 | tt_unknown = 0, | |
51 | ||
52 | tt_gpx, | |
6ba42f1e RN |
53 | tt_gpx_name, |
54 | tt_gpx_desc, | |
55 | tt_gpx_author, | |
56 | tt_gpx_time, | |
57 | tt_gpx_keywords, | |
8c4f1350 EB |
58 | |
59 | tt_wpt, | |
6b2f262e | 60 | tt_wpt_cmt, |
8c4f1350 EB |
61 | tt_wpt_desc, |
62 | tt_wpt_name, | |
63 | tt_wpt_ele, | |
f2ef466d RN |
64 | tt_wpt_sym, |
65 | tt_wpt_time, | |
415b0e21 | 66 | tt_wpt_url, |
8c4f1350 EB |
67 | tt_wpt_link, /* New in GPX 1.1 */ |
68 | ||
69 | tt_trk, | |
6b2f262e | 70 | tt_trk_cmt, |
8c4f1350 EB |
71 | tt_trk_desc, |
72 | tt_trk_name, | |
73 | ||
0d2b891f RN |
74 | tt_rte, |
75 | ||
8c4f1350 EB |
76 | tt_trk_trkseg, |
77 | tt_trk_trkseg_trkpt, | |
78 | tt_trk_trkseg_trkpt_ele, | |
79 | tt_trk_trkseg_trkpt_time, | |
b45865b4 | 80 | tt_trk_trkseg_trkpt_name, |
6ba42f1e | 81 | /* extended */ |
a2817d3c QT |
82 | tt_trk_trkseg_trkpt_course, |
83 | tt_trk_trkseg_trkpt_speed, | |
84 | tt_trk_trkseg_trkpt_fix, | |
85 | tt_trk_trkseg_trkpt_sat, | |
bf35388d | 86 | |
4a42b254 T |
87 | tt_trk_trkseg_trkpt_hdop, |
88 | tt_trk_trkseg_trkpt_vdop, | |
89 | tt_trk_trkseg_trkpt_pdop, | |
90 | ||
bf35388d EB |
91 | tt_waypoint, |
92 | tt_waypoint_coord, | |
93 | tt_waypoint_name, | |
8c4f1350 EB |
94 | } tag_type; |
95 | ||
96 | typedef struct tag_mapping { | |
97 | tag_type tag_type; /* enum from above for this tag */ | |
98 | const char *tag_name; /* xpath-ish tag name */ | |
99 | } tag_mapping; | |
100 | ||
0b72c435 OK |
101 | typedef struct { |
102 | GpxWritingOptions *options; | |
103 | FILE *file; | |
104 | } GpxWritingContext; | |
105 | ||
8c4f1350 | 106 | /* |
6ba42f1e | 107 | * xpath(ish) mappings between full tag paths and internal identifiers. |
8c4f1350 | 108 | * These appear in the order they appear in the GPX specification. |
6ba42f1e | 109 | * If it's not a tag we explicitly handle, it doesn't go here. |
8c4f1350 EB |
110 | */ |
111 | ||
112 | tag_mapping tag_path_map[] = { | |
8c4f1350 | 113 | |
6ba42f1e RN |
114 | { tt_gpx, "/gpx" }, |
115 | { tt_gpx_name, "/gpx/name" }, | |
116 | { tt_gpx_desc, "/gpx/desc" }, | |
117 | { tt_gpx_time, "/gpx/time" }, | |
118 | { tt_gpx_author, "/gpx/author" }, | |
119 | { tt_gpx_keywords, "/gpx/keywords" }, | |
120 | ||
121 | // GPX 1.1 variant - basic properties moved into metadata namespace | |
122 | { tt_gpx_name, "/gpx/metadata/name" }, | |
123 | { tt_gpx_desc, "/gpx/metadata/desc" }, | |
124 | { tt_gpx_time, "/gpx/metadata/time" }, | |
125 | { tt_gpx_author, "/gpx/metadata/author" }, | |
126 | { tt_gpx_keywords, "/gpx/metadata/keywords" }, | |
127 | ||
8c4f1350 | 128 | { tt_wpt, "/gpx/wpt" }, |
bf35388d EB |
129 | |
130 | { tt_waypoint, "/loc/waypoint" }, | |
131 | { tt_waypoint_coord, "/loc/waypoint/coord" }, | |
132 | { tt_waypoint_name, "/loc/waypoint/name" }, | |
133 | ||
8c4f1350 | 134 | { tt_wpt_ele, "/gpx/wpt/ele" }, |
f2ef466d | 135 | { tt_wpt_time, "/gpx/wpt/time" }, |
8c4f1350 | 136 | { tt_wpt_name, "/gpx/wpt/name" }, |
6b2f262e | 137 | { tt_wpt_cmt, "/gpx/wpt/cmt" }, |
8c4f1350 | 138 | { tt_wpt_desc, "/gpx/wpt/desc" }, |
42c2ac3e | 139 | { tt_wpt_sym, "/gpx/wpt/sym" }, |
08b251ec | 140 | { tt_wpt_sym, "/loc/waypoint/type" }, |
415b0e21 | 141 | { tt_wpt_url, "/gpx/wpt/url" }, |
8c4f1350 EB |
142 | { tt_wpt_link, "/gpx/wpt/link" }, /* GPX 1.1 */ |
143 | ||
144 | { tt_trk, "/gpx/trk" }, | |
145 | { tt_trk_name, "/gpx/trk/name" }, | |
6b2f262e | 146 | { tt_trk_cmt, "/gpx/trk/cmt" }, |
8c4f1350 EB |
147 | { tt_trk_desc, "/gpx/trk/desc" }, |
148 | { tt_trk_trkseg, "/gpx/trk/trkseg" }, | |
8c4f1350 EB |
149 | { tt_trk_trkseg_trkpt, "/gpx/trk/trkseg/trkpt" }, |
150 | { tt_trk_trkseg_trkpt_ele, "/gpx/trk/trkseg/trkpt/ele" }, | |
151 | { tt_trk_trkseg_trkpt_time, "/gpx/trk/trkseg/trkpt/time" }, | |
b45865b4 | 152 | { tt_trk_trkseg_trkpt_name, "/gpx/trk/trkseg/trkpt/name" }, |
6ba42f1e RN |
153 | /* extended */ |
154 | { tt_trk_trkseg_trkpt_course, "/gpx/trk/trkseg/trkpt/course" }, | |
a2817d3c QT |
155 | { tt_trk_trkseg_trkpt_speed, "/gpx/trk/trkseg/trkpt/speed" }, |
156 | { tt_trk_trkseg_trkpt_fix, "/gpx/trk/trkseg/trkpt/fix" }, | |
157 | { tt_trk_trkseg_trkpt_sat, "/gpx/trk/trkseg/trkpt/sat" }, | |
8c4f1350 | 158 | |
4a42b254 T |
159 | { tt_trk_trkseg_trkpt_hdop, "/gpx/trk/trkseg/trkpt/hdop" }, |
160 | { tt_trk_trkseg_trkpt_vdop, "/gpx/trk/trkseg/trkpt/vdop" }, | |
161 | { tt_trk_trkseg_trkpt_pdop, "/gpx/trk/trkseg/trkpt/pdop" }, | |
0d2b891f RN |
162 | |
163 | { tt_rte, "/gpx/rte" }, | |
164 | // NB Route reuses track point feature tags | |
165 | { tt_trk_name, "/gpx/rte/name" }, | |
166 | { tt_trk_cmt, "/gpx/rte/cmt" }, | |
167 | { tt_trk_desc, "/gpx/rte/desc" }, | |
168 | { tt_trk_trkseg_trkpt, "/gpx/rte/rtept" }, | |
b45865b4 | 169 | { tt_trk_trkseg_trkpt_name, "/gpx/rte/rtept/name" }, |
0d2b891f RN |
170 | { tt_trk_trkseg_trkpt_ele, "/gpx/rte/rtept/ele" }, |
171 | ||
8c4f1350 EB |
172 | {0} |
173 | }; | |
174 | ||
175 | static tag_type get_tag(const char *t) | |
176 | { | |
177 | tag_mapping *tm; | |
178 | for (tm = tag_path_map; tm->tag_type != 0; tm++) | |
179 | if (0 == strcmp(tm->tag_name, t)) | |
180 | return tm->tag_type; | |
181 | return tt_unknown; | |
182 | } | |
183 | ||
184 | /******************************************/ | |
185 | ||
186 | tag_type current_tag = tt_unknown; | |
187 | GString *xpath = NULL; | |
188 | GString *c_cdata = NULL; | |
189 | ||
190 | /* current ("c_") objects */ | |
191 | VikTrackpoint *c_tp = NULL; | |
192 | VikWaypoint *c_wp = NULL; | |
193 | VikTrack *c_tr = NULL; | |
6ba42f1e | 194 | VikTRWMetadata *c_md = NULL; |
8c4f1350 EB |
195 | |
196 | gchar *c_wp_name = NULL; | |
197 | gchar *c_tr_name = NULL; | |
198 | ||
199 | /* temporary things so we don't have to create them lots of times */ | |
200 | const gchar *c_slat, *c_slon; | |
201 | struct LatLon c_ll; | |
202 | ||
203 | /* specialty flags / etc */ | |
204 | gboolean f_tr_newseg; | |
205 | guint unnamed_waypoints = 0; | |
206 | guint unnamed_tracks = 0; | |
43e2df3e | 207 | guint unnamed_routes = 0; |
8c4f1350 EB |
208 | |
209 | static const char *get_attr ( const char **attr, const char *key ) | |
210 | { | |
211 | while ( *attr ) { | |
212 | if ( strcmp(*attr,key) == 0 ) | |
213 | return *(attr + 1); | |
214 | attr += 2; | |
215 | } | |
216 | return NULL; | |
217 | } | |
218 | ||
219 | static gboolean set_c_ll ( const char **attr ) | |
220 | { | |
221 | if ( (c_slat = get_attr ( attr, "lat" )) && (c_slon = get_attr ( attr, "lon" )) ) { | |
d1cd12c0 T |
222 | c_ll.lat = g_ascii_strtod(c_slat, NULL); |
223 | c_ll.lon = g_ascii_strtod(c_slon, NULL); | |
8c4f1350 EB |
224 | return TRUE; |
225 | } | |
226 | return FALSE; | |
227 | } | |
228 | ||
229 | static void gpx_start(VikTrwLayer *vtl, const char *el, const char **attr) | |
230 | { | |
bf35388d EB |
231 | static const gchar *tmp; |
232 | ||
8c4f1350 EB |
233 | g_string_append_c ( xpath, '/' ); |
234 | g_string_append ( xpath, el ); | |
235 | current_tag = get_tag ( xpath->str ); | |
236 | ||
237 | switch ( current_tag ) { | |
238 | ||
6ba42f1e RN |
239 | case tt_gpx: |
240 | c_md = vik_trw_metadata_new(); | |
241 | break; | |
242 | ||
8c4f1350 EB |
243 | case tt_wpt: |
244 | if ( set_c_ll( attr ) ) { | |
245 | c_wp = vik_waypoint_new (); | |
0b9f279d RN |
246 | c_wp->visible = TRUE; |
247 | if ( get_attr ( attr, "hidden" ) ) | |
248 | c_wp->visible = FALSE; | |
8c4f1350 EB |
249 | |
250 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
251 | } | |
252 | break; | |
253 | ||
254 | case tt_trk: | |
0d2b891f | 255 | case tt_rte: |
8c4f1350 | 256 | c_tr = vik_track_new (); |
387ff7ac | 257 | vik_track_set_defaults ( c_tr ); |
0d2b891f | 258 | c_tr->is_route = (current_tag == tt_rte) ? TRUE : FALSE; |
0b9f279d RN |
259 | c_tr->visible = TRUE; |
260 | if ( get_attr ( attr, "hidden" ) ) | |
261 | c_tr->visible = FALSE; | |
8c4f1350 EB |
262 | break; |
263 | ||
264 | case tt_trk_trkseg: | |
265 | f_tr_newseg = TRUE; | |
266 | break; | |
267 | ||
268 | case tt_trk_trkseg_trkpt: | |
269 | if ( set_c_ll( attr ) ) { | |
270 | c_tp = vik_trackpoint_new (); | |
8c4f1350 EB |
271 | vik_coord_load_from_latlon ( &(c_tp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); |
272 | if ( f_tr_newseg ) { | |
273 | c_tp->newsegment = TRUE; | |
274 | f_tr_newseg = FALSE; | |
275 | } | |
276 | c_tr->trackpoints = g_list_append ( c_tr->trackpoints, c_tp ); | |
277 | } | |
278 | break; | |
279 | ||
6ba42f1e RN |
280 | case tt_gpx_name: |
281 | case tt_gpx_author: | |
282 | case tt_gpx_desc: | |
283 | case tt_gpx_keywords: | |
284 | case tt_gpx_time: | |
b45865b4 | 285 | case tt_trk_trkseg_trkpt_name: |
8c4f1350 EB |
286 | case tt_trk_trkseg_trkpt_ele: |
287 | case tt_trk_trkseg_trkpt_time: | |
6b2f262e | 288 | case tt_wpt_cmt: |
8c4f1350 EB |
289 | case tt_wpt_desc: |
290 | case tt_wpt_name: | |
291 | case tt_wpt_ele: | |
f2ef466d | 292 | case tt_wpt_time: |
415b0e21 | 293 | case tt_wpt_url: |
8c4f1350 | 294 | case tt_wpt_link: |
6b2f262e | 295 | case tt_trk_cmt: |
8c4f1350 EB |
296 | case tt_trk_desc: |
297 | case tt_trk_name: | |
298 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer */ | |
bf35388d | 299 | break; |
8c4f1350 | 300 | |
bf35388d EB |
301 | case tt_waypoint: |
302 | c_wp = vik_waypoint_new (); | |
bf35388d EB |
303 | c_wp->visible = TRUE; |
304 | break; | |
305 | ||
306 | case tt_waypoint_coord: | |
307 | if ( set_c_ll( attr ) ) | |
308 | vik_coord_load_from_latlon ( &(c_wp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll ); | |
309 | break; | |
310 | ||
311 | case tt_waypoint_name: | |
312 | if ( ( tmp = get_attr(attr, "id") ) ) { | |
313 | if ( c_wp_name ) | |
314 | g_free ( c_wp_name ); | |
315 | c_wp_name = g_strdup ( tmp ); | |
316 | } | |
317 | g_string_erase ( c_cdata, 0, -1 ); /* clear the cdata buffer for description */ | |
318 | break; | |
319 | ||
8c4f1350 EB |
320 | default: break; |
321 | } | |
322 | } | |
323 | ||
324 | static void gpx_end(VikTrwLayer *vtl, const char *el) | |
325 | { | |
dd81e762 | 326 | static GTimeVal tp_time; |
f2ef466d | 327 | static GTimeVal wp_time; |
dd81e762 | 328 | |
8c4f1350 EB |
329 | g_string_truncate ( xpath, xpath->len - strlen(el) - 1 ); |
330 | ||
331 | switch ( current_tag ) { | |
332 | ||
6ba42f1e RN |
333 | case tt_gpx: |
334 | vik_trw_layer_set_metadata ( vtl, c_md ); | |
335 | c_md = NULL; | |
336 | break; | |
337 | ||
338 | case tt_gpx_name: | |
339 | vik_layer_rename ( VIK_LAYER(vtl), c_cdata->str ); | |
340 | g_string_erase ( c_cdata, 0, -1 ); | |
341 | break; | |
342 | ||
343 | case tt_gpx_author: | |
344 | if ( c_md->author ) | |
e57fae85 | 345 | g_free ( c_md->author ); |
6ba42f1e RN |
346 | c_md->author = g_strdup ( c_cdata->str ); |
347 | g_string_erase ( c_cdata, 0, -1 ); | |
348 | break; | |
349 | ||
350 | case tt_gpx_desc: | |
351 | if ( c_md->description ) | |
352 | g_free ( c_md->description ); | |
353 | c_md->description = g_strdup ( c_cdata->str ); | |
354 | g_string_erase ( c_cdata, 0, -1 ); | |
355 | break; | |
356 | ||
357 | case tt_gpx_keywords: | |
358 | if ( c_md->keywords ) | |
359 | g_free ( c_md->keywords ); | |
360 | c_md->keywords = g_strdup ( c_cdata->str ); | |
361 | g_string_erase ( c_cdata, 0, -1 ); | |
362 | break; | |
363 | ||
364 | case tt_gpx_time: | |
365 | if ( c_md->timestamp ) | |
366 | g_free ( c_md->timestamp ); | |
367 | c_md->timestamp = g_strdup ( c_cdata->str ); | |
368 | g_string_erase ( c_cdata, 0, -1 ); | |
369 | break; | |
370 | ||
bf35388d | 371 | case tt_waypoint: |
8c4f1350 EB |
372 | case tt_wpt: |
373 | if ( ! c_wp_name ) | |
43e2df3e | 374 | c_wp_name = g_strdup_printf("VIKING_WP%04d", unnamed_waypoints++); |
805d282e EB |
375 | vik_trw_layer_filein_add_waypoint ( vtl, c_wp_name, c_wp ); |
376 | g_free ( c_wp_name ); | |
8c4f1350 EB |
377 | c_wp = NULL; |
378 | c_wp_name = NULL; | |
379 | break; | |
380 | ||
381 | case tt_trk: | |
43e2df3e RN |
382 | if ( ! c_tr_name ) |
383 | c_tr_name = g_strdup_printf("VIKING_TR%03d", unnamed_tracks++); | |
384 | // Delibrate fall through | |
0d2b891f | 385 | case tt_rte: |
8c4f1350 | 386 | if ( ! c_tr_name ) |
43e2df3e | 387 | c_tr_name = g_strdup_printf("VIKING_RT%03d", unnamed_routes++); |
805d282e EB |
388 | vik_trw_layer_filein_add_track ( vtl, c_tr_name, c_tr ); |
389 | g_free ( c_tr_name ); | |
8c4f1350 EB |
390 | c_tr = NULL; |
391 | c_tr_name = NULL; | |
392 | break; | |
393 | ||
394 | case tt_wpt_name: | |
395 | if ( c_wp_name ) | |
396 | g_free ( c_wp_name ); | |
397 | c_wp_name = g_strdup ( c_cdata->str ); | |
398 | g_string_erase ( c_cdata, 0, -1 ); | |
399 | break; | |
400 | ||
401 | case tt_trk_name: | |
402 | if ( c_tr_name ) | |
403 | g_free ( c_tr_name ); | |
404 | c_tr_name = g_strdup ( c_cdata->str ); | |
405 | g_string_erase ( c_cdata, 0, -1 ); | |
406 | break; | |
407 | ||
408 | case tt_wpt_ele: | |
d1cd12c0 | 409 | c_wp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); |
8c4f1350 EB |
410 | g_string_erase ( c_cdata, 0, -1 ); |
411 | break; | |
412 | ||
413 | case tt_trk_trkseg_trkpt_ele: | |
d1cd12c0 | 414 | c_tp->altitude = g_ascii_strtod ( c_cdata->str, NULL ); |
8c4f1350 EB |
415 | g_string_erase ( c_cdata, 0, -1 ); |
416 | break; | |
417 | ||
bf35388d | 418 | case tt_waypoint_name: /* .loc name is really description. */ |
8c4f1350 | 419 | case tt_wpt_desc: |
6b2f262e RN |
420 | vik_waypoint_set_description ( c_wp, c_cdata->str ); |
421 | g_string_erase ( c_cdata, 0, -1 ); | |
422 | break; | |
423 | ||
424 | case tt_wpt_cmt: | |
8c4f1350 EB |
425 | vik_waypoint_set_comment ( c_wp, c_cdata->str ); |
426 | g_string_erase ( c_cdata, 0, -1 ); | |
427 | break; | |
428 | ||
415b0e21 RN |
429 | case tt_wpt_url: |
430 | vik_waypoint_set_url ( c_wp, c_cdata->str ); | |
431 | g_string_erase ( c_cdata, 0, -1 ); | |
432 | break; | |
433 | ||
8c4f1350 EB |
434 | case tt_wpt_link: |
435 | vik_waypoint_set_image ( c_wp, c_cdata->str ); | |
436 | g_string_erase ( c_cdata, 0, -1 ); | |
437 | break; | |
438 | ||
ea3933fc | 439 | case tt_wpt_sym: { |
fffcc269 | 440 | vik_waypoint_set_symbol ( c_wp, c_cdata->str ); |
42c2ac3e AF |
441 | g_string_erase ( c_cdata, 0, -1 ); |
442 | break; | |
ea3933fc | 443 | } |
42c2ac3e | 444 | |
8c4f1350 | 445 | case tt_trk_desc: |
6b2f262e RN |
446 | vik_track_set_description ( c_tr, c_cdata->str ); |
447 | g_string_erase ( c_cdata, 0, -1 ); | |
448 | break; | |
449 | ||
450 | case tt_trk_cmt: | |
8c4f1350 EB |
451 | vik_track_set_comment ( c_tr, c_cdata->str ); |
452 | g_string_erase ( c_cdata, 0, -1 ); | |
453 | break; | |
454 | ||
f2ef466d RN |
455 | case tt_wpt_time: |
456 | if ( g_time_val_from_iso8601(c_cdata->str, &wp_time) ) { | |
457 | c_wp->timestamp = wp_time.tv_sec; | |
458 | c_wp->has_timestamp = TRUE; | |
459 | } | |
460 | g_string_erase ( c_cdata, 0, -1 ); | |
461 | break; | |
462 | ||
b45865b4 RN |
463 | case tt_trk_trkseg_trkpt_name: |
464 | vik_trackpoint_set_name ( c_tp, c_cdata->str ); | |
465 | g_string_erase ( c_cdata, 0, -1 ); | |
466 | break; | |
467 | ||
8c4f1350 | 468 | case tt_trk_trkseg_trkpt_time: |
dd81e762 GB |
469 | if ( g_time_val_from_iso8601(c_cdata->str, &tp_time) ) { |
470 | c_tp->timestamp = tp_time.tv_sec; | |
8c4f1350 EB |
471 | c_tp->has_timestamp = TRUE; |
472 | } | |
473 | g_string_erase ( c_cdata, 0, -1 ); | |
bf35388d | 474 | break; |
8c4f1350 | 475 | |
a2817d3c | 476 | case tt_trk_trkseg_trkpt_course: |
d1cd12c0 | 477 | c_tp->course = g_ascii_strtod ( c_cdata->str, NULL ); |
a2817d3c QT |
478 | g_string_erase ( c_cdata, 0, -1 ); |
479 | break; | |
480 | ||
481 | case tt_trk_trkseg_trkpt_speed: | |
d1cd12c0 | 482 | c_tp->speed = g_ascii_strtod ( c_cdata->str, NULL ); |
a2817d3c QT |
483 | g_string_erase ( c_cdata, 0, -1 ); |
484 | break; | |
485 | ||
486 | case tt_trk_trkseg_trkpt_fix: | |
a2817d3c QT |
487 | if (!strcmp("2d", c_cdata->str)) |
488 | c_tp->fix_mode = VIK_GPS_MODE_2D; | |
489 | else if (!strcmp("3d", c_cdata->str)) | |
490 | c_tp->fix_mode = VIK_GPS_MODE_3D; | |
e29aad19 RN |
491 | else if (!strcmp("dgps", c_cdata->str)) |
492 | c_tp->fix_mode = VIK_GPS_MODE_DGPS; | |
493 | else if (!strcmp("pps", c_cdata->str)) | |
494 | c_tp->fix_mode = VIK_GPS_MODE_PPS; | |
495 | else | |
a2817d3c QT |
496 | c_tp->fix_mode = VIK_GPS_MODE_NOT_SEEN; |
497 | g_string_erase ( c_cdata, 0, -1 ); | |
498 | break; | |
499 | ||
500 | case tt_trk_trkseg_trkpt_sat: | |
a2817d3c QT |
501 | c_tp->nsats = atoi ( c_cdata->str ); |
502 | g_string_erase ( c_cdata, 0, -1 ); | |
503 | break; | |
504 | ||
4a42b254 | 505 | case tt_trk_trkseg_trkpt_hdop: |
4a42b254 T |
506 | c_tp->hdop = g_strtod ( c_cdata->str, NULL ); |
507 | g_string_erase ( c_cdata, 0, -1 ); | |
508 | break; | |
509 | ||
510 | case tt_trk_trkseg_trkpt_vdop: | |
4a42b254 T |
511 | c_tp->vdop = g_strtod ( c_cdata->str, NULL ); |
512 | g_string_erase ( c_cdata, 0, -1 ); | |
513 | break; | |
514 | ||
515 | case tt_trk_trkseg_trkpt_pdop: | |
4a42b254 T |
516 | c_tp->pdop = g_strtod ( c_cdata->str, NULL ); |
517 | g_string_erase ( c_cdata, 0, -1 ); | |
518 | break; | |
519 | ||
8c4f1350 EB |
520 | default: break; |
521 | } | |
522 | ||
523 | current_tag = get_tag ( xpath->str ); | |
524 | } | |
525 | ||
526 | static void gpx_cdata(void *dta, const XML_Char *s, int len) | |
527 | { | |
528 | switch ( current_tag ) { | |
6ba42f1e RN |
529 | case tt_gpx_name: |
530 | case tt_gpx_author: | |
531 | case tt_gpx_desc: | |
532 | case tt_gpx_keywords: | |
533 | case tt_gpx_time: | |
8c4f1350 EB |
534 | case tt_wpt_name: |
535 | case tt_trk_name: | |
536 | case tt_wpt_ele: | |
537 | case tt_trk_trkseg_trkpt_ele: | |
6b2f262e | 538 | case tt_wpt_cmt: |
8c4f1350 | 539 | case tt_wpt_desc: |
42c2ac3e | 540 | case tt_wpt_sym: |
415b0e21 | 541 | case tt_wpt_url: |
8c4f1350 | 542 | case tt_wpt_link: |
6b2f262e | 543 | case tt_trk_cmt: |
8c4f1350 EB |
544 | case tt_trk_desc: |
545 | case tt_trk_trkseg_trkpt_time: | |
f2ef466d | 546 | case tt_wpt_time: |
b45865b4 | 547 | case tt_trk_trkseg_trkpt_name: |
a2817d3c QT |
548 | case tt_trk_trkseg_trkpt_course: |
549 | case tt_trk_trkseg_trkpt_speed: | |
550 | case tt_trk_trkseg_trkpt_fix: | |
551 | case tt_trk_trkseg_trkpt_sat: | |
4a42b254 T |
552 | case tt_trk_trkseg_trkpt_hdop: |
553 | case tt_trk_trkseg_trkpt_vdop: | |
554 | case tt_trk_trkseg_trkpt_pdop: | |
bf35388d | 555 | case tt_waypoint_name: /* .loc name is really description. */ |
8c4f1350 EB |
556 | g_string_append_len ( c_cdata, s, len ); |
557 | break; | |
558 | ||
559 | default: break; /* ignore cdata from other things */ | |
560 | } | |
561 | } | |
562 | ||
563 | // make like a "stack" of tag names | |
564 | // like gpspoint's separated like /gpx/wpt/whatever | |
565 | ||
efe9a9c3 | 566 | gboolean a_gpx_read_file( VikTrwLayer *vtl, FILE *f ) { |
8c4f1350 EB |
567 | XML_Parser parser = XML_ParserCreate(NULL); |
568 | int done=0, len; | |
efe9a9c3 | 569 | enum XML_Status status = XML_STATUS_ERROR; |
8c4f1350 EB |
570 | |
571 | XML_SetElementHandler(parser, (XML_StartElementHandler) gpx_start, (XML_EndElementHandler) gpx_end); | |
572 | XML_SetUserData(parser, vtl); /* in the future we could remove all global variables */ | |
573 | XML_SetCharacterDataHandler(parser, (XML_CharacterDataHandler) gpx_cdata); | |
574 | ||
575 | gchar buf[4096]; | |
576 | ||
bf35388d | 577 | g_assert ( f != NULL && vtl != NULL ); |
8c4f1350 EB |
578 | |
579 | xpath = g_string_new ( "" ); | |
580 | c_cdata = g_string_new ( "" ); | |
581 | ||
43e2df3e RN |
582 | unnamed_waypoints = 1; |
583 | unnamed_tracks = 1; | |
584 | unnamed_routes = 1; | |
8c4f1350 EB |
585 | |
586 | while (!done) { | |
587 | len = fread(buf, 1, sizeof(buf)-7, f); | |
588 | done = feof(f) || !len; | |
efe9a9c3 | 589 | status = XML_Parse(parser, buf, len, done); |
8c4f1350 EB |
590 | } |
591 | ||
6278ccc6 | 592 | XML_ParserFree (parser); |
8c4f1350 EB |
593 | g_string_free ( xpath, TRUE ); |
594 | g_string_free ( c_cdata, TRUE ); | |
efe9a9c3 GB |
595 | |
596 | return status != XML_STATUS_ERROR; | |
8c4f1350 | 597 | } |
561e6ad0 EB |
598 | |
599 | /**** entitize from GPSBabel ****/ | |
600 | typedef struct { | |
601 | const char * text; | |
602 | const char * entity; | |
603 | int not_html; | |
604 | } entity_types; | |
605 | ||
606 | static | |
607 | entity_types stdentities[] = { | |
608 | { "&", "&", 0 }, | |
609 | { "'", "'", 1 }, | |
610 | { "<", "<", 0 }, | |
611 | { ">", ">", 0 }, | |
612 | { "\"", """, 0 }, | |
613 | { NULL, NULL, 0 } | |
614 | }; | |
615 | ||
616 | void utf8_to_int( const char *cp, int *bytes, int *value ) | |
617 | { | |
618 | if ( (*cp & 0xe0) == 0xc0 ) { | |
619 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
620 | *bytes = 2; | |
621 | *value = ((*cp & 0x1f) << 6) | | |
622 | (*(cp+1) & 0x3f); | |
623 | } | |
624 | else if ( (*cp & 0xf0) == 0xe0 ) { | |
625 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
626 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
627 | *bytes = 3; | |
628 | *value = ((*cp & 0x0f) << 12) | | |
629 | ((*(cp+1) & 0x3f) << 6) | | |
630 | (*(cp+2) & 0x3f); | |
631 | } | |
632 | else if ( (*cp & 0xf8) == 0xf0 ) { | |
633 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
634 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
635 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
636 | *bytes = 4; | |
637 | *value = ((*cp & 0x07) << 18) | | |
638 | ((*(cp+1) & 0x3f) << 12) | | |
639 | ((*(cp+2) & 0x3f) << 6) | | |
640 | (*(cp+3) & 0x3f); | |
641 | } | |
642 | else if ( (*cp & 0xfc) == 0xf8 ) { | |
643 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
644 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
645 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
646 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
647 | *bytes = 5; | |
648 | *value = ((*cp & 0x03) << 24) | | |
649 | ((*(cp+1) & 0x3f) << 18) | | |
650 | ((*(cp+2) & 0x3f) << 12) | | |
651 | ((*(cp+3) & 0x3f) << 6) | | |
652 | (*(cp+4) & 0x3f); | |
653 | } | |
654 | else if ( (*cp & 0xfe) == 0xfc ) { | |
655 | if ( (*(cp+1) & 0xc0) != 0x80 ) goto dodefault; | |
656 | if ( (*(cp+2) & 0xc0) != 0x80 ) goto dodefault; | |
657 | if ( (*(cp+3) & 0xc0) != 0x80 ) goto dodefault; | |
658 | if ( (*(cp+4) & 0xc0) != 0x80 ) goto dodefault; | |
659 | if ( (*(cp+5) & 0xc0) != 0x80 ) goto dodefault; | |
660 | *bytes = 6; | |
661 | *value = ((*cp & 0x01) << 30) | | |
662 | ((*(cp+1) & 0x3f) << 24) | | |
663 | ((*(cp+2) & 0x3f) << 18) | | |
664 | ((*(cp+3) & 0x3f) << 12) | | |
665 | ((*(cp+4) & 0x3f) << 6) | | |
666 | (*(cp+5) & 0x3f); | |
667 | } | |
668 | else { | |
669 | dodefault: | |
670 | *bytes = 1; | |
671 | *value = (unsigned char)*cp; | |
672 | } | |
673 | } | |
674 | ||
675 | static | |
676 | char * | |
677 | entitize(const char * str) | |
678 | { | |
679 | int elen, ecount, nsecount; | |
680 | entity_types *ep; | |
681 | const char * cp; | |
682 | char * p, * tmp, * xstr; | |
683 | ||
684 | char tmpsub[20]; | |
685 | int bytes = 0; | |
686 | int value = 0; | |
687 | ep = stdentities; | |
688 | elen = ecount = nsecount = 0; | |
689 | ||
690 | /* figure # of entity replacements and additional size. */ | |
691 | while (ep->text) { | |
692 | cp = str; | |
693 | while ((cp = strstr(cp, ep->text)) != NULL) { | |
694 | elen += strlen(ep->entity) - strlen(ep->text); | |
695 | ecount++; | |
696 | cp += strlen(ep->text); | |
697 | } | |
698 | ep++; | |
699 | } | |
700 | ||
701 | /* figure the same for other than standard entities (i.e. anything | |
702 | * that isn't in the range U+0000 to U+007F */ | |
703 | for ( cp = str; *cp; cp++ ) { | |
704 | if ( *cp & 0x80 ) { | |
705 | ||
706 | utf8_to_int( cp, &bytes, &value ); | |
707 | cp += bytes-1; | |
708 | elen += sprintf( tmpsub, "&#x%x;", value ) - bytes; | |
709 | nsecount++; | |
710 | } | |
711 | } | |
712 | ||
713 | /* enough space for the whole string plus entity replacements, if any */ | |
714 | tmp = g_malloc((strlen(str) + elen + 1)); | |
715 | strcpy(tmp, str); | |
716 | ||
717 | /* no entity replacements */ | |
718 | if (ecount == 0 && nsecount == 0) | |
719 | return (tmp); | |
720 | ||
721 | if ( ecount != 0 ) { | |
722 | for (ep = stdentities; ep->text; ep++) { | |
723 | p = tmp; | |
724 | while ((p = strstr(p, ep->text)) != NULL) { | |
725 | elen = strlen(ep->entity); | |
726 | ||
727 | xstr = g_strdup(p + strlen(ep->text)); | |
728 | ||
729 | strcpy(p, ep->entity); | |
730 | strcpy(p + elen, xstr); | |
731 | ||
732 | g_free(xstr); | |
733 | ||
734 | p += elen; | |
735 | } | |
736 | } | |
737 | } | |
738 | ||
739 | if ( nsecount != 0 ) { | |
740 | p = tmp; | |
741 | while (*p) { | |
742 | if ( *p & 0x80 ) { | |
743 | utf8_to_int( p, &bytes, &value ); | |
744 | if ( p[bytes] ) { | |
745 | xstr = g_strdup( p + bytes ); | |
746 | } | |
747 | else { | |
748 | xstr = NULL; | |
749 | } | |
750 | sprintf( p, "&#x%x;", value ); | |
751 | p = p+strlen(p); | |
752 | if ( xstr ) { | |
753 | strcpy( p, xstr ); | |
754 | g_free(xstr); | |
755 | } | |
756 | } | |
757 | else { | |
758 | p++; | |
759 | } | |
760 | } | |
761 | } | |
762 | return (tmp); | |
763 | } | |
764 | /**** end GPSBabel code ****/ | |
765 | ||
766 | /* export GPX */ | |
8904c540 | 767 | |
c9570f86 | 768 | static void gpx_write_waypoint ( VikWaypoint *wp, GpxWritingContext *context ) |
561e6ad0 | 769 | { |
208d2084 RN |
770 | // Don't write invisible waypoints when specified |
771 | if (context->options && !context->options->hidden && !wp->visible) | |
772 | return; | |
773 | ||
0b72c435 | 774 | FILE *f = context->file; |
561e6ad0 | 775 | static struct LatLon ll; |
8904c540 | 776 | gchar *s_lat,*s_lon; |
561e6ad0 EB |
777 | gchar *tmp; |
778 | vik_coord_to_latlon ( &(wp->coord), &ll ); | |
161aa492 EB |
779 | s_lat = a_coords_dtostr( ll.lat ); |
780 | s_lon = a_coords_dtostr( ll.lon ); | |
208d2084 RN |
781 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' |
782 | // luckily most other GPX processing software ignores things they don't understand | |
8904c540 GB |
783 | fprintf ( f, "<wpt lat=\"%s\" lon=\"%s\"%s>\n", |
784 | s_lat, s_lon, wp->visible ? "" : " hidden=\"hidden\"" ); | |
785 | g_free ( s_lat ); | |
786 | g_free ( s_lon ); | |
561e6ad0 | 787 | |
c9570f86 RN |
788 | // Sanity clause |
789 | if ( wp->name ) | |
790 | tmp = entitize ( wp->name ); | |
791 | else | |
792 | tmp = g_strdup ("waypoint"); | |
793 | ||
561e6ad0 EB |
794 | fprintf ( f, " <name>%s</name>\n", tmp ); |
795 | g_free ( tmp); | |
796 | ||
797 | if ( wp->altitude != VIK_DEFAULT_ALTITUDE ) | |
8904c540 | 798 | { |
161aa492 | 799 | tmp = a_coords_dtostr ( wp->altitude ); |
8904c540 GB |
800 | fprintf ( f, " <ele>%s</ele>\n", tmp ); |
801 | g_free ( tmp ); | |
802 | } | |
f2ef466d RN |
803 | |
804 | if ( wp->has_timestamp ) { | |
805 | GTimeVal timestamp; | |
806 | timestamp.tv_sec = wp->timestamp; | |
807 | timestamp.tv_usec = 0; | |
808 | ||
809 | gchar *time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
810 | if ( time_iso8601 != NULL ) | |
811 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
812 | g_free ( time_iso8601 ); | |
813 | } | |
814 | ||
561e6ad0 EB |
815 | if ( wp->comment ) |
816 | { | |
817 | tmp = entitize(wp->comment); | |
6b2f262e RN |
818 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); |
819 | g_free ( tmp ); | |
820 | } | |
821 | if ( wp->description ) | |
822 | { | |
823 | tmp = entitize(wp->description); | |
561e6ad0 EB |
824 | fprintf ( f, " <desc>%s</desc>\n", tmp ); |
825 | g_free ( tmp ); | |
826 | } | |
415b0e21 RN |
827 | if ( wp->url ) |
828 | { | |
829 | tmp = entitize(wp->url); | |
830 | fprintf ( f, " <url>%s</url>\n", tmp ); | |
831 | g_free ( tmp ); | |
832 | } | |
561e6ad0 EB |
833 | if ( wp->image ) |
834 | { | |
835 | tmp = entitize(wp->image); | |
836 | fprintf ( f, " <link>%s</link>\n", tmp ); | |
837 | g_free ( tmp ); | |
838 | } | |
42c2ac3e AF |
839 | if ( wp->symbol ) |
840 | { | |
841 | tmp = entitize(wp->symbol); | |
72f067ad RN |
842 | if ( a_vik_gpx_export_wpt_sym_name ( ) ) { |
843 | // Lowercase the symbol name | |
844 | gchar *tmp2 = g_utf8_strdown ( tmp, -1 ); | |
845 | fprintf ( f, " <sym>%s</sym>\n", tmp2 ); | |
846 | g_free ( tmp2 ); | |
847 | } | |
848 | else | |
849 | fprintf ( f, " <sym>%s</sym>\n", tmp); | |
42c2ac3e AF |
850 | g_free ( tmp ); |
851 | } | |
852 | ||
561e6ad0 EB |
853 | fprintf ( f, "</wpt>\n" ); |
854 | } | |
855 | ||
0b72c435 | 856 | static void gpx_write_trackpoint ( VikTrackpoint *tp, GpxWritingContext *context ) |
561e6ad0 | 857 | { |
0b72c435 | 858 | FILE *f = context->file; |
561e6ad0 | 859 | static struct LatLon ll; |
4a42b254 | 860 | gchar *s_lat,*s_lon, *s_alt, *s_dop; |
dd81e762 | 861 | gchar *time_iso8601; |
561e6ad0 EB |
862 | vik_coord_to_latlon ( &(tp->coord), &ll ); |
863 | ||
0d2b891f RN |
864 | // No such thing as a rteseg! So make sure we don't put them in |
865 | if ( context->options && !context->options->is_route && tp->newsegment ) | |
561e6ad0 EB |
866 | fprintf ( f, " </trkseg>\n <trkseg>\n" ); |
867 | ||
161aa492 EB |
868 | s_lat = a_coords_dtostr( ll.lat ); |
869 | s_lon = a_coords_dtostr( ll.lon ); | |
0d2b891f | 870 | fprintf ( f, " <%spt lat=\"%s\" lon=\"%s\">\n", (context->options && context->options->is_route) ? "rte" : "trk", s_lat, s_lon ); |
0b72c435 OK |
871 | g_free ( s_lat ); s_lat = NULL; |
872 | g_free ( s_lon ); s_lon = NULL; | |
561e6ad0 | 873 | |
b45865b4 RN |
874 | if (tp->name) { |
875 | gchar *s_name = entitize(tp->name); | |
876 | fprintf ( f, " <name>%s</name>\n", s_name ); | |
877 | g_free(s_name); | |
878 | } | |
879 | ||
0b72c435 | 880 | s_alt = NULL; |
561e6ad0 | 881 | if ( tp->altitude != VIK_DEFAULT_ALTITUDE ) |
8904c540 | 882 | { |
161aa492 | 883 | s_alt = a_coords_dtostr ( tp->altitude ); |
8904c540 | 884 | } |
0b72c435 | 885 | else if ( context->options != NULL && context->options->force_ele ) |
36179a2e OK |
886 | { |
887 | s_alt = a_coords_dtostr ( 0 ); | |
888 | } | |
0b72c435 OK |
889 | if (s_alt != NULL) |
890 | fprintf ( f, " <ele>%s</ele>\n", s_alt ); | |
891 | g_free ( s_alt ); s_alt = NULL; | |
36179a2e | 892 | |
dd81e762 | 893 | time_iso8601 = NULL; |
561e6ad0 | 894 | if ( tp->has_timestamp ) { |
dd81e762 GB |
895 | GTimeVal timestamp; |
896 | timestamp.tv_sec = tp->timestamp; | |
61f37ac9 | 897 | timestamp.tv_usec = 0; |
dd81e762 GB |
898 | |
899 | time_iso8601 = g_time_val_to_iso8601 ( ×tamp ); | |
561e6ad0 | 900 | } |
0b72c435 | 901 | else if ( context->options != NULL && context->options->force_time ) |
36179a2e | 902 | { |
dd81e762 GB |
903 | GTimeVal current; |
904 | g_get_current_time ( ¤t ); | |
36179a2e | 905 | |
dd81e762 | 906 | time_iso8601 = g_time_val_to_iso8601 ( ¤t ); |
36179a2e | 907 | } |
dd81e762 GB |
908 | if ( time_iso8601 != NULL ) |
909 | fprintf ( f, " <time>%s</time>\n", time_iso8601 ); | |
910 | g_free(time_iso8601); | |
911 | time_iso8601 = NULL; | |
36179a2e | 912 | |
ad54cd32 T |
913 | if (!isnan(tp->course)) { |
914 | gchar *s_course = a_coords_dtostr(tp->course); | |
915 | fprintf ( f, " <course>%s</course>\n", s_course ); | |
916 | g_free(s_course); | |
a2817d3c | 917 | } |
ad54cd32 T |
918 | if (!isnan(tp->speed)) { |
919 | gchar *s_speed = a_coords_dtostr(tp->speed); | |
920 | fprintf ( f, " <speed>%s</speed>\n", s_speed ); | |
921 | g_free(s_speed); | |
922 | } | |
923 | if (tp->fix_mode == VIK_GPS_MODE_2D) | |
924 | fprintf ( f, " <fix>2d</fix>\n"); | |
925 | if (tp->fix_mode == VIK_GPS_MODE_3D) | |
926 | fprintf ( f, " <fix>3d</fix>\n"); | |
e29aad19 RN |
927 | if (tp->fix_mode == VIK_GPS_MODE_DGPS) |
928 | fprintf ( f, " <fix>dgps</fix>\n"); | |
929 | if (tp->fix_mode == VIK_GPS_MODE_PPS) | |
930 | fprintf ( f, " <fix>pps</fix>\n"); | |
ad54cd32 T |
931 | if (tp->nsats > 0) |
932 | fprintf ( f, " <sat>%d</sat>\n", tp->nsats ); | |
a2817d3c | 933 | |
4a42b254 T |
934 | s_dop = NULL; |
935 | if ( tp->hdop != VIK_DEFAULT_DOP ) | |
936 | { | |
937 | s_dop = a_coords_dtostr ( tp->hdop ); | |
938 | } | |
939 | if (s_dop != NULL) | |
940 | fprintf ( f, " <hdop>%s</hdop>\n", s_dop ); | |
941 | g_free ( s_dop ); s_dop = NULL; | |
942 | ||
943 | if ( tp->vdop != VIK_DEFAULT_DOP ) | |
944 | { | |
945 | s_dop = a_coords_dtostr ( tp->vdop ); | |
946 | } | |
947 | if (s_dop != NULL) | |
948 | fprintf ( f, " <vdop>%s</vdop>\n", s_dop ); | |
949 | g_free ( s_dop ); s_dop = NULL; | |
950 | ||
951 | if ( tp->pdop != VIK_DEFAULT_DOP ) | |
952 | { | |
953 | s_dop = a_coords_dtostr ( tp->pdop ); | |
954 | } | |
955 | if (s_dop != NULL) | |
956 | fprintf ( f, " <pdop>%s</pdop>\n", s_dop ); | |
957 | g_free ( s_dop ); s_dop = NULL; | |
958 | ||
0d2b891f | 959 | fprintf ( f, " </%spt>\n", (context->options && context->options->is_route) ? "rte" : "trk" ); |
561e6ad0 EB |
960 | } |
961 | ||
962 | ||
ce4bd1cf | 963 | static void gpx_write_track ( VikTrack *t, GpxWritingContext *context ) |
561e6ad0 | 964 | { |
208d2084 RN |
965 | // Don't write invisible tracks when specified |
966 | if (context->options && !context->options->hidden && !t->visible) | |
967 | return; | |
968 | ||
0b72c435 | 969 | FILE *f = context->file; |
561e6ad0 | 970 | gchar *tmp; |
494eb388 | 971 | gboolean first_tp_is_newsegment = FALSE; /* must temporarily make it not so, but we want to restore state. not that it matters. */ |
561e6ad0 | 972 | |
ce4bd1cf RN |
973 | // Sanity clause |
974 | if ( t->name ) | |
975 | tmp = entitize ( t->name ); | |
976 | else | |
977 | tmp = g_strdup ("track"); | |
978 | ||
208d2084 RN |
979 | // NB 'hidden' is not part of any GPX standard - this appears to be a made up Viking 'extension' |
980 | // luckily most other GPX processing software ignores things they don't understand | |
0d2b891f RN |
981 | fprintf ( f, "<%s%s>\n <name>%s</name>\n", |
982 | t->is_route ? "rte" : "trk", | |
983 | t->visible ? "" : " hidden=\"hidden\"", | |
984 | tmp ); | |
561e6ad0 EB |
985 | g_free ( tmp ); |
986 | ||
987 | if ( t->comment ) | |
988 | { | |
989 | tmp = entitize ( t->comment ); | |
6b2f262e RN |
990 | fprintf ( f, " <cmt>%s</cmt>\n", tmp ); |
991 | g_free ( tmp ); | |
992 | } | |
993 | ||
994 | if ( t->description ) | |
995 | { | |
996 | tmp = entitize ( t->description ); | |
561e6ad0 EB |
997 | fprintf ( f, " <desc>%s</desc>\n", tmp ); |
998 | g_free ( tmp ); | |
999 | } | |
0d2b891f RN |
1000 | |
1001 | /* No such thing as a rteseg! */ | |
1002 | if ( !t->is_route ) | |
1003 | fprintf ( f, " <trkseg>\n" ); | |
561e6ad0 EB |
1004 | |
1005 | if ( t->trackpoints && t->trackpoints->data ) { | |
1006 | first_tp_is_newsegment = VIK_TRACKPOINT(t->trackpoints->data)->newsegment; | |
1007 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = FALSE; /* so we won't write </trkseg><trkseg> already */ | |
0b72c435 | 1008 | g_list_foreach ( t->trackpoints, (GFunc) gpx_write_trackpoint, context ); |
561e6ad0 | 1009 | VIK_TRACKPOINT(t->trackpoints->data)->newsegment = first_tp_is_newsegment; /* restore state */ |
494eb388 | 1010 | } |
561e6ad0 | 1011 | |
0d2b891f RN |
1012 | /* NB apparently no such thing as a rteseg! */ |
1013 | if (!t->is_route) | |
1014 | fprintf ( f, " </trkseg>\n"); | |
1015 | ||
1016 | fprintf ( f, "</%s>\n", t->is_route ? "rte" : "trk" ); | |
561e6ad0 EB |
1017 | } |
1018 | ||
5092de80 | 1019 | static void gpx_write_header( FILE *f ) |
561e6ad0 EB |
1020 | { |
1021 | fprintf(f, "<?xml version=\"1.0\"?>\n" | |
1022 | "<gpx version=\"1.0\" creator=\"Viking -- http://viking.sf.net/\"\n" | |
1023 | "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" | |
1024 | "xmlns=\"http://www.topografix.com/GPX/1/0\"\n" | |
1025 | "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n"); | |
5092de80 GB |
1026 | } |
1027 | ||
1028 | static void gpx_write_footer( FILE *f ) | |
1029 | { | |
561e6ad0 | 1030 | fprintf(f, "</gpx>\n"); |
5092de80 | 1031 | } |
561e6ad0 | 1032 | |
c9570f86 | 1033 | static int gpx_waypoint_compare(const void *x, const void *y) |
eab858a1 | 1034 | { |
c9570f86 RN |
1035 | VikWaypoint *a = (VikWaypoint *)x; |
1036 | VikWaypoint *b = (VikWaypoint *)y; | |
eab858a1 EB |
1037 | return strcmp(a->name,b->name); |
1038 | } | |
1039 | ||
0d2b891f RN |
1040 | static int gpx_track_compare_name(const void *x, const void *y) |
1041 | { | |
1042 | VikTrack *a = (VikTrack *)x; | |
1043 | VikTrack *b = (VikTrack *)y; | |
1044 | return strcmp(a->name,b->name); | |
1045 | } | |
1046 | ||
208d2084 | 1047 | void a_gpx_write_file ( VikTrwLayer *vtl, FILE *f, GpxWritingOptions *options ) |
0b72c435 OK |
1048 | { |
1049 | GpxWritingContext context = { options, f }; | |
eab858a1 | 1050 | |
5092de80 | 1051 | gpx_write_header ( f ); |
eab858a1 | 1052 | |
6ba42f1e RN |
1053 | gchar *tmp; |
1054 | const gchar *name = vik_layer_get_name(VIK_LAYER(vtl)); | |
1055 | if ( name ) { | |
1056 | tmp = entitize ( name ); | |
1057 | fprintf ( f, " <name>%s</name>\n", tmp ); | |
1058 | g_free ( tmp ); | |
1059 | } | |
1060 | ||
1061 | VikTRWMetadata *md = vik_trw_layer_get_metadata (vtl); | |
1062 | if ( md ) { | |
1063 | if ( md->author ) { | |
1064 | tmp = entitize ( md->author ); | |
1065 | fprintf ( f, " <author>%s</author>\n", tmp ); | |
1066 | g_free ( tmp ); | |
1067 | } | |
1068 | if ( md->description ) { | |
1069 | tmp = entitize ( md->description ); | |
1070 | fprintf ( f, " <desc>%s</desc>\n", tmp ); | |
1071 | g_free ( tmp ); | |
1072 | } | |
1073 | if ( md->timestamp ) { | |
1074 | tmp = entitize ( md->timestamp ); | |
1075 | fprintf ( f, " <time>%s</time>\n", tmp ); | |
1076 | g_free ( tmp ); | |
1077 | } | |
1078 | if ( md->keywords ) { | |
1079 | tmp = entitize ( md->keywords ); | |
1080 | fprintf ( f, " <keywords>%s</keywords>\n", tmp ); | |
1081 | g_free ( tmp ); | |
1082 | } | |
1083 | } | |
1084 | ||
978cd696 RN |
1085 | if ( vik_trw_layer_get_waypoints_visibility(vtl) || (options && options->hidden) ) { |
1086 | // gather waypoints in a list, then sort | |
1087 | GList *gl = g_hash_table_get_values ( vik_trw_layer_get_waypoints ( vtl ) ); | |
1088 | gl = g_list_sort ( gl, gpx_waypoint_compare ); | |
1089 | ||
1090 | for (GList *iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { | |
1091 | gpx_write_waypoint ( (VikWaypoint*)iter->data, &context ); | |
1092 | } | |
1093 | g_list_free ( gl ); | |
c9570f86 | 1094 | } |
eab858a1 | 1095 | |
978cd696 RN |
1096 | GList *gl = NULL; |
1097 | if ( vik_trw_layer_get_tracks_visibility(vtl) || (options && options->hidden) ) { | |
1098 | //gl = g_hash_table_get_values ( vik_trw_layer_get_tracks ( vtl ) ); | |
1099 | // Forming the list manually seems to produce one that is more likely to be nearer to the creation order | |
1100 | gpointer key, value; | |
1101 | GHashTableIter ght_iter; | |
1102 | g_hash_table_iter_init ( &ght_iter, vik_trw_layer_get_tracks ( vtl ) ); | |
1103 | while ( g_hash_table_iter_next (&ght_iter, &key, &value) ) { | |
1104 | gl = g_list_prepend ( gl ,value ); | |
1105 | } | |
1106 | gl = g_list_reverse ( gl ); | |
d13f1a57 | 1107 | |
978cd696 RN |
1108 | // Sort method determined by preference |
1109 | if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_TIME ) | |
1110 | gl = g_list_sort ( gl, vik_track_compare_timestamp ); | |
1111 | else if ( a_vik_get_gpx_export_trk_sort() == VIK_GPX_EXPORT_TRK_SORT_ALPHA ) | |
1112 | gl = g_list_sort ( gl, gpx_track_compare_name ); | |
b02cd3a3 | 1113 | } |
d13f1a57 | 1114 | |
978cd696 | 1115 | GList *glrte = NULL; |
0d2b891f | 1116 | // Routes sorted by name |
5466f124 | 1117 | if ( vik_trw_layer_get_routes_visibility(vtl) || (options && options->hidden) ) { |
978cd696 RN |
1118 | glrte = g_hash_table_get_values ( vik_trw_layer_get_routes ( vtl ) ); |
1119 | glrte = g_list_sort ( glrte, gpx_track_compare_name ); | |
1120 | } | |
ce4bd1cf | 1121 | |
0d2b891f RN |
1122 | // g_list_concat doesn't copy memory properly |
1123 | // so process each list separately | |
1124 | ||
1125 | GpxWritingContext context_tmp = context; | |
63959706 | 1126 | GpxWritingOptions opt_tmp = { FALSE, FALSE, FALSE, FALSE }; |
0d2b891f RN |
1127 | // Force trackpoints on tracks |
1128 | if ( !context.options ) | |
1129 | context_tmp.options = &opt_tmp; | |
1130 | context_tmp.options->is_route = FALSE; | |
1131 | ||
1132 | // Loop around each list and write each one | |
978cd696 | 1133 | for (GList *iter = g_list_first (gl); iter != NULL; iter = g_list_next (iter)) { |
0d2b891f RN |
1134 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); |
1135 | } | |
1136 | ||
1137 | // Routes (to get routepoints) | |
1138 | context_tmp.options->is_route = TRUE; | |
978cd696 | 1139 | for (GList *iter = g_list_first (glrte); iter != NULL; iter = g_list_next (iter)) { |
0d2b891f | 1140 | gpx_write_track ( (VikTrack*)iter->data, &context_tmp ); |
e3449376 | 1141 | } |
ce4bd1cf RN |
1142 | |
1143 | g_list_free ( gl ); | |
0d2b891f | 1144 | g_list_free ( glrte ); |
ce4bd1cf | 1145 | |
5092de80 GB |
1146 | gpx_write_footer ( f ); |
1147 | } | |
561e6ad0 | 1148 | |
208d2084 | 1149 | void a_gpx_write_track_file ( VikTrack *trk, FILE *f, GpxWritingOptions *options ) |
0b72c435 OK |
1150 | { |
1151 | GpxWritingContext context = {options, f}; | |
5092de80 | 1152 | gpx_write_header ( f ); |
ce4bd1cf | 1153 | gpx_write_track ( trk, &context ); |
5092de80 | 1154 | gpx_write_footer ( f ); |
561e6ad0 | 1155 | } |
12ed2b58 RN |
1156 | |
1157 | /** | |
1158 | * Common write of a temporary GPX file | |
1159 | */ | |
1160 | static gchar* write_tmp_file ( VikTrwLayer *vtl, VikTrack *trk, GpxWritingOptions *options ) | |
1161 | { | |
1162 | gchar *tmp_filename = NULL; | |
1163 | GError *error = NULL; | |
1164 | // Opening temporary file | |
1165 | int fd = g_file_open_tmp("viking_XXXXXX.gpx", &tmp_filename, &error); | |
1166 | if (fd < 0) { | |
1167 | g_warning ( _("failed to open temporary file: %s"), error->message ); | |
1168 | g_clear_error ( &error ); | |
1169 | return NULL; | |
1170 | } | |
1171 | g_debug ("%s: temporary file = %s", __FUNCTION__, tmp_filename); | |
1172 | ||
1173 | FILE *ff = fdopen (fd, "w"); | |
1174 | ||
1175 | if ( trk ) | |
1176 | a_gpx_write_track_file ( trk, ff, options ); | |
1177 | else | |
1178 | a_gpx_write_file ( vtl, ff, options ); | |
1179 | ||
1180 | fclose (ff); | |
1181 | ||
1182 | return tmp_filename; | |
1183 | } | |
1184 | ||
1185 | /* | |
1186 | * a_gpx_write_tmp_file: | |
1187 | * @vtl: The #VikTrwLayer to write | |
1188 | * @options: Possible ways of writing the file data (can be NULL) | |
1189 | * | |
1190 | * Returns: The name of newly created temporary GPX file | |
1191 | * This file should be removed once used and the string freed. | |
1192 | * If NULL then the process failed. | |
1193 | */ | |
1194 | gchar* a_gpx_write_tmp_file ( VikTrwLayer *vtl, GpxWritingOptions *options ) | |
1195 | { | |
1196 | return write_tmp_file ( vtl, NULL, options ); | |
1197 | } | |
1198 | ||
1199 | /* | |
1200 | * a_gpx_write_track_tmp_file: | |
1201 | * @trk: The #VikTrack to write | |
1202 | * @options: Possible ways of writing the file data (can be NULL) | |
1203 | * | |
1204 | * Returns: The name of newly created temporary GPX file | |
1205 | * This file should be removed once used and the string freed. | |
1206 | * If NULL then the process failed. | |
1207 | */ | |
1208 | gchar* a_gpx_write_track_tmp_file ( VikTrack *trk, GpxWritingOptions *options ) | |
1209 | { | |
1210 | return write_tmp_file ( NULL, trk, options ); | |
1211 | } |